829 	struct ifaddr *ifa;  in if_attach_internal()  local
882 		ifasize = sizeof(*ifa) + 2 * socksize;  in if_attach_internal()
883 		ifa = ifa_alloc(ifasize, M_WAITOK);  in if_attach_internal()
884 		sdl = (struct sockaddr_dl *)(ifa + 1);  in if_attach_internal()
891 		ifp->if_addr = ifa;  in if_attach_internal()
892 		ifa->ifa_ifp = ifp;  in if_attach_internal()
893 		ifa->ifa_addr = (struct sockaddr *)sdl;  in if_attach_internal()
895 		ifa->ifa_netmask = (struct sockaddr *)sdl;  in if_attach_internal()
899 		CK_STAILQ_INSERT_HEAD(&ifp->if_addrhead, ifa, ifa_link);  in if_attach_internal()
940 		for (ifa = ifp->if_addr; ifa != NULL;  in if_attach_internal()
941 		    ifa = CK_STAILQ_NEXT(ifa, ifa_link)) {  in if_attach_internal()
942 			if (ifa->ifa_addr->sa_family == AF_LINK) {  in if_attach_internal()
943 				sdl = (struct sockaddr_dl *)ifa->ifa_addr;  in if_attach_internal()
1013 	struct ifaddr *ifa;  in if_purgeaddrs()  local
1029 		CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {  in if_purgeaddrs()
1030 			if (ifa->ifa_addr->sa_family != AF_LINK)  in if_purgeaddrs()
1035 		if (ifa == NULL)  in if_purgeaddrs()
1039 		if (ifa->ifa_addr->sa_family == AF_INET) {  in if_purgeaddrs()
1043 			ifr.ifr_addr = *ifa->ifa_addr;  in if_purgeaddrs()
1050 		if (ifa->ifa_addr->sa_family == AF_INET6) {  in if_purgeaddrs()
1051 			in6_purgeifaddr((struct in6_ifaddr *)ifa);  in if_purgeaddrs()
1057 		CK_STAILQ_REMOVE(&ifp->if_addrhead, ifa, ifaddr, ifa_link);  in if_purgeaddrs()
1059 		ifa_free(ifa);  in if_purgeaddrs()
1118 	struct ifaddr *ifa;  in if_detach_internal()  local
1223 			ifa = CK_STAILQ_FIRST(&ifp->if_addrhead);  in if_detach_internal()
1224 			CK_STAILQ_REMOVE(&ifp->if_addrhead, ifa, ifaddr, ifa_link);  in if_detach_internal()
1226 			ifa_free(ifa);  in if_detach_internal()
1721 	struct ifaddr *ifa;  in ifa_alloc()  local
1726 	ifa = malloc(size, M_IFADDR, M_ZERO | flags);  in ifa_alloc()
1727 	if (ifa == NULL)  in ifa_alloc()
1730 	if ((ifa->ifa_opackets = counter_u64_alloc(flags)) == NULL)  in ifa_alloc()
1732 	if ((ifa->ifa_ipackets = counter_u64_alloc(flags)) == NULL)  in ifa_alloc()
1734 	if ((ifa->ifa_obytes = counter_u64_alloc(flags)) == NULL)  in ifa_alloc()
1736 	if ((ifa->ifa_ibytes = counter_u64_alloc(flags)) == NULL)  in ifa_alloc()
1739 	refcount_init(&ifa->ifa_refcnt, 1);  in ifa_alloc()
1741 	return (ifa);  in ifa_alloc()
1745 	counter_u64_free(ifa->ifa_opackets);  in ifa_alloc()
1746 	counter_u64_free(ifa->ifa_ipackets);  in ifa_alloc()
1747 	counter_u64_free(ifa->ifa_obytes);  in ifa_alloc()
1748 	counter_u64_free(ifa->ifa_ibytes);  in ifa_alloc()
1749 	free(ifa, M_IFADDR);  in ifa_alloc()
1755 ifa_ref(struct ifaddr *ifa)  in ifa_ref()  argument
1759 	old = refcount_acquire(&ifa->ifa_refcnt);  in ifa_ref()
1760 	KASSERT(old > 0, ("%s: ifa %p has 0 refs", __func__, ifa));  in ifa_ref()
1764 ifa_try_ref(struct ifaddr *ifa)  in ifa_try_ref()  argument
