Lines Matching refs:sk
157 bool sk_ns_capable(const struct sock *sk, in sk_ns_capable() argument
160 return file_ns_capable(sk->sk_socket->file, user_ns, cap) && in sk_ns_capable()
174 bool sk_capable(const struct sock *sk, int cap) in sk_capable() argument
176 return sk_ns_capable(sk, &init_user_ns, cap); in sk_capable()
189 bool sk_net_capable(const struct sock *sk, int cap) in sk_net_capable() argument
191 return sk_ns_capable(sk, sock_net(sk)->user_ns, cap); in sk_net_capable()
293 void sk_set_memalloc(struct sock *sk) in sk_set_memalloc() argument
295 sock_set_flag(sk, SOCK_MEMALLOC); in sk_set_memalloc()
296 sk->sk_allocation |= __GFP_MEMALLOC; in sk_set_memalloc()
301 void sk_clear_memalloc(struct sock *sk) in sk_clear_memalloc() argument
303 sock_reset_flag(sk, SOCK_MEMALLOC); in sk_clear_memalloc()
304 sk->sk_allocation &= ~__GFP_MEMALLOC; in sk_clear_memalloc()
314 sk_mem_reclaim(sk); in sk_clear_memalloc()
318 int __sk_backlog_rcv(struct sock *sk, struct sk_buff *skb) in __sk_backlog_rcv() argument
324 BUG_ON(!sock_flag(sk, SOCK_MEMALLOC)); in __sk_backlog_rcv()
327 ret = sk->sk_backlog_rcv(sk, skb); in __sk_backlog_rcv()
416 static bool sock_needs_netstamp(const struct sock *sk) in sock_needs_netstamp() argument
418 switch (sk->sk_family) { in sock_needs_netstamp()
427 static void sock_disable_timestamp(struct sock *sk, unsigned long flags) in sock_disable_timestamp() argument
429 if (sk->sk_flags & flags) { in sock_disable_timestamp()
430 sk->sk_flags &= ~flags; in sock_disable_timestamp()
431 if (sock_needs_netstamp(sk) && in sock_disable_timestamp()
432 !(sk->sk_flags & SK_FLAGS_TIMESTAMP)) in sock_disable_timestamp()
438 int __sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) in __sock_queue_rcv_skb() argument
441 struct sk_buff_head *list = &sk->sk_receive_queue; in __sock_queue_rcv_skb()
443 if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf) { in __sock_queue_rcv_skb()
444 atomic_inc(&sk->sk_drops); in __sock_queue_rcv_skb()
445 trace_sock_rcvqueue_full(sk, skb); in __sock_queue_rcv_skb()
449 if (!sk_rmem_schedule(sk, skb, skb->truesize)) { in __sock_queue_rcv_skb()
450 atomic_inc(&sk->sk_drops); in __sock_queue_rcv_skb()
455 skb_set_owner_r(skb, sk); in __sock_queue_rcv_skb()
463 sock_skb_set_dropcount(sk, skb); in __sock_queue_rcv_skb()
467 if (!sock_flag(sk, SOCK_DEAD)) in __sock_queue_rcv_skb()
468 sk->sk_data_ready(sk); in __sock_queue_rcv_skb()
473 int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) in sock_queue_rcv_skb() argument
477 err = sk_filter(sk, skb); in sock_queue_rcv_skb()
481 return __sock_queue_rcv_skb(sk, skb); in sock_queue_rcv_skb()
485 int __sk_receive_skb(struct sock *sk, struct sk_buff *skb, in __sk_receive_skb() argument
490 if (sk_filter_trim_cap(sk, skb, trim_cap)) in __sk_receive_skb()
495 if (sk_rcvqueues_full(sk, sk->sk_rcvbuf)) { in __sk_receive_skb()
496 atomic_inc(&sk->sk_drops); in __sk_receive_skb()
500 bh_lock_sock_nested(sk); in __sk_receive_skb()
502 bh_lock_sock(sk); in __sk_receive_skb()
503 if (!sock_owned_by_user(sk)) { in __sk_receive_skb()
507 mutex_acquire(&sk->sk_lock.dep_map, 0, 1, _RET_IP_); in __sk_receive_skb()
509 rc = sk_backlog_rcv(sk, skb); in __sk_receive_skb()
511 mutex_release(&sk->sk_lock.dep_map, _RET_IP_); in __sk_receive_skb()
512 } else if (sk_add_backlog(sk, skb, READ_ONCE(sk->sk_rcvbuf))) { in __sk_receive_skb()
513 bh_unlock_sock(sk); in __sk_receive_skb()
514 atomic_inc(&sk->sk_drops); in __sk_receive_skb()
518 bh_unlock_sock(sk); in __sk_receive_skb()
521 sock_put(sk); in __sk_receive_skb()
529 struct dst_entry *__sk_dst_check(struct sock *sk, u32 cookie) in __sk_dst_check() argument
531 struct dst_entry *dst = __sk_dst_get(sk); in __sk_dst_check()
534 sk_tx_queue_clear(sk); in __sk_dst_check()
535 sk->sk_dst_pending_confirm = 0; in __sk_dst_check()
536 RCU_INIT_POINTER(sk->sk_dst_cache, NULL); in __sk_dst_check()
545 struct dst_entry *sk_dst_check(struct sock *sk, u32 cookie) in sk_dst_check() argument
547 struct dst_entry *dst = sk_dst_get(sk); in sk_dst_check()
550 sk_dst_reset(sk); in sk_dst_check()
559 static int sock_bindtoindex_locked(struct sock *sk, int ifindex) in sock_bindtoindex_locked() argument
563 struct net *net = sock_net(sk); in sock_bindtoindex_locked()
567 if (sk->sk_bound_dev_if && !ns_capable(net->user_ns, CAP_NET_RAW)) in sock_bindtoindex_locked()
574 sk->sk_bound_dev_if = ifindex; in sock_bindtoindex_locked()
575 if (sk->sk_prot->rehash) in sock_bindtoindex_locked()
576 sk->sk_prot->rehash(sk); in sock_bindtoindex_locked()
577 sk_dst_reset(sk); in sock_bindtoindex_locked()
587 int sock_bindtoindex(struct sock *sk, int ifindex, bool lock_sk) in sock_bindtoindex() argument
592 lock_sock(sk); in sock_bindtoindex()
593 ret = sock_bindtoindex_locked(sk, ifindex); in sock_bindtoindex()
595 release_sock(sk); in sock_bindtoindex()
601 static int sock_setbindtodevice(struct sock *sk, sockptr_t optval, int optlen) in sock_setbindtodevice() argument
605 struct net *net = sock_net(sk); in sock_setbindtodevice()
640 return sock_bindtoindex(sk, index, true); in sock_setbindtodevice()
647 static int sock_getbindtodevice(struct sock *sk, char __user *optval, in sock_getbindtodevice() argument
652 struct net *net = sock_net(sk); in sock_getbindtodevice()
655 if (sk->sk_bound_dev_if == 0) { in sock_getbindtodevice()
664 ret = netdev_get_name(net, devname, sk->sk_bound_dev_if); in sock_getbindtodevice()
687 bool sk_mc_loop(struct sock *sk) in sk_mc_loop() argument
691 if (!sk) in sk_mc_loop()
693 switch (sk->sk_family) { in sk_mc_loop()
695 return inet_sk(sk)->mc_loop; in sk_mc_loop()
698 return inet6_sk(sk)->mc_loop; in sk_mc_loop()
706 void sock_set_reuseaddr(struct sock *sk) in sock_set_reuseaddr() argument
708 lock_sock(sk); in sock_set_reuseaddr()
709 sk->sk_reuse = SK_CAN_REUSE; in sock_set_reuseaddr()
