Lines Matching refs:skb
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()
89 static bool ip6_can_use_hint(const struct sk_buff *skb, in ip6_can_use_hint() argument
92 return hint && !skb_dst(skb) && in ip6_can_use_hint()
93 ipv6_addr_equal(&ipv6_hdr(hint)->daddr, &ipv6_hdr(skb)->daddr); in ip6_can_use_hint()
97 struct sk_buff *skb) in ip6_extract_route_hint() argument
102 return skb; in ip6_extract_route_hint()
108 struct sk_buff *skb, *next, *hint = NULL; in ip6_list_rcv_finish() local
113 list_for_each_entry_safe(skb, next, head, list) { in ip6_list_rcv_finish()
116 skb_list_del_init(skb); in ip6_list_rcv_finish()
120 skb = l3mdev_ip6_rcv(skb); in ip6_list_rcv_finish()
121 if (!skb) in ip6_list_rcv_finish()
124 if (ip6_can_use_hint(skb, hint)) in ip6_list_rcv_finish()
125 skb_dst_copy(skb, hint); in ip6_list_rcv_finish()
127 ip6_rcv_finish_core(net, sk, skb); in ip6_list_rcv_finish()
128 dst = skb_dst(skb); in ip6_list_rcv_finish()
130 hint = ip6_extract_route_hint(net, skb); in ip6_list_rcv_finish()
139 list_add_tail(&skb->list, &sublist); in ip6_list_rcv_finish()
145 static struct sk_buff *ip6_rcv_core(struct sk_buff *skb, struct net_device *dev, in ip6_rcv_core() argument
152 if (skb->pkt_type == PACKET_OTHERHOST) { in ip6_rcv_core()
153 kfree_skb(skb); in ip6_rcv_core()
159 idev = __in6_dev_get(skb->dev); in ip6_rcv_core()
161 __IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_IN, skb->len); in ip6_rcv_core()
163 if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL || in ip6_rcv_core()
169 memset(IP6CB(skb), 0, sizeof(struct inet6_skb_parm)); in ip6_rcv_core()
182 IP6CB(skb)->iif = skb_valid_dst(skb) ? ip6_dst_idev(skb_dst(skb))->dev->ifindex : dev->ifindex; in ip6_rcv_core()
184 if (unlikely(!pskb_may_pull(skb, sizeof(*hdr)))) in ip6_rcv_core()
187 hdr = ipv6_hdr(skb); in ip6_rcv_core()
195 max_t(unsigned short, 1, skb_shinfo(skb)->gso_segs)); in ip6_rcv_core()
215 if (!(skb->pkt_type == PACKET_LOOPBACK || in ip6_rcv_core()
226 (skb->pkt_type == PACKET_BROADCAST || in ip6_rcv_core()
227 skb->pkt_type == PACKET_MULTICAST) && in ip6_rcv_core()
248 skb->transport_header = skb->network_header + sizeof(*hdr); in ip6_rcv_core()
249 IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr); in ip6_rcv_core()
255 if (pkt_len + sizeof(struct ipv6hdr) > skb->len) { in ip6_rcv_core()
260 if (pskb_trim_rcsum(skb, pkt_len + sizeof(struct ipv6hdr))) { in ip6_rcv_core()
264 hdr = ipv6_hdr(skb); in ip6_rcv_core()
268 if (ipv6_parse_hopopts(skb) < 0) { in ip6_rcv_core()
278 if (!skb_sk_is_prefetched(skb)) in ip6_rcv_core()
279 skb_orphan(skb); in ip6_rcv_core()
281 return skb; in ip6_rcv_core()
286 kfree_skb(skb); in ip6_rcv_core()
290 int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device… in ipv6_rcv() argument
292 struct net *net = dev_net(skb->dev); in ipv6_rcv()
294 skb = ip6_rcv_core(skb, dev, net); in ipv6_rcv()
295 if (skb == NULL) in ipv6_rcv()
298 net, NULL, skb, dev, NULL, in ipv6_rcv()
316 struct sk_buff *skb, *next; in ipv6_list_rcv() local
