bsd/netinet6/nd6_prproxy.c

286 	struct nd_prefix *pr;
296 		pr = up->ndprl_pr;
299 		NDPR_LOCK(pr);
300 		prproxy = (pr->ndpr_stateflags & NDPRF_PRPROXY);
301 		VERIFY(!prproxy || ((pr->ndpr_stateflags & NDPRF_ONLINK) &&
302 		    !(pr->ndpr_stateflags & NDPRF_IFSCOPE)));
304 		nd6_prproxy_sols_reap(pr);
305 		VERIFY(pr->ndpr_prproxy_sols_cnt == 0);
306 		VERIFY(RB_EMPTY(&pr->ndpr_prproxy_sols));
308 		if (enable && pr->ndpr_allmulti_cnt == 0) {
310 			pr->ndpr_allmulti_cnt++;
311 			if_allmulti(pr->ndpr_ifp, TRUE);
312 		} else if (!enable && pr->ndpr_allmulti_cnt > 0) {
314 			pr->ndpr_allmulti_cnt--;
315 			if_allmulti(pr->ndpr_ifp, FALSE);
318 		if ((rt = pr->ndpr_rt) != NULL) {
323 			NDPR_UNLOCK(pr);
325 			NDPR_UNLOCK(pr);
327 		NDPR_REMREF(pr);
341 		pr = down->ndprl_pr;
351 		NDPR_LOCK(pr);
352 		if (enable && pr->ndpr_allmulti_cnt == 0) {
353 			pr->ndpr_allmulti_cnt++;
354 			if_allmulti(pr->ndpr_ifp, TRUE);
355 		} else if (!enable && pr->ndpr_allmulti_cnt > 0) {
356 			pr->ndpr_allmulti_cnt--;
357 			if_allmulti(pr->ndpr_ifp, FALSE);
360 		if ((rt = pr->ndpr_rt) != NULL) {
365 			NDPR_UNLOCK(pr);
367 			NDPR_UNLOCK(pr);
369 		NDPR_REMREF(pr);
389 	struct nd_prefix *pr;
412 	for (pr = nd_prefix.lh_first; pr; pr = pr->ndpr_next) {
413 		NDPR_LOCK(pr);
414 		if (IN6_IS_ADDR_LINKLOCAL(&pr->ndpr_prefix.sin6_addr) ||
415 		    (!enable && !(pr->ndpr_stateflags & NDPRF_PRPROXY)) ||
416 		    (enable && (pr->ndpr_stateflags & NDPRF_PRPROXY)) ||
417 		    (pr->ndpr_stateflags & NDPRF_IFSCOPE) ||
418 		    pr->ndpr_ifp != ifp) {
419 			NDPR_UNLOCK(pr);
430 		if (enable && (pr->ndpr_stateflags & NDPRF_ONLINK) &&
432 			pr->ndpr_stateflags |= NDPRF_PRPROXY;
433 			NDPR_ADDREF_LOCKED(pr);
434 			NDPR_UNLOCK(pr);
436 			pr->ndpr_stateflags &= ~NDPRF_PRPROXY;
437 			NDPR_ADDREF_LOCKED(pr);
438 			NDPR_UNLOCK(pr);
440 			NDPR_UNLOCK(pr);
441 			pr = NULL;	/* don't go further */
444 		if (pr == NULL)
449 			NDPR_REMREF(pr);
453 		up->ndprl_pr = pr;	/* keep reference from above */
467 		pr = up->ndprl_pr;
469 		NDPR_LOCK(pr);
470 		bcopy(&pr->ndpr_prefix.sin6_addr, &pr_addr, sizeof (pr_addr));
471 		pr_len = pr->ndpr_plen;
472 		NDPR_UNLOCK(pr);
492 			NDPR_ADDREF(pr);
493 			down->ndprl_up = pr;
584 	struct nd_prefix *pr;
608 		for (pr = nd_prefix.lh_first; pr; pr = pr->ndpr_next) {
609 			NDPR_LOCK(pr);
610 			if (!(pr->ndpr_stateflags & NDPRF_ONLINK) ||
611 			    !(pr->ndpr_stateflags & NDPRF_PRPROXY) ||
612 			    pr->ndpr_plen != pr_len ||
