Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

do not try to update rmx_mtu if rmx_mtu == 0 (obey ifmtu)

This commit is contained in:
itojun 2002-05-31 03:18:54 +00:00
parent 16e84a7542
commit 3449ca6d23
1 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
sys/netinet6/ip6_output.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: ip6_output.c,v 1.45 2002/05/29 07:53:41 itojun Exp $ */
/* $NetBSD: ip6_output.c,v 1.46 2002/05/31 03:18:54 itojun Exp $ */
/* $KAME: ip6_output.c,v 1.172 2001/03/25 09:55:56 itojun Exp $ */
/*
@ -66,7 +66,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ip6_output.c,v 1.45 2002/05/29 07:53:41 itojun Exp $");
__KERNEL_RCSID(0, "$NetBSD: ip6_output.c,v 1.46 2002/05/31 03:18:54 itojun Exp $");
#include "opt_inet.h"
#include "opt_ipsec.h"
@ -1220,7 +1220,9 @@ ip6_getpmtu(ro_pmtu, ro, ifp, dst, mtup)
ifp = ro_pmtu->ro_rt->rt_ifp;
ifmtu = IN6_LINKMTU(ifp);
mtu = ro_pmtu->ro_rt->rt_rmx.rmx_mtu;
if (mtu > ifmtu || mtu == 0) {
if (mtu == 0)
mtu = ifmtu;
else if (mtu > ifmtu) {
/*
* The MTU on the route is larger than the MTU on
* the interface! This shouldn't happen, unless the
@ -1233,10 +1235,8 @@ ip6_getpmtu(ro_pmtu, ro, ifp, dst, mtup)
* this case happens with path MTU discovery timeouts.
*/
mtu = ifmtu;
if (!(ro_pmtu->ro_rt->rt_rmx.rmx_locks & RTV_MTU)) {
/* XXX */
if (!(ro_pmtu->ro_rt->rt_rmx.rmx_locks & RTV_MTU))
ro_pmtu->ro_rt->rt_rmx.rmx_mtu = mtu;
}
}
} else if (ifp) {
mtu = IN6_LINKMTU(ifp);