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From: "Andrey V. Elsukov" <ae@FreeBSD.org>
Date: Mon, 31 Mar 2014 14:27:23 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r263969 - head/sys/netinet6
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Author: ae
Date: Mon Mar 31 14:27:22 2014
New Revision: 263969
URL: http://svnweb.freebsd.org/changeset/base/263969

Log:
  Don't generate an ICMPv6 error message if packet was consumed by filter.
  
  MFC after:	1 week
  Sponsored by:	Yandex LLC

Modified:
  head/sys/netinet6/ip6_forward.c

Modified: head/sys/netinet6/ip6_forward.c
==============================================================================
--- head/sys/netinet6/ip6_forward.c	Mon Mar 31 14:12:27 2014	(r263968)
+++ head/sys/netinet6/ip6_forward.c	Mon Mar 31 14:27:22 2014	(r263969)
@@ -564,10 +564,8 @@ skip_routing:
 	odst = ip6->ip6_dst;
 	/* Run through list of hooks for output packets. */
 	error = pfil_run_hooks(&V_inet6_pfil_hook, &m, rt->rt_ifp, PFIL_OUT, NULL);
-	if (error != 0)
-		goto senderr;
-	if (m == NULL)
-		goto freecopy;
+	if (error != 0 || m == NULL)
+		goto freecopy;		/* consumed by filter */
 	ip6 = mtod(m, struct ip6_hdr *);
 
 	/* See if destination IP address was changed by packet filter. */