710 release_sock(sk); in sock_set_reuseaddr()
714 void sock_set_reuseport(struct sock *sk) in sock_set_reuseport() argument
716 lock_sock(sk); in sock_set_reuseport()
717 sk->sk_reuseport = true; in sock_set_reuseport()
718 release_sock(sk); in sock_set_reuseport()
722 void sock_no_linger(struct sock *sk) in sock_no_linger() argument
724 lock_sock(sk); in sock_no_linger()
725 sk->sk_lingertime = 0; in sock_no_linger()
726 sock_set_flag(sk, SOCK_LINGER); in sock_no_linger()
727 release_sock(sk); in sock_no_linger()
731 void sock_set_priority(struct sock *sk, u32 priority) in sock_set_priority() argument
733 lock_sock(sk); in sock_set_priority()
734 sk->sk_priority = priority; in sock_set_priority()
735 release_sock(sk); in sock_set_priority()
739 void sock_set_sndtimeo(struct sock *sk, s64 secs) in sock_set_sndtimeo() argument
741 lock_sock(sk); in sock_set_sndtimeo()
743 sk->sk_sndtimeo = secs * HZ; in sock_set_sndtimeo()
745 sk->sk_sndtimeo = MAX_SCHEDULE_TIMEOUT; in sock_set_sndtimeo()
746 release_sock(sk); in sock_set_sndtimeo()
750 static void __sock_set_timestamps(struct sock *sk, bool val, bool new, bool ns) in __sock_set_timestamps() argument
753 sock_valbool_flag(sk, SOCK_TSTAMP_NEW, new); in __sock_set_timestamps()
754 sock_valbool_flag(sk, SOCK_RCVTSTAMPNS, ns); in __sock_set_timestamps()
755 sock_set_flag(sk, SOCK_RCVTSTAMP); in __sock_set_timestamps()
756 sock_enable_timestamp(sk, SOCK_TIMESTAMP); in __sock_set_timestamps()
758 sock_reset_flag(sk, SOCK_RCVTSTAMP); in __sock_set_timestamps()
759 sock_reset_flag(sk, SOCK_RCVTSTAMPNS); in __sock_set_timestamps()
763 void sock_enable_timestamps(struct sock *sk) in sock_enable_timestamps() argument
765 lock_sock(sk); in sock_enable_timestamps()
766 __sock_set_timestamps(sk, true, false, true); in sock_enable_timestamps()
767 release_sock(sk); in sock_enable_timestamps()
771 void sock_set_keepalive(struct sock *sk) in sock_set_keepalive() argument
773 lock_sock(sk); in sock_set_keepalive()
774 if (sk->sk_prot->keepalive) in sock_set_keepalive()
775 sk->sk_prot->keepalive(sk, true); in sock_set_keepalive()
776 sock_valbool_flag(sk, SOCK_KEEPOPEN, true); in sock_set_keepalive()
777 release_sock(sk); in sock_set_keepalive()
781 static void __sock_set_rcvbuf(struct sock *sk, int val) in __sock_set_rcvbuf() argument
787 sk->sk_userlocks |= SOCK_RCVBUF_LOCK; in __sock_set_rcvbuf()
799 WRITE_ONCE(sk->sk_rcvbuf, max_t(int, val * 2, SOCK_MIN_RCVBUF)); in __sock_set_rcvbuf()
802 void sock_set_rcvbuf(struct sock *sk, int val) in sock_set_rcvbuf() argument
804 lock_sock(sk); in sock_set_rcvbuf()
805 __sock_set_rcvbuf(sk, val); in sock_set_rcvbuf()
806 release_sock(sk); in sock_set_rcvbuf()
810 static void __sock_set_mark(struct sock *sk, u32 val) in __sock_set_mark() argument
812 if (val != sk->sk_mark) { in __sock_set_mark()
813 sk->sk_mark = val; in __sock_set_mark()
814 sk_dst_reset(sk); in __sock_set_mark()
818 void sock_set_mark(struct sock *sk, u32 val) in sock_set_mark() argument
820 lock_sock(sk); in sock_set_mark()
821 __sock_set_mark(sk, val); in sock_set_mark()
822 release_sock(sk); in sock_set_mark()
835 struct sock *sk = sock->sk; in sock_setsockopt() local
846 return sock_setbindtodevice(sk, optval, optlen); in sock_setsockopt()
856 lock_sock(sk); in sock_setsockopt()
863 sock_valbool_flag(sk, SOCK_DBG, valbool); in sock_setsockopt()
866 sk->sk_reuse = (valbool ? SK_CAN_REUSE : SK_NO_REUSE); in sock_setsockopt()
869 sk->sk_reuseport = valbool; in sock_setsockopt()
878 sock_valbool_flag(sk, SOCK_LOCALROUTE, valbool); in sock_setsockopt()
879 sk_dst_reset(sk); in sock_setsockopt()
882 sock_valbool_flag(sk, SOCK_BROADCAST, valbool); in sock_setsockopt()
896 sk->sk_userlocks |= SOCK_SNDBUF_LOCK; in sock_setsockopt()
897 WRITE_ONCE(sk->sk_sndbuf, in sock_setsockopt()
900 sk->sk_write_space(sk); in sock_setsockopt()
922 __sock_set_rcvbuf(sk, min_t(u32, val, READ_ONCE(sysctl_rmem_max))); in sock_setsockopt()
934 __sock_set_rcvbuf(sk, max(val, 0)); in sock_setsockopt()
938 if (sk->sk_prot->keepalive) in sock_setsockopt()
939 sk->sk_prot->keepalive(sk, valbool); in sock_setsockopt()
940 sock_valbool_flag(sk, SOCK_KEEPOPEN, valbool); in sock_setsockopt()
944 sock_valbool_flag(sk, SOCK_URGINLINE, valbool); in sock_setsockopt()
948 sk->sk_no_check_tx = valbool; in sock_setsockopt()
953 ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) in sock_setsockopt()
954 sk->sk_priority = val; in sock_setsockopt()
969 sock_reset_flag(sk, SOCK_LINGER); in sock_setsockopt()
973 sk->sk_lingertime = MAX_SCHEDULE_TIMEOUT; in sock_setsockopt()
976 sk->sk_lingertime = (unsigned int)ling.l_linger * HZ; in sock_setsockopt()
977 sock_set_flag(sk, SOCK_LINGER); in sock_setsockopt()
992 __sock_set_timestamps(sk, valbool, false, false); in sock_setsockopt()
995 __sock_set_timestamps(sk, valbool, true, false); in sock_setsockopt()
998 __sock_set_timestamps(sk, valbool, false, true); in sock_setsockopt()
1001 __sock_set_timestamps(sk, valbool, true, true); in sock_setsockopt()
1011 !(sk->sk_tsflags & SOF_TIMESTAMPING_OPT_ID)) { in sock_setsockopt()
1012 if (sk->sk_protocol == IPPROTO_TCP && in sock_setsockopt()
1013 sk->sk_type == SOCK_STREAM) { in sock_setsockopt()
1014 if ((1 << sk->sk_state) & in sock_setsockopt()
1019 sk->sk_tskey = tcp_sk(sk)->snd_una; in sock_setsockopt()
1021 sk->sk_tskey = 0; in sock_setsockopt()
1031 sk->sk_tsflags = val; in sock_setsockopt()
1032 sock_valbool_flag(sk, SOCK_TSTAMP_NEW, optname == SO_TIMESTAMPING_NEW); in sock_setsockopt()
1035 sock_enable_timestamp(sk, in sock_setsockopt()
1038 sock_disable_timestamp(sk, in sock_setsockopt()
1046 ret = sock->ops->set_rcvlowat(sk, val); in sock_setsockopt()
1048 WRITE_ONCE(sk->sk_rcvlowat, val ? : 1); in sock_setsockopt()
1053 ret = sock_set_timeout(&sk->sk_rcvtimeo, optval, in sock_setsockopt()
