diff options
Diffstat (limited to 'target/linux/generic/files/crypto/ocf/cryptocteon')
4 files changed, 2887 insertions, 0 deletions
diff --git a/target/linux/generic/files/crypto/ocf/cryptocteon/Makefile b/target/linux/generic/files/crypto/ocf/cryptocteon/Makefile new file mode 100644 index 000000000..eeed0d641 --- /dev/null +++ b/target/linux/generic/files/crypto/ocf/cryptocteon/Makefile @@ -0,0 +1,17 @@ +# for SGlinux builds +-include $(ROOTDIR)/modules/.config + +obj-$(CONFIG_OCF_CRYPTOCTEON) += cryptocteon.o + +obj ?= . +EXTRA_CFLAGS += -I$(obj)/.. -I$(obj)/ + +ifdef CONFIG_OCF_CRYPTOCTEON +# you need the cavium crypto component installed +EXTRA_CFLAGS += -I$(ROOTDIR)/prop/include +endif + +ifdef TOPDIR +-include $(TOPDIR)/Rules.make +endif + diff --git a/target/linux/generic/files/crypto/ocf/cryptocteon/README.txt b/target/linux/generic/files/crypto/ocf/cryptocteon/README.txt new file mode 100644 index 000000000..807b2e518 --- /dev/null +++ b/target/linux/generic/files/crypto/ocf/cryptocteon/README.txt @@ -0,0 +1,11 @@ + +You will need the CRYPTO package installed to build this driver, and +potentially the ADK. + +cavium_crypto sourced from: + + adk/components/source/cavium_ipsec_kame/cavium_ipsec.c + +and significantly modified to suit use with OCF. All original +copyright/ownership headers retained. + diff --git a/target/linux/generic/files/crypto/ocf/cryptocteon/cavium_crypto.c b/target/linux/generic/files/crypto/ocf/cryptocteon/cavium_crypto.c new file mode 100644 index 000000000..ceaf77c5c --- /dev/null +++ b/target/linux/generic/files/crypto/ocf/cryptocteon/cavium_crypto.c @@ -0,0 +1,2283 @@ +/* + * Copyright (c) 2009 David McCullough <david.mccullough@securecomputing.com> + * + * Copyright (c) 2003-2007 Cavium Networks (support@cavium.com). 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 Cavium Networks + * 4. Cavium Networks' name may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * This Software, including technical data, may be subject to U.S. export + * control laws, including the U.S. Export Administration Act and its + * associated regulations, and may be subject to export or import regulations + * in other countries. You warrant that You will comply strictly in all + * respects with all such regulations and acknowledge that you have the + * responsibility to obtain licenses to export, re-export or import the + * Software. + * + * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" AND + * WITH ALL FAULTS AND CAVIUM MAKES NO PROMISES, REPRESENTATIONS OR WARRANTIES, + * EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO THE + * SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR + * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM + * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE, + * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF + * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR + * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR + * PERFORMANCE OF THE SOFTWARE LIES WITH YOU. +*/ +/****************************************************************************/ + +#include <linux/scatterlist.h> +#include <asm/octeon/octeon.h> +#include "octeon-asm.h" + +/****************************************************************************/ + +extern unsigned long octeon_crypto_enable(struct octeon_cop2_state *); +extern void octeon_crypto_disable(struct octeon_cop2_state *, unsigned long); + +#define SG_INIT(s, p, i, l) \ + { \ + (i) = 0; \ + (l) = (s)[0].length; \ + (p) = (typeof(p)) sg_virt((s)); \ + CVMX_PREFETCH0((p)); \ + } + +#define SG_CONSUME(s, p, i, l) \ + { \ + (p)++; \ + (l) -= sizeof(*(p)); \ + if ((l) < 0) { \ + dprintk("%s, %d: l = %d\n", __FILE__, __LINE__, l); \ + } else if ((l) == 0) { \ + (i)++; \ + (l) = (s)[0].length; \ + (p) = (typeof(p)) sg_virt(s); \ + CVMX_PREFETCH0((p)); \ + } \ + } + +#define ESP_HEADER_LENGTH 8 +#define DES_CBC_IV_LENGTH 8 +#define AES_CBC_IV_LENGTH 16 +#define ESP_HMAC_LEN 12 + +#define ESP_HEADER_LENGTH 8 +#define DES_CBC_IV_LENGTH 8 + +/****************************************************************************/ + +#define CVM_LOAD_SHA_UNIT(dat, next) { \ + if (next == 0) { \ + next = 1; \ + CVMX_MT_HSH_DAT (dat, 0); \ + } else if (next == 1) { \ + next = 2; \ + CVMX_MT_HSH_DAT (dat, 1); \ + } else if (next == 2) { \ + next = 3; \ + CVMX_MT_HSH_DAT (dat, 2); \ + } else if (next == 3) { \ + next = 4; \ + CVMX_MT_HSH_DAT (dat, 3); \ + } else if (next == 4) { \ + next = 5; \ + CVMX_MT_HSH_DAT (dat, 4); \ + } else if (next == 5) { \ + next = 6; \ + CVMX_MT_HSH_DAT (dat, 5); \ + } else if (next == 6) { \ + next = 7; \ + CVMX_MT_HSH_DAT (dat, 6); \ + } else { \ + CVMX_MT_HSH_STARTSHA (dat); \ + next = 0; \ + } \ +} + +#define CVM_LOAD2_SHA_UNIT(dat1, dat2, next) { \ + if (next == 0) { \ + CVMX_MT_HSH_DAT (dat1, 0); \ + CVMX_MT_HSH_DAT (dat2, 1); \ + next = 2; \ + } else if (next == 1) { \ + CVMX_MT_HSH_DAT (dat1, 1); \ + CVMX_MT_HSH_DAT (dat2, 2); \ + next = 3; \ + } else if (next == 2) { \ + CVMX_MT_HSH_DAT (dat1, 2); \ + CVMX_MT_HSH_DAT (dat2, 3); \ + next = 4; \ + } else if (next == 3) { \ + CVMX_MT_HSH_DAT (dat1, 3); \ + CVMX_MT_HSH_DAT (dat2, 4); \ + next = 5; \ + } else if (next == 4) { \ + CVMX_MT_HSH_DAT (dat1, 4); \ + CVMX_MT_HSH_DAT (dat2, 5); \ + next = 6; \ + } else if (next == 5) { \ + CVMX_MT_HSH_DAT (dat1, 5); \ + CVMX_MT_HSH_DAT (dat2, 6); \ + next = 7; \ + } else if (next == 6) { \ + CVMX_MT_HSH_DAT (dat1, 6); \ + CVMX_MT_HSH_STARTSHA (dat2); \ + next = 0; \ + } else { \ + CVMX_MT_HSH_STARTSHA (dat1); \ + CVMX_MT_HSH_DAT (dat2, 0); \ + next = 1; \ + } \ +} + +/****************************************************************************/ + +#define CVM_LOAD_MD5_UNIT(dat, next) { \ + if (next == 0) { \ + next = 1; \ + CVMX_MT_HSH_DAT (dat, 0); \ + } else if (next == 1) { \ + next = 2; \ + CVMX_MT_HSH_DAT (dat, 1); \ + } else if (next == 2) { \ + next = 3; \ + CVMX_MT_HSH_DAT (dat, 2); \ + } else if (next == 3) { \ + next = 4; \ + CVMX_MT_HSH_DAT (dat, 3); \ + } else if (next == 4) { \ + next = 5; \ + CVMX_MT_HSH_DAT (dat, 4); \ + } else if (next == 5) { \ + next = 6; \ + CVMX_MT_HSH_DAT (dat, 5); \ + } else if (next == 6) { \ + next = 7; \ + CVMX_MT_HSH_DAT (dat, 6); \ + } else { \ + CVMX_MT_HSH_STARTMD5 (dat); \ + next = 0; \ + } \ +} + +#define CVM_LOAD2_MD5_UNIT(dat1, dat2, next) { \ + if (next == 0) { \ + CVMX_MT_HSH_DAT (dat1, 0); \ + CVMX_MT_HSH_DAT (dat2, 1); \ + next = 2; \ + } else if (next == 1) { \ + CVMX_MT_HSH_DAT (dat1, 1); \ + CVMX_MT_HSH_DAT (dat2, 2); \ + next = 3; \ + } else if (next == 2) { \ + CVMX_MT_HSH_DAT (dat1, 2); \ + CVMX_MT_HSH_DAT (dat2, 3); \ + next = 4; \ + } else if (next == 3) { \ + CVMX_MT_HSH_DAT (dat1, 3); \ + CVMX_MT_HSH_DAT (dat2, 4); \ + next = 5; \ + } else if (next == 4) { \ + CVMX_MT_HSH_DAT (dat1, 4); \ + CVMX_MT_HSH_DAT (dat2, 5); \ + next = 6; \ + } else if (next == 5) { \ + CVMX_MT_HSH_DAT (dat1, 5); \ + CVMX_MT_HSH_DAT (dat2, 6); \ + next = 7; \ + } else if (next == 6) { \ + CVMX_MT_HSH_DAT (dat1, 6); \ + CVMX_MT_HSH_STARTMD5 (dat2); \ + next = 0; \ + } else { \ + CVMX_MT_HSH_STARTMD5 (dat1); \ + CVMX_MT_HSH_DAT (dat2, 0); \ + next = 1; \ + } \ +} + +/****************************************************************************/ + +static inline uint64_t +swap64(uint64_t a) +{ + return ((a >> 56) | + (((a >> 48) & 0xfful) << 8) | + (((a >> 40) & 0xfful) << 16) | + (((a >> 32) & 0xfful) << 24) | + (((a >> 24) & 0xfful) << 32) | + (((a >> 16) & 0xfful) << 40) | + (((a >> 8) & 0xfful) << 48) | (((a >> 0) & 0xfful) << 56)); +} + +/****************************************************************************/ + +void +octo_calc_hash(__u8 auth, unsigned char *key, uint64_t *inner, uint64_t *outer) +{ + uint8_t hash_key[64]; + uint64_t *key1; + register uint64_t xor1 = 0x3636363636363636ULL; + register uint64_t xor2 = 0x5c5c5c5c5c5c5c5cULL; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + memset(hash_key, 0, sizeof(hash_key)); + memcpy(hash_key, (uint8_t *) key, (auth ? 