xnu-1504.7.4.tar.gz

[apple/xnu.git] / bsd / netinet6 / raw_ip6.c

diff --git a/bsd/netinet6/raw_ip6.c b/bsd/netinet6/raw_ip6.c
index d4a32b9274a8d05acd585ec4e7556339de127741..79eda381ee86c3b4f622333253f117a22a4ccacf 100644 (file)
--- a/bsd/netinet6/raw_ip6.c
+++ b/bsd/netinet6/raw_ip6.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008 Apple Inc. All rights reserved.
+ * Copyright (c) 2009 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -487,8 +487,28 @@ rip6_output(
                in6p->in6p_route.ro_rt = NULL;
        }
 
+#if PKT_PRIORITY
+       if (soisbackground(so))
+               m_prio_background(m);
+#endif /* PKT_PRIORITY */
+
        error = ip6_output(m, optp, &in6p->in6p_route, 0,
                           in6p->in6p_moptions, &oifp, 0);
+
+#if IFNET_ROUTE_REFCNT
+       /*
+        * Always discard the cached route for unconnected socket
+        * or if it is a multicast route.
+        */
+       if (in6p->in6p_route.ro_rt != NULL &&
+           ((in6p->in6p_route.ro_rt->rt_flags & RTF_MULTICAST) ||
+           in6p->in6p_socket == NULL ||
+           in6p->in6p_socket->so_state != SS_ISCONNECTED)) {
+               rtfree(in6p->in6p_route.ro_rt);
+               in6p->in6p_route.ro_rt = NULL;
+       }
+#endif /* IFNET_ROUTE_REFCNT */
+
        if (so->so_proto->pr_protocol == IPPROTO_ICMPV6) {
                if (oifp)
                        icmp6_ifoutstat_inc(oifp, type, code);