1059 ret = sock_set_timeout(&sk->sk_sndtimeo, optval, in sock_setsockopt()
1068 ret = sk_attach_filter(&fprog, sk); in sock_setsockopt()
1080 ret = sk_attach_bpf(ufd, sk); in sock_setsockopt()
1089 ret = sk_reuseport_attach_filter(&fprog, sk); in sock_setsockopt()
1101 ret = sk_reuseport_attach_bpf(ufd, sk); in sock_setsockopt()
1106 ret = reuseport_detach_prog(sk); in sock_setsockopt()
1110 ret = sk_detach_filter(sk); in sock_setsockopt()
1114 if (sock_flag(sk, SOCK_FILTER_LOCKED) && !valbool) in sock_setsockopt()
1117 sock_valbool_flag(sk, SOCK_FILTER_LOCKED, valbool); in sock_setsockopt()
1127 if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) { in sock_setsockopt()
1132 __sock_set_mark(sk, val); in sock_setsockopt()
1136 sock_valbool_flag(sk, SOCK_RXQ_OVFL, valbool); in sock_setsockopt()
1140 sock_valbool_flag(sk, SOCK_WIFI_STATUS, valbool); in sock_setsockopt()
1145 ret = sock->ops->set_peek_off(sk, val); in sock_setsockopt()
1151 sock_valbool_flag(sk, SOCK_NOFCS, valbool); in sock_setsockopt()
1155 sock_valbool_flag(sk, SOCK_SELECT_ERR_QUEUE, valbool); in sock_setsockopt()
1161 if ((val > sk->sk_ll_usec) && !capable(CAP_NET_ADMIN)) in sock_setsockopt()
1167 WRITE_ONCE(sk->sk_ll_usec, val); in sock_setsockopt()
1183 cmpxchg(&sk->sk_pacing_status, in sock_setsockopt()
1186 sk->sk_max_pacing_rate = ulval; in sock_setsockopt()
1187 sk->sk_pacing_rate = min(sk->sk_pacing_rate, ulval); in sock_setsockopt()
1191 WRITE_ONCE(sk->sk_incoming_cpu, val); in sock_setsockopt()
1196 dst_negative_advice(sk); in sock_setsockopt()
1200 if (sk->sk_family == PF_INET || sk->sk_family == PF_INET6) { in sock_setsockopt()
1201 if (!((sk->sk_type == SOCK_STREAM && in sock_setsockopt()
1202 sk->sk_protocol == IPPROTO_TCP) || in sock_setsockopt()
1203 (sk->sk_type == SOCK_DGRAM && in sock_setsockopt()
1204 sk->sk_protocol == IPPROTO_UDP))) in sock_setsockopt()
1206 } else if (sk->sk_family != PF_RDS) { in sock_setsockopt()
1213 sock_valbool_flag(sk, SOCK_ZEROCOPY, valbool); in sock_setsockopt()
1233 !ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) { in sock_setsockopt()
1237 sock_valbool_flag(sk, SOCK_TXTIME, true); in sock_setsockopt()
1238 sk->sk_clockid = sk_txtime.clockid; in sock_setsockopt()
1239 sk->sk_txtime_deadline_mode = in sock_setsockopt()
1241 sk->sk_txtime_report_errors = in sock_setsockopt()
1246 ret = sock_bindtoindex_locked(sk, val); in sock_setsockopt()
1253 release_sock(sk); in sock_setsockopt()
1258 static const struct cred *sk_get_peer_cred(struct sock *sk) in sk_get_peer_cred() argument
1262 spin_lock(&sk->sk_peer_lock); in sk_get_peer_cred()
1263 cred = get_cred(sk->sk_peer_cred); in sk_get_peer_cred()
1264 spin_unlock(&sk->sk_peer_lock); in sk_get_peer_cred()
1297 struct sock *sk = sock->sk; in sock_getsockopt() local
1322 v.val = sock_flag(sk, SOCK_DBG); in sock_getsockopt()
1326 v.val = sock_flag(sk, SOCK_LOCALROUTE); in sock_getsockopt()
1330 v.val = sock_flag(sk, SOCK_BROADCAST); in sock_getsockopt()
1334 v.val = sk->sk_sndbuf; in sock_getsockopt()
1338 v.val = sk->sk_rcvbuf; in sock_getsockopt()
1342 v.val = sk->sk_reuse; in sock_getsockopt()
1346 v.val = sk->sk_reuseport; in sock_getsockopt()
1350 v.val = sock_flag(sk, SOCK_KEEPOPEN); in sock_getsockopt()
1354 v.val = sk->sk_type; in sock_getsockopt()
1358 v.val = sk->sk_protocol; in sock_getsockopt()
1362 v.val = sk->sk_family; in sock_getsockopt()
1366 v.val = -sock_error(sk); in sock_getsockopt()
1368 v.val = xchg(&sk->sk_err_soft, 0); in sock_getsockopt()
1372 v.val = sock_flag(sk, SOCK_URGINLINE); in sock_getsockopt()
1376 v.val = sk->sk_no_check_tx; in sock_getsockopt()
1380 v.val = sk->sk_priority; in sock_getsockopt()
1385 v.ling.l_onoff = sock_flag(sk, SOCK_LINGER); in sock_getsockopt()
1386 v.ling.l_linger = sk->sk_lingertime / HZ; in sock_getsockopt()
1393 v.val = sock_flag(sk, SOCK_RCVTSTAMP) && in sock_getsockopt()
1394 !sock_flag(sk, SOCK_TSTAMP_NEW) && in sock_getsockopt()
1395 !sock_flag(sk, SOCK_RCVTSTAMPNS); in sock_getsockopt()
1399 v.val = sock_flag(sk, SOCK_RCVTSTAMPNS) && !sock_flag(sk, SOCK_TSTAMP_NEW); in sock_getsockopt()
1403 v.val = sock_flag(sk, SOCK_RCVTSTAMP) && sock_flag(sk, SOCK_TSTAMP_NEW); in sock_getsockopt()
1407 v.val = sock_flag(sk, SOCK_RCVTSTAMPNS) && sock_flag(sk, SOCK_TSTAMP_NEW); in sock_getsockopt()
1411 v.val = sk->sk_tsflags; in sock_getsockopt()
1416 lv = sock_get_timeout(sk->sk_rcvtimeo, &v, SO_RCVTIMEO_OLD == optname); in sock_getsockopt()
1421 lv = sock_get_timeout(sk->sk_sndtimeo, &v, SO_SNDTIMEO_OLD == optname); in sock_getsockopt()
1425 v.val = sk->sk_rcvlowat; in sock_getsockopt()
1442 spin_lock(&sk->sk_peer_lock); in sock_getsockopt()
1443 cred_to_ucred(sk->sk_peer_pid, sk->sk_peer_cred, &peercred); in sock_getsockopt()
1444 spin_unlock(&sk->sk_peer_lock); in sock_getsockopt()
1456 cred = sk_get_peer_cred(sk); in sock_getsockopt()
1493 v.val = sk->sk_state == TCP_LISTEN; in sock_getsockopt()
1504 v.val = sk->sk_mark; in sock_getsockopt()
1508 v.val = sock_flag(sk, SOCK_RXQ_OVFL); in sock_getsockopt()
1512 v.val = sock_flag(sk, SOCK_WIFI_STATUS); in sock_getsockopt()
1519 v.val = sk->sk_peek_off; in sock_getsockopt()
1522 v.val = sock_flag(sk, SOCK_NOFCS); in sock_getsockopt()
1526 return sock_getbindtodevice(sk, optval, optlen, len); in sock_getsockopt()
1529 len = sk_get_filter(sk, (struct sock_filter __user *)optval, len); in sock_getsockopt()
1536 v.val = sock_flag(sk, SOCK_FILTER_LOCKED); in sock_getsockopt()
1544 v.val = sock_flag(sk, SOCK_SELECT_ERR_QUEUE); in sock_getsockopt()
1549 v.val = sk->sk_ll_usec; in sock_getsockopt()
1556 v.ulval = sk->sk_max_pacing_rate; in sock_getsockopt()
1559 v.val = min_t(unsigned long, sk->sk_max_pacing_rate, ~0U); in sock_getsockopt()
1564 v.val = READ_ONCE(sk->sk_incoming_cpu); in sock_getsockopt()
1571 sk_get_meminfo(sk, meminfo); in sock_getsockopt()