20 : 16)); + key1 = (uint64_t *) hash_key; + flags = octeon_crypto_enable(&state); + if (auth) { + CVMX_MT_HSH_IV(0x67452301EFCDAB89ULL, 0); + CVMX_MT_HSH_IV(0x98BADCFE10325476ULL, 1); + CVMX_MT_HSH_IV(0xC3D2E1F000000000ULL, 2); + } else { + CVMX_MT_HSH_IV(0x0123456789ABCDEFULL, 0); + CVMX_MT_HSH_IV(0xFEDCBA9876543210ULL, 1); + } + + CVMX_MT_HSH_DAT((*key1 ^ xor1), 0); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor1), 1); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor1), 2); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor1), 3); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor1), 4); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor1), 5); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor1), 6); + key1++; + if (auth) + CVMX_MT_HSH_STARTSHA((*key1 ^ xor1)); + else + CVMX_MT_HSH_STARTMD5((*key1 ^ xor1)); + + CVMX_MF_HSH_IV(inner[0], 0); + CVMX_MF_HSH_IV(inner[1], 1); + if (auth) { + inner[2] = 0; + CVMX_MF_HSH_IV(((uint64_t *) inner)[2], 2); + } + + memset(hash_key, 0, sizeof(hash_key)); + memcpy(hash_key, (uint8_t *) key, (auth ? 20 : 16)); + key1 = (uint64_t *) hash_key; + if (auth) { + CVMX_MT_HSH_IV(0x67452301EFCDAB89ULL, 0); + CVMX_MT_HSH_IV(0x98BADCFE10325476ULL, 1); + CVMX_MT_HSH_IV(0xC3D2E1F000000000ULL, 2); + } else { + CVMX_MT_HSH_IV(0x0123456789ABCDEFULL, 0); + CVMX_MT_HSH_IV(0xFEDCBA9876543210ULL, 1); + } + + CVMX_MT_HSH_DAT((*key1 ^ xor2), 0); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor2), 1); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor2), 2); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor2), 3); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor2), 4); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor2), 5); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor2), 6); + key1++; + if (auth) + CVMX_MT_HSH_STARTSHA((*key1 ^ xor2)); + else + CVMX_MT_HSH_STARTMD5((*key1 ^ xor2)); + + CVMX_MF_HSH_IV(outer[0], 0); + CVMX_MF_HSH_IV(outer[1], 1); + if (auth) { + outer[2] = 0; + CVMX_MF_HSH_IV(outer[2], 2); + } + octeon_crypto_disable(&state, flags); + return; +} + +/****************************************************************************/ +/* DES functions */ + +int +octo_des_cbc_encrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + uint64_t *data; + int data_i, data_l; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x7) || (crypt_off + crypt_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load 3DES Key */ + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + if (od->octo_encklen == 24) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + } else if (od->octo_encklen == 8) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 2); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + + CVMX_MT_3DES_IV(* (uint64_t *) ivp); + + while (crypt_off > 0) { + SG_CONSUME(sg, data, data_i, data_l); + crypt_off -= 8; + } + + while (crypt_len > 0) { + CVMX_MT_3DES_ENC_CBC(*data); + CVMX_MF_3DES_RESULT(*data); + SG_CONSUME(sg, data, data_i, data_l); + crypt_len -= 8; + } + + octeon_crypto_disable(&state, flags); + return 0; +} + + +int +octo_des_cbc_decrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + uint64_t *data; + int data_i, data_l; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x7) || (crypt_off + crypt_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load 3DES Key */ + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + if (od->octo_encklen == 24) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + } else if (od->octo_encklen == 8) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 2); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + + CVMX_MT_3DES_IV(* (uint64_t *) ivp); + + while (crypt_off > 0) { + SG_CONSUME(sg, data, data_i, data_l); + crypt_off -= 8; + } + + while (crypt_len > 0) { + CVMX_MT_3DES_DEC_CBC(*data); + CVMX_MF_3DES_RESULT(*data); + SG_CONSUME(sg, data, data_i, data_l); + crypt_len -= 8; + } + + octeon_crypto_disable(&state, flags); + return 0; +} + +/****************************************************************************/ +/* AES functions */ + +int +octo_aes_cbc_encrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + uint64_t *data, *pdata; + int data_i, data_l; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x7) || (crypt_off + crypt_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load AES Key */ + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + + if (od->octo_encklen == 16) { + CVMX_MT_AES_KEY(0x0, 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 24) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 32) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[3], 3); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + CVMX_MT_AES_KEYLENGTH(od->octo_encklen / 8 - 1); + + CVMX_MT_AES_IV(((uint64_t *) ivp)[0], 0); + CVMX_MT_AES_IV(((uint64_t *) ivp)[1], 1); + + while (crypt_off > 0) { + SG_CONSUME(sg, data, data_i, data_l); + crypt_off -= 8; + } + + while (crypt_len > 0) { + pdata = data; + CVMX_MT_AES_ENC_CBC0(*data); + SG_CONSUME(sg, data, data_i, data_l); + CVMX_MT_AES_ENC_CBC1(*data); + CVMX_MF_AES_RESULT(*pdata, 0); + CVMX_MF_AES_RESULT(*data, 1); + SG_CONSUME(sg, data, data_i, data_l); + crypt_len -= 16; + } + + octeon_crypto_disable(&state, flags); + return 0; +} + + +int +octo_aes_cbc_decrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + uint64_t *data, *pdata; + int data_i, data_l; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x7) || (crypt_off + crypt_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load AES Key */ + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + + if (od->octo_encklen == 16) { + CVMX_MT_AES_KEY(0x0, 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 24) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 32) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[3], 3); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + CVMX_MT_AES_KEYLENGTH(od->octo_encklen / 8 - 1); + + CVMX_MT_AES_IV(((uint64_t *) ivp)[0], 0); + CVMX_MT_AES_IV(((uint64_t *) ivp)[1], 1); + + while (crypt_off > 0) { + SG_CONSUME(sg, data, data_i, data_l); + crypt_off -= 8; + } + + while (crypt_len > 0) { + pdata = data; + CVMX_MT_AES_DEC_CBC0(*data); + SG_CONSUME(sg, data, data_i, data_l); + CVMX_MT_AES_DEC_CBC1(*data); + CVMX_MF_AES_RESULT(*pdata, 0); + CVMX_MF_AES_RESULT(*data, 1); + SG_CONSUME(sg, data, data_i, data_l); + crypt_len -= 16; + } + + octeon_crypto_disable(&state, flags); + return 0; +} + +/****************************************************************************/ +/* MD5 */ + +int +octo_null_md5_encrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + register int next = 0; + uint64_t *data; + uint64_t tmp1, tmp2; + int data_i, data_l, alen = auth_len; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || + (auth_off & 0x7) || (auth_off + auth_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data, data_i, data_l); + + flags = octeon_crypto_enable(&state); + + /* Load MD5 IV */ + CVMX_MT_HSH_IV(od->octo_hminner[0], 0); + CVMX_MT_HSH_IV(od->octo_hminner[1], 1); + + while (auth_off > 0) { + SG_CONSUME(sg, data, data_i, data_l); + auth_off -= 8; + } + + while (auth_len > 0) { + CVM_LOAD_MD5_UNIT(*data, next); + auth_len -= 8; + SG_CONSUME(sg, data, data_i, data_l); + } + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_MD5_UNIT(tmp, next); + } else { + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); +#endif + + /* Finish Inner hash */ + while (next != 7) { + CVM_LOAD_MD5_UNIT(((uint64_t) 0x0ULL), next); + } + CVMX_ES64(tmp1, ((alen + 64) << 3)); + CVM_LOAD_MD5_UNIT(tmp1, next); + + /* Get the inner hash of HMAC */ + CVMX_MF_HSH_IV(tmp1, 0); + CVMX_MF_HSH_IV(tmp2, 