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call icmp6_mtudisc_update(foo, 0) even if ICMPv6 messages are very short. 

let icmp6 layer decide whether we take PMTUD routes or not.
This commit is contained in:
itojun 2001-05-24 07:22:27 +00:00
parent c9b9613b3e
commit a7596d1912
2 changed files with 12 additions and 4 deletions
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9
sys/netinet/tcp_subr.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: tcp_subr.c,v 1.109 2001/03/21 03:35:11 chs Exp $ */
/* $NetBSD: tcp_subr.c,v 1.110 2001/05/24 07:22:27 itojun Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@ -1170,8 +1170,11 @@ tcp6_ctlinput(cmd, sa, d)
*/
/* check if we can safely examine src and dst ports */
if (m->m_pkthdr.len < off + sizeof(th))
if (m->m_pkthdr.len < off + sizeof(th)) {
if (cmd == PRC_MSGSIZE)
icmp6_mtudisc_update((struct ip6ctlparam *)d, 0);
return;
}
bzero(&th, sizeof(th));
m_copydata(m, off, sizeof(th), (caddr_t)&th);
@ -1251,6 +1254,8 @@ tcp_ctlinput(cmd, sa, v)
* Check to see if we have a valid TCP connection
* corresponding to the address in the ICMP message
* payload.
*
* Boundary check is made in icmp_input(), with ICMP_ADVLENMIN.
*/
th = (struct tcphdr *)((caddr_t)ip + (ip->ip_hl << 2));
if (in_pcblookup_connect(&tcbtable,

7
sys/netinet6/udp6_usrreq.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: udp6_usrreq.c,v 1.41 2001/05/08 10:15:15 itojun Exp $ */
/* $NetBSD: udp6_usrreq.c,v 1.42 2001/05/24 07:22:28 itojun Exp $ */
/* $KAME: udp6_usrreq.c,v 1.84 2001/02/07 07:38:25 itojun Exp $ */
/*
@ -521,8 +521,11 @@ udp6_ctlinput(cmd, sa, d)
*/
/* check if we can safely examine src and dst ports */
if (m->m_pkthdr.len < off + sizeof(*uhp))
if (m->m_pkthdr.len < off + sizeof(*uhp)) {
if (cmd == PRC_MSGSIZE)
icmp6_mtudisc_update((struct ip6ctlparam *)d, 0);
return;
}
bzero(&uh, sizeof(uh));
m_copydata(m, off, sizeof(*uhp), (caddr_t)&uh);