packaging/utils/kernelpatch 2.6 --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/README.openswan-2 Mon Feb 9 13:51:03 2004 @@ -0,0 +1,112 @@ +* +* RCSID $Id: README.openswan-2,v 1.1 2003/12/10 01:07:49 mcr Exp $ +* + + **************************************** + * IPSEC for Linux, Release 2.xx series * + **************************************** + + + +1. Files + +The contents of linux/net/ipsec/ (see below) join the linux kernel source tree. +as provided for higher up. + +The programs/ directory contains the user-level utilities which you need +to run IPSEC. See the top-level top/INSTALL to compile and install them. + +The testing/ directory contains test scripts. + +The doc/ directory contains -- what else -- documentation. + +1.1. Kernel files + +The following are found in net/ipsec/: + +Makefile The Makefile +Config.in The configuration script for make menuconfig +defconfig Configuration defaults for first time. + +radij.c General-purpose radix-tree operations + +ipsec_ipcomp.c IPCOMP encapsulate/decapsulate code. +ipsec_ah.c Authentication Header (AH) encapsulate/decapsulate code. +ipsec_esp.c Encapsulated Security Payload (ESP) encap/decap code. + +pfkey_v2.c PF_KEYv2 socket interface code. +pfkey_v2_parser.c PF_KEYv2 message parsing and processing code. + +ipsec_init.c Initialization code, /proc interface. +ipsec_radij.c Interface with the radix tree code. +ipsec_netlink.c Interface with the netlink code. +ipsec_xform.c Routines and structures common to transforms. +ipsec_tunnel.c The outgoing packet processing code. +ipsec_rcv.c The incoming packet processing code. +ipsec_md5c.c Somewhat modified RSADSI MD5 C code. +ipsec_sha1.c Somewhat modified Steve Reid SHA-1 C code. + +sysctl_net_ipsec.c /proc/sys/net/ipsec/* variable definitions. + +version.c symbolic link to project version. + +radij.h Headers for radij.c + +ipcomp.h Headers used by IPCOMP code. + +ipsec_radij.h Interface with the radix tree code. +ipsec_netlink.h Headers used by the netlink interface. +ipsec_encap.h Headers defining encapsulation structures. +ipsec_xform.h Transform headers. +ipsec_tunnel.h Headers used by tunneling code. +ipsec_ipe4.h Headers for the IP-in-IP code. +ipsec_ah.h Headers common to AH transforms. +ipsec_md5h.h RSADSI MD5 headers. +ipsec_sha1.h SHA-1 headers. +ipsec_esp.h Headers common to ESP transfroms. +ipsec_rcv.h Headers for incoming packet processing code. + +1.2. User-level files. + +The following are found in utils/: + +eroute.c Create an "extended route" source code +spi.c Set up Security Associations source code +spigrp.c Link SPIs together source code. +tncfg.c Configure the tunneling features of the virtual interface + source code +klipsdebug.c Set/reset klips debugging features source code. +version.c symbolic link to project version. + +eroute.8 Create an "extended route" manual page +spi.8 Set up Security Associations manual page +spigrp.8 Link SPIs together manual page +tncfg.8 Configure the tunneling features of the virtual interface + manual page +klipsdebug.8 Set/reset klips debugging features manual page + +eroute.5 /proc/net/ipsec_eroute format manual page +spi.5 /proc/net/ipsec_spi format manual page +spigrp.5 /proc/net/ipsec_spigrp format manual page +tncfg.5 /proc/net/ipsec_tncfg format manual page +klipsdebug.5 /proc/net/ipsec_klipsdebug format manual page +version.5 /proc/net/ipsec_version format manual page +pf_key.5 /proc/net/pf_key format manual page + +Makefile Utilities makefile. + +*.8 Manpages for the respective utils. + + +1.3. Test files + +The test scripts are locate in testing/ and and documentation is found +at doc/src/umltesting.html. Automated testing via "make check" is available +provided that the User-Mode-Linux patches are available. + +* +* $Log: README.openswan-2,v $ +* Revision 1.1 2003/12/10 01:07:49 mcr +* documentation for additions. +* +* --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/crypto/ciphers/aes/test_main.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,41 @@ +#include +#include +#include +#include "aes_cbc.h" +#define AES_BLOCK_SIZE 16 +#define KEY_SIZE 128 /* bits */ +#define KEY "1234567890123456" +#define STR "hola guaso como estaisss ... 012" +#define STRSZ (sizeof(STR)-1) + +#define EMT_AESCBC_BLKLEN AES_BLOCK_SIZE +#define AES_CONTEXT_T aes_context +#define EMT_ESPAES_KEY_SZ 16 +int pretty_print(const unsigned char *buf, int count) { + int i=0; + for (;i +#include +#include +#include "aes.h" +#include "aes_xcbc_mac.h" +#define STR "Hola guasssso c|mo estais ...012" +void print_hash(const __u8 *hash) { + printf("%08x %08x %08x %08x\n", + *(__u32*)(&hash[0]), + *(__u32*)(&hash[4]), + *(__u32*)(&hash[8]), + *(__u32*)(&hash[12])); +} +int main(int argc, char *argv[]) { + aes_block key= { 0xdeadbeef, 0xceedcaca, 0xcafebabe, 0xff010204 }; + __u8 hash[16]; + char *str = argv[1]; + aes_context_mac ctx; + if (str==NULL) { + fprintf(stderr, "pasame el str\n"); + return 255; + } + AES_xcbc_mac_set_key(&ctx, (__u8 *)&key, sizeof(key)); + AES_xcbc_mac_hash(&ctx, str, strlen(str), hash); + print_hash(hash); + str[2]='x'; + AES_xcbc_mac_hash(&ctx, str, strlen(str), hash); + print_hash(hash); + return 0; +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/crypto/aes.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,97 @@ +// I retain copyright in this code but I encourage its free use provided +// that I don't carry any responsibility for the results. I am especially +// happy to see it used in free and open source software. If you do use +// it I would appreciate an acknowledgement of its origin in the code or +// the product that results and I would also appreciate knowing a little +// about the use to which it is being put. I am grateful to Frank Yellin +// for some ideas that are used in this implementation. +// +// Dr B. R. Gladman 6th April 2001. +// +// This is an implementation of the AES encryption algorithm (Rijndael) +// designed by Joan Daemen and Vincent Rijmen. This version is designed +// to provide both fixed and dynamic block and key lengths and can also +// run with either big or little endian internal byte order (see aes.h). +// It inputs block and key lengths in bytes with the legal values being +// 16, 24 and 32. + +/* + * Modified by Jari Ruusu, May 1 2001 + * - Fixed some compile warnings, code was ok but gcc warned anyway. + * - Changed basic types: byte -> unsigned char, word -> u_int32_t + * - Major name space cleanup: Names visible to outside now begin + * with "aes_" or "AES_". A lot of stuff moved from aes.h to aes.c + * - Removed C++ and DLL support as part of name space cleanup. + * - Eliminated unnecessary recomputation of tables. (actual bug fix) + * - Merged precomputed constant tables to aes.c file. + * - Removed data alignment restrictions for portability reasons. + * - Made block and key lengths accept bit count (128/192/256) + * as well byte count (16/24/32). + * - Removed all error checks. This change also eliminated the need + * to preinitialize the context struct to zero. + * - Removed some totally unused constants. + */ + +#ifndef _AES_H +#define _AES_H + +#if defined(__linux__) && defined(__KERNEL__) +# include +#else +# include +#endif + +// CONFIGURATION OPTIONS (see also aes.c) +// +// Define AES_BLOCK_SIZE to set the cipher block size (16, 24 or 32) or +// leave this undefined for dynamically variable block size (this will +// result in much slower code). +// IMPORTANT NOTE: AES_BLOCK_SIZE is in BYTES (16, 24, 32 or undefined). If +// left undefined a slower version providing variable block length is compiled + +#define AES_BLOCK_SIZE 16 + +// The number of key schedule words for different block and key lengths +// allowing for method of computation which requires the length to be a +// multiple of the key length +// +// Nk = 4 6 8 +// ------------- +// Nb = 4 | 60 60 64 +// 6 | 96 90 96 +// 8 | 120 120 120 + +#if !defined(AES_BLOCK_SIZE) || (AES_BLOCK_SIZE == 32) +#define AES_KS_LENGTH 120 +#define AES_RC_LENGTH 29 +#else +#define AES_KS_LENGTH 4 * AES_BLOCK_SIZE +#define AES_RC_LENGTH (9 * AES_BLOCK_SIZE) / 8 - 8 +#endif + +typedef struct +{ + u_int32_t aes_Nkey; // the number of words in the key input block + u_int32_t aes_Nrnd; // the number of cipher rounds + u_int32_t aes_e_key[AES_KS_LENGTH]; // the encryption key schedule + u_int32_t aes_d_key[AES_KS_LENGTH]; // the decryption key schedule +#if !defined(AES_BLOCK_SIZE) + u_int32_t aes_Ncol; // the number of columns in the cipher state +#endif +} aes_context; + +// THE CIPHER INTERFACE + +#if !defined(AES_BLOCK_SIZE) +extern void aes_set_blk(aes_context *, const int); +#endif +extern void aes_set_key(aes_context *, const unsigned char [], const int, const int); +extern void aes_encrypt(const aes_context *, const unsigned char [], unsigned char []); +extern void aes_decrypt(const aes_context *, const unsigned char [], unsigned char []); + +// The block length inputs to aes_set_block and aes_set_key are in numbers +// of bytes or bits. The calls to subroutines must be made in the above +// order but multiple calls can be made without repeating earlier calls +// if their parameters have not changed. + +#endif // _AES_H --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/crypto/aes_cbc.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,4 @@ +/* Glue header */ +#include "aes.h" +int AES_set_key(aes_context *aes_ctx, const u_int8_t * key, int keysize); +int AES_cbc_encrypt(aes_context *ctx, const u_int8_t * in, u_int8_t * out, int ilen, const u_int8_t * iv, int encrypt); --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/crypto/aes_xcbc_mac.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,12 @@ +#ifndef _AES_XCBC_MAC_H +#define _AES_XCBC_MAC_H + +typedef u_int32_t aes_block[4]; +typedef struct { + aes_context ctx_k1; + aes_block k2; + aes_block k3; +} aes_context_mac; +int AES_xcbc_mac_set_key(aes_context_mac *ctxm, const u_int8_t *key, int keylen); +int AES_xcbc_mac_hash(const aes_context_mac *ctxm, const u_int8_t * in, int ilen, u_int8_t hash[16]); +#endif /* _AES_XCBC_MAC_H */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/crypto/cbc_generic.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,110 @@ +#ifndef _CBC_GENERIC_H +#define _CBC_GENERIC_H +/* + * CBC macro helpers + * + * Author: JuanJo Ciarlante + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + */ + +/* + * Heavily inspired in loop_AES + */ +#define CBC_IMPL_BLK16(name, ctx_type, addr_type, enc_func, dec_func) \ +int name(ctx_type *ctx, const u_int8_t * in, u_int8_t * out, int ilen, const u_int8_t * iv, int encrypt) { \ + int ret=ilen, pos; \ + const u_int32_t *iv_i; \ + if ((ilen) % 16) return 0; \ + if (encrypt) { \ + pos=0; \ + while(pos=0) { \ + dec_func(ctx, (const addr_type) in, (addr_type) out); \ + if (pos==0) \ + iv_i=(const u_int32_t*) (iv); \ + else \ + iv_i=(const u_int32_t*) (in-16); \ + *((u_int32_t *)(&out[ 0])) ^= iv_i[0]; \ + *((u_int32_t *)(&out[ 4])) ^= iv_i[1]; \ + *((u_int32_t *)(&out[ 8])) ^= iv_i[2]; \ + *((u_int32_t *)(&out[12])) ^= iv_i[3]; \ + in-=16; \ + out-=16; \ + pos-=16; \ + } \ + } \ + return ret; \ +} +#define CBC_IMPL_BLK8(name, ctx_type, addr_type, enc_func, dec_func) \ +int name(ctx_type *ctx, u_int8_t * in, u_int8_t * out, int ilen, const u_int8_t * iv, int encrypt) { \ + int ret=ilen, pos; \ + const u_int32_t *iv_i; \ + if ((ilen) % 8) return 0; \ + if (encrypt) { \ + pos=0; \ + while(pos=0) { \ + dec_func(ctx, (const addr_type)in, (addr_type)out); \ + if (pos==0) \ + iv_i=(const u_int32_t*) (iv); \ + else \ + iv_i=(const u_int32_t*) (in-8); \ + *((u_int32_t *)(&out[ 0])) ^= iv_i[0]; \ + *((u_int32_t *)(&out[ 4])) ^= iv_i[1]; \ + in-=8; \ + out-=8; \ + pos-=8; \ + } \ + } \ + return ret; \ +} +#define CBC_DECL(name, ctx_type) \ +int name(ctx_type *ctx, u_int8_t * in, u_int8_t * out, int ilen, const u_int8_t * iv, int encrypt) +/* +Eg.: +CBC_IMPL_BLK16(AES_cbc_encrypt, aes_context, u_int8_t *, aes_encrypt, aes_decrypt); +CBC_DECL(AES_cbc_encrypt, aes_context); +*/ +#endif /* _CBC_GENERIC_H */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/crypto/des.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,298 @@ +/* crypto/des/des.org */ +/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +/* WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING + * + * Always modify des.org since des.h is automatically generated from + * it during SSLeay configuration. + * + * WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING + */ + +#ifndef HEADER_DES_H +#define HEADER_DES_H + +#ifdef __cplusplus +extern "C" { +#endif + + +/* If this is set to 'unsigned int' on a DEC Alpha, this gives about a + * %20 speed up (longs are 8 bytes, int's are 4). */ +/* Must be unsigned int on ia64/Itanium or DES breaks badly */ + +#ifdef __KERNEL__ +#include +#else +#include +#endif + +#ifndef DES_LONG +#define DES_LONG u_int32_t +#endif + +typedef unsigned char des_cblock[8]; +typedef struct { des_cblock ks; } des_key_schedule[16]; + +#define DES_KEY_SZ (sizeof(des_cblock)) +#define DES_SCHEDULE_SZ (sizeof(des_key_schedule)) + +#define DES_ENCRYPT 1 +#define DES_DECRYPT 0 + +#define DES_CBC_MODE 0 +#define DES_PCBC_MODE 1 + +#define des_ecb2_encrypt(i,o,k1,k2,e) \ + des_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e)) + +#define des_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \ + des_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e)) + +#define des_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \ + des_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e)) + +#define des_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \ + des_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n)) + +#define C_Block des_cblock +#define Key_schedule des_key_schedule +#ifdef KERBEROS +#define ENCRYPT DES_ENCRYPT +#define DECRYPT DES_DECRYPT +#endif +#define KEY_SZ DES_KEY_SZ +#define string_to_key des_string_to_key +#define read_pw_string des_read_pw_string +#define random_key des_random_key +#define pcbc_encrypt des_pcbc_encrypt +#define set_key des_set_key +#define key_sched des_key_sched +#define ecb_encrypt des_ecb_encrypt +#define cbc_encrypt des_cbc_encrypt +#define ncbc_encrypt des_ncbc_encrypt +#define xcbc_encrypt des_xcbc_encrypt +#define cbc_cksum des_cbc_cksum +#define quad_cksum des_quad_cksum + +/* For compatibility with the MIT lib - eay 20/05/92 */ +typedef des_key_schedule bit_64; +#define des_fixup_key_parity des_set_odd_parity +#define des_check_key_parity check_parity + +extern int des_check_key; /* defaults to false */ +extern int des_rw_mode; /* defaults to DES_PCBC_MODE */ + +/* The next line is used to disable full ANSI prototypes, if your + * compiler has problems with the prototypes, make sure this line always + * evaluates to true :-) */ +#if defined(MSDOS) || defined(__STDC__) +#undef NOPROTO +#endif +#ifndef NOPROTO +char *des_options(void); +void des_ecb3_encrypt(des_cblock *input,des_cblock *output, + des_key_schedule ks1,des_key_schedule ks2, + des_key_schedule ks3, int enc); +DES_LONG des_cbc_cksum(des_cblock *input,des_cblock *output, + long length,des_key_schedule schedule,des_cblock *ivec); +void des_cbc_encrypt(des_cblock *input,des_cblock *output,long length, + des_key_schedule schedule,des_cblock *ivec,int enc); +void des_ncbc_encrypt(des_cblock *input,des_cblock *output,long length, + des_key_schedule schedule,des_cblock *ivec,int enc); +void des_xcbc_encrypt(des_cblock *input,des_cblock *output,long length, + des_key_schedule schedule,des_cblock *ivec, + des_cblock *inw,des_cblock *outw,int enc); +void des_cfb_encrypt(unsigned char *in,unsigned char *out,int numbits, + long length,des_key_schedule schedule,des_cblock *ivec,int enc); +void des_ecb_encrypt(des_cblock *input,des_cblock *output, + des_key_schedule ks,int enc); +void des_encrypt(DES_LONG *data,des_key_schedule ks, int enc); +void des_encrypt2(DES_LONG *data,des_key_schedule ks, int enc); +void des_encrypt3(DES_LONG *data, des_key_schedule ks1, + des_key_schedule ks2, des_key_schedule ks3); +void des_decrypt3(DES_LONG *data, des_key_schedule ks1, + des_key_schedule ks2, des_key_schedule ks3); +void des_ede3_cbc_encrypt(des_cblock *input, des_cblock *output, + long length, des_key_schedule ks1, des_key_schedule ks2, + des_key_schedule ks3, des_cblock *ivec, int enc); +void des_ede3_cfb64_encrypt(unsigned char *in, unsigned char *out, + long length, des_key_schedule ks1, des_key_schedule ks2, + des_key_schedule ks3, des_cblock *ivec, int *num, int enc); +void des_ede3_ofb64_encrypt(unsigned char *in, unsigned char *out, + long length, des_key_schedule ks1, des_key_schedule ks2, + des_key_schedule ks3, des_cblock *ivec, int *num); + +void des_xwhite_in2out(des_cblock (*des_key), des_cblock (*in_white), + des_cblock (*out_white)); + +int des_enc_read(int fd,char *buf,int len,des_key_schedule sched, + des_cblock *iv); +int des_enc_write(int fd,char *buf,int len,des_key_schedule sched, + des_cblock *iv); +char *des_fcrypt(const char *buf,const char *salt, char *ret); +#ifdef PERL5 +char *des_crypt(const char *buf,const char *salt); +#else +/* some stupid compilers complain because I have declared char instead + * of const char */ +#ifndef __KERNEL__ +#ifdef HEADER_DES_LOCL_H +char *crypt(const char *buf,const char *salt); +#else /* HEADER_DES_LOCL_H */ +char *crypt(void); +#endif /* HEADER_DES_LOCL_H */ +#endif /* __KERNEL__ */ +#endif /* PERL5 */ +void des_ofb_encrypt(unsigned char *in,unsigned char *out, + int numbits,long length,des_key_schedule schedule,des_cblock *ivec); +void des_pcbc_encrypt(des_cblock *input,des_cblock *output,long length, + des_key_schedule schedule,des_cblock *ivec,int enc); +DES_LONG des_quad_cksum(des_cblock *input,des_cblock *output, + long length,int out_count,des_cblock *seed); +void des_random_seed(des_cblock key); +void des_random_key(des_cblock ret); +int des_read_password(des_cblock *key,char *prompt,int verify); +int des_read_2passwords(des_cblock *key1,des_cblock *key2, + char *prompt,int verify); +int des_read_pw_string(char *buf,int length,char *prompt,int verify); +void des_set_odd_parity(des_cblock *key); +int des_is_weak_key(des_cblock *key); +int des_set_key(des_cblock *key,des_key_schedule schedule); +int des_key_sched(des_cblock *key,des_key_schedule schedule); +void des_string_to_key(char *str,des_cblock *key); +void des_string_to_2keys(char *str,des_cblock *key1,des_cblock *key2); +void des_cfb64_encrypt(unsigned char *in, unsigned char *out, long length, + des_key_schedule schedule, des_cblock *ivec, int *num, int enc); +void des_ofb64_encrypt(unsigned char *in, unsigned char *out, long length, + des_key_schedule schedule, des_cblock *ivec, int *num); +int des_read_pw(char *buf, char *buff, int size, char *prompt, int verify); + +/* Extra functions from Mark Murray */ +/* The following functions are not in the normal unix build or the + * SSLeay build. When using the SSLeay build, use RAND_seed() + * and RAND_bytes() instead. */ +int des_new_random_key(des_cblock *key); +void des_init_random_number_generator(des_cblock *key); +void des_set_random_generator_seed(des_cblock *key); +void des_set_sequence_number(des_cblock new_sequence_number); +void des_generate_random_block(des_cblock *block); + +#else + +char *des_options(); +void des_ecb3_encrypt(); +DES_LONG des_cbc_cksum(); +void des_cbc_encrypt(); +void des_ncbc_encrypt(); +void des_xcbc_encrypt(); +void des_cfb_encrypt(); +void des_ede3_cfb64_encrypt(); +void des_ede3_ofb64_encrypt(); +void des_ecb_encrypt(); +void des_encrypt(); +void des_encrypt2(); +void des_encrypt3(); +void des_decrypt3(); +void des_ede3_cbc_encrypt(); +int des_enc_read(); +int des_enc_write(); +char *des_fcrypt(); +#ifdef PERL5 +char *des_crypt(); +#else +char *crypt(); +#endif +void des_ofb_encrypt(); +void des_pcbc_encrypt(); +DES_LONG des_quad_cksum(); +void des_random_seed(); +void des_random_key(); +int des_read_password(); +int des_read_2passwords(); +int des_read_pw_string(); +void des_set_odd_parity(); +int des_is_weak_key(); +int des_set_key(); +int des_key_sched(); +void des_string_to_key(); +void des_string_to_2keys(); +void des_cfb64_encrypt(); +void des_ofb64_encrypt(); +int des_read_pw(); +void des_xwhite_in2out(); + +/* Extra functions from Mark Murray */ +/* The following functions are not in the normal unix build or the + * SSLeay build. When using the SSLeay build, use RAND_seed() + * and RAND_bytes() instead. */ +#ifdef FreeBSD +int des_new_random_key(); +void des_init_random_number_generator(); +void des_set_random_generator_seed(); +void des_set_sequence_number(); +void des_generate_random_block(); +#endif + +#endif + +#ifdef __cplusplus +} +#endif + +#endif --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/des/des_locl.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,515 @@ +/* crypto/des/des_locl.org */ +/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +/* WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING + * + * Always modify des_locl.org since des_locl.h is automatically generated from + * it during SSLeay configuration. + * + * WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING + */ + +#ifndef HEADER_DES_LOCL_H +#define HEADER_DES_LOCL_H + +#if defined(WIN32) || defined(WIN16) +#ifndef MSDOS +#define MSDOS +#endif +#endif + +#include "crypto/des.h" + +#ifndef DES_DEFAULT_OPTIONS +/* the following is tweaked from a config script, that is why it is a + * protected undef/define */ +#ifndef DES_PTR +#define DES_PTR +#endif + +/* This helps C compiler generate the correct code for multiple functional + * units. It reduces register dependancies at the expense of 2 more + * registers */ +#ifndef DES_RISC1 +#define DES_RISC1 +#endif + +#ifndef DES_RISC2 +#undef DES_RISC2 +#endif + +#if defined(DES_RISC1) && defined(DES_RISC2) +YOU SHOULD NOT HAVE BOTH DES_RISC1 AND DES_RISC2 DEFINED!!!!! +#endif + +/* Unroll the inner loop, this sometimes helps, sometimes hinders. + * Very mucy CPU dependant */ +#ifndef DES_UNROLL +#define DES_UNROLL +#endif + +/* These default values were supplied by + * Peter Gutman + * They are only used if nothing else has been defined */ +#if !defined(DES_PTR) && !defined(DES_RISC1) && !defined(DES_RISC2) && !defined(DES_UNROLL) +/* Special defines which change the way the code is built depending on the + CPU and OS. For SGI machines you can use _MIPS_SZLONG (32 or 64) to find + even newer MIPS CPU's, but at the moment one size fits all for + optimization options. Older Sparc's work better with only UNROLL, but + there's no way to tell at compile time what it is you're running on */ + +#if defined( sun ) /* Newer Sparc's */ + #define DES_PTR + #define DES_RISC1 + #define DES_UNROLL +#elif defined( __ultrix ) /* Older MIPS */ + #define DES_PTR + #define DES_RISC2 + #define DES_UNROLL +#elif defined( __osf1__ ) /* Alpha */ + #define DES_PTR + #define DES_RISC2 +#elif defined ( _AIX ) /* RS6000 */ + /* Unknown */ +#elif defined( __hpux ) /* HP-PA */ + /* Unknown */ +#elif defined( __aux ) /* 68K */ + /* Unknown */ +#elif defined( __dgux ) /* 88K (but P6 in latest boxes) */ + #define DES_UNROLL +#elif defined( __sgi ) /* Newer MIPS */ + #define DES_PTR + #define DES_RISC2 + #define DES_UNROLL +#elif defined( i386 ) /* x86 boxes, should be gcc */ + #define DES_PTR + #define DES_RISC1 + #define DES_UNROLL +#endif /* Systems-specific speed defines */ +#endif + +#endif /* DES_DEFAULT_OPTIONS */ + +#ifdef MSDOS /* Visual C++ 2.1 (Windows NT/95) */ +#include +#include +#include +#include +#ifndef RAND +#define RAND +#endif +#undef NOPROTO +#endif + +#if defined(__STDC__) || defined(VMS) || defined(M_XENIX) || defined(MSDOS) +#ifndef __KERNEL__ +#include +#else +#include +#endif +#endif + +#ifndef RAND +#define RAND +#endif + +#ifdef linux +#undef RAND +#endif + +#ifdef MSDOS +#define getpid() 2 +#define RAND +#undef NOPROTO +#endif + +#if defined(NOCONST) +#define const +#endif + +#ifdef __STDC__ +#undef NOPROTO +#endif + +#ifdef RAND +#define srandom(s) srand(s) +#define random rand +#endif + +#define ITERATIONS 16 +#define HALF_ITERATIONS 8 + +/* used in des_read and des_write */ +#define MAXWRITE (1024*16) +#define BSIZE (MAXWRITE+4) + +#define c2l(c,l) (l =((DES_LONG)(*((c)++))) , \ + l|=((DES_LONG)(*((c)++)))<< 8L, \ + l|=((DES_LONG)(*((c)++)))<<16L, \ + l|=((DES_LONG)(*((c)++)))<<24L) + +/* NOTE - c is not incremented as per c2l */ +#define c2ln(c,l1,l2,n) { \ + c+=n; \ + l1=l2=0; \ + switch (n) { \ + case 8: l2 =((DES_LONG)(*(--(c))))<<24L; \ + case 7: l2|=((DES_LONG)(*(--(c))))<<16L; \ + case 6: l2|=((DES_LONG)(*(--(c))))<< 8L; \ + case 5: l2|=((DES_LONG)(*(--(c)))); \ + case 4: l1 =((DES_LONG)(*(--(c))))<<24L; \ + case 3: l1|=((DES_LONG)(*(--(c))))<<16L; \ + case 2: l1|=((DES_LONG)(*(--(c))))<< 8L; \ + case 1: l1|=((DES_LONG)(*(--(c)))); \ + } \ + } + +#define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \ + *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ + *((c)++)=(unsigned char)(((l)>>16L)&0xff), \ + *((c)++)=(unsigned char)(((l)>>24L)&0xff)) + +/* replacements for htonl and ntohl since I have no idea what to do + * when faced with machines with 8 byte longs. */ +#define HDRSIZE 4 + +#define n2l(c,l) (l =((DES_LONG)(*((c)++)))<<24L, \ + l|=((DES_LONG)(*((c)++)))<<16L, \ + l|=((DES_LONG)(*((c)++)))<< 8L, \ + l|=((DES_LONG)(*((c)++)))) + +#define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24L)&0xff), \ + *((c)++)=(unsigned char)(((l)>>16L)&0xff), \ + *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ + *((c)++)=(unsigned char)(((l) )&0xff)) + +/* NOTE - c is not incremented as per l2c */ +#define l2cn(l1,l2,c,n) { \ + c+=n; \ + switch (n) { \ + case 8: *(--(c))=(unsigned char)(((l2)>>24L)&0xff); \ + case 7: *(--(c))=(unsigned char)(((l2)>>16L)&0xff); \ + case 6: *(--(c))=(unsigned char)(((l2)>> 8L)&0xff); \ + case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \ + case 4: *(--(c))=(unsigned char)(((l1)>>24L)&0xff); \ + case 3: *(--(c))=(unsigned char)(((l1)>>16L)&0xff); \ + case 2: *(--(c))=(unsigned char)(((l1)>> 8L)&0xff); \ + case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \ + } \ + } + +#if defined(WIN32) +#define ROTATE(a,n) (_lrotr(a,n)) +#else +#define ROTATE(a,n) (((a)>>(n))+((a)<<(32-(n)))) +#endif + +/* Don't worry about the LOAD_DATA() stuff, that is used by + * fcrypt() to add it's little bit to the front */ + +#ifdef DES_FCRYPT + +#define LOAD_DATA_tmp(R,S,u,t,E0,E1) \ + { DES_LONG tmp; LOAD_DATA(R,S,u,t,E0,E1,tmp); } + +#define LOAD_DATA(R,S,u,t,E0,E1,tmp) \ + t=R^(R>>16L); \ + u=t&E0; t&=E1; \ + tmp=(u<<16); u^=R^s[S ]; u^=tmp; \ + tmp=(t<<16); t^=R^s[S+1]; t^=tmp +#else +#define LOAD_DATA_tmp(a,b,c,d,e,f) LOAD_DATA(a,b,c,d,e,f,g) +#define LOAD_DATA(R,S,u,t,E0,E1,tmp) \ + u=R^s[S ]; \ + t=R^s[S+1] +#endif + +/* The changes to this macro may help or hinder, depending on the + * compiler and the achitecture. gcc2 always seems to do well :-). + * Inspired by Dana How + * DO NOT use the alternative version on machines with 8 byte longs. + * It does not seem to work on the Alpha, even when DES_LONG is 4 + * bytes, probably an issue of accessing non-word aligned objects :-( */ +#ifdef DES_PTR + +/* It recently occured to me that 0^0^0^0^0^0^0 == 0, so there + * is no reason to not xor all the sub items together. This potentially + * saves a register since things can be xored directly into L */ + +#if defined(DES_RISC1) || defined(DES_RISC2) +#ifdef DES_RISC1 +#define D_ENCRYPT(LL,R,S) { \ + unsigned int u1,u2,u3; \ + LOAD_DATA(R,S,u,t,E0,E1,u1); \ + u2=(int)u>>8L; \ + u1=(int)u&0xfc; \ + u2&=0xfc; \ + t=ROTATE(t,4); \ + u>>=16L; \ + LL^= *(DES_LONG *)((unsigned char *)des_SP +u1); \ + LL^= *(DES_LONG *)((unsigned char *)des_SP+0x200+u2); \ + u3=(int)(u>>8L); \ + u1=(int)u&0xfc; \ + u3&=0xfc; \ + LL^= *(DES_LONG *)((unsigned char *)des_SP+0x400+u1); \ + LL^= *(DES_LONG *)((unsigned char *)des_SP+0x600+u3); \ + u2=(int)t>>8L; \ + u1=(int)t&0xfc; \ + u2&=0xfc; \ + t>>=16L; \ + LL^= *(DES_LONG *)((unsigned char *)des_SP+0x100+u1); \ + LL^= *(DES_LONG *)((unsigned char *)des_SP+0x300+u2); \ + u3=(int)t>>8L; \ + u1=(int)t&0xfc; \ + u3&=0xfc; \ + LL^= *(DES_LONG *)((unsigned char *)des_SP+0x500+u1); \ + LL^= *(DES_LONG *)((unsigned char *)des_SP+0x700+u3); } +#endif +#ifdef DES_RISC2 +#define D_ENCRYPT(LL,R,S) { \ + unsigned int u1,u2,s1,s2; \ + LOAD_DATA(R,S,u,t,E0,E1,u1); \ + u2=(int)u>>8L; \ + u1=(int)u&0xfc; \ + u2&=0xfc; \ + t=ROTATE(t,4); \ + LL^= *(DES_LONG *)((unsigned char *)des_SP +u1); \ + LL^= *(DES_LONG *)((unsigned char *)des_SP+0x200+u2); \ + s1=(int)(u>>16L); \ + s2=(int)(u>>24L); \ + s1&=0xfc; \ + s2&=0xfc; \ + LL^= *(DES_LONG *)((unsigned char *)des_SP+0x400+s1); \ + LL^= *(DES_LONG *)((unsigned char *)des_SP+0x600+s2); \ + u2=(int)t>>8L; \ + u1=(int)t&0xfc; \ + u2&=0xfc; \ + LL^= *(DES_LONG *)((unsigned char *)des_SP+0x100+u1); \ + LL^= *(DES_LONG *)((unsigned char *)des_SP+0x300+u2); \ + s1=(int)(t>>16L); \ + s2=(int)(t>>24L); \ + s1&=0xfc; \ + s2&=0xfc; \ + LL^= *(DES_LONG *)((unsigned char *)des_SP+0x500+s1); \ + LL^= *(DES_LONG *)((unsigned char *)des_SP+0x700+s2); } +#endif +#else +#define D_ENCRYPT(LL,R,S) { \ + LOAD_DATA_tmp(R,S,u,t,E0,E1); \ + t=ROTATE(t,4); \ + LL^= \ + *(DES_LONG *)((unsigned char *)des_SP +((u )&0xfc))^ \ + *(DES_LONG *)((unsigned char *)des_SP+0x200+((u>> 8L)&0xfc))^ \ + *(DES_LONG *)((unsigned char *)des_SP+0x400+((u>>16L)&0xfc))^ \ + *(DES_LONG *)((unsigned char *)des_SP+0x600+((u>>24L)&0xfc))^ \ + *(DES_LONG *)((unsigned char *)des_SP+0x100+((t )&0xfc))^ \ + *(DES_LONG *)((unsigned char *)des_SP+0x300+((t>> 8L)&0xfc))^ \ + *(DES_LONG *)((unsigned char *)des_SP+0x500+((t>>16L)&0xfc))^ \ + *(DES_LONG *)((unsigned char *)des_SP+0x700+((t>>24L)&0xfc)); } +#endif + +#else /* original version */ + +#if defined(DES_RISC1) || defined(DES_RISC2) +#ifdef DES_RISC1 +#define D_ENCRYPT(LL,R,S) {\ + unsigned int u1,u2,u3; \ + LOAD_DATA(R,S,u,t,E0,E1,u1); \ + u>>=2L; \ + t=ROTATE(t,6); \ + u2=(int)u>>8L; \ + u1=(int)u&0x3f; \ + u2&=0x3f; \ + u>>=16L; \ + LL^=des_SPtrans[0][u1]; \ + LL^=des_SPtrans[2][u2]; \ + u3=(int)u>>8L; \ + u1=(int)u&0x3f; \ + u3&=0x3f; \ + LL^=des_SPtrans[4][u1]; \ + LL^=des_SPtrans[6][u3]; \ + u2=(int)t>>8L; \ + u1=(int)t&0x3f; \ + u2&=0x3f; \ + t>>=16L; \ + LL^=des_SPtrans[1][u1]; \ + LL^=des_SPtrans[3][u2]; \ + u3=(int)t>>8L; \ + u1=(int)t&0x3f; \ + u3&=0x3f; \ + LL^=des_SPtrans[5][u1]; \ + LL^=des_SPtrans[7][u3]; } +#endif +#ifdef DES_RISC2 +#define D_ENCRYPT(LL,R,S) {\ + unsigned int u1,u2,s1,s2; \ + LOAD_DATA(R,S,u,t,E0,E1,u1); \ + u>>=2L; \ + t=ROTATE(t,6); \ + u2=(int)u>>8L; \ + u1=(int)u&0x3f; \ + u2&=0x3f; \ + LL^=des_SPtrans[0][u1]; \ + LL^=des_SPtrans[2][u2]; \ + s1=(int)u>>16L; \ + s2=(int)u>>24L; \ + s1&=0x3f; \ + s2&=0x3f; \ + LL^=des_SPtrans[4][s1]; \ + LL^=des_SPtrans[6][s2]; \ + u2=(int)t>>8L; \ + u1=(int)t&0x3f; \ + u2&=0x3f; \ + LL^=des_SPtrans[1][u1]; \ + LL^=des_SPtrans[3][u2]; \ + s1=(int)t>>16; \ + s2=(int)t>>24L; \ + s1&=0x3f; \ + s2&=0x3f; \ + LL^=des_SPtrans[5][s1]; \ + LL^=des_SPtrans[7][s2]; } +#endif + +#else + +#define D_ENCRYPT(LL,R,S) {\ + LOAD_DATA_tmp(R,S,u,t,E0,E1); \ + t=ROTATE(t,4); \ + LL^=\ + des_SPtrans[0][(u>> 2L)&0x3f]^ \ + des_SPtrans[2][(u>>10L)&0x3f]^ \ + des_SPtrans[4][(u>>18L)&0x3f]^ \ + des_SPtrans[6][(u>>26L)&0x3f]^ \ + des_SPtrans[1][(t>> 2L)&0x3f]^ \ + des_SPtrans[3][(t>>10L)&0x3f]^ \ + des_SPtrans[5][(t>>18L)&0x3f]^ \ + des_SPtrans[7][(t>>26L)&0x3f]; } +#endif +#endif + + /* IP and FP + * The problem is more of a geometric problem that random bit fiddling. + 0 1 2 3 4 5 6 7 62 54 46 38 30 22 14 6 + 8 9 10 11 12 13 14 15 60 52 44 36 28 20 12 4 + 16 17 18 19 20 21 22 23 58 50 42 34 26 18 10 2 + 24 25 26 27 28 29 30 31 to 56 48 40 32 24 16 8 0 + + 32 33 34 35 36 37 38 39 63 55 47 39 31 23 15 7 + 40 41 42 43 44 45 46 47 61 53 45 37 29 21 13 5 + 48 49 50 51 52 53 54 55 59 51 43 35 27 19 11 3 + 56 57 58 59 60 61 62 63 57 49 41 33 25 17 9 1 + + The output has been subject to swaps of the form + 0 1 -> 3 1 but the odd and even bits have been put into + 2 3 2 0 + different words. The main trick is to remember that + t=((l>>size)^r)&(mask); + r^=t; + l^=(t<>(n))^(b))&(m)),\ + (b)^=(t),\ + (a)^=((t)<<(n))) + +#define IP(l,r) \ + { \ + register DES_LONG tt; \ + PERM_OP(r,l,tt, 4,0x0f0f0f0fL); \ + PERM_OP(l,r,tt,16,0x0000ffffL); \ + PERM_OP(r,l,tt, 2,0x33333333L); \ + PERM_OP(l,r,tt, 8,0x00ff00ffL); \ + PERM_OP(r,l,tt, 1,0x55555555L); \ + } + +#define FP(l,r) \ + { \ + register DES_LONG tt; \ + PERM_OP(l,r,tt, 1,0x55555555L); \ + PERM_OP(r,l,tt, 8,0x00ff00ffL); \ + PERM_OP(l,r,tt, 2,0x33333333L); \ + PERM_OP(r,l,tt,16,0x0000ffffL); \ + PERM_OP(l,r,tt, 4,0x0f0f0f0fL); \ + } + +extern const DES_LONG des_SPtrans[8][64]; + +#ifndef NOPROTO +void fcrypt_body(DES_LONG *out,des_key_schedule ks, + DES_LONG Eswap0, DES_LONG Eswap1); +#else +void fcrypt_body(); +#endif + +#endif --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/des/des_ver.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,60 @@ +/* crypto/des/des_ver.h */ +/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +extern char *DES_version; /* SSLeay version string */ +extern char *libdes_version; /* old libdes version string */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/des/podd.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,75 @@ +/* crypto/des/podd.h */ +/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +static const unsigned char odd_parity[256]={ + 1, 1, 2, 2, 4, 4, 7, 7, 8, 8, 11, 11, 13, 13, 14, 14, + 16, 16, 19, 19, 21, 21, 22, 22, 25, 25, 26, 26, 28, 28, 31, 31, + 32, 32, 35, 35, 37, 37, 38, 38, 41, 41, 42, 42, 44, 44, 47, 47, + 49, 49, 50, 50, 52, 52, 55, 55, 56, 56, 59, 59, 61, 61, 62, 62, + 64, 64, 67, 67, 69, 69, 70, 70, 73, 73, 74, 74, 76, 76, 79, 79, + 81, 81, 82, 82, 84, 84, 87, 87, 88, 88, 91, 91, 93, 93, 94, 94, + 97, 97, 98, 98,100,100,103,103,104,104,107,107,109,109,110,110, +112,112,115,115,117,117,118,118,121,121,122,122,124,124,127,127, +128,128,131,131,133,133,134,134,137,137,138,138,140,140,143,143, +145,145,146,146,148,148,151,151,152,152,155,155,157,157,158,158, +161,161,162,162,164,164,167,167,168,168,171,171,173,173,174,174, +176,176,179,179,181,181,182,182,185,185,186,186,188,188,191,191, +193,193,194,194,196,196,199,199,200,200,203,203,205,205,206,206, +208,208,211,211,213,213,214,214,217,217,218,218,220,220,223,223, +224,224,227,227,229,229,230,230,233,233,234,234,236,236,239,239, +241,241,242,242,244,244,247,247,248,248,251,251,253,253,254,254}; --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/des/sk.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,204 @@ +/* crypto/des/sk.h */ +/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +static const DES_LONG des_skb[8][64]={ +{ +/* for C bits (numbered as per FIPS 46) 1 2 3 4 5 6 */ +0x00000000L,0x00000010L,0x20000000L,0x20000010L, +0x00010000L,0x00010010L,0x20010000L,0x20010010L, +0x00000800L,0x00000810L,0x20000800L,0x20000810L, +0x00010800L,0x00010810L,0x20010800L,0x20010810L, +0x00000020L,0x00000030L,0x20000020L,0x20000030L, +0x00010020L,0x00010030L,0x20010020L,0x20010030L, +0x00000820L,0x00000830L,0x20000820L,0x20000830L, +0x00010820L,0x00010830L,0x20010820L,0x20010830L, +0x00080000L,0x00080010L,0x20080000L,0x20080010L, +0x00090000L,0x00090010L,0x20090000L,0x20090010L, +0x00080800L,0x00080810L,0x20080800L,0x20080810L, +0x00090800L,0x00090810L,0x20090800L,0x20090810L, +0x00080020L,0x00080030L,0x20080020L,0x20080030L, +0x00090020L,0x00090030L,0x20090020L,0x20090030L, +0x00080820L,0x00080830L,0x20080820L,0x20080830L, +0x00090820L,0x00090830L,0x20090820L,0x20090830L, +},{ +/* for C bits (numbered as per FIPS 46) 7 8 10 11 12 13 */ +0x00000000L,0x02000000L,0x00002000L,0x02002000L, +0x00200000L,0x02200000L,0x00202000L,0x02202000L, +0x00000004L,0x02000004L,0x00002004L,0x02002004L, +0x00200004L,0x02200004L,0x00202004L,0x02202004L, +0x00000400L,0x02000400L,0x00002400L,0x02002400L, +0x00200400L,0x02200400L,0x00202400L,0x02202400L, +0x00000404L,0x02000404L,0x00002404L,0x02002404L, +0x00200404L,0x02200404L,0x00202404L,0x02202404L, +0x10000000L,0x12000000L,0x10002000L,0x12002000L, +0x10200000L,0x12200000L,0x10202000L,0x12202000L, +0x10000004L,0x12000004L,0x10002004L,0x12002004L, +0x10200004L,0x12200004L,0x10202004L,0x12202004L, +0x10000400L,0x12000400L,0x10002400L,0x12002400L, +0x10200400L,0x12200400L,0x10202400L,0x12202400L, +0x10000404L,0x12000404L,0x10002404L,0x12002404L, +0x10200404L,0x12200404L,0x10202404L,0x12202404L, +},{ +/* for C bits (numbered as per FIPS 46) 14 15 16 17 19 20 */ +0x00000000L,0x00000001L,0x00040000L,0x00040001L, +0x01000000L,0x01000001L,0x01040000L,0x01040001L, +0x00000002L,0x00000003L,0x00040002L,0x00040003L, +0x01000002L,0x01000003L,0x01040002L,0x01040003L, +0x00000200L,0x00000201L,0x00040200L,0x00040201L, +0x01000200L,0x01000201L,0x01040200L,0x01040201L, +0x00000202L,0x00000203L,0x00040202L,0x00040203L, +0x01000202L,0x01000203L,0x01040202L,0x01040203L, +0x08000000L,0x08000001L,0x08040000L,0x08040001L, +0x09000000L,0x09000001L,0x09040000L,0x09040001L, +0x08000002L,0x08000003L,0x08040002L,0x08040003L, +0x09000002L,0x09000003L,0x09040002L,0x09040003L, +0x08000200L,0x08000201L,0x08040200L,0x08040201L, +0x09000200L,0x09000201L,0x09040200L,0x09040201L, +0x08000202L,0x08000203L,0x08040202L,0x08040203L, +0x09000202L,0x09000203L,0x09040202L,0x09040203L, +},{ +/* for C bits (numbered as per FIPS 46) 21 23 24 26 27 28 */ +0x00000000L,0x00100000L,0x00000100L,0x00100100L, +0x00000008L,0x00100008L,0x00000108L,0x00100108L, +0x00001000L,0x00101000L,0x00001100L,0x00101100L, +0x00001008L,0x00101008L,0x00001108L,0x00101108L, +0x04000000L,0x04100000L,0x04000100L,0x04100100L, +0x04000008L,0x04100008L,0x04000108L,0x04100108L, +0x04001000L,0x04101000L,0x04001100L,0x04101100L, +0x04001008L,0x04101008L,0x04001108L,0x04101108L, +0x00020000L,0x00120000L,0x00020100L,0x00120100L, +0x00020008L,0x00120008L,0x00020108L,0x00120108L, +0x00021000L,0x00121000L,0x00021100L,0x00121100L, +0x00021008L,0x00121008L,0x00021108L,0x00121108L, +0x04020000L,0x04120000L,0x04020100L,0x04120100L, +0x04020008L,0x04120008L,0x04020108L,0x04120108L, +0x04021000L,0x04121000L,0x04021100L,0x04121100L, +0x04021008L,0x04121008L,0x04021108L,0x04121108L, +},{ +/* for D bits (numbered as per FIPS 46) 1 2 3 4 5 6 */ +0x00000000L,0x10000000L,0x00010000L,0x10010000L, +0x00000004L,0x10000004L,0x00010004L,0x10010004L, +0x20000000L,0x30000000L,0x20010000L,0x30010000L, +0x20000004L,0x30000004L,0x20010004L,0x30010004L, +0x00100000L,0x10100000L,0x00110000L,0x10110000L, +0x00100004L,0x10100004L,0x00110004L,0x10110004L, +0x20100000L,0x30100000L,0x20110000L,0x30110000L, +0x20100004L,0x30100004L,0x20110004L,0x30110004L, +0x00001000L,0x10001000L,0x00011000L,0x10011000L, +0x00001004L,0x10001004L,0x00011004L,0x10011004L, +0x20001000L,0x30001000L,0x20011000L,0x30011000L, +0x20001004L,0x30001004L,0x20011004L,0x30011004L, +0x00101000L,0x10101000L,0x00111000L,0x10111000L, +0x00101004L,0x10101004L,0x00111004L,0x10111004L, +0x20101000L,0x30101000L,0x20111000L,0x30111000L, +0x20101004L,0x30101004L,0x20111004L,0x30111004L, +},{ +/* for D bits (numbered as per FIPS 46) 8 9 11 12 13 14 */ +0x00000000L,0x08000000L,0x00000008L,0x08000008L, +0x00000400L,0x08000400L,0x00000408L,0x08000408L, +0x00020000L,0x08020000L,0x00020008L,0x08020008L, +0x00020400L,0x08020400L,0x00020408L,0x08020408L, +0x00000001L,0x08000001L,0x00000009L,0x08000009L, +0x00000401L,0x08000401L,0x00000409L,0x08000409L, +0x00020001L,0x08020001L,0x00020009L,0x08020009L, +0x00020401L,0x08020401L,0x00020409L,0x08020409L, +0x02000000L,0x0A000000L,0x02000008L,0x0A000008L, +0x02000400L,0x0A000400L,0x02000408L,0x0A000408L, +0x02020000L,0x0A020000L,0x02020008L,0x0A020008L, +0x02020400L,0x0A020400L,0x02020408L,0x0A020408L, +0x02000001L,0x0A000001L,0x02000009L,0x0A000009L, +0x02000401L,0x0A000401L,0x02000409L,0x0A000409L, +0x02020001L,0x0A020001L,0x02020009L,0x0A020009L, +0x02020401L,0x0A020401L,0x02020409L,0x0A020409L, +},{ +/* for D bits (numbered as per FIPS 46) 16 17 18 19 20 21 */ +0x00000000L,0x00000100L,0x00080000L,0x00080100L, +0x01000000L,0x01000100L,0x01080000L,0x01080100L, +0x00000010L,0x00000110L,0x00080010L,0x00080110L, +0x01000010L,0x01000110L,0x01080010L,0x01080110L, +0x00200000L,0x00200100L,0x00280000L,0x00280100L, +0x01200000L,0x01200100L,0x01280000L,0x01280100L, +0x00200010L,0x00200110L,0x00280010L,0x00280110L, +0x01200010L,0x01200110L,0x01280010L,0x01280110L, +0x00000200L,0x00000300L,0x00080200L,0x00080300L, +0x01000200L,0x01000300L,0x01080200L,0x01080300L, +0x00000210L,0x00000310L,0x00080210L,0x00080310L, +0x01000210L,0x01000310L,0x01080210L,0x01080310L, +0x00200200L,0x00200300L,0x00280200L,0x00280300L, +0x01200200L,0x01200300L,0x01280200L,0x01280300L, +0x00200210L,0x00200310L,0x00280210L,0x00280310L, +0x01200210L,0x01200310L,0x01280210L,0x01280310L, +},{ +/* for D bits (numbered as per FIPS 46) 22 23 24 25 27 28 */ +0x00000000L,0x04000000L,0x00040000L,0x04040000L, +0x00000002L,0x04000002L,0x00040002L,0x04040002L, +0x00002000L,0x04002000L,0x00042000L,0x04042000L, +0x00002002L,0x04002002L,0x00042002L,0x04042002L, +0x00000020L,0x04000020L,0x00040020L,0x04040020L, +0x00000022L,0x04000022L,0x00040022L,0x04040022L, +0x00002020L,0x04002020L,0x00042020L,0x04042020L, +0x00002022L,0x04002022L,0x00042022L,0x04042022L, +0x00000800L,0x04000800L,0x00040800L,0x04040800L, +0x00000802L,0x04000802L,0x00040802L,0x04040802L, +0x00002800L,0x04002800L,0x00042800L,0x04042800L, +0x00002802L,0x04002802L,0x00042802L,0x04042802L, +0x00000820L,0x04000820L,0x00040820L,0x04040820L, +0x00000822L,0x04000822L,0x00040822L,0x04040822L, +0x00002820L,0x04002820L,0x00042820L,0x04042820L, +0x00002822L,0x04002822L,0x00042822L,0x04042822L, +}}; --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/des/spr.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,204 @@ +/* crypto/des/spr.h */ +/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +const DES_LONG des_SPtrans[8][64]={ +{ +/* nibble 0 */ +0x02080800L, 0x00080000L, 0x02000002L, 0x02080802L, +0x02000000L, 0x00080802L, 0x00080002L, 0x02000002L, +0x00080802L, 0x02080800L, 0x02080000L, 0x00000802L, +0x02000802L, 0x02000000L, 0x00000000L, 0x00080002L, +0x00080000L, 0x00000002L, 0x02000800L, 0x00080800L, +0x02080802L, 0x02080000L, 0x00000802L, 0x02000800L, +0x00000002L, 0x00000800L, 0x00080800L, 0x02080002L, +0x00000800L, 0x02000802L, 0x02080002L, 0x00000000L, +0x00000000L, 0x02080802L, 0x02000800L, 0x00080002L, +0x02080800L, 0x00080000L, 0x00000802L, 0x02000800L, +0x02080002L, 0x00000800L, 0x00080800L, 0x02000002L, +0x00080802L, 0x00000002L, 0x02000002L, 0x02080000L, +0x02080802L, 0x00080800L, 0x02080000L, 0x02000802L, +0x02000000L, 0x00000802L, 0x00080002L, 0x00000000L, +0x00080000L, 0x02000000L, 0x02000802L, 0x02080800L, +0x00000002L, 0x02080002L, 0x00000800L, 0x00080802L, +},{ +/* nibble 1 */ +0x40108010L, 0x00000000L, 0x00108000L, 0x40100000L, +0x40000010L, 0x00008010L, 0x40008000L, 0x00108000L, +0x00008000L, 0x40100010L, 0x00000010L, 0x40008000L, +0x00100010L, 0x40108000L, 0x40100000L, 0x00000010L, +0x00100000L, 0x40008010L, 0x40100010L, 0x00008000L, +0x00108010L, 0x40000000L, 0x00000000L, 0x00100010L, +0x40008010L, 0x00108010L, 0x40108000L, 0x40000010L, +0x40000000L, 0x00100000L, 0x00008010L, 0x40108010L, +0x00100010L, 0x40108000L, 0x40008000L, 0x00108010L, +0x40108010L, 0x00100010L, 0x40000010L, 0x00000000L, +0x40000000L, 0x00008010L, 0x00100000L, 0x40100010L, +0x00008000L, 0x40000000L, 0x00108010L, 0x40008010L, +0x40108000L, 0x00008000L, 0x00000000L, 0x40000010L, +0x00000010L, 0x40108010L, 0x00108000L, 0x40100000L, +0x40100010L, 0x00100000L, 0x00008010L, 0x40008000L, +0x40008010L, 0x00000010L, 0x40100000L, 0x00108000L, +},{ +/* nibble 2 */ +0x04000001L, 0x04040100L, 0x00000100L, 0x04000101L, +0x00040001L, 0x04000000L, 0x04000101L, 0x00040100L, +0x04000100L, 0x00040000L, 0x04040000L, 0x00000001L, +0x04040101L, 0x00000101L, 0x00000001L, 0x04040001L, +0x00000000L, 0x00040001L, 0x04040100L, 0x00000100L, +0x00000101L, 0x04040101L, 0x00040000L, 0x04000001L, +0x04040001L, 0x04000100L, 0x00040101L, 0x04040000L, +0x00040100L, 0x00000000L, 0x04000000L, 0x00040101L, +0x04040100L, 0x00000100L, 0x00000001L, 0x00040000L, +0x00000101L, 0x00040001L, 0x04040000L, 0x04000101L, +0x00000000L, 0x04040100L, 0x00040100L, 0x04040001L, +0x00040001L, 0x04000000L, 0x04040101L, 0x00000001L, +0x00040101L, 0x04000001L, 0x04000000L, 0x04040101L, +0x00040000L, 0x04000100L, 0x04000101L, 0x00040100L, +0x04000100L, 0x00000000L, 0x04040001L, 0x00000101L, +0x04000001L, 0x00040101L, 0x00000100L, 0x04040000L, +},{ +/* nibble 3 */ +0x00401008L, 0x10001000L, 0x00000008L, 0x10401008L, +0x00000000L, 0x10400000L, 0x10001008L, 0x00400008L, +0x10401000L, 0x10000008L, 0x10000000L, 0x00001008L, +0x10000008L, 0x00401008L, 0x00400000L, 0x10000000L, +0x10400008L, 0x00401000L, 0x00001000L, 0x00000008L, +0x00401000L, 0x10001008L, 0x10400000L, 0x00001000L, +0x00001008L, 0x00000000L, 0x00400008L, 0x10401000L, +0x10001000L, 0x10400008L, 0x10401008L, 0x00400000L, +0x10400008L, 0x00001008L, 0x00400000L, 0x10000008L, +0x00401000L, 0x10001000L, 0x00000008L, 0x10400000L, +0x10001008L, 0x00000000L, 0x00001000L, 0x00400008L, +0x00000000L, 0x10400008L, 0x10401000L, 0x00001000L, +0x10000000L, 0x10401008L, 0x00401008L, 0x00400000L, +0x10401008L, 0x00000008L, 0x10001000L, 0x00401008L, +0x00400008L, 0x00401000L, 0x10400000L, 0x10001008L, +0x00001008L, 0x10000000L, 0x10000008L, 0x10401000L, +},{ +/* nibble 4 */ +0x08000000L, 0x00010000L, 0x00000400L, 0x08010420L, +0x08010020L, 0x08000400L, 0x00010420L, 0x08010000L, +0x00010000L, 0x00000020L, 0x08000020L, 0x00010400L, +0x08000420L, 0x08010020L, 0x08010400L, 0x00000000L, +0x00010400L, 0x08000000L, 0x00010020L, 0x00000420L, +0x08000400L, 0x00010420L, 0x00000000L, 0x08000020L, +0x00000020L, 0x08000420L, 0x08010420L, 0x00010020L, +0x08010000L, 0x00000400L, 0x00000420L, 0x08010400L, +0x08010400L, 0x08000420L, 0x00010020L, 0x08010000L, +0x00010000L, 0x00000020L, 0x08000020L, 0x08000400L, +0x08000000L, 0x00010400L, 0x08010420L, 0x00000000L, +0x00010420L, 0x08000000L, 0x00000400L, 0x00010020L, +0x08000420L, 0x00000400L, 0x00000000L, 0x08010420L, +0x08010020L, 0x08010400L, 0x00000420L, 0x00010000L, +0x00010400L, 0x08010020L, 0x08000400L, 0x00000420L, +0x00000020L, 0x00010420L, 0x08010000L, 0x08000020L, +},{ +/* nibble 5 */ +0x80000040L, 0x00200040L, 0x00000000L, 0x80202000L, +0x00200040L, 0x00002000L, 0x80002040L, 0x00200000L, +0x00002040L, 0x80202040L, 0x00202000L, 0x80000000L, +0x80002000L, 0x80000040L, 0x80200000L, 0x00202040L, +0x00200000L, 0x80002040L, 0x80200040L, 0x00000000L, +0x00002000L, 0x00000040L, 0x80202000L, 0x80200040L, +0x80202040L, 0x80200000L, 0x80000000L, 0x00002040L, +0x00000040L, 0x00202000L, 0x00202040L, 0x80002000L, +0x00002040L, 0x80000000L, 0x80002000L, 0x00202040L, +0x80202000L, 0x00200040L, 0x00000000L, 0x80002000L, +0x80000000L, 0x00002000L, 0x80200040L, 0x00200000L, +0x00200040L, 0x80202040L, 0x00202000L, 0x00000040L, +0x80202040L, 0x00202000L, 0x00200000L, 0x80002040L, +0x80000040L, 0x80200000L, 0x00202040L, 0x00000000L, +0x00002000L, 0x80000040L, 0x80002040L, 0x80202000L, +0x80200000L, 0x00002040L, 0x00000040L, 0x80200040L, +},{ +/* nibble 6 */ +0x00004000L, 0x00000200L, 0x01000200L, 0x01000004L, +0x01004204L, 0x00004004L, 0x00004200L, 0x00000000L, +0x01000000L, 0x01000204L, 0x00000204L, 0x01004000L, +0x00000004L, 0x01004200L, 0x01004000L, 0x00000204L, +0x01000204L, 0x00004000L, 0x00004004L, 0x01004204L, +0x00000000L, 0x01000200L, 0x01000004L, 0x00004200L, +0x01004004L, 0x00004204L, 0x01004200L, 0x00000004L, +0x00004204L, 0x01004004L, 0x00000200L, 0x01000000L, +0x00004204L, 0x01004000L, 0x01004004L, 0x00000204L, +0x00004000L, 0x00000200L, 0x01000000L, 0x01004004L, +0x01000204L, 0x00004204L, 0x00004200L, 0x00000000L, +0x00000200L, 0x01000004L, 0x00000004L, 0x01000200L, +0x00000000L, 0x01000204L, 0x01000200L, 0x00004200L, +0x00000204L, 0x00004000L, 0x01004204L, 0x01000000L, +0x01004200L, 0x00000004L, 0x00004004L, 0x01004204L, +0x01000004L, 0x01004200L, 0x01004000L, 0x00004004L, +},{ +/* nibble 7 */ +0x20800080L, 0x20820000L, 0x00020080L, 0x00000000L, +0x20020000L, 0x00800080L, 0x20800000L, 0x20820080L, +0x00000080L, 0x20000000L, 0x00820000L, 0x00020080L, +0x00820080L, 0x20020080L, 0x20000080L, 0x20800000L, +0x00020000L, 0x00820080L, 0x00800080L, 0x20020000L, +0x20820080L, 0x20000080L, 0x00000000L, 0x00820000L, +0x20000000L, 0x00800000L, 0x20020080L, 0x20800080L, +0x00800000L, 0x00020000L, 0x20820000L, 0x00000080L, +0x00800000L, 0x00020000L, 0x20000080L, 0x20820080L, +0x00020080L, 0x20000000L, 0x00000000L, 0x00820000L, +0x20800080L, 0x20020080L, 0x20020000L, 0x00800080L, +0x20820000L, 0x00000080L, 0x00800080L, 0x20020000L, +0x20820080L, 0x00800000L, 0x20800000L, 0x20000080L, +0x00820000L, 0x00020080L, 0x20020080L, 0x20800000L, +0x00000080L, 0x20820000L, 0x00820080L, 0x00000000L, +0x20000000L, 0x20800080L, 0x00020000L, 0x00820080L, +}}; --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/mast.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,33 @@ +struct mast_callbacks { + int (*packet_encap)(struct device *mast, void *context, + struct sk_buff *skb, int flowref); + int (*link_inquire)(struct device *mast, void *context); +}; + + +struct device *mast_init (int family, + struct mast_callbacks *callbacks, + unsigned int flags, + unsigned int desired_unit, + unsigned int max_flowref, + void *context); + +int mast_destroy(struct device *mast); + +int mast_recv(struct device *mast, struct sk_buff *skb, int flowref); + +/* free this skb as being useless, increment failure count. */ +int mast_toast(struct device *mast, struct sk_buff *skb, int flowref); + +int mast_linkstat (struct device *mast, int flowref, + int status); + +int mast_setreference (struct device *mast, + int defaultSA); + +int mast_setneighbor (struct device *mast, + struct sockaddr *source, + struct sockaddr *destination, + int flowref); + + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,518 @@ +#ifndef _OPENSWAN_H +/* + * header file for FreeS/WAN library functions + * Copyright (C) 1998, 1999, 2000 Henry Spencer. + * Copyright (C) 1999, 2000, 2001 Richard Guy Briggs + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + * License for more details. + * + * RCSID $Id: openswan.h,v 1.93 2005/04/14 20:21:51 mcr Exp $ + */ +#define _OPENSWAN_H /* seen it, no need to see it again */ + +/* you'd think this should be builtin to compiler... */ +#ifndef TRUE +#define TRUE 1 +#endif + +#ifndef FALSE +#define FALSE 0 +#endif + + + +/* + * We've just got to have some datatypes defined... And annoyingly, just + * where we get them depends on whether we're in userland or not. + */ +/* things that need to come from one place or the other, depending */ +#ifdef __KERNEL__ +#include +#include +#include +#include +#include +#define user_assert(foo) /*nothing*/ +#else +#include +#include +#include +#include +#include +#define user_assert(foo) assert(foo) +#include + +# define uint8_t u_int8_t +# define uint16_t u_int16_t +# define uint32_t u_int32_t +# define uint64_t u_int64_t + + +# define DEBUG_NO_STATIC static + +#endif + +#include + + +/* + * Grab the kernel version to see if we have NET_21, and therefore + * IPv6. Some of this is repeated from ipsec_kversions.h. Of course, + * we aren't really testing if the kernel has IPv6, but rather if the + * the include files do. + */ +#include +#ifndef KERNEL_VERSION +#define KERNEL_VERSION(x,y,z) (((x)<<16)+((y)<<8)+(z)) +#endif + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,0) +#define NET_21 +#endif + +#ifndef IPPROTO_COMP +# define IPPROTO_COMP 108 +#endif /* !IPPROTO_COMP */ + +#ifndef IPPROTO_INT +# define IPPROTO_INT 61 +#endif /* !IPPROTO_INT */ + +#ifdef CONFIG_KLIPS_DEBUG +#ifndef DEBUG_NO_STATIC +# define DEBUG_NO_STATIC +#endif +#else /* CONFIG_KLIPS_DEBUG */ +#ifndef DEBUG_NO_STATIC +# define DEBUG_NO_STATIC static +#endif +#endif /* CONFIG_KLIPS_DEBUG */ + +#if !defined(ESPINUDP_WITH_NON_IKE) +#define ESPINUDP_WITH_NON_IKE 1 /* draft-ietf-ipsec-nat-t-ike-00/01 */ +#define ESPINUDP_WITH_NON_ESP 2 /* draft-ietf-ipsec-nat-t-ike-02 */ +#endif + +/* + * Basic data types for the address-handling functions. + * ip_address and ip_subnet are supposed to be opaque types; do not + * use their definitions directly, they are subject to change! + */ + +/* first, some quick fakes in case we're on an old system with no IPv6 */ +#ifndef s6_addr16 +struct in6_addr { + union + { + __u8 u6_addr8[16]; + __u16 u6_addr16[8]; + __u32 u6_addr32[4]; + } in6_u; +#define s6_addr in6_u.u6_addr8 +#define s6_addr16 in6_u.u6_addr16 +#define s6_addr32 in6_u.u6_addr32 +}; +struct sockaddr_in6 { + unsigned short int sin6_family; /* AF_INET6 */ + __u16 sin6_port; /* Transport layer port # */ + __u32 sin6_flowinfo; /* IPv6 flow information */ + struct in6_addr sin6_addr; /* IPv6 address */ + __u32 sin6_scope_id; /* scope id (new in RFC2553) */ +}; +#endif /* !s6_addr16 */ + +/* then the main types */ +typedef struct { + union { + struct sockaddr_in v4; + struct sockaddr_in6 v6; + } u; +} ip_address; +typedef struct { + ip_address addr; + int maskbits; +} ip_subnet; + +/* and the SA ID stuff */ +#ifdef __KERNEL__ +typedef __u32 ipsec_spi_t; +#else +typedef u_int32_t ipsec_spi_t; +#endif +typedef struct { /* to identify an SA, we need: */ + ip_address dst; /* A. destination host */ + ipsec_spi_t spi; /* B. 32-bit SPI, assigned by dest. host */ +# define SPI_PASS 256 /* magic values... */ +# define SPI_DROP 257 /* ...for use... */ +# define SPI_REJECT 258 /* ...with SA_INT */ +# define SPI_HOLD 259 +# define SPI_TRAP 260 +# define SPI_TRAPSUBNET 261 + int proto; /* C. protocol */ +# define SA_ESP 50 /* IPPROTO_ESP */ +# define SA_AH 51 /* IPPROTO_AH */ +# define SA_IPIP 4 /* IPPROTO_IPIP */ +# define SA_COMP 108 /* IPPROTO_COMP */ +# define SA_INT 61 /* IANA reserved for internal use */ +} ip_said; + +/* misc */ +typedef const char *err_t; /* error message, or NULL for success */ +struct prng { /* pseudo-random-number-generator guts */ + unsigned char sbox[256]; + int i, j; + unsigned long count; +}; + + +/* + * definitions for user space, taken from freeswan/ipsec_sa.h + */ +typedef uint32_t IPsecSAref_t; + +#define IPSEC_SA_REF_FIELD_WIDTH (8 * sizeof(IPsecSAref_t)) + +#define IPsecSAref2NFmark(x) ((x) << (IPSEC_SA_REF_FIELD_WIDTH - IPSEC_SA_REF_TABLE_IDX_WIDTH)) +#define NFmark2IPsecSAref(x) ((x) >> (IPSEC_SA_REF_FIELD_WIDTH - IPSEC_SA_REF_TABLE_IDX_WIDTH)) + +#define IPSEC_SAREF_NULL (~((IPsecSAref_t)0)) + +/* GCC magic for use in function definitions! */ +#ifdef GCC_LINT +# define PRINTF_LIKE(n) __attribute__ ((format(printf, n, n+1))) +# define NEVER_RETURNS __attribute__ ((noreturn)) +# define UNUSED __attribute__ ((unused)) +# define BLANK_FORMAT " " /* GCC_LINT whines about empty formats */ +#else +# define PRINTF_LIKE(n) /* ignore */ +# define NEVER_RETURNS /* ignore */ +# define UNUSED /* ignore */ +# define BLANK_FORMAT "" +#endif + + + + + +/* + * new IPv6-compatible functions + */ + +/* text conversions */ +err_t ttoul(const char *src, size_t srclen, int format, unsigned long *dst); +size_t ultot(unsigned long src, int format, char *buf, size_t buflen); +#define ULTOT_BUF (22+1) /* holds 64 bits in octal */ +err_t ttoaddr(const char *src, size_t srclen, int af, ip_address *dst); +err_t tnatoaddr(const char *src, size_t srclen, int af, ip_address *dst); +size_t addrtot(const ip_address *src, int format, char *buf, size_t buflen); +/* RFC 1886 old IPv6 reverse-lookup format is the bulkiest */ +#define ADDRTOT_BUF (32*2 + 3 + 1 + 3 + 1 + 1) +err_t ttosubnet(const char *src, size_t srclen, int af, ip_subnet *dst); +size_t subnettot(const ip_subnet *src, int format, char *buf, size_t buflen); +#define SUBNETTOT_BUF (ADDRTOT_BUF + 1 + 3) +size_t subnetporttot(const ip_subnet *src, int format, char *buf, size_t buflen); +#define SUBNETPROTOTOT_BUF (SUBNETTOTO_BUF + ULTOT_BUF) +err_t ttosa(const char *src, size_t srclen, ip_said *dst); +size_t satot(const ip_said *src, int format, char *bufptr, size_t buflen); +#define SATOT_BUF (5 + ULTOA_BUF + 1 + ADDRTOT_BUF) +err_t ttodata(const char *src, size_t srclen, int base, char *buf, + size_t buflen, size_t *needed); +err_t ttodatav(const char *src, size_t srclen, int base, + char *buf, size_t buflen, size_t *needed, + char *errp, size_t errlen, unsigned int flags); +#define TTODATAV_BUF 40 /* ttodatav's largest non-literal message */ +#define TTODATAV_IGNORESPACE (1<<1) /* ignore spaces in base64 encodings*/ +#define TTODATAV_SPACECOUNTS 0 /* do not ignore spaces in base64 */ + +size_t datatot(const char *src, size_t srclen, int format, char *buf, + size_t buflen); +size_t keyblobtoid(const unsigned char *src, size_t srclen, char *dst, + size_t dstlen); +size_t splitkeytoid(const unsigned char *e, size_t elen, const unsigned char *m, + size_t mlen, char *dst, size_t dstlen); +#define KEYID_BUF 10 /* up to 9 text digits plus NUL */ +err_t ttoprotoport(char *src, size_t src_len, u_int8_t *proto, u_int16_t *port, + int *has_port_wildcard); + +/* initializations */ +void initsaid(const ip_address *addr, ipsec_spi_t spi, int proto, ip_said *dst); +err_t loopbackaddr(int af, ip_address *dst); +err_t unspecaddr(int af, ip_address *dst); +err_t anyaddr(int af, ip_address *dst); +err_t initaddr(const unsigned char *src, size_t srclen, int af, ip_address *dst); +err_t initsubnet(const ip_address *addr, int maskbits, int clash, ip_subnet *dst); +err_t addrtosubnet(const ip_address *addr, ip_subnet *dst); + +/* misc. conversions and related */ +err_t rangetosubnet(const ip_address *from, const ip_address *to, ip_subnet *dst); +int addrtypeof(const ip_address *src); +int subnettypeof(const ip_subnet *src); +size_t addrlenof(const ip_address *src); +size_t addrbytesptr(const ip_address *src, const unsigned char **dst); +size_t addrbytesof(const ip_address *src, unsigned char *dst, size_t dstlen); +int masktocount(const ip_address *src); +void networkof(const ip_subnet *src, ip_address *dst); +void maskof(const ip_subnet *src, ip_address *dst); + +/* tests */ +int sameaddr(const ip_address *a, const ip_address *b); +int addrcmp(const ip_address *a, const ip_address *b); +int samesubnet(const ip_subnet *a, const ip_subnet *b); +int addrinsubnet(const ip_address *a, const ip_subnet *s); +int subnetinsubnet(const ip_subnet *a, const ip_subnet *b); +int subnetishost(const ip_subnet *s); +int samesaid(const ip_said *a, const ip_said *b); +int sameaddrtype(const ip_address *a, const ip_address *b); +int samesubnettype(const ip_subnet *a, const ip_subnet *b); +int isanyaddr(const ip_address *src); +int isunspecaddr(const ip_address *src); +int isloopbackaddr(const ip_address *src); + +/* low-level grot */ +int portof(const ip_address *src); +void setportof(int port, ip_address *dst); +struct sockaddr *sockaddrof(ip_address *src); +size_t sockaddrlenof(const ip_address *src); + +/* PRNG */ +void prng_init(struct prng *prng, const unsigned char *key, size_t keylen); +void prng_bytes(struct prng *prng, unsigned char *dst, size_t dstlen); +unsigned long prng_count(struct prng *prng); +void prng_final(struct prng *prng); + +/* odds and ends */ +const char *ipsec_version_code(void); +const char *ipsec_version_string(void); +const char **ipsec_copyright_notice(void); + +const char *dns_string_rr(int rr, char *buf, int bufsize); +const char *dns_string_datetime(time_t seconds, + char *buf, + int bufsize); + + +/* + * old functions, to be deleted eventually + */ + +/* unsigned long */ +const char * /* NULL for success, else string literal */ +atoul( + const char *src, + size_t srclen, /* 0 means strlen(src) */ + int base, /* 0 means figure it out */ + unsigned long *resultp +); +size_t /* space needed for full conversion */ +ultoa( + unsigned long n, + int base, + char *dst, + size_t dstlen +); +#define ULTOA_BUF 21 /* just large enough for largest result, */ + /* assuming 64-bit unsigned long! */ + +/* Internet addresses */ +const char * /* NULL for success, else string literal */ +atoaddr( + const char *src, + size_t srclen, /* 0 means strlen(src) */ + struct in_addr *addr +); +size_t /* space needed for full conversion */ +addrtoa( + struct in_addr addr, + int format, /* character; 0 means default */ + char *dst, + size_t dstlen +); +#define ADDRTOA_BUF 16 /* just large enough for largest result */ + +/* subnets */ +const char * /* NULL for success, else string literal */ +atosubnet( + const char *src, + size_t srclen, /* 0 means strlen(src) */ + struct in_addr *addr, + struct in_addr *mask +); +size_t /* space needed for full conversion */ +subnettoa( + struct in_addr addr, + struct in_addr mask, + int format, /* character; 0 means default */ + char *dst, + size_t dstlen +); +#define SUBNETTOA_BUF 32 /* large enough for worst case result */ + +/* ranges */ +const char * /* NULL for success, else string literal */ +atoasr( + const char *src, + size_t srclen, /* 0 means strlen(src) */ + char *type, /* 'a', 's', 'r' */ + struct in_addr *addrs /* two-element array */ +); +size_t /* space needed for full conversion */ +rangetoa( + struct in_addr *addrs, /* two-element array */ + int format, /* character; 0 means default */ + char *dst, + size_t dstlen +); +#define RANGETOA_BUF 34 /* large enough for worst case result */ + +/* data types for SA conversion functions */ + +/* generic data, e.g. keys */ +const char * /* NULL for success, else string literal */ +atobytes( + const char *src, + size_t srclen, /* 0 means strlen(src) */ + char *dst, + size_t dstlen, + size_t *lenp /* NULL means don't bother telling me */ +); +size_t /* 0 failure, else true size */ +bytestoa( + const char *src, + size_t srclen, + int format, /* character; 0 means default */ + char *dst, + size_t dstlen +); + +/* old versions of generic-data functions; deprecated */ +size_t /* 0 failure, else true size */ +atodata( + const char *src, + size_t srclen, /* 0 means strlen(src) */ + char *dst, + size_t dstlen +); +size_t /* 0 failure, else true size */ +datatoa( + const char *src, + size_t srclen, + int format, /* character; 0 means default */ + char *dst, + size_t dstlen +); + +/* part extraction and special addresses */ +struct in_addr +subnetof( + struct in_addr addr, + struct in_addr mask +); +struct in_addr +hostof( + struct in_addr addr, + struct in_addr mask +); +struct in_addr +broadcastof( + struct in_addr addr, + struct in_addr mask +); + +/* mask handling */ +int +goodmask( + struct in_addr mask +); +int +masktobits( + struct in_addr mask +); +struct in_addr +bitstomask( + int n +); + + + +/* + * general utilities + */ + +#ifndef __KERNEL__ +/* option pickup from files (userland only because of use of FILE) */ +const char *optionsfrom(const char *filename, int *argcp, char ***argvp, + int optind, FILE *errorreport); + +/* sanitize a string */ +extern size_t sanitize_string(char *buf, size_t size); + +#endif + + +/* + * ENUM of klips debugging values. Not currently used in klips. + * debug flag is actually 32 -bits, but only one bit is ever used, + * so we can actually pack it all into a single 32-bit word. + */ +enum klips_debug_flags { + KDF_VERBOSE = 0, + KDF_XMIT = 1, + KDF_NETLINK = 2, /* obsolete */ + KDF_XFORM = 3, + KDF_EROUTE = 4, + KDF_SPI = 5, + KDF_RADIJ = 6, + KDF_ESP = 7, + KDF_AH = 8, /* obsolete */ + KDF_RCV = 9, + KDF_TUNNEL = 10, + KDF_PFKEY = 11, + KDF_COMP = 12 +}; + + +/* + * Debugging levels for pfkey_lib_debug + */ +#define PF_KEY_DEBUG_PARSE_NONE 0 +#define PF_KEY_DEBUG_PARSE_PROBLEM 1 +#define PF_KEY_DEBUG_PARSE_STRUCT 2 +#define PF_KEY_DEBUG_PARSE_FLOW 4 +#define PF_KEY_DEBUG_BUILD 8 +#define PF_KEY_DEBUG_PARSE_MAX 15 + +extern unsigned int pfkey_lib_debug; /* bits selecting what to report */ + +/* + * pluto and lwdnsq need to know the maximum size of the commands to, + * and replies from lwdnsq. + */ + +#define LWDNSQ_CMDBUF_LEN 1024 +#define LWDNSQ_RESULT_LEN_MAX 4096 + + +/* syntax for passthrough SA */ +#ifndef PASSTHROUGHNAME +#define PASSTHROUGHNAME "%passthrough" +#define PASSTHROUGH4NAME "%passthrough4" +#define PASSTHROUGH6NAME "%passthrough6" +#define PASSTHROUGHIS "tun0@0.0.0.0" +#define PASSTHROUGH4IS "tun0@0.0.0.0" +#define PASSTHROUGH6IS "tun0@::" +#define PASSTHROUGHTYPE "tun" +#define PASSTHROUGHSPI 0 +#define PASSTHROUGHDST 0 +#endif + + + +#endif /* _OPENSWAN_H */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipcomp.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,61 @@ +/* + * IPCOMP zlib interface code. + * Copyright (C) 2000 Svenning Soerensen + * Copyright (C) 2000, 2001 Richard Guy Briggs + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + + RCSID $Id: ipcomp.h,v 1.14 2004/07/10 19:08:41 mcr Exp $ + + */ + +/* SSS */ + +#ifndef _IPCOMP_H +#define _IPCOMP_H + +/* Prefix all global deflate symbols with "ipcomp_" to avoid collisions with ppp_deflate & ext2comp */ +#ifndef IPCOMP_PREFIX +#define IPCOMP_PREFIX +#endif /* IPCOMP_PREFIX */ + +#ifndef IPPROTO_COMP +#define IPPROTO_COMP 108 +#endif /* IPPROTO_COMP */ + +#ifdef CONFIG_KLIPS_DEBUG +extern int sysctl_ipsec_debug_ipcomp; +#endif /* CONFIG_KLIPS_DEBUG */ + +struct ipcomphdr { /* IPCOMP header */ + __u8 ipcomp_nh; /* Next header (protocol) */ + __u8 ipcomp_flags; /* Reserved, must be 0 */ + __u16 ipcomp_cpi; /* Compression Parameter Index */ +}; + +extern struct inet_protocol comp_protocol; +extern int sysctl_ipsec_debug_ipcomp; + +#define IPCOMP_UNCOMPRESSABLE 0x000000001 +#define IPCOMP_COMPRESSIONERROR 0x000000002 +#define IPCOMP_PARMERROR 0x000000004 +#define IPCOMP_DECOMPRESSIONERROR 0x000000008 + +#define IPCOMP_ADAPT_INITIAL_TRIES 8 +#define IPCOMP_ADAPT_INITIAL_SKIP 4 +#define IPCOMP_ADAPT_SUBSEQ_TRIES 2 +#define IPCOMP_ADAPT_SUBSEQ_SKIP 8 + +/* Function prototypes */ +struct sk_buff *skb_compress(struct sk_buff *skb, struct ipsec_sa *ips, unsigned int *flags); +struct sk_buff *skb_decompress(struct sk_buff *skb, struct ipsec_sa *ips, unsigned int *flags); + +#endif /* _IPCOMP_H */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_ah.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,200 @@ +/* + * Authentication Header declarations + * Copyright (C) 1996, 1997 John Ioannidis. + * Copyright (C) 1998, 1999, 2000, 2001 Richard Guy Briggs. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_ah.h,v 1.26 2004/09/13 02:22:10 mcr Exp $ + */ + +#include "ipsec_md5h.h" +#include "ipsec_sha1.h" + +#ifndef IPPROTO_AH +#define IPPROTO_AH 51 +#endif /* IPPROTO_AH */ + +#include "ipsec_auth.h" + +#ifdef __KERNEL__ + +extern struct inet_protocol ah_protocol; + +struct options; + +struct ahhdr /* Generic AH header */ +{ + __u8 ah_nh; /* Next header (protocol) */ + __u8 ah_hl; /* AH length, in 32-bit words */ + __u16 ah_rv; /* reserved, must be 0 */ + __u32 ah_spi; /* Security Parameters Index */ + __u32 ah_rpl; /* Replay prevention */ + __u8 ah_data[AHHMAC_HASHLEN];/* Authentication hash */ +}; +#define AH_BASIC_LEN 8 /* basic AH header is 8 bytes, nh,hl,rv,spi + * and the ah_hl, says how many bytes after that + * to cover. */ + +extern struct xform_functions ah_xform_funcs[]; + +#ifdef CONFIG_KLIPS_DEBUG +extern int debug_ah; +#endif /* CONFIG_KLIPS_DEBUG */ +#endif /* __KERNEL__ */ + +/* + * $Log: ipsec_ah.h,v $ + * Revision 1.26 2004/09/13 02:22:10 mcr + * #define inet_protocol if necessary. + * + * Revision 1.25 2004/09/06 18:35:41 mcr + * 2.6.8.1 gets rid of inet_protocol->net_protocol compatibility, + * so adjust for that. + * + * Revision 1.24 2004/07/10 19:08:41 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.23 2004/04/05 19:55:04 mcr + * Moved from linux/include/freeswan/ipsec_ah.h,v + * + * Revision 1.22 2004/04/05 19:41:05 mcr + * merged alg-branch code. + * + * Revision 1.21 2003/12/13 19:10:16 mcr + * refactored rcv and xmit code - same as FS 2.05. + * + * Revision 1.22 2003/12/11 20:14:58 mcr + * refactored the xmit code, to move all encapsulation + * code into protocol functions. Note that all functions + * are essentially done by a single function, which is probably + * wrong. + * the rcv_functions structures are renamed xform_functions. + * + * Revision 1.21 2003/12/06 21:21:19 mcr + * split up receive path into per-transform files, for + * easier later removal. + * + * Revision 1.20.8.1 2003/12/22 15:25:52 jjo + * Merged algo-0.8.1-rc11-test1 into alg-branch + * + * Revision 1.20 2003/02/06 02:21:34 rgb + * + * Moved "struct auth_alg" from ipsec_rcv.c to ipsec_ah.h . + * Changed "struct ah" to "struct ahhdr" and "struct esp" to "struct esphdr". + * Removed "#ifdef INBOUND_POLICY_CHECK_eroute" dead code. + * + * Revision 1.19 2002/09/16 21:19:13 mcr + * fixes for west-ah-icmp-01 - length of AH header must be + * calculated properly, and next_header field properly copied. + * + * Revision 1.18 2002/05/14 02:37:02 rgb + * Change reference from _TDB to _IPSA. + * + * Revision 1.17 2002/04/24 07:36:46 mcr + * Moved from ./klips/net/ipsec/ipsec_ah.h,v + * + * Revision 1.16 2002/02/20 01:27:06 rgb + * Ditched a pile of structs only used by the old Netlink interface. + * + * Revision 1.15 2001/12/11 02:35:57 rgb + * Change "struct net_device" to "struct device" for 2.2 compatibility. + * + * Revision 1.14 2001/11/26 09:23:47 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.13.2.1 2001/09/25 02:18:24 mcr + * replace "struct device" with "struct netdevice" + * + * Revision 1.13 2001/06/14 19:35:08 rgb + * Update copyright date. + * + * Revision 1.12 2000/09/12 03:21:20 rgb + * Cleared out unused htonq. + * + * Revision 1.11 2000/09/08 19:12:55 rgb + * Change references from DEBUG_IPSEC to CONFIG_IPSEC_DEBUG. + * + * Revision 1.10 2000/01/21 06:13:10 rgb + * Tidied up spacing. + * Added macros for HMAC padding magic numbers.(kravietz) + * + * Revision 1.9 1999/12/07 18:16:23 rgb + * Fixed comments at end of #endif lines. + * + * Revision 1.8 1999/04/11 00:28:56 henry + * GPL boilerplate + * + * Revision 1.7 1999/04/06 04:54:25 rgb + * Fix/Add RCSID Id: and Log: bits to make PHMDs happy. This includes + * patch shell fixes. + * + * Revision 1.6 1999/01/26 02:06:01 rgb + * Removed CONFIG_IPSEC_ALGO_SWITCH macro. + * + * Revision 1.5 1999/01/22 06:17:49 rgb + * Updated macro comments. + * Added context types to support algorithm switch code. + * 64-bit clean-up -- converting 'u long long' to __u64. + * + * Revision 1.4 1998/07/14 15:54:56 rgb + * Add #ifdef __KERNEL__ to protect kernel-only structures. + * + * Revision 1.3 1998/06/30 18:05:16 rgb + * Comment out references to htonq. + * + * Revision 1.2 1998/06/25 19:33:46 rgb + * Add prototype for protocol receive function. + * Rearrange for more logical layout. + * + * Revision 1.1 1998/06/18 21:27:43 henry + * move sources from klips/src to klips/net/ipsec, to keep stupid + * kernel-build scripts happier in the presence of symlinks + * + * Revision 1.4 1998/05/18 22:28:43 rgb + * Disable key printing facilities from /proc/net/ipsec_*. + * + * Revision 1.3 1998/04/21 21:29:07 rgb + * Rearrange debug switches to change on the fly debug output from user + * space. Only kernel changes checked in at this time. radij.c was also + * changed to temporarily remove buggy debugging code in rj_delete causing + * an OOPS and hence, netlink device open errors. + * + * Revision 1.2 1998/04/12 22:03:17 rgb + * Updated ESP-3DES-HMAC-MD5-96, + * ESP-DES-HMAC-MD5-96, + * AH-HMAC-MD5-96, + * AH-HMAC-SHA1-96 since Henry started freeswan cvs repository + * from old standards (RFC182[5-9] to new (as of March 1998) drafts. + * + * Fixed eroute references in /proc/net/ipsec*. + * + * Started to patch module unloading memory leaks in ipsec_netlink and + * radij tree unloading. + * + * Revision 1.1 1998/04/09 03:05:55 henry + * sources moved up from linux/net/ipsec + * + * Revision 1.1.1.1 1998/04/08 05:35:02 henry + * RGB's ipsec-0.8pre2.tar.gz ipsec-0.8 + * + * Revision 0.4 1997/01/15 01:28:15 ji + * Added definitions for new AH transforms. + * + * Revision 0.3 1996/11/20 14:35:48 ji + * Minor Cleanup. + * Rationalized debugging code. + * + * Revision 0.2 1996/11/02 00:18:33 ji + * First limited release. + * + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_alg.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,248 @@ +/* + * Modular extensions service and registration functions interface + * + * Author: JuanJo Ciarlante + * + * ipsec_alg.h,v 1.1.2.1 2003/11/21 18:12:23 jjo Exp + * + */ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + */ +#ifndef IPSEC_ALG_H +#define IPSEC_ALG_H + +/* + * gcc >= 3.2 has removed __FUNCTION__, replaced by C99 __func__ + * *BUT* its a compiler variable. + */ +#if (__GNUC__ >= 3) +#ifndef __FUNCTION__ +#define __FUNCTION__ __func__ +#endif +#endif + +/* Version 0.8.1-0 */ +#define IPSEC_ALG_VERSION 0x00080100 + +#include +#include +#include +#include + +/* + * The following structs are used via pointers in ipsec_alg object to + * avoid ipsec_alg.h coupling with freeswan headers, thus simplifying + * module development + */ +struct ipsec_sa; +struct esp; + +/************************************** + * + * Main registration object + * + *************************************/ +#define IPSEC_ALG_VERSION_QUAD(v) \ + (v>>24),((v>>16)&0xff),((v>>8)&0xff),(v&0xff) +/* + * Main ipsec_alg objects: "OOPrograming wannabe" + * Hierachy (carefully handled with _minimal_ cast'ing): + * + * ipsec_alg+ + * +->ipsec_alg_enc (ixt_alg_type=SADB_EXT_SUPPORTED_ENCRYPT) + * +->ipsec_alg_auth (ixt_alg_type=SADB_EXT_SUPPORTED_AUTH) + */ + +/*************************************************************** + * + * INTERFACE object: struct ipsec_alg + * + ***************************************************************/ + +#define ixt_alg_type ixt_support.ias_exttype +#define ixt_alg_id ixt_support.ias_id + +#define IPSEC_ALG_ST_SUPP 0x01 +#define IPSEC_ALG_ST_REGISTERED 0x02 +#define IPSEC_ALG_ST_EXCL 0x04 +struct ipsec_alg { + unsigned ixt_version; /* only allow this version (or 'near')*/ \ + struct list_head ixt_list; /* dlinked list */ \ + struct module *ixt_module; /* THIS_MODULE */ \ + unsigned ixt_state; /* state flags */ \ + atomic_t ixt_refcnt; /* ref. count when pointed from ipsec_sa */ \ + char ixt_name[16]; /* descriptive short name, eg. "3des" */ \ + void *ixt_data; /* private for algo implementation */ \ + uint8_t ixt_blocksize; /* blocksize in bytes */ \ + + struct ipsec_alg_supported ixt_support; +}; +/* + * Note the const in cbc_encrypt IV arg: + * some ciphers like to toast passed IV (eg. 3DES): make a local IV copy + */ +struct ipsec_alg_enc { + struct ipsec_alg ixt_common; + unsigned ixt_e_keylen; /* raw key length in bytes */ + unsigned ixt_e_ctx_size; /* sa_p->key_e_size */ + int (*ixt_e_set_key)(struct ipsec_alg_enc *alg, __u8 *key_e, const __u8 *key, size_t keysize); + __u8 *(*ixt_e_new_key)(struct ipsec_alg_enc *alg, const __u8 *key, size_t keysize); + void (*ixt_e_destroy_key)(struct ipsec_alg_enc *alg, __u8 *key_e); + int (*ixt_e_cbc_encrypt)(struct ipsec_alg_enc *alg, __u8 *key_e, __u8 *in, int ilen, const __u8 *iv, int encrypt); +}; +struct ipsec_alg_auth { + struct ipsec_alg ixt_common; + unsigned ixt_a_keylen; /* raw key length in bytes */ + unsigned ixt_a_ctx_size; /* sa_p->key_a_size */ + unsigned ixt_a_authlen; /* 'natural' auth. hash len (bytes) */ + int (*ixt_a_hmac_set_key)(struct ipsec_alg_auth *alg, __u8 *key_a, const __u8 *key, int keylen); + int (*ixt_a_hmac_hash)(struct ipsec_alg_auth *alg, __u8 *key_a, const __u8 *dat, int len, __u8 *hash, int hashlen); +}; +/* + * These are _copies_ of SADB_EXT_SUPPORTED_{AUTH,ENCRYPT}, + * to avoid header coupling for true constants + * about headers ... "cp is your friend" --Linus + */ +#define IPSEC_ALG_TYPE_AUTH 14 +#define IPSEC_ALG_TYPE_ENCRYPT 15 + +/*************************************************************** + * + * INTERFACE for module loading,testing, and unloading + * + ***************************************************************/ +/* - registration calls */ +int register_ipsec_alg(struct ipsec_alg *); +int unregister_ipsec_alg(struct ipsec_alg *); +/* - optional (simple test) for algos */ +int ipsec_alg_test(unsigned alg_type, unsigned alg_id, int testparm); +/* inline wrappers (usefull for type validation */ +static inline int register_ipsec_alg_enc(struct ipsec_alg_enc *ixt) { + return register_ipsec_alg((struct ipsec_alg*)ixt); +} +static inline int unregister_ipsec_alg_enc(struct ipsec_alg_enc *ixt) { + return unregister_ipsec_alg((struct ipsec_alg*)ixt); +} +static inline int register_ipsec_alg_auth(struct ipsec_alg_auth *ixt) { + return register_ipsec_alg((struct ipsec_alg*)ixt); +} +static inline int unregister_ipsec_alg_auth(struct ipsec_alg_auth *ixt) { + return unregister_ipsec_alg((struct ipsec_alg*)ixt); +} + +/***************************************************************** + * + * INTERFACE for ENC services: key creation, encrypt function + * + *****************************************************************/ + +#define IPSEC_ALG_ENCRYPT 1 +#define IPSEC_ALG_DECRYPT 0 + +/* encryption key context creation function */ +int ipsec_alg_enc_key_create(struct ipsec_sa *sa_p); +/* + * ipsec_alg_esp_encrypt(): encrypt ilen bytes in idat returns + * 0 or ERR<0 + */ +int ipsec_alg_esp_encrypt(struct ipsec_sa *sa_p, __u8 *idat, int ilen, const __u8 *iv, int action); + +/*************************************************************** + * + * INTERFACE for AUTH services: key creation, hash functions + * + ***************************************************************/ +int ipsec_alg_auth_key_create(struct ipsec_sa *sa_p); +int ipsec_alg_sa_esp_hash(const struct ipsec_sa *sa_p, const __u8 *espp, int len, __u8 *hash, int hashlen) ; +#define ipsec_alg_sa_esp_update(c,k,l) ipsec_alg_sa_esp_hash(c,k,l,NULL,0) + +/* only called from ipsec_init.c */ +int ipsec_alg_init(void); + +/* algo module glue for static algos */ +void ipsec_alg_static_init(void); +typedef int (*ipsec_alg_init_func_t) (void); + +/********************************************** + * + * INTERFACE for ipsec_sa init and wipe + * + **********************************************/ + +/* returns true if ipsec_sa has ipsec_alg obj attached */ +/* + * Initializes ipsec_sa's ipsec_alg object, using already loaded + * proto, authalg, encalg.; links ipsec_alg objects (enc, auth) + */ +int ipsec_alg_sa_init(struct ipsec_sa *sa_p); +/* + * Destroys ipsec_sa's ipsec_alg object + * unlinking ipsec_alg objects + */ +int ipsec_alg_sa_wipe(struct ipsec_sa *sa_p); + +#define IPSEC_ALG_MODULE_INIT_MOD( func_name ) \ + static int func_name(void); \ + module_init(func_name); \ + static int __init func_name(void) +#define IPSEC_ALG_MODULE_EXIT_MOD( func_name ) \ + static void func_name(void); \ + module_exit(func_name); \ + static void __exit func_name(void) + +#define IPSEC_ALG_MODULE_INIT_STATIC( func_name ) \ + extern int func_name(void); \ + int func_name(void) +#define IPSEC_ALG_MODULE_EXIT_STATIC( func_name ) \ + extern void func_name(void); \ + void func_name(void) + +/********************************************** + * + * 2.2 backport for some 2.4 useful module stuff + * + **********************************************/ +#ifdef MODULE +#ifndef THIS_MODULE +#define THIS_MODULE (&__this_module) +#endif +#ifndef module_init +typedef int (*__init_module_func_t)(void); +typedef void (*__cleanup_module_func_t)(void); + +#define module_init(x) \ + int init_module(void) __attribute__((alias(#x))); \ + static inline __init_module_func_t __init_module_inline(void) \ + { return x; } +#define module_exit(x) \ + void cleanup_module(void) __attribute__((alias(#x))); \ + static inline __cleanup_module_func_t __cleanup_module_inline(void) \ + { return x; } +#endif +#define IPSEC_ALG_MODULE_INIT( func_name ) IPSEC_ALG_MODULE_INIT_MOD( func_name ) +#define IPSEC_ALG_MODULE_EXIT( func_name ) IPSEC_ALG_MODULE_EXIT_MOD( func_name ) + +#else /* not MODULE */ +#ifndef THIS_MODULE +#define THIS_MODULE NULL +#endif +/* + * I only want module_init() magic + * when algo.c file *is THE MODULE*, in all other + * cases, initialization is called explicitely from ipsec_alg_init() + */ +#define IPSEC_ALG_MODULE_INIT( func_name ) IPSEC_ALG_MODULE_INIT_STATIC(func_name) +#define IPSEC_ALG_MODULE_EXIT( func_name ) IPSEC_ALG_MODULE_EXIT_STATIC(func_name) +#endif + +#endif /* IPSEC_ALG_H */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_alg_3des.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,12 @@ +struct TripleDES_context { + des_key_schedule s1; + des_key_schedule s2; + des_key_schedule s3; +}; +typedef struct TripleDES_context TripleDES_context; + +#define ESP_3DES_KEY_SZ 3*(sizeof(des_cblock)) +#define ESP_3DES_CBC_BLK_LEN 8 + + + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_auth.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,100 @@ +/* + * Authentication Header declarations + * Copyright (C) 2003 Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_auth.h,v 1.3 2004/04/06 02:49:08 mcr Exp $ + */ + +#include "ipsec_md5h.h" +#include "ipsec_sha1.h" + +#ifndef IPSEC_AUTH_H +#define IPSEC_AUTH_H + +#define AH_FLENGTH 12 /* size of fixed part */ +#define AHMD5_KMAX 64 /* MD5 max 512 bits key */ +#define AHMD5_AMAX 12 /* MD5 96 bits of authenticator */ + +#define AHMD596_KLEN 16 /* MD5 128 bits key */ +#define AHSHA196_KLEN 20 /* SHA1 160 bits key */ + +#define AHMD596_ALEN 16 /* MD5 128 bits authentication length */ +#define AHSHA196_ALEN 20 /* SHA1 160 bits authentication length */ + +#define AHMD596_BLKLEN 64 /* MD5 block length */ +#define AHSHA196_BLKLEN 64 /* SHA1 block length */ +#define AHSHA2_256_BLKLEN 64 /* SHA2-256 block length */ +#define AHSHA2_384_BLKLEN 128 /* SHA2-384 block length (?) */ +#define AHSHA2_512_BLKLEN 128 /* SHA2-512 block length */ + +#define AH_BLKLEN_MAX 128 /* keep up to date! */ + + +#define AH_AMAX AHSHA196_ALEN /* keep up to date! */ +#define AHHMAC_HASHLEN 12 /* authenticator length of 96bits */ +#define AHHMAC_RPLLEN 4 /* 32 bit replay counter */ + +#define DB_AH_PKTRX 0x0001 +#define DB_AH_PKTRX2 0x0002 +#define DB_AH_DMP 0x0004 +#define DB_AH_IPSA 0x0010 +#define DB_AH_XF 0x0020 +#define DB_AH_INAU 0x0040 +#define DB_AH_REPLAY 0x0100 + +#ifdef __KERNEL__ + +/* General HMAC algorithm is described in RFC 2104 */ + +#define HMAC_IPAD 0x36 +#define HMAC_OPAD 0x5C + +struct md5_ctx { + MD5_CTX ictx; /* context after H(K XOR ipad) */ + MD5_CTX octx; /* context after H(K XOR opad) */ +}; + +struct sha1_ctx { + SHA1_CTX ictx; /* context after H(K XOR ipad) */ + SHA1_CTX octx; /* context after H(K XOR opad) */ +}; + +struct auth_alg { + void (*init)(void *ctx); + void (*update)(void *ctx, unsigned char *bytes, __u32 len); + void (*final)(unsigned char *hash, void *ctx); + int hashlen; +}; + +struct options; + +#endif /* __KERNEL__ */ +#endif /* IPSEC_AUTH_H */ + +/* + * $Log: ipsec_auth.h,v $ + * Revision 1.3 2004/04/06 02:49:08 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.2 2004/04/05 19:55:04 mcr + * Moved from linux/include/freeswan/ipsec_auth.h,v + * + * Revision 1.1 2003/12/13 19:10:16 mcr + * refactored rcv and xmit code - same as FS 2.05. + * + * Revision 1.1 2003/12/06 21:21:19 mcr + * split up receive path into per-transform files, for + * easier later removal. + * + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_encap.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,149 @@ +/* + * declarations relevant to encapsulation-like operations + * Copyright (C) 1996, 1997 John Ioannidis. + * Copyright (C) 1998, 1999, 2000, 2001 Richard Guy Briggs. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_encap.h,v 1.19 2004/04/05 19:55:04 mcr Exp $ + */ + +#ifndef _IPSEC_ENCAP_H_ + +#define SENT_IP4 16 /* data is two struct in_addr + proto + ports*/ + /* (2 * sizeof(struct in_addr)) */ + /* sizeof(struct sockaddr_encap) + - offsetof(struct sockaddr_encap, Sen.Sip4.Src) */ + +struct sockaddr_encap +{ + __u8 sen_len; /* length */ + __u8 sen_family; /* AF_ENCAP */ + __u16 sen_type; /* see SENT_* */ + union + { + struct /* SENT_IP4 */ + { + struct in_addr Src; + struct in_addr Dst; + __u8 Proto; + __u16 Sport; + __u16 Dport; + } Sip4; + } Sen; +}; + +#define sen_ip_src Sen.Sip4.Src +#define sen_ip_dst Sen.Sip4.Dst +#define sen_proto Sen.Sip4.Proto +#define sen_sport Sen.Sip4.Sport +#define sen_dport Sen.Sip4.Dport + +#ifndef AF_ENCAP +#define AF_ENCAP 26 +#endif /* AF_ENCAP */ + +#define _IPSEC_ENCAP_H_ +#endif /* _IPSEC_ENCAP_H_ */ + +/* + * $Log: ipsec_encap.h,v $ + * Revision 1.19 2004/04/05 19:55:04 mcr + * Moved from linux/include/freeswan/ipsec_encap.h,v + * + * Revision 1.18 2003/10/31 02:27:05 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.17.30.1 2003/09/21 13:59:38 mcr + * pre-liminary X.509 patch - does not yet pass tests. + * + * Revision 1.17 2002/04/24 07:36:46 mcr + * Moved from ./klips/net/ipsec/ipsec_encap.h,v + * + * Revision 1.16 2001/11/26 09:23:47 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.15.2.1 2001/09/25 02:18:54 mcr + * struct eroute moved to ipsec_eroute.h + * + * Revision 1.15 2001/09/14 16:58:36 rgb + * Added support for storing the first and last packets through a HOLD. + * + * Revision 1.14 2001/09/08 21:13:31 rgb + * Added pfkey ident extension support for ISAKMPd. (NetCelo) + * + * Revision 1.13 2001/06/14 19:35:08 rgb + * Update copyright date. + * + * Revision 1.12 2001/05/27 06:12:10 rgb + * Added structures for pid, packet count and last access time to eroute. + * Added packet count to beginning of /proc/net/ipsec_eroute. + * + * Revision 1.11 2000/09/08 19:12:56 rgb + * Change references from DEBUG_IPSEC to CONFIG_IPSEC_DEBUG. + * + * Revision 1.10 2000/03/22 16:15:36 rgb + * Fixed renaming of dev_get (MB). + * + * Revision 1.9 2000/01/21 06:13:26 rgb + * Added a macro for AF_ENCAP + * + * Revision 1.8 1999/12/31 14:56:55 rgb + * MB fix for 2.3 dev-use-count. + * + * Revision 1.7 1999/11/18 04:09:18 rgb + * Replaced all kernel version macros to shorter, readable form. + * + * Revision 1.6 1999/09/24 00:34:13 rgb + * Add Marc Boucher's support for 2.3.xx+. + * + * Revision 1.5 1999/04/11 00:28:57 henry + * GPL boilerplate + * + * Revision 1.4 1999/04/06 04:54:25 rgb + * Fix/Add RCSID Id: and Log: bits to make PHMDs happy. This includes + * patch shell fixes. + * + * Revision 1.3 1998/10/19 14:44:28 rgb + * Added inclusion of freeswan.h. + * sa_id structure implemented and used: now includes protocol. + * + * Revision 1.2 1998/07/14 18:19:33 rgb + * Added #ifdef __KERNEL__ directives to restrict scope of header. + * + * Revision 1.1 1998/06/18 21:27:44 henry + * move sources from klips/src to klips/net/ipsec, to keep stupid + * kernel-build scripts happier in the presence of symlinks + * + * Revision 1.2 1998/04/21 21:29:10 rgb + * Rearrange debug switches to change on the fly debug output from user + * space. Only kernel changes checked in at this time. radij.c was also + * changed to temporarily remove buggy debugging code in rj_delete causing + * an OOPS and hence, netlink device open errors. + * + * Revision 1.1 1998/04/09 03:05:58 henry + * sources moved up from linux/net/ipsec + * + * Revision 1.1.1.1 1998/04/08 05:35:02 henry + * RGB's ipsec-0.8pre2.tar.gz ipsec-0.8 + * + * Revision 0.4 1997/01/15 01:28:15 ji + * Minor cosmetic changes. + * + * Revision 0.3 1996/11/20 14:35:48 ji + * Minor Cleanup. + * Rationalized debugging code. + * + * Revision 0.2 1996/11/02 00:18:33 ji + * First limited release. + * + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_eroute.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,112 @@ +/* + * @(#) declarations of eroute structures + * + * Copyright (C) 1996, 1997 John Ioannidis. + * Copyright (C) 1998, 1999, 2000, 2001 Richard Guy Briggs + * Copyright (C) 2001 Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_eroute.h,v 1.5 2004/04/05 19:55:05 mcr Exp $ + * + * derived from ipsec_encap.h 1.15 on 2001/9/18 by mcr. + * + */ + +#ifndef _IPSEC_EROUTE_H_ + +#include "radij.h" +#include "ipsec_encap.h" +#include "ipsec_radij.h" + +/* + * The "type" is really part of the address as far as the routing + * system is concerned. By using only one bit in the type field + * for each type, we sort-of make sure that different types of + * encapsulation addresses won't be matched against the wrong type. + */ + +/* + * An entry in the radix tree + */ + +struct rjtentry +{ + struct radij_node rd_nodes[2]; /* tree glue, and other values */ +#define rd_key(r) ((struct sockaddr_encap *)((r)->rd_nodes->rj_key)) +#define rd_mask(r) ((struct sockaddr_encap *)((r)->rd_nodes->rj_mask)) + short rd_flags; + short rd_count; +}; + +struct ident +{ + __u16 type; /* identity type */ + __u64 id; /* identity id */ + __u8 len; /* identity len */ + caddr_t data; /* identity data */ +}; + +/* + * An encapsulation route consists of a pointer to a + * radix tree entry and a SAID (a destination_address/SPI/protocol triple). + */ + +struct eroute +{ + struct rjtentry er_rjt; + ip_said er_said; + uint32_t er_pid; + uint32_t er_count; + uint64_t er_lasttime; + struct sockaddr_encap er_eaddr; /* MCR get rid of _encap, it is silly*/ + struct sockaddr_encap er_emask; + struct ident er_ident_s; + struct ident er_ident_d; + struct sk_buff* er_first; + struct sk_buff* er_last; +}; + +#define er_dst er_said.dst +#define er_spi er_said.spi + +#define _IPSEC_EROUTE_H_ +#endif /* _IPSEC_EROUTE_H_ */ + +/* + * $Log: ipsec_eroute.h,v $ + * Revision 1.5 2004/04/05 19:55:05 mcr + * Moved from linux/include/freeswan/ipsec_eroute.h,v + * + * Revision 1.4 2003/10/31 02:27:05 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.3.30.2 2003/10/29 01:10:19 mcr + * elimited "struct sa_id" + * + * Revision 1.3.30.1 2003/09/21 13:59:38 mcr + * pre-liminary X.509 patch - does not yet pass tests. + * + * Revision 1.3 2002/04/24 07:36:46 mcr + * Moved from ./klips/net/ipsec/ipsec_eroute.h,v + * + * Revision 1.2 2001/11/26 09:16:13 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.1.2.1 2001/09/25 02:18:54 mcr + * struct eroute moved to ipsec_eroute.h + * + * + * Local variables: + * c-file-style: "linux" + * End: + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_errs.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,53 @@ +/* + * @(#) definition of ipsec_errs structure + * + * Copyright (C) 2001 Richard Guy Briggs + * and Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_errs.h,v 1.4 2004/04/05 19:55:05 mcr Exp $ + * + */ + +/* + * This file describes the errors/statistics that FreeSWAN collects. + * + */ + +struct ipsec_errs { + __u32 ips_alg_errs; /* number of algorithm errors */ + __u32 ips_auth_errs; /* # of authentication errors */ + __u32 ips_encsize_errs; /* # of encryption size errors*/ + __u32 ips_encpad_errs; /* # of encryption pad errors*/ + __u32 ips_replaywin_errs; /* # of pkt sequence errors */ +}; + +/* + * $Log: ipsec_errs.h,v $ + * Revision 1.4 2004/04/05 19:55:05 mcr + * Moved from linux/include/freeswan/ipsec_errs.h,v + * + * Revision 1.3 2002/04/24 07:36:46 mcr + * Moved from ./klips/net/ipsec/ipsec_errs.h,v + * + * Revision 1.2 2001/11/26 09:16:13 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.1.2.1 2001/09/25 02:25:57 mcr + * lifetime structure created and common functions created. + * + * + * Local variables: + * c-file-style: "linux" + * End: + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_esp.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,157 @@ +/* + * Copyright (C) 1996, 1997 John Ioannidis. + * Copyright (C) 1998, 1999, 2000, 2001 Richard Guy Briggs. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_esp.h,v 1.28 2004/09/13 02:22:10 mcr Exp $ + */ + +#include "openswan/ipsec_md5h.h" +#include "openswan/ipsec_sha1.h" + +#include "crypto/des.h" + +#ifndef IPPROTO_ESP +#define IPPROTO_ESP 50 +#endif /* IPPROTO_ESP */ + +#define ESP_HEADER_LEN 8 /* 64 bits header (spi+rpl)*/ + +#define EMT_ESPDESCBC_ULEN 20 /* coming from user mode */ +#define EMT_ESPDES_KMAX 64 /* 512 bit secret key enough? */ +#define EMT_ESPDES_KEY_SZ 8 /* 56 bit secret key with parity = 64 bits */ +#define EMT_ESP3DES_KEY_SZ 24 /* 168 bit secret key with parity = 192 bits */ +#define EMT_ESPDES_IV_SZ 8 /* IV size */ +#define ESP_DESCBC_BLKLEN 8 /* DES-CBC block size */ + +#define ESP_IV_MAXSZ 16 /* This is _critical_ */ +#define ESP_IV_MAXSZ_INT (ESP_IV_MAXSZ/sizeof(int)) + +#define DB_ES_PKTRX 0x0001 +#define DB_ES_PKTRX2 0x0002 +#define DB_ES_IPSA 0x0010 +#define DB_ES_XF 0x0020 +#define DB_ES_IPAD 0x0040 +#define DB_ES_INAU 0x0080 +#define DB_ES_OINFO 0x0100 +#define DB_ES_OINFO2 0x0200 +#define DB_ES_OH 0x0400 +#define DB_ES_REPLAY 0x0800 + +#ifdef __KERNEL__ +struct des_eks { + des_key_schedule ks; +}; + +extern struct inet_protocol esp_protocol; + +struct options; + +struct esphdr +{ + __u32 esp_spi; /* Security Parameters Index */ + __u32 esp_rpl; /* Replay counter */ + __u8 esp_iv[8]; /* iv */ +}; + +extern struct xform_functions esp_xform_funcs[]; + +#ifdef CONFIG_KLIPS_DEBUG +extern int debug_esp; +#endif /* CONFIG_KLIPS_DEBUG */ +#endif /* __KERNEL__ */ + +/* + * $Log: ipsec_esp.h,v $ + * Revision 1.28 2004/09/13 02:22:10 mcr + * #define inet_protocol if necessary. + * + * Revision 1.27 2004/09/06 18:35:41 mcr + * 2.6.8.1 gets rid of inet_protocol->net_protocol compatibility, + * so adjust for that. + * + * Revision 1.26 2004/07/10 19:08:41 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.25 2004/04/06 02:49:08 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.24 2004/04/05 19:55:05 mcr + * Moved from linux/include/freeswan/ipsec_esp.h,v + * + * Revision 1.23 2004/04/05 19:41:05 mcr + * merged alg-branch code. + * + * Revision 1.22 2003/12/13 19:10:16 mcr + * refactored rcv and xmit code - same as FS 2.05. + * + * Revision 1.23 2003/12/11 20:14:58 mcr + * refactored the xmit code, to move all encapsulation + * code into protocol functions. Note that all functions + * are essentially done by a single function, which is probably + * wrong. + * the rcv_functions structures are renamed xform_functions. + * + * Revision 1.22 2003/12/06 21:21:19 mcr + * split up receive path into per-transform files, for + * easier later removal. + * + * Revision 1.21.8.1 2003/12/22 15:25:52 jjo + * Merged algo-0.8.1-rc11-test1 into alg-branch + * + * Revision 1.21 2003/02/06 02:21:34 rgb + * + * Moved "struct auth_alg" from ipsec_rcv.c to ipsec_ah.h . + * Changed "struct ah" to "struct ahhdr" and "struct esp" to "struct esphdr". + * Removed "#ifdef INBOUND_POLICY_CHECK_eroute" dead code. + * + * Revision 1.20 2002/05/14 02:37:02 rgb + * Change reference from _TDB to _IPSA. + * + * Revision 1.19 2002/04/24 07:55:32 mcr + * #include patches and Makefiles for post-reorg compilation. + * + * Revision 1.18 2002/04/24 07:36:46 mcr + * Moved from ./klips/net/ipsec/ipsec_esp.h,v + * + * Revision 1.17 2002/02/20 01:27:07 rgb + * Ditched a pile of structs only used by the old Netlink interface. + * + * Revision 1.16 2001/12/11 02:35:57 rgb + * Change "struct net_device" to "struct device" for 2.2 compatibility. + * + * Revision 1.15 2001/11/26 09:23:48 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.14.2.3 2001/10/23 04:16:42 mcr + * get definition of des_key_schedule from des.h + * + * Revision 1.14.2.2 2001/10/22 20:33:13 mcr + * use "des_key_schedule" structure instead of cooking our own. + * + * Revision 1.14.2.1 2001/09/25 02:18:25 mcr + * replace "struct device" with "struct netdevice" + * + * Revision 1.14 2001/06/14 19:35:08 rgb + * Update copyright date. + * + * Revision 1.13 2000/09/08 19:12:56 rgb + * Change references from DEBUG_IPSEC to CONFIG_IPSEC_DEBUG. + * + * Revision 1.12 2000/08/01 14:51:50 rgb + * Removed _all_ remaining traces of DES. + * + * Revision 1.11 2000/01/10 16:36:20 rgb + * Ditch last of EME option flags, including initiator. + * + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_ipcomp.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,94 @@ +/* + * IP compression header declations + * + * Copyright (C) 2003 Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_ipcomp.h,v 1.4 2004/07/10 19:08:41 mcr Exp $ + */ + +#ifndef IPSEC_IPCOMP_H +#define IPSEC_IPCOMP_H + +#include "openswan/ipsec_auth.h" + +/* Prefix all global deflate symbols with "ipcomp_" to avoid collisions with ppp_deflate & ext2comp */ +#ifndef IPCOMP_PREFIX +#define IPCOMP_PREFIX +#endif /* IPCOMP_PREFIX */ + +#ifndef IPPROTO_COMP +#define IPPROTO_COMP 108 +#endif /* IPPROTO_COMP */ + +#ifdef CONFIG_KLIPS_DEBUG +extern int sysctl_ipsec_debug_ipcomp; +#endif /* CONFIG_KLIPS_DEBUG */ + +struct ipcomphdr { /* IPCOMP header */ + __u8 ipcomp_nh; /* Next header (protocol) */ + __u8 ipcomp_flags; /* Reserved, must be 0 */ + __u16 ipcomp_cpi; /* Compression Parameter Index */ +}; + +extern struct inet_protocol comp_protocol; +extern int sysctl_ipsec_debug_ipcomp; + +#define IPCOMP_UNCOMPRESSABLE 0x000000001 +#define IPCOMP_COMPRESSIONERROR 0x000000002 +#define IPCOMP_PARMERROR 0x000000004 +#define IPCOMP_DECOMPRESSIONERROR 0x000000008 + +#define IPCOMP_ADAPT_INITIAL_TRIES 8 +#define IPCOMP_ADAPT_INITIAL_SKIP 4 +#define IPCOMP_ADAPT_SUBSEQ_TRIES 2 +#define IPCOMP_ADAPT_SUBSEQ_SKIP 8 + +/* Function prototypes */ +struct sk_buff *skb_compress(struct sk_buff *skb, struct ipsec_sa *ips, unsigned int *flags); +struct sk_buff *skb_decompress(struct sk_buff *skb, struct ipsec_sa *ips, unsigned int *flags); + +extern struct xform_functions ipcomp_xform_funcs[]; + +#endif /* IPSEC_IPCOMP_H */ + +/* + * $Log: ipsec_ipcomp.h,v $ + * Revision 1.4 2004/07/10 19:08:41 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.3 2004/04/06 02:49:08 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.2 2004/04/05 19:55:05 mcr + * Moved from linux/include/freeswan/ipsec_ipcomp.h,v + * + * Revision 1.1 2003/12/13 19:10:16 mcr + * refactored rcv and xmit code - same as FS 2.05. + * + * Revision 1.2 2003/12/11 20:14:58 mcr + * refactored the xmit code, to move all encapsulation + * code into protocol functions. Note that all functions + * are essentially done by a single function, which is probably + * wrong. + * the rcv_functions structures are renamed xform_functions. + * + * Revision 1.1 2003/12/06 21:21:19 mcr + * split up receive path into per-transform files, for + * easier later removal. + * + * + * + */ + + + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_ipe4.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,68 @@ +/* + * IP-in-IP Header declarations + * Copyright (C) 1996, 1997 John Ioannidis. + * Copyright (C) 1998, 1999, 2000, 2001 Richard Guy Briggs. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_ipe4.h,v 1.6 2004/04/05 19:55:05 mcr Exp $ + */ + +/* The packet header is an IP header! */ + +struct ipe4_xdata /* transform table data */ +{ + struct in_addr i4_src; + struct in_addr i4_dst; +}; + +#define EMT_IPE4_ULEN 8 /* coming from user mode */ + + +/* + * $Log: ipsec_ipe4.h,v $ + * Revision 1.6 2004/04/05 19:55:05 mcr + * Moved from linux/include/freeswan/ipsec_ipe4.h,v + * + * Revision 1.5 2002/04/24 07:36:46 mcr + * Moved from ./klips/net/ipsec/ipsec_ipe4.h,v + * + * Revision 1.4 2001/06/14 19:35:08 rgb + * Update copyright date. + * + * Revision 1.3 1999/04/11 00:28:57 henry + * GPL boilerplate + * + * Revision 1.2 1999/04/06 04:54:25 rgb + * Fix/Add RCSID Id: and Log: bits to make PHMDs happy. This includes + * patch shell fixes. + * + * Revision 1.1 1998/06/18 21:27:47 henry + * move sources from klips/src to klips/net/ipsec, to keep stupid + * kernel-build scripts happier in the presence of symlinks + * + * Revision 1.1 1998/04/09 03:06:07 henry + * sources moved up from linux/net/ipsec + * + * Revision 1.1.1.1 1998/04/08 05:35:03 henry + * RGB's ipsec-0.8pre2.tar.gz ipsec-0.8 + * + * Revision 0.4 1997/01/15 01:28:15 ji + * No changes. + * + * Revision 0.3 1996/11/20 14:48:53 ji + * Release update only. + * + * Revision 0.2 1996/11/02 00:18:33 ji + * First limited release. + * + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_ipip.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,45 @@ +/* + * Copyright (C) 2003 Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_ipip.h,v 1.2 2004/04/05 19:55:05 mcr Exp $ + */ + +#ifndef _IPSEC_IPIP_H_ + +#ifndef IPPROTO_IPIP +#define IPPROTO_IPIP 4 +#endif /* IPPROTO_ESP */ + +extern struct xform_functions ipip_xform_funcs[]; + +#define _IPSEC_IPIP_H_ + +#endif /* _IPSEC_IPIP_H_ */ + +/* + * $Log: ipsec_ipip.h,v $ + * Revision 1.2 2004/04/05 19:55:05 mcr + * Moved from linux/include/freeswan/ipsec_ipip.h,v + * + * Revision 1.1 2003/12/13 19:10:16 mcr + * refactored rcv and xmit code - same as FS 2.05. + * + * Revision 1.1 2003/12/11 20:14:58 mcr + * refactored the xmit code, to move all encapsulation + * code into protocol functions. Note that all functions + * are essentially done by a single function, which is probably + * wrong. + * the rcv_functions structures are renamed xform_functions. + * + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_kern24.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,61 @@ +/* + * @(#) routines to makes kernel 2.4 compatible with 2.6 usage. + * + * Copyright (C) 2004 Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_kern24.h,v 1.4 2005/05/20 03:19:18 mcr Exp $ + */ + +#ifndef _IPSEC_KERN24_H + +#ifndef NET_26 +#define sk_receive_queue receive_queue +#define sk_destruct destruct +#define sk_reuse reuse +#define sk_zapped zapped +#define sk_family family +#define sk_protocol protocol +#define sk_protinfo protinfo +#define sk_sleep sleep +#define sk_state_change state_change +#define sk_shutdown shutdown +#define sk_err err +#define sk_stamp stamp +#define sk_socket socket +#define sk_sndbuf sndbuf +#define sock_flag(sk, flag) sk->dead +#define sk_for_each(sk, node, plist) for(sk=*plist; sk!=NULL; sk = sk->next) +#endif + +/* deal with 2.4 vs 2.6 issues with module counts */ + +/* in 2.6, all refcounts are maintained *outside* of the + * module to deal with race conditions. + */ + +#ifdef NET_26 +#define KLIPS_INC_USE /* nothing */ +#define KLIPS_DEC_USE /* nothing */ + +#else +#define KLIPS_INC_USE MOD_INC_USE_COUNT +#define KLIPS_DEC_USE MOD_DEC_USE_COUNT +#endif + +extern int printk_ratelimit(void); + + +#define _IPSEC_KERN24_H 1 + +#endif /* _IPSEC_KERN24_H */ + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_kversion.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,352 @@ +#ifndef _OPENSWAN_KVERSIONS_H +/* + * header file for FreeS/WAN library functions + * Copyright (C) 1998, 1999, 2000 Henry Spencer. + * Copyright (C) 1999, 2000, 2001 Richard Guy Briggs + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + * License for more details. + * + * RCSID $Id: ipsec_kversion.h,v 1.15.2.11 2007/02/20 03:53:16 paul Exp $ + */ +#define _OPENSWAN_KVERSIONS_H /* seen it, no need to see it again */ + +/* + * this file contains a series of atomic defines that depend upon + * kernel version numbers. The kernel versions are arranged + * in version-order number (which is often not chronological) + * and each clause enables or disables a feature. + */ + +/* + * First, assorted kernel-version-dependent trickery. + */ +#include +#ifndef KERNEL_VERSION +#define KERNEL_VERSION(x,y,z) (((x)<<16)+((y)<<8)+(z)) +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,0) +#define HEADER_CACHE_BIND_21 +#error "KLIPS is no longer supported on Linux 2.0. Sorry" +#endif + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,0) +#define SPINLOCK +#define PROC_FS_21 +#define NETLINK_SOCK +#define NET_21 +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,19) +#define net_device_stats enet_statistics +#endif + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0) +#define SPINLOCK_23 +#define NETDEV_23 +# ifndef CONFIG_IP_ALIAS +# define CONFIG_IP_ALIAS +# endif +#include +#include +#include +# ifdef NETLINK_XFRM +# define NETDEV_25 +# endif +#endif + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,25) +#define PROC_FS_2325 +#undef PROC_FS_21 +#endif + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,30) +#define PROC_NO_DUMMY +#endif + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,35) +#define SKB_COPY_EXPAND +#endif + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,37) +#define IP_SELECT_IDENT +#endif + +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,50)) && defined(CONFIG_NETFILTER) +#define SKB_RESET_NFCT +#endif + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,2) +#define IP_SELECT_IDENT_NEW +#endif + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,4) +#define IPH_is_SKB_PULLED +#define SKB_COW_NEW +#define PROTO_HANDLER_SINGLE_PARM +#define IP_FRAGMENT_LINEARIZE 1 +#else /* LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,4) */ +# ifdef REDHAT_BOGOSITY +# define IP_SELECT_IDENT_NEW +# define IPH_is_SKB_PULLED +# define SKB_COW_NEW +# define PROTO_HANDLER_SINGLE_PARM +# endif /* REDHAT_BOGOSITY */ +#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,4) */ + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,9) +#define MALLOC_SLAB +#define LINUX_KERNEL_HAS_SNPRINTF +#endif + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) +#define HAVE_NETDEV_PRINTK 1 +#define NET_26 +#endif + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,8) +#define NEED_INET_PROTOCOL +#endif + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,12) +#define HAVE_SOCK_ZAPPED +#define NET_26_12_SKALLOC +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,13) +#define HAVE_SOCK_SECURITY +/* skb->nf_debug disappared completely in 2.6.13 */ +#define HAVE_SKB_NF_DEBUG +#endif + +#define SYSCTL_IPSEC_DEFAULT_TTL sysctl_ip_default_ttl +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,14) +/* skb->stamp changed to skb->tstamp in 2.6.14 */ +#define HAVE_TSTAMP +#define HAVE_INET_SK_SPORT +#undef SYSCTL_IPSEC_DEFAULT_TTL +#define SYSCTL_IPSEC_DEFAULT_TTL IPSEC_DEFAULT_TTL +#else +#define HAVE_SKB_LIST +#endif + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18) +#define HAVE_NEW_SKB_LINEARIZE +#endif + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20) +/* skb->nfmark changed to skb->mark in 2.6.20 */ +#define nfmark mark +#endif + +#ifdef NET_21 +# include +#else + /* old kernel in.h has some IPv6 stuff, but not quite enough */ +# define s6_addr16 s6_addr +# define AF_INET6 10 +# define uint8_t __u8 +# define uint16_t __u16 +# define uint32_t __u32 +# define uint64_t __u64 +#endif + +#ifdef NET_21 +# define ipsec_kfree_skb(a) kfree_skb(a) +#else /* NET_21 */ +# define ipsec_kfree_skb(a) kfree_skb(a, FREE_WRITE) +#endif /* NET_21 */ + +#ifdef NETDEV_23 +#if 0 +#ifndef NETDEV_25 +#define device net_device +#endif +#endif +# define ipsec_dev_get dev_get_by_name +# define __ipsec_dev_get __dev_get_by_name +# define ipsec_dev_put(x) dev_put(x) +# define __ipsec_dev_put(x) __dev_put(x) +# define ipsec_dev_hold(x) dev_hold(x) +#else /* NETDEV_23 */ +# define ipsec_dev_get dev_get +# define __ipsec_dev_put(x) +# define ipsec_dev_put(x) +# define ipsec_dev_hold(x) +#endif /* NETDEV_23 */ + +#ifndef SPINLOCK +# include + /* simulate spin locks and read/write locks */ + typedef struct { + volatile char lock; + } spinlock_t; + + typedef struct { + volatile unsigned int lock; + } rwlock_t; + +# define spin_lock_init(x) { (x)->lock = 0;} +# define rw_lock_init(x) { (x)->lock = 0; } + +# define spin_lock(x) { while ((x)->lock) barrier(); (x)->lock=1;} +# define spin_lock_irq(x) { cli(); spin_lock(x);} +# define spin_lock_irqsave(x,flags) { save_flags(flags); spin_lock_irq(x);} + +# define spin_unlock(x) { (x)->lock=0;} +# define spin_unlock_irq(x) { spin_unlock(x); sti();} +# define spin_unlock_irqrestore(x,flags) { spin_unlock(x); restore_flags(flags);} + +# define read_lock(x) spin_lock(x) +# define read_lock_irq(x) spin_lock_irq(x) +# define read_lock_irqsave(x,flags) spin_lock_irqsave(x,flags) + +# define read_unlock(x) spin_unlock(x) +# define read_unlock_irq(x) spin_unlock_irq(x) +# define read_unlock_irqrestore(x,flags) spin_unlock_irqrestore(x,flags) + +# define write_lock(x) spin_lock(x) +# define write_lock_irq(x) spin_lock_irq(x) +# define write_lock_irqsave(x,flags) spin_lock_irqsave(x,flags) + +# define write_unlock(x) spin_unlock(x) +# define write_unlock_irq(x) spin_unlock_irq(x) +# define write_unlock_irqrestore(x,flags) spin_unlock_irqrestore(x,flags) +#endif /* !SPINLOCK */ + +#ifndef SPINLOCK_23 +# define spin_lock_bh(x) spin_lock_irq(x) +# define spin_unlock_bh(x) spin_unlock_irq(x) + +# define read_lock_bh(x) read_lock_irq(x) +# define read_unlock_bh(x) read_unlock_irq(x) + +# define write_lock_bh(x) write_lock_irq(x) +# define write_unlock_bh(x) write_unlock_irq(x) +#endif /* !SPINLOCK_23 */ + +#ifndef HAVE_NETDEV_PRINTK +#define netdev_printk(sevlevel, netdev, msglevel, format, arg...) \ + printk(sevlevel "%s: " format , netdev->name , ## arg) +#endif + +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,0) +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0) +#include "openswan/ipsec_kern24.h" +#else +#error "kernels before 2.4 are not supported at this time" +#endif +#endif + + +#endif /* _OPENSWAN_KVERSIONS_H */ + +/* + * $Log: ipsec_kversion.h,v $ + * Revision 1.15.2.11 2007/02/20 03:53:16 paul + * Added comment, made layout consistent with other checks. + * + * Revision 1.15.2.10 2007/02/16 19:08:12 paul + * Fix for compiling on 2.6.20 (nfmark is now called mark in sk_buff) + * + * Revision 1.15.2.9 2006/07/29 05:00:40 paul + * Added HAVE_NEW_SKB_LINEARIZE for 2.6.18+ kernels where skb_linearize + * only takes 1 argument. + * + * Revision 1.15.2.8 2006/05/01 14:31:52 mcr + * FREESWAN->OPENSWAN in #ifdef. + * + * Revision 1.15.2.7 2006/01/11 02:02:59 mcr + * updated patches and DEFAULT_TTL code to work + * + * Revision 1.15.2.6 2006/01/03 19:25:02 ken + * Remove duplicated #ifdef for TTL fix - bad patch + * + * Revision 1.15.2.5 2006/01/03 18:06:33 ken + * Fix for missing sysctl default ttl + * + * Revision 1.15.2.4 2005/11/27 21:40:14 paul + * Pull down TTL fixes from head. this fixes "Unknown symbol sysctl_ip_default_ttl" + * in for klips as module. + * + * Revision 1.15.2.3 2005/11/22 04:11:52 ken + * Backport fixes for 2.6.14 kernels from HEAD + * + * Revision 1.15.2.2 2005/09/01 01:57:19 paul + * michael's fixes for 2.6.13 from head + * + * Revision 1.15.2.1 2005/08/27 23:13:48 paul + * Fix for: + * 7 weeks ago: [NET]: Remove unused security member in sk_buff + * changeset 4280: 328ea53f5fee + * parent 4279: beb0afb0e3f8 + * author: Thomas Graf + * date: Tue Jul 5 21:12:44 2005 + * files: include/linux/skbuff.h include/linux/tc_ematch/tc_em_meta.h net/core/skbuff.c net/ipv4/ip_output.c net/ipv6/ip6_output.c net/sched/em_meta.c + * + * This should fix compilation on 2.6.13(rc) kernels + * + * Revision 1.15 2005/07/19 20:02:15 mcr + * sk_alloc() interface change. + * + * Revision 1.14 2005/07/08 16:20:05 mcr + * fix for 2.6.12 disapperance of sk_zapped field -> sock_flags. + * + * Revision 1.13 2005/05/20 03:19:18 mcr + * modifications for use on 2.4.30 kernel, with backported + * printk_ratelimit(). all warnings removed. + * + * Revision 1.12 2005/04/13 22:46:21 mcr + * note that KLIPS does not work on Linux 2.0. + * + * Revision 1.11 2004/09/13 02:22:26 mcr + * #define inet_protocol if necessary. + * + * Revision 1.10 2004/08/03 18:17:15 mcr + * in 2.6, use "net_device" instead of #define device->net_device. + * this probably breaks 2.0 compiles. + * + * Revision 1.9 2004/04/05 19:55:05 mcr + * Moved from linux/include/freeswan/ipsec_kversion.h,v + * + * Revision 1.8 2003/12/13 19:10:16 mcr + * refactored rcv and xmit code - same as FS 2.05. + * + * Revision 1.7 2003/07/31 22:48:08 mcr + * derive NET25-ness from presence of NETLINK_XFRM macro. + * + * Revision 1.6 2003/06/24 20:22:32 mcr + * added new global: ipsecdevices[] so that we can keep track of + * the ipsecX devices. They will be referenced with dev_hold(), + * so 2.2 may need this as well. + * + * Revision 1.5 2003/04/03 17:38:09 rgb + * Centralised ipsec_kfree_skb and ipsec_dev_{get,put}. + * + * Revision 1.4 2002/04/24 07:36:46 mcr + * Moved from ./klips/net/ipsec/ipsec_kversion.h,v + * + * Revision 1.3 2002/04/12 03:21:17 mcr + * three parameter version of ip_select_ident appears first + * in 2.4.2 (RH7.1) not 2.4.4. + * + * Revision 1.2 2002/03/08 21:35:22 rgb + * Defined LINUX_KERNEL_HAS_SNPRINTF to shut up compiler warnings after + * 2.4.9. (Andreas Piesk). + * + * Revision 1.1 2002/01/29 02:11:42 mcr + * removal of kversions.h - sources that needed it now use ipsec_param.h. + * updating of IPv6 structures to match latest in6.h version. + * removed dead code from freeswan.h that also duplicated kversions.h + * code. + * + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_life.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,112 @@ +/* + * Definitions relevant to IPSEC lifetimes + * Copyright (C) 2001 Richard Guy Briggs + * and Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_life.h,v 1.4 2004/04/05 19:55:05 mcr Exp $ + * + * This file derived from ipsec_xform.h on 2001/9/18 by mcr. + * + */ + +/* + * This file describes the book keeping fields for the + * IPsec Security Association Structure. ("ipsec_sa") + * + * This structure is never allocated directly by kernel code, + * (it is always a static/auto or is part of a structure) + * so it does not have a reference count. + * + */ + +#ifndef _IPSEC_LIFE_H_ + +/* + * _count is total count. + * _hard is hard limit (kill SA after this number) + * _soft is soft limit (try to renew SA after this number) + * _last is used in some special cases. + * + */ + +struct ipsec_lifetime64 +{ + __u64 ipl_count; + __u64 ipl_soft; + __u64 ipl_hard; + __u64 ipl_last; +}; + +struct ipsec_lifetimes +{ + /* number of bytes processed */ + struct ipsec_lifetime64 ipl_bytes; + + /* number of packets processed */ + struct ipsec_lifetime64 ipl_packets; + + /* time since SA was added */ + struct ipsec_lifetime64 ipl_addtime; + + /* time since SA was first used */ + struct ipsec_lifetime64 ipl_usetime; + + /* from rfc2367: + * For CURRENT, the number of different connections, + * endpoints, or flows that the association has been + * allocated towards. For HARD and SOFT, the number of + * these the association may be allocated towards + * before it expires. The concept of a connection, + * flow, or endpoint is system specific. + * + * mcr(2001-9-18) it is unclear what purpose these serve for FreeSWAN. + * They are maintained for PF_KEY compatibility. + */ + struct ipsec_lifetime64 ipl_allocations; +}; + +enum ipsec_life_alive { + ipsec_life_harddied = -1, + ipsec_life_softdied = 0, + ipsec_life_okay = 1 +}; + +enum ipsec_life_type { + ipsec_life_timebased = 1, + ipsec_life_countbased= 0 +}; + +#define _IPSEC_LIFE_H_ +#endif /* _IPSEC_LIFE_H_ */ + + +/* + * $Log: ipsec_life.h,v $ + * Revision 1.4 2004/04/05 19:55:05 mcr + * Moved from linux/include/freeswan/ipsec_life.h,v + * + * Revision 1.3 2002/04/24 07:36:46 mcr + * Moved from ./klips/net/ipsec/ipsec_life.h,v + * + * Revision 1.2 2001/11/26 09:16:14 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.1.2.1 2001/09/25 02:25:58 mcr + * lifetime structure created and common functions created. + * + * + * Local variables: + * c-file-style: "linux" + * End: + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_md5h.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,143 @@ +/* + * RCSID $Id: ipsec_md5h.h,v 1.10 2004/09/08 17:21:35 ken Exp $ + */ + +/* + * The rest of this file is Copyright RSA DSI. See the following comments + * for the full Copyright notice. + */ + +#ifndef _IPSEC_MD5H_H_ +#define _IPSEC_MD5H_H_ + +/* GLOBAL.H - RSAREF types and constants + */ + +/* PROTOTYPES should be set to one if and only if the compiler supports + function argument prototyping. + The following makes PROTOTYPES default to 0 if it has not already + been defined with C compiler flags. + */ +#ifndef PROTOTYPES +#define PROTOTYPES 1 +#endif /* !PROTOTYPES */ + +/* POINTER defines a generic pointer type */ +typedef __u8 *POINTER; + +/* UINT2 defines a two byte word */ +typedef __u16 UINT2; + +/* UINT4 defines a four byte word */ +typedef __u32 UINT4; + +/* PROTO_LIST is defined depending on how PROTOTYPES is defined above. + If using PROTOTYPES, then PROTO_LIST returns the list, otherwise it + returns an empty list. + */ + +#if PROTOTYPES +#define PROTO_LIST(list) list +#else /* PROTOTYPES */ +#define PROTO_LIST(list) () +#endif /* PROTOTYPES */ + + +/* MD5.H - header file for MD5C.C + */ + +/* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All +rights reserved. + +License to copy and use this software is granted provided that it +is identified as the "RSA Data Security, Inc. MD5 Message-Digest +Algorithm" in all material mentioning or referencing this software +or this function. + +License is also granted to make and use derivative works provided +that such works are identified as "derived from the RSA Data +Security, Inc. MD5 Message-Digest Algorithm" in all material +mentioning or referencing the derived work. + +RSA Data Security, Inc. makes no representations concerning either +the merchantability of this software or the suitability of this +software for any particular purpose. It is provided "as is" +without express or implied warranty of any kind. + +These notices must be retained in any copies of any part of this +documentation and/or software. + */ + +/* MD5 context. */ +typedef struct { + UINT4 state[4]; /* state (ABCD) */ + UINT4 count[2]; /* number of bits, modulo 2^64 (lsb first) */ + unsigned char buffer[64]; /* input buffer */ +} MD5_CTX; + +void osMD5Init PROTO_LIST ((void *)); +void osMD5Update PROTO_LIST + ((void *, unsigned char *, __u32)); +void osMD5Final PROTO_LIST ((unsigned char [16], void *)); + +#endif /* _IPSEC_MD5H_H_ */ + +/* + * $Log: ipsec_md5h.h,v $ + * Revision 1.10 2004/09/08 17:21:35 ken + * Rename MD5* -> osMD5 functions to prevent clashes with other symbols exported by kernel modules (CIFS in 2.6 initiated this) + * + * Revision 1.9 2004/04/05 19:55:05 mcr + * Moved from linux/include/freeswan/ipsec_md5h.h,v + * + * Revision 1.8 2002/09/10 01:45:09 mcr + * changed type of MD5_CTX and SHA1_CTX to void * so that + * the function prototypes would match, and could be placed + * into a pointer to a function. + * + * Revision 1.7 2002/04/24 07:36:46 mcr + * Moved from ./klips/net/ipsec/ipsec_md5h.h,v + * + * Revision 1.6 1999/12/13 13:59:13 rgb + * Quick fix to argument size to Update bugs. + * + * Revision 1.5 1999/12/07 18:16:23 rgb + * Fixed comments at end of #endif lines. + * + * Revision 1.4 1999/04/06 04:54:26 rgb + * Fix/Add RCSID Id: and Log: bits to make PHMDs happy. This includes + * patch shell fixes. + * + * Revision 1.3 1999/01/22 06:19:58 rgb + * 64-bit clean-up. + * + * Revision 1.2 1998/11/30 13:22:54 rgb + * Rationalised all the klips kernel file headers. They are much shorter + * now and won't conflict under RH5.2. + * + * Revision 1.1 1998/06/18 21:27:48 henry + * move sources from klips/src to klips/net/ipsec, to keep stupid + * kernel-build scripts happier in the presence of symlinks + * + * Revision 1.2 1998/04/23 20:54:03 rgb + * Fixed md5 and sha1 include file nesting issues, to be cleaned up when + * verified. + * + * Revision 1.1 1998/04/09 03:04:21 henry + * sources moved up from linux/net/ipsec + * these two include files modified not to include others except in kernel + * + * Revision 1.1.1.1 1998/04/08 05:35:03 henry + * RGB's ipsec-0.8pre2.tar.gz ipsec-0.8 + * + * Revision 0.4 1997/01/15 01:28:15 ji + * No changes. + * + * Revision 0.3 1996/11/20 14:48:53 ji + * Release update only. + * + * Revision 0.2 1996/11/02 00:18:33 ji + * First limited release. + * + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_param.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,387 @@ +/* + * @(#) Openswan tunable paramaters + * + * Copyright (C) 2001 Richard Guy Briggs + * and Michael Richardson + * Copyright (C) 2004 Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_param.h,v 1.29.6.3 2006/05/01 14:32:31 mcr Exp $ + * + */ + +/* + * This file provides a set of #define's which may be tuned by various + * people/configurations. It keeps all compile-time tunables in one place. + * + * This file should be included before all other IPsec kernel-only files. + * + */ + +#ifndef _IPSEC_PARAM_H_ + +#ifdef __KERNEL__ +#include "ipsec_kversion.h" + +/* Set number of ipsecX virtual devices here. */ +/* This must be < exp(field width of IPSEC_DEV_FORMAT) */ +/* It must also be reasonable so as not to overload the memory and CPU */ +/* constraints of the host. */ +#define IPSEC_NUM_IF 4 +/* The field width must be < IF_NAM_SIZ - strlen("ipsec") - 1. */ +/* With "ipsec" being 5 characters, that means 10 is the max field width */ +/* but machine memory and CPU constraints are not likely to tollerate */ +/* more than 3 digits. The default is one digit. */ +/* Update: userland scripts get upset if they can't find "ipsec0", so */ +/* for now, no "0"-padding should be used (which would have been helpful */ +/* to make text-searches work */ +#define IPSEC_DEV_FORMAT "ipsec%d" +/* For, say, 500 virtual ipsec devices, I would recommend: */ +/* #define IPSEC_NUM_IF 500 */ +/* #define IPSEC_DEV_FORMAT "ipsec%03d" */ +/* Note that the "interfaces=" line in /etc/ipsec.conf would be, um, challenging. */ + +/* use dynamic ipsecX device allocation */ +#ifndef CONFIG_KLIPS_DYNDEV +#define CONFIG_KLIPS_DYNDEV 1 +#endif /* CONFIG_KLIPS_DYNDEV */ + + +#ifdef CONFIG_KLIPS_BIGGATE +# define SADB_HASHMOD 8069 +#else /* CONFIG_KLIPS_BIGGATE */ +# define SADB_HASHMOD 257 +#endif /* CONFIG_KLIPS_BIGGATE */ +#endif /* __KERNEL__ */ + +/* + * This is for the SA reference table. This number is related to the + * maximum number of SAs that KLIPS can concurrently deal with, plus enough + * space for keeping expired SAs around. + * + * TABLE_MAX_WIDTH is the number of bits that we will use. + * MAIN_TABLE_WIDTH is the number of bits used for the primary index table. + * + */ +#ifndef IPSEC_SA_REF_TABLE_IDX_WIDTH +# define IPSEC_SA_REF_TABLE_IDX_WIDTH 16 +#endif + +#ifndef IPSEC_SA_REF_MAINTABLE_IDX_WIDTH +# define IPSEC_SA_REF_MAINTABLE_IDX_WIDTH 4 +#endif + +#ifndef IPSEC_SA_REF_FREELIST_NUM_ENTRIES +# define IPSEC_SA_REF_FREELIST_NUM_ENTRIES 256 +#endif + +#ifndef IPSEC_SA_REF_CODE +# define IPSEC_SA_REF_CODE 1 +#endif + +#ifdef __KERNEL__ +/* This is defined for 2.4, but not 2.2.... */ +#ifndef ARPHRD_VOID +# define ARPHRD_VOID 0xFFFF +#endif + +/* always turn on IPIP mode */ +#ifndef CONFIG_KLIPS_IPIP +#define CONFIG_KLIPS_IPIP 1 +#endif + +/* + * Worry about PROC_FS stuff + */ +#if defined(PROC_FS_2325) +/* kernel 2.4 */ +# define IPSEC_PROC_LAST_ARG ,int *eof,void *data +# define IPSEC_PROCFS_DEBUG_NO_STATIC +# define IPSEC_PROC_SUBDIRS +#else +/* kernel <2.4 */ +# define IPSEC_PROCFS_DEBUG_NO_STATIC DEBUG_NO_STATIC + +# ifndef PROC_NO_DUMMY +# define IPSEC_PROC_LAST_ARG , int dummy +# else +# define IPSEC_PROC_LAST_ARG +# endif /* !PROC_NO_DUMMY */ +#endif /* PROC_FS_2325 */ + +#if !defined(LINUX_KERNEL_HAS_SNPRINTF) +/* GNU CPP specific! */ +# define snprintf(buf, len, fmt...) sprintf(buf, ##fmt) +#endif /* !LINUX_KERNEL_HAS_SNPRINTF */ + +#ifdef SPINLOCK +# ifdef SPINLOCK_23 +# include /* *lock* */ +# else /* SPINLOCK_23 */ +# include /* *lock* */ +# endif /* SPINLOCK_23 */ +#endif /* SPINLOCK */ + +#ifndef KLIPS_FIXES_DES_PARITY +# define KLIPS_FIXES_DES_PARITY 1 +#endif /* !KLIPS_FIXES_DES_PARITY */ + +/* we don't really want to print these unless there are really big problems */ +#ifndef KLIPS_DIVULGE_CYPHER_KEY +# define KLIPS_DIVULGE_CYPHER_KEY 0 +#endif /* !KLIPS_DIVULGE_CYPHER_KEY */ + +#ifndef KLIPS_DIVULGE_HMAC_KEY +# define KLIPS_DIVULGE_HMAC_KEY 0 +#endif /* !KLIPS_DIVULGE_HMAC_KEY */ + +#ifndef IPSEC_DISALLOW_IPOPTIONS +# define IPSEC_DISALLOW_IPOPTIONS 1 +#endif /* !KLIPS_DIVULGE_HMAC_KEY */ + +/* extra toggles for regression testing */ +#ifdef CONFIG_KLIPS_REGRESS + +/* + * should pfkey_acquire() become 100% lossy? + * + */ +extern int sysctl_ipsec_regress_pfkey_lossage; +#ifndef KLIPS_PFKEY_ACQUIRE_LOSSAGE +# ifdef CONFIG_KLIPS_PFKEY_ACQUIRE_LOSSAGE +# define KLIPS_PFKEY_ACQUIRE_LOSSAGE 100 +# endif /* CONFIG_KLIPS_PFKEY_ACQUIRE_LOSSAGE */ +#else +#define KLIPS_PFKEY_ACQUIRE_LOSSAGE 0 +#endif /* KLIPS_PFKEY_ACQUIRE_LOSSAGE */ + +#else /* CONFIG_KLIPS_REGRESS */ +#define KLIPS_PFKEY_ACQUIRE_LOSSAGE 0 + +#endif /* CONFIG_KLIPS_REGRESS */ + + +/* + * debugging routines. + */ +#define KLIPS_ERROR(flag, format, args...) if(printk_ratelimit() || flag) printk(KERN_ERR "KLIPS " format, ## args) +#ifdef CONFIG_KLIPS_DEBUG +extern void ipsec_print_ip(struct iphdr *ip); + + #define KLIPS_PRINT(flag, format, args...) \ + ((flag) ? printk(KERN_INFO format , ## args) : 0) + #define KLIPS_PRINTMORE(flag, format, args...) \ + ((flag) ? printk(format , ## args) : 0) + #define KLIPS_IP_PRINT(flag, ip) \ + ((flag) ? ipsec_print_ip(ip) : 0) +#else /* CONFIG_KLIPS_DEBUG */ + #define KLIPS_PRINT(flag, format, args...) do ; while(0) + #define KLIPS_PRINTMORE(flag, format, args...) do ; while(0) + #define KLIPS_IP_PRINT(flag, ip) do ; while(0) +#endif /* CONFIG_KLIPS_DEBUG */ + + +/* + * Stupid kernel API differences in APIs. Not only do some + * kernels not have ip_select_ident, but some have differing APIs, + * and SuSE has one with one parameter, but no way of checking to + * see what is really what. + */ + +#ifdef SUSE_LINUX_2_4_19_IS_STUPID +#define KLIPS_IP_SELECT_IDENT(iph, skb) ip_select_ident(iph) +#else + +/* simplest case, nothing */ +#if !defined(IP_SELECT_IDENT) +#define KLIPS_IP_SELECT_IDENT(iph, skb) do { iph->id = htons(ip_id_count++); } while(0) +#endif + +/* kernels > 2.3.37-ish */ +#if defined(IP_SELECT_IDENT) && !defined(IP_SELECT_IDENT_NEW) +#define KLIPS_IP_SELECT_IDENT(iph, skb) ip_select_ident(iph, skb->dst) +#endif + +/* kernels > 2.4.2 */ +#if defined(IP_SELECT_IDENT) && defined(IP_SELECT_IDENT_NEW) +#define KLIPS_IP_SELECT_IDENT(iph, skb) ip_select_ident(iph, skb->dst, NULL) +#endif + +#endif /* SUSE_LINUX_2_4_19_IS_STUPID */ + +/* + * make klips fail test:east-espiv-01. + * exploit is at testing/attacks/espiv + * + */ +#define KLIPS_IMPAIRMENT_ESPIV_CBC_ATTACK 0 + + +/* IP_FRAGMENT_LINEARIZE is set in freeswan.h if Kernel > 2.4.4 */ +#ifndef IP_FRAGMENT_LINEARIZE +# define IP_FRAGMENT_LINEARIZE 0 +#endif /* IP_FRAGMENT_LINEARIZE */ +#endif /* __KERNEL__ */ + +#ifdef NEED_INET_PROTOCOL +#define inet_protocol net_protocol +#endif + +#if defined(CONFIG_IPSEC_NAT_TRAVERSAL) && CONFIG_IPSEC_NAT_TRAVERSAL +#define NAT_TRAVERSAL 1 +#else +/* let people either #undef, or #define = 0 it */ +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL +#undef CONFIG_IPSEC_NAT_TRAVERSAL +#endif +#endif + +#ifndef IPSEC_DEFAULT_TTL +#define IPSEC_DEFAULT_TTL 64 +#endif + +#define _IPSEC_PARAM_H_ +#endif /* _IPSEC_PARAM_H_ */ + +/* + * $Log: ipsec_param.h,v $ + * Revision 1.29.6.3 2006/05/01 14:32:31 mcr + * added KLIPS_ERROR and make sure that things work without CONFIG_KLIPS_REGRESS. + * + * Revision 1.29.6.2 2005/11/27 21:40:14 paul + * Pull down TTL fixes from head. this fixes "Unknown symbol sysctl_ip_default_ttl" + * in for klips as module. + * + * Revision 1.29.6.1 2005/08/12 16:24:18 ken + * Pull in NAT-T compile logic from HEAD + * + * Revision 1.29 2005/01/26 00:50:35 mcr + * adjustment of confusion of CONFIG_IPSEC_NAT vs CONFIG_KLIPS_NAT, + * and make sure that NAT_TRAVERSAL is set as well to match + * userspace compiles of code. + * + * Revision 1.28 2004/09/13 15:50:15 mcr + * spell NEED_INET properly, not NET_INET. + * + * Revision 1.27 2004/09/13 02:21:45 mcr + * always turn on IPIP mode. + * #define inet_protocol if necessary. + * + * Revision 1.26 2004/08/17 03:25:43 mcr + * freeswan->openswan. + * + * Revision 1.25 2004/07/10 19:08:41 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.24 2004/04/05 19:55:06 mcr + * Moved from linux/include/freeswan/ipsec_param.h,v + * + * Revision 1.23 2003/12/13 19:10:16 mcr + * refactored rcv and xmit code - same as FS 2.05. + * + * Revision 1.22 2003/10/31 02:27:05 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.21.4.1 2003/10/29 01:10:19 mcr + * elimited "struct sa_id" + * + * Revision 1.21 2003/04/03 17:38:18 rgb + * Centralised ipsec_kfree_skb and ipsec_dev_{get,put}. + * Change indentation for readability. + * + * Revision 1.20 2003/03/14 08:09:26 rgb + * Fixed up CONFIG_IPSEC_DYNDEV definitions. + * + * Revision 1.19 2003/01/30 02:31:43 rgb + * + * Rename SAref table macro names for clarity. + * + * Revision 1.18 2002/09/30 19:06:26 rgb + * Reduce default table to 16 bits width. + * + * Revision 1.17 2002/09/20 15:40:29 rgb + * Define switch to activate new SAref code. + * Prefix macros with "IPSEC_". + * Rework saref freelist. + * Restrict some bits to kernel context for use to klips utils. + * + * Revision 1.16 2002/09/20 05:00:31 rgb + * Define switch to divulge hmac keys for debugging. + * Added IPOPTIONS switch. + * + * Revision 1.15 2002/09/19 02:34:24 mcr + * define IPSEC_PROC_SUBDIRS if we are 2.4, and use that in ipsec_proc.c + * to decide if we are to create /proc/net/ipsec/. + * + * Revision 1.14 2002/08/30 01:20:54 mcr + * reorganized 2.0/2.2/2.4 procfs support macro so match + * 2.4 values/typedefs. + * + * Revision 1.13 2002/07/28 22:03:28 mcr + * added some documentation to SA_REF_* + * turned on fix for ESPIV attack, now that we have the attack code. + * + * Revision 1.12 2002/07/26 08:48:31 rgb + * Added SA ref table code. + * + * Revision 1.11 2002/07/23 02:57:45 rgb + * Define ARPHRD_VOID for < 2.4 kernels. + * + * Revision 1.10 2002/05/27 21:37:28 rgb + * Set the defaults sanely for those adventurous enough to try more than 1 + * digit of ipsec devices. + * + * Revision 1.9 2002/05/27 18:56:07 rgb + * Convert to dynamic ipsec device allocation. + * + * Revision 1.8 2002/04/24 07:36:47 mcr + * Moved from ./klips/net/ipsec/ipsec_param.h,v + * + * Revision 1.7 2002/04/20 00:12:25 rgb + * Added esp IV CBC attack fix, disabled. + * + * Revision 1.6 2002/01/29 02:11:42 mcr + * removal of kversions.h - sources that needed it now use ipsec_param.h. + * updating of IPv6 structures to match latest in6.h version. + * removed dead code from freeswan.h that also duplicated kversions.h + * code. + * + * Revision 1.5 2002/01/28 19:22:01 mcr + * by default, turn off LINEARIZE option + * (let kversions.h turn it on) + * + * Revision 1.4 2002/01/20 20:19:36 mcr + * renamed option to IP_FRAGMENT_LINEARIZE. + * + * Revision 1.3 2002/01/12 02:57:25 mcr + * first regression test causes acquire messages to be lost + * 100% of the time. This is to help testing of pluto. + * + * Revision 1.2 2001/11/26 09:16:14 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.1.2.3 2001/10/23 04:40:16 mcr + * added #define for DIVULGING session keys in debug output. + * + * Revision 1.1.2.2 2001/10/22 20:53:25 mcr + * added a define to control forcing of DES parity. + * + * Revision 1.1.2.1 2001/09/25 02:20:19 mcr + * many common kernel configuration questions centralized. + * more things remain that should be moved from freeswan.h. + * + * + * Local variables: + * c-file-style: "linux" + * End: + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_policy.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,217 @@ +#ifndef _IPSEC_POLICY_H +/* + * policy interface file between pluto and applications + * Copyright (C) 2003 Michael Richardson + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + * License for more details. + * + * RCSID $Id: ipsec_policy.h,v 1.7.6.1 2005/07/26 01:53:07 ken Exp $ + */ +#define _IPSEC_POLICY_H /* seen it, no need to see it again */ + + +/* + * this file defines an interface between an application (or rather an + * application library) and a key/policy daemon. It provides for inquiries + * as to the current state of a connected socket, as well as for general + * questions. + * + * In general, the interface is defined as a series of functional interfaces, + * and the policy messages should be internal. However, because this is in + * fact an ABI between pieces of the system that may get compiled and revised + * seperately, this ABI must be public and revision controlled. + * + * It is expected that the daemon will always support previous versions. + */ + +#define IPSEC_POLICY_MSG_REVISION (unsigned)200305061 + +enum ipsec_policy_command { + IPSEC_CMD_QUERY_FD = 1, + IPSEC_CMD_QUERY_HOSTPAIR = 2, + IPSEC_CMD_QUERY_DSTONLY = 3, +}; + +struct ipsec_policy_msg_head { + u_int32_t ipm_version; + u_int32_t ipm_msg_len; + u_int32_t ipm_msg_type; + u_int32_t ipm_msg_seq; +}; + +enum ipsec_privacy_quality { + IPSEC_PRIVACY_NONE = 0, + IPSEC_PRIVACY_INTEGRAL = 4, /* not private at all. AH-like */ + IPSEC_PRIVACY_UNKNOWN = 8, /* something is claimed, but details unavail */ + IPSEC_PRIVACY_ROT13 = 12, /* trivially breakable, i.e. 1DES */ + IPSEC_PRIVACY_GAK = 16, /* known eavesdroppers */ + IPSEC_PRIVACY_PRIVATE = 32, /* secure for at least a decade */ + IPSEC_PRIVACY_STRONG = 64, /* ridiculously secure */ + IPSEC_PRIVACY_TORTOISE = 192, /* even stronger, but very slow */ + IPSEC_PRIVACY_OTP = 224, /* some kind of *true* one time pad */ +}; + +enum ipsec_bandwidth_quality { + IPSEC_QOS_UNKNOWN = 0, /* unknown bandwidth */ + IPSEC_QOS_INTERACTIVE = 16, /* reasonably moderate jitter, moderate fast. + Good enough for telnet/ssh. */ + IPSEC_QOS_VOIP = 32, /* faster crypto, predicable jitter */ + IPSEC_QOS_FTP = 64, /* higher throughput crypto, perhaps hardware + offloaded, but latency/jitter may be bad */ + IPSEC_QOS_WIRESPEED = 128, /* expect to be able to fill your pipe */ +}; + +/* moved from programs/pluto/constants.h */ +/* IPsec AH transform values + * RFC2407 The Internet IP security Domain of Interpretation for ISAKMP 4.4.3 + * and in http://www.iana.org/assignments/isakmp-registry + */ +enum ipsec_authentication_algo { + AH_MD5=2, + AH_SHA=3, + AH_DES=4, + AH_SHA2_256=5, + AH_SHA2_384=6, + AH_SHA2_512=7 +}; + +/* IPsec ESP transform values + * RFC2407 The Internet IP security Domain of Interpretation for ISAKMP 4.4.4 + * and from http://www.iana.org/assignments/isakmp-registry + */ + +enum ipsec_cipher_algo { + ESP_reserved=0, + ESP_DES_IV64=1, + ESP_DES=2, + ESP_3DES=3, + ESP_RC5=4, + ESP_IDEA=5, + ESP_CAST=6, + ESP_BLOWFISH=7, + ESP_3IDEA=8, + ESP_DES_IV32=9, + ESP_RC4=10, + ESP_NULL=11, + ESP_AES=12, /* 128 bit AES */ +}; + +/* IPCOMP transform values + * RFC2407 The Internet IP security Domain of Interpretation for ISAKMP 4.4.5 + */ + +enum ipsec_comp_algo { + IPCOMP_OUI= 1, + IPCOMP_DEFLATE= 2, + IPCOMP_LZS= 3, + IPCOMP_V42BIS= 4 +}; + +/* Identification type values + * RFC 2407 The Internet IP security Domain of Interpretation for ISAKMP 4.6.2.1 + */ + +enum ipsec_id_type { + ID_IMPOSSIBLE= (-2), /* private to Pluto */ + ID_MYID= (-1), /* private to Pluto */ + ID_NONE= 0, /* private to Pluto */ + ID_IPV4_ADDR= 1, + ID_FQDN= 2, + ID_USER_FQDN= 3, + ID_IPV4_ADDR_SUBNET= 4, + ID_IPV6_ADDR= 5, + ID_IPV6_ADDR_SUBNET= 6, + ID_IPV4_ADDR_RANGE= 7, + ID_IPV6_ADDR_RANGE= 8, + ID_DER_ASN1_DN= 9, + ID_DER_ASN1_GN= 10, + ID_KEY_ID= 11 +}; + +/* Certificate type values + * RFC 2408 ISAKMP, chapter 3.9 + */ +enum ipsec_cert_type { + CERT_NONE= 0, /* none, or guess from file contents */ + CERT_PKCS7_WRAPPED_X509= 1, /* self-signed certificate from disk */ + CERT_PGP= 2, + CERT_DNS_SIGNED_KEY= 3, /* KEY RR from DNS */ + CERT_X509_SIGNATURE= 4, + CERT_X509_KEY_EXCHANGE= 5, + CERT_KERBEROS_TOKENS= 6, + CERT_CRL= 7, + CERT_ARL= 8, + CERT_SPKI= 9, + CERT_X509_ATTRIBUTE= 10, + CERT_RAW_RSA= 11, /* raw RSA from config file */ +}; + +/* a SIG record in ASCII */ +struct ipsec_dns_sig { + char fqdn[256]; + char dns_sig[768]; /* empty string if not signed */ +}; + +struct ipsec_raw_key { + char id_name[256]; + char fs_keyid[8]; +}; + +struct ipsec_identity { + enum ipsec_id_type ii_type; + enum ipsec_cert_type ii_format; + union { + struct ipsec_dns_sig ipsec_dns_signed; + /* some thing for PGP */ + /* some thing for PKIX */ + struct ipsec_raw_key ipsec_raw_key; + } ii_credential; +}; + +#define IPSEC_MAX_CREDENTIALS 32 + +struct ipsec_policy_cmd_query { + struct ipsec_policy_msg_head head; + + /* Query section */ + ip_address query_local; /* us */ + ip_address query_remote; /* them */ + u_int8_t proto; /* TCP, ICMP, etc. */ + u_short src_port, dst_port; + + /* Answer section */ + enum ipsec_privacy_quality strength; + enum ipsec_bandwidth_quality bandwidth; + enum ipsec_authentication_algo auth_detail; + enum ipsec_cipher_algo esp_detail; + enum ipsec_comp_algo comp_detail; + + int credential_count; + + struct ipsec_identity credentials[IPSEC_MAX_CREDENTIALS]; +}; + +#define IPSEC_POLICY_SOCKET "/var/run/pluto/pluto.info" + +/* prototypes */ +extern err_t ipsec_policy_lookup(int fd, struct ipsec_policy_cmd_query *result); +extern err_t ipsec_policy_init(void); +extern err_t ipsec_policy_final(void); +extern err_t ipsec_policy_readmsg(int policysock, + unsigned char *buf, size_t buflen); +extern err_t ipsec_policy_sendrecv(unsigned char *buf, size_t buflen); +extern err_t ipsec_policy_cgilookup(struct ipsec_policy_cmd_query *result); + + +extern const char *ipsec_policy_version_code(void); +extern const char *ipsec_policy_version_string(void); + +#endif /* _IPSEC_POLICY_H */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_proto.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,199 @@ +/* + * @(#) prototypes for FreeSWAN functions + * + * Copyright (C) 2001 Richard Guy Briggs + * and Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_proto.h,v 1.14 2005/04/29 04:50:03 mcr Exp $ + * + */ + +#ifndef _IPSEC_PROTO_H_ + +#include "ipsec_param.h" + +/* + * This file is a kernel only file that declares prototypes for + * all intra-module function calls and global data structures. + * + * Include this file last. + * + */ + +/* forward references */ +enum ipsec_direction; +enum ipsec_life_type; +struct ipsec_lifetime64; +struct ident; +struct sockaddr_encap; +struct ipsec_sa; + +/* ipsec_init.c */ +extern struct prng ipsec_prng; + +/* ipsec_sa.c */ +extern struct ipsec_sa *ipsec_sadb_hash[SADB_HASHMOD]; +extern spinlock_t tdb_lock; +extern int ipsec_sadb_init(void); +extern int ipsec_sadb_cleanup(__u8); + +extern struct ipsec_sa *ipsec_sa_alloc(int*error); + + +extern struct ipsec_sa *ipsec_sa_getbyid(ip_said *); +extern int ipsec_sa_put(struct ipsec_sa *); +extern /* void */ int ipsec_sa_del(struct ipsec_sa *); +extern /* void */ int ipsec_sa_delchain(struct ipsec_sa *); +extern /* void */ int ipsec_sa_add(struct ipsec_sa *); + +extern int ipsec_sa_init(struct ipsec_sa *ipsp); +extern int ipsec_sa_wipe(struct ipsec_sa *ipsp); + +/* debug declarations */ + +/* ipsec_proc.c */ +extern int ipsec_proc_init(void); +extern void ipsec_proc_cleanup(void); + +/* ipsec_rcv.c */ +extern int ipsec_rcv(struct sk_buff *skb); +extern int klips26_rcv_encap(struct sk_buff *skb, __u16 encap_type); + +/* ipsec_xmit.c */ +struct ipsec_xmit_state; +extern enum ipsec_xmit_value ipsec_xmit_sanity_check_dev(struct ipsec_xmit_state *ixs); +extern enum ipsec_xmit_value ipsec_xmit_sanity_check_skb(struct ipsec_xmit_state *ixs); +extern void ipsec_print_ip(struct iphdr *ip); + + + +/* ipsec_radij.c */ +extern int ipsec_makeroute(struct sockaddr_encap *ea, + struct sockaddr_encap *em, + ip_said said, + uint32_t pid, + struct sk_buff *skb, + struct ident *ident_s, + struct ident *ident_d); + +extern int ipsec_breakroute(struct sockaddr_encap *ea, + struct sockaddr_encap *em, + struct sk_buff **first, + struct sk_buff **last); + +int ipsec_radijinit(void); +int ipsec_cleareroutes(void); +int ipsec_radijcleanup(void); + +/* ipsec_life.c */ +extern enum ipsec_life_alive ipsec_lifetime_check(struct ipsec_lifetime64 *il64, + const char *lifename, + const char *saname, + enum ipsec_life_type ilt, + enum ipsec_direction idir, + struct ipsec_sa *ips); + + +extern int ipsec_lifetime_format(char *buffer, + int buflen, + char *lifename, + enum ipsec_life_type timebaselife, + struct ipsec_lifetime64 *lifetime); + +extern void ipsec_lifetime_update_hard(struct ipsec_lifetime64 *lifetime, + __u64 newvalue); + +extern void ipsec_lifetime_update_soft(struct ipsec_lifetime64 *lifetime, + __u64 newvalue); + +/* ipsec_snprintf.c */ +extern int ipsec_snprintf(char * buf, ssize_t size, const char *fmt, ...); +extern void ipsec_dmp_block(char *s, caddr_t bb, int len); + + +/* ipsec_alg.c */ +extern int ipsec_alg_init(void); + + +#ifdef CONFIG_KLIPS_DEBUG + +extern int debug_xform; +extern int debug_eroute; +extern int debug_spi; +extern int debug_netlink; + +#endif /* CONFIG_KLIPS_DEBUG */ + + + + +#define _IPSEC_PROTO_H +#endif /* _IPSEC_PROTO_H_ */ + +/* + * $Log: ipsec_proto.h,v $ + * Revision 1.14 2005/04/29 04:50:03 mcr + * prototypes for xmit and alg code. + * + * Revision 1.13 2005/04/17 03:46:07 mcr + * added prototypes for ipsec_rcv() routines. + * + * Revision 1.12 2005/04/14 20:28:37 mcr + * added additional prototypes. + * + * Revision 1.11 2005/04/14 01:16:28 mcr + * add prototypes for snprintf. + * + * Revision 1.10 2005/04/13 22:47:28 mcr + * make sure that forward references are available. + * + * Revision 1.9 2004/07/10 19:08:41 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.8 2004/04/05 19:55:06 mcr + * Moved from linux/include/freeswan/ipsec_proto.h,v + * + * Revision 1.7 2003/10/31 02:27:05 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.6.30.1 2003/10/29 01:10:19 mcr + * elimited "struct sa_id" + * + * Revision 1.6 2002/05/23 07:13:48 rgb + * Added ipsec_sa_put() for releasing an ipsec_sa refcount. + * + * Revision 1.5 2002/05/14 02:36:40 rgb + * Converted reference from ipsec_sa_put to ipsec_sa_add to avoid confusion + * with "put" usage in the kernel. + * + * Revision 1.4 2002/04/24 07:36:47 mcr + * Moved from ./klips/net/ipsec/ipsec_proto.h,v + * + * Revision 1.3 2002/04/20 00:12:25 rgb + * Added esp IV CBC attack fix, disabled. + * + * Revision 1.2 2001/11/26 09:16:15 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.1.2.1 2001/09/25 02:21:01 mcr + * ipsec_proto.h created to keep prototypes rather than deal with + * cyclic dependancies of structures and prototypes in .h files. + * + * + * + * Local variables: + * c-file-style: "linux" + * End: + * + */ + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_radij.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,179 @@ +/* + * @(#) Definitions relevant to the IPSEC <> radij tree interfacing + * Copyright (C) 1996, 1997 John Ioannidis. + * Copyright (C) 1998, 1999, 2000, 2001 Richard Guy Briggs. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_radij.h,v 1.22 2004/07/10 19:08:41 mcr Exp $ + */ + +#ifndef _IPSEC_RADIJ_H + +#include + +int ipsec_walk(char *); + +int ipsec_rj_walker_procprint(struct radij_node *, void *); +int ipsec_rj_walker_delete(struct radij_node *, void *); + +/* This structure is used to pass information between + * ipsec_eroute_get_info and ipsec_rj_walker_procprint + * (through rj_walktree) and between calls of ipsec_rj_walker_procprint. + */ +struct wsbuf +{ + /* from caller of ipsec_eroute_get_info: */ + char *const buffer; /* start of buffer provided */ + const int length; /* length of buffer provided */ + const off_t offset; /* file position of first character of interest */ + /* accumulated by ipsec_rj_walker_procprint: */ + int len; /* number of character filled into buffer */ + off_t begin; /* file position contained in buffer[0] (<=offset) */ +}; + +extern struct radij_node_head *rnh; +extern spinlock_t eroute_lock; + +struct eroute * ipsec_findroute(struct sockaddr_encap *); + +#define O1(x) (int)(((x)>>24)&0xff) +#define O2(x) (int)(((x)>>16)&0xff) +#define O3(x) (int)(((x)>>8)&0xff) +#define O4(x) (int)(((x))&0xff) + +#ifdef CONFIG_KLIPS_DEBUG +extern int debug_radij; +void rj_dumptrees(void); + +#define DB_RJ_DUMPTREES 0x0001 +#define DB_RJ_FINDROUTE 0x0002 +#endif /* CONFIG_KLIPS_DEBUG */ + +#define _IPSEC_RADIJ_H +#endif + +/* + * $Log: ipsec_radij.h,v $ + * Revision 1.22 2004/07/10 19:08:41 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.21 2004/04/29 11:06:42 ken + * Last bits from 2.06 procfs updates + * + * Revision 1.20 2004/04/06 02:49:08 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.19 2004/04/05 19:55:06 mcr + * Moved from linux/include/freeswan/ipsec_radij.h,v + * + * Revision 1.18 2002/04/24 07:36:47 mcr + * Moved from ./klips/net/ipsec/ipsec_radij.h,v + * + * Revision 1.17 2001/11/26 09:23:49 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.16.2.1 2001/09/25 02:21:17 mcr + * ipsec_proto.h created to keep prototypes rather than deal with + * cyclic dependancies of structures and prototypes in .h files. + * + * Revision 1.16 2001/09/15 16:24:04 rgb + * Re-inject first and last HOLD packet when an eroute REPLACE is done. + * + * Revision 1.15 2001/09/14 16:58:37 rgb + * Added support for storing the first and last packets through a HOLD. + * + * Revision 1.14 2001/09/08 21:13:32 rgb + * Added pfkey ident extension support for ISAKMPd. (NetCelo) + * + * Revision 1.13 2001/06/14 19:35:09 rgb + * Update copyright date. + * + * Revision 1.12 2001/05/27 06:12:11 rgb + * Added structures for pid, packet count and last access time to eroute. + * Added packet count to beginning of /proc/net/ipsec_eroute. + * + * Revision 1.11 2000/09/08 19:12:56 rgb + * Change references from DEBUG_IPSEC to CONFIG_IPSEC_DEBUG. + * + * Revision 1.10 1999/11/17 15:53:39 rgb + * Changed all occurrences of #include "../../../lib/freeswan.h" + * to #include which works due to -Ilibfreeswan in the + * klips/net/ipsec/Makefile. + * + * Revision 1.9 1999/10/01 00:01:23 rgb + * Added eroute structure locking. + * + * Revision 1.8 1999/04/11 00:28:59 henry + * GPL boilerplate + * + * Revision 1.7 1999/04/06 04:54:26 rgb + * Fix/Add RCSID Id: and Log: bits to make PHMDs happy. This includes + * patch shell fixes. + * + * Revision 1.6 1999/01/22 06:23:26 rgb + * Cruft clean-out. + * + * Revision 1.5 1998/10/25 02:42:08 rgb + * Change return type on ipsec_breakroute and ipsec_makeroute and add an + * argument to be able to transmit more infomation about errors. + * + * Revision 1.4 1998/10/19 14:44:29 rgb + * Added inclusion of freeswan.h. + * sa_id structure implemented and used: now includes protocol. + * + * Revision 1.3 1998/07/28 00:03:31 rgb + * Comment out temporary inet_nto4u() kluge. + * + * Revision 1.2 1998/07/14 18:22:00 rgb + * Add function to clear the eroute table. + * + * Revision 1.1 1998/06/18 21:27:49 henry + * move sources from klips/src to klips/net/ipsec, to keep stupid + * kernel-build scripts happier in the presence of symlinks + * + * Revision 1.5 1998/05/25 20:30:38 rgb + * Remove temporary ipsec_walk, rj_deltree and rj_delnodes functions. + * + * Rename ipsec_rj_walker (ipsec_walk) to ipsec_rj_walker_procprint and + * add ipsec_rj_walker_delete. + * + * Revision 1.4 1998/05/21 13:02:56 rgb + * Imported definitions from ipsec_radij.c and radij.c to support /proc 3k + * limit fix. + * + * Revision 1.3 1998/04/21 21:29:09 rgb + * Rearrange debug switches to change on the fly debug output from user + * space. Only kernel changes checked in at this time. radij.c was also + * changed to temporarily remove buggy debugging code in rj_delete causing + * an OOPS and hence, netlink device open errors. + * + * Revision 1.2 1998/04/14 17:30:39 rgb + * Fix up compiling errors for radij tree memory reclamation. + * + * Revision 1.1 1998/04/09 03:06:10 henry + * sources moved up from linux/net/ipsec + * + * Revision 1.1.1.1 1998/04/08 05:35:04 henry + * RGB's ipsec-0.8pre2.tar.gz ipsec-0.8 + * + * Revision 0.4 1997/01/15 01:28:15 ji + * No changes. + * + * Revision 0.3 1996/11/20 14:39:04 ji + * Minor cleanups. + * Rationalized debugging code. + * + * Revision 0.2 1996/11/02 00:18:33 ji + * First limited release. + * + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_rcv.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,199 @@ +/* + * + * Copyright (C) 1996, 1997 John Ioannidis. + * Copyright (C) 1998, 1999, 2000, 2001 Richard Guy Briggs. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_rcv.h,v 1.28.2.2 2006/10/06 21:39:26 paul Exp $ + */ + +#ifndef IPSEC_RCV_H +#define IPSEC_RCV_H + +#include "openswan/ipsec_auth.h" + +#define DB_RX_PKTRX 0x0001 +#define DB_RX_PKTRX2 0x0002 +#define DB_RX_DMP 0x0004 +#define DB_RX_IPSA 0x0010 +#define DB_RX_XF 0x0020 +#define DB_RX_IPAD 0x0040 +#define DB_RX_INAU 0x0080 +#define DB_RX_OINFO 0x0100 +#define DB_RX_OINFO2 0x0200 +#define DB_RX_OH 0x0400 +#define DB_RX_REPLAY 0x0800 + +#ifdef __KERNEL__ +/* struct options; */ + +#define __NO_VERSION__ +#ifndef AUTOCONF_INCLUDED +#include /* for CONFIG_IP_FORWARD */ +#endif +#ifdef CONFIG_MODULES +#include +#endif +#include +#include + +#define IPSEC_BIRTH_TEMPLATE_MAXLEN 256 + +struct ipsec_birth_reply { + int packet_template_len; + unsigned char packet_template[IPSEC_BIRTH_TEMPLATE_MAXLEN]; +}; + +extern struct ipsec_birth_reply ipsec_ipv4_birth_packet; +extern struct ipsec_birth_reply ipsec_ipv6_birth_packet; + +enum ipsec_rcv_value { + IPSEC_RCV_LASTPROTO=1, + IPSEC_RCV_OK=0, + IPSEC_RCV_BADPROTO=-1, + IPSEC_RCV_BADLEN=-2, + IPSEC_RCV_ESP_BADALG=-3, + IPSEC_RCV_3DES_BADBLOCKING=-4, + IPSEC_RCV_ESP_DECAPFAIL=-5, + IPSEC_RCV_DECAPFAIL=-6, + IPSEC_RCV_SAIDNOTFOUND=-7, + IPSEC_RCV_IPCOMPALONE=-8, + IPSEC_RCV_IPCOMPFAILED=-10, + IPSEC_RCV_SAIDNOTLIVE=-11, + IPSEC_RCV_FAILEDINBOUND=-12, + IPSEC_RCV_LIFETIMEFAILED=-13, + IPSEC_RCV_BADAUTH=-14, + IPSEC_RCV_REPLAYFAILED=-15, + IPSEC_RCV_AUTHFAILED=-16, + IPSEC_RCV_REPLAYROLLED=-17, + IPSEC_RCV_BAD_DECRYPT=-18 +}; + +struct ipsec_rcv_state { + struct sk_buff *skb; + struct net_device_stats *stats; + struct iphdr *ipp; /* the IP header */ + struct ipsec_sa *ipsp; /* current SA being processed */ + int len; /* length of packet */ + int ilen; /* length of inner payload (-authlen) */ + int authlen; /* how big is the auth data at end */ + int hard_header_len; /* layer 2 size */ + int iphlen; /* how big is IP header */ + struct auth_alg *authfuncs; + ip_said said; + char sa[SATOT_BUF]; + size_t sa_len; + __u8 next_header; + __u8 hash[AH_AMAX]; + char ipsaddr_txt[ADDRTOA_BUF]; + char ipdaddr_txt[ADDRTOA_BUF]; + __u8 *octx; + __u8 *ictx; + int ictx_len; + int octx_len; + union { + struct { + struct esphdr *espp; + } espstuff; + struct { + struct ahhdr *ahp; + } ahstuff; + struct { + struct ipcomphdr *compp; + } ipcompstuff; + } protostuff; +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL + __u8 natt_type; + __u16 natt_sport; + __u16 natt_dport; + int natt_len; +#endif +}; + +extern int +#ifdef PROTO_HANDLER_SINGLE_PARM +ipsec_rcv(struct sk_buff *skb); +#else /* PROTO_HANDLER_SINGLE_PARM */ +ipsec_rcv(struct sk_buff *skb, + unsigned short xlen); +#endif /* PROTO_HANDLER_SINGLE_PARM */ + +#ifdef CONFIG_KLIPS_DEBUG +extern int debug_rcv; +#define ipsec_rcv_dmp(_x,_y, _z) if (debug_rcv && sysctl_ipsec_debug_verbose) ipsec_dmp_block(_x,_y,_z) +#else +#define ipsec_rcv_dmp(_x,_y, _z) do {} while(0) +#endif /* CONFIG_KLIPS_DEBUG */ + +extern int sysctl_ipsec_inbound_policy_check; +#endif /* __KERNEL__ */ + +extern int klips26_rcv_encap(struct sk_buff *skb, __u16 encap_type); + + +#endif /* IPSEC_RCV_H */ + +/* + * $Log: ipsec_rcv.h,v $ + * Revision 1.28.2.2 2006/10/06 21:39:26 paul + * Fix for 2.6.18+ only include linux/config.h if AUTOCONF_INCLUDED is not + * set. This is defined through autoconf.h which is included through the + * linux kernel build macros. + * + * Revision 1.28.2.1 2006/07/10 15:52:20 paul + * Fix for bug #642 by Bart Trojanowski + * + * Revision 1.28 2005/05/11 00:59:45 mcr + * do not call debug routines if !defined KLIPS_DEBUG. + * + * Revision 1.27 2005/04/29 04:59:46 mcr + * use ipsec_dmp_block. + * + * Revision 1.26 2005/04/13 22:48:35 mcr + * added comments, and removed some log. + * removed Linux 2.0 support. + * + * Revision 1.25 2005/04/08 18:25:37 mcr + * prototype klips26 encap receive function + * + * Revision 1.24 2004/08/20 21:45:37 mcr + * CONFIG_KLIPS_NAT_TRAVERSAL is not used in an attempt to + * be 26sec compatible. But, some defines where changed. + * + * Revision 1.23 2004/08/03 18:17:40 mcr + * in 2.6, use "net_device" instead of #define device->net_device. + * this probably breaks 2.0 compiles. + * + * Revision 1.22 2004/07/10 19:08:41 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.21 2004/04/06 02:49:08 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.20 2004/04/05 19:55:06 mcr + * Moved from linux/include/freeswan/ipsec_rcv.h,v + * + * Revision 1.19 2003/12/15 18:13:09 mcr + * when compiling with NAT traversal, don't assume that the + * kernel has been patched, unless CONFIG_IPSEC_NAT_NON_ESP + * is set. + * + * history elided 2005-04-12. + * + * Local Variables: + * c-basic-offset:8 + * c-style:linux + * End: + * + */ + + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_sa.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,355 @@ +/* + * @(#) Definitions of IPsec Security Association (ipsec_sa) + * + * Copyright (C) 2001, 2002, 2003 + * Richard Guy Briggs + * and Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_sa.h,v 1.23 2005/05/11 01:18:59 mcr Exp $ + * + * This file derived from ipsec_xform.h on 2001/9/18 by mcr. + * + */ + +/* + * This file describes the IPsec Security Association Structure. + * + * This structure keeps track of a single transform that may be done + * to a set of packets. It can describe applying the transform or + * apply the reverse. (e.g. compression vs expansion). However, it + * only describes one at a time. To describe both, two structures would + * be used, but since the sides of the transform are performed + * on different machines typically it is usual to have only one side + * of each association. + * + */ + +#ifndef _IPSEC_SA_H_ + +#ifdef __KERNEL__ +#include "openswan/ipsec_stats.h" +#include "openswan/ipsec_life.h" +#include "openswan/ipsec_eroute.h" +#endif /* __KERNEL__ */ +#include "openswan/ipsec_param.h" + +#include "pfkeyv2.h" + + +/* SAs are held in a table. + * Entries in this table are referenced by IPsecSAref_t values. + * IPsecSAref_t values are conceptually subscripts. Because + * we want to allocate the table piece-meal, the subscripting + * is implemented with two levels, a bit like paged virtual memory. + * This representation mechanism is known as an Iliffe Vector. + * + * The Main table (AKA the refTable) consists of 2^IPSEC_SA_REF_MAINTABLE_IDX_WIDTH + * pointers to subtables. + * Each subtable has 2^IPSEC_SA_REF_SUBTABLE_IDX_WIDTH entries, each of which + * is a pointer to an SA. + * + * An IPsecSAref_t contains either an exceptional value (signified by the + * high-order bit being on) or a reference to a table entry. A table entry + * reference has the subtable subscript in the low-order + * IPSEC_SA_REF_SUBTABLE_IDX_WIDTH bits and the Main table subscript + * in the next lowest IPSEC_SA_REF_MAINTABLE_IDX_WIDTH bits. + * + * The Maintable entry for an IPsecSAref_t x, a pointer to its subtable, is + * IPsecSAref2table(x). It is of type struct IPsecSArefSubTable *. + * + * The pointer to the SA for x is IPsecSAref2SA(x). It is of type + * struct ipsec_sa*. The macro definition clearly shows the two-level + * access needed to find the SA pointer. + * + * The Maintable is allocated when IPsec is initialized. + * Each subtable is allocated when needed, but the first is allocated + * when IPsec is initialized. + * + * IPsecSAref_t is designed to be smaller than an NFmark so that + * they can be stored in NFmarks and still leave a few bits for other + * purposes. The spare bits are in the low order of the NFmark + * but in the high order of the IPsecSAref_t, so conversion is required. + * We pick the upper bits of NFmark on the theory that they are less likely to + * interfere with more pedestrian uses of nfmark. + */ + + +typedef unsigned short int IPsecRefTableUnusedCount; + +#define IPSEC_SA_REF_TABLE_NUM_ENTRIES (1 << IPSEC_SA_REF_TABLE_IDX_WIDTH) + +#ifdef __KERNEL__ +#if ((IPSEC_SA_REF_TABLE_IDX_WIDTH - (1 + IPSEC_SA_REF_MAINTABLE_IDX_WIDTH)) < 0) +#error "IPSEC_SA_REF_TABLE_IDX_WIDTH("IPSEC_SA_REF_TABLE_IDX_WIDTH") MUST be < 1 + IPSEC_SA_REF_MAINTABLE_IDX_WIDTH("IPSEC_SA_REF_MAINTABLE_IDX_WIDTH")" +#endif + +#define IPSEC_SA_REF_SUBTABLE_IDX_WIDTH (IPSEC_SA_REF_TABLE_IDX_WIDTH - IPSEC_SA_REF_MAINTABLE_IDX_WIDTH) + +#define IPSEC_SA_REF_MAINTABLE_NUM_ENTRIES (1 << IPSEC_SA_REF_MAINTABLE_IDX_WIDTH) +#define IPSEC_SA_REF_SUBTABLE_NUM_ENTRIES (1 << IPSEC_SA_REF_SUBTABLE_IDX_WIDTH) + +#ifdef CONFIG_NETFILTER +#define IPSEC_SA_REF_HOST_FIELD(x) ((struct sk_buff*)(x))->nfmark +#define IPSEC_SA_REF_HOST_FIELD_TYPE typeof(IPSEC_SA_REF_HOST_FIELD(NULL)) +#else /* CONFIG_NETFILTER */ +/* just make it work for now, it doesn't matter, since there is no nfmark */ +#define IPSEC_SA_REF_HOST_FIELD_TYPE unsigned long +#endif /* CONFIG_NETFILTER */ +#define IPSEC_SA_REF_HOST_FIELD_WIDTH (8 * sizeof(IPSEC_SA_REF_HOST_FIELD_TYPE)) +#define IPSEC_SA_REF_FIELD_WIDTH (8 * sizeof(IPsecSAref_t)) + +#define IPSEC_SA_REF_MASK (IPSEC_SAREF_NULL >> (IPSEC_SA_REF_FIELD_WIDTH - IPSEC_SA_REF_TABLE_IDX_WIDTH)) +#define IPSEC_SA_REF_TABLE_MASK ((IPSEC_SAREF_NULL >> (IPSEC_SA_REF_FIELD_WIDTH - IPSEC_SA_REF_MAINTABLE_IDX_WIDTH)) << IPSEC_SA_REF_SUBTABLE_IDX_WIDTH) +#define IPSEC_SA_REF_ENTRY_MASK (IPSEC_SAREF_NULL >> (IPSEC_SA_REF_FIELD_WIDTH - IPSEC_SA_REF_SUBTABLE_IDX_WIDTH)) + +#define IPsecSAref2table(x) (((x) & IPSEC_SA_REF_TABLE_MASK) >> IPSEC_SA_REF_SUBTABLE_IDX_WIDTH) +#define IPsecSAref2entry(x) ((x) & IPSEC_SA_REF_ENTRY_MASK) +#define IPsecSArefBuild(x,y) (((x) << IPSEC_SA_REF_SUBTABLE_IDX_WIDTH) + (y)) + +#define IPsecSAref2SA(x) (ipsec_sadb.refTable[IPsecSAref2table(x)]->entry[IPsecSAref2entry(x)]) +#define IPsecSA2SAref(x) ((x)->ips_ref) + +#define EMT_INBOUND 0x01 /* SA direction, 1=inbound */ + +/* 'struct ipsec_sa' should be 64bit aligned when allocated. */ +struct ipsec_sa +{ + IPsecSAref_t ips_ref; /* reference table entry number */ + atomic_t ips_refcount; /* reference count for this struct */ + struct ipsec_sa *ips_hnext; /* next in hash chain */ + struct ipsec_sa *ips_inext; /* pointer to next xform */ + struct ipsec_sa *ips_onext; /* pointer to prev xform */ + + struct ifnet *ips_rcvif; /* related rcv encap interface */ + + ip_said ips_said; /* SA ID */ + + __u32 ips_seq; /* seq num of msg that initiated this SA */ + __u32 ips_pid; /* PID of process that initiated this SA */ + __u8 ips_authalg; /* auth algorithm for this SA */ + __u8 ips_encalg; /* enc algorithm for this SA */ + + struct ipsec_stats ips_errs; + + __u8 ips_replaywin; /* replay window size */ + enum sadb_sastate ips_state; /* state of SA */ + __u32 ips_replaywin_lastseq; /* last pkt sequence num */ + __u64 ips_replaywin_bitmap; /* bitmap of received pkts */ + __u32 ips_replaywin_maxdiff; /* max pkt sequence difference */ + + __u32 ips_flags; /* generic xform flags */ + + + struct ipsec_lifetimes ips_life; /* lifetime records */ + + /* selector information */ + __u8 ips_transport_protocol; /* protocol for this SA, if ports are involved */ + struct sockaddr*ips_addr_s; /* src sockaddr */ + struct sockaddr*ips_addr_d; /* dst sockaddr */ + struct sockaddr*ips_addr_p; /* proxy sockaddr */ + __u16 ips_addr_s_size; + __u16 ips_addr_d_size; + __u16 ips_addr_p_size; + ip_address ips_flow_s; + ip_address ips_flow_d; + ip_address ips_mask_s; + ip_address ips_mask_d; + + __u16 ips_key_bits_a; /* size of authkey in bits */ + __u16 ips_auth_bits; /* size of authenticator in bits */ + __u16 ips_key_bits_e; /* size of enckey in bits */ + __u16 ips_iv_bits; /* size of IV in bits */ + __u8 ips_iv_size; + __u16 ips_key_a_size; + __u16 ips_key_e_size; + + caddr_t ips_key_a; /* authentication key */ + caddr_t ips_key_e; /* encryption key */ + caddr_t ips_iv; /* Initialisation Vector */ + + struct ident ips_ident_s; /* identity src */ + struct ident ips_ident_d; /* identity dst */ + + /* these are included even if CONFIG_KLIPS_IPCOMP is off */ + __u16 ips_comp_adapt_tries; /* ipcomp self-adaption tries */ + __u16 ips_comp_adapt_skip; /* ipcomp self-adaption to-skip */ + __u64 ips_comp_ratio_cbytes; /* compressed bytes */ + __u64 ips_comp_ratio_dbytes; /* decompressed (or uncompressed) bytes */ + + /* these are included even if CONFIG_IPSEC_NAT_TRAVERSAL is off */ + __u8 ips_natt_type; + __u8 ips_natt_reserved[3]; + __u16 ips_natt_sport; + __u16 ips_natt_dport; + + struct sockaddr *ips_natt_oa; + __u16 ips_natt_oa_size; + __u16 ips_natt_reserved2; + +#if 0 + __u32 ips_sens_dpd; + __u8 ips_sens_sens_level; + __u8 ips_sens_sens_len; + __u64* ips_sens_sens_bitmap; + __u8 ips_sens_integ_level; + __u8 ips_sens_integ_len; + __u64* ips_sens_integ_bitmap; +#endif + struct ipsec_alg_enc *ips_alg_enc; + struct ipsec_alg_auth *ips_alg_auth; + IPsecSAref_t ips_ref_rel; +}; + +struct IPsecSArefSubTable +{ + struct ipsec_sa* entry[IPSEC_SA_REF_SUBTABLE_NUM_ENTRIES]; +}; + +struct ipsec_sadb { + struct IPsecSArefSubTable* refTable[IPSEC_SA_REF_MAINTABLE_NUM_ENTRIES]; + IPsecSAref_t refFreeList[IPSEC_SA_REF_FREELIST_NUM_ENTRIES]; + int refFreeListHead; + int refFreeListTail; + IPsecSAref_t refFreeListCont; + IPsecSAref_t said_hash[SADB_HASHMOD]; + spinlock_t sadb_lock; +}; + +extern struct ipsec_sadb ipsec_sadb; + +extern int ipsec_SAref_recycle(void); +extern int ipsec_SArefSubTable_alloc(unsigned table); +extern int ipsec_saref_freelist_init(void); +extern int ipsec_sadb_init(void); +extern struct ipsec_sa *ipsec_sa_alloc(int*error); /* pass in error var by pointer */ +extern IPsecSAref_t ipsec_SAref_alloc(int*erorr); /* pass in error var by pointer */ +extern int ipsec_sa_free(struct ipsec_sa* ips); +extern int ipsec_sa_put(struct ipsec_sa *ips); +extern int ipsec_sa_add(struct ipsec_sa *ips); +extern int ipsec_sa_del(struct ipsec_sa *ips); +extern int ipsec_sa_delchain(struct ipsec_sa *ips); +extern int ipsec_sadb_cleanup(__u8 proto); +extern int ipsec_sadb_free(void); +extern int ipsec_sa_wipe(struct ipsec_sa *ips); +#endif /* __KERNEL__ */ + +enum ipsec_direction { + ipsec_incoming = 1, + ipsec_outgoing = 2 +}; + +#define _IPSEC_SA_H_ +#endif /* _IPSEC_SA_H_ */ + +/* + * $Log: ipsec_sa.h,v $ + * Revision 1.23 2005/05/11 01:18:59 mcr + * do not change structure based upon options, to avoid + * too many #ifdef. + * + * Revision 1.22 2005/04/14 01:17:09 mcr + * change sadb_state to an enum. + * + * Revision 1.21 2004/08/20 21:45:37 mcr + * CONFIG_KLIPS_NAT_TRAVERSAL is not used in an attempt to + * be 26sec compatible. But, some defines where changed. + * + * Revision 1.20 2004/07/10 19:08:41 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.19 2004/04/05 19:55:06 mcr + * Moved from linux/include/freeswan/ipsec_sa.h,v + * + * Revision 1.18 2004/04/05 19:41:05 mcr + * merged alg-branch code. + * + * Revision 1.17.2.1 2003/12/22 15:25:52 jjo + * . Merged algo-0.8.1-rc11-test1 into alg-branch + * + * Revision 1.17 2003/12/10 01:20:06 mcr + * NAT-traversal patches to KLIPS. + * + * Revision 1.16 2003/10/31 02:27:05 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.15.4.1 2003/10/29 01:10:19 mcr + * elimited "struct sa_id" + * + * Revision 1.15 2003/05/11 00:53:09 mcr + * IPsecSAref_t and macros were moved to freeswan.h. + * + * Revision 1.14 2003/02/12 19:31:55 rgb + * Fixed bug in "file seen" machinery. + * Updated copyright year. + * + * Revision 1.13 2003/01/30 02:31:52 rgb + * + * Re-wrote comments describing SAref system for accuracy. + * Rename SAref table macro names for clarity. + * Convert IPsecSAref_t from signed to unsigned to fix apparent SAref exhaustion bug. + * Transmit error code through to caller from callee for better diagnosis of problems. + * Enclose all macro arguments in parens to avoid any possible obscrure bugs. + * + * Revision 1.12 2002/10/07 18:31:19 rgb + * Change comment to reflect the flexible nature of the main and sub-table widths. + * Added a counter for the number of unused entries in each subtable. + * Further break up host field type macro to host field. + * Move field width sanity checks to ipsec_sa.c + * Define a mask for an entire saref. + * + * Revision 1.11 2002/09/20 15:40:33 rgb + * Re-write most of the SAref macros and types to eliminate any pointer references to Entrys. + * Fixed SAref/nfmark macros. + * Rework saref freeslist. + * Place all ipsec sadb globals into one struct. + * Restrict some bits to kernel context for use to klips utils. + * + * Revision 1.10 2002/09/20 05:00:34 rgb + * Update copyright date. + * + * Revision 1.9 2002/09/17 17:19:29 mcr + * make it compile even if there is no netfilter - we lost + * functionality, but it works, especially on 2.2. + * + * Revision 1.8 2002/07/28 22:59:53 mcr + * clarified/expanded one comment. + * + * Revision 1.7 2002/07/26 08:48:31 rgb + * Added SA ref table code. + * + * Revision 1.6 2002/05/31 17:27:48 rgb + * Comment fix. + * + * Revision 1.5 2002/05/27 18:55:03 rgb + * Remove final vistiges of tdb references via IPSEC_KLIPS1_COMPAT. + * + * Revision 1.4 2002/05/23 07:13:36 rgb + * Convert "usecount" to "refcount" to remove ambiguity. + * + * Revision 1.3 2002/04/24 07:36:47 mcr + * Moved from ./klips/net/ipsec/ipsec_sa.h,v + * + * Revision 1.2 2001/11/26 09:16:15 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.1.2.1 2001/09/25 02:24:58 mcr + * struct tdb -> struct ipsec_sa. + * sa(tdb) manipulation functions renamed and moved to ipsec_sa.c + * ipsec_xform.c removed. header file still contains useful things. + * + * + * Local variables: + * c-file-style: "linux" + * End: + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_sha1.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,79 @@ +/* + * RCSID $Id: ipsec_sha1.h,v 1.8 2004/04/05 19:55:07 mcr Exp $ + */ + +/* + * Here is the original comment from the distribution: + +SHA-1 in C +By Steve Reid +100% Public Domain + + * Adapted for use by the IPSEC code by John Ioannidis + */ + + +#ifndef _IPSEC_SHA1_H_ +#define _IPSEC_SHA1_H_ + +typedef struct +{ + __u32 state[5]; + __u32 count[2]; + __u8 buffer[64]; +} SHA1_CTX; + +void SHA1Transform(__u32 state[5], __u8 buffer[64]); +void SHA1Init(void *context); +void SHA1Update(void *context, unsigned char *data, __u32 len); +void SHA1Final(unsigned char digest[20], void *context); + + +#endif /* _IPSEC_SHA1_H_ */ + +/* + * $Log: ipsec_sha1.h,v $ + * Revision 1.8 2004/04/05 19:55:07 mcr + * Moved from linux/include/freeswan/ipsec_sha1.h,v + * + * Revision 1.7 2002/09/10 01:45:09 mcr + * changed type of MD5_CTX and SHA1_CTX to void * so that + * the function prototypes would match, and could be placed + * into a pointer to a function. + * + * Revision 1.6 2002/04/24 07:36:47 mcr + * Moved from ./klips/net/ipsec/ipsec_sha1.h,v + * + * Revision 1.5 1999/12/13 13:59:13 rgb + * Quick fix to argument size to Update bugs. + * + * Revision 1.4 1999/12/07 18:16:23 rgb + * Fixed comments at end of #endif lines. + * + * Revision 1.3 1999/04/06 04:54:27 rgb + * Fix/Add RCSID Id: and Log: bits to make PHMDs happy. This includes + * patch shell fixes. + * + * Revision 1.2 1998/11/30 13:22:54 rgb + * Rationalised all the klips kernel file headers. They are much shorter + * now and won't conflict under RH5.2. + * + * Revision 1.1 1998/06/18 21:27:50 henry + * move sources from klips/src to klips/net/ipsec, to keep stupid + * kernel-build scripts happier in the presence of symlinks + * + * Revision 1.2 1998/04/23 20:54:05 rgb + * Fixed md5 and sha1 include file nesting issues, to be cleaned up when + * verified. + * + * Revision 1.1 1998/04/09 03:04:21 henry + * sources moved up from linux/net/ipsec + * these two include files modified not to include others except in kernel + * + * Revision 1.1.1.1 1998/04/08 05:35:04 henry + * RGB's ipsec-0.8pre2.tar.gz ipsec-0.8 + * + * Revision 0.4 1997/01/15 01:28:15 ji + * New transform + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_stats.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,76 @@ +/* + * @(#) definition of ipsec_stats structure + * + * Copyright (C) 2001 Richard Guy Briggs + * and Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_stats.h,v 1.7 2005/04/14 01:17:45 mcr Exp $ + * + */ + +/* + * This file describes the errors/statistics that FreeSWAN collects. + */ + +#ifndef _IPSEC_STATS_H_ + +struct ipsec_stats { + __u32 ips_alg_errs; /* number of algorithm errors */ + __u32 ips_auth_errs; /* # of authentication errors */ + __u32 ips_encsize_errs; /* # of encryption size errors*/ + __u32 ips_encpad_errs; /* # of encryption pad errors*/ + __u32 ips_replaywin_errs; /* # of pkt sequence errors */ +}; + +#define _IPSEC_STATS_H_ +#endif /* _IPSEC_STATS_H_ */ + +/* + * $Log: ipsec_stats.h,v $ + * Revision 1.7 2005/04/14 01:17:45 mcr + * add prototypes for snprintf. + * + * Revision 1.6 2004/04/05 19:55:07 mcr + * Moved from linux/include/freeswan/ipsec_stats.h,v + * + * Revision 1.5 2004/04/05 19:41:05 mcr + * merged alg-branch code. + * + * Revision 1.4 2004/03/28 20:27:19 paul + * Included tested and confirmed fixes mcr made and dhr verified for + * snprint statements. Changed one other snprintf to use ipsec_snprintf + * so it wouldnt break compatibility with 2.0/2.2 kernels. Verified with + * dhr. (thanks dhr!) + * + * Revision 1.4 2004/03/24 01:58:31 mcr + * sprintf->snprintf for formatting into proc buffer. + * + * Revision 1.3.34.1 2004/04/05 04:30:46 mcr + * patches for alg-branch to compile/work with 2.x openswan + * + * Revision 1.3 2002/04/24 07:36:47 mcr + * Moved from ./klips/net/ipsec/ipsec_stats.h,v + * + * Revision 1.2 2001/11/26 09:16:16 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.1.2.1 2001/09/25 02:27:00 mcr + * statistics moved to seperate structure. + * + * + * + * Local variables: + * c-file-style: "linux" + * End: + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_tunnel.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,280 @@ +/* + * IPSEC tunneling code + * Copyright (C) 1996, 1997 John Ioannidis. + * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Richard Guy Briggs. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_tunnel.h,v 1.33 2005/06/04 16:06:05 mcr Exp $ + */ + + +#ifdef NET_21 +# define DEV_QUEUE_XMIT(skb, device, pri) {\ + skb->dev = device; \ + neigh_compat_output(skb); \ + /* skb->dst->output(skb); */ \ + } +# define ICMP_SEND(skb_in, type, code, info, dev) \ + icmp_send(skb_in, type, code, htonl(info)) +# define IP_SEND(skb, dev) \ + ip_send(skb); +#else /* NET_21 */ +# define DEV_QUEUE_XMIT(skb, device, pri) {\ + dev_queue_xmit(skb, device, pri); \ + } +# define ICMP_SEND(skb_in, type, code, info, dev) \ + icmp_send(skb_in, type, code, info, dev) +# define IP_SEND(skb, dev) \ + if(ntohs(iph->tot_len) > physmtu) { \ + ip_fragment(NULL, skb, dev, 0); \ + ipsec_kfree_skb(skb); \ + } else { \ + dev_queue_xmit(skb, dev, SOPRI_NORMAL); \ + } +#endif /* NET_21 */ + + +/* + * Heavily based on drivers/net/new_tunnel.c. Lots + * of ideas also taken from the 2.1.x version of drivers/net/shaper.c + */ + +struct ipsectunnelconf +{ + __u32 cf_cmd; + union + { + char cfu_name[12]; + } cf_u; +#define cf_name cf_u.cfu_name +}; + +#define IPSEC_SET_DEV (SIOCDEVPRIVATE) +#define IPSEC_DEL_DEV (SIOCDEVPRIVATE + 1) +#define IPSEC_CLR_DEV (SIOCDEVPRIVATE + 2) + +#ifdef __KERNEL__ +#include +#ifndef KERNEL_VERSION +# define KERNEL_VERSION(x,y,z) (((x)<<16)+((y)<<8)+(z)) +#endif +struct ipsecpriv +{ + struct sk_buff_head sendq; + struct net_device *dev; + struct wait_queue *wait_queue; + char locked; + int (*hard_start_xmit) (struct sk_buff *skb, + struct net_device *dev); + int (*hard_header) (struct sk_buff *skb, + struct net_device *dev, + unsigned short type, + void *daddr, + void *saddr, + unsigned len); +#ifdef NET_21 + int (*rebuild_header)(struct sk_buff *skb); +#else /* NET_21 */ + int (*rebuild_header)(void *buff, struct net_device *dev, + unsigned long raddr, struct sk_buff *skb); +#endif /* NET_21 */ + int (*set_mac_address)(struct net_device *dev, void *addr); +#ifndef NET_21 + void (*header_cache_bind)(struct hh_cache **hhp, struct net_device *dev, + unsigned short htype, __u32 daddr); +#endif /* !NET_21 */ + void (*header_cache_update)(struct hh_cache *hh, struct net_device *dev, unsigned char * haddr); + struct net_device_stats *(*get_stats)(struct net_device *dev); + struct net_device_stats mystats; + int mtu; /* What is the desired MTU? */ +}; + +extern char ipsec_tunnel_c_version[]; + +extern struct net_device *ipsecdevices[IPSEC_NUM_IF]; + +int ipsec_tunnel_init_devices(void); + +/* void */ int ipsec_tunnel_cleanup_devices(void); + +extern /* void */ int ipsec_init(void); + +extern int ipsec_tunnel_start_xmit(struct sk_buff *skb, struct net_device *dev); +extern struct net_device *ipsec_get_device(int inst); + +#ifdef CONFIG_KLIPS_DEBUG +extern int debug_tunnel; +extern int sysctl_ipsec_debug_verbose; +#endif /* CONFIG_KLIPS_DEBUG */ +#endif /* __KERNEL__ */ + +#ifdef CONFIG_KLIPS_DEBUG +#define DB_TN_INIT 0x0001 +#define DB_TN_PROCFS 0x0002 +#define DB_TN_XMIT 0x0010 +#define DB_TN_OHDR 0x0020 +#define DB_TN_CROUT 0x0040 +#define DB_TN_OXFS 0x0080 +#define DB_TN_REVEC 0x0100 +#define DB_TN_ENCAP 0x0200 +#endif /* CONFIG_KLIPS_DEBUG */ + +/* + * $Log: ipsec_tunnel.h,v $ + * Revision 1.33 2005/06/04 16:06:05 mcr + * better patch for nat-t rcv-device code. + * + * Revision 1.32 2005/05/21 03:18:35 mcr + * added additional debug flag tunnelling. + * + * Revision 1.31 2004/08/03 18:18:02 mcr + * in 2.6, use "net_device" instead of #define device->net_device. + * this probably breaks 2.0 compiles. + * + * Revision 1.30 2004/07/10 19:08:41 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.29 2004/04/05 19:55:07 mcr + * Moved from linux/include/freeswan/ipsec_tunnel.h,v + * + * Revision 1.28 2003/06/24 20:22:32 mcr + * added new global: ipsecdevices[] so that we can keep track of + * the ipsecX devices. They will be referenced with dev_hold(), + * so 2.2 may need this as well. + * + * Revision 1.27 2003/04/03 17:38:09 rgb + * Centralised ipsec_kfree_skb and ipsec_dev_{get,put}. + * + * Revision 1.26 2003/02/12 19:32:20 rgb + * Updated copyright year. + * + * Revision 1.25 2002/05/27 18:56:07 rgb + * Convert to dynamic ipsec device allocation. + * + * Revision 1.24 2002/04/24 07:36:48 mcr + * Moved from ./klips/net/ipsec/ipsec_tunnel.h,v + * + * Revision 1.23 2001/11/06 19:50:44 rgb + * Moved IP_SEND, ICMP_SEND, DEV_QUEUE_XMIT macros to ipsec_tunnel.h for + * use also by pfkey_v2_parser.c + * + * Revision 1.22 2001/09/15 16:24:05 rgb + * Re-inject first and last HOLD packet when an eroute REPLACE is done. + * + * Revision 1.21 2001/06/14 19:35:10 rgb + * Update copyright date. + * + * Revision 1.20 2000/09/15 11:37:02 rgb + * Merge in heavily modified Svenning Soerensen's + * IPCOMP zlib deflate code. + * + * Revision 1.19 2000/09/08 19:12:56 rgb + * Change references from DEBUG_IPSEC to CONFIG_IPSEC_DEBUG. + * + * Revision 1.18 2000/07/28 13:50:54 rgb + * Changed enet_statistics to net_device_stats and added back compatibility + * for pre-2.1.19. + * + * Revision 1.17 1999/11/19 01:12:15 rgb + * Purge unneeded proc_info prototypes, now that static linking uses + * dynamic proc_info registration. + * + * Revision 1.16 1999/11/18 18:51:00 rgb + * Changed all device registrations for static linking to + * dynamic to reduce the number and size of patches. + * + * Revision 1.15 1999/11/18 04:14:21 rgb + * Replaced all kernel version macros to shorter, readable form. + * Added CONFIG_PROC_FS compiler directives in case it is shut off. + * Added Marc Boucher's 2.3.25 proc patches. + * + * Revision 1.14 1999/05/25 02:50:10 rgb + * Fix kernel version macros for 2.0.x static linking. + * + * Revision 1.13 1999/05/25 02:41:06 rgb + * Add ipsec_klipsdebug support for static linking. + * + * Revision 1.12 1999/05/05 22:02:32 rgb + * Add a quick and dirty port to 2.2 kernels by Marc Boucher . + * + * Revision 1.11 1999/04/29 15:19:50 rgb + * Add return values to init and cleanup functions. + * + * Revision 1.10 1999/04/16 16:02:39 rgb + * Bump up macro to 4 ipsec I/Fs. + * + * Revision 1.9 1999/04/15 15:37:25 rgb + * Forward check changes from POST1_00 branch. + * + * Revision 1.5.2.1 1999/04/02 04:26:14 rgb + * Backcheck from HEAD, pre1.0. + * + * Revision 1.8 1999/04/11 00:29:01 henry + * GPL boilerplate + * + * Revision 1.7 1999/04/06 04:54:28 rgb + * Fix/Add RCSID Id: and Log: bits to make PHMDs happy. This includes + * patch shell fixes. + * + * Revision 1.6 1999/03/31 05:44:48 rgb + * Keep PMTU reduction private. + * + * Revision 1.5 1999/02/10 22:31:20 rgb + * Change rebuild_header member to reflect generality of link layer. + * + * Revision 1.4 1998/12/01 13:22:04 rgb + * Added support for debug printing of version info. + * + * Revision 1.3 1998/07/29 20:42:46 rgb + * Add a macro for clearing all tunnel devices. + * Rearrange structures and declarations for sharing with userspace. + * + * Revision 1.2 1998/06/25 20:01:45 rgb + * Make prototypes available for ipsec_init and ipsec proc_dir_entries + * for static linking. + * + * Revision 1.1 1998/06/18 21:27:50 henry + * move sources from klips/src to klips/net/ipsec, to keep stupid + * kernel-build scripts happier in the presence of symlinks + * + * Revision 1.3 1998/05/18 21:51:50 rgb + * Added macros for num of I/F's and a procfs debug switch. + * + * Revision 1.2 1998/04/21 21:29:09 rgb + * Rearrange debug switches to change on the fly debug output from user + * space. Only kernel changes checked in at this time. radij.c was also + * changed to temporarily remove buggy debugging code in rj_delete causing + * an OOPS and hence, netlink device open errors. + * + * Revision 1.1 1998/04/09 03:06:13 henry + * sources moved up from linux/net/ipsec + * + * Revision 1.1.1.1 1998/04/08 05:35:05 henry + * RGB's ipsec-0.8pre2.tar.gz ipsec-0.8 + * + * Revision 0.5 1997/06/03 04:24:48 ji + * Added transport mode. + * Changed the way routing is done. + * Lots of bug fixes. + * + * Revision 0.4 1997/01/15 01:28:15 ji + * No changes. + * + * Revision 0.3 1996/11/20 14:39:04 ji + * Minor cleanups. + * Rationalized debugging code. + * + * Revision 0.2 1996/11/02 00:18:33 ji + * First limited release. + * + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_xform.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,257 @@ +/* + * Definitions relevant to IPSEC transformations + * Copyright (C) 1996, 1997 John Ioannidis. + * Copyright (C) 1998, 1999, 2000, 2001 Richard Guy Briggs. + * COpyright (C) 2003 Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_xform.h,v 1.41 2004/07/10 19:08:41 mcr Exp $ + */ + +#ifndef _IPSEC_XFORM_H_ + +#include + +#define XF_NONE 0 /* No transform set */ +#define XF_IP4 1 /* IPv4 inside IPv4 */ +#define XF_AHMD5 2 /* AH MD5 */ +#define XF_AHSHA 3 /* AH SHA */ +#define XF_ESP3DES 5 /* ESP DES3-CBC */ +#define XF_AHHMACMD5 6 /* AH-HMAC-MD5 with opt replay prot */ +#define XF_AHHMACSHA1 7 /* AH-HMAC-SHA1 with opt replay prot */ +#define XF_ESP3DESMD5 9 /* triple DES, HMAC-MD-5, 128-bits of authentication */ +#define XF_ESP3DESMD596 10 /* triple DES, HMAC-MD-5, 96-bits of authentication */ +#define XF_ESPNULLMD596 12 /* NULL, HMAC-MD-5 with 96-bits of authentication */ +#define XF_ESPNULLSHA196 13 /* NULL, HMAC-SHA-1 with 96-bits of authentication */ +#define XF_ESP3DESSHA196 14 /* triple DES, HMAC-SHA-1, 96-bits of authentication */ +#define XF_IP6 15 /* IPv6 inside IPv6 */ +#define XF_COMPDEFLATE 16 /* IPCOMP deflate */ + +#define XF_CLR 126 /* Clear SA table */ +#define XF_DEL 127 /* Delete SA */ + +/* IPsec AH transform values + * RFC 2407 + * draft-ietf-ipsec-doi-tc-mib-02.txt + */ + +#define AH_NONE 0 +#define AH_MD5 2 +#define AH_SHA 3 +/* draft-ietf-ipsec-ciph-aes-cbc-03.txt */ +#define AH_SHA2_256 5 +#define AH_SHA2_384 6 +#define AH_SHA2_512 7 +#define AH_RIPEMD 8 +#define AH_MAX 15 + +/* IPsec ESP transform values */ + +#define ESP_NONE 0 +#define ESP_DES 2 +#define ESP_3DES 3 +#define ESP_RC5 4 +#define ESP_IDEA 5 +#define ESP_CAST 6 +#define ESP_BLOWFISH 7 +#define ESP_3IDEA 8 +#define ESP_RC4 10 +#define ESP_NULL 11 +#define ESP_AES 12 + +/* as draft-ietf-ipsec-ciph-aes-cbc-02.txt */ +#define ESP_MARS 249 +#define ESP_RC6 250 +#define ESP_SERPENT 252 +#define ESP_TWOFISH 253 + +/* IPCOMP transform values */ + +#define IPCOMP_NONE 0 +#define IPCOMP_OUI 1 +#define IPCOMP_DEFLAT 2 +#define IPCOMP_LZS 3 +#define IPCOMP_V42BIS 4 + +#define XFT_AUTH 0x0001 +#define XFT_CONF 0x0100 + +/* available if CONFIG_KLIPS_DEBUG is defined */ +#define DB_XF_INIT 0x0001 + +#define PROTO2TXT(x) \ + (x) == IPPROTO_AH ? "AH" : \ + (x) == IPPROTO_ESP ? "ESP" : \ + (x) == IPPROTO_IPIP ? "IPIP" : \ + (x) == IPPROTO_COMP ? "COMP" : \ + "UNKNOWN_proto" +static inline const char *enc_name_id (unsigned id) { + static char buf[16]; + snprintf(buf, sizeof(buf), "_ID%d", id); + return buf; +} +static inline const char *auth_name_id (unsigned id) { + static char buf[16]; + snprintf(buf, sizeof(buf), "_ID%d", id); + return buf; +} +#define IPS_XFORM_NAME(x) \ + PROTO2TXT((x)->ips_said.proto), \ + (x)->ips_said.proto == IPPROTO_COMP ? \ + ((x)->ips_encalg == SADB_X_CALG_DEFLATE ? \ + "_DEFLATE" : "_UNKNOWN_comp") : \ + (x)->ips_encalg == ESP_NONE ? "" : \ + (x)->ips_encalg == ESP_3DES ? "_3DES" : \ + (x)->ips_encalg == ESP_AES ? "_AES" : \ + (x)->ips_encalg == ESP_SERPENT ? "_SERPENT" : \ + (x)->ips_encalg == ESP_TWOFISH ? "_TWOFISH" : \ + enc_name_id(x->ips_encalg)/* "_UNKNOWN_encr" */, \ + (x)->ips_authalg == AH_NONE ? "" : \ + (x)->ips_authalg == AH_MD5 ? "_HMAC_MD5" : \ + (x)->ips_authalg == AH_SHA ? "_HMAC_SHA1" : \ + (x)->ips_authalg == AH_SHA2_256 ? "_HMAC_SHA2_256" : \ + (x)->ips_authalg == AH_SHA2_384 ? "_HMAC_SHA2_384" : \ + (x)->ips_authalg == AH_SHA2_512 ? "_HMAC_SHA2_512" : \ + auth_name_id(x->ips_authalg) /* "_UNKNOWN_auth" */ \ + +#ifdef __KERNEL__ +struct ipsec_rcv_state; +struct ipsec_xmit_state; + +struct xform_functions { + enum ipsec_rcv_value (*rcv_checks)(struct ipsec_rcv_state *irs, + struct sk_buff *skb); + enum ipsec_rcv_value (*rcv_decrypt)(struct ipsec_rcv_state *irs); + + enum ipsec_rcv_value (*rcv_setup_auth)(struct ipsec_rcv_state *irs, + struct sk_buff *skb, + __u32 *replay, + unsigned char **authenticator); + enum ipsec_rcv_value (*rcv_calc_auth)(struct ipsec_rcv_state *irs, + struct sk_buff *skb); + + enum ipsec_xmit_value (*xmit_setup)(struct ipsec_xmit_state *ixs); + enum ipsec_xmit_value (*xmit_encrypt)(struct ipsec_xmit_state *ixs); + + enum ipsec_xmit_value (*xmit_setup_auth)(struct ipsec_xmit_state *ixs, + struct sk_buff *skb, + __u32 *replay, + unsigned char **authenticator); + enum ipsec_xmit_value (*xmit_calc_auth)(struct ipsec_xmit_state *ixs, + struct sk_buff *skb); + int xmit_headroom; + int xmit_needtailroom; +}; + +#endif /* __KERNEL__ */ + +#ifdef CONFIG_KLIPS_DEBUG +extern void ipsec_dmp(char *s, caddr_t bb, int len); +#else /* CONFIG_KLIPS_DEBUG */ +#define ipsec_dmp(_x, _y, _z) +#endif /* CONFIG_KLIPS_DEBUG */ + + +#define _IPSEC_XFORM_H_ +#endif /* _IPSEC_XFORM_H_ */ + +/* + * $Log: ipsec_xform.h,v $ + * Revision 1.41 2004/07/10 19:08:41 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.40 2004/04/06 02:49:08 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.39 2004/04/05 19:55:07 mcr + * Moved from linux/include/freeswan/ipsec_xform.h,v + * + * Revision 1.38 2004/04/05 19:41:05 mcr + * merged alg-branch code. + * + * Revision 1.37 2003/12/13 19:10:16 mcr + * refactored rcv and xmit code - same as FS 2.05. + * + * Revision 1.36.34.1 2003/12/22 15:25:52 jjo + * Merged algo-0.8.1-rc11-test1 into alg-branch + * + * Revision 1.36 2002/04/24 07:36:48 mcr + * Moved from ./klips/net/ipsec/ipsec_xform.h,v + * + * Revision 1.35 2001/11/26 09:23:51 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.33.2.1 2001/09/25 02:24:58 mcr + * struct tdb -> struct ipsec_sa. + * sa(tdb) manipulation functions renamed and moved to ipsec_sa.c + * ipsec_xform.c removed. header file still contains useful things. + * + * Revision 1.34 2001/11/06 19:47:17 rgb + * Changed lifetime_packets to uint32 from uint64. + * + * Revision 1.33 2001/09/08 21:13:34 rgb + * Added pfkey ident extension support for ISAKMPd. (NetCelo) + * + * Revision 1.32 2001/07/06 07:40:01 rgb + * Reformatted for readability. + * Added inbound policy checking fields for use with IPIP SAs. + * + * Revision 1.31 2001/06/14 19:35:11 rgb + * Update copyright date. + * + * Revision 1.30 2001/05/30 08:14:03 rgb + * Removed vestiges of esp-null transforms. + * + * Revision 1.29 2001/01/30 23:42:47 rgb + * Allow pfkey msgs from pid other than user context required for ACQUIRE + * and subsequent ADD or UDATE. + * + * Revision 1.28 2000/11/06 04:30:40 rgb + * Add Svenning's adaptive content compression. + * + * Revision 1.27 2000/09/19 00:38:25 rgb + * Fixed algorithm name bugs introduced for ipcomp. + * + * Revision 1.26 2000/09/17 21:36:48 rgb + * Added proto2txt macro. + * + * Revision 1.25 2000/09/17 18:56:47 rgb + * Added IPCOMP support. + * + * Revision 1.24 2000/09/12 19:34:12 rgb + * Defined XF_IP6 from Gerhard for ipv6 tunnel support. + * + * Revision 1.23 2000/09/12 03:23:14 rgb + * Cleaned out now unused tdb_xform and tdb_xdata members of struct tdb. + * + * Revision 1.22 2000/09/08 19:12:56 rgb + * Change references from DEBUG_IPSEC to CONFIG_IPSEC_DEBUG. + * + * Revision 1.21 2000/09/01 18:32:43 rgb + * Added (disabled) sensitivity members to tdb struct. + * + * Revision 1.20 2000/08/30 05:31:01 rgb + * Removed all the rest of the references to tdb_spi, tdb_proto, tdb_dst. + * Kill remainder of tdb_xform, tdb_xdata, xformsw. + * + * Revision 1.19 2000/08/01 14:51:52 rgb + * Removed _all_ remaining traces of DES. + * + * Revision 1.18 2000/01/21 06:17:45 rgb + * Tidied up spacing. + * + * + * Local variables: + * c-file-style: "linux" + * End: + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/ipsec_xmit.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,198 @@ +/* + * IPSEC tunneling code + * Copyright (C) 1996, 1997 John Ioannidis. + * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Richard Guy Briggs. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_xmit.h,v 1.14 2005/05/11 01:00:26 mcr Exp $ + */ + +#include "openswan/ipsec_sa.h" + +enum ipsec_xmit_value +{ + IPSEC_XMIT_STOLEN=2, + IPSEC_XMIT_PASS=1, + IPSEC_XMIT_OK=0, + IPSEC_XMIT_ERRMEMALLOC=-1, + IPSEC_XMIT_ESP_BADALG=-2, + IPSEC_XMIT_BADPROTO=-3, + IPSEC_XMIT_ESP_PUSHPULLERR=-4, + IPSEC_XMIT_BADLEN=-5, + IPSEC_XMIT_AH_BADALG=-6, + IPSEC_XMIT_SAIDNOTFOUND=-7, + IPSEC_XMIT_SAIDNOTLIVE=-8, + IPSEC_XMIT_REPLAYROLLED=-9, + IPSEC_XMIT_LIFETIMEFAILED=-10, + IPSEC_XMIT_CANNOTFRAG=-11, + IPSEC_XMIT_MSSERR=-12, + IPSEC_XMIT_ERRSKBALLOC=-13, + IPSEC_XMIT_ENCAPFAIL=-14, + IPSEC_XMIT_NODEV=-15, + IPSEC_XMIT_NOPRIVDEV=-16, + IPSEC_XMIT_NOPHYSDEV=-17, + IPSEC_XMIT_NOSKB=-18, + IPSEC_XMIT_NOIPV6=-19, + IPSEC_XMIT_NOIPOPTIONS=-20, + IPSEC_XMIT_TTLEXPIRED=-21, + IPSEC_XMIT_BADHHLEN=-22, + IPSEC_XMIT_PUSHPULLERR=-23, + IPSEC_XMIT_ROUTEERR=-24, + IPSEC_XMIT_RECURSDETECT=-25, + IPSEC_XMIT_IPSENDFAILURE=-26, + IPSEC_XMIT_ESPUDP=-27, + IPSEC_XMIT_ESPUDP_BADTYPE=-28, +}; + +struct ipsec_xmit_state +{ + struct sk_buff *skb; /* working skb pointer */ + struct net_device *dev; /* working dev pointer */ + struct ipsecpriv *prv; /* Our device' private space */ + struct sk_buff *oskb; /* Original skb pointer */ + struct net_device_stats *stats; /* This device's statistics */ + struct iphdr *iph; /* Our new IP header */ + __u32 newdst; /* The other SG's IP address */ + __u32 orgdst; /* Original IP destination address */ + __u32 orgedst; /* 1st SG's IP address */ + __u32 newsrc; /* The new source SG's IP address */ + __u32 orgsrc; /* Original IP source address */ + __u32 innersrc; /* Innermost IP source address */ + int iphlen; /* IP header length */ + int pyldsz; /* upper protocol payload size */ + int headroom; + int tailroom; + int authlen; + int max_headroom; /* The extra header space needed */ + int max_tailroom; /* The extra stuffing needed */ + int ll_headroom; /* The extra link layer hard_header space needed */ + int tot_headroom; /* The total header space needed */ + int tot_tailroom; /* The totalstuffing needed */ + __u8 *saved_header; /* saved copy of the hard header */ + unsigned short sport, dport; + + struct sockaddr_encap matcher; /* eroute search key */ + struct eroute *eroute; + struct ipsec_sa *ipsp, *ipsq; /* ipsec_sa pointers */ + char sa_txt[SATOT_BUF]; + size_t sa_len; + int hard_header_stripped; /* has the hard header been removed yet? */ + int hard_header_len; + struct net_device *physdev; +/* struct device *virtdev; */ + short physmtu; + short cur_mtu; /* copy of prv->mtu, cause prv may == NULL */ + short mtudiff; +#ifdef NET_21 + struct rtable *route; +#endif /* NET_21 */ + ip_said outgoing_said; +#ifdef NET_21 + int pass; +#endif /* NET_21 */ + int error; + uint32_t eroute_pid; + struct ipsec_sa ips; +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL + uint8_t natt_type; + uint8_t natt_head; + uint16_t natt_sport; + uint16_t natt_dport; +#endif +}; + +enum ipsec_xmit_value +ipsec_xmit_sanity_check_dev(struct ipsec_xmit_state *ixs); + +enum ipsec_xmit_value +ipsec_xmit_sanity_check_skb(struct ipsec_xmit_state *ixs); + +enum ipsec_xmit_value +ipsec_xmit_encap_bundle(struct ipsec_xmit_state *ixs); + +extern void ipsec_extract_ports(struct iphdr * iph, struct sockaddr_encap * er); + + +extern int ipsec_xmit_trap_count; +extern int ipsec_xmit_trap_sendcount; + +#ifdef CONFIG_KLIPS_DEBUG +extern int debug_tunnel; + +#define debug_xmit debug_tunnel + +#define ipsec_xmit_dmp(_x,_y, _z) if (debug_xmit && sysctl_ipsec_debug_verbose) ipsec_dmp_block(_x,_y,_z) +#else +#define ipsec_xmit_dmp(_x,_y, _z) do {} while(0) + +#endif /* CONFIG_KLIPS_DEBUG */ + +extern int sysctl_ipsec_debug_verbose; +extern int sysctl_ipsec_icmp; +extern int sysctl_ipsec_tos; + + +/* + * $Log: ipsec_xmit.h,v $ + * Revision 1.14 2005/05/11 01:00:26 mcr + * do not call debug routines if !defined KLIPS_DEBUG. + * + * Revision 1.13 2005/04/29 05:01:38 mcr + * use ipsec_dmp_block. + * added cur_mtu to ixs instead of using ixs->dev. + * + * Revision 1.12 2004/08/20 21:45:37 mcr + * CONFIG_KLIPS_NAT_TRAVERSAL is not used in an attempt to + * be 26sec compatible. But, some defines where changed. + * + * Revision 1.11 2004/08/03 18:18:21 mcr + * in 2.6, use "net_device" instead of #define device->net_device. + * this probably breaks 2.0 compiles. + * + * Revision 1.10 2004/07/10 19:08:41 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.9 2004/04/06 02:49:08 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.8 2004/04/05 19:55:07 mcr + * Moved from linux/include/freeswan/ipsec_xmit.h,v + * + * Revision 1.7 2004/02/03 03:11:40 mcr + * new xmit type if the UDP encapsulation is wrong. + * + * Revision 1.6 2003/12/13 19:10:16 mcr + * refactored rcv and xmit code - same as FS 2.05. + * + * Revision 1.5 2003/12/10 01:20:06 mcr + * NAT-traversal patches to KLIPS. + * + * Revision 1.4 2003/12/06 16:37:04 mcr + * 1.4.7a X.509 patch applied. + * + * Revision 1.3 2003/10/31 02:27:05 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.2.4.2 2003/10/29 01:10:19 mcr + * elimited "struct sa_id" + * + * Revision 1.2.4.1 2003/09/21 13:59:38 mcr + * pre-liminary X.509 patch - does not yet pass tests. + * + * Revision 1.2 2003/06/20 01:42:13 mcr + * added counters to measure how many ACQUIREs we send to pluto, + * and how many are successfully sent. + * + * Revision 1.1 2003/02/12 19:31:03 rgb + * Refactored from ipsec_tunnel.c + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/passert.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,75 @@ +/* + * sanitize a string into a printable format. + * + * Copyright (C) 1998-2002 D. Hugh Redelmeier. + * Copyright (C) 2003 Michael Richardson + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + * License for more details. + * + * RCSID $Id: passert.h,v 1.7 2004/10/21 18:44:42 mcr Exp $ + */ + +#include "openswan.h" + +#ifndef _OPENSWAN_PASSERT_H +#define _OPENSWAN_PASSERT_H +/* our versions of assert: log result */ + +#ifdef DEBUG + +typedef void (*openswan_passert_fail_t)(const char *pred_str, + const char *file_str, + unsigned long line_no) NEVER_RETURNS; + +openswan_passert_fail_t openswan_passert_fail; + +extern void pexpect_log(const char *pred_str + , const char *file_str, unsigned long line_no); + +# define impossible() do { \ + if(openswan_passert_fail) { \ + (*openswan_passert_fail)("impossible", __FILE__, __LINE__); \ + }} while(0) + +extern void switch_fail(int n + , const char *file_str, unsigned long line_no) NEVER_RETURNS; + +# define bad_case(n) switch_fail((int) n, __FILE__, __LINE__) + +# define passert(pred) do { \ + if (!(pred)) \ + if(openswan_passert_fail) { \ + (*openswan_passert_fail)(#pred, __FILE__, __LINE__); \ + } \ + } while(0) + +# define pexpect(pred) do { \ + if (!(pred)) \ + pexpect_log(#pred, __FILE__, __LINE__); \ + } while(0) + +/* assert that an err_t is NULL; evaluate exactly once */ +# define happy(x) { \ + err_t ugh = x; \ + if (ugh != NULL) \ + if(openswan_passert_fail) { (*openswan_passert_fail)(ugh, __FILE__, __LINE__); } \ + } + +#else /*!DEBUG*/ + +# define impossible() abort() +# define bad_case(n) abort() +# define passert(pred) { } /* do nothing */ +# define happy(x) { (void) x; } /* evaluate non-judgementally */ + +#endif /*!DEBUG*/ + +#endif /* _OPENSWAN_PASSERT_H */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/pfkey_debug.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,54 @@ +/* + * sanitize a string into a printable format. + * + * Copyright (C) 1998-2002 D. Hugh Redelmeier. + * Copyright (C) 2003 Michael Richardson + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + * License for more details. + * + * RCSID $Id: pfkey_debug.h,v 1.3 2004/04/05 19:55:07 mcr Exp $ + */ + +#ifndef _FREESWAN_PFKEY_DEBUG_H +#define _FREESWAN_PFKEY_DEBUG_H + +#ifdef __KERNEL__ + +/* note, kernel version ignores pfkey levels */ +# define DEBUGGING(level,args...) \ + KLIPS_PRINT(debug_pfkey, "klips_debug:" args) + +# define ERROR(args...) printk(KERN_ERR "klips:" args) + +#else + +extern unsigned int pfkey_lib_debug; + +extern void (*pfkey_debug_func)(const char *message, ...) PRINTF_LIKE(1); +extern void (*pfkey_error_func)(const char *message, ...) PRINTF_LIKE(1); + +#define DEBUGGING(level,args...) if(pfkey_lib_debug & level) { \ + if(pfkey_debug_func != NULL) { \ + (*pfkey_debug_func)("pfkey_lib_debug:" args); \ + } else { \ + printf("pfkey_lib_debug:" args); \ + } } + +#define ERROR(args...) if(pfkey_error_func != NULL) { \ + (*pfkey_error_func)("pfkey_lib_debug:" args); \ + } + +# define MALLOC(size) malloc(size) +# define FREE(obj) free(obj) + +#endif + +#endif --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/openswan/radij.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,280 @@ +/* + * RCSID $Id: radij.h,v 1.13 2004/04/05 19:55:08 mcr Exp $ + */ + +/* + * This file is defived from ${SRC}/sys/net/radix.h of BSD 4.4lite + * + * Variable and procedure names have been modified so that they don't + * conflict with the original BSD code, as a small number of modifications + * have been introduced and we may want to reuse this code in BSD. + * + * The `j' in `radij' is pronounced as a voiceless guttural (like a Greek + * chi or a German ch sound (as `doch', not as in `milch'), or even a + * spanish j as in Juan. It is not as far back in the throat like + * the corresponding Hebrew sound, nor is it a soft breath like the English h. + * It has nothing to do with the Dutch ij sound. + * + * Here is the appropriate copyright notice: + */ + +/* + * Copyright (c) 1988, 1989, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)radix.h 8.1 (Berkeley) 6/10/93 + */ + +#ifndef _RADIJ_H_ +#define _RADIJ_H_ + +/* +#define RJ_DEBUG +*/ + +#ifdef __KERNEL__ + +#ifndef __P +#ifdef __STDC__ +#define __P(x) x +#else +#define __P(x) () +#endif +#endif + +/* + * Radix search tree node layout. + */ + +struct radij_node +{ + struct radij_mask *rj_mklist; /* list of masks contained in subtree */ + struct radij_node *rj_p; /* parent */ + short rj_b; /* bit offset; -1-index(netmask) */ + char rj_bmask; /* node: mask for bit test*/ + u_char rj_flags; /* enumerated next */ +#define RJF_NORMAL 1 /* leaf contains normal route */ +#define RJF_ROOT 2 /* leaf is root leaf for tree */ +#define RJF_ACTIVE 4 /* This node is alive (for rtfree) */ + union { + struct { /* leaf only data: */ + caddr_t rj_Key; /* object of search */ + caddr_t rj_Mask; /* netmask, if present */ + struct radij_node *rj_Dupedkey; + } rj_leaf; + struct { /* node only data: */ + int rj_Off; /* where to start compare */ + struct radij_node *rj_L;/* progeny */ + struct radij_node *rj_R;/* progeny */ + }rj_node; + } rj_u; +#ifdef RJ_DEBUG + int rj_info; + struct radij_node *rj_twin; + struct radij_node *rj_ybro; +#endif +}; + +#define rj_dupedkey rj_u.rj_leaf.rj_Dupedkey +#define rj_key rj_u.rj_leaf.rj_Key +#define rj_mask rj_u.rj_leaf.rj_Mask +#define rj_off rj_u.rj_node.rj_Off +#define rj_l rj_u.rj_node.rj_L +#define rj_r rj_u.rj_node.rj_R + +/* + * Annotations to tree concerning potential routes applying to subtrees. + */ + +extern struct radij_mask { + short rm_b; /* bit offset; -1-index(netmask) */ + char rm_unused; /* cf. rj_bmask */ + u_char rm_flags; /* cf. rj_flags */ + struct radij_mask *rm_mklist; /* more masks to try */ + caddr_t rm_mask; /* the mask */ + int rm_refs; /* # of references to this struct */ +} *rj_mkfreelist; + +#define MKGet(m) {\ + if (rj_mkfreelist) {\ + m = rj_mkfreelist; \ + rj_mkfreelist = (m)->rm_mklist; \ + } else \ + R_Malloc(m, struct radij_mask *, sizeof (*(m))); }\ + +#define MKFree(m) { (m)->rm_mklist = rj_mkfreelist; rj_mkfreelist = (m);} + +struct radij_node_head { + struct radij_node *rnh_treetop; + int rnh_addrsize; /* permit, but not require fixed keys */ + int rnh_pktsize; /* permit, but not require fixed keys */ +#if 0 + struct radij_node *(*rnh_addaddr) /* add based on sockaddr */ + __P((void *v, void *mask, + struct radij_node_head *head, struct radij_node nodes[])); +#endif + int (*rnh_addaddr) /* add based on sockaddr */ + __P((void *v, void *mask, + struct radij_node_head *head, struct radij_node nodes[])); + struct radij_node *(*rnh_addpkt) /* add based on packet hdr */ + __P((void *v, void *mask, + struct radij_node_head *head, struct radij_node nodes[])); +#if 0 + struct radij_node *(*rnh_deladdr) /* remove based on sockaddr */ + __P((void *v, void *mask, struct radij_node_head *head)); +#endif + int (*rnh_deladdr) /* remove based on sockaddr */ + __P((void *v, void *mask, struct radij_node_head *head, struct radij_node **node)); + struct radij_node *(*rnh_delpkt) /* remove based on packet hdr */ + __P((void *v, void *mask, struct radij_node_head *head)); + struct radij_node *(*rnh_matchaddr) /* locate based on sockaddr */ + __P((void *v, struct radij_node_head *head)); + struct radij_node *(*rnh_matchpkt) /* locate based on packet hdr */ + __P((void *v, struct radij_node_head *head)); + int (*rnh_walktree) /* traverse tree */ + __P((struct radij_node_head *head, int (*f)(struct radij_node *rn, void *w), void *w)); + struct radij_node rnh_nodes[3]; /* empty tree for common case */ +}; + + +#define Bcmp(a, b, n) memcmp(((caddr_t)(b)), ((caddr_t)(a)), (unsigned)(n)) +#define Bcopy(a, b, n) memmove(((caddr_t)(b)), ((caddr_t)(a)), (unsigned)(n)) +#define Bzero(p, n) memset((caddr_t)(p), 0, (unsigned)(n)) +#define R_Malloc(p, t, n) ((p = (t) kmalloc((size_t)(n), GFP_ATOMIC)), Bzero((p),(n))) +#define Free(p) kfree((caddr_t)p); + +void rj_init __P((void)); +int rj_inithead __P((void **, int)); +int rj_refines __P((void *, void *)); +int rj_walktree __P((struct radij_node_head *head, int (*f)(struct radij_node *rn, void *w), void *w)); +struct radij_node + *rj_addmask __P((void *, int, int)) /* , rgb */ ; +int /* * */ rj_addroute __P((void *, void *, struct radij_node_head *, + struct radij_node [2])) /* , rgb */ ; +int /* * */ rj_delete __P((void *, void *, struct radij_node_head *, struct radij_node **)) /* , rgb */ ; +struct radij_node /* rgb */ + *rj_insert __P((void *, struct radij_node_head *, int *, + struct radij_node [2])), + *rj_match __P((void *, struct radij_node_head *)), + *rj_newpair __P((void *, int, struct radij_node[2])), + *rj_search __P((void *, struct radij_node *)), + *rj_search_m __P((void *, struct radij_node *, void *)); + +void rj_deltree(struct radij_node_head *); +void rj_delnodes(struct radij_node *); +void rj_free_mkfreelist(void); +int radijcleartree(void); +int radijcleanup(void); + +extern struct radij_node_head *mask_rjhead; +extern int maj_keylen; +#endif /* __KERNEL__ */ + +#endif /* _RADIJ_H_ */ + + +/* + * $Log: radij.h,v $ + * Revision 1.13 2004/04/05 19:55:08 mcr + * Moved from linux/include/freeswan/radij.h,v + * + * Revision 1.12 2002/04/24 07:36:48 mcr + * Moved from ./klips/net/ipsec/radij.h,v + * + * Revision 1.11 2001/09/20 15:33:00 rgb + * Min/max cleanup. + * + * Revision 1.10 1999/11/18 04:09:20 rgb + * Replaced all kernel version macros to shorter, readable form. + * + * Revision 1.9 1999/05/05 22:02:33 rgb + * Add a quick and dirty port to 2.2 kernels by Marc Boucher . + * + * Revision 1.8 1999/04/29 15:24:58 rgb + * Add check for existence of macros min/max. + * + * Revision 1.7 1999/04/11 00:29:02 henry + * GPL boilerplate + * + * Revision 1.6 1999/04/06 04:54:29 rgb + * Fix/Add RCSID Id: and Log: bits to make PHMDs happy. This includes + * patch shell fixes. + * + * Revision 1.5 1999/01/22 06:30:32 rgb + * 64-bit clean-up. + * + * Revision 1.4 1998/11/30 13:22:55 rgb + * Rationalised all the klips kernel file headers. They are much shorter + * now and won't conflict under RH5.2. + * + * Revision 1.3 1998/10/25 02:43:27 rgb + * Change return type on rj_addroute and rj_delete and add and argument + * to the latter to be able to transmit more infomation about errors. + * + * Revision 1.2 1998/07/14 18:09:51 rgb + * Add a routine to clear eroute table. + * Added #ifdef __KERNEL__ directives to restrict scope of header. + * + * Revision 1.1 1998/06/18 21:30:22 henry + * move sources from klips/src to klips/net/ipsec to keep stupid kernel + * build scripts happier about symlinks + * + * Revision 1.4 1998/05/25 20:34:16 rgb + * Remove temporary ipsec_walk, rj_deltree and rj_delnodes functions. + * + * Rename ipsec_rj_walker (ipsec_walk) to ipsec_rj_walker_procprint and + * add ipsec_rj_walker_delete. + * + * Recover memory for eroute table on unload of module. + * + * Revision 1.3 1998/04/22 16:51:37 rgb + * Tidy up radij debug code from recent rash of modifications to debug code. + * + * Revision 1.2 1998/04/14 17:30:38 rgb + * Fix up compiling errors for radij tree memory reclamation. + * + * Revision 1.1 1998/04/09 03:06:16 henry + * sources moved up from linux/net/ipsec + * + * Revision 1.1.1.1 1998/04/08 05:35:04 henry + * RGB's ipsec-0.8pre2.tar.gz ipsec-0.8 + * + * Revision 0.4 1997/01/15 01:28:15 ji + * No changes. + * + * Revision 0.3 1996/11/20 14:44:45 ji + * Release update only. + * + * Revision 0.2 1996/11/02 00:18:33 ji + * First limited release. + * + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/pfkey.