1582 v.val = READ_ONCE(sk->sk_napi_id); in sock_getsockopt()
1595 v.val64 = sock_gen_cookie(sk); in sock_getsockopt()
1599 v.val = sock_flag(sk, SOCK_ZEROCOPY); in sock_getsockopt()
1604 v.txtime.clockid = sk->sk_clockid; in sock_getsockopt()
1605 v.txtime.flags |= sk->sk_txtime_deadline_mode ? in sock_getsockopt()
1607 v.txtime.flags |= sk->sk_txtime_report_errors ? in sock_getsockopt()
1612 v.val = sk->sk_bound_dev_if; in sock_getsockopt()
1637 static inline void sock_lock_init(struct sock *sk) in sock_lock_init() argument
1639 if (sk->sk_kern_sock) in sock_lock_init()
1641 sk, in sock_lock_init()
1642 af_family_kern_slock_key_strings[sk->sk_family], in sock_lock_init()
1643 af_family_kern_slock_keys + sk->sk_family, in sock_lock_init()
1644 af_family_kern_key_strings[sk->sk_family], in sock_lock_init()
1645 af_family_kern_keys + sk->sk_family); in sock_lock_init()
1648 sk, in sock_lock_init()
1649 af_family_slock_key_strings[sk->sk_family], in sock_lock_init()
1650 af_family_slock_keys + sk->sk_family, in sock_lock_init()
1651 af_family_key_strings[sk->sk_family], in sock_lock_init()
1652 af_family_keys + sk->sk_family); in sock_lock_init()
1680 struct sock *sk; in sk_prot_alloc() local
1685 sk = kmem_cache_alloc(slab, priority & ~__GFP_ZERO); in sk_prot_alloc()
1686 if (!sk) in sk_prot_alloc()
1687 return sk; in sk_prot_alloc()
1689 sk_prot_clear_nulls(sk, prot->obj_size); in sk_prot_alloc()
1691 sk = kmalloc(prot->obj_size, priority); in sk_prot_alloc()
1693 if (sk != NULL) { in sk_prot_alloc()
1694 if (security_sk_alloc(sk, family, priority)) in sk_prot_alloc()
1699 sk_tx_queue_clear(sk); in sk_prot_alloc()
1702 return sk; in sk_prot_alloc()
1705 security_sk_free(sk); in sk_prot_alloc()
1708 kmem_cache_free(slab, sk); in sk_prot_alloc()
1710 kfree(sk); in sk_prot_alloc()
1714 static void sk_prot_free(struct proto *prot, struct sock *sk) in sk_prot_free() argument
1722 cgroup_sk_free(&sk->sk_cgrp_data); in sk_prot_free()
1723 mem_cgroup_sk_free(sk); in sk_prot_free()
1724 security_sk_free(sk); in sk_prot_free()
1726 kmem_cache_free(slab, sk); in sk_prot_free()
1728 kfree(sk); in sk_prot_free()
1743 struct sock *sk; in sk_alloc() local
1745 sk = sk_prot_alloc(prot, priority | __GFP_ZERO, family); in sk_alloc()
1746 if (sk) { in sk_alloc()
1747 sk->sk_family = family; in sk_alloc()
1752 sk->sk_prot = sk->sk_prot_creator = prot; in sk_alloc()
1753 sk->sk_kern_sock = kern; in sk_alloc()
1754 sock_lock_init(sk); in sk_alloc()
1755 sk->sk_net_refcnt = kern ? 0 : 1; in sk_alloc()
1756 if (likely(sk->sk_net_refcnt)) { in sk_alloc()
1761 sock_net_set(sk, net); in sk_alloc()
1762 refcount_set(&sk->sk_wmem_alloc, 1); in sk_alloc()
1764 mem_cgroup_sk_alloc(sk); in sk_alloc()
1765 cgroup_sk_alloc(&sk->sk_cgrp_data); in sk_alloc()
1766 sock_update_classid(&sk->sk_cgrp_data); in sk_alloc()
1767 sock_update_netprioidx(&sk->sk_cgrp_data); in sk_alloc()
1768 sk_tx_queue_clear(sk); in sk_alloc()
1771 return sk; in sk_alloc()
1780 struct sock *sk = container_of(head, struct sock, sk_rcu); in __sk_destruct() local
1783 if (sk->sk_destruct) in __sk_destruct()
1784 sk->sk_destruct(sk); in __sk_destruct()
1786 filter = rcu_dereference_check(sk->sk_filter, in __sk_destruct()
1787 refcount_read(&sk->sk_wmem_alloc) == 0); in __sk_destruct()
1789 sk_filter_uncharge(sk, filter); in __sk_destruct()
1790 RCU_INIT_POINTER(sk->sk_filter, NULL); in __sk_destruct()
1793 sock_disable_timestamp(sk, SK_FLAGS_TIMESTAMP); in __sk_destruct()
1796 bpf_sk_storage_free(sk); in __sk_destruct()
1799 if (atomic_read(&sk->sk_omem_alloc)) in __sk_destruct()
1801 __func__, atomic_read(&sk->sk_omem_alloc)); in __sk_destruct()
1803 if (sk->sk_frag.page) { in __sk_destruct()
1804 put_page(sk->sk_frag.page); in __sk_destruct()
1805 sk->sk_frag.page = NULL; in __sk_destruct()
1809 put_cred(sk->sk_peer_cred); in __sk_destruct()
1810 put_pid(sk->sk_peer_pid); in __sk_destruct()
1812 if (likely(sk->sk_net_refcnt)) in __sk_destruct()
1813 put_net(sock_net(sk)); in __sk_destruct()
1814 sk_prot_free(sk->sk_prot_creator, sk); in __sk_destruct()
1817 void sk_destruct(struct sock *sk) in sk_destruct() argument
1819 bool use_call_rcu = sock_flag(sk, SOCK_RCU_FREE); in sk_destruct()
1821 if (rcu_access_pointer(sk->sk_reuseport_cb)) { in sk_destruct()
1822 reuseport_detach_sock(sk); in sk_destruct()
1827 call_rcu(&sk->sk_rcu, __sk_destruct); in sk_destruct()
1829 __sk_destruct(&sk->sk_rcu); in sk_destruct()
1832 static void __sk_free(struct sock *sk) in __sk_free() argument
1834 if (likely(sk->sk_net_refcnt)) in __sk_free()
1835 sock_inuse_add(sock_net(sk), -1); in __sk_free()
1837 if (unlikely(sk->sk_net_refcnt && sock_diag_has_destroy_listeners(sk))) in __sk_free()
1838 sock_diag_broadcast_destroy(sk); in __sk_free()
1840 sk_destruct(sk); in __sk_free()
1843 void sk_free(struct sock *sk) in sk_free() argument
1850 if (refcount_dec_and_test(&sk->sk_wmem_alloc)) in sk_free()
1851 __sk_free(sk); in sk_free()
1855 static void sk_init_common(struct sock *sk) in sk_init_common() argument
1857 skb_queue_head_init(&sk->sk_receive_queue); in sk_init_common()
1858 skb_queue_head_init(&sk->sk_write_queue); in sk_init_common()
1859 skb_queue_head_init(&sk->sk_error_queue); in sk_init_common()
1861 rwlock_init(&sk->sk_callback_lock); in sk_init_common()
1862 lockdep_set_class_and_name(&sk->sk_receive_queue.lock, in sk_init_common()
1863 af_rlock_keys + sk->sk_family, in sk_init_common()
1864 af_family_rlock_key_strings[sk->sk_family]); in sk_init_common()
1865 lockdep_set_class_and_name(&sk->sk_write_queue.lock, in sk_init_common()
1866 af_wlock_keys + sk->sk_family, in sk_init_common()
1867 af_family_wlock_key_strings[sk->sk_family]); in sk_init_common()
1868 lockdep_set_class_and_name(&sk->sk_error_queue.lock, in sk_init_common()
1869 af_elock_keys + sk->sk_family, in sk_init_common()
