sys/netinet/ip_carp.c

159  * its ifp->if_carp pointer. Each softc represents one unique virtual
168  * through its ifp->if_addrhead queue to find all interface addresses
286 #define	IFNET_FOREACH_IFA(ifp, ifa)					\
287 	IF_ADDR_LOCK_ASSERT(ifp);					\
288 	TAILQ_FOREACH((ifa), &(ifp)->if_addrhead, ifa_link)		\
298 #define	IFNET_FOREACH_CARP(ifp, sc)					\
299 	KASSERT(mtx_owned(&ifp->if_carp->cif_mtx) ||			\
301 	TAILQ_FOREACH((sc), &(ifp)->if_carp->cif_vrs, sc_list)
598 	struct ifnet *ifp = m->m_pkthdr.rcvif;
605 	IF_ADDR_RLOCK(ifp);
606 	IFNET_FOREACH_IFA(ifp, ifa)
612 	IF_ADDR_RUNLOCK(ifp);
623 		CARP_DEBUG("%s: invalid version %d\n", ifp->if_xname,
637 		    sc->sc_vhid, ifp->if_xname);
1075 carp_iamatch6(struct ifnet *ifp, struct in6_addr *taddr)
1080 	IF_ADDR_RLOCK(ifp);
1081 	TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
1092 	IF_ADDR_RUNLOCK(ifp);
1098 carp_macmatch6(struct ifnet *ifp, struct mbuf *m, const struct in6_addr *taddr)
1102 	IF_ADDR_RLOCK(ifp);
1103 	IFNET_FOREACH_IFA(ifp, ifa)
1109 			IF_ADDR_RUNLOCK(ifp);
1122 	IF_ADDR_RUNLOCK(ifp);
1129 carp_forus(struct ifnet *ifp, u_char *dhost)
1137 	CIF_LOCK(ifp->if_carp);
1138 	IFNET_FOREACH_CARP(ifp, sc) {
1145 			CIF_UNLOCK(ifp->if_carp);
1149 	CIF_UNLOCK(ifp->if_carp);
1270 	struct ifnet *ifp = cif->cif_ifp;
1291 		if ((error = in_joingroup(ifp, &addr, NULL,
1297 		imo->imo_multicast_ifp = ifp;
1319 		im6o->im6o_multicast_ifp = ifp;
1325 		if ((error = in6_setscope(&in6, ifp, NULL)) != 0) {
1330 		if ((error = in6_mc_join(ifp, &in6, NULL, &in6m, 0)) != 0) {
1344 		if ((error = in6_setscope(&in6, ifp, NULL)) != 0) {
1350 		if ((error = in6_mc_join(ifp, &in6, NULL, &in6m, 0)) != 0) {
1407 carp_output(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *sa)
1435 	switch (ifp->if_type) {
1475 		    ifp->if_xname, ifp->if_type);
1483 carp_alloc(struct ifnet *ifp)
1490 	if ((cif = ifp->if_carp) == NULL)
1491 		cif = carp_alloc_if(ifp);
1502 	sc->sc_carpdev = ifp;
1541 	struct ifnet *ifp = sc->sc_carpdev;
1542 	struct carp_if *cif = ifp->if_carp;
1572 carp_alloc_if(struct ifnet *ifp)
1579 	if ((error = ifpromisc(ifp, 1)) != 0)
1581 		    __func__, ifp->if_xname, error);
1586 	cif->cif_ifp = ifp;
1589 	IF_ADDR_WLOCK(ifp);
1590 	ifp->if_carp = cif;
1591 	if_ref(ifp);
1592 	IF_ADDR_WUNLOCK(ifp);
1600 	struct ifnet *ifp = cif->cif_ifp;
1606 	IF_ADDR_WLOCK(ifp);
1607 	ifp->if_carp = NULL;
1608 	IF_ADDR_WUNLOCK(ifp);
1613 		ifpromisc(ifp, 0);
1614 	if_rele(ifp);
1639 	struct ifnet *ifp;
1646 	ifp = ifunit_ref(ifr->ifr_name);
1647 	if (ifp == NULL)
1650 	switch (ifp->if_type) {
1662 	if ((ifp->if_flags & IFF_MULTICAST) == 0) {
1678 		if (ifp->if_carp) {
1679 			IFNET_FOREACH_CARP(ifp, sc)
1684 			sc = carp_alloc(ifp);
1745 		if (ifp->if_carp == NULL) {
1752 			IFNET_FOREACH_CARP(ifp, sc)
1766 			IFNET_FOREACH_CARP(ifp, sc)
1770 				CIF_UNLOCK(ifp->if_carp);
1776 			IFNET_FOREACH_CARP(ifp, sc) {
1783 					CIF_UNLOCK(ifp->if_carp);
1799 	if_rele(ifp);
1817 	struct ifnet *ifp = ifa->ifa_ifp;
1818 	struct carp_if *cif = ifp->if_carp;
1837 	if (ifp->if_carp == NULL) {
1842 	IFNET_FOREACH_CARP(ifp, sc)
1893 	struct ifnet *ifp = ifa->ifa_ifp;
1894 	struct carp_if *cif = ifp->if_carp;
1971 carp_linkstate(struct ifnet *ifp)
1975 	CIF_LOCK(ifp->if_carp);
1976 	IFNET_FOREACH_CARP(ifp, sc) {
1981 	CIF_UNLOCK(ifp->if_carp);