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,529 @@ +/* + * FreeS/WAN specific PF_KEY headers + * Copyright (C) 1999, 2000, 2001 Richard Guy Briggs. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: pfkey.h,v 1.49 2005/05/11 00:57:29 mcr Exp $ + */ + +#ifndef __NET_IPSEC_PF_KEY_H +#define __NET_IPSEC_PF_KEY_H +#ifdef __KERNEL__ +extern struct proto_ops pfkey_proto_ops; +typedef struct sock pfkey_sock; +extern int debug_pfkey; + +extern /* void */ int pfkey_init(void); +extern /* void */ int pfkey_cleanup(void); + +struct socket_list +{ + struct socket *socketp; + struct socket_list *next; +}; +extern int pfkey_list_insert_socket(struct socket*, struct socket_list**); +extern int pfkey_list_remove_socket(struct socket*, struct socket_list**); +extern struct socket_list *pfkey_open_sockets; +extern struct socket_list *pfkey_registered_sockets[]; + +struct ipsec_alg_supported +{ + uint16_t ias_exttype; + uint8_t ias_id; + uint8_t ias_ivlen; + uint16_t ias_keyminbits; + uint16_t ias_keymaxbits; + char *ias_name; +}; + +extern struct supported_list *pfkey_supported_list[]; +struct supported_list +{ + struct ipsec_alg_supported *supportedp; + struct supported_list *next; +}; +extern int pfkey_list_insert_supported(struct ipsec_alg_supported*, struct supported_list**); +extern int pfkey_list_remove_supported(struct ipsec_alg_supported*, struct supported_list**); + +struct sockaddr_key +{ + uint16_t key_family; /* PF_KEY */ + uint16_t key_pad; /* not used */ + uint32_t key_pid; /* process ID */ +}; + +struct pfkey_extracted_data +{ + struct ipsec_sa* ips; + struct ipsec_sa* ips2; + struct eroute *eroute; +}; + +/* forward reference */ +struct sadb_ext; +struct sadb_msg; +struct sockaddr; +struct sadb_comb; +struct sadb_sadb; +struct sadb_alg; + +extern int +pfkey_alloc_eroute(struct eroute** eroute); + +extern int +pfkey_sa_process(struct sadb_ext *pfkey_ext, + struct pfkey_extracted_data* extr); + +extern int +pfkey_lifetime_process(struct sadb_ext *pfkey_ext, + struct pfkey_extracted_data* extr); + +extern int +pfkey_address_process(struct sadb_ext *pfkey_ext, + struct pfkey_extracted_data* extr); + +extern int +pfkey_key_process(struct sadb_ext *pfkey_ext, + struct pfkey_extracted_data* extr); + +extern int +pfkey_ident_process(struct sadb_ext *pfkey_ext, + struct pfkey_extracted_data* extr); + +extern int +pfkey_sens_process(struct sadb_ext *pfkey_ext, + struct pfkey_extracted_data* extr); + +extern int +pfkey_prop_process(struct sadb_ext *pfkey_ext, + struct pfkey_extracted_data* extr); + +extern int +pfkey_supported_process(struct sadb_ext *pfkey_ext, + struct pfkey_extracted_data* extr); + +extern int +pfkey_spirange_process(struct sadb_ext *pfkey_ext, + struct pfkey_extracted_data* extr); + +extern int +pfkey_x_kmprivate_process(struct sadb_ext *pfkey_ext, + struct pfkey_extracted_data* extr); + +extern int +pfkey_x_satype_process(struct sadb_ext *pfkey_ext, + struct pfkey_extracted_data* extr); + +extern int +pfkey_x_debug_process(struct sadb_ext *pfkey_ext, + struct pfkey_extracted_data* extr); + +extern int pfkey_upmsg(struct socket *, struct sadb_msg *); +extern int pfkey_expire(struct ipsec_sa *, int); +extern int pfkey_acquire(struct ipsec_sa *); +#else /* ! __KERNEL__ */ + +extern void (*pfkey_debug_func)(const char *message, ...); +extern void (*pfkey_error_func)(const char *message, ...); +extern void pfkey_print(struct sadb_msg *msg, FILE *out); + + +#endif /* __KERNEL__ */ + +extern uint8_t satype2proto(uint8_t satype); +extern uint8_t proto2satype(uint8_t proto); +extern char* satype2name(uint8_t satype); +extern char* proto2name(uint8_t proto); + +struct key_opt +{ + uint32_t key_pid; /* process ID */ + struct sock *sk; +}; + +#define key_pid(sk) ((struct key_opt*)&((sk)->sk_protinfo))->key_pid + +/* XXX-mcr this is not an alignment, this is because the count is in 64-bit + * words. + */ +#define IPSEC_PFKEYv2_ALIGN (sizeof(uint64_t)/sizeof(uint8_t)) +#define BITS_PER_OCTET 8 +#define OCTETBITS 8 +#define PFKEYBITS 64 +#define DIVUP(x,y) ((x + y -1) / y) /* divide, rounding upwards */ +#define ALIGN_N(x,y) (DIVUP(x,y) * y) /* align on y boundary */ + +#define IPSEC_PFKEYv2_LEN(x) ((x) * IPSEC_PFKEYv2_ALIGN) +#define IPSEC_PFKEYv2_WORDS(x) ((x) / IPSEC_PFKEYv2_ALIGN) + + +#define PFKEYv2_MAX_MSGSIZE 4096 + +/* + * PF_KEYv2 permitted and required extensions in and out bitmaps + */ +struct pf_key_ext_parsers_def { + int (*parser)(struct sadb_ext*); + char *parser_name; +}; + + +#define SADB_EXTENSIONS_MAX 31 +extern unsigned int extensions_bitmaps[2/*in/out*/][2/*perm/req*/][SADB_EXTENSIONS_MAX]; +#define EXT_BITS_IN 0 +#define EXT_BITS_OUT 1 +#define EXT_BITS_PERM 0 +#define EXT_BITS_REQ 1 + +extern void pfkey_extensions_init(struct sadb_ext *extensions[]); +extern void pfkey_extensions_free(struct sadb_ext *extensions[]); +extern void pfkey_msg_free(struct sadb_msg **pfkey_msg); + +extern int pfkey_msg_parse(struct sadb_msg *pfkey_msg, + struct pf_key_ext_parsers_def *ext_parsers[], + struct sadb_ext **extensions, + int dir); + +extern int pfkey_register_reply(int satype, struct sadb_msg *sadb_msg); + +/* + * PF_KEYv2 build function prototypes + */ + +int +pfkey_msg_hdr_build(struct sadb_ext** pfkey_ext, + uint8_t msg_type, + uint8_t satype, + uint8_t msg_errno, + uint32_t seq, + uint32_t pid); + +int +pfkey_sa_ref_build(struct sadb_ext ** pfkey_ext, + uint16_t exttype, + uint32_t spi, /* in network order */ + uint8_t replay_window, + uint8_t sa_state, + uint8_t auth, + uint8_t encrypt, + uint32_t flags, + uint32_t/*IPsecSAref_t*/ ref); + +int +pfkey_sa_build(struct sadb_ext ** pfkey_ext, + uint16_t exttype, + uint32_t spi, /* in network order */ + uint8_t replay_window, + uint8_t sa_state, + uint8_t auth, + uint8_t encrypt, + uint32_t flags); + +int +pfkey_lifetime_build(struct sadb_ext ** pfkey_ext, + uint16_t exttype, + uint32_t allocations, + uint64_t bytes, + uint64_t addtime, + uint64_t usetime, + uint32_t packets); + +int +pfkey_address_build(struct sadb_ext** pfkey_ext, + uint16_t exttype, + uint8_t proto, + uint8_t prefixlen, + struct sockaddr* address); + +int +pfkey_key_build(struct sadb_ext** pfkey_ext, + uint16_t exttype, + uint16_t key_bits, + char* key); + +int +pfkey_ident_build(struct sadb_ext** pfkey_ext, + uint16_t exttype, + uint16_t ident_type, + uint64_t ident_id, + uint8_t ident_len, + char* ident_string); + +#ifdef __KERNEL__ +extern int pfkey_nat_t_new_mapping(struct ipsec_sa *, struct sockaddr *, __u16); +extern int pfkey_x_nat_t_type_process(struct sadb_ext *pfkey_ext, struct pfkey_extracted_data* extr); +extern int pfkey_x_nat_t_port_process(struct sadb_ext *pfkey_ext, struct pfkey_extracted_data* extr); +#endif /* __KERNEL__ */ +int +pfkey_x_nat_t_type_build(struct sadb_ext** pfkey_ext, + uint8_t type); +int +pfkey_x_nat_t_port_build(struct sadb_ext** pfkey_ext, + uint16_t exttype, + uint16_t port); + +int +pfkey_sens_build(struct sadb_ext** pfkey_ext, + uint32_t dpd, + uint8_t sens_level, + uint8_t sens_len, + uint64_t* sens_bitmap, + uint8_t integ_level, + uint8_t integ_len, + uint64_t* integ_bitmap); + +int pfkey_x_protocol_build(struct sadb_ext **, uint8_t); + + +int +pfkey_prop_build(struct sadb_ext** pfkey_ext, + uint8_t replay, + unsigned int comb_num, + struct sadb_comb* comb); + +int +pfkey_supported_build(struct sadb_ext** pfkey_ext, + uint16_t exttype, + unsigned int alg_num, + struct sadb_alg* alg); + +int +pfkey_spirange_build(struct sadb_ext** pfkey_ext, + uint16_t exttype, + uint32_t min, + uint32_t max); + +int +pfkey_x_kmprivate_build(struct sadb_ext** pfkey_ext); + +int +pfkey_x_satype_build(struct sadb_ext** pfkey_ext, + uint8_t satype); + +int +pfkey_x_debug_build(struct sadb_ext** pfkey_ext, + uint32_t tunnel, + uint32_t netlink, + uint32_t xform, + uint32_t eroute, + uint32_t spi, + uint32_t radij, + uint32_t esp, + uint32_t ah, + uint32_t rcv, + uint32_t pfkey, + uint32_t ipcomp, + uint32_t verbose); + +int +pfkey_msg_build(struct sadb_msg** pfkey_msg, + struct sadb_ext* extensions[], + int dir); + +/* in pfkey_v2_debug.c - routines to decode numbers -> strings */ +const char * +pfkey_v2_sadb_ext_string(int extnum); + +const char * +pfkey_v2_sadb_type_string(int sadb_type); + + +#endif /* __NET_IPSEC_PF_KEY_H */ + +/* + * $Log: pfkey.h,v $ + * Revision 1.49 2005/05/11 00:57:29 mcr + * rename struct supported -> struct ipsec_alg_supported. + * make pfkey.h more standalone. + * + * Revision 1.48 2005/05/01 03:12:50 mcr + * include name of algorithm in datastructure. + * + * Revision 1.47 2004/08/21 00:44:14 mcr + * simplify definition of nat_t related prototypes. + * + * Revision 1.46 2004/08/04 16:27:22 mcr + * 2.6 sk_ options. + * + * Revision 1.45 2004/04/06 02:49:00 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.44 2003/12/10 01:20:01 mcr + * NAT-traversal patches to KLIPS. + * + * Revision 1.43 2003/10/31 02:26:44 mcr + * pulled up port-selector patches. + * + * Revision 1.42.2.2 2003/10/29 01:09:32 mcr + * added debugging for pfkey library. + * + * Revision 1.42.2.1 2003/09/21 13:59:34 mcr + * pre-liminary X.509 patch - does not yet pass tests. + * + * Revision 1.42 2003/08/25 22:08:19 mcr + * removed pfkey_proto_init() from pfkey.h for 2.6 support. + * + * Revision 1.41 2003/05/07 17:28:57 mcr + * new function pfkey_debug_func added for us in debugging from + + * pfkey library. + * + * Revision 1.40 2003/01/30 02:31:34 rgb + * + * Convert IPsecSAref_t from signed to unsigned to fix apparent SAref exhaustion bug. + * + * Revision 1.39 2002/09/20 15:40:21 rgb + * Switch from pfkey_alloc_ipsec_sa() to ipsec_sa_alloc(). + * Added ref parameter to pfkey_sa_build(). + * Cleaned out unused cruft. + * + * Revision 1.38 2002/05/14 02:37:24 rgb + * Change all references to tdb, TDB or Tunnel Descriptor Block to ips, + * ipsec_sa or ipsec_sa. + * Added function prototypes for the functions moved to + * pfkey_v2_ext_process.c. + * + * Revision 1.37 2002/04/24 07:36:49 mcr + * Moved from ./lib/pfkey.h,v + * + * Revision 1.36 2002/01/20 20:34:49 mcr + * added pfkey_v2_sadb_type_string to decode sadb_type to string. + * + * Revision 1.35 2001/11/27 05:27:47 mcr + * pfkey parses are now maintained by a structure + * that includes their name for debug purposes. + * + * Revision 1.34 2001/11/26 09:23:53 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.33 2001/11/06 19:47:47 rgb + * Added packet parameter to lifetime and comb structures. + * + * Revision 1.32 2001/09/08 21:13:34 rgb + * Added pfkey ident extension support for ISAKMPd. (NetCelo) + * + * Revision 1.31 2001/06/14 19:35:16 rgb + * Update copyright date. + * + * Revision 1.30 2001/02/27 07:04:52 rgb + * Added satype2name prototype. + * + * Revision 1.29 2001/02/26 19:59:33 rgb + * Ditch unused sadb_satype2proto[], replaced by satype2proto(). + * + * Revision 1.28 2000/10/10 20:10:19 rgb + * Added support for debug_ipcomp and debug_verbose to klipsdebug. + * + * Revision 1.27 2000/09/21 04:20:45 rgb + * Fixed array size off-by-one error. (Thanks Svenning!) + * + * Revision 1.26 2000/09/12 03:26:05 rgb + * Added pfkey_acquire prototype. + * + * Revision 1.25 2000/09/08 19:21:28 rgb + * Fix pfkey_prop_build() parameter to be only single indirection. + * + * Revision 1.24 2000/09/01 18:46:42 rgb + * Added a supported algorithms array lists, one per satype and registered + * existing algorithms. + * Fixed pfkey_list_{insert,remove}_{socket,support}() to allow change to + * list. + * + * Revision 1.23 2000/08/27 01:55:26 rgb + * Define OCTETBITS and PFKEYBITS to avoid using 'magic' numbers in code. + * + * Revision 1.22 2000/08/20 21:39:23 rgb + * Added kernel prototypes for kernel funcitions pfkey_upmsg() and + * pfkey_expire(). + * + * Revision 1.21 2000/08/15 17:29:23 rgb + * Fixes from SZI to untested pfkey_prop_build(). + * + * Revision 1.20 2000/05/10 20:14:19 rgb + * Fleshed out sensitivity, proposal and supported extensions. + * + * Revision 1.19 2000/03/16 14:07:23 rgb + * Renamed ALIGN macro to avoid fighting with others in kernel. + * + * Revision 1.18 2000/01/22 23:24:06 rgb + * Added prototypes for proto2satype(), satype2proto() and proto2name(). + * + * Revision 1.17 2000/01/21 06:26:59 rgb + * Converted from double tdb arguments to one structure (extr) + * containing pointers to all temporary information structures. + * Added klipsdebug switching capability. + * Dropped unused argument to pfkey_x_satype_build(). + * + * Revision 1.16 1999/12/29 21:17:41 rgb + * Changed pfkey_msg_build() I/F to include a struct sadb_msg** + * parameter for cleaner manipulation of extensions[] and to guard + * against potential memory leaks. + * Changed the I/F to pfkey_msg_free() for the same reason. + * + * Revision 1.15 1999/12/09 23:12:54 rgb + * Added macro for BITS_PER_OCTET. + * Added argument to pfkey_sa_build() to do eroutes. + * + * Revision 1.14 1999/12/08 20:33:25 rgb + * Changed sa_family_t to uint16_t for 2.0.xx compatibility. + * + * Revision 1.13 1999/12/07 19:53:40 rgb + * Removed unused first argument from extension parsers. + * Changed __u* types to uint* to avoid use of asm/types.h and + * sys/types.h in userspace code. + * Added function prototypes for pfkey message and extensions + * initialisation and cleanup. + * + * Revision 1.12 1999/12/01 22:19:38 rgb + * Change pfkey_sa_build to accept an SPI in network byte order. + * + * Revision 1.11 1999/11/27 11:55:26 rgb + * Added extern sadb_satype2proto to enable moving protocol lookup table + * to lib/pfkey_v2_parse.c. + * Delete unused, moved typedefs. + * Add argument to pfkey_msg_parse() for direction. + * Consolidated the 4 1-d extension bitmap arrays into one 4-d array. + * + * Revision 1.10 1999/11/23 22:29:21 rgb + * This file has been moved in the distribution from klips/net/ipsec to + * lib. + * Add macros for dealing with alignment and rounding up more opaquely. + * The uint_t type defines have been moved to freeswan.h to avoid + * chicken-and-egg problems. + * Add macros for dealing with alignment and rounding up more opaque. + * Added prototypes for using extention header bitmaps. + * Added prototypes of all the build functions. + * + * Revision 1.9 1999/11/20 21:59:48 rgb + * Moved socketlist type declarations and prototypes for shared use. + * Slightly modified scope of sockaddr_key declaration. + * + * Revision 1.8 1999/11/17 14:34:25 rgb + * Protect sa_family_t from being used in userspace with GLIBC<2. + * + * Revision 1.7 1999/10/27 19:40:35 rgb + * Add a maximum PFKEY packet size macro. + * + * Revision 1.6 1999/10/26 16:58:58 rgb + * Created a sockaddr_key and key_opt socket extension structures. + * + * Revision 1.5 1999/06/10 05:24:41 rgb + * Renamed variables to reduce confusion. + * + * Revision 1.4 1999/04/29 15:21:11 rgb + * Add pfkey support to debugging. + * Add return values to init and cleanup functions. + * + * Revision 1.3 1999/04/15 17:58:07 rgb + * Add RCSID labels. + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/pfkeyv2.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,472 @@ +/* + * RCSID $Id: pfkeyv2.h,v 1.31 2005/04/14 01:14:54 mcr Exp $ + */ + +/* +RFC 2367 PF_KEY Key Management API July 1998 + + +Appendix D: Sample Header File + +This file defines structures and symbols for the PF_KEY Version 2 +key management interface. It was written at the U.S. Naval Research +Laboratory. This file is in the public domain. The authors ask that +you leave this credit intact on any copies of this file. +*/ +#ifndef __PFKEY_V2_H +#define __PFKEY_V2_H 1 + +#define PF_KEY_V2 2 +#define PFKEYV2_REVISION 199806L + +#define SADB_RESERVED 0 +#define SADB_GETSPI 1 +#define SADB_UPDATE 2 +#define SADB_ADD 3 +#define SADB_DELETE 4 +#define SADB_GET 5 +#define SADB_ACQUIRE 6 +#define SADB_REGISTER 7 +#define SADB_EXPIRE 8 +#define SADB_FLUSH 9 +#define SADB_DUMP 10 +#define SADB_X_PROMISC 11 +#define SADB_X_PCHANGE 12 +#define SADB_X_GRPSA 13 +#define SADB_X_ADDFLOW 14 +#define SADB_X_DELFLOW 15 +#define SADB_X_DEBUG 16 +#define SADB_X_NAT_T_NEW_MAPPING 17 +#define SADB_MAX 17 + +struct sadb_msg { + uint8_t sadb_msg_version; + uint8_t sadb_msg_type; + uint8_t sadb_msg_errno; + uint8_t sadb_msg_satype; + uint16_t sadb_msg_len; + uint16_t sadb_msg_reserved; + uint32_t sadb_msg_seq; + uint32_t sadb_msg_pid; +}; + +struct sadb_ext { + uint16_t sadb_ext_len; + uint16_t sadb_ext_type; +}; + +struct sadb_sa { + uint16_t sadb_sa_len; + uint16_t sadb_sa_exttype; + uint32_t sadb_sa_spi; + uint8_t sadb_sa_replay; + uint8_t sadb_sa_state; + uint8_t sadb_sa_auth; + uint8_t sadb_sa_encrypt; + uint32_t sadb_sa_flags; + uint32_t /*IPsecSAref_t*/ sadb_x_sa_ref; /* 32 bits */ + uint8_t sadb_x_reserved[4]; +}; + +struct sadb_sa_v1 { + uint16_t sadb_sa_len; + uint16_t sadb_sa_exttype; + uint32_t sadb_sa_spi; + uint8_t sadb_sa_replay; + uint8_t sadb_sa_state; + uint8_t sadb_sa_auth; + uint8_t sadb_sa_encrypt; + uint32_t sadb_sa_flags; +}; + +struct sadb_lifetime { + uint16_t sadb_lifetime_len; + uint16_t sadb_lifetime_exttype; + uint32_t sadb_lifetime_allocations; + uint64_t sadb_lifetime_bytes; + uint64_t sadb_lifetime_addtime; + uint64_t sadb_lifetime_usetime; + uint32_t sadb_x_lifetime_packets; + uint32_t sadb_x_lifetime_reserved; +}; + +struct sadb_address { + uint16_t sadb_address_len; + uint16_t sadb_address_exttype; + uint8_t sadb_address_proto; + uint8_t sadb_address_prefixlen; + uint16_t sadb_address_reserved; +}; + +struct sadb_key { + uint16_t sadb_key_len; + uint16_t sadb_key_exttype; + uint16_t sadb_key_bits; + uint16_t sadb_key_reserved; +}; + +struct sadb_ident { + uint16_t sadb_ident_len; + uint16_t sadb_ident_exttype; + uint16_t sadb_ident_type; + uint16_t sadb_ident_reserved; + uint64_t sadb_ident_id; +}; + +struct sadb_sens { + uint16_t sadb_sens_len; + uint16_t sadb_sens_exttype; + uint32_t sadb_sens_dpd; + uint8_t sadb_sens_sens_level; + uint8_t sadb_sens_sens_len; + uint8_t sadb_sens_integ_level; + uint8_t sadb_sens_integ_len; + uint32_t sadb_sens_reserved; +}; + +struct sadb_prop { + uint16_t sadb_prop_len; + uint16_t sadb_prop_exttype; + uint8_t sadb_prop_replay; + uint8_t sadb_prop_reserved[3]; +}; + +struct sadb_comb { + uint8_t sadb_comb_auth; + uint8_t sadb_comb_encrypt; + uint16_t sadb_comb_flags; + uint16_t sadb_comb_auth_minbits; + uint16_t sadb_comb_auth_maxbits; + uint16_t sadb_comb_encrypt_minbits; + uint16_t sadb_comb_encrypt_maxbits; + uint32_t sadb_comb_reserved; + uint32_t sadb_comb_soft_allocations; + uint32_t sadb_comb_hard_allocations; + uint64_t sadb_comb_soft_bytes; + uint64_t sadb_comb_hard_bytes; + uint64_t sadb_comb_soft_addtime; + uint64_t sadb_comb_hard_addtime; + uint64_t sadb_comb_soft_usetime; + uint64_t sadb_comb_hard_usetime; + uint32_t sadb_x_comb_soft_packets; + uint32_t sadb_x_comb_hard_packets; +}; + +struct sadb_supported { + uint16_t sadb_supported_len; + uint16_t sadb_supported_exttype; + uint32_t sadb_supported_reserved; +}; + +struct sadb_alg { + uint8_t sadb_alg_id; + uint8_t sadb_alg_ivlen; + uint16_t sadb_alg_minbits; + uint16_t sadb_alg_maxbits; + uint16_t sadb_alg_reserved; +}; + +struct sadb_spirange { + uint16_t sadb_spirange_len; + uint16_t sadb_spirange_exttype; + uint32_t sadb_spirange_min; + uint32_t sadb_spirange_max; + uint32_t sadb_spirange_reserved; +}; + +struct sadb_x_kmprivate { + uint16_t sadb_x_kmprivate_len; + uint16_t sadb_x_kmprivate_exttype; + uint32_t sadb_x_kmprivate_reserved; +}; + +struct sadb_x_satype { + uint16_t sadb_x_satype_len; + uint16_t sadb_x_satype_exttype; + uint8_t sadb_x_satype_satype; + uint8_t sadb_x_satype_reserved[3]; +}; + +struct sadb_x_policy { + uint16_t sadb_x_policy_len; + uint16_t sadb_x_policy_exttype; + uint16_t sadb_x_policy_type; + uint8_t sadb_x_policy_dir; + uint8_t sadb_x_policy_reserved; + uint32_t sadb_x_policy_id; + uint32_t sadb_x_policy_reserved2; +}; + +struct sadb_x_debug { + uint16_t sadb_x_debug_len; + uint16_t sadb_x_debug_exttype; + uint32_t sadb_x_debug_tunnel; + uint32_t sadb_x_debug_netlink; + uint32_t sadb_x_debug_xform; + uint32_t sadb_x_debug_eroute; + uint32_t sadb_x_debug_spi; + uint32_t sadb_x_debug_radij; + uint32_t sadb_x_debug_esp; + uint32_t sadb_x_debug_ah; + uint32_t sadb_x_debug_rcv; + uint32_t sadb_x_debug_pfkey; + uint32_t sadb_x_debug_ipcomp; + uint32_t sadb_x_debug_verbose; + uint8_t sadb_x_debug_reserved[4]; +}; + +struct sadb_x_nat_t_type { + uint16_t sadb_x_nat_t_type_len; + uint16_t sadb_x_nat_t_type_exttype; + uint8_t sadb_x_nat_t_type_type; + uint8_t sadb_x_nat_t_type_reserved[3]; +}; +struct sadb_x_nat_t_port { + uint16_t sadb_x_nat_t_port_len; + uint16_t sadb_x_nat_t_port_exttype; + uint16_t sadb_x_nat_t_port_port; + uint16_t sadb_x_nat_t_port_reserved; +}; + +/* + * A protocol structure for passing through the transport level + * protocol. It contains more fields than are actually used/needed + * but it is this way to be compatible with the structure used in + * OpenBSD (http://www.openbsd.org/cgi-bin/cvsweb/src/sys/net/pfkeyv2.h) + */ +struct sadb_protocol { + uint16_t sadb_protocol_len; + uint16_t sadb_protocol_exttype; + uint8_t sadb_protocol_proto; + uint8_t sadb_protocol_direction; + uint8_t sadb_protocol_flags; + uint8_t sadb_protocol_reserved2; +}; + +#define SADB_EXT_RESERVED 0 +#define SADB_EXT_SA 1 +#define SADB_EXT_LIFETIME_CURRENT 2 +#define SADB_EXT_LIFETIME_HARD 3 +#define SADB_EXT_LIFETIME_SOFT 4 +#define SADB_EXT_ADDRESS_SRC 5 +#define SADB_EXT_ADDRESS_DST 6 +#define SADB_EXT_ADDRESS_PROXY 7 +#define SADB_EXT_KEY_AUTH 8 +#define SADB_EXT_KEY_ENCRYPT 9 +#define SADB_EXT_IDENTITY_SRC 10 +#define SADB_EXT_IDENTITY_DST 11 +#define SADB_EXT_SENSITIVITY 12 +#define SADB_EXT_PROPOSAL 13 +#define SADB_EXT_SUPPORTED_AUTH 14 +#define SADB_EXT_SUPPORTED_ENCRYPT 15 +#define SADB_EXT_SPIRANGE 16 +#define SADB_X_EXT_KMPRIVATE 17 +#define SADB_X_EXT_SATYPE2 18 +#ifdef KERNEL26_HAS_KAME_DUPLICATES +#define SADB_X_EXT_POLICY 18 +#endif +#define SADB_X_EXT_SA2 19 +#define SADB_X_EXT_ADDRESS_DST2 20 +#define SADB_X_EXT_ADDRESS_SRC_FLOW 21 +#define SADB_X_EXT_ADDRESS_DST_FLOW 22 +#define SADB_X_EXT_ADDRESS_SRC_MASK 23 +#define SADB_X_EXT_ADDRESS_DST_MASK 24 +#define SADB_X_EXT_DEBUG 25 +#define SADB_X_EXT_PROTOCOL 26 +#define SADB_X_EXT_NAT_T_TYPE 27 +#define SADB_X_EXT_NAT_T_SPORT 28 +#define SADB_X_EXT_NAT_T_DPORT 29 +#define SADB_X_EXT_NAT_T_OA 30 +#define SADB_EXT_MAX 30 + +/* SADB_X_DELFLOW required over and above SADB_X_SAFLAGS_CLEARFLOW */ +#define SADB_X_EXT_ADDRESS_DELFLOW \ + ( (1< +# define ZEXPORT WINAPI +# ifdef WIN32 +# define ZEXPORTVA WINAPIV +# else +# define ZEXPORTVA FAR _cdecl _export +# endif +# endif +# if defined (__BORLANDC__) +# if (__BORLANDC__ >= 0x0500) && defined (WIN32) +# include +# define ZEXPORT __declspec(dllexport) WINAPI +# define ZEXPORTRVA __declspec(dllexport) WINAPIV +# else +# if defined (_Windows) && defined (__DLL__) +# define ZEXPORT _export +# define ZEXPORTVA _export +# endif +# endif +# endif +#endif + +#if defined (__BEOS__) +# if defined (ZLIB_DLL) +# define ZEXTERN extern __declspec(dllexport) +# else +# define ZEXTERN extern __declspec(dllimport) +# endif +#endif + +#ifndef ZEXPORT +# define ZEXPORT +#endif +#ifndef ZEXPORTVA +# define ZEXPORTVA +#endif +#ifndef ZEXTERN +# define ZEXTERN extern +#endif + +#ifndef FAR +# define FAR +#endif + +#if !defined(MACOS) && !defined(TARGET_OS_MAC) +typedef unsigned char Byte; /* 8 bits */ +#endif +typedef unsigned int uInt; /* 16 bits or more */ +typedef unsigned long uLong; /* 32 bits or more */ + +#ifdef SMALL_MEDIUM + /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ +# define Bytef Byte FAR +#else + typedef Byte FAR Bytef; +#endif +typedef char FAR charf; +typedef int FAR intf; +typedef uInt FAR uIntf; +typedef uLong FAR uLongf; + +#ifdef STDC + typedef void FAR *voidpf; + typedef void *voidp; +#else + typedef Byte FAR *voidpf; + typedef Byte *voidp; +#endif + +#ifdef HAVE_UNISTD_H +# include /* for off_t */ +# include /* for SEEK_* and off_t */ +# define z_off_t off_t +#endif +#ifndef SEEK_SET +# define SEEK_SET 0 /* Seek from beginning of file. */ +# define SEEK_CUR 1 /* Seek from current position. */ +# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ +#endif +#ifndef z_off_t +# define z_off_t long +#endif + +/* MVS linker does not support external names larger than 8 bytes */ +#if defined(__MVS__) +# pragma map(deflateInit_,"DEIN") +# pragma map(deflateInit2_,"DEIN2") +# pragma map(deflateEnd,"DEEND") +# pragma map(inflateInit_,"ININ") +# pragma map(inflateInit2_,"ININ2") +# pragma map(inflateEnd,"INEND") +# pragma map(inflateSync,"INSY") +# pragma map(inflateSetDictionary,"INSEDI") +# pragma map(inflate_blocks,"INBL") +# pragma map(inflate_blocks_new,"INBLNE") +# pragma map(inflate_blocks_free,"INBLFR") +# pragma map(inflate_blocks_reset,"INBLRE") +# pragma map(inflate_codes_free,"INCOFR") +# pragma map(inflate_codes,"INCO") +# pragma map(inflate_fast,"INFA") +# pragma map(inflate_flush,"INFLU") +# pragma map(inflate_mask,"INMA") +# pragma map(inflate_set_dictionary,"INSEDI2") +# pragma map(ipcomp_inflate_copyright,"INCOPY") +# pragma map(inflate_trees_bits,"INTRBI") +# pragma map(inflate_trees_dynamic,"INTRDY") +# pragma map(inflate_trees_fixed,"INTRFI") +# pragma map(inflate_trees_free,"INTRFR") +#endif + +#endif /* _ZCONF_H */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/zlib/zlib.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,893 @@ +/* zlib.h -- interface of the 'zlib' general purpose compression library + version 1.1.4, March 11th, 2002 + + Copyright (C) 1995-2002 Jean-loup Gailly and Mark Adler + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + + Jean-loup Gailly Mark Adler + jloup@gzip.org madler@alumni.caltech.edu + + + The data format used by the zlib library is described by RFCs (Request for + Comments) 1950 to 1952 in the files ftp://ds.internic.net/rfc/rfc1950.txt + (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format). +*/ + +#ifndef _ZLIB_H +#define _ZLIB_H + +#include "zconf.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define ZLIB_VERSION "1.1.4" + +/* + The 'zlib' compression library provides in-memory compression and + decompression functions, including integrity checks of the uncompressed + data. This version of the library supports only one compression method + (deflation) but other algorithms will be added later and will have the same + stream interface. + + Compression can be done in a single step if the buffers are large + enough (for example if an input file is mmap'ed), or can be done by + repeated calls of the compression function. In the latter case, the + application must provide more input and/or consume the output + (providing more output space) before each call. + + The library also supports reading and writing files in gzip (.gz) format + with an interface similar to that of stdio. + + The library does not install any signal handler. The decoder checks + the consistency of the compressed data, so the library should never + crash even in case of corrupted input. +*/ + +typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size)); +typedef void (*free_func) OF((voidpf opaque, voidpf address)); + +struct internal_state; + +typedef struct z_stream_s { + Bytef *next_in; /* next input byte */ + uInt avail_in; /* number of bytes available at next_in */ + uLong total_in; /* total nb of input bytes read so far */ + + Bytef *next_out; /* next output byte should be put there */ + uInt avail_out; /* remaining free space at next_out */ + uLong total_out; /* total nb of bytes output so far */ + + const char *msg; /* last error message, NULL if no error */ + struct internal_state FAR *state; /* not visible by applications */ + + alloc_func zalloc; /* used to allocate the internal state */ + free_func zfree; /* used to free the internal state */ + voidpf opaque; /* private data object passed to zalloc and zfree */ + + int data_type; /* best guess about the data type: ascii or binary */ + uLong adler; /* adler32 value of the uncompressed data */ + uLong reserved; /* reserved for future use */ +} z_stream; + +typedef z_stream FAR *z_streamp; + +/* + The application must update next_in and avail_in when avail_in has + dropped to zero. It must update next_out and avail_out when avail_out + has dropped to zero. The application must initialize zalloc, zfree and + opaque before calling the init function. All other fields are set by the + compression library and must not be updated by the application. + + The opaque value provided by the application will be passed as the first + parameter for calls of zalloc and zfree. This can be useful for custom + memory management. The compression library attaches no meaning to the + opaque value. + + zalloc must return Z_NULL if there is not enough memory for the object. + If zlib is used in a multi-threaded application, zalloc and zfree must be + thread safe. + + On 16-bit systems, the functions zalloc and zfree must be able to allocate + exactly 65536 bytes, but will not be required to allocate more than this + if the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS, + pointers returned by zalloc for objects of exactly 65536 bytes *must* + have their offset normalized to zero. The default allocation function + provided by this library ensures this (see zutil.c). To reduce memory + requirements and avoid any allocation of 64K objects, at the expense of + compression ratio, compile the library with -DMAX_WBITS=14 (see zconf.h). + + The fields total_in and total_out can be used for statistics or + progress reports. After compression, total_in holds the total size of + the uncompressed data and may be saved for use in the decompressor + (particularly if the decompressor wants to decompress everything in + a single step). +*/ + + /* constants */ + +#define Z_NO_FLUSH 0 +#define Z_PARTIAL_FLUSH 1 /* will be removed, use Z_SYNC_FLUSH instead */ +#define Z_SYNC_FLUSH 2 +#define Z_FULL_FLUSH 3 +#define Z_FINISH 4 +/* Allowed flush values; see deflate() below for details */ + +#define Z_OK 0 +#define Z_STREAM_END 1 +#define Z_NEED_DICT 2 +#define Z_ERRNO (-1) +#define Z_STREAM_ERROR (-2) +#define Z_DATA_ERROR (-3) +#define Z_MEM_ERROR (-4) +#define Z_BUF_ERROR (-5) +#define Z_VERSION_ERROR (-6) +/* Return codes for the compression/decompression functions. Negative + * values are errors, positive values are used for special but normal events. + */ + +#define Z_NO_COMPRESSION 0 +#define Z_BEST_SPEED 1 +#define Z_BEST_COMPRESSION 9 +#define Z_DEFAULT_COMPRESSION (-1) +/* compression levels */ + +#define Z_FILTERED 1 +#define Z_HUFFMAN_ONLY 2 +#define Z_DEFAULT_STRATEGY 0 +/* compression strategy; see deflateInit2() below for details */ + +#define Z_BINARY 0 +#define Z_ASCII 1 +#define Z_UNKNOWN 2 +/* Possible values of the data_type field */ + +#define Z_DEFLATED 8 +/* The deflate compression method (the only one supported in this version) */ + +#define Z_NULL 0 /* for initializing zalloc, zfree, opaque */ + +#define zlib_version zlibVersion() +/* for compatibility with versions < 1.0.2 */ + + /* basic functions */ + +ZEXTERN const char * ZEXPORT zlibVersion OF((void)); +/* The application can compare zlibVersion and ZLIB_VERSION for consistency. + If the first character differs, the library code actually used is + not compatible with the zlib.h header file used by the application. + This check is automatically made by deflateInit and inflateInit. + */ + +/* +ZEXTERN int ZEXPORT deflateInit OF((z_streamp strm, int level)); + + Initializes the internal stream state for compression. The fields + zalloc, zfree and opaque must be initialized before by the caller. + If zalloc and zfree are set to Z_NULL, deflateInit updates them to + use default allocation functions. + + The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9: + 1 gives best speed, 9 gives best compression, 0 gives no compression at + all (the input data is simply copied a block at a time). + Z_DEFAULT_COMPRESSION requests a default compromise between speed and + compression (currently equivalent to level 6). + + deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not + enough memory, Z_STREAM_ERROR if level is not a valid compression level, + Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible + with the version assumed by the caller (ZLIB_VERSION). + msg is set to null if there is no error message. deflateInit does not + perform any compression: this will be done by deflate(). +*/ + + +ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush)); +/* + deflate compresses as much data as possible, and stops when the input + buffer becomes empty or the output buffer becomes full. It may introduce some + output latency (reading input without producing any output) except when + forced to flush. + + The detailed semantics are as follows. deflate performs one or both of the + following actions: + + - Compress more input starting at next_in and update next_in and avail_in + accordingly. If not all input can be processed (because there is not + enough room in the output buffer), next_in and avail_in are updated and + processing will resume at this point for the next call of deflate(). + + - Provide more output starting at next_out and update next_out and avail_out + accordingly. This action is forced if the parameter flush is non zero. + Forcing flush frequently degrades the compression ratio, so this parameter + should be set only when necessary (in interactive applications). + Some output may be provided even if flush is not set. + + Before the call of deflate(), the application should ensure that at least + one of the actions is possible, by providing more input and/or consuming + more output, and updating avail_in or avail_out accordingly; avail_out + should never be zero before the call. The application can consume the + compressed output when it wants, for example when the output buffer is full + (avail_out == 0), or after each call of deflate(). If deflate returns Z_OK + and with zero avail_out, it must be called again after making room in the + output buffer because there might be more output pending. + + If the parameter flush is set to Z_SYNC_FLUSH, all pending output is + flushed to the output buffer and the output is aligned on a byte boundary, so + that the decompressor can get all input data available so far. (In particular + avail_in is zero after the call if enough output space has been provided + before the call.) Flushing may degrade compression for some compression + algorithms and so it should be used only when necessary. + + If flush is set to Z_FULL_FLUSH, all output is flushed as with + Z_SYNC_FLUSH, and the compression state is reset so that decompression can + restart from this point if previous compressed data has been damaged or if + random access is desired. Using Z_FULL_FLUSH too often can seriously degrade + the compression. + + If deflate returns with avail_out == 0, this function must be called again + with the same value of the flush parameter and more output space (updated + avail_out), until the flush is complete (deflate returns with non-zero + avail_out). + + If the parameter flush is set to Z_FINISH, pending input is processed, + pending output is flushed and deflate returns with Z_STREAM_END if there + was enough output space; if deflate returns with Z_OK, this function must be + called again with Z_FINISH and more output space (updated avail_out) but no + more input data, until it returns with Z_STREAM_END or an error. After + deflate has returned Z_STREAM_END, the only possible operations on the + stream are deflateReset or deflateEnd. + + Z_FINISH can be used immediately after deflateInit if all the compression + is to be done in a single step. In this case, avail_out must be at least + 0.1% larger than avail_in plus 12 bytes. If deflate does not return + Z_STREAM_END, then it must be called again as described above. + + deflate() sets strm->adler to the adler32 checksum of all input read + so far (that is, total_in bytes). + + deflate() may update data_type if it can make a good guess about + the input data type (Z_ASCII or Z_BINARY). In doubt, the data is considered + binary. This field is only for information purposes and does not affect + the compression algorithm in any manner. + + deflate() returns Z_OK if some progress has been made (more input + processed or more output produced), Z_STREAM_END if all input has been + consumed and all output has been produced (only when flush is set to + Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example + if next_in or next_out was NULL), Z_BUF_ERROR if no progress is possible + (for example avail_in or avail_out was zero). +*/ + + +ZEXTERN int ZEXPORT deflateEnd OF((z_streamp strm)); +/* + All dynamically allocated data structures for this stream are freed. + This function discards any unprocessed input and does not flush any + pending output. + + deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the + stream state was inconsistent, Z_DATA_ERROR if the stream was freed + prematurely (some input or output was discarded). In the error case, + msg may be set but then points to a static string (which must not be + deallocated). +*/ + + +/* +ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm)); + + Initializes the internal stream state for decompression. The fields + next_in, avail_in, zalloc, zfree and opaque must be initialized before by + the caller. If next_in is not Z_NULL and avail_in is large enough (the exact + value depends on the compression method), inflateInit determines the + compression method from the zlib header and allocates all data structures + accordingly; otherwise the allocation will be deferred to the first call of + inflate. If zalloc and zfree are set to Z_NULL, inflateInit updates them to + use default allocation functions. + + inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough + memory, Z_VERSION_ERROR if the zlib library version is incompatible with the + version assumed by the caller. msg is set to null if there is no error + message. inflateInit does not perform any decompression apart from reading + the zlib header if present: this will be done by inflate(). (So next_in and + avail_in may be modified, but next_out and avail_out are unchanged.) +*/ + + +ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush)); +/* + inflate decompresses as much data as possible, and stops when the input + buffer becomes empty or the output buffer becomes full. It may some + introduce some output latency (reading input without producing any output) + except when forced to flush. + + The detailed semantics are as follows. inflate performs one or both of the + following actions: + + - Decompress more input starting at next_in and update next_in and avail_in + accordingly. If not all input can be processed (because there is not + enough room in the output buffer), next_in is updated and processing + will resume at this point for the next call of inflate(). + + - Provide more output starting at next_out and update next_out and avail_out + accordingly. inflate() provides as much output as possible, until there + is no more input data or no more space in the output buffer (see below + about the flush parameter). + + Before the call of inflate(), the application should ensure that at least + one of the actions is possible, by providing more input and/or consuming + more output, and updating the next_* and avail_* values accordingly. + The application can consume the uncompressed output when it wants, for + example when the output buffer is full (avail_out == 0), or after each + call of inflate(). If inflate returns Z_OK and with zero avail_out, it + must be called again after making room in the output buffer because there + might be more output pending. + + If the parameter flush is set to Z_SYNC_FLUSH, inflate flushes as much + output as possible to the output buffer. The flushing behavior of inflate is + not specified for values of the flush parameter other than Z_SYNC_FLUSH + and Z_FINISH, but the current implementation actually flushes as much output + as possible anyway. + + inflate() should normally be called until it returns Z_STREAM_END or an + error. However if all decompression is to be performed in a single step + (a single call of inflate), the parameter flush should be set to + Z_FINISH. In this case all pending input is processed and all pending + output is flushed; avail_out must be large enough to hold all the + uncompressed data. (The size of the uncompressed data may have been saved + by the compressor for this purpose.) The next operation on this stream must + be inflateEnd to deallocate the decompression state. The use of Z_FINISH + is never required, but can be used to inform inflate that a faster routine + may be used for the single inflate() call. + + If a preset dictionary is needed at this point (see inflateSetDictionary + below), inflate sets strm-adler to the adler32 checksum of the + dictionary chosen by the compressor and returns Z_NEED_DICT; otherwise + it sets strm->adler to the adler32 checksum of all output produced + so far (that is, total_out bytes) and returns Z_OK, Z_STREAM_END or + an error code as described below. At the end of the stream, inflate() + checks that its computed adler32 checksum is equal to that saved by the + compressor and returns Z_STREAM_END only if the checksum is correct. + + inflate() returns Z_OK if some progress has been made (more input processed + or more output produced), Z_STREAM_END if the end of the compressed data has + been reached and all uncompressed output has been produced, Z_NEED_DICT if a + preset dictionary is needed at this point, Z_DATA_ERROR if the input data was + corrupted (input stream not conforming to the zlib format or incorrect + adler32 checksum), Z_STREAM_ERROR if the stream structure was inconsistent + (for example if next_in or next_out was NULL), Z_MEM_ERROR if there was not + enough memory, Z_BUF_ERROR if no progress is possible or if there was not + enough room in the output buffer when Z_FINISH is used. In the Z_DATA_ERROR + case, the application may then call inflateSync to look for a good + compression block. +*/ + + +ZEXTERN int ZEXPORT inflateEnd OF((z_streamp strm)); +/* + All dynamically allocated data structures for this stream are freed. + This function discards any unprocessed input and does not flush any + pending output. + + inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state + was inconsistent. In the error case, msg may be set but then points to a + static string (which must not be deallocated). +*/ + + /* Advanced functions */ + +/* + The following functions are needed only in some special applications. +*/ + +/* +ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm, + int level, + int method, + int windowBits, + int memLevel, + int strategy)); + + This is another version of deflateInit with more compression options. The + fields next_in, zalloc, zfree and opaque must be initialized before by + the caller. + + The method parameter is the compression method. It must be Z_DEFLATED in + this version of the library. + + The windowBits parameter is the base two logarithm of the window size + (the size of the history buffer). It should be in the range 8..15 for this + version of the library. Larger values of this parameter result in better + compression at the expense of memory usage. The default value is 15 if + deflateInit is used instead. + + The memLevel parameter specifies how much memory should be allocated + for the internal compression state. memLevel=1 uses minimum memory but + is slow and reduces compression ratio; memLevel=9 uses maximum memory + for optimal speed. The default value is 8. See zconf.h for total memory + usage as a function of windowBits and memLevel. + + The strategy parameter is used to tune the compression algorithm. Use the + value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a + filter (or predictor), or Z_HUFFMAN_ONLY to force Huffman encoding only (no + string match). Filtered data consists mostly of small values with a + somewhat random distribution. In this case, the compression algorithm is + tuned to compress them better. The effect of Z_FILTERED is to force more + Huffman coding and less string matching; it is somewhat intermediate + between Z_DEFAULT and Z_HUFFMAN_ONLY. The strategy parameter only affects + the compression ratio but not the correctness of the compressed output even + if it is not set appropriately. + + deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough + memory, Z_STREAM_ERROR if a parameter is invalid (such as an invalid + method). msg is set to null if there is no error message. deflateInit2 does + not perform any compression: this will be done by deflate(). +*/ + +ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm, + const Bytef *dictionary, + uInt dictLength)); +/* + Initializes the compression dictionary from the given byte sequence + without producing any compressed output. This function must be called + immediately after deflateInit, deflateInit2 or deflateReset, before any + call of deflate. The compressor and decompressor must use exactly the same + dictionary (see inflateSetDictionary). + + The dictionary should consist of strings (byte sequences) that are likely + to be encountered later in the data to be compressed, with the most commonly + used strings preferably put towards the end of the dictionary. Using a + dictionary is most useful when the data to be compressed is short and can be + predicted with good accuracy; the data can then be compressed better than + with the default empty dictionary. + + Depending on the size of the compression data structures selected by + deflateInit or deflateInit2, a part of the dictionary may in effect be + discarded, for example if the dictionary is larger than the window size in + deflate or deflate2. Thus the strings most likely to be useful should be + put at the end of the dictionary, not at the front. + + Upon return of this function, strm->adler is set to the Adler32 value + of the dictionary; the decompressor may later use this value to determine + which dictionary has been used by the compressor. (The Adler32 value + applies to the whole dictionary even if only a subset of the dictionary is + actually used by the compressor.) + + deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a + parameter is invalid (such as NULL dictionary) or the stream state is + inconsistent (for example if deflate has already been called for this stream + or if the compression method is bsort). deflateSetDictionary does not + perform any compression: this will be done by deflate(). +*/ + +ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest, + z_streamp source)); +/* + Sets the destination stream as a complete copy of the source stream. + + This function can be useful when several compression strategies will be + tried, for example when there are several ways of pre-processing the input + data with a filter. The streams that will be discarded should then be freed + by calling deflateEnd. Note that deflateCopy duplicates the internal + compression state which can be quite large, so this strategy is slow and + can consume lots of memory. + + deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not + enough memory, Z_STREAM_ERROR if the source stream state was inconsistent + (such as zalloc being NULL). msg is left unchanged in both source and + destination. +*/ + +ZEXTERN int ZEXPORT deflateReset OF((z_streamp strm)); +/* + This function is equivalent to deflateEnd followed by deflateInit, + but does not free and reallocate all the internal compression state. + The stream will keep the same compression level and any other attributes + that may have been set by deflateInit2. + + deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source + stream state was inconsistent (such as zalloc or state being NULL). +*/ + +ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm, + int level, + int strategy)); +/* + Dynamically update the compression level and compression strategy. The + interpretation of level and strategy is as in deflateInit2. This can be + used to switch between compression and straight copy of the input data, or + to switch to a different kind of input data requiring a different + strategy. If the compression level is changed, the input available so far + is compressed with the old level (and may be flushed); the new level will + take effect only at the next call of deflate(). + + Before the call of deflateParams, the stream state must be set as for + a call of deflate(), since the currently available input may have to + be compressed and flushed. In particular, strm->avail_out must be non-zero. + + deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source + stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR + if strm->avail_out was zero. +*/ + +/* +ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm, + int windowBits)); + + This is another version of inflateInit with an extra parameter. The + fields next_in, avail_in, zalloc, zfree and opaque must be initialized + before by the caller. + + The windowBits parameter is the base two logarithm of the maximum window + size (the size of the history buffer). It should be in the range 8..15 for + this version of the library. The default value is 15 if inflateInit is used + instead. If a compressed stream with a larger window size is given as + input, inflate() will return with the error code Z_DATA_ERROR instead of + trying to allocate a larger window. + + inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough + memory, Z_STREAM_ERROR if a parameter is invalid (such as a negative + memLevel). msg is set to null if there is no error message. inflateInit2 + does not perform any decompression apart from reading the zlib header if + present: this will be done by inflate(). (So next_in and avail_in may be + modified, but next_out and avail_out are unchanged.) +*/ + +ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm, + const Bytef *dictionary, + uInt dictLength)); +/* + Initializes the decompression dictionary from the given uncompressed byte + sequence. This function must be called immediately after a call of inflate + if this call returned Z_NEED_DICT. The dictionary chosen by the compressor + can be determined from the Adler32 value returned by this call of + inflate. The compressor and decompressor must use exactly the same + dictionary (see deflateSetDictionary). + + inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a + parameter is invalid (such as NULL dictionary) or the stream state is + inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the + expected one (incorrect Adler32 value). inflateSetDictionary does not + perform any decompression: this will be done by subsequent calls of + inflate(). +*/ + +ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm)); +/* + Skips invalid compressed data until a full flush point (see above the + description of deflate with Z_FULL_FLUSH) can be found, or until all + available input is skipped. No output is provided. + + inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR + if no more input was provided, Z_DATA_ERROR if no flush point has been found, + or Z_STREAM_ERROR if the stream structure was inconsistent. In the success + case, the application may save the current current value of total_in which + indicates where valid compressed data was found. In the error case, the + application may repeatedly call inflateSync, providing more input each time, + until success or end of the input data. +*/ + +ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm)); +/* + This function is equivalent to inflateEnd followed by inflateInit, + but does not free and reallocate all the internal decompression state. + The stream will keep attributes that may have been set by inflateInit2. + + inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source + stream state was inconsistent (such as zalloc or state being NULL). +*/ + + + /* utility functions */ + +/* + The following utility functions are implemented on top of the + basic stream-oriented functions. To simplify the interface, some + default options are assumed (compression level and memory usage, + standard memory allocation functions). The source code of these + utility functions can easily be modified if you need special options. +*/ + +ZEXTERN int ZEXPORT compress OF((Bytef *dest, uLongf *destLen, + const Bytef *source, uLong sourceLen)); +/* + Compresses the source buffer into the destination buffer. sourceLen is + the byte length of the source buffer. Upon entry, destLen is the total + size of the destination buffer, which must be at least 0.1% larger than + sourceLen plus 12 bytes. Upon exit, destLen is the actual size of the + compressed buffer. + This function can be used to compress a whole file at once if the + input file is mmap'ed. + compress returns Z_OK if success, Z_MEM_ERROR if there was not + enough memory, Z_BUF_ERROR if there was not enough room in the output + buffer. +*/ + +ZEXTERN int ZEXPORT compress2 OF((Bytef *dest, uLongf *destLen, + const Bytef *source, uLong sourceLen, + int level)); +/* + Compresses the source buffer into the destination buffer. The level + parameter has the same meaning as in deflateInit. sourceLen is the byte + length of the source buffer. Upon entry, destLen is the total size of the + destination buffer, which must be at least 0.1% larger than sourceLen plus + 12 bytes. Upon exit, destLen is the actual size of the compressed buffer. + + compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough + memory, Z_BUF_ERROR if there was not enough room in the output buffer, + Z_STREAM_ERROR if the level parameter is invalid. +*/ + +ZEXTERN int ZEXPORT uncompress OF((Bytef *dest, uLongf *destLen, + const Bytef *source, uLong sourceLen)); +/* + Decompresses the source buffer into the destination buffer. sourceLen is + the byte length of the source buffer. Upon entry, destLen is the total + size of the destination buffer, which must be large enough to hold the + entire uncompressed data. (The size of the uncompressed data must have + been saved previously by the compressor and transmitted to the decompressor + by some mechanism outside the scope of this compression library.) + Upon exit, destLen is the actual size of the compressed buffer. + This function can be used to decompress a whole file at once if the + input file is mmap'ed. + + uncompress returns Z_OK if success, Z_MEM_ERROR if there was not + enough memory, Z_BUF_ERROR if there was not enough room in the output + buffer, or Z_DATA_ERROR if the input data was corrupted. +*/ + + +typedef voidp gzFile; + +ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode)); +/* + Opens a gzip (.gz) file for reading or writing. The mode parameter + is as in fopen ("rb" or "wb") but can also include a compression level + ("wb9") or a strategy: 'f' for filtered data as in "wb6f", 'h' for + Huffman only compression as in "wb1h". (See the description + of deflateInit2 for more information about the strategy parameter.) + + gzopen can be used to read a file which is not in gzip format; in this + case gzread will directly read from the file without decompression. + + gzopen returns NULL if the file could not be opened or if there was + insufficient memory to allocate the (de)compression state; errno + can be checked to distinguish the two cases (if errno is zero, the + zlib error is Z_MEM_ERROR). */ + +ZEXTERN gzFile ZEXPORT gzdopen OF((int fd, const char *mode)); +/* + gzdopen() associates a gzFile with the file descriptor fd. File + descriptors are obtained from calls like open, dup, creat, pipe or + fileno (in the file has been previously opened with fopen). + The mode parameter is as in gzopen. + The next call of gzclose on the returned gzFile will also close the + file descriptor fd, just like fclose(fdopen(fd), mode) closes the file + descriptor fd. If you want to keep fd open, use gzdopen(dup(fd), mode). + gzdopen returns NULL if there was insufficient memory to allocate + the (de)compression state. +*/ + +ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy)); +/* + Dynamically update the compression level or strategy. See the description + of deflateInit2 for the meaning of these parameters. + gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not + opened for writing. +*/ + +ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len)); +/* + Reads the given number of uncompressed bytes from the compressed file. + If the input file was not in gzip format, gzread copies the given number + of bytes into the buffer. + gzread returns the number of uncompressed bytes actually read (0 for + end of file, -1 for error). */ + +ZEXTERN int ZEXPORT gzwrite OF((gzFile file, + const voidp buf, unsigned len)); +/* + Writes the given number of uncompressed bytes into the compressed file. + gzwrite returns the number of uncompressed bytes actually written + (0 in case of error). +*/ + +ZEXTERN int ZEXPORTVA gzprintf OF((gzFile file, const char *format, ...)); +/* + Converts, formats, and writes the args to the compressed file under + control of the format string, as in fprintf. gzprintf returns the number of + uncompressed bytes actually written (0 in case of error). +*/ + +ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s)); +/* + Writes the given null-terminated string to the compressed file, excluding + the terminating null character. + gzputs returns the number of characters written, or -1 in case of error. +*/ + +ZEXTERN char * ZEXPORT gzgets OF((gzFile file, char *buf, int len)); +/* + Reads bytes from the compressed file until len-1 characters are read, or + a newline character is read and transferred to buf, or an end-of-file + condition is encountered. The string is then terminated with a null + character. + gzgets returns buf, or Z_NULL in case of error. +*/ + +ZEXTERN int ZEXPORT gzputc OF((gzFile file, int c)); +/* + Writes c, converted to an unsigned char, into the compressed file. + gzputc returns the value that was written, or -1 in case of error. +*/ + +ZEXTERN int ZEXPORT gzgetc OF((gzFile file)); +/* + Reads one byte from the compressed file. gzgetc returns this byte + or -1 in case of end of file or error. +*/ + +ZEXTERN int ZEXPORT gzflush OF((gzFile file, int flush)); +/* + Flushes all pending output into the compressed file. The parameter + flush is as in the deflate() function. The return value is the zlib + error number (see function gzerror below). gzflush returns Z_OK if + the flush parameter is Z_FINISH and all output could be flushed. + gzflush should be called only when strictly necessary because it can + degrade compression. +*/ + +ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile file, + z_off_t offset, int whence)); +/* + Sets the starting position for the next gzread or gzwrite on the + given compressed file. The offset represents a number of bytes in the + uncompressed data stream. The whence parameter is defined as in lseek(2); + the value SEEK_END is not supported. + If the file is opened for reading, this function is emulated but can be + extremely slow. If the file is opened for writing, only forward seeks are + supported; gzseek then compresses a sequence of zeroes up to the new + starting position. + + gzseek returns the resulting offset location as measured in bytes from + the beginning of the uncompressed stream, or -1 in case of error, in + particular if the file is opened for writing and the new starting position + would be before the current position. +*/ + +ZEXTERN int ZEXPORT gzrewind OF((gzFile file)); +/* + Rewinds the given file. This function is supported only for reading. + + gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET) +*/ + +ZEXTERN z_off_t ZEXPORT gztell OF((gzFile file)); +/* + Returns the starting position for the next gzread or gzwrite on the + given compressed file. This position represents a number of bytes in the + uncompressed data stream. + + gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR) +*/ + +ZEXTERN int ZEXPORT gzeof OF((gzFile file)); +/* + Returns 1 when EOF has previously been detected reading the given + input stream, otherwise zero. +*/ + +ZEXTERN int ZEXPORT gzclose OF((gzFile file)); +/* + Flushes all pending output if necessary, closes the compressed file + and deallocates all the (de)compression state. The return value is the zlib + error number (see function gzerror below). +*/ + +ZEXTERN const char * ZEXPORT gzerror OF((gzFile file, int *errnum)); +/* + Returns the error message for the last error which occurred on the + given compressed file. errnum is set to zlib error number. If an + error occurred in the file system and not in the compression library, + errnum is set to Z_ERRNO and the application may consult errno + to get the exact error code. +*/ + + /* checksum functions */ + +/* + These functions are not related to compression but are exported + anyway because they might be useful in applications using the + compression library. +*/ + +ZEXTERN uLong ZEXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len)); + +/* + Update a running Adler-32 checksum with the bytes buf[0..len-1] and + return the updated checksum. If buf is NULL, this function returns + the required initial value for the checksum. + An Adler-32 checksum is almost as reliable as a CRC32 but can be computed + much faster. Usage example: + + uLong adler = adler32(0L, Z_NULL, 0); + + while (read_buffer(buffer, length) != EOF) { + adler = adler32(adler, buffer, length); + } + if (adler != original_adler) error(); +*/ + +ZEXTERN uLong ZEXPORT crc32 OF((uLong crc, const Bytef *buf, uInt len)); +/* + Update a running crc with the bytes buf[0..len-1] and return the updated + crc. If buf is NULL, this function returns the required initial value + for the crc. Pre- and post-conditioning (one's complement) is performed + within this function so it shouldn't be done by the application. + Usage example: + + uLong crc = crc32(0L, Z_NULL, 0); + + while (read_buffer(buffer, length) != EOF) { + crc = crc32(crc, buffer, length); + } + if (crc != original_crc) error(); +*/ + + + /* various hacks, don't look :) */ + +/* deflateInit and inflateInit are macros to allow checking the zlib version + * and the compiler's view of z_stream: + */ +ZEXTERN int ZEXPORT deflateInit_ OF((z_streamp strm, int level, + const char *version, int stream_size)); +ZEXTERN int ZEXPORT inflateInit_ OF((z_streamp strm, + const char *version, int stream_size)); +ZEXTERN int ZEXPORT deflateInit2_ OF((z_streamp strm, int level, int method, + int windowBits, int memLevel, + int strategy, const char *version, + int stream_size)); +ZEXTERN int ZEXPORT inflateInit2_ OF((z_streamp strm, int windowBits, + const char *version, int stream_size)); +#define deflateInit(strm, level) \ + deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream)) +#define inflateInit(strm) \ + inflateInit_((strm), ZLIB_VERSION, sizeof(z_stream)) +#define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \ + deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\ + (strategy), ZLIB_VERSION, sizeof(z_stream)) +#define inflateInit2(strm, windowBits) \ + inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream)) + + +#if !defined(_Z_UTIL_H) && !defined(NO_DUMMY_DECL) + struct internal_state {int dummy;}; /* hack for buggy compilers */ +#endif + +ZEXTERN const char * ZEXPORT zError OF((int err)); +ZEXTERN int ZEXPORT inflateSyncPoint OF((z_streamp z)); +ZEXTERN const uLongf * ZEXPORT get_crc_table OF((void)); + +#ifdef __cplusplus +} +#endif + +#endif /* _ZLIB_H */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/include/zlib/zutil.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,225 @@ +/* zutil.h -- internal interface and configuration of the compression library + * Copyright (C) 1995-2002 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +/* @(#) $Id: zutil.h,v 1.4 2002/04/24 07:36:48 mcr Exp $ */ + +#ifndef _Z_UTIL_H +#define _Z_UTIL_H + +#include "zlib.h" + +#include +#define HAVE_MEMCPY + +#if 0 // #ifdef STDC +# include +# include +# include +#endif +#ifndef __KERNEL__ +#ifdef NO_ERRNO_H + extern int errno; +#else +# include +#endif +#endif + +#ifndef local +# define local static +#endif +/* compile with -Dlocal if your debugger can't find static symbols */ + +typedef unsigned char uch; +typedef uch FAR uchf; +typedef unsigned short ush; +typedef ush FAR ushf; +typedef unsigned long ulg; + +extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */ +/* (size given to avoid silly warnings with Visual C++) */ + +#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] + +#define ERR_RETURN(strm,err) \ + return (strm->msg = ERR_MSG(err), (err)) +/* To be used only when the state is known to be valid */ + + /* common constants */ + +#ifndef DEF_WBITS +# define DEF_WBITS MAX_WBITS +#endif +/* default windowBits for decompression. MAX_WBITS is for compression only */ + +#if MAX_MEM_LEVEL >= 8 +# define DEF_MEM_LEVEL 8 +#else +# define DEF_MEM_LEVEL MAX_MEM_LEVEL +#endif +/* default memLevel */ + +#define STORED_BLOCK 0 +#define STATIC_TREES 1 +#define DYN_TREES 2 +/* The three kinds of block type */ + +#define MIN_MATCH 3 +#define MAX_MATCH 258 +/* The minimum and maximum match lengths */ + +#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ + + /* target dependencies */ + +#ifdef MSDOS +# define OS_CODE 0x00 +# if defined(__TURBOC__) || defined(__BORLANDC__) +# if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) + /* Allow compilation with ANSI keywords only enabled */ + void _Cdecl farfree( void *block ); + void *_Cdecl farmalloc( unsigned long nbytes ); +# else +# include +# endif +# else /* MSC or DJGPP */ +# include +# endif +#endif + +#ifdef OS2 +# define OS_CODE 0x06 +#endif + +#ifdef WIN32 /* Window 95 & Windows NT */ +# define OS_CODE 0x0b +#endif + +#if defined(VAXC) || defined(VMS) +# define OS_CODE 0x02 +# define F_OPEN(name, mode) \ + fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") +#endif + +#ifdef AMIGA +# define OS_CODE 0x01 +#endif + +#if defined(ATARI) || defined(atarist) +# define OS_CODE 0x05 +#endif + +#if defined(MACOS) || defined(TARGET_OS_MAC) +# define OS_CODE 0x07 +# if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os +# include /* for fdopen */ +# else +# ifndef fdopen +# define fdopen(fd,mode) NULL /* No fdopen() */ +# endif +# endif +#endif + +#ifdef __50SERIES /* Prime/PRIMOS */ +# define OS_CODE 0x0F +#endif + +#ifdef TOPS20 +# define OS_CODE 0x0a +#endif + +#if defined(_BEOS_) || defined(RISCOS) +# define fdopen(fd,mode) NULL /* No fdopen() */ +#endif + +#if (defined(_MSC_VER) && (_MSC_VER > 600)) +# define fdopen(fd,type) _fdopen(fd,type) +#endif + + + /* Common defaults */ + +#ifndef OS_CODE +# define OS_CODE 0x03 /* assume Unix */ +#endif + +#ifndef F_OPEN +# define F_OPEN(name, mode) fopen((name), (mode)) +#endif + + /* functions */ + +#ifdef HAVE_STRERROR + extern char *strerror OF((int)); +# define zstrerror(errnum) strerror(errnum) +#else +# define zstrerror(errnum) "" +#endif + +#if defined(pyr) +# define NO_MEMCPY +#endif +#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__) + /* Use our own functions for small and medium model with MSC <= 5.0. + * You may have to use the same strategy for Borland C (untested). + * The __SC__ check is for Symantec. + */ +# define NO_MEMCPY +#endif +#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY) +# define HAVE_MEMCPY +#endif +#ifdef HAVE_MEMCPY +# ifdef SMALL_MEDIUM /* MSDOS small or medium model */ +# define zmemcpy _fmemcpy +# define zmemcmp _fmemcmp +# define zmemzero(dest, len) _fmemset(dest, 0, len) +# else +# define zmemcpy memcpy +# define zmemcmp memcmp +# define zmemzero(dest, len) memset(dest, 0, len) +# endif +#else + extern void zmemcpy OF((Bytef* dest, const Bytef* source, uInt len)); + extern int zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len)); + extern void zmemzero OF((Bytef* dest, uInt len)); +#endif + +/* Diagnostic functions */ +#ifdef DEBUG +# include + extern int z_verbose; + extern void z_error OF((char *m)); +# define Assert(cond,msg) {if(!(cond)) z_error(msg);} +# define Trace(x) {if (z_verbose>=0) fprintf x ;} +# define Tracev(x) {if (z_verbose>0) fprintf x ;} +# define Tracevv(x) {if (z_verbose>1) fprintf x ;} +# define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;} +# define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;} +#else +# define Assert(cond,msg) +# define Trace(x) +# define Tracev(x) +# define Tracevv(x) +# define Tracec(c,x) +# define Tracecv(c,x) +#endif + + +typedef uLong (ZEXPORT *check_func) OF((uLong check, const Bytef *buf, + uInt len)); +voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size)); +void zcfree OF((voidpf opaque, voidpf ptr)); + +#define ZALLOC(strm, items, size) \ + (*((strm)->zalloc))((strm)->opaque, (items), (size)) +#define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) +#define TRY_FREE(s, p) {if (p) ZFREE(s, p);} + +#endif /* _Z_UTIL_H */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/lib/libfreeswan/Makefile.objs Mon Feb 9 13:51:03 2004 @@ -0,0 +1,21 @@ +obj-y += satot.o +obj-y += addrtot.o +obj-y += ultot.o +obj-y += addrtypeof.o +obj-y += anyaddr.o +obj-y += initaddr.o +obj-y += ultoa.o +obj-y += addrtoa.o +obj-y += subnettoa.o +obj-y += subnetof.o +obj-y += goodmask.o +obj-y += datatot.o +obj-y += rangetoa.o +obj-y += prng.o +obj-y += pfkey_v2_parse.o +obj-y += pfkey_v2_build.o +obj-y += pfkey_v2_debug.o +obj-y += pfkey_v2_ext_bits.o + +#version.c: ${LIBFREESWANDIR}/version.in.c ${OPENSWANSRCDIR}/Makefile.ver +# sed '/"/s/xxx/$(IPSECVERSION)/' ${LIBFREESWANDIR}/version.in.c >$@ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/lib/zlib/Makefile Mon Feb 9 13:51:03 2004 @@ -0,0 +1,118 @@ +# (kernel) Makefile for IPCOMP zlib deflate code +# Copyright (C) 1998, 1999, 2000, 2001 Richard Guy Briggs. +# Copyright (C) 2000 Svenning Soerensen +# +# This program is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by the +# Free Software Foundation; either version 2 of the License, or (at your +# option) any later version. See . +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +# for more details. +# +# RCSID $Id: Makefile,v 1.9 2002/04/24 07:55:32 mcr Exp $ +# + + + +include ../Makefile.inc + + + +ifndef TOPDIR +TOPDIR := /usr/src/linux +endif + + +L_TARGET := zlib.a + +obj-y := + +include Makefile.objs + +EXTRA_CFLAGS += $(KLIPSCOMPILE) + +EXTRA_CFLAGS += -Wall +#EXTRA_CFLAGS += -Wconversion +#EXTRA_CFLAGS += -Wmissing-prototypes +EXTRA_CFLAGS += -Wpointer-arith +#EXTRA_CFLAGS += -Wcast-qual +#EXTRA_CFLAGS += -Wmissing-declarations +EXTRA_CFLAGS += -Wstrict-prototypes +#EXTRA_CFLAGS += -pedantic +#EXTRA_CFLAGS += -W +#EXTRA_CFLAGS += -Wwrite-strings +EXTRA_CFLAGS += -Wbad-function-cast +EXTRA_CFLAGS += -DIPCOMP_PREFIX + +.S.o: + $(CC) -D__ASSEMBLY__ -DNO_UNDERLINE -traditional -c $< -o $*.o + +asm-obj-$(CONFIG_M586) += match586.o +asm-obj-$(CONFIG_M586TSC) += match586.o +asm-obj-$(CONFIG_M586MMX) += match586.o +asm-obj-$(CONFIG_M686) += match686.o +asm-obj-$(CONFIG_MPENTIUMIII) += match686.o +asm-obj-$(CONFIG_MPENTIUM4) += match686.o +asm-obj-$(CONFIG_MK6) += match586.o +asm-obj-$(CONFIG_MK7) += match686.o +asm-obj-$(CONFIG_MCRUSOE) += match586.o +asm-obj-$(CONFIG_MWINCHIPC6) += match586.o +asm-obj-$(CONFIG_MWINCHIP2) += match686.o +asm-obj-$(CONFIG_MWINCHIP3D) += match686.o + +obj-y += $(asm-obj-y) +ifneq ($(strip $(asm-obj-y)),) + EXTRA_CFLAGS += -DASMV +endif + +active-objs := $(sort $(obj-y) $(obj-m)) +L_OBJS := $(obj-y) +M_OBJS := $(obj-m) +MIX_OBJS := $(filter $(export-objs), $(active-objs)) + +include $(TOPDIR)/Rules.make + +$(obj-y) : $(TOPDIR)/include/linux/config.h $(TOPDIR)/include/linux/autoconf.h + + +clean: + -rm -f *.o *.a + +checkprograms: +programs: $(L_TARGET) + +# +# $Log: Makefile,v $ +# Revision 1.9 2002/04/24 07:55:32 mcr +# #include patches and Makefiles for post-reorg compilation. +# +# Revision 1.8 2002/04/24 07:36:44 mcr +# Moved from ./zlib/Makefile,v +# +# Revision 1.7 2002/03/27 23:34:35 mcr +# added programs: target +# +# Revision 1.6 2001/12/05 20:19:08 henry +# use new compile-control variable +# +# Revision 1.5 2001/11/27 16:38:08 mcr +# added new "checkprograms" target to deal with programs that +# are required for "make check", but that may not be ready to +# build for every user due to external dependancies. +# +# Revision 1.4 2001/10/24 14:46:24 henry +# Makefile.inc +# +# Revision 1.3 2001/04/21 23:05:24 rgb +# Update asm directives for 2.4 style makefiles. +# +# Revision 1.2 2001/01/29 22:22:00 rgb +# Convert to 2.4 new style with back compat. +# +# Revision 1.1.1.1 2000/09/29 18:51:33 rgb +# zlib_beginnings +# +# --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/lib/zlib/Makefile.objs Mon Feb 9 13:51:03 2004 @@ -0,0 +1,27 @@ +obj-$(CONFIG_IPSEC_IPCOMP) += adler32.o +obj-$(CONFIG_IPSEC_IPCOMP) += deflate.o +obj-$(CONFIG_IPSEC_IPCOMP) += infblock.o +obj-$(CONFIG_IPSEC_IPCOMP) += infcodes.o +obj-$(CONFIG_IPSEC_IPCOMP) += inffast.o +obj-$(CONFIG_IPSEC_IPCOMP) += inflate.o +obj-$(CONFIG_IPSEC_IPCOMP) += inftrees.o +obj-$(CONFIG_IPSEC_IPCOMP) += infutil.o +obj-$(CONFIG_IPSEC_IPCOMP) += trees.o +obj-$(CONFIG_IPSEC_IPCOMP) += zutil.o + +asm-obj-$(CONFIG_M586) += ${LIBZLIBSRCDIR}/match586.o +asm-obj-$(CONFIG_M586TSC) += ${LIBZLIBSRCDIR}/match586.o +asm-obj-$(CONFIG_M586MMX) += ${LIBZLIBSRCDIR}/match586.o +asm-obj-$(CONFIG_M686) += ${LIBZLIBSRCDIR}/match686.o +asm-obj-$(CONFIG_MPENTIUMIII) += ${LIBZLIBSRCDIR}/match686.o +asm-obj-$(CONFIG_MPENTIUM4) += ${LIBZLIBSRCDIR}/match686.o +asm-obj-$(CONFIG_MK6) += ${LIBZLIBSRCDIR}/match586.o +asm-obj-$(CONFIG_MK7) += ${LIBZLIBSRCDIR}/match686.o +asm-obj-$(CONFIG_MCRUSOE) += ${LIBZLIBSRCDIR}/match586.o +asm-obj-$(CONFIG_MWINCHIPC6) += ${LIBZLIBSRCDIR}/match586.o +asm-obj-$(CONFIG_MWINCHIP2) += ${LIBZLIBSRCDIR}/match686.o +asm-obj-$(CONFIG_MWINCHIP3D) += ${LIBZLIBSRCDIR}/match686.o + +EXTRA_CFLAGS += -DIPCOMP_PREFIX + + --- swan26/net/Kconfig.preipsec 2005-09-01 18:15:19.000000000 -0400 +++ swan26/net/Kconfig 2005-09-03 16:51:17.000000000 -0400 @@ -215,2 +215,6 @@ +if INET +source "net/ipsec/Kconfig" +endif # if INET + endif # if NET --- /distros/kernel/linux-2.6.3-rc4/net/Makefile Mon Feb 16 21:22:12 2004 +++ ref26/net/Makefile Thu Feb 19 21:02:25 2004 @@ -42,3 +42,6 @@ ifeq ($(CONFIG_NET),y) obj-$(CONFIG_SYSCTL) += sysctl_net.o endif + +obj-$(CONFIG_KLIPS) += ipsec/ + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/Kconfig Mon Feb 9 13:51:03 2004 @@ -0,0 +1,161 @@ +# +# IPSEC configuration +# Copyright (C) 2004 Michael Richardson +# +# This program is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by the +# Free Software Foundation; either version 2 of the License, or (at your +# option) any later version. See . +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +# for more details. +# +# RCSID $Id: Kconfig,v 1.6.2.2 2006/10/11 18:14:33 paul Exp $ + +config KLIPS + tristate "Openswan IPsec (KLIPS26)" + default n + help + KLIPS is the Openswan (www.openswan.org) Kernel Level IP Security + system. It is extensively tested, and has interoperated with + many other systems. + It provides "ipsecX" devices on which one can do firewalling. + The userland, is compatible with both KLIPS and 26sec. + +menu "KLIPS options" + depends on KLIPS + +config KLIPS_ESP + bool 'Encapsulating Security Payload - ESP ("VPN")' + default y + help + This option provides support for the IPSEC Encapsulation Security + Payload (IP protocol 50) which provides packet layer content + hiding, and content authentication. + It is recommended to enable this. RFC2406 + +config KLIPS_AH + bool 'Authentication Header - AH' + default n + help + This option provides support for the IPSEC Authentication Header + (IP protocol 51) which provides packet layer sender and content + authentication. It does not provide for confidentiality. + It is not recommended to enable this. RFC2402 + +config KLIPS_AUTH_HMAC_MD5 + bool 'HMAC-MD5 authentication algorithm' + default y + help + The HMAC-MD5 algorithm is used by ESP (and AH) to guarantee packet + integrity. There is little reason not to include it. + +config KLIPS_AUTH_HMAC_SHA1 + bool 'HMAC-SHA1 authentication algorithm' + default y + help + The HMAC-SHA1 algorithm is used by ESP (and AH) to guarantee packet + integrity. SHA1 is a little slower than MD5, but is said to be + a bit more secure. There is little reason not to include it. + +config KLIPS_ENC_CRYPTOAPI + bool 'CryptoAPI algorithm interface' + default n + help + Enable the algorithm interface to make all CryptoAPI 1.0 algorithms + available to KLIPS. + +config KLIPS_ENC_1DES + bool 'Include 1DES with CryptoAPI' + default n + depends on KLIPS_ENC_CRYPTOAPI + help + The CryptoAPI interface does not include support for every algorithm + yet, and one that it doesn't support by default is the VERY WEAK + 1DES. Select this if you are terminally stupid. + +config KLIPS_ENC_3DES + bool '3DES encryption algorithm' + default y + help + The 3DES algorithm is used by ESP to provide for packet privacy. + 3DES is 3-repeats of the DES algorithm. 3DES is widely supported, + and analyzed and is considered very secure. 1DES is not supported. + +config KLIPS_ENC_AES + bool 'AES encryption algorithm' + default y + help + The AES algorithm is used by ESP to provide for packet privacy. + AES the NIST replacement for DES. AES is being widely analyzed, + and is very fast. + +config KLIPS_ENC_NULL + bool 'NULL NON-encryption algorithm' + default n + help + NON encryption algo , maybe useful for ESP auth only scenarios + (eg: with NAT-T), see RFC 2410. + +config KLIPS_IPCOMP + bool 'IP compression' + default y + help + The IPcomp protocol is used prior to ESP to make the packet + smaller. Once encrypted, compression will fail, so any link + layer efforts (e.g. PPP) will not work. + +config KLIPS_DEBUG + bool 'IPsec debugging' + default y + help + KLIPS includes a lot of debugging code. Unless there is a real + tangible benefit to removing this code, it should be left in place. + Debugging connections without access to kernel level debugging is + essentially impossible. Leave this on. + +endmenu + +# +# +# $Log: Kconfig,v $ +# Revision 1.6.2.2 2006/10/11 18:14:33 paul +# Add JuanJo Ciarlante's ESP_NULL patches for KLIPS, but leave it disabled +# per default. +# +# Revision 1.6.2.1 2006/04/20 16:33:06 mcr +# remove all of CONFIG_KLIPS_ALG --- one can no longer build without it. +# Fix in-kernel module compilation. Sub-makefiles do not work. +# +# Revision 1.6 2005/05/18 20:55:27 mcr +# default cryptoapi to n. +# +# Revision 1.5 2005/05/11 01:23:25 mcr +# added 1DES option to cryptoapi. +# +# Revision 1.4 2005/04/29 05:29:54 mcr +# add option to include cryptoapi algorithms. +# +# Revision 1.3 2004/08/17 03:27:23 mcr +# klips 2.6 edits. +# +# Revision 1.2 2004/08/14 03:27:39 mcr +# 2.6 kernel build/configuration files. +# +# Revision 1.1 2004/08/14 02:47:55 mcr +# kernel build/config patches +# +# Revision 1.3 2004/02/24 17:17:04 mcr +# s/CONFIG_IPSEC/CONFIG_KLIPS/ as 26sec uses "CONFIG_IPSEC" to +# turn it on/off as well. +# +# Revision 1.2 2004/02/22 06:50:42 mcr +# kernel 2.6 port - merged with 2.4 code. +# +# Revision 1.1.2.1 2004/02/20 02:07:53 mcr +# module configuration for KLIPS 2.6 +# +# + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/Makefile Mon Feb 9 13:51:03 2004 @@ -0,0 +1,195 @@ +# Makefile for KLIPS kernel code as a module for 2.6 kernels +# +# Makefile for KLIPS kernel code as a module +# Copyright (C) 1998, 1999, 2000,2001 Richard Guy Briggs. +# Copyright (C) 2002-2004 Michael Richardson +# +# This program is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by the +# Free Software Foundation; either version 2 of the License, or (at your +# option) any later version. See . +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +# for more details. +# +# RCSID $Id: Makefile.fs2_6,v 1.8.2.2 2006/10/11 18:14:33 paul Exp $ +# +# Note! Dependencies are done automagically by 'make dep', which also +# removes any old dependencies. DON'T put your own dependencies here +# unless it's something special (ie not a .c file). +# + +OPENSWANSRCDIR?=. +KLIPS_TOP?=. + +-include ${OPENSWANSRCDIR}/Makefile.ver + +base-klips-objs := + +base-klips-objs+= ipsec_init.o ipsec_sa.o ipsec_radij.o radij.o +base-klips-objs+= ipsec_life.o ipsec_proc.o +base-klips-objs+= ipsec_tunnel.o ipsec_xmit.o ipsec_rcv.o ipsec_ipip.o +base-klips-objs+= ipsec_snprintf.o +base-klips-objs+= sysctl_net_ipsec.o +base-klips-objs+= pfkey_v2.o pfkey_v2_parser.o pfkey_v2_ext_process.o +base-klips-objs+= version.o + +base-klips-objs+= satot.o +base-klips-objs+= addrtot.o +base-klips-objs+= ultot.o +base-klips-objs+= addrtypeof.o +base-klips-objs+= anyaddr.o +base-klips-objs+= initaddr.o +base-klips-objs+= ultoa.o +base-klips-objs+= addrtoa.o +base-klips-objs+= subnettoa.o +base-klips-objs+= subnetof.o +base-klips-objs+= goodmask.o +base-klips-objs+= datatot.o +base-klips-objs+= rangetoa.o +base-klips-objs+= prng.o +base-klips-objs+= pfkey_v2_parse.o +base-klips-objs+= pfkey_v2_build.o +base-klips-objs+= pfkey_v2_debug.o +base-klips-objs+= pfkey_v2_ext_bits.o +base-klips-objs+= version.o + +obj-${CONFIG_KLIPS} += ipsec.o + +ipsec-objs += ${base-klips-objs} + +ipsec-$(CONFIG_KLIPS_ESP) += ipsec_esp.o +ipsec-$(CONFIG_KLIPS_IPCOMP) += ipsec_ipcomp.o +ipsec-$(CONFIG_KLIPS_AUTH_HMAC_MD5) += ipsec_md5c.o +ipsec-$(CONFIG_KLIPS_AUTH_HMAC_SHA1) += ipsec_sha1.o + +# AH, if you really think you need it. +ipsec-$(CONFIG_KLIPS_AH) += ipsec_ah.o + +ipsec-y += ipsec_alg.o + +# include code from DES subdir +crypto-$(CONFIG_KLIPS_ENC_3DES) += des/ipsec_alg_3des.o +crypto-$(CONFIG_KLIPS_ENC_3DES) += des/cbc_enc.o +crypto-$(CONFIG_KLIPS_ENC_3DES) += des/ecb_enc.o +crypto-$(CONFIG_KLIPS_ENC_3DES) += des/set_key.o + +ifeq ($(strip ${SUBARCH}),) +SUBARCH:=${ARCH} +endif + +# the assembly version expects frame pointers, which are +# optional in many kernel builds. If you want speed, you should +# probably use cryptoapi code instead. +USEASSEMBLY=${SUBARCH}${CONFIG_FRAME_POINTER} +ifeq (${USEASSEMBLY},i386y) +crypto-$(CONFIG_KLIPS_ENC_3DES) += des/dx86unix.o +else +crypto-$(CONFIG_KLIPS_ENC_3DES) += des/des_enc.o +endif + +# include code from AES subdir +crypto-$(CONFIG_KLIPS_ENC_AES) += aes/ipsec_alg_aes.o +crypto-$(CONFIG_KLIPS_ENC_AES) += aes/aes_xcbc_mac.o +crypto-$(CONFIG_KLIPS_ENC_AES) += aes/aes_cbc.o + +ifeq ($(strip ${SUBARCH}),) +SUBARCH:=${ARCH} +endif + +USEASSEMBLY=${SUBARCH}${CONFIG_FRAME_POINTER} +ifeq (${USEASSEMBLY},i386y) +crypto-$(CONFIG_KLIPS_ENC_AES) += aes/aes-i586.o +else +crypto-$(CONFIG_KLIPS_ENC_AES) += aes/aes.o +endif + +crypto-$(CONFIG_KLIPS_ENC_NULL) += null/ipsec_alg_null.o + +ipsec-y += ${crypto-y} + +ipsec-$(CONFIG_KLIPS_ENC_CRYPTOAPI) += ipsec_alg_cryptoapi.o + +# IPcomp stuff +base-ipcomp-objs := ipcomp.o +base-ipcomp-objs += adler32.o +base-ipcomp-objs += deflate.o +base-ipcomp-objs += infblock.o +base-ipcomp-objs += infcodes.o +base-ipcomp-objs += inffast.o +base-ipcomp-objs += inflate.o +base-ipcomp-objs += inftrees.o +base-ipcomp-objs += infutil.o +base-ipcomp-objs += trees.o +base-ipcomp-objs += zutil.o +asm-ipcomp-obj-$(CONFIG_M586) += match586.o +asm-ipcomp-obj-$(CONFIG_M586TSC) += match586.o +asm-ipcomp-obj-$(CONFIG_M586MMX) += match586.o +asm-ipcomp-obj-$(CONFIG_M686) += match686.o +asm-ipcomp-obj-$(CONFIG_MPENTIUMIII) += match686.o +asm-ipcomp-obj-$(CONFIG_MPENTIUM4) += match686.o +asm-ipcomp-obj-$(CONFIG_MK6) += match586.o +asm-ipcomp-obj-$(CONFIG_MK7) += match686.o +asm-ipcomp-obj-$(CONFIG_MCRUSOE) += match586.o +asm-ipcomp-obj-$(CONFIG_MWINCHIPC6) += match586.o +asm-ipcomp-obj-$(CONFIG_MWINCHIP2) += match686.o +asm-ipcomp-obj-$(CONFIG_MWINCHIP3D) += match686.o +base-ipcomp-objs += ${asm-ipcomp-obj-y} + +ipsec-$(CONFIG_KLIPS_IPCOMP) += ${base-ipcomp-objs} + +EXTRA_CFLAGS += -DIPCOMP_PREFIX + +# +# $Log: Makefile.fs2_6,v $ +# Revision 1.8.2.2 2006/10/11 18:14:33 paul +# Add JuanJo Ciarlante's ESP_NULL patches for KLIPS, but leave it disabled +# per default. +# +# Revision 1.8.2.1 2006/04/20 16:33:06 mcr +# remove all of CONFIG_KLIPS_ALG --- one can no longer build without it. +# Fix in-kernel module compilation. Sub-makefiles do not work. +# +# Revision 1.8 2005/05/11 03:15:42 mcr +# adjusted makefiles to sanely build modules properly. +# +# Revision 1.7 2005/04/13 22:52:12 mcr +# moved KLIPS specific snprintf() wrapper to seperate file. +# +# Revision 1.6 2004/08/22 05:02:03 mcr +# organized symbols such that it is easier to build modules. +# +# Revision 1.5 2004/08/18 01:43:56 mcr +# adjusted makefile enumation so that it can be used by module +# wrapper. +# +# Revision 1.4 2004/08/17 03:27:23 mcr +# klips 2.6 edits. +# +# Revision 1.3 2004/08/04 16:50:13 mcr +# removed duplicate definition of dx86unix.o +# +# Revision 1.2 2004/08/03 18:21:09 mcr +# only set KLIPS_TOP and OPENSWANSRCDIR if not already set. +# +# Revision 1.1 2004/07/26 15:02:22 mcr +# makefile for KLIPS module for 2.6. +# +# Revision 1.3 2004/02/24 17:17:04 mcr +# s/CONFIG_IPSEC/CONFIG_KLIPS/ as 26sec uses "CONFIG_IPSEC" to +# turn it on/off as well. +# +# Revision 1.2 2004/02/22 06:50:42 mcr +# kernel 2.6 port - merged with 2.4 code. +# +# Revision 1.1.2.1 2004/02/20 02:07:53 mcr +# module configuration for KLIPS 2.6 +# +# +# Local Variables: +# compile-command: "(cd ../../.. && source umlsetup.sh && make -C ${POOLSPACE} module/ipsec.o)" +# End Variables: +# + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/README-zlib Mon Feb 9 13:51:03 2004 @@ -0,0 +1,147 @@ +zlib 1.1.4 is a general purpose data compression library. All the code +is thread safe. The data format used by the zlib library +is described by RFCs (Request for Comments) 1950 to 1952 in the files +http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate +format) and rfc1952.txt (gzip format). These documents are also available in +other formats from ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html + +All functions of the compression library are documented in the file zlib.h +(volunteer to write man pages welcome, contact jloup@gzip.org). A usage +example of the library is given in the file example.c which also tests that +the library is working correctly. Another example is given in the file +minigzip.c. The compression library itself is composed of all source files +except example.c and minigzip.c. + +To compile all files and run the test program, follow the instructions +given at the top of Makefile. In short "make test; make install" +should work for most machines. For Unix: "./configure; make test; make install" +For MSDOS, use one of the special makefiles such as Makefile.msc. +For VMS, use Make_vms.com or descrip.mms. + +Questions about zlib should be sent to , or to +Gilles Vollant for the Windows DLL version. +The zlib home page is http://www.zlib.org or http://www.gzip.org/zlib/ +Before reporting a problem, please check this site to verify that +you have the latest version of zlib; otherwise get the latest version and +check whether the problem still exists or not. + +PLEASE read the zlib FAQ http://www.gzip.org/zlib/zlib_faq.html +before asking for help. + +Mark Nelson wrote an article about zlib for the Jan. 1997 +issue of Dr. Dobb's Journal; a copy of the article is available in +http://dogma.net/markn/articles/zlibtool/zlibtool.htm + +The changes made in version 1.1.4 are documented in the file ChangeLog. +The only changes made since 1.1.3 are bug corrections: + +- ZFREE was repeated on same allocation on some error conditions. + This creates a security problem described in + http://www.zlib.org/advisory-2002-03-11.txt +- Returned incorrect error (Z_MEM_ERROR) on some invalid data +- Avoid accesses before window for invalid distances with inflate window + less than 32K. +- force windowBits > 8 to avoid a bug in the encoder for a window size + of 256 bytes. (A complete fix will be available in 1.1.5). + +The beta version 1.1.5beta includes many more changes. A new official +version 1.1.5 will be released as soon as extensive testing has been +completed on it. + + +Unsupported third party contributions are provided in directory "contrib". + +A Java implementation of zlib is available in the Java Development Kit +http://www.javasoft.com/products/JDK/1.1/docs/api/Package-java.util.zip.html +See the zlib home page http://www.zlib.org for details. + +A Perl interface to zlib written by Paul Marquess +is in the CPAN (Comprehensive Perl Archive Network) sites +http://www.cpan.org/modules/by-module/Compress/ + +A Python interface to zlib written by A.M. Kuchling +is available in Python 1.5 and later versions, see +http://www.python.org/doc/lib/module-zlib.html + +A zlib binding for TCL written by Andreas Kupries +is availlable at http://www.westend.com/~kupries/doc/trf/man/man.html + +An experimental package to read and write files in .zip format, +written on top of zlib by Gilles Vollant , is +available at http://www.winimage.com/zLibDll/unzip.html +and also in the contrib/minizip directory of zlib. + + +Notes for some targets: + +- To build a Windows DLL version, include in a DLL project zlib.def, zlib.rc + and all .c files except example.c and minigzip.c; compile with -DZLIB_DLL + The zlib DLL support was initially done by Alessandro Iacopetti and is + now maintained by Gilles Vollant . Check the zlib DLL + home page at http://www.winimage.com/zLibDll + + From Visual Basic, you can call the DLL functions which do not take + a structure as argument: compress, uncompress and all gz* functions. + See contrib/visual-basic.txt for more information, or get + http://www.tcfb.com/dowseware/cmp-z-it.zip + +- For 64-bit Irix, deflate.c must be compiled without any optimization. + With -O, one libpng test fails. The test works in 32 bit mode (with + the -n32 compiler flag). The compiler bug has been reported to SGI. + +- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 + it works when compiled with cc. + +- on Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1 + is necessary to get gzprintf working correctly. This is done by configure. + +- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works + with other compilers. Use "make test" to check your compiler. + +- gzdopen is not supported on RISCOS, BEOS and by some Mac compilers. + +- For Turbo C the small model is supported only with reduced performance to + avoid any far allocation; it was tested with -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3 + +- For PalmOs, see http://www.cs.uit.no/~perm/PASTA/pilot/software.html + Per Harald Myrvang + + +Acknowledgments: + + The deflate format used by zlib was defined by Phil Katz. The deflate + and zlib specifications were written by L. Peter Deutsch. Thanks to all the + people who reported problems and suggested various improvements in zlib; + they are too numerous to cite here. + +Copyright notice: + + (C) 1995-2002 Jean-loup Gailly and Mark Adler + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + + Jean-loup Gailly Mark Adler + jloup@gzip.org madler@alumni.caltech.edu + +If you use the zlib library in a product, we would appreciate *not* +receiving lengthy legal documents to sign. The sources are provided +for free but without warranty of any kind. The library has been +entirely written by Jean-loup Gailly and Mark Adler; it does not +include third-party code. + +If you redistribute modified sources, we would appreciate that you include +in the file ChangeLog history information documenting your changes. --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/README-zlib.freeswan Mon Feb 9 13:51:03 2004 @@ -0,0 +1,13 @@ +The only changes made to these files for use in FreeS/WAN are: + + - In zconf.h, macros are defined to prefix global symbols with "ipcomp_" + (or "_ipcomp"), when compiled with -DIPCOMP_PREFIX. + - The copyright strings are defined local (static) + + The above changes are made to avoid name collisions with ppp_deflate + and ext2compr. + + - Files not needed for FreeS/WAN have been removed + + See the "README" file for information about where to obtain the complete + zlib package. --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/addrtoa.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,67 @@ +/* + * addresses to ASCII + * Copyright (C) 1998, 1999 Henry Spencer. + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + * License for more details. + * + * RCSID $Id: addrtoa.c,v 1.10 2004/07/10 07:43:47 mcr Exp $ + */ +#include "openswan.h" + +#define NBYTES 4 /* bytes in an address */ +#define PERBYTE 4 /* three digits plus a dot or NUL */ +#define BUFLEN (NBYTES*PERBYTE) + +#if BUFLEN != ADDRTOA_BUF +#error "ADDRTOA_BUF in openswan.h inconsistent with addrtoa() code" +#endif + +/* + - addrtoa - convert binary address to ASCII dotted decimal + */ +size_t /* space needed for full conversion */ +addrtoa(addr, format, dst, dstlen) +struct in_addr addr; +int format; /* character */ +char *dst; /* need not be valid if dstlen is 0 */ +size_t dstlen; +{ + unsigned long a = ntohl(addr.s_addr); + int i; + size_t n; + unsigned long byte; + char buf[BUFLEN]; + char *p; + + switch (format) { + case 0: + break; + default: + return 0; + break; + } + + p = buf; + for (i = NBYTES-1; i >= 0; i--) { + byte = (a >> (i*8)) & 0xff; + p += ultoa(byte, 10, p, PERBYTE); + if (i != 0) + *(p-1) = '.'; + } + n = p - buf; + + if (dstlen > 0) { + if (n > dstlen) + buf[dstlen - 1] = '\0'; + strcpy(dst, buf); + } + return n; +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/addrtot.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,423 @@ +/* + * addresses to text + * Copyright (C) 2000 Henry Spencer. + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + * License for more details. + * + * RCSID $Id: addrtot.c,v 1.22.2.1 2005/11/17 22:30:49 paul Exp $ + */ + +#if defined(__KERNEL__) && defined(__HAVE_ARCH_STRSTR) +#include +#endif + +#include "openswan.h" + +#define IP4BYTES 4 /* bytes in an IPv4 address */ +#define PERBYTE 4 /* three digits plus a dot or NUL */ +#define IP6BYTES 16 /* bytes in an IPv6 address */ + +/* forwards */ +static size_t normal4(const unsigned char *s, size_t len, char *b, char **dp); +static size_t normal6(const unsigned char *s, size_t len, char *b, char **dp, int squish); +static size_t reverse4(const unsigned char *s, size_t len, char *b, char **dp); +static size_t reverse6(const unsigned char *s, size_t len, char *b, char **dp); + +#if defined(__KERNEL__) && !defined(__HAVE_ARCH_STRSTR) +#define strstr ipsec_strstr +/* + * Find the first occurrence of find in s. + * (from NetBSD 1.6's /src/lib/libc/string/strstr.c) + */ +static char * +strstr(s, find) + const char *s, *find; +{ + char c, sc; + size_t len; + + if ((c = *find++) != 0) { + len = strlen(find); + do { + do { + if ((sc = *s++) == 0) + return (NULL); + } while (sc != c); + } while (strncmp(s, find, len) != 0); + s--; + } + /* LINTED interface specification */ + return ((char *)s); +} +#endif + +/* + - addrtot - convert binary address to text (dotted decimal or IPv6 string) + */ +size_t /* space needed for full conversion */ +addrtot(src, format, dst, dstlen) +const ip_address *src; +int format; /* character */ +char *dst; /* need not be valid if dstlen is 0 */ +size_t dstlen; +{ + const unsigned char *b; + size_t n; + char buf[1+ADDRTOT_BUF+1]; /* :address: */ + char *p; + int t = addrtypeof(src); +# define TF(t, f) (((t)<<8) | (f)) + + n = addrbytesptr(src, &b); + if (n == 0) { + bad: + dst[0]='\0'; + strncat(dst, "", dstlen); + return sizeof(""); + } + + switch (TF(t, format)) { + case TF(AF_INET, 0): + n = normal4(b, n, buf, &p); + break; + case TF(AF_INET6, 0): + n = normal6(b, n, buf, &p, 1); + break; + case TF(AF_INET, 'Q'): + n = normal4(b, n, buf, &p); + break; + case TF(AF_INET6, 'Q'): + n = normal6(b, n, buf, &p, 0); + break; + case TF(AF_INET, 'r'): + n = reverse4(b, n, buf, &p); + break; + case TF(AF_INET6, 'r'): + n = reverse6(b, n, buf, &p); + break; + default: /* including (AF_INET, 'R') */ + goto bad; + break; + } + + if (dstlen > 0) { + if (dstlen < n) + p[dstlen - 1] = '\0'; + strcpy(dst, p); + } + return n; +} + +/* + - normal4 - normal IPv4 address-text conversion + */ +static size_t /* size of text, including NUL */ +normal4(srcp, srclen, buf, dstp) +const unsigned char *srcp; +size_t srclen; +char *buf; /* guaranteed large enough */ +char **dstp; /* where to put result pointer */ +{ + int i; + char *p; + + if (srclen != IP4BYTES) /* "can't happen" */ + return 0; + p = buf; + for (i = 0; i < IP4BYTES; i++) { + p += ultot(srcp[i], 10, p, PERBYTE); + if (i != IP4BYTES - 1) + *(p-1) = '.'; /* overwrites the NUL */ + } + *dstp = buf; + return p - buf; +} + +/* + - normal6 - normal IPv6 address-text conversion + */ +static size_t /* size of text, including NUL */ +normal6(srcp, srclen, buf, dstp, squish) +const unsigned char *srcp; +size_t srclen; +char *buf; /* guaranteed large enough, plus 2 */ +char **dstp; /* where to put result pointer */ +int squish; /* whether to squish out 0:0 */ +{ + int i; + unsigned long piece; + char *p; + char *q; + + if (srclen != IP6BYTES) /* "can't happen" */ + return 0; + p = buf; + *p++ = ':'; + for (i = 0; i < IP6BYTES/2; i++) { + piece = (srcp[2*i] << 8) + srcp[2*i + 1]; + p += ultot(piece, 16, p, 5); /* 5 = abcd + NUL */ + *(p-1) = ':'; /* overwrites the NUL */ + } + *p = '\0'; + q = strstr(buf, ":0:0:"); + if (squish && q != NULL) { /* zero squishing is possible */ + p = q + 1; + while (*p == '0' && *(p+1) == ':') + p += 2; + q++; + *q++ = ':'; /* overwrite first 0 */ + while (*p != '\0') + *q++ = *p++; + *q = '\0'; + if (!(*(q-1) == ':' && *(q-2) == ':')) + *--q = '\0'; /* strip final : unless :: */ + p = buf; + if (!(*p == ':' && *(p+1) == ':')) + p++; /* skip initial : unless :: */ + } else { + q = p; + *--q = '\0'; /* strip final : */ + p = buf + 1; /* skip initial : */ + } + *dstp = p; + return q - p + 1; +} + +/* + - reverse4 - IPv4 reverse-lookup conversion + */ +static size_t /* size of text, including NUL */ +reverse4(srcp, srclen, buf, dstp) +const unsigned char *srcp; +size_t srclen; +char *buf; /* guaranteed large enough */ +char **dstp; /* where to put result pointer */ +{ + int i; + char *p; + + if (srclen != IP4BYTES) /* "can't happen" */ + return 0; + p = buf; + for (i = IP4BYTES-1; i >= 0; i--) { + p += ultot(srcp[i], 10, p, PERBYTE); + *(p-1) = '.'; /* overwrites the NUL */ + } + strcpy(p, "IN-ADDR.ARPA."); + *dstp = buf; + return strlen(buf) + 1; +} + +/* + - reverse6 - IPv6 reverse-lookup conversion (RFC 1886) + * A trifle inefficient, really shouldn't use ultot... + */ +static size_t /* size of text, including NUL */ +reverse6(srcp, srclen, buf, dstp) +const unsigned char *srcp; +size_t srclen; +char *buf; /* guaranteed large enough */ +char **dstp; /* where to put result pointer */ +{ + int i; + unsigned long piece; + char *p; + + if (srclen != IP6BYTES) /* "can't happen" */ + return 0; + p = buf; + for (i = IP6BYTES-1; i >= 0; i--) { + piece = srcp[i]; + p += ultot(piece&0xf, 16, p, 2); + *(p-1) = '.'; + p += ultot(piece>>4, 16, p, 2); + *(p-1) = '.'; + } + strcpy(p, "IP6.ARPA."); + *dstp = buf; + return strlen(buf) + 1; +} + +/* + - reverse6 - modern IPv6 reverse-lookup conversion (RFC 2874) + * this version removed as it was obsoleted in the end. + */ + +#ifdef ADDRTOT_MAIN + +#include +#include +#include +#include + +void regress(void); + +int +main(int argc, char *argv[]) +{ + if (argc < 2) { + fprintf(stderr, "Usage: %s {addr|net/mask|begin...end|-r}\n", + argv[0]); + exit(2); + } + + if (strcmp(argv[1], "-r") == 0) { + regress(); + fprintf(stderr, "regress() returned?!?\n"); + exit(1); + } + exit(0); +} + +struct rtab { + char *input; + char format; + char *output; /* NULL means error expected */ +} rtab[] = { + {"1.2.3.0", 0, "1.2.3.0"}, + {"1:2::3:4", 0, "1:2::3:4"}, + {"1:2::3:4", 'Q', "1:2:0:0:0:0:3:4"}, + {"1:2:0:0:3:4:0:0", 0, "1:2::3:4:0:0"}, + {"1.2.3.4", 'r' , "4.3.2.1.IN-ADDR.ARPA."}, + /* 0 1 2 3 4 5 6 7 8 9 a b c d e f 0 1 2 3 4 5 6 7 8 9 a b c d e f */ + {"1:2::3:4", 'r', "4.0.0.0.3.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.0.1.0.0.0.IP6.ARPA."}, + {NULL, 0, NULL} +}; + +void +regress() +{ + struct rtab *r; + int status = 0; + ip_address a; + char in[100]; + char buf[100]; + const char *oops; + size_t n; + + for (r = rtab; r->input != NULL; r++) { + strcpy(in, r->input); + + /* convert it *to* internal format */ + oops = ttoaddr(in, strlen(in), 0, &a); + + /* now convert it back */ + + n = addrtot(&a, r->format, buf, sizeof(buf)); + + if (n == 0 && r->output == NULL) + {} /* okay, error expected */ + + else if (n == 0) { + printf("`%s' atoasr failed\n", r->input); + status = 1; + + } else if (r->output == NULL) { + printf("`%s' atoasr succeeded unexpectedly '%c'\n", + r->input, r->format); + status = 1; + } else { + if (strcasecmp(r->output, buf) != 0) { + printf("`%s' '%c' gave `%s', expected `%s'\n", + r->input, r->format, buf, r->output); + status = 1; + } + } + } + exit(status); +} + +#endif /* ADDRTOT_MAIN */ + +/* + * $Log: addrtot.c,v $ + * Revision 1.22.2.1 2005/11/17 22:30:49 paul + * pull up strstr fix from head. + * + * Revision 1.22 2005/05/20 16:47:40 mcr + * make strstr static if we need it. + * + * Revision 1.21 2005/03/21 00:35:12 mcr + * test for strstr properly + * + * Revision 1.20 2004/11/09 22:52:20 mcr + * until we figure out which kernels have strsep and which + * do not (UML does not under certain circumstances), then + * let's just provide our own. + * + * Revision 1.19 2004/10/08 16:30:33 mcr + * pull-up of initial crypto-offload work. + * + * Revision 1.18 2004/09/18 19:33:08 mcr + * use an appropriate kernel happy ifdef for strstr. + * + * Revision 1.17 2004/09/15 21:49:02 mcr + * use local copy of strstr() if this is going in the kernel. + * Not clear why this worked before, or why this shows up + * for modules only. + * + * Revision 1.16 2004/07/10 07:43:47 mcr + * Moved from linux/lib/libfreeswan/addrtot.c,v + * + * Revision 1.15 2004/04/11 17:39:25 mcr + * removed internal.h requirements. + * + * Revision 1.14 2004/03/08 01:59:08 ken + * freeswan.h -> openswan.h + * + * Revision 1.13 2004/01/05 23:21:05 mcr + * if the address type is invalid, then return length of + * string! + * + * Revision 1.12 2003/12/30 06:42:48 mcr + * added $Log: addrtot.c,v $ + * added Revision 1.22.2.1 2005/11/17 22:30:49 paul + * added pull up strstr fix from head. + * added + * added Revision 1.22 2005/05/20 16:47:40 mcr + * added make strstr static if we need it. + * added + * added Revision 1.21 2005/03/21 00:35:12 mcr + * added test for strstr properly + * added + * added Revision 1.20 2004/11/09 22:52:20 mcr + * added until we figure out which kernels have strsep and which + * added do not (UML does not under certain circumstances), then + * added let's just provide our own. + * added + * added Revision 1.19 2004/10/08 16:30:33 mcr + * added pull-up of initial crypto-offload work. + * added + * added Revision 1.18 2004/09/18 19:33:08 mcr + * added use an appropriate kernel happy ifdef for strstr. + * added + * added Revision 1.17 2004/09/15 21:49:02 mcr + * added use local copy of strstr() if this is going in the kernel. + * added Not clear why this worked before, or why this shows up + * added for modules only. + * added + * added Revision 1.16 2004/07/10 07:43:47 mcr + * added Moved from linux/lib/libfreeswan/addrtot.c,v + * added + * added Revision 1.15 2004/04/11 17:39:25 mcr + * added removed internal.h requirements. + * added + * added Revision 1.14 2004/03/08 01:59:08 ken + * added freeswan.h -> openswan.h + * added + * added Revision 1.13 2004/01/05 23:21:05 mcr + * added if the address type is invalid, then return length of + * added string! + * added + * + * + */ + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/addrtypeof.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,93 @@ +/* + * extract parts of an ip_address + * Copyright (C) 2000 Henry Spencer. + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + * License for more details. + * + * RCSID $Id: addrtypeof.c,v 1.10 2004/07/10 07:43:47 mcr Exp $ + */ +#include "openswan.h" + +/* + - addrtypeof - get the type of an ip_address + */ +int +addrtypeof(src) +const ip_address *src; +{ + return src->u.v4.sin_family; +} + +/* + - addrbytesptr - get pointer to the address bytes of an ip_address + */ +size_t /* 0 for error */ +addrbytesptr(src, dstp) +const ip_address *src; +const unsigned char **dstp; /* NULL means just a size query */ +{ + const unsigned char *p; + size_t n; + + switch (src->u.v4.sin_family) { + case AF_INET: + p = (const unsigned char *)&src->u.v4.sin_addr.s_addr; + n = 4; + break; + case AF_INET6: + p = (const unsigned char *)&src->u.v6.sin6_addr; + n = 16; + break; + default: + return 0; + break; + } + + if (dstp != NULL) + *dstp = p; + return n; +} + +/* + - addrlenof - get length of the address bytes of an ip_address + */ +size_t /* 0 for error */ +addrlenof(src) +const ip_address *src; +{ + return addrbytesptr(src, NULL); +} + +/* + - addrbytesof - get the address bytes of an ip_address + */ +size_t /* 0 for error */ +addrbytesof(src, dst, dstlen) +const ip_address *src; +unsigned char *dst; +size_t dstlen; +{ + const unsigned char *p; + size_t n; + size_t ncopy; + + n = addrbytesptr(src, &p); + if (n == 0) + return 0; + + if (dstlen > 0) { + ncopy = n; + if (ncopy > dstlen) + ncopy = dstlen; + memcpy(dst, p, ncopy); + } + return n; +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/adler32.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,49 @@ +/* adler32.c -- compute the Adler-32 checksum of a data stream + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* @(#) $Id: adler32.c,v 1.6 2004/07/10 19:11:18 mcr Exp $ */ + +#include +#include + +#define BASE 65521L /* largest prime smaller than 65536 */ +#define NMAX 5552 +/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */ + +#define DO1(buf,i) {s1 += buf[i]; s2 += s1;} +#define DO2(buf,i) DO1(buf,i); DO1(buf,i+1); +#define DO4(buf,i) DO2(buf,i); DO2(buf,i+2); +#define DO8(buf,i) DO4(buf,i); DO4(buf,i+4); +#define DO16(buf) DO8(buf,0); DO8(buf,8); + +/* ========================================================================= */ +uLong ZEXPORT adler32(adler, buf, len) + uLong adler; + const Bytef *buf; + uInt len; +{ + unsigned long s1 = adler & 0xffff; + unsigned long s2 = (adler >> 16) & 0xffff; + int k; + + if (buf == Z_NULL) return 1L; + + while (len > 0) { + k = len < NMAX ? len : NMAX; + len -= k; + while (k >= 16) { + DO16(buf); + buf += 16; + k -= 16; + } + if (k != 0) do { + s1 += *buf++; + s2 += s1; + } while (--k); + s1 %= BASE; + s2 %= BASE; + } + return (s2 << 16) | s1; +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/aes/Makefile Mon Feb 9 13:51:03 2004 @@ -0,0 +1,59 @@ +# Makefile for KLIPS 3DES kernel code as a module for 2.6 kernels +# +# Makefile for KLIPS kernel code as a module +# Copyright (C) 2002-2004 Michael Richardson +# +# This program is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by the +# Free Software Foundation; either version 2 of the License, or (at your +# option) any later version. See . +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +# for more details. +# +# RCSID $Id: Makefile.fs2_6,v 1.1.10.1 2005/08/12 16:10:05 ken Exp $ +# +# Note! Dependencies are done automagically by 'make dep', which also +# removes any old dependencies. DON'T put your own dependencies here +# unless it's something special (ie not a .c file). +# + +obj-$(CONFIG_KLIPS_ENC_AES) += ipsec_alg_aes.o +obj-$(CONFIG_KLIPS_ENC_AES) += aes_xcbc_mac.o +obj-$(CONFIG_KLIPS_ENC_AES) += aes_cbc.o + +ifeq ($(strip ${SUBARCH}),) +SUBARCH:=${ARCH} +endif + +# the assembly version expects frame pointers, which are +# optional in many kernel builds. If you want speed, you should +# probably use cryptoapi code instead. +USEASSEMBLY=${SUBARCH}${CONFIG_FRAME_POINTER} +ifeq (${USEASSEMBLY},i386y) +obj-$(CONFIG_KLIPS_ENC_AES) += aes-i586.o +else +obj-$(CONFIG_KLIPS_ENC_AES) += aes.o +endif + + +# +# $Log: Makefile.fs2_6,v $ +# Revision 1.1.10.1 2005/08/12 16:10:05 ken +# do not use assembly code with there are no frame pointers +# +# Revision 1.2 2005/08/12 14:13:58 mcr +# do not use assembly code with there are no frame pointers, +# as it does not have the right linkages. +# +# Revision 1.1 2004/08/17 03:31:34 mcr +# klips 2.6 edits. +# +# +# Local Variables: +# compile-command: "(cd ../../.. && source umlsetup.sh && make -C ${POOLSPACE} module/ipsec.o)" +# End Variables: +# + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/aes/aes-i586.S Mon Feb 9 13:51:03 2004 @@ -0,0 +1,892 @@ +// +// Copyright (c) 2001, Dr Brian Gladman , Worcester, UK. +// All rights reserved. +// +// TERMS +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted subject to the following conditions: +// +// 1. Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// +// 2. Redistributions in binary form must reproduce the above copyright +// notice, this list of conditions and the following disclaimer in the +// documentation and/or other materials provided with the distribution. +// +// 3. The copyright holder's name must not be used to endorse or promote +// any products derived from this software without his specific prior +// written permission. +// +// This software is provided 'as is' with no express or implied warranties +// of correctness or fitness for purpose. + +// Modified by Jari Ruusu, December 24 2001 +// - Converted syntax to GNU CPP/assembler syntax +// - C programming interface converted back to "old" API +// - Minor portability cleanups and speed optimizations + +// An AES (Rijndael) implementation for the Pentium. This version only +// implements the standard AES block length (128 bits, 16 bytes). This code +// does not preserve the eax, ecx or edx registers or the artihmetic status +// flags. However, the ebx, esi, edi, and ebp registers are preserved across +// calls. + +// void aes_set_key(aes_context *cx, const unsigned char key[], const int key_len, const int f) +// void aes_encrypt(const aes_context *cx, const unsigned char in_blk[], unsigned char out_blk[]) +// void aes_decrypt(const aes_context *cx, const unsigned char in_blk[], unsigned char out_blk[]) + +#if defined(USE_UNDERLINE) +# define aes_set_key _aes_set_key +# define aes_encrypt _aes_encrypt +# define aes_decrypt _aes_decrypt +#endif +#if !defined(ALIGN32BYTES) +# define ALIGN32BYTES 32 +#endif + + .file "aes-i586.S" + .globl aes_set_key + .globl aes_encrypt + .globl aes_decrypt + +#define tlen 1024 // length of each of 4 'xor' arrays (256 32-bit words) + +// offsets to parameters with one register pushed onto stack + +#define ctx 8 // AES context structure +#define in_blk 12 // input byte array address parameter +#define out_blk 16 // output byte array address parameter + +// offsets in context structure + +#define nkey 0 // key length, size 4 +#define nrnd 4 // number of rounds, size 4 +#define ekey 8 // encryption key schedule base address, size 256 +#define dkey 264 // decryption key schedule base address, size 256 + +// This macro performs a forward encryption cycle. It is entered with +// the first previous round column values in %eax, %ebx, %esi and %edi and +// exits with the final values in the same registers. + +#define fwd_rnd(p1,p2) \ + mov %ebx,(%esp) ;\ + movzbl %al,%edx ;\ + mov %eax,%ecx ;\ + mov p2(%ebp),%eax ;\ + mov %edi,4(%esp) ;\ + mov p2+12(%ebp),%edi ;\ + xor p1(,%edx,4),%eax ;\ + movzbl %ch,%edx ;\ + shr $16,%ecx ;\ + mov p2+4(%ebp),%ebx ;\ + xor p1+tlen(,%edx,4),%edi ;\ + movzbl %cl,%edx ;\ + movzbl %ch,%ecx ;\ + xor p1+3*tlen(,%ecx,4),%ebx ;\ + mov %esi,%ecx ;\ + mov p1+2*tlen(,%edx,4),%esi ;\ + movzbl %cl,%edx ;\ + xor p1(,%edx,4),%esi ;\ + movzbl %ch,%edx ;\ + shr $16,%ecx ;\ + xor p1+tlen(,%edx,4),%ebx ;\ + movzbl %cl,%edx ;\ + movzbl %ch,%ecx ;\ + xor p1+2*tlen(,%edx,4),%eax ;\ + mov (%esp),%edx ;\ + xor p1+3*tlen(,%ecx,4),%edi ;\ + movzbl %dl,%ecx ;\ + xor p2+8(%ebp),%esi ;\ + xor p1(,%ecx,4),%ebx ;\ + movzbl %dh,%ecx ;\ + shr $16,%edx ;\ + xor p1+tlen(,%ecx,4),%eax ;\ + movzbl %dl,%ecx ;\ + movzbl %dh,%edx ;\ + xor p1+2*tlen(,%ecx,4),%edi ;\ + mov 4(%esp),%ecx ;\ + xor p1+3*tlen(,%edx,4),%esi ;\ + movzbl %cl,%edx ;\ + xor p1(,%edx,4),%edi ;\ + movzbl %ch,%edx ;\ + shr $16,%ecx ;\ + xor p1+tlen(,%edx,4),%esi ;\ + movzbl %cl,%edx ;\ + movzbl %ch,%ecx ;\ + xor p1+2*tlen(,%edx,4),%ebx ;\ + xor p1+3*tlen(,%ecx,4),%eax + +// This macro performs an inverse encryption cycle. It is entered with +// the first previous round column values in %eax, %ebx, %esi and %edi and +// exits with the final values in the same registers. + +#define inv_rnd(p1,p2) \ + movzbl %al,%edx ;\ + mov %ebx,(%esp) ;\ + mov %eax,%ecx ;\ + mov p2(%ebp),%eax ;\ + mov %edi,4(%esp) ;\ + mov p2+4(%ebp),%ebx ;\ + xor p1(,%edx,4),%eax ;\ + movzbl %ch,%edx ;\ + shr $16,%ecx ;\ + mov p2+12(%ebp),%edi ;\ + xor p1+tlen(,%edx,4),%ebx ;\ + movzbl %cl,%edx ;\ + movzbl %ch,%ecx ;\ + xor p1+3*tlen(,%ecx,4),%edi ;\ + mov %esi,%ecx ;\ + mov p1+2*tlen(,%edx,4),%esi ;\ + movzbl %cl,%edx ;\ + xor p1(,%edx,4),%esi ;\ + movzbl %ch,%edx ;\ + shr $16,%ecx ;\ + xor p1+tlen(,%edx,4),%edi ;\ + movzbl %cl,%edx ;\ + movzbl %ch,%ecx ;\ + xor p1+2*tlen(,%edx,4),%eax ;\ + mov (%esp),%edx ;\ + xor p1+3*tlen(,%ecx,4),%ebx ;\ + movzbl %dl,%ecx ;\ + xor p2+8(%ebp),%esi ;\ + xor p1(,%ecx,4),%ebx ;\ + movzbl %dh,%ecx ;\ + shr $16,%edx ;\ + xor p1+tlen(,%ecx,4),%esi ;\ + movzbl %dl,%ecx ;\ + movzbl %dh,%edx ;\ + xor p1+2*tlen(,%ecx,4),%edi ;\ + mov 4(%esp),%ecx ;\ + xor p1+3*tlen(,%edx,4),%eax ;\ + movzbl %cl,%edx ;\ + xor p1(,%edx,4),%edi ;\ + movzbl %ch,%edx ;\ + shr $16,%ecx ;\ + xor p1+tlen(,%edx,4),%eax ;\ + movzbl %cl,%edx ;\ + movzbl %ch,%ecx ;\ + xor p1+2*tlen(,%edx,4),%ebx ;\ + xor p1+3*tlen(,%ecx,4),%esi + +// AES (Rijndael) Encryption Subroutine + + .text + .align ALIGN32BYTES +aes_encrypt: + push %ebp + mov ctx(%esp),%ebp // pointer to context + mov in_blk(%esp),%ecx + push %ebx + push %esi + push %edi + mov nrnd(%ebp),%edx // number of rounds + lea ekey+16(%ebp),%ebp // key pointer + +// input four columns and xor in first round key + + mov (%ecx),%eax + mov 4(%ecx),%ebx + mov 8(%ecx),%esi + mov 12(%ecx),%edi + xor -16(%ebp),%eax + xor -12(%ebp),%ebx + xor -8(%ebp),%esi + xor -4(%ebp),%edi + + sub $8,%esp // space for register saves on stack + + sub $10,%edx + je aes_15 + add $32,%ebp + sub $2,%edx + je aes_13 + add $32,%ebp + + fwd_rnd(aes_ft_tab,-64) // 14 rounds for 256-bit key + fwd_rnd(aes_ft_tab,-48) +aes_13: fwd_rnd(aes_ft_tab,-32) // 12 rounds for 192-bit key + fwd_rnd(aes_ft_tab,-16) +aes_15: fwd_rnd(aes_ft_tab,0) // 10 rounds for 128-bit key + fwd_rnd(aes_ft_tab,16) + fwd_rnd(aes_ft_tab,32) + fwd_rnd(aes_ft_tab,48) + fwd_rnd(aes_ft_tab,64) + fwd_rnd(aes_ft_tab,80) + fwd_rnd(aes_ft_tab,96) + fwd_rnd(aes_ft_tab,112) + fwd_rnd(aes_ft_tab,128) + fwd_rnd(aes_fl_tab,144) // last round uses a different table + +// move final values to the output array. + + mov out_blk+20(%esp),%ebp + add $8,%esp + mov %eax,(%ebp) + mov %ebx,4(%ebp) + mov %esi,8(%ebp) + mov %edi,12(%ebp) + pop %edi + pop %esi + pop %ebx + pop %ebp + ret + + +// AES (Rijndael) Decryption Subroutine + + .align ALIGN32BYTES +aes_decrypt: + push %ebp + mov ctx(%esp),%ebp // pointer to context + mov in_blk(%esp),%ecx + push %ebx + push %esi + push %edi + mov nrnd(%ebp),%edx // number of rounds + lea dkey+16(%ebp),%ebp // key pointer + +// input four columns and xor in first round key + + mov (%ecx),%eax + mov 4(%ecx),%ebx + mov 8(%ecx),%esi + mov 12(%ecx),%edi + xor -16(%ebp),%eax + xor -12(%ebp),%ebx + xor -8(%ebp),%esi + xor -4(%ebp),%edi + + sub $8,%esp // space for register saves on stack + + sub $10,%edx + je aes_25 + add $32,%ebp + sub $2,%edx + je aes_23 + add $32,%ebp + + inv_rnd(aes_it_tab,-64) // 14 rounds for 256-bit key + inv_rnd(aes_it_tab,-48) +aes_23: inv_rnd(aes_it_tab,-32) // 12 rounds for 192-bit key + inv_rnd(aes_it_tab,-16) +aes_25: inv_rnd(aes_it_tab,0) // 10 rounds for 128-bit key + inv_rnd(aes_it_tab,16) + inv_rnd(aes_it_tab,32) + inv_rnd(aes_it_tab,48) + inv_rnd(aes_it_tab,64) + inv_rnd(aes_it_tab,80) + inv_rnd(aes_it_tab,96) + inv_rnd(aes_it_tab,112) + inv_rnd(aes_it_tab,128) + inv_rnd(aes_il_tab,144) // last round uses a different table + +// move final values to the output array. + + mov out_blk+20(%esp),%ebp + add $8,%esp + mov %eax,(%ebp) + mov %ebx,4(%ebp) + mov %esi,8(%ebp) + mov %edi,12(%ebp) + pop %edi + pop %esi + pop %ebx + pop %ebp + ret + +// AES (Rijndael) Key Schedule Subroutine + +// input/output parameters + +#define aes_cx 12 // AES context +#define in_key 16 // key input array address +#define key_ln 20 // key length, bytes (16,24,32) or bits (128,192,256) +#define ed_flg 24 // 0=create both encr/decr keys, 1=create encr key only + +// offsets for locals + +#define cnt -4 +#define kpf -8 +#define slen 8 + +// This macro performs a column mixing operation on an input 32-bit +// word to give a 32-bit result. It uses each of the 4 bytes in the +// the input column to index 4 different tables of 256 32-bit words +// that are xored together to form the output value. + +#define mix_col(p1) \ + movzbl %bl,%ecx ;\ + mov p1(,%ecx,4),%eax ;\ + movzbl %bh,%ecx ;\ + ror $16,%ebx ;\ + xor p1+tlen(,%ecx,4),%eax ;\ + movzbl %bl,%ecx ;\ + xor p1+2*tlen(,%ecx,4),%eax ;\ + movzbl %bh,%ecx ;\ + xor p1+3*tlen(,%ecx,4),%eax + +// Key Schedule Macros + +#define ksc4(p1) \ + rol $24,%ebx ;\ + mix_col(aes_fl_tab) ;\ + ror $8,%ebx ;\ + xor 4*p1+aes_rcon_tab,%eax ;\ + xor %eax,%esi ;\ + xor %esi,%ebp ;\ + mov %esi,16*p1(%edi) ;\ + mov %ebp,16*p1+4(%edi) ;\ + xor %ebp,%edx ;\ + xor %edx,%ebx ;\ + mov %edx,16*p1+8(%edi) ;\ + mov %ebx,16*p1+12(%edi) + +#define ksc6(p1) \ + rol $24,%ebx ;\ + mix_col(aes_fl_tab) ;\ + ror $8,%ebx ;\ + xor 4*p1+aes_rcon_tab,%eax ;\ + xor 24*p1-24(%edi),%eax ;\ + mov %eax,24*p1(%edi) ;\ + xor 24*p1-20(%edi),%eax ;\ + mov %eax,24*p1+4(%edi) ;\ + xor %eax,%esi ;\ + xor %esi,%ebp ;\ + mov %esi,24*p1+8(%edi) ;\ + mov %ebp,24*p1+12(%edi) ;\ + xor %ebp,%edx ;\ + xor %edx,%ebx ;\ + mov %edx,24*p1+16(%edi) ;\ + mov %ebx,24*p1+20(%edi) + +#define ksc8(p1) \ + rol $24,%ebx ;\ + mix_col(aes_fl_tab) ;\ + ror $8,%ebx ;\ + xor 4*p1+aes_rcon_tab,%eax ;\ + xor 32*p1-32(%edi),%eax ;\ + mov %eax,32*p1(%edi) ;\ + xor 32*p1-28(%edi),%eax ;\ + mov %eax,32*p1+4(%edi) ;\ + xor 32*p1-24(%edi),%eax ;\ + mov %eax,32*p1+8(%edi) ;\ + xor 32*p1-20(%edi),%eax ;\ + mov %eax,32*p1+12(%edi) ;\ + push %ebx ;\ + mov %eax,%ebx ;\ + mix_col(aes_fl_tab) ;\ + pop %ebx ;\ + xor %eax,%esi ;\ + xor %esi,%ebp ;\ + mov %esi,32*p1+16(%edi) ;\ + mov %ebp,32*p1+20(%edi) ;\ + xor %ebp,%edx ;\ + xor %edx,%ebx ;\ + mov %edx,32*p1+24(%edi) ;\ + mov %ebx,32*p1+28(%edi) + + .align ALIGN32BYTES +aes_set_key: + pushfl + push %ebp + mov %esp,%ebp + sub $slen,%esp + push %ebx + push %esi + push %edi + + mov aes_cx(%ebp),%edx // edx -> AES context + + mov key_ln(%ebp),%ecx // key length + cmpl $128,%ecx + jb aes_30 + shr $3,%ecx +aes_30: cmpl $32,%ecx + je aes_32 + cmpl $24,%ecx + je aes_32 + mov $16,%ecx +aes_32: shr $2,%ecx + mov %ecx,nkey(%edx) + + lea 6(%ecx),%eax // 10/12/14 for 4/6/8 32-bit key length + mov %eax,nrnd(%edx) + + mov in_key(%ebp),%esi // key input array + lea ekey(%edx),%edi // key position in AES context + cld + push %ebp + mov %ecx,%eax // save key length in eax + rep ; movsl // words in the key schedule + mov -4(%esi),%ebx // put some values in registers + mov -8(%esi),%edx // to allow faster code + mov -12(%esi),%ebp + mov -16(%esi),%esi + + cmpl $4,%eax // jump on key size + je aes_36 + cmpl $6,%eax + je aes_35 + + ksc8(0) + ksc8(1) + ksc8(2) + ksc8(3) + ksc8(4) + ksc8(5) + ksc8(6) + jmp aes_37 +aes_35: ksc6(0) + ksc6(1) + ksc6(2) + ksc6(3) + ksc6(4) + ksc6(5) + ksc6(6) + ksc6(7) + jmp aes_37 +aes_36: ksc4(0) + ksc4(1) + ksc4(2) + ksc4(3) + ksc4(4) + ksc4(5) + ksc4(6) + ksc4(7) + ksc4(8) + ksc4(9) +aes_37: pop %ebp + mov aes_cx(%ebp),%edx // edx -> AES context + cmpl $0,ed_flg(%ebp) + jne aes_39 + +// compile decryption key schedule from encryption schedule - reverse +// order and do mix_column operation on round keys except first and last + + mov nrnd(%edx),%eax // kt = cx->d_key + nc * cx->Nrnd + shl $2,%eax + lea dkey(%edx,%eax,4),%edi + lea ekey(%edx),%esi // kf = cx->e_key + + movsl // copy first round key (unmodified) + movsl + movsl + movsl + sub $32,%edi + movl $1,cnt(%ebp) +aes_38: // do mix column on each column of + lodsl // each round key + mov %eax,%ebx + mix_col(aes_im_tab) + stosl + lodsl + mov %eax,%ebx + mix_col(aes_im_tab) + stosl + lodsl + mov %eax,%ebx + mix_col(aes_im_tab) + stosl + lodsl + mov %eax,%ebx + mix_col(aes_im_tab) + stosl + sub $32,%edi + + incl cnt(%ebp) + mov cnt(%ebp),%eax + cmp nrnd(%edx),%eax + jb aes_38 + + movsl // copy last round key (unmodified) + movsl + movsl + movsl +aes_39: pop %edi + pop %esi + pop %ebx + mov %ebp,%esp + pop %ebp + popfl + ret + + +// finite field multiplies by {02}, {04} and {08} + +#define f2(x) ((x<<1)^(((x>>7)&1)*0x11b)) +#define f4(x) ((x<<2)^(((x>>6)&1)*0x11b)^(((x>>6)&2)*0x11b)) +#define f8(x) ((x<<3)^(((x>>5)&1)*0x11b)^(((x>>5)&2)*0x11b)^(((x>>5)&4)*0x11b)) + +// finite field multiplies required in table generation + +#define f3(x) (f2(x) ^ x) +#define f9(x) (f8(x) ^ x) +#define fb(x) (f8(x) ^ f2(x) ^ x) +#define fd(x) (f8(x) ^ f4(x) ^ x) +#define fe(x) (f8(x) ^ f4(x) ^ f2(x)) + +// These defines generate the forward table entries + +#define u0(x) ((f3(x) << 24) | (x << 16) | (x << 8) | f2(x)) +#define u1(x) ((x << 24) | (x << 16) | (f2(x) << 8) | f3(x)) +#define u2(x) ((x << 24) | (f2(x) << 16) | (f3(x) << 8) | x) +#define u3(x) ((f2(x) << 24) | (f3(x) << 16) | (x << 8) | x) + +// These defines generate the inverse table entries + +#define v0(x) ((fb(x) << 24) | (fd(x) << 16) | (f9(x) << 8) | fe(x)) +#define v1(x) ((fd(x) << 24) | (f9(x) << 16) | (fe(x) << 8) | fb(x)) +#define v2(x) ((f9(x) << 24) | (fe(x) << 16) | (fb(x) << 8) | fd(x)) +#define v3(x) ((fe(x) << 24) | (fb(x) << 16) | (fd(x) << 8) | f9(x)) + +// These defines generate entries for the last round tables + +#define w0(x) (x) +#define w1(x) (x << 8) +#define w2(x) (x << 16) +#define w3(x) (x << 24) + +// macro to generate inverse mix column tables (needed for the key schedule) + +#define im_data0(p1) \ + .long p1(0x00),p1(0x01),p1(0x02),p1(0x03),p1(0x04),p1(0x05),p1(0x06),p1(0x07) ;\ + .long p1(0x08),p1(0x09),p1(0x0a),p1(0x0b),p1(0x0c),p1(0x0d),p1(0x0e),p1(0x0f) ;\ + .long p1(0x10),p1(0x11),p1(0x12),p1(0x13),p1(0x14),p1(0x15),p1(0x16),p1(0x17) ;\ + .long p1(0x18),p1(0x19),p1(0x1a),p1(0x1b),p1(0x1c),p1(0x1d),p1(0x1e),p1(0x1f) +#define im_data1(p1) \ + .long p1(0x20),p1(0x21),p1(0x22),p1(0x23),p1(0x24),p1(0x25),p1(0x26),p1(0x27) ;\ + .long p1(0x28),p1(0x29),p1(0x2a),p1(0x2b),p1(0x2c),p1(0x2d),p1(0x2e),p1(0x2f) ;\ + .long p1(0x30),p1(0x31),p1(0x32),p1(0x33),p1(0x34),p1(0x35),p1(0x36),p1(0x37) ;\ + .long p1(0x38),p1(0x39),p1(0x3a),p1(0x3b),p1(0x3c),p1(0x3d),p1(0x3e),p1(0x3f) +#define im_data2(p1) \ + .long p1(0x40),p1(0x41),p1(0x42),p1(0x43),p1(0x44),p1(0x45),p1(0x46),p1(0x47) ;\ + .long p1(0x48),p1(0x49),p1(0x4a),p1(0x4b),p1(0x4c),p1(0x4d),p1(0x4e),p1(0x4f) ;\ + .long p1(0x50),p1(0x51),p1(0x52),p1(0x53),p1(0x54),p1(0x55),p1(0x56),p1(0x57) ;\ + .long p1(0x58),p1(0x59),p1(0x5a),p1(0x5b),p1(0x5c),p1(0x5d),p1(0x5e),p1(0x5f) +#define im_data3(p1) \ + .long p1(0x60),p1(0x61),p1(0x62),p1(0x63),p1(0x64),p1(0x65),p1(0x66),p1(0x67) ;\ + .long p1(0x68),p1(0x69),p1(0x6a),p1(0x6b),p1(0x6c),p1(0x6d),p1(0x6e),p1(0x6f) ;\ + .long p1(0x70),p1(0x71),p1(0x72),p1(0x73),p1(0x74),p1(0x75),p1(0x76),p1(0x77) ;\ + .long p1(0x78),p1(0x79),p1(0x7a),p1(0x7b),p1(0x7c),p1(0x7d),p1(0x7e),p1(0x7f) +#define im_data4(p1) \ + .long p1(0x80),p1(0x81),p1(0x82),p1(0x83),p1(0x84),p1(0x85),p1(0x86),p1(0x87) ;\ + .long p1(0x88),p1(0x89),p1(0x8a),p1(0x8b),p1(0x8c),p1(0x8d),p1(0x8e),p1(0x8f) ;\ + .long p1(0x90),p1(0x91),p1(0x92),p1(0x93),p1(0x94),p1(0x95),p1(0x96),p1(0x97) ;\ + .long p1(0x98),p1(0x99),p1(0x9a),p1(0x9b),p1(0x9c),p1(0x9d),p1(0x9e),p1(0x9f) +#define im_data5(p1) \ + .long p1(0xa0),p1(0xa1),p1(0xa2),p1(0xa3),p1(0xa4),p1(0xa5),p1(0xa6),p1(0xa7) ;\ + .long p1(0xa8),p1(0xa9),p1(0xaa),p1(0xab),p1(0xac),p1(0xad),p1(0xae),p1(0xaf) ;\ + .long p1(0xb0),p1(0xb1),p1(0xb2),p1(0xb3),p1(0xb4),p1(0xb5),p1(0xb6),p1(0xb7) ;\ + .long p1(0xb8),p1(0xb9),p1(0xba),p1(0xbb),p1(0xbc),p1(0xbd),p1(0xbe),p1(0xbf) +#define im_data6(p1) \ + .long p1(0xc0),p1(0xc1),p1(0xc2),p1(0xc3),p1(0xc4),p1(0xc5),p1(0xc6),p1(0xc7) ;\ + .long p1(0xc8),p1(0xc9),p1(0xca),p1(0xcb),p1(0xcc),p1(0xcd),p1(0xce),p1(0xcf) ;\ + .long p1(0xd0),p1(0xd1),p1(0xd2),p1(0xd3),p1(0xd4),p1(0xd5),p1(0xd6),p1(0xd7) ;\ + .long p1(0xd8),p1(0xd9),p1(0xda),p1(0xdb),p1(0xdc),p1(0xdd),p1(0xde),p1(0xdf) +#define im_data7(p1) \ + .long p1(0xe0),p1(0xe1),p1(0xe2),p1(0xe3),p1(0xe4),p1(0xe5),p1(0xe6),p1(0xe7) ;\ + .long p1(0xe8),p1(0xe9),p1(0xea),p1(0xeb),p1(0xec),p1(0xed),p1(0xee),p1(0xef) ;\ + .long p1(0xf0),p1(0xf1),p1(0xf2),p1(0xf3),p1(0xf4),p1(0xf5),p1(0xf6),p1(0xf7) ;\ + .long p1(0xf8),p1(0xf9),p1(0xfa),p1(0xfb),p1(0xfc),p1(0xfd),p1(0xfe),p1(0xff) + +// S-box data - 256 entries + +#define sb_data0(p1) \ + .long p1(0x63),p1(0x7c),p1(0x77),p1(0x7b),p1(0xf2),p1(0x6b),p1(0x6f),p1(0xc5) ;\ + .long p1(0x30),p1(0x01),p1(0x67),p1(0x2b),p1(0xfe),p1(0xd7),p1(0xab),p1(0x76) ;\ + .long p1(0xca),p1(0x82),p1(0xc9),p1(0x7d),p1(0xfa),p1(0x59),p1(0x47),p1(0xf0) ;\ + .long p1(0xad),p1(0xd4),p1(0xa2),p1(0xaf),p1(0x9c),p1(0xa4),p1(0x72),p1(0xc0) +#define sb_data1(p1) \ + .long p1(0xb7),p1(0xfd),p1(0x93),p1(0x26),p1(0x36),p1(0x3f),p1(0xf7),p1(0xcc) ;\ + .long p1(0x34),p1(0xa5),p1(0xe5),p1(0xf1),p1(0x71),p1(0xd8),p1(0x31),p1(0x15) ;\ + .long p1(0x04),p1(0xc7),p1(0x23),p1(0xc3),p1(0x18),p1(0x96),p1(0x05),p1(0x9a) ;\ + .long p1(0x07),p1(0x12),p1(0x80),p1(0xe2),p1(0xeb),p1(0x27),p1(0xb2),p1(0x75) +#define sb_data2(p1) \ + .long p1(0x09),p1(0x83),p1(0x2c),p1(0x1a),p1(0x1b),p1(0x6e),p1(0x5a),p1(0xa0) ;\ + .long p1(0x52),p1(0x3b),p1(0xd6),p1(0xb3),p1(0x29),p1(0xe3),p1(0x2f),p1(0x84) ;\ + .long p1(0x53),p1(0xd1),p1(0x00),p1(0xed),p1(0x20),p1(0xfc),p1(0xb1),p1(0x5b) ;\ + .long p1(0x6a),p1(0xcb),p1(0xbe),p1(0x39),p1(0x4a),p1(0x4c),p1(0x58),p1(0xcf) +#define sb_data3(p1) \ + .long p1(0xd0),p1(0xef),p1(0xaa),p1(0xfb),p1(0x43),p1(0x4d),p1(0x33),p1(0x85) ;\ + .long p1(0x45),p1(0xf9),p1(0x02),p1(0x7f),p1(0x50),p1(0x3c),p1(0x9f),p1(0xa8) ;\ + .long p1(0x51),p1(0xa3),p1(0x40),p1(0x8f),p1(0x92),p1(0x9d),p1(0x38),p1(0xf5) ;\ + .long p1(0xbc),p1(0xb6),p1(0xda),p1(0x21),p1(0x10),p1(0xff),p1(0xf3),p1(0xd2) +#define sb_data4(p1) \ + .long p1(0xcd),p1(0x0c),p1(0x13),p1(0xec),p1(0x5f),p1(0x97),p1(0x44),p1(0x17) ;\ + .long p1(0xc4),p1(0xa7),p1(0x7e),p1(0x3d),p1(0x64),p1(0x5d),p1(0x19),p1(0x73) ;\ + .long p1(0x60),p1(0x81),p1(0x4f),p1(0xdc),p1(0x22),p1(0x2a),p1(0x90),p1(0x88) ;\ + .long p1(0x46),p1(0xee),p1(0xb8),p1(0x14),p1(0xde),p1(0x5e),p1(0x0b),p1(0xdb) +#define sb_data5(p1) \ + .long p1(0xe0),p1(0x32),p1(0x3a),p1(0x0a),p1(0x49),p1(0x06),p1(0x24),p1(0x5c) ;\ + .long p1(0xc2),p1(0xd3),p1(0xac),p1(0x62),p1(0x91),p1(0x95),p1(0xe4),p1(0x79) ;\ + .long p1(0xe7),p1(0xc8),p1(0x37),p1(0x6d),p1(0x8d),p1(0xd5),p1(0x4e),p1(0xa9) ;\ + .long p1(0x6c),p1(0x56),p1(0xf4),p1(0xea),p1(0x65),p1(0x7a),p1(0xae),p1(0x08) +#define sb_data6(p1) \ + .long p1(0xba),p1(0x78),p1(0x25),p1(0x2e),p1(0x1c),p1(0xa6),p1(0xb4),p1(0xc6) ;\ + .long p1(0xe8),p1(0xdd),p1(0x74),p1(0x1f),p1(0x4b),p1(0xbd),p1(0x8b),p1(0x8a) ;\ + .long p1(0x70),p1(0x3e),p1(0xb5),p1(0x66),p1(0x48),p1(0x03),p1(0xf6),p1(0x0e) ;\ + .long p1(0x61),p1(0x35),p1(0x57),p1(0xb9),p1(0x86),p1(0xc1),p1(0x1d),p1(0x9e) +#define sb_data7(p1) \ + .long p1(0xe1),p1(0xf8),p1(0x98),p1(0x11),p1(0x69),p1(0xd9),p1(0x8e),p1(0x94) ;\ + .long p1(0x9b),p1(0x1e),p1(0x87),p1(0xe9),p1(0xce),p1(0x55),p1(0x28),p1(0xdf) ;\ + .long p1(0x8c),p1(0xa1),p1(0x89),p1(0x0d),p1(0xbf),p1(0xe6),p1(0x42),p1(0x68) ;\ + .long p1(0x41),p1(0x99),p1(0x2d),p1(0x0f),p1(0xb0),p1(0x54),p1(0xbb),p1(0x16) + +// Inverse S-box data - 256 entries + +#define ib_data0(p1) \ + .long p1(0x52),p1(0x09),p1(0x6a),p1(0xd5),p1(0x30),p1(0x36),p1(0xa5),p1(0x38) ;\ + .long p1(0xbf),p1(0x40),p1(0xa3),p1(0x9e),p1(0x81),p1(0xf3),p1(0xd7),p1(0xfb) ;\ + .long p1(0x7c),p1(0xe3),p1(0x39),p1(0x82),p1(0x9b),p1(0x2f),p1(0xff),p1(0x87) ;\ + .long p1(0x34),p1(0x8e),p1(0x43),p1(0x44),p1(0xc4),p1(0xde),p1(0xe9),p1(0xcb) +#define ib_data1(p1) \ + .long p1(0x54),p1(0x7b),p1(0x94),p1(0x32),p1(0xa6),p1(0xc2),p1(0x23),p1(0x3d) ;\ + .long p1(0xee),p1(0x4c),p1(0x95),p1(0x0b),p1(0x42),p1(0xfa),p1(0xc3),p1(0x4e) ;\ + .long p1(0x08),p1(0x2e),p1(0xa1),p1(0x66),p1(0x28),p1(0xd9),p1(0x24),p1(0xb2) ;\ + .long p1(0x76),p1(0x5b),p1(0xa2),p1(0x49),p1(0x6d),p1(0x8b),p1(0xd1),p1(0x25) +#define ib_data2(p1) \ + .long p1(0x72),p1(0xf8),p1(0xf6),p1(0x64),p1(0x86),p1(0x68),p1(0x98),p1(0x16) ;\ + .long p1(0xd4),p1(0xa4),p1(0x5c),p1(0xcc),p1(0x5d),p1(0x65),p1(0xb6),p1(0x92) ;\ + .long p1(0x6c),p1(0x70),p1(0x48),p1(0x50),p1(0xfd),p1(0xed),p1(0xb9),p1(0xda) ;\ + .long p1(0x5e),p1(0x15),p1(0x46),p1(0x57),p1(0xa7),p1(0x8d),p1(0x9d),p1(0x84) +#define ib_data3(p1) \ + .long p1(0x90),p1(0xd8),p1(0xab),p1(0x00),p1(0x8c),p1(0xbc),p1(0xd3),p1(0x0a) ;\ + .long p1(0xf7),p1(0xe4),p1(0x58),p1(0x05),p1(0xb8),p1(0xb3),p1(0x45),p1(0x06) ;\ + .long p1(0xd0),p1(0x2c),p1(0x1e),p1(0x8f),p1(0xca),p1(0x3f),p1(0x0f),p1(0x02) ;\ + .long p1(0xc1),p1(0xaf),p1(0xbd),p1(0x03),p1(0x01),p1(0x13),p1(0x8a),p1(0x6b) +#define ib_data4(p1) \ + .long p1(0x3a),p1(0x91),p1(0x11),p1(0x41),p1(0x4f),p1(0x67),p1(0xdc),p1(0xea) ;\ + .long p1(0x97),p1(0xf2),p1(0xcf),p1(0xce),p1(0xf0),p1(0xb4),p1(0xe6),p1(0x73) ;\ + .long p1(0x96),p1(0xac),p1(0x74),p1(0x22),p1(0xe7),p1(0xad),p1(0x35),p1(0x85) ;\ + .long p1(0xe2),p1(0xf9),p1(0x37),p1(0xe8),p1(0x1c),p1(0x75),p1(0xdf),p1(0x6e) +#define ib_data5(p1) \ + .long p1(0x47),p1(0xf1),p1(0x1a),p1(0x71),p1(0x1d),p1(0x29),p1(0xc5),p1(0x89) ;\ + .long p1(0x6f),p1(0xb7),p1(0x62),p1(0x0e),p1(0xaa),p1(0x18),p1(0xbe),p1(0x1b) ;\ + .long p1(0xfc),p1(0x56),p1(0x3e),p1(0x4b),p1(0xc6),p1(0xd2),p1(0x79),p1(0x20) ;\ + .long p1(0x9a),p1(0xdb),p1(0xc0),p1(0xfe),p1(0x78),p1(0xcd),p1(0x5a),p1(0xf4) +#define ib_data6(p1) \ + .long p1(0x1f),p1(0xdd),p1(0xa8),p1(0x33),p1(0x88),p1(0x07),p1(0xc7),p1(0x31) ;\ + .long p1(0xb1),p1(0x12),p1(0x10),p1(0x59),p1(0x27),p1(0x80),p1(0xec),p1(0x5f) ;\ + .long p1(0x60),p1(0x51),p1(0x7f),p1(0xa9),p1(0x19),p1(0xb5),p1(0x4a),p1(0x0d) ;\ + .long p1(0x2d),p1(0xe5),p1(0x7a),p1(0x9f),p1(0x93),p1(0xc9),p1(0x9c),p1(0xef) +#define ib_data7(p1) \ + .long p1(0xa0),p1(0xe0),p1(0x3b),p1(0x4d),p1(0xae),p1(0x2a),p1(0xf5),p1(0xb0) ;\ + .long p1(0xc8),p1(0xeb),p1(0xbb),p1(0x3c),p1(0x83),p1(0x53),p1(0x99),p1(0x61) ;\ + .long p1(0x17),p1(0x2b),p1(0x04),p1(0x7e),p1(0xba),p1(0x77),p1(0xd6),p1(0x26) ;\ + .long p1(0xe1),p1(0x69),p1(0x14),p1(0x63),p1(0x55),p1(0x21),p1(0x0c),p1(0x7d) + +// The rcon_table (needed for the key schedule) +// +// Here is original Dr Brian Gladman's source code: +// _rcon_tab: +// %assign x 1 +// %rep 29 +// dd x +// %assign x f2(x) +// %endrep +// +// Here is precomputed output (it's more portable this way): + + .align ALIGN32BYTES +aes_rcon_tab: + .long 0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80 + .long 0x1b,0x36,0x6c,0xd8,0xab,0x4d,0x9a,0x2f + .long 0x5e,0xbc,0x63,0xc6,0x97,0x35,0x6a,0xd4 + .long 0xb3,0x7d,0xfa,0xef,0xc5 + +// The forward xor tables + + .align ALIGN32BYTES +aes_ft_tab: + sb_data0(u0) + sb_data1(u0) + sb_data2(u0) + sb_data3(u0) + sb_data4(u0) + sb_data5(u0) + sb_data6(u0) + sb_data7(u0) + + sb_data0(u1) + sb_data1(u1) + sb_data2(u1) + sb_data3(u1) + sb_data4(u1) + sb_data5(u1) + sb_data6(u1) + sb_data7(u1) + + sb_data0(u2) + sb_data1(u2) + sb_data2(u2) + sb_data3(u2) + sb_data4(u2) + sb_data5(u2) + sb_data6(u2) + sb_data7(u2) + + sb_data0(u3) + sb_data1(u3) + sb_data2(u3) + sb_data3(u3) + sb_data4(u3) + sb_data5(u3) + sb_data6(u3) + sb_data7(u3) + + .align ALIGN32BYTES +aes_fl_tab: + sb_data0(w0) + sb_data1(w0) + sb_data2(w0) + sb_data3(w0) + sb_data4(w0) + sb_data5(w0) + sb_data6(w0) + sb_data7(w0) + + sb_data0(w1) + sb_data1(w1) + sb_data2(w1) + sb_data3(w1) + sb_data4(w1) + sb_data5(w1) + sb_data6(w1) + sb_data7(w1) + + sb_data0(w2) + sb_data1(w2) + sb_data2(w2) + sb_data3(w2) + sb_data4(w2) + sb_data5(w2) + sb_data6(w2) + sb_data7(w2) + + sb_data0(w3) + sb_data1(w3) + sb_data2(w3) + sb_data3(w3) + sb_data4(w3) + sb_data5(w3) + sb_data6(w3) + sb_data7(w3) + +// The inverse xor tables + + .align ALIGN32BYTES +aes_it_tab: + ib_data0(v0) + ib_data1(v0) + ib_data2(v0) + ib_data3(v0) + ib_data4(v0) + ib_data5(v0) + ib_data6(v0) + ib_data7(v0) + + ib_data0(v1) + ib_data1(v1) + ib_data2(v1) + ib_data3(v1) + ib_data4(v1) + ib_data5(v1) + ib_data6(v1) + ib_data7(v1) + + ib_data0(v2) + ib_data1(v2) + ib_data2(v2) + ib_data3(v2) + ib_data4(v2) + ib_data5(v2) + ib_data6(v2) + ib_data7(v2) + + ib_data0(v3) + ib_data1(v3) + ib_data2(v3) + ib_data3(v3) + ib_data4(v3) + ib_data5(v3) + ib_data6(v3) + ib_data7(v3) + + .align ALIGN32BYTES +aes_il_tab: + ib_data0(w0) + ib_data1(w0) + ib_data2(w0) + ib_data3(w0) + ib_data4(w0) + ib_data5(w0) + ib_data6(w0) + ib_data7(w0) + + ib_data0(w1) + ib_data1(w1) + ib_data2(w1) + ib_data3(w1) + ib_data4(w1) + ib_data5(w1) + ib_data6(w1) + ib_data7(w1) + + ib_data0(w2) + ib_data1(w2) + ib_data2(w2) + ib_data3(w2) + ib_data4(w2) + ib_data5(w2) + ib_data6(w2) + ib_data7(w2) + + ib_data0(w3) + ib_data1(w3) + ib_data2(w3) + ib_data3(w3) + ib_data4(w3) + ib_data5(w3) + ib_data6(w3) + ib_data7(w3) + +// The inverse mix column tables + + .align ALIGN32BYTES +aes_im_tab: + im_data0(v0) + im_data1(v0) + im_data2(v0) + im_data3(v0) + im_data4(v0) + im_data5(v0) + im_data6(v0) + im_data7(v0) + + im_data0(v1) + im_data1(v1) + im_data2(v1) + im_data3(v1) + im_data4(v1) + im_data5(v1) + im_data6(v1) + im_data7(v1) + + im_data0(v2) + im_data1(v2) + im_data2(v2) + im_data3(v2) + im_data4(v2) + im_data5(v2) + im_data6(v2) + im_data7(v2) + + im_data0(v3) + im_data1(v3) + im_data2(v3) + im_data3(v3) + im_data4(v3) + im_data5(v3) + im_data6(v3) + im_data7(v3) --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/aes/aes.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,1415 @@ +// I retain copyright in this code but I encourage its free use provided +// that I don't carry any responsibility for the results. I am especially +// happy to see it used in free and open source software. If you do use +// it I would appreciate an acknowledgement of its origin in the code or +// the product that results and I would also appreciate knowing a little +// about the use to which it is being put. I am grateful to Frank Yellin +// for some ideas that are used in this implementation. +// +// Dr B. R. Gladman 6th April 2001. +// +// This is an implementation of the AES encryption algorithm (Rijndael) +// designed by Joan Daemen and Vincent Rijmen. This version is designed +// to provide both fixed and dynamic block and key lengths and can also +// run with either big or little endian internal byte order (see aes.h). +// It inputs block and key lengths in bytes with the legal values being +// 16, 24 and 32. + +/* + * Modified by Jari Ruusu, May 1 2001 + * - Fixed some compile warnings, code was ok but gcc warned anyway. + * - Changed basic types: byte -> unsigned char, word -> u_int32_t + * - Major name space cleanup: Names visible to outside now begin + * with "aes_" or "AES_". A lot of stuff moved from aes.h to aes.c + * - Removed C++ and DLL support as part of name space cleanup. + * - Eliminated unnecessary recomputation of tables. (actual bug fix) + * - Merged precomputed constant tables to aes.c file. + * - Removed data alignment restrictions for portability reasons. + * - Made block and key lengths accept bit count (128/192/256) + * as well byte count (16/24/32). + * - Removed all error checks. This change also eliminated the need + * to preinitialize the context struct to zero. + * - Removed some totally unused constants. + */ + +#include "crypto/aes.h" + +// CONFIGURATION OPTIONS (see also aes.h) +// +// 1. Define UNROLL for full loop unrolling in encryption and decryption. +// 2. Define PARTIAL_UNROLL to unroll two loops in encryption and decryption. +// 3. Define FIXED_TABLES for compiled rather than dynamic tables. +// 4. Define FF_TABLES to use tables for field multiplies and inverses. +// Do not enable this without understanding stack space requirements. +// 5. Define ARRAYS to use arrays to hold the local state block. If this +// is not defined, individually declared 32-bit words are used. +// 6. Define FAST_VARIABLE if a high speed variable block implementation +// is needed (essentially three separate fixed block size code sequences) +// 7. Define either ONE_TABLE or FOUR_TABLES for a fast table driven +// version using 1 table (2 kbytes of table space) or 4 tables (8 +// kbytes of table space) for higher speed. +// 8. Define either ONE_LR_TABLE or FOUR_LR_TABLES for a further speed +// increase by using tables for the last rounds but with more table +// space (2 or 8 kbytes extra). +// 9. If neither ONE_TABLE nor FOUR_TABLES is defined, a compact but +// slower version is provided. +// 10. If fast decryption key scheduling is needed define ONE_IM_TABLE +// or FOUR_IM_TABLES for higher speed (2 or 8 kbytes extra). + +#define UNROLL +//#define PARTIAL_UNROLL + +#define FIXED_TABLES +//#define FF_TABLES +//#define ARRAYS +#define FAST_VARIABLE + +//#define ONE_TABLE +#define FOUR_TABLES + +//#define ONE_LR_TABLE +#define FOUR_LR_TABLES + +//#define ONE_IM_TABLE +#define FOUR_IM_TABLES + +#if defined(UNROLL) && defined (PARTIAL_UNROLL) +#error both UNROLL and PARTIAL_UNROLL are defined +#endif + +#if defined(ONE_TABLE) && defined (FOUR_TABLES) +#error both ONE_TABLE and FOUR_TABLES are defined +#endif + +#if defined(ONE_LR_TABLE) && defined (FOUR_LR_TABLES) +#error both ONE_LR_TABLE and FOUR_LR_TABLES are defined +#endif + +#if defined(ONE_IM_TABLE) && defined (FOUR_IM_TABLES) +#error both ONE_IM_TABLE and FOUR_IM_TABLES are defined +#endif + +#if defined(AES_BLOCK_SIZE) && AES_BLOCK_SIZE != 16 && AES_BLOCK_SIZE != 24 && AES_BLOCK_SIZE != 32 +#error an illegal block size has been specified +#endif + +// upr(x,n): rotates bytes within words by n positions, moving bytes +// to higher index positions with wrap around into low positions +// ups(x,n): moves bytes by n positions to higher index positions in +// words but without wrap around +// bval(x,n): extracts a byte from a word + +#define upr(x,n) (((x) << 8 * (n)) | ((x) >> (32 - 8 * (n)))) +#define ups(x,n) ((x) << 8 * (n)) +#define bval(x,n) ((unsigned char)((x) >> 8 * (n))) +#define bytes2word(b0, b1, b2, b3) \ + ((u_int32_t)(b3) << 24 | (u_int32_t)(b2) << 16 | (u_int32_t)(b1) << 8 | (b0)) + + +/* little endian processor without data alignment restrictions: AES_LE_OK */ +/* original code: i386 */ +#if defined(i386) || defined(_I386) || defined(__i386__) || defined(__i386) +#define AES_LE_OK 1 +/* added (tested): alpha --jjo */ +#elif defined(__alpha__)|| defined (__alpha) +#define AES_LE_OK 1 +/* added (tested): ia64 --jjo */ +#elif defined(__ia64__)|| defined (__ia64) +#define AES_LE_OK 1 +#endif + +#ifdef AES_LE_OK +/* little endian processor without data alignment restrictions */ +#define word_in(x) *(u_int32_t*)(x) +#define const_word_in(x) *(const u_int32_t*)(x) +#define word_out(x,v) *(u_int32_t*)(x) = (v) +#define const_word_out(x,v) *(const u_int32_t*)(x) = (v) +#else +/* slower but generic big endian or with data alignment restrictions */ +/* some additional "const" touches to stop "gcc -Wcast-qual" complains --jjo */ +#define word_in(x) ((u_int32_t)(((unsigned char *)(x))[0])|((u_int32_t)(((unsigned char *)(x))[1])<<8)|((u_int32_t)(((unsigned char *)(x))[2])<<16)|((u_int32_t)(((unsigned char *)(x))[3])<<24)) +#define const_word_in(x) ((const u_int32_t)(((const unsigned char *)(x))[0])|((const u_int32_t)(((const unsigned char *)(x))[1])<<8)|((const u_int32_t)(((const unsigned char *)(x))[2])<<16)|((const u_int32_t)(((const unsigned char *)(x))[3])<<24)) +#define word_out(x,v) ((unsigned char *)(x))[0]=(v),((unsigned char *)(x))[1]=((v)>>8),((unsigned char *)(x))[2]=((v)>>16),((unsigned char *)(x))[3]=((v)>>24) +#define const_word_out(x,v) ((const unsigned char *)(x))[0]=(v),((const unsigned char *)(x))[1]=((v)>>8),((const unsigned char *)(x))[2]=((v)>>16),((const unsigned char *)(x))[3]=((v)>>24) +#endif + +// Disable at least some poor combinations of options + +#if !defined(ONE_TABLE) && !defined(FOUR_TABLES) +#define FIXED_TABLES +#undef UNROLL +#undef ONE_LR_TABLE +#undef FOUR_LR_TABLES +#undef ONE_IM_TABLE +#undef FOUR_IM_TABLES +#elif !defined(FOUR_TABLES) +#ifdef FOUR_LR_TABLES +#undef FOUR_LR_TABLES +#define ONE_LR_TABLE +#endif +#ifdef FOUR_IM_TABLES +#undef FOUR_IM_TABLES +#define ONE_IM_TABLE +#endif +#elif !defined(AES_BLOCK_SIZE) +#if defined(UNROLL) +#define PARTIAL_UNROLL +#undef UNROLL +#endif +#endif + +// the finite field modular polynomial and elements + +#define ff_poly 0x011b +#define ff_hi 0x80 + +// multiply four bytes in GF(2^8) by 'x' {02} in parallel + +#define m1 0x80808080 +#define m2 0x7f7f7f7f +#define m3 0x0000001b +#define FFmulX(x) ((((x) & m2) << 1) ^ ((((x) & m1) >> 7) * m3)) + +// The following defines provide alternative definitions of FFmulX that might +// give improved performance if a fast 32-bit multiply is not available. Note +// that a temporary variable u needs to be defined where FFmulX is used. + +// #define FFmulX(x) (u = (x) & m1, u |= (u >> 1), ((x) & m2) << 1) ^ ((u >> 3) | (u >> 6)) +// #define m4 0x1b1b1b1b +// #define FFmulX(x) (u = (x) & m1, ((x) & m2) << 1) ^ ((u - (u >> 7)) & m4) + +// perform column mix operation on four bytes in parallel + +#define fwd_mcol(x) (f2 = FFmulX(x), f2 ^ upr(x ^ f2,3) ^ upr(x,2) ^ upr(x,1)) + +#if defined(FIXED_TABLES) + +// the S-Box table + +static const unsigned char s_box[256] = +{ + 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, + 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76, + 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, + 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0, + 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, + 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15, + 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, + 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75, + 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, + 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84, + 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, + 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf, + 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, + 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8, + 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, + 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2, + 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, + 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73, + 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, + 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb, + 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, + 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79, + 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, + 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08, + 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, + 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a, + 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, + 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e, + 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, + 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf, + 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, + 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16 +}; + +// the inverse S-Box table + +static const unsigned char inv_s_box[256] = +{ + 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, + 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb, + 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, + 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb, + 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, + 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e, + 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, + 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25, + 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, + 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92, + 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, + 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84, + 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, + 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06, + 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, + 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b, + 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, + 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73, + 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, + 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e, + 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, + 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b, + 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, + 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4, + 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, + 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f, + 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, + 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef, + 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, + 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61, + 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, + 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d +}; + +#define w0(p) 0x000000##p + +// Number of elements required in this table for different +// block and key lengths is: +// +// Nk = 4 6 8 +// ---------- +// Nb = 4 | 10 8 7 +// 6 | 19 12 11 +// 8 | 29 19 14 +// +// this table can be a table of bytes if the key schedule +// code is adjusted accordingly + +static const u_int32_t rcon_tab[29] = +{ + w0(01), w0(02), w0(04), w0(08), + w0(10), w0(20), w0(40), w0(80), + w0(1b), w0(36), w0(6c), w0(d8), + w0(ab), w0(4d), w0(9a), w0(2f), + w0(5e), w0(bc), w0(63), w0(c6), + w0(97), w0(35), w0(6a), w0(d4), + w0(b3), w0(7d), w0(fa), w0(ef), + w0(c5) +}; + +#undef w0 + +#define r0(p,q,r,s) 0x##p##q##r##s +#define r1(p,q,r,s) 0x##q##r##s##p +#define r2(p,q,r,s) 0x##r##s##p##q +#define r3(p,q,r,s) 0x##s##p##q##r +#define w0(p) 0x000000##p +#define w1(p) 0x0000##p##00 +#define w2(p) 0x00##p##0000 +#define w3(p) 0x##p##000000 + +#if defined(FIXED_TABLES) && (defined(ONE_TABLE) || defined(FOUR_TABLES)) + +// data for forward tables (other than last round) + +#define f_table \ + r(a5,63,63,c6), r(84,7c,7c,f8), r(99,77,77,ee), r(8d,7b,7b,f6),\ + r(0d,f2,f2,ff), r(bd,6b,6b,d6), r(b1,6f,6f,de), r(54,c5,c5,91),\ + r(50,30,30,60), r(03,01,01,02), r(a9,67,67,ce), r(7d,2b,2b,56),\ + r(19,fe,fe,e7), r(62,d7,d7,b5), r(e6,ab,ab,4d), r(9a,76,76,ec),\ + r(45,ca,ca,8f), r(9d,82,82,1f), r(40,c9,c9,89), r(87,7d,7d,fa),\ + r(15,fa,fa,ef), r(eb,59,59,b2), r(c9,47,47,8e), r(0b,f0,f0,fb),\ + r(ec,ad,ad,41), r(67,d4,d4,b3), r(fd,a2,a2,5f), r(ea,af,af,45),\ + r(bf,9c,9c,23), r(f7,a4,a4,53), r(96,72,72,e4), r(5b,c0,c0,9b),\ + r(c2,b7,b7,75), r(1c,fd,fd,e1), r(ae,93,93,3d), r(6a,26,26,4c),\ + r(5a,36,36,6c), r(41,3f,3f,7e), r(02,f7,f7,f5), r(4f,cc,cc,83),\ + r(5c,34,34,68), r(f4,a5,a5,51), r(34,e5,e5,d1), r(08,f1,f1,f9),\ + r(93,71,71,e2), r(73,d8,d8,ab), r(53,31,31,62), r(3f,15,15,2a),\ + r(0c,04,04,08), r(52,c7,c7,95), r(65,23,23,46), r(5e,c3,c3,9d),\ + r(28,18,18,30), r(a1,96,96,37), r(0f,05,05,0a), r(b5,9a,9a,2f),\ + r(09,07,07,0e), r(36,12,12,24), r(9b,80,80,1b), r(3d,e2,e2,df),\ + r(26,eb,eb,cd), r(69,27,27,4e), r(cd,b2,b2,7f), r(9f,75,75,ea),\ + r(1b,09,09,12), r(9e,83,83,1d), r(74,2c,2c,58), r(2e,1a,1a,34),\ + r(2d,1b,1b,36), r(b2,6e,6e,dc), r(ee,5a,5a,b4), r(fb,a0,a0,5b),\ + r(f6,52,52,a4), r(4d,3b,3b,76), r(61,d6,d6,b7), r(ce,b3,b3,7d),\ + r(7b,29,29,52), r(3e,e3,e3,dd), r(71,2f,2f,5e), r(97,84,84,13),\ + r(f5,53,53,a6), r(68,d1,d1,b9), r(00,00,00,00), r(2c,ed,ed,c1),\ + r(60,20,20,40), r(1f,fc,fc,e3), r(c8,b1,b1,79), r(ed,5b,5b,b6),\ + r(be,6a,6a,d4), r(46,cb,cb,8d), r(d9,be,be,67), r(4b,39,39,72),\ + r(de,4a,4a,94), r(d4,4c,4c,98), r(e8,58,58,b0), r(4a,cf,cf,85),\ + r(6b,d0,d0,bb), r(2a,ef,ef,c5), r(e5,aa,aa,4f), r(16,fb,fb,ed),\ + r(c5,43,43,86), r(d7,4d,4d,9a), r(55,33,33,66), r(94,85,85,11),\ + r(cf,45,45,8a), r(10,f9,f9,e9), r(06,02,02,04), r(81,7f,7f,fe),\ + r(f0,50,50,a0), r(44,3c,3c,78), r(ba,9f,9f,25), r(e3,a8,a8,4b),\ + r(f3,51,51,a2), r(fe,a3,a3,5d), r(c0,40,40,80), r(8a,8f,8f,05),\ + r(ad,92,92,3f), r(bc,9d,9d,21), r(48,38,38,70), r(04,f5,f5,f1),\ + r(df,bc,bc,63), r(c1,b6,b6,77), r(75,da,da,af), r(63,21,21,42),\ + r(30,10,10,20), r(1a,ff,ff,e5), r(0e,f3,f3,fd), r(6d,d2,d2,bf),\ + r(4c,cd,cd,81), r(14,0c,0c,18), r(35,13,13,26), r(2f,ec,ec,c3),\ + r(e1,5f,5f,be), r(a2,97,97,35), r(cc,44,44,88), r(39,17,17,2e),\ + r(57,c4,c4,93), r(f2,a7,a7,55), r(82,7e,7e,fc), r(47,3d,3d,7a),\ + r(ac,64,64,c8), r(e7,5d,5d,ba), r(2b,19,19,32), r(95,73,73,e6),\ + r(a0,60,60,c0), r(98,81,81,19), r(d1,4f,4f,9e), r(7f,dc,dc,a3),\ + r(66,22,22,44), r(7e,2a,2a,54), r(ab,90,90,3b), r(83,88,88,0b),\ + r(ca,46,46,8c), r(29,ee,ee,c7), r(d3,b8,b8,6b), r(3c,14,14,28),\ + r(79,de,de,a7), r(e2,5e,5e,bc), r(1d,0b,0b,16), r(76,db,db,ad),\ + r(3b,e0,e0,db), r(56,32,32,64), r(4e,3a,3a,74), r(1e,0a,0a,14),\ + r(db,49,49,92), r(0a,06,06,0c), r(6c,24,24,48), r(e4,5c,5c,b8),\ + r(5d,c2,c2,9f), r(6e,d3,d3,bd), r(ef,ac,ac,43), r(a6,62,62,c4),\ + r(a8,91,91,39), r(a4,95,95,31), r(37,e4,e4,d3), r(8b,79,79,f2),\ + r(32,e7,e7,d5), r(43,c8,c8,8b), r(59,37,37,6e), r(b7,6d,6d,da),\ + r(8c,8d,8d,01), r(64,d5,d5,b1), r(d2,4e,4e,9c), r(e0,a9,a9,49),\ + r(b4,6c,6c,d8), r(fa,56,56,ac), r(07,f4,f4,f3), r(25,ea,ea,cf),\ + r(af,65,65,ca), r(8e,7a,7a,f4), r(e9,ae,ae,47), r(18,08,08,10),\ + r(d5,ba,ba,6f), r(88,78,78,f0), r(6f,25,25,4a), r(72,2e,2e,5c),\ + r(24,1c,1c,38), r(f1,a6,a6,57), r(c7,b4,b4,73), r(51,c6,c6,97),\ + r(23,e8,e8,cb), r(7c,dd,dd,a1), r(9c,74,74,e8), r(21,1f,1f,3e),\ + r(dd,4b,4b,96), r(dc,bd,bd,61), r(86,8b,8b,0d), r(85,8a,8a,0f),\ + r(90,70,70,e0), r(42,3e,3e,7c), r(c4,b5,b5,71), r(aa,66,66,cc),\ + r(d8,48,48,90), r(05,03,03,06), r(01,f6,f6,f7), r(12,0e,0e,1c),\ + r(a3,61,61,c2), r(5f,35,35,6a), r(f9,57,57,ae), r(d0,b9,b9,69),\ + r(91,86,86,17), r(58,c1,c1,99), r(27,1d,1d,3a), r(b9,9e,9e,27),\ + r(38,e1,e1,d9), r(13,f8,f8,eb), r(b3,98,98,2b), r(33,11,11,22),\ + r(bb,69,69,d2), r(70,d9,d9,a9), r(89,8e,8e,07), r(a7,94,94,33),\ + r(b6,9b,9b,2d), r(22,1e,1e,3c), r(92,87,87,15), r(20,e9,e9,c9),\ + r(49,ce,ce,87), r(ff,55,55,aa), r(78,28,28,50), r(7a,df,df,a5),\ + r(8f,8c,8c,03), r(f8,a1,a1,59), r(80,89,89,09), r(17,0d,0d,1a),\ + r(da,bf,bf,65), r(31,e6,e6,d7), r(c6,42,42,84), r(b8,68,68,d0),\ + r(c3,41,41,82), r(b0,99,99,29), r(77,2d,2d,5a), r(11,0f,0f,1e),\ + r(cb,b0,b0,7b), r(fc,54,54,a8), r(d6,bb,bb,6d), r(3a,16,16,2c) + +// data for inverse tables (other than last round) + +#define i_table \ + r(50,a7,f4,51), r(53,65,41,7e), r(c3,a4,17,1a), r(96,5e,27,3a),\ + r(cb,6b,ab,3b), r(f1,45,9d,1f), r(ab,58,fa,ac), r(93,03,e3,4b),\ + r(55,fa,30,20), r(f6,6d,76,ad), r(91,76,cc,88), r(25,4c,02,f5),\ + r(fc,d7,e5,4f), r(d7,cb,2a,c5), r(80,44,35,26), r(8f,a3,62,b5),\ + r(49,5a,b1,de), r(67,1b,ba,25), r(98,0e,ea,45), r(e1,c0,fe,5d),\ + r(02,75,2f,c3), r(12,f0,4c,81), r(a3,97,46,8d), r(c6,f9,d3,6b),\ + r(e7,5f,8f,03), r(95,9c,92,15), r(eb,7a,6d,bf), r(da,59,52,95),\ + r(2d,83,be,d4), r(d3,21,74,58), r(29,69,e0,49), r(44,c8,c9,8e),\ + r(6a,89,c2,75), r(78,79,8e,f4), r(6b,3e,58,99), r(dd,71,b9,27),\ + r(b6,4f,e1,be), r(17,ad,88,f0), r(66,ac,20,c9), r(b4,3a,ce,7d),\ + r(18,4a,df,63), r(82,31,1a,e5), r(60,33,51,97), r(45,7f,53,62),\ + r(e0,77,64,b1), r(84,ae,6b,bb), r(1c,a0,81,fe), r(94,2b,08,f9),\ + r(58,68,48,70), r(19,fd,45,8f), r(87,6c,de,94), r(b7,f8,7b,52),\ + r(23,d3,73,ab), r(e2,02,4b,72), r(57,8f,1f,e3), r(2a,ab,55,66),\ + r(07,28,eb,b2), r(03,c2,b5,2f), r(9a,7b,c5,86), r(a5,08,37,d3),\ + r(f2,87,28,30), r(b2,a5,bf,23), r(ba,6a,03,02), r(5c,82,16,ed),\ + r(2b,1c,cf,8a), r(92,b4,79,a7), r(f0,f2,07,f3), r(a1,e2,69,4e),\ + r(cd,f4,da,65), r(d5,be,05,06), r(1f,62,34,d1), r(8a,fe,a6,c4),\ + r(9d,53,2e,34), r(a0,55,f3,a2), r(32,e1,8a,05), r(75,eb,f6,a4),\ + r(39,ec,83,0b), r(aa,ef,60,40), r(06,9f,71,5e), r(51,10,6e,bd),\ + r(f9,8a,21,3e), r(3d,06,dd,96), r(ae,05,3e,dd), r(46,bd,e6,4d),\ + r(b5,8d,54,91), r(05,5d,c4,71), r(6f,d4,06,04), r(ff,15,50,60),\ + r(24,fb,98,19), r(97,e9,bd,d6), r(cc,43,40,89), r(77,9e,d9,67),\ + r(bd,42,e8,b0), r(88,8b,89,07), r(38,5b,19,e7), r(db,ee,c8,79),\ + r(47,0a,7c,a1), r(e9,0f,42,7c), r(c9,1e,84,f8), r(00,00,00,00),\ + r(83,86,80,09), r(48,ed,2b,32), r(ac,70,11,1e), r(4e,72,5a,6c),\ + r(fb,ff,0e,fd), r(56,38,85,0f), r(1e,d5,ae,3d), r(27,39,2d,36),\ + r(64,d9,0f,0a), r(21,a6,5c,68), r(d1,54,5b,9b), r(3a,2e,36,24),\ + r(b1,67,0a,0c), r(0f,e7,57,93), r(d2,96,ee,b4), r(9e,91,9b,1b),\ + r(4f,c5,c0,80), r(a2,20,dc,61), r(69,4b,77,5a), r(16,1a,12,1c),\ + r(0a,ba,93,e2), r(e5,2a,a0,c0), r(43,e0,22,3c), r(1d,17,1b,12),\ + r(0b,0d,09,0e), r(ad,c7,8b,f2), r(b9,a8,b6,2d), r(c8,a9,1e,14),\ + r(85,19,f1,57), r(4c,07,75,af), r(bb,dd,99,ee), r(fd,60,7f,a3),\ + r(9f,26,01,f7), r(bc,f5,72,5c), r(c5,3b,66,44), r(34,7e,fb,5b),\ + r(76,29,43,8b), r(dc,c6,23,cb), r(68,fc,ed,b6), r(63,f1,e4,b8),\ + r(ca,dc,31,d7), r(10,85,63,42), r(40,22,97,13), r(20,11,c6,84),\ + r(7d,24,4a,85), r(f8,3d,bb,d2), r(11,32,f9,ae), r(6d,a1,29,c7),\ + r(4b,2f,9e,1d), r(f3,30,b2,dc), r(ec,52,86,0d), r(d0,e3,c1,77),\ + r(6c,16,b3,2b), r(99,b9,70,a9), r(fa,48,94,11), r(22,64,e9,47),\ + r(c4,8c,fc,a8), r(1a,3f,f0,a0), r(d8,2c,7d,56), r(ef,90,33,22),\ + r(c7,4e,49,87), r(c1,d1,38,d9), r(fe,a2,ca,8c), r(36,0b,d4,98),\ + r(cf,81,f5,a6), r(28,de,7a,a5), r(26,8e,b7,da), r(a4,bf,ad,3f),\ + r(e4,9d,3a,2c), r(0d,92,78,50), r(9b,cc,5f,6a), r(62,46,7e,54),\ + r(c2,13,8d,f6), r(e8,b8,d8,90), r(5e,f7,39,2e), r(f5,af,c3,82),\ + r(be,80,5d,9f), r(7c,93,d0,69), r(a9,2d,d5,6f), r(b3,12,25,cf),\ + r(3b,99,ac,c8), r(a7,7d,18,10), r(6e,63,9c,e8), r(7b,bb,3b,db),\ + r(09,78,26,cd), r(f4,18,59,6e), r(01,b7,9a,ec), r(a8,9a,4f,83),\ + r(65,6e,95,e6), r(7e,e6,ff,aa), r(08,cf,bc,21), r(e6,e8,15,ef),\ + r(d9,9b,e7,ba), r(ce,36,6f,4a), r(d4,09,9f,ea), r(d6,7c,b0,29),\ + r(af,b2,a4,31), r(31,23,3f,2a), r(30,94,a5,c6), r(c0,66,a2,35),\ + r(37,bc,4e,74), r(a6,ca,82,fc), r(b0,d0,90,e0), r(15,d8,a7,33),\ + r(4a,98,04,f1), r(f7,da,ec,41), r(0e,50,cd,7f), r(2f,f6,91,17),\ + r(8d,d6,4d,76), r(4d,b0,ef,43), r(54,4d,aa,cc), r(df,04,96,e4),\ + r(e3,b5,d1,9e), r(1b,88,6a,4c), r(b8,1f,2c,c1), r(7f,51,65,46),\ + r(04,ea,5e,9d), r(5d,35,8c,01), r(73,74,87,fa), r(2e,41,0b,fb),\ + r(5a,1d,67,b3), r(52,d2,db,92), r(33,56,10,e9), r(13,47,d6,6d),\ + r(8c,61,d7,9a), r(7a,0c,a1,37), r(8e,14,f8,59), r(89,3c,13,eb),\ + r(ee,27,a9,ce), r(35,c9,61,b7), r(ed,e5,1c,e1), r(3c,b1,47,7a),\ + r(59,df,d2,9c), r(3f,73,f2,55), r(79,ce,14,18), r(bf,37,c7,73),\ + r(ea,cd,f7,53), r(5b,aa,fd,5f), r(14,6f,3d,df), r(86,db,44,78),\ + r(81,f3,af,ca), r(3e,c4,68,b9), r(2c,34,24,38), r(5f,40,a3,c2),\ + r(72,c3,1d,16), r(0c,25,e2,bc), r(8b,49,3c,28), r(41,95,0d,ff),\ + r(71,01,a8,39), r(de,b3,0c,08), r(9c,e4,b4,d8), r(90,c1,56,64),\ + r(61,84,cb,7b), r(70,b6,32,d5), r(74,5c,6c,48), r(42,57,b8,d0) + +// generate the required tables in the desired endian format + +#undef r +#define r r0 + +#if defined(ONE_TABLE) +static const u_int32_t ft_tab[256] = + { f_table }; +#elif defined(FOUR_TABLES) +static const u_int32_t ft_tab[4][256] = +{ { f_table }, +#undef r +#define r r1 + { f_table }, +#undef r +#define r r2 + { f_table }, +#undef r +#define r r3 + { f_table } +}; +#endif + +#undef r +#define r r0 +#if defined(ONE_TABLE) +static const u_int32_t it_tab[256] = + { i_table }; +#elif defined(FOUR_TABLES) +static const u_int32_t it_tab[4][256] = +{ { i_table }, +#undef r +#define r r1 + { i_table }, +#undef r +#define r r2 + { i_table }, +#undef r +#define r r3 + { i_table } +}; +#endif + +#endif + +#if defined(FIXED_TABLES) && (defined(ONE_LR_TABLE) || defined(FOUR_LR_TABLES)) + +// data for inverse tables (last round) + +#define li_table \ + w(52), w(09), w(6a), w(d5), w(30), w(36), w(a5), w(38),\ + w(bf), w(40), w(a3), w(9e), w(81), w(f3), w(d7), w(fb),\ + w(7c), w(e3), w(39), w(82), w(9b), w(2f), w(ff), w(87),\ + w(34), w(8e), w(43), w(44), w(c4), w(de), w(e9), w(cb),\ + w(54), w(7b), w(94), w(32), w(a6), w(c2), w(23), w(3d),\ + w(ee), w(4c), w(95), w(0b), w(42), w(fa), w(c3), w(4e),\ + w(08), w(2e), w(a1), w(66), w(28), w(d9), w(24), w(b2),\ + w(76), w(5b), w(a2), w(49), w(6d), w(8b), w(d1), w(25),\ + w(72), w(f8), w(f6), w(64), w(86), w(68), w(98), w(16),\ + w(d4), w(a4), w(5c), w(cc), w(5d), w(65), w(b6), w(92),\ + w(6c), w(70), w(48), w(50), w(fd), w(ed), w(b9), w(da),\ + w(5e), w(15), w(46), w(57), w(a7), w(8d), w(9d), w(84),\ + w(90), w(d8), w(ab), w(00), w(8c), w(bc), w(d3), w(0a),\ + w(f7), w(e4), w(58), w(05), w(b8), w(b3), w(45), w(06),\ + w(d0), w(2c), w(1e), w(8f), w(ca), w(3f), w(0f), w(02),\ + w(c1), w(af), w(bd), w(03), w(01), w(13), w(8a), w(6b),\ + w(3a), w(91), w(11), w(41), w(4f), w(67), w(dc), w(ea),\ + w(97), w(f2), w(cf), w(ce), w(f0), w(b4), w(e6), w(73),\ + w(96), w(ac), w(74), w(22), w(e7), w(ad), w(35), w(85),\ + w(e2), w(f9), w(37), w(e8), w(1c), w(75), w(df), w(6e),\ + w(47), w(f1), w(1a), w(71), w(1d), w(29), w(c5), w(89),\ + w(6f), w(b7), w(62), w(0e), w(aa), w(18), w(be), w(1b),\ + w(fc), w(56), w(3e), w(4b), w(c6), w(d2), w(79), w(20),\ + w(9a), w(db), w(c0), w(fe), w(78), w(cd), w(5a), w(f4),\ + w(1f), w(dd), w(a8), w(33), w(88), w(07), w(c7), w(31),\ + w(b1), w(12), w(10), w(59), w(27), w(80), w(ec), w(5f),\ + w(60), w(51), w(7f), w(a9), w(19), w(b5), w(4a), w(0d),\ + w(2d), w(e5), w(7a), w(9f), w(93), w(c9), w(9c), w(ef),\ + w(a0), w(e0), w(3b), w(4d), w(ae), w(2a), w(f5), w(b0),\ + w(c8), w(eb), w(bb), w(3c), w(83), w(53), w(99), w(61),\ + w(17), w(2b), w(04), w(7e), w(ba), w(77), w(d6), w(26),\ + w(e1), w(69), w(14), w(63), w(55), w(21), w(0c), w(7d), + +// generate the required tables in the desired endian format + +#undef r +#define r(p,q,r,s) w0(q) +#if defined(ONE_LR_TABLE) +static const u_int32_t fl_tab[256] = + { f_table }; +#elif defined(FOUR_LR_TABLES) +static const u_int32_t fl_tab[4][256] = +{ { f_table }, +#undef r +#define r(p,q,r,s) w1(q) + { f_table }, +#undef r +#define r(p,q,r,s) w2(q) + { f_table }, +#undef r +#define r(p,q,r,s) w3(q) + { f_table } +}; +#endif + +#undef w +#define w w0 +#if defined(ONE_LR_TABLE) +static const u_int32_t il_tab[256] = + { li_table }; +#elif defined(FOUR_LR_TABLES) +static const u_int32_t il_tab[4][256] = +{ { li_table }, +#undef w +#define w w1 + { li_table }, +#undef w +#define w w2 + { li_table }, +#undef w +#define w w3 + { li_table } +}; +#endif + +#endif + +#if defined(FIXED_TABLES) && (defined(ONE_IM_TABLE) || defined(FOUR_IM_TABLES)) + +#define m_table \ + r(00,00,00,00), r(0b,0d,09,0e), r(16,1a,12,1c), r(1d,17,1b,12),\ + r(2c,34,24,38), r(27,39,2d,36), r(3a,2e,36,24), r(31,23,3f,2a),\ + r(58,68,48,70), r(53,65,41,7e), r(4e,72,5a,6c), r(45,7f,53,62),\ + r(74,5c,6c,48), r(7f,51,65,46), r(62,46,7e,54), r(69,4b,77,5a),\ + r(b0,d0,90,e0), r(bb,dd,99,ee), r(a6,ca,82,fc), r(ad,c7,8b,f2),\ + r(9c,e4,b4,d8), r(97,e9,bd,d6), r(8a,fe,a6,c4), r(81,f3,af,ca),\ + r(e8,b8,d8,90), r(e3,b5,d1,9e), r(fe,a2,ca,8c), r(f5,af,c3,82),\ + r(c4,8c,fc,a8), r(cf,81,f5,a6), r(d2,96,ee,b4), r(d9,9b,e7,ba),\ + r(7b,bb,3b,db), r(70,b6,32,d5), r(6d,a1,29,c7), r(66,ac,20,c9),\ + r(57,8f,1f,e3), r(5c,82,16,ed), r(41,95,0d,ff), r(4a,98,04,f1),\ + r(23,d3,73,ab), r(28,de,7a,a5), r(35,c9,61,b7), r(3e,c4,68,b9),\ + r(0f,e7,57,93), r(04,ea,5e,9d), r(19,fd,45,8f), r(12,f0,4c,81),\ + r(cb,6b,ab,3b), r(c0,66,a2,35), r(dd,71,b9,27), r(d6,7c,b0,29),\ + r(e7,5f,8f,03), r(ec,52,86,0d), r(f1,45,9d,1f), r(fa,48,94,11),\ + r(93,03,e3,4b), r(98,0e,ea,45), r(85,19,f1,57), r(8e,14,f8,59),\ + r(bf,37,c7,73), r(b4,3a,ce,7d), r(a9,2d,d5,6f), r(a2,20,dc,61),\ + r(f6,6d,76,ad), r(fd,60,7f,a3), r(e0,77,64,b1), r(eb,7a,6d,bf),\ + r(da,59,52,95), r(d1,54,5b,9b), r(cc,43,40,89), r(c7,4e,49,87),\ + r(ae,05,3e,dd), r(a5,08,37,d3), r(b8,1f,2c,c1), r(b3,12,25,cf),\ + r(82,31,1a,e5), r(89,3c,13,eb), r(94,2b,08,f9), r(9f,26,01,f7),\ + r(46,bd,e6,4d), r(4d,b0,ef,43), r(50,a7,f4,51), r(5b,aa,fd,5f),\ + r(6a,89,c2,75), r(61,84,cb,7b), r(7c,93,d0,69), r(77,9e,d9,67),\ + r(1e,d5,ae,3d), r(15,d8,a7,33), r(08,cf,bc,21), r(03,c2,b5,2f),\ + r(32,e1,8a,05), r(39,ec,83,0b), r(24,fb,98,19), r(2f,f6,91,17),\ + r(8d,d6,4d,76), r(86,db,44,78), r(9b,cc,5f,6a), r(90,c1,56,64),\ + r(a1,e2,69,4e), r(aa,ef,60,40), r(b7,f8,7b,52), r(bc,f5,72,5c),\ + r(d5,be,05,06), r(de,b3,0c,08), r(c3,a4,17,1a), r(c8,a9,1e,14),\ + r(f9,8a,21,3e), r(f2,87,28,30), r(ef,90,33,22), r(e4,9d,3a,2c),\ + r(3d,06,dd,96), r(36,0b,d4,98), r(2b,1c,cf,8a), r(20,11,c6,84),\ + r(11,32,f9,ae), r(1a,3f,f0,a0), r(07,28,eb,b2), r(0c,25,e2,bc),\ + r(65,6e,95,e6), r(6e,63,9c,e8), r(73,74,87,fa), r(78,79,8e,f4),\ + r(49,5a,b1,de), r(42,57,b8,d0), r(5f,40,a3,c2), r(54,4d,aa,cc),\ + r(f7,da,ec,41), r(fc,d7,e5,4f), r(e1,c0,fe,5d), r(ea,cd,f7,53),\ + r(db,ee,c8,79), r(d0,e3,c1,77), r(cd,f4,da,65), r(c6,f9,d3,6b),\ + r(af,b2,a4,31), r(a4,bf,ad,3f), r(b9,a8,b6,2d), r(b2,a5,bf,23),\ + r(83,86,80,09), r(88,8b,89,07), r(95,9c,92,15), r(9e,91,9b,1b),\ + r(47,0a,7c,a1), r(4c,07,75,af), r(51,10,6e,bd), r(5a,1d,67,b3),\ + r(6b,3e,58,99), r(60,33,51,97), r(7d,24,4a,85), r(76,29,43,8b),\ + r(1f,62,34,d1), r(14,6f,3d,df), r(09,78,26,cd), r(02,75,2f,c3),\ + r(33,56,10,e9), r(38,5b,19,e7), r(25,4c,02,f5), r(2e,41,0b,fb),\ + r(8c,61,d7,9a), r(87,6c,de,94), r(9a,7b,c5,86), r(91,76,cc,88),\ + r(a0,55,f3,a2), r(ab,58,fa,ac), r(b6,4f,e1,be), r(bd,42,e8,b0),\ + r(d4,09,9f,ea), r(df,04,96,e4), r(c2,13,8d,f6), r(c9,1e,84,f8),\ + r(f8,3d,bb,d2), r(f3,30,b2,dc), r(ee,27,a9,ce), r(e5,2a,a0,c0),\ + r(3c,b1,47,7a), r(37,bc,4e,74), r(2a,ab,55,66), r(21,a6,5c,68),\ + r(10,85,63,42), r(1b,88,6a,4c), r(06,9f,71,5e), r(0d,92,78,50),\ + r(64,d9,0f,0a), r(6f,d4,06,04), r(72,c3,1d,16), r(79,ce,14,18),\ + r(48,ed,2b,32), r(43,e0,22,3c), r(5e,f7,39,2e), r(55,fa,30,20),\ + r(01,b7,9a,ec), r(0a,ba,93,e2), r(17,ad,88,f0), r(1c,a0,81,fe),\ + r(2d,83,be,d4), r(26,8e,b7,da), r(3b,99,ac,c8), r(30,94,a5,c6),\ + r(59,df,d2,9c), r(52,d2,db,92), r(4f,c5,c0,80), r(44,c8,c9,8e),\ + r(75,eb,f6,a4), r(7e,e6,ff,aa), r(63,f1,e4,b8), r(68,fc,ed,b6),\ + r(b1,67,0a,0c), r(ba,6a,03,02), r(a7,7d,18,10), r(ac,70,11,1e),\ + r(9d,53,2e,34), r(96,5e,27,3a), r(8b,49,3c,28), r(80,44,35,26),\ + r(e9,0f,42,7c), r(e2,02,4b,72), r(ff,15,50,60), r(f4,18,59,6e),\ + r(c5,3b,66,44), r(ce,36,6f,4a), r(d3,21,74,58), r(d8,2c,7d,56),\ + r(7a,0c,a1,37), r(71,01,a8,39), r(6c,16,b3,2b), r(67,1b,ba,25),\ + r(56,38,85,0f), r(5d,35,8c,01), r(40,22,97,13), r(4b,2f,9e,1d),\ + r(22,64,e9,47), r(29,69,e0,49), r(34,7e,fb,5b), r(3f,73,f2,55),\ + r(0e,50,cd,7f), r(05,5d,c4,71), r(18,4a,df,63), r(13,47,d6,6d),\ + r(ca,dc,31,d7), r(c1,d1,38,d9), r(dc,c6,23,cb), r(d7,cb,2a,c5),\ + r(e6,e8,15,ef), r(ed,e5,1c,e1), r(f0,f2,07,f3), r(fb,ff,0e,fd),\ + r(92,b4,79,a7), r(99,b9,70,a9), r(84,ae,6b,bb), r(8f,a3,62,b5),\ + r(be,80,5d,9f), r(b5,8d,54,91), r(a8,9a,4f,83), r(a3,97,46,8d) + +#undef r +#define r r0 + +#if defined(ONE_IM_TABLE) +static const u_int32_t im_tab[256] = + { m_table }; +#elif defined(FOUR_IM_TABLES) +static const u_int32_t im_tab[4][256] = +{ { m_table }, +#undef r +#define r r1 + { m_table }, +#undef r +#define r r2 + { m_table }, +#undef r +#define r r3 + { m_table } +}; +#endif + +#endif + +#else + +static int tab_gen = 0; + +static unsigned char s_box[256]; // the S box +static unsigned char inv_s_box[256]; // the inverse S box +static u_int32_t rcon_tab[AES_RC_LENGTH]; // table of round constants + +#if defined(ONE_TABLE) +static u_int32_t ft_tab[256]; +static u_int32_t it_tab[256]; +#elif defined(FOUR_TABLES) +static u_int32_t ft_tab[4][256]; +static u_int32_t it_tab[4][256]; +#endif + +#if defined(ONE_LR_TABLE) +static u_int32_t fl_tab[256]; +static u_int32_t il_tab[256]; +#elif defined(FOUR_LR_TABLES) +static u_int32_t fl_tab[4][256]; +static u_int32_t il_tab[4][256]; +#endif + +#if defined(ONE_IM_TABLE) +static u_int32_t im_tab[256]; +#elif defined(FOUR_IM_TABLES) +static u_int32_t im_tab[4][256]; +#endif + +// Generate the tables for the dynamic table option + +#if !defined(FF_TABLES) + +// It will generally be sensible to use tables to compute finite +// field multiplies and inverses but where memory is scarse this +// code might sometimes be better. + +// return 2 ^ (n - 1) where n is the bit number of the highest bit +// set in x with x in the range 1 < x < 0x00000200. This form is +// used so that locals within FFinv can be bytes rather than words + +static unsigned char hibit(const u_int32_t x) +{ unsigned char r = (unsigned char)((x >> 1) | (x >> 2)); + + r |= (r >> 2); + r |= (r >> 4); + return (r + 1) >> 1; +} + +// return the inverse of the finite field element x + +static unsigned char FFinv(const unsigned char x) +{ unsigned char p1 = x, p2 = 0x1b, n1 = hibit(x), n2 = 0x80, v1 = 1, v2 = 0; + + if(x < 2) return x; + + for(;;) + { + if(!n1) return v1; + + while(n2 >= n1) + { + n2 /= n1; p2 ^= p1 * n2; v2 ^= v1 * n2; n2 = hibit(p2); + } + + if(!n2) return v2; + + while(n1 >= n2) + { + n1 /= n2; p1 ^= p2 * n1; v1 ^= v2 * n1; n1 = hibit(p1); + } + } +} + +// define the finite field multiplies required for Rijndael + +#define FFmul02(x) ((((x) & 0x7f) << 1) ^ ((x) & 0x80 ? 0x1b : 0)) +#define FFmul03(x) ((x) ^ FFmul02(x)) +#define FFmul09(x) ((x) ^ FFmul02(FFmul02(FFmul02(x)))) +#define FFmul0b(x) ((x) ^ FFmul02((x) ^ FFmul02(FFmul02(x)))) +#define FFmul0d(x) ((x) ^ FFmul02(FFmul02((x) ^ FFmul02(x)))) +#define FFmul0e(x) FFmul02((x) ^ FFmul02((x) ^ FFmul02(x))) + +#else + +#define FFinv(x) ((x) ? pow[255 - log[x]]: 0) + +#define FFmul02(x) (x ? pow[log[x] + 0x19] : 0) +#define FFmul03(x) (x ? pow[log[x] + 0x01] : 0) +#define FFmul09(x) (x ? pow[log[x] + 0xc7] : 0) +#define FFmul0b(x) (x ? pow[log[x] + 0x68] : 0) +#define FFmul0d(x) (x ? pow[log[x] + 0xee] : 0) +#define FFmul0e(x) (x ? pow[log[x] + 0xdf] : 0) + +#endif + +// The forward and inverse affine transformations used in the S-box + +#define fwd_affine(x) \ + (w = (u_int32_t)x, w ^= (w<<1)^(w<<2)^(w<<3)^(w<<4), 0x63^(unsigned char)(w^(w>>8))) + +#define inv_affine(x) \ + (w = (u_int32_t)x, w = (w<<1)^(w<<3)^(w<<6), 0x05^(unsigned char)(w^(w>>8))) + +static void gen_tabs(void) +{ u_int32_t i, w; + +#if defined(FF_TABLES) + + unsigned char pow[512], log[256]; + + // log and power tables for GF(2^8) finite field with + // 0x011b as modular polynomial - the simplest primitive + // root is 0x03, used here to generate the tables + + i = 0; w = 1; + do + { + pow[i] = (unsigned char)w; + pow[i + 255] = (unsigned char)w; + log[w] = (unsigned char)i++; + w ^= (w << 1) ^ (w & ff_hi ? ff_poly : 0); + } + while (w != 1); + +#endif + + for(i = 0, w = 1; i < AES_RC_LENGTH; ++i) + { + rcon_tab[i] = bytes2word(w, 0, 0, 0); + w = (w << 1) ^ (w & ff_hi ? ff_poly : 0); + } + + for(i = 0; i < 256; ++i) + { unsigned char b; + + s_box[i] = b = fwd_affine(FFinv((unsigned char)i)); + + w = bytes2word(b, 0, 0, 0); +#if defined(ONE_LR_TABLE) + fl_tab[i] = w; +#elif defined(FOUR_LR_TABLES) + fl_tab[0][i] = w; + fl_tab[1][i] = upr(w,1); + fl_tab[2][i] = upr(w,2); + fl_tab[3][i] = upr(w,3); +#endif + w = bytes2word(FFmul02(b), b, b, FFmul03(b)); +#if defined(ONE_TABLE) + ft_tab[i] = w; +#elif defined(FOUR_TABLES) + ft_tab[0][i] = w; + ft_tab[1][i] = upr(w,1); + ft_tab[2][i] = upr(w,2); + ft_tab[3][i] = upr(w,3); +#endif + inv_s_box[i] = b = FFinv(inv_affine((unsigned char)i)); + + w = bytes2word(b, 0, 0, 0); +#if defined(ONE_LR_TABLE) + il_tab[i] = w; +#elif defined(FOUR_LR_TABLES) + il_tab[0][i] = w; + il_tab[1][i] = upr(w,1); + il_tab[2][i] = upr(w,2); + il_tab[3][i] = upr(w,3); +#endif + w = bytes2word(FFmul0e(b), FFmul09(b), FFmul0d(b), FFmul0b(b)); +#if defined(ONE_TABLE) + it_tab[i] = w; +#elif defined(FOUR_TABLES) + it_tab[0][i] = w; + it_tab[1][i] = upr(w,1); + it_tab[2][i] = upr(w,2); + it_tab[3][i] = upr(w,3); +#endif +#if defined(ONE_IM_TABLE) + im_tab[b] = w; +#elif defined(FOUR_IM_TABLES) + im_tab[0][b] = w; + im_tab[1][b] = upr(w,1); + im_tab[2][b] = upr(w,2); + im_tab[3][b] = upr(w,3); +#endif + + } +} + +#endif + +#define no_table(x,box,vf,rf,c) bytes2word( \ + box[bval(vf(x,0,c),rf(0,c))], \ + box[bval(vf(x,1,c),rf(1,c))], \ + box[bval(vf(x,2,c),rf(2,c))], \ + box[bval(vf(x,3,c),rf(3,c))]) + +#define one_table(x,op,tab,vf,rf,c) \ + ( tab[bval(vf(x,0,c),rf(0,c))] \ + ^ op(tab[bval(vf(x,1,c),rf(1,c))],1) \ + ^ op(tab[bval(vf(x,2,c),rf(2,c))],2) \ + ^ op(tab[bval(vf(x,3,c),rf(3,c))],3)) + +#define four_tables(x,tab,vf,rf,c) \ + ( tab[0][bval(vf(x,0,c),rf(0,c))] \ + ^ tab[1][bval(vf(x,1,c),rf(1,c))] \ + ^ tab[2][bval(vf(x,2,c),rf(2,c))] \ + ^ tab[3][bval(vf(x,3,c),rf(3,c))]) + +#define vf1(x,r,c) (x) +#define rf1(r,c) (r) +#define rf2(r,c) ((r-c)&3) + +#if defined(FOUR_LR_TABLES) +#define ls_box(x,c) four_tables(x,fl_tab,vf1,rf2,c) +#elif defined(ONE_LR_TABLE) +#define ls_box(x,c) one_table(x,upr,fl_tab,vf1,rf2,c) +#else +#define ls_box(x,c) no_table(x,s_box,vf1,rf2,c) +#endif + +#if defined(FOUR_IM_TABLES) +#define inv_mcol(x) four_tables(x,im_tab,vf1,rf1,0) +#elif defined(ONE_IM_TABLE) +#define inv_mcol(x) one_table(x,upr,im_tab,vf1,rf1,0) +#else +#define inv_mcol(x) \ + (f9 = (x),f2 = FFmulX(f9), f4 = FFmulX(f2), f8 = FFmulX(f4), f9 ^= f8, \ + f2 ^= f4 ^ f8 ^ upr(f2 ^ f9,3) ^ upr(f4 ^ f9,2) ^ upr(f9,1)) +#endif + +// Subroutine to set the block size (if variable) in bytes, legal +// values being 16, 24 and 32. + +#if defined(AES_BLOCK_SIZE) +#define nc (AES_BLOCK_SIZE / 4) +#else +#define nc (cx->aes_Ncol) + +void aes_set_blk(aes_context *cx, int n_bytes) +{ +#if !defined(FIXED_TABLES) + if(!tab_gen) { gen_tabs(); tab_gen = 1; } +#endif + + switch(n_bytes) { + case 32: /* bytes */ + case 256: /* bits */ + nc = 8; + break; + case 24: /* bytes */ + case 192: /* bits */ + nc = 6; + break; + case 16: /* bytes */ + case 128: /* bits */ + default: + nc = 4; + break; + } +} + +#endif + +// Initialise the key schedule from the user supplied key. The key +// length is now specified in bytes - 16, 24 or 32 as appropriate. +// This corresponds to bit lengths of 128, 192 and 256 bits, and +// to Nk values of 4, 6 and 8 respectively. + +#define mx(t,f) (*t++ = inv_mcol(*f),f++) +#define cp(t,f) *t++ = *f++ + +#if AES_BLOCK_SIZE == 16 +#define cpy(d,s) cp(d,s); cp(d,s); cp(d,s); cp(d,s) +#define mix(d,s) mx(d,s); mx(d,s); mx(d,s); mx(d,s) +#elif AES_BLOCK_SIZE == 24 +#define cpy(d,s) cp(d,s); cp(d,s); cp(d,s); cp(d,s); \ + cp(d,s); cp(d,s) +#define mix(d,s) mx(d,s); mx(d,s); mx(d,s); mx(d,s); \ + mx(d,s); mx(d,s) +#elif AES_BLOCK_SIZE == 32 +#define cpy(d,s) cp(d,s); cp(d,s); cp(d,s); cp(d,s); \ + cp(d,s); cp(d,s); cp(d,s); cp(d,s) +#define mix(d,s) mx(d,s); mx(d,s); mx(d,s); mx(d,s); \ + mx(d,s); mx(d,s); mx(d,s); mx(d,s) +#else + +#define cpy(d,s) \ +switch(nc) \ +{ case 8: cp(d,s); cp(d,s); \ + case 6: cp(d,s); cp(d,s); \ + case 4: cp(d,s); cp(d,s); \ + cp(d,s); cp(d,s); \ +} + +#define mix(d,s) \ +switch(nc) \ +{ case 8: mx(d,s); mx(d,s); \ + case 6: mx(d,s); mx(d,s); \ + case 4: mx(d,s); mx(d,s); \ + mx(d,s); mx(d,s); \ +} + +#endif + +void aes_set_key(aes_context *cx, const unsigned char in_key[], int n_bytes, const int f) +{ u_int32_t *kf, *kt, rci; + +#if !defined(FIXED_TABLES) + if(!tab_gen) { gen_tabs(); tab_gen = 1; } +#endif + + switch(n_bytes) { + case 32: /* bytes */ + case 256: /* bits */ + cx->aes_Nkey = 8; + break; + case 24: /* bytes */ + case 192: /* bits */ + cx->aes_Nkey = 6; + break; + case 16: /* bytes */ + case 128: /* bits */ + default: + cx->aes_Nkey = 4; + break; + } + + cx->aes_Nrnd = (cx->aes_Nkey > nc ? cx->aes_Nkey : nc) + 6; + + cx->aes_e_key[0] = const_word_in(in_key ); + cx->aes_e_key[1] = const_word_in(in_key + 4); + cx->aes_e_key[2] = const_word_in(in_key + 8); + cx->aes_e_key[3] = const_word_in(in_key + 12); + + kf = cx->aes_e_key; + kt = kf + nc * (cx->aes_Nrnd + 1) - cx->aes_Nkey; + rci = 0; + + switch(cx->aes_Nkey) + { + case 4: do + { kf[4] = kf[0] ^ ls_box(kf[3],3) ^ rcon_tab[rci++]; + kf[5] = kf[1] ^ kf[4]; + kf[6] = kf[2] ^ kf[5]; + kf[7] = kf[3] ^ kf[6]; + kf += 4; + } + while(kf < kt); + break; + + case 6: cx->aes_e_key[4] = const_word_in(in_key + 16); + cx->aes_e_key[5] = const_word_in(in_key + 20); + do + { kf[ 6] = kf[0] ^ ls_box(kf[5],3) ^ rcon_tab[rci++]; + kf[ 7] = kf[1] ^ kf[ 6]; + kf[ 8] = kf[2] ^ kf[ 7]; + kf[ 9] = kf[3] ^ kf[ 8]; + kf[10] = kf[4] ^ kf[ 9]; + kf[11] = kf[5] ^ kf[10]; + kf += 6; + } + while(kf < kt); + break; + + case 8: cx->aes_e_key[4] = const_word_in(in_key + 16); + cx->aes_e_key[5] = const_word_in(in_key + 20); + cx->aes_e_key[6] = const_word_in(in_key + 24); + cx->aes_e_key[7] = const_word_in(in_key + 28); + do + { kf[ 8] = kf[0] ^ ls_box(kf[7],3) ^ rcon_tab[rci++]; + kf[ 9] = kf[1] ^ kf[ 8]; + kf[10] = kf[2] ^ kf[ 9]; + kf[11] = kf[3] ^ kf[10]; + kf[12] = kf[4] ^ ls_box(kf[11],0); + kf[13] = kf[5] ^ kf[12]; + kf[14] = kf[6] ^ kf[13]; + kf[15] = kf[7] ^ kf[14]; + kf += 8; + } + while (kf < kt); + break; + } + + if(!f) + { u_int32_t i; + + kt = cx->aes_d_key + nc * cx->aes_Nrnd; + kf = cx->aes_e_key; + + cpy(kt, kf); kt -= 2 * nc; + + for(i = 1; i < cx->aes_Nrnd; ++i) + { +#if defined(ONE_TABLE) || defined(FOUR_TABLES) +#if !defined(ONE_IM_TABLE) && !defined(FOUR_IM_TABLES) + u_int32_t f2, f4, f8, f9; +#endif + mix(kt, kf); +#else + cpy(kt, kf); +#endif + kt -= 2 * nc; + } + + cpy(kt, kf); + } +} + +// y = output word, x = input word, r = row, c = column +// for r = 0, 1, 2 and 3 = column accessed for row r + +#if defined(ARRAYS) +#define s(x,c) x[c] +#else +#define s(x,c) x##c +#endif + +// I am grateful to Frank Yellin for the following constructions +// which, given the column (c) of the output state variable that +// is being computed, return the input state variables which are +// needed for each row (r) of the state + +// For the fixed block size options, compilers reduce these two +// expressions to fixed variable references. For variable block +// size code conditional clauses will sometimes be returned + +#define unused 77 // Sunset Strip + +#define fwd_var(x,r,c) \ + ( r==0 ? \ + ( c==0 ? s(x,0) \ + : c==1 ? s(x,1) \ + : c==2 ? s(x,2) \ + : c==3 ? s(x,3) \ + : c==4 ? s(x,4) \ + : c==5 ? s(x,5) \ + : c==6 ? s(x,6) \ + : s(x,7)) \ + : r==1 ? \ + ( c==0 ? s(x,1) \ + : c==1 ? s(x,2) \ + : c==2 ? s(x,3) \ + : c==3 ? nc==4 ? s(x,0) : s(x,4) \ + : c==4 ? s(x,5) \ + : c==5 ? nc==8 ? s(x,6) : s(x,0) \ + : c==6 ? s(x,7) \ + : s(x,0)) \ + : r==2 ? \ + ( c==0 ? nc==8 ? s(x,3) : s(x,2) \ + : c==1 ? nc==8 ? s(x,4) : s(x,3) \ + : c==2 ? nc==4 ? s(x,0) : nc==8 ? s(x,5) : s(x,4) \ + : c==3 ? nc==4 ? s(x,1) : nc==8 ? s(x,6) : s(x,5) \ + : c==4 ? nc==8 ? s(x,7) : s(x,0) \ + : c==5 ? nc==8 ? s(x,0) : s(x,1) \ + : c==6 ? s(x,1) \ + : s(x,2)) \ + : \ + ( c==0 ? nc==8 ? s(x,4) : s(x,3) \ + : c==1 ? nc==4 ? s(x,0) : nc==8 ? s(x,5) : s(x,4) \ + : c==2 ? nc==4 ? s(x,1) : nc==8 ? s(x,6) : s(x,5) \ + : c==3 ? nc==4 ? s(x,2) : nc==8 ? s(x,7) : s(x,0) \ + : c==4 ? nc==8 ? s(x,0) : s(x,1) \ + : c==5 ? nc==8 ? s(x,1) : s(x,2) \ + : c==6 ? s(x,2) \ + : s(x,3))) + +#define inv_var(x,r,c) \ + ( r==0 ? \ + ( c==0 ? s(x,0) \ + : c==1 ? s(x,1) \ + : c==2 ? s(x,2) \ + : c==3 ? s(x,3) \ + : c==4 ? s(x,4) \ + : c==5 ? s(x,5) \ + : c==6 ? s(x,6) \ + : s(x,7)) \ + : r==1 ? \ + ( c==0 ? nc==4 ? s(x,3) : nc==8 ? s(x,7) : s(x,5) \ + : c==1 ? s(x,0) \ + : c==2 ? s(x,1) \ + : c==3 ? s(x,2) \ + : c==4 ? s(x,3) \ + : c==5 ? s(x,4) \ + : c==6 ? s(x,5) \ + : s(x,6)) \ + : r==2 ? \ + ( c==0 ? nc==4 ? s(x,2) : nc==8 ? s(x,5) : s(x,4) \ + : c==1 ? nc==4 ? s(x,3) : nc==8 ? s(x,6) : s(x,5) \ + : c==2 ? nc==8 ? s(x,7) : s(x,0) \ + : c==3 ? nc==8 ? s(x,0) : s(x,1) \ + : c==4 ? nc==8 ? s(x,1) : s(x,2) \ + : c==5 ? nc==8 ? s(x,2) : s(x,3) \ + : c==6 ? s(x,3) \ + : s(x,4)) \ + : \ + ( c==0 ? nc==4 ? s(x,1) : nc==8 ? s(x,4) : s(x,3) \ + : c==1 ? nc==4 ? s(x,2) : nc==8 ? s(x,5) : s(x,4) \ + : c==2 ? nc==4 ? s(x,3) : nc==8 ? s(x,6) : s(x,5) \ + : c==3 ? nc==8 ? s(x,7) : s(x,0) \ + : c==4 ? nc==8 ? s(x,0) : s(x,1) \ + : c==5 ? nc==8 ? s(x,1) : s(x,2) \ + : c==6 ? s(x,2) \ + : s(x,3))) + +#define si(y,x,k,c) s(y,c) = const_word_in(x + 4 * c) ^ k[c] +#define so(y,x,c) word_out(y + 4 * c, s(x,c)) + +#if defined(FOUR_TABLES) +#define fwd_rnd(y,x,k,c) s(y,c)= (k)[c] ^ four_tables(x,ft_tab,fwd_var,rf1,c) +#define inv_rnd(y,x,k,c) s(y,c)= (k)[c] ^ four_tables(x,it_tab,inv_var,rf1,c) +#elif defined(ONE_TABLE) +#define fwd_rnd(y,x,k,c) s(y,c)= (k)[c] ^ one_table(x,upr,ft_tab,fwd_var,rf1,c) +#define inv_rnd(y,x,k,c) s(y,c)= (k)[c] ^ one_table(x,upr,it_tab,inv_var,rf1,c) +#else +#define fwd_rnd(y,x,k,c) s(y,c) = fwd_mcol(no_table(x,s_box,fwd_var,rf1,c)) ^ (k)[c] +#define inv_rnd(y,x,k,c) s(y,c) = inv_mcol(no_table(x,inv_s_box,inv_var,rf1,c) ^ (k)[c]) +#endif + +#if defined(FOUR_LR_TABLES) +#define fwd_lrnd(y,x,k,c) s(y,c)= (k)[c] ^ four_tables(x,fl_tab,fwd_var,rf1,c) +#define inv_lrnd(y,x,k,c) s(y,c)= (k)[c] ^ four_tables(x,il_tab,inv_var,rf1,c) +#elif defined(ONE_LR_TABLE) +#define fwd_lrnd(y,x,k,c) s(y,c)= (k)[c] ^ one_table(x,ups,fl_tab,fwd_var,rf1,c) +#define inv_lrnd(y,x,k,c) s(y,c)= (k)[c] ^ one_table(x,ups,il_tab,inv_var,rf1,c) +#else +#define fwd_lrnd(y,x,k,c) s(y,c) = no_table(x,s_box,fwd_var,rf1,c) ^ (k)[c] +#define inv_lrnd(y,x,k,c) s(y,c) = no_table(x,inv_s_box,inv_var,rf1,c) ^ (k)[c] +#endif + +#if AES_BLOCK_SIZE == 16 + +#if defined(ARRAYS) +#define locals(y,x) x[4],y[4] +#else +#define locals(y,x) x##0,x##1,x##2,x##3,y##0,y##1,y##2,y##3 +// the following defines prevent the compiler requiring the declaration +// of generated but unused variables in the fwd_var and inv_var macros +#define b04 unused +#define b05 unused +#define b06 unused +#define b07 unused +#define b14 unused +#define b15 unused +#define b16 unused +#define b17 unused +#endif +#define l_copy(y, x) s(y,0) = s(x,0); s(y,1) = s(x,1); \ + s(y,2) = s(x,2); s(y,3) = s(x,3); +#define state_in(y,x,k) si(y,x,k,0); si(y,x,k,1); si(y,x,k,2); si(y,x,k,3) +#define state_out(y,x) so(y,x,0); so(y,x,1); so(y,x,2); so(y,x,3) +#define round(rm,y,x,k) rm(y,x,k,0); rm(y,x,k,1); rm(y,x,k,2); rm(y,x,k,3) + +#elif AES_BLOCK_SIZE == 24 + +#if defined(ARRAYS) +#define locals(y,x) x[6],y[6] +#else +#define locals(y,x) x##0,x##1,x##2,x##3,x##4,x##5, \ + y##0,y##1,y##2,y##3,y##4,y##5 +#define b06 unused +#define b07 unused +#define b16 unused +#define b17 unused +#endif +#define l_copy(y, x) s(y,0) = s(x,0); s(y,1) = s(x,1); \ + s(y,2) = s(x,2); s(y,3) = s(x,3); \ + s(y,4) = s(x,4); s(y,5) = s(x,5); +#define state_in(y,x,k) si(y,x,k,0); si(y,x,k,1); si(y,x,k,2); \ + si(y,x,k,3); si(y,x,k,4); si(y,x,k,5) +#define state_out(y,x) so(y,x,0); so(y,x,1); so(y,x,2); \ + so(y,x,3); so(y,x,4); so(y,x,5) +#define round(rm,y,x,k) rm(y,x,k,0); rm(y,x,k,1); rm(y,x,k,2); \ + rm(y,x,k,3); rm(y,x,k,4); rm(y,x,k,5) +#else + +#if defined(ARRAYS) +#define locals(y,x) x[8],y[8] +#else +#define locals(y,x) x##0,x##1,x##2,x##3,x##4,x##5,x##6,x##7, \ + y##0,y##1,y##2,y##3,y##4,y##5,y##6,y##7 +#endif +#define l_copy(y, x) s(y,0) = s(x,0); s(y,1) = s(x,1); \ + s(y,2) = s(x,2); s(y,3) = s(x,3); \ + s(y,4) = s(x,4); s(y,5) = s(x,5); \ + s(y,6) = s(x,6); s(y,7) = s(x,7); + +#if AES_BLOCK_SIZE == 32 + +#define state_in(y,x,k) si(y,x,k,0); si(y,x,k,1); si(y,x,k,2); si(y,x,k,3); \ + si(y,x,k,4); si(y,x,k,5); si(y,x,k,6); si(y,x,k,7) +#define state_out(y,x) so(y,x,0); so(y,x,1); so(y,x,2); so(y,x,3); \ + so(y,x,4); so(y,x,5); so(y,x,6); so(y,x,7) +#define round(rm,y,x,k) rm(y,x,k,0); rm(y,x,k,1); rm(y,x,k,2); rm(y,x,k,3); \ + rm(y,x,k,4); rm(y,x,k,5); rm(y,x,k,6); rm(y,x,k,7) +#else + +#define state_in(y,x,k) \ +switch(nc) \ +{ case 8: si(y,x,k,7); si(y,x,k,6); \ + case 6: si(y,x,k,5); si(y,x,k,4); \ + case 4: si(y,x,k,3); si(y,x,k,2); \ + si(y,x,k,1); si(y,x,k,0); \ +} + +#define state_out(y,x) \ +switch(nc) \ +{ case 8: so(y,x,7); so(y,x,6); \ + case 6: so(y,x,5); so(y,x,4); \ + case 4: so(y,x,3); so(y,x,2); \ + so(y,x,1); so(y,x,0); \ +} + +#if defined(FAST_VARIABLE) + +#define round(rm,y,x,k) \ +switch(nc) \ +{ case 8: rm(y,x,k,7); rm(y,x,k,6); \ + rm(y,x,k,5); rm(y,x,k,4); \ + rm(y,x,k,3); rm(y,x,k,2); \ + rm(y,x,k,1); rm(y,x,k,0); \ + break; \ + case 6: rm(y,x,k,5); rm(y,x,k,4); \ + rm(y,x,k,3); rm(y,x,k,2); \ + rm(y,x,k,1); rm(y,x,k,0); \ + break; \ + case 4: rm(y,x,k,3); rm(y,x,k,2); \ + rm(y,x,k,1); rm(y,x,k,0); \ + break; \ +} +#else + +#define round(rm,y,x,k) \ +switch(nc) \ +{ case 8: rm(y,x,k,7); rm(y,x,k,6); \ + case 6: rm(y,x,k,5); rm(y,x,k,4); \ + case 4: rm(y,x,k,3); rm(y,x,k,2); \ + rm(y,x,k,1); rm(y,x,k,0); \ +} + +#endif + +#endif +#endif + +void aes_encrypt(const aes_context *cx, const unsigned char in_blk[], unsigned char out_blk[]) +{ u_int32_t locals(b0, b1); + const u_int32_t *kp = cx->aes_e_key; + +#if !defined(ONE_TABLE) && !defined(FOUR_TABLES) + u_int32_t f2; +#endif + + state_in(b0, in_blk, kp); kp += nc; + +#if defined(UNROLL) + + switch(cx->aes_Nrnd) + { + case 14: round(fwd_rnd, b1, b0, kp ); + round(fwd_rnd, b0, b1, kp + nc ); kp += 2 * nc; + case 12: round(fwd_rnd, b1, b0, kp ); + round(fwd_rnd, b0, b1, kp + nc ); kp += 2 * nc; + case 10: round(fwd_rnd, b1, b0, kp ); + round(fwd_rnd, b0, b1, kp + nc); + round(fwd_rnd, b1, b0, kp + 2 * nc); + round(fwd_rnd, b0, b1, kp + 3 * nc); + round(fwd_rnd, b1, b0, kp + 4 * nc); + round(fwd_rnd, b0, b1, kp + 5 * nc); + round(fwd_rnd, b1, b0, kp + 6 * nc); + round(fwd_rnd, b0, b1, kp + 7 * nc); + round(fwd_rnd, b1, b0, kp + 8 * nc); + round(fwd_lrnd, b0, b1, kp + 9 * nc); + } + +#elif defined(PARTIAL_UNROLL) + { u_int32_t rnd; + + for(rnd = 0; rnd < (cx->aes_Nrnd >> 1) - 1; ++rnd) + { + round(fwd_rnd, b1, b0, kp); + round(fwd_rnd, b0, b1, kp + nc); kp += 2 * nc; + } + + round(fwd_rnd, b1, b0, kp); + round(fwd_lrnd, b0, b1, kp + nc); + } +#else + { u_int32_t rnd; + + for(rnd = 0; rnd < cx->aes_Nrnd - 1; ++rnd) + { + round(fwd_rnd, b1, b0, kp); + l_copy(b0, b1); kp += nc; + } + + round(fwd_lrnd, b0, b1, kp); + } +#endif + + state_out(out_blk, b0); +} + +void aes_decrypt(const aes_context *cx, const unsigned char in_blk[], unsigned char out_blk[]) +{ u_int32_t locals(b0, b1); + const u_int32_t *kp = cx->aes_d_key; + +#if !defined(ONE_TABLE) && !defined(FOUR_TABLES) + u_int32_t f2, f4, f8, f9; +#endif + + state_in(b0, in_blk, kp); kp += nc; + +#if defined(UNROLL) + + switch(cx->aes_Nrnd) + { + case 14: round(inv_rnd, b1, b0, kp ); + round(inv_rnd, b0, b1, kp + nc ); kp += 2 * nc; + case 12: round(inv_rnd, b1, b0, kp ); + round(inv_rnd, b0, b1, kp + nc ); kp += 2 * nc; + case 10: round(inv_rnd, b1, b0, kp ); + round(inv_rnd, b0, b1, kp + nc); + round(inv_rnd, b1, b0, kp + 2 * nc); + round(inv_rnd, b0, b1, kp + 3 * nc); + round(inv_rnd, b1, b0, kp + 4 * nc); + round(inv_rnd, b0, b1, kp + 5 * nc); + round(inv_rnd, b1, b0, kp + 6 * nc); + round(inv_rnd, b0, b1, kp + 7 * nc); + round(inv_rnd, b1, b0, kp + 8 * nc); + round(inv_lrnd, b0, b1, kp + 9 * nc); + } + +#elif defined(PARTIAL_UNROLL) + { u_int32_t rnd; + + for(rnd = 0; rnd < (cx->aes_Nrnd >> 1) - 1; ++rnd) + { + round(inv_rnd, b1, b0, kp); + round(inv_rnd, b0, b1, kp + nc); kp += 2 * nc; + } + + round(inv_rnd, b1, b0, kp); + round(inv_lrnd, b0, b1, kp + nc); + } +#else + { u_int32_t rnd; + + for(rnd = 0; rnd < cx->aes_Nrnd - 1; ++rnd) + { + round(inv_rnd, b1, b0, kp); + l_copy(b0, b1); kp += nc; + } + + round(inv_lrnd, b0, b1, kp); + } +#endif + + state_out(out_blk, b0); +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/aes/aes_cbc.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,46 @@ +/* +// I retain copyright in this code but I encourage its free use provided +// that I don't carry any responsibility for the results. I am especially +// happy to see it used in free and open source software. If you do use +// it I would appreciate an acknowledgement of its origin in the code or +// the product that results and I would also appreciate knowing a little +// about the use to which it is being put. I am grateful to Frank Yellin +// for some ideas that are used in this implementation. +// +// Dr B. R. Gladman 6th April 2001. +// +// This is an implementation of the AES encryption algorithm (Rijndael) +// designed by Joan Daemen and Vincent Rijmen. This version is designed +// to provide both fixed and dynamic block and key lengths and can also +// run with either big or little endian internal byte order (see aes.h). +// It inputs block and key lengths in bytes with the legal values being +// 16, 24 and 32. +* +*/ + +#ifdef __KERNEL__ +#include +#else +#include +#endif +#include "crypto/aes_cbc.h" +#include "crypto/cbc_generic.h" + +/* returns bool success */ +int AES_set_key(aes_context *aes_ctx, const u_int8_t *key, int keysize) { + aes_set_key(aes_ctx, key, keysize, 0); + return 1; +} +CBC_IMPL_BLK16(AES_cbc_encrypt, aes_context, u_int8_t *, aes_encrypt, aes_decrypt); + + +/* + * $Log: aes_cbc.c,v $ + * Revision 1.2 2004/07/10 07:48:40 mcr + * Moved from linux/crypto/ciphers/aes/aes_cbc.c,v + * + * Revision 1.1 2004/04/06 02:48:12 mcr + * pullup of AES cipher from alg-branch. + * + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/aes/aes_xcbc_mac.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,67 @@ +#ifdef __KERNEL__ +#include +#include +#define DEBUG(x) +#else +#include +#include +#define DEBUG(x) x +#endif + +#include "crypto/aes.h" +#include "crypto/aes_xcbc_mac.h" + +int AES_xcbc_mac_set_key(aes_context_mac *ctxm, const u_int8_t *key, int keylen) +{ + int ret=1; + aes_block kn[3] = { + { 0x01010101, 0x01010101, 0x01010101, 0x01010101 }, + { 0x02020202, 0x02020202, 0x02020202, 0x02020202 }, + { 0x03030303, 0x03030303, 0x03030303, 0x03030303 }, + }; + aes_set_key(&ctxm->ctx_k1, key, keylen, 0); + aes_encrypt(&ctxm->ctx_k1, (u_int8_t *) kn[0], (u_int8_t *) kn[0]); + aes_encrypt(&ctxm->ctx_k1, (u_int8_t *) kn[1], (u_int8_t *) ctxm->k2); + aes_encrypt(&ctxm->ctx_k1, (u_int8_t *) kn[2], (u_int8_t *) ctxm->k3); + aes_set_key(&ctxm->ctx_k1, (u_int8_t *) kn[0], 16, 0); + return ret; +} +static void do_pad_xor(u_int8_t *out, const u_int8_t *in, int len) { + int pos=0; + for (pos=1; pos <= 16; pos++, in++, out++) { + if (pos <= len) + *out ^= *in; + if (pos > len) { + DEBUG(printf("put 0x80 at pos=%d\n", pos)); + *out ^= 0x80; + break; + } + } +} +static void xor_block(aes_block res, const aes_block op) { + res[0] ^= op[0]; + res[1] ^= op[1]; + res[2] ^= op[2]; + res[3] ^= op[3]; +} +int AES_xcbc_mac_hash(const aes_context_mac *ctxm, const u_int8_t * in, int ilen, u_int8_t hash[16]) { + int ret=ilen; + u_int32_t out[4] = { 0, 0, 0, 0 }; + for (; ilen > 16 ; ilen-=16) { + xor_block(out, (const u_int32_t*) &in[0]); + aes_encrypt(&ctxm->ctx_k1, in, (u_int8_t *)&out[0]); + in+=16; + } + do_pad_xor((u_int8_t *)&out, in, ilen); + if (ilen==16) { + DEBUG(printf("using k3\n")); + xor_block(out, ctxm->k3); + } + else + { + DEBUG(printf("using k2\n")); + xor_block(out, ctxm->k2); + } + aes_encrypt(&ctxm->ctx_k1, (u_int8_t *)out, hash); + return ret; +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/aes/ipsec_alg_aes.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,296 @@ +/* + * ipsec_alg AES cipher stubs + * + * Author: JuanJo Ciarlante + * + * ipsec_alg_aes.c,v 1.1.2.1 2003/11/21 18:12:23 jjo Exp + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * Fixes by: + * PK: Pawel Krawczyk + * Fixes list: + * PK: make XCBC comply with latest draft (keylength) + * + */ +#ifndef AUTOCONF_INCLUDED +#include +#endif +#include + +/* + * special case: ipsec core modular with this static algo inside: + * must avoid MODULE magic for this file + */ +#if defined(CONFIG_KLIPS_MODULE) && defined(CONFIG_KLIPS_ENC_AES) +#undef MODULE +#endif + +#include +#include + +#include /* printk() */ +#include /* error codes */ +#include /* size_t */ +#include + +/* Check if __exit is defined, if not null it */ +#ifndef __exit +#define __exit +#endif + +/* Low freeswan header coupling */ +#include "openswan/ipsec_alg.h" +#include "crypto/aes_cbc.h" + +#define CONFIG_KLIPS_ENC_AES_MAC 1 + +#define AES_CONTEXT_T aes_context +static int debug_aes=0; +static int test_aes=0; +static int excl_aes=0; +static int keyminbits=0; +static int keymaxbits=0; +#if defined(CONFIG_KLIPS_ENC_AES_MODULE) +MODULE_AUTHOR("JuanJo Ciarlante "); +#ifdef module_param +module_param(debug_aes,int,0600) +module_param(test_aes,int,0600) +module_param(excl_aes,int,0600) +module_param(keyminbits,int,0600) +module_param(keymaxbits,int,0600) +#else +MODULE_PARM(debug_aes, "i"); +MODULE_PARM(test_aes, "i"); +MODULE_PARM(excl_aes, "i"); +MODULE_PARM(keyminbits, "i"); +MODULE_PARM(keymaxbits, "i"); +#endif +#endif + +#if CONFIG_KLIPS_ENC_AES_MAC +#include "crypto/aes_xcbc_mac.h" + +/* + * Not IANA number yet (draft-ietf-ipsec-ciph-aes-xcbc-mac-00.txt). + * We use 9 for non-modular algorithm and none for modular, thus + * forcing user to specify one on module load. -kravietz + */ +#ifdef MODULE +static int auth_id=0; +#else +static int auth_id=9; +#endif +#ifdef module_param +module_param(auth_id, int, 0600); +#else +MODULE_PARM(auth_id, "i"); +#endif +#endif + +#define ESP_AES 12 /* truely _constant_ :) */ + +/* 128, 192 or 256 */ +#define ESP_AES_KEY_SZ_MIN 16 /* 128 bit secret key */ +#define ESP_AES_KEY_SZ_MAX 32 /* 256 bit secret key */ +#define ESP_AES_CBC_BLK_LEN 16 /* AES-CBC block size */ + +/* Values according to draft-ietf-ipsec-ciph-aes-xcbc-mac-02.txt + * -kravietz + */ +#define ESP_AES_MAC_KEY_SZ 16 /* 128 bit MAC key */ +#define ESP_AES_MAC_BLK_LEN 16 /* 128 bit block */ + +static int _aes_set_key(struct ipsec_alg_enc *alg, + __u8 * key_e, const __u8 * key, + size_t keysize) +{ + int ret; + AES_CONTEXT_T *ctx=(AES_CONTEXT_T*)key_e; + ret=AES_set_key(ctx, key, keysize)!=0? 0: -EINVAL; + if (debug_aes > 0) + printk(KERN_DEBUG "klips_debug:_aes_set_key:" + "ret=%d key_e=%p key=%p keysize=%ld\n", + ret, key_e, key, (unsigned long int) keysize); + return ret; +} + +static int _aes_cbc_encrypt(struct ipsec_alg_enc *alg, __u8 * key_e, + __u8 * in, int ilen, const __u8 * iv, + int encrypt) +{ + AES_CONTEXT_T *ctx=(AES_CONTEXT_T*)key_e; + if (debug_aes > 0) + printk(KERN_DEBUG "klips_debug:_aes_cbc_encrypt:" + "key_e=%p in=%p ilen=%d iv=%p encrypt=%d\n", + key_e, in, ilen, iv, encrypt); + return AES_cbc_encrypt(ctx, in, in, ilen, iv, encrypt); +} +#if CONFIG_KLIPS_ENC_AES_MAC +static int _aes_mac_set_key(struct ipsec_alg_auth *alg, __u8 * key_a, const __u8 * key, int keylen) { + aes_context_mac *ctxm=(aes_context_mac *)key_a; + return AES_xcbc_mac_set_key(ctxm, key, keylen)? 0 : -EINVAL; +} +static int _aes_mac_hash(struct ipsec_alg_auth *alg, __u8 * key_a, const __u8 * dat, int len, __u8 * hash, int hashlen) { + int ret; + char hash_buf[16]; + aes_context_mac *ctxm=(aes_context_mac *)key_a; + ret=AES_xcbc_mac_hash(ctxm, dat, len, hash_buf); + memcpy(hash, hash_buf, hashlen); + return ret; +} +static struct ipsec_alg_auth ipsec_alg_AES_MAC = { + ixt_common: { ixt_version: IPSEC_ALG_VERSION, + ixt_refcnt: ATOMIC_INIT(0), + ixt_name: "aes_mac", + ixt_blocksize: ESP_AES_MAC_BLK_LEN, + ixt_support: { + ias_exttype: IPSEC_ALG_TYPE_AUTH, + ias_id: 0, + ias_keyminbits: ESP_AES_MAC_KEY_SZ*8, + ias_keymaxbits: ESP_AES_MAC_KEY_SZ*8, + }, + }, +#if defined(CONFIG_KLIPS_ENC_AES_MODULE) + ixt_module: THIS_MODULE, +#endif + ixt_a_keylen: ESP_AES_MAC_KEY_SZ, + ixt_a_ctx_size: sizeof(aes_context_mac), + ixt_a_hmac_set_key: _aes_mac_set_key, + ixt_a_hmac_hash:_aes_mac_hash, +}; +#endif /* CONFIG_KLIPS_ENC_AES_MAC */ +static struct ipsec_alg_enc ipsec_alg_AES = { + ixt_common: { ixt_version: IPSEC_ALG_VERSION, + ixt_refcnt: ATOMIC_INIT(0), + ixt_name: "aes", + ixt_blocksize: ESP_AES_CBC_BLK_LEN, + ixt_support: { + ias_exttype: IPSEC_ALG_TYPE_ENCRYPT, + ias_id: ESP_AES, + ias_keyminbits: ESP_AES_KEY_SZ_MIN*8, + ias_keymaxbits: ESP_AES_KEY_SZ_MAX*8, + }, + }, +#if defined(CONFIG_KLIPS_ENC_AES_MODULE) + ixt_module: THIS_MODULE, +#endif + ixt_e_keylen: ESP_AES_KEY_SZ_MAX, + ixt_e_ctx_size: sizeof(AES_CONTEXT_T), + ixt_e_set_key: _aes_set_key, + ixt_e_cbc_encrypt:_aes_cbc_encrypt, +}; + +#if defined(CONFIG_KLIPS_ENC_AES_MODULE) +IPSEC_ALG_MODULE_INIT_MOD( ipsec_aes_init ) +#else +IPSEC_ALG_MODULE_INIT_STATIC( ipsec_aes_init ) +#endif +{ + int ret, test_ret; + + if (keyminbits) + ipsec_alg_AES.ixt_common.ixt_support.ias_keyminbits=keyminbits; + if (keymaxbits) { + ipsec_alg_AES.ixt_common.ixt_support.ias_keymaxbits=keymaxbits; + if (keymaxbits*8>ipsec_alg_AES.ixt_common.ixt_support.ias_keymaxbits) + ipsec_alg_AES.ixt_e_keylen=keymaxbits*8; + } + if (excl_aes) ipsec_alg_AES.ixt_common.ixt_state |= IPSEC_ALG_ST_EXCL; + ret=register_ipsec_alg_enc(&ipsec_alg_AES); + printk("ipsec_aes_init(alg_type=%d alg_id=%d name=%s): ret=%d\n", + ipsec_alg_AES.ixt_common.ixt_support.ias_exttype, + ipsec_alg_AES.ixt_common.ixt_support.ias_id, + ipsec_alg_AES.ixt_common.ixt_name, + ret); + if (ret==0 && test_aes) { + test_ret=ipsec_alg_test( + ipsec_alg_AES.ixt_common.ixt_support.ias_exttype , + ipsec_alg_AES.ixt_common.ixt_support.ias_id, + test_aes); + printk("ipsec_aes_init(alg_type=%d alg_id=%d): test_ret=%d\n", + ipsec_alg_AES.ixt_common.ixt_support.ias_exttype , + ipsec_alg_AES.ixt_common.ixt_support.ias_id, + test_ret); + } +#if CONFIG_KLIPS_ENC_AES_MAC + if (auth_id!=0){ + int ret; + ipsec_alg_AES_MAC.ixt_common.ixt_support.ias_id=auth_id; + ret=register_ipsec_alg_auth(&ipsec_alg_AES_MAC); + printk("ipsec_aes_init(alg_type=%d alg_id=%d name=%s): ret=%d\n", + ipsec_alg_AES_MAC.ixt_common.ixt_support.ias_exttype, + ipsec_alg_AES_MAC.ixt_common.ixt_support.ias_id, + ipsec_alg_AES_MAC.ixt_common.ixt_name, + ret); + if (ret==0 && test_aes) { + test_ret=ipsec_alg_test( + ipsec_alg_AES_MAC.ixt_common.ixt_support.ias_exttype, + ipsec_alg_AES_MAC.ixt_common.ixt_support.ias_id, + test_aes); + printk("ipsec_aes_init(alg_type=%d alg_id=%d): test_ret=%d\n", + ipsec_alg_AES_MAC.ixt_common.ixt_support.ias_exttype, + ipsec_alg_AES_MAC.ixt_common.ixt_support.ias_id, + test_ret); + } + } else { + printk(KERN_DEBUG "klips_debug: experimental ipsec_alg_AES_MAC not registered [Ok] (auth_id=%d)\n", auth_id); + } +#endif /* CONFIG_KLIPS_ENC_AES_MAC */ + return ret; +} + +#if defined(CONFIG_KLIPS_ENC_AES_MODULE) +IPSEC_ALG_MODULE_EXIT_MOD( ipsec_aes_fini ) +#else +IPSEC_ALG_MODULE_EXIT_STATIC( ipsec_aes_fini ) +#endif +{ +#if CONFIG_KLIPS_ENC_AES_MAC + if (auth_id) unregister_ipsec_alg_auth(&ipsec_alg_AES_MAC); +#endif /* CONFIG_KLIPS_ENC_AES_MAC */ + unregister_ipsec_alg_enc(&ipsec_alg_AES); + return; +} +#ifdef MODULE_LICENSE +MODULE_LICENSE("GPL"); +#endif + +#if 0 /* +NOT_YET */ +#ifndef MODULE +/* + * This is intended for static module setups, currently + * doesn't work for modular ipsec.o with static algos inside + */ +static int setup_keybits(const char *str) +{ + unsigned aux; + char *end; + + aux = simple_strtoul(str,&end,0); + if (aux != 128 && aux != 192 && aux != 256) + return 0; + keyminbits = aux; + + if (*end == 0 || *end != ',') + return 1; + str=end+1; + aux = simple_strtoul(str, NULL, 0); + if (aux != 128 && aux != 192 && aux != 256) + return 0; + if (aux >= keyminbits) + keymaxbits = aux; + return 1; +} +__setup("ipsec_aes_keybits=", setup_keybits); +#endif +#endif + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/alg/Config.alg_aes.in Mon Feb 9 13:51:03 2004 @@ -0,0 +1,3 @@ +if [ "$CONFIG_IPSEC_ALG" = "y" ]; then + tristate ' AES encryption algorithm' CONFIG_IPSEC_ENC_AES +fi --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/alg/Config.alg_cryptoapi.in Mon Feb 9 13:51:03 2004 @@ -0,0 +1,6 @@ +if [ "$CONFIG_IPSEC_ALG" = "y" ]; then + dep_tristate ' CRYPTOAPI ciphers support (needs cryptoapi patch)' CONFIG_IPSEC_ALG_CRYPTOAPI $CONFIG_CRYPTO + if [ "$CONFIG_IPSEC_ALG_CRYPTOAPI" != "n" ]; then + bool ' CRYPTOAPI proprietary ciphers ' CONFIG_IPSEC_ALG_NON_LIBRE + fi +fi --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/alg/Config.in Mon Feb 9 13:51:03 2004 @@ -0,0 +1,3 @@ +#Placeholder +source net/ipsec/alg/Config.alg_aes.in +source net/ipsec/alg/Config.alg_cryptoapi.in --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/alg/Makefile Mon Feb 9 13:51:03 2004 @@ -0,0 +1,112 @@ +# Makefile,v 1.1.2.1 2003/11/21 18:12:23 jjo Exp +ifeq ($(strip $(KLIPSMODULE)),) +FREESWANSRCDIR=. +else +FREESWANSRCDIR=../../../.. +endif +ifeq ($(strip $(KLIPS_TOP)),) +KLIPS_TOP=../../.. +override EXTRA_CFLAGS += -I$(KLIPS_TOP)/include +endif + +ifeq ($(CONFIG_IPSEC_DEBUG),y) +override EXTRA_CFLAGS += -g +endif + +# LIBCRYPTO normally comes as an argument from "parent" Makefile +# (this applies both to FS' "make module" and eg. Linux' "make modules" +# But make dep doest follow same evaluations, so we need this default: +LIBCRYPTO=$(TOPDIR)/lib/libcrypto + +override EXTRA_CFLAGS += -I$(LIBCRYPTO)/include +override EXTRA_CFLAGS += -Wall -Wpointer-arith -Wstrict-prototypes + +MOD_LIST_NAME := NET_MISC_MODULES + +#O_TARGET := static_init.o + +subdir- := +subdir-n := +subdir-y := +subdir-m := + +obj-y := static_init.o + +ARCH_ASM-y := +ARCH_ASM-$(CONFIG_M586) := i586 +ARCH_ASM-$(CONFIG_M586TSC) := i586 +ARCH_ASM-$(CONFIG_M586MMX) := i586 +ARCH_ASM-$(CONFIG_MK6) := i586 +ARCH_ASM-$(CONFIG_M686) := i686 +ARCH_ASM-$(CONFIG_MPENTIUMIII) := i686 +ARCH_ASM-$(CONFIG_MPENTIUM4) := i686 +ARCH_ASM-$(CONFIG_MK7) := i686 +ARCH_ASM-$(CONFIG_MCRUSOE) := i586 +ARCH_ASM-$(CONFIG_MWINCHIPC6) := i586 +ARCH_ASM-$(CONFIG_MWINCHIP2) := i586 +ARCH_ASM-$(CONFIG_MWINCHIP3D) := i586 +ARCH_ASM-$(CONFIG_USERMODE) := i586 + +ARCH_ASM :=$(ARCH_ASM-y) +ifdef NO_ASM +ARCH_ASM := +endif + +# The algorithm makefiles may put dependences, short-circuit them +null: + +makefiles=$(filter-out %.preipsec, $(wildcard Makefile.alg_*)) +ifneq ($(makefiles),) +#include Makefile.alg_aes +#include Makefile.alg_aes-opt +include $(makefiles) +endif + +# These rules translate from new to old makefile rules +# Translate to Rules.make lists. +multi-used := $(filter $(list-multi), $(obj-y) $(obj-m)) +multi-objs := $(foreach m, $(multi-used), $($(basename $(m))-objs)) +active-objs := $(sort $(multi-objs) $(obj-y) $(obj-m)) +O_OBJS := $(obj-y) +M_OBJS := $(obj-m) +MIX_OBJS := $(filter $(export-objs), $(active-objs)) +#OX_OBJS := $(export-objs) +SUB_DIRS := $(subdir-y) +ALL_SUB_DIRS := $(subdir-y) $(subdir-m) +MOD_SUB_DIRS := $(subdir-m) + + +static_init_mod.o: $(obj-y) + rm -f $@ + $(LD) $(LD_EXTRAFLAGS) $(obj-y) -r -o $@ + +perlasm: ../../../crypto/ciphers/des/asm/perlasm + ln -sf $? $@ + +$(obj-y) $(obj-m): $(TOPDIR)/include/linux/config.h $(TOPDIR)/include/linux/autoconf.h $(KLIPS_TOP)/include/freeswan/ipsec_alg.h +$(alg_obj-y) $(alg_obj-m): perlasm $(TOPDIR)/include/linux/config.h $(TOPDIR)/include/linux/autoconf.h $(KLIPS_TOP)/include/freeswan/ipsec_alg.h + + +all_alg_modules: perlasm $(ALG_MODULES) + @echo "ALG_MODULES=$(ALG_MODULES)" + + +# +# Construct alg. init. function: call ipsec_ALGO_init() for every static algo +# Needed when there are static algos (with static or modular ipsec.o) +# +static_init.c: $(TOPDIR)/include/linux/autoconf.h Makefile $(makefiles) scripts/mk-static_init.c.sh + @echo "Re-creating $@" + $(SHELL) scripts/mk-static_init.c.sh $(static_init-func-y) > $@ + +clean: + @for i in $(ALG_SUBDIRS);do test -d $$i && make -C $$i clean;done;exit 0 + @find . -type l -exec rm -f {} \; + -rm -f perlasm + -rm -rf $(ALG_SUBDIRS) + -rm -f *.o static_init.c + +ifdef TOPDIR +include $(TOPDIR)/Rules.make +endif + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/alg/Makefile.alg_aes Mon Feb 9 13:51:03 2004 @@ -0,0 +1,18 @@ +MOD_AES := ipsec_aes.o + +ALG_MODULES += $(MOD_AES) +ALG_SUBDIRS += libaes + +obj-$(CONFIG_IPSEC_ALG_AES) += $(MOD_AES) +static_init-func-$(CONFIG_IPSEC_ALG_AES)+= ipsec_aes_init +alg_obj-$(CONFIG_IPSEC_ALG_AES) += ipsec_alg_aes.o + +AES_OBJS := ipsec_alg_aes.o $(LIBCRYPTO)/libaes/libaes.a + + +$(MOD_AES): $(AES_OBJS) + $(LD) $(EXTRA_LDFLAGS) -r $(AES_OBJS) -o $@ + +$(LIBCRYPTO)/libaes/libaes.a: + $(MAKE) -C $(LIBCRYPTO)/libaes CC='$(CC)' 'ARCH_ASM=$(ARCH_ASM)' CFLAGS='$(CFLAGS) $(EXTRA_CFLAGS)' libaes.a + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/alg/Makefile.alg_cryptoapi Mon Feb 9 13:51:03 2004 @@ -0,0 +1,14 @@ +MOD_CRYPTOAPI := ipsec_cryptoapi.o + +ifneq ($(wildcard $(TOPDIR)/include/linux/crypto.h),) +ALG_MODULES += $(MOD_CRYPTOAPI) +obj-$(CONFIG_IPSEC_ALG_CRYPTOAPI) += $(MOD_CRYPTOAPI) +static_init-func-$(CONFIG_IPSEC_ALG_CRYPTOAPI)+= ipsec_cryptoapi_init +alg_obj-$(CONFIG_IPSEC_ALG_CRYPTOAPI) += ipsec_alg_cryptoapi.o +else +$(warning "Linux CryptoAPI (2.4.22+ or 2.6.x) not found, not building ipsec_cryptoapi.o") +endif + +CRYPTOAPI_OBJS := ipsec_alg_cryptoapi.o +$(MOD_CRYPTOAPI): $(CRYPTOAPI_OBJS) + $(LD) -r $(CRYPTOAPI_OBJS) -o $@ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/alg/ipsec_alg_cryptoapi.