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()
435 static bool sock_needs_netstamp(const struct sock *sk) in sock_needs_netstamp() argument
437 switch (sk->sk_family) { in sock_needs_netstamp()
446 static void sock_disable_timestamp(struct sock *sk, unsigned long flags) in sock_disable_timestamp() argument
448 if (sk->sk_flags & flags) { in sock_disable_timestamp()
449 sk->sk_flags &= ~flags; in sock_disable_timestamp()
450 if (sock_needs_netstamp(sk) && in sock_disable_timestamp()
451 !(sk->sk_flags & SK_FLAGS_TIMESTAMP)) in sock_disable_timestamp()
457 int __sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) in __sock_queue_rcv_skb() argument
460 struct sk_buff_head *list = &sk->sk_receive_queue; in __sock_queue_rcv_skb()
462 if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf) { in __sock_queue_rcv_skb()
463 atomic_inc(&sk->sk_drops); in __sock_queue_rcv_skb()
464 trace_sock_rcvqueue_full(sk, skb); in __sock_queue_rcv_skb()
468 if (!sk_rmem_schedule(sk, skb, skb->truesize)) { in __sock_queue_rcv_skb()
469 atomic_inc(&sk->sk_drops); in __sock_queue_rcv_skb()
474 skb_set_owner_r(skb, sk); in __sock_queue_rcv_skb()
482 sock_skb_set_dropcount(sk, skb); in __sock_queue_rcv_skb()
486 if (!sock_flag(sk, SOCK_DEAD)) in __sock_queue_rcv_skb()
487 sk->sk_data_ready(sk); in __sock_queue_rcv_skb()
492 int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) in sock_queue_rcv_skb() argument
496 err = sk_filter(sk, skb); in sock_queue_rcv_skb()
500 return __sock_queue_rcv_skb(sk, skb); in sock_queue_rcv_skb()
504 int __sk_receive_skb(struct sock *sk, struct sk_buff *skb, in __sk_receive_skb() argument
509 if (sk_filter_trim_cap(sk, skb, trim_cap)) in __sk_receive_skb()
514 if (sk_rcvqueues_full(sk, sk->sk_rcvbuf)) { in __sk_receive_skb()
515 atomic_inc(&sk->sk_drops); in __sk_receive_skb()
519 bh_lock_sock_nested(sk); in __sk_receive_skb()
521 bh_lock_sock(sk); in __sk_receive_skb()
522 if (!sock_owned_by_user(sk)) { in __sk_receive_skb()
526 mutex_acquire(&sk->sk_lock.dep_map, 0, 1, _RET_IP_); in __sk_receive_skb()
528 rc = sk_backlog_rcv(sk, skb); in __sk_receive_skb()
530 mutex_release(&sk->sk_lock.dep_map, _RET_IP_); in __sk_receive_skb()
531 } else if (sk_add_backlog(sk, skb, READ_ONCE(sk->sk_rcvbuf))) { in __sk_receive_skb()
532 bh_unlock_sock(sk); in __sk_receive_skb()
533 atomic_inc(&sk->sk_drops); in __sk_receive_skb()
537 bh_unlock_sock(sk); in __sk_receive_skb()
540 sock_put(sk); in __sk_receive_skb()
552 struct dst_entry *__sk_dst_check(struct sock *sk, u32 cookie) in __sk_dst_check() argument
554 struct dst_entry *dst = __sk_dst_get(sk); in __sk_dst_check()
559 sk_tx_queue_clear(sk); in __sk_dst_check()
560 sk->sk_dst_pending_confirm = 0; in __sk_dst_check()
561 RCU_INIT_POINTER(sk->sk_dst_cache, NULL); in __sk_dst_check()
570 struct dst_entry *sk_dst_check(struct sock *sk, u32 cookie) in sk_dst_check() argument
572 struct dst_entry *dst = sk_dst_get(sk); in sk_dst_check()
577 sk_dst_reset(sk); in sk_dst_check()
586 static int sock_bindtoindex_locked(struct sock *sk, int ifindex) in sock_bindtoindex_locked() argument
590 struct net *net = sock_net(sk); in sock_bindtoindex_locked()
594 if (sk->sk_bound_dev_if && !ns_capable(net->user_ns, CAP_NET_RAW)) in sock_bindtoindex_locked()
601 sk->sk_bound_dev_if = ifindex; in sock_bindtoindex_locked()
602 if (sk->sk_prot->rehash) in sock_bindtoindex_locked()
603 sk->sk_prot->rehash(sk); in sock_bindtoindex_locked()
604 sk_dst_reset(sk); in sock_bindtoindex_locked()
614 int sock_bindtoindex(struct sock *sk, int ifindex, bool lock_sk) in sock_bindtoindex() argument
619 lock_sock(sk); in sock_bindtoindex()
620 ret = sock_bindtoindex_locked(sk, ifindex); in sock_bindtoindex()
622 release_sock(sk); in sock_bindtoindex()
628 static int sock_setbindtodevice(struct sock *sk, sockptr_t optval, int optlen) in sock_setbindtodevice() argument
632 struct net *net = sock_net(sk); in sock_setbindtodevice()
667 return sock_bindtoindex(sk, index, true); in sock_setbindtodevice()
674 static int sock_getbindtodevice(struct sock *sk, char __user *optval, in sock_getbindtodevice() argument
679 struct net *net = sock_net(sk); in sock_getbindtodevice()
682 if (sk->sk_bound_dev_if == 0) { in sock_getbindtodevice()
691 ret = netdev_get_name(net, devname, sk->sk_bound_dev_if); in sock_getbindtodevice()
714 bool sk_mc_loop(struct sock *sk) in sk_mc_loop() argument
718 if (!sk) in sk_mc_loop()
720 switch (sk->sk_family) { in sk_mc_loop()
722 return inet_sk(sk)->mc_loop; in sk_mc_loop()
725 return inet6_sk(sk)->mc_loop; in sk_mc_loop()
733 void sock_set_reuseaddr(struct sock *sk) in sock_set_reuseaddr() argument
735 lock_sock(sk); in sock_set_reuseaddr()
736 sk->sk_reuse = SK_CAN_REUSE; in sock_set_reuseaddr()
737 release_sock(sk); in sock_set_reuseaddr()
741 void sock_set_reuseport(struct sock *sk) in sock_set_reuseport() argument
743 lock_sock(sk); in sock_set_reuseport()
744 sk->sk_reuseport = true; in sock_set_reuseport()
745 release_sock(sk); in sock_set_reuseport()
749 void sock_no_linger(struct sock *sk) in sock_no_linger() argument
751 lock_sock(sk); in sock_no_linger()
752 sk->sk_lingertime = 0; in sock_no_linger()
753 sock_set_flag(sk, SOCK_LINGER); in sock_no_linger()
754 release_sock(sk); in sock_no_linger()
758 void sock_set_priority(struct sock *sk, u32 priority) in sock_set_priority() argument
760 lock_sock(sk); in sock_set_priority()
761 sk->sk_priority = priority; in sock_set_priority()
762 release_sock(sk); in sock_set_priority()
766 void sock_set_sndtimeo(struct sock *sk, s64 secs) in sock_set_sndtimeo() argument
768 lock_sock(sk); in sock_set_sndtimeo()
770 sk->sk_sndtimeo = secs * HZ; in sock_set_sndtimeo()
772 sk->sk_sndtimeo = MAX_SCHEDULE_TIMEOUT; in sock_set_sndtimeo()
773 release_sock(sk); in sock_set_sndtimeo()
