+/*
+ * 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/if.h>
#include <net/route.h>
-#include <net/netisr.h>
#include <kern/cpu_number.h>
+#include <kern/locks.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#define KEYDEBUG(lev,arg)
#endif
+#include <net/kpi_protocol.h>
+#include <netinet/kpi_ipfilter_var.h>
+#include <mach/sdt.h>
#include <net/net_osdep.h>
struct secasvar *sav = NULL;
u_int16_t nxt;
size_t hlen;
- int s;
size_t stripsiz = 0;
-
+ sa_family_t ifamily;
#ifndef PULLDOWN_TEST
if (m->m_len < off + sizeof(struct newah)) {
if (!m) {
ipseclog((LOG_DEBUG, "IPv4 AH input: can't pullup;"
"dropping the packet for simplicity\n"));
- ipsecstat.in_inval++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_inval);
goto fail;
}
}
if (ah == NULL) {
ipseclog((LOG_DEBUG, "IPv4 AH input: can't pullup;"
"dropping the packet for simplicity\n"));
- ipsecstat.in_inval++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_inval);
goto fail;
}
#endif
ipseclog((LOG_WARNING,
"IPv4 AH input: no key association found for spi %u\n",
(u_int32_t)ntohl(spi)));
- ipsecstat.in_nosa++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_nosa);
goto fail;
}
KEYDEBUG(KEYDEBUG_IPSEC_STAMP,
ipseclog((LOG_DEBUG,
"IPv4 AH input: non-mature/dying SA found for spi %u\n",
(u_int32_t)ntohl(spi)));
- ipsecstat.in_badspi++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_badspi);
goto fail;
}
ipseclog((LOG_DEBUG, "IPv4 AH input: "
"unsupported authentication algorithm for spi %u\n",
(u_int32_t)ntohl(spi)));
- ipsecstat.in_badspi++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_badspi);
goto fail;
}
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)));
- ipsecstat.in_inval++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_inval);
goto fail;
}
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)));
- ipsecstat.in_inval++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_inval);
goto fail;
}
m = m_pullup(m, off + sizeof(struct ah) + sizoff + siz1);
if (!m) {
ipseclog((LOG_DEBUG, "IPv4 AH input: can't pullup\n"));
- ipsecstat.in_inval++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_inval);
goto fail;
}
sizeof(struct ah) + sizoff + siz1);
if (ah == NULL) {
ipseclog((LOG_DEBUG, "IPv4 AH input: can't pullup\n"));
- ipsecstat.in_inval++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_inval);
goto fail;
}
#endif
if (ipsec_chkreplay(ntohl(((struct newah *)ah)->ah_seq), sav))
; /*okey*/
else {
- ipsecstat.in_ahreplay++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_ahreplay);
ipseclog((LOG_WARNING,
"replay packet in IPv4 AH input: %s %s\n",
ipsec4_logpacketstr(ip, spi), ipsec_logsastr(sav)));
if (!cksum) {
ipseclog((LOG_DEBUG, "IPv4 AH input: "
"couldn't alloc temporary region for cksum\n"));
- ipsecstat.in_inval++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_inval);
goto fail;
}
ip->ip_off = htons(ip->ip_off);
if (ah4_calccksum(m, (caddr_t)cksum, siz1, algo, sav)) {
FREE(cksum, M_TEMP);
- ipsecstat.in_inval++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_inval);
goto fail;
}
- ipsecstat.in_ahhist[sav->alg_auth]++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_ahhist[sav->alg_auth]);
/*
* flip them back.
