Deleted Added
sdiff udiff text old ( 55009 ) new ( 62587 )
full compact
mld6.c (55009) mld6.c (62587)
1/* $FreeBSD: head/sys/netinet6/mld6.c 62587 2000-07-04 16:35:15Z itojun $ */
2/* $KAME: mld6.c,v 1.19 2000/05/05 11:01:03 sumikawa Exp $ */
3
1/*
2 * Copyright (C) 1998 WIDE Project.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

--- 11 unchanged lines hidden (view full) ---

20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
4/*
5 * Copyright (C) 1998 WIDE Project.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright

--- 11 unchanged lines hidden (view full) ---

23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
28 *
29 * $FreeBSD: head/sys/netinet6/mld6.c 55009 1999-12-22 19:13:38Z shin $
30 */
31
32/*
33 * Copyright (c) 1988 Stephen Deering.
34 * Copyright (c) 1992, 1993
35 * The Regents of the University of California. All rights reserved.
36 *
37 * This code is derived from software contributed to Berkeley by

--- 25 unchanged lines hidden (view full) ---

63 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
64 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
65 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
66 * SUCH DAMAGE.
67 *
68 * @(#)igmp.c 8.1 (Berkeley) 7/19/93
69 */
70
31 */
32
33/*
34 * Copyright (c) 1988 Stephen Deering.
35 * Copyright (c) 1992, 1993
36 * The Regents of the University of California. All rights reserved.
37 *
38 * This code is derived from software contributed to Berkeley by

--- 25 unchanged lines hidden (view full) ---

64 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
65 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
66 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
67 * SUCH DAMAGE.
68 *
69 * @(#)igmp.c 8.1 (Berkeley) 7/19/93
70 */
71
71#include "opt_ipsec.h"
72#include "opt_inet.h"
73#include "opt_inet6.h"
72
73#include <sys/param.h>
74#include <sys/systm.h>
75#include <sys/mbuf.h>
76#include <sys/socket.h>
77#include <sys/protosw.h>
78#include <sys/syslog.h>
79
80#include <net/if.h>
81
82#include <netinet/in.h>
83#include <netinet/in_var.h>
74
75#include <sys/param.h>
76#include <sys/systm.h>
77#include <sys/mbuf.h>
78#include <sys/socket.h>
79#include <sys/protosw.h>
80#include <sys/syslog.h>
81
82#include <net/if.h>
83
84#include <netinet/in.h>
85#include <netinet/in_var.h>
84#include <netinet6/in6.h>
85#include <netinet6/ip6.h>
86#include <netinet/ip6.h>
86#include <netinet6/ip6_var.h>
87#include <netinet6/ip6_var.h>
87#include <netinet6/icmp6.h>
88#include
88#include <netinet6/mld6_var.h>
89
90#include <net/net_osdep.h>
91
92/*
93 * Protocol constants
94 */
95
96/* denotes that the MLD max response delay field specifies time in milliseconds */
89#include <netinet6/mld6_var.h>
90
91#include <net/net_osdep.h>
92
93/*
94 * Protocol constants
95 */
96
97/* denotes that the MLD max response delay field specifies time in milliseconds */
97#define MLD6_TIMER_SCALE 1000
98#define MLD6_TIMER_SCALE 1000
98/*
99 * time between repetitions of a node's initial report of interest in a
100 * multicast address(in seconds)
101 */
99/*
100 * time between repetitions of a node's initial report of interest in a
101 * multicast address(in seconds)
102 */
102#define MLD6_UNSOLICITED_REPORT_INTERVAL 10
103#define MLD6_UNSOLICITED_REPORT_INTERVAL 10
103
104
104static struct ip6_pktopts ip6_opts;
105static int mld6_timers_are_running;
105static struct ip6_pktopts ip6_opts;
106static int mld6_timers_are_running;
106/* XXX: These are necessary for KAME's link-local hack */
107/* XXX: These are necessary for KAME's link-local hack */
107static struct in6_addr mld6_all_nodes_linklocal =
108 IN6ADDR_LINKLOCAL_ALLNODES_INIT;
109static struct in6_addr mld6_all_routers_linklocal =
110 IN6ADDR_LINKLOCAL_ALLROUTERS_INIT;
108static struct in6_addr mld6_all_nodes_linklocal = IN6ADDR_LINKLOCAL_ALLNODES_INIT;
109static struct in6_addr mld6_all_routers_linklocal = IN6ADDR_LINKLOCAL_ALLROUTERS_INIT;
111
110
112static void mld6_sendpkt __P((struct in6_multi *, int,
113 const struct in6_addr *));
111static void mld6_sendpkt __P((struct in6_multi *, int, const struct in6_addr *));
114
115void
116mld6_init()
117{
118 static u_int8_t hbh_buf[8];
119 struct ip6_hbh *hbh = (struct ip6_hbh *)hbh_buf;
120 u_int16_t rtalert_code = htons((u_int16_t)IP6OPT_RTALERT_MLD);
121
122 mld6_timers_are_running = 0;
123
124 /* ip6h_nxt will be fill in later */
112
113void
114mld6_init()
115{
116 static u_int8_t hbh_buf[8];
117 struct ip6_hbh *hbh = (struct ip6_hbh *)hbh_buf;
118 u_int16_t rtalert_code = htons((u_int16_t)IP6OPT_RTALERT_MLD);
119
120 mld6_timers_are_running = 0;
121
122 /* ip6h_nxt will be fill in later */
125 hbh->ip6h_len = 0; /* (8 >> 3) - 1*/
123 hbh->ip6h_len = 0; /* (8 >> 3) - 1 */
126
127 /* XXX: grotty hard coding... */
128 hbh_buf[2] = IP6OPT_PADN; /* 2 byte padding */
129 hbh_buf[3] = 0;
130 hbh_buf[4] = IP6OPT_RTALERT;
131 hbh_buf[5] = IP6OPT_RTALERT_LEN - 2;
132 bcopy((caddr_t)&rtalert_code, &hbh_buf[6], sizeof(u_int16_t));
133

