43bc7a9c62
were unused or already in if_var.h so add if_name() to if_var.h and remove net_osdep.h along with all references to it. Longer term we may want to kill off if_name() entierly since all modern BSDs have if_xname variables rendering it unnecessicary.
650 lines
18 KiB
C
650 lines
18 KiB
C
/* $FreeBSD$ */
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/* $KAME: mld6.c,v 1.27 2001/04/04 05:17:30 itojun Exp $ */
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/*-
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* Copyright (C) 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 1988 Stephen Deering.
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Stephen Deering of Stanford University.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)igmp.c 8.1 (Berkeley) 7/19/93
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*/
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#include "opt_inet.h"
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#include "opt_inet6.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/socket.h>
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#include <sys/protosw.h>
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#include <sys/syslog.h>
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#include <sys/kernel.h>
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#include <sys/callout.h>
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#include <sys/malloc.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <netinet/in_var.h>
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#include <netinet6/in6_var.h>
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#include <netinet/ip6.h>
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#include <netinet6/ip6_var.h>
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#include <netinet6/scope6_var.h>
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#include <netinet/icmp6.h>
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#include <netinet6/mld6_var.h>
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/*
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* Protocol constants
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*/
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/* denotes that the MLD max response delay field specifies time in milliseconds */
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#define MLD_TIMER_SCALE 1000
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/*
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* time between repetitions of a node's initial report of interest in a
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* multicast address(in seconds)
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*/
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#define MLD_UNSOLICITED_REPORT_INTERVAL 10
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static struct ip6_pktopts ip6_opts;
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static void mld6_sendpkt(struct in6_multi *, int, const struct in6_addr *);
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static void mld_starttimer(struct in6_multi *);
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static void mld_stoptimer(struct in6_multi *);
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static void mld_timeo(struct in6_multi *);
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static u_long mld_timerresid(struct in6_multi *);
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void
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mld6_init()
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{
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static u_int8_t hbh_buf[8];
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struct ip6_hbh *hbh = (struct ip6_hbh *)hbh_buf;
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u_int16_t rtalert_code = htons((u_int16_t)IP6OPT_RTALERT_MLD);
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/* ip6h_nxt will be fill in later */
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hbh->ip6h_len = 0; /* (8 >> 3) - 1 */
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/* XXX: grotty hard coding... */
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hbh_buf[2] = IP6OPT_PADN; /* 2 byte padding */
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hbh_buf[3] = 0;
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hbh_buf[4] = IP6OPT_ROUTER_ALERT;
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hbh_buf[5] = IP6OPT_RTALERT_LEN - 2;
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bcopy((caddr_t)&rtalert_code, &hbh_buf[6], sizeof(u_int16_t));
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ip6_initpktopts(&ip6_opts);
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ip6_opts.ip6po_hbh = hbh;
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}
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static void
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mld_starttimer(in6m)
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struct in6_multi *in6m;
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{
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struct timeval now;
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microtime(&now);
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in6m->in6m_timer_expire.tv_sec = now.tv_sec + in6m->in6m_timer / hz;
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in6m->in6m_timer_expire.tv_usec = now.tv_usec +
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(in6m->in6m_timer % hz) * (1000000 / hz);
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if (in6m->in6m_timer_expire.tv_usec > 1000000) {
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in6m->in6m_timer_expire.tv_sec++;
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in6m->in6m_timer_expire.tv_usec -= 1000000;
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}
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/* start or restart the timer */
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callout_reset(in6m->in6m_timer_ch, in6m->in6m_timer,
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(void (*) __P((void *)))mld_timeo, in6m);
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}
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static void
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mld_stoptimer(in6m)
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struct in6_multi *in6m;
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{
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if (in6m->in6m_timer == IN6M_TIMER_UNDEF)
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return;
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callout_stop(in6m->in6m_timer_ch);
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in6m->in6m_timer = IN6M_TIMER_UNDEF;
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}
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static void
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mld_timeo(in6m)
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struct in6_multi *in6m;
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{
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int s = splnet();
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in6m->in6m_timer = IN6M_TIMER_UNDEF;
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callout_stop(in6m->in6m_timer_ch);
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switch (in6m->in6m_state) {
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case MLD_REPORTPENDING:
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mld6_start_listening(in6m);
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break;
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default:
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mld6_sendpkt(in6m, MLD_LISTENER_REPORT, NULL);
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break;
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}
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splx(s);
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}
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static u_long
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mld_timerresid(in6m)
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struct in6_multi *in6m;
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{
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struct timeval now, diff;
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microtime(&now);
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if (now.tv_sec > in6m->in6m_timer_expire.tv_sec ||
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(now.tv_sec == in6m->in6m_timer_expire.tv_sec &&
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now.tv_usec > in6m->in6m_timer_expire.tv_usec)) {
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return (0);
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}
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diff = in6m->in6m_timer_expire;
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diff.tv_sec -= now.tv_sec;
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diff.tv_usec -= now.tv_usec;
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if (diff.tv_usec < 0) {
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diff.tv_sec--;
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diff.tv_usec += 1000000;
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}
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/* return the remaining time in milliseconds */
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return (((u_long)(diff.tv_sec * 1000000 + diff.tv_usec)) / 1000);
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}
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void
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mld6_start_listening(in6m)
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struct in6_multi *in6m;
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{
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struct in6_addr all_in6;
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int s = splnet();
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/*
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* RFC2710 page 10:
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* The node never sends a Report or Done for the link-scope all-nodes
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* address.