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,442 @@ +/* + * ipsec_alg to linux cryptoapi GLUE + * + * Authors: CODE.ar TEAM + * Harpo MAxx + * JuanJo Ciarlante + * Luciano Ruete + * + * ipsec_alg_cryptoapi.c,v 1.1.2.1 2003/11/21 18:12:23 jjo Exp + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * Example usage: + * modinfo -p ipsec_cryptoapi (quite useful info, including supported algos) + * modprobe ipsec_cryptoapi + * modprobe ipsec_cryptoapi test=1 + * modprobe ipsec_cryptoapi excl=1 (exclusive cipher/algo) + * modprobe ipsec_cryptoapi noauto=1 aes=1 twofish=1 (only these ciphers) + * modprobe ipsec_cryptoapi aes=128,128 (force these keylens) + * modprobe ipsec_cryptoapi des_ede3=0 (everything but 3DES) + */ +#ifndef AUTOCONF_INCLUDED +#include +#endif +#include + +/* + * special case: ipsec core modular with this static algo inside: + * must avoid MODULE magic for this file + */ +#if CONFIG_IPSEC_MODULE && CONFIG_IPSEC_ALG_CRYPTOAPI +#undef MODULE +#endif + +#include +#include + +#include /* printk() */ +#include /* error codes */ +#include /* size_t */ +#include + +/* Check if __exit is defined, if not null it */ +#ifndef __exit +#define __exit +#endif + +/* warn the innocent */ +#if !defined (CONFIG_CRYPTO) && !defined (CONFIG_CRYPTO_MODULE) +#warning "No linux CryptoAPI found, install 2.4.22+ or 2.6.x" +#define NO_CRYPTOAPI_SUPPORT +#endif +/* Low freeswan header coupling */ +#include "openswan/ipsec_alg.h" + +#include +#ifdef CRYPTO_API_VERSION_CODE +#warning "Old CryptoAPI is not supported. Only linux-2.4.22+ or linux-2.6.x are supported" +#define NO_CRYPTOAPI_SUPPORT +#endif + +#ifdef NO_CRYPTOAPI_SUPPORT +#warning "Building an unusable module :P" +/* Catch old CryptoAPI by not allowing module to load */ +IPSEC_ALG_MODULE_INIT( ipsec_cryptoapi_init ) +{ + printk(KERN_WARNING "ipsec_cryptoapi.o was not built on stock Linux CryptoAPI (2.4.22+ or 2.6.x), not loading.\n"); + return -EINVAL; +} +#else +#include +#include +#include + +#define CIPHERNAME_AES "aes" +#define CIPHERNAME_3DES "des3_ede" +#define CIPHERNAME_BLOWFISH "blowfish" +#define CIPHERNAME_CAST "cast5" +#define CIPHERNAME_SERPENT "serpent" +#define CIPHERNAME_TWOFISH "twofish" + +#define ESP_3DES 3 +#define ESP_AES 12 +#define ESP_BLOWFISH 7 /* truely _constant_ :) */ +#define ESP_CAST 6 /* quite constant :) */ +#define ESP_SERPENT 252 /* from ipsec drafts */ +#define ESP_TWOFISH 253 /* from ipsec drafts */ + +#define AH_MD5 2 +#define AH_SHA 3 +#define DIGESTNAME_MD5 "md5" +#define DIGESTNAME_SHA1 "sha1" + +MODULE_AUTHOR("Juanjo Ciarlante, Harpo MAxx, Luciano Ruete"); +static int debug=0; +static int test=0; +static int excl=0; +static int noauto = 0; + +static int des_ede3[] = {-1, -1}; +static int aes[] = {-1, -1}; +static int blowfish[] = {-1, -1}; +static int cast[] = {-1, -1}; +static int serpent[] = {-1, -1}; +static int twofish[] = {-1, -1}; + +#ifdef module_param +module_param(debug,int,0600); +module_param(test,int,0600); +module_param(ebug,int,0600); + +module_param(noauto,int,0600); +module_param(ebug,int,0600); + +module_param_array(des_ede3,int,NULL,0); +module_param(aes,int,NULL,0); +module_param(blowfish,int,NULL,0); +module_param(cast,int,NULL,0); +module_param(serpent,int,NULL,0); +module_param(twofish,int,NULL,0); +#else +MODULE_PARM(debug, "i"); +MODULE_PARM(test, "i"); +MODULE_PARM(excl, "i"); + +MODULE_PARM(noauto,"i"); + +MODULE_PARM(des_ede3,"1-2i"); +MODULE_PARM(aes,"1-2i"); +MODULE_PARM(blowfish,"1-2i"); +MODULE_PARM(cast,"1-2i"); +MODULE_PARM(serpent,"1-2i"); +MODULE_PARM(twofish,"1-2i"); +#endif + +MODULE_PARM_DESC(noauto, "Dont try all known algos, just setup enabled ones"); + +MODULE_PARM_DESC(des_ede3, "0: disable | 1: force_enable | min,max: dontuse"); +MODULE_PARM_DESC(aes, "0: disable | 1: force_enable | min,max: keybitlens"); +MODULE_PARM_DESC(blowfish, "0: disable | 1: force_enable | min,max: keybitlens"); +MODULE_PARM_DESC(cast, "0: disable | 1: force_enable | min,max: keybitlens"); +MODULE_PARM_DESC(serpent, "0: disable | 1: force_enable | min,max: keybitlens"); +MODULE_PARM_DESC(twofish, "0: disable | 1: force_enable | min,max: keybitlens"); + +struct ipsec_alg_capi_cipher { + const char *ciphername; /* cryptoapi's ciphername */ + unsigned blocksize; + unsigned short minbits; + unsigned short maxbits; + int *parm; /* lkm param for this cipher */ + struct ipsec_alg_enc alg; /* note it's not a pointer */ +}; +static struct ipsec_alg_capi_cipher alg_capi_carray[] = { + { CIPHERNAME_AES , 16, 128, 256, aes , { ixt_alg_id: ESP_AES, }}, + { CIPHERNAME_TWOFISH , 16, 128, 256, twofish, { ixt_alg_id: ESP_TWOFISH, }}, + { CIPHERNAME_SERPENT , 16, 128, 256, serpent, { ixt_alg_id: ESP_SERPENT, }}, + { CIPHERNAME_CAST , 8, 128, 128, cast , { ixt_alg_id: ESP_CAST, }}, + { CIPHERNAME_BLOWFISH , 8, 96, 448, blowfish,{ ixt_alg_id: ESP_BLOWFISH, }}, + { CIPHERNAME_3DES , 8, 192, 192, des_ede3,{ ixt_alg_id: ESP_3DES, }}, + { NULL, 0, 0, 0, NULL, {} } +}; +#ifdef NOT_YET +struct ipsec_alg_capi_digest { + const char *digestname; /* cryptoapi's digestname */ + struct digest_implementation *di; + struct ipsec_alg_auth alg; /* note it's not a pointer */ +}; +static struct ipsec_alg_capi_cipher alg_capi_darray[] = { + { DIGESTNAME_MD5, NULL, { ixt_alg_id: AH_MD5, }}, + { DIGESTNAME_SHA1, NULL, { ixt_alg_id: AH_SHA, }}, + { NULL, NULL, {} } +}; +#endif +/* + * "generic" linux cryptoapi setup_cipher() function + */ +int setup_cipher(const char *ciphername) +{ + return crypto_alg_available(ciphername, 0); +} + +/* + * setups ipsec_alg_capi_cipher "hyper" struct components, calling + * register_ipsec_alg for cointaned ipsec_alg object + */ +static void _capi_destroy_key (struct ipsec_alg_enc *alg, __u8 *key_e); +static __u8 * _capi_new_key (struct ipsec_alg_enc *alg, const __u8 *key, size_t keylen); +static int _capi_cbc_encrypt(struct ipsec_alg_enc *alg, __u8 * key_e, __u8 * in, int ilen, const __u8 * iv, int encrypt); + +static int +setup_ipsec_alg_capi_cipher(struct ipsec_alg_capi_cipher *cptr) +{ + int ret; + cptr->alg.ixt_version = IPSEC_ALG_VERSION; + cptr->alg.ixt_module = THIS_MODULE; + atomic_set (& cptr->alg.ixt_refcnt, 0); + strncpy (cptr->alg.ixt_name , cptr->ciphername, sizeof (cptr->alg.ixt_name)); + + cptr->alg.ixt_blocksize=cptr->blocksize; + cptr->alg.ixt_keyminbits=cptr->minbits; + cptr->alg.ixt_keymaxbits=cptr->maxbits; + cptr->alg.ixt_state = 0; + if (excl) cptr->alg.ixt_state |= IPSEC_ALG_ST_EXCL; + cptr->alg.ixt_e_keylen=cptr->alg.ixt_keymaxbits/8; + cptr->alg.ixt_e_ctx_size = 0; + cptr->alg.ixt_alg_type = IPSEC_ALG_TYPE_ENCRYPT; + cptr->alg.ixt_e_new_key = _capi_new_key; + cptr->alg.ixt_e_destroy_key = _capi_destroy_key; + cptr->alg.ixt_e_cbc_encrypt = _capi_cbc_encrypt; + cptr->alg.ixt_data = cptr; + + ret=register_ipsec_alg_enc(&cptr->alg); + printk("setup_ipsec_alg_capi_cipher(): " + "alg_type=%d alg_id=%d name=%s " + "keyminbits=%d keymaxbits=%d, ret=%d\n", + cptr->alg.ixt_alg_type, + cptr->alg.ixt_alg_id, + cptr->alg.ixt_name, + cptr->alg.ixt_keyminbits, + cptr->alg.ixt_keymaxbits, + ret); + return ret; +} +/* + * called in ipsec_sa_wipe() time, will destroy key contexts + * and do 1 unbind() + */ +static void +_capi_destroy_key (struct ipsec_alg_enc *alg, __u8 *key_e) +{ + struct crypto_tfm *tfm=(struct crypto_tfm*)key_e; + + if (debug > 0) + printk(KERN_DEBUG "klips_debug: _capi_destroy_key:" + "name=%s key_e=%p \n", + alg->ixt_name, key_e); + if (!key_e) { + printk(KERN_ERR "klips_debug: _capi_destroy_key:" + "name=%s NULL key_e!\n", + alg->ixt_name); + return; + } + crypto_free_tfm(tfm); +} + +/* + * create new key context, need alg->ixt_data to know which + * (of many) cipher inside this module is the target + */ +static __u8 * +_capi_new_key (struct ipsec_alg_enc *alg, const __u8 *key, size_t keylen) +{ + struct ipsec_alg_capi_cipher *cptr; + struct crypto_tfm *tfm=NULL; + + cptr = alg->ixt_data; + if (!cptr) { + printk(KERN_ERR "_capi_new_key(): " + "NULL ixt_data (?!) for \"%s\" algo\n" + , alg->ixt_name); + goto err; + } + if (debug > 0) + printk(KERN_DEBUG "klips_debug:_capi_new_key:" + "name=%s cptr=%p key=%p keysize=%d\n", + alg->ixt_name, cptr, key, keylen); + + /* + * alloc tfm + */ + tfm = crypto_alloc_tfm(cptr->ciphername, CRYPTO_TFM_MODE_CBC); + if (!tfm) { + printk(KERN_ERR "_capi_new_key(): " + "NULL tfm for \"%s\" cryptoapi (\"%s\") algo\n" + , alg->ixt_name, cptr->ciphername); + goto err; + } + if (crypto_cipher_setkey(tfm, key, keylen) < 0) { + printk(KERN_ERR "_capi_new_key(): " + "failed new_key() for \"%s\" cryptoapi algo (keylen=%d)\n" + , alg->ixt_name, keylen); + crypto_free_tfm(tfm); + tfm=NULL; + } +err: + if (debug > 0) + printk(KERN_DEBUG "klips_debug:_capi_new_key:" + "name=%s key=%p keylen=%d tfm=%p\n", + alg->ixt_name, key, keylen, tfm); + return (__u8 *) tfm; +} +/* + * core encryption function: will use cx->ci to call actual cipher's + * cbc function + */ +static int +_capi_cbc_encrypt(struct ipsec_alg_enc *alg, __u8 * key_e, __u8 * in, int ilen, const __u8 * iv, int encrypt) { + int error =0; + struct crypto_tfm *tfm=(struct crypto_tfm *)key_e; + struct scatterlist sg = { + .page = virt_to_page(in), + .offset = (unsigned long)(in) % PAGE_SIZE, + .length=ilen, + }; + if (debug > 1) + printk(KERN_DEBUG "klips_debug:_capi_cbc_encrypt:" + "key_e=%p " + "in=%p out=%p ilen=%d iv=%p encrypt=%d\n" + , key_e + , in, in, ilen, iv, encrypt); + crypto_cipher_set_iv(tfm, iv, crypto_tfm_alg_ivsize(tfm)); + if (encrypt) + error = crypto_cipher_encrypt (tfm, &sg, &sg, ilen); + else + error = crypto_cipher_decrypt (tfm, &sg, &sg, ilen); + if (debug > 1) + printk(KERN_DEBUG "klips_debug:_capi_cbc_encrypt:" + "error=%d\n" + , error); + return (error<0)? error : ilen; +} +/* + * main initialization loop: for each cipher in list, do + * 1) setup cryptoapi cipher else continue + * 2) register ipsec_alg object + */ +static int +setup_cipher_list (struct ipsec_alg_capi_cipher* clist) +{ + struct ipsec_alg_capi_cipher *cptr; + /* foreach cipher in list ... */ + for (cptr=clist;cptr->ciphername;cptr++) { + /* + * see if cipher has been disabled (0) or + * if noauto set and not enabled (1) + */ + if (cptr->parm[0] == 0 || (noauto && cptr->parm[0] < 0)) { + if (debug>0) + printk(KERN_INFO "setup_cipher_list(): " + "ciphername=%s skipped at user request: " + "noauto=%d parm[0]=%d parm[1]=%d\n" + , cptr->ciphername + , noauto + , cptr->parm[0] + , cptr->parm[1]); + continue; + } + /* + * use a local ci to avoid touching cptr->ci, + * if register ipsec_alg success then bind cipher + */ + if( setup_cipher(cptr->ciphername) ) { + if (debug > 0) + printk(KERN_DEBUG "klips_debug:" + "setup_cipher_list():" + "ciphername=%s found\n" + , cptr->ciphername); + if (setup_ipsec_alg_capi_cipher(cptr) == 0) { + + + } else { + printk(KERN_ERR "klips_debug:" + "setup_cipher_list():" + "ciphername=%s failed ipsec_alg_register\n" + , cptr->ciphername); + } + } else { + if (debug>0) + printk(KERN_INFO "setup_cipher_list(): lookup for ciphername=%s: not found \n", + cptr->ciphername); + } + } + return 0; +} +/* + * deregister ipsec_alg objects and unbind ciphers + */ +static int +unsetup_cipher_list (struct ipsec_alg_capi_cipher* clist) +{ + struct ipsec_alg_capi_cipher *cptr; + /* foreach cipher in list ... */ + for (cptr=clist;cptr->ciphername;cptr++) { + if (cptr->alg.ixt_state & IPSEC_ALG_ST_REGISTERED) { + unregister_ipsec_alg_enc(&cptr->alg); + } + } + return 0; +} +/* + * test loop for registered algos + */ +static int +test_cipher_list (struct ipsec_alg_capi_cipher* clist) +{ + int test_ret; + struct ipsec_alg_capi_cipher *cptr; + /* foreach cipher in list ... */ + for (cptr=clist;cptr->ciphername;cptr++) { + if (cptr->alg.ixt_state & IPSEC_ALG_ST_REGISTERED) { + test_ret=ipsec_alg_test( + cptr->alg.ixt_alg_type, + cptr->alg.ixt_alg_id, + test); + printk("test_cipher_list(alg_type=%d alg_id=%d): test_ret=%d\n", + cptr->alg.ixt_alg_type, + cptr->alg.ixt_alg_id, + test_ret); + } + } + return 0; +} + +IPSEC_ALG_MODULE_INIT( ipsec_cryptoapi_init ) +{ + int ret, test_ret; + if ((ret=setup_cipher_list(alg_capi_carray)) < 0) + return -EPROTONOSUPPORT; + if (ret==0 && test) { + test_ret=test_cipher_list(alg_capi_carray); + } + return ret; +} +IPSEC_ALG_MODULE_EXIT( ipsec_cryptoapi_fini ) +{ + unsetup_cipher_list(alg_capi_carray); + return; +} +#ifdef MODULE_LICENSE +MODULE_LICENSE("GPL"); +#endif + +EXPORT_NO_SYMBOLS; +#endif /* NO_CRYPTOAPI_SUPPORT */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/alg/scripts/mk-static_init.c.sh Mon Feb 9 13:51:03 2004 @@ -0,0 +1,18 @@ +#!/bin/sh +cat << EOF +#include +#include +#include "freeswan/ipsec_alg.h" +$(for i in $*; do + test -z "$i" && continue + echo "extern int $i(void);" +done) +void ipsec_alg_static_init(void){ + int __attribute__ ((unused)) err=0; +$(for i in $*; do + test -z "$i" && continue + echo " if ((err=$i()) < 0)" + echo " printk(KERN_WARNING \"$i() returned %d\", err);" +done) +} +EOF --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/anyaddr.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,148 @@ +/* + * special addresses + * Copyright (C) 2000 Henry Spencer. + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + * License for more details. + * + * RCSID $Id: anyaddr.c,v 1.10.10.1 2006/11/24 05:55:46 paul Exp $ + */ +#include "openswan.h" + +/* these are mostly fallbacks for the no-IPv6-support-in-library case */ +#ifndef IN6ADDR_ANY_INIT +#define IN6ADDR_ANY_INIT {{{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }}} +#endif +#ifndef IN6ADDR_LOOPBACK_INIT +#define IN6ADDR_LOOPBACK_INIT {{{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 }}} +#endif + +static struct in6_addr v6any = IN6ADDR_ANY_INIT; +static struct in6_addr v6loop = IN6ADDR_LOOPBACK_INIT; + +/* + - anyaddr - initialize to the any-address value + */ +err_t /* NULL for success, else string literal */ +anyaddr(af, dst) +int af; /* address family */ +ip_address *dst; +{ + uint32_t v4any = htonl(INADDR_ANY); + + switch (af) { + case AF_INET: + return initaddr((unsigned char *)&v4any, sizeof(v4any), af, dst); + break; + case AF_INET6: + return initaddr((unsigned char *)&v6any, sizeof(v6any), af, dst); + break; + default: + return "unknown address family in anyaddr/unspecaddr"; + break; + } +} + +/* + - unspecaddr - initialize to the unspecified-address value + */ +err_t /* NULL for success, else string literal */ +unspecaddr(af, dst) +int af; /* address family */ +ip_address *dst; +{ + return anyaddr(af, dst); +} + +/* + - loopbackaddr - initialize to the loopback-address value + */ +err_t /* NULL for success, else string literal */ +loopbackaddr(af, dst) +int af; /* address family */ +ip_address *dst; +{ + uint32_t v4loop = htonl(INADDR_LOOPBACK); + + switch (af) { + case AF_INET: + return initaddr((unsigned char *)&v4loop, sizeof(v4loop), af, dst); + break; + case AF_INET6: + return initaddr((unsigned char *)&v6loop, sizeof(v6loop), af, dst); + break; + default: + return "unknown address family in loopbackaddr"; + break; + } +} + +/* + - isanyaddr - test for the any-address value + */ +int +isanyaddr(src) +const ip_address *src; +{ + uint32_t v4any = htonl(INADDR_ANY); + int cmp; + + switch (src->u.v4.sin_family) { + case AF_INET: + cmp = memcmp(&src->u.v4.sin_addr.s_addr, &v4any, sizeof(v4any)); + break; + case AF_INET6: + cmp = memcmp(&src->u.v6.sin6_addr, &v6any, sizeof(v6any)); + break; + case 0: + /* a zeroed structure is considered any address */ + return 1; + default: + return 0; + break; + } + + return (cmp == 0) ? 1 : 0; +} + +/* + - isunspecaddr - test for the unspecified-address value + */ +int +isunspecaddr(src) +const ip_address *src; +{ + return isanyaddr(src); +} + +/* + - isloopbackaddr - test for the loopback-address value + */ +int +isloopbackaddr(src) +const ip_address *src; +{ + uint32_t v4loop = htonl(INADDR_LOOPBACK); + int cmp; + + switch (src->u.v4.sin_family) { + case AF_INET: + cmp = memcmp(&src->u.v4.sin_addr.s_addr, &v4loop, sizeof(v4loop)); + break; + case AF_INET6: + cmp = memcmp(&src->u.v6.sin6_addr, &v6loop, sizeof(v6loop)); + break; + default: + return 0; + break; + } + + return (cmp == 0) ? 1 : 0; +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/datatot.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,234 @@ +/* + * convert from binary data (e.g. key) to text form + * Copyright (C) 2000 Henry Spencer. + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + * License for more details. + * + * RCSID $Id: datatot.c,v 1.7 2005/04/14 20:48:43 mcr Exp $ + */ +#include "openswan.h" + +static void convert(const char *src, size_t nreal, int format, char *out); + +/* + - datatot - convert data bytes to text + */ +size_t /* true length (with NUL) for success */ +datatot(src, srclen, format, dst, dstlen) +const char *src; +size_t srclen; +int format; /* character indicating what format */ +char *dst; /* need not be valid if dstlen is 0 */ +size_t dstlen; +{ + size_t inblocksize; /* process this many bytes at a time */ + size_t outblocksize; /* producing this many */ + size_t breakevery; /* add a _ every this many (0 means don't) */ + size_t sincebreak; /* output bytes since last _ */ + char breakchar; /* character used to break between groups */ + char inblock[10]; /* enough for any format */ + char outblock[10]; /* enough for any format */ + char fake[1]; /* fake output area for dstlen == 0 */ + size_t needed; /* return value */ + char *stop; /* where the terminating NUL will go */ + size_t ntodo; /* remaining input */ + size_t nreal; + char *out; + char *prefix; + + breakevery = 0; + breakchar = '_'; + + switch (format) { + case 0: + case 'h': + format = 'x'; + breakevery = 8; + /* FALLTHROUGH */ + case 'x': + inblocksize = 1; + outblocksize = 2; + prefix = "0x"; + break; + case ':': + format = 'x'; + breakevery = 2; + breakchar = ':'; + /* FALLTHROUGH */ + case 16: + inblocksize = 1; + outblocksize = 2; + prefix = ""; + format = 'x'; + break; + case 's': + inblocksize = 3; + outblocksize = 4; + prefix = "0s"; + break; + case 64: /* beware, equals ' ' */ + inblocksize = 3; + outblocksize = 4; + prefix = ""; + format = 's'; + break; + default: + return 0; + break; + } + + user_assert(inblocksize < sizeof(inblock)); + user_assert(outblocksize < sizeof(outblock)); + user_assert(breakevery % outblocksize == 0); + + if (srclen == 0) + return 0; + ntodo = srclen; + + if (dstlen == 0) { /* dispose of awkward special case */ + dst = fake; + dstlen = 1; + } + stop = dst + dstlen - 1; + + nreal = strlen(prefix); + needed = nreal; /* for starters */ + if (dstlen <= nreal) { /* prefix won't fit */ + strncpy(dst, prefix, dstlen - 1); + dst += dstlen - 1; + } else { + strcpy(dst, prefix); + dst += nreal; + } + + user_assert(dst <= stop); + sincebreak = 0; + + while (ntodo > 0) { + if (ntodo < inblocksize) { /* incomplete input */ + memset(inblock, 0, sizeof(inblock)); + memcpy(inblock, src, ntodo); + src = inblock; + nreal = ntodo; + ntodo = inblocksize; + } else + nreal = inblocksize; + out = (outblocksize > stop - dst) ? outblock : dst; + + convert(src, nreal, format, out); + needed += outblocksize; + sincebreak += outblocksize; + if (dst < stop) { + if (out != dst) { + user_assert(outblocksize > stop - dst); + memcpy(dst, out, stop - dst); + dst = stop; + } else + dst += outblocksize; + } + + src += inblocksize; + ntodo -= inblocksize; + if (breakevery != 0 && sincebreak >= breakevery && ntodo > 0) { + if (dst < stop) + *dst++ = breakchar; + needed++; + sincebreak = 0; + } + } + + user_assert(dst <= stop); + *dst++ = '\0'; + needed++; + + return needed; +} + +/* + - convert - convert one input block to one output block + */ +static void +convert(src, nreal, format, out) +const char *src; +size_t nreal; /* how much of the input block is real */ +int format; +char *out; +{ + static char hex[] = "0123456789abcdef"; + static char base64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + "abcdefghijklmnopqrstuvwxyz" + "0123456789+/"; + unsigned char c; + unsigned char c1, c2, c3; + + user_assert(nreal > 0); + switch (format) { + case 'x': + user_assert(nreal == 1); + c = (unsigned char)*src; + *out++ = hex[c >> 4]; + *out++ = hex[c & 0xf]; + break; + case 's': + c1 = (unsigned char)*src++; + c2 = (unsigned char)*src++; + c3 = (unsigned char)*src++; + *out++ = base64[c1 >> 2]; /* top 6 bits of c1 */ + c = (c1 & 0x3) << 4; /* bottom 2 of c1... */ + c |= c2 >> 4; /* ...top 4 of c2 */ + *out++ = base64[c]; + if (nreal == 1) + *out++ = '='; + else { + c = (c2 & 0xf) << 2; /* bottom 4 of c2... */ + c |= c3 >> 6; /* ...top 2 of c3 */ + *out++ = base64[c]; + } + if (nreal <= 2) + *out++ = '='; + else + *out++ = base64[c3 & 0x3f]; /* bottom 6 of c3 */ + break; + default: + user_assert(nreal == 0); /* unknown format */ + break; + } +} + +/* + - datatoa - convert data to ASCII + * backward-compatibility synonym for datatot + */ +size_t /* true length (with NUL) for success */ +datatoa(src, srclen, format, dst, dstlen) +const char *src; +size_t srclen; +int format; /* character indicating what format */ +char *dst; /* need not be valid if dstlen is 0 */ +size_t dstlen; +{ + return datatot(src, srclen, format, dst, dstlen); +} + +/* + - bytestoa - convert data bytes to ASCII + * backward-compatibility synonym for datatot + */ +size_t /* true length (with NUL) for success */ +bytestoa(src, srclen, format, dst, dstlen) +const char *src; +size_t srclen; +int format; /* character indicating what format */ +char *dst; /* need not be valid if dstlen is 0 */ +size_t dstlen; +{ + return datatot(src, srclen, format, dst, dstlen); +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/defconfig Mon Feb 9 13:51:03 2004 @@ -0,0 +1,148 @@ + +# +# RCSID $Id: defconfig,v 1.28.2.1 2006/10/11 18:14:33 paul Exp $ +# + +# +# FreeS/WAN IPSec implementation, KLIPS kernel config defaults +# + +# +# First, lets override stuff already set or not in the kernel config. +# +# We can't even think about leaving this off... +CONFIG_INET=y + +# +# This must be on for subnet protection. +CONFIG_IP_FORWARD=y + +# Shut off IPSEC masquerading if it has been enabled, since it will +# break the compile. IPPROTO_ESP and IPPROTO_AH were included in +# net/ipv4/ip_masq.c when they should have gone into include/linux/in.h. +CONFIG_IP_MASQUERADE_IPSEC=n + +# +# Next, lets set the recommended FreeS/WAN configuration. +# + +# To config as static (preferred), 'y'. To config as module, 'm'. +CONFIG_KLIPS=m + +# To do tunnel mode IPSec, this must be enabled. +CONFIG_KLIPS_IPIP=y + +# To enable authentication, say 'y'. (Highly recommended) +CONFIG_KLIPS_AH=y + +# Authentication algorithm(s): +CONFIG_KLIPS_AUTH_HMAC_MD5=y +CONFIG_KLIPS_AUTH_HMAC_SHA1=y + +# To enable encryption, say 'y'. (Highly recommended) +CONFIG_KLIPS_ESP=y + +# modular algo extensions (and new ALGOs) +CONFIG_KLIPS_ALG=y + +# Encryption algorithm(s): +CONFIG_KLIPS_ENC_3DES=y +CONFIG_KLIPS_ENC_AES=y +# CONFIG_KLIPS_ENC_NULL=y + +# Use CryptoAPI for ALG? - by default, no. +CONFIG_KLIPS_ENC_CRYPTOAPI=n + +# IP Compression: new, probably still has minor bugs. +CONFIG_KLIPS_IPCOMP=y + +# To enable userspace-switchable KLIPS debugging, say 'y'. +CONFIG_KLIPS_DEBUG=y + +# NAT Traversal +CONFIG_IPSEC_NAT_TRAVERSAL=y + +# +# +# $Log: defconfig,v $ +# Revision 1.28.2.1 2006/10/11 18:14:33 paul +# Add JuanJo Ciarlante's ESP_NULL patches for KLIPS, but leave it disabled +# per default. +# +# Revision 1.28 2005/05/11 03:15:42 mcr +# adjusted makefiles to sanely build modules properly. +# +# Revision 1.27 2005/03/20 03:00:05 mcr +# default configuration should enable NAT_TRAVERSAL. +# +# Revision 1.26 2004/07/10 19:11:18 mcr +# CONFIG_IPSEC -> CONFIG_KLIPS. +# +# Revision 1.25 2004/07/05 01:03:53 mcr +# fix for adding cryptoapi code. +# keep it off for now, since UMLs do not have it yet. +# +# Revision 1.24 2004/04/06 02:49:25 mcr +# pullup of algo code from alg-branch. +# +# Revision 1.23.2.2 2004/04/05 04:30:46 mcr +# patches for alg-branch to compile/work with 2.x openswan +# +# Revision 1.23.2.1 2003/12/22 15:25:52 jjo +# . Merged algo-0.8.1-rc11-test1 into alg-branch +# +# Revision 1.23 2003/12/10 01:14:27 mcr +# NAT-traversal patches to KLIPS. +# +# Revision 1.22 2003/02/24 19:37:27 mcr +# changed default compilation mode to static. +# +# Revision 1.21 2002/04/24 07:36:27 mcr +# Moved from ./klips/net/ipsec/defconfig,v +# +# Revision 1.20 2002/04/02 04:07:40 mcr +# default build is now 'm'odule for KLIPS +# +# Revision 1.19 2002/03/08 18:57:17 rgb +# Added a blank line at the beginning of the file to make it easier for +# other projects to patch ./arch/i386/defconfig, for example +# LIDS+grSecurity requested by Jason Pattie. +# +# Revision 1.18 2000/11/30 17:26:56 rgb +# Cleaned out unused options and enabled ipcomp by default. +# +# Revision 1.17 2000/09/15 11:37:01 rgb +# Merge in heavily modified Svenning Soerensen's +# IPCOMP zlib deflate code. +# +# Revision 1.16 2000/09/08 19:12:55 rgb +# Change references from DEBUG_IPSEC to CONFIG_IPSEC_DEBUG. +# +# Revision 1.15 2000/05/24 19:37:13 rgb +# *** empty log message *** +# +# Revision 1.14 2000/05/11 21:14:57 henry +# just commenting the FOOBAR=y lines out is not enough +# +# Revision 1.13 2000/05/10 20:17:58 rgb +# Comment out netlink defaults, which are no longer needed. +# +# Revision 1.12 2000/05/10 19:13:38 rgb +# Added configure option to shut off no eroute passthrough. +# +# Revision 1.11 2000/03/16 07:09:46 rgb +# Hardcode PF_KEYv2 support. +# Disable IPSEC_ICMP by default. +# Remove DES config option from defaults file. +# +# Revision 1.10 2000/01/11 03:09:42 rgb +# Added a default of 'y' to PF_KEYv2 keying I/F. +# +# Revision 1.9 1999/05/08 21:23:12 rgb +# Added support for 2.2.x kernels. +# +# Revision 1.8 1999/04/06 04:54:25 rgb +# Fix/Add RCSID Id: and Log: bits to make PHMDs happy. This includes +# patch shell fixes. +# +# --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/deflate.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,1351 @@ +/* deflate.c -- compress data using the deflation algorithm + * Copyright (C) 1995-2002 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* + * ALGORITHM + * + * The "deflation" process depends on being able to identify portions + * of the input text which are identical to earlier input (within a + * sliding window trailing behind the input currently being processed). + * + * The most straightforward technique turns out to be the fastest for + * most input files: try all possible matches and select the longest. + * The key feature of this algorithm is that insertions into the string + * dictionary are very simple and thus fast, and deletions are avoided + * completely. Insertions are performed at each input character, whereas + * string matches are performed only when the previous match ends. So it + * is preferable to spend more time in matches to allow very fast string + * insertions and avoid deletions. The matching algorithm for small + * strings is inspired from that of Rabin & Karp. A brute force approach + * is used to find longer strings when a small match has been found. + * A similar algorithm is used in comic (by Jan-Mark Wams) and freeze + * (by Leonid Broukhis). + * A previous version of this file used a more sophisticated algorithm + * (by Fiala and Greene) which is guaranteed to run in linear amortized + * time, but has a larger average cost, uses more memory and is patented. + * However the F&G algorithm may be faster for some highly redundant + * files if the parameter max_chain_length (described below) is too large. + * + * ACKNOWLEDGEMENTS + * + * The idea of lazy evaluation of matches is due to Jan-Mark Wams, and + * I found it in 'freeze' written by Leonid Broukhis. + * Thanks to many people for bug reports and testing. + * + * REFERENCES + * + * Deutsch, L.P.,"DEFLATE Compressed Data Format Specification". + * Available in ftp://ds.internic.net/rfc/rfc1951.txt + * + * A description of the Rabin and Karp algorithm is given in the book + * "Algorithms" by R. Sedgewick, Addison-Wesley, p252. + * + * Fiala,E.R., and Greene,D.H. + * Data Compression with Finite Windows, Comm.ACM, 32,4 (1989) 490-595 + * + */ + +/* @(#) $Id: deflate.c,v 1.4 2004/07/10 07:48:37 mcr Exp $ */ + +#include "deflate.h" + +local const char deflate_copyright[] = + " deflate 1.1.4 Copyright 1995-2002 Jean-loup Gailly "; +/* + If you use the zlib library in a product, an acknowledgment is welcome + in the documentation of your product. If for some reason you cannot + include such an acknowledgment, I would appreciate that you keep this + copyright string in the executable of your product. + */ + +/* =========================================================================== + * Function prototypes. + */ +typedef enum { + need_more, /* block not completed, need more input or more output */ + block_done, /* block flush performed */ + finish_started, /* finish started, need only more output at next deflate */ + finish_done /* finish done, accept no more input or output */ +} block_state; + +typedef block_state (*compress_func) OF((deflate_state *s, int flush)); +/* Compression function. Returns the block state after the call. */ + +local void fill_window OF((deflate_state *s)); +local block_state deflate_stored OF((deflate_state *s, int flush)); +local block_state deflate_fast OF((deflate_state *s, int flush)); +local block_state deflate_slow OF((deflate_state *s, int flush)); +local void lm_init OF((deflate_state *s)); +local void putShortMSB OF((deflate_state *s, uInt b)); +local void flush_pending OF((z_streamp strm)); +local int read_buf OF((z_streamp strm, Bytef *buf, unsigned size)); +#ifdef ASMV + void match_init OF((void)); /* asm code initialization */ + uInt longest_match OF((deflate_state *s, IPos cur_match)); +#else +local uInt longest_match OF((deflate_state *s, IPos cur_match)); +#endif + +#ifdef DEBUG +local void check_match OF((deflate_state *s, IPos start, IPos match, + int length)); +#endif + +/* =========================================================================== + * Local data + */ + +#define NIL 0 +/* Tail of hash chains */ + +#ifndef TOO_FAR +# define TOO_FAR 4096 +#endif +/* Matches of length 3 are discarded if their distance exceeds TOO_FAR */ + +#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1) +/* Minimum amount of lookahead, except at the end of the input file. + * See deflate.c for comments about the MIN_MATCH+1. + */ + +/* Values for max_lazy_match, good_match and max_chain_length, depending on + * the desired pack level (0..9). The values given below have been tuned to + * exclude worst case performance for pathological files. Better values may be + * found for specific files. + */ +typedef struct config_s { + ush good_length; /* reduce lazy search above this match length */ + ush max_lazy; /* do not perform lazy search above this match length */ + ush nice_length; /* quit search above this match length */ + ush max_chain; + compress_func func; +} config; + +local const config configuration_table[10] = { +/* good lazy nice chain */ +/* 0 */ {0, 0, 0, 0, deflate_stored}, /* store only */ +/* 1 */ {4, 4, 8, 4, deflate_fast}, /* maximum speed, no lazy matches */ +/* 2 */ {4, 5, 16, 8, deflate_fast}, +/* 3 */ {4, 6, 32, 32, deflate_fast}, + +/* 4 */ {4, 4, 16, 16, deflate_slow}, /* lazy matches */ +/* 5 */ {8, 16, 32, 32, deflate_slow}, +/* 6 */ {8, 16, 128, 128, deflate_slow}, +/* 7 */ {8, 32, 128, 256, deflate_slow}, +/* 8 */ {32, 128, 258, 1024, deflate_slow}, +/* 9 */ {32, 258, 258, 4096, deflate_slow}}; /* maximum compression */ + +/* Note: the deflate() code requires max_lazy >= MIN_MATCH and max_chain >= 4 + * For deflate_fast() (levels <= 3) good is ignored and lazy has a different + * meaning. + */ + +#define EQUAL 0 +/* result of memcmp for equal strings */ + +struct static_tree_desc_s {int dummy;}; /* for buggy compilers */ + +/* =========================================================================== + * Update a hash value with the given input byte + * IN assertion: all calls to to UPDATE_HASH are made with consecutive + * input characters, so that a running hash key can be computed from the + * previous key instead of complete recalculation each time. + */ +#define UPDATE_HASH(s,h,c) (h = (((h)<hash_shift) ^ (c)) & s->hash_mask) + + +/* =========================================================================== + * Insert string str in the dictionary and set match_head to the previous head + * of the hash chain (the most recent string with same hash key). Return + * the previous length of the hash chain. + * If this file is compiled with -DFASTEST, the compression level is forced + * to 1, and no hash chains are maintained. + * IN assertion: all calls to to INSERT_STRING are made with consecutive + * input characters and the first MIN_MATCH bytes of str are valid + * (except for the last MIN_MATCH-1 bytes of the input file). + */ +#ifdef FASTEST +#define INSERT_STRING(s, str, match_head) \ + (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \ + match_head = s->head[s->ins_h], \ + s->head[s->ins_h] = (Pos)(str)) +#else +#define INSERT_STRING(s, str, match_head) \ + (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \ + s->prev[(str) & s->w_mask] = match_head = s->head[s->ins_h], \ + s->head[s->ins_h] = (Pos)(str)) +#endif + +/* =========================================================================== + * Initialize the hash table (avoiding 64K overflow for 16 bit systems). + * prev[] will be initialized on the fly. + */ +#define CLEAR_HASH(s) \ + s->head[s->hash_size-1] = NIL; \ + zmemzero((Bytef *)s->head, (unsigned)(s->hash_size-1)*sizeof(*s->head)); + +/* ========================================================================= */ +int ZEXPORT deflateInit_(strm, level, version, stream_size) + z_streamp strm; + int level; + const char *version; + int stream_size; +{ + return deflateInit2_(strm, level, Z_DEFLATED, MAX_WBITS, DEF_MEM_LEVEL, + Z_DEFAULT_STRATEGY, version, stream_size); + /* To do: ignore strm->next_in if we use it as window */ +} + +/* ========================================================================= */ +int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy, + version, stream_size) + z_streamp strm; + int level; + int method; + int windowBits; + int memLevel; + int strategy; + const char *version; + int stream_size; +{ + deflate_state *s; + int noheader = 0; + static const char* my_version = ZLIB_VERSION; + + ushf *overlay; + /* We overlay pending_buf and d_buf+l_buf. This works since the average + * output size for (length,distance) codes is <= 24 bits. + */ + + if (version == Z_NULL || version[0] != my_version[0] || + stream_size != sizeof(z_stream)) { + return Z_VERSION_ERROR; + } + if (strm == Z_NULL) return Z_STREAM_ERROR; + + strm->msg = Z_NULL; + if (strm->zalloc == Z_NULL) { + return Z_STREAM_ERROR; +/* strm->zalloc = zcalloc; + strm->opaque = (voidpf)0;*/ + } + if (strm->zfree == Z_NULL) return Z_STREAM_ERROR; /* strm->zfree = zcfree; */ + + if (level == Z_DEFAULT_COMPRESSION) level = 6; +#ifdef FASTEST + level = 1; +#endif + + if (windowBits < 0) { /* undocumented feature: suppress zlib header */ + noheader = 1; + windowBits = -windowBits; + } + if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method != Z_DEFLATED || + windowBits < 9 || windowBits > 15 || level < 0 || level > 9 || + strategy < 0 || strategy > Z_HUFFMAN_ONLY) { + return Z_STREAM_ERROR; + } + s = (deflate_state *) ZALLOC(strm, 1, sizeof(deflate_state)); + if (s == Z_NULL) return Z_MEM_ERROR; + strm->state = (struct internal_state FAR *)s; + s->strm = strm; + + s->noheader = noheader; + s->w_bits = windowBits; + s->w_size = 1 << s->w_bits; + s->w_mask = s->w_size - 1; + + s->hash_bits = memLevel + 7; + s->hash_size = 1 << s->hash_bits; + s->hash_mask = s->hash_size - 1; + s->hash_shift = ((s->hash_bits+MIN_MATCH-1)/MIN_MATCH); + + s->window = (Bytef *) ZALLOC(strm, s->w_size, 2*sizeof(Byte)); + s->prev = (Posf *) ZALLOC(strm, s->w_size, sizeof(Pos)); + s->head = (Posf *) ZALLOC(strm, s->hash_size, sizeof(Pos)); + + s->lit_bufsize = 1 << (memLevel + 6); /* 16K elements by default */ + + overlay = (ushf *) ZALLOC(strm, s->lit_bufsize, sizeof(ush)+2); + s->pending_buf = (uchf *) overlay; + s->pending_buf_size = (ulg)s->lit_bufsize * (sizeof(ush)+2L); + + if (s->window == Z_NULL || s->prev == Z_NULL || s->head == Z_NULL || + s->pending_buf == Z_NULL) { + strm->msg = ERR_MSG(Z_MEM_ERROR); + deflateEnd (strm); + return Z_MEM_ERROR; + } + s->d_buf = overlay + s->lit_bufsize/sizeof(ush); + s->l_buf = s->pending_buf + (1+sizeof(ush))*s->lit_bufsize; + + s->level = level; + s->strategy = strategy; + s->method = (Byte)method; + + return deflateReset(strm); +} + +/* ========================================================================= */ +int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength) + z_streamp strm; + const Bytef *dictionary; + uInt dictLength; +{ + deflate_state *s; + uInt length = dictLength; + uInt n; + IPos hash_head = 0; + + if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL || + strm->state->status != INIT_STATE) return Z_STREAM_ERROR; + + s = strm->state; + strm->adler = adler32(strm->adler, dictionary, dictLength); + + if (length < MIN_MATCH) return Z_OK; + if (length > MAX_DIST(s)) { + length = MAX_DIST(s); +#ifndef USE_DICT_HEAD + dictionary += dictLength - length; /* use the tail of the dictionary */ +#endif + } + zmemcpy(s->window, dictionary, length); + s->strstart = length; + s->block_start = (long)length; + + /* Insert all strings in the hash table (except for the last two bytes). + * s->lookahead stays null, so s->ins_h will be recomputed at the next + * call of fill_window. + */ + s->ins_h = s->window[0]; + UPDATE_HASH(s, s->ins_h, s->window[1]); + for (n = 0; n <= length - MIN_MATCH; n++) { + INSERT_STRING(s, n, hash_head); + } + if (hash_head) hash_head = 0; /* to make compiler happy */ + return Z_OK; +} + +/* ========================================================================= */ +int ZEXPORT deflateReset (strm) + z_streamp strm; +{ + deflate_state *s; + + if (strm == Z_NULL || strm->state == Z_NULL || + strm->zalloc == Z_NULL || strm->zfree == Z_NULL) return Z_STREAM_ERROR; + + strm->total_in = strm->total_out = 0; + strm->msg = Z_NULL; /* use zfree if we ever allocate msg dynamically */ + strm->data_type = Z_UNKNOWN; + + s = (deflate_state *)strm->state; + s->pending = 0; + s->pending_out = s->pending_buf; + + if (s->noheader < 0) { + s->noheader = 0; /* was set to -1 by deflate(..., Z_FINISH); */ + } + s->status = s->noheader ? BUSY_STATE : INIT_STATE; + strm->adler = 1; + s->last_flush = Z_NO_FLUSH; + + _tr_init(s); + lm_init(s); + + return Z_OK; +} + +/* ========================================================================= */ +int ZEXPORT deflateParams(strm, level, strategy) + z_streamp strm; + int level; + int strategy; +{ + deflate_state *s; + compress_func func; + int err = Z_OK; + + if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + s = strm->state; + + if (level == Z_DEFAULT_COMPRESSION) { + level = 6; + } + if (level < 0 || level > 9 || strategy < 0 || strategy > Z_HUFFMAN_ONLY) { + return Z_STREAM_ERROR; + } + func = configuration_table[s->level].func; + + if (func != configuration_table[level].func && strm->total_in != 0) { + /* Flush the last buffer: */ + err = deflate(strm, Z_PARTIAL_FLUSH); + } + if (s->level != level) { + s->level = level; + s->max_lazy_match = configuration_table[level].max_lazy; + s->good_match = configuration_table[level].good_length; + s->nice_match = configuration_table[level].nice_length; + s->max_chain_length = configuration_table[level].max_chain; + } + s->strategy = strategy; + return err; +} + +/* ========================================================================= + * Put a short in the pending buffer. The 16-bit value is put in MSB order. + * IN assertion: the stream state is correct and there is enough room in + * pending_buf. + */ +local void putShortMSB (s, b) + deflate_state *s; + uInt b; +{ + put_byte(s, (Byte)(b >> 8)); + put_byte(s, (Byte)(b & 0xff)); +} + +/* ========================================================================= + * Flush as much pending output as possible. All deflate() output goes + * through this function so some applications may wish to modify it + * to avoid allocating a large strm->next_out buffer and copying into it. + * (See also read_buf()). + */ +local void flush_pending(strm) + z_streamp strm; +{ + unsigned len = strm->state->pending; + + if (len > strm->avail_out) len = strm->avail_out; + if (len == 0) return; + + zmemcpy(strm->next_out, strm->state->pending_out, len); + strm->next_out += len; + strm->state->pending_out += len; + strm->total_out += len; + strm->avail_out -= len; + strm->state->pending -= len; + if (strm->state->pending == 0) { + strm->state->pending_out = strm->state->pending_buf; + } +} + +/* ========================================================================= */ +int ZEXPORT deflate (strm, flush) + z_streamp strm; + int flush; +{ + int old_flush; /* value of flush param for previous deflate call */ + deflate_state *s; + + if (strm == Z_NULL || strm->state == Z_NULL || + flush > Z_FINISH || flush < 0) { + return Z_STREAM_ERROR; + } + s = strm->state; + + if (strm->next_out == Z_NULL || + (strm->next_in == Z_NULL && strm->avail_in != 0) || + (s->status == FINISH_STATE && flush != Z_FINISH)) { + ERR_RETURN(strm, Z_STREAM_ERROR); + } + if (strm->avail_out == 0) ERR_RETURN(strm, Z_BUF_ERROR); + + s->strm = strm; /* just in case */ + old_flush = s->last_flush; + s->last_flush = flush; + + /* Write the zlib header */ + if (s->status == INIT_STATE) { + + uInt header = (Z_DEFLATED + ((s->w_bits-8)<<4)) << 8; + uInt level_flags = (s->level-1) >> 1; + + if (level_flags > 3) level_flags = 3; + header |= (level_flags << 6); + if (s->strstart != 0) header |= PRESET_DICT; + header += 31 - (header % 31); + + s->status = BUSY_STATE; + putShortMSB(s, header); + + /* Save the adler32 of the preset dictionary: */ + if (s->strstart != 0) { + putShortMSB(s, (uInt)(strm->adler >> 16)); + putShortMSB(s, (uInt)(strm->adler & 0xffff)); + } + strm->adler = 1L; + } + + /* Flush as much pending output as possible */ + if (s->pending != 0) { + flush_pending(strm); + if (strm->avail_out == 0) { + /* Since avail_out is 0, deflate will be called again with + * more output space, but possibly with both pending and + * avail_in equal to zero. There won't be anything to do, + * but this is not an error situation so make sure we + * return OK instead of BUF_ERROR at next call of deflate: + */ + s->last_flush = -1; + return Z_OK; + } + + /* Make sure there is something to do and avoid duplicate consecutive + * flushes. For repeated and useless calls with Z_FINISH, we keep + * returning Z_STREAM_END instead of Z_BUFF_ERROR. + */ + } else if (strm->avail_in == 0 && flush <= old_flush && + flush != Z_FINISH) { + ERR_RETURN(strm, Z_BUF_ERROR); + } + + /* User must not provide more input after the first FINISH: */ + if (s->status == FINISH_STATE && strm->avail_in != 0) { + ERR_RETURN(strm, Z_BUF_ERROR); + } + + /* Start a new block or continue the current one. + */ + if (strm->avail_in != 0 || s->lookahead != 0 || + (flush != Z_NO_FLUSH && s->status != FINISH_STATE)) { + block_state bstate; + + bstate = (*(configuration_table[s->level].func))(s, flush); + + if (bstate == finish_started || bstate == finish_done) { + s->status = FINISH_STATE; + } + if (bstate == need_more || bstate == finish_started) { + if (strm->avail_out == 0) { + s->last_flush = -1; /* avoid BUF_ERROR next call, see above */ + } + return Z_OK; + /* If flush != Z_NO_FLUSH && avail_out == 0, the next call + * of deflate should use the same flush parameter to make sure + * that the flush is complete. So we don't have to output an + * empty block here, this will be done at next call. This also + * ensures that for a very small output buffer, we emit at most + * one empty block. + */ + } + if (bstate == block_done) { + if (flush == Z_PARTIAL_FLUSH) { + _tr_align(s); + } else { /* FULL_FLUSH or SYNC_FLUSH */ + _tr_stored_block(s, (char*)0, 0L, 0); + /* For a full flush, this empty block will be recognized + * as a special marker by inflate_sync(). + */ + if (flush == Z_FULL_FLUSH) { + CLEAR_HASH(s); /* forget history */ + } + } + flush_pending(strm); + if (strm->avail_out == 0) { + s->last_flush = -1; /* avoid BUF_ERROR at next call, see above */ + return Z_OK; + } + } + } + Assert(strm->avail_out > 0, "bug2"); + + if (flush != Z_FINISH) return Z_OK; + if (s->noheader) return Z_STREAM_END; + + /* Write the zlib trailer (adler32) */ + putShortMSB(s, (uInt)(strm->adler >> 16)); + putShortMSB(s, (uInt)(strm->adler & 0xffff)); + flush_pending(strm); + /* If avail_out is zero, the application will call deflate again + * to flush the rest. + */ + s->noheader = -1; /* write the trailer only once! */ + return s->pending != 0 ? Z_OK : Z_STREAM_END; +} + +/* ========================================================================= */ +int ZEXPORT deflateEnd (strm) + z_streamp strm; +{ + int status; + + if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + + status = strm->state->status; + if (status != INIT_STATE && status != BUSY_STATE && + status != FINISH_STATE) { + return Z_STREAM_ERROR; + } + + /* Deallocate in reverse order of allocations: */ + TRY_FREE(strm, strm->state->pending_buf); + TRY_FREE(strm, strm->state->head); + TRY_FREE(strm, strm->state->prev); + TRY_FREE(strm, strm->state->window); + + ZFREE(strm, strm->state); + strm->state = Z_NULL; + + return status == BUSY_STATE ? Z_DATA_ERROR : Z_OK; +} + +/* ========================================================================= + * Copy the source state to the destination state. + * To simplify the source, this is not supported for 16-bit MSDOS (which + * doesn't have enough memory anyway to duplicate compression states). + */ +int ZEXPORT deflateCopy (dest, source) + z_streamp dest; + z_streamp source; +{ +#ifdef MAXSEG_64K + return Z_STREAM_ERROR; +#else + deflate_state *ds; + deflate_state *ss; + ushf *overlay; + + + if (source == Z_NULL || dest == Z_NULL || source->state == Z_NULL) { + return Z_STREAM_ERROR; + } + + ss = source->state; + + *dest = *source; + + ds = (deflate_state *) ZALLOC(dest, 1, sizeof(deflate_state)); + if (ds == Z_NULL) return Z_MEM_ERROR; + dest->state = (struct internal_state FAR *) ds; + *ds = *ss; + ds->strm = dest; + + ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte)); + ds->prev = (Posf *) ZALLOC(dest, ds->w_size, sizeof(Pos)); + ds->head = (Posf *) ZALLOC(dest, ds->hash_size, sizeof(Pos)); + overlay = (ushf *) ZALLOC(dest, ds->lit_bufsize, sizeof(ush)+2); + ds->pending_buf = (uchf *) overlay; + + if (ds->window == Z_NULL || ds->prev == Z_NULL || ds->head == Z_NULL || + ds->pending_buf == Z_NULL) { + deflateEnd (dest); + return Z_MEM_ERROR; + } + /* following zmemcpy do not work for 16-bit MSDOS */ + zmemcpy(ds->window, ss->window, ds->w_size * 2 * sizeof(Byte)); + zmemcpy(ds->prev, ss->prev, ds->w_size * sizeof(Pos)); + zmemcpy(ds->head, ss->head, ds->hash_size * sizeof(Pos)); + zmemcpy(ds->pending_buf, ss->pending_buf, (uInt)ds->pending_buf_size); + + ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf); + ds->d_buf = overlay + ds->lit_bufsize/sizeof(ush); + ds->l_buf = ds->pending_buf + (1+sizeof(ush))*ds->lit_bufsize; + + ds->l_desc.dyn_tree = ds->dyn_ltree; + ds->d_desc.dyn_tree = ds->dyn_dtree; + ds->bl_desc.dyn_tree = ds->bl_tree; + + return Z_OK; +#endif +} + +/* =========================================================================== + * Read a new buffer from the current input stream, update the adler32 + * and total number of bytes read. All deflate() input goes through + * this function so some applications may wish to modify it to avoid + * allocating a large strm->next_in buffer and copying from it. + * (See also flush_pending()). + */ +local int read_buf(strm, buf, size) + z_streamp strm; + Bytef *buf; + unsigned size; +{ + unsigned len = strm->avail_in; + + if (len > size) len = size; + if (len == 0) return 0; + + strm->avail_in -= len; + + if (!strm->state->noheader) { + strm->adler = adler32(strm->adler, strm->next_in, len); + } + zmemcpy(buf, strm->next_in, len); + strm->next_in += len; + strm->total_in += len; + + return (int)len; +} + +/* =========================================================================== + * Initialize the "longest match" routines for a new zlib stream + */ +local void lm_init (s) + deflate_state *s; +{ + s->window_size = (ulg)2L*s->w_size; + + CLEAR_HASH(s); + + /* Set the default configuration parameters: + */ + s->max_lazy_match = configuration_table[s->level].max_lazy; + s->good_match = configuration_table[s->level].good_length; + s->nice_match = configuration_table[s->level].nice_length; + s->max_chain_length = configuration_table[s->level].max_chain; + + s->strstart = 0; + s->block_start = 0L; + s->lookahead = 0; + s->match_length = s->prev_length = MIN_MATCH-1; + s->match_available = 0; + s->ins_h = 0; +#ifdef ASMV + match_init(); /* initialize the asm code */ +#endif +} + +/* =========================================================================== + * Set match_start to the longest match starting at the given string and + * return its length. Matches shorter or equal to prev_length are discarded, + * in which case the result is equal to prev_length and match_start is + * garbage. + * IN assertions: cur_match is the head of the hash chain for the current + * string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1 + * OUT assertion: the match length is not greater than s->lookahead. + */ +#ifndef ASMV +/* For 80x86 and 680x0, an optimized version will be provided in match.asm or + * match.S. The code will be functionally equivalent. + */ +#ifndef FASTEST +local uInt longest_match(s, cur_match) + deflate_state *s; + IPos cur_match; /* current match */ +{ + unsigned chain_length = s->max_chain_length;/* max hash chain length */ + register Bytef *scan = s->window + s->strstart; /* current string */ + register Bytef *match; /* matched string */ + register int len; /* length of current match */ + int best_len = s->prev_length; /* best match length so far */ + int nice_match = s->nice_match; /* stop if match long enough */ + IPos limit = s->strstart > (IPos)MAX_DIST(s) ? + s->strstart - (IPos)MAX_DIST(s) : NIL; + /* Stop when cur_match becomes <= limit. To simplify the code, + * we prevent matches with the string of window index 0. + */ + Posf *prev = s->prev; + uInt wmask = s->w_mask; + +#ifdef UNALIGNED_OK + /* Compare two bytes at a time. Note: this is not always beneficial. + * Try with and without -DUNALIGNED_OK to check. + */ + register Bytef *strend = s->window + s->strstart + MAX_MATCH - 1; + register ush scan_start = *(ushf*)scan; + register ush scan_end = *(ushf*)(scan+best_len-1); +#else + register Bytef *strend = s->window + s->strstart + MAX_MATCH; + register Byte scan_end1 = scan[best_len-1]; + register Byte scan_end = scan[best_len]; +#endif + + /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16. + * It is easy to get rid of this optimization if necessary. + */ + Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever"); + + /* Do not waste too much time if we already have a good match: */ + if (s->prev_length >= s->good_match) { + chain_length >>= 2; + } + /* Do not look for matches beyond the end of the input. This is necessary + * to make deflate deterministic. + */ + if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; + + Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead"); + + do { + Assert(cur_match < s->strstart, "no future"); + match = s->window + cur_match; + + /* Skip to next match if the match length cannot increase + * or if the match length is less than 2: + */ +#if (defined(UNALIGNED_OK) && MAX_MATCH == 258) + /* This code assumes sizeof(unsigned short) == 2. Do not use + * UNALIGNED_OK if your compiler uses a different size. + */ + if (*(ushf*)(match+best_len-1) != scan_end || + *(ushf*)match != scan_start) continue; + + /* It is not necessary to compare scan[2] and match[2] since they are + * always equal when the other bytes match, given that the hash keys + * are equal and that HASH_BITS >= 8. Compare 2 bytes at a time at + * strstart+3, +5, ... up to strstart+257. We check for insufficient + * lookahead only every 4th comparison; the 128th check will be made + * at strstart+257. If MAX_MATCH-2 is not a multiple of 8, it is + * necessary to put more guard bytes at the end of the window, or + * to check more often for insufficient lookahead. + */ + Assert(scan[2] == match[2], "scan[2]?"); + scan++, match++; + do { + } while (*(ushf*)(scan+=2) == *(ushf*)(match+=2) && + *(ushf*)(scan+=2) == *(ushf*)(match+=2) && + *(ushf*)(scan+=2) == *(ushf*)(match+=2) && + *(ushf*)(scan+=2) == *(ushf*)(match+=2) && + scan < strend); + /* The funny "do {}" generates better code on most compilers */ + + /* Here, scan <= window+strstart+257 */ + Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); + if (*scan == *match) scan++; + + len = (MAX_MATCH - 1) - (int)(strend-scan); + scan = strend - (MAX_MATCH-1); + +#else /* UNALIGNED_OK */ + + if (match[best_len] != scan_end || + match[best_len-1] != scan_end1 || + *match != *scan || + *++match != scan[1]) continue; + + /* The check at best_len-1 can be removed because it will be made + * again later. (This heuristic is not always a win.) + * It is not necessary to compare scan[2] and match[2] since they + * are always equal when the other bytes match, given that + * the hash keys are equal and that HASH_BITS >= 8. + */ + scan += 2, match++; + Assert(*scan == *match, "match[2]?"); + + /* We check for insufficient lookahead only every 8th comparison; + * the 256th check will be made at strstart+258. + */ + do { + } while (*++scan == *++match && *++scan == *++match && + *++scan == *++match && *++scan == *++match && + *++scan == *++match && *++scan == *++match && + *++scan == *++match && *++scan == *++match && + scan < strend); + + Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); + + len = MAX_MATCH - (int)(strend - scan); + scan = strend - MAX_MATCH; + +#endif /* UNALIGNED_OK */ + + if (len > best_len) { + s->match_start = cur_match; + best_len = len; + if (len >= nice_match) break; +#ifdef UNALIGNED_OK + scan_end = *(ushf*)(scan+best_len-1); +#else + scan_end1 = scan[best_len-1]; + scan_end = scan[best_len]; +#endif + } + } while ((cur_match = prev[cur_match & wmask]) > limit + && --chain_length != 0); + + if ((uInt)best_len <= s->lookahead) return (uInt)best_len; + return s->lookahead; +} + +#else /* FASTEST */ +/* --------------------------------------------------------------------------- + * Optimized version for level == 1 only + */ +local uInt longest_match(s, cur_match) + deflate_state *s; + IPos cur_match; /* current match */ +{ + register Bytef *scan = s->window + s->strstart; /* current string */ + register Bytef *match; /* matched string */ + register int len; /* length of current match */ + register Bytef *strend = s->window + s->strstart + MAX_MATCH; + + /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16. + * It is easy to get rid of this optimization if necessary. + */ + Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever"); + + Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead"); + + Assert(cur_match < s->strstart, "no future"); + + match = s->window + cur_match; + + /* Return failure if the match length is less than 2: + */ + if (match[0] != scan[0] || match[1] != scan[1]) return MIN_MATCH-1; + + /* The check at best_len-1 can be removed because it will be made + * again later. (This heuristic is not always a win.) + * It is not necessary to compare scan[2] and match[2] since they + * are always equal when the other bytes match, given that + * the hash keys are equal and that HASH_BITS >= 8. + */ + scan += 2, match += 2; + Assert(*scan == *match, "match[2]?"); + + /* We check for insufficient lookahead only every 8th comparison; + * the 256th check will be made at strstart+258. + */ + do { + } while (*++scan == *++match && *++scan == *++match && + *++scan == *++match && *++scan == *++match && + *++scan == *++match && *++scan == *++match && + *++scan == *++match && *++scan == *++match && + scan < strend); + + Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); + + len = MAX_MATCH - (int)(strend - scan); + + if (len < MIN_MATCH) return MIN_MATCH - 1; + + s->match_start = cur_match; + return len <= s->lookahead ? len : s->lookahead; +} +#endif /* FASTEST */ +#endif /* ASMV */ + +#ifdef DEBUG +/* =========================================================================== + * Check that the match at match_start is indeed a match. + */ +local void check_match(s, start, match, length) + deflate_state *s; + IPos start, match; + int length; +{ + /* check that the match is indeed a match */ + if (zmemcmp(s->window + match, + s->window + start, length) != EQUAL) { + fprintf(stderr, " start %u, match %u, length %d\n", + start, match, length); + do { + fprintf(stderr, "%c%c", s->window[match++], s->window[start++]); + } while (--length != 0); + z_error("invalid match"); + } + if (z_verbose > 1) { + fprintf(stderr,"\\[%d,%d]", start-match, length); + do { putc(s->window[start++], stderr); } while (--length != 0); + } +} +#else +# define check_match(s, start, match, length) +#endif + +/* =========================================================================== + * Fill the window when the lookahead becomes insufficient. + * Updates strstart and lookahead. + * + * IN assertion: lookahead < MIN_LOOKAHEAD + * OUT assertions: strstart <= window_size-MIN_LOOKAHEAD + * At least one byte has been read, or avail_in == 0; reads are + * performed for at least two bytes (required for the zip translate_eol + * option -- not supported here). + */ +local void fill_window(s) + deflate_state *s; +{ + register unsigned n, m; + register Posf *p; + unsigned more; /* Amount of free space at the end of the window. */ + uInt wsize = s->w_size; + + do { + more = (unsigned)(s->window_size -(ulg)s->lookahead -(ulg)s->strstart); + + /* Deal with !@#$% 64K limit: */ + if (more == 0 && s->strstart == 0 && s->lookahead == 0) { + more = wsize; + + } else if (more == (unsigned)(-1)) { + /* Very unlikely, but possible on 16 bit machine if strstart == 0 + * and lookahead == 1 (input done one byte at time) + */ + more--; + + /* If the window is almost full and there is insufficient lookahead, + * move the upper half to the lower one to make room in the upper half. + */ + } else if (s->strstart >= wsize+MAX_DIST(s)) { + + zmemcpy(s->window, s->window+wsize, (unsigned)wsize); + s->match_start -= wsize; + s->strstart -= wsize; /* we now have strstart >= MAX_DIST */ + s->block_start -= (long) wsize; + + /* Slide the hash table (could be avoided with 32 bit values + at the expense of memory usage). We slide even when level == 0 + to keep the hash table consistent if we switch back to level > 0 + later. (Using level 0 permanently is not an optimal usage of + zlib, so we don't care about this pathological case.) + */ + n = s->hash_size; + p = &s->head[n]; + do { + m = *--p; + *p = (Pos)(m >= wsize ? m-wsize : NIL); + } while (--n); + + n = wsize; +#ifndef FASTEST + p = &s->prev[n]; + do { + m = *--p; + *p = (Pos)(m >= wsize ? m-wsize : NIL); + /* If n is not on any hash chain, prev[n] is garbage but + * its value will never be used. + */ + } while (--n); +#endif + more += wsize; + } + if (s->strm->avail_in == 0) return; + + /* If there was no sliding: + * strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 && + * more == window_size - lookahead - strstart + * => more >= window_size - (MIN_LOOKAHEAD-1 + WSIZE + MAX_DIST-1) + * => more >= window_size - 2*WSIZE + 2 + * In the BIG_MEM or MMAP case (not yet supported), + * window_size == input_size + MIN_LOOKAHEAD && + * strstart + s->lookahead <= input_size => more >= MIN_LOOKAHEAD. + * Otherwise, window_size == 2*WSIZE so more >= 2. + * If there was sliding, more >= WSIZE. So in all cases, more >= 2. + */ + Assert(more >= 2, "more < 2"); + + n = read_buf(s->strm, s->window + s->strstart + s->lookahead, more); + s->lookahead += n; + + /* Initialize the hash value now that we have some input: */ + if (s->lookahead >= MIN_MATCH) { + s->ins_h = s->window[s->strstart]; + UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]); +#if MIN_MATCH != 3 + Call UPDATE_HASH() MIN_MATCH-3 more times +#endif + } + /* If the whole input has less than MIN_MATCH bytes, ins_h is garbage, + * but this is not important since only literal bytes will be emitted. + */ + + } while (s->lookahead < MIN_LOOKAHEAD && s->strm->avail_in != 0); +} + +/* =========================================================================== + * Flush the current block, with given end-of-file flag. + * IN assertion: strstart is set to the end of the current match. + */ +#define FLUSH_BLOCK_ONLY(s, eof) { \ + _tr_flush_block(s, (s->block_start >= 0L ? \ + (charf *)&s->window[(unsigned)s->block_start] : \ + (charf *)Z_NULL), \ + (ulg)((long)s->strstart - s->block_start), \ + (eof)); \ + s->block_start = s->strstart; \ + flush_pending(s->strm); \ + Tracev((stderr,"[FLUSH]")); \ +} + +/* Same but force premature exit if necessary. */ +#define FLUSH_BLOCK(s, eof) { \ + FLUSH_BLOCK_ONLY(s, eof); \ + if (s->strm->avail_out == 0) return (eof) ? finish_started : need_more; \ +} + +/* =========================================================================== + * Copy without compression as much as possible from the input stream, return + * the current block state. + * This function does not insert new strings in the dictionary since + * uncompressible data is probably not useful. This function is used + * only for the level=0 compression option. + * NOTE: this function should be optimized to avoid extra copying from + * window to pending_buf. + */ +local block_state deflate_stored(s, flush) + deflate_state *s; + int flush; +{ + /* Stored blocks are limited to 0xffff bytes, pending_buf is limited + * to pending_buf_size, and each stored block has a 5 byte header: + */ + ulg max_block_size = 0xffff; + ulg max_start; + + if (max_block_size > s->pending_buf_size - 5) { + max_block_size = s->pending_buf_size - 5; + } + + /* Copy as much as possible from input to output: */ + for (;;) { + /* Fill the window as much as possible: */ + if (s->lookahead <= 1) { + + Assert(s->strstart < s->w_size+MAX_DIST(s) || + s->block_start >= (long)s->w_size, "slide too late"); + + fill_window(s); + if (s->lookahead == 0 && flush == Z_NO_FLUSH) return need_more; + + if (s->lookahead == 0) break; /* flush the current block */ + } + Assert(s->block_start >= 0L, "block gone"); + + s->strstart += s->lookahead; + s->lookahead = 0; + + /* Emit a stored block if pending_buf will be full: */ + max_start = s->block_start + max_block_size; + if (s->strstart == 0 || (ulg)s->strstart >= max_start) { + /* strstart == 0 is possible when wraparound on 16-bit machine */ + s->lookahead = (uInt)(s->strstart - max_start); + s->strstart = (uInt)max_start; + FLUSH_BLOCK(s, 0); + } + /* Flush if we may have to slide, otherwise block_start may become + * negative and the data will be gone: + */ + if (s->strstart - (uInt)s->block_start >= MAX_DIST(s)) { + FLUSH_BLOCK(s, 0); + } + } + FLUSH_BLOCK(s, flush == Z_FINISH); + return flush == Z_FINISH ? finish_done : block_done; +} + +/* =========================================================================== + * Compress as much as possible from the input stream, return the current + * block state. + * This function does not perform lazy evaluation of matches and inserts + * new strings in the dictionary only for unmatched strings or for short + * matches. It is used only for the fast compression options. + */ +local block_state deflate_fast(s, flush) + deflate_state *s; + int flush; +{ + IPos hash_head = NIL; /* head of the hash chain */ + int bflush; /* set if current block must be flushed */ + + for (;;) { + /* Make sure that we always have enough lookahead, except + * at the end of the input file. We need MAX_MATCH bytes + * for the next match, plus MIN_MATCH bytes to insert the + * string following the next match. + */ + if (s->lookahead < MIN_LOOKAHEAD) { + fill_window(s); + if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) { + return need_more; + } + if (s->lookahead == 0) break; /* flush the current block */ + } + + /* Insert the string window[strstart .. strstart+2] in the + * dictionary, and set hash_head to the head of the hash chain: + */ + if (s->lookahead >= MIN_MATCH) { + INSERT_STRING(s, s->strstart, hash_head); + } + + /* Find the longest match, discarding those <= prev_length. + * At this point we have always match_length < MIN_MATCH + */ + if (hash_head != NIL && s->strstart - hash_head <= MAX_DIST(s)) { + /* To simplify the code, we prevent matches with the string + * of window index 0 (in particular we have to avoid a match + * of the string with itself at the start of the input file). + */ + if (s->strategy != Z_HUFFMAN_ONLY) { + s->match_length = longest_match (s, hash_head); + } + /* longest_match() sets match_start */ + } + if (s->match_length >= MIN_MATCH) { + check_match(s, s->strstart, s->match_start, s->match_length); + + _tr_tally_dist(s, s->strstart - s->match_start, + s->match_length - MIN_MATCH, bflush); + + s->lookahead -= s->match_length; + + /* Insert new strings in the hash table only if the match length + * is not too large. This saves time but degrades compression. + */ +#ifndef FASTEST + if (s->match_length <= s->max_insert_length && + s->lookahead >= MIN_MATCH) { + s->match_length--; /* string at strstart already in hash table */ + do { + s->strstart++; + INSERT_STRING(s, s->strstart, hash_head); + /* strstart never exceeds WSIZE-MAX_MATCH, so there are + * always MIN_MATCH bytes ahead. + */ + } while (--s->match_length != 0); + s->strstart++; + } else +#endif + { + s->strstart += s->match_length; + s->match_length = 0; + s->ins_h = s->window[s->strstart]; + UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]); +#if MIN_MATCH != 3 + Call UPDATE_HASH() MIN_MATCH-3 more times +#endif + /* If lookahead < MIN_MATCH, ins_h is garbage, but it does not + * matter since it will be recomputed at next deflate call. + */ + } + } else { + /* No match, output a literal byte */ + Tracevv((stderr,"%c", s->window[s->strstart])); + _tr_tally_lit (s, s->window[s->strstart], bflush); + s->lookahead--; + s->strstart++; + } + if (bflush) FLUSH_BLOCK(s, 0); + } + FLUSH_BLOCK(s, flush == Z_FINISH); + return flush == Z_FINISH ? finish_done : block_done; +} + +/* =========================================================================== + * Same as above, but achieves better compression. We use a lazy + * evaluation for matches: a match is finally adopted only if there is + * no better match at the next window position. + */ +local block_state deflate_slow(s, flush) + deflate_state *s; + int flush; +{ + IPos hash_head = NIL; /* head of hash chain */ + int bflush; /* set if current block must be flushed */ + + /* Process the input block. */ + for (;;) { + /* Make sure that we always have enough lookahead, except + * at the end of the input file. We need MAX_MATCH bytes + * for the next match, plus MIN_MATCH bytes to insert the + * string following the next match. + */ + if (s->lookahead < MIN_LOOKAHEAD) { + fill_window(s); + if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) { + return need_more; + } + if (s->lookahead == 0) break; /* flush the current block */ + } + + /* Insert the string window[strstart .. strstart+2] in the + * dictionary, and set hash_head to the head of the hash chain: + */ + if (s->lookahead >= MIN_MATCH) { + INSERT_STRING(s, s->strstart, hash_head); + } + + /* Find the longest match, discarding those <= prev_length. + */ + s->prev_length = s->match_length, s->prev_match = s->match_start; + s->match_length = MIN_MATCH-1; + + if (hash_head != NIL && s->prev_length < s->max_lazy_match && + s->strstart - hash_head <= MAX_DIST(s)) { + /* To simplify the code, we prevent matches with the string + * of window index 0 (in particular we have to avoid a match + * of the string with itself at the start of the input file). + */ + if (s->strategy != Z_HUFFMAN_ONLY) { + s->match_length = longest_match (s, hash_head); + } + /* longest_match() sets match_start */ + + if (s->match_length <= 5 && (s->strategy == Z_FILTERED || + (s->match_length == MIN_MATCH && + s->strstart - s->match_start > TOO_FAR))) { + + /* If prev_match is also MIN_MATCH, match_start is garbage + * but we will ignore the current match anyway. + */ + s->match_length = MIN_MATCH-1; + } + } + /* If there was a match at the previous step and the current + * match is not better, output the previous match: + */ + if (s->prev_length >= MIN_MATCH && s->match_length <= s->prev_length) { + uInt max_insert = s->strstart + s->lookahead - MIN_MATCH; + /* Do not insert strings in hash table beyond this. */ + + check_match(s, s->strstart-1, s->prev_match, s->prev_length); + + _tr_tally_dist(s, s->strstart -1 - s->prev_match, + s->prev_length - MIN_MATCH, bflush); + + /* Insert in hash table all strings up to the end of the match. + * strstart-1 and strstart are already inserted. If there is not + * enough lookahead, the last two strings are not inserted in + * the hash table. + */ + s->lookahead -= s->prev_length-1; + s->prev_length -= 2; + do { + if (++s->strstart <= max_insert) { + INSERT_STRING(s, s->strstart, hash_head); + } + } while (--s->prev_length != 0); + s->match_available = 0; + s->match_length = MIN_MATCH-1; + s->strstart++; + + if (bflush) FLUSH_BLOCK(s, 0); + + } else if (s->match_available) { + /* If there was no match at the previous position, output a + * single literal. If there was a match but the current match + * is longer, truncate the previous match to a single literal. + */ + Tracevv((stderr,"%c", s->window[s->strstart-1])); + _tr_tally_lit(s, s->window[s->strstart-1], bflush); + if (bflush) { + FLUSH_BLOCK_ONLY(s, 0); + } + s->strstart++; + s->lookahead--; + if (s->strm->avail_out == 0) return need_more; + } else { + /* There is no previous match to compare with, wait for + * the next step to decide. + */ + s->match_available = 1; + s->strstart++; + s->lookahead--; + } + } + Assert (flush != Z_NO_FLUSH, "no flush?"); + if (s->match_available) { + Tracevv((stderr,"%c", s->window[s->strstart-1])); + _tr_tally_lit(s, s->window[s->strstart-1], bflush); + s->match_available = 0; + } + FLUSH_BLOCK(s, flush == Z_FINISH); + return flush == Z_FINISH ? finish_done : block_done; +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/deflate.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,318 @@ +/* deflate.h -- internal compression state + * Copyright (C) 1995-2002 Jean-loup Gailly + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +/* @(#) $Id: deflate.h,v 1.5 2004/07/10 07:48:38 mcr Exp $ */ + +#ifndef _DEFLATE_H +#define _DEFLATE_H + +#include "zlib/zutil.h" + +/* =========================================================================== + * Internal compression state. + */ + +#define LENGTH_CODES 29 +/* number of length codes, not counting the special END_BLOCK code */ + +#define LITERALS 256 +/* number of literal bytes 0..255 */ + +#define L_CODES (LITERALS+1+LENGTH_CODES) +/* number of Literal or Length codes, including the END_BLOCK code */ + +#define D_CODES 30 +/* number of distance codes */ + +#define BL_CODES 19 +/* number of codes used to transfer the bit lengths */ + +#define HEAP_SIZE (2*L_CODES+1) +/* maximum heap size */ + +#define MAX_BITS 15 +/* All codes must not exceed MAX_BITS bits */ + +#define INIT_STATE 42 +#define BUSY_STATE 113 +#define FINISH_STATE 666 +/* Stream status */ + + +/* Data structure describing a single value and its code string. */ +typedef struct ct_data_s { + union { + ush freq; /* frequency count */ + ush code; /* bit string */ + } fc; + union { + ush dad; /* father node in Huffman tree */ + ush len; /* length of bit string */ + } dl; +} FAR ct_data; + +#define Freq fc.freq +#define Code fc.code +#define Dad dl.dad +#define Len dl.len + +typedef struct static_tree_desc_s static_tree_desc; + +typedef struct tree_desc_s { + ct_data *dyn_tree; /* the dynamic tree */ + int max_code; /* largest code with non zero frequency */ + static_tree_desc *stat_desc; /* the corresponding static tree */ +} FAR tree_desc; + +typedef ush Pos; +typedef Pos FAR Posf; +typedef unsigned IPos; + +/* A Pos is an index in the character window. We use short instead of int to + * save space in the various tables. IPos is used only for parameter passing. + */ + +typedef struct internal_state { + z_streamp strm; /* pointer back to this zlib stream */ + int status; /* as the name implies */ + Bytef *pending_buf; /* output still pending */ + ulg pending_buf_size; /* size of pending_buf */ + Bytef *pending_out; /* next pending byte to output to the stream */ + int pending; /* nb of bytes in the pending buffer */ + int noheader; /* suppress zlib header and adler32 */ + Byte data_type; /* UNKNOWN, BINARY or ASCII */ + Byte method; /* STORED (for zip only) or DEFLATED */ + int last_flush; /* value of flush param for previous deflate call */ + + /* used by deflate.c: */ + + uInt w_size; /* LZ77 window size (32K by default) */ + uInt w_bits; /* log2(w_size) (8..16) */ + uInt w_mask; /* w_size - 1 */ + + Bytef *window; + /* Sliding window. Input bytes are read into the second half of the window, + * and move to the first half later to keep a dictionary of at least wSize + * bytes. With this organization, matches are limited to a distance of + * wSize-MAX_MATCH bytes, but this ensures that IO is always + * performed with a length multiple of the block size. Also, it limits + * the window size to 64K, which is quite useful on MSDOS. + * To do: use the user input buffer as sliding window. + */ + + ulg window_size; + /* Actual size of window: 2*wSize, except when the user input buffer + * is directly used as sliding window. + */ + + Posf *prev; + /* Link to older string with same hash index. To limit the size of this + * array to 64K, this link is maintained only for the last 32K strings. + * An index in this array is thus a window index modulo 32K. + */ + + Posf *head; /* Heads of the hash chains or NIL. */ + + uInt ins_h; /* hash index of string to be inserted */ + uInt hash_size; /* number of elements in hash table */ + uInt hash_bits; /* log2(hash_size) */ + uInt hash_mask; /* hash_size-1 */ + + uInt hash_shift; + /* Number of bits by which ins_h must be shifted at each input + * step. It must be such that after MIN_MATCH steps, the oldest + * byte no longer takes part in the hash key, that is: + * hash_shift * MIN_MATCH >= hash_bits + */ + + long block_start; + /* Window position at the beginning of the current output block. Gets + * negative when the window is moved backwards. + */ + + uInt match_length; /* length of best match */ + IPos prev_match; /* previous match */ + int match_available; /* set if previous match exists */ + uInt strstart; /* start of string to insert */ + uInt match_start; /* start of matching string */ + uInt lookahead; /* number of valid bytes ahead in window */ + + uInt prev_length; + /* Length of the best match at previous step. Matches not greater than this + * are discarded. This is used in the lazy match evaluation. + */ + + uInt max_chain_length; + /* To speed up deflation, hash chains are never searched beyond this + * length. A higher limit improves compression ratio but degrades the + * speed. + */ + + uInt max_lazy_match; + /* Attempt to find a better match only when the current match is strictly + * smaller than this value. This mechanism is used only for compression + * levels >= 4. + */ +# define max_insert_length max_lazy_match + /* Insert new strings in the hash table only if the match length is not + * greater than this length. This saves time but degrades compression. + * max_insert_length is used only for compression levels <= 3. + */ + + int level; /* compression level (1..9) */ + int strategy; /* favor or force Huffman coding*/ + + uInt good_match; + /* Use a faster search when the previous match is longer than this */ + + int nice_match; /* Stop searching when current match exceeds this */ + + /* used by trees.c: */ + /* Didn't use ct_data typedef below to supress compiler warning */ + struct ct_data_s dyn_ltree[HEAP_SIZE]; /* literal and length tree */ + struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */ + struct ct_data_s bl_tree[2*BL_CODES+1]; /* Huffman tree for bit lengths */ + + struct tree_desc_s l_desc; /* desc. for literal tree */ + struct tree_desc_s d_desc; /* desc. for distance tree */ + struct tree_desc_s bl_desc; /* desc. for bit length tree */ + + ush bl_count[MAX_BITS+1]; + /* number of codes at each bit length for an optimal tree */ + + int heap[2*L_CODES+1]; /* heap used to build the Huffman trees */ + int heap_len; /* number of elements in the heap */ + int heap_max; /* element of largest frequency */ + /* The sons of heap[n] are heap[2*n] and heap[2*n+1]. heap[0] is not used. + * The same heap array is used to build all trees. + */ + + uch depth[2*L_CODES+1]; + /* Depth of each subtree used as tie breaker for trees of equal frequency + */ + + uchf *l_buf; /* buffer for literals or lengths */ + + uInt lit_bufsize; + /* Size of match buffer for literals/lengths. There are 4 reasons for + * limiting lit_bufsize to 64K: + * - frequencies can be kept in 16 bit counters + * - if compression is not successful for the first block, all input + * data is still in the window so we can still emit a stored block even + * when input comes from standard input. (This can also be done for + * all blocks if lit_bufsize is not greater than 32K.) + * - if compression is not successful for a file smaller than 64K, we can + * even emit a stored file instead of a stored block (saving 5 bytes). + * This is applicable only for zip (not gzip or zlib). + * - creating new Huffman trees less frequently may not provide fast + * adaptation to changes in the input data statistics. (Take for + * example a binary file with poorly compressible code followed by + * a highly compressible string table.) Smaller buffer sizes give + * fast adaptation but have of course the overhead of transmitting + * trees more frequently. + * - I can't count above 4 + */ + + uInt last_lit; /* running index in l_buf */ + + ushf *d_buf; + /* Buffer for distances. To simplify the code, d_buf and l_buf have + * the same number of elements. To use different lengths, an extra flag + * array would be necessary. + */ + + ulg opt_len; /* bit length of current block with optimal trees */ + ulg static_len; /* bit length of current block with static trees */ + uInt matches; /* number of string matches in current block */ + int last_eob_len; /* bit length of EOB code for last block */ + +#ifdef DEBUG + ulg compressed_len; /* total bit length of compressed file mod 2^32 */ + ulg bits_sent; /* bit length of compressed data sent mod 2^32 */ +#endif + + ush bi_buf; + /* Output buffer. bits are inserted starting at the bottom (least + * significant bits). + */ + int bi_valid; + /* Number of valid bits in bi_buf. All bits above the last valid bit + * are always zero. + */ + +} FAR deflate_state; + +/* Output a byte on the stream. + * IN assertion: there is enough room in pending_buf. + */ +#define put_byte(s, c) {s->pending_buf[s->pending++] = (c);} + + +#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1) +/* Minimum amount of lookahead, except at the end of the input file. + * See deflate.c for comments about the MIN_MATCH+1. + */ + +#define MAX_DIST(s) ((s)->w_size-MIN_LOOKAHEAD) +/* In order to simplify the code, particularly on 16 bit machines, match + * distances are limited to MAX_DIST instead of WSIZE. + */ + + /* in trees.c */ +void _tr_init OF((deflate_state *s)); +int _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc)); +void _tr_flush_block OF((deflate_state *s, charf *buf, ulg stored_len, + int eof)); +void _tr_align OF((deflate_state *s)); +void _tr_stored_block OF((deflate_state *s, charf *buf, ulg stored_len, + int eof)); + +#define d_code(dist) \ + ((dist) < 256 ? _dist_code[dist] : _dist_code[256+((dist)>>7)]) +/* Mapping from a distance to a distance code. dist is the distance - 1 and + * must not have side effects. _dist_code[256] and _dist_code[257] are never + * used. + */ + +#ifndef DEBUG +/* Inline versions of _tr_tally for speed: */ + +#if defined(GEN_TREES_H) || !defined(STDC) + extern uch _length_code[]; + extern uch _dist_code[]; +#else + extern const uch _length_code[]; + extern const uch _dist_code[]; +#endif + +# define _tr_tally_lit(s, c, flush) \ + { uch cc = (c); \ + s->d_buf[s->last_lit] = 0; \ + s->l_buf[s->last_lit++] = cc; \ + s->dyn_ltree[cc].Freq++; \ + flush = (s->last_lit == s->lit_bufsize-1); \ + } +# define _tr_tally_dist(s, distance, length, flush) \ + { uch len = (length); \ + ush dist = (distance); \ + s->d_buf[s->last_lit] = dist; \ + s->l_buf[s->last_lit++] = len; \ + dist--; \ + s->dyn_ltree[_length_code[len]+LITERALS+1].Freq++; \ + s->dyn_dtree[d_code(dist)].Freq++; \ + flush = (s->last_lit == s->lit_bufsize-1); \ + } +#else +# define _tr_tally_lit(s, c, flush) flush = _tr_tally(s, 0, c) +# define _tr_tally_dist(s, distance, length, flush) \ + flush = _tr_tally(s, distance, length) +#endif + +#endif /* _DEFLATE_H */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/des/COPYRIGHT Mon Feb 9 13:51:03 2004 @@ -0,0 +1,50 @@ +Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) +All rights reserved. + +This package is an DES implementation written by Eric Young (eay@cryptsoft.com). +The implementation was written so as to conform with MIT's libdes. + +This library is free for commercial and non-commercial use as long as +the following conditions are aheared to. The following conditions +apply to all code found in this distribution. + +Copyright remains Eric Young's, and as such any Copyright notices in +the code are not to be removed. +If this package is used in a product, Eric Young should be given attribution +as the author of that the SSL library. This can be in the form of a textual +message at program startup or in documentation (online or textual) provided +with the package. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions +are met: +1. Redistributions of source code must retain the copyright + notice, this list of conditions and the following disclaimer. +2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. +3. All advertising materials mentioning features or use of this software + must display the following acknowledgement: + This product includes software developed by Eric Young (eay@cryptsoft.com) + +THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +SUCH DAMAGE. + +The license and distribution terms for any publically available version or +derivative of this code cannot be changed. i.e. this code cannot simply be +copied and put under another distrubution license +[including the GNU Public License.] + +The reason behind this being stated in this direct manner is past +experience in code simply being copied and the attribution removed +from it and then being distributed as part of other packages. This +implementation was a non-trivial and unpaid effort. --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/des/INSTALL Mon Feb 9 13:51:03 2004 @@ -0,0 +1,69 @@ +Check the CC and CFLAGS lines in the makefile + +If your C library does not support the times(3) function, change the +#define TIMES to +#undef TIMES in speed.c +If it does, check the HZ value for the times(3) function. +If your system does not define CLK_TCK it will be assumed to +be 100.0. + +If possible use gcc v 2.7.? +Turn on the maximum optimising (normally '-O3 -fomit-frame-pointer' for gcc) +In recent times, some system compilers give better performace. + +type 'make' + +run './destest' to check things are ok. +run './rpw' to check the tty code for reading passwords works. +run './speed' to see how fast those optimisations make the library run :-) +run './des_opts' to determin the best compile time options. + +The output from des_opts should be put in the makefile options and des_enc.c +should be rebuilt. For 64 bit computers, do not use the DES_PTR option. +For the DEC Alpha, edit des.h and change DES_LONG to 'unsigned int' +and then you can use the 'DES_PTR' option. + +The file options.txt has the options listed for best speed on quite a +few systems. Look and the options (UNROLL, PTR, RISC2 etc) and then +turn on the relevent option in the Makefile + +There are some special Makefile targets that make life easier. +make cc - standard cc build +make gcc - standard gcc build +make x86-elf - x86 assembler (elf), linux-elf. +make x86-out - x86 assembler (a.out), FreeBSD +make x86-solaris- x86 assembler +make x86-bsdi - x86 assembler (a.out with primative assembler). + +If at all possible use the assembler (for Windows NT/95, use +asm/win32.obj to link with). The x86 assembler is very very fast. + +A make install will by default install +libdes.a in /usr/local/lib/libdes.a +des in /usr/local/bin/des +des_crypt.man in /usr/local/man/man3/des_crypt.3 +des.man in /usr/local/man/man1/des.1 +des.h in /usr/include/des.h + +des(1) should be compatible with sunOS's but I have been unable to +test it. + +These routines should compile on MSDOS, most 32bit and 64bit version +of Unix (BSD and SYSV) and VMS, without modification. +The only problems should be #include files that are in the wrong places. + +These routines can be compiled under MSDOS. +I have successfully encrypted files using des(1) under MSDOS and then +decrypted the files on a SparcStation. +I have been able to compile and test the routines with +Microsoft C v 5.1 and Turbo C v 2.0. +The code in this library is in no way optimised for the 16bit +operation of MSDOS. + +When building for glibc, ignore all of the above and just unpack into +glibc-1.??/des and then gmake as per normal. + +As a final note on performace. Certain CPUs like sparcs and Alpha often give +a %10 speed difference depending on the link order. It is rather anoying +when one program reports 'x' DES encrypts a second and another reports +'x*0.9' the speed. --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/des/Makefile Mon Feb 9 13:51:03 2004 @@ -0,0 +1,63 @@ +# Makefile for KLIPS kernel code as a module for 2.6 kernels +# +# Makefile for KLIPS kernel code as a module +# Copyright (C) 1998, 1999, 2000,2001 Richard Guy Briggs. +# Copyright (C) 2002-2004 Michael Richardson +# +# This program is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by the +# Free Software Foundation; either version 2 of the License, or (at your +# option) any later version. See . +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +# for more details. +# +# RCSID $Id: Makefile.fs2_6,v 1.2.2.1 2005/08/12 16:10:57 ken Exp $ +# +# Note! Dependencies are done automagically by 'make dep', which also +# removes any old dependencies. DON'T put your own dependencies here +# unless it's something special (ie not a .c file). +# + +obj-$(CONFIG_KLIPS_ENC_3DES) += ipsec_alg_3des.o +obj-$(CONFIG_KLIPS_ENC_3DES) += cbc_enc.o +obj-$(CONFIG_KLIPS_ENC_3DES) += ecb_enc.o +obj-$(CONFIG_KLIPS_ENC_3DES) += set_key.o + +ifeq ($(strip ${SUBARCH}),) +SUBARCH:=${ARCH} +endif + +# the assembly version expects frame pointers, which are +# optional in many kernel builds. If you want speed, you should +# probably use cryptoapi code instead. +USEASSEMBLY=${SUBARCH}${CONFIG_FRAME_POINTER} +ifeq (${USEASSEMBLY},i386y) +obj-$(CONFIG_KLIPS_ENC_3DES) += dx86unix.o +else +obj-$(CONFIG_KLIPS_ENC_3DES) += des_enc.o +endif + +# +# $Log: Makefile.fs2_6,v $ +# Revision 1.2.2.1 2005/08/12 16:10:57 ken +# do not use assembly code with there are no frame pointers +# +# Revision 1.3 2005/08/12 14:13:59 mcr +# do not use assembly code with there are no frame pointers, +# as it does not have the right linkages. +# +# Revision 1.2 2005/04/29 05:13:07 mcr +# 3DES algorithm code. +# +# Revision 1.1 2004/08/17 03:27:30 mcr +# klips 2.6 edits. +# +# +# Local Variables: +# compile-command: "(cd ../../.. && source umlsetup.sh && make -C ${POOLSPACE} module/ipsec.o)" +# End Variables: +# + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/des/README Mon Feb 9 13:51:03 2004 @@ -0,0 +1,54 @@ + + libdes, Version 4.01 10-Jan-97 + + Copyright (c) 1997, Eric Young + All rights reserved. + + This program is free software; you can redistribute it and/or modify + it under the terms specified in COPYRIGHT. + +-- +The primary ftp site for this library is +ftp://ftp.psy.uq.oz.au/pub/Crypto/DES/libdes-x.xx.tar.gz +libdes is now also shipped with SSLeay. Primary ftp site of +ftp://ftp.psy.uq.oz.au/pub/Crypto/SSL/SSLeay-x.x.x.tar.gz + +The best way to build this library is to build it as part of SSLeay. + +This kit builds a DES encryption library and a DES encryption program. +It supports ecb, cbc, ofb, cfb, triple ecb, triple cbc, triple ofb, +triple cfb, desx, and MIT's pcbc encryption modes and also has a fast +implementation of crypt(3). +It contains support routines to read keys from a terminal, +generate a random key, generate a key from an arbitrary length string, +read/write encrypted data from/to a file descriptor. + +The implementation was written so as to conform with the manual entry +for the des_crypt(3) library routines from MIT's project Athena. + +destest should be run after compilation to test the des routines. +rpw should be run after compilation to test the read password routines. +The des program is a replacement for the sun des command. I believe it +conforms to the sun version. + +The Imakefile is setup for use in the kerberos distribution. + +These routines are best compiled with gcc or any other good +optimising compiler. +Just turn you optimiser up to the highest settings and run destest +after the build to make sure everything works. + +I believe these routines are close to the fastest and most portable DES +routines that use small lookup tables (4.5k) that are publicly available. +The fcrypt routine is faster than ufc's fcrypt (when compiling with +gcc2 -O2) on the sparc 2 (1410 vs 1270) but is not so good on other machines +(on a sun3/260 168 vs 336). It is a function of CPU on chip cache size. +[ 10-Jan-97 and a function of an incorrect speed testing program in + ufc which gave much better test figures that reality ]. + +It is worth noting that on sparc and Alpha CPUs, performance of the DES +library can vary by upto %10 due to the positioning of files after application +linkage. + +Eric Young (eay@cryptsoft.com) + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/des/README.freeswan Mon Feb 9 13:51:03 2004 @@ -0,0 +1,33 @@ +The only changes the FreeS/WAN project has made to libdes-lite 4.04b are: + +We #ifdef-ed the declaration of DES_LONG in des.h, so it's more efficient +on the Alpha, instead of just noting the issue in a comment. + +We #ifdef-ed out the des_options() function in ecb_enc.c, because we don't +use it, and its call to sprintf() can cause subtle difficulties when KLIPS +is built as a module (depending on details of Linux configuration options). + +We changed some instances of CC=$(CC) in the Makefile to CC='$(CC)' to make +it cope better with Linux kernel Makefile stupidities, and took out an +explicit CC=gcc (unwise on systems with strange compilers). + +We deleted some references to and , and a declaration +of one function found only in the full libdes (not in libdes-lite), to +avoid dragging in bits of stdio/stdlib unnecessarily. (Our thanks to Hans +Schultz for spotting this and pointing out the fixes.) + +We deleted a couple of .obj files in the asm subdirectory, which appear to +have been included in the original library by accident. + +We have added an include of our Makefile.inc file, to permit overriding +things like choice of compiler (although the libdes Makefile would +probably need some work to make this effective). + + + +Note that Eric Young is no longer at the email address listed in these +files, and is (alas) no longer working on free crypto software. + + + +This file is RCSID $Id: README.freeswan,v 1.12 2004/07/10 08:06:51 mcr Exp $ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/des/VERSION Mon Feb 9 13:51:03 2004 @@ -0,0 +1,406 @@ +Version 4.04 + Fixed a few tests in destest. Also added x86 assember for + des_ncbc_encrypt() which is the standard cbc mode function. + This makes a very very large performace difference. + Ariel Glenn ariel@columbia.edu reports that the terminal + 'turn echo off' can return (errno == EINVAL) under solaris + when redirection is used. So I now catch that as well as ENOTTY. + + +Version 4.03 + Left a static out of enc_write.c, which caused to buffer to be + continiously malloc()ed. Does anyone use these functions? I keep + on feeling like removing them since I only had these in there + for a version of kerberised login. Anyway, this was pointed out + by Theo de Raadt + The 'n' bit ofb code was wrong, it was not shifting the shift + register. It worked correctly for n == 64. Thanks to + Gigi Ankeny for pointing this one out. + +Version 4.02 + I was doing 'if (memcmp(weak_keys[i],key,sizeof(key)) == 0)' + when checking for weak keys which is wrong :-(, pointed out by + Markus F.X.J. Oberhumer . + +Version 4.01 + Even faster inner loop in the DES assembler for x86 and a modification + for IP/FP which is faster on x86. Both of these changes are + from Svend Olaf Mikkelsen . His + changes make the assembler run %40 faster on a pentium. This is just + a case of getting the instruction sequence 'just right'. + All credit to 'Svend' :-) + Quite a few special x86 'make' targets. + A libdes-l (lite) distribution. + +Version 4.00 + After a bit of a pause, I'll up the major version number since this + is mostly a performace release. I've added x86 assembler and + added more options for performance. A %28 speedup for gcc + on a pentium and the assembler is a %50 speedup. + MIPS CPU's, sparc and Alpha are the main CPU's with speedups. + Run des_opts to work out which options should be used. + DES_RISC1/DES_RISC2 use alternative inner loops which use + more registers but should give speedups on any CPU that does + dual issue (pentium). DES_UNROLL unrolls the inner loop, + which costs in code size. + +Version 3.26 + I've finally removed one of the shifts in D_ENCRYPT. This + meant I've changed the des_SPtrans table (spr.h), the set_key() + function and some things in des_enc.c. This has definitly + made things faster :-). I've known about this one for some + time but I've been too lazy to follow it up :-). + Noticed that in the D_ENCRYPT() macro, we can just do L^=(..)^(..)^.. + instead of L^=((..)|(..)|(..).. This should save a register at + least. + Assember for x86. The file to replace is des_enc.c, which is replaced + by one of the assembler files found in asm. Look at des/asm/readme + for more info. + + /* Modification to fcrypt so it can be compiled to support + HPUX 10.x's long password format, define -DLONGCRYPT to use this. + Thanks to Jens Kupferschmidt . */ + + SIGWINCH case put in des_read_passwd() so the function does not + 'exit' if this function is recieved. + +Version 3.25 17/07/96 + Modified read_pwd.c so that stdin can be read if not a tty. + Thanks to Jeff Barber for the patches. + des_init_random_number_generator() shortened due to VMS linker + limits. + Added RSA's DESX cbc mode. It is a form of cbc encryption, with 2 + 8 byte quantites xored before and after encryption. + des_xcbc_encryption() - the name is funny to preserve the des_ + prefix on all functions. + +Version 3.24 20/04/96 + The DES_PTR macro option checked and used by SSLeay configuration + +Version 3.23 11/04/96 + Added DES_LONG. If defined to 'unsigned int' on the DEC Alpha, + it gives a %20 speedup :-) + Fixed the problem with des.pl under perl5. The patches were + sent by Ed Kubaitis (ejk@uiuc.edu). + if fcrypt.c, changed values to handle illegal salt values the way + normal crypt() implementations do. Some programs apparently use + them :-(. The patch was sent by Bjorn Gronvall + +Version 3.22 29/11/95 + Bug in des(1), an error with the uuencoding stuff when the + 'data' is small, thanks to Geoff Keating + for the patch. + +Version 3.21 22/11/95 + After some emailing back and forth with + Colin Plumb , I've tweaked a few things + and in a future version I will probably put in some of the + optimisation he suggested for use with the DES_USE_PTR option. + Extra routines from Mark Murray for use in + freeBSD. They mostly involve random number generation for use + with kerberos. They involve evil machine specific system calls + etc so I would normally suggest pushing this stuff into the + application and/or using RAND_seed()/RAND_bytes() if you are + using this DES library as part of SSLeay. + Redone the read_pw() function so that it is cleaner and + supports termios, thanks to Sameer Parekh + for the initial patches for this. + Renamed 3ecb_encrypt() to ecb3_encrypt(). This has been + done just to make things more consistent. + I have also now added triple DES versions of cfb and ofb. + +Version 3.20 + Damn, Damn, Damn, as pointed out by Mike_Spreitzer.PARC@xerox.com, + my des_random_seed() function was only copying 4 bytes of the + passed seed into the init structure. It is now fixed to copy 8. + My own suggestion is to used something like MD5 :-) + +Version 3.19 + While looking at my code one day, I though, why do I keep on + calling des_encrypt(in,out,ks,enc) when every function that + calls it has in and out the same. So I dropped the 'out' + parameter, people should not be using this function. + +Version 3.18 30/08/95 + Fixed a few bit with the distribution and the filenames. + 3.17 had been munged via a move to DOS and back again. + NO CODE CHANGES + +Version 3.17 14/07/95 + Fixed ede3 cbc which I had broken in 3.16. I have also + removed some unneeded variables in 7-8 of the routines. + +Version 3.16 26/06/95 + Added des_encrypt2() which does not use IP/FP, used by triple + des routines. Tweaked things a bit elsewhere. %13 speedup on + sparc and %6 on a R4400 for ede3 cbc mode. + +Version 3.15 06/06/95 + Added des_ncbc_encrypt(), it is des_cbc mode except that it is + 'normal' and copies the new iv value back over the top of the + passed parameter. + CHANGED des_ede3_cbc_encrypt() so that it too now overwrites + the iv. THIS WILL BREAK EXISTING CODE, but since this function + only new, I feel I can change it, not so with des_cbc_encrypt :-(. + I need to update the documentation. + +Version 3.14 31/05/95 + New release upon the world, as part of my SSL implementation. + New copyright and usage stuff. Basically free for all to use + as long as you say it came from me :-) + +Version 3.13 31/05/95 + A fix in speed.c, if HZ is not defined, I set it to 100.0 + which is reasonable for most unixes except SunOS 4.x. + I now have a #ifdef sun but timing for SunOS 4.x looked very + good :-(. At my last job where I used SunOS 4.x, it was + defined to be 60.0 (look at the old INSTALL documentation), at + the last release had it changed to 100.0 since I now work with + Solaris2 and SVR4 boxes. + Thanks to Rory Chisholm for pointing this + one out. + +Version 3.12 08/05/95 + As pointed out by The Crypt Keeper , + my D_ENCRYPT macro in crypt() had an un-necessary variable. + It has been removed. + +Version 3.11 03/05/95 + Added des_ede3_cbc_encrypt() which is cbc mode des with 3 keys + and one iv. It is a standard and I needed it for my SSL code. + It makes more sense to use this for triple DES than + 3cbc_encrypt(). I have also added (or should I say tested :-) + cfb64_encrypt() which is cfb64 but it will encrypt a partial + number of bytes - 3 bytes in 3 bytes out. Again this is for + my SSL library, as a form of encryption to use with SSL + telnet. + +Version 3.10 22/03/95 + Fixed a bug in 3cbc_encrypt() :-(. When making repeated calls + to cbc3_encrypt, the 2 iv values that were being returned to + be used in the next call were reversed :-(. + Many thanks to Bill Wade for pointing out + this error. + +Version 3.09 01/02/95 + Fixed des_random_key to far more random, it was rather feeble + with regards to picking the initial seed. The problem was + pointed out by Olaf Kirch . + +Version 3.08 14/12/94 + Added Makefile.PL so libdes can be built into perl5. + Changed des_locl.h so RAND is always defined. + +Version 3.07 05/12/94 + Added GNUmake and stuff so the library can be build with + glibc. + +Version 3.06 30/08/94 + Added rpc_enc.c which contains _des_crypt. This is for use in + secure_rpc v 4.0 + Finally fixed the cfb_enc problems. + Fixed a few parameter parsing bugs in des (-3 and -b), thanks + to Rob McMillan + +Version 3.05 21/04/94 + for unsigned long l; gcc does not produce ((l>>34) == 0) + This causes bugs in cfb_enc. + Thanks to Hadmut Danisch + +Version 3.04 20/04/94 + Added a version number to des.c and libdes.a + +Version 3.03 12/01/94 + Fixed a bug in non zero iv in 3cbc_enc. + +Version 3.02 29/10/93 + I now work in a place where there are 6+ architectures and 14+ + OS versions :-). + Fixed TERMIO definition so the most sys V boxes will work :-) + +Release upon comp.sources.misc +Version 3.01 08/10/93 + Added des_3cbc_encrypt() + +Version 3.00 07/10/93 + Fixed up documentation. + quad_cksum definitely compatible with MIT's now. + +Version 2.30 24/08/93 + Triple DES now defaults to triple cbc but can do triple ecb + with the -b flag. + Fixed some MSDOS uuen/uudecoding problems, thanks to + Added prototypes. + +Version 2.22 29/06/93 + Fixed a bug in des_is_weak_key() which stopped it working :-( + thanks to engineering@MorningStar.Com. + +Version 2.21 03/06/93 + des(1) with no arguments gives quite a bit of help. + Added -c (generate ckecksum) flag to des(1). + Added -3 (triple DES) flag to des(1). + Added cfb and ofb routines to the library. + +Version 2.20 11/03/93 + Added -u (uuencode) flag to des(1). + I have been playing with byte order in quad_cksum to make it + compatible with MIT's version. All I can say is avid this + function if possible since MIT's output is endian dependent. + +Version 2.12 14/10/92 + Added MSDOS specific macro in ecb_encrypt which gives a %70 + speed up when the code is compiled with turbo C. + +Version 2.11 12/10/92 + Speedup in set_key (recoding of PC-1) + I now do it in 47 simple operations, down from 60. + Thanks to John Fletcher (john_fletcher@lccmail.ocf.llnl.gov) + for motivating me to look for a faster system :-) + The speedup is probably less that 1% but it is still 13 + instructions less :-). + +Version 2.10 06/10/92 + The code now works on the 64bit ETA10 and CRAY without modifications or + #defines. I believe the code should work on any machine that + defines long, int or short to be 8 bytes long. + Thanks to Shabbir J. Safdar (shabby@mentor.cc.purdue.edu) + for helping me fix the code to run on 64bit machines (he had + access to an ETA10). + Thanks also to John Fletcher + for testing the routines on a CRAY. + read_password.c has been renamed to read_passwd.c + string_to_key.c has been renamed to string2key.c + +Version 2.00 14/09/92 + Made mods so that the library should work on 64bit CPU's. + Removed all my uchar and ulong defs. To many different + versions of unix define them in their header files in too many + different combinations :-) + IRIX - Sillicon Graphics mods (mostly in read_password.c). + Thanks to Andrew Daviel (advax@erich.triumf.ca) + +Version 1.99 26/08/92 + Fixed a bug or 2 in enc_read.c + Fixed a bug in enc_write.c + Fixed a pseudo bug in fcrypt.c (very obscure). + +Version 1.98 31/07/92 + Support for the ETA10. This is a strange machine that defines + longs and ints as 8 bytes and shorts as 4 bytes. + Since I do evil things with long * that assume that they are 4 + bytes. Look in the Makefile for the option to compile for + this machine. quad_cksum appears to have problems but I + will don't have the time to fix it right now, and this is not + a function that uses DES and so will not effect the main uses + of the library. + +Version 1.97 20/05/92 eay + Fixed the Imakefile and made some changes to des.h to fix some + problems when building this package with Kerberos v 4. + +Version 1.96 18/05/92 eay + Fixed a small bug in string_to_key() where problems could + occur if des_check_key was set to true and the string + generated a weak key. + +Patch2 posted to comp.sources.misc +Version 1.95 13/05/92 eay + Added an alternative version of the D_ENCRYPT macro in + ecb_encrypt and fcrypt. Depending on the compiler, one version or the + other will be faster. This was inspired by + Dana How , and her pointers about doing the + *(ulong *)((uchar *)ptr+(value&0xfc)) + vs + ptr[value&0x3f] + to stop the C compiler doing a <<2 to convert the long array index. + +Version 1.94 05/05/92 eay + Fixed an incompatibility between my string_to_key and the MIT + version. When the key is longer than 8 chars, I was wrapping + with a different method. To use the old version, define + OLD_STR_TO_KEY in the makefile. Thanks to + viktor@newsu.shearson.com (Viktor Dukhovni). + +Version 1.93 28/04/92 eay + Fixed the VMS mods so that echo is now turned off in + read_password. Thanks again to brennan@coco.cchs.su.oz.AU. + MSDOS support added. The routines can be compiled with + Turbo C (v2.0) and MSC (v5.1). Make sure MSDOS is defined. + +Patch1 posted to comp.sources.misc +Version 1.92 13/04/92 eay + Changed D_ENCRYPT so that the rotation of R occurs outside of + the loop. This required rotating all the longs in sp.h (now + called spr.h). Thanks to Richard Outerbridge <71755.204@CompuServe.COM> + speed.c has been changed so it will work without SIGALRM. If + times(3) is not present it will try to use ftime() instead. + +Version 1.91 08/04/92 eay + Added -E/-D options to des(1) so it can use string_to_key. + Added SVR4 mods suggested by witr@rwwa.COM + Added VMS mods suggested by brennan@coco.cchs.su.oz.AU. If + anyone knows how to turn of tty echo in VMS please tell me or + implement it yourself :-). + Changed FILE *IN/*OUT to *DES_IN/*DES_OUT since it appears VMS + does not like IN/OUT being used. + +Libdes posted to comp.sources.misc +Version 1.9 24/03/92 eay + Now contains a fast small crypt replacement. + Added des(1) command. + Added des_rw_mode so people can use cbc encryption with + enc_read and enc_write. + +Version 1.8 15/10/91 eay + Bug in cbc_cksum. + Many thanks to Keith Reynolds (keithr@sco.COM) for pointing this + one out. + +Version 1.7 24/09/91 eay + Fixed set_key :-) + set_key is 4 times faster and takes less space. + There are a few minor changes that could be made. + +Version 1.6 19/09/1991 eay + Finally go IP and FP finished. + Now I need to fix set_key. + This version is quite a bit faster that 1.51 + +Version 1.52 15/06/1991 eay + 20% speedup in ecb_encrypt by changing the E bit selection + to use 2 32bit words. This also required modification of the + sp table. There is still a way to speedup the IP and IP-1 + (hints from outer@sq.com) still working on this one :-(. + +Version 1.51 07/06/1991 eay + Faster des_encrypt by loop unrolling + Fixed bug in quad_cksum.c (thanks to hughes@logos.ucs.indiana.edu) + +Version 1.50 28/05/1991 eay + Optimised the code a bit more for the sparc. I have improved the + speed of the inner des_encrypt by speeding up the initial and + final permutations. + +Version 1.40 23/10/1990 eay + Fixed des_random_key, it did not produce a random key :-( + +Version 1.30 2/10/1990 eay + Have made des_quad_cksum the same as MIT's, the full package + should be compatible with MIT's + Have tested on a DECstation 3100 + Still need to fix des_set_key (make it faster). + Does des_cbc_encrypts at 70.5k/sec on a 3100. + +Version 1.20 18/09/1990 eay + Fixed byte order dependencies. + Fixed (I hope) all the word alignment problems. + Speedup in des_ecb_encrypt. + +Version 1.10 11/09/1990 eay + Added des_enc_read and des_enc_write. + Still need to fix des_quad_cksum. + Still need to document des_enc_read and des_enc_write. + +Version 1.00 27/08/1990 eay + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/des/asm/des-586.pl Mon Feb 9 13:51:03 2004 @@ -0,0 +1,251 @@ +#!/usr/local/bin/perl +# +# The inner loop instruction sequence and the IP/FP modifications are from +# Svend Olaf Mikkelsen +# + +push(@INC,"perlasm","../../perlasm"); +require "x86asm.pl"; +require "cbc.pl"; +require "desboth.pl"; + +# base code is in microsft +# op dest, source +# format. +# + +&asm_init($ARGV[0],"des-586.pl"); + +$L="edi"; +$R="esi"; + +&external_label("des_SPtrans"); +&des_encrypt("des_encrypt",1); +&des_encrypt("des_encrypt2",0); +&des_encrypt3("des_encrypt3",1); +&des_encrypt3("des_decrypt3",0); +&cbc("des_ncbc_encrypt","des_encrypt","des_encrypt",0,4,5,3,5,-1); +&cbc("des_ede3_cbc_encrypt","des_encrypt3","des_decrypt3",0,6,7,3,4,5); + +&asm_finish(); + +sub des_encrypt + { + local($name,$do_ip)=@_; + + &function_begin_B($name,"EXTRN _des_SPtrans:DWORD"); + + &push("esi"); + &push("edi"); + + &comment(""); + &comment("Load the 2 words"); + $ks="ebp"; + + if ($do_ip) + { + &mov($R,&wparam(0)); + &xor( "ecx", "ecx" ); + + &push("ebx"); + &push("ebp"); + + &mov("eax",&DWP(0,$R,"",0)); + &mov("ebx",&wparam(2)); # get encrypt flag + &mov($L,&DWP(4,$R,"",0)); + &comment(""); + &comment("IP"); + &IP_new("eax",$L,$R,3); + } + else + { + &mov("eax",&wparam(0)); + &xor( "ecx", "ecx" ); + + &push("ebx"); + &push("ebp"); + + &mov($R,&DWP(0,"eax","",0)); + &mov("ebx",&wparam(2)); # get encrypt flag + &rotl($R,3); + &mov($L,&DWP(4,"eax","",0)); + &rotl($L,3); + } + + &mov( $ks, &wparam(1) ); + &cmp("ebx","0"); + &je(&label("start_decrypt")); + + for ($i=0; $i<16; $i+=2) + { + &comment(""); + &comment("Round $i"); + &D_ENCRYPT($i,$L,$R,$i*2,$ks,"des_SPtrans","eax","ebx","ecx","edx"); + + &comment(""); + &comment("Round ".sprintf("%d",$i+1)); + &D_ENCRYPT($i+1,$R,$L,($i+1)*2,$ks,"des_SPtrans","eax","ebx","ecx","edx"); + } + &jmp(&label("end")); + + &set_label("start_decrypt"); + + for ($i=15; $i>0; $i-=2) + { + &comment(""); + &comment("Round $i"); + &D_ENCRYPT(15-$i,$L,$R,$i*2,$ks,"des_SPtrans","eax","ebx","ecx","edx"); + &comment(""); + &comment("Round ".sprintf("%d",$i-1)); + &D_ENCRYPT(15-$i+1,$R,$L,($i-1)*2,$ks,"des_SPtrans","eax","ebx","ecx","edx"); + } + + &set_label("end"); + + if ($do_ip) + { + &comment(""); + &comment("FP"); + &mov("edx",&wparam(0)); + &FP_new($L,$R,"eax",3); + + &mov(&DWP(0,"edx","",0),"eax"); + &mov(&DWP(4,"edx","",0),$R); + } + else + { + &comment(""); + &comment("Fixup"); + &rotr($L,3); # r + &mov("eax",&wparam(0)); + &rotr($R,3); # l + &mov(&DWP(0,"eax","",0),$L); + &mov(&DWP(4,"eax","",0),$R); + } + + &pop("ebp"); + &pop("ebx"); + &pop("edi"); + &pop("esi"); + &ret(); + + &function_end_B($name); + } + +sub D_ENCRYPT + { + local($r,$L,$R,$S,$ks,$desSP,$u,$tmp1,$tmp2,$t)=@_; + + &mov( $u, &DWP(&n2a($S*4),$ks,"",0)); + &xor( $tmp1, $tmp1); + &mov( $t, &DWP(&n2a(($S+1)*4),$ks,"",0)); + &xor( $u, $R); + &xor( $t, $R); + &and( $u, "0xfcfcfcfc" ); + &and( $t, "0xcfcfcfcf" ); + &movb( &LB($tmp1), &LB($u) ); + &movb( &LB($tmp2), &HB($u) ); + &rotr( $t, 4 ); + &mov( $ks, &DWP(" $desSP",$tmp1,"",0)); + &movb( &LB($tmp1), &LB($t) ); + &xor( $L, $ks); + &mov( $ks, &DWP("0x200+$desSP",$tmp2,"",0)); + &xor( $L, $ks); ###### + &movb( &LB($tmp2), &HB($t) ); + &shr( $u, 16); + &mov( $ks, &DWP("0x100+$desSP",$tmp1,"",0)); + &xor( $L, $ks); ###### + &movb( &LB($tmp1), &HB($u) ); + &shr( $t, 16); + &mov( $ks, &DWP("0x300+$desSP",$tmp2,"",0)); + &xor( $L, $ks); + &mov( $ks, &wparam(1) ); + &movb( &LB($tmp2), &HB($t) ); + &and( $u, "0xff" ); + &and( $t, "0xff" ); + &mov( $tmp1, &DWP("0x600+$desSP",$tmp1,"",0)); + &xor( $L, $tmp1); + &mov( $tmp1, &DWP("0x700+$desSP",$tmp2,"",0)); + &xor( $L, $tmp1); + &mov( $tmp1, &DWP("0x400+$desSP",$u,"",0)); + &xor( $L, $tmp1); + &mov( $tmp1, &DWP("0x500+$desSP",$t,"",0)); + &xor( $L, $tmp1); + } + +sub n2a + { + sprintf("%d",$_[0]); + } + +# now has a side affect of rotating $a by $shift +sub R_PERM_OP + { + local($a,$b,$tt,$shift,$mask,$last)=@_; + + &rotl( $a, $shift ) if ($shift != 0); + &mov( $tt, $a ); + &xor( $a, $b ); + &and( $a, $mask ); + if (!$last eq $b) + { + &xor( $b, $a ); + &xor( $tt, $a ); + } + else + { + &xor( $tt, $a ); + &xor( $b, $a ); + } + &comment(""); + } + +sub IP_new + { + local($l,$r,$tt,$lr)=@_; + + &R_PERM_OP($l,$r,$tt, 4,"0xf0f0f0f0",$l); + &R_PERM_OP($r,$tt,$l,20,"0xfff0000f",$l); + &R_PERM_OP($l,$tt,$r,14,"0x33333333",$r); + &R_PERM_OP($tt,$r,$l,22,"0x03fc03fc",$r); + &R_PERM_OP($l,$r,$tt, 9,"0xaaaaaaaa",$r); + + if ($lr != 3) + { + if (($lr-3) < 0) + { &rotr($tt, 3-$lr); } + else { &rotl($tt, $lr-3); } + } + if ($lr != 2) + { + if (($lr-2) < 0) + { &rotr($r, 2-$lr); } + else { &rotl($r, $lr-2); } + } + } + +sub FP_new + { + local($l,$r,$tt,$lr)=@_; + + if ($lr != 2) + { + if (($lr-2) < 0) + { &rotl($r, 2-$lr); } + else { &rotr($r, $lr-2); } + } + if ($lr != 3) + { + if (($lr-3) < 0) + { &rotl($l, 3-$lr); } + else { &rotr($l, $lr-3); } + } + + &R_PERM_OP($l,$r,$tt, 0,"0xaaaaaaaa",$r); + &R_PERM_OP($tt,$r,$l,23,"0x03fc03fc",$r); + &R_PERM_OP($l,$r,$tt,10,"0x33333333",$l); + &R_PERM_OP($r,$tt,$l,18,"0xfff0000f",$l); + &R_PERM_OP($l,$tt,$r,12,"0xf0f0f0f0",$r); + &rotr($tt , 4); + } + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/des/asm/des686.pl Mon Feb 9 13:51:03 2004 @@ -0,0 +1,230 @@ +#!/usr/local/bin/perl + +$prog="des686.pl"; + +# base code is in microsft +# op dest, source +# format. +# + +# WILL NOT WORK ANYMORE WITH desboth.pl +require "desboth.pl"; + +if ( ($ARGV[0] eq "elf")) + { require "x86unix.pl"; } +elsif ( ($ARGV[0] eq "a.out")) + { $aout=1; require "x86unix.pl"; } +elsif ( ($ARGV[0] eq "sol")) + { $sol=1; require "x86unix.pl"; } +elsif ( ($ARGV[0] eq "cpp")) + { $cpp=1; require "x86unix.pl"; } +elsif ( ($ARGV[0] eq "win32")) + { require "x86ms.pl"; } +else + { + print STDERR <<"EOF"; +Pick one target type from + elf - linux, FreeBSD etc + a.out - old linux + sol - x86 solaris + cpp - format so x86unix.cpp can be used + win32 - Windows 95/Windows NT +EOF + exit(1); + } + +&comment("Don't even think of reading this code"); +&comment("It was automatically generated by $prog"); +&comment("Which is a perl program used to generate the x86 assember for"); +&comment("any of elf, a.out, Win32, or Solaris"); +&comment("It can be found in SSLeay 0.6.5+ or in libdes 3.26+"); +&comment("eric "); +&comment(""); + +&file("dx86xxxx"); + +$L="edi"; +$R="esi"; + +&des_encrypt("des_encrypt",1); +&des_encrypt("des_encrypt2",0); + +&des_encrypt3("des_encrypt3",1); +&des_encrypt3("des_decrypt3",0); + +&file_end(); + +sub des_encrypt + { + local($name,$do_ip)=@_; + + &function_begin($name,"EXTRN _des_SPtrans:DWORD"); + + &comment(""); + &comment("Load the 2 words"); + &mov("eax",&wparam(0)); + &mov($L,&DWP(0,"eax","",0)); + &mov($R,&DWP(4,"eax","",0)); + + $ksp=&wparam(1); + + if ($do_ip) + { + &comment(""); + &comment("IP"); + &IP_new($L,$R,"eax"); + } + + &comment(""); + &comment("fixup rotate"); + &rotl($R,3); + &rotl($L,3); + &exch($L,$R); + + &comment(""); + &comment("load counter, key_schedule and enc flag"); + &mov("eax",&wparam(2)); # get encrypt flag + &mov("ebp",&wparam(1)); # get ks + &cmp("eax","0"); + &je(&label("start_decrypt")); + + # encrypting part + + for ($i=0; $i<16; $i+=2) + { + &comment(""); + &comment("Round $i"); + &D_ENCRYPT($L,$R,$i*2,"ebp","des_SPtrans","ecx","edx","eax","ebx"); + + &comment(""); + &comment("Round ".sprintf("%d",$i+1)); + &D_ENCRYPT($R,$L,($i+1)*2,"ebp","des_SPtrans","ecx","edx","eax","ebx"); + } + &jmp(&label("end")); + + &set_label("start_decrypt"); + + for ($i=15; $i>0; $i-=2) + { + &comment(""); + &comment("Round $i"); + &D_ENCRYPT($L,$R,$i*2,"ebp","des_SPtrans","ecx","edx","eax","ebx"); + &comment(""); + &comment("Round ".sprintf("%d",$i-1)); + &D_ENCRYPT($R,$L,($i-1)*2,"ebp","des_SPtrans","ecx","edx","eax","ebx"); + } + + &set_label("end"); + + &comment(""); + &comment("Fixup"); + &rotr($L,3); # r + &rotr($R,3); # l + + if ($do_ip) + { + &comment(""); + &comment("FP"); + &FP_new($R,$L,"eax"); + } + + &mov("eax",&wparam(0)); + &mov(&DWP(0,"eax","",0),$L); + &mov(&DWP(4,"eax","",0),$R); + + &function_end($name); + } + + +# The logic is to load R into 2 registers and operate on both at the same time. +# We also load the 2 R's into 2 more registers so we can do the 'move word down a byte' +# while also masking the other copy and doing a lookup. We then also accumulate the +# L value in 2 registers then combine them at the end. +sub D_ENCRYPT + { + local($L,$R,$S,$ks,$desSP,$u,$t,$tmp1,$tmp2,$tmp3)=@_; + + &mov( $u, &DWP(&n2a($S*4),$ks,"",0)); + &mov( $t, &DWP(&n2a(($S+1)*4),$ks,"",0)); + &xor( $u, $R ); + &xor( $t, $R ); + &rotr( $t, 4 ); + + # the numbers at the end of the line are origional instruction order + &mov( $tmp2, $u ); # 1 2 + &mov( $tmp1, $t ); # 1 1 + &and( $tmp2, "0xfc" ); # 1 4 + &and( $tmp1, "0xfc" ); # 1 3 + &shr( $t, 8 ); # 1 5 + &xor( $L, &DWP("0x100+$desSP",$tmp1,"",0)); # 1 7 + &shr( $u, 8 ); # 1 6 + &mov( $tmp1, &DWP(" $desSP",$tmp2,"",0)); # 1 8 + + &mov( $tmp2, $u ); # 2 2 + &xor( $L, $tmp1 ); # 1 9 + &and( $tmp2, "0xfc" ); # 2 4 + &mov( $tmp1, $t ); # 2 1 + &and( $tmp1, "0xfc" ); # 2 3 + &shr( $t, 8 ); # 2 5 + &xor( $L, &DWP("0x300+$desSP",$tmp1,"",0)); # 2 7 + &shr( $u, 8 ); # 2 6 + &mov( $tmp1, &DWP("0x200+$desSP",$tmp2,"",0)); # 2 8 + &mov( $tmp2, $u ); # 3 2 + + &xor( $L, $tmp1 ); # 2 9 + &and( $tmp2, "0xfc" ); # 3 4 + + &mov( $tmp1, $t ); # 3 1 + &shr( $u, 8 ); # 3 6 + &and( $tmp1, "0xfc" ); # 3 3 + &shr( $t, 8 ); # 3 5 + &xor( $L, &DWP("0x500+$desSP",$tmp1,"",0)); # 3 7 + &mov( $tmp1, &DWP("0x400+$desSP",$tmp2,"",0)); # 3 8 + + &and( $t, "0xfc" ); # 4 1 + &xor( $L, $tmp1 ); # 3 9 + + &and( $u, "0xfc" ); # 4 2 + &xor( $L, &DWP("0x700+$desSP",$t,"",0)); # 4 3 + &xor( $L, &DWP("0x600+$desSP",$u,"",0)); # 4 4 + } + +sub PERM_OP + { + local($a,$b,$tt,$shift,$mask)=@_; + + &mov( $tt, $a ); + &shr( $tt, $shift ); + &xor( $tt, $b ); + &and( $tt, $mask ); + &xor( $b, $tt ); + &shl( $tt, $shift ); + &xor( $a, $tt ); + } + +sub IP_new + { + local($l,$r,$tt)=@_; + + &PERM_OP($r,$l,$tt, 4,"0x0f0f0f0f"); + &PERM_OP($l,$r,$tt,16,"0x0000ffff"); + &PERM_OP($r,$l,$tt, 2,"0x33333333"); + &PERM_OP($l,$r,$tt, 8,"0x00ff00ff"); + &PERM_OP($r,$l,$tt, 1,"0x55555555"); + } + +sub FP_new + { + local($l,$r,$tt)=@_; + + &PERM_OP($l,$r,$tt, 1,"0x55555555"); + &PERM_OP($r,$l,$tt, 8,"0x00ff00ff"); + &PERM_OP($l,$r,$tt, 2,"0x33333333"); + &PERM_OP($r,$l,$tt,16,"0x0000ffff"); + &PERM_OP($l,$r,$tt, 4,"0x0f0f0f0f"); + } + +sub n2a + { + sprintf("%d",$_[0]); + } --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/des/asm/desboth.pl Mon Feb 9 13:51:03 2004 @@ -0,0 +1,79 @@ +#!/usr/local/bin/perl + +$L="edi"; +$R="esi"; + +sub des_encrypt3 + { + local($name,$enc)=@_; + + &function_begin_B($name,""); + &push("ebx"); + &mov("ebx",&wparam(0)); + + &push("ebp"); + &push("esi"); + + &push("edi"); + + &comment(""); + &comment("Load the data words"); + &mov($L,&DWP(0,"ebx","",0)); + &mov($R,&DWP(4,"ebx","",0)); + &stack_push(3); + + &comment(""); + &comment("IP"); + &IP_new($L,$R,"edx",0); + + # put them back + + if ($enc) + { + &mov(&DWP(4,"ebx","",0),$R); + &mov("eax",&wparam(1)); + &mov(&DWP(0,"ebx","",0),"edx"); + &mov("edi",&wparam(2)); + &mov("esi",&wparam(3)); + } + else + { + &mov(&DWP(4,"ebx","",0),$R); + &mov("esi",&wparam(1)); + &mov(&DWP(0,"ebx","",0),"edx"); + &mov("edi",&wparam(2)); + &mov("eax",&wparam(3)); + } + &mov(&swtmp(2), (($enc)?"1":"0")); + &mov(&swtmp(1), "eax"); + &mov(&swtmp(0), "ebx"); + &call("des_encrypt2"); + &mov(&swtmp(2), (($enc)?"0":"1")); + &mov(&swtmp(1), "edi"); + &mov(&swtmp(0), "ebx"); + &call("des_encrypt2"); + &mov(&swtmp(2), (($enc)?"1":"0")); + &mov(&swtmp(1), "esi"); + &mov(&swtmp(0), "ebx"); + &call("des_encrypt2"); + + &stack_pop(3); + &mov($L,&DWP(0,"ebx","",0)); + &mov($R,&DWP(4,"ebx","",0)); + + &comment(""); + &comment("FP"); + &FP_new($L,$R,"eax",0); + + &mov(&DWP(0,"ebx","",0),"eax"); + &mov(&DWP(4,"ebx","",0),$R); + + &pop("edi"); + &pop("esi"); + &pop("ebp"); + &pop("ebx"); + &ret(); + &function_end_B($name); + } + + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/des/asm/readme Mon Feb 9 13:51:03 2004 @@ -0,0 +1,131 @@ +First up, let me say I don't like writing in assembler. It is not portable, +dependant on the particular CPU architecture release and is generally a pig +to debug and get right. Having said that, the x86 architecture is probably +the most important for speed due to number of boxes and since +it appears to be the worst architecture to to get +good C compilers for. So due to this, I have lowered myself to do +assembler for the inner DES routines in libdes :-). + +The file to implement in assembler is des_enc.c. Replace the following +4 functions +des_encrypt(DES_LONG data[2],des_key_schedule ks, int encrypt); +des_encrypt2(DES_LONG data[2],des_key_schedule ks, int encrypt); +des_encrypt3(DES_LONG data[2],des_key_schedule ks1,ks2,ks3); +des_decrypt3(DES_LONG data[2],des_key_schedule ks1,ks2,ks3); + +They encrypt/decrypt the 64 bits held in 'data' using +the 'ks' key schedules. The only difference between the 4 functions is that +des_encrypt2() does not perform IP() or FP() on the data (this is an +optimization for when doing triple DES and des_encrypt3() and des_decrypt3() +perform triple des. The triple DES routines are in here because it does +make a big difference to have them located near the des_encrypt2 function +at link time.. + +Now as we all know, there are lots of different operating systems running on +x86 boxes, and unfortunately they normally try to make sure their assembler +formating is not the same as the other peoples. +The 4 main formats I know of are +Microsoft Windows 95/Windows NT +Elf Includes Linux and FreeBSD(?). +a.out The older Linux. +Solaris Same as Elf but different comments :-(. + +Now I was not overly keen to write 4 different copies of the same code, +so I wrote a few perl routines to output the correct assembler, given +a target assembler type. This code is ugly and is just a hack. +The libraries are x86unix.pl and x86ms.pl. +des586.pl, des686.pl and des-som[23].pl are the programs to actually +generate the assembler. + +So to generate elf assembler +perl des-som3.pl elf >dx86-elf.s +For Windows 95/NT +perl des-som2.pl win32 >win32.asm + +[ update 4 Jan 1996 ] +I have added another way to do things. +perl des-som3.pl cpp >dx86-cpp.s +generates a file that will be included by dx86unix.cpp when it is compiled. +To build for elf, a.out, solaris, bsdi etc, +cc -E -DELF asm/dx86unix.cpp | as -o asm/dx86-elf.o +cc -E -DSOL asm/dx86unix.cpp | as -o asm/dx86-sol.o +cc -E -DOUT asm/dx86unix.cpp | as -o asm/dx86-out.o +cc -E -DBSDI asm/dx86unix.cpp | as -o asm/dx86bsdi.o +This was done to cut down the number of files in the distribution. + +Now the ugly part. I acquired my copy of Intels +"Optimization's For Intel's 32-Bit Processors" and found a few interesting +things. First, the aim of the exersize is to 'extract' one byte at a time +from a word and do an array lookup. This involves getting the byte from +the 4 locations in the word and moving it to a new word and doing the lookup. +The most obvious way to do this is +xor eax, eax # clear word +movb al, cl # get low byte +xor edi DWORD PTR 0x100+des_SP[eax] # xor in word +movb al, ch # get next byte +xor edi DWORD PTR 0x300+des_SP[eax] # xor in word +shr ecx 16 +which seems ok. For the pentium, this system appears to be the best. +One has to do instruction interleaving to keep both functional units +operating, but it is basically very efficient. + +Now the crunch. When a full register is used after a partial write, eg. +mov al, cl +xor edi, DWORD PTR 0x100+des_SP[eax] +386 - 1 cycle stall +486 - 1 cycle stall +586 - 0 cycle stall +686 - at least 7 cycle stall (page 22 of the above mentioned document). + +So the technique that produces the best results on a pentium, according to +the documentation, will produce hideous results on a pentium pro. + +To get around this, des686.pl will generate code that is not as fast on +a pentium, should be very good on a pentium pro. +mov eax, ecx # copy word +shr ecx, 8 # line up next byte +and eax, 0fch # mask byte +xor edi DWORD PTR 0x100+des_SP[eax] # xor in array lookup +mov eax, ecx # get word +shr ecx 8 # line up next byte +and eax, 0fch # mask byte +xor edi DWORD PTR 0x300+des_SP[eax] # xor in array lookup + +Due to the execution units in the pentium, this actually works quite well. +For a pentium pro it should be very good. This is the type of output +Visual C++ generates. + +There is a third option. instead of using +mov al, ch +which is bad on the pentium pro, one may be able to use +movzx eax, ch +which may not incur the partial write penalty. On the pentium, +this instruction takes 4 cycles so is not worth using but on the +pentium pro it appears it may be worth while. I need access to one to +experiment :-). + +eric (20 Oct 1996) + +22 Nov 1996 - I have asked people to run the 2 different version on pentium +pros and it appears that the intel documentation is wrong. The +mov al,bh is still faster on a pentium pro, so just use the des586.pl +install des686.pl + +3 Dec 1996 - I added des_encrypt3/des_decrypt3 because I have moved these +functions into des_enc.c because it does make a massive performance +difference on some boxes to have the functions code located close to +the des_encrypt2() function. + +9 Jan 1997 - des-som2.pl is now the correct perl script to use for +pentiums. It contains an inner loop from +Svend Olaf Mikkelsen which does raw ecb DES calls at +273,000 per second. He had a previous version at 250,000 and the best +I was able to get was 203,000. The content has not changed, this is all +due to instruction sequencing (and actual instructions choice) which is able +to keep both functional units of the pentium going. +We may have lost the ugly register usage restrictions when x86 went 32 bit +but for the pentium it has been replaced by evil instruction ordering tricks. + +13 Jan 1997 - des-som3.pl, more optimizations from Svend Olaf. +raw DES at 281,000 per second on a pentium 100. + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/des/cbc_enc.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,135 @@ +/* crypto/des/cbc_enc.c */ +/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include "des/des_locl.h" + +void des_cbc_encrypt(input, output, length, schedule, ivec, enc) +des_cblock (*input); +des_cblock (*output); +long length; +des_key_schedule schedule; +des_cblock (*ivec); +int enc; + { + register DES_LONG tin0,tin1; + register DES_LONG tout0,tout1,xor0,xor1; + register unsigned char *in,*out; + register long l=length; + DES_LONG tin[2]; + unsigned char *iv; + + in=(unsigned char *)input; + out=(unsigned char *)output; + iv=(unsigned char *)ivec; + + if (enc) + { + c2l(iv,tout0); + c2l(iv,tout1); + for (l-=8; l>=0; l-=8) + { + c2l(in,tin0); + c2l(in,tin1); + tin0^=tout0; tin[0]=tin0; + tin1^=tout1; tin[1]=tin1; + des_encrypt((DES_LONG *)tin,schedule,DES_ENCRYPT); + tout0=tin[0]; l2c(tout0,out); + tout1=tin[1]; l2c(tout1,out); + } + if (l != -8) + { + c2ln(in,tin0,tin1,l+8); + tin0^=tout0; tin[0]=tin0; + tin1^=tout1; tin[1]=tin1; + des_encrypt((DES_LONG *)tin,schedule,DES_ENCRYPT); + tout0=tin[0]; l2c(tout0,out); + tout1=tin[1]; l2c(tout1,out); + } + } + else + { + c2l(iv,xor0); + c2l(iv,xor1); + for (l-=8; l>=0; l-=8) + { + c2l(in,tin0); tin[0]=tin0; + c2l(in,tin1); tin[1]=tin1; + des_encrypt((DES_LONG *)tin,schedule,DES_DECRYPT); + tout0=tin[0]^xor0; + tout1=tin[1]^xor1; + l2c(tout0,out); + l2c(tout1,out); + xor0=tin0; + xor1=tin1; + } + if (l != -8) + { + c2l(in,tin0); tin[0]=tin0; + c2l(in,tin1); tin[1]=tin1; + des_encrypt((DES_LONG *)tin,schedule,DES_DECRYPT); + tout0=tin[0]^xor0; + tout1=tin[1]^xor1; + l2cn(tout0,tout1,out,l+8); + /* xor0=tin0; + xor1=tin1; */ + } + } + tin0=tin1=tout0=tout1=xor0=xor1=0; + tin[0]=tin[1]=0; + } + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/des/des.doc Mon Feb 9 13:51:03 2004 @@ -0,0 +1,505 @@ +The DES library. + +Please note that this library was originally written to operate with +eBones, a version of Kerberos that had had encryption removed when it left +the USA and then put back in. As such there are some routines that I will +advise not using but they are still in the library for historical reasons. +For all calls that have an 'input' and 'output' variables, they can be the +same. + +This library requires the inclusion of 'des.h'. + +All of the encryption functions take what is called a des_key_schedule as an +argument. A des_key_schedule is an expanded form of the des key. +A des_key is 8 bytes of odd parity, the type used to hold the key is a +des_cblock. A des_cblock is an array of 8 bytes, often in this library +description I will refer to input bytes when the function specifies +des_cblock's as input or output, this just means that the variable should +be a multiple of 8 bytes. + +The define DES_ENCRYPT is passed to specify encryption, DES_DECRYPT to +specify decryption. The functions and global variable are as follows: + +int des_check_key; + DES keys are supposed to be odd parity. If this variable is set to + a non-zero value, des_set_key() will check that the key has odd + parity and is not one of the known weak DES keys. By default this + variable is turned off; + +void des_set_odd_parity( +des_cblock *key ); + This function takes a DES key (8 bytes) and sets the parity to odd. + +int des_is_weak_key( +des_cblock *key ); + This function returns a non-zero value if the DES key passed is a + weak, DES key. If it is a weak key, don't use it, try a different + one. If you are using 'random' keys, the chances of hitting a weak + key are 1/2^52 so it is probably not worth checking for them. + +int des_set_key( +des_cblock *key, +des_key_schedule schedule); + Des_set_key converts an 8 byte DES key into a des_key_schedule. + A des_key_schedule is an expanded form of the key which is used to + perform actual encryption. It can be regenerated from the DES key + so it only needs to be kept when encryption or decryption is about + to occur. Don't save or pass around des_key_schedule's since they + are CPU architecture dependent, DES keys are not. If des_check_key + is non zero, zero is returned if the key has the wrong parity or + the key is a weak key, else 1 is returned. + +int des_key_sched( +des_cblock *key, +des_key_schedule schedule); + An alternative name for des_set_key(). + +int des_rw_mode; /* defaults to DES_PCBC_MODE */ + This flag holds either DES_CBC_MODE or DES_PCBC_MODE (default). + This specifies the function to use in the enc_read() and enc_write() + functions. + +void des_encrypt( +unsigned long *data, +des_key_schedule ks, +int enc); + This is the DES encryption function that gets called by just about + every other DES routine in the library. You should not use this + function except to implement 'modes' of DES. I say this because the + functions that call this routine do the conversion from 'char *' to + long, and this needs to be done to make sure 'non-aligned' memory + access do not occur. The characters are loaded 'little endian', + have a look at my source code for more details on how I use this + function. + Data is a pointer to 2 unsigned long's and ks is the + des_key_schedule to use. enc, is non zero specifies encryption, + zero if decryption. + +void des_encrypt2( +unsigned long *data, +des_key_schedule ks, +int enc); + This functions is the same as des_encrypt() except that the DES + initial permutation (IP) and final permutation (FP) have been left + out. As for des_encrypt(), you should not use this function. + It is used by the routines in my library that implement triple DES. + IP() des_encrypt2() des_encrypt2() des_encrypt2() FP() is the same + as des_encrypt() des_encrypt() des_encrypt() except faster :-). + +void des_ecb_encrypt( +des_cblock *input, +des_cblock *output, +des_key_schedule ks, +int enc); + This is the basic Electronic Code Book form of DES, the most basic + form. Input is encrypted into output using the key represented by + ks. If enc is non zero (DES_ENCRYPT), encryption occurs, otherwise + decryption occurs. Input is 8 bytes long and output is 8 bytes. + (the des_cblock structure is 8 chars). + +void des_ecb3_encrypt( +des_cblock *input, +des_cblock *output, +des_key_schedule ks1, +des_key_schedule ks2, +des_key_schedule ks3, +int enc); + This is the 3 key EDE mode of ECB DES. What this means is that + the 8 bytes of input is encrypted with ks1, decrypted with ks2 and + then encrypted again with ks3, before being put into output; + C=E(ks3,D(ks2,E(ks1,M))). There is a macro, des_ecb2_encrypt() + that only takes 2 des_key_schedules that implements, + C=E(ks1,D(ks2,E(ks1,M))) in that the final encrypt is done with ks1. + +void des_cbc_encrypt( +des_cblock *input, +des_cblock *output, +long length, +des_key_schedule ks, +des_cblock *ivec, +int enc); + This routine implements DES in Cipher Block Chaining mode. + Input, which should be a multiple of 8 bytes is encrypted + (or decrypted) to output which will also be a multiple of 8 bytes. + The number of bytes is in length (and from what I've said above, + should be a multiple of 8). If length is not a multiple of 8, I'm + not being held responsible :-). ivec is the initialisation vector. + This function does not modify this variable. To correctly implement + cbc mode, you need to do one of 2 things; copy the last 8 bytes of + cipher text for use as the next ivec in your application, + or use des_ncbc_encrypt(). + Only this routine has this problem with updating the ivec, all + other routines that are implementing cbc mode update ivec. + +void des_ncbc_encrypt( +des_cblock *input, +des_cblock *output, +long length, +des_key_schedule sk, +des_cblock *ivec, +int enc); + For historical reasons, des_cbc_encrypt() did not update the + ivec with the value requires so that subsequent calls to + des_cbc_encrypt() would 'chain'. This was needed so that the same + 'length' values would not need to be used when decrypting. + des_ncbc_encrypt() does the right thing. It is the same as + des_cbc_encrypt accept that ivec is updates with the correct value + to pass in subsequent calls to des_ncbc_encrypt(). I advise using + des_ncbc_encrypt() instead of des_cbc_encrypt(); + +void des_xcbc_encrypt( +des_cblock *input, +des_cblock *output, +long length, +des_key_schedule sk, +des_cblock *ivec, +des_cblock *inw, +des_cblock *outw, +int enc); + This is RSA's DESX mode of DES. It uses inw and outw to + 'whiten' the encryption. inw and outw are secret (unlike the iv) + and are as such, part of the key. So the key is sort of 24 bytes. + This is much better than cbc des. + +void des_3cbc_encrypt( +des_cblock *input, +des_cblock *output, +long length, +des_key_schedule sk1, +des_key_schedule sk2, +des_cblock *ivec1, +des_cblock *ivec2, +int enc); + This function is flawed, do not use it. I have left it in the + library because it is used in my des(1) program and will function + correctly when used by des(1). If I removed the function, people + could end up unable to decrypt files. + This routine implements outer triple cbc encryption using 2 ks and + 2 ivec's. Use des_ede2_cbc_encrypt() instead. + +void des_ede3_cbc_encrypt( +des_cblock *input, +des_cblock *output, +long length, +des_key_schedule ks1, +des_key_schedule ks2, +des_key_schedule ks3, +des_cblock *ivec, +int enc); + This function implements inner triple CBC DES encryption with 3 + keys. What this means is that each 'DES' operation + inside the cbc mode is really an C=E(ks3,D(ks2,E(ks1,M))). + Again, this is cbc mode so an ivec is requires. + This mode is used by SSL. + There is also a des_ede2_cbc_encrypt() that only uses 2 + des_key_schedule's, the first being reused for the final + encryption. C=E(ks1,D(ks2,E(ks1,M))). This form of triple DES + is used by the RSAref library. + +void des_pcbc_encrypt( +des_cblock *input, +des_cblock *output, +long length, +des_key_schedule ks, +des_cblock *ivec, +int enc); + This is Propagating Cipher Block Chaining mode of DES. It is used + by Kerberos v4. It's parameters are the same as des_ncbc_encrypt(). + +void des_cfb_encrypt( +unsigned char *in, +unsigned char *out, +int numbits, +long length, +des_key_schedule ks, +des_cblock *ivec, +int enc); + Cipher Feedback Back mode of DES. This implementation 'feeds back' + in numbit blocks. The input (and output) is in multiples of numbits + bits. numbits should to be a multiple of 8 bits. Length is the + number of bytes input. If numbits is not a multiple of 8 bits, + the extra bits in the bytes will be considered padding. So if + numbits is 12, for each 2 input bytes, the 4 high bits of the + second byte will be ignored. So to encode 72 bits when using + a numbits of 12 take 12 bytes. To encode 72 bits when using + numbits of 9 will take 16 bytes. To encode 80 bits when using + numbits of 16 will take 10 bytes. etc, etc. This padding will + apply to both input and output. + + +void des_cfb64_encrypt( +unsigned char *in, +unsigned char *out, +long length, +des_key_schedule ks, +des_cblock *ivec, +int *num, +int enc); + This is one of the more useful functions in this DES library, it + implements CFB mode of DES with 64bit feedback. Why is this + useful you ask? Because this routine will allow you to encrypt an + arbitrary number of bytes, no 8 byte padding. Each call to this + routine will encrypt the input bytes to output and then update ivec + and num. num contains 'how far' we are though ivec. If this does + not make much sense, read more about cfb mode of DES :-). + +void des_ede3_cfb64_encrypt( +unsigned char *in, +unsigned char *out, +long length, +des_key_schedule ks1, +des_key_schedule ks2, +des_key_schedule ks3, +des_cblock *ivec, +int *num, +int enc); + Same as des_cfb64_encrypt() accept that the DES operation is + triple DES. As usual, there is a macro for + des_ede2_cfb64_encrypt() which reuses ks1. + +void des_ofb_encrypt( +unsigned char *in, +unsigned char *out, +int numbits, +long length, +des_key_schedule ks, +des_cblock *ivec); + This is a implementation of Output Feed Back mode of DES. It is + the same as des_cfb_encrypt() in that numbits is the size of the + units dealt with during input and output (in bits). + +void des_ofb64_encrypt( +unsigned char *in, +unsigned char *out, +long length, +des_key_schedule ks, +des_cblock *ivec, +int *num); + The same as des_cfb64_encrypt() except that it is Output Feed Back + mode. + +void des_ede3_ofb64_encrypt( +unsigned char *in, +unsigned char *out, +long length, +des_key_schedule ks1, +des_key_schedule ks2, +des_key_schedule ks3, +des_cblock *ivec, +int *num); + Same as des_ofb64_encrypt() accept that the DES operation is + triple DES. As usual, there is a macro for + des_ede2_ofb64_encrypt() which reuses ks1. + +int des_read_pw_string( +char *buf, +int length, +char *prompt, +int verify); + This routine is used to get a password from the terminal with echo + turned off. Buf is where the string will end up and length is the + size of buf. Prompt is a string presented to the 'user' and if + verify is set, the key is asked for twice and unless the 2 copies + match, an error is returned. A return code of -1 indicates a + system error, 1 failure due to use interaction, and 0 is success. + +unsigned long des_cbc_cksum( +des_cblock *input, +des_cblock *output, +long length, +des_key_schedule ks, +des_cblock *ivec); + This function produces an 8 byte checksum from input that it puts in + output and returns the last 4 bytes as a long. The checksum is + generated via cbc mode of DES in which only the last 8 byes are + kept. I would recommend not using this function but instead using + the EVP_Digest routines, or at least using MD5 or SHA. This + function is used by Kerberos v4 so that is why it stays in the + library. + +char *des_fcrypt( +const char *buf, +const char *salt +char *ret); + This is my fast version of the unix crypt(3) function. This version + takes only a small amount of space relative to other fast + crypt() implementations. This is different to the normal crypt + in that the third parameter is the buffer that the return value + is written into. It needs to be at least 14 bytes long. This + function is thread safe, unlike the normal crypt. + +char *crypt( +const char *buf, +const char *salt); + This function calls des_fcrypt() with a static array passed as the + third parameter. This emulates the normal non-thread safe semantics + of crypt(3). + +void des_string_to_key( +char *str, +des_cblock *key); + This function takes str and converts it into a DES key. I would + recommend using MD5 instead and use the first 8 bytes of output. + When I wrote the first version of these routines back in 1990, MD5 + did not exist but I feel these routines are still sound. This + routines is compatible with the one in MIT's libdes. + +void des_string_to_2keys( +char *str, +des_cblock *key1, +des_cblock *key2); + This function takes str and converts it into 2 DES keys. + I would recommend using MD5 and using the 16 bytes as the 2 keys. + I have nothing against these 2 'string_to_key' routines, it's just + that if you say that your encryption key is generated by using the + 16 bytes of an MD5 hash, every-one knows how you generated your + keys. + +int des_read_password( +des_cblock *key, +char *prompt, +int verify); + This routine combines des_read_pw_string() with des_string_to_key(). + +int des_read_2passwords( +des_cblock *key1, +des_cblock *key2, +char *prompt, +int verify); + This routine combines des_read_pw_string() with des_string_to_2key(). + +void des_random_seed( +des_cblock key); + This routine sets a starting point for des_random_key(). + +void des_random_key( +des_cblock ret); + This function return a random key. Make sure to 'seed' the random + number generator (with des_random_seed()) before using this function. + I personally now use a MD5 based random number system. + +int des_enc_read( +int fd, +char *buf, +int len, +des_key_schedule ks, +des_cblock *iv); + This function will write to a file descriptor the encrypted data + from buf. This data will be preceded by a 4 byte 'byte count' and + will be padded out to 8 bytes. The encryption is either CBC of + PCBC depending on the value of des_rw_mode. If it is DES_PCBC_MODE, + pcbc is used, if DES_CBC_MODE, cbc is used. The default is to use + DES_PCBC_MODE. + +int des_enc_write( +int fd, +char *buf, +int len, +des_key_schedule ks, +des_cblock *iv); + This routines read stuff written by des_enc_read() and decrypts it. + I have used these routines quite a lot but I don't believe they are + suitable for non-blocking io. If you are after a full + authentication/encryption over networks, have a look at SSL instead. + +unsigned long des_quad_cksum( +des_cblock *input, +des_cblock *output, +long length, +int out_count, +des_cblock *seed); + This is a function from Kerberos v4 that is not anything to do with + DES but was needed. It is a cksum that is quicker to generate than + des_cbc_cksum(); I personally would use MD5 routines now. +===== +Modes of DES +Quite a bit of the following information has been taken from + AS 2805.5.2 + Australian Standard + Electronic funds transfer - Requirements for interfaces, + Part 5.2: Modes of operation for an n-bit block cipher algorithm + Appendix A + +There are several different modes in which DES can be used, they are +as follows. + +Electronic Codebook Mode (ECB) (des_ecb_encrypt()) +- 64 bits are enciphered at a time. +- The order of the blocks can be rearranged without detection. +- The same plaintext block always produces the same ciphertext block + (for the same key) making it vulnerable to a 'dictionary attack'. +- An error will only affect one ciphertext block. + +Cipher Block Chaining Mode (CBC) (des_cbc_encrypt()) +- a multiple of 64 bits are enciphered at a time. +- The CBC mode produces the same ciphertext whenever the same + plaintext is encrypted using the same key and starting variable. +- The chaining operation makes the ciphertext blocks dependent on the + current and all preceding plaintext blocks and therefore blocks can not + be rearranged. +- The use of different starting variables prevents the same plaintext + enciphering to the same ciphertext. +- An error will affect the current and the following ciphertext blocks. + +Cipher Feedback Mode (CFB) (des_cfb_encrypt()) +- a number of bits (j) <= 64 are enciphered at a time. +- The CFB mode produces the same ciphertext whenever the same + plaintext is encrypted using the same key and starting variable. +- The chaining operation makes the ciphertext variables dependent on the + current and all preceding variables and therefore j-bit variables are + chained together and can not be rearranged. +- The use of different starting variables prevents the same plaintext + enciphering to the same ciphertext. +- The strength of the CFB mode depends on the size of k (maximal if + j == k). In my implementation this is always the case. +- Selection of a small value for j will require more cycles through + the encipherment algorithm per unit of plaintext and thus cause + greater processing overheads. +- Only multiples of j bits can be enciphered. +- An error will affect the current and the following ciphertext variables. + +Output Feedback Mode (OFB) (des_ofb_encrypt()) +- a number of bits (j) <= 64 are enciphered at a time. +- The OFB mode produces the same ciphertext whenever the same + plaintext enciphered using the same key and starting variable. More + over, in the OFB mode the same key stream is produced when the same + key and start variable are used. Consequently, for security reasons + a specific start variable should be used only once for a given key. +- The absence of chaining makes the OFB more vulnerable to specific attacks. +- The use of different start variables values prevents the same + plaintext enciphering to the same ciphertext, by producing different + key streams. +- Selection of a small value for j will require more cycles through + the encipherment algorithm per unit of plaintext and thus cause + greater processing overheads. +- Only multiples of j bits can be enciphered. +- OFB mode of operation does not extend ciphertext errors in the + resultant plaintext output. Every bit error in the ciphertext causes + only one bit to be in error in the deciphered plaintext. +- OFB mode is not self-synchronising. If the two operation of + encipherment and decipherment get out of synchronism, the system needs + to be re-initialised. +- Each re-initialisation should use a value of the start variable + different from the start variable values used before with the same + key. The reason for this is that an identical bit stream would be + produced each time from the same parameters. This would be + susceptible to a ' known plaintext' attack. + +Triple ECB Mode (des_ecb3_encrypt()) +- Encrypt with key1, decrypt with key2 and encrypt with key3 again. +- As for ECB encryption but increases the key length to 168 bits. + There are theoretic attacks that can be used that make the effective + key length 112 bits, but this attack also requires 2^56 blocks of + memory, not very likely, even for the NSA. +- If both keys are the same it is equivalent to encrypting once with + just one key. +- If the first and last key are the same, the key length is 112 bits. + There are attacks that could reduce the key space to 55 bit's but it + requires 2^56 blocks of memory. +- If all 3 keys are the same, this is effectively the same as normal + ecb mode. + +Triple CBC Mode (des_ede3_cbc_encrypt()) +- Encrypt with key1, decrypt with key2 and then encrypt with key3. +- As for CBC encryption but increases the key length to 168 bits with + the same restrictions as for triple ecb mode. --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/des/des_enc.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,502 @@ +/* crypto/des/des_enc.c */ +/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include "des/des_locl.h" + +void des_encrypt(data, ks, enc) +DES_LONG *data; +des_key_schedule ks; +int enc; + { + register DES_LONG l,r,t,u; +#ifdef DES_PTR + register unsigned char *des_SP=(unsigned char *)des_SPtrans; +#endif +#ifndef DES_UNROLL + register int i; +#endif + register DES_LONG *s; + + r=data[0]; + l=data[1]; + + IP(r,l); + /* Things have been modified so that the initial rotate is + * done outside the loop. This required the + * des_SPtrans values in sp.h to be rotated 1 bit to the right. + * One perl script later and things have a 5% speed up on a sparc2. + * Thanks to Richard Outerbridge <71755.204@CompuServe.COM> + * for pointing this out. */ + /* clear the top bits on machines with 8byte longs */ + /* shift left by 2 */ + r=ROTATE(r,29)&0xffffffffL; + l=ROTATE(l,29)&0xffffffffL; + + s=(DES_LONG *)ks; + /* I don't know if it is worth the effort of loop unrolling the + * inner loop */ + if (enc) + { +#ifdef DES_UNROLL + D_ENCRYPT(l,r, 0); /* 1 */ + D_ENCRYPT(r,l, 2); /* 2 */ + D_ENCRYPT(l,r, 4); /* 3 */ + D_ENCRYPT(r,l, 6); /* 4 */ + D_ENCRYPT(l,r, 8); /* 5 */ + D_ENCRYPT(r,l,10); /* 6 */ + D_ENCRYPT(l,r,12); /* 7 */ + D_ENCRYPT(r,l,14); /* 8 */ + D_ENCRYPT(l,r,16); /* 9 */ + D_ENCRYPT(r,l,18); /* 10 */ + D_ENCRYPT(l,r,20); /* 11 */ + D_ENCRYPT(r,l,22); /* 12 */ + D_ENCRYPT(l,r,24); /* 13 */ + D_ENCRYPT(r,l,26); /* 14 */ + D_ENCRYPT(l,r,28); /* 15 */ + D_ENCRYPT(r,l,30); /* 16 */ +#else + for (i=0; i<32; i+=8) + { + D_ENCRYPT(l,r,i+0); /* 1 */ + D_ENCRYPT(r,l,i+2); /* 2 */ + D_ENCRYPT(l,r,i+4); /* 3 */ + D_ENCRYPT(r,l,i+6); /* 4 */ + } +#endif + } + else + { +#ifdef DES_UNROLL + D_ENCRYPT(l,r,30); /* 16 */ + D_ENCRYPT(r,l,28); /* 15 */ + D_ENCRYPT(l,r,26); /* 14 */ + D_ENCRYPT(r,l,24); /* 13 */ + D_ENCRYPT(l,r,22); /* 12 */ + D_ENCRYPT(r,l,20); /* 11 */ + D_ENCRYPT(l,r,18); /* 10 */ + D_ENCRYPT(r,l,16); /* 9 */ + D_ENCRYPT(l,r,14); /* 8 */ + D_ENCRYPT(r,l,12); /* 7 */ + D_ENCRYPT(l,r,10); /* 6 */ + D_ENCRYPT(r,l, 8); /* 5 */ + D_ENCRYPT(l,r, 6); /* 4 */ + D_ENCRYPT(r,l, 4); /* 3 */ + D_ENCRYPT(l,r, 2); /* 2 */ + D_ENCRYPT(r,l, 0); /* 1 */ +#else + for (i=30; i>0; i-=8) + { + D_ENCRYPT(l,r,i-0); /* 16 */ + D_ENCRYPT(r,l,i-2); /* 15 */ + D_ENCRYPT(l,r,i-4); /* 14 */ + D_ENCRYPT(r,l,i-6); /* 13 */ + } +#endif + } + + /* rotate and clear the top bits on machines with 8byte longs */ + l=ROTATE(l,3)&0xffffffffL; + r=ROTATE(r,3)&0xffffffffL; + + FP(r,l); + data[0]=l; + data[1]=r; + l=r=t=u=0; + } + +void des_encrypt2(data, ks, enc) +DES_LONG *data; +des_key_schedule ks; +int enc; + { + register DES_LONG l,r,t,u; +#ifdef DES_PTR + register unsigned char *des_SP=(unsigned char *)des_SPtrans; +#endif +#ifndef DES_UNROLL + register int i; +#endif + register DES_LONG *s; + + r=data[0]; + l=data[1]; + + /* Things have been modified so that the initial rotate is + * done outside the loop. This required the + * des_SPtrans values in sp.h to be rotated 1 bit to the right. + * One perl script later and things have a 5% speed up on a sparc2. + * Thanks to Richard Outerbridge <71755.204@CompuServe.COM> + * for pointing this out. */ + /* clear the top bits on machines with 8byte longs */ + r=ROTATE(r,29)&0xffffffffL; + l=ROTATE(l,29)&0xffffffffL; + + s=(DES_LONG *)ks; + /* I don't know if it is worth the effort of loop unrolling the + * inner loop */ + if (enc) + { +#ifdef DES_UNROLL + D_ENCRYPT(l,r, 0); /* 1 */ + D_ENCRYPT(r,l, 2); /* 2 */ + D_ENCRYPT(l,r, 4); /* 3 */ + D_ENCRYPT(r,l, 6); /* 4 */ + D_ENCRYPT(l,r, 8); /* 5 */ + D_ENCRYPT(r,l,10); /* 6 */ + D_ENCRYPT(l,r,12); /* 7 */ + D_ENCRYPT(r,l,14); /* 8 */ + D_ENCRYPT(l,r,16); /* 9 */ + D_ENCRYPT(r,l,18); /* 10 */ + D_ENCRYPT(l,r,20); /* 11 */ + D_ENCRYPT(r,l,22); /* 12 */ + D_ENCRYPT(l,r,24); /* 13 */ + D_ENCRYPT(r,l,26); /* 14 */ + D_ENCRYPT(l,r,28); /* 15 */ + D_ENCRYPT(r,l,30); /* 16 */ +#else + for (i=0; i<32; i+=8) + { + D_ENCRYPT(l,r,i+0); /* 1 */ + D_ENCRYPT(r,l,i+2); /* 2 */ + D_ENCRYPT(l,r,i+4); /* 3 */ + D_ENCRYPT(r,l,i+6); /* 4 */ + } +#endif + } + else + { +#ifdef DES_UNROLL + D_ENCRYPT(l,r,30); /* 16 */ + D_ENCRYPT(r,l,28); /* 15 */ + D_ENCRYPT(l,r,26); /* 14 */ + D_ENCRYPT(r,l,24); /* 13 */ + D_ENCRYPT(l,r,22); /* 12 */ + D_ENCRYPT(r,l,20); /* 11 */ + D_ENCRYPT(l,r,18); /* 10 */ + D_ENCRYPT(r,l,16); /* 9 */ + D_ENCRYPT(l,r,14); /* 8 */ + D_ENCRYPT(r,l,12); /* 7 */ + D_ENCRYPT(l,r,10); /* 6 */ + D_ENCRYPT(r,l, 8); /* 5 */ + D_ENCRYPT(l,r, 6); /* 4 */ + D_ENCRYPT(r,l, 4); /* 3 */ + D_ENCRYPT(l,r, 2); /* 2 */ + D_ENCRYPT(r,l, 0); /* 1 */ +#else + for (i=30; i>0; i-=8) + { + D_ENCRYPT(l,r,i-0); /* 16 */ + D_ENCRYPT(r,l,i-2); /* 15 */ + D_ENCRYPT(l,r,i-4); /* 14 */ + D_ENCRYPT(r,l,i-6); /* 13 */ + } +#endif + } + /* rotate and clear the top bits on machines with 8byte longs */ + data[0]=ROTATE(l,3)&0xffffffffL; + data[1]=ROTATE(r,3)&0xffffffffL; + l=r=t=u=0; + } + +void des_encrypt3(data,ks1,ks2,ks3) +DES_LONG *data; +des_key_schedule ks1; +des_key_schedule ks2; +des_key_schedule ks3; + { + register DES_LONG l,r; + + l=data[0]; + r=data[1]; + IP(l,r); + data[0]=l; + data[1]=r; + des_encrypt2((DES_LONG *)data,ks1,DES_ENCRYPT); + des_encrypt2((DES_LONG *)data,ks2,DES_DECRYPT); + des_encrypt2((DES_LONG *)data,ks3,DES_ENCRYPT); + l=data[0]; + r=data[1]; + FP(r,l); + data[0]=l; + data[1]=r; + } + +void des_decrypt3(data,ks1,ks2,ks3) +DES_LONG *data; +des_key_schedule ks1; +des_key_schedule ks2; +des_key_schedule ks3; + { + register DES_LONG l,r; + + l=data[0]; + r=data[1]; + IP(l,r); + data[0]=l; + data[1]=r; + des_encrypt2((DES_LONG *)data,ks3,DES_DECRYPT); + des_encrypt2((DES_LONG *)data,ks2,DES_ENCRYPT); + des_encrypt2((DES_LONG *)data,ks1,DES_DECRYPT); + l=data[0]; + r=data[1]; + FP(r,l); + data[0]=l; + data[1]=r; + } + +#ifndef DES_DEFAULT_OPTIONS + +void des_ncbc_encrypt(input, output, length, schedule, ivec, enc) +des_cblock (*input); +des_cblock (*output); +long length; +des_key_schedule schedule; +des_cblock (*ivec); +int enc; + { + register DES_LONG tin0,tin1; + register DES_LONG tout0,tout1,xor0,xor1; + register unsigned char *in,*out; + register long l=length; + DES_LONG tin[2]; + unsigned char *iv; + + in=(unsigned char *)input; + out=(unsigned char *)output; + iv=(unsigned char *)ivec; + + if (enc) + { + c2l(iv,tout0); + c2l(iv,tout1); + for (l-=8; l>=0; l-=8) + { + c2l(in,tin0); + c2l(in,tin1); + tin0^=tout0; tin[0]=tin0; + tin1^=tout1; tin[1]=tin1; + des_encrypt((DES_LONG *)tin,schedule,DES_ENCRYPT); + tout0=tin[0]; l2c(tout0,out); + tout1=tin[1]; l2c(tout1,out); + } + if (l != -8) + { + c2ln(in,tin0,tin1,l+8); + tin0^=tout0; tin[0]=tin0; + tin1^=tout1; tin[1]=tin1; + des_encrypt((DES_LONG *)tin,schedule,DES_ENCRYPT); + tout0=tin[0]; l2c(tout0,out); + tout1=tin[1]; l2c(tout1,out); + } + iv=(unsigned char *)ivec; + l2c(tout0,iv); + l2c(tout1,iv); + } + else + { + c2l(iv,xor0); + c2l(iv,xor1); + for (l-=8; l>=0; l-=8) + { + c2l(in,tin0); tin[0]=tin0; + c2l(in,tin1); tin[1]=tin1; + des_encrypt((DES_LONG *)tin,schedule,DES_DECRYPT); + tout0=tin[0]^xor0; + tout1=tin[1]^xor1; + l2c(tout0,out); + l2c(tout1,out); + xor0=tin0; + xor1=tin1; + } + if (l != -8) + { + c2l(in,tin0); tin[0]=tin0; + c2l(in,tin1); tin[1]=tin1; + des_encrypt((DES_LONG *)tin,schedule,DES_DECRYPT); + tout0=tin[0]^xor0; + tout1=tin[1]^xor1; + l2cn(tout0,tout1,out,l+8); + xor0=tin0; + xor1=tin1; + } + + iv=(unsigned char *)ivec; + l2c(xor0,iv); + l2c(xor1,iv); + } + tin0=tin1=tout0=tout1=xor0=xor1=0; + tin[0]=tin[1]=0; + } + +void des_ede3_cbc_encrypt(input, output, length, ks1, ks2, ks3, ivec, enc) +des_cblock (*input); +des_cblock (*output); +long length; +des_key_schedule ks1; +des_key_schedule ks2; +des_key_schedule ks3; +des_cblock (*ivec); +int enc; + { + register DES_LONG tin0,tin1; + register DES_LONG tout0,tout1,xor0,xor1; + register unsigned char *in,*out; + register long l=length; + DES_LONG tin[2]; + unsigned char *iv; + + in=(unsigned char *)input; + out=(unsigned char *)output; + iv=(unsigned char *)ivec; + + if (enc) + { + c2l(iv,tout0); + c2l(iv,tout1); + for (l-=8; l>=0; l-=8) + { + c2l(in,tin0); + c2l(in,tin1); + tin0^=tout0; + tin1^=tout1; + + tin[0]=tin0; + tin[1]=tin1; + des_encrypt3((DES_LONG *)tin,ks1,ks2,ks3); + tout0=tin[0]; + tout1=tin[1]; + + l2c(tout0,out); + l2c(tout1,out); + } + if (l != -8) + { + c2ln(in,tin0,tin1,l+8); + tin0^=tout0; + tin1^=tout1; + + tin[0]=tin0; + tin[1]=tin1; + des_encrypt3((DES_LONG *)tin,ks1,ks2,ks3); + tout0=tin[0]; + tout1=tin[1]; + + l2c(tout0,out); + l2c(tout1,out); + } + iv=(unsigned char *)ivec; + l2c(tout0,iv); + l2c(tout1,iv); + } + else + { + register DES_LONG t0,t1; + + c2l(iv,xor0); + c2l(iv,xor1); + for (l-=8; l>=0; l-=8) + { + c2l(in,tin0); + c2l(in,tin1); + + t0=tin0; + t1=tin1; + + tin[0]=tin0; + tin[1]=tin1; + des_decrypt3((DES_LONG *)tin,ks1,ks2,ks3); + tout0=tin[0]; + tout1=tin[1]; + + tout0^=xor0; + tout1^=xor1; + l2c(tout0,out); + l2c(tout1,out); + xor0=t0; + xor1=t1; + } + if (l != -8) + { + c2l(in,tin0); + c2l(in,tin1); + + t0=tin0; + t1=tin1; + + tin[0]=tin0; + tin[1]=tin1; + des_decrypt3((DES_LONG *)tin,ks1,ks2,ks3); + tout0=tin[0]; + tout1=tin[1]; + + tout0^=xor0; + tout1^=xor1; + l2cn(tout0,tout1,out,l+8); + xor0=t0; + xor1=t1; + } + + iv=(unsigned char *)ivec; + l2c(xor0,iv); + l2c(xor1,iv); + } + tin0=tin1=tout0=tout1=xor0=xor1=0; + tin[0]=tin[1]=0; + } + +#endif /* DES_DEFAULT_OPTIONS */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/des/des_opts.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,620 @@ +/* crypto/des/des_opts.c */ +/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +/* define PART1, PART2, PART3 or PART4 to build only with a few of the options. + * This is for machines with 64k code segment size restrictions. */ + +#ifndef MSDOS +#define TIMES +#endif + +#include +#ifndef MSDOS +#include +#else +#include +extern void exit(); +#endif +#include +#ifndef VMS +#ifndef _IRIX +#include +#endif +#ifdef TIMES +#include +#include +#endif +#else /* VMS */ +#include +struct tms { + time_t tms_utime; + time_t tms_stime; + time_t tms_uchild; /* I dunno... */ + time_t tms_uchildsys; /* so these names are a guess :-) */ + } +#endif +#ifndef TIMES +#include +#endif + +#ifdef sun +#include +#include +#endif + +#include "des/des_locl.h" +#include "des/spr.h" + +#define DES_DEFAULT_OPTIONS + +#if !defined(PART1) && !defined(PART2) && !defined(PART3) && !defined(PART4) +#define PART1 +#define PART2 +#define PART3 +#define PART4 +#endif + +#ifdef PART1 + +#undef DES_UNROLL +#undef DES_RISC1 +#undef DES_RISC2 +#undef DES_PTR +#undef D_ENCRYPT +#define des_encrypt des_encrypt_u4_cisc_idx +#define des_encrypt2 des_encrypt2_u4_cisc_idx +#define des_encrypt3 des_encrypt3_u4_cisc_idx +#define des_decrypt3 des_decrypt3_u4_cisc_idx +#undef HEADER_DES_LOCL_H +#include "des_enc.c" + +#define DES_UNROLL +#undef DES_RISC1 +#undef DES_RISC2 +#undef DES_PTR +#undef D_ENCRYPT +#undef des_encrypt +#undef des_encrypt2 +#undef des_encrypt3 +#undef des_decrypt3 +#define des_encrypt des_encrypt_u16_cisc_idx +#define des_encrypt2 des_encrypt2_u16_cisc_idx +#define des_encrypt3 des_encrypt3_u16_cisc_idx +#define des_decrypt3 des_decrypt3_u16_cisc_idx +#undef HEADER_DES_LOCL_H +#include "des_enc.c" + +#undef DES_UNROLL +#define DES_RISC1 +#undef DES_RISC2 +#undef DES_PTR +#undef D_ENCRYPT +#undef des_encrypt +#undef des_encrypt2 +#undef des_encrypt3 +#undef des_decrypt3 +#define des_encrypt des_encrypt_u4_risc1_idx +#define des_encrypt2 des_encrypt2_u4_risc1_idx +#define des_encrypt3 des_encrypt3_u4_risc1_idx +#define des_decrypt3 des_decrypt3_u4_risc1_idx +#undef HEADER_DES_LOCL_H +#include "des_enc.c" + +#endif + +#ifdef PART2 + +#undef DES_UNROLL +#undef DES_RISC1 +#define DES_RISC2 +#undef DES_PTR +#undef D_ENCRYPT +#undef des_encrypt +#undef des_encrypt2 +#undef des_encrypt3 +#undef des_decrypt3 +#define des_encrypt des_encrypt_u4_risc2_idx +#define des_encrypt2 des_encrypt2_u4_risc2_idx +#define des_encrypt3 des_encrypt3_u4_risc2_idx +#define des_decrypt3 des_decrypt3_u4_risc2_idx +#undef HEADER_DES_LOCL_H +#include "des_enc.c" + +#define DES_UNROLL +#define DES_RISC1 +#undef DES_RISC2 +#undef DES_PTR +#undef D_ENCRYPT +#undef des_encrypt +#undef des_encrypt2 +#undef des_encrypt3 +#undef des_decrypt3 +#define des_encrypt des_encrypt_u16_risc1_idx +#define des_encrypt2 des_encrypt2_u16_risc1_idx +#define des_encrypt3 des_encrypt3_u16_risc1_idx +#define des_decrypt3 des_decrypt3_u16_risc1_idx +#undef HEADER_DES_LOCL_H +#include "des_enc.c" + +#define DES_UNROLL +#undef DES_RISC1 +#define DES_RISC2 +#undef DES_PTR +#undef D_ENCRYPT +#undef des_encrypt +#undef des_encrypt2 +#undef des_encrypt3 +#undef des_decrypt3 +#define des_encrypt des_encrypt_u16_risc2_idx +#define des_encrypt2 des_encrypt2_u16_risc2_idx +#define des_encrypt3 des_encrypt3_u16_risc2_idx +#define des_decrypt3 des_decrypt3_u16_risc2_idx +#undef HEADER_DES_LOCL_H +#include "des_enc.c" + +#endif + +#ifdef PART3 + +#undef DES_UNROLL +#undef DES_RISC1 +#undef DES_RISC2 +#define DES_PTR +#undef D_ENCRYPT +#undef des_encrypt +#undef des_encrypt2 +#undef des_encrypt3 +#undef des_decrypt3 +#define des_encrypt des_encrypt_u4_cisc_ptr +#define des_encrypt2 des_encrypt2_u4_cisc_ptr +#define des_encrypt3 des_encrypt3_u4_cisc_ptr +#define des_decrypt3 des_decrypt3_u4_cisc_ptr +#undef HEADER_DES_LOCL_H +#include "des_enc.c" + +#define DES_UNROLL +#undef DES_RISC1 +#undef DES_RISC2 +#define DES_PTR +#undef D_ENCRYPT +#undef des_encrypt +#undef des_encrypt2 +#undef des_encrypt3 +#undef des_decrypt3 +#define des_encrypt des_encrypt_u16_cisc_ptr +#define des_encrypt2 des_encrypt2_u16_cisc_ptr +#define des_encrypt3 des_encrypt3_u16_cisc_ptr +#define des_decrypt3 des_decrypt3_u16_cisc_ptr +#undef HEADER_DES_LOCL_H +#include "des_enc.c" + +#undef DES_UNROLL +#define DES_RISC1 +#undef DES_RISC2 +#define DES_PTR +#undef D_ENCRYPT +#undef des_encrypt +#undef des_encrypt2 +#undef des_encrypt3 +#undef des_decrypt3 +#define des_encrypt des_encrypt_u4_risc1_ptr +#define des_encrypt2 des_encrypt2_u4_risc1_ptr +#define des_encrypt3 des_encrypt3_u4_risc1_ptr +#define des_decrypt3 des_decrypt3_u4_risc1_ptr +#undef HEADER_DES_LOCL_H +#include "des_enc.c" + +#endif + +#ifdef PART4 + +#undef DES_UNROLL +#undef DES_RISC1 +#define DES_RISC2 +#define DES_PTR +#undef D_ENCRYPT +#undef des_encrypt +#undef des_encrypt2 +#undef des_encrypt3 +#undef des_decrypt3 +#define des_encrypt des_encrypt_u4_risc2_ptr +#define des_encrypt2 des_encrypt2_u4_risc2_ptr +#define des_encrypt3 des_encrypt3_u4_risc2_ptr +#define des_decrypt3 des_decrypt3_u4_risc2_ptr +#undef HEADER_DES_LOCL_H +#include "des_enc.c" + +#define DES_UNROLL +#define DES_RISC1 +#undef DES_RISC2 +#define DES_PTR +#undef D_ENCRYPT +#undef des_encrypt +#undef des_encrypt2 +#undef des_encrypt3 +#undef des_decrypt3 +#define des_encrypt des_encrypt_u16_risc1_ptr +#define des_encrypt2 des_encrypt2_u16_risc1_ptr +#define des_encrypt3 des_encrypt3_u16_risc1_ptr +#define des_decrypt3 des_decrypt3_u16_risc1_ptr +#undef HEADER_DES_LOCL_H +#include "des_enc.c" + +#define DES_UNROLL +#undef DES_RISC1 +#define DES_RISC2 +#define DES_PTR +#undef D_ENCRYPT +#undef des_encrypt +#undef des_encrypt2 +#undef des_encrypt3 +#undef des_decrypt3 +#define des_encrypt des_encrypt_u16_risc2_ptr +#define des_encrypt2 des_encrypt2_u16_risc2_ptr +#define des_encrypt3 des_encrypt3_u16_risc2_ptr +#define des_decrypt3 des_decrypt3_u16_risc2_ptr +#undef HEADER_DES_LOCL_H +#include "des_enc.c" + +#endif + +/* The following if from times(3) man page. It may need to be changed */ +#ifndef HZ +# ifndef CLK_TCK +# ifndef _BSD_CLK_TCK_ /* FreeBSD fix */ +# ifndef VMS +# define HZ 100.0 +# else /* VMS */ +# define HZ 100.0 +# endif +# else /* _BSD_CLK_TCK_ */ +# define HZ ((double)_BSD_CLK_TCK_) +# endif +# else /* CLK_TCK */ +# define HZ ((double)CLK_TCK) +# endif +#endif + +#define BUFSIZE ((long)1024) +long run=0; + +#ifndef NOPROTO +double Time_F(int s); +#else +double Time_F(); +#endif + +#ifdef SIGALRM +#if defined(__STDC__) || defined(sgi) +#define SIGRETTYPE void +#else +#define SIGRETTYPE int +#endif + +#ifndef NOPROTO +SIGRETTYPE sig_done(int sig); +#else +SIGRETTYPE sig_done(); +#endif + +SIGRETTYPE sig_done(sig) +int sig; + { + signal(SIGALRM,sig_done); + run=0; +#ifdef LINT + sig=sig; +#endif + } +#endif + +#define START 0 +#define STOP 1 + +double Time_F(s) +int s; + { + double ret; +#ifdef TIMES + static struct tms tstart,tend; + + if (s == START) + { + times(&tstart); + return(0); + } + else + { + times(&tend); + ret=((double)(tend.tms_utime-tstart.tms_utime))/HZ; + return((ret == 0.0)?1e-6:ret); + } +#else /* !times() */ + static struct timeb tstart,tend; + long i; + + if (s == START) + { + ftime(&tstart); + return(0); + } + else + { + ftime(&tend); + i=(long)tend.millitm-(long)tstart.millitm; + ret=((double)(tend.time-tstart.time))+((double)i)/1000.0; + return((ret == 0.0)?1e-6:ret); + } +#endif + } + +#ifdef SIGALRM +#define print_name(name) fprintf(stderr,"Doing %s's for 10 seconds\n",name); alarm(10); +#else +#define print_name(name) fprintf(stderr,"Doing %s %ld times\n",name,cb); +#endif + +#define time_it(func,name,index) \ + print_name(name); \ + Time_F(START); \ + for (count=0,run=1; COND(cb); count++) \ + { \ + unsigned long d[2]; \ + func(d,&(sch[0]),DES_ENCRYPT); \ + } \ + tm[index]=Time_F(STOP); \ + fprintf(stderr,"%ld %s's in %.2f second\n",count,name,tm[index]); \ + tm[index]=((double)COUNT(cb))/tm[index]; + +#define print_it(name,index) \ + fprintf(stderr,"%s bytes per sec = %12.2f (%5.1fuS)\n",name, \ + tm[index]*8,1.0e6/tm[index]); + +int main(argc,argv) +int argc; +char **argv; + { + long count; + static unsigned char buf[BUFSIZE]; + static des_cblock key ={0x12,0x34,0x56,0x78,0x9a,0xbc,0xde,0xf0}; + static des_cblock key2={0x34,0x56,0x78,0x9a,0xbc,0xde,0xf0,0x12}; + static des_cblock key3={0x56,0x78,0x9a,0xbc,0xde,0xf0,0x12,0x34}; + des_key_schedule sch,sch2,sch3; + double d,tm[16],max=0; + int rank[16]; + char *str[16]; + int max_idx=0,i,num=0,j; +#ifndef SIGALARM + long ca,cb,cc,cd,ce; +#endif + + for (i=0; i<12; i++) + { + tm[i]=0.0; + rank[i]=0; + } + +#ifndef TIMES + fprintf(stderr,"To get the most acurate results, try to run this\n"); + fprintf(stderr,"program when this computer is idle.\n"); +#endif + + des_set_key((C_Block *)key,sch); + des_set_key((C_Block *)key2,sch2); + des_set_key((C_Block *)key3,sch3); + +#ifndef SIGALRM + fprintf(stderr,"First we calculate the approximate speed ...\n"); + des_set_key((C_Block *)key,sch); + count=10; + do { + long i; + unsigned long data[2]; + + count*=2; + Time_F(START); + for (i=count; i; i--) + des_encrypt(data,&(sch[0]),DES_ENCRYPT); + d=Time_F(STOP); + } while (d < 3.0); + ca=count; + cb=count*3; + cc=count*3*8/BUFSIZE+1; + cd=count*8/BUFSIZE+1; + + ce=count/20+1; +#define COND(d) (count != (d)) +#define COUNT(d) (d) +#else +#define COND(c) (run) +#define COUNT(d) (count) + signal(SIGALRM,sig_done); + alarm(10); +#endif + +#ifdef PART1 + time_it(des_encrypt_u4_cisc_idx, "des_encrypt_u4_cisc_idx ", 0); + time_it(des_encrypt_u16_cisc_idx, "des_encrypt_u16_cisc_idx ", 1); + time_it(des_encrypt_u4_risc1_idx, "des_encrypt_u4_risc1_idx ", 2); + num+=3; +#endif +#ifdef PART2 + time_it(des_encrypt_u16_risc1_idx,"des_encrypt_u16_risc1_idx", 3); + time_it(des_encrypt_u4_risc2_idx, "des_encrypt_u4_risc2_idx ", 4); + time_it(des_encrypt_u16_risc2_idx,"des_encrypt_u16_risc2_idx", 5); + num+=3; +#endif +#ifdef PART3 + time_it(des_encrypt_u4_cisc_ptr, "des_encrypt_u4_cisc_ptr ", 6); + time_it(des_encrypt_u16_cisc_ptr, "des_encrypt_u16_cisc_ptr ", 7); + time_it(des_encrypt_u4_risc1_ptr, "des_encrypt_u4_risc1_ptr ", 8); + num+=3; +#endif +#ifdef PART4 + time_it(des_encrypt_u16_risc1_ptr,"des_encrypt_u16_risc1_ptr", 9); + time_it(des_encrypt_u4_risc2_ptr, "des_encrypt_u4_risc2_ptr ",10); + time_it(des_encrypt_u16_risc2_ptr,"des_encrypt_u16_risc2_ptr",11); + num+=3; +#endif + +#ifdef PART1 + str[0]=" 4 c i"; + print_it("des_encrypt_u4_cisc_idx ",0); + max=tm[0]; + max_idx=0; + str[1]="16 c i"; + print_it("des_encrypt_u16_cisc_idx ",1); + if (max < tm[1]) { max=tm[1]; max_idx=1; } + str[2]=" 4 r1 i"; + print_it("des_encrypt_u4_risc1_idx ",2); + if (max < tm[2]) { max=tm[2]; max_idx=2; } +#endif +#ifdef PART2 + str[3]="16 r1 i"; + print_it("des_encrypt_u16_risc1_idx",3); + if (max < tm[3]) { max=tm[3]; max_idx=3; } + str[4]=" 4 r2 i"; + print_it("des_encrypt_u4_risc2_idx ",4); + if (max < tm[4]) { max=tm[4]; max_idx=4; } + str[5]="16 r2 i"; + print_it("des_encrypt_u16_risc2_idx",5); + if (max < tm[5]) { max=tm[5]; max_idx=5; } +#endif +#ifdef PART3 + str[6]=" 4 c p"; + print_it("des_encrypt_u4_cisc_ptr ",6); + if (max < tm[6]) { max=tm[6]; max_idx=6; } + str[7]="16 c p"; + print_it("des_encrypt_u16_cisc_ptr ",7); + if (max < tm[7]) { max=tm[7]; max_idx=7; } + str[8]=" 4 r1 p"; + print_it("des_encrypt_u4_risc1_ptr ",8); + if (max < tm[8]) { max=tm[8]; max_idx=8; } +#endif +#ifdef PART4 + str[9]="16 r1 p"; + print_it("des_encrypt_u16_risc1_ptr",9); + if (max < tm[9]) { max=tm[9]; max_idx=9; } + str[10]=" 4 r2 p"; + print_it("des_encrypt_u4_risc2_ptr ",10); + if (max < tm[10]) { max=tm[10]; max_idx=10; } + str[11]="16 r2 p"; + print_it("des_encrypt_u16_risc2_ptr",11); + if (max < tm[11]) { max=tm[11]; max_idx=11; } +#endif + printf("options des ecb/s\n"); + printf("%s %12.2f 100.0%%\n",str[max_idx],tm[max_idx]); + d=tm[max_idx]; + tm[max_idx]= -2.0; + max= -1.0; + for (;;) + { + for (i=0; i<12; i++) + { + if (max < tm[i]) { max=tm[i]; j=i; } + } + if (max < 0.0) break; + printf("%s %12.2f %4.1f%%\n",str[j],tm[j],tm[j]/d*100.0); + tm[j]= -2.0; + max= -1.0; + } + + switch (max_idx) + { + case 0: + printf("-DDES_DEFAULT_OPTIONS\n"); + break; + case 1: + printf("-DDES_UNROLL\n"); + break; + case 2: + printf("-DDES_RISC1\n"); + break; + case 3: + printf("-DDES_UNROLL -DDES_RISC1\n"); + break; + case 4: + printf("-DDES_RISC2\n"); + break; + case 5: + printf("-DDES_UNROLL -DDES_RISC2\n"); + break; + case 6: + printf("-DDES_PTR\n"); + break; + case 7: + printf("-DDES_UNROLL -DDES_PTR\n"); + break; + case 8: + printf("-DDES_RISC1 -DDES_PTR\n"); + break; + case 9: + printf("-DDES_UNROLL -DDES_RISC1 -DDES_PTR\n"); + break; + case 10: + printf("-DDES_RISC2 -DDES_PTR\n"); + break; + case 11: + printf("-DDES_UNROLL -DDES_RISC2 -DDES_PTR\n"); + break; + } + exit(0); +#if defined(LINT) || defined(MSDOS) + return(0); +#endif + } --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/des/dx86unix.S Mon Feb 9 13:51:03 2004 @@ -0,0 +1,3160 @@ +/* + * This file was originally generated by Michael Richardson + * via the perl scripts found in the ASM subdir. It remains copyright of + * Eric Young, see the file COPYRIGHT. + * + * This was last done on October 9, 2002. + * + * While this file does not need to go through cpp, we pass it through + * CPP by naming it dx86unix.S instead of dx86unix.s because there is + * a bug in Rules.make for .s builds - specifically it references EXTRA_CFLAGS + * which may contain stuff that AS doesn't understand instead of + * referencing EXTRA_AFLAGS. + */ + + .file "dx86unix.S" + .version "01.01" +.text + .align 16 +.globl des_encrypt + .type des_encrypt , @function +des_encrypt: + pushl %esi + pushl %edi + + + movl 12(%esp), %esi + xorl %ecx, %ecx + pushl %ebx + pushl %ebp + movl (%esi), %eax + movl 28(%esp), %ebx + movl 4(%esi), %edi + + + roll $4, %eax + movl %eax, %esi + xorl %edi, %eax + andl $0xf0f0f0f0, %eax + xorl %eax, %esi + xorl %eax, %edi + + roll $20, %edi + movl %edi, %eax + xorl %esi, %edi + andl $0xfff0000f, %edi + xorl %edi, %eax + xorl %edi, %esi + + roll $14, %eax + movl %eax, %edi + xorl %esi, %eax + andl $0x33333333, %eax + xorl %eax, %edi + xorl %eax, %esi + + roll $22, %esi + movl %esi, %eax + xorl %edi, %esi + andl $0x03fc03fc, %esi + xorl %esi, %eax + xorl %esi, %edi + + roll $9, %eax + movl %eax, %esi + xorl %edi, %eax + andl $0xaaaaaaaa, %eax + xorl %eax, %esi + xorl %eax, %edi + +.byte 209 +.byte 199 + movl 24(%esp), %ebp + cmpl $0, %ebx + je .L000start_decrypt + + + movl (%ebp), %eax + xorl %ebx, %ebx + movl 4(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 8(%ebp), %eax + xorl %ebx, %ebx + movl 12(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 16(%ebp), %eax + xorl %ebx, %ebx + movl 20(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 24(%ebp), %eax + xorl %ebx, %ebx + movl 28(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 32(%ebp), %eax + xorl %ebx, %ebx + movl 36(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 40(%ebp), %eax + xorl %ebx, %ebx + movl 44(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 48(%ebp), %eax + xorl %ebx, %ebx + movl 52(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 56(%ebp), %eax + xorl %ebx, %ebx + movl 60(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 64(%ebp), %eax + xorl %ebx, %ebx + movl 68(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 72(%ebp), %eax + xorl %ebx, %ebx + movl 76(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 80(%ebp), %eax + xorl %ebx, %ebx + movl 84(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 88(%ebp), %eax + xorl %ebx, %ebx + movl 92(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 96(%ebp), %eax + xorl %ebx, %ebx + movl 100(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 104(%ebp), %eax + xorl %ebx, %ebx + movl 108(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 112(%ebp), %eax + xorl %ebx, %ebx + movl 116(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 120(%ebp), %eax + xorl %ebx, %ebx + movl 124(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + jmp .L001end +.L000start_decrypt: + + + movl 120(%ebp), %eax + xorl %ebx, %ebx + movl 124(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 112(%ebp), %eax + xorl %ebx, %ebx + movl 116(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 104(%ebp), %eax + xorl %ebx, %ebx + movl 108(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 96(%ebp), %eax + xorl %ebx, %ebx + movl 100(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 88(%ebp), %eax + xorl %ebx, %ebx + movl 92(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 80(%ebp), %eax + xorl %ebx, %ebx + movl 84(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 72(%ebp), %eax + xorl %ebx, %ebx + movl 76(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 64(%ebp), %eax + xorl %ebx, %ebx + movl 68(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 56(%ebp), %eax + xorl %ebx, %ebx + movl 60(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 48(%ebp), %eax + xorl %ebx, %ebx + movl 52(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 40(%ebp), %eax + xorl %ebx, %ebx + movl 44(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 32(%ebp), %eax + xorl %ebx, %ebx + movl 36(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 24(%ebp), %eax + xorl %ebx, %ebx + movl 28(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 16(%ebp), %eax + xorl %ebx, %ebx + movl 20(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 8(%ebp), %eax + xorl %ebx, %ebx + movl 12(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl (%ebp), %eax + xorl %ebx, %ebx + movl 4(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi +.L001end: + + + movl 20(%esp), %edx +.byte 209 +.byte 206 + movl %edi, %eax + xorl %esi, %edi + andl $0xaaaaaaaa, %edi + xorl %edi, %eax + xorl %edi, %esi + + roll $23, %eax + movl %eax, %edi + xorl %esi, %eax + andl $0x03fc03fc, %eax + xorl %eax, %edi + xorl %eax, %esi + + roll $10, %edi + movl %edi, %eax + xorl %esi, %edi + andl $0x33333333, %edi + xorl %edi, %eax + xorl %edi, %esi + + roll $18, %esi + movl %esi, %edi + xorl %eax, %esi + andl $0xfff0000f, %esi + xorl %esi, %edi + xorl %esi, %eax + + roll $12, %edi + movl %edi, %esi + xorl %eax, %edi + andl $0xf0f0f0f0, %edi + xorl %edi, %esi + xorl %edi, %eax + + rorl $4, %eax + movl %eax, (%edx) + movl %esi, 4(%edx) + popl %ebp + popl %ebx + popl %edi + popl %esi + ret +.des_encrypt_end: + .size des_encrypt , .des_encrypt_end-des_encrypt +.ident "desasm.pl" +.text + .align 16 +.globl des_encrypt2 + .type des_encrypt2 , @function +des_encrypt2: + pushl %esi + pushl %edi + + + movl 12(%esp), %eax + xorl %ecx, %ecx + pushl %ebx + pushl %ebp + movl (%eax), %esi + movl 28(%esp), %ebx + roll $3, %esi + movl 4(%eax), %edi + roll $3, %edi + movl 24(%esp), %ebp + cmpl $0, %ebx + je .L002start_decrypt + + + movl (%ebp), %eax + xorl %ebx, %ebx + movl 4(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 8(%ebp), %eax + xorl %ebx, %ebx + movl 12(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 16(%ebp), %eax + xorl %ebx, %ebx + movl 20(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 24(%ebp), %eax + xorl %ebx, %ebx + movl 28(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 32(%ebp), %eax + xorl %ebx, %ebx + movl 36(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 40(%ebp), %eax + xorl %ebx, %ebx + movl 44(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 48(%ebp), %eax + xorl %ebx, %ebx + movl 52(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 56(%ebp), %eax + xorl %ebx, %ebx + movl 60(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 64(%ebp), %eax + xorl %ebx, %ebx + movl 68(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 72(%ebp), %eax + xorl %ebx, %ebx + movl 76(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 80(%ebp), %eax + xorl %ebx, %ebx + movl 84(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 88(%ebp), %eax + xorl %ebx, %ebx + movl 92(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 96(%ebp), %eax + xorl %ebx, %ebx + movl 100(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 104(%ebp), %eax + xorl %ebx, %ebx + movl 108(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 112(%ebp), %eax + xorl %ebx, %ebx + movl 116(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 120(%ebp), %eax + xorl %ebx, %ebx + movl 124(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + jmp .L003end +.L002start_decrypt: + + + movl 120(%ebp), %eax + xorl %ebx, %ebx + movl 124(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 112(%ebp), %eax + xorl %ebx, %ebx + movl 116(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 104(%ebp), %eax + xorl %ebx, %ebx + movl 108(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 96(%ebp), %eax + xorl %ebx, %ebx + movl 100(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 88(%ebp), %eax + xorl %ebx, %ebx + movl 92(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 80(%ebp), %eax + xorl %ebx, %ebx + movl 84(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 72(%ebp), %eax + xorl %ebx, %ebx + movl 76(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 64(%ebp), %eax + xorl %ebx, %ebx + movl 68(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 56(%ebp), %eax + xorl %ebx, %ebx + movl 60(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 48(%ebp), %eax + xorl %ebx, %ebx + movl 52(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 40(%ebp), %eax + xorl %ebx, %ebx + movl 44(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 32(%ebp), %eax + xorl %ebx, %ebx + movl 36(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 24(%ebp), %eax + xorl %ebx, %ebx + movl 28(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl 16(%ebp), %eax + xorl %ebx, %ebx + movl 20(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi + + + movl 8(%ebp), %eax + xorl %ebx, %ebx + movl 12(%ebp), %edx + xorl %esi, %eax + xorl %esi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %edi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %edi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %edi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %edi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %edi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %edi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %edi + + + movl (%ebp), %eax + xorl %ebx, %ebx + movl 4(%ebp), %edx + xorl %edi, %eax + xorl %edi, %edx + andl $0xfcfcfcfc, %eax + andl $0xcfcfcfcf, %edx + movb %al, %bl + movb %ah, %cl + rorl $4, %edx + movl des_SPtrans(%ebx),%ebp + movb %dl, %bl + xorl %ebp, %esi + movl 0x200+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movb %dh, %cl + shrl $16, %eax + movl 0x100+des_SPtrans(%ebx),%ebp + xorl %ebp, %esi + movb %ah, %bl + shrl $16, %edx + movl 0x300+des_SPtrans(%ecx),%ebp + xorl %ebp, %esi + movl 24(%esp), %ebp + movb %dh, %cl + andl $0xff, %eax + andl $0xff, %edx + movl 0x600+des_SPtrans(%ebx),%ebx + xorl %ebx, %esi + movl 0x700+des_SPtrans(%ecx),%ebx + xorl %ebx, %esi + movl 0x400+des_SPtrans(%eax),%ebx + xorl %ebx, %esi + movl 0x500+des_SPtrans(%edx),%ebx + xorl %ebx, %esi +.L003end: + + + rorl $3, %edi + movl 20(%esp), %eax + rorl $3, %esi + movl %edi, (%eax) + movl %esi, 4(%eax) + popl %ebp + popl %ebx + popl %edi + popl %esi + ret +.des_encrypt2_end: + .size des_encrypt2 , .des_encrypt2_end-des_encrypt2 +.ident "desasm.pl" +.text + .align 16 +.globl des_encrypt3 + .type des_encrypt3 , @function +des_encrypt3: + pushl %ebx + movl 8(%esp), %ebx + pushl %ebp + pushl %esi + pushl %edi + + + movl (%ebx), %edi + movl 4(%ebx), %esi + subl $12, %esp + + + roll $4, %edi + movl %edi, %edx + xorl %esi, %edi + andl $0xf0f0f0f0, %edi + xorl %edi, %edx + xorl %edi, %esi + + roll $20, %esi + movl %esi, %edi + xorl %edx, %esi + andl $0xfff0000f, %esi + xorl %esi, %edi + xorl %esi, %edx + + roll $14, %edi + movl %edi, %esi + xorl %edx, %edi + andl $0x33333333, %edi + xorl %edi, %esi + xorl %edi, %edx + + roll $22, %edx + movl %edx, %edi + xorl %esi, %edx + andl $0x03fc03fc, %edx + xorl %edx, %edi + xorl %edx, %esi + + roll $9, %edi + movl %edi, %edx + xorl %esi, %edi + andl $0xaaaaaaaa, %edi + xorl %edi, %edx + xorl %edi, %esi + + rorl $3, %edx + rorl $2, %esi + movl %esi, 4(%ebx) + movl 36(%esp), %eax + movl %edx, (%ebx) + movl 40(%esp), %edi + movl 44(%esp), %esi + movl $1, 8(%esp) + movl %eax, 4(%esp) + movl %ebx, (%esp) + call des_encrypt2 + movl $0, 8(%esp) + movl %edi, 4(%esp) + movl %ebx, (%esp) + call des_encrypt2 + movl $1, 8(%esp) + movl %esi, 4(%esp) + movl %ebx, (%esp) + call des_encrypt2 + addl $12, %esp + movl (%ebx), %edi + movl 4(%ebx), %esi + + + roll $2, %esi + roll $3, %edi + movl %edi, %eax + xorl %esi, %edi + andl $0xaaaaaaaa, %edi + xorl %edi, %eax + xorl %edi, %esi + + roll $23, %eax + movl %eax, %edi + xorl %esi, %eax + andl $0x03fc03fc, %eax + xorl %eax, %edi + xorl %eax, %esi + + roll $10, %edi + movl %edi, %eax + xorl %esi, %edi + andl $0x33333333, %edi + xorl %edi, %eax + xorl %edi, %esi + + roll $18, %esi + movl %esi, %edi + xorl %eax, %esi + andl $0xfff0000f, %esi + xorl %esi, %edi + xorl %esi, %eax + + roll $12, %edi + movl %edi, %esi + xorl %eax, %edi + andl $0xf0f0f0f0, %edi + xorl %edi, %esi + xorl %edi, %eax + + rorl $4, %eax + movl %eax, (%ebx) + movl %esi, 4(%ebx) + popl %edi + popl %esi + popl %ebp + popl %ebx + ret +.des_encrypt3_end: + .size des_encrypt3 , .des_encrypt3_end-des_encrypt3 +.ident "desasm.pl" +.text + .align 16 +.globl des_decrypt3 + .type des_decrypt3 , @function +des_decrypt3: + pushl %ebx + movl 8(%esp), %ebx + pushl %ebp + pushl %esi + pushl %edi + + + movl (%ebx), %edi + movl 4(%ebx), %esi + subl $12, %esp + + + roll $4, %edi + movl %edi, %edx + xorl %esi, %edi + andl $0xf0f0f0f0, %edi + xorl %edi, %edx + xorl %edi, %esi + + roll $20, %esi + movl %esi, %edi + xorl %edx, %esi + andl $0xfff0000f, %esi + xorl %esi, %edi + xorl %esi, %edx + + roll $14, %edi + movl %edi, %esi + xorl %edx, %edi + andl $0x33333333, %edi + xorl %edi, %esi + xorl %edi, %edx + + roll $22, %edx + movl %edx, %edi + xorl %esi, %edx + andl $0x03fc03fc, %edx + xorl %edx, %edi + xorl %edx, %esi + + roll $9, %edi + movl %edi, %edx + xorl %esi, %edi + andl $0xaaaaaaaa, %edi + xorl %edi, %edx + xorl %edi, %esi + + rorl $3, %edx + rorl $2, %esi + movl %esi, 4(%ebx) + movl 36(%esp), %esi + movl %edx, (%ebx) + movl 40(%esp), %edi + movl 44(%esp), %eax + movl $0, 8(%esp) + movl %eax, 4(%esp) + movl %ebx, (%esp) + call des_encrypt2 + movl $1, 8(%esp) + movl %edi, 4(%esp) + movl %ebx, (%esp) + call des_encrypt2 + movl $0, 8(%esp) + movl %esi, 4(%esp) + movl %ebx, (%esp) + call des_encrypt2 + addl $12, %esp + movl (%ebx), %edi + movl 4(%ebx), %esi + + + roll $2, %esi + roll $3, %edi + movl %edi, %eax + xorl %esi, %edi + andl $0xaaaaaaaa, %edi + xorl %edi, %eax + xorl %edi, %esi + + roll $23, %eax + movl %eax, %edi + xorl %esi, %eax + andl $0x03fc03fc, %eax + xorl %eax, %edi + xorl %eax, %esi + + roll $10, %edi + movl %edi, %eax + xorl %esi, %edi + andl $0x33333333, %edi + xorl %edi, %eax + xorl %edi, %esi + + roll $18, %esi + movl %esi, %edi + xorl %eax, %esi + andl $0xfff0000f, %esi + xorl %esi, %edi + xorl %esi, %eax + + roll $12, %edi + movl %edi, %esi + xorl %eax, %edi + andl $0xf0f0f0f0, %edi + xorl %edi, %esi + xorl %edi, %eax + + rorl $4, %eax + movl %eax, (%ebx) + movl %esi, 4(%ebx) + popl %edi + popl %esi + popl %ebp + popl %ebx + ret +.des_decrypt3_end: + .size des_decrypt3 , .des_decrypt3_end-des_decrypt3 +.ident "desasm.pl" +.text + .align 16 +.globl des_ncbc_encrypt + .type des_ncbc_encrypt , @function +des_ncbc_encrypt: + + pushl %ebp + pushl %ebx + pushl %esi + pushl %edi + movl 28(%esp), %ebp + + movl 36(%esp), %ebx + movl (%ebx), %esi + movl 4(%ebx), %edi + pushl %edi + pushl %esi + pushl %edi + pushl %esi + movl %esp, %ebx + movl 36(%esp), %esi + movl 40(%esp), %edi + + movl 56(%esp), %ecx + + pushl %ecx + + movl 52(%esp), %eax + pushl %eax + pushl %ebx + cmpl $0, %ecx + jz .L004decrypt + andl $4294967288, %ebp + movl 12(%esp), %eax + movl 16(%esp), %ebx + jz .L005encrypt_finish +.L006encrypt_loop: + movl (%esi), %ecx + movl 4(%esi), %edx + xorl %ecx, %eax + xorl %edx, %ebx + movl %eax, 12(%esp) + movl %ebx, 16(%esp) + call des_encrypt + movl 12(%esp), %eax + movl 16(%esp), %ebx + movl %eax, (%edi) + movl %ebx, 4(%edi) + addl $8, %esi + addl $8, %edi + subl $8, %ebp + jnz .L006encrypt_loop +.L005encrypt_finish: + movl 56(%esp), %ebp + andl $7, %ebp + jz .L007finish + xorl %ecx, %ecx + xorl %edx, %edx + movl .L008cbc_enc_jmp_table(,%ebp,4),%ebp + jmp *%ebp +.L009ej7: + movb 6(%esi), %dh + sall $8, %edx +.L010ej6: + movb 5(%esi), %dh +.L011ej5: + movb 4(%esi), %dl +.L012ej4: + movl (%esi), %ecx + jmp .L013ejend +.L014ej3: + movb 2(%esi), %ch + sall $8, %ecx +.L015ej2: + movb 1(%esi), %ch +.L016ej1: + movb (%esi), %cl +.L013ejend: + xorl %ecx, %eax + xorl %edx, %ebx + movl %eax, 12(%esp) + movl %ebx, 16(%esp) + call des_encrypt + movl 12(%esp), %eax + movl 16(%esp), %ebx + movl %eax, (%edi) + movl %ebx, 4(%edi) + jmp .L007finish +.align 16 +.L004decrypt: + andl $4294967288, %ebp + movl 20(%esp), %eax + movl 24(%esp), %ebx + jz .L017decrypt_finish +.L018decrypt_loop: + movl (%esi), %eax + movl 4(%esi), %ebx + movl %eax, 12(%esp) + movl %ebx, 16(%esp) + call des_encrypt + movl 12(%esp), %eax + movl 16(%esp), %ebx + movl 20(%esp), %ecx + movl 24(%esp), %edx + xorl %eax, %ecx + xorl %ebx, %edx + movl (%esi), %eax + movl 4(%esi), %ebx + movl %ecx, (%edi) + movl %edx, 4(%edi) + movl %eax, 20(%esp) + movl %ebx, 24(%esp) + addl $8, %esi + addl $8, %edi + subl $8, %ebp + jnz .L018decrypt_loop +.L017decrypt_finish: + movl 56(%esp), %ebp + andl $7, %ebp + jz .L007finish + movl (%esi), %eax + movl 4(%esi), %ebx + movl %eax, 12(%esp) + movl %ebx, 16(%esp) + call des_encrypt + movl 12(%esp), %eax + movl 16(%esp), %ebx + movl 20(%esp), %ecx + movl 24(%esp), %edx + xorl %eax, %ecx + xorl %ebx, %edx + movl (%esi), %eax + movl 4(%esi), %ebx +.L019dj7: + rorl $16, %edx + movb %dl, 6(%edi) + shrl $16, %edx +.L020dj6: + movb %dh, 5(%edi) +.L021dj5: + movb %dl, 4(%edi) +.L022dj4: + movl %ecx, (%edi) + jmp .L023djend +.L024dj3: + rorl $16, %ecx + movb %cl, 2(%edi) + sall $16, %ecx +.L025dj2: + movb %ch, 1(%esi) +.L026dj1: + movb %cl, (%esi) +.L023djend: + jmp .L007finish +.align 16 +.L007finish: + movl 64(%esp), %ecx + addl $28, %esp + movl %eax, (%ecx) + movl %ebx, 4(%ecx) + popl %edi + popl %esi + popl %ebx + popl %ebp + ret +.align 16 +.L008cbc_enc_jmp_table: + .long 0 + .long .L016ej1 + .long .L015ej2 + .long .L014ej3 + .long .L012ej4 + .long .L011ej5 + .long .L010ej6 + .long .L009ej7 +.align 16 +.L027cbc_dec_jmp_table: + .long 0 + .long .L026dj1 + .long .L025dj2 + .long .L024dj3 + .long .L022dj4 + .long .L021dj5 + .long .L020dj6 + .long .L019dj7 +.des_ncbc_encrypt_end: + .size des_ncbc_encrypt , .des_ncbc_encrypt_end-des_ncbc_encrypt +.ident "desasm.pl" +.text + .align 16 +.globl des_ede3_cbc_encrypt + .type des_ede3_cbc_encrypt , @function +des_ede3_cbc_encrypt: + + pushl %ebp + pushl %ebx + pushl %esi + pushl %edi + movl 28(%esp), %ebp + + movl 44(%esp), %ebx + movl (%ebx), %esi + movl 4(%ebx), %edi + pushl %edi + pushl %esi + pushl %edi + pushl %esi + movl %esp, %ebx + movl 36(%esp), %esi + movl 40(%esp), %edi + + movl 64(%esp), %ecx + + movl 56(%esp), %eax + pushl %eax + + movl 56(%esp), %eax + pushl %eax + + movl 56(%esp), %eax + pushl %eax + pushl %ebx + cmpl $0, %ecx + jz .L028decrypt + andl $4294967288, %ebp + movl 16(%esp), %eax + movl 20(%esp), %ebx + jz .L029encrypt_finish +.L030encrypt_loop: + movl (%esi), %ecx + movl 4(%esi), %edx + xorl %ecx, %eax + xorl %edx, %ebx + movl %eax, 16(%esp) + movl %ebx, 20(%esp) + call des_encrypt3 + movl 16(%esp), %eax + movl 20(%esp), %ebx + movl %eax, (%edi) + movl %ebx, 4(%edi) + addl $8, %esi + addl $8, %edi + subl $8, %ebp + jnz .L030encrypt_loop +.L029encrypt_finish: + movl 60(%esp), %ebp + andl $7, %ebp + jz .L031finish + xorl %ecx, %ecx + xorl %edx, %edx + movl .L032cbc_enc_jmp_table(,%ebp,4),%ebp + jmp *%ebp +.L033ej7: + movb 6(%esi), %dh + sall $8, %edx +.L034ej6: + movb 5(%esi), %dh +.L035ej5: + movb 4(%esi), %dl +.L036ej4: + movl (%esi), %ecx + jmp .L037ejend +.L038ej3: + movb 2(%esi), %ch + sall $8, %ecx +.L039ej2: + movb 1(%esi), %ch +.L040ej1: + movb (%esi), %cl +.L037ejend: + xorl %ecx, %eax + xorl %edx, %ebx + movl %eax, 16(%esp) + movl %ebx, 20(%esp) + call des_encrypt3 + movl 16(%esp), %eax + movl 20(%esp), %ebx + movl %eax, (%edi) + movl %ebx, 4(%edi) + jmp .L031finish +.align 16 +.L028decrypt: + andl $4294967288, %ebp + movl 24(%esp), %eax + movl 28(%esp), %ebx + jz .L041decrypt_finish +.L042decrypt_loop: + movl (%esi), %eax + movl 4(%esi), %ebx + movl %eax, 16(%esp) + movl %ebx, 20(%esp) + call des_decrypt3 + movl 16(%esp), %eax + movl 20(%esp), %ebx + movl 24(%esp), %ecx + movl 28(%esp), %edx + xorl %eax, %ecx + xorl %ebx, %edx + movl (%esi), %eax + movl 4(%esi), %ebx + movl %ecx, (%edi) + movl %edx, 4(%edi) + movl %eax, 24(%esp) + movl %ebx, 28(%esp) + addl $8, %esi + addl $8, %edi + subl $8, %ebp + jnz .L042decrypt_loop +.L041decrypt_finish: + movl 60(%esp), %ebp + andl $7, %ebp + jz .L031finish + movl (%esi), %eax + movl 4(%esi), %ebx + movl %eax, 16(%esp) + movl %ebx, 20(%esp) + call des_decrypt3 + movl 16(%esp), %eax + movl 20(%esp), %ebx + movl 24(%esp), %ecx + movl 28(%esp), %edx + xorl %eax, %ecx + xorl %ebx, %edx + movl (%esi), %eax + movl 4(%esi), %ebx +.L043dj7: + rorl $16, %edx + movb %dl, 6(%edi) + shrl $16, %edx +.L044dj6: + movb %dh, 5(%edi) +.L045dj5: + movb %dl, 4(%edi) +.L046dj4: + movl %ecx, (%edi) + jmp .L047djend +.L048dj3: + rorl $16, %ecx + movb %cl, 2(%edi) + sall $16, %ecx +.L049dj2: + movb %ch, 1(%esi) +.L050dj1: + movb %cl, (%esi) +.L047djend: + jmp .L031finish +.align 16 +.L031finish: + movl 76(%esp), %ecx + addl $32, %esp + movl %eax, (%ecx) + movl %ebx, 4(%ecx) + popl %edi + popl %esi + popl %ebx + popl %ebp + ret +.align 16 +.L032cbc_enc_jmp_table: + .long 0 + .long .L040ej1 + .long .L039ej2 + .long .L038ej3 + .long .L036ej4 + .long .L035ej5 + .long .L034ej6 + .long .L033ej7 +.align 16 +.L051cbc_dec_jmp_table: + .long 0 + .long .L050dj1 + .long .L049dj2 + .long .L048dj3 + .long .L046dj4 + .long .L045dj5 + .long .L044dj6 + .long .L043dj7 +.des_ede3_cbc_encrypt_end: + .size des_ede3_cbc_encrypt , .des_ede3_cbc_encrypt_end-des_ede3_cbc_encrypt +.ident "desasm.pl" --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/des/ecb_enc.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,128 @@ +/* crypto/des/ecb_enc.c */ +/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include "des/des_locl.h" +#include "des/spr.h" + +char *libdes_version="libdes v 3.24 - 20-Apr-1996 - eay"; +char *DES_version="DES part of SSLeay 0.8.2b 08-Jan-1998"; + +/* RCSID $Id: ecb_enc.c,v 1.8 2004/08/04 15:57:22 mcr Exp $ */ +/* This function ifdef'ed out for FreeS/WAN project. */ +#ifdef notdef +char *des_options() + { + static int init=1; + static char buf[32]; + + if (init) + { + char *ptr,*unroll,*risc,*size; + + init=0; +#ifdef DES_PTR + ptr="ptr"; +#else + ptr="idx"; +#endif +#if defined(DES_RISC1) || defined(DES_RISC2) +#ifdef DES_RISC1 + risc="risc1"; +#endif +#ifdef DES_RISC2 + risc="risc2"; +#endif +#else + risc="cisc"; +#endif +#ifdef DES_UNROLL + unroll="16"; +#else + unroll="4"; +#endif + if (sizeof(DES_LONG) != sizeof(long)) + size="int"; + else + size="long"; + sprintf(buf,"des(%s,%s,%s,%s)",ptr,risc,unroll,size); + } + return(buf); + } +#endif + + +void des_ecb_encrypt(input, output, ks, enc) +des_cblock (*input); +des_cblock (*output); +des_key_schedule ks; +int enc; + { + register DES_LONG l; + register unsigned char *in,*out; + DES_LONG ll[2]; + + in=(unsigned char *)input; + out=(unsigned char *)output; + c2l(in,l); ll[0]=l; + c2l(in,l); ll[1]=l; + des_encrypt(ll,ks,enc); + l=ll[0]; l2c(l,out); + l=ll[1]; l2c(l,out); + l=ll[0]=ll[1]=0; + } + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/des/ipsec_alg_3des.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,181 @@ +/* + * ipsec_alg 3DES cipher stubs + * + * Copyright (C) 2005 Michael Richardson + * + * Adapted from ipsec_alg_aes.c by JuanJo Ciarlante + * + * ipsec_alg_aes.c,v 1.1.2.1 2003/11/21 18:12:23 jjo Exp + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + */ +#ifndef AUTOCONF_INCLUDED +#include +#endif +#include + +/* + * special case: ipsec core modular with this static algo inside: + * must avoid MODULE magic for this file + */ +#if defined(CONFIG_KLIPS_MODULE) && defined(CONFIG_KLIPS_ENC_3DES) +#undef MODULE +#endif + +#include +#include + +#include /* printk() */ +#include /* error codes */ +#include /* size_t */ +#include + +/* Low freeswan header coupling */ +#include "openswan/ipsec_xform.h" +#include "openswan/ipsec_alg.h" +#include "crypto/des.h" +#include "openswan/ipsec_alg_3des.h" + +#define AES_CONTEXT_T aes_context +static int debug_3des=0; +static int test_3des=0; +static int excl_3des=0; + +#if defined(CONFIG_KLIPS_ENC_3DES_MODULE) +MODULE_AUTHOR("Michael Richardson "); +#ifdef module_param +module_param(debug_3des,int,0600) +module_param(test_des,int,0600) +module_param(excl_des,int,0600) +#else +MODULE_PARM(debug_3des, "i"); +MODULE_PARM(test_des, "i"); +MODULE_PARM(excl_des, "i"); +#endif +#endif + +#define ESP_AES_MAC_KEY_SZ 16 /* 128 bit MAC key */ +#define ESP_AES_MAC_BLK_LEN 16 /* 128 bit block */ + +static int _3des_set_key(struct ipsec_alg_enc *alg, + __u8 * key_e, const __u8 * key, + size_t keysize) +{ + int ret = 0; + TripleDES_context *ctx = (TripleDES_context*)key_e; + + if(keysize != 192/8) { + return EINVAL; + } + + des_set_key((des_cblock *)(key + DES_KEY_SZ*0), ctx->s1); + des_set_key((des_cblock *)(key + DES_KEY_SZ*1), ctx->s2); + des_set_key((des_cblock *)(key + DES_KEY_SZ*2), ctx->s3); + + if (debug_3des > 0) + printk(KERN_DEBUG "klips_debug:_3des_set_key:" + "ret=%d key_e=%p key=%p keysize=%ld\n", + ret, key_e, key, (unsigned long int) keysize); + return ret; +} + +static int _3des_cbc_encrypt(struct ipsec_alg_enc *alg, + __u8 * key_e, + __u8 * in, + int ilen, const __u8 * iv, + int encrypt) +{ + TripleDES_context *ctx=(TripleDES_context*)key_e; + des_cblock miv; + + memcpy(&miv, iv, sizeof(miv)); + + if (debug_3des > 0) + printk(KERN_DEBUG "klips_debug:_aes_cbc_encrypt:" + "key_e=%p in=%p ilen=%d iv=%p encrypt=%d\n", + key_e, in, ilen, iv, encrypt); + + des_ede3_cbc_encrypt((des_cblock *)in, + (des_cblock *)in, + ilen, + ctx->s1, + ctx->s2, + ctx->s3, + &miv, encrypt); + return 1; +} + +static struct ipsec_alg_enc ipsec_alg_3DES = { + ixt_common: { ixt_version: IPSEC_ALG_VERSION, + ixt_refcnt: ATOMIC_INIT(0), + ixt_name: "3des", + ixt_blocksize: ESP_3DES_CBC_BLK_LEN, + ixt_support: { + ias_exttype: IPSEC_ALG_TYPE_ENCRYPT, + ias_id: ESP_3DES, + ias_keyminbits: ESP_3DES_KEY_SZ*8, + ias_keymaxbits: ESP_3DES_KEY_SZ*8, + }, + }, +#if defined(MODULE_KLIPS_ENC_3DES_MODULE) + ixt_module: THIS_MODULE, +#endif + ixt_e_keylen: ESP_3DES_KEY_SZ*8, + ixt_e_ctx_size: sizeof(TripleDES_context), + ixt_e_set_key: _3des_set_key, + ixt_e_cbc_encrypt:_3des_cbc_encrypt, +}; + +#if defined(CONFIG_KLIPS_ENC_3DES_MODULE) +IPSEC_ALG_MODULE_INIT_MOD( ipsec_3des_init ) +#else +IPSEC_ALG_MODULE_INIT_STATIC( ipsec_3des_init ) +#endif +{ + int ret, test_ret; + + if (excl_3des) ipsec_alg_3DES.ixt_common.ixt_state |= IPSEC_ALG_ST_EXCL; + ret=register_ipsec_alg_enc(&ipsec_alg_3DES); + printk("ipsec_3des_init(alg_type=%d alg_id=%d name=%s): ret=%d\n", + ipsec_alg_3DES.ixt_common.ixt_support.ias_exttype, + ipsec_alg_3DES.ixt_common.ixt_support.ias_id, + ipsec_alg_3DES.ixt_common.ixt_name, + ret); + if (ret==0 && test_3des) { + test_ret=ipsec_alg_test( + ipsec_alg_3DES.ixt_common.ixt_support.ias_exttype, + ipsec_alg_3DES.ixt_common.ixt_support.ias_id, + test_3des); + printk("ipsec_aes_init(alg_type=%d alg_id=%d): test_ret=%d\n", + ipsec_alg_3DES.ixt_common.ixt_support.ias_exttype, + ipsec_alg_3DES.ixt_common.ixt_support.ias_id, + test_ret); + } + return ret; +} + +#if defined(CONFIG_KLIPS_ENC_3DES_MODULE) +IPSEC_ALG_MODULE_EXIT_MOD( ipsec_3des_fini ) +#else +IPSEC_ALG_MODULE_EXIT_STATIC( ipsec_3des_fini ) +#endif +{ + unregister_ipsec_alg_enc(&ipsec_alg_3DES); + return; +} + +/* Dual, because 3des code is 4-clause BSD licensed */ +#ifdef MODULE_LICENSE +MODULE_LICENSE("Dual BSD/GPL"); +#endif + + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/des/set_key.