1); + + /* Initialize hash unit */ + CVMX_MT_HSH_IV(od->octo_hmouter[0], 0); + CVMX_MT_HSH_IV(od->octo_hmouter[1], 1); + + CVMX_MT_HSH_DAT(tmp1, 0); + CVMX_MT_HSH_DAT(tmp2, 1); + CVMX_MT_HSH_DAT(0x8000000000000000ULL, 2); + CVMX_MT_HSH_DATZ(3); + CVMX_MT_HSH_DATZ(4); + CVMX_MT_HSH_DATZ(5); + CVMX_MT_HSH_DATZ(6); + CVMX_ES64(tmp1, ((64 + 16) << 3)); + CVMX_MT_HSH_STARTMD5(tmp1); + + /* save the HMAC */ + SG_INIT(sg, data, data_i, data_l); + while (icv_off > 0) { + SG_CONSUME(sg, data, data_i, data_l); + icv_off -= 8; + } + CVMX_MF_HSH_IV(*data, 0); + SG_CONSUME(sg, data, data_i, data_l); + CVMX_MF_HSH_IV(tmp1, 1); + *(uint32_t *)data = (uint32_t) (tmp1 >> 32); + + octeon_crypto_disable(&state, flags); + return 0; +} + +/****************************************************************************/ +/* SHA1 */ + +int +octo_null_sha1_encrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + register int next = 0; + uint64_t *data; + uint64_t tmp1, tmp2, tmp3; + int data_i, data_l, alen = auth_len; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || + (auth_off & 0x7) || (auth_off + auth_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data, data_i, data_l); + + flags = octeon_crypto_enable(&state); + + /* Load SHA1 IV */ + CVMX_MT_HSH_IV(od->octo_hminner[0], 0); + CVMX_MT_HSH_IV(od->octo_hminner[1], 1); + CVMX_MT_HSH_IV(od->octo_hminner[2], 2); + + while (auth_off > 0) { + SG_CONSUME(sg, data, data_i, data_l); + auth_off -= 8; + } + + while (auth_len > 0) { + CVM_LOAD_SHA_UNIT(*data, next); + auth_len -= 8; + SG_CONSUME(sg, data, data_i, data_l); + } + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_MD5_UNIT(tmp, next); + } else { + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next); +#endif + + /* Finish Inner hash */ + while (next != 7) { + CVM_LOAD_SHA_UNIT(((uint64_t) 0x0ULL), next); + } + CVM_LOAD_SHA_UNIT((uint64_t) ((alen + 64) << 3), next); + + /* Get the inner hash of HMAC */ + CVMX_MF_HSH_IV(tmp1, 0); + CVMX_MF_HSH_IV(tmp2, 1); + tmp3 = 0; + CVMX_MF_HSH_IV(tmp3, 2); + + /* Initialize hash unit */ + CVMX_MT_HSH_IV(od->octo_hmouter[0], 0); + CVMX_MT_HSH_IV(od->octo_hmouter[1], 1); + CVMX_MT_HSH_IV(od->octo_hmouter[2], 2); + + CVMX_MT_HSH_DAT(tmp1, 0); + CVMX_MT_HSH_DAT(tmp2, 1); + tmp3 |= 0x0000000080000000; + CVMX_MT_HSH_DAT(tmp3, 2); + CVMX_MT_HSH_DATZ(3); + CVMX_MT_HSH_DATZ(4); + CVMX_MT_HSH_DATZ(5); + CVMX_MT_HSH_DATZ(6); + CVMX_MT_HSH_STARTSHA((uint64_t) ((64 + 20) << 3)); + + /* save the HMAC */ + SG_INIT(sg, data, data_i, data_l); + while (icv_off > 0) { + SG_CONSUME(sg, data, data_i, data_l); + icv_off -= 8; + } + CVMX_MF_HSH_IV(*data, 0); + SG_CONSUME(sg, data, data_i, data_l); + CVMX_MF_HSH_IV(tmp1, 1); + *(uint32_t *)data = (uint32_t) (tmp1 >> 32); + + octeon_crypto_disable(&state, flags); + return 0; +} + +/****************************************************************************/ +/* DES MD5 */ + +int +octo_des_cbc_md5_encrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + register int next = 0; + union { + uint32_t data32[2]; + uint64_t data64[1]; + } mydata; + uint64_t *data = &mydata.data64[0]; + uint32_t *data32; + uint64_t tmp1, tmp2; + int data_i, data_l, alen = auth_len; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) || + (crypt_len & 0x7) || + (auth_len & 0x7) || + (auth_off & 0x3) || (auth_off + auth_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data32, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load 3DES Key */ + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + if (od->octo_encklen == 24) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + } else if (od->octo_encklen == 8) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 2); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + + CVMX_MT_3DES_IV(* (uint64_t *) ivp); + + /* Load MD5 IV */ + CVMX_MT_HSH_IV(od->octo_hminner[0], 0); + CVMX_MT_HSH_IV(od->octo_hminner[1], 1); + + while (crypt_off > 0 && auth_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + crypt_off -= 4; + auth_off -= 4; + } + + while (crypt_len > 0 || auth_len > 0) { + uint32_t *first = data32; + mydata.data32[0] = *first; + SG_CONSUME(sg, data32, data_i, data_l); + mydata.data32[1] = *data32; + if (crypt_off <= 0) { + if (crypt_len > 0) { + CVMX_MT_3DES_ENC_CBC(*data); + CVMX_MF_3DES_RESULT(*data); + crypt_len -= 8; + } + } else + crypt_off -= 8; + if (auth_off <= 0) { + if (auth_len > 0) { + CVM_LOAD_MD5_UNIT(*data, next); + auth_len -= 8; + } + } else + auth_off -= 8; + *first = mydata.data32[0]; + *data32 = mydata.data32[1]; + SG_CONSUME(sg, data32, data_i, data_l); + } + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_MD5_UNIT(tmp, next); + } else { + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); +#endif + + /* Finish Inner hash */ + while (next != 7) { + CVM_LOAD_MD5_UNIT(((uint64_t) 0x0ULL), next); + } + CVMX_ES64(tmp1, ((alen + 64) << 3)); + CVM_LOAD_MD5_UNIT(tmp1, next); + + /* Get the inner hash of HMAC */ + CVMX_MF_HSH_IV(tmp1, 0); + CVMX_MF_HSH_IV(tmp2, 1); + + /* Initialize hash unit */ + CVMX_MT_HSH_IV(od->octo_hmouter[0], 0); + CVMX_MT_HSH_IV(od->octo_hmouter[1], 1); + + CVMX_MT_HSH_DAT(tmp1, 0); + CVMX_MT_HSH_DAT(tmp2, 1); + CVMX_MT_HSH_DAT(0x8000000000000000ULL, 2); + CVMX_MT_HSH_DATZ(3); + CVMX_MT_HSH_DATZ(4); + CVMX_MT_HSH_DATZ(5); + CVMX_MT_HSH_DATZ(6); + CVMX_ES64(tmp1, ((64 + 16) << 3)); + CVMX_MT_HSH_STARTMD5(tmp1); + + /* save the HMAC */ + SG_INIT(sg, data32, data_i, data_l); + while (icv_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + icv_off -= 4; + } + CVMX_MF_HSH_IV(tmp1, 0); + *data32 = (uint32_t) (tmp1 >> 32); + SG_CONSUME(sg, data32, data_i, data_l); + *data32 = (uint32_t) tmp1; + SG_CONSUME(sg, data32, data_i, data_l); + CVMX_MF_HSH_IV(tmp1, 1); + *data32 = (uint32_t) (tmp1 >> 32); + + octeon_crypto_disable(&state, flags); + return 0; +} + +int +octo_des_cbc_md5_decrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + register int next = 0; + union { + uint32_t data32[2]; + uint64_t data64[1]; + } mydata; + uint64_t *data = &mydata.data64[0]; + uint32_t *data32; + uint64_t tmp1, tmp2; + int data_i, data_l, alen = auth_len; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) || + (crypt_len & 0x7) || + (auth_len & 0x7) || + (auth_off & 0x3) || (auth_off + auth_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data32, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load 3DES Key */ + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + if (od->octo_encklen == 24) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + } else if (od->octo_encklen == 8) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 2); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + + CVMX_MT_3DES_IV(* (uint64_t *) ivp); + + /* Load MD5 IV */ + CVMX_MT_HSH_IV(od->octo_hminner[0], 0); + CVMX_MT_HSH_IV(od->octo_hminner[1], 1); + + while (crypt_off > 0 && auth_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + crypt_off -= 4; + auth_off -= 4; + } + + while (crypt_len > 0 || auth_len > 0) { + uint32_t *first = data32; + mydata.data32[0] = *first; + SG_CONSUME(sg, data32, data_i, data_l); + mydata.data32[1] = *data32; + if (auth_off <= 0) { + if (auth_len > 0) { + CVM_LOAD_MD5_UNIT(*data, next); + auth_len -= 8; + } + } else + auth_off -= 8; + if (crypt_off <= 0) { + if (crypt_len > 0) { + CVMX_MT_3DES_DEC_CBC(*data); + CVMX_MF_3DES_RESULT(*data); + crypt_len -= 8; + } + } else + crypt_off -= 8; + *first = mydata.data32[0]; + *data32 = mydata.data32[1]; + SG_CONSUME(sg, data32, data_i, data_l); + } + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_MD5_UNIT(tmp, next); + } else { + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); +#endif + + /* Finish Inner hash */ + while (next != 7) { + CVM_LOAD_MD5_UNIT(((uint64_t) 0x0ULL), next); + } + CVMX_ES64(tmp1, ((alen + 64) << 3)); + CVM_LOAD_MD5_UNIT(tmp1, next); + + /* Get