Lines Matching refs:sk
156 bool sk_ns_capable(const struct sock *sk, in sk_ns_capable() argument
159 return file_ns_capable(sk->sk_socket->file, user_ns, cap) && in sk_ns_capable()
173 bool sk_capable(const struct sock *sk, int cap) in sk_capable() argument
175 return sk_ns_capable(sk, &init_user_ns, cap); in sk_capable()
188 bool sk_net_capable(const struct sock *sk, int cap) in sk_net_capable() argument
190 return sk_ns_capable(sk, sock_net(sk)->user_ns, cap); in sk_net_capable()
292 void sk_set_memalloc(struct sock *sk) in sk_set_memalloc() argument
294 sock_set_flag(sk, SOCK_MEMALLOC); in sk_set_memalloc()
295 sk->sk_allocation |= __GFP_MEMALLOC; in sk_set_memalloc()
300 void sk_clear_memalloc(struct sock *sk) in sk_clear_memalloc() argument
302 sock_reset_flag(sk, SOCK_MEMALLOC); in sk_clear_memalloc()
303 sk->sk_allocation &= ~__GFP_MEMALLOC; in sk_clear_memalloc()
313 sk_mem_reclaim(sk); in sk_clear_memalloc()
317 int __sk_backlog_rcv(struct sock *sk, struct sk_buff *skb) in __sk_backlog_rcv() argument
323 BUG_ON(!sock_flag(sk, SOCK_MEMALLOC)); in __sk_backlog_rcv()
326 ret = sk->sk_backlog_rcv(sk, skb); in __sk_backlog_rcv()
429 static bool sock_needs_netstamp(const struct sock *sk) in sock_needs_netstamp() argument
431 switch (sk->sk_family) { in sock_needs_netstamp()
440 static void sock_disable_timestamp(struct sock *sk, unsigned long flags) in sock_disable_timestamp() argument
442 if (sk->sk_flags & flags) { in sock_disable_timestamp()
443 sk->sk_flags &= ~flags; in sock_disable_timestamp()
444 if (sock_needs_netstamp(sk) && in sock_disable_timestamp()
445 !(sk->sk_flags & SK_FLAGS_TIMESTAMP)) in sock_disable_timestamp()
451 int __sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) in __sock_queue_rcv_skb() argument
454 struct sk_buff_head *list = &sk->sk_receive_queue; in __sock_queue_rcv_skb()
456 if (atomic_read(&sk->sk_rmem_alloc) >= sk->sk_rcvbuf) { in __sock_queue_rcv_skb()
457 atomic_inc(&sk->sk_drops); in __sock_queue_rcv_skb()
458 trace_sock_rcvqueue_full(sk, skb); in __sock_queue_rcv_skb()
462 if (!sk_rmem_schedule(sk, skb, skb->truesize)) { in __sock_queue_rcv_skb()
463 atomic_inc(&sk->sk_drops); in __sock_queue_rcv_skb()
468 skb_set_owner_r(skb, sk); in __sock_queue_rcv_skb()
476 sock_skb_set_dropcount(sk, skb); in __sock_queue_rcv_skb()
480 if (!sock_flag(sk, SOCK_DEAD)) in __sock_queue_rcv_skb()
481 sk->sk_data_ready(sk); in __sock_queue_rcv_skb()
486 int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb) in sock_queue_rcv_skb() argument
490 err = sk_filter(sk, skb); in sock_queue_rcv_skb()
494 return __sock_queue_rcv_skb(sk, skb); in sock_queue_rcv_skb()
498 int __sk_receive_skb(struct sock *sk, struct sk_buff *skb, in __sk_receive_skb() argument
503 if (sk_filter_trim_cap(sk, skb, trim_cap)) in __sk_receive_skb()
508 if (sk_rcvqueues_full(sk, sk->sk_rcvbuf)) { in __sk_receive_skb()
509 atomic_inc(&sk->sk_drops); in __sk_receive_skb()
513 bh_lock_sock_nested(sk); in __sk_receive_skb()
515 bh_lock_sock(sk); in __sk_receive_skb()
516 if (!sock_owned_by_user(sk)) { in __sk_receive_skb()
520 mutex_acquire(&sk->sk_lock.dep_map, 0, 1, _RET_IP_); in __sk_receive_skb()
522 rc = sk_backlog_rcv(sk, skb); in __sk_receive_skb()
524 mutex_release(&sk->sk_lock.dep_map, 1, _RET_IP_); in __sk_receive_skb()
525 } else if (sk_add_backlog(sk, skb, READ_ONCE(sk->sk_rcvbuf))) { in __sk_receive_skb()
526 bh_unlock_sock(sk); in __sk_receive_skb()
527 atomic_inc(&sk->sk_drops); in __sk_receive_skb()
531 bh_unlock_sock(sk); in __sk_receive_skb()
534 sock_put(sk); in __sk_receive_skb()
542 struct dst_entry *__sk_dst_check(struct sock *sk, u32 cookie) in __sk_dst_check() argument
544 struct dst_entry *dst = __sk_dst_get(sk); in __sk_dst_check()
547 sk_tx_queue_clear(sk); in __sk_dst_check()
548 sk->sk_dst_pending_confirm = 0; in __sk_dst_check()
549 RCU_INIT_POINTER(sk->sk_dst_cache, NULL); in __sk_dst_check()
558 struct dst_entry *sk_dst_check(struct sock *sk, u32 cookie) in sk_dst_check() argument
560 struct dst_entry *dst = sk_dst_get(sk); in sk_dst_check()
563 sk_dst_reset(sk); in sk_dst_check()
572 static int sock_setbindtodevice_locked(struct sock *sk, int ifindex) in sock_setbindtodevice_locked() argument
576 struct net *net = sock_net(sk); in sock_setbindtodevice_locked()
587 sk->sk_bound_dev_if = ifindex; in sock_setbindtodevice_locked()
588 if (sk->sk_prot->rehash) in sock_setbindtodevice_locked()
589 sk->sk_prot->rehash(sk); in sock_setbindtodevice_locked()
590 sk_dst_reset(sk); in sock_setbindtodevice_locked()
600 static int sock_setbindtodevice(struct sock *sk, char __user *optval, in sock_setbindtodevice() argument
605 struct net *net = sock_net(sk); in sock_setbindtodevice()
640 lock_sock(sk); in sock_setbindtodevice()
641 ret = sock_setbindtodevice_locked(sk, index); in sock_setbindtodevice()
642 release_sock(sk); in sock_setbindtodevice()
650 static int sock_getbindtodevice(struct sock *sk, char __user *optval, in sock_getbindtodevice() argument
655 struct net *net = sock_net(sk); in sock_getbindtodevice()
658 if (sk->sk_bound_dev_if == 0) { in sock_getbindtodevice()
667 ret = netdev_get_name(net, devname, sk->sk_bound_dev_if); in sock_getbindtodevice()
690 static inline void sock_valbool_flag(struct sock *sk, int bit, int valbool) in sock_valbool_flag() argument
693 sock_set_flag(sk, bit); in sock_valbool_flag()
695 sock_reset_flag(sk, bit); in sock_valbool_flag()