777 static void __sock_set_timestamps(struct sock *sk, bool val, bool new, bool ns) in __sock_set_timestamps() argument
780 sock_valbool_flag(sk, SOCK_TSTAMP_NEW, new); in __sock_set_timestamps()
781 sock_valbool_flag(sk, SOCK_RCVTSTAMPNS, ns); in __sock_set_timestamps()
782 sock_set_flag(sk, SOCK_RCVTSTAMP); in __sock_set_timestamps()
783 sock_enable_timestamp(sk, SOCK_TIMESTAMP); in __sock_set_timestamps()
785 sock_reset_flag(sk, SOCK_RCVTSTAMP); in __sock_set_timestamps()
786 sock_reset_flag(sk, SOCK_RCVTSTAMPNS); in __sock_set_timestamps()
790 void sock_enable_timestamps(struct sock *sk) in sock_enable_timestamps() argument
792 lock_sock(sk); in sock_enable_timestamps()
793 __sock_set_timestamps(sk, true, false, true); in sock_enable_timestamps()
794 release_sock(sk); in sock_enable_timestamps()
798 void sock_set_timestamp(struct sock *sk, int optname, bool valbool) in sock_set_timestamp() argument
802 __sock_set_timestamps(sk, valbool, false, false); in sock_set_timestamp()
805 __sock_set_timestamps(sk, valbool, true, false); in sock_set_timestamp()
808 __sock_set_timestamps(sk, valbool, false, true); in sock_set_timestamp()
811 __sock_set_timestamps(sk, valbool, true, true); in sock_set_timestamp()
816 static int sock_timestamping_bind_phc(struct sock *sk, int phc_index) in sock_timestamping_bind_phc() argument
818 struct net *net = sock_net(sk); in sock_timestamping_bind_phc()
824 if (sk->sk_bound_dev_if) in sock_timestamping_bind_phc()
825 dev = dev_get_by_index(net, sk->sk_bound_dev_if); in sock_timestamping_bind_phc()
846 sk->sk_bind_phc = phc_index; in sock_timestamping_bind_phc()
851 int sock_set_timestamping(struct sock *sk, int optname, in sock_set_timestamping() argument
861 !(sk->sk_tsflags & SOF_TIMESTAMPING_OPT_ID)) { in sock_set_timestamping()
862 if (sk->sk_protocol == IPPROTO_TCP && in sock_set_timestamping()
863 sk->sk_type == SOCK_STREAM) { in sock_set_timestamping()
864 if ((1 << sk->sk_state) & in sock_set_timestamping()
867 sk->sk_tskey = tcp_sk(sk)->snd_una; in sock_set_timestamping()
869 sk->sk_tskey = 0; in sock_set_timestamping()
878 ret = sock_timestamping_bind_phc(sk, timestamping.bind_phc); in sock_set_timestamping()
883 sk->sk_tsflags = val; in sock_set_timestamping()
884 sock_valbool_flag(sk, SOCK_TSTAMP_NEW, optname == SO_TIMESTAMPING_NEW); in sock_set_timestamping()
887 sock_enable_timestamp(sk, in sock_set_timestamping()
890 sock_disable_timestamp(sk, in sock_set_timestamping()
895 void sock_set_keepalive(struct sock *sk) in sock_set_keepalive() argument
897 lock_sock(sk); in sock_set_keepalive()
898 if (sk->sk_prot->keepalive) in sock_set_keepalive()
899 sk->sk_prot->keepalive(sk, true); in sock_set_keepalive()
900 sock_valbool_flag(sk, SOCK_KEEPOPEN, true); in sock_set_keepalive()
901 release_sock(sk); in sock_set_keepalive()
905 static void __sock_set_rcvbuf(struct sock *sk, int val) in __sock_set_rcvbuf() argument
911 sk->sk_userlocks |= SOCK_RCVBUF_LOCK; in __sock_set_rcvbuf()
923 WRITE_ONCE(sk->sk_rcvbuf, max_t(int, val * 2, SOCK_MIN_RCVBUF)); in __sock_set_rcvbuf()
926 void sock_set_rcvbuf(struct sock *sk, int val) in sock_set_rcvbuf() argument
928 lock_sock(sk); in sock_set_rcvbuf()
929 __sock_set_rcvbuf(sk, val); in sock_set_rcvbuf()
930 release_sock(sk); in sock_set_rcvbuf()
934 static void __sock_set_mark(struct sock *sk, u32 val) in __sock_set_mark() argument
936 if (val != sk->sk_mark) { in __sock_set_mark()
937 sk->sk_mark = val; in __sock_set_mark()
938 sk_dst_reset(sk); in __sock_set_mark()
942 void sock_set_mark(struct sock *sk, u32 val) in sock_set_mark() argument
944 lock_sock(sk); in sock_set_mark()
945 __sock_set_mark(sk, val); in sock_set_mark()
946 release_sock(sk); in sock_set_mark()
960 struct sock *sk = sock->sk; in sock_setsockopt() local
971 return sock_setbindtodevice(sk, optval, optlen); in sock_setsockopt()
981 lock_sock(sk); in sock_setsockopt()
988 sock_valbool_flag(sk, SOCK_DBG, valbool); in sock_setsockopt()
991 sk->sk_reuse = (valbool ? SK_CAN_REUSE : SK_NO_REUSE); in sock_setsockopt()
994 sk->sk_reuseport = valbool; in sock_setsockopt()
1003 sock_valbool_flag(sk, SOCK_LOCALROUTE, valbool); in sock_setsockopt()
1004 sk_dst_reset(sk); in sock_setsockopt()
1007 sock_valbool_flag(sk, SOCK_BROADCAST, valbool); in sock_setsockopt()
1021 sk->sk_userlocks |= SOCK_SNDBUF_LOCK; in sock_setsockopt()
1022 WRITE_ONCE(sk->sk_sndbuf, in sock_setsockopt()
1025 sk->sk_write_space(sk); in sock_setsockopt()
1047 __sock_set_rcvbuf(sk, min_t(u32, val, sysctl_rmem_max)); in sock_setsockopt()
1059 __sock_set_rcvbuf(sk, max(val, 0)); in sock_setsockopt()
1063 if (sk->sk_prot->keepalive) in sock_setsockopt()
1064 sk->sk_prot->keepalive(sk, valbool); in sock_setsockopt()
1065 sock_valbool_flag(sk, SOCK_KEEPOPEN, valbool); in sock_setsockopt()
1069 sock_valbool_flag(sk, SOCK_URGINLINE, valbool); in sock_setsockopt()
1073 sk->sk_no_check_tx = valbool; in sock_setsockopt()
1078 ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) in sock_setsockopt()
1079 sk->sk_priority = val; in sock_setsockopt()
1094 sock_reset_flag(sk, SOCK_LINGER); in sock_setsockopt()
1098 sk->sk_lingertime = MAX_SCHEDULE_TIMEOUT; in sock_setsockopt()
1101 sk->sk_lingertime = (unsigned int)ling.l_linger * HZ; in sock_setsockopt()
1102 sock_set_flag(sk, SOCK_LINGER); in sock_setsockopt()
1120 sock_set_timestamp(sk, optname, valbool); in sock_setsockopt()
1135 ret = sock_set_timestamping(sk, optname, timestamping); in sock_setsockopt()
1142 ret = sock->ops->set_rcvlowat(sk, val); in sock_setsockopt()
1144 WRITE_ONCE(sk->sk_rcvlowat, val ? : 1); in sock_setsockopt()
1149 ret = sock_set_timeout(&sk->sk_rcvtimeo, optval, in sock_setsockopt()
1155 ret = sock_set_timeout(&sk->sk_sndtimeo, optval, in sock_setsockopt()
1164 ret = sk_attach_filter(&fprog, sk); in sock_setsockopt()
1176 ret = sk_attach_bpf(ufd, sk); in sock_setsockopt()