1870 af_family_elock_key_strings[sk->sk_family]); in sk_init_common()
1871 lockdep_set_class_and_name(&sk->sk_callback_lock, in sk_init_common()
1872 af_callback_keys + sk->sk_family, in sk_init_common()
1873 af_family_clock_key_strings[sk->sk_family]); in sk_init_common()
1883 struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority) in sk_clone_lock() argument
1885 struct proto *prot = READ_ONCE(sk->sk_prot); in sk_clone_lock()
1890 newsk = sk_prot_alloc(prot, priority, sk->sk_family); in sk_clone_lock()
1894 sock_copy(newsk, sk); in sk_clone_lock()
1923 newsk->sk_userlocks = sk->sk_userlocks & ~SOCK_BINDPORT_LOCK; in sk_clone_lock()
1934 filter = rcu_dereference(sk->sk_filter); in sk_clone_lock()
1944 if (unlikely(!is_charged || xfrm_sk_clone_policy(newsk, sk))) { in sk_clone_lock()
1957 if (bpf_sk_storage_clone(sk, newsk)) { in sk_clone_lock()
1998 if (sock_needs_netstamp(sk) && newsk->sk_flags & SK_FLAGS_TIMESTAMP) in sk_clone_lock()
2005 void sk_free_unlock_clone(struct sock *sk) in sk_free_unlock_clone() argument
2009 sk->sk_destruct = NULL; in sk_free_unlock_clone()
2010 bh_unlock_sock(sk); in sk_free_unlock_clone()
2011 sk_free(sk); in sk_free_unlock_clone()
2015 void sk_setup_caps(struct sock *sk, struct dst_entry *dst) in sk_setup_caps() argument
2019 sk_dst_set(sk, dst); in sk_setup_caps()
2020 sk->sk_route_caps = dst->dev->features | sk->sk_route_forced_caps; in sk_setup_caps()
2021 if (sk->sk_route_caps & NETIF_F_GSO) in sk_setup_caps()
2022 sk->sk_route_caps |= NETIF_F_GSO_SOFTWARE; in sk_setup_caps()
2023 sk->sk_route_caps &= ~sk->sk_route_nocaps; in sk_setup_caps()
2024 if (sk_can_gso(sk)) { in sk_setup_caps()
2026 sk->sk_route_caps &= ~NETIF_F_GSO_MASK; in sk_setup_caps()
2028 sk->sk_route_caps |= NETIF_F_SG | NETIF_F_HW_CSUM; in sk_setup_caps()
2029 sk->sk_gso_max_size = dst->dev->gso_max_size; in sk_setup_caps()
2033 sk->sk_gso_max_segs = max_segs; in sk_setup_caps()
2047 struct sock *sk = skb->sk; in sock_wfree() local
2050 if (!sock_flag(sk, SOCK_USE_WRITE_QUEUE)) { in sock_wfree()
2055 WARN_ON(refcount_sub_and_test(len - 1, &sk->sk_wmem_alloc)); in sock_wfree()
2056 sk->sk_write_space(sk); in sock_wfree()
2063 if (refcount_sub_and_test(len, &sk->sk_wmem_alloc)) in sock_wfree()
2064 __sk_free(sk); in sock_wfree()
2073 struct sock *sk = skb->sk; in __sock_wfree() local
2075 if (refcount_sub_and_test(skb->truesize, &sk->sk_wmem_alloc)) in __sock_wfree()
2076 __sk_free(sk); in __sock_wfree()
2079 void skb_set_owner_w(struct sk_buff *skb, struct sock *sk) in skb_set_owner_w() argument
2082 skb->sk = sk; in skb_set_owner_w()
2084 if (unlikely(!sk_fullsock(sk))) { in skb_set_owner_w()
2086 sock_hold(sk); in skb_set_owner_w()
2091 skb_set_hash_from_sk(skb, sk); in skb_set_owner_w()
2097 refcount_add(skb->truesize, &sk->sk_wmem_alloc); in skb_set_owner_w()
2125 if (can_skb_orphan_partial(skb) && skb_set_owner_sk_safe(skb, skb->sk)) in skb_orphan_partial()
2137 struct sock *sk = skb->sk; in sock_rfree() local
2140 atomic_sub(len, &sk->sk_rmem_alloc); in sock_rfree()
2141 sk_mem_uncharge(sk, len); in sock_rfree()
2151 sock_put(skb->sk); in sock_efree()
2161 if (sk_is_refcounted(skb->sk)) in sock_pfree()
2162 sock_gen_put(skb->sk); in sock_pfree()
2167 kuid_t sock_i_uid(struct sock *sk) in sock_i_uid() argument
2171 read_lock_bh(&sk->sk_callback_lock); in sock_i_uid()
2172 uid = sk->sk_socket ? SOCK_INODE(sk->sk_socket)->i_uid : GLOBAL_ROOT_UID; in sock_i_uid()
2173 read_unlock_bh(&sk->sk_callback_lock); in sock_i_uid()
2178 unsigned long sock_i_ino(struct sock *sk) in sock_i_ino() argument
2182 read_lock_bh(&sk->sk_callback_lock); in sock_i_ino()
2183 ino = sk->sk_socket ? SOCK_INODE(sk->sk_socket)->i_ino : 0; in sock_i_ino()
2184 read_unlock_bh(&sk->sk_callback_lock); in sock_i_ino()
2192 struct sk_buff *sock_wmalloc(struct sock *sk, unsigned long size, int force, in sock_wmalloc() argument
2196 refcount_read(&sk->sk_wmem_alloc) < READ_ONCE(sk->sk_sndbuf)) { in sock_wmalloc()
2200 skb_set_owner_w(skb, sk); in sock_wmalloc()
2210 struct sock *sk = skb->sk; in sock_ofree() local
2212 atomic_sub(skb->truesize, &sk->sk_omem_alloc); in sock_ofree()
2215 struct sk_buff *sock_omalloc(struct sock *sk, unsigned long size, in sock_omalloc() argument
2221 if (atomic_read(&sk->sk_omem_alloc) + SKB_TRUESIZE(size) > in sock_omalloc()
2229 atomic_add(skb->truesize, &sk->sk_omem_alloc); in sock_omalloc()
2230 skb->sk = sk; in sock_omalloc()
2238 void *sock_kmalloc(struct sock *sk, int size, gfp_t priority) in sock_kmalloc() argument
2243 atomic_read(&sk->sk_omem_alloc) + size < optmem_max) { in sock_kmalloc()
2248 atomic_add(size, &sk->sk_omem_alloc); in sock_kmalloc()
2252 atomic_sub(size, &sk->sk_omem_alloc); in sock_kmalloc()
2262 static inline void __sock_kfree_s(struct sock *sk, void *mem, int size, in __sock_kfree_s() argument
2271 atomic_sub(size, &sk->sk_omem_alloc); in __sock_kfree_s()
2274 void sock_kfree_s(struct sock *sk, void *mem, int size) in sock_kfree_s() argument
2276 __sock_kfree_s(sk, mem, size, false); in sock_kfree_s()
2280 void sock_kzfree_s(struct sock *sk, void *mem, int size) in sock_kzfree_s() argument
2282 __sock_kfree_s(sk, mem, size, true); in sock_kzfree_s()
2289 static long sock_wait_for_wmem(struct sock *sk, long timeo) in sock_wait_for_wmem() argument
2293 sk_clear_bit(SOCKWQ_ASYNC_NOSPACE, sk); in sock_wait_for_wmem()
2299 set_bit(SOCK_NOSPACE, &sk->sk_socket->flags); in sock_wait_for_wmem()
2300 prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); in sock_wait_for_wmem()
2301 if (refcount_read(&sk->sk_wmem_alloc) < READ_ONCE(sk->sk_sndbuf)) in sock_wait_for_wmem()
2303 if (sk->sk_shutdown & SEND_SHUTDOWN) in sock_wait_for_wmem()
2305 if (sk->sk_err) in sock_wait_for_wmem()
2309 finish_wait(sk_sleep(sk), &wait); in sock_wait_for_wmem()
2318 struct sk_buff *sock_alloc_send_pskb(struct sock *sk, unsigned long header_len, in sock_alloc_send_pskb() argument