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* MLD messages are never sent for multicast addresses whose scope is 0
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* (reserved) or 1 (node-local).
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*/
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all_in6 = in6addr_linklocal_allnodes;
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if (in6_setscope(&all_in6, in6m->in6m_ifp, NULL)) {
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/* XXX: this should not happen! */
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in6m->in6m_timer = 0;
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in6m->in6m_state = MLD_OTHERLISTENER;
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}
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if (IN6_ARE_ADDR_EQUAL(&in6m->in6m_addr, &all_in6) ||
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IPV6_ADDR_MC_SCOPE(&in6m->in6m_addr) <
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IPV6_ADDR_SCOPE_LINKLOCAL) {
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in6m->in6m_timer = 0;
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in6m->in6m_state = MLD_OTHERLISTENER;
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} else {
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mld6_sendpkt(in6m, MLD_LISTENER_REPORT, NULL);
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in6m->in6m_timer = arc4random() %
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MLD_UNSOLICITED_REPORT_INTERVAL * hz;
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in6m->in6m_state = MLD_IREPORTEDLAST;
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mld_starttimer(in6m);
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}
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splx(s);
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}
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void
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mld6_stop_listening(in6m)
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struct in6_multi *in6m;
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{
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struct in6_addr allnode, allrouter;
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allnode = in6addr_linklocal_allnodes;
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if (in6_setscope(&allnode, in6m->in6m_ifp, NULL)) {
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/* XXX: this should not happen! */
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return;
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}
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allrouter = in6addr_linklocal_allrouters;
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if (in6_setscope(&allrouter, in6m->in6m_ifp, NULL)) {
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/* XXX impossible */
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return;
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}
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if (in6m->in6m_state == MLD_IREPORTEDLAST &&
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!IN6_ARE_ADDR_EQUAL(&in6m->in6m_addr, &allnode) &&
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IPV6_ADDR_MC_SCOPE(&in6m->in6m_addr) >
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IPV6_ADDR_SCOPE_INTFACELOCAL) {
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mld6_sendpkt(in6m, MLD_LISTENER_DONE, &allrouter);
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}
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}
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void
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mld6_input(m, off)
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struct mbuf *m;
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int off;
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{
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struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *);
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struct mld_hdr *mldh;
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struct ifnet *ifp = m->m_pkthdr.rcvif;
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struct in6_multi *in6m;
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struct in6_addr mld_addr, all_in6;
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struct in6_ifaddr *ia;
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struct ifmultiaddr *ifma;
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int timer; /* timer value in the MLD query header */
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#ifndef PULLDOWN_TEST
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IP6_EXTHDR_CHECK(m, off, sizeof(*mldh),);
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mldh = (struct mld_hdr *)(mtod(m, caddr_t) + off);
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#else
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IP6_EXTHDR_GET(mldh, struct mld_hdr *, m, off, sizeof(*mldh));
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if (mldh == NULL) {
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icmp6stat.icp6s_tooshort++;
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return;
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}
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#endif
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/* source address validation */
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ip6 = mtod(m, struct ip6_hdr *); /* in case mpullup */
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if (!IN6_IS_ADDR_LINKLOCAL(&ip6->ip6_src)) {
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log(LOG_ERR,
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"mld6_input: src %s is not link-local (grp=%s)\n",
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ip6_sprintf(&ip6->ip6_src),
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ip6_sprintf(&mldh->mld_addr));
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/*
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* spec (RFC2710) does not explicitly
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* specify to discard the packet from a non link-local
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* source address. But we believe it's expected to do so.
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* XXX: do we have to allow :: as source?