1185 ret = sk_reuseport_attach_filter(&fprog, sk); in sock_setsockopt()
1197 ret = sk_reuseport_attach_bpf(ufd, sk); in sock_setsockopt()
1202 ret = reuseport_detach_prog(sk); in sock_setsockopt()
1206 ret = sk_detach_filter(sk); in sock_setsockopt()
1210 if (sock_flag(sk, SOCK_FILTER_LOCKED) && !valbool) in sock_setsockopt()
1213 sock_valbool_flag(sk, SOCK_FILTER_LOCKED, valbool); in sock_setsockopt()
1223 if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) { in sock_setsockopt()
1228 __sock_set_mark(sk, val); in sock_setsockopt()
1232 sock_valbool_flag(sk, SOCK_RXQ_OVFL, valbool); in sock_setsockopt()
1236 sock_valbool_flag(sk, SOCK_WIFI_STATUS, valbool); in sock_setsockopt()
1241 ret = sock->ops->set_peek_off(sk, val); in sock_setsockopt()
1247 sock_valbool_flag(sk, SOCK_NOFCS, valbool); in sock_setsockopt()
1251 sock_valbool_flag(sk, SOCK_SELECT_ERR_QUEUE, valbool); in sock_setsockopt()
1257 if ((val > sk->sk_ll_usec) && !capable(CAP_NET_ADMIN)) in sock_setsockopt()
1263 WRITE_ONCE(sk->sk_ll_usec, val); in sock_setsockopt()
1270 WRITE_ONCE(sk->sk_prefer_busy_poll, valbool); in sock_setsockopt()
1273 if (val > READ_ONCE(sk->sk_busy_poll_budget) && !capable(CAP_NET_ADMIN)) { in sock_setsockopt()
1279 WRITE_ONCE(sk->sk_busy_poll_budget, val); in sock_setsockopt()
1295 cmpxchg(&sk->sk_pacing_status, in sock_setsockopt()
1298 sk->sk_max_pacing_rate = ulval; in sock_setsockopt()
1299 sk->sk_pacing_rate = min(sk->sk_pacing_rate, ulval); in sock_setsockopt()
1303 WRITE_ONCE(sk->sk_incoming_cpu, val); in sock_setsockopt()
1308 dst_negative_advice(sk); in sock_setsockopt()
1312 if (sk->sk_family == PF_INET || sk->sk_family == PF_INET6) { in sock_setsockopt()
1313 if (!((sk->sk_type == SOCK_STREAM && in sock_setsockopt()
1314 sk->sk_protocol == IPPROTO_TCP) || in sock_setsockopt()
1315 (sk->sk_type == SOCK_DGRAM && in sock_setsockopt()
1316 sk->sk_protocol == IPPROTO_UDP))) in sock_setsockopt()
1318 } else if (sk->sk_family != PF_RDS) { in sock_setsockopt()
1325 sock_valbool_flag(sk, SOCK_ZEROCOPY, valbool); in sock_setsockopt()
1345 !ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) { in sock_setsockopt()
1349 sock_valbool_flag(sk, SOCK_TXTIME, true); in sock_setsockopt()
1350 sk->sk_clockid = sk_txtime.clockid; in sock_setsockopt()
1351 sk->sk_txtime_deadline_mode = in sock_setsockopt()
1353 sk->sk_txtime_report_errors = in sock_setsockopt()
1358 ret = sock_bindtoindex_locked(sk, val); in sock_setsockopt()
1366 sk->sk_userlocks = val | (sk->sk_userlocks & in sock_setsockopt()
1374 release_sock(sk); in sock_setsockopt()
1379 static const struct cred *sk_get_peer_cred(struct sock *sk) in sk_get_peer_cred() argument
1383 spin_lock(&sk->sk_peer_lock); in sk_get_peer_cred()
1384 cred = get_cred(sk->sk_peer_cred); in sk_get_peer_cred()
1385 spin_unlock(&sk->sk_peer_lock); in sk_get_peer_cred()
1418 struct sock *sk = sock->sk; in sock_getsockopt() local
1444 v.val = sock_flag(sk, SOCK_DBG); in sock_getsockopt()
1448 v.val = sock_flag(sk, SOCK_LOCALROUTE); in sock_getsockopt()
1452 v.val = sock_flag(sk, SOCK_BROADCAST); in sock_getsockopt()
1456 v.val = sk->sk_sndbuf; in sock_getsockopt()
1460 v.val = sk->sk_rcvbuf; in sock_getsockopt()
1464 v.val = sk->sk_reuse; in sock_getsockopt()
1468 v.val = sk->sk_reuseport; in sock_getsockopt()
1472 v.val = sock_flag(sk, SOCK_KEEPOPEN); in sock_getsockopt()
1476 v.val = sk->sk_type; in sock_getsockopt()
1480 v.val = sk->sk_protocol; in sock_getsockopt()
1484 v.val = sk->sk_family; in sock_getsockopt()
1488 v.val = -sock_error(sk); in sock_getsockopt()
1490 v.val = xchg(&sk->sk_err_soft, 0); in sock_getsockopt()
1494 v.val = sock_flag(sk, SOCK_URGINLINE); in sock_getsockopt()
1498 v.val = sk->sk_no_check_tx; in sock_getsockopt()
1502 v.val = sk->sk_priority; in sock_getsockopt()
1507 v.ling.l_onoff = sock_flag(sk, SOCK_LINGER); in sock_getsockopt()
1508 v.ling.l_linger = sk->sk_lingertime / HZ; in sock_getsockopt()
1515 v.val = sock_flag(sk, SOCK_RCVTSTAMP) && in sock_getsockopt()
1516 !sock_flag(sk, SOCK_TSTAMP_NEW) && in sock_getsockopt()
1517 !sock_flag(sk, SOCK_RCVTSTAMPNS); in sock_getsockopt()
1521 v.val = sock_flag(sk, SOCK_RCVTSTAMPNS) && !sock_flag(sk, SOCK_TSTAMP_NEW); in sock_getsockopt()
1525 v.val = sock_flag(sk, SOCK_RCVTSTAMP) && sock_flag(sk, SOCK_TSTAMP_NEW); in sock_getsockopt()
1529 v.val = sock_flag(sk, SOCK_RCVTSTAMPNS) && sock_flag(sk, SOCK_TSTAMP_NEW); in sock_getsockopt()
1534 v.timestamping.flags = sk->sk_tsflags; in sock_getsockopt()
1535 v.timestamping.bind_phc = sk->sk_bind_phc; in sock_getsockopt()
1540 lv = sock_get_timeout(sk->sk_rcvtimeo, &v, SO_RCVTIMEO_OLD == optname); in sock_getsockopt()
1545 lv = sock_get_timeout(sk->sk_sndtimeo, &v, SO_SNDTIMEO_OLD == optname); in sock_getsockopt()
1549 v.val = sk->sk_rcvlowat; in sock_getsockopt()
1566 spin_lock(&sk->sk_peer_lock); in sock_getsockopt()
1567 cred_to_ucred(sk->sk_peer_pid, sk->sk_peer_cred, &peercred); in sock_getsockopt()
1568 spin_unlock(&sk->sk_peer_lock); in sock_getsockopt()
1580 cred = sk_get_peer_cred(sk); in sock_getsockopt()
1617 v.val = sk->sk_state == TCP_LISTEN; in sock_getsockopt()
1628 v.val = sk->sk_mark; in sock_getsockopt()
1632 v.val = sock_flag(sk, SOCK_RXQ_OVFL); in sock_getsockopt()
1636 v.val = sock_flag(sk, SOCK_WIFI_STATUS); in sock_getsockopt()
1643 v.val = sk->sk_peek_off; in sock_getsockopt()
1646 v.val = sock_flag(sk, SOCK_NOFCS); in sock_getsockopt()
1650 return sock_getbindtodevice(sk, optval, optlen, len); in sock_getsockopt()
1653 len = sk_get_filter(sk, (struct sock_filter __user *)optval, len); in sock_getsockopt()
1660 v.val = sock_flag(sk, SOCK_FILTER_LOCKED); in sock_getsockopt()
1668 v.val = sock_flag(sk, SOCK_SELECT_ERR_QUEUE); in sock_getsockopt()
1673 v.val = sk->sk_ll_usec; in sock_getsockopt()
1676 v.val = READ_ONCE(sk->sk_prefer_busy_poll); in sock_getsockopt()