698 bool sk_mc_loop(struct sock *sk) in sk_mc_loop() argument
702 if (!sk) in sk_mc_loop()
704 switch (sk->sk_family) { in sk_mc_loop()
706 return inet_sk(sk)->mc_loop; in sk_mc_loop()
709 return inet6_sk(sk)->mc_loop; in sk_mc_loop()
726 struct sock *sk = sock->sk; in sock_setsockopt() local
737 return sock_setbindtodevice(sk, optval, optlen); in sock_setsockopt()
747 lock_sock(sk); in sock_setsockopt()
754 sock_valbool_flag(sk, SOCK_DBG, valbool); in sock_setsockopt()
757 sk->sk_reuse = (valbool ? SK_CAN_REUSE : SK_NO_REUSE); in sock_setsockopt()
760 sk->sk_reuseport = valbool; in sock_setsockopt()
769 sock_valbool_flag(sk, SOCK_LOCALROUTE, valbool); in sock_setsockopt()
770 sk_dst_reset(sk); in sock_setsockopt()
773 sock_valbool_flag(sk, SOCK_BROADCAST, valbool); in sock_setsockopt()
787 sk->sk_userlocks |= SOCK_SNDBUF_LOCK; in sock_setsockopt()
788 WRITE_ONCE(sk->sk_sndbuf, in sock_setsockopt()
791 sk->sk_write_space(sk); in sock_setsockopt()
819 sk->sk_userlocks |= SOCK_RCVBUF_LOCK; in sock_setsockopt()
835 WRITE_ONCE(sk->sk_rcvbuf, in sock_setsockopt()
853 if (sk->sk_prot->keepalive) in sock_setsockopt()
854 sk->sk_prot->keepalive(sk, valbool); in sock_setsockopt()
855 sock_valbool_flag(sk, SOCK_KEEPOPEN, valbool); in sock_setsockopt()
859 sock_valbool_flag(sk, SOCK_URGINLINE, valbool); in sock_setsockopt()
863 sk->sk_no_check_tx = valbool; in sock_setsockopt()
868 ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) in sock_setsockopt()
869 sk->sk_priority = val; in sock_setsockopt()
884 sock_reset_flag(sk, SOCK_LINGER); in sock_setsockopt()
888 sk->sk_lingertime = MAX_SCHEDULE_TIMEOUT; in sock_setsockopt()
891 sk->sk_lingertime = (unsigned int)ling.l_linger * HZ; in sock_setsockopt()
892 sock_set_flag(sk, SOCK_LINGER); in sock_setsockopt()
913 sock_set_flag(sk, SOCK_TSTAMP_NEW); in sock_setsockopt()
915 sock_reset_flag(sk, SOCK_TSTAMP_NEW); in sock_setsockopt()
918 sock_reset_flag(sk, SOCK_RCVTSTAMPNS); in sock_setsockopt()
920 sock_set_flag(sk, SOCK_RCVTSTAMPNS); in sock_setsockopt()
921 sock_set_flag(sk, SOCK_RCVTSTAMP); in sock_setsockopt()
922 sock_enable_timestamp(sk, SOCK_TIMESTAMP); in sock_setsockopt()
924 sock_reset_flag(sk, SOCK_RCVTSTAMP); in sock_setsockopt()
925 sock_reset_flag(sk, SOCK_RCVTSTAMPNS); in sock_setsockopt()
926 sock_reset_flag(sk, SOCK_TSTAMP_NEW); in sock_setsockopt()
931 sock_set_flag(sk, SOCK_TSTAMP_NEW); in sock_setsockopt()
940 !(sk->sk_tsflags & SOF_TIMESTAMPING_OPT_ID)) { in sock_setsockopt()
941 if (sk->sk_protocol == IPPROTO_TCP && in sock_setsockopt()
942 sk->sk_type == SOCK_STREAM) { in sock_setsockopt()
943 if ((1 << sk->sk_state) & in sock_setsockopt()
948 sk->sk_tskey = tcp_sk(sk)->snd_una; in sock_setsockopt()
950 sk->sk_tskey = 0; in sock_setsockopt()
960 sk->sk_tsflags = val; in sock_setsockopt()
962 sock_enable_timestamp(sk, in sock_setsockopt()
966 sock_reset_flag(sk, SOCK_TSTAMP_NEW); in sock_setsockopt()
968 sock_disable_timestamp(sk, in sock_setsockopt()
977 ret = sock->ops->set_rcvlowat(sk, val); in sock_setsockopt()
979 WRITE_ONCE(sk->sk_rcvlowat, val ? : 1); in sock_setsockopt()
984 ret = sock_set_timeout(&sk->sk_rcvtimeo, optval, optlen, optname == SO_RCVTIMEO_OLD); in sock_setsockopt()
989 ret = sock_set_timeout(&sk->sk_sndtimeo, optval, optlen, optname == SO_SNDTIMEO_OLD); in sock_setsockopt()
1001 ret = sk_attach_filter(&fprog, sk); in sock_setsockopt()
1014 ret = sk_attach_bpf(ufd, sk); in sock_setsockopt()
1027 ret = sk_reuseport_attach_filter(&fprog, sk); in sock_setsockopt()
1040 ret = sk_reuseport_attach_bpf(ufd, sk); in sock_setsockopt()
1045 ret = reuseport_detach_prog(sk); in sock_setsockopt()
1049 ret = sk_detach_filter(sk); in sock_setsockopt()
1053 if (sock_flag(sk, SOCK_FILTER_LOCKED) && !valbool) in sock_setsockopt()
1056 sock_valbool_flag(sk, SOCK_FILTER_LOCKED, valbool); in sock_setsockopt()
1066 if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) { in sock_setsockopt()
1068 } else if (val != sk->sk_mark) { in sock_setsockopt()
1069 sk->sk_mark = val; in sock_setsockopt()
1070 sk_dst_reset(sk); in sock_setsockopt()
1075 sock_valbool_flag(sk, SOCK_RXQ_OVFL, valbool); in sock_setsockopt()
1079 sock_valbool_flag(sk, SOCK_WIFI_STATUS, valbool); in sock_setsockopt()
1084 ret = sock->ops->set_peek_off(sk, val); in sock_setsockopt()
1090 sock_valbool_flag(sk, SOCK_NOFCS, valbool); in sock_setsockopt()
1094 sock_valbool_flag(sk, SOCK_SELECT_ERR_QUEUE, valbool); in sock_setsockopt()
1100 if ((val > sk->sk_ll_usec) && !capable(CAP_NET_ADMIN)) in sock_setsockopt()
1106 sk->sk_ll_usec = val; in sock_setsockopt()
1122 cmpxchg(&sk->sk_pacing_status, in sock_setsockopt()
1125 sk->sk_max_pacing_rate = ulval; in sock_setsockopt()
1126 sk->sk_pacing_rate = min(sk->sk_pacing_rate, ulval); in sock_setsockopt()
1130 WRITE_ONCE(sk->sk_incoming_cpu, val); in sock_setsockopt()
1135 dst_negative_advice(sk); in sock_setsockopt()
1139 if (sk->sk_family == PF_INET || sk->sk_family == PF_INET6) { in sock_setsockopt()
1140 if (!((sk->sk_type == SOCK_STREAM && in sock_setsockopt()
1141 sk->sk_protocol == IPPROTO_TCP) || in sock_setsockopt()
1142 (sk->sk_type == SOCK_DGRAM && in sock_setsockopt()
1143 sk->sk_protocol == IPPROTO_UDP))) in sock_setsockopt()
1145 } else if (sk->sk_family != PF_RDS) { in sock_setsockopt()
1152 sock_valbool_flag(sk, SOCK_ZEROCOPY, valbool); in sock_setsockopt()
1157 if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) { in sock_setsockopt()