1768 	return (refcount_acquire_if_not_zero(&ifa->ifa_refcnt));  in ifa_try_ref()
1774 	struct ifaddr *ifa;  in ifa_destroy()  local
1776 	ifa = __containerof(ctx, struct ifaddr, ifa_epoch_ctx);  in ifa_destroy()
1777 	counter_u64_free(ifa->ifa_opackets);  in ifa_destroy()
1778 	counter_u64_free(ifa->ifa_ipackets);  in ifa_destroy()
1779 	counter_u64_free(ifa->ifa_obytes);  in ifa_destroy()
1780 	counter_u64_free(ifa->ifa_ibytes);  in ifa_destroy()
1781 	free(ifa, M_IFADDR);  in ifa_destroy()
1785 ifa_free(struct ifaddr *ifa)  in ifa_free()  argument
1788 	if (refcount_release(&ifa->ifa_refcnt))  in ifa_free()
1789 		NET_EPOCH_CALL(ifa_destroy, &ifa->ifa_epoch_ctx);  in ifa_free()
1816 	struct ifaddr *ifa;  in ifa_ifwithaddr()  local
1821 		CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {  in ifa_ifwithaddr()
1822 			if (ifa->ifa_addr->sa_family != addr->sa_family)  in ifa_ifwithaddr()
1824 			if (sa_equal(addr, ifa->ifa_addr)) {  in ifa_ifwithaddr()
1829 			    ifa->ifa_broadaddr &&  in ifa_ifwithaddr()
1830 			    ifa->ifa_broadaddr->sa_len != 0 &&  in ifa_ifwithaddr()
1831 			    sa_equal(ifa->ifa_broadaddr, addr)) {  in ifa_ifwithaddr()
1836 	ifa = NULL;  in ifa_ifwithaddr()
1838 	return (ifa);  in ifa_ifwithaddr()
1861 	struct ifaddr *ifa;  in ifa_ifwithbroadaddr()  local
1867 		CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {  in ifa_ifwithbroadaddr()
1868 			if (ifa->ifa_addr->sa_family != addr->sa_family)  in ifa_ifwithbroadaddr()
1871 			    ifa->ifa_broadaddr &&  in ifa_ifwithbroadaddr()
1872 			    ifa->ifa_broadaddr->sa_len != 0 &&  in ifa_ifwithbroadaddr()
1873 			    sa_equal(ifa->ifa_broadaddr, addr)) {  in ifa_ifwithbroadaddr()
1878 	ifa = NULL;  in ifa_ifwithbroadaddr()
1880 	return (ifa);  in ifa_ifwithbroadaddr()
1891 	struct ifaddr *ifa;  in ifa_ifwithdstaddr()  local
1899 		CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {  in ifa_ifwithdstaddr()
1900 			if (ifa->ifa_addr->sa_family != addr->sa_family)  in ifa_ifwithdstaddr()
1902 			if (ifa->ifa_dstaddr != NULL &&  in ifa_ifwithdstaddr()
1903 			    sa_equal(addr, ifa->ifa_dstaddr)) {  in ifa_ifwithdstaddr()
1908 	ifa = NULL;  in ifa_ifwithdstaddr()
1910 	return (ifa);  in ifa_ifwithdstaddr()
1921 	struct ifaddr *ifa;  in ifa_ifwithnet()  local
1944 		CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {  in ifa_ifwithnet()
1947 			if (ifa->ifa_addr->sa_family != af)  in ifa_ifwithnet()
1959 				if (ifa->ifa_dstaddr != NULL &&  in ifa_ifwithnet()
1960 				    sa_equal(addr, ifa->ifa_dstaddr)) {  in ifa_ifwithnet()
1971 				if (ifa->ifa_netmask == 0)  in ifa_ifwithnet()
1974 				cp2 = ifa->ifa_addr->sa_data;  in ifa_ifwithnet()
1975 				cp3 = ifa->ifa_netmask->sa_data;  in ifa_ifwithnet()
1976 				cplim = ifa->ifa_netmask->sa_len  in ifa_ifwithnet()
1977 					+ (char *)ifa->ifa_netmask;  in ifa_ifwithnet()
1990 				    ifa_preferred(ifa_maybe, ifa) ||  in ifa_ifwithnet()
1991 				    rn_refines((caddr_t)ifa->ifa_netmask,  in ifa_ifwithnet()