1683 v.ulval = sk->sk_max_pacing_rate; in sock_getsockopt()
1686 v.val = min_t(unsigned long, sk->sk_max_pacing_rate, ~0U); in sock_getsockopt()
1691 v.val = READ_ONCE(sk->sk_incoming_cpu); in sock_getsockopt()
1698 sk_get_meminfo(sk, meminfo); in sock_getsockopt()
1709 v.val = READ_ONCE(sk->sk_napi_id); in sock_getsockopt()
1722 v.val64 = sock_gen_cookie(sk); in sock_getsockopt()
1726 v.val = sock_flag(sk, SOCK_ZEROCOPY); in sock_getsockopt()
1731 v.txtime.clockid = sk->sk_clockid; in sock_getsockopt()
1732 v.txtime.flags |= sk->sk_txtime_deadline_mode ? in sock_getsockopt()
1734 v.txtime.flags |= sk->sk_txtime_report_errors ? in sock_getsockopt()
1739 v.val = sk->sk_bound_dev_if; in sock_getsockopt()
1746 v.val64 = sock_net(sk)->net_cookie; in sock_getsockopt()
1750 v.val = sk->sk_userlocks & SOCK_BUF_LOCK_MASK; in sock_getsockopt()
1775 static inline void sock_lock_init(struct sock *sk) in sock_lock_init() argument
1777 if (sk->sk_kern_sock) in sock_lock_init()
1779 sk, in sock_lock_init()
1780 af_family_kern_slock_key_strings[sk->sk_family], in sock_lock_init()
1781 af_family_kern_slock_keys + sk->sk_family, in sock_lock_init()
1782 af_family_kern_key_strings[sk->sk_family], in sock_lock_init()
1783 af_family_kern_keys + sk->sk_family); in sock_lock_init()
1786 sk, in sock_lock_init()
1787 af_family_slock_key_strings[sk->sk_family], in sock_lock_init()
1788 af_family_slock_keys + sk->sk_family, in sock_lock_init()
1789 af_family_key_strings[sk->sk_family], in sock_lock_init()
1790 af_family_keys + sk->sk_family); in sock_lock_init()
1828 struct sock *sk; in sk_prot_alloc() local
1833 sk = kmem_cache_alloc(slab, priority & ~__GFP_ZERO); in sk_prot_alloc()
1834 if (!sk) in sk_prot_alloc()
1835 return sk; in sk_prot_alloc()
1837 sk_prot_clear_nulls(sk, prot->obj_size); in sk_prot_alloc()
1839 sk = kmalloc(prot->obj_size, priority); in sk_prot_alloc()
1841 if (sk != NULL) { in sk_prot_alloc()
1842 if (security_sk_alloc(sk, family, priority)) in sk_prot_alloc()
1849 return sk; in sk_prot_alloc()
1852 security_sk_free(sk); in sk_prot_alloc()
1855 kmem_cache_free(slab, sk); in sk_prot_alloc()
1857 kfree(sk); in sk_prot_alloc()
1861 static void sk_prot_free(struct proto *prot, struct sock *sk) in sk_prot_free() argument
1869 cgroup_sk_free(&sk->sk_cgrp_data); in sk_prot_free()
1870 mem_cgroup_sk_free(sk); in sk_prot_free()
1871 security_sk_free(sk); in sk_prot_free()
1873 kmem_cache_free(slab, sk); in sk_prot_free()
1875 kfree(sk); in sk_prot_free()
1890 struct sock *sk; in sk_alloc() local
1892 sk = sk_prot_alloc(prot, priority | __GFP_ZERO, family); in sk_alloc()
1893 if (sk) { in sk_alloc()
1894 sk->sk_family = family; in sk_alloc()
1899 sk->sk_prot = sk->sk_prot_creator = prot; in sk_alloc()
1900 sk->sk_kern_sock = kern; in sk_alloc()
1901 sock_lock_init(sk); in sk_alloc()
1902 sk->sk_net_refcnt = kern ? 0 : 1; in sk_alloc()
1903 if (likely(sk->sk_net_refcnt)) { in sk_alloc()
1908 sock_net_set(sk, net); in sk_alloc()
1909 refcount_set(&sk->sk_wmem_alloc, 1); in sk_alloc()
1911 mem_cgroup_sk_alloc(sk); in sk_alloc()
1912 cgroup_sk_alloc(&sk->sk_cgrp_data); in sk_alloc()
1913 sock_update_classid(&sk->sk_cgrp_data); in sk_alloc()
1914 sock_update_netprioidx(&sk->sk_cgrp_data); in sk_alloc()
1915 sk_tx_queue_clear(sk); in sk_alloc()
1918 return sk; in sk_alloc()
1927 struct sock *sk = container_of(head, struct sock, sk_rcu); in __sk_destruct() local
1930 if (sk->sk_destruct) in __sk_destruct()
1931 sk->sk_destruct(sk); in __sk_destruct()
1933 filter = rcu_dereference_check(sk->sk_filter, in __sk_destruct()
1934 refcount_read(&sk->sk_wmem_alloc) == 0); in __sk_destruct()
1936 sk_filter_uncharge(sk, filter); in __sk_destruct()
1937 RCU_INIT_POINTER(sk->sk_filter, NULL); in __sk_destruct()
1940 sock_disable_timestamp(sk, SK_FLAGS_TIMESTAMP); in __sk_destruct()
1943 bpf_sk_storage_free(sk); in __sk_destruct()
1946 if (atomic_read(&sk->sk_omem_alloc)) in __sk_destruct()
1948 __func__, atomic_read(&sk->sk_omem_alloc)); in __sk_destruct()
1950 if (sk->sk_frag.page) { in __sk_destruct()
1951 put_page(sk->sk_frag.page); in __sk_destruct()
1952 sk->sk_frag.page = NULL; in __sk_destruct()
1956 put_cred(sk->sk_peer_cred); in __sk_destruct()
1957 put_pid(sk->sk_peer_pid); in __sk_destruct()
1959 if (likely(sk->sk_net_refcnt)) in __sk_destruct()
1960 put_net(sock_net(sk)); in __sk_destruct()
1961 sk_prot_free(sk->sk_prot_creator, sk); in __sk_destruct()
1964 void sk_destruct(struct sock *sk) in sk_destruct() argument
1966 bool use_call_rcu = sock_flag(sk, SOCK_RCU_FREE); in sk_destruct()
1968 if (rcu_access_pointer(sk->sk_reuseport_cb)) { in sk_destruct()
1969 reuseport_detach_sock(sk); in sk_destruct()
1974 call_rcu(&sk->sk_rcu, __sk_destruct); in sk_destruct()
1976 __sk_destruct(&sk->sk_rcu); in sk_destruct()
1979 static void __sk_free(struct sock *sk) in __sk_free() argument
1981 if (likely(sk->sk_net_refcnt)) in __sk_free()
1982 sock_inuse_add(sock_net(sk), -1); in __sk_free()
1984 if (unlikely(sk->sk_net_refcnt && sock_diag_has_destroy_listeners(sk))) in __sk_free()
1985 sock_diag_broadcast_destroy(sk); in __sk_free()
1987 sk_destruct(sk); in __sk_free()
1990 void sk_free(struct sock *sk) in sk_free() argument
1997 if (refcount_dec_and_test(&sk->sk_wmem_alloc)) in sk_free()
1998 __sk_free(sk); in sk_free()
2002 static void sk_init_common(struct sock *sk) in sk_init_common() argument
2004 skb_queue_head_init(&sk->sk_receive_queue); in sk_init_common()
2005 skb_queue_head_init(&sk->sk_write_queue); in sk_init_common()
2006 skb_queue_head_init(&sk->sk_error_queue); in sk_init_common()
2008 rwlock_init(&sk->sk_callback_lock); in sk_init_common()
2009 lockdep_set_class_and_name(&sk->sk_receive_queue.lock, in sk_init_common()
2010 af_rlock_keys + sk->sk_family, in sk_init_common()
2011 af_family_rlock_key_strings[sk->sk_family]); in sk_init_common()