1167 sock_valbool_flag(sk, SOCK_TXTIME, true); in sock_setsockopt()
1168 sk->sk_clockid = sk_txtime.clockid; in sock_setsockopt()
1169 sk->sk_txtime_deadline_mode = in sock_setsockopt()
1171 sk->sk_txtime_report_errors = in sock_setsockopt()
1177 ret = sock_setbindtodevice_locked(sk, val); in sock_setsockopt()
1184 release_sock(sk); in sock_setsockopt()
1218 struct sock *sk = sock->sk; in sock_getsockopt() local
1243 v.val = sock_flag(sk, SOCK_DBG); in sock_getsockopt()
1247 v.val = sock_flag(sk, SOCK_LOCALROUTE); in sock_getsockopt()
1251 v.val = sock_flag(sk, SOCK_BROADCAST); in sock_getsockopt()
1255 v.val = sk->sk_sndbuf; in sock_getsockopt()
1259 v.val = sk->sk_rcvbuf; in sock_getsockopt()
1263 v.val = sk->sk_reuse; in sock_getsockopt()
1267 v.val = sk->sk_reuseport; in sock_getsockopt()
1271 v.val = sock_flag(sk, SOCK_KEEPOPEN); in sock_getsockopt()
1275 v.val = sk->sk_type; in sock_getsockopt()
1279 v.val = sk->sk_protocol; in sock_getsockopt()
1283 v.val = sk->sk_family; in sock_getsockopt()
1287 v.val = -sock_error(sk); in sock_getsockopt()
1289 v.val = xchg(&sk->sk_err_soft, 0); in sock_getsockopt()
1293 v.val = sock_flag(sk, SOCK_URGINLINE); in sock_getsockopt()
1297 v.val = sk->sk_no_check_tx; in sock_getsockopt()
1301 v.val = sk->sk_priority; in sock_getsockopt()
1306 v.ling.l_onoff = sock_flag(sk, SOCK_LINGER); in sock_getsockopt()
1307 v.ling.l_linger = sk->sk_lingertime / HZ; in sock_getsockopt()
1315 v.val = sock_flag(sk, SOCK_RCVTSTAMP) && in sock_getsockopt()
1316 !sock_flag(sk, SOCK_TSTAMP_NEW) && in sock_getsockopt()
1317 !sock_flag(sk, SOCK_RCVTSTAMPNS); in sock_getsockopt()
1321 v.val = sock_flag(sk, SOCK_RCVTSTAMPNS) && !sock_flag(sk, SOCK_TSTAMP_NEW); in sock_getsockopt()
1325 v.val = sock_flag(sk, SOCK_RCVTSTAMP) && sock_flag(sk, SOCK_TSTAMP_NEW); in sock_getsockopt()
1329 v.val = sock_flag(sk, SOCK_RCVTSTAMPNS) && sock_flag(sk, SOCK_TSTAMP_NEW); in sock_getsockopt()
1333 v.val = sk->sk_tsflags; in sock_getsockopt()
1338 lv = sock_get_timeout(sk->sk_rcvtimeo, &v, SO_RCVTIMEO_OLD == optname); in sock_getsockopt()
1343 lv = sock_get_timeout(sk->sk_sndtimeo, &v, SO_SNDTIMEO_OLD == optname); in sock_getsockopt()
1347 v.val = sk->sk_rcvlowat; in sock_getsockopt()
1363 cred_to_ucred(sk->sk_peer_pid, sk->sk_peer_cred, &peercred); in sock_getsockopt()
1373 if (!sk->sk_peer_cred) in sock_getsockopt()
1376 n = sk->sk_peer_cred->group_info->ngroups; in sock_getsockopt()
1384 sk->sk_peer_cred->group_info); in sock_getsockopt()
1408 v.val = sk->sk_state == TCP_LISTEN; in sock_getsockopt()
1419 v.val = sk->sk_mark; in sock_getsockopt()
1423 v.val = sock_flag(sk, SOCK_RXQ_OVFL); in sock_getsockopt()
1427 v.val = sock_flag(sk, SOCK_WIFI_STATUS); in sock_getsockopt()
1434 v.val = sk->sk_peek_off; in sock_getsockopt()
1437 v.val = sock_flag(sk, SOCK_NOFCS); in sock_getsockopt()
1441 return sock_getbindtodevice(sk, optval, optlen, len); in sock_getsockopt()
1444 len = sk_get_filter(sk, (struct sock_filter __user *)optval, len); in sock_getsockopt()
1451 v.val = sock_flag(sk, SOCK_FILTER_LOCKED); in sock_getsockopt()
1459 v.val = sock_flag(sk, SOCK_SELECT_ERR_QUEUE); in sock_getsockopt()
1464 v.val = sk->sk_ll_usec; in sock_getsockopt()
1471 v.ulval = sk->sk_max_pacing_rate; in sock_getsockopt()
1474 v.val = min_t(unsigned long, sk->sk_max_pacing_rate, ~0U); in sock_getsockopt()
1479 v.val = READ_ONCE(sk->sk_incoming_cpu); in sock_getsockopt()
1486 sk_get_meminfo(sk, meminfo); in sock_getsockopt()
1497 v.val = READ_ONCE(sk->sk_napi_id); in sock_getsockopt()
1510 v.val64 = sock_gen_cookie(sk); in sock_getsockopt()
1514 v.val = sock_flag(sk, SOCK_ZEROCOPY); in sock_getsockopt()
1519 v.txtime.clockid = sk->sk_clockid; in sock_getsockopt()
1520 v.txtime.flags |= sk->sk_txtime_deadline_mode ? in sock_getsockopt()
1522 v.txtime.flags |= sk->sk_txtime_report_errors ? in sock_getsockopt()
1527 v.val = sk->sk_bound_dev_if; in sock_getsockopt()
1552 static inline void sock_lock_init(struct sock *sk) in sock_lock_init() argument
1554 if (sk->sk_kern_sock) in sock_lock_init()
1556 sk, in sock_lock_init()
1557 af_family_kern_slock_key_strings[sk->sk_family], in sock_lock_init()
1558 af_family_kern_slock_keys + sk->sk_family, in sock_lock_init()
1559 af_family_kern_key_strings[sk->sk_family], in sock_lock_init()
1560 af_family_kern_keys + sk->sk_family); in sock_lock_init()
1563 sk, in sock_lock_init()
1564 af_family_slock_key_strings[sk->sk_family], in sock_lock_init()
1565 af_family_slock_keys + sk->sk_family, in sock_lock_init()
1566 af_family_key_strings[sk->sk_family], in sock_lock_init()
1567 af_family_keys + sk->sk_family); in sock_lock_init()
1594 struct sock *sk; in sk_prot_alloc() local
1599 sk = kmem_cache_alloc(slab, priority & ~__GFP_ZERO); in sk_prot_alloc()
1600 if (!sk) in sk_prot_alloc()
1601 return sk; in sk_prot_alloc()
1603 sk_prot_clear_nulls(sk, prot->obj_size); in sk_prot_alloc()
1605 sk = kmalloc(prot->obj_size, priority); in sk_prot_alloc()
1607 if (sk != NULL) { in sk_prot_alloc()
1608 if (security_sk_alloc(sk, family, priority)) in sk_prot_alloc()
1613 sk_tx_queue_clear(sk); in sk_prot_alloc()
1616 return sk; in sk_prot_alloc()
1619 security_sk_free(sk); in sk_prot_alloc()
1622 kmem_cache_free(slab, sk); in sk_prot_alloc()
1624 kfree(sk); in sk_prot_alloc()
1628 static void sk_prot_free(struct proto *prot, struct sock *sk) in sk_prot_free() argument
