Lines Matching refs:sk
159 bool sk_ns_capable(const struct sock *sk, in sk_ns_capable() argument
162 return file_ns_capable(sk->sk_socket->file, user_ns, cap) && in sk_ns_capable()
176 bool sk_capable(const struct sock *sk, int cap) in sk_capable() argument
178 return sk_ns_capable(sk, &init_user_ns, cap); in sk_capable()
191 bool sk_net_capable(const struct sock *sk, int cap) in sk_net_capable() argument
193 return sk_ns_capable(sk, sock_net(sk)->user_ns, cap); in sk_net_capable()
296 void sk_set_memalloc(struct sock *sk) in sk_set_memalloc() argument
298 sock_set_flag(sk, SOCK_MEMALLOC); in sk_set_memalloc()
299 sk->sk_allocation |= __GFP_MEMALLOC; in sk_set_memalloc()
304 void sk_clear_memalloc(struct sock *sk) in sk_clear_memalloc() argument
306 sock_reset_flag(sk, SOCK_MEMALLOC); in sk_clear_memalloc()
307 sk->sk_allocation &= ~__GFP_MEMALLOC; in sk_clear_memalloc()
317 sk_mem_reclaim(sk); in sk_clear_memalloc()
321 int __sk_backlog_rcv(struct sock *sk, struct sk_buff *skb) in __sk_backlog_rcv() argument
327 BUG_ON(!sock_flag(sk, SOCK_MEMALLOC)); in __sk_backlog_rcv()
330 ret = sk->sk_backlog_rcv(sk, skb); in __sk_backlog_rcv()
337 void sk_error_report(struct sock *sk) in sk_error_report() argument
339 sk->sk_error_report(sk); in sk_error_report()
341 switch (sk->sk_family) { in sk_error_report()
345 trace_inet_sk_error_report(sk); in sk_error_report()
448 static bool sock_needs_netstamp(const struct sock *sk) in sock_needs_netstamp() argument
450 switch (sk->sk_family) { in sock_needs_netstamp()
459 static void sock_disable_timestamp(struct sock *sk, unsigned long flags) in sock_disable_timestamp() argument
461 if (sk->sk_flags & flags) { in sock_disable_timestamp()
462 sk->sk_flags &= ~flags; in sock_disable_timestamp()
463 if (sock_needs_netstamp(sk) && in sock_disable_timestamp()
464 !(sk->sk_flags & SK_FLAGS_TIMESTAMP)) in sock_disable_timestamp()
470 int __sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) in __sock_queue_rcv_skb() argument
473 struct sk_buff_head *list = &sk->sk_receive_queue; in __sock_queue_rcv_skb()
475 if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf) { in __sock_queue_rcv_skb()
476 atomic_inc(&sk->sk_drops); in __sock_queue_rcv_skb()
477 trace_sock_rcvqueue_full(sk, skb); in __sock_queue_rcv_skb()
481 if (!sk_rmem_schedule(sk, skb, skb->truesize)) { in __sock_queue_rcv_skb()
482 atomic_inc(&sk->sk_drops); in __sock_queue_rcv_skb()
487 skb_set_owner_r(skb, sk); in __sock_queue_rcv_skb()
495 sock_skb_set_dropcount(sk, skb); in __sock_queue_rcv_skb()
499 if (!sock_flag(sk, SOCK_DEAD)) in __sock_queue_rcv_skb()
500 sk->sk_data_ready(sk); in __sock_queue_rcv_skb()
505 int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) in sock_queue_rcv_skb() argument
509 err = sk_filter(sk, skb); in sock_queue_rcv_skb()
513 return __sock_queue_rcv_skb(sk, skb); in sock_queue_rcv_skb()
517 int __sk_receive_skb(struct sock *sk, struct sk_buff *skb, in __sk_receive_skb() argument
522 if (sk_filter_trim_cap(sk, skb, trim_cap)) in __sk_receive_skb()
527 if (sk_rcvqueues_full(sk, sk->sk_rcvbuf)) { in __sk_receive_skb()
528 atomic_inc(&sk->sk_drops); in __sk_receive_skb()
532 bh_lock_sock_nested(sk); in __sk_receive_skb()
534 bh_lock_sock(sk); in __sk_receive_skb()
535 if (!sock_owned_by_user(sk)) { in __sk_receive_skb()
539 mutex_acquire(&sk->sk_lock.dep_map, 0, 1, _RET_IP_); in __sk_receive_skb()
541 rc = sk_backlog_rcv(sk, skb); in __sk_receive_skb()
543 mutex_release(&sk->sk_lock.dep_map, _RET_IP_); in __sk_receive_skb()
544 } else if (sk_add_backlog(sk, skb, READ_ONCE(sk->sk_rcvbuf))) { in __sk_receive_skb()
545 bh_unlock_sock(sk); in __sk_receive_skb()
546 atomic_inc(&sk->sk_drops); in __sk_receive_skb()
550 bh_unlock_sock(sk); in __sk_receive_skb()
553 sock_put(sk); in __sk_receive_skb()
565 struct dst_entry *__sk_dst_check(struct sock *sk, u32 cookie) in __sk_dst_check() argument
567 struct dst_entry *dst = __sk_dst_get(sk); in __sk_dst_check()
572 sk_tx_queue_clear(sk); in __sk_dst_check()
573 sk->sk_dst_pending_confirm = 0; in __sk_dst_check()
574 RCU_INIT_POINTER(sk->sk_dst_cache, NULL); in __sk_dst_check()
583 struct dst_entry *sk_dst_check(struct sock *sk, u32 cookie) in sk_dst_check() argument
585 struct dst_entry *dst = sk_dst_get(sk); in sk_dst_check()
590 sk_dst_reset(sk); in sk_dst_check()
599 static int sock_bindtoindex_locked(struct sock *sk, int ifindex) in sock_bindtoindex_locked() argument
603 struct net *net = sock_net(sk); in sock_bindtoindex_locked()
607 if (sk->sk_bound_dev_if && !ns_capable(net->user_ns, CAP_NET_RAW)) in sock_bindtoindex_locked()
614 sk->sk_bound_dev_if = ifindex; in sock_bindtoindex_locked()
615 if (sk->sk_prot->rehash) in sock_bindtoindex_locked()
616 sk->sk_prot->rehash(sk); in sock_bindtoindex_locked()
617 sk_dst_reset(sk); in sock_bindtoindex_locked()
627 int sock_bindtoindex(struct sock *sk, int ifindex, bool lock_sk) in sock_bindtoindex() argument
632 lock_sock(sk); in sock_bindtoindex()
633 ret = sock_bindtoindex_locked(sk, ifindex); in sock_bindtoindex()
635 release_sock(sk); in sock_bindtoindex()
641 static int sock_setbindtodevice(struct sock *sk, sockptr_t optval, int optlen) in sock_setbindtodevice() argument
645 struct net *net = sock_net(sk); in sock_setbindtodevice()
680 return sock_bindtoindex(sk, index, true); in sock_setbindtodevice()
687 static int sock_getbindtodevice(struct sock *sk, char __user *optval, in sock_getbindtodevice() argument
692 struct net *net = sock_net(sk); in sock_getbindtodevice()
695 if (sk->sk_bound_dev_if == 0) { in sock_getbindtodevice()
704 ret = netdev_get_name(net, devname, sk->sk_bound_dev_if); in sock_getbindtodevice()
727 bool sk_mc_loop(struct sock *sk) in sk_mc_loop() argument
731 if (!sk) in sk_mc_loop()
733 switch (sk->sk_family) { in sk_mc_loop()
735 return inet_sk(sk)->mc_loop; in sk_mc_loop()
738 return inet6_sk(sk)->mc_loop; in sk_mc_loop()
746 void sock_set_reuseaddr(struct sock *sk) in sock_set_reuseaddr() argument
748 lock_sock(sk); in sock_set_reuseaddr()
749 sk->sk_reuse = SK_CAN_REUSE; in sock_set_reuseaddr()
750 release_sock(sk); in sock_set_reuseaddr()
754 void sock_set_reuseport(struct sock *sk) in sock_set_reuseport() argument
