255 static int parse_ipv6hdr(struct sk_buff *skb, struct sw_flow_key *key)  in parse_ipv6hdr()  argument
273 	key->ip.proto = NEXTHDR_NONE;  in parse_ipv6hdr()
274 	key->ip.tos = ipv6_get_dsfield(nh);  in parse_ipv6hdr()
275 	key->ip.ttl = nh->hop_limit;  in parse_ipv6hdr()
276 	key->ipv6.label = *(__be32 *)nh & htonl(IPV6_FLOWINFO_FLOWLABEL);  in parse_ipv6hdr()
277 	key->ipv6.addr.src = nh->saddr;  in parse_ipv6hdr()
278 	key->ipv6.addr.dst = nh->daddr;  in parse_ipv6hdr()
284 			key->ip.frag = OVS_FRAG_TYPE_LATER;  in parse_ipv6hdr()
286 			key->ip.frag = OVS_FRAG_TYPE_FIRST;  in parse_ipv6hdr()
288 		key->ip.frag = OVS_FRAG_TYPE_NONE;  in parse_ipv6hdr()
300 	key->ip.proto = nexthdr;  in parse_ipv6hdr()
352 static void clear_vlan(struct sw_flow_key *key)  in clear_vlan()  argument
354 	key->eth.vlan.tci = 0;  in clear_vlan()
355 	key->eth.vlan.tpid = 0;  in clear_vlan()
356 	key->eth.cvlan.tci = 0;  in clear_vlan()
357 	key->eth.cvlan.tpid = 0;  in clear_vlan()
360 static int parse_vlan(struct sk_buff *skb, struct sw_flow_key *key)  in parse_vlan()  argument
365 		key->eth.vlan.tci = htons(skb->vlan_tci);  in parse_vlan()
366 		key->eth.vlan.tpid = skb->vlan_proto;  in parse_vlan()
369 		res = parse_vlan_tag(skb, &key->eth.vlan, true);  in parse_vlan()
375 	res = parse_vlan_tag(skb, &key->eth.cvlan, false);  in parse_vlan()
420 static int parse_icmpv6(struct sk_buff *skb, struct sw_flow_key *key,  in parse_icmpv6()  argument
428 	key->tp.src = htons(icmp->icmp6_type);  in parse_icmpv6()
429 	key->tp.dst = htons(icmp->icmp6_code);  in parse_icmpv6()
430 	memset(&key->ipv6.nd, 0, sizeof(key->ipv6.nd));  in parse_icmpv6()
449 		key->ipv6.nd.target = nd->target;  in parse_icmpv6()
467 				if (unlikely(!is_zero_ether_addr(key->ipv6.nd.sll)))  in parse_icmpv6()
469 				ether_addr_copy(key->ipv6.nd.sll,  in parse_icmpv6()
473 				if (unlikely(!is_zero_ether_addr(key->ipv6.nd.tll)))  in parse_icmpv6()
475 				ether_addr_copy(key->ipv6.nd.tll,  in parse_icmpv6()
487 	memset(&key->ipv6.nd.target, 0, sizeof(key->ipv6.nd.target));  in parse_icmpv6()
488 	memset(key->ipv6.nd.sll, 0, sizeof(key->ipv6.nd.sll));  in parse_icmpv6()
489 	memset(key->ipv6.nd.tll, 0, sizeof(key->ipv6.nd.tll));  in parse_icmpv6()
494 static int parse_nsh(struct sk_buff *skb, struct sw_flow_key *key)  in parse_nsh()  argument
517 	key->nsh.base.flags = nsh_get_flags(nh);  in parse_nsh()
518 	key->nsh.base.ttl = nsh_get_ttl(nh);  in parse_nsh()
519 	key->nsh.base.mdtype = nh->mdtype;  in parse_nsh()
520 	key->nsh.base.np = nh->np;  in parse_nsh()
521 	key->nsh.base.path_hdr = nh->path_hdr;  in parse_nsh()
522 	switch (key->nsh.base.mdtype) {  in parse_nsh()
526 		memcpy(key->nsh.context, nh->md1.context,  in parse_nsh()
530 		memset(key->nsh.context, 0,  in parse_nsh()
565 static int key_extract(struct sk_buff *skb, struct sw_flow_key *key)  in key_extract()  argument
571 	key->tp.flags = 0;  in key_extract()
576 	clear_vlan(key);  in key_extract()
577 	if (ovs_key_mac_proto(key) == MAC_PROTO_NONE) {  in key_extract()
582 		key->eth.type = skb->protocol;  in key_extract()
585 		ether_addr_copy(key->eth.src, eth->h_source);  in key_extract()
586 		ether_addr_copy(key->eth.dst, eth->h_dest);  in key_extract()
