sys/netinet6/nd6_rtr.c

321 		struct nd_prefixctl pr;
357 			bzero(&pr, sizeof(pr));
358 			pr.ndpr_prefix.sin6_family = AF_INET6;
359 			pr.ndpr_prefix.sin6_len = sizeof(pr.ndpr_prefix);
360 			pr.ndpr_prefix.sin6_addr = pi->nd_opt_pi_prefix;
361 			pr.ndpr_ifp = (struct ifnet *)m->m_pkthdr.rcvif;
363 			pr.ndpr_raf_onlink = (pi->nd_opt_pi_flags_reserved &
365 			pr.ndpr_raf_auto = (pi->nd_opt_pi_flags_reserved &
367 			pr.ndpr_plen = pi->nd_opt_pi_prefix_len;
368 			pr.ndpr_vltime = ntohl(pi->nd_opt_pi_valid_time);
369 			pr.ndpr_pltime = ntohl(pi->nd_opt_pi_preferred_time);
370 			(void)prelist_update(&pr, dr, m, mcast);
670 	struct nd_prefix *pr;
689 	LIST_FOREACH(pr, &V_nd_prefix, ndpr_entry) {
691 		if ((pfxrtr = pfxrtr_lookup(pr, dr)) != NULL)
921 pfxrtr_lookup(struct nd_prefix *pr, struct nd_defrouter *dr)
925 	LIST_FOREACH(search, &pr->ndpr_advrtrs, pfr_entry) {
934 pfxrtr_add(struct nd_prefix *pr, struct nd_defrouter *dr)
944 	LIST_INSERT_HEAD(&pr->ndpr_advrtrs, new, pfr_entry);
976 nd6_prelist_add(struct nd_prefixctl *pr, struct nd_defrouter *dr,
987 	new->ndpr_ifp = pr->ndpr_ifp;
988 	new->ndpr_prefix = pr->ndpr_prefix;
989 	new->ndpr_plen = pr->ndpr_plen;
990 	new->ndpr_vltime = pr->ndpr_vltime;
991 	new->ndpr_pltime = pr->ndpr_pltime;
992 	new->ndpr_flags = pr->ndpr_flags;
1017 			    ip6_sprintf(ip6buf, &pr->ndpr_prefix.sin6_addr),
1018 			    pr->ndpr_plen, if_name(pr->ndpr_ifp), e));
1031 prelist_remove(struct nd_prefix *pr)
1038 	pr->ndpr_vltime = 0;
1039 	pr->ndpr_pltime = 0;
1043 	 * of pr->ndpr_raf_onlink and pr->ndpr_raf_auto not to confuse users
1047 	if ((pr->ndpr_stateflags & NDPRF_ONLINK) != 0 &&
1048 	    (e = nd6_prefix_offlink(pr)) != 0) {
1051 		    ip6_sprintf(ip6buf, &pr->ndpr_prefix.sin6_addr),
1052 		    pr->ndpr_plen, if_name(pr->ndpr_ifp), e));
1056 	if (pr->ndpr_refcnt > 0)
1060 	LIST_REMOVE(pr, ndpr_entry);
1063 	LIST_FOREACH_SAFE(pfr, &pr->ndpr_advrtrs, pfr_entry, next) {
1066 	free(pr, M_IP6NDP);
1082 	struct nd_prefix *pr;
1100 	if ((pr = nd6_prefix_lookup(new)) != NULL) {
1102 		 * nd6_prefix_lookup() ensures that pr and new have the same
1112 			pr->ndpr_raf_onlink = 1;
1114 			pr->ndpr_raf_auto = 1;
1116 			pr->ndpr_vltime = new->ndpr_vltime;
1117 			pr->ndpr_pltime = new->ndpr_pltime;
1118 			(void)in6_init_prefix_ltimes(pr); /* XXX error case? */
1119 			pr->ndpr_lastupdate = time_uptime;
1123 		    (pr->ndpr_stateflags & NDPRF_ONLINK) == 0) {
1126 			if ((e = nd6_prefix_onlink(pr)) != 0) {
1132 					    &pr->ndpr_prefix.sin6_addr),
1133 				    pr->ndpr_plen, if_name(pr->ndpr_ifp), e));
1138 		if (dr && pfxrtr_lookup(pr, dr) == NULL)
1139 			pfxrtr_add(pr, dr);
1146 		error = nd6_prelist_add(new, dr, &pr);
1162 		if (pr->ndpr_raf_onlink == 0) {
1163 			pr->ndpr_vltime = 0;
1164 			pr->ndpr_pltime = 0;
1165 			in6_init_prefix_ltimes(pr);
1171 	 * Note that pr must be non NULL at this point.
1226 		 * one.  (pr is never NULL here)
1228 		if (ifa6->ia6_ndpr != pr)
1281 		in6_init_address_ltimes(pr, &lt6_tmp);
1347 		if (ifidlen + pr->ndpr_plen != 128) {
1351 			    pr->ndpr_plen, if_name(ifp)));
1357 			 * note that we should use pr (not new) for reference.