2012 lockdep_set_class_and_name(&sk->sk_write_queue.lock, in sk_init_common()
2013 af_wlock_keys + sk->sk_family, in sk_init_common()
2014 af_family_wlock_key_strings[sk->sk_family]); in sk_init_common()
2015 lockdep_set_class_and_name(&sk->sk_error_queue.lock, in sk_init_common()
2016 af_elock_keys + sk->sk_family, in sk_init_common()
2017 af_family_elock_key_strings[sk->sk_family]); in sk_init_common()
2018 lockdep_set_class_and_name(&sk->sk_callback_lock, in sk_init_common()
2019 af_callback_keys + sk->sk_family, in sk_init_common()
2020 af_family_clock_key_strings[sk->sk_family]); in sk_init_common()
2030 struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority) in sk_clone_lock() argument
2032 struct proto *prot = READ_ONCE(sk->sk_prot); in sk_clone_lock()
2037 newsk = sk_prot_alloc(prot, priority, sk->sk_family); in sk_clone_lock()
2041 sock_copy(newsk, sk); in sk_clone_lock()
2068 newsk->sk_userlocks = sk->sk_userlocks & ~SOCK_BINDPORT_LOCK; in sk_clone_lock()
2079 filter = rcu_dereference(sk->sk_filter); in sk_clone_lock()
2089 if (unlikely(!is_charged || xfrm_sk_clone_policy(newsk, sk))) { in sk_clone_lock()
2102 if (bpf_sk_storage_clone(sk, newsk)) { in sk_clone_lock()
2145 if (sock_needs_netstamp(sk) && newsk->sk_flags & SK_FLAGS_TIMESTAMP) in sk_clone_lock()
2152 void sk_free_unlock_clone(struct sock *sk) in sk_free_unlock_clone() argument
2156 sk->sk_destruct = NULL; in sk_free_unlock_clone()
2157 bh_unlock_sock(sk); in sk_free_unlock_clone()
2158 sk_free(sk); in sk_free_unlock_clone()
2162 void sk_setup_caps(struct sock *sk, struct dst_entry *dst) in sk_setup_caps() argument
2166 sk_dst_set(sk, dst); in sk_setup_caps()
2167 sk->sk_route_caps = dst->dev->features | sk->sk_route_forced_caps; in sk_setup_caps()
2168 if (sk->sk_route_caps & NETIF_F_GSO) in sk_setup_caps()
2169 sk->sk_route_caps |= NETIF_F_GSO_SOFTWARE; in sk_setup_caps()
2170 sk->sk_route_caps &= ~sk->sk_route_nocaps; in sk_setup_caps()
2171 if (sk_can_gso(sk)) { in sk_setup_caps()
2173 sk->sk_route_caps &= ~NETIF_F_GSO_MASK; in sk_setup_caps()
2175 sk->sk_route_caps |= NETIF_F_SG | NETIF_F_HW_CSUM; in sk_setup_caps()
2176 sk->sk_gso_max_size = dst->dev->gso_max_size; in sk_setup_caps()
2180 sk->sk_gso_max_segs = max_segs; in sk_setup_caps()
2194 struct sock *sk = skb->sk; in sock_wfree() local
2197 if (!sock_flag(sk, SOCK_USE_WRITE_QUEUE)) { in sock_wfree()
2202 WARN_ON(refcount_sub_and_test(len - 1, &sk->sk_wmem_alloc)); in sock_wfree()
2203 sk->sk_write_space(sk); in sock_wfree()
2210 if (refcount_sub_and_test(len, &sk->sk_wmem_alloc)) in sock_wfree()
2211 __sk_free(sk); in sock_wfree()
2220 struct sock *sk = skb->sk; in __sock_wfree() local
2222 if (refcount_sub_and_test(skb->truesize, &sk->sk_wmem_alloc)) in __sock_wfree()
2223 __sk_free(sk); in __sock_wfree()
2226 void skb_set_owner_w(struct sk_buff *skb, struct sock *sk) in skb_set_owner_w() argument
2229 skb->sk = sk; in skb_set_owner_w()
2231 if (unlikely(!sk_fullsock(sk))) { in skb_set_owner_w()
2233 sock_hold(sk); in skb_set_owner_w()
2238 skb_set_hash_from_sk(skb, sk); in skb_set_owner_w()
2244 refcount_add(skb->truesize, &sk->sk_wmem_alloc); in skb_set_owner_w()
2272 if (can_skb_orphan_partial(skb) && skb_set_owner_sk_safe(skb, skb->sk)) in skb_orphan_partial()
2284 struct sock *sk = skb->sk; in sock_rfree() local
2287 atomic_sub(len, &sk->sk_rmem_alloc); in sock_rfree()
2288 sk_mem_uncharge(sk, len); in sock_rfree()
2298 sock_put(skb->sk); in sock_efree()
2308 if (sk_is_refcounted(skb->sk)) in sock_pfree()
2309 sock_gen_put(skb->sk); in sock_pfree()
2314 kuid_t sock_i_uid(struct sock *sk) in sock_i_uid() argument
2318 read_lock_bh(&sk->sk_callback_lock); in sock_i_uid()
2319 uid = sk->sk_socket ? SOCK_INODE(sk->sk_socket)->i_uid : GLOBAL_ROOT_UID; in sock_i_uid()
2320 read_unlock_bh(&sk->sk_callback_lock); in sock_i_uid()
2325 unsigned long sock_i_ino(struct sock *sk) in sock_i_ino() argument
2329 read_lock_bh(&sk->sk_callback_lock); in sock_i_ino()
2330 ino = sk->sk_socket ? SOCK_INODE(sk->sk_socket)->i_ino : 0; in sock_i_ino()
2331 read_unlock_bh(&sk->sk_callback_lock); in sock_i_ino()
2339 struct sk_buff *sock_wmalloc(struct sock *sk, unsigned long size, int force, in sock_wmalloc() argument
2343 refcount_read(&sk->sk_wmem_alloc) < READ_ONCE(sk->sk_sndbuf)) { in sock_wmalloc()
2347 skb_set_owner_w(skb, sk); in sock_wmalloc()
2357 struct sock *sk = skb->sk; in sock_ofree() local
2359 atomic_sub(skb->truesize, &sk->sk_omem_alloc); in sock_ofree()
2362 struct sk_buff *sock_omalloc(struct sock *sk, unsigned long size, in sock_omalloc() argument
2368 if (atomic_read(&sk->sk_omem_alloc) + SKB_TRUESIZE(size) > in sock_omalloc()
2376 atomic_add(skb->truesize, &sk->sk_omem_alloc); in sock_omalloc()
2377 skb->sk = sk; in sock_omalloc()
2385 void *sock_kmalloc(struct sock *sk, int size, gfp_t priority) in sock_kmalloc() argument
2388 atomic_read(&sk->sk_omem_alloc) + size < sysctl_optmem_max) { in sock_kmalloc()
2393 atomic_add(size, &sk->sk_omem_alloc); in sock_kmalloc()
2397 atomic_sub(size, &sk->sk_omem_alloc); in sock_kmalloc()
2407 static inline void __sock_kfree_s(struct sock *sk, void *mem, int size, in __sock_kfree_s() argument
2416 atomic_sub(size, &sk->sk_omem_alloc); in __sock_kfree_s()
2419 void sock_kfree_s(struct sock *sk, void *mem, int size) in sock_kfree_s() argument
2421 __sock_kfree_s(sk, mem, size, false); in sock_kfree_s()
2425 void sock_kzfree_s(struct sock *sk, void *mem, int size) in sock_kzfree_s() argument
2427 __sock_kfree_s(sk, mem, size, true); in sock_kzfree_s()
2434 static long sock_wait_for_wmem(struct sock *sk, long timeo) in sock_wait_for_wmem() argument
2438 sk_clear_bit(SOCKWQ_ASYNC_NOSPACE, sk); in sock_wait_for_wmem()
2444 set_bit(SOCK_NOSPACE, &sk->sk_socket->flags); in sock_wait_for_wmem()
2445 prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); in sock_wait_for_wmem()
