svn commit: r332810 - stable/11/sys/netinet6

[Andrey V. Elsukov]

Author: ae
Date: Fri Apr 20 09:48:42 2018
New Revision: 332810
URL: https://svnweb.freebsd.org/changeset/base/332810

Log:
  MFC r332475:
    Add check that mbuf had not multicast layer2 address.
    Such packets should be handled by ip6_mforward().

Modified:
  stable/11/sys/netinet6/ip6_fastfwd.c
Directory Properties:
  stable/11/   (props changed)

Modified: stable/11/sys/netinet6/ip6_fastfwd.c
==============================================================================
--- stable/11/sys/netinet6/ip6_fastfwd.c	Fri Apr 20 03:29:06 2018	(r332809)
+++ stable/11/sys/netinet6/ip6_fastfwd.c	Fri Apr 20 09:48:42 2018	(r332810)
@@ -97,7 +97,8 @@ ip6_tryforward(struct mbuf *m)
 	 * Fallback conditions to ip6_input for slow path processing.
 	 */
 	ip6 = mtod(m, struct ip6_hdr *);
-	if (ip6->ip6_nxt == IPPROTO_HOPOPTS ||
+	if ((m->m_flags & (M_BCAST | M_MCAST)) != 0 ||
+	    ip6->ip6_nxt == IPPROTO_HOPOPTS ||
 	    IN6_IS_ADDR_MULTICAST(&ip6->ip6_dst) ||
 	    IN6_IS_ADDR_LINKLOCAL(&ip6->ip6_dst) ||
 	    IN6_IS_ADDR_LINKLOCAL(&ip6->ip6_src) ||