50 				struct sk_buff *skb)  in ip6_rcv_finish_core()  argument
52 	void (*edemux)(struct sk_buff *skb);  in ip6_rcv_finish_core()
54 	if (net->ipv4.sysctl_ip_early_demux && !skb_dst(skb) && skb->sk == NULL) {  in ip6_rcv_finish_core()
57 		ipprot = rcu_dereference(inet6_protos[ipv6_hdr(skb)->nexthdr]);  in ip6_rcv_finish_core()
60 					udp_v6_early_demux, skb);  in ip6_rcv_finish_core()
62 	if (!skb_valid_dst(skb))  in ip6_rcv_finish_core()
63 		ip6_route_input(skb);  in ip6_rcv_finish_core()
66 int ip6_rcv_finish(struct net *net, struct sock *sk, struct sk_buff *skb)  in ip6_rcv_finish()  argument
71 	skb = l3mdev_ip6_rcv(skb);  in ip6_rcv_finish()
72 	if (!skb)  in ip6_rcv_finish()
74 	ip6_rcv_finish_core(net, sk, skb);  in ip6_rcv_finish()
76 	return dst_input(skb);  in ip6_rcv_finish()
81 	struct sk_buff *skb, *next;  in ip6_sublist_rcv_finish()  local
83 	list_for_each_entry_safe(skb, next, head, list) {  in ip6_sublist_rcv_finish()
84 		skb_list_del_init(skb);  in ip6_sublist_rcv_finish()
85 		dst_input(skb);  in ip6_sublist_rcv_finish()
93 	struct sk_buff *skb, *next;  in ip6_list_rcv_finish()  local
97 	list_for_each_entry_safe(skb, next, head, list) {  in ip6_list_rcv_finish()
100 		skb_list_del_init(skb);  in ip6_list_rcv_finish()
104 		skb = l3mdev_ip6_rcv(skb);  in ip6_list_rcv_finish()
105 		if (!skb)  in ip6_list_rcv_finish()
107 		ip6_rcv_finish_core(net, sk, skb);  in ip6_list_rcv_finish()
108 		dst = skb_dst(skb);  in ip6_list_rcv_finish()
117 		list_add_tail(&skb->list, &sublist);  in ip6_list_rcv_finish()
123 static struct sk_buff *ip6_rcv_core(struct sk_buff *skb, struct net_device *dev,  in ip6_rcv_core()  argument
130 	if (skb->pkt_type == PACKET_OTHERHOST) {  in ip6_rcv_core()
131 		kfree_skb(skb);  in ip6_rcv_core()
137 	idev = __in6_dev_get(skb->dev);  in ip6_rcv_core()
139 	__IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_IN, skb->len);  in ip6_rcv_core()
141 	if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL ||  in ip6_rcv_core()
147 	memset(IP6CB(skb), 0, sizeof(struct inet6_skb_parm));  in ip6_rcv_core()
160 	IP6CB(skb)->iif = skb_valid_dst(skb) ? ip6_dst_idev(skb_dst(skb))->dev->ifindex : dev->ifindex;  in ip6_rcv_core()
162 	if (unlikely(!pskb_may_pull(skb, sizeof(*hdr))))  in ip6_rcv_core()
165 	hdr = ipv6_hdr(skb);  in ip6_rcv_core()
173 			max_t(unsigned short, 1, skb_shinfo(skb)->gso_segs));  in ip6_rcv_core()
193 	if (!(skb->pkt_type == PACKET_LOOPBACK ||  in ip6_rcv_core()
204 	    (skb->pkt_type == PACKET_BROADCAST ||  in ip6_rcv_core()
205 	     skb->pkt_type == PACKET_MULTICAST) &&  in ip6_rcv_core()
236 	skb->transport_header = skb->network_header + sizeof(*hdr);  in ip6_rcv_core()
237 	IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr);  in ip6_rcv_core()
243 		if (pkt_len + sizeof(struct ipv6hdr) > skb->len) {  in ip6_rcv_core()
248 		if (pskb_trim_rcsum(skb, pkt_len + sizeof(struct ipv6hdr))) {  in ip6_rcv_core()
252 		hdr = ipv6_hdr(skb);  in ip6_rcv_core()
256 		if (ipv6_parse_hopopts(skb) < 0) {  in ip6_rcv_core()
266 	skb_orphan(skb);  in ip6_rcv_core()
268 	return skb;  in ip6_rcv_core()
273 	kfree_skb(skb);  in ip6_rcv_core()
277 int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device…  in ipv6_rcv()  argument
279 	struct net *net = dev_net(skb->dev);  in ipv6_rcv()
281 	skb = ip6_rcv_core(skb, dev, net);  in ipv6_rcv()
282 	if (skb == NULL)  in ipv6_rcv()