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*/
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m_freem(m);
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return;
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}
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/*
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* make a copy for local work (in6_setscope() may modify the 1st arg)
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*/
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mld_addr = mldh->mld_addr;
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if (in6_setscope(&mld_addr, ifp, NULL)) {
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/* XXX: this should not happen! */
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m_free(m);
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return;
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}
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/*
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* In the MLD6 specification, there are 3 states and a flag.
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*
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* In Non-Listener state, we simply don't have a membership record.
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* In Delaying Listener state, our timer is running (in6m->in6m_timer)
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* In Idle Listener state, our timer is not running
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* (in6m->in6m_timer==IN6M_TIMER_UNDEF)
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*
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* The flag is in6m->in6m_state, it is set to MLD_OTHERLISTENER if
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* we have heard a report from another member, or MLD_IREPORTEDLAST
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* if we sent the last report.
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*/
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switch(mldh->mld_type) {
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case MLD_LISTENER_QUERY:
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if (ifp->if_flags & IFF_LOOPBACK)
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break;
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if (!IN6_IS_ADDR_UNSPECIFIED(&mld_addr) &&
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!IN6_IS_ADDR_MULTICAST(&mld_addr))
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break; /* print error or log stat? */
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all_in6 = in6addr_linklocal_allnodes;
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if (in6_setscope(&all_in6, ifp, NULL)) {
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/* XXX: this should not happen! */
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break;
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}
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/*
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* - Start the timers in all of our membership records
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* that the query applies to for the interface on
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* which the query arrived excl. those that belong
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* to the "all-nodes" group (ff02::1).
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* - Restart any timer that is already running but has
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* A value longer than the requested timeout.
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* - Use the value specified in the query message as
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* the maximum timeout.
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*/
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timer = ntohs(mldh->mld_maxdelay);
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IFP_TO_IA6(ifp, ia);
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if (ia == NULL)
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break;
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/*
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* XXX: System timer resolution is too low to handle Max
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* Response Delay, so set 1 to the internal timer even if
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* the calculated value equals to zero when Max Response
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* Delay is positive.
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*/
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timer = ntohs(mldh->mld_maxdelay) * PR_FASTHZ / MLD_TIMER_SCALE;
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if (timer == 0 && mldh->mld_maxdelay)
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timer = 1;
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IF_ADDR_LOCK(ifp);
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TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
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if (ifma->ifma_addr->sa_family != AF_INET6)
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continue;
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in6m = (struct in6_multi *)ifma->ifma_protospec;
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if (IN6_ARE_ADDR_EQUAL(&in6m->in6m_addr, &all_in6) ||
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IPV6_ADDR_MC_SCOPE(&in6m->in6m_addr) <
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IPV6_ADDR_SCOPE_LINKLOCAL)
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continue;
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if (IN6_IS_ADDR_UNSPECIFIED(&mld_addr) ||
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IN6_ARE_ADDR_EQUAL(&mld_addr, &in6m->in6m_addr)) {
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if (timer == 0) {
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/* send a report immediately */
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mld_stoptimer(in6m);
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mld6_sendpkt(in6m, MLD_LISTENER_REPORT,
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NULL);
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in6m->in6m_timer = 0; /* reset timer */
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in6m->in6m_state = MLD_IREPORTEDLAST;
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}
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else if (in6m->in6m_timer == IN6M_TIMER_UNDEF ||
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mld_timerresid(in6m) > (u_long)timer) {
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in6m->in6m_timer = arc4random() %
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(int)((long)(timer * hz) / 1000);
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mld_starttimer(in6m);
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}
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}
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}
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IF_ADDR_UNLOCK(ifp);
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break;
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case MLD_LISTENER_REPORT:
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/*
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* For fast leave to work, we have to know that we are the
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* last person to send a report for this group. Reports
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* can potentially get looped back if we are a multicast
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* router, so discard reports sourced by me.
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* Note that it is impossible to check IFF_LOOPBACK flag of
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* ifp for this purpose, since ip6_mloopback pass the physical
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* interface to looutput.
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*/
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if (m->m_flags & M_LOOP) /* XXX: grotty flag, but efficient */
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break;
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if (!IN6_IS_ADDR_MULTICAST(&mld_addr))
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break;
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/*
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* If we belong to the group being reported, stop
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* our timer for that group.
