]> git.saurik.com Git - apple/xnu.git/blobdiff - bsd/netinet6/ah_input.c
xnu-1699.22.81.tar.gz
[apple/xnu.git] / bsd / netinet6 / ah_input.c
index b79bf0895cdbf4ad708329c5b50e5c18ccd54df9..a448295b7bb8afa0cf185014589d1b3aa9aa1dbf 100644 (file)
@@ -1,3 +1,31 @@
+/*
+ * Copyright (c) 2008 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ */
+
 /*     $FreeBSD: src/sys/netinet6/ah_input.c,v 1.1.2.6 2002/04/28 05:40:26 suz Exp $   */
 /*     $KAME: ah_input.c,v 1.67 2002/01/07 11:39:56 kjc Exp $  */
 
 
 #include <net/kpi_protocol.h>
 #include <netinet/kpi_ipfilter_var.h>
+#include <mach/sdt.h>
 
 #include <net/net_osdep.h>
 
@@ -209,7 +238,7 @@ ah4_input(struct mbuf *m, int off)
        if (siz1 < siz) {
                ipseclog((LOG_NOTICE, "sum length too short in IPv4 AH input "
                    "(%lu, should be at least %lu): %s\n",
-                   (u_long)siz1, (u_long)siz,
+                   (u_int32_t)siz1, (u_int32_t)siz,
                    ipsec4_logpacketstr(ip, spi)));
                IPSEC_STAT_INCREMENT(ipsecstat.in_inval);
                goto fail;
@@ -217,7 +246,7 @@ ah4_input(struct mbuf *m, int off)
        if ((ah->ah_len << 2) - sizoff != siz1) {
                ipseclog((LOG_NOTICE, "sum length mismatch in IPv4 AH input "
                    "(%d should be %lu): %s\n",
-                   (ah->ah_len << 2) - sizoff, (u_long)siz1,
+                   (ah->ah_len << 2) - sizoff, (u_int32_t)siz1,
                    ipsec4_logpacketstr(ip, spi)));
                IPSEC_STAT_INCREMENT(ipsecstat.in_inval);
                goto fail;
@@ -388,6 +417,9 @@ ah4_input(struct mbuf *m, int off)
                stripsiz = sizeof(struct newah) + siz1;
        }
        if (ipsec4_tunnel_validate(m, off + stripsiz, nxt, sav, &ifamily)) {
+               ifaddr_t ifa;
+               struct sockaddr_storage addr;
+
                /*
                 * strip off all the headers that precedes AH.
                 *      IP xx AH IP' payload -> IP' payload
@@ -453,7 +485,25 @@ ah4_input(struct mbuf *m, int off)
                        IPSEC_STAT_INCREMENT(ipsecstat.in_nomem);
                        goto fail;
                }
-               proto_input(PF_INET, m);
+
+               if (ip_doscopedroute) {
+                       struct sockaddr_in *ipaddr;
+
+                       bzero(&addr, sizeof(addr));
+                       ipaddr = (__typeof__(ipaddr))&addr;
+                       ipaddr->sin_family = AF_INET;
+                       ipaddr->sin_len = sizeof(*ipaddr);
+                       ipaddr->sin_addr = ip->ip_dst;
+
+                       // update the receiving interface address based on the inner address
+                       ifa = ifa_ifwithaddr((struct sockaddr *)&addr);
+                       if (ifa) {
+                               m->m_pkthdr.rcvif = ifa->ifa_ifp;
+                               IFA_REMREF(ifa);
+                       }
+               }
+               if (proto_input(PF_INET, m) != 0)
+                       goto fail;
                nxt = IPPROTO_DONE;
        } else {
                /*
@@ -521,6 +571,10 @@ ah4_input(struct mbuf *m, int off)
                        goto fail;
                }
 
+               DTRACE_IP6(receive, struct mbuf *, m, struct inpcb *, NULL,
+                        struct ip *, ip, struct ifnet *, m->m_pkthdr.rcvif,
+                        struct ip *, ip, struct ip6_hdr *, NULL);
+
                if (nxt != IPPROTO_DONE) {
                        if ((ip_protox[nxt]->pr_flags & PR_LASTHDR) != 0 &&
                            ipsec4_in_reject(m, NULL)) {
@@ -555,10 +609,9 @@ fail:
 
 #if INET6
 int
-ah6_input(mp, offp)
-       struct mbuf **mp;
-       int *offp;
+ah6_input(struct mbuf **mp, int *offp, int proto)
 {
+#pragma unused(proto)
        struct mbuf *m = *mp;
        int off = *offp;
        struct ip6_hdr *ip6;
@@ -644,7 +697,7 @@ ah6_input(mp, offp)
        if (siz1 < siz) {
                ipseclog((LOG_NOTICE, "sum length too short in IPv6 AH input "
                    "(%lu, should be at least %lu): %s\n",
-                   (u_long)siz1, (u_long)siz,
+                   (u_int32_t)siz1, (u_int32_t)siz,
                    ipsec6_logpacketstr(ip6, spi)));
                IPSEC_STAT_INCREMENT(ipsec6stat.in_inval);
                goto fail;
@@ -652,7 +705,7 @@ ah6_input(mp, offp)
        if ((ah->ah_len << 2) - sizoff != siz1) {
                ipseclog((LOG_NOTICE, "sum length mismatch in IPv6 AH input "
                    "(%d should be %lu): %s\n",
-                   (ah->ah_len << 2) - sizoff, (u_long)siz1,
+                   (ah->ah_len << 2) - sizoff, (u_int32_t)siz1,
                    ipsec6_logpacketstr(ip6, spi)));
                IPSEC_STAT_INCREMENT(ipsec6stat.in_inval);
                goto fail;
@@ -797,6 +850,9 @@ ah6_input(mp, offp)
                stripsiz = sizeof(struct newah) + siz1;
        }
        if (ipsec6_tunnel_validate(m, off + stripsiz, nxt, sav)) {
+               ifaddr_t ifa;
+               struct sockaddr_storage addr;
+
                /*
                 * strip off all the headers that precedes AH.
                 *      IP6 xx AH IP6' payload -> IP6' payload
@@ -847,7 +903,26 @@ ah6_input(mp, offp)
                        IPSEC_STAT_INCREMENT(ipsec6stat.in_nomem);
                        goto fail;
                }
-               proto_input(PF_INET6, m);
+
+               if (ip6_doscopedroute) {
+                       struct sockaddr_in6 *ip6addr;
+
+                       bzero(&addr, sizeof(addr));
+                       ip6addr = (__typeof__(ip6addr))&addr;
+                       ip6addr->sin6_family = AF_INET6;
+                       ip6addr->sin6_len = sizeof(*ip6addr);
+                       ip6addr->sin6_addr = ip6->ip6_dst;
+
+                       // update the receiving interface address based on the inner address
+                       ifa = ifa_ifwithaddr((struct sockaddr *)&addr);
+                       if (ifa) {
+                               m->m_pkthdr.rcvif = ifa->ifa_ifp;
+                               IFA_REMREF(ifa);
+                       }
+               }
+
+               if (proto_input(PF_INET6, m) != 0)
+                       goto fail;
                nxt = IPPROTO_DONE;
        } else {
                /*