the inner hash of HMAC */ + CVMX_MF_HSH_IV(tmp1, 0); + CVMX_MF_HSH_IV(tmp2, 1); + + /* Initialize hash unit */ + CVMX_MT_HSH_IV(od->octo_hmouter[0], 0); + CVMX_MT_HSH_IV(od->octo_hmouter[1], 1); + + CVMX_MT_HSH_DAT(tmp1, 0); + CVMX_MT_HSH_DAT(tmp2, 1); + CVMX_MT_HSH_DAT(0x8000000000000000ULL, 2); + CVMX_MT_HSH_DATZ(3); + CVMX_MT_HSH_DATZ(4); + CVMX_MT_HSH_DATZ(5); + CVMX_MT_HSH_DATZ(6); + CVMX_ES64(tmp1, ((64 + 16) << 3)); + CVMX_MT_HSH_STARTMD5(tmp1); + + /* save the HMAC */ + SG_INIT(sg, data32, data_i, data_l); + while (icv_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + icv_off -= 4; + } + CVMX_MF_HSH_IV(tmp1, 0); + *data32 = (uint32_t) (tmp1 >> 32); + SG_CONSUME(sg, data32, data_i, data_l); + *data32 = (uint32_t) tmp1; + SG_CONSUME(sg, data32, data_i, data_l); + CVMX_MF_HSH_IV(tmp1, 1); + *data32 = (uint32_t) (tmp1 >> 32); + + octeon_crypto_disable(&state, flags); + return 0; +} + +/****************************************************************************/ +/* DES SHA */ + +int +octo_des_cbc_sha1_encrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + register int next = 0; + union { + uint32_t data32[2]; + uint64_t data64[1]; + } mydata; + uint64_t *data = &mydata.data64[0]; + uint32_t *data32; + uint64_t tmp1, tmp2, tmp3; + int data_i, data_l, alen = auth_len; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) || + (crypt_len & 0x7) || + (auth_len & 0x7) || + (auth_off & 0x3) || (auth_off + auth_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data32, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load 3DES Key */ + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + if (od->octo_encklen == 24) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + } else if (od->octo_encklen == 8) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 2); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + + CVMX_MT_3DES_IV(* (uint64_t *) ivp); + + /* Load SHA1 IV */ + CVMX_MT_HSH_IV(od->octo_hminner[0], 0); + CVMX_MT_HSH_IV(od->octo_hminner[1], 1); + CVMX_MT_HSH_IV(od->octo_hminner[2], 2); + + while (crypt_off > 0 && auth_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + crypt_off -= 4; + auth_off -= 4; + } + + while (crypt_len > 0 || auth_len > 0) { + uint32_t *first = data32; + mydata.data32[0] = *first; + SG_CONSUME(sg, data32, data_i, data_l); + mydata.data32[1] = *data32; + if (crypt_off <= 0) { + if (crypt_len > 0) { + CVMX_MT_3DES_ENC_CBC(*data); + CVMX_MF_3DES_RESULT(*data); + crypt_len -= 8; + } + } else + crypt_off -= 8; + if (auth_off <= 0) { + if (auth_len > 0) { + CVM_LOAD_SHA_UNIT(*data, next); + auth_len -= 8; + } + } else + auth_off -= 8; + *first = mydata.data32[0]; + *data32 = mydata.data32[1]; + SG_CONSUME(sg, data32, data_i, data_l); + } + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_SHA_UNIT(tmp, next); + } else { + CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next); +#endif + + /* Finish Inner hash */ + while (next != 7) { + CVM_LOAD_SHA_UNIT(((uint64_t) 0x0ULL), next); + } + CVM_LOAD_SHA_UNIT((uint64_t) ((alen + 64) << 3), next); + + /* Get the inner hash of HMAC */ + CVMX_MF_HSH_IV(tmp1, 0); + CVMX_MF_HSH_IV(tmp2, 1); + tmp3 = 0; + CVMX_MF_HSH_IV(tmp3, 2); + + /* Initialize hash unit */ + CVMX_MT_HSH_IV(od->octo_hmouter[0], 0); + CVMX_MT_HSH_IV(od->octo_hmouter[1], 1); + CVMX_MT_HSH_IV(od->octo_hmouter[2], 2); + + CVMX_MT_HSH_DAT(tmp1, 0); + CVMX_MT_HSH_DAT(tmp2, 1); + tmp3 |= 0x0000000080000000; + CVMX_MT_HSH_DAT(tmp3, 2); + CVMX_MT_HSH_DATZ(3); + CVMX_MT_HSH_DATZ(4); + CVMX_MT_HSH_DATZ(5); + CVMX_MT_HSH_DATZ(6); + CVMX_MT_HSH_STARTSHA((uint64_t) ((64 + 20) << 3)); + + /* save the HMAC */ + SG_INIT(sg, data32, data_i, data_l); + while (icv_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + icv_off -= 4; + } + CVMX_MF_HSH_IV(tmp1, 0); + *data32 = (uint32_t) (tmp1 >> 32); + SG_CONSUME(sg, data32, data_i, data_l); + *data32 = (uint32_t) tmp1; + SG_CONSUME(sg, data32, data_i, data_l); + CVMX_MF_HSH_IV(tmp1, 1); + *data32 = (uint32_t) (tmp1 >> 32); + + octeon_crypto_disable(&state, flags); + return 0; +} + +int +octo_des_cbc_sha1_decrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + register int next = 0; + union { + uint32_t data32[2]; + uint64_t data64[1]; + } mydata; + uint64_t *data = &mydata.data64[0]; + uint32_t *data32; + uint64_t tmp1, tmp2, tmp3; + int data_i, data_l, alen = auth_len; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) || + (crypt_len & 0x7) || + (auth_len & 0x7) || + (auth_off & 0x3) || (auth_off + auth_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data32, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load 3DES Key */ + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + if (od->octo_encklen == 24) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + } else if (od->octo_encklen == 8) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 2); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + + CVMX_MT_3DES_IV(* (uint64_t *) ivp); + + /* Load SHA1 IV */ + CVMX_MT_HSH_IV(od->octo_hminner[0], 0); + CVMX_MT_HSH_IV(od->octo_hminner[1], 1); + CVMX_MT_HSH_IV(od->octo_hminner[2], 2); + + while (crypt_off > 0 && auth_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + crypt_off -= 4; + auth_off -= 4; + } + + while (crypt_len > 0 || auth_len > 0) { + uint32_t *first = data32; + mydata.data32[0] = *first; + SG_CONSUME(sg, data32, data_i, data_l); + mydata.data32[1] = *data32; + if (auth_off <= 0) { + if (auth_len > 0) { + CVM_LOAD_SHA_UNIT(*data, next); + auth_len -= 8; + } + } else + auth_off -= 8; + if (crypt_off <= 0) { + if (crypt_len > 0) { + CVMX_MT_3DES_DEC_CBC(*data); + CVMX_MF_3DES_RESULT(*data); + crypt_len -= 8; + } + } else + crypt_off -= 8; + *first = mydata.data32[0]; + *data32 = mydata.data32[1]; + SG_CONSUME(sg, data32, data_i, data_l); + } + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_SHA_UNIT(tmp, next); + } else { + CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next); +#endif + + /* Finish Inner hash */ + while (next != 7) { + CVM_LOAD_SHA_UNIT(((uint64_t) 0x0ULL), next); + } + CVM_LOAD_SHA_UNIT((uint64_t) ((alen + 64) << 3), next); + + /* Get the inner hash of HMAC */ + CVMX_MF_HSH_IV(tmp1, 0); + CVMX_MF_HSH_IV(tmp2, 1); + tmp3 = 0; + CVMX_MF_HSH_IV(tmp3, 2); + + /* Initialize hash unit */ + CVMX_MT_HSH_IV(od->octo_hmouter[0], 0); + CVMX_MT_HSH_IV(od->octo_hmouter[1], 1); + CVMX_MT_HSH_IV(od->octo_hmouter[2], 2); + + CVMX_MT_HSH_DAT(tmp1, 0); + CVMX_MT_HSH_DAT(tmp2, 1); + tmp3 |= 0x0000000080000000; + CVMX_MT_HSH_DAT(tmp3, 2); + CVMX_MT_HSH_DATZ(3); + CVMX_MT_HSH_DATZ(4); + CVMX_MT_HSH_DATZ(5); + CVMX_MT_HSH_DATZ(6); + CVMX_MT_HSH_STARTSHA((uint64_t) ((64 + 20) << 3)); + /* save the HMAC */ + SG_INIT(sg, data32, data_i, data_l); + while (icv_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + icv_off -= 4; + } + CVMX_MF_HSH_IV(tmp1, 0); + *data32 = (uint32_t) (tmp1 >> 32); + SG_CONSUME(sg, data32, data_i, data_l); + *data32 = (uint32_t) tmp1; + SG_CONSUME(sg, data32, data_i, data_l); + CVMX_MF_HSH_IV(tmp1, 1); + *data32 = (uint32_t) (tmp1 >> 32); + + octeon_crypto_disable(&state, flags); + return 0; +} + +/****************************************************************************/ +/* AES MD5 */ + +int +octo_aes_cbc_md5_encrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + register int next = 0; + union { + uint32_t data32[2]; + uint64_t data64[1]; + } mydata[2]; + uint64_t *pdata = &mydata[0].data64[0]; + uint64_t *data = &mydata[1].data64[0]; + uint32_t *data32; + uint64_t tmp1, tmp2; + int data_i, data_l, alen = auth_len; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) || + (crypt_len & 0x7) || + (auth_len & 0x7) || + (auth_off & 0x3) || (auth_off + auth_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data32, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load AES Key */ + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + + if (od->octo_encklen == 16) { + CVMX_MT_AES_KEY(0x0, 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 24) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 32) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[3], 3); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + CVMX_MT_AES_KEYLENGTH(od->octo_encklen / 8 - 1); + + CVMX_MT_AES_IV(((uint64_t *) ivp)[0], 0); + CVMX_MT_AES_IV(((uint64_t *) ivp)[1], 1); + + /* Load MD5 IV */ + CVMX_MT_HSH_IV(od->octo_hminner[0], 0); + CVMX_MT_HSH_IV(od->octo_hminner[1], 1); + + while (crypt_off > 0 && auth_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + crypt_off -= 4; + auth_off -= 4; + } + + /* align auth and crypt */ + while (crypt_off > 0 && auth_len > 0) { + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + CVM_LOAD_MD5_UNIT(*pdata, next); + crypt_off -= 8; + auth_len -= 8; + } + + while (crypt_len > 0) { + uint32_t *pdata32[3]; + + pdata32[0] = data32; + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + + pdata32[1] = data32; + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + + pdata32[2] = data32; + mydata[1].