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,246 @@ +/* crypto/des/set_key.c */ +/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +/* set_key.c v 1.4 eay 24/9/91 + * 1.4 Speed up by 400% :-) + * 1.3 added register declarations. + * 1.2 unrolled make_key_sched a bit more + * 1.1 added norm_expand_bits + * 1.0 First working version + */ +#include "des/des_locl.h" +#include "des/podd.h" +#include "des/sk.h" + +#ifndef NOPROTO +static int check_parity(des_cblock (*key)); +#else +static int check_parity(); +#endif + +int des_check_key=0; + +void des_set_odd_parity(key) +des_cblock (*key); + { + int i; + + for (i=0; i>(n))^(b))&(m)),\ + * (b)^=(t),\ + * (a)=((a)^((t)<<(n)))) + */ + +#define HPERM_OP(a,t,n,m) ((t)=((((a)<<(16-(n)))^(a))&(m)),\ + (a)=(a)^(t)^(t>>(16-(n)))) + +/* return 0 if key parity is odd (correct), + * return -1 if key parity error, + * return -2 if illegal weak key. + */ +int des_set_key(key, schedule) +des_cblock (*key); +des_key_schedule schedule; + { + static int shifts2[16]={0,0,1,1,1,1,1,1,0,1,1,1,1,1,1,0}; + register DES_LONG c,d,t,s,t2; + register unsigned char *in; + register DES_LONG *k; + register int i; + + if (des_check_key) + { + if (!check_parity(key)) + return(-1); + + if (des_is_weak_key(key)) + return(-2); + } + + k=(DES_LONG *)schedule; + in=(unsigned char *)key; + + c2l(in,c); + c2l(in,d); + + /* do PC1 in 60 simple operations */ +/* PERM_OP(d,c,t,4,0x0f0f0f0fL); + HPERM_OP(c,t,-2, 0xcccc0000L); + HPERM_OP(c,t,-1, 0xaaaa0000L); + HPERM_OP(c,t, 8, 0x00ff0000L); + HPERM_OP(c,t,-1, 0xaaaa0000L); + HPERM_OP(d,t,-8, 0xff000000L); + HPERM_OP(d,t, 8, 0x00ff0000L); + HPERM_OP(d,t, 2, 0x33330000L); + d=((d&0x00aa00aaL)<<7L)|((d&0x55005500L)>>7L)|(d&0xaa55aa55L); + d=(d>>8)|((c&0xf0000000L)>>4); + c&=0x0fffffffL; */ + + /* I now do it in 47 simple operations :-) + * Thanks to John Fletcher (john_fletcher@lccmail.ocf.llnl.gov) + * for the inspiration. :-) */ + PERM_OP (d,c,t,4,0x0f0f0f0fL); + HPERM_OP(c,t,-2,0xcccc0000L); + HPERM_OP(d,t,-2,0xcccc0000L); + PERM_OP (d,c,t,1,0x55555555L); + PERM_OP (c,d,t,8,0x00ff00ffL); + PERM_OP (d,c,t,1,0x55555555L); + d= (((d&0x000000ffL)<<16L)| (d&0x0000ff00L) | + ((d&0x00ff0000L)>>16L)|((c&0xf0000000L)>>4L)); + c&=0x0fffffffL; + + for (i=0; i>2L)|(c<<26L)); d=((d>>2L)|(d<<26L)); } + else + { c=((c>>1L)|(c<<27L)); d=((d>>1L)|(d<<27L)); } + c&=0x0fffffffL; + d&=0x0fffffffL; + /* could be a few less shifts but I am to lazy at this + * point in time to investigate */ + s= des_skb[0][ (c )&0x3f ]| + des_skb[1][((c>> 6)&0x03)|((c>> 7L)&0x3c)]| + des_skb[2][((c>>13)&0x0f)|((c>>14L)&0x30)]| + des_skb[3][((c>>20)&0x01)|((c>>21L)&0x06) | + ((c>>22L)&0x38)]; + t= des_skb[4][ (d )&0x3f ]| + des_skb[5][((d>> 7L)&0x03)|((d>> 8L)&0x3c)]| + des_skb[6][ (d>>15L)&0x3f ]| + des_skb[7][((d>>21L)&0x0f)|((d>>22L)&0x30)]; + + /* table contained 0213 4657 */ + t2=((t<<16L)|(s&0x0000ffffL))&0xffffffffL; + *(k++)=ROTATE(t2,30)&0xffffffffL; + + t2=((s>>16L)|(t&0xffff0000L)); + *(k++)=ROTATE(t2,26)&0xffffffffL; + } + return(0); + } + +int des_key_sched(key, schedule) +des_cblock (*key); +des_key_schedule schedule; + { + return(des_set_key(key,schedule)); + } --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/goodmask.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,100 @@ +/* + * minor utilities for subnet-mask manipulation + * Copyright (C) 1998, 1999 Henry Spencer. + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + * License for more details. + * + * RCSID $Id: goodmask.c,v 1.12 2004/07/10 07:43:47 mcr Exp $ + */ +#include "openswan.h" + +#ifndef ABITS +#define ABITS 32 /* bits in an IPv4 address */ +#endif + +/* + - goodmask - is this a good (^1*0*$) subnet mask? + * You are not expected to understand this. See Henry S. Warren Jr, + * "Functions realizable with word-parallel logical and two's-complement + * addition instructions", CACM 20.6 (June 1977), p.439. + */ +int /* predicate */ +goodmask(mask) +struct in_addr mask; +{ + unsigned long x = ntohl(mask.s_addr); + /* clear rightmost contiguous string of 1-bits */ +# define CRCS1B(x) (((x|(x-1))+1)&x) +# define TOPBIT (1UL << 31) + + /* either zero, or has one string of 1-bits which is left-justified */ + if (x == 0 || (CRCS1B(x) == 0 && (x&TOPBIT))) + return 1; + return 0; +} + +/* + - masktobits - how many bits in this mask? + * The algorithm is essentially a binary search, but highly optimized + * for this particular task. + */ +int /* -1 means !goodmask() */ +masktobits(mask) +struct in_addr mask; +{ + unsigned long m = ntohl(mask.s_addr); + int masklen; + + if (!goodmask(mask)) + return -1; + + if (m&0x00000001UL) + return 32; + masklen = 0; + if (m&(0x0000ffffUL<<1)) { /* <<1 for 1-origin numbering */ + masklen |= 0x10; + m <<= 16; + } + if (m&(0x00ff0000UL<<1)) { + masklen |= 0x08; + m <<= 8; + } + if (m&(0x0f000000UL<<1)) { + masklen |= 0x04; + m <<= 4; + } + if (m&(0x30000000UL<<1)) { + masklen |= 0x02; + m <<= 2; + } + if (m&(0x40000000UL<<1)) + masklen |= 0x01; + + return masklen; +} + +/* + - bitstomask - return a mask with this many high bits on + */ +struct in_addr +bitstomask(n) +int n; +{ + struct in_addr result; + + if (n > 0 && n <= ABITS) + result.s_addr = htonl(~((1UL << (ABITS - n)) - 1)); + else if (n == 0) + result.s_addr = 0; + else + result.s_addr = 0; /* best error report we can do */ + return result; +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/infblock.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,403 @@ +/* infblock.c -- interpret and process block types to last block + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include +#include "infblock.h" +#include "inftrees.h" +#include "infcodes.h" +#include "infutil.h" + +struct inflate_codes_state {int dummy;}; /* for buggy compilers */ + +/* simplify the use of the inflate_huft type with some defines */ +#define exop word.what.Exop +#define bits word.what.Bits + +/* Table for deflate from PKZIP's appnote.txt. */ +local const uInt border[] = { /* Order of the bit length code lengths */ + 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; + +/* + Notes beyond the 1.93a appnote.txt: + + 1. Distance pointers never point before the beginning of the output + stream. + 2. Distance pointers can point back across blocks, up to 32k away. + 3. There is an implied maximum of 7 bits for the bit length table and + 15 bits for the actual data. + 4. If only one code exists, then it is encoded using one bit. (Zero + would be more efficient, but perhaps a little confusing.) If two + codes exist, they are coded using one bit each (0 and 1). + 5. There is no way of sending zero distance codes--a dummy must be + sent if there are none. (History: a pre 2.0 version of PKZIP would + store blocks with no distance codes, but this was discovered to be + too harsh a criterion.) Valid only for 1.93a. 2.04c does allow + zero distance codes, which is sent as one code of zero bits in + length. + 6. There are up to 286 literal/length codes. Code 256 represents the + end-of-block. Note however that the static length tree defines + 288 codes just to fill out the Huffman codes. Codes 286 and 287 + cannot be used though, since there is no length base or extra bits + defined for them. Similarily, there are up to 30 distance codes. + However, static trees define 32 codes (all 5 bits) to fill out the + Huffman codes, but the last two had better not show up in the data. + 7. Unzip can check dynamic Huffman blocks for complete code sets. + The exception is that a single code would not be complete (see #4). + 8. The five bits following the block type is really the number of + literal codes sent minus 257. + 9. Length codes 8,16,16 are interpreted as 13 length codes of 8 bits + (1+6+6). Therefore, to output three times the length, you output + three codes (1+1+1), whereas to output four times the same length, + you only need two codes (1+3). Hmm. + 10. In the tree reconstruction algorithm, Code = Code + Increment + only if BitLength(i) is not zero. (Pretty obvious.) + 11. Correction: 4 Bits: # of Bit Length codes - 4 (4 - 19) + 12. Note: length code 284 can represent 227-258, but length code 285 + really is 258. The last length deserves its own, short code + since it gets used a lot in very redundant files. The length + 258 is special since 258 - 3 (the min match length) is 255. + 13. The literal/length and distance code bit lengths are read as a + single stream of lengths. It is possible (and advantageous) for + a repeat code (16, 17, or 18) to go across the boundary between + the two sets of lengths. + */ + + +void inflate_blocks_reset(s, z, c) +inflate_blocks_statef *s; +z_streamp z; +uLongf *c; +{ + if (c != Z_NULL) + *c = s->check; + if (s->mode == BTREE || s->mode == DTREE) + ZFREE(z, s->sub.trees.blens); + if (s->mode == CODES) + inflate_codes_free(s->sub.decode.codes, z); + s->mode = TYPE; + s->bitk = 0; + s->bitb = 0; + s->read = s->write = s->window; + if (s->checkfn != Z_NULL) + z->adler = s->check = (*s->checkfn)(0L, (const Bytef *)Z_NULL, 0); + Tracev((stderr, "inflate: blocks reset\n")); +} + + +inflate_blocks_statef *inflate_blocks_new(z, c, w) +z_streamp z; +check_func c; +uInt w; +{ + inflate_blocks_statef *s; + + if ((s = (inflate_blocks_statef *)ZALLOC + (z,1,sizeof(struct inflate_blocks_state))) == Z_NULL) + return s; + if ((s->hufts = + (inflate_huft *)ZALLOC(z, sizeof(inflate_huft), MANY)) == Z_NULL) + { + ZFREE(z, s); + return Z_NULL; + } + if ((s->window = (Bytef *)ZALLOC(z, 1, w)) == Z_NULL) + { + ZFREE(z, s->hufts); + ZFREE(z, s); + return Z_NULL; + } + s->end = s->window + w; + s->checkfn = c; + s->mode = TYPE; + Tracev((stderr, "inflate: blocks allocated\n")); + inflate_blocks_reset(s, z, Z_NULL); + return s; +} + + +int inflate_blocks(s, z, r) +inflate_blocks_statef *s; +z_streamp z; +int r; +{ + uInt t; /* temporary storage */ + uLong b; /* bit buffer */ + uInt k; /* bits in bit buffer */ + Bytef *p; /* input data pointer */ + uInt n; /* bytes available there */ + Bytef *q; /* output window write pointer */ + uInt m; /* bytes to end of window or read pointer */ + + /* copy input/output information to locals (UPDATE macro restores) */ + LOAD + + /* process input based on current state */ + while (1) switch (s->mode) + { + case TYPE: + NEEDBITS(3) + t = (uInt)b & 7; + s->last = t & 1; + switch (t >> 1) + { + case 0: /* stored */ + Tracev((stderr, "inflate: stored block%s\n", + s->last ? " (last)" : "")); + DUMPBITS(3) + t = k & 7; /* go to byte boundary */ + DUMPBITS(t) + s->mode = LENS; /* get length of stored block */ + break; + case 1: /* fixed */ + Tracev((stderr, "inflate: fixed codes block%s\n", + s->last ? " (last)" : "")); + { + uInt bl, bd; + inflate_huft *tl, *td; + + inflate_trees_fixed(&bl, &bd, &tl, &td, z); + s->sub.decode.codes = inflate_codes_new(bl, bd, tl, td, z); + if (s->sub.decode.codes == Z_NULL) + { + r = Z_MEM_ERROR; + LEAVE + } + } + DUMPBITS(3) + s->mode = CODES; + break; + case 2: /* dynamic */ + Tracev((stderr, "inflate: dynamic codes block%s\n", + s->last ? " (last)" : "")); + DUMPBITS(3) + s->mode = TABLE; + break; + case 3: /* illegal */ + DUMPBITS(3) + s->mode = BAD; + z->msg = (char*)"invalid block type"; + r = Z_DATA_ERROR; + LEAVE + } + break; + case LENS: + NEEDBITS(32) + if ((((~b) >> 16) & 0xffff) != (b & 0xffff)) + { + s->mode = BAD; + z->msg = (char*)"invalid stored block lengths"; + r = Z_DATA_ERROR; + LEAVE + } + s->sub.left = (uInt)b & 0xffff; + b = k = 0; /* dump bits */ + Tracev((stderr, "inflate: stored length %u\n", s->sub.left)); + s->mode = s->sub.left ? STORED : (s->last ? DRY : TYPE); + break; + case STORED: + if (n == 0) + LEAVE + NEEDOUT + t = s->sub.left; + if (t > n) t = n; + if (t > m) t = m; + zmemcpy(q, p, t); + p += t; n -= t; + q += t; m -= t; + if ((s->sub.left -= t) != 0) + break; + Tracev((stderr, "inflate: stored end, %lu total out\n", + z->total_out + (q >= s->read ? q - s->read : + (s->end - s->read) + (q - s->window)))); + s->mode = s->last ? DRY : TYPE; + break; + case TABLE: + NEEDBITS(14) + s->sub.trees.table = t = (uInt)b & 0x3fff; +#ifndef PKZIP_BUG_WORKAROUND + if ((t & 0x1f) > 29 || ((t >> 5) & 0x1f) > 29) + { + s->mode = BAD; + z->msg = (char*)"too many length or distance symbols"; + r = Z_DATA_ERROR; + LEAVE + } +#endif + t = 258 + (t & 0x1f) + ((t >> 5) & 0x1f); + if ((s->sub.trees.blens = (uIntf*)ZALLOC(z, t, sizeof(uInt))) == Z_NULL) + { + r = Z_MEM_ERROR; + LEAVE + } + DUMPBITS(14) + s->sub.trees.index = 0; + Tracev((stderr, "inflate: table sizes ok\n")); + s->mode = BTREE; + case BTREE: + while (s->sub.trees.index < 4 + (s->sub.trees.table >> 10)) + { + NEEDBITS(3) + s->sub.trees.blens[border[s->sub.trees.index++]] = (uInt)b & 7; + DUMPBITS(3) + } + while (s->sub.trees.index < 19) + s->sub.trees.blens[border[s->sub.trees.index++]] = 0; + s->sub.trees.bb = 7; + t = inflate_trees_bits(s->sub.trees.blens, &s->sub.trees.bb, + &s->sub.trees.tb, s->hufts, z); + if (t != Z_OK) + { + r = t; + if (r == Z_DATA_ERROR) + { + ZFREE(z, s->sub.trees.blens); + s->mode = BAD; + } + LEAVE + } + s->sub.trees.index = 0; + Tracev((stderr, "inflate: bits tree ok\n")); + s->mode = DTREE; + case DTREE: + while (t = s->sub.trees.table, + s->sub.trees.index < 258 + (t & 0x1f) + ((t >> 5) & 0x1f)) + { + inflate_huft *h; + uInt i, j, c; + + t = s->sub.trees.bb; + NEEDBITS(t) + h = s->sub.trees.tb + ((uInt)b & inflate_mask[t]); + t = h->bits; + c = h->base; + if (c < 16) + { + DUMPBITS(t) + s->sub.trees.blens[s->sub.trees.index++] = c; + } + else /* c == 16..18 */ + { + i = c == 18 ? 7 : c - 14; + j = c == 18 ? 11 : 3; + NEEDBITS(t + i) + DUMPBITS(t) + j += (uInt)b & inflate_mask[i]; + DUMPBITS(i) + i = s->sub.trees.index; + t = s->sub.trees.table; + if (i + j > 258 + (t & 0x1f) + ((t >> 5) & 0x1f) || + (c == 16 && i < 1)) + { + ZFREE(z, s->sub.trees.blens); + s->mode = BAD; + z->msg = (char*)"invalid bit length repeat"; + r = Z_DATA_ERROR; + LEAVE + } + c = c == 16 ? s->sub.trees.blens[i - 1] : 0; + do { + s->sub.trees.blens[i++] = c; + } while (--j); + s->sub.trees.index = i; + } + } + s->sub.trees.tb = Z_NULL; + { + uInt bl, bd; + inflate_huft *tl, *td; + inflate_codes_statef *c; + + bl = 9; /* must be <= 9 for lookahead assumptions */ + bd = 6; /* must be <= 9 for lookahead assumptions */ + t = s->sub.trees.table; + t = inflate_trees_dynamic(257 + (t & 0x1f), 1 + ((t >> 5) & 0x1f), + s->sub.trees.blens, &bl, &bd, &tl, &td, + s->hufts, z); + if (t != Z_OK) + { + if (t == (uInt)Z_DATA_ERROR) + { + ZFREE(z, s->sub.trees.blens); + s->mode = BAD; + } + r = t; + LEAVE + } + Tracev((stderr, "inflate: trees ok\n")); + if ((c = inflate_codes_new(bl, bd, tl, td, z)) == Z_NULL) + { + r = Z_MEM_ERROR; + LEAVE + } + s->sub.decode.codes = c; + } + ZFREE(z, s->sub.trees.blens); + s->mode = CODES; + case CODES: + UPDATE + if ((r = inflate_codes(s, z, r)) != Z_STREAM_END) + return inflate_flush(s, z, r); + r = Z_OK; + inflate_codes_free(s->sub.decode.codes, z); + LOAD + Tracev((stderr, "inflate: codes end, %lu total out\n", + z->total_out + (q >= s->read ? q - s->read : + (s->end - s->read) + (q - s->window)))); + if (!s->last) + { + s->mode = TYPE; + break; + } + s->mode = DRY; + case DRY: + FLUSH + if (s->read != s->write) + LEAVE + s->mode = DONE; + case DONE: + r = Z_STREAM_END; + LEAVE + case BAD: + r = Z_DATA_ERROR; + LEAVE + default: + r = Z_STREAM_ERROR; + LEAVE + } +} + + +int inflate_blocks_free(s, z) +inflate_blocks_statef *s; +z_streamp z; +{ + inflate_blocks_reset(s, z, Z_NULL); + ZFREE(z, s->window); + ZFREE(z, s->hufts); + ZFREE(z, s); + Tracev((stderr, "inflate: blocks freed\n")); + return Z_OK; +} + + +void inflate_set_dictionary(s, d, n) +inflate_blocks_statef *s; +const Bytef *d; +uInt n; +{ + zmemcpy(s->window, d, n); + s->read = s->write = s->window + n; +} + + +/* Returns true if inflate is currently at the end of a block generated + * by Z_SYNC_FLUSH or Z_FULL_FLUSH. + * IN assertion: s != Z_NULL + */ +int inflate_blocks_sync_point(s) +inflate_blocks_statef *s; +{ + return s->mode == LENS; +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/infblock.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,39 @@ +/* infblock.h -- header to use infblock.c + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +struct inflate_blocks_state; +typedef struct inflate_blocks_state FAR inflate_blocks_statef; + +extern inflate_blocks_statef * inflate_blocks_new OF(( + z_streamp z, + check_func c, /* check function */ + uInt w)); /* window size */ + +extern int inflate_blocks OF(( + inflate_blocks_statef *, + z_streamp , + int)); /* initial return code */ + +extern void inflate_blocks_reset OF(( + inflate_blocks_statef *, + z_streamp , + uLongf *)); /* check value on output */ + +extern int inflate_blocks_free OF(( + inflate_blocks_statef *, + z_streamp)); + +extern void inflate_set_dictionary OF(( + inflate_blocks_statef *s, + const Bytef *d, /* dictionary */ + uInt n)); /* dictionary length */ + +extern int inflate_blocks_sync_point OF(( + inflate_blocks_statef *s)); --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/infcodes.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,251 @@ +/* infcodes.c -- process literals and length/distance pairs + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include +#include "inftrees.h" +#include "infblock.h" +#include "infcodes.h" +#include "infutil.h" +#include "inffast.h" + +/* simplify the use of the inflate_huft type with some defines */ +#define exop word.what.Exop +#define bits word.what.Bits + +typedef enum { /* waiting for "i:"=input, "o:"=output, "x:"=nothing */ + START, /* x: set up for LEN */ + LEN, /* i: get length/literal/eob next */ + LENEXT, /* i: getting length extra (have base) */ + DIST, /* i: get distance next */ + DISTEXT, /* i: getting distance extra */ + COPY, /* o: copying bytes in window, waiting for space */ + LIT, /* o: got literal, waiting for output space */ + WASH, /* o: got eob, possibly still output waiting */ + END, /* x: got eob and all data flushed */ + BADCODE} /* x: got error */ +inflate_codes_mode; + +/* inflate codes private state */ +struct inflate_codes_state { + + /* mode */ + inflate_codes_mode mode; /* current inflate_codes mode */ + + /* mode dependent information */ + uInt len; + union { + struct { + inflate_huft *tree; /* pointer into tree */ + uInt need; /* bits needed */ + } code; /* if LEN or DIST, where in tree */ + uInt lit; /* if LIT, literal */ + struct { + uInt get; /* bits to get for extra */ + uInt dist; /* distance back to copy from */ + } copy; /* if EXT or COPY, where and how much */ + } sub; /* submode */ + + /* mode independent information */ + Byte lbits; /* ltree bits decoded per branch */ + Byte dbits; /* dtree bits decoder per branch */ + inflate_huft *ltree; /* literal/length/eob tree */ + inflate_huft *dtree; /* distance tree */ + +}; + + +inflate_codes_statef *inflate_codes_new(bl, bd, tl, td, z) +uInt bl, bd; +inflate_huft *tl; +inflate_huft *td; /* need separate declaration for Borland C++ */ +z_streamp z; +{ + inflate_codes_statef *c; + + if ((c = (inflate_codes_statef *) + ZALLOC(z,1,sizeof(struct inflate_codes_state))) != Z_NULL) + { + c->mode = START; + c->lbits = (Byte)bl; + c->dbits = (Byte)bd; + c->ltree = tl; + c->dtree = td; + Tracev((stderr, "inflate: codes new\n")); + } + return c; +} + + +int inflate_codes(s, z, r) +inflate_blocks_statef *s; +z_streamp z; +int r; +{ + uInt j; /* temporary storage */ + inflate_huft *t; /* temporary pointer */ + uInt e; /* extra bits or operation */ + uLong b; /* bit buffer */ + uInt k; /* bits in bit buffer */ + Bytef *p; /* input data pointer */ + uInt n; /* bytes available there */ + Bytef *q; /* output window write pointer */ + uInt m; /* bytes to end of window or read pointer */ + Bytef *f; /* pointer to copy strings from */ + inflate_codes_statef *c = s->sub.decode.codes; /* codes state */ + + /* copy input/output information to locals (UPDATE macro restores) */ + LOAD + + /* process input and output based on current state */ + while (1) switch (c->mode) + { /* waiting for "i:"=input, "o:"=output, "x:"=nothing */ + case START: /* x: set up for LEN */ +#ifndef SLOW + if (m >= 258 && n >= 10) + { + UPDATE + r = inflate_fast(c->lbits, c->dbits, c->ltree, c->dtree, s, z); + LOAD + if (r != Z_OK) + { + c->mode = r == Z_STREAM_END ? WASH : BADCODE; + break; + } + } +#endif /* !SLOW */ + c->sub.code.need = c->lbits; + c->sub.code.tree = c->ltree; + c->mode = LEN; + case LEN: /* i: get length/literal/eob next */ + j = c->sub.code.need; + NEEDBITS(j) + t = c->sub.code.tree + ((uInt)b & inflate_mask[j]); + DUMPBITS(t->bits) + e = (uInt)(t->exop); + if (e == 0) /* literal */ + { + c->sub.lit = t->base; + Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ? + "inflate: literal '%c'\n" : + "inflate: literal 0x%02x\n", t->base)); + c->mode = LIT; + break; + } + if (e & 16) /* length */ + { + c->sub.copy.get = e & 15; + c->len = t->base; + c->mode = LENEXT; + break; + } + if ((e & 64) == 0) /* next table */ + { + c->sub.code.need = e; + c->sub.code.tree = t + t->base; + break; + } + if (e & 32) /* end of block */ + { + Tracevv((stderr, "inflate: end of block\n")); + c->mode = WASH; + break; + } + c->mode = BADCODE; /* invalid code */ + z->msg = (char*)"invalid literal/length code"; + r = Z_DATA_ERROR; + LEAVE + case LENEXT: /* i: getting length extra (have base) */ + j = c->sub.copy.get; + NEEDBITS(j) + c->len += (uInt)b & inflate_mask[j]; + DUMPBITS(j) + c->sub.code.need = c->dbits; + c->sub.code.tree = c->dtree; + Tracevv((stderr, "inflate: length %u\n", c->len)); + c->mode = DIST; + case DIST: /* i: get distance next */ + j = c->sub.code.need; + NEEDBITS(j) + t = c->sub.code.tree + ((uInt)b & inflate_mask[j]); + DUMPBITS(t->bits) + e = (uInt)(t->exop); + if (e & 16) /* distance */ + { + c->sub.copy.get = e & 15; + c->sub.copy.dist = t->base; + c->mode = DISTEXT; + break; + } + if ((e & 64) == 0) /* next table */ + { + c->sub.code.need = e; + c->sub.code.tree = t + t->base; + break; + } + c->mode = BADCODE; /* invalid code */ + z->msg = (char*)"invalid distance code"; + r = Z_DATA_ERROR; + LEAVE + case DISTEXT: /* i: getting distance extra */ + j = c->sub.copy.get; + NEEDBITS(j) + c->sub.copy.dist += (uInt)b & inflate_mask[j]; + DUMPBITS(j) + Tracevv((stderr, "inflate: distance %u\n", c->sub.copy.dist)); + c->mode = COPY; + case COPY: /* o: copying bytes in window, waiting for space */ + f = q - c->sub.copy.dist; + while (f < s->window) /* modulo window size-"while" instead */ + f += s->end - s->window; /* of "if" handles invalid distances */ + while (c->len) + { + NEEDOUT + OUTBYTE(*f++) + if (f == s->end) + f = s->window; + c->len--; + } + c->mode = START; + break; + case LIT: /* o: got literal, waiting for output space */ + NEEDOUT + OUTBYTE(c->sub.lit) + c->mode = START; + break; + case WASH: /* o: got eob, possibly more output */ + if (k > 7) /* return unused byte, if any */ + { + Assert(k < 16, "inflate_codes grabbed too many bytes") + k -= 8; + n++; + p--; /* can always return one */ + } + FLUSH + if (s->read != s->write) + LEAVE + c->mode = END; + case END: + r = Z_STREAM_END; + LEAVE + case BADCODE: /* x: got error */ + r = Z_DATA_ERROR; + LEAVE + default: + r = Z_STREAM_ERROR; + LEAVE + } +#ifdef NEED_DUMMY_RETURN + return Z_STREAM_ERROR; /* Some dumb compilers complain without this */ +#endif +} + + +void inflate_codes_free(c, z) +inflate_codes_statef *c; +z_streamp z; +{ + ZFREE(z, c); + Tracev((stderr, "inflate: codes free\n")); +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/infcodes.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,31 @@ +/* infcodes.h -- header to use infcodes.c + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +#ifndef _INFCODES_H +#define _INFCODES_H + +struct inflate_codes_state; +typedef struct inflate_codes_state FAR inflate_codes_statef; + +extern inflate_codes_statef *inflate_codes_new OF(( + uInt, uInt, + inflate_huft *, inflate_huft *, + z_streamp )); + +extern int inflate_codes OF(( + inflate_blocks_statef *, + z_streamp , + int)); + +extern void inflate_codes_free OF(( + inflate_codes_statef *, + z_streamp )); + +#endif /* _INFCODES_H */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/inffast.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,183 @@ +/* inffast.c -- process literals and length/distance pairs fast + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include +#include "inftrees.h" +#include "infblock.h" +#include "infcodes.h" +#include "infutil.h" +#include "inffast.h" + +struct inflate_codes_state {int dummy;}; /* for buggy compilers */ + +/* simplify the use of the inflate_huft type with some defines */ +#define exop word.what.Exop +#define bits word.what.Bits + +/* macros for bit input with no checking and for returning unused bytes */ +#define GRABBITS(j) {while(k<(j)){b|=((uLong)NEXTBYTE)<avail_in-n;c=(k>>3)>3:c;n+=c;p-=c;k-=c<<3;} + +/* Called with number of bytes left to write in window at least 258 + (the maximum string length) and number of input bytes available + at least ten. The ten bytes are six bytes for the longest length/ + distance pair plus four bytes for overloading the bit buffer. */ + +int inflate_fast(bl, bd, tl, td, s, z) +uInt bl, bd; +inflate_huft *tl; +inflate_huft *td; /* need separate declaration for Borland C++ */ +inflate_blocks_statef *s; +z_streamp z; +{ + inflate_huft *t; /* temporary pointer */ + uInt e; /* extra bits or operation */ + uLong b; /* bit buffer */ + uInt k; /* bits in bit buffer */ + Bytef *p; /* input data pointer */ + uInt n; /* bytes available there */ + Bytef *q; /* output window write pointer */ + uInt m; /* bytes to end of window or read pointer */ + uInt ml; /* mask for literal/length tree */ + uInt md; /* mask for distance tree */ + uInt c; /* bytes to copy */ + uInt d; /* distance back to copy from */ + Bytef *r; /* copy source pointer */ + + /* load input, output, bit values */ + LOAD + + /* initialize masks */ + ml = inflate_mask[bl]; + md = inflate_mask[bd]; + + /* do until not enough input or output space for fast loop */ + do { /* assume called with m >= 258 && n >= 10 */ + /* get literal/length code */ + GRABBITS(20) /* max bits for literal/length code */ + if ((e = (t = tl + ((uInt)b & ml))->exop) == 0) + { + DUMPBITS(t->bits) + Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ? + "inflate: * literal '%c'\n" : + "inflate: * literal 0x%02x\n", t->base)); + *q++ = (Byte)t->base; + m--; + continue; + } + do { + DUMPBITS(t->bits) + if (e & 16) + { + /* get extra bits for length */ + e &= 15; + c = t->base + ((uInt)b & inflate_mask[e]); + DUMPBITS(e) + Tracevv((stderr, "inflate: * length %u\n", c)); + + /* decode distance base of block to copy */ + GRABBITS(15); /* max bits for distance code */ + e = (t = td + ((uInt)b & md))->exop; + do { + DUMPBITS(t->bits) + if (e & 16) + { + /* get extra bits to add to distance base */ + e &= 15; + GRABBITS(e) /* get extra bits (up to 13) */ + d = t->base + ((uInt)b & inflate_mask[e]); + DUMPBITS(e) + Tracevv((stderr, "inflate: * distance %u\n", d)); + + /* do the copy */ + m -= c; + r = q - d; + if (r < s->window) /* wrap if needed */ + { + do { + r += s->end - s->window; /* force pointer in window */ + } while (r < s->window); /* covers invalid distances */ + e = s->end - r; + if (c > e) + { + c -= e; /* wrapped copy */ + do { + *q++ = *r++; + } while (--e); + r = s->window; + do { + *q++ = *r++; + } while (--c); + } + else /* normal copy */ + { + *q++ = *r++; c--; + *q++ = *r++; c--; + do { + *q++ = *r++; + } while (--c); + } + } + else /* normal copy */ + { + *q++ = *r++; c--; + *q++ = *r++; c--; + do { + *q++ = *r++; + } while (--c); + } + break; + } + else if ((e & 64) == 0) + { + t += t->base; + e = (t += ((uInt)b & inflate_mask[e]))->exop; + } + else + { + z->msg = (char*)"invalid distance code"; + UNGRAB + UPDATE + return Z_DATA_ERROR; + } + } while (1); + break; + } + if ((e & 64) == 0) + { + t += t->base; + if ((e = (t += ((uInt)b & inflate_mask[e]))->exop) == 0) + { + DUMPBITS(t->bits) + Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ? + "inflate: * literal '%c'\n" : + "inflate: * literal 0x%02x\n", t->base)); + *q++ = (Byte)t->base; + m--; + break; + } + } + else if (e & 32) + { + Tracevv((stderr, "inflate: * end of block\n")); + UNGRAB + UPDATE + return Z_STREAM_END; + } + else + { + z->msg = (char*)"invalid literal/length code"; + UNGRAB + UPDATE + return Z_DATA_ERROR; + } + } while (1); + } while (m >= 258 && n >= 10); + + /* not enough input or output--restore pointers and return */ + UNGRAB + UPDATE + return Z_OK; +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/inffast.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,22 @@ +/* inffast.h -- header to use inffast.c + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +#ifndef _INFFAST_H +#define _INFFAST_H + +extern int inflate_fast OF(( + uInt, + uInt, + inflate_huft *, + inflate_huft *, + inflate_blocks_statef *, + z_streamp )); + +#endif /* _INFFAST_H */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/inffixed.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,151 @@ +/* inffixed.h -- table for decoding fixed codes + * Generated automatically by the maketree.c program + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +local uInt fixed_bl = 9; +local uInt fixed_bd = 5; +local inflate_huft fixed_tl[] = { + {{{96,7}},256}, {{{0,8}},80}, {{{0,8}},16}, {{{84,8}},115}, + {{{82,7}},31}, {{{0,8}},112}, {{{0,8}},48}, {{{0,9}},192}, + {{{80,7}},10}, {{{0,8}},96}, {{{0,8}},32}, {{{0,9}},160}, + {{{0,8}},0}, {{{0,8}},128}, {{{0,8}},64}, {{{0,9}},224}, + {{{80,7}},6}, {{{0,8}},88}, {{{0,8}},24}, {{{0,9}},144}, + {{{83,7}},59}, {{{0,8}},120}, {{{0,8}},56}, {{{0,9}},208}, + {{{81,7}},17}, {{{0,8}},104}, {{{0,8}},40}, {{{0,9}},176}, + {{{0,8}},8}, {{{0,8}},136}, {{{0,8}},72}, {{{0,9}},240}, + {{{80,7}},4}, {{{0,8}},84}, {{{0,8}},20}, {{{85,8}},227}, + {{{83,7}},43}, {{{0,8}},116}, {{{0,8}},52}, {{{0,9}},200}, + {{{81,7}},13}, {{{0,8}},100}, {{{0,8}},36}, {{{0,9}},168}, + {{{0,8}},4}, {{{0,8}},132}, {{{0,8}},68}, {{{0,9}},232}, + {{{80,7}},8}, {{{0,8}},92}, {{{0,8}},28}, {{{0,9}},152}, + {{{84,7}},83}, {{{0,8}},124}, {{{0,8}},60}, {{{0,9}},216}, + {{{82,7}},23}, {{{0,8}},108}, {{{0,8}},44}, {{{0,9}},184}, + {{{0,8}},12}, {{{0,8}},140}, {{{0,8}},76}, {{{0,9}},248}, + {{{80,7}},3}, {{{0,8}},82}, {{{0,8}},18}, {{{85,8}},163}, + {{{83,7}},35}, {{{0,8}},114}, {{{0,8}},50}, {{{0,9}},196}, + {{{81,7}},11}, {{{0,8}},98}, {{{0,8}},34}, {{{0,9}},164}, + {{{0,8}},2}, {{{0,8}},130}, {{{0,8}},66}, {{{0,9}},228}, + {{{80,7}},7}, {{{0,8}},90}, {{{0,8}},26}, {{{0,9}},148}, + {{{84,7}},67}, {{{0,8}},122}, {{{0,8}},58}, {{{0,9}},212}, + {{{82,7}},19}, {{{0,8}},106}, {{{0,8}},42}, {{{0,9}},180}, + {{{0,8}},10}, {{{0,8}},138}, {{{0,8}},74}, {{{0,9}},244}, + {{{80,7}},5}, {{{0,8}},86}, {{{0,8}},22}, {{{192,8}},0}, + {{{83,7}},51}, {{{0,8}},118}, {{{0,8}},54}, {{{0,9}},204}, + {{{81,7}},15}, {{{0,8}},102}, {{{0,8}},38}, {{{0,9}},172}, + {{{0,8}},6}, {{{0,8}},134}, {{{0,8}},70}, {{{0,9}},236}, + {{{80,7}},9}, {{{0,8}},94}, {{{0,8}},30}, {{{0,9}},156}, + {{{84,7}},99}, {{{0,8}},126}, {{{0,8}},62}, {{{0,9}},220}, + {{{82,7}},27}, {{{0,8}},110}, {{{0,8}},46}, {{{0,9}},188}, + {{{0,8}},14}, {{{0,8}},142}, {{{0,8}},78}, {{{0,9}},252}, + {{{96,7}},256}, {{{0,8}},81}, {{{0,8}},17}, {{{85,8}},131}, + {{{82,7}},31}, {{{0,8}},113}, {{{0,8}},49}, {{{0,9}},194}, + {{{80,7}},10}, {{{0,8}},97}, {{{0,8}},33}, {{{0,9}},162}, + {{{0,8}},1}, {{{0,8}},129}, {{{0,8}},65}, {{{0,9}},226}, + {{{80,7}},6}, {{{0,8}},89}, {{{0,8}},25}, {{{0,9}},146}, + {{{83,7}},59}, {{{0,8}},121}, {{{0,8}},57}, {{{0,9}},210}, + {{{81,7}},17}, {{{0,8}},105}, {{{0,8}},41}, {{{0,9}},178}, + {{{0,8}},9}, {{{0,8}},137}, {{{0,8}},73}, {{{0,9}},242}, + {{{80,7}},4}, {{{0,8}},85}, {{{0,8}},21}, {{{80,8}},258}, + {{{83,7}},43}, {{{0,8}},117}, {{{0,8}},53}, {{{0,9}},202}, + {{{81,7}},13}, {{{0,8}},101}, {{{0,8}},37}, {{{0,9}},170}, + {{{0,8}},5}, {{{0,8}},133}, {{{0,8}},69}, {{{0,9}},234}, + {{{80,7}},8}, {{{0,8}},93}, {{{0,8}},29}, {{{0,9}},154}, + {{{84,7}},83}, {{{0,8}},125}, {{{0,8}},61}, {{{0,9}},218}, + {{{82,7}},23}, {{{0,8}},109}, {{{0,8}},45}, {{{0,9}},186}, + {{{0,8}},13}, {{{0,8}},141}, {{{0,8}},77}, {{{0,9}},250}, + {{{80,7}},3}, {{{0,8}},83}, {{{0,8}},19}, {{{85,8}},195}, + {{{83,7}},35}, {{{0,8}},115}, {{{0,8}},51}, {{{0,9}},198}, + {{{81,7}},11}, {{{0,8}},99}, {{{0,8}},35}, {{{0,9}},166}, + {{{0,8}},3}, {{{0,8}},131}, {{{0,8}},67}, {{{0,9}},230}, + {{{80,7}},7}, {{{0,8}},91}, {{{0,8}},27}, {{{0,9}},150}, + {{{84,7}},67}, {{{0,8}},123}, {{{0,8}},59}, {{{0,9}},214}, + {{{82,7}},19}, {{{0,8}},107}, {{{0,8}},43}, {{{0,9}},182}, + {{{0,8}},11}, {{{0,8}},139}, {{{0,8}},75}, {{{0,9}},246}, + {{{80,7}},5}, {{{0,8}},87}, {{{0,8}},23}, {{{192,8}},0}, + {{{83,7}},51}, {{{0,8}},119}, {{{0,8}},55}, {{{0,9}},206}, + {{{81,7}},15}, {{{0,8}},103}, {{{0,8}},39}, {{{0,9}},174}, + {{{0,8}},7}, {{{0,8}},135}, {{{0,8}},71}, {{{0,9}},238}, + {{{80,7}},9}, {{{0,8}},95}, {{{0,8}},31}, {{{0,9}},158}, + {{{84,7}},99}, {{{0,8}},127}, {{{0,8}},63}, {{{0,9}},222}, + {{{82,7}},27}, {{{0,8}},111}, {{{0,8}},47}, {{{0,9}},190}, + {{{0,8}},15}, {{{0,8}},143}, {{{0,8}},79}, {{{0,9}},254}, + {{{96,7}},256}, {{{0,8}},80}, {{{0,8}},16}, {{{84,8}},115}, + {{{82,7}},31}, {{{0,8}},112}, {{{0,8}},48}, {{{0,9}},193}, + {{{80,7}},10}, {{{0,8}},96}, {{{0,8}},32}, {{{0,9}},161}, + {{{0,8}},0}, {{{0,8}},128}, {{{0,8}},64}, {{{0,9}},225}, + {{{80,7}},6}, {{{0,8}},88}, {{{0,8}},24}, {{{0,9}},145}, + {{{83,7}},59}, {{{0,8}},120}, {{{0,8}},56}, {{{0,9}},209}, + {{{81,7}},17}, {{{0,8}},104}, {{{0,8}},40}, {{{0,9}},177}, + {{{0,8}},8}, {{{0,8}},136}, {{{0,8}},72}, {{{0,9}},241}, + {{{80,7}},4}, {{{0,8}},84}, {{{0,8}},20}, {{{85,8}},227}, + {{{83,7}},43}, {{{0,8}},116}, {{{0,8}},52}, {{{0,9}},201}, + {{{81,7}},13}, {{{0,8}},100}, {{{0,8}},36}, {{{0,9}},169}, + {{{0,8}},4}, {{{0,8}},132}, {{{0,8}},68}, {{{0,9}},233}, + {{{80,7}},8}, {{{0,8}},92}, {{{0,8}},28}, {{{0,9}},153}, + {{{84,7}},83}, {{{0,8}},124}, {{{0,8}},60}, {{{0,9}},217}, + {{{82,7}},23}, {{{0,8}},108}, {{{0,8}},44}, {{{0,9}},185}, + {{{0,8}},12}, {{{0,8}},140}, {{{0,8}},76}, {{{0,9}},249}, + {{{80,7}},3}, {{{0,8}},82}, {{{0,8}},18}, {{{85,8}},163}, + {{{83,7}},35}, {{{0,8}},114}, {{{0,8}},50}, {{{0,9}},197}, + {{{81,7}},11}, {{{0,8}},98}, {{{0,8}},34}, {{{0,9}},165}, + {{{0,8}},2}, {{{0,8}},130}, {{{0,8}},66}, {{{0,9}},229}, + {{{80,7}},7}, {{{0,8}},90}, {{{0,8}},26}, {{{0,9}},149}, + {{{84,7}},67}, {{{0,8}},122}, {{{0,8}},58}, {{{0,9}},213}, + {{{82,7}},19}, {{{0,8}},106}, {{{0,8}},42}, {{{0,9}},181}, + {{{0,8}},10}, {{{0,8}},138}, {{{0,8}},74}, {{{0,9}},245}, + {{{80,7}},5}, {{{0,8}},86}, {{{0,8}},22}, {{{192,8}},0}, + {{{83,7}},51}, {{{0,8}},118}, {{{0,8}},54}, {{{0,9}},205}, + {{{81,7}},15}, {{{0,8}},102}, {{{0,8}},38}, {{{0,9}},173}, + {{{0,8}},6}, {{{0,8}},134}, {{{0,8}},70}, {{{0,9}},237}, + {{{80,7}},9}, {{{0,8}},94}, {{{0,8}},30}, {{{0,9}},157}, + {{{84,7}},99}, {{{0,8}},126}, {{{0,8}},62}, {{{0,9}},221}, + {{{82,7}},27}, {{{0,8}},110}, {{{0,8}},46}, {{{0,9}},189}, + {{{0,8}},14}, {{{0,8}},142}, {{{0,8}},78}, {{{0,9}},253}, + {{{96,7}},256}, {{{0,8}},81}, {{{0,8}},17}, {{{85,8}},131}, + {{{82,7}},31}, {{{0,8}},113}, {{{0,8}},49}, {{{0,9}},195}, + {{{80,7}},10}, {{{0,8}},97}, {{{0,8}},33}, {{{0,9}},163}, + {{{0,8}},1}, {{{0,8}},129}, {{{0,8}},65}, {{{0,9}},227}, + {{{80,7}},6}, {{{0,8}},89}, {{{0,8}},25}, {{{0,9}},147}, + {{{83,7}},59}, {{{0,8}},121}, {{{0,8}},57}, {{{0,9}},211}, + {{{81,7}},17}, {{{0,8}},105}, {{{0,8}},41}, {{{0,9}},179}, + {{{0,8}},9}, {{{0,8}},137}, {{{0,8}},73}, {{{0,9}},243}, + {{{80,7}},4}, {{{0,8}},85}, {{{0,8}},21}, {{{80,8}},258}, + {{{83,7}},43}, {{{0,8}},117}, {{{0,8}},53}, {{{0,9}},203}, + {{{81,7}},13}, {{{0,8}},101}, {{{0,8}},37}, {{{0,9}},171}, + {{{0,8}},5}, {{{0,8}},133}, {{{0,8}},69}, {{{0,9}},235}, + {{{80,7}},8}, {{{0,8}},93}, {{{0,8}},29}, {{{0,9}},155}, + {{{84,7}},83}, {{{0,8}},125}, {{{0,8}},61}, {{{0,9}},219}, + {{{82,7}},23}, {{{0,8}},109}, {{{0,8}},45}, {{{0,9}},187}, + {{{0,8}},13}, {{{0,8}},141}, {{{0,8}},77}, {{{0,9}},251}, + {{{80,7}},3}, {{{0,8}},83}, {{{0,8}},19}, {{{85,8}},195}, + {{{83,7}},35}, {{{0,8}},115}, {{{0,8}},51}, {{{0,9}},199}, + {{{81,7}},11}, {{{0,8}},99}, {{{0,8}},35}, {{{0,9}},167}, + {{{0,8}},3}, {{{0,8}},131}, {{{0,8}},67}, {{{0,9}},231}, + {{{80,7}},7}, {{{0,8}},91}, {{{0,8}},27}, {{{0,9}},151}, + {{{84,7}},67}, {{{0,8}},123}, {{{0,8}},59}, {{{0,9}},215}, + {{{82,7}},19}, {{{0,8}},107}, {{{0,8}},43}, {{{0,9}},183}, + {{{0,8}},11}, {{{0,8}},139}, {{{0,8}},75}, {{{0,9}},247}, + {{{80,7}},5}, {{{0,8}},87}, {{{0,8}},23}, {{{192,8}},0}, + {{{83,7}},51}, {{{0,8}},119}, {{{0,8}},55}, {{{0,9}},207}, + {{{81,7}},15}, {{{0,8}},103}, {{{0,8}},39}, {{{0,9}},175}, + {{{0,8}},7}, {{{0,8}},135}, {{{0,8}},71}, {{{0,9}},239}, + {{{80,7}},9}, {{{0,8}},95}, {{{0,8}},31}, {{{0,9}},159}, + {{{84,7}},99}, {{{0,8}},127}, {{{0,8}},63}, {{{0,9}},223}, + {{{82,7}},27}, {{{0,8}},111}, {{{0,8}},47}, {{{0,9}},191}, + {{{0,8}},15}, {{{0,8}},143}, {{{0,8}},79}, {{{0,9}},255} + }; +local inflate_huft fixed_td[] = { + {{{80,5}},1}, {{{87,5}},257}, {{{83,5}},17}, {{{91,5}},4097}, + {{{81,5}},5}, {{{89,5}},1025}, {{{85,5}},65}, {{{93,5}},16385}, + {{{80,5}},3}, {{{88,5}},513}, {{{84,5}},33}, {{{92,5}},8193}, + {{{82,5}},9}, {{{90,5}},2049}, {{{86,5}},129}, {{{192,5}},24577}, + {{{80,5}},2}, {{{87,5}},385}, {{{83,5}},25}, {{{91,5}},6145}, + {{{81,5}},7}, {{{89,5}},1537}, {{{85,5}},97}, {{{93,5}},24577}, + {{{80,5}},4}, {{{88,5}},769}, {{{84,5}},49}, {{{92,5}},12289}, + {{{82,5}},13}, {{{90,5}},3073}, {{{86,5}},193}, {{{192,5}},24577} + }; --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/inflate.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,368 @@ +/* inflate.c -- zlib interface to inflate modules + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include +#include "infblock.h" + +struct inflate_blocks_state {int dummy;}; /* for buggy compilers */ + +typedef enum { + METHOD, /* waiting for method byte */ + FLAG, /* waiting for flag byte */ + DICT4, /* four dictionary check bytes to go */ + DICT3, /* three dictionary check bytes to go */ + DICT2, /* two dictionary check bytes to go */ + DICT1, /* one dictionary check byte to go */ + DICT0, /* waiting for inflateSetDictionary */ + BLOCKS, /* decompressing blocks */ + CHECK4, /* four check bytes to go */ + CHECK3, /* three check bytes to go */ + CHECK2, /* two check bytes to go */ + CHECK1, /* one check byte to go */ + DONE, /* finished check, done */ + BAD} /* got an error--stay here */ +inflate_mode; + +/* inflate private state */ +struct internal_state { + + /* mode */ + inflate_mode mode; /* current inflate mode */ + + /* mode dependent information */ + union { + uInt method; /* if FLAGS, method byte */ + struct { + uLong was; /* computed check value */ + uLong need; /* stream check value */ + } check; /* if CHECK, check values to compare */ + uInt marker; /* if BAD, inflateSync's marker bytes count */ + } sub; /* submode */ + + /* mode independent information */ + int nowrap; /* flag for no wrapper */ + uInt wbits; /* log2(window size) (8..15, defaults to 15) */ + inflate_blocks_statef + *blocks; /* current inflate_blocks state */ + +}; + + +int ZEXPORT inflateReset(z) +z_streamp z; +{ + if (z == Z_NULL || z->state == Z_NULL) + return Z_STREAM_ERROR; + z->total_in = z->total_out = 0; + z->msg = Z_NULL; + z->state->mode = z->state->nowrap ? BLOCKS : METHOD; + inflate_blocks_reset(z->state->blocks, z, Z_NULL); + Tracev((stderr, "inflate: reset\n")); + return Z_OK; +} + + +int ZEXPORT inflateEnd(z) +z_streamp z; +{ + if (z == Z_NULL || z->state == Z_NULL || z->zfree == Z_NULL) + return Z_STREAM_ERROR; + if (z->state->blocks != Z_NULL) + inflate_blocks_free(z->state->blocks, z); + ZFREE(z, z->state); + z->state = Z_NULL; + Tracev((stderr, "inflate: end\n")); + return Z_OK; +} + + +int ZEXPORT inflateInit2_(z, w, version, stream_size) +z_streamp z; +int w; +const char *version; +int stream_size; +{ + if (version == Z_NULL || version[0] != ZLIB_VERSION[0] || + stream_size != sizeof(z_stream)) + return Z_VERSION_ERROR; + + /* initialize state */ + if (z == Z_NULL) + return Z_STREAM_ERROR; + z->msg = Z_NULL; + if (z->zalloc == Z_NULL) + { + return Z_STREAM_ERROR; +/* z->zalloc = zcalloc; + z->opaque = (voidpf)0; +*/ + } + if (z->zfree == Z_NULL) return Z_STREAM_ERROR; /* z->zfree = zcfree; */ + if ((z->state = (struct internal_state FAR *) + ZALLOC(z,1,sizeof(struct internal_state))) == Z_NULL) + return Z_MEM_ERROR; + z->state->blocks = Z_NULL; + + /* handle undocumented nowrap option (no zlib header or check) */ + z->state->nowrap = 0; + if (w < 0) + { + w = - w; + z->state->nowrap = 1; + } + + /* set window size */ + if (w < 8 || w > 15) + { + inflateEnd(z); + return Z_STREAM_ERROR; + } + z->state->wbits = (uInt)w; + + /* create inflate_blocks state */ + if ((z->state->blocks = + inflate_blocks_new(z, z->state->nowrap ? Z_NULL : adler32, (uInt)1 << w)) + == Z_NULL) + { + inflateEnd(z); + return Z_MEM_ERROR; + } + Tracev((stderr, "inflate: allocated\n")); + + /* reset state */ + inflateReset(z); + return Z_OK; +} + + +int ZEXPORT inflateInit_(z, version, stream_size) +z_streamp z; +const char *version; +int stream_size; +{ + return inflateInit2_(z, DEF_WBITS, version, stream_size); +} + + +#define NEEDBYTE {if(z->avail_in==0)return r;r=f;} +#define NEXTBYTE (z->avail_in--,z->total_in++,*z->next_in++) + +int ZEXPORT inflate(z, f) +z_streamp z; +int f; +{ + int r; + uInt b; + + if (z == Z_NULL || z->state == Z_NULL || z->next_in == Z_NULL) + return Z_STREAM_ERROR; + f = f == Z_FINISH ? Z_BUF_ERROR : Z_OK; + r = Z_BUF_ERROR; + while (1) switch (z->state->mode) + { + case METHOD: + NEEDBYTE + if (((z->state->sub.method = NEXTBYTE) & 0xf) != Z_DEFLATED) + { + z->state->mode = BAD; + z->msg = (char*)"unknown compression method"; + z->state->sub.marker = 5; /* can't try inflateSync */ + break; + } + if ((z->state->sub.method >> 4) + 8 > z->state->wbits) + { + z->state->mode = BAD; + z->msg = (char*)"invalid window size"; + z->state->sub.marker = 5; /* can't try inflateSync */ + break; + } + z->state->mode = FLAG; + case FLAG: + NEEDBYTE + b = NEXTBYTE; + if (((z->state->sub.method << 8) + b) % 31) + { + z->state->mode = BAD; + z->msg = (char*)"incorrect header check"; + z->state->sub.marker = 5; /* can't try inflateSync */ + break; + } + Tracev((stderr, "inflate: zlib header ok\n")); + if (!(b & PRESET_DICT)) + { + z->state->mode = BLOCKS; + break; + } + z->state->mode = DICT4; + case DICT4: + NEEDBYTE + z->state->sub.check.need = (uLong)NEXTBYTE << 24; + z->state->mode = DICT3; + case DICT3: + NEEDBYTE + z->state->sub.check.need += (uLong)NEXTBYTE << 16; + z->state->mode = DICT2; + case DICT2: + NEEDBYTE + z->state->sub.check.need += (uLong)NEXTBYTE << 8; + z->state->mode = DICT1; + case DICT1: + NEEDBYTE + z->state->sub.check.need += (uLong)NEXTBYTE; + z->adler = z->state->sub.check.need; + z->state->mode = DICT0; + return Z_NEED_DICT; + case DICT0: + z->state->mode = BAD; + z->msg = (char*)"need dictionary"; + z->state->sub.marker = 0; /* can try inflateSync */ + return Z_STREAM_ERROR; + case BLOCKS: + r = inflate_blocks(z->state->blocks, z, r); + if (r == Z_DATA_ERROR) + { + z->state->mode = BAD; + z->state->sub.marker = 0; /* can try inflateSync */ + break; + } + if (r == Z_OK) + r = f; + if (r != Z_STREAM_END) + return r; + r = f; + inflate_blocks_reset(z->state->blocks, z, &z->state->sub.check.was); + if (z->state->nowrap) + { + z->state->mode = DONE; + break; + } + z->state->mode = CHECK4; + case CHECK4: + NEEDBYTE + z->state->sub.check.need = (uLong)NEXTBYTE << 24; + z->state->mode = CHECK3; + case CHECK3: + NEEDBYTE + z->state->sub.check.need += (uLong)NEXTBYTE << 16; + z->state->mode = CHECK2; + case CHECK2: + NEEDBYTE + z->state->sub.check.need += (uLong)NEXTBYTE << 8; + z->state->mode = CHECK1; + case CHECK1: + NEEDBYTE + z->state->sub.check.need += (uLong)NEXTBYTE; + + if (z->state->sub.check.was != z->state->sub.check.need) + { + z->state->mode = BAD; + z->msg = (char*)"incorrect data check"; + z->state->sub.marker = 5; /* can't try inflateSync */ + break; + } + Tracev((stderr, "inflate: zlib check ok\n")); + z->state->mode = DONE; + case DONE: + return Z_STREAM_END; + case BAD: + return Z_DATA_ERROR; + default: + return Z_STREAM_ERROR; + } +#ifdef NEED_DUMMY_RETURN + return Z_STREAM_ERROR; /* Some dumb compilers complain without this */ +#endif +} + + +int ZEXPORT inflateSetDictionary(z, dictionary, dictLength) +z_streamp z; +const Bytef *dictionary; +uInt dictLength; +{ + uInt length = dictLength; + + if (z == Z_NULL || z->state == Z_NULL || z->state->mode != DICT0) + return Z_STREAM_ERROR; + + if (adler32(1L, dictionary, dictLength) != z->adler) return Z_DATA_ERROR; + z->adler = 1L; + + if (length >= ((uInt)1<state->wbits)) + { + length = (1<state->wbits)-1; + dictionary += dictLength - length; + } + inflate_set_dictionary(z->state->blocks, dictionary, length); + z->state->mode = BLOCKS; + return Z_OK; +} + + +int ZEXPORT inflateSync(z) +z_streamp z; +{ + uInt n; /* number of bytes to look at */ + Bytef *p; /* pointer to bytes */ + uInt m; /* number of marker bytes found in a row */ + uLong r, w; /* temporaries to save total_in and total_out */ + + /* set up */ + if (z == Z_NULL || z->state == Z_NULL) + return Z_STREAM_ERROR; + if (z->state->mode != BAD) + { + z->state->mode = BAD; + z->state->sub.marker = 0; + } + if ((n = z->avail_in) == 0) + return Z_BUF_ERROR; + p = z->next_in; + m = z->state->sub.marker; + + /* search */ + while (n && m < 4) + { + static const Byte mark[4] = {0, 0, 0xff, 0xff}; + if (*p == mark[m]) + m++; + else if (*p) + m = 0; + else + m = 4 - m; + p++, n--; + } + + /* restore */ + z->total_in += p - z->next_in; + z->next_in = p; + z->avail_in = n; + z->state->sub.marker = m; + + /* return no joy or set up to restart on a new block */ + if (m != 4) + return Z_DATA_ERROR; + r = z->total_in; w = z->total_out; + inflateReset(z); + z->total_in = r; z->total_out = w; + z->state->mode = BLOCKS; + return Z_OK; +} + + +/* Returns true if inflate is currently at the end of a block generated + * by Z_SYNC_FLUSH or Z_FULL_FLUSH. This function is used by one PPP + * implementation to provide an additional safety check. PPP uses Z_SYNC_FLUSH + * but removes the length bytes of the resulting empty stored block. When + * decompressing, PPP checks that at the end of input packet, inflate is + * waiting for these length bytes. + */ +int ZEXPORT inflateSyncPoint(z) +z_streamp z; +{ + if (z == Z_NULL || z->state == Z_NULL || z->state->blocks == Z_NULL) + return Z_STREAM_ERROR; + return inflate_blocks_sync_point(z->state->blocks); +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/inftrees.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,454 @@ +/* inftrees.c -- generate Huffman trees for efficient decoding + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include +#include "inftrees.h" + +#if !defined(BUILDFIXED) && !defined(STDC) +# define BUILDFIXED /* non ANSI compilers may not accept inffixed.h */ +#endif + +local const char inflate_copyright[] = + " inflate 1.1.4 Copyright 1995-2002 Mark Adler "; +/* + If you use the zlib library in a product, an acknowledgment is welcome + in the documentation of your product. If for some reason you cannot + include such an acknowledgment, I would appreciate that you keep this + copyright string in the executable of your product. + */ +struct internal_state {int dummy;}; /* for buggy compilers */ + +/* simplify the use of the inflate_huft type with some defines */ +#define exop word.what.Exop +#define bits word.what.Bits + + +local int huft_build OF(( + uIntf *, /* code lengths in bits */ + uInt, /* number of codes */ + uInt, /* number of "simple" codes */ + const uIntf *, /* list of base values for non-simple codes */ + const uIntf *, /* list of extra bits for non-simple codes */ + inflate_huft * FAR*,/* result: starting table */ + uIntf *, /* maximum lookup bits (returns actual) */ + inflate_huft *, /* space for trees */ + uInt *, /* hufts used in space */ + uIntf * )); /* space for values */ + +/* Tables for deflate from PKZIP's appnote.txt. */ +local const uInt cplens[31] = { /* Copy lengths for literal codes 257..285 */ + 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, + 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0}; + /* see note #13 above about 258 */ +local const uInt cplext[31] = { /* Extra bits for literal codes 257..285 */ + 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, + 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, 112, 112}; /* 112==invalid */ +local const uInt cpdist[30] = { /* Copy offsets for distance codes 0..29 */ + 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, + 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, + 8193, 12289, 16385, 24577}; +local const uInt cpdext[30] = { /* Extra bits for distance codes */ + 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, + 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, + 12, 12, 13, 13}; + +/* + Huffman code decoding is performed using a multi-level table lookup. + The fastest way to decode is to simply build a lookup table whose + size is determined by the longest code. However, the time it takes + to build this table can also be a factor if the data being decoded + is not very long. The most common codes are necessarily the + shortest codes, so those codes dominate the decoding time, and hence + the speed. The idea is you can have a shorter table that decodes the + shorter, more probable codes, and then point to subsidiary tables for + the longer codes. The time it costs to decode the longer codes is + then traded against the time it takes to make longer tables. + + This results of this trade are in the variables lbits and dbits + below. lbits is the number of bits the first level table for literal/ + length codes can decode in one step, and dbits is the same thing for + the distance codes. Subsequent tables are also less than or equal to + those sizes. These values may be adjusted either when all of the + codes are shorter than that, in which case the longest code length in + bits is used, or when the shortest code is *longer* than the requested + table size, in which case the length of the shortest code in bits is + used. + + There are two different values for the two tables, since they code a + different number of possibilities each. The literal/length table + codes 286 possible values, or in a flat code, a little over eight + bits. The distance table codes 30 possible values, or a little less + than five bits, flat. The optimum values for speed end up being + about one bit more than those, so lbits is 8+1 and dbits is 5+1. + The optimum values may differ though from machine to machine, and + possibly even between compilers. Your mileage may vary. + */ + + +/* If BMAX needs to be larger than 16, then h and x[] should be uLong. */ +#define BMAX 15 /* maximum bit length of any code */ + +local int huft_build(b, n, s, d, e, t, m, hp, hn, v) +uIntf *b; /* code lengths in bits (all assumed <= BMAX) */ +uInt n; /* number of codes (assumed <= 288) */ +uInt s; /* number of simple-valued codes (0..s-1) */ +const uIntf *d; /* list of base values for non-simple codes */ +const uIntf *e; /* list of extra bits for non-simple codes */ +inflate_huft * FAR *t; /* result: starting table */ +uIntf *m; /* maximum lookup bits, returns actual */ +inflate_huft *hp; /* space for trees */ +uInt *hn; /* hufts used in space */ +uIntf *v; /* working area: values in order of bit length */ +/* Given a list of code lengths and a maximum table size, make a set of + tables to decode that set of codes. Return Z_OK on success, Z_BUF_ERROR + if the given code set is incomplete (the tables are still built in this + case), or Z_DATA_ERROR if the input is invalid. */ +{ + + uInt a; /* counter for codes of length k */ + uInt c[BMAX+1]; /* bit length count table */ + uInt f; /* i repeats in table every f entries */ + int g; /* maximum code length */ + int h; /* table level */ + register uInt i; /* counter, current code */ + register uInt j; /* counter */ + register int k; /* number of bits in current code */ + int l; /* bits per table (returned in m) */ + uInt mask; /* (1 << w) - 1, to avoid cc -O bug on HP */ + register uIntf *p; /* pointer into c[], b[], or v[] */ + inflate_huft *q; /* points to current table */ + struct inflate_huft_s r; /* table entry for structure assignment */ + inflate_huft *u[BMAX]; /* table stack */ + register int w; /* bits before this table == (l * h) */ + uInt x[BMAX+1]; /* bit offsets, then code stack */ + uIntf *xp; /* pointer into x */ + int y; /* number of dummy codes added */ + uInt z; /* number of entries in current table */ + + + /* Generate counts for each bit length */ + p = c; +#define C0 *p++ = 0; +#define C2 C0 C0 C0 C0 +#define C4 C2 C2 C2 C2 + C4 /* clear c[]--assume BMAX+1 is 16 */ + p = b; i = n; + do { + c[*p++]++; /* assume all entries <= BMAX */ + } while (--i); + if (c[0] == n) /* null input--all zero length codes */ + { + *t = (inflate_huft *)Z_NULL; + *m = 0; + return Z_OK; + } + + + /* Find minimum and maximum length, bound *m by those */ + l = *m; + for (j = 1; j <= BMAX; j++) + if (c[j]) + break; + k = j; /* minimum code length */ + if ((uInt)l < j) + l = j; + for (i = BMAX; i; i--) + if (c[i]) + break; + g = i; /* maximum code length */ + if ((uInt)l > i) + l = i; + *m = l; + + + /* Adjust last length count to fill out codes, if needed */ + for (y = 1 << j; j < i; j++, y <<= 1) + if ((y -= c[j]) < 0) + return Z_DATA_ERROR; + if ((y -= c[i]) < 0) + return Z_DATA_ERROR; + c[i] += y; + + + /* Generate starting offsets into the value table for each length */ + x[1] = j = 0; + p = c + 1; xp = x + 2; + while (--i) { /* note that i == g from above */ + *xp++ = (j += *p++); + } + + + /* Make a table of values in order of bit lengths */ + p = b; i = 0; + do { + if ((j = *p++) != 0) + v[x[j]++] = i; + } while (++i < n); + n = x[g]; /* set n to length of v */ + + + /* Generate the Huffman codes and for each, make the table entries */ + x[0] = i = 0; /* first Huffman code is zero */ + p = v; /* grab values in bit order */ + h = -1; /* no tables yet--level -1 */ + w = -l; /* bits decoded == (l * h) */ + u[0] = (inflate_huft *)Z_NULL; /* just to keep compilers happy */ + q = (inflate_huft *)Z_NULL; /* ditto */ + z = 0; /* ditto */ + + /* go through the bit lengths (k already is bits in shortest code) */ + for (; k <= g; k++) + { + a = c[k]; + while (a--) + { + /* here i is the Huffman code of length k bits for value *p */ + /* make tables up to required level */ + while (k > w + l) + { + h++; + w += l; /* previous table always l bits */ + + /* compute minimum size table less than or equal to l bits */ + z = g - w; + z = z > (uInt)l ? l : z; /* table size upper limit */ + if ((f = 1 << (j = k - w)) > a + 1) /* try a k-w bit table */ + { /* too few codes for k-w bit table */ + f -= a + 1; /* deduct codes from patterns left */ + xp = c + k; + if (j < z) + while (++j < z) /* try smaller tables up to z bits */ + { + if ((f <<= 1) <= *++xp) + break; /* enough codes to use up j bits */ + f -= *xp; /* else deduct codes from patterns */ + } + } + z = 1 << j; /* table entries for j-bit table */ + + /* allocate new table */ + if (*hn + z > MANY) /* (note: doesn't matter for fixed) */ + return Z_DATA_ERROR; /* overflow of MANY */ + u[h] = q = hp + *hn; + *hn += z; + + /* connect to last table, if there is one */ + if (h) + { + x[h] = i; /* save pattern for backing up */ + r.bits = (Byte)l; /* bits to dump before this table */ + r.exop = (Byte)j; /* bits in this table */ + j = i >> (w - l); + r.base = (uInt)(q - u[h-1] - j); /* offset to this table */ + u[h-1][j] = r; /* connect to last table */ + } + else + *t = q; /* first table is returned result */ + } + + /* set up table entry in r */ + r.bits = (Byte)(k - w); + if (p >= v + n) + r.exop = 128 + 64; /* out of values--invalid code */ + else if (*p < s) + { + r.exop = (Byte)(*p < 256 ? 0 : 32 + 64); /* 256 is end-of-block */ + r.base = *p++; /* simple code is just the value */ + } + else + { + r.exop = (Byte)(e[*p - s] + 16 + 64);/* non-simple--look up in lists */ + r.base = d[*p++ - s]; + } + + /* fill code-like entries with r */ + f = 1 << (k - w); + for (j = i >> w; j < z; j += f) + q[j] = r; + + /* backwards increment the k-bit code i */ + for (j = 1 << (k - 1); i & j; j >>= 1) + i ^= j; + i ^= j; + + /* backup over finished tables */ + mask = (1 << w) - 1; /* needed on HP, cc -O bug */ + while ((i & mask) != x[h]) + { + h--; /* don't need to update q */ + w -= l; + mask = (1 << w) - 1; + } + } + } + + + /* Return Z_BUF_ERROR if we were given an incomplete table */ + return y != 0 && g != 1 ? Z_BUF_ERROR : Z_OK; +} + + +int inflate_trees_bits(c, bb, tb, hp, z) +uIntf *c; /* 19 code lengths */ +uIntf *bb; /* bits tree desired/actual depth */ +inflate_huft * FAR *tb; /* bits tree result */ +inflate_huft *hp; /* space for trees */ +z_streamp z; /* for messages */ +{ + int r; + uInt hn = 0; /* hufts used in space */ + uIntf *v; /* work area for huft_build */ + + if ((v = (uIntf*)ZALLOC(z, 19, sizeof(uInt))) == Z_NULL) + return Z_MEM_ERROR; + r = huft_build(c, 19, 19, (uIntf*)Z_NULL, (uIntf*)Z_NULL, + tb, bb, hp, &hn, v); + if (r == Z_DATA_ERROR) + z->msg = (char*)"oversubscribed dynamic bit lengths tree"; + else if (r == Z_BUF_ERROR || *bb == 0) + { + z->msg = (char*)"incomplete dynamic bit lengths tree"; + r = Z_DATA_ERROR; + } + ZFREE(z, v); + return r; +} + + +int inflate_trees_dynamic(nl, nd, c, bl, bd, tl, td, hp, z) +uInt nl; /* number of literal/length codes */ +uInt nd; /* number of distance codes */ +uIntf *c; /* that many (total) code lengths */ +uIntf *bl; /* literal desired/actual bit depth */ +uIntf *bd; /* distance desired/actual bit depth */ +inflate_huft * FAR *tl; /* literal/length tree result */ +inflate_huft * FAR *td; /* distance tree result */ +inflate_huft *hp; /* space for trees */ +z_streamp z; /* for messages */ +{ + int r; + uInt hn = 0; /* hufts used in space */ + uIntf *v; /* work area for huft_build */ + + /* allocate work area */ + if ((v = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL) + return Z_MEM_ERROR; + + /* build literal/length tree */ + r = huft_build(c, nl, 257, cplens, cplext, tl, bl, hp, &hn, v); + if (r != Z_OK || *bl == 0) + { + if (r == Z_DATA_ERROR) + z->msg = (char*)"oversubscribed literal/length tree"; + else if (r != Z_MEM_ERROR) + { + z->msg = (char*)"incomplete literal/length tree"; + r = Z_DATA_ERROR; + } + ZFREE(z, v); + return r; + } + + /* build distance tree */ + r = huft_build(c + nl, nd, 0, cpdist, cpdext, td, bd, hp, &hn, v); + if (r != Z_OK || (*bd == 0 && nl > 257)) + { + if (r == Z_DATA_ERROR) + z->msg = (char*)"oversubscribed distance tree"; + else if (r == Z_BUF_ERROR) { +#ifdef PKZIP_BUG_WORKAROUND + r = Z_OK; + } +#else + z->msg = (char*)"incomplete distance tree"; + r = Z_DATA_ERROR; + } + else if (r != Z_MEM_ERROR) + { + z->msg = (char*)"empty distance tree with lengths"; + r = Z_DATA_ERROR; + } + ZFREE(z, v); + return r; +#endif + } + + /* done */ + ZFREE(z, v); + return Z_OK; +} + + +/* build fixed tables only once--keep them here */ +#ifdef BUILDFIXED +local int fixed_built = 0; +#define FIXEDH 544 /* number of hufts used by fixed tables */ +local inflate_huft fixed_mem[FIXEDH]; +local uInt fixed_bl; +local uInt fixed_bd; +local inflate_huft *fixed_tl; +local inflate_huft *fixed_td; +#else +#include "inffixed.h" +#endif + + +int inflate_trees_fixed(bl, bd, tl, td, z) +uIntf *bl; /* literal desired/actual bit depth */ +uIntf *bd; /* distance desired/actual bit depth */ +inflate_huft * FAR *tl; /* literal/length tree result */ +inflate_huft * FAR *td; /* distance tree result */ +z_streamp z; /* for memory allocation */ +{ +#ifdef BUILDFIXED + /* build fixed tables if not already */ + if (!fixed_built) + { + int k; /* temporary variable */ + uInt f = 0; /* number of hufts used in fixed_mem */ + uIntf *c; /* length list for huft_build */ + uIntf *v; /* work area for huft_build */ + + /* allocate memory */ + if ((c = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL) + return Z_MEM_ERROR; + if ((v = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL) + { + ZFREE(z, c); + return Z_MEM_ERROR; + } + + /* literal table */ + for (k = 0; k < 144; k++) + c[k] = 8; + for (; k < 256; k++) + c[k] = 9; + for (; k < 280; k++) + c[k] = 7; + for (; k < 288; k++) + c[k] = 8; + fixed_bl = 9; + huft_build(c, 288, 257, cplens, cplext, &fixed_tl, &fixed_bl, + fixed_mem, &f, v); + + /* distance table */ + for (k = 0; k < 30; k++) + c[k] = 5; + fixed_bd = 5; + huft_build(c, 30, 0, cpdist, cpdext, &fixed_td, &fixed_bd, + fixed_mem, &f, v); + + /* done */ + ZFREE(z, v); + ZFREE(z, c); + fixed_built = 1; + } +#endif + *bl = fixed_bl; + *bd = fixed_bd; + *tl = fixed_tl; + *td = fixed_td; + return Z_OK; +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/inftrees.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,63 @@ +/* inftrees.h -- header to use inftrees.c + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +/* Huffman code lookup table entry--this entry is four bytes for machines + that have 16-bit pointers (e.g. PC's in the small or medium model). */ + +#ifndef _INFTREES_H +#define _INFTREES_H + +typedef struct inflate_huft_s FAR inflate_huft; + +struct inflate_huft_s { + union { + struct { + Byte Exop; /* number of extra bits or operation */ + Byte Bits; /* number of bits in this code or subcode */ + } what; + uInt pad; /* pad structure to a power of 2 (4 bytes for */ + } word; /* 16-bit, 8 bytes for 32-bit int's) */ + uInt base; /* literal, length base, distance base, + or table offset */ +}; + +/* Maximum size of dynamic tree. The maximum found in a long but non- + exhaustive search was 1004 huft structures (850 for length/literals + and 154 for distances, the latter actually the result of an + exhaustive search). The actual maximum is not known, but the + value below is more than safe. */ +#define MANY 1440 + +extern int inflate_trees_bits OF(( + uIntf *, /* 19 code lengths */ + uIntf *, /* bits tree desired/actual depth */ + inflate_huft * FAR *, /* bits tree result */ + inflate_huft *, /* space for trees */ + z_streamp)); /* for messages */ + +extern int inflate_trees_dynamic OF(( + uInt, /* number of literal/length codes */ + uInt, /* number of distance codes */ + uIntf *, /* that many (total) code lengths */ + uIntf *, /* literal desired/actual bit depth */ + uIntf *, /* distance desired/actual bit depth */ + inflate_huft * FAR *, /* literal/length tree result */ + inflate_huft * FAR *, /* distance tree result */ + inflate_huft *, /* space for trees */ + z_streamp)); /* for messages */ + +extern int inflate_trees_fixed OF(( + uIntf *, /* literal desired/actual bit depth */ + uIntf *, /* distance desired/actual bit depth */ + inflate_huft * FAR *, /* literal/length tree result */ + inflate_huft * FAR *, /* distance tree result */ + z_streamp)); /* for memory allocation */ + +#endif /* _INFTREES_H */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/infutil.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,87 @@ +/* inflate_util.c -- data and routines common to blocks and codes + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +#include +#include "infblock.h" +#include "inftrees.h" +#include "infcodes.h" +#include "infutil.h" + +struct inflate_codes_state {int dummy;}; /* for buggy compilers */ + +/* And'ing with mask[n] masks the lower n bits */ +uInt inflate_mask[17] = { + 0x0000, + 0x0001, 0x0003, 0x0007, 0x000f, 0x001f, 0x003f, 0x007f, 0x00ff, + 0x01ff, 0x03ff, 0x07ff, 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff +}; + + +/* copy as much as possible from the sliding window to the output area */ +int inflate_flush(s, z, r) +inflate_blocks_statef *s; +z_streamp z; +int r; +{ + uInt n; + Bytef *p; + Bytef *q; + + /* local copies of source and destination pointers */ + p = z->next_out; + q = s->read; + + /* compute number of bytes to copy as far as end of window */ + n = (uInt)((q <= s->write ? s->write : s->end) - q); + if (n > z->avail_out) n = z->avail_out; + if (n && r == Z_BUF_ERROR) r = Z_OK; + + /* update counters */ + z->avail_out -= n; + z->total_out += n; + + /* update check information */ + if (s->checkfn != Z_NULL) + z->adler = s->check = (*s->checkfn)(s->check, q, n); + + /* copy as far as end of window */ + zmemcpy(p, q, n); + p += n; + q += n; + + /* see if more to copy at beginning of window */ + if (q == s->end) + { + /* wrap pointers */ + q = s->window; + if (s->write == s->end) + s->write = s->window; + + /* compute bytes to copy */ + n = (uInt)(s->write - q); + if (n > z->avail_out) n = z->avail_out; + if (n && r == Z_BUF_ERROR) r = Z_OK; + + /* update counters */ + z->avail_out -= n; + z->total_out += n; + + /* update check information */ + if (s->checkfn != Z_NULL) + z->adler = s->check = (*s->checkfn)(s->check, q, n); + + /* copy */ + zmemcpy(p, q, n); + p += n; + q += n; + } + + /* update pointers */ + z->next_out = p; + s->read = q; + + /* done */ + return r; +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/infutil.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,98 @@ +/* infutil.h -- types and macros common to blocks and codes + * Copyright (C) 1995-2002 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +#ifndef _INFUTIL_H +#define _INFUTIL_H + +typedef enum { + TYPE, /* get type bits (3, including end bit) */ + LENS, /* get lengths for stored */ + STORED, /* processing stored block */ + TABLE, /* get table lengths */ + BTREE, /* get bit lengths tree for a dynamic block */ + DTREE, /* get length, distance trees for a dynamic block */ + CODES, /* processing fixed or dynamic block */ + DRY, /* output remaining window bytes */ + DONE, /* finished last block, done */ + BAD} /* got a data error--stuck here */ +inflate_block_mode; + +/* inflate blocks semi-private state */ +struct inflate_blocks_state { + + /* mode */ + inflate_block_mode mode; /* current inflate_block mode */ + + /* mode dependent information */ + union { + uInt left; /* if STORED, bytes left to copy */ + struct { + uInt table; /* table lengths (14 bits) */ + uInt index; /* index into blens (or border) */ + uIntf *blens; /* bit lengths of codes */ + uInt bb; /* bit length tree depth */ + inflate_huft *tb; /* bit length decoding tree */ + } trees; /* if DTREE, decoding info for trees */ + struct { + inflate_codes_statef + *codes; + } decode; /* if CODES, current state */ + } sub; /* submode */ + uInt last; /* true if this block is the last block */ + + /* mode independent information */ + uInt bitk; /* bits in bit buffer */ + uLong bitb; /* bit buffer */ + inflate_huft *hufts; /* single malloc for tree space */ + Bytef *window; /* sliding window */ + Bytef *end; /* one byte after sliding window */ + Bytef *read; /* window read pointer */ + Bytef *write; /* window write pointer */ + check_func checkfn; /* check function */ + uLong check; /* check on output */ + +}; + + +/* defines for inflate input/output */ +/* update pointers and return */ +#define UPDBITS {s->bitb=b;s->bitk=k;} +#define UPDIN {z->avail_in=n;z->total_in+=p-z->next_in;z->next_in=p;} +#define UPDOUT {s->write=q;} +#define UPDATE {UPDBITS UPDIN UPDOUT} +#define LEAVE {UPDATE return inflate_flush(s,z,r);} +/* get bytes and bits */ +#define LOADIN {p=z->next_in;n=z->avail_in;b=s->bitb;k=s->bitk;} +#define NEEDBYTE {if(n)r=Z_OK;else LEAVE} +#define NEXTBYTE (n--,*p++) +#define NEEDBITS(j) {while(k<(j)){NEEDBYTE;b|=((uLong)NEXTBYTE)<>=(j);k-=(j);} +/* output bytes */ +#define WAVAIL (uInt)(qread?s->read-q-1:s->end-q) +#define LOADOUT {q=s->write;m=(uInt)WAVAIL;} +#define WRAP {if(q==s->end&&s->read!=s->window){q=s->window;m=(uInt)WAVAIL;}} +#define FLUSH {UPDOUT r=inflate_flush(s,z,r); LOADOUT} +#define NEEDOUT {if(m==0){WRAP if(m==0){FLUSH WRAP if(m==0) LEAVE}}r=Z_OK;} +#define OUTBYTE(a) {*q++=(Byte)(a);m--;} +/* load local pointers */ +#define LOAD {LOADIN LOADOUT} + +/* masks for lower bits (size given to avoid silly warnings with Visual C++) */ +extern uInt inflate_mask[17]; + +/* copy as much as possible from the sliding window to the output area */ +extern int inflate_flush OF(( + inflate_blocks_statef *, + z_streamp , + int)); + +struct internal_state {int dummy;}; /* for buggy compilers */ + +#endif /* _INFUTIL_H */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/initaddr.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,50 @@ +/* + * initialize address structure + * Copyright (C) 2000 Henry Spencer. + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + * License for more details. + * + * RCSID $Id: initaddr.c,v 1.6 2004/07/10 07:43:47 mcr Exp $ + */ +#include "openswan.h" + +/* + - initaddr - initialize ip_address from bytes + */ +err_t /* NULL for success, else string literal */ +initaddr(src, srclen, af, dst) +const unsigned char *src; +size_t srclen; +int af; /* address family */ +ip_address *dst; +{ + switch (af) { + case AF_INET: + if (srclen != 4) + return "IPv4 address must be exactly 4 bytes"; + dst->u.v4.sin_family = af; + dst->u.v4.sin_port = 0; /* unused */ + memcpy((char *)&dst->u.v4.sin_addr.s_addr, src, srclen); + break; + case AF_INET6: + if (srclen != 16) + return "IPv6 address must be exactly 16 bytes"; + dst->u.v6.sin6_family = af; + dst->u.v6.sin6_flowinfo = 0; /* unused */ + dst->u.v6.sin6_port = 0; /* unused */ + memcpy((char *)&dst->u.v6.sin6_addr, src, srclen); + break; + default: + return "unknown address family in initaddr"; + break; + } + return NULL; +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ipcomp.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,701 @@ +/* + * IPCOMP zlib interface code. + * Copyright (C) 2000 Svenning Soerensen + * Copyright (C) 2000, 2001 Richard Guy Briggs + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +char ipcomp_c_version[] = "RCSID $Id: ipcomp.c,v 1.41.2.5 2006/10/06 21:39:26 paul Exp $"; + +/* SSS */ + +#ifndef AUTOCONF_INCLUDED +#include +#endif +#include + +#define __NO_VERSION__ +#include +#include /* printk() */ + +#include "openswan/ipsec_param.h" + +#ifdef MALLOC_SLAB +# include /* kmalloc() */ +#else /* MALLOC_SLAB */ +# include /* kmalloc() */ +#endif /* MALLOC_SLAB */ +#include /* error codes */ +#include +#include +#include +#include + +#include /* struct device, and other headers */ +#include /* eth_type_trans */ +#include /* struct iphdr */ +#include +#include +#include + +#include + +#include + +#include "openswan/radij.h" +#include "openswan/ipsec_encap.h" +#include "openswan/ipsec_sa.h" + +#include "openswan/ipsec_xform.h" +#include "openswan/ipsec_tunnel.h" +#include "openswan/ipsec_rcv.h" /* sysctl_ipsec_inbound_policy_check */ +#include "openswan/ipsec_proto.h" +#include "openswan/ipcomp.h" +#include "zlib/zlib.h" +#include "zlib/zutil.h" + +#include /* SADB_X_CALG_DEFLATE */ + +#ifdef CONFIG_KLIPS_DEBUG +int sysctl_ipsec_debug_ipcomp = 0; +#endif /* CONFIG_KLIPS_DEBUG */ + +static +struct sk_buff *skb_copy_ipcomp(struct sk_buff *skb, int data_growth, int gfp_mask); + +static +voidpf my_zcalloc(voidpf opaque, uInt items, uInt size) +{ + return (voidpf) kmalloc(items*size, GFP_ATOMIC); +} + +static +void my_zfree(voidpf opaque, voidpf address) +{ + kfree(address); +} + +/* + * We use this function because sometimes we want to pass a negative offset + * into skb_put(), this does not work on 64bit platforms because long to + * unsigned int casting. + */ +static inline unsigned char * +safe_skb_put(struct sk_buff *skb, int extend) +{ + unsigned char *ptr; + + if (extend>0) { + // increase the size of the packet + ptr = skb_put(skb, extend); + } else { + // shrink the size of the packet + ptr = skb->tail; + skb_trim (skb, skb->len + extend); + } + + return ptr; +} + +struct sk_buff *skb_compress(struct sk_buff *skb, struct ipsec_sa *ips, unsigned int *flags) +{ + struct iphdr *iph; + unsigned int iphlen, pyldsz, cpyldsz; + unsigned char *buffer; + z_stream zs; + int zresult; + + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_debug:skb_compress: .\n"); + + if(skb == NULL) { + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_debug:skb_compress: " + "passed in NULL skb, returning ERROR.\n"); + if(flags != NULL) { + *flags |= IPCOMP_PARMERROR; + } + return skb; + } + + if(ips == NULL) { + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_debug:skb_compress: " + "passed in NULL ipsec_sa needed for cpi, returning ERROR.\n"); + if(flags) { + *flags |= IPCOMP_PARMERROR; + } + return skb; + } + + if (flags == NULL) { + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_debug:skb_compress: " + "passed in NULL flags, returning ERROR.\n"); + ipsec_kfree_skb(skb); + return NULL; + } + +#ifdef NET_21 + iph = skb->nh.iph; +#else /* NET_21 */ + iph = skb->ip_hdr; +#endif /* NET_21 */ + + switch (iph->protocol) { + case IPPROTO_COMP: + case IPPROTO_AH: + case IPPROTO_ESP: + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_debug:skb_compress: " + "skipping compression of packet with ip protocol %d.\n", + iph->protocol); + *flags |= IPCOMP_UNCOMPRESSABLE; + return skb; + } + + /* Don't compress packets already fragmented */ + if (iph->frag_off & __constant_htons(IP_MF | IP_OFFSET)) { + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_debug:skb_compress: " + "skipping compression of fragmented packet.\n"); + *flags |= IPCOMP_UNCOMPRESSABLE; + return skb; + } + + iphlen = iph->ihl << 2; + pyldsz = ntohs(iph->tot_len) - iphlen; + + /* Don't compress less than 90 bytes (rfc 2394) */ + if (pyldsz < 90) { + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_debug:skb_compress: " + "skipping compression of tiny packet, len=%d.\n", + pyldsz); + *flags |= IPCOMP_UNCOMPRESSABLE; + return skb; + } + + /* Adaptive decision */ + if (ips->ips_comp_adapt_skip) { + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_debug:skb_compress: " + "skipping compression: ips_comp_adapt_skip=%d.\n", + ips->ips_comp_adapt_skip); + ips->ips_comp_adapt_skip--; + *flags |= IPCOMP_UNCOMPRESSABLE; + return skb; + } + + zs.zalloc = my_zcalloc; + zs.zfree = my_zfree; + zs.opaque = 0; + + /* We want to use deflateInit2 because we don't want the adler + header. */ + zresult = deflateInit2(&zs, Z_DEFAULT_COMPRESSION, Z_DEFLATED, -11, + DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY); + if (zresult != Z_OK) { + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_error:skb_compress: " + "deflateInit2() returned error %d (%s), " + "skipping compression.\n", + zresult, + zs.msg ? zs.msg : zError(zresult)); + *flags |= IPCOMP_COMPRESSIONERROR; + return skb; + } + + + /* Max output size. Result should be max this size. + * Implementation specific tweak: + * If it's not at least 32 bytes and 6.25% smaller than + * the original packet, it's probably not worth wasting + * the receiver's CPU cycles decompressing it. + * Your mileage may vary. + */ + cpyldsz = pyldsz - sizeof(struct ipcomphdr) - (pyldsz <= 512 ? 32 : pyldsz >> 4); + + buffer = kmalloc(cpyldsz, GFP_ATOMIC); + if (!buffer) { + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_error:skb_compress: " + "unable to kmalloc(%d, GFP_ATOMIC), " + "skipping compression.\n", + cpyldsz); + *flags |= IPCOMP_COMPRESSIONERROR; + deflateEnd(&zs); + return skb; + } + +#ifdef CONFIG_KLIPS_DEBUG + if(sysctl_ipsec_debug_ipcomp && sysctl_ipsec_debug_verbose) { + __u8 *c; + + c = (__u8*)iph + iphlen; + ipsec_dmp_block("compress before", c, pyldsz); + } +#endif /* CONFIG_KLIPS_DEBUG */ + + zs.next_in = (char *) iph + iphlen; /* start of payload */ + zs.avail_in = pyldsz; + zs.next_out = buffer; /* start of compressed payload */ + zs.avail_out = cpyldsz; + + /* Finish compression in one step */ + zresult = deflate(&zs, Z_FINISH); + + /* Free all dynamically allocated buffers */ + deflateEnd(&zs); + if (zresult != Z_STREAM_END) { + *flags |= IPCOMP_UNCOMPRESSABLE; + kfree(buffer); + + /* Adjust adaptive counters */ + if (++(ips->ips_comp_adapt_tries) == IPCOMP_ADAPT_INITIAL_TRIES) { + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_debug:skb_compress: " + "first %d packets didn't compress, " + "skipping next %d\n", + IPCOMP_ADAPT_INITIAL_TRIES, + IPCOMP_ADAPT_INITIAL_SKIP); + ips->ips_comp_adapt_skip = IPCOMP_ADAPT_INITIAL_SKIP; + } + else if (ips->ips_comp_adapt_tries == IPCOMP_ADAPT_INITIAL_TRIES + IPCOMP_ADAPT_SUBSEQ_TRIES) { + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_debug:skb_compress: " + "next %d packets didn't compress, " + "skipping next %d\n", + IPCOMP_ADAPT_SUBSEQ_TRIES, + IPCOMP_ADAPT_SUBSEQ_SKIP); + ips->ips_comp_adapt_skip = IPCOMP_ADAPT_SUBSEQ_SKIP; + ips->ips_comp_adapt_tries = IPCOMP_ADAPT_INITIAL_TRIES; + } + + return skb; + } + + /* resulting compressed size */ + cpyldsz -= zs.avail_out; + + /* Insert IPCOMP header */ + ((struct ipcomphdr*) ((char*) iph + iphlen))->ipcomp_nh = iph->protocol; + ((struct ipcomphdr*) ((char*) iph + iphlen))->ipcomp_flags = 0; + /* use the bottom 16 bits of the spi for the cpi. The top 16 bits are + for internal reference only. */ + ((struct ipcomphdr*) (((char*)iph) + iphlen))->ipcomp_cpi = htons((__u16)(ntohl(ips->ips_said.spi) & 0x0000ffff)); + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_debug:skb_compress: " + "spi=%08x, spi&0xffff=%04x, cpi=%04x, payload size: raw=%d, comp=%d.\n", + ntohl(ips->ips_said.spi), + ntohl(ips->ips_said.spi) & 0x0000ffff, + ntohs(((struct ipcomphdr*)(((char*)iph)+iphlen))->ipcomp_cpi), + pyldsz, + cpyldsz); + + /* Update IP header */ + iph->protocol = IPPROTO_COMP; + iph->tot_len = htons(iphlen + sizeof(struct ipcomphdr) + cpyldsz); +#if 1 /* XXX checksum is done by ipsec_tunnel ? */ + iph->check = 0; + iph->check = ip_fast_csum((char *) iph, iph->ihl); +#endif + + /* Copy compressed payload */ + memcpy((char *) iph + iphlen + sizeof(struct ipcomphdr), + buffer, + cpyldsz); + kfree(buffer); + + /* Update skb length/tail by "unputting" the shrinkage */ + safe_skb_put (skb, cpyldsz + sizeof(struct ipcomphdr) - pyldsz); + +#ifdef CONFIG_KLIPS_DEBUG + if(sysctl_ipsec_debug_ipcomp && sysctl_ipsec_debug_verbose) { + __u8 *c; + + c = (__u8*)iph + iphlen + sizeof(struct ipcomphdr); + ipsec_dmp_block("compress result", c, cpyldsz); + } +#endif /* CONFIG_KLIPS_DEBUG */ + + ips->ips_comp_adapt_skip = 0; + ips->ips_comp_adapt_tries = 0; + + return skb; +} + +struct sk_buff *skb_decompress(struct sk_buff *skb, struct ipsec_sa *ips, unsigned int *flags) +{ + struct sk_buff *nskb = NULL; + + /* original ip header */ + struct iphdr *oiph, *iph; + unsigned int iphlen, pyldsz, cpyldsz; + z_stream zs; + int zresult; + + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_debug:skb_decompress: .\n"); + + if(!skb) { + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_error:skb_decompress: " + "passed in NULL skb, returning ERROR.\n"); + if (flags) *flags |= IPCOMP_PARMERROR; + return skb; + } + + if(!ips && sysctl_ipsec_inbound_policy_check) { + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_error:skb_decompress: " + "passed in NULL ipsec_sa needed for comp alg, returning ERROR.\n"); + if (flags) *flags |= IPCOMP_PARMERROR; + return skb; + } + + if (!flags) { + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_error:skb_decompress: " + "passed in NULL flags, returning ERROR.\n"); + ipsec_kfree_skb(skb); + return NULL; + } + +#ifdef NET_21 + oiph = skb->nh.iph; +#else /* NET_21 */ + oiph = skb->ip_hdr; +#endif /* NET_21 */ + + iphlen = oiph->ihl << 2; + + if (oiph->protocol != IPPROTO_COMP) { + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_error:skb_decompress: " + "called with non-IPCOMP packet (protocol=%d)," + "skipping decompression.\n", + oiph->protocol); + *flags |= IPCOMP_PARMERROR; + return skb; + } + + if ( (((struct ipcomphdr*)((char*) oiph + iphlen))->ipcomp_flags != 0) + || ((((struct ipcomphdr*) ((char*) oiph + iphlen))->ipcomp_cpi + != htons(SADB_X_CALG_DEFLATE)) + && sysctl_ipsec_inbound_policy_check + && (!ips || (ips && (ips->ips_encalg != SADB_X_CALG_DEFLATE)))) ) { + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_error:skb_decompress: " + "called with incompatible IPCOMP packet (flags=%d, " + "cpi=%d), ips-compalg=%d, skipping decompression.\n", + ntohs(((struct ipcomphdr*) ((char*) oiph + iphlen))->ipcomp_flags), + ntohs(((struct ipcomphdr*) ((char*) oiph + iphlen))->ipcomp_cpi), + ips ? ips->ips_encalg : 0); + *flags |= IPCOMP_PARMERROR; + + return skb; + } + + if (ntohs(oiph->frag_off) & ~0x4000) { + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_error:skb_decompress: " + "called with fragmented IPCOMP packet, " + "skipping decompression.\n"); + *flags |= IPCOMP_PARMERROR; + return skb; + } + + /* original compressed payload size */ + cpyldsz = ntohs(oiph->tot_len) - iphlen - sizeof(struct ipcomphdr); + + zs.zalloc = my_zcalloc; + zs.zfree = my_zfree; + zs.opaque = 0; + + zs.next_in = (char *) oiph + iphlen + sizeof(struct ipcomphdr); + zs.avail_in = cpyldsz; + + /* Maybe we should be a bit conservative about memory + requirements and use inflateInit2 */ + /* Beware, that this might make us unable to decompress packets + from other implementations - HINT: check PGPnet source code */ + /* We want to use inflateInit2 because we don't want the adler + header. */ + zresult = inflateInit2(&zs, -15); + if (zresult != Z_OK) { + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_error:skb_decompress: " + "inflateInit2() returned error %d (%s), " + "skipping decompression.\n", + zresult, + zs.msg ? zs.msg : zError(zresult)); + *flags |= IPCOMP_DECOMPRESSIONERROR; + + return skb; + } + + /* We have no way of knowing the exact length of the resulting + decompressed output before we have actually done the decompression. + For now, we guess that the packet will not be bigger than the + attached ipsec device's mtu or 16260, whichever is biggest. + This may be wrong, since the sender's mtu may be bigger yet. + XXX This must be dealt with later XXX + */ + + /* max payload size */ + pyldsz = skb->dev ? (skb->dev->mtu < 16260 ? 16260 : skb->dev->mtu) + : (65520 - iphlen); + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_debug:skb_decompress: " + "max payload size: %d\n", pyldsz); + + while (pyldsz > (cpyldsz + sizeof(struct ipcomphdr)) && + (nskb = skb_copy_ipcomp(skb, + pyldsz - cpyldsz - sizeof(struct ipcomphdr), + GFP_ATOMIC)) == NULL) { + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_error:skb_decompress: " + "unable to skb_copy_ipcomp(skb, %d, GFP_ATOMIC), " + "trying with less payload size.\n", + (int)(pyldsz - cpyldsz - sizeof(struct ipcomphdr))); + pyldsz >>=1; + } + + if (!nskb) { + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_error:skb_decompress: " + "unable to allocate memory, dropping packet.\n"); + *flags |= IPCOMP_DECOMPRESSIONERROR; + inflateEnd(&zs); + + return skb; + } + +#ifdef CONFIG_KLIPS_DEBUG + if(sysctl_ipsec_debug_ipcomp && sysctl_ipsec_debug_verbose) { + __u8 *c; + + c = (__u8*)oiph + iphlen + sizeof(struct ipcomphdr); + ipsec_dmp_block("decompress before", c, cpyldsz); + } +#endif /* CONFIG_KLIPS_DEBUG */ + +#ifdef NET_21 + iph = nskb->nh.iph; +#else /* NET_21 */ + iph = nskb->ip_hdr; +#endif /* NET_21 */ + zs.next_out = (char *)iph + iphlen; + zs.avail_out = pyldsz; + + zresult = inflate(&zs, Z_SYNC_FLUSH); + + /* work around a bug in zlib, which sometimes wants to taste an extra + * byte when being used in the (undocumented) raw deflate mode. + */ + if (zresult == Z_OK && !zs.avail_in && zs.avail_out) { + __u8 zerostuff = 0; + + zs.next_in = &zerostuff; + zs.avail_in = 1; + zresult = inflate(&zs, Z_FINISH); + } + + inflateEnd(&zs); + if (zresult != Z_STREAM_END) { + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_error:skb_decompress: " + "inflate() returned error %d (%s), " + "skipping decompression.\n", + zresult, + zs.msg ? zs.msg : zError(zresult)); + *flags |= IPCOMP_DECOMPRESSIONERROR; + ipsec_kfree_skb(nskb); + + return skb; + } + + /* Update IP header */ + /* resulting decompressed size */ + pyldsz -= zs.avail_out; + iph->tot_len = htons(iphlen + pyldsz); + iph->protocol = ((struct ipcomphdr*) ((char*) oiph + iphlen))->ipcomp_nh; + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_debug:skb_decompress: " + "spi=%08x, spi&0xffff=%04x, cpi=%04x, payload size: comp=%d, raw=%d, nh=%d.\n", + ips ? ntohl(ips->ips_said.spi) : 0, + ips ? ntohl(ips->ips_said.spi) & 0x0000ffff : 0, + ntohs(((struct ipcomphdr*)(((char*)oiph)+iphlen))->ipcomp_cpi), + cpyldsz, + pyldsz, + iph->protocol); + +#if 1 /* XXX checksum is done by ipsec_rcv ? */ + iph->check = 0; + iph->check = ip_fast_csum((char*) iph, iph->ihl); +#endif + + /* Update skb length/tail by "unputting" the unused data area */ + safe_skb_put(nskb, -zs.avail_out); + + ipsec_kfree_skb(skb); + + if (iph->protocol == IPPROTO_COMP) + { +#ifdef CONFIG_KLIPS_DEBUG + if(sysctl_ipsec_debug_ipcomp) + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_debug:skb_decompress: " + "Eh? inner packet is also compressed, dropping.\n"); +#endif /* CONFIG_KLIPS_DEBUG */ + + ipsec_kfree_skb(nskb); + return NULL; + } + +#ifdef CONFIG_KLIPS_DEBUG + if(sysctl_ipsec_debug_ipcomp && sysctl_ipsec_debug_verbose) { + __u8 *c; + + c = (__u8*)iph + iphlen; + ipsec_dmp_block("decompress result", c, pyldsz); + } +#endif /* CONFIG_KLIPS_DEBUG */ + + return nskb; +} + + +/* this is derived from skb_copy() in linux 2.2.14 */ +/* May be incompatible with other kernel versions!! */ +static +struct sk_buff *skb_copy_ipcomp(struct sk_buff *skb, int data_growth, int gfp_mask) +{ + struct sk_buff *n; + struct iphdr *iph; + unsigned long offset; + unsigned int iphlen; + + if(!skb) { + KLIPS_PRINT(sysctl_ipsec_debug_ipcomp, + "klips_debug:skb_copy_ipcomp: " + "passed in NULL skb, returning NULL.\n"); + return NULL; + } + + /* + * Allocate the copy buffer + */ + +#ifdef NET_21 + iph = skb->nh.iph; +#else /* NET_21 */ + iph = skb->ip_hdr; +#endif /* NET_21 */ + if (!iph) return NULL; + iphlen = iph->ihl << 2; + + n=alloc_skb(skb->end - skb->head + data_growth, gfp_mask); + if(n==NULL) + return NULL; + + /* + * Shift between the two data areas in bytes + */ + + offset=n->head-skb->head; + + /* Set the data pointer */ + skb_reserve(n,skb->data-skb->head); + /* Set the tail pointer and length */ + safe_skb_put(n,skb->len+data_growth); + /* Copy the bytes up to and including the ip header */ + memcpy(n->head, + skb->head, + ((char *)iph - (char *)skb->head) + iphlen); +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,14) + n->list=NULL; +#endif + n->next=NULL; + n->prev=NULL; + n->sk=NULL; + n->dev=skb->dev; + if (skb->h.raw) + n->h.raw=skb->h.raw+offset; + else + n->h.raw=NULL; + n->protocol=skb->protocol; +#ifdef NET_21 + n->csum = 0; + n->priority=skb->priority; + n->dst=dst_clone(skb->dst); + n->nh.raw=skb->nh.raw+offset; +#ifndef NETDEV_23 + n->is_clone=0; +#endif /* NETDEV_23 */ + atomic_set(&n->users, 1); + n->destructor = NULL; +#ifdef HAVE_SOCK_SECURITY + n->security=skb->security; +#endif + memcpy(n->cb, skb->cb, sizeof(skb->cb)); +#ifdef CONFIG_IP_FIREWALL + n->fwmark = skb->fwmark; +#endif +#else /* NET_21 */ + n->link3=NULL; + n->when=skb->when; + n->ip_hdr=(struct iphdr *)(((char *)skb->ip_hdr)+offset); + n->saddr=skb->saddr; + n->daddr=skb->daddr; + n->raddr=skb->raddr; + n->seq=skb->seq; + n->end_seq=skb->end_seq; + n->ack_seq=skb->ack_seq; + n->acked=skb->acked; + n->free=1; + n->arp=skb->arp; + n->tries=0; + n->lock=0; + n->users=0; + memcpy(n->proto_priv, skb->proto_priv, sizeof(skb->proto_priv)); +#endif /* NET_21 */ + if (skb->mac.raw) + n->mac.raw=skb->mac.raw+offset; + else + n->mac.raw=NULL; +#ifndef NETDEV_23 + n->used=skb->used; +#endif /* !NETDEV_23 */ + n->pkt_type=skb->pkt_type; +#ifndef NETDEV_23 + n->pkt_bridged=skb->pkt_bridged; +#endif /* NETDEV_23 */ + n->ip_summed=0; +#ifdef HAVE_TSTAMP + n->tstamp = skb->tstamp; +#else + n->stamp=skb->stamp; +#endif +#ifndef NETDEV_23 /* this seems to have been removed in 2.4 */ +#if defined(CONFIG_SHAPER) || defined(CONFIG_SHAPER_MODULE) + n->shapelatency=skb->shapelatency; /* Latency on frame */ + n->shapeclock=skb->shapeclock; /* Time it should go out */ + n->shapelen=skb->shapelen; /* Frame length in clocks */ + n->shapestamp=skb->shapestamp; /* Stamp for shaper */ + n->shapepend=skb->shapepend; /* Pending */ +#endif /* defined(CONFIG_SHAPER) || defined(CONFIG_SHAPER_MODULE) */ +#endif /* NETDEV_23 */ + + return n; +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ipsec_ah.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,407 @@ +/* + * processing code for AH + * Copyright (C) 2003-2004 Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +char ipsec_ah_c_version[] = "RCSID $Id: ipsec_ah.c,v 1.12.2.2 2006/10/06 21:39:26 paul Exp $"; +#ifndef AUTOCONF_INCLUDED +#include +#endif +#include + +#define __NO_VERSION__ +#include +#include /* printk() */ + +#include "openswan/ipsec_param.h" + +#ifdef MALLOC_SLAB +# include /* kmalloc() */ +#else /* MALLOC_SLAB */ +# include /* kmalloc() */ +#endif /* MALLOC_SLAB */ +#include /* error codes */ +#include /* size_t */ +#include /* mark_bh */ + +#include /* struct device, and other headers */ +#include /* eth_type_trans */ +#include /* struct iphdr */ +#include +#include +#ifdef SPINLOCK +# ifdef SPINLOCK_23 +# include /* *lock* */ +# else /* SPINLOCK_23 */ +# include /* *lock* */ +# endif /* SPINLOCK_23 */ +#endif /* SPINLOCK */ + +#include +#include + +#include "openswan/radij.h" +#include "openswan/ipsec_encap.h" +#include "openswan/ipsec_sa.h" + +#include "openswan/ipsec_radij.h" +#include "openswan/ipsec_xform.h" +#include "openswan/ipsec_tunnel.h" +#include "openswan/ipsec_rcv.h" +#include "openswan/ipsec_xmit.h" + +#include "openswan/ipsec_auth.h" +#include "openswan/ipsec_ah.h" +#include "openswan/ipsec_proto.h" + +__u32 zeroes[AH_AMAX]; + +enum ipsec_rcv_value +ipsec_rcv_ah_checks(struct ipsec_rcv_state *irs, + struct sk_buff *skb) +{ + int ahminlen; + + ahminlen = irs->hard_header_len + sizeof(struct iphdr); + + /* take care not to deref this pointer until we check the minlen though */ + irs->protostuff.ahstuff.ahp = (struct ahhdr *)skb->h.raw; + + if((skb->len < ahminlen+sizeof(struct ahhdr)) || + (skb->len < ahminlen+(irs->protostuff.ahstuff.ahp->ah_hl << 2))) { + KLIPS_PRINT(debug_rcv & DB_RX_INAU, + "klips_debug:ipsec_rcv: " + "runt ah packet of skb->len=%d received from %s, dropped.\n", + skb->len, + irs->ipsaddr_txt); + if(irs->stats) { + irs->stats->rx_errors++; + } + return IPSEC_RCV_BADLEN; + } + + irs->said.spi = irs->protostuff.ahstuff.ahp->ah_spi; + + /* XXX we only support the one 12-byte authenticator for now */ + if(irs->protostuff.ahstuff.ahp->ah_hl != ((AHHMAC_HASHLEN+AHHMAC_RPLLEN) >> 2)) { + KLIPS_PRINT(debug_rcv & DB_RX_INAU, + "klips_debug:ipsec_rcv: " + "bad authenticator length %ld, expected %lu from %s.\n", + (long)(irs->protostuff.ahstuff.ahp->ah_hl << 2), + (unsigned long) sizeof(struct ahhdr), + irs->ipsaddr_txt); + if(irs->stats) { + irs->stats->rx_errors++; + } + return IPSEC_RCV_BADLEN; + } + + return IPSEC_RCV_OK; +} + + +enum ipsec_rcv_value +ipsec_rcv_ah_setup_auth(struct ipsec_rcv_state *irs, + struct sk_buff *skb, + __u32 *replay, + unsigned char **authenticator) +{ + struct ahhdr *ahp = irs->protostuff.ahstuff.ahp; + + *replay = ntohl(ahp->ah_rpl); + *authenticator = ahp->ah_data; + + return IPSEC_RCV_OK; +} + +enum ipsec_rcv_value +ipsec_rcv_ah_authcalc(struct ipsec_rcv_state *irs, + struct sk_buff *skb) +{ + struct auth_alg *aa; + struct ahhdr *ahp = irs->protostuff.ahstuff.ahp; + union { + MD5_CTX md5; + SHA1_CTX sha1; + } tctx; + struct iphdr ipo; + int ahhlen; + + aa = irs->authfuncs; + + /* copy the initialized keying material */ + memcpy(&tctx, irs->ictx, irs->ictx_len); + + ipo = *irs->ipp; + ipo.tos = 0; /* mutable RFC 2402 3.3.3.1.1.1 */ + ipo.frag_off = 0; + ipo.ttl = 0; + ipo.check = 0; + + + /* do the sanitized header */ + (*aa->update)((void*)&tctx, (caddr_t)&ipo, sizeof(struct iphdr)); + + /* XXX we didn't do the options here! */ + + /* now do the AH header itself */ + ahhlen = AH_BASIC_LEN + (ahp->ah_hl << 2); + (*aa->update)((void*)&tctx, (caddr_t)ahp, ahhlen - AHHMAC_HASHLEN); + + /* now, do some zeroes */ + (*aa->update)((void*)&tctx, (caddr_t)zeroes, AHHMAC_HASHLEN); + + /* finally, do the packet contents themselves */ + (*aa->update)((void*)&tctx, + (caddr_t)skb->h.raw + ahhlen, + skb->len - ahhlen); + + (*aa->final)(irs->hash, (void *)&tctx); + + memcpy(&tctx, irs->octx, irs->octx_len); + + (*aa->update)((void *)&tctx, irs->hash, aa->hashlen); + (*aa->final)(irs->hash, (void *)&tctx); + + return IPSEC_RCV_OK; +} + +enum ipsec_rcv_value +ipsec_rcv_ah_decap(struct ipsec_rcv_state *irs) +{ + struct ahhdr *ahp = irs->protostuff.ahstuff.ahp; + struct sk_buff *skb; + int ahhlen; + + skb=irs->skb; + + ahhlen = AH_BASIC_LEN + (ahp->ah_hl << 2); + + irs->ipp->tot_len = htons(ntohs(irs->ipp->tot_len) - ahhlen); + irs->next_header = ahp->ah_nh; + + /* + * move the IP header forward by the size of the AH header, which + * will remove the the AH header from the packet. + */ + memmove((void *)(skb->nh.raw + ahhlen), + (void *)(skb->nh.raw), irs->iphlen); + + ipsec_rcv_dmp("ah postmove", skb->data, skb->len); + + /* skb_pull below, will move up by ahhlen */ + + /* XXX not clear how this can happen, as the message indicates */ + if(skb->len < ahhlen) { + printk(KERN_WARNING + "klips_error:ipsec_rcv: " + "tried to skb_pull ahhlen=%d, %d available. This should never happen, please report.\n", + ahhlen, + (int)(skb->len)); + return IPSEC_RCV_DECAPFAIL; + } + skb_pull(skb, ahhlen); + + skb->nh.raw = skb->nh.raw + ahhlen; + irs->ipp = skb->nh.iph; + + ipsec_rcv_dmp("ah postpull", (void *)skb->nh.iph, skb->len); + + return IPSEC_RCV_OK; +} + +enum ipsec_xmit_value +ipsec_xmit_ah_setup(struct ipsec_xmit_state *ixs) +{ + struct iphdr ipo; + struct ahhdr *ahp; + __u8 hash[AH_AMAX]; + union { +#ifdef CONFIG_KLIPS_AUTH_HMAC_MD5 + MD5_CTX md5; +#endif /* CONFIG_KLIPS_AUTH_HMAC_MD5 */ +#ifdef CONFIG_KLIPS_AUTH_HMAC_SHA1 + SHA1_CTX sha1; +#endif /* CONFIG_KLIPS_AUTH_HMAC_SHA1 */ + } tctx; + unsigned char *dat = (unsigned char *)ixs->iph; + + ahp = (struct ahhdr *)(dat + ixs->iphlen); + ahp->ah_spi = ixs->ipsp->ips_said.spi; + ahp->ah_rpl = htonl(++(ixs->ipsp->ips_replaywin_lastseq)); + ahp->ah_rv = 0; + ahp->ah_nh = ixs->iph->protocol; + ahp->ah_hl = (sizeof(struct ahhdr) >> 2) - sizeof(__u64)/sizeof(__u32); + ixs->iph->protocol = IPPROTO_AH; + ipsec_xmit_dmp("ahp", (char*)ahp, sizeof(*ahp)); + + ipo = *ixs->iph; + ipo.tos = 0; + ipo.frag_off = 0; + ipo.ttl = 0; + ipo.check = 0; + ipsec_xmit_dmp("ipo", (char*)&ipo, sizeof(ipo)); + + switch(ixs->ipsp->ips_authalg) { +#ifdef CONFIG_KLIPS_AUTH_HMAC_MD5 + case AH_MD5: + tctx.md5 = ((struct md5_ctx*)(ixs->ipsp->ips_key_a))->ictx; + ipsec_xmit_dmp("ictx", (char*)&tctx.md5, sizeof(tctx.md5)); + osMD5Update(&tctx.md5, (unsigned char *)&ipo, sizeof (struct iphdr)); + ipsec_xmit_dmp("ictx+ipo", (char*)&tctx.md5, sizeof(tctx.md5)); + osMD5Update(&tctx.md5, (unsigned char *)ahp, + sizeof(struct ahhdr) - sizeof(ahp->ah_data)); + ipsec_xmit_dmp("ictx+ahp", (char*)&tctx.md5, sizeof(tctx.md5)); + osMD5Update(&tctx.md5, (unsigned char *)zeroes, AHHMAC_HASHLEN); + ipsec_xmit_dmp("ictx+zeroes", (char*)&tctx.md5, sizeof(tctx.md5)); + osMD5Update(&tctx.md5, dat + ixs->iphlen + sizeof(struct ahhdr), + ixs->skb->len - ixs->iphlen - sizeof(struct ahhdr)); + ipsec_xmit_dmp("ictx+dat", (char*)&tctx.md5, sizeof(tctx.md5)); + osMD5Final(hash, &tctx.md5); + ipsec_xmit_dmp("ictx hash", (char*)&hash, sizeof(hash)); + tctx.md5 = ((struct md5_ctx*)(ixs->ipsp->ips_key_a))->octx; + ipsec_xmit_dmp("octx", (char*)&tctx.md5, sizeof(tctx.md5)); + osMD5Update(&tctx.md5, hash, AHMD596_ALEN); + ipsec_xmit_dmp("octx+hash", (char*)&tctx.md5, sizeof(tctx.md5)); + osMD5Final(hash, &tctx.md5); + ipsec_xmit_dmp("octx hash", (char*)&hash, sizeof(hash)); + + memcpy(ahp->ah_data, hash, AHHMAC_HASHLEN); + + /* paranoid */ + memset((caddr_t)&tctx.md5, 0, sizeof(tctx.md5)); + memset((caddr_t)hash, 0, sizeof(*hash)); + break; +#endif /* CONFIG_KLIPS_AUTH_HMAC_MD5 */ +#ifdef CONFIG_KLIPS_AUTH_HMAC_SHA1 + case AH_SHA: + tctx.sha1 = ((struct sha1_ctx*)(ixs->ipsp->ips_key_a))->ictx; + SHA1Update(&tctx.sha1, (unsigned char *)&ipo, sizeof (struct iphdr)); + SHA1Update(&tctx.sha1, (unsigned char *)ahp, sizeof(struct ahhdr) - sizeof(ahp->ah_data)); + SHA1Update(&tctx.sha1, (unsigned char *)zeroes, AHHMAC_HASHLEN); + SHA1Update(&tctx.sha1, dat + ixs->iphlen + sizeof(struct ahhdr), + ixs->skb->len - ixs->iphlen - sizeof(struct ahhdr)); + SHA1Final(hash, &tctx.sha1); + tctx.sha1 = ((struct sha1_ctx*)(ixs->ipsp->ips_key_a))->octx; + SHA1Update(&tctx.sha1, hash, AHSHA196_ALEN); + SHA1Final(hash, &tctx.sha1); + + memcpy(ahp->ah_data, hash, AHHMAC_HASHLEN); + + /* paranoid */ + memset((caddr_t)&tctx.sha1, 0, sizeof(tctx.sha1)); + memset((caddr_t)hash, 0, sizeof(*hash)); + break; +#endif /* CONFIG_KLIPS_AUTH_HMAC_SHA1 */ + default: + ixs->stats->tx_errors++; + return IPSEC_XMIT_AH_BADALG; + } +#ifdef NET_21 + ixs->skb->h.raw = (unsigned char*)ahp; +#endif /* NET_21 */ + + return IPSEC_XMIT_OK; +} + +struct xform_functions ah_xform_funcs[]={ + { rcv_checks: ipsec_rcv_ah_checks, + rcv_setup_auth: ipsec_rcv_ah_setup_auth, + rcv_calc_auth: ipsec_rcv_ah_authcalc, + rcv_decrypt: ipsec_rcv_ah_decap, + + xmit_setup: ipsec_xmit_ah_setup, + xmit_headroom: sizeof(struct ahhdr), + xmit_needtailroom: 0, + }, +}; + + +#ifdef NET_26 +struct inet_protocol ah_protocol = { + .handler = ipsec_rcv, + .no_policy = 1, +}; +#else +struct inet_protocol ah_protocol = +{ + ipsec_rcv, /* AH handler */ + NULL, /* TUNNEL error control */ +#ifdef NETDEV_25 + 1, /* no policy */ +#else + 0, /* next */ + IPPROTO_AH, /* protocol ID */ + 0, /* copy */ + NULL, /* data */ + "AH" /* name */ +#endif +}; +#endif /* NET_26 */ + +/* + * $Log: ipsec_ah.c,v $ + * Revision 1.12.2.2 2006/10/06 21:39:26 paul + * Fix for 2.6.18+ only include linux/config.h if AUTOCONF_INCLUDED is not + * set. This is defined through autoconf.h which is included through the + * linux kernel build macros. + * + * Revision 1.12.2.1 2006/02/15 05:35:14 paul + * Patch by David McCullough + * If you setup a tunnel without ESP it doesn't work. It used to work in + * an older openswan version but stopped when klips was modified to deal + * with the pulled IP header on the received SKB's. + * + * The code in ipsec_ah.c still thinks the IP header is there and runs the + * hash on the incorrect data. + * + * Revision 1.12 2005/04/29 05:10:22 mcr + * removed from extraenous includes to make unit testing easier. + * + * Revision 1.11 2005/04/15 19:50:55 mcr + * adjustments to use proper skb fields for data. + * + * Revision 1.10 2004/09/14 00:22:57 mcr + * adjustment of MD5* functions. + * + * Revision 1.9 2004/09/13 02:22:47 mcr + * #define inet_protocol if necessary. + * + * Revision 1.8 2004/09/06 18:35:48 mcr + * 2.6.8.1 gets rid of inet_protocol->net_protocol compatibility, + * so adjust for that. + * + * Revision 1.7 2004/08/22 05:00:48 mcr + * if we choose to compile the file, we want the contents, + * so don't pull any punches. + * + * Revision 1.6 2004/08/17 03:27:23 mcr + * klips 2.6 edits. + * + * Revision 1.5 2004/08/14 03:28:24 mcr + * fixed log comment to remove warning about embedded comment. + * + * Revision 1.4 2004/08/04 15:57:07 mcr + * moved des .h files to include/des/ * + * included 2.6 protocol specific things + * started at NAT-T support, but it will require a kernel patch. + * + * Revision 1.3 2004/07/10 19:11:18 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.2 2004/04/06 02:49:25 mcr + * pullup of algo code from alg-branch. + * + * + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ipsec_alg.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,1057 @@ +/* + * Modular extensions service and registration functions + * + * Author: JuanJo Ciarlante + * + * Version: 0.8.1 + * + * ipsec_alg.c,v 1.1.2.1 2003/11/21 18:12:23 jjo Exp + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + */ +#define __NO_VERSION__ + +#if defined (MODULE) +#include +#endif + +#include /* printk() */ + +#include /* struct device, and other headers */ +#include /* eth_type_trans */ +#include /* struct iphdr */ +#include +#include +#include +#include +#include /* memcmp() */ +#include /* get_random_bytes() */ +#include /* error codes */ +#ifdef SPINLOCK +# ifdef SPINLOCK_23 +# include /* *lock* */ +# else /* SPINLOCK_23 */ +# include /* *lock* */ +# endif /* SPINLOCK_23 */ +#endif /* SPINLOCK */ + +#include "openswan/ipsec_param.h" +#include +#include "openswan/ipsec_sa.h" +#include "openswan/radij.h" +#include "openswan/ipsec_encap.h" +#include "openswan/ipsec_radij.h" +#include "openswan/ipsec_xform.h" +#include "openswan/ipsec_tunnel.h" +#include "openswan/ipsec_rcv.h" +#if defined(CONFIG_KLIPS_ESP) || defined(CONFIG_KLIPS_AH) +# include "openswan/ipsec_ah.h" +#endif /* defined(CONFIG_KLIPS_ESP) || defined(CONFIG_KLIPS_AH) */ +#ifdef CONFIG_KLIPS_ESP +# include "openswan/ipsec_esp.h" +#endif /* !CONFIG_KLIPS_ESP */ +#ifdef CONFIG_KLIPS_IPCOMP +# include "openswan/ipcomp.h" +#endif /* CONFIG_KLIPS_COMP */ + +#include +#include + +#include "openswan/ipsec_alg.h" +#include "openswan/ipsec_proto.h" + +#if SADB_EALG_MAX < 255 +#warning Compiling with limited ESP support ( SADB_EALG_MAX < 256 ) +#endif + +static rwlock_t ipsec_alg_lock = RW_LOCK_UNLOCKED; +#define IPSEC_ALG_HASHSZ 16 /* must be power of 2, even 2^0=1 */ +static struct list_head ipsec_alg_hash_table[IPSEC_ALG_HASHSZ]; + +/* Old gcc's will fail here */ +#define barf_out(fmt, args...) do { struct ipsec_alg *ixtc = (struct ipsec_alg *)ixt; printk(KERN_ERR "%s: (%s) " fmt, __FUNCTION__, ixtc->ixt_name , ## args) \ + ; goto out; } while(0) + +#ifdef NET_26 +/* + * Must be already protected by lock + */ +static void __ipsec_alg_usage_inc(struct ipsec_alg *ixt) +{ +#ifdef MODULE + if (ixt->ixt_module) + try_module_get(ixt->ixt_module); +#endif + atomic_inc(&ixt->ixt_refcnt); +} +static void __ipsec_alg_usage_dec(struct ipsec_alg *ixt) { + atomic_dec(&ixt->ixt_refcnt); +#ifdef MODULE + if (ixt->ixt_module) + module_put(ixt->ixt_module); +#endif +} + +#else + +/* + * Must be already protected by lock + */ +static void __ipsec_alg_usage_inc(struct ipsec_alg *ixt) { +#ifdef MODULE + if (ixt->ixt_module) { + __MOD_INC_USE_COUNT(ixt->ixt_module); + } +#endif + atomic_inc(&ixt->ixt_refcnt); +} +static void __ipsec_alg_usage_dec(struct ipsec_alg *ixt) { + atomic_dec(&ixt->ixt_refcnt); +#ifdef MODULE + if (ixt->ixt_module) + __MOD_DEC_USE_COUNT(ixt->ixt_module); +#endif +} +#endif + +/* + * simple hash function, optimized for 0-hash (1 list) special + * case + */ +#if IPSEC_ALG_HASHSZ > 1 +static inline unsigned ipsec_alg_hashfn(int alg_type, int alg_id) { + return ((alg_type^alg_id)&(IPSEC_ALG_HASHSZ-1)); +} +#else +#define ipsec_alg_hashfn(x,y) (0) +#endif + +/***************************************************************** + * + * INTERNAL table handling: insert, delete, find + * + *****************************************************************/ + +/* + * hash table initialization, called from ipsec_alg_init() + */ +static void ipsec_alg_hash_init(void) { + struct list_head *head = ipsec_alg_hash_table; + int i = IPSEC_ALG_HASHSZ; + do { + INIT_LIST_HEAD(head); + head++; + i--; + } while (i); +} +/* + * hash list lookup by {alg_type, alg_id} and table head, + * must be already protected by lock + */ +static struct ipsec_alg *__ipsec_alg_find(unsigned alg_type, unsigned alg_id, struct list_head * head) { + struct list_head *p; + struct ipsec_alg *ixt=NULL; + for (p=head->next; p!=head; p=p->next) { + ixt = list_entry(p, struct ipsec_alg, ixt_list); + if (ixt->ixt_alg_type == alg_type && ixt->ixt_alg_id==alg_id) { + goto out; + } + } + ixt=NULL; +out: + return ixt; +} +/* + * inserts (in front) a new entry in hash table, + * called from ipsec_alg_register() when new algorithm is registered. + */ +static int ipsec_alg_insert(struct ipsec_alg *ixt) { + int ret=-EINVAL; + unsigned hashval=ipsec_alg_hashfn(ixt->ixt_alg_type, ixt->ixt_alg_id); + struct list_head *head= ipsec_alg_hash_table + hashval; + struct ipsec_alg *ixt_cur; + + /* new element must be virgin ... */ + if (ixt->ixt_list.next != &ixt->ixt_list || + ixt->ixt_list.prev != &ixt->ixt_list) { + printk(KERN_ERR "ipsec_alg_insert: ixt object \"%s\" " + "list head not initialized\n", + ixt->ixt_name); + return ret; + } + write_lock_bh(&ipsec_alg_lock); + + ixt_cur = __ipsec_alg_find(ixt->ixt_alg_type, ixt->ixt_alg_id, head); + + /* if previous (current) ipsec_alg found check excl flag of _anyone_ */ + if (ixt_cur + && ((ixt->ixt_state|ixt_cur->ixt_state) & IPSEC_ALG_ST_EXCL)) { + barf_out("ipsec_alg for alg_type=%d, alg_id=%d already exist. " + "Not loaded (ret=%d).\n", + ixt->ixt_alg_type, + ixt->ixt_alg_id, ret=-EEXIST); + } + list_add(&ixt->ixt_list, head); + ixt->ixt_state |= IPSEC_ALG_ST_REGISTERED; + ret=0; +out: + write_unlock_bh(&ipsec_alg_lock); + return ret; +} + +/* + * deletes an existing entry in hash table, + * called from ipsec_alg_unregister() when algorithm is unregistered. + */ +static int ipsec_alg_delete(struct ipsec_alg *ixt) { + write_lock_bh(&ipsec_alg_lock); + list_del(&ixt->ixt_list); + write_unlock_bh(&ipsec_alg_lock); + return 0; +} + +/* + * here @user context (read-only when @kernel bh context) + * -> no bh disabling + * + * called from ipsec_sa_init() -> ipsec_alg_sa_init() + */ +static struct ipsec_alg *ipsec_alg_get(int alg_type, int alg_id) +{ + unsigned hashval=ipsec_alg_hashfn(alg_type, alg_id); + struct list_head *head= ipsec_alg_hash_table + hashval; + struct ipsec_alg *ixt; + + read_lock(&ipsec_alg_lock); + ixt=__ipsec_alg_find(alg_type, alg_id, head); + if (ixt) __ipsec_alg_usage_inc(ixt); + read_unlock(&ipsec_alg_lock); + + return ixt; +} + +static void ipsec_alg_put(struct ipsec_alg *ixt) { + __ipsec_alg_usage_dec((struct ipsec_alg *)ixt); +} + +/***************************************************************** + * + * INTERFACE for ENC services: key creation, encrypt function + * + *****************************************************************/ + +/* + * main encrypt service entry point + * called from ipsec_rcv() with encrypt=IPSEC_ALG_DECRYPT and + * ipsec_tunnel_start_xmit with encrypt=IPSEC_ALG_ENCRYPT + */ +int ipsec_alg_esp_encrypt(struct ipsec_sa *sa_p, __u8 * idat, + int ilen, const __u8 * iv, int encrypt) +{ + int ret; + struct ipsec_alg_enc *ixt_e=sa_p->ips_alg_enc; +#ifdef CONFIG_KLIPS_DEBUG + int debug_flag = (encrypt==IPSEC_ALG_ENCRYPT ? + debug_tunnel : debug_rcv); +#endif + + KLIPS_PRINT(debug_flag, + "klips_debug:ipsec_alg_esp_encrypt: " + "entering with encalg=%d, ixt_e=%p\n", + sa_p->ips_encalg, ixt_e); + if (ixt_e == NULL) { +#ifdef CONFIG_KLIPS_DEBUG + KLIPS_ERROR(debug_flag, + "klips_debug:ipsec_alg_esp_encrypt: " + "NULL ipsec_alg_enc object\n"); +#endif + return -1; + } + KLIPS_PRINT(debug_flag, + "klips_debug:ipsec_alg_esp_encrypt: " + "calling cbc_encrypt encalg=%d " + "ips_key_e=%p idat=%p ilen=%d iv=%p, encrypt=%d\n", + sa_p->ips_encalg, + sa_p->ips_key_e, idat, ilen, iv, encrypt); + ret=ixt_e->ixt_e_cbc_encrypt(ixt_e, sa_p->ips_key_e, idat, + ilen, iv, encrypt); + KLIPS_PRINT(debug_flag, + "klips_debug:ipsec_alg_esp_encrypt: " + "returned ret=%d\n", + ret); + return ret; +} + +/* + * encryption key context creation function + * called from pfkey_v2_parser.c:pfkey_ips_init() + */ +int ipsec_alg_enc_key_create(struct ipsec_sa *sa_p) { + int ret=-EINVAL; + int keyminbits, keymaxbits; + caddr_t ekp; + struct ipsec_alg_enc *ixt_e=sa_p->ips_alg_enc; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:ipsec_alg_enc_key_create: " + "entering with encalg=%d ixt_e=%p\n", + sa_p->ips_encalg, ixt_e); + if (!ixt_e) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:ipsec_alg_enc_key_create: " + "NULL ipsec_alg_enc object\n"); + return -EPROTO; + } + + /* + * grRRR... DES 7bits jurassic stuff ... f*ckk --jjo + */ + switch(ixt_e->ixt_common.ixt_support.ias_id) { + case ESP_3DES: + keyminbits=keymaxbits=192;break; + case ESP_DES: + keyminbits=keymaxbits=64;break; + default: + keyminbits=ixt_e->ixt_common.ixt_support.ias_keyminbits; + keymaxbits=ixt_e->ixt_common.ixt_support.ias_keymaxbits; + } + if(sa_p->ips_key_bits_eips_key_bits_e>keymaxbits) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:ipsec_alg_enc_key_create: " + "incorrect encryption key size for id=%d: %d bits -- " + "must be between %d,%d bits\n" /*octets (bytes)\n"*/, + ixt_e->ixt_common.ixt_support.ias_id, + sa_p->ips_key_bits_e, keyminbits, keymaxbits); + ret=-EINVAL; + goto ixt_out; + } + /* save encryption key pointer */ + ekp = sa_p->ips_key_e; + + + if (ixt_e->ixt_e_new_key) { + sa_p->ips_key_e = ixt_e->ixt_e_new_key(ixt_e, + ekp, sa_p->ips_key_bits_e/8); + ret = (sa_p->ips_key_e)? 0 : -EINVAL; + } else { + if((sa_p->ips_key_e = (caddr_t) + kmalloc((sa_p->ips_key_e_size = ixt_e->ixt_e_ctx_size), + GFP_ATOMIC)) == NULL) { + ret=-ENOMEM; + goto ixt_out; + } + /* zero-out key_e */ + memset(sa_p->ips_key_e, 0, sa_p->ips_key_e_size); + + /* I cast here to allow more decoupling in alg module */ + KLIPS_PRINT(debug_pfkey, + "klips_debug:ipsec_alg_enc_key_create: about to call:" + "set_key(key_e=%p, ekp=%p, key_size=%d)\n", + (caddr_t)sa_p->ips_key_e, ekp, sa_p->ips_key_bits_e/8); + ret = ixt_e->ixt_e_set_key(ixt_e, (caddr_t)sa_p->ips_key_e, ekp, sa_p->ips_key_bits_e/8); + } + /* paranoid */ + memset(ekp, 0, sa_p->ips_key_bits_e/8); + kfree(ekp); +ixt_out: + return ret; +} + +/*************************************************************** + * + * INTERFACE for AUTH services: key creation, hash functions + * + ***************************************************************/ + +/* + * auth key context creation function + * called from pfkey_v2_parser.c:pfkey_ips_init() + */ +int ipsec_alg_auth_key_create(struct ipsec_sa *sa_p) { + int ret=-EINVAL; + struct ipsec_alg_auth *ixt_a=sa_p->ips_alg_auth; + int keyminbits, keymaxbits; + unsigned char *akp; + unsigned int aks; + KLIPS_PRINT(debug_pfkey, + "klips_debug:ipsec_alg_auth_key_create: " + "entering with authalg=%d ixt_a=%p\n", + sa_p->ips_authalg, ixt_a); + if (!ixt_a) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:ipsec_alg_auth_key_create: " + "NULL ipsec_alg_auth object\n"); + return -EPROTO; + } + keyminbits=ixt_a->ixt_common.ixt_support.ias_keyminbits; + keymaxbits=ixt_a->ixt_common.ixt_support.ias_keymaxbits; + if(sa_p->ips_key_bits_aips_key_bits_a>keymaxbits) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:ipsec_alg_auth_key_create: incorrect auth" + "key size: %d bits -- must be between %d,%d bits\n"/*octets (bytes)\n"*/, + sa_p->ips_key_bits_a, keyminbits, keymaxbits); + ret=-EINVAL; + goto ixt_out; + } + /* save auth key pointer */ + sa_p->ips_auth_bits = ixt_a->ixt_a_keylen * 8; /* XXX XXX */ + akp = sa_p->ips_key_a; + aks = sa_p->ips_key_a_size; + + /* will hold: 2 ctx and a blocksize buffer: kb */ + sa_p->ips_key_a_size = ixt_a->ixt_a_ctx_size; + if((sa_p->ips_key_a = + (caddr_t) kmalloc(sa_p->ips_key_a_size, GFP_ATOMIC)) == NULL) { + ret=-ENOMEM; + goto ixt_out; + } + ixt_a->ixt_a_hmac_set_key(ixt_a, sa_p->ips_key_a, akp, sa_p->ips_key_bits_a/8); /* XXX XXX */ + ret=0; + memset(akp, 0, aks); + kfree(akp); + +ixt_out: + return ret; +} + + +int ipsec_alg_sa_esp_hash(const struct ipsec_sa *sa_p, const __u8 *espp, + int len, __u8 *hash, int hashlen) +{ + struct ipsec_alg_auth *ixt_a=sa_p->ips_alg_auth; + if (!ixt_a) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:ipsec_sa_esp_hash: " + "NULL ipsec_alg_auth object\n"); + return -EPROTO; + } + KLIPS_PRINT(debug_tunnel|debug_rcv, + "klips_debug:ipsec_sa_esp_hash: " + "hashing %p (%d bytes) to %p (%d bytes)\n", + espp, len, + hash, hashlen); + ixt_a->ixt_a_hmac_hash(ixt_a, + sa_p->ips_key_a, + espp, len, + hash, hashlen); + return 0; +} + +/*************************************************************** + * + * INTERFACE for module loading,testing, and unloading + * + ***************************************************************/ + +/* validation for registering (enc) module */ +static int check_enc(struct ipsec_alg_enc *ixt) +{ + int ret=-EINVAL; + if (ixt->ixt_common.ixt_blocksize==0) /* || ixt->ixt_common.ixt_blocksize%2) need for ESP_NULL */ + barf_out(KERN_ERR "invalid blocksize=%d\n", ixt->ixt_common.ixt_blocksize); + if (ixt->ixt_common.ixt_support.ias_keyminbits==0 + && ixt->ixt_common.ixt_support.ias_keymaxbits==0 + && ixt->ixt_e_keylen==0) + goto zero_key_ok; + + if (ixt->ixt_common.ixt_support.ias_keyminbits==0) + barf_out(KERN_ERR "invalid keyminbits=%d\n", ixt->ixt_common.ixt_support.ias_keyminbits); + + if (ixt->ixt_common.ixt_support.ias_keymaxbits==0) + barf_out(KERN_ERR "invalid keymaxbits=%d\n", ixt->ixt_common.ixt_support.ias_keymaxbits); + + if (ixt->ixt_e_keylen==0) + barf_out(KERN_ERR "invalid keysize=%d\n", ixt->ixt_e_keylen); + +zero_key_ok: + if (ixt->ixt_e_ctx_size==0 && ixt->ixt_e_new_key == NULL) + barf_out(KERN_ERR "invalid key_e_size=%d and ixt_e_new_key=NULL\n", ixt->ixt_e_ctx_size); + if (ixt->ixt_e_cbc_encrypt==NULL) + barf_out(KERN_ERR "e_cbc_encrypt() must be not NULL\n"); + ret=0; +out: + return ret; +} + +/* validation for registering (auth) module */ +static int check_auth(struct ipsec_alg_auth *ixt) +{ + int ret=-EINVAL; + if (ixt->ixt_common.ixt_support.ias_id==0 || ixt->ixt_common.ixt_support.ias_id > SADB_AALG_MAX) + barf_out("invalid alg_id=%d > %d (SADB_AALG_MAX)\n", + ixt->ixt_common.ixt_support.ias_id, SADB_AALG_MAX); + + if (ixt->ixt_common.ixt_blocksize==0 + || ixt->ixt_common.ixt_blocksize%2) + barf_out(KERN_ERR "invalid blocksize=%d\n", + ixt->ixt_common.ixt_blocksize); + + if (ixt->ixt_common.ixt_blocksize>AH_BLKLEN_MAX) + barf_out(KERN_ERR "sorry blocksize=%d > %d. " + "Please increase AH_BLKLEN_MAX and recompile\n", + ixt->ixt_common.ixt_blocksize, + AH_BLKLEN_MAX); + if (ixt->ixt_common.ixt_support.ias_keyminbits==0 && ixt->ixt_common.ixt_support.ias_keymaxbits==0 && ixt->ixt_a_keylen==0) + goto zero_key_ok; + if (ixt->ixt_common.ixt_support.ias_keyminbits==0) + barf_out(KERN_ERR "invalid keyminbits=%d\n", ixt->ixt_common.ixt_support.ias_keyminbits); + if (ixt->ixt_common.ixt_support.ias_keymaxbits==0) + barf_out(KERN_ERR "invalid keymaxbits=%d\n", ixt->ixt_common.ixt_support.ias_keymaxbits); + if (ixt->ixt_common.ixt_support.ias_keymaxbits!=ixt->ixt_common.ixt_support.ias_keyminbits) + barf_out(KERN_ERR "keymaxbits must equal keyminbits (not sure).\n"); + if (ixt->ixt_a_keylen==0) + barf_out(KERN_ERR "invalid keysize=%d\n", ixt->ixt_a_keylen); +zero_key_ok: + if (ixt->ixt_a_ctx_size==0) + barf_out(KERN_ERR "invalid a_ctx_size=%d\n", ixt->ixt_a_ctx_size); + if (ixt->ixt_a_hmac_set_key==NULL) + barf_out(KERN_ERR "a_hmac_set_key() must be not NULL\n"); + if (ixt->ixt_a_hmac_hash==NULL) + barf_out(KERN_ERR "a_hmac_hash() must be not NULL\n"); + ret=0; +out: + return ret; +} + +/* + * Generic (enc, auth) registration entry point + */ +int register_ipsec_alg(struct ipsec_alg *ixt) +{ + int ret=-EINVAL; + /* Validation */ + if (ixt==NULL) + barf_out("NULL ipsec_alg object passed\n"); + if ((ixt->ixt_version&0xffffff00) != (IPSEC_ALG_VERSION&0xffffff00)) + barf_out("incorrect version: %d.%d.%d-%d, " + "must be %d.%d.%d[-%d]\n", + IPSEC_ALG_VERSION_QUAD(ixt->ixt_version), + IPSEC_ALG_VERSION_QUAD(IPSEC_ALG_VERSION)); + + switch(ixt->ixt_alg_type) { + case IPSEC_ALG_TYPE_AUTH: + if ((ret=check_auth((struct ipsec_alg_auth *)ixt)<0)) + goto out; + break; + case IPSEC_ALG_TYPE_ENCRYPT: + if ((ret=check_enc((struct ipsec_alg_enc *)ixt)<0)) + goto out; + /* + * Adapted two lines below: + * ivlen == 0 is possible (NULL enc has blocksize==1) + * + * fixed NULL support by David De Reu + */ + if (ixt->ixt_support.ias_ivlen == 0 + && ixt->ixt_blocksize > 1) { + ixt->ixt_support.ias_ivlen = ixt->ixt_blocksize*8; + } + break; + default: + barf_out("alg_type=%d not supported\n", ixt->ixt_alg_type); + } + INIT_LIST_HEAD(&ixt->ixt_list); + ret = ipsec_alg_insert(ixt); + if (ret<0) + barf_out(KERN_WARNING "ipsec_alg for alg_id=%d failed." + "Not loaded (ret=%d).\n", + ixt->ixt_support.ias_id, ret); + + + ret = pfkey_list_insert_supported((struct ipsec_alg_supported *)&ixt->ixt_support + , &(pfkey_supported_list[SADB_SATYPE_ESP])); + + if (ret==0) { + ixt->ixt_state |= IPSEC_ALG_ST_SUPP; + /* send register event to userspace */ + pfkey_register_reply(SADB_SATYPE_ESP, NULL); + } else + printk(KERN_ERR "pfkey_list_insert_supported returned %d. " + "Loading anyway.\n", ret); + ret=0; +out: + return ret; +} + +/* + * unregister ipsec_alg object from own tables, if + * success => calls pfkey_list_remove_supported() + */ +int unregister_ipsec_alg(struct ipsec_alg *ixt) { + int ret= -EINVAL; + switch(ixt->ixt_alg_type) { + case IPSEC_ALG_TYPE_AUTH: + case IPSEC_ALG_TYPE_ENCRYPT: + break; + default: + /* this is not a typo :) */ + barf_out("frog found in list (\"%s\"): ixt_p=NULL\n", + ixt->ixt_name); + } + + ret=ipsec_alg_delete(ixt); + if (ixt->ixt_state&IPSEC_ALG_ST_SUPP) { + ixt->ixt_state &= ~IPSEC_ALG_ST_SUPP; + pfkey_list_remove_supported((struct ipsec_alg_supported *)&ixt->ixt_support + , &(pfkey_supported_list[SADB_SATYPE_ESP])); + + /* send register event to userspace */ + pfkey_register_reply(SADB_SATYPE_ESP, NULL); + } + +out: + return ret; +} + +/* + * Must be called from user context + * used at module load type for testing algo implementation + */ +static int ipsec_alg_test_encrypt(int enc_alg, int test) { + int ret; + caddr_t buf = NULL; + int iv_size, keysize, key_e_size; + struct ipsec_alg_enc *ixt_e; + void *tmp_key_e = NULL; + #define BUFSZ 1024 + #define MARGIN 0 + #define test_enc (buf+MARGIN) + #define test_dec (test_enc+BUFSZ+MARGIN) + #define test_tmp (test_dec+BUFSZ+MARGIN) + #define test_key_e (test_tmp+BUFSZ+MARGIN) + #define test_iv (test_key_e+key_e_size+MARGIN) + #define test_key (test_iv+iv_size+MARGIN) + #define test_size (BUFSZ*3+key_e_size+iv_size+keysize+MARGIN*7) + ixt_e=(struct ipsec_alg_enc *)ipsec_alg_get(IPSEC_ALG_TYPE_ENCRYPT, enc_alg); + if (ixt_e==NULL) { + KLIPS_PRINT(1, + "klips_debug: ipsec_alg_test_encrypt: " + "encalg=%d object not found\n", + enc_alg); + ret=-EINVAL; + goto out; + } + iv_size=ixt_e->ixt_common.ixt_support.ias_ivlen / 8; + key_e_size=ixt_e->ixt_e_ctx_size; + keysize=ixt_e->ixt_e_keylen; + KLIPS_PRINT(1, + "klips_debug: ipsec_alg_test_encrypt: " + "enc_alg=%d blocksize=%d key_e_size=%d keysize=%d\n", + enc_alg, iv_size, key_e_size, keysize); + if ((buf=kmalloc (test_size, GFP_KERNEL)) == NULL) { + ret= -ENOMEM; + goto out; + } + get_random_bytes(test_key, keysize); + get_random_bytes(test_iv, iv_size); + if (ixt_e->ixt_e_new_key) { + tmp_key_e = ixt_e->ixt_e_new_key(ixt_e, test_key, keysize); + ret = tmp_key_e ? 0 : -EINVAL; + } else { + tmp_key_e = test_key_e; + ret = ixt_e->ixt_e_set_key(ixt_e, test_key_e, test_key, keysize); + } + if (ret < 0) + goto out; + get_random_bytes(test_enc, BUFSZ); + memcpy(test_tmp, test_enc, BUFSZ); + ret=ixt_e->ixt_e_cbc_encrypt(ixt_e, tmp_key_e, test_enc, BUFSZ, test_iv, 1); + printk(KERN_INFO + "klips_info: ipsec_alg_test_encrypt: " + "cbc_encrypt=1 ret=%d\n", + ret); + ret=memcmp(test_enc, test_tmp, BUFSZ); + printk(KERN_INFO + "klips_info: ipsec_alg_test_encrypt: " + "memcmp(enc, tmp) ret=%d: %s\n", ret, + ret!=0? "OK. (encr->DIFFers)" : "FAIL! (encr->SAME)" ); + memcpy(test_dec, test_enc, BUFSZ); + ret=ixt_e->ixt_e_cbc_encrypt(ixt_e, tmp_key_e, test_dec, BUFSZ, test_iv, 0); + printk(KERN_INFO + "klips_info: ipsec_alg_test_encrypt: " + "cbc_encrypt=0 ret=%d\n", ret); + ret=memcmp(test_dec, test_tmp, BUFSZ); + printk(KERN_INFO + "klips_info: ipsec_alg_test_encrypt: " + "memcmp(dec,tmp) ret=%d: %s\n", ret, + ret==0? "OK. (encr->decr->SAME)" : "FAIL! (encr->decr->DIFFers)" ); + { + /* Shamelessly taken from drivers/md sources O:) */ + unsigned long now; + int i, count, max=0; + int encrypt, speed; + for (encrypt=0; encrypt <2;encrypt ++) { + for (i = 0; i < 5; i++) { + now = jiffies; + count = 0; + while (jiffies == now) { + mb(); + ixt_e->ixt_e_cbc_encrypt(ixt_e, + tmp_key_e, test_tmp, + BUFSZ, test_iv, encrypt); + mb(); + count++; + mb(); + } + if (count > max) + max = count; + } + speed = max * (HZ * BUFSZ / 1024); + printk(KERN_INFO + "klips_info: ipsec_alg_test_encrypt: " + "%s %s speed=%d KB/s\n", + ixt_e->ixt_common.ixt_name, + encrypt? "encrypt": "decrypt", speed); + } + } +out: + if (tmp_key_e && ixt_e->ixt_e_destroy_key) ixt_e->ixt_e_destroy_key(ixt_e, tmp_key_e); + if (buf) kfree(buf); + if (ixt_e) ipsec_alg_put((struct ipsec_alg *)ixt_e); + return ret; + #undef test_enc + #undef test_dec + #undef test_tmp + #undef test_key_e + #undef test_iv + #undef test_key + #undef test_size +} + +/* + * Must be called from user context + * used at module load type for testing algo implementation + */ +static int ipsec_alg_test_auth(int auth_alg, int test) { + int ret; + caddr_t buf = NULL; + int blocksize, keysize, key_a_size; + struct ipsec_alg_auth *ixt_a; + #define BUFSZ 1024 + #define MARGIN 0 + #define test_auth (buf+MARGIN) + #define test_key_a (test_auth+BUFSZ+MARGIN) + #define test_key (test_key_a+key_a_size+MARGIN) + #define test_hash (test_key+keysize+MARGIN) + #define test_size (BUFSZ+key_a_size+keysize+AHHMAC_HASHLEN+MARGIN*4) + ixt_a=(struct ipsec_alg_auth *)ipsec_alg_get(IPSEC_ALG_TYPE_AUTH, auth_alg); + if (ixt_a==NULL) { + KLIPS_PRINT(1, + "klips_debug: ipsec_alg_test_auth: " + "encalg=%d object not found\n", + auth_alg); + ret=-EINVAL; + goto out; + } + blocksize=ixt_a->ixt_common.ixt_blocksize; + key_a_size=ixt_a->ixt_a_ctx_size; + keysize=ixt_a->ixt_a_keylen; + KLIPS_PRINT(1, + "klips_debug: ipsec_alg_test_auth: " + "auth_alg=%d blocksize=%d key_a_size=%d keysize=%d\n", + auth_alg, blocksize, key_a_size, keysize); + if ((buf=kmalloc (test_size, GFP_KERNEL)) == NULL) { + ret= -ENOMEM; + goto out; + } + get_random_bytes(test_key, keysize); + ret = ixt_a->ixt_a_hmac_set_key(ixt_a, test_key_a, test_key, keysize); + if (ret < 0 ) + goto out; + get_random_bytes(test_auth, BUFSZ); + ret=ixt_a->ixt_a_hmac_hash(ixt_a, test_key_a, test_auth, BUFSZ, test_hash, AHHMAC_HASHLEN); + printk(KERN_INFO + "klips_info: ipsec_alg_test_auth: " + "ret=%d\n", ret); + { + /* Shamelessly taken from drivers/md sources O:) */ + unsigned long now; + int i, count, max=0; + int speed; + for (i = 0; i < 5; i++) { + now = jiffies; + count = 0; + while (jiffies == now) { + mb(); + ixt_a->ixt_a_hmac_hash(ixt_a, test_key_a, test_auth, BUFSZ, test_hash, AHHMAC_HASHLEN); + mb(); + count++; + mb(); + } + if (count > max) + max = count; + } + speed = max * (HZ * BUFSZ / 1024); + printk(KERN_INFO + "klips_info: ipsec_alg_test_auth: " + "%s hash speed=%d KB/s\n", + ixt_a->ixt_common.ixt_name, + speed); + } +out: + if (buf) kfree(buf); + if (ixt_a) ipsec_alg_put((struct ipsec_alg *)ixt_a); + return ret; + #undef test_auth + #undef test_key_a + #undef test_key + #undef test_hash + #undef test_size +} + +int ipsec_alg_test(unsigned alg_type, unsigned alg_id, int test) { + switch(alg_type) { + case IPSEC_ALG_TYPE_ENCRYPT: + return ipsec_alg_test_encrypt(alg_id, test); + break; + case IPSEC_ALG_TYPE_AUTH: + return ipsec_alg_test_auth(alg_id, test); + break; + } + printk(KERN_ERR "klips_info: ipsec_alg_test() called incorrectly: " + "alg_type=%d alg_id=%d\n", + alg_type, alg_id); + return -EINVAL; +} + +int ipsec_alg_init(void) { + KLIPS_PRINT(1, "klips_info:ipsec_alg_init: " + "KLIPS alg v=%d.%d.%d-%d (EALG_MAX=%d, AALG_MAX=%d)\n", + IPSEC_ALG_VERSION_QUAD(IPSEC_ALG_VERSION), + SADB_EALG_MAX, SADB_AALG_MAX); + /* Initialize tables */ + write_lock_bh(&ipsec_alg_lock); + ipsec_alg_hash_init(); + write_unlock_bh(&ipsec_alg_lock); + + /* Initialize static algos */ + KLIPS_PRINT(1, "klips_info:ipsec_alg_init: " + "calling ipsec_alg_static_init()\n"); + + /* If we are suppose to use our AES, and don't have + * CryptoAPI enabled... + */ +#if defined(CONFIG_KLIPS_ENC_AES) && CONFIG_KLIPS_ENC_AES && !defined(CONFIG_KLIPS_ENC_AES_MODULE) +#if defined(CONFIG_KLIPS_ENC_CRYPTOAPI) && CONFIG_KLIPS_ENC_CRYPTOAPI +#warning "Using built-in AES rather than CryptoAPI AES" +#endif + { + extern int ipsec_aes_init(void); + ipsec_aes_init(); + } +#endif + +#if defined(CONFIG_KLIPS_ENC_3DES) && CONFIG_KLIPS_ENC_3DES && !defined(CONFIG_KLIPS_ENC_3DES_MODULE) +#if defined(CONFIG_KLIPS_ENC_CRYPTOAPI) && CONFIG_KLIPS_ENC_CRYPTOAPI +#warning "Using built-in 3des rather than CryptoAPI 3des" +#endif + { + extern int ipsec_3des_init(void); + ipsec_3des_init(); + } +#endif +#if defined(CONFIG_KLIPS_ENC_NULL) && CONFIG_KLIPS_ENC_NULL && !defined(CONFIG_KLIPS_ENC_NULL_MODULE) +#if defined(CONFIG_KLIPS_ENC_CRYPTOAPI) && CONFIG_KLIPS_ENC_CRYPTOAPI +#warning "Using built-in null cipher rather than CryptoAPI null cipher" +#endif +#warning "Building with null cipher (ESP_NULL), blame on you :-)" + { + extern int ipsec_null_init(void); + ipsec_null_init(); + } +#endif + + + /* If we are doing CryptoAPI, then init */ +#if defined(CONFIG_KLIPS_ENC_CRYPTOAPI) && CONFIG_KLIPS_ENC_CRYPTOAPI && !defined(CONFIG_KLIPS_ENC_CRYPTOAPI_MODULE) + { + extern int ipsec_cryptoapi_init(void); + ipsec_cryptoapi_init(); + } +#endif + + + return 0; +} + +/********************************************** + * + * INTERFACE for ipsec_sa init and wipe + * + **********************************************/ + +/* + * Called from pluto -> pfkey_v2_parser.c:pfkey_ipsec_sa_init() + */ +int ipsec_alg_sa_init(struct ipsec_sa *sa_p) { + struct ipsec_alg_enc *ixt_e; + struct ipsec_alg_auth *ixt_a; + + /* Only ESP for now ... */ + if (sa_p->ips_said.proto != IPPROTO_ESP) + return -EPROTONOSUPPORT; + + KLIPS_PRINT(debug_pfkey, "klips_debug: ipsec_alg_sa_init() :" + "entering for encalg=%d, authalg=%d\n", + sa_p->ips_encalg, sa_p->ips_authalg); + + if ((ixt_e=(struct ipsec_alg_enc *) + ipsec_alg_get(IPSEC_ALG_TYPE_ENCRYPT, sa_p->ips_encalg))) { + KLIPS_PRINT(debug_pfkey, + "klips_debug: ipsec_alg_sa_init() :" + "found ipsec_alg (ixt_e=%p) for encalg=%d\n", + ixt_e, sa_p->ips_encalg); + sa_p->ips_alg_enc=ixt_e; + } + + if ((ixt_a=(struct ipsec_alg_auth *) + ipsec_alg_get(IPSEC_ALG_TYPE_AUTH, sa_p->ips_authalg))) { + KLIPS_PRINT(debug_pfkey, + "klips_debug: ipsec_alg_sa_init() :" + "found ipsec_alg (ixt_a=%p) for auth=%d\n", + ixt_a, sa_p->ips_authalg); + sa_p->ips_alg_auth=ixt_a; + } + return 0; +} + +/* + * Called from pluto -> ipsec_sa.c:ipsec_sa_delchain() + */ +int ipsec_alg_sa_wipe(struct ipsec_sa *sa_p) { + struct ipsec_alg *ixt; + if ((ixt=(struct ipsec_alg *)sa_p->ips_alg_enc)) { + KLIPS_PRINT(debug_pfkey, "klips_debug: ipsec_alg_sa_wipe() :" + "unlinking for encalg=%d\n", + ixt->ixt_support.ias_id); + ipsec_alg_put(ixt); + } + if ((ixt=(struct ipsec_alg *)sa_p->ips_alg_auth)) { + KLIPS_PRINT(debug_pfkey, "klips_debug: ipsec_alg_sa_wipe() :" + "unlinking for authalg=%d\n", + ixt->ixt_support.ias_id); + ipsec_alg_put(ixt); + } + return 0; +} + +IPSEC_PROCFS_DEBUG_NO_STATIC +int +ipsec_xform_get_info(char *buffer, + char **start, + off_t offset, + int length IPSEC_PROC_LAST_ARG) +{ + int len = 0; + off_t begin = 0; + int i; + struct list_head *head; + struct ipsec_alg *ixt; + + KLIPS_PRINT(debug_tunnel & DB_TN_PROCFS, + "klips_debug:ipsec_tncfg_get_info: " + "buffer=0p%p, *start=0p%p, offset=%d, length=%d\n", + buffer, + *start, + (int)offset, + length); + + for(i = 0, head = ipsec_alg_hash_table; + inext; p!=head; p=p->next) + { + ixt = list_entry(p, struct ipsec_alg, ixt_list); + len += ipsec_snprintf(buffer+len, length-len, + "VERSION=%d TYPE=%d ID=%d NAME=%s REFCNT=%d ", + ixt->ixt_version, ixt->ixt_alg_type, ixt->ixt_support.ias_id, + ixt->ixt_name, ixt->ixt_refcnt); + + len += ipsec_snprintf(buffer+len, length-len, + "STATE=%08x BLOCKSIZE=%d IVLEN=%d KEYMINBITS=%d KEYMAXBITS=%d ", + ixt->ixt_state, ixt->ixt_blocksize, + ixt->ixt_support.ias_ivlen, ixt->ixt_support.ias_keyminbits, ixt->ixt_support.ias_keymaxbits); + + len += ipsec_snprintf(buffer+len, length-len, + "IVLEN=%d KEYMINBITS=%d KEYMAXBITS=%d ", + ixt->ixt_support.ias_ivlen, ixt->ixt_support.ias_keyminbits, ixt->ixt_support.ias_keymaxbits); + + switch(ixt->ixt_alg_type) + { + case IPSEC_ALG_TYPE_AUTH: + { + struct ipsec_alg_auth *auth = (struct ipsec_alg_auth *)ixt; + + len += ipsec_snprintf(buffer+len, length-len, + "KEYLEN=%d CTXSIZE=%d AUTHLEN=%d ", + auth->ixt_a_keylen, auth->ixt_a_ctx_size, + auth->ixt_a_authlen); + break; + } + case IPSEC_ALG_TYPE_ENCRYPT: + { + struct ipsec_alg_enc *enc = (struct ipsec_alg_enc *)ixt; + len += ipsec_snprintf(buffer+len, length-len, + "KEYLEN=%d CTXSIZE=%d ", + enc->ixt_e_keylen, enc->ixt_e_ctx_size); + + break; + } + } + + len += ipsec_snprintf(buffer+len, length-len, "\n"); + } + } + + *start = buffer + (offset - begin); /* Start of wanted data */ + len -= (offset - begin); /* Start slop */ + if (len > length) + len = length; + return len; +} + + +/* + * As the author of this module, I ONLY ALLOW using it from + * GPL (or same LICENSE TERMS as kernel source) modules. + * + * In respect to hardware crypto engines this means: + * * Closed-source device drivers ARE NOT ALLOWED to use + * this interface. + * * Closed-source VHDL/Verilog firmware running on + * the crypto hardware device IS ALLOWED to use this interface + * via a GPL (or same LICENSE TERMS as kernel source) device driver. + * --Juan Jose Ciarlante 20/03/2002 (thanks RGB for the correct wording) + */ + +/* + * These symbols can only be used from GPL modules + * for now, I'm disabling this because it creates false + * symbol problems for old modutils. + */ + +#ifdef CONFIG_MODULES +#ifndef NET_26 +#if 0 +#ifndef EXPORT_SYMBOL_GPL +#undef EXPORT_SYMBOL_GPL +#define EXPORT_SYMBOL_GPL EXPORT_SYMBOL +#endif +#endif +EXPORT_SYMBOL(register_ipsec_alg); +EXPORT_SYMBOL(unregister_ipsec_alg); +EXPORT_SYMBOL(ipsec_alg_test); +#endif +#endif --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ipsec_alg_cryptoapi.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,455 @@ +/* + * ipsec_alg to linux cryptoapi GLUE + * + * Authors: CODE.ar TEAM + * Harpo MAxx + * JuanJo Ciarlante + * Luciano Ruete + * + * ipsec_alg_cryptoapi.c,v 1.1.2.1 2003/11/21 18:12:23 jjo Exp + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * Example usage: + * modinfo -p ipsec_cryptoapi (quite useful info, including supported algos) + * modprobe ipsec_cryptoapi + * modprobe ipsec_cryptoapi test=1 + * modprobe ipsec_cryptoapi excl=1 (exclusive cipher/algo) + * modprobe ipsec_cryptoapi noauto=1 aes=1 twofish=1 (only these ciphers) + * modprobe ipsec_cryptoapi aes=128,128 (force these keylens) + * modprobe ipsec_cryptoapi des_ede3=0 (everything but 3DES) + */ +#ifndef AUTOCONF_INCLUDED +#include +#endif +#include + +/* + * special case: ipsec core modular with this static algo inside: + * must avoid MODULE magic for this file + */ +#if defined(CONFIG_KLIPS_MODULE) && defined(CONFIG_KLIPS_ENC_CRYPTOAPI) +#undef MODULE +#endif + +#include +#include + +#include /* printk() */ +#include /* error codes */ +#include /* size_t */ +#include + +/* Check if __exit is defined, if not null it */ +#ifndef __exit +#define __exit +#endif + +/* warn the innocent */ +#if !defined (CONFIG_CRYPTO) && !defined (CONFIG_CRYPTO_MODULE) +#warning "No linux CryptoAPI found, install 2.4.22+ or 2.6.x" +#define NO_CRYPTOAPI_SUPPORT +#endif + +#include "openswan.h" +#include "openswan/ipsec_alg.h" +#include "openswan/ipsec_policy.h" + +#include +#ifdef CRYPTO_API_VERSION_CODE +#warning "Old CryptoAPI is not supported. Only linux-2.4.22+ or linux-2.6.x are supported" +#define NO_CRYPTOAPI_SUPPORT +#endif + +#ifdef NO_CRYPTOAPI_SUPPORT +#warning "Building an unusable module :P" +/* Catch old CryptoAPI by not allowing module to load */ +IPSEC_ALG_MODULE_INIT_STATIC( ipsec_cryptoapi_init ) +{ + printk(KERN_WARNING "ipsec_cryptoapi.o was not built on stock Linux CryptoAPI (2.4.22+ or 2.6.x), not loading.\n"); + return -EINVAL; +} +#else +#include +#include +#include + +#define CIPHERNAME_AES "aes" +#define CIPHERNAME_1DES "des" +#define CIPHERNAME_3DES "des3_ede" +#define CIPHERNAME_BLOWFISH "blowfish" +#define CIPHERNAME_CAST "cast5" +#define CIPHERNAME_SERPENT "serpent" +#define CIPHERNAME_TWOFISH "twofish" + +#define ESP_SERPENT 252 /* from ipsec drafts */ +#define ESP_TWOFISH 253 /* from ipsec drafts */ + +#define DIGESTNAME_MD5 "md5" +#define DIGESTNAME_SHA1 "sha1" + +MODULE_AUTHOR("Juanjo Ciarlante, Harpo MAxx, Luciano Ruete"); +static int debug_crypto=0; +static int test_crypto=0; +static int excl_crypto=0; + +static int noauto = 0; + +#ifdef module_param +module_param(debug_crypto,int,0600) +module_param(test_crypto,int,0600) +module_param(excl_crypto,int,0600) + +module_param(noauto,int,0600) +#else +MODULE_PARM(debug_crypto, "i"); +MODULE_PARM(test_crypto, "i"); +MODULE_PARM(excl_crypto, "i"); + +MODULE_PARM(noauto,"i"); +#endif +MODULE_PARM_DESC(noauto, "Dont try all known algos, just setup enabled ones"); + +#ifdef CONFIG_KLIPS_ENC_1DES +static int des_ede1[] = {-1, -1}; +#endif +static int des_ede3[] = {-1, -1}; +static int aes[] = {-1, -1}; +static int blowfish[] = {-1, -1}; +static int cast[] = {-1, -1}; +static int serpent[] = {-1, -1}; +static int twofish[] = {-1, -1}; + +#ifdef CONFIG_KLIPS_ENC_1DES +#ifdef module_param +module_param_array(des_ede1,int,NULL,0) +#else +MODULE_PARM(des_ede1,"1-2i"); +#endif +#endif +#ifdef module_param +module_param_array(des_ede3,int,NULL,0) +module_param_array(aes,int,NULL,0) +module_param_array(blowfish,int,NULL,0) +module_param_array(cast,int,NULL,0) +module_param_array(serpent,int,NULL,0) +module_param_array(twofish,int,NULL,0) +#else +MODULE_PARM(des_ede3,"1-2i"); +MODULE_PARM(aes,"1-2i"); +MODULE_PARM(blowfish,"1-2i"); +MODULE_PARM(cast,"1-2i"); +MODULE_PARM(serpent,"1-2i"); +MODULE_PARM(twofish,"1-2i"); +#endif +MODULE_PARM_DESC(des_ede1, "0: disable | 1: force_enable | min,max: dontuse"); +MODULE_PARM_DESC(des_ede3, "0: disable | 1: force_enable | min,max: dontuse"); +MODULE_PARM_DESC(aes, "0: disable | 1: force_enable | min,max: keybitlens"); +MODULE_PARM_DESC(blowfish, "0: disable | 1: force_enable | min,max: keybitlens"); +MODULE_PARM_DESC(cast, "0: disable | 1: force_enable | min,max: keybitlens"); +MODULE_PARM_DESC(serpent, "0: disable | 1: force_enable | min,max: keybitlens"); +MODULE_PARM_DESC(twofish, "0: disable | 1: force_enable | min,max: keybitlens"); + +struct ipsec_alg_capi_cipher { + const char *ciphername; /* cryptoapi's ciphername */ + unsigned blocksize; + unsigned short minbits; + unsigned short maxbits; + int *parm; /* lkm param for this cipher */ + struct ipsec_alg_enc alg; /* note it's not a pointer */ +}; + +static struct ipsec_alg_capi_cipher alg_capi_carray[] = { + { CIPHERNAME_AES, 16, 128, 256, aes, { ixt_common:{ ixt_support:{ ias_id: ESP_AES}}}}, + { CIPHERNAME_TWOFISH, 16, 128, 256, twofish, { ixt_common:{ ixt_support:{ ias_id: ESP_TWOFISH,}}}}, + { CIPHERNAME_SERPENT, 16, 128, 256, serpent, { ixt_common:{ ixt_support:{ ias_id: ESP_SERPENT,}}}}, + { CIPHERNAME_CAST, 8, 128, 128, cast , { ixt_common:{ ixt_support:{ ias_id: ESP_CAST,}}}}, + { CIPHERNAME_BLOWFISH, 8, 96, 448, blowfish, { ixt_common:{ ixt_support:{ ias_id: ESP_BLOWFISH,}}}}, + { CIPHERNAME_3DES, 8, 192, 192, des_ede3, { ixt_common:{ ixt_support:{ ias_id: ESP_3DES,}}}}, +#ifdef CONFIG_KLIPS_ENC_1DES + { CIPHERNAME_1DES, 8, 64, 64, des_ede1, { ixt_common:{ ixt_support:{ ias_id: ESP_DES,}}}}, +#endif + { NULL, 0, 0, 0, NULL, {} } +}; + +#ifdef NOT_YET +struct ipsec_alg_capi_digest { + const char *digestname; /* cryptoapi's digestname */ + struct digest_implementation *di; + struct ipsec_alg_auth alg; /* note it's not a pointer */ +}; +static struct ipsec_alg_capi_cipher alg_capi_darray[] = { + { DIGESTNAME_MD5, NULL, { ixt_alg_id: AH_MD5, }}, + { DIGESTNAME_SHA1, NULL, { ixt_alg_id: AH_SHA, }}, + { NULL, NULL, {} } +}; +#endif +/* + * "generic" linux cryptoapi setup_cipher() function + */ +int setup_cipher(const char *ciphername) +{ + return crypto_alg_available(ciphername, 0); +} + +/* + * setups ipsec_alg_capi_cipher "hyper" struct components, calling + * register_ipsec_alg for cointaned ipsec_alg object + */ +static void _capi_destroy_key (struct ipsec_alg_enc *alg, __u8 *key_e); +static __u8 * _capi_new_key (struct ipsec_alg_enc *alg, const __u8 *key, size_t keylen); +static int _capi_cbc_encrypt(struct ipsec_alg_enc *alg, __u8 * key_e, __u8 * in, int ilen, const __u8 * iv, int encrypt); + +static int +setup_ipsec_alg_capi_cipher(struct ipsec_alg_capi_cipher *cptr) +{ + int ret; + cptr->alg.ixt_common.ixt_version = IPSEC_ALG_VERSION; + cptr->alg.ixt_common.ixt_module = THIS_MODULE; + atomic_set (& cptr->alg.ixt_common.ixt_refcnt, 0); + strncpy (cptr->alg.ixt_common.ixt_name , cptr->ciphername, sizeof (cptr->alg.ixt_common.ixt_name)); + + cptr->alg.ixt_common.ixt_blocksize=cptr->blocksize; + cptr->alg.ixt_common.ixt_support.ias_keyminbits=cptr->minbits; + cptr->alg.ixt_common.ixt_support.ias_keymaxbits=cptr->maxbits; + cptr->alg.ixt_common.ixt_state = 0; + if (excl_crypto) cptr->alg.ixt_common.ixt_state |= IPSEC_ALG_ST_EXCL; + cptr->alg.ixt_e_keylen=cptr->alg.ixt_common.ixt_support.ias_keymaxbits/8; + cptr->alg.ixt_e_ctx_size = 0; + cptr->alg.ixt_common.ixt_support.ias_exttype = IPSEC_ALG_TYPE_ENCRYPT; + cptr->alg.ixt_e_new_key = _capi_new_key; + cptr->alg.ixt_e_destroy_key = _capi_destroy_key; + cptr->alg.ixt_e_cbc_encrypt = _capi_cbc_encrypt; + cptr->alg.ixt_common.ixt_data = cptr; + + ret=register_ipsec_alg_enc(&cptr->alg); + printk(KERN_INFO "KLIPS cryptoapi interface: " + "alg_type=%d alg_id=%d name=%s " + "keyminbits=%d keymaxbits=%d, %s(%d)\n", + cptr->alg.ixt_common.ixt_support.ias_exttype, + cptr->alg.ixt_common.ixt_support.ias_id, + cptr->alg.ixt_common.ixt_name, + cptr->alg.ixt_common.ixt_support.ias_keyminbits, + cptr->alg.ixt_common.ixt_support.ias_keymaxbits, + ret ? "not found" : "found", ret); + return ret; +} +/* + * called in ipsec_sa_wipe() time, will destroy key contexts + * and do 1 unbind() + */ +static void +_capi_destroy_key (struct ipsec_alg_enc *alg, __u8 *key_e) +{ + struct crypto_tfm *tfm=(struct crypto_tfm*)key_e; + + if (debug_crypto > 0) + printk(KERN_DEBUG "klips_debug: _capi_destroy_key:" + "name=%s key_e=%p \n", + alg->ixt_common.ixt_name, key_e); + if (!key_e) { + printk(KERN_ERR "klips_debug: _capi_destroy_key:" + "name=%s NULL key_e!\n", + alg->ixt_common.ixt_name); + return; + } + crypto_free_tfm(tfm); +} + +/* + * create new key context, need alg->ixt_data to know which + * (of many) cipher inside this module is the target + */ +static __u8 * +_capi_new_key (struct ipsec_alg_enc *alg, const __u8 *key, size_t keylen) +{ + struct ipsec_alg_capi_cipher *cptr; + struct crypto_tfm *tfm=NULL; + + cptr = alg->ixt_common.ixt_data; + if (!cptr) { + printk(KERN_ERR "_capi_new_key(): " + "NULL ixt_data (?!) for \"%s\" algo\n" + , alg->ixt_common.ixt_name); + goto err; + } + if (debug_crypto > 0) + printk(KERN_DEBUG "klips_debug:_capi_new_key:" + "name=%s cptr=%p key=%p keysize=%d\n", + alg->ixt_common.ixt_name, cptr, key, keylen); + + /* + * alloc tfm + */ + tfm = crypto_alloc_tfm(cptr->ciphername, CRYPTO_TFM_MODE_CBC); + if (!tfm) { + printk(KERN_ERR "_capi_new_key(): " + "NULL tfm for \"%s\" cryptoapi (\"%s\") algo\n" + , alg->ixt_common.ixt_name, cptr->ciphername); + goto err; + } + if (crypto_cipher_setkey(tfm, key, keylen) < 0) { + printk(KERN_ERR "_capi_new_key(): " + "failed new_key() for \"%s\" cryptoapi algo (keylen=%d)\n" + , alg->ixt_common.ixt_name, keylen); + crypto_free_tfm(tfm); + tfm=NULL; + } +err: + if (debug_crypto > 0) + printk(KERN_DEBUG "klips_debug:_capi_new_key:" + "name=%s key=%p keylen=%d tfm=%p\n", + alg->ixt_common.ixt_name, key, keylen, tfm); + return (__u8 *) tfm; +} +/* + * core encryption function: will use cx->ci to call actual cipher's + * cbc function + */ +static int +_capi_cbc_encrypt(struct ipsec_alg_enc *alg, __u8 * key_e, __u8 * in, int ilen, const __u8 * iv, int encrypt) { + int error =0; + struct crypto_tfm *tfm=(struct crypto_tfm *)key_e; + struct scatterlist sg = { + .page = virt_to_page(in), + .offset = (unsigned long)(in) % PAGE_SIZE, + .length=ilen, + }; + if (debug_crypto > 1) + printk(KERN_DEBUG "klips_debug:_capi_cbc_encrypt:" + "key_e=%p " + "in=%p out=%p ilen=%d iv=%p encrypt=%d\n" + , key_e + , in, in, ilen, iv, encrypt); + crypto_cipher_set_iv(tfm, iv, crypto_tfm_alg_ivsize(tfm)); + if (encrypt) + error = crypto_cipher_encrypt (tfm, &sg, &sg, ilen); + else + error = crypto_cipher_decrypt (tfm, &sg, &sg, ilen); + if (debug_crypto > 1) + printk(KERN_DEBUG "klips_debug:_capi_cbc_encrypt:" + "error=%d\n" + , error); + return (error<0)? error : ilen; +} +/* + * main initialization loop: for each cipher in list, do + * 1) setup cryptoapi cipher else continue + * 2) register ipsec_alg object + */ +static int +setup_cipher_list (struct ipsec_alg_capi_cipher* clist) +{ + struct ipsec_alg_capi_cipher *cptr; + /* foreach cipher in list ... */ + for (cptr=clist;cptr->ciphername;cptr++) { + /* + * see if cipher has been disabled (0) or + * if noauto set and not enabled (1) + */ + if (cptr->parm[0] == 0 || (noauto && cptr->parm[0] < 0)) { + if (debug_crypto>0) + printk(KERN_INFO "setup_cipher_list(): " + "ciphername=%s skipped at user request: " + "noauto=%d parm[0]=%d parm[1]=%d\n" + , cptr->ciphername + , noauto + , cptr->parm[0] + , cptr->parm[1]); + continue; + } + /* + * use a local ci to avoid touching cptr->ci, + * if register ipsec_alg success then bind cipher + */ + if(cptr->alg.ixt_common.ixt_support.ias_name == NULL) { + cptr->alg.ixt_common.ixt_support.ias_name = cptr->ciphername; + } + + if( setup_cipher(cptr->ciphername) ) { + if (debug_crypto > 0) + printk(KERN_DEBUG "klips_debug:" + "setup_cipher_list():" + "ciphername=%s found\n" + , cptr->ciphername); + + if (setup_ipsec_alg_capi_cipher(cptr) != 0) { + printk(KERN_ERR "klips_debug:" + "setup_cipher_list():" + "ciphername=%s failed ipsec_alg_register\n" + , cptr->ciphername); + } + } else { + printk(KERN_INFO "KLIPS: lookup for ciphername=%s: not found \n", + cptr->ciphername); + } + } + return 0; +} +/* + * deregister ipsec_alg objects and unbind ciphers + */ +static int +unsetup_cipher_list (struct ipsec_alg_capi_cipher* clist) +{ + struct ipsec_alg_capi_cipher *cptr; + /* foreach cipher in list ... */ + for (cptr=clist;cptr->ciphername;cptr++) { + if (cptr->alg.ixt_common.ixt_state & IPSEC_ALG_ST_REGISTERED) { + unregister_ipsec_alg_enc(&cptr->alg); + } + } + return 0; +} +/* + * test loop for registered algos + */ +static int +test_cipher_list (struct ipsec_alg_capi_cipher* clist) +{ + int test_ret; + struct ipsec_alg_capi_cipher *cptr; + /* foreach cipher in list ... */ + for (cptr=clist;cptr->ciphername;cptr++) { + if (cptr->alg.ixt_common.ixt_state & IPSEC_ALG_ST_REGISTERED) { + test_ret=ipsec_alg_test( + cptr->alg.ixt_common.ixt_support.ias_exttype, + cptr->alg.ixt_common.ixt_support.ias_id, + test_crypto); + printk("test_cipher_list(alg_type=%d alg_id=%d): test_ret=%d\n", + cptr->alg.ixt_common.ixt_support.ias_exttype, + cptr->alg.ixt_common.ixt_support.ias_id, + test_ret); + } + } + return 0; +} + +IPSEC_ALG_MODULE_INIT_STATIC( ipsec_cryptoapi_init ) +{ + int ret, test_ret; + if ((ret=setup_cipher_list(alg_capi_carray)) < 0) + return -EPROTONOSUPPORT; + if (ret==0 && test_crypto) { + test_ret=test_cipher_list(alg_capi_carray); + } + return ret; +} +IPSEC_ALG_MODULE_EXIT_STATIC( ipsec_cryptoapi_fini ) +{ + unsetup_cipher_list(alg_capi_carray); + return; +} +#ifdef MODULE_LICENSE +MODULE_LICENSE("GPL"); +#endif + +#endif /* NO_CRYPTOAPI_SUPPORT */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ipsec_esp.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,607 @@ +/* + * processing code for ESP + * Copyright (C) 2003 Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +char ipsec_esp_c_version[] = "RCSID $Id: ipsec_esp.c,v 1.13.2.6 2006/10/06 21:39:26 paul Exp $"; +#ifndef AUTOCONF_INCLUDED +#include +#endif +#include + +#define __NO_VERSION__ +#include +#include /* printk() */ + +#include "openswan/ipsec_param.h" + +#ifdef MALLOC_SLAB +# include /* kmalloc() */ +#else /* MALLOC_SLAB */ +# include /* kmalloc() */ +#endif /* MALLOC_SLAB */ +#include /* error codes */ +#include /* size_t */ +#include /* mark_bh */ + +#include /* struct device, and other headers */ +#include /* eth_type_trans */ +#include /* struct iphdr */ +#include +#include +#ifdef SPINLOCK +# ifdef SPINLOCK_23 +# include /* *lock* */ +# else /* SPINLOCK_23 */ +# include /* *lock* */ +# endif /* SPINLOCK_23 */ +#endif /* SPINLOCK */ + +#include +#include + +#include "openswan/radij.h" +#include "openswan/ipsec_encap.h" +#include "openswan/ipsec_sa.h" + +#include "openswan/ipsec_radij.h" +#include "openswan/ipsec_xform.h" +#include "openswan/ipsec_tunnel.h" +#include "openswan/ipsec_rcv.h" +#include "openswan/ipsec_xmit.h" + +#include "openswan/ipsec_auth.h" + +#ifdef CONFIG_KLIPS_ESP +#include "openswan/ipsec_esp.h" +#endif /* CONFIG_KLIPS_ESP */ + +#include "openswan/ipsec_proto.h" +#include "openswan/ipsec_alg.h" + +#ifdef CONFIG_KLIPS_DEBUG +#define ESP_DMP(_x,_y,_z) if(debug_rcv && sysctl_ipsec_debug_verbose) ipsec_dmp_block(_x,_y,_z) +#else +#define ESP_DMP(_x,_y,_z) +#endif + +#ifdef CONFIG_KLIPS_ESP +enum ipsec_rcv_value +ipsec_rcv_esp_checks(struct ipsec_rcv_state *irs, + struct sk_buff *skb) +{ + __u8 proto; + int len; /* packet length */ + + len = skb->len; + proto = irs->ipp->protocol; + + /* XXX this will need to be 8 for IPv6 */ + if ((proto == IPPROTO_ESP) && ((len - irs->iphlen) % 4)) { + printk("klips_error:ipsec_rcv: " + "got packet with content length = %d from %s -- should be on 4 octet boundary, packet dropped\n", + len - irs->iphlen, + irs->ipsaddr_txt); + if(irs->stats) { + irs->stats->rx_errors++; + } + return IPSEC_RCV_BADLEN; + } + + if(skb->len < (irs->hard_header_len + sizeof(struct iphdr) + sizeof(struct esphdr))) { + KLIPS_PRINT(debug_rcv & DB_RX_INAU, + "klips_debug:ipsec_rcv: " + "runt esp packet of skb->len=%d received from %s, dropped.\n", + skb->len, + irs->ipsaddr_txt); + if(irs->stats) { + irs->stats->rx_errors++; + } + return IPSEC_RCV_BADLEN; + } + + irs->protostuff.espstuff.espp = (struct esphdr *)skb->h.raw; + irs->said.spi = irs->protostuff.espstuff.espp->esp_spi; + + return IPSEC_RCV_OK; +} + +enum ipsec_rcv_value +ipsec_rcv_esp_decrypt_setup(struct ipsec_rcv_state *irs, + struct sk_buff *skb, + __u32 *replay, + unsigned char **authenticator) +{ + struct esphdr *espp = irs->protostuff.espstuff.espp; + //unsigned char *idat = (unsigned char *)espp; + + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "packet from %s received with seq=%d (iv)=0x%08x%08x iplen=%d esplen=%d sa=%s\n", + irs->ipsaddr_txt, + (__u32)ntohl(espp->esp_rpl), + (__u32)ntohl(*((__u32 *)(espp->esp_iv) )), + (__u32)ntohl(*((__u32 *)(espp->esp_iv) + 1)), + irs->len, + irs->ilen, + irs->sa_len ? irs->sa : " (error)"); + + *replay = ntohl(espp->esp_rpl); + *authenticator = &(skb->h.raw[irs->ilen]); + + return IPSEC_RCV_OK; +} + +enum ipsec_rcv_value +ipsec_rcv_esp_authcalc(struct ipsec_rcv_state *irs, + struct sk_buff *skb) +{ + struct auth_alg *aa; + struct esphdr *espp = irs->protostuff.espstuff.espp; + union { + MD5_CTX md5; + SHA1_CTX sha1; + } tctx; + + if (irs->ipsp->ips_alg_auth) { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "ipsec_alg hashing proto=%d... ", + irs->said.proto); + if(irs->said.proto == IPPROTO_ESP) { + ipsec_alg_sa_esp_hash(irs->ipsp, + (caddr_t)espp, irs->ilen, + irs->hash, AHHMAC_HASHLEN); + return IPSEC_RCV_OK; + } + return IPSEC_RCV_BADPROTO; + } + aa = irs->authfuncs; + + /* copy the initialized keying material */ + memcpy(&tctx, irs->ictx, irs->ictx_len); + +#ifdef HASH_DEBUG + ESP_DMP("ictx", irs->ictx, irs->ictx_len); + + ESP_DMP("mac_esp", (caddr_t)espp, irs->ilen); +#endif + (*aa->update)((void *)&tctx, (caddr_t)espp, irs->ilen); + + (*aa->final)(irs->hash, (void *)&tctx); + +#ifdef HASH_DEBUG + ESP_DMP("hash1", irs->hash, aa->hashlen); +#endif + + memcpy(&tctx, irs->octx, irs->octx_len); + +#ifdef HASH_DEBUG + ESP_DMP("octx", irs->octx, irs->octx_len); +#endif + + (*aa->update)((void *)&tctx, irs->hash, aa->hashlen); + (*aa->final)(irs->hash, (void *)&tctx); + + return IPSEC_RCV_OK; +} + + +enum ipsec_rcv_value +ipsec_rcv_esp_decrypt(struct ipsec_rcv_state *irs) +{ + struct ipsec_sa *ipsp = irs->ipsp; + struct esphdr *espp = irs->protostuff.espstuff.espp; + int i; + int pad = 0, padlen; + int badpad = 0; + int esphlen = 0; + __u8 *idat; /* pointer to content to be decrypted/authenticated */ + int encaplen = 0; + struct sk_buff *skb; + struct ipsec_alg_enc *ixt_e=NULL; + + skb=irs->skb; + + idat = skb->h.raw; + + /* encaplen is the distance between the end of the IP + * header and the beginning of the ESP header. + * on ESP headers it is zero, but on UDP-encap ESP + * it includes the space for the UDP header. + * + * Note: UDP-encap code has already moved the + * skb->data forward to accomodate this. + */ + encaplen = idat - (skb->nh.raw + irs->iphlen); + + ixt_e=ipsp->ips_alg_enc; + esphlen = ESP_HEADER_LEN + ixt_e->ixt_common.ixt_support.ias_ivlen/8; + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "encalg=%d esphlen=%d\n", + ipsp->ips_encalg, esphlen); + + idat += esphlen; + irs->ilen -= esphlen; + + if (ipsec_alg_esp_encrypt(ipsp, + idat, irs->ilen, espp->esp_iv, + IPSEC_ALG_DECRYPT) <= 0) { +#ifdef CONFIG_KLIPS_DEBUG + KLIPS_ERROR(debug_rcv, "klips_error:ipsec_rcv: " + "got packet with esplen = %d " + "from %s -- should be on " + "ENC(%d) octet boundary, " + "packet dropped\n", + irs->ilen, + irs->ipsaddr_txt, + ipsp->ips_encalg); +#endif + if(irs->stats) { + irs->stats->rx_errors++; + } + return IPSEC_RCV_BAD_DECRYPT; + } + + ESP_DMP("postdecrypt", idat, irs->ilen); + + irs->next_header = idat[irs->ilen - 1]; + padlen = idat[irs->ilen - 2]; + pad = padlen + 2 + irs->authlen; + + KLIPS_PRINT(debug_rcv & DB_RX_IPAD, + "klips_debug:ipsec_rcv: " + "padlen=%d, contents: 0x: 0x 0x ...\n", + padlen); + + for (i = 1; i <= padlen; i++) { + if((i % 16) == 1) { + KLIPS_PRINT(debug_rcv & DB_RX_IPAD, + "klips_debug: %02x:", + i - 1); + } + KLIPS_PRINTMORE(debug_rcv & DB_RX_IPAD, + " %02x", + idat[irs->ilen - 2 - padlen + i - 1]); + if(i != idat[irs->ilen - 2 - padlen + i - 1]) { + badpad = 1; + } + if((i % 16) == 0) { + KLIPS_PRINTMORE(debug_rcv & DB_RX_IPAD, + "\n"); + } + } + if((i % 16) != 1) { + KLIPS_PRINTMORE(debug_rcv & DB_RX_IPAD, + "\n"); + } + if(badpad) { + KLIPS_PRINT(debug_rcv & DB_RX_IPAD, + "klips_debug:ipsec_rcv: " + "warning, decrypted packet from %s has bad padding\n", + irs->ipsaddr_txt); + KLIPS_PRINT(debug_rcv & DB_RX_IPAD, + "klips_debug:ipsec_rcv: " + "...may be bad decryption -- not dropped\n"); + ipsp->ips_errs.ips_encpad_errs += 1; + } + + KLIPS_PRINT(debug_rcv & DB_RX_IPAD, + "klips_debug:ipsec_rcv: " + "packet decrypted from %s: next_header = %d, padding = %d\n", + irs->ipsaddr_txt, + irs->next_header, + pad - 2 - irs->authlen); + + irs->ipp->tot_len = htons(ntohs(irs->ipp->tot_len) - (esphlen + pad)); + + /* + * move the IP header forward by the size of the ESP header, which + * will remove the the ESP header from the packet. + * + * XXX this is really unnecessary, since odds we are in tunnel + * mode, and we will be *removing* this IP header. + * + */ + memmove((void *)(idat - irs->iphlen), + (void *)(skb->nh.raw), irs->iphlen); + + ESP_DMP("esp postmove", (idat - irs->iphlen), + irs->iphlen + irs->ilen); + + /* skb_pull below, will move up by esphlen */ + + /* XXX not clear how this can happen, as the message indicates */ + if(skb->len < esphlen) { + printk(KERN_WARNING + "klips_error:ipsec_rcv: " + "tried to skb_pull esphlen=%d, %d available. This should never happen, please report.\n", + esphlen, (int)(skb->len)); + return IPSEC_RCV_ESP_DECAPFAIL; + } + skb_pull(skb, esphlen); + skb->nh.raw = idat - irs->iphlen; + irs->ipp = skb->nh.iph; + + ESP_DMP("esp postpull", skb->data, skb->len); + + /* now, trip off the padding from the end */ + KLIPS_PRINT(debug_rcv & DB_RX_PKTRX, + "klips_debug:ipsec_rcv: " + "trimming to %d.\n", + irs->len - esphlen - pad); + if(pad + esphlen <= irs->len) { + skb_trim(skb, irs->len - esphlen - pad); + } else { + KLIPS_PRINT(debug_rcv & DB_RX_PKTRX, + "klips_debug:ipsec_rcv: " + "bogus packet, size is zero or negative, dropping.\n"); + return IPSEC_RCV_DECAPFAIL; + } + + return IPSEC_RCV_OK; +} + +/* + * + */ +enum ipsec_xmit_value +ipsec_xmit_esp_setup(struct ipsec_xmit_state *ixs) +{ +#ifdef CONFIG_KLIPS_ENC_3DES + __u32 iv[2]; +#endif + struct esphdr *espp; + int ilen = 0; + int padlen = 0, i; + unsigned char *dat; + unsigned char *idat, *pad; + __u8 hash[AH_AMAX]; + union { +#ifdef CONFIG_KLIPS_AUTH_HMAC_MD5 + MD5_CTX md5; +#endif /* CONFIG_KLIPS_AUTH_HMAC_MD5 */ +#ifdef CONFIG_KLIPS_AUTH_HMAC_SHA1 + SHA1_CTX sha1; +#endif /* CONFIG_KLIPS_AUTH_HMAC_SHA1 */ + } tctx; + + dat = (unsigned char *)ixs->iph; + + espp = (struct esphdr *)(dat + ixs->iphlen); + espp->esp_spi = ixs->ipsp->ips_said.spi; + espp->esp_rpl = htonl(++(ixs->ipsp->ips_replaywin_lastseq)); + + switch(ixs->ipsp->ips_encalg) { +#if defined(CONFIG_KLIPS_ENC_3DES) +#ifdef CONFIG_KLIPS_ENC_3DES + case ESP_3DES: +#endif /* CONFIG_KLIPS_ENC_3DES */ + iv[0] = *((__u32*)&(espp->esp_iv) ) = + ((__u32*)(ixs->ipsp->ips_iv))[0]; + iv[1] = *((__u32*)&(espp->esp_iv) + 1) = + ((__u32*)(ixs->ipsp->ips_iv))[1]; + break; +#endif /* defined(CONFIG_KLIPS_ENC_3DES) */ + default: + ixs->stats->tx_errors++; + return IPSEC_XMIT_ESP_BADALG; + } + + idat = dat + ixs->iphlen + sizeof(struct esphdr); + ilen = ixs->skb->len - (ixs->iphlen + sizeof(struct esphdr) + ixs->authlen); + + /* Self-describing padding */ + pad = &dat[ixs->skb->len - ixs->tailroom]; + padlen = ixs->tailroom - 2 - ixs->authlen; + for (i = 0; i < padlen; i++) { + pad[i] = i + 1; + } + dat[ixs->skb->len - ixs->authlen - 2] = padlen; + + dat[ixs->skb->len - ixs->authlen - 1] = ixs->iph->protocol; + ixs->iph->protocol = IPPROTO_ESP; + + switch(ixs->ipsp->ips_encalg) { +#ifdef CONFIG_KLIPS_ENC_3DES + case ESP_3DES: + des_ede3_cbc_encrypt((des_cblock *)idat, + (des_cblock *)idat, + ilen, + ((struct des_eks *)(ixs->ipsp->ips_key_e))[0].ks, + ((struct des_eks *)(ixs->ipsp->ips_key_e))[1].ks, + ((struct des_eks *)(ixs->ipsp->ips_key_e))[2].ks, + (des_cblock *)iv, 1); + break; +#endif /* CONFIG_KLIPS_ENC_3DES */ + default: + ixs->stats->tx_errors++; + return IPSEC_XMIT_ESP_BADALG; + } + + switch(ixs->ipsp->ips_encalg) { +#if defined(CONFIG_KLIPS_ENC_3DES) +#ifdef CONFIG_KLIPS_ENC_3DES + case ESP_3DES: +#endif /* CONFIG_KLIPS_ENC_3DES */ + /* XXX update IV with the last 8 octets of the encryption */ +#if KLIPS_IMPAIRMENT_ESPIV_CBC_ATTACK + ((__u32*)(ixs->ipsp->ips_iv))[0] = + ((__u32 *)(idat))[(ilen >> 2) - 2]; + ((__u32*)(ixs->ipsp->ips_iv))[1] = + ((__u32 *)(idat))[(ilen >> 2) - 1]; +#else /* KLIPS_IMPAIRMENT_ESPIV_CBC_ATTACK */ + prng_bytes(&ipsec_prng, (char *)ixs->ipsp->ips_iv, EMT_ESPDES_IV_SZ); +#endif /* KLIPS_IMPAIRMENT_ESPIV_CBC_ATTACK */ + break; +#endif /* defined(CONFIG_KLIPS_ENC_3DES) */ + default: + ixs->stats->tx_errors++; + return IPSEC_XMIT_ESP_BADALG; + } + + switch(ixs->ipsp->ips_authalg) { +#ifdef CONFIG_KLIPS_AUTH_HMAC_MD5 + case AH_MD5: + ipsec_xmit_dmp("espp", (char*)espp, ixs->skb->len - ixs->iphlen - ixs->authlen); + tctx.md5 = ((struct md5_ctx*)(ixs->ipsp->ips_key_a))->ictx; + ipsec_xmit_dmp("ictx", (char*)&tctx.md5, sizeof(tctx.md5)); + osMD5Update(&tctx.md5, (caddr_t)espp, ixs->skb->len - ixs->iphlen - ixs->authlen); + ipsec_xmit_dmp("ictx+dat", (char*)&tctx.md5, sizeof(tctx.md5)); + osMD5Final(hash, &tctx.md5); + ipsec_xmit_dmp("ictx hash", (char*)&hash, sizeof(hash)); + tctx.md5 = ((struct md5_ctx*)(ixs->ipsp->ips_key_a))->octx; + ipsec_xmit_dmp("octx", (char*)&tctx.md5, sizeof(tctx.md5)); + osMD5Update(&tctx.md5, hash, AHMD596_ALEN); + ipsec_xmit_dmp("octx+hash", (char*)&tctx.md5, sizeof(tctx.md5)); + osMD5Final(hash, &tctx.md5); + ipsec_xmit_dmp("octx hash", (char*)&hash, sizeof(hash)); + memcpy(&(dat[ixs->skb->len - ixs->authlen]), hash, ixs->authlen); + + /* paranoid */ + memset((caddr_t)&tctx.md5, 0, sizeof(tctx.md5)); + memset((caddr_t)hash, 0, sizeof(*hash)); + break; +#endif /* CONFIG_KLIPS_AUTH_HMAC_MD5 */ +#ifdef CONFIG_KLIPS_AUTH_HMAC_SHA1 + case AH_SHA: + tctx.sha1 = ((struct sha1_ctx*)(ixs->ipsp->ips_key_a))->ictx; + SHA1Update(&tctx.sha1, (caddr_t)espp, ixs->skb->len - ixs->iphlen - ixs->authlen); + SHA1Final(hash, &tctx.sha1); + tctx.sha1 = ((struct sha1_ctx*)(ixs->ipsp->ips_key_a))->octx; + SHA1Update(&tctx.sha1, hash, AHSHA196_ALEN); + SHA1Final(hash, &tctx.sha1); + memcpy(&(dat[ixs->skb->len - ixs->authlen]), hash, ixs->authlen); + + /* paranoid */ + memset((caddr_t)&tctx.sha1, 0, sizeof(tctx.sha1)); + memset((caddr_t)hash, 0, sizeof(*hash)); + break; +#endif /* CONFIG_KLIPS_AUTH_HMAC_SHA1 */ + case AH_NONE: + break; + default: + ixs->stats->tx_errors++; + return IPSEC_XMIT_AH_BADALG; + } + + ixs->skb->h.raw = (unsigned char*)espp; + + return IPSEC_XMIT_OK; +} + + +struct xform_functions esp_xform_funcs[]={ + { rcv_checks: ipsec_rcv_esp_checks, + rcv_setup_auth: ipsec_rcv_esp_decrypt_setup, + rcv_calc_auth: ipsec_rcv_esp_authcalc, + rcv_decrypt: ipsec_rcv_esp_decrypt, + + xmit_setup: ipsec_xmit_esp_setup, + xmit_headroom: sizeof(struct esphdr), + xmit_needtailroom: 1, + }, +}; + +#ifdef NET_26 +struct inet_protocol esp_protocol = { + .handler = ipsec_rcv, + .no_policy = 1, +}; +#else +struct inet_protocol esp_protocol = +{ + ipsec_rcv, /* ESP handler */ + NULL, /* TUNNEL error control */ +#ifdef NETDEV_25 + 1, /* no policy */ +#else + 0, /* next */ + IPPROTO_ESP, /* protocol ID */ + 0, /* copy */ + NULL, /* data */ + "ESP" /* name */ +#endif +}; +#endif /* NET_26 */ + +#endif /* !CONFIG_KLIPS_ESP */ + + +/* + * $Log: ipsec_esp.c,v $ + * Revision 1.13.2.6 2006/10/06 21:39:26 paul + * Fix for 2.6.18+ only include linux/config.h if AUTOCONF_INCLUDED is not + * set. This is defined through autoconf.h which is included through the + * linux kernel build macros. + * + * Revision 1.13.2.5 2006/08/24 03:02:01 paul + * Compile fixes for when CONFIG_KLIPS_DEBUG is not set. (bug #642) + * + * Revision 1.13.2.4 2006/05/06 03:07:38 ken + * Pull in proper padsize->tailroom fix from #public + * Need to do correct math on padlen since padsize is not equal to tailroom + * + * Revision 1.13.2.3 2006/05/05 03:58:04 ken + * ixs->padsize becomes ixs->tailroom + * + * Revision 1.13.2.2 2006/05/01 14:36:03 mcr + * use KLIPS_ERROR for fatal things. + * + * Revision 1.13.2.1 2006/04/20 16:33:06 mcr + * remove all of CONFIG_KLIPS_ALG --- one can no longer build without it. + * Fix in-kernel module compilation. Sub-makefiles do not work. + * + * Revision 1.13 2005/05/21 03:19:57 mcr + * hash ctx is not really that interesting most of the time. + * + * Revision 1.12 2005/05/11 01:28:49 mcr + * removed "poor-man"s OOP in favour of proper C structures. + * + * Revision 1.11 2005/04/29 05:10:22 mcr + * removed from extraenous includes to make unit testing easier. + * + * Revision 1.10 2005/04/17 04:36:14 mcr + * code now deals with ESP and UDP-ESP code. + * + * Revision 1.9 2005/04/15 19:52:30 mcr + * adjustments to use proper skb fields for data. + * + * Revision 1.8 2004/09/14 00:22:57 mcr + * adjustment of MD5* functions. + * + * Revision 1.7 2004/09/13 02:23:01 mcr + * #define inet_protocol if necessary. + * + * Revision 1.6 2004/09/06 18:35:49 mcr + * 2.6.8.1 gets rid of inet_protocol->net_protocol compatibility, + * so adjust for that. + * + * Revision 1.5 2004/08/17 03:27:23 mcr + * klips 2.6 edits. + * + * Revision 1.4 2004/08/04 15:57:07 mcr + * moved des .h files to include/des/ * + * included 2.6 protocol specific things + * started at NAT-T support, but it will require a kernel patch. + * + * Revision 1.3 2004/07/10 19:11:18 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.2 2004/04/06 02:49:25 mcr + * pullup of algo code from alg-branch. + * + * + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ipsec_init.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,614 @@ +/* + * @(#) Initialization code. + * Copyright (C) 1996, 1997 John Ioannidis. + * Copyright (C) 1998 - 2002 Richard Guy Briggs + * 2001 - 2004 Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * /proc system code was split out into ipsec_proc.c after rev. 1.70. + * + */ + +char ipsec_init_c_version[] = "RCSID $Id: ipsec_init.c,v 1.104.2.4 2006/10/06 21:39:26 paul Exp $"; + +#ifndef AUTOCONF_INCLUDED +#include +#endif +#include +#include +#include /* printk() */ + +#include "openswan/ipsec_param.h" + +#ifdef MALLOC_SLAB +# include /* kmalloc() */ +#else /* MALLOC_SLAB */ +# include /* kmalloc() */ +#endif /* MALLOC_SLAB */ +#include /* error codes */ +#include /* size_t */ +#include /* mark_bh */ + +#include /* struct device, and other headers */ +#include /* eth_type_trans */ +#include /* struct iphdr */ +#include /* struct sockaddr_in */ +#include +#include /* get_random_bytes() */ +#include + +#include + +#ifdef SPINLOCK +# ifdef SPINLOCK_23 +# include /* *lock* */ +# else /* 23_SPINLOCK */ +# include /* *lock* */ +# endif /* 23_SPINLOCK */ +#endif /* SPINLOCK */ + +#include + +#ifdef CONFIG_PROC_FS +# include +#endif /* CONFIG_PROC_FS */ + +#ifdef NETLINK_SOCK +# include +#else +# include +#endif + +#include "openswan/radij.h" + +#include "openswan/ipsec_life.h" +#include "openswan/ipsec_stats.h" +#include "openswan/ipsec_sa.h" + +#include "openswan/ipsec_encap.h" +#include "openswan/ipsec_radij.h" +#include "openswan/ipsec_xform.h" +#include "openswan/ipsec_tunnel.h" + +#include "openswan/ipsec_rcv.h" +#include "openswan/ipsec_ah.h" +#include "openswan/ipsec_esp.h" + +#ifdef CONFIG_KLIPS_IPCOMP +# include "openswan/ipcomp.h" +#endif /* CONFIG_KLIPS_IPCOMP */ + +#include "openswan/ipsec_proto.h" +#include "openswan/ipsec_alg.h" + +#include +#include + +#if defined(NET_26) && defined(CONFIG_IPSEC_NAT_TRAVERSAL) +#include +#endif + +#if defined(NET_26) && defined(CONFIG_IPSEC_NAT_TRAVERSAL) && !defined(HAVE_XFRM4_UDP_REGISTER) +#warning "You are trying to build KLIPS2.6 with NAT-T support, but you did not" +#error "properly apply the NAT-T patch to your 2.6 kernel source tree." +#endif + +#if !defined(CONFIG_KLIPS_ESP) && !defined(CONFIG_KLIPS_AH) +#error "kernel configuration must include ESP or AH" +#endif + +/* + * seems to be present in 2.4.10 (Linus), but also in some RH and other + * distro kernels of a lower number. + */ +#ifdef MODULE_LICENSE +MODULE_LICENSE("GPL"); +#endif + +#ifdef CONFIG_KLIPS_DEBUG +int debug_eroute = 0; +int debug_spi = 0; +int debug_netlink = 0; +#endif /* CONFIG_KLIPS_DEBUG */ + +struct prng ipsec_prng; + + +#if defined(NET_26) && defined(CONFIG_IPSEC_NAT_TRAVERSAL) +xfrm4_rcv_encap_t klips_old_encap = NULL; +#endif + +extern int ipsec_device_event(struct notifier_block *dnot, unsigned long event, void *ptr); +/* + * the following structure is required so that we receive + * event notifications when network devices are enabled and + * disabled (ifconfig up and down). + */ +static struct notifier_block ipsec_dev_notifier={ + ipsec_device_event, + NULL, + 0 +}; + +#ifdef CONFIG_SYSCTL +extern int ipsec_sysctl_register(void); +extern void ipsec_sysctl_unregister(void); +#endif + +#if defined(NET_26) || defined(IPSKB_XFRM_TUNNEL_SIZE) +static inline int +openswan_inet_add_protocol(struct inet_protocol *prot, unsigned protocol) +{ + return inet_add_protocol(prot, protocol); +} + +static inline int +openswan_inet_del_protocol(struct inet_protocol *prot, unsigned protocol) +{ + return inet_del_protocol(prot, protocol); +} + +#else +static inline int +openswan_inet_add_protocol(struct inet_protocol *prot, unsigned protocol) +{ + inet_add_protocol(prot); + return 0; +} + +static inline int +openswan_inet_del_protocol(struct inet_protocol *prot, unsigned protocol) +{ + inet_del_protocol(prot); + return 0; +} + +#endif + +/* void */ +int +ipsec_klips_init(void) +{ + int error = 0; + unsigned char seed[256]; +#ifdef CONFIG_KLIPS_ENC_3DES + extern int des_check_key; + + /* turn off checking of keys */ + des_check_key=0; +#endif /* CONFIG_KLIPS_ENC_3DES */ + + KLIPS_PRINT(1, "klips_info:ipsec_init: " + "KLIPS startup, Openswan KLIPS IPsec stack version: %s\n", + ipsec_version_code()); + + error |= ipsec_proc_init(); + +#ifdef SPINLOCK + ipsec_sadb.sadb_lock = SPIN_LOCK_UNLOCKED; +#else /* SPINLOCK */ + ipsec_sadb.sadb_lock = 0; +#endif /* SPINLOCK */ + +#ifndef SPINLOCK + tdb_lock.lock = 0; + eroute_lock.lock = 0; +#endif /* !SPINLOCK */ + + error |= ipsec_sadb_init(); + error |= ipsec_radijinit(); + + error |= pfkey_init(); + + error |= register_netdevice_notifier(&ipsec_dev_notifier); + +#ifdef CONFIG_KLIPS_ESP + openswan_inet_add_protocol(&esp_protocol, IPPROTO_ESP); +#endif /* CONFIG_KLIPS_ESP */ + +#ifdef CONFIG_KLIPS_AH + openswan_inet_add_protocol(&ah_protocol, IPPROTO_AH); +#endif /* CONFIG_KLIPS_AH */ + +/* we never actually link IPCOMP to the stack */ +#ifdef IPCOMP_USED_ALONE +#ifdef CONFIG_KLIPS_IPCOMP + openswan_inet_add_protocol(&comp_protocol, IPPROTO_COMP); +#endif /* CONFIG_KLIPS_IPCOMP */ +#endif + + error |= ipsec_tunnel_init_devices(); + +#if defined(NET_26) && defined(CONFIG_IPSEC_NAT_TRAVERSAL) + /* register our ESP-UDP handler */ + if(udp4_register_esp_rcvencap(klips26_rcv_encap + , &klips_old_encap)!=0) { + printk(KERN_ERR "KLIPS: can not register klips_rcv_encap function\n"); + } +#endif + + +#ifdef CONFIG_SYSCTL + error |= ipsec_sysctl_register(); +#endif + + ipsec_alg_init(); + + get_random_bytes((void *)seed, sizeof(seed)); + prng_init(&ipsec_prng, seed, sizeof(seed)); + + return error; +} + + +/* void */ +int +ipsec_cleanup(void) +{ + int error = 0; + +#ifdef CONFIG_SYSCTL + ipsec_sysctl_unregister(); +#endif +#if defined(NET_26) && defined(CONFIG_IPSEC_NAT_TRAVERSAL) + if(udp4_unregister_esp_rcvencap(klips_old_encap) < 0) { + printk(KERN_ERR "KLIPS: can not unregister klips_rcv_encap function\n"); + } +#endif + + KLIPS_PRINT(debug_netlink, /* debug_tunnel & DB_TN_INIT, */ + "klips_debug:ipsec_cleanup: " + "calling ipsec_tunnel_cleanup_devices.\n"); + error |= ipsec_tunnel_cleanup_devices(); + + KLIPS_PRINT(debug_netlink, "called ipsec_tunnel_cleanup_devices"); + +/* we never actually link IPCOMP to the stack */ +#ifdef IPCOMP_USED_ALONE +#ifdef CONFIG_KLIPS_IPCOMP + if (openswan_inet_del_protocol(&comp_protocol, IPPROTO_COMP) < 0) + printk(KERN_INFO "klips_debug:ipsec_cleanup: " + "comp close: can't remove protocol\n"); +#endif /* CONFIG_KLIPS_IPCOMP */ +#endif /* IPCOMP_USED_ALONE */ + +#ifdef CONFIG_KLIPS_AH + if (openswan_inet_del_protocol(&ah_protocol, IPPROTO_AH) < 0) + printk(KERN_INFO "klips_debug:ipsec_cleanup: " + "ah close: can't remove protocol\n"); +#endif /* CONFIG_KLIPS_AH */ + +#ifdef CONFIG_KLIPS_ESP + if (openswan_inet_del_protocol(&esp_protocol, IPPROTO_ESP) < 0) + printk(KERN_INFO "klips_debug:ipsec_cleanup: " + "esp close: can't remove protocol\n"); +#endif /* CONFIG_KLIPS_ESP */ + + error |= unregister_netdevice_notifier(&ipsec_dev_notifier); + + KLIPS_PRINT(debug_netlink, /* debug_tunnel & DB_TN_INIT, */ + "klips_debug:ipsec_cleanup: " + "calling ipsec_sadb_cleanup.\n"); + error |= ipsec_sadb_cleanup(0); + error |= ipsec_sadb_free(); + + KLIPS_PRINT(debug_netlink, /* debug_tunnel & DB_TN_INIT, */ + "klips_debug:ipsec_cleanup: " + "calling ipsec_radijcleanup.\n"); + error |= ipsec_radijcleanup(); + + KLIPS_PRINT(debug_pfkey, /* debug_tunnel & DB_TN_INIT, */ + "klips_debug:ipsec_cleanup: " + "calling pfkey_cleanup.\n"); + error |= pfkey_cleanup(); + + ipsec_proc_cleanup(); + + prng_final(&ipsec_prng); + + return error; +} + +#ifdef MODULE +int +init_module(void) +{ + int error = 0; + + error |= ipsec_klips_init(); + + return error; +} + +void +cleanup_module(void) +{ + KLIPS_PRINT(debug_netlink, /* debug_tunnel & DB_TN_INIT, */ + "klips_debug:cleanup_module: " + "calling ipsec_cleanup.\n"); + + ipsec_cleanup(); + + KLIPS_PRINT(1, "klips_info:cleanup_module: " + "ipsec module unloaded.\n"); +} +#endif /* MODULE */ + +/* + * $Log: ipsec_init.c,v $ + * Revision 1.104.2.4 2006/10/06 21:39:26 paul + * Fix for 2.6.18+ only include linux/config.h if AUTOCONF_INCLUDED is not + * set. This is defined through autoconf.h which is included through the + * linux kernel build macros. + * + * Revision 1.104.2.3 2006/07/31 15:25:20 paul + * Check for NETKEY backport in Debian using IPSKB_XFRM_TUNNEL_SIZE to + * determine wether inet_add_protocol needs the protocol argument. + * + * Revision 1.104.2.2 2006/04/20 16:33:06 mcr + * remove all of CONFIG_KLIPS_ALG --- one can no longer build without it. + * Fix in-kernel module compilation. Sub-makefiles do not work. + * + * Revision 1.104.2.1 2005/08/12 01:18:20 ken + * Warn people who don't have NAT-T patch applied, but try and compile NAT-T code + * + * Revision 1.105 2005/08/12 00:56:33 mcr + * add warning for people who didn't apply nat-t patch. + * + * Revision 1.104 2005/07/08 15:51:41 mcr + * removed duplicate NAT-T code. + * if CONFIG_IPSEC_NAT_TRAVERSAL isn't defined, then there is no issue. + * + * Revision 1.103 2005/07/08 03:02:05 paul + * Fixed garbled define that accidentally got commited to the real tree. + * + * Revision 1.102 2005/07/08 02:56:37 paul + * gcc4 fixes that were not commited because vault was down + * + * Revision 1.101 2005/04/29 05:10:22 mcr + * removed from extraenous includes to make unit testing easier. + * + * Revision 1.100 2005/04/10 22:56:09 mcr + * change to udp.c registration API. + * + * Revision 1.99 2005/04/08 18:26:13 mcr + * register with udp.c, the klips26 encap receive function + * + * Revision 1.98 2004/09/13 02:23:18 mcr + * #define inet_protocol if necessary. + * + * Revision 1.97 2004/09/06 18:35:49 mcr + * 2.6.8.1 gets rid of inet_protocol->net_protocol compatibility, + * so adjust for that. + * + * Revision 1.96 2004/08/17 03:27:23 mcr + * klips 2.6 edits. + * + * Revision 1.95 2004/08/03 18:19:08 mcr + * in 2.6, use "net_device" instead of #define device->net_device. + * this probably breaks 2.0 compiles. + * + * Revision 1.94 2004/07/10 19:11:18 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.93 2004/04/06 02:49:26 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.92 2004/03/30 15:30:39 ken + * Proper Capitalization + * + * Revision 1.91 2004/03/22 01:51:51 ken + * We are open + * + * Revision 1.90.4.2 2004/04/05 04:30:46 mcr + * patches for alg-branch to compile/work with 2.x openswan + * + * Revision 1.90.4.1 2003/12/22 15:25:52 jjo + * Merged algo-0.8.1-rc11-test1 into alg-branch + * + * Revision 1.90 2003/10/31 02:27:55 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.89.4.1 2003/10/29 01:30:41 mcr + * elimited "struct sa_id". + * + * Revision 1.89 2003/07/31 22:47:16 mcr + * preliminary (untested by FS-team) 2.5 patches. + * + * Revision 1.88 2003/06/22 20:05:36 mcr + * clarified why IPCOMP was not being registered, and put a new + * #ifdef in rather than #if 0. + * + * Revision 1.87 2002/09/20 15:40:51 rgb + * Added a lock to the global ipsec_sadb struct for future use. + * Split ipsec_sadb_cleanup from new funciton ipsec_sadb_free to avoid problem + * of freeing newly created structures when clearing the reftable upon startup + * to start from a known state. + * + * Revision 1.86 2002/08/15 18:39:15 rgb + * Move ipsec_prng outside debug code. + * + * Revision 1.85 2002/05/14 02:35:29 rgb + * Change reference to tdb to ipsa. + * + * Revision 1.84 2002/04/24 07:55:32 mcr + * #include patches and Makefiles for post-reorg compilation. + * + * Revision 1.83 2002/04/24 07:36:28 mcr + * Moved from ./klips/net/ipsec/ipsec_init.c,v + * + * Revision 1.82 2002/04/20 00:12:25 rgb + * Added esp IV CBC attack fix, disabled. + * + * Revision 1.81 2002/04/09 16:13:32 mcr + * switch license to straight GPL. + * + * Revision 1.80 2002/03/24 07:34:08 rgb + * Sanity check for at least one of AH or ESP configured. + * + * Revision 1.79 2002/02/05 22:55:15 mcr + * added MODULE_LICENSE declaration. + * This macro does not appear in all kernel versions (see comment). + * + * Revision 1.78 2002/01/29 17:17:55 mcr + * moved include of ipsec_param.h to after include of linux/kernel.h + * otherwise, it seems that some option that is set in ipsec_param.h + * screws up something subtle in the include path to kernel.h, and + * it complains on the snprintf() prototype. + * + * Revision 1.77 2002/01/29 04:00:51 mcr + * more excise of kversions.h header. + * + * Revision 1.76 2002/01/29 02:13:17 mcr + * introduction of ipsec_kversion.h means that include of + * ipsec_param.h must preceed any decisions about what files to + * include to deal with differences in kernel source. + * + * Revision 1.75 2001/11/26 09:23:48 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.74 2001/11/22 05:44:11 henry + * new version stuff + * + * Revision 1.71.2.2 2001/10/22 20:51:00 mcr + * explicitely set des_check_key. + * + * Revision 1.71.2.1 2001/09/25 02:19:39 mcr + * /proc manipulation code moved to new ipsec_proc.c + * + * Revision 1.73 2001/11/06 19:47:17 rgb + * Changed lifetime_packets to uint32 from uint64. + * + * Revision 1.72 2001/10/18 04:45:19 rgb + * 2.4.9 kernel deprecates linux/malloc.h in favour of linux/slab.h, + * lib/freeswan.h version macros moved to lib/kversions.h. + * Other compiler directive cleanups. + * + * Revision 1.71 2001/09/20 15:32:45 rgb + * Minor pfkey lifetime fixes. + * + * Revision 1.70 2001/07/06 19:51:21 rgb + * Added inbound policy checking code for IPIP SAs. + * + * Revision 1.69 2001/06/14 19:33:26 rgb + * Silence startup message for console, but allow it to be logged. + * Update copyright date. + * + * Revision 1.68 2001/05/29 05:14:36 rgb + * Added PMTU to /proc/net/ipsec_tncfg output. See 'man 5 ipsec_tncfg'. + * + * Revision 1.67 2001/05/04 16:34:52 rgb + * Rremove erroneous checking of return codes for proc_net_* in 2.4. + * + * Revision 1.66 2001/05/03 19:40:34 rgb + * Check error return codes in startup and shutdown. + * + * Revision 1.65 2001/02/28 05:03:27 rgb + * Clean up and rationalise startup messages. + * + * Revision 1.64 2001/02/27 22:24:53 rgb + * Re-formatting debug output (line-splitting, joining, 1arg/line). + * Check for satoa() return codes. + * + * Revision 1.63 2000/11/29 20:14:06 rgb + * Add src= to the output of /proc/net/ipsec_spi and delete dst from IPIP. + * + * Revision 1.62 2000/11/06 04:31:24 rgb + * Ditched spin_lock_irqsave in favour of spin_lock_bh. + * Fixed longlong for pre-2.4 kernels (Svenning). + * Add Svenning's adaptive content compression. + * Disabled registration of ipcomp handler. + * + * Revision 1.61 2000/10/11 13:37:54 rgb + * #ifdef out debug print that causes proc/net/ipsec_version to oops. + * + * Revision 1.60 2000/09/20 03:59:01 rgb + * Change static info functions to DEBUG_NO_STATIC to reveal function names + * in oopsen. + * + * Revision 1.59 2000/09/16 01:06:26 rgb + * Added cast of var to silence compiler warning about long fed to int + * format. + * + * Revision 1.58 2000/09/15 11:37:01 rgb + * Merge in heavily modified Svenning Soerensen's + * IPCOMP zlib deflate code. + * + * Revision 1.57 2000/09/12 03:21:50 rgb + * Moved radij_c_version printing to ipsec_version_get_info(). + * Reformatted ipsec_version_get_info(). + * Added sysctl_{,un}register() calls. + * + * Revision 1.56 2000/09/08 19:16:50 rgb + * Change references from DEBUG_IPSEC to CONFIG_IPSEC_DEBUG. + * Removed all references to CONFIG_IPSEC_PFKEYv2. + * + * Revision 1.55 2000/08/30 05:19:03 rgb + * Cleaned up no longer used spi_next, netlink register/unregister, other + * minor cleanup. + * Removed cruft replaced by TDB_XFORM_NAME. + * Removed all the rest of the references to tdb_spi, tdb_proto, tdb_dst. + * Moved debug version strings to printk when /proc/net/ipsec_version is + * called. + * + * Revision 1.54 2000/08/20 18:31:05 rgb + * Changed cosmetic alignment in spi_info. + * Changed addtime and usetime to use actual value which is relative + * anyways, as intended. (Momchil) + * + * Revision 1.53 2000/08/18 17:37:03 rgb + * Added an (int) cast to shut up the compiler... + * + * Revision 1.52 2000/08/01 14:51:50 rgb + * Removed _all_ remaining traces of DES. + * + * Revision 1.51 2000/07/25 20:41:22 rgb + * Removed duplicate parameter in spi_getinfo. + * + * Revision 1.50 2000/07/17 03:21:45 rgb + * Removed /proc/net/ipsec_spinew. + * + * Revision 1.49 2000/06/28 05:46:51 rgb + * Renamed ivlen to iv_bits for consistency. + * Changed output of add and use times to be relative to now. + * + * Revision 1.48 2000/05/11 18:26:10 rgb + * Commented out calls to netlink_attach/detach to avoid activating netlink + * in the kenrel config. + * + * Revision 1.47 2000/05/10 22:35:26 rgb + * Comment out most of the startup version information. + * + * Revision 1.46 2000/03/22 16:15:36 rgb + * Fixed renaming of dev_get (MB). + * + * Revision 1.45 2000/03/16 06:40:48 rgb + * Hardcode PF_KEYv2 support. + * + * Revision 1.44 2000/01/22 23:19:20 rgb + * Simplified code to use existing macro TDB_XFORM_NAME(). + * + * Revision 1.43 2000/01/21 06:14:04 rgb + * Print individual stats only if non-zero. + * Removed 'bits' from each keylength for brevity. + * Shortened lifetimes legend for brevity. + * Changed wording from 'last_used' to the clearer 'idle'. + * + * Revision 1.42 1999/12/31 14:57:19 rgb + * MB fix for new dummy-less proc_get_info in 2.3.35. + * + * + * Local variables: + * c-file-style: "linux" + * End: + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ipsec_ipcomp.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,256 @@ +/* + * processing code for IPCOMP + * Copyright (C) 2003 Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +char ipsec_ipcomp_c_version[] = "RCSID $Id: ipsec_ipcomp.c,v 1.5.2.2 2006/10/06 21:39:26 paul Exp $"; +#ifndef AUTOCONF_INCLUDED +#include +#endif +#include + +#define __NO_VERSION__ +#include +#include /* printk() */ + +#include "openswan/ipsec_param.h" + +#ifdef MALLOC_SLAB +# include /* kmalloc() */ +#else /* MALLOC_SLAB */ +# include /* kmalloc() */ +#endif /* MALLOC_SLAB */ +#include /* error codes */ +#include /* size_t */ +#include /* mark_bh */ + +#include /* struct device, and other headers */ +#include /* eth_type_trans */ +#include /* struct iphdr */ +#include +#include +#ifdef SPINLOCK +# ifdef SPINLOCK_23 +# include /* *lock* */ +# else /* SPINLOCK_23 */ +# include /* *lock* */ +# endif /* SPINLOCK_23 */ +#endif /* SPINLOCK */ + +#include + +#include "openswan/radij.h" +#include "openswan/ipsec_encap.h" +#include "openswan/ipsec_sa.h" + +#include "openswan/ipsec_radij.h" +#include "openswan/ipsec_xform.h" +#include "openswan/ipsec_tunnel.h" +#include "openswan/ipsec_rcv.h" +#include "openswan/ipsec_xmit.h" + +#include "openswan/ipsec_auth.h" + +#ifdef CONFIG_KLIPS_IPCOMP +#include "openswan/ipsec_ipcomp.h" +#endif /* CONFIG_KLIPS_IPCOMP */ + +#include "openswan/ipsec_proto.h" + +#ifdef CONFIG_KLIPS_DEBUG +int debug_ipcomp = 0; +#endif /* CONFIG_KLIPS_DEBUG */ + + +#ifdef CONFIG_KLIPS_IPCOMP +enum ipsec_rcv_value +ipsec_rcv_ipcomp_checks(struct ipsec_rcv_state *irs, + struct sk_buff *skb) +{ + int ipcompminlen; + + ipcompminlen = sizeof(struct iphdr); + + if(skb->len < (ipcompminlen + sizeof(struct ipcomphdr))) { + KLIPS_PRINT(debug_rcv & DB_RX_INAU, + "klips_debug:ipsec_rcv: " + "runt comp packet of skb->len=%d received from %s, dropped.\n", + skb->len, + irs->ipsaddr_txt); + if(irs->stats) { + irs->stats->rx_errors++; + } + return IPSEC_RCV_BADLEN; + } + + irs->protostuff.ipcompstuff.compp = (struct ipcomphdr *)skb->h.raw; + irs->said.spi = htonl((__u32)ntohs(irs->protostuff.ipcompstuff.compp->ipcomp_cpi)); + return IPSEC_RCV_OK; +} + +enum ipsec_rcv_value +ipsec_rcv_ipcomp_decomp(struct ipsec_rcv_state *irs) +{ + unsigned int flags = 0; + struct ipsec_sa *ipsp = irs->ipsp; + struct sk_buff *skb; + + skb=irs->skb; + + ipsec_xmit_dmp("ipcomp", skb->h.raw, skb->len); + + if(ipsp == NULL) { + return IPSEC_RCV_SAIDNOTFOUND; + } + + if(sysctl_ipsec_inbound_policy_check && + ((((ntohl(ipsp->ips_said.spi) & 0x0000ffff) != ntohl(irs->said.spi)) && + (ipsp->ips_encalg != ntohl(irs->said.spi)) /* this is a workaround for peer non-compliance with rfc2393 */ + ))) { + char sa2[SATOT_BUF]; + size_t sa_len2 = 0; + + sa_len2 = satot(&ipsp->ips_said, 0, sa2, sizeof(sa2)); + + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "Incoming packet with SA(IPCA):%s does not match policy SA(IPCA):%s cpi=%04x cpi->spi=%08x spi=%08x, spi->cpi=%04x for SA grouping, dropped.\n", + irs->sa_len ? irs->sa : " (error)", + ipsp != NULL ? (sa_len2 ? sa2 : " (error)") : "NULL", + ntohs(irs->protostuff.ipcompstuff.compp->ipcomp_cpi), + (__u32)ntohl(irs->said.spi), + ipsp != NULL ? (__u32)ntohl((ipsp->ips_said.spi)) : 0, + ipsp != NULL ? (__u16)(ntohl(ipsp->ips_said.spi) & 0x0000ffff) : 0); + if(irs->stats) { + irs->stats->rx_dropped++; + } + return IPSEC_RCV_SAIDNOTFOUND; + } + + ipsp->ips_comp_ratio_cbytes += ntohs(irs->ipp->tot_len); + irs->next_header = irs->protostuff.ipcompstuff.compp->ipcomp_nh; + + skb = skb_decompress(skb, ipsp, &flags); + if (!skb || flags) { + spin_unlock(&tdb_lock); + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "skb_decompress() returned error flags=%x, dropped.\n", + flags); + if (irs->stats) { + if (flags) + irs->stats->rx_errors++; + else + irs->stats->rx_dropped++; + } + return IPSEC_RCV_IPCOMPFAILED; + } + + /* make sure we update the pointer */ + irs->skb = skb; + +#ifdef NET_21 + irs->ipp = skb->nh.iph; +#else /* NET_21 */ + irs->ipp = skb->ip_hdr; +#endif /* NET_21 */ + + ipsp->ips_comp_ratio_dbytes += ntohs(irs->ipp->tot_len); + + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "packet decompressed SA(IPCA):%s cpi->spi=%08x spi=%08x, spi->cpi=%04x, nh=%d.\n", + irs->sa_len ? irs->sa : " (error)", + (__u32)ntohl(irs->said.spi), + ipsp != NULL ? (__u32)ntohl((ipsp->ips_said.spi)) : 0, + ipsp != NULL ? (__u16)(ntohl(ipsp->ips_said.spi) & 0x0000ffff) : 0, + irs->next_header); + KLIPS_IP_PRINT(debug_rcv & DB_RX_PKTRX, irs->ipp); + + return IPSEC_RCV_OK; +} + +enum ipsec_xmit_value +ipsec_xmit_ipcomp_setup(struct ipsec_xmit_state *ixs) +{ + unsigned int flags = 0; +#ifdef CONFIG_KLIPS_DEBUG + unsigned int old_tot_len = ntohs(ixs->iph->tot_len); +#endif /* CONFIG_KLIPS_DEBUG */ + + ixs->ipsp->ips_comp_ratio_dbytes += ntohs(ixs->iph->tot_len); + + ixs->skb = skb_compress(ixs->skb, ixs->ipsp, &flags); + +#ifdef NET_21 + ixs->iph = ixs->skb->nh.iph; +#else /* NET_21 */ + ixs->iph = ixs->skb->ip_hdr; +#endif /* NET_21 */ + + ixs->ipsp->ips_comp_ratio_cbytes += ntohs(ixs->iph->tot_len); + +#ifdef CONFIG_KLIPS_DEBUG + if (debug_tunnel & DB_TN_CROUT) + { + if (old_tot_len > ntohs(ixs->iph->tot_len)) + KLIPS_PRINT(debug_tunnel & DB_TN_CROUT, + "klips_debug:ipsec_xmit_encap_once: " + "packet shrunk from %d to %d bytes after compression, cpi=%04x (should be from spi=%08x, spi&0xffff=%04x.\n", + old_tot_len, ntohs(ixs->iph->tot_len), + ntohs(((struct ipcomphdr*)(((char*)ixs->iph) + ((ixs->iph->ihl) << 2)))->ipcomp_cpi), + ntohl(ixs->ipsp->ips_said.spi), + (__u16)(ntohl(ixs->ipsp->ips_said.spi) & 0x0000ffff)); + else + KLIPS_PRINT(debug_tunnel & DB_TN_CROUT, + "klips_debug:ipsec_xmit_encap_once: " + "packet did not compress (flags = %d).\n", + flags); + } +#endif /* CONFIG_KLIPS_DEBUG */ + + return IPSEC_XMIT_OK; +} + +struct xform_functions ipcomp_xform_funcs[]={ + {rcv_checks: ipsec_rcv_ipcomp_checks, + rcv_decrypt: ipsec_rcv_ipcomp_decomp, + xmit_setup: ipsec_xmit_ipcomp_setup, + xmit_headroom: 0, + xmit_needtailroom: 0, + }, +}; + +#if 0 +/* We probably don't want to install a pure IPCOMP protocol handler, but + only want to handle IPCOMP if it is encapsulated inside an ESP payload + (which is already handled) */ +#ifdef CONFIG_KLIPS_IPCOMP +struct inet_protocol comp_protocol = +{ + ipsec_rcv, /* COMP handler */ + NULL, /* COMP error control */ +#ifdef NETDEV_25 + 1, /* no policy */ +#else + 0, /* next */ + IPPROTO_COMP, /* protocol ID */ + 0, /* copy */ + NULL, /* data */ + "COMP" /* name */ +#endif +}; +#endif /* CONFIG_KLIPS_IPCOMP */ +#endif + +#endif /* CONFIG_KLIPS_IPCOMP */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ipsec_ipip.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,122 @@ +/* + * processing code for IPIP + * Copyright (C) 2003 Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +char ipsec_ipip_c_version[] = "RCSID $Id: ipsec_ipip.c,v 1.3.2.3 2006/10/06 21:39:26 paul Exp $"; +#ifndef AUTOCONF_INCLUDED +#include +#endif +#include + +#define __NO_VERSION__ +#include +#include /* printk() */ + +#include "openswan/ipsec_param.h" + +#ifdef MALLOC_SLAB +# include /* kmalloc() */ +#else /* MALLOC_SLAB */ +# include /* kmalloc() */ +#endif /* MALLOC_SLAB */ +#include /* error codes */ +#include /* size_t */ +#include /* mark_bh */ + +#include /* struct device, and other headers */ +#include /* eth_type_trans */ +#include /* struct iphdr */ +#include +#include +#ifdef SPINLOCK +# ifdef SPINLOCK_23 +# include /* *lock* */ +# else /* SPINLOCK_23 */ +# include /* *lock* */ +# endif /* SPINLOCK_23 */ +#endif /* SPINLOCK */ + +#include + +#include "openswan/radij.h" +#include "openswan/ipsec_encap.h" +#include "openswan/ipsec_sa.h" + +#include "openswan/ipsec_radij.h" +#include "openswan/ipsec_xform.h" +#include "openswan/ipsec_tunnel.h" +#include "openswan/ipsec_rcv.h" +#include "openswan/ipsec_xmit.h" + +#include "openswan/ipsec_auth.h" +#include "openswan/ipsec_ipip.h" +#include "openswan/ipsec_param.h" + +#include "openswan/ipsec_proto.h" + +enum ipsec_xmit_value +ipsec_xmit_ipip_setup(struct ipsec_xmit_state *ixs) +{ + ixs->iph->version = 4; + + switch(sysctl_ipsec_tos) { + case 0: +#ifdef NET_21 + ixs->iph->tos = ixs->skb->nh.iph->tos; +#else /* NET_21 */ + ixs->iph->tos = ixs->skb->ip_hdr->tos; +#endif /* NET_21 */ + break; + case 1: + ixs->iph->tos = 0; + break; + default: + break; + } + ixs->iph->ttl = SYSCTL_IPSEC_DEFAULT_TTL; + ixs->iph->frag_off = 0; + ixs->iph->saddr = ((struct sockaddr_in*)(ixs->ipsp->ips_addr_s))->sin_addr.s_addr; + ixs->iph->daddr = ((struct sockaddr_in*)(ixs->ipsp->ips_addr_d))->sin_addr.s_addr; + ixs->iph->protocol = IPPROTO_IPIP; + ixs->iph->ihl = sizeof(struct iphdr) >> 2; + + KLIPS_IP_SELECT_IDENT(ixs->iph, ixs->skb); + + ixs->newdst = (__u32)ixs->iph->daddr; + ixs->newsrc = (__u32)ixs->iph->saddr; + +#ifdef NET_21 + ixs->skb->h.ipiph = ixs->skb->nh.iph; +#endif /* NET_21 */ + return IPSEC_XMIT_OK; +} + +struct xform_functions ipip_xform_funcs[]={ + { rcv_checks: NULL, + rcv_setup_auth: NULL, + rcv_calc_auth: NULL, + rcv_decrypt: NULL, + + xmit_setup: ipsec_xmit_ipip_setup, + xmit_headroom: sizeof(struct iphdr), + xmit_needtailroom: 0, + }, +}; + + + + + + + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ipsec_kern24.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,74 @@ +/* + * Copyright 2005 (C) Michael Richardson + * + * This is a file of functions which are present in 2.6 kernels, + * but are not available by default in the 2.4 series. + * + * As such this code is usually from the Linux kernel, and is covered by + * GPL. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * $Id: ipsec_kern24.c,v 1.2 2005/05/20 03:19:18 mcr Exp $ + * + */ + +#include +#include +#include + +/* + * printk rate limiting, lifted from the networking subsystem. + * + * This enforces a rate limit: not more than one kernel message + * every printk_ratelimit_jiffies to make a denial-of-service + * attack impossible. + */ +static spinlock_t ratelimit_lock = SPIN_LOCK_UNLOCKED; + +int __printk_ratelimit(int ratelimit_jiffies, int ratelimit_burst) +{ + static unsigned long toks = 10*5*HZ; + static unsigned long last_msg; + static int missed; + unsigned long flags; + unsigned long now = jiffies; + + spin_lock_irqsave(&ratelimit_lock, flags); + toks += now - last_msg; + last_msg = now; + if (toks > (ratelimit_burst * ratelimit_jiffies)) + toks = ratelimit_burst * ratelimit_jiffies; + if (toks >= ratelimit_jiffies) { + int lost = missed; + missed = 0; + toks -= ratelimit_jiffies; + spin_unlock_irqrestore(&ratelimit_lock, flags); + if (lost) + printk(KERN_WARNING "printk: %d messages suppressed.\n", lost); + return 1; + } + missed++; + spin_unlock_irqrestore(&ratelimit_lock, flags); + return 0; +} + +/* minimum time in jiffies between messages */ +int printk_ratelimit_jiffies = 5*HZ; + +/* number of messages we send before ratelimiting */ +int printk_ratelimit_burst = 10; + +int printk_ratelimit(void) +{ + return __printk_ratelimit(printk_ratelimit_jiffies, + printk_ratelimit_burst); +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ipsec_life.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,273 @@ +/* + * @(#) lifetime structure utilities + * + * Copyright (C) 2001 Richard Guy Briggs + * and Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_life.c,v 1.13.10.1 2006/10/06 21:39:26 paul Exp $ + * + */ + +/* + * This provides series of utility functions for dealing with lifetime + * structures. + * + * ipsec_check_lifetime - returns -1 hard lifetime exceeded + * 0 soft lifetime exceeded + * 1 everything is okay + * based upon whether or not the count exceeds hard/soft + * + */ + +#define __NO_VERSION__ +#include +#ifndef AUTOCONF_INCLUDED +#include +#endif /* for CONFIG_IP_FORWARD */ +#include +#include /* printk() */ + +#include "openswan/ipsec_param.h" + +#include /* struct device, struct net_device_stats and other headers */ +#include /* eth_type_trans */ +#include +#include + +#include "openswan/radij.h" +#include "openswan/ipsec_life.h" +#include "openswan/ipsec_xform.h" +#include "openswan/ipsec_eroute.h" +#include "openswan/ipsec_encap.h" +#include "openswan/ipsec_radij.h" + +#include "openswan/ipsec_sa.h" +#include "openswan/ipsec_tunnel.h" +#include "openswan/ipsec_ipe4.h" +#include "openswan/ipsec_ah.h" +#include "openswan/ipsec_esp.h" + +#ifdef CONFIG_KLIPS_IPCOMP +#include "openswan/ipcomp.h" +#endif /* CONFIG_KLIPS_IPCOMP */ + +#include +#include + +#include "openswan/ipsec_proto.h" + + +enum ipsec_life_alive +ipsec_lifetime_check(struct ipsec_lifetime64 *il64, + const char *lifename, + const char *saname, + enum ipsec_life_type ilt, + enum ipsec_direction idir, + struct ipsec_sa *ips) +{ + __u64 count; + const char *dir; + + if(saname == NULL) { + saname = "unknown-SA"; + } + + if(idir == ipsec_incoming) { + dir = "incoming"; + } else { + dir = "outgoing"; + } + + + if(ilt == ipsec_life_timebased) { + count = jiffies/HZ - il64->ipl_count; + } else { + count = il64->ipl_count; + } + + if(il64->ipl_hard && + (count > il64->ipl_hard)) { + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_lifetime_check: " + "hard %s lifetime of SA:<%s%s%s> %s has been reached, SA expired, " + "%s packet dropped.\n", + lifename, + IPS_XFORM_NAME(ips), + saname, + dir); + + pfkey_expire(ips, 1); + return ipsec_life_harddied; + } + + if(il64->ipl_soft && + (count > il64->ipl_soft)) { + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_lifetime_check: " + "soft %s lifetime of SA:<%s%s%s> %s has been reached, SA expiring, " + "soft expire message sent up, %s packet still processed.\n", + lifename, + IPS_XFORM_NAME(ips), + saname, + dir); + + if(ips->ips_state != SADB_SASTATE_DYING) { + pfkey_expire(ips, 0); + } + ips->ips_state = SADB_SASTATE_DYING; + + return ipsec_life_softdied; + } + return ipsec_life_okay; +} + + +/* + * This function takes a buffer (with length), a lifetime name and type, + * and formats a string to represent the current values of the lifetime. + * + * It returns the number of bytes that the format took (or would take, + * if the buffer were large enough: snprintf semantics). + * This is used in /proc routines and in debug output. + */ +int +ipsec_lifetime_format(char *buffer, + int buflen, + char *lifename, + enum ipsec_life_type timebaselife, + struct ipsec_lifetime64 *lifetime) +{ + int len = 0; + __u64 count; + + if(timebaselife == ipsec_life_timebased) { + count = jiffies/HZ - lifetime->ipl_count; + } else { + count = lifetime->ipl_count; + } + + if(lifetime->ipl_count > 1 || + lifetime->ipl_soft || + lifetime->ipl_hard) { +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0)) + len = ipsec_snprintf(buffer, buflen, + "%s(%Lu,%Lu,%Lu)", + lifename, + count, + lifetime->ipl_soft, + lifetime->ipl_hard); +#else /* XXX high 32 bits are not displayed */ + len = ipsec_snprintf(buffer, buflen, + "%s(%lu,%lu,%lu)", + lifename, + (unsigned long)count, + (unsigned long)lifetime->ipl_soft, + (unsigned long)lifetime->ipl_hard); +#endif + } + + return len; +} + +void +ipsec_lifetime_update_hard(struct ipsec_lifetime64 *lifetime, + __u64 newvalue) +{ + if(newvalue && + (!lifetime->ipl_hard || + (newvalue < lifetime->ipl_hard))) { + lifetime->ipl_hard = newvalue; + + if(!lifetime->ipl_soft && + (lifetime->ipl_hard < lifetime->ipl_soft)) { + lifetime->ipl_soft = lifetime->ipl_hard; + } + } +} + +void +ipsec_lifetime_update_soft(struct ipsec_lifetime64 *lifetime, + __u64 newvalue) +{ + if(newvalue && + (!lifetime->ipl_soft || + (newvalue < lifetime->ipl_soft))) { + lifetime->ipl_soft = newvalue; + + if(lifetime->ipl_hard && + (lifetime->ipl_hard < lifetime->ipl_soft)) { + lifetime->ipl_soft = lifetime->ipl_hard; + } + } +} + + +/* + * $Log: ipsec_life.c,v $ + * Revision 1.13.10.1 2006/10/06 21:39:26 paul + * Fix for 2.6.18+ only include linux/config.h if AUTOCONF_INCLUDED is not + * set. This is defined through autoconf.h which is included through the + * linux kernel build macros. + * + * Revision 1.13 2004/07/10 19:11:18 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.12 2004/04/23 20:44:35 ken + * Update comments + * + * Revision 1.11 2004/04/06 02:49:26 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.10 2004/03/30 11:03:10 paul + * two more occurances of snprintf, found by Sam from a users oops msg. + * + * Revision 1.9 2003/10/31 02:27:55 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.8.4.1 2003/10/29 01:30:41 mcr + * elimited "struct sa_id". + * + * Revision 1.8 2003/02/06 02:00:10 rgb + * Fixed incorrect debugging text label + * + * Revision 1.7 2002/05/23 07:16:26 rgb + * Fixed absolute/relative reference to lifetime count printout. + * + * Revision 1.6 2002/04/24 07:55:32 mcr + * #include patches and Makefiles for post-reorg compilation. + * + * Revision 1.5 2002/04/24 07:36:28 mcr + * Moved from ./klips/net/ipsec/ipsec_life.c,v + * + * Revision 1.4 2002/01/29 17:17:55 mcr + * moved include of ipsec_param.h to after include of linux/kernel.h + * otherwise, it seems that some option that is set in ipsec_param.h + * screws up something subtle in the include path to kernel.h, and + * it complains on the snprintf() prototype. + * + * Revision 1.3 2002/01/29 02:13:17 mcr + * introduction of ipsec_kversion.h means that include of + * ipsec_param.h must preceed any decisions about what files to + * include to deal with differences in kernel source. + * + * Revision 1.2 2001/11/26 09:16:14 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.1.2.1 2001/09/25 02:25:57 mcr + * lifetime structure created and common functions created. + * + * Local variables: + * c-file-style: "linux" + * End: + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ipsec_mast.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,1099 @@ +/* + * IPSEC MAST code. + * Copyright (C) 1996, 1997 John Ioannidis. + * Copyright (C) 1998, 1999, 2000, 2001, 2002 Richard Guy Briggs. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +char ipsec_mast_c_version[] = "RCSID $Id: ipsec_mast.c,v 1.7.2.1 2006/10/06 21:39:26 paul Exp $"; + +#define __NO_VERSION__ +#include +#ifndef AUTOCONF_INCLUDED +#include +#endif /* for CONFIG_IP_FORWARD */ +#include +#include /* printk() */ + +#include "freeswan/ipsec_param.h" + +#ifdef MALLOC_SLAB +# include /* kmalloc() */ +#else /* MALLOC_SLAB */ +# include /* kmalloc() */ +#endif /* MALLOC_SLAB */ +#include /* error codes */ +#include /* size_t */ +#include /* mark_bh */ + +#include /* struct device, struct net_device_stats, dev_queue_xmit() and other headers */ +#include /* eth_type_trans */ +#include /* struct iphdr */ +#include /* struct tcphdr */ +#include /* struct udphdr */ +#include +#include +#include +#include +#undef dev_kfree_skb +#define dev_kfree_skb(a,b) kfree_skb(a) +#define PHYSDEV_TYPE +#include /* icmp_send() */ +#include +#include + +#include + +#include "freeswan/radij.h" +#include "freeswan/ipsec_life.h" +#include "freeswan/ipsec_xform.h" +#include "freeswan/ipsec_eroute.h" +#include "freeswan/ipsec_encap.h" +#include "freeswan/ipsec_radij.h" +#include "freeswan/ipsec_sa.h" +#include "freeswan/ipsec_tunnel.h" +#include "freeswan/ipsec_mast.h" +#include "freeswan/ipsec_ipe4.h" +#include "freeswan/ipsec_ah.h" +#include "freeswan/ipsec_esp.h" + +#include +#include + +#include "freeswan/ipsec_proto.h" + +int ipsec_maxdevice_count = -1; + +DEBUG_NO_STATIC int +ipsec_mast_open(struct net_device *dev) +{ + struct ipsecpriv *prv = dev->priv; + + /* + * Can't open until attached. + */ + + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_open: " + "dev = %s, prv->dev = %s\n", + dev->name, prv->dev?prv->dev->name:"NONE"); + + if (prv->dev == NULL) + return -ENODEV; + + KLIPS_INC_USE; + return 0; +} + +DEBUG_NO_STATIC int +ipsec_mast_close(struct net_device *dev) +{ + KLIPS_DEC_USE; + return 0; +} + +static inline int ipsec_mast_xmit2(struct sk_buff *skb) +{ + return ip_send(skb); +} + +enum ipsec_xmit_value +ipsec_mast_send(struct ipsec_xmit_state*ixs) +{ + /* new route/dst cache code from James Morris */ + ixs->skb->dev = ixs->physdev; + /*skb_orphan(ixs->skb);*/ + if((ixs->error = ip_route_output(&ixs->route, + ixs->skb->nh.iph->daddr, + ixs->pass ? 0 : ixs->skb->nh.iph->saddr, + RT_TOS(ixs->skb->nh.iph->tos), + ixs->physdev->iflink /* rgb: should this be 0? */))) { + ixs->stats->tx_errors++; + KLIPS_PRINT(debug_mast & DB_MAST_XMIT, + "klips_debug:ipsec_xmit_send: " + "ip_route_output failed with error code %d, rt->u.dst.dev=%s, dropped\n", + ixs->error, + ixs->route->u.dst.dev->name); + return IPSEC_XMIT_ROUTEERR; + } + if(ixs->dev == ixs->route->u.dst.dev) { + ip_rt_put(ixs->route); + /* This is recursion, drop it. */ + ixs->stats->tx_errors++; + KLIPS_PRINT(debug_mast & DB_MAST_XMIT, + "klips_debug:ipsec_xmit_send: " + "suspect recursion, dev=rt->u.dst.dev=%s, dropped\n", + ixs->dev->name); + return IPSEC_XMIT_RECURSDETECT; + } + dst_release(ixs->skb->dst); + ixs->skb->dst = &ixs->route->u.dst; + ixs->stats->tx_bytes += ixs->skb->len; + if(ixs->skb->len < ixs->skb->nh.raw - ixs->skb->data) { + ixs->stats->tx_errors++; + printk(KERN_WARNING + "klips_error:ipsec_xmit_send: " + "tried to __skb_pull nh-data=%ld, %d available. This should never happen, please report.