2446 if (refcount_read(&sk->sk_wmem_alloc) < READ_ONCE(sk->sk_sndbuf)) in sock_wait_for_wmem()
2448 if (sk->sk_shutdown & SEND_SHUTDOWN) in sock_wait_for_wmem()
2450 if (sk->sk_err) in sock_wait_for_wmem()
2454 finish_wait(sk_sleep(sk), &wait); in sock_wait_for_wmem()
2463 struct sk_buff *sock_alloc_send_pskb(struct sock *sk, unsigned long header_len, in sock_alloc_send_pskb() argument
2471 timeo = sock_sndtimeo(sk, noblock); in sock_alloc_send_pskb()
2473 err = sock_error(sk); in sock_alloc_send_pskb()
2478 if (sk->sk_shutdown & SEND_SHUTDOWN) in sock_alloc_send_pskb()
2481 if (sk_wmem_alloc_get(sk) < READ_ONCE(sk->sk_sndbuf)) in sock_alloc_send_pskb()
2484 sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk); in sock_alloc_send_pskb()
2485 set_bit(SOCK_NOSPACE, &sk->sk_socket->flags); in sock_alloc_send_pskb()
2491 timeo = sock_wait_for_wmem(sk, timeo); in sock_alloc_send_pskb()
2494 errcode, sk->sk_allocation); in sock_alloc_send_pskb()
2496 skb_set_owner_w(skb, sk); in sock_alloc_send_pskb()
2507 struct sk_buff *sock_alloc_send_skb(struct sock *sk, unsigned long size, in sock_alloc_send_skb() argument
2510 return sock_alloc_send_pskb(sk, size, 0, noblock, errcode, 0); in sock_alloc_send_skb()
2514 int __sock_cmsg_send(struct sock *sk, struct msghdr *msg, struct cmsghdr *cmsg, in __sock_cmsg_send() argument
2521 if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) in __sock_cmsg_send()
2539 if (!sock_flag(sk, SOCK_TXTIME)) in __sock_cmsg_send()
2556 int sock_cmsg_send(struct sock *sk, struct msghdr *msg, in sock_cmsg_send() argument
2567 ret = __sock_cmsg_send(sk, msg, cmsg, sockc); in sock_cmsg_send()
2575 static void sk_enter_memory_pressure(struct sock *sk) in sk_enter_memory_pressure() argument
2577 if (!sk->sk_prot->enter_memory_pressure) in sk_enter_memory_pressure()
2580 sk->sk_prot->enter_memory_pressure(sk); in sk_enter_memory_pressure()
2583 static void sk_leave_memory_pressure(struct sock *sk) in sk_leave_memory_pressure() argument
2585 if (sk->sk_prot->leave_memory_pressure) { in sk_leave_memory_pressure()
2586 sk->sk_prot->leave_memory_pressure(sk); in sk_leave_memory_pressure()
2588 unsigned long *memory_pressure = sk->sk_prot->memory_pressure; in sk_leave_memory_pressure()
2641 bool sk_page_frag_refill(struct sock *sk, struct page_frag *pfrag) in sk_page_frag_refill() argument
2643 if (likely(skb_page_frag_refill(32U, pfrag, sk->sk_allocation))) in sk_page_frag_refill()
2646 sk_enter_memory_pressure(sk); in sk_page_frag_refill()
2647 sk_stream_moderate_sndbuf(sk); in sk_page_frag_refill()
2652 void __lock_sock(struct sock *sk) in __lock_sock() argument
2653 __releases(&sk->sk_lock.slock) in __lock_sock()
2654 __acquires(&sk->sk_lock.slock) in __lock_sock()
2659 prepare_to_wait_exclusive(&sk->sk_lock.wq, &wait, in __lock_sock()
2661 spin_unlock_bh(&sk->sk_lock.slock); in __lock_sock()
2663 spin_lock_bh(&sk->sk_lock.slock); in __lock_sock()
2664 if (!sock_owned_by_user(sk)) in __lock_sock()
2667 finish_wait(&sk->sk_lock.wq, &wait); in __lock_sock()
2670 void __release_sock(struct sock *sk) in __release_sock() argument
2671 __releases(&sk->sk_lock.slock) in __release_sock()
2672 __acquires(&sk->sk_lock.slock) in __release_sock()
2676 while ((skb = sk->sk_backlog.head) != NULL) { in __release_sock()
2677 sk->sk_backlog.head = sk->sk_backlog.tail = NULL; in __release_sock()
2679 spin_unlock_bh(&sk->sk_lock.slock); in __release_sock()
2686 sk_backlog_rcv(sk, skb); in __release_sock()
2693 spin_lock_bh(&sk->sk_lock.slock); in __release_sock()
2700 sk->sk_backlog.len = 0; in __release_sock()
2703 void __sk_flush_backlog(struct sock *sk) in __sk_flush_backlog() argument
2705 spin_lock_bh(&sk->sk_lock.slock); in __sk_flush_backlog()
2706 __release_sock(sk); in __sk_flush_backlog()
2707 spin_unlock_bh(&sk->sk_lock.slock); in __sk_flush_backlog()
2721 int sk_wait_data(struct sock *sk, long *timeo, const struct sk_buff *skb) in sk_wait_data() argument
2726 add_wait_queue(sk_sleep(sk), &wait); in sk_wait_data()
2727 sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk); in sk_wait_data()
2728 rc = sk_wait_event(sk, timeo, skb_peek_tail(&sk->sk_receive_queue) != skb, &wait); in sk_wait_data()
2729 sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk); in sk_wait_data()
2730 remove_wait_queue(sk_sleep(sk), &wait); in sk_wait_data()
2744 int __sk_mem_raise_allocated(struct sock *sk, int size, int amt, int kind) in __sk_mem_raise_allocated() argument
2746 struct proto *prot = sk->sk_prot; in __sk_mem_raise_allocated()
2747 long allocated = sk_memory_allocated_add(sk, amt); in __sk_mem_raise_allocated()
2748 bool memcg_charge = mem_cgroup_sockets_enabled && sk->sk_memcg; in __sk_mem_raise_allocated()
2752 !(charged = mem_cgroup_charge_skmem(sk->sk_memcg, amt, in __sk_mem_raise_allocated()
2757 if (allocated <= sk_prot_mem_limits(sk, 0)) { in __sk_mem_raise_allocated()
2758 sk_leave_memory_pressure(sk); in __sk_mem_raise_allocated()
2763 if (allocated > sk_prot_mem_limits(sk, 1)) in __sk_mem_raise_allocated()
2764 sk_enter_memory_pressure(sk); in __sk_mem_raise_allocated()
2767 if (allocated > sk_prot_mem_limits(sk, 2)) in __sk_mem_raise_allocated()
2772 if (atomic_read(&sk->sk_rmem_alloc) < sk_get_rmem0(sk, prot)) in __sk_mem_raise_allocated()
2776 int wmem0 = sk_get_wmem0(sk, prot); in __sk_mem_raise_allocated()
2778 if (sk->sk_type == SOCK_STREAM) { in __sk_mem_raise_allocated()
2779 if (sk->sk_wmem_queued < wmem0) in __sk_mem_raise_allocated()
2781 } else if (refcount_read(&sk->sk_wmem_alloc) < wmem0) { in __sk_mem_raise_allocated()
2786 if (sk_has_memory_pressure(sk)) { in __sk_mem_raise_allocated()
2789 if (!sk_under_memory_pressure(sk)) in __sk_mem_raise_allocated()
2791 alloc = sk_sockets_allocated_read_positive(sk); in __sk_mem_raise_allocated()
2792 if (sk_prot_mem_limits(sk, 2) > alloc * in __sk_mem_raise_allocated()