*/
"checksum mismatch in IPv4 AH input: %s %s\n",
ipsec4_logpacketstr(ip, spi), ipsec_logsastr(sav)));
FREE(cksum, M_TEMP);
- ipsecstat.in_ahauthfail++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_ahauthfail);
goto fail;
}
}
if (!m) {
ipseclog((LOG_DEBUG,
"IPv4 AH input: can't pullup\n"));
- ipsecstat.in_inval++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_inval);
goto fail;
}
}
ipseclog((LOG_DEBUG,
"IPv4 AH input: authentication succeess\n"));
#endif
- ipsecstat.in_ahauthsucc++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_ahauthsucc);
} else {
ipseclog((LOG_WARNING,
"authentication failed in IPv4 AH input: %s %s\n",
ipsec4_logpacketstr(ip, spi), ipsec_logsastr(sav)));
- ipsecstat.in_ahauthfail++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_ahauthfail);
goto fail;
}
*/
if ((sav->flags & SADB_X_EXT_OLD) == 0 && sav->replay) {
if (ipsec_updatereplay(ntohl(((struct newah *)ah)->ah_seq), sav)) {
- ipsecstat.in_ahreplay++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_ahreplay);
goto fail;
}
}
/* RFC 2402 */
stripsiz = sizeof(struct newah) + siz1;
}
- if (ipsec4_tunnel_validate(m, off + stripsiz, nxt, sav)) {
+ 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
* XXX relationship with gif?
*/
u_int8_t tos;
-
+
+ if (ifamily == AF_INET6) {
+ ipseclog((LOG_NOTICE, "ipsec tunnel protocol mismatch "
+ "in IPv4 AH input: %s\n", ipsec_logsastr(sav)));
+ goto fail;
+ }
tos = ip->ip_tos;
m_adj(m, off + stripsiz);
if (m->m_len < sizeof(*ip)) {
m = m_pullup(m, sizeof(*ip));
if (!m) {
- ipsecstat.in_inval++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_inval);
goto fail;
}
}
ipseclog((LOG_NOTICE, "ipsec tunnel address mismatch "
"in IPv4 AH input: %s %s\n",
ipsec4_logpacketstr(ip, spi), ipsec_logsastr(sav)));
- ipsecstat.in_inval++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_inval);
goto fail;
}
key_sa_recordxfer(sav, m);
if (ipsec_addhist(m, IPPROTO_AH, spi) != 0 ||
ipsec_addhist(m, IPPROTO_IPV4, 0) != 0) {
- ipsecstat.in_nomem++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_nomem);
goto fail;
}
- s = splimp();
- if (IF_QFULL(&ipintrq)) {
- ipsecstat.in_inval++;
- splx(s);
- goto fail;
+ 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_ENQUEUE(&ipintrq, m);
- m = NULL;
- schednetisr(NETISR_IP); /*can be skipped but to make sure*/
- splx(s);
+ if (proto_input(PF_INET, m) != 0)
+ goto fail;
nxt = IPPROTO_DONE;
} else {
/*
if (m->m_len < sizeof(*ip)) {
m = m_pullup(m, sizeof(*ip));
if (m == NULL) {
- ipsecstat.in_inval++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_inval);
goto fail;
}
}
key_sa_recordxfer(sav, m);
if (ipsec_addhist(m, IPPROTO_AH, spi) != 0) {
- ipsecstat.in_nomem++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_nomem);
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)) {
- ipsecstat.in_polvio++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_polvio);
goto fail;
}
- (*ip_protox[nxt]->pr_input)(m, off);
+ ip_proto_dispatch_in(m, off, nxt, 0);