1636 cgroup_sk_free(&sk->sk_cgrp_data); in sk_prot_free()
1637 mem_cgroup_sk_free(sk); in sk_prot_free()
1638 security_sk_free(sk); in sk_prot_free()
1640 kmem_cache_free(slab, sk); in sk_prot_free()
1642 kfree(sk); in sk_prot_free()
1657 struct sock *sk; in sk_alloc() local
1659 sk = sk_prot_alloc(prot, priority | __GFP_ZERO, family); in sk_alloc()
1660 if (sk) { in sk_alloc()
1661 sk->sk_family = family; in sk_alloc()
1666 sk->sk_prot = sk->sk_prot_creator = prot; in sk_alloc()
1667 sk->sk_kern_sock = kern; in sk_alloc()
1668 sock_lock_init(sk); in sk_alloc()
1669 sk->sk_net_refcnt = kern ? 0 : 1; in sk_alloc()
1670 if (likely(sk->sk_net_refcnt)) { in sk_alloc()
1675 sock_net_set(sk, net); in sk_alloc()
1676 refcount_set(&sk->sk_wmem_alloc, 1); in sk_alloc()
1678 mem_cgroup_sk_alloc(sk); in sk_alloc()
1679 cgroup_sk_alloc(&sk->sk_cgrp_data); in sk_alloc()
1680 sock_update_classid(&sk->sk_cgrp_data); in sk_alloc()
1681 sock_update_netprioidx(&sk->sk_cgrp_data); in sk_alloc()
1684 return sk; in sk_alloc()
1693 struct sock *sk = container_of(head, struct sock, sk_rcu); in __sk_destruct() local
1696 if (sk->sk_destruct) in __sk_destruct()
1697 sk->sk_destruct(sk); in __sk_destruct()
1699 filter = rcu_dereference_check(sk->sk_filter, in __sk_destruct()
1700 refcount_read(&sk->sk_wmem_alloc) == 0); in __sk_destruct()
1702 sk_filter_uncharge(sk, filter); in __sk_destruct()
1703 RCU_INIT_POINTER(sk->sk_filter, NULL); in __sk_destruct()
1706 sock_disable_timestamp(sk, SK_FLAGS_TIMESTAMP); in __sk_destruct()
1709 bpf_sk_storage_free(sk); in __sk_destruct()
1712 if (atomic_read(&sk->sk_omem_alloc)) in __sk_destruct()
1714 __func__, atomic_read(&sk->sk_omem_alloc)); in __sk_destruct()
1716 if (sk->sk_frag.page) { in __sk_destruct()
1717 put_page(sk->sk_frag.page); in __sk_destruct()
1718 sk->sk_frag.page = NULL; in __sk_destruct()
1721 if (sk->sk_peer_cred) in __sk_destruct()
1722 put_cred(sk->sk_peer_cred); in __sk_destruct()
1723 put_pid(sk->sk_peer_pid); in __sk_destruct()
1724 if (likely(sk->sk_net_refcnt)) in __sk_destruct()
1725 put_net(sock_net(sk)); in __sk_destruct()
1726 sk_prot_free(sk->sk_prot_creator, sk); in __sk_destruct()
1729 void sk_destruct(struct sock *sk) in sk_destruct() argument
1731 bool use_call_rcu = sock_flag(sk, SOCK_RCU_FREE); in sk_destruct()
1733 if (rcu_access_pointer(sk->sk_reuseport_cb)) { in sk_destruct()
1734 reuseport_detach_sock(sk); in sk_destruct()
1739 call_rcu(&sk->sk_rcu, __sk_destruct); in sk_destruct()
1741 __sk_destruct(&sk->sk_rcu); in sk_destruct()
1744 static void __sk_free(struct sock *sk) in __sk_free() argument
1746 if (likely(sk->sk_net_refcnt)) in __sk_free()
1747 sock_inuse_add(sock_net(sk), -1); in __sk_free()
1749 if (unlikely(sk->sk_net_refcnt && sock_diag_has_destroy_listeners(sk))) in __sk_free()
1750 sock_diag_broadcast_destroy(sk); in __sk_free()
1752 sk_destruct(sk); in __sk_free()
1755 void sk_free(struct sock *sk) in sk_free() argument
1762 if (refcount_dec_and_test(&sk->sk_wmem_alloc)) in sk_free()
1763 __sk_free(sk); in sk_free()
1767 static void sk_init_common(struct sock *sk) in sk_init_common() argument
1769 skb_queue_head_init(&sk->sk_receive_queue); in sk_init_common()
1770 skb_queue_head_init(&sk->sk_write_queue); in sk_init_common()
1771 skb_queue_head_init(&sk->sk_error_queue); in sk_init_common()
1773 rwlock_init(&sk->sk_callback_lock); in sk_init_common()
1774 lockdep_set_class_and_name(&sk->sk_receive_queue.lock, in sk_init_common()
1775 af_rlock_keys + sk->sk_family, in sk_init_common()
1776 af_family_rlock_key_strings[sk->sk_family]); in sk_init_common()
1777 lockdep_set_class_and_name(&sk->sk_write_queue.lock, in sk_init_common()
1778 af_wlock_keys + sk->sk_family, in sk_init_common()
1779 af_family_wlock_key_strings[sk->sk_family]); in sk_init_common()
1780 lockdep_set_class_and_name(&sk->sk_error_queue.lock, in sk_init_common()
1781 af_elock_keys + sk->sk_family, in sk_init_common()
1782 af_family_elock_key_strings[sk->sk_family]); in sk_init_common()
1783 lockdep_set_class_and_name(&sk->sk_callback_lock, in sk_init_common()
1784 af_callback_keys + sk->sk_family, in sk_init_common()
1785 af_family_clock_key_strings[sk->sk_family]); in sk_init_common()
1795 struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority) in sk_clone_lock() argument
1800 newsk = sk_prot_alloc(sk->sk_prot, priority, sk->sk_family); in sk_clone_lock()
1804 sock_copy(newsk, sk); in sk_clone_lock()
1806 newsk->sk_prot_creator = sk->sk_prot; in sk_clone_lock()
1831 newsk->sk_userlocks = sk->sk_userlocks & ~SOCK_BINDPORT_LOCK; in sk_clone_lock()
1839 filter = rcu_dereference(sk->sk_filter); in sk_clone_lock()
1849 if (unlikely(!is_charged || xfrm_sk_clone_policy(newsk, sk))) { in sk_clone_lock()
1862 if (bpf_sk_storage_clone(sk, newsk)) { in sk_clone_lock()
1900 if (sock_needs_netstamp(sk) && in sk_clone_lock()
1909 void sk_free_unlock_clone(struct sock *sk) in sk_free_unlock_clone() argument
1913 sk->sk_destruct = NULL; in sk_free_unlock_clone()
1914 bh_unlock_sock(sk); in sk_free_unlock_clone()
1915 sk_free(sk); in sk_free_unlock_clone()
1919 void sk_setup_caps(struct sock *sk, struct dst_entry *dst) in sk_setup_caps() argument
1923 sk_dst_set(sk, dst); in sk_setup_caps()
1924 sk->sk_route_caps = dst->dev->features | sk->sk_route_forced_caps; in sk_setup_caps()
1925 if (sk->sk_route_caps & NETIF_F_GSO) in sk_setup_caps()
1926 sk->sk_route_caps |= NETIF_F_GSO_SOFTWARE; in sk_setup_caps()
