bsd/netinet6/ip6_forward.c

127 	struct rtentry *rt;
155 	    (rt = ip6forward_rt->ro_rt) != NULL && (rt->rt_flags & RTF_PROXY)) {
157 		if ((rt = ip6forward_rt->ro_rt) != NULL)
158 			ifscope = rt->rt_ifp->if_index;
171 	if (ifscope != IFSCOPE_NONE && (rt = ip6forward_rt->ro_rt) != NULL) {
172 		RT_LOCK(rt);
173 		if (rt->rt_ifp->if_index != ifscope) {
174 			RT_UNLOCK(rt);
176 			rt = NULL;
178 			RT_UNLOCK(rt);
210 		/* XXX in6_ifstat_inc(rt->rt_ifp, ifs6_in_discard) */
226 		/* XXX in6_ifstat_inc(rt->rt_ifp, ifs6_in_discard) */
395 	if ((rt = ip6forward_rt->ro_rt) != NULL) {
396 		RT_LOCK(rt);
398 		RT_ADDREF_LOCKED(rt);
401 	VERIFY(rt == NULL || rt == ip6forward_rt->ro_rt);
407 			if (rt != NULL) {
409 				RT_REMREF_LOCKED(rt);
410 				RT_UNLOCK(rt);
417 			if ((rt = ip6forward_rt->ro_rt) != NULL) {
418 				RT_LOCK(rt);
420 				RT_ADDREF_LOCKED(rt);
424 		if (rt == NULL) {
433 		RT_LOCK_ASSERT_HELD(rt);
436 		if (rt != NULL) {
438 			RT_REMREF_LOCKED(rt);
439 			RT_UNLOCK(rt);
450 		if ((rt = ip6forward_rt->ro_rt) == NULL) {
459 		RT_LOCK(rt);
461 		RT_ADDREF_LOCKED(rt);
475 	if (in6_setscope(&src_in6, rt->rt_ifp, &outzone)) {
492 		in6_ifstat_inc(rt->rt_ifp, ifs6_in_discard);
502 			    if_name(m->m_pkthdr.rcvif), if_name(rt->rt_ifp));
505 		RT_REMREF_LOCKED(rt);
506 		RT_UNLOCK(rt);
524 	    in6_setscope(&dst_in6, rt->rt_ifp, &outzone) != 0 ||
532 	if (m->m_pkthdr.len > rt->rt_ifp->if_mtu) {
533 		in6_ifstat_inc(rt->rt_ifp, ifs6_in_toobig);
542 			mtu = rt->rt_ifp->if_mtu;
549 			 * encapsulated packet as "rt->rt_ifp".
568 			RT_REMREF_LOCKED(rt);
569 			RT_UNLOCK(rt);
573 			RT_REMREF_LOCKED(rt);
574 			RT_UNLOCK(rt);
580 	if (rt->rt_flags & RTF_GATEWAY)
581 		dst = (struct sockaddr_in6 *)(void *)rt->rt_gateway;
593 	    ip6_sendredirects && rt->rt_ifp == m->m_pkthdr.rcvif && !srcrt &&
594 	    (rt->rt_flags & (RTF_DYNAMIC|RTF_MODIFIED)) == 0) {
595 		if ((rt->rt_ifp->if_flags & IFF_POINTOPOINT) != 0) {
606 			RT_REMREF_LOCKED(rt);	/* Release extra ref */
607 			RT_UNLOCK(rt);
622 		ifp = rt->rt_ifp;
624 		RT_UNLOCK(rt);
633 		/* We still have the extra ref on rt */
634 		RT_LOCK(rt);
646 	if ((rt->rt_ifp->if_flags & IFF_LOOPBACK) != 0) {
659 		if ((rt->rt_flags & (RTF_BLACKHOLE|RTF_REJECT)) == 0)
667 				if_name(rt->rt_ifp));
682 		origifp = rt->rt_ifp;
691 	ifp = rt->rt_ifp;
693 	RT_UNLOCK(rt);
701 		RT_REMREF(rt);
726 	error = nd6_output(ifp, origifp, m, dst, rt, NULL);
754 		RT_REMREF(rt);
761 			icmp6_redirect_output(mcopy, rt);
763 			RT_REMREF(rt);
788 	RT_REMREF(rt);
794 	RT_REMREF(rt);