--- 4 unchanged lines hidden (view full) ---

138
139void
140mld6_start_listening(in6m)
141 struct in6_multi *in6m;
142{
143 int s = splnet();
144
145 /*
124
125 /* XXX: grotty hard coding... */
126 hbh_buf[2] = IP6OPT_PADN; /* 2 byte padding */
127 hbh_buf[3] = 0;
128 hbh_buf[4] = IP6OPT_RTALERT;
129 hbh_buf[5] = IP6OPT_RTALERT_LEN - 2;
130 bcopy((caddr_t)&rtalert_code, &hbh_buf[6], sizeof(u_int16_t));
131

--- 4 unchanged lines hidden (view full) ---

136
137void
138mld6_start_listening(in6m)
139 struct in6_multi *in6m;
140{
141 int s = splnet();
142
143 /*
146 * (draft-ietf-ipngwg-mld, page 10)
144 * RFC2710 page 10:
147 * The node never sends a Report or Done for the link-scope all-nodes
148 * address.
149 * MLD messages are never sent for multicast addresses whose scope is 0
150 * (reserved) or 1 (node-local).
151 */
152 mld6_all_nodes_linklocal.s6_addr16[1] =
153 htons(in6m->in6m_ifp->if_index); /* XXX */
154 if (IN6_ARE_ADDR_EQUAL(&in6m->in6m_addr, &mld6_all_nodes_linklocal) ||

--- 27 unchanged lines hidden (view full) ---

182}
183
184void
185mld6_input(m, off)
186 struct mbuf *m;
187 int off;
188{
189 struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *);
145 * The node never sends a Report or Done for the link-scope all-nodes
146 * address.
147 * MLD messages are never sent for multicast addresses whose scope is 0
148 * (reserved) or 1 (node-local).
149 */
150 mld6_all_nodes_linklocal.s6_addr16[1] =
151 htons(in6m->in6m_ifp->if_index); /* XXX */
152 if (IN6_ARE_ADDR_EQUAL(&in6m->in6m_addr, &mld6_all_nodes_linklocal) ||

