Author: kp
Date: Mon Dec 21 20:29:55 2015
New Revision: 292566
URL: https://svnweb.freebsd.org/changeset/base/292566
Log:
MFC r292219:
inet6: Do not assume every interface has ip6 enabled.
Certain interfaces (e.g. pfsync0) do not have ip6 addresses (in other words,
ifp->if_afdata[AF_INET6] is NULL). Ensure we don't panic when the MTU is
updated.
pfsync interfaces will never have ip6 support, because it's explicitly
disabled
in in6_domifattach().
PR: 205194
Modified:
stable/10/sys/netinet6/nd6.c
Modified: stable/10/sys/netinet6/nd6.c
==============================================================================
--- stable/10/sys/netinet6/nd6.c Mon Dec 21 20:17:24 2015
(r292565)
+++ stable/10/sys/netinet6/nd6.c Mon Dec 21 20:29:55 2015
(r292566)
@@ -227,6 +227,8 @@ nd6_ifdetach(struct nd_ifinfo *nd)
void
nd6_setmtu(struct ifnet *ifp)
{
+ if (ifp->if_afdata[AF_INET6] == NULL)
+ return;
nd6_setmtu0(ifp, ND_IFINFO(ifp));
}
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