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + + mydata[1].data32[1] = *data32; + + CVMX_MT_AES_ENC_CBC0(*pdata); + CVMX_MT_AES_ENC_CBC1(*data); + CVMX_MF_AES_RESULT(*pdata, 0); + CVMX_MF_AES_RESULT(*data, 1); + crypt_len -= 16; + + if (auth_len > 0) { + CVM_LOAD_MD5_UNIT(*pdata, next); + auth_len -= 8; + } + if (auth_len > 0) { + CVM_LOAD_MD5_UNIT(*data, next); + auth_len -= 8; + } + + *pdata32[0] = mydata[0].data32[0]; + *pdata32[1] = mydata[0].data32[1]; + *pdata32[2] = mydata[1].data32[0]; + *data32 = mydata[1].data32[1]; + + SG_CONSUME(sg, data32, data_i, data_l); + } + + /* finish any left over hashing */ + while (auth_len > 0) { + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + CVM_LOAD_MD5_UNIT(*pdata, next); + auth_len -= 8; + } + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_MD5_UNIT(tmp, next); + } else { + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); +#endif + + /* Finish Inner hash */ + while (next != 7) { + CVM_LOAD_MD5_UNIT(((uint64_t) 0x0ULL), next); + } + CVMX_ES64(tmp1, ((alen + 64) << 3)); + CVM_LOAD_MD5_UNIT(tmp1, next); + + /* Get the inner hash of HMAC */ + CVMX_MF_HSH_IV(tmp1, 0); + CVMX_MF_HSH_IV(tmp2, 1); + + /* Initialize hash unit */ + CVMX_MT_HSH_IV(od->octo_hmouter[0], 0); + CVMX_MT_HSH_IV(od->octo_hmouter[1], 1); + + CVMX_MT_HSH_DAT(tmp1, 0); + CVMX_MT_HSH_DAT(tmp2, 1); + CVMX_MT_HSH_DAT(0x8000000000000000ULL, 2); + CVMX_MT_HSH_DATZ(3); + CVMX_MT_HSH_DATZ(4); + CVMX_MT_HSH_DATZ(5); + CVMX_MT_HSH_DATZ(6); + CVMX_ES64(tmp1, ((64 + 16) << 3)); + CVMX_MT_HSH_STARTMD5(tmp1); + + /* save the HMAC */ + SG_INIT(sg, data32, data_i, data_l); + while (icv_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + icv_off -= 4; + } + CVMX_MF_HSH_IV(tmp1, 0); + *data32 = (uint32_t) (tmp1 >> 32); + SG_CONSUME(sg, data32, data_i, data_l); + *data32 = (uint32_t) tmp1; + SG_CONSUME(sg, data32, data_i, data_l); + CVMX_MF_HSH_IV(tmp1, 1); + *data32 = (uint32_t) (tmp1 >> 32); + + octeon_crypto_disable(&state, flags); + return 0; +} + +int +octo_aes_cbc_md5_decrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + register int next = 0; + union { + uint32_t data32[2]; + uint64_t data64[1]; + } mydata[2]; + uint64_t *pdata = &mydata[0].data64[0]; + uint64_t *data = &mydata[1].data64[0]; + uint32_t *data32; + uint64_t tmp1, tmp2; + int data_i, data_l, alen = auth_len; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) || + (crypt_len & 0x7) || + (auth_len & 0x7) || + (auth_off & 0x3) || (auth_off + auth_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data32, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load AES Key */ + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + + if (od->octo_encklen == 16) { + CVMX_MT_AES_KEY(0x0, 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 24) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 32) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[3], 3); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + CVMX_MT_AES_KEYLENGTH(od->octo_encklen / 8 - 1); + + CVMX_MT_AES_IV(((uint64_t *) ivp)[0], 0); + CVMX_MT_AES_IV(((uint64_t *) ivp)[1], 1); + + /* Load MD5 IV */ + CVMX_MT_HSH_IV(od->octo_hminner[0], 0); + CVMX_MT_HSH_IV(od->octo_hminner[1], 1); + + while (crypt_off > 0 && auth_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + crypt_off -= 4; + auth_off -= 4; + } + + /* align auth and crypt */ + while (crypt_off > 0 && auth_len > 0) { + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + CVM_LOAD_MD5_UNIT(*pdata, next); + crypt_off -= 8; + auth_len -= 8; + } + + while (crypt_len > 0) { + uint32_t *pdata32[3]; + + pdata32[0] = data32; + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + pdata32[1] = data32; + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + pdata32[2] = data32; + mydata[1].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + mydata[1].data32[1] = *data32; + + if (auth_len > 0) { + CVM_LOAD_MD5_UNIT(*pdata, next); + auth_len -= 8; + } + + if (auth_len > 0) { + CVM_LOAD_MD5_UNIT(*data, next); + auth_len -= 8; + } + + CVMX_MT_AES_DEC_CBC0(*pdata); + CVMX_MT_AES_DEC_CBC1(*data); + CVMX_MF_AES_RESULT(*pdata, 0); + CVMX_MF_AES_RESULT(*data, 1); + crypt_len -= 16; + + *pdata32[0] = mydata[0].data32[0]; + *pdata32[1] = mydata[0].data32[1]; + *pdata32[2] = mydata[1].data32[0]; + *data32 = mydata[1].data32[1]; + + SG_CONSUME(sg, data32, data_i, data_l); + } + + /* finish left over hash if any */ + while (auth_len > 0) { + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + CVM_LOAD_MD5_UNIT(*pdata, next); + auth_len -= 8; + } + + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_MD5_UNIT(tmp, next); + } else { + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); +#endif + + /* Finish Inner hash */ + while (next != 7) { + CVM_LOAD_MD5_UNIT(((uint64_t) 0x0ULL), next); + } + CVMX_ES64(tmp1, ((alen + 64) << 3)); + CVM_LOAD_MD5_UNIT(tmp1, next); + + /* Get the inner hash of HMAC */ + CVMX_MF_HSH_IV(tmp1, 0); + CVMX_MF_HSH_IV(tmp2, 1); + + /* Initialize hash unit */ + CVMX_MT_HSH_IV(od->octo_hmouter[0], 0); + CVMX_MT_HSH_IV(od->octo_hmouter[1], 1); + + CVMX_MT_HSH_DAT(tmp1, 0); + CVMX_MT_HSH_DAT(tmp2, 1); + CVMX_MT_HSH_DAT(0x8000000000000000ULL, 2); + CVMX_MT_HSH_DATZ(3); + CVMX_MT_HSH_DATZ(4); + CVMX_MT_HSH_DATZ(5); + CVMX_MT_HSH_DATZ(6); + CVMX_ES64(tmp1, ((64 + 16) << 3)); + CVMX_MT_HSH_STARTMD5(tmp1); + + /* save the HMAC */ + SG_INIT(sg, data32, data_i, data_l); + while (icv_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + icv_off -= 4; + } + CVMX_MF_HSH_IV(tmp1, 0); + *data32 = (uint32_t) (tmp1 >> 32); + SG_CONSUME(sg, data32, data_i, data_l); + *data32 = (uint32_t) tmp1; + SG_CONSUME(sg, data32, data_i, data_l); + CVMX_MF_HSH_IV(tmp1, 1); + *data32 = (uint32_t) (tmp1 >> 32); + + octeon_crypto_disable(&state, flags); + return 0; +} + +/****************************************************************************/ +/* AES SHA1 */ + +int +octo_aes_cbc_sha1_encrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + register int next = 0; + union { + uint32_t data32[2]; + uint64_t data64[1]; + } mydata[2]; + uint64_t *pdata = &mydata[0].data64[0]; + uint64_t *data = &mydata[1].data64[0]; + uint32_t *data32; + uint64_t tmp1, tmp2, tmp3; + int data_i, data_l, alen = auth_len; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s(a_off=%d a_len=%d c_off=%d c_len=%d icv_off=%d)\n", + __FUNCTION__, auth_off, auth_len, crypt_off, crypt_len, icv_off); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) || + (crypt_len & 0x7) || + (auth_len & 0x7) || + (auth_off & 0x3) || (auth_off + auth_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data32, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load