--- 27 unchanged lines hidden (view full) ---

180}
181
182void
183mld6_input(m, off)
184 struct mbuf *m;
185 int off;
186{
187 struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *);
190 struct mld6_hdr *mldh = (struct mld6_hdr *)(mtod(m, caddr_t) + off);
188 struct mld6_hdr *mldh;
191 struct ifnet *ifp = m->m_pkthdr.rcvif;
192 struct in6_multi *in6m;
193 struct in6_ifaddr *ia;
194 struct ifmultiaddr *ifma;
195 int timer; /* timer value in the MLD query header */
196
197 /* source address validation */
198 if (!IN6_IS_ADDR_LINKLOCAL(&ip6->ip6_src)) {
199 log(LOG_ERR,
200 "mld6_input: src %s is not link-local\n",
201 ip6_sprintf(&ip6->ip6_src));
202 /*
189 struct ifnet *ifp = m->m_pkthdr.rcvif;
190 struct in6_multi *in6m;
191 struct in6_ifaddr *ia;
192 struct ifmultiaddr *ifma;
193 int timer; /* timer value in the MLD query header */
194
195 /* source address validation */
196 if (!IN6_IS_ADDR_LINKLOCAL(&ip6->ip6_src)) {
197 log(LOG_ERR,
198 "mld6_input: src %s is not link-local\n",
199 ip6_sprintf(&ip6->ip6_src));
200 /*
203 * spec(draft-ietf-ipngwg-mld) does not explicitly
201 * spec (RFC2710) does not explicitly
204 * specify to discard the packet from a non link-local
205 * source address. But we believe it's expected to do so.
206 */
202 * specify to discard the packet from a non link-local
203 * source address. But we believe it's expected to do so.
204 */
205 m_freem(m);
207 return;
208 }
209
206 return;
207 }
208
209#ifndef PULLDOWN_TEST
210 IP6_EXTHDR_CHECK(m, off, sizeof(*mldh),);
211 mldh = (struct mld6_hdr *)(mtod(m, caddr_t) + off);
212#else
213 IP6_EXTHDR_GET(mldh, struct mld6_hdr *, m, off, sizeof(*mldh));
214 if (mldh == NULL) {
215 icmp6stat.icp6s_tooshort++;
216 return;
217 }
218#endif
219
210 /*
211 * In the MLD6 specification, there are 3 states and a flag.
212 *
213 * In Non-Listener state, we simply don't have a membership record.
214 * In Delaying Listener state, our timer is running (in6m->in6m_timer)
215 * In Idle Listener state, our timer is not running (in6m->in6m_timer==0)
216 *
217 * The flag is in6m->in6m_state, it is set to MLD6_OTHERLISTENER if

--- 8 unchanged lines hidden (view full) ---

226 if (!IN6_IS_ADDR_UNSPECIFIED(&mldh->mld6_addr) &&
227 !IN6_IS_ADDR_MULTICAST(&mldh->mld6_addr))
228 break; /* print error or log stat? */
229 if (IN6_IS_ADDR_MC_LINKLOCAL(&mldh->mld6_addr))
230 mldh->mld6_addr.s6_addr16[1] =
231 htons(ifp->if_index); /* XXX */
232
233 /*
220 /*
221 * In the MLD6 specification, there are 3 states and a flag.
222 *
223 * In Non-Listener state, we simply don't have a membership record.
224 * In Delaying Listener state, our timer is running (in6m->in6m_timer)
225 * In Idle Listener state, our timer is not running (in6m->in6m_timer==0)
226 *
227 * The flag is in6m->in6m_state, it is set to MLD6_OTHERLISTENER if