756 lock_sock(sk); in sock_set_reuseport()
757 sk->sk_reuseport = true; in sock_set_reuseport()
758 release_sock(sk); in sock_set_reuseport()
762 void sock_no_linger(struct sock *sk) in sock_no_linger() argument
764 lock_sock(sk); in sock_no_linger()
765 sk->sk_lingertime = 0; in sock_no_linger()
766 sock_set_flag(sk, SOCK_LINGER); in sock_no_linger()
767 release_sock(sk); in sock_no_linger()
771 void sock_set_priority(struct sock *sk, u32 priority) in sock_set_priority() argument
773 lock_sock(sk); in sock_set_priority()
774 sk->sk_priority = priority; in sock_set_priority()
775 release_sock(sk); in sock_set_priority()
779 void sock_set_sndtimeo(struct sock *sk, s64 secs) in sock_set_sndtimeo() argument
781 lock_sock(sk); in sock_set_sndtimeo()
783 sk->sk_sndtimeo = secs * HZ; in sock_set_sndtimeo()
785 sk->sk_sndtimeo = MAX_SCHEDULE_TIMEOUT; in sock_set_sndtimeo()
786 release_sock(sk); in sock_set_sndtimeo()
790 static void __sock_set_timestamps(struct sock *sk, bool val, bool new, bool ns) in __sock_set_timestamps() argument
793 sock_valbool_flag(sk, SOCK_TSTAMP_NEW, new); in __sock_set_timestamps()
794 sock_valbool_flag(sk, SOCK_RCVTSTAMPNS, ns); in __sock_set_timestamps()
795 sock_set_flag(sk, SOCK_RCVTSTAMP); in __sock_set_timestamps()
796 sock_enable_timestamp(sk, SOCK_TIMESTAMP); in __sock_set_timestamps()
798 sock_reset_flag(sk, SOCK_RCVTSTAMP); in __sock_set_timestamps()
799 sock_reset_flag(sk, SOCK_RCVTSTAMPNS); in __sock_set_timestamps()
803 void sock_enable_timestamps(struct sock *sk) in sock_enable_timestamps() argument
805 lock_sock(sk); in sock_enable_timestamps()
806 __sock_set_timestamps(sk, true, false, true); in sock_enable_timestamps()
807 release_sock(sk); in sock_enable_timestamps()
811 void sock_set_timestamp(struct sock *sk, int optname, bool valbool) in sock_set_timestamp() argument
815 __sock_set_timestamps(sk, valbool, false, false); in sock_set_timestamp()
818 __sock_set_timestamps(sk, valbool, true, false); in sock_set_timestamp()
821 __sock_set_timestamps(sk, valbool, false, true); in sock_set_timestamp()
824 __sock_set_timestamps(sk, valbool, true, true); in sock_set_timestamp()
829 static int sock_timestamping_bind_phc(struct sock *sk, int phc_index) in sock_timestamping_bind_phc() argument
831 struct net *net = sock_net(sk); in sock_timestamping_bind_phc()
837 if (sk->sk_bound_dev_if) in sock_timestamping_bind_phc()
838 dev = dev_get_by_index(net, sk->sk_bound_dev_if); in sock_timestamping_bind_phc()
859 sk->sk_bind_phc = phc_index; in sock_timestamping_bind_phc()
864 int sock_set_timestamping(struct sock *sk, int optname, in sock_set_timestamping() argument
874 !(sk->sk_tsflags & SOF_TIMESTAMPING_OPT_ID)) { in sock_set_timestamping()
875 if (sk->sk_protocol == IPPROTO_TCP && in sock_set_timestamping()
876 sk->sk_type == SOCK_STREAM) { in sock_set_timestamping()
877 if ((1 << sk->sk_state) & in sock_set_timestamping()
880 sk->sk_tskey = tcp_sk(sk)->snd_una; in sock_set_timestamping()
882 sk->sk_tskey = 0; in sock_set_timestamping()
891 ret = sock_timestamping_bind_phc(sk, timestamping.bind_phc); in sock_set_timestamping()
896 sk->sk_tsflags = val; in sock_set_timestamping()
897 sock_valbool_flag(sk, SOCK_TSTAMP_NEW, optname == SO_TIMESTAMPING_NEW); in sock_set_timestamping()
900 sock_enable_timestamp(sk, in sock_set_timestamping()
903 sock_disable_timestamp(sk, in sock_set_timestamping()
908 void sock_set_keepalive(struct sock *sk) in sock_set_keepalive() argument
910 lock_sock(sk); in sock_set_keepalive()
911 if (sk->sk_prot->keepalive) in sock_set_keepalive()
912 sk->sk_prot->keepalive(sk, true); in sock_set_keepalive()
913 sock_valbool_flag(sk, SOCK_KEEPOPEN, true); in sock_set_keepalive()
914 release_sock(sk); in sock_set_keepalive()
918 static void __sock_set_rcvbuf(struct sock *sk, int val) in __sock_set_rcvbuf() argument
924 sk->sk_userlocks |= SOCK_RCVBUF_LOCK; in __sock_set_rcvbuf()
936 WRITE_ONCE(sk->sk_rcvbuf, max_t(int, val * 2, SOCK_MIN_RCVBUF)); in __sock_set_rcvbuf()
939 void sock_set_rcvbuf(struct sock *sk, int val) in sock_set_rcvbuf() argument
941 lock_sock(sk); in sock_set_rcvbuf()
942 __sock_set_rcvbuf(sk, val); in sock_set_rcvbuf()
943 release_sock(sk); in sock_set_rcvbuf()
947 static void __sock_set_mark(struct sock *sk, u32 val) in __sock_set_mark() argument
949 if (val != sk->sk_mark) { in __sock_set_mark()
950 sk->sk_mark = val; in __sock_set_mark()
951 sk_dst_reset(sk); in __sock_set_mark()
955 void sock_set_mark(struct sock *sk, u32 val) in sock_set_mark() argument
957 lock_sock(sk); in sock_set_mark()
958 __sock_set_mark(sk, val); in sock_set_mark()
959 release_sock(sk); in sock_set_mark()
963 static void sock_release_reserved_memory(struct sock *sk, int bytes) in sock_release_reserved_memory() argument
968 WARN_ON(bytes > sk->sk_reserved_mem); in sock_release_reserved_memory()
969 sk->sk_reserved_mem -= bytes; in sock_release_reserved_memory()
970 sk_mem_reclaim(sk); in sock_release_reserved_memory()
973 static int sock_reserve_memory(struct sock *sk, int bytes) in sock_reserve_memory() argument
979 if (!mem_cgroup_sockets_enabled || !sk->sk_memcg || !sk_has_account(sk)) in sock_reserve_memory()
988 charged = mem_cgroup_charge_skmem(sk->sk_memcg, pages, in sock_reserve_memory()
994 allocated = sk_memory_allocated_add(sk, pages); in sock_reserve_memory()
998 if (allocated > sk_prot_mem_limits(sk, 1)) { in sock_reserve_memory()
999 sk_memory_allocated_sub(sk, pages); in sock_reserve_memory()
1000 mem_cgroup_uncharge_skmem(sk->sk_memcg, pages); in sock_reserve_memory()
1003 sk->sk_forward_alloc += pages << SK_MEM_QUANTUM_SHIFT; in sock_reserve_memory()
1005 sk->sk_reserved_mem += pages << SK_MEM_QUANTUM_SHIFT; in sock_reserve_memory()
1020 struct sock *sk = sock->sk; in sock_setsockopt() local
1031 return sock_setbindtodevice(sk, optval, optlen); in sock_setsockopt()
1041 lock_sock(sk); in sock_setsockopt()
1048 sock_valbool_flag(sk, SOCK_DBG, valbool); in sock_setsockopt()
1051 sk->sk_reuse = (valbool ? SK_CAN_REUSE : SK_NO_REUSE); in sock_setsockopt()
1054 sk->sk_reuseport = valbool; in sock_setsockopt()
1063 sock_valbool_flag(sk, SOCK_LOCALROUTE, valbool); in sock_setsockopt()