2793 sk_mem_pages(sk->sk_wmem_queued + in __sk_mem_raise_allocated()
2794 atomic_read(&sk->sk_rmem_alloc) + in __sk_mem_raise_allocated()
2795 sk->sk_forward_alloc)) in __sk_mem_raise_allocated()
2801 if (kind == SK_MEM_SEND && sk->sk_type == SOCK_STREAM) { in __sk_mem_raise_allocated()
2802 sk_stream_moderate_sndbuf(sk); in __sk_mem_raise_allocated()
2807 if (sk->sk_wmem_queued + size >= sk->sk_sndbuf) { in __sk_mem_raise_allocated()
2810 mem_cgroup_charge_skmem(sk->sk_memcg, amt, in __sk_mem_raise_allocated()
2818 trace_sock_exceed_buf_limit(sk, prot, allocated, kind); in __sk_mem_raise_allocated()
2820 sk_memory_allocated_sub(sk, amt); in __sk_mem_raise_allocated()
2823 mem_cgroup_uncharge_skmem(sk->sk_memcg, amt); in __sk_mem_raise_allocated()
2839 int __sk_mem_schedule(struct sock *sk, int size, int kind) in __sk_mem_schedule() argument
2843 sk->sk_forward_alloc += amt << SK_MEM_QUANTUM_SHIFT; in __sk_mem_schedule()
2844 ret = __sk_mem_raise_allocated(sk, size, amt, kind); in __sk_mem_schedule()
2846 sk->sk_forward_alloc -= amt << SK_MEM_QUANTUM_SHIFT; in __sk_mem_schedule()
2858 void __sk_mem_reduce_allocated(struct sock *sk, int amount) in __sk_mem_reduce_allocated() argument
2860 sk_memory_allocated_sub(sk, amount); in __sk_mem_reduce_allocated()
2862 if (mem_cgroup_sockets_enabled && sk->sk_memcg) in __sk_mem_reduce_allocated()
2863 mem_cgroup_uncharge_skmem(sk->sk_memcg, amount); in __sk_mem_reduce_allocated()
2865 if (sk_under_memory_pressure(sk) && in __sk_mem_reduce_allocated()
2866 (sk_memory_allocated(sk) < sk_prot_mem_limits(sk, 0))) in __sk_mem_reduce_allocated()
2867 sk_leave_memory_pressure(sk); in __sk_mem_reduce_allocated()
2876 void __sk_mem_reclaim(struct sock *sk, int amount) in __sk_mem_reclaim() argument
2879 sk->sk_forward_alloc -= amount << SK_MEM_QUANTUM_SHIFT; in __sk_mem_reclaim()
2880 __sk_mem_reduce_allocated(sk, amount); in __sk_mem_reclaim()
2884 int sk_set_peek_off(struct sock *sk, int val) in sk_set_peek_off() argument
2886 sk->sk_peek_off = val; in sk_set_peek_off()
2955 int sock_no_sendmsg_locked(struct sock *sk, struct msghdr *m, size_t len) in sock_no_sendmsg_locked() argument
2985 sock_update_netprioidx(&sock->sk->sk_cgrp_data); in __receive_sock()
2986 sock_update_classid(&sock->sk->sk_cgrp_data); in __receive_sock()
3004 ssize_t sock_no_sendpage_locked(struct sock *sk, struct page *page, in sock_no_sendpage_locked() argument
3014 res = kernel_sendmsg_locked(sk, &msg, &iov, 1, size); in sock_no_sendpage_locked()
3024 static void sock_def_wakeup(struct sock *sk) in sock_def_wakeup() argument
3029 wq = rcu_dereference(sk->sk_wq); in sock_def_wakeup()
3035 static void sock_def_error_report(struct sock *sk) in sock_def_error_report() argument
3040 wq = rcu_dereference(sk->sk_wq); in sock_def_error_report()
3043 sk_wake_async(sk, SOCK_WAKE_IO, POLL_ERR); in sock_def_error_report()
3047 void sock_def_readable(struct sock *sk) in sock_def_readable() argument
3052 wq = rcu_dereference(sk->sk_wq); in sock_def_readable()
3056 sk_wake_async(sk, SOCK_WAKE_WAITD, POLL_IN); in sock_def_readable()
3060 static void sock_def_write_space(struct sock *sk) in sock_def_write_space() argument
3069 if ((refcount_read(&sk->sk_wmem_alloc) << 1) <= READ_ONCE(sk->sk_sndbuf)) { in sock_def_write_space()
3070 wq = rcu_dereference(sk->sk_wq); in sock_def_write_space()
3076 if (sock_writeable(sk)) in sock_def_write_space()
3077 sk_wake_async(sk, SOCK_WAKE_SPACE, POLL_OUT); in sock_def_write_space()
3083 static void sock_def_destruct(struct sock *sk) in sock_def_destruct() argument
3087 void sk_send_sigurg(struct sock *sk) in sk_send_sigurg() argument
3089 if (sk->sk_socket && sk->sk_socket->file) in sk_send_sigurg()
3090 if (send_sigurg(&sk->sk_socket->file->f_owner)) in sk_send_sigurg()
3091 sk_wake_async(sk, SOCK_WAKE_URG, POLL_PRI); in sk_send_sigurg()
3095 void sk_reset_timer(struct sock *sk, struct timer_list* timer, in sk_reset_timer() argument
3099 sock_hold(sk); in sk_reset_timer()
3103 void sk_stop_timer(struct sock *sk, struct timer_list* timer) in sk_stop_timer() argument
3106 __sock_put(sk); in sk_stop_timer()
3110 void sk_stop_timer_sync(struct sock *sk, struct timer_list *timer) in sk_stop_timer_sync() argument
3113 __sock_put(sk); in sk_stop_timer_sync()
3117 void sock_init_data(struct socket *sock, struct sock *sk) in sock_init_data() argument
3119 sk_init_common(sk); in sock_init_data()
3120 sk->sk_send_head = NULL; in sock_init_data()
3122 timer_setup(&sk->sk_timer, NULL, 0); in sock_init_data()
3124 sk->sk_allocation = GFP_KERNEL; in sock_init_data()
3125 sk->sk_rcvbuf = sysctl_rmem_default; in sock_init_data()
3126 sk->sk_sndbuf = sysctl_wmem_default; in sock_init_data()
3127 sk->sk_state = TCP_CLOSE; in sock_init_data()
3128 sk_set_socket(sk, sock); in sock_init_data()
3130 sock_set_flag(sk, SOCK_ZAPPED); in sock_init_data()
3133 sk->sk_type = sock->type; in sock_init_data()
3134 RCU_INIT_POINTER(sk->sk_wq, &sock->wq); in sock_init_data()
3135 sock->sk = sk; in sock_init_data()
3136 sk->sk_uid = SOCK_INODE(sock)->i_uid; in sock_init_data()
3138 RCU_INIT_POINTER(sk->sk_wq, NULL); in sock_init_data()
3139 sk->sk_uid = make_kuid(sock_net(sk)->user_ns, 0); in sock_init_data()
3142 rwlock_init(&sk->sk_callback_lock); in sock_init_data()
3143 if (sk->sk_kern_sock) in sock_init_data()
3145 &sk->sk_callback_lock, in sock_init_data()
3146 af_kern_callback_keys + sk->sk_family, in sock_init_data()
3147 af_family_kern_clock_key_strings[sk->sk_family]); in sock_init_data()
3150 &sk->sk_callback_lock, in sock_init_data()
3151 af_callback_keys + sk->sk_family, in sock_init_data()
3152 af_family_clock_key_strings[sk->sk_family]); in sock_init_data()
3154 sk->sk_state_change = sock_def_wakeup; in sock_init_data()
3155 sk->sk_data_ready = sock_def_readable; in sock_init_data()