1927 sk->sk_route_caps &= ~sk->sk_route_nocaps; in sk_setup_caps()
1928 if (sk_can_gso(sk)) { in sk_setup_caps()
1930 sk->sk_route_caps &= ~NETIF_F_GSO_MASK; in sk_setup_caps()
1932 sk->sk_route_caps |= NETIF_F_SG | NETIF_F_HW_CSUM; in sk_setup_caps()
1933 sk->sk_gso_max_size = dst->dev->gso_max_size; in sk_setup_caps()
1937 sk->sk_gso_max_segs = max_segs; in sk_setup_caps()
1951 struct sock *sk = skb->sk; in sock_wfree() local
1954 if (!sock_flag(sk, SOCK_USE_WRITE_QUEUE)) { in sock_wfree()
1959 WARN_ON(refcount_sub_and_test(len - 1, &sk->sk_wmem_alloc)); in sock_wfree()
1960 sk->sk_write_space(sk); in sock_wfree()
1967 if (refcount_sub_and_test(len, &sk->sk_wmem_alloc)) in sock_wfree()
1968 __sk_free(sk); in sock_wfree()
1977 struct sock *sk = skb->sk; in __sock_wfree() local
1979 if (refcount_sub_and_test(skb->truesize, &sk->sk_wmem_alloc)) in __sock_wfree()
1980 __sk_free(sk); in __sock_wfree()
1983 void skb_set_owner_w(struct sk_buff *skb, struct sock *sk) in skb_set_owner_w() argument
1986 skb->sk = sk; in skb_set_owner_w()
1988 if (unlikely(!sk_fullsock(sk))) { in skb_set_owner_w()
1990 sock_hold(sk); in skb_set_owner_w()
1995 skb_set_hash_from_sk(skb, sk); in skb_set_owner_w()
2001 refcount_add(skb->truesize, &sk->sk_wmem_alloc); in skb_set_owner_w()
2030 struct sock *sk = skb->sk; in skb_orphan_partial() local
2032 if (refcount_inc_not_zero(&sk->sk_refcnt)) { in skb_orphan_partial()
2033 WARN_ON(refcount_sub_and_test(skb->truesize, &sk->sk_wmem_alloc)); in skb_orphan_partial()
2047 struct sock *sk = skb->sk; in sock_rfree() local
2050 atomic_sub(len, &sk->sk_rmem_alloc); in sock_rfree()
2051 sk_mem_uncharge(sk, len); in sock_rfree()
2061 sock_put(skb->sk); in sock_efree()
2065 kuid_t sock_i_uid(struct sock *sk) in sock_i_uid() argument
2069 read_lock_bh(&sk->sk_callback_lock); in sock_i_uid()
2070 uid = sk->sk_socket ? SOCK_INODE(sk->sk_socket)->i_uid : GLOBAL_ROOT_UID; in sock_i_uid()
2071 read_unlock_bh(&sk->sk_callback_lock); in sock_i_uid()
2076 unsigned long sock_i_ino(struct sock *sk) in sock_i_ino() argument
2080 read_lock_bh(&sk->sk_callback_lock); in sock_i_ino()
2081 ino = sk->sk_socket ? SOCK_INODE(sk->sk_socket)->i_ino : 0; in sock_i_ino()
2082 read_unlock_bh(&sk->sk_callback_lock); in sock_i_ino()
2090 struct sk_buff *sock_wmalloc(struct sock *sk, unsigned long size, int force, in sock_wmalloc() argument
2094 refcount_read(&sk->sk_wmem_alloc) < READ_ONCE(sk->sk_sndbuf)) { in sock_wmalloc()
2098 skb_set_owner_w(skb, sk); in sock_wmalloc()
2108 struct sock *sk = skb->sk; in sock_ofree() local
2110 atomic_sub(skb->truesize, &sk->sk_omem_alloc); in sock_ofree()
2113 struct sk_buff *sock_omalloc(struct sock *sk, unsigned long size, in sock_omalloc() argument
2119 if (atomic_read(&sk->sk_omem_alloc) + SKB_TRUESIZE(size) > in sock_omalloc()
2127 atomic_add(skb->truesize, &sk->sk_omem_alloc); in sock_omalloc()
2128 skb->sk = sk; in sock_omalloc()
2136 void *sock_kmalloc(struct sock *sk, int size, gfp_t priority) in sock_kmalloc() argument
2139 atomic_read(&sk->sk_omem_alloc) + size < sysctl_optmem_max) { in sock_kmalloc()
2144 atomic_add(size, &sk->sk_omem_alloc); in sock_kmalloc()
2148 atomic_sub(size, &sk->sk_omem_alloc); in sock_kmalloc()
2158 static inline void __sock_kfree_s(struct sock *sk, void *mem, int size, in __sock_kfree_s() argument
2167 atomic_sub(size, &sk->sk_omem_alloc); in __sock_kfree_s()
2170 void sock_kfree_s(struct sock *sk, void *mem, int size) in sock_kfree_s() argument
2172 __sock_kfree_s(sk, mem, size, false); in sock_kfree_s()
2176 void sock_kzfree_s(struct sock *sk, void *mem, int size) in sock_kzfree_s() argument
2178 __sock_kfree_s(sk, mem, size, true); in sock_kzfree_s()
2185 static long sock_wait_for_wmem(struct sock *sk, long timeo) in sock_wait_for_wmem() argument
2189 sk_clear_bit(SOCKWQ_ASYNC_NOSPACE, sk); in sock_wait_for_wmem()
2195 set_bit(SOCK_NOSPACE, &sk->sk_socket->flags); in sock_wait_for_wmem()
2196 prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); in sock_wait_for_wmem()
2197 if (refcount_read(&sk->sk_wmem_alloc) < READ_ONCE(sk->sk_sndbuf)) in sock_wait_for_wmem()
2199 if (sk->sk_shutdown & SEND_SHUTDOWN) in sock_wait_for_wmem()
2201 if (sk->sk_err) in sock_wait_for_wmem()
2205 finish_wait(sk_sleep(sk), &wait); in sock_wait_for_wmem()
2214 struct sk_buff *sock_alloc_send_pskb(struct sock *sk, unsigned long header_len, in sock_alloc_send_pskb() argument
2222 timeo = sock_sndtimeo(sk, noblock); in sock_alloc_send_pskb()
2224 err = sock_error(sk); in sock_alloc_send_pskb()
2229 if (sk->sk_shutdown & SEND_SHUTDOWN) in sock_alloc_send_pskb()
2232 if (sk_wmem_alloc_get(sk) < READ_ONCE(sk->sk_sndbuf)) in sock_alloc_send_pskb()
2235 sk_set_bit(SOCKWQ_ASYNC_NOSPACE, sk); in sock_alloc_send_pskb()
2236 set_bit(SOCK_NOSPACE, &sk->sk_socket->flags); in sock_alloc_send_pskb()
2242 timeo = sock_wait_for_wmem(sk, timeo); in sock_alloc_send_pskb()
2245 errcode, sk->sk_allocation); in sock_alloc_send_pskb()
2247 skb_set_owner_w(skb, sk); in sock_alloc_send_pskb()
2258 struct sk_buff *sock_alloc_send_skb(struct sock *sk, unsigned long size, in sock_alloc_send_skb() argument
2261 return sock_alloc_send_pskb(sk, size, 0, noblock, errcode, 0); in sock_alloc_send_skb()
2265 int __sock_cmsg_send(struct sock *sk, struct msghdr *msg, struct cmsghdr *cmsg, in __sock_cmsg_send() argument
2272 if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) in __sock_cmsg_send()