} else
m_freem(m);
m = NULL;
if (sav) {
KEYDEBUG(KEYDEBUG_IPSEC_STAMP,
printf("DP ah4_input call free SA:%p\n", sav));
- key_freesav(sav);
+ key_freesav(sav, KEY_SADB_UNLOCKED);
}
- ipsecstat.in_success++;
+ IPSEC_STAT_INCREMENT(ipsecstat.in_success);
return;
fail:
if (sav) {
KEYDEBUG(KEYDEBUG_IPSEC_STAMP,
printf("DP ah4_input call free SA:%p\n", sav));
- key_freesav(sav);
+ key_freesav(sav, KEY_SADB_UNLOCKED);
}
if (m)
m_freem(m);
#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;
u_char *cksum;
struct secasvar *sav = NULL;
u_int16_t nxt;
- int s;
size_t stripsiz = 0;
+
#ifndef PULLDOWN_TEST
- IP6_EXTHDR_CHECK(m, off, sizeof(struct ah), IPPROTO_DONE);
+ IP6_EXTHDR_CHECK(m, off, sizeof(struct ah), {return IPPROTO_DONE;});
ah = (struct ah *)(mtod(m, caddr_t) + off);
#else
IP6_EXTHDR_GET(ah, struct ah *, m, off, sizeof(struct newah));
if (ntohs(ip6->ip6_plen) == 0) {
ipseclog((LOG_ERR, "IPv6 AH input: "
"AH with IPv6 jumbogram is not supported.\n"));
- ipsec6stat.in_inval++;
+ IPSEC_STAT_INCREMENT(ipsec6stat.in_inval);
goto fail;
}
ipseclog((LOG_WARNING,
"IPv6 AH input: no key association found for spi %u\n",
(u_int32_t)ntohl(spi)));
- ipsec6stat.in_nosa++;
+ IPSEC_STAT_INCREMENT(ipsec6stat.in_nosa);
goto fail;
}
KEYDEBUG(KEYDEBUG_IPSEC_STAMP,
ipseclog((LOG_DEBUG,
"IPv6 AH input: non-mature/dying SA found for spi %u; ",
(u_int32_t)ntohl(spi)));
- ipsec6stat.in_badspi++;
+ IPSEC_STAT_INCREMENT(ipsec6stat.in_badspi);
goto fail;
}
ipseclog((LOG_DEBUG, "IPv6 AH input: "
"unsupported authentication algorithm for spi %u\n",
(u_int32_t)ntohl(spi)));
- ipsec6stat.in_badspi++;
+ IPSEC_STAT_INCREMENT(ipsec6stat.in_badspi);
goto fail;
}
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)));
- ipsec6stat.in_inval++;
+ IPSEC_STAT_INCREMENT(ipsec6stat.in_inval);
goto fail;
}
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)));
- ipsec6stat.in_inval++;
+ IPSEC_STAT_INCREMENT(ipsec6stat.in_inval);
goto fail;
}
#ifndef PULLDOWN_TEST
- IP6_EXTHDR_CHECK(m, off, sizeof(struct ah) + sizoff + siz1, IPPROTO_DONE);
+ IP6_EXTHDR_CHECK(m, off, sizeof(struct ah) + sizoff + siz1,
+ {return IPPROTO_DONE;});
#else
IP6_EXTHDR_GET(ah, struct ah *, m, off,
sizeof(struct ah) + sizoff + siz1);
if (ah == NULL) {
ipseclog((LOG_NOTICE, "couldn't pullup gather IPv6 AH checksum part"));
- ipsec6stat.in_inval++;
+ IPSEC_STAT_INCREMENT(ipsec6stat.in_inval);
m = NULL;
goto fail;
}
if (ipsec_chkreplay(ntohl(((struct newah *)ah)->ah_seq), sav))
; /*okey*/
else {
- ipsec6stat.in_ahreplay++;
+ IPSEC_STAT_INCREMENT(ipsec6stat.in_ahreplay);
ipseclog((LOG_WARNING,
"replay packet in IPv6 AH input: %s %s\n",
ipsec6_logpacketstr(ip6, spi),
if (!cksum) {
ipseclog((LOG_DEBUG, "IPv6 AH input: "
"couldn't alloc temporary region for cksum\n"));
- ipsec6stat.in_inval++;
+ IPSEC_STAT_INCREMENT(ipsec6stat.in_inval);
goto fail;
}
if (ah6_calccksum(m, (caddr_t)cksum, siz1, algo, sav)) {
FREE(cksum, M_TEMP);
- ipsec6stat.in_inval++;
+ IPSEC_STAT_INCREMENT(ipsec6stat.in_inval);