1064 sk_dst_reset(sk); in sock_setsockopt()
1067 sock_valbool_flag(sk, SOCK_BROADCAST, valbool); in sock_setsockopt()
1081 sk->sk_userlocks |= SOCK_SNDBUF_LOCK; in sock_setsockopt()
1082 WRITE_ONCE(sk->sk_sndbuf, in sock_setsockopt()
1085 sk->sk_write_space(sk); in sock_setsockopt()
1107 __sock_set_rcvbuf(sk, min_t(u32, val, sysctl_rmem_max)); in sock_setsockopt()
1119 __sock_set_rcvbuf(sk, max(val, 0)); in sock_setsockopt()
1123 if (sk->sk_prot->keepalive) in sock_setsockopt()
1124 sk->sk_prot->keepalive(sk, valbool); in sock_setsockopt()
1125 sock_valbool_flag(sk, SOCK_KEEPOPEN, valbool); in sock_setsockopt()
1129 sock_valbool_flag(sk, SOCK_URGINLINE, valbool); in sock_setsockopt()
1133 sk->sk_no_check_tx = valbool; in sock_setsockopt()
1138 ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) in sock_setsockopt()
1139 sk->sk_priority = val; in sock_setsockopt()
1154 sock_reset_flag(sk, SOCK_LINGER); in sock_setsockopt()
1158 sk->sk_lingertime = MAX_SCHEDULE_TIMEOUT; in sock_setsockopt()
1161 sk->sk_lingertime = (unsigned int)ling.l_linger * HZ; in sock_setsockopt()
1162 sock_set_flag(sk, SOCK_LINGER); in sock_setsockopt()
1180 sock_set_timestamp(sk, optname, valbool); in sock_setsockopt()
1195 ret = sock_set_timestamping(sk, optname, timestamping); in sock_setsockopt()
1202 ret = sock->ops->set_rcvlowat(sk, val); in sock_setsockopt()
1204 WRITE_ONCE(sk->sk_rcvlowat, val ? : 1); in sock_setsockopt()
1209 ret = sock_set_timeout(&sk->sk_rcvtimeo, optval, in sock_setsockopt()
1215 ret = sock_set_timeout(&sk->sk_sndtimeo, optval, in sock_setsockopt()
1224 ret = sk_attach_filter(&fprog, sk); in sock_setsockopt()
1236 ret = sk_attach_bpf(ufd, sk); in sock_setsockopt()
1245 ret = sk_reuseport_attach_filter(&fprog, sk); in sock_setsockopt()
1257 ret = sk_reuseport_attach_bpf(ufd, sk); in sock_setsockopt()
1262 ret = reuseport_detach_prog(sk); in sock_setsockopt()
1266 ret = sk_detach_filter(sk); in sock_setsockopt()
1270 if (sock_flag(sk, SOCK_FILTER_LOCKED) && !valbool) in sock_setsockopt()
1273 sock_valbool_flag(sk, SOCK_FILTER_LOCKED, valbool); in sock_setsockopt()
1283 if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) { in sock_setsockopt()
1288 __sock_set_mark(sk, val); in sock_setsockopt()
1292 sock_valbool_flag(sk, SOCK_RXQ_OVFL, valbool); in sock_setsockopt()
1296 sock_valbool_flag(sk, SOCK_WIFI_STATUS, valbool); in sock_setsockopt()
1301 ret = sock->ops->set_peek_off(sk, val); in sock_setsockopt()
1307 sock_valbool_flag(sk, SOCK_NOFCS, valbool); in sock_setsockopt()
1311 sock_valbool_flag(sk, SOCK_SELECT_ERR_QUEUE, valbool); in sock_setsockopt()
1317 if ((val > sk->sk_ll_usec) && !capable(CAP_NET_ADMIN)) in sock_setsockopt()
1323 WRITE_ONCE(sk->sk_ll_usec, val); in sock_setsockopt()
1330 WRITE_ONCE(sk->sk_prefer_busy_poll, valbool); in sock_setsockopt()
1333 if (val > READ_ONCE(sk->sk_busy_poll_budget) && !capable(CAP_NET_ADMIN)) { in sock_setsockopt()
1339 WRITE_ONCE(sk->sk_busy_poll_budget, val); in sock_setsockopt()
1355 cmpxchg(&sk->sk_pacing_status, in sock_setsockopt()
1358 sk->sk_max_pacing_rate = ulval; in sock_setsockopt()
1359 sk->sk_pacing_rate = min(sk->sk_pacing_rate, ulval); in sock_setsockopt()
1363 WRITE_ONCE(sk->sk_incoming_cpu, val); in sock_setsockopt()
1368 dst_negative_advice(sk); in sock_setsockopt()
1372 if (sk->sk_family == PF_INET || sk->sk_family == PF_INET6) { in sock_setsockopt()
1373 if (!((sk->sk_type == SOCK_STREAM && in sock_setsockopt()
1374 sk->sk_protocol == IPPROTO_TCP) || in sock_setsockopt()
1375 (sk->sk_type == SOCK_DGRAM && in sock_setsockopt()
1376 sk->sk_protocol == IPPROTO_UDP))) in sock_setsockopt()
1378 } else if (sk->sk_family != PF_RDS) { in sock_setsockopt()
1385 sock_valbool_flag(sk, SOCK_ZEROCOPY, valbool); in sock_setsockopt()
1405 !ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) { in sock_setsockopt()
1409 sock_valbool_flag(sk, SOCK_TXTIME, true); in sock_setsockopt()
1410 sk->sk_clockid = sk_txtime.clockid; in sock_setsockopt()
1411 sk->sk_txtime_deadline_mode = in sock_setsockopt()
1413 sk->sk_txtime_report_errors = in sock_setsockopt()
1418 ret = sock_bindtoindex_locked(sk, val); in sock_setsockopt()
1426 sk->sk_userlocks = val | (sk->sk_userlocks & in sock_setsockopt()
1439 delta = val - sk->sk_reserved_mem; in sock_setsockopt()
1441 sock_release_reserved_memory(sk, -delta); in sock_setsockopt()
1443 ret = sock_reserve_memory(sk, delta); in sock_setsockopt()
1451 release_sock(sk); in sock_setsockopt()
1456 static const struct cred *sk_get_peer_cred(struct sock *sk) in sk_get_peer_cred() argument
1460 spin_lock(&sk->sk_peer_lock); in sk_get_peer_cred()
1461 cred = get_cred(sk->sk_peer_cred); in sk_get_peer_cred()
1462 spin_unlock(&sk->sk_peer_lock); in sk_get_peer_cred()
1495 struct sock *sk = sock->sk; in sock_getsockopt() local
1521 v.val = sock_flag(sk, SOCK_DBG); in sock_getsockopt()
1525 v.val = sock_flag(sk, SOCK_LOCALROUTE); in sock_getsockopt()
1529 v.val = sock_flag(sk, SOCK_BROADCAST); in sock_getsockopt()
1533 v.val = sk->sk_sndbuf; in sock_getsockopt()
1537 v.val = sk->sk_rcvbuf; in sock_getsockopt()
1541 v.val = sk->sk_reuse; in sock_getsockopt()
1545 v.val = sk->sk_reuseport; in sock_getsockopt()
1549 v.val = sock_flag(sk, SOCK_KEEPOPEN); in sock_getsockopt()
1553 v.val = sk->sk_type; in sock_getsockopt()
1557 v.val = sk->sk_protocol; in sock_getsockopt()
1561 v.val = sk->sk_family; in sock_getsockopt()
1565 v.val = -sock_error(sk); in sock_getsockopt()
1567 v.val = xchg(&sk->sk_err_soft, 0); in sock_getsockopt()
1571 v.val = sock_flag(sk, SOCK_URGINLINE); in sock_getsockopt()
1575 v.val = sk->sk_no_check_tx; in sock_getsockopt()
1579 v.val = sk->sk_priority; in sock_getsockopt()
1584 v.ling.l_onoff = sock_flag(sk, SOCK_LINGER); in sock_getsockopt()
1585 v.ling.l_linger = sk->sk_lingertime / HZ; in sock_getsockopt()
1592 v.val = sock_flag(sk, SOCK_RCVTSTAMP) && in sock_getsockopt()
1593 !sock_flag(sk, SOCK_TSTAMP_NEW) && in sock_getsockopt()
1594 !sock_flag(sk, SOCK_RCVTSTAMPNS); in sock_getsockopt()
1598 v.val = sock_flag(sk, SOCK_RCVTSTAMPNS) && !sock_flag(sk, SOCK_TSTAMP_NEW); in sock_getsockopt()
1602 v.val = sock_flag(sk, SOCK_RCVTSTAMP) && sock_flag(sk, SOCK_TSTAMP_NEW); in sock_getsockopt()