2326 timeo = sock_sndtimeo(sk, noblock); in sock_alloc_send_pskb()
2328 err = sock_error(sk); in sock_alloc_send_pskb()
2333 if (sk->sk_shutdown & SEND_SHUTDOWN) in sock_alloc_send_pskb()
2336 if (sk_wmem_alloc_get(sk) < READ_ONCE(sk->sk_sndbuf)) in sock_alloc_send_pskb()
2339 sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk); in sock_alloc_send_pskb()
2340 set_bit(SOCK_NOSPACE, &sk->sk_socket->flags); in sock_alloc_send_pskb()
2346 timeo = sock_wait_for_wmem(sk, timeo); in sock_alloc_send_pskb()
2349 errcode, sk->sk_allocation); in sock_alloc_send_pskb()
2351 skb_set_owner_w(skb, sk); in sock_alloc_send_pskb()
2362 struct sk_buff *sock_alloc_send_skb(struct sock *sk, unsigned long size, in sock_alloc_send_skb() argument
2365 return sock_alloc_send_pskb(sk, size, 0, noblock, errcode, 0); in sock_alloc_send_skb()
2369 int __sock_cmsg_send(struct sock *sk, struct msghdr *msg, struct cmsghdr *cmsg, in __sock_cmsg_send() argument
2376 if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) in __sock_cmsg_send()
2394 if (!sock_flag(sk, SOCK_TXTIME)) in __sock_cmsg_send()
2411 int sock_cmsg_send(struct sock *sk, struct msghdr *msg, in sock_cmsg_send() argument
2422 ret = __sock_cmsg_send(sk, msg, cmsg, sockc); in sock_cmsg_send()
2430 static void sk_enter_memory_pressure(struct sock *sk) in sk_enter_memory_pressure() argument
2432 if (!sk->sk_prot->enter_memory_pressure) in sk_enter_memory_pressure()
2435 sk->sk_prot->enter_memory_pressure(sk); in sk_enter_memory_pressure()
2438 static void sk_leave_memory_pressure(struct sock *sk) in sk_leave_memory_pressure() argument
2440 if (sk->sk_prot->leave_memory_pressure) { in sk_leave_memory_pressure()
2441 sk->sk_prot->leave_memory_pressure(sk); in sk_leave_memory_pressure()
2443 unsigned long *memory_pressure = sk->sk_prot->memory_pressure; in sk_leave_memory_pressure()
2496 bool sk_page_frag_refill(struct sock *sk, struct page_frag *pfrag) in sk_page_frag_refill() argument
2498 if (likely(skb_page_frag_refill(32U, pfrag, sk->sk_allocation))) in sk_page_frag_refill()
2501 sk_enter_memory_pressure(sk); in sk_page_frag_refill()
2502 sk_stream_moderate_sndbuf(sk); in sk_page_frag_refill()
2507 static void __lock_sock(struct sock *sk) in __lock_sock() argument
2508 __releases(&sk->sk_lock.slock) in __lock_sock()
2509 __acquires(&sk->sk_lock.slock) in __lock_sock()
2514 prepare_to_wait_exclusive(&sk->sk_lock.wq, &wait, in __lock_sock()
2516 spin_unlock_bh(&sk->sk_lock.slock); in __lock_sock()
2518 spin_lock_bh(&sk->sk_lock.slock); in __lock_sock()
2519 if (!sock_owned_by_user(sk)) in __lock_sock()
2522 finish_wait(&sk->sk_lock.wq, &wait); in __lock_sock()
2525 void __release_sock(struct sock *sk) in __release_sock() argument
2526 __releases(&sk->sk_lock.slock) in __release_sock()
2527 __acquires(&sk->sk_lock.slock) in __release_sock()
2531 while ((skb = sk->sk_backlog.head) != NULL) { in __release_sock()
2532 sk->sk_backlog.head = sk->sk_backlog.tail = NULL; in __release_sock()
2534 spin_unlock_bh(&sk->sk_lock.slock); in __release_sock()
2541 sk_backlog_rcv(sk, skb); in __release_sock()
2548 spin_lock_bh(&sk->sk_lock.slock); in __release_sock()
2555 sk->sk_backlog.len = 0; in __release_sock()
2558 void __sk_flush_backlog(struct sock *sk) in __sk_flush_backlog() argument
2560 spin_lock_bh(&sk->sk_lock.slock); in __sk_flush_backlog()
2561 __release_sock(sk); in __sk_flush_backlog()
2562 spin_unlock_bh(&sk->sk_lock.slock); in __sk_flush_backlog()
2576 int sk_wait_data(struct sock *sk, long *timeo, const struct sk_buff *skb) in sk_wait_data() argument
2581 add_wait_queue(sk_sleep(sk), &wait); in sk_wait_data()
2582 sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk); in sk_wait_data()
2583 rc = sk_wait_event(sk, timeo, skb_peek_tail(&sk->sk_receive_queue) != skb, &wait); in sk_wait_data()
2584 sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk); in sk_wait_data()
2585 remove_wait_queue(sk_sleep(sk), &wait); in sk_wait_data()
2599 int __sk_mem_raise_allocated(struct sock *sk, int size, int amt, int kind) in __sk_mem_raise_allocated() argument
2601 struct proto *prot = sk->sk_prot; in __sk_mem_raise_allocated()
2602 long allocated = sk_memory_allocated_add(sk, amt); in __sk_mem_raise_allocated()
2605 if (mem_cgroup_sockets_enabled && sk->sk_memcg && in __sk_mem_raise_allocated()
2606 !(charged = mem_cgroup_charge_skmem(sk->sk_memcg, amt))) in __sk_mem_raise_allocated()
2610 if (allocated <= sk_prot_mem_limits(sk, 0)) { in __sk_mem_raise_allocated()
2611 sk_leave_memory_pressure(sk); in __sk_mem_raise_allocated()
2616 if (allocated > sk_prot_mem_limits(sk, 1)) in __sk_mem_raise_allocated()
2617 sk_enter_memory_pressure(sk); in __sk_mem_raise_allocated()
2620 if (allocated > sk_prot_mem_limits(sk, 2)) in __sk_mem_raise_allocated()
2625 if (atomic_read(&sk->sk_rmem_alloc) < sk_get_rmem0(sk, prot)) in __sk_mem_raise_allocated()
2629 int wmem0 = sk_get_wmem0(sk, prot); in __sk_mem_raise_allocated()
2631 if (sk->sk_type == SOCK_STREAM) { in __sk_mem_raise_allocated()
2632 if (sk->sk_wmem_queued < wmem0) in __sk_mem_raise_allocated()
2634 } else if (refcount_read(&sk->sk_wmem_alloc) < wmem0) { in __sk_mem_raise_allocated()
2639 if (sk_has_memory_pressure(sk)) { in __sk_mem_raise_allocated()
2642 if (!sk_under_memory_pressure(sk)) in __sk_mem_raise_allocated()
2644 alloc = sk_sockets_allocated_read_positive(sk); in __sk_mem_raise_allocated()
2645 if (sk_prot_mem_limits(sk, 2) > alloc * in __sk_mem_raise_allocated()
2646 sk_mem_pages(sk->sk_wmem_queued + in __sk_mem_raise_allocated()
2647 atomic_read(&sk->sk_rmem_alloc) + in __sk_mem_raise_allocated()
2648 sk->sk_forward_alloc)) in __sk_mem_raise_allocated()
2654 if (kind == SK_MEM_SEND && sk->sk_type == SOCK_STREAM) { in __sk_mem_raise_allocated()
2655 sk_stream_moderate_sndbuf(sk); in __sk_mem_raise_allocated()