AES Key */ + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + + if (od->octo_encklen == 16) { + CVMX_MT_AES_KEY(0x0, 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 24) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 32) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[3], 3); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + CVMX_MT_AES_KEYLENGTH(od->octo_encklen / 8 - 1); + + CVMX_MT_AES_IV(((uint64_t *) ivp)[0], 0); + CVMX_MT_AES_IV(((uint64_t *) ivp)[1], 1); + + /* Load SHA IV */ + CVMX_MT_HSH_IV(od->octo_hminner[0], 0); + CVMX_MT_HSH_IV(od->octo_hminner[1], 1); + CVMX_MT_HSH_IV(od->octo_hminner[2], 2); + + while (crypt_off > 0 && auth_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + crypt_off -= 4; + auth_off -= 4; + } + + /* align auth and crypt */ + while (crypt_off > 0 && auth_len > 0) { + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + CVM_LOAD_SHA_UNIT(*pdata, next); + crypt_off -= 8; + auth_len -= 8; + } + + while (crypt_len > 0) { + uint32_t *pdata32[3]; + + pdata32[0] = data32; + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + pdata32[1] = data32; + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + pdata32[2] = data32; + mydata[1].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + mydata[1].data32[1] = *data32; + + CVMX_MT_AES_ENC_CBC0(*pdata); + CVMX_MT_AES_ENC_CBC1(*data); + CVMX_MF_AES_RESULT(*pdata, 0); + CVMX_MF_AES_RESULT(*data, 1); + crypt_len -= 16; + + if (auth_len > 0) { + CVM_LOAD_SHA_UNIT(*pdata, next); + auth_len -= 8; + } + if (auth_len > 0) { + CVM_LOAD_SHA_UNIT(*data, next); + auth_len -= 8; + } + + *pdata32[0] = mydata[0].data32[0]; + *pdata32[1] = mydata[0].data32[1]; + *pdata32[2] = mydata[1].data32[0]; + *data32 = mydata[1].data32[1]; + + SG_CONSUME(sg, data32, data_i, data_l); + } + + /* finish and hashing */ + while (auth_len > 0) { + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + CVM_LOAD_SHA_UNIT(*pdata, next); + auth_len -= 8; + } + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_SHA_UNIT(tmp, next); + } else { + CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next); +#endif + + /* Finish Inner hash */ + while (next != 7) { + CVM_LOAD_SHA_UNIT(((uint64_t) 0x0ULL), next); + } + CVM_LOAD_SHA_UNIT((uint64_t) ((alen + 64) << 3), next); + + /* Get the inner hash of HMAC */ + CVMX_MF_HSH_IV(tmp1, 0); + CVMX_MF_HSH_IV(tmp2, 1); + tmp3 = 0; + CVMX_MF_HSH_IV(tmp3, 2); + + /* Initialize hash unit */ + CVMX_MT_HSH_IV(od->octo_hmouter[0], 0); + CVMX_MT_HSH_IV(od->octo_hmouter[1], 1); + CVMX_MT_HSH_IV(od->octo_hmouter[2], 2); + + CVMX_MT_HSH_DAT(tmp1, 0); + CVMX_MT_HSH_DAT(tmp2, 1); + tmp3 |= 0x0000000080000000; + CVMX_MT_HSH_DAT(tmp3, 2); + CVMX_MT_HSH_DATZ(3); + CVMX_MT_HSH_DATZ(4); + CVMX_MT_HSH_DATZ(5); + CVMX_MT_HSH_DATZ(6); + CVMX_MT_HSH_STARTSHA((uint64_t) ((64 + 20) << 3)); + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_MD5_UNIT(tmp, next); + } else { + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); +#endif + + /* save the HMAC */ + SG_INIT(sg, data32, data_i, data_l); + while (icv_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + icv_off -= 4; + } + CVMX_MF_HSH_IV(tmp1, 0); + *data32 = (uint32_t) (tmp1 >> 32); + SG_CONSUME(sg, data32, data_i, data_l); + *data32 = (uint32_t) tmp1; + SG_CONSUME(sg, data32, data_i, data_l); + CVMX_MF_HSH_IV(tmp1, 1); + *data32 = (uint32_t) (tmp1 >> 32); + + octeon_crypto_disable(&state, flags); + return 0; +} + +int +octo_aes_cbc_sha1_decrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + register int next = 0; + union { + uint32_t data32[2]; + uint64_t data64[1]; + } mydata[2]; + uint64_t *pdata = &mydata[0].data64[0]; + uint64_t *data = &mydata[1].data64[0]; + uint32_t *data32; + uint64_t tmp1, tmp2, tmp3; + int data_i, data_l, alen = auth_len; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s(a_off=%d a_len=%d c_off=%d c_len=%d icv_off=%d)\n", + __FUNCTION__, auth_off, auth_len, crypt_off, crypt_len, icv_off); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) || + (crypt_len & 0x7) || + (auth_len & 0x7) || + (auth_off & 0x3) || (auth_off + auth_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data32, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load AES Key */ + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + + if (od->octo_encklen == 16) { + CVMX_MT_AES_KEY(0x0, 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 24) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 32) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[3], 3); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + CVMX_MT_AES_KEYLENGTH(od->octo_encklen / 8 - 1); + + CVMX_MT_AES_IV(((uint64_t *) ivp)[0], 0); + CVMX_MT_AES_IV(((uint64_t *) ivp)[1], 1); + + /* Load SHA1 IV */ + CVMX_MT_HSH_IV(od->octo_hminner[0], 0); + CVMX_MT_HSH_IV(od->octo_hminner[1], 1); + CVMX_MT_HSH_IV(od->octo_hminner[2], 2); + + while (crypt_off > 0 && auth_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + crypt_off -= 4; + auth_off -= 4; + } + + /* align auth and crypt */ + while (crypt_off > 0 && auth_len > 0) { + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + CVM_LOAD_SHA_UNIT(*pdata, next); + crypt_off -= 8; + auth_len -= 8; + } + + while (crypt_len > 0) { + uint32_t *pdata32[3]; + + pdata32[0] = data32; + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + pdata32[1] = data32; + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + pdata32[2] = data32; + mydata[1].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + mydata[1].data32[1] = *data32; + + if (auth_len > 0) { + CVM_LOAD_SHA_UNIT(*pdata, next); + auth_len -= 8; + } + if (auth_len > 0) { + CVM_LOAD_SHA_UNIT(*data, next); + auth_len -= 8; + } + + CVMX_MT_AES_DEC_CBC0(*pdata); + CVMX_MT_AES_DEC_CBC1(*data); + CVMX_MF_AES_RESULT(*pdata, 0); + CVMX_MF_AES_RESULT(*data, 1); + crypt_len -= 16; + + *pdata32[0] = mydata[0].data32[0]; + *pdata32[1] = mydata[0].data32[1]; + *pdata32[2] = mydata[1].data32[0]; + *data32 = mydata[1].data32[1]; + + SG_CONSUME(sg, data32, data_i, data_l); + } + + /* finish and leftover hashing */ + while (auth_len > 0) { + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + CVM_LOAD_SHA_UNIT(*pdata, next); + auth_len -= 8; + } + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_SHA_UNIT(tmp, next); + } else { + CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next); +#endif + + /* Finish Inner hash */ + while (next != 7) { + CVM_LOAD_SHA_UNIT(((uint64_t) 0x0ULL), next); + } + CVM_LOAD_SHA_UNIT((uint64_t) ((alen + 64) << 3), next); + + /* Get the inner hash of HMAC */ + CVMX_MF_HSH_IV(tmp1, 0); + CVMX_MF_HSH_IV(tmp2, 1); + tmp3 = 0; + CVMX_MF_HSH_IV(tmp3, 2); + + /* Initialize hash unit */ + CVMX_MT_HSH_IV(od->octo_hmouter[0], 0); + CVMX_MT_HSH_IV(od->octo_hmouter[1], 1); + CVMX_MT_HSH_IV(od->octo_hmouter[2], 2); + + CVMX_MT_HSH_DAT(tmp1, 0); + CVMX_MT_HSH_DAT(tmp2, 1); + tmp3 |= 0x0000000080000000; + CVMX_MT_HSH_DAT(tmp3, 2); + CVMX_MT_HSH_DATZ(3); + CVMX_MT_HSH_DATZ(4); + CVMX_MT_HSH_DATZ(5); + CVMX_MT_HSH_DATZ(6); + CVMX_MT_HSH_STARTSHA((uint64_t) ((64 + 20) << 3)); + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_MD5_UNIT(tmp, next); + } else { + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); +#endif + + /* save the HMAC */ + SG_INIT(sg, data32, data_i, data_l); + while (icv_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + icv_off -= 4; + } + CVMX_MF_HSH_IV(tmp1, 0); + *data32 = (uint32_t) (tmp1 >> 32); + SG_CONSUME(sg, data32, data_i, data_l); + *data32 = (uint32_t) tmp1; + SG_CONSUME(sg, data32, data_i, data_l); + CVMX_MF_HSH_IV(tmp1, 1); + *data32 = (uint32_t) (tmp1 >> 32); + + octeon_crypto_disable(&state, flags); + return 0; +} + +/****************************************************************************/ diff --git a/target/linux/generic/files/crypto/ocf/cryptocteon/cryptocteon.c