593 		if (unlikely(parse_vlan(skb, key)))  in key_extract()
596 		key->eth.type = parse_ethertype(skb);  in key_extract()
597 		if (unlikely(key->eth.type == htons(0)))  in key_extract()
604 		if (key->eth.cvlan.tci & htons(VLAN_TAG_PRESENT))  in key_extract()
605 			skb->protocol = key->eth.cvlan.tpid;  in key_extract()
607 			skb->protocol = key->eth.type;  in key_extract()
615 	if (key->eth.type == htons(ETH_P_IP)) {  in key_extract()
621 			memset(&key->ip, 0, sizeof(key->ip));  in key_extract()
622 			memset(&key->ipv4, 0, sizeof(key->ipv4));  in key_extract()
631 		key->ipv4.addr.src = nh->saddr;  in key_extract()
632 		key->ipv4.addr.dst = nh->daddr;  in key_extract()
634 		key->ip.proto = nh->protocol;  in key_extract()
635 		key->ip.tos = nh->tos;  in key_extract()
636 		key->ip.ttl = nh->ttl;  in key_extract()
640 			key->ip.frag = OVS_FRAG_TYPE_LATER;  in key_extract()
645 			key->ip.frag = OVS_FRAG_TYPE_FIRST;  in key_extract()
647 			key->ip.frag = OVS_FRAG_TYPE_NONE;  in key_extract()
650 		if (key->ip.proto == IPPROTO_TCP) {  in key_extract()
653 				key->tp.src = tcp->source;  in key_extract()
654 				key->tp.dst = tcp->dest;  in key_extract()
655 				key->tp.flags = TCP_FLAGS_BE16(tcp);  in key_extract()
657 				memset(&key->tp, 0, sizeof(key->tp));  in key_extract()
660 		} else if (key->ip.proto == IPPROTO_UDP) {  in key_extract()
663 				key->tp.src = udp->source;  in key_extract()
664 				key->tp.dst = udp->dest;  in key_extract()
666 				memset(&key->tp, 0, sizeof(key->tp));  in key_extract()
668 		} else if (key->ip.proto == IPPROTO_SCTP) {  in key_extract()
671 				key->tp.src = sctp->source;  in key_extract()
672 				key->tp.dst = sctp->dest;  in key_extract()
674 				memset(&key->tp, 0, sizeof(key->tp));  in key_extract()
676 		} else if (key->ip.proto == IPPROTO_ICMP) {  in key_extract()
682 				key->tp.src = htons(icmp->type);  in key_extract()
683 				key->tp.dst = htons(icmp->code);  in key_extract()
685 				memset(&key->tp, 0, sizeof(key->tp));  in key_extract()
689 	} else if (key->eth.type == htons(ETH_P_ARP) ||  in key_extract()
690 		   key->eth.type == htons(ETH_P_RARP)) {  in key_extract()
704 				key->ip.proto = ntohs(arp->ar_op);  in key_extract()
706 				key->ip.proto = 0;  in key_extract()
708 			memcpy(&key->ipv4.addr.src, arp->ar_sip, sizeof(key->ipv4.addr.src));  in key_extract()
709 			memcpy(&key->ipv4.addr.dst, arp->ar_tip, sizeof(key->ipv4.addr.dst));  in key_extract()
710 			ether_addr_copy(key->ipv4.arp.sha, arp->ar_sha);  in key_extract()
711 			ether_addr_copy(key->ipv4.arp.tha, arp->ar_tha);  in key_extract()
713 			memset(&key->ip, 0, sizeof(key->ip));  in key_extract()
714 			memset(&key->ipv4, 0, sizeof(key->ipv4));  in key_extract()
716 	} else if (eth_p_mpls(key->eth.type)) {  in key_extract()
730 				memcpy(&key->mpls.top_lse, &lse, MPLS_HLEN);  in key_extract()
738 	} else if (key->eth.type == htons(ETH_P_IPV6)) {  in key_extract()
741 		nh_len = parse_ipv6hdr(skb, key);  in key_extract()
745 				memset(&key->ip, 0, sizeof(key->ip));  in key_extract()
746 				memset(&key->ipv6.addr, 0, sizeof(key->ipv6.addr));  in key_extract()
758 		if (key->ip.frag == OVS_FRAG_TYPE_LATER)  in key_extract()