285 		       net, NULL, skb, dev, NULL,  in ipv6_rcv()
303 	struct sk_buff *skb, *next;  in ipv6_list_rcv()  local
307 	list_for_each_entry_safe(skb, next, head, list) {  in ipv6_list_rcv()
308 		struct net_device *dev = skb->dev;  in ipv6_list_rcv()
311 		skb_list_del_init(skb);  in ipv6_list_rcv()
312 		skb = ip6_rcv_core(skb, dev, net);  in ipv6_list_rcv()
313 		if (skb == NULL)  in ipv6_list_rcv()
325 		list_add_tail(&skb->list, &sublist);  in ipv6_list_rcv()
337 void ip6_protocol_deliver_rcu(struct net *net, struct sk_buff *skb, int nexthdr,  in ip6_protocol_deliver_rcu()  argument
350 	idev = ip6_dst_idev(skb_dst(skb));  in ip6_protocol_deliver_rcu()
351 	nhoff = IP6CB(skb)->nhoff;  in ip6_protocol_deliver_rcu()
353 		if (!pskb_pull(skb, skb_transport_offset(skb)))  in ip6_protocol_deliver_rcu()
355 		nexthdr = skb_network_header(skb)[nhoff];  in ip6_protocol_deliver_rcu()
359 	raw = raw6_local_deliver(skb, nexthdr);  in ip6_protocol_deliver_rcu()
375 			int sdif = inet6_sdif(skb);  in ip6_protocol_deliver_rcu()
384 			nf_reset_ct(skb);  in ip6_protocol_deliver_rcu()
386 			skb_postpull_rcsum(skb, skb_network_header(skb),  in ip6_protocol_deliver_rcu()
387 					   skb_network_header_len(skb));  in ip6_protocol_deliver_rcu()
388 			hdr = ipv6_hdr(skb);  in ip6_protocol_deliver_rcu()
396 				dev = skb->dev;  in ip6_protocol_deliver_rcu()
402 			    !ipv6_is_mld(skb, nexthdr, skb_network_header_len(skb)))  in ip6_protocol_deliver_rcu()
406 		    !xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb))  in ip6_protocol_deliver_rcu()
410 				      skb);  in ip6_protocol_deliver_rcu()
428 			if (xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) {  in ip6_protocol_deliver_rcu()
431 				icmpv6_send(skb, ICMPV6_PARAMPROB,  in ip6_protocol_deliver_rcu()
434 			kfree_skb(skb);  in ip6_protocol_deliver_rcu()
437 			consume_skb(skb);  in ip6_protocol_deliver_rcu()
444 	kfree_skb(skb);  in ip6_protocol_deliver_rcu()
447 static int ip6_input_finish(struct net *net, struct sock *sk, struct sk_buff *skb)  in ip6_input_finish()  argument
450 	ip6_protocol_deliver_rcu(net, skb, 0, false);  in ip6_input_finish()
457 int ip6_input(struct sk_buff *skb)  in ip6_input()  argument
460 		       dev_net(skb->dev), NULL, skb, skb->dev, NULL,  in ip6_input()
465 int ip6_mc_input(struct sk_buff *skb)  in ip6_mc_input()  argument
467 	int sdif = inet6_sdif(skb);  in ip6_mc_input()
472 	__IP6_UPD_PO_STATS(dev_net(skb_dst(skb)->dev),  in ip6_mc_input()
473 			 __in6_dev_get_safely(skb->dev), IPSTATS_MIB_INMCAST,  in ip6_mc_input()
474 			 skb->len);  in ip6_mc_input()
479 		dev = dev_get_by_index_rcu(dev_net(skb->dev), sdif);  in ip6_mc_input()
482 			kfree_skb(skb);  in ip6_mc_input()
486 		dev = skb->dev;  in ip6_mc_input()
489 	hdr = ipv6_hdr(skb);  in ip6_mc_input()
498 	if (dev_net(skb->dev)->ipv6.devconf_all->mc_forwarding &&  in ip6_mc_input()
501 	    likely(!(IP6CB(skb)->flags & IP6SKB_FORWARDED))) {  in ip6_mc_input()
507 		struct inet6_skb_parm *opt = IP6CB(skb);  in ip6_mc_input()
526 				offset = ipv6_skip_exthdr(skb, sizeof(*hdr),  in ip6_mc_input()
531 				if (ipv6_is_mld(skb, nexthdr, offset))  in ip6_mc_input()
540 			skb2 = skb_clone(skb, GFP_ATOMIC);  in ip6_mc_input()
542 			skb2 = skb;  in ip6_mc_input()
543 			skb = NULL;  in ip6_mc_input()
553 		ip6_input(skb);  in ip6_mc_input()
556 		kfree_skb(skb);  in ip6_mc_input()