2290 if (!sock_flag(sk, SOCK_TXTIME)) in __sock_cmsg_send()
2307 int sock_cmsg_send(struct sock *sk, struct msghdr *msg, in sock_cmsg_send() argument
2318 ret = __sock_cmsg_send(sk, msg, cmsg, sockc); in sock_cmsg_send()
2326 static void sk_enter_memory_pressure(struct sock *sk) in sk_enter_memory_pressure() argument
2328 if (!sk->sk_prot->enter_memory_pressure) in sk_enter_memory_pressure()
2331 sk->sk_prot->enter_memory_pressure(sk); in sk_enter_memory_pressure()
2334 static void sk_leave_memory_pressure(struct sock *sk) in sk_leave_memory_pressure() argument
2336 if (sk->sk_prot->leave_memory_pressure) { in sk_leave_memory_pressure()
2337 sk->sk_prot->leave_memory_pressure(sk); in sk_leave_memory_pressure()
2339 unsigned long *memory_pressure = sk->sk_prot->memory_pressure; in sk_leave_memory_pressure()
2394 bool sk_page_frag_refill(struct sock *sk, struct page_frag *pfrag) in sk_page_frag_refill() argument
2396 if (likely(skb_page_frag_refill(32U, pfrag, sk->sk_allocation))) in sk_page_frag_refill()
2399 sk_enter_memory_pressure(sk); in sk_page_frag_refill()
2400 sk_stream_moderate_sndbuf(sk); in sk_page_frag_refill()
2405 static void __lock_sock(struct sock *sk) in __lock_sock() argument
2406 __releases(&sk->sk_lock.slock) in __lock_sock()
2407 __acquires(&sk->sk_lock.slock) in __lock_sock()
2412 prepare_to_wait_exclusive(&sk->sk_lock.wq, &wait, in __lock_sock()
2414 spin_unlock_bh(&sk->sk_lock.slock); in __lock_sock()
2416 spin_lock_bh(&sk->sk_lock.slock); in __lock_sock()
2417 if (!sock_owned_by_user(sk)) in __lock_sock()
2420 finish_wait(&sk->sk_lock.wq, &wait); in __lock_sock()
2423 void __release_sock(struct sock *sk) in __release_sock() argument
2424 __releases(&sk->sk_lock.slock) in __release_sock()
2425 __acquires(&sk->sk_lock.slock) in __release_sock()
2429 while ((skb = sk->sk_backlog.head) != NULL) { in __release_sock()
2430 sk->sk_backlog.head = sk->sk_backlog.tail = NULL; in __release_sock()
2432 spin_unlock_bh(&sk->sk_lock.slock); in __release_sock()
2439 sk_backlog_rcv(sk, skb); in __release_sock()
2446 spin_lock_bh(&sk->sk_lock.slock); in __release_sock()
2453 sk->sk_backlog.len = 0; in __release_sock()
2456 void __sk_flush_backlog(struct sock *sk) in __sk_flush_backlog() argument
2458 spin_lock_bh(&sk->sk_lock.slock); in __sk_flush_backlog()
2459 __release_sock(sk); in __sk_flush_backlog()
2460 spin_unlock_bh(&sk->sk_lock.slock); in __sk_flush_backlog()
2474 int sk_wait_data(struct sock *sk, long *timeo, const struct sk_buff *skb) in sk_wait_data() argument
2479 add_wait_queue(sk_sleep(sk), &wait); in sk_wait_data()
2480 sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk); in sk_wait_data()
2481 rc = sk_wait_event(sk, timeo, skb_peek_tail(&sk->sk_receive_queue) != skb, &wait); in sk_wait_data()
2482 sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk); in sk_wait_data()
2483 remove_wait_queue(sk_sleep(sk), &wait); in sk_wait_data()
2497 int __sk_mem_raise_allocated(struct sock *sk, int size, int amt, int kind) in __sk_mem_raise_allocated() argument
2499 struct proto *prot = sk->sk_prot; in __sk_mem_raise_allocated()
2500 long allocated = sk_memory_allocated_add(sk, amt); in __sk_mem_raise_allocated()
2503 if (mem_cgroup_sockets_enabled && sk->sk_memcg && in __sk_mem_raise_allocated()
2504 !(charged = mem_cgroup_charge_skmem(sk->sk_memcg, amt))) in __sk_mem_raise_allocated()
2508 if (allocated <= sk_prot_mem_limits(sk, 0)) { in __sk_mem_raise_allocated()
2509 sk_leave_memory_pressure(sk); in __sk_mem_raise_allocated()
2514 if (allocated > sk_prot_mem_limits(sk, 1)) in __sk_mem_raise_allocated()
2515 sk_enter_memory_pressure(sk); in __sk_mem_raise_allocated()
2518 if (allocated > sk_prot_mem_limits(sk, 2)) in __sk_mem_raise_allocated()
2523 if (atomic_read(&sk->sk_rmem_alloc) < sk_get_rmem0(sk, prot)) in __sk_mem_raise_allocated()
2527 int wmem0 = sk_get_wmem0(sk, prot); in __sk_mem_raise_allocated()
2529 if (sk->sk_type == SOCK_STREAM) { in __sk_mem_raise_allocated()
2530 if (sk->sk_wmem_queued < wmem0) in __sk_mem_raise_allocated()
2532 } else if (refcount_read(&sk->sk_wmem_alloc) < wmem0) { in __sk_mem_raise_allocated()
2537 if (sk_has_memory_pressure(sk)) { in __sk_mem_raise_allocated()
2540 if (!sk_under_memory_pressure(sk)) in __sk_mem_raise_allocated()
2542 alloc = sk_sockets_allocated_read_positive(sk); in __sk_mem_raise_allocated()
2543 if (sk_prot_mem_limits(sk, 2) > alloc * in __sk_mem_raise_allocated()
2544 sk_mem_pages(sk->sk_wmem_queued + in __sk_mem_raise_allocated()
2545 atomic_read(&sk->sk_rmem_alloc) + in __sk_mem_raise_allocated()
2546 sk->sk_forward_alloc)) in __sk_mem_raise_allocated()
2552 if (kind == SK_MEM_SEND && sk->sk_type == SOCK_STREAM) { in __sk_mem_raise_allocated()
2553 sk_stream_moderate_sndbuf(sk); in __sk_mem_raise_allocated()
2558 if (sk->sk_wmem_queued + size >= sk->sk_sndbuf) in __sk_mem_raise_allocated()
2563 trace_sock_exceed_buf_limit(sk, prot, allocated, kind); in __sk_mem_raise_allocated()
2565 sk_memory_allocated_sub(sk, amt); in __sk_mem_raise_allocated()
2567 if (mem_cgroup_sockets_enabled && sk->sk_memcg) in __sk_mem_raise_allocated()
2568 mem_cgroup_uncharge_skmem(sk->sk_memcg, amt); in __sk_mem_raise_allocated()
2584 int __sk_mem_schedule(struct sock *sk, int size, int kind) in __sk_mem_schedule() argument
2588 sk->sk_forward_alloc += amt << SK_MEM_QUANTUM_SHIFT; in __sk_mem_schedule()
