Lines Matching refs:skb
50 struct sk_buff *skb) in ip6_rcv_finish_core() argument
53 !skb_dst(skb) && !skb->sk) { in ip6_rcv_finish_core()
54 switch (ipv6_hdr(skb)->nexthdr) { in ip6_rcv_finish_core()
57 tcp_v6_early_demux(skb); in ip6_rcv_finish_core()
61 udp_v6_early_demux(skb); in ip6_rcv_finish_core()
66 if (!skb_valid_dst(skb)) in ip6_rcv_finish_core()
67 ip6_route_input(skb); in ip6_rcv_finish_core()
70 int ip6_rcv_finish(struct net *net, struct sock *sk, struct sk_buff *skb) in ip6_rcv_finish() argument
75 skb = l3mdev_ip6_rcv(skb); in ip6_rcv_finish()
76 if (!skb) in ip6_rcv_finish()
78 ip6_rcv_finish_core(net, sk, skb); in ip6_rcv_finish()
80 return dst_input(skb); in ip6_rcv_finish()
85 struct sk_buff *skb, *next; in ip6_sublist_rcv_finish() local
87 list_for_each_entry_safe(skb, next, head, list) { in ip6_sublist_rcv_finish()
88 skb_list_del_init(skb); in ip6_sublist_rcv_finish()
89 dst_input(skb); in ip6_sublist_rcv_finish()
93 static bool ip6_can_use_hint(const struct sk_buff *skb, in ip6_can_use_hint() argument
96 return hint && !skb_dst(skb) && in ip6_can_use_hint()
97 ipv6_addr_equal(&ipv6_hdr(hint)->daddr, &ipv6_hdr(skb)->daddr); in ip6_can_use_hint()
101 struct sk_buff *skb) in ip6_extract_route_hint() argument
106 return skb; in ip6_extract_route_hint()
112 struct sk_buff *skb, *next, *hint = NULL; in ip6_list_rcv_finish() local
117 list_for_each_entry_safe(skb, next, head, list) { in ip6_list_rcv_finish()
120 skb_list_del_init(skb); in ip6_list_rcv_finish()
124 skb = l3mdev_ip6_rcv(skb); in ip6_list_rcv_finish()
125 if (!skb) in ip6_list_rcv_finish()
128 if (ip6_can_use_hint(skb, hint)) in ip6_list_rcv_finish()
129 skb_dst_copy(skb, hint); in ip6_list_rcv_finish()
131 ip6_rcv_finish_core(net, sk, skb); in ip6_list_rcv_finish()
132 dst = skb_dst(skb); in ip6_list_rcv_finish()
134 hint = ip6_extract_route_hint(net, skb); in ip6_list_rcv_finish()
143 list_add_tail(&skb->list, &sublist); in ip6_list_rcv_finish()
149 static struct sk_buff *ip6_rcv_core(struct sk_buff *skb, struct net_device *dev, in ip6_rcv_core() argument
156 if (skb->pkt_type == PACKET_OTHERHOST) { in ip6_rcv_core()
157 kfree_skb(skb); in ip6_rcv_core()
163 idev = __in6_dev_get(skb->dev); in ip6_rcv_core()
165 __IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_IN, skb->len); in ip6_rcv_core()
167 if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL || in ip6_rcv_core()
173 memset(IP6CB(skb), 0, sizeof(struct inet6_skb_parm)); in ip6_rcv_core()
186 IP6CB(skb)->iif = skb_valid_dst(skb) ? ip6_dst_idev(skb_dst(skb))->dev->ifindex : dev->ifindex; in ip6_rcv_core()
188 if (unlikely(!pskb_may_pull(skb, sizeof(*hdr)))) in ip6_rcv_core()
191 hdr = ipv6_hdr(skb); in ip6_rcv_core()
199 max_t(unsigned short, 1, skb_shinfo(skb)->gso_segs)); in ip6_rcv_core()
219 if (!(skb->pkt_type == PACKET_LOOPBACK || in ip6_rcv_core()
230 (skb->pkt_type == PACKET_BROADCAST || in ip6_rcv_core()
231 skb->pkt_type == PACKET_MULTICAST) && in ip6_rcv_core()
252 skb->transport_header = skb->network_header + sizeof(*hdr); in ip6_rcv_core()
253 IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr); in ip6_rcv_core()
259 if (pkt_len + sizeof(struct ipv6hdr) > skb->len) { in ip6_rcv_core()
264 if (pskb_trim_rcsum(skb, pkt_len + sizeof(struct ipv6hdr))) { in ip6_rcv_core()
268 hdr = ipv6_hdr(skb); in ip6_rcv_core()
272 if (ipv6_parse_hopopts(skb) < 0) { in ip6_rcv_core()
282 if (!skb_sk_is_prefetched(skb)) in ip6_rcv_core()
283 skb_orphan(skb); in ip6_rcv_core()
