Lines Matching refs:sk
46 static u32 sk_ehashfn(const struct sock *sk) in sk_ehashfn() argument
49 if (sk->sk_family == AF_INET6 && in sk_ehashfn()
50 !ipv6_addr_v4mapped(&sk->sk_v6_daddr)) in sk_ehashfn()
51 return inet6_ehashfn(sock_net(sk), in sk_ehashfn()
52 &sk->sk_v6_rcv_saddr, sk->sk_num, in sk_ehashfn()
53 &sk->sk_v6_daddr, sk->sk_dport); in sk_ehashfn()
55 return inet_ehashfn(sock_net(sk), in sk_ehashfn()
56 sk->sk_rcv_saddr, sk->sk_num, in sk_ehashfn()
57 sk->sk_daddr, sk->sk_dport); in sk_ehashfn()
95 void inet_bind_hash(struct sock *sk, struct inet_bind_bucket *tb, in inet_bind_hash() argument
98 inet_sk(sk)->inet_num = snum; in inet_bind_hash()
99 sk_add_bind_node(sk, &tb->owners); in inet_bind_hash()
100 inet_csk(sk)->icsk_bind_hash = tb; in inet_bind_hash()
106 static void __inet_put_port(struct sock *sk) in __inet_put_port() argument
108 struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo; in __inet_put_port()
109 const int bhash = inet_bhashfn(sock_net(sk), inet_sk(sk)->inet_num, in __inet_put_port()
115 tb = inet_csk(sk)->icsk_bind_hash; in __inet_put_port()
116 __sk_del_bind_node(sk); in __inet_put_port()
117 inet_csk(sk)->icsk_bind_hash = NULL; in __inet_put_port()
118 inet_sk(sk)->inet_num = 0; in __inet_put_port()
123 void inet_put_port(struct sock *sk) in inet_put_port() argument
126 __inet_put_port(sk); in inet_put_port()
131 int __inet_inherit_port(const struct sock *sk, struct sock *child) in __inet_inherit_port() argument
133 struct inet_hashinfo *table = sk->sk_prot->h.hashinfo; in __inet_inherit_port()
135 const int bhash = inet_bhashfn(sock_net(sk), port, in __inet_inherit_port()
142 tb = inet_csk(sk)->icsk_bind_hash; in __inet_inherit_port()
148 l3mdev = inet_sk_bound_l3mdev(sk); in __inet_inherit_port()
156 if (net_eq(ib_net(tb), sock_net(sk)) && in __inet_inherit_port()
162 sock_net(sk), head, port, in __inet_inherit_port()
179 inet_lhash2_bucket_sk(struct inet_hashinfo *h, struct sock *sk) in inet_lhash2_bucket_sk() argument
184 if (sk->sk_family == AF_INET6) in inet_lhash2_bucket_sk()
185 hash = ipv6_portaddr_hash(sock_net(sk), in inet_lhash2_bucket_sk()
186 &sk->sk_v6_rcv_saddr, in inet_lhash2_bucket_sk()
187 inet_sk(sk)->inet_num); in inet_lhash2_bucket_sk()
190 hash = ipv4_portaddr_hash(sock_net(sk), in inet_lhash2_bucket_sk()
191 inet_sk(sk)->inet_rcv_saddr, in inet_lhash2_bucket_sk()
192 inet_sk(sk)->inet_num); in inet_lhash2_bucket_sk()
196 static void inet_hash2(struct inet_hashinfo *h, struct sock *sk) in inet_hash2() argument
203 ilb2 = inet_lhash2_bucket_sk(h, sk); in inet_hash2()
206 if (sk->sk_reuseport && sk->sk_family == AF_INET6) in inet_hash2()
207 hlist_add_tail_rcu(&inet_csk(sk)->icsk_listen_portaddr_node, in inet_hash2()
210 hlist_add_head_rcu(&inet_csk(sk)->icsk_listen_portaddr_node, in inet_hash2()
216 static void inet_unhash2(struct inet_hashinfo *h, struct sock *sk) in inet_unhash2() argument
221 WARN_ON_ONCE(hlist_unhashed(&inet_csk(sk)->icsk_listen_portaddr_node))) in inet_unhash2()
224 ilb2 = inet_lhash2_bucket_sk(h, sk); in inet_unhash2()