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*/
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IN6_LOOKUP_MULTI(mld_addr, ifp, in6m);
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if (in6m) {
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in6m->in6m_timer = 0; /* transit to idle state */
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in6m->in6m_state = MLD_OTHERLISTENER; /* clear flag */
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}
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break;
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default: /* this is impossible */
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log(LOG_ERR, "mld6_input: illegal type(%d)", mldh->mld_type);
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break;
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}
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m_freem(m);
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}
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static void
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mld6_sendpkt(in6m, type, dst)
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struct in6_multi *in6m;
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int type;
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const struct in6_addr *dst;
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{
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struct mbuf *mh, *md;
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struct mld_hdr *mldh;
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struct ip6_hdr *ip6;
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struct ip6_moptions im6o;
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struct in6_ifaddr *ia;
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struct ifnet *ifp = in6m->in6m_ifp;
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struct ifnet *outif = NULL;
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/*
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* At first, find a link local address on the outgoing interface
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* to use as the source address of the MLD packet.
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*/
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if ((ia = in6ifa_ifpforlinklocal(ifp, IN6_IFF_NOTREADY|IN6_IFF_ANYCAST))
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== NULL)
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return;
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/*
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* Allocate mbufs to store ip6 header and MLD header.
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* We allocate 2 mbufs and make chain in advance because
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* it is more convenient when inserting the hop-by-hop option later.
|
|
*/
|
|
MGETHDR(mh, M_DONTWAIT, MT_HEADER);
|
|
if (mh == NULL)
|
|
return;
|
|
MGET(md, M_DONTWAIT, MT_DATA);
|
|
if (md == NULL) {
|
|
m_free(mh);
|
|
return;
|
|
}
|
|
mh->m_next = md;
|
|
|
|
mh->m_pkthdr.rcvif = NULL;
|
|
mh->m_pkthdr.len = sizeof(struct ip6_hdr) + sizeof(struct mld_hdr);
|
|
mh->m_len = sizeof(struct ip6_hdr);
|
|
MH_ALIGN(mh, sizeof(struct ip6_hdr));
|
|
|
|
/* fill in the ip6 header */
|
|
ip6 = mtod(mh, struct ip6_hdr *);
|
|
ip6->ip6_flow = 0;
|
|
ip6->ip6_vfc &= ~IPV6_VERSION_MASK;
|
|
ip6->ip6_vfc |= IPV6_VERSION;
|
|
/* ip6_plen will be set later */
|
|
ip6->ip6_nxt = IPPROTO_ICMPV6;
|
|
/* ip6_hlim will be set by im6o.im6o_multicast_hlim */
|
|
ip6->ip6_src = ia->ia_addr.sin6_addr;
|
|
ip6->ip6_dst = dst ? *dst : in6m->in6m_addr;
|
|
|
|
/* fill in the MLD header */
|
|
md->m_len = sizeof(struct mld_hdr);
|
|
mldh = mtod(md, struct mld_hdr *);
|
|
mldh->mld_type = type;
|
|
mldh->mld_code = 0;
|
|
mldh->mld_cksum = 0;
|
|
/* XXX: we assume the function will not be called for query messages */
|
|
mldh->mld_maxdelay = 0;
|
|
mldh->mld_reserved = 0;
|
|
mldh->mld_addr = in6m->in6m_addr;
|
|
in6_clearscope(&mldh->mld_addr); /* XXX */
|
|
mldh->mld_cksum = in6_cksum(mh, IPPROTO_ICMPV6, sizeof(struct ip6_hdr),
|
|
sizeof(struct mld_hdr));
|
|
|
|
/* construct multicast option */
|
|
bzero(&im6o, sizeof(im6o));
|
|
im6o.im6o_multicast_ifp = ifp;
|
|
im6o.im6o_multicast_hlim = 1;
|
|
|
|
/*
|
|
* Request loopback of the report if we are acting as a multicast
|
|
* router, so that the process-level routing daemon can hear it.
|
|
*/
|
|
im6o.im6o_multicast_loop = (ip6_mrouter != NULL);
|
|
|
|
/* increment output statictics */
|
|
icmp6stat.icp6s_outhist[type]++;
|
|
|
|
ip6_output(mh, &ip6_opts, NULL, 0, &im6o, &outif, NULL);
|
|
if (outif) {
|
|
icmp6_ifstat_inc(outif, ifs6_out_msg);
|
|
switch (type) {
|
|
case MLD_LISTENER_QUERY:
|
|
icmp6_ifstat_inc(outif, ifs6_out_mldquery);
|
|
break;
|
|
case MLD_LISTENER_REPORT:
|
|
icmp6_ifstat_inc(outif, ifs6_out_mldreport);
|
|
break;
|
|
case MLD_LISTENER_DONE:
|
|
icmp6_ifstat_inc(outif, ifs6_out_mlddone);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Add an address to the list of IP6 multicast addresses for a given interface.
