/*
- * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2008 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * @APPLE_LICENSE_OSREFERENCE_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.
*
- * 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
+ * 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_LICENSE_OSREFERENCE_HEADER_END@
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* $KAME: in_gif.c,v 1.54 2001/05/14 14:02:16 itojun Exp $ */
#include <sys/sysctl.h>
#include <sys/malloc.h>
+#include <libkern/OSAtomic.h>
#include <net/if.h>
#include <net/route.h>
struct ifnet *ifp,
int family,
struct mbuf *m,
- struct rtentry *rt)
+ __unused struct rtentry *rt)
{
- struct gif_softc *sc = (struct gif_softc*)ifp;
+ struct gif_softc *sc = ifnet_softc(ifp);
struct sockaddr_in *dst = (struct sockaddr_in *)&sc->gif_ro.ro_dst;
struct sockaddr_in *sin_src = (struct sockaddr_in *)sc->gif_psrc;
struct sockaddr_in *sin_dst = (struct sockaddr_in *)sc->gif_pdst;
struct ip iphdr; /* capsule IP header, host byte ordered */
int proto, error;
u_int8_t tos;
+ struct ip_out_args ipoa = { IFSCOPE_NONE };
if (sin_src == NULL || sin_dst == NULL ||
sin_src->sin_family != AF_INET ||
struct ip *ip;
proto = IPPROTO_IPV4;
- if (m->m_len < sizeof(*ip)) {
+ if (mbuf_len(m) < sizeof(*ip)) {
m = m_pullup(m, sizeof(*ip));
if (!m)
return ENOBUFS;
{
struct ip6_hdr *ip6;
proto = IPPROTO_IPV6;
- if (m->m_len < sizeof(*ip6)) {
+ if (mbuf_len(m) < sizeof(*ip6)) {
m = m_pullup(m, sizeof(*ip6));
if (!m)
return ENOBUFS;
/* prepend new IP header */
M_PREPEND(m, sizeof(struct ip), M_DONTWAIT);
- if (m && m->m_len < sizeof(struct ip))
+ if (m && mbuf_len(m) < sizeof(struct ip))
m = m_pullup(m, sizeof(struct ip));
if (m == NULL) {
printf("ENOBUFS in in_gif_output %d\n", __LINE__);
bcopy(&iphdr, mtod(m, struct ip *), sizeof(struct ip));
if (dst->sin_family != sin_dst->sin_family ||
- dst->sin_addr.s_addr != sin_dst->sin_addr.s_addr) {
- /* cache route doesn't match */
+ dst->sin_addr.s_addr != sin_dst->sin_addr.s_addr ||
+ (sc->gif_ro.ro_rt != NULL &&
+ (sc->gif_ro.ro_rt->generation_id != route_generation ||
+ sc->gif_ro.ro_rt->rt_ifp == ifp))) {
+ /* cache route doesn't match or recursive route */
dst->sin_family = sin_dst->sin_family;
dst->sin_len = sizeof(struct sockaddr_in);
dst->sin_addr = sin_dst->sin_addr;
}
/* if it constitutes infinite encapsulation, punt. */
+ RT_LOCK(sc->gif_ro.ro_rt);
if (sc->gif_ro.ro_rt->rt_ifp == ifp) {
+ RT_UNLOCK(sc->gif_ro.ro_rt);
m_freem(m);
return ENETUNREACH; /*XXX*/
}
ifp->if_mtu = sc->gif_ro.ro_rt->rt_ifp->if_mtu
- sizeof(struct ip);
#endif
+ RT_UNLOCK(sc->gif_ro.ro_rt);
}
- error = ip_output(m, NULL, &sc->gif_ro, 0, NULL);
+ error = ip_output(m, NULL, &sc->gif_ro, IP_OUTARGS, NULL, &ipoa);
return(error);
}
{
struct ifnet *gifp = NULL;
struct ip *ip;
- int i, af, proto;
+ int af, proto;
u_int8_t otos;
ip = mtod(m, struct ip *);
proto = ip->ip_p;
- gifp = (struct ifnet *)encap_getarg(m);
+ gifp = ((struct gif_softc*)encap_getarg(m))->gif_if;
if (gifp == NULL || (gifp->if_flags & IFF_UP) == 0) {