613 			    !in6_are_prefix_equal(&pr->ndpr_prefix.sin6_addr,
615 				NDPR_UNLOCK(pr);
618 			NDPR_UNLOCK(pr);
622 		if ((pr_up = pr) == NULL) {
658 	for (pr = nd_prefix.lh_first; pr; pr = pr->ndpr_next) {
659 		NDPR_LOCK(pr);
660 		if (!(pr->ndpr_stateflags & NDPRF_ONLINK) ||
661 		    !(pr->ndpr_stateflags & NDPRF_IFSCOPE) ||
662 		    pr->ndpr_plen != pr_len ||
663 		    !in6_are_prefix_equal(&pr->ndpr_prefix.sin6_addr,
665 			NDPR_UNLOCK(pr);
668 		NDPR_UNLOCK(pr);
674 		NDPR_ADDREF(pr);
675 		down->ndprl_pr = pr;
701 	struct nd_prefix *pr;
715 	for (pr = nd_prefix.lh_first; pr; pr = pr->ndpr_next) {
716 		NDPR_LOCK(pr);
717 		if ((pr->ndpr_stateflags & NDPRF_ONLINK) &&
718 		    (pr->ndpr_stateflags & NDPRF_PRPROXY) &&
719 		    in6_are_prefix_equal(&pr->ndpr_prefix.sin6_addr,
721 			NDPR_UNLOCK(pr);
725 		NDPR_UNLOCK(pr);
747 	struct nd_prefix *pr, *fwd;
756 	for (pr = nd_prefix.lh_first; pr; pr = pr->ndpr_next) {
757 		NDPR_LOCK(pr);
758 		if (!(pr->ndpr_stateflags & NDPRF_ONLINK) ||
759 		    !(pr->ndpr_stateflags & NDPRF_PRPROXY) ||
760 		    !IN6_ARE_MASKED_ADDR_EQUAL(&pr->ndpr_prefix.sin6_addr,
761 		    taddr, &pr->ndpr_mask)) {
762 			NDPR_UNLOCK(pr);
766 		VERIFY(!(pr->ndpr_stateflags & NDPRF_IFSCOPE));
767 		bcopy(&pr->ndpr_prefix.sin6_addr, &pr_addr, sizeof (pr_addr));
768 		pr_len = pr->ndpr_plen;
769 		NDPR_UNLOCK(pr);
803 		pr = ndprl->ndprl_pr;
807 			NDPR_REMREF(pr);
812 		NDPR_LOCK(pr);
813 		if (pr->ndpr_stateflags & NDPRF_ONLINK) {
814 			NDPR_UNLOCK(pr);
823 			NDPR_UNLOCK(pr);
825 		NDPR_REMREF(pr);
848 	struct nd_prefix *pr, *fwd;
858 	for (pr = nd_prefix.lh_first; pr; pr = pr->ndpr_next) {
859 		NDPR_LOCK(pr);
860 		if (!(pr->ndpr_stateflags & NDPRF_ONLINK) ||
861 		    !(pr->ndpr_stateflags & NDPRF_PRPROXY) ||
862 		    !IN6_ARE_MASKED_ADDR_EQUAL(&pr->ndpr_prefix.sin6_addr,
863 		    taddr, &pr->ndpr_mask)) {
864 			NDPR_UNLOCK(pr);
868 		VERIFY(!(pr->ndpr_stateflags & NDPRF_IFSCOPE));
869 		bcopy(&pr->ndpr_prefix.sin6_addr, &pr_addr, sizeof (pr_addr));
870 		pr_len = pr->ndpr_plen;
878 		    !nd6_solsrc_enq(pr, ifp, saddr, taddr)) {
879 			NDPR_UNLOCK(pr);
883 			NDPR_UNLOCK(pr);
934 		pr = ndprl->ndprl_pr;
938 			NDPR_REMREF(pr);
943 		NDPR_LOCK(pr);
944 		if (pr->ndpr_stateflags & NDPRF_ONLINK) {
945 			NDPR_UNLOCK(pr);
956 			NDPR_UNLOCK(pr);
958 		NDPR_REMREF(pr);
979 	struct nd_prefix *pr;
988 	for (pr = nd_prefix.lh_first; pr; pr = pr->ndpr_next) {
989 		NDPR_LOCK(pr);
990 		if (!(pr->ndpr_stateflags & NDPRF_ONLINK) ||
991 		    !(pr->ndpr_stateflags & NDPRF_PRPROXY) ||