\n", + (unsigned long)(ixs->skb->nh.raw - ixs->skb->data), + ixs->skb->len); + return IPSEC_XMIT_PUSHPULLERR; + } + __skb_pull(ixs->skb, ixs->skb->nh.raw - ixs->skb->data); +#ifdef SKB_RESET_NFCT + nf_conntrack_put(ixs->skb->nfct); + ixs->skb->nfct = NULL; +#ifdef CONFIG_NETFILTER_DEBUG + ixs->skb->nf_debug = 0; +#endif /* CONFIG_NETFILTER_DEBUG */ +#endif /* SKB_RESET_NFCT */ + KLIPS_PRINT(debug_mast & DB_MAST_XMIT, + "klips_debug:ipsec_xmit_send: " + "...done, calling ip_send() on device:%s\n", + ixs->skb->dev ? ixs->skb->dev->name : "NULL"); + KLIPS_IP_PRINT(debug_mast & DB_MAST_XMIT, ixs->skb->nh.iph); + { + int err; + + err = NF_HOOK(PF_INET, NF_IP_LOCAL_OUT, ixs->skb, NULL, ixs->route->u.dst.dev, + ipsec_mast_xmit2); + if(err != NET_XMIT_SUCCESS && err != NET_XMIT_CN) { + if(net_ratelimit()) + printk(KERN_ERR + "klips_error:ipsec_xmit_send: " + "ip_send() failed, err=%d\n", + -err); + ixs->stats->tx_errors++; + ixs->stats->tx_aborted_errors++; + ixs->skb = NULL; + return IPSEC_XMIT_IPSENDFAILURE; + } + } + ixs->stats->tx_packets++; + + ixs->skb = NULL; + + return IPSEC_XMIT_OK; +} + +void +ipsec_mast_cleanup(struct ipsec_xmit_state*ixs) +{ +#if defined(HAS_NETIF_QUEUE) || defined (HAVE_NETIF_QUEUE) + netif_wake_queue(ixs->dev); +#else /* defined(HAS_NETIF_QUEUE) || defined (HAVE_NETIF_QUEUE) */ + ixs->dev->tbusy = 0; +#endif /* defined(HAS_NETIF_QUEUE) || defined (HAVE_NETIF_QUEUE) */ + if(ixs->saved_header) { + kfree(ixs->saved_header); + } + if(ixs->skb) { + dev_kfree_skb(ixs->skb, FREE_WRITE); + } + if(ixs->oskb) { + dev_kfree_skb(ixs->oskb, FREE_WRITE); + } + if (ixs->ips.ips_ident_s.data) { + kfree(ixs->ips.ips_ident_s.data); + } + if (ixs->ips.ips_ident_d.data) { + kfree(ixs->ips.ips_ident_d.data); + } +} + +#if 0 +/* + * This function assumes it is being called from dev_queue_xmit() + * and that skb is filled properly by that function. + */ +int +ipsec_mast_start_xmit(struct sk_buff *skb, struct net_device *dev, IPsecSAref_t SAref) +{ + struct ipsec_xmit_state ixs_mem; + struct ipsec_xmit_state *ixs = &ixs_mem; + enum ipsec_xmit_value stat = IPSEC_XMIT_OK; + + /* dev could be a mast device, but should be optional, I think... */ + /* SAref is also optional, but one of the two must be present. */ + /* I wonder if it could accept no device or saref and guess? */ + +/* ipsec_xmit_sanity_check_dev(ixs); */ + + ipsec_xmit_sanity_check_skb(ixs); + + ipsec_xmit_adjust_hard_header(ixs); + + stat = ipsec_xmit_encap_bundle(ixs); + if(stat != IPSEC_XMIT_OK) { + /* SA processing failed */ + } + + ipsec_xmit_hard_header_restore(); +} +#endif + +DEBUG_NO_STATIC struct net_device_stats * +ipsec_mast_get_stats(struct net_device *dev) +{ + return &(((struct ipsecpriv *)(dev->priv))->mystats); +} + +/* + * Revectored calls. + * For each of these calls, a field exists in our private structure. + */ + +DEBUG_NO_STATIC int +ipsec_mast_hard_header(struct sk_buff *skb, struct net_device *dev, + unsigned short type, void *daddr, void *saddr, unsigned len) +{ + struct ipsecpriv *prv = dev->priv; + struct net_device *tmp; + int ret; + struct net_device_stats *stats; /* This device's statistics */ + + if(skb == NULL) { + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_hard_header: " + "no skb...\n"); + return -ENODATA; + } + + if(dev == NULL) { + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_hard_header: " + "no device...\n"); + return -ENODEV; + } + + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_hard_header: " + "skb->dev=%s dev=%s.\n", + skb->dev ? skb->dev->name : "NULL", + dev->name); + + if(prv == NULL) { + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_hard_header: " + "no private space associated with dev=%s\n", + dev->name ? dev->name : "NULL"); + return -ENODEV; + } + + stats = (struct net_device_stats *) &(prv->mystats); + + if(prv->dev == NULL) { + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_hard_header: " + "no physical device associated with dev=%s\n", + dev->name ? dev->name : "NULL"); + stats->tx_dropped++; + return -ENODEV; + } + + /* check if we have to send a IPv6 packet. It might be a Router + Solicitation, where the building of the packet happens in + reverse order: + 1. ll hdr, + 2. IPv6 hdr, + 3. ICMPv6 hdr + -> skb->nh.raw is still uninitialized when this function is + called!! If this is no IPv6 packet, we can print debugging + messages, otherwise we skip all debugging messages and just + build the ll header */ + if(type != ETH_P_IPV6) { + /* execute this only, if we don't have to build the + header for a IPv6 packet */ + if(!prv->hard_header) { + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_hard_header: " + "physical device has been detached, packet dropped 0p%p->0p%p len=%d type=%d dev=%s->NULL ", + saddr, + daddr, + len, + type, + dev->name); + KLIPS_PRINTMORE(debug_mast & DB_MAST_REVEC, + "ip=%08x->%08x\n", + (__u32)ntohl(skb->nh.iph->saddr), + (__u32)ntohl(skb->nh.iph->daddr) ); + stats->tx_dropped++; + return -ENODEV; + } + +#define da ((struct net_device *)(prv->dev))->dev_addr + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_hard_header: " + "Revectored 0p%p->0p%p len=%d type=%d dev=%s->%s dev_addr=%02x:%02x:%02x:%02x:%02x:%02x ", + saddr, + daddr, + len, + type, + dev->name, + prv->dev->name, + da[0], da[1], da[2], da[3], da[4], da[5]); + KLIPS_PRINTMORE(debug_mast & DB_MAST_REVEC, + "ip=%08x->%08x\n", + (__u32)ntohl(skb->nh.iph->saddr), + (__u32)ntohl(skb->nh.iph->daddr) ); + } else { + KLIPS_PRINT(debug_mast, + "klips_debug:ipsec_mast_hard_header: " + "is IPv6 packet, skip debugging messages, only revector and build linklocal header.\n"); + } + tmp = skb->dev; + skb->dev = prv->dev; + ret = prv->hard_header(skb, prv->dev, type, (void *)daddr, (void *)saddr, len); + skb->dev = tmp; + return ret; +} + +DEBUG_NO_STATIC int +ipsec_mast_rebuild_header(struct sk_buff *skb) +{ + struct ipsecpriv *prv = skb->dev->priv; + struct net_device *tmp; + int ret; + struct net_device_stats *stats; /* This device's statistics */ + + if(skb->dev == NULL) { + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_rebuild_header: " + "no device..."); + return -ENODEV; + } + + if(prv == NULL) { + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_rebuild_header: " + "no private space associated with dev=%s", + skb->dev->name ? skb->dev->name : "NULL"); + return -ENODEV; + } + + stats = (struct net_device_stats *) &(prv->mystats); + + if(prv->dev == NULL) { + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_rebuild_header: " + "no physical device associated with dev=%s", + skb->dev->name ? skb->dev->name : "NULL"); + stats->tx_dropped++; + return -ENODEV; + } + + if(!prv->rebuild_header) { + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_rebuild_header: " + "physical device has been detached, packet dropped skb->dev=%s->NULL ", + skb->dev->name); + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "ip=%08x->%08x\n", + (__u32)ntohl(skb->nh.iph->saddr), + (__u32)ntohl(skb->nh.iph->daddr) ); + stats->tx_dropped++; + return -ENODEV; + } + + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast: " + "Revectored rebuild_header dev=%s->%s ", + skb->dev->name, prv->dev->name); + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "ip=%08x->%08x\n", + (__u32)ntohl(skb->nh.iph->saddr), + (__u32)ntohl(skb->nh.iph->daddr) ); + tmp = skb->dev; + skb->dev = prv->dev; + + ret = prv->rebuild_header(skb); + skb->dev = tmp; + return ret; +} + +DEBUG_NO_STATIC int +ipsec_mast_set_mac_address(struct net_device *dev, void *addr) +{ + struct ipsecpriv *prv = dev->priv; + + struct net_device_stats *stats; /* This device's statistics */ + + if(dev == NULL) { + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_set_mac_address: " + "no device..."); + return -ENODEV; + } + + if(prv == NULL) { + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_set_mac_address: " + "no private space associated with dev=%s", + dev->name ? dev->name : "NULL"); + return -ENODEV; + } + + stats = (struct net_device_stats *) &(prv->mystats); + + if(prv->dev == NULL) { + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_set_mac_address: " + "no physical device associated with dev=%s", + dev->name ? dev->name : "NULL"); + stats->tx_dropped++; + return -ENODEV; + } + + if(!prv->set_mac_address) { + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_set_mac_address: " + "physical device has been detached, cannot set - skb->dev=%s->NULL\n", + dev->name); + return -ENODEV; + } + + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_set_mac_address: " + "Revectored dev=%s->%s addr=0p%p\n", + dev->name, prv->dev->name, addr); + return prv->set_mac_address(prv->dev, addr); + +} + +DEBUG_NO_STATIC void +ipsec_mast_cache_update(struct hh_cache *hh, struct net_device *dev, unsigned char * haddr) +{ + struct ipsecpriv *prv = dev->priv; + + struct net_device_stats *stats; /* This device's statistics */ + + if(dev == NULL) { + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_cache_update: " + "no device..."); + return; + } + + if(prv == NULL) { + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_cache_update: " + "no private space associated with dev=%s", + dev->name ? dev->name : "NULL"); + return; + } + + stats = (struct net_device_stats *) &(prv->mystats); + + if(prv->dev == NULL) { + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_cache_update: " + "no physical device associated with dev=%s", + dev->name ? dev->name : "NULL"); + stats->tx_dropped++; + return; + } + + if(!prv->header_cache_update) { + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_cache_update: " + "physical device has been detached, cannot set - skb->dev=%s->NULL\n", + dev->name); + return; + } + + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast: " + "Revectored cache_update\n"); + prv->header_cache_update(hh, prv->dev, haddr); + return; +} + +DEBUG_NO_STATIC int +ipsec_mast_neigh_setup(struct neighbour *n) +{ + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_neigh_setup:\n"); + + if (n->nud_state == NUD_NONE) { + n->ops = &arp_broken_ops; + n->output = n->ops->output; + } + return 0; +} + +DEBUG_NO_STATIC int +ipsec_mast_neigh_setup_dev(struct net_device *dev, struct neigh_parms *p) +{ + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_neigh_setup_dev: " + "setting up %s\n", + dev ? dev->name : "NULL"); + + if (p->tbl->family == AF_INET) { + p->neigh_setup = ipsec_mast_neigh_setup; + p->ucast_probes = 0; + p->mcast_probes = 0; + } + return 0; +} + +/* + * We call the attach routine to attach another device. + */ + +DEBUG_NO_STATIC int +ipsec_mast_attach(struct net_device *dev, struct net_device *physdev) +{ + int i; + struct ipsecpriv *prv = dev->priv; + + if(dev == NULL) { + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_attach: " + "no device..."); + return -ENODEV; + } + + if(prv == NULL) { + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_attach: " + "no private space associated with dev=%s", + dev->name ? dev->name : "NULL"); + return -ENODATA; + } + + prv->dev = physdev; + prv->hard_start_xmit = physdev->hard_start_xmit; + prv->get_stats = physdev->get_stats; + + if (physdev->hard_header) { + prv->hard_header = physdev->hard_header; + dev->hard_header = ipsec_mast_hard_header; + } else + dev->hard_header = NULL; + + if (physdev->rebuild_header) { + prv->rebuild_header = physdev->rebuild_header; + dev->rebuild_header = ipsec_mast_rebuild_header; + } else + dev->rebuild_header = NULL; + + if (physdev->set_mac_address) { + prv->set_mac_address = physdev->set_mac_address; + dev->set_mac_address = ipsec_mast_set_mac_address; + } else + dev->set_mac_address = NULL; + + if (physdev->header_cache_update) { + prv->header_cache_update = physdev->header_cache_update; + dev->header_cache_update = ipsec_mast_cache_update; + } else + dev->header_cache_update = NULL; + + dev->hard_header_len = physdev->hard_header_len; + +/* prv->neigh_setup = physdev->neigh_setup; */ + dev->neigh_setup = ipsec_mast_neigh_setup_dev; + dev->mtu = 16260; /* 0xfff0; */ /* dev->mtu; */ + prv->mtu = physdev->mtu; + +#ifdef PHYSDEV_TYPE + dev->type = physdev->type; /* ARPHRD_MAST; */ +#endif /* PHYSDEV_TYPE */ + + dev->addr_len = physdev->addr_len; + for (i=0; iaddr_len; i++) { + dev->dev_addr[i] = physdev->dev_addr[i]; + } +#ifdef CONFIG_KLIPS_DEBUG + if(debug_mast & DB_MAST_INIT) { + printk(KERN_INFO "klips_debug:ipsec_mast_attach: " + "physical device %s being attached has HW address: %2x", + physdev->name, physdev->dev_addr[0]); + for (i=1; i < physdev->addr_len; i++) { + printk(":%02x", physdev->dev_addr[i]); + } + printk("\n"); + } +#endif /* CONFIG_KLIPS_DEBUG */ + + return 0; +} + +/* + * We call the detach routine to detach the ipsec mast from another device. + */ + +DEBUG_NO_STATIC int +ipsec_mast_detach(struct net_device *dev) +{ + int i; + struct ipsecpriv *prv = dev->priv; + + if(dev == NULL) { + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_detach: " + "no device..."); + return -ENODEV; + } + + if(prv == NULL) { + KLIPS_PRINT(debug_mast & DB_MAST_REVEC, + "klips_debug:ipsec_mast_detach: " + "no private space associated with dev=%s", + dev->name ? dev->name : "NULL"); + return -ENODATA; + } + + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_detach: " + "physical device %s being detached from virtual device %s\n", + prv->dev ? prv->dev->name : "NULL", + dev->name); + + prv->dev = NULL; + prv->hard_start_xmit = NULL; + prv->get_stats = NULL; + + prv->hard_header = NULL; +#ifdef DETACH_AND_DOWN + dev->hard_header = NULL; +#endif /* DETACH_AND_DOWN */ + + prv->rebuild_header = NULL; +#ifdef DETACH_AND_DOWN + dev->rebuild_header = NULL; +#endif /* DETACH_AND_DOWN */ + + prv->set_mac_address = NULL; +#ifdef DETACH_AND_DOWN + dev->set_mac_address = NULL; +#endif /* DETACH_AND_DOWN */ + + prv->header_cache_update = NULL; +#ifdef DETACH_AND_DOWN + dev->header_cache_update = NULL; +#endif /* DETACH_AND_DOWN */ + +#ifdef DETACH_AND_DOWN + dev->neigh_setup = NULL; +#endif /* DETACH_AND_DOWN */ + + dev->hard_header_len = 0; +#ifdef DETACH_AND_DOWN + dev->mtu = 0; +#endif /* DETACH_AND_DOWN */ + prv->mtu = 0; + for (i=0; idev_addr[i] = 0; + } + dev->addr_len = 0; +#ifdef PHYSDEV_TYPE + dev->type = ARPHRD_VOID; /* ARPHRD_MAST; */ +#endif /* PHYSDEV_TYPE */ + + return 0; +} + +/* + * We call the clear routine to detach all ipsec masts from other devices. + */ +DEBUG_NO_STATIC int +ipsec_mast_clear(void) +{ + int i; + struct net_device *ipsecdev = NULL, *prvdev; + struct ipsecpriv *prv; + char name[9]; + int ret; + + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_clear: .\n"); + + for(i = 0; i < IPSEC_NUM_IF; i++) { + sprintf(name, IPSEC_DEV_FORMAT, i); + if((ipsecdev = ipsec_dev_get(name)) != NULL) { + if((prv = (struct ipsecpriv *)(ipsecdev->priv))) { + prvdev = (struct net_device *)(prv->dev); + if(prvdev) { + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_clear: " + "physical device for device %s is %s\n", + name, prvdev->name); + if((ret = ipsec_mast_detach(ipsecdev))) { + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_clear: " + "error %d detatching device %s from device %s.\n", + ret, name, prvdev->name); + return ret; + } + } + } + } + } + return 0; +} + +DEBUG_NO_STATIC int +ipsec_mast_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +{ + struct ipsecmastconf *cf = (struct ipsecmastconf *)&ifr->ifr_data; + struct ipsecpriv *prv = dev->priv; + struct net_device *them; /* physical device */ +#ifdef CONFIG_IP_ALIAS + char *colon; + char realphysname[IFNAMSIZ]; +#endif /* CONFIG_IP_ALIAS */ + + if(dev == NULL) { + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_ioctl: " + "device not supplied.\n"); + return -ENODEV; + } + + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_ioctl: " + "tncfg service call #%d for dev=%s\n", + cmd, + dev->name ? dev->name : "NULL"); + switch (cmd) { + /* attach a virtual ipsec? device to a physical device */ + case IPSEC_SET_DEV: + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_ioctl: " + "calling ipsec_mast_attatch...\n"); +#ifdef CONFIG_IP_ALIAS + /* If this is an IP alias interface, get its real physical name */ + strncpy(realphysname, cf->cf_name, IFNAMSIZ); + realphysname[IFNAMSIZ-1] = 0; + colon = strchr(realphysname, ':'); + if (colon) *colon = 0; + them = ipsec_dev_get(realphysname); +#else /* CONFIG_IP_ALIAS */ + them = ipsec_dev_get(cf->cf_name); +#endif /* CONFIG_IP_ALIAS */ + + if (them == NULL) { + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_ioctl: " + "physical device %s requested is null\n", + cf->cf_name); + return -ENXIO; + } + +#if 0 + if (them->flags & IFF_UP) { + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_ioctl: " + "physical device %s requested is not up.\n", + cf->cf_name); + return -ENXIO; + } +#endif + + if (prv && prv->dev) { + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_ioctl: " + "virtual device is already connected to %s.\n", + prv->dev->name ? prv->dev->name : "NULL"); + return -EBUSY; + } + return ipsec_mast_attach(dev, them); + + case IPSEC_DEL_DEV: + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_ioctl: " + "calling ipsec_mast_detatch.\n"); + if (! prv->dev) { + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_ioctl: " + "physical device not connected.\n"); + return -ENODEV; + } + return ipsec_mast_detach(dev); + + case IPSEC_CLR_DEV: + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_ioctl: " + "calling ipsec_mast_clear.\n"); + return ipsec_mast_clear(); + + default: + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_ioctl: " + "unknown command %d.\n", + cmd); + return -EOPNOTSUPP; + } +} + +int +ipsec_mast_device_event(struct notifier_block *unused, unsigned long event, void *ptr) +{ + struct net_device *dev = ptr; + struct net_device *ipsec_dev; + struct ipsecpriv *priv; + char name[9]; + int i; + + if (dev == NULL) { + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_device_event: " + "dev=NULL for event type %ld.\n", + event); + return(NOTIFY_DONE); + } + + /* check for loopback devices */ + if (dev && (dev->flags & IFF_LOOPBACK)) { + return(NOTIFY_DONE); + } + + switch (event) { + case NETDEV_DOWN: + /* look very carefully at the scope of these compiler + directives before changing anything... -- RGB */ + + case NETDEV_UNREGISTER: + switch (event) { + case NETDEV_DOWN: + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_device_event: " + "NETDEV_DOWN dev=%s flags=%x\n", + dev->name, + dev->flags); + if(strncmp(dev->name, "ipsec", strlen("ipsec")) == 0) { + printk(KERN_CRIT "IPSEC EVENT: KLIPS device %s shut down.\n", + dev->name); + } + break; + case NETDEV_UNREGISTER: + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_device_event: " + "NETDEV_UNREGISTER dev=%s flags=%x\n", + dev->name, + dev->flags); + break; + } + + /* find the attached physical device and detach it. */ + for(i = 0; i < IPSEC_NUM_IF; i++) { + sprintf(name, IPSEC_DEV_FORMAT, i); + ipsec_dev = ipsec_dev_get(name); + if(ipsec_dev) { + priv = (struct ipsecpriv *)(ipsec_dev->priv); + if(priv) { + ; + if(((struct net_device *)(priv->dev)) == dev) { + /* dev_close(ipsec_dev); */ + /* return */ ipsec_mast_detach(ipsec_dev); + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_device_event: " + "device '%s' has been detached.\n", + ipsec_dev->name); + break; + } + } else { + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_device_event: " + "device '%s' has no private data space!\n", + ipsec_dev->name); + } + } + } + break; + case NETDEV_UP: + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_device_event: " + "NETDEV_UP dev=%s\n", + dev->name); + break; + case NETDEV_REBOOT: + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_device_event: " + "NETDEV_REBOOT dev=%s\n", + dev->name); + break; + case NETDEV_CHANGE: + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_device_event: " + "NETDEV_CHANGE dev=%s flags=%x\n", + dev->name, + dev->flags); + break; + case NETDEV_REGISTER: + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_device_event: " + "NETDEV_REGISTER dev=%s\n", + dev->name); + break; + case NETDEV_CHANGEMTU: + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_device_event: " + "NETDEV_CHANGEMTU dev=%s to mtu=%d\n", + dev->name, + dev->mtu); + break; + case NETDEV_CHANGEADDR: + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_device_event: " + "NETDEV_CHANGEADDR dev=%s\n", + dev->name); + break; + case NETDEV_GOING_DOWN: + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_device_event: " + "NETDEV_GOING_DOWN dev=%s\n", + dev->name); + break; + case NETDEV_CHANGENAME: + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_device_event: " + "NETDEV_CHANGENAME dev=%s\n", + dev->name); + break; + default: + KLIPS_PRINT(debug_mast & DB_MAST_INIT, + "klips_debug:ipsec_mast_device_event: " + "event type %ld unrecognised for dev=%s\n", + event, + dev->name); + break; + } + return NOTIFY_DONE; +} + +/* + * Called when an ipsec mast device is initialized. + * The ipsec mast device structure is passed to us. + */ + +int +ipsec_mast_init(struct net_device *dev) +{ + int i; + + KLIPS_PRINT(debug_mast, + "klips_debug:ipsec_mast_init: " + "allocating %lu bytes initialising device: %s\n", + (unsigned long) sizeof(struct ipsecpriv), + dev->name ? dev->name : "NULL"); + + /* Add our mast functions to the device */ + dev->open = ipsec_mast_open; + dev->stop = ipsec_mast_close; + dev->hard_start_xmit = ipsec_mast_start_xmit; + dev->get_stats = ipsec_mast_get_stats; + + dev->priv = kmalloc(sizeof(struct ipsecpriv), GFP_KERNEL); + if (dev->priv == NULL) + return -ENOMEM; + memset((caddr_t)(dev->priv), 0, sizeof(struct ipsecpriv)); + + for(i = 0; i < sizeof(zeroes); i++) { + ((__u8*)(zeroes))[i] = 0; + } + + dev->set_multicast_list = NULL; + dev->do_ioctl = ipsec_mast_ioctl; + dev->hard_header = NULL; + dev->rebuild_header = NULL; + dev->set_mac_address = NULL; + dev->header_cache_update= NULL; + dev->neigh_setup = ipsec_mast_neigh_setup_dev; + dev->hard_header_len = 0; + dev->mtu = 0; + dev->addr_len = 0; + dev->type = ARPHRD_VOID; /* ARPHRD_MAST; */ /* ARPHRD_ETHER; */ + dev->tx_queue_len = 10; /* Small queue */ + memset((caddr_t)(dev->broadcast),0xFF, ETH_ALEN); /* what if this is not attached to ethernet? */ + + /* New-style flags. */ + dev->flags = IFF_NOARP /* 0 */ /* Petr Novak */; + dev_init_buffers(dev); + + /* We're done. Have I forgotten anything? */ + return 0; +} + +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ +/* Module specific interface (but it links with the rest of IPSEC) */ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +int +ipsec_mast_probe(struct net_device *dev) +{ + ipsec_mast_init(dev); + return 0; +} + +int +ipsec_mast_init_devices(void) +{ + return 0; +} + +/* void */ +int +ipsec_mast_cleanup_devices(void) +{ + int error = 0; + int i; + char name[10]; + struct net_device *dev_mast; + + for(i = 0; i < ipsec_mastdevice_count; i++) { + sprintf(name, MAST_DEV_FORMAT, i); + if((dev_mast = ipsec_dev_get(name)) == NULL) { + break; + } + unregister_netdev(dev_mast); + kfree(dev_mast->priv); + dev_mast->priv=NULL; + } + return error; +} + +/* + * $Log: ipsec_mast.c,v $ + * Revision 1.7.2.1 2006/10/06 21:39:26 paul + * Fix for 2.6.18+ only include linux/config.h if AUTOCONF_INCLUDED is not + * set. This is defined through autoconf.h which is included through the + * linux kernel build macros. + * + * Revision 1.7 2005/04/29 05:10:22 mcr + * removed from extraenous includes to make unit testing easier. + * + * Revision 1.6 2004/12/03 21:25:57 mcr + * compile time fixes for running on 2.6. + * still experimental. + * + * Revision 1.5 2004/08/03 18:19:08 mcr + * in 2.6, use "net_device" instead of #define device->net_device. + * this probably breaks 2.0 compiles. + * + * Revision 1.4 2004/07/10 19:11:18 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.3 2003/10/31 02:27:55 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.2.4.1 2003/10/29 01:30:41 mcr + * elimited "struct sa_id". + * + * Revision 1.2 2003/06/22 20:06:17 mcr + * refactored mast code still had lots of ipsecX junk in it. + * + * Revision 1.1 2003/02/12 19:31:12 rgb + * Refactored from ipsec_tunnel.c + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ipsec_md5c.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,453 @@ +/* + * RCSID $Id: ipsec_md5c.c,v 1.10 2005/04/15 01:25:57 mcr Exp $ + */ + +/* + * The rest of the code is derived from MD5C.C by RSADSI. Minor cosmetic + * changes to accomodate it in the kernel by ji. + */ + +#include +#include + +#include "openswan/ipsec_md5h.h" + +/* MD5C.C - RSA Data Security, Inc., MD5 message-digest algorithm + */ + +/* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All +rights reserved. + +License to copy and use this software is granted provided that it +is identified as the "RSA Data Security, Inc. MD5 Message-Digest +Algorithm" in all material mentioning or referencing this software +or this function. + +License is also granted to make and use derivative works provided +that such works are identified as "derived from the RSA Data +Security, Inc. MD5 Message-Digest Algorithm" in all material +mentioning or referencing the derived work. + +RSA Data Security, Inc. makes no representations concerning either +the merchantability of this software or the suitability of this +software for any particular purpose. It is provided "as is" +without express or implied warranty of any kind. + +These notices must be retained in any copies of any part of this +documentation and/or software. + */ + +/* + * Additions by JI + * + * HAVEMEMCOPY is defined if mem* routines are available + * + * HAVEHTON is defined if htons() and htonl() can be used + * for big/little endian conversions + * + */ + +#define HAVEMEMCOPY +#ifdef __LITTLE_ENDIAN +#define LITTLENDIAN +#endif +#ifdef __BIG_ENDIAN +#define BIGENDIAN +#endif + +/* Constants for MD5Transform routine. + */ + +#define S11 7 +#define S12 12 +#define S13 17 +#define S14 22 +#define S21 5 +#define S22 9 +#define S23 14 +#define S24 20 +#define S31 4 +#define S32 11 +#define S33 16 +#define S34 23 +#define S41 6 +#define S42 10 +#define S43 15 +#define S44 21 + +static void MD5Transform PROTO_LIST ((UINT4 [4], unsigned char [64])); + +#ifdef LITTLEENDIAN +#define Encode MD5_memcpy +#define Decode MD5_memcpy +#else +static void Encode PROTO_LIST + ((unsigned char *, UINT4 *, unsigned int)); +static void Decode PROTO_LIST + ((UINT4 *, unsigned char *, unsigned int)); +#endif + +#ifdef HAVEMEMCOPY +/* no need to include here; defines these */ +#define MD5_memcpy memcpy +#define MD5_memset memset +#else +#ifdef HAVEBCOPY +#define MD5_memcpy(_a,_b,_c) bcopy((_b),(_a),(_c)) +#define MD5_memset(_a,_b,_c) bzero((_a),(_c)) +#else +static void MD5_memcpy PROTO_LIST ((POINTER, POINTER, unsigned int)); +static void MD5_memset PROTO_LIST ((POINTER, int, unsigned int)); +#endif +#endif +static unsigned char PADDING[64] = { + 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + +/* F, G, H and I are basic MD5 functions. + */ +#define F(x, y, z) (((x) & (y)) | ((~x) & (z))) +#define G(x, y, z) (((x) & (z)) | ((y) & (~z))) +#define H(x, y, z) ((x) ^ (y) ^ (z)) +#define I(x, y, z) ((y) ^ ((x) | (~z))) + +/* ROTATE_LEFT rotates x left n bits. + */ +#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n)))) + +/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4. +Rotation is separate from addition to prevent recomputation. + */ +#define FF(a, b, c, d, x, s, ac) { \ + (a) += F ((b), (c), (d)) + (x) + (UINT4)(ac); \ + (a) = ROTATE_LEFT ((a), (s)); \ + (a) += (b); \ + } +#define GG(a, b, c, d, x, s, ac) { \ + (a) += G ((b), (c), (d)) + (x) + (UINT4)(ac); \ + (a) = ROTATE_LEFT ((a), (s)); \ + (a) += (b); \ + } +#define HH(a, b, c, d, x, s, ac) { \ + (a) += H ((b), (c), (d)) + (x) + (UINT4)(ac); \ + (a) = ROTATE_LEFT ((a), (s)); \ + (a) += (b); \ + } +#define II(a, b, c, d, x, s, ac) { \ + (a) += I ((b), (c), (d)) + (x) + (UINT4)(ac); \ + (a) = ROTATE_LEFT ((a), (s)); \ + (a) += (b); \ + } + +/* + * MD5 initialization. Begins an MD5 operation, writing a new context. + */ +void osMD5Init(void *vcontext) +{ + MD5_CTX *context = vcontext; + + context->count[0] = context->count[1] = 0; + /* Load magic initialization constants.*/ + context->state[0] = 0x67452301; + context->state[1] = 0xefcdab89; + context->state[2] = 0x98badcfe; + context->state[3] = 0x10325476; +} + +/* MD5 block update operation. Continues an MD5 message-digest + operation, processing another message block, and updating the + context. + */ +void osMD5Update (vcontext, input, inputLen) + void *vcontext; + unsigned char *input; /* input block */ + __u32 inputLen; /* length of input block */ +{ + MD5_CTX *context = vcontext; + __u32 i; + unsigned int index, partLen; + + /* Compute number of bytes mod 64 */ + index = (unsigned int)((context->count[0] >> 3) & 0x3F); + + /* Update number of bits */ + if ((context->count[0] += ((UINT4)inputLen << 3)) + < ((UINT4)inputLen << 3)) + context->count[1]++; + context->count[1] += ((UINT4)inputLen >> 29); + + partLen = 64 - index; + + /* Transform as many times as possible. +*/ + if (inputLen >= partLen) { + MD5_memcpy + ((POINTER)&context->buffer[index], (POINTER)input, partLen); + MD5Transform (context->state, context->buffer); + + for (i = partLen; i + 63 < inputLen; i += 64) + MD5Transform (context->state, &input[i]); + + index = 0; + } + else + i = 0; + + /* Buffer remaining input */ + MD5_memcpy + ((POINTER)&context->buffer[index], (POINTER)&input[i], + inputLen-i); +} + +/* MD5 finalization. Ends an MD5 message-digest operation, writing the + the message digest and zeroizing the context. + */ +void osMD5Final (digest, vcontext) +unsigned char digest[16]; /* message digest */ +void *vcontext; /* context */ +{ + MD5_CTX *context = vcontext; + unsigned char bits[8]; + unsigned int index, padLen; + + /* Save number of bits */ + Encode (bits, context->count, 8); + + /* Pad out to 56 mod 64. +*/ + index = (unsigned int)((context->count[0] >> 3) & 0x3f); + padLen = (index < 56) ? (56 - index) : (120 - index); + osMD5Update (context, PADDING, padLen); + + /* Append length (before padding) */ + osMD5Update (context, bits, 8); + + if (digest != NULL) /* Bill Simpson's padding */ + { + /* store state in digest */ + Encode (digest, context->state, 16); + + /* Zeroize sensitive information. + */ + MD5_memset ((POINTER)context, 0, sizeof (*context)); + } +} + +/* MD5 basic transformation. Transforms state based on block. + */ +static void MD5Transform (state, block) +UINT4 state[4]; +unsigned char block[64]; +{ + UINT4 a = state[0], b = state[1], c = state[2], d = state[3], x[16]; + + Decode (x, block, 64); + + /* Round 1 */ + FF (a, b, c, d, x[ 0], S11, 0xd76aa478); /* 1 */ + FF (d, a, b, c, x[ 1], S12, 0xe8c7b756); /* 2 */ + FF (c, d, a, b, x[ 2], S13, 0x242070db); /* 3 */ + FF (b, c, d, a, x[ 3], S14, 0xc1bdceee); /* 4 */ + FF (a, b, c, d, x[ 4], S11, 0xf57c0faf); /* 5 */ + FF (d, a, b, c, x[ 5], S12, 0x4787c62a); /* 6 */ + FF (c, d, a, b, x[ 6], S13, 0xa8304613); /* 7 */ + FF (b, c, d, a, x[ 7], S14, 0xfd469501); /* 8 */ + FF (a, b, c, d, x[ 8], S11, 0x698098d8); /* 9 */ + FF (d, a, b, c, x[ 9], S12, 0x8b44f7af); /* 10 */ + FF (c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */ + FF (b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */ + FF (a, b, c, d, x[12], S11, 0x6b901122); /* 13 */ + FF (d, a, b, c, x[13], S12, 0xfd987193); /* 14 */ + FF (c, d, a, b, x[14], S13, 0xa679438e); /* 15 */ + FF (b, c, d, a, x[15], S14, 0x49b40821); /* 16 */ + + /* Round 2 */ + GG (a, b, c, d, x[ 1], S21, 0xf61e2562); /* 17 */ + GG (d, a, b, c, x[ 6], S22, 0xc040b340); /* 18 */ + GG (c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */ + GG (b, c, d, a, x[ 0], S24, 0xe9b6c7aa); /* 20 */ + GG (a, b, c, d, x[ 5], S21, 0xd62f105d); /* 21 */ + GG (d, a, b, c, x[10], S22, 0x2441453); /* 22 */ + GG (c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */ + GG (b, c, d, a, x[ 4], S24, 0xe7d3fbc8); /* 24 */ + GG (a, b, c, d, x[ 9], S21, 0x21e1cde6); /* 25 */ + GG (d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */ + GG (c, d, a, b, x[ 3], S23, 0xf4d50d87); /* 27 */ + GG (b, c, d, a, x[ 8], S24, 0x455a14ed); /* 28 */ + GG (a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */ + GG (d, a, b, c, x[ 2], S22, 0xfcefa3f8); /* 30 */ + GG (c, d, a, b, x[ 7], S23, 0x676f02d9); /* 31 */ + GG (b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */ + + /* Round 3 */ + HH (a, b, c, d, x[ 5], S31, 0xfffa3942); /* 33 */ + HH (d, a, b, c, x[ 8], S32, 0x8771f681); /* 34 */ + HH (c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */ + HH (b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */ + HH (a, b, c, d, x[ 1], S31, 0xa4beea44); /* 37 */ + HH (d, a, b, c, x[ 4], S32, 0x4bdecfa9); /* 38 */ + HH (c, d, a, b, x[ 7], S33, 0xf6bb4b60); /* 39 */ + HH (b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */ + HH (a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */ + HH (d, a, b, c, x[ 0], S32, 0xeaa127fa); /* 42 */ + HH (c, d, a, b, x[ 3], S33, 0xd4ef3085); /* 43 */ + HH (b, c, d, a, x[ 6], S34, 0x4881d05); /* 44 */ + HH (a, b, c, d, x[ 9], S31, 0xd9d4d039); /* 45 */ + HH (d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */ + HH (c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */ + HH (b, c, d, a, x[ 2], S34, 0xc4ac5665); /* 48 */ + + /* Round 4 */ + II (a, b, c, d, x[ 0], S41, 0xf4292244); /* 49 */ + II (d, a, b, c, x[ 7], S42, 0x432aff97); /* 50 */ + II (c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */ + II (b, c, d, a, x[ 5], S44, 0xfc93a039); /* 52 */ + II (a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */ + II (d, a, b, c, x[ 3], S42, 0x8f0ccc92); /* 54 */ + II (c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */ + II (b, c, d, a, x[ 1], S44, 0x85845dd1); /* 56 */ + II (a, b, c, d, x[ 8], S41, 0x6fa87e4f); /* 57 */ + II (d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */ + II (c, d, a, b, x[ 6], S43, 0xa3014314); /* 59 */ + II (b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */ + II (a, b, c, d, x[ 4], S41, 0xf7537e82); /* 61 */ + II (d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */ + II (c, d, a, b, x[ 2], S43, 0x2ad7d2bb); /* 63 */ + II (b, c, d, a, x[ 9], S44, 0xeb86d391); /* 64 */ + + state[0] += a; + state[1] += b; + state[2] += c; + state[3] += d; + + /* Zeroize sensitive information. +*/ + MD5_memset ((POINTER)x, 0, sizeof (x)); +} + +#ifndef LITTLEENDIAN + +/* Encodes input (UINT4) into output (unsigned char). Assumes len is + a multiple of 4. + */ +static void Encode (output, input, len) +unsigned char *output; +UINT4 *input; +unsigned int len; +{ + unsigned int i, j; + + for (i = 0, j = 0; j < len; i++, j += 4) { + output[j] = (unsigned char)(input[i] & 0xff); + output[j+1] = (unsigned char)((input[i] >> 8) & 0xff); + output[j+2] = (unsigned char)((input[i] >> 16) & 0xff); + output[j+3] = (unsigned char)((input[i] >> 24) & 0xff); + } +} + +/* Decodes input (unsigned char) into output (UINT4). Assumes len is + a multiple of 4. + */ +static void Decode (output, input, len) +UINT4 *output; +unsigned char *input; +unsigned int len; +{ + unsigned int i, j; + + for (i = 0, j = 0; j < len; i++, j += 4) + output[i] = ((UINT4)input[j]) | (((UINT4)input[j+1]) << 8) | + (((UINT4)input[j+2]) << 16) | (((UINT4)input[j+3]) << 24); +} + +#endif + +#ifndef HAVEMEMCOPY +#ifndef HAVEBCOPY +/* Note: Replace "for loop" with standard memcpy if possible. + */ + +static void MD5_memcpy (output, input, len) +POINTER output; +POINTER input; +unsigned int len; +{ + unsigned int i; + + for (i = 0; i < len; i++) + + output[i] = input[i]; +} + +/* Note: Replace "for loop" with standard memset if possible. + */ + +static void MD5_memset (output, value, len) +POINTER output; +int value; +unsigned int len; +{ + unsigned int i; + + for (i = 0; i < len; i++) + ((char *)output)[i] = (char)value; +} +#endif +#endif + +/* + * $Log: ipsec_md5c.c,v $ + * Revision 1.10 2005/04/15 01:25:57 mcr + * minor fix to comments. + * + * Revision 1.9 2004/09/08 17:21:36 ken + * Rename MD5* -> osMD5 functions to prevent clashes with other symbols exported by kernel modules (CIFS in 2.6 initiated this) + * + * Revision 1.8 2004/04/06 02:49:26 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.7 2002/09/10 01:45:14 mcr + * changed type of MD5_CTX and SHA1_CTX to void * so that + * the function prototypes would match, and could be placed + * into a pointer to a function. + * + * Revision 1.6 2002/04/24 07:55:32 mcr + * #include patches and Makefiles for post-reorg compilation. + * + * Revision 1.5 2002/04/24 07:36:28 mcr + * Moved from ./klips/net/ipsec/ipsec_md5c.c,v + * + * Revision 1.4 1999/12/13 13:59:12 rgb + * Quick fix to argument size to Update bugs. + * + * Revision 1.3 1999/05/21 18:09:28 henry + * unnecessary include causes trouble in 2.2 + * + * Revision 1.2 1999/04/06 04:54:26 rgb + * Fix/Add RCSID Id: and Log: bits to make PHMDs happy. This includes + * patch shell fixes. + * + * Revision 1.1 1998/06/18 21:27:48 henry + * move sources from klips/src to klips/net/ipsec, to keep stupid + * kernel-build scripts happier in the presence of symlinks + * + * Revision 1.2 1998/04/23 20:54:02 rgb + * Fixed md5 and sha1 include file nesting issues, to be cleaned up when + * verified. + * + * Revision 1.1 1998/04/09 03:06:08 henry + * sources moved up from linux/net/ipsec + * + * Revision 1.1.1.1 1998/04/08 05:35:04 henry + * RGB's ipsec-0.8pre2.tar.gz ipsec-0.8 + * + * Revision 0.3 1996/11/20 14:48:53 ji + * Release update only. + * + * Revision 0.2 1996/11/02 00:18:33 ji + * First limited release. + * + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ipsec_proc.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,1186 @@ +/* + * @(#) /proc file system interface code. + * + * Copyright (C) 1996, 1997 John Ioannidis. + * Copyright (C) 1998, 1999, 2000, 2001 Richard Guy Briggs + * 2001 Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * Split out from ipsec_init.c version 1.70. + */ + +char ipsec_proc_c_version[] = "RCSID $Id: ipsec_proc.c,v 1.39.2.4 2006/11/15 22:21:39 paul Exp $"; + + +#ifndef AUTOCONF_INCLUDED +#include +#endif +#include +#define __NO_VERSION__ +#include +#include /* printk() */ + +#include "openswan/ipsec_kversion.h" +#include "openswan/ipsec_param.h" + +#ifdef MALLOC_SLAB +# include /* kmalloc() */ +#else /* MALLOC_SLAB */ +# include /* kmalloc() */ +#endif /* MALLOC_SLAB */ +#include /* error codes */ +#include /* size_t */ +#include /* mark_bh */ + +#include /* struct device, and other headers */ +#include /* eth_type_trans */ +#include /* struct iphdr */ +#include /* struct sockaddr_in */ +#include +#include /* copy_from_user */ +#include +#ifdef SPINLOCK +#ifdef SPINLOCK_23 +#include /* *lock* */ +#else /* SPINLOCK_23 */ +#include /* *lock* */ +#endif /* SPINLOCK_23 */ +#endif /* SPINLOCK */ + +#include +#ifdef CONFIG_PROC_FS +#include +#endif /* CONFIG_PROC_FS */ +#ifdef NETLINK_SOCK +#include +#else +#include +#endif + +#include "openswan/radij.h" + +#include "openswan/ipsec_life.h" +#include "openswan/ipsec_stats.h" +#include "openswan/ipsec_sa.h" + +#include "openswan/ipsec_encap.h" +#include "openswan/ipsec_radij.h" +#include "openswan/ipsec_xform.h" +#include "openswan/ipsec_tunnel.h" +#include "openswan/ipsec_xmit.h" + +#include "openswan/ipsec_rcv.h" +#include "openswan/ipsec_ah.h" +#include "openswan/ipsec_esp.h" +#include "openswan/ipsec_kern24.h" + +#ifdef CONFIG_KLIPS_IPCOMP +#include "openswan/ipcomp.h" +#endif /* CONFIG_KLIPS_IPCOMP */ + +#include "openswan/ipsec_proto.h" + +#include +#include + +#ifdef CONFIG_PROC_FS + +#ifdef IPSEC_PROC_SUBDIRS +static struct proc_dir_entry *proc_net_ipsec_dir = NULL; +static struct proc_dir_entry *proc_eroute_dir = NULL; +static struct proc_dir_entry *proc_spi_dir = NULL; +static struct proc_dir_entry *proc_spigrp_dir = NULL; +static struct proc_dir_entry *proc_birth_dir = NULL; +static struct proc_dir_entry *proc_stats_dir = NULL; +#endif + +struct ipsec_birth_reply ipsec_ipv4_birth_packet; +struct ipsec_birth_reply ipsec_ipv6_birth_packet; + +#ifdef CONFIG_KLIPS_DEBUG +int debug_esp = 0; +int debug_ah = 0; +#endif /* CONFIG_KLIPS_DEBUG */ + +#define DECREMENT_UNSIGNED(X, amount) ((amount < (X)) ? (X)-amount : 0) + +extern int ipsec_xform_get_info(char *buffer, char **start, + off_t offset, int length IPSEC_PROC_LAST_ARG); + + +IPSEC_PROCFS_DEBUG_NO_STATIC +int +ipsec_eroute_get_info(char *buffer, + char **start, + off_t offset, + int length IPSEC_PROC_LAST_ARG) +{ + struct wsbuf w = {buffer, length, offset, 0, 0}; + +#ifdef CONFIG_KLIPS_DEBUG + if (debug_radij & DB_RJ_DUMPTREES) + rj_dumptrees(); /* XXXXXXXXX */ +#endif /* CONFIG_KLIPS_DEBUG */ + + KLIPS_PRINT(debug_tunnel & DB_TN_PROCFS, + "klips_debug:ipsec_eroute_get_info: " + "buffer=0p%p, *start=0p%p, offset=%d, length=%d\n", + buffer, + *start, + (int)offset, + length); + + spin_lock_bh(&eroute_lock); + + rj_walktree(rnh, ipsec_rj_walker_procprint, &w); +/* rj_walktree(mask_rjhead, ipsec_rj_walker_procprint, &w); */ + + spin_unlock_bh(&eroute_lock); + + *start = buffer + (offset - w.begin); /* Start of wanted data */ + return w.len - (offset - w.begin); +} + +IPSEC_PROCFS_DEBUG_NO_STATIC +int +ipsec_spi_get_info(char *buffer, + char **start, + off_t offset, + int length IPSEC_PROC_LAST_ARG) +{ + const int max_content = length > 0? length-1 : 0; + int len = 0; + off_t begin = 0; + int i; + struct ipsec_sa *sa_p; + char sa[SATOT_BUF]; + char buf_s[SUBNETTOA_BUF]; + char buf_d[SUBNETTOA_BUF]; + size_t sa_len; + + KLIPS_PRINT(debug_tunnel & DB_TN_PROCFS, + "klips_debug:ipsec_spi_get_info: " + "buffer=0p%p, *start=0p%p, offset=%d, length=%d\n", + buffer, + *start, + (int)offset, + length); + + spin_lock_bh(&tdb_lock); + + for (i = 0; i < SADB_HASHMOD; i++) { + for (sa_p = ipsec_sadb_hash[i]; + sa_p; + sa_p = sa_p->ips_hnext) { + atomic_inc(&sa_p->ips_refcount); + sa_len = satot(&sa_p->ips_said, 'x', sa, sizeof(sa)); + len += ipsec_snprintf(buffer+len, length-len, "%s ", + sa_len ? sa : " (error)"); + + len += ipsec_snprintf(buffer+len, length-len, "%s%s%s", + IPS_XFORM_NAME(sa_p)); + + len += ipsec_snprintf(buffer+len, length-len, ": dir=%s", + (sa_p->ips_flags & EMT_INBOUND) ? + "in " : "out"); + + if(sa_p->ips_addr_s) { + addrtoa(((struct sockaddr_in*)(sa_p->ips_addr_s))->sin_addr, + 0, buf_s, sizeof(buf_s)); + len += ipsec_snprintf(buffer+len, length-len, " src=%s", + buf_s); + } + + if((sa_p->ips_said.proto == IPPROTO_IPIP) + && (sa_p->ips_flags & SADB_X_SAFLAGS_INFLOW)) { + subnettoa(sa_p->ips_flow_s.u.v4.sin_addr, + sa_p->ips_mask_s.u.v4.sin_addr, + 0, + buf_s, + sizeof(buf_s)); + + subnettoa(sa_p->ips_flow_d.u.v4.sin_addr, + sa_p->ips_mask_d.u.v4.sin_addr, + 0, + buf_d, + sizeof(buf_d)); + + len += ipsec_snprintf(buffer+len, length-len, " policy=%s->%s", + buf_s, buf_d); + } + + if(sa_p->ips_iv_bits) { + int j; + len += ipsec_snprintf(buffer+len, length-len, " iv_bits=%dbits iv=0x", + sa_p->ips_iv_bits); + + for(j = 0; j < sa_p->ips_iv_bits / 8; j++) { + len += ipsec_snprintf(buffer+len, length-len, "%02x", + (__u32)((__u8*)(sa_p->ips_iv))[j]); + } + } + + if(sa_p->ips_encalg || sa_p->ips_authalg) { + if(sa_p->ips_replaywin) { + len += ipsec_snprintf(buffer+len, length-len, " ooowin=%d", + sa_p->ips_replaywin); + } + if(sa_p->ips_errs.ips_replaywin_errs) { + len += ipsec_snprintf(buffer+len, length-len, " ooo_errs=%d", + sa_p->ips_errs.ips_replaywin_errs); + } + if(sa_p->ips_replaywin_lastseq) { + len += ipsec_snprintf(buffer+len, length-len, " seq=%d", + sa_p->ips_replaywin_lastseq); + } + if(sa_p->ips_replaywin_bitmap) { +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0) + len += ipsec_snprintf(buffer+len, length-len, " bit=0x%Lx", + sa_p->ips_replaywin_bitmap); +#else + len += ipsec_snprintf(buffer+len, length-len, " bit=0x%x%08x", + (__u32)(sa_p->ips_replaywin_bitmap >> 32), + (__u32)sa_p->ips_replaywin_bitmap); +#endif + } + if(sa_p->ips_replaywin_maxdiff) { + len += ipsec_snprintf(buffer+len, length-len, " max_seq_diff=%d", + sa_p->ips_replaywin_maxdiff); + } + } + if(sa_p->ips_flags & ~EMT_INBOUND) { + len += ipsec_snprintf(buffer+len, length-len, " flags=0x%x", + sa_p->ips_flags & ~EMT_INBOUND); + len += ipsec_snprintf(buffer+len, length-len, "<"); + /* flag printing goes here */ + len += ipsec_snprintf(buffer+len, length-len, ">"); + } + if(sa_p->ips_auth_bits) { + len += ipsec_snprintf(buffer+len, length-len, " alen=%d", + sa_p->ips_auth_bits); + } + if(sa_p->ips_key_bits_a) { + len += ipsec_snprintf(buffer+len, length-len, " aklen=%d", + sa_p->ips_key_bits_a); + } + if(sa_p->ips_errs.ips_auth_errs) { + len += ipsec_snprintf(buffer+len, length-len, " auth_errs=%d", + sa_p->ips_errs.ips_auth_errs); + } + if(sa_p->ips_key_bits_e) { + len += ipsec_snprintf(buffer+len, length-len, " eklen=%d", + sa_p->ips_key_bits_e); + } + if(sa_p->ips_errs.ips_encsize_errs) { + len += ipsec_snprintf(buffer+len, length-len, " encr_size_errs=%d", + sa_p->ips_errs.ips_encsize_errs); + } + if(sa_p->ips_errs.ips_encpad_errs) { + len += ipsec_snprintf(buffer+len, length-len, " encr_pad_errs=%d", + sa_p->ips_errs.ips_encpad_errs); + } + + len += ipsec_snprintf(buffer+len, length-len, " life(c,s,h)="); + + len += ipsec_lifetime_format(buffer + len, + length - len, + "alloc", + ipsec_life_countbased, + &sa_p->ips_life.ipl_allocations); + + len += ipsec_lifetime_format(buffer + len, + length - len, + "bytes", + ipsec_life_countbased, + &sa_p->ips_life.ipl_bytes); + + len += ipsec_lifetime_format(buffer + len, + length - len, + "addtime", + ipsec_life_timebased, + &sa_p->ips_life.ipl_addtime); + + len += ipsec_lifetime_format(buffer + len, + length - len, + "usetime", + ipsec_life_timebased, + &sa_p->ips_life.ipl_usetime); + + len += ipsec_lifetime_format(buffer + len, + length - len, + "packets", + ipsec_life_countbased, + &sa_p->ips_life.ipl_packets); + + if(sa_p->ips_life.ipl_usetime.ipl_last) { /* XXX-MCR should be last? */ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0) + len += ipsec_snprintf(buffer+len, length-len, " idle=%Ld", + jiffies / HZ - sa_p->ips_life.ipl_usetime.ipl_last); +#else + len += ipsec_snprintf(buffer+len, length-len, " idle=%lu", + jiffies / HZ - (unsigned long)sa_p->ips_life.ipl_usetime.ipl_last); +#endif + } + +#ifdef CONFIG_KLIPS_IPCOMP + if(sa_p->ips_said.proto == IPPROTO_COMP && + (sa_p->ips_comp_ratio_dbytes || + sa_p->ips_comp_ratio_cbytes)) { +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0) + len += ipsec_snprintf(buffer+len, length-len, " ratio=%Ld:%Ld", + sa_p->ips_comp_ratio_dbytes, + sa_p->ips_comp_ratio_cbytes); +#else + len += ipsec_snprintf(buffer+len, length-len, " ratio=%lu:%lu", + (unsigned long)sa_p->ips_comp_ratio_dbytes, + (unsigned long)sa_p->ips_comp_ratio_cbytes); +#endif + } +#endif /* CONFIG_KLIPS_IPCOMP */ + +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL + { + char *natttype_name; + + switch(sa_p->ips_natt_type) + { + case 0: + natttype_name="none"; + break; + case ESPINUDP_WITH_NON_IKE: + natttype_name="nonike"; + break; + case ESPINUDP_WITH_NON_ESP: + natttype_name="nonesp"; + break; + default: + natttype_name = "unknown"; + break; + } + + len += ipsec_snprintf(buffer + len, length-len, " natencap=%s", + natttype_name); + + len += ipsec_snprintf(buffer + len, length-len, " natsport=%d", + sa_p->ips_natt_sport); + + len += ipsec_snprintf(buffer + len,length-len, " natdport=%d", + sa_p->ips_natt_dport); + } +#else + len += ipsec_snprintf(buffer + len, length-len, " natencap=na"); +#endif /* CONFIG_IPSEC_NAT_TRAVERSAL */ + + len += ipsec_snprintf(buffer + len,length-len, " refcount=%d", + atomic_read(&sa_p->ips_refcount)); + + len += ipsec_snprintf(buffer+len, length-len, " ref=%d", + sa_p->ips_ref); +#ifdef CONFIG_KLIPS_DEBUG + if(debug_xform) { + len += ipsec_snprintf(buffer+len, length-len, " reftable=%lu refentry=%lu", + (unsigned long)IPsecSAref2table(sa_p->ips_ref), + (unsigned long)IPsecSAref2entry(sa_p->ips_ref)); + } +#endif /* CONFIG_KLIPS_DEBUG */ + + len += ipsec_snprintf(buffer+len, length-len, "\n"); + + atomic_dec(&sa_p->ips_refcount); + + if (len >= max_content) { + /* we've done all that can fit -- stop loops */ + len = max_content; /* truncate crap */ + goto done_spi_i; + } else { + const off_t pos = begin + len; /* file position of end of what we've generated */ + + if (pos <= offset) { + /* all is before first interesting character: + * discard, but note where we are. + */ + len = 0; + begin = pos; + } + } + } + } + +done_spi_i: + spin_unlock_bh(&tdb_lock); + + *start = buffer + (offset - begin); /* Start of wanted data */ + return len - (offset - begin); +} + +IPSEC_PROCFS_DEBUG_NO_STATIC +int +ipsec_spigrp_get_info(char *buffer, + char **start, + off_t offset, + int length IPSEC_PROC_LAST_ARG) +{ + /* Limit of useful snprintf output */ + const int max_content = length > 0? length-1 : 0; + + int len = 0; + off_t begin = 0; + int i; + struct ipsec_sa *sa_p, *sa_p2; + char sa[SATOT_BUF]; + size_t sa_len; + + KLIPS_PRINT(debug_tunnel & DB_TN_PROCFS, + "klips_debug:ipsec_spigrp_get_info: " + "buffer=0p%p, *start=0p%p, offset=%d, length=%d\n", + buffer, + *start, + (int)offset, + length); + + spin_lock_bh(&tdb_lock); + + for (i = 0; i < SADB_HASHMOD; i++) { + for (sa_p = ipsec_sadb_hash[i]; + sa_p != NULL; + sa_p = sa_p->ips_hnext) + { + atomic_inc(&sa_p->ips_refcount); + if(sa_p->ips_inext == NULL) { + sa_p2 = sa_p; + while(sa_p2 != NULL) { + atomic_inc(&sa_p2->ips_refcount); + sa_len = satot(&sa_p2->ips_said, + 'x', sa, sizeof(sa)); + + len += ipsec_snprintf(buffer+len, length-len, "%s ", + sa_len ? sa : " (error)"); + atomic_dec(&sa_p2->ips_refcount); + sa_p2 = sa_p2->ips_onext; + } + len += ipsec_snprintf(buffer+len, length-len, "\n"); + } + + atomic_dec(&sa_p->ips_refcount); + + if (len >= max_content) { + /* we've done all that can fit -- stop loops */ + len = max_content; /* truncate crap */ + goto done_spigrp_i; + } else { + const off_t pos = begin + len; + + if (pos <= offset) { + /* all is before first interesting character: + * discard, but note where we are. + */ + len = 0; + begin = pos; + } + } + } + } + +done_spigrp_i: + spin_unlock_bh(&tdb_lock); + + *start = buffer + (offset - begin); /* Start of wanted data */ + return len - (offset - begin); +} + + +IPSEC_PROCFS_DEBUG_NO_STATIC +int +ipsec_tncfg_get_info(char *buffer, + char **start, + off_t offset, + int length IPSEC_PROC_LAST_ARG) +{ + /* limit of useful snprintf output */ + const int max_content = length > 0? length-1 : 0; + int len = 0; + off_t begin = 0; + int i; + char name[9]; + struct net_device *dev, *privdev; + struct ipsecpriv *priv; + + KLIPS_PRINT(debug_tunnel & DB_TN_PROCFS, + "klips_debug:ipsec_tncfg_get_info: " + "buffer=0p%p, *start=0p%p, offset=%d, length=%d\n", + buffer, + *start, + (int)offset, + length); + + for(i = 0; i < IPSEC_NUM_IF; i++) { + ipsec_snprintf(name, (ssize_t) sizeof(name), IPSEC_DEV_FORMAT, i); + dev = __ipsec_dev_get(name); + if(dev) { + priv = (struct ipsecpriv *)(dev->priv); + len += ipsec_snprintf(buffer+len, length-len, "%s", + dev->name); + if(priv) { + privdev = (struct net_device *)(priv->dev); + len += ipsec_snprintf(buffer+len, length-len, " -> %s", + privdev ? privdev->name : "NULL"); + len += ipsec_snprintf(buffer+len, length-len, " mtu=%d(%d) -> %d", + dev->mtu, + priv->mtu, + privdev ? privdev->mtu : 0); + } else { + KLIPS_PRINT(debug_tunnel & DB_TN_PROCFS, + "klips_debug:ipsec_tncfg_get_info: device '%s' has no private data space!\n", + dev->name); + } + len += ipsec_snprintf(buffer+len, length-len, "\n"); + + if (len >= max_content) { + /* we've done all that can fit -- stop loop */ + len = max_content; /* truncate crap */ + break; + } else { + const off_t pos = begin + len; + if (pos <= offset) { + len = 0; + begin = pos; + } + } + } + } + *start = buffer + (offset - begin); /* Start of wanted data */ + len -= (offset - begin); /* Start slop */ + if (len > length) + len = length; + return len; +} + +IPSEC_PROCFS_DEBUG_NO_STATIC +int +ipsec_version_get_info(char *buffer, + char **start, + off_t offset, + int length IPSEC_PROC_LAST_ARG) +{ + int len = 0; + off_t begin = 0; + + KLIPS_PRINT(debug_tunnel & DB_TN_PROCFS, + "klips_debug:ipsec_version_get_info: " + "buffer=0p%p, *start=0p%p, offset=%d, length=%d\n", + buffer, + *start, + (int)offset, + length); + + len += ipsec_snprintf(buffer + len,length-len, "Openswan version: %s\n", + ipsec_version_code()); +#if 0 + KLIPS_PRINT(debug_tunnel & DB_TN_PROCFS, + "klips_debug:ipsec_version_get_info: " + "ipsec_init version: %s\n", + ipsec_init_c_version); + KLIPS_PRINT(debug_tunnel & DB_TN_PROCFS, + "klips_debug:ipsec_version_get_info: " + "ipsec_tunnel version: %s\n", + ipsec_tunnel_c_version); + KLIPS_PRINT(debug_tunnel & DB_TN_PROCFS, + "klips_debug:ipsec_version_get_info: " + "ipsec_netlink version: %s\n", + ipsec_netlink_c_version); + KLIPS_PRINT(debug_tunnel & DB_TN_PROCFS, + "klips_debug:ipsec_version_get_info: " + "radij_c_version: %s\n", + radij_c_version); +#endif + + + *start = buffer + (offset - begin); /* Start of wanted data */ + len -= (offset - begin); /* Start slop */ + if (len > length) + len = length; + return len; +} + +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL +unsigned int natt_available = 1; +#else +unsigned int natt_available = 0; +#endif +module_param(natt_available, int, 0444); + +IPSEC_PROCFS_DEBUG_NO_STATIC +int +ipsec_natt_get_info(char *buffer, + char **start, + off_t offset, + int length IPSEC_PROC_LAST_ARG) +{ + int len = 0; + off_t begin = 0; + + len += ipsec_snprintf(buffer + len, + length-len, "%d\n", +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL + 1 +#else + 0 +#endif + ); + + *start = buffer + (offset - begin); /* Start of wanted data */ + len -= (offset - begin); /* Start slop */ + if (len > length) + len = length; + return len; +} + +IPSEC_PROCFS_DEBUG_NO_STATIC +int +ipsec_birth_info(char *page, + char **start, + off_t offset, + int count, + int *eof, + void *data) +{ + struct ipsec_birth_reply *ibr = (struct ipsec_birth_reply *)data; + int len; + + if(offset >= ibr->packet_template_len) { + if(eof) { + *eof=1; + } + return 0; + } + + len = ibr->packet_template_len; + len -= offset; + if (len > count) + len = count; + + memcpy(page + offset, ibr->packet_template+offset, len); + + return len; +} + +IPSEC_PROCFS_DEBUG_NO_STATIC +int +ipsec_birth_set(struct file *file, const char *buffer, + unsigned long count, void *data) +{ + struct ipsec_birth_reply *ibr = (struct ipsec_birth_reply *)data; + int len; + + KLIPS_INC_USE; + if(count > IPSEC_BIRTH_TEMPLATE_MAXLEN) { + len = IPSEC_BIRTH_TEMPLATE_MAXLEN; + } else { + len = count; + } + + if(copy_from_user(ibr->packet_template, buffer, len)) { + KLIPS_DEC_USE; + return -EFAULT; + } + ibr->packet_template_len = len; + + KLIPS_DEC_USE; + + return len; +} + + +#ifdef CONFIG_KLIPS_DEBUG +IPSEC_PROCFS_DEBUG_NO_STATIC +int +ipsec_klipsdebug_get_info(char *buffer, + char **start, + off_t offset, + int length IPSEC_PROC_LAST_ARG) +{ + int len = 0; + off_t begin = 0; + + KLIPS_PRINT(debug_tunnel & DB_TN_PROCFS, + "klips_debug:ipsec_klipsdebug_get_info: " + "buffer=0p%p, *start=0p%p, offset=%d, length=%d\n", + buffer, + *start, + (int)offset, + length); + + len += ipsec_snprintf(buffer+len, length-len, "debug_tunnel=%08x.\n", debug_tunnel); + len += ipsec_snprintf(buffer+len, length-len, "debug_xform=%08x.\n", debug_xform); + len += ipsec_snprintf(buffer+len, length-len, "debug_eroute=%08x.\n", debug_eroute); + len += ipsec_snprintf(buffer+len, length-len, "debug_spi=%08x.\n", debug_spi); + len += ipsec_snprintf(buffer+len, length-len, "debug_radij=%08x.\n", debug_radij); + len += ipsec_snprintf(buffer+len, length-len, "debug_esp=%08x.\n", debug_esp); + len += ipsec_snprintf(buffer+len, length-len, "debug_ah=%08x.\n", debug_ah); + len += ipsec_snprintf(buffer+len, length-len, "debug_rcv=%08x.\n", debug_rcv); + len += ipsec_snprintf(buffer+len, length-len, "debug_pfkey=%08x.\n", debug_pfkey); + + *start = buffer + (offset - begin); /* Start of wanted data */ + len -= (offset - begin); /* Start slop */ + if (len > length) + len = length; + return len; +} +#endif /* CONFIG_KLIPS_DEBUG */ + +IPSEC_PROCFS_DEBUG_NO_STATIC +int +ipsec_stats_get_int_info(char *buffer, + char **start, + off_t offset, + int length, + int *eof, + void *data) +{ + + const int max_content = length > 0? length-1 : 0; + int len = 0; + int *thing; + + thing = (int *)data; + + len = ipsec_snprintf(buffer+len, length-len, "%08x\n", *thing); + + if (len >= max_content) + len = max_content; /* truncate crap */ + + *start = buffer + offset; /* Start of wanted data */ + return len > offset? len - offset : 0; + +} + +#ifndef PROC_FS_2325 +struct proc_dir_entry ipsec_eroute = +{ + 0, + 12, "ipsec_eroute", + S_IFREG | S_IRUGO, 1, 0, 0, 0, + &proc_net_inode_operations, + ipsec_eroute_get_info, + NULL, NULL, NULL, NULL, NULL +}; + +struct proc_dir_entry ipsec_spi = +{ + 0, + 9, "ipsec_spi", + S_IFREG | S_IRUGO, 1, 0, 0, 0, + &proc_net_inode_operations, + ipsec_spi_get_info, + NULL, NULL, NULL, NULL, NULL +}; + +struct proc_dir_entry ipsec_spigrp = +{ + 0, + 12, "ipsec_spigrp", + S_IFREG | S_IRUGO, 1, 0, 0, 0, + &proc_net_inode_operations, + ipsec_spigrp_get_info, + NULL, NULL, NULL, NULL, NULL +}; + +struct proc_dir_entry ipsec_tncfg = +{ + 0, + 11, "ipsec_tncfg", + S_IFREG | S_IRUGO, 1, 0, 0, 0, + &proc_net_inode_operations, + ipsec_tncfg_get_info, + NULL, NULL, NULL, NULL, NULL +}; + +struct proc_dir_entry ipsec_version = +{ + 0, + 13, "ipsec_version", + S_IFREG | S_IRUGO, 1, 0, 0, 0, + &proc_net_inode_operations, + ipsec_version_get_info, + NULL, NULL, NULL, NULL, NULL +}; + +#ifdef CONFIG_KLIPS_DEBUG +struct proc_dir_entry ipsec_klipsdebug = +{ + 0, + 16, "ipsec_klipsdebug", + S_IFREG | S_IRUGO, 1, 0, 0, 0, + &proc_net_inode_operations, + ipsec_klipsdebug_get_info, + NULL, NULL, NULL, NULL, NULL +}; +#endif /* CONFIG_KLIPS_DEBUG */ +#endif /* !PROC_FS_2325 */ +#endif /* CONFIG_PROC_FS */ + +#if defined(PROC_FS_2325) +struct ipsec_proc_list { + char *name; + struct proc_dir_entry **parent; + struct proc_dir_entry **dir; + read_proc_t *readthing; + write_proc_t *writething; + void *data; +}; +static struct ipsec_proc_list proc_items[]={ +#ifdef CONFIG_KLIPS_DEBUG + {"klipsdebug", &proc_net_ipsec_dir, NULL, ipsec_klipsdebug_get_info, NULL, NULL}, +#endif + {"eroute", &proc_net_ipsec_dir, &proc_eroute_dir, NULL, NULL, NULL}, + {"all", &proc_eroute_dir, NULL, ipsec_eroute_get_info, NULL, NULL}, + {"spi", &proc_net_ipsec_dir, &proc_spi_dir, NULL, NULL, NULL}, + {"all", &proc_spi_dir, NULL, ipsec_spi_get_info, NULL, NULL}, + {"spigrp", &proc_net_ipsec_dir, &proc_spigrp_dir, NULL, NULL, NULL}, + {"all", &proc_spigrp_dir, NULL, ipsec_spigrp_get_info, NULL, NULL}, + {"birth", &proc_net_ipsec_dir, &proc_birth_dir, NULL, NULL, NULL}, + {"ipv4", &proc_birth_dir, NULL, ipsec_birth_info, ipsec_birth_set, (void *)&ipsec_ipv4_birth_packet}, + {"ipv6", &proc_birth_dir, NULL, ipsec_birth_info, ipsec_birth_set, (void *)&ipsec_ipv6_birth_packet}, + {"tncfg", &proc_net_ipsec_dir, NULL, ipsec_tncfg_get_info, NULL, NULL}, + {"xforms", &proc_net_ipsec_dir, NULL, ipsec_xform_get_info, NULL, NULL}, + {"stats", &proc_net_ipsec_dir, &proc_stats_dir, NULL, NULL, NULL}, + {"trap_count", &proc_stats_dir, NULL, ipsec_stats_get_int_info, NULL, &ipsec_xmit_trap_count}, + {"trap_sendcount", &proc_stats_dir, NULL, ipsec_stats_get_int_info, NULL, &ipsec_xmit_trap_sendcount}, + {"version", &proc_net_ipsec_dir, NULL, ipsec_version_get_info, NULL, NULL}, + {NULL, NULL, NULL, NULL, NULL, NULL} +}; +#endif + +int +ipsec_proc_init() +{ + int error = 0; +#ifdef IPSEC_PROC_SUBDIRS + struct proc_dir_entry *item; +#endif + + /* + * just complain because pluto won't run without /proc! + */ +#ifndef CONFIG_PROC_FS +#error You must have PROC_FS built in to use KLIPS +#endif + + /* for 2.0 kernels */ +#if !defined(PROC_FS_2325) && !defined(PROC_FS_21) + error |= proc_register_dynamic(&proc_net, &ipsec_eroute); + error |= proc_register_dynamic(&proc_net, &ipsec_spi); + error |= proc_register_dynamic(&proc_net, &ipsec_spigrp); + error |= proc_register_dynamic(&proc_net, &ipsec_tncfg); + error |= proc_register_dynamic(&proc_net, &ipsec_version); +#ifdef CONFIG_KLIPS_DEBUG + error |= proc_register_dynamic(&proc_net, &ipsec_klipsdebug); +#endif /* CONFIG_KLIPS_DEBUG */ +#endif + + /* for 2.2 kernels */ +#if !defined(PROC_FS_2325) && defined(PROC_FS_21) + error |= proc_register(proc_net, &ipsec_eroute); + error |= proc_register(proc_net, &ipsec_spi); + error |= proc_register(proc_net, &ipsec_spigrp); + error |= proc_register(proc_net, &ipsec_tncfg); + error |= proc_register(proc_net, &ipsec_version); +#ifdef CONFIG_KLIPS_DEBUG + error |= proc_register(proc_net, &ipsec_klipsdebug); +#endif /* CONFIG_KLIPS_DEBUG */ +#endif + + /* for 2.4 kernels */ +#if defined(PROC_FS_2325) + /* create /proc/net/ipsec */ + + /* zero these out before we initialize /proc/net/ipsec/birth/stuff */ + memset(&ipsec_ipv4_birth_packet, 0, sizeof(struct ipsec_birth_reply)); + memset(&ipsec_ipv6_birth_packet, 0, sizeof(struct ipsec_birth_reply)); + + proc_net_ipsec_dir = proc_mkdir("ipsec", proc_net); + if(proc_net_ipsec_dir == NULL) { + /* no point in continuing */ + return 1; + } + + { + struct ipsec_proc_list *it; + + it=proc_items; + while(it->name!=NULL) { + if(it->dir) { + /* make a dir instead */ + item = proc_mkdir(it->name, *it->parent); + *it->dir = item; + } else { + item = create_proc_entry(it->name, 0400, *it->parent); + } + if(item) { + item->read_proc = it->readthing; + item->write_proc = it->writething; + item->data = it->data; +#ifdef MODULE + item->owner = THIS_MODULE; +#endif + } else { + error |= 1; + } + it++; + } + } + + /* now create some symlinks to provide compatibility */ + proc_symlink("ipsec_eroute", proc_net, "ipsec/eroute/all"); + proc_symlink("ipsec_spi", proc_net, "ipsec/spi/all"); + proc_symlink("ipsec_spigrp", proc_net, "ipsec/spigrp/all"); + proc_symlink("ipsec_tncfg", proc_net, "ipsec/tncfg"); + proc_symlink("ipsec_version",proc_net, "ipsec/version"); + proc_symlink("ipsec_klipsdebug",proc_net,"ipsec/klipsdebug"); + +#endif /* !PROC_FS_2325 */ + + return error; +} + +void +ipsec_proc_cleanup() +{ + + /* for 2.0 and 2.2 kernels */ +#if !defined(PROC_FS_2325) + +#ifdef CONFIG_KLIPS_DEBUG + if (proc_net_unregister(ipsec_klipsdebug.low_ino) != 0) + printk("klips_debug:ipsec_cleanup: " + "cannot unregister /proc/net/ipsec_klipsdebug\n"); +#endif /* CONFIG_KLIPS_DEBUG */ + + if (proc_net_unregister(ipsec_version.low_ino) != 0) + printk("klips_debug:ipsec_cleanup: " + "cannot unregister /proc/net/ipsec_version\n"); + if (proc_net_unregister(ipsec_eroute.low_ino) != 0) + printk("klips_debug:ipsec_cleanup: " + "cannot unregister /proc/net/ipsec_eroute\n"); + if (proc_net_unregister(ipsec_spi.low_ino) != 0) + printk("klips_debug:ipsec_cleanup: " + "cannot unregister /proc/net/ipsec_spi\n"); + if (proc_net_unregister(ipsec_spigrp.low_ino) != 0) + printk("klips_debug:ipsec_cleanup: " + "cannot unregister /proc/net/ipsec_spigrp\n"); + if (proc_net_unregister(ipsec_tncfg.low_ino) != 0) + printk("klips_debug:ipsec_cleanup: " + "cannot unregister /proc/net/ipsec_tncfg\n"); +#endif + + /* for 2.4 kernels */ +#if defined(PROC_FS_2325) + { + struct ipsec_proc_list *it; + + /* find end of list */ + it=proc_items; + while(it->name!=NULL) { + it++; + } + it--; + + do { + remove_proc_entry(it->name, *it->parent); + it--; + } while(it >= proc_items); + } + + +#ifdef CONFIG_KLIPS_DEBUG + remove_proc_entry("ipsec_klipsdebug", proc_net); +#endif /* CONFIG_KLIPS_DEBUG */ + remove_proc_entry("ipsec_eroute", proc_net); + remove_proc_entry("ipsec_spi", proc_net); + remove_proc_entry("ipsec_spigrp", proc_net); + remove_proc_entry("ipsec_tncfg", proc_net); + remove_proc_entry("ipsec_version", proc_net); + remove_proc_entry("ipsec", proc_net); +#endif /* 2.4 kernel */ +} + +/* + * $Log: ipsec_proc.c,v $ + * Revision 1.39.2.4 2006/11/15 22:21:39 paul + * backport of creating a /sys/ file to test for nat-t capability in kernel. + * + * Revision 1.39.2.3 2006/10/06 21:39:26 paul + * Fix for 2.6.18+ only include linux/config.h if AUTOCONF_INCLUDED is not + * set. This is defined through autoconf.h which is included through the + * linux kernel build macros. + * + * Revision 1.39.2.2 2006/02/13 18:48:12 paul + * Fix by Ankit Desai for module unloading. + * + * Revision 1.39.2.1 2005/09/07 00:45:59 paul + * pull up of mcr's nat-t klips detection patch from head + * + * Revision 1.39 2005/05/20 03:19:18 mcr + * modifications for use on 2.4.30 kernel, with backported + * printk_ratelimit(). all warnings removed. + * + * Revision 1.38 2005/04/29 05:10:22 mcr + * removed from extraenous includes to make unit testing easier. + * + * Revision 1.37 2005/04/13 22:49:49 mcr + * moved KLIPS specific snprintf() wrapper to seperate file. + * + * Revision 1.36 2005/04/06 17:44:36 mcr + * when NAT-T is compiled out, show encap as "NA" + * + * Revision 1.35 2005/01/26 00:50:35 mcr + * adjustment of confusion of CONFIG_IPSEC_NAT vs CONFIG_KLIPS_NAT, + * and make sure that NAT_TRAVERSAL is set as well to match + * userspace compiles of code. + * + * Revision 1.34 2004/12/03 21:25:57 mcr + * compile time fixes for running on 2.6. + * still experimental. + * + * Revision 1.33 2004/08/17 03:27:23 mcr + * klips 2.6 edits. + * + * Revision 1.32 2004/08/03 18:19:08 mcr + * in 2.6, use "net_device" instead of #define device->net_device. + * this probably breaks 2.0 compiles. + * + * Revision 1.31 2004/07/10 19:11:18 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.30 2004/04/25 21:23:11 ken + * Pull in dhr's changes from FreeS/WAN 2.06 + * + * Revision 1.29 2004/04/06 02:49:26 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.28 2004/03/28 20:29:58 paul + * ssize_t, not ssized_t + * + * Revision 1.27 2004/03/28 20:27:20 paul + * Included tested and confirmed fixes mcr made and dhr verified for + * snprint statements. Changed one other snprintf to use ipsec_snprintf + * so it wouldnt break compatibility with 2.0/2.2 kernels. Verified with + * dhr. (thanks dhr!) + * + * Revision 1.26 2004/02/09 22:07:06 mcr + * added information about nat-traversal setting to spi-output. + * + * Revision 1.25.4.1 2004/04/05 04:30:46 mcr + * patches for alg-branch to compile/work with 2.x openswan + * + * Revision 1.25 2003/10/31 02:27:55 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.24.4.1 2003/10/29 01:30:41 mcr + * elimited "struct sa_id". + * + * Revision 1.24 2003/06/20 01:42:21 mcr + * added counters to measure how many ACQUIREs we send to pluto, + * and how many are successfully sent. + * + * Revision 1.23 2003/04/03 17:38:09 rgb + * Centralised ipsec_kfree_skb and ipsec_dev_{get,put}. + * + * Revision 1.22 2002/09/20 15:40:57 rgb + * Renamed saref macros for consistency and brevity. + * + * Revision 1.21 2002/09/20 05:01:35 rgb + * Print ref and reftable, refentry seperately. + * + * Revision 1.20 2002/09/19 02:35:39 mcr + * do not define structures needed by /proc/net/ipsec/ if we + * aren't going create that directory. + * + * Revision 1.19 2002/09/10 01:43:25 mcr + * fixed problem in /-* comment. + * + * Revision 1.18 2002/09/03 16:22:11 mcr + * fixed initialization of birth/stuff values - some simple + * screw ups in the code. + * removed debugging that was left in by mistake. + * + * Revision 1.17 2002/09/02 17:54:53 mcr + * changed how the table driven /proc entries are created so that + * making subdirs is now explicit rather than implicit. + * + * Revision 1.16 2002/08/30 01:23:37 mcr + * reorganized /proc creating code to clear up ifdefs, + * make the 2.4 code table driven, and put things into + * /proc/net/ipsec subdir. Symlinks are left for compatibility. + * + * Revision 1.15 2002/08/13 19:01:25 mcr + * patches from kenb to permit compilation of FreeSWAN on ia64. + * des library patched to use proper DES_LONG type for ia64. + * + * Revision 1.14 2002/07/26 08:48:31 rgb + * Added SA ref table code. + * + * Revision 1.13 2002/07/24 18:44:54 rgb + * Type fiddling to tame ia64 compiler. + * + * Revision 1.12 2002/05/27 18:56:07 rgb + * Convert to dynamic ipsec device allocation. + * + * Revision 1.11 2002/05/23 07:14:50 rgb + * Added refcount code. + * Cleaned up %p variants to 0p%p for test suite cleanup. + * Convert "usecount" to "refcount" to remove ambiguity. + * + * Revision 1.10 2002/04/24 07:55:32 mcr + * #include patches and Makefiles for post-reorg compilation. + * + * Revision 1.9 2002/04/24 07:36:28 mcr + * Moved from ./klips/net/ipsec/ipsec_proc.c,v + * + * Revision 1.8 2002/01/29 17:17:55 mcr + * moved include of ipsec_param.h to after include of linux/kernel.h + * otherwise, it seems that some option that is set in ipsec_param.h + * screws up something subtle in the include path to kernel.h, and + * it complains on the snprintf() prototype. + * + * Revision 1.7 2002/01/29 04:00:52 mcr + * more excise of kversions.h header. + * + * Revision 1.6 2002/01/29 02:13:17 mcr + * introduction of ipsec_kversion.h means that include of + * ipsec_param.h must preceed any decisions about what files to + * include to deal with differences in kernel source. + * + * Revision 1.5 2002/01/12 02:54:30 mcr + * beginnings of /proc/net/ipsec dir. + * + * Revision 1.4 2001/12/11 02:21:05 rgb + * Don't include module version here, fixing 2.2 compile bug. + * + * Revision 1.3 2001/12/05 07:19:44 rgb + * Fixed extraneous #include "version.c" bug causing modular KLIPS failure. + * + * Revision 1.2 2001/11/26 09:16:14 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.74 2001/11/22 05:44:11 henry + * new version stuff + * + * Revision 1.1.2.1 2001/09/25 02:19:40 mcr + * /proc manipulation code moved to new ipsec_proc.c + * + * + * Local variables: + * c-file-style: "linux" + * End: + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ipsec_radij.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,889 @@ +/* + * Interface between the IPSEC code and the radix (radij) tree code + * Copyright (C) 1996, 1997 John Ioannidis. + * Copyright (C) 1998, 1999, 2000, 2001 Richard Guy Briggs. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_radij.c,v 1.73.2.1 2006/10/06 21:39:26 paul Exp $ + */ + +#ifndef AUTOCONF_INCLUDED +#include +#endif +#include +#include /* printk() */ + +#include "openswan/ipsec_param.h" + +#ifdef MALLOC_SLAB +# include /* kmalloc() */ +#else /* MALLOC_SLAB */ +# include /* kmalloc() */ +#endif /* MALLOC_SLAB */ +#include /* error codes */ +#include /* size_t */ +#include /* mark_bh */ + +#include /* struct device, struct net_device_stats and other headers */ +#include /* eth_type_trans */ +#include /* struct iphdr */ +#include +#include +#ifdef SPINLOCK +# ifdef SPINLOCK_23 +# include /* *lock* */ +# else /* 23_SPINLOCK */ +# include /* *lock* */ +# endif /* 23_SPINLOCK */ +#endif /* SPINLOCK */ + +#include + +#include "openswan/ipsec_eroute.h" +#include "openswan/ipsec_sa.h" + +#include "openswan/radij.h" +#include "openswan/ipsec_encap.h" +#include "openswan/radij.h" +#include "openswan/ipsec_encap.h" +#include "openswan/ipsec_radij.h" +#include "openswan/ipsec_tunnel.h" /* struct ipsecpriv */ +#include "openswan/ipsec_xform.h" + +#include +#include + +#include "openswan/ipsec_proto.h" + +#ifdef CONFIG_KLIPS_DEBUG +int debug_radij = 0; +#endif /* CONFIG_KLIPS_DEBUG */ + +struct radij_node_head *rnh = NULL; +#ifdef SPINLOCK +spinlock_t eroute_lock = SPIN_LOCK_UNLOCKED; +#else /* SPINLOCK */ +spinlock_t eroute_lock; +#endif /* SPINLOCK */ + +int +ipsec_radijinit(void) +{ + maj_keylen = sizeof (struct sockaddr_encap); + + rj_init(); + + if (rj_inithead((void **)&rnh, /*16*/offsetof(struct sockaddr_encap, sen_type) * sizeof(__u8)) == 0) /* 16 is bit offset of sen_type */ + return -1; + return 0; +} + +int +ipsec_radijcleanup(void) +{ + int error; + + spin_lock_bh(&eroute_lock); + + error = radijcleanup(); + + spin_unlock_bh(&eroute_lock); + + return error; +} + +int +ipsec_cleareroutes(void) +{ + int error; + + spin_lock_bh(&eroute_lock); + + error = radijcleartree(); + + spin_unlock_bh(&eroute_lock); + + return error; +} + +int +ipsec_breakroute(struct sockaddr_encap *eaddr, + struct sockaddr_encap *emask, + struct sk_buff **first, + struct sk_buff **last) +{ + struct eroute *ro; + struct radij_node *rn; + int error; +#ifdef CONFIG_KLIPS_DEBUG + + if (debug_eroute) { + char buf1[SUBNETTOA_BUF], buf2[SUBNETTOA_BUF]; + subnettoa(eaddr->sen_ip_src, emask->sen_ip_src, 0, buf1, sizeof(buf1)); + subnettoa(eaddr->sen_ip_dst, emask->sen_ip_dst, 0, buf2, sizeof(buf2)); + KLIPS_PRINT(debug_eroute, + "klips_debug:ipsec_breakroute: " + "attempting to delete eroute for %s:%d->%s:%d %d\n", + buf1, ntohs(eaddr->sen_sport), + buf2, ntohs(eaddr->sen_dport), eaddr->sen_proto); + } +#endif /* CONFIG_KLIPS_DEBUG */ + + spin_lock_bh(&eroute_lock); + + if ((error = rj_delete(eaddr, emask, rnh, &rn)) != 0) { + spin_unlock_bh(&eroute_lock); + KLIPS_PRINT(debug_eroute, + "klips_debug:ipsec_breakroute: " + "node not found, eroute delete failed.\n"); + return error; + } + + spin_unlock_bh(&eroute_lock); + + ro = (struct eroute *)rn; + + KLIPS_PRINT(debug_eroute, + "klips_debug:ipsec_breakroute: " + "deleted eroute=0p%p, ident=0p%p->0p%p, first=0p%p, last=0p%p\n", + ro, + ro->er_ident_s.data, + ro->er_ident_d.data, + ro->er_first, + ro->er_last); + + if (ro->er_ident_s.data != NULL) { + kfree(ro->er_ident_s.data); + } + if (ro->er_ident_d.data != NULL) { + kfree(ro->er_ident_d.data); + } + if (ro->er_first != NULL) { +#if 0 + struct net_device_stats *stats = (struct net_device_stats *) &(((struct ipsecpriv *)(ro->er_first->dev->priv))->mystats); + stats->tx_dropped--; +#endif + *first = ro->er_first; + } + if (ro->er_last != NULL) { +#if 0 + struct net_device_stats *stats = (struct net_device_stats *) &(((struct ipsecpriv *)(ro->er_last->dev->priv))->mystats); + stats->tx_dropped--; +#endif + *last = ro->er_last; + } + + if (rn->rj_flags & (RJF_ACTIVE | RJF_ROOT)) + panic ("ipsec_breakroute RMT_DELEROUTE root or active node\n"); + memset((caddr_t)rn, 0, sizeof (struct eroute)); + kfree(rn); + + return 0; +} + +int +ipsec_makeroute(struct sockaddr_encap *eaddr, + struct sockaddr_encap *emask, + ip_said said, + uint32_t pid, + struct sk_buff *skb, + struct ident *ident_s, + struct ident *ident_d) +{ + struct eroute *retrt; + int error; + char sa[SATOT_BUF]; + size_t sa_len; + +#ifdef CONFIG_KLIPS_DEBUG + + if (debug_eroute) { + + { + char buf1[SUBNETTOA_BUF], buf2[SUBNETTOA_BUF]; + + subnettoa(eaddr->sen_ip_src, emask->sen_ip_src, 0, buf1, sizeof(buf1)); + subnettoa(eaddr->sen_ip_dst, emask->sen_ip_dst, 0, buf2, sizeof(buf2)); + sa_len = satot(&said, 0, sa, sizeof(sa)); + KLIPS_PRINT(debug_eroute, + "klips_debug:ipsec_makeroute: " + "attempting to allocate %lu bytes to insert eroute for %s->%s, SA: %s, PID:%d, skb=0p%p, ident:%s->%s\n", + (unsigned long) sizeof(struct eroute), + buf1, + buf2, + sa_len ? sa : " (error)", + pid, + skb, + (ident_s ? (ident_s->data ? ident_s->data : "NULL") : "NULL"), + (ident_d ? (ident_d->data ? ident_d->data : "NULL") : "NULL")); + } + { + char buf1[sizeof(struct sockaddr_encap)*2 + 1], + buf2[sizeof(struct sockaddr_encap)*2 + 1]; + int i; + unsigned char *b1 = buf1, + *b2 = buf2, + *ea = (unsigned char *)eaddr, + *em = (unsigned char *)emask; + + + for (i=0; ier_eaddr = *eaddr; + retrt->er_emask = *emask; + retrt->er_said = said; + retrt->er_pid = pid; + retrt->er_count = 0; + retrt->er_lasttime = jiffies/HZ; + + { + /* this is because gcc 3. doesn't like cast's as lvalues */ + struct rjtentry *rje = (struct rjtentry *)&(retrt->er_rjt); + caddr_t er = (caddr_t)&(retrt->er_eaddr); + + rje->rd_nodes->rj_key= er; + } + + if (ident_s && ident_s->type != SADB_IDENTTYPE_RESERVED) { + int data_len = ident_s->len * IPSEC_PFKEYv2_ALIGN - sizeof(struct sadb_ident); + + retrt->er_ident_s.type = ident_s->type; + retrt->er_ident_s.id = ident_s->id; + retrt->er_ident_s.len = ident_s->len; + if(data_len) { + KLIPS_PRINT(debug_eroute, + "klips_debug:ipsec_makeroute: " + "attempting to allocate %u bytes for ident_s.\n", + data_len); + if(!(retrt->er_ident_s.data = kmalloc(data_len, GFP_KERNEL))) { + kfree(retrt); + printk("klips_error:ipsec_makeroute: not able to allocate kernel memory (%d)\n", data_len); + return ENOMEM; + } + memcpy(retrt->er_ident_s.data, ident_s->data, data_len); + } else { + retrt->er_ident_s.data = NULL; + } + } + + if (ident_d && ident_d->type != SADB_IDENTTYPE_RESERVED) { + int data_len = ident_d->len * IPSEC_PFKEYv2_ALIGN - sizeof(struct sadb_ident); + + retrt->er_ident_d.type = ident_d->type; + retrt->er_ident_d.id = ident_d->id; + retrt->er_ident_d.len = ident_d->len; + if(data_len) { + KLIPS_PRINT(debug_eroute, + "klips_debug:ipsec_makeroute: " + "attempting to allocate %u bytes for ident_d.\n", + data_len); + if(!(retrt->er_ident_d.data = kmalloc(data_len, GFP_KERNEL))) { + if (retrt->er_ident_s.data) + kfree(retrt->er_ident_s.data); + kfree(retrt); + printk("klips_error:ipsec_makeroute: not able to allocate kernel memory (%d)\n", data_len); + return ENOMEM; + } + memcpy(retrt->er_ident_d.data, ident_d->data, data_len); + } else { + retrt->er_ident_d.data = NULL; + } + } + retrt->er_first = skb; + retrt->er_last = NULL; + + KLIPS_PRINT(debug_eroute, + "klips_debug:ipsec_makeroute: " + "calling rj_addroute now\n"); + + spin_lock_bh(&eroute_lock); + + error = rj_addroute(&(retrt->er_eaddr), &(retrt->er_emask), + rnh, retrt->er_rjt.rd_nodes); + + spin_unlock_bh(&eroute_lock); + + if(error) { + sa_len = satot(&said, 0, sa, sizeof(sa)); + KLIPS_PRINT(debug_eroute, + "klips_debug:ipsec_makeroute: " + "rj_addroute not able to insert eroute for SA:%s (error:%d)\n", + sa_len ? sa : " (error)", error); + if (retrt->er_ident_s.data) + kfree(retrt->er_ident_s.data); + if (retrt->er_ident_d.data) + kfree(retrt->er_ident_d.data); + + kfree(retrt); + + return error; + } + +#ifdef CONFIG_KLIPS_DEBUG + if (debug_eroute) { + char buf1[SUBNETTOA_BUF], buf2[SUBNETTOA_BUF]; +/* + subnettoa(eaddr->sen_ip_src, emask->sen_ip_src, 0, buf1, sizeof(buf1)); + subnettoa(eaddr->sen_ip_dst, emask->sen_ip_dst, 0, buf2, sizeof(buf2)); +*/ + subnettoa(rd_key((&(retrt->er_rjt)))->sen_ip_src, rd_mask((&(retrt->er_rjt)))->sen_ip_src, 0, buf1, sizeof(buf1)); + subnettoa(rd_key((&(retrt->er_rjt)))->sen_ip_dst, rd_mask((&(retrt->er_rjt)))->sen_ip_dst, 0, buf2, sizeof(buf2)); + sa_len = satot(&retrt->er_said, 0, sa, sizeof(sa)); + + KLIPS_PRINT(debug_eroute, + "klips_debug:ipsec_makeroute: " + "pid=%05d " + "count=%10d " + "lasttime=%6d " + "%-18s -> %-18s => %s\n", + retrt->er_pid, + retrt->er_count, + (int)(jiffies/HZ - retrt->er_lasttime), + buf1, + buf2, + sa_len ? sa : " (error)"); + } +#endif /* CONFIG_KLIPS_DEBUG */ + KLIPS_PRINT(debug_eroute, + "klips_debug:ipsec_makeroute: " + "succeeded.\n"); + return 0; +} + +struct eroute * +ipsec_findroute(struct sockaddr_encap *eaddr) +{ + struct radij_node *rn; +#ifdef CONFIG_KLIPS_DEBUG + char buf1[ADDRTOA_BUF], buf2[ADDRTOA_BUF]; + + if (debug_radij & DB_RJ_FINDROUTE) { + addrtoa(eaddr->sen_ip_src, 0, buf1, sizeof(buf1)); + addrtoa(eaddr->sen_ip_dst, 0, buf2, sizeof(buf2)); + KLIPS_PRINT(debug_eroute, + "klips_debug:ipsec_findroute: " + "%s:%d->%s:%d %d\n", + buf1, ntohs(eaddr->sen_sport), + buf2, ntohs(eaddr->sen_dport), + eaddr->sen_proto); + } +#endif /* CONFIG_KLIPS_DEBUG */ + rn = rj_match((caddr_t)eaddr, rnh); + if(rn) { + KLIPS_PRINT(debug_eroute && sysctl_ipsec_debug_verbose, + "klips_debug:ipsec_findroute: " + "found, points to proto=%d, spi=%x, dst=%x.\n", + ((struct eroute*)rn)->er_said.proto, + ntohl(((struct eroute*)rn)->er_said.spi), + ntohl(((struct eroute*)rn)->er_said.dst.u.v4.sin_addr.s_addr)); + } + return (struct eroute *)rn; +} + +#ifdef CONFIG_PROC_FS +/** ipsec_rj_walker_procprint: print one line of eroute table output. + * + * Theoretical BUG: if w->length is less than the length + * of some line we should produce, that line will never + * be finished. In effect, the "file" will stop part way + * through that line. + */ +int +ipsec_rj_walker_procprint(struct radij_node *rn, void *w0) +{ + struct eroute *ro = (struct eroute *)rn; + struct rjtentry *rd = (struct rjtentry *)rn; + struct wsbuf *w = (struct wsbuf *)w0; + char buf1[SUBNETTOA_BUF], buf2[SUBNETTOA_BUF]; + char buf3[16]; + char sa[SATOT_BUF]; + size_t sa_len, buf_len; + struct sockaddr_encap *key, *mask; + + KLIPS_PRINT(debug_radij, + "klips_debug:ipsec_rj_walker_procprint: " + "rn=0p%p, w0=0p%p\n", + rn, + w0); + if (rn->rj_b >= 0) { + return 0; + } + + key = rd_key(rd); + mask = rd_mask(rd); + + if (key == NULL || mask == NULL) { + return 0; + } + + buf_len = subnettoa(key->sen_ip_src, mask->sen_ip_src, 0, buf1, sizeof(buf1)); + if(key->sen_sport != 0) { + sprintf(buf1+buf_len-1, ":%d", ntohs(key->sen_sport)); + } + + buf_len = subnettoa(key->sen_ip_dst, mask->sen_ip_dst, 0, buf2, sizeof(buf2)); + if(key->sen_dport != 0) { + sprintf(buf2+buf_len-1, ":%d", ntohs(key->sen_dport)); + } + + buf3[0]='\0'; + if(key->sen_proto != 0) { + sprintf(buf3, ":%d", key->sen_proto); + } + + sa_len = satot(&ro->er_said, 'x', sa, sizeof(sa)); + w->len += ipsec_snprintf(w->buffer + w->len, + w->length - w->len, + "%-10d " + "%-18s -> %-18s => %s%s\n", + ro->er_count, + buf1, + buf2, + sa_len ? sa : " (error)", + buf3); + + { + /* snprintf can only fill the last character with NUL + * so the maximum useful character is w->length-1. + * However, if w->length == 0, we cannot go back. + * (w->length surely cannot be negative.) + */ + int max_content = w->length > 0? w->length-1 : 0; + + if (w->len >= max_content) { + /* we've done all that can fit -- stop treewalking */ + w->len = max_content; /* truncate crap */ + return -ENOBUFS; + } else { + const off_t pos = w->begin + w->len; /* file position of end of what we've generated */ + + if (pos <= w->offset) { + /* all is before first interesting character: + * discard, but note where we are. + */ + w->len = 0; + w->begin = pos; + } + return 0; + } + } +} +#endif /* CONFIG_PROC_FS */ + +int +ipsec_rj_walker_delete(struct radij_node *rn, void *w0) +{ + struct eroute *ro; + struct rjtentry *rd = (struct rjtentry *)rn; + struct radij_node *rn2; + int error; + struct sockaddr_encap *key, *mask; + + key = rd_key(rd); + mask = rd_mask(rd); + + if(!key || !mask) { + return -ENODATA; + } +#ifdef CONFIG_KLIPS_DEBUG + if(debug_radij) { + char buf1[SUBNETTOA_BUF], buf2[SUBNETTOA_BUF]; + subnettoa(key->sen_ip_src, mask->sen_ip_src, 0, buf1, sizeof(buf1)); + subnettoa(key->sen_ip_dst, mask->sen_ip_dst, 0, buf2, sizeof(buf2)); + KLIPS_PRINT(debug_radij, + "klips_debug:ipsec_rj_walker_delete: " + "deleting: %s -> %s\n", + buf1, + buf2); + } +#endif /* CONFIG_KLIPS_DEBUG */ + + if((error = rj_delete(key, mask, rnh, &rn2))) { + KLIPS_PRINT(debug_radij, + "klips_debug:ipsec_rj_walker_delete: " + "rj_delete failed with error=%d.\n", error); + return error; + } + + if(rn2 != rn) { + printk("klips_debug:ipsec_rj_walker_delete: " + "tried to delete a different node?!? This should never happen!\n"); + } + + ro = (struct eroute *)rn; + + if (ro->er_ident_s.data) + kfree(ro->er_ident_s.data); + if (ro->er_ident_d.data) + kfree(ro->er_ident_d.data); + + memset((caddr_t)rn, 0, sizeof (struct eroute)); + kfree(rn); + + return 0; +} + +/* + * $Log: ipsec_radij.c,v $ + * Revision 1.73.2.1 2006/10/06 21:39:26 paul + * Fix for 2.6.18+ only include linux/config.h if AUTOCONF_INCLUDED is not + * set. This is defined through autoconf.h which is included through the + * linux kernel build macros. + * + * Revision 1.73 2005/04/29 05:10:22 mcr + * removed from extraenous includes to make unit testing easier. + * + * Revision 1.72 2004/12/03 21:25:57 mcr + * compile time fixes for running on 2.6. + * still experimental. + * + * Revision 1.71 2004/07/10 19:11:18 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.70 2004/04/25 21:10:52 ken + * Pull in dhr's changes from FreeS/WAN 2.06 + * + * Revision 1.69 2004/04/06 02:49:26 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.68 2004/03/28 20:27:20 paul + * Included tested and confirmed fixes mcr made and dhr verified for + * snprint statements. Changed one other snprintf to use ipsec_snprintf + * so it wouldnt break compatibility with 2.0/2.2 kernels. Verified with + * dhr. (thanks dhr!) + * + * Revision 1.67.4.1 2004/04/05 04:30:46 mcr + * patches for alg-branch to compile/work with 2.x openswan + * + * Revision 1.67 2003/10/31 02:27:55 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.66.24.2 2003/10/29 01:30:41 mcr + * elimited "struct sa_id". + * + * Revision 1.66.24.1 2003/09/21 13:59:56 mcr + * pre-liminary X.509 patch - does not yet pass tests. + * + * Revision 1.66 2002/10/12 23:11:53 dhr + * + * [KenB + DHR] more 64-bit cleanup + * + * Revision 1.65 2002/09/20 05:01:40 rgb + * Added memory allocation debugging. + * + * Revision 1.64 2002/05/31 01:46:05 mcr + * added && sysctl_ipsec_debug_verbose verbose to ipsec_findroute + * as requested in PR#14. + * + * Revision 1.63 2002/05/23 07:14:11 rgb + * Cleaned up %p variants to 0p%p for test suite cleanup. + * + * Revision 1.62 2002/04/24 07:55:32 mcr + * #include patches and Makefiles for post-reorg compilation. + * + * Revision 1.61 2002/04/24 07:36:29 mcr + * Moved from ./klips/net/ipsec/ipsec_radij.c,v + * + * Revision 1.60 2002/02/19 23:59:45 rgb + * Removed redundant compiler directives. + * + * Revision 1.59 2002/02/06 04:13:47 mcr + * missing #ifdef CONFIG_IPSEC_DEBUG. + * + * Revision 1.58 2002/01/29 17:17:56 mcr + * moved include of ipsec_param.h to after include of linux/kernel.h + * otherwise, it seems that some option that is set in ipsec_param.h + * screws up something subtle in the include path to kernel.h, and + * it complains on the snprintf() prototype. + * + * Revision 1.57 2002/01/29 04:00:52 mcr + * more excise of kversions.h header. + * + * Revision 1.56 2002/01/29 02:13:17 mcr + * introduction of ipsec_kversion.h means that include of + * ipsec_param.h must preceed any decisions about what files to + * include to deal with differences in kernel source. + * + * Revision 1.55 2001/11/26 09:23:48 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.53.2.1 2001/09/25 02:26:32 mcr + * headers adjusted for new usage. + * + * Revision 1.54 2001/10/18 04:45:20 rgb + * 2.4.9 kernel deprecates linux/malloc.h in favour of linux/slab.h, + * lib/freeswan.h version macros moved to lib/kversions.h. + * Other compiler directive cleanups. + * + * Revision 1.53 2001/09/19 17:19:40 rgb + * Debug output bugfix for NetCelo's PF_KEY ident patch. + * + * Revision 1.52 2001/09/19 16:33:37 rgb + * Temporarily disable ident fields to /proc/net/ipsec_eroute. + * + * Revision 1.51 2001/09/15 16:24:04 rgb + * Re-inject first and last HOLD packet when an eroute REPLACE is done. + * + * Revision 1.50 2001/09/14 16:58:36 rgb + * Added support for storing the first and last packets through a HOLD. + * + * Revision 1.49 2001/09/08 21:13:32 rgb + * Added pfkey ident extension support for ISAKMPd. (NetCelo) + * + * Revision 1.48 2001/06/15 04:12:56 rgb + * Fixed kernel memory allocation error return code polarity bug. + * + * Revision 1.47 2001/06/14 19:35:09 rgb + * Update copyright date. + * + * Revision 1.46 2001/06/08 08:47:18 rgb + * Fixed for debug disabled. + * + * Revision 1.45 2001/05/27 06:12:11 rgb + * Added structures for pid, packet count and last access time to eroute. + * Added packet count to beginning of /proc/net/ipsec_eroute. + * + * Revision 1.44 2001/05/03 19:41:01 rgb + * Initialise error return variable. + * Use more appropriate return value for ipsec_rj_walker_delete(). + * + * Revision 1.43 2001/02/27 22:24:54 rgb + * Re-formatting debug output (line-splitting, joining, 1arg/line). + * Check for satoa() return codes. + * + * Revision 1.42 2001/02/27 06:21:57 rgb + * Added findroute success instrumentation. + * + * Revision 1.41 2000/11/06 04:32:08 rgb + * Ditched spin_lock_irqsave in favour of spin_lock_bh. + * + * Revision 1.40 2000/09/08 19:12:56 rgb + * Change references from DEBUG_IPSEC to CONFIG_IPSEC_DEBUG. + * + * Revision 1.39 2000/08/30 05:25:20 rgb + * Correct debug text in ipsec_breakroute() from incorrect + * "ipsec_callback". + * + * Revision 1.38 2000/07/28 14:58:31 rgb + * Changed kfree_s to kfree, eliminating extra arg to fix 2.4.0-test5. + * + * Revision 1.37 2000/03/16 14:02:50 rgb + * Fixed debug scope to enable compilation with debug off. + * + * Revision 1.36 2000/01/21 06:14:46 rgb + * Added debugging text to ipsec_rj_walker_delete(). + * Set return code to negative for consistency. + * + * Revision 1.35 1999/11/23 23:05:24 rgb + * Use provided macro ADDRTOA_BUF instead of hardcoded value. + * + * Revision 1.34 1999/11/18 04:13:56 rgb + * Replaced all kernel version macros to shorter, readable form. + * Added CONFIG_PROC_FS compiler directives in case it is shut off. + * + * Revision 1.33 1999/11/17 15:53:39 rgb + * Changed all occurrences of #include "../../../lib/freeswan.h" + * to #include which works due to -Ilibfreeswan in the + * klips/net/ipsec/Makefile. + * + * Revision 1.32 1999/10/26 13:58:33 rgb + * Put spinlock flags variable declaration outside the debug compiler + * directive to enable compilation with debug shut off. + * + * Revision 1.31 1999/10/15 22:13:29 rgb + * Clean out cruft. + * Align /proc/net/ipsec_eroute output for easier readability. + * Fix double linefeed in radij debug output. + * Fix double locking bug that locks up 2.0.36 but not 2.0.38. + * + * Revision 1.30 1999/10/08 18:37:33 rgb + * Fix end-of-line spacing to sate whining PHMs. + * + * Revision 1.29 1999/10/03 18:52:45 rgb + * Spinlock support for 2.0.xx. + * Dumb return code spin_unlock fix. + * + * Revision 1.28 1999/10/01 16:22:24 rgb + * Switch from assignment init. to functional init. of spinlocks. + * + * Revision 1.27 1999/10/01 15:44:53 rgb + * Move spinlock header include to 2.1> scope. + * + * Revision 1.26 1999/10/01 00:01:23 rgb + * Added eroute structure locking. + * + * Revision 1.25 1999/06/10 16:07:30 rgb + * Silence delete eroute on no debug. + * + * Revision 1.24 1999/05/09 03:25:36 rgb + * Fix bug introduced by 2.2 quick-and-dirty patch. + * + * Revision 1.23 1999/05/05 22:02:31 rgb + * Add a quick and dirty port to 2.2 kernels by Marc Boucher . + * + * Revision 1.22 1999/04/29 15:17:23 rgb + * Add return values to init and cleanup functions. + * Add sanity checking for null pointer arguments. + * + * Revision 1.21 1999/04/11 00:28:58 henry + * GPL boilerplate + * + * Revision 1.20 1999/04/06 04:54:26 rgb + * Fix/Add RCSID Id: and Log: bits to make PHMDs happy. This includes + * patch shell fixes. + * + * Revision 1.19 1999/02/17 16:50:35 rgb + * Clean out unused cruft. + * Consolidate for space and speed efficiency. + * Convert DEBUG_IPSEC to KLIPS_PRINT + * + * Revision 1.18 1999/01/22 06:22:06 rgb + * Cruft clean-out. + * 64-bit clean-up. + * + * Revision 1.17 1998/12/02 03:09:39 rgb + * Clean up debug printing conditionals to compile with debugging off. + * + * Revision 1.16 1998/12/01 13:49:39 rgb + * Wrap version info printing in debug switches. + * + * Revision 1.15 1998/11/30 13:22:54 rgb + * Rationalised all the klips kernel file headers. They are much shorter + * now and won't conflict under RH5.2. + * + * Revision 1.14 1998/10/31 06:48:17 rgb + * Fixed up comments in #endif directives. + * + * Revision 1.13 1998/10/27 13:48:09 rgb + * Cleaned up /proc/net/ipsec_* filesystem for easy parsing by scripts. + * Fixed less(1) truncated output bug. + * Code clean-up. + * + * Revision 1.12 1998/10/25 02:41:36 rgb + * Change return type on ipsec_breakroute and ipsec_makeroute and add an + * argument to be able to transmit more infomation about errors. + * Fix cut-and-paste debug statement identifier. + * + * Revision 1.11 1998/10/22 06:45:39 rgb + * Cleaned up cruft. + * Convert to use satoa for printk. + * + * Revision 1.10 1998/10/19 14:44:28 rgb + * Added inclusion of freeswan.h. + * sa_id structure implemented and used: now includes protocol. + * + * Revision 1.9 1998/10/09 04:30:52 rgb + * Added 'klips_debug' prefix to all klips printk debug statements. + * Deleted old commented out cruft. + * + * Revision 1.8 1998/08/06 17:24:23 rgb + * Fix addrtoa return code bug from stale manpage advice preventing packets + * from being erouted. + * + * Revision 1.7 1998/08/06 07:44:59 rgb + * Fixed /proc/net/ipsec_eroute subnettoa and addrtoa return value bug that + * ended up in nothing being printed. + * + * Revision 1.6 1998/08/05 22:16:41 rgb + * Cleanup to prevent cosmetic errors (ie. debug output) from being fatal. + * + * Revision 1.5 1998/07/29 20:38:44 rgb + * Debug and fix subnettoa and addrtoa output. + * + * Revision 1.4 1998/07/28 00:02:39 rgb + * Converting to exclusive use of addrtoa. + * Fix eroute delete. + * + * Revision 1.3 1998/07/14 18:21:26 rgb + * Add function to clear the eroute table. + * + * Revision 1.2 1998/06/23 02:59:14 rgb + * Added debugging output to eroute add/delete routines. + * + * Revision 1.9 1998/06/18 21:29:06 henry + * move sources from klips/src to klips/net/ipsec, to keep stupid kernel + * build scripts happier in presence of symbolic links + * + * Revision 1.8 1998/06/05 02:32:26 rgb + * Fix spi ntoh kernel debug output. + * + * Revision 1.7 1998/05/25 20:30:37 rgb + * Remove temporary ipsec_walk, rj_deltree and rj_delnodes functions. + * + * Rename ipsec_rj_walker (ipsec_walk) to ipsec_rj_walker_procprint and + * add ipsec_rj_walker_delete. + * + * Revision 1.6 1998/05/21 13:08:57 rgb + * Rewrote procinfo subroutines to avoid *bad things* when more that 3k of + * information is available for printout. + * + * Revision 1.5 1998/05/18 21:35:55 rgb + * Clean up output for numerical consistency and readability. Zero freed + * eroute memory. + * + * Revision 1.4 1998/04/21 21:28:58 rgb + * Rearrange debug switches to change on the fly debug output from user + * space. Only kernel changes checked in at this time. radij.c was also + * changed to temporarily remove buggy debugging code in rj_delete causing + * an OOPS and hence, netlink device open errors. + * + * Revision 1.3 1998/04/14 17:30:39 rgb + * Fix up compiling errors for radij tree memory reclamation. + * + * Revision 1.2 1998/04/12 22:03:23 rgb + * Updated ESP-3DES-HMAC-MD5-96, + * ESP-DES-HMAC-MD5-96, + * AH-HMAC-MD5-96, + * AH-HMAC-SHA1-96 since Henry started freeswan cvs repository + * from old standards (RFC182[5-9] to new (as of March 1998) drafts. + * + * Fixed eroute references in /proc/net/ipsec*. + * + * Started to patch module unloading memory leaks in ipsec_netlink and + * radij tree unloading. + * + * Revision 1.1 1998/04/09 03:06:10 henry + * sources moved up from linux/net/ipsec + * + * Revision 1.1.1.1 1998/04/08 05:35:03 henry + * RGB's ipsec-0.8pre2.tar.gz ipsec-0.8 + * + * Revision 0.4 1997/01/15 01:28:15 ji + * No changes. + * + * Revision 0.3 1996/11/20 14:39:04 ji + * Minor cleanups. + * Rationalized debugging code. + * + * Revision 0.2 1996/11/02 00:18:33 ji + * First limited release. + * + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ipsec_rcv.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,2317 @@ +/* + * receive code + * Copyright (C) 1996, 1997 John Ioannidis. + * Copyright (C) 1998-2003 Richard Guy Briggs. + * Copyright (C) 2004 Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +char ipsec_rcv_c_version[] = "RCSID $Id: ipsec_rcv.c,v 1.171.2.11 2007/04/28 20:46:40 paul Exp $"; + +#ifndef AUTOCONF_INCLUDED +#include +#endif +#include + +#define __NO_VERSION__ +#include +#include /* printk() */ + +#include "openswan/ipsec_param.h" + +#ifdef MALLOC_SLAB +# include /* kmalloc() */ +#else /* MALLOC_SLAB */ +# include /* kmalloc() */ +#endif /* MALLOC_SLAB */ +#include /* error codes */ +#include /* size_t */ +#include /* mark_bh */ + +#include /* struct device, and other headers */ +#include /* eth_type_trans */ +#include /* struct iphdr */ + +#include +#include +#include +#include +#ifdef SPINLOCK +# ifdef SPINLOCK_23 +# include /* *lock* */ +# else /* SPINLOCK_23 */ +# include /* *lock* */ +# endif /* SPINLOCK_23 */ +#endif /* SPINLOCK */ + +#include + +#include "openswan/ipsec_kern24.h" +#include "openswan/radij.h" +#include "openswan/ipsec_encap.h" +#include "openswan/ipsec_sa.h" + +#include "openswan/ipsec_radij.h" +#include "openswan/ipsec_xform.h" +#include "openswan/ipsec_tunnel.h" +#include "openswan/ipsec_rcv.h" + +#include "openswan/ipsec_auth.h" + +#include "openswan/ipsec_esp.h" + +#ifdef CONFIG_KLIPS_AH +#include "openswan/ipsec_ah.h" +#endif /* CONFIG_KLIPS_AH */ + +#ifdef CONFIG_KLIPS_IPCOMP +#include "openswan/ipsec_ipcomp.h" +#endif /* CONFIG_KLIPS_COMP */ + +#include +#include + +#include "openswan/ipsec_proto.h" +#include "openswan/ipsec_alg.h" +#include "openswan/ipsec_kern24.h" + +#ifdef CONFIG_KLIPS_DEBUG +int debug_rcv = 0; +#endif /* CONFIG_KLIPS_DEBUG */ + +int sysctl_ipsec_inbound_policy_check = 1; + +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL +#include +#endif + +/* This is a private use protocol, and AT&T should be ashamed. They should have + * used protocol # 59, which is "no next header" instead of 0xFE. + */ +#ifndef IPPROTO_ATT_HEARTBEAT +#define IPPROTO_ATT_HEARTBEAT 0xFE +#endif + +/* + * Check-replay-window routine, adapted from the original + * by J. Hughes, from draft-ietf-ipsec-esp-des-md5-03.txt + * + * This is a routine that implements a 64 packet window. This is intend- + * ed on being an implementation sample. + */ + +DEBUG_NO_STATIC int +ipsec_checkreplaywindow(struct ipsec_sa*ipsp, __u32 seq) +{ + __u32 diff; + + if (ipsp->ips_replaywin == 0) /* replay shut off */ + return 1; + if (seq == 0) + return 0; /* first == 0 or wrapped */ + + /* new larger sequence number */ + if (seq > ipsp->ips_replaywin_lastseq) { + return 1; /* larger is good */ + } + diff = ipsp->ips_replaywin_lastseq - seq; + + /* too old or wrapped */ /* if wrapped, kill off SA? */ + if (diff >= ipsp->ips_replaywin) { + return 0; + } + /* this packet already seen */ + if (ipsp->ips_replaywin_bitmap & (1 << diff)) + return 0; + return 1; /* out of order but good */ +} + +DEBUG_NO_STATIC int +ipsec_updatereplaywindow(struct ipsec_sa*ipsp, __u32 seq) +{ + __u32 diff; + + if (ipsp->ips_replaywin == 0) /* replay shut off */ + return 1; + if (seq == 0) + return 0; /* first == 0 or wrapped */ + + /* new larger sequence number */ + if (seq > ipsp->ips_replaywin_lastseq) { + diff = seq - ipsp->ips_replaywin_lastseq; + + /* In win, set bit for this pkt */ + if (diff < ipsp->ips_replaywin) + ipsp->ips_replaywin_bitmap = + (ipsp->ips_replaywin_bitmap << diff) | 1; + else + /* This packet has way larger seq num */ + ipsp->ips_replaywin_bitmap = 1; + + if(seq - ipsp->ips_replaywin_lastseq - 1 > ipsp->ips_replaywin_maxdiff) { + ipsp->ips_replaywin_maxdiff = seq - ipsp->ips_replaywin_lastseq - 1; + } + ipsp->ips_replaywin_lastseq = seq; + return 1; /* larger is good */ + } + diff = ipsp->ips_replaywin_lastseq - seq; + + /* too old or wrapped */ /* if wrapped, kill off SA? */ + if (diff >= ipsp->ips_replaywin) { +/* + if(seq < 0.25*max && ipsp->ips_replaywin_lastseq > 0.75*max) { + ipsec_sa_delchain(ipsp); + } +*/ + return 0; + } + /* this packet already seen */ + if (ipsp->ips_replaywin_bitmap & (1 << diff)) + return 0; + ipsp->ips_replaywin_bitmap |= (1 << diff); /* mark as seen */ + return 1; /* out of order but good */ +} + +#ifdef CONFIG_KLIPS_AUTH_HMAC_MD5 +struct auth_alg ipsec_rcv_md5[]={ + {osMD5Init, osMD5Update, osMD5Final, AHMD596_ALEN} +}; + +#endif /* CONFIG_KLIPS_AUTH_HMAC_MD5 */ + +#ifdef CONFIG_KLIPS_AUTH_HMAC_SHA1 +struct auth_alg ipsec_rcv_sha1[]={ + {SHA1Init, SHA1Update, SHA1Final, AHSHA196_ALEN} +}; +#endif /* CONFIG_KLIPS_AUTH_HMAC_MD5 */ + +/* + * decapsulate a single layer of the system + * + * the following things should be setup to enter this function. + * + * irs->stats == stats structure (or NULL) + * irs->ipp = IP header. + * irs->len = total length of packet + * skb->nh.iph = ipp; + * skb->h.raw = start of payload + * irs->ipsp = NULL. + * irs->iphlen = N/A = is recalculated. + * irs->ilen = 0; + * irs->authlen = 0; + * irs->authfuncs = NULL; + * irs->skb = the skb; + * + * proto_funcs should be from ipsec_esp.c, ipsec_ah.c or ipsec_ipcomp.c. + * + */ +enum ipsec_rcv_value +ipsec_rcv_decap_once(struct ipsec_rcv_state *irs + , struct xform_functions *proto_funcs) +{ + int iphlen; + __u8 proto; + struct in_addr ipsaddr; + struct in_addr ipdaddr; + int replay = 0; /* replay value in AH or ESP packet */ + struct ipsec_sa* ipsnext = NULL; /* next SA towards inside of packet */ + struct ipsec_sa *newipsp; + struct iphdr *ipp; + struct sk_buff *skb; + struct ipsec_alg_auth *ixt_a=NULL; + + skb = irs->skb; + irs->len = skb->len; + ipp = irs->ipp; + proto = ipp->protocol; + ipsaddr.s_addr = ipp->saddr; + addrtoa(ipsaddr, 0, irs->ipsaddr_txt, sizeof(irs->ipsaddr_txt)); + ipdaddr.s_addr = ipp->daddr; + addrtoa(ipdaddr, 0, irs->ipdaddr_txt, sizeof(irs->ipdaddr_txt)); + + iphlen = ipp->ihl << 2; + irs->iphlen=iphlen; + ipp->check = 0; /* we know the sum is good */ + + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv_decap_once: " + "decap (%d) from %s -> %s\n", + proto, irs->ipsaddr_txt, irs->ipdaddr_txt); + + /* + * Find tunnel control block and (indirectly) call the + * appropriate tranform routine. The resulting sk_buf + * is a valid IP packet ready to go through input processing. + */ + + irs->said.dst.u.v4.sin_addr.s_addr = ipp->daddr; + irs->said.dst.u.v4.sin_family = AF_INET; + + /* note: rcv_checks set up the said.spi value, if appropriate */ + if(proto_funcs->rcv_checks) { + enum ipsec_rcv_value retval = + (*proto_funcs->rcv_checks)(irs, skb); + + if(retval < 0) { + return retval; + } + } + + irs->said.proto = proto; + irs->sa_len = satot(&irs->said, 0, irs->sa, sizeof(irs->sa)); + if(irs->sa_len == 0) { + strcpy(irs->sa, "(error)"); + } + + newipsp = ipsec_sa_getbyid(&irs->said); + if (newipsp == NULL) { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "no ipsec_sa for SA:%s: incoming packet with no SA dropped\n", + irs->sa_len ? irs->sa : " (error)"); + if(irs->stats) { + irs->stats->rx_dropped++; + } + return IPSEC_RCV_SAIDNOTFOUND; + } + + /* MCR - XXX this is bizarre. ipsec_sa_getbyid returned it, having + * incremented the refcount, why in the world would we decrement it + * here? */ + /* ipsec_sa_put(irs->ipsp);*/ /* incomplete */ + + /* If it is in larval state, drop the packet, we cannot process yet. */ + if(newipsp->ips_state == SADB_SASTATE_LARVAL) { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "ipsec_sa in larval state, cannot be used yet, dropping packet.\n"); + if(irs->stats) { + irs->stats->rx_dropped++; + } + ipsec_sa_put(newipsp); + return IPSEC_RCV_SAIDNOTLIVE; + } + + if(newipsp->ips_state == SADB_SASTATE_DEAD) { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "ipsec_sa in dead state, cannot be used any more, dropping packet.\n"); + if(irs->stats) { + irs->stats->rx_dropped++; + } + ipsec_sa_put(newipsp); + return IPSEC_RCV_SAIDNOTLIVE; + } + + if(sysctl_ipsec_inbound_policy_check) { + if(irs->ipp->saddr != ((struct sockaddr_in*)(newipsp->ips_addr_s))->sin_addr.s_addr) { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "SA:%s, src=%s of pkt does not agree with expected SA source address policy.\n", + irs->sa_len ? irs->sa : " (error)", + irs->ipsaddr_txt); + if(irs->stats) { + irs->stats->rx_dropped++; + } + ipsec_sa_put(newipsp); + return IPSEC_RCV_FAILEDINBOUND; + } + + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "SA:%s, src=%s of pkt agrees with expected SA source address policy.\n", + irs->sa_len ? irs->sa : " (error)", + irs->ipsaddr_txt); + + /* + * at this point, we have looked up a new SA, and we want to make sure that if this + * isn't the first SA in the list, that the previous SA actually points at this one. + */ + if(irs->ipsp) { + if(irs->ipsp->ips_inext != newipsp) { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "unexpected SA:%s: does not agree with ips->inext policy, dropped\n", + irs->sa_len ? irs->sa : " (error)"); + if(irs->stats) { + irs->stats->rx_dropped++; + } + ipsec_sa_put(newipsp); + return IPSEC_RCV_FAILEDINBOUND; + } + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "SA:%s grouping from previous SA is OK.\n", + irs->sa_len ? irs->sa : " (error)"); + } else { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "SA:%s First SA in group.\n", + irs->sa_len ? irs->sa : " (error)"); + } + + + + + +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL + if (proto == IPPROTO_ESP) { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "natt_type=%u tdbp->ips_natt_type=%u : %s\n", + irs->natt_type, newipsp->ips_natt_type, + (irs->natt_type==newipsp->ips_natt_type)?"ok":"bad"); + if (irs->natt_type != newipsp->ips_natt_type) { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "SA:%s does not agree with expected NAT-T policy.\n", + irs->sa_len ? irs->sa : " (error)"); + if(irs->stats) { + irs->stats->rx_dropped++; + } + ipsec_sa_put(newipsp); + return IPSEC_RCV_FAILEDINBOUND; + } + } +#endif + } + + /* okay, SA checks out, so free any previous SA, and record a new one*/ + + if(irs->ipsp) { + ipsec_sa_put(irs->ipsp); + } + irs->ipsp=newipsp; + + /* note that the outer code will free the irs->ipsp + if there is an error */ + + + /* now check the lifetimes */ + if(ipsec_lifetime_check(&irs->ipsp->ips_life.ipl_bytes, "bytes", + irs->sa, ipsec_life_countbased, ipsec_incoming, + irs->ipsp) == ipsec_life_harddied || + ipsec_lifetime_check(&irs->ipsp->ips_life.ipl_addtime, "addtime", + irs->sa, ipsec_life_timebased, ipsec_incoming, + irs->ipsp) == ipsec_life_harddied || + ipsec_lifetime_check(&irs->ipsp->ips_life.ipl_addtime, "usetime", + irs->sa, ipsec_life_timebased, ipsec_incoming, + irs->ipsp) == ipsec_life_harddied || + ipsec_lifetime_check(&irs->ipsp->ips_life.ipl_packets, "packets", + irs->sa, ipsec_life_countbased, ipsec_incoming, + irs->ipsp) == ipsec_life_harddied) { + ipsec_sa_delchain(irs->ipsp); + if(irs->stats) { + irs->stats->rx_dropped++; + } + + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv_decap_once: " + "decap (%d) failed lifetime check\n", + proto); + + return IPSEC_RCV_LIFETIMEFAILED; + } + +#if 0 + /* + * This is removed for some reasons: + * 1) it needs to happen *after* authentication. + * 2) do we really care, if it authenticates, if it came + * from the wrong location? + * 3) the NAT_KA messages in IKE will also get to pluto + * and it will figure out that stuff has moved. + * 4) the 2.6 udp-esp encap function does not pass us + * the originating port number, and I can't tell + * if skb->sk is guaranteed to be valid here. + * 2005-04-16: mcr@xelerance.com + */ +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL + /* + * + * XXX we should ONLY update pluto if the SA passes all checks, + * which we clearly do not now. + */ + if ((irs->natt_type) && + ( (irs->ipp->saddr != (((struct sockaddr_in*)(newipsp->ips_addr_s))->sin_addr.s_addr)) || + (irs->natt_sport != newipsp->ips_natt_sport) + )) { + struct sockaddr sipaddr; + struct sockaddr_in *psin = (struct sockaddr_in*)(newipsp->ips_addr_s); + + /** Advertise NAT-T addr change to pluto **/ + sipaddr.sa_family = AF_INET; + ((struct sockaddr_in*)&sipaddr)->sin_addr.s_addr = irs->ipp->saddr; + ((struct sockaddr_in*)&sipaddr)->sin_port = htons(irs->natt_sport); + pfkey_nat_t_new_mapping(newipsp, &sipaddr, irs->natt_sport); + + /** + * Then allow or block packet depending on + * sysctl_ipsec_inbound_policy_check. + * + * In all cases, pluto will update SA if new mapping is + * accepted. + */ + if (sysctl_ipsec_inbound_policy_check) { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "SA:%s, src=%s:%u of pkt does not agree with expected " + "SA source address [%08x:%u] (notifying pluto of change).\n", + irs->sa_len ? irs->sa : " (error)", + irs->ipsaddr_txt, irs->natt_sport, + psin->sin_addr.s_addr, + newipsp->ips_natt_sport); + if(irs->stats) { + irs->stats->rx_dropped++; + } + ipsec_sa_put(newipsp); + return IPSEC_RCV_FAILEDINBOUND; + } + } +#endif +#endif + + irs->authfuncs=NULL; + + /* authenticate, if required */ + if ((ixt_a=irs->ipsp->ips_alg_auth)) { + irs->authlen = AHHMAC_HASHLEN; + irs->authfuncs = NULL; + irs->ictx = NULL; + irs->octx = NULL; + irs->ictx_len = 0; + irs->octx_len = 0; + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "authalg=%d authlen=%d\n", + irs->ipsp->ips_authalg, + irs->authlen); + } else + switch(irs->ipsp->ips_authalg) { +#ifdef CONFIG_KLIPS_AUTH_HMAC_MD5 + case AH_MD5: + irs->authlen = AHHMAC_HASHLEN; + irs->authfuncs = ipsec_rcv_md5; + irs->ictx = (void *)&((struct md5_ctx*)(irs->ipsp->ips_key_a))->ictx; + irs->octx = (void *)&((struct md5_ctx*)(irs->ipsp->ips_key_a))->octx; + irs->ictx_len = sizeof(((struct md5_ctx*)(irs->ipsp->ips_key_a))->ictx); + irs->octx_len = sizeof(((struct md5_ctx*)(irs->ipsp->ips_key_a))->octx); + break; +#endif /* CONFIG_KLIPS_AUTH_HMAC_MD5 */ +#ifdef CONFIG_KLIPS_AUTH_HMAC_SHA1 + case AH_SHA: + irs->authlen = AHHMAC_HASHLEN; + irs->authfuncs = ipsec_rcv_sha1; + irs->ictx = (void *)&((struct sha1_ctx*)(irs->ipsp->ips_key_a))->ictx; + irs->octx = (void *)&((struct sha1_ctx*)(irs->ipsp->ips_key_a))->octx; + irs->ictx_len = sizeof(((struct sha1_ctx*)(irs->ipsp->ips_key_a))->ictx); + irs->octx_len = sizeof(((struct sha1_ctx*)(irs->ipsp->ips_key_a))->octx); + break; +#endif /* CONFIG_KLIPS_AUTH_HMAC_SHA1 */ + case AH_NONE: + irs->authlen = 0; + irs->authfuncs = NULL; + irs->ictx = NULL; + irs->octx = NULL; + irs->ictx_len = 0; + irs->octx_len = 0; + break; + default: + irs->ipsp->ips_errs.ips_alg_errs += 1; + if(irs->stats) { + irs->stats->rx_errors++; + } + return IPSEC_RCV_BADAUTH; + } + + /* ilen counts number of bytes in ESP portion */ + irs->ilen = ((skb->data + skb->len) - skb->h.raw) - irs->authlen; + if(irs->ilen <= 0) { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "runt %s packet with no data, dropping.\n", + (proto == IPPROTO_ESP ? "esp" : "ah")); + if(irs->stats) { + irs->stats->rx_dropped++; + } + return IPSEC_RCV_BADLEN; + } + + if(irs->authfuncs || ixt_a) { + unsigned char *authenticator = NULL; + + if(proto_funcs->rcv_setup_auth) { + enum ipsec_rcv_value retval + = (*proto_funcs->rcv_setup_auth)(irs, skb, + &replay, + &authenticator); + if(retval < 0) { + return retval; + } + } + + if(!authenticator) { + irs->ipsp->ips_errs.ips_auth_errs += 1; + if(irs->stats) { + irs->stats->rx_dropped++; + } + return IPSEC_RCV_BADAUTH; + } + + if(!ipsec_checkreplaywindow(irs->ipsp, replay)) { + irs->ipsp->ips_errs.ips_replaywin_errs += 1; + KLIPS_PRINT(debug_rcv & DB_RX_REPLAY, + "klips_debug:ipsec_rcv: " + "duplicate frame from %s, packet dropped\n", + irs->ipsaddr_txt); + if(irs->stats) { + irs->stats->rx_dropped++; + } + return IPSEC_RCV_REPLAYFAILED; + } + + /* + * verify authenticator + */ + + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "encalg = %d, authalg = %d.\n", + irs->ipsp->ips_encalg, + irs->ipsp->ips_authalg); + + /* calculate authenticator */ + if(proto_funcs->rcv_calc_auth == NULL) { + return IPSEC_RCV_BADAUTH; + } + (*proto_funcs->rcv_calc_auth)(irs, skb); + + if (memcmp(irs->hash, authenticator, irs->authlen)) { + irs->ipsp->ips_errs.ips_auth_errs += 1; + KLIPS_PRINT(debug_rcv & DB_RX_INAU, + "klips_debug:ipsec_rcv: " + "auth failed on incoming packet from %s: hash=%08x%08x%08x auth=%08x%08x%08x, dropped\n", + irs->ipsaddr_txt, + ntohl(*(__u32*)&irs->hash[0]), + ntohl(*(__u32*)&irs->hash[4]), + ntohl(*(__u32*)&irs->hash[8]), + ntohl(*(__u32*)authenticator), + ntohl(*((__u32*)authenticator + 1)), + ntohl(*((__u32*)authenticator + 2))); + if(irs->stats) { + irs->stats->rx_dropped++; + } + return IPSEC_RCV_AUTHFAILED; + } else { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "authentication successful.\n"); + } + + /* Crypto hygiene: clear memory used to calculate autheticator. + * The length varies with the algorithm. + */ + memset(irs->hash, 0, irs->authlen); + + /* If the sequence number == 0, expire SA, it had rolled */ + if(irs->ipsp->ips_replaywin && !replay /* !irs->ipsp->ips_replaywin_lastseq */) { + ipsec_sa_delchain(irs->ipsp); + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "replay window counter rolled, expiring SA.\n"); + if(irs->stats) { + irs->stats->rx_dropped++; + } + return IPSEC_RCV_REPLAYROLLED; + } + + /* now update the replay counter */ + if (!ipsec_updatereplaywindow(irs->ipsp, replay)) { + irs->ipsp->ips_errs.ips_replaywin_errs += 1; + KLIPS_PRINT(debug_rcv & DB_RX_REPLAY, + "klips_debug:ipsec_rcv: " + "duplicate frame from %s, packet dropped\n", + irs->ipsaddr_txt); + if(irs->stats) { + irs->stats->rx_dropped++; + } + return IPSEC_RCV_REPLAYROLLED; + } + } + + if(proto_funcs->rcv_decrypt) { + enum ipsec_rcv_value retval = + (*proto_funcs->rcv_decrypt)(irs); + + if(retval != IPSEC_RCV_OK) { + return retval; + } + } + + /* + * Adjust pointers + */ + skb = irs->skb; + irs->len = skb->len; + ipp = irs->ipp = skb->nh.iph; + iphlen = ipp->ihl<<2; + skb->h.raw = skb->nh.raw + iphlen; + + /* zero any options that there might be */ + memset(&(IPCB(skb)->opt), 0, sizeof(struct ip_options)); + + ipsaddr.s_addr = ipp->saddr; + addrtoa(ipsaddr, 0, irs->ipsaddr_txt, sizeof(irs->ipsaddr_txt)); + ipdaddr.s_addr = ipp->daddr; + addrtoa(ipdaddr, 0, irs->ipdaddr_txt, sizeof(irs->ipdaddr_txt)); + + /* + * Discard the original ESP/AH header + */ + ipp->protocol = irs->next_header; + + ipp->check = 0; /* NOTE: this will be included in checksum */ + ipp->check = ip_fast_csum((unsigned char *)skb->nh.iph, iphlen >> 2); + + KLIPS_PRINT(debug_rcv & DB_RX_PKTRX, + "klips_debug:ipsec_rcv: " + "after <%s%s%s>, SA:%s:\n", + IPS_XFORM_NAME(irs->ipsp), + irs->sa_len ? irs->sa : " (error)"); + KLIPS_IP_PRINT(debug_rcv & DB_RX_PKTRX, ipp); + + skb->protocol = htons(ETH_P_IP); + skb->ip_summed = 0; + + ipsnext = irs->ipsp->ips_inext; + if(sysctl_ipsec_inbound_policy_check) { + if(ipsnext) { + if( + ipp->protocol != IPPROTO_AH + && ipp->protocol != IPPROTO_ESP +#ifdef CONFIG_KLIPS_IPCOMP + && ipp->protocol != IPPROTO_COMP + && (ipsnext->ips_said.proto != IPPROTO_COMP + || ipsnext->ips_inext) +#endif /* CONFIG_KLIPS_IPCOMP */ + && ipp->protocol != IPPROTO_IPIP + && ipp->protocol != IPPROTO_ATT_HEARTBEAT /* heartbeats to AT&T SIG/GIG */ + ) { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "packet with incomplete policy dropped, last successful SA:%s.\n", + irs->sa_len ? irs->sa : " (error)"); + if(irs->stats) { + irs->stats->rx_dropped++; + } + return IPSEC_RCV_FAILEDINBOUND; + } + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "SA:%s, Another IPSEC header to process.\n", + irs->sa_len ? irs->sa : " (error)"); + } else { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "No ips_inext from this SA:%s.\n", + irs->sa_len ? irs->sa : " (error)"); + } + } + +#ifdef CONFIG_KLIPS_IPCOMP + /* update ipcomp ratio counters, even if no ipcomp packet is present */ + if (ipsnext + && ipsnext->ips_said.proto == IPPROTO_COMP + && ipp->protocol != IPPROTO_COMP) { + ipsnext->ips_comp_ratio_cbytes += ntohs(ipp->tot_len); + ipsnext->ips_comp_ratio_dbytes += ntohs(ipp->tot_len); + } +#endif /* CONFIG_KLIPS_IPCOMP */ + + irs->ipsp->ips_life.ipl_bytes.ipl_count += irs->len; + irs->ipsp->ips_life.ipl_bytes.ipl_last = irs->len; + + if(!irs->ipsp->ips_life.ipl_usetime.ipl_count) { + irs->ipsp->ips_life.ipl_usetime.ipl_count = jiffies / HZ; + } + irs->ipsp->ips_life.ipl_usetime.ipl_last = jiffies / HZ; + irs->ipsp->ips_life.ipl_packets.ipl_count += 1; + +#ifdef CONFIG_NETFILTER + if(proto == IPPROTO_ESP || proto == IPPROTO_AH) { + skb->nfmark = (skb->nfmark & (~(IPsecSAref2NFmark(IPSEC_SA_REF_MASK)))) + | IPsecSAref2NFmark(IPsecSA2SAref(irs->ipsp)); + KLIPS_PRINT(debug_rcv & DB_RX_PKTRX, + "klips_debug:ipsec_rcv: " + "%s SA sets skb->nfmark=0x%x.\n", + proto == IPPROTO_ESP ? "ESP" : "AH", + (unsigned)skb->nfmark); + } +#endif /* CONFIG_NETFILTER */ + + return IPSEC_RCV_OK; +} + + +/* + * core decapsulation loop for all protocols. + * + * the following things should be setup to enter this function. + * + * irs->stats == stats structure (or NULL) + * irs->ipp = IP header. + * irs->ipsp = NULL. + * irs->ilen = 0; + * irs->authlen = 0; + * irs->authfuncs = NULL; + * irs->skb = skb; + * skb->nh.iph = ipp; + * skb->h.raw = start of payload + * + */ +int ipsec_rcv_decap(struct ipsec_rcv_state *irs) +{ + struct ipsec_sa *ipsp = NULL; + struct ipsec_sa* ipsnext = NULL; + struct in_addr ipsaddr; + struct in_addr ipdaddr; + struct iphdr *ipp; + struct sk_buff *skb = NULL; + + /* begin decapsulating loop here */ + + /* + The spinlock is to prevent any other process from + accessing or deleting the ipsec_sa hash table or any of the + ipsec_sa s while we are using and updating them. + + This is not optimal, but was relatively straightforward + at the time. A better way to do it has been planned for + more than a year, to lock the hash table and put reference + counts on each ipsec_sa instead. This is not likely to happen + in KLIPS1 unless a volunteer contributes it, but will be + designed into KLIPS2. + */ + spin_lock(&tdb_lock); + + do { + int decap_stat; + struct xform_functions *proto_funcs; + + switch(irs->ipp->protocol) { + case IPPROTO_ESP: + proto_funcs = esp_xform_funcs; + break; + +#ifdef CONFIG_KLIPS_AH + case IPPROTO_AH: + proto_funcs = ah_xform_funcs; + break; +#endif /* !CONFIG_KLIPS_AH */ + +#ifdef CONFIG_KLIPS_IPCOMP + case IPPROTO_COMP: + proto_funcs = ipcomp_xform_funcs; + break; +#endif /* !CONFIG_KLIPS_IPCOMP */ + default: + if(irs->stats) { + irs->stats->rx_errors++; + } + decap_stat = IPSEC_RCV_BADPROTO; + goto rcvleave; + } + + decap_stat = ipsec_rcv_decap_once(irs, proto_funcs); + + if(decap_stat != IPSEC_RCV_OK) { + spin_unlock(&tdb_lock); + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: decap_once failed: %d\n", + decap_stat); + + goto rcvleave; + } + /* end decapsulation loop here */ + } while( (irs->ipp->protocol == IPPROTO_ESP ) + || (irs->ipp->protocol == IPPROTO_AH ) +#ifdef CONFIG_KLIPS_IPCOMP + || (irs->ipp->protocol == IPPROTO_COMP) +#endif /* CONFIG_KLIPS_IPCOMP */ + ); + + /* set up for decap loop */ + ipp =irs->ipp; + ipsp =irs->ipsp; + ipsnext = ipsp->ips_inext; + skb = irs->skb; + + /* if there is an IPCOMP, but we don't have an IPPROTO_COMP, + * then we can just skip it + */ +#ifdef CONFIG_KLIPS_IPCOMP + if(ipsnext && ipsnext->ips_said.proto == IPPROTO_COMP) { + ipsp = ipsnext; + ipsnext = ipsp->ips_inext; + } +#endif /* CONFIG_KLIPS_IPCOMP */ + +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL + if ((irs->natt_type) && (ipp->protocol != IPPROTO_IPIP)) { + /** + * NAT-Traversal and Transport Mode: + * we need to correct TCP/UDP checksum + * + * If we've got NAT-OA, we can fix checksum without recalculation. + */ + __u32 natt_oa = ipsp->ips_natt_oa ? + ((struct sockaddr_in*)(ipsp->ips_natt_oa))->sin_addr.s_addr : 0; + __u16 pkt_len = skb->tail - (unsigned char *)ipp; + __u16 data_len = pkt_len - (ipp->ihl << 2); + + switch (ipp->protocol) { + case IPPROTO_TCP: + if (data_len >= sizeof(struct tcphdr)) { + struct tcphdr *tcp = skb->h.th; + if (natt_oa) { + __u32 buff[2] = { ~natt_oa, ipp->saddr }; + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "NAT-T & TRANSPORT: " + "fix TCP checksum using NAT-OA\n"); + tcp->check = csum_fold( + csum_partial((unsigned char *)buff, sizeof(buff), + tcp->check^0xffff)); + } + else { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "NAT-T & TRANSPORT: recalc TCP checksum\n"); + if (pkt_len > (ntohs(ipp->tot_len))) + data_len -= (pkt_len - ntohs(ipp->tot_len)); + tcp->check = 0; + tcp->check = csum_tcpudp_magic(ipp->saddr, ipp->daddr, + data_len, IPPROTO_TCP, + csum_partial((unsigned char *)tcp, data_len, 0)); + } + } + else { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "NAT-T & TRANSPORT: can't fix TCP checksum\n"); + } + break; + case IPPROTO_UDP: + if (data_len >= sizeof(struct udphdr)) { + struct udphdr *udp = skb->h.uh; + if (udp->check == 0) { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "NAT-T & TRANSPORT: UDP checksum already 0\n"); + } + else if (natt_oa) { + __u32 buff[2] = { ~natt_oa, ipp->saddr }; + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "NAT-T & TRANSPORT: " + "fix UDP checksum using NAT-OA\n"); +#ifdef DISABLE_UDP_CHECKSUM + udp->check=0 + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "NAT-T & TRANSPORT: " + "UDP checksum using NAT-OA disabled at compile time\n"); +#else + udp->check = csum_fold( + csum_partial((unsigned char *)buff, sizeof(buff), + udp->check^0xffff)); +#endif + } + else { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "NAT-T & TRANSPORT: zero UDP checksum\n"); + udp->check = 0; + } + } + else { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "NAT-T & TRANSPORT: can't fix UDP checksum\n"); + } + break; + default: + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "NAT-T & TRANSPORT: non TCP/UDP packet -- do nothing\n"); + break; + } + } +#endif + + /* + * XXX this needs to be locked from when it was first looked + * up in the decapsulation loop. Perhaps it is better to put + * the IPIP decap inside the loop. + */ + if(ipsnext) { + ipsp = ipsnext; + irs->sa_len = satot(&irs->said, 0, irs->sa, sizeof(irs->sa)); + if((ipp->protocol != IPPROTO_IPIP) && + (ipp->protocol != IPPROTO_ATT_HEARTBEAT)) { /* AT&T heartbeats to SIG/GIG */ + spin_unlock(&tdb_lock); + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "SA:%s, Hey! How did this get through? Dropped.\n", + irs->sa_len ? irs->sa : " (error)"); + if(irs->stats) { + irs->stats->rx_dropped++; + } + goto rcvleave; + } + if(sysctl_ipsec_inbound_policy_check) { + struct sockaddr_in *psin = (struct sockaddr_in*)(ipsp->ips_addr_s); + if((ipsnext = ipsp->ips_inext)) { + char sa2[SATOT_BUF]; + size_t sa_len2; + sa_len2 = satot(&ipsnext->ips_said, 0, sa2, sizeof(sa2)); + spin_unlock(&tdb_lock); + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "unexpected SA:%s after IPIP SA:%s\n", + sa_len2 ? sa2 : " (error)", + irs->sa_len ? irs->sa : " (error)"); + if(irs->stats) { + irs->stats->rx_dropped++; + } + goto rcvleave; + } + if(ipp->saddr != psin->sin_addr.s_addr) { + spin_unlock(&tdb_lock); + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "SA:%s, src=%s(%08x) does match expected 0x%08x.\n", + irs->sa_len ? irs->sa : " (error)", + irs->ipsaddr_txt, + ipp->saddr, psin->sin_addr.s_addr); + if(irs->stats) { + irs->stats->rx_dropped++; + } + goto rcvleave; + } + } + + if(ipp->protocol == IPPROTO_IPIP) /* added to support AT&T heartbeats to SIG/GIG */ + { + /* + * XXX this needs to be locked from when it was first looked + * up in the decapsulation loop. Perhaps it is better to put + * the IPIP decap inside the loop. + */ + ipsp->ips_life.ipl_bytes.ipl_count += skb->len; + ipsp->ips_life.ipl_bytes.ipl_last = skb->len; + + if(!ipsp->ips_life.ipl_usetime.ipl_count) { + ipsp->ips_life.ipl_usetime.ipl_count = jiffies / HZ; + } + ipsp->ips_life.ipl_usetime.ipl_last = jiffies / HZ; + ipsp->ips_life.ipl_packets.ipl_count += 1; + + if(skb->len < irs->iphlen) { + spin_unlock(&tdb_lock); + printk(KERN_WARNING "klips_debug:ipsec_rcv: " + "tried to skb_pull iphlen=%d, %d available. This should never happen, please report.\n", + irs->iphlen, + (int)(skb->len)); + + goto rcvleave; + } + + /* + * we need to pull up by size of IP header, + * options, but also by any UDP/ESP encap there might + * have been, and this deals with all cases. + */ + skb_pull(skb, (skb->h.raw - skb->nh.raw)); + + /* new L3 header is where L4 payload was */ + skb->nh.raw = skb->h.raw; + + /* now setup new L4 payload location */ + ipp = (struct iphdr *)skb->nh.raw; + skb->h.raw = skb->nh.raw + (ipp->ihl << 2); + + + /* remove any saved options that we might have, + * since we have a new IP header. + */ + memset(&(IPCB(skb)->opt), 0, sizeof(struct ip_options)); + +#if 0 + KLIPS_PRINT(debug_rcv, "csum: %d\n", ip_fast_csum((u8 *)ipp, ipp->ihl)); +#endif + + /* re-do any strings for debugging */ + ipsaddr.s_addr = ipp->saddr; + addrtoa(ipsaddr, 0, irs->ipsaddr_txt, sizeof(irs->ipsaddr_txt)); + ipdaddr.s_addr = ipp->daddr; + addrtoa(ipdaddr, 0, irs->ipdaddr_txt, sizeof(irs->ipdaddr_txt)); + + skb->protocol = htons(ETH_P_IP); + skb->ip_summed = 0; + KLIPS_PRINT(debug_rcv & DB_RX_PKTRX, + "klips_debug:ipsec_rcv: " + "IPIP tunnel stripped.\n"); + KLIPS_IP_PRINT(debug_rcv & DB_RX_PKTRX, ipp); + } + + if(sysctl_ipsec_inbound_policy_check + /* + Note: "xor" (^) logically replaces "not equal" + (!=) and "bitwise or" (|) logically replaces + "boolean or" (||). This is done to speed up + execution by doing only bitwise operations and + no branch operations + */ + && (((ipp->saddr & ipsp->ips_mask_s.u.v4.sin_addr.s_addr) + ^ ipsp->ips_flow_s.u.v4.sin_addr.s_addr) + | ((ipp->daddr & ipsp->ips_mask_d.u.v4.sin_addr.s_addr) + ^ ipsp->ips_flow_d.u.v4.sin_addr.s_addr)) ) + { + char sflow_txt[SUBNETTOA_BUF], dflow_txt[SUBNETTOA_BUF]; + + subnettoa(ipsp->ips_flow_s.u.v4.sin_addr, + ipsp->ips_mask_s.u.v4.sin_addr, + 0, sflow_txt, sizeof(sflow_txt)); + subnettoa(ipsp->ips_flow_d.u.v4.sin_addr, + ipsp->ips_mask_d.u.v4.sin_addr, + 0, dflow_txt, sizeof(dflow_txt)); + spin_unlock(&tdb_lock); + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "SA:%s, inner tunnel policy [%s -> %s] does not agree with pkt contents [%s -> %s].\n", + irs->sa_len ? irs->sa : " (error)", + sflow_txt, + dflow_txt, + irs->ipsaddr_txt, + irs->ipdaddr_txt); + if(irs->stats) { + irs->stats->rx_dropped++; + } + goto rcvleave; + } +#ifdef CONFIG_NETFILTER + skb->nfmark = (skb->nfmark & (~(IPsecSAref2NFmark(IPSEC_SA_REF_TABLE_MASK)))) + | IPsecSAref2NFmark(IPsecSA2SAref(ipsp)); + KLIPS_PRINT(debug_rcv & DB_RX_PKTRX, + "klips_debug:ipsec_rcv: " + "IPIP SA sets skb->nfmark=0x%x.\n", + (unsigned)skb->nfmark); +#endif /* CONFIG_NETFILTER */ + } + + spin_unlock(&tdb_lock); + + if(irs->stats) { + irs->stats->rx_bytes += skb->len; + } + if(skb->dst) { + dst_release(skb->dst); + skb->dst = NULL; + } + skb->pkt_type = PACKET_HOST; + if(irs->hard_header_len && + (skb->mac.raw != (skb->nh.raw - irs->hard_header_len)) && + (irs->hard_header_len <= skb_headroom(skb))) { + /* copy back original MAC header */ + memmove(skb->nh.raw - irs->hard_header_len, + skb->mac.raw, irs->hard_header_len); + skb->mac.raw = skb->nh.raw - irs->hard_header_len; + } + +#ifdef CONFIG_KLIPS_IPCOMP + if(ipp->protocol == IPPROTO_COMP) { + unsigned int flags = 0; + + if(sysctl_ipsec_inbound_policy_check) { + KLIPS_PRINT(debug_rcv & DB_RX_PKTRX, + "klips_debug:ipsec_rcv: " + "inbound policy checking enabled, IPCOMP follows IPIP, dropped.\n"); + if (irs->stats) { + irs->stats->rx_errors++; + } + goto rcvleave; + } + /* + XXX need a ipsec_sa for updating ratio counters but it is not + following policy anyways so it is not a priority + */ + skb = skb_decompress(skb, NULL, &flags); + if (!skb || flags) { + KLIPS_PRINT(debug_rcv & DB_RX_PKTRX, + "klips_debug:ipsec_rcv: " + "skb_decompress() returned error flags: %d, dropped.\n", + flags); + if (irs->stats) { + irs->stats->rx_errors++; + } + goto rcvleave; + } + } +#endif /* CONFIG_KLIPS_IPCOMP */ + + /* + * make sure that data now starts at IP header, since we are going + * to pass this back to ip_input (aka netif_rx). Rules for what the + * pointers wind up a different for 2.6 vs 2.4, so we just fudge it here. + */ +#ifdef NET_26 + skb->data = skb_push(skb, skb->h.raw - skb->nh.raw); +#else + skb->data = skb->nh.raw; + { + struct iphdr *iph = skb->nh.iph; + int len = ntohs(iph->tot_len); + skb->len = len; + } +#endif + +#ifdef SKB_RESET_NFCT + nf_conntrack_put(skb->nfct); + skb->nfct = NULL; +#if defined(CONFIG_NETFILTER_DEBUG) && defined(HAVE_SKB_NF_DEBUG) + skb->nf_debug = 0; +#endif /* CONFIG_NETFILTER_DEBUG */ +#endif /* SKB_RESET_NFCT */ + KLIPS_PRINT(debug_rcv & DB_RX_PKTRX, + "klips_debug:ipsec_rcv: " + "netif_rx() called.\n"); + netif_rx(skb); + skb=NULL; + + rcvleave: + if(skb) { + ipsec_kfree_skb(skb); + } + + /* KLIPS_DEC_USE; Artifact from refactor? bug # 454 */ + return(0); +} + +struct sk_buff *ipsec_rcv_unclone(struct sk_buff *skb, + struct ipsec_rcv_state *irs) +{ + /* if skb was cloned (most likely due to a packet sniffer such as + tcpdump being momentarily attached to the interface), make + a copy of our own to modify */ + if(skb_cloned(skb)) { + /* include any mac header while copying.. */ + if(skb_headroom(skb) < irs->hard_header_len) { + printk(KERN_WARNING "klips_error:ipsec_rcv: " + "tried to skb_push hhlen=%d, %d available. This should never happen, please report.\n", + irs->hard_header_len, + skb_headroom(skb)); + goto rcvleave; + } + skb_push(skb, irs->hard_header_len); + if +#ifdef SKB_COW_NEW + (skb_cow(skb, skb_headroom(skb)) != 0) +#else /* SKB_COW_NEW */ + ((skb = skb_cow(skb, skb_headroom(skb))) == NULL) +#endif /* SKB_COW_NEW */ + { + goto rcvleave; + } + if(skb->len < irs->hard_header_len) { + printk(KERN_WARNING "klips_error:ipsec_rcv: " + "tried to skb_pull hhlen=%d, %d available. This should never happen, please report.\n", + irs->hard_header_len, + skb->len); + goto rcvleave; + } + skb_pull(skb, irs->hard_header_len); + } + return skb; + +rcvleave: + ipsec_kfree_skb(skb); + return NULL; +} + + +#if !defined(NET_26) && defined(CONFIG_IPSEC_NAT_TRAVERSAL) +/* + * decapsulate a UDP encapsulated ESP packet + */ +struct sk_buff *ipsec_rcv_natt_decap(struct sk_buff *skb + , struct ipsec_rcv_state *irs + , int *udp_decap_ret_p) +{ + *udp_decap_ret_p = 0; + if (skb->sk && skb->nh.iph && skb->nh.iph->protocol==IPPROTO_UDP) { + /** + * Packet comes from udp_queue_rcv_skb so it is already defrag, + * checksum verified, ... (ie safe to use) + * + * If the packet is not for us, return -1 and udp_queue_rcv_skb + * will continue to handle it (do not kfree skb !!). + */ + +#ifndef UDP_OPT_IN_SOCK + struct udp_opt { + __u32 esp_in_udp; + }; + struct udp_opt *tp = (struct udp_opt *)&(skb->sk->tp_pinfo.af_tcp); +#else + struct udp_opt *tp = &(skb->sk->tp_pinfo.af_udp); +#endif + + struct iphdr *ip = (struct iphdr *)skb->nh.iph; + struct udphdr *udp = (struct udphdr *)((__u32 *)ip+ip->ihl); + __u8 *udpdata = (__u8 *)udp + sizeof(struct udphdr); + __u32 *udpdata32 = (__u32 *)udpdata; + + irs->natt_sport = ntohs(udp->source); + irs->natt_dport = ntohs(udp->dest); + + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "suspected ESPinUDP packet (NAT-Traversal) [%d].\n", + tp->esp_in_udp); + KLIPS_IP_PRINT(debug_rcv, ip); + + if (udpdata < skb->tail) { + unsigned int len = skb->tail - udpdata; + if ((len==1) && (udpdata[0]==0xff)) { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + /* not IPv6 compliant message */ + "NAT-keepalive from %d.%d.%d.%d.\n", NIPQUAD(ip->saddr)); + *udp_decap_ret_p = 0; + return NULL; + } + else if ( (tp->esp_in_udp == ESPINUDP_WITH_NON_IKE) && + (len > (2*sizeof(__u32) + sizeof(struct esphdr))) && + (udpdata32[0]==0) && (udpdata32[1]==0) ) { + /* ESP Packet with Non-IKE header */ + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "ESPinUDP pkt with Non-IKE - spi=0x%x\n", + ntohl(udpdata32[2])); + irs->natt_type = ESPINUDP_WITH_NON_IKE; + irs->natt_len = sizeof(struct udphdr)+(2*sizeof(__u32)); + } + else if ( (tp->esp_in_udp == ESPINUDP_WITH_NON_ESP) && + (len > sizeof(struct esphdr)) && + (udpdata32[0]!=0) ) { + /* ESP Packet without Non-ESP header */ + irs->natt_type = ESPINUDP_WITH_NON_ESP; + irs->natt_len = sizeof(struct udphdr); + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "ESPinUDP pkt without Non-ESP - spi=0x%x\n", + ntohl(udpdata32[0])); + } + else { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "IKE packet - not handled here\n"); + *udp_decap_ret_p = -1; + return NULL; + } + } + else { + return NULL; + } + } + return skb; +} +#endif + + +int +ipsec_rcv(struct sk_buff *skb +#ifndef PROTO_HANDLER_SINGLE_PARM + unsigned short xlen +#endif /* PROTO_HANDLER_SINGLE_PARM */ + ) +{ +#ifdef CONFIG_KLIPS_DEBUG + struct net_device *dev = skb->dev; +#endif /* CONFIG_KLIPS_DEBUG */ + unsigned char protoc; + struct net_device_stats *stats = NULL; /* This device's statistics */ + struct net_device *ipsecdev = NULL, *prvdev; + struct ipsecpriv *prv; + struct ipsec_rcv_state nirs, *irs = &nirs; + struct iphdr *ipp; + char name[9]; + int i; + + /* Don't unlink in the middle of a turnaround */ + KLIPS_INC_USE; + + memset(&nirs, 0, sizeof(struct ipsec_rcv_state)); + + if (skb == NULL) { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "NULL skb passed in.\n"); + goto rcvleave; + } + + if (skb->data == NULL) { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "NULL skb->data passed in, packet is bogus, dropping.\n"); + goto rcvleave; + } + +#if defined(CONFIG_IPSEC_NAT_TRAVERSAL) && !defined(NET_26) + { + /* NET_26 NAT-T is handled by seperate function */ + struct sk_buff *nskb; + int udp_decap_ret = 0; + + nskb = ipsec_rcv_natt_decap(skb, irs, &udp_decap_ret); + if(nskb == NULL) { + /* return with non-zero, because UDP.c code + * need to send it upstream. + */ + if(skb && udp_decap_ret == 0) { + ipsec_kfree_skb(skb); + } + KLIPS_DEC_USE; + return(udp_decap_ret); + } + skb = nskb; + } +#endif /* NAT_T */ + + /* dev->hard_header_len is unreliable and should not be used */ + irs->hard_header_len = skb->mac.raw ? (skb->nh.raw - skb->mac.raw) : 0; + if((irs->hard_header_len < 0) || (irs->hard_header_len > skb_headroom(skb))) + irs->hard_header_len = 0; + + skb = ipsec_rcv_unclone(skb, irs); + if(skb == NULL) { + goto rcvleave; + } + +#if IP_FRAGMENT_LINEARIZE + /* In Linux 2.4.4, we may have to reassemble fragments. They are + not assembled automatically to save TCP from having to copy + twice. + */ + if (skb_is_nonlinear(skb)) { +#ifdef HAVE_NEW_SKB_LINEARIZE + if (skb_linearize_cow(skb) != 0) +#else + if (skb_linearize(skb, GFP_ATOMIC) != 0) +#endif + { + goto rcvleave; + } + } +#endif /* IP_FRAGMENT_LINEARIZE */ + +#if defined(CONFIG_IPSEC_NAT_TRAVERSAL) && !defined(NET_26) + if (irs->natt_len) { + /** + * Now, we are sure packet is ESPinUDP, and we have a private + * copy that has been linearized, remove natt_len bytes + * from packet and modify protocol to ESP. + */ + if (((unsigned char *)skb->data > (unsigned char *)skb->nh.iph) + && ((unsigned char *)skb->nh.iph > (unsigned char *)skb->head)) + { + unsigned int _len = (unsigned char *)skb->data - + (unsigned char *)skb->nh.iph; + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: adjusting skb: skb_push(%u)\n", + _len); + skb_push(skb, _len); + } + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "removing %d bytes from ESPinUDP packet\n", irs->natt_len); + ipp = skb->nh.iph; + irs->iphlen = ipp->ihl << 2; + ipp->tot_len = htons(ntohs(ipp->tot_len) - irs->natt_len); + if (skb->len < irs->iphlen + irs->natt_len) { + printk(KERN_WARNING + "klips_error:ipsec_rcv: " + "ESPinUDP packet is too small (%d < %d+%d). " + "This should never happen, please report.\n", + (int)(skb->len), irs->iphlen, irs->natt_len); + goto rcvleave; + } + + /* advance payload pointer to point past the UDP header */ + skb->h.raw = skb->h.raw + irs->natt_len; + + /* modify protocol */ + ipp->protocol = IPPROTO_ESP; + + skb->sk = NULL; + + KLIPS_IP_PRINT(debug_rcv, skb->nh.iph); + } +#endif + + ipp = skb->nh.iph; + + { + struct in_addr ipsaddr; + struct in_addr ipdaddr; + + ipsaddr.s_addr = ipp->saddr; + addrtoa(ipsaddr, 0, irs->ipsaddr_txt + , sizeof(irs->ipsaddr_txt)); + ipdaddr.s_addr = ipp->daddr; + addrtoa(ipdaddr, 0, irs->ipdaddr_txt + , sizeof(irs->ipdaddr_txt)); + } + + irs->iphlen = ipp->ihl << 2; + + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "<<< Info -- "); + KLIPS_PRINTMORE(debug_rcv && skb->dev, "skb->dev=%s ", + skb->dev->name ? skb->dev->name : "NULL"); + KLIPS_PRINTMORE(debug_rcv && dev, "dev=%s ", + dev->name ? dev->name : "NULL"); + KLIPS_PRINTMORE(debug_rcv, "\n"); + + KLIPS_PRINT(debug_rcv && !(skb->dev && dev && (skb->dev == dev)), + "klips_debug:ipsec_rcv: " + "Informational -- **if this happens, find out why** skb->dev:%s is not equal to dev:%s\n", + skb->dev ? (skb->dev->name ? skb->dev->name : "NULL") : "NULL", + dev ? (dev->name ? dev->name : "NULL") : "NULL"); + + protoc = ipp->protocol; +#ifndef NET_21 + if((!protocol) || (protocol->protocol != protoc)) { + KLIPS_PRINT(debug_rcv & DB_RX_IPSA, + "klips_debug:ipsec_rcv: " + "protocol arg is NULL or unequal to the packet contents, this is odd, using value in packet.\n"); + } +#endif /* !NET_21 */ + + if( (protoc != IPPROTO_AH) && +#ifdef CONFIG_KLIPS_IPCOMP_disabled_until_we_register_IPCOMP_HANDLER + (protoc != IPPROTO_COMP) && +#endif /* CONFIG_KLIPS_IPCOMP */ + (protoc != IPPROTO_ESP) ) { + KLIPS_PRINT(debug_rcv & DB_RX_IPSA, + "klips_debug:ipsec_rcv: Why the hell is someone " + "passing me a non-ipsec protocol = %d packet? -- dropped.\n", + protoc); + goto rcvleave; + } + + if(skb->dev) { + for(i = 0; i < IPSEC_NUM_IF; i++) { + sprintf(name, IPSEC_DEV_FORMAT, i); + if(!strcmp(name, skb->dev->name)) { + prv = (struct ipsecpriv *)(skb->dev->priv); + if(prv) { + stats = (struct net_device_stats *) &(prv->mystats); + } + ipsecdev = skb->dev; + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "Info -- pkt already proc'ed a group of ipsec headers, processing next group of ipsec headers.\n"); + break; + } + if((ipsecdev = __ipsec_dev_get(name)) == NULL) { + KLIPS_PRINT(debug_rcv, + "klips_error:ipsec_rcv: " + "device %s does not exist\n", + name); + } + prv = ipsecdev ? (struct ipsecpriv *)(ipsecdev->priv) : NULL; + prvdev = prv ? (struct net_device *)(prv->dev) : NULL; + +#if 0 + KLIPS_PRINT(debug_rcv && prvdev, + "klips_debug:ipsec_rcv: " + "physical device for device %s is %s\n", + name, + prvdev->name); +#endif + if(prvdev && skb->dev && + !strcmp(prvdev->name, skb->dev->name)) { + stats = prv ? ((struct net_device_stats *) &(prv->mystats)) : NULL; + skb->dev = ipsecdev; + KLIPS_PRINT(debug_rcv && prvdev, + "klips_debug:ipsec_rcv: " + "assigning packet ownership to virtual device %s from physical device %s.\n", + name, prvdev->name); + if(stats) { + stats->rx_packets++; + } + break; + } + } + } else { + KLIPS_PRINT(debug_rcv, + "klips_debug:ipsec_rcv: " + "device supplied with skb is NULL\n"); + } + + if(stats == NULL) { + KLIPS_PRINT((debug_rcv), + "klips_error:ipsec_rcv: " + "packet received from physical I/F (%s) not connected to ipsec I/F. Cannot record stats. May not have SA for decoding. Is IPSEC traffic expected on this I/F? Check routing.\n", + skb->dev ? (skb->dev->name ? skb->dev->name : "NULL") : "NULL"); + } + + KLIPS_IP_PRINT(debug_rcv, ipp); + + /* set up for decap loop */ + irs->stats= stats; + irs->ipp = ipp; + irs->ipsp = NULL; + irs->ilen = 0; + irs->authlen=0; + irs->authfuncs=NULL; + irs->skb = skb; + + ipsec_rcv_decap(irs); + KLIPS_DEC_USE; + return(0); + + rcvleave: + if(skb) { + ipsec_kfree_skb(skb); + } + KLIPS_DEC_USE; + return(0); + +} + +#ifdef NET_26 +/* + * this entry point is not a protocol entry point, so the entry + * is a bit different. + * + * skb->iph->tot_len has been byte-swapped, and reduced by the size of + * the IP header (and options). + * + * skb->h.raw has been pulled up the ESP header. + * + * skb->iph->protocol = 50 IPPROTO_ESP; + * + */ +int klips26_rcv_encap(struct sk_buff *skb, __u16 encap_type) +{ + struct ipsec_rcv_state nirs, *irs = &nirs; + struct iphdr *ipp; + + /* Don't unlink in the middle of a turnaround */ + KLIPS_INC_USE; + + memset(irs, 0, sizeof(*irs)); + + /* XXX fudge it so that all nat-t stuff comes from ipsec0 */ + /* eventually, the SA itself will determine which device + * it comes from + */ + { + skb->dev = ipsec_get_device(0); + } + + /* set up for decap loop */ + irs->hard_header_len = skb->dev->hard_header_len; + + skb = ipsec_rcv_unclone(skb, irs); + +#if IP_FRAGMENT_LINEARIZE + /* In Linux 2.4.4, we may have to reassemble fragments. They are + not assembled automatically to save TCP from having to copy + twice. + */ + if (skb_is_nonlinear(skb)) { +#ifdef HAVE_NEW_SKB_LINEARIZE + if (skb_linearize_cow(skb) != 0) +#else + if (skb_linearize(skb, GFP_ATOMIC) != 0) +#endif + { + goto rcvleave; + } + } +#endif /* IP_FRAGMENT_LINEARIZE */ + + ipp = skb->nh.iph; + + { + struct in_addr ipsaddr; + struct in_addr ipdaddr; + + ipsaddr.s_addr = ipp->saddr; + addrtoa(ipsaddr, 0, irs->ipsaddr_txt + , sizeof(irs->ipsaddr_txt)); + ipdaddr.s_addr = ipp->daddr; + addrtoa(ipdaddr, 0, irs->ipdaddr_txt + , sizeof(irs->ipdaddr_txt)); + } + + irs->iphlen = ipp->ihl << 2; + + KLIPS_IP_PRINT(debug_rcv, ipp); + + irs->stats= NULL; + irs->ipp = ipp; + irs->ipsp = NULL; + irs->ilen = 0; + irs->authlen=0; + irs->authfuncs=NULL; + irs->skb = skb; + +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL + switch(encap_type) { + case UDP_ENCAP_ESPINUDP: + irs->natt_type = ESPINUDP_WITH_NON_ESP; + break; + + case UDP_ENCAP_ESPINUDP_NON_IKE: + irs->natt_type = ESPINUDP_WITH_NON_IKE; + break; + + default: + if(printk_ratelimit()) { + printk(KERN_INFO "KLIPS received unknown UDP-ESP encap type %u\n", + encap_type); + } + return -1; + } + +#endif + ipsec_rcv_decap(irs); + KLIPS_DEC_USE; + return 0; + +rcvleave: + if(skb) { + ipsec_kfree_skb(skb); + } + KLIPS_DEC_USE; + return 0; +} +#endif + + +/* + * $Log: ipsec_rcv.c,v $ + * Revision 1.171.2.11 2007/04/28 20:46:40 paul + * Added compile time switch for -DDISABLE_UDP_CHECKSUM that seems to be + * breaking IPsec+NAT+Transport mode with NAT-OA. Enabled this per default + * via Makefile.inc's USERCOMPILE flags. + * + * Revision 1.171.2.10 2006/10/06 21:39:26 paul + * Fix for 2.6.18+ only include linux/config.h if AUTOCONF_INCLUDED is not + * set. This is defined through autoconf.h which is included through the + * linux kernel build macros. + * + * Revision 1.171.2.9 2006/07/30 02:09:33 paul + * Author: Bart Trojanowski + * This fixes a NATT+ESP bug in rcv path. + * + * We only want to test NATT policy on the ESP packet. Doing so on the + * bundled SA breaks because the next layer does not know anything about + * NATT. + * + * Fix just puts an if(proto == IPPROTO_ESP) around the NATT policy check. + * + * Revision 1.171.2.8 2006/07/29 05:03:04 paul + * Added check for new version of skb_linearize that only takes 1 argument, + * for 2.6.18+ kernels. + * + * Revision 1.171.2.7 2006/04/20 16:33:07 mcr + * remove all of CONFIG_KLIPS_ALG --- one can no longer build without it. + * Fix in-kernel module compilation. Sub-makefiles do not work. + * + * Revision 1.171.2.6 2005/12/07 06:07:04 paul + * comment out KLIPS_DEC_USE in ipsec_rcv_decap. Likely an artifact from + * refactoring. http://bugs.xelerance.com/view.php?id=454 + * + * Revision 1.171.2.5 2005/10/21 02:22:29 mcr + * pull up of another try at 2.4.x kernel fix + * + * Revision 1.171.2.4 2005/10/21 01:39:56 mcr + * nat-t fix is 2.4/2.6 specific + * + * Revision 1.178 2005/10/21 02:19:34 mcr + * on 2.4 systems, we have to fix up the length as well. + * + * Revision 1.177 2005/10/21 00:18:31 mcr + * nat-t fix is 2.4 specific. + * + * Revision 1.176 2005/10/20 21:06:11 mcr + * possible fix for nat-t problem on 2.4 kernels. + * + * Revision 1.175 2005/10/13 02:49:24 mcr + * tested UDP-encapsulated ESP packets that were not actually ESP, + * (but IKE) were being eaten. + * + * Revision 1.174 2005/10/13 01:25:22 mcr + * UDP-encapsulated ESP packets that were not actually ESP, + * (but IKE) were being eaten. + * + * Revision 1.173 2005/08/31 23:26:11 mcr + * fixes for 2.6.13 + * + * Revision 1.172 2005/08/05 08:44:54 mcr + * ipsec_kern24.h (compat code for 2.4) must be include + * explicitely now. + * + * Revision 1.171 2005/07/08 23:56:06 ken + * #ifdef + * + * Revision 1.170 2005/07/08 23:50:05 ken + * Don't attempt to decapsulate if NAT-T isn't available in the code + * + * Revision 1.169 2005/06/06 00:27:31 mcr + * fix for making tcpdump (packet capture) work correctly for + * nat-t received packets. + * + * Revision 1.168 2005/06/04 16:06:06 mcr + * better patch for nat-t rcv-device code. + * + * Revision 1.167 2005/06/03 17:04:46 mcr + * nat-t packets are forced to arrive from ipsec0. + * + * Revision 1.166 2005/04/29 05:10:22 mcr + * removed from extraenous includes to make unit testing easier. + * + * Revision 1.165 2005/04/20 17:11:32 mcr + * fixed to compile on 2.4. + * + * Revision 1.164 2005/04/18 03:09:50 ken + * Fix typo + * + * Revision 1.163 2005/04/17 05:32:58 mcr + * remove extraneous debugging + * make sure to return success from klips26_encap_rcv(). + * + * Revision 1.162 2005/04/17 04:37:01 mcr + * make sure that irs->ipp is still set. + * + * Revision 1.161 2005/04/17 03:51:52 mcr + * removed old comment about removed code. + * added translation from udp.c/2.6 to KLIPS NAT-ESP naming. + * comment about check for origin address/port for incoming NAT-ESP packets. + * + * Revision 1.160 2005/04/15 19:55:58 mcr + * adjustments to use proper skb fields for data. + * + * Revision 1.159 2005/04/10 22:58:20 mcr + * refactoring of receive functions to make it easier to + * call the ESP decap. + * + * Revision 1.158 2005/04/08 18:27:53 mcr + * refactored ipsec_rcv() into ipsec_rcv() and ipsec_rcv_decap(). + * + * Revision 1.157 2004/12/28 23:13:09 mcr + * use consistent CONFIG_IPSEC_NAT_TRAVERSAL. + * + * Revision 1.156 2004/12/03 21:34:51 mcr + * mistype of KLIPS_USE_COUNT -> KLIPS_INC_USE; + * + * Revision 1.155 2004/12/03 21:25:57 mcr + * compile time fixes for running on 2.6. + * still experimental. + * + * Revision 1.154 2004/09/08 17:21:36 ken + * Rename MD5* -> osMD5 functions to prevent clashes with other symbols exported by kernel modules (CIFS in 2.6 initiated this) + * + * Revision 1.153 2004/08/22 20:10:00 mcr + * removed check for incorrect setting of NET_26. + * + * Revision 1.152 2004/08/21 15:22:39 mcr + * added #defines for ATT heartbeat. + * + * Revision 1.151 2004/08/21 02:16:32 ken + * Patch from Jochen Eisinger for AT&T MTS Heartbeat packet support + * + * Revision 1.150 2004/08/21 00:44:48 mcr + * CONFIG_KLIPS_NAT was wrong, also need to include udp.h. + * + * Revision 1.149 2004/08/20 21:45:45 mcr + * CONFIG_KLIPS_NAT_TRAVERSAL is not used in an attempt to + * be 26sec compatible. But, some defines where changed. + * + * Revision 1.148 2004/08/17 03:27:23 mcr + * klips 2.6 edits. + * + * Revision 1.147 2004/08/05 23:29:27 mcr + * fixed nesting of #ifdef vs {} in ipsec_rcv(). + * + * Revision 1.146 2004/08/04 15:57:07 mcr + * moved des .h files to include/des/ * + * included 2.6 protocol specific things + * started at NAT-T support, but it will require a kernel patch. + * + * Revision 1.145 2004/08/03 18:19:08 mcr + * in 2.6, use "net_device" instead of #define device->net_device. + * this probably breaks 2.0 compiles. + * + * Revision 1.144 2004/07/10 19:11:18 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.143 2004/05/10 22:27:00 mcr + * fix for ESP-3DES-noauth test case. + * + * Revision 1.142 2004/05/10 22:25:57 mcr + * reformat of calls to ipsec_lifetime_check(). + * + * Revision 1.141 2004/04/06 02:49:26 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.140 2004/02/03 03:12:53 mcr + * removed erroneously, double patched code. + * + * Revision 1.139 2004/01/05 23:21:29 mcr + * initialize sin_family in ipsec_rcv.c + * + * Revision 1.138 2003/12/24 19:46:52 mcr + * if sock.h patch has not been applied, then define appropriate + * structure so we can use it. This is serious inferior, and + * depends upon the concept that the structure in question is + * smaller than the other members of that union. + * getting rid of differing methods is a better solution. + * + * Revision 1.137 2003/12/22 19:40:57 mcr + * NAT-T patches 0.6c. + * + * Revision 1.136 2003/12/15 18:13:12 mcr + * when compiling with NAT traversal, don't assume that the + * kernel has been patched, unless CONFIG_IPSEC_NAT_NON_ESP + * is set. + * + * Revision 1.135 2003/12/13 19:10:21 mcr + * refactored rcv and xmit code - same as FS 2.05. + * + * Revision 1.134.2.1 2003/12/22 15:25:52 jjo + * Merged algo-0.8.1-rc11-test1 into alg-branch + * + * Revision 1.134 2003/12/10 01:14:27 mcr + * NAT-traversal patches to KLIPS. + * + * Revision 1.133 2003/10/31 02:27:55 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.132.2.1 2003/10/29 01:30:41 mcr + * elimited "struct sa_id". + * + * Revision 1.132 2003/09/02 19:51:48 mcr + * fixes for PR#252. + * + * Revision 1.131 2003/07/31 22:47:16 mcr + * preliminary (untested by FS-team) 2.5 patches. + * + * Revision 1.130 2003/04/03 17:38:25 rgb + * Centralised ipsec_kfree_skb and ipsec_dev_{get,put}. + * Clarified logic for non-connected devices. + * + * Revision 1.129 2003/02/06 02:21:34 rgb + * + * Moved "struct auth_alg" from ipsec_rcv.c to ipsec_ah.h . + * Changed "struct ah" to "struct ahhdr" and "struct esp" to "struct esphdr". + * Removed "#ifdef INBOUND_POLICY_CHECK_eroute" dead code. + * + * Revision 1.128 2002/12/13 20:58:03 rgb + * Relegated MCR's recent "_dmp" routine to debug_verbose. + * Cleaned up printing of source and destination addresses in debug output. + * + * Revision 1.127 2002/12/04 16:00:16 rgb + * + * Fixed AH decapsulation pointer update bug and added some comments and + * debugging. + * This bug was caught by west-ah-0[12]. + * + * Revision 1.126 2002/11/04 05:03:43 mcr + * fixes for IPCOMP. There were two problems: + * 1) the irs->ipp pointer was not being updated properly after + * the ESP descryption. The meant nothing for IPIP, as the + * later IP header overwrote the earlier one. + * 2) the more serious problem was that skb_decompress will + * usually allocate a new SKB, so we have to make sure that + * it doesn't get lost. + * #2 meant removing the skb argument from the ->decrypt routine + * and moving it to the irs->skb, so it could be value/result. + * + * Revision 1.125 2002/11/01 01:53:35 dhr + * + * fix typo + * + * Revision 1.124 2002/10/31 22:49:01 dhr + * + * - eliminate unused variable "hash" + * - reduce scope of variable "authenticator" + * - add comment on a couple of tricky bits + * + * Revision 1.123 2002/10/31 22:39:56 dhr + * + * use correct type for result of function calls + * + * Revision 1.122 2002/10/31 22:36:25 dhr + * + * simplify complex test + * + * Revision 1.121 2002/10/31 22:34:04 dhr + * + * ipsprev is never used: ditch it + * + * Revision 1.120 2002/10/31 22:30:21 dhr + * + * eliminate redundant assignments + * + * Revision 1.119 2002/10/31 22:27:43 dhr + * + * make whitespace canonical + * + * Revision 1.118 2002/10/30 05:47:17 rgb + * Fixed cut-and-paste error mis-identifying comp runt as ah. + * + * Revision 1.117 2002/10/17 16:37:45 rgb + * Remove compp intermediate variable and in-line its contents + * where used + * + * Revision 1.116 2002/10/12 23:11:53 dhr + * + * [KenB + DHR] more 64-bit cleanup + * + * Revision 1.115 2002/10/07 19:06:58 rgb + * Minor fixups and activation to west-rcv-nfmark-set-01 test to check for SA reference properly set on incoming. + * + * Revision 1.114 2002/10/07 18:31:31 rgb + * Set saref on incoming packets. + * + * Revision 1.113 2002/09/16 21:28:12 mcr + * adjust hash length for HMAC calculation - must look at whether + * it is MD5 or SHA1. + * + * Revision 1.112 2002/09/16 21:19:15 mcr + * fixes for west-ah-icmp-01 - length of AH header must be + * calculated properly, and next_header field properly copied. + * + * Revision 1.111 2002/09/10 02:45:56 mcr + * re-factored the ipsec_rcv function into several functions, + * ipsec_rcv_decap_once, and a set of functions for AH, ESP and IPCOMP. + * In addition, the MD5 and SHA1 functions are replaced with pointers. + * + * Revision 1.110 2002/08/30 06:34:33 rgb + * Fix scope of shift in AH header length check. + * + * Revision 1.109 2002/08/27 16:49:20 rgb + * Fixed ESP short packet DOS (and AH and IPCOMP). + * + * Revision 1.108 2002/07/24 18:44:54 rgb + * Type fiddling to tame ia64 compiler. + * + * Revision 1.107 2002/05/27 18:58:18 rgb + * Convert to dynamic ipsec device allocation. + * Remove final vistiges of tdb references via IPSEC_KLIPS1_COMPAT. + * + * Revision 1.106 2002/05/23 07:15:21 rgb + * Pointer clean-up. + * Added refcount code. + * + * Revision 1.105 2002/05/14 02:35:06 rgb + * Change all references to tdb, TDB or Tunnel Descriptor Block to ips, + * ipsec_sa or ipsec_sa. + * Change references to _TDB to _IPSA. + * + * Revision 1.104 2002/04/24 07:55:32 mcr + * #include patches and Makefiles for post-reorg compilation. + * + * Revision 1.103 2002/04/24 07:36:30 mcr + * Moved from ./klips/net/ipsec/ipsec_rcv.c,v + * + * Revision 1.102 2002/01/29 17:17:56 mcr + * moved include of ipsec_param.h to after include of linux/kernel.h + * otherwise, it seems that some option that is set in ipsec_param.h + * screws up something subtle in the include path to kernel.h, and + * it complains on the snprintf() prototype. + * + * Revision 1.101 2002/01/29 04:00:52 mcr + * more excise of kversions.h header. + * + * Revision 1.100 2002/01/29 02:13:17 mcr + * introduction of ipsec_kversion.h means that include of + * ipsec_param.h must preceed any decisions about what files to + * include to deal with differences in kernel source. + * + * Revision 1.99 2002/01/28 21:40:59 mcr + * should use #if to test boolean option rather than #ifdef. + * + * Revision 1.98 2002/01/20 20:19:36 mcr + * renamed option to IP_FRAGMENT_LINEARIZE. + * + * Revision 1.97 2002/01/12 02:55:36 mcr + * fix for post-2.4.4 to linearize skb's when ESP packet + * was assembled from fragments. + * + * Revision 1.96 2001/11/26 09:23:49 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.93.2.2 2001/10/22 20:54:07 mcr + * include des.h, removed phony prototypes and fixed calling + * conventions to match real prototypes. + * + * Revision 1.93.2.1 2001/09/25 02:22:22 mcr + * struct tdb -> struct ipsec_sa. + * lifetime checks moved to ipsec_life.c + * some sa(tdb) manipulation functions renamed. + * + * Revision 1.95 2001/11/06 19:49:07 rgb + * Added variable descriptions. + * Removed unauthenticated sequence==0 check to prevent DoS. + * + * Revision 1.94 2001/10/18 04:45:20 rgb + * 2.4.9 kernel deprecates linux/malloc.h in favour of linux/slab.h, + * lib/freeswan.h version macros moved to lib/kversions.h. + * Other compiler directive cleanups. + * + * Revision 1.93 2001/09/07 22:17:24 rgb + * Fix for removal of transport layer protocol handler arg in 2.4.4. + * Fix to accomodate peer non-conformance to IPCOMP rfc2393. + * + * Revision 1.92 2001/08/27 19:44:41 rgb + * Fix error in comment. + * + * Revision 1.91 2001/07/20 19:31:48 dhr + * [DHR] fix source and destination subnets of policy in diagnostic + * + * Revision 1.90 2001/07/06 19:51:09 rgb + * Added inbound policy checking code for IPIP SAs. + * Renamed unused function argument for ease and intuitive naming. + * + * Revision 1.89 2001/06/22 19:35:23 rgb + * Disable ipcomp processing if we are handed a ipcomp packet with no esp + * or ah header. + * Print protocol if we are handed a non-ipsec packet. + * + * Revision 1.88 2001/06/20 06:30:47 rgb + * Fixed transport mode IPCOMP policy check bug. + * + * Revision 1.87 2001/06/13 20:58:40 rgb + * Added parentheses around assignment used as truth value to silence + * compiler. + * + * Revision 1.86 2001/06/07 22:25:23 rgb + * Added a source address policy check for tunnel mode. It still does + * not check client addresses and masks. + * Only decapsulate IPIP if it is expected. + * + * Revision 1.85 2001/05/30 08:14:02 rgb + * Removed vestiges of esp-null transforms. + * + * Revision 1.84 2001/05/27 06:12:11 rgb + * Added structures for pid, packet count and last access time to eroute. + * Added packet count to beginning of /proc/net/ipsec_eroute. + * + * Revision 1.83 2001/05/04 16:45:47 rgb + * Remove unneeded code. ipp is not used after this point. + * + * Revision 1.82 2001/05/04 16:36:00 rgb + * Fix skb_cow() call for 2.4.4. (SS) + * + * Revision 1.81 2001/05/02 14:46:53 rgb + * Fix typo for compiler directive to pull IPH back. + * + * Revision 1.80 2001/04/30 19:46:34 rgb + * Update for 2.4.4. We now receive the skb with skb->data pointing to + * h.raw. + * + * Revision 1.79 2001/04/23 15:01:15 rgb + * Added spin_lock() check to prevent double-locking for multiple + * transforms and hence kernel lock-ups with SMP kernels. + * Minor spin_unlock() adjustments to unlock before non-dependant prints + * and IPSEC device stats updates. + * + * Revision 1.78 2001/04/21 23:04:24 rgb + * Check if soft expire has already been sent before sending another to + * prevent ACQUIRE flooding. + * + * Revision 1.77 2001/03/16 07:35:20 rgb + * Ditch extra #if 1 around now permanent policy checking code. + * + * Revision 1.76 2001/02/27 22:24:54 rgb + * Re-formatting debug output (line-splitting, joining, 1arg/line). + * Check for satoa() return codes. + * + * Revision 1.75 2001/02/19 22:28:30 rgb + * Minor change to virtual device discovery code to assert which I/F has + * been found. + * + * Revision 1.74 2000/11/25 03:50:36 rgb + * Oops fix by minor re-arrangement of code to avoid accessing a freed tdb. + * + * Revision 1.73 2000/11/09 20:52:15 rgb + * More spinlock shuffling, locking earlier and unlocking later in rcv to + * include ipcomp and prevent races, renaming some tdb variables that got + * forgotten, moving some unlocks to include tdbs and adding a missing + * unlock. Thanks to Svenning for some of these. + * + * Revision 1.72 2000/11/09 20:11:22 rgb + * Minor shuffles to fix non-standard kernel config option selection. + * + * Revision 1.71 2000/11/06 04:36:18 rgb + * Ditched spin_lock_irqsave in favour of spin_lock. + * Minor initial protocol check rewrite. + * Clean up debug printing. + * Clean up tdb handling on ipcomp. + * Fixed transport mode null pointer de-reference without ipcomp. + * Add Svenning's adaptive content compression. + * Disabled registration of ipcomp handler. + * + * Revision 1.70 2000/10/30 23:41:43 henry + * Hans-Joerg Hoexer's null-pointer fix + * + * Revision 1.69 2000/10/10 18:54:16 rgb + * Added a fix for incoming policy check with ipcomp enabled but + * uncompressible. + * + * Revision 1.68 2000/09/22 17:53:12 rgb + * Fixed ipcomp tdb pointers update for policy checking. + * + * Revision 1.67 2000/09/21 03:40:58 rgb + * Added more debugging to try and track down the cpi outward copy problem. + * + * Revision 1.66 2000/09/20 04:00:10 rgb + * Changed static functions to DEBUG_NO_STATIC to reveal function names for + * debugging oopsen. + * + * Revision 1.65 2000/09/19 07:07:16 rgb + * Added debugging to inbound policy check for ipcomp. + * Added missing spin_unlocks (thanks Svenning!). + * Fixed misplaced tdbnext pointers causing mismatched ipip policy check. + * Protect ipcomp policy check following ipip decap with sysctl switch. + * + * Revision 1.64 2000/09/18 21:27:29 rgb + * 2.0 fixes. + * + * Revision 1.63 2000/09/18 02:35:50 rgb + * Added policy checking to ipcomp and re-enabled policy checking by + * default. + * Optimised satoa calls. + * + * Revision 1.62 2000/09/17 21:02:32 rgb + * Clean up debugging, removing slow timestamp debug code. + * + * Revision 1.61 2000/09/16 01:07:55 rgb + * Fixed erroneous ref from struct ipcomp to struct ipcomphdr. + * + * Revision 1.60 2000/09/15 11:37:01 rgb + * Merge in heavily modified Svenning Soerensen's + * IPCOMP zlib deflate code. + * + * Revision 1.59 2000/09/15 04:56:20 rgb + * Remove redundant satoa() call, reformat comment. + * + * Revision 1.58 2000/09/13 08:00:52 rgb + * Flick on inbound policy checking. + * + * Revision 1.57 2000/09/12 03:22:19 rgb + * Converted inbound_policy_check to sysctl. + * Re-enabled policy backcheck. + * Moved policy checks to top and within tdb lock. + * + * Revision 1.56 2000/09/08 19:12:56 rgb + * Change references from DEBUG_IPSEC to CONFIG_IPSEC_DEBUG. + * + * Revision 1.55 2000/08/28 18:15:46 rgb + * Added MB's nf-debug reset patch. + * + * Revision 1.54 2000/08/27 01:41:26 rgb + * More minor tweaks to the bad padding debug code. + * + * Revision 1.53 2000/08/24 16:54:16 rgb + * Added KLIPS_PRINTMORE macro to continue lines without KERN_INFO level + * info. + * Tidied up device reporting at the start of ipsec_rcv. + * Tidied up bad padding debugging and processing. + * + * Revision 1.52 2000/08/20 21:36:03 rgb + * Activated pfkey_expire() calls. + * Added a hard/soft expiry parameter to pfkey_expire(). + * Added sanity checking to avoid propagating zero or smaller-length skbs + * from a bogus decryption. + * Re-arranged the order of soft and hard expiry to conform to RFC2367. + * Clean up references to CONFIG_IPSEC_PFKEYv2. + * + * Revision 1.51 2000/08/18 21:23:30 rgb + * Improve bad padding warning so that the printk buffer doesn't get + * trampled. + * + * Revision 1.50 2000/08/01 14:51:51 rgb + * Removed _all_ remaining traces of DES. + * + * Revision 1.49 2000/07/28 13:50:53 rgb + * Changed enet_statistics to net_device_stats and added back compatibility + * for pre-2.1.19. + * + * Revision 1.48 2000/05/10 19:14:40 rgb + * Only check usetime against soft and hard limits if the tdb has been + * used. + * Cast output of ntohl so that the broken prototype doesn't make our + * compile noisy. + * + * Revision 1.47 2000/05/09 17:45:43 rgb + * Fix replay bitmap corruption bug upon receipt of bogus packet + * with correct SPI. This was a DoS. + * + * Revision 1.46 2000/03/27 02:31:58 rgb + * Fixed authentication failure printout bug. + * + * Revision 1.45 2000/03/22 16:15:37 rgb + * Fixed renaming of dev_get (MB). + * + * Revision 1.44 2000/03/16 08:17:24 rgb + * Hardcode PF_KEYv2 support. + * Fixed minor bug checking AH header length. + * + * Revision 1.43 2000/03/14 12:26:59 rgb + * Added skb->nfct support for clearing netfilter conntrack bits (MB). + * + * Revision 1.42 2000/01/26 10:04:04 rgb + * Fixed inbound policy checking on transport mode bug. + * Fixed noisy 2.0 printk arguments. + * + * Revision 1.41 2000/01/24 20:58:02 rgb + * Improve debugging/reporting support for (disabled) inbound + * policy checking. + * + * Revision 1.40 2000/01/22 23:20:10 rgb + * Fixed up inboud policy checking code. + * Cleaned out unused crud. + * + * Revision 1.39 2000/01/21 06:15:29 rgb + * Added sanity checks on skb_push(), skb_pull() to prevent panics. + * Fixed cut-and-paste debug_tunnel to debug_rcv. + * Added inbound policy checking code, disabled. + * Simplified output code by updating ipp to post-IPIP decapsulation. + * + * elided pre-2000 comments. Use "cvs log" + * + * + * Local Variables: + * c-set-style: linux + * End: + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ipsec_sa.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,1870 @@ +/* + * Common routines for IPsec SA maintenance routines. + * + * Copyright (C) 1996, 1997 John Ioannidis. + * Copyright (C) 1998, 1999, 2000, 2001, 2002 Richard Guy Briggs. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_sa.c,v 1.30.2.2 2006/10/06 21:39:26 paul Exp $ + * + * This is the file formerly known as "ipsec_xform.h" + * + */ + +#ifndef AUTOCONF_INCLUDED +#include +#endif +#include +#include /* printk() */ + +#include "openswan/ipsec_param.h" + +#ifdef MALLOC_SLAB +# include /* kmalloc() */ +#else /* MALLOC_SLAB */ +# include /* kmalloc() */ +#endif /* MALLOC_SLAB */ +#include /* vmalloc() */ +#include /* error codes */ +#include /* size_t */ +#include /* mark_bh */ + +#include /* struct device, and other headers */ +#include /* eth_type_trans */ +#include /* struct iphdr */ +#include +#include +#ifdef SPINLOCK +#ifdef SPINLOCK_23 +#include /* *lock* */ +#else /* SPINLOCK_23 */ +#include /* *lock* */ +#endif /* SPINLOCK_23 */ +#endif /* SPINLOCK */ + +#include + +#include "openswan/radij.h" + +#include "openswan/ipsec_stats.h" +#include "openswan/ipsec_life.h" +#include "openswan/ipsec_sa.h" +#include "openswan/ipsec_xform.h" + +#include "openswan/ipsec_encap.h" +#include "openswan/ipsec_radij.h" +#include "openswan/ipsec_xform.h" +#include "openswan/ipsec_ipe4.h" +#include "openswan/ipsec_ah.h" +#include "openswan/ipsec_esp.h" + +#include +#include + +#include "openswan/ipsec_proto.h" +#include "openswan/ipsec_alg.h" + + +#ifdef CONFIG_KLIPS_DEBUG +int debug_xform = 0; +#endif /* CONFIG_KLIPS_DEBUG */ + +#define SENDERR(_x) do { error = -(_x); goto errlab; } while (0) + +struct ipsec_sa *ipsec_sadb_hash[SADB_HASHMOD]; +#ifdef SPINLOCK +spinlock_t tdb_lock = SPIN_LOCK_UNLOCKED; +#else /* SPINLOCK */ +spinlock_t tdb_lock; +#endif /* SPINLOCK */ + +struct ipsec_sadb ipsec_sadb; + +#if IPSEC_SA_REF_CODE + +/* the sub table must be narrower (or equal) in bits than the variable type + in the main table to count the number of unused entries in it. */ +typedef struct { + int testSizeOf_refSubTable : + ((sizeof(IPsecRefTableUnusedCount) * 8) < IPSEC_SA_REF_SUBTABLE_IDX_WIDTH ? -1 : 1); +} dummy; + + +/* The field where the saref will be hosted in the skb must be wide enough to + accomodate the information it needs to store. */ +typedef struct { + int testSizeOf_refField : + (IPSEC_SA_REF_HOST_FIELD_WIDTH < IPSEC_SA_REF_TABLE_IDX_WIDTH ? -1 : 1 ); +} dummy2; + + +#define IPS_HASH(said) (((said)->spi + (said)->dst.u.v4.sin_addr.s_addr + (said)->proto) % SADB_HASHMOD) + + +void +ipsec_SAtest(void) +{ + IPsecSAref_t SAref = 258; + struct ipsec_sa ips; + ips.ips_ref = 772; + + printk("klips_debug:ipsec_SAtest: " + "IPSEC_SA_REF_SUBTABLE_IDX_WIDTH=%u\n" + "IPSEC_SA_REF_MAINTABLE_NUM_ENTRIES=%u\n" + "IPSEC_SA_REF_SUBTABLE_NUM_ENTRIES=%u\n" + "IPSEC_SA_REF_HOST_FIELD_WIDTH=%lu\n" + "IPSEC_SA_REF_TABLE_MASK=%x\n" + "IPSEC_SA_REF_ENTRY_MASK=%x\n" + "IPsecSAref2table(%d)=%u\n" + "IPsecSAref2entry(%d)=%u\n" + "IPsecSAref2NFmark(%d)=%u\n" + "IPsecSAref2SA(%d)=%p\n" + "IPsecSA2SAref(%p)=%d\n" + , + IPSEC_SA_REF_SUBTABLE_IDX_WIDTH, + IPSEC_SA_REF_MAINTABLE_NUM_ENTRIES, + IPSEC_SA_REF_SUBTABLE_NUM_ENTRIES, + (unsigned long) IPSEC_SA_REF_HOST_FIELD_WIDTH, + IPSEC_SA_REF_TABLE_MASK, + IPSEC_SA_REF_ENTRY_MASK, + SAref, IPsecSAref2table(SAref), + SAref, IPsecSAref2entry(SAref), + SAref, IPsecSAref2NFmark(SAref), + SAref, IPsecSAref2SA(SAref), + (&ips), IPsecSA2SAref((&ips)) + ); + return; +} + +int +ipsec_SAref_recycle(void) +{ + int table; + int entry; + int error = 0; + + ipsec_sadb.refFreeListHead = -1; + ipsec_sadb.refFreeListTail = -1; + + if(ipsec_sadb.refFreeListCont == IPSEC_SA_REF_MAINTABLE_NUM_ENTRIES * IPSEC_SA_REF_SUBTABLE_NUM_ENTRIES) { + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_SAref_recycle: " + "end of table reached, continuing at start..\n"); + ipsec_sadb.refFreeListCont = 0; + } + + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_SAref_recycle: " + "recycling, continuing from SAref=%d (0p%p), table=%d, entry=%d.\n", + ipsec_sadb.refFreeListCont, + (ipsec_sadb.refTable[IPsecSAref2table(ipsec_sadb.refFreeListCont)] != NULL) ? IPsecSAref2SA(ipsec_sadb.refFreeListCont) : NULL, + IPsecSAref2table(ipsec_sadb.refFreeListCont), + IPsecSAref2entry(ipsec_sadb.refFreeListCont)); + + for(table = IPsecSAref2table(ipsec_sadb.refFreeListCont); + table < IPSEC_SA_REF_MAINTABLE_NUM_ENTRIES; + table++) { + if(ipsec_sadb.refTable[table] == NULL) { + error = ipsec_SArefSubTable_alloc(table); + if(error) { + return error; + } + } + for(entry = IPsecSAref2entry(ipsec_sadb.refFreeListCont); + entry < IPSEC_SA_REF_SUBTABLE_NUM_ENTRIES; + entry++) { + if(ipsec_sadb.refTable[table]->entry[entry] == NULL) { + ipsec_sadb.refFreeList[++ipsec_sadb.refFreeListTail] = IPsecSArefBuild(table, entry); + if(ipsec_sadb.refFreeListTail == (IPSEC_SA_REF_FREELIST_NUM_ENTRIES - 1)) { + ipsec_sadb.refFreeListHead = 0; + ipsec_sadb.refFreeListCont = ipsec_sadb.refFreeList[ipsec_sadb.refFreeListTail] + 1; + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_SAref_recycle: " + "SArefFreeList refilled.\n"); + return 0; + } + } + } + } + + if(ipsec_sadb.refFreeListTail == -1) { + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_SAref_recycle: " + "out of room in the SArefTable.\n"); + + return(-ENOSPC); + } + + ipsec_sadb.refFreeListHead = 0; + ipsec_sadb.refFreeListCont = ipsec_sadb.refFreeList[ipsec_sadb.refFreeListTail] + 1; + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_SAref_recycle: " + "SArefFreeList partly refilled to %d of %d.\n", + ipsec_sadb.refFreeListTail, + IPSEC_SA_REF_FREELIST_NUM_ENTRIES); + return 0; +} + +int +ipsec_SArefSubTable_alloc(unsigned table) +{ + unsigned entry; + struct IPsecSArefSubTable* SArefsub; + + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_SArefSubTable_alloc: " + "allocating %lu bytes for table %u of %u.\n", + (unsigned long) (IPSEC_SA_REF_SUBTABLE_NUM_ENTRIES * sizeof(struct ipsec_sa *)), + table, + IPSEC_SA_REF_MAINTABLE_NUM_ENTRIES); + + /* allocate another sub-table */ + SArefsub = vmalloc(IPSEC_SA_REF_SUBTABLE_NUM_ENTRIES * sizeof(struct ipsec_sa *)); + if(SArefsub == NULL) { + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_SArefSubTable_alloc: " + "error allocating memory for table %u of %u!\n", + table, + IPSEC_SA_REF_MAINTABLE_NUM_ENTRIES); + return -ENOMEM; + } + + /* add this sub-table to the main table */ + ipsec_sadb.refTable[table] = SArefsub; + + /* initialise each element to NULL */ + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_SArefSubTable_alloc: " + "initialising %u elements (2 ^ %u) of table %u.\n", + IPSEC_SA_REF_SUBTABLE_NUM_ENTRIES, + IPSEC_SA_REF_SUBTABLE_IDX_WIDTH, + table); + for(entry = 0; entry < IPSEC_SA_REF_SUBTABLE_NUM_ENTRIES; entry++) { + SArefsub->entry[entry] = NULL; + } + + return 0; +} +#endif /* IPSEC_SA_REF_CODE */ + +int +ipsec_saref_freelist_init(void) +{ + int i; + + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_saref_freelist_init: " + "initialising %u elements of FreeList.\n", + IPSEC_SA_REF_FREELIST_NUM_ENTRIES); + + for(i = 0; i < IPSEC_SA_REF_FREELIST_NUM_ENTRIES; i++) { + ipsec_sadb.refFreeList[i] = IPSEC_SAREF_NULL; + } + ipsec_sadb.refFreeListHead = -1; + ipsec_sadb.refFreeListCont = 0; + ipsec_sadb.refFreeListTail = -1; + + return 0; +} + +int +ipsec_sadb_init(void) +{ + int error = 0; + unsigned i; + + for(i = 0; i < SADB_HASHMOD; i++) { + ipsec_sadb_hash[i] = NULL; + } + /* parts above are for the old style SADB hash table */ + + +#if IPSEC_SA_REF_CODE + /* initialise SA reference table */ + + /* initialise the main table */ + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sadb_init: " + "initialising main table of size %u (2 ^ %u).\n", + IPSEC_SA_REF_MAINTABLE_NUM_ENTRIES, + IPSEC_SA_REF_MAINTABLE_IDX_WIDTH); + { + unsigned table; + for(table = 0; table < IPSEC_SA_REF_MAINTABLE_NUM_ENTRIES; table++) { + ipsec_sadb.refTable[table] = NULL; + } + } + + /* allocate the first sub-table */ + error = ipsec_SArefSubTable_alloc(0); + if(error) { + return error; + } + + error = ipsec_saref_freelist_init(); +#endif /* IPSEC_SA_REF_CODE */ + return error; +} + +#if IPSEC_SA_REF_CODE +IPsecSAref_t +ipsec_SAref_alloc(int*error) /* pass in error var by pointer */ +{ + IPsecSAref_t SAref; + + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_SAref_alloc: " + "SAref requested... head=%d, cont=%d, tail=%d, listsize=%d.\n", + ipsec_sadb.refFreeListHead, + ipsec_sadb.refFreeListCont, + ipsec_sadb.refFreeListTail, + IPSEC_SA_REF_FREELIST_NUM_ENTRIES); + + if(ipsec_sadb.refFreeListHead == -1) { + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_SAref_alloc: " + "FreeList empty, recycling...\n"); + *error = ipsec_SAref_recycle(); + if(*error) { + return IPSEC_SAREF_NULL; + } + } + + SAref = ipsec_sadb.refFreeList[ipsec_sadb.refFreeListHead]; + if(SAref == IPSEC_SAREF_NULL) { + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_SAref_alloc: " + "unexpected error, refFreeListHead = %d points to invalid entry.\n", + ipsec_sadb.refFreeListHead); + *error = -ESPIPE; + return IPSEC_SAREF_NULL; + } + + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_SAref_alloc: " + "allocating SAref=%d, table=%u, entry=%u of %u.\n", + SAref, + IPsecSAref2table(SAref), + IPsecSAref2entry(SAref), + IPSEC_SA_REF_MAINTABLE_NUM_ENTRIES * IPSEC_SA_REF_SUBTABLE_NUM_ENTRIES); + + ipsec_sadb.refFreeList[ipsec_sadb.refFreeListHead] = IPSEC_SAREF_NULL; + ipsec_sadb.refFreeListHead++; + if(ipsec_sadb.refFreeListHead > ipsec_sadb.refFreeListTail) { + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_SAref_alloc: " + "last FreeList entry allocated, resetting list head to empty.\n"); + ipsec_sadb.refFreeListHead = -1; + } + + return SAref; +} +#endif /* IPSEC_SA_REF_CODE */ + +int +ipsec_sa_print(struct ipsec_sa *ips) +{ + char sa[SATOT_BUF]; + size_t sa_len; + + printk(KERN_INFO "klips_debug: SA:"); + if(ips == NULL) { + printk("NULL\n"); + return -ENOENT; + } + printk(" ref=%d", ips->ips_ref); + printk(" refcount=%d", atomic_read(&ips->ips_refcount)); + if(ips->ips_hnext != NULL) { + printk(" hnext=0p%p", ips->ips_hnext); + } + if(ips->ips_inext != NULL) { + printk(" inext=0p%p", ips->ips_inext); + } + if(ips->ips_onext != NULL) { + printk(" onext=0p%p", ips->ips_onext); + } + sa_len = satot(&ips->ips_said, 0, sa, sizeof(sa)); + printk(" said=%s", sa_len ? sa : " (error)"); + if(ips->ips_seq) { + printk(" seq=%u", ips->ips_seq); + } + if(ips->ips_pid) { + printk(" pid=%u", ips->ips_pid); + } + if(ips->ips_authalg) { + printk(" authalg=%u", ips->ips_authalg); + } + if(ips->ips_encalg) { + printk(" encalg=%u", ips->ips_encalg); + } + printk(" XFORM=%s%s%s", IPS_XFORM_NAME(ips)); + if(ips->ips_replaywin) { + printk(" ooowin=%u", ips->ips_replaywin); + } + if(ips->ips_flags) { + printk(" flags=%u", ips->ips_flags); + } + if(ips->ips_addr_s) { + char buf[SUBNETTOA_BUF]; + addrtoa(((struct sockaddr_in*)(ips->ips_addr_s))->sin_addr, + 0, buf, sizeof(buf)); + printk(" src=%s", buf); + } + if(ips->ips_addr_d) { + char buf[SUBNETTOA_BUF]; + addrtoa(((struct sockaddr_in*)(ips->ips_addr_s))->sin_addr, + 0, buf, sizeof(buf)); + printk(" dst=%s", buf); + } + if(ips->ips_addr_p) { + char buf[SUBNETTOA_BUF]; + addrtoa(((struct sockaddr_in*)(ips->ips_addr_p))->sin_addr, + 0, buf, sizeof(buf)); + printk(" proxy=%s", buf); + } + if(ips->ips_key_bits_a) { + printk(" key_bits_a=%u", ips->ips_key_bits_a); + } + if(ips->ips_key_bits_e) { + printk(" key_bits_e=%u", ips->ips_key_bits_e); + } + + printk("\n"); + return 0; +} + +struct ipsec_sa* +ipsec_sa_alloc(int*error) /* pass in error var by pointer */ +{ + struct ipsec_sa* ips; + + if((ips = kmalloc(sizeof(*ips), GFP_ATOMIC) ) == NULL) { + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sa_alloc: " + "memory allocation error\n"); + *error = -ENOMEM; + return NULL; + } + memset((caddr_t)ips, 0, sizeof(*ips)); +#if IPSEC_SA_REF_CODE + ips->ips_ref = ipsec_SAref_alloc(error); /* pass in error return by pointer */ + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sa_alloc: " + "allocated %lu bytes for ipsec_sa struct=0p%p ref=%d.\n", + (unsigned long) sizeof(*ips), + ips, + ips->ips_ref); + if(ips->ips_ref == IPSEC_SAREF_NULL) { + kfree(ips); + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sa_alloc: " + "SAref allocation error\n"); + return NULL; + } + + atomic_inc(&ips->ips_refcount); + IPsecSAref2SA(ips->ips_ref) = ips; +#endif /* IPSEC_SA_REF_CODE */ + + *error = 0; + return(ips); +} + +int +ipsec_sa_free(struct ipsec_sa* ips) +{ + return ipsec_sa_wipe(ips); +} + +struct ipsec_sa * +ipsec_sa_getbyid(ip_said *said) +{ + int hashval; + struct ipsec_sa *ips; + char sa[SATOT_BUF]; + size_t sa_len; + + if(said == NULL) { + KLIPS_PRINT(debug_xform, + "klips_error:ipsec_sa_getbyid: " + "null pointer passed in!\n"); + return NULL; + } + + sa_len = satot(said, 0, sa, sizeof(sa)); + + hashval = IPS_HASH(said); + + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sa_getbyid: " + "linked entry in ipsec_sa table for hash=%d of SA:%s requested.\n", + hashval, + sa_len ? sa : " (error)"); + + if((ips = ipsec_sadb_hash[hashval]) == NULL) { + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sa_getbyid: " + "no entries in ipsec_sa table for hash=%d of SA:%s.\n", + hashval, + sa_len ? sa : " (error)"); + return NULL; + } + + for (; ips; ips = ips->ips_hnext) { + if ((ips->ips_said.spi == said->spi) && + (ips->ips_said.dst.u.v4.sin_addr.s_addr == said->dst.u.v4.sin_addr.s_addr) && + (ips->ips_said.proto == said->proto)) { + atomic_inc(&ips->ips_refcount); + return ips; + } + } + + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sa_getbyid: " + "no entry in linked list for hash=%d of SA:%s.\n", + hashval, + sa_len ? sa : " (error)"); + return NULL; +} + +int +ipsec_sa_put(struct ipsec_sa *ips) +{ + char sa[SATOT_BUF]; + size_t sa_len; + + if(ips == NULL) { + KLIPS_PRINT(debug_xform, + "klips_error:ipsec_sa_put: " + "null pointer passed in!\n"); + return -1; + } + + sa_len = satot(&ips->ips_said, 0, sa, sizeof(sa)); + + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sa_put: " + "ipsec_sa SA:%s, ref:%d reference count decremented.\n", + sa_len ? sa : " (error)", + ips->ips_ref); + + atomic_dec(&ips->ips_refcount); + + return 0; +} + +/* + The ipsec_sa table better *NOT* be locked before it is handed in, or SMP locks will happen +*/ +int +ipsec_sa_add(struct ipsec_sa *ips) +{ + int error = 0; + unsigned int hashval; + + if(ips == NULL) { + KLIPS_PRINT(debug_xform, + "klips_error:ipsec_sa_add: " + "null pointer passed in!\n"); + return -ENODATA; + } + hashval = IPS_HASH(&ips->ips_said); + + atomic_inc(&ips->ips_refcount); + spin_lock_bh(&tdb_lock); + + ips->ips_hnext = ipsec_sadb_hash[hashval]; + ipsec_sadb_hash[hashval] = ips; + + spin_unlock_bh(&tdb_lock); + + return error; +} + +/* + The ipsec_sa table better be locked before it is handed in, or races might happen +*/ +int +ipsec_sa_del(struct ipsec_sa *ips) +{ + unsigned int hashval; + struct ipsec_sa *ipstp; + char sa[SATOT_BUF]; + size_t sa_len; + + if(ips == NULL) { + KLIPS_PRINT(debug_xform, + "klips_error:ipsec_sa_del: " + "null pointer passed in!\n"); + return -ENODATA; + } + + sa_len = satot(&ips->ips_said, 0, sa, sizeof(sa)); + if(ips->ips_inext || ips->ips_onext) { + KLIPS_PRINT(debug_xform, + "klips_error:ipsec_sa_del: " + "SA:%s still linked!\n", + sa_len ? sa : " (error)"); + return -EMLINK; + } + + hashval = IPS_HASH(&ips->ips_said); + + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sa_del: " + "deleting SA:%s, hashval=%d.\n", + sa_len ? sa : " (error)", + hashval); + if(ipsec_sadb_hash[hashval] == NULL) { + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sa_del: " + "no entries in ipsec_sa table for hash=%d of SA:%s.\n", + hashval, + sa_len ? sa : " (error)"); + return -ENOENT; + } + + if (ips == ipsec_sadb_hash[hashval]) { + ipsec_sadb_hash[hashval] = ipsec_sadb_hash[hashval]->ips_hnext; + ips->ips_hnext = NULL; + atomic_dec(&ips->ips_refcount); + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sa_del: " + "successfully deleted first ipsec_sa in chain.\n"); + return 0; + } else { + for (ipstp = ipsec_sadb_hash[hashval]; + ipstp; + ipstp = ipstp->ips_hnext) { + if (ipstp->ips_hnext == ips) { + ipstp->ips_hnext = ips->ips_hnext; + ips->ips_hnext = NULL; + atomic_dec(&ips->ips_refcount); + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sa_del: " + "successfully deleted link in ipsec_sa chain.\n"); + return 0; + } + } + } + + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sa_del: " + "no entries in linked list for hash=%d of SA:%s.\n", + hashval, + sa_len ? sa : " (error)"); + return -ENOENT; +} + +/* + The ipsec_sa table better be locked before it is handed in, or races + might happen +*/ +int +ipsec_sa_delchain(struct ipsec_sa *ips) +{ + struct ipsec_sa *ipsdel; + int error = 0; + char sa[SATOT_BUF]; + size_t sa_len; + + if(ips == NULL) { + KLIPS_PRINT(debug_xform, + "klips_error:ipsec_sa_delchain: " + "null pointer passed in!\n"); + return -ENODATA; + } + + sa_len = satot(&ips->ips_said, 0, sa, sizeof(sa)); + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sa_delchain: " + "passed SA:%s\n", + sa_len ? sa : " (error)"); + while(ips->ips_onext != NULL) { + ips = ips->ips_onext; + } + + while(ips) { + /* XXX send a pfkey message up to advise of deleted ipsec_sa */ + sa_len = satot(&ips->ips_said, 0, sa, sizeof(sa)); + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sa_delchain: " + "unlinking and delting SA:%s", + sa_len ? sa : " (error)"); + ipsdel = ips; + ips = ips->ips_inext; + if(ips != NULL) { + sa_len = satot(&ips->ips_said, 0, sa, sizeof(sa)); + KLIPS_PRINT(debug_xform, + ", inext=%s", + sa_len ? sa : " (error)"); + atomic_dec(&ipsdel->ips_refcount); + ipsdel->ips_inext = NULL; + atomic_dec(&ips->ips_refcount); + ips->ips_onext = NULL; + } + KLIPS_PRINT(debug_xform, + ".\n"); + if((error = ipsec_sa_del(ipsdel))) { + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sa_delchain: " + "ipsec_sa_del returned error %d.\n", -error); + return error; + } + if((error = ipsec_sa_wipe(ipsdel))) { + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sa_delchain: " + "ipsec_sa_wipe returned error %d.\n", -error); + return error; + } + } + return error; +} + +int +ipsec_sadb_cleanup(__u8 proto) +{ + unsigned i; + int error = 0; + struct ipsec_sa *ips, **ipsprev, *ipsdel; + char sa[SATOT_BUF]; + size_t sa_len; + + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sadb_cleanup: " + "cleaning up proto=%d.\n", + proto); + + spin_lock_bh(&tdb_lock); + + for (i = 0; i < SADB_HASHMOD; i++) { + ipsprev = &(ipsec_sadb_hash[i]); + ips = ipsec_sadb_hash[i]; + if(ips != NULL) { + atomic_inc(&ips->ips_refcount); + } + for(; ips != NULL;) { + sa_len = satot(&ips->ips_said, 0, sa, sizeof(sa)); + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sadb_cleanup: " + "checking SA:%s, hash=%d, ref=%d", + sa_len ? sa : " (error)", + i, + ips->ips_ref); + ipsdel = ips; + ips = ipsdel->ips_hnext; + if(ips != NULL) { + atomic_inc(&ips->ips_refcount); + sa_len = satot(&ips->ips_said, 0, sa, sizeof(sa)); + KLIPS_PRINT(debug_xform, + ", hnext=%s", + sa_len ? sa : " (error)"); + } + if(*ipsprev != NULL) { + sa_len = satot(&(*ipsprev)->ips_said, 0, sa, sizeof(sa)); + KLIPS_PRINT(debug_xform, + ", *ipsprev=%s", + sa_len ? sa : " (error)"); + if((*ipsprev)->ips_hnext) { + sa_len = satot(&(*ipsprev)->ips_hnext->ips_said, 0, sa, sizeof(sa)); + KLIPS_PRINT(debug_xform, + ", *ipsprev->ips_hnext=%s", + sa_len ? sa : " (error)"); + } + } + KLIPS_PRINT(debug_xform, + ".\n"); + if(proto == 0 || (proto == ipsdel->ips_said.proto)) { + sa_len = satot(&ipsdel->ips_said, 0, sa, sizeof(sa)); + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sadb_cleanup: " + "deleting SA chain:%s.\n", + sa_len ? sa : " (error)"); + if((error = ipsec_sa_delchain(ipsdel))) { + SENDERR(-error); + } + ipsprev = &(ipsec_sadb_hash[i]); + ips = ipsec_sadb_hash[i]; + + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sadb_cleanup: " + "deleted SA chain:%s", + sa_len ? sa : " (error)"); + if(ips != NULL) { + sa_len = satot(&ips->ips_said, 0, sa, sizeof(sa)); + KLIPS_PRINT(debug_xform, + ", ipsec_sadb_hash[%d]=%s", + i, + sa_len ? sa : " (error)"); + } + if(*ipsprev != NULL) { + sa_len = satot(&(*ipsprev)->ips_said, 0, sa, sizeof(sa)); + KLIPS_PRINT(debug_xform, + ", *ipsprev=%s", + sa_len ? sa : " (error)"); + if((*ipsprev)->ips_hnext != NULL) { + sa_len = satot(&(*ipsprev)->ips_hnext->ips_said, 0, sa, sizeof(sa)); + KLIPS_PRINT(debug_xform, + ", *ipsprev->ips_hnext=%s", + sa_len ? sa : " (error)"); + } + } + KLIPS_PRINT(debug_xform, + ".\n"); + } else { + ipsprev = &ipsdel; + } + if(ipsdel != NULL) { + ipsec_sa_put(ipsdel); + } + } + } + errlab: + + spin_unlock_bh(&tdb_lock); + + +#if IPSEC_SA_REF_CODE + /* clean up SA reference table */ + + /* go through the ref table and clean out all the SAs */ + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sadb_cleanup: " + "removing SAref entries and tables."); + { + unsigned table, entry; + for(table = 0; table < IPSEC_SA_REF_MAINTABLE_NUM_ENTRIES; table++) { + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sadb_cleanup: " + "cleaning SAref table=%u.\n", + table); + if(ipsec_sadb.refTable[table] == NULL) { + printk("\n"); + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sadb_cleanup: " + "cleaned %u used refTables.\n", + table); + break; + } + for(entry = 0; entry < IPSEC_SA_REF_SUBTABLE_NUM_ENTRIES; entry++) { + if(ipsec_sadb.refTable[table]->entry[entry] != NULL) { + ipsec_sa_delchain(ipsec_sadb.refTable[table]->entry[entry]); + ipsec_sadb.refTable[table]->entry[entry] = NULL; + } + } + } + } +#endif /* IPSEC_SA_REF_CODE */ + + return(error); +} + +int +ipsec_sadb_free(void) +{ + int error = 0; + + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sadb_free: " + "freeing SArefTable memory.\n"); + + /* clean up SA reference table */ + + /* go through the ref table and clean out all the SAs if any are + left and free table memory */ + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sadb_free: " + "removing SAref entries and tables.\n"); + { + unsigned table, entry; + for(table = 0; table < IPSEC_SA_REF_MAINTABLE_NUM_ENTRIES; table++) { + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sadb_free: " + "removing SAref table=%u.\n", + table); + if(ipsec_sadb.refTable[table] == NULL) { + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sadb_free: " + "removed %u used refTables.\n", + table); + break; + } + for(entry = 0; entry < IPSEC_SA_REF_SUBTABLE_NUM_ENTRIES; entry++) { + if(ipsec_sadb.refTable[table]->entry[entry] != NULL) { + ipsec_sa_delchain(ipsec_sadb.refTable[table]->entry[entry]); + ipsec_sadb.refTable[table]->entry[entry] = NULL; + } + } + vfree(ipsec_sadb.refTable[table]); + ipsec_sadb.refTable[table] = NULL; + } + } + + return(error); +} + +int +ipsec_sa_wipe(struct ipsec_sa *ips) +{ + if(ips == NULL) { + return -ENODATA; + } + + /* if(atomic_dec_and_test(ips)) { + }; */ + +#if IPSEC_SA_REF_CODE + /* remove me from the SArefTable */ + { + char sa[SATOT_BUF]; + size_t sa_len; + sa_len = satot(&ips->ips_said, 0, sa, sizeof(sa)); + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sa_wipe: " + "removing SA=%s(0p%p), SAref=%d, table=%d(0p%p), entry=%d from the refTable.\n", + sa_len ? sa : " (error)", + ips, + ips->ips_ref, + IPsecSAref2table(IPsecSA2SAref(ips)), + ipsec_sadb.refTable[IPsecSAref2table(IPsecSA2SAref(ips))], + IPsecSAref2entry(IPsecSA2SAref(ips))); + } + if(ips->ips_ref == IPSEC_SAREF_NULL) { + KLIPS_PRINT(debug_xform, + "klips_debug:ipsec_sa_wipe: " + "why does this SA not have a valid SAref?.\n"); + } + ipsec_sadb.refTable[IPsecSAref2table(IPsecSA2SAref(ips))]->entry[IPsecSAref2entry(IPsecSA2SAref(ips))] = NULL; + ips->ips_ref = IPSEC_SAREF_NULL; + ipsec_sa_put(ips); +#endif /* IPSEC_SA_REF_CODE */ + + /* paranoid clean up */ + if(ips->ips_addr_s != NULL) { + memset((caddr_t)(ips->ips_addr_s), 0, ips->ips_addr_s_size); + kfree(ips->ips_addr_s); + } + ips->ips_addr_s = NULL; + + if(ips->ips_addr_d != NULL) { + memset((caddr_t)(ips->ips_addr_d), 0, ips->ips_addr_d_size); + kfree(ips->ips_addr_d); + } + ips->ips_addr_d = NULL; + + if(ips->ips_addr_p != NULL) { + memset((caddr_t)(ips->ips_addr_p), 0, ips->ips_addr_p_size); + kfree(ips->ips_addr_p); + } + ips->ips_addr_p = NULL; + +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL + if(ips->ips_natt_oa) { + memset((caddr_t)(ips->ips_natt_oa), 0, ips->ips_natt_oa_size); + kfree(ips->ips_natt_oa); + } + ips->ips_natt_oa = NULL; +#endif + + if(ips->ips_key_a != NULL) { + memset((caddr_t)(ips->ips_key_a), 0, ips->ips_key_a_size); + kfree(ips->ips_key_a); + } + ips->ips_key_a = NULL; + + if(ips->ips_key_e != NULL) { + if (ips->ips_alg_enc && + ips->ips_alg_enc->ixt_e_destroy_key) + { + ips->ips_alg_enc->ixt_e_destroy_key(ips->ips_alg_enc, + ips->ips_key_e); + } else + { + memset((caddr_t)(ips->ips_key_e), 0, ips->ips_key_e_size); + kfree(ips->ips_key_e); + } + } + ips->ips_key_e = NULL; + + if(ips->ips_iv != NULL) { + memset((caddr_t)(ips->ips_iv), 0, ips->ips_iv_size); + kfree(ips->ips_iv); + } + ips->ips_iv = NULL; + + if(ips->ips_ident_s.data != NULL) { + memset((caddr_t)(ips->ips_ident_s.data), + 0, + ips->ips_ident_s.len * IPSEC_PFKEYv2_ALIGN - sizeof(struct sadb_ident)); + kfree(ips->ips_ident_s.data); + } + ips->ips_ident_s.data = NULL; + + if(ips->ips_ident_d.data != NULL) { + memset((caddr_t)(ips->ips_ident_d.data), + 0, + ips->ips_ident_d.len * IPSEC_PFKEYv2_ALIGN - sizeof(struct sadb_ident)); + kfree(ips->ips_ident_d.data); + } + ips->ips_ident_d.data = NULL; + + if (ips->ips_alg_enc||ips->ips_alg_auth) { + ipsec_alg_sa_wipe(ips); + } + + memset((caddr_t)ips, 0, sizeof(*ips)); + kfree(ips); + ips = NULL; + + return 0; +} + +extern int sysctl_ipsec_debug_verbose; + +int ipsec_sa_init(struct ipsec_sa *ipsp) +{ + int i; + int error = 0; + char sa[SATOT_BUF]; + size_t sa_len; + char ipaddr_txt[ADDRTOA_BUF]; + char ipaddr2_txt[ADDRTOA_BUF]; +#if defined (CONFIG_KLIPS_AUTH_HMAC_MD5) || defined (CONFIG_KLIPS_AUTH_HMAC_SHA1) + unsigned char kb[AHMD596_BLKLEN]; +#endif + struct ipsec_alg_enc *ixt_e = NULL; + struct ipsec_alg_auth *ixt_a = NULL; + + if(ipsp == NULL) { + KLIPS_PRINT(debug_pfkey, + "ipsec_sa_init: " + "ipsp is NULL, fatal\n"); + SENDERR(EINVAL); + } + + sa_len = satot(&ipsp->ips_said, 0, sa, sizeof(sa)); + + KLIPS_PRINT(debug_pfkey, + "ipsec_sa_init: " + "(pfkey defined) called for SA:%s\n", + sa_len ? sa : " (error)"); + + KLIPS_PRINT(debug_pfkey, + "ipsec_sa_init: " + "calling init routine of %s%s%s\n", + IPS_XFORM_NAME(ipsp)); + + switch(ipsp->ips_said.proto) { + +#ifdef CONFIG_KLIPS_IPIP + case IPPROTO_IPIP: { + addrtoa(((struct sockaddr_in*)(ipsp->ips_addr_s))->sin_addr, + 0, + ipaddr_txt, sizeof(ipaddr_txt)); + addrtoa(((struct sockaddr_in*)(ipsp->ips_addr_d))->sin_addr, + 0, + ipaddr2_txt, sizeof(ipaddr_txt)); + KLIPS_PRINT(debug_pfkey, + "ipsec_sa_init: " + "(pfkey defined) IPIP ipsec_sa set for %s->%s.\n", + ipaddr_txt, + ipaddr2_txt); + } + break; +#endif /* !CONFIG_KLIPS_IPIP */ + +#ifdef CONFIG_KLIPS_AH + case IPPROTO_AH: + switch(ipsp->ips_authalg) { +# ifdef CONFIG_KLIPS_AUTH_HMAC_MD5 + case AH_MD5: { + unsigned char *akp; + unsigned int aks; + MD5_CTX *ictx; + MD5_CTX *octx; + + if(ipsp->ips_key_bits_a != (AHMD596_KLEN * 8)) { + KLIPS_PRINT(debug_pfkey, + "ipsec_sa_init: " + "incorrect key size: %d bits -- must be %d bits\n"/*octets (bytes)\n"*/, + ipsp->ips_key_bits_a, AHMD596_KLEN * 8); + SENDERR(EINVAL); + } + +# if KLIPS_DIVULGE_HMAC_KEY + KLIPS_PRINT(debug_pfkey && sysctl_ipsec_debug_verbose, + "ipsec_sa_init: " + "hmac md5-96 key is 0x%08x %08x %08x %08x\n", + ntohl(*(((__u32 *)ipsp->ips_key_a)+0)), + ntohl(*(((__u32 *)ipsp->ips_key_a)+1)), + ntohl(*(((__u32 *)ipsp->ips_key_a)+2)), + ntohl(*(((__u32 *)ipsp->ips_key_a)+3))); +# endif /* KLIPS_DIVULGE_HMAC_KEY */ + + ipsp->ips_auth_bits = AHMD596_ALEN * 8; + + /* save the pointer to the key material */ + akp = ipsp->ips_key_a; + aks = ipsp->ips_key_a_size; + + KLIPS_PRINT(debug_pfkey && sysctl_ipsec_debug_verbose, + "ipsec_sa_init: " + "allocating %lu bytes for md5_ctx.\n", + (unsigned long) sizeof(struct md5_ctx)); + if((ipsp->ips_key_a = (caddr_t) + kmalloc(sizeof(struct md5_ctx), GFP_ATOMIC)) == NULL) { + ipsp->ips_key_a = akp; + SENDERR(ENOMEM); + } + ipsp->ips_key_a_size = sizeof(struct md5_ctx); + + for (i = 0; i < DIVUP(ipsp->ips_key_bits_a, 8); i++) { + kb[i] = akp[i] ^ HMAC_IPAD; + } + for (; i < AHMD596_BLKLEN; i++) { + kb[i] = HMAC_IPAD; + } + + ictx = &(((struct md5_ctx*)(ipsp->ips_key_a))->ictx); + osMD5Init(ictx); + osMD5Update(ictx, kb, AHMD596_BLKLEN); + + for (i = 0; i < AHMD596_BLKLEN; i++) { + kb[i] ^= (HMAC_IPAD ^ HMAC_OPAD); + } + + octx = &(((struct md5_ctx*)(ipsp->ips_key_a))->octx); + osMD5Init(octx); + osMD5Update(octx, kb, AHMD596_BLKLEN); + +# if KLIPS_DIVULGE_HMAC_KEY + KLIPS_PRINT(debug_pfkey && sysctl_ipsec_debug_verbose, + "ipsec_sa_init: " + "MD5 ictx=0x%08x %08x %08x %08x octx=0x%08x %08x %08x %08x\n", + ((__u32*)ictx)[0], + ((__u32*)ictx)[1], + ((__u32*)ictx)[2], + ((__u32*)ictx)[3], + ((__u32*)octx)[0], + ((__u32*)octx)[1], + ((__u32*)octx)[2], + ((__u32*)octx)[3] ); +# endif /* KLIPS_DIVULGE_HMAC_KEY */ + + /* zero key buffer -- paranoid */ + memset(akp, 0, aks); + kfree(akp); + } + break; +# endif /* CONFIG_KLIPS_AUTH_HMAC_MD5 */ +# ifdef CONFIG_KLIPS_AUTH_HMAC_SHA1 + case AH_SHA: { + unsigned char *akp; + unsigned int aks; + SHA1_CTX *ictx; + SHA1_CTX *octx; + + if(ipsp->ips_key_bits_a != (AHSHA196_KLEN * 8)) { + KLIPS_PRINT(debug_pfkey, + "ipsec_sa_init: " + "incorrect key size: %d bits -- must be %d bits\n"/*octets (bytes)\n"*/, + ipsp->ips_key_bits_a, AHSHA196_KLEN * 8); + SENDERR(EINVAL); + } + +# if KLIPS_DIVULGE_HMAC_KEY + KLIPS_PRINT(debug_pfkey && sysctl_ipsec_debug_verbose, + "ipsec_sa_init: " + "hmac sha1-96 key is 0x%08x %08x %08x %08x\n", + ntohl(*(((__u32 *)ipsp->ips_key_a)+0)), + ntohl(*(((__u32 *)ipsp->ips_key_a)+1)), + ntohl(*(((__u32 *)ipsp->ips_key_a)+2)), + ntohl(*(((__u32 *)ipsp->ips_key_a)+3))); +# endif /* KLIPS_DIVULGE_HMAC_KEY */ + + ipsp->ips_auth_bits = AHSHA196_ALEN * 8; + + /* save the pointer to the key material */ + akp = ipsp->ips_key_a; + aks = ipsp->ips_key_a_size; + + KLIPS_PRINT(debug_pfkey && sysctl_ipsec_debug_verbose, + "ipsec_sa_init: " + "allocating %lu bytes for sha1_ctx.\n", + (unsigned long) sizeof(struct sha1_ctx)); + if((ipsp->ips_key_a = (caddr_t) + kmalloc(sizeof(struct sha1_ctx), GFP_ATOMIC)) == NULL) { + ipsp->ips_key_a = akp; + SENDERR(ENOMEM); + } + ipsp->ips_key_a_size = sizeof(struct sha1_ctx); + + for (i = 0; i < DIVUP(ipsp->ips_key_bits_a, 8); i++) { + kb[i] = akp[i] ^ HMAC_IPAD; + } + for (; i < AHMD596_BLKLEN; i++) { + kb[i] = HMAC_IPAD; + } + + ictx = &(((struct sha1_ctx*)(ipsp->ips_key_a))->ictx); + SHA1Init(ictx); + SHA1Update(ictx, kb, AHSHA196_BLKLEN); + + for (i = 0; i < AHSHA196_BLKLEN; i++) { + kb[i] ^= (HMAC_IPAD ^ HMAC_OPAD); + } + + octx = &(((struct sha1_ctx*)(ipsp->ips_key_a))->octx); + SHA1Init(octx); + SHA1Update(octx, kb, AHSHA196_BLKLEN); + +# if KLIPS_DIVULGE_HMAC_KEY + KLIPS_PRINT(debug_pfkey && sysctl_ipsec_debug_verbose, + "ipsec_sa_init: " + "SHA1 ictx=0x%08x %08x %08x %08x octx=0x%08x %08x %08x %08x\n", + ((__u32*)ictx)[0], + ((__u32*)ictx)[1], + ((__u32*)ictx)[2], + ((__u32*)ictx)[3], + ((__u32*)octx)[0], + ((__u32*)octx)[1], + ((__u32*)octx)[2], + ((__u32*)octx)[3] ); +# endif /* KLIPS_DIVULGE_HMAC_KEY */ + /* zero key buffer -- paranoid */ + memset(akp, 0, aks); + kfree(akp); + } + break; +# endif /* CONFIG_KLIPS_AUTH_HMAC_SHA1 */ + default: + KLIPS_PRINT(debug_pfkey, + "ipsec_sa_init: " + "authalg=%d support not available in the kernel", + ipsp->ips_authalg); + SENDERR(EINVAL); + } + break; +#endif /* CONFIG_KLIPS_AH */ + +#ifdef CONFIG_KLIPS_ESP + case IPPROTO_ESP: + { +#if defined (CONFIG_KLIPS_AUTH_HMAC_MD5) || defined (CONFIG_KLIPS_AUTH_HMAC_SHA1) + unsigned char *akp; + unsigned int aks; +#endif + + ipsec_alg_sa_init(ipsp); + ixt_e=ipsp->ips_alg_enc; + + if (ixt_e == NULL) { + if(printk_ratelimit()) { + printk(KERN_INFO + "ipsec_sa_init: " + "encalg=%d support not available in the kernel", + ipsp->ips_encalg); + } + SENDERR(ENOENT); + } + + ipsp->ips_iv_size = ixt_e->ixt_common.ixt_support.ias_ivlen/8; + + /* Create IV */ + if (ipsp->ips_iv_size) { + if((ipsp->ips_iv = (caddr_t) + kmalloc(ipsp->ips_iv_size, GFP_ATOMIC)) == NULL) { + SENDERR(ENOMEM); + } + prng_bytes(&ipsec_prng, + (char *)ipsp->ips_iv, + ipsp->ips_iv_size); + ipsp->ips_iv_bits = ipsp->ips_iv_size * 8; + } + + if ((error=ipsec_alg_enc_key_create(ipsp)) < 0) + SENDERR(-error); + + if ((ixt_a=ipsp->ips_alg_auth)) { + if ((error=ipsec_alg_auth_key_create(ipsp)) < 0) + SENDERR(-error); + } else + + switch(ipsp->ips_authalg) { +# ifdef CONFIG_KLIPS_AUTH_HMAC_MD5 + case AH_MD5: { + MD5_CTX *ictx; + MD5_CTX *octx; + + if(ipsp->ips_key_bits_a != (AHMD596_KLEN * 8)) { + KLIPS_PRINT(debug_pfkey, + "ipsec_sa_init: " + "incorrect authorisation key size: %d bits -- must be %d bits\n"/*octets (bytes)\n"*/, + ipsp->ips_key_bits_a, + AHMD596_KLEN * 8); + SENDERR(EINVAL); + } + +# if KLIPS_DIVULGE_HMAC_KEY + KLIPS_PRINT(debug_pfkey && sysctl_ipsec_debug_verbose, + "ipsec_sa_init: " + "hmac md5-96 key is 0x%08x %08x %08x %08x\n", + ntohl(*(((__u32 *)(ipsp->ips_key_a))+0)), + ntohl(*(((__u32 *)(ipsp->ips_key_a))+1)), + ntohl(*(((__u32 *)(ipsp->ips_key_a))+2)), + ntohl(*(((__u32 *)(ipsp->ips_key_a))+3))); +# endif /* KLIPS_DIVULGE_HMAC_KEY */ + ipsp->ips_auth_bits = AHMD596_ALEN * 8; + + /* save the pointer to the key material */ + akp = ipsp->ips_key_a; + aks = ipsp->ips_key_a_size; + + KLIPS_PRINT(debug_pfkey && sysctl_ipsec_debug_verbose, + "ipsec_sa_init: " + "allocating %lu bytes for md5_ctx.\n", + (unsigned long) sizeof(struct md5_ctx)); + if((ipsp->ips_key_a = (caddr_t) + kmalloc(sizeof(struct md5_ctx), GFP_ATOMIC)) == NULL) { + ipsp->ips_key_a = akp; + SENDERR(ENOMEM); + } + ipsp->ips_key_a_size = sizeof(struct md5_ctx); + + for (i = 0; i < DIVUP(ipsp->ips_key_bits_a, 8); i++) { + kb[i] = akp[i] ^ HMAC_IPAD; + } + for (; i < AHMD596_BLKLEN; i++) { + kb[i] = HMAC_IPAD; + } + + ictx = &(((struct md5_ctx*)(ipsp->ips_key_a))->ictx); + osMD5Init(ictx); + osMD5Update(ictx, kb, AHMD596_BLKLEN); + + for (i = 0; i < AHMD596_BLKLEN; i++) { + kb[i] ^= (HMAC_IPAD ^ HMAC_OPAD); + } + + octx = &(((struct md5_ctx*)(ipsp->ips_key_a))->octx); + osMD5Init(octx); + osMD5Update(octx, kb, AHMD596_BLKLEN); + +# if KLIPS_DIVULGE_HMAC_KEY + KLIPS_PRINT(debug_pfkey && sysctl_ipsec_debug_verbose, + "ipsec_sa_init: " + "MD5 ictx=0x%08x %08x %08x %08x octx=0x%08x %08x %08x %08x\n", + ((__u32*)ictx)[0], + ((__u32*)ictx)[1], + ((__u32*)ictx)[2], + ((__u32*)ictx)[3], + ((__u32*)octx)[0], + ((__u32*)octx)[1], + ((__u32*)octx)[2], + ((__u32*)octx)[3] ); +# endif /* KLIPS_DIVULGE_HMAC_KEY */ + /* paranoid */ + memset(akp, 0, aks); + kfree(akp); + break; + } +# endif /* CONFIG_KLIPS_AUTH_HMAC_MD5 */ +# ifdef CONFIG_KLIPS_AUTH_HMAC_SHA1 + case AH_SHA: { + SHA1_CTX *ictx; + SHA1_CTX *octx; + + if(ipsp->ips_key_bits_a != (AHSHA196_KLEN * 8)) { + KLIPS_PRINT(debug_pfkey, + "ipsec_sa_init: " + "incorrect authorisation key size: %d bits -- must be %d bits\n"/*octets (bytes)\n"*/, + ipsp->ips_key_bits_a, + AHSHA196_KLEN * 8); + SENDERR(EINVAL); + } + +# if KLIPS_DIVULGE_HMAC_KEY + KLIPS_PRINT(debug_pfkey && sysctl_ipsec_debug_verbose, + "ipsec_sa_init: " + "hmac sha1-96 key is 0x%08x %08x %08x %08x\n", + ntohl(*(((__u32 *)ipsp->ips_key_a)+0)), + ntohl(*(((__u32 *)ipsp->ips_key_a)+1)), + ntohl(*(((__u32 *)ipsp->ips_key_a)+2)), + ntohl(*(((__u32 *)ipsp->ips_key_a)+3))); +# endif /* KLIPS_DIVULGE_HMAC_KEY */ + ipsp->ips_auth_bits = AHSHA196_ALEN * 8; + + /* save the pointer to the key material */ + akp = ipsp->ips_key_a; + aks = ipsp->ips_key_a_size; + + KLIPS_PRINT(debug_pfkey && sysctl_ipsec_debug_verbose, + "ipsec_sa_init: " + "allocating %lu bytes for sha1_ctx.\n", + (unsigned long) sizeof(struct sha1_ctx)); + if((ipsp->ips_key_a = (caddr_t) + kmalloc(sizeof(struct sha1_ctx), GFP_ATOMIC)) == NULL) { + ipsp->ips_key_a = akp; + SENDERR(ENOMEM); + } + ipsp->ips_key_a_size = sizeof(struct sha1_ctx); + + for (i = 0; i < DIVUP(ipsp->ips_key_bits_a, 8); i++) { + kb[i] = akp[i] ^ HMAC_IPAD; + } + for (; i < AHMD596_BLKLEN; i++) { + kb[i] = HMAC_IPAD; + } + + ictx = &(((struct sha1_ctx*)(ipsp->ips_key_a))->ictx); + SHA1Init(ictx); + SHA1Update(ictx, kb, AHSHA196_BLKLEN); + + for (i = 0; i < AHSHA196_BLKLEN; i++) { + kb[i] ^= (HMAC_IPAD ^ HMAC_OPAD); + } + + octx = &((struct sha1_ctx*)(ipsp->ips_key_a))->octx; + SHA1Init(octx); + SHA1Update(octx, kb, AHSHA196_BLKLEN); + +# if KLIPS_DIVULGE_HMAC_KEY + KLIPS_PRINT(debug_pfkey && sysctl_ipsec_debug_verbose, + "ipsec_sa_init: " + "SHA1 ictx=0x%08x %08x %08x %08x octx=0x%08x %08x %08x %08x\n", + ((__u32*)ictx)[0], + ((__u32*)ictx)[1], + ((__u32*)ictx)[2], + ((__u32*)ictx)[3], + ((__u32*)octx)[0], + ((__u32*)octx)[1], + ((__u32*)octx)[2], + ((__u32*)octx)[3] ); +# endif /* KLIPS_DIVULGE_HMAC_KEY */ + memset(akp, 0, aks); + kfree(akp); + break; + } +# endif /* CONFIG_KLIPS_AUTH_HMAC_SHA1 */ + case AH_NONE: + break; + default: + KLIPS_PRINT(debug_pfkey, + "ipsec_sa_init: " + "authalg=%d support not available in the kernel.\n", + ipsp->ips_authalg); + SENDERR(EINVAL); + } + } + break; +#endif /* !CONFIG_KLIPS_ESP */ +#ifdef CONFIG_KLIPS_IPCOMP + case IPPROTO_COMP: + ipsp->ips_comp_adapt_tries = 0; + ipsp->ips_comp_adapt_skip = 0; + ipsp->ips_comp_ratio_cbytes = 0; + ipsp->ips_comp_ratio_dbytes = 0; + break; +#endif /* CONFIG_KLIPS_IPCOMP */ + default: + printk(KERN_ERR "KLIPS sa initialization: " + "proto=%d unknown.