1606 v.val = sock_flag(sk, SOCK_RCVTSTAMPNS) && sock_flag(sk, SOCK_TSTAMP_NEW); in sock_getsockopt()
1611 v.timestamping.flags = sk->sk_tsflags; in sock_getsockopt()
1612 v.timestamping.bind_phc = sk->sk_bind_phc; in sock_getsockopt()
1617 lv = sock_get_timeout(sk->sk_rcvtimeo, &v, SO_RCVTIMEO_OLD == optname); in sock_getsockopt()
1622 lv = sock_get_timeout(sk->sk_sndtimeo, &v, SO_SNDTIMEO_OLD == optname); in sock_getsockopt()
1626 v.val = sk->sk_rcvlowat; in sock_getsockopt()
1643 spin_lock(&sk->sk_peer_lock); in sock_getsockopt()
1644 cred_to_ucred(sk->sk_peer_pid, sk->sk_peer_cred, &peercred); in sock_getsockopt()
1645 spin_unlock(&sk->sk_peer_lock); in sock_getsockopt()
1657 cred = sk_get_peer_cred(sk); in sock_getsockopt()
1694 v.val = sk->sk_state == TCP_LISTEN; in sock_getsockopt()
1705 v.val = sk->sk_mark; in sock_getsockopt()
1709 v.val = sock_flag(sk, SOCK_RXQ_OVFL); in sock_getsockopt()
1713 v.val = sock_flag(sk, SOCK_WIFI_STATUS); in sock_getsockopt()
1720 v.val = sk->sk_peek_off; in sock_getsockopt()
1723 v.val = sock_flag(sk, SOCK_NOFCS); in sock_getsockopt()
1727 return sock_getbindtodevice(sk, optval, optlen, len); in sock_getsockopt()
1730 len = sk_get_filter(sk, (struct sock_filter __user *)optval, len); in sock_getsockopt()
1737 v.val = sock_flag(sk, SOCK_FILTER_LOCKED); in sock_getsockopt()
1745 v.val = sock_flag(sk, SOCK_SELECT_ERR_QUEUE); in sock_getsockopt()
1750 v.val = sk->sk_ll_usec; in sock_getsockopt()
1753 v.val = READ_ONCE(sk->sk_prefer_busy_poll); in sock_getsockopt()
1760 v.ulval = sk->sk_max_pacing_rate; in sock_getsockopt()
1763 v.val = min_t(unsigned long, sk->sk_max_pacing_rate, ~0U); in sock_getsockopt()
1768 v.val = READ_ONCE(sk->sk_incoming_cpu); in sock_getsockopt()
1775 sk_get_meminfo(sk, meminfo); in sock_getsockopt()
1786 v.val = READ_ONCE(sk->sk_napi_id); in sock_getsockopt()
1799 v.val64 = sock_gen_cookie(sk); in sock_getsockopt()
1803 v.val = sock_flag(sk, SOCK_ZEROCOPY); in sock_getsockopt()
1808 v.txtime.clockid = sk->sk_clockid; in sock_getsockopt()
1809 v.txtime.flags |= sk->sk_txtime_deadline_mode ? in sock_getsockopt()
1811 v.txtime.flags |= sk->sk_txtime_report_errors ? in sock_getsockopt()
1816 v.val = sk->sk_bound_dev_if; in sock_getsockopt()
1823 v.val64 = sock_net(sk)->net_cookie; in sock_getsockopt()
1827 v.val = sk->sk_userlocks & SOCK_BUF_LOCK_MASK; in sock_getsockopt()
1831 v.val = sk->sk_reserved_mem; in sock_getsockopt()
1856 static inline void sock_lock_init(struct sock *sk) in sock_lock_init() argument
1858 if (sk->sk_kern_sock) in sock_lock_init()
1860 sk, in sock_lock_init()
1861 af_family_kern_slock_key_strings[sk->sk_family], in sock_lock_init()
1862 af_family_kern_slock_keys + sk->sk_family, in sock_lock_init()
1863 af_family_kern_key_strings[sk->sk_family], in sock_lock_init()
1864 af_family_kern_keys + sk->sk_family); in sock_lock_init()
1867 sk, in sock_lock_init()
1868 af_family_slock_key_strings[sk->sk_family], in sock_lock_init()
1869 af_family_slock_keys + sk->sk_family, in sock_lock_init()
1870 af_family_key_strings[sk->sk_family], in sock_lock_init()
1871 af_family_keys + sk->sk_family); in sock_lock_init()
1909 struct sock *sk; in sk_prot_alloc() local
1914 sk = kmem_cache_alloc(slab, priority & ~__GFP_ZERO); in sk_prot_alloc()
1915 if (!sk) in sk_prot_alloc()
1916 return sk; in sk_prot_alloc()
1918 sk_prot_clear_nulls(sk, prot->obj_size); in sk_prot_alloc()
1920 sk = kmalloc(prot->obj_size, priority); in sk_prot_alloc()
1922 if (sk != NULL) { in sk_prot_alloc()
1923 if (security_sk_alloc(sk, family, priority)) in sk_prot_alloc()
1930 return sk; in sk_prot_alloc()
1933 security_sk_free(sk); in sk_prot_alloc()
1936 kmem_cache_free(slab, sk); in sk_prot_alloc()
1938 kfree(sk); in sk_prot_alloc()
1942 static void sk_prot_free(struct proto *prot, struct sock *sk) in sk_prot_free() argument
1950 cgroup_sk_free(&sk->sk_cgrp_data); in sk_prot_free()
1951 mem_cgroup_sk_free(sk); in sk_prot_free()
1952 security_sk_free(sk); in sk_prot_free()
1954 kmem_cache_free(slab, sk); in sk_prot_free()
1956 kfree(sk); in sk_prot_free()
1971 struct sock *sk; in sk_alloc() local
1973 sk = sk_prot_alloc(prot, priority | __GFP_ZERO, family); in sk_alloc()
1974 if (sk) { in sk_alloc()
1975 sk->sk_family = family; in sk_alloc()
1980 sk->sk_prot = sk->sk_prot_creator = prot; in sk_alloc()
1981 sk->sk_kern_sock = kern; in sk_alloc()
1982 sock_lock_init(sk); in sk_alloc()
1983 sk->sk_net_refcnt = kern ? 0 : 1; in sk_alloc()
1984 if (likely(sk->sk_net_refcnt)) { in sk_alloc()
1989 sock_net_set(sk, net); in sk_alloc()
1990 refcount_set(&sk->sk_wmem_alloc, 1); in sk_alloc()
1992 mem_cgroup_sk_alloc(sk); in sk_alloc()
1993 cgroup_sk_alloc(&sk->sk_cgrp_data); in sk_alloc()
1994 sock_update_classid(&sk->sk_cgrp_data); in sk_alloc()
1995 sock_update_netprioidx(&sk->sk_cgrp_data); in sk_alloc()
1996 sk_tx_queue_clear(sk); in sk_alloc()
1999 return sk; in sk_alloc()
2008 struct sock *sk = container_of(head, struct sock, sk_rcu); in __sk_destruct() local
2011 if (sk->sk_destruct) in __sk_destruct()
2012 sk->sk_destruct(sk); in __sk_destruct()
2014 filter = rcu_dereference_check(sk->sk_filter, in __sk_destruct()
2015 refcount_read(&sk->sk_wmem_alloc) == 0); in __sk_destruct()
2017 sk_filter_uncharge(sk, filter); in __sk_destruct()
2018 RCU_INIT_POINTER(sk->sk_filter, NULL); in __sk_destruct()
2021 sock_disable_timestamp(sk, SK_FLAGS_TIMESTAMP); in __sk_destruct()
2024 bpf_sk_storage_free(sk); in __sk_destruct()
2027 if (atomic_read(&sk->sk_omem_alloc)) in __sk_destruct()
2029 __func__, atomic_read(&sk->sk_omem_alloc)); in __sk_destruct()
2031 if (sk->sk_frag.page) { in __sk_destruct()
2032 put_page(sk->sk_frag.page); in __sk_destruct()
2033 sk->sk_frag.page = NULL; in __sk_destruct()
2037 put_cred(sk->sk_peer_cred); in __sk_destruct()
2038 put_pid(sk->sk_peer_pid); in __sk_destruct()
2040 if (likely(sk->sk_net_refcnt)) in __sk_destruct()
2041 put_net(sock_net(sk)); in __sk_destruct()
2042 sk_prot_free(sk->sk_prot_creator, sk); in __sk_destruct()
2045 void sk_destruct(struct sock *sk) in sk_destruct() argument
2047 bool use_call_rcu = sock_flag(sk, SOCK_RCU_FREE); in sk_destruct()
