If we receive an empty route message, log it and ignore it. Happens

occasionally on FreeBSD.

from Melissa Jenkins

OK claudio@, florian@, benno@

diff --git a/usr.sbin/bgpd/kroute.c b/usr.sbin/bgpd/kroute.c
index b18a0da..89ee84a 100644 (file)
--- a/usr.sbin/bgpd/kroute.c
+++ b/usr.sbin/bgpd/kroute.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: kroute.c,v 1.205 2015/09/16 20:25:41 stsp Exp $ */
+/*     $OpenBSD: kroute.c,v 1.206 2015/10/22 11:13:16 phessler Exp $ */
 
 /*
  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -3119,8 +3119,10 @@ dispatch_rtmsg_addr(struct rt_msghdr *rtm, struct sockaddr *rti_info[RTAX_MAX],
        prefixlen = 0;
        bzero(&prefix, sizeof(prefix));
 
-       if ((sa = rti_info[RTAX_DST]) == NULL)
-               return (-1);
+       if ((sa = rti_info[RTAX_DST]) == NULL) {
+               log_warnx("empty route message");
+               return (0);
+       }
 
        if (rtm->rtm_flags & RTF_STATIC)
                flags |= F_STATIC;