227 hlist_del_init_rcu(&inet_csk(sk)->icsk_listen_portaddr_node); in inet_unhash2()
232 static inline int compute_score(struct sock *sk, struct net *net, in compute_score() argument
238 if (net_eq(sock_net(sk), net) && sk->sk_num == hnum && in compute_score()
239 !ipv6_only_sock(sk)) { in compute_score()
240 if (sk->sk_rcv_saddr != daddr) in compute_score()
243 if (!inet_sk_bound_dev_eq(net, sk->sk_bound_dev_if, dif, sdif)) in compute_score()
246 score = sk->sk_family == PF_INET ? 2 : 1; in compute_score()
247 if (READ_ONCE(sk->sk_incoming_cpu) == raw_smp_processor_id()) in compute_score()
253 static inline struct sock *lookup_reuseport(struct net *net, struct sock *sk, in lookup_reuseport() argument
261 if (sk->sk_reuseport) { in lookup_reuseport()
263 reuse_sk = reuseport_select_sock(sk, phash, skb, doff); in lookup_reuseport()
284 struct sock *sk, *result = NULL; in inet_lhash2_lookup() local
288 sk = (struct sock *)icsk; in inet_lhash2_lookup()
289 score = compute_score(sk, net, hnum, daddr, dif, sdif); in inet_lhash2_lookup()
291 result = lookup_reuseport(net, sk, skb, doff, in inet_lhash2_lookup()
296 result = sk; in inet_lhash2_lookup()
310 struct sock *sk, *reuse_sk; in inet_lookup_run_bpf() local
317 saddr, sport, daddr, hnum, &sk); in inet_lookup_run_bpf()
318 if (no_reuseport || IS_ERR_OR_NULL(sk)) in inet_lookup_run_bpf()
319 return sk; in inet_lookup_run_bpf()
321 reuse_sk = lookup_reuseport(net, sk, skb, doff, saddr, sport, daddr, hnum); in inet_lookup_run_bpf()
323 sk = reuse_sk; in inet_lookup_run_bpf()
324 return sk; in inet_lookup_run_bpf()
370 void sock_gen_put(struct sock *sk) in sock_gen_put() argument
372 if (!refcount_dec_and_test(&sk->sk_refcnt)) in sock_gen_put()
375 if (sk->sk_state == TCP_TIME_WAIT) in sock_gen_put()
376 inet_twsk_free(inet_twsk(sk)); in sock_gen_put()
377 else if (sk->sk_state == TCP_NEW_SYN_RECV) in sock_gen_put()
378 reqsk_free(inet_reqsk(sk)); in sock_gen_put()
380 sk_free(sk); in sock_gen_put()
386 sock_gen_put(skb->sk); in sock_edemux()
398 struct sock *sk; in __inet_lookup_established() local
408 sk_nulls_for_each_rcu(sk, node, &head->chain) { in __inet_lookup_established()
409 if (sk->sk_hash != hash) in __inet_lookup_established()
411 if (likely(INET_MATCH(sk, net, acookie, in __inet_lookup_established()
413 if (unlikely(!refcount_inc_not_zero(&sk->sk_refcnt))) in __inet_lookup_established()
415 if (unlikely(!INET_MATCH(sk, net, acookie, in __inet_lookup_established()
418 sock_gen_put(sk); in __inet_lookup_established()
432 sk = NULL; in __inet_lookup_established()
434 return sk; in __inet_lookup_established()
440 struct sock *sk, __u16 lport, in __inet_check_established() argument
444 struct inet_sock *inet = inet_sk(sk); in __inet_check_established()
447 int dif = sk->sk_bound_dev_if; in __inet_check_established()
448 struct net *net = sock_net(sk); in __inet_check_established()
470 if (twsk_unique(sk, sk2, twp)) in __inet_check_established()
482 sk->sk_hash = hash; in __inet_check_established()
483 WARN_ON(!sk_unhashed(sk)); in __inet_check_established()
484 __sk_nulls_add_node_rcu(sk, &head->chain); in __inet_check_established()