2660 if (sk->sk_wmem_queued + size >= sk->sk_sndbuf) in __sk_mem_raise_allocated()
2665 trace_sock_exceed_buf_limit(sk, prot, allocated, kind); in __sk_mem_raise_allocated()
2667 sk_memory_allocated_sub(sk, amt); in __sk_mem_raise_allocated()
2669 if (mem_cgroup_sockets_enabled && sk->sk_memcg) in __sk_mem_raise_allocated()
2670 mem_cgroup_uncharge_skmem(sk->sk_memcg, amt); in __sk_mem_raise_allocated()
2686 int __sk_mem_schedule(struct sock *sk, int size, int kind) in __sk_mem_schedule() argument
2690 sk->sk_forward_alloc += amt << SK_MEM_QUANTUM_SHIFT; in __sk_mem_schedule()
2691 ret = __sk_mem_raise_allocated(sk, size, amt, kind); in __sk_mem_schedule()
2693 sk->sk_forward_alloc -= amt << SK_MEM_QUANTUM_SHIFT; in __sk_mem_schedule()
2705 void __sk_mem_reduce_allocated(struct sock *sk, int amount) in __sk_mem_reduce_allocated() argument
2707 sk_memory_allocated_sub(sk, amount); in __sk_mem_reduce_allocated()
2709 if (mem_cgroup_sockets_enabled && sk->sk_memcg) in __sk_mem_reduce_allocated()
2710 mem_cgroup_uncharge_skmem(sk->sk_memcg, amount); in __sk_mem_reduce_allocated()
2712 if (sk_under_memory_pressure(sk) && in __sk_mem_reduce_allocated()
2713 (sk_memory_allocated(sk) < sk_prot_mem_limits(sk, 0))) in __sk_mem_reduce_allocated()
2714 sk_leave_memory_pressure(sk); in __sk_mem_reduce_allocated()
2723 void __sk_mem_reclaim(struct sock *sk, int amount) in __sk_mem_reclaim() argument
2726 sk->sk_forward_alloc -= amount << SK_MEM_QUANTUM_SHIFT; in __sk_mem_reclaim()
2727 __sk_mem_reduce_allocated(sk, amount); in __sk_mem_reclaim()
2731 int sk_set_peek_off(struct sock *sk, int val) in sk_set_peek_off() argument
2733 sk->sk_peek_off = val; in sk_set_peek_off()
2802 int sock_no_sendmsg_locked(struct sock *sk, struct msghdr *m, size_t len) in sock_no_sendmsg_locked() argument
2838 sock_update_netprioidx(&sock->sk->sk_cgrp_data); in __receive_sock()
2839 sock_update_classid(&sock->sk->sk_cgrp_data); in __receive_sock()
2857 ssize_t sock_no_sendpage_locked(struct sock *sk, struct page *page, in sock_no_sendpage_locked() argument
2867 res = kernel_sendmsg_locked(sk, &msg, &iov, 1, size); in sock_no_sendpage_locked()
2877 static void sock_def_wakeup(struct sock *sk) in sock_def_wakeup() argument
2882 wq = rcu_dereference(sk->sk_wq); in sock_def_wakeup()
2888 static void sock_def_error_report(struct sock *sk) in sock_def_error_report() argument
2893 wq = rcu_dereference(sk->sk_wq); in sock_def_error_report()
2896 sk_wake_async(sk, SOCK_WAKE_IO, POLL_ERR); in sock_def_error_report()
2900 void sock_def_readable(struct sock *sk) in sock_def_readable() argument
2905 wq = rcu_dereference(sk->sk_wq); in sock_def_readable()
2909 sk_wake_async(sk, SOCK_WAKE_WAITD, POLL_IN); in sock_def_readable()
2913 static void sock_def_write_space(struct sock *sk) in sock_def_write_space() argument
2922 if ((refcount_read(&sk->sk_wmem_alloc) << 1) <= READ_ONCE(sk->sk_sndbuf)) { in sock_def_write_space()
2923 wq = rcu_dereference(sk->sk_wq); in sock_def_write_space()
2929 if (sock_writeable(sk)) in sock_def_write_space()
2930 sk_wake_async(sk, SOCK_WAKE_SPACE, POLL_OUT); in sock_def_write_space()
2936 static void sock_def_destruct(struct sock *sk) in sock_def_destruct() argument
2940 void sk_send_sigurg(struct sock *sk) in sk_send_sigurg() argument
2942 if (sk->sk_socket && sk->sk_socket->file) in sk_send_sigurg()
2943 if (send_sigurg(&sk->sk_socket->file->f_owner)) in sk_send_sigurg()
2944 sk_wake_async(sk, SOCK_WAKE_URG, POLL_PRI); in sk_send_sigurg()
2948 void sk_reset_timer(struct sock *sk, struct timer_list* timer, in sk_reset_timer() argument
2952 sock_hold(sk); in sk_reset_timer()
2956 void sk_stop_timer(struct sock *sk, struct timer_list* timer) in sk_stop_timer() argument
2959 __sock_put(sk); in sk_stop_timer()
2963 void sk_stop_timer_sync(struct sock *sk, struct timer_list *timer) in sk_stop_timer_sync() argument
2966 __sock_put(sk); in sk_stop_timer_sync()
2970 void sock_init_data_uid(struct socket *sock, struct sock *sk, kuid_t uid) in sock_init_data_uid() argument
2972 sk_init_common(sk); in sock_init_data_uid()
2973 sk->sk_send_head = NULL; in sock_init_data_uid()
2975 timer_setup(&sk->sk_timer, NULL, 0); in sock_init_data_uid()
2977 sk->sk_allocation = GFP_KERNEL; in sock_init_data_uid()
2978 sk->sk_rcvbuf = READ_ONCE(sysctl_rmem_default); in sock_init_data_uid()
2979 sk->sk_sndbuf = READ_ONCE(sysctl_wmem_default); in sock_init_data_uid()
2980 sk->sk_state = TCP_CLOSE; in sock_init_data_uid()
2981 sk_set_socket(sk, sock); in sock_init_data_uid()
2983 sock_set_flag(sk, SOCK_ZAPPED); in sock_init_data_uid()
2986 sk->sk_type = sock->type; in sock_init_data_uid()
2987 RCU_INIT_POINTER(sk->sk_wq, &sock->wq); in sock_init_data_uid()
2988 sock->sk = sk; in sock_init_data_uid()
2990 RCU_INIT_POINTER(sk->sk_wq, NULL); in sock_init_data_uid()
2992 sk->sk_uid = uid; in sock_init_data_uid()
2994 rwlock_init(&sk->sk_callback_lock); in sock_init_data_uid()
2995 if (sk->sk_kern_sock) in sock_init_data_uid()
2997 &sk->sk_callback_lock, in sock_init_data_uid()
2998 af_kern_callback_keys + sk->sk_family, in sock_init_data_uid()
2999 af_family_kern_clock_key_strings[sk->sk_family]); in sock_init_data_uid()
3002 &sk->sk_callback_lock, in sock_init_data_uid()
3003 af_callback_keys + sk->sk_family, in sock_init_data_uid()
3004 af_family_clock_key_strings[sk->sk_family]); in sock_init_data_uid()
3006 sk->sk_state_change = sock_def_wakeup; in sock_init_data_uid()
3007 sk->sk_data_ready = sock_def_readable; in sock_init_data_uid()
3008 sk->sk_write_space = sock_def_write_space; in sock_init_data_uid()
3009 sk->sk_error_report = sock_def_error_report; in sock_init_data_uid()
3010 sk->sk_destruct = sock_def_destruct; in sock_init_data_uid()
3012 sk->sk_frag.page = NULL; in sock_init_data_uid()
3013 sk->sk_frag.offset = 0; in sock_init_data_uid()
