bsd/netinet6/ip6_input.c

266 ip6_proto_input(protocol_family_t protocol, mbuf_t packet)
269 	ip6_input(packet);
475 	 * Check if the packet we received is valid after interface filter
488 	 * should the inner packet be considered authentic?
520 	 * No need to proccess packet twice if we've already seen it.
558 	 * Drop the packet if IPv6 operation is disabled on the interface.
620 		/* If ipfw says divert, we have to just drop packet */
646 		 * In this case, the packet should come from the loopback
717 	/* Invoke inbound packet filter */
727 				panic("%s: unexpected packet %p\n",
833 		/* address is not ready, so discard the packet. */
834 		nd6log((LOG_INFO, "%s: packet to an unready address %s->%s\n",
857 	 * Accept the packet if the forwarding interface to the destination
860 	 * Note that this approach causes to accept a packet if there is a
861 	 * route to the loopback interface for the destination of the packet.
863 	 * a special daemon which wants to intercept the packet.
866 	 * of an outgoing packet.  If the outgoing interface of the packet
867 	 * is a loopback one, the kernel would consider the packet to be
904 		/* address is not ready, so discard the packet. */
905 		nd6log((LOG_INFO, "%s: packet to an unready address %s->%s\n",
915 	 * Now there is no reason to process the packet if it's not our own
989 		 * If we are acting as a router and the packet contains a
992 		 * case we should pass the packet to the multicast routing
1015 	 * Drop packet if shorter than we expect.
1056 		 * The packet is returned (relatively) intact; if
1057 		 * ip6_mforward() returns a non-zero value, the packet
1071 			 * if so, claim the packet and let icmp6_input()
1082 		 * The unicast forwarding function might return the packet
1083 		 * if we are proxying prefix(es), and if the packet is an
1084 		 * ICMPv6 packet that has failed the zone checks, but is
1086 		 * way of RTF_PROXY test.)  If so, claim the packet as ours
1087 		 * and let icmp6_input() handle the rest.  The packet's hop
1145 		 * protection against faulty packet - there should be
1446 			 * *plenp will be non-zero and the packet will be
1664 		 * received packet, and if so, store the options as ancillary