--- 8 unchanged lines hidden (view full) ---

236 if (!IN6_IS_ADDR_UNSPECIFIED(&mldh->mld6_addr) &&
237 !IN6_IS_ADDR_MULTICAST(&mldh->mld6_addr))
238 break; /* print error or log stat? */
239 if (IN6_IS_ADDR_MC_LINKLOCAL(&mldh->mld6_addr))
240 mldh->mld6_addr.s6_addr16[1] =
241 htons(ifp->if_index); /* XXX */
242
243 /*
234 * - Start the timers in all of our membership records
235 * that the query applies to for the interface on
236 * which the query arrived excl. those that belong
237 * to the "all-nodes" group (ff02::1).
238 * - Restart any timer that is already running but has
239 * A value longer than the requested timeout.
240 * - Use the value specified in the query message as
241 * the maximum timeout.
242 */
244 * - Start the timers in all of our membership records
245 * that the query applies to for the interface on
246 * which the query arrived excl. those that belong
247 * to the "all-nodes" group (ff02::1).
248 * - Restart any timer that is already running but has
249 * A value longer than the requested timeout.
250 * - Use the value specified in the query message as
251 * the maximum timeout.
252 */
243 IFP_TO_IA6(ifp, ia);
244 if (ia == NULL)
245 break;
246
247 /*
253 IFP_TO_IA6(ifp, ia);
254 if (ia == NULL)
255 break;
256
257 /*
248 * XXX: System timer resolution is too low to handle Max
249 * Response Delay, so set 1 to the internal timer even if
250 * the calculated value equals to zero when Max Response
251 * Delay is positive.
252 */
258 * XXX: System timer resolution is too low to handle Max
259 * Response Delay, so set 1 to the internal timer even if
260 * the calculated value equals to zero when Max Response
261 * Delay is positive.
262 */
253 timer = ntohs(mldh->mld6_maxdelay)*PR_FASTHZ/MLD6_TIMER_SCALE;
254 if (timer == 0 && mldh->mld6_maxdelay)
255 timer = 1;
256 mld6_all_nodes_linklocal.s6_addr16[1] =
257 htons(ifp->if_index); /* XXX */
258
259 LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
260 {

--- 11 unchanged lines hidden (view full) ---

272 &in6m->in6m_addr))
273 {
274 if (timer == 0) {
275 /* send a report immediately */
276 mld6_sendpkt(in6m, MLD6_LISTENER_REPORT,
277 NULL);
278 in6m->in6m_timer = 0; /* reset timer */
279 in6m->in6m_state = MLD6_IREPORTEDLAST;
263 timer = ntohs(mldh->mld6_maxdelay)*PR_FASTHZ/MLD6_TIMER_SCALE;
264 if (timer == 0 && mldh->mld6_maxdelay)
265 timer = 1;
266 mld6_all_nodes_linklocal.s6_addr16[1] =
267 htons(ifp->if_index); /* XXX */
268
269 LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
270 {

