diff options
Diffstat (limited to 'package/openswan/linux-2.6.21.5-openswan-2.4.8.kernel-2.6-natt.patch')
| -rw-r--r-- | package/openswan/linux-2.6.21.5-openswan-2.4.8.kernel-2.6-natt.patch | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/package/openswan/linux-2.6.21.5-openswan-2.4.8.kernel-2.6-natt.patch b/package/openswan/linux-2.6.21.5-openswan-2.4.8.kernel-2.6-natt.patch new file mode 100644 index 000000000..2db521a2e --- /dev/null +++ b/package/openswan/linux-2.6.21.5-openswan-2.4.8.kernel-2.6-natt.patch @@ -0,0 +1,126 @@ +diff -rduNp linux-2.6.21.5.orig/include/net/xfrmudp.h linux-2.6.21.5/include/net/xfrmudp.h +--- linux-2.6.21.5.orig/include/net/xfrmudp.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.21.5/include/net/xfrmudp.h 2007-06-21 10:53:38.000000000 +0200 +@@ -0,0 +1,10 @@ ++/* ++ * pointer to function for type that xfrm4_input wants, to permit ++ * decoupling of XFRM from udp.c ++ */ ++#define HAVE_XFRM4_UDP_REGISTER ++ ++typedef int (*xfrm4_rcv_encap_t)(struct sk_buff *skb, __u16 encap_type); ++extern int udp4_register_esp_rcvencap(xfrm4_rcv_encap_t func ++ , xfrm4_rcv_encap_t *oldfunc); ++extern int udp4_unregister_esp_rcvencap(xfrm4_rcv_encap_t func); +diff -rduNp linux-2.6.21.5.orig/net/ipv4/Kconfig linux-2.6.21.5/net/ipv4/Kconfig +--- linux-2.6.21.5.orig/net/ipv4/Kconfig 2007-06-11 20:37:06.000000000 +0200 ++++ linux-2.6.21.5/net/ipv4/Kconfig 2007-06-21 10:53:38.000000000 +0200 +@@ -349,6 +349,12 @@ config SYN_COOKIES + be taken as absolute truth. + + SYN cookies may prevent correct error reporting on clients when the ++config IPSEC_NAT_TRAVERSAL ++ bool "IPSEC NAT-Traversal (KLIPS compatible)" ++ depends on INET ++ ---help--- ++ Includes support for RFC3947/RFC3948 NAT-Traversal of ESP over UDP. ++ + server is really overloaded. If this happens frequently better turn + them off. + +diff -rduNp linux-2.6.21.5.orig/net/ipv4/udp.c linux-2.6.21.5/net/ipv4/udp.c +--- linux-2.6.21.5.orig/net/ipv4/udp.c 2007-06-11 20:37:06.000000000 +0200 ++++ linux-2.6.21.5/net/ipv4/udp.c 2007-06-21 10:56:18.000000000 +0200 +@@ -108,6 +108,7 @@ + */ + + DEFINE_SNMP_STAT(struct udp_mib, udp_statistics) __read_mostly; ++#include <net/xfrmudp.h> + + struct hlist_head udp_hash[UDP_HTABLE_SIZE]; + DEFINE_RWLOCK(udp_hash_lock); +@@ -915,6 +916,44 @@ int udp_disconnect(struct sock *sk, int + return 0; + } + ++#if defined(CONFIG_XFRM) || defined(CONFIG_IPSEC_NAT_TRAVERSAL) ++ ++/* if XFRM isn't a module, then register it directly. */ ++#if !defined(CONFIG_XFRM_MODULE) ++static xfrm4_rcv_encap_t xfrm4_rcv_encap_func = xfrm4_rcv_encap; ++#else ++static xfrm4_rcv_encap_t xfrm4_rcv_encap_func = NULL; ++#endif ++ ++static xfrm4_rcv_encap_t xfrm4_rcv_encap_func; ++ ++int udp4_register_esp_rcvencap(xfrm4_rcv_encap_t func ++ , xfrm4_rcv_encap_t *oldfunc) ++{ ++ if(oldfunc != NULL) { ++ *oldfunc = xfrm4_rcv_encap_func; ++ } ++ ++#if 0 ++ if(xfrm4_rcv_encap_func != NULL) ++ return -1; ++#endif ++ ++ xfrm4_rcv_encap_func = func; ++ return 0; ++} ++ ++int udp4_unregister_esp_rcvencap(xfrm4_rcv_encap_t func) ++{ ++ if(xfrm4_rcv_encap_func != func) ++ return -1; ++ ++ xfrm4_rcv_encap_func = NULL; ++ return 0; ++} ++#endif /* CONFIG_XFRM || defined(CONFIG_IPSEC_NAT_TRAVERSAL)*/ ++ ++ + /* return: + * 1 if the the UDP system should process it + * 0 if we should drop this packet +@@ -922,9 +961,9 @@ int udp_disconnect(struct sock *sk, int + */ + static int udp_encap_rcv(struct sock * sk, struct sk_buff *skb) + { +-#ifndef CONFIG_XFRM ++#if !defined(CONFIG_XFRM) && !defined(CONFIG_IPSEC_NAT_TRAVERSAL) + return 1; +-#else ++#else /* either CONFIG_XFRM or CONFIG_IPSEC_NAT_TRAVERSAL */ + struct udp_sock *up = udp_sk(sk); + struct udphdr *uh; + struct iphdr *iph; +@@ -1052,9 +1091,14 @@ int udp_queue_rcv_skb(struct sock * sk, + } + if (ret < 0) { + /* process the ESP packet */ +- ret = xfrm4_rcv_encap(skb, up->encap_type); +- UDP_INC_STATS_BH(UDP_MIB_INDATAGRAMS, up->pcflag); +- return -ret; ++ if (xfrm4_rcv_encap_func != NULL) { ++ ret = (*xfrm4_rcv_encap_func)(skb, up->encap_type); ++ UDP_INC_STATS_BH(UDP_MIB_INDATAGRAMS, up->pcflag); ++ } else { ++ UDP_INC_STATS_BH(UDP_MIB_INERRORS, up->pcflag); ++ ret = 1; ++ } ++ return ret; + } + /* FALLTHROUGH -- it's a UDP Packet */ + } +@@ -1733,3 +1777,9 @@ EXPORT_SYMBOL(udp_poll); + EXPORT_SYMBOL(udp_proc_register); + EXPORT_SYMBOL(udp_proc_unregister); + #endif ++ ++#if defined(CONFIG_IPSEC_NAT_TRAVERSAL) ++EXPORT_SYMBOL(udp4_register_esp_rcvencap); ++EXPORT_SYMBOL(udp4_unregister_esp_rcvencap); ++#endif ++ |