761 			key->ip.frag = OVS_FRAG_TYPE_FIRST;  in key_extract()
764 		if (key->ip.proto == NEXTHDR_TCP) {  in key_extract()
767 				key->tp.src = tcp->source;  in key_extract()
768 				key->tp.dst = tcp->dest;  in key_extract()
769 				key->tp.flags = TCP_FLAGS_BE16(tcp);  in key_extract()
771 				memset(&key->tp, 0, sizeof(key->tp));  in key_extract()
773 		} else if (key->ip.proto == NEXTHDR_UDP) {  in key_extract()
776 				key->tp.src = udp->source;  in key_extract()
777 				key->tp.dst = udp->dest;  in key_extract()
779 				memset(&key->tp, 0, sizeof(key->tp));  in key_extract()
781 		} else if (key->ip.proto == NEXTHDR_SCTP) {  in key_extract()
784 				key->tp.src = sctp->source;  in key_extract()
785 				key->tp.dst = sctp->dest;  in key_extract()
787 				memset(&key->tp, 0, sizeof(key->tp));  in key_extract()
789 		} else if (key->ip.proto == NEXTHDR_ICMP) {  in key_extract()
791 				error = parse_icmpv6(skb, key, nh_len);  in key_extract()
795 				memset(&key->tp, 0, sizeof(key->tp));  in key_extract()
798 	} else if (key->eth.type == htons(ETH_P_NSH)) {  in key_extract()
799 		error = parse_nsh(skb, key);  in key_extract()
806 int ovs_flow_key_update(struct sk_buff *skb, struct sw_flow_key *key)  in ovs_flow_key_update()  argument
810 	res = key_extract(skb, key);  in ovs_flow_key_update()
812 		key->mac_proto &= ~SW_FLOW_KEY_INVALID;  in ovs_flow_key_update()
832 			 struct sk_buff *skb, struct sw_flow_key *key)  in ovs_flow_key_extract()  argument
838 		key->tun_proto = ip_tunnel_info_af(tun_info);  in ovs_flow_key_extract()
839 		memcpy(&key->tun_key, &tun_info->key, sizeof(key->tun_key));  in ovs_flow_key_extract()
844 					> sizeof(key->tun_opts));  in ovs_flow_key_extract()
846 			ip_tunnel_info_opts_get(TUN_METADATA_OPTS(key, tun_info->options_len),  in ovs_flow_key_extract()
848 			key->tun_opts_len = tun_info->options_len;  in ovs_flow_key_extract()
850 			key->tun_opts_len = 0;  in ovs_flow_key_extract()
853 		key->tun_proto = 0;  in ovs_flow_key_extract()
854 		key->tun_opts_len = 0;  in ovs_flow_key_extract()
855 		memset(&key->tun_key, 0, sizeof(key->tun_key));  in ovs_flow_key_extract()
858 	key->phy.priority = skb->priority;  in ovs_flow_key_extract()
859 	key->phy.in_port = OVS_CB(skb)->input_vport->port_no;  in ovs_flow_key_extract()
860 	key->phy.skb_mark = skb->mark;  in ovs_flow_key_extract()
861 	key->ovs_flow_hash = 0;  in ovs_flow_key_extract()
865 	key->mac_proto = res;  in ovs_flow_key_extract()
866 	key->recirc_id = 0;  in ovs_flow_key_extract()
868 	err = key_extract(skb, key);  in ovs_flow_key_extract()
870 		ovs_ct_fill_key(skb, key);   /* Must be after key_extract(). */  in ovs_flow_key_extract()
876 				   struct sw_flow_key *key, bool log)  in ovs_flow_key_extract_userspace()  argument
887 	err = ovs_nla_get_flow_metadata(net, a, attrs, key, log);  in ovs_flow_key_extract_userspace()
900 	skb->protocol = key->eth.type;  in ovs_flow_key_extract_userspace()
901 	err = key_extract(skb, key);  in ovs_flow_key_extract_userspace()
910 	    key->eth.type != htons(ETH_P_IP))  in ovs_flow_key_extract_userspace()
913 	    (key->eth.type != htons(ETH_P_IPV6) ||  in ovs_flow_key_extract_userspace()
914 	     sw_flow_key_is_nd(key)))  in ovs_flow_key_extract_userspace()