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Lock raw IP socket pcb list and PCBs when processing input via

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icmp6_rip6_input().

Reviewed by:	gnn
MFC after:	1 week
This commit is contained in:
Robert Watson 2005-02-08 22:16:26 +00:00
parent 647ceb6a94
commit 62a2c81733
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=141545
1 changed files with 13 additions and 5 deletions
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18
sys/netinet6/icmp6.c
View file

@ -1898,21 +1898,26 @@ icmp6_rip6_input(mp, off)
/* KAME hack: recover scopeid */
(void)in6_recoverscope(&fromsa, &ip6->ip6_src, m->m_pkthdr.rcvif);
INP_INFO_RLOCK(&ripcbinfo);
LIST_FOREACH(in6p, &ripcb, inp_list) {
if ((in6p->inp_vflag & INP_IPV6) == 0)
INP_LOCK(in6p);
if ((in6p->inp_vflag & INP_IPV6) == 0) {
docontinue:
INP_UNLOCK(in6p);
continue;
}
if (in6p->in6p_ip6_nxt != IPPROTO_ICMPV6)
continue;
goto docontinue;
if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_laddr) &&
!IN6_ARE_ADDR_EQUAL(&in6p->in6p_laddr, &ip6->ip6_dst))
continue;
goto docontinue;
if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_faddr) &&
!IN6_ARE_ADDR_EQUAL(&in6p->in6p_faddr, &ip6->ip6_src))
continue;
goto docontinue;
if (in6p->in6p_icmp6filt
&& ICMP6_FILTER_WILLBLOCK(icmp6->icmp6_type,
in6p->in6p_icmp6filt))
continue;
goto docontinue;
if (last) {
struct mbuf *n = NULL;
@ -1960,6 +1965,7 @@ icmp6_rip6_input(mp, off)
sorwakeup(last->in6p_socket);
opts = NULL;
}
INP_UNLOCK(last);
}
last = in6p;
}
@ -1991,10 +1997,12 @@ icmp6_rip6_input(mp, off)
m_freem(opts);
} else
sorwakeup(last->in6p_socket);
INP_UNLOCK(last);
} else {
m_freem(m);
ip6stat.ip6s_delivered--;
}
INP_INFO_RUNLOCK(&ripcbinfo);
return IPPROTO_DONE;
}