2589 ret = __sk_mem_raise_allocated(sk, size, amt, kind); in __sk_mem_schedule()
2591 sk->sk_forward_alloc -= amt << SK_MEM_QUANTUM_SHIFT; in __sk_mem_schedule()
2603 void __sk_mem_reduce_allocated(struct sock *sk, int amount) in __sk_mem_reduce_allocated() argument
2605 sk_memory_allocated_sub(sk, amount); in __sk_mem_reduce_allocated()
2607 if (mem_cgroup_sockets_enabled && sk->sk_memcg) in __sk_mem_reduce_allocated()
2608 mem_cgroup_uncharge_skmem(sk->sk_memcg, amount); in __sk_mem_reduce_allocated()
2610 if (sk_under_memory_pressure(sk) && in __sk_mem_reduce_allocated()
2611 (sk_memory_allocated(sk) < sk_prot_mem_limits(sk, 0))) in __sk_mem_reduce_allocated()
2612 sk_leave_memory_pressure(sk); in __sk_mem_reduce_allocated()
2621 void __sk_mem_reclaim(struct sock *sk, int amount) in __sk_mem_reclaim() argument
2624 sk->sk_forward_alloc -= amount << SK_MEM_QUANTUM_SHIFT; in __sk_mem_reclaim()
2625 __sk_mem_reduce_allocated(sk, amount); in __sk_mem_reclaim()
2629 int sk_set_peek_off(struct sock *sk, int val) in sk_set_peek_off() argument
2631 sk->sk_peek_off = val; in sk_set_peek_off()
2714 int sock_no_sendmsg_locked(struct sock *sk, struct msghdr *m, size_t len) in sock_no_sendmsg_locked() argument
2748 ssize_t sock_no_sendpage_locked(struct sock *sk, struct page *page, in sock_no_sendpage_locked() argument
2758 res = kernel_sendmsg_locked(sk, &msg, &iov, 1, size); in sock_no_sendpage_locked()
2768 static void sock_def_wakeup(struct sock *sk) in sock_def_wakeup() argument
2773 wq = rcu_dereference(sk->sk_wq); in sock_def_wakeup()
2779 static void sock_def_error_report(struct sock *sk) in sock_def_error_report() argument
2784 wq = rcu_dereference(sk->sk_wq); in sock_def_error_report()
2787 sk_wake_async(sk, SOCK_WAKE_IO, POLL_ERR); in sock_def_error_report()
2791 static void sock_def_readable(struct sock *sk) in sock_def_readable() argument
2796 wq = rcu_dereference(sk->sk_wq); in sock_def_readable()
2800 sk_wake_async(sk, SOCK_WAKE_WAITD, POLL_IN); in sock_def_readable()
2804 static void sock_def_write_space(struct sock *sk) in sock_def_write_space() argument
2813 if ((refcount_read(&sk->sk_wmem_alloc) << 1) <= READ_ONCE(sk->sk_sndbuf)) { in sock_def_write_space()
2814 wq = rcu_dereference(sk->sk_wq); in sock_def_write_space()
2820 if (sock_writeable(sk)) in sock_def_write_space()
2821 sk_wake_async(sk, SOCK_WAKE_SPACE, POLL_OUT); in sock_def_write_space()
2827 static void sock_def_destruct(struct sock *sk) in sock_def_destruct() argument
2831 void sk_send_sigurg(struct sock *sk) in sk_send_sigurg() argument
2833 if (sk->sk_socket && sk->sk_socket->file) in sk_send_sigurg()
2834 if (send_sigurg(&sk->sk_socket->file->f_owner)) in sk_send_sigurg()
2835 sk_wake_async(sk, SOCK_WAKE_URG, POLL_PRI); in sk_send_sigurg()
2839 void sk_reset_timer(struct sock *sk, struct timer_list* timer, in sk_reset_timer() argument
2843 sock_hold(sk); in sk_reset_timer()
2847 void sk_stop_timer(struct sock *sk, struct timer_list* timer) in sk_stop_timer() argument
2850 __sock_put(sk); in sk_stop_timer()
2854 void sock_init_data(struct socket *sock, struct sock *sk) in sock_init_data() argument
2856 sk_init_common(sk); in sock_init_data()
2857 sk->sk_send_head = NULL; in sock_init_data()
2859 timer_setup(&sk->sk_timer, NULL, 0); in sock_init_data()
2861 sk->sk_allocation = GFP_KERNEL; in sock_init_data()
2862 sk->sk_rcvbuf = sysctl_rmem_default; in sock_init_data()
2863 sk->sk_sndbuf = sysctl_wmem_default; in sock_init_data()
2864 sk->sk_state = TCP_CLOSE; in sock_init_data()
2865 sk_set_socket(sk, sock); in sock_init_data()
2867 sock_set_flag(sk, SOCK_ZAPPED); in sock_init_data()
2870 sk->sk_type = sock->type; in sock_init_data()
2871 RCU_INIT_POINTER(sk->sk_wq, &sock->wq); in sock_init_data()
2872 sock->sk = sk; in sock_init_data()
2873 sk->sk_uid = SOCK_INODE(sock)->i_uid; in sock_init_data()
2875 RCU_INIT_POINTER(sk->sk_wq, NULL); in sock_init_data()
2876 sk->sk_uid = make_kuid(sock_net(sk)->user_ns, 0); in sock_init_data()
2879 rwlock_init(&sk->sk_callback_lock); in sock_init_data()
2880 if (sk->sk_kern_sock) in sock_init_data()
2882 &sk->sk_callback_lock, in sock_init_data()
2883 af_kern_callback_keys + sk->sk_family, in sock_init_data()
2884 af_family_kern_clock_key_strings[sk->sk_family]); in sock_init_data()
2887 &sk->sk_callback_lock, in sock_init_data()
2888 af_callback_keys + sk->sk_family, in sock_init_data()
2889 af_family_clock_key_strings[sk->sk_family]); in sock_init_data()
2891 sk->sk_state_change = sock_def_wakeup; in sock_init_data()
2892 sk->sk_data_ready = sock_def_readable; in sock_init_data()
2893 sk->sk_write_space = sock_def_write_space; in sock_init_data()
2894 sk->sk_error_report = sock_def_error_report; in sock_init_data()
2895 sk->sk_destruct = sock_def_destruct; in sock_init_data()
2897 sk->sk_frag.page = NULL; in sock_init_data()
2898 sk->sk_frag.offset = 0; in sock_init_data()
2899 sk->sk_peek_off = -1; in sock_init_data()
2901 sk->sk_peer_pid = NULL; in sock_init_data()
2902 sk->sk_peer_cred = NULL; in sock_init_data()
2903 sk->sk_write_pending = 0; in sock_init_data()
2904 sk->sk_rcvlowat = 1; in sock_init_data()
2905 sk->sk_rcvtimeo = MAX_SCHEDULE_TIMEOUT; in sock_init_data()
2906 sk->sk_sndtimeo = MAX_SCHEDULE_TIMEOUT; in sock_init_data()
2908 sk->sk_stamp = SK_DEFAULT_STAMP; in sock_init_data()
2910 seqlock_init(&sk->sk_stamp_seq); in sock_init_data()
2912 atomic_set(&sk->sk_zckey, 0); in sock_init_data()
