75 static int sctp_add_backlog(struct sock *sk, struct sk_buff *skb);
109 	struct sock *sk;  in sctp_rcv()  local
181 	sk = rcvr->sk;  in sctp_rcv()
187 	if (sk->sk_bound_dev_if && (sk->sk_bound_dev_if != af->skb_iif(skb))) {  in sctp_rcv()
195 		sk = net->sctp.ctl_sock;  in sctp_rcv()
196 		ep = sctp_sk(sk)->ep;  in sctp_rcv()
216 	if (!xfrm_policy_check(sk, XFRM_POLICY_IN, skb, family))  in sctp_rcv()
220 	if (sk_filter(sk, skb))  in sctp_rcv()
224 	chunk = sctp_chunkify(skb, asoc, sk);  in sctp_rcv()
245 	bh_lock_sock(sk);  in sctp_rcv()
247 	if (sk != rcvr->sk) {  in sctp_rcv()
255 		bh_unlock_sock(sk);  in sctp_rcv()
256 		sk = rcvr->sk;  in sctp_rcv()
257 		bh_lock_sock(sk);  in sctp_rcv()
260 	if (sock_owned_by_user(sk)) {  in sctp_rcv()
261 		if (sctp_add_backlog(sk, skb)) {  in sctp_rcv()
262 			bh_unlock_sock(sk);  in sctp_rcv()
273 	bh_unlock_sock(sk);  in sctp_rcv()
303 int sctp_backlog_rcv(struct sock *sk, struct sk_buff *skb)  in sctp_backlog_rcv()  argument
321 	if (unlikely(rcvr->sk != sk)) {  in sctp_backlog_rcv()
333 		sk = rcvr->sk;  in sctp_backlog_rcv()
334 		bh_lock_sock(sk);  in sctp_backlog_rcv()
336 		if (sock_owned_by_user(sk)) {  in sctp_backlog_rcv()
337 			if (sk_add_backlog(sk, skb, sk->sk_rcvbuf))  in sctp_backlog_rcv()
344 		bh_unlock_sock(sk);  in sctp_backlog_rcv()
365 static int sctp_add_backlog(struct sock *sk, struct sk_buff *skb)  in sctp_add_backlog()  argument
371 	ret = sk_add_backlog(sk, skb, sk->sk_rcvbuf);  in sctp_add_backlog()
389 void sctp_icmp_frag_needed(struct sock *sk, struct sctp_association *asoc,  in sctp_icmp_frag_needed()  argument
395 	if (sock_owned_by_user(sk)) {  in sctp_icmp_frag_needed()
403 		sctp_transport_update_pmtu(sk, t, pmtu);  in sctp_icmp_frag_needed()
406 		sctp_assoc_sync_pmtu(sk, asoc);  in sctp_icmp_frag_needed()
418 void sctp_icmp_redirect(struct sock *sk, struct sctp_transport *t,  in sctp_icmp_redirect()  argument
427 		dst->ops->redirect(dst, sk, skb);  in sctp_icmp_redirect()
441 void sctp_icmp_proto_unreachable(struct sock *sk,  in sctp_icmp_proto_unreachable()  argument
445 	if (sock_owned_by_user(sk)) {  in sctp_icmp_proto_unreachable()
454 		struct net *net = sock_net(sk);  in sctp_icmp_proto_unreachable()
478 	struct sock *sk = NULL;  in sctp_err_lookup()  local
503 	sk = asoc->base.sk;  in sctp_err_lookup()
529 	bh_lock_sock(sk);  in sctp_err_lookup()
534 	if (sock_owned_by_user(sk))  in sctp_err_lookup()
539 	return sk;  in sctp_err_lookup()
547 void sctp_err_finish(struct sock *sk, struct sctp_association *asoc)  in sctp_err_finish()  argument
549 	bh_unlock_sock(sk);  in sctp_err_finish()
574 	struct sock *sk;  in sctp_v4_err()  local
587 	sk = sctp_err_lookup(net, AF_INET, skb, sctp_hdr(skb), &asoc, &transport);  in sctp_v4_err()
591 	if (!sk) {  in sctp_v4_err()
609 			sctp_icmp_frag_needed(sk, asoc, transport, info);  in sctp_v4_err()
613 				sctp_icmp_proto_unreachable(sk, asoc,  in sctp_v4_err()
630 		sctp_icmp_redirect(sk, transport, skb);  in sctp_v4_err()
636 	inet = inet_sk(sk);  in sctp_v4_err()
637 	if (!sock_owned_by_user(sk) && inet->recverr) {  in sctp_v4_err()
638 		sk->sk_err = err;  in sctp_v4_err()
639 		sk->sk_error_report(sk);  in sctp_v4_err()
641 		sk->sk_err_soft = err;  in sctp_v4_err()
645 	sctp_err_finish(sk, asoc);  in sctp_v4_err()
711 	struct net *net = sock_net(ep->base.sk);  in __sctp_hash_endpoint()
736 	struct net *net = sock_net(ep->base.sk);  in __sctp_unhash_endpoint()
788 	struct net *net = sock_net(asoc->base.sk);  in __sctp_hash_established()
819 	struct net *net = sock_net(asoc->base.sk);  in __sctp_unhash_established()