2049 if (rcu_access_pointer(sk->sk_reuseport_cb)) { in sk_destruct()
2050 reuseport_detach_sock(sk); in sk_destruct()
2055 call_rcu(&sk->sk_rcu, __sk_destruct); in sk_destruct()
2057 __sk_destruct(&sk->sk_rcu); in sk_destruct()
2060 static void __sk_free(struct sock *sk) in __sk_free() argument
2062 if (likely(sk->sk_net_refcnt)) in __sk_free()
2063 sock_inuse_add(sock_net(sk), -1); in __sk_free()
2065 if (unlikely(sk->sk_net_refcnt && sock_diag_has_destroy_listeners(sk))) in __sk_free()
2066 sock_diag_broadcast_destroy(sk); in __sk_free()
2068 sk_destruct(sk); in __sk_free()
2071 void sk_free(struct sock *sk) in sk_free() argument
2078 if (refcount_dec_and_test(&sk->sk_wmem_alloc)) in sk_free()
2079 __sk_free(sk); in sk_free()
2083 static void sk_init_common(struct sock *sk) in sk_init_common() argument
2085 skb_queue_head_init(&sk->sk_receive_queue); in sk_init_common()
2086 skb_queue_head_init(&sk->sk_write_queue); in sk_init_common()
2087 skb_queue_head_init(&sk->sk_error_queue); in sk_init_common()
2089 rwlock_init(&sk->sk_callback_lock); in sk_init_common()
2090 lockdep_set_class_and_name(&sk->sk_receive_queue.lock, in sk_init_common()
2091 af_rlock_keys + sk->sk_family, in sk_init_common()
2092 af_family_rlock_key_strings[sk->sk_family]); in sk_init_common()
2093 lockdep_set_class_and_name(&sk->sk_write_queue.lock, in sk_init_common()
2094 af_wlock_keys + sk->sk_family, in sk_init_common()
2095 af_family_wlock_key_strings[sk->sk_family]); in sk_init_common()
2096 lockdep_set_class_and_name(&sk->sk_error_queue.lock, in sk_init_common()
2097 af_elock_keys + sk->sk_family, in sk_init_common()
2098 af_family_elock_key_strings[sk->sk_family]); in sk_init_common()
2099 lockdep_set_class_and_name(&sk->sk_callback_lock, in sk_init_common()
2100 af_callback_keys + sk->sk_family, in sk_init_common()
2101 af_family_clock_key_strings[sk->sk_family]); in sk_init_common()
2111 struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority) in sk_clone_lock() argument
2113 struct proto *prot = READ_ONCE(sk->sk_prot); in sk_clone_lock()
2118 newsk = sk_prot_alloc(prot, priority, sk->sk_family); in sk_clone_lock()
2122 sock_copy(newsk, sk); in sk_clone_lock()
2152 newsk->sk_userlocks = sk->sk_userlocks & ~SOCK_BINDPORT_LOCK; in sk_clone_lock()
2163 filter = rcu_dereference(sk->sk_filter); in sk_clone_lock()
2173 if (unlikely(!is_charged || xfrm_sk_clone_policy(newsk, sk))) { in sk_clone_lock()
2186 if (bpf_sk_storage_clone(sk, newsk)) { in sk_clone_lock()
2227 if (sock_needs_netstamp(sk) && newsk->sk_flags & SK_FLAGS_TIMESTAMP) in sk_clone_lock()
2234 void sk_free_unlock_clone(struct sock *sk) in sk_free_unlock_clone() argument
2238 sk->sk_destruct = NULL; in sk_free_unlock_clone()
2239 bh_unlock_sock(sk); in sk_free_unlock_clone()
2240 sk_free(sk); in sk_free_unlock_clone()
2244 void sk_setup_caps(struct sock *sk, struct dst_entry *dst) in sk_setup_caps() argument
2248 sk_dst_set(sk, dst); in sk_setup_caps()
2249 sk->sk_route_caps = dst->dev->features | sk->sk_route_forced_caps; in sk_setup_caps()
2250 if (sk->sk_route_caps & NETIF_F_GSO) in sk_setup_caps()
2251 sk->sk_route_caps |= NETIF_F_GSO_SOFTWARE; in sk_setup_caps()
2252 sk->sk_route_caps &= ~sk->sk_route_nocaps; in sk_setup_caps()
2253 if (sk_can_gso(sk)) { in sk_setup_caps()
2255 sk->sk_route_caps &= ~NETIF_F_GSO_MASK; in sk_setup_caps()
2257 sk->sk_route_caps |= NETIF_F_SG | NETIF_F_HW_CSUM; in sk_setup_caps()
2258 sk->sk_gso_max_size = dst->dev->gso_max_size; in sk_setup_caps()
2262 sk->sk_gso_max_segs = max_segs; in sk_setup_caps()
2276 struct sock *sk = skb->sk; in sock_wfree() local
2279 if (!sock_flag(sk, SOCK_USE_WRITE_QUEUE)) { in sock_wfree()
2284 WARN_ON(refcount_sub_and_test(len - 1, &sk->sk_wmem_alloc)); in sock_wfree()
2285 sk->sk_write_space(sk); in sock_wfree()
2292 if (refcount_sub_and_test(len, &sk->sk_wmem_alloc)) in sock_wfree()
2293 __sk_free(sk); in sock_wfree()
2302 struct sock *sk = skb->sk; in __sock_wfree() local
2304 if (refcount_sub_and_test(skb->truesize, &sk->sk_wmem_alloc)) in __sock_wfree()
2305 __sk_free(sk); in __sock_wfree()
2308 void skb_set_owner_w(struct sk_buff *skb, struct sock *sk) in skb_set_owner_w() argument
2311 skb->sk = sk; in skb_set_owner_w()
2313 if (unlikely(!sk_fullsock(sk))) { in skb_set_owner_w()
2315 sock_hold(sk); in skb_set_owner_w()
2320 skb_set_hash_from_sk(skb, sk); in skb_set_owner_w()
2326 refcount_add(skb->truesize, &sk->sk_wmem_alloc); in skb_set_owner_w()
2354 if (can_skb_orphan_partial(skb) && skb_set_owner_sk_safe(skb, skb->sk)) in skb_orphan_partial()
2366 struct sock *sk = skb->sk; in sock_rfree() local
2369 atomic_sub(len, &sk->sk_rmem_alloc); in sock_rfree()
2370 sk_mem_uncharge(sk, len); in sock_rfree()
2380 sock_put(skb->sk); in sock_efree()
2390 if (sk_is_refcounted(skb->sk)) in sock_pfree()
2391 sock_gen_put(skb->sk); in sock_pfree()
2396 kuid_t sock_i_uid(struct sock *sk) in sock_i_uid() argument
2400 read_lock_bh(&sk->sk_callback_lock); in sock_i_uid()
2401 uid = sk->sk_socket ? SOCK_INODE(sk->sk_socket)->i_uid : GLOBAL_ROOT_UID; in sock_i_uid()
2402 read_unlock_bh(&sk->sk_callback_lock); in sock_i_uid()
2407 unsigned long sock_i_ino(struct sock *sk) in sock_i_ino() argument
2411 read_lock_bh(&sk->sk_callback_lock); in sock_i_ino()
2412 ino = sk->sk_socket ? SOCK_INODE(sk->sk_socket)->i_ino : 0; in sock_i_ino()
2413 read_unlock_bh(&sk->sk_callback_lock); in sock_i_ino()
2421 struct sk_buff *sock_wmalloc(struct sock *sk, unsigned long size, int force, in sock_wmalloc() argument
2425 refcount_read(&sk->sk_wmem_alloc) < READ_ONCE(sk->sk_sndbuf)) { in sock_wmalloc()
2429 skb_set_owner_w(skb, sk); in sock_wmalloc()
2439 struct sock *sk = skb->sk; in sock_ofree() local
2441 atomic_sub(skb->truesize, &sk->sk_omem_alloc); in sock_ofree()
2444 struct sk_buff *sock_omalloc(struct sock *sk, unsigned long size, in sock_omalloc() argument
2450 if (atomic_read(&sk->sk_omem_alloc) + SKB_TRUESIZE(size) > in sock_omalloc()
2458 atomic_add(skb->truesize, &sk->sk_omem_alloc); in sock_omalloc()
2459 skb->sk = sk; in sock_omalloc()
2467 void *sock_kmalloc(struct sock *sk, int size, gfp_t priority) in sock_kmalloc() argument