3014 sk->sk_peek_off = -1; in sock_init_data_uid()
3016 sk->sk_peer_pid = NULL; in sock_init_data_uid()
3017 sk->sk_peer_cred = NULL; in sock_init_data_uid()
3018 spin_lock_init(&sk->sk_peer_lock); in sock_init_data_uid()
3020 sk->sk_write_pending = 0; in sock_init_data_uid()
3021 sk->sk_rcvlowat = 1; in sock_init_data_uid()
3022 sk->sk_rcvtimeo = MAX_SCHEDULE_TIMEOUT; in sock_init_data_uid()
3023 sk->sk_sndtimeo = MAX_SCHEDULE_TIMEOUT; in sock_init_data_uid()
3025 sk->sk_stamp = SK_DEFAULT_STAMP; in sock_init_data_uid()
3027 seqlock_init(&sk->sk_stamp_seq); in sock_init_data_uid()
3029 atomic_set(&sk->sk_zckey, 0); in sock_init_data_uid()
3032 sk->sk_napi_id = 0; in sock_init_data_uid()
3033 sk->sk_ll_usec = READ_ONCE(sysctl_net_busy_read); in sock_init_data_uid()
3036 sk->sk_max_pacing_rate = ~0UL; in sock_init_data_uid()
3037 sk->sk_pacing_rate = ~0UL; in sock_init_data_uid()
3038 WRITE_ONCE(sk->sk_pacing_shift, 10); in sock_init_data_uid()
3039 sk->sk_incoming_cpu = -1; in sock_init_data_uid()
3041 sk_rx_queue_clear(sk); in sock_init_data_uid()
3047 refcount_set(&sk->sk_refcnt, 1); in sock_init_data_uid()
3048 atomic_set(&sk->sk_drops, 0); in sock_init_data_uid()
3052 void sock_init_data(struct socket *sock, struct sock *sk) in sock_init_data() argument
3056 make_kuid(sock_net(sk)->user_ns, 0); in sock_init_data()
3058 sock_init_data_uid(sock, sk, uid); in sock_init_data()
3062 void lock_sock_nested(struct sock *sk, int subclass) in lock_sock_nested() argument
3065 spin_lock_bh(&sk->sk_lock.slock); in lock_sock_nested()
3066 if (sk->sk_lock.owned) in lock_sock_nested()
3067 __lock_sock(sk); in lock_sock_nested()
3068 sk->sk_lock.owned = 1; in lock_sock_nested()
3069 spin_unlock(&sk->sk_lock.slock); in lock_sock_nested()
3073 mutex_acquire(&sk->sk_lock.dep_map, subclass, 0, _RET_IP_); in lock_sock_nested()
3078 void release_sock(struct sock *sk) in release_sock() argument
3080 spin_lock_bh(&sk->sk_lock.slock); in release_sock()
3081 if (sk->sk_backlog.tail) in release_sock()
3082 __release_sock(sk); in release_sock()
3087 if (sk->sk_prot->release_cb) in release_sock()
3088 sk->sk_prot->release_cb(sk); in release_sock()
3090 sock_release_ownership(sk); in release_sock()
3091 if (waitqueue_active(&sk->sk_lock.wq)) in release_sock()
3092 wake_up(&sk->sk_lock.wq); in release_sock()
3093 spin_unlock_bh(&sk->sk_lock.slock); in release_sock()
3110 bool lock_sock_fast(struct sock *sk) in lock_sock_fast() argument
3113 spin_lock_bh(&sk->sk_lock.slock); in lock_sock_fast()
3115 if (!sk->sk_lock.owned) in lock_sock_fast()
3121 __lock_sock(sk); in lock_sock_fast()
3122 sk->sk_lock.owned = 1; in lock_sock_fast()
3123 spin_unlock(&sk->sk_lock.slock); in lock_sock_fast()
3127 mutex_acquire(&sk->sk_lock.dep_map, 0, 0, _RET_IP_); in lock_sock_fast()
3136 struct sock *sk = sock->sk; in sock_gettstamp() local
3139 sock_enable_timestamp(sk, SOCK_TIMESTAMP); in sock_gettstamp()
3140 ts = ktime_to_timespec64(sock_read_timestamp(sk)); in sock_gettstamp()
3145 sock_write_timestamp(sk, kt); in sock_gettstamp()
3172 void sock_enable_timestamp(struct sock *sk, enum sock_flags flag) in sock_enable_timestamp() argument
3174 if (!sock_flag(sk, flag)) { in sock_enable_timestamp()
3175 unsigned long previous_flags = sk->sk_flags; in sock_enable_timestamp()
3177 sock_set_flag(sk, flag); in sock_enable_timestamp()
3183 if (sock_needs_netstamp(sk) && in sock_enable_timestamp()
3189 int sock_recv_errqueue(struct sock *sk, struct msghdr *msg, int len, in sock_recv_errqueue() argument
3197 skb = sock_dequeue_err_skb(sk); in sock_recv_errqueue()
3210 sock_recv_timestamp(msg, sk, skb); in sock_recv_errqueue()
3235 struct sock *sk = sock->sk; in sock_common_getsockopt() local
3238 return READ_ONCE(sk->sk_prot)->getsockopt(sk, level, optname, optval, optlen); in sock_common_getsockopt()
3245 struct sock *sk = sock->sk; in sock_common_recvmsg() local
3249 err = sk->sk_prot->recvmsg(sk, msg, size, flags & MSG_DONTWAIT, in sock_common_recvmsg()
3263 struct sock *sk = sock->sk; in sock_common_setsockopt() local
3266 return READ_ONCE(sk->sk_prot)->setsockopt(sk, level, optname, optval, optlen); in sock_common_setsockopt()
3270 void sk_common_release(struct sock *sk) in sk_common_release() argument
3272 if (sk->sk_prot->destroy) in sk_common_release()
3273 sk->sk_prot->destroy(sk); in sk_common_release()
3283 sk->sk_prot->unhash(sk); in sk_common_release()
3297 sock_orphan(sk); in sk_common_release()
3299 xfrm_sk_free_policy(sk); in sk_common_release()
3301 sk_refcnt_debug_release(sk); in sk_common_release()
3303 sock_put(sk); in sk_common_release()
3307 void sk_get_meminfo(const struct sock *sk, u32 *mem) in sk_get_meminfo() argument
3311 mem[SK_MEMINFO_RMEM_ALLOC] = sk_rmem_alloc_get(sk); in sk_get_meminfo()
3312 mem[SK_MEMINFO_RCVBUF] = READ_ONCE(sk->sk_rcvbuf); in sk_get_meminfo()
3313 mem[SK_MEMINFO_WMEM_ALLOC] = sk_wmem_alloc_get(sk); in sk_get_meminfo()
3314 mem[SK_MEMINFO_SNDBUF] = READ_ONCE(sk->sk_sndbuf); in sk_get_meminfo()
3315 mem[SK_MEMINFO_FWD_ALLOC] = sk->sk_forward_alloc; in sk_get_meminfo()
3316 mem[SK_MEMINFO_WMEM_QUEUED] = READ_ONCE(sk->sk_wmem_queued); in sk_get_meminfo()
3317 mem[SK_MEMINFO_OPTMEM] = atomic_read(&sk->sk_omem_alloc); in sk_get_meminfo()
3318 mem[SK_MEMINFO_BACKLOG] = READ_ONCE(sk->sk_backlog.len); in sk_get_meminfo()
3319 mem[SK_MEMINFO_DROPS] = atomic_read(&sk->sk_drops); in sk_get_meminfo()
3708 struct sock *sk = p; in sk_busy_loop_end() local
3710 return !skb_queue_empty_lockless(&sk->sk_receive_queue) || in sk_busy_loop_end()
3711 sk_busy_loop_timeout(sk, start_time); in sk_busy_loop_end()
3716 int sock_bind_add(struct sock *sk, struct sockaddr *addr, int addr_len) in sock_bind_add() argument
3718 if (!sk->sk_prot->bind_add) in sock_bind_add()
3720 return sk->sk_prot->bind_add(sk, addr, addr_len); in sock_bind_add()