--- 11 unchanged lines hidden (view full) ---

282 &in6m->in6m_addr))
283 {
284 if (timer == 0) {
285 /* send a report immediately */
286 mld6_sendpkt(in6m, MLD6_LISTENER_REPORT,
287 NULL);
288 in6m->in6m_timer = 0; /* reset timer */
289 in6m->in6m_state = MLD6_IREPORTEDLAST;
280 } else if (in6m->in6m_timer == 0 || /*idle state*/
290 }
291 else if (in6m->in6m_timer == 0 || /*idle state*/
281 in6m->in6m_timer > timer) {
282 in6m->in6m_timer =
283 MLD6_RANDOM_DELAY(timer);
284 mld6_timers_are_running = 1;
285 }
286 }
287 }
288
289 if (IN6_IS_ADDR_MC_LINKLOCAL(&mldh->mld6_addr))
290 mldh->mld6_addr.s6_addr16[1] = 0; /* XXX */
291 break;
292 case MLD6_LISTENER_REPORT:
293 /*
292 in6m->in6m_timer > timer) {
293 in6m->in6m_timer =
294 MLD6_RANDOM_DELAY(timer);
295 mld6_timers_are_running = 1;
296 }
297 }
298 }
299
300 if (IN6_IS_ADDR_MC_LINKLOCAL(&mldh->mld6_addr))
301 mldh->mld6_addr.s6_addr16[1] = 0; /* XXX */
302 break;
303 case MLD6_LISTENER_REPORT:
304 /*
294 * For fast leave to work, we have to know that we are the
295 * last person to send a report for this group. Reports
296 * can potentially get looped back if we are a multicast
297 * router, so discard reports sourced by me.
298 * Note that it is impossible to check IFF_LOOPBACK flag of
299 * ifp for this purpose, since ip6_mloopback pass the physical
300 * interface to looutput.
301 */
305 * For fast leave to work, we have to know that we are the
306 * last person to send a report for this group. Reports
307 * can potentially get looped back if we are a multicast
308 * router, so discard reports sourced by me.
309 * Note that it is impossible to check IFF_LOOPBACK flag of
310 * ifp for this purpose, since ip6_mloopback pass the physical
311 * interface to looutput.
312 */
302 if (m->m_flags & M_LOOP) /* XXX: grotty flag, but efficient */
303 break;
304
305 if (!IN6_IS_ADDR_MULTICAST(&mldh->mld6_addr))
306 break;
307
308 if (IN6_IS_ADDR_MC_LINKLOCAL(&mldh->mld6_addr))
309 mldh->mld6_addr.s6_addr16[1] =
310 htons(ifp->if_index); /* XXX */
311 /*
313 if (m->m_flags & M_LOOP) /* XXX: grotty flag, but efficient */
314 break;
315
316 if (!IN6_IS_ADDR_MULTICAST(&mldh->mld6_addr))
317 break;
318
319 if (IN6_IS_ADDR_MC_LINKLOCAL(&mldh->mld6_addr))
320 mldh->mld6_addr.s6_addr16[1] =
321 htons(ifp->if_index); /* XXX */
322 /*
312 * If we belong to the group being reported, stop
313 * our timer for that group.
314 */
323 * If we belong to the group being reported, stop
324 * our timer for that group.
325 */
315 IN6_LOOKUP_MULTI(mldh->mld6_addr, ifp, in6m);
316 if (in6m) {
317 in6m->in6m_timer = 0; /* transit to idle state */
318 in6m->in6m_state = MLD6_OTHERLISTENER; /* clear flag */
319 }
320
321 if (IN6_IS_ADDR_MC_LINKLOCAL(&mldh->mld6_addr))
322 mldh->mld6_addr.s6_addr16[1] = 0; /* XXX */
323 break;
324 default: /* this is impossible */
325 log(LOG_ERR, "mld6_input: illegal type(%d)", mldh->mld6_type);
326 break;
327 }
326 IN6_LOOKUP_MULTI(mldh->mld6_addr, ifp, in6m);
327 if (in6m) {
328 in6m->in6m_timer = 0; /* transit to idle state */
329 in6m->in6m_state = MLD6_OTHERLISTENER; /* clear flag */
330 }
331
332 if (IN6_IS_ADDR_MC_LINKLOCAL(&mldh->mld6_addr))
333 mldh->mld6_addr.s6_addr16[1] = 0; /* XXX */
334 break;
335 default: /* this is impossible */
336 log(LOG_ERR, "mld6_input: illegal type(%d)", mldh->mld6_type);
337 break;
338 }
339
340 m_freem(m);
328}
329
330void
331mld6_fasttimeo()
332{
333 register struct in6_multi *in6m;
334 struct in6_multistep step;
335 int s;

--- 35 unchanged lines hidden (view full) ---

371 struct in6_ifaddr *ia;
372 struct ifnet *ifp = in6m->in6m_ifp;
373 struct ifnet *outif = NULL;
374
375 /*
376 * At first, find a link local address on the outgoing interface
377 * to use as the source address of the MLD packet.
378 */
341}
342
343void
344mld6_fasttimeo()
345{
346 register struct in6_multi *in6m;
347 struct in6_multistep step;
348 int s;