2470 atomic_read(&sk->sk_omem_alloc) + size < sysctl_optmem_max) { in sock_kmalloc()
2475 atomic_add(size, &sk->sk_omem_alloc); in sock_kmalloc()
2479 atomic_sub(size, &sk->sk_omem_alloc); in sock_kmalloc()
2489 static inline void __sock_kfree_s(struct sock *sk, void *mem, int size, in __sock_kfree_s() argument
2498 atomic_sub(size, &sk->sk_omem_alloc); in __sock_kfree_s()
2501 void sock_kfree_s(struct sock *sk, void *mem, int size) in sock_kfree_s() argument
2503 __sock_kfree_s(sk, mem, size, false); in sock_kfree_s()
2507 void sock_kzfree_s(struct sock *sk, void *mem, int size) in sock_kzfree_s() argument
2509 __sock_kfree_s(sk, mem, size, true); in sock_kzfree_s()
2516 static long sock_wait_for_wmem(struct sock *sk, long timeo) in sock_wait_for_wmem() argument
2520 sk_clear_bit(SOCKWQ_ASYNC_NOSPACE, sk); in sock_wait_for_wmem()
2526 set_bit(SOCK_NOSPACE, &sk->sk_socket->flags); in sock_wait_for_wmem()
2527 prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); in sock_wait_for_wmem()
2528 if (refcount_read(&sk->sk_wmem_alloc) < READ_ONCE(sk->sk_sndbuf)) in sock_wait_for_wmem()
2530 if (sk->sk_shutdown & SEND_SHUTDOWN) in sock_wait_for_wmem()
2532 if (sk->sk_err) in sock_wait_for_wmem()
2536 finish_wait(sk_sleep(sk), &wait); in sock_wait_for_wmem()
2545 struct sk_buff *sock_alloc_send_pskb(struct sock *sk, unsigned long header_len, in sock_alloc_send_pskb() argument
2553 timeo = sock_sndtimeo(sk, noblock); in sock_alloc_send_pskb()
2555 err = sock_error(sk); in sock_alloc_send_pskb()
2560 if (sk->sk_shutdown & SEND_SHUTDOWN) in sock_alloc_send_pskb()
2563 if (sk_wmem_alloc_get(sk) < READ_ONCE(sk->sk_sndbuf)) in sock_alloc_send_pskb()
2566 sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk); in sock_alloc_send_pskb()
2567 set_bit(SOCK_NOSPACE, &sk->sk_socket->flags); in sock_alloc_send_pskb()
2573 timeo = sock_wait_for_wmem(sk, timeo); in sock_alloc_send_pskb()
2576 errcode, sk->sk_allocation); in sock_alloc_send_pskb()
2578 skb_set_owner_w(skb, sk); in sock_alloc_send_pskb()
2589 struct sk_buff *sock_alloc_send_skb(struct sock *sk, unsigned long size, in sock_alloc_send_skb() argument
2592 return sock_alloc_send_pskb(sk, size, 0, noblock, errcode, 0); in sock_alloc_send_skb()
2596 int __sock_cmsg_send(struct sock *sk, struct msghdr *msg, struct cmsghdr *cmsg, in __sock_cmsg_send() argument
2603 if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) in __sock_cmsg_send()
2621 if (!sock_flag(sk, SOCK_TXTIME)) in __sock_cmsg_send()
2638 int sock_cmsg_send(struct sock *sk, struct msghdr *msg, in sock_cmsg_send() argument
2649 ret = __sock_cmsg_send(sk, msg, cmsg, sockc); in sock_cmsg_send()
2657 static void sk_enter_memory_pressure(struct sock *sk) in sk_enter_memory_pressure() argument
2659 if (!sk->sk_prot->enter_memory_pressure) in sk_enter_memory_pressure()
2662 sk->sk_prot->enter_memory_pressure(sk); in sk_enter_memory_pressure()
2665 static void sk_leave_memory_pressure(struct sock *sk) in sk_leave_memory_pressure() argument
2667 if (sk->sk_prot->leave_memory_pressure) { in sk_leave_memory_pressure()
2668 sk->sk_prot->leave_memory_pressure(sk); in sk_leave_memory_pressure()
2670 unsigned long *memory_pressure = sk->sk_prot->memory_pressure; in sk_leave_memory_pressure()
2723 bool sk_page_frag_refill(struct sock *sk, struct page_frag *pfrag) in sk_page_frag_refill() argument
2725 if (likely(skb_page_frag_refill(32U, pfrag, sk->sk_allocation))) in sk_page_frag_refill()
2728 sk_enter_memory_pressure(sk); in sk_page_frag_refill()
2729 sk_stream_moderate_sndbuf(sk); in sk_page_frag_refill()
2734 void __lock_sock(struct sock *sk) in __lock_sock() argument
2735 __releases(&sk->sk_lock.slock) in __lock_sock()
2736 __acquires(&sk->sk_lock.slock) in __lock_sock()
2741 prepare_to_wait_exclusive(&sk->sk_lock.wq, &wait, in __lock_sock()
2743 spin_unlock_bh(&sk->sk_lock.slock); in __lock_sock()
2745 spin_lock_bh(&sk->sk_lock.slock); in __lock_sock()
2746 if (!sock_owned_by_user(sk)) in __lock_sock()
2749 finish_wait(&sk->sk_lock.wq, &wait); in __lock_sock()
2752 void __release_sock(struct sock *sk) in __release_sock() argument
2753 __releases(&sk->sk_lock.slock) in __release_sock()
2754 __acquires(&sk->sk_lock.slock) in __release_sock()
2758 while ((skb = sk->sk_backlog.head) != NULL) { in __release_sock()
2759 sk->sk_backlog.head = sk->sk_backlog.tail = NULL; in __release_sock()
2761 spin_unlock_bh(&sk->sk_lock.slock); in __release_sock()
2768 sk_backlog_rcv(sk, skb); in __release_sock()
2775 spin_lock_bh(&sk->sk_lock.slock); in __release_sock()
2782 sk->sk_backlog.len = 0; in __release_sock()
2785 void __sk_flush_backlog(struct sock *sk) in __sk_flush_backlog() argument
2787 spin_lock_bh(&sk->sk_lock.slock); in __sk_flush_backlog()
2788 __release_sock(sk); in __sk_flush_backlog()
2789 spin_unlock_bh(&sk->sk_lock.slock); in __sk_flush_backlog()
2803 int sk_wait_data(struct sock *sk, long *timeo, const struct sk_buff *skb) in sk_wait_data() argument
2808 add_wait_queue(sk_sleep(sk), &wait); in sk_wait_data()
2809 sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk); in sk_wait_data()
2810 rc = sk_wait_event(sk, timeo, skb_peek_tail(&sk->sk_receive_queue) != skb, &wait); in sk_wait_data()
2811 sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk); in sk_wait_data()
2812 remove_wait_queue(sk_sleep(sk), &wait); in sk_wait_data()
2826 int __sk_mem_raise_allocated(struct sock *sk, int size, int amt, int kind) in __sk_mem_raise_allocated() argument
2828 struct proto *prot = sk->sk_prot; in __sk_mem_raise_allocated()
2829 long allocated = sk_memory_allocated_add(sk, amt); in __sk_mem_raise_allocated()
2830 bool memcg_charge = mem_cgroup_sockets_enabled && sk->sk_memcg; in __sk_mem_raise_allocated()
2834 !(charged = mem_cgroup_charge_skmem(sk->sk_memcg, amt, in __sk_mem_raise_allocated()
2839 if (allocated <= sk_prot_mem_limits(sk, 0)) { in __sk_mem_raise_allocated()
2840 sk_leave_memory_pressure(sk); in __sk_mem_raise_allocated()
2845 if (allocated > sk_prot_mem_limits(sk, 1)) in __sk_mem_raise_allocated()
2846 sk_enter_memory_pressure(sk); in __sk_mem_raise_allocated()
2849 if (allocated > sk_prot_mem_limits(sk, 2)) in __sk_mem_raise_allocated()