\n", + ipsp->ips_said.proto); + SENDERR(EINVAL); + } + + errlab: + return(error); +} + + + +/* + * $Log: ipsec_sa.c,v $ + * Revision 1.30.2.2 2006/10/06 21:39:26 paul + * Fix for 2.6.18+ only include linux/config.h if AUTOCONF_INCLUDED is not + * set. This is defined through autoconf.h which is included through the + * linux kernel build macros. + * + * Revision 1.30.2.1 2006/04/20 16:33:07 mcr + * remove all of CONFIG_KLIPS_ALG --- one can no longer build without it. + * Fix in-kernel module compilation. Sub-makefiles do not work. + * + * Revision 1.30 2005/05/24 01:02:35 mcr + * some refactoring/simplification of situation where alg + * is not found. + * + * Revision 1.29 2005/05/18 19:13:28 mcr + * rename debug messages. make sure that algo not found is not + * a debug message. + * + * Revision 1.28 2005/05/11 01:30:20 mcr + * removed "poor-man"s OOP in favour of proper C structures. + * + * Revision 1.27 2005/04/29 05:10:22 mcr + * removed from extraenous includes to make unit testing easier. + * + * Revision 1.26 2005/04/14 20:56:24 mcr + * moved (pfkey_)ipsec_sa_init to ipsec_sa.c. + * + * Revision 1.25 2004/08/22 20:12:16 mcr + * one more KLIPS_NAT->IPSEC_NAT. + * + * Revision 1.24 2004/07/10 19:11:18 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.23 2004/04/06 02:49:26 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.22.2.1 2003/12/22 15:25:52 jjo + * . Merged algo-0.8.1-rc11-test1 into alg-branch + * + * Revision 1.22 2003/12/10 01:14:27 mcr + * NAT-traversal patches to KLIPS. + * + * Revision 1.21 2003/10/31 02:27:55 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.20.4.1 2003/10/29 01:30:41 mcr + * elimited "struct sa_id". + * + * Revision 1.20 2003/02/06 01:50:34 rgb + * Fixed initialisation bug for first sadb hash bucket that would only manifest itself on platforms where NULL != 0. + * + * Revision 1.19 2003/01/30 02:32:22 rgb + * + * Rename SAref table macro names for clarity. + * Transmit error code through to caller from callee for better diagnosis of problems. + * Convert IPsecSAref_t from signed to unsigned to fix apparent SAref exhaustion bug. + * + * Revision 1.18 2002/10/12 23:11:53 dhr + * + * [KenB + DHR] more 64-bit cleanup + * + * Revision 1.17 2002/10/07 18:31:43 rgb + * Move field width sanity checks to ipsec_sa.c + * + * Revision 1.16 2002/09/20 15:41:02 rgb + * Re-wrote most of the SAref code to eliminate Entry pointers. + * Added SAref code compiler directive switch. + * Added a saref test function for testing macros. + * Switch from pfkey_alloc_ipsec_sa() to ipsec_sa_alloc(). + * Split ipsec_sadb_cleanup from new funciton ipsec_sadb_free to avoid problem + * of freeing newly created structures when clearing the reftable upon startup + * to start from a known state. + * Place all ipsec sadb globals into one struct. + * Rework saref freelist. + * Added memory allocation debugging. + * + * Revision 1.15 2002/09/20 05:01:44 rgb + * Update copyright date. + * + * Revision 1.14 2002/08/13 19:01:25 mcr + * patches from kenb to permit compilation of FreeSWAN on ia64. + * des library patched to use proper DES_LONG type for ia64. + * + * Revision 1.13 2002/07/29 03:06:20 mcr + * get rid of variable not used warnings. + * + * Revision 1.12 2002/07/26 08:48:31 rgb + * Added SA ref table code. + * + * Revision 1.11 2002/06/04 16:48:49 rgb + * Tidied up pointer code for processor independance. + * + * Revision 1.10 2002/05/23 07:16:17 rgb + * Added ipsec_sa_put() for releasing an ipsec_sa refcount. + * Pointer clean-up. + * Added refcount code. + * Convert "usecount" to "refcount" to remove ambiguity. + * + * Revision 1.9 2002/05/14 02:34:49 rgb + * Converted reference from ipsec_sa_put to ipsec_sa_add to avoid confusion + * with "put" usage in the kernel. + * Change all references to tdb, TDB or Tunnel Descriptor Block to ips, + * ipsec_sa or ipsec_sa. + * Added some preliminary refcount code. + * + * Revision 1.8 2002/04/24 07:55:32 mcr + * #include patches and Makefiles for post-reorg compilation. + * + * Revision 1.7 2002/04/24 07:36:30 mcr + * Moved from ./klips/net/ipsec/ipsec_sa.c,v + * + * Revision 1.6 2002/04/20 00:12:25 rgb + * Added esp IV CBC attack fix, disabled. + * + * Revision 1.5 2002/01/29 17:17:56 mcr + * moved include of ipsec_param.h to after include of linux/kernel.h + * otherwise, it seems that some option that is set in ipsec_param.h + * screws up something subtle in the include path to kernel.h, and + * it complains on the snprintf() prototype. + * + * Revision 1.4 2002/01/29 04:00:52 mcr + * more excise of kversions.h header. + * + * Revision 1.3 2002/01/29 02:13:18 mcr + * introduction of ipsec_kversion.h means that include of + * ipsec_param.h must preceed any decisions about what files to + * include to deal with differences in kernel source. + * + * Revision 1.2 2001/11/26 09:16:15 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.1.2.2 2001/10/22 21:05:41 mcr + * removed phony prototype for des_set_key. + * + * Revision 1.1.2.1 2001/09/25 02:24:57 mcr + * struct tdb -> struct ipsec_sa. + * sa(tdb) manipulation functions renamed and moved to ipsec_sa.c + * ipsec_xform.c removed. header file still contains useful things. + * + * + * + * CLONED from ipsec_xform.c: + * Revision 1.53 2001/09/08 21:13:34 rgb + * Added pfkey ident extension support for ISAKMPd. (NetCelo) + * + * Revision 1.52 2001/06/14 19:35:11 rgb + * Update copyright date. + * + * Revision 1.51 2001/05/30 08:14:03 rgb + * Removed vestiges of esp-null transforms. + * + * Revision 1.50 2001/05/03 19:43:18 rgb + * Initialise error return variable. + * Update SENDERR macro. + * Fix sign of error return code for ipsec_tdbcleanup(). + * Use more appropriate return code for ipsec_tdbwipe(). + * + * Revision 1.49 2001/04/19 18:56:17 rgb + * Fixed tdb table locking comments. + * + * Revision 1.48 2001/02/27 22:24:55 rgb + * Re-formatting debug output (line-splitting, joining, 1arg/line). + * Check for satoa() return codes. + * + * Revision 1.47 2000/11/06 04:32:08 rgb + * Ditched spin_lock_irqsave in favour of spin_lock_bh. + * + * Revision 1.46 2000/09/20 16:21:57 rgb + * Cleaned up ident string alloc/free. + * + * Revision 1.45 2000/09/08 19:16:51 rgb + * Change references from DEBUG_IPSEC to CONFIG_IPSEC_DEBUG. + * Removed all references to CONFIG_IPSEC_PFKEYv2. + * + * Revision 1.44 2000/08/30 05:29:04 rgb + * Compiler-define out no longer used tdb_init() in ipsec_xform.c. + * + * Revision 1.43 2000/08/18 21:30:41 rgb + * Purged all tdb_spi, tdb_proto and tdb_dst macros. They are unclear. + * + * Revision 1.42 2000/08/01 14:51:51 rgb + * Removed _all_ remaining traces of DES. + * + * Revision 1.41 2000/07/28 14:58:31 rgb + * Changed kfree_s to kfree, eliminating extra arg to fix 2.4.0-test5. + * + * Revision 1.40 2000/06/28 05:50:11 rgb + * Actually set iv_bits. + * + * Revision 1.39 2000/05/10 23:11:09 rgb + * Added netlink debugging output. + * Added a cast to quiet down the ntohl bug. + * + * Revision 1.38 2000/05/10 19:18:42 rgb + * Cast output of ntohl so that the broken prototype doesn't make our + * compile noisy. + * + * Revision 1.37 2000/03/16 14:04:59 rgb + * Hardwired CONFIG_IPSEC_PFKEYv2 on. + * + * Revision 1.36 2000/01/26 10:11:28 rgb + * Fixed spacing in error text causing run-in words. + * + * Revision 1.35 2000/01/21 06:17:16 rgb + * Tidied up compiler directive indentation for readability. + * Added ictx,octx vars for simplification.(kravietz) + * Added macros for HMAC padding magic numbers.(kravietz) + * Fixed missing key length reporting bug. + * Fixed bug in tdbwipe to return immediately on NULL tdbp passed in. + * + * Revision 1.34 1999/12/08 00:04:19 rgb + * Fixed SA direction overwriting bug for netlink users. + * + * Revision 1.33 1999/12/01 22:16:44 rgb + * Minor formatting changes in ESP MD5 initialisation. + * + * Revision 1.32 1999/11/25 09:06:36 rgb + * Fixed error return messages, should be returning negative numbers. + * Implemented SENDERR macro for propagating error codes. + * Added debug message and separate error code for algorithms not compiled + * in. + * + * Revision 1.31 1999/11/23 23:06:26 rgb + * Sort out pfkey and freeswan headers, putting them in a library path. + * + * Revision 1.30 1999/11/18 04:09:20 rgb + * Replaced all kernel version macros to shorter, readable form. + * + * Revision 1.29 1999/11/17 15:53:40 rgb + * Changed all occurrences of #include "../../../lib/freeswan.h" + * to #include which works due to -Ilibfreeswan in the + * klips/net/ipsec/Makefile. + * + * Revision 1.28 1999/10/18 20:04:01 rgb + * Clean-out unused cruft. + * + * Revision 1.27 1999/10/03 19:01:03 rgb + * Spinlock support for 2.3.xx and 2.0.xx kernels. + * + * Revision 1.26 1999/10/01 16:22:24 rgb + * Switch from assignment init. to functional init. of spinlocks. + * + * Revision 1.25 1999/10/01 15:44:54 rgb + * Move spinlock header include to 2.1> scope. + * + * Revision 1.24 1999/10/01 00:03:46 rgb + * Added tdb structure locking. + * Minor formatting changes. + * Add function to initialize tdb hash table. + * + * Revision 1.23 1999/05/25 22:42:12 rgb + * Add deltdbchain() debugging. + * + * Revision 1.22 1999/05/25 21:24:31 rgb + * Add debugging statements to deltdbchain(). + * + * Revision 1.21 1999/05/25 03:51:48 rgb + * Refix error return code. + * + * Revision 1.20 1999/05/25 03:34:07 rgb + * Fix error return for flush. + * + * Revision 1.19 1999/05/09 03:25:37 rgb + * Fix bug introduced by 2.2 quick-and-dirty patch. + * + * Revision 1.18 1999/05/05 22:02:32 rgb + * Add a quick and dirty port to 2.2 kernels by Marc Boucher . + * + * Revision 1.17 1999/04/29 15:20:16 rgb + * Change gettdb parameter to a pointer to reduce stack loading and + * facilitate parameter sanity checking. + * Add sanity checking for null pointer arguments. + * Add debugging instrumentation. + * Add function deltdbchain() which will take care of unlinking, + * zeroing and deleting a chain of tdbs. + * Add a parameter to tdbcleanup to be able to delete a class of SAs. + * tdbwipe now actually zeroes the tdb as well as any of its pointed + * structures. + * + * Revision 1.16 1999/04/16 15:36:29 rgb + * Fix cut-and-paste error causing a memory leak in IPIP TDB freeing. + * + * Revision 1.15 1999/04/11 00:29:01 henry + * GPL boilerplate + * + * Revision 1.14 1999/04/06 04:54:28 rgb + * Fix/Add RCSID Id: and Log: bits to make PHMDs happy. This includes + * patch shell fixes. + * + * Revision 1.13 1999/02/19 18:23:01 rgb + * Nix debug off compile warning. + * + * Revision 1.12 1999/02/17 16:52:16 rgb + * Consolidate satoa()s for space and speed efficiency. + * Convert DEBUG_IPSEC to KLIPS_PRINT + * Clean out unused cruft. + * Ditch NET_IPIP dependancy. + * Loop for 3des key setting. + * + * Revision 1.11 1999/01/26 02:09:05 rgb + * Remove ah/esp/IPIP switching on include files. + * Removed CONFIG_IPSEC_ALGO_SWITCH macro. + * Removed dead code. + * Clean up debug code when switched off. + * Remove references to INET_GET_PROTOCOL. + * Added code exclusion macros to reduce code from unused algorithms. + * + * Revision 1.10 1999/01/22 06:28:55 rgb + * Cruft clean-out. + * Put random IV generation in kernel. + * Added algorithm switch code. + * Enhanced debugging. + * 64-bit clean-up. + * + * Revision 1.9 1998/11/30 13:22:55 rgb + * Rationalised all the klips kernel file headers. They are much shorter + * now and won't conflict under RH5.2. + * + * Revision 1.8 1998/11/25 04:59:06 rgb + * Add conditionals for no IPIP tunnel code. + * Delete commented out code. + * + * Revision 1.7 1998/10/31 06:50:41 rgb + * Convert xform ASCII names to no spaces. + * Fixed up comments in #endif directives. + * + * Revision 1.6 1998/10/19 14:44:28 rgb + * Added inclusion of freeswan.h. + * sa_id structure implemented and used: now includes protocol. + * + * Revision 1.5 1998/10/09 04:32:19 rgb + * Added 'klips_debug' prefix to all klips printk debug statements. + * + * Revision 1.4 1998/08/12 00:11:31 rgb + * Added new xform functions to the xform table. + * Fixed minor debug output spelling error. + * + * Revision 1.3 1998/07/09 17:45:31 rgb + * Clarify algorithm not available message. + * + * Revision 1.2 1998/06/23 03:00:51 rgb + * Check for presence of IPIP protocol if it is setup one way (we don't + * know what has been set up the other way and can only assume it will be + * symmetrical with the exception of keys). + * + * Revision 1.1 1998/06/18 21:27:51 henry + * move sources from klips/src to klips/net/ipsec, to keep stupid + * kernel-build scripts happier in the presence of symlinks + * + * Revision 1.3 1998/06/11 05:54:59 rgb + * Added transform version string pointer to xformsw initialisations. + * + * Revision 1.2 1998/04/21 21:28:57 rgb + * Rearrange debug switches to change on the fly debug output from user + * space. Only kernel changes checked in at this time. radij.c was also + * changed to temporarily remove buggy debugging code in rj_delete causing + * an OOPS and hence, netlink device open errors. + * + * Revision 1.1 1998/04/09 03:06:13 henry + * sources moved up from linux/net/ipsec + * + * Revision 1.1.1.1 1998/04/08 05:35:02 henry + * RGB's ipsec-0.8pre2.tar.gz ipsec-0.8 + * + * Revision 0.5 1997/06/03 04:24:48 ji + * Added ESP-3DES-MD5-96 + * + * Revision 0.4 1997/01/15 01:28:15 ji + * Added new transforms. + * + * Revision 0.3 1996/11/20 14:39:04 ji + * Minor cleanups. + * Rationalized debugging code. + * + * Revision 0.2 1996/11/02 00:18:33 ji + * First limited release. + * + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ipsec_sha1.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,219 @@ +/* + * RCSID $Id: ipsec_sha1.c,v 1.9 2004/04/06 02:49:26 mcr Exp $ + */ + +/* + * The rest of the code is derived from sha1.c by Steve Reid, which is + * public domain. + * Minor cosmetic changes to accomodate it in the Linux kernel by ji. + */ + +#include +#include + +#include "openswan/ipsec_sha1.h" + +#if defined(rol) +#undef rol +#endif + +#define SHA1HANDSOFF + +#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits)))) + +/* blk0() and blk() perform the initial expand. */ +/* I got the idea of expanding during the round function from SSLeay */ +#ifdef __LITTLE_ENDIAN +#define blk0(i) (block->l[i] = (rol(block->l[i],24)&0xFF00FF00) \ + |(rol(block->l[i],8)&0x00FF00FF)) +#else +#define blk0(i) block->l[i] +#endif +#define blk(i) (block->l[i&15] = rol(block->l[(i+13)&15]^block->l[(i+8)&15] \ + ^block->l[(i+2)&15]^block->l[i&15],1)) + +/* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */ +#define R0(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk0(i)+0x5A827999+rol(v,5);w=rol(w,30); +#define R1(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=rol(w,30); +#define R2(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=rol(w,30); +#define R3(v,w,x,y,z,i) z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=rol(w,30); +#define R4(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=rol(w,30); + + +/* Hash a single 512-bit block. This is the core of the algorithm. */ + +void SHA1Transform(__u32 state[5], __u8 buffer[64]) +{ +__u32 a, b, c, d, e; +typedef union { + unsigned char c[64]; + __u32 l[16]; +} CHAR64LONG16; +CHAR64LONG16* block; +#ifdef SHA1HANDSOFF +static unsigned char workspace[64]; + block = (CHAR64LONG16*)workspace; + memcpy(block, buffer, 64); +#else + block = (CHAR64LONG16*)buffer; +#endif + /* Copy context->state[] to working vars */ + a = state[0]; + b = state[1]; + c = state[2]; + d = state[3]; + e = state[4]; + /* 4 rounds of 20 operations each. Loop unrolled. */ + R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); R0(c,d,e,a,b, 3); + R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7); + R0(c,d,e,a,b, 8); R0(b,c,d,e,a, 9); R0(a,b,c,d,e,10); R0(e,a,b,c,d,11); + R0(d,e,a,b,c,12); R0(c,d,e,a,b,13); R0(b,c,d,e,a,14); R0(a,b,c,d,e,15); + R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19); + R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23); + R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27); + R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31); + R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35); + R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39); + R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43); + R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47); + R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51); + R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55); + R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59); + R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63); + R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67); + R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71); + R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75); + R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79); + /* Add the working vars back into context.state[] */ + state[0] += a; + state[1] += b; + state[2] += c; + state[3] += d; + state[4] += e; + /* Wipe variables */ + a = b = c = d = e = 0; +} + + +/* SHA1Init - Initialize new context */ + +void SHA1Init(void *vcontext) +{ + SHA1_CTX* context = vcontext; + + /* SHA1 initialization constants */ + context->state[0] = 0x67452301; + context->state[1] = 0xEFCDAB89; + context->state[2] = 0x98BADCFE; + context->state[3] = 0x10325476; + context->state[4] = 0xC3D2E1F0; + context->count[0] = context->count[1] = 0; +} + + +/* Run your data through this. */ + +void SHA1Update(void *vcontext, unsigned char* data, __u32 len) +{ + SHA1_CTX* context = vcontext; + __u32 i, j; + + j = context->count[0]; + if ((context->count[0] += len << 3) < j) + context->count[1]++; + context->count[1] += (len>>29); + j = (j >> 3) & 63; + if ((j + len) > 63) { + memcpy(&context->buffer[j], data, (i = 64-j)); + SHA1Transform(context->state, context->buffer); + for ( ; i + 63 < len; i += 64) { + SHA1Transform(context->state, &data[i]); + } + j = 0; + } + else i = 0; + memcpy(&context->buffer[j], &data[i], len - i); +} + + +/* Add padding and return the message digest. */ + +void SHA1Final(unsigned char digest[20], void *vcontext) +{ + __u32 i, j; + unsigned char finalcount[8]; + SHA1_CTX* context = vcontext; + + for (i = 0; i < 8; i++) { + finalcount[i] = (unsigned char)((context->count[(i >= 4 ? 0 : 1)] + >> ((3-(i & 3)) * 8) ) & 255); /* Endian independent */ + } + SHA1Update(context, (unsigned char *)"\200", 1); + while ((context->count[0] & 504) != 448) { + SHA1Update(context, (unsigned char *)"\0", 1); + } + SHA1Update(context, finalcount, 8); /* Should cause a SHA1Transform() */ + for (i = 0; i < 20; i++) { + digest[i] = (unsigned char) + ((context->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255); + } + /* Wipe variables */ + i = j = 0; + memset(context->buffer, 0, 64); + memset(context->state, 0, 20); + memset(context->count, 0, 8); + memset(&finalcount, 0, 8); +#ifdef SHA1HANDSOFF /* make SHA1Transform overwrite its own static vars */ + SHA1Transform(context->state, context->buffer); +#endif +} + + +/* + * $Log: ipsec_sha1.c,v $ + * Revision 1.9 2004/04/06 02:49:26 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.8 2002/09/10 01:45:14 mcr + * changed type of MD5_CTX and SHA1_CTX to void * so that + * the function prototypes would match, and could be placed + * into a pointer to a function. + * + * Revision 1.7 2002/04/24 07:55:32 mcr + * #include patches and Makefiles for post-reorg compilation. + * + * Revision 1.6 2002/04/24 07:36:30 mcr + * Moved from ./klips/net/ipsec/ipsec_sha1.c,v + * + * Revision 1.5 1999/12/13 13:59:13 rgb + * Quick fix to argument size to Update bugs. + * + * Revision 1.4 1999/04/11 00:29:00 henry + * GPL boilerplate + * + * Revision 1.3 1999/04/06 04:54:27 rgb + * Fix/Add RCSID Id: and Log: bits to make PHMDs happy. This includes + * patch shell fixes. + * + * Revision 1.2 1999/01/22 06:55:50 rgb + * 64-bit clean-up. + * + * Revision 1.1 1998/06/18 21:27:50 henry + * move sources from klips/src to klips/net/ipsec, to keep stupid + * kernel-build scripts happier in the presence of symlinks + * + * Revision 1.2 1998/04/23 20:54:04 rgb + * Fixed md5 and sha1 include file nesting issues, to be cleaned up when + * verified. + * + * Revision 1.1 1998/04/09 03:06:11 henry + * sources moved up from linux/net/ipsec + * + * Revision 1.1.1.1 1998/04/08 05:35:05 henry + * RGB's ipsec-0.8pre2.tar.gz ipsec-0.8 + * + * Revision 0.4 1997/01/15 01:28:15 ji + * New transform + * + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ipsec_snprintf.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,135 @@ +/* + * @(#) ipsec_snprintf() function + * + * Copyright (C) 1998, 1999, 2000, 2001 Richard Guy Briggs + * 2001 Michael Richardson + * Copyright (C) 2005 Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * Split out from ipsec_proc.c. + */ + +#ifndef AUTOCONF_INCLUDED +#include +#endif +#include +#define __NO_VERSION__ +#include +#include /* printk() */ + +#include "openswan/ipsec_kversion.h" +#include "openswan/ipsec_param.h" + +#include + +#include "openswan/radij.h" + +#include "openswan/ipsec_life.h" +#include "openswan/ipsec_stats.h" +#include "openswan/ipsec_sa.h" + +#include "openswan/ipsec_encap.h" +#include "openswan/ipsec_radij.h" +#include "openswan/ipsec_xform.h" +#include "openswan/ipsec_tunnel.h" +#include "openswan/ipsec_xmit.h" + +#include "openswan/ipsec_rcv.h" +#include "openswan/ipsec_ah.h" +#include "openswan/ipsec_esp.h" +#include "openswan/ipsec_kern24.h" + +#ifdef CONFIG_KLIPS_IPCOMP +#include "openswan/ipcomp.h" +#endif /* CONFIG_KLIPS_IPCOMP */ + +#include "openswan/ipsec_proto.h" + +#include +#include + +/* ipsec_snprintf: like snprintf except + * - size is signed and a negative value is treated as if it were 0 + * - the returned result is never negative -- + * an error generates a "?" or null output (depending on space). + * (Our callers are too lazy to check for an error return.) + * + * @param buf String buffer + * @param size Size of the string + * @param fmt printf string + * @param ... Variables to be displayed in fmt + * @return int Return code + */ +int ipsec_snprintf(char *buf, ssize_t size, const char *fmt, ...) +{ + va_list args; + int i; + size_t possize = size < 0? 0 : size; + va_start(args, fmt); + i = vsnprintf(buf,possize,fmt,args); + va_end(args); + if (i < 0) { + /* create empty output in place of error */ + i = 0; + if (size > 0) { + *buf = '\0'; + } + } + return i; +} + + +void ipsec_dmp_block(char *s, caddr_t bb, int len) +{ + int i; + unsigned char *b = bb; + + printk(KERN_INFO "klips_dmp: " + "at %s, len=%d:\n", s, len); + + for(i = 0; i < len; i++ /*, c++*/) { + if(!(i % 16)) { + printk(KERN_INFO + "klips_debug: @%03x:", + i); + } + printk(" %02x", b[i]); + if(!((i + 1) % 16)) { + printk("\n"); + } + } + if(i % 16) { + printk("\n"); + } +} + +/* + * + * $Log: ipsec_snprintf.c,v $ + * Revision 1.3.2.1 2006/10/06 21:39:26 paul + * Fix for 2.6.18+ only include linux/config.h if AUTOCONF_INCLUDED is not + * set. This is defined through autoconf.h which is included through the + * linux kernel build macros. + * + * Revision 1.3 2005/04/29 05:10:22 mcr + * removed from extraenous includes to make unit testing easier. + * + * Revision 1.2 2005/04/15 00:32:01 mcr + * added ipsec_dmp_block routine. + * + * + * Local Variables: + * c-file-style: "linux" + * End: + * + */ + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ipsec_tunnel.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,2878 @@ +/* + * IPSEC Tunneling code. Heavily based on drivers/net/new_tunnel.c + * Copyright (C) 1996, 1997 John Ioannidis. + * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Richard Guy Briggs. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +char ipsec_tunnel_c_version[] = "RCSID $Id: ipsec_tunnel.c,v 1.232.2.5 2006/10/06 21:39:26 paul Exp $"; + +#define __NO_VERSION__ +#include +#ifndef AUTOCONF_INCLUDED +#include +#endif /* for CONFIG_IP_FORWARD */ +#include +#include /* printk() */ + +#include "openswan/ipsec_param.h" + +#ifdef MALLOC_SLAB +# include /* kmalloc() */ +#else /* MALLOC_SLAB */ +# include /* kmalloc() */ +#endif /* MALLOC_SLAB */ +#include /* error codes */ +#include /* size_t */ +#include /* mark_bh */ + +#include +#include +#include + +#include /* struct device, struct net_device_stats, dev_queue_xmit() and other headers */ +#include /* eth_type_trans */ +#include /* struct iphdr */ +#include + +#include + +#ifdef NET_21 +# include +# define ip_chk_addr inet_addr_type +# define IS_MYADDR RTN_LOCAL +# include +# undef dev_kfree_skb +# define dev_kfree_skb(a,b) kfree_skb(a) +# define PHYSDEV_TYPE +#endif /* NET_21 */ + +#include /* icmp_send() */ +#include +#ifdef NETDEV_23 +# include +#endif /* NETDEV_23 */ + +#include +#include + +#include "openswan/ipsec_kversion.h" +#include "openswan/radij.h" +#include "openswan/ipsec_life.h" +#include "openswan/ipsec_xform.h" +#include "openswan/ipsec_eroute.h" +#include "openswan/ipsec_encap.h" +#include "openswan/ipsec_radij.h" +#include "openswan/ipsec_sa.h" +#include "openswan/ipsec_tunnel.h" +#include "openswan/ipsec_xmit.h" +#include "openswan/ipsec_ipe4.h" +#include "openswan/ipsec_ah.h" +#include "openswan/ipsec_esp.h" +#include "openswan/ipsec_kern24.h" + +#include +#include + +#include "openswan/ipsec_proto.h" +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL +#include +#endif + +static __u32 zeroes[64]; + +#ifdef CONFIG_KLIPS_DEBUG +int debug_tunnel = 0; +#endif /* CONFIG_KLIPS_DEBUG */ + +DEBUG_NO_STATIC int +ipsec_tunnel_open(struct net_device *dev) +{ + struct ipsecpriv *prv = dev->priv; + + /* + * Can't open until attached. + */ + + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_tunnel_open: " + "dev = %s, prv->dev = %s\n", + dev->name, prv->dev?prv->dev->name:"NONE"); + + if (prv->dev == NULL) + return -ENODEV; + + KLIPS_INC_USE; + return 0; +} + +DEBUG_NO_STATIC int +ipsec_tunnel_close(struct net_device *dev) +{ + KLIPS_DEC_USE; + return 0; +} + +#ifdef NETDEV_23 +static inline int ipsec_tunnel_xmit2(struct sk_buff *skb) +{ +#ifdef NETDEV_25 /* 2.6 kernels */ + return dst_output(skb); +#else + return ip_send(skb); +#endif +} +#endif /* NETDEV_23 */ + +enum ipsec_xmit_value +ipsec_tunnel_strip_hard_header(struct ipsec_xmit_state *ixs) +{ + /* ixs->physdev->hard_header_len is unreliable and should not be used */ + ixs->hard_header_len = (unsigned char *)(ixs->iph) - ixs->skb->data; + + if(ixs->hard_header_len < 0) { + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_error:ipsec_xmit_strip_hard_header: " + "Negative hard_header_len (%d)?!\n", ixs->hard_header_len); + ixs->stats->tx_dropped++; + return IPSEC_XMIT_BADHHLEN; + } + + /* while ixs->physdev->hard_header_len is unreliable and + * should not be trusted, it accurate and required for ATM, GRE and + * some other interfaces to work. Thanks to Willy Tarreau + * . + */ + if(ixs->hard_header_len == 0) { /* no hard header present */ + ixs->hard_header_stripped = 1; + ixs->hard_header_len = ixs->physdev->hard_header_len; + } + +#ifdef CONFIG_KLIPS_DEBUG + if (debug_tunnel & DB_TN_XMIT) { + int i; + char c; + + printk(KERN_INFO "klips_debug:ipsec_xmit_strip_hard_header: " + ">>> skb->len=%ld hard_header_len:%d", + (unsigned long int)ixs->skb->len, ixs->hard_header_len); + c = ' '; + for (i=0; i < ixs->hard_header_len; i++) { + printk("%c%02x", c, ixs->skb->data[i]); + c = ':'; + } + printk(" \n"); + } +#endif /* CONFIG_KLIPS_DEBUG */ + + KLIPS_IP_PRINT(debug_tunnel & DB_TN_XMIT, ixs->iph); + + KLIPS_PRINT(debug_tunnel & DB_TN_CROUT, + "klips_debug:ipsec_xmit_strip_hard_header: " + "Original head,tailroom: %d,%d\n", + skb_headroom(ixs->skb), skb_tailroom(ixs->skb)); + + return IPSEC_XMIT_OK; +} + +enum ipsec_xmit_value +ipsec_tunnel_SAlookup(struct ipsec_xmit_state *ixs) +{ + unsigned int bypass; + + bypass = FALSE; + + /* + * First things first -- look us up in the erouting tables. + */ + ixs->matcher.sen_len = sizeof (struct sockaddr_encap); + ixs->matcher.sen_family = AF_ENCAP; + ixs->matcher.sen_type = SENT_IP4; + ixs->matcher.sen_ip_src.s_addr = ixs->iph->saddr; + ixs->matcher.sen_ip_dst.s_addr = ixs->iph->daddr; + ixs->matcher.sen_proto = ixs->iph->protocol; + ipsec_extract_ports(ixs->iph, &ixs->matcher); + + /* + * The spinlock is to prevent any other process from accessing or deleting + * the eroute while we are using and updating it. + */ + spin_lock(&eroute_lock); + + ixs->eroute = ipsec_findroute(&ixs->matcher); + + if(ixs->iph->protocol == IPPROTO_UDP) { + struct udphdr *t = NULL; + + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:udp port check: " + "fragoff: %d len: %d>%ld \n", + ntohs(ixs->iph->frag_off) & IP_OFFSET, + (ixs->skb->len - ixs->hard_header_len), + (unsigned long int) ((ixs->iph->ihl << 2) + sizeof(struct udphdr))); + + if((ntohs(ixs->iph->frag_off) & IP_OFFSET) == 0 && + ((ixs->skb->len - ixs->hard_header_len) >= + ((ixs->iph->ihl << 2) + sizeof(struct udphdr)))) + { + t =((struct udphdr*)((caddr_t)ixs->iph+(ixs->iph->ihl<<2))); + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:udp port in packet: " + "port %d -> %d\n", + ntohs(t->source), ntohs(t->dest)); + } + + ixs->sport=0; ixs->dport=0; + + if(ixs->skb->sk) { +#ifdef NET_26 + struct udp_sock *us; + + us = (struct udp_sock *)ixs->skb->sk; + + ixs->sport = ntohs(us->inet.sport); + ixs->dport = ntohs(us->inet.dport); +#else + ixs->sport = ntohs(ixs->skb->sk->sport); + ixs->dport = ntohs(ixs->skb->sk->dport); +#endif + + } + + if(t != NULL) { + if(ixs->sport == 0) { + ixs->sport = ntohs(t->source); + } + if(ixs->dport == 0) { + ixs->dport = ntohs(t->dest); + } + } + } + + /* + * practically identical to above, but let's be careful about + * tcp vs udp headers + */ + if(ixs->iph->protocol == IPPROTO_TCP) { + struct tcphdr *t = NULL; + + if((ntohs(ixs->iph->frag_off) & IP_OFFSET) == 0 && + ((ixs->skb->len - ixs->hard_header_len) >= + ((ixs->iph->ihl << 2) + sizeof(struct tcphdr)))) { + t =((struct tcphdr*)((caddr_t)ixs->iph+(ixs->iph->ihl<<2))); + } + + ixs->sport=0; ixs->dport=0; + + if(ixs->skb->sk) { +#ifdef NET_26 +#ifdef HAVE_INET_SK_SPORT + ixs->sport = ntohs(inet_sk(ixs->skb->sk)->sport); + ixs->dport = ntohs(inet_sk(ixs->skb->sk)->dport); +#else + struct tcp_tw_bucket *tw; + + tw = (struct tcp_tw_bucket *)ixs->skb->sk; + + ixs->sport = ntohs(tw->tw_sport); + ixs->dport = ntohs(tw->tw_dport); +#endif +#else + ixs->sport = ntohs(ixs->skb->sk->sport); + ixs->dport = ntohs(ixs->skb->sk->dport); +#endif + } + + if(t != NULL) { + if(ixs->sport == 0) { + ixs->sport = ntohs(t->source); + } + if(ixs->dport == 0) { + ixs->dport = ntohs(t->dest); + } + } + } + + /* default to a %drop eroute */ + ixs->outgoing_said.proto = IPPROTO_INT; + ixs->outgoing_said.spi = htonl(SPI_DROP); + ixs->outgoing_said.dst.u.v4.sin_addr.s_addr = INADDR_ANY; + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_SAlookup: " + "checking for local udp/500 IKE packet " + "saddr=%x, er=0p%p, daddr=%x, er_dst=%x, proto=%d sport=%d dport=%d\n", + ntohl((unsigned int)ixs->iph->saddr), + ixs->eroute, + ntohl((unsigned int)ixs->iph->daddr), + ixs->eroute ? ntohl((unsigned int)ixs->eroute->er_said.dst.u.v4.sin_addr.s_addr) : 0, + ixs->iph->protocol, + ixs->sport, + ixs->dport); + + /* + * cheat for now...are we udp/500? If so, let it through + * without interference since it is most likely an IKE packet. + */ + + if (ip_chk_addr((unsigned long)ixs->iph->saddr) == IS_MYADDR + && (ixs->eroute==NULL + || ixs->iph->daddr == ixs->eroute->er_said.dst.u.v4.sin_addr.s_addr + || INADDR_ANY == ixs->eroute->er_said.dst.u.v4.sin_addr.s_addr) + && (ixs->iph->protocol == IPPROTO_UDP && + (ixs->sport == 500 || ixs->sport == 4500))) { + /* Whatever the eroute, this is an IKE message + * from us (i.e. not being forwarded). + * Furthermore, if there is a tunnel eroute, + * the destination is the peer for this eroute. + * So %pass the packet: modify the default %drop. + */ + + ixs->outgoing_said.spi = htonl(SPI_PASS); + if(!(ixs->skb->sk) && ((ntohs(ixs->iph->frag_off) & IP_MF) != 0)) { + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_SAlookup: " + "local UDP/500 (probably IKE) passthrough: base fragment, rest of fragments will probably get filtered.\n"); + } + bypass = TRUE; + } + +#ifdef KLIPS_EXCEPT_DNS53 + /* + * + * if we are udp/53 or tcp/53, also let it through a %trap or %hold, + * since it is DNS, but *also* follow the %trap. + * + * we do not do this for tunnels, only %trap's and %hold's. + * + */ + + if (ip_chk_addr((unsigned long)ixs->iph->saddr) == IS_MYADDR + && (ixs->eroute==NULL + || ixs->iph->daddr == ixs->eroute->er_said.dst.u.v4.sin_addr.s_addr + || INADDR_ANY == ixs->eroute->er_said.dst.u.v4.sin_addr.s_addr) + && ((ixs->iph->protocol == IPPROTO_UDP + || ixs->iph->protocol == IPPROTO_TCP) + && ixs->dport == 53)) { + + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_SAlookup: " + "possible DNS packet\n"); + + if(ixs->eroute) + { + if(ixs->eroute->er_said.spi == htonl(SPI_TRAP) + || ixs->eroute->er_said.spi == htonl(SPI_HOLD)) + { + ixs->outgoing_said.spi = htonl(SPI_PASSTRAP); + bypass = TRUE; + } + } + else + { + ixs->outgoing_said.spi = htonl(SPI_PASSTRAP); + bypass = TRUE; + } + + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_SAlookup: " + "bypass = %d\n", bypass); + + if(bypass + && !(ixs->skb->sk) + && ((ntohs(ixs->iph->frag_off) & IP_MF) != 0)) + { + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_SAlookup: " + "local port 53 (probably DNS) passthrough:" + "base fragment, rest of fragments will " + "probably get filtered.\n"); + } + } +#endif + + if (bypass==FALSE && ixs->eroute) { + ixs->eroute->er_count++; + ixs->eroute->er_lasttime = jiffies/HZ; + if(ixs->eroute->er_said.proto==IPPROTO_INT + && ixs->eroute->er_said.spi==htonl(SPI_HOLD)) + { + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_SAlookup: " + "shunt SA of HOLD: skb stored in HOLD.\n"); + if(ixs->eroute->er_last != NULL) { + kfree_skb(ixs->eroute->er_last); + } + ixs->eroute->er_last = ixs->skb; + ixs->skb = NULL; + ixs->stats->tx_dropped++; + spin_unlock(&eroute_lock); + return IPSEC_XMIT_STOLEN; + } + ixs->outgoing_said = ixs->eroute->er_said; + ixs->eroute_pid = ixs->eroute->er_pid; + + /* Copy of the ident for the TRAP/TRAPSUBNET eroutes */ + if(ixs->outgoing_said.proto==IPPROTO_INT + && (ixs->outgoing_said.spi==htonl(SPI_TRAP) + || (ixs->outgoing_said.spi==htonl(SPI_TRAPSUBNET)))) { + int len; + + ixs->ips.ips_ident_s.type = ixs->eroute->er_ident_s.type; + ixs->ips.ips_ident_s.id = ixs->eroute->er_ident_s.id; + ixs->ips.ips_ident_s.len = ixs->eroute->er_ident_s.len; + if (ixs->ips.ips_ident_s.len) + { + len = ixs->ips.ips_ident_s.len * IPSEC_PFKEYv2_ALIGN - sizeof(struct sadb_ident); + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_SAlookup: " + "allocating %d bytes for ident_s shunt SA of HOLD: skb stored in HOLD.\n", + len); + if ((ixs->ips.ips_ident_s.data = kmalloc(len, GFP_ATOMIC)) == NULL) { + printk(KERN_WARNING "klips_debug:ipsec_xmit_SAlookup: " + "Failed, tried to allocate %d bytes for source ident.\n", + len); + ixs->stats->tx_dropped++; + spin_unlock(&eroute_lock); + return IPSEC_XMIT_ERRMEMALLOC; + } + memcpy(ixs->ips.ips_ident_s.data, ixs->eroute->er_ident_s.data, len); + } + ixs->ips.ips_ident_d.type = ixs->eroute->er_ident_d.type; + ixs->ips.ips_ident_d.id = ixs->eroute->er_ident_d.id; + ixs->ips.ips_ident_d.len = ixs->eroute->er_ident_d.len; + if (ixs->ips.ips_ident_d.len) + { + len = ixs->ips.ips_ident_d.len * IPSEC_PFKEYv2_ALIGN - sizeof(struct sadb_ident); + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_SAlookup: " + "allocating %d bytes for ident_d shunt SA of HOLD: skb stored in HOLD.\n", + len); + if ((ixs->ips.ips_ident_d.data = kmalloc(len, GFP_ATOMIC)) == NULL) { + printk(KERN_WARNING "klips_debug:ipsec_xmit_SAlookup: " + "Failed, tried to allocate %d bytes for dest ident.\n", + len); + ixs->stats->tx_dropped++; + spin_unlock(&eroute_lock); + return IPSEC_XMIT_ERRMEMALLOC; + } + memcpy(ixs->ips.ips_ident_d.data, ixs->eroute->er_ident_d.data, len); + } + } + } + + spin_unlock(&eroute_lock); + return IPSEC_XMIT_OK; +} + + +enum ipsec_xmit_value +ipsec_tunnel_restore_hard_header(struct ipsec_xmit_state*ixs) +{ + KLIPS_PRINT(debug_tunnel & DB_TN_CROUT, + "klips_debug:ipsec_xmit_restore_hard_header: " + "After recursive xforms -- head,tailroom: %d,%d\n", + skb_headroom(ixs->skb), + skb_tailroom(ixs->skb)); + + if(ixs->saved_header) { + if(skb_headroom(ixs->skb) < ixs->hard_header_len) { + printk(KERN_WARNING + "klips_error:ipsec_xmit_restore_hard_header: " + "tried to skb_push hhlen=%d, %d available. This should never happen, please report.\n", + ixs->hard_header_len, + skb_headroom(ixs->skb)); + ixs->stats->tx_errors++; + return IPSEC_XMIT_PUSHPULLERR; + + } + skb_push(ixs->skb, ixs->hard_header_len); + { + int i; + for (i = 0; i < ixs->hard_header_len; i++) { + ixs->skb->data[i] = ixs->saved_header[i]; + } + } + } +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL + if (ixs->natt_type && ixs->natt_head) { + struct iphdr *ipp = ixs->skb->nh.iph; + struct udphdr *udp; + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_tunnel_start_xmit: " + "encapsuling packet into UDP (NAT-Traversal) (%d %d)\n", + ixs->natt_type, ixs->natt_head); + + ixs->iphlen = ipp->ihl << 2; + ipp->tot_len = + htons(ntohs(ipp->tot_len) + ixs->natt_head); + if(skb_tailroom(ixs->skb) < ixs->natt_head) { + printk(KERN_WARNING "klips_error:ipsec_tunnel_start_xmit: " + "tried to skb_put %d, %d available. " + "This should never happen, please report.\n", + ixs->natt_head, + skb_tailroom(ixs->skb)); + ixs->stats->tx_errors++; + return IPSEC_XMIT_ESPUDP; + } + skb_put(ixs->skb, ixs->natt_head); + + udp = (struct udphdr *)((char *)ipp + ixs->iphlen); + + /* move ESP hdr after UDP hdr */ + memmove((void *)((char *)udp + ixs->natt_head), + (void *)(udp), + ntohs(ipp->tot_len) - ixs->iphlen - ixs->natt_head); + + /* clear UDP & Non-IKE Markers (if any) */ + memset(udp, 0, ixs->natt_head); + + /* fill UDP with usefull informations ;-) */ + udp->source = htons(ixs->natt_sport); + udp->dest = htons(ixs->natt_dport); + udp->len = htons(ntohs(ipp->tot_len) - ixs->iphlen); + + /* set protocol */ + ipp->protocol = IPPROTO_UDP; + + /* fix IP checksum */ + ipp->check = 0; + ipp->check = ip_fast_csum((unsigned char *)ipp, ipp->ihl); + } +#endif + KLIPS_PRINT(debug_tunnel & DB_TN_CROUT, + "klips_debug:ipsec_xmit_restore_hard_header: " + "With hard_header, final head,tailroom: %d,%d\n", + skb_headroom(ixs->skb), + skb_tailroom(ixs->skb)); + + return IPSEC_XMIT_OK; +} + +enum ipsec_xmit_value +ipsec_tunnel_send(struct ipsec_xmit_state*ixs) +{ +#ifdef NETDEV_25 + struct flowi fl; +#endif + +#ifdef NET_21 /* 2.2 and 2.4 kernels */ + /* new route/dst cache code from James Morris */ + ixs->skb->dev = ixs->physdev; +#ifdef NETDEV_25 + memset (&fl, 0x0, sizeof (struct flowi)); + fl.oif = ixs->physdev->iflink; + fl.nl_u.ip4_u.daddr = ixs->skb->nh.iph->daddr; + fl.nl_u.ip4_u.saddr = ixs->pass ? 0 : ixs->skb->nh.iph->saddr; + fl.nl_u.ip4_u.tos = RT_TOS(ixs->skb->nh.iph->tos); + fl.proto = ixs->skb->nh.iph->protocol; + if ((ixs->error = ip_route_output_key(&ixs->route, &fl))) { +#else + /*skb_orphan(ixs->skb);*/ + if((ixs->error = ip_route_output(&ixs->route, + ixs->skb->nh.iph->daddr, + ixs->pass ? 0 : ixs->skb->nh.iph->saddr, + RT_TOS(ixs->skb->nh.iph->tos), + /* mcr->rgb: should this be 0 instead? */ + ixs->physdev->iflink))) { +#endif + ixs->stats->tx_errors++; + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_send: " + "ip_route_output failed with error code %d, rt->u.dst.dev=%s, dropped\n", + ixs->error, + ixs->route->u.dst.dev->name); + return IPSEC_XMIT_ROUTEERR; + } + if(ixs->dev == ixs->route->u.dst.dev) { + ip_rt_put(ixs->route); + /* This is recursion, drop it. */ + ixs->stats->tx_errors++; + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_send: " + "suspect recursion, dev=rt->u.dst.dev=%s, dropped\n", + ixs->dev->name); + return IPSEC_XMIT_RECURSDETECT; + } + dst_release(ixs->skb->dst); + ixs->skb->dst = &ixs->route->u.dst; + ixs->stats->tx_bytes += ixs->skb->len; + if(ixs->skb->len < ixs->skb->nh.raw - ixs->skb->data) { + ixs->stats->tx_errors++; + printk(KERN_WARNING + "klips_error:ipsec_xmit_send: " + "tried to __skb_pull nh-data=%ld, %d available. This should never happen, please report.\n", + (unsigned long)(ixs->skb->nh.raw - ixs->skb->data), + ixs->skb->len); + return IPSEC_XMIT_PUSHPULLERR; + } + __skb_pull(ixs->skb, ixs->skb->nh.raw - ixs->skb->data); +#ifdef SKB_RESET_NFCT + if(!ixs->pass) { + nf_conntrack_put(ixs->skb->nfct); + ixs->skb->nfct = NULL; + } +#if defined(CONFIG_NETFILTER_DEBUG) && defined(HAVE_SKB_NF_DEBUG) + ixs->skb->nf_debug = 0; +#endif /* CONFIG_NETFILTER_DEBUG */ +#endif /* SKB_RESET_NFCT */ + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_send: " + "...done, calling ip_send() on device:%s\n", + ixs->skb->dev ? ixs->skb->dev->name : "NULL"); + KLIPS_IP_PRINT(debug_tunnel & DB_TN_XMIT, ixs->skb->nh.iph); +#ifdef NETDEV_23 /* 2.4 kernels */ + { + int err; + + err = NF_HOOK(PF_INET, NF_IP_LOCAL_OUT, ixs->skb, NULL, ixs->route->u.dst.dev, + ipsec_tunnel_xmit2); + if(err != NET_XMIT_SUCCESS && err != NET_XMIT_CN) { + if(net_ratelimit()) + printk(KERN_ERR + "klips_error:ipsec_xmit_send: " + "ip_send() failed, err=%d\n", + -err); + ixs->stats->tx_errors++; + ixs->stats->tx_aborted_errors++; + ixs->skb = NULL; + return IPSEC_XMIT_IPSENDFAILURE; + } + } +#else /* NETDEV_23 */ /* 2.2 kernels */ + ip_send(ixs->skb); +#endif /* NETDEV_23 */ +#else /* NET_21 */ /* 2.0 kernels */ + ixs->skb->arp = 1; + /* ISDN/ASYNC PPP from Matjaz Godec. */ + /* skb->protocol = htons(ETH_P_IP); */ + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_send: " + "...done, calling dev_queue_xmit() or ip_fragment().\n"); + IP_SEND(ixs->skb, ixs->physdev); +#endif /* NET_21 */ + ixs->stats->tx_packets++; + + ixs->skb = NULL; + + return IPSEC_XMIT_OK; +} + +void +ipsec_tunnel_cleanup(struct ipsec_xmit_state*ixs) +{ +#if defined(HAS_NETIF_QUEUE) || defined (HAVE_NETIF_QUEUE) + netif_wake_queue(ixs->dev); +#else /* defined(HAS_NETIF_QUEUE) || defined (HAVE_NETIF_QUEUE) */ + ixs->dev->tbusy = 0; +#endif /* defined(HAS_NETIF_QUEUE) || defined (HAVE_NETIF_QUEUE) */ + if(ixs->saved_header) { + kfree(ixs->saved_header); + } + if(ixs->skb) { + dev_kfree_skb(ixs->skb, FREE_WRITE); + } + if(ixs->oskb) { + dev_kfree_skb(ixs->oskb, FREE_WRITE); + } + if (ixs->ips.ips_ident_s.data) { + kfree(ixs->ips.ips_ident_s.data); + } + if (ixs->ips.ips_ident_d.data) { + kfree(ixs->ips.ips_ident_d.data); + } +} + +/* + * This function assumes it is being called from dev_queue_xmit() + * and that skb is filled properly by that function. + */ +int +ipsec_tunnel_start_xmit(struct sk_buff *skb, struct net_device *dev) +{ + struct ipsec_xmit_state ixs_mem; + struct ipsec_xmit_state *ixs = &ixs_mem; + enum ipsec_xmit_value stat; + +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL + ixs->natt_type = 0, ixs->natt_head = 0; + ixs->natt_sport = 0, ixs->natt_dport = 0; +#endif + + memset((caddr_t)ixs, 0, sizeof(*ixs)); + ixs->oskb = NULL; + ixs->saved_header = NULL; /* saved copy of the hard header */ + ixs->route = NULL; + memset((caddr_t)&(ixs->ips), 0, sizeof(ixs->ips)); + ixs->dev = dev; + ixs->skb = skb; + + stat = ipsec_xmit_sanity_check_dev(ixs); + if(stat != IPSEC_XMIT_OK) { + goto cleanup; + } + + stat = ipsec_xmit_sanity_check_skb(ixs); + if(stat != IPSEC_XMIT_OK) { + goto cleanup; + } + + stat = ipsec_tunnel_strip_hard_header(ixs); + if(stat != IPSEC_XMIT_OK) { + goto cleanup; + } + + stat = ipsec_tunnel_SAlookup(ixs); + if(stat != IPSEC_XMIT_OK) { + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_tunnel_start_xmit: SAlookup failed: %d\n", + stat); + goto cleanup; + } + + ixs->innersrc = ixs->iph->saddr; + /* start encapsulation loop here XXX */ + do { + stat = ipsec_xmit_encap_bundle(ixs); + if(stat != IPSEC_XMIT_OK) { + if(stat == IPSEC_XMIT_PASS) { + goto bypass; + } + + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_tunnel_start_xmit: encap_bundle failed: %d\n", + stat); + goto cleanup; + } + + ixs->matcher.sen_ip_src.s_addr = ixs->iph->saddr; + ixs->matcher.sen_ip_dst.s_addr = ixs->iph->daddr; + ixs->matcher.sen_proto = ixs->iph->protocol; + ipsec_extract_ports(ixs->iph, &ixs->matcher); + + spin_lock(&eroute_lock); + ixs->eroute = ipsec_findroute(&ixs->matcher); + if(ixs->eroute) { + ixs->outgoing_said = ixs->eroute->er_said; + ixs->eroute_pid = ixs->eroute->er_pid; + ixs->eroute->er_count++; + ixs->eroute->er_lasttime = jiffies/HZ; + } + spin_unlock(&eroute_lock); + + KLIPS_PRINT((debug_tunnel & DB_TN_XMIT) && + /* ((ixs->orgdst != ixs->newdst) || (ixs->orgsrc != ixs->newsrc)) */ + (ixs->orgedst != ixs->outgoing_said.dst.u.v4.sin_addr.s_addr) && + ixs->outgoing_said.dst.u.v4.sin_addr.s_addr && + ixs->eroute, + "klips_debug:ipsec_tunnel_start_xmit: " + "We are recursing here.\n"); + + } while(/*((ixs->orgdst != ixs->newdst) || (ixs->orgsrc != ixs->newsrc))*/ + (ixs->orgedst != ixs->outgoing_said.dst.u.v4.sin_addr.s_addr) && + ixs->outgoing_said.dst.u.v4.sin_addr.s_addr && + ixs->eroute); + + stat = ipsec_tunnel_restore_hard_header(ixs); + if(stat != IPSEC_XMIT_OK) { + goto cleanup; + } + + bypass: + stat = ipsec_tunnel_send(ixs); + + cleanup: + ipsec_tunnel_cleanup(ixs); + + return 0; +} + +DEBUG_NO_STATIC struct net_device_stats * +ipsec_tunnel_get_stats(struct net_device *dev) +{ + return &(((struct ipsecpriv *)(dev->priv))->mystats); +} + +/* + * Revectored calls. + * For each of these calls, a field exists in our private structure. + */ + +DEBUG_NO_STATIC int +ipsec_tunnel_hard_header(struct sk_buff *skb, struct net_device *dev, + unsigned short type, void *daddr, void *saddr, unsigned len) +{ + struct ipsecpriv *prv = dev->priv; + struct net_device *tmp; + int ret; + struct net_device_stats *stats; /* This device's statistics */ + + if(skb == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_hard_header: " + "no skb...\n"); + return -ENODATA; + } + + if(dev == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_hard_header: " + "no device...\n"); + return -ENODEV; + } + + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_hard_header: " + "skb->dev=%s dev=%s.\n", + skb->dev ? skb->dev->name : "NULL", + dev->name); + + if(prv == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_hard_header: " + "no private space associated with dev=%s\n", + dev->name ? dev->name : "NULL"); + return -ENODEV; + } + + stats = (struct net_device_stats *) &(prv->mystats); + + if(prv->dev == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_hard_header: " + "no physical device associated with dev=%s\n", + dev->name ? dev->name : "NULL"); + stats->tx_dropped++; + return -ENODEV; + } + + /* check if we have to send a IPv6 packet. It might be a Router + Solicitation, where the building of the packet happens in + reverse order: + 1. ll hdr, + 2. IPv6 hdr, + 3. ICMPv6 hdr + -> skb->nh.raw is still uninitialized when this function is + called!! If this is no IPv6 packet, we can print debugging + messages, otherwise we skip all debugging messages and just + build the ll header */ + if(type != ETH_P_IPV6) { + /* execute this only, if we don't have to build the + header for a IPv6 packet */ + if(!prv->hard_header) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_hard_header: " + "physical device has been detached, packet dropped 0p%p->0p%p len=%d type=%d dev=%s->NULL ", + saddr, + daddr, + len, + type, + dev->name); +#ifdef NET_21 + KLIPS_PRINTMORE(debug_tunnel & DB_TN_REVEC, + "ip=%08x->%08x\n", + (__u32)ntohl(skb->nh.iph->saddr), + (__u32)ntohl(skb->nh.iph->daddr) ); +#else /* NET_21 */ + KLIPS_PRINTMORE(debug_tunnel & DB_TN_REVEC, + "ip=%08x->%08x\n", + (__u32)ntohl(skb->ip_hdr->saddr), + (__u32)ntohl(skb->ip_hdr->daddr) ); +#endif /* NET_21 */ + stats->tx_dropped++; + return -ENODEV; + } + +#define da ((struct net_device *)(prv->dev))->dev_addr + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_hard_header: " + "Revectored 0p%p->0p%p len=%d type=%d dev=%s->%s dev_addr=%02x:%02x:%02x:%02x:%02x:%02x ", + saddr, + daddr, + len, + type, + dev->name, + prv->dev->name, + da[0], da[1], da[2], da[3], da[4], da[5]); +#ifdef NET_21 + KLIPS_PRINTMORE(debug_tunnel & DB_TN_REVEC, + "ip=%08x->%08x\n", + (__u32)ntohl(skb->nh.iph->saddr), + (__u32)ntohl(skb->nh.iph->daddr) ); +#else /* NET_21 */ + KLIPS_PRINTMORE(debug_tunnel & DB_TN_REVEC, + "ip=%08x->%08x\n", + (__u32)ntohl(skb->ip_hdr->saddr), + (__u32)ntohl(skb->ip_hdr->daddr) ); +#endif /* NET_21 */ + } else { + KLIPS_PRINT(debug_tunnel, + "klips_debug:ipsec_tunnel_hard_header: " + "is IPv6 packet, skip debugging messages, only revector and build linklocal header.\n"); + } + tmp = skb->dev; + skb->dev = prv->dev; + ret = prv->hard_header(skb, prv->dev, type, (void *)daddr, (void *)saddr, len); + skb->dev = tmp; + return ret; +} + +DEBUG_NO_STATIC int +#ifdef NET_21 +ipsec_tunnel_rebuild_header(struct sk_buff *skb) +#else /* NET_21 */ +ipsec_tunnel_rebuild_header(void *buff, struct net_device *dev, + unsigned long raddr, struct sk_buff *skb) +#endif /* NET_21 */ +{ + struct ipsecpriv *prv = skb->dev->priv; + struct net_device *tmp; + int ret; + struct net_device_stats *stats; /* This device's statistics */ + + if(skb->dev == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_rebuild_header: " + "no device..."); + return -ENODEV; + } + + if(prv == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_rebuild_header: " + "no private space associated with dev=%s", + skb->dev->name ? skb->dev->name : "NULL"); + return -ENODEV; + } + + stats = (struct net_device_stats *) &(prv->mystats); + + if(prv->dev == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_rebuild_header: " + "no physical device associated with dev=%s", + skb->dev->name ? skb->dev->name : "NULL"); + stats->tx_dropped++; + return -ENODEV; + } + + if(!prv->rebuild_header) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_rebuild_header: " + "physical device has been detached, packet dropped skb->dev=%s->NULL ", + skb->dev->name); +#ifdef NET_21 + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "ip=%08x->%08x\n", + (__u32)ntohl(skb->nh.iph->saddr), + (__u32)ntohl(skb->nh.iph->daddr) ); +#else /* NET_21 */ + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "ip=%08x->%08x\n", + (__u32)ntohl(skb->ip_hdr->saddr), + (__u32)ntohl(skb->ip_hdr->daddr) ); +#endif /* NET_21 */ + stats->tx_dropped++; + return -ENODEV; + } + + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel: " + "Revectored rebuild_header dev=%s->%s ", + skb->dev->name, prv->dev->name); +#ifdef NET_21 + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "ip=%08x->%08x\n", + (__u32)ntohl(skb->nh.iph->saddr), + (__u32)ntohl(skb->nh.iph->daddr) ); +#else /* NET_21 */ + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "ip=%08x->%08x\n", + (__u32)ntohl(skb->ip_hdr->saddr), + (__u32)ntohl(skb->ip_hdr->daddr) ); +#endif /* NET_21 */ + tmp = skb->dev; + skb->dev = prv->dev; + +#ifdef NET_21 + ret = prv->rebuild_header(skb); +#else /* NET_21 */ + ret = prv->rebuild_header(buff, prv->dev, raddr, skb); +#endif /* NET_21 */ + skb->dev = tmp; + return ret; +} + +DEBUG_NO_STATIC int +ipsec_tunnel_set_mac_address(struct net_device *dev, void *addr) +{ + struct ipsecpriv *prv = dev->priv; + + struct net_device_stats *stats; /* This device's statistics */ + + if(dev == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_set_mac_address: " + "no device..."); + return -ENODEV; + } + + if(prv == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_set_mac_address: " + "no private space associated with dev=%s", + dev->name ? dev->name : "NULL"); + return -ENODEV; + } + + stats = (struct net_device_stats *) &(prv->mystats); + + if(prv->dev == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_set_mac_address: " + "no physical device associated with dev=%s", + dev->name ? dev->name : "NULL"); + stats->tx_dropped++; + return -ENODEV; + } + + if(!prv->set_mac_address) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_set_mac_address: " + "physical device has been detached, cannot set - skb->dev=%s->NULL\n", + dev->name); + return -ENODEV; + } + + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_set_mac_address: " + "Revectored dev=%s->%s addr=0p%p\n", + dev->name, prv->dev->name, addr); + return prv->set_mac_address(prv->dev, addr); + +} + +#ifndef NET_21 +DEBUG_NO_STATIC void +ipsec_tunnel_cache_bind(struct hh_cache **hhp, struct net_device *dev, + unsigned short htype, __u32 daddr) +{ + struct ipsecpriv *prv = dev->priv; + + struct net_device_stats *stats; /* This device's statistics */ + + if(dev == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_cache_bind: " + "no device..."); + return; + } + + if(prv == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_cache_bind: " + "no private space associated with dev=%s", + dev->name ? dev->name : "NULL"); + return; + } + + stats = (struct net_device_stats *) &(prv->mystats); + + if(prv->dev == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_cache_bind: " + "no physical device associated with dev=%s", + dev->name ? dev->name : "NULL"); + stats->tx_dropped++; + return; + } + + if(!prv->header_cache_bind) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_cache_bind: " + "physical device has been detached, cannot set - skb->dev=%s->NULL\n", + dev->name); + stats->tx_dropped++; + return; + } + + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_cache_bind: " + "Revectored \n"); + prv->header_cache_bind(hhp, prv->dev, htype, daddr); + return; +} +#endif /* !NET_21 */ + + +DEBUG_NO_STATIC void +ipsec_tunnel_cache_update(struct hh_cache *hh, struct net_device *dev, unsigned char * haddr) +{ + struct ipsecpriv *prv = dev->priv; + + struct net_device_stats *stats; /* This device's statistics */ + + if(dev == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_cache_update: " + "no device..."); + return; + } + + if(prv == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_cache_update: " + "no private space associated with dev=%s", + dev->name ? dev->name : "NULL"); + return; + } + + stats = (struct net_device_stats *) &(prv->mystats); + + if(prv->dev == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_cache_update: " + "no physical device associated with dev=%s", + dev->name ? dev->name : "NULL"); + stats->tx_dropped++; + return; + } + + if(!prv->header_cache_update) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_cache_update: " + "physical device has been detached, cannot set - skb->dev=%s->NULL\n", + dev->name); + return; + } + + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel: " + "Revectored cache_update\n"); + prv->header_cache_update(hh, prv->dev, haddr); + return; +} + +#ifdef NET_21 +DEBUG_NO_STATIC int +ipsec_tunnel_neigh_setup(struct neighbour *n) +{ + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_neigh_setup:\n"); + + if (n->nud_state == NUD_NONE) { + n->ops = &arp_broken_ops; + n->output = n->ops->output; + } + return 0; +} + +DEBUG_NO_STATIC int +ipsec_tunnel_neigh_setup_dev(struct net_device *dev, struct neigh_parms *p) +{ + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_neigh_setup_dev: " + "setting up %s\n", + dev ? dev->name : "NULL"); + + if (p->tbl->family == AF_INET) { + p->neigh_setup = ipsec_tunnel_neigh_setup; + p->ucast_probes = 0; + p->mcast_probes = 0; + } + return 0; +} +#endif /* NET_21 */ + +/* + * We call the attach routine to attach another device. + */ + +DEBUG_NO_STATIC int +ipsec_tunnel_attach(struct net_device *dev, struct net_device *physdev) +{ + int i; + struct ipsecpriv *prv = dev->priv; + + if(dev == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_attach: " + "no device..."); + return -ENODEV; + } + + if(prv == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_attach: " + "no private space associated with dev=%s", + dev->name ? dev->name : "NULL"); + return -ENODATA; + } + + prv->dev = physdev; + prv->hard_start_xmit = physdev->hard_start_xmit; + prv->get_stats = physdev->get_stats; + + if (physdev->hard_header) { + prv->hard_header = physdev->hard_header; + dev->hard_header = ipsec_tunnel_hard_header; + } else + dev->hard_header = NULL; + + if (physdev->rebuild_header) { + prv->rebuild_header = physdev->rebuild_header; + dev->rebuild_header = ipsec_tunnel_rebuild_header; + } else + dev->rebuild_header = NULL; + + if (physdev->set_mac_address) { + prv->set_mac_address = physdev->set_mac_address; + dev->set_mac_address = ipsec_tunnel_set_mac_address; + } else + dev->set_mac_address = NULL; + +#ifndef NET_21 + if (physdev->header_cache_bind) { + prv->header_cache_bind = physdev->header_cache_bind; + dev->header_cache_bind = ipsec_tunnel_cache_bind; + } else + dev->header_cache_bind = NULL; +#endif /* !NET_21 */ + + if (physdev->header_cache_update) { + prv->header_cache_update = physdev->header_cache_update; + dev->header_cache_update = ipsec_tunnel_cache_update; + } else + dev->header_cache_update = NULL; + + dev->hard_header_len = physdev->hard_header_len; + +#ifdef NET_21 +/* prv->neigh_setup = physdev->neigh_setup; */ + dev->neigh_setup = ipsec_tunnel_neigh_setup_dev; +#endif /* NET_21 */ + dev->mtu = 16260; /* 0xfff0; */ /* dev->mtu; */ + prv->mtu = physdev->mtu; + +#ifdef PHYSDEV_TYPE + dev->type = physdev->type; /* ARPHRD_TUNNEL; */ +#endif /* PHYSDEV_TYPE */ + + dev->addr_len = physdev->addr_len; + for (i=0; iaddr_len; i++) { + dev->dev_addr[i] = physdev->dev_addr[i]; + } +#ifdef CONFIG_KLIPS_DEBUG + if(debug_tunnel & DB_TN_INIT) { + printk(KERN_INFO "klips_debug:ipsec_tunnel_attach: " + "physical device %s being attached has HW address: %2x", + physdev->name, physdev->dev_addr[0]); + for (i=1; i < physdev->addr_len; i++) { + printk(":%02x", physdev->dev_addr[i]); + } + printk("\n"); + } +#endif /* CONFIG_KLIPS_DEBUG */ + + return 0; +} + +/* + * We call the detach routine to detach the ipsec tunnel from another device. + */ + +DEBUG_NO_STATIC int +ipsec_tunnel_detach(struct net_device *dev) +{ + int i; + struct ipsecpriv *prv = dev->priv; + + if(dev == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_detach: " + "no device..."); + return -ENODEV; + } + + if(prv == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_REVEC, + "klips_debug:ipsec_tunnel_detach: " + "no private space associated with dev=%s", + dev->name ? dev->name : "NULL"); + return -ENODATA; + } + + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_tunnel_detach: " + "physical device %s being detached from virtual device %s\n", + prv->dev ? prv->dev->name : "NULL", + dev->name); + + ipsec_dev_put(prv->dev); + prv->dev = NULL; + prv->hard_start_xmit = NULL; + prv->get_stats = NULL; + + prv->hard_header = NULL; +#ifdef DETACH_AND_DOWN + dev->hard_header = NULL; +#endif /* DETACH_AND_DOWN */ + + prv->rebuild_header = NULL; +#ifdef DETACH_AND_DOWN + dev->rebuild_header = NULL; +#endif /* DETACH_AND_DOWN */ + + prv->set_mac_address = NULL; +#ifdef DETACH_AND_DOWN + dev->set_mac_address = NULL; +#endif /* DETACH_AND_DOWN */ + +#ifndef NET_21 + prv->header_cache_bind = NULL; +#ifdef DETACH_AND_DOWN + dev->header_cache_bind = NULL; +#endif /* DETACH_AND_DOWN */ +#endif /* !NET_21 */ + + prv->header_cache_update = NULL; +#ifdef DETACH_AND_DOWN + dev->header_cache_update = NULL; +#endif /* DETACH_AND_DOWN */ + +#ifdef NET_21 +/* prv->neigh_setup = NULL; */ +#ifdef DETACH_AND_DOWN + dev->neigh_setup = NULL; +#endif /* DETACH_AND_DOWN */ +#endif /* NET_21 */ + dev->hard_header_len = 0; +#ifdef DETACH_AND_DOWN + dev->mtu = 0; +#endif /* DETACH_AND_DOWN */ + prv->mtu = 0; + for (i=0; idev_addr[i] = 0; + } + dev->addr_len = 0; +#ifdef PHYSDEV_TYPE + dev->type = ARPHRD_VOID; /* ARPHRD_TUNNEL; */ +#endif /* PHYSDEV_TYPE */ + + return 0; +} + +/* + * We call the clear routine to detach all ipsec tunnels from other devices. + */ +DEBUG_NO_STATIC int +ipsec_tunnel_clear(void) +{ + int i; + struct net_device *ipsecdev = NULL, *prvdev; + struct ipsecpriv *prv; + int ret; + + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_tunnel_clear: .\n"); + + for(i = 0; i < IPSEC_NUM_IF; i++) { + ipsecdev = ipsecdevices[i]; + if(ipsecdev != NULL) { + if((prv = (struct ipsecpriv *)(ipsecdev->priv))) { + prvdev = (struct net_device *)(prv->dev); + if(prvdev) { + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_tunnel_clear: " + "physical device for device %s is %s\n", + ipsecdev->name, prvdev->name); + if((ret = ipsec_tunnel_detach(ipsecdev))) { + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_tunnel_clear: " + "error %d detatching device %s from device %s.\n", + ret, ipsecdev->name, prvdev->name); + return ret; + } + } + } + } + } + return 0; +} + +DEBUG_NO_STATIC int +ipsec_tunnel_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +{ + struct ipsectunnelconf *cf = (struct ipsectunnelconf *)&ifr->ifr_data; + struct ipsecpriv *prv = dev->priv; + struct net_device *them; /* physical device */ +#ifdef CONFIG_IP_ALIAS + char *colon; + char realphysname[IFNAMSIZ]; +#endif /* CONFIG_IP_ALIAS */ + + if(dev == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_tunnel_ioctl: " + "device not supplied.\n"); + return -ENODEV; + } + + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_tunnel_ioctl: " + "tncfg service call #%d for dev=%s\n", + cmd, + dev->name ? dev->name : "NULL"); + switch (cmd) { + /* attach a virtual ipsec? device to a physical device */ + case IPSEC_SET_DEV: + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_tunnel_ioctl: " + "calling ipsec_tunnel_attatch...\n"); +#ifdef CONFIG_IP_ALIAS + /* If this is an IP alias interface, get its real physical name */ + strncpy(realphysname, cf->cf_name, IFNAMSIZ); + realphysname[IFNAMSIZ-1] = 0; + colon = strchr(realphysname, ':'); + if (colon) *colon = 0; + them = ipsec_dev_get(realphysname); +#else /* CONFIG_IP_ALIAS */ + them = ipsec_dev_get(cf->cf_name); +#endif /* CONFIG_IP_ALIAS */ + + if (them == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_tunnel_ioctl: " + "physical device %s requested is null\n", + cf->cf_name); + return -ENXIO; + } + +#if 0 + if (them->flags & IFF_UP) { + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_tunnel_ioctl: " + "physical device %s requested is not up.\n", + cf->cf_name); + ipsec_dev_put(them); + return -ENXIO; + } +#endif + + if (prv && prv->dev) { + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_tunnel_ioctl: " + "virtual device is already connected to %s.\n", + prv->dev->name ? prv->dev->name : "NULL"); + ipsec_dev_put(them); + return -EBUSY; + } + return ipsec_tunnel_attach(dev, them); + + case IPSEC_DEL_DEV: + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_tunnel_ioctl: " + "calling ipsec_tunnel_detatch.\n"); + if (! prv->dev) { + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_tunnel_ioctl: " + "physical device not connected.\n"); + return -ENODEV; + } + return ipsec_tunnel_detach(dev); + + case IPSEC_CLR_DEV: + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_tunnel_ioctl: " + "calling ipsec_tunnel_clear.\n"); + return ipsec_tunnel_clear(); + + default: + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_tunnel_ioctl: " + "unknown command %d.\n", + cmd); + return -EOPNOTSUPP; + } +} + +struct net_device *ipsec_get_device(int inst) +{ + struct net_device *ipsec_dev; + + ipsec_dev = NULL; + + if(inst < IPSEC_NUM_IF) { + ipsec_dev = ipsecdevices[inst]; + } + + return ipsec_dev; +} + +int +ipsec_device_event(struct notifier_block *unused, unsigned long event, void *ptr) +{ + struct net_device *dev = ptr; + struct net_device *ipsec_dev; + struct ipsecpriv *priv; + int i; + + if (dev == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_device_event: " + "dev=NULL for event type %ld.\n", + event); + return(NOTIFY_DONE); + } + + /* check for loopback devices */ + if (dev && (dev->flags & IFF_LOOPBACK)) { + return(NOTIFY_DONE); + } + + switch (event) { + case NETDEV_DOWN: + /* look very carefully at the scope of these compiler + directives before changing anything... -- RGB */ +#ifdef NET_21 + case NETDEV_UNREGISTER: + switch (event) { + case NETDEV_DOWN: +#endif /* NET_21 */ + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_device_event: " + "NETDEV_DOWN dev=%s flags=%x\n", + dev->name, + dev->flags); + if(strncmp(dev->name, "ipsec", strlen("ipsec")) == 0) { + printk(KERN_CRIT "IPSEC EVENT: KLIPS device %s shut down.\n", + dev->name); + } +#ifdef NET_21 + break; + case NETDEV_UNREGISTER: + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_device_event: " + "NETDEV_UNREGISTER dev=%s flags=%x\n", + dev->name, + dev->flags); + break; + } +#endif /* NET_21 */ + + /* find the attached physical device and detach it. */ + for(i = 0; i < IPSEC_NUM_IF; i++) { + ipsec_dev = ipsecdevices[i]; + + if(ipsec_dev) { + priv = (struct ipsecpriv *)(ipsec_dev->priv); + if(priv) { + ; + if(((struct net_device *)(priv->dev)) == dev) { + /* dev_close(ipsec_dev); */ + /* return */ ipsec_tunnel_detach(ipsec_dev); + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_device_event: " + "device '%s' has been detached.\n", + ipsec_dev->name); + break; + } + } else { + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_device_event: " + "device '%s' has no private data space!\n", + ipsec_dev->name); + } + } + } + break; + case NETDEV_UP: + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_device_event: " + "NETDEV_UP dev=%s\n", + dev->name); + break; +#ifdef NET_21 + case NETDEV_REBOOT: + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_device_event: " + "NETDEV_REBOOT dev=%s\n", + dev->name); + break; + case NETDEV_CHANGE: + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_device_event: " + "NETDEV_CHANGE dev=%s flags=%x\n", + dev->name, + dev->flags); + break; + case NETDEV_REGISTER: + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_device_event: " + "NETDEV_REGISTER dev=%s\n", + dev->name); + break; + case NETDEV_CHANGEMTU: + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_device_event: " + "NETDEV_CHANGEMTU dev=%s to mtu=%d\n", + dev->name, + dev->mtu); + break; + case NETDEV_CHANGEADDR: + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_device_event: " + "NETDEV_CHANGEADDR dev=%s\n", + dev->name); + break; + case NETDEV_GOING_DOWN: + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_device_event: " + "NETDEV_GOING_DOWN dev=%s\n", + dev->name); + break; + case NETDEV_CHANGENAME: + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_device_event: " + "NETDEV_CHANGENAME dev=%s\n", + dev->name); + break; +#endif /* NET_21 */ + default: + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_device_event: " + "event type %ld unrecognised for dev=%s\n", + event, + dev->name); + break; + } + return NOTIFY_DONE; +} + +/* + * Called when an ipsec tunnel device is initialized. + * The ipsec tunnel device structure is passed to us. + */ + +int +ipsec_tunnel_init(struct net_device *dev) +{ + int i; + + KLIPS_PRINT(debug_tunnel, + "klips_debug:ipsec_tunnel_init: " + "allocating %lu bytes initialising device: %s\n", + (unsigned long) sizeof(struct ipsecpriv), + dev->name ? dev->name : "NULL"); + + /* Add our tunnel functions to the device */ + dev->open = ipsec_tunnel_open; + dev->stop = ipsec_tunnel_close; + dev->hard_start_xmit = ipsec_tunnel_start_xmit; + dev->get_stats = ipsec_tunnel_get_stats; + + dev->priv = kmalloc(sizeof(struct ipsecpriv), GFP_KERNEL); + if (dev->priv == NULL) + return -ENOMEM; + memset((caddr_t)(dev->priv), 0, sizeof(struct ipsecpriv)); + + for(i = 0; i < sizeof(zeroes); i++) { + ((__u8*)(zeroes))[i] = 0; + } + +#ifndef NET_21 + /* Initialize the tunnel device structure */ + for (i = 0; i < DEV_NUMBUFFS; i++) + skb_queue_head_init(&dev->buffs[i]); +#endif /* !NET_21 */ + + dev->set_multicast_list = NULL; + dev->do_ioctl = ipsec_tunnel_ioctl; + dev->hard_header = NULL; + dev->rebuild_header = NULL; + dev->set_mac_address = NULL; +#ifndef NET_21 + dev->header_cache_bind = NULL; +#endif /* !NET_21 */ + dev->header_cache_update= NULL; + +#ifdef NET_21 +/* prv->neigh_setup = NULL; */ + dev->neigh_setup = ipsec_tunnel_neigh_setup_dev; +#endif /* NET_21 */ + dev->hard_header_len = 0; + dev->mtu = 0; + dev->addr_len = 0; + dev->type = ARPHRD_VOID; /* ARPHRD_TUNNEL; */ /* ARPHRD_ETHER; */ + dev->tx_queue_len = 10; /* Small queue */ + memset((caddr_t)(dev->broadcast),0xFF, ETH_ALEN); /* what if this is not attached to ethernet? */ + + /* New-style flags. */ + dev->flags = IFF_NOARP /* 0 */ /* Petr Novak */; + +#if 0 +#ifdef NET_21 + dev_init_buffers(dev); +#else /* NET_21 */ + dev->family = AF_INET; + dev->pa_addr = 0; + dev->pa_brdaddr = 0; + dev->pa_mask = 0; + dev->pa_alen = 4; +#endif /* NET_21 */ +#endif + + /* We're done. Have I forgotten anything? */ + return 0; +} + +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ +/* Module specific interface (but it links with the rest of IPSEC) */ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +int +ipsec_tunnel_probe(struct net_device *dev) +{ + ipsec_tunnel_init(dev); + return 0; +} + +struct net_device *ipsecdevices[IPSEC_NUM_IF]; + +int +ipsec_tunnel_init_devices(void) +{ + int i; + char name[IFNAMSIZ]; + struct net_device *dev_ipsec; + + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_tunnel_init_devices: " + "creating and registering IPSEC_NUM_IF=%u devices, allocating %lu per device, IFNAMSIZ=%u.\n", + IPSEC_NUM_IF, + (unsigned long) (sizeof(struct net_device) + IFNAMSIZ), + IFNAMSIZ); + + for(i = 0; i < IPSEC_NUM_IF; i++) { + sprintf(name, IPSEC_DEV_FORMAT, i); + dev_ipsec = (struct net_device*)kmalloc(sizeof(struct net_device), GFP_KERNEL); + if (dev_ipsec == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_tunnel_init_devices: " + "failed to allocate memory for device %s, quitting device init.\n", + name); + return -ENOMEM; + } + memset((caddr_t)dev_ipsec, 0, sizeof(struct net_device)); +#ifdef NETDEV_23 + strncpy(dev_ipsec->name, name, sizeof(dev_ipsec->name)); +#else /* NETDEV_23 */ + dev_ipsec->name = (char*)kmalloc(IFNAMSIZ, GFP_KERNEL); + if (dev_ipsec->name == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_tunnel_init_devices: " + "failed to allocate memory for device %s name, quitting device init.\n", + name); + return -ENOMEM; + } + memset((caddr_t)dev_ipsec->name, 0, IFNAMSIZ); + strncpy(dev_ipsec->name, name, IFNAMSIZ); +#endif /* NETDEV_23 */ + dev_ipsec->next = NULL; + dev_ipsec->init = &ipsec_tunnel_probe; + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_tunnel_init_devices: " + "registering device %s\n", + dev_ipsec->name); + + /* reference and hold the device reference */ + dev_hold(dev_ipsec); + ipsecdevices[i]=dev_ipsec; + + if (register_netdev(dev_ipsec) != 0) { + KLIPS_PRINT(1 || debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_tunnel_init_devices: " + "registering device %s failed, quitting device init.\n", + dev_ipsec->name); + return -EIO; + } else { + KLIPS_PRINT(debug_tunnel & DB_TN_INIT, + "klips_debug:ipsec_tunnel_init_devices: " + "registering device %s succeeded, continuing...\n", + dev_ipsec->name); + } + } + return 0; +} + +/* void */ +int +ipsec_tunnel_cleanup_devices(void) +{ + int error = 0; + int i; + struct net_device *dev_ipsec; + + for(i = 0; i < IPSEC_NUM_IF; i++) { + dev_ipsec = ipsecdevices[i]; + if(dev_ipsec == NULL) { + continue; + } + + /* release reference */ + ipsecdevices[i]=NULL; + ipsec_dev_put(dev_ipsec); + + KLIPS_PRINT(debug_tunnel, "Unregistering %s (refcnt=%d)\n", + dev_ipsec->name, + atomic_read(&dev_ipsec->refcnt)); + unregister_netdev(dev_ipsec); + KLIPS_PRINT(debug_tunnel, "Unregisted %s\n", dev_ipsec->name); +#ifndef NETDEV_23 + kfree(dev_ipsec->name); + dev_ipsec->name=NULL; +#endif /* !NETDEV_23 */ + kfree(dev_ipsec->priv); + dev_ipsec->priv=NULL; + } + return error; +} + +/* + * $Log: ipsec_tunnel.c,v $ + * Revision 1.232.2.5 2006/10/06 21:39:26 paul + * Fix for 2.6.18+ only include linux/config.h if AUTOCONF_INCLUDED is not + * set. This is defined through autoconf.h which is included through the + * linux kernel build macros. + * + * Revision 1.232.2.4 2006/03/28 20:58:19 ken + * Fix for KLIPS on 2.6.16 - need to include now + * + * Revision 1.232.2.3 2006/02/15 05:14:12 paul + * 568: uninitialized struct in ipsec_tunnel.c coud break routing under 2.6 kernels + * ipsec_tunnel_send() calls the entry point function of routing subsystem + * (ip_route_output_key()) using a not fully initialized struct of type + * struct flowi. + * This will cause a failure in routing packets through an ipsec interface + * when patches for multipath routing from http://www.ssi.bg/~ja/ + * are applied. + * + * Revision 1.232.2.2 2005/11/22 04:11:52 ken + * Backport fixes for 2.6.14 kernels from HEAD + * + * Revision 1.232.2.1 2005/09/21 22:57:43 paul + * pulled up compile fix for 2.6.13 + * + * Revision 1.232 2005/06/04 16:06:06 mcr + * better patch for nat-t rcv-device code. + * + * Revision 1.231 2005/05/21 03:28:51 mcr + * make sure that port-500 hole is used for port-4500 as well. + * + * Revision 1.230 2005/05/11 01:42:04 mcr + * removal of debugging showed useless/wrong variables used. + * + * Revision 1.229 2005/04/29 05:10:22 mcr + * removed from extraenous includes to make unit testing easier. + * + * Revision 1.228 2005/01/26 00:50:35 mcr + * adjustment of confusion of CONFIG_IPSEC_NAT vs CONFIG_KLIPS_NAT, + * and make sure that NAT_TRAVERSAL is set as well to match + * userspace compiles of code. + * + * Revision 1.227 2004/12/10 21:16:08 ken + * 64bit fixes from Opteron port of KLIPS 2.6 + * + * Revision 1.226 2004/12/04 07:11:23 mcr + * fix for snmp SIOCPRIVATE use of snmpd. + * http://bugs.xelerance.com/view.php?id=144 + * + * Revision 1.225 2004/12/03 21:25:57 mcr + * compile time fixes for running on 2.6. + * still experimental. + * + * Revision 1.224 2004/08/14 03:28:24 mcr + * fixed log comment to remove warning about embedded comment. + * + * Revision 1.223 2004/08/04 15:57:07 mcr + * moved des .h files to include/des/ * + * included 2.6 protocol specific things + * started at NAT-T support, but it will require a kernel patch. + * + * Revision 1.222 2004/08/03 18:19:08 mcr + * in 2.6, use "net_device" instead of #define device->net_device. + * this probably breaks 2.0 compiles. + * + * Revision 1.221 2004/07/10 19:11:18 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.220 2004/04/06 02:49:26 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.219 2004/02/03 03:13:17 mcr + * minor edits for readability, and error reporting. + * + * Revision 1.218 2004/01/27 20:29:20 mcr + * fix for unregister_netdev() problem for underlying eth0. + * + * Revision 1.217 2003/12/10 01:14:27 mcr + * NAT-traversal patches to KLIPS. + * + * Revision 1.216 2003/12/04 23:01:17 mcr + * removed ipsec_netlink.h + * + * Revision 1.215 2003/12/04 16:35:16 ken + * Fix for ATM devices where physdev->hard_header_len *is* correct + * + * Revision 1.214 2003/11/25 23:52:37 mcr + * fix typo in patch - ixs-> needed. + * + * Revision 1.213 2003/11/24 18:25:49 mcr + * patch from willy@w.ods.org to fix problems with ATM interfaces. + * + * Revision 1.212 2003/10/31 02:27:55 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.211.2.2 2003/10/29 01:30:41 mcr + * elimited "struct sa_id". + * + * Revision 1.211.2.1 2003/09/21 13:59:56 mcr + * pre-liminary X.509 patch - does not yet pass tests. + * + * Revision 1.211 2003/09/10 16:46:30 mcr + * patches for 2.4 backport/2.6 existence. + * + * Revision 1.210 2003/07/31 22:47:16 mcr + * preliminary (untested by FS-team) 2.5 patches. + * + * Revision 1.209 2003/06/22 21:28:43 mcr + * inability to unload module was caused by calls to dev_get + * (ipsec_dev_get), to gather a device from a name. There is + * simply no reason to look the devices up - they should be kept + * in a nice array, ready for use. + * + * Revision 1.208 2003/06/22 21:25:07 mcr + * all staticly counted ipsecXXX device support removed. + * + * Revision 1.207 2003/04/02 20:15:37 mcr + * fix for PR#204 - do not clear connection tracking info if we + * the packet is being sent in the clear. + * + * Revision 1.206 2003/02/12 19:32:51 rgb + * Refactored file to: + * ipsec_xmit.c + * ipsec_xmit.h + * ipsec_mast.c + * + * Revision 1.205 2003/02/06 17:47:00 rgb + * + * Remove unused ipsec_tunnel_lock() and ipsec_tunnel_unlock() code. + * Refactor ipsec_tunnel_start_xmit() further into: + * ipsec_xmit_sanity_check_dev() + * ipsec_xmit_sanity_check_skb() + * ipsec_xmit_strip_hard_header() + * ipsec_xmit_restore_hard_header() + * ipsec_xmit_send() + * ipsec_xmit_cleanup() + * and start a skeletal ipsec_mast_start_xmit() . + * + * Revision 1.204 2003/02/06 06:43:46 rgb + * + * Refactor ipsec_tunnel_start_xmit, bringing out: + * ipsec_xmit_SAlookup + * ipsec_xmit_encap_once + * ipsec_xmit_encap_bundle + * + * Revision 1.203 2003/02/06 02:21:34 rgb + * + * Moved "struct auth_alg" from ipsec_rcv.c to ipsec_ah.h . + * Changed "struct ah" to "struct ahhdr" and "struct esp" to "struct esphdr". + * Removed "#ifdef INBOUND_POLICY_CHECK_eroute" dead code. + * + * Revision 1.202 2003/01/03 07:38:01 rgb + * + * Start to refactor ipsec_tunnel_start_xmit() by putting local variables + * into struct ipsec_xmit_state and renaming a few variables to give more + * unique or searchable names. + * + * Revision 1.201 2003/01/03 00:31:28 rgb + * + * Clean up memset usage, including fixing 2 places where keys were not + * properly wiped. + * + * Revision 1.200 2002/12/06 02:24:02 mcr + * patches for compiling against SUSE 8.1 kernels. Requires + * an additional -DSUSE_LINUX_2_4_19_IS_STUPID. + * + * Revision 1.199 2002/10/12 23:11:53 dhr + * + * [KenB + DHR] more 64-bit cleanup + * + * Revision 1.198 2002/10/05 05:02:58 dhr + * + * C labels go on statements + * + * Revision 1.197 2002/09/20 05:01:50 rgb + * Added compiler directive to switch on IP options and fix IP options bug. + * Make ip->ihl treatment consistent using shifts rather than multiplications. + * Check for large enough packet before accessing udp header for IKE bypass. + * Added memory allocation debugging. + * Fixed potential memory allocation failure-induced oops. + * + * Revision 1.196 2002/07/24 18:44:54 rgb + * Type fiddling to tame ia64 compiler. + * + * Revision 1.195 2002/07/23 03:36:07 rgb + * Fixed 2.2 device initialisation hang. + * + * Revision 1.194 2002/05/27 21:40:34 rgb + * Set unused ipsec devices to ARPHRD_VOID to avoid confusing iproute2. + * Cleaned up intermediate step to dynamic device allocation. + * + * Revision 1.193 2002/05/27 19:31:36 rgb + * Convert to dynamic ipsec device allocation. + * Remove final vistiges of tdb references via IPSEC_KLIPS1_COMPAT. + * + * Revision 1.192 2002/05/23 07:14:28 rgb + * Added refcount code. + * Cleaned up %p variants to 0p%p for test suite cleanup. + * + * Revision 1.191 2002/05/14 02:34:37 rgb + * Change all references to tdb, TDB or Tunnel Descriptor Block to ips, + * ipsec_sa or ipsec_sa. + * + * Revision 1.190 2002/04/24 07:55:32 mcr + * #include patches and Makefiles for post-reorg compilation. + * + * Revision 1.189 2002/04/24 07:36:32 mcr + * Moved from ./klips/net/ipsec/ipsec_tunnel.c,v + * + * Revision 1.188 2002/04/20 00:12:25 rgb + * Added esp IV CBC attack fix, disabled. + * + * Revision 1.187 2002/03/23 19:55:17 rgb + * Fix for 2.2 local IKE fragmentation blackhole. Still won't work if + * iptraf or another pcap app is running. + * + * Revision 1.186 2002/03/19 03:26:22 rgb + * Applied DHR's tunnel patch to streamline IKE/specialSA processing. + * + * Revision 1.185 2002/02/20 04:13:05 rgb + * Send back ICMP_PKT_FILTERED upon %reject. + * + * Revision 1.184 2002/01/29 17:17:56 mcr + * moved include of ipsec_param.h to after include of linux/kernel.h + * otherwise, it seems that some option that is set in ipsec_param.h + * screws up something subtle in the include path to kernel.h, and + * it complains on the snprintf() prototype. + * + * Revision 1.183 2002/01/29 04:00:53 mcr + * more excise of kversions.h header. + * + * Revision 1.182 2002/01/29 02:13:18 mcr + * introduction of ipsec_kversion.h means that include of + * ipsec_param.h must preceed any decisions about what files to + * include to deal with differences in kernel source. + * + * Revision 1.181 2002/01/07 20:00:33 rgb + * Added IKE destination port debugging. + * + * Revision 1.180 2001/12/21 21:49:54 rgb + * Fixed bug as a result of moving IKE bypass above %trap/%hold code. + * + * Revision 1.179 2001/12/19 21:08:14 rgb + * Added transport protocol ports to ipsec_print_ip(). + * Update eroute info for non-SA targets. + * Added obey DF code disabled. + * Fixed formatting bugs in ipsec_tunnel_hard_header(). + * + * Revision 1.178 2001/12/05 09:36:10 rgb + * Moved the UDP/500 IKE check just above the %hold/%trap checks to avoid + * IKE packets being stolen by the %hold (and returned to the sending KMd + * in an ACQUIRE, ironically ;-). + * + * Revision 1.177 2001/11/26 09:23:50 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.170.2.1 2001/09/25 02:28:27 mcr + * struct tdb -> struct ipsec_sa. + * lifetime checks moved to common routines. + * cleaned up includes. + * + * Revision 1.170.2.2 2001/10/22 21:08:01 mcr + * include des.h, removed phony prototypes and fixed calling + * conventions to match real prototypes. + * + * Revision 1.176 2001/11/09 18:32:31 rgb + * Added Hans Schultz' fragmented UDP/500 IKE socket port selector. + * + * Revision 1.175 2001/11/06 20:47:00 rgb + * Added Eric Espie's TRAPSUBNET fix, minus spin-lock-bh dabbling. + * + * Revision 1.174 2001/11/06 19:50:43 rgb + * Moved IP_SEND, ICMP_SEND, DEV_QUEUE_XMIT macros to ipsec_tunnel.h for + * use also by pfkey_v2_parser.c + * + * Revision 1.173 2001/10/29 21:53:44 henry + * tone down the device-down message slightly, until we can make it smarter + * + * Revision 1.172 2001/10/26 04:59:37 rgb + * Added a critical level syslog message if an ipsec device goes down. + * + * Revision 1.171 2001/10/18 04:45:21 rgb + * 2.4.9 kernel deprecates linux/malloc.h in favour of linux/slab.h, + * lib/freeswan.h version macros moved to lib/kversions.h. + * Other compiler directive cleanups. + * + * Revision 1.170 2001/09/25 00:09:50 rgb + * Added NetCelo's TRAPSUBNET code to convert a new type TRAPSUBNET into a + * HOLD. + * + * Revision 1.169 2001/09/15 16:24:05 rgb + * Re-inject first and last HOLD packet when an eroute REPLACE is done. + * + * Revision 1.168 2001/09/14 16:58:37 rgb + * Added support for storing the first and last packets through a HOLD. + * + * Revision 1.167 2001/09/08 21:13:33 rgb + * Added pfkey ident extension support for ISAKMPd. (NetCelo) + * + * Revision 1.166 2001/08/27 19:47:59 rgb + * Clear tdb before usage. + * Added comment: clear IF before calling routing? + * + * Revision 1.165 2001/07/03 01:23:53 rgb + * Send back ICMP iff DF set, !ICMP, offset==0, sysctl_icmp, iph->tot_len > + * emtu, and don't drop. + * + * Revision 1.164 2001/06/14 19:35:10 rgb + * Update copyright date. + * + * Revision 1.163 2001/06/06 20:28:51 rgb + * Added sanity checks for NULL skbs and devices. + * Added more debugging output to various functions. + * Removed redundant dev->priv argument to ipsec_tunnel_{at,de}tach(). + * Renamed ipsec_tunnel_attach() virtual and physical device arguments. + * Corrected neigh_setup() device function assignment. + * Keep valid pointers to ipsec_tunnel_*() on detach. + * Set dev->type to the originally-initiallised value. + * + * Revision 1.162 2001/06/01 07:28:04 rgb + * Added sanity checks for detached devices. Don't down virtual devices + * to prevent packets going out in the clear if the detached device comes + * back up. + * + * Revision 1.161 2001/05/30 08:14:52 rgb + * Removed vestiges of esp-null transforms. + * NetDev Notifier instrumentation to track down disappearing devices. + * + * Revision 1.160 2001/05/29 05:15:12 rgb + * Added SS' PMTU patch which notifies sender if packet doesn't fit + * physical MTU (if it wasn't ICMP) and then drops it. + * + * Revision 1.159 2001/05/27 06:12:12 rgb + * Added structures for pid, packet count and last access time to eroute. + * Added packet count to beginning of /proc/net/ipsec_eroute. + * + * Revision 1.158 2001/05/24 05:39:33 rgb + * Applied source zeroing to 2.2 ip_route_output() call as well to enable + * PASS eroutes for opportunism. + * + * Revision 1.157 2001/05/23 22:35:28 rgb + * 2.4 source override simplification. + * + * Revision 1.156 2001/05/23 21:41:31 rgb + * Added error return code printing on ip_route_output(). + * + * Revision 1.155 2001/05/23 05:09:13 rgb + * Fixed incorrect ip_route_output() failure message. + * + * Revision 1.154 2001/05/21 14:53:31 rgb + * Added debug statement for case when ip_route_output() fails, causing + * packet to be dropped, but log looked ok. + * + * Revision 1.153 2001/05/19 02:37:54 rgb + * Fixed missing comment termination. + * + * Revision 1.152 2001/05/19 02:35:50 rgb + * Debug code optimisation for non-debug speed. + * Kernel version compiler define comments. + * 2.2 and 2.4 kernel ip_send device and ip debug output added. + * + * Revision 1.151 2001/05/18 16:17:35 rgb + * Changed reference from "magic" to "shunt" SAs. + * + * Revision 1.150 2001/05/18 16:12:19 rgb + * Changed UDP/500 bypass test from 3 nested ifs to one anded if. + * + * Revision 1.149 2001/05/16 04:39:33 rgb + * Add default == eroute.dest to IKE bypass conditions for magic eroutes. + * + * Revision 1.148 2001/05/05 03:31:41 rgb + * IP frag debugging updates and enhancements. + * + * Revision 1.147 2001/05/03 19:41:40 rgb + * Added SS' skb_cow fix for 2.4.4. + * + * Revision 1.146 2001/04/30 19:28:16 rgb + * Update for 2.4.4. ip_select_ident() now has 3 args. + * + * Revision 1.145 2001/04/23 14:56:10 rgb + * Added spin_lock() check to prevent double-locking for multiple + * transforms and hence kernel lock-ups with SMP kernels. + * + * Revision 1.144 2001/04/21 23:04:45 rgb + * Define out skb->used for 2.4 kernels. + * Check if soft expire has already been sent before sending another to + * prevent ACQUIRE flooding. + * + * Revision 1.143 2001/03/16 07:37:21 rgb + * Added comments to all #endifs. + * + * Revision 1.142 2001/02/28 05:03:27 rgb + * Clean up and rationalise startup messages. + * + * Revision 1.141 2001/02/27 22:24:54 rgb + * Re-formatting debug output (line-splitting, joining, 1arg/line). + * Check for satoa() return codes. + * + * Revision 1.140 2001/02/27 06:40:12 rgb + * Fixed TRAP->HOLD eroute byte order. + * + * Revision 1.139 2001/02/26 20:38:59 rgb + * Added compiler defines for 2.4.x-specific code. + * + * Revision 1.138 2001/02/26 19:57:27 rgb + * Implement magic SAs %drop, %reject, %trap, %hold, %pass as part + * of the new SPD and to support opportunistic. + * Drop sysctl_ipsec_{no_eroute_pass,opportunistic}, replaced by magic SAs. + * + * Revision 1.137 2001/02/19 22:29:49 rgb + * Fixes for presence of active ipv6 segments which share ipsec physical + * device (gg). + * + * Revision 1.136 2001/01/29 22:30:38 rgb + * Fixed minor acquire debug printing bug. + * + * Revision 1.135 2001/01/29 22:19:45 rgb + * Zero source address for 2.4 bypass route lookup. + * + * Revision 1.134 2001/01/23 20:19:49 rgb + * 2.4 fix to remove removed is_clone member. + * + * Revision 1.133 2000/12/09 22:08:35 rgb + * Fix NET_23 bug, should be NETDEV_23. + * + * Revision 1.132 2000/12/01 06:54:50 rgb + * Fix for new 2.4 IP TTL default variable name. + * + * Revision 1.131 2000/11/09 20:52:15 rgb + * More spinlock shuffling, locking earlier and unlocking later in rcv to + * include ipcomp and prevent races, renaming some tdb variables that got + * forgotten, moving some unlocks to include tdbs and adding a missing + * unlock. Thanks to Svenning for some of these. + * + * Revision 1.130 2000/11/09 20:11:22 rgb + * Minor shuffles to fix non-standard kernel config option selection. + * + * Revision 1.129 2000/11/06 04:32:49 rgb + * Clean up debug printing. + * Copy skb->protocol for all kernel versions. + * Ditched spin_lock_irqsave in favour of spin_lock. + * Disabled TTL decrement, done in ip_forward. + * Added debug printing before pfkey_acquire(). + * Fixed printk-deltdbchain-spin_lock races (Svenning). + * Use defaultTTL for 2.1+ kernels. + * Add Svenning's adaptive content compression. + * Fix up debug display arguments. + * + * Revision 1.128 2000/09/28 00:58:57 rgb + * Moved the IKE passthrough check after the eroute lookup so we can pass + * IKE through intermediate tunnels. + * + * Revision 1.127 2000/09/22 17:52:11 rgb + * Fixed misleading ipcomp debug output. + * + * Revision 1.126 2000/09/22 04:22:56 rgb + * Fixed dumb spi->cpi conversion error. + * + * Revision 1.125 2000/09/21 04:34:48 rgb + * A few debug-specific things should be hidden under + * CONFIG_IPSEC_DEBUG.(MB) + * Improved ip_send() error handling.(MB) + * + * Revision 1.124 2000/09/21 03:40:58 rgb + * Added more debugging to try and track down the cpi outward copy problem. + * + * Revision 1.123 2000/09/19 07:08:49 rgb + * Added debugging to outgoing compression report. + * + * Revision 1.122 2000/09/18 19:21:26 henry + * RGB-supplied fix for RH5.2 problem + * + * Revision 1.121 2000/09/17 21:05:09 rgb + * Added tdb to skb_compress call to write in cpi. + * + * Revision 1.120 2000/09/17 16:57:16 rgb + * Added Svenning's patch to remove restriction of ipcomp to innermost + * transform. + * + * Revision 1.119 2000/09/15 11:37:01 rgb + * Merge in heavily modified Svenning Soerensen's + * IPCOMP zlib deflate code. + * + * Revision 1.118 2000/09/15 04:57:16 rgb + * Moved debug output after sanity check. + * Added tos copy sysctl. + * + * Revision 1.117 2000/09/12 03:22:51 rgb + * Converted ipsec_icmp, no_eroute_pass, opportunistic and #if0 debugs to + * sysctl. + * + * Revision 1.116 2000/09/08 19:18:19 rgb + * Change references from DEBUG_IPSEC to CONFIG_IPSEC_DEBUG. + * Added outgoing opportunistic hook, ifdef'ed out. + * + * Revision 1.115 2000/08/30 05:27:29 rgb + * Removed all the rest of the references to tdb_spi, tdb_proto, tdb_dst. + * Kill remainder of tdb_xform, tdb_xdata, xformsw. + * + * Revision 1.114 2000/08/28 18:15:46 rgb + * Added MB's nf-debug reset patch. + * + * Revision 1.113 2000/08/27 02:26:40 rgb + * Send all no-eroute-bypass, pluto-bypass and passthrough packets through + * fragmentation machinery for 2.0, 2.2 and 2.4 kernels. + * + * Revision 1.112 2000/08/20 21:37:33 rgb + * Activated pfkey_expire() calls. + * Added a hard/soft expiry parameter to pfkey_expire(). (Momchil) + * Re-arranged the order of soft and hard expiry to conform to RFC2367. + * Clean up references to CONFIG_IPSEC_PFKEYv2. + * + * Revision 1.111 2000/08/01 14:51:51 rgb + * Removed _all_ remaining traces of DES. + * + * Revision 1.110 2000/07/28 14:58:31 rgb + * Changed kfree_s to kfree, eliminating extra arg to fix 2.4.0-test5. + * + * Revision 1.109 2000/07/28 13:50:54 rgb + * Changed enet_statistics to net_device_stats and added back compatibility + * for pre-2.1.19. + * + * Revision 1.108 2000/05/16 03:03:11 rgb + * Updates for 2.3.99pre8 from MB. + * + * Revision 1.107 2000/05/10 23:08:21 rgb + * Print a debug warning about bogus packets received by the outgoing + * processing machinery only when klipsdebug is not set to none. + * Comment out the device initialisation informational messages. + * + * Revision 1.106 2000/05/10 19:17:14 rgb + * Define an IP_SEND macro, intending to have all packet passthroughs + * use fragmentation. This didn't quite work, but is a step in the + * right direction. + * Added buffer allocation debugging statements. + * Added configure option to shut off no eroute passthrough. + * Only check usetime against soft and hard limits if the tdb has been + * used. + * Cast output of ntohl so that the broken prototype doesn't make our + * compile noisy. + * + * Revision 1.105 2000/03/22 16:15:37 rgb + * Fixed renaming of dev_get (MB). + * + * Revision 1.104 2000/03/16 14:04:15 rgb + * Indented headers for readability. + * Fixed debug scope to enable compilation with debug off. + * Added macros for ip_chk_addr and IS_MYADDR for identifying self. + * + * Revision 1.103 2000/03/16 07:11:07 rgb + * Hardcode PF_KEYv2 support. + * Fixed bug which allowed UDP/500 packet from another machine + * through in the clear. + * Added disabled skb->protocol fix for ISDN/ASYNC PPP from Matjaz Godec. + * + * Revision 1.102 2000/03/14 12:26:59 rgb + * Added skb->nfct support for clearing netfilter conntrack bits (MB). + * + * Revision 1.101 2000/02/14 21:05:22 rgb + * Added MB's netif_queue fix for kernels 2.3.43+. + * + * Revision 1.100 2000/01/26 10:04:57 rgb + * Fixed noisy 2.0 printk arguments. + * + * Revision 1.99 2000/01/21 06:16:25 rgb + * Added sanity checks on skb_push(), skb_pull() to prevent panics. + * Switched to AF_ENCAP macro. + * Shortened debug output per packet and re-arranging debug_tunnel + * bitmap flags, while retaining necessary information to avoid + * trampling the kernel print ring buffer. + * Reformatted recursion switch code. + * Changed all references to tdb_proto to tdb_said.proto for clarity. + * + * Revision 1.98 2000/01/13 08:09:31 rgb + * Shuffled debug_tunnel switches to focus output. + * Fixed outgoing recursion bug, limiting to recursing only if the remote + * SG changes and if it is valid, ie. not passthrough. + * Clarified a number of debug messages. + * + * Revision 1.97 2000/01/10 16:37:16 rgb + * MB support for new ip_select_ident() upon disappearance of + * ip_id_count in 2.3.36+. + * + * Revision 1.96 1999/12/31 14:59:08 rgb + * MB fix to use new skb_copy_expand in kernel 2.3.35. + * + * Revision 1.95 1999/12/29 21:15:44 rgb + * Fix tncfg to aliased device bug. + * + * Revision 1.94 1999/12/22 04:26:06 rgb + * Converted all 'static' functions to 'DEBUG_NO_STATIC' to enable + * debugging by providing external labels to all functions with debugging + * turned on. + * + * Revision 1.93 1999/12/13 13:30:14 rgb + * Changed MTU reports and HW address reporting back to debug only. + * + * Revision 1.92 1999/12/07 18:57:56 rgb + * Fix PFKEY symbol compile error (SADB_*) without pfkey enabled. + * + * Revision 1.91 1999/12/01 22:15:36 rgb + * Add checks for LARVAL and DEAD SAs. + * Change state of SA from MATURE to DYING when a soft lifetime is + * reached and print debug warning. + * + * Revision 1.90 1999/11/23 23:04:04 rgb + * Use provided macro ADDRTOA_BUF instead of hardcoded value. + * Sort out pfkey and freeswan headers, putting them in a library path. + * + * Revision 1.89 1999/11/18 18:50:59 rgb + * Changed all device registrations for static linking to + * dynamic to reduce the number and size of patches. + * + * Revision 1.88 1999/11/18 04:09:19 rgb + * Replaced all kernel version macros to shorter, readable form. + * + * Revision 1.87 1999/11/17 15:53:40 rgb + * Changed all occurrences of #include "../../../lib/freeswan.h" + * to #include which works due to -Ilibfreeswan in the + * klips/net/ipsec/Makefile. + * + * Revision 1.86 1999/10/16 18:25:37 rgb + * Moved SA lifetime expiry checks before packet processing. + * Expire SA on replay counter rollover. + * + * Revision 1.85 1999/10/16 04:24:31 rgb + * Add stats for time since last packet. + * + * Revision 1.84 1999/10/16 00:30:47 rgb + * Added SA lifetime counting. + * + * Revision 1.83 1999/10/15 22:15:57 rgb + * Clean out cruft. + * Add debugging. + * + * Revision 1.82 1999/10/08 18:26:19 rgb + * Fix 2.0.3x outgoing fragmented packet memory leak. + * + * Revision 1.81 1999/10/05 02:38:54 rgb + * Lower the default mtu of virtual devices to 16260. + * + * Revision 1.80 1999/10/03 18:56:41 rgb + * Spinlock support for 2.3.xx. + * Don't forget to undo spinlocks on error! + * Check for valid eroute before copying the structure. + * + * Revision 1.79 1999/10/01 15:44:53 rgb + * Move spinlock header include to 2.1> scope. + * + * Revision 1.78 1999/10/01 00:02:43 rgb + * Added tdb structure locking. + * Added eroute structure locking. + * + * Revision 1.77 1999/09/30 02:52:29 rgb + * Add Marc Boucher's Copy-On-Write code (same as ipsec_rcv.c). + * + * Revision 1.76 1999/09/25 19:31:27 rgb + * Refine MSS hack to affect SYN, but not SYN+ACK packets. + * + * Revision 1.75 1999/09/24 22:52:38 rgb + * Fix two things broken in 2.0.38 by trying to fix network notifiers. + * + * Revision 1.74 1999/09/24 00:30:37 rgb + * Add test for changed source as well as destination to check for + * recursion. + * + * Revision 1.73 1999/09/23 20:52:24 rgb + * Add James Morris' MSS hack patch, disabled. + * + * Revision 1.72 1999/09/23 20:22:40 rgb + * Enable, tidy and fix network notifier code. + * + * Revision 1.71 1999/09/23 18:09:05 rgb + * Clean up 2.2.x fragmenting traces. + * Disable dev->type switching, forcing ARPHRD_TUNNEL. + * + * Revision 1.70 1999/09/22 14:14:24 rgb + * Add sanity checks for revectored calls to prevent calling a downed I/F. + * + * Revision 1.69 1999/09/21 15:00:57 rgb + * Add Marc Boucher's packet size check. + * Flesh out network device notifier code. + * + * Revision 1.68 1999/09/18 11:39:57 rgb + * Start to add (disabled) netdevice notifier code. + * + * Revision 1.67 1999/09/17 23:44:40 rgb + * Add a comment warning potential code hackers to stay away from mac.raw. + * + * Revision 1.66 1999/09/17 18:04:02 rgb + * Add fix for unpredictable hard_header_len for ISDN folks (thanks MB). + * Ditch TTL decrement in 2.2 (MB). + * + * Revision 1.65 1999/09/15 23:15:35 henry + * Marc Boucher's PPP fixes + * + * Revision 1.64 1999/09/07 13:40:53 rgb + * Ditch unreliable references to skb->mac.raw. + * + * Revision 1.63 1999/08/28 11:33:09 rgb + * Check for null skb->mac pointer. + * + * Revision 1.62 1999/08/28 02:02:30 rgb + * Add Marc Boucher's fix for properly dealing with skb->sk. + * + * Revision 1.61 1999/08/27 05:23:05 rgb + * Clean up skb->data/raw/nh/h manipulation. + * Add Marc Boucher's mods to aid tcpdump. + * Add sanity checks to skb->raw/nh/h pointer copies in skb_copy_expand. + * Re-order hard_header stripping -- might be able to remove it... + * + * Revision 1.60 1999/08/26 20:01:02 rgb + * Tidy up compiler directives and macros. + * Re-enable ICMP for tunnels where inner_dst != outer_dst. + * Remove unnecessary skb->dev = physdev assignment affecting 2.2.x. + * + * Revision 1.59 1999/08/25 15:44:41 rgb + * Clean up from 2.2.x instrumenting for compilation under 2.0.36. + * + * Revision 1.58 1999/08/25 15:00:54 rgb + * Add dst cache code for 2.2.xx. + * Add sanity check for skb packet header pointers. + * Add/modify debugging instrumentation to *_start_xmit, *_hard_header and + * *_rebuild_header. + * Add neigh_* cache code. + * Change dev->type back to ARPHRD_TUNNEL. + * + * Revision 1.57 1999/08/17 21:50:23 rgb + * Fixed minor debug output bugs. + * Regrouped error recovery exit code. + * Added compiler directives to remove unwanted code and symbols. + * Shut off ICMP messages: to be refined to only send ICMP to remote systems. + * Add debugging code for output function addresses. + * Fix minor bug in (possibly unused) header_cache_bind function. + * Add device neighbour caching code. + * Change dev->type from ARPHRD_TUNNEL to physdev->type. + * + * Revision 1.56 1999/08/03 17:22:56 rgb + * Debug output clarification using KERN_* macros. Other inactive changes + * added. + * + * Revision 1.55 1999/08/03 16:58:46 rgb + * Fix skb_copy_expand size bug. Was getting incorrect size. + * + * Revision 1.54 1999/07/14 19:32:38 rgb + * Fix oversize packet crash and ssh stalling in 2.2.x kernels. + * + * Revision 1.53 1999/06/10 15:44:02 rgb + * Minor reformatting and clean-up. + * + * Revision 1.52 1999/05/09 03:25:36 rgb + * Fix bug introduced by 2.2 quick-and-dirty patch. + * + * Revision 1.51 1999/05/08 21:24:59 rgb + * Add casting to silence the 2.2.x compile. + * + * Revision 1.50 1999/05/05 22:02:32 rgb + * Add a quick and dirty port to 2.2 kernels by Marc Boucher . + * + * Revision 1.49 1999/04/29 15:18:52 rgb + * Change gettdb parameter to a pointer to reduce stack loading and + * facilitate parameter sanity checking. + * Fix undetected bug that might have tried to access a null pointer. + * Eliminate unnessessary usage of tdb_xform member to further switch + * away from the transform switch to the algorithm switch. + * Add return values to init and cleanup functions. + * + * Revision 1.48 1999/04/16 15:38:00 rgb + * Minor rearrangement of freeing code to avoid memory leaks with impossible or + * rare situations. + * + * Revision 1.47 1999/04/15 15:37:25 rgb + * Forward check changes from POST1_00 branch. + * + * Revision 1.32.2.4 1999/04/13 21:00:18 rgb + * Ditch 'things I wish I had known before...'. + * + * Revision 1.32.2.3 1999/04/13 20:34:38 rgb + * Free skb after fragmentation. + * Use stats more effectively. + * Add I/F to mtu notch-down reporting. + * + * Revision 1.32.2.2 1999/04/02 04:26:14 rgb + * Backcheck from HEAD, pre1.0. + * + * Revision 1.46 1999/04/11 00:29:00 henry + * GPL boilerplate + * + * Revision 1.45 1999/04/07 15:42:01 rgb + * Fix mtu/ping bug AGAIN! + * + * Revision 1.44 1999/04/06 04:54:27 rgb + * Fix/Add RCSID Id: and Log: bits to make PHMDs happy. This includes + * patch shell fixes. + * + * Revision 1.43 1999/04/04 03:57:07 rgb + * ip_fragment() doesn't free the supplied skb. Freed. + * + * Revision 1.42 1999/04/01 23:27:15 rgb + * Preload size of virtual mtu. + * + * Revision 1.41 1999/04/01 09:31:23 rgb + * Invert meaning of ICMP PMTUD config option and clarify. + * Code clean-up. + * + * Revision 1.40 1999/04/01 04:37:17 rgb + * SSH stalling bug fix. + * + * Revision 1.39 1999/03/31 23:44:28 rgb + * Don't send ICMP on DF and frag_off. + * + * Revision 1.38 1999/03/31 15:20:10 rgb + * Quiet down debugging. + * + * Revision 1.37 1999/03/31 08:30:31 rgb + * Add switch to shut off ICMP PMTUD packets. + * + * Revision 1.36 1999/03/31 05:44:47 rgb + * Keep PMTU reduction private. + * + * Revision 1.35 1999/03/27 15:13:02 rgb + * PMTU/fragmentation bug fix. + * + * Revision 1.34 1999/03/17 21:19:26 rgb + * Fix kmalloc nonatomic bug. + * + * Revision 1.33 1999/03/17 15:38:42 rgb + * Code clean-up. + * ESP_NULL IV bug fix. + * + * Revision 1.32 1999/03/01 20:44:25 rgb + * Code clean-up. + * Memory leak bug fix. + * + * Revision 1.31 1999/02/27 00:02:09 rgb + * Tune to report the MTU reduction once, rather than after every recursion + * through the encapsulating code, preventing tcp stream stalling. + * + * Revision 1.30 1999/02/24 20:21:01 rgb + * Reformat debug printk's. + * Fix recursive encapsulation, dynamic MTU bugs and add debugging code. + * Clean-up. + * + * Revision 1.29 1999/02/22 17:08:14 rgb + * Fix recursive encapsulation code. + * + * Revision 1.28 1999/02/19 18:27:02 rgb + * Improve DF, fragmentation and PMTU behaviour and add dynamic MTU discovery. + * + * Revision 1.27 1999/02/17 16:51:37 rgb + * Clean out unused cruft. + * Temporarily tone down volume of debug output. + * Temporarily shut off fragment rejection. + * Disabled temporary failed recursive encapsulation loop. + * + * Revision 1.26 1999/02/12 21:21:26 rgb + * Move KLIPS_PRINT to ipsec_netlink.h for accessibility. + * + * Revision 1.25 1999/02/11 19:38:27 rgb + * More clean-up. + * Add sanity checking for skb_copy_expand() to prevent kernel panics on + * skb_put() values out of range. + * Fix head/tailroom calculation causing skb_put() out-of-range values. + * Fix return values to prevent 'nonatomic alloc_skb' warnings. + * Allocate new skb iff needed. + * Added more debug statements. + * Make headroom depend on structure, not hard-coded values. + * + * Revision 1.24 1999/02/10 23:20:33 rgb + * Shut up annoying 'statement has no effect' compiler warnings with + * debugging compiled out. + * + * Revision 1.23 1999/02/10 22:36:30 rgb + * Clean-up obsolete, unused and messy code. + * Converted most IPSEC_DEBUG statements to KLIPS_PRINT macros. + * Rename ipsec_tunnel_do_xmit to ipsec_tunnel_start_xmit and eliminated + * original ipsec_tunnel_start_xmit. + * Send all packet with different inner and outer destinations directly to + * the attached physical device, rather than back through ip_forward, + * preventing disappearing routes problems. + * Do sanity checking before investing too much CPU in allocating new + * structures. + * Fail on IP header options: We cannot process them yet. + * Add some helpful comments. + * Use virtual device for parameters instead of physical device. + * + * Revision 1.22 1999/02/10 03:03:02 rgb + * Duh. Fixed the TTL bug: forgot to update the checksum. + * + * Revision 1.21 1999/02/09 23:17:53 rgb + * Add structure members to ipsec_print_ip debug function. + * Temporarily fix TTL bug preventing tunnel mode from functioning. + * + * Revision 1.20 1999/02/09 00:14:25 rgb + * Add KLIPSPRINT macro. (Not used yet, though.) + * Delete old ip_tunnel code (BADCODE). + * Decrement TTL in outgoing packet. + * Set TTL on new IPIP_TUNNEL to default, not existing packet TTL. + * Delete ethernet only feature and fix hard-coded hard_header_len. + * + * Revision 1.19 1999/01/29 17:56:22 rgb + * 64-bit re-fix submitted by Peter Onion. + * + * Revision 1.18 1999/01/28 22:43:24 rgb + * Fixed bug in ipsec_print_ip that caused an OOPS, found by P.Onion. + * + * Revision 1.17 1999/01/26 02:08:16 rgb + * Removed CONFIG_IPSEC_ALGO_SWITCH macro. + * Removed dead code. + * + * Revision 1.16 1999/01/22 06:25:26 rgb + * Cruft clean-out. + * Added algorithm switch code. + * 64-bit clean-up. + * Passthrough on IPIP protocol, spi 0x0 fix. + * Enhanced debugging. + * + * Revision 1.15 1998/12/01 13:22:04 rgb + * Added support for debug printing of version info. + * + * Revision 1.14 1998/11/30 13:22:55 rgb + * Rationalised all the klips kernel file headers. They are much shorter + * now and won't conflict under RH5.2. + * + * Revision 1.13 1998/11/17 21:13:52 rgb + * Put IKE port bypass debug output in user-switched debug statements. + * + * Revision 1.12 1998/11/13 13:20:25 rgb + * Fixed ntohs bug in udp/500 hole for IKE. + * + * Revision 1.11 1998/11/10 08:01:19 rgb + * Kill tcp/500 hole, keep udp/500 hole. + * + * Revision 1.10 1998/11/09 21:29:26 rgb + * If no eroute is found, discard packet and incr. tx_error. + * + * Revision 1.9 1998/10/31 06:50:00 rgb + * Add tcp/udp/500 bypass. + * Fixed up comments in #endif directives. + * + * Revision 1.8 1998/10/27 00:34:31 rgb + * Reformat debug output of IP headers. + * Newlines added before calls to ipsec_print_ip. + * + * Revision 1.7 1998/10/19 14:44:28 rgb + * Added inclusion of freeswan.h. + * sa_id structure implemented and used: now includes protocol. + * + * Revision 1.6 1998/10/09 04:31:35 rgb + * Added 'klips_debug' prefix to all klips printk debug statements. + * + * Revision 1.5 1998/08/28 03:09:51 rgb + * Prevent kernel log spam with default route through ipsec. + * + * Revision 1.4 1998/08/05 22:23:09 rgb + * Change setdev return code to ENXIO for a non-existant physical device. + * + * Revision 1.3 1998/07/29 20:41:11 rgb + * Add ipsec_tunnel_clear to clear all tunnel attachments. + * + * Revision 1.2 1998/06/25 20:00:33 rgb + * Clean up #endif comments. + * Rename dev_ipsec to dev_ipsec0 for consistency. + * Document ipsec device fields. + * Make ipsec_tunnel_probe visible from rest of kernel for static linking. + * Get debugging report for *every* ipsec device initialisation. + * Comment out redundant code. + * + * Revision 1.1 1998/06/18 21:27:50 henry + * move sources from klips/src to klips/net/ipsec, to keep stupid + * kernel-build scripts happier in the presence of symlinks + * + * Revision 1.8 1998/06/14 23:49:40 rgb + * Clarify version reporting on module loading. + * + * Revision 1.7 1998/05/27 23:19:20 rgb + * Added version reporting. + * + * Revision 1.6 1998/05/18 21:56:23 rgb + * Clean up for numerical consistency of output and cleaning up debug code. + * + * Revision 1.5 1998/05/12 02:44:23 rgb + * Clarifying 'no e-route to host' message. + * + * Revision 1.4 1998/04/30 15:34:35 rgb + * Enclosed most remaining debugging statements in #ifdef's to make it quieter. + * + * Revision 1.3 1998/04/21 21:28:54 rgb + * Rearrange debug switches to change on the fly debug output from user + * space. Only kernel changes checked in at this time. radij.c was also + * changed to temporarily remove buggy debugging code in rj_delete causing + * an OOPS and hence, netlink device open errors. + * + * Revision 1.2 1998/04/12 22:03:24 rgb + * Updated ESP-3DES-HMAC-MD5-96, + * ESP-DES-HMAC-MD5-96, + * AH-HMAC-MD5-96, + * AH-HMAC-SHA1-96 since Henry started freeswan cvs repository + * from old standards (RFC182[5-9] to new (as of March 1998) drafts. + * + * Fixed eroute references in /proc/net/ipsec*. + * + * Started to patch module unloading memory leaks in ipsec_netlink and + * radij tree unloading. + * + * Revision 1.1 1998/04/09 03:06:12 henry + * sources moved up from linux/net/ipsec + * + * Revision 1.1.1.1 1998/04/08 05:35:04 henry + * RGB's ipsec-0.8pre2.tar.gz ipsec-0.8 + * + * Revision 0.5 1997/06/03 04:24:48 ji + * Added transport mode. + * Changed the way routing is done. + * Lots of bug fixes. + * + * Revision 0.4 1997/01/15 01:28:15 ji + * No changes. + * + * Revision 0.3 1996/11/20 14:39:04 ji + * Minor cleanups. + * Rationalized debugging code. + * + * Revision 0.2 1996/11/02 00:18:33 ji + * First limited release. + * + * Local Variables: + * c-style: linux + * End: + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ipsec_xform.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,360 @@ +/* + * Common routines for IPSEC transformations. + * Copyright (C) 1996, 1997 John Ioannidis. + * Copyright (C) 1998, 1999, 2000, 2001 Richard Guy Briggs. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: ipsec_xform.c,v 1.65.2.1 2006/10/06 21:39:26 paul Exp $ + */ + +#ifndef AUTOCONF_INCLUDED +#include +#endif +#include +#include /* printk() */ + +#include "freeswan/ipsec_param.h" + +#ifdef MALLOC_SLAB +# include /* kmalloc() */ +#else /* MALLOC_SLAB */ +# include /* kmalloc() */ +#endif /* MALLOC_SLAB */ +#include /* error codes */ +#include /* size_t */ +#include /* mark_bh */ + +#include /* struct device, and other headers */ +#include /* eth_type_trans */ +#include /* struct iphdr */ +#include +#include /* get_random_bytes() */ +#include +#ifdef SPINLOCK +# ifdef SPINLOCK_23 +# include /* *lock* */ +# else /* SPINLOCK_23 */ +# include /* *lock* */ +# endif /* SPINLOCK_23 */ +#endif /* SPINLOCK */ + +#include + +#include "freeswan/radij.h" +#include "freeswan/ipsec_encap.h" +#include "freeswan/ipsec_radij.h" +#include "freeswan/ipsec_xform.h" +#include "freeswan/ipsec_ipe4.h" +#include "freeswan/ipsec_ah.h" +#include "freeswan/ipsec_esp.h" + +#include +#include + +#ifdef CONFIG_KLIPS_DEBUG +int debug_xform = 0; +#endif /* CONFIG_KLIPS_DEBUG */ + +#ifdef SPINLOCK +spinlock_t tdb_lock = SPIN_LOCK_UNLOCKED; +#else /* SPINLOCK */ +spinlock_t tdb_lock; +#endif /* SPINLOCK */ + +/* + * $Log: ipsec_xform.c,v $ + * Revision 1.65.2.1 2006/10/06 21:39:26 paul + * Fix for 2.6.18+ only include linux/config.h if AUTOCONF_INCLUDED is not + * set. This is defined through autoconf.h which is included through the + * linux kernel build macros. + * + * Revision 1.65 2005/04/29 05:10:22 mcr + * removed from extraenous includes to make unit testing easier. + * + * Revision 1.64 2004/07/10 19:11:18 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.63 2003/10/31 02:27:55 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.62.30.1 2003/10/29 01:30:41 mcr + * elimited "struct sa_id". + * + * Revision 1.62 2002/05/14 02:34:21 rgb + * Delete stale code. + * + * Revision 1.61 2002/04/24 07:55:32 mcr + * #include patches and Makefiles for post-reorg compilation. + * + * Revision 1.60 2002/04/24 07:36:33 mcr + * Moved from ./klips/net/ipsec/ipsec_xform.c,v + * + * Revision 1.59 2002/03/29 15:01:36 rgb + * Delete decommissioned code. + * + * Revision 1.58 2002/01/29 17:17:57 mcr + * moved include of ipsec_param.h to after include of linux/kernel.h + * otherwise, it seems that some option that is set in ipsec_param.h + * screws up something subtle in the include path to kernel.h, and + * it complains on the snprintf() prototype. + * + * Revision 1.57 2002/01/29 04:00:53 mcr + * more excise of kversions.h header. + * + * Revision 1.56 2001/11/27 05:17:22 mcr + * turn off the worst of the per-packet debugging. + * + * Revision 1.55 2001/11/26 09:23:50 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.54 2001/10/18 04:45:21 rgb + * 2.4.9 kernel deprecates linux/malloc.h in favour of linux/slab.h, + * lib/freeswan.h version macros moved to lib/kversions.h. + * Other compiler directive cleanups. + * + * Revision 1.53 2001/09/08 21:13:34 rgb + * Added pfkey ident extension support for ISAKMPd. (NetCelo) + * + * Revision 1.52 2001/06/14 19:35:11 rgb + * Update copyright date. + * + * Revision 1.51 2001/05/30 08:14:03 rgb + * Removed vestiges of esp-null transforms. + * + * Revision 1.50 2001/05/03 19:43:18 rgb + * Initialise error return variable. + * Update SENDERR macro. + * Fix sign of error return code for ipsec_tdbcleanup(). + * Use more appropriate return code for ipsec_tdbwipe(). + * + * Revision 1.49 2001/04/19 18:56:17 rgb + * Fixed tdb table locking comments. + * + * Revision 1.48 2001/02/27 22:24:55 rgb + * Re-formatting debug output (line-splitting, joining, 1arg/line). + * Check for satoa() return codes. + * + * Revision 1.47 2000/11/06 04:32:08 rgb + * Ditched spin_lock_irqsave in favour of spin_lock_bh. + * + * Revision 1.46 2000/09/20 16:21:57 rgb + * Cleaned up ident string alloc/free. + * + * Revision 1.45 2000/09/08 19:16:51 rgb + * Change references from DEBUG_IPSEC to CONFIG_IPSEC_DEBUG. + * Removed all references to CONFIG_IPSEC_PFKEYv2. + * + * Revision 1.44 2000/08/30 05:29:04 rgb + * Compiler-define out no longer used tdb_init() in ipsec_xform.c. + * + * Revision 1.43 2000/08/18 21:30:41 rgb + * Purged all tdb_spi, tdb_proto and tdb_dst macros. They are unclear. + * + * Revision 1.42 2000/08/01 14:51:51 rgb + * Removed _all_ remaining traces of DES. + * + * Revision 1.41 2000/07/28 14:58:31 rgb + * Changed kfree_s to kfree, eliminating extra arg to fix 2.4.0-test5. + * + * Revision 1.40 2000/06/28 05:50:11 rgb + * Actually set iv_bits. + * + * Revision 1.39 2000/05/10 23:11:09 rgb + * Added netlink debugging output. + * Added a cast to quiet down the ntohl bug. + * + * Revision 1.38 2000/05/10 19:18:42 rgb + * Cast output of ntohl so that the broken prototype doesn't make our + * compile noisy. + * + * Revision 1.37 2000/03/16 14:04:59 rgb + * Hardwired CONFIG_IPSEC_PFKEYv2 on. + * + * Revision 1.36 2000/01/26 10:11:28 rgb + * Fixed spacing in error text causing run-in words. + * + * Revision 1.35 2000/01/21 06:17:16 rgb + * Tidied up compiler directive indentation for readability. + * Added ictx,octx vars for simplification.(kravietz) + * Added macros for HMAC padding magic numbers.(kravietz) + * Fixed missing key length reporting bug. + * Fixed bug in tdbwipe to return immediately on NULL tdbp passed in. + * + * Revision 1.34 1999/12/08 00:04:19 rgb + * Fixed SA direction overwriting bug for netlink users. + * + * Revision 1.33 1999/12/01 22:16:44 rgb + * Minor formatting changes in ESP MD5 initialisation. + * + * Revision 1.32 1999/11/25 09:06:36 rgb + * Fixed error return messages, should be returning negative numbers. + * Implemented SENDERR macro for propagating error codes. + * Added debug message and separate error code for algorithms not compiled + * in. + * + * Revision 1.31 1999/11/23 23:06:26 rgb + * Sort out pfkey and freeswan headers, putting them in a library path. + * + * Revision 1.30 1999/11/18 04:09:20 rgb + * Replaced all kernel version macros to shorter, readable form. + * + * Revision 1.29 1999/11/17 15:53:40 rgb + * Changed all occurrences of #include "../../../lib/freeswan.h" + * to #include which works due to -Ilibfreeswan in the + * klips/net/ipsec/Makefile. + * + * Revision 1.28 1999/10/18 20:04:01 rgb + * Clean-out unused cruft. + * + * Revision 1.27 1999/10/03 19:01:03 rgb + * Spinlock support for 2.3.xx and 2.0.xx kernels. + * + * Revision 1.26 1999/10/01 16:22:24 rgb + * Switch from assignment init. to functional init. of spinlocks. + * + * Revision 1.25 1999/10/01 15:44:54 rgb + * Move spinlock header include to 2.1> scope. + * + * Revision 1.24 1999/10/01 00:03:46 rgb + * Added tdb structure locking. + * Minor formatting changes. + * Add function to initialize tdb hash table. + * + * Revision 1.23 1999/05/25 22:42:12 rgb + * Add deltdbchain() debugging. + * + * Revision 1.22 1999/05/25 21:24:31 rgb + * Add debugging statements to deltdbchain(). + * + * Revision 1.21 1999/05/25 03:51:48 rgb + * Refix error return code. + * + * Revision 1.20 1999/05/25 03:34:07 rgb + * Fix error return for flush. + * + * Revision 1.19 1999/05/09 03:25:37 rgb + * Fix bug introduced by 2.2 quick-and-dirty patch. + * + * Revision 1.18 1999/05/05 22:02:32 rgb + * Add a quick and dirty port to 2.2 kernels by Marc Boucher . + * + * Revision 1.17 1999/04/29 15:20:16 rgb + * Change gettdb parameter to a pointer to reduce stack loading and + * facilitate parameter sanity checking. + * Add sanity checking for null pointer arguments. + * Add debugging instrumentation. + * Add function deltdbchain() which will take care of unlinking, + * zeroing and deleting a chain of tdbs. + * Add a parameter to tdbcleanup to be able to delete a class of SAs. + * tdbwipe now actually zeroes the tdb as well as any of its pointed + * structures. + * + * Revision 1.16 1999/04/16 15:36:29 rgb + * Fix cut-and-paste error causing a memory leak in IPIP TDB freeing. + * + * Revision 1.15 1999/04/11 00:29:01 henry + * GPL boilerplate + * + * Revision 1.14 1999/04/06 04:54:28 rgb + * Fix/Add RCSID Id: and Log: bits to make PHMDs happy. This includes + * patch shell fixes. + * + * Revision 1.13 1999/02/19 18:23:01 rgb + * Nix debug off compile warning. + * + * Revision 1.12 1999/02/17 16:52:16 rgb + * Consolidate satoa()s for space and speed efficiency. + * Convert DEBUG_IPSEC to KLIPS_PRINT + * Clean out unused cruft. + * Ditch NET_IPIP dependancy. + * Loop for 3des key setting. + * + * Revision 1.11 1999/01/26 02:09:05 rgb + * Remove ah/esp/IPIP switching on include files. + * Removed CONFIG_IPSEC_ALGO_SWITCH macro. + * Removed dead code. + * Clean up debug code when switched off. + * Remove references to INET_GET_PROTOCOL. + * Added code exclusion macros to reduce code from unused algorithms. + * + * Revision 1.10 1999/01/22 06:28:55 rgb + * Cruft clean-out. + * Put random IV generation in kernel. + * Added algorithm switch code. + * Enhanced debugging. + * 64-bit clean-up. + * + * Revision 1.9 1998/11/30 13:22:55 rgb + * Rationalised all the klips kernel file headers. They are much shorter + * now and won't conflict under RH5.2. + * + * Revision 1.8 1998/11/25 04:59:06 rgb + * Add conditionals for no IPIP tunnel code. + * Delete commented out code. + * + * Revision 1.7 1998/10/31 06:50:41 rgb + * Convert xform ASCII names to no spaces. + * Fixed up comments in #endif directives. + * + * Revision 1.6 1998/10/19 14:44:28 rgb + * Added inclusion of freeswan.h. + * sa_id structure implemented and used: now includes protocol. + * + * Revision 1.5 1998/10/09 04:32:19 rgb + * Added 'klips_debug' prefix to all klips printk debug statements. + * + * Revision 1.4 1998/08/12 00:11:31 rgb + * Added new xform functions to the xform table. + * Fixed minor debug output spelling error. + * + * Revision 1.3 1998/07/09 17:45:31 rgb + * Clarify algorithm not available message. + * + * Revision 1.2 1998/06/23 03:00:51 rgb + * Check for presence of IPIP protocol if it is setup one way (we don't + * know what has been set up the other way and can only assume it will be + * symmetrical with the exception of keys). + * + * Revision 1.1 1998/06/18 21:27:51 henry + * move sources from klips/src to klips/net/ipsec, to keep stupid + * kernel-build scripts happier in the presence of symlinks + * + * Revision 1.3 1998/06/11 05:54:59 rgb + * Added transform version string pointer to xformsw initialisations. + * + * Revision 1.2 1998/04/21 21:28:57 rgb + * Rearrange debug switches to change on the fly debug output from user + * space. Only kernel changes checked in at this time. radij.c was also + * changed to temporarily remove buggy debugging code in rj_delete causing + * an OOPS and hence, netlink device open errors. + * + * Revision 1.1 1998/04/09 03:06:13 henry + * sources moved up from linux/net/ipsec + * + * Revision 1.1.1.1 1998/04/08 05:35:02 henry + * RGB's ipsec-0.8pre2.tar.gz ipsec-0.8 + * + * Revision 0.5 1997/06/03 04:24:48 ji + * Added ESP-3DES-MD5-96 + * + * Revision 0.4 1997/01/15 01:28:15 ji + * Added new transforms. + * + * Revision 0.3 1996/11/20 14:39:04 ji + * Minor cleanups. + * Rationalized debugging code. + * + * Revision 0.2 1996/11/02 00:18:33 ji + * First limited release. + * + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ipsec_xmit.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,1855 @@ +/* + * IPSEC Transmit code. + * Copyright (C) 1996, 1997 John Ioannidis. + * Copyright (C) 1998-2003 Richard Guy Briggs. + * Copyright (C) 2004-2005 Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +char ipsec_xmit_c_version[] = "RCSID $Id: ipsec_xmit.c,v 1.20.2.9 2007/07/06 17:18:43 paul Exp $"; + +#define __NO_VERSION__ +#include +#ifndef AUTOCONF_INCLUDED +#include +#endif /* for CONFIG_IP_FORWARD */ +#include +#include /* printk() */ + +#include "openswan/ipsec_param.h" + +#ifdef MALLOC_SLAB +# include /* kmalloc() */ +#else /* MALLOC_SLAB */ +# include /* kmalloc() */ +#endif /* MALLOC_SLAB */ +#include /* error codes */ +#include /* size_t */ +#include /* mark_bh */ + +#include /* struct device, struct net_device_stats, dev_queue_xmit() and other headers */ +#include /* eth_type_trans */ +#include /* struct iphdr */ +#include /* struct tcphdr */ +#include /* struct udphdr */ +#include +#include +#include +#include +#ifdef NET_21 +# define MSS_HACK_ /* experimental */ +# include +# include +# define proto_priv cb +#endif /* NET_21 */ + +#include /* icmp_send() */ +#include +#ifdef NETDEV_23 +# include +#endif /* NETDEV_23 */ + +#include +#ifdef MSS_HACK +# include /* TCP options */ +#endif /* MSS_HACK */ + +#include "openswan/radij.h" +#include "openswan/ipsec_life.h" +#include "openswan/ipsec_xform.h" +#include "openswan/ipsec_eroute.h" +#include "openswan/ipsec_encap.h" +#include "openswan/ipsec_radij.h" +#include "openswan/ipsec_xmit.h" +#include "openswan/ipsec_sa.h" +#include "openswan/ipsec_tunnel.h" +#include "openswan/ipsec_ipe4.h" +#include "openswan/ipsec_ah.h" +#include "openswan/ipsec_esp.h" + +#ifdef CONFIG_KLIPS_IPCOMP +#include "openswan/ipcomp.h" +#endif /* CONFIG_KLIPS_IPCOMP */ + +#include +#include + +#include "openswan/ipsec_proto.h" +#include "openswan/ipsec_alg.h" + + +/* + * Stupid kernel API differences in APIs. Not only do some + * kernels not have ip_select_ident, but some have differing APIs, + * and SuSE has one with one parameter, but no way of checking to + * see what is really what. + */ + +#ifdef SUSE_LINUX_2_4_19_IS_STUPID +#define KLIPS_IP_SELECT_IDENT(iph, skb) ip_select_ident(iph) +#else + +/* simplest case, nothing */ +#if !defined(IP_SELECT_IDENT) +#define KLIPS_IP_SELECT_IDENT(iph, skb) do { iph->id = htons(ip_id_count++); } while(0) +#endif + +/* kernels > 2.3.37-ish */ +#if defined(IP_SELECT_IDENT) && !defined(IP_SELECT_IDENT_NEW) +#define KLIPS_IP_SELECT_IDENT(iph, skb) ip_select_ident(iph, skb->dst) +#endif + +/* kernels > 2.4.2 */ +#if defined(IP_SELECT_IDENT) && defined(IP_SELECT_IDENT_NEW) +#define KLIPS_IP_SELECT_IDENT(iph, skb) ip_select_ident(iph, skb->dst, NULL) +#endif + +#endif /* SUSE_LINUX_2_4_19_IS_STUPID */ + + + +#if defined(CONFIG_KLIPS_AH) +static __u32 zeroes[64]; +#endif + +#ifdef CONFIG_KLIPS_DEBUG +int sysctl_ipsec_debug_verbose = 0; +#endif /* CONFIG_KLIPS_DEBUG */ + +int ipsec_xmit_trap_count = 0; +int ipsec_xmit_trap_sendcount = 0; + +int sysctl_ipsec_icmp = 0; +int sysctl_ipsec_tos = 0; + +#ifdef CONFIG_KLIPS_DEBUG +#define dmp(_x,_y,_z) if(debug_tunnel) ipsec_dmp_block(_x,_y,_z) +#else /* CONFIG_KLIPS_DEBUG */ +#define dmp(_x, _y, _z) +#endif /* CONFIG_KLIPS_DEBUG */ + + +#if !defined(SKB_COPY_EXPAND) || defined(KLIPS_UNIT_TESTS) +/* + * This is mostly skbuff.c:skb_copy(). + */ +struct sk_buff * +skb_copy_expand(const struct sk_buff *skb, int headroom, + int tailroom, int priority) +{ + struct sk_buff *n; + unsigned long offset; + + /* + * Do sanity checking + */ + if((headroom < 0) || (tailroom < 0) || ((headroom+tailroom) < 0)) { + printk(KERN_WARNING + "klips_error:skb_copy_expand: " + "Illegal negative head,tailroom %d,%d\n", + headroom, + tailroom); + return NULL; + } + /* + * Allocate the copy buffer + */ + +#ifndef NET_21 + IS_SKB(skb); +#endif /* !NET_21 */ + + + n=alloc_skb(skb->end - skb->head + headroom + tailroom, priority); + + KLIPS_PRINT(debug_tunnel & DB_TN_CROUT, + "klips_debug:skb_copy_expand: " + "allocating %d bytes, head=0p%p data=0p%p tail=0p%p end=0p%p end-head=%d tail-data=%d\n", + skb->end - skb->head + headroom + tailroom, + skb->head, + skb->data, + skb->tail, + skb->end, + skb->end - skb->head, + skb->tail - skb->data); + + if(n==NULL) + return NULL; + + /* + * Shift between the two data areas in bytes + */ + + /* Set the data pointer */ + skb_reserve(n,skb->data-skb->head+headroom); + /* Set the tail pointer and length */ + if(skb_tailroom(n) < skb->len) { + printk(KERN_WARNING "klips_error:skb_copy_expand: " + "tried to skb_put %ld, %d available. This should never happen, please report.\n", + (unsigned long int)skb->len, + skb_tailroom(n)); + ipsec_kfree_skb(n); + return NULL; + } + skb_put(n,skb->len); + + offset=n->head + headroom - skb->head; + + /* Copy the bytes */ + memcpy(n->head + headroom, skb->head,skb->end-skb->head); +#ifdef NET_21 + n->csum=skb->csum; + n->priority=skb->priority; + n->dst=dst_clone(skb->dst); + if(skb->nh.raw) + n->nh.raw=skb->nh.raw+offset; +#ifndef NETDEV_23 + n->is_clone=0; +#endif /* NETDEV_23 */ + atomic_set(&n->users, 1); + n->destructor = NULL; +#ifdef HAVE_SOCK_SECURITY + n->security=skb->security; +#endif +#else /* NET_21 */ + n->link3=NULL; + n->when=skb->when; + if(skb->ip_hdr) + n->ip_hdr=(struct iphdr *)(((char *)skb->ip_hdr)+offset); + n->saddr=skb->saddr; + n->daddr=skb->daddr; + n->raddr=skb->raddr; + n->seq=skb->seq; + n->end_seq=skb->end_seq; + n->ack_seq=skb->ack_seq; + n->acked=skb->acked; + n->free=1; + n->arp=skb->arp; + n->tries=0; + n->lock=0; + n->users=0; +#endif /* NET_21 */ + n->protocol=skb->protocol; + n->list=NULL; + n->sk=NULL; + n->dev=skb->dev; + if(skb->h.raw) + n->h.raw=skb->h.raw+offset; + if(skb->mac.raw) + n->mac.raw=skb->mac.raw+offset; + memcpy(n->proto_priv, skb->proto_priv, sizeof(skb->proto_priv)); +#ifndef NETDEV_23 + n->used=skb->used; +#endif /* !NETDEV_23 */ + n->pkt_type=skb->pkt_type; + n->stamp=skb->stamp; + +#ifndef NET_21 + IS_SKB(n); +#endif /* !NET_21 */ + return n; +} +#endif /* !SKB_COPY_EXPAND */ + +#ifdef CONFIG_KLIPS_DEBUG +void +ipsec_print_ip(struct iphdr *ip) +{ + char buf[ADDRTOA_BUF]; + + printk(KERN_INFO "klips_debug: IP:"); + printk(" ihl:%d", ip->ihl << 2); + printk(" ver:%d", ip->version); + printk(" tos:%d", ip->tos); + printk(" tlen:%d", ntohs(ip->tot_len)); + printk(" id:%d", ntohs(ip->id)); + printk(" %s%s%sfrag_off:%d", + ip->frag_off & __constant_htons(IP_CE) ? "CE " : "", + ip->frag_off & __constant_htons(IP_DF) ? "DF " : "", + ip->frag_off & __constant_htons(IP_MF) ? "MF " : "", + (ntohs(ip->frag_off) & IP_OFFSET) << 3); + printk(" ttl:%d", ip->ttl); + printk(" proto:%d", ip->protocol); + if(ip->protocol == IPPROTO_UDP) + printk(" (UDP)"); + if(ip->protocol == IPPROTO_TCP) + printk(" (TCP)"); + if(ip->protocol == IPPROTO_ICMP) + printk(" (ICMP)"); + if(ip->protocol == IPPROTO_ESP) + printk(" (ESP)"); + if(ip->protocol == IPPROTO_AH) + printk(" (AH)"); + if(ip->protocol == IPPROTO_COMP) + printk(" (COMP)"); + printk(" chk:%d", ntohs(ip->check)); + addrtoa(*((struct in_addr*)(&ip->saddr)), 0, buf, sizeof(buf)); + printk(" saddr:%s", buf); + if(ip->protocol == IPPROTO_UDP) + printk(":%d", + ntohs(((struct udphdr*)((caddr_t)ip + (ip->ihl << 2)))->source)); + if(ip->protocol == IPPROTO_TCP) + printk(":%d", + ntohs(((struct tcphdr*)((caddr_t)ip + (ip->ihl << 2)))->source)); + addrtoa(*((struct in_addr*)(&ip->daddr)), 0, buf, sizeof(buf)); + printk(" daddr:%s", buf); + if(ip->protocol == IPPROTO_UDP) + printk(":%d", + ntohs(((struct udphdr*)((caddr_t)ip + (ip->ihl << 2)))->dest)); + if(ip->protocol == IPPROTO_TCP) + printk(":%d", + ntohs(((struct tcphdr*)((caddr_t)ip + (ip->ihl << 2)))->dest)); + if(ip->protocol == IPPROTO_ICMP) + printk(" type:code=%d:%d", + ((struct icmphdr*)((caddr_t)ip + (ip->ihl << 2)))->type, + ((struct icmphdr*)((caddr_t)ip + (ip->ihl << 2)))->code); + printk("\n"); + + if(sysctl_ipsec_debug_verbose) { + __u8 *c; + int len = ntohs(ip->tot_len) - ip->ihl*4; + + c = ((__u8*)ip) + ip->ihl*4; + ipsec_dmp_block("ip_print", c, len); + } +} +#endif /* CONFIG_KLIPS_DEBUG */ + +#ifdef MSS_HACK +/* + * Issues: + * 1) Fragments arriving in the tunnel should probably be rejected. + * 2) How does this affect syncookies, mss_cache, dst cache ? + * 3) Path MTU discovery handling needs to be reviewed. For example, + * if we receive an ICMP 'packet too big' message from an intermediate + * router specifying it's next hop MTU, our stack may process this and + * adjust the MSS without taking our AH/ESP overheads into account. + */ + + +/* + * Recaclulate checksum using differences between changed datum, + * borrowed from netfilter. + */ +DEBUG_NO_STATIC u_int16_t +ipsec_fast_csum(u_int32_t oldvalinv, u_int32_t newval, u_int16_t oldcheck) +{ + u_int32_t diffs[] = { oldvalinv, newval }; + return csum_fold(csum_partial((char *)diffs, sizeof(diffs), + oldcheck^0xFFFF)); +} + +/* + * Determine effective MSS. + * + * Note that we assume that there is always an MSS option for our own + * SYN segments, which is mentioned in tcp_syn_build_options(), kernel 2.2.x. + * This could change, and we should probably parse TCP options instead. + * + */ +DEBUG_NO_STATIC u_int8_t +ipsec_adjust_mss(struct sk_buff *skb, struct tcphdr *tcph, u_int16_t mtu) +{ + u_int16_t oldmss, newmss; + u_int32_t *mssp; + struct sock *sk = skb->sk; + + newmss = tcp_sync_mss(sk, mtu); + printk(KERN_INFO "klips: setting mss to %u\n", newmss); + mssp = (u_int32_t *)tcph + sizeof(struct tcphdr) / sizeof(u_int32_t); + oldmss = ntohl(*mssp) & 0x0000FFFF; + *mssp = htonl((TCPOPT_MSS << 24) | (TCPOLEN_MSS << 16) | newmss); + tcph->check = ipsec_fast_csum(htons(~oldmss), + htons(newmss), tcph->check); + return 1; +} +#endif /* MSS_HACK */ + +/* + * Sanity checks + */ +enum ipsec_xmit_value +ipsec_xmit_sanity_check_dev(struct ipsec_xmit_state *ixs) +{ + + if (ixs->dev == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_error:ipsec_xmit_sanity_check_dev: " + "No device associated with skb!\n" ); + return IPSEC_XMIT_NODEV; + } + + ixs->prv = ixs->dev->priv; + if (ixs->prv == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_error:ipsec_xmit_sanity_check_dev: " + "Device has no private structure!\n" ); + return IPSEC_XMIT_NOPRIVDEV; + } + + ixs->physdev = ixs->prv->dev; + if (ixs->physdev == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_error:ipsec_xmit_sanity_check_dev: " + "Device is not attached to physical device!\n" ); + return IPSEC_XMIT_NOPHYSDEV; + } + + ixs->physmtu = ixs->physdev->mtu; + ixs->cur_mtu = ixs->physdev->mtu; + ixs->stats = (struct net_device_stats *) &(ixs->prv->mystats); + + return IPSEC_XMIT_OK; +} + +enum ipsec_xmit_value +ipsec_xmit_sanity_check_skb(struct ipsec_xmit_state *ixs) +{ + /* + * Return if there is nothing to do. (Does this ever happen?) XXX + */ + if (ixs->skb == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_error:ipsec_xmit_sanity_check_skb: " + "Nothing to do!\n" ); + return IPSEC_XMIT_NOSKB; + } + + /* if skb was cloned (most likely due to a packet sniffer such as + tcpdump being momentarily attached to the interface), make + a copy of our own to modify */ + if(skb_cloned(ixs->skb)) { + if +#ifdef SKB_COW_NEW + (skb_cow(ixs->skb, skb_headroom(ixs->skb)) != 0) +#else /* SKB_COW_NEW */ + ((ixs->skb = skb_cow(ixs->skb, skb_headroom(ixs->skb))) == NULL) +#endif /* SKB_COW_NEW */ + { + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_error:ipsec_xmit_sanity_check_skb: " + "skb_cow failed to allocate buffer, dropping.\n" ); + ixs->stats->tx_dropped++; + return IPSEC_XMIT_ERRSKBALLOC; + } + } + + ixs->iph = ixs->skb->nh.iph; + + /* sanity check for IP version as we can't handle IPv6 right now */ + if (ixs->iph->version != 4) { + KLIPS_PRINT(debug_tunnel, + "klips_debug:ipsec_xmit_sanity_check_skb: " + "found IP Version %d but cannot process other IP versions than v4.\n", + ixs->iph->version); /* XXX */ + ixs->stats->tx_dropped++; + return IPSEC_XMIT_NOIPV6; + } + +#if IPSEC_DISALLOW_IPOPTIONS + if ((ixs->iph->ihl << 2) != sizeof (struct iphdr)) { + KLIPS_PRINT(debug_tunnel, + "klips_debug:ipsec_xmit_sanity_check_skb: " + "cannot process IP header options yet. May be mal-formed packet.\n"); /* XXX */ + ixs->stats->tx_dropped++; + return IPSEC_XMIT_NOIPOPTIONS; + } +#endif /* IPSEC_DISALLOW_IPOPTIONS */ + +#ifndef NET_21 + if (ixs->iph->ttl <= 0) { + /* Tell the sender its packet died... */ + ICMP_SEND(ixs->skb, ICMP_TIME_EXCEEDED, ICMP_EXC_TTL, 0, ixs->physdev); + + KLIPS_PRINT(debug_tunnel, "klips_debug:ipsec_xmit_sanity_check_skb: " + "TTL=0, too many hops!\n"); + ixs->stats->tx_dropped++; + return IPSEC_XMIT_TTLEXPIRED; + } +#endif /* !NET_21 */ + + return IPSEC_XMIT_OK; +} + +enum ipsec_xmit_value +ipsec_xmit_encap_once(struct ipsec_xmit_state *ixs) +{ +#ifdef CONFIG_KLIPS_ESP + struct esphdr *espp; + unsigned char *idat, *pad; + int authlen = 0, padlen = 0, i; +#endif /* !CONFIG_KLIPS_ESP */ +#ifdef CONFIG_KLIPS_AH + struct iphdr ipo; + struct ahhdr *ahp; +#endif /* CONFIG_KLIPS_AH */ +#if defined(CONFIG_KLIPS_AUTH_HMAC_MD5) || defined(CONFIG_KLIPS_AUTH_HMAC_SHA1) + union { +#ifdef CONFIG_KLIPS_AUTH_HMAC_MD5 + MD5_CTX md5; +#endif /* CONFIG_KLIPS_AUTH_HMAC_MD5 */ +#ifdef CONFIG_KLIPS_AUTH_HMAC_SHA1 + SHA1_CTX sha1; +#endif /* CONFIG_KLIPS_AUTH_HMAC_SHA1 */ + } tctx; + __u8 hash[AH_AMAX]; +#endif /* defined(CONFIG_KLIPS_AUTH_HMAC_MD5) || defined(CONFIG_KLIPS_AUTH_HMACn_SHA1) */ + int headroom = 0, tailroom = 0, ilen = 0, len = 0; + unsigned char *dat; + int blocksize = 8; /* XXX: should be inside ixs --jjo */ + struct ipsec_alg_enc *ixt_e = NULL; + struct ipsec_alg_auth *ixt_a = NULL; + + ixs->iphlen = ixs->iph->ihl << 2; + ixs->pyldsz = ntohs(ixs->iph->tot_len) - ixs->iphlen; + ixs->sa_len = satot(&ixs->ipsp->ips_said, 0, ixs->sa_txt, SATOT_BUF); + KLIPS_PRINT(debug_tunnel & DB_TN_OXFS, + "klips_debug:ipsec_xmit_encap_once: " + "calling output for <%s%s%s>, SA:%s\n", + IPS_XFORM_NAME(ixs->ipsp), + ixs->sa_len ? ixs->sa_txt : " (error)"); + + switch(ixs->ipsp->ips_said.proto) { +#ifdef CONFIG_KLIPS_AH + case IPPROTO_AH: + headroom += sizeof(struct ahhdr); + break; +#endif /* CONFIG_KLIPS_AH */ + +#ifdef CONFIG_KLIPS_ESP + case IPPROTO_ESP: + ixt_e=ixs->ipsp->ips_alg_enc; + if (ixt_e) { + blocksize = ixt_e->ixt_common.ixt_blocksize; + headroom += ESP_HEADER_LEN + ixt_e->ixt_common.ixt_support.ias_ivlen/8; + } else { + ixs->stats->tx_errors++; + return IPSEC_XMIT_ESP_BADALG; + } + + ixt_a=ixs->ipsp->ips_alg_auth; + if (ixt_a) { + tailroom += AHHMAC_HASHLEN; + authlen = AHHMAC_HASHLEN; + } else + switch(ixs->ipsp->ips_authalg) { +#ifdef CONFIG_KLIPS_AUTH_HMAC_MD5 + case AH_MD5: + authlen = AHHMAC_HASHLEN; + break; +#endif /* CONFIG_KLIPS_AUTH_HMAC_MD5 */ +#ifdef CONFIG_KLIPS_AUTH_HMAC_SHA1 + case AH_SHA: + authlen = AHHMAC_HASHLEN; + break; +#endif /* CONFIG_KLIPS_AUTH_HMAC_SHA1 */ + case AH_NONE: + break; + default: + ixs->stats->tx_errors++; + return IPSEC_XMIT_ESP_BADALG; + } + tailroom += blocksize != 1 ? + ((blocksize - ((ixs->pyldsz + 2) % blocksize)) % blocksize) + 2 : + ((4 - ((ixs->pyldsz + 2) % 4)) % 4) + 2; + tailroom += authlen; + break; +#endif /* CONFIG_KLIPS_ESP */ + +#ifdef CONFIG_KLIPS_IPIP + case IPPROTO_IPIP: + headroom += sizeof(struct iphdr); + ixs->iphlen = sizeof(struct iphdr); + break; +#endif /* !CONFIG_KLIPS_IPIP */ + +#ifdef CONFIG_KLIPS_IPCOMP + case IPPROTO_COMP: + break; +#endif /* CONFIG_KLIPS_IPCOMP */ + + default: + ixs->stats->tx_errors++; + return IPSEC_XMIT_BADPROTO; + } + + KLIPS_PRINT(debug_tunnel & DB_TN_CROUT, + "klips_debug:ipsec_xmit_encap_once: " + "pushing %d bytes, putting %d, proto %d.\n", + headroom, tailroom, ixs->ipsp->ips_said.proto); + if(skb_headroom(ixs->skb) < headroom) { + printk(KERN_WARNING + "klips_error:ipsec_xmit_encap_once: " + "tried to skb_push headroom=%d, %d available. This should never happen, please report.\n", + headroom, skb_headroom(ixs->skb)); + ixs->stats->tx_errors++; + return IPSEC_XMIT_ESP_PUSHPULLERR; + } + + dat = skb_push(ixs->skb, headroom); + ilen = ixs->skb->len - tailroom; + if(skb_tailroom(ixs->skb) < tailroom) { + printk(KERN_WARNING + "klips_error:ipsec_xmit_encap_once: " + "tried to skb_put %d, %d available. This should never happen, please report.\n", + tailroom, skb_tailroom(ixs->skb)); + ixs->stats->tx_errors++; + return IPSEC_XMIT_ESP_PUSHPULLERR; + } + skb_put(ixs->skb, tailroom); + KLIPS_PRINT(debug_tunnel & DB_TN_CROUT, + "klips_debug:ipsec_xmit_encap_once: " + "head,tailroom: %d,%d before xform.\n", + skb_headroom(ixs->skb), skb_tailroom(ixs->skb)); + len = ixs->skb->len; + if(len > 0xfff0) { + printk(KERN_WARNING "klips_error:ipsec_xmit_encap_once: " + "tot_len (%d) > 65520. This should never happen, please report.\n", + len); + ixs->stats->tx_errors++; + return IPSEC_XMIT_BADLEN; + } + memmove((void *)dat, (void *)(dat + headroom), ixs->iphlen); + ixs->iph = (struct iphdr *)dat; + ixs->iph->tot_len = htons(ixs->skb->len); + + switch(ixs->ipsp->ips_said.proto) { +#ifdef CONFIG_KLIPS_ESP + case IPPROTO_ESP: + espp = (struct esphdr *)(dat + ixs->iphlen); + espp->esp_spi = ixs->ipsp->ips_said.spi; + espp->esp_rpl = htonl(++(ixs->ipsp->ips_replaywin_lastseq)); + + if (!ixt_e) { + ixs->stats->tx_errors++; + return IPSEC_XMIT_ESP_BADALG; + } + + idat = dat + ixs->iphlen + headroom; + ilen = len - (ixs->iphlen + headroom + authlen); + + /* Self-describing padding */ + pad = &dat[len - tailroom]; + padlen = tailroom - 2 - authlen; + for (i = 0; i < padlen; i++) { + pad[i] = i + 1; + } + dat[len - authlen - 2] = padlen; + + dat[len - authlen - 1] = ixs->iph->protocol; + ixs->iph->protocol = IPPROTO_ESP; +#ifdef CONFIG_KLIPS_DEBUG + if(debug_tunnel & DB_TN_ENCAP) { + dmp("pre-encrypt", dat, len); + } +#endif + + /* + * Do all operations here: + * copy IV->ESP, encrypt, update ips IV + * + */ + { + int ret; + memcpy(espp->esp_iv, + ixs->ipsp->ips_iv, + ixs->ipsp->ips_iv_size); + ret=ipsec_alg_esp_encrypt(ixs->ipsp, + idat, ilen, espp->esp_iv, + IPSEC_ALG_ENCRYPT); + + prng_bytes(&ipsec_prng, + (char *)ixs->ipsp->ips_iv, + ixs->ipsp->ips_iv_size); + } + + if (ixt_a) { + ipsec_alg_sa_esp_hash(ixs->ipsp, + (caddr_t)espp, len - ixs->iphlen - authlen, + &(dat[len - authlen]), authlen); + + } else + switch(ixs->ipsp->ips_authalg) { +#ifdef CONFIG_KLIPS_AUTH_HMAC_MD5 + case AH_MD5: + dmp("espp", (char*)espp, len - ixs->iphlen - authlen); + tctx.md5 = ((struct md5_ctx*)(ixs->ipsp->ips_key_a))->ictx; + dmp("ictx", (char*)&tctx.md5, sizeof(tctx.md5)); + osMD5Update(&tctx.md5, (caddr_t)espp, len - ixs->iphlen - authlen); + dmp("ictx+dat", (char*)&tctx.md5, sizeof(tctx.md5)); + osMD5Final(hash, &tctx.md5); + dmp("ictx hash", (char*)&hash, sizeof(hash)); + tctx.md5 = ((struct md5_ctx*)(ixs->ipsp->ips_key_a))->octx; + dmp("octx", (char*)&tctx.md5, sizeof(tctx.md5)); + osMD5Update(&tctx.md5, hash, AHMD596_ALEN); + dmp("octx+hash", (char*)&tctx.md5, sizeof(tctx.md5)); + osMD5Final(hash, &tctx.md5); + dmp("octx hash", (char*)&hash, sizeof(hash)); + memcpy(&(dat[len - authlen]), hash, authlen); + + /* paranoid */ + memset((caddr_t)&tctx.md5, 0, sizeof(tctx.md5)); + memset((caddr_t)hash, 0, sizeof(*hash)); + break; +#endif /* CONFIG_KLIPS_AUTH_HMAC_MD5 */ +#ifdef CONFIG_KLIPS_AUTH_HMAC_SHA1 + case AH_SHA: + tctx.sha1 = ((struct sha1_ctx*)(ixs->ipsp->ips_key_a))->ictx; + SHA1Update(&tctx.sha1, (caddr_t)espp, len - ixs->iphlen - authlen); + SHA1Final(hash, &tctx.sha1); + tctx.sha1 = ((struct sha1_ctx*)(ixs->ipsp->ips_key_a))->octx; + SHA1Update(&tctx.sha1, hash, AHSHA196_ALEN); + SHA1Final(hash, &tctx.sha1); + memcpy(&(dat[len - authlen]), hash, authlen); + + /* paranoid */ + memset((caddr_t)&tctx.sha1, 0, sizeof(tctx.sha1)); + memset((caddr_t)hash, 0, sizeof(*hash)); + break; +#endif /* CONFIG_KLIPS_AUTH_HMAC_SHA1 */ + case AH_NONE: + break; + default: + ixs->stats->tx_errors++; + return IPSEC_XMIT_AH_BADALG; + } +#ifdef NET_21 + ixs->skb->h.raw = (unsigned char*)espp; +#endif /* NET_21 */ + break; +#endif /* !CONFIG_KLIPS_ESP */ +#ifdef CONFIG_KLIPS_AH + case IPPROTO_AH: + ahp = (struct ahhdr *)(dat + ixs->iphlen); + ahp->ah_spi = ixs->ipsp->ips_said.spi; + ahp->ah_rpl = htonl(++(ixs->ipsp->ips_replaywin_lastseq)); + ahp->ah_rv = 0; + ahp->ah_nh = ixs->iph->protocol; + ahp->ah_hl = (headroom >> 2) - sizeof(__u64)/sizeof(__u32); + ixs->iph->protocol = IPPROTO_AH; + dmp("ahp", (char*)ahp, sizeof(*ahp)); + + ipo = *ixs->iph; + ipo.tos = 0; + ipo.frag_off = 0; + ipo.ttl = 0; + ipo.check = 0; + dmp("ipo", (char*)&ipo, sizeof(ipo)); + + switch(ixs->ipsp->ips_authalg) { +#ifdef CONFIG_KLIPS_AUTH_HMAC_MD5 + case AH_MD5: + tctx.md5 = ((struct md5_ctx*)(ixs->ipsp->ips_key_a))->ictx; + dmp("ictx", (char*)&tctx.md5, sizeof(tctx.md5)); + osMD5Update(&tctx.md5, (unsigned char *)&ipo, sizeof (struct iphdr)); + dmp("ictx+ipo", (char*)&tctx.md5, sizeof(tctx.md5)); + osMD5Update(&tctx.md5, (unsigned char *)ahp, headroom - sizeof(ahp->ah_data)); + dmp("ictx+ahp", (char*)&tctx.md5, sizeof(tctx.md5)); + osMD5Update(&tctx.md5, (unsigned char *)zeroes, AHHMAC_HASHLEN); + dmp("ictx+zeroes", (char*)&tctx.md5, sizeof(tctx.md5)); + osMD5Update(&tctx.md5, dat + ixs->iphlen + headroom, len - ixs->iphlen - headroom); + dmp("ictx+dat", (char*)&tctx.md5, sizeof(tctx.md5)); + osMD5Final(hash, &tctx.md5); + dmp("ictx hash", (char*)&hash, sizeof(hash)); + tctx.md5 = ((struct md5_ctx*)(ixs->ipsp->ips_key_a))->octx; + dmp("octx", (char*)&tctx.md5, sizeof(tctx.md5)); + osMD5Update(&tctx.md5, hash, AHMD596_ALEN); + dmp("octx+hash", (char*)&tctx.md5, sizeof(tctx.md5)); + osMD5Final(hash, &tctx.md5); + dmp("octx hash", (char*)&hash, sizeof(hash)); + + memcpy(ahp->ah_data, hash, AHHMAC_HASHLEN); + + /* paranoid */ + memset((caddr_t)&tctx.md5, 0, sizeof(tctx.md5)); + memset((caddr_t)hash, 0, sizeof(*hash)); + break; +#endif /* CONFIG_KLIPS_AUTH_HMAC_MD5 */ +#ifdef CONFIG_KLIPS_AUTH_HMAC_SHA1 + case AH_SHA: + tctx.sha1 = ((struct sha1_ctx*)(ixs->ipsp->ips_key_a))->ictx; + SHA1Update(&tctx.sha1, (unsigned char *)&ipo, sizeof (struct iphdr)); + SHA1Update(&tctx.sha1, (unsigned char *)ahp, headroom - sizeof(ahp->ah_data)); + SHA1Update(&tctx.sha1, (unsigned char *)zeroes, AHHMAC_HASHLEN); + SHA1Update(&tctx.sha1, dat + ixs->iphlen + headroom, len - ixs->iphlen - headroom); + SHA1Final(hash, &tctx.sha1); + tctx.sha1 = ((struct sha1_ctx*)(ixs->ipsp->ips_key_a))->octx; + SHA1Update(&tctx.sha1, hash, AHSHA196_ALEN); + SHA1Final(hash, &tctx.sha1); + + memcpy(ahp->ah_data, hash, AHHMAC_HASHLEN); + + /* paranoid */ + memset((caddr_t)&tctx.sha1, 0, sizeof(tctx.sha1)); + memset((caddr_t)hash, 0, sizeof(*hash)); + break; +#endif /* CONFIG_KLIPS_AUTH_HMAC_SHA1 */ + default: + ixs->stats->tx_errors++; + return IPSEC_XMIT_AH_BADALG; + } +#ifdef NET_21 + ixs->skb->h.raw = (unsigned char*)ahp; +#endif /* NET_21 */ + break; +#endif /* CONFIG_KLIPS_AH */ +#ifdef CONFIG_KLIPS_IPIP + case IPPROTO_IPIP: + ixs->iph->version = 4; + switch(sysctl_ipsec_tos) { + case 0: +#ifdef NET_21 + ixs->iph->tos = ixs->skb->nh.iph->tos; +#else /* NET_21 */ + ixs->iph->tos = ixs->skb->ip_hdr->tos; +#endif /* NET_21 */ + break; + case 1: + ixs->iph->tos = 0; + break; + default: + break; + } + ixs->iph->ttl = SYSCTL_IPSEC_DEFAULT_TTL; + ixs->iph->frag_off = 0; + ixs->iph->saddr = ((struct sockaddr_in*)(ixs->ipsp->ips_addr_s))->sin_addr.s_addr; + ixs->iph->daddr = ((struct sockaddr_in*)(ixs->ipsp->ips_addr_d))->sin_addr.s_addr; + ixs->iph->protocol = IPPROTO_IPIP; + ixs->iph->ihl = sizeof(struct iphdr) >> 2; + + KLIPS_IP_SELECT_IDENT(ixs->iph, ixs->skb); + + ixs->newdst = (__u32)ixs->iph->daddr; + ixs->newsrc = (__u32)ixs->iph->saddr; + +#ifdef NET_21 + ixs->skb->h.ipiph = ixs->skb->nh.iph; +#endif /* NET_21 */ + break; +#endif /* !CONFIG_KLIPS_IPIP */ +#ifdef CONFIG_KLIPS_IPCOMP + case IPPROTO_COMP: + { + unsigned int flags = 0; +#ifdef CONFIG_KLIPS_DEBUG + unsigned int old_tot_len = ntohs(ixs->iph->tot_len); +#endif /* CONFIG_KLIPS_DEBUG */ + ixs->ipsp->ips_comp_ratio_dbytes += ntohs(ixs->iph->tot_len); + + ixs->skb = skb_compress(ixs->skb, ixs->ipsp, &flags); + +#ifdef NET_21 + ixs->iph = ixs->skb->nh.iph; +#else /* NET_21 */ + ixs->iph = ixs->skb->ip_hdr; +#endif /* NET_21 */ + + ixs->ipsp->ips_comp_ratio_cbytes += ntohs(ixs->iph->tot_len); + +#ifdef CONFIG_KLIPS_DEBUG + if (debug_tunnel & DB_TN_CROUT) + { + if (old_tot_len > ntohs(ixs->iph->tot_len)) + KLIPS_PRINT(debug_tunnel & DB_TN_CROUT, + "klips_debug:ipsec_xmit_encap_once: " + "packet shrunk from %d to %d bytes after compression, cpi=%04x (should be from spi=%08x, spi&0xffff=%04x.\n", + old_tot_len, ntohs(ixs->iph->tot_len), + ntohs(((struct ipcomphdr*)(((char*)ixs->iph) + ((ixs->iph->ihl) << 2)))->ipcomp_cpi), + ntohl(ixs->ipsp->ips_said.spi), + (__u16)(ntohl(ixs->ipsp->ips_said.spi) & 0x0000ffff)); + else + KLIPS_PRINT(debug_tunnel & DB_TN_CROUT, + "klips_debug:ipsec_xmit_encap_once: " + "packet did not compress (flags = %d).\n", + flags); + } +#endif /* CONFIG_KLIPS_DEBUG */ + } + break; +#endif /* CONFIG_KLIPS_IPCOMP */ + default: + ixs->stats->tx_errors++; + return IPSEC_XMIT_BADPROTO; + } + +#ifdef NET_21 + ixs->skb->nh.raw = ixs->skb->data; +#else /* NET_21 */ + ixs->skb->ip_hdr = ixs->skb->h.iph = (struct iphdr *) ixs->skb->data; +#endif /* NET_21 */ + ixs->iph->check = 0; + ixs->iph->check = ip_fast_csum((unsigned char *)ixs->iph, ixs->iph->ihl); + + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_encap_once: " + "after <%s%s%s>, SA:%s:\n", + IPS_XFORM_NAME(ixs->ipsp), + ixs->sa_len ? ixs->sa_txt : " (error)"); + KLIPS_IP_PRINT(debug_tunnel & DB_TN_XMIT, ixs->iph); + + ixs->ipsp->ips_life.ipl_bytes.ipl_count += len; + ixs->ipsp->ips_life.ipl_bytes.ipl_last = len; + + if(!ixs->ipsp->ips_life.ipl_usetime.ipl_count) { + ixs->ipsp->ips_life.ipl_usetime.ipl_count = jiffies / HZ; + } + ixs->ipsp->ips_life.ipl_usetime.ipl_last = jiffies / HZ; + ixs->ipsp->ips_life.ipl_packets.ipl_count++; + + ixs->ipsp = ixs->ipsp->ips_onext; + + return IPSEC_XMIT_OK; +} + +/* + * If the IP packet (iph) is a carrying TCP/UDP, then set the encaps + * source and destination ports to those from the TCP/UDP header. + */ +void ipsec_extract_ports(struct iphdr * iph, struct sockaddr_encap * er) +{ + struct udphdr *udp; + + switch (iph->protocol) { + case IPPROTO_UDP: + case IPPROTO_TCP: + /* + * The ports are at the same offsets in a TCP and UDP + * header so hack it ... + */ + udp = (struct udphdr*)(((char*)iph)+(iph->ihl<<2)); + er->sen_sport = udp->source; + er->sen_dport = udp->dest; + break; + default: + er->sen_sport = 0; + er->sen_dport = 0; + break; + } +} + +/* + * A TRAP eroute is installed and we want to replace it with a HOLD + * eroute. + */ +static int create_hold_eroute(struct eroute *origtrap, + struct sk_buff * skb, struct iphdr * iph, + uint32_t eroute_pid) +{ + struct eroute hold_eroute; + ip_said hold_said; + struct sk_buff *first, *last; + int error; + + first = last = NULL; + memset((caddr_t)&hold_eroute, 0, sizeof(hold_eroute)); + memset((caddr_t)&hold_said, 0, sizeof(hold_said)); + + hold_said.proto = IPPROTO_INT; + hold_said.spi = htonl(SPI_HOLD); + hold_said.dst.u.v4.sin_addr.s_addr = INADDR_ANY; + + hold_eroute.er_eaddr.sen_len = sizeof(struct sockaddr_encap); + hold_eroute.er_emask.sen_len = sizeof(struct sockaddr_encap); + hold_eroute.er_eaddr.sen_family = AF_ENCAP; + hold_eroute.er_emask.sen_family = AF_ENCAP; + hold_eroute.er_eaddr.sen_type = SENT_IP4; + hold_eroute.er_emask.sen_type = 255; + + hold_eroute.er_eaddr.sen_ip_src.s_addr = iph->saddr; + hold_eroute.er_eaddr.sen_ip_dst.s_addr = iph->daddr; + hold_eroute.er_emask.sen_ip_src.s_addr = INADDR_BROADCAST; + hold_eroute.er_emask.sen_ip_dst.s_addr = INADDR_BROADCAST; + hold_eroute.er_emask.sen_sport = 0; + hold_eroute.er_emask.sen_dport = 0; + hold_eroute.er_pid = eroute_pid; + hold_eroute.er_count = 0; + hold_eroute.er_lasttime = jiffies/HZ; + + /* + * if it wasn't captured by a wildcard, then don't record it as + * a wildcard. + */ + if(origtrap->er_eaddr.sen_proto != 0) { + hold_eroute.er_eaddr.sen_proto = iph->protocol; + + if((iph->protocol == IPPROTO_TCP || + iph->protocol == IPPROTO_UDP) && + (origtrap->er_eaddr.sen_sport != 0 || + origtrap->er_eaddr.sen_dport != 0)) { + + if(origtrap->er_eaddr.sen_sport != 0) + hold_eroute.er_emask.sen_sport = ~0; + + if(origtrap->er_eaddr.sen_dport != 0) + hold_eroute.er_emask.sen_dport = ~0; + + ipsec_extract_ports(iph, &hold_eroute.er_eaddr); + } + } + +#ifdef CONFIG_KLIPS_DEBUG + if (debug_pfkey) { + char buf1[64], buf2[64]; + subnettoa(hold_eroute.er_eaddr.sen_ip_src, + hold_eroute.er_emask.sen_ip_src, 0, buf1, sizeof(buf1)); + subnettoa(hold_eroute.er_eaddr.sen_ip_dst, + hold_eroute.er_emask.sen_ip_dst, 0, buf2, sizeof(buf2)); + KLIPS_PRINT(debug_pfkey, + "klips_debug:ipsec_tunnel_start_xmit: " + "calling breakeroute and makeroute for %s:%d->%s:%d %d HOLD eroute.\n", + buf1, ntohs(hold_eroute.er_eaddr.sen_sport), + buf2, ntohs(hold_eroute.er_eaddr.sen_dport), + hold_eroute.er_eaddr.sen_proto); + } +#endif /* CONFIG_KLIPS_DEBUG */ + + if (ipsec_breakroute(&(hold_eroute.er_eaddr), &(hold_eroute.er_emask), + &first, &last)) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:ipsec_tunnel_start_xmit: " + "HOLD breakeroute found nothing.\n"); + } else { + KLIPS_PRINT(debug_pfkey, + "klips_debug:ipsec_tunnel_start_xmit: " + "HOLD breakroute deleted %u.%u.%u.%u:%u -> %u.%u.%u.%u:%u %u\n", + NIPQUAD(hold_eroute.er_eaddr.sen_ip_src), + ntohs(hold_eroute.er_eaddr.sen_sport), + NIPQUAD(hold_eroute.er_eaddr.sen_ip_dst), + ntohs(hold_eroute.er_eaddr.sen_dport), + hold_eroute.er_eaddr.sen_proto); + } + if (first != NULL) + kfree_skb(first); + if (last != NULL) + kfree_skb(last); + + error = ipsec_makeroute(&(hold_eroute.er_eaddr), + &(hold_eroute.er_emask), + hold_said, eroute_pid, skb, NULL, NULL); + if (error) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:ipsec_tunnel_start_xmit: " + "HOLD makeroute returned %d, failed.\n", error); + } else { + KLIPS_PRINT(debug_pfkey, + "klips_debug:ipsec_tunnel_start_xmit: " + "HOLD makeroute call successful.\n"); + } + return (error == 0); +} + +/* + * upon entry to this function, ixs->skb should be setup + * as follows: + * + * data = beginning of IP packet <- differs from ipsec_rcv(). + * nh.raw = beginning of IP packet. + * h.raw = data after the IP packet. + * + */ +enum ipsec_xmit_value +ipsec_xmit_encap_bundle(struct ipsec_xmit_state *ixs) +{ + struct ipsec_alg_enc *ixt_e = NULL; + struct ipsec_alg_auth *ixt_a = NULL; + int blocksize = 8; + enum ipsec_xmit_value bundle_stat = IPSEC_XMIT_OK; + + ixs->newdst = ixs->orgdst = ixs->iph->daddr; + ixs->newsrc = ixs->orgsrc = ixs->iph->saddr; + ixs->orgedst = ixs->outgoing_said.dst.u.v4.sin_addr.s_addr; + ixs->iphlen = ixs->iph->ihl << 2; + ixs->pyldsz = ntohs(ixs->iph->tot_len) - ixs->iphlen; + ixs->max_headroom = ixs->max_tailroom = 0; + + if (ixs->outgoing_said.proto == IPPROTO_INT) { + switch (ntohl(ixs->outgoing_said.spi)) { + case SPI_DROP: + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_encap_bundle: " + "shunt SA of DROP or no eroute: dropping.\n"); + ixs->stats->tx_dropped++; + break; + + case SPI_REJECT: + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_encap_bundle: " + "shunt SA of REJECT: notifying and dropping.\n"); + ICMP_SEND(ixs->skb, + ICMP_DEST_UNREACH, + ICMP_PKT_FILTERED, + 0, + ixs->physdev); + ixs->stats->tx_dropped++; + break; + + case SPI_PASS: +#ifdef NET_21 + ixs->pass = 1; +#endif /* NET_21 */ + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_encap_bundle: " + "PASS: calling dev_queue_xmit\n"); + return IPSEC_XMIT_PASS; + goto cleanup; + + case SPI_HOLD: + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_encap_bundle: " + "shunt SA of HOLD: this does not make sense here, dropping.\n"); + ixs->stats->tx_dropped++; + break; + + case SPI_TRAP: + case SPI_TRAPSUBNET: + { + struct sockaddr_in src, dst; +#ifdef CONFIG_KLIPS_DEBUG + char bufsrc[ADDRTOA_BUF], bufdst[ADDRTOA_BUF]; +#endif /* CONFIG_KLIPS_DEBUG */ + + /* Signal all listening KMds with a PF_KEY ACQUIRE */ + + memset(&src, 0, sizeof(src)); + memset(&dst, 0, sizeof(dst)); + src.sin_family = AF_INET; + dst.sin_family = AF_INET; + src.sin_addr.s_addr = ixs->iph->saddr; + dst.sin_addr.s_addr = ixs->iph->daddr; + + ixs->ips.ips_transport_protocol = 0; + src.sin_port = 0; + dst.sin_port = 0; + + if(ixs->eroute->er_eaddr.sen_proto != 0) { + ixs->ips.ips_transport_protocol = ixs->iph->protocol; + + if(ixs->eroute->er_eaddr.sen_sport != 0) { + src.sin_port = + (ixs->iph->protocol == IPPROTO_UDP + ? ((struct udphdr*) (((caddr_t)ixs->iph) + (ixs->iph->ihl << 2)))->source + : (ixs->iph->protocol == IPPROTO_TCP + ? ((struct tcphdr*)((caddr_t)ixs->iph + (ixs->iph->ihl << 2)))->source + : 0)); + } + if(ixs->eroute->er_eaddr.sen_dport != 0) { + dst.sin_port = + (ixs->iph->protocol == IPPROTO_UDP + ? ((struct udphdr*) (((caddr_t)ixs->iph) + (ixs->iph->ihl << 2)))->dest + : (ixs->iph->protocol == IPPROTO_TCP + ? ((struct tcphdr*)((caddr_t)ixs->iph + (ixs->iph->ihl << 2)))->dest + : 0)); + } + } + + ixs->ips.ips_addr_s = (struct sockaddr*)(&src); + ixs->ips.ips_addr_d = (struct sockaddr*)(&dst); + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_encap_bundle: " + "SADB_ACQUIRE sent with src=%s:%d, dst=%s:%d, proto=%d.\n", + addrtoa(((struct sockaddr_in*)(ixs->ips.ips_addr_s))->sin_addr, 0, bufsrc, sizeof(bufsrc)) <= ADDRTOA_BUF ? bufsrc : "BAD_ADDR", + ntohs(((struct sockaddr_in*)(ixs->ips.ips_addr_s))->sin_port), + addrtoa(((struct sockaddr_in*)(ixs->ips.ips_addr_d))->sin_addr, 0, bufdst, sizeof(bufdst)) <= ADDRTOA_BUF ? bufdst : "BAD_ADDR", + ntohs(((struct sockaddr_in*)(ixs->ips.ips_addr_d))->sin_port), + ixs->ips.ips_said.proto); + + /* increment count of total traps needed */ + ipsec_xmit_trap_count++; + + if (pfkey_acquire(&ixs->ips) == 0) { + + /* note that we succeeded */ + ipsec_xmit_trap_sendcount++; + + if (ixs->outgoing_said.spi==htonl(SPI_TRAPSUBNET)) { + /* + * The spinlock is to prevent any other + * process from accessing or deleting + * the eroute while we are using and + * updating it. + */ + spin_lock(&eroute_lock); + ixs->eroute = ipsec_findroute(&ixs->matcher); + if(ixs->eroute) { + ixs->eroute->er_said.spi = htonl(SPI_HOLD); + ixs->eroute->er_first = ixs->skb; + ixs->skb = NULL; + } + spin_unlock(&eroute_lock); + } else if (create_hold_eroute(ixs->eroute, + ixs->skb, + ixs->iph, + ixs->eroute_pid)) { + ixs->skb = NULL; + } + /* whether or not the above succeeded, we continue */ + + } + ixs->stats->tx_dropped++; + } + default: + /* XXX what do we do with an unknown shunt spi? */ + break; + } /* switch (ntohl(ixs->outgoing_said.spi)) */ + return IPSEC_XMIT_STOLEN; + } /* if (ixs->outgoing_said.proto == IPPROTO_INT) */ + + /* + The spinlock is to prevent any other process from + accessing or deleting the ipsec_sa hash table or any of the + ipsec_sa s while we are using and updating them. + + This is not optimal, but was relatively straightforward + at the time. A better way to do it has been planned for + more than a year, to lock the hash table and put reference + counts on each ipsec_sa instead. This is not likely to happen + in KLIPS1 unless a volunteer contributes it, but will be + designed into KLIPS2. + */ + spin_lock(&tdb_lock); + + ixs->ipsp = ipsec_sa_getbyid(&ixs->outgoing_said); + ixs->sa_len = satot(&ixs->outgoing_said, 0, ixs->sa_txt, sizeof(ixs->sa_txt)); + + if (ixs->ipsp == NULL) { + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_encap_bundle: " + "no ipsec_sa for SA%s: outgoing packet with no SA, dropped.\n", + ixs->sa_len ? ixs->sa_txt : " (error)"); + if(ixs->stats) { + ixs->stats->tx_dropped++; + } + bundle_stat = IPSEC_XMIT_SAIDNOTFOUND; + goto cleanup; + } + + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_encap_bundle: " + "found ipsec_sa -- SA:<%s%s%s> %s\n", + IPS_XFORM_NAME(ixs->ipsp), + ixs->sa_len ? ixs->sa_txt : " (error)"); + + /* + * How much headroom do we need to be able to apply + * all the grouped transforms? + */ + ixs->ipsq = ixs->ipsp; /* save the head of the ipsec_sa chain */ + while (ixs->ipsp) { + ixs->sa_len = satot(&ixs->ipsp->ips_said, 0, ixs->sa_txt, sizeof(ixs->sa_txt)); + if(ixs->sa_len == 0) { + strcpy(ixs->sa_txt, "(error)"); + } + + /* If it is in larval state, drop the packet, we cannot process yet. */ + if(ixs->ipsp->ips_state == SADB_SASTATE_LARVAL) { + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_encap_bundle: " + "ipsec_sa in larval state for SA:<%s%s%s> %s, cannot be used yet, dropping packet.\n", + IPS_XFORM_NAME(ixs->ipsp), + ixs->sa_len ? ixs->sa_txt : " (error)"); + if(ixs->stats) { + ixs->stats->tx_errors++; + } + bundle_stat = IPSEC_XMIT_SAIDNOTLIVE; + goto cleanup; + } + + if(ixs->ipsp->ips_state == SADB_SASTATE_DEAD) { + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_encap_bundle: " + "ipsec_sa in dead state for SA:<%s%s%s> %s, can no longer be used, dropping packet.\n", + IPS_XFORM_NAME(ixs->ipsp), + ixs->sa_len ? ixs->sa_txt : " (error)"); + ixs->stats->tx_errors++; + bundle_stat = IPSEC_XMIT_SAIDNOTLIVE; + goto cleanup; + } + + /* If the replay window counter == -1, expire SA, it will roll */ + if(ixs->ipsp->ips_replaywin && ixs->ipsp->ips_replaywin_lastseq == -1) { + pfkey_expire(ixs->ipsp, 1); + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_encap_bundle: " + "replay window counter rolled for SA:<%s%s%s> %s, packet dropped, expiring SA.\n", + IPS_XFORM_NAME(ixs->ipsp), + ixs->sa_len ? ixs->sa_txt : " (error)"); + ipsec_sa_delchain(ixs->ipsp); + ixs->stats->tx_errors++; + bundle_stat = IPSEC_XMIT_REPLAYROLLED; + goto cleanup; + } + + /* + * if this is the first time we are using this SA, mark start time, + * and offset hard/soft counters by "now" for later checking. + */ +#if 0 + if(ixs->ipsp->ips_life.ipl_usetime.count == 0) { + ixs->ipsp->ips_life.ipl_usetime.count = jiffies; + ixs->ipsp->ips_life.ipl_usetime.hard += jiffies; + ixs->ipsp->ips_life.ipl_usetime.soft += jiffies; + } +#endif + + + if(ipsec_lifetime_check(&ixs->ipsp->ips_life.ipl_bytes, "bytes", ixs->sa_txt, + ipsec_life_countbased, ipsec_outgoing, ixs->ipsp) == ipsec_life_harddied || + ipsec_lifetime_check(&ixs->ipsp->ips_life.ipl_addtime, "addtime",ixs->sa_txt, + ipsec_life_timebased, ipsec_outgoing, ixs->ipsp) == ipsec_life_harddied || + ipsec_lifetime_check(&ixs->ipsp->ips_life.ipl_usetime, "usetime",ixs->sa_txt, + ipsec_life_timebased, ipsec_outgoing, ixs->ipsp) == ipsec_life_harddied || + ipsec_lifetime_check(&ixs->ipsp->ips_life.ipl_packets, "packets",ixs->sa_txt, + ipsec_life_countbased, ipsec_outgoing, ixs->ipsp) == ipsec_life_harddied) { + + ipsec_sa_delchain(ixs->ipsp); + ixs->stats->tx_errors++; + bundle_stat = IPSEC_XMIT_LIFETIMEFAILED; + goto cleanup; + } + + + ixs->headroom = ixs->tailroom = 0; + KLIPS_PRINT(debug_tunnel & DB_TN_CROUT, + "klips_debug:ipsec_xmit_encap_bundle: " + "calling room for <%s%s%s>, SA:%s\n", + IPS_XFORM_NAME(ixs->ipsp), + ixs->sa_len ? ixs->sa_txt : " (error)"); + switch(ixs->ipsp->ips_said.proto) { +#ifdef CONFIG_KLIPS_AH + case IPPROTO_AH: + ixs->headroom += sizeof(struct ahhdr); + break; +#endif /* CONFIG_KLIPS_AH */ +#ifdef CONFIG_KLIPS_ESP + case IPPROTO_ESP: + ixt_e=ixs->ipsp->ips_alg_enc; + if (ixt_e) { + blocksize = ixt_e->ixt_common.ixt_blocksize; + ixs->headroom += ESP_HEADER_LEN + ixt_e->ixt_common.ixt_support.ias_ivlen/8; + } + else { + ixs->stats->tx_errors++; + bundle_stat = IPSEC_XMIT_ESP_BADALG; + goto cleanup; + } + + if ((ixt_a=ixs->ipsp->ips_alg_auth)) { + ixs->tailroom += AHHMAC_HASHLEN; + } else + switch(ixs->ipsp->ips_authalg) { +#ifdef CONFIG_KLIPS_AUTH_HMAC_MD5 + case AH_MD5: + ixs->tailroom += AHHMAC_HASHLEN; + break; +#endif /* CONFIG_KLIPS_AUTH_HMAC_MD5 */ +#ifdef CONFIG_KLIPS_AUTH_HMAC_SHA1 + case AH_SHA: + ixs->tailroom += AHHMAC_HASHLEN; + break; +#endif /* CONFIG_KLIPS_AUTH_HMAC_SHA1 */ + case AH_NONE: + break; + default: + ixs->stats->tx_errors++; + bundle_stat = IPSEC_XMIT_AH_BADALG; + goto cleanup; + } + ixs->tailroom += blocksize != 1 ? + ((blocksize - ((ixs->pyldsz + 2) % blocksize)) % blocksize) + 2 : + ((4 - ((ixs->pyldsz + 2) % 4)) % 4) + 2; +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL + if ((ixs->ipsp->ips_natt_type) && (!ixs->natt_type)) { + ixs->natt_type = ixs->ipsp->ips_natt_type; + ixs->natt_sport = ixs->ipsp->ips_natt_sport; + ixs->natt_dport = ixs->ipsp->ips_natt_dport; + switch (ixs->natt_type) { + case ESPINUDP_WITH_NON_IKE: + ixs->natt_head = sizeof(struct udphdr)+(2*sizeof(__u32)); + break; + + case ESPINUDP_WITH_NON_ESP: + ixs->natt_head = sizeof(struct udphdr); + break; + + default: + KLIPS_PRINT(debug_tunnel & DB_TN_CROUT + , "klips_xmit: invalid nat-t type %d" + , ixs->natt_type); + bundle_stat = IPSEC_XMIT_ESPUDP_BADTYPE; + goto cleanup; + + break; + } + ixs->tailroom += ixs->natt_head; + } +#endif + break; +#endif /* !CONFIG_KLIPS_ESP */ +#ifdef CONFIG_KLIPS_IPIP + case IPPROTO_IPIP: + ixs->headroom += sizeof(struct iphdr); + break; +#endif /* !CONFIG_KLIPS_IPIP */ + case IPPROTO_COMP: +#ifdef CONFIG_KLIPS_IPCOMP + /* + We can't predict how much the packet will + shrink without doing the actual compression. + We could do it here, if we were the first + encapsulation in the chain. That might save + us a skb_copy_expand, since we might fit + into the existing skb then. However, this + would be a bit unclean (and this hack has + bit us once), so we better not do it. After + all, the skb_copy_expand is cheap in + comparison to the actual compression. + At least we know the packet will not grow. + */ + break; +#endif /* CONFIG_KLIPS_IPCOMP */ + default: + ixs->stats->tx_errors++; + bundle_stat = IPSEC_XMIT_BADPROTO; + goto cleanup; + } + ixs->ipsp = ixs->ipsp->ips_onext; + KLIPS_PRINT(debug_tunnel & DB_TN_CROUT, + "klips_debug:ipsec_xmit_encap_bundle: " + "Required head,tailroom: %d,%d\n", + ixs->headroom, ixs->tailroom); + ixs->max_headroom += ixs->headroom; + ixs->max_tailroom += ixs->tailroom; + ixs->pyldsz += (ixs->headroom + ixs->tailroom); + } + ixs->ipsp = ixs->ipsq; /* restore the head of the ipsec_sa chain */ + + KLIPS_PRINT(debug_tunnel & DB_TN_CROUT, + "klips_debug:ipsec_xmit_encap_bundle: " + "existing head,tailroom: %d,%d before applying xforms with head,tailroom: %d,%d .\n", + skb_headroom(ixs->skb), skb_tailroom(ixs->skb), + ixs->max_headroom, ixs->max_tailroom); + + ixs->tot_headroom += ixs->max_headroom; + ixs->tot_tailroom += ixs->max_tailroom; + + ixs->mtudiff = ixs->cur_mtu + ixs->tot_headroom + ixs->tot_tailroom - ixs->physmtu; + + KLIPS_PRINT(debug_tunnel & DB_TN_CROUT, + "klips_debug:ipsec_xmit_encap_bundle: " + "mtu:%d physmtu:%d tothr:%d tottr:%d mtudiff:%d ippkttotlen:%d\n", + ixs->cur_mtu, ixs->physmtu, + ixs->tot_headroom, ixs->tot_tailroom, ixs->mtudiff, ntohs(ixs->iph->tot_len)); + if(ixs->mtudiff > 0) { + int newmtu = ixs->physmtu - (ixs->tot_headroom + ((ixs->tot_tailroom + 2) & ~7) + 5); + + KLIPS_PRINT(debug_tunnel & DB_TN_CROUT, + "klips_info:ipsec_xmit_encap_bundle: " + "dev %s mtu of %d decreased by %d to %d\n", + ixs->dev ? ixs->dev->name : "ifX", + ixs->cur_mtu, + ixs->cur_mtu - newmtu, + newmtu); + ixs->cur_mtu = newmtu; + + /* this would seem to adjust the MTU of the route as well */ +#if 0 + ixs->skb->dst->pmtu = ixs->prv->mtu; /* RGB */ +#endif /* 0 */ + } + + /* + If the sender is doing PMTU discovery, and the + packet doesn't fit within ixs->prv->mtu, notify him + (unless it was an ICMP packet, or it was not the + zero-offset packet) and send it anyways. + + Note: buggy firewall configuration may prevent the + ICMP packet from getting back. + */ + if(sysctl_ipsec_icmp + && ixs->cur_mtu < ntohs(ixs->iph->tot_len) + && (ixs->iph->frag_off & __constant_htons(IP_DF)) ) { + int notify = ixs->iph->protocol != IPPROTO_ICMP + && (ixs->iph->frag_off & __constant_htons(IP_OFFSET)) == 0; + +#ifdef IPSEC_obey_DF + KLIPS_PRINT(debug_tunnel & DB_TN_CROUT, + "klips_debug:ipsec_xmit_encap_bundle: " + "fragmentation needed and DF set; %sdropping packet\n", + notify ? "sending ICMP and " : ""); + if (notify) + ICMP_SEND(ixs->skb, + ICMP_DEST_UNREACH, + ICMP_FRAG_NEEDED, + ixs->cur_mtu, + ixs->physdev); + ixs->stats->tx_errors++; + bundle_stat = IPSEC_XMIT_CANNOTFRAG; + goto cleanup; +#else /* IPSEC_obey_DF */ + KLIPS_PRINT(debug_tunnel & DB_TN_CROUT, + "klips_debug:ipsec_xmit_encap_bundle: " + "fragmentation needed and DF set; %spassing packet\n", + notify ? "sending ICMP and " : ""); + if (notify) + ICMP_SEND(ixs->skb, + ICMP_DEST_UNREACH, + ICMP_FRAG_NEEDED, + ixs->cur_mtu, + ixs->physdev); +#endif /* IPSEC_obey_DF */ + } + +#ifdef MSS_HACK + /* + * If this is a transport mode TCP packet with + * SYN set, determine an effective MSS based on + * AH/ESP overheads determined above. + */ + if (ixs->iph->protocol == IPPROTO_TCP + && ixs->outgoing_said.proto != IPPROTO_IPIP) { + struct tcphdr *tcph = ixs->skb->h.th; + if (tcph->syn && !tcph->ack) { + if(!ipsec_adjust_mss(ixs->skb, tcph, ixs->cur_mtu)) { + printk(KERN_WARNING + "klips_warning:ipsec_xmit_encap_bundle: " + "ipsec_adjust_mss() failed\n"); + ixs->stats->tx_errors++; + bundle_stat = IPSEC_XMIT_MSSERR; + goto cleanup; + } + } + } +#endif /* MSS_HACK */ + +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL + if ((ixs->natt_type) && (ixs->outgoing_said.proto != IPPROTO_IPIP)) { + /** + * NAT-Traversal and Transport Mode: + * we need to correct TCP/UDP checksum + * + * If we've got NAT-OA, we can fix checksum without recalculation. + * If we don't we can zero udp checksum. + */ + __u32 natt_oa = ixs->ipsp->ips_natt_oa ? + ((struct sockaddr_in*)(ixs->ipsp->ips_natt_oa))->sin_addr.s_addr : 0; + __u16 pkt_len = ixs->skb->tail - (unsigned char *)ixs->iph; + __u16 data_len = pkt_len - (ixs->iph->ihl << 2); + switch (ixs->iph->protocol) { + case IPPROTO_TCP: + if (data_len >= sizeof(struct tcphdr)) { + struct tcphdr *tcp = (struct tcphdr *)((__u32 *)ixs->iph+ixs->iph->ihl); + if (natt_oa) { + __u32 buff[2] = { ~ixs->iph->daddr, natt_oa }; + KLIPS_PRINT(debug_tunnel, + "klips_debug:ipsec_tunnel_start_xmit: " + "NAT-T & TRANSPORT: " + "fix TCP checksum using NAT-OA\n"); + tcp->check = csum_fold( + csum_partial((unsigned char *)buff, sizeof(buff), + tcp->check^0xffff)); + } + else { + KLIPS_PRINT(debug_tunnel, + "klips_debug:ipsec_tunnel_start_xmit: " + "NAT-T & TRANSPORT: do not recalc TCP checksum\n"); + } + } + else { + KLIPS_PRINT(debug_tunnel, + "klips_debug:ipsec_tunnel_start_xmit: " + "NAT-T & TRANSPORT: can't fix TCP checksum\n"); + } + break; + case IPPROTO_UDP: + if (data_len >= sizeof(struct udphdr)) { + struct udphdr *udp = (struct udphdr *)((__u32 *)ixs->iph+ixs->iph->ihl); + if (udp->check == 0) { + KLIPS_PRINT(debug_tunnel, + "klips_debug:ipsec_tunnel_start_xmit: " + "NAT-T & TRANSPORT: UDP checksum already 0\n"); + } + else if (natt_oa) { + __u32 buff[2] = { ~ixs->iph->daddr, natt_oa }; + KLIPS_PRINT(debug_tunnel, + "klips_debug:ipsec_tunnel_start_xmit: " + "NAT-T & TRANSPORT: " + "fix UDP checksum using NAT-OA\n"); + udp->check = csum_fold( + csum_partial((unsigned char *)buff, sizeof(buff), + udp->check^0xffff)); + } + else { + KLIPS_PRINT(debug_tunnel, + "klips_debug:ipsec_tunnel_start_xmit: " + "NAT-T & TRANSPORT: zero UDP checksum\n"); + udp->check = 0; + } + } + else { + KLIPS_PRINT(debug_tunnel, + "klips_debug:ipsec_tunnel_start_xmit: " + "NAT-T & TRANSPORT: can't fix UDP checksum\n"); + } + break; + default: + KLIPS_PRINT(debug_tunnel, + "klips_debug:ipsec_tunnel_start_xmit: " + "NAT-T & TRANSPORT: non TCP/UDP packet -- do nothing\n"); + break; + } + } +#endif /* CONFIG_IPSEC_NAT_TRAVERSAL */ + + if(!ixs->hard_header_stripped && ixs->hard_header_len>0) { + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_encap_bundle: " + "allocating %d bytes for hardheader.\n", + ixs->hard_header_len); + if((ixs->saved_header = kmalloc(ixs->hard_header_len, GFP_ATOMIC)) == NULL) { + printk(KERN_WARNING "klips_debug:ipsec_xmit_encap_bundle: " + "Failed, tried to allocate %d bytes for temp hard_header.\n", + ixs->hard_header_len); + ixs->stats->tx_errors++; + bundle_stat = IPSEC_XMIT_ERRMEMALLOC; + goto cleanup; + } + { + int i; + for (i = 0; i < ixs->hard_header_len; i++) { + ixs->saved_header[i] = ixs->skb->data[i]; + } + } + if(ixs->skb->len < ixs->hard_header_len) { + printk(KERN_WARNING "klips_error:ipsec_xmit_encap_bundle: " + "tried to skb_pull hhlen=%d, %d available. This should never happen, please report.\n", + ixs->hard_header_len, (int)(ixs->skb->len)); + ixs->stats->tx_errors++; + bundle_stat = IPSEC_XMIT_ESP_PUSHPULLERR; + goto cleanup; + } + skb_pull(ixs->skb, ixs->hard_header_len); + ixs->hard_header_stripped = 1; + +/* ixs->iph = (struct iphdr *) (ixs->skb->data); */ + KLIPS_PRINT(debug_tunnel & DB_TN_CROUT, + "klips_debug:ipsec_xmit_encap_bundle: " + "head,tailroom: %d,%d after hard_header stripped.\n", + skb_headroom(ixs->skb), skb_tailroom(ixs->skb)); + KLIPS_IP_PRINT(debug_tunnel & DB_TN_CROUT, ixs->iph); + } else { + KLIPS_PRINT(debug_tunnel & DB_TN_CROUT, + "klips_debug:ipsec_xmit_encap_bundle: " + "hard header already stripped.\n"); + } + + ixs->ll_headroom = (ixs->hard_header_len + 15) & ~15; + + if ((skb_headroom(ixs->skb) >= ixs->max_headroom + 2 * ixs->ll_headroom) && + (skb_tailroom(ixs->skb) >= ixs->max_tailroom) +#ifndef NET_21 + && ixs->skb->free +#endif /* !NET_21 */ + ) { + KLIPS_PRINT(debug_tunnel & DB_TN_CROUT, + "klips_debug:ipsec_xmit_encap_bundle: " + "data fits in existing skb\n"); + } else { + struct sk_buff* tskb; + + if(!ixs->oskb) { + ixs->oskb = ixs->skb; + } + + tskb = skb_copy_expand(ixs->skb, + /* The need for 2 * link layer length here remains unexplained...RGB */ + ixs->max_headroom + 2 * ixs->ll_headroom, + ixs->max_tailroom, + GFP_ATOMIC); + + if(tskb && ixs->skb->sk) { + skb_set_owner_w(tskb, ixs->skb->sk); + } + + if(ixs->skb != ixs->oskb) { + ipsec_kfree_skb(ixs->skb); + } + ixs->skb = tskb; + if (!ixs->skb) { + printk(KERN_WARNING + "klips_debug:ipsec_xmit_encap_bundle: " + "Failed, tried to allocate %d head and %d tailroom\n", + ixs->max_headroom, ixs->max_tailroom); + ixs->stats->tx_errors++; + bundle_stat = IPSEC_XMIT_ERRSKBALLOC; + goto cleanup; + } + KLIPS_PRINT(debug_tunnel & DB_TN_CROUT, + "klips_debug:ipsec_xmit_encap_bundle: " + "head,tailroom: %d,%d after allocation\n", + skb_headroom(ixs->skb), skb_tailroom(ixs->skb)); + } +#ifdef CONFIG_KLIPS_DEBUG + if(debug_tunnel & DB_TN_ENCAP) { + ipsec_print_ip(ixs->iph); + } +#endif + + /* + * Apply grouped transforms to packet + */ + while (ixs->ipsp) { + enum ipsec_xmit_value encap_stat = IPSEC_XMIT_OK; + + encap_stat = ipsec_xmit_encap_once(ixs); +#ifdef CONFIG_KLIPS_DEBUG + if(debug_tunnel & DB_TN_ENCAP) { + ipsec_print_ip(ixs->iph); + } +#endif + + if(encap_stat != IPSEC_XMIT_OK) { + KLIPS_PRINT(debug_tunnel & DB_TN_XMIT, + "klips_debug:ipsec_xmit_encap_bundle: encap_once failed: %d\n", + encap_stat); + + bundle_stat = IPSEC_XMIT_ENCAPFAIL; + goto cleanup; + } + } + + /* we are done with this SA */ + ipsec_sa_put(ixs->ipsp); + + /* end encapsulation loop here XXX */ + cleanup: + spin_unlock(&tdb_lock); + return bundle_stat; +} + +/* + * $Log: ipsec_xmit.c,v $ + * Revision 1.20.2.9 2007/07/06 17:18:43 paul + * Fix for authentication field on sent packets has size equals to zero when + * using custom auth algorithms. This is bug #811. Patch by "iamscared". + * + * Revision 1.20.2.8 2006/10/06 21:39:26 paul + * Fix for 2.6.18+ only include linux/config.h if AUTOCONF_INCLUDED is not + * set. This is defined through autoconf.h which is included through the + * linux kernel build macros. + * + * Revision 1.20.2.7 2006/08/24 03:02:01 paul + * Compile fixes for when CONFIG_KLIPS_DEBUG is not set. (bug #642) + * + * Revision 1.20.2.6 2006/07/07 22:09:49 paul + * From: Bart Trojanowski + * Removing a left over '#else' that split another '#if/#endif' block in two. + * + * Revision 1.20.2.5 2006/07/07 15:43:17 paul + * From: Bart Trojanowski + * improved protocol detection in ipsec_print_ip() -- a debug aid. + * + * Revision 1.20.2.4 2006/04/20 16:33:07 mcr + * remove all of CONFIG_KLIPS_ALG --- one can no longer build without it. + * Fix in-kernel module compilation. Sub-makefiles do not work. + * + * Revision 1.20.2.3 2005/11/29 21:52:57 ken + * Fix for #518 MTU issues + * + * Revision 1.20.2.2 2005/11/27 21:41:03 paul + * Pull down TTL fixes from head. this fixes "Unknown symbol sysctl_ip_default_ttl"in for klips as module. + * + * Revision 1.20.2.1 2005/08/27 23:40:00 paul + * recommited HAVE_SOCK_SECURITY fixes for linux 2.6.13 + * + * Revision 1.20 2005/07/12 15:39:27 paul + * include asm/uaccess.h for VERIFY_WRITE + * + * Revision 1.19 2005/05/24 01:02:35 mcr + * some refactoring/simplification of situation where alg + * is not found. + * + * Revision 1.18 2005/05/23 23:52:33 mcr + * adjust comments, add additional debugging. + * + * Revision 1.17 2005/05/23 22:57:23 mcr + * removed explicit 3DES support. + * + * Revision 1.16 2005/05/21 03:29:15 mcr + * fixed warning about unused zeroes if AH is off. + * + * Revision 1.15 2005/05/20 16:47:59 mcr + * include asm/checksum.h to get ip_fast_csum macro. + * + * Revision 1.14 2005/05/11 01:43:03 mcr + * removed "poor-man"s OOP in favour of proper C structures. + * + * Revision 1.13 2005/04/29 05:10:22 mcr + * removed from extraenous includes to make unit testing easier. + * + * Revision 1.12 2005/04/15 01:28:34 mcr + * use ipsec_dmp_block. + * + * Revision 1.11 2005/01/26 00:50:35 mcr + * adjustment of confusion of CONFIG_IPSEC_NAT vs CONFIG_KLIPS_NAT, + * and make sure that NAT_TRAVERSAL is set as well to match + * userspace compiles of code. + * + * Revision 1.10 2004/09/13 17:55:21 ken + * MD5* -> osMD5* + * + * Revision 1.9 2004/07/10 19:11:18 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.8 2004/04/06 02:49:26 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.7 2004/02/03 03:13:41 mcr + * mark invalid encapsulation states. + * + * Revision 1.6.2.1 2003/12/22 15:25:52 jjo + * Merged algo-0.8.1-rc11-test1 into alg-branch + * + * Revision 1.6 2003/12/10 01:14:27 mcr + * NAT-traversal patches to KLIPS. + * + * Revision 1.5 2003/10/31 02:27:55 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.4.4.2 2003/10/29 01:37:39 mcr + * when creating %hold from %trap, only make the %hold as + * specific as the %trap was - so if the protocol and ports + * were wildcards, then the %hold will be too. + * + * Revision 1.4.4.1 2003/09/21 13:59:56 mcr + * pre-liminary X.509 patch - does not yet pass tests. + * + * Revision 1.4 2003/06/20 02:28:10 mcr + * misstype of variable name, not detected by module build. + * + * Revision 1.3 2003/06/20 01:42:21 mcr + * added counters to measure how many ACQUIREs we send to pluto, + * and how many are successfully sent. + * + * Revision 1.2 2003/04/03 17:38:35 rgb + * Centralised ipsec_kfree_skb and ipsec_dev_{get,put}. + * Normalised coding style. + * Simplified logic and reduced duplication of code. + * + * Revision 1.1 2003/02/12 19:31:23 rgb + * Refactored from ipsec_tunnel.c + * + * Local Variables: + * c-file-style: "linux" + * End: + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/match586.S Mon Feb 9 13:51:03 2004 @@ -0,0 +1,357 @@ +/* match.s -- Pentium-optimized version of longest_match() + * Written for zlib 1.1.2 + * Copyright (C) 1998 Brian Raiter + * + * This is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License. + */ + +#ifndef NO_UNDERLINE +#define match_init _ipcomp_match_init +#define longest_match _ipcomp_longest_match +#else +#define match_init ipcomp_match_init +#define longest_match ipcomp_longest_match +#endif + +#define MAX_MATCH (258) +#define MIN_MATCH (3) +#define MIN_LOOKAHEAD (MAX_MATCH + MIN_MATCH + 1) +#define MAX_MATCH_8 ((MAX_MATCH + 7) & ~7) + +/* stack frame offsets */ + +#define wmask 0 /* local copy of s->wmask */ +#define window 4 /* local copy of s->window */ +#define windowbestlen 8 /* s->window + bestlen */ +#define chainlenscanend 12 /* high word: current chain len */ + /* low word: last bytes sought */ +#define scanstart 16 /* first two bytes of string */ +#define scanalign 20 /* dword-misalignment of string */ +#define nicematch 24 /* a good enough match size */ +#define bestlen 28 /* size of best match so far */ +#define scan 32 /* ptr to string wanting match */ + +#define LocalVarsSize (36) +/* saved ebx 36 */ +/* saved edi 40 */ +/* saved esi 44 */ +/* saved ebp 48 */ +/* return address 52 */ +#define deflatestate 56 /* the function arguments */ +#define curmatch 60 + +/* Offsets for fields in the deflate_state structure. These numbers + * are calculated from the definition of deflate_state, with the + * assumption that the compiler will dword-align the fields. (Thus, + * changing the definition of deflate_state could easily cause this + * program to crash horribly, without so much as a warning at + * compile time. Sigh.) + */ +#define dsWSize 36 +#define dsWMask 44 +#define dsWindow 48 +#define dsPrev 56 +#define dsMatchLen 88 +#define dsPrevMatch 92 +#define dsStrStart 100 +#define dsMatchStart 104 +#define dsLookahead 108 +#define dsPrevLen 112 +#define dsMaxChainLen 116 +#define dsGoodMatch 132 +#define dsNiceMatch 136 + + +.file "match.S" + +.globl match_init, longest_match + +.text + +/* uInt longest_match(deflate_state *deflatestate, IPos curmatch) */ + +longest_match: + +/* Save registers that the compiler may be using, and adjust %esp to */ +/* make room for our stack frame. */ + + pushl %ebp + pushl %edi + pushl %esi + pushl %ebx + subl $LocalVarsSize, %esp + +/* Retrieve the function arguments. %ecx will hold cur_match */ +/* throughout the entire function. %edx will hold the pointer to the */ +/* deflate_state structure during the function's setup (before */ +/* entering the main loop). */ + + movl deflatestate(%esp), %edx + movl curmatch(%esp), %ecx + +/* if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; */ + + movl dsNiceMatch(%edx), %eax + movl dsLookahead(%edx), %ebx + cmpl %eax, %ebx + jl LookaheadLess + movl %eax, %ebx +LookaheadLess: movl %ebx, nicematch(%esp) + +/* register Bytef *scan = s->window + s->strstart; */ + + movl dsWindow(%edx), %esi + movl %esi, window(%esp) + movl dsStrStart(%edx), %ebp + lea (%esi,%ebp), %edi + movl %edi, scan(%esp) + +/* Determine how many bytes the scan ptr is off from being */ +/* dword-aligned. */ + + movl %edi, %eax + negl %eax + andl $3, %eax + movl %eax, scanalign(%esp) + +/* IPos limit = s->strstart > (IPos)MAX_DIST(s) ? */ +/* s->strstart - (IPos)MAX_DIST(s) : NIL; */ + + movl dsWSize(%edx), %eax + subl $MIN_LOOKAHEAD, %eax + subl %eax, %ebp + jg LimitPositive + xorl %ebp, %ebp +LimitPositive: + +/* unsigned chain_length = s->max_chain_length; */ +/* if (s->prev_length >= s->good_match) { */ +/* chain_length >>= 2; */ +/* } */ + + movl dsPrevLen(%edx), %eax + movl dsGoodMatch(%edx), %ebx + cmpl %ebx, %eax + movl dsMaxChainLen(%edx), %ebx + jl LastMatchGood + shrl $2, %ebx +LastMatchGood: + +/* chainlen is decremented once beforehand so that the function can */ +/* use the sign flag instead of the zero flag for the exit test. */ +/* It is then shifted into the high word, to make room for the scanend */ +/* scanend value, which it will always accompany. */ + + decl %ebx + shll $16, %ebx + +/* int best_len = s->prev_length; */ + + movl dsPrevLen(%edx), %eax + movl %eax, bestlen(%esp) + +/* Store the sum of s->window + best_len in %esi locally, and in %esi. */ + + addl %eax, %esi + movl %esi, windowbestlen(%esp) + +/* register ush scan_start = *(ushf*)scan; */ +/* register ush scan_end = *(ushf*)(scan+best_len-1); */ + + movw (%edi), %bx + movw %bx, scanstart(%esp) + movw -1(%edi,%eax), %bx + movl %ebx, chainlenscanend(%esp) + +/* Posf *prev = s->prev; */ +/* uInt wmask = s->w_mask; */ + + movl dsPrev(%edx), %edi + movl dsWMask(%edx), %edx + mov %edx, wmask(%esp) + +/* Jump into the main loop. */ + + jmp LoopEntry + +.balign 16 + +/* do { + * match = s->window + cur_match; + * if (*(ushf*)(match+best_len-1) != scan_end || + * *(ushf*)match != scan_start) continue; + * [...] + * } while ((cur_match = prev[cur_match & wmask]) > limit + * && --chain_length != 0); + * + * Here is the inner loop of the function. The function will spend the + * majority of its time in this loop, and majority of that time will + * be spent in the first ten instructions. + * + * Within this loop: + * %ebx = chainlenscanend - i.e., ((chainlen << 16) | scanend) + * %ecx = curmatch + * %edx = curmatch & wmask + * %esi = windowbestlen - i.e., (window + bestlen) + * %edi = prev + * %ebp = limit + * + * Two optimization notes on the choice of instructions: + * + * The first instruction uses a 16-bit address, which costs an extra, + * unpairable cycle. This is cheaper than doing a 32-bit access and + * zeroing the high word, due to the 3-cycle misalignment penalty which + * would occur half the time. This also turns out to be cheaper than + * doing two separate 8-bit accesses, as the memory is so rarely in the + * L1 cache. + * + * The window buffer, however, apparently spends a lot of time in the + * cache, and so it is faster to retrieve the word at the end of the + * match string with two 8-bit loads. The instructions that test the + * word at the beginning of the match string, however, are executed + * much less frequently, and there it was cheaper to use 16-bit + * instructions, which avoided the necessity of saving off and + * subsequently reloading one of the other registers. + */ +LookupLoop: + /* 1 U & V */ + movw (%edi,%edx,2), %cx /* 2 U pipe */ + movl wmask(%esp), %edx /* 2 V pipe */ + cmpl %ebp, %ecx /* 3 U pipe */ + jbe LeaveNow /* 3 V pipe */ + subl $0x00010000, %ebx /* 4 U pipe */ + js LeaveNow /* 4 V pipe */ +LoopEntry: movb -1(%esi,%ecx), %al /* 5 U pipe */ + andl %ecx, %edx /* 5 V pipe */ + cmpb %bl, %al /* 6 U pipe */ + jnz LookupLoop /* 6 V pipe */ + movb (%esi,%ecx), %ah + cmpb %bh, %ah + jnz LookupLoop + movl window(%esp), %eax + movw (%eax,%ecx), %ax + cmpw scanstart(%esp), %ax + jnz LookupLoop + +/* Store the current value of chainlen. */ + + movl %ebx, chainlenscanend(%esp) + +/* Point %edi to the string under scrutiny, and %esi to the string we */ +/* are hoping to match it up with. In actuality, %esi and %edi are */ +/* both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and %edx is */ +/* initialized to -(MAX_MATCH_8 - scanalign). */ + + movl window(%esp), %esi + movl scan(%esp), %edi + addl %ecx, %esi + movl scanalign(%esp), %eax + movl $(-MAX_MATCH_8), %edx + lea MAX_MATCH_8(%edi,%eax), %edi + lea MAX_MATCH_8(%esi,%eax), %esi + +/* Test the strings for equality, 8 bytes at a time. At the end, + * adjust %edx so that it is offset to the exact byte that mismatched. + * + * We already know at this point that the first three bytes of the + * strings match each other, and they can be safely passed over before + * starting the compare loop. So what this code does is skip over 0-3 + * bytes, as much as necessary in order to dword-align the %edi + * pointer. (%esi will still be misaligned three times out of four.) + * + * It should be confessed that this loop usually does not represent + * much of the total running time. Replacing it with a more + * straightforward "rep cmpsb" would not drastically degrade + * performance. + */ +LoopCmps: + movl (%esi,%edx), %eax + movl (%edi,%edx), %ebx + xorl %ebx, %eax + jnz LeaveLoopCmps + movl 4(%esi,%edx), %eax + movl 4(%edi,%edx), %ebx + xorl %ebx, %eax + jnz LeaveLoopCmps4 + addl $8, %edx + jnz LoopCmps + jmp LenMaximum +LeaveLoopCmps4: addl $4, %edx +LeaveLoopCmps: testl $0x0000FFFF, %eax + jnz LenLower + addl $2, %edx + shrl $16, %eax +LenLower: subb $1, %al + adcl $0, %edx + +/* Calculate the length of the match. If it is longer than MAX_MATCH, */ +/* then automatically accept it as the best possible match and leave. */ + + lea (%edi,%edx), %eax + movl scan(%esp), %edi + subl %edi, %eax + cmpl $MAX_MATCH, %eax + jge LenMaximum + +/* If the length of the match is not longer than the best match we */ +/* have so far, then forget it and return to the lookup loop. */ + + movl deflatestate(%esp), %edx + movl bestlen(%esp), %ebx + cmpl %ebx, %eax + jg LongerMatch + movl chainlenscanend(%esp), %ebx + movl windowbestlen(%esp), %esi + movl dsPrev(%edx), %edi + movl wmask(%esp), %edx + andl %ecx, %edx + jmp LookupLoop + +/* s->match_start = cur_match; */ +/* best_len = len; */ +/* if (len >= nice_match) break; */ +/* scan_end = *(ushf*)(scan+best_len-1); */ + +LongerMatch: movl nicematch(%esp), %ebx + movl %eax, bestlen(%esp) + movl %ecx, dsMatchStart(%edx) + cmpl %ebx, %eax + jge LeaveNow + movl window(%esp), %esi + addl %eax, %esi + movl %esi, windowbestlen(%esp) + movl chainlenscanend(%esp), %ebx + movw -1(%edi,%eax), %bx + movl dsPrev(%edx), %edi + movl %ebx, chainlenscanend(%esp) + movl wmask(%esp), %edx + andl %ecx, %edx + jmp LookupLoop + +/* Accept the current string, with the maximum possible length. */ + +LenMaximum: movl deflatestate(%esp), %edx + movl $MAX_MATCH, bestlen(%esp) + movl %ecx, dsMatchStart(%edx) + +/* if ((uInt)best_len <= s->lookahead) return (uInt)best_len; */ +/* return s->lookahead; */ + +LeaveNow: + movl deflatestate(%esp), %edx + movl bestlen(%esp), %ebx + movl dsLookahead(%edx), %eax + cmpl %eax, %ebx + jg LookaheadRet + movl %ebx, %eax +LookaheadRet: + +/* Restore the stack and return from whence we came. */ + + addl $LocalVarsSize, %esp + popl %ebx + popl %esi + popl %edi + popl %ebp +match_init: ret --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/match686.S Mon Feb 9 13:51:03 2004 @@ -0,0 +1,330 @@ +/* match.s -- Pentium-Pro-optimized version of longest_match() + * Written for zlib 1.1.2 + * Copyright (C) 1998 Brian Raiter + * + * This is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License. + */ + +#ifndef NO_UNDERLINE +#define match_init _ipcomp_match_init +#define longest_match _ipcomp_longest_match +#else +#define match_init ipcomp_match_init +#define longest_match ipcomp_longest_match +#endif + +#define MAX_MATCH (258) +#define MIN_MATCH (3) +#define MIN_LOOKAHEAD (MAX_MATCH + MIN_MATCH + 1) +#define MAX_MATCH_8 ((MAX_MATCH + 7) & ~7) + +/* stack frame offsets */ + +#define chainlenwmask 0 /* high word: current chain len */ + /* low word: s->wmask */ +#define window 4 /* local copy of s->window */ +#define windowbestlen 8 /* s->window + bestlen */ +#define scanstart 16 /* first two bytes of string */ +#define scanend 12 /* last two bytes of string */ +#define scanalign 20 /* dword-misalignment of string */ +#define nicematch 24 /* a good enough match size */ +#define bestlen 28 /* size of best match so far */ +#define scan 32 /* ptr to string wanting match */ + +#define LocalVarsSize (36) +/* saved ebx 36 */ +/* saved edi 40 */ +/* saved esi 44 */ +/* saved ebp 48 */ +/* return address 52 */ +#define deflatestate 56 /* the function arguments */ +#define curmatch 60 + +/* Offsets for fields in the deflate_state structure. These numbers + * are calculated from the definition of deflate_state, with the + * assumption that the compiler will dword-align the fields. (Thus, + * changing the definition of deflate_state could easily cause this + * program to crash horribly, without so much as a warning at + * compile time. Sigh.) + */ +#define dsWSize 36 +#define dsWMask 44 +#define dsWindow 48 +#define dsPrev 56 +#define dsMatchLen 88 +#define dsPrevMatch 92 +#define dsStrStart 100 +#define dsMatchStart 104 +#define dsLookahead 108 +#define dsPrevLen 112 +#define dsMaxChainLen 116 +#define dsGoodMatch 132 +#define dsNiceMatch 136 + + +.file "match.S" + +.globl match_init, longest_match + +.text + +/* uInt longest_match(deflate_state *deflatestate, IPos curmatch) */ + +longest_match: + +/* Save registers that the compiler may be using, and adjust %esp to */ +/* make room for our stack frame. */ + + pushl %ebp + pushl %edi + pushl %esi + pushl %ebx + subl $LocalVarsSize, %esp + +/* Retrieve the function arguments. %ecx will hold cur_match */ +/* throughout the entire function. %edx will hold the pointer to the */ +/* deflate_state structure during the function's setup (before */ +/* entering the main loop). */ + + movl deflatestate(%esp), %edx + movl curmatch(%esp), %ecx + +/* uInt wmask = s->w_mask; */ +/* unsigned chain_length = s->max_chain_length; */ +/* if (s->prev_length >= s->good_match) { */ +/* chain_length >>= 2; */ +/* } */ + + movl dsPrevLen(%edx), %eax + movl dsGoodMatch(%edx), %ebx + cmpl %ebx, %eax + movl dsWMask(%edx), %eax + movl dsMaxChainLen(%edx), %ebx + jl LastMatchGood + shrl $2, %ebx +LastMatchGood: + +/* chainlen is decremented once beforehand so that the function can */ +/* use the sign flag instead of the zero flag for the exit test. */ +/* It is then shifted into the high word, to make room for the wmask */ +/* value, which it will always accompany. */ + + decl %ebx + shll $16, %ebx + orl %eax, %ebx + movl %ebx, chainlenwmask(%esp) + +/* if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; */ + + movl dsNiceMatch(%edx), %eax + movl dsLookahead(%edx), %ebx + cmpl %eax, %ebx + jl LookaheadLess + movl %eax, %ebx +LookaheadLess: movl %ebx, nicematch(%esp) + +/* register Bytef *scan = s->window + s->strstart; */ + + movl dsWindow(%edx), %esi + movl %esi, window(%esp) + movl dsStrStart(%edx), %ebp + lea (%esi,%ebp), %edi + movl %edi, scan(%esp) + +/* Determine how many bytes the scan ptr is off from being */ +/* dword-aligned. */ + + movl %edi, %eax + negl %eax + andl $3, %eax + movl %eax, scanalign(%esp) + +/* IPos limit = s->strstart > (IPos)MAX_DIST(s) ? */ +/* s->strstart - (IPos)MAX_DIST(s) : NIL; */ + + movl dsWSize(%edx), %eax + subl $MIN_LOOKAHEAD, %eax + subl %eax, %ebp + jg LimitPositive + xorl %ebp, %ebp +LimitPositive: + +/* int best_len = s->prev_length; */ + + movl dsPrevLen(%edx), %eax + movl %eax, bestlen(%esp) + +/* Store the sum of s->window + best_len in %esi locally, and in %esi. */ + + addl %eax, %esi + movl %esi, windowbestlen(%esp) + +/* register ush scan_start = *(ushf*)scan; */ +/* register ush scan_end = *(ushf*)(scan+best_len-1); */ +/* Posf *prev = s->prev; */ + + movzwl (%edi), %ebx + movl %ebx, scanstart(%esp) + movzwl -1(%edi,%eax), %ebx + movl %ebx, scanend(%esp) + movl dsPrev(%edx), %edi + +/* Jump into the main loop. */ + + movl chainlenwmask(%esp), %edx + jmp LoopEntry + +.balign 16 + +/* do { + * match = s->window + cur_match; + * if (*(ushf*)(match+best_len-1) != scan_end || + * *(ushf*)match != scan_start) continue; + * [...] + * } while ((cur_match = prev[cur_match & wmask]) > limit + * && --chain_length != 0); + * + * Here is the inner loop of the function. The function will spend the + * majority of its time in this loop, and majority of that time will + * be spent in the first ten instructions. + * + * Within this loop: + * %ebx = scanend + * %ecx = curmatch + * %edx = chainlenwmask - i.e., ((chainlen << 16) | wmask) + * %esi = windowbestlen - i.e., (window + bestlen) + * %edi = prev + * %ebp = limit + */ +LookupLoop: + andl %edx, %ecx + movzwl (%edi,%ecx,2), %ecx + cmpl %ebp, %ecx + jbe LeaveNow + subl $0x00010000, %edx + js LeaveNow +LoopEntry: movzwl -1(%esi,%ecx), %eax + cmpl %ebx, %eax + jnz LookupLoop + movl window(%esp), %eax + movzwl (%eax,%ecx), %eax + cmpl scanstart(%esp), %eax + jnz LookupLoop + +/* Store the current value of chainlen. */ + + movl %edx, chainlenwmask(%esp) + +/* Point %edi to the string under scrutiny, and %esi to the string we */ +/* are hoping to match it up with. In actuality, %esi and %edi are */ +/* both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and %edx is */ +/* initialized to -(MAX_MATCH_8 - scanalign). */ + + movl window(%esp), %esi + movl scan(%esp), %edi + addl %ecx, %esi + movl scanalign(%esp), %eax + movl $(-MAX_MATCH_8), %edx + lea MAX_MATCH_8(%edi,%eax), %edi + lea MAX_MATCH_8(%esi,%eax), %esi + +/* Test the strings for equality, 8 bytes at a time. At the end, + * adjust %edx so that it is offset to the exact byte that mismatched. + * + * We already know at this point that the first three bytes of the + * strings match each other, and they can be safely passed over before + * starting the compare loop. So what this code does is skip over 0-3 + * bytes, as much as necessary in order to dword-align the %edi + * pointer. (%esi will still be misaligned three times out of four.) + * + * It should be confessed that this loop usually does not represent + * much of the total running time. Replacing it with a more + * straightforward "rep cmpsb" would not drastically degrade + * performance. + */ +LoopCmps: + movl (%esi,%edx), %eax + xorl (%edi,%edx), %eax + jnz LeaveLoopCmps + movl 4(%esi,%edx), %eax + xorl 4(%edi,%edx), %eax + jnz LeaveLoopCmps4 + addl $8, %edx + jnz LoopCmps + jmp LenMaximum +LeaveLoopCmps4: addl $4, %edx +LeaveLoopCmps: testl $0x0000FFFF, %eax + jnz LenLower + addl $2, %edx + shrl $16, %eax +LenLower: subb $1, %al + adcl $0, %edx + +/* Calculate the length of the match. If it is longer than MAX_MATCH, */ +/* then automatically accept it as the best possible match and leave. */ + + lea (%edi,%edx), %eax + movl scan(%esp), %edi + subl %edi, %eax + cmpl $MAX_MATCH, %eax + jge LenMaximum + +/* If the length of the match is not longer than the best match we */ +/* have so far, then forget it and return to the lookup loop. */ + + movl deflatestate(%esp), %edx + movl bestlen(%esp), %ebx + cmpl %ebx, %eax + jg LongerMatch + movl windowbestlen(%esp), %esi + movl dsPrev(%edx), %edi + movl scanend(%esp), %ebx + movl chainlenwmask(%esp), %edx + jmp LookupLoop + +/* s->match_start = cur_match; */ +/* best_len = len; */ +/* if (len >= nice_match) break; */ +/* scan_end = *(ushf*)(scan+best_len-1); */ + +LongerMatch: movl nicematch(%esp), %ebx + movl %eax, bestlen(%esp) + movl %ecx, dsMatchStart(%edx) + cmpl %ebx, %eax + jge LeaveNow + movl window(%esp), %esi + addl %eax, %esi + movl %esi, windowbestlen(%esp) + movzwl -1(%edi,%eax), %ebx + movl dsPrev(%edx), %edi + movl %ebx, scanend(%esp) + movl chainlenwmask(%esp), %edx + jmp LookupLoop + +/* Accept the current string, with the maximum possible length. */ + +LenMaximum: movl deflatestate(%esp), %edx + movl $MAX_MATCH, bestlen(%esp) + movl %ecx, dsMatchStart(%edx) + +/* if ((uInt)best_len <= s->lookahead) return (uInt)best_len; */ +/* return s->lookahead; */ + +LeaveNow: + movl deflatestate(%esp), %edx + movl bestlen(%esp), %ebx + movl dsLookahead(%edx), %eax + cmpl %eax, %ebx + jg LookaheadRet + movl %ebx, %eax +LookaheadRet: + +/* Restore the stack and return from whence we came. */ + + addl $LocalVarsSize, %esp + popl %ebx + popl %esi + popl %edi + popl %ebp +match_init: ret --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/null/ipsec_alg_null.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,145 @@ +/* + * ipsec_alg NULL cipher stubs + * + * Author: JuanJo Ciarlante + * + * $Id: ipsec_alg_null.c,v 1.1.2.1 2006/10/11 18:14:33 paul Exp $ + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + */ +#include +#include + +/* + * special case: ipsec core modular with this static algo inside: + * must avoid MODULE magic for this file + */ +#if defined(CONFIG_KLIPS_MODULE) && defined(CONFIG_KLIPS_ENC_NULL) +#undef MODULE +#endif + +#include +#include + +#include /* printk() */ +#include /* error codes */ +#include /* size_t */ +#include + +/* Check if __exit is defined, if not null it */ +#ifndef __exit +#define __exit +#endif + +/* Low freeswan header coupling */ +#include "openswan/ipsec_alg.h" + +#define ESP_NULL 11 /* from ipsec drafts */ +#define ESP_NULL_BLK_LEN 1 + +MODULE_AUTHOR("JuanJo Ciarlante "); +static int debug_null=0; +static int test_null=0; +#ifdef module_param +module_param(debug_null, int, 0600); +module_param(test_null, int, 0600); +#else +MODULE_PARM(debug_null, "i"); +MODULE_PARM(test_null, "i"); +#endif + +typedef int null_context; + +struct null_eks{ + null_context null_ctx; +}; +static int _null_set_key(struct ipsec_alg_enc *alg, + __u8 * key_e, const __u8 * key, + size_t keysize) { + null_context *ctx=&((struct null_eks*)key_e)->null_ctx; + if (debug_null > 0) + printk(KERN_DEBUG "klips_debug:_null_set_key:" + "key_e=%p key=%p keysize=%d\n", + key_e, key, keysize); + *ctx = 1; + return 0; +} +static int _null_cbc_encrypt(struct ipsec_alg_enc *alg, + __u8 * key_e, __u8 * in, int ilen, const __u8 * iv, + int encrypt) { + null_context *ctx=&((struct null_eks*)key_e)->null_ctx; + if (debug_null > 0) + printk(KERN_DEBUG "klips_debug:_null_cbc_encrypt:" + "key_e=%p in=%p ilen=%d iv=%p encrypt=%d\n", + key_e, in, ilen, iv, encrypt); + (*ctx)++; + return ilen; +} +static struct ipsec_alg_enc ipsec_alg_NULL = { + ixt_common: { ixt_version: IPSEC_ALG_VERSION, + ixt_refcnt: ATOMIC_INIT(0), + ixt_name: "null", + ixt_blocksize: ESP_NULL_BLK_LEN, + ixt_support: { + ias_exttype: IPSEC_ALG_TYPE_ENCRYPT, + ias_id: ESP_NULL, + ias_ivlen: 0, + ias_keyminbits: 0, + ias_keymaxbits: 0, + }, + }, +#if defined(CONFIG_KLIPS_ENC_NULL_MODULE) + ixt_module: THIS_MODULE, +#endif + ixt_e_keylen: 0, + ixt_e_ctx_size: sizeof(null_context), + ixt_e_set_key: _null_set_key, + ixt_e_cbc_encrypt:_null_cbc_encrypt, +}; + +#if defined(CONFIG_KLIPS_ENC_NULL_MODULE) +IPSEC_ALG_MODULE_INIT_MOD( ipsec_null_init ) +#else +IPSEC_ALG_MODULE_INIT_STATIC( ipsec_null_init ) +#endif +{ + int ret, test_ret; + ret=register_ipsec_alg_enc(&ipsec_alg_NULL); + printk("ipsec_null_init(alg_type=%d alg_id=%d name=%s): ret=%d\n", + ipsec_alg_NULL.ixt_common.ixt_support.ias_exttype, + ipsec_alg_NULL.ixt_common.ixt_support.ias_id, + ipsec_alg_NULL.ixt_common.ixt_name, + ret); + if (ret==0 && test_null) { + test_ret=ipsec_alg_test( + ipsec_alg_NULL.ixt_common.ixt_support.ias_exttype, + ipsec_alg_NULL.ixt_common.ixt_support.ias_id, + test_null); + printk("ipsec_null_init(alg_type=%d alg_id=%d): test_ret=%d\n", + ipsec_alg_NULL.ixt_common.ixt_support.ias_exttype, + ipsec_alg_NULL.ixt_common.ixt_support.ias_id, + test_ret); + } + return ret; +} +#if defined(CONFIG_KLIPS_ENC_NULL_MODULE) +IPSEC_ALG_MODULE_EXIT_MOD( ipsec_null_fini ) +#else +IPSEC_ALG_MODULE_EXIT_STATIC( ipsec_null_fini ) +#endif +{ + unregister_ipsec_alg_enc(&ipsec_alg_NULL); + return; +} +#ifdef MODULE_LICENSE +MODULE_LICENSE("GPL"); +#endif --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/pfkey_v2.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,2022 @@ +/* + * @(#) RFC2367 PF_KEYv2 Key management API domain socket I/F + * Copyright (C) 1999, 2000, 2001 Richard Guy Briggs. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: pfkey_v2.c,v 1.97.2.12 2006/11/24 05:43:29 paul Exp $ + */ + +/* + * Template from /usr/src/linux-2.0.36/net/unix/af_unix.c. + * Hints from /usr/src/linux-2.0.36/net/ipv4/udp.c. + */ + +#define __NO_VERSION__ +#include +#include +#ifndef AUTOCONF_INCLUDED +#include +#endif +#include + +#include "openswan/ipsec_param.