1993 					ifa_maybe = ifa;  in ifa_ifwithnet()
1998 	ifa = ifa_maybe;  in ifa_ifwithnet()
2001 	return (ifa);  in ifa_ifwithnet()
2011 	struct ifaddr *ifa;  in ifaof_ifpforaddr()  local
2021 	CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {  in ifaof_ifpforaddr()
2022 		if (ifa->ifa_addr->sa_family != af)  in ifaof_ifpforaddr()
2025 			ifa_maybe = ifa;  in ifaof_ifpforaddr()
2026 		if (ifa->ifa_netmask == 0) {  in ifaof_ifpforaddr()
2027 			if (sa_equal(addr, ifa->ifa_addr) ||  in ifaof_ifpforaddr()
2028 			    (ifa->ifa_dstaddr &&  in ifaof_ifpforaddr()
2029 			    sa_equal(addr, ifa->ifa_dstaddr)))  in ifaof_ifpforaddr()
2034 			if (ifa->ifa_dstaddr && sa_equal(addr, ifa->ifa_dstaddr))  in ifaof_ifpforaddr()
2038 			cp2 = ifa->ifa_addr->sa_data;  in ifaof_ifpforaddr()
2039 			cp3 = ifa->ifa_netmask->sa_data;  in ifaof_ifpforaddr()
2040 			cplim = ifa->ifa_netmask->sa_len + (char *)ifa->ifa_netmask;  in ifaof_ifpforaddr()
2048 	ifa = ifa_maybe;  in ifaof_ifpforaddr()
2050 	return (ifa);  in ifaof_ifpforaddr()
3127 	struct ifaddr *ifa;  in if_rename()  local
3155 	ifa = ifp->if_addr;  in if_rename()
3156 	sdl = (struct sockaddr_dl *)ifa->ifa_addr;  in if_rename()
3170 	sdl = (struct sockaddr_dl *)ifa->ifa_netmask;  in if_rename()
3293 	struct ifaddr *ifa;  in ifconf()  local
3334 		CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {  in ifconf()
3335 			struct sockaddr *sa = ifa->ifa_addr;  in ifconf()
3878 	struct ifaddr *ifa;  in if_setlladdr()  local
3881 	ifa = ifp->if_addr;  in if_setlladdr()
3882 	if (ifa == NULL)  in if_setlladdr()
3885 	sdl = (struct sockaddr_dl *)ifa->ifa_addr;  in if_setlladdr()
4495 	struct ifaddr *ifa;  in if_lladdr_count()  local
4500 	CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link)  in if_lladdr_count()
4501 		if (ifa->ifa_addr->sa_family == AF_LINK)  in if_lladdr_count()
4632 	struct ifaddr *ifa;  in if_foreach_lladdr()  local
4639 	CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {  in if_foreach_lladdr()
4640 		if (ifa->ifa_addr->sa_family != AF_LINK)  in if_foreach_lladdr()
4642 		count += (*cb)(cb_arg, (struct sockaddr_dl *)ifa->ifa_addr,  in if_foreach_lladdr()
4700 	struct ifaddr *ifa;  in if_foreach_addr_type()  local
4707 	CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {  in if_foreach_addr_type()
4708 		if (ifa->ifa_addr->sa_family != type)  in if_foreach_addr_type()
4710 		count += (*cb)(cb_arg, ifa, count);  in if_foreach_addr_type()
4720 	struct ifaddr *ifa;  in ifa_iter_start()  local
4725 	ifa = CK_STAILQ_FIRST(&ifp->if_addrhead);  in ifa_iter_start()
4726 	if (ifa != NULL)  in ifa_iter_start()
4727 		iter->context[0] = CK_STAILQ_NEXT(ifa, ifa_link);  in ifa_iter_start()
4730 	return (ifa);  in ifa_iter_start()
4736 	struct ifaddr *ifa = iter->context[0];  in ifa_iter_next()  local
4738 	if (ifa != NULL)  in ifa_iter_next()
4739 		iter->context[0] = CK_STAILQ_NEXT(ifa, ifa_link);  in ifa_iter_next()
4740 	return (ifa);  in ifa_iter_next()