3156 sk->sk_write_space = sock_def_write_space; in sock_init_data()
3157 sk->sk_error_report = sock_def_error_report; in sock_init_data()
3158 sk->sk_destruct = sock_def_destruct; in sock_init_data()
3160 sk->sk_frag.page = NULL; in sock_init_data()
3161 sk->sk_frag.offset = 0; in sock_init_data()
3162 sk->sk_peek_off = -1; in sock_init_data()
3164 sk->sk_peer_pid = NULL; in sock_init_data()
3165 sk->sk_peer_cred = NULL; in sock_init_data()
3166 spin_lock_init(&sk->sk_peer_lock); in sock_init_data()
3168 sk->sk_write_pending = 0; in sock_init_data()
3169 sk->sk_rcvlowat = 1; in sock_init_data()
3170 sk->sk_rcvtimeo = MAX_SCHEDULE_TIMEOUT; in sock_init_data()
3171 sk->sk_sndtimeo = MAX_SCHEDULE_TIMEOUT; in sock_init_data()
3173 sk->sk_stamp = SK_DEFAULT_STAMP; in sock_init_data()
3175 seqlock_init(&sk->sk_stamp_seq); in sock_init_data()
3177 atomic_set(&sk->sk_zckey, 0); in sock_init_data()
3180 sk->sk_napi_id = 0; in sock_init_data()
3181 sk->sk_ll_usec = sysctl_net_busy_read; in sock_init_data()
3184 sk->sk_max_pacing_rate = ~0UL; in sock_init_data()
3185 sk->sk_pacing_rate = ~0UL; in sock_init_data()
3186 WRITE_ONCE(sk->sk_pacing_shift, 10); in sock_init_data()
3187 sk->sk_incoming_cpu = -1; in sock_init_data()
3189 sk_rx_queue_clear(sk); in sock_init_data()
3195 refcount_set(&sk->sk_refcnt, 1); in sock_init_data()
3196 atomic_set(&sk->sk_drops, 0); in sock_init_data()
3200 void lock_sock_nested(struct sock *sk, int subclass) in lock_sock_nested() argument
3203 mutex_acquire(&sk->sk_lock.dep_map, subclass, 0, _RET_IP_); in lock_sock_nested()
3206 spin_lock_bh(&sk->sk_lock.slock); in lock_sock_nested()
3207 if (sk->sk_lock.owned) in lock_sock_nested()
3208 __lock_sock(sk); in lock_sock_nested()
3209 sk->sk_lock.owned = 1; in lock_sock_nested()
3210 spin_unlock_bh(&sk->sk_lock.slock); in lock_sock_nested()
3214 void release_sock(struct sock *sk) in release_sock() argument
3216 spin_lock_bh(&sk->sk_lock.slock); in release_sock()
3217 if (sk->sk_backlog.tail) in release_sock()
3218 __release_sock(sk); in release_sock()
3223 if (sk->sk_prot->release_cb) in release_sock()
3224 sk->sk_prot->release_cb(sk); in release_sock()
3226 sock_release_ownership(sk); in release_sock()
3227 if (waitqueue_active(&sk->sk_lock.wq)) in release_sock()
3228 wake_up(&sk->sk_lock.wq); in release_sock()
3229 spin_unlock_bh(&sk->sk_lock.slock); in release_sock()
3233 bool __lock_sock_fast(struct sock *sk) __acquires(&sk->sk_lock.slock) in __lock_sock_fast() argument
3236 spin_lock_bh(&sk->sk_lock.slock); in __lock_sock_fast()
3238 if (!sk->sk_lock.owned) { in __lock_sock_fast()
3257 __lock_sock(sk); in __lock_sock_fast()
3258 sk->sk_lock.owned = 1; in __lock_sock_fast()
3259 __acquire(&sk->sk_lock.slock); in __lock_sock_fast()
3260 spin_unlock_bh(&sk->sk_lock.slock); in __lock_sock_fast()
3268 struct sock *sk = sock->sk; in sock_gettstamp() local
3271 sock_enable_timestamp(sk, SOCK_TIMESTAMP); in sock_gettstamp()
3272 ts = ktime_to_timespec64(sock_read_timestamp(sk)); in sock_gettstamp()
3277 sock_write_timestamp(sk, kt); in sock_gettstamp()
3304 void sock_enable_timestamp(struct sock *sk, enum sock_flags flag) in sock_enable_timestamp() argument
3306 if (!sock_flag(sk, flag)) { in sock_enable_timestamp()
3307 unsigned long previous_flags = sk->sk_flags; in sock_enable_timestamp()
3309 sock_set_flag(sk, flag); in sock_enable_timestamp()
3315 if (sock_needs_netstamp(sk) && in sock_enable_timestamp()
3321 int sock_recv_errqueue(struct sock *sk, struct msghdr *msg, int len, in sock_recv_errqueue() argument
3329 skb = sock_dequeue_err_skb(sk); in sock_recv_errqueue()
3342 sock_recv_timestamp(msg, sk, skb); in sock_recv_errqueue()
3367 struct sock *sk = sock->sk; in sock_common_getsockopt() local
3369 return sk->sk_prot->getsockopt(sk, level, optname, optval, optlen); in sock_common_getsockopt()
3376 struct sock *sk = sock->sk; in sock_common_recvmsg() local
3380 err = sk->sk_prot->recvmsg(sk, msg, size, flags & MSG_DONTWAIT, in sock_common_recvmsg()
3394 struct sock *sk = sock->sk; in sock_common_setsockopt() local
3396 return sk->sk_prot->setsockopt(sk, level, optname, optval, optlen); in sock_common_setsockopt()
3400 void sk_common_release(struct sock *sk) in sk_common_release() argument
3402 if (sk->sk_prot->destroy) in sk_common_release()
3403 sk->sk_prot->destroy(sk); in sk_common_release()
3413 sk->sk_prot->unhash(sk); in sk_common_release()
3427 sock_orphan(sk); in sk_common_release()
3429 xfrm_sk_free_policy(sk); in sk_common_release()
3431 sk_refcnt_debug_release(sk); in sk_common_release()
3433 sock_put(sk); in sk_common_release()
3437 void sk_get_meminfo(const struct sock *sk, u32 *mem) in sk_get_meminfo() argument
3441 mem[SK_MEMINFO_RMEM_ALLOC] = sk_rmem_alloc_get(sk); in sk_get_meminfo()
3442 mem[SK_MEMINFO_RCVBUF] = READ_ONCE(sk->sk_rcvbuf); in sk_get_meminfo()
3443 mem[SK_MEMINFO_WMEM_ALLOC] = sk_wmem_alloc_get(sk); in sk_get_meminfo()
3444 mem[SK_MEMINFO_SNDBUF] = READ_ONCE(sk->sk_sndbuf); in sk_get_meminfo()
3445 mem[SK_MEMINFO_FWD_ALLOC] = sk->sk_forward_alloc; in sk_get_meminfo()
3446 mem[SK_MEMINFO_WMEM_QUEUED] = READ_ONCE(sk->sk_wmem_queued); in sk_get_meminfo()
3447 mem[SK_MEMINFO_OPTMEM] = atomic_read(&sk->sk_omem_alloc); in sk_get_meminfo()
3448 mem[SK_MEMINFO_BACKLOG] = READ_ONCE(sk->sk_backlog.len); in sk_get_meminfo()
3449 mem[SK_MEMINFO_DROPS] = atomic_read(&sk->sk_drops); in sk_get_meminfo()
3850 struct sock *sk = p; in sk_busy_loop_end() local
3852 return !skb_queue_empty_lockless(&sk->sk_receive_queue) || in sk_busy_loop_end()
3853 sk_busy_loop_timeout(sk, start_time); in sk_busy_loop_end()
3858 int sock_bind_add(struct sock *sk, struct sockaddr *addr, int addr_len) in sock_bind_add() argument
3860 if (!sk->sk_prot->bind_add) in sock_bind_add()
3862 return sk->sk_prot->bind_add(sk, addr, addr_len); in sock_bind_add()