m_freem(m);
- ipstat.ips_nogif++;
+ OSAddAtomic(1, &ipstat.ips_nogif);
return;
}
#if INET
case IPPROTO_IPV4:
{
- struct ip *ip;
af = AF_INET;
- if (m->m_len < sizeof(*ip)) {
+ if (mbuf_len(m) < sizeof(*ip)) {
m = m_pullup(m, sizeof(*ip));
if (!m)
return;
struct ip6_hdr *ip6;
u_int8_t itos;
af = AF_INET6;
- if (m->m_len < sizeof(*ip6)) {
+ if (mbuf_len(m) < sizeof(*ip6)) {
m = m_pullup(m, sizeof(*ip6));
if (!m)
return;
}
#endif /* INET6 */
default:
- ipstat.ips_nogif++;
+ OSAddAtomic(1, &ipstat.ips_nogif);
m_freem(m);
return;
}
/* Should we free m if dlil_input returns an error? */
if (m->m_pkthdr.rcvif) /* replace the rcvif by gifp for dlil to route it correctly */
m->m_pkthdr.rcvif = gifp;
- dlil_input_packet(gifp, m, NULL);
+ ifnet_input(gifp, m, NULL);
#else
gif_input(m, af, gifp);
#endif
return;
}
+static __inline__ void*
+_cast_non_const(const void * ptr) {
+ union {
+ const void* cval;
+ void* val;
+ } ret;
+
+ ret.cval = ptr;
+ return (ret.val);
+}
+
/*
* we know that we are in IFF_UP, outer address available, and outer family
* matched the physical addr family. see gif_encapcheck().
*/
int
-gif_encapcheck4(m, off, proto, arg)
- const struct mbuf *m;
- int off;
- int proto;
- void *arg;
+gif_encapcheck4(
+ const struct mbuf *m,
+ __unused int off,
+ __unused int proto,
+ void *arg)
{
struct ip ip;
struct gif_softc *sc;
src = (struct sockaddr_in *)sc->gif_psrc;
dst = (struct sockaddr_in *)sc->gif_pdst;
- /* LINTED const cast */
- m_copydata((struct mbuf *)m, 0, sizeof(ip), (caddr_t)&ip);
+ mbuf_copydata((struct mbuf *)(size_t)m, 0, sizeof(ip), &ip);
/* check for address match */
addrmatch = 0;
return 0;
}
/* reject packets with broadcast on source */
- lck_mtx_lock(rt_mtx);
+ lck_rw_lock_shared(in_ifaddr_rwlock);
for (ia4 = TAILQ_FIRST(&in_ifaddrhead); ia4;
ia4 = TAILQ_NEXT(ia4, ia_link))
{
- if ((ia4->ia_ifa.ifa_ifp->if_flags & IFF_BROADCAST) == 0)
+ if ((ifnet_flags(ia4->ia_ifa.ifa_ifp) & IFF_BROADCAST) == 0)
continue;
if (ip.ip_src.s_addr == ia4->ia_broadaddr.sin_addr.s_addr) {
- lck_mtx_unlock(rt_mtx);
+ lck_rw_done(in_ifaddr_rwlock);
return 0;
}
}
- lck_mtx_unlock(rt_mtx);
+ lck_rw_done(in_ifaddr_rwlock);
/* ingress filters on outer source */
- if ((sc->gif_if.if_flags & IFF_LINK2) == 0 &&
+ if ((ifnet_flags(sc->gif_if) & IFF_LINK2) == 0 &&
(m->m_flags & M_PKTHDR) != 0 && m->m_pkthdr.rcvif) {
struct sockaddr_in sin;
struct rtentry *rt;
sin.sin_family = AF_INET;
sin.sin_len = sizeof(struct sockaddr_in);
sin.sin_addr = ip.ip_src;
- rt = rtalloc1((struct sockaddr *)&sin, 0, 0UL);
- if (!rt || rt->rt_ifp != m->m_pkthdr.rcvif) {
+ rt = rtalloc1_scoped((struct sockaddr *)&sin, 0, 0,
+ m->m_pkthdr.rcvif->if_index);
+ if (rt != NULL)
+ RT_LOCK(rt);
+ if (rt == NULL || rt->rt_ifp != m->m_pkthdr.rcvif) {
#if 0
log(LOG_WARNING, "%s: packet from 0x%x dropped "
"due to ingress filter\n", if_name(&sc->gif_if),
(u_int32_t)ntohl(sin.sin_addr.s_addr));
#endif
- if (rt)
+ if (rt != NULL) {
+ RT_UNLOCK(rt);
rtfree(rt);
+ }
return 0;
}
+ RT_UNLOCK(rt);
rtfree(rt);
}
projects / apple / xnu.git / blobdiff