|
|
* Add source addresses to the list also, if upstream router is MLDv2 capable
|
|
* and the number of source is not 0.
|
|
*/
|
|
struct in6_multi *
|
|
in6_addmulti(maddr6, ifp, errorp, delay)
|
|
struct in6_addr *maddr6;
|
|
struct ifnet *ifp;
|
|
int *errorp, delay;
|
|
{
|
|
struct in6_multi *in6m;
|
|
struct ifmultiaddr *ifma;
|
|
struct sockaddr_in6 sa6;
|
|
int s = splnet();
|
|
|
|
*errorp = 0;
|
|
|
|
/*
|
|
* Call generic routine to add membership or increment
|
|
* refcount. It wants addresses in the form of a sockaddr,
|
|
* so we build one here (being careful to zero the unused bytes).
|
|
*/
|
|
bzero(&sa6, sizeof(sa6));
|
|
sa6.sin6_family = AF_INET6;
|
|
sa6.sin6_len = sizeof(struct sockaddr_in6);
|
|
sa6.sin6_addr = *maddr6;
|
|
*errorp = if_addmulti(ifp, (struct sockaddr *)&sa6, &ifma);
|
|
if (*errorp) {
|
|
splx(s);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* If ifma->ifma_protospec is null, then if_addmulti() created
|
|
* a new record. Otherwise, we are done.
|
|
*/
|
|
if (ifma->ifma_protospec != NULL) {
|
|
splx(s);
|
|
return ifma->ifma_protospec;
|
|
}
|
|
|
|
/* XXX - if_addmulti uses M_WAITOK. Can this really be called
|
|
at interrupt time? If so, need to fix if_addmulti. XXX */
|
|
in6m = (struct in6_multi *)malloc(sizeof(*in6m), M_IP6MADDR, M_NOWAIT);
|
|
if (in6m == NULL) {
|
|
splx(s);
|
|
return (NULL);
|
|
}
|
|
|
|
bzero(in6m, sizeof *in6m);
|
|
in6m->in6m_addr = *maddr6;
|
|
in6m->in6m_ifp = ifp;
|
|
in6m->in6m_refcount = 1;
|
|
in6m->in6m_ifma = ifma;
|
|
ifma->ifma_protospec = in6m;
|
|
in6m->in6m_timer_ch = malloc(sizeof(*in6m->in6m_timer_ch), M_IP6MADDR,
|
|
M_NOWAIT);
|
|
if (in6m->in6m_timer_ch == NULL) {
|
|
free(in6m, M_IP6MADDR);
|
|
splx(s);
|
|
return (NULL);
|
|
}
|
|
LIST_INSERT_HEAD(&in6_multihead, in6m, in6m_entry);
|
|
|
|
callout_init(in6m->in6m_timer_ch, 0);
|
|
in6m->in6m_timer = delay;
|
|
if (in6m->in6m_timer > 0) {
|
|
in6m->in6m_state = MLD_REPORTPENDING;
|
|
mld_starttimer(in6m);
|
|
|
|
splx(s);
|
|
return (in6m);
|
|
}
|
|
|
|
/*
|
|
* Let MLD6 know that we have joined a new IPv6 multicast
|
|
* group.
|
|
*/
|
|
mld6_start_listening(in6m);
|
|
splx(s);
|
|
return (in6m);
|
|
}
|
|
|
|
/*
|
|
* Delete a multicast address record.
|
|
*/
|
|
void
|
|
in6_delmulti(in6m)
|
|
struct in6_multi *in6m;
|
|
{
|
|
struct ifmultiaddr *ifma = in6m->in6m_ifma;
|
|
int s = splnet();
|
|
|
|
if (ifma->ifma_refcount == 1) {
|
|
/*
|
|
* No remaining claims to this record; let MLD6 know
|
|
* that we are leaving the multicast group.
|
|
*/
|
|
mld_stoptimer(in6m);
|
|
mld6_stop_listening(in6m);
|
|
ifma->ifma_protospec = NULL;
|
|
LIST_REMOVE(in6m, in6m_entry);
|
|
free(in6m->in6m_timer_ch, M_IP6MADDR);
|
|
free(in6m, M_IP6MADDR);
|
|
}
|
|
/* XXX - should be separate API for when we have an ifma? */
|
|
if_delmulti(ifma->ifma_ifp, ifma->ifma_addr);
|
|
splx(s);
|
|
}
|