490 sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1); in __inet_check_established()
505 static u32 inet_sk_port_offset(const struct sock *sk) in inet_sk_port_offset() argument
507 const struct inet_sock *inet = inet_sk(sk); in inet_sk_port_offset()
517 static bool inet_ehash_lookup_by_sk(struct sock *sk, in inet_ehash_lookup_by_sk() argument
520 const __portpair ports = INET_COMBINED_PORTS(sk->sk_dport, sk->sk_num); in inet_ehash_lookup_by_sk()
521 const int sdif = sk->sk_bound_dev_if; in inet_ehash_lookup_by_sk()
522 const int dif = sk->sk_bound_dev_if; in inet_ehash_lookup_by_sk()
524 struct net *net = sock_net(sk); in inet_ehash_lookup_by_sk()
527 INET_ADDR_COOKIE(acookie, sk->sk_daddr, sk->sk_rcv_saddr); in inet_ehash_lookup_by_sk()
530 if (esk->sk_hash != sk->sk_hash) in inet_ehash_lookup_by_sk()
532 if (sk->sk_family == AF_INET) { in inet_ehash_lookup_by_sk()
534 sk->sk_daddr, in inet_ehash_lookup_by_sk()
535 sk->sk_rcv_saddr, in inet_ehash_lookup_by_sk()
541 else if (sk->sk_family == AF_INET6) { in inet_ehash_lookup_by_sk()
543 &sk->sk_v6_daddr, in inet_ehash_lookup_by_sk()
544 &sk->sk_v6_rcv_saddr, in inet_ehash_lookup_by_sk()
559 bool inet_ehash_insert(struct sock *sk, struct sock *osk, bool *found_dup_sk) in inet_ehash_insert() argument
561 struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo; in inet_ehash_insert()
567 WARN_ON_ONCE(!sk_unhashed(sk)); in inet_ehash_insert()
569 sk->sk_hash = sk_ehashfn(sk); in inet_ehash_insert()
570 head = inet_ehash_bucket(hashinfo, sk->sk_hash); in inet_ehash_insert()
572 lock = inet_ehash_lockp(hashinfo, sk->sk_hash); in inet_ehash_insert()
576 WARN_ON_ONCE(sk->sk_hash != osk->sk_hash); in inet_ehash_insert()
579 *found_dup_sk = inet_ehash_lookup_by_sk(sk, list); in inet_ehash_insert()
585 __sk_nulls_add_node_rcu(sk, list); in inet_ehash_insert()
592 bool inet_ehash_nolisten(struct sock *sk, struct sock *osk, bool *found_dup_sk) in inet_ehash_nolisten() argument
594 bool ok = inet_ehash_insert(sk, osk, found_dup_sk); in inet_ehash_nolisten()
597 sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1); in inet_ehash_nolisten()
599 percpu_counter_inc(sk->sk_prot->orphan_count); in inet_ehash_nolisten()
600 inet_sk_set_state(sk, TCP_CLOSE); in inet_ehash_nolisten()
601 sock_set_flag(sk, SOCK_DEAD); in inet_ehash_nolisten()
602 inet_csk_destroy_sock(sk); in inet_ehash_nolisten()
608 static int inet_reuseport_add_sock(struct sock *sk, in inet_reuseport_add_sock() argument
611 struct inet_bind_bucket *tb = inet_csk(sk)->icsk_bind_hash; in inet_reuseport_add_sock()
614 kuid_t uid = sock_i_uid(sk); in inet_reuseport_add_sock()
617 if (sk2 != sk && in inet_reuseport_add_sock()
618 sk2->sk_family == sk->sk_family && in inet_reuseport_add_sock()
619 ipv6_only_sock(sk2) == ipv6_only_sock(sk) && in inet_reuseport_add_sock()
620 sk2->sk_bound_dev_if == sk->sk_bound_dev_if && in inet_reuseport_add_sock()
623 inet_rcv_saddr_equal(sk, sk2, false)) in inet_reuseport_add_sock()
624 return reuseport_add_sock(sk, sk2, in inet_reuseport_add_sock()
625 inet_rcv_saddr_any(sk)); in inet_reuseport_add_sock()
