bsd/netinet/ip_output.c

269 	struct ifnet *ifp = NULL;
339 		ifp = dn_tag->dn_ifp;
598 		ifp = ia->ia_ifp;
600 		isbroadcast = in_broadcast(dst->sin_addr, ifp);
602 	    imo != NULL && (ifp = imo->imo_multicast_ifp) != NULL) {
612 		IFP_TO_IA(ifp, ia);
760 		ifp = ro->ro_rt->rt_ifp;
771 			isbroadcast = in_broadcast(dst->sin_addr, ifp);
800 				ifp = imo->imo_multicast_ifp;
815 			if ((ifp->if_flags & IFF_MULTICAST) == 0) {
830 				if (ia1->ia_ifp == ifp) {
845 		IN_LOOKUP_MULTI(&pkt_dst, ifp, inm);
859 					ipf_pktopts.ippo_mcast_ifnet = ifp;
904 			ip_mloopback(ifp, m, dst, hlen);
929 				if (ip_mforward(ip, ifp, m, imo) != 0) {
949 		if (ip->ip_ttl == 0 || ifp->if_flags & IFF_LOOPBACK) {
980 		if ((ifp->if_flags & IFF_BROADCAST) == 0) {
989 		if ((u_short)ip->ip_len > ifp->if_mtu) {
1008 		args.fwa_oif = ifp;
1014 		rc = pf_af_hook(ifp, mppn, &m, AF_INET, FALSE, &args);
1016 		rc = pf_af_hook(ifp, mppn, &m, AF_INET, FALSE, NULL);
1185 		struct ip *, ip, struct ifnet *, ifp,
1272 		ifp = ro->ro_rt->rt_ifp;
1347 		args.fwa_oif = ifp;
1382 			 * pipe number, m, ifp, ro, dst because these are
1386 			 * XXX note: if the ifp or ro entry are deleted
1537 					printf("ip_output: no loopback ifp for forwarding!!!\n");
1565 			ifp = ro_fwd->ro_rt->rt_ifp;
1575 				isbroadcast = in_broadcast(dst->sin_addr, ifp);
1611 	if ((ifp->if_flags & IFF_LOOPBACK) == 0 &&
1628 	tso =  (ifp->if_hwassist & IFNET_TSO_IPV4) && (m->m_pkthdr.csum_flags & CSUM_TSO_IPV4);
1631 		& ~IF_HWASSIST_CSUM_FLAGS(ifp->if_hwassist);
1633 	if ((ifp->if_hwassist & CSUM_TCP_SUM16) != 0) {
1640 			&& (ip->ip_len > 50) && (ip->ip_len <= ifp->if_mtu)) {
1665 		    IF_HWASSIST_CSUM_FLAGS(ifp->if_hwassist);
1674 	if ((u_short)ip->ip_len <= ifp->if_mtu || tso ||
1675 	    ifp->if_hwassist & CSUM_FRAGMENT) {
1706 			error = dlil_output(ifp, PF_INET, m, ro->ro_rt,
1723 				error = dlil_output(ifp, PF_INET, packetlist,
1754 			    && (ro->ro_rt->rt_rmx.rmx_mtu > ifp->if_mtu)) {
1755 				ro->ro_rt->rt_rmx.rmx_mtu = ifp->if_mtu;
1766 	error = ip_fragment(m, ifp, ifp->if_mtu, sw_csum);
1795 			error = dlil_output(ifp, PF_INET, m, ro->ro_rt,
1829 ip_fragment(struct mbuf *m, struct ifnet *ifp, unsigned long mtu, int sw_csum)
1854 	    (ifp->if_hwassist & CSUM_IP_FRAGS) == 0) {
2422 				ifnet_t	ifp;
2431 				if (ifnet_find_by_name(ifname, &ifp) != 0) {
2437 				ifscope = ifp->if_index;
2443 				ifnet_release(ifp);
2989 ip_mloopback(ifp, m, dst, hlen)
2990 	struct ifnet *ifp;
3041          * This is done this way because we have to embed the ifp of
3044          * embedded ifp and ignore all csum_flags if if_hwassist is 0.
3048 		if (!sw_csum && IF_HWASSIST_CSUM_FLAGS(ifp->if_hwassist)) {
3075 	 * Stuff the 'real' ifp into the pkthdr, to be used in matching
3076 	 *  in ip_input(); we need the loopback ifp/dl_tag passed as args
3081 		copym->m_pkthdr.rcvif = ifp;