320 list_for_each_entry_safe(skb, next, head, list) { in ipv6_list_rcv()
321 struct net_device *dev = skb->dev; in ipv6_list_rcv()
324 skb_list_del_init(skb); in ipv6_list_rcv()
325 skb = ip6_rcv_core(skb, dev, net); in ipv6_list_rcv()
326 if (skb == NULL) in ipv6_list_rcv()
338 list_add_tail(&skb->list, &sublist); in ipv6_list_rcv()
350 void ip6_protocol_deliver_rcu(struct net *net, struct sk_buff *skb, int nexthdr, in ip6_protocol_deliver_rcu() argument
363 idev = ip6_dst_idev(skb_dst(skb)); in ip6_protocol_deliver_rcu()
364 nhoff = IP6CB(skb)->nhoff; in ip6_protocol_deliver_rcu()
366 if (!pskb_pull(skb, skb_transport_offset(skb))) in ip6_protocol_deliver_rcu()
368 nexthdr = skb_network_header(skb)[nhoff]; in ip6_protocol_deliver_rcu()
372 raw = raw6_local_deliver(skb, nexthdr); in ip6_protocol_deliver_rcu()
388 int sdif = inet6_sdif(skb); in ip6_protocol_deliver_rcu()
397 nf_reset_ct(skb); in ip6_protocol_deliver_rcu()
399 skb_postpull_rcsum(skb, skb_network_header(skb), in ip6_protocol_deliver_rcu()
400 skb_network_header_len(skb)); in ip6_protocol_deliver_rcu()
401 hdr = ipv6_hdr(skb); in ip6_protocol_deliver_rcu()
409 dev = skb->dev; in ip6_protocol_deliver_rcu()
415 !ipv6_is_mld(skb, nexthdr, skb_network_header_len(skb))) in ip6_protocol_deliver_rcu()
419 !xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) in ip6_protocol_deliver_rcu()
423 skb); in ip6_protocol_deliver_rcu()
441 if (xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) { in ip6_protocol_deliver_rcu()
444 icmpv6_send(skb, ICMPV6_PARAMPROB, in ip6_protocol_deliver_rcu()
447 kfree_skb(skb); in ip6_protocol_deliver_rcu()
450 consume_skb(skb); in ip6_protocol_deliver_rcu()
457 kfree_skb(skb); in ip6_protocol_deliver_rcu()
460 static int ip6_input_finish(struct net *net, struct sock *sk, struct sk_buff *skb) in ip6_input_finish() argument
463 ip6_protocol_deliver_rcu(net, skb, 0, false); in ip6_input_finish()
470 int ip6_input(struct sk_buff *skb) in ip6_input() argument
473 dev_net(skb->dev), NULL, skb, skb->dev, NULL, in ip6_input()
478 int ip6_mc_input(struct sk_buff *skb) in ip6_mc_input() argument
480 int sdif = inet6_sdif(skb); in ip6_mc_input()
485 __IP6_UPD_PO_STATS(dev_net(skb_dst(skb)->dev), in ip6_mc_input()
486 __in6_dev_get_safely(skb->dev), IPSTATS_MIB_INMCAST, in ip6_mc_input()
487 skb->len); in ip6_mc_input()
492 dev = dev_get_by_index_rcu(dev_net(skb->dev), sdif); in ip6_mc_input()
495 kfree_skb(skb); in ip6_mc_input()
499 dev = skb->dev; in ip6_mc_input()
502 hdr = ipv6_hdr(skb); in ip6_mc_input()
511 if (dev_net(skb->dev)->ipv6.devconf_all->mc_forwarding && in ip6_mc_input()
514 likely(!(IP6CB(skb)->flags & IP6SKB_FORWARDED))) { in ip6_mc_input()
520 struct inet6_skb_parm *opt = IP6CB(skb); in ip6_mc_input()
539 offset = ipv6_skip_exthdr(skb, sizeof(*hdr), in ip6_mc_input()
544 if (ipv6_is_mld(skb, nexthdr, offset)) in ip6_mc_input()
553 skb2 = skb_clone(skb, GFP_ATOMIC); in ip6_mc_input()
555 skb2 = skb; in ip6_mc_input()
556 skb = NULL; in ip6_mc_input()
566 ip6_input(skb); in ip6_mc_input()
569 kfree_skb(skb); in ip6_mc_input()