+/*
+ * 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/mld6.c,v 1.4.2.2 2001/07/03 11:01:54 ume Exp $ */
/* $KAME: mld6.c,v 1.27 2001/04/04 05:17:30 itojun Exp $ */
*
* @(#)igmp.c 8.1 (Berkeley) 7/19/93
*/
-
+/*
+ * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce
+ * support for mandatory and extensible security protections. This notice
+ * is included in support of clause 2.2 (b) of the Apple Public License,
+ * Version 2.0.
+ */
#include <sys/param.h>
#include <sys/systm.h>
#include <net/net_osdep.h>
+#if CONFIG_MACF_NET
+#include <security/mac.h>
+#endif /* MAC_NET */
+
/*
* Protocol constants
*/
*/
#define MLD6_UNSOLICITED_REPORT_INTERVAL 10
+extern lck_mtx_t *nd6_mutex;
static struct ip6_pktopts ip6_opts;
static int mld6_timers_are_running;
static int mld6_init_done = 0 ;
static struct in6_addr mld6_all_nodes_linklocal = IN6ADDR_LINKLOCAL_ALLNODES_INIT;
static struct in6_addr mld6_all_routers_linklocal = IN6ADDR_LINKLOCAL_ALLROUTERS_INIT;
-static void mld6_sendpkt __P((struct in6_multi *, int, const struct in6_addr *));
+static void mld6_sendpkt(struct in6_multi *, int, const struct in6_addr *);
void
mld6_init()
hbh_buf[5] = IP6OPT_RTALERT_LEN - 2;
bcopy((caddr_t)&rtalert_code, &hbh_buf[6], sizeof(u_int16_t));
- init_ip6pktopts(&ip6_opts);
+ ip6_initpktopts(&ip6_opts);
ip6_opts.ip6po_hbh = hbh;
}
void
-mld6_start_listening(in6m)
- struct in6_multi *in6m;
+mld6_start_listening(
+ struct in6_multi *in6m)
{
- int s = splnet();
-
/*
* RFC2710 page 10:
* The node never sends a Report or Done for the link-scope all-nodes
in6m->in6m_state = MLD6_IREPORTEDLAST;
mld6_timers_are_running = 1;
}
- splx(s);
}
void
-mld6_stop_listening(in6m)
- struct in6_multi *in6m;
+mld6_stop_listening(
+ struct in6_multi *in6m)
{
mld6_all_nodes_linklocal.s6_addr16[1] =
htons(in6m->in6m_ifp->if_index); /* XXX */
}
void
-mld6_input(m, off)
- struct mbuf *m;
- int off;
+mld6_input(
+ struct mbuf *m,
+ int off)
{
struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *);
struct mld6_hdr *mldh;
int timer; /* timer value in the MLD query header */
#ifndef PULLDOWN_TEST
- IP6_EXTHDR_CHECK(m, off, sizeof(*mldh),);
+ IP6_EXTHDR_CHECK(m, off, sizeof(*mldh), return);
mldh = (struct mld6_hdr *)(mtod(m, caddr_t) + off);
#else
IP6_EXTHDR_GET(mldh, struct mld6_hdr *, m, off, sizeof(*mldh));
* - Use the value specified in the query message as
* the maximum timeout.
*/
+ ifnet_lock_exclusive(ifp);
IFP_TO_IA6(ifp, ia);
if (ia == NULL)
break;
}
}
}
+ ifnet_lock_done(ifp);
if (IN6_IS_ADDR_MC_LINKLOCAL(&mldh->mld6_addr))
mldh->mld6_addr.s6_addr16[1] = 0; /* XXX */
* If we belong to the group being reported, stop
* our timer for that group.
*/
+ ifnet_lock_shared(ifp);
IN6_LOOKUP_MULTI(mldh->mld6_addr, ifp, in6m);
if (in6m) {
in6m->in6m_timer = 0; /* transit to idle state */
in6m->in6m_state = MLD6_OTHERLISTENER; /* clear flag */
}
+ ifnet_lock_done(ifp);
if (IN6_IS_ADDR_MC_LINKLOCAL(&mldh->mld6_addr))
mldh->mld6_addr.s6_addr16[1] = 0; /* XXX */
{
struct in6_multi *in6m;
struct in6_multistep step;
- int s;
/*
* Quick check to see if any work needs to be done, in order
if (!mld6_timers_are_running)
return;
- s = splnet();
+ lck_mtx_lock(nd6_mutex);
mld6_timers_are_running = 0;
IN6_FIRST_MULTI(step, in6m);
while (in6m != NULL) {
}
IN6_NEXT_MULTI(step, in6m);
}
- splx(s);
+ lck_mtx_unlock(nd6_mutex);
}
static void
-mld6_sendpkt(in6m, type, dst)
- struct in6_multi *in6m;
- int type;
- const struct in6_addr *dst;
+mld6_sendpkt(
+ struct in6_multi *in6m,
+ int type,
+ const struct in6_addr *dst)
{
struct mbuf *mh, *md;
struct mld6_hdr *mldh;
* it is more convenient when inserting the hop-by-hop option later.
*/
MGETHDR(mh, M_DONTWAIT, MT_HEADER);
- if (mh == NULL)
+ if (mh == NULL) {
+ ifafree(&ia->ia_ifa);
return;
+ }
MGET(md, M_DONTWAIT, MT_DATA);
if (md == NULL) {
m_free(mh);
+ ifafree(&ia->ia_ifa);
return;
}
mh->m_next = md;
mh->m_pkthdr.rcvif = NULL;
+#ifdef __darwin8_notyet
+#if CONFIG_MACF_NET
+ mac_create_mbuf_linklayer(in6m->in6m_ifp, m);
+#endif
+#endif
mh->m_pkthdr.len = sizeof(struct ip6_hdr) + sizeof(struct mld6_hdr);
mh->m_len = sizeof(struct ip6_hdr);
MH_ALIGN(mh, sizeof(struct ip6_hdr));
/* increment output statictics */
icmp6stat.icp6s_outhist[type]++;
- ip6_output(mh, &ip6_opts, NULL, 0, &im6o, &outif);
+ ip6_output(mh, &ip6_opts, NULL, 0, &im6o, &outif, 0);
if (outif) {
icmp6_ifstat_inc(outif, ifs6_out_msg);
switch (type) {
break;
}
}
+ ifafree(&ia->ia_ifa);
}
+
projects / apple / xnu.git / blobdiff