285 return skb; in ip6_rcv_core()
290 kfree_skb(skb); in ip6_rcv_core()
294 int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device… in ipv6_rcv() argument
296 struct net *net = dev_net(skb->dev); in ipv6_rcv()
298 skb = ip6_rcv_core(skb, dev, net); in ipv6_rcv()
299 if (skb == NULL) in ipv6_rcv()
302 net, NULL, skb, dev, NULL, in ipv6_rcv()
320 struct sk_buff *skb, *next; in ipv6_list_rcv() local
324 list_for_each_entry_safe(skb, next, head, list) { in ipv6_list_rcv()
325 struct net_device *dev = skb->dev; in ipv6_list_rcv()
328 skb_list_del_init(skb); in ipv6_list_rcv()
329 skb = ip6_rcv_core(skb, dev, net); in ipv6_list_rcv()
330 if (skb == NULL) in ipv6_list_rcv()
342 list_add_tail(&skb->list, &sublist); in ipv6_list_rcv()
355 void ip6_protocol_deliver_rcu(struct net *net, struct sk_buff *skb, int nexthdr, in ip6_protocol_deliver_rcu() argument
368 idev = ip6_dst_idev(skb_dst(skb)); in ip6_protocol_deliver_rcu()
369 nhoff = IP6CB(skb)->nhoff; in ip6_protocol_deliver_rcu()
371 if (!pskb_pull(skb, skb_transport_offset(skb))) in ip6_protocol_deliver_rcu()
373 nexthdr = skb_network_header(skb)[nhoff]; in ip6_protocol_deliver_rcu()
377 raw = raw6_local_deliver(skb, nexthdr); in ip6_protocol_deliver_rcu()
393 int sdif = inet6_sdif(skb); in ip6_protocol_deliver_rcu()
402 nf_reset_ct(skb); in ip6_protocol_deliver_rcu()
404 skb_postpull_rcsum(skb, skb_network_header(skb), in ip6_protocol_deliver_rcu()
405 skb_network_header_len(skb)); in ip6_protocol_deliver_rcu()
406 hdr = ipv6_hdr(skb); in ip6_protocol_deliver_rcu()
414 dev = skb->dev; in ip6_protocol_deliver_rcu()
420 !ipv6_is_mld(skb, nexthdr, skb_network_header_len(skb))) in ip6_protocol_deliver_rcu()
424 !xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) in ip6_protocol_deliver_rcu()
428 skb); in ip6_protocol_deliver_rcu()
446 if (xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) { in ip6_protocol_deliver_rcu()
449 icmpv6_send(skb, ICMPV6_PARAMPROB, in ip6_protocol_deliver_rcu()
452 kfree_skb(skb); in ip6_protocol_deliver_rcu()
455 consume_skb(skb); in ip6_protocol_deliver_rcu()
462 kfree_skb(skb); in ip6_protocol_deliver_rcu()
465 static int ip6_input_finish(struct net *net, struct sock *sk, struct sk_buff *skb) in ip6_input_finish() argument
468 ip6_protocol_deliver_rcu(net, skb, 0, false); in ip6_input_finish()
475 int ip6_input(struct sk_buff *skb) in ip6_input() argument
478 dev_net(skb->dev), NULL, skb, skb->dev, NULL, in ip6_input()
483 int ip6_mc_input(struct sk_buff *skb) in ip6_mc_input() argument
485 int sdif = inet6_sdif(skb); in ip6_mc_input()
490 __IP6_UPD_PO_STATS(dev_net(skb_dst(skb)->dev), in ip6_mc_input()
491 __in6_dev_get_safely(skb->dev), IPSTATS_MIB_INMCAST, in ip6_mc_input()
492 skb->len); in ip6_mc_input()
497 dev = dev_get_by_index_rcu(dev_net(skb->dev), sdif); in ip6_mc_input()
500 kfree_skb(skb); in ip6_mc_input()
504 dev = skb->dev; in ip6_mc_input()
507 hdr = ipv6_hdr(skb); in ip6_mc_input()
516 if (atomic_read(&dev_net(skb->dev)->ipv6.devconf_all->mc_forwarding) && in ip6_mc_input()
519 likely(!(IP6CB(skb)->flags & IP6SKB_FORWARDED))) { in ip6_mc_input()
525 struct inet6_skb_parm *opt = IP6CB(skb); in ip6_mc_input()
544 offset = ipv6_skip_exthdr(skb, sizeof(*hdr), in ip6_mc_input()
549 if (ipv6_is_mld(skb, nexthdr, offset)) in ip6_mc_input()
558 skb2 = skb_clone(skb, GFP_ATOMIC); in ip6_mc_input()
560 skb2 = skb; in ip6_mc_input()
561 skb = NULL; in ip6_mc_input()
571 ip6_input(skb); in ip6_mc_input()
574 kfree_skb(skb); in ip6_mc_input()