1359 			pr->ndpr_refcnt++;
1360 			ia6->ia6_ndpr = pr;
1407 find_pfxlist_reachable_router(struct nd_prefix *pr)
1413 	LIST_FOREACH(pfxrtr, &pr->ndpr_advrtrs, pfr_entry) {
1443 	struct nd_prefix *pr;
1452 	LIST_FOREACH(pr, &V_nd_prefix, ndpr_entry) {
1453 		if (pr->ndpr_raf_onlink && find_pfxlist_reachable_router(pr))
1461 	if (pr == NULL) {
1475 	if (pr != NULL || (!TAILQ_EMPTY(&V_nd_defrouter) && pfxrtr == NULL)) {
1485 		LIST_FOREACH(pr, &V_nd_prefix, ndpr_entry) {
1487 			if (IN6_IS_ADDR_LINKLOCAL(&pr->ndpr_prefix.sin6_addr))
1494 			if (pr->ndpr_raf_onlink == 0)
1497 			if (pr->ndpr_raf_auto == 0)
1500 			if ((pr->ndpr_stateflags & NDPRF_DETACHED) == 0 &&
1501 			    find_pfxlist_reachable_router(pr) == NULL)
1502 				pr->ndpr_stateflags |= NDPRF_DETACHED;
1503 			if ((pr->ndpr_stateflags & NDPRF_DETACHED) != 0 &&
1504 			    find_pfxlist_reachable_router(pr) != 0)
1505 				pr->ndpr_stateflags &= ~NDPRF_DETACHED;
1509 		LIST_FOREACH(pr, &V_nd_prefix, ndpr_entry) {
1510 			if (IN6_IS_ADDR_LINKLOCAL(&pr->ndpr_prefix.sin6_addr))
1513 			if (pr->ndpr_raf_onlink == 0)
1516 			if (pr->ndpr_raf_auto == 0)
1519 			if ((pr->ndpr_stateflags & NDPRF_DETACHED) != 0)
1520 				pr->ndpr_stateflags &= ~NDPRF_DETACHED;
1532 	LIST_FOREACH(pr, &V_nd_prefix, ndpr_entry) {
1536 		if (IN6_IS_ADDR_LINKLOCAL(&pr->ndpr_prefix.sin6_addr))
1539 		if (pr->ndpr_raf_onlink == 0)
1542 		if (pr->ndpr_raf_auto == 0)
1545 		if ((pr->ndpr_stateflags & NDPRF_DETACHED) != 0 &&
1546 		    (pr->ndpr_stateflags & NDPRF_ONLINK) != 0) {
1547 			if ((e = nd6_prefix_offlink(pr)) != 0) {
1552 					    &pr->ndpr_prefix.sin6_addr),
1553 					    pr->ndpr_plen, e));
1556 		if ((pr->ndpr_stateflags & NDPRF_DETACHED) == 0 &&
1557 		    (pr->ndpr_stateflags & NDPRF_ONLINK) == 0 &&
1558 		    pr->ndpr_raf_onlink) {
1559 			if ((e = nd6_prefix_onlink(pr)) != 0) {
1564 					    &pr->ndpr_prefix.sin6_addr),
1565 					    pr->ndpr_plen, e));
1631 nd6_prefix_onlink_rtrequest(struct nd_prefix *pr, struct ifaddr *ifa)
1646 	mask6.sin6_addr = pr->ndpr_mask;
1654 		    (struct sockaddr *)&pr->ndpr_prefix, ifa->ifa_addr,
1658 			    "error(%d) but rt is NULL, pr=%p, ifa=%p", __func__,
1659 			    error, pr, ifa));
1676 			pr->ndpr_stateflags |= NDPRF_ONLINK;
1687 			    ip6_sprintf(ip6buf, &pr->ndpr_prefix.sin6_addr),
1688 			    pr->ndpr_plen, if_name(pr->ndpr_ifp),
1709 nd6_prefix_onlink(struct nd_prefix *pr)
1712 	struct ifnet *ifp = pr->ndpr_ifp;
1718 	if ((pr->ndpr_stateflags & NDPRF_ONLINK) != 0) {
1721 		    ip6_sprintf(ip6buf, &pr->ndpr_prefix.sin6_addr),
1722 		    pr->ndpr_plen));
1734 		if (opr == pr)
1740 		if (opr->ndpr_plen == pr->ndpr_plen &&
1741 		    in6_are_prefix_equal(&pr->ndpr_prefix.sin6_addr,
1742 		    &opr->ndpr_prefix.sin6_addr, pr->ndpr_plen))
1774 		    ip6_sprintf(ip6buf, &pr->ndpr_prefix.sin6_addr),
1775 		    pr->ndpr_plen, if_name(ifp)));
1779 	error = nd6_prefix_onlink_rtrequest(pr, ifa);
1788 nd6_prefix_offlink(struct nd_prefix *pr)
1791 	struct ifnet *ifp = pr->ndpr_ifp;
1799 	if ((pr->ndpr_stateflags & NDPRF_ONLINK) == 0) {
1802 		    ip6_sprintf(ip6buf, &pr->ndpr_prefix.sin6_addr),
1803 		    pr->ndpr_plen));
1810 	bcopy(&pr->ndpr_prefix.sin6_addr, &sa6.sin6_addr,
1815 	bcopy(&pr->ndpr_mask, &mask6.sin6_addr, sizeof(struct in6_addr));
1837 		pr->ndpr_stateflags &= ~NDPRF_ONLINK;
1847 			if (opr == pr)
1860 			if (opr->ndpr_plen == pr->ndpr_plen &&
1861 			    in6_are_prefix_equal(&pr->ndpr_prefix.sin6_addr,
1862 			    &opr->ndpr_prefix.sin6_addr, pr->ndpr_plen)) {
1883 		    ip6_sprintf(ip6buf, &sa6.sin6_addr), pr->ndpr_plen,
1895 in6_ifadd(struct nd_prefixctl *pr, int mcast)
1897 	struct ifnet *ifp = pr->ndpr_ifp;
1903 	int prefixlen = pr->ndpr_plen;
1956 	ifra.ifra_addr.sin6_addr = pr->ndpr_prefix.sin6_addr;
1980 	ifra.ifra_lifetime.ia6t_vltime = pr->ndpr_vltime;
1981 	ifra.ifra_lifetime.ia6t_pltime = pr->ndpr_pltime;