628 return reuseport_alloc(sk, inet_rcv_saddr_any(sk)); in inet_reuseport_add_sock()
631 int __inet_hash(struct sock *sk, struct sock *osk) in __inet_hash() argument
633 struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo; in __inet_hash()
637 if (sk->sk_state != TCP_LISTEN) { in __inet_hash()
638 inet_ehash_nolisten(sk, osk, NULL); in __inet_hash()
641 WARN_ON(!sk_unhashed(sk)); in __inet_hash()
642 ilb = &hashinfo->listening_hash[inet_sk_listen_hashfn(sk)]; in __inet_hash()
645 if (sk->sk_reuseport) { in __inet_hash()
646 err = inet_reuseport_add_sock(sk, ilb); in __inet_hash()
650 if (IS_ENABLED(CONFIG_IPV6) && sk->sk_reuseport && in __inet_hash()
651 sk->sk_family == AF_INET6) in __inet_hash()
652 __sk_nulls_add_node_tail_rcu(sk, &ilb->nulls_head); in __inet_hash()
654 __sk_nulls_add_node_rcu(sk, &ilb->nulls_head); in __inet_hash()
655 inet_hash2(hashinfo, sk); in __inet_hash()
657 sock_set_flag(sk, SOCK_RCU_FREE); in __inet_hash()
658 sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1); in __inet_hash()
666 int inet_hash(struct sock *sk) in inet_hash() argument
670 if (sk->sk_state != TCP_CLOSE) { in inet_hash()
672 err = __inet_hash(sk, NULL); in inet_hash()
680 void inet_unhash(struct sock *sk) in inet_unhash() argument
682 struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo; in inet_unhash()
686 if (sk_unhashed(sk)) in inet_unhash()
689 if (sk->sk_state == TCP_LISTEN) { in inet_unhash()
690 ilb = &hashinfo->listening_hash[inet_sk_listen_hashfn(sk)]; in inet_unhash()
693 lock = inet_ehash_lockp(hashinfo, sk->sk_hash); in inet_unhash()
696 if (sk_unhashed(sk)) in inet_unhash()
699 if (rcu_access_pointer(sk->sk_reuseport_cb)) in inet_unhash()
700 reuseport_detach_sock(sk); in inet_unhash()
702 inet_unhash2(hashinfo, sk); in inet_unhash()
705 __sk_nulls_del_node_init_rcu(sk); in inet_unhash()
706 sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1); in inet_unhash()
713 struct sock *sk, u32 port_offset, in __inet_hash_connect() argument
720 int port = inet_sk(sk)->inet_num; in __inet_hash_connect()
721 struct net *net = sock_net(sk); in __inet_hash_connect()
731 tb = inet_csk(sk)->icsk_bind_hash; in __inet_hash_connect()
733 if (sk_head(&tb->owners) == sk && !sk->sk_bind_node.next) { in __inet_hash_connect()
734 inet_ehash_nolisten(sk, NULL, NULL); in __inet_hash_connect()
740 ret = check_established(death_row, sk, port, NULL); in __inet_hash_connect()
745 l3mdev = inet_sk_bound_l3mdev(sk); in __inet_hash_connect()
779 if (!check_established(death_row, sk, in __inet_hash_connect()
810 inet_bind_hash(sk, tb, port); in __inet_hash_connect()
811 if (sk_unhashed(sk)) { in __inet_hash_connect()
812 inet_sk(sk)->inet_sport = htons(port); in __inet_hash_connect()
813 inet_ehash_nolisten(sk, (struct sock *)tw, NULL); in __inet_hash_connect()
828 struct sock *sk) in inet_hash_connect() argument
832 if (!inet_sk(sk)->inet_num) in inet_hash_connect()
833 port_offset = inet_sk_port_offset(sk); in inet_hash_connect()
834 return __inet_hash_connect(death_row, sk, port_offset, in inet_hash_connect()