goto fail;
}
- ipsec6stat.in_ahhist[sav->alg_auth]++;
+ IPSEC_STAT_INCREMENT(ipsec6stat.in_ahhist[sav->alg_auth]);
{
caddr_t sumpos = NULL;
"checksum mismatch in IPv6 AH input: %s %s\n",
ipsec6_logpacketstr(ip6, spi), ipsec_logsastr(sav)));
FREE(cksum, M_TEMP);
- ipsec6stat.in_ahauthfail++;
+ IPSEC_STAT_INCREMENT(ipsec6stat.in_ahauthfail);
goto fail;
}
}
sizoff = (sav->flags & SADB_X_EXT_OLD) ? 0 : 4;
IP6_EXTHDR_CHECK(m, off, sizeof(struct ah) + sizoff + siz1
- + sizeof(struct ip6_hdr), IPPROTO_DONE);
+ + sizeof(struct ip6_hdr),
+ {return IPPROTO_DONE;});
nip6 = (struct ip6_hdr *)((u_char *)(ah + 1) + sizoff + siz1);
if (!IN6_ARE_ADDR_EQUAL(&nip6->ip6_src, &ip6->ip6_src)
ipseclog((LOG_DEBUG,
"IPv6 AH input: authentication succeess\n"));
#endif
- ipsec6stat.in_ahauthsucc++;
+ IPSEC_STAT_INCREMENT(ipsec6stat.in_ahauthsucc);
} else {
ipseclog((LOG_WARNING,
"authentication failed in IPv6 AH input: %s %s\n",
ipsec6_logpacketstr(ip6, spi), ipsec_logsastr(sav)));
- ipsec6stat.in_ahauthfail++;
+ IPSEC_STAT_INCREMENT(ipsec6stat.in_ahauthfail);
goto fail;
}
*/
if ((sav->flags & SADB_X_EXT_OLD) == 0 && sav->replay) {
if (ipsec_updatereplay(ntohl(((struct newah *)ah)->ah_seq), sav)) {
- ipsec6stat.in_ahreplay++;
+ IPSEC_STAT_INCREMENT(ipsec6stat.in_ahreplay);
goto fail;
}
}
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
*/
m = m_pullup(m, sizeof(*ip6));
if (!m) {
- ipsec6stat.in_inval++;
+ IPSEC_STAT_INCREMENT(ipsec6stat.in_inval);
goto fail;
}
}
"in IPv6 AH input: %s %s\n",
ipsec6_logpacketstr(ip6, spi),
ipsec_logsastr(sav)));
- ipsec6stat.in_inval++;
+ IPSEC_STAT_INCREMENT(ipsec6stat.in_inval);
goto fail;
}
key_sa_recordxfer(sav, m);
if (ipsec_addhist(m, IPPROTO_AH, spi) != 0 ||
ipsec_addhist(m, IPPROTO_IPV6, 0) != 0) {
- ipsec6stat.in_nomem++;
+ IPSEC_STAT_INCREMENT(ipsec6stat.in_nomem);
goto fail;
}
- s = splimp();
- if (IF_QFULL(&ip6intrq)) {
- ipsec6stat.in_inval++;
- splx(s);
- goto fail;
+ 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_ENQUEUE(&ip6intrq, m);
- m = NULL;
- schednetisr(NETISR_IPV6); /* can be skipped but to make sure */
- splx(s);
+
+ if (proto_input(PF_INET6, m) != 0)
+ goto fail;
nxt = IPPROTO_DONE;
} else {
/*
key_sa_recordxfer(sav, m);
if (ipsec_addhist(m, IPPROTO_AH, spi) != 0) {
- ipsec6stat.in_nomem++;
+ IPSEC_STAT_INCREMENT(ipsec6stat.in_nomem);
goto fail;
}
}
if (sav) {
KEYDEBUG(KEYDEBUG_IPSEC_STAMP,
printf("DP ah6_input call free SA:%p\n", sav));
- key_freesav(sav);
+ key_freesav(sav, KEY_SADB_UNLOCKED);
}
- ipsec6stat.in_success++;
+ IPSEC_STAT_INCREMENT(ipsec6stat.in_success);
return nxt;
fail:
if (sav) {
KEYDEBUG(KEYDEBUG_IPSEC_STAMP,
printf("DP ah6_input call free SA:%p\n", sav));
- key_freesav(sav);
+ key_freesav(sav, KEY_SADB_UNLOCKED);
}
if (m)
m_freem(m);
if (sav->state == SADB_SASTATE_MATURE ||
sav->state == SADB_SASTATE_DYING)
valid++;
- key_freesav(sav);
+ key_freesav(sav, KEY_SADB_UNLOCKED);
}
/* XXX Further validation? */
projects / apple / xnu.git / blobdiff