2854 if (atomic_read(&sk->sk_rmem_alloc) < sk_get_rmem0(sk, prot)) in __sk_mem_raise_allocated()
2858 int wmem0 = sk_get_wmem0(sk, prot); in __sk_mem_raise_allocated()
2860 if (sk->sk_type == SOCK_STREAM) { in __sk_mem_raise_allocated()
2861 if (sk->sk_wmem_queued < wmem0) in __sk_mem_raise_allocated()
2863 } else if (refcount_read(&sk->sk_wmem_alloc) < wmem0) { in __sk_mem_raise_allocated()
2868 if (sk_has_memory_pressure(sk)) { in __sk_mem_raise_allocated()
2871 if (!sk_under_memory_pressure(sk)) in __sk_mem_raise_allocated()
2873 alloc = sk_sockets_allocated_read_positive(sk); in __sk_mem_raise_allocated()
2874 if (sk_prot_mem_limits(sk, 2) > alloc * in __sk_mem_raise_allocated()
2875 sk_mem_pages(sk->sk_wmem_queued + in __sk_mem_raise_allocated()
2876 atomic_read(&sk->sk_rmem_alloc) + in __sk_mem_raise_allocated()
2877 sk->sk_forward_alloc)) in __sk_mem_raise_allocated()
2883 if (kind == SK_MEM_SEND && sk->sk_type == SOCK_STREAM) { in __sk_mem_raise_allocated()
2884 sk_stream_moderate_sndbuf(sk); in __sk_mem_raise_allocated()
2889 if (sk->sk_wmem_queued + size >= sk->sk_sndbuf) { in __sk_mem_raise_allocated()
2892 mem_cgroup_charge_skmem(sk->sk_memcg, amt, in __sk_mem_raise_allocated()
2900 trace_sock_exceed_buf_limit(sk, prot, allocated, kind); in __sk_mem_raise_allocated()
2902 sk_memory_allocated_sub(sk, amt); in __sk_mem_raise_allocated()
2905 mem_cgroup_uncharge_skmem(sk->sk_memcg, amt); in __sk_mem_raise_allocated()
2921 int __sk_mem_schedule(struct sock *sk, int size, int kind) in __sk_mem_schedule() argument
2925 sk->sk_forward_alloc += amt << SK_MEM_QUANTUM_SHIFT; in __sk_mem_schedule()
2926 ret = __sk_mem_raise_allocated(sk, size, amt, kind); in __sk_mem_schedule()
2928 sk->sk_forward_alloc -= amt << SK_MEM_QUANTUM_SHIFT; in __sk_mem_schedule()
2940 void __sk_mem_reduce_allocated(struct sock *sk, int amount) in __sk_mem_reduce_allocated() argument
2942 sk_memory_allocated_sub(sk, amount); in __sk_mem_reduce_allocated()
2944 if (mem_cgroup_sockets_enabled && sk->sk_memcg) in __sk_mem_reduce_allocated()
2945 mem_cgroup_uncharge_skmem(sk->sk_memcg, amount); in __sk_mem_reduce_allocated()
2947 if (sk_under_memory_pressure(sk) && in __sk_mem_reduce_allocated()
2948 (sk_memory_allocated(sk) < sk_prot_mem_limits(sk, 0))) in __sk_mem_reduce_allocated()
2949 sk_leave_memory_pressure(sk); in __sk_mem_reduce_allocated()
2958 void __sk_mem_reclaim(struct sock *sk, int amount) in __sk_mem_reclaim() argument
2961 sk->sk_forward_alloc -= amount << SK_MEM_QUANTUM_SHIFT; in __sk_mem_reclaim()
2962 __sk_mem_reduce_allocated(sk, amount); in __sk_mem_reclaim()
2966 int sk_set_peek_off(struct sock *sk, int val) in sk_set_peek_off() argument
2968 sk->sk_peek_off = val; in sk_set_peek_off()
3037 int sock_no_sendmsg_locked(struct sock *sk, struct msghdr *m, size_t len) in sock_no_sendmsg_locked() argument
3067 sock_update_netprioidx(&sock->sk->sk_cgrp_data); in __receive_sock()
3068 sock_update_classid(&sock->sk->sk_cgrp_data); in __receive_sock()
3086 ssize_t sock_no_sendpage_locked(struct sock *sk, struct page *page, in sock_no_sendpage_locked() argument
3096 res = kernel_sendmsg_locked(sk, &msg, &iov, 1, size); in sock_no_sendpage_locked()
3106 static void sock_def_wakeup(struct sock *sk) in sock_def_wakeup() argument
3111 wq = rcu_dereference(sk->sk_wq); in sock_def_wakeup()
3117 static void sock_def_error_report(struct sock *sk) in sock_def_error_report() argument
3122 wq = rcu_dereference(sk->sk_wq); in sock_def_error_report()
3125 sk_wake_async(sk, SOCK_WAKE_IO, POLL_ERR); in sock_def_error_report()
3129 void sock_def_readable(struct sock *sk) in sock_def_readable() argument
3134 wq = rcu_dereference(sk->sk_wq); in sock_def_readable()
3138 sk_wake_async(sk, SOCK_WAKE_WAITD, POLL_IN); in sock_def_readable()
3142 static void sock_def_write_space(struct sock *sk) in sock_def_write_space() argument
3151 if ((refcount_read(&sk->sk_wmem_alloc) << 1) <= READ_ONCE(sk->sk_sndbuf)) { in sock_def_write_space()
3152 wq = rcu_dereference(sk->sk_wq); in sock_def_write_space()
3158 if (sock_writeable(sk)) in sock_def_write_space()
3159 sk_wake_async(sk, SOCK_WAKE_SPACE, POLL_OUT); in sock_def_write_space()
3165 static void sock_def_destruct(struct sock *sk) in sock_def_destruct() argument
3169 void sk_send_sigurg(struct sock *sk) in sk_send_sigurg() argument
3171 if (sk->sk_socket && sk->sk_socket->file) in sk_send_sigurg()
3172 if (send_sigurg(&sk->sk_socket->file->f_owner)) in sk_send_sigurg()
3173 sk_wake_async(sk, SOCK_WAKE_URG, POLL_PRI); in sk_send_sigurg()
3177 void sk_reset_timer(struct sock *sk, struct timer_list* timer, in sk_reset_timer() argument
3181 sock_hold(sk); in sk_reset_timer()
3185 void sk_stop_timer(struct sock *sk, struct timer_list* timer) in sk_stop_timer() argument
3188 __sock_put(sk); in sk_stop_timer()
3192 void sk_stop_timer_sync(struct sock *sk, struct timer_list *timer) in sk_stop_timer_sync() argument
3195 __sock_put(sk); in sk_stop_timer_sync()
3199 void sock_init_data(struct socket *sock, struct sock *sk) in sock_init_data() argument
3201 sk_init_common(sk); in sock_init_data()
3202 sk->sk_send_head = NULL; in sock_init_data()
3204 timer_setup(&sk->sk_timer, NULL, 0); in sock_init_data()
3206 sk->sk_allocation = GFP_KERNEL; in sock_init_data()
3207 sk->sk_rcvbuf = sysctl_rmem_default; in sock_init_data()
3208 sk->sk_sndbuf = sysctl_wmem_default; in sock_init_data()
3209 sk->sk_state = TCP_CLOSE; in sock_init_data()
3210 sk_set_socket(sk, sock); in sock_init_data()
3212 sock_set_flag(sk, SOCK_ZAPPED); in sock_init_data()
3215 sk->sk_type = sock->type; in sock_init_data()
3216 RCU_INIT_POINTER(sk->sk_wq, &sock->wq); in sock_init_data()
3217 sock->sk = sk; in sock_init_data()
3218 sk->sk_uid = SOCK_INODE(sock)->i_uid; in sock_init_data()
3220 RCU_INIT_POINTER(sk->sk_wq, NULL); in sock_init_data()
3221 sk->sk_uid = make_kuid(sock_net(sk)->user_ns, 0); in sock_init_data()
3224 rwlock_init(&sk->sk_callback_lock); in sock_init_data()
3225 if (sk->sk_kern_sock) in sock_init_data()
3227 &sk->sk_callback_lock, in sock_init_data()
3228 af_kern_callback_keys + sk->sk_family, in sock_init_data()
3229 af_family_kern_clock_key_strings[sk->sk_family]); in sock_init_data()