b/target/linux/generic/files/crypto/ocf/cryptocteon/cryptocteon.c new file mode 100644 index 000000000..0168ad321 --- /dev/null +++ b/target/linux/generic/files/crypto/ocf/cryptocteon/cryptocteon.c @@ -0,0 +1,576 @@ +/* + * Octeon Crypto for OCF + * + * Written by David McCullough <david_mccullough@mcafee.com> + * Copyright (C) 2009-2010 David McCullough + * + * LICENSE TERMS + * + * The free distribution and use of this software in both source and binary + * form is allowed (with or without changes) provided that: + * + * 1. distributions of this source code include the above copyright + * notice, this list of conditions and the following disclaimer; + * + * 2. distributions in binary form include the above copyright + * notice, this list of conditions and the following disclaimer + * in the documentation and/or other associated materials; + * + * 3. the copyright holder's name is not used to endorse products + * built using this software without specific written permission. + * + * DISCLAIMER + * + * This software is provided 'as is' with no explicit or implied warranties + * in respect of its properties, including, but not limited to, correctness + * and/or fitness for purpose. + * --------------------------------------------------------------------------- + */ + +#include <linux/version.h> +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38) && !defined(AUTOCONF_INCLUDED) +#include <linux/config.h> +#endif +#include <linux/module.h> +#include <linux/init.h> +#include <linux/list.h> +#include <linux/slab.h> +#include <linux/sched.h> +#include <linux/wait.h> +#include <linux/crypto.h> +#include <linux/mm.h> +#include <linux/skbuff.h> +#include <linux/random.h> +#include <linux/scatterlist.h> + +#include <cryptodev.h> +#include <uio.h> + +struct { + softc_device_decl sc_dev; +} octo_softc; + +#define offset_in_page(p) ((unsigned long)(p) & ~PAGE_MASK) + +struct octo_sess { + int octo_encalg; + #define MAX_CIPHER_KEYLEN 64 + char octo_enckey[MAX_CIPHER_KEYLEN]; + int octo_encklen; + + int octo_macalg; + #define MAX_HASH_KEYLEN 64 + char octo_mackey[MAX_HASH_KEYLEN]; + int octo_macklen; + int octo_mackey_set; + + int octo_mlen; + int octo_ivsize; + + int (*octo_encrypt)(struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp); + int (*octo_decrypt)(struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp); + + uint64_t octo_hminner[3]; + uint64_t octo_hmouter[3]; +}; + +int32_t octo_id = -1; +module_param(octo_id, int, 0444); +MODULE_PARM_DESC(octo_id, "Read-Only OCF ID for cryptocteon driver"); + +static struct octo_sess **octo_sessions = NULL; +static u_int32_t octo_sesnum = 0; + +static int octo_process(device_t, struct cryptop *, int); +static int octo_newsession(device_t, u_int32_t *, struct cryptoini *); +static int octo_freesession(device_t, u_int64_t); + +static device_method_t octo_methods = { + /* crypto device methods */ + DEVMETHOD(cryptodev_newsession, octo_newsession), + DEVMETHOD(cryptodev_freesession,octo_freesession), + DEVMETHOD(cryptodev_process, octo_process), +}; + +#define debug octo_debug +int octo_debug = 0; +module_param(octo_debug, int, 0644); +MODULE_PARM_DESC(octo_debug, "Enable debug"); + + +#include "cavium_crypto.c" + + +/* + * Generate a new octo session. We artifically limit it to a single + * hash/cipher or hash-cipher combo just to make it easier, most callers + * do not expect more than this anyway. + */ +static int +octo_newsession(device_t dev, u_int32_t *sid, struct cryptoini *cri) +{ + struct cryptoini *c, *encini = NULL, *macini = NULL; + struct octo_sess **ocd; + int i; + + dprintk("%s()\n", __FUNCTION__); + if (sid == NULL || cri == NULL) { + dprintk("%s,%d - EINVAL\n", __FILE__, __LINE__); + return EINVAL; + } + + /* + * To keep it simple, we only handle hash, cipher or hash/cipher in a + * session, you cannot currently do multiple ciphers/hashes in one + * session even though it would be possibel to code this driver to + * handle it. + */ + for (i = 0, c = cri; c && i < 2; i++) { + if (c->cri_alg == CRYPTO_MD5_HMAC || + c->cri_alg == CRYPTO_SHA1_HMAC || + c->cri_alg == CRYPTO_NULL_HMAC) { + if (macini) { + break; + } + macini = c; + } + if (c->cri_alg == CRYPTO_DES_CBC || + c->cri_alg == CRYPTO_3DES_CBC || + c->cri_alg == CRYPTO_AES_CBC || + c->cri_alg == CRYPTO_NULL_CBC) { + if (encini) { + break; + } + encini = c; + } + c = c->cri_next; + } + if (!macini && !encini) { + dprintk("%s,%d - EINVAL bad cipher/hash or combination\n", + __FILE__, __LINE__); + return EINVAL; + } + if (c) { + dprintk("%s,%d - EINVAL cannot handle chained cipher/hash combos\n", + __FILE__, __LINE__); + return EINVAL; + } + + /* + * So we have something we can do, lets setup the session + */ + + if (octo_sessions) { + for (i = 1; i < octo_sesnum; i++) + if (octo_sessions[i] == NULL) + break; + } else + i = 1; /* NB: to silence compiler warning */ + + if (octo_sessions == NULL || i == octo_sesnum) { + if (octo_sessions == NULL) { + i = 1; /* We leave octo_sessions[0] empty */ + octo_sesnum = CRYPTO_SW_SESSIONS; + } else + octo_sesnum *= 2; + + ocd = kmalloc(octo_sesnum * sizeof(struct octo_sess *), SLAB_ATOMIC); + if (ocd == NULL) { + /* Reset session number */ + if (octo_sesnum == CRYPTO_SW_SESSIONS) + octo_sesnum = 0; + else + octo_sesnum /= 2; + dprintk("%s,%d: ENOBUFS\n", __FILE__, __LINE__); + return ENOBUFS; + } + memset(ocd, 0, octo_sesnum * sizeof(struct octo_sess *)); + + /* Copy existing sessions */ + if (octo_sessions) { + memcpy(ocd, octo_sessions, + (octo_sesnum / 2) * sizeof(struct octo_sess *)); + kfree(octo_sessions); + } + + octo_sessions = ocd; + } + + ocd = &octo_sessions[i]; + *sid = i; + + + *ocd = (struct octo_sess *) kmalloc(sizeof(struct octo_sess), SLAB_ATOMIC); + if (*ocd == NULL) { + octo_freesession(NULL, i); + dprintk("%s,%d: ENOBUFS\n", __FILE__, __LINE__); + return ENOBUFS; + } + memset(*ocd, 0, sizeof(struct octo_sess)); + + if (encini && encini->cri_key) { + (*ocd)->octo_encklen = (encini->cri_klen + 7) / 8; + memcpy((*ocd)->octo_enckey, encini->cri_key, (*ocd)->octo_encklen); + } + + if (macini && macini->cri_key) { + (*ocd)->octo_macklen = (macini->cri_klen + 7) / 8; + memcpy((*ocd)->octo_mackey, macini->cri_key, (*ocd)->octo_macklen); + } + + (*ocd)->octo_mlen = 0; + if (encini && encini->cri_mlen) + (*ocd)->octo_mlen = encini->cri_mlen; + else if (macini && macini->cri_mlen) + (*ocd)->octo_mlen = macini->cri_mlen; + else + (*ocd)->octo_mlen = 12; + + /* + * point c at the enc if it exists, otherwise the mac + */ + c = encini ? encini : macini; + + switch (c->cri_alg) { + case CRYPTO_DES_CBC: + case CRYPTO_3DES_CBC: + (*ocd)->octo_ivsize = 8; + switch (macini ? macini->cri_alg : -1) { + case CRYPTO_MD5_HMAC: + (*ocd)->octo_encrypt = octo_des_cbc_md5_encrypt; + (*ocd)->octo_decrypt = octo_des_cbc_md5_decrypt; + octo_calc_hash(0, macini->cri_key, (*ocd)->octo_hminner, + (*ocd)->octo_hmouter); + break; + case CRYPTO_SHA1_HMAC: + (*ocd)->octo_encrypt = octo_des_cbc_sha1_encrypt; + (*ocd)->octo_decrypt = octo_des_cbc_sha1_decrypt; + octo_calc_hash(1, macini->cri_key, (*ocd)->octo_hminner, + (*ocd)->octo_hmouter); + break; + case -1: + (*ocd)->octo_encrypt = octo_des_cbc_encrypt; + (*ocd)->octo_decrypt = octo_des_cbc_decrypt; + break; + default: + octo_freesession(NULL, i); + dprintk("%s,%d: EINVALn", __FILE__, __LINE__); + return EINVAL; + } + break; + case CRYPTO_AES_CBC: + (*ocd)->octo_ivsize = 16; + switch (macini ? macini->cri_alg : -1) { + case CRYPTO_MD5_HMAC: + (*ocd)->octo_encrypt = octo_aes_cbc_md5_encrypt; + (*ocd)->octo_decrypt = octo_aes_cbc_md5_decrypt; + octo_calc_hash(0, macini->cri_key, (*ocd)->octo_hminner, + (*ocd)->octo_hmouter); + break; + case CRYPTO_SHA1_HMAC: + (*ocd)->octo_encrypt = octo_aes_cbc_sha1_encrypt; + (*ocd)->octo_decrypt = octo_aes_cbc_sha1_decrypt; + octo_calc_hash(1, macini->cri_key, (*ocd)->octo_hminner, + (*ocd)->octo_hmouter); + break; + case -1: + (*ocd)->octo_encrypt = octo_aes_cbc_encrypt; + (*ocd)->octo_decrypt = octo_aes_cbc_decrypt; + break; + default: + octo_freesession(NULL, i); + dprintk("%s,%d: EINVALn", __FILE__, __LINE__); + return EINVAL; + } + break; + case CRYPTO_MD5_HMAC: + (*ocd)->octo_encrypt = octo_null_md5_encrypt; + (*ocd)->octo_decrypt = octo_null_md5_encrypt; /* encrypt == decrypt */ + octo_calc_hash(0, macini->cri_key, (*ocd)->octo_hminner, + (*ocd)->octo_hmouter); + break; + case CRYPTO_SHA1_HMAC: + (*ocd)->octo_encrypt = octo_null_sha1_encrypt; + (*ocd)->octo_decrypt = octo_null_sha1_encrypt; /* encrypt == decrypt */ + octo_calc_hash(1, macini->cri_key, (*ocd)->octo_hminner, + (*ocd)->octo_hmouter); + break; + default: + octo_freesession(NULL, i); + dprintk("%s,%d: EINVALn", __FILE__, __LINE__); + return EINVAL; + } + + (*ocd)->octo_encalg = encini ? encini->cri_alg : -1; + (*ocd)->octo_macalg = macini ? macini->cri_alg : -1; + + return 0; +} + +/* + * Free a session. + */ +static int +octo_freesession(device_t dev, u_int64_t tid) +{ + u_int32_t sid = CRYPTO_SESID2LID(tid); + + dprintk("%s()\n", __FUNCTION__); + if (sid > octo_sesnum || octo_sessions == NULL || + octo_sessions[sid] == NULL) { + dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__); + return(EINVAL); + } + + /* Silently accept and return */ + if (sid == 0) + return(0); + + if (octo_sessions[sid]) + kfree(octo_sessions[sid]); + octo_sessions[sid] = NULL; + return 0; +} + +/* + * Process a request. + */ +static int +octo_process(device_t dev, struct cryptop *crp, int hint) +{ + struct cryptodesc *crd; + struct octo_sess *od; + u_int32_t lid; +#define SCATTERLIST_MAX 16 + struct scatterlist sg[SCATTERLIST_MAX]; + int sg_num, sg_len; + struct sk_buff *skb = NULL; + struct uio *uiop = NULL; + struct cryptodesc *enccrd = NULL, *maccrd = NULL; + unsigned char *ivp = NULL; + unsigned char iv_data[HASH_MAX_LEN]; + int auth_off = 0, auth_len = 0, crypt_off = 0, crypt_len = 0, icv_off = 0; + + dprintk("%s()\n", __FUNCTION__); + /* Sanity check */ + if (crp == NULL) { + dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__); + return EINVAL; + } + + crp->crp_etype = 0; + + if (crp->crp_desc == NULL || crp->crp_buf == NULL) { + dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__); + crp->crp_etype = EINVAL; + goto done; + } + + lid = crp->crp_sid & 0xffffffff; + if (lid >= octo_sesnum || lid == 0 || octo_sessions == NULL || + octo_sessions[lid] == NULL) { + crp->crp_etype = ENOENT; + dprintk("%s,%d: ENOENT\n", __FILE__, __LINE__); + goto done; + } + od = octo_sessions[lid]; + + /* + * do some error checking outside of the loop for SKB and IOV processing + * this leaves us with valid skb or uiop pointers for later + */ + if (crp->crp_flags & CRYPTO_F_SKBUF) { + skb = (struct sk_buff *) crp->crp_buf; + if (skb_shinfo(skb)->nr_frags >= SCATTERLIST_MAX) { + printk("%s,%d: %d nr_frags > SCATTERLIST_MAX", __FILE__, __LINE__, + skb_shinfo(skb)->nr_frags); + goto done; + } + } else if (crp->crp_flags & CRYPTO_F_IOV) { + uiop = (struct uio *) crp->crp_buf; + if (uiop->uio_iovcnt > SCATTERLIST_MAX) { + printk("%s,%d: %d uio_iovcnt > SCATTERLIST_MAX", __FILE__, __LINE__, + uiop->uio_iovcnt); + goto done; + } + } + + /* point our enccrd and maccrd appropriately */ + crd = crp->crp_desc; + if (crd->crd_alg == od->octo_encalg) enccrd = crd; + if (crd->crd_alg == od->octo_macalg) maccrd = crd; + crd = crd->crd_next; + if (crd) { + if (crd->crd_alg == od->octo_encalg) enccrd = crd; + if (crd->crd_alg == od->octo_macalg) maccrd = crd; + crd = crd->crd_next; + } + if (crd) { + crp->crp_etype = EINVAL; + dprintk("%s,%d: ENOENT - descriptors do not match session\n", + __FILE__, __LINE__); + goto done; + } + + if (enccrd) { + if (enccrd->crd_flags & CRD_F_ENCRYPT) { + if (enccrd->crd_flags & CRD_F_IV_EXPLICIT) + ivp = enccrd->crd_iv; + else + read_random((ivp = iv_data), od->octo_ivsize); + if ((enccrd->crd_flags & CRD_F_IV_PRESENT) == 0) + crypto_copyback(crp->crp_flags, crp->crp_buf, + enccrd->crd_inject, od->octo_ivsize, ivp); + } else { + if (enccrd->crd_flags & CRD_F_IV_EXPLICIT) { + ivp = enccrd->crd_iv; + } else { + ivp = iv_data; + crypto_copydata(crp->crp_flags, crp->crp_buf, + enccrd->crd_inject, od->octo_ivsize, (caddr_t) ivp); + } + } + + if (maccrd) { + auth_off = maccrd->crd_skip; + auth_len = maccrd->crd_len; + icv_off = maccrd->crd_inject; + } + + crypt_off = enccrd->crd_skip; + crypt_len = enccrd->crd_len; + } else { /* if (maccrd) */ + auth_off = maccrd->crd_skip; + auth_len = maccrd->crd_len; + icv_off = maccrd->crd_inject; + } + + + /* + * setup the SG list to cover the buffer + */ + memset(sg, 0, sizeof(sg)); + if (crp->crp_flags & CRYPTO_F_SKBUF) { + int i, len; + + sg_num = 0; + sg_len = 0; + + len = skb_headlen(skb); + sg_set_page(&sg[sg_num], virt_to_page(skb->data), len, + offset_in_page(skb->data)); + sg_len += len; + sg_num++; + + for (i = 0; i < skb_shinfo(skb)->nr_frags && sg_num < SCATTERLIST_MAX; + i++) { + len = skb_shinfo(skb)->frags[i].size; + sg_set_page(&sg[sg_num], skb_frag_page(&skb_shinfo(skb)->frags[i]), + len, skb_shinfo(skb)->frags[i].page_offset); + sg_len += len; + sg_num++; + } + } else if (crp->crp_flags & CRYPTO_F_IOV) { + int len; + + sg_len = 0; + for (sg_num = 0; sg_len < crp->crp_ilen && + sg_num < uiop->uio_iovcnt && + sg_num < SCATTERLIST_MAX; sg_num++) { + len = uiop->uio_iov[sg_num].iov_len; + sg_set_page(&sg[sg_num], + virt_to_page(uiop->uio_iov[sg_num].iov_base), len, + offset_in_page(uiop->uio_iov[sg_num].iov_base)); + sg_len += len; + } + } else { + sg_len = crp->crp_ilen; + sg_set_page(&sg[0], virt_to_page(crp->crp_buf), sg_len, + offset_in_page(crp->crp_buf)); + sg_num = 1; + } + if (sg_num > 0) + sg_mark_end(&sg[sg_num-1]); + + /* + * setup a new explicit key + */ + if (enccrd) { + if (enccrd->crd_flags & CRD_F_KEY_EXPLICIT) { + od->octo_encklen = (enccrd->crd_klen + 7) / 8; + memcpy(od->octo_enckey, enccrd->crd_key, od->octo_encklen); + } + } + if (maccrd) { + if (maccrd->crd_flags & CRD_F_KEY_EXPLICIT) { + od->octo_macklen = (maccrd->crd_klen + 7) / 8; + memcpy(od->octo_mackey, maccrd->crd_key, od->octo_macklen); + od->octo_mackey_set = 0; + } + if (!od->octo_mackey_set) { + octo_calc_hash(maccrd->crd_alg == CRYPTO_MD5_HMAC ? 0 : 1, + maccrd->crd_key, od->octo_hminner, od->octo_hmouter); + od->octo_mackey_set = 1; + } + } + + + if (!enccrd || (enccrd->crd_flags & CRD_F_ENCRYPT)) + (*od->octo_encrypt)(od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + else + (*od->octo_decrypt)(od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + +done: + crypto_done(crp); + return 0; +} + +static int +cryptocteon_init(void) +{ + dprintk("%s(%p)\n", __FUNCTION__, cryptocteon_init); + + softc_device_init(&octo_softc, "cryptocteon", 0, octo_methods); + + octo_id = crypto_get_driverid(softc_get_device(&octo_softc), + CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SYNC); + if (octo_id < 0) { + printk("Cryptocteon device cannot initialize!"); + return -ENODEV; + } + + crypto_register(octo_id, CRYPTO_MD5_HMAC, 0,0); + crypto_register(octo_id, CRYPTO_SHA1_HMAC, 0,0); + //crypto_register(octo_id, CRYPTO_MD5, 0,0); + //crypto_register(octo_id, CRYPTO_SHA1, 0,0); + crypto_register(octo_id, CRYPTO_DES_CBC, 0,0); + crypto_register(octo_id, CRYPTO_3DES_CBC, 0,0); + crypto_register(octo_id, CRYPTO_AES_CBC, 0,0); + + return(0); +} + +static void +cryptocteon_exit(void) +{ + dprintk("%s()\n", __FUNCTION__); + crypto_unregister_all(octo_id); + octo_id = -1; +} + +module_init(cryptocteon_init); +module_exit(cryptocteon_exit); + +MODULE_LICENSE("BSD"); +MODULE_AUTHOR("David McCullough <david_mccullough@mcafee.com>"); +MODULE_DESCRIPTION("Cryptocteon (OCF module for Cavium OCTEON crypto)"); |