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include /* struct socket */ +#include +#include +#ifdef MALLOC_SLAB +# include /* kmalloc() */ +#else /* MALLOC_SLAB */ +# include /* kmalloc() */ +#endif /* MALLOC_SLAB */ +#include +#include +#include +#include /* struct sock */ +#include +/* #include */ +#include +#ifdef CONFIG_PROC_FS +# include +#endif /* CONFIG_PROC_FS */ + +#include + +#include + +#include "openswan/radij.h" +#include "openswan/ipsec_encap.h" +#include "openswan/ipsec_sa.h" + +#include +#include + +#include "openswan/ipsec_proto.h" +#include "openswan/ipsec_kern24.h" + +#ifdef CONFIG_KLIPS_DEBUG +int debug_pfkey = 0; +extern int sysctl_ipsec_debug_verbose; +#endif /* CONFIG_KLIPS_DEBUG */ + +#define SENDERR(_x) do { error = -(_x); goto errlab; } while (0) + +#ifndef SOCKOPS_WRAPPED +#define SOCKOPS_WRAPPED(name) name +#endif /* SOCKOPS_WRAPPED */ + +#ifdef NET_26 +static rwlock_t pfkey_sock_lock = RW_LOCK_UNLOCKED; +HLIST_HEAD(pfkey_sock_list); +static DECLARE_WAIT_QUEUE_HEAD(pfkey_sock_wait); +static atomic_t pfkey_sock_users = ATOMIC_INIT(0); +#else +struct sock *pfkey_sock_list = NULL; +#endif + +struct supported_list *pfkey_supported_list[SADB_SATYPE_MAX+1]; + +struct socket_list *pfkey_open_sockets = NULL; +struct socket_list *pfkey_registered_sockets[SADB_SATYPE_MAX+1]; + +int pfkey_msg_interp(struct sock *, struct sadb_msg *, struct sadb_msg **); + +DEBUG_NO_STATIC int pfkey_create(struct socket *sock, int protocol); +DEBUG_NO_STATIC int pfkey_shutdown(struct socket *sock, int mode); +DEBUG_NO_STATIC int pfkey_release(struct socket *sock); + +#ifdef NET_26 +DEBUG_NO_STATIC int pfkey_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len); +DEBUG_NO_STATIC int pfkey_recvmsg(struct kiocb *kiocb, struct socket *sock, struct msghdr *msg + , size_t size, int flags); +#else +DEBUG_NO_STATIC int pfkey_sendmsg(struct socket *sock, struct msghdr *msg, int len, struct scm_cookie *scm); +DEBUG_NO_STATIC int pfkey_recvmsg(struct socket *sock, struct msghdr *msg, int size, int flags, struct scm_cookie *scm); +#endif + +struct net_proto_family pfkey_family_ops = { +#ifdef NETDEV_23 + .family = PF_KEY, + .create = pfkey_create, +#ifdef NET_26 + .owner = THIS_MODULE, +#endif +#else + PF_KEY, + pfkey_create +#endif +}; + +struct proto_ops SOCKOPS_WRAPPED(pfkey_ops) = { +#ifdef NETDEV_23 + family: PF_KEY, +#ifdef NET_26 + owner: THIS_MODULE, +#endif + release: pfkey_release, + bind: sock_no_bind, + connect: sock_no_connect, + socketpair: sock_no_socketpair, + accept: sock_no_accept, + getname: sock_no_getname, + poll: datagram_poll, + ioctl: sock_no_ioctl, + listen: sock_no_listen, + shutdown: pfkey_shutdown, + setsockopt: sock_no_setsockopt, + getsockopt: sock_no_getsockopt, + sendmsg: pfkey_sendmsg, + recvmsg: pfkey_recvmsg, + mmap: sock_no_mmap, +#else /* NETDEV_23 */ + PF_KEY, + sock_no_dup, + pfkey_release, + sock_no_bind, + sock_no_connect, + sock_no_socketpair, + sock_no_accept, + sock_no_getname, + datagram_poll, + sock_no_ioctl, + sock_no_listen, + pfkey_shutdown, + sock_no_setsockopt, + sock_no_getsockopt, + sock_no_fcntl, + pfkey_sendmsg, + pfkey_recvmsg +#endif /* NETDEV_23 */ +}; + +#ifdef NETDEV_23 +#include +SOCKOPS_WRAP(pfkey, PF_KEY); +#endif /* NETDEV_23 */ + +#ifdef NET_26 +static void pfkey_sock_list_grab(void) +{ + write_lock_bh(&pfkey_sock_lock); + + if (atomic_read(&pfkey_sock_users)) { + DECLARE_WAITQUEUE(wait, current); + + add_wait_queue_exclusive(&pfkey_sock_wait, &wait); + for(;;) { + set_current_state(TASK_UNINTERRUPTIBLE); + if (atomic_read(&pfkey_sock_users) == 0) + break; + write_unlock_bh(&pfkey_sock_lock); + schedule(); + write_lock_bh(&pfkey_sock_lock); + } + + __set_current_state(TASK_RUNNING); + remove_wait_queue(&pfkey_sock_wait, &wait); + } +} + +static __inline__ void pfkey_sock_list_ungrab(void) +{ + write_unlock_bh(&pfkey_sock_lock); + wake_up(&pfkey_sock_wait); +} + +static __inline__ void pfkey_lock_sock_list(void) +{ + /* read_lock() synchronizes us to pfkey_table_grab */ + + read_lock(&pfkey_sock_lock); + atomic_inc(&pfkey_sock_users); + read_unlock(&pfkey_sock_lock); +} + +static __inline__ void pfkey_unlock_sock_list(void) +{ + if (atomic_dec_and_test(&pfkey_sock_users)) + wake_up(&pfkey_sock_wait); +} +#endif + +int +pfkey_list_remove_socket(struct socket *socketp, struct socket_list **sockets) +{ + struct socket_list *socket_listp,*prev; + + if(!socketp) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_list_remove_socket: " + "NULL socketp handed in, failed.\n"); + return -EINVAL; + } + + if(!sockets) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_list_remove_socket: " + "NULL sockets list handed in, failed.\n"); + return -EINVAL; + } + + socket_listp = *sockets; + prev = NULL; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_list_remove_socket: " + "removing sock=0p%p\n", + socketp); + + while(socket_listp != NULL) { + if(socket_listp->socketp == socketp) { + if(prev != NULL) { + prev->next = socket_listp->next; + } else { + *sockets = socket_listp->next; + } + + kfree((void*)socket_listp); + + break; + } + prev = socket_listp; + socket_listp = socket_listp->next; + } + + return 0; +} + +int +pfkey_list_insert_socket(struct socket *socketp, struct socket_list **sockets) +{ + struct socket_list *socket_listp; + + if(!socketp) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_list_insert_socket: " + "NULL socketp handed in, failed.\n"); + return -EINVAL; + } + + if(!sockets) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_list_insert_socket: " + "NULL sockets list handed in, failed.\n"); + return -EINVAL; + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_list_insert_socket: " + "allocating %lu bytes for socketp=0p%p\n", + (unsigned long) sizeof(struct socket_list), + socketp); + + if((socket_listp = (struct socket_list *)kmalloc(sizeof(struct socket_list), GFP_KERNEL)) == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_list_insert_socket: " + "memory allocation error.\n"); + return -ENOMEM; + } + + socket_listp->socketp = socketp; + socket_listp->next = *sockets; + *sockets = socket_listp; + + return 0; +} + +int +pfkey_list_remove_supported(struct ipsec_alg_supported *supported, struct supported_list **supported_list) +{ + struct supported_list *supported_listp = *supported_list, *prev = NULL; + + if(!supported) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_list_remove_supported: " + "NULL supported handed in, failed.\n"); + return -EINVAL; + } + + if(!supported_list) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_list_remove_supported: " + "NULL supported_list handed in, failed.\n"); + return -EINVAL; + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_list_remove_supported: " + "removing supported=0p%p\n", + supported); + + while(supported_listp != NULL) { + if(supported_listp->supportedp == supported) { + if(prev != NULL) { + prev->next = supported_listp->next; + } else { + *supported_list = supported_listp->next; + } + + kfree((void*)supported_listp); + + break; + } + prev = supported_listp; + supported_listp = supported_listp->next; + } + + return 0; +} + +int +pfkey_list_insert_supported(struct ipsec_alg_supported *supported + , struct supported_list **supported_list) +{ + struct supported_list *supported_listp; + + if(!supported) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_list_insert_supported: " + "NULL supported handed in, failed.\n"); + return -EINVAL; + } + + if(!supported_list) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_list_insert_supported: " + "NULL supported_list handed in, failed.\n"); + return -EINVAL; + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_list_insert_supported: " + "allocating %lu bytes for incoming, supported=0p%p, supported_list=0p%p\n", + (unsigned long) sizeof(struct supported_list), + supported, + supported_list); + + supported_listp = (struct supported_list *)kmalloc(sizeof(struct supported_list), GFP_KERNEL); + + if(supported_listp == NULL) + { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_list_insert_supported: " + "memory allocation error.\n"); + return -ENOMEM; + } + + supported_listp->supportedp = supported; + supported_listp->next = *supported_list; + *supported_list = supported_listp; + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_list_insert_supported: " + "outgoing, supported=0p%p, supported_list=0p%p\n", + supported, + supported_list); + + return 0; +} + +#ifdef NET_26 +DEBUG_NO_STATIC void +pfkey_insert_socket(struct sock *sk) +{ + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_insert_socket: " + "sk=0p%p\n", + sk); + pfkey_sock_list_grab(); + sk_add_node(sk, &pfkey_sock_list); + pfkey_sock_list_ungrab(); +} + +DEBUG_NO_STATIC void +pfkey_remove_socket(struct sock *sk) +{ + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_remove_socket: 0p%p\n", sk); + pfkey_sock_list_grab(); + sk_del_node_init(sk); + pfkey_sock_list_ungrab(); + return; +} +#else + +DEBUG_NO_STATIC void +pfkey_insert_socket(struct sock *sk) +{ + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_insert_socket: " + "sk=0p%p\n", + sk); + cli(); + sk->next=pfkey_sock_list; + pfkey_sock_list=sk; + sti(); +} +DEBUG_NO_STATIC void +pfkey_remove_socket(struct sock *sk) +{ + struct sock **s; + + s = NULL; + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_remove_socket: .\n"); + + cli(); + s=&pfkey_sock_list; + + while(*s!=NULL) { + if(*s==sk) { + *s=sk->next; + sk->next=NULL; + sti(); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_remove_socket: " + "succeeded.\n"); + return; + } + s=&((*s)->next); + } + sti(); + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_remove_socket: " + "not found.\n"); + return; +} +#endif + +DEBUG_NO_STATIC void +pfkey_destroy_socket(struct sock *sk) +{ + struct sk_buff *skb; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_destroy_socket: 0p%p\n",sk); + pfkey_remove_socket(sk); + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_destroy_socket: " + "pfkey_remove_socket called, sk=0p%p\n",sk); + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_destroy_socket: " + "sk(0p%p)->(&0p%p)receive_queue.{next=0p%p,prev=0p%p}.\n", + sk, + &(sk->sk_receive_queue), + sk->sk_receive_queue.next, + sk->sk_receive_queue.prev); + + while(sk && ((skb=skb_dequeue(&(sk->sk_receive_queue)))!=NULL)) { +#ifdef CONFIG_KLIPS_DEBUG + if(debug_pfkey && sysctl_ipsec_debug_verbose) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_destroy_socket: " + "skb=0p%p dequeued.\n", skb); + printk(KERN_INFO "klips_debug:pfkey_destroy_socket: " + "pfkey_skb contents:"); + printk(" next:0p%p", skb->next); + printk(" prev:0p%p", skb->prev); + printk(" sk:0p%p", skb->sk); + printk(" dev:0p%p", skb->dev); + if(skb->dev) { + if(skb->dev->name) { + printk(" dev->name:%s", skb->dev->name); + } else { + printk(" dev->name:NULL?"); + } + } else { + printk(" dev:NULL"); + } + printk(" h:0p%p", skb->h.raw); + printk(" nh:0p%p", skb->nh.raw); + printk(" mac:0p%p", skb->mac.raw); + printk(" dst:0p%p", skb->dst); + if(sysctl_ipsec_debug_verbose) { + int i; + + printk(" cb"); + for(i=0; i<48; i++) { + printk(":%2x", skb->cb[i]); + } + } + printk(" len:%d", skb->len); + printk(" csum:%d", skb->csum); +#ifndef NETDEV_23 + printk(" used:%d", skb->used); + printk(" is_clone:%d", skb->is_clone); +#endif /* NETDEV_23 */ + printk(" cloned:%d", skb->cloned); + printk(" pkt_type:%d", skb->pkt_type); + printk(" ip_summed:%d", skb->ip_summed); + printk(" priority:%d", skb->priority); + printk(" protocol:%d", skb->protocol); +#ifdef HAVE_SOCK_SECURITY + printk(" security:%d", skb->security); +#endif + printk(" truesize:%d", skb->truesize); + printk(" head:0p%p", skb->head); + printk(" data:0p%p", skb->data); + printk(" tail:0p%p", skb->tail); + printk(" end:0p%p", skb->end); + if(sysctl_ipsec_debug_verbose) { + unsigned char* i; + printk(" data"); + for(i = skb->head; i < skb->end; i++) { + printk(":%2x", (unsigned char)(*(i))); + } + } + printk(" destructor:0p%p", skb->destructor); + printk("\n"); + } +#endif /* CONFIG_KLIPS_DEBUG */ + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_destroy_socket: " + "skb=0p%p freed.\n", + skb); + ipsec_kfree_skb(skb); + } + +#ifdef NET_26 + sock_set_flag(sk, SOCK_DEAD); +#else + sk->dead = 1; +#endif + sk_free(sk); + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_destroy_socket: destroyed.\n"); +} + +int +pfkey_upmsg(struct socket *sock, struct sadb_msg *pfkey_msg) +{ + int error = 0; + struct sk_buff * skb = NULL; + struct sock *sk; + + if(sock == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_upmsg: " + "NULL socket passed in.\n"); + return -EINVAL; + } + + if(pfkey_msg == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_upmsg: " + "NULL pfkey_msg passed in.\n"); + return -EINVAL; + } + + sk = sock->sk; + + if(sk == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_upmsg: " + "NULL sock passed in.\n"); + return -EINVAL; + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_upmsg: " + "allocating %d bytes...\n", + (int)(pfkey_msg->sadb_msg_len * IPSEC_PFKEYv2_ALIGN)); + if(!(skb = alloc_skb(pfkey_msg->sadb_msg_len * IPSEC_PFKEYv2_ALIGN, GFP_ATOMIC) )) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_upmsg: " + "no buffers left to send up a message.\n"); + return -ENOBUFS; + } + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_upmsg: " + "...allocated at 0p%p.\n", + skb); + + skb->dev = NULL; + + if(skb_tailroom(skb) < pfkey_msg->sadb_msg_len * IPSEC_PFKEYv2_ALIGN) { + printk(KERN_WARNING "klips_error:pfkey_upmsg: " + "tried to skb_put %ld, %d available. This should never happen, please report.\n", + (unsigned long int)pfkey_msg->sadb_msg_len * IPSEC_PFKEYv2_ALIGN, + skb_tailroom(skb)); + ipsec_kfree_skb(skb); + return -ENOBUFS; + } + skb->h.raw = skb_put(skb, pfkey_msg->sadb_msg_len * IPSEC_PFKEYv2_ALIGN); + memcpy(skb->h.raw, pfkey_msg, pfkey_msg->sadb_msg_len * IPSEC_PFKEYv2_ALIGN); + + if((error = sock_queue_rcv_skb(sk, skb)) < 0) { + skb->sk=NULL; + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_upmsg: " + "error=%d calling sock_queue_rcv_skb with skb=0p%p.\n", + error, + skb); + ipsec_kfree_skb(skb); + return error; + } + return error; +} + +#ifdef NET_26_12_SKALLOC +static struct proto key_proto = { + .name = "KEY", + .owner = THIS_MODULE, + .obj_size = sizeof(struct sock), + +}; +#endif + +DEBUG_NO_STATIC int +pfkey_create(struct socket *sock, int protocol) +{ + struct sock *sk; + + if(sock == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_create: " + "socket NULL.\n"); + return -EINVAL; + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_create: " + "sock=0p%p type:%d state:%d flags:%ld protocol:%d\n", + sock, + sock->type, + (unsigned int)(sock->state), + sock->flags, protocol); + + if(sock->type != SOCK_RAW) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_create: " + "only SOCK_RAW supported.\n"); + return -ESOCKTNOSUPPORT; + } + + if(protocol != PF_KEY_V2) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_create: " + "protocol not PF_KEY_V2.\n"); + return -EPROTONOSUPPORT; + } + + if((current->uid != 0)) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_create: " + "must be root to open pfkey sockets.\n"); + return -EACCES; + } + + sock->state = SS_UNCONNECTED; + + KLIPS_INC_USE; + +#ifdef NET_26 +#ifdef NET_26_12_SKALLOC + sk=(struct sock *)sk_alloc(PF_KEY, GFP_KERNEL, &key_proto, 1); +#else + sk=(struct sock *)sk_alloc(PF_KEY, GFP_KERNEL, 1, NULL); +#endif +#else + /* 2.4 interface */ + sk=(struct sock *)sk_alloc(PF_KEY, GFP_KERNEL, 1); +#endif + + if(sk == NULL) + { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_create: " + "Out of memory trying to allocate.\n"); + KLIPS_DEC_USE; + return -ENOMEM; + } + + sock_init_data(sock, sk); + + sk->sk_destruct = NULL; + sk->sk_reuse = 1; + sock->ops = &pfkey_ops; + + sk->sk_family = PF_KEY; +/* sk->num = protocol; */ + sk->sk_protocol = protocol; + key_pid(sk) = current->pid; + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_create: " + "sock->fasync_list=0p%p sk->sleep=0p%p.\n", + sock->fasync_list, + sk->sk_sleep); + + pfkey_insert_socket(sk); + pfkey_list_insert_socket(sock, &pfkey_open_sockets); + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_create: " + "Socket sock=0p%p sk=0p%p initialised.\n", sock, sk); + return 0; +} + +DEBUG_NO_STATIC int +#ifdef NETDEV_23 +pfkey_release(struct socket *sock) +#else /* NETDEV_23 */ +pfkey_release(struct socket *sock, struct socket *peersock) +#endif /* NETDEV_23 */ +{ + struct sock *sk; + int i; + + if(sock==NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_release: " + "No socket attached.\n"); + return 0; /* -EINVAL; */ + } + + sk=sock->sk; + + /* May not have data attached */ + if(sk==NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_release: " + "No sk attached to sock=0p%p.\n", sock); + return 0; /* -EINVAL; */ + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_release: " + "sock=0p%p sk=0p%p\n", sock, sk); + + if(sock_flag(sk, SOCK_DEAD)) + if(sk->sk_state_change) { + sk->sk_state_change(sk); + } + + sock->sk = NULL; + + /* Try to flush out this socket. Throw out buffers at least */ + pfkey_destroy_socket(sk); + pfkey_list_remove_socket(sock, &pfkey_open_sockets); + for(i = SADB_SATYPE_UNSPEC; i <= SADB_SATYPE_MAX; i++) { + pfkey_list_remove_socket(sock, &(pfkey_registered_sockets[i])); + } + + KLIPS_DEC_USE; + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_release: " + "succeeded.\n"); + + return 0; +} + +DEBUG_NO_STATIC int +pfkey_shutdown(struct socket *sock, int mode) +{ + struct sock *sk; + + if(sock == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_shutdown: " + "NULL socket passed in.\n"); + return -EINVAL; + } + + sk=sock->sk; + + if(sk == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_shutdown: " + "No sock attached to socket.\n"); + return -EINVAL; + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_shutdown: " + "mode=%x.\n", mode); + mode++; + + if(mode&SEND_SHUTDOWN) { + sk->sk_shutdown|=SEND_SHUTDOWN; + sk->sk_state_change(sk); + } + + if(mode&RCV_SHUTDOWN) { + sk->sk_shutdown|=RCV_SHUTDOWN; + sk->sk_state_change(sk); + } + return 0; +} + +/* + * Send PF_KEY data down. + */ + +DEBUG_NO_STATIC int +#ifdef NET_26 +pfkey_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len) +#else +pfkey_sendmsg(struct socket *sock, struct msghdr *msg, int len, struct scm_cookie *scm) +#endif +{ + struct sock *sk; + int error = 0; + struct sadb_msg *pfkey_msg = NULL, *pfkey_reply = NULL; + + if(sock == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sendmsg: " + "Null socket passed in.\n"); + SENDERR(EINVAL); + } + + sk = sock->sk; + + if(sk == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sendmsg: " + "Null sock passed in.\n"); + SENDERR(EINVAL); + } + + if(msg == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sendmsg: " + "Null msghdr passed in.\n"); + SENDERR(EINVAL); + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sendmsg: .\n"); + if(sk->sk_err) { + error = sock_error(sk); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sendmsg: " + "sk->err is non-zero, returns %d.\n", + error); + SENDERR(-error); + } + + if((current->uid != 0)) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sendmsg: " + "must be root to send messages to pfkey sockets.\n"); + SENDERR(EACCES); + } + + if(msg->msg_control) + { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sendmsg: " + "can't set flags or set msg_control.\n"); + SENDERR(EINVAL); + } + + if(sk->sk_shutdown & SEND_SHUTDOWN) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sendmsg: " + "shutdown.\n"); + send_sig(SIGPIPE, current, 0); + SENDERR(EPIPE); + } + + if(len < sizeof(struct sadb_msg)) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sendmsg: " + "bogus msg len of %d, too small.\n", (int)len); + SENDERR(EMSGSIZE); + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sendmsg: " + "allocating %d bytes for downward message.\n", + (int)len); + if((pfkey_msg = (struct sadb_msg*)kmalloc(len, GFP_KERNEL)) == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sendmsg: " + "memory allocation error.\n"); + SENDERR(ENOBUFS); + } + + memcpy_fromiovec((void *)pfkey_msg, msg->msg_iov, len); + + if(pfkey_msg->sadb_msg_version != PF_KEY_V2) { + KLIPS_PRINT(1 || debug_pfkey, + "klips_debug:pfkey_sendmsg: " + "not PF_KEY_V2 msg, found %d, should be %d.\n", + pfkey_msg->sadb_msg_version, + PF_KEY_V2); + kfree((void*)pfkey_msg); + return -EINVAL; + } + + if(len != pfkey_msg->sadb_msg_len * IPSEC_PFKEYv2_ALIGN) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sendmsg: " + "bogus msg len of %d, not %d byte aligned.\n", + (int)len, (int)IPSEC_PFKEYv2_ALIGN); + SENDERR(EMSGSIZE); + } + +#if 0 + /* This check is questionable, since a downward message could be + the result of an ACQUIRE either from kernel (PID==0) or + userspace (some other PID). */ + /* check PID */ + if(pfkey_msg->sadb_msg_pid != current->pid) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sendmsg: " + "pid (%d) does not equal sending process pid (%d).\n", + pfkey_msg->sadb_msg_pid, current->pid); + SENDERR(EINVAL); + } +#endif + + if(pfkey_msg->sadb_msg_reserved) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sendmsg: " + "reserved field must be zero, set to %d.\n", + pfkey_msg->sadb_msg_reserved); + SENDERR(EINVAL); + } + + if((pfkey_msg->sadb_msg_type > SADB_MAX) || (!pfkey_msg->sadb_msg_type)){ + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sendmsg: " + "msg type too large or small:%d.\n", + pfkey_msg->sadb_msg_type); + SENDERR(EINVAL); + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sendmsg: " + "msg sent for parsing.\n"); + + if((error = pfkey_msg_interp(sk, pfkey_msg, &pfkey_reply))) { + struct socket_list *pfkey_socketsp; + + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_sendmsg: " + "pfkey_msg_parse returns %d.\n", + error); + + if((pfkey_reply = (struct sadb_msg*)kmalloc(sizeof(struct sadb_msg), GFP_KERNEL)) == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sendmsg: " + "memory allocation error.\n"); + SENDERR(ENOBUFS); + } + memcpy((void*)pfkey_reply, (void*)pfkey_msg, sizeof(struct sadb_msg)); + pfkey_reply->sadb_msg_errno = -error; + pfkey_reply->sadb_msg_len = sizeof(struct sadb_msg) / IPSEC_PFKEYv2_ALIGN; + + for(pfkey_socketsp = pfkey_open_sockets; + pfkey_socketsp; + pfkey_socketsp = pfkey_socketsp->next) { + int error_upmsg = 0; + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_sendmsg: " + "sending up error=%d message=0p%p to socket=0p%p.\n", + error, + pfkey_reply, + pfkey_socketsp->socketp); + if((error_upmsg = pfkey_upmsg(pfkey_socketsp->socketp, pfkey_reply))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_sendmsg: " + "sending up error message to socket=0p%p failed with error=%d.\n", + pfkey_socketsp->socketp, + error_upmsg); + /* pfkey_msg_free(&pfkey_reply); */ + /* SENDERR(-error); */ + } + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_sendmsg: " + "sending up error message to socket=0p%p succeeded.\n", + pfkey_socketsp->socketp); + } + + pfkey_msg_free(&pfkey_reply); + + SENDERR(-error); + } + + errlab: + if (pfkey_msg) { + kfree((void*)pfkey_msg); + } + + if(error) { + return error; + } else { + return len; + } +} + +/* + * Receive PF_KEY data up. + */ + +DEBUG_NO_STATIC int +#ifdef NET_26 +pfkey_recvmsg(struct kiocb *kiocb + , struct socket *sock + , struct msghdr *msg + , size_t size + , int flags) +#else +pfkey_recvmsg(struct socket *sock + , struct msghdr *msg + , int size, int flags + , struct scm_cookie *scm) +#endif +{ + struct sock *sk; + int noblock = flags & MSG_DONTWAIT; + struct sk_buff *skb; + int error; + + if(sock == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_recvmsg: " + "Null socket passed in.\n"); + return -EINVAL; + } + + sk = sock->sk; + + if(sk == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_recvmsg: " + "Null sock passed in for sock=0p%p.\n", sock); + return -EINVAL; + } + + if(msg == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_recvmsg: " + "Null msghdr passed in for sock=0p%p, sk=0p%p.\n", + sock, sk); + return -EINVAL; + } + + KLIPS_PRINT(debug_pfkey && sysctl_ipsec_debug_verbose, + "klips_debug:pfkey_recvmsg: sock=0p%p sk=0p%p msg=0p%p size=%d.\n", + sock, sk, msg, (int)size); + if(flags & ~MSG_PEEK) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sendmsg: " + "flags (%d) other than MSG_PEEK not supported.\n", + flags); + return -EOPNOTSUPP; + } + + msg->msg_namelen = 0; /* sizeof(*ska); */ + + if(sk->sk_err) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sendmsg: " + "sk->sk_err=%d.\n", sk->sk_err); + return sock_error(sk); + } + + if((skb = skb_recv_datagram(sk, flags, noblock, &error) ) == NULL) { + return error; + } + + if(size > skb->len) { + size = skb->len; + } + else if(size len) { + msg->msg_flags |= MSG_TRUNC; + } + + skb_copy_datagram_iovec(skb, 0, msg->msg_iov, size); +#ifdef HAVE_TSTAMP + sk->sk_stamp.tv_sec = skb->tstamp.off_sec; + sk->sk_stamp.tv_usec = skb->tstamp.off_usec; +#else + sk->sk_stamp=skb->stamp; +#endif + + skb_free_datagram(sk, skb); + return size; +} + +#ifdef CONFIG_PROC_FS +#ifndef PROC_FS_2325 +DEBUG_NO_STATIC +#endif /* PROC_FS_2325 */ +int +pfkey_get_info(char *buffer, char **start, off_t offset, int length +#ifndef PROC_NO_DUMMY +, int dummy +#endif /* !PROC_NO_DUMMY */ +) +{ + const int max_content = length > 0? length-1 : 0; /* limit of useful snprintf output */ +#ifdef NET_26 + struct hlist_node *node; +#endif + off_t begin=0; + int len=0; + struct sock *sk; + +#ifdef CONFIG_KLIPS_DEBUG + if(!sysctl_ipsec_debug_verbose) { +#endif /* CONFIG_KLIPS_DEBUG */ + len += ipsec_snprintf(buffer, length, + " sock pid socket next prev e n p sndbf Flags Type St\n"); +#ifdef CONFIG_KLIPS_DEBUG + } else { + len += ipsec_snprintf(buffer, length, + " sock pid d sleep socket next prev e r z n p sndbf stamp Flags Type St\n"); + } +#endif /* CONFIG_KLIPS_DEBUG */ + + sk_for_each(sk, node, &pfkey_sock_list) { + +#ifdef CONFIG_KLIPS_DEBUG + if(!sysctl_ipsec_debug_verbose) { +#endif /* CONFIG_KLIPS_DEBUG */ + len += ipsec_snprintf(buffer+len, length-len, + "%8p %5d %8p %d %d %5d %08lX %8X %2X\n", + sk, + key_pid(sk), + sk->sk_socket, + sk->sk_err, + sk->sk_protocol, + sk->sk_sndbuf, + sk->sk_socket->flags, + sk->sk_socket->type, + sk->sk_socket->state); +#ifdef CONFIG_KLIPS_DEBUG + } else { + len += ipsec_snprintf(buffer+len, length-len, + "%8p %5d %d %8p %8p %d %d %d %d %5d %d.%06d %08lX %8X %2X\n", + sk, + key_pid(sk), + sock_flag(sk, SOCK_DEAD), + sk->sk_sleep, + sk->sk_socket, + sk->sk_err, + sk->sk_reuse, +#ifdef HAVE_SOCK_ZAPPED + sock_flag(sk, SOCK_ZAPPED), +#else + sk->sk_zapped, +#endif + sk->sk_protocol, + sk->sk_sndbuf, + (unsigned int)sk->sk_stamp.tv_sec, + (unsigned int)sk->sk_stamp.tv_usec, + sk->sk_socket->flags, + sk->sk_socket->type, + sk->sk_socket->state); + } +#endif /* CONFIG_KLIPS_DEBUG */ + + if (len >= max_content) { + /* we've done all that can fit -- stop loop */ + len = max_content; /* truncate crap */ + break; + } else { + const off_t pos = begin + len; /* file position of end of what we've generated */ + + if (pos <= offset) { + /* all is before first interesting character: + * discard, but note where we are. + */ + len = 0; + begin = pos; + } + } + } + + *start = buffer + (offset - begin); /* Start of wanted data */ + return len - (offset - begin); +} + +#ifndef PROC_FS_2325 +DEBUG_NO_STATIC +#endif /* PROC_FS_2325 */ +int +pfkey_supported_get_info(char *buffer, char **start, off_t offset, int length +#ifndef PROC_NO_DUMMY +, int dummy +#endif /* !PROC_NO_DUMMY */ +) +{ + /* limit of useful snprintf output */ + const int max_content = length > 0? length-1 : 0; + off_t begin=0; + int len=0; + int satype; + struct supported_list *ps; + + len += ipsec_snprintf(buffer, length, + "satype exttype alg_id ivlen minbits maxbits name\n"); + + for(satype = SADB_SATYPE_UNSPEC; satype <= SADB_SATYPE_MAX; satype++) { + ps = pfkey_supported_list[satype]; + while(ps) { + struct ipsec_alg_supported *alg = ps->supportedp; + unsigned char *n = alg->ias_name; + if(n == NULL) n = "unknown"; + + len += ipsec_snprintf(buffer+len, length-len, + " %2d %2d %2d %3d %3d %3d %20s\n", + satype, + alg->ias_exttype, + alg->ias_id, + alg->ias_ivlen, + alg->ias_keyminbits, + alg->ias_keymaxbits, + n); + + if (len >= max_content) { + /* we've done all that can fit -- stop loop */ + len = max_content; /* truncate crap */ + break; + } else { + const off_t pos = begin + len; /* file position of end of what we've generated */ + + if (pos <= offset) { + /* all is before first interesting character: + * discard, but note where we are. + */ + len = 0; + begin = pos; + } + } + + ps = ps->next; + } + } + *start = buffer + (offset - begin); /* Start of wanted data */ + return len - (offset - begin); +} + +#ifndef PROC_FS_2325 +DEBUG_NO_STATIC +#endif /* PROC_FS_2325 */ +int +pfkey_registered_get_info(char *buffer, char **start, off_t offset, int length +#ifndef PROC_NO_DUMMY +, int dummy +#endif /* !PROC_NO_DUMMY */ +) +{ + const int max_content = length > 0? length-1 : 0; /* limit of useful snprintf output */ + off_t begin=0; + int len=0; + int satype; + struct socket_list *pfkey_sockets; + + len += ipsec_snprintf(buffer, length, + "satype socket pid sk\n"); + + for(satype = SADB_SATYPE_UNSPEC; satype <= SADB_SATYPE_MAX; satype++) { + pfkey_sockets = pfkey_registered_sockets[satype]; + while(pfkey_sockets) { + len += ipsec_snprintf(buffer+len, length-len, + " %2d %8p %5d %8p\n", + satype, + pfkey_sockets->socketp, + key_pid(pfkey_sockets->socketp->sk), + pfkey_sockets->socketp->sk); + + if (len >= max_content) { + /* we've done all that can fit -- stop loop (could stop two) */ + len = max_content; /* truncate crap */ + break; + } else { + const off_t pos = begin + len; /* file position of end of what we've generated */ + + if (pos <= offset) { + /* all is before first interesting character: + * discard, but note where we are. + */ + len = 0; + begin = pos; + } + } + + pfkey_sockets = pfkey_sockets->next; + } + } + *start = buffer + (offset - begin); /* Start of wanted data */ + return len - (offset - begin); +} + +#ifndef PROC_FS_2325 +struct proc_dir_entry proc_net_pfkey = +{ + 0, + 6, "pf_key", + S_IFREG | S_IRUGO, 1, 0, 0, + 0, &proc_net_inode_operations, + pfkey_get_info +}; +struct proc_dir_entry proc_net_pfkey_supported = +{ + 0, + 16, "pf_key_supported", + S_IFREG | S_IRUGO, 1, 0, 0, + 0, &proc_net_inode_operations, + pfkey_supported_get_info +}; +struct proc_dir_entry proc_net_pfkey_registered = +{ + 0, + 17, "pf_key_registered", + S_IFREG | S_IRUGO, 1, 0, 0, + 0, &proc_net_inode_operations, + pfkey_registered_get_info +}; +#endif /* !PROC_FS_2325 */ +#endif /* CONFIG_PROC_FS */ + +DEBUG_NO_STATIC int +supported_add_all(int satype, struct ipsec_alg_supported supported[], int size) +{ + int i; + int error = 0; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:init_pfkey: " + "sizeof(supported_init_)[%d]/sizeof(struct ipsec_alg_supported)[%d]=%d.\n", + satype, + size, + (int)sizeof(struct ipsec_alg_supported), + (int)(size/sizeof(struct ipsec_alg_supported))); + + for(i = 0; i < size / sizeof(struct ipsec_alg_supported); i++) { + + unsigned char *n = supported[i].ias_name; + if(n == NULL) n="unknown"; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:init_pfkey: " + "i=%d inserting satype=%d exttype=%d id=%d ivlen=%d minbits=%d maxbits=%d name=%s.\n", + i, + satype, + supported[i].ias_exttype, + supported[i].ias_id, + supported[i].ias_ivlen, + supported[i].ias_keyminbits, + supported[i].ias_keymaxbits, + n); + + error |= pfkey_list_insert_supported(&(supported[i]), + &(pfkey_supported_list[satype])); + } + return error; +} + +DEBUG_NO_STATIC int +supported_remove_all(int satype) +{ + int error = 0; + struct ipsec_alg_supported*supportedp; + + while(pfkey_supported_list[satype]) { + unsigned char *n; + supportedp = pfkey_supported_list[satype]->supportedp; + + n = supportedp->ias_name; + if(n == NULL) n="unknown"; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:init_pfkey: " + "removing satype=%d exttype=%d id=%d ivlen=%d minbits=%d maxbits=%d name=%s.\n", + satype, + supportedp->ias_exttype, + supportedp->ias_id, + supportedp->ias_ivlen, + supportedp->ias_keyminbits, + supportedp->ias_keymaxbits, n); + + error |= pfkey_list_remove_supported(supportedp, + &(pfkey_supported_list[satype])); + } + return error; +} + +int +pfkey_init(void) +{ + int error = 0; + int i; + + static struct ipsec_alg_supported supported_init_ah[] = { +#ifdef CONFIG_KLIPS_AUTH_HMAC_MD5 + {SADB_EXT_SUPPORTED_AUTH, SADB_AALG_MD5HMAC, 0, 128, 128}, +#endif /* CONFIG_KLIPS_AUTH_HMAC_MD5 */ +#ifdef CONFIG_KLIPS_AUTH_HMAC_SHA1 + {SADB_EXT_SUPPORTED_AUTH, SADB_AALG_SHA1HMAC, 0, 160, 160} +#endif /* CONFIG_KLIPS_AUTH_HMAC_SHA1 */ + }; + static struct ipsec_alg_supported supported_init_esp[] = { +#ifdef CONFIG_KLIPS_AUTH_HMAC_MD5 + {SADB_EXT_SUPPORTED_AUTH, SADB_AALG_MD5HMAC, 0, 128, 128}, +#endif /* CONFIG_KLIPS_AUTH_HMAC_MD5 */ +#ifdef CONFIG_KLIPS_AUTH_HMAC_SHA1 + {SADB_EXT_SUPPORTED_AUTH, SADB_AALG_SHA1HMAC, 0, 160, 160}, +#endif /* CONFIG_KLIPS_AUTH_HMAC_SHA1 */ +#ifdef CONFIG_KLIPS_ENC_3DES + {SADB_EXT_SUPPORTED_ENCRYPT, SADB_EALG_3DESCBC, 64, 168, 168}, +#endif /* CONFIG_KLIPS_ENC_3DES */ + }; + static struct ipsec_alg_supported supported_init_ipip[] = { + {SADB_EXT_SUPPORTED_ENCRYPT, SADB_X_TALG_IPv4_in_IPv4, 0, 32, 32} +#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) + , {SADB_EXT_SUPPORTED_ENCRYPT, SADB_X_TALG_IPv6_in_IPv4, 0, 128, 32} + , {SADB_EXT_SUPPORTED_ENCRYPT, SADB_X_TALG_IPv4_in_IPv6, 0, 32, 128} + , {SADB_EXT_SUPPORTED_ENCRYPT, SADB_X_TALG_IPv6_in_IPv6, 0, 128, 128} +#endif /* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */ + }; +#ifdef CONFIG_KLIPS_IPCOMP + static struct ipsec_alg_supported supported_init_ipcomp[] = { + {SADB_EXT_SUPPORTED_ENCRYPT, SADB_X_CALG_DEFLATE, 0, 1, 1} + }; +#endif /* CONFIG_KLIPS_IPCOMP */ + +#if 0 + printk(KERN_INFO + "klips_info:pfkey_init: " + "FreeS/WAN: initialising PF_KEYv2 domain sockets.\n"); +#endif + + for(i = SADB_SATYPE_UNSPEC; i <= SADB_SATYPE_MAX; i++) { + pfkey_registered_sockets[i] = NULL; + pfkey_supported_list[i] = NULL; + } + + error |= supported_add_all(SADB_SATYPE_AH, supported_init_ah, sizeof(supported_init_ah)); + error |= supported_add_all(SADB_SATYPE_ESP, supported_init_esp, sizeof(supported_init_esp)); +#ifdef CONFIG_KLIPS_IPCOMP + error |= supported_add_all(SADB_X_SATYPE_COMP, supported_init_ipcomp, sizeof(supported_init_ipcomp)); +#endif /* CONFIG_KLIPS_IPCOMP */ + error |= supported_add_all(SADB_X_SATYPE_IPIP, supported_init_ipip, sizeof(supported_init_ipip)); + + error |= sock_register(&pfkey_family_ops); + +#ifdef CONFIG_PROC_FS +# ifndef PROC_FS_2325 +# ifdef PROC_FS_21 + error |= proc_register(proc_net, &proc_net_pfkey); + error |= proc_register(proc_net, &proc_net_pfkey_supported); + error |= proc_register(proc_net, &proc_net_pfkey_registered); +# else /* PROC_FS_21 */ + error |= proc_register_dynamic(&proc_net, &proc_net_pfkey); + error |= proc_register_dynamic(&proc_net, &proc_net_pfkey_supported); + error |= proc_register_dynamic(&proc_net, &proc_net_pfkey_registered); +# endif /* PROC_FS_21 */ +# else /* !PROC_FS_2325 */ + proc_net_create ("pf_key", 0, pfkey_get_info); + proc_net_create ("pf_key_supported", 0, pfkey_supported_get_info); + proc_net_create ("pf_key_registered", 0, pfkey_registered_get_info); +# endif /* !PROC_FS_2325 */ +#endif /* CONFIG_PROC_FS */ + + return error; +} + +int +pfkey_cleanup(void) +{ + int error = 0; + + printk(KERN_INFO "klips_info:pfkey_cleanup: " + "shutting down PF_KEY domain sockets.\n"); + sock_unregister(PF_KEY); + + error |= supported_remove_all(SADB_SATYPE_AH); + error |= supported_remove_all(SADB_SATYPE_ESP); +#ifdef CONFIG_KLIPS_IPCOMP + error |= supported_remove_all(SADB_X_SATYPE_COMP); +#endif /* CONFIG_KLIPS_IPCOMP */ + error |= supported_remove_all(SADB_X_SATYPE_IPIP); + +#ifdef CONFIG_PROC_FS +# ifndef PROC_FS_2325 + if (proc_net_unregister(proc_net_pfkey.low_ino) != 0) + printk("klips_debug:pfkey_cleanup: " + "cannot unregister /proc/net/pf_key\n"); + if (proc_net_unregister(proc_net_pfkey_supported.low_ino) != 0) + printk("klips_debug:pfkey_cleanup: " + "cannot unregister /proc/net/pf_key_supported\n"); + if (proc_net_unregister(proc_net_pfkey_registered.low_ino) != 0) + printk("klips_debug:pfkey_cleanup: " + "cannot unregister /proc/net/pf_key_registered\n"); +# else /* !PROC_FS_2325 */ + proc_net_remove ("pf_key"); + proc_net_remove ("pf_key_supported"); + proc_net_remove ("pf_key_registered"); +# endif /* !PROC_FS_2325 */ +#endif /* CONFIG_PROC_FS */ + + /* other module unloading cleanup happens here */ + return error; +} + +#ifdef MODULE +#if 0 +int +init_module(void) +{ + pfkey_init(); + return 0; +} + +void +cleanup_module(void) +{ + pfkey_cleanup(); +} +#endif /* 0 */ +#else /* MODULE */ +struct net_protocol; +void pfkey_proto_init(struct net_protocol *pro) +{ + pfkey_init(); +} +#endif /* MODULE */ + +/* + * $Log: pfkey_v2.c,v $ + * Revision 1.97.2.12 2006/11/24 05:43:29 paul + * kernels after 2.6.18 do not return a code from unregister_socket() + * backport from git 41e54a2684dc809d7952e816860ea646a3194a72 + * + * Revision 1.97.2.11 2006/11/15 16:05:57 paul + * fix for compiling on 2.4. kernels by Matthias Haas. + * + * Revision 1.97.2.10 2006/10/10 20:43:28 paul + * Add family/create/owner for pfkey_family_ops. This fixes bug #671 + * + * Revision 1.97.2.9 2006/10/06 21:39:26 paul + * Fix for 2.6.18+ only include linux/config.h if AUTOCONF_INCLUDED is not + * set. This is defined through autoconf.h which is included through the + * linux kernel build macros. + * + * Revision 1.97.2.8 2006/07/10 15:56:11 paul + * Fix for bug #642 by Bart. + * + * Revision 1.97.2.7 2006/04/04 11:34:19 ken + * Backport SMP fixes + #ifdef cleanup from #public + * + * Revision 1.97.2.6 2006/02/15 05:00:20 paul + * Fix for crasher on 2.6.12+ with klips (mostly seen on redhat kernels) + * + * Revision 1.97.2.5 2005/11/22 04:11:52 ken + * Backport fixes for 2.6.14 kernels from HEAD + * + * Revision 1.97.2.4 2005/09/14 16:40:45 mcr + * pull up of compilation on 2.4 + * + * Revision 1.97.2.3 2005/09/06 02:10:03 mcr + * pulled up possible SMP-related compilation fix + * + * Revision 1.97.2.2 2005/08/28 01:21:12 paul + * Undid Ken's gcc4 fix in version 1.94 since it breaks linking KLIPS on + * SMP kernels. + * + * Revision 1.97.2.1 2005/08/27 23:40:00 paul + * recommited HAVE_SOCK_SECURITY fixes for linux 2.6.13 + * + * Revision 1.102 2005/09/14 16:37:23 mcr + * fix to compile on 2.4. + * + * Revision 1.101 2005/09/06 01:42:25 mcr + * removed additional SOCKOPS_WRAPPED code + * + * Revision 1.100 2005/08/30 18:10:15 mcr + * remove SOCKOPS_WRAPPED() code, add proper locking to the + * pfkey code. (cross fingers) + * + * Revision 1.99 2005/08/28 01:53:37 paul + * Undid Ken's gcc4 fix in version 1.94 since it breaks linking KLIPS on SMP kernels. + * + * Revision 1.98 2005/08/27 23:07:21 paul + * Somewhere between 2.6.12 and 2.6.13rc7 the unused security memnber in sk_buff + * has been removed. This patch should fix compilation for both cases. + * + * Revision 1.97 2005/07/20 00:33:36 mcr + * fixed typo in #ifdef for SKALLOC. + * + * Revision 1.96 2005/07/19 20:02:15 mcr + * sk_alloc() interface change. + * + * Revision 1.95 2005/07/09 00:40:06 ken + * Fix for GCC4 - it doesn't like the potential for duplicate declaration + * + * Revision 1.94 2005/07/09 00:14:04 ken + * Casts for 64bit cleanliness + * + * Revision 1.93 2005/07/08 16:20:05 mcr + * fix for 2.6.12 disapperance of sk_zapped field -> sock_flags. + * + * Revision 1.92 2005/05/21 03:29:39 mcr + * fixed missing prototype definition. + * + * Revision 1.91 2005/05/11 01:43:45 mcr + * removed "poor-man"s OOP in favour of proper C structures. + * + * Revision 1.90 2005/05/02 18:42:47 mcr + * fix for cut&paste error with pfkey_v2.c "supported_name" + * + * Revision 1.89 2005/05/01 03:12:31 mcr + * print name if it is available. + * + * Revision 1.88 2005/04/29 05:10:22 mcr + * removed from extraenous includes to make unit testing easier. + * + * Revision 1.87 2005/04/15 19:57:10 mcr + * make sure that address has 0p so that it will + * sanitized. + * + * Revision 1.86 2005/04/08 18:28:36 mcr + * some minor #ifdef simplification in pursuit of a possible bug. + * + * Revision 1.85 2004/12/03 21:25:57 mcr + * compile time fixes for running on 2.6. + * still experimental. + * + * Revision 1.84 2004/08/17 03:27:23 mcr + * klips 2.6 edits. + * + * Revision 1.83 2004/08/04 15:57:07 mcr + * moved des .h files to include/des/ * + * included 2.6 protocol specific things + * started at NAT-T support, but it will require a kernel patch. + * + * Revision 1.82 2004/07/10 19:11:18 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.81 2004/04/25 21:23:11 ken + * Pull in dhr's changes from FreeS/WAN 2.06 + * + * Revision 1.80 2004/04/06 02:49:26 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.79.4.1 2003/12/22 15:25:52 jjo + * . Merged algo-0.8.1-rc11-test1 into alg-branch + * + * Revision 1.79 2003/10/31 02:27:55 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.78.4.1 2003/10/29 01:30:41 mcr + * elimited "struct sa_id". + * + * Revision 1.78 2003/04/03 17:38:09 rgb + * Centralised ipsec_kfree_skb and ipsec_dev_{get,put}. + * + * Revision 1.77 2002/10/17 16:49:36 mcr + * sock->ops should reference the unwrapped options so that + * we get hacked in locking on SMP systems. + * + * Revision 1.76 2002/10/12 23:11:53 dhr + * + * [KenB + DHR] more 64-bit cleanup + * + * Revision 1.75 2002/09/20 05:01:57 rgb + * Added memory allocation debugging. + * + * Revision 1.74 2002/09/19 02:42:50 mcr + * do not define the pfkey_ops function for now. + * + * Revision 1.73 2002/09/17 17:29:23 mcr + * #if 0 out some dead code - pfkey_ops is never used as written. + * + * Revision 1.72 2002/07/24 18:44:54 rgb + * Type fiddling to tame ia64 compiler. + * + * Revision 1.71 2002/05/23 07:14:11 rgb + * Cleaned up %p variants to 0p%p for test suite cleanup. + * + * Revision 1.70 2002/04/24 07:55:32 mcr + * #include patches and Makefiles for post-reorg compilation. + * + * Revision 1.69 2002/04/24 07:36:33 mcr + * Moved from ./klips/net/ipsec/pfkey_v2.c,v + * + * Revision 1.68 2002/03/08 01:15:17 mcr + * put some internal structure only debug messages behind + * && sysctl_ipsec_debug_verbose. + * + * Revision 1.67 2002/01/29 17:17:57 mcr + * moved include of ipsec_param.h to after include of linux/kernel.h + * otherwise, it seems that some option that is set in ipsec_param.h + * screws up something subtle in the include path to kernel.h, and + * it complains on the snprintf() prototype. + * + * Revision 1.66 2002/01/29 04:00:54 mcr + * more excise of kversions.h header. + * + * Revision 1.65 2002/01/29 02:13:18 mcr + * introduction of ipsec_kversion.h means that include of + * ipsec_param.h must preceed any decisions about what files to + * include to deal with differences in kernel source. + * + * Revision 1.64 2001/11/26 09:23:51 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.61.2.1 2001/09/25 02:28:44 mcr + * cleaned up includes. + * + * Revision 1.63 2001/11/12 19:38:00 rgb + * Continue trying other sockets even if one fails and return only original + * error. + * + * Revision 1.62 2001/10/18 04:45:22 rgb + * 2.4.9 kernel deprecates linux/malloc.h in favour of linux/slab.h, + * lib/freeswan.h version macros moved to lib/kversions.h. + * Other compiler directive cleanups. + * + * Revision 1.61 2001/09/20 15:32:59 rgb + * Min/max cleanup. + * + * Revision 1.60 2001/06/14 19:35:12 rgb + * Update copyright date. + * + * Revision 1.59 2001/06/13 15:35:48 rgb + * Fixed #endif comments. + * + * Revision 1.58 2001/05/04 16:37:24 rgb + * Remove erroneous checking of return codes for proc_net_* in 2.4. + * + * Revision 1.57 2001/05/03 19:43:36 rgb + * Initialise error return variable. + * Check error return codes in startup and shutdown. + * Standardise on SENDERR() macro. + * + * Revision 1.56 2001/04/21 23:05:07 rgb + * Define out skb->used for 2.4 kernels. + * + * Revision 1.55 2001/02/28 05:03:28 rgb + * Clean up and rationalise startup messages. + * + * Revision 1.54 2001/02/27 22:24:55 rgb + * Re-formatting debug output (line-splitting, joining, 1arg/line). + * Check for satoa() return codes. + * + * Revision 1.53 2001/02/27 06:48:18 rgb + * Fixed pfkey socket unregister log message to reflect type and function. + * + * Revision 1.52 2001/02/26 22:34:38 rgb + * Fix error return code that was getting overwritten by the error return + * code of an upmsg. + * + * Revision 1.51 2001/01/30 23:42:47 rgb + * Allow pfkey msgs from pid other than user context required for ACQUIRE + * and subsequent ADD or UDATE. + * + * Revision 1.50 2001/01/23 20:22:59 rgb + * 2.4 fix to remove removed is_clone member. + * + * Revision 1.49 2000/11/06 04:33:47 rgb + * Changed non-exported functions to DEBUG_NO_STATIC. + * + * Revision 1.48 2000/09/29 19:47:41 rgb + * Update copyright. + * + * Revision 1.47 2000/09/22 04:23:04 rgb + * Added more debugging to pfkey_upmsg() call from pfkey_sendmsg() error. + * + * Revision 1.46 2000/09/21 04:20:44 rgb + * Fixed array size off-by-one error. (Thanks Svenning!) + * + * Revision 1.45 2000/09/20 04:01:26 rgb + * Changed static functions to DEBUG_NO_STATIC for revealing function names + * in oopsen. + * + * Revision 1.44 2000/09/19 00:33:17 rgb + * 2.0 fixes. + * + * Revision 1.43 2000/09/16 01:28:13 rgb + * Fixed use of 0 in p format warning. + * + * Revision 1.42 2000/09/16 01:09:41 rgb + * Fixed debug format warning for pointers that was expecting ints. + * + * Revision 1.41 2000/09/13 15:54:00 rgb + * Rewrote pfkey_get_info(), added pfkey_{supported,registered}_get_info(). + * Moved supported algos add and remove to functions. + * + * Revision 1.40 2000/09/12 18:49:28 rgb + * Added IPIP tunnel and IPCOMP register support. + * + * Revision 1.39 2000/09/12 03:23:49 rgb + * Converted #if0 debugs to sysctl. + * Removed debug_pfkey initialisations that prevented no_debug loading or + * linking. + * + * Revision 1.38 2000/09/09 06:38:02 rgb + * Return positive errno in pfkey_reply error message. + * + * Revision 1.37 2000/09/08 19:19:09 rgb + * Change references from DEBUG_IPSEC to CONFIG_IPSEC_DEBUG. + * Clean-up of long-unused crud... + * Create pfkey error message on on failure. + * Give pfkey_list_{insert,remove}_{socket,supported}() some error + * checking. + * + * Revision 1.36 2000/09/01 18:49:38 rgb + * Reap experimental NET_21_ bits. + * Turned registered sockets list into an array of one list per satype. + * Remove references to deprecated sklist_{insert,remove}_socket. + * Removed leaking socket debugging code. + * Removed duplicate pfkey_insert_socket in pfkey_create. + * Removed all references to pfkey msg->msg_name, since it is not used for + * pfkey. + * Added a supported algorithms array lists, one per satype and registered + * existing algorithms. + * Fixed pfkey_list_{insert,remove}_{socket,support}() to allow change to + * list. + * Only send pfkey_expire() messages to sockets registered for that satype. + * + * Revision 1.35 2000/08/24 17:03:00 rgb + * Corrected message size error return code for PF_KEYv2. + * Removed downward error prohibition. + * + * Revision 1.34 2000/08/21 16:32:26 rgb + * Re-formatted for cosmetic consistency and readability. + * + * Revision 1.33 2000/08/20 21:38:24 rgb + * Added a pfkey_reply parameter to pfkey_msg_interp(). (Momchil) + * Extended the upward message initiation of pfkey_sendmsg(). (Momchil) + * + * Revision 1.32 2000/07/28 14:58:31 rgb + * Changed kfree_s to kfree, eliminating extra arg to fix 2.4.0-test5. + * + * Revision 1.31 2000/05/16 03:04:00 rgb + * Updates for 2.3.99pre8 from MB. + * + * Revision 1.30 2000/05/10 19:22:21 rgb + * Use sklist private functions for 2.3.xx compatibility. + * + * Revision 1.29 2000/03/22 16:17:03 rgb + * Fixed SOCKOPS_WRAPPED macro for SMP (MB). + * + * Revision 1.28 2000/02/21 19:30:45 rgb + * Removed references to pkt_bridged for 2.3.47 compatibility. + * + * Revision 1.27 2000/02/14 21:07:00 rgb + * Fixed /proc/net/pf-key legend spacing. + * + * Revision 1.26 2000/01/22 03:46:59 rgb + * Fixed pfkey error return mechanism so that we are able to free the + * local copy of the pfkey_msg, plugging a memory leak and silencing + * the bad object free complaints. + * + * Revision 1.25 2000/01/21 06:19:44 rgb + * Moved pfkey_list_remove_socket() calls to before MOD_USE_DEC_COUNT. + * Added debugging to pfkey_upmsg. + * + * Revision 1.24 2000/01/10 16:38:23 rgb + * MB fixups for 2.3.x. + * + * Revision 1.23 1999/12/09 23:22:16 rgb + * Added more instrumentation for debugging 2.0 socket + * selection/reading. + * Removed erroneous 2.0 wait==NULL check bug in select. + * + * Revision 1.22 1999/12/08 20:32:16 rgb + * Tidied up 2.0.xx support, after major pfkey work, eliminating + * msg->msg_name twiddling in the process, since it is not defined + * for PF_KEYv2. + * + * Revision 1.21 1999/12/01 22:17:19 rgb + * Set skb->dev to zero on new skb in case it is a reused skb. + * Added check for skb_put overflow and freeing to avoid upmsg on error. + * Added check for wrong pfkey version and freeing to avoid upmsg on + * error. + * Shut off content dumping in pfkey_destroy. + * Added debugging message for size of buffer allocated for upmsg. + * + * Revision 1.20 1999/11/27 12:11:00 rgb + * Minor clean-up, enabling quiet operation of pfkey if desired. + * + * Revision 1.19 1999/11/25 19:04:21 rgb + * Update proc_fs code for pfkey to use dynamic registration. + * + * Revision 1.18 1999/11/25 09:07:17 rgb + * Implemented SENDERR macro for propagating error codes. + * Fixed error return code bug. + * + * Revision 1.17 1999/11/23 23:07:20 rgb + * Change name of pfkey_msg_parser to pfkey_msg_interp since it no longer + * parses. (PJO) + * Sort out pfkey and freeswan headers, putting them in a library path. + * + * Revision 1.16 1999/11/20 22:00:22 rgb + * Moved socketlist type declarations and prototypes for shared use. + * Renamed reformatted and generically extended for use by other socket + * lists pfkey_{del,add}_open_socket to pfkey_list_{remove,insert}_socket. + * + * Revision 1.15 1999/11/18 04:15:09 rgb + * Make pfkey_data_ready temporarily available for 2.2.x testing. + * Clean up pfkey_destroy_socket() debugging statements. + * Add Peter Onion's code to send messages up to all listening sockets. + * Changed all occurrences of #include "../../../lib/freeswan.h" + * to #include which works due to -Ilibfreeswan in the + * klips/net/ipsec/Makefile. + * Replaced all kernel version macros to shorter, readable form. + * Added CONFIG_PROC_FS compiler directives in case it is shut off. + * + * Revision 1.14 1999/11/17 16:01:00 rgb + * Make pfkey_data_ready temporarily available for 2.2.x testing. + * Clean up pfkey_destroy_socket() debugging statements. + * Add Peter Onion's code to send messages up to all listening sockets. + * Changed #include "../../../lib/freeswan.h" to #include + * which works due to -Ilibfreeswan in the klips/net/ipsec/Makefile. + * + * Revision 1.13 1999/10/27 19:59:51 rgb + * Removed af_unix comments that are no longer relevant. + * Added debug prink statements. + * Added to the /proc output in pfkey_get_info. + * Made most functions non-static to enable oops tracing. + * Re-enable skb dequeueing and freeing. + * Fix skb_alloc() and skb_put() size bug in pfkey_upmsg(). + * + * Revision 1.12 1999/10/26 17:05:42 rgb + * Complete re-ordering based on proto_ops structure order. + * Separated out proto_ops structures for 2.0.x and 2.2.x for clarity. + * Simplification to use built-in socket ops where possible for 2.2.x. + * Add shorter macros for compiler directives to visually clean-up. + * Add lots of sk skb dequeueing debugging statements. + * Added to the /proc output in pfkey_get_info. + * + * Revision 1.11 1999/09/30 02:55:10 rgb + * Bogus skb detection. + * Fix incorrect /proc/net/ipsec-eroute printk message. + * + * Revision 1.10 1999/09/21 15:22:13 rgb + * Temporary fix while I figure out the right way to destroy sockets. + * + * Revision 1.9 1999/07/08 19:19:44 rgb + * Fix pointer format warning. + * Fix missing member error under 2.0.xx kernels. + * + * Revision 1.8 1999/06/13 07:24:04 rgb + * Add more debugging. + * + * Revision 1.7 1999/06/10 05:24:17 rgb + * Clarified compiler directives. + * Renamed variables to reduce confusion. + * Used sklist_*_socket() kernel functions to simplify 2.2.x socket support. + * Added lots of sanity checking. + * + * Revision 1.6 1999/06/03 18:59:50 rgb + * More updates to 2.2.x socket support. Almost works, oops at end of call. + * + * Revision 1.5 1999/05/25 22:44:05 rgb + * Start fixing 2.2 sockets. + * + * Revision 1.4 1999/04/29 15:21:34 rgb + * Move log to the end of the file. + * Eliminate min/max redefinition in #include . + * Correct path for pfkey #includes + * Standardise an error return method. + * Add debugging instrumentation. + * Move message type checking to pfkey_msg_parse(). + * Add check for errno incorrectly set. + * Add check for valid PID. + * Add check for reserved illegally set. + * Add check for message out of bounds. + * + * Revision 1.3 1999/04/15 17:58:07 rgb + * Add RCSID labels. + * + * Revision 1.2 1999/04/15 15:37:26 rgb + * Forward check changes from POST1_00 branch. + * + * Revision 1.1.2.2 1999/04/13 20:37:12 rgb + * Header Title correction. + * + * Revision 1.1.2.1 1999/03/26 20:58:55 rgb + * Add pfkeyv2 support to KLIPS. + * + * + * RFC 2367 + * PF_KEY_v2 Key Management API + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/pfkey_v2_build.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,1581 @@ +/* + * RFC2367 PF_KEYv2 Key management API message parser + * Copyright (C) 1999, 2000, 2001 Richard Guy Briggs. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: pfkey_v2_build.c,v 1.51.8.1 2006/05/01 14:36:39 mcr Exp $ + */ + +/* + * Template from klips/net/ipsec/ipsec/ipsec_parser.c. + */ + +char pfkey_v2_build_c_version[] = "$Id: pfkey_v2_build.c,v 1.51.8.1 2006/05/01 14:36:39 mcr Exp $"; + +/* + * Some ugly stuff to allow consistent debugging code for use in the + * kernel and in user space +*/ + +#ifdef __KERNEL__ + +# include /* for printk */ + +# include "openswan/ipsec_kversion.h" /* for malloc switch */ +# ifdef MALLOC_SLAB +# include /* kmalloc() */ +# else /* MALLOC_SLAB */ +# include /* kmalloc() */ +# endif /* MALLOC_SLAB */ +# include /* error codes */ +# include /* size_t */ +# include /* mark_bh */ + +# include /* struct device, and other headers */ +# include /* eth_type_trans */ +# include /* struct iphdr */ +# if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) +# include /* struct ipv6hdr */ +# endif /* if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */ + +# define MALLOC(size) kmalloc(size, GFP_ATOMIC) +# define FREE(obj) kfree(obj) +# include +#else /* __KERNEL__ */ + +# include +# include +# include +# include +# include /* memset */ + +# include + +#endif /* __KERNEL__ */ + +#include +#include + +#ifdef __KERNEL__ +#include "openswan/radij.h" /* rd_nodes */ +#include "openswan/ipsec_encap.h" /* sockaddr_encap */ +#endif /* __KERNEL__ */ + + +#include "openswan/ipsec_sa.h" /* IPSEC_SAREF_NULL, IPSEC_SA_REF_TABLE_IDX_WIDTH */ +#include "openswan/pfkey_debug.h" + + +#define SENDERR(_x) do { error = -(_x); goto errlab; } while (0) + +void +pfkey_extensions_init(struct sadb_ext *extensions[SADB_EXT_MAX + 1]) +{ + int i; + + for (i = 0; i != SADB_EXT_MAX + 1; i++) { + extensions[i] = NULL; + } +} + +void +pfkey_extensions_free(struct sadb_ext *extensions[SADB_EXT_MAX + 1]) +{ + int i; + + if(!extensions) { + return; + } + + if(extensions[0]) { + memset(extensions[0], 0, sizeof(struct sadb_msg)); + FREE(extensions[0]); + extensions[0] = NULL; + } + + for (i = 1; i != SADB_EXT_MAX + 1; i++) { + if(extensions[i]) { + memset(extensions[i], 0, extensions[i]->sadb_ext_len * IPSEC_PFKEYv2_ALIGN); + FREE(extensions[i]); + extensions[i] = NULL; + } + } +} + +void +pfkey_msg_free(struct sadb_msg **pfkey_msg) +{ + if(*pfkey_msg) { + memset(*pfkey_msg, 0, (*pfkey_msg)->sadb_msg_len * IPSEC_PFKEYv2_ALIGN); + FREE(*pfkey_msg); + *pfkey_msg = NULL; + } +} + +/* Default extension builders taken from the KLIPS code */ + +int +pfkey_msg_hdr_build(struct sadb_ext** pfkey_ext, + uint8_t msg_type, + uint8_t satype, + uint8_t msg_errno, + uint32_t seq, + uint32_t pid) +{ + int error = 0; + struct sadb_msg *pfkey_msg = (struct sadb_msg *)*pfkey_ext; + + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_msg_hdr_build:\n"); + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_msg_hdr_build: " + "on_entry &pfkey_ext=0p%p pfkey_ext=0p%p *pfkey_ext=0p%p.\n", + &pfkey_ext, + pfkey_ext, + *pfkey_ext); + /* sanity checks... */ + if(pfkey_msg) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_msg_hdr_build: " + "why is pfkey_msg already pointing to something?\n"); + SENDERR(EINVAL); + } + + if(!msg_type) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_msg_hdr_build: " + "msg type not set, must be non-zero..\n"); + SENDERR(EINVAL); + } + + if(msg_type > SADB_MAX) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_msg_hdr_build: " + "msg type too large:%d.\n", + msg_type); + SENDERR(EINVAL); + } + + if(satype > SADB_SATYPE_MAX) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_msg_hdr_build: " + "satype %d > max %d\n", + satype, SADB_SATYPE_MAX); + SENDERR(EINVAL); + } + + pfkey_msg = (struct sadb_msg*)MALLOC(sizeof(struct sadb_msg)); + *pfkey_ext = (struct sadb_ext*)pfkey_msg; + + if(pfkey_msg == NULL) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_msg_hdr_build: " + "memory allocation failed\n"); + SENDERR(ENOMEM); + } + memset(pfkey_msg, 0, sizeof(struct sadb_msg)); + + pfkey_msg->sadb_msg_len = sizeof(struct sadb_msg) / IPSEC_PFKEYv2_ALIGN; + + pfkey_msg->sadb_msg_type = msg_type; + pfkey_msg->sadb_msg_satype = satype; + + pfkey_msg->sadb_msg_version = PF_KEY_V2; + pfkey_msg->sadb_msg_errno = msg_errno; + pfkey_msg->sadb_msg_reserved = 0; + pfkey_msg->sadb_msg_seq = seq; + pfkey_msg->sadb_msg_pid = pid; + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_msg_hdr_build: " + "on_exit &pfkey_ext=0p%p pfkey_ext=0p%p *pfkey_ext=0p%p.\n", + &pfkey_ext, + pfkey_ext, + *pfkey_ext); +errlab: + return error; +} + +int +pfkey_sa_ref_build(struct sadb_ext ** pfkey_ext, + uint16_t exttype, + uint32_t spi, + uint8_t replay_window, + uint8_t sa_state, + uint8_t auth, + uint8_t encrypt, + uint32_t flags, + uint32_t/*IPsecSAref_t*/ ref) +{ + int error = 0; + struct sadb_sa *pfkey_sa = (struct sadb_sa *)*pfkey_ext; + + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_sa_build: " + "spi=%08x replay=%d sa_state=%d auth=%d encrypt=%d flags=%d\n", + ntohl(spi), /* in network order */ + replay_window, + sa_state, + auth, + encrypt, + flags); + /* sanity checks... */ + if(pfkey_sa) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_sa_build: " + "why is pfkey_sa already pointing to something?\n"); + SENDERR(EINVAL); + } + + if(exttype != SADB_EXT_SA && + exttype != SADB_X_EXT_SA2) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_sa_build: " + "invalid exttype=%d.\n", + exttype); + SENDERR(EINVAL); + } + + if(replay_window > 64) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_sa_build: " + "replay window size: %d -- must be 0 <= size <= 64\n", + replay_window); + SENDERR(EINVAL); + } + + if(auth > SADB_AALG_MAX) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_sa_build: " + "auth=%d > SADB_AALG_MAX=%d.\n", + auth, + SADB_AALG_MAX); + SENDERR(EINVAL); + } + +#if SADB_EALG_MAX < 255 + if(encrypt > SADB_EALG_MAX) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_sa_build: " + "encrypt=%d > SADB_EALG_MAX=%d.\n", + encrypt, + SADB_EALG_MAX); + SENDERR(EINVAL); + } +#endif + + if(sa_state > SADB_SASTATE_MAX) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_sa_build: " + "sa_state=%d exceeds MAX=%d.\n", + sa_state, + SADB_SASTATE_MAX); + SENDERR(EINVAL); + } + + if(sa_state == SADB_SASTATE_DEAD) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_sa_build: " + "sa_state=%d is DEAD=%d is not allowed.\n", + sa_state, + SADB_SASTATE_DEAD); + SENDERR(EINVAL); + } + + if((IPSEC_SAREF_NULL != ref) && (ref >= (1 << IPSEC_SA_REF_TABLE_IDX_WIDTH))) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_sa_build: " + "SAref=%d must be (SAref == IPSEC_SAREF_NULL(%d) || SAref < IPSEC_SA_REF_TABLE_NUM_ENTRIES(%d)).\n", + ref, + IPSEC_SAREF_NULL, + IPSEC_SA_REF_TABLE_NUM_ENTRIES); + SENDERR(EINVAL); + } + + pfkey_sa = (struct sadb_sa*)MALLOC(sizeof(struct sadb_sa)); + *pfkey_ext = (struct sadb_ext*)pfkey_sa; + + if(pfkey_sa == NULL) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_sa_build: " + "memory allocation failed\n"); + SENDERR(ENOMEM); + } + memset(pfkey_sa, 0, sizeof(struct sadb_sa)); + + pfkey_sa->sadb_sa_len = sizeof(*pfkey_sa) / IPSEC_PFKEYv2_ALIGN; + pfkey_sa->sadb_sa_exttype = exttype; + pfkey_sa->sadb_sa_spi = spi; + pfkey_sa->sadb_sa_replay = replay_window; + pfkey_sa->sadb_sa_state = sa_state; + pfkey_sa->sadb_sa_auth = auth; + pfkey_sa->sadb_sa_encrypt = encrypt; + pfkey_sa->sadb_sa_flags = flags; + pfkey_sa->sadb_x_sa_ref = ref; + +errlab: + return error; +} + +int +pfkey_sa_build(struct sadb_ext ** pfkey_ext, + uint16_t exttype, + uint32_t spi, + uint8_t replay_window, + uint8_t sa_state, + uint8_t auth, + uint8_t encrypt, + uint32_t flags) +{ + return pfkey_sa_ref_build(pfkey_ext, + exttype, + spi, + replay_window, + sa_state, + auth, + encrypt, + flags, + IPSEC_SAREF_NULL); +} + +int +pfkey_lifetime_build(struct sadb_ext ** pfkey_ext, + uint16_t exttype, + uint32_t allocations, + uint64_t bytes, + uint64_t addtime, + uint64_t usetime, + uint32_t packets) +{ + int error = 0; + struct sadb_lifetime *pfkey_lifetime = (struct sadb_lifetime *)*pfkey_ext; + + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_lifetime_build:\n"); + /* sanity checks... */ + if(pfkey_lifetime) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_lifetime_build: " + "why is pfkey_lifetime already pointing to something?\n"); + SENDERR(EINVAL); + } + + if(exttype != SADB_EXT_LIFETIME_CURRENT && + exttype != SADB_EXT_LIFETIME_HARD && + exttype != SADB_EXT_LIFETIME_SOFT) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_lifetime_build: " + "invalid exttype=%d.\n", + exttype); + SENDERR(EINVAL); + } + + pfkey_lifetime = (struct sadb_lifetime*)MALLOC(sizeof(struct sadb_lifetime)); + *pfkey_ext = (struct sadb_ext*) pfkey_lifetime; + + if(pfkey_lifetime == NULL) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_lifetime_build: " + "memory allocation failed\n"); + SENDERR(ENOMEM); + } + memset(pfkey_lifetime, 0, sizeof(struct sadb_lifetime)); + + pfkey_lifetime->sadb_lifetime_len = sizeof(struct sadb_lifetime) / IPSEC_PFKEYv2_ALIGN; + pfkey_lifetime->sadb_lifetime_exttype = exttype; + pfkey_lifetime->sadb_lifetime_allocations = allocations; + pfkey_lifetime->sadb_lifetime_bytes = bytes; + pfkey_lifetime->sadb_lifetime_addtime = addtime; + pfkey_lifetime->sadb_lifetime_usetime = usetime; + pfkey_lifetime->sadb_x_lifetime_packets = packets; + +errlab: + return error; +} + +int +pfkey_address_build(struct sadb_ext** pfkey_ext, + uint16_t exttype, + uint8_t proto, + uint8_t prefixlen, + struct sockaddr* address) +{ + int error = 0; + int saddr_len = 0; + char ipaddr_txt[ADDRTOT_BUF + 6/*extra for port number*/]; + struct sadb_address *pfkey_address = (struct sadb_address *)*pfkey_ext; + + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_address_build: " + "exttype=%d proto=%d prefixlen=%d\n", + exttype, + proto, + prefixlen); + /* sanity checks... */ + if(pfkey_address) { + ERROR("pfkey_address_build: " + "why is pfkey_address already pointing to something?\n"); + SENDERR(EINVAL); + } + + if (!address) { + ERROR("pfkey_address_build: " "address is NULL\n"); + SENDERR(EINVAL); + } + + switch(exttype) { + case SADB_EXT_ADDRESS_SRC: + case SADB_EXT_ADDRESS_DST: + case SADB_EXT_ADDRESS_PROXY: + case SADB_X_EXT_ADDRESS_DST2: + case SADB_X_EXT_ADDRESS_SRC_FLOW: + case SADB_X_EXT_ADDRESS_DST_FLOW: + case SADB_X_EXT_ADDRESS_SRC_MASK: + case SADB_X_EXT_ADDRESS_DST_MASK: +#ifdef NAT_TRAVERSAL + case SADB_X_EXT_NAT_T_OA: +#endif + break; + default: + ERROR("pfkey_address_build: " + "unrecognised ext_type=%d.\n", + exttype); + SENDERR(EINVAL); + } + + switch(address->sa_family) { + case AF_INET: + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_address_build: " + "found address family AF_INET.\n"); + saddr_len = sizeof(struct sockaddr_in); + sprintf(ipaddr_txt, "%d.%d.%d.%d:%d" + , (((struct sockaddr_in*)address)->sin_addr.s_addr >> 0) & 0xFF + , (((struct sockaddr_in*)address)->sin_addr.s_addr >> 8) & 0xFF + , (((struct sockaddr_in*)address)->sin_addr.s_addr >> 16) & 0xFF + , (((struct sockaddr_in*)address)->sin_addr.s_addr >> 24) & 0xFF + , ntohs(((struct sockaddr_in*)address)->sin_port)); + break; + case AF_INET6: + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_address_build: " + "found address family AF_INET6.\n"); + saddr_len = sizeof(struct sockaddr_in6); + sprintf(ipaddr_txt, "%x:%x:%x:%x:%x:%x:%x:%x-%x" + , ntohs(((struct sockaddr_in6*)address)->sin6_addr.s6_addr16[0]) + , ntohs(((struct sockaddr_in6*)address)->sin6_addr.s6_addr16[1]) + , ntohs(((struct sockaddr_in6*)address)->sin6_addr.s6_addr16[2]) + , ntohs(((struct sockaddr_in6*)address)->sin6_addr.s6_addr16[3]) + , ntohs(((struct sockaddr_in6*)address)->sin6_addr.s6_addr16[4]) + , ntohs(((struct sockaddr_in6*)address)->sin6_addr.s6_addr16[5]) + , ntohs(((struct sockaddr_in6*)address)->sin6_addr.s6_addr16[6]) + , ntohs(((struct sockaddr_in6*)address)->sin6_addr.s6_addr16[7]) + , ntohs(((struct sockaddr_in6*)address)->sin6_port)); + break; + default: + ERROR("pfkey_address_build: " + "address->sa_family=%d not supported.\n", + address->sa_family); + SENDERR(EPFNOSUPPORT); + } + + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_address_build: " + "found address=%s.\n", + ipaddr_txt); + if(prefixlen != 0) { + ERROR("pfkey_address_build: " + "address prefixes not supported yet.\n"); + SENDERR(EAFNOSUPPORT); /* not supported yet */ + } + + /* allocate some memory for the extension */ + pfkey_address = (struct sadb_address*) + MALLOC(ALIGN_N(sizeof(struct sadb_address) + saddr_len, IPSEC_PFKEYv2_ALIGN)); + *pfkey_ext = (struct sadb_ext*)pfkey_address; + + if(pfkey_address == NULL ) { + ERROR("pfkey_lifetime_build: " + "memory allocation failed\n"); + SENDERR(ENOMEM); + } + memset(pfkey_address, + 0, + ALIGN_N(sizeof(struct sadb_address) + saddr_len, + IPSEC_PFKEYv2_ALIGN)); + + pfkey_address->sadb_address_len = DIVUP(sizeof(struct sadb_address) + saddr_len, + IPSEC_PFKEYv2_ALIGN); + + pfkey_address->sadb_address_exttype = exttype; + pfkey_address->sadb_address_proto = proto; + pfkey_address->sadb_address_prefixlen = prefixlen; + pfkey_address->sadb_address_reserved = 0; + + memcpy((char*)pfkey_address + sizeof(struct sadb_address), + address, + saddr_len); + +#if 0 + for(i = 0; i < sizeof(struct sockaddr_in) - offsetof(struct sockaddr_in, sin_zero); i++) { + pfkey_address_s_ska.sin_zero[i] = 0; + } +#endif + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_address_build: " + "successful created len: %d.\n", pfkey_address->sadb_address_len); + + errlab: + return error; +} + +int +pfkey_key_build(struct sadb_ext** pfkey_ext, + uint16_t exttype, + uint16_t key_bits, + char* key) +{ + int error = 0; + struct sadb_key *pfkey_key = (struct sadb_key *)*pfkey_ext; + + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_key_build:\n"); + /* sanity checks... */ + if(pfkey_key) { + ERROR("pfkey_key_build: " + "why is pfkey_key already pointing to something?\n"); + SENDERR(EINVAL); + } + + if(!key_bits) { + ERROR("pfkey_key_build: " + "key_bits is zero, it must be non-zero.\n"); + SENDERR(EINVAL); + } + + if( !((exttype == SADB_EXT_KEY_AUTH) || (exttype == SADB_EXT_KEY_ENCRYPT))) { + ERROR("pfkey_key_build: " + "unsupported extension type=%d.\n", + exttype); + SENDERR(EINVAL); + } + + pfkey_key = (struct sadb_key*) + MALLOC(sizeof(struct sadb_key) + + DIVUP(key_bits, 64) * IPSEC_PFKEYv2_ALIGN); + + *pfkey_ext = (struct sadb_ext*)pfkey_key; + + if(pfkey_key == NULL) { + ERROR("pfkey_key_build: " + "memory allocation failed\n"); + SENDERR(ENOMEM); + } + memset(pfkey_key, + 0, + sizeof(struct sadb_key) + + DIVUP(key_bits, 64) * IPSEC_PFKEYv2_ALIGN); + + pfkey_key->sadb_key_len = DIVUP(sizeof(struct sadb_key) * IPSEC_PFKEYv2_ALIGN + key_bits, + 64); + pfkey_key->sadb_key_exttype = exttype; + pfkey_key->sadb_key_bits = key_bits; + pfkey_key->sadb_key_reserved = 0; + memcpy((char*)pfkey_key + sizeof(struct sadb_key), + key, + DIVUP(key_bits, 8)); + +errlab: + return error; +} + +int +pfkey_ident_build(struct sadb_ext** pfkey_ext, + uint16_t exttype, + uint16_t ident_type, + uint64_t ident_id, + uint8_t ident_len, + char* ident_string) +{ + int error = 0; + struct sadb_ident *pfkey_ident = (struct sadb_ident *)*pfkey_ext; + int data_len = ident_len * IPSEC_PFKEYv2_ALIGN - sizeof(struct sadb_ident); + + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_ident_build:\n"); + /* sanity checks... */ + if(pfkey_ident) { + ERROR("pfkey_ident_build: " + "why is pfkey_ident already pointing to something?\n"); + SENDERR(EINVAL); + } + + if( ! ((exttype == SADB_EXT_IDENTITY_SRC) || + (exttype == SADB_EXT_IDENTITY_DST))) { + ERROR("pfkey_ident_build: " + "unsupported extension type=%d.\n", + exttype); + SENDERR(EINVAL); + } + + if((ident_type == SADB_IDENTTYPE_RESERVED)) { + ERROR("pfkey_ident_build: " + "ident_type must be non-zero.\n"); + SENDERR(EINVAL); + } + + if(ident_type > SADB_IDENTTYPE_MAX) { + ERROR("pfkey_ident_build: " + "identtype=%d out of range.\n", + ident_type); + SENDERR(EINVAL); + } + + if(((ident_type == SADB_IDENTTYPE_PREFIX) || + (ident_type == SADB_IDENTTYPE_FQDN)) && + !ident_string) { + ERROR("pfkey_ident_build: " + "string required to allocate size of extension.\n"); + SENDERR(EINVAL); + } + +#if 0 + if((ident_type == SADB_IDENTTYPE_USERFQDN) ) { + } +#endif + + pfkey_ident = (struct sadb_ident*) + MALLOC(ident_len * IPSEC_PFKEYv2_ALIGN); + + *pfkey_ext = (struct sadb_ext*)pfkey_ident; + + if(pfkey_ident == NULL) { + ERROR("pfkey_ident_build: " + "memory allocation failed\n"); + SENDERR(ENOMEM); + } + memset(pfkey_ident, 0, ident_len * IPSEC_PFKEYv2_ALIGN); + + pfkey_ident->sadb_ident_len = ident_len; + pfkey_ident->sadb_ident_exttype = exttype; + pfkey_ident->sadb_ident_type = ident_type; + pfkey_ident->sadb_ident_reserved = 0; + pfkey_ident->sadb_ident_id = ident_id; + memcpy((char*)pfkey_ident + sizeof(struct sadb_ident), + ident_string, + data_len); + +errlab: + return error; +} + +int +pfkey_sens_build(struct sadb_ext** pfkey_ext, + uint32_t dpd, + uint8_t sens_level, + uint8_t sens_len, + uint64_t* sens_bitmap, + uint8_t integ_level, + uint8_t integ_len, + uint64_t* integ_bitmap) +{ + int error = 0; + struct sadb_sens *pfkey_sens = (struct sadb_sens *)*pfkey_ext; + int i; + uint64_t* bitmap; + + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_sens_build:\n"); + /* sanity checks... */ + if(pfkey_sens) { + ERROR("pfkey_sens_build: " + "why is pfkey_sens already pointing to something?\n"); + SENDERR(EINVAL); + } + + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_sens_build: " + "Sorry, I can't build exttype=%d yet.\n", + (*pfkey_ext)->sadb_ext_type); + SENDERR(EINVAL); /* don't process these yet */ + + pfkey_sens = (struct sadb_sens*) + MALLOC(sizeof(struct sadb_sens) + + (sens_len + integ_len) * sizeof(uint64_t)); + + *pfkey_ext = (struct sadb_ext*)pfkey_sens; + + if(pfkey_sens == NULL) { + ERROR("pfkey_sens_build: " + "memory allocation failed\n"); + SENDERR(ENOMEM); + } + memset(pfkey_sens, + 0, + sizeof(struct sadb_sens) + + (sens_len + integ_len) * sizeof(uint64_t)); + + pfkey_sens->sadb_sens_len = (sizeof(struct sadb_sens) + + (sens_len + integ_len) * sizeof(uint64_t)) / IPSEC_PFKEYv2_ALIGN; + pfkey_sens->sadb_sens_exttype = SADB_EXT_SENSITIVITY; + pfkey_sens->sadb_sens_dpd = dpd; + pfkey_sens->sadb_sens_sens_level = sens_level; + pfkey_sens->sadb_sens_sens_len = sens_len; + pfkey_sens->sadb_sens_integ_level = integ_level; + pfkey_sens->sadb_sens_integ_len = integ_len; + pfkey_sens->sadb_sens_reserved = 0; + + bitmap = (uint64_t*)((char*)pfkey_ext + sizeof(struct sadb_sens)); + for(i = 0; i < sens_len; i++) { + *bitmap = sens_bitmap[i]; + bitmap++; + } + for(i = 0; i < integ_len; i++) { + *bitmap = integ_bitmap[i]; + bitmap++; + } + +errlab: + return error; +} + +int +pfkey_prop_build(struct sadb_ext** pfkey_ext, + uint8_t replay, + unsigned int comb_num, + struct sadb_comb* comb) +{ + int error = 0; + int i; + struct sadb_prop *pfkey_prop = (struct sadb_prop *)*pfkey_ext; + struct sadb_comb *combp; + + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_prop_build:\n"); + /* sanity checks... */ + if(pfkey_prop) { + ERROR("pfkey_prop_build: " + "why is pfkey_prop already pointing to something?\n"); + SENDERR(EINVAL); + } + + pfkey_prop = (struct sadb_prop*) + MALLOC(sizeof(struct sadb_prop) + + comb_num * sizeof(struct sadb_comb)); + + *pfkey_ext = (struct sadb_ext*)pfkey_prop; + + if(pfkey_prop == NULL) { + ERROR("pfkey_prop_build: " + "memory allocation failed\n"); + SENDERR(ENOMEM); + } + memset(pfkey_prop, + 0, + sizeof(struct sadb_prop) + + comb_num * sizeof(struct sadb_comb)); + + pfkey_prop->sadb_prop_len = (sizeof(struct sadb_prop) + + comb_num * sizeof(struct sadb_comb)) / IPSEC_PFKEYv2_ALIGN; + + pfkey_prop->sadb_prop_exttype = SADB_EXT_PROPOSAL; + pfkey_prop->sadb_prop_replay = replay; + + for(i=0; i<3; i++) { + pfkey_prop->sadb_prop_reserved[i] = 0; + } + + combp = (struct sadb_comb*)((char*)*pfkey_ext + sizeof(struct sadb_prop)); + for(i = 0; i < comb_num; i++) { + memcpy (combp, &(comb[i]), sizeof(struct sadb_comb)); + combp++; + } + +#if 0 + uint8_t sadb_comb_auth; + uint8_t sadb_comb_encrypt; + uint16_t sadb_comb_flags; + uint16_t sadb_comb_auth_minbits; + uint16_t sadb_comb_auth_maxbits; + uint16_t sadb_comb_encrypt_minbits; + uint16_t sadb_comb_encrypt_maxbits; + uint32_t sadb_comb_reserved; + uint32_t sadb_comb_soft_allocations; + uint32_t sadb_comb_hard_allocations; + uint64_t sadb_comb_soft_bytes; + uint64_t sadb_comb_hard_bytes; + uint64_t sadb_comb_soft_addtime; + uint64_t sadb_comb_hard_addtime; + uint64_t sadb_comb_soft_usetime; + uint64_t sadb_comb_hard_usetime; + uint32_t sadb_comb_soft_packets; + uint32_t sadb_comb_hard_packets; +#endif +errlab: + return error; +} + +int +pfkey_supported_build(struct sadb_ext** pfkey_ext, + uint16_t exttype, + unsigned int alg_num, + struct sadb_alg* alg) +{ + int error = 0; + unsigned int i; + struct sadb_supported *pfkey_supported = (struct sadb_supported *)*pfkey_ext; + struct sadb_alg *pfkey_alg; + + /* sanity checks... */ + if(pfkey_supported) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_supported_build: " + "why is pfkey_supported already pointing to something?\n"); + SENDERR(EINVAL); + } + + if( !((exttype == SADB_EXT_SUPPORTED_AUTH) || (exttype == SADB_EXT_SUPPORTED_ENCRYPT))) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_supported_build: " + "unsupported extension type=%d.\n", + exttype); + SENDERR(EINVAL); + } + + pfkey_supported = (struct sadb_supported*) + MALLOC(sizeof(struct sadb_supported) + + alg_num * + sizeof(struct sadb_alg)); + + *pfkey_ext = (struct sadb_ext*)pfkey_supported; + + if(pfkey_supported == NULL) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_supported_build: " + "memory allocation failed\n"); + SENDERR(ENOMEM); + } + memset(pfkey_supported, + 0, + sizeof(struct sadb_supported) + + alg_num * + sizeof(struct sadb_alg)); + + pfkey_supported->sadb_supported_len = (sizeof(struct sadb_supported) + + alg_num * + sizeof(struct sadb_alg)) / + IPSEC_PFKEYv2_ALIGN; + pfkey_supported->sadb_supported_exttype = exttype; + pfkey_supported->sadb_supported_reserved = 0; + + pfkey_alg = (struct sadb_alg*)((char*)pfkey_supported + sizeof(struct sadb_supported)); + for(i = 0; i < alg_num; i++) { + memcpy (pfkey_alg, &(alg[i]), sizeof(struct sadb_alg)); + pfkey_alg->sadb_alg_reserved = 0; + pfkey_alg++; + } + +#if 0 + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_supported_build: " + "Sorry, I can't build exttype=%d yet.\n", + (*pfkey_ext)->sadb_ext_type); + SENDERR(EINVAL); /* don't process these yet */ + + uint8_t sadb_alg_id; + uint8_t sadb_alg_ivlen; + uint16_t sadb_alg_minbits; + uint16_t sadb_alg_maxbits; + uint16_t sadb_alg_reserved; +#endif +errlab: + return error; +} + +int +pfkey_spirange_build(struct sadb_ext** pfkey_ext, + uint16_t exttype, + uint32_t min, /* in network order */ + uint32_t max) /* in network order */ +{ + int error = 0; + struct sadb_spirange *pfkey_spirange = (struct sadb_spirange *)*pfkey_ext; + + /* sanity checks... */ + if(pfkey_spirange) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_spirange_build: " + "why is pfkey_spirange already pointing to something?\n"); + SENDERR(EINVAL); + } + + if(ntohl(max) < ntohl(min)) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_spirange_build: " + "minspi=%08x must be < maxspi=%08x.\n", + ntohl(min), + ntohl(max)); + SENDERR(EINVAL); + } + + if(ntohl(min) <= 255) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_spirange_build: " + "minspi=%08x must be > 255.\n", + ntohl(min)); + SENDERR(EEXIST); + } + + pfkey_spirange = (struct sadb_spirange*) + MALLOC(sizeof(struct sadb_spirange)); + + *pfkey_ext = (struct sadb_ext*)pfkey_spirange; + + if(pfkey_spirange == NULL) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_spirange_build: " + "memory allocation failed\n"); + SENDERR(ENOMEM); + } + memset(pfkey_spirange, + 0, + sizeof(struct sadb_spirange)); + + pfkey_spirange->sadb_spirange_len = sizeof(struct sadb_spirange) / IPSEC_PFKEYv2_ALIGN; + + pfkey_spirange->sadb_spirange_exttype = SADB_EXT_SPIRANGE; + pfkey_spirange->sadb_spirange_min = min; + pfkey_spirange->sadb_spirange_max = max; + pfkey_spirange->sadb_spirange_reserved = 0; + errlab: + return error; +} + +int +pfkey_x_kmprivate_build(struct sadb_ext** pfkey_ext) +{ + int error = 0; + struct sadb_x_kmprivate *pfkey_x_kmprivate = (struct sadb_x_kmprivate *)*pfkey_ext; + + /* sanity checks... */ + if(pfkey_x_kmprivate) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_x_kmprivate_build: " + "why is pfkey_x_kmprivate already pointing to something?\n"); + SENDERR(EINVAL); + } + + pfkey_x_kmprivate->sadb_x_kmprivate_reserved = 0; + + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_x_kmprivate_build: " + "Sorry, I can't build exttype=%d yet.\n", + (*pfkey_ext)->sadb_ext_type); + SENDERR(EINVAL); /* don't process these yet */ + + pfkey_x_kmprivate = (struct sadb_x_kmprivate*) + MALLOC(sizeof(struct sadb_x_kmprivate)); + + *pfkey_ext = (struct sadb_ext*)pfkey_x_kmprivate; + + if(pfkey_x_kmprivate == NULL) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_x_kmprivate_build: " + "memory allocation failed\n"); + SENDERR(ENOMEM); + } + memset(pfkey_x_kmprivate, + 0, + sizeof(struct sadb_x_kmprivate)); + + pfkey_x_kmprivate->sadb_x_kmprivate_len = + sizeof(struct sadb_x_kmprivate) / IPSEC_PFKEYv2_ALIGN; + + pfkey_x_kmprivate->sadb_x_kmprivate_exttype = SADB_X_EXT_KMPRIVATE; + pfkey_x_kmprivate->sadb_x_kmprivate_reserved = 0; +errlab: + return error; +} + +int +pfkey_x_satype_build(struct sadb_ext** pfkey_ext, + uint8_t satype) +{ + int error = 0; + int i; + struct sadb_x_satype *pfkey_x_satype = (struct sadb_x_satype *)*pfkey_ext; + + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_x_satype_build:\n"); + /* sanity checks... */ + if(pfkey_x_satype) { + ERROR("pfkey_x_satype_build: " + "why is pfkey_x_satype already pointing to something?\n"); + SENDERR(EINVAL); + } + + if(!satype) { + ERROR("pfkey_x_satype_build: " + "SA type not set, must be non-zero.\n"); + SENDERR(EINVAL); + } + + if(satype > SADB_SATYPE_MAX) { + ERROR("pfkey_x_satype_build: " + "satype %d > max %d\n", + satype, SADB_SATYPE_MAX); + SENDERR(EINVAL); + } + + pfkey_x_satype = (struct sadb_x_satype*) + MALLOC(sizeof(struct sadb_x_satype)); + + *pfkey_ext = (struct sadb_ext*)pfkey_x_satype; + if(pfkey_x_satype == NULL) { + ERROR("pfkey_x_satype_build: " + "memory allocation failed\n"); + SENDERR(ENOMEM); + } + memset(pfkey_x_satype, + 0, + sizeof(struct sadb_x_satype)); + + pfkey_x_satype->sadb_x_satype_len = sizeof(struct sadb_x_satype) / IPSEC_PFKEYv2_ALIGN; + + pfkey_x_satype->sadb_x_satype_exttype = SADB_X_EXT_SATYPE2; + pfkey_x_satype->sadb_x_satype_satype = satype; + for(i=0; i<3; i++) { + pfkey_x_satype->sadb_x_satype_reserved[i] = 0; + } + +errlab: + return error; +} + +int +pfkey_x_debug_build(struct sadb_ext** pfkey_ext, + uint32_t tunnel, + uint32_t netlink, + uint32_t xform, + uint32_t eroute, + uint32_t spi, + uint32_t radij, + uint32_t esp, + uint32_t ah, + uint32_t rcv, + uint32_t pfkey, + uint32_t ipcomp, + uint32_t verbose) +{ + int error = 0; + int i; + struct sadb_x_debug *pfkey_x_debug = (struct sadb_x_debug *)*pfkey_ext; + + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_x_debug_build:\n"); + /* sanity checks... */ + if(pfkey_x_debug) { + ERROR("pfkey_x_debug_build: " + "why is pfkey_x_debug already pointing to something?\n"); + SENDERR(EINVAL); + } + + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_x_debug_build: " + "tunnel=%x netlink=%x xform=%x eroute=%x spi=%x radij=%x esp=%x ah=%x rcv=%x pfkey=%x ipcomp=%x verbose=%x?\n", + tunnel, netlink, xform, eroute, spi, radij, esp, ah, rcv, pfkey, ipcomp, verbose); + + pfkey_x_debug = (struct sadb_x_debug*) + MALLOC(sizeof(struct sadb_x_debug)); + + *pfkey_ext = (struct sadb_ext*)pfkey_x_debug; + + if(pfkey_x_debug == NULL) { + ERROR("pfkey_x_debug_build: " + "memory allocation failed\n"); + SENDERR(ENOMEM); + } +#if 0 + memset(pfkey_x_debug, + 0, + sizeof(struct sadb_x_debug)); +#endif + + pfkey_x_debug->sadb_x_debug_len = sizeof(struct sadb_x_debug) / IPSEC_PFKEYv2_ALIGN; + pfkey_x_debug->sadb_x_debug_exttype = SADB_X_EXT_DEBUG; + + pfkey_x_debug->sadb_x_debug_tunnel = tunnel; + pfkey_x_debug->sadb_x_debug_netlink = netlink; + pfkey_x_debug->sadb_x_debug_xform = xform; + pfkey_x_debug->sadb_x_debug_eroute = eroute; + pfkey_x_debug->sadb_x_debug_spi = spi; + pfkey_x_debug->sadb_x_debug_radij = radij; + pfkey_x_debug->sadb_x_debug_esp = esp; + pfkey_x_debug->sadb_x_debug_ah = ah; + pfkey_x_debug->sadb_x_debug_rcv = rcv; + pfkey_x_debug->sadb_x_debug_pfkey = pfkey; + pfkey_x_debug->sadb_x_debug_ipcomp = ipcomp; + pfkey_x_debug->sadb_x_debug_verbose = verbose; + + for(i=0; i<4; i++) { + pfkey_x_debug->sadb_x_debug_reserved[i] = 0; + } + +errlab: + return error; +} + +int +pfkey_x_nat_t_type_build(struct sadb_ext** pfkey_ext, + uint8_t type) +{ + int error = 0; + int i; + struct sadb_x_nat_t_type *pfkey_x_nat_t_type = (struct sadb_x_nat_t_type *)*pfkey_ext; + + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_x_nat_t_type_build:\n"); + /* sanity checks... */ + if(pfkey_x_nat_t_type) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_x_nat_t_type_build: " + "why is pfkey_x_nat_t_type already pointing to something?\n"); + SENDERR(EINVAL); + } + + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_x_nat_t_type_build: " + "type=%d\n", type); + + pfkey_x_nat_t_type = (struct sadb_x_nat_t_type*) + MALLOC(sizeof(struct sadb_x_nat_t_type)); + + *pfkey_ext = (struct sadb_ext*)pfkey_x_nat_t_type; + + if(pfkey_x_nat_t_type == NULL) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_x_nat_t_type_build: " + "memory allocation failed\n"); + SENDERR(ENOMEM); + } + + pfkey_x_nat_t_type->sadb_x_nat_t_type_len = sizeof(struct sadb_x_nat_t_type) / IPSEC_PFKEYv2_ALIGN; + pfkey_x_nat_t_type->sadb_x_nat_t_type_exttype = SADB_X_EXT_NAT_T_TYPE; + pfkey_x_nat_t_type->sadb_x_nat_t_type_type = type; + for(i=0; i<3; i++) { + pfkey_x_nat_t_type->sadb_x_nat_t_type_reserved[i] = 0; + } + +errlab: + return error; +} +int +pfkey_x_nat_t_port_build(struct sadb_ext** pfkey_ext, + uint16_t exttype, + uint16_t port) +{ + int error = 0; + struct sadb_x_nat_t_port *pfkey_x_nat_t_port = (struct sadb_x_nat_t_port *)*pfkey_ext; + + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_x_nat_t_port_build:\n"); + /* sanity checks... */ + if(pfkey_x_nat_t_port) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_x_nat_t_port_build: " + "why is pfkey_x_nat_t_port already pointing to something?\n"); + SENDERR(EINVAL); + } + + switch(exttype) { + case SADB_X_EXT_NAT_T_SPORT: + case SADB_X_EXT_NAT_T_DPORT: + break; + default: + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_nat_t_port_build: " + "unrecognised ext_type=%d.\n", + exttype); + SENDERR(EINVAL); + } + + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_x_nat_t_port_build: " + "ext=%d, port=%d\n", exttype, port); + + pfkey_x_nat_t_port = (struct sadb_x_nat_t_port*) + MALLOC(sizeof(struct sadb_x_nat_t_port)); + + *pfkey_ext = (struct sadb_ext*)pfkey_x_nat_t_port; + + if(pfkey_x_nat_t_port == NULL) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_x_nat_t_port_build: " + "memory allocation failed\n"); + SENDERR(ENOMEM); + } + + pfkey_x_nat_t_port->sadb_x_nat_t_port_len = sizeof(struct sadb_x_nat_t_port) / IPSEC_PFKEYv2_ALIGN; + pfkey_x_nat_t_port->sadb_x_nat_t_port_exttype = exttype; + pfkey_x_nat_t_port->sadb_x_nat_t_port_port = port; + pfkey_x_nat_t_port->sadb_x_nat_t_port_reserved = 0; + +errlab: + return error; +} + +int pfkey_x_protocol_build(struct sadb_ext **pfkey_ext, + uint8_t protocol) +{ + int error = 0; + struct sadb_protocol * p = (struct sadb_protocol *)*pfkey_ext; + DEBUGGING(PF_KEY_DEBUG_BUILD,"pfkey_x_protocol_build: protocol=%u\n", protocol); + /* sanity checks... */ + if (p != 0) { + ERROR("pfkey_x_protocol_build: bogus protocol pointer\n"); + SENDERR(EINVAL); + } + if ((p = (struct sadb_protocol*)MALLOC(sizeof(*p))) == 0) { + ERROR("pfkey_build: memory allocation failed\n"); + SENDERR(ENOMEM); + } + *pfkey_ext = (struct sadb_ext *)p; + p->sadb_protocol_len = sizeof(*p) / sizeof(uint64_t); + p->sadb_protocol_exttype = SADB_X_EXT_PROTOCOL; + p->sadb_protocol_proto = protocol; + p->sadb_protocol_flags = 0; + p->sadb_protocol_reserved2 = 0; + errlab: + return error; +} + +int +pfkey_msg_build(struct sadb_msg **pfkey_msg, struct sadb_ext *extensions[], int dir) +{ + int error = 0; + unsigned ext; + unsigned total_size; + struct sadb_ext *pfkey_ext; + int extensions_seen = 0; +#ifndef __KERNEL__ + struct sadb_ext *extensions_check[SADB_EXT_MAX + 1]; +#endif + + if(!extensions[0]) { + ERROR("pfkey_msg_build: " + "extensions[0] must be specified (struct sadb_msg).\n"); + SENDERR(EINVAL); + } + + /* figure out the total size for all the requested extensions */ + total_size = IPSEC_PFKEYv2_WORDS(sizeof(struct sadb_msg)); + for(ext = 1; ext <= SADB_EXT_MAX; ext++) { + if(extensions[ext]) { + total_size += (extensions[ext])->sadb_ext_len; + } + } + + /* allocate that much space */ + *pfkey_msg = (struct sadb_msg*)MALLOC(total_size * IPSEC_PFKEYv2_ALIGN); + if(*pfkey_msg == NULL) { + ERROR("pfkey_msg_build: " + "memory allocation failed\n"); + SENDERR(ENOMEM); + } + + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_msg_build: " + "pfkey_msg=0p%p allocated %lu bytes, &(extensions[0])=0p%p\n", + *pfkey_msg, + (unsigned long)(total_size * IPSEC_PFKEYv2_ALIGN), + &(extensions[0])); + + memcpy(*pfkey_msg, + extensions[0], + sizeof(struct sadb_msg)); + (*pfkey_msg)->sadb_msg_len = total_size; + (*pfkey_msg)->sadb_msg_reserved = 0; + extensions_seen = 1 ; + + /* + * point pfkey_ext to immediately after the space for the header, + * i.e. at the first extension location. + */ + pfkey_ext = (struct sadb_ext*)(((char*)(*pfkey_msg)) + sizeof(struct sadb_msg)); + + for(ext = 1; ext <= SADB_EXT_MAX; ext++) { + /* copy from extension[ext] to buffer */ + if(extensions[ext]) { + /* Is this type of extension permitted for this type of message? */ + if(!(extensions_bitmaps[dir][EXT_BITS_PERM][(*pfkey_msg)->sadb_msg_type] & + 1<sadb_msg_type], + 1<sadb_ext_len * IPSEC_PFKEYv2_ALIGN), + ext, + extensions[ext]->sadb_ext_type); + + memcpy(pfkey_ext, + extensions[ext], + (extensions[ext])->sadb_ext_len * IPSEC_PFKEYv2_ALIGN); + { + char *pfkey_ext_c = (char *)pfkey_ext; + + pfkey_ext_c += (extensions[ext])->sadb_ext_len * IPSEC_PFKEYv2_ALIGN; + pfkey_ext = (struct sadb_ext *)pfkey_ext_c; + } + + /* Mark that we have seen this extension and remember the header location */ + extensions_seen |= ( 1 << ext ); + } + } + + /* check required extensions */ + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_msg_build: " + "extensions permitted=%08x, seen=%08x, required=%08x.\n", + extensions_bitmaps[dir][EXT_BITS_PERM][(*pfkey_msg)->sadb_msg_type], + extensions_seen, + extensions_bitmaps[dir][EXT_BITS_REQ][(*pfkey_msg)->sadb_msg_type]); + + if((extensions_seen & + extensions_bitmaps[dir][EXT_BITS_REQ][(*pfkey_msg)->sadb_msg_type]) != + extensions_bitmaps[dir][EXT_BITS_REQ][(*pfkey_msg)->sadb_msg_type]) { + DEBUGGING(PF_KEY_DEBUG_BUILD, + "pfkey_msg_build: " + "required extensions missing:%08x.\n", + extensions_bitmaps[dir][EXT_BITS_REQ][(*pfkey_msg)->sadb_msg_type] - + (extensions_seen & + extensions_bitmaps[dir][EXT_BITS_REQ][(*pfkey_msg)->sadb_msg_type]) ); + SENDERR(EINVAL); + } + +#ifndef __KERNEL__ +/* + * this is silly, there is no need to reparse the message that we just built. + * + */ + if((error = pfkey_msg_parse(*pfkey_msg, NULL, extensions_check, dir))) { + ERROR( + "pfkey_msg_build: " + "Trouble parsing newly built pfkey message, error=%d.\n", + error); + SENDERR(-error); + } +#endif + +errlab: + + return error; +} + +/* + * $Log: pfkey_v2_build.c,v $ + * Revision 1.51.8.1 2006/05/01 14:36:39 mcr + * get rid of dead code. + * + * Revision 1.51 2004/10/03 01:26:36 mcr + * fixes for gcc 3.4 compilation. + * + * Revision 1.50 2004/07/10 07:48:35 mcr + * Moved from linux/lib/libfreeswan/pfkey_v2_build.c,v + * + * Revision 1.49 2004/04/12 02:59:06 mcr + * erroneously moved pfkey_v2_build.c + * + * Revision 1.48 2004/04/09 18:00:40 mcr + * Moved from linux/lib/libfreeswan/pfkey_v2_build.c,v + * + * Revision 1.47 2004/03/08 01:59:08 ken + * freeswan.h -> openswan.h + * + * Revision 1.46 2003/12/10 01:20:19 mcr + * NAT-traversal patches to KLIPS. + * + * Revision 1.45 2003/12/04 23:01:12 mcr + * removed ipsec_netlink.h + * + * Revision 1.44 2003/10/31 02:27:12 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.43.4.2 2003/10/29 01:11:32 mcr + * added debugging for pfkey library. + * + * Revision 1.43.4.1 2003/09/21 13:59:44 mcr + * pre-liminary X.509 patch - does not yet pass tests. + * + * Revision 1.43 2003/05/07 17:29:17 mcr + * new function pfkey_debug_func added for us in debugging from + * pfkey library. + * + * Revision 1.42 2003/01/30 02:32:09 rgb + * + * Rename SAref table macro names for clarity. + * Convert IPsecSAref_t from signed to unsigned to fix apparent SAref exhaustion bug. + * + * Revision 1.41 2002/12/13 18:16:02 mcr + * restored sa_ref code + * + * Revision 1.40 2002/12/13 18:06:52 mcr + * temporarily removed sadb_x_sa_ref reference for 2.xx + * + * Revision 1.39 2002/12/13 17:43:28 mcr + * commented out access to sadb_x_sa_ref for 2.xx branch + * + * Revision 1.38 2002/10/09 03:12:05 dhr + * + * [kenb+dhr] 64-bit fixes + * + * Revision 1.37 2002/09/20 15:40:39 rgb + * Added new function pfkey_sa_ref_build() to accomodate saref parameter. + * + * Revision 1.36 2002/09/20 05:01:22 rgb + * Generalise for platform independance: fix (ia64) using unsigned for sizes. + * + * Revision 1.35 2002/07/24 18:44:54 rgb + * Type fiddling to tame ia64 compiler. + * + * Revision 1.34 2002/05/23 07:14:11 rgb + * Cleaned up %p variants to 0p%p for test suite cleanup. + * + * Revision 1.33 2002/04/24 07:55:32 mcr + * #include patches and Makefiles for post-reorg compilation. + * + * Revision 1.32 2002/04/24 07:36:40 mcr + * Moved from ./lib/pfkey_v2_build.c,v + * + * Revision 1.31 2002/01/29 22:25:35 rgb + * Re-add ipsec_kversion.h to keep MALLOC happy. + * + * Revision 1.30 2002/01/29 01:59:09 mcr + * removal of kversions.h - sources that needed it now use ipsec_param.h. + * updating of IPv6 structures to match latest in6.h version. + * removed dead code from openswan.h that also duplicated kversions.h + * code. + * + * Revision 1.29 2001/12/19 21:06:09 rgb + * Added port numbers to pfkey_address_build() debugging. + * + * Revision 1.28 2001/11/06 19:47:47 rgb + * Added packet parameter to lifetime and comb structures. + * + * Revision 1.27 2001/10/18 04:45:24 rgb + * 2.4.9 kernel deprecates linux/malloc.h in favour of linux/slab.h, + * lib/openswan.h version macros moved to lib/kversions.h. + * Other compiler directive cleanups. + * + * Revision 1.26 2001/09/08 21:13:34 rgb + * Added pfkey ident extension support for ISAKMPd. (NetCelo) + * + * Revision 1.25 2001/06/14 19:35:16 rgb + * Update copyright date. + * + * Revision 1.24 2001/03/20 03:49:45 rgb + * Ditch superfluous debug_pfkey declaration. + * Move misplaced openswan.h inclusion for kernel case. + * + * Revision 1.23 2001/03/16 07:41:50 rgb + * Put openswan.h include before pluto includes. + * + * Revision 1.22 2001/02/27 22:24:56 rgb + * Re-formatting debug output (line-splitting, joining, 1arg/line). + * Check for satoa() return codes. + * + * Revision 1.21 2000/11/17 18:10:30 rgb + * Fixed bugs mostly relating to spirange, to treat all spi variables as + * network byte order since this is the way PF_KEYv2 stored spis. + * + * Revision 1.20 2000/10/12 00:02:39 rgb + * Removed 'format, ##' nonsense from debug macros for RH7.0. + * + * Revision 1.19 2000/10/10 20:10:20 rgb + * Added support for debug_ipcomp and debug_verbose to klipsdebug. + * + * Revision 1.18 2000/09/12 18:59:54 rgb + * Added Gerhard's IPv6 support to pfkey parts of libopenswan. + * + * Revision 1.17 2000/09/12 03:27:00 rgb + * Moved DEBUGGING definition to compile kernel with debug off. + * + * Revision 1.16 2000/09/08 19:22:12 rgb + * Fixed pfkey_prop_build() parameter to be only single indirection. + * Fixed struct alg copy. + * + * Revision 1.15 2000/08/20 21:40:01 rgb + * Added an address parameter sanity check to pfkey_address_build(). + * + * Revision 1.14 2000/08/15 17:29:23 rgb + * Fixes from SZI to untested pfkey_prop_build(). + * + * Revision 1.13 2000/06/02 22:54:14 rgb + * Added Gerhard Gessler's struct sockaddr_storage mods for IPv6 support. + * + * Revision 1.12 2000/05/10 19:24:01 rgb + * Fleshed out sensitivity, proposal and supported extensions. + * + * Revision 1.11 2000/03/16 14:07:23 rgb + * Renamed ALIGN macro to avoid fighting with others in kernel. + * + * Revision 1.10 2000/01/24 21:14:35 rgb + * Added disabled pluto pfkey lib debug flag. + * + * Revision 1.9 2000/01/21 06:27:32 rgb + * Added address cases for eroute flows. + * Removed unused code. + * Dropped unused argument to pfkey_x_satype_build(). + * Indented compiler directives for readability. + * Added klipsdebug switching capability. + * Fixed SADB_EXT_MAX bug not permitting last extension access. + * + * Revision 1.8 1999/12/29 21:17:41 rgb + * Changed pfkey_msg_build() I/F to include a struct sadb_msg** + * parameter for cleaner manipulation of extensions[] and to guard + * against potential memory leaks. + * Changed the I/F to pfkey_msg_free() for the same reason. + * + * Revision 1.7 1999/12/09 23:12:20 rgb + * Removed unused cruft. + * Added argument to pfkey_sa_build() to do eroutes. + * Fixed exttype check in as yet unused pfkey_lifetime_build(). + * + * Revision 1.6 1999/12/07 19:54:29 rgb + * Removed static pluto debug flag. + * Added functions for pfkey message and extensions initialisation + * and cleanup. + * + * Revision 1.5 1999/12/01 22:20:06 rgb + * Changed pfkey_sa_build to accept an SPI in network byte order. + * Added to quiet userspace compiler. + * Moved pfkey_lib_debug variable into the library. + * Removed SATYPE check from pfkey_msg_hdr_build so FLUSH will work. + * Added extension assembly debugging. + * Isolated assignment with brackets to be sure of scope. + * + * Revision 1.4 1999/11/27 11:57:35 rgb + * Added ipv6 headers. + * Remove over-zealous algorithm sanity checkers from pfkey_sa_build. + * Debugging error messages added. + * Fixed missing auth and encrypt assignment bug. + * Add argument to pfkey_msg_parse() for direction. + * Move parse-after-build check inside pfkey_msg_build(). + * Consolidated the 4 1-d extension bitmap arrays into one 4-d array. + * Add CVS log entry to bottom of file. + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/pfkey_v2_debug.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,181 @@ +/* + * @(#) pfkey version 2 debugging messages + * + * Copyright (C) 2001 Richard Guy Briggs + * and Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: pfkey_v2_debug.c,v 1.11 2005/04/06 17:45:16 mcr Exp $ + * + */ + +#ifdef __KERNEL__ + +# include /* for printk */ + +# include "openswan/ipsec_kversion.h" /* for malloc switch */ +# ifdef MALLOC_SLAB +# include /* kmalloc() */ +# else /* MALLOC_SLAB */ +# include /* kmalloc() */ +# endif /* MALLOC_SLAB */ +# include /* error codes */ +# include /* size_t */ +# include /* mark_bh */ + +# include /* struct device, and other headers */ +# include /* eth_type_trans */ +extern int debug_pfkey; + +#else /* __KERNEL__ */ + +# include +# include +# include + +#endif /* __KERNEL__ */ + +#include "openswan.h" +#include "pfkeyv2.h" +#include "pfkey.h" + +/* + * This file provides ASCII translations of PF_KEY magic numbers. + * + */ + +static char *pfkey_sadb_ext_strings[]={ + "reserved", /* SADB_EXT_RESERVED 0 */ + "security-association", /* SADB_EXT_SA 1 */ + "lifetime-current", /* SADB_EXT_LIFETIME_CURRENT 2 */ + "lifetime-hard", /* SADB_EXT_LIFETIME_HARD 3 */ + "lifetime-soft", /* SADB_EXT_LIFETIME_SOFT 4 */ + "source-address", /* SADB_EXT_ADDRESS_SRC 5 */ + "destination-address", /* SADB_EXT_ADDRESS_DST 6 */ + "proxy-address", /* SADB_EXT_ADDRESS_PROXY 7 */ + "authentication-key", /* SADB_EXT_KEY_AUTH 8 */ + "cipher-key", /* SADB_EXT_KEY_ENCRYPT 9 */ + "source-identity", /* SADB_EXT_IDENTITY_SRC 10 */ + "destination-identity", /* SADB_EXT_IDENTITY_DST 11 */ + "sensitivity-label", /* SADB_EXT_SENSITIVITY 12 */ + "proposal", /* SADB_EXT_PROPOSAL 13 */ + "supported-auth", /* SADB_EXT_SUPPORTED_AUTH 14 */ + "supported-cipher", /* SADB_EXT_SUPPORTED_ENCRYPT 15 */ + "spi-range", /* SADB_EXT_SPIRANGE 16 */ + "X-kmpprivate", /* SADB_X_EXT_KMPRIVATE 17 */ + "X-satype2", /* SADB_X_EXT_SATYPE2 18 */ + "X-security-association", /* SADB_X_EXT_SA2 19 */ + "X-destination-address2", /* SADB_X_EXT_ADDRESS_DST2 20 */ + "X-source-flow-address", /* SADB_X_EXT_ADDRESS_SRC_FLOW 21 */ + "X-dest-flow-address", /* SADB_X_EXT_ADDRESS_DST_FLOW 22 */ + "X-source-mask", /* SADB_X_EXT_ADDRESS_SRC_MASK 23 */ + "X-dest-mask", /* SADB_X_EXT_ADDRESS_DST_MASK 24 */ + "X-set-debug", /* SADB_X_EXT_DEBUG 25 */ + /* NAT_TRAVERSAL */ + "X-NAT-T-type", /* SADB_X_EXT_NAT_T_TYPE 26 */ + "X-NAT-T-sport", /* SADB_X_EXT_NAT_T_SPORT 27 */ + "X-NAT-T-dport", /* SADB_X_EXT_NAT_T_DPORT 28 */ + "X-NAT-T-OA", /* SADB_X_EXT_NAT_T_OA 29 */ +}; + +const char * +pfkey_v2_sadb_ext_string(int ext) +{ + if(ext <= SADB_EXT_MAX) { + return pfkey_sadb_ext_strings[ext]; + } else { + return "unknown-ext"; + } +} + + +static char *pfkey_sadb_type_strings[]={ + "reserved", /* SADB_RESERVED */ + "getspi", /* SADB_GETSPI */ + "update", /* SADB_UPDATE */ + "add", /* SADB_ADD */ + "delete", /* SADB_DELETE */ + "get", /* SADB_GET */ + "acquire", /* SADB_ACQUIRE */ + "register", /* SADB_REGISTER */ + "expire", /* SADB_EXPIRE */ + "flush", /* SADB_FLUSH */ + "dump", /* SADB_DUMP */ + "x-promisc", /* SADB_X_PROMISC */ + "x-pchange", /* SADB_X_PCHANGE */ + "x-groupsa", /* SADB_X_GRPSA */ + "x-addflow(eroute)", /* SADB_X_ADDFLOW */ + "x-delflow(eroute)", /* SADB_X_DELFLOW */ + "x-debug", /* SADB_X_DEBUG */ +}; + +const char * +pfkey_v2_sadb_type_string(int sadb_type) +{ + if(sadb_type <= SADB_MAX) { + return pfkey_sadb_type_strings[sadb_type]; + } else { + return "unknown-sadb-type"; + } +} + + + + +/* + * $Log: pfkey_v2_debug.c,v $ + * Revision 1.11 2005/04/06 17:45:16 mcr + * always include NAT-T names. + * + * Revision 1.10 2004/07/10 07:48:35 mcr + * Moved from linux/lib/libfreeswan/pfkey_v2_debug.c,v + * + * Revision 1.9 2004/03/08 01:59:08 ken + * freeswan.h -> openswan.h + * + * Revision 1.8 2003/12/10 01:20:19 mcr + * NAT-traversal patches to KLIPS. + * + * Revision 1.7 2002/09/20 05:01:26 rgb + * Fixed limit inclusion error in both type and ext string conversion. + * + * Revision 1.6 2002/04/24 07:55:32 mcr + * #include patches and Makefiles for post-reorg compilation. + * + * Revision 1.5 2002/04/24 07:36:40 mcr + * Moved from ./lib/pfkey_v2_debug.c,v + * + * Revision 1.4 2002/01/29 22:25:36 rgb + * Re-add ipsec_kversion.h to keep MALLOC happy. + * + * Revision 1.3 2002/01/29 01:59:09 mcr + * removal of kversions.h - sources that needed it now use ipsec_param.h. + * updating of IPv6 structures to match latest in6.h version. + * removed dead code from openswan.h that also duplicated kversions.h + * code. + * + * Revision 1.2 2002/01/20 20:34:50 mcr + * added pfkey_v2_sadb_type_string to decode sadb_type to string. + * + * Revision 1.1 2001/11/27 05:30:06 mcr + * initial set of debug strings for pfkey debugging. + * this will eventually only be included for debug builds. + * + * Revision 1.1 2001/09/21 04:12:03 mcr + * first compilable version. + * + * + * Local variables: + * c-file-style: "linux" + * End: + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/pfkey_v2_ext_bits.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,814 @@ +/* + * RFC2367 PF_KEYv2 Key management API message parser + * Copyright (C) 1999, 2000, 2001 Richard Guy Briggs. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: pfkey_v2_ext_bits.c,v 1.22 2005/05/11 01:45:31 mcr Exp $ + */ + +/* + * Template from klips/net/ipsec/ipsec/ipsec_parse.c. + */ + +char pfkey_v2_ext_bits_c_version[] = "$Id: pfkey_v2_ext_bits.c,v 1.22 2005/05/11 01:45:31 mcr Exp $"; + +/* + * Some ugly stuff to allow consistent debugging code for use in the + * kernel and in user space +*/ + +#ifdef __KERNEL__ + +# include /* for printk */ + +# include "openswan/ipsec_kversion.h" /* for malloc switch */ +# ifdef MALLOC_SLAB +# include /* kmalloc() */ +# else /* MALLOC_SLAB */ +# include /* kmalloc() */ +# endif /* MALLOC_SLAB */ +# include /* error codes */ +# include /* size_t */ +# include /* mark_bh */ + +# include /* struct device, and other headers */ +# include /* eth_type_trans */ +# include /* struct iphdr */ +# if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) +# include +# endif /* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */ + +#else /* __KERNEL__ */ + +# include +# include +# include +#endif + +#include +#include +#include + +unsigned int extensions_bitmaps[2/*in/out*/][2/*perm/req*/][SADB_EXTENSIONS_MAX] = { + +/* INBOUND EXTENSIONS */ +{ + +/* PERMITTED IN */ +{ +/* SADB_RESERVED */ +0 +, +/* SADB_GETSPI */ +1< openswan.h + * + * Revision 1.19 2003/12/22 21:38:13 mcr + * removed extraenous #endif. + * + * Revision 1.18 2003/12/22 19:34:41 mcr + * added 0.6c NAT-T patch. + * + * Revision 1.17 2003/12/10 01:20:19 mcr + * NAT-traversal patches to KLIPS. + * + * Revision 1.16 2003/10/31 02:27:12 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.15.30.1 2003/09/21 13:59:44 mcr + * pre-liminary X.509 patch - does not yet pass tests. + * + * Revision 1.15 2002/04/24 07:55:32 mcr + * #include patches and Makefiles for post-reorg compilation. + * + * Revision 1.14 2002/04/24 07:36:40 mcr + * Moved from ./lib/pfkey_v2_ext_bits.c,v + * + * Revision 1.13 2002/01/29 22:25:36 rgb + * Re-add ipsec_kversion.h to keep MALLOC happy. + * + * Revision 1.12 2002/01/29 01:59:10 mcr + * removal of kversions.h - sources that needed it now use ipsec_param.h. + * updating of IPv6 structures to match latest in6.h version. + * removed dead code from openswan.h that also duplicated kversions.h + * code. + * + * Revision 1.11 2001/10/18 04:45:24 rgb + * 2.4.9 kernel deprecates linux/malloc.h in favour of linux/slab.h, + * lib/openswan.h version macros moved to lib/kversions.h. + * Other compiler directive cleanups. + * + * Revision 1.10 2001/09/08 21:13:35 rgb + * Added pfkey ident extension support for ISAKMPd. (NetCelo) + * + * Revision 1.9 2001/06/14 19:35:16 rgb + * Update copyright date. + * + * Revision 1.8 2001/03/26 23:07:36 rgb + * Remove requirement for auth and enc key from UPDATE. + * + * Revision 1.7 2000/09/12 22:35:37 rgb + * Restructured to remove unused extensions from CLEARFLOW messages. + * + * Revision 1.6 2000/09/09 06:39:01 rgb + * Added comments for clarity. + * + * Revision 1.5 2000/06/02 22:54:14 rgb + * Added Gerhard Gessler's struct sockaddr_storage mods for IPv6 support. + * + * Revision 1.4 2000/01/21 06:27:56 rgb + * Added address cases for eroute flows. + * Added comments for each message type. + * Added klipsdebug switching capability. + * Fixed GRPSA bitfields. + * + * Revision 1.3 1999/12/01 22:20:27 rgb + * Remove requirement for a proxy address in an incoming getspi message. + * + * Revision 1.2 1999/11/27 11:57:06 rgb + * Consolidated the 4 1-d extension bitmap arrays into one 4-d array. + * Add CVS log entry to bottom of file. + * Cleaned out unused bits. + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/pfkey_v2_ext_process.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,951 @@ +/* + * @(#) RFC2367 PF_KEYv2 Key management API message parser + * Copyright (C) 1998-2003 Richard Guy Briggs. + * Copyright (C) 2004 Michael Richardson + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: pfkey_v2_ext_process.c,v 1.20.2.2 2006/10/06 21:39:26 paul Exp $ + */ + +/* + * Template from klips/net/ipsec/ipsec/ipsec_netlink.c. + */ + +char pfkey_v2_ext_process_c_version[] = "$Id: pfkey_v2_ext_process.c,v 1.20.2.2 2006/10/06 21:39:26 paul Exp $"; + +#ifndef AUTOCONF_INCLUDED +#include +#endif +#include +#include /* printk() */ + +#include "openswan/ipsec_param.h" + +#ifdef MALLOC_SLAB +# include /* kmalloc() */ +#else /* MALLOC_SLAB */ +# include /* kmalloc() */ +#endif /* MALLOC_SLAB */ +#include /* error codes */ +#include /* size_t */ +#include /* mark_bh */ + +#include /* struct device, and other headers */ +#include /* eth_type_trans */ +#include /* struct iphdr */ +#include + +#include + +#include + +#ifdef SPINLOCK +# ifdef SPINLOCK_23 +# include /* *lock* */ +# else /* SPINLOCK_23 */ +# include /* *lock* */ +# endif /* SPINLOCK_23 */ +#endif /* SPINLOCK */ +#ifdef NET_21 +# include +# define ip_chk_addr inet_addr_type +# define IS_MYADDR RTN_LOCAL +#endif + +#include +#ifdef NETLINK_SOCK +# include +#else +# include +#endif + +#include /* get_random_bytes() */ + +#include "openswan/radij.h" +#include "openswan/ipsec_encap.h" +#include "openswan/ipsec_sa.h" + +#include "openswan/ipsec_radij.h" +#include "openswan/ipsec_xform.h" +#include "openswan/ipsec_ah.h" +#include "openswan/ipsec_esp.h" +#include "openswan/ipsec_tunnel.h" +#include "openswan/ipsec_rcv.h" +#include "openswan/ipcomp.h" + +#include +#include + +#include "openswan/ipsec_proto.h" +#include "openswan/ipsec_alg.h" + +#define SENDERR(_x) do { error = -(_x); goto errlab; } while (0) + +int +pfkey_sa_process(struct sadb_ext *pfkey_ext, struct pfkey_extracted_data* extr) +{ + struct sadb_sa *pfkey_sa = (struct sadb_sa *)pfkey_ext; + int error = 0; + struct ipsec_sa* ipsp; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sa_process: .\n"); + + if(!extr || !extr->ips) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sa_process: " + "extr or extr->ips is NULL, fatal\n"); + SENDERR(EINVAL); + } + + switch(pfkey_ext->sadb_ext_type) { + case SADB_EXT_SA: + ipsp = extr->ips; + break; + case SADB_X_EXT_SA2: + if(extr->ips2 == NULL) { + extr->ips2 = ipsec_sa_alloc(&error); /* pass error var by pointer */ + } + if(extr->ips2 == NULL) { + SENDERR(-error); + } + ipsp = extr->ips2; + break; + default: + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sa_process: " + "invalid exttype=%d.\n", + pfkey_ext->sadb_ext_type); + SENDERR(EINVAL); + } + + ipsp->ips_said.spi = pfkey_sa->sadb_sa_spi; + ipsp->ips_replaywin = pfkey_sa->sadb_sa_replay; + ipsp->ips_state = pfkey_sa->sadb_sa_state; + ipsp->ips_flags = pfkey_sa->sadb_sa_flags; + ipsp->ips_replaywin_lastseq = ipsp->ips_replaywin_bitmap = 0; + ipsp->ips_ref_rel = pfkey_sa->sadb_x_sa_ref; + + switch(ipsp->ips_said.proto) { + case IPPROTO_AH: + ipsp->ips_authalg = pfkey_sa->sadb_sa_auth; + ipsp->ips_encalg = SADB_EALG_NONE; + break; + case IPPROTO_ESP: + ipsp->ips_authalg = pfkey_sa->sadb_sa_auth; + ipsp->ips_encalg = pfkey_sa->sadb_sa_encrypt; + ipsec_alg_sa_init(ipsp); + break; + case IPPROTO_IPIP: + ipsp->ips_authalg = AH_NONE; + ipsp->ips_encalg = ESP_NONE; + break; +#ifdef CONFIG_KLIPS_IPCOMP + case IPPROTO_COMP: + ipsp->ips_authalg = AH_NONE; + ipsp->ips_encalg = pfkey_sa->sadb_sa_encrypt; + break; +#endif /* CONFIG_KLIPS_IPCOMP */ + case IPPROTO_INT: + ipsp->ips_authalg = AH_NONE; + ipsp->ips_encalg = ESP_NONE; + break; + case 0: + break; + default: + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sa_process: " + "unknown proto=%d.\n", + ipsp->ips_said.proto); + SENDERR(EINVAL); + } + +errlab: + return error; +} + +int +pfkey_lifetime_process(struct sadb_ext *pfkey_ext, struct pfkey_extracted_data* extr) +{ + int error = 0; + struct sadb_lifetime *pfkey_lifetime = (struct sadb_lifetime *)pfkey_ext; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_lifetime_process: .\n"); + + if(!extr || !extr->ips) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_lifetime_process: " + "extr or extr->ips is NULL, fatal\n"); + SENDERR(EINVAL); + } + + switch(pfkey_lifetime->sadb_lifetime_exttype) { + case SADB_EXT_LIFETIME_CURRENT: + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_lifetime_process: " + "lifetime_current not supported yet.\n"); + SENDERR(EINVAL); + break; + case SADB_EXT_LIFETIME_HARD: + ipsec_lifetime_update_hard(&extr->ips->ips_life.ipl_allocations, + pfkey_lifetime->sadb_lifetime_allocations); + + ipsec_lifetime_update_hard(&extr->ips->ips_life.ipl_bytes, + pfkey_lifetime->sadb_lifetime_bytes); + + ipsec_lifetime_update_hard(&extr->ips->ips_life.ipl_addtime, + pfkey_lifetime->sadb_lifetime_addtime); + + ipsec_lifetime_update_hard(&extr->ips->ips_life.ipl_usetime, + pfkey_lifetime->sadb_lifetime_usetime); + + break; + + case SADB_EXT_LIFETIME_SOFT: + ipsec_lifetime_update_soft(&extr->ips->ips_life.ipl_allocations, + pfkey_lifetime->sadb_lifetime_allocations); + + ipsec_lifetime_update_soft(&extr->ips->ips_life.ipl_bytes, + pfkey_lifetime->sadb_lifetime_bytes); + + ipsec_lifetime_update_soft(&extr->ips->ips_life.ipl_addtime, + pfkey_lifetime->sadb_lifetime_addtime); + + ipsec_lifetime_update_soft(&extr->ips->ips_life.ipl_usetime, + pfkey_lifetime->sadb_lifetime_usetime); + + break; + default: + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_lifetime_process: " + "invalid exttype=%d.\n", + pfkey_ext->sadb_ext_type); + SENDERR(EINVAL); + } + +errlab: + return error; +} + +int +pfkey_address_process(struct sadb_ext *pfkey_ext, struct pfkey_extracted_data* extr) +{ + int error = 0; + int saddr_len = 0; + char ipaddr_txt[ADDRTOA_BUF]; + unsigned char **sap; + unsigned short * portp = 0; + struct sadb_address *pfkey_address = (struct sadb_address *)pfkey_ext; + struct sockaddr* s = (struct sockaddr*)((char*)pfkey_address + sizeof(*pfkey_address)); + struct ipsec_sa* ipsp; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_address_process:\n"); + + if(!extr || !extr->ips) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_address_process: " + "extr or extr->ips is NULL, fatal\n"); + SENDERR(EINVAL); + } + + switch(s->sa_family) { + case AF_INET: + saddr_len = sizeof(struct sockaddr_in); + addrtoa(((struct sockaddr_in*)s)->sin_addr, 0, ipaddr_txt, sizeof(ipaddr_txt)); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_address_process: " + "found address family=%d, AF_INET, %s.\n", + s->sa_family, + ipaddr_txt); + break; +#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) + case AF_INET6: + saddr_len = sizeof(struct sockaddr_in6); + break; +#endif /* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */ + default: + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_address_process: " + "s->sa_family=%d not supported.\n", + s->sa_family); + SENDERR(EPFNOSUPPORT); + } + + switch(pfkey_address->sadb_address_exttype) { + case SADB_EXT_ADDRESS_SRC: + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_address_process: " + "found src address.\n"); + sap = (unsigned char **)&(extr->ips->ips_addr_s); + extr->ips->ips_addr_s_size = saddr_len; + break; + case SADB_EXT_ADDRESS_DST: + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_address_process: " + "found dst address.\n"); + sap = (unsigned char **)&(extr->ips->ips_addr_d); + extr->ips->ips_addr_d_size = saddr_len; + break; + case SADB_EXT_ADDRESS_PROXY: + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_address_process: " + "found proxy address.\n"); + sap = (unsigned char **)&(extr->ips->ips_addr_p); + extr->ips->ips_addr_p_size = saddr_len; + break; + case SADB_X_EXT_ADDRESS_DST2: + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_address_process: " + "found 2nd dst address.\n"); + if(extr->ips2 == NULL) { + extr->ips2 = ipsec_sa_alloc(&error); /* pass error var by pointer */ + } + if(extr->ips2 == NULL) { + SENDERR(-error); + } + sap = (unsigned char **)&(extr->ips2->ips_addr_d); + extr->ips2->ips_addr_d_size = saddr_len; + break; + case SADB_X_EXT_ADDRESS_SRC_FLOW: + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_address_process: " + "found src flow address.\n"); + if(pfkey_alloc_eroute(&(extr->eroute)) == ENOMEM) { + SENDERR(ENOMEM); + } + sap = (unsigned char **)&(extr->eroute->er_eaddr.sen_ip_src); + portp = &(extr->eroute->er_eaddr.sen_sport); + break; + case SADB_X_EXT_ADDRESS_DST_FLOW: + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_address_process: " + "found dst flow address.\n"); + if(pfkey_alloc_eroute(&(extr->eroute)) == ENOMEM) { + SENDERR(ENOMEM); + } + sap = (unsigned char **)&(extr->eroute->er_eaddr.sen_ip_dst); + portp = &(extr->eroute->er_eaddr.sen_dport); + break; + case SADB_X_EXT_ADDRESS_SRC_MASK: + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_address_process: " + "found src mask address.\n"); + if(pfkey_alloc_eroute(&(extr->eroute)) == ENOMEM) { + SENDERR(ENOMEM); + } + sap = (unsigned char **)&(extr->eroute->er_emask.sen_ip_src); + portp = &(extr->eroute->er_emask.sen_sport); + break; + case SADB_X_EXT_ADDRESS_DST_MASK: + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_address_process: " + "found dst mask address.\n"); + if(pfkey_alloc_eroute(&(extr->eroute)) == ENOMEM) { + SENDERR(ENOMEM); + } + sap = (unsigned char **)&(extr->eroute->er_emask.sen_ip_dst); + portp = &(extr->eroute->er_emask.sen_dport); + break; +#ifdef NAT_TRAVERSAL + case SADB_X_EXT_NAT_T_OA: + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_address_process: " + "found NAT-OA address.\n"); + sap = (unsigned char **)&(extr->ips->ips_natt_oa); + extr->ips->ips_natt_oa_size = saddr_len; + break; +#endif + default: + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_address_process: " + "unrecognised ext_type=%d.\n", + pfkey_address->sadb_address_exttype); + SENDERR(EINVAL); + } + + switch(pfkey_address->sadb_address_exttype) { + case SADB_EXT_ADDRESS_SRC: + case SADB_EXT_ADDRESS_DST: + case SADB_EXT_ADDRESS_PROXY: + case SADB_X_EXT_ADDRESS_DST2: +#ifdef NAT_TRAVERSAL + case SADB_X_EXT_NAT_T_OA: +#endif + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_address_process: " + "allocating %d bytes for saddr.\n", + saddr_len); + if(!(*sap = kmalloc(saddr_len, GFP_KERNEL))) { + SENDERR(ENOMEM); + } + memcpy(*sap, s, saddr_len); + break; + default: + if(s->sa_family != AF_INET) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_address_process: " + "s->sa_family=%d not supported.\n", + s->sa_family); + SENDERR(EPFNOSUPPORT); + } + { + unsigned long *ulsap = (unsigned long *)sap; + *ulsap = ((struct sockaddr_in*)s)->sin_addr.s_addr; + } + + if (portp != 0) + *portp = ((struct sockaddr_in*)s)->sin_port; +#ifdef CONFIG_KLIPS_DEBUG + if(extr->eroute) { + char buf1[64], buf2[64]; + if (debug_pfkey) { + subnettoa(extr->eroute->er_eaddr.sen_ip_src, + extr->eroute->er_emask.sen_ip_src, 0, buf1, sizeof(buf1)); + subnettoa(extr->eroute->er_eaddr.sen_ip_dst, + extr->eroute->er_emask.sen_ip_dst, 0, buf2, sizeof(buf2)); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_address_parse: " + "extr->eroute set to %s:%d->%s:%d\n", + buf1, + ntohs(extr->eroute->er_eaddr.sen_sport), + buf2, + ntohs(extr->eroute->er_eaddr.sen_dport)); + } + } +#endif /* CONFIG_KLIPS_DEBUG */ + } + + ipsp = extr->ips; + switch(pfkey_address->sadb_address_exttype) { + case SADB_X_EXT_ADDRESS_DST2: + ipsp = extr->ips2; + case SADB_EXT_ADDRESS_DST: + if(s->sa_family == AF_INET) { + ipsp->ips_said.dst.u.v4.sin_addr.s_addr = ((struct sockaddr_in*)(ipsp->ips_addr_d))->sin_addr.s_addr; + ipsp->ips_said.dst.u.v4.sin_family = AF_INET; + addrtoa(((struct sockaddr_in*)(ipsp->ips_addr_d))->sin_addr, + 0, + ipaddr_txt, + sizeof(ipaddr_txt)); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_address_process: " + "ips_said.dst set to %s.\n", + ipaddr_txt); + } else { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_address_process: " + "uh, ips_said.dst doesn't do address family=%d yet, said will be invalid.\n", + s->sa_family); + } + default: + break; + } + + /* XXX check if port!=0 */ + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_address_process: successful.\n"); + errlab: + return error; +} + +int +pfkey_key_process(struct sadb_ext *pfkey_ext, struct pfkey_extracted_data* extr) +{ + int error = 0; + struct sadb_key *pfkey_key = (struct sadb_key *)pfkey_ext; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_key_process: .\n"); + + if(!extr || !extr->ips) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_key_process: " + "extr or extr->ips is NULL, fatal\n"); + SENDERR(EINVAL); + } + + switch(pfkey_key->sadb_key_exttype) { + case SADB_EXT_KEY_AUTH: + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_key_process: " + "allocating %d bytes for authkey.\n", + DIVUP(pfkey_key->sadb_key_bits, 8)); + if(!(extr->ips->ips_key_a = kmalloc(DIVUP(pfkey_key->sadb_key_bits, 8), GFP_KERNEL))) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_key_process: " + "memory allocation error.\n"); + SENDERR(ENOMEM); + } + extr->ips->ips_key_bits_a = pfkey_key->sadb_key_bits; + extr->ips->ips_key_a_size = DIVUP(pfkey_key->sadb_key_bits, 8); + memcpy(extr->ips->ips_key_a, + (char*)pfkey_key + sizeof(struct sadb_key), + extr->ips->ips_key_a_size); + break; + case SADB_EXT_KEY_ENCRYPT: /* Key(s) */ + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_key_process: " + "allocating %d bytes for enckey.\n", + DIVUP(pfkey_key->sadb_key_bits, 8)); + if(!(extr->ips->ips_key_e = kmalloc(DIVUP(pfkey_key->sadb_key_bits, 8), GFP_KERNEL))) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_key_process: " + "memory allocation error.\n"); + SENDERR(ENOMEM); + } + extr->ips->ips_key_bits_e = pfkey_key->sadb_key_bits; + extr->ips->ips_key_e_size = DIVUP(pfkey_key->sadb_key_bits, 8); + memcpy(extr->ips->ips_key_e, + (char*)pfkey_key + sizeof(struct sadb_key), + extr->ips->ips_key_e_size); + break; + default: + SENDERR(EINVAL); + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_key_process: " + "success.\n"); +errlab: + return error; +} + +int +pfkey_ident_process(struct sadb_ext *pfkey_ext, struct pfkey_extracted_data* extr) +{ + int error = 0; + struct sadb_ident *pfkey_ident = (struct sadb_ident *)pfkey_ext; + int data_len; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_ident_process: .\n"); + + if(!extr || !extr->ips) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_ident_process: " + "extr or extr->ips is NULL, fatal\n"); + SENDERR(EINVAL); + } + + switch(pfkey_ident->sadb_ident_exttype) { + case SADB_EXT_IDENTITY_SRC: + data_len = pfkey_ident->sadb_ident_len * IPSEC_PFKEYv2_ALIGN - sizeof(struct sadb_ident); + + extr->ips->ips_ident_s.type = pfkey_ident->sadb_ident_type; + extr->ips->ips_ident_s.id = pfkey_ident->sadb_ident_id; + extr->ips->ips_ident_s.len = pfkey_ident->sadb_ident_len; + if(data_len) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_ident_process: " + "allocating %d bytes for ident_s.\n", + data_len); + if(!(extr->ips->ips_ident_s.data + = kmalloc(data_len, GFP_KERNEL))) { + SENDERR(ENOMEM); + } + memcpy(extr->ips->ips_ident_s.data, + (char*)pfkey_ident + sizeof(struct sadb_ident), + data_len); + } else { + extr->ips->ips_ident_s.data = NULL; + } + break; + case SADB_EXT_IDENTITY_DST: /* Identity(ies) */ + data_len = pfkey_ident->sadb_ident_len * IPSEC_PFKEYv2_ALIGN - sizeof(struct sadb_ident); + + extr->ips->ips_ident_d.type = pfkey_ident->sadb_ident_type; + extr->ips->ips_ident_d.id = pfkey_ident->sadb_ident_id; + extr->ips->ips_ident_d.len = pfkey_ident->sadb_ident_len; + if(data_len) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_ident_process: " + "allocating %d bytes for ident_d.\n", + data_len); + if(!(extr->ips->ips_ident_d.data + = kmalloc(data_len, GFP_KERNEL))) { + SENDERR(ENOMEM); + } + memcpy(extr->ips->ips_ident_d.data, + (char*)pfkey_ident + sizeof(struct sadb_ident), + data_len); + } else { + extr->ips->ips_ident_d.data = NULL; + } + break; + default: + SENDERR(EINVAL); + } +errlab: + return error; +} + +int +pfkey_sens_process(struct sadb_ext *pfkey_ext, struct pfkey_extracted_data* extr) +{ + int error = 0; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_sens_process: " + "Sorry, I can't process exttype=%d yet.\n", + pfkey_ext->sadb_ext_type); + SENDERR(EINVAL); /* don't process these yet */ + errlab: + return error; +} + +int +pfkey_prop_process(struct sadb_ext *pfkey_ext, struct pfkey_extracted_data* extr) +{ + int error = 0; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_prop_process: " + "Sorry, I can't process exttype=%d yet.\n", + pfkey_ext->sadb_ext_type); + SENDERR(EINVAL); /* don't process these yet */ + + errlab: + return error; +} + +int +pfkey_supported_process(struct sadb_ext *pfkey_ext, struct pfkey_extracted_data* extr) +{ + int error = 0; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_supported_process: " + "Sorry, I can't process exttype=%d yet.\n", + pfkey_ext->sadb_ext_type); + SENDERR(EINVAL); /* don't process these yet */ + +errlab: + return error; +} + +int +pfkey_spirange_process(struct sadb_ext *pfkey_ext, struct pfkey_extracted_data* extr) +{ + int error = 0; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_spirange_process: .\n"); +/* errlab: */ + return error; +} + +int +pfkey_x_kmprivate_process(struct sadb_ext *pfkey_ext, struct pfkey_extracted_data* extr) +{ + int error = 0; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_kmprivate_process: " + "Sorry, I can't process exttype=%d yet.\n", + pfkey_ext->sadb_ext_type); + SENDERR(EINVAL); /* don't process these yet */ + +errlab: + return error; +} + +int +pfkey_x_satype_process(struct sadb_ext *pfkey_ext, struct pfkey_extracted_data* extr) +{ + int error = 0; + struct sadb_x_satype *pfkey_x_satype = (struct sadb_x_satype *)pfkey_ext; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_satype_process: .\n"); + + if(!extr || !extr->ips) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_satype_process: " + "extr or extr->ips is NULL, fatal\n"); + SENDERR(EINVAL); + } + + if(extr->ips2 == NULL) { + extr->ips2 = ipsec_sa_alloc(&error); /* pass error var by pointer */ + } + if(extr->ips2 == NULL) { + SENDERR(-error); + } + if(!(extr->ips2->ips_said.proto = satype2proto(pfkey_x_satype->sadb_x_satype_satype))) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_satype_process: " + "proto lookup from satype=%d failed.\n", + pfkey_x_satype->sadb_x_satype_satype); + SENDERR(EINVAL); + } + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_satype_process: " + "protocol==%d decoded from satype==%d(%s).\n", + extr->ips2->ips_said.proto, + pfkey_x_satype->sadb_x_satype_satype, + satype2name(pfkey_x_satype->sadb_x_satype_satype)); + +errlab: + return error; +} + + +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL +int +pfkey_x_nat_t_type_process(struct sadb_ext *pfkey_ext, struct pfkey_extracted_data* extr) +{ + int error = 0; + struct sadb_x_nat_t_type *pfkey_x_nat_t_type = (struct sadb_x_nat_t_type *)pfkey_ext; + + if(!pfkey_x_nat_t_type) { + printk("klips_debug:pfkey_x_nat_t_type_process: " + "null pointer passed in\n"); + SENDERR(EINVAL); + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_nat_t_type_process: %d.\n", + pfkey_x_nat_t_type->sadb_x_nat_t_type_type); + + if(!extr || !extr->ips) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_nat_t_type_process: " + "extr or extr->ips is NULL, fatal\n"); + SENDERR(EINVAL); + } + + switch(pfkey_x_nat_t_type->sadb_x_nat_t_type_type) { + case ESPINUDP_WITH_NON_IKE: /* with Non-IKE (older version) */ + case ESPINUDP_WITH_NON_ESP: /* with Non-ESP */ + + extr->ips->ips_natt_type = pfkey_x_nat_t_type->sadb_x_nat_t_type_type; + break; + default: + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_nat_t_type_process: " + "unknown type %d.\n", + pfkey_x_nat_t_type->sadb_x_nat_t_type_type); + SENDERR(EINVAL); + break; + } + +errlab: + return error; +} + +int +pfkey_x_nat_t_port_process(struct sadb_ext *pfkey_ext, struct pfkey_extracted_data* extr) +{ + int error = 0; + struct sadb_x_nat_t_port *pfkey_x_nat_t_port = (struct sadb_x_nat_t_port *)pfkey_ext; + + if(!pfkey_x_nat_t_port) { + printk("klips_debug:pfkey_x_nat_t_port_process: " + "null pointer passed in\n"); + SENDERR(EINVAL); + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_nat_t_port_process: %d/%d.\n", + pfkey_x_nat_t_port->sadb_x_nat_t_port_exttype, + pfkey_x_nat_t_port->sadb_x_nat_t_port_port); + + if(!extr || !extr->ips) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_nat_t_type_process: " + "extr or extr->ips is NULL, fatal\n"); + SENDERR(EINVAL); + } + + switch(pfkey_x_nat_t_port->sadb_x_nat_t_port_exttype) { + case SADB_X_EXT_NAT_T_SPORT: + extr->ips->ips_natt_sport = pfkey_x_nat_t_port->sadb_x_nat_t_port_port; + break; + case SADB_X_EXT_NAT_T_DPORT: + extr->ips->ips_natt_dport = pfkey_x_nat_t_port->sadb_x_nat_t_port_port; + break; + default: + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_nat_t_port_process: " + "unknown exttype %d.\n", + pfkey_x_nat_t_port->sadb_x_nat_t_port_exttype); + SENDERR(EINVAL); + break; + } + +errlab: + return error; +} +#endif + +int +pfkey_x_debug_process(struct sadb_ext *pfkey_ext, struct pfkey_extracted_data* extr) +{ + int error = 0; + struct sadb_x_debug *pfkey_x_debug = (struct sadb_x_debug *)pfkey_ext; + + if(!pfkey_x_debug) { + printk("klips_debug:pfkey_x_debug_process: " + "null pointer passed in\n"); + SENDERR(EINVAL); + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_debug_process: .\n"); + +#ifdef CONFIG_KLIPS_DEBUG + if(pfkey_x_debug->sadb_x_debug_netlink >> + (sizeof(pfkey_x_debug->sadb_x_debug_netlink) * 8 - 1)) { + pfkey_x_debug->sadb_x_debug_netlink &= + ~(1 << (sizeof(pfkey_x_debug->sadb_x_debug_netlink) * 8 -1)); + debug_tunnel |= pfkey_x_debug->sadb_x_debug_tunnel; + debug_netlink |= pfkey_x_debug->sadb_x_debug_netlink; + debug_xform |= pfkey_x_debug->sadb_x_debug_xform; + debug_eroute |= pfkey_x_debug->sadb_x_debug_eroute; + debug_spi |= pfkey_x_debug->sadb_x_debug_spi; + debug_radij |= pfkey_x_debug->sadb_x_debug_radij; + debug_esp |= pfkey_x_debug->sadb_x_debug_esp; + debug_ah |= pfkey_x_debug->sadb_x_debug_ah; + debug_rcv |= pfkey_x_debug->sadb_x_debug_rcv; + debug_pfkey |= pfkey_x_debug->sadb_x_debug_pfkey; +#ifdef CONFIG_KLIPS_IPCOMP + sysctl_ipsec_debug_ipcomp |= pfkey_x_debug->sadb_x_debug_ipcomp; +#endif /* CONFIG_KLIPS_IPCOMP */ + sysctl_ipsec_debug_verbose |= pfkey_x_debug->sadb_x_debug_verbose; + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_debug_process: " + "set\n"); + } else { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_debug_process: " + "unset\n"); + debug_tunnel &= pfkey_x_debug->sadb_x_debug_tunnel; + debug_netlink &= pfkey_x_debug->sadb_x_debug_netlink; + debug_xform &= pfkey_x_debug->sadb_x_debug_xform; + debug_eroute &= pfkey_x_debug->sadb_x_debug_eroute; + debug_spi &= pfkey_x_debug->sadb_x_debug_spi; + debug_radij &= pfkey_x_debug->sadb_x_debug_radij; + debug_esp &= pfkey_x_debug->sadb_x_debug_esp; + debug_ah &= pfkey_x_debug->sadb_x_debug_ah; + debug_rcv &= pfkey_x_debug->sadb_x_debug_rcv; + debug_pfkey &= pfkey_x_debug->sadb_x_debug_pfkey; +#ifdef CONFIG_KLIPS_IPCOMP + sysctl_ipsec_debug_ipcomp &= pfkey_x_debug->sadb_x_debug_ipcomp; +#endif /* CONFIG_KLIPS_IPCOMP */ + sysctl_ipsec_debug_verbose &= pfkey_x_debug->sadb_x_debug_verbose; + } +#else /* CONFIG_KLIPS_DEBUG */ + printk("klips_debug:pfkey_x_debug_process: " + "debugging not enabled\n"); + SENDERR(EINVAL); +#endif /* CONFIG_KLIPS_DEBUG */ + +errlab: + return error; +} + +/* + * $Log: pfkey_v2_ext_process.c,v $ + * Revision 1.20.2.2 2006/10/06 21:39:26 paul + * Fix for 2.6.18+ only include linux/config.h if AUTOCONF_INCLUDED is not + * set. This is defined through autoconf.h which is included through the + * linux kernel build macros. + * + * Revision 1.20.2.1 2006/04/20 16:33:07 mcr + * remove all of CONFIG_KLIPS_ALG --- one can no longer build without it. + * Fix in-kernel module compilation. Sub-makefiles do not work. + * + * Revision 1.20 2005/04/29 05:10:22 mcr + * removed from extraenous includes to make unit testing easier. + * + * Revision 1.19 2004/12/04 07:14:18 mcr + * resolution to gcc3-ism was wrong. fixed to assign correct + * variable. + * + * Revision 1.18 2004/12/03 21:25:57 mcr + * compile time fixes for running on 2.6. + * still experimental. + * + * Revision 1.17 2004/08/21 00:45:04 mcr + * CONFIG_KLIPS_NAT was wrong, also need to include udp.h. + * + * Revision 1.16 2004/07/10 19:11:18 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.15 2004/04/06 02:49:26 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.14 2004/02/03 03:13:59 mcr + * no longer #ifdef out NON_ESP mode. That was a mistake. + * + * Revision 1.13 2003/12/15 18:13:12 mcr + * when compiling with NAT traversal, don't assume that the + * kernel has been patched, unless CONFIG_IPSEC_NAT_NON_ESP + * is set. + * + * Revision 1.12.2.1 2003/12/22 15:25:52 jjo + * Merged algo-0.8.1-rc11-test1 into alg-branch + * + * Revision 1.12 2003/12/10 01:14:27 mcr + * NAT-traversal patches to KLIPS. + * + * Revision 1.11 2003/10/31 02:27:55 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.10.4.2 2003/10/29 01:30:41 mcr + * elimited "struct sa_id". + * + * Revision 1.10.4.1 2003/09/21 13:59:56 mcr + * pre-liminary X.509 patch - does not yet pass tests. + * + * Revision 1.10 2003/02/06 01:51:41 rgb + * Removed no longer relevant comment + * + * Revision 1.9 2003/01/30 02:32:44 rgb + * + * Transmit error code through to caller from callee for better diagnosis of problems. + * + * Revision 1.8 2002/12/13 22:42:22 mcr + * restored sa_ref code + * + * Revision 1.7 2002/12/13 22:40:48 mcr + * temporarily removed sadb_x_sa_ref reference for 2.xx + * + * Revision 1.6 2002/10/05 05:02:58 dhr + * + * C labels go on statements + * + * Revision 1.5 2002/09/20 15:41:08 rgb + * Switch from pfkey_alloc_ipsec_sa() to ipsec_sa_alloc(). + * Added sadb_x_sa_ref to struct sadb_sa. + * + * Revision 1.4 2002/09/20 05:02:02 rgb + * Added memory allocation debugging. + * + * Revision 1.3 2002/07/24 18:44:54 rgb + * Type fiddling to tame ia64 compiler. + * + * Revision 1.2 2002/05/27 18:55:03 rgb + * Remove final vistiges of tdb references via IPSEC_KLIPS1_COMPAT. + * + * Revision 1.1 2002/05/14 02:33:51 rgb + * Moved all the extension processing functions to pfkey_v2_ext_process.c. + * + * + * Local variables: + * c-file-style: "linux" + * End: + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/pfkey_v2_parse.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,1846 @@ +/* + * RFC2367 PF_KEYv2 Key management API message parser + * Copyright (C) 1999, 2000, 2001 Richard Guy Briggs. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: pfkey_v2_parse.c,v 1.65 2005/04/06 17:46:05 mcr Exp $ + */ + +/* + * Template from klips/net/ipsec/ipsec/ipsec_parser.c. + */ + +char pfkey_v2_parse_c_version[] = "$Id: pfkey_v2_parse.c,v 1.65 2005/04/06 17:46:05 mcr Exp $"; + +/* + * Some ugly stuff to allow consistent debugging code for use in the + * kernel and in user space +*/ + +#ifdef __KERNEL__ + +# include /* for printk */ + +#include "openswan/ipsec_kversion.h" /* for malloc switch */ + +# ifdef MALLOC_SLAB +# include /* kmalloc() */ +# else /* MALLOC_SLAB */ +# include /* kmalloc() */ +# endif /* MALLOC_SLAB */ +# include /* error codes */ +# include /* size_t */ +# include /* mark_bh */ + +# include /* struct device, and other headers */ +# include /* eth_type_trans */ +# include /* struct iphdr */ +# if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) +# include /* struct ipv6hdr */ +# endif /* if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */ +extern int debug_pfkey; + +# include + +#include "openswan/ipsec_encap.h" + +#else /* __KERNEL__ */ + +# include +# include +# include + +# include +# include "constants.h" +# include "programs/pluto/defs.h" /* for PRINTF_LIKE */ + +#endif /* __KERNEL__ */ + + +#include +#include + +#include "openswan/ipsec_sa.h" /* IPSEC_SAREF_NULL, IPSEC_SA_REF_TABLE_IDX_WIDTH */ + +/* + * how to handle debugging for pfkey. + */ +#include + +unsigned int pfkey_lib_debug = PF_KEY_DEBUG_PARSE_NONE; +void (*pfkey_debug_func)(const char *message, ...) PRINTF_LIKE(1); +void (*pfkey_error_func)(const char *message, ...) PRINTF_LIKE(1); + + +#define SENDERR(_x) do { error = -(_x); goto errlab; } while (0) + +struct satype_tbl { + uint8_t proto; + uint8_t satype; + char* name; +} static satype_tbl[] = { +#ifdef __KERNEL__ + { IPPROTO_ESP, SADB_SATYPE_ESP, "ESP" }, + { IPPROTO_AH, SADB_SATYPE_AH, "AH" }, + { IPPROTO_IPIP, SADB_X_SATYPE_IPIP, "IPIP" }, +#ifdef CONFIG_KLIPS_IPCOMP + { IPPROTO_COMP, SADB_X_SATYPE_COMP, "COMP" }, +#endif /* CONFIG_KLIPS_IPCOMP */ + { IPPROTO_INT, SADB_X_SATYPE_INT, "INT" }, +#else /* __KERNEL__ */ + { SA_ESP, SADB_SATYPE_ESP, "ESP" }, + { SA_AH, SADB_SATYPE_AH, "AH" }, + { SA_IPIP, SADB_X_SATYPE_IPIP, "IPIP" }, + { SA_COMP, SADB_X_SATYPE_COMP, "COMP" }, + { SA_INT, SADB_X_SATYPE_INT, "INT" }, +#endif /* __KERNEL__ */ + { 0, 0, "UNKNOWN" } +}; + +uint8_t +satype2proto(uint8_t satype) +{ + int i =0; + + while(satype_tbl[i].satype != satype && satype_tbl[i].satype != 0) { + i++; + } + return satype_tbl[i].proto; +} + +uint8_t +proto2satype(uint8_t proto) +{ + int i = 0; + + while(satype_tbl[i].proto != proto && satype_tbl[i].proto != 0) { + i++; + } + return satype_tbl[i].satype; +} + +char* +satype2name(uint8_t satype) +{ + int i = 0; + + while(satype_tbl[i].satype != satype && satype_tbl[i].satype != 0) { + i++; + } + return satype_tbl[i].name; +} + +char* +proto2name(uint8_t proto) +{ + int i = 0; + + while(satype_tbl[i].proto != proto && satype_tbl[i].proto != 0) { + i++; + } + return satype_tbl[i].name; +} + +/* Default extension parsers taken from the KLIPS code */ + +DEBUG_NO_STATIC int +pfkey_sa_parse(struct sadb_ext *pfkey_ext) +{ + int error = 0; + struct sadb_sa *pfkey_sa = (struct sadb_sa *)pfkey_ext; +#if 0 + struct sadb_sa sav2; +#endif + + /* sanity checks... */ + if(!pfkey_sa) { + ERROR("pfkey_sa_parse: " + "NULL pointer passed in.\n"); + SENDERR(EINVAL); + } + +#if 0 + /* check if this structure is short, and if so, fix it up. + * XXX this is NOT the way to do things. + */ + if(pfkey_sa->sadb_sa_len == sizeof(struct sadb_sa_v1)/IPSEC_PFKEYv2_ALIGN) { + + /* yes, so clear out a temporary structure, and copy first */ + memset(&sav2, 0, sizeof(sav2)); + memcpy(&sav2, pfkey_sa, sizeof(struct sadb_sa_v1)); + sav2.sadb_x_sa_ref=-1; + sav2.sadb_sa_len = sizeof(struct sadb_sa) / IPSEC_PFKEYv2_ALIGN; + + pfkey_sa = &sav2; + } +#endif + + + if(pfkey_sa->sadb_sa_len != sizeof(struct sadb_sa) / IPSEC_PFKEYv2_ALIGN) { + ERROR( + "pfkey_sa_parse: " + "length wrong pfkey_sa->sadb_sa_len=%d sizeof(struct sadb_sa)=%d.\n", + pfkey_sa->sadb_sa_len, + (int)sizeof(struct sadb_sa)); + SENDERR(EINVAL); + } + +#if SADB_EALG_MAX < 255 + if(pfkey_sa->sadb_sa_encrypt > SADB_EALG_MAX) { + ERROR( + "pfkey_sa_parse: " + "pfkey_sa->sadb_sa_encrypt=%d > SADB_EALG_MAX=%d.\n", + pfkey_sa->sadb_sa_encrypt, + SADB_EALG_MAX); + SENDERR(EINVAL); + } +#endif + +#if SADB_AALG_MAX < 255 + if(pfkey_sa->sadb_sa_auth > SADB_AALG_MAX) { + ERROR( + "pfkey_sa_parse: " + "pfkey_sa->sadb_sa_auth=%d > SADB_AALG_MAX=%d.\n", + pfkey_sa->sadb_sa_auth, + SADB_AALG_MAX); + SENDERR(EINVAL); + } +#endif + +#if SADB_SASTATE_MAX < 255 + if(pfkey_sa->sadb_sa_state > SADB_SASTATE_MAX) { + ERROR( + "pfkey_sa_parse: " + "state=%d exceeds MAX=%d.\n", + pfkey_sa->sadb_sa_state, + SADB_SASTATE_MAX); + SENDERR(EINVAL); + } +#endif + + if(pfkey_sa->sadb_sa_state == SADB_SASTATE_DEAD) { + ERROR( + "pfkey_sa_parse: " + "state=%d is DEAD=%d.\n", + pfkey_sa->sadb_sa_state, + SADB_SASTATE_DEAD); + SENDERR(EINVAL); + } + + if(pfkey_sa->sadb_sa_replay > 64) { + ERROR( + "pfkey_sa_parse: " + "replay window size: %d -- must be 0 <= size <= 64\n", + pfkey_sa->sadb_sa_replay); + SENDERR(EINVAL); + } + + if(! ((pfkey_sa->sadb_sa_exttype == SADB_EXT_SA) || + (pfkey_sa->sadb_sa_exttype == SADB_X_EXT_SA2))) + { + ERROR( + "pfkey_sa_parse: " + "unknown exttype=%d, expecting SADB_EXT_SA=%d or SADB_X_EXT_SA2=%d.\n", + pfkey_sa->sadb_sa_exttype, + SADB_EXT_SA, + SADB_X_EXT_SA2); + SENDERR(EINVAL); + } + + if((IPSEC_SAREF_NULL != pfkey_sa->sadb_x_sa_ref) && (pfkey_sa->sadb_x_sa_ref >= (1 << IPSEC_SA_REF_TABLE_IDX_WIDTH))) { + ERROR( + "pfkey_sa_parse: " + "SAref=%d must be (SAref == IPSEC_SAREF_NULL(%d) || SAref < IPSEC_SA_REF_TABLE_NUM_ENTRIES(%d)).\n", + pfkey_sa->sadb_x_sa_ref, + IPSEC_SAREF_NULL, + IPSEC_SA_REF_TABLE_NUM_ENTRIES); + SENDERR(EINVAL); + } + + DEBUGGING(PF_KEY_DEBUG_PARSE_STRUCT, + "pfkey_sa_parse: " + "successfully found len=%d exttype=%d(%s) spi=%08lx replay=%d state=%d auth=%d encrypt=%d flags=%d ref=%d.\n", + pfkey_sa->sadb_sa_len, + pfkey_sa->sadb_sa_exttype, + pfkey_v2_sadb_ext_string(pfkey_sa->sadb_sa_exttype), + (long unsigned int)ntohl(pfkey_sa->sadb_sa_spi), + pfkey_sa->sadb_sa_replay, + pfkey_sa->sadb_sa_state, + pfkey_sa->sadb_sa_auth, + pfkey_sa->sadb_sa_encrypt, + pfkey_sa->sadb_sa_flags, + pfkey_sa->sadb_x_sa_ref); + + errlab: + return error; +} + +DEBUG_NO_STATIC int +pfkey_lifetime_parse(struct sadb_ext *pfkey_ext) +{ + int error = 0; + struct sadb_lifetime *pfkey_lifetime = (struct sadb_lifetime *)pfkey_ext; + + DEBUGGING(PF_KEY_DEBUG_PARSE_FLOW, + "pfkey_lifetime_parse:enter\n"); + /* sanity checks... */ + if(!pfkey_lifetime) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_lifetime_parse: " + "NULL pointer passed in.\n"); + SENDERR(EINVAL); + } + + if(pfkey_lifetime->sadb_lifetime_len != + sizeof(struct sadb_lifetime) / IPSEC_PFKEYv2_ALIGN) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_lifetime_parse: " + "length wrong pfkey_lifetime->sadb_lifetime_len=%d sizeof(struct sadb_lifetime)=%d.\n", + pfkey_lifetime->sadb_lifetime_len, + (int)sizeof(struct sadb_lifetime)); + SENDERR(EINVAL); + } + + if((pfkey_lifetime->sadb_lifetime_exttype != SADB_EXT_LIFETIME_HARD) && + (pfkey_lifetime->sadb_lifetime_exttype != SADB_EXT_LIFETIME_SOFT) && + (pfkey_lifetime->sadb_lifetime_exttype != SADB_EXT_LIFETIME_CURRENT)) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_lifetime_parse: " + "unexpected ext_type=%d.\n", + pfkey_lifetime->sadb_lifetime_exttype); + SENDERR(EINVAL); + } + + DEBUGGING(PF_KEY_DEBUG_PARSE_STRUCT, + "pfkey_lifetime_parse: " + "life_type=%d(%s) alloc=%u bytes=%u add=%u use=%u pkts=%u.\n", + pfkey_lifetime->sadb_lifetime_exttype, + pfkey_v2_sadb_ext_string(pfkey_lifetime->sadb_lifetime_exttype), + pfkey_lifetime->sadb_lifetime_allocations, + (unsigned)pfkey_lifetime->sadb_lifetime_bytes, + (unsigned)pfkey_lifetime->sadb_lifetime_addtime, + (unsigned)pfkey_lifetime->sadb_lifetime_usetime, + pfkey_lifetime->sadb_x_lifetime_packets); +errlab: + return error; +} + +DEBUG_NO_STATIC int +pfkey_address_parse(struct sadb_ext *pfkey_ext) +{ + int error = 0; + int saddr_len = 0; + struct sadb_address *pfkey_address = (struct sadb_address *)pfkey_ext; + struct sockaddr* s = (struct sockaddr*)((char*)pfkey_address + sizeof(*pfkey_address)); + char ipaddr_txt[ADDRTOT_BUF]; + + /* sanity checks... */ + if(!pfkey_address) { + ERROR( + "pfkey_address_parse: " + "NULL pointer passed in.\n"); + SENDERR(EINVAL); + } + + if(pfkey_address->sadb_address_len < + (sizeof(struct sadb_address) + sizeof(struct sockaddr))/ + IPSEC_PFKEYv2_ALIGN) { + ERROR("pfkey_address_parse: " + "size wrong 1 ext_len=%d, adr_ext_len=%d, saddr_len=%d.\n", + pfkey_address->sadb_address_len, + (int)sizeof(struct sadb_address), + (int)sizeof(struct sockaddr)); + SENDERR(EINVAL); + } + + if(pfkey_address->sadb_address_reserved) { + ERROR("pfkey_address_parse: " + "res=%d, must be zero.\n", + pfkey_address->sadb_address_reserved); + SENDERR(EINVAL); + } + + switch(pfkey_address->sadb_address_exttype) { + case SADB_EXT_ADDRESS_SRC: + case SADB_EXT_ADDRESS_DST: + case SADB_EXT_ADDRESS_PROXY: + case SADB_X_EXT_ADDRESS_DST2: + case SADB_X_EXT_ADDRESS_SRC_FLOW: + case SADB_X_EXT_ADDRESS_DST_FLOW: + case SADB_X_EXT_ADDRESS_SRC_MASK: + case SADB_X_EXT_ADDRESS_DST_MASK: +#ifdef NAT_TRAVERSAL + case SADB_X_EXT_NAT_T_OA: +#endif + break; + default: + ERROR( + "pfkey_address_parse: " + "unexpected ext_type=%d.\n", + pfkey_address->sadb_address_exttype); + SENDERR(ENOPKG); + } + + switch(s->sa_family) { + case AF_INET: + saddr_len = sizeof(struct sockaddr_in); + sprintf(ipaddr_txt, "%d.%d.%d.%d" + , (((struct sockaddr_in*)s)->sin_addr.s_addr >> 0) & 0xFF + , (((struct sockaddr_in*)s)->sin_addr.s_addr >> 8) & 0xFF + , (((struct sockaddr_in*)s)->sin_addr.s_addr >> 16) & 0xFF + , (((struct sockaddr_in*)s)->sin_addr.s_addr >> 24) & 0xFF); + DEBUGGING(PF_KEY_DEBUG_PARSE_STRUCT, + "pfkey_address_parse: " + "found exttype=%u(%s) family=%d(AF_INET) address=%s proto=%u port=%u.\n", + pfkey_address->sadb_address_exttype, + pfkey_v2_sadb_ext_string(pfkey_address->sadb_address_exttype), + s->sa_family, + ipaddr_txt, + pfkey_address->sadb_address_proto, + ntohs(((struct sockaddr_in*)s)->sin_port)); + break; + case AF_INET6: + saddr_len = sizeof(struct sockaddr_in6); + sprintf(ipaddr_txt, "%x:%x:%x:%x:%x:%x:%x:%x" + , ntohs(((struct sockaddr_in6*)s)->sin6_addr.s6_addr16[0]) + , ntohs(((struct sockaddr_in6*)s)->sin6_addr.s6_addr16[1]) + , ntohs(((struct sockaddr_in6*)s)->sin6_addr.s6_addr16[2]) + , ntohs(((struct sockaddr_in6*)s)->sin6_addr.s6_addr16[3]) + , ntohs(((struct sockaddr_in6*)s)->sin6_addr.s6_addr16[4]) + , ntohs(((struct sockaddr_in6*)s)->sin6_addr.s6_addr16[5]) + , ntohs(((struct sockaddr_in6*)s)->sin6_addr.s6_addr16[6]) + , ntohs(((struct sockaddr_in6*)s)->sin6_addr.s6_addr16[7])); + DEBUGGING(PF_KEY_DEBUG_PARSE_STRUCT, + "pfkey_address_parse: " + "found exttype=%u(%s) family=%d(AF_INET6) address=%s proto=%u port=%u.\n", + pfkey_address->sadb_address_exttype, + pfkey_v2_sadb_ext_string(pfkey_address->sadb_address_exttype), + s->sa_family, + ipaddr_txt, + pfkey_address->sadb_address_proto, + ((struct sockaddr_in6*)s)->sin6_port); + break; + default: + ERROR( + "pfkey_address_parse: " + "s->sa_family=%d not supported.\n", + s->sa_family); + SENDERR(EPFNOSUPPORT); + } + + if(pfkey_address->sadb_address_len != + DIVUP(sizeof(struct sadb_address) + saddr_len, IPSEC_PFKEYv2_ALIGN)) { + ERROR( + "pfkey_address_parse: " + "size wrong 2 ext_len=%d, adr_ext_len=%d, saddr_len=%d.\n", + pfkey_address->sadb_address_len, + (int)sizeof(struct sadb_address), + saddr_len); + SENDERR(EINVAL); + } + + if(pfkey_address->sadb_address_prefixlen != 0) { + ERROR( + "pfkey_address_parse: " + "address prefixes not supported yet.\n"); + SENDERR(EAFNOSUPPORT); /* not supported yet */ + } + + /* XXX check if port!=0 */ + + DEBUGGING(PF_KEY_DEBUG_PARSE_FLOW, + "pfkey_address_parse: successful.\n"); + errlab: + return error; +} + +DEBUG_NO_STATIC int +pfkey_key_parse(struct sadb_ext *pfkey_ext) +{ + int error = 0; + struct sadb_key *pfkey_key = (struct sadb_key *)pfkey_ext; + + /* sanity checks... */ + + if(!pfkey_key) { + ERROR( + "pfkey_key_parse: " + "NULL pointer passed in.\n"); + SENDERR(EINVAL); + } + + if(pfkey_key->sadb_key_len < sizeof(struct sadb_key) / IPSEC_PFKEYv2_ALIGN) { + ERROR( + "pfkey_key_parse: " + "size wrong ext_len=%d, key_ext_len=%d.\n", + pfkey_key->sadb_key_len, + (int)sizeof(struct sadb_key)); + SENDERR(EINVAL); + } + + if(!pfkey_key->sadb_key_bits) { + ERROR( + "pfkey_key_parse: " + "key length set to zero, must be non-zero.\n"); + SENDERR(EINVAL); + } + + if(pfkey_key->sadb_key_len != + DIVUP(sizeof(struct sadb_key) * OCTETBITS + pfkey_key->sadb_key_bits, + PFKEYBITS)) { + ERROR( + "pfkey_key_parse: " + "key length=%d does not agree with extension length=%d.\n", + pfkey_key->sadb_key_bits, + pfkey_key->sadb_key_len); + SENDERR(EINVAL); + } + + if(pfkey_key->sadb_key_reserved) { + ERROR( + "pfkey_key_parse: " + "res=%d, must be zero.\n", + pfkey_key->sadb_key_reserved); + SENDERR(EINVAL); + } + + if(! ( (pfkey_key->sadb_key_exttype == SADB_EXT_KEY_AUTH) || + (pfkey_key->sadb_key_exttype == SADB_EXT_KEY_ENCRYPT))) { + ERROR( + "pfkey_key_parse: " + "expecting extension type AUTH or ENCRYPT, got %d.\n", + pfkey_key->sadb_key_exttype); + SENDERR(EINVAL); + } + + DEBUGGING(PF_KEY_DEBUG_PARSE_STRUCT, + "pfkey_key_parse: " + "success, found len=%d exttype=%d(%s) bits=%d reserved=%d.\n", + pfkey_key->sadb_key_len, + pfkey_key->sadb_key_exttype, + pfkey_v2_sadb_ext_string(pfkey_key->sadb_key_exttype), + pfkey_key->sadb_key_bits, + pfkey_key->sadb_key_reserved); + +errlab: + return error; +} + +DEBUG_NO_STATIC int +pfkey_ident_parse(struct sadb_ext *pfkey_ext) +{ + int error = 0; + struct sadb_ident *pfkey_ident = (struct sadb_ident *)pfkey_ext; + + /* sanity checks... */ + if(pfkey_ident->sadb_ident_len < sizeof(struct sadb_ident) / IPSEC_PFKEYv2_ALIGN) { + ERROR( + "pfkey_ident_parse: " + "size wrong ext_len=%d, key_ext_len=%d.\n", + pfkey_ident->sadb_ident_len, + (int)sizeof(struct sadb_ident)); + SENDERR(EINVAL); + } + + if(pfkey_ident->sadb_ident_type > SADB_IDENTTYPE_MAX) { + ERROR( + "pfkey_ident_parse: " + "ident_type=%d out of range, must be less than %d.\n", + pfkey_ident->sadb_ident_type, + SADB_IDENTTYPE_MAX); + SENDERR(EINVAL); + } + + if(pfkey_ident->sadb_ident_reserved) { + ERROR( + "pfkey_ident_parse: " + "res=%d, must be zero.\n", + pfkey_ident->sadb_ident_reserved); + SENDERR(EINVAL); + } + + /* string terminator/padding must be zero */ + if(pfkey_ident->sadb_ident_len > sizeof(struct sadb_ident) / IPSEC_PFKEYv2_ALIGN) { + if(*((char*)pfkey_ident + pfkey_ident->sadb_ident_len * IPSEC_PFKEYv2_ALIGN - 1)) { + ERROR( + "pfkey_ident_parse: " + "string padding must be zero, last is 0x%02x.\n", + *((char*)pfkey_ident + + pfkey_ident->sadb_ident_len * IPSEC_PFKEYv2_ALIGN - 1)); + SENDERR(EINVAL); + } + } + + if( ! ((pfkey_ident->sadb_ident_exttype == SADB_EXT_IDENTITY_SRC) || + (pfkey_ident->sadb_ident_exttype == SADB_EXT_IDENTITY_DST))) { + ERROR( + "pfkey_key_parse: " + "expecting extension type IDENTITY_SRC or IDENTITY_DST, got %d.\n", + pfkey_ident->sadb_ident_exttype); + SENDERR(EINVAL); + } + +errlab: + return error; +} + +DEBUG_NO_STATIC int +pfkey_sens_parse(struct sadb_ext *pfkey_ext) +{ + int error = 0; + struct sadb_sens *pfkey_sens = (struct sadb_sens *)pfkey_ext; + + /* sanity checks... */ + if(pfkey_sens->sadb_sens_len < sizeof(struct sadb_sens) / IPSEC_PFKEYv2_ALIGN) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_sens_parse: " + "size wrong ext_len=%d, key_ext_len=%d.\n", + pfkey_sens->sadb_sens_len, + (int)sizeof(struct sadb_sens)); + SENDERR(EINVAL); + } + + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_sens_parse: " + "Sorry, I can't parse exttype=%d yet.\n", + pfkey_ext->sadb_ext_type); +#if 0 + SENDERR(EINVAL); /* don't process these yet */ +#endif + +errlab: + return error; +} + +DEBUG_NO_STATIC int +pfkey_prop_parse(struct sadb_ext *pfkey_ext) +{ + int error = 0; + int i, num_comb; + struct sadb_prop *pfkey_prop = (struct sadb_prop *)pfkey_ext; + struct sadb_comb *pfkey_comb = (struct sadb_comb *)((char*)pfkey_ext + sizeof(struct sadb_prop)); + + /* sanity checks... */ + if((pfkey_prop->sadb_prop_len < sizeof(struct sadb_prop) / IPSEC_PFKEYv2_ALIGN) || + (((pfkey_prop->sadb_prop_len * IPSEC_PFKEYv2_ALIGN) - sizeof(struct sadb_prop)) % sizeof(struct sadb_comb))) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_prop_parse: " + "size wrong ext_len=%d, prop_ext_len=%d comb_ext_len=%d.\n", + pfkey_prop->sadb_prop_len, + (int)sizeof(struct sadb_prop), + (int)sizeof(struct sadb_comb)); + SENDERR(EINVAL); + } + + if(pfkey_prop->sadb_prop_replay > 64) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_prop_parse: " + "replay window size: %d -- must be 0 <= size <= 64\n", + pfkey_prop->sadb_prop_replay); + SENDERR(EINVAL); + } + + for(i=0; i<3; i++) { + if(pfkey_prop->sadb_prop_reserved[i]) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_prop_parse: " + "res[%d]=%d, must be zero.\n", + i, pfkey_prop->sadb_prop_reserved[i]); + SENDERR(EINVAL); + } + } + + num_comb = ((pfkey_prop->sadb_prop_len * IPSEC_PFKEYv2_ALIGN) - sizeof(struct sadb_prop)) / sizeof(struct sadb_comb); + + for(i = 0; i < num_comb; i++) { + if(pfkey_comb->sadb_comb_auth > SADB_AALG_MAX) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_prop_parse: " + "pfkey_comb[%d]->sadb_comb_auth=%d > SADB_AALG_MAX=%d.\n", + i, + pfkey_comb->sadb_comb_auth, + SADB_AALG_MAX); + SENDERR(EINVAL); + } + + if(pfkey_comb->sadb_comb_auth) { + if(!pfkey_comb->sadb_comb_auth_minbits) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_prop_parse: " + "pfkey_comb[%d]->sadb_comb_auth_minbits=0, fatal.\n", + i); + SENDERR(EINVAL); + } + if(!pfkey_comb->sadb_comb_auth_maxbits) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_prop_parse: " + "pfkey_comb[%d]->sadb_comb_auth_maxbits=0, fatal.\n", + i); + SENDERR(EINVAL); + } + if(pfkey_comb->sadb_comb_auth_minbits > pfkey_comb->sadb_comb_auth_maxbits) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_prop_parse: " + "pfkey_comb[%d]->sadb_comb_auth_minbits=%d > maxbits=%d, fatal.\n", + i, + pfkey_comb->sadb_comb_auth_minbits, + pfkey_comb->sadb_comb_auth_maxbits); + SENDERR(EINVAL); + } + } else { + if(pfkey_comb->sadb_comb_auth_minbits) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_prop_parse: " + "pfkey_comb[%d]->sadb_comb_auth_minbits=%d != 0, fatal.\n", + i, + pfkey_comb->sadb_comb_auth_minbits); + SENDERR(EINVAL); + } + if(pfkey_comb->sadb_comb_auth_maxbits) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_prop_parse: " + "pfkey_comb[%d]->sadb_comb_auth_maxbits=%d != 0, fatal.\n", + i, + pfkey_comb->sadb_comb_auth_maxbits); + SENDERR(EINVAL); + } + } + +#if SADB_EALG_MAX < 255 + if(pfkey_comb->sadb_comb_encrypt > SADB_EALG_MAX) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_comb_parse: " + "pfkey_comb[%d]->sadb_comb_encrypt=%d > SADB_EALG_MAX=%d.\n", + i, + pfkey_comb->sadb_comb_encrypt, + SADB_EALG_MAX); + SENDERR(EINVAL); + } +#endif + + if(pfkey_comb->sadb_comb_encrypt) { + if(!pfkey_comb->sadb_comb_encrypt_minbits) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_prop_parse: " + "pfkey_comb[%d]->sadb_comb_encrypt_minbits=0, fatal.\n", + i); + SENDERR(EINVAL); + } + if(!pfkey_comb->sadb_comb_encrypt_maxbits) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_prop_parse: " + "pfkey_comb[%d]->sadb_comb_encrypt_maxbits=0, fatal.\n", + i); + SENDERR(EINVAL); + } + if(pfkey_comb->sadb_comb_encrypt_minbits > pfkey_comb->sadb_comb_encrypt_maxbits) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_prop_parse: " + "pfkey_comb[%d]->sadb_comb_encrypt_minbits=%d > maxbits=%d, fatal.\n", + i, + pfkey_comb->sadb_comb_encrypt_minbits, + pfkey_comb->sadb_comb_encrypt_maxbits); + SENDERR(EINVAL); + } + } else { + if(pfkey_comb->sadb_comb_encrypt_minbits) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_prop_parse: " + "pfkey_comb[%d]->sadb_comb_encrypt_minbits=%d != 0, fatal.\n", + i, + pfkey_comb->sadb_comb_encrypt_minbits); + SENDERR(EINVAL); + } + if(pfkey_comb->sadb_comb_encrypt_maxbits) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_prop_parse: " + "pfkey_comb[%d]->sadb_comb_encrypt_maxbits=%d != 0, fatal.\n", + i, + pfkey_comb->sadb_comb_encrypt_maxbits); + SENDERR(EINVAL); + } + } + + /* XXX do sanity check on flags */ + + if(pfkey_comb->sadb_comb_hard_allocations && pfkey_comb->sadb_comb_soft_allocations > pfkey_comb->sadb_comb_hard_allocations) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_prop_parse: " + "pfkey_comb[%d]->sadb_comb_soft_allocations=%d > hard_allocations=%d, fatal.\n", + i, + pfkey_comb->sadb_comb_soft_allocations, + pfkey_comb->sadb_comb_hard_allocations); + SENDERR(EINVAL); + } + + if(pfkey_comb->sadb_comb_hard_bytes && pfkey_comb->sadb_comb_soft_bytes > pfkey_comb->sadb_comb_hard_bytes) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_prop_parse: " + "pfkey_comb[%d]->sadb_comb_soft_bytes=%Ld > hard_bytes=%Ld, fatal.\n", + i, + (unsigned long long int)pfkey_comb->sadb_comb_soft_bytes, + (unsigned long long int)pfkey_comb->sadb_comb_hard_bytes); + SENDERR(EINVAL); + } + + if(pfkey_comb->sadb_comb_hard_addtime && pfkey_comb->sadb_comb_soft_addtime > pfkey_comb->sadb_comb_hard_addtime) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_prop_parse: " + "pfkey_comb[%d]->sadb_comb_soft_addtime=%Ld > hard_addtime=%Ld, fatal.\n", + i, + (unsigned long long int)pfkey_comb->sadb_comb_soft_addtime, + (unsigned long long int)pfkey_comb->sadb_comb_hard_addtime); + SENDERR(EINVAL); + } + + if(pfkey_comb->sadb_comb_hard_usetime && pfkey_comb->sadb_comb_soft_usetime > pfkey_comb->sadb_comb_hard_usetime) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_prop_parse: " + "pfkey_comb[%d]->sadb_comb_soft_usetime=%Ld > hard_usetime=%Ld, fatal.\n", + i, + (unsigned long long int)pfkey_comb->sadb_comb_soft_usetime, + (unsigned long long int)pfkey_comb->sadb_comb_hard_usetime); + SENDERR(EINVAL); + } + + if(pfkey_comb->sadb_x_comb_hard_packets && pfkey_comb->sadb_x_comb_soft_packets > pfkey_comb->sadb_x_comb_hard_packets) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_prop_parse: " + "pfkey_comb[%d]->sadb_x_comb_soft_packets=%d > hard_packets=%d, fatal.\n", + i, + pfkey_comb->sadb_x_comb_soft_packets, + pfkey_comb->sadb_x_comb_hard_packets); + SENDERR(EINVAL); + } + + if(pfkey_comb->sadb_comb_reserved) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_prop_parse: " + "comb[%d].res=%d, must be zero.\n", + i, + pfkey_comb->sadb_comb_reserved); + SENDERR(EINVAL); + } + pfkey_comb++; + } + +errlab: + return error; +} + +DEBUG_NO_STATIC int +pfkey_supported_parse(struct sadb_ext *pfkey_ext) +{ + int error = 0; + unsigned int i, num_alg; + struct sadb_supported *pfkey_supported = (struct sadb_supported *)pfkey_ext; + struct sadb_alg *pfkey_alg = (struct sadb_alg*)((char*)pfkey_ext + sizeof(struct sadb_supported)); + + /* sanity checks... */ + if((pfkey_supported->sadb_supported_len < + sizeof(struct sadb_supported) / IPSEC_PFKEYv2_ALIGN) || + (((pfkey_supported->sadb_supported_len * IPSEC_PFKEYv2_ALIGN) - + sizeof(struct sadb_supported)) % sizeof(struct sadb_alg))) { + + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_supported_parse: " + "size wrong ext_len=%d, supported_ext_len=%d alg_ext_len=%d.\n", + pfkey_supported->sadb_supported_len, + (int)sizeof(struct sadb_supported), + (int)sizeof(struct sadb_alg)); + SENDERR(EINVAL); + } + + if(pfkey_supported->sadb_supported_reserved) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_supported_parse: " + "res=%d, must be zero.\n", + pfkey_supported->sadb_supported_reserved); + SENDERR(EINVAL); + } + + num_alg = ((pfkey_supported->sadb_supported_len * IPSEC_PFKEYv2_ALIGN) - sizeof(struct sadb_supported)) / sizeof(struct sadb_alg); + + for(i = 0; i < num_alg; i++) { + /* process algo description */ + if(pfkey_alg->sadb_alg_reserved) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_supported_parse: " + "alg[%d], id=%d, ivlen=%d, minbits=%d, maxbits=%d, res=%d, must be zero.\n", + i, + pfkey_alg->sadb_alg_id, + pfkey_alg->sadb_alg_ivlen, + pfkey_alg->sadb_alg_minbits, + pfkey_alg->sadb_alg_maxbits, + pfkey_alg->sadb_alg_reserved); + SENDERR(EINVAL); + } + + /* XXX can alg_id auth/enc be determined from info given? + Yes, but OpenBSD's method does not iteroperate with rfc2367. + rgb, 2000-04-06 */ + + switch(pfkey_supported->sadb_supported_exttype) { + case SADB_EXT_SUPPORTED_AUTH: + if(pfkey_alg->sadb_alg_id > SADB_AALG_MAX) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_supported_parse: " + "alg[%d], alg_id=%d > SADB_AALG_MAX=%d, fatal.\n", + i, + pfkey_alg->sadb_alg_id, + SADB_AALG_MAX); + SENDERR(EINVAL); + } + break; + case SADB_EXT_SUPPORTED_ENCRYPT: +#if SADB_EALG_MAX < 255 + if(pfkey_alg->sadb_alg_id > SADB_EALG_MAX) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_supported_parse: " + "alg[%d], alg_id=%d > SADB_EALG_MAX=%d, fatal.\n", + i, + pfkey_alg->sadb_alg_id, + SADB_EALG_MAX); + SENDERR(EINVAL); + } +#endif + break; + default: + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_supported_parse: " + "alg[%d], alg_id=%d > SADB_EALG_MAX=%d, fatal.\n", + i, + pfkey_alg->sadb_alg_id, + SADB_EALG_MAX); + SENDERR(EINVAL); + } + pfkey_alg++; + } + + errlab: + return error; +} + +DEBUG_NO_STATIC int +pfkey_spirange_parse(struct sadb_ext *pfkey_ext) +{ + int error = 0; + struct sadb_spirange *pfkey_spirange = (struct sadb_spirange *)pfkey_ext; + + /* sanity checks... */ + if(pfkey_spirange->sadb_spirange_len != + sizeof(struct sadb_spirange) / IPSEC_PFKEYv2_ALIGN) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_spirange_parse: " + "size wrong ext_len=%d, key_ext_len=%d.\n", + pfkey_spirange->sadb_spirange_len, + (int)sizeof(struct sadb_spirange)); + SENDERR(EINVAL); + } + + if(pfkey_spirange->sadb_spirange_reserved) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_spirange_parse: " + "reserved=%d must be set to zero.\n", + pfkey_spirange->sadb_spirange_reserved); + SENDERR(EINVAL); + } + + if(ntohl(pfkey_spirange->sadb_spirange_max) < ntohl(pfkey_spirange->sadb_spirange_min)) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_spirange_parse: " + "minspi=%08x must be < maxspi=%08x.\n", + ntohl(pfkey_spirange->sadb_spirange_min), + ntohl(pfkey_spirange->sadb_spirange_max)); + SENDERR(EINVAL); + } + + if(ntohl(pfkey_spirange->sadb_spirange_min) <= 255) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_spirange_parse: " + "minspi=%08x must be > 255.\n", + ntohl(pfkey_spirange->sadb_spirange_min)); + SENDERR(EEXIST); + } + + DEBUGGING(PF_KEY_DEBUG_PARSE_STRUCT, + "pfkey_spirange_parse: " + "ext_len=%u ext_type=%u(%s) min=%u max=%u res=%u.\n", + pfkey_spirange->sadb_spirange_len, + pfkey_spirange->sadb_spirange_exttype, + pfkey_v2_sadb_ext_string(pfkey_spirange->sadb_spirange_exttype), + pfkey_spirange->sadb_spirange_min, + pfkey_spirange->sadb_spirange_max, + pfkey_spirange->sadb_spirange_reserved); + errlab: + return error; +} + +DEBUG_NO_STATIC int +pfkey_x_kmprivate_parse(struct sadb_ext *pfkey_ext) +{ + int error = 0; + struct sadb_x_kmprivate *pfkey_x_kmprivate = (struct sadb_x_kmprivate *)pfkey_ext; + + /* sanity checks... */ + if(pfkey_x_kmprivate->sadb_x_kmprivate_len < + sizeof(struct sadb_x_kmprivate) / IPSEC_PFKEYv2_ALIGN) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_x_kmprivate_parse: " + "size wrong ext_len=%d, key_ext_len=%d.\n", + pfkey_x_kmprivate->sadb_x_kmprivate_len, + (int)sizeof(struct sadb_x_kmprivate)); + SENDERR(EINVAL); + } + + if(pfkey_x_kmprivate->sadb_x_kmprivate_reserved) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_x_kmprivate_parse: " + "reserved=%d must be set to zero.\n", + pfkey_x_kmprivate->sadb_x_kmprivate_reserved); + SENDERR(EINVAL); + } + + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_x_kmprivate_parse: " + "Sorry, I can't parse exttype=%d yet.\n", + pfkey_ext->sadb_ext_type); + SENDERR(EINVAL); /* don't process these yet */ + +errlab: + return error; +} + +DEBUG_NO_STATIC int +pfkey_x_satype_parse(struct sadb_ext *pfkey_ext) +{ + int error = 0; + int i; + struct sadb_x_satype *pfkey_x_satype = (struct sadb_x_satype *)pfkey_ext; + + DEBUGGING(PF_KEY_DEBUG_PARSE_FLOW, + "pfkey_x_satype_parse: enter\n"); + /* sanity checks... */ + if(pfkey_x_satype->sadb_x_satype_len != + sizeof(struct sadb_x_satype) / IPSEC_PFKEYv2_ALIGN) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_x_satype_parse: " + "size wrong ext_len=%d, key_ext_len=%d.\n", + pfkey_x_satype->sadb_x_satype_len, + (int)sizeof(struct sadb_x_satype)); + SENDERR(EINVAL); + } + + if(!pfkey_x_satype->sadb_x_satype_satype) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_x_satype_parse: " + "satype is zero, must be non-zero.\n"); + SENDERR(EINVAL); + } + + if(pfkey_x_satype->sadb_x_satype_satype > SADB_SATYPE_MAX) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_x_satype_parse: " + "satype %d > max %d, invalid.\n", + pfkey_x_satype->sadb_x_satype_satype, SADB_SATYPE_MAX); + SENDERR(EINVAL); + } + + if(!(satype2proto(pfkey_x_satype->sadb_x_satype_satype))) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_x_satype_parse: " + "proto lookup from satype=%d failed.\n", + pfkey_x_satype->sadb_x_satype_satype); + SENDERR(EINVAL); + } + + for(i = 0; i < 3; i++) { + if(pfkey_x_satype->sadb_x_satype_reserved[i]) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_x_satype_parse: " + "reserved[%d]=%d must be set to zero.\n", + i, pfkey_x_satype->sadb_x_satype_reserved[i]); + SENDERR(EINVAL); + } + } + + DEBUGGING(PF_KEY_DEBUG_PARSE_STRUCT, + "pfkey_x_satype_parse: " + "len=%u ext=%u(%s) satype=%u(%s) res=%u,%u,%u.\n", + pfkey_x_satype->sadb_x_satype_len, + pfkey_x_satype->sadb_x_satype_exttype, + pfkey_v2_sadb_ext_string(pfkey_x_satype->sadb_x_satype_exttype), + pfkey_x_satype->sadb_x_satype_satype, + satype2name(pfkey_x_satype->sadb_x_satype_satype), + pfkey_x_satype->sadb_x_satype_reserved[0], + pfkey_x_satype->sadb_x_satype_reserved[1], + pfkey_x_satype->sadb_x_satype_reserved[2]); +errlab: + return error; +} + +DEBUG_NO_STATIC int +pfkey_x_ext_debug_parse(struct sadb_ext *pfkey_ext) +{ + int error = 0; + int i; + struct sadb_x_debug *pfkey_x_debug = (struct sadb_x_debug *)pfkey_ext; + + DEBUGGING(PF_KEY_DEBUG_PARSE_FLOW, + "pfkey_x_debug_parse: enter\n"); + /* sanity checks... */ + if(pfkey_x_debug->sadb_x_debug_len != + sizeof(struct sadb_x_debug) / IPSEC_PFKEYv2_ALIGN) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_x_debug_parse: " + "size wrong ext_len=%d, key_ext_len=%d.\n", + pfkey_x_debug->sadb_x_debug_len, + (int)sizeof(struct sadb_x_debug)); + SENDERR(EINVAL); + } + + for(i = 0; i < 4; i++) { + if(pfkey_x_debug->sadb_x_debug_reserved[i]) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_x_debug_parse: " + "reserved[%d]=%d must be set to zero.\n", + i, pfkey_x_debug->sadb_x_debug_reserved[i]); + SENDERR(EINVAL); + } + } + +errlab: + return error; +} + +DEBUG_NO_STATIC int +pfkey_x_ext_protocol_parse(struct sadb_ext *pfkey_ext) +{ + int error = 0; + struct sadb_protocol *p = (struct sadb_protocol *)pfkey_ext; + + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, "pfkey_x_protocol_parse:\n"); + /* sanity checks... */ + + if (p->sadb_protocol_len != sizeof(*p)/IPSEC_PFKEYv2_ALIGN) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_x_protocol_parse: size wrong ext_len=%d, key_ext_len=%d.\n", + p->sadb_protocol_len, (int)sizeof(*p)); + SENDERR(EINVAL); + } + + if (p->sadb_protocol_reserved2 != 0) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_protocol_parse: res=%d, must be zero.\n", + p->sadb_protocol_reserved2); + SENDERR(EINVAL); + } + + errlab: + return error; +} + +#ifdef NAT_TRAVERSAL +DEBUG_NO_STATIC int +pfkey_x_ext_nat_t_type_parse(struct sadb_ext *pfkey_ext) +{ + return 0; +} +DEBUG_NO_STATIC int +pfkey_x_ext_nat_t_port_parse(struct sadb_ext *pfkey_ext) +{ + return 0; +} +#endif + +#define DEFINEPARSER(NAME) static struct pf_key_ext_parsers_def NAME##_def={NAME, #NAME}; + +DEFINEPARSER(pfkey_sa_parse); +DEFINEPARSER(pfkey_lifetime_parse); +DEFINEPARSER(pfkey_address_parse); +DEFINEPARSER(pfkey_key_parse); +DEFINEPARSER(pfkey_ident_parse); +DEFINEPARSER(pfkey_sens_parse); +DEFINEPARSER(pfkey_prop_parse); +DEFINEPARSER(pfkey_supported_parse); +DEFINEPARSER(pfkey_spirange_parse); +DEFINEPARSER(pfkey_x_kmprivate_parse); +DEFINEPARSER(pfkey_x_satype_parse); +DEFINEPARSER(pfkey_x_ext_debug_parse); +DEFINEPARSER(pfkey_x_ext_protocol_parse); +#ifdef NAT_TRAVERSAL +DEFINEPARSER(pfkey_x_ext_nat_t_type_parse); +DEFINEPARSER(pfkey_x_ext_nat_t_port_parse); +#endif + +struct pf_key_ext_parsers_def *ext_default_parsers[]= +{ + NULL, /* pfkey_msg_parse, */ + &pfkey_sa_parse_def, + &pfkey_lifetime_parse_def, + &pfkey_lifetime_parse_def, + &pfkey_lifetime_parse_def, + &pfkey_address_parse_def, + &pfkey_address_parse_def, + &pfkey_address_parse_def, + &pfkey_key_parse_def, + &pfkey_key_parse_def, + &pfkey_ident_parse_def, + &pfkey_ident_parse_def, + &pfkey_sens_parse_def, + &pfkey_prop_parse_def, + &pfkey_supported_parse_def, + &pfkey_supported_parse_def, + &pfkey_spirange_parse_def, + &pfkey_x_kmprivate_parse_def, + &pfkey_x_satype_parse_def, + &pfkey_sa_parse_def, + &pfkey_address_parse_def, + &pfkey_address_parse_def, + &pfkey_address_parse_def, + &pfkey_address_parse_def, + &pfkey_address_parse_def, + &pfkey_x_ext_debug_parse_def, + &pfkey_x_ext_protocol_parse_def +#ifdef NAT_TRAVERSAL + , + &pfkey_x_ext_nat_t_type_parse_def, + &pfkey_x_ext_nat_t_port_parse_def, + &pfkey_x_ext_nat_t_port_parse_def, + &pfkey_address_parse_def +#endif +}; + +int +pfkey_msg_parse(struct sadb_msg *pfkey_msg, + struct pf_key_ext_parsers_def *ext_parsers[], + struct sadb_ext *extensions[], + int dir) +{ + int error = 0; + int remain; + struct sadb_ext *pfkey_ext; + int extensions_seen = 0; + + DEBUGGING(PF_KEY_DEBUG_PARSE_STRUCT, + "pfkey_msg_parse: " + "parsing message ver=%d, type=%d(%s), errno=%d, satype=%d(%s), len=%d, res=%d, seq=%d, pid=%d.\n", + pfkey_msg->sadb_msg_version, + pfkey_msg->sadb_msg_type, + pfkey_v2_sadb_type_string(pfkey_msg->sadb_msg_type), + pfkey_msg->sadb_msg_errno, + pfkey_msg->sadb_msg_satype, + satype2name(pfkey_msg->sadb_msg_satype), + pfkey_msg->sadb_msg_len, + pfkey_msg->sadb_msg_reserved, + pfkey_msg->sadb_msg_seq, + pfkey_msg->sadb_msg_pid); + + if(ext_parsers == NULL) ext_parsers = ext_default_parsers; + + pfkey_extensions_init(extensions); + + remain = pfkey_msg->sadb_msg_len; + remain -= sizeof(struct sadb_msg) / IPSEC_PFKEYv2_ALIGN; + + pfkey_ext = (struct sadb_ext*)((char*)pfkey_msg + + sizeof(struct sadb_msg)); + + extensions[0] = (struct sadb_ext *) pfkey_msg; + + + if(pfkey_msg->sadb_msg_version != PF_KEY_V2) { + ERROR("pfkey_msg_parse: " + "not PF_KEY_V2 msg, found %d, should be %d.\n", + pfkey_msg->sadb_msg_version, + PF_KEY_V2); + SENDERR(EINVAL); + } + + if(!pfkey_msg->sadb_msg_type) { + ERROR("pfkey_msg_parse: " + "msg type not set, must be non-zero..\n"); + SENDERR(EINVAL); + } + + if(pfkey_msg->sadb_msg_type > SADB_MAX) { + ERROR("pfkey_msg_parse: " + "msg type=%d > max=%d.\n", + pfkey_msg->sadb_msg_type, + SADB_MAX); + SENDERR(EINVAL); + } + + switch(pfkey_msg->sadb_msg_type) { + case SADB_GETSPI: + case SADB_UPDATE: + case SADB_ADD: + case SADB_DELETE: + case SADB_GET: + case SADB_X_GRPSA: + case SADB_X_ADDFLOW: + if(!satype2proto(pfkey_msg->sadb_msg_satype)) { + ERROR("pfkey_msg_parse: " + "satype %d conversion to proto failed for msg_type %d (%s).\n", + pfkey_msg->sadb_msg_satype, + pfkey_msg->sadb_msg_type, + pfkey_v2_sadb_type_string(pfkey_msg->sadb_msg_type)); + SENDERR(EINVAL); + } else { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_msg_parse: " + "satype %d(%s) conversion to proto gives %d for msg_type %d(%s).\n", + pfkey_msg->sadb_msg_satype, + satype2name(pfkey_msg->sadb_msg_satype), + satype2proto(pfkey_msg->sadb_msg_satype), + pfkey_msg->sadb_msg_type, + pfkey_v2_sadb_type_string(pfkey_msg->sadb_msg_type)); + } + case SADB_ACQUIRE: + case SADB_REGISTER: + case SADB_EXPIRE: + if(!pfkey_msg->sadb_msg_satype) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_msg_parse: " + "satype is zero, must be non-zero for msg_type %d(%s).\n", + pfkey_msg->sadb_msg_type, + pfkey_v2_sadb_type_string(pfkey_msg->sadb_msg_type)); + SENDERR(EINVAL); + } + default: + break; + } + + /* errno must not be set in downward messages */ + /* this is not entirely true... a response to an ACQUIRE could return an error */ + if((dir == EXT_BITS_IN) && (pfkey_msg->sadb_msg_type != SADB_ACQUIRE) && pfkey_msg->sadb_msg_errno) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_msg_parse: " + "errno set to %d.\n", + pfkey_msg->sadb_msg_errno); + SENDERR(EINVAL); + } + + DEBUGGING(PF_KEY_DEBUG_PARSE_FLOW, + "pfkey_msg_parse: " + "remain=%d\n", + remain + ); + + DEBUGGING(PF_KEY_DEBUG_PARSE_FLOW, + "pfkey_msg_parse: " + "extensions permitted=%08x, required=%08x.\n", + extensions_bitmaps[dir][EXT_BITS_PERM][pfkey_msg->sadb_msg_type], + extensions_bitmaps[dir][EXT_BITS_REQ][pfkey_msg->sadb_msg_type]); + + extensions_seen = 1; + + while( (remain * IPSEC_PFKEYv2_ALIGN) >= sizeof(struct sadb_ext) ) { + /* Is there enough message left to support another extension header? */ + if(remain < pfkey_ext->sadb_ext_len) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_msg_parse: " + "remain %d less than ext len %d.\n", + remain, pfkey_ext->sadb_ext_len); + SENDERR(EINVAL); + } + + DEBUGGING(PF_KEY_DEBUG_PARSE_FLOW, + "pfkey_msg_parse: " + "parsing ext type=%d(%s) remain=%d.\n", + pfkey_ext->sadb_ext_type, + pfkey_v2_sadb_ext_string(pfkey_ext->sadb_ext_type), + remain); + + /* Is the extension header type valid? */ + if((pfkey_ext->sadb_ext_type > SADB_EXT_MAX) || (!pfkey_ext->sadb_ext_type)) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_msg_parse: " + "ext type %d(%s) invalid, SADB_EXT_MAX=%d.\n", + pfkey_ext->sadb_ext_type, + pfkey_v2_sadb_ext_string(pfkey_ext->sadb_ext_type), + SADB_EXT_MAX); + SENDERR(EINVAL); + } + + /* Have we already seen this type of extension? */ + if((extensions_seen & ( 1 << pfkey_ext->sadb_ext_type )) != 0) + { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_msg_parse: " + "ext type %d(%s) already seen.\n", + pfkey_ext->sadb_ext_type, + pfkey_v2_sadb_ext_string(pfkey_ext->sadb_ext_type)); + SENDERR(EINVAL); + } + + /* Do I even know about this type of extension? */ + if(ext_parsers[pfkey_ext->sadb_ext_type]==NULL) { + ERROR("pfkey_msg_parse: " + "ext type %d(%s) unknown, ignoring.\n", + pfkey_ext->sadb_ext_type, + pfkey_v2_sadb_ext_string(pfkey_ext->sadb_ext_type)); + goto next_ext; + } + + /* Is this type of extension permitted for this type of message? */ + if(!(extensions_bitmaps[dir][EXT_BITS_PERM][pfkey_msg->sadb_msg_type] & + 1<sadb_ext_type)) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_msg_parse: " + "ext type %d(%s) not permitted, exts_perm_in=%08x, 1<sadb_ext_type, + pfkey_v2_sadb_ext_string(pfkey_ext->sadb_ext_type), + extensions_bitmaps[dir][EXT_BITS_PERM][pfkey_msg->sadb_msg_type], + 1<sadb_ext_type); + SENDERR(EINVAL); + } + + DEBUGGING(PF_KEY_DEBUG_PARSE_STRUCT, + "pfkey_msg_parse: " + "remain=%d ext_type=%d(%s) ext_len=%d parsing ext 0p%p with parser %s.\n", + remain, + pfkey_ext->sadb_ext_type, + pfkey_v2_sadb_ext_string(pfkey_ext->sadb_ext_type), + pfkey_ext->sadb_ext_len, + pfkey_ext, + ext_parsers[pfkey_ext->sadb_ext_type]->parser_name); + + /* Parse the extension */ + if((error = + (*ext_parsers[pfkey_ext->sadb_ext_type]->parser)(pfkey_ext))) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_msg_parse: " + "extension parsing for type %d(%s) failed with error %d.\n", + pfkey_ext->sadb_ext_type, + pfkey_v2_sadb_ext_string(pfkey_ext->sadb_ext_type), + error); + SENDERR(-error); + } + DEBUGGING(PF_KEY_DEBUG_PARSE_FLOW, + "pfkey_msg_parse: " + "Extension %d(%s) parsed.\n", + pfkey_ext->sadb_ext_type, + pfkey_v2_sadb_ext_string(pfkey_ext->sadb_ext_type)); + + /* Mark that we have seen this extension and remember the header location */ + extensions_seen |= ( 1 << pfkey_ext->sadb_ext_type ); + extensions[pfkey_ext->sadb_ext_type] = pfkey_ext; + + next_ext: + /* Calculate how much message remains */ + remain -= pfkey_ext->sadb_ext_len; + + if(!remain) { + break; + } + /* Find the next extension header */ + pfkey_ext = (struct sadb_ext*)((char*)pfkey_ext + + pfkey_ext->sadb_ext_len * IPSEC_PFKEYv2_ALIGN); + } + + if(remain) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_msg_parse: " + "unexpected remainder of %d.\n", + remain); + /* why is there still something remaining? */ + SENDERR(EINVAL); + } + + /* check required extensions */ + DEBUGGING(PF_KEY_DEBUG_PARSE_STRUCT, + "pfkey_msg_parse: " + "extensions permitted=%08x, seen=%08x, required=%08x.\n", + extensions_bitmaps[dir][EXT_BITS_PERM][pfkey_msg->sadb_msg_type], + extensions_seen, + extensions_bitmaps[dir][EXT_BITS_REQ][pfkey_msg->sadb_msg_type]); + + /* don't check further if it is an error return message since it + may not have a body */ + if(pfkey_msg->sadb_msg_errno) { + SENDERR(-error); + } + + if((extensions_seen & + extensions_bitmaps[dir][EXT_BITS_REQ][pfkey_msg->sadb_msg_type]) != + extensions_bitmaps[dir][EXT_BITS_REQ][pfkey_msg->sadb_msg_type]) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_msg_parse: " + "required extensions missing:%08x.\n", + extensions_bitmaps[dir][EXT_BITS_REQ][pfkey_msg->sadb_msg_type] - + (extensions_seen & + extensions_bitmaps[dir][EXT_BITS_REQ][pfkey_msg->sadb_msg_type])); + SENDERR(EINVAL); + } + + if((dir == EXT_BITS_IN) && (pfkey_msg->sadb_msg_type == SADB_X_DELFLOW) + && ((extensions_seen & SADB_X_EXT_ADDRESS_DELFLOW) + != SADB_X_EXT_ADDRESS_DELFLOW) + && (((extensions_seen & (1<sadb_sa_flags + & SADB_X_SAFLAGS_CLEARFLOW) + != SADB_X_SAFLAGS_CLEARFLOW))) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_msg_parse: " + "required SADB_X_DELFLOW extensions missing: either %08x must be present or %08x must be present with SADB_X_SAFLAGS_CLEARFLOW set.\n", + SADB_X_EXT_ADDRESS_DELFLOW + - (extensions_seen & SADB_X_EXT_ADDRESS_DELFLOW), + (1<sadb_msg_type) { + case SADB_ADD: + case SADB_UPDATE: + /* check maturity */ + if(((struct sadb_sa*)extensions[SADB_EXT_SA])->sadb_sa_state != + SADB_SASTATE_MATURE) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_msg_parse: " + "state=%d for add or update should be MATURE=%d.\n", + ((struct sadb_sa*)extensions[SADB_EXT_SA])->sadb_sa_state, + SADB_SASTATE_MATURE); + SENDERR(EINVAL); + } + + /* check AH and ESP */ + switch(((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_satype) { + case SADB_SATYPE_AH: + if(!(((struct sadb_sa*)extensions[SADB_EXT_SA]) && + ((struct sadb_sa*)extensions[SADB_EXT_SA])->sadb_sa_auth != + SADB_AALG_NONE)) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_msg_parse: " + "auth alg is zero, must be non-zero for AH SAs.\n"); + SENDERR(EINVAL); + } + if(((struct sadb_sa*)(extensions[SADB_EXT_SA]))->sadb_sa_encrypt != + SADB_EALG_NONE) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_msg_parse: " + "AH handed encalg=%d, must be zero.\n", + ((struct sadb_sa*)(extensions[SADB_EXT_SA]))->sadb_sa_encrypt); + SENDERR(EINVAL); + } + break; + case SADB_SATYPE_ESP: + if(!(((struct sadb_sa*)extensions[SADB_EXT_SA]) && + ((struct sadb_sa*)extensions[SADB_EXT_SA])->sadb_sa_encrypt != + SADB_EALG_NONE)) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_msg_parse: " + "encrypt alg=%d is zero, must be non-zero for ESP=%d SAs.\n", + ((struct sadb_sa*)extensions[SADB_EXT_SA])->sadb_sa_encrypt, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_satype); + SENDERR(EINVAL); + } + if((((struct sadb_sa*)(extensions[SADB_EXT_SA]))->sadb_sa_encrypt == + SADB_EALG_NULL) && + (((struct sadb_sa*)(extensions[SADB_EXT_SA]))->sadb_sa_auth == + SADB_AALG_NONE) ) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_msg_parse: " + "ESP handed encNULL+authNONE, illegal combination.\n"); + SENDERR(EINVAL); + } + break; + case SADB_X_SATYPE_COMP: + if(!(((struct sadb_sa*)extensions[SADB_EXT_SA]) && + ((struct sadb_sa*)extensions[SADB_EXT_SA])->sadb_sa_encrypt != + SADB_EALG_NONE)) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_msg_parse: " + "encrypt alg=%d is zero, must be non-zero for COMP=%d SAs.\n", + ((struct sadb_sa*)extensions[SADB_EXT_SA])->sadb_sa_encrypt, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_satype); + SENDERR(EINVAL); + } + if(((struct sadb_sa*)(extensions[SADB_EXT_SA]))->sadb_sa_auth != + SADB_AALG_NONE) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_msg_parse: " + "COMP handed auth=%d, must be zero.\n", + ((struct sadb_sa*)(extensions[SADB_EXT_SA]))->sadb_sa_auth); + SENDERR(EINVAL); + } + break; + default: + break; + } + if(ntohl(((struct sadb_sa*)(extensions[SADB_EXT_SA]))->sadb_sa_spi) <= 255) { + DEBUGGING(PF_KEY_DEBUG_PARSE_PROBLEM, + "pfkey_msg_parse: " + "spi=%08x must be > 255.\n", + ntohl(((struct sadb_sa*)(extensions[SADB_EXT_SA]))->sadb_sa_spi)); + SENDERR(EINVAL); + } + default: + break; + } +errlab: + + return error; +} + +/* + * $Log: pfkey_v2_parse.c,v $ + * Revision 1.65 2005/04/06 17:46:05 mcr + * failure to recognize an extension is considered an error. + * This could be a problem in the future, but we need some kind + * of logging. This should be rate limited, probably. + * + * Revision 1.64 2005/01/26 00:50:35 mcr + * adjustment of confusion of CONFIG_IPSEC_NAT vs CONFIG_KLIPS_NAT, + * and make sure that NAT_TRAVERSAL is set as well to match + * userspace compiles of code. + * + * Revision 1.63 2004/10/28 22:54:10 mcr + * results from valgrind, thanks to: Harald Hoyer + * + * Revision 1.62 2004/10/03 01:26:36 mcr + * fixes for gcc 3.4 compilation. + * + * Revision 1.61 2004/07/10 19:11:18 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.59 2004/04/18 03:03:49 mcr + * renamed common include files from pluto directory. + * + * Revision 1.58 2004/03/08 01:59:08 ken + * freeswan.h -> openswan.h + * + * Revision 1.57 2003/12/10 01:20:19 mcr + * NAT-traversal patches to KLIPS. + * + * Revision 1.56 2003/12/04 23:01:12 mcr + * removed ipsec_netlink.h + * + * Revision 1.55 2003/11/07 01:30:37 ken + * Cast sizeof() to int to keep things 64bit clean + * + * Revision 1.54 2003/10/31 02:27:12 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.53.20.2 2003/10/29 01:11:32 mcr + * added debugging for pfkey library. + * + * Revision 1.53.20.1 2003/09/21 13:59:44 mcr + * pre-liminary X.509 patch - does not yet pass tests. + * + * Revision 1.53 2003/01/30 02:32:09 rgb + * + * Rename SAref table macro names for clarity. + * Convert IPsecSAref_t from signed to unsigned to fix apparent SAref exhaustion bug. + * + * Revision 1.52 2002/12/30 06:53:07 mcr + * deal with short SA structures... #if 0 out for now. Probably + * not quite the right way. + * + * Revision 1.51 2002/12/13 18:16:02 mcr + * restored sa_ref code + * + * Revision 1.50 2002/12/13 18:06:52 mcr + * temporarily removed sadb_x_sa_ref reference for 2.xx + * + * Revision 1.49 2002/10/05 05:02:58 dhr + * + * C labels go on statements + * + * Revision 1.48 2002/09/20 15:40:45 rgb + * Added sadb_x_sa_ref to struct sadb_sa. + * + * Revision 1.47 2002/09/20 05:01:31 rgb + * Fixed usage of pfkey_lib_debug. + * Format for function declaration style consistency. + * Added text labels to elucidate numeric values presented. + * Re-organised debug output to reduce noise in output. + * + * Revision 1.46 2002/07/24 18:44:54 rgb + * Type fiddling to tame ia64 compiler. + * + * Revision 1.45 2002/05/23 07:14:11 rgb + * Cleaned up %p variants to 0p%p for test suite cleanup. + * + * Revision 1.44 2002/04/24 07:55:32 mcr + * #include patches and Makefiles for post-reorg compilation. + * + * Revision 1.43 2002/04/24 07:36:40 mcr + * Moved from ./lib/pfkey_v2_parse.c,v + * + * Revision 1.42 2002/01/29 22:25:36 rgb + * Re-add ipsec_kversion.h to keep MALLOC happy. + * + * Revision 1.41 2002/01/29 01:59:10 mcr + * removal of kversions.h - sources that needed it now use ipsec_param.h. + * updating of IPv6 structures to match latest in6.h version. + * removed dead code from openswan.h that also duplicated kversions.h + * code. + * + * Revision 1.40 2002/01/20 20:34:50 mcr + * added pfkey_v2_sadb_type_string to decode sadb_type to string. + * + * Revision 1.39 2001/11/27 05:29:22 mcr + * pfkey parses are now maintained by a structure + * that includes their name for debug purposes. + * DEBUGGING() macro changed so that it takes a debug + * level so that pf_key() can use this to decode the + * structures without innundanting humans. + * Also uses pfkey_v2_sadb_ext_string() in messages. + * + * Revision 1.38 2001/11/06 19:47:47 rgb + * Added packet parameter to lifetime and comb structures. + * + * Revision 1.37 2001/10/18 04:45:24 rgb + * 2.4.9 kernel deprecates linux/malloc.h in favour of linux/slab.h, + * lib/openswan.h version macros moved to lib/kversions.h. + * Other compiler directive cleanups. + * + * Revision 1.36 2001/06/14 19:35:16 rgb + * Update copyright date. + * + * Revision 1.35 2001/05/03 19:44:51 rgb + * Standardise on SENDERR() macro. + * + * Revision 1.34 2001/03/16 07:41:51 rgb + * Put openswan.h include before pluto includes. + * + * Revision 1.33 2001/02/27 07:13:51 rgb + * Added satype2name() function. + * Added text to default satype_tbl entry. + * Added satype2name() conversions for most satype debug output. + * + * Revision 1.32 2001/02/26 20:01:09 rgb + * Added internal IP protocol 61 for magic SAs. + * Ditch unused sadb_satype2proto[], replaced by satype2proto(). + * Re-formatted debug output (split lines, consistent spacing). + * Removed acquire, register and expire requirements for a known satype. + * Changed message type checking to a switch structure. + * Verify expected NULL auth for IPCOMP. + * Enforced spi > 0x100 requirement, now that pass uses a magic SA for + * appropriate message types. + * + * Revision 1.31 2000/12/01 07:09:00 rgb + * Added ipcomp sanity check to require encalgo is set. + * + * Revision 1.30 2000/11/17 18:10:30 rgb + * Fixed bugs mostly relating to spirange, to treat all spi variables as + * network byte order since this is the way PF_KEYv2 stored spis. + * + * Revision 1.29 2000/10/12 00:02:39 rgb + * Removed 'format, ##' nonsense from debug macros for RH7.0. + * + * Revision 1.28 2000/09/20 16:23:04 rgb + * Remove over-paranoid extension check in the presence of sadb_msg_errno. + * + * Revision 1.27 2000/09/20 04:04:21 rgb + * Changed static functions to DEBUG_NO_STATIC to reveal function names in + * oopsen. + * + * Revision 1.26 2000/09/15 11:37:02 rgb + * Merge in heavily modified Svenning Soerensen's + * IPCOMP zlib deflate code. + * + * Revision 1.25 2000/09/12 22:35:37 rgb + * Restructured to remove unused extensions from CLEARFLOW messages. + * + * Revision 1.24 2000/09/12 18:59:54 rgb + * Added Gerhard's IPv6 support to pfkey parts of libopenswan. + * + * Revision 1.23 2000/09/12 03:27:00 rgb + * Moved DEBUGGING definition to compile kernel with debug off. + * + * Revision 1.22 2000/09/09 06:39:27 rgb + * Restrict pfkey errno check to downward messages only. + * + * Revision 1.21 2000/09/08 19:22:34 rgb + * Enabled pfkey_sens_parse(). + * Added check for errno on downward acquire messages only. + * + * Revision 1.20 2000/09/01 18:48:23 rgb + * Fixed reserved check bug and added debug output in + * pfkey_supported_parse(). + * Fixed debug output label bug in pfkey_ident_parse(). + * + * Revision 1.19 2000/08/27 01:55:26 rgb + * Define OCTETBITS and PFKEYBITS to avoid using 'magic' numbers in code. + * + * Revision 1.18 2000/08/24 17:00:36 rgb + * Ignore unknown extensions instead of failing. + * + * Revision 1.17 2000/06/02 22:54:14 rgb + * Added Gerhard Gessler's struct sockaddr_storage mods for IPv6 support. + * + * Revision 1.16 2000/05/10 19:25:11 rgb + * Fleshed out proposal and supported extensions. + * + * Revision 1.15 2000/01/24 21:15:31 rgb + * Added disabled pluto pfkey lib debug flag. + * Added algo debugging reporting. + * + * Revision 1.14 2000/01/22 23:24:29 rgb + * Added new functions proto2satype() and satype2proto() and lookup + * table satype_tbl. Also added proto2name() since it was easy. + * + * Revision 1.13 2000/01/21 09:43:59 rgb + * Cast ntohl(spi) as (unsigned long int) to shut up compiler. + * + * Revision 1.12 2000/01/21 06:28:19 rgb + * Added address cases for eroute flows. + * Indented compiler directives for readability. + * Added klipsdebug switching capability. + * + * Revision 1.11 1999/12/29 21:14:59 rgb + * Fixed debug text cut and paste typo. + * + * Revision 1.10 1999/12/10 17:45:24 rgb + * Added address debugging. + * + * Revision 1.9 1999/12/09 23:11:42 rgb + * Ditched include since we no longer use memset(). + * Use new pfkey_extensions_init() instead of memset(). + * Added check for SATYPE in pfkey_msg_build(). + * Tidy up comments and debugging comments. + * + * Revision 1.8 1999/12/07 19:55:26 rgb + * Removed unused first argument from extension parsers. + * Removed static pluto debug flag. + * Moved message type and state checking to pfkey_msg_parse(). + * Changed print[fk] type from lx to x to quiet compiler. + * Removed redundant remain check. + * Changed __u* types to uint* to avoid use of asm/types.h and + * sys/types.h in userspace code. + * + * Revision 1.7 1999/12/01 22:20:51 rgb + * Moved pfkey_lib_debug variable into the library. + * Added pfkey version check into header parsing. + * Added check for SATYPE only for those extensions that require a + * non-zero value. + * + * Revision 1.6 1999/11/27 11:58:05 rgb + * Added ipv6 headers. + * Moved sadb_satype2proto protocol lookup table from + * klips/net/ipsec/pfkey_v2_parser.c. + * Enable lifetime_current checking. + * Debugging error messages added. + * Add argument to pfkey_msg_parse() for direction. + * Consolidated the 4 1-d extension bitmap arrays into one 4-d array. + * Add CVS log entry to bottom of file. + * Moved auth and enc alg check to pfkey_msg_parse(). + * Enable accidentally disabled spirange parsing. + * Moved protocol/algorithm checks from klips/net/ipsec/pfkey_v2_parser.c + * + * Local variables: + * c-file-style: "linux" + * End: + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/pfkey_v2_parser.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,3520 @@ +/* + * @(#) RFC2367 PF_KEYv2 Key management API message parser + * Copyright (C) 1999, 2000, 2001 Richard Guy Briggs + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: pfkey_v2_parser.c,v 1.134.2.2 2006/10/06 21:39:26 paul Exp $ + */ + +/* + * Template from klips/net/ipsec/ipsec/ipsec_netlink.c. + */ + +char pfkey_v2_parser_c_version[] = "$Id: pfkey_v2_parser.c,v 1.134.2.2 2006/10/06 21:39:26 paul Exp $"; + +#ifndef AUTOCONF_INCLUDED +#include +#endif +#include +#include /* printk() */ + +#include "openswan/ipsec_param.h" + +#ifdef MALLOC_SLAB +# include /* kmalloc() */ +#else /* MALLOC_SLAB */ +# include /* kmalloc() */ +#endif /* MALLOC_SLAB */ +#include /* error codes */ +#include /* size_t */ +#include /* mark_bh */ + +#include /* struct device, and other headers */ +#include /* eth_type_trans */ +#include /* struct iphdr */ +#include + +#include + +#include + +#ifdef SPINLOCK +# ifdef SPINLOCK_23 +# include /* *lock* */ +# else /* SPINLOCK_23 */ +# include /* *lock* */ +# endif /* SPINLOCK_23 */ +#endif /* SPINLOCK */ + +#include +#include + +#include +#ifdef NETLINK_SOCK +# include +#else +# include +#endif + +#include /* get_random_bytes() */ + +#include "openswan/radij.h" +#include "openswan/ipsec_encap.h" +#include "openswan/ipsec_sa.h" + +#include "openswan/ipsec_radij.h" +#include "openswan/ipsec_xform.h" +#include "openswan/ipsec_ah.h" +#include "openswan/ipsec_esp.h" +#include "openswan/ipsec_tunnel.h" +#include "openswan/ipsec_rcv.h" +#include "openswan/ipcomp.h" + +#include +#include + +#include "openswan/ipsec_proto.h" +#include "openswan/ipsec_alg.h" + +#include "openswan/ipsec_kern24.h" + +#define SENDERR(_x) do { error = -(_x); goto errlab; } while (0) + +struct sklist_t { + struct socket *sk; + struct sklist_t* next; +} pfkey_sklist_head, *pfkey_sklist, *pfkey_sklist_prev; + +__u32 pfkey_msg_seq = 0; + + +#if 0 +#define DUMP_SAID dump_said(&extr->ips->ips_said, __LINE__) +#define DUMP_SAID2 dump_said(&extr.ips->ips_said, __LINE__) +static void dump_said(ip_said *s, int line) +{ + char msa[SATOT_BUF]; + size_t msa_len; + + msa_len = satot(s, 0, msa, sizeof(msa)); + + printk("line: %d msa: %s\n", line, msa); +} +#endif + + +int +pfkey_alloc_eroute(struct eroute** eroute) +{ + int error = 0; + if(*eroute) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_alloc_eroute: " + "eroute struct already allocated\n"); + SENDERR(EEXIST); + } + + if((*eroute = kmalloc(sizeof(**eroute), GFP_ATOMIC) ) == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_alloc_eroute: " + "memory allocation error\n"); + SENDERR(ENOMEM); + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_alloc_eroute: " + "allocating %lu bytes for an eroute at 0p%p\n", + (unsigned long) sizeof(**eroute), *eroute); + + memset((caddr_t)*eroute, 0, sizeof(**eroute)); + (*eroute)->er_eaddr.sen_len = + (*eroute)->er_emask.sen_len = sizeof(struct sockaddr_encap); + (*eroute)->er_eaddr.sen_family = + (*eroute)->er_emask.sen_family = AF_ENCAP; + (*eroute)->er_eaddr.sen_type = SENT_IP4; + (*eroute)->er_emask.sen_type = 255; + (*eroute)->er_pid = 0; + (*eroute)->er_count = 0; + (*eroute)->er_lasttime = jiffies/HZ; + + errlab: + return(error); +} + +DEBUG_NO_STATIC int +pfkey_x_protocol_process(struct sadb_ext *pfkey_ext, + struct pfkey_extracted_data *extr) +{ + int error = 0; + struct sadb_protocol * p = (struct sadb_protocol *)pfkey_ext; + + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_x_protocol_process: %p\n", extr); + + if (extr == 0) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_protocol_process:" + "extr is NULL, fatal\n"); + SENDERR(EINVAL); + } + if (extr->eroute == 0) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_protocol_process:" + "extr->eroute is NULL, fatal\n"); + SENDERR(EINVAL); + } + + extr->eroute->er_eaddr.sen_proto = p->sadb_protocol_proto; + extr->eroute->er_emask.sen_proto = p->sadb_protocol_proto ? ~0:0; + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_protocol_process: protocol = %d.\n", + p->sadb_protocol_proto); + errlab: + return error; +} + +DEBUG_NO_STATIC int +pfkey_ipsec_sa_init(struct ipsec_sa *ipsp) +{ + + return ipsec_sa_init(ipsp); +} + +int +pfkey_safe_build(int error, struct sadb_ext *extensions[SADB_MAX+1]) +{ + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_safe_build: " + "error=%d\n", + error); + if (!error) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_safe_build:" + "success.\n"); + return 1; + } else { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_safe_build:" + "caught error %d\n", + error); + pfkey_extensions_free(extensions); + return 0; + } +} + + +DEBUG_NO_STATIC int +pfkey_getspi_parse(struct sock *sk, struct sadb_ext **extensions, struct pfkey_extracted_data* extr) +{ + int error = 0; + ipsec_spi_t minspi = htonl(256), maxspi = htonl(-1L); + int found_avail = 0; + struct ipsec_sa *ipsq; + char sa[SATOT_BUF]; + size_t sa_len; + struct sadb_ext *extensions_reply[SADB_EXT_MAX+1]; + struct sadb_msg *pfkey_reply = NULL; + struct socket_list *pfkey_socketsp; + uint8_t satype = ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_satype; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_getspi_parse: .\n"); + + pfkey_extensions_init(extensions_reply); + + if(extr == NULL || extr->ips == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_getspi_parse: " + "error, extr or extr->ipsec_sa pointer NULL\n"); + SENDERR(EINVAL); + } + + if(extensions[SADB_EXT_SPIRANGE]) { + minspi = ((struct sadb_spirange *)extensions[SADB_EXT_SPIRANGE])->sadb_spirange_min; + maxspi = ((struct sadb_spirange *)extensions[SADB_EXT_SPIRANGE])->sadb_spirange_max; + } + + if(maxspi == minspi) { + extr->ips->ips_said.spi = maxspi; + ipsq = ipsec_sa_getbyid(&(extr->ips->ips_said)); + if(ipsq != NULL) { + sa_len = satot(&extr->ips->ips_said, 0, sa, sizeof(sa)); + ipsec_sa_put(ipsq); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_getspi_parse: " + "EMT_GETSPI found an old ipsec_sa for SA: %s, delete it first.\n", + sa_len ? sa : " (error)"); + SENDERR(EEXIST); + } else { + found_avail = 1; + } + } else { + int i = 0; + __u32 rand_val; + __u32 spi_diff; + while( ( i < (spi_diff = (ntohl(maxspi) - ntohl(minspi)))) && !found_avail ) { + prng_bytes(&ipsec_prng, (char *) &(rand_val), + ( (spi_diff < (2^8)) ? 1 : + ( (spi_diff < (2^16)) ? 2 : + ( (spi_diff < (2^24)) ? 3 : + 4 ) ) ) ); + extr->ips->ips_said.spi = htonl(ntohl(minspi) + + (rand_val % + (spi_diff + 1))); + i++; + ipsq = ipsec_sa_getbyid(&(extr->ips->ips_said)); + if(ipsq == NULL) { + found_avail = 1; + } else { + ipsec_sa_put(ipsq); + } + } + } + + sa_len = satot(&extr->ips->ips_said, 0, sa, sizeof(sa)); + + if (!found_avail) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_getspi_parse: " + "found an old ipsec_sa for SA: %s, delete it first.\n", + sa_len ? sa : " (error)"); + SENDERR(EEXIST); + } + + if(inet_addr_type((unsigned long)extr->ips->ips_said.dst.u.v4.sin_addr.s_addr) == RTN_LOCAL) { + extr->ips->ips_flags |= EMT_INBOUND; + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_getspi_parse: " + "existing ipsec_sa not found (this is good) for SA: %s, %s-bound, allocating.\n", + sa_len ? sa : " (error)", + extr->ips->ips_flags & EMT_INBOUND ? "in" : "out"); + + /* XXX extr->ips->ips_rcvif = &(enc_softc[em->em_if].enc_if);*/ + extr->ips->ips_rcvif = NULL; + extr->ips->ips_life.ipl_addtime.ipl_count = jiffies/HZ; + + extr->ips->ips_state = SADB_SASTATE_LARVAL; + + if(!extr->ips->ips_life.ipl_allocations.ipl_count) { + extr->ips->ips_life.ipl_allocations.ipl_count += 1; + } + + if(!(pfkey_safe_build(error = pfkey_msg_hdr_build(&extensions_reply[0], + SADB_GETSPI, + satype, + 0, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_seq, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_pid), + extensions_reply) + && pfkey_safe_build(error = pfkey_sa_ref_build(&extensions_reply[SADB_EXT_SA], + SADB_EXT_SA, + extr->ips->ips_said.spi, + 0, + SADB_SASTATE_LARVAL, + 0, + 0, + 0, + extr->ips->ips_ref), + extensions_reply) + && pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_EXT_ADDRESS_SRC], + SADB_EXT_ADDRESS_SRC, + 0, /*extr->ips->ips_said.proto,*/ + 0, + extr->ips->ips_addr_s), + extensions_reply) + && pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_EXT_ADDRESS_DST], + SADB_EXT_ADDRESS_DST, + 0, /*extr->ips->ips_said.proto,*/ + 0, + extr->ips->ips_addr_d), + extensions_reply) )) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_getspi_parse: " + "failed to build the getspi reply message extensions\n"); + goto errlab; + } + + if((error = pfkey_msg_build(&pfkey_reply, extensions_reply, EXT_BITS_OUT))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_getspi_parse: " + "failed to build the getspi reply message\n"); + SENDERR(-error); + } + for(pfkey_socketsp = pfkey_open_sockets; + pfkey_socketsp; + pfkey_socketsp = pfkey_socketsp->next) { + if((error = pfkey_upmsg(pfkey_socketsp->socketp, pfkey_reply))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_getspi_parse: " + "sending up getspi reply message for satype=%d(%s) to socket=0p%p failed with error=%d.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp, + error); + SENDERR(-error); + } + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_getspi_parse: " + "sending up getspi reply message for satype=%d(%s) to socket=0p%p succeeded.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp); + } + + if((error = ipsec_sa_add(extr->ips))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_getspi_parse: " + "failed to add the larval SA=%s with error=%d.\n", + sa_len ? sa : " (error)", + error); + SENDERR(-error); + } + extr->ips = NULL; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_getspi_parse: " + "successful for SA: %s\n", + sa_len ? sa : " (error)"); + + errlab: + if (pfkey_reply) { + pfkey_msg_free(&pfkey_reply); + } + pfkey_extensions_free(extensions_reply); + return error; +} + +DEBUG_NO_STATIC int +pfkey_update_parse(struct sock *sk, struct sadb_ext **extensions, struct pfkey_extracted_data* extr) +{ + int error = 0; + struct ipsec_sa* ipsq; + char sa[SATOT_BUF]; + size_t sa_len; + struct sadb_ext *extensions_reply[SADB_EXT_MAX+1]; + struct sadb_msg *pfkey_reply = NULL; + struct socket_list *pfkey_socketsp; + uint8_t satype = ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_satype; +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL + struct ipsec_sa *nat_t_ips_saved = NULL; +#endif + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_update_parse: .\n"); + + pfkey_extensions_init(extensions_reply); + + if(((struct sadb_sa*)extensions[SADB_EXT_SA])->sadb_sa_state != SADB_SASTATE_MATURE) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_update_parse: " + "error, sa_state=%d must be MATURE=%d\n", + ((struct sadb_sa*)extensions[SADB_EXT_SA])->sadb_sa_state, + SADB_SASTATE_MATURE); + SENDERR(EINVAL); + } + + if(extr == NULL || extr->ips == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_update_parse: " + "error, extr or extr->ips pointer NULL\n"); + SENDERR(EINVAL); + } + + sa_len = satot(&extr->ips->ips_said, 0, sa, sizeof(sa)); + + spin_lock_bh(&tdb_lock); + + ipsq = ipsec_sa_getbyid(&(extr->ips->ips_said)); + if (ipsq == NULL) { + spin_unlock_bh(&tdb_lock); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_update_parse: " + "reserved ipsec_sa for SA: %s not found. Call SADB_GETSPI first or call SADB_ADD instead.\n", + sa_len ? sa : " (error)"); + SENDERR(ENOENT); + } + + if(inet_addr_type((unsigned long)extr->ips->ips_said.dst.u.v4.sin_addr.s_addr) == RTN_LOCAL) { + extr->ips->ips_flags |= EMT_INBOUND; + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_update_parse: " + "existing ipsec_sa found (this is good) for SA: %s, %s-bound, updating.\n", + sa_len ? sa : " (error)", + extr->ips->ips_flags & EMT_INBOUND ? "in" : "out"); + +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL + if (extr->ips->ips_natt_sport || extr->ips->ips_natt_dport) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_update_parse: only updating NAT-T ports " + "(%u:%u -> %u:%u)\n", + ipsq->ips_natt_sport, ipsq->ips_natt_dport, + extr->ips->ips_natt_sport, extr->ips->ips_natt_dport); + + if (extr->ips->ips_natt_sport) { + ipsq->ips_natt_sport = extr->ips->ips_natt_sport; + if (ipsq->ips_addr_s->sa_family == AF_INET) { + ((struct sockaddr_in *)(ipsq->ips_addr_s))->sin_port = htons(extr->ips->ips_natt_sport); + } + } + + if (extr->ips->ips_natt_dport) { + ipsq->ips_natt_dport = extr->ips->ips_natt_dport; + if (ipsq->ips_addr_d->sa_family == AF_INET) { + ((struct sockaddr_in *)(ipsq->ips_addr_d))->sin_port = htons(extr->ips->ips_natt_dport); + } + } + + nat_t_ips_saved = extr->ips; + extr->ips = ipsq; + } + else { +#endif + + /* XXX extr->ips->ips_rcvif = &(enc_softc[em->em_if].enc_if);*/ + extr->ips->ips_rcvif = NULL; + if ((error = pfkey_ipsec_sa_init(extr->ips))) { + ipsec_sa_put(ipsq); + spin_unlock_bh(&tdb_lock); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_update_parse: " + "not successful for SA: %s, deleting.\n", + sa_len ? sa : " (error)"); + SENDERR(-error); + } + + extr->ips->ips_life.ipl_addtime.ipl_count = ipsq->ips_life.ipl_addtime.ipl_count; + ipsec_sa_put(ipsq); + if((error = ipsec_sa_delchain(ipsq))) { + spin_unlock_bh(&tdb_lock); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_update_parse: " + "error=%d, trouble deleting intermediate ipsec_sa for SA=%s.\n", + error, + sa_len ? sa : " (error)"); + SENDERR(-error); + } +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL + } +#endif + + spin_unlock_bh(&tdb_lock); + + if(!