3232 &sk->sk_callback_lock, in sock_init_data()
3233 af_callback_keys + sk->sk_family, in sock_init_data()
3234 af_family_clock_key_strings[sk->sk_family]); in sock_init_data()
3236 sk->sk_state_change = sock_def_wakeup; in sock_init_data()
3237 sk->sk_data_ready = sock_def_readable; in sock_init_data()
3238 sk->sk_write_space = sock_def_write_space; in sock_init_data()
3239 sk->sk_error_report = sock_def_error_report; in sock_init_data()
3240 sk->sk_destruct = sock_def_destruct; in sock_init_data()
3242 sk->sk_frag.page = NULL; in sock_init_data()
3243 sk->sk_frag.offset = 0; in sock_init_data()
3244 sk->sk_peek_off = -1; in sock_init_data()
3246 sk->sk_peer_pid = NULL; in sock_init_data()
3247 sk->sk_peer_cred = NULL; in sock_init_data()
3248 spin_lock_init(&sk->sk_peer_lock); in sock_init_data()
3250 sk->sk_write_pending = 0; in sock_init_data()
3251 sk->sk_rcvlowat = 1; in sock_init_data()
3252 sk->sk_rcvtimeo = MAX_SCHEDULE_TIMEOUT; in sock_init_data()
3253 sk->sk_sndtimeo = MAX_SCHEDULE_TIMEOUT; in sock_init_data()
3255 sk->sk_stamp = SK_DEFAULT_STAMP; in sock_init_data()
3257 seqlock_init(&sk->sk_stamp_seq); in sock_init_data()
3259 atomic_set(&sk->sk_zckey, 0); in sock_init_data()
3262 sk->sk_napi_id = 0; in sock_init_data()
3263 sk->sk_ll_usec = sysctl_net_busy_read; in sock_init_data()
3266 sk->sk_max_pacing_rate = ~0UL; in sock_init_data()
3267 sk->sk_pacing_rate = ~0UL; in sock_init_data()
3268 WRITE_ONCE(sk->sk_pacing_shift, 10); in sock_init_data()
3269 sk->sk_incoming_cpu = -1; in sock_init_data()
3271 sk_rx_queue_clear(sk); in sock_init_data()
3277 refcount_set(&sk->sk_refcnt, 1); in sock_init_data()
3278 atomic_set(&sk->sk_drops, 0); in sock_init_data()
3282 void lock_sock_nested(struct sock *sk, int subclass) in lock_sock_nested() argument
3285 mutex_acquire(&sk->sk_lock.dep_map, subclass, 0, _RET_IP_); in lock_sock_nested()
3288 spin_lock_bh(&sk->sk_lock.slock); in lock_sock_nested()
3289 if (sk->sk_lock.owned) in lock_sock_nested()
3290 __lock_sock(sk); in lock_sock_nested()
3291 sk->sk_lock.owned = 1; in lock_sock_nested()
3292 spin_unlock_bh(&sk->sk_lock.slock); in lock_sock_nested()
3296 void release_sock(struct sock *sk) in release_sock() argument
3298 spin_lock_bh(&sk->sk_lock.slock); in release_sock()
3299 if (sk->sk_backlog.tail) in release_sock()
3300 __release_sock(sk); in release_sock()
3305 if (sk->sk_prot->release_cb) in release_sock()
3306 sk->sk_prot->release_cb(sk); in release_sock()
3308 sock_release_ownership(sk); in release_sock()
3309 if (waitqueue_active(&sk->sk_lock.wq)) in release_sock()
3310 wake_up(&sk->sk_lock.wq); in release_sock()
3311 spin_unlock_bh(&sk->sk_lock.slock); in release_sock()
3315 bool __lock_sock_fast(struct sock *sk) __acquires(&sk->sk_lock.slock) in __lock_sock_fast() argument
3318 spin_lock_bh(&sk->sk_lock.slock); in __lock_sock_fast()
3320 if (!sk->sk_lock.owned) { in __lock_sock_fast()
3339 __lock_sock(sk); in __lock_sock_fast()
3340 sk->sk_lock.owned = 1; in __lock_sock_fast()
3341 __acquire(&sk->sk_lock.slock); in __lock_sock_fast()
3342 spin_unlock_bh(&sk->sk_lock.slock); in __lock_sock_fast()
3350 struct sock *sk = sock->sk; in sock_gettstamp() local
3353 sock_enable_timestamp(sk, SOCK_TIMESTAMP); in sock_gettstamp()
3354 ts = ktime_to_timespec64(sock_read_timestamp(sk)); in sock_gettstamp()
3359 sock_write_timestamp(sk, kt); in sock_gettstamp()
3386 void sock_enable_timestamp(struct sock *sk, enum sock_flags flag) in sock_enable_timestamp() argument
3388 if (!sock_flag(sk, flag)) { in sock_enable_timestamp()
3389 unsigned long previous_flags = sk->sk_flags; in sock_enable_timestamp()
3391 sock_set_flag(sk, flag); in sock_enable_timestamp()
3397 if (sock_needs_netstamp(sk) && in sock_enable_timestamp()
3403 int sock_recv_errqueue(struct sock *sk, struct msghdr *msg, int len, in sock_recv_errqueue() argument
3411 skb = sock_dequeue_err_skb(sk); in sock_recv_errqueue()
3424 sock_recv_timestamp(msg, sk, skb); in sock_recv_errqueue()
3449 struct sock *sk = sock->sk; in sock_common_getsockopt() local
3451 return sk->sk_prot->getsockopt(sk, level, optname, optval, optlen); in sock_common_getsockopt()
3458 struct sock *sk = sock->sk; in sock_common_recvmsg() local
3462 err = sk->sk_prot->recvmsg(sk, msg, size, flags & MSG_DONTWAIT, in sock_common_recvmsg()
3476 struct sock *sk = sock->sk; in sock_common_setsockopt() local
3478 return sk->sk_prot->setsockopt(sk, level, optname, optval, optlen); in sock_common_setsockopt()
3482 void sk_common_release(struct sock *sk) in sk_common_release() argument
3484 if (sk->sk_prot->destroy) in sk_common_release()
3485 sk->sk_prot->destroy(sk); in sk_common_release()
3495 sk->sk_prot->unhash(sk); in sk_common_release()
3509 sock_orphan(sk); in sk_common_release()
3511 xfrm_sk_free_policy(sk); in sk_common_release()
3513 sk_refcnt_debug_release(sk); in sk_common_release()
3515 sock_put(sk); in sk_common_release()
3519 void sk_get_meminfo(const struct sock *sk, u32 *mem) in sk_get_meminfo() argument
3523 mem[SK_MEMINFO_RMEM_ALLOC] = sk_rmem_alloc_get(sk); in sk_get_meminfo()
3524 mem[SK_MEMINFO_RCVBUF] = READ_ONCE(sk->sk_rcvbuf); in sk_get_meminfo()
3525 mem[SK_MEMINFO_WMEM_ALLOC] = sk_wmem_alloc_get(sk); in sk_get_meminfo()
3526 mem[SK_MEMINFO_SNDBUF] = READ_ONCE(sk->sk_sndbuf); in sk_get_meminfo()
3527 mem[SK_MEMINFO_FWD_ALLOC] = sk->sk_forward_alloc; in sk_get_meminfo()
3528 mem[SK_MEMINFO_WMEM_QUEUED] = READ_ONCE(sk->sk_wmem_queued); in sk_get_meminfo()
3529 mem[SK_MEMINFO_OPTMEM] = atomic_read(&sk->sk_omem_alloc); in sk_get_meminfo()
3530 mem[SK_MEMINFO_BACKLOG] = READ_ONCE(sk->sk_backlog.len); in sk_get_meminfo()
3531 mem[SK_MEMINFO_DROPS] = atomic_read(&sk->sk_drops); in sk_get_meminfo()
3932 struct sock *sk = p; in sk_busy_loop_end() local
3934 return !skb_queue_empty_lockless(&sk->sk_receive_queue) || in sk_busy_loop_end()
3935 sk_busy_loop_timeout(sk, start_time); in sk_busy_loop_end()
3940 int sock_bind_add(struct sock *sk, struct sockaddr *addr, int addr_len) in sock_bind_add() argument
3942 if (!sk->sk_prot->bind_add) in sock_bind_add()
3944 return sk->sk_prot->bind_add(sk, addr, addr_len); in sock_bind_add()