992 		    !IN6_ARE_MASKED_ADDR_EQUAL(&pr->ndpr_prefix.sin6_addr,
993 		    taddr, &pr->ndpr_mask)) {
994 			NDPR_UNLOCK(pr);
998 		VERIFY(!(pr->ndpr_stateflags & NDPRF_IFSCOPE));
1008 			if (!nd6_solsrc_deq(pr, taddr, &daddr, &fwd_ifp)) {
1009 				NDPR_UNLOCK(pr);
1013 			NDPR_UNLOCK(pr);
1029 			bcopy(&pr->ndpr_prefix.sin6_addr, &pr_addr,
1031 			pr_len = pr->ndpr_plen;
1032 			NDPR_UNLOCK(pr);
1071 		pr = ndprl->ndprl_pr;
1075 			VERIFY(pr == NULL);
1080 			VERIFY(pr != NULL);
1082 			NDPR_LOCK(pr);
1083 			send_na = ((pr->ndpr_stateflags & NDPRF_ONLINK) &&
1085 			NDPR_UNLOCK(pr);
1110 		if (pr != NULL)
1111 			NDPR_REMREF(pr);
1138 nd6_prproxy_sols_purge(struct nd_prefix *pr, u_int64_t max_stgt)
1143 	NDPR_LOCK_ASSERT_HELD(pr);
1147 	    &pr->ndpr_prproxy_sols, tmp) {
1148 		VERIFY(pr->ndpr_prproxy_sols_cnt > 0);
1151 			pr->ndpr_prproxy_sols_cnt--;
1153 			    &pr->ndpr_prproxy_sols, soltgt);
1158 	if (max_stgt == 0 || pr->ndpr_prproxy_sols_cnt < max_stgt) {
1159 		VERIFY(max_stgt != 0 || (pr->ndpr_prproxy_sols_cnt == 0 &&
1160 		    RB_EMPTY(&pr->ndpr_prproxy_sols)));
1166 	    &pr->ndpr_prproxy_sols, tmp) {
1167 		VERIFY(pr->ndpr_prproxy_sols_cnt > 0);
1168 		pr->ndpr_prproxy_sols_cnt--;
1169 		RB_REMOVE(prproxy_sols_tree, &pr->ndpr_prproxy_sols, soltgt);
1171 		if (pr->ndpr_prproxy_sols_cnt < max_stgt)
1181 nd6_prproxy_sols_reap(struct nd_prefix *pr)
1183 	nd6_prproxy_sols_purge(pr, 0);
1191 nd6_prproxy_sols_prune(struct nd_prefix *pr, u_int32_t max_stgt)
1193 	nd6_prproxy_sols_purge(pr, max_stgt);
1200 nd6_solsrc_enq(struct nd_prefix *pr, struct ifnet *ifp,
1208 	NDPR_LOCK_ASSERT_HELD(pr);
1209 	VERIFY(!(pr->ndpr_stateflags & NDPRF_IFSCOPE));
1210 	VERIFY((pr->ndpr_stateflags & (NDPRF_ONLINK|NDPRF_PRPROXY)) ==
1223 	soltgt = RB_FIND(prproxy_sols_tree, &pr->ndpr_prproxy_sols, &find);
1225 		if (max_stgt != 0 && pr->ndpr_prproxy_sols_cnt >= max_stgt) {
1226 			VERIFY(!RB_EMPTY(&pr->ndpr_prproxy_sols));
1227 			nd6_prproxy_sols_prune(pr, max_stgt);
1228 			VERIFY(pr->ndpr_prproxy_sols_cnt < max_stgt);
1241 		pr->ndpr_prproxy_sols_cnt++;
1242 		VERIFY(pr->ndpr_prproxy_sols_cnt != 0);
1243 		RB_INSERT(prproxy_sols_tree, &pr->ndpr_prproxy_sols, soltgt);
1265 nd6_solsrc_deq(struct nd_prefix *pr, struct in6_addr *taddr,
1271 	NDPR_LOCK_ASSERT_HELD(pr);
1272 	VERIFY(!(pr->ndpr_stateflags & NDPRF_IFSCOPE));
1273 	VERIFY((pr->ndpr_stateflags & (NDPRF_ONLINK|NDPRF_PRPROXY)) ==
1281 	soltgt = RB_FIND(prproxy_sols_tree, &pr->ndpr_prproxy_sols, &find);