bsd/netinet6/ip6_output.c

282 	struct ifnet *ifp = NULL, *origifp = NULL;
356 		ifp = dn_tag->dn_ifp;
357 		if (ifp)
358 			ifnet_reference(ifp);
918 	if (ifp != NULL) {
919 		ifnet_release(ifp);
920 		ifp = NULL;
938 	 * in6_selectroute() might return an ifp with its reference held
942 	    &dst_sa, opt, im6o, ro, &ifp, &rt, 0, &ip6oa)) != 0) {
951 		if (ifp != NULL)
952 			in6_ifstat_inc(ifp, ifs6_out_discard);
953 		/* ifp (if non-NULL) will be released at the end */
965 	 * then rt (for unicast) and ifp must be non-NULL valid values.
969 		in6_ifstat_inc(ifp, ifs6_out_request);
991 		if (ifp != NULL)
992 			ifnet_reference(ifp);	/* for origifp */
995 		origifp = ifp;
1050 		in6_ifstat_inc(ifp, ifs6_out_mcast);
1055 		if ((ifp->if_flags & IFF_MULTICAST) == 0) {
1057 			in6_ifstat_inc(ifp, ifs6_out_discard);
1062 		IN6_LOOKUP_MULTI(&ip6->ip6_dst, ifp, in6m);
1075 			ip6_mloopback(ifp, m, dst);
1101 				if (ip6_mforward(ip6, ifp, m) != 0) {
1120 		if (ip6->ip6_hlim == 0 || (ifp->if_flags & IFF_LOOPBACK) ||
1132 		ifnet_reference(ifp);	/* for caller */
1135 		*ifpp = ifp;
1139 	if ((error = ip6_getpmtu(ro_pmtu, ro, ifp, &finaldst, &mtu,
1182 		if (ip6_fw_chk_ptr(&ip6, ifp, &port, &m)) {
1213 		m->m_pkthdr.rcvif = ifp;
1235 		args.fwa_oif = ifp;
1248 		error = pf_af_hook(ifp, NULL, &m, AF_INET6, FALSE, &args);
1250 		error = pf_af_hook(ifp, NULL, &m, AF_INET6, FALSE, NULL);
1303 	ifmtu = IN6_LINKMTU(ifp);
1331 	tso = (ifp->if_hwassist & IFNET_TSO_IPV6) &&
1334 	    (tlen <= mtu || tso || (ifp->if_hwassist & CSUM_FRAGMENT_IPV6)))) {
1347 			    ~IF_HWASSIST_CSUM_FLAGS(ifp->if_hwassist);
1355 		error = nd6_output(ifp, origifp, m, dst, ro->ro_rt, adv);
1365 		in6_ifstat_inc(ifp, ifs6_out_fragfail);
1370 		in6_ifstat_inc(ifp, ifs6_out_fragfail);
1390 			in6_ifstat_inc(ifp, ifs6_out_fragfail);
1475 			in6_ifstat_inc(ifp, ifs6_out_fragcreat);
1478 		in6_ifstat_inc(ifp, ifs6_out_fragok);
1503 			error = nd6_output(ifp, origifp, m, dst, ro->ro_rt,
1535 	if (ifp != NULL)
1536 		ifnet_release(ifp);
1750     struct ifnet *ifp, struct in6_addr *dst, u_int32_t *mtup,
1775 			    ifp != NULL ? ifp->if_index : IFSCOPE_NONE);
1785 		ifmtu = IN6_LINKMTU(ifp);
1820 		if (ifp) {
1823 			mtu = IN6_LINKMTU(ifp);
3168 		struct ifnet *ifp = NULL;
3203 			ifp = ifindex2ifnet[pktinfo->ipi6_ifindex];
3204 			if (ifp == NULL) {
3513 	struct ifnet *ifp,
3564 		copym->m_pkthdr.rcvif = ifp;
3570 	(void)if_simloop(ifp, copym, dst->sin6_family, NULL);