--- 35 unchanged lines hidden (view full) ---

384 struct in6_ifaddr *ia;
385 struct ifnet *ifp = in6m->in6m_ifp;
386 struct ifnet *outif = NULL;
387
388 /*
389 * At first, find a link local address on the outgoing interface
390 * to use as the source address of the MLD packet.
391 */
379 if ((ia = in6ifa_ifpforlinklocal(ifp)) == NULL)
392 if ((ia = in6ifa_ifpforlinklocal(ifp, IN6_IFF_NOTREADY|IN6_IFF_ANYCAST))
393 == NULL)
380 return;
381
382 /*
383 * Allocate mbufs to store ip6 header and MLD header.
384 * We allocate 2 mbufs and make chain in advance because
385 * it is more convenient when inserting the hop-by-hop option later.
386 */
387 MGETHDR(mh, M_DONTWAIT, MT_HEADER);
388 if (mh == NULL)
389 return;
390 MGET(md, M_DONTWAIT, MT_DATA);
391 if (md == NULL) {
392 m_free(mh);
393 return;
394 }
395 mh->m_next = md;
394 return;
395
396 /*
397 * Allocate mbufs to store ip6 header and MLD header.
398 * We allocate 2 mbufs and make chain in advance because
399 * it is more convenient when inserting the hop-by-hop option later.
400 */
401 MGETHDR(mh, M_DONTWAIT, MT_HEADER);
402 if (mh == NULL)
403 return;
404 MGET(md, M_DONTWAIT, MT_DATA);
405 if (md == NULL) {
406 m_free(mh);
407 return;
408 }
409 mh->m_next = md;
410
396 mh->m_pkthdr.len = sizeof(struct ip6_hdr) + sizeof(struct mld6_hdr);
397 mh->m_len = sizeof(struct ip6_hdr);
398 MH_ALIGN(mh, sizeof(struct ip6_hdr));
399
400 /* fill in the ip6 header */
401 ip6 = mtod(mh, struct ip6_hdr *);
402 ip6->ip6_flow = 0;
411 mh->m_pkthdr.len = sizeof(struct ip6_hdr) + sizeof(struct mld6_hdr);
412 mh->m_len = sizeof(struct ip6_hdr);
413 MH_ALIGN(mh, sizeof(struct ip6_hdr));
414
415 /* fill in the ip6 header */
416 ip6 = mtod(mh, struct ip6_hdr *);
417 ip6->ip6_flow = 0;
403 ip6->ip6_vfc = IPV6_VERSION;
418 ip6->ip6_vfc &= ~IPV6_VERSION_MASK;
419 ip6->ip6_vfc |= IPV6_VERSION;
404 /* ip6_plen will be set later */
405 ip6->ip6_nxt = IPPROTO_ICMPV6;
406 /* ip6_hlim will be set by im6o.im6o_multicast_hlim */
407 ip6->ip6_src = ia->ia_addr.sin6_addr;
408 ip6->ip6_dst = dst ? *dst : in6m->in6m_addr;
409
410 /* fill in the MLD header */
411 md->m_len = sizeof(struct mld6_hdr);

--- 14 unchanged lines hidden (view full) ---

426 bzero(&im6o, sizeof(im6o));
427 im6o.im6o_multicast_ifp = ifp;
428 im6o.im6o_multicast_hlim = 1;
429
430 /*
431 * Request loopback of the report if we are acting as a multicast
432 * router, so that the process-level routing daemon can hear it.
433 */
420 /* ip6_plen will be set later */
421 ip6->ip6_nxt = IPPROTO_ICMPV6;
422 /* ip6_hlim will be set by im6o.im6o_multicast_hlim */
423 ip6->ip6_src = ia->ia_addr.sin6_addr;
424 ip6->ip6_dst = dst ? *dst : in6m->in6m_addr;
425
426 /* fill in the MLD header */
427 md->m_len = sizeof(struct mld6_hdr);

--- 14 unchanged lines hidden (view full) ---

442 bzero(&im6o, sizeof(im6o));
443 im6o.im6o_multicast_ifp = ifp;
444 im6o.im6o_multicast_hlim = 1;
445
446 /*
447 * Request loopback of the report if we are acting as a multicast
448 * router, so that the process-level routing daemon can hear it.
449 */
434 im6o.im6o_multicast_loop = 0;
450 im6o.im6o_multicast_loop = (ip6_mrouter != NULL);
435
436 /* increment output statictics */
437 icmp6stat.icp6s_outhist[type]++;
438
439 ip6_output(mh, &ip6_opts, NULL, 0, &im6o, &outif);
440 if (outif) {
441 icmp6_ifstat_inc(outif, ifs6_out_msg);
442 switch(type) {

--- 12 unchanged lines hidden --- 		451
452 /* increment output statictics */
453 icmp6stat.icp6s_outhist[type]++;
454
455 ip6_output(mh, &ip6_opts, NULL, 0, &im6o, &outif);
456 if (outif) {
457 icmp6_ifstat_inc(outif, ifs6_out_msg);
458 switch(type) {

--- 12 unchanged lines hidden ---