Author: glebius
Date: Wed Oct 24 18:33:44 2012
New Revision: 242013
URL: http://svn.freebsd.org/changeset/base/242013
Log:
Fix fallout from r240071. If destination interface lookup fails,
we should broadcast a packet, not try to deliver it to NULL.
Reported by: rpaulo
Modified:
head/sys/net/if_bridge.c
Modified: head/sys/net/if_bridge.c
==============================================================================
--- head/sys/net/if_bridge.c Wed Oct 24 18:32:37 2012 (r242012)
+++ head/sys/net/if_bridge.c Wed Oct 24 18:33:44 2012 (r242013)
@@ -1988,20 +1988,19 @@ static int
bridge_transmit(struct ifnet *ifp, struct mbuf *m)
{
struct bridge_softc *sc;
+ struct ether_header *eh;
+ struct ifnet *dst_if;
int error = 0;
sc = ifp->if_softc;
ETHER_BPF_MTAP(ifp, m);
+ eh = mtod(m, struct ether_header *);
BRIDGE_LOCK(sc);
- if ((m->m_flags & (M_BCAST|M_MCAST)) == 0) {
- struct ether_header *eh;
- struct ifnet *dst_if;
-
- eh = mtod(m, struct ether_header *);
- dst_if = bridge_rtlookup(sc, eh->ether_dhost, 1);
+ if (((m->m_flags & (M_BCAST|M_MCAST)) == 0) &&
+ (dst_if = bridge_rtlookup(sc, eh->ether_dhost, 1)) != NULL) {
BRIDGE_UNLOCK(sc);
error = bridge_enqueue(sc, dst_if, m);
} else
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