(pfkey_safe_build(error = pfkey_msg_hdr_build(&extensions_reply[0], + SADB_UPDATE, + satype, + 0, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_seq, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_pid), + extensions_reply) + && pfkey_safe_build(error = pfkey_sa_ref_build(&extensions_reply[SADB_EXT_SA], + SADB_EXT_SA, + extr->ips->ips_said.spi, + extr->ips->ips_replaywin, + extr->ips->ips_state, + extr->ips->ips_authalg, + extr->ips->ips_encalg, + extr->ips->ips_flags, + extr->ips->ips_ref), + extensions_reply) + /* The 3 lifetime extentions should only be sent if non-zero. */ + && (extensions[SADB_EXT_LIFETIME_HARD] + ? pfkey_safe_build(error = pfkey_lifetime_build(&extensions_reply[SADB_EXT_LIFETIME_HARD], + SADB_EXT_LIFETIME_HARD, + extr->ips->ips_life.ipl_allocations.ipl_hard, + extr->ips->ips_life.ipl_bytes.ipl_hard, + extr->ips->ips_life.ipl_addtime.ipl_hard, + extr->ips->ips_life.ipl_usetime.ipl_hard, + extr->ips->ips_life.ipl_packets.ipl_hard), + extensions_reply) : 1) + && (extensions[SADB_EXT_LIFETIME_SOFT] + ? pfkey_safe_build(error = pfkey_lifetime_build(&extensions_reply[SADB_EXT_LIFETIME_SOFT], + SADB_EXT_LIFETIME_SOFT, + extr->ips->ips_life.ipl_allocations.ipl_count, + extr->ips->ips_life.ipl_bytes.ipl_count, + extr->ips->ips_life.ipl_addtime.ipl_count, + extr->ips->ips_life.ipl_usetime.ipl_count, + extr->ips->ips_life.ipl_packets.ipl_count), + extensions_reply) : 1) + && (extr->ips->ips_life.ipl_allocations.ipl_count + || extr->ips->ips_life.ipl_bytes.ipl_count + || extr->ips->ips_life.ipl_addtime.ipl_count + || extr->ips->ips_life.ipl_usetime.ipl_count + || extr->ips->ips_life.ipl_packets.ipl_count + + ? pfkey_safe_build(error = pfkey_lifetime_build(&extensions_reply[SADB_EXT_LIFETIME_CURRENT], + SADB_EXT_LIFETIME_CURRENT, + extr->ips->ips_life.ipl_allocations.ipl_count, + extr->ips->ips_life.ipl_bytes.ipl_count, + extr->ips->ips_life.ipl_addtime.ipl_count, + extr->ips->ips_life.ipl_usetime.ipl_count, + extr->ips->ips_life.ipl_packets.ipl_count), + extensions_reply) : 1) + && pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_EXT_ADDRESS_SRC], + SADB_EXT_ADDRESS_SRC, + 0, /*extr->ips->ips_said.proto,*/ + 0, + extr->ips->ips_addr_s), + extensions_reply) + && pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_EXT_ADDRESS_DST], + SADB_EXT_ADDRESS_DST, + 0, /*extr->ips->ips_said.proto,*/ + 0, + extr->ips->ips_addr_d), + extensions_reply) + && (extr->ips->ips_ident_s.data + ? pfkey_safe_build(error = pfkey_ident_build(&extensions_reply[SADB_EXT_IDENTITY_SRC], + SADB_EXT_IDENTITY_SRC, + extr->ips->ips_ident_s.type, + extr->ips->ips_ident_s.id, + extr->ips->ips_ident_s.len, + extr->ips->ips_ident_s.data), + extensions_reply) : 1) + && (extr->ips->ips_ident_d.data + ? pfkey_safe_build(error = pfkey_ident_build(&extensions_reply[SADB_EXT_IDENTITY_DST], + SADB_EXT_IDENTITY_DST, + extr->ips->ips_ident_d.type, + extr->ips->ips_ident_d.id, + extr->ips->ips_ident_d.len, + extr->ips->ips_ident_d.data), + extensions_reply) : 1) +#if 0 + /* FIXME: This won't work yet because I have not finished + it. */ + && (extr->ips->ips_sens_ + ? pfkey_safe_build(error = pfkey_sens_build(&extensions_reply[SADB_EXT_SENSITIVITY], + extr->ips->ips_sens_dpd, + extr->ips->ips_sens_sens_level, + extr->ips->ips_sens_sens_len, + extr->ips->ips_sens_sens_bitmap, + extr->ips->ips_sens_integ_level, + extr->ips->ips_sens_integ_len, + extr->ips->ips_sens_integ_bitmap), + extensions_reply) : 1) +#endif + )) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_update_parse: " + "failed to build the update reply message extensions\n"); + SENDERR(-error); + } + + if((error = pfkey_msg_build(&pfkey_reply, extensions_reply, EXT_BITS_OUT))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_update_parse: " + "failed to build the update reply message\n"); + SENDERR(-error); + } + for(pfkey_socketsp = pfkey_open_sockets; + pfkey_socketsp; + pfkey_socketsp = pfkey_socketsp->next) { + if((error = pfkey_upmsg(pfkey_socketsp->socketp, pfkey_reply))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_update_parse: " + "sending up update reply message for satype=%d(%s) to socket=0p%p failed with error=%d.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp, + error); + SENDERR(-error); + } + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_update_parse: " + "sending up update reply message for satype=%d(%s) to socket=0p%p succeeded.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp); + } + +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL + if (nat_t_ips_saved) { + /** + * As we _really_ update existing SA, we keep tdbq and need to delete + * parsed ips (nat_t_ips_saved, was extr->ips). + * + * goto errlab with extr->ips = nat_t_ips_saved will free it. + */ + + extr->ips = nat_t_ips_saved; + + error = 0; + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_update_parse (NAT-T ports): " + "successful for SA: %s\n", + sa_len ? sa : " (error)"); + + goto errlab; + } +#endif + + if((error = ipsec_sa_add(extr->ips))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_update_parse: " + "failed to update the mature SA=%s with error=%d.\n", + sa_len ? sa : " (error)", + error); + SENDERR(-error); + } + extr->ips = NULL; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_update_parse: " + "successful for SA: %s\n", + sa_len ? sa : " (error)"); + + errlab: + if (pfkey_reply) { + pfkey_msg_free(&pfkey_reply); + } + pfkey_extensions_free(extensions_reply); + return error; +} + +DEBUG_NO_STATIC int +pfkey_add_parse(struct sock *sk, struct sadb_ext **extensions, struct pfkey_extracted_data* extr) +{ + int error = 0; + struct ipsec_sa* ipsq; + char sa[SATOT_BUF]; + size_t sa_len; + struct sadb_ext *extensions_reply[SADB_EXT_MAX+1]; + struct sadb_msg *pfkey_reply = NULL; + struct socket_list *pfkey_socketsp; + uint8_t satype = ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_satype; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_add_parse: .\n"); + + pfkey_extensions_init(extensions_reply); + + if(((struct sadb_sa*)extensions[SADB_EXT_SA])->sadb_sa_state != SADB_SASTATE_MATURE) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_add_parse: " + "error, sa_state=%d must be MATURE=%d\n", + ((struct sadb_sa*)extensions[SADB_EXT_SA])->sadb_sa_state, + SADB_SASTATE_MATURE); + SENDERR(EINVAL); + } + + if(!extr || !extr->ips) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_add_parse: " + "extr or extr->ips pointer NULL\n"); + SENDERR(EINVAL); + } + + sa_len = satot(&extr->ips->ips_said, 0, sa, sizeof(sa)); + + ipsq = ipsec_sa_getbyid(&(extr->ips->ips_said)); + if(ipsq != NULL) { + ipsec_sa_put(ipsq); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_add_parse: " + "found an old ipsec_sa for SA%s, delete it first.\n", + sa_len ? sa : " (error)"); + SENDERR(EEXIST); + } + + if(inet_addr_type((unsigned long)extr->ips->ips_said.dst.u.v4.sin_addr.s_addr) == RTN_LOCAL) { + extr->ips->ips_flags |= EMT_INBOUND; + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_add_parse: " + "existing ipsec_sa not found (this is good) for SA%s, %s-bound, allocating.\n", + sa_len ? sa : " (error)", + extr->ips->ips_flags & EMT_INBOUND ? "in" : "out"); + + /* XXX extr->ips->ips_rcvif = &(enc_softc[em->em_if].enc_if);*/ + extr->ips->ips_rcvif = NULL; + + if ((error = pfkey_ipsec_sa_init(extr->ips))) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_add_parse: " + "not successful for SA: %s, deleting.\n", + sa_len ? sa : " (error)"); + SENDERR(-error); + } + + extr->ips->ips_life.ipl_addtime.ipl_count = jiffies / HZ; + if(!extr->ips->ips_life.ipl_allocations.ipl_count) { + extr->ips->ips_life.ipl_allocations.ipl_count += 1; + } + + if(!(pfkey_safe_build(error = pfkey_msg_hdr_build(&extensions_reply[0], + SADB_ADD, + satype, + 0, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_seq, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_pid), + extensions_reply) + && pfkey_safe_build(error = pfkey_sa_ref_build(&extensions_reply[SADB_EXT_SA], + SADB_EXT_SA, + extr->ips->ips_said.spi, + extr->ips->ips_replaywin, + extr->ips->ips_state, + extr->ips->ips_authalg, + extr->ips->ips_encalg, + extr->ips->ips_flags, + extr->ips->ips_ref), + extensions_reply) + /* The 3 lifetime extentions should only be sent if non-zero. */ + && (extensions[SADB_EXT_LIFETIME_HARD] + ? pfkey_safe_build(error = pfkey_lifetime_build(&extensions_reply[SADB_EXT_LIFETIME_HARD], + SADB_EXT_LIFETIME_HARD, + extr->ips->ips_life.ipl_allocations.ipl_hard, + extr->ips->ips_life.ipl_bytes.ipl_hard, + extr->ips->ips_life.ipl_addtime.ipl_hard, + extr->ips->ips_life.ipl_usetime.ipl_hard, + extr->ips->ips_life.ipl_packets.ipl_hard), + extensions_reply) : 1) + && (extensions[SADB_EXT_LIFETIME_SOFT] + ? pfkey_safe_build(error = pfkey_lifetime_build(&extensions_reply[SADB_EXT_LIFETIME_SOFT], + SADB_EXT_LIFETIME_SOFT, + extr->ips->ips_life.ipl_allocations.ipl_soft, + extr->ips->ips_life.ipl_bytes.ipl_soft, + extr->ips->ips_life.ipl_addtime.ipl_soft, + extr->ips->ips_life.ipl_usetime.ipl_soft, + extr->ips->ips_life.ipl_packets.ipl_soft), + extensions_reply) : 1) + && pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_EXT_ADDRESS_SRC], + SADB_EXT_ADDRESS_SRC, + 0, /*extr->ips->ips_said.proto,*/ + 0, + extr->ips->ips_addr_s), + extensions_reply) + && pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_EXT_ADDRESS_DST], + SADB_EXT_ADDRESS_DST, + 0, /*extr->ips->ips_said.proto,*/ + 0, + extr->ips->ips_addr_d), + extensions_reply) + && (extr->ips->ips_ident_s.data + ? pfkey_safe_build(error = pfkey_ident_build(&extensions_reply[SADB_EXT_IDENTITY_SRC], + SADB_EXT_IDENTITY_SRC, + extr->ips->ips_ident_s.type, + extr->ips->ips_ident_s.id, + extr->ips->ips_ident_s.len, + extr->ips->ips_ident_s.data), + extensions_reply) : 1) + && (extr->ips->ips_ident_d.data + ? pfkey_safe_build(error = pfkey_ident_build(&extensions_reply[SADB_EXT_IDENTITY_DST], + SADB_EXT_IDENTITY_DST, + extr->ips->ips_ident_d.type, + extr->ips->ips_ident_d.id, + extr->ips->ips_ident_d.len, + extr->ips->ips_ident_d.data), + extensions_reply) : 1) +#if 0 + /* FIXME: This won't work yet because I have not finished + it. */ + && (extr->ips->ips_sens_ + ? pfkey_safe_build(error = pfkey_sens_build(&extensions_reply[SADB_EXT_SENSITIVITY], + extr->ips->ips_sens_dpd, + extr->ips->ips_sens_sens_level, + extr->ips->ips_sens_sens_len, + extr->ips->ips_sens_sens_bitmap, + extr->ips->ips_sens_integ_level, + extr->ips->ips_sens_integ_len, + extr->ips->ips_sens_integ_bitmap), + extensions_reply) : 1) +#endif + )) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_add_parse: " + "failed to build the add reply message extensions\n"); + SENDERR(-error); + } + + if((error = pfkey_msg_build(&pfkey_reply, extensions_reply, EXT_BITS_OUT))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_add_parse: " + "failed to build the add reply message\n"); + SENDERR(-error); + } + for(pfkey_socketsp = pfkey_open_sockets; + pfkey_socketsp; + pfkey_socketsp = pfkey_socketsp->next) { + if((error = pfkey_upmsg(pfkey_socketsp->socketp, pfkey_reply))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_add_parse: " + "sending up add reply message for satype=%d(%s) to socket=0p%p failed with error=%d.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp, + error); + SENDERR(-error); + } + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_add_parse: " + "sending up add reply message for satype=%d(%s) to socket=0p%p succeeded.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp); + } + + if((error = ipsec_sa_add(extr->ips))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_add_parse: " + "failed to add the mature SA=%s with error=%d.\n", + sa_len ? sa : " (error)", + error); + SENDERR(-error); + } + extr->ips = NULL; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_add_parse: " + "successful for SA: %s\n", + sa_len ? sa : " (error)"); + + errlab: + if (pfkey_reply) { + pfkey_msg_free(&pfkey_reply); + } + pfkey_extensions_free(extensions_reply); + return error; +} + +DEBUG_NO_STATIC int +pfkey_delete_parse(struct sock *sk, struct sadb_ext **extensions, struct pfkey_extracted_data* extr) +{ + struct ipsec_sa *ipsp; + char sa[SATOT_BUF]; + size_t sa_len; + int error = 0; + struct sadb_ext *extensions_reply[SADB_EXT_MAX+1]; + struct sadb_msg *pfkey_reply = NULL; + struct socket_list *pfkey_socketsp; + uint8_t satype = ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_satype; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_delete_parse: .\n"); + + pfkey_extensions_init(extensions_reply); + + if(!extr || !extr->ips) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_delete_parse: " + "extr or extr->ips pointer NULL, fatal\n"); + SENDERR(EINVAL); + } + + sa_len = satot(&extr->ips->ips_said, 0, sa, sizeof(sa)); + + spin_lock_bh(&tdb_lock); + + ipsp = ipsec_sa_getbyid(&(extr->ips->ips_said)); + if (ipsp == NULL) { + spin_unlock_bh(&tdb_lock); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_delete_parse: " + "ipsec_sa not found for SA:%s, could not delete.\n", + sa_len ? sa : " (error)"); + SENDERR(ESRCH); + } + + ipsec_sa_put(ipsp); + if((error = ipsec_sa_delchain(ipsp))) { + spin_unlock_bh(&tdb_lock); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_delete_parse: " + "error=%d returned trying to delete ipsec_sa for SA:%s.\n", + error, + sa_len ? sa : " (error)"); + SENDERR(-error); + } + spin_unlock_bh(&tdb_lock); + + if(!(pfkey_safe_build(error = pfkey_msg_hdr_build(&extensions_reply[0], + SADB_DELETE, + satype, + 0, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_seq, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_pid), + extensions_reply) + && pfkey_safe_build(error = pfkey_sa_ref_build(&extensions_reply[SADB_EXT_SA], + SADB_EXT_SA, + extr->ips->ips_said.spi, + 0, + 0, + 0, + 0, + 0, + extr->ips->ips_ref), + extensions_reply) + && pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_EXT_ADDRESS_SRC], + SADB_EXT_ADDRESS_SRC, + 0, /*extr->ips->ips_said.proto,*/ + 0, + extr->ips->ips_addr_s), + extensions_reply) + && pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_EXT_ADDRESS_DST], + SADB_EXT_ADDRESS_DST, + 0, /*extr->ips->ips_said.proto,*/ + 0, + extr->ips->ips_addr_d), + extensions_reply) + )) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_delete_parse: " + "failed to build the delete reply message extensions\n"); + SENDERR(-error); + } + + if((error = pfkey_msg_build(&pfkey_reply, extensions_reply, EXT_BITS_OUT))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_delete_parse: " + "failed to build the delete reply message\n"); + SENDERR(-error); + } + for(pfkey_socketsp = pfkey_open_sockets; + pfkey_socketsp; + pfkey_socketsp = pfkey_socketsp->next) { + if((error = pfkey_upmsg(pfkey_socketsp->socketp, pfkey_reply))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_delete_parse: " + "sending up delete reply message for satype=%d(%s) to socket=0p%p failed with error=%d.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp, + error); + SENDERR(-error); + } + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_delete_parse: " + "sending up delete reply message for satype=%d(%s) to socket=0p%p succeeded.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp); + } + + errlab: + if (pfkey_reply) { + pfkey_msg_free(&pfkey_reply); + } + pfkey_extensions_free(extensions_reply); + return error; +} + +DEBUG_NO_STATIC int +pfkey_get_parse(struct sock *sk, struct sadb_ext **extensions, struct pfkey_extracted_data* extr) +{ + int error = 0; + struct ipsec_sa *ipsp; + char sa[SATOT_BUF]; + size_t sa_len; + struct sadb_ext *extensions_reply[SADB_EXT_MAX+1]; + struct sadb_msg *pfkey_reply = NULL; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_get_parse: .\n"); + + pfkey_extensions_init(extensions_reply); + + if(!extr || !extr->ips) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_get_parse: " + "extr or extr->ips pointer NULL, fatal\n"); + SENDERR(EINVAL); + } + + sa_len = satot(&extr->ips->ips_said, 0, sa, sizeof(sa)); + + spin_lock_bh(&tdb_lock); + + ipsp = ipsec_sa_getbyid(&(extr->ips->ips_said)); + if (ipsp == NULL) { + spin_unlock_bh(&tdb_lock); + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_get_parse: " + "ipsec_sa not found for SA=%s, could not get.\n", + sa_len ? sa : " (error)"); + SENDERR(ESRCH); + } + + if(!(pfkey_safe_build(error = pfkey_msg_hdr_build(&extensions_reply[0], + SADB_GET, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_satype, + 0, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_seq, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_pid), + extensions_reply) + && pfkey_safe_build(error = pfkey_sa_ref_build(&extensions_reply[SADB_EXT_SA], + SADB_EXT_SA, + extr->ips->ips_said.spi, + extr->ips->ips_replaywin, + extr->ips->ips_state, + extr->ips->ips_authalg, + extr->ips->ips_encalg, + extr->ips->ips_flags, + extr->ips->ips_ref), + extensions_reply) + /* The 3 lifetime extentions should only be sent if non-zero. */ + && (ipsp->ips_life.ipl_allocations.ipl_count + || ipsp->ips_life.ipl_bytes.ipl_count + || ipsp->ips_life.ipl_addtime.ipl_count + || ipsp->ips_life.ipl_usetime.ipl_count + || ipsp->ips_life.ipl_packets.ipl_count + ? pfkey_safe_build(error = pfkey_lifetime_build(&extensions_reply[SADB_EXT_LIFETIME_CURRENT], + SADB_EXT_LIFETIME_CURRENT, + ipsp->ips_life.ipl_allocations.ipl_count, + ipsp->ips_life.ipl_bytes.ipl_count, + ipsp->ips_life.ipl_addtime.ipl_count, + ipsp->ips_life.ipl_usetime.ipl_count, + ipsp->ips_life.ipl_packets.ipl_count), + extensions_reply) : 1) + && (ipsp->ips_life.ipl_allocations.ipl_hard + || ipsp->ips_life.ipl_bytes.ipl_hard + || ipsp->ips_life.ipl_addtime.ipl_hard + || ipsp->ips_life.ipl_usetime.ipl_hard + || ipsp->ips_life.ipl_packets.ipl_hard + ? pfkey_safe_build(error = pfkey_lifetime_build(&extensions_reply[SADB_EXT_LIFETIME_HARD], + SADB_EXT_LIFETIME_HARD, + ipsp->ips_life.ipl_allocations.ipl_hard, + ipsp->ips_life.ipl_bytes.ipl_hard, + ipsp->ips_life.ipl_addtime.ipl_hard, + ipsp->ips_life.ipl_usetime.ipl_hard, + ipsp->ips_life.ipl_packets.ipl_hard), + extensions_reply) : 1) + && (ipsp->ips_life.ipl_allocations.ipl_soft + || ipsp->ips_life.ipl_bytes.ipl_soft + || ipsp->ips_life.ipl_addtime.ipl_soft + || ipsp->ips_life.ipl_usetime.ipl_soft + || ipsp->ips_life.ipl_packets.ipl_soft + ? pfkey_safe_build(error = pfkey_lifetime_build(&extensions_reply[SADB_EXT_LIFETIME_SOFT], + SADB_EXT_LIFETIME_SOFT, + ipsp->ips_life.ipl_allocations.ipl_soft, + ipsp->ips_life.ipl_bytes.ipl_soft, + ipsp->ips_life.ipl_addtime.ipl_soft, + ipsp->ips_life.ipl_usetime.ipl_soft, + ipsp->ips_life.ipl_packets.ipl_soft), + extensions_reply) : 1) + && pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_EXT_ADDRESS_SRC], + SADB_EXT_ADDRESS_SRC, + 0, /*extr->ips->ips_said.proto,*/ + 0, + extr->ips->ips_addr_s), + extensions_reply) + && pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_EXT_ADDRESS_DST], + SADB_EXT_ADDRESS_DST, + 0, /*extr->ips->ips_said.proto,*/ + 0, + extr->ips->ips_addr_d), + extensions_reply) + && (extr->ips->ips_addr_p + ? pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_EXT_ADDRESS_PROXY], + SADB_EXT_ADDRESS_PROXY, + 0, /*extr->ips->ips_said.proto,*/ + 0, + extr->ips->ips_addr_p), + extensions_reply) : 1) +#if 0 + /* FIXME: This won't work yet because the keys are not + stored directly in the ipsec_sa. They are stored as + contexts. */ + && (extr->ips->ips_key_a_size + ? pfkey_safe_build(error = pfkey_key_build(&extensions_reply[SADB_EXT_KEY_AUTH], + SADB_EXT_KEY_AUTH, + extr->ips->ips_key_a_size * 8, + extr->ips->ips_key_a), + extensions_reply) : 1) + /* FIXME: This won't work yet because the keys are not + stored directly in the ipsec_sa. They are stored as + key schedules. */ + && (extr->ips->ips_key_e_size + ? pfkey_safe_build(error = pfkey_key_build(&extensions_reply[SADB_EXT_KEY_ENCRYPT], + SADB_EXT_KEY_ENCRYPT, + extr->ips->ips_key_e_size * 8, + extr->ips->ips_key_e), + extensions_reply) : 1) +#endif + && (extr->ips->ips_ident_s.data + ? pfkey_safe_build(error = pfkey_ident_build(&extensions_reply[SADB_EXT_IDENTITY_SRC], + SADB_EXT_IDENTITY_SRC, + extr->ips->ips_ident_s.type, + extr->ips->ips_ident_s.id, + extr->ips->ips_ident_s.len, + extr->ips->ips_ident_s.data), + extensions_reply) : 1) + && (extr->ips->ips_ident_d.data + ? pfkey_safe_build(error = pfkey_ident_build(&extensions_reply[SADB_EXT_IDENTITY_DST], + SADB_EXT_IDENTITY_DST, + extr->ips->ips_ident_d.type, + extr->ips->ips_ident_d.id, + extr->ips->ips_ident_d.len, + extr->ips->ips_ident_d.data), + extensions_reply) : 1) +#if 0 + /* FIXME: This won't work yet because I have not finished + it. */ + && (extr->ips->ips_sens_ + ? pfkey_safe_build(error = pfkey_sens_build(&extensions_reply[SADB_EXT_SENSITIVITY], + extr->ips->ips_sens_dpd, + extr->ips->ips_sens_sens_level, + extr->ips->ips_sens_sens_len, + extr->ips->ips_sens_sens_bitmap, + extr->ips->ips_sens_integ_level, + extr->ips->ips_sens_integ_len, + extr->ips->ips_sens_integ_bitmap), + extensions_reply) : 1) +#endif + )) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_get_parse: " + "failed to build the get reply message extensions\n"); + ipsec_sa_put(ipsp); + spin_unlock_bh(&tdb_lock); + SENDERR(-error); + } + + ipsec_sa_put(ipsp); + spin_unlock_bh(&tdb_lock); + + if((error = pfkey_msg_build(&pfkey_reply, extensions_reply, EXT_BITS_OUT))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_get_parse: " + "failed to build the get reply message\n"); + SENDERR(-error); + } + + if((error = pfkey_upmsg(sk->sk_socket, pfkey_reply))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_get_parse: " + "failed to send the get reply message\n"); + SENDERR(-error); + } + + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_get_parse: " + "succeeded in sending get reply message.\n"); + + errlab: + if (pfkey_reply) { + pfkey_msg_free(&pfkey_reply); + } + pfkey_extensions_free(extensions_reply); + return error; +} + +DEBUG_NO_STATIC int +pfkey_acquire_parse(struct sock *sk, struct sadb_ext **extensions, struct pfkey_extracted_data* extr) +{ + int error = 0; + struct socket_list *pfkey_socketsp; + uint8_t satype = ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_satype; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_acquire_parse: .\n"); + + /* XXX I don't know if we want an upper bound, since userspace may + want to register itself for an satype > SADB_SATYPE_MAX. */ + if((satype == 0) || (satype > SADB_SATYPE_MAX)) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_acquire_parse: " + "SATYPE=%d invalid.\n", + satype); + SENDERR(EINVAL); + } + + if(!(pfkey_registered_sockets[satype])) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_acquire_parse: " + "no sockets registered for SAtype=%d(%s).\n", + satype, + satype2name(satype)); + SENDERR(EPROTONOSUPPORT); + } + + for(pfkey_socketsp = pfkey_registered_sockets[satype]; + pfkey_socketsp; + pfkey_socketsp = pfkey_socketsp->next) { + if((error = pfkey_upmsg(pfkey_socketsp->socketp, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_acquire_parse: " + "sending up acquire reply message for satype=%d(%s) to socket=0p%p failed with error=%d.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp, + error); + SENDERR(-error); + } + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_acquire_parse: " + "sending up acquire reply message for satype=%d(%s) to socket=0p%p succeeded.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp); + } + + errlab: + return error; +} + +DEBUG_NO_STATIC int +pfkey_register_parse(struct sock *sk, struct sadb_ext **extensions, struct pfkey_extracted_data* extr) +{ + int error = 0; + uint8_t satype = ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_satype; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_register_parse: .\n"); + + /* XXX I don't know if we want an upper bound, since userspace may + want to register itself for an satype > SADB_SATYPE_MAX. */ + if((satype == 0) || (satype > SADB_SATYPE_MAX)) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_register_parse: " + "SATYPE=%d invalid.\n", + satype); + SENDERR(EINVAL); + } + + if(!pfkey_list_insert_socket(sk->sk_socket, + &(pfkey_registered_sockets[satype]))) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_register_parse: " + "SATYPE=%02d(%s) successfully registered by KMd (pid=%d).\n", + satype, + satype2name(satype), + key_pid(sk)); + }; + + /* send up register msg with supported SATYPE algos */ + + error=pfkey_register_reply(satype, (struct sadb_msg*)extensions[SADB_EXT_RESERVED]); + errlab: + return error; +} + +int +pfkey_register_reply(int satype, struct sadb_msg *sadb_msg) +{ + struct sadb_ext *extensions_reply[SADB_EXT_MAX+1]; + struct sadb_msg *pfkey_reply = NULL; + struct socket_list *pfkey_socketsp; + struct supported_list *pfkey_supported_listp; + unsigned int alg_num_a = 0, alg_num_e = 0; + struct sadb_alg *alg_a = NULL, *alg_e = NULL, *alg_ap = NULL, *alg_ep = NULL; + int error = 0; + + pfkey_extensions_init(extensions_reply); + + if((satype == 0) || (satype > SADB_SATYPE_MAX)) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_register_reply: " + "SAtype=%d unspecified or unknown.\n", + satype); + SENDERR(EINVAL); + } + if(!(pfkey_registered_sockets[satype])) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_register_reply: " + "no sockets registered for SAtype=%d(%s).\n", + satype, + satype2name(satype)); + SENDERR(EPROTONOSUPPORT); + } + /* send up register msg with supported SATYPE algos */ + pfkey_supported_listp = pfkey_supported_list[satype]; + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_register_reply: " + "pfkey_supported_list[%d]=0p%p\n", + satype, + pfkey_supported_list[satype]); + while(pfkey_supported_listp) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_register_reply: " + "checking supported=0p%p\n", + pfkey_supported_listp); + if(pfkey_supported_listp->supportedp->ias_exttype == SADB_EXT_SUPPORTED_AUTH) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_register_reply: " + "adding auth alg.\n"); + alg_num_a++; + } + if(pfkey_supported_listp->supportedp->ias_exttype == SADB_EXT_SUPPORTED_ENCRYPT) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_register_reply: " + "adding encrypt alg.\n"); + alg_num_e++; + } + pfkey_supported_listp = pfkey_supported_listp->next; + } + + if(alg_num_a) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_register_reply: " + "allocating %lu bytes for auth algs.\n", + (unsigned long) (alg_num_a * sizeof(struct sadb_alg))); + if((alg_a = kmalloc(alg_num_a * sizeof(struct sadb_alg), GFP_ATOMIC) ) == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_register_reply: " + "auth alg memory allocation error\n"); + SENDERR(ENOMEM); + } + alg_ap = alg_a; + } + + if(alg_num_e) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_register_reply: " + "allocating %lu bytes for enc algs.\n", + (unsigned long) (alg_num_e * sizeof(struct sadb_alg))); + if((alg_e = kmalloc(alg_num_e * sizeof(struct sadb_alg), GFP_ATOMIC) ) == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_register_reply: " + "enc alg memory allocation error\n"); + SENDERR(ENOMEM); + } + alg_ep = alg_e; + } + + pfkey_supported_listp = pfkey_supported_list[satype]; + while(pfkey_supported_listp) { + if(alg_num_a) { + if(pfkey_supported_listp->supportedp->ias_exttype == SADB_EXT_SUPPORTED_AUTH) { + alg_ap->sadb_alg_id = pfkey_supported_listp->supportedp->ias_id; + alg_ap->sadb_alg_ivlen = pfkey_supported_listp->supportedp->ias_ivlen; + alg_ap->sadb_alg_minbits = pfkey_supported_listp->supportedp->ias_keyminbits; + alg_ap->sadb_alg_maxbits = pfkey_supported_listp->supportedp->ias_keymaxbits; + alg_ap->sadb_alg_reserved = 0; + KLIPS_PRINT(debug_pfkey && sysctl_ipsec_debug_verbose, + "klips_debug:pfkey_register_reply: " + "adding auth=0p%p\n", + alg_ap); + alg_ap++; + } + } + if(alg_num_e) { + if(pfkey_supported_listp->supportedp->ias_exttype == SADB_EXT_SUPPORTED_ENCRYPT) { + alg_ep->sadb_alg_id = pfkey_supported_listp->supportedp->ias_id; + alg_ep->sadb_alg_ivlen = pfkey_supported_listp->supportedp->ias_ivlen; + alg_ep->sadb_alg_minbits = pfkey_supported_listp->supportedp->ias_keyminbits; + alg_ep->sadb_alg_maxbits = pfkey_supported_listp->supportedp->ias_keymaxbits; + alg_ep->sadb_alg_reserved = 0; + KLIPS_PRINT(debug_pfkey && sysctl_ipsec_debug_verbose, + "klips_debug:pfkey_register_reply: " + "adding encrypt=0p%p\n", + alg_ep); + alg_ep++; + } + } + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_register_reply: " + "found satype=%d(%s) exttype=%d id=%d ivlen=%d minbits=%d maxbits=%d.\n", + satype, + satype2name(satype), + pfkey_supported_listp->supportedp->ias_exttype, + pfkey_supported_listp->supportedp->ias_id, + pfkey_supported_listp->supportedp->ias_ivlen, + pfkey_supported_listp->supportedp->ias_keyminbits, + pfkey_supported_listp->supportedp->ias_keymaxbits); + pfkey_supported_listp = pfkey_supported_listp->next; + } + + if(!(pfkey_safe_build(error = pfkey_msg_hdr_build(&extensions_reply[0], + SADB_REGISTER, + satype, + 0, + sadb_msg? sadb_msg->sadb_msg_seq : ++pfkey_msg_seq, + sadb_msg? sadb_msg->sadb_msg_pid: current->pid), + extensions_reply) && + (alg_num_a ? pfkey_safe_build(error = pfkey_supported_build(&extensions_reply[SADB_EXT_SUPPORTED_AUTH], + SADB_EXT_SUPPORTED_AUTH, + alg_num_a, + alg_a), + extensions_reply) : 1) && + (alg_num_e ? pfkey_safe_build(error = pfkey_supported_build(&extensions_reply[SADB_EXT_SUPPORTED_ENCRYPT], + SADB_EXT_SUPPORTED_ENCRYPT, + alg_num_e, + alg_e), + extensions_reply) : 1))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_register_reply: " + "failed to build the register message extensions_reply\n"); + SENDERR(-error); + } + + if((error = pfkey_msg_build(&pfkey_reply, extensions_reply, EXT_BITS_OUT))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_register_reply: " + "failed to build the register message\n"); + SENDERR(-error); + } + /* this should go to all registered sockets for that satype only */ + for(pfkey_socketsp = pfkey_registered_sockets[satype]; + pfkey_socketsp; + pfkey_socketsp = pfkey_socketsp->next) { + if((error = pfkey_upmsg(pfkey_socketsp->socketp, pfkey_reply))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_register_reply: " + "sending up acquire message for satype=%d(%s) to socket=0p%p failed with error=%d.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp, + error); + SENDERR(-error); + } + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_register_reply: " + "sending up register message for satype=%d(%s) to socket=0p%p succeeded.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp); + } + + errlab: + if(alg_a) { + kfree(alg_a); + } + if(alg_e) { + kfree(alg_e); + } + + if (pfkey_reply) { + pfkey_msg_free(&pfkey_reply); + } + pfkey_extensions_free(extensions_reply); + return error; +} + +DEBUG_NO_STATIC int +pfkey_expire_parse(struct sock *sk, struct sadb_ext **extensions, struct pfkey_extracted_data* extr) +{ + int error = 0; + struct socket_list *pfkey_socketsp; +#ifdef CONFIG_KLIPS_DEBUG + uint8_t satype = ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_satype; +#endif /* CONFIG_KLIPS_DEBUG */ + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_expire_parse: .\n"); + + if(pfkey_open_sockets) { + for(pfkey_socketsp = pfkey_open_sockets; + pfkey_socketsp; + pfkey_socketsp = pfkey_socketsp->next) { + if((error = pfkey_upmsg(pfkey_socketsp->socketp, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_expire_parse: " + "sending up expire reply message for satype=%d(%s) to socket=0p%p failed with error=%d.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp, + error); + SENDERR(-error); + } + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_expire_parse: " + "sending up expire reply message for satype=%d(%s) to socket=0p%p succeeded.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp); + } + } + + errlab: + return error; +} + +DEBUG_NO_STATIC int +pfkey_flush_parse(struct sock *sk, struct sadb_ext **extensions, struct pfkey_extracted_data* extr) +{ + int error = 0; + struct socket_list *pfkey_socketsp; + uint8_t satype = ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_satype; + uint8_t proto = 0; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_flush_parse: " + "flushing type %d SAs\n", + satype); + + if(satype && !(proto = satype2proto(satype))) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_flush_parse: " + "satype %d lookup failed.\n", + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_satype); + SENDERR(EINVAL); + } + + if ((error = ipsec_sadb_cleanup(proto))) { + SENDERR(-error); + } + + if(pfkey_open_sockets) { + for(pfkey_socketsp = pfkey_open_sockets; + pfkey_socketsp; + pfkey_socketsp = pfkey_socketsp->next) { + if((error = pfkey_upmsg(pfkey_socketsp->socketp, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_flush_parse: " + "sending up flush reply message for satype=%d(%s) (proto=%d) to socket=0p%p failed with error=%d.\n", + satype, + satype2name(satype), + proto, + pfkey_socketsp->socketp, + error); + SENDERR(-error); + } + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_flush_parse: " + "sending up flush reply message for satype=%d(%s) to socket=0p%p succeeded.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp); + } + } + + errlab: + return error; +} + +DEBUG_NO_STATIC int +pfkey_dump_parse(struct sock *sk, struct sadb_ext **extensions, struct pfkey_extracted_data* extr) +{ + int error = 0; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_dump_parse: .\n"); + + SENDERR(ENOSYS); + errlab: + return error; +} + +DEBUG_NO_STATIC int +pfkey_x_promisc_parse(struct sock *sk, struct sadb_ext **extensions, struct pfkey_extracted_data* extr) +{ + int error = 0; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_promisc_parse: .\n"); + + SENDERR(ENOSYS); + errlab: + return error; +} + +DEBUG_NO_STATIC int +pfkey_x_pchange_parse(struct sock *sk, struct sadb_ext **extensions, struct pfkey_extracted_data* extr) +{ + int error = 0; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_pchange_parse: .\n"); + + SENDERR(ENOSYS); + errlab: + return error; +} + +DEBUG_NO_STATIC int +pfkey_x_grpsa_parse(struct sock *sk, struct sadb_ext **extensions, struct pfkey_extracted_data* extr) +{ + struct ipsec_sa *ips1p, *ips2p, *ipsp; + struct sadb_ext *extensions_reply[SADB_EXT_MAX+1]; + struct sadb_msg *pfkey_reply = NULL; + struct socket_list *pfkey_socketsp; + uint8_t satype = ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_satype; + char sa1[SATOT_BUF], sa2[SATOT_BUF]; + size_t sa_len1, sa_len2 = 0; + int error = 0; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_grpsa_parse: .\n"); + + pfkey_extensions_init(extensions_reply); + + if(extr == NULL || extr->ips == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_grpsa_parse: " + "extr or extr->ips is NULL, fatal.\n"); + SENDERR(EINVAL); + } + + sa_len1 = satot(&extr->ips->ips_said, 0, sa1, sizeof(sa1)); + if(extr->ips2 != NULL) { + sa_len2 = satot(&extr->ips2->ips_said, 0, sa2, sizeof(sa2)); + } + + spin_lock_bh(&tdb_lock); + + ips1p = ipsec_sa_getbyid(&(extr->ips->ips_said)); + if(ips1p == NULL) { + spin_unlock_bh(&tdb_lock); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_grpsa_parse: " + "reserved ipsec_sa for SA1: %s not found. Call SADB_ADD/UPDATE first.\n", + sa_len1 ? sa1 : " (error)"); + SENDERR(ENOENT); + } + if(extr->ips2) { /* GRPSA */ + ips2p = ipsec_sa_getbyid(&(extr->ips2->ips_said)); + if(ips2p == NULL) { + ipsec_sa_put(ips1p); + spin_unlock_bh(&tdb_lock); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_grpsa_parse: " + "reserved ipsec_sa for SA2: %s not found. Call SADB_ADD/UPDATE first.\n", + sa_len2 ? sa2 : " (error)"); + SENDERR(ENOENT); + } + + /* Is either one already linked? */ + if(ips1p->ips_onext) { + ipsec_sa_put(ips1p); + ipsec_sa_put(ips2p); + spin_unlock_bh(&tdb_lock); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_grpsa_parse: " + "ipsec_sa for SA: %s is already linked.\n", + sa_len1 ? sa1 : " (error)"); + SENDERR(EEXIST); + } + if(ips2p->ips_inext) { + ipsec_sa_put(ips1p); + ipsec_sa_put(ips2p); + spin_unlock_bh(&tdb_lock); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_grpsa_parse: " + "ipsec_sa for SA: %s is already linked.\n", + sa_len2 ? sa2 : " (error)"); + SENDERR(EEXIST); + } + + /* Is extr->ips already linked to extr->ips2? */ + ipsp = ips2p; + while(ipsp) { + if(ipsp == ips1p) { + ipsec_sa_put(ips1p); + ipsec_sa_put(ips2p); + spin_unlock_bh(&tdb_lock); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_grpsa_parse: " + "ipsec_sa for SA: %s is already linked to %s.\n", + sa_len1 ? sa1 : " (error)", + sa_len2 ? sa2 : " (error)"); + SENDERR(EEXIST); + } + ipsp = ipsp->ips_onext; + } + + /* link 'em */ + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_grpsa_parse: " + "linking ipsec_sa SA: %s with %s.\n", + sa_len1 ? sa1 : " (error)", + sa_len2 ? sa2 : " (error)"); + ips1p->ips_onext = ips2p; + ips2p->ips_inext = ips1p; + } else { /* UNGRPSA */ + ipsec_sa_put(ips1p); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_grpsa_parse: " + "unlinking ipsec_sa SA: %s.\n", + sa_len1 ? sa1 : " (error)"); + while(ips1p->ips_onext) { + ips1p = ips1p->ips_onext; + } + while(ips1p->ips_inext) { + ipsp = ips1p; + ips1p = ips1p->ips_inext; + ipsec_sa_put(ips1p); + ipsp->ips_inext = NULL; + ipsec_sa_put(ipsp); + ips1p->ips_onext = NULL; + } + } + + spin_unlock_bh(&tdb_lock); + + if(!(pfkey_safe_build(error = pfkey_msg_hdr_build(&extensions_reply[0], + SADB_X_GRPSA, + satype, + 0, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_seq, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_pid), + extensions_reply) + && pfkey_safe_build(error = pfkey_sa_ref_build(&extensions_reply[SADB_EXT_SA], + SADB_EXT_SA, + extr->ips->ips_said.spi, + extr->ips->ips_replaywin, + extr->ips->ips_state, + extr->ips->ips_authalg, + extr->ips->ips_encalg, + extr->ips->ips_flags, + extr->ips->ips_ref), + extensions_reply) + && pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_EXT_ADDRESS_DST], + SADB_EXT_ADDRESS_DST, + 0, /*extr->ips->ips_said.proto,*/ + 0, + extr->ips->ips_addr_d), + extensions_reply) + && (extr->ips2 + ? (pfkey_safe_build(error = pfkey_x_satype_build(&extensions_reply[SADB_X_EXT_SATYPE2], + ((struct sadb_x_satype*)extensions[SADB_X_EXT_SATYPE2])->sadb_x_satype_satype + /* proto2satype(extr->ips2->ips_said.proto) */), + extensions_reply) + && pfkey_safe_build(error = pfkey_sa_ref_build(&extensions_reply[SADB_X_EXT_SA2], + SADB_X_EXT_SA2, + extr->ips2->ips_said.spi, + extr->ips2->ips_replaywin, + extr->ips2->ips_state, + extr->ips2->ips_authalg, + extr->ips2->ips_encalg, + extr->ips2->ips_flags, + extr->ips2->ips_ref), + extensions_reply) + && pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_X_EXT_ADDRESS_DST2], + SADB_X_EXT_ADDRESS_DST2, + 0, /*extr->ips->ips_said.proto,*/ + 0, + extr->ips2->ips_addr_d), + extensions_reply) ) : 1 ) + )) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_x_grpsa_parse: " + "failed to build the x_grpsa reply message extensions\n"); + SENDERR(-error); + } + + if((error = pfkey_msg_build(&pfkey_reply, extensions_reply, EXT_BITS_OUT))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_x_grpsa_parse: " + "failed to build the x_grpsa reply message\n"); + SENDERR(-error); + } + + for(pfkey_socketsp = pfkey_open_sockets; + pfkey_socketsp; + pfkey_socketsp = pfkey_socketsp->next) { + if((error = pfkey_upmsg(pfkey_socketsp->socketp, pfkey_reply))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_x_grpsa_parse: " + "sending up x_grpsa reply message for satype=%d(%s) to socket=0p%p failed with error=%d.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp, + error); + SENDERR(-error); + } + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_x_grpsa_parse: " + "sending up x_grpsa reply message for satype=%d(%s) to socket=0p%p succeeded.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp); + } + + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_x_grpsa_parse: " + "succeeded in sending x_grpsa reply message.\n"); + + errlab: + if (pfkey_reply) { + pfkey_msg_free(&pfkey_reply); + } + pfkey_extensions_free(extensions_reply); + return error; +} + +DEBUG_NO_STATIC int +pfkey_x_addflow_parse(struct sock *sk, struct sadb_ext **extensions, struct pfkey_extracted_data* extr) +{ + int error = 0; +#ifdef CONFIG_KLIPS_DEBUG + char buf1[64], buf2[64]; +#endif /* CONFIG_KLIPS_DEBUG */ + struct sadb_ext *extensions_reply[SADB_EXT_MAX+1]; + struct sadb_msg *pfkey_reply = NULL; + struct socket_list *pfkey_socketsp; + uint8_t satype = ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_satype; + ip_address srcflow, dstflow, srcmask, dstmask; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_addflow_parse: .\n"); + + pfkey_extensions_init(extensions_reply); + + memset((caddr_t)&srcflow, 0, sizeof(srcflow)); + memset((caddr_t)&dstflow, 0, sizeof(dstflow)); + memset((caddr_t)&srcmask, 0, sizeof(srcmask)); + memset((caddr_t)&dstmask, 0, sizeof(dstmask)); + + if(!extr || !(extr->ips) || !(extr->eroute)) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_addflow_parse: " + "missing extr, ipsec_sa or eroute data.\n"); + SENDERR(EINVAL); + } + + srcflow.u.v4.sin_family = AF_INET; + dstflow.u.v4.sin_family = AF_INET; + srcmask.u.v4.sin_family = AF_INET; + dstmask.u.v4.sin_family = AF_INET; + srcflow.u.v4.sin_addr = extr->eroute->er_eaddr.sen_ip_src; + dstflow.u.v4.sin_addr = extr->eroute->er_eaddr.sen_ip_dst; + srcmask.u.v4.sin_addr = extr->eroute->er_emask.sen_ip_src; + dstmask.u.v4.sin_addr = extr->eroute->er_emask.sen_ip_dst; + +#ifdef CONFIG_KLIPS_DEBUG + if (debug_pfkey) { + subnettoa(extr->eroute->er_eaddr.sen_ip_src, + extr->eroute->er_emask.sen_ip_src, 0, buf1, sizeof(buf1)); + subnettoa(extr->eroute->er_eaddr.sen_ip_dst, + extr->eroute->er_emask.sen_ip_dst, 0, buf2, sizeof(buf2)); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_addflow_parse: " + "calling breakeroute and/or makeroute for %s->%s\n", + buf1, buf2); + } +#endif /* CONFIG_KLIPS_DEBUG */ + + if(extr->ips->ips_flags & SADB_X_SAFLAGS_INFLOW) { + struct ipsec_sa *ipsp, *ipsq; + char sa[SATOT_BUF]; + size_t sa_len; + + ipsq = ipsec_sa_getbyid(&(extr->ips->ips_said)); + if(ipsq == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_addflow_parse: " + "ipsec_sa not found, cannot set incoming policy.\n"); + SENDERR(ENOENT); + } + + ipsp = ipsq; + while(ipsp && ipsp->ips_said.proto != IPPROTO_IPIP) { + ipsp = ipsp->ips_inext; + } + + if(ipsp == NULL) { + ipsec_sa_put(ipsq); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_addflow_parse: " + "SA chain does not have an IPIP SA, cannot set incoming policy.\n"); + SENDERR(ENOENT); + } + + sa_len = satot(&extr->ips->ips_said, 0, sa, sizeof(sa)); + + ipsp->ips_flags |= SADB_X_SAFLAGS_INFLOW; + ipsp->ips_flow_s = srcflow; + ipsp->ips_flow_d = dstflow; + ipsp->ips_mask_s = srcmask; + ipsp->ips_mask_d = dstmask; + + ipsec_sa_put(ipsq); + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_addflow_parse: " + "inbound eroute, setting incoming policy information in IPIP ipsec_sa for SA: %s.\n", + sa_len ? sa : " (error)"); + } else { + struct sk_buff *first = NULL, *last = NULL; + + if(extr->ips->ips_flags & SADB_X_SAFLAGS_REPLACEFLOW) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_addflow_parse: " + "REPLACEFLOW flag set, calling breakeroute.\n"); + if ((error = ipsec_breakroute(&(extr->eroute->er_eaddr), + &(extr->eroute->er_emask), + &first, &last))) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_addflow_parse: " + "breakeroute returned %d. first=0p%p, last=0p%p\n", + error, + first, + last); + if(first != NULL) { + ipsec_kfree_skb(first); + } + if(last != NULL) { + ipsec_kfree_skb(last); + } + SENDERR(-error); + } + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_addflow_parse: " + "calling makeroute.\n"); + + if ((error = ipsec_makeroute(&(extr->eroute->er_eaddr), + &(extr->eroute->er_emask), + extr->ips->ips_said, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_pid, + NULL, + &(extr->ips->ips_ident_s), + &(extr->ips->ips_ident_d)))) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_addflow_parse: " + "makeroute returned %d.\n", error); + SENDERR(-error); + } + if(first != NULL) { + KLIPS_PRINT(debug_eroute, + "klips_debug:pfkey_x_addflow_parse: " + "first=0p%p HOLD packet re-injected.\n", + first); + DEV_QUEUE_XMIT(first, first->dev, SOPRI_NORMAL); + } + if(last != NULL) { + KLIPS_PRINT(debug_eroute, + "klips_debug:pfkey_x_addflow_parse: " + "last=0p%p HOLD packet re-injected.\n", + last); + DEV_QUEUE_XMIT(last, last->dev, SOPRI_NORMAL); + } + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_addflow_parse: " + "makeroute call successful.\n"); + + if(!(pfkey_safe_build(error = pfkey_msg_hdr_build(&extensions_reply[0], + SADB_X_ADDFLOW, + satype, + 0, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_seq, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_pid), + extensions_reply) + && pfkey_safe_build(error = pfkey_sa_ref_build(&extensions_reply[SADB_EXT_SA], + SADB_EXT_SA, + extr->ips->ips_said.spi, + extr->ips->ips_replaywin, + extr->ips->ips_state, + extr->ips->ips_authalg, + extr->ips->ips_encalg, + extr->ips->ips_flags, + extr->ips->ips_ref), + extensions_reply) + && (extensions[SADB_EXT_ADDRESS_SRC] + ? pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_EXT_ADDRESS_SRC], + SADB_EXT_ADDRESS_SRC, + 0, /*extr->ips->ips_said.proto,*/ + 0, + extr->ips->ips_addr_s), + extensions_reply) : 1) + && (extensions[SADB_EXT_ADDRESS_DST] + ? pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_EXT_ADDRESS_DST], + SADB_EXT_ADDRESS_DST, + 0, /*extr->ips->ips_said.proto,*/ + 0, + extr->ips->ips_addr_d), + extensions_reply) : 1) + && pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_X_EXT_ADDRESS_SRC_FLOW], + SADB_X_EXT_ADDRESS_SRC_FLOW, + 0, /*extr->ips->ips_said.proto,*/ + 0, + (struct sockaddr*)&srcflow), + extensions_reply) + && pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_X_EXT_ADDRESS_DST_FLOW], + SADB_X_EXT_ADDRESS_DST_FLOW, + 0, /*extr->ips->ips_said.proto,*/ + 0, + (struct sockaddr*)&dstflow), + extensions_reply) + && pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_X_EXT_ADDRESS_SRC_MASK], + SADB_X_EXT_ADDRESS_SRC_MASK, + 0, /*extr->ips->ips_said.proto,*/ + 0, + (struct sockaddr*)&srcmask), + extensions_reply) + && pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_X_EXT_ADDRESS_DST_MASK], + SADB_X_EXT_ADDRESS_DST_MASK, + 0, /*extr->ips->ips_said.proto,*/ + 0, + (struct sockaddr*)&dstmask), + extensions_reply) + )) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_x_addflow_parse: " + "failed to build the x_addflow reply message extensions\n"); + SENDERR(-error); + } + + if((error = pfkey_msg_build(&pfkey_reply, extensions_reply, EXT_BITS_OUT))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_x_addflow_parse: " + "failed to build the x_addflow reply message\n"); + SENDERR(-error); + } + + for(pfkey_socketsp = pfkey_open_sockets; + pfkey_socketsp; + pfkey_socketsp = pfkey_socketsp->next) { + if((error = pfkey_upmsg(pfkey_socketsp->socketp, pfkey_reply))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_x_addflow_parse: " + "sending up x_addflow reply message for satype=%d(%s) to socket=0p%p failed with error=%d.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp, + error); + SENDERR(-error); + } + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_x_addflow_parse: " + "sending up x_addflow reply message for satype=%d(%s) (proto=%d) to socket=0p%p succeeded.\n", + satype, + satype2name(satype), + extr->ips->ips_said.proto, + pfkey_socketsp->socketp); + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_addflow_parse: " + "extr->ips cleaned up and freed.\n"); + + errlab: + if (pfkey_reply) { + pfkey_msg_free(&pfkey_reply); + } + pfkey_extensions_free(extensions_reply); + return error; +} + +DEBUG_NO_STATIC int +pfkey_x_delflow_parse(struct sock *sk, struct sadb_ext **extensions, struct pfkey_extracted_data* extr) +{ + int error = 0; +#ifdef CONFIG_KLIPS_DEBUG + char buf1[64], buf2[64]; +#endif /* CONFIG_KLIPS_DEBUG */ + struct sadb_ext *extensions_reply[SADB_EXT_MAX+1]; + struct sadb_msg *pfkey_reply = NULL; + struct socket_list *pfkey_socketsp; + uint8_t satype = ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_satype; + ip_address srcflow, dstflow, srcmask, dstmask; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_delflow_parse: .\n"); + + pfkey_extensions_init(extensions_reply); + + memset((caddr_t)&srcflow, 0, sizeof(srcflow)); + memset((caddr_t)&dstflow, 0, sizeof(dstflow)); + memset((caddr_t)&srcmask, 0, sizeof(srcmask)); + memset((caddr_t)&dstmask, 0, sizeof(dstmask)); + + if(!extr || !(extr->ips)) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_delflow_parse: " + "extr, or extr->ips is NULL, fatal\n"); + SENDERR(EINVAL); + } + + if(extr->ips->ips_flags & SADB_X_SAFLAGS_CLEARFLOW) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_delflow_parse: " + "CLEARFLOW flag set, calling cleareroutes.\n"); + if ((error = ipsec_cleareroutes())) + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_delflow_parse: " + "cleareroutes returned %d.\n", error); + SENDERR(-error); + } else { + struct sk_buff *first = NULL, *last = NULL; + + if(!(extr->eroute)) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_delflow_parse: " + "extr->eroute is NULL, fatal.\n"); + SENDERR(EINVAL); + } + + srcflow.u.v4.sin_family = AF_INET; + dstflow.u.v4.sin_family = AF_INET; + srcmask.u.v4.sin_family = AF_INET; + dstmask.u.v4.sin_family = AF_INET; + srcflow.u.v4.sin_addr = extr->eroute->er_eaddr.sen_ip_src; + dstflow.u.v4.sin_addr = extr->eroute->er_eaddr.sen_ip_dst; + srcmask.u.v4.sin_addr = extr->eroute->er_emask.sen_ip_src; + dstmask.u.v4.sin_addr = extr->eroute->er_emask.sen_ip_dst; + +#ifdef CONFIG_KLIPS_DEBUG + if (debug_pfkey) { + subnettoa(extr->eroute->er_eaddr.sen_ip_src, + extr->eroute->er_emask.sen_ip_src, 0, buf1, sizeof(buf1)); + subnettoa(extr->eroute->er_eaddr.sen_ip_dst, + extr->eroute->er_emask.sen_ip_dst, 0, buf2, sizeof(buf2)); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_delflow_parse: " + "calling breakeroute for %s->%s\n", + buf1, buf2); + } +#endif /* CONFIG_KLIPS_DEBUG */ + error = ipsec_breakroute(&(extr->eroute->er_eaddr), + &(extr->eroute->er_emask), + &first, &last); + if(error) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_delflow_parse: " + "breakeroute returned %d. first=0p%p, last=0p%p\n", + error, + first, + last); + } + if(first != NULL) { + ipsec_kfree_skb(first); + } + if(last != NULL) { + ipsec_kfree_skb(last); + } + if(error) { + SENDERR(-error); + } + } + + if(!(pfkey_safe_build(error = pfkey_msg_hdr_build(&extensions_reply[0], + SADB_X_DELFLOW, + satype, + 0, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_seq, + ((struct sadb_msg*)extensions[SADB_EXT_RESERVED])->sadb_msg_pid), + extensions_reply) + && pfkey_safe_build(error = pfkey_sa_ref_build(&extensions_reply[SADB_EXT_SA], + SADB_EXT_SA, + extr->ips->ips_said.spi, + extr->ips->ips_replaywin, + extr->ips->ips_state, + extr->ips->ips_authalg, + extr->ips->ips_encalg, + extr->ips->ips_flags, + extr->ips->ips_ref), + extensions_reply) + && pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_X_EXT_ADDRESS_SRC_FLOW], + SADB_X_EXT_ADDRESS_SRC_FLOW, + 0, /*extr->ips->ips_said.proto,*/ + 0, + (struct sockaddr*)&srcflow), + extensions_reply) + && pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_X_EXT_ADDRESS_DST_FLOW], + SADB_X_EXT_ADDRESS_DST_FLOW, + 0, /*extr->ips->ips_said.proto,*/ + 0, + (struct sockaddr*)&dstflow), + extensions_reply) + && pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_X_EXT_ADDRESS_SRC_MASK], + SADB_X_EXT_ADDRESS_SRC_MASK, + 0, /*extr->ips->ips_said.proto,*/ + 0, + (struct sockaddr*)&srcmask), + extensions_reply) + && pfkey_safe_build(error = pfkey_address_build(&extensions_reply[SADB_X_EXT_ADDRESS_DST_MASK], + SADB_X_EXT_ADDRESS_DST_MASK, + 0, /*extr->ips->ips_said.proto,*/ + 0, + (struct sockaddr*)&dstmask), + extensions_reply) + )) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_x_delflow_parse: " + "failed to build the x_delflow reply message extensions\n"); + SENDERR(-error); + } + + if((error = pfkey_msg_build(&pfkey_reply, extensions_reply, EXT_BITS_OUT))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_x_delflow_parse: " + "failed to build the x_delflow reply message\n"); + SENDERR(-error); + } + + for(pfkey_socketsp = pfkey_open_sockets; + pfkey_socketsp; + pfkey_socketsp = pfkey_socketsp->next) { + if((error = pfkey_upmsg(pfkey_socketsp->socketp, pfkey_reply))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_x_delflow_parse: " + "sending up x_delflow reply message for satype=%d(%s) to socket=0p%p failed with error=%d.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp, + error); + SENDERR(-error); + } + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_x_delflow_parse: " + "sending up x_delflow reply message for satype=%d(%s) to socket=0p%p succeeded.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp); + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_delflow_parse: " + "extr->ips cleaned up and freed.\n"); + + errlab: + if (pfkey_reply) { + pfkey_msg_free(&pfkey_reply); + } + pfkey_extensions_free(extensions_reply); + return error; +} + +DEBUG_NO_STATIC int +pfkey_x_msg_debug_parse(struct sock *sk, struct sadb_ext **extensions, struct pfkey_extracted_data* extr) +{ + int error = 0; + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_x_msg_debug_parse: .\n"); + +/* errlab:*/ + return error; +} + +/* pfkey_expire expects the ipsec_sa table to be locked before being called. */ +int +pfkey_expire(struct ipsec_sa *ipsp, int hard) +{ + struct sadb_ext *extensions[SADB_EXT_MAX+1]; + struct sadb_msg *pfkey_msg = NULL; + struct socket_list *pfkey_socketsp; + int error = 0; + uint8_t satype; + + pfkey_extensions_init(extensions); + + if(!(satype = proto2satype(ipsp->ips_said.proto))) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_expire: " + "satype lookup for protocol %d lookup failed.\n", + ipsp->ips_said.proto); + SENDERR(EINVAL); + } + + if(!pfkey_open_sockets) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_expire: " + "no sockets listening.\n"); + SENDERR(EPROTONOSUPPORT); + } + + if (!(pfkey_safe_build(error = pfkey_msg_hdr_build(&extensions[0], + SADB_EXPIRE, + satype, + 0, + ++pfkey_msg_seq, + 0), + extensions) + && pfkey_safe_build(error = pfkey_sa_ref_build(&extensions[SADB_EXT_SA], + SADB_EXT_SA, + ipsp->ips_said.spi, + ipsp->ips_replaywin, + ipsp->ips_state, + ipsp->ips_authalg, + ipsp->ips_encalg, + ipsp->ips_flags, + ipsp->ips_ref), + extensions) + && pfkey_safe_build(error = pfkey_lifetime_build(&extensions[SADB_EXT_LIFETIME_CURRENT], + SADB_EXT_LIFETIME_CURRENT, + ipsp->ips_life.ipl_allocations.ipl_count, + ipsp->ips_life.ipl_bytes.ipl_count, + ipsp->ips_life.ipl_addtime.ipl_count, + ipsp->ips_life.ipl_usetime.ipl_count, + ipsp->ips_life.ipl_packets.ipl_count), + extensions) + && (hard ? + pfkey_safe_build(error = pfkey_lifetime_build(&extensions[SADB_EXT_LIFETIME_HARD], + SADB_EXT_LIFETIME_HARD, + ipsp->ips_life.ipl_allocations.ipl_hard, + ipsp->ips_life.ipl_bytes.ipl_hard, + ipsp->ips_life.ipl_addtime.ipl_hard, + ipsp->ips_life.ipl_usetime.ipl_hard, + ipsp->ips_life.ipl_packets.ipl_hard), + extensions) + : pfkey_safe_build(error = pfkey_lifetime_build(&extensions[SADB_EXT_LIFETIME_SOFT], + SADB_EXT_LIFETIME_SOFT, + ipsp->ips_life.ipl_allocations.ipl_soft, + ipsp->ips_life.ipl_bytes.ipl_soft, + ipsp->ips_life.ipl_addtime.ipl_soft, + ipsp->ips_life.ipl_usetime.ipl_soft, + ipsp->ips_life.ipl_packets.ipl_soft), + extensions)) + && pfkey_safe_build(error = pfkey_address_build(&extensions[SADB_EXT_ADDRESS_SRC], + SADB_EXT_ADDRESS_SRC, + 0, /* ipsp->ips_said.proto, */ + 0, + ipsp->ips_addr_s), + extensions) + && pfkey_safe_build(error = pfkey_address_build(&extensions[SADB_EXT_ADDRESS_DST], + SADB_EXT_ADDRESS_DST, + 0, /* ipsp->ips_said.proto, */ + 0, + ipsp->ips_addr_d), + extensions))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_expire: " + "failed to build the expire message extensions\n"); + spin_unlock(&tdb_lock); + goto errlab; + } + + if ((error = pfkey_msg_build(&pfkey_msg, extensions, EXT_BITS_OUT))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_expire: " + "failed to build the expire message\n"); + SENDERR(-error); + } + + for(pfkey_socketsp = pfkey_open_sockets; + pfkey_socketsp; + pfkey_socketsp = pfkey_socketsp->next) { + if((error = pfkey_upmsg(pfkey_socketsp->socketp, pfkey_msg))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_expire: " + "sending up expire message for satype=%d(%s) to socket=0p%p failed with error=%d.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp, + error); + SENDERR(-error); + } + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_expire: " + "sending up expire message for satype=%d(%s) (proto=%d) to socket=0p%p succeeded.\n", + satype, + satype2name(satype), + ipsp->ips_said.proto, + pfkey_socketsp->socketp); + } + + errlab: + if (pfkey_msg) { + pfkey_msg_free(&pfkey_msg); + } + pfkey_extensions_free(extensions); + return error; +} + +int +pfkey_acquire(struct ipsec_sa *ipsp) +{ + struct sadb_ext *extensions[SADB_EXT_MAX+1]; + struct sadb_msg *pfkey_msg = NULL; + struct socket_list *pfkey_socketsp; + int error = 0; + struct sadb_comb comb[] = { + /* auth; encrypt; flags; */ + /* auth_minbits; auth_maxbits; encrypt_minbits; encrypt_maxbits; */ + /* reserved; soft_allocations; hard_allocations; soft_bytes; hard_bytes; */ + /* soft_addtime; hard_addtime; soft_usetime; hard_usetime; */ + /* soft_packets; hard_packets; */ + { SADB_AALG_MD5HMAC, SADB_EALG_3DESCBC, SADB_SAFLAGS_PFS, + 128, 128, 168, 168, + 0, 0, 0, 0, 0, + 57600, 86400, 57600, 86400, + 0, 0 }, + { SADB_AALG_SHA1HMAC, SADB_EALG_3DESCBC, SADB_SAFLAGS_PFS, + 160, 160, 168, 168, + 0, 0, 0, 0, 0, + 57600, 86400, 57600, 86400, + 0, 0 } + }; + + /* XXX This should not be hard-coded. It should be taken from the spdb */ + uint8_t satype = SADB_SATYPE_ESP; + + pfkey_extensions_init(extensions); + + if((satype == 0) || (satype > SADB_SATYPE_MAX)) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_acquire: " + "SAtype=%d unspecified or unknown.\n", + satype); + SENDERR(EINVAL); + } + + if(!(pfkey_registered_sockets[satype])) { + KLIPS_PRINT(1|debug_pfkey, "klips_debug:pfkey_acquire: " + "no sockets registered for SAtype=%d(%s).\n", + satype, + satype2name(satype)); + SENDERR(EPROTONOSUPPORT); + } + + if (!(pfkey_safe_build(error = pfkey_msg_hdr_build(&extensions[0], + SADB_ACQUIRE, + satype, + 0, + ++pfkey_msg_seq, + 0), + extensions) + && pfkey_safe_build(error = pfkey_address_build(&extensions[SADB_EXT_ADDRESS_SRC], + SADB_EXT_ADDRESS_SRC, + ipsp->ips_transport_protocol, + 0, + ipsp->ips_addr_s), + extensions) + && pfkey_safe_build(error = pfkey_address_build(&extensions[SADB_EXT_ADDRESS_DST], + SADB_EXT_ADDRESS_DST, + ipsp->ips_transport_protocol, + 0, + ipsp->ips_addr_d), + extensions) +#if 0 + && (ipsp->ips_addr_p + ? pfkey_safe_build(error = pfkey_address_build(&extensions[SADB_EXT_ADDRESS_PROXY], + SADB_EXT_ADDRESS_PROXY, + ipsp->ips_transport_protocol, + 0, + ipsp->ips_addr_p), + extensions) : 1) +#endif + && (ipsp->ips_ident_s.type != SADB_IDENTTYPE_RESERVED + ? pfkey_safe_build(error = pfkey_ident_build(&extensions[SADB_EXT_IDENTITY_SRC], + SADB_EXT_IDENTITY_SRC, + ipsp->ips_ident_s.type, + ipsp->ips_ident_s.id, + ipsp->ips_ident_s.len, + ipsp->ips_ident_s.data), + extensions) : 1) + + && (ipsp->ips_ident_d.type != SADB_IDENTTYPE_RESERVED + ? pfkey_safe_build(error = pfkey_ident_build(&extensions[SADB_EXT_IDENTITY_DST], + SADB_EXT_IDENTITY_DST, + ipsp->ips_ident_d.type, + ipsp->ips_ident_d.id, + ipsp->ips_ident_d.len, + ipsp->ips_ident_d.data), + extensions) : 1) +#if 0 + /* FIXME: This won't work yet because I have not finished + it. */ + && (ipsp->ips_sens_ + ? pfkey_safe_build(error = pfkey_sens_build(&extensions[SADB_EXT_SENSITIVITY], + ipsp->ips_sens_dpd, + ipsp->ips_sens_sens_level, + ipsp->ips_sens_sens_len, + ipsp->ips_sens_sens_bitmap, + ipsp->ips_sens_integ_level, + ipsp->ips_sens_integ_len, + ipsp->ips_sens_integ_bitmap), + extensions) : 1) +#endif + && pfkey_safe_build(error = pfkey_prop_build(&extensions[SADB_EXT_PROPOSAL], + 64, /* replay */ + sizeof(comb)/sizeof(struct sadb_comb), + &(comb[0])), + extensions) + )) { + KLIPS_PRINT(1|debug_pfkey, "klips_debug:pfkey_acquire: " + "failed to build the acquire message extensions\n"); + SENDERR(-error); + } + + if ((error = pfkey_msg_build(&pfkey_msg, extensions, EXT_BITS_OUT))) { + KLIPS_PRINT(1|debug_pfkey, "klips_debug:pfkey_acquire: " + "failed to build the acquire message\n"); + SENDERR(-error); + } + +#if KLIPS_PFKEY_ACQUIRE_LOSSAGE > 0 + if(sysctl_ipsec_regress_pfkey_lossage) { + return(0); + } +#endif + + /* this should go to all registered sockets for that satype only */ + for(pfkey_socketsp = pfkey_registered_sockets[satype]; + pfkey_socketsp; + pfkey_socketsp = pfkey_socketsp->next) { + if((error = pfkey_upmsg(pfkey_socketsp->socketp, pfkey_msg))) { + KLIPS_PRINT(1|debug_pfkey, "klips_debug:pfkey_acquire: " + "sending up acquire message for satype=%d(%s) to socket=0p%p failed with error=%d.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp, + error); + SENDERR(-error); + } + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_acquire: " + "sending up acquire message for satype=%d(%s) to socket=0p%p succeeded.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp); + } + + errlab: + if (pfkey_msg) { + pfkey_msg_free(&pfkey_msg); + } + pfkey_extensions_free(extensions); + return error; +} + +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL +int +pfkey_nat_t_new_mapping(struct ipsec_sa *ipsp, struct sockaddr *ipaddr, + __u16 sport) +{ + struct sadb_ext *extensions[SADB_EXT_MAX+1]; + struct sadb_msg *pfkey_msg = NULL; + struct socket_list *pfkey_socketsp; + int error = 0; + uint8_t satype = (ipsp->ips_said.proto==IPPROTO_ESP) ? SADB_SATYPE_ESP : 0; + + /* Construct SADB_X_NAT_T_NEW_MAPPING message */ + + pfkey_extensions_init(extensions); + + if((satype == 0) || (satype > SADB_SATYPE_MAX)) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_nat_t_new_mapping: " + "SAtype=%d unspecified or unknown.\n", + satype); + SENDERR(EINVAL); + } + + if(!(pfkey_registered_sockets[satype])) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_nat_t_new_mapping: " + "no sockets registered for SAtype=%d(%s).\n", + satype, + satype2name(satype)); + SENDERR(EPROTONOSUPPORT); + } + + if (!(pfkey_safe_build + (error = pfkey_msg_hdr_build(&extensions[0], SADB_X_NAT_T_NEW_MAPPING, + satype, 0, ++pfkey_msg_seq, 0), extensions) + /* SA */ + && pfkey_safe_build + (error = pfkey_sa_build(&extensions[SADB_EXT_SA], + SADB_EXT_SA, ipsp->ips_said.spi, 0, 0, 0, 0, 0), extensions) + /* ADDRESS_SRC = old addr */ + && pfkey_safe_build + (error = pfkey_address_build(&extensions[SADB_EXT_ADDRESS_SRC], + SADB_EXT_ADDRESS_SRC, ipsp->ips_said.proto, 0, ipsp->ips_addr_s), + extensions) + /* NAT_T_SPORT = old port */ + && pfkey_safe_build + (error = pfkey_x_nat_t_port_build(&extensions[SADB_X_EXT_NAT_T_SPORT], + SADB_X_EXT_NAT_T_SPORT, ipsp->ips_natt_sport), extensions) + /* ADDRESS_DST = new addr */ + && pfkey_safe_build + (error = pfkey_address_build(&extensions[SADB_EXT_ADDRESS_DST], + SADB_EXT_ADDRESS_DST, ipsp->ips_said.proto, 0, ipaddr), extensions) + /* NAT_T_DPORT = new port */ + && pfkey_safe_build + (error = pfkey_x_nat_t_port_build(&extensions[SADB_X_EXT_NAT_T_DPORT], + SADB_X_EXT_NAT_T_DPORT, sport), extensions) + )) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_nat_t_new_mapping: " + "failed to build the nat_t_new_mapping message extensions\n"); + SENDERR(-error); + } + + if ((error = pfkey_msg_build(&pfkey_msg, extensions, EXT_BITS_OUT))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_nat_t_new_mapping: " + "failed to build the nat_t_new_mapping message\n"); + SENDERR(-error); + } + + /* this should go to all registered sockets for that satype only */ + for(pfkey_socketsp = pfkey_registered_sockets[satype]; + pfkey_socketsp; + pfkey_socketsp = pfkey_socketsp->next) { + if((error = pfkey_upmsg(pfkey_socketsp->socketp, pfkey_msg))) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_nat_t_new_mapping: " + "sending up nat_t_new_mapping message for satype=%d(%s) to socket=%p failed with error=%d.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp, + error); + SENDERR(-error); + } + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_nat_t_new_mapping: " + "sending up nat_t_new_mapping message for satype=%d(%s) to socket=%p succeeded.\n", + satype, + satype2name(satype), + pfkey_socketsp->socketp); + } + + errlab: + if (pfkey_msg) { + pfkey_msg_free(&pfkey_msg); + } + pfkey_extensions_free(extensions); + return error; +} + +DEBUG_NO_STATIC int +pfkey_x_nat_t_new_mapping_parse(struct sock *sk, struct sadb_ext **extensions, struct pfkey_extracted_data* extr) +{ + /* SADB_X_NAT_T_NEW_MAPPING not used in kernel */ + return -EINVAL; +} +#endif + +DEBUG_NO_STATIC int (*ext_processors[SADB_EXT_MAX+1])(struct sadb_ext *pfkey_ext, struct pfkey_extracted_data* extr) = +{ + NULL, /* pfkey_msg_process, */ + pfkey_sa_process, + pfkey_lifetime_process, + pfkey_lifetime_process, + pfkey_lifetime_process, + pfkey_address_process, + pfkey_address_process, + pfkey_address_process, + pfkey_key_process, + pfkey_key_process, + pfkey_ident_process, + pfkey_ident_process, + pfkey_sens_process, + pfkey_prop_process, + pfkey_supported_process, + pfkey_supported_process, + pfkey_spirange_process, + pfkey_x_kmprivate_process, + pfkey_x_satype_process, + pfkey_sa_process, + pfkey_address_process, + pfkey_address_process, + pfkey_address_process, + pfkey_address_process, + pfkey_address_process, + pfkey_x_debug_process, + pfkey_x_protocol_process +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL + , + pfkey_x_nat_t_type_process, + pfkey_x_nat_t_port_process, + pfkey_x_nat_t_port_process, + pfkey_address_process +#endif +}; + + +DEBUG_NO_STATIC int (*msg_parsers[SADB_MAX +1])(struct sock *sk, struct sadb_ext *extensions[], struct pfkey_extracted_data* extr) + = +{ + NULL, /* RESERVED */ + pfkey_getspi_parse, + pfkey_update_parse, + pfkey_add_parse, + pfkey_delete_parse, + pfkey_get_parse, + pfkey_acquire_parse, + pfkey_register_parse, + pfkey_expire_parse, + pfkey_flush_parse, + pfkey_dump_parse, + pfkey_x_promisc_parse, + pfkey_x_pchange_parse, + pfkey_x_grpsa_parse, + pfkey_x_addflow_parse, + pfkey_x_delflow_parse, + pfkey_x_msg_debug_parse +#ifdef CONFIG_IPSEC_NAT_TRAVERSAL + , pfkey_x_nat_t_new_mapping_parse +#endif +}; + +int +pfkey_build_reply(struct sadb_msg *pfkey_msg, + struct pfkey_extracted_data *extr, + struct sadb_msg **pfkey_reply) +{ + struct sadb_ext *extensions[SADB_EXT_MAX+1]; + int error = 0; + int msg_type = pfkey_msg->sadb_msg_type; + int seq = pfkey_msg->sadb_msg_seq; + + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_build_reply: " + "building reply with type: %d\n", + msg_type); + pfkey_extensions_init(extensions); + if (!extr || !extr->ips) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_build_reply: " + "bad ipsec_sa passed\n"); + return EINVAL; + } + error = pfkey_safe_build(pfkey_msg_hdr_build(&extensions[0], + msg_type, + proto2satype(extr->ips->ips_said.proto), + 0, + seq, + pfkey_msg->sadb_msg_pid), + extensions) && + (!(extensions_bitmaps[EXT_BITS_OUT][EXT_BITS_REQ][msg_type] & + 1 << SADB_EXT_SA) + || pfkey_safe_build(pfkey_sa_ref_build(&extensions[SADB_EXT_SA], + SADB_EXT_SA, + extr->ips->ips_said.spi, + extr->ips->ips_replaywin, + extr->ips->ips_state, + extr->ips->ips_authalg, + extr->ips->ips_encalg, + extr->ips->ips_flags, + extr->ips->ips_ref), + extensions)) && + (!(extensions_bitmaps[EXT_BITS_OUT][EXT_BITS_REQ][msg_type] & + 1 << SADB_EXT_LIFETIME_CURRENT) + || pfkey_safe_build(pfkey_lifetime_build(&extensions + [SADB_EXT_LIFETIME_CURRENT], + SADB_EXT_LIFETIME_CURRENT, + extr->ips->ips_life.ipl_allocations.ipl_count, + extr->ips->ips_life.ipl_bytes.ipl_count, + extr->ips->ips_life.ipl_addtime.ipl_count, + extr->ips->ips_life.ipl_usetime.ipl_count, + extr->ips->ips_life.ipl_packets.ipl_count), + extensions)) && + (!(extensions_bitmaps[EXT_BITS_OUT][EXT_BITS_REQ][msg_type] & + 1 << SADB_EXT_ADDRESS_SRC) + || pfkey_safe_build(pfkey_address_build(&extensions[SADB_EXT_ADDRESS_SRC], + SADB_EXT_ADDRESS_SRC, + extr->ips->ips_said.proto, + 0, + extr->ips->ips_addr_s), + extensions)) && + (!(extensions_bitmaps[EXT_BITS_OUT][EXT_BITS_REQ][msg_type] & + 1 << SADB_EXT_ADDRESS_DST) + || pfkey_safe_build(pfkey_address_build(&extensions[SADB_EXT_ADDRESS_DST], + SADB_EXT_ADDRESS_DST, + extr->ips->ips_said.proto, + 0, + extr->ips->ips_addr_d), + extensions)); + + if (error == 0) { + KLIPS_PRINT(debug_pfkey, "klips_debug:pfkey_build_reply: " + "building extensions failed\n"); + return EINVAL; + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_build_reply: " + "built extensions, proceed to build the message\n"); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_build_reply: " + "extensions[1]=0p%p\n", + extensions[1]); + error = pfkey_msg_build(pfkey_reply, extensions, EXT_BITS_OUT); + pfkey_extensions_free(extensions); + + return error; +} + +int +pfkey_msg_interp(struct sock *sk, struct sadb_msg *pfkey_msg, + struct sadb_msg **pfkey_reply) +{ + int error = 0; + int i; + struct sadb_ext *extensions[SADB_EXT_MAX+1]; + struct pfkey_extracted_data extr = {NULL, NULL, NULL}; + + pfkey_extensions_init(extensions); + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_msg_interp: " + "parsing message ver=%d, type=%d, errno=%d, satype=%d(%s), len=%d, res=%d, seq=%d, pid=%d.\n", + pfkey_msg->sadb_msg_version, + pfkey_msg->sadb_msg_type, + pfkey_msg->sadb_msg_errno, + pfkey_msg->sadb_msg_satype, + satype2name(pfkey_msg->sadb_msg_satype), + pfkey_msg->sadb_msg_len, + pfkey_msg->sadb_msg_reserved, + pfkey_msg->sadb_msg_seq, + pfkey_msg->sadb_msg_pid); + + extr.ips = ipsec_sa_alloc(&error); /* pass in error var by pointer */ + if(extr.ips == NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_msg_interp: " + "memory allocation error.\n"); + SENDERR(-error); + } + + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_msg_interp: " + "allocated extr->ips=0p%p.\n", + extr.ips); + + if(pfkey_msg->sadb_msg_satype > SADB_SATYPE_MAX) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_msg_interp: " + "satype %d > max %d\n", + pfkey_msg->sadb_msg_satype, + SADB_SATYPE_MAX); + SENDERR(EINVAL); + } + + switch(pfkey_msg->sadb_msg_type) { + case SADB_GETSPI: + case SADB_UPDATE: + case SADB_ADD: + case SADB_DELETE: + case SADB_X_GRPSA: + case SADB_X_ADDFLOW: + if(!(extr.ips->ips_said.proto = satype2proto(pfkey_msg->sadb_msg_satype))) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_msg_interp: " + "satype %d lookup failed.\n", + pfkey_msg->sadb_msg_satype); + SENDERR(EINVAL); + } else { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_msg_interp: " + "satype %d lookups to proto=%d.\n", + pfkey_msg->sadb_msg_satype, + extr.ips->ips_said.proto); + } + break; + default: + break; + } + + /* The NULL below causes the default extension parsers to be used */ + /* Parse the extensions */ + if((error = pfkey_msg_parse(pfkey_msg, NULL, extensions, EXT_BITS_IN))) + { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_msg_interp: " + "message parsing failed with error %d.\n", + error); + SENDERR(-error); + } + + /* Process the extensions */ + for(i=1; i <= SADB_EXT_MAX;i++) { + if(extensions[i] != NULL) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_msg_interp: " + "processing ext %d 0p%p with processor 0p%p.\n", + i, extensions[i], ext_processors[i]); + if((error = ext_processors[i](extensions[i], &extr))) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_msg_interp: " + "extension processing for type %d failed with error %d.\n", + i, + error); + SENDERR(-error); + } + + } + + } + + /* Parse the message types */ + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_msg_interp: " + "parsing message type %d(%s) with msg_parser 0p%p.\n", + pfkey_msg->sadb_msg_type, + pfkey_v2_sadb_type_string(pfkey_msg->sadb_msg_type), + msg_parsers[pfkey_msg->sadb_msg_type]); + if((error = msg_parsers[pfkey_msg->sadb_msg_type](sk, extensions, &extr))) { + KLIPS_PRINT(debug_pfkey, + "klips_debug:pfkey_msg_interp: " + "message parsing failed with error %d.\n", + error); + SENDERR(-error); + } + +#if 0 + error = pfkey_build_reply(pfkey_msg, &extr, pfkey_reply); + if (error) { + *pfkey_reply = NULL; + } +#endif + errlab: + if(extr.ips != NULL) { + ipsec_sa_wipe(extr.ips); + } + if(extr.ips2 != NULL) { + ipsec_sa_wipe(extr.ips2); + } + if (extr.eroute != NULL) { + kfree(extr.eroute); + } + return(error); +} + +/* + * $Log: pfkey_v2_parser.c,v $ + * Revision 1.134.2.2 2006/10/06 21:39:26 paul + * Fix for 2.6.18+ only include linux/config.h if AUTOCONF_INCLUDED is not + * set. This is defined through autoconf.h which is included through the + * linux kernel build macros. + * + * Revision 1.134.2.1 2006/05/01 14:37:25 mcr + * ip_chk_addr -> inet_addr_type for more direct 2.4/2.6 support. + * + * Revision 1.134 2005/05/11 01:48:20 mcr + * removed "poor-man"s OOP in favour of proper C structures. + * + * Revision 1.133 2005/04/29 05:10:22 mcr + * removed from extraenous includes to make unit testing easier. + * + * Revision 1.132 2005/04/14 20:56:24 mcr + * moved (pfkey_)ipsec_sa_init to ipsec_sa.c. + * + * Revision 1.131 2005/01/26 00:50:35 mcr + * adjustment of confusion of CONFIG_IPSEC_NAT vs CONFIG_KLIPS_NAT, + * and make sure that NAT_TRAVERSAL is set as well to match + * userspace compiles of code. + * + * Revision 1.130 2004/09/08 17:21:36 ken + * Rename MD5* -> osMD5 functions to prevent clashes with other symbols exported by kernel modules (CIFS in 2.6 initiated this) + * + * Revision 1.129 2004/09/06 18:36:30 mcr + * if a protocol can not be found, then log it. This is not + * debugging. + * + * Revision 1.128 2004/08/21 00:45:19 mcr + * CONFIG_KLIPS_NAT was wrong, also need to include udp.h. + * + * Revision 1.127 2004/08/20 21:45:45 mcr + * CONFIG_KLIPS_NAT_TRAVERSAL is not used in an attempt to + * be 26sec compatible. But, some defines where changed. + * + * Revision 1.126 2004/08/17 03:27:23 mcr + * klips 2.6 edits. + * + * Revision 1.125 2004/08/04 15:57:07 mcr + * moved des .h files to include/des/ * + * included 2.6 protocol specific things + * started at NAT-T support, but it will require a kernel patch. + * + * Revision 1.124 2004/07/10 19:11:18 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.123 2004/04/06 02:49:26 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.122.2.2 2004/04/05 04:30:46 mcr + * patches for alg-branch to compile/work with 2.x openswan + * + * Revision 1.122.2.1 2003/12/22 15:25:52 jjo + * . Merged algo-0.8.1-rc11-test1 into alg-branch + * + * Revision 1.122 2003/12/10 01:14:27 mcr + * NAT-traversal patches to KLIPS. + * + * Revision 1.121 2003/10/31 02:27:55 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.120.4.2 2003/10/29 01:30:41 mcr + * elimited "struct sa_id". + * + * Revision 1.120.4.1 2003/09/21 13:59:56 mcr + * pre-liminary X.509 patch - does not yet pass tests. + * + * Revision 1.120 2003/04/03 17:38:09 rgb + * Centralised ipsec_kfree_skb and ipsec_dev_{get,put}. + * + * Revision 1.119 2003/02/06 01:52:37 rgb + * Removed no longer relevant comment + * + * Revision 1.118 2003/01/30 02:32:44 rgb + * + * Transmit error code through to caller from callee for better diagnosis of problems. + * + * Revision 1.117 2003/01/16 18:48:13 rgb + * + * Fixed sign bug in error return from an sa allocation call in + * pfkey_msg_interp. + * + * Revision 1.116 2002/10/17 16:38:01 rgb + * Change pfkey_alloc_eroute() to never static since its consumers + * have been moved outside the file. + * + * Revision 1.115 2002/10/12 23:11:53 dhr + * + * [KenB + DHR] more 64-bit cleanup + * + * Revision 1.114 2002/10/05 05:02:58 dhr + * + * C labels go on statements + * + * Revision 1.113 2002/09/30 19:11:22 rgb + * Turn on debugging for upgoing acquire messages to test for reliability. + * + * Revision 1.112 2002/09/20 15:41:16 rgb + * Switch from pfkey_alloc_ipsec_sa() to ipsec_sa_alloc(). + * Added sadb_x_sa_ref to struct sadb_sa. + * Added ref parameter to pfkey_sa_build(). + * + * Revision 1.111 2002/09/20 05:02:08 rgb + * Added memory allocation debugging. + * Convert to switch to divulge hmac keys for debugging. + * Added text labels to elucidate numeric values presented. + * + * Revision 1.110 2002/08/03 18:03:05 mcr + * loop that checks for SPI's to have been already linked + * fails to actually step to next pointer, but continuously + * resets to head of list. Wrong pointer used. + * test east-icmp-02 revealed this. + * + * Revision 1.109 2002/07/26 08:48:31 rgb + * Added SA ref table code. + * + * Revision 1.108 2002/05/27 18:55:03 rgb + * Remove final vistiges of tdb references via IPSEC_KLIPS1_COMPAT. + * + * Revision 1.107 2002/05/23 07:16:08 rgb + * Added ipsec_sa_put() for releasing an ipsec_sa refcount. + * Pointer clean-up. + * Added refcount code. + * + * Revision 1.106 2002/05/14 02:34:13 rgb + * Converted reference from ipsec_sa_put to ipsec_sa_add to avoid confusion + * with "put" usage in the kernel. + * Change all references to tdb, TDB or Tunnel Descriptor Block to ips, + * ipsec_sa or ipsec_sa. + * Moved all the extension parsing functions to pfkey_v2_ext_process.c. + * + * Revision 1.105 2002/04/24 07:55:32 mcr + * #include patches and Makefiles for post-reorg compilation. + * + * Revision 1.104 2002/04/24 07:36:34 mcr + * Moved from ./klips/net/ipsec/pfkey_v2_parser.c,v + * + * Revision 1.103 2002/04/20 00:12:25 rgb + * Added esp IV CBC attack fix, disabled. + * + * Revision 1.102 2002/03/08 01:15:17 mcr + * put some internal structure only debug messages behind + * && sysctl_ipsec_debug_verbose. + * + * Revision 1.101 2002/01/29 17:17:57 mcr + * moved include of ipsec_param.h to after include of linux/kernel.h + * otherwise, it seems that some option that is set in ipsec_param.h + * screws up something subtle in the include path to kernel.h, and + * it complains on the snprintf() prototype. + * + * Revision 1.100 2002/01/29 04:00:54 mcr + * more excise of kversions.h header. + * + * Revision 1.99 2002/01/29 02:13:19 mcr + * introduction of ipsec_kversion.h means that include of + * ipsec_param.h must preceed any decisions about what files to + * include to deal with differences in kernel source. + * + * Revision 1.98 2002/01/12 02:57:57 mcr + * first regression test causes acquire messages to be lost + * 100% of the time. This is to help testing of pluto. + * + * Revision 1.97 2001/11/26 09:23:52 rgb + * Merge MCR's ipsec_sa, eroute, proc and struct lifetime changes. + * + * Revision 1.93.2.4 2001/10/23 04:20:27 mcr + * parity was forced on wrong structure! prototypes help here. + * + * Revision 1.93.2.3 2001/10/22 21:14:59 mcr + * include des.h, removed phony prototypes and fixed calling + * conventions to match real prototypes. + * + * Revision 1.93.2.2 2001/10/15 05:39:03 mcr + * %08lx is not the right format for u32. Use %08x. 64-bit safe? ha. + * + * Revision 1.93.2.1 2001/09/25 02:30:14 mcr + * struct tdb -> struct ipsec_sa. + * use new lifetime structure. common format routines for debug. + * + * Revision 1.96 2001/11/06 20:47:54 rgb + * Fixed user context call to ipsec_dev_start_xmit() bug. Call + * dev_queue_xmit() instead. + * + * Revision 1.95 2001/11/06 19:47:46 rgb + * Added packet parameter to lifetime and comb structures. + * + * Revision 1.94 2001/10/18 04:45:23 rgb + * 2.4.9 kernel deprecates linux/malloc.h in favour of linux/slab.h, + * lib/freeswan.h version macros moved to lib/kversions.h. + * Other compiler directive cleanups. + * + * Revision 1.93 2001/09/20 15:32:59 rgb + * Min/max cleanup. + * + * Revision 1.92 2001/09/19 16:35:48 rgb + * PF_KEY ident fix for getspi from NetCelo (puttdb duplication). + * + * Revision 1.91 2001/09/15 16:24:06 rgb + * Re-inject first and last HOLD packet when an eroute REPLACE is done. + * + * Revision 1.90 2001/09/14 16:58:38 rgb + * Added support for storing the first and last packets through a HOLD. + * + * Revision 1.89 2001/09/08 21:14:07 rgb + * Added pfkey ident extension support for ISAKMPd. (NetCelo) + * Better state coherency (error management) between pf_key and IKE daemon. + * (NetCelo) + * + * Revision 1.88 2001/08/27 19:42:44 rgb + * Fix memory leak of encrypt and auth structs in pfkey register. + * + * Revision 1.87 2001/07/06 19:50:46 rgb + * Removed unused debugging code. + * Added inbound policy checking code for IPIP SAs. + * + * Revision 1.86 2001/06/20 06:26:04 rgb + * Changed missing SA errors from EEXIST to ENOENT and added debug output + * for already linked SAs. + * + * Revision 1.85 2001/06/15 04:57:02 rgb + * Remove single error return condition check and check for all errors in + * the case of a replace eroute delete operation. This means that + * applications must expect to be deleting something before replacing it + * and if nothing is found, complain. + * + * Revision 1.84 2001/06/14 19:35:12 rgb + * Update copyright date. + * + * Revision 1.83 2001/06/12 00:03:19 rgb + * Silence debug set/unset under normal conditions. + * + * Revision 1.82 2001/05/30 08:14:04 rgb + * Removed vestiges of esp-null transforms. + * + * Revision 1.81 2001/05/27 06:12:12 rgb + * Added structures for pid, packet count and last access time to eroute. + * Added packet count to beginning of /proc/net/ipsec_eroute. + * + * Revision 1.80 2001/05/03 19:43:59 rgb + * Check error return codes for all build function calls. + * Standardise on SENDERR() macro. + * + * Revision 1.79 2001/04/20 21:09:16 rgb + * Cleaned up fixed tdbwipes. + * Free pfkey_reply and clean up extensions_reply for grpsa, addflow and + * delflow (Per Cederqvist) plugging memleaks. + * + * Revision 1.78 2001/04/19 19:02:39 rgb + * Fixed extr.tdb freeing, stealing it for getspi, update and add. + * Refined a couple of spinlocks, fixed the one in update. + * + * Revision 1.77 2001/04/18 20:26:16 rgb + * Wipe/free eroute and both tdbs from extr at end of pfkey_msg_interp() + * instead of inside each message type parser. This fixes two memleaks. + * + * Revision 1.76 2001/04/17 23:51:18 rgb + * Quiet down pfkey_x_debug_process(). + * + * Revision 1.75 2001/03/29 01:55:05 rgb + * Fixed pfkey key init memleak. + * Fixed pfkey encryption key debug output. + * + * Revision 1.74 2001/03/27 05:29:14 rgb + * Debug output cleanup/silencing. + * + * Revision 1.73 2001/02/28 05:03:28 rgb + * Clean up and rationalise startup messages. + * + * Revision 1.72 2001/02/27 22:24:56 rgb + * Re-formatting debug output (line-splitting, joining, 1arg/line). + * Check for satoa() return codes. + * + * Revision 1.71 2001/02/27 06:59:30 rgb + * Added satype2name() conversions most places satype is debug printed. + * + * Revision 1.70 2001/02/26 22:37:08 rgb + * Fixed 'unknown proto' INT bug in new code. + * Added satype to protocol debugging instrumentation. + * + * Revision 1.69 2001/02/26 19:57:51 rgb + * Re-formatted debug output (split lines, consistent spacing). + * Fixed as yet undetected FLUSH bug which called ipsec_tdbcleanup() + * with an satype instead of proto. + * Checked for satype consistency and fixed minor bugs. + * Fixed undetected ungrpspi bug that tried to upmsg a second tdb. + * Check for satype sanity in pfkey_expire(). + * Added satype sanity check to addflow. + * + * Revision 1.68 2001/02/12 23:14:40 rgb + * Remove double spin lock in pfkey_expire(). + * + * Revision 1.67 2001/01/31 19:23:40 rgb + * Fixed double-unlock bug introduced by grpsa upmsg (found by Lars Heete). + * + * Revision 1.66 2001/01/29 22:20:04 rgb + * Fix minor add upmsg lifetime bug. + * + * Revision 1.65 2001/01/24 06:12:33 rgb + * Fixed address extension compile bugs just introduced. + * + * Revision 1.64 2001/01/24 00:31:15 rgb + * Added upmsg for addflow/delflow. + * + * Revision 1.63 2001/01/23 22:02:55 rgb + * Added upmsg to x_grpsa. + * Fixed lifetimes extentions to add/update/get upmsg. + * + * Revision 1.62 2000/11/30 21:47:51 rgb + * Fix error return bug after returning from pfkey_tdb_init(). + * + * Revision 1.61 2000/11/17 18:10:29 rgb + * Fixed bugs mostly relating to spirange, to treat all spi variables as + * network byte order since this is the way PF_KEYv2 stored spis. + * + * Revision 1.60 2000/11/06 04:34:53 rgb + * Changed non-exported functions to DEBUG_NO_STATIC. + * Add Svenning's adaptive content compression. + * Ditched spin_lock_irqsave in favour of spin_lock/_bh. + * Fixed double unlock bug (Svenning). + * Fixed pfkey_msg uninitialized bug in pfkey_{expire,acquire}(). + * Fixed incorrect extension type (prop) in pfkey)acquire(). + * + * Revision 1.59 2000/10/11 15:25:12 rgb + * Fixed IPCOMP disabled compile bug. + * + * Revision 1.58 2000/10/11 14:54:03 rgb + * Fixed pfkey_acquire() satype to SADB_SATYPE_ESP and removed pfkey + * protocol violations of setting pfkey_address_build() protocol parameter + * to non-zero except in the case of pfkey_acquire(). + * + * Revision 1.57 2000/10/10 20:10:18 rgb + * Added support for debug_ipcomp and debug_verbose to klipsdebug. + * + * Revision 1.56 2000/10/06 20:24:36 rgb + * Fixes to pfkey_acquire to initialize extensions[] and use correct + * ipproto. + * + * Revision 1.55 2000/10/03 03:20:57 rgb + * Added brackets to get a?b:c scope right for pfkey_register reply. + * + * Revision 1.54 2000/09/29 19:49:30 rgb + * As-yet-unused-bits cleanup. + * + * Revision 1.53 2000/09/28 00:35:45 rgb + * Padded SATYPE printout in pfkey_register for vertical alignment. + * + * Revision 1.52 2000/09/20 16:21:58 rgb + * Cleaned up ident string alloc/free. + * + * Revision 1.51 2000/09/20 04:04:20 rgb + * Changed static functions to DEBUG_NO_STATIC to reveal function names in + * oopsen. + * + * Revision 1.50 2000/09/16 01:10:53 rgb + * Fixed unused var warning with debug off. + * + * Revision 1.49 2000/09/15 11:37:02 rgb + * Merge in heavily modified Svenning Soerensen's + * IPCOMP zlib deflate code. + * + * Revision 1.48 2000/09/15 04:57:57 rgb + * Cleaned up existing IPCOMP code before svenning addition. + * Initialize pfkey_reply and extensions_reply in case of early error in + * message parsing functions (thanks Kai!). + * + * Revision 1.47 2000/09/13 08:02:56 rgb + * Added KMd registration notification. + * + * Revision 1.46 2000/09/12 22:35:36 rgb + * Restructured to remove unused extensions from CLEARFLOW messages. + * + * Revision 1.45 2000/09/12 03:24:23 rgb + * Converted #if0 debugs to sysctl. + * + * Revision 1.44 2000/09/09 06:38:39 rgb + * Correct SADB message type for update, add and delete. + * + * Revision 1.43 2000/09/08 19:19:56 rgb + * Change references from DEBUG_IPSEC to CONFIG_IPSEC_DEBUG. + * Removed all references to CONFIG_IPSEC_PFKEYv2. + * Put in sanity checks in most msg type parsers to catch invalid satypes + * and empty socket lists. + * Moved spin-locks in pfkey_get_parse() to simplify. + * Added pfkey_acquire(). + * Added upwards messages to update, add, delete, acquire_parse, + * expire_parse and flush. + * Fix pfkey_prop_build() parameter to be only single indirection. + * Changed all replies to use pfkey_reply. + * Check return code on puttdb() and deltdbchain() in getspi, update, + * add, delete. + * Fixed up all pfkey replies to open and registered sockets. + * + * Revision 1.42 2000/09/01 18:50:26 rgb + * Added a supported algorithms array lists, one per satype and registered + * existing algorithms. + * Fixed pfkey_list_{insert,remove}_{socket,support}() to allow change to + * list. + * Only send pfkey_expire() messages to sockets registered for that satype. + * Added reply to pfkey_getspi_parse(). + * Added reply to pfkey_get_parse(). + * Fixed debug output label bug in pfkey_lifetime_process(). + * Cleaned up pfkey_sa_process a little. + * Moved pfkey_safe_build() above message type parsers to make it available + * for creating replies. + * Added comments for future work in pfkey_acquire_parse(). + * Fleshed out guts of pfkey_register_parse(). + * + * Revision 1.41 2000/08/24 16:58:11 rgb + * Fixed key debugging variables. + * Fixed error return code for a failed search. + * Changed order of pfkey_get operations. + * + * Revision 1.40 2000/08/21 16:32:27 rgb + * Re-formatted for cosmetic consistency and readability. + * + * Revision 1.39 2000/08/20 21:38:57 rgb + * Bugfixes to as-yet-unused pfkey_update_parse() and + * pfkey_register_parse(). (Momchil) + * Added functions pfkey_safe_build(), pfkey_expire() and + * pfkey_build_reply(). (Momchil) + * Added a pfkey_reply parameter to pfkey_msg_interp(). (Momchil) + * + * Revision 1.38 2000/08/18 21:30:41 rgb + * Purged all tdb_spi, tdb_proto and tdb_dst macros. They are unclear. + * + * Revision 1.37 2000/08/18 18:18:02 rgb + * Cosmetic and descriptive changes made to debug test. + * getspi and update fixes from Momchil. + * + * Revision 1.36 2000/08/15 15:41:55 rgb + * Fixed the (as yet unused and untested) pfkey_getspi() routine. + * + * Revision 1.35 2000/08/01 14:51:52 rgb + * Removed _all_ remaining traces of DES. + * + * Revision 1.34 2000/07/28 14:58:32 rgb + * Changed kfree_s to kfree, eliminating extra arg to fix 2.4.0-test5. + * + * Revision 1.33 2000/06/28 05:50:11 rgb + * Actually set iv_bits. + * + * Revision 1.32 2000/05/30 18:36:56 rgb + * Fix AH auth hash setup bug. This breaks interop with previous PF_KEY + * FreeS/WAN, but fixes interop with other implementations. + * + * Revision 1.31 2000/03/16 14:05:48 rgb + * Fixed brace scope preventing non-debug compile. + * Added null parameter check for pfkey_x_debug(). + * + * Revision 1.30 2000/01/22 23:21:13 rgb + * Use new function satype2proto(). + * + * Revision 1.29 2000/01/22 08:40:21 rgb + * Invert condition to known value to avoid AF_INET6 in 2.0.36. + * + * Revision 1.28 2000/01/22 07:58:57 rgb + * Fixed REPLACEFLOW bug, missing braces around KLIPS_PRINT *and* SENDERR. + * + * Revision 1.27 2000/01/22 03:48:01 rgb + * Added extr pointer component debugging. + * + * Revision 1.26 2000/01/21 09:41:25 rgb + * Changed a (void*) to (char*) cast to do proper pointer math. + * Don't call tdbwipe if tdb2 is NULL. + * + * Revision 1.25 2000/01/21 06:21:01 rgb + * Added address cases for eroute flows. + * Tidied up compiler directive indentation for readability. + * Added ictx,octx vars for simplification. + * Added macros for HMAC padding magic numbers. + * Converted from double tdb arguments to one structure (extr) + * containing pointers to all temporary information structures + * and checking for valid arguments to all ext processors and + * msg type parsers. + * Added spiungrp'ing. + * Added klipsdebug switching capability. + * Removed sa_process() check for zero protocol. + * Added address case for DST2 for grouping. + * Added/changed minor debugging instrumentation. + * Fixed spigrp for single said, ungrouping case. + * Added code to parse addflow and delflow messages. + * Removed redundant statements duplicating tdbwipe() functionality + * and causing double kfrees. + * Permit addflow to have a protocol of 0. + * + * Revision 1.24 1999/12/09 23:23:00 rgb + * Added check to pfkey_sa_process() to do eroutes. + * Converted to DIVUP() macro. + * Converted if() to switch() in pfkey_register_parse(). + * Use new pfkey_extensions_init() instead of memset(). + * + * Revision 1.23 1999/12/01 22:18:13 rgb + * Preset minspi and maxspi values in case and spirange extension is not + * included and check for the presence of an spirange extension before + * using it. Initialise tdb_sastate to LARVAL. + * Fixed debugging output typo. + * Fixed authentication context initialisation bugs (4 places). + * + * Revision 1.22 1999/11/27 11:53:08 rgb + * Moved pfkey_msg_parse prototype to pfkey.h + * Moved exts_permitted/required prototype to pfkey.h. + * Moved sadb_satype2proto protocol lookup table to lib/pfkey_v2_parse.c. + * Deleted SADB_X_EXT_SA2 code from pfkey_sa_process() since it will never + * be called. + * Moved protocol/algorithm checks to lib/pfkey_v2_parse.c + * Debugging error messages added. + * Enable lifetime_current checking. + * Remove illegal requirement for SA extension to be present in an + * originating GETSPI call. + * Re-instate requirement for UPDATE or ADD message to be MATURE. + * Add argument to pfkey_msg_parse() for direction. + * Fixed IPIP dst address bug and purged redundant, leaky code. + * + * Revision 1.21 1999/11/24 05:24:20 rgb + * hanged 'void*extensions' to 'struct sadb_ext*extensions'. + * Fixed indention. + * Ditched redundant replay check. + * Fixed debug message text from 'parse' to 'process'. + * Added more debug output. + * Forgot to zero extensions array causing bug, fixed. + * + * Revision 1.20 1999/11/23 23:08:13 rgb + * Move all common parsing code to lib/pfkey_v2_parse.c and rename + * remaining bits to *_process. (PJO) + * Add macros for dealing with alignment and rounding up more opaquely. + * Use provided macro ADDRTOA_BUF instead of hardcoded value. + * Sort out pfkey and freeswan headers, putting them in a library path. + * Corrected a couple of bugs in as-yet-inactive code. + * + * Revision 1.19 1999/11/20 22:01:10 rgb + * Add more descriptive error messages for non-zero reserved fields. + * Add more descriptive error message for spirange parsing. + * Start on supported extension parsing. + * Start on register and get message parsing. + * + * Revision 1.18 1999/11/18 04:09:20 rgb + * Replaced all kernel version macros to shorter, readable form. + * + * Revision 1.17 1999/11/17 15:53:41 rgb + * Changed all occurrences of #include "../../../lib/freeswan.h" + * to #include which works due to -Ilibfreeswan in the + * klips/net/ipsec/Makefile. + * + * Revision 1.16 1999/10/26 16:57:43 rgb + * Add shorter macros for compiler directives to visually clean-up. + * Give ipv6 code meaningful compiler directive. + * Add comments to other #if 0 debug code. + * Remove unused *_bh_atomic() calls. + * Fix mis-placed spinlock. + * + * Revision 1.15 1999/10/16 18:27:10 rgb + * Clean-up unused cruft. + * Fix-up lifetime_allocations_c and lifetime_addtime_c initialisations. + * + * Revision 1.14 1999/10/08 18:37:34 rgb + * Fix end-of-line spacing to sate whining PHMs. + * + * Revision 1.13 1999/10/03 18:49:12 rgb + * Spinlock fixes for 2.0.xx and 2.3.xx. + * + * Revision 1.12 1999/10/01 15:44:54 rgb + * Move spinlock header include to 2.1> scope. + * + * Revision 1.11 1999/10/01 00:05:45 rgb + * Added tdb structure locking. + * Use 'jiffies' instead of do_get_timeofday(). + * Fix lifetime assignments. + * + * Revision 1.10 1999/09/21 15:24:45 rgb + * Rework spirange code to save entropy and prevent endless loops. + * + * Revision 1.9 1999/09/16 12:10:21 rgb + * Minor fixes to random spi selection for correctness and entropy conservation. + * + * Revision 1.8 1999/05/25 22:54:46 rgb + * Fix comparison that should be an assignment in an if. + * + * Revision 1.7 1999/05/09 03:25:37 rgb + * Fix bug introduced by 2.2 quick-and-dirty patch. + * + * Revision 1.6 1999/05/08 21:32:30 rgb + * Fix error return reporting. + * + * Revision 1.5 1999/05/05 22:02:33 rgb + * Add a quick and dirty port to 2.2 kernels by Marc Boucher . + * + * Revision 1.4 1999/04/29 15:22:40 rgb + * Standardise an error return method. + * Add debugging instrumentation. + * Add check for existence of macros min/max. + * Add extensions permitted/required in/out filters. + * Add satype-to-protocol table. + * Add a second tdb pointer to each parser to accomodate GRPSA. + * Move AH & no_algo_set to GETSPI, UPDATE and ADD. + * Add OOO window check. + * Add support for IPPROTO_IPIP and hooks for IPPROTO_COMP. + * Add timestamp to lifetime parse. + * Fix address structure length checking bug. + * Fix address structure allocation bug (forgot to kmalloc!). + * Add checks for extension lengths. + * Add checks for extension reserved illegal values. + * Add check for spirange legal values. + * Add an extension type for parsing a second satype, SA and + * DST_ADDRESS. + * Make changes to tdb_init() template to get pfkey_tdb_init(), + * eliminating any mention of xformsw. + * Implement getspi, update and grpsa (not tested). + * Add stubs for as yet unimplemented message types. + * Add table of message parsers to substitute for msg_parse switch. + * + * Revision 1.3 1999/04/15 17:58:07 rgb + * Add RCSID labels. + * + * Revision 1.2 1999/04/15 15:37:26 rgb + * Forward check changes from POST1_00 branch. + * + * Revision 1.1.2.1 1999/03/26 20:58:56 rgb + * Add pfkeyv2 support to KLIPS. + * + * Local variables: + * c-file-style: "linux" + * End: + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/prng.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,201 @@ +/* + * crypto-class pseudorandom number generator + * currently uses same algorithm as RC4(TM), from Schneier 2nd ed p397 + * Copyright (C) 2002 Henry Spencer. + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + * License for more details. + * + * RCSID $Id: prng.c,v 1.7 2004/07/10 07:48:36 mcr Exp $ + */ +#include "openswan.h" + +/* + - prng_init - initialize PRNG from a key + */ +void +prng_init(prng, key, keylen) +struct prng *prng; +const unsigned char *key; +size_t keylen; +{ + unsigned char k[256]; + int i, j; + unsigned const char *p; + unsigned const char *keyend = key + keylen; + unsigned char t; + + for (i = 0; i <= 255; i++) + prng->sbox[i] = i; + p = key; + for (i = 0; i <= 255; i++) { + k[i] = *p++; + if (p >= keyend) + p = key; + } + j = 0; + for (i = 0; i <= 255; i++) { + j = (j + prng->sbox[i] + k[i]) & 0xff; + t = prng->sbox[i]; + prng->sbox[i] = prng->sbox[j]; + prng->sbox[j] = t; + k[i] = 0; /* clear out key memory */ + } + prng->i = 0; + prng->j = 0; + prng->count = 0; +} + +/* + - prng_bytes - get some pseudorandom bytes from PRNG + */ +void +prng_bytes(prng, dst, dstlen) +struct prng *prng; +unsigned char *dst; +size_t dstlen; +{ + int i, j, t; + unsigned char *p = dst; + size_t remain = dstlen; +# define MAX 4000000000ul + + while (remain > 0) { + i = (prng->i + 1) & 0xff; + prng->i = i; + j = (prng->j + prng->sbox[i]) & 0xff; + prng->j = j; + t = prng->sbox[i]; + prng->sbox[i] = prng->sbox[j]; + prng->sbox[j] = t; + t = (t + prng->sbox[i]) & 0xff; + *p++ = prng->sbox[t]; + remain--; + } + if (prng->count < MAX - dstlen) + prng->count += dstlen; + else + prng->count = MAX; +} + +/* + - prnt_count - how many bytes have been extracted from PRNG so far? + */ +unsigned long +prng_count(prng) +struct prng *prng; +{ + return prng->count; +} + +/* + - prng_final - clear out PRNG to ensure nothing left in memory + */ +void +prng_final(prng) +struct prng *prng; +{ + int i; + + for (i = 0; i <= 255; i++) + prng->sbox[i] = 0; + prng->i = 0; + prng->j = 0; + prng->count = 0; /* just for good measure */ +} + + + +#ifdef PRNG_MAIN + +#include + +void regress(); + +int +main(argc, argv) +int argc; +char *argv[]; +{ + struct prng pr; + unsigned char buf[100]; + unsigned char *p; + size_t n; + + if (argc < 2) { + fprintf(stderr, "Usage: %s {key|-r}\n", argv[0]); + exit(2); + } + + if (strcmp(argv[1], "-r") == 0) { + regress(); + fprintf(stderr, "regress() returned?!?\n"); + exit(1); + } + + prng_init(&pr, argv[1], strlen(argv[1])); + prng_bytes(&pr, buf, 32); + printf("0x"); + for (p = buf, n = 32; n > 0; p++, n--) + printf("%02x", *p); + printf("\n%lu bytes\n", prng_count(&pr)); + prng_final(&pr); + exit(0); +} + +void +regress() +{ + struct prng pr; + unsigned char buf[100]; + unsigned char *p; + size_t n; + /* somewhat non-random sample key */ + unsigned char key[] = "here we go gathering nuts in May"; + /* first thirty bytes of output from that key */ + unsigned char good[] = "\x3f\x02\x8e\x4a\x2a\xea\x23\x18\x92\x7c" + "\x09\x52\x83\x61\xaa\x26\xce\xbb\x9d\x71" + "\x71\xe5\x10\x22\xaf\x60\x54\x8d\x5b\x28"; + int nzero, none; + int show = 0; + + prng_init(&pr, key, strlen(key)); + prng_bytes(&pr, buf, sizeof(buf)); + for (p = buf, n = sizeof(buf); n > 0; p++, n--) { + if (*p == 0) + nzero++; + if (*p == 255) + none++; + } + if (nzero > 3 || none > 3) { + fprintf(stderr, "suspiciously non-random output!\n"); + show = 1; + } + if (memcmp(buf, good, strlen(good)) != 0) { + fprintf(stderr, "incorrect output!\n"); + show = 1; + } + if (show) { + fprintf(stderr, "0x"); + for (p = buf, n = sizeof(buf); n > 0; p++, n--) + fprintf(stderr, "%02x", *p); + fprintf(stderr, "\n"); + exit(1); + } + if (prng_count(&pr) != sizeof(buf)) { + fprintf(stderr, "got %u bytes, but count is %lu\n", + sizeof(buf), prng_count(&pr)); + exit(1); + } + prng_final(&pr); + exit(0); +} + +#endif /* PRNG_MAIN */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/radij.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,1237 @@ +char radij_c_version[] = "RCSID $Id: radij.c,v 1.48.2.1 2006/10/06 21:39:27 paul Exp $"; + +/* + * This file is defived from ${SRC}/sys/net/radix.c of BSD 4.4lite + * + * Variable and procedure names have been modified so that they don't + * conflict with the original BSD code, as a small number of modifications + * have been introduced and we may want to reuse this code in BSD. + * + * The `j' in `radij' is pronounced as a voiceless guttural (like a Greek + * chi or a German ch sound (as `doch', not as in `milch'), or even a + * spanish j as in Juan. It is not as far back in the throat like + * the corresponding Hebrew sound, nor is it a soft breath like the English h. + * It has nothing to do with the Dutch ij sound. + * + * Here is the appropriate copyright notice: + */ + +/* + * Copyright (c) 1988, 1989, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)radix.c 8.2 (Berkeley) 1/4/94 + */ + +/* + * Routines to build and maintain radix trees for routing lookups. + */ + +#ifndef AUTOCONF_INCLUDED +#include +#endif +#include +#include /* printk() */ + +#include "openswan/ipsec_param.h" + +#ifdef MALLOC_SLAB +# include /* kmalloc() */ +#else /* MALLOC_SLAB */ +# include /* kmalloc() */ +#endif /* MALLOC_SLAB */ +#include /* error codes */ +#include /* size_t */ +#include /* mark_bh */ + +#include /* struct device, and other headers */ +#include /* eth_type_trans */ +#include /* struct iphdr */ +#include +#ifdef NET_21 +# include +#endif /* NET_21 */ + +#include + +#include + +#include "openswan/radij.h" +#include "openswan/ipsec_encap.h" +#include "openswan/ipsec_radij.h" + +int maj_keylen; +struct radij_mask *rj_mkfreelist; +struct radij_node_head *mask_rjhead; +static int gotOddMasks; +static char *maskedKey; +static char *rj_zeroes, *rj_ones; + +#define rj_masktop (mask_rjhead->rnh_treetop) +#ifdef Bcmp +# undef Bcmp +#endif /* Bcmp */ +#define Bcmp(a, b, l) (l == 0 ? 0 : memcmp((caddr_t)(b), (caddr_t)(a), (size_t)l)) +/* + * The data structure for the keys is a radix tree with one way + * branching removed. The index rj_b at an internal node n represents a bit + * position to be tested. The tree is arranged so that all descendants + * of a node n have keys whose bits all agree up to position rj_b - 1. + * (We say the index of n is rj_b.) + * + * There is at least one descendant which has a one bit at position rj_b, + * and at least one with a zero there. + * + * A route is determined by a pair of key and mask. We require that the + * bit-wise logical and of the key and mask to be the key. + * We define the index of a route to associated with the mask to be + * the first bit number in the mask where 0 occurs (with bit number 0 + * representing the highest order bit). + * + * We say a mask is normal if every bit is 0, past the index of the mask. + * If a node n has a descendant (k, m) with index(m) == index(n) == rj_b, + * and m is a normal mask, then the route applies to every descendant of n. + * If the index(m) < rj_b, this implies the trailing last few bits of k + * before bit b are all 0, (and hence consequently true of every descendant + * of n), so the route applies to all descendants of the node as well. + * + * The present version of the code makes no use of normal routes, + * but similar logic shows that a non-normal mask m such that + * index(m) <= index(n) could potentially apply to many children of n. + * Thus, for each non-host route, we attach its mask to a list at an internal + * node as high in the tree as we can go. + */ + +struct radij_node * +rj_search(v_arg, head) + void *v_arg; + struct radij_node *head; +{ + register struct radij_node *x; + register caddr_t v; + + for (x = head, v = v_arg; x->rj_b >= 0;) { + if (x->rj_bmask & v[x->rj_off]) + x = x->rj_r; + else + x = x->rj_l; + } + return (x); +}; + +struct radij_node * +rj_search_m(v_arg, head, m_arg) + struct radij_node *head; + void *v_arg, *m_arg; +{ + register struct radij_node *x; + register caddr_t v = v_arg, m = m_arg; + + for (x = head; x->rj_b >= 0;) { + if ((x->rj_bmask & m[x->rj_off]) && + (x->rj_bmask & v[x->rj_off])) + x = x->rj_r; + else + x = x->rj_l; + } + return x; +}; + +int +rj_refines(m_arg, n_arg) + void *m_arg, *n_arg; +{ + register caddr_t m = m_arg, n = n_arg; + register caddr_t lim, lim2 = lim = n + *(u_char *)n; + int longer = (*(u_char *)n++) - (int)(*(u_char *)m++); + int masks_are_equal = 1; + + if (longer > 0) + lim -= longer; + while (n < lim) { + if (*n & ~(*m)) + return 0; + if (*n++ != *m++) + masks_are_equal = 0; + + } + while (n < lim2) + if (*n++) + return 0; + if (masks_are_equal && (longer < 0)) + for (lim2 = m - longer; m < lim2; ) + if (*m++) + return 1; + return (!masks_are_equal); +} + + +struct radij_node * +rj_match(v_arg, head) + void *v_arg; + struct radij_node_head *head; +{ + caddr_t v = v_arg; + register struct radij_node *t = head->rnh_treetop, *x; + register caddr_t cp = v, cp2, cp3; + caddr_t cplim, mstart; + struct radij_node *saved_t, *top = t; + int off = t->rj_off, vlen = *(u_char *)cp, matched_off; + + /* + * Open code rj_search(v, top) to avoid overhead of extra + * subroutine call. + */ + for (; t->rj_b >= 0; ) { + if (t->rj_bmask & cp[t->rj_off]) + t = t->rj_r; + else + t = t->rj_l; + } + /* + * See if we match exactly as a host destination + */ + KLIPS_PRINT(debug_radij, + "klips_debug:rj_match: " + "* See if we match exactly as a host destination\n"); + + cp += off; cp2 = t->rj_key + off; cplim = v + vlen; + for (; cp < cplim; cp++, cp2++) + if (*cp != *cp2) + goto on1; + /* + * This extra grot is in case we are explicitly asked + * to look up the default. Ugh! + */ + if ((t->rj_flags & RJF_ROOT) && t->rj_dupedkey) + t = t->rj_dupedkey; + return t; +on1: + matched_off = cp - v; + saved_t = t; + KLIPS_PRINT(debug_radij, + "klips_debug:rj_match: " + "** try to match a leaf, t=0p%p\n", t); + do { + if (t->rj_mask) { + /* + * Even if we don't match exactly as a hosts; + * we may match if the leaf we wound up at is + * a route to a net. + */ + cp3 = matched_off + t->rj_mask; + cp2 = matched_off + t->rj_key; + for (; cp < cplim; cp++) + if ((*cp2++ ^ *cp) & *cp3++) + break; + if (cp == cplim) + return t; + cp = matched_off + v; + } + } while ((t = t->rj_dupedkey)); + t = saved_t; + /* start searching up the tree */ + KLIPS_PRINT(debug_radij, + "klips_debug:rj_match: " + "*** start searching up the tree, t=0p%p\n", + t); + do { + register struct radij_mask *m; + + t = t->rj_p; + KLIPS_PRINT(debug_radij, + "klips_debug:rj_match: " + "**** t=0p%p\n", + t); + if ((m = t->rj_mklist)) { + /* + * After doing measurements here, it may + * turn out to be faster to open code + * rj_search_m here instead of always + * copying and masking. + */ + /* off = min(t->rj_off, matched_off); */ + off = t->rj_off; + if (matched_off < off) + off = matched_off; + mstart = maskedKey + off; + do { + cp2 = mstart; + cp3 = m->rm_mask + off; + KLIPS_PRINT(debug_radij, + "klips_debug:rj_match: " + "***** cp2=0p%p cp3=0p%p\n", + cp2, cp3); + for (cp = v + off; cp < cplim;) + *cp2++ = *cp++ & *cp3++; + x = rj_search(maskedKey, t); + while (x && x->rj_mask != m->rm_mask) + x = x->rj_dupedkey; + if (x && + (Bcmp(mstart, x->rj_key + off, + vlen - off) == 0)) + return x; + } while ((m = m->rm_mklist)); + } + } while (t != top); + KLIPS_PRINT(debug_radij, + "klips_debug:rj_match: " + "***** not found.\n"); + return 0; +}; + +#ifdef RJ_DEBUG +int rj_nodenum; +struct radij_node *rj_clist; +int rj_saveinfo; +DEBUG_NO_STATIC void traverse(struct radij_node *); +#ifdef RJ_DEBUG2 +int rj_debug = 1; +#else +int rj_debug = 0; +#endif /* RJ_DEBUG2 */ +#endif /* RJ_DEBUG */ + +struct radij_node * +rj_newpair(v, b, nodes) + void *v; + int b; + struct radij_node nodes[2]; +{ + register struct radij_node *tt = nodes, *t = tt + 1; + t->rj_b = b; t->rj_bmask = 0x80 >> (b & 7); + t->rj_l = tt; t->rj_off = b >> 3; + tt->rj_b = -1; tt->rj_key = (caddr_t)v; tt->rj_p = t; + tt->rj_flags = t->rj_flags = RJF_ACTIVE; +#ifdef RJ_DEBUG + tt->rj_info = rj_nodenum++; t->rj_info = rj_nodenum++; + tt->rj_twin = t; tt->rj_ybro = rj_clist; rj_clist = tt; +#endif /* RJ_DEBUG */ + return t; +} + +struct radij_node * +rj_insert(v_arg, head, dupentry, nodes) + void *v_arg; + struct radij_node_head *head; + int *dupentry; + struct radij_node nodes[2]; +{ + caddr_t v = v_arg; + struct radij_node *top = head->rnh_treetop; + int head_off = top->rj_off, vlen = (int)*((u_char *)v); + register struct radij_node *t = rj_search(v_arg, top); + register caddr_t cp = v + head_off; + register int b; + struct radij_node *tt; + /* + *find first bit at which v and t->rj_key differ + */ + { + register caddr_t cp2 = t->rj_key + head_off; + register int cmp_res; + caddr_t cplim = v + vlen; + + while (cp < cplim) + if (*cp2++ != *cp++) + goto on1; + *dupentry = 1; + return t; +on1: + *dupentry = 0; + cmp_res = (cp[-1] ^ cp2[-1]) & 0xff; + for (b = (cp - v) << 3; cmp_res; b--) + cmp_res >>= 1; + } + { + register struct radij_node *p, *x = top; + cp = v; + do { + p = x; + if (cp[x->rj_off] & x->rj_bmask) + x = x->rj_r; + else x = x->rj_l; + } while (b > (unsigned) x->rj_b); /* x->rj_b < b && x->rj_b >= 0 */ +#ifdef RJ_DEBUG + if (rj_debug) + printk("klips_debug:rj_insert: Going In:\n"), traverse(p); +#endif /* RJ_DEBUG */ + t = rj_newpair(v_arg, b, nodes); tt = t->rj_l; + if ((cp[p->rj_off] & p->rj_bmask) == 0) + p->rj_l = t; + else + p->rj_r = t; + x->rj_p = t; t->rj_p = p; /* frees x, p as temp vars below */ + if ((cp[t->rj_off] & t->rj_bmask) == 0) { + t->rj_r = x; + } else { + t->rj_r = tt; t->rj_l = x; + } +#ifdef RJ_DEBUG + if (rj_debug) + printk("klips_debug:rj_insert: Coming out:\n"), traverse(p); +#endif /* RJ_DEBUG */ + } + return (tt); +} + +struct radij_node * +rj_addmask(n_arg, search, skip) + int search, skip; + void *n_arg; +{ + caddr_t netmask = (caddr_t)n_arg; + register struct radij_node *x; + register caddr_t cp, cplim; + register int b, mlen, j; + int maskduplicated; + + mlen = *(u_char *)netmask; + if (search) { + x = rj_search(netmask, rj_masktop); + mlen = *(u_char *)netmask; + if (Bcmp(netmask, x->rj_key, mlen) == 0) + return (x); + } + R_Malloc(x, struct radij_node *, maj_keylen + 2 * sizeof (*x)); + if (x == 0) + return (0); + Bzero(x, maj_keylen + 2 * sizeof (*x)); + cp = (caddr_t)(x + 2); + Bcopy(netmask, cp, mlen); + netmask = cp; + x = rj_insert(netmask, mask_rjhead, &maskduplicated, x); + /* + * Calculate index of mask. + */ + cplim = netmask + mlen; + for (cp = netmask + skip; cp < cplim; cp++) + if (*(u_char *)cp != 0xff) + break; + b = (cp - netmask) << 3; + if (cp != cplim) { + if (*cp != 0) { + gotOddMasks = 1; + for (j = 0x80; j; b++, j >>= 1) + if ((j & *cp) == 0) + break; + } + } + x->rj_b = -1 - b; + return (x); +} + +#if 0 +struct radij_node * +#endif +int +rj_addroute(v_arg, n_arg, head, treenodes) + void *v_arg, *n_arg; + struct radij_node_head *head; + struct radij_node treenodes[2]; +{ + caddr_t v = (caddr_t)v_arg, netmask = (caddr_t)n_arg; + register struct radij_node *t, *x=NULL, *tt; + struct radij_node *saved_tt, *top = head->rnh_treetop; + short b = 0, b_leaf; + int mlen, keyduplicated; + caddr_t cplim; + struct radij_mask *m, **mp; + + /* + * In dealing with non-contiguous masks, there may be + * many different routes which have the same mask. + * We will find it useful to have a unique pointer to + * the mask to speed avoiding duplicate references at + * nodes and possibly save time in calculating indices. + */ + if (netmask) { + x = rj_search(netmask, rj_masktop); + mlen = *(u_char *)netmask; + if (Bcmp(netmask, x->rj_key, mlen) != 0) { + x = rj_addmask(netmask, 0, top->rj_off); + if (x == 0) + return -ENOMEM; /* (0) rgb */ + } + netmask = x->rj_key; + b = -1 - x->rj_b; + } + /* + * Deal with duplicated keys: attach node to previous instance + */ + saved_tt = tt = rj_insert(v, head, &keyduplicated, treenodes); +#ifdef RJ_DEBUG + printk("addkey: duplicated: %d\n", keyduplicated); +#endif + if (keyduplicated) { + do { + if (tt->rj_mask == netmask) + return -EEXIST; /* -ENXIO; (0) rgb */ + t = tt; + if (netmask == 0 || + (tt->rj_mask && rj_refines(netmask, tt->rj_mask))) + break; + } while ((tt = tt->rj_dupedkey)); + /* + * If the mask is not duplicated, we wouldn't + * find it among possible duplicate key entries + * anyway, so the above test doesn't hurt. + * + * We sort the masks for a duplicated key the same way as + * in a masklist -- most specific to least specific. + * This may require the unfortunate nuisance of relocating + * the head of the list. + */ + if (tt && t == saved_tt) { + struct radij_node *xx = x; + /* link in at head of list */ + (tt = treenodes)->rj_dupedkey = t; + tt->rj_flags = t->rj_flags; + tt->rj_p = x = t->rj_p; + if (x->rj_l == t) x->rj_l = tt; else x->rj_r = tt; + saved_tt = tt; x = xx; + } else { + (tt = treenodes)->rj_dupedkey = t->rj_dupedkey; + t->rj_dupedkey = tt; + } +#ifdef RJ_DEBUG + t=tt+1; tt->rj_info = rj_nodenum++; t->rj_info = rj_nodenum++; + tt->rj_twin = t; tt->rj_ybro = rj_clist; rj_clist = tt; +#endif /* RJ_DEBUG */ + t = saved_tt; + tt->rj_key = (caddr_t) v; + tt->rj_b = -1; + tt->rj_flags = t->rj_flags & ~RJF_ROOT; + } + /* + * Put mask in tree. + */ + if (netmask) { + tt->rj_mask = netmask; + tt->rj_b = x->rj_b; + } + t = saved_tt->rj_p; + b_leaf = -1 - t->rj_b; + if (t->rj_r == saved_tt) x = t->rj_l; else x = t->rj_r; + /* Promote general routes from below */ + if (x->rj_b < 0) { + if (x->rj_mask && (x->rj_b >= b_leaf) && x->rj_mklist == 0) { + MKGet(m); + if (m) { + Bzero(m, sizeof *m); + m->rm_b = x->rj_b; + m->rm_mask = x->rj_mask; + x->rj_mklist = t->rj_mklist = m; + } + } + } else if (x->rj_mklist) { + /* + * Skip over masks whose index is > that of new node + */ + for (mp = &x->rj_mklist; (m = *mp); mp = &m->rm_mklist) + if (m->rm_b >= b_leaf) + break; + t->rj_mklist = m; *mp = 0; + } + /* Add new route to highest possible ancestor's list */ + if ((netmask == 0) || (b > t->rj_b )) { +#ifdef RJ_DEBUG + printk("klips:radij.c: netmask = %p or b(%d)>t->rjb(%d)\n", netmask, b, t->rj_b); +#endif + return 0; /* tt rgb */ /* can't lift at all */ + } + b_leaf = tt->rj_b; + do { + x = t; + t = t->rj_p; + } while (b <= t->rj_b && x != top); + /* + * Search through routes associated with node to + * insert new route according to index. + * For nodes of equal index, place more specific + * masks first. + */ + cplim = netmask + mlen; + for (mp = &x->rj_mklist; (m = *mp); mp = &m->rm_mklist) { + if (m->rm_b < b_leaf) + continue; + if (m->rm_b > b_leaf) + break; + if (m->rm_mask == netmask) { + m->rm_refs++; + tt->rj_mklist = m; +#ifdef RJ_DEBUG + printk("klips:radij.c: m->rm_mask %p == netmask\n", netmask); +#endif + return 0; /* tt rgb */ + } + if (rj_refines(netmask, m->rm_mask)) + break; + } + MKGet(m); + if (m == 0) { + printk("klips_debug:rj_addroute: " + "Mask for route not entered\n"); + return 0; /* (tt) rgb */ + } + Bzero(m, sizeof *m); + m->rm_b = b_leaf; + m->rm_mask = netmask; + m->rm_mklist = *mp; + *mp = m; + tt->rj_mklist = m; +#ifdef RJ_DEBUG + printk("klips:radij.c: addroute done\n"); +#endif + return 0; /* tt rgb */ +} + +int +rj_delete(v_arg, netmask_arg, head, node) + void *v_arg, *netmask_arg; + struct radij_node_head *head; + struct radij_node **node; +{ + register struct radij_node *t, *p, *x, *tt; + struct radij_mask *m, *saved_m, **mp; + struct radij_node *dupedkey, *saved_tt, *top; + caddr_t v, netmask; + int b, head_off, vlen; + + v = v_arg; + netmask = netmask_arg; + x = head->rnh_treetop; + tt = rj_search(v, x); + head_off = x->rj_off; + vlen = *(u_char *)v; + saved_tt = tt; + top = x; + if (tt == 0 || + Bcmp(v + head_off, tt->rj_key + head_off, vlen - head_off)) + return -EFAULT; /* (0) rgb */ + /* + * Delete our route from mask lists. + */ + if ((dupedkey = tt->rj_dupedkey)) { + if (netmask) + netmask = rj_search(netmask, rj_masktop)->rj_key; + while (tt->rj_mask != netmask) + if ((tt = tt->rj_dupedkey) == 0) + return -ENOENT; /* -ENXIO; (0) rgb */ + } + if (tt->rj_mask == 0 || (saved_m = m = tt->rj_mklist) == 0) + goto on1; + if (m->rm_mask != tt->rj_mask) { + printk("klips_debug:rj_delete: " + "inconsistent annotation\n"); + goto on1; + } + if (--m->rm_refs >= 0) + goto on1; + b = -1 - tt->rj_b; + t = saved_tt->rj_p; + if (b > t->rj_b) + goto on1; /* Wasn't lifted at all */ + do { + x = t; + t = t->rj_p; + } while (b <= t->rj_b && x != top); + for (mp = &x->rj_mklist; (m = *mp); mp = &m->rm_mklist) + if (m == saved_m) { + *mp = m->rm_mklist; + MKFree(m); + break; + } + if (m == 0) + printk("klips_debug:rj_delete: " + "couldn't find our annotation\n"); +on1: + /* + * Eliminate us from tree + */ + if (tt->rj_flags & RJF_ROOT) + return -EFAULT; /* (0) rgb */ +#ifdef RJ_DEBUG + /* Get us out of the creation list */ + for (t = rj_clist; t && t->rj_ybro != tt; t = t->rj_ybro) {} + if (t) t->rj_ybro = tt->rj_ybro; +#endif /* RJ_DEBUG */ + t = tt->rj_p; + if (dupedkey) { + if (tt == saved_tt) { + x = dupedkey; x->rj_p = t; + if (t->rj_l == tt) t->rj_l = x; else t->rj_r = x; + } else { + for (x = p = saved_tt; p && p->rj_dupedkey != tt;) + p = p->rj_dupedkey; + if (p) p->rj_dupedkey = tt->rj_dupedkey; + else printk("klips_debug:rj_delete: " + "couldn't find node that we started with\n"); + } + t = tt + 1; + if (t->rj_flags & RJF_ACTIVE) { +#ifndef RJ_DEBUG + *++x = *t; p = t->rj_p; +#else + b = t->rj_info; *++x = *t; t->rj_info = b; p = t->rj_p; +#endif /* RJ_DEBUG */ + if (p->rj_l == t) p->rj_l = x; else p->rj_r = x; + x->rj_l->rj_p = x; x->rj_r->rj_p = x; + } + goto out; + } + if (t->rj_l == tt) x = t->rj_r; else x = t->rj_l; + p = t->rj_p; + if (p->rj_r == t) p->rj_r = x; else p->rj_l = x; + x->rj_p = p; + /* + * Demote routes attached to us. + */ + if (t->rj_mklist) { + if (x->rj_b >= 0) { + for (mp = &x->rj_mklist; (m = *mp);) + mp = &m->rm_mklist; + *mp = t->rj_mklist; + } else { + for (m = t->rj_mklist; m;) { + struct radij_mask *mm = m->rm_mklist; + if (m == x->rj_mklist && (--(m->rm_refs) < 0)) { + x->rj_mklist = 0; + MKFree(m); + } else + printk("klips_debug:rj_delete: " + "Orphaned Mask 0p%p at 0p%p\n", m, x); + m = mm; + } + } + } + /* + * We may be holding an active internal node in the tree. + */ + x = tt + 1; + if (t != x) { +#ifndef RJ_DEBUG + *t = *x; +#else + b = t->rj_info; *t = *x; t->rj_info = b; +#endif /* RJ_DEBUG */ + t->rj_l->rj_p = t; t->rj_r->rj_p = t; + p = x->rj_p; + if (p->rj_l == x) p->rj_l = t; else p->rj_r = t; + } +out: + tt->rj_flags &= ~RJF_ACTIVE; + tt[1].rj_flags &= ~RJF_ACTIVE; + *node = tt; + return 0; /* (tt) rgb */ +} + +int +rj_walktree(h, f, w) + struct radij_node_head *h; + register int (*f)(struct radij_node *,void *); + void *w; +{ + int error; + struct radij_node *base, *next; + register struct radij_node *rn; + + if(!h || !f /* || !w */) { + return -ENODATA; + } + + rn = h->rnh_treetop; + /* + * This gets complicated because we may delete the node + * while applying the function f to it, so we need to calculate + * the successor node in advance. + */ + /* First time through node, go left */ + while (rn->rj_b >= 0) + rn = rn->rj_l; + for (;;) { +#ifdef CONFIG_KLIPS_DEBUG + if(debug_radij) { + printk("klips_debug:rj_walktree: " + "for: rn=0p%p rj_b=%d rj_flags=%x", + rn, + rn->rj_b, + rn->rj_flags); + rn->rj_b >= 0 ? + printk(" node off=%x\n", + rn->rj_off) : + printk(" leaf key = %08x->%08x\n", + (u_int)ntohl(((struct sockaddr_encap *)rn->rj_key)->sen_ip_src.s_addr), + (u_int)ntohl(((struct sockaddr_encap *)rn->rj_key)->sen_ip_dst.s_addr)) + ; + } +#endif /* CONFIG_KLIPS_DEBUG */ + base = rn; + /* If at right child go back up, otherwise, go right */ + while (rn->rj_p->rj_r == rn && (rn->rj_flags & RJF_ROOT) == 0) + rn = rn->rj_p; + /* Find the next *leaf* since next node might vanish, too */ + for (rn = rn->rj_p->rj_r; rn->rj_b >= 0;) + rn = rn->rj_l; + next = rn; +#ifdef CONFIG_KLIPS_DEBUG + if(debug_radij) { + printk("klips_debug:rj_walktree: " + "processing leaves, rn=0p%p rj_b=%d rj_flags=%x", + rn, + rn->rj_b, + rn->rj_flags); + rn->rj_b >= 0 ? + printk(" node off=%x\n", + rn->rj_off) : + printk(" leaf key = %08x->%08x\n", + (u_int)ntohl(((struct sockaddr_encap *)rn->rj_key)->sen_ip_src.s_addr), + (u_int)ntohl(((struct sockaddr_encap *)rn->rj_key)->sen_ip_dst.s_addr)) + ; + } +#endif /* CONFIG_KLIPS_DEBUG */ + /* Process leaves */ + while ((rn = base)) { + base = rn->rj_dupedkey; +#ifdef CONFIG_KLIPS_DEBUG + if(debug_radij) { + printk("klips_debug:rj_walktree: " + "while: base=0p%p rn=0p%p rj_b=%d rj_flags=%x", + base, + rn, + rn->rj_b, + rn->rj_flags); + rn->rj_b >= 0 ? + printk(" node off=%x\n", + rn->rj_off) : + printk(" leaf key = %08x->%08x\n", + (u_int)ntohl(((struct sockaddr_encap *)rn->rj_key)->sen_ip_src.s_addr), + (u_int)ntohl(((struct sockaddr_encap *)rn->rj_key)->sen_ip_dst.s_addr)) + ; + } +#endif /* CONFIG_KLIPS_DEBUG */ + if (!(rn->rj_flags & RJF_ROOT) && (error = (*f)(rn, w))) + return (-error); + } + rn = next; + if (rn->rj_flags & RJF_ROOT) + return (0); + } + /* NOTREACHED */ +} + +int +rj_inithead(head, off) + void **head; + int off; +{ + register struct radij_node_head *rnh; + register struct radij_node *t, *tt, *ttt; + if (*head) + return (1); + R_Malloc(rnh, struct radij_node_head *, sizeof (*rnh)); + if (rnh == NULL) + return (0); + Bzero(rnh, sizeof (*rnh)); + *head = rnh; + t = rj_newpair(rj_zeroes, off, rnh->rnh_nodes); + ttt = rnh->rnh_nodes + 2; + t->rj_r = ttt; + t->rj_p = t; + tt = t->rj_l; + tt->rj_flags = t->rj_flags = RJF_ROOT | RJF_ACTIVE; + tt->rj_b = -1 - off; + *ttt = *tt; + ttt->rj_key = rj_ones; + rnh->rnh_addaddr = rj_addroute; + rnh->rnh_deladdr = rj_delete; + rnh->rnh_matchaddr = rj_match; + rnh->rnh_walktree = rj_walktree; + rnh->rnh_treetop = t; + return (1); +} + +void +rj_init() +{ + char *cp, *cplim; + + if (maj_keylen == 0) { + printk("klips_debug:rj_init: " + "radij functions require maj_keylen be set\n"); + return; + } + R_Malloc(rj_zeroes, char *, 3 * maj_keylen); + if (rj_zeroes == NULL) + panic("rj_init"); + Bzero(rj_zeroes, 3 * maj_keylen); + rj_ones = cp = rj_zeroes + maj_keylen; + maskedKey = cplim = rj_ones + maj_keylen; + while (cp < cplim) + *cp++ = -1; + if (rj_inithead((void **)&mask_rjhead, 0) == 0) + panic("rj_init 2"); +} + +void +rj_preorder(struct radij_node *rn, int l) +{ + int i; + + if (rn == NULL){ + printk("klips_debug:rj_preorder: " + "NULL pointer\n"); + return; + } + + if (rn->rj_b >= 0){ + rj_preorder(rn->rj_l, l+1); + rj_preorder(rn->rj_r, l+1); + printk("klips_debug:"); + for (i=0; irj_off); + } else { + printk("klips_debug:"); + for (i=0; irj_flags); + if (rn->rj_flags & RJF_ACTIVE) { + printk(" @key=0p%p", + rn->rj_key); + printk(" key = %08x->%08x", + (u_int)ntohl(((struct sockaddr_encap *)rn->rj_key)->sen_ip_src.s_addr), + (u_int)ntohl(((struct sockaddr_encap *)rn->rj_key)->sen_ip_dst.s_addr)); + printk(" @mask=0p%p", + rn->rj_mask); + if (rn->rj_mask) + printk(" mask = %08x->%08x", + (u_int)ntohl(((struct sockaddr_encap *)rn->rj_mask)->sen_ip_src.s_addr), + (u_int)ntohl(((struct sockaddr_encap *)rn->rj_mask)->sen_ip_dst.s_addr)); + if (rn->rj_dupedkey) + printk(" dupedkey = 0p%p", + rn->rj_dupedkey); + } + printk("\n"); + } +} + +#ifdef RJ_DEBUG +DEBUG_NO_STATIC void traverse(struct radij_node *p) +{ + rj_preorder(p, 0); +} +#endif /* RJ_DEBUG */ + +void +rj_dumptrees(void) +{ + rj_preorder(rnh->rnh_treetop, 0); +} + +void +rj_free_mkfreelist(void) +{ + struct radij_mask *mknp, *mknp2; + + mknp = rj_mkfreelist; + while(mknp) + { + mknp2 = mknp; + mknp = mknp->rm_mklist; + kfree(mknp2); + } +} + +int +radijcleartree(void) +{ + return rj_walktree(rnh, ipsec_rj_walker_delete, NULL); +} + +int +radijcleanup(void) +{ + int error = 0; + + error = radijcleartree(); + + rj_free_mkfreelist(); + +/* rj_walktree(mask_rjhead, ipsec_rj_walker_delete, NULL); */ + if(mask_rjhead) { + kfree(mask_rjhead); + } + + if(rj_zeroes) { + kfree(rj_zeroes); + } + + if(rnh) { + kfree(rnh); + } + + return error; +} + +/* + * $Log: radij.c,v $ + * Revision 1.48.2.1 2006/10/06 21:39:27 paul + * Fix for 2.6.18+ only include linux/config.h if AUTOCONF_INCLUDED is not + * set. This is defined through autoconf.h which is included through the + * linux kernel build macros. + * + * Revision 1.48 2005/04/29 05:10:22 mcr + * removed from extraenous includes to make unit testing easier. + * + * Revision 1.47 2004/07/10 19:11:18 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.46 2004/04/06 02:49:26 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.45 2003/10/31 02:27:55 mcr + * pulled up port-selector patches and sa_id elimination. + * + * Revision 1.44.30.1 2003/10/29 01:30:41 mcr + * elimited "struct sa_id". + * + * Revision 1.44 2002/07/24 18:44:54 rgb + * Type fiddling to tame ia64 compiler. + * + * Revision 1.43 2002/05/23 07:14:11 rgb + * Cleaned up %p variants to 0p%p for test suite cleanup. + * + * Revision 1.42 2002/04/24 07:55:32 mcr + * #include patches and Makefiles for post-reorg compilation. + * + * Revision 1.41 2002/04/24 07:36:35 mcr + * Moved from ./klips/net/ipsec/radij.c,v + * + * Revision 1.40 2002/01/29 17:17:58 mcr + * moved include of ipsec_param.h to after include of linux/kernel.h + * otherwise, it seems that some option that is set in ipsec_param.h + * screws up something subtle in the include path to kernel.h, and + * it complains on the snprintf() prototype. + * + * Revision 1.39 2002/01/29 04:00:55 mcr + * more excise of kversions.h header. + * + * Revision 1.38 2002/01/29 02:13:19 mcr + * introduction of ipsec_kversion.h means that include of + * ipsec_param.h must preceed any decisions about what files to + * include to deal with differences in kernel source. + * + * Revision 1.37 2001/10/18 04:45:23 rgb + * 2.4.9 kernel deprecates linux/malloc.h in favour of linux/slab.h, + * lib/freeswan.h version macros moved to lib/kversions.h. + * Other compiler directive cleanups. + * + * Revision 1.36 2001/08/22 13:43:51 henry + * eliminate the single use of min() to avoid problems with Linus changing it + * + * Revision 1.35 2001/06/15 04:57:29 rgb + * Clarified error return codes. + * Changed mask add already exists to EEXIST. + * Changed mask delete did not exist to ENOENT. + * + * Revision 1.34 2001/05/03 19:44:26 rgb + * Fix sign of error return codes for rj_addroute(). + * + * Revision 1.33 2001/02/27 22:24:56 rgb + * Re-formatting debug output (line-splitting, joining, 1arg/line). + * Check for satoa() return codes. + * + * Revision 1.32 2001/02/27 06:23:15 rgb + * Debug line splitting. + * + * Revision 1.31 2000/11/06 04:35:21 rgb + * Clear table *before* releasing other items in radijcleanup. + * + * Revision 1.30 2000/09/20 04:07:40 rgb + * Changed static functions to DEBUG_NO_STATIC to reveal function names in + * oopsen. + * + * Revision 1.29 2000/09/12 03:25:02 rgb + * Moved radij_c_version printing to ipsec_version_get_info(). + * + * Revision 1.28 2000/09/08 19:12:56 rgb + * Change references from DEBUG_IPSEC to CONFIG_IPSEC_DEBUG. + * + * Revision 1.27 2000/07/28 14:58:32 rgb + * Changed kfree_s to kfree, eliminating extra arg to fix 2.4.0-test5. + * + * Revision 1.26 2000/05/10 23:11:37 rgb + * Comment out most of the startup version information. + * + * Revision 1.25 2000/01/21 06:21:47 rgb + * Change return codes to negative on error. + * + * Revision 1.24 1999/11/18 04:09:20 rgb + * Replaced all kernel version macros to shorter, readable form. + * + * Revision 1.23 1999/11/17 15:53:41 rgb + * Changed all occurrences of #include "../../../lib/freeswan.h" + * to #include which works due to -Ilibfreeswan in the + * klips/net/ipsec/Makefile. + * + * Revision 1.22 1999/10/15 22:17:28 rgb + * Modify radijcleanup() to call radijcleartree(). + * + * Revision 1.21 1999/10/08 18:37:34 rgb + * Fix end-of-line spacing to sate whining PHMs. + * + * Revision 1.20 1999/10/01 15:44:54 rgb + * Move spinlock header include to 2.1> scope. + * + * Revision 1.19 1999/10/01 08:35:52 rgb + * Add spinlock include to shut up compiler for 2.0.38. + * + * Revision 1.18 1999/09/23 18:02:52 rgb + * De-alarm the search failure message so it doesn't sound so grave. + * + * Revision 1.17 1999/05/25 21:26:01 rgb + * Fix rj_walktree() sanity checking bug. + * + * Revision 1.16 1999/05/09 03:25:38 rgb + * Fix bug introduced by 2.2 quick-and-dirty patch. + * + * Revision 1.15 1999/05/05 22:02:33 rgb + * Add a quick and dirty port to 2.2 kernels by Marc Boucher . + * + * Revision 1.14 1999/04/29 15:24:15 rgb + * Add sanity checking for null pointer arguments. + * Standardise an error return method. + * + * Revision 1.13 1999/04/11 00:29:02 henry + * GPL boilerplate + * + * Revision 1.12 1999/04/06 04:54:28 rgb + * Fix/Add RCSID Id: and Log: bits to make PHMDs happy. This includes + * patch shell fixes. + * + * Revision 1.11 1999/02/17 16:52:53 rgb + * Convert DEBUG_IPSEC to KLIPS_PRINT + * Clean out unused cruft. + * + * Revision 1.10 1999/01/22 06:30:05 rgb + * Cruft clean-out. + * 64-bit clean-up. + * + * Revision 1.9 1998/12/01 13:22:04 rgb + * Added support for debug printing of version info. + * + * Revision 1.8 1998/11/30 13:22:55 rgb + * Rationalised all the klips kernel file headers. They are much shorter + * now and won't conflict under RH5.2. + * + * Revision 1.7 1998/10/25 02:43:26 rgb + * Change return type on rj_addroute and rj_delete and add and argument + * to the latter to be able to transmit more infomation about errors. + * + * Revision 1.6 1998/10/19 14:30:06 rgb + * Added inclusion of freeswan.h. + * + * Revision 1.5 1998/10/09 04:33:27 rgb + * Added 'klips_debug' prefix to all klips printk debug statements. + * Fixed output formatting slightly. + * + * Revision 1.4 1998/07/28 00:06:59 rgb + * Add debug detail to tree traversing. + * + * Revision 1.3 1998/07/14 18:07:58 rgb + * Add a routine to clear the eroute tree. + * + * Revision 1.2 1998/06/25 20:03:22 rgb + * Cleanup #endif comments. Debug output for rj_init. + * + * Revision 1.1 1998/06/18 21:30:22 henry + * move sources from klips/src to klips/net/ipsec to keep stupid kernel + * build scripts happier about symlinks + * + * Revision 1.8 1998/05/25 20:34:15 rgb + * Remove temporary ipsec_walk, rj_deltree and rj_delnodes functions. + * + * Rename ipsec_rj_walker (ipsec_walk) to ipsec_rj_walker_procprint and + * add ipsec_rj_walker_delete. + * + * Recover memory for eroute table on unload of module. + * + * Revision 1.7 1998/05/21 12:58:58 rgb + * Moved 'extern' definitions to ipsec_radij.h to support /proc 3k limit fix. + * + * Revision 1.6 1998/04/23 20:57:29 rgb + * Cleaned up compiler warnings for unused debugging functions. + * + * Revision 1.5 1998/04/22 16:51:38 rgb + * Tidy up radij debug code from recent rash of modifications to debug code. + * + * Revision 1.4 1998/04/21 21:28:56 rgb + * Rearrange debug switches to change on the fly debug output from user + * space. Only kernel changes checked in at this time. radij.c was also + * changed to temporarily remove buggy debugging code in rj_delete causing + * an OOPS and hence, netlink device open errors. + * + * Revision 1.3 1998/04/14 17:30:37 rgb + * Fix up compiling errors for radij tree memory reclamation. + * + * Revision 1.2 1998/04/12 22:03:25 rgb + * Updated ESP-3DES-HMAC-MD5-96, + * ESP-DES-HMAC-MD5-96, + * AH-HMAC-MD5-96, + * AH-HMAC-SHA1-96 since Henry started freeswan cvs repository + * from old standards (RFC182[5-9] to new (as of March 1998) drafts. + * + * Fixed eroute references in /proc/net/ipsec*. + * + * Started to patch module unloading memory leaks in ipsec_netlink and + * radij tree unloading. + * + * Revision 1.1 1998/04/09 03:06:15 henry + * sources moved up from linux/net/ipsec + * + * Revision 1.1.1.1 1998/04/08 05:35:03 henry + * RGB's ipsec-0.8pre2.tar.gz ipsec-0.8 + * + * Revision 0.4 1997/01/15 01:28:15 ji + * No changes. + * + * Revision 0.3 1996/11/20 14:39:04 ji + * Minor cleanups. + * Rationalized debugging code. + * + * Revision 0.2 1996/11/02 00:18:33 ji + * First limited release. + * + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/rangetoa.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,60 @@ +/* + * convert binary form of address range to ASCII + * Copyright (C) 1998, 1999 Henry Spencer. + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + * License for more details. + * + * RCSID $Id: rangetoa.c,v 1.9 2004/07/10 07:48:37 mcr Exp $ + */ +#include "openswan.h" + +/* + - rangetoa - convert address range to ASCII + */ +size_t /* space needed for full conversion */ +rangetoa(addrs, format, dst, dstlen) +struct in_addr addrs[2]; +int format; /* character */ +char *dst; /* need not be valid if dstlen is 0 */ +size_t dstlen; +{ + size_t len; + size_t rest; + int n; + char *p; + + switch (format) { + case 0: + break; + default: + return 0; + break; + } + + len = addrtoa(addrs[0], 0, dst, dstlen); + if (len < dstlen) + for (p = dst + len - 1, n = 3; len < dstlen && n > 0; + p++, len++, n--) + *p = '.'; + else + p = NULL; + if (len < dstlen) + rest = dstlen - len; + else { + if (dstlen > 0) + *(dst + dstlen - 1) = '\0'; + rest = 0; + } + + len += addrtoa(addrs[1], 0, p, rest); + + return len; +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/satot.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,133 @@ +/* + * convert from binary form of SA ID to text + * Copyright (C) 2000, 2001 Henry Spencer. + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + * License for more details. + * + * RCSID $Id: satot.c,v 1.13 2004/07/10 07:48:37 mcr Exp $ + */ +#include "openswan.h" + +static struct typename { + char type; + char *name; +} typenames[] = { + { SA_AH, "ah" }, + { SA_ESP, "esp" }, + { SA_IPIP, "tun" }, + { SA_COMP, "comp" }, + { SA_INT, "int" }, + { 0, NULL } +}; + +/* + - satot - convert SA to text "ah507@1.2.3.4" + */ +size_t /* space needed for full conversion */ +satot(sa, format, dst, dstlen) +const ip_said *sa; +int format; /* character */ +char *dst; /* need not be valid if dstlen is 0 */ +size_t dstlen; +{ + size_t len = 0; /* 0 means "not recognized yet" */ + int base; + int showversion; /* use delimiter to show IP version? */ + struct typename *tn; + char *p; + char *pre; + char buf[10+1+ULTOT_BUF+ADDRTOT_BUF]; + char unk[10]; + + switch (format) { + case 0: + base = 16; + showversion = 1; + break; + case 'f': + base = 17; + showversion = 1; + break; + case 'x': + base = 'x'; + showversion = 0; + break; + case 'd': + base = 10; + showversion = 0; + break; + default: + return 0; + break; + } + + memset(buf, 0, sizeof(buf)); + + pre = NULL; + for (tn = typenames; tn->name != NULL; tn++) + if (sa->proto == tn->type) { + pre = tn->name; + break; /* NOTE BREAK OUT */ + } + if (pre == NULL) { /* unknown protocol */ + strcpy(unk, "unk"); + (void) ultot((unsigned char)sa->proto, 10, unk+strlen(unk), + sizeof(unk)-strlen(unk)); + pre = unk; + } + + if (strcmp(pre, PASSTHROUGHTYPE) == 0 && + sa->spi == PASSTHROUGHSPI && + isunspecaddr(&sa->dst)) { + strcpy(buf, (addrtypeof(&sa->dst) == AF_INET) ? + PASSTHROUGH4NAME : + PASSTHROUGH6NAME); + len = strlen(buf); + } + + if (sa->proto == SA_INT) { + switch (ntohl(sa->spi)) { + case SPI_PASS: p = "%pass"; break; + case SPI_DROP: p = "%drop"; break; + case SPI_REJECT: p = "%reject"; break; + case SPI_HOLD: p = "%hold"; break; + case SPI_TRAP: p = "%trap"; break; + case SPI_TRAPSUBNET: p = "%trapsubnet"; break; + default: p = NULL; break; + } + if (p != NULL) { + strcpy(buf, p); + len = strlen(buf); + } + } + + if (len == 0) { /* general case needed */ + strcpy(buf, pre); + len = strlen(buf); + if (showversion) { + *(buf+len) = (addrtypeof(&sa->dst) == AF_INET) ? '.' : + ':'; + len++; + *(buf+len) = '\0'; + } + len += ultot(ntohl(sa->spi), base, buf+len, sizeof(buf)-len); + *(buf+len-1) = '@'; + len += addrtot(&sa->dst, 0, buf+len, sizeof(buf)-len); + *(buf+len) = '\0'; + } + + if (dst != NULL) { + if (len > dstlen) + *(buf+dstlen-1) = '\0'; + strcpy(dst, buf); + } + return len; +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/subnetof.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,59 @@ +/* + * minor network-address manipulation utilities + * Copyright (C) 1998, 1999 Henry Spencer. + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + * License for more details. + * + * RCSID $Id: subnetof.c,v 1.8 2004/07/10 07:48:37 mcr Exp $ + */ +#include "openswan.h" + +/* + - subnetof - given address and mask, return subnet part + */ +struct in_addr +subnetof(addr, mask) +struct in_addr addr; +struct in_addr mask; +{ + struct in_addr result; + + result.s_addr = addr.s_addr & mask.s_addr; + return result; +} + +/* + - hostof - given address and mask, return host part + */ +struct in_addr +hostof(addr, mask) +struct in_addr addr; +struct in_addr mask; +{ + struct in_addr result; + + result.s_addr = addr.s_addr & ~mask.s_addr; + return result; +} + +/* + - broadcastof - given (network) address and mask, return broadcast address + */ +struct in_addr +broadcastof(addr, mask) +struct in_addr addr; +struct in_addr mask; +{ + struct in_addr result; + + result.s_addr = addr.s_addr | ~mask.s_addr; + return result; +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/subnettoa.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,61 @@ +/* + * convert binary form of subnet description to ASCII + * Copyright (C) 1998, 1999 Henry Spencer. + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + * License for more details. + * + * RCSID $Id: subnettoa.c,v 1.11 2004/07/10 07:48:37 mcr Exp $ + */ +#include "openswan.h" + +/* + - subnettoa - convert address and mask to ASCII "addr/mask" + * Output expresses the mask as a bit count if possible, else dotted decimal. + */ +size_t /* space needed for full conversion */ +subnettoa(addr, mask, format, dst, dstlen) +struct in_addr addr; +struct in_addr mask; +int format; /* character */ +char *dst; /* need not be valid if dstlen is 0 */ +size_t dstlen; +{ + size_t len; + size_t rest; + int n; + char *p; + + switch (format) { + case 0: + break; + default: + return 0; + break; + } + + len = addrtoa(addr, 0, dst, dstlen); + if (len < dstlen) { + dst[len - 1] = '/'; + p = dst + len; + rest = dstlen - len; + } else { + p = NULL; + rest = 0; + } + + n = masktobits(mask); + if (n >= 0) + len += ultoa((unsigned long)n, 10, p, rest); + else + len += addrtoa(mask, 0, p, rest); + + return len; +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/sysctl_net_ipsec.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,199 @@ +/* + * sysctl interface to net IPSEC subsystem. + * Copyright (C) 1998, 1999, 2000, 2001 Richard Guy Briggs. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * RCSID $Id: sysctl_net_ipsec.c,v 1.17 2004/07/10 19:11:18 mcr Exp $ + */ + +/* -*- linux-c -*- + * + * Initiated April 3, 1998, Richard Guy Briggs + */ + +#include +#include + +#include "openswan/ipsec_param.h" + +#ifdef CONFIG_SYSCTL + +#define NET_IPSEC 2112 /* Random number */ +#ifdef CONFIG_KLIPS_DEBUG +extern int debug_ah; +extern int debug_esp; +extern int debug_tunnel; +extern int debug_eroute; +extern int debug_spi; +extern int debug_radij; +extern int debug_netlink; +extern int debug_xform; +extern int debug_rcv; +extern int debug_pfkey; +extern int sysctl_ipsec_debug_verbose; +#ifdef CONFIG_KLIPS_IPCOMP +extern int sysctl_ipsec_debug_ipcomp; +#endif /* CONFIG_KLIPS_IPCOMP */ +#endif /* CONFIG_KLIPS_DEBUG */ + +extern int sysctl_ipsec_icmp; +extern int sysctl_ipsec_inbound_policy_check; +extern int sysctl_ipsec_tos; +int sysctl_ipsec_regress_pfkey_lossage; + +enum { +#ifdef CONFIG_KLIPS_DEBUG + NET_IPSEC_DEBUG_AH=1, + NET_IPSEC_DEBUG_ESP=2, + NET_IPSEC_DEBUG_TUNNEL=3, + NET_IPSEC_DEBUG_EROUTE=4, + NET_IPSEC_DEBUG_SPI=5, + NET_IPSEC_DEBUG_RADIJ=6, + NET_IPSEC_DEBUG_NETLINK=7, + NET_IPSEC_DEBUG_XFORM=8, + NET_IPSEC_DEBUG_RCV=9, + NET_IPSEC_DEBUG_PFKEY=10, + NET_IPSEC_DEBUG_VERBOSE=11, + NET_IPSEC_DEBUG_IPCOMP=12, +#endif /* CONFIG_KLIPS_DEBUG */ + NET_IPSEC_ICMP=13, + NET_IPSEC_INBOUND_POLICY_CHECK=14, + NET_IPSEC_TOS=15, + NET_IPSEC_REGRESS_PFKEY_LOSSAGE=16, +}; + +static ctl_table ipsec_table[] = { +#ifdef CONFIG_KLIPS_DEBUG + { NET_IPSEC_DEBUG_AH, "debug_ah", &debug_ah, + sizeof(int), 0644, NULL, &proc_dointvec}, + { NET_IPSEC_DEBUG_ESP, "debug_esp", &debug_esp, + sizeof(int), 0644, NULL, &proc_dointvec}, + { NET_IPSEC_DEBUG_TUNNEL, "debug_tunnel", &debug_tunnel, + sizeof(int), 0644, NULL, &proc_dointvec}, + { NET_IPSEC_DEBUG_EROUTE, "debug_eroute", &debug_eroute, + sizeof(int), 0644, NULL, &proc_dointvec}, + { NET_IPSEC_DEBUG_SPI, "debug_spi", &debug_spi, + sizeof(int), 0644, NULL, &proc_dointvec}, + { NET_IPSEC_DEBUG_RADIJ, "debug_radij", &debug_radij, + sizeof(int), 0644, NULL, &proc_dointvec}, + { NET_IPSEC_DEBUG_NETLINK, "debug_netlink", &debug_netlink, + sizeof(int), 0644, NULL, &proc_dointvec}, + { NET_IPSEC_DEBUG_XFORM, "debug_xform", &debug_xform, + sizeof(int), 0644, NULL, &proc_dointvec}, + { NET_IPSEC_DEBUG_RCV, "debug_rcv", &debug_rcv, + sizeof(int), 0644, NULL, &proc_dointvec}, + { NET_IPSEC_DEBUG_PFKEY, "debug_pfkey", &debug_pfkey, + sizeof(int), 0644, NULL, &proc_dointvec}, + { NET_IPSEC_DEBUG_VERBOSE, "debug_verbose",&sysctl_ipsec_debug_verbose, + sizeof(int), 0644, NULL, &proc_dointvec}, +#ifdef CONFIG_KLIPS_IPCOMP + { NET_IPSEC_DEBUG_IPCOMP, "debug_ipcomp", &sysctl_ipsec_debug_ipcomp, + sizeof(int), 0644, NULL, &proc_dointvec}, +#endif /* CONFIG_KLIPS_IPCOMP */ + +#ifdef CONFIG_KLIPS_REGRESS + { NET_IPSEC_REGRESS_PFKEY_LOSSAGE, "pfkey_lossage", + &sysctl_ipsec_regress_pfkey_lossage, + sizeof(int), 0644, NULL, &proc_dointvec}, +#endif /* CONFIG_KLIPS_REGRESS */ + +#endif /* CONFIG_KLIPS_DEBUG */ + { NET_IPSEC_ICMP, "icmp", &sysctl_ipsec_icmp, + sizeof(int), 0644, NULL, &proc_dointvec}, + { NET_IPSEC_INBOUND_POLICY_CHECK, "inbound_policy_check", &sysctl_ipsec_inbound_policy_check, + sizeof(int), 0644, NULL, &proc_dointvec}, + { NET_IPSEC_TOS, "tos", &sysctl_ipsec_tos, + sizeof(int), 0644, NULL, &proc_dointvec}, + {0} +}; + +static ctl_table ipsec_net_table[] = { + { NET_IPSEC, "ipsec", NULL, 0, 0555, ipsec_table }, + { 0 } +}; + +static ctl_table ipsec_root_table[] = { + { CTL_NET, "net", NULL, 0, 0555, ipsec_net_table }, + { 0 } +}; + +static struct ctl_table_header *ipsec_table_header; + +int ipsec_sysctl_register(void) +{ + ipsec_table_header = register_sysctl_table(ipsec_root_table, 0); + if (!ipsec_table_header) { + return -ENOMEM; + } + return 0; +} + +void ipsec_sysctl_unregister(void) +{ + unregister_sysctl_table(ipsec_table_header); +} + +#endif /* CONFIG_SYSCTL */ + +/* + * $Log: sysctl_net_ipsec.c,v $ + * Revision 1.17 2004/07/10 19:11:18 mcr + * CONFIG_IPSEC -> CONFIG_KLIPS. + * + * Revision 1.16 2004/04/06 02:49:26 mcr + * pullup of algo code from alg-branch. + * + * Revision 1.15 2002/04/24 07:55:32 mcr + * #include patches and Makefiles for post-reorg compilation. + * + * Revision 1.14 2002/04/24 07:36:35 mcr + * Moved from ./klips/net/ipsec/sysctl_net_ipsec.c,v + * + * Revision 1.13 2002/01/12 02:58:32 mcr + * first regression test causes acquire messages to be lost + * 100% of the time. This is to help testing of pluto. + * + * Revision 1.12 2001/06/14 19:35:13 rgb + * Update copyright date. + * + * Revision 1.11 2001/02/26 19:58:13 rgb + * Drop sysctl_ipsec_{no_eroute_pass,opportunistic}, replaced by magic SAs. + * + * Revision 1.10 2000/09/16 01:50:15 rgb + * Protect sysctl_ipsec_debug_ipcomp with compiler defines too so that the + * linker won't blame rj_delete() for missing symbols. ;-> Damn statics... + * + * Revision 1.9 2000/09/15 23:17:51 rgb + * Moved stuff around to compile with debug off. + * + * Revision 1.8 2000/09/15 11:37:02 rgb + * Merge in heavily modified Svenning Soerensen's + * IPCOMP zlib deflate code. + * + * Revision 1.7 2000/09/15 07:37:15 rgb + * Munged silly log comment that was causing a warning. + * + * Revision 1.6 2000/09/15 04:58:23 rgb + * Added tos runtime switch. + * Removed 'sysctl_ipsec_' prefix from /proc/sys/net/ipsec/ filenames. + * + * Revision 1.5 2000/09/12 03:25:28 rgb + * Filled in and implemented sysctl. + * + * Revision 1.4 1999/04/11 00:29:03 henry + * GPL boilerplate + * + * Revision 1.3 1999/04/06 04:54:29 rgb + * Fix/Add RCSID Id: and Log: bits to make PHMDs happy. This includes + * patch shell fixes. + * + */ --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/trees.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,1214 @@ +/* trees.c -- output deflated data using Huffman coding + * Copyright (C) 1995-2002 Jean-loup Gailly + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* + * ALGORITHM + * + * The "deflation" process uses several Huffman trees. The more + * common source values are represented by shorter bit sequences. + * + * Each code tree is stored in a compressed form which is itself + * a Huffman encoding of the lengths of all the code strings (in + * ascending order by source values). The actual code strings are + * reconstructed from the lengths in the inflate process, as described + * in the deflate specification. + * + * REFERENCES + * + * Deutsch, L.P.,"'Deflate' Compressed Data Format Specification". + * Available in ftp.uu.net:/pub/archiving/zip/doc/deflate-1.1.doc + * + * Storer, James A. + * Data Compression: Methods and Theory, pp. 49-50. + * Computer Science Press, 1988. ISBN 0-7167-8156-5. + * + * Sedgewick, R. + * Algorithms, p290. + * Addison-Wesley, 1983. ISBN 0-201-06672-6. + */ + +/* @(#) $Id: trees.c,v 1.4 2004/07/10 07:48:39 mcr Exp $ */ + +/* #define GEN_TREES_H */ + +#include "deflate.h" + +#ifdef DEBUG +# include +#endif + +/* =========================================================================== + * Constants + */ + +#define MAX_BL_BITS 7 +/* Bit length codes must not exceed MAX_BL_BITS bits */ + +#define END_BLOCK 256 +/* end of block literal code */ + +#define REP_3_6 16 +/* repeat previous bit length 3-6 times (2 bits of repeat count) */ + +#define REPZ_3_10 17 +/* repeat a zero length 3-10 times (3 bits of repeat count) */ + +#define REPZ_11_138 18 +/* repeat a zero length 11-138 times (7 bits of repeat count) */ + +local const int extra_lbits[LENGTH_CODES] /* extra bits for each length code */ + = {0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0}; + +local const int extra_dbits[D_CODES] /* extra bits for each distance code */ + = {0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13}; + +local const int extra_blbits[BL_CODES]/* extra bits for each bit length code */ + = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7}; + +local const uch bl_order[BL_CODES] + = {16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15}; +/* The lengths of the bit length codes are sent in order of decreasing + * probability, to avoid transmitting the lengths for unused bit length codes. + */ + +#define Buf_size (8 * 2*sizeof(char)) +/* Number of bits used within bi_buf. (bi_buf might be implemented on + * more than 16 bits on some systems.) + */ + +/* =========================================================================== + * Local data. These are initialized only once. + */ + +#define DIST_CODE_LEN 512 /* see definition of array dist_code below */ + +#if defined(GEN_TREES_H) || !defined(STDC) +/* non ANSI compilers may not accept trees.h */ + +local ct_data static_ltree[L_CODES+2]; +/* The static literal tree. Since the bit lengths are imposed, there is no + * need for the L_CODES extra codes used during heap construction. However + * The codes 286 and 287 are needed to build a canonical tree (see _tr_init + * below). + */ + +local ct_data static_dtree[D_CODES]; +/* The static distance tree. (Actually a trivial tree since all codes use + * 5 bits.) + */ + +uch _dist_code[DIST_CODE_LEN]; +/* Distance codes. The first 256 values correspond to the distances + * 3 .. 258, the last 256 values correspond to the top 8 bits of + * the 15 bit distances. + */ + +uch _length_code[MAX_MATCH-MIN_MATCH+1]; +/* length code for each normalized match length (0 == MIN_MATCH) */ + +local int base_length[LENGTH_CODES]; +/* First normalized length for each code (0 = MIN_MATCH) */ + +local int base_dist[D_CODES]; +/* First normalized distance for each code (0 = distance of 1) */ + +#else +# include "trees.h" +#endif /* GEN_TREES_H */ + +struct static_tree_desc_s { + const ct_data *static_tree; /* static tree or NULL */ + const intf *extra_bits; /* extra bits for each code or NULL */ + int extra_base; /* base index for extra_bits */ + int elems; /* max number of elements in the tree */ + int max_length; /* max bit length for the codes */ +}; + +local static_tree_desc static_l_desc = +{static_ltree, extra_lbits, LITERALS+1, L_CODES, MAX_BITS}; + +local static_tree_desc static_d_desc = +{static_dtree, extra_dbits, 0, D_CODES, MAX_BITS}; + +local static_tree_desc static_bl_desc = +{(const ct_data *)0, extra_blbits, 0, BL_CODES, MAX_BL_BITS}; + +/* =========================================================================== + * Local (static) routines in this file. + */ + +local void tr_static_init OF((void)); +local void init_block OF((deflate_state *s)); +local void pqdownheap OF((deflate_state *s, ct_data *tree, int k)); +local void gen_bitlen OF((deflate_state *s, tree_desc *desc)); +local void gen_codes OF((ct_data *tree, int max_code, ushf *bl_count)); +local void build_tree OF((deflate_state *s, tree_desc *desc)); +local void scan_tree OF((deflate_state *s, ct_data *tree, int max_code)); +local void send_tree OF((deflate_state *s, ct_data *tree, int max_code)); +local int build_bl_tree OF((deflate_state *s)); +local void send_all_trees OF((deflate_state *s, int lcodes, int dcodes, + int blcodes)); +local void compress_block OF((deflate_state *s, const ct_data *ltree, + const ct_data *dtree)); +local void set_data_type OF((deflate_state *s)); +local unsigned bi_reverse OF((unsigned value, int length)); +local void bi_windup OF((deflate_state *s)); +local void bi_flush OF((deflate_state *s)); +local void copy_block OF((deflate_state *s, charf *buf, unsigned len, + int header)); + +#ifdef GEN_TREES_H +local void gen_trees_header OF((void)); +#endif + +#ifndef DEBUG +# define send_code(s, c, tree) send_bits(s, tree[c].Code, tree[c].Len) + /* Send a code of the given tree. c and tree must not have side effects */ + +#else /* DEBUG */ +# define send_code(s, c, tree) \ + { if (z_verbose>2) fprintf(stderr,"\ncd %3d ",(c)); \ + send_bits(s, tree[c].Code, tree[c].Len); } +#endif + +/* =========================================================================== + * Output a short LSB first on the stream. + * IN assertion: there is enough room in pendingBuf. + */ +#define put_short(s, w) { \ + put_byte(s, (uch)((w) & 0xff)); \ + put_byte(s, (uch)((ush)(w) >> 8)); \ +} + +/* =========================================================================== + * Send a value on a given number of bits. + * IN assertion: length <= 16 and value fits in length bits. + */ +#ifdef DEBUG +local void send_bits OF((deflate_state *s, int value, int length)); + +local void send_bits(s, value, length) + deflate_state *s; + int value; /* value to send */ + int length; /* number of bits */ +{ + Tracevv((stderr," l %2d v %4x ", length, value)); + Assert(length > 0 && length <= 15, "invalid length"); + s->bits_sent += (ulg)length; + + /* If not enough room in bi_buf, use (valid) bits from bi_buf and + * (16 - bi_valid) bits from value, leaving (width - (16-bi_valid)) + * unused bits in value. + */ + if (s->bi_valid > (int)Buf_size - length) { + s->bi_buf |= (value << s->bi_valid); + put_short(s, s->bi_buf); + s->bi_buf = (ush)value >> (Buf_size - s->bi_valid); + s->bi_valid += length - Buf_size; + } else { + s->bi_buf |= value << s->bi_valid; + s->bi_valid += length; + } +} +#else /* !DEBUG */ + +#define send_bits(s, value, length) \ +{ int len = length;\ + if (s->bi_valid > (int)Buf_size - len) {\ + int val = value;\ + s->bi_buf |= (val << s->bi_valid);\ + put_short(s, s->bi_buf);\ + s->bi_buf = (ush)val >> (Buf_size - s->bi_valid);\ + s->bi_valid += len - Buf_size;\ + } else {\ + s->bi_buf |= (value) << s->bi_valid;\ + s->bi_valid += len;\ + }\ +} +#endif /* DEBUG */ + + +#define MAX(a,b) (a >= b ? a : b) +/* the arguments must not have side effects */ + +/* =========================================================================== + * Initialize the various 'constant' tables. + */ +local void tr_static_init() +{ +#if defined(GEN_TREES_H) || !defined(STDC) + static int static_init_done = 0; + int n; /* iterates over tree elements */ + int bits; /* bit counter */ + int length; /* length value */ + int code; /* code value */ + int dist; /* distance index */ + ush bl_count[MAX_BITS+1]; + /* number of codes at each bit length for an optimal tree */ + + if (static_init_done) return; + + /* For some embedded targets, global variables are not initialized: */ + static_l_desc.static_tree = static_ltree; + static_l_desc.extra_bits = extra_lbits; + static_d_desc.static_tree = static_dtree; + static_d_desc.extra_bits = extra_dbits; + static_bl_desc.extra_bits = extra_blbits; + + /* Initialize the mapping length (0..255) -> length code (0..28) */ + length = 0; + for (code = 0; code < LENGTH_CODES-1; code++) { + base_length[code] = length; + for (n = 0; n < (1< dist code (0..29) */ + dist = 0; + for (code = 0 ; code < 16; code++) { + base_dist[code] = dist; + for (n = 0; n < (1<>= 7; /* from now on, all distances are divided by 128 */ + for ( ; code < D_CODES; code++) { + base_dist[code] = dist << 7; + for (n = 0; n < (1<<(extra_dbits[code]-7)); n++) { + _dist_code[256 + dist++] = (uch)code; + } + } + Assert (dist == 256, "tr_static_init: 256+dist != 512"); + + /* Construct the codes of the static literal tree */ + for (bits = 0; bits <= MAX_BITS; bits++) bl_count[bits] = 0; + n = 0; + while (n <= 143) static_ltree[n++].Len = 8, bl_count[8]++; + while (n <= 255) static_ltree[n++].Len = 9, bl_count[9]++; + while (n <= 279) static_ltree[n++].Len = 7, bl_count[7]++; + while (n <= 287) static_ltree[n++].Len = 8, bl_count[8]++; + /* Codes 286 and 287 do not exist, but we must include them in the + * tree construction to get a canonical Huffman tree (longest code + * all ones) + */ + gen_codes((ct_data *)static_ltree, L_CODES+1, bl_count); + + /* The static distance tree is trivial: */ + for (n = 0; n < D_CODES; n++) { + static_dtree[n].Len = 5; + static_dtree[n].Code = bi_reverse((unsigned)n, 5); + } + static_init_done = 1; + +# ifdef GEN_TREES_H + gen_trees_header(); +# endif +#endif /* defined(GEN_TREES_H) || !defined(STDC) */ +} + +/* =========================================================================== + * Genererate the file trees.h describing the static trees. + */ +#ifdef GEN_TREES_H +# ifndef DEBUG +# include +# endif + +# define SEPARATOR(i, last, width) \ + ((i) == (last)? "\n};\n\n" : \ + ((i) % (width) == (width)-1 ? ",\n" : ", ")) + +void gen_trees_header() +{ + FILE *header = fopen("trees.h", "w"); + int i; + + Assert (header != NULL, "Can't open trees.h"); + fprintf(header, + "/* header created automatically with -DGEN_TREES_H */\n\n"); + + fprintf(header, "local const ct_data static_ltree[L_CODES+2] = {\n"); + for (i = 0; i < L_CODES+2; i++) { + fprintf(header, "{{%3u},{%3u}}%s", static_ltree[i].Code, + static_ltree[i].Len, SEPARATOR(i, L_CODES+1, 5)); + } + + fprintf(header, "local const ct_data static_dtree[D_CODES] = {\n"); + for (i = 0; i < D_CODES; i++) { + fprintf(header, "{{%2u},{%2u}}%s", static_dtree[i].Code, + static_dtree[i].Len, SEPARATOR(i, D_CODES-1, 5)); + } + + fprintf(header, "const uch _dist_code[DIST_CODE_LEN] = {\n"); + for (i = 0; i < DIST_CODE_LEN; i++) { + fprintf(header, "%2u%s", _dist_code[i], + SEPARATOR(i, DIST_CODE_LEN-1, 20)); + } + + fprintf(header, "const uch _length_code[MAX_MATCH-MIN_MATCH+1]= {\n"); + for (i = 0; i < MAX_MATCH-MIN_MATCH+1; i++) { + fprintf(header, "%2u%s", _length_code[i], + SEPARATOR(i, MAX_MATCH-MIN_MATCH, 20)); + } + + fprintf(header, "local const int base_length[LENGTH_CODES] = {\n"); + for (i = 0; i < LENGTH_CODES; i++) { + fprintf(header, "%1u%s", base_length[i], + SEPARATOR(i, LENGTH_CODES-1, 20)); + } + + fprintf(header, "local const int base_dist[D_CODES] = {\n"); + for (i = 0; i < D_CODES; i++) { + fprintf(header, "%5u%s", base_dist[i], + SEPARATOR(i, D_CODES-1, 10)); + } + + fclose(header); +} +#endif /* GEN_TREES_H */ + +/* =========================================================================== + * Initialize the tree data structures for a new zlib stream. + */ +void _tr_init(s) + deflate_state *s; +{ + tr_static_init(); + + s->l_desc.dyn_tree = s->dyn_ltree; + s->l_desc.stat_desc = &static_l_desc; + + s->d_desc.dyn_tree = s->dyn_dtree; + s->d_desc.stat_desc = &static_d_desc; + + s->bl_desc.dyn_tree = s->bl_tree; + s->bl_desc.stat_desc = &static_bl_desc; + + s->bi_buf = 0; + s->bi_valid = 0; + s->last_eob_len = 8; /* enough lookahead for inflate */ +#ifdef DEBUG + s->compressed_len = 0L; + s->bits_sent = 0L; +#endif + + /* Initialize the first block of the first file: */ + init_block(s); +} + +/* =========================================================================== + * Initialize a new block. + */ +local void init_block(s) + deflate_state *s; +{ + int n; /* iterates over tree elements */ + + /* Initialize the trees. */ + for (n = 0; n < L_CODES; n++) s->dyn_ltree[n].Freq = 0; + for (n = 0; n < D_CODES; n++) s->dyn_dtree[n].Freq = 0; + for (n = 0; n < BL_CODES; n++) s->bl_tree[n].Freq = 0; + + s->dyn_ltree[END_BLOCK].Freq = 1; + s->opt_len = s->static_len = 0L; + s->last_lit = s->matches = 0; +} + +#define SMALLEST 1 +/* Index within the heap array of least frequent node in the Huffman tree */ + + +/* =========================================================================== + * Remove the smallest element from the heap and recreate the heap with + * one less element. Updates heap and heap_len. + */ +#define pqremove(s, tree, top) \ +{\ + top = s->heap[SMALLEST]; \ + s->heap[SMALLEST] = s->heap[s->heap_len--]; \ + pqdownheap(s, tree, SMALLEST); \ +} + +/* =========================================================================== + * Compares to subtrees, using the tree depth as tie breaker when + * the subtrees have equal frequency. This minimizes the worst case length. + */ +#define smaller(tree, n, m, depth) \ + (tree[n].Freq < tree[m].Freq || \ + (tree[n].Freq == tree[m].Freq && depth[n] <= depth[m])) + +/* =========================================================================== + * Restore the heap property by moving down the tree starting at node k, + * exchanging a node with the smallest of its two sons if necessary, stopping + * when the heap property is re-established (each father smaller than its + * two sons). + */ +local void pqdownheap(s, tree, k) + deflate_state *s; + ct_data *tree; /* the tree to restore */ + int k; /* node to move down */ +{ + int v = s->heap[k]; + int j = k << 1; /* left son of k */ + while (j <= s->heap_len) { + /* Set j to the smallest of the two sons: */ + if (j < s->heap_len && + smaller(tree, s->heap[j+1], s->heap[j], s->depth)) { + j++; + } + /* Exit if v is smaller than both sons */ + if (smaller(tree, v, s->heap[j], s->depth)) break; + + /* Exchange v with the smallest son */ + s->heap[k] = s->heap[j]; k = j; + + /* And continue down the tree, setting j to the left son of k */ + j <<= 1; + } + s->heap[k] = v; +} + +/* =========================================================================== + * Compute the optimal bit lengths for a tree and update the total bit length + * for the current block. + * IN assertion: the fields freq and dad are set, heap[heap_max] and + * above are the tree nodes sorted by increasing frequency. + * OUT assertions: the field len is set to the optimal bit length, the + * array bl_count contains the frequencies for each bit length. + * The length opt_len is updated; static_len is also updated if stree is + * not null. + */ +local void gen_bitlen(s, desc) + deflate_state *s; + tree_desc *desc; /* the tree descriptor */ +{ + ct_data *tree = desc->dyn_tree; + int max_code = desc->max_code; + const ct_data *stree = desc->stat_desc->static_tree; + const intf *extra = desc->stat_desc->extra_bits; + int base = desc->stat_desc->extra_base; + int max_length = desc->stat_desc->max_length; + int h; /* heap index */ + int n, m; /* iterate over the tree elements */ + int bits; /* bit length */ + int xbits; /* extra bits */ + ush f; /* frequency */ + int overflow = 0; /* number of elements with bit length too large */ + + for (bits = 0; bits <= MAX_BITS; bits++) s->bl_count[bits] = 0; + + /* In a first pass, compute the optimal bit lengths (which may + * overflow in the case of the bit length tree). + */ + tree[s->heap[s->heap_max]].Len = 0; /* root of the heap */ + + for (h = s->heap_max+1; h < HEAP_SIZE; h++) { + n = s->heap[h]; + bits = tree[tree[n].Dad].Len + 1; + if (bits > max_length) bits = max_length, overflow++; + tree[n].Len = (ush)bits; + /* We overwrite tree[n].Dad which is no longer needed */ + + if (n > max_code) continue; /* not a leaf node */ + + s->bl_count[bits]++; + xbits = 0; + if (n >= base) xbits = extra[n-base]; + f = tree[n].Freq; + s->opt_len += (ulg)f * (bits + xbits); + if (stree) s->static_len += (ulg)f * (stree[n].Len + xbits); + } + if (overflow == 0) return; + + Trace((stderr,"\nbit length overflow\n")); + /* This happens for example on obj2 and pic of the Calgary corpus */ + + /* Find the first bit length which could increase: */ + do { + bits = max_length-1; + while (s->bl_count[bits] == 0) bits--; + s->bl_count[bits]--; /* move one leaf down the tree */ + s->bl_count[bits+1] += 2; /* move one overflow item as its brother */ + s->bl_count[max_length]--; + /* The brother of the overflow item also moves one step up, + * but this does not affect bl_count[max_length] + */ + overflow -= 2; + } while (overflow > 0); + + /* Now recompute all bit lengths, scanning in increasing frequency. + * h is still equal to HEAP_SIZE. (It is simpler to reconstruct all + * lengths instead of fixing only the wrong ones. This idea is taken + * from 'ar' written by Haruhiko Okumura.) + */ + for (bits = max_length; bits != 0; bits--) { + n = s->bl_count[bits]; + while (n != 0) { + m = s->heap[--h]; + if (m > max_code) continue; + if (tree[m].Len != (unsigned) bits) { + Trace((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits)); + s->opt_len += ((long)bits - (long)tree[m].Len) + *(long)tree[m].Freq; + tree[m].Len = (ush)bits; + } + n--; + } + } +} + +/* =========================================================================== + * Generate the codes for a given tree and bit counts (which need not be + * optimal). + * IN assertion: the array bl_count contains the bit length statistics for + * the given tree and the field len is set for all tree elements. + * OUT assertion: the field code is set for all tree elements of non + * zero code length. + */ +local void gen_codes (tree, max_code, bl_count) + ct_data *tree; /* the tree to decorate */ + int max_code; /* largest code with non zero frequency */ + ushf *bl_count; /* number of codes at each bit length */ +{ + ush next_code[MAX_BITS+1]; /* next code value for each bit length */ + ush code = 0; /* running code value */ + int bits; /* bit index */ + int n; /* code index */ + + /* The distribution counts are first used to generate the code values + * without bit reversal. + */ + for (bits = 1; bits <= MAX_BITS; bits++) { + next_code[bits] = code = (code + bl_count[bits-1]) << 1; + } + /* Check that the bit counts in bl_count are consistent. The last code + * must be all ones. + */ + Assert (code + bl_count[MAX_BITS]-1 == (1<dyn_tree; + const ct_data *stree = desc->stat_desc->static_tree; + int elems = desc->stat_desc->elems; + int n, m; /* iterate over heap elements */ + int max_code = -1; /* largest code with non zero frequency */ + int node; /* new node being created */ + + /* Construct the initial heap, with least frequent element in + * heap[SMALLEST]. The sons of heap[n] are heap[2*n] and heap[2*n+1]. + * heap[0] is not used. + */ + s->heap_len = 0, s->heap_max = HEAP_SIZE; + + for (n = 0; n < elems; n++) { + if (tree[n].Freq != 0) { + s->heap[++(s->heap_len)] = max_code = n; + s->depth[n] = 0; + } else { + tree[n].Len = 0; + } + } + + /* The pkzip format requires that at least one distance code exists, + * and that at least one bit should be sent even if there is only one + * possible code. So to avoid special checks later on we force at least + * two codes of non zero frequency. + */ + while (s->heap_len < 2) { + node = s->heap[++(s->heap_len)] = (max_code < 2 ? ++max_code : 0); + tree[node].Freq = 1; + s->depth[node] = 0; + s->opt_len--; if (stree) s->static_len -= stree[node].Len; + /* node is 0 or 1 so it does not have extra bits */ + } + desc->max_code = max_code; + + /* The elements heap[heap_len/2+1 .. heap_len] are leaves of the tree, + * establish sub-heaps of increasing lengths: + */ + for (n = s->heap_len/2; n >= 1; n--) pqdownheap(s, tree, n); + + /* Construct the Huffman tree by repeatedly combining the least two + * frequent nodes. + */ + node = elems; /* next internal node of the tree */ + do { + pqremove(s, tree, n); /* n = node of least frequency */ + m = s->heap[SMALLEST]; /* m = node of next least frequency */ + + s->heap[--(s->heap_max)] = n; /* keep the nodes sorted by frequency */ + s->heap[--(s->heap_max)] = m; + + /* Create a new node father of n and m */ + tree[node].Freq = tree[n].Freq + tree[m].Freq; + s->depth[node] = (uch) (MAX(s->depth[n], s->depth[m]) + 1); + tree[n].Dad = tree[m].Dad = (ush)node; +#ifdef DUMP_BL_TREE + if (tree == s->bl_tree) { + fprintf(stderr,"\nnode %d(%d), sons %d(%d) %d(%d)", + node, tree[node].Freq, n, tree[n].Freq, m, tree[m].Freq); + } +#endif + /* and insert the new node in the heap */ + s->heap[SMALLEST] = node++; + pqdownheap(s, tree, SMALLEST); + + } while (s->heap_len >= 2); + + s->heap[--(s->heap_max)] = s->heap[SMALLEST]; + + /* At this point, the fields freq and dad are set. We can now + * generate the bit lengths. + */ + gen_bitlen(s, (tree_desc *)desc); + + /* The field len is now set, we can generate the bit codes */ + gen_codes ((ct_data *)tree, max_code, s->bl_count); +} + +/* =========================================================================== + * Scan a literal or distance tree to determine the frequencies of the codes + * in the bit length tree. + */ +local void scan_tree (s, tree, max_code) + deflate_state *s; + ct_data *tree; /* the tree to be scanned */ + int max_code; /* and its largest code of non zero frequency */ +{ + int n; /* iterates over all tree elements */ + int prevlen = -1; /* last emitted length */ + int curlen; /* length of current code */ + int nextlen = tree[0].Len; /* length of next code */ + int count = 0; /* repeat count of the current code */ + int max_count = 7; /* max repeat count */ + int min_count = 4; /* min repeat count */ + + if (nextlen == 0) max_count = 138, min_count = 3; + tree[max_code+1].Len = (ush)0xffff; /* guard */ + + for (n = 0; n <= max_code; n++) { + curlen = nextlen; nextlen = tree[n+1].Len; + if (++count < max_count && curlen == nextlen) { + continue; + } else if (count < min_count) { + s->bl_tree[curlen].Freq += count; + } else if (curlen != 0) { + if (curlen != prevlen) s->bl_tree[curlen].Freq++; + s->bl_tree[REP_3_6].Freq++; + } else if (count <= 10) { + s->bl_tree[REPZ_3_10].Freq++; + } else { + s->bl_tree[REPZ_11_138].Freq++; + } + count = 0; prevlen = curlen; + if (nextlen == 0) { + max_count = 138, min_count = 3; + } else if (curlen == nextlen) { + max_count = 6, min_count = 3; + } else { + max_count = 7, min_count = 4; + } + } +} + +/* =========================================================================== + * Send a literal or distance tree in compressed form, using the codes in + * bl_tree. + */ +local void send_tree (s, tree, max_code) + deflate_state *s; + ct_data *tree; /* the tree to be scanned */ + int max_code; /* and its largest code of non zero frequency */ +{ + int n; /* iterates over all tree elements */ + int prevlen = -1; /* last emitted length */ + int curlen; /* length of current code */ + int nextlen = tree[0].Len; /* length of next code */ + int count = 0; /* repeat count of the current code */ + int max_count = 7; /* max repeat count */ + int min_count = 4; /* min repeat count */ + + /* tree[max_code+1].Len = -1; */ /* guard already set */ + if (nextlen == 0) max_count = 138, min_count = 3; + + for (n = 0; n <= max_code; n++) { + curlen = nextlen; nextlen = tree[n+1].Len; + if (++count < max_count && curlen == nextlen) { + continue; + } else if (count < min_count) { + do { send_code(s, curlen, s->bl_tree); } while (--count != 0); + + } else if (curlen != 0) { + if (curlen != prevlen) { + send_code(s, curlen, s->bl_tree); count--; + } + Assert(count >= 3 && count <= 6, " 3_6?"); + send_code(s, REP_3_6, s->bl_tree); send_bits(s, count-3, 2); + + } else if (count <= 10) { + send_code(s, REPZ_3_10, s->bl_tree); send_bits(s, count-3, 3); + + } else { + send_code(s, REPZ_11_138, s->bl_tree); send_bits(s, count-11, 7); + } + count = 0; prevlen = curlen; + if (nextlen == 0) { + max_count = 138, min_count = 3; + } else if (curlen == nextlen) { + max_count = 6, min_count = 3; + } else { + max_count = 7, min_count = 4; + } + } +} + +/* =========================================================================== + * Construct the Huffman tree for the bit lengths and return the index in + * bl_order of the last bit length code to send. + */ +local int build_bl_tree(s) + deflate_state *s; +{ + int max_blindex; /* index of last bit length code of non zero freq */ + + /* Determine the bit length frequencies for literal and distance trees */ + scan_tree(s, (ct_data *)s->dyn_ltree, s->l_desc.max_code); + scan_tree(s, (ct_data *)s->dyn_dtree, s->d_desc.max_code); + + /* Build the bit length tree: */ + build_tree(s, (tree_desc *)(&(s->bl_desc))); + /* opt_len now includes the length of the tree representations, except + * the lengths of the bit lengths codes and the 5+5+4 bits for the counts. + */ + + /* Determine the number of bit length codes to send. The pkzip format + * requires that at least 4 bit length codes be sent. (appnote.txt says + * 3 but the actual value used is 4.) + */ + for (max_blindex = BL_CODES-1; max_blindex >= 3; max_blindex--) { + if (s->bl_tree[bl_order[max_blindex]].Len != 0) break; + } + /* Update opt_len to include the bit length tree and counts */ + s->opt_len += 3*(max_blindex+1) + 5+5+4; + Tracev((stderr, "\ndyn trees: dyn %ld, stat %ld", + s->opt_len, s->static_len)); + + return max_blindex; +} + +/* =========================================================================== + * Send the header for a block using dynamic Huffman trees: the counts, the + * lengths of the bit length codes, the literal tree and the distance tree. + * IN assertion: lcodes >= 257, dcodes >= 1, blcodes >= 4. + */ +local void send_all_trees(s, lcodes, dcodes, blcodes) + deflate_state *s; + int lcodes, dcodes, blcodes; /* number of codes for each tree */ +{ + int rank; /* index in bl_order */ + + Assert (lcodes >= 257 && dcodes >= 1 && blcodes >= 4, "not enough codes"); + Assert (lcodes <= L_CODES && dcodes <= D_CODES && blcodes <= BL_CODES, + "too many codes"); + Tracev((stderr, "\nbl counts: ")); + send_bits(s, lcodes-257, 5); /* not +255 as stated in appnote.txt */ + send_bits(s, dcodes-1, 5); + send_bits(s, blcodes-4, 4); /* not -3 as stated in appnote.txt */ + for (rank = 0; rank < blcodes; rank++) { + Tracev((stderr, "\nbl code %2d ", bl_order[rank])); + send_bits(s, s->bl_tree[bl_order[rank]].Len, 3); + } + Tracev((stderr, "\nbl tree: sent %ld", s->bits_sent)); + + send_tree(s, (ct_data *)s->dyn_ltree, lcodes-1); /* literal tree */ + Tracev((stderr, "\nlit tree: sent %ld", s->bits_sent)); + + send_tree(s, (ct_data *)s->dyn_dtree, dcodes-1); /* distance tree */ + Tracev((stderr, "\ndist tree: sent %ld", s->bits_sent)); +} + +/* =========================================================================== + * Send a stored block + */ +void _tr_stored_block(s, buf, stored_len, eof) + deflate_state *s; + charf *buf; /* input block */ + ulg stored_len; /* length of input block */ + int eof; /* true if this is the last block for a file */ +{ + send_bits(s, (STORED_BLOCK<<1)+eof, 3); /* send block type */ +#ifdef DEBUG + s->compressed_len = (s->compressed_len + 3 + 7) & (ulg)~7L; + s->compressed_len += (stored_len + 4) << 3; +#endif + copy_block(s, buf, (unsigned)stored_len, 1); /* with header */ +} + +/* =========================================================================== + * Send one empty static block to give enough lookahead for inflate. + * This takes 10 bits, of which 7 may remain in the bit buffer. + * The current inflate code requires 9 bits of lookahead. If the + * last two codes for the previous block (real code plus EOB) were coded + * on 5 bits or less, inflate may have only 5+3 bits of lookahead to decode + * the last real code. In this case we send two empty static blocks instead + * of one. (There are no problems if the previous block is stored or fixed.) + * To simplify the code, we assume the worst case of last real code encoded + * on one bit only. + */ +void _tr_align(s) + deflate_state *s; +{ + send_bits(s, STATIC_TREES<<1, 3); + send_code(s, END_BLOCK, static_ltree); +#ifdef DEBUG + s->compressed_len += 10L; /* 3 for block type, 7 for EOB */ +#endif + bi_flush(s); + /* Of the 10 bits for the empty block, we have already sent + * (10 - bi_valid) bits. The lookahead for the last real code (before + * the EOB of the previous block) was thus at least one plus the length + * of the EOB plus what we have just sent of the empty static block. + */ + if (1 + s->last_eob_len + 10 - s->bi_valid < 9) { + send_bits(s, STATIC_TREES<<1, 3); + send_code(s, END_BLOCK, static_ltree); +#ifdef DEBUG + s->compressed_len += 10L; +#endif + bi_flush(s); + } + s->last_eob_len = 7; +} + +/* =========================================================================== + * Determine the best encoding for the current block: dynamic trees, static + * trees or store, and output the encoded block to the zip file. + */ +void _tr_flush_block(s, buf, stored_len, eof) + deflate_state *s; + charf *buf; /* input block, or NULL if too old */ + ulg stored_len; /* length of input block */ + int eof; /* true if this is the last block for a file */ +{ + ulg opt_lenb, static_lenb; /* opt_len and static_len in bytes */ + int max_blindex = 0; /* index of last bit length code of non zero freq */ + + /* Build the Huffman trees unless a stored block is forced */ + if (s->level > 0) { + + /* Check if the file is ascii or binary */ + if (s->data_type == Z_UNKNOWN) set_data_type(s); + + /* Construct the literal and distance trees */ + build_tree(s, (tree_desc *)(&(s->l_desc))); + Tracev((stderr, "\nlit data: dyn %ld, stat %ld", s->opt_len, + s->static_len)); + + build_tree(s, (tree_desc *)(&(s->d_desc))); + Tracev((stderr, "\ndist data: dyn %ld, stat %ld", s->opt_len, + s->static_len)); + /* At this point, opt_len and static_len are the total bit lengths of + * the compressed block data, excluding the tree representations. + */ + + /* Build the bit length tree for the above two trees, and get the index + * in bl_order of the last bit length code to send. + */ + max_blindex = build_bl_tree(s); + + /* Determine the best encoding. Compute first the block length in bytes*/ + opt_lenb = (s->opt_len+3+7)>>3; + static_lenb = (s->static_len+3+7)>>3; + + Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ", + opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len, + s->last_lit)); + + if (static_lenb <= opt_lenb) opt_lenb = static_lenb; + + } else { + Assert(buf != (char*)0, "lost buf"); + opt_lenb = static_lenb = stored_len + 5; /* force a stored block */ + } + +#ifdef FORCE_STORED + if (buf != (char*)0) { /* force stored block */ +#else + if (stored_len+4 <= opt_lenb && buf != (char*)0) { + /* 4: two words for the lengths */ +#endif + /* The test buf != NULL is only necessary if LIT_BUFSIZE > WSIZE. + * Otherwise we can't have processed more than WSIZE input bytes since + * the last block flush, because compression would have been + * successful. If LIT_BUFSIZE <= WSIZE, it is never too late to + * transform a block into a stored block. + */ + _tr_stored_block(s, buf, stored_len, eof); + +#ifdef FORCE_STATIC + } else if (static_lenb >= 0) { /* force static trees */ +#else + } else if (static_lenb == opt_lenb) { +#endif + send_bits(s, (STATIC_TREES<<1)+eof, 3); + compress_block(s, static_ltree, static_dtree); +#ifdef DEBUG + s->compressed_len += 3 + s->static_len; +#endif + } else { + send_bits(s, (DYN_TREES<<1)+eof, 3); + send_all_trees(s, s->l_desc.max_code+1, s->d_desc.max_code+1, + max_blindex+1); + compress_block(s, s->dyn_ltree, s->dyn_dtree); +#ifdef DEBUG + s->compressed_len += 3 + s->opt_len; +#endif + } + Assert (s->compressed_len == s->bits_sent, "bad compressed size"); + /* The above check is made mod 2^32, for files larger than 512 MB + * and uLong implemented on 32 bits. + */ + init_block(s); + + if (eof) { + bi_windup(s); +#ifdef DEBUG + s->compressed_len += 7; /* align on byte boundary */ +#endif + } + Tracev((stderr,"\ncomprlen %lu(%lu) ", s->compressed_len>>3, + s->compressed_len-7*eof)); +} + +/* =========================================================================== + * Save the match info and tally the frequency counts. Return true if + * the current block must be flushed. + */ +int _tr_tally (s, dist, lc) + deflate_state *s; + unsigned dist; /* distance of matched string */ + unsigned lc; /* match length-MIN_MATCH or unmatched char (if dist==0) */ +{ + s->d_buf[s->last_lit] = (ush)dist; + s->l_buf[s->last_lit++] = (uch)lc; + if (dist == 0) { + /* lc is the unmatched char */ + s->dyn_ltree[lc].Freq++; + } else { + s->matches++; + /* Here, lc is the match length - MIN_MATCH */ + dist--; /* dist = match distance - 1 */ + Assert((ush)dist < (ush)MAX_DIST(s) && + (ush)lc <= (ush)(MAX_MATCH-MIN_MATCH) && + (ush)d_code(dist) < (ush)D_CODES, "_tr_tally: bad match"); + + s->dyn_ltree[_length_code[lc]+LITERALS+1].Freq++; + s->dyn_dtree[d_code(dist)].Freq++; + } + +#ifdef TRUNCATE_BLOCK + /* Try to guess if it is profitable to stop the current block here */ + if ((s->last_lit & 0x1fff) == 0 && s->level > 2) { + /* Compute an upper bound for the compressed length */ + ulg out_length = (ulg)s->last_lit*8L; + ulg in_length = (ulg)((long)s->strstart - s->block_start); + int dcode; + for (dcode = 0; dcode < D_CODES; dcode++) { + out_length += (ulg)s->dyn_dtree[dcode].Freq * + (5L+extra_dbits[dcode]); + } + out_length >>= 3; + Tracev((stderr,"\nlast_lit %u, in %ld, out ~%ld(%ld%%) ", + s->last_lit, in_length, out_length, + 100L - out_length*100L/in_length)); + if (s->matches < s->last_lit/2 && out_length < in_length/2) return 1; + } +#endif + return (s->last_lit == s->lit_bufsize-1); + /* We avoid equality with lit_bufsize because of wraparound at 64K + * on 16 bit machines and because stored blocks are restricted to + * 64K-1 bytes. + */ +} + +/* =========================================================================== + * Send the block data compressed using the given Huffman trees + */ +local void compress_block(s, ltree, dtree) + deflate_state *s; + const ct_data *ltree; /* literal tree */ + const ct_data *dtree; /* distance tree */ +{ + unsigned dist; /* distance of matched string */ + int lc; /* match length or unmatched char (if dist == 0) */ + unsigned lx = 0; /* running index in l_buf */ + unsigned code; /* the code to send */ + int extra; /* number of extra bits to send */ + + if (s->last_lit != 0) do { + dist = s->d_buf[lx]; + lc = s->l_buf[lx++]; + if (dist == 0) { + send_code(s, lc, ltree); /* send a literal byte */ + Tracecv(isgraph(lc), (stderr," '%c' ", lc)); + } else { + /* Here, lc is the match length - MIN_MATCH */ + code = _length_code[lc]; + send_code(s, code+LITERALS+1, ltree); /* send the length code */ + extra = extra_lbits[code]; + if (extra != 0) { + lc -= base_length[code]; + send_bits(s, lc, extra); /* send the extra length bits */ + } + dist--; /* dist is now the match distance - 1 */ + code = d_code(dist); + Assert (code < D_CODES, "bad d_code"); + + send_code(s, code, dtree); /* send the distance code */ + extra = extra_dbits[code]; + if (extra != 0) { + dist -= base_dist[code]; + send_bits(s, dist, extra); /* send the extra distance bits */ + } + } /* literal or match pair ? */ + + /* Check that the overlay between pending_buf and d_buf+l_buf is ok: */ + Assert(s->pending < s->lit_bufsize + 2*lx, "pendingBuf overflow"); + + } while (lx < s->last_lit); + + send_code(s, END_BLOCK, ltree); + s->last_eob_len = ltree[END_BLOCK].Len; +} + +/* =========================================================================== + * Set the data type to ASCII or BINARY, using a crude approximation: + * binary if more than 20% of the bytes are <= 6 or >= 128, ascii otherwise. + * IN assertion: the fields freq of dyn_ltree are set and the total of all + * frequencies does not exceed 64K (to fit in an int on 16 bit machines). + */ +local void set_data_type(s) + deflate_state *s; +{ + int n = 0; + unsigned ascii_freq = 0; + unsigned bin_freq = 0; + while (n < 7) bin_freq += s->dyn_ltree[n++].Freq; + while (n < 128) ascii_freq += s->dyn_ltree[n++].Freq; + while (n < LITERALS) bin_freq += s->dyn_ltree[n++].Freq; + s->data_type = (Byte)(bin_freq > (ascii_freq >> 2) ? Z_BINARY : Z_ASCII); +} + +/* =========================================================================== + * Reverse the first len bits of a code, using straightforward code (a faster + * method would use a table) + * IN assertion: 1 <= len <= 15 + */ +local unsigned bi_reverse(code, len) + unsigned code; /* the value to invert */ + int len; /* its bit length */ +{ + register unsigned res = 0; + do { + res |= code & 1; + code >>= 1, res <<= 1; + } while (--len > 0); + return res >> 1; +} + +/* =========================================================================== + * Flush the bit buffer, keeping at most 7 bits in it. + */ +local void bi_flush(s) + deflate_state *s; +{ + if (s->bi_valid == 16) { + put_short(s, s->bi_buf); + s->bi_buf = 0; + s->bi_valid = 0; + } else if (s->bi_valid >= 8) { + put_byte(s, (Byte)s->bi_buf); + s->bi_buf >>= 8; + s->bi_valid -= 8; + } +} + +/* =========================================================================== + * Flush the bit buffer and align the output on a byte boundary + */ +local void bi_windup(s) + deflate_state *s; +{ + if (s->bi_valid > 8) { + put_short(s, s->bi_buf); + } else if (s->bi_valid > 0) { + put_byte(s, (Byte)s->bi_buf); + } + s->bi_buf = 0; + s->bi_valid = 0; +#ifdef DEBUG + s->bits_sent = (s->bits_sent+7) & ~7; +#endif +} + +/* =========================================================================== + * Copy a stored block, storing first the length and its + * one's complement if requested. + */ +local void copy_block(s, buf, len, header) + deflate_state *s; + charf *buf; /* the input data */ + unsigned len; /* its length */ + int header; /* true if block header must be written */ +{ + bi_windup(s); /* align on byte boundary */ + s->last_eob_len = 8; /* enough lookahead for inflate */ + + if (header) { + put_short(s, (ush)len); + put_short(s, (ush)~len); +#ifdef DEBUG + s->bits_sent += 2*16; +#endif + } +#ifdef DEBUG + s->bits_sent += (ulg)len<<3; +#endif + while (len--) { + put_byte(s, *buf++); + } +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/trees.h Mon Feb 9 13:51:03 2004 @@ -0,0 +1,128 @@ +/* header created automatically with -DGEN_TREES_H */ + +local const ct_data static_ltree[L_CODES+2] = { +{{ 12},{ 8}}, {{140},{ 8}}, {{ 76},{ 8}}, {{204},{ 8}}, {{ 44},{ 8}}, +{{172},{ 8}}, {{108},{ 8}}, {{236},{ 8}}, {{ 28},{ 8}}, {{156},{ 8}}, +{{ 92},{ 8}}, {{220},{ 8}}, {{ 60},{ 8}}, {{188},{ 8}}, {{124},{ 8}}, +{{252},{ 8}}, {{ 2},{ 8}}, {{130},{ 8}}, {{ 66},{ 8}}, {{194},{ 8}}, +{{ 34},{ 8}}, {{162},{ 8}}, {{ 98},{ 8}}, {{226},{ 8}}, {{ 18},{ 8}}, +{{146},{ 8}}, {{ 82},{ 8}}, {{210},{ 8}}, {{ 50},{ 8}}, {{178},{ 8}}, +{{114},{ 8}}, {{242},{ 8}}, {{ 10},{ 8}}, {{138},{ 8}}, {{ 74},{ 8}}, +{{202},{ 8}}, {{ 42},{ 8}}, {{170},{ 8}}, {{106},{ 8}}, {{234},{ 8}}, +{{ 26},{ 8}}, {{154},{ 8}}, {{ 90},{ 8}}, {{218},{ 8}}, {{ 58},{ 8}}, +{{186},{ 8}}, {{122},{ 8}}, {{250},{ 8}}, {{ 6},{ 8}}, {{134},{ 8}}, +{{ 70},{ 8}}, {{198},{ 8}}, {{ 38},{ 8}}, {{166},{ 8}}, {{102},{ 8}}, +{{230},{ 8}}, {{ 22},{ 8}}, {{150},{ 8}}, {{ 86},{ 8}}, {{214},{ 8}}, +{{ 54},{ 8}}, {{182},{ 8}}, {{118},{ 8}}, {{246},{ 8}}, {{ 14},{ 8}}, +{{142},{ 8}}, {{ 78},{ 8}}, {{206},{ 8}}, {{ 46},{ 8}}, {{174},{ 8}}, +{{110},{ 8}}, {{238},{ 8}}, {{ 30},{ 8}}, {{158},{ 8}}, {{ 94},{ 8}}, +{{222},{ 8}}, {{ 62},{ 8}}, {{190},{ 8}}, {{126},{ 8}}, {{254},{ 8}}, +{{ 1},{ 8}}, {{129},{ 8}}, {{ 65},{ 8}}, {{193},{ 8}}, {{ 33},{ 8}}, +{{161},{ 8}}, {{ 97},{ 8}}, {{225},{ 8}}, {{ 17},{ 8}}, {{145},{ 8}}, +{{ 81},{ 8}}, {{209},{ 8}}, {{ 49},{ 8}}, {{177},{ 8}}, {{113},{ 8}}, +{{241},{ 8}}, {{ 9},{ 8}}, {{137},{ 8}}, {{ 73},{ 8}}, {{201},{ 8}}, +{{ 41},{ 8}}, {{169},{ 8}}, {{105},{ 8}}, {{233},{ 8}}, {{ 25},{ 8}}, +{{153},{ 8}}, {{ 89},{ 8}}, {{217},{ 8}}, {{ 57},{ 8}}, {{185},{ 8}}, +{{121},{ 8}}, {{249},{ 8}}, {{ 5},{ 8}}, {{133},{ 8}}, {{ 69},{ 8}}, +{{197},{ 8}}, {{ 37},{ 8}}, {{165},{ 8}}, {{101},{ 8}}, {{229},{ 8}}, +{{ 21},{ 8}}, {{149},{ 8}}, {{ 85},{ 8}}, {{213},{ 8}}, {{ 53},{ 8}}, +{{181},{ 8}}, {{117},{ 8}}, {{245},{ 8}}, {{ 13},{ 8}}, {{141},{ 8}}, +{{ 77},{ 8}}, {{205},{ 8}}, {{ 45},{ 8}}, {{173},{ 8}}, {{109},{ 8}}, +{{237},{ 8}}, {{ 29},{ 8}}, {{157},{ 8}}, {{ 93},{ 8}}, {{221},{ 8}}, +{{ 61},{ 8}}, {{189},{ 8}}, {{125},{ 8}}, {{253},{ 8}}, {{ 19},{ 9}}, +{{275},{ 9}}, {{147},{ 9}}, {{403},{ 9}}, {{ 83},{ 9}}, {{339},{ 9}}, +{{211},{ 9}}, {{467},{ 9}}, {{ 51},{ 9}}, {{307},{ 9}}, {{179},{ 9}}, +{{435},{ 9}}, {{115},{ 9}}, {{371},{ 9}}, {{243},{ 9}}, {{499},{ 9}}, +{{ 11},{ 9}}, {{267},{ 9}}, {{139},{ 9}}, {{395},{ 9}}, {{ 75},{ 9}}, +{{331},{ 9}}, {{203},{ 9}}, {{459},{ 9}}, {{ 43},{ 9}}, {{299},{ 9}}, +{{171},{ 9}}, {{427},{ 9}}, {{107},{ 9}}, {{363},{ 9}}, {{235},{ 9}}, +{{491},{ 9}}, {{ 27},{ 9}}, {{283},{ 9}}, {{155},{ 9}}, {{411},{ 9}}, +{{ 91},{ 9}}, {{347},{ 9}}, {{219},{ 9}}, {{475},{ 9}}, {{ 59},{ 9}}, +{{315},{ 9}}, {{187},{ 9}}, {{443},{ 9}}, {{123},{ 9}}, {{379},{ 9}}, +{{251},{ 9}}, {{507},{ 9}}, {{ 7},{ 9}}, {{263},{ 9}}, {{135},{ 9}}, +{{391},{ 9}}, {{ 71},{ 9}}, {{327},{ 9}}, {{199},{ 9}}, {{455},{ 9}}, +{{ 39},{ 9}}, {{295},{ 9}}, {{167},{ 9}}, {{423},{ 9}}, {{103},{ 9}}, +{{359},{ 9}}, {{231},{ 9}}, {{487},{ 9}}, {{ 23},{ 9}}, {{279},{ 9}}, +{{151},{ 9}}, {{407},{ 9}}, {{ 87},{ 9}}, {{343},{ 9}}, {{215},{ 9}}, +{{471},{ 9}}, {{ 55},{ 9}}, {{311},{ 9}}, {{183},{ 9}}, {{439},{ 9}}, +{{119},{ 9}}, {{375},{ 9}}, {{247},{ 9}}, {{503},{ 9}}, {{ 15},{ 9}}, +{{271},{ 9}}, {{143},{ 9}}, {{399},{ 9}}, {{ 79},{ 9}}, {{335},{ 9}}, +{{207},{ 9}}, {{463},{ 9}}, {{ 47},{ 9}}, {{303},{ 9}}, {{175},{ 9}}, +{{431},{ 9}}, {{111},{ 9}}, {{367},{ 9}}, {{239},{ 9}}, {{495},{ 9}}, +{{ 31},{ 9}}, {{287},{ 9}}, {{159},{ 9}}, {{415},{ 9}}, {{ 95},{ 9}}, +{{351},{ 9}}, {{223},{ 9}}, {{479},{ 9}}, {{ 63},{ 9}}, {{319},{ 9}}, +{{191},{ 9}}, {{447},{ 9}}, {{127},{ 9}}, {{383},{ 9}}, {{255},{ 9}}, +{{511},{ 9}}, {{ 0},{ 7}}, {{ 64},{ 7}}, {{ 32},{ 7}}, {{ 96},{ 7}}, +{{ 16},{ 7}}, {{ 80},{ 7}}, {{ 48},{ 7}}, {{112},{ 7}}, {{ 8},{ 7}}, +{{ 72},{ 7}}, {{ 40},{ 7}}, {{104},{ 7}}, {{ 24},{ 7}}, {{ 88},{ 7}}, +{{ 56},{ 7}}, {{120},{ 7}}, {{ 4},{ 7}}, {{ 68},{ 7}}, {{ 36},{ 7}}, +{{100},{ 7}}, {{ 20},{ 7}}, {{ 84},{ 7}}, {{ 52},{ 7}}, {{116},{ 7}}, +{{ 3},{ 8}}, {{131},{ 8}}, {{ 67},{ 8}}, {{195},{ 8}}, {{ 35},{ 8}}, +{{163},{ 8}}, {{ 99},{ 8}}, {{227},{ 8}} +}; + +local const ct_data static_dtree[D_CODES] = { +{{ 0},{ 5}}, {{16},{ 5}}, {{ 8},{ 5}}, {{24},{ 5}}, {{ 4},{ 5}}, +{{20},{ 5}}, {{12},{ 5}}, {{28},{ 5}}, {{ 2},{ 5}}, {{18},{ 5}}, +{{10},{ 5}}, {{26},{ 5}}, {{ 6},{ 5}}, {{22},{ 5}}, {{14},{ 5}}, +{{30},{ 5}}, {{ 1},{ 5}}, {{17},{ 5}}, {{ 9},{ 5}}, {{25},{ 5}}, +{{ 5},{ 5}}, {{21},{ 5}}, {{13},{ 5}}, {{29},{ 5}}, {{ 3},{ 5}}, +{{19},{ 5}}, {{11},{ 5}}, {{27},{ 5}}, {{ 7},{ 5}}, {{23},{ 5}} +}; + +const uch _dist_code[DIST_CODE_LEN] = { + 0, 1, 2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, + 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, +10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, +11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, +12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, +13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, +13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, +14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, +14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, +14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, +15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, +15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, +15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 0, 0, 16, 17, +18, 18, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, +23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, +24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, +26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, +26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, +27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, +27, 27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, +28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, +28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, +28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, +29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, +29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, +29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29 +}; + +const uch _length_code[MAX_MATCH-MIN_MATCH+1]= { + 0, 1, 2, 3, 4, 5, 6, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 12, 12, +13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, +17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19, +19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, +21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, +22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23, +23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, +24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, +25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, +25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, 26, 26, +26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, +26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, +27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28 +}; + +local const int base_length[LENGTH_CODES] = { +0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16, 20, 24, 28, 32, 40, 48, 56, +64, 80, 96, 112, 128, 160, 192, 224, 0 +}; + +local const int base_dist[D_CODES] = { + 0, 1, 2, 3, 4, 6, 8, 12, 16, 24, + 32, 48, 64, 96, 128, 192, 256, 384, 512, 768, + 1024, 1536, 2048, 3072, 4096, 6144, 8192, 12288, 16384, 24576 +}; + --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ultoa.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,66 @@ +/* + * convert unsigned long to ASCII + * Copyright (C) 1998, 1999 Henry Spencer. + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + * License for more details. + * + * RCSID $Id: ultoa.c,v 1.10 2004/07/10 07:48:37 mcr Exp $ + */ +#include "openswan.h" + +/* + - ultoa - convert unsigned long to decimal ASCII + */ +size_t /* length required for full conversion */ +ultoa(n, base, dst, dstlen) +unsigned long n; +int base; +char *dst; /* need not be valid if dstlen is 0 */ +size_t dstlen; +{ + char buf[3*sizeof(unsigned long) + 1]; + char *bufend = buf + sizeof(buf); + size_t len; + char *p; + static char hex[] = "0123456789abcdef"; + + p = bufend; + *--p = '\0'; + if (base == 10) { + do { + *--p = n%10 + '0'; + n /= 10; + } while (n != 0); + } else if (base == 16) { + do { + *--p = hex[n&0xf]; + n >>= 4; + } while (n != 0); + *--p = 'x'; + *--p = '0'; + } else if (base == 8) { + do { + *--p = (n&07) + '0'; + n >>= 3; + } while (n != 0); + *--p = '0'; + } else + *--p = '?'; + + len = bufend - p; + + if (dstlen > 0) { + if (len > dstlen) + *(p + dstlen - 1) = '\0'; + strcpy(dst, p); + } + return len; +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/ultot.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,82 @@ +/* + * convert unsigned long to text + * Copyright (C) 2000 Henry Spencer. + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + * License for more details. + * + * RCSID $Id: ultot.c,v 1.5 2004/07/10 07:48:37 mcr Exp $ + */ +#include "openswan.h" + +/* + - ultot - convert unsigned long to text + */ +size_t /* length required for full conversion */ +ultot(n, base, dst, dstlen) +unsigned long n; +int base; +char *dst; /* need not be valid if dstlen is 0 */ +size_t dstlen; +{ + char buf[3*sizeof(unsigned long) + 1]; + char *bufend = buf + sizeof(buf); + size_t len; + char *p; + static char hex[] = "0123456789abcdef"; +# define HEX32 (32/4) + + p = bufend; + *--p = '\0'; + switch (base) { + case 10: + case 'd': + do { + *--p = n%10 + '0'; + n /= 10; + } while (n != 0); + break; + case 16: + case 17: + case 'x': + do { + *--p = hex[n&0xf]; + n >>= 4; + } while (n != 0); + if (base == 17) + while (bufend - p < HEX32 + 1) + *--p = '0'; + if (base == 'x') { + *--p = 'x'; + *--p = '0'; + } + break; + case 8: + case 'o': + do { + *--p = (n&07) + '0'; + n >>= 3; + } while (n != 0); + if (base == 'o') + *--p = '0'; + break; + default: + return 0; + break; + } + + len = bufend - p; + if (dstlen > 0) { + if (len > dstlen) + *(p + dstlen - 1) = '\0'; + strcpy(dst, p); + } + return len; +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/version.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,44 @@ +/* + * return IPsec version information + * Copyright (C) 2001 Henry Spencer. + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See . + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + * License for more details. + * + * RCSID $Id: version.in.c,v 1.2 2004/04/14 05:09:46 ken Exp $ + */ + +#ifdef __KERNEL__ +#include +#endif + +#include "openswan.h" + +#define V "2.4.9" /* substituted in by Makefile */ +static const char openswan_number[] = V; +static const char openswan_string[] = "Openswan " V; + +/* + - ipsec_version_code - return IPsec version number/code, as string + */ +const char * +ipsec_version_code() +{ + return openswan_number; +} + +/* + - ipsec_version_string - return full version string + */ +const char * +ipsec_version_string() +{ + return openswan_string; +} --- /dev/null Tue Mar 11 13:02:56 2003 +++ linux/net/ipsec/zutil.c Mon Feb 9 13:51:03 2004 @@ -0,0 +1,227 @@ +/* zutil.c -- target dependent utility functions for the compression library + * Copyright (C) 1995-2002 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* @(#) $Id: zutil.c,v 1.5 2004/07/10 07:48:40 mcr Exp $ */ + +#include + +#define MY_ZCALLOC + +struct internal_state {int dummy;}; /* for buggy compilers */ + +#ifndef STDC +extern void exit OF((int)); +#endif + +const char *z_errmsg[10] = { +"need dictionary", /* Z_NEED_DICT 2 */ +"stream end", /* Z_STREAM_END 1 */ +"", /* Z_OK 0 */ +"file error", /* Z_ERRNO (-1) */ +"stream error", /* Z_STREAM_ERROR (-2) */ +"data error", /* Z_DATA_ERROR (-3) */ +"insufficient memory", /* Z_MEM_ERROR (-4) */ +"buffer error", /* Z_BUF_ERROR (-5) */ +"incompatible version",/* Z_VERSION_ERROR (-6) */ +""}; + + +const char * ZEXPORT zlibVersion() +{ + return ZLIB_VERSION; +} + +#ifdef DEBUG + +# ifndef verbose +# define verbose 0 +# endif +int z_verbose = verbose; + +void z_error (m) + char *m; +{ + fprintf(stderr, "%s\n", m); + exit(1); +} +#endif + +/* exported to allow conversion of error code to string for compress() and + * uncompress() + */ +const char * ZEXPORT zError(err) + int err; +{ + return ERR_MSG(err); +} + + +#ifndef HAVE_MEMCPY + +void zmemcpy(dest, source, len) + Bytef* dest; + const Bytef* source; + uInt len; +{ + if (len == 0) return; + do { + *dest++ = *source++; /* ??? to be unrolled */ + } while (--len != 0); +} + +int zmemcmp(s1, s2, len) + const Bytef* s1; + const Bytef* s2; + uInt len; +{ + uInt j; + + for (j = 0; j < len; j++) { + if (s1[j] != s2[j]) return 2*(s1[j] > s2[j])-1; + } + return 0; +} + +void zmemzero(dest, len) + Bytef* dest; + uInt len; +{ + if (len == 0) return; + do { + *dest++ = 0; /* ??? to be unrolled */ + } while (--len != 0); +} +#endif + +#ifdef __TURBOC__ +#if (defined( __BORLANDC__) || !defined(SMALL_MEDIUM)) && !defined(__32BIT__) +/* Small and medium model in Turbo C are for now limited to near allocation + * with reduced MAX_WBITS and MAX_MEM_LEVEL + */ +# define MY_ZCALLOC + +/* Turbo C malloc() does not allow dynamic allocation of 64K bytes + * and farmalloc(64K) returns a pointer with an offset of 8, so we + * must fix the pointer. Warning: the pointer must be put back to its + * original form in order to free it, use zcfree(). + */ + +#define MAX_PTR 10 +/* 10*64K = 640K */ + +local int next_ptr = 0; + +typedef struct ptr_table_s { + voidpf org_ptr; + voidpf new_ptr; +} ptr_table; + +local ptr_table table[MAX_PTR]; +/* This table is used to remember the original form of pointers + * to large buffers (64K). Such pointers are normalized with a zero offset. + * Since MSDOS is not a preemptive multitasking OS, this table is not + * protected from concurrent access. This hack doesn't work anyway on + * a protected system like OS/2. Use Microsoft C instead. + */ + +voidpf zcalloc (voidpf opaque, unsigned items, unsigned size) +{ + voidpf buf = opaque; /* just to make some compilers happy */ + ulg bsize = (ulg)items*size; + + /* If we allocate less than 65520 bytes, we assume that farmalloc + * will return a usable pointer which doesn't have to be normalized. + */ + if (bsize < 65520L) { + buf = farmalloc(bsize); + if (*(ush*)&buf != 0) return buf; + } else { + buf = farmalloc(bsize + 16L); + } + if (buf == NULL || next_ptr >= MAX_PTR) return NULL; + table[next_ptr].org_ptr = buf; + + /* Normalize the pointer to seg:0 */ + *((ush*)&buf+1) += ((ush)((uch*)buf-0) + 15) >> 4; + *(ush*)&buf = 0; + table[next_ptr++].new_ptr = buf; + return buf; +} + +void zcfree (voidpf opaque, voidpf ptr) +{ + int n; + if (*(ush*)&ptr != 0) { /* object < 64K */ + farfree(ptr); + return; + } + /* Find the original pointer */ + for (n = 0; n < next_ptr; n++) { + if (ptr != table[n].new_ptr) continue; + + farfree(table[n].org_ptr); + while (++n < next_ptr) { + table[n-1] = table[n]; + } + next_ptr--; + return; + } + ptr = opaque; /* just to make some compilers happy */ + Assert(0, "zcfree: ptr not found"); +} +#endif +#endif /* __TURBOC__ */ + + +#if defined(M_I86) && !defined(__32BIT__) +/* Microsoft C in 16-bit mode */ + +# define MY_ZCALLOC + +#if (!defined(_MSC_VER) || (_MSC_VER <= 600)) +# define _halloc halloc +# define _hfree hfree +#endif + +voidpf zcalloc (voidpf opaque, unsigned items, unsigned size) +{ + if (opaque) opaque = 0; /* to make compiler happy */ + return _halloc((long)items, size); +} + +void zcfree (voidpf opaque, voidpf ptr) +{ + if (opaque) opaque = 0; /* to make compiler happy */ + _hfree(ptr); +} + +#endif /* MSC */ + + +#ifndef MY_ZCALLOC /* Any system without a special alloc function */ + +#ifndef STDC +extern voidp calloc OF((uInt items, uInt size)); +extern void free OF((voidpf ptr)); +#endif + +voidpf zcalloc (opaque, items, size) + voidpf opaque; + unsigned items; + unsigned size; +{ + if (opaque) items += size - size; /* make compiler happy */ + return (voidpf)calloc(items, size); +} + +void zcfree (opaque, ptr) + voidpf opaque; + voidpf ptr; +{ + free(ptr); + if (opaque) return; /* make compiler happy */ +} + +#endif /* MY_ZCALLOC */ --- swan26/net/ipv4/af_inet.c.orig Wed Jun 16 01:18:58 2004 +++ swan26/net/ipv4/af_inet.c Fri Aug 13 23:09:27 2004 @@ -1169,6 +1169,18 @@ #if defined(CONFIG_IP_MROUTE) ip_mr_init(); #endif + +#if defined(CONFIG_KLIPS) + { + extern int ipsec_klips_init(void); + /* + * Initialise AF_INET ESP and AH protocol support including + * e-routing and SA tables + */ + ipsec_klips_init(); + } +#endif /* CONFIG_IPSEC */ + /* * Initialise per-cpu ipv4 mibs */ --- /dev/null Fri May 10 13:59:54 2002 +++ linux/net/ipsec/Makefile.ver Sun Jul 28 22:10:40 2002 @@ -0,0 +1 @@ +IPSECVERSION=2.4.9