2915 sk->sk_napi_id = 0; in sock_init_data()
2916 sk->sk_ll_usec = sysctl_net_busy_read; in sock_init_data()
2919 sk->sk_max_pacing_rate = ~0UL; in sock_init_data()
2920 sk->sk_pacing_rate = ~0UL; in sock_init_data()
2921 WRITE_ONCE(sk->sk_pacing_shift, 10); in sock_init_data()
2922 sk->sk_incoming_cpu = -1; in sock_init_data()
2924 sk_rx_queue_clear(sk); in sock_init_data()
2930 refcount_set(&sk->sk_refcnt, 1); in sock_init_data()
2931 atomic_set(&sk->sk_drops, 0); in sock_init_data()
2935 void lock_sock_nested(struct sock *sk, int subclass) in lock_sock_nested() argument
2938 spin_lock_bh(&sk->sk_lock.slock); in lock_sock_nested()
2939 if (sk->sk_lock.owned) in lock_sock_nested()
2940 __lock_sock(sk); in lock_sock_nested()
2941 sk->sk_lock.owned = 1; in lock_sock_nested()
2942 spin_unlock(&sk->sk_lock.slock); in lock_sock_nested()
2946 mutex_acquire(&sk->sk_lock.dep_map, subclass, 0, _RET_IP_); in lock_sock_nested()
2951 void release_sock(struct sock *sk) in release_sock() argument
2953 spin_lock_bh(&sk->sk_lock.slock); in release_sock()
2954 if (sk->sk_backlog.tail) in release_sock()
2955 __release_sock(sk); in release_sock()
2960 if (sk->sk_prot->release_cb) in release_sock()
2961 sk->sk_prot->release_cb(sk); in release_sock()
2963 sock_release_ownership(sk); in release_sock()
2964 if (waitqueue_active(&sk->sk_lock.wq)) in release_sock()
2965 wake_up(&sk->sk_lock.wq); in release_sock()
2966 spin_unlock_bh(&sk->sk_lock.slock); in release_sock()
2983 bool lock_sock_fast(struct sock *sk) in lock_sock_fast() argument
2986 spin_lock_bh(&sk->sk_lock.slock); in lock_sock_fast()
2988 if (!sk->sk_lock.owned) in lock_sock_fast()
2994 __lock_sock(sk); in lock_sock_fast()
2995 sk->sk_lock.owned = 1; in lock_sock_fast()
2996 spin_unlock(&sk->sk_lock.slock); in lock_sock_fast()
3000 mutex_acquire(&sk->sk_lock.dep_map, 0, 0, _RET_IP_); in lock_sock_fast()
3009 struct sock *sk = sock->sk; in sock_gettstamp() local
3012 sock_enable_timestamp(sk, SOCK_TIMESTAMP); in sock_gettstamp()
3013 ts = ktime_to_timespec64(sock_read_timestamp(sk)); in sock_gettstamp()
3018 sock_write_timestamp(sk, kt);; in sock_gettstamp()
3045 void sock_enable_timestamp(struct sock *sk, int flag) in sock_enable_timestamp() argument
3047 if (!sock_flag(sk, flag)) { in sock_enable_timestamp()
3048 unsigned long previous_flags = sk->sk_flags; in sock_enable_timestamp()
3050 sock_set_flag(sk, flag); in sock_enable_timestamp()
3056 if (sock_needs_netstamp(sk) && in sock_enable_timestamp()
3062 int sock_recv_errqueue(struct sock *sk, struct msghdr *msg, int len, in sock_recv_errqueue() argument
3070 skb = sock_dequeue_err_skb(sk); in sock_recv_errqueue()
3083 sock_recv_timestamp(msg, sk, skb); in sock_recv_errqueue()
3108 struct sock *sk = sock->sk; in sock_common_getsockopt() local
3110 return sk->sk_prot->getsockopt(sk, level, optname, optval, optlen); in sock_common_getsockopt()
3118 struct sock *sk = sock->sk; in compat_sock_common_getsockopt() local
3120 if (sk->sk_prot->compat_getsockopt != NULL) in compat_sock_common_getsockopt()
3121 return sk->sk_prot->compat_getsockopt(sk, level, optname, in compat_sock_common_getsockopt()
3123 return sk->sk_prot->getsockopt(sk, level, optname, optval, optlen); in compat_sock_common_getsockopt()
3131 struct sock *sk = sock->sk; in sock_common_recvmsg() local
3135 err = sk->sk_prot->recvmsg(sk, msg, size, flags & MSG_DONTWAIT, in sock_common_recvmsg()
3149 struct sock *sk = sock->sk; in sock_common_setsockopt() local
3151 return sk->sk_prot->setsockopt(sk, level, optname, optval, optlen); in sock_common_setsockopt()
3159 struct sock *sk = sock->sk; in compat_sock_common_setsockopt() local
3161 if (sk->sk_prot->compat_setsockopt != NULL) in compat_sock_common_setsockopt()
3162 return sk->sk_prot->compat_setsockopt(sk, level, optname, in compat_sock_common_setsockopt()
3164 return sk->sk_prot->setsockopt(sk, level, optname, optval, optlen); in compat_sock_common_setsockopt()
3169 void sk_common_release(struct sock *sk) in sk_common_release() argument
3171 if (sk->sk_prot->destroy) in sk_common_release()
3172 sk->sk_prot->destroy(sk); in sk_common_release()
3182 sk->sk_prot->unhash(sk); in sk_common_release()
3196 sock_orphan(sk); in sk_common_release()
3198 xfrm_sk_free_policy(sk); in sk_common_release()
3200 sk_refcnt_debug_release(sk); in sk_common_release()
3202 sock_put(sk); in sk_common_release()
3206 void sk_get_meminfo(const struct sock *sk, u32 *mem) in sk_get_meminfo() argument
3210 mem[SK_MEMINFO_RMEM_ALLOC] = sk_rmem_alloc_get(sk); in sk_get_meminfo()
3211 mem[SK_MEMINFO_RCVBUF] = READ_ONCE(sk->sk_rcvbuf); in sk_get_meminfo()
3212 mem[SK_MEMINFO_WMEM_ALLOC] = sk_wmem_alloc_get(sk); in sk_get_meminfo()
3213 mem[SK_MEMINFO_SNDBUF] = READ_ONCE(sk->sk_sndbuf); in sk_get_meminfo()
3214 mem[SK_MEMINFO_FWD_ALLOC] = sk->sk_forward_alloc; in sk_get_meminfo()
3215 mem[SK_MEMINFO_WMEM_QUEUED] = READ_ONCE(sk->sk_wmem_queued); in sk_get_meminfo()
3216 mem[SK_MEMINFO_OPTMEM] = atomic_read(&sk->sk_omem_alloc); in sk_get_meminfo()
3217 mem[SK_MEMINFO_BACKLOG] = READ_ONCE(sk->sk_backlog.len); in sk_get_meminfo()
3218 mem[SK_MEMINFO_DROPS] = atomic_read(&sk->sk_drops); in sk_get_meminfo()
3601 struct sock *sk = p; in sk_busy_loop_end() local
3603 return !skb_queue_empty_lockless(&sk->sk_receive_queue) || in sk_busy_loop_end()
3604 sk_busy_loop_timeout(sk, start_time); in sk_busy_loop_end()