Lines Matching +full:imp +full:- +full:res +full:- +full:offset +full:- +full:value
4 * Copyright (c) 2001-2007, 2012-2017, Ericsson AB
5 * Copyright (c) 2004-2008, 2010-2013, Wind River Systems
73 * struct tipc_sock - TIPC socket structure
74 * @sk: socket - interacts with 'port' and with user via the socket API
77 * @published: non-zero if port has one or more associated names
161 return msg_prevnode(&tsk->phdr); in tsk_own_node()
166 return msg_destnode(&tsk->phdr); in tsk_peer_node()
171 return msg_destport(&tsk->phdr); in tsk_peer_port()
176 return msg_src_droppable(&tsk->phdr) != 0; in tsk_unreliable()
181 msg_set_src_droppable(&tsk->phdr, unreliable ? 1 : 0); in tsk_set_unreliable()
186 return msg_dest_droppable(&tsk->phdr) != 0; in tsk_unreturnable()
191 msg_set_dest_droppable(&tsk->phdr, unreturnable ? 1 : 0); in tsk_set_unreturnable()
196 return msg_importance(&tsk->phdr); in tsk_importance()
204 int tsk_set_importance(struct sock *sk, int imp) in tsk_set_importance() argument
206 if (imp > TIPC_CRITICAL_IMPORTANCE) in tsk_set_importance()
207 return -EINVAL; in tsk_set_importance()
208 msg_set_importance(&tipc_sk(sk)->phdr, (u32)imp); in tsk_set_importance()
214 return tsk->snt_unacked > tsk->snd_win; in tsk_conn_cong()
232 * - If block based flow control is not supported by peer we
237 if (likely(tsk->peer_caps & TIPC_BLOCK_FLOWCTL)) in tsk_inc()
242 /* tsk_set_nagle - enable/disable nagle property by manipulating maxnagle
246 struct sock *sk = &tsk->sk; in tsk_set_nagle()
248 tsk->maxnagle = 0; in tsk_set_nagle()
249 if (sk->sk_type != SOCK_STREAM) in tsk_set_nagle()
251 if (tsk->nodelay) in tsk_set_nagle()
253 if (!(tsk->peer_caps & TIPC_NAGLE)) in tsk_set_nagle()
256 if (tsk->max_pkt == MAX_MSG_SIZE) in tsk_set_nagle()
257 tsk->maxnagle = 1500; in tsk_set_nagle()
259 tsk->maxnagle = tsk->max_pkt; in tsk_set_nagle()
263 * tsk_advance_rx_queue - discard first buffer in socket receive queue
270 kfree_skb(__skb_dequeue(&sk->sk_receive_queue)); in tsk_advance_rx_queue()
291 * tsk_rej_rx_queue - reject all buffers in socket receive queue
299 while ((skb = __skb_dequeue(&sk->sk_receive_queue))) in tsk_rej_rx_queue()
305 return sk->sk_state == TIPC_ESTABLISHED; in tipc_sk_connected()
308 /* tipc_sk_type_connectionless - check if the socket is datagram socket
315 return sk->sk_type == SOCK_RDM || sk->sk_type == SOCK_DGRAM; in tipc_sk_type_connectionless()
318 /* tsk_peer_msg - verify if message was sent by connected port's peer
325 struct sock *sk = &tsk->sk; in tsk_peer_msg()
351 /* tipc_set_sk_state - set the sk_state of the socket
360 int oldsk_state = sk->sk_state; in tipc_set_sk_state()
361 int res = -EINVAL; in tipc_set_sk_state() local
365 res = 0; in tipc_set_sk_state()
370 res = 0; in tipc_set_sk_state()
375 res = 0; in tipc_set_sk_state()
380 res = 0; in tipc_set_sk_state()
384 if (!res) in tipc_set_sk_state()
385 sk->sk_state = state; in tipc_set_sk_state()
387 return res; in tipc_set_sk_state()
392 struct sock *sk = sock->sk; in tipc_sk_sock_err()
394 int typ = sock->type; in tipc_sk_sock_err()
399 if (sk->sk_state == TIPC_DISCONNECTING) in tipc_sk_sock_err()
400 return -EPIPE; in tipc_sk_sock_err()
402 return -ENOTCONN; in tipc_sk_sock_err()
405 return -EAGAIN; in tipc_sk_sock_err()
421 sk_ = (sock_)->sk; \
436 * tipc_sk_create - create a TIPC socket
438 * @sock: pre-allocated socket structure
457 return -EPROTONOSUPPORT; in tipc_sk_create()
459 switch (sock->type) { in tipc_sk_create()
471 return -EPROTOTYPE; in tipc_sk_create()
477 return -ENOMEM; in tipc_sk_create()
480 tsk->max_pkt = MAX_PKT_DEFAULT; in tipc_sk_create()
481 tsk->maxnagle = 0; in tipc_sk_create()
482 tsk->nagle_start = NAGLE_START_INIT; in tipc_sk_create()
483 INIT_LIST_HEAD(&tsk->publications); in tipc_sk_create()
484 INIT_LIST_HEAD(&tsk->cong_links); in tipc_sk_create()
485 msg = &tsk->phdr; in tipc_sk_create()
488 sock->ops = ops; in tipc_sk_create()
493 return -EINVAL; in tipc_sk_create()
502 msg_set_origport(msg, tsk->portid); in tipc_sk_create()
503 timer_setup(&sk->sk_timer, tipc_sk_timeout, 0); in tipc_sk_create()
504 sk->sk_shutdown = 0; in tipc_sk_create()
505 sk->sk_backlog_rcv = tipc_sk_backlog_rcv; in tipc_sk_create()
506 sk->sk_rcvbuf = sysctl_tipc_rmem[1]; in tipc_sk_create()
507 sk->sk_data_ready = tipc_data_ready; in tipc_sk_create()
508 sk->sk_write_space = tipc_write_space; in tipc_sk_create()
509 sk->sk_destruct = tipc_sock_destruct; in tipc_sk_create()
510 tsk->conn_timeout = CONN_TIMEOUT_DEFAULT; in tipc_sk_create()
511 tsk->group_is_open = true; in tipc_sk_create()
512 atomic_set(&tsk->dupl_rcvcnt, 0); in tipc_sk_create()
515 tsk->snd_win = tsk_adv_blocks(RCVBUF_MIN); in tipc_sk_create()
516 tsk->rcv_win = tsk->snd_win; in tipc_sk_create()
520 if (sock->type == SOCK_DGRAM) in tipc_sk_create()
523 __skb_queue_head_init(&tsk->mc_method.deferredq); in tipc_sk_create()
532 sock_put(&tsk->sk); in tipc_sk_callback()
538 struct sock *sk = sock->sk; in __tipc_shutdown()
545 /* Avoid that hi-prio shutdown msgs bypass msgs in link wakeup queue */ in __tipc_shutdown()
546 tipc_wait_for_cond(sock, &timeout, (!tsk->cong_link_cnt && in __tipc_shutdown()
552 __skb_queue_purge(&sk->sk_write_queue); in __tipc_shutdown()
555 skb = skb_peek(&sk->sk_receive_queue); in __tipc_shutdown()
556 if (skb && TIPC_SKB_CB(skb)->bytes_read) { in __tipc_shutdown()
557 __skb_unlink(skb, &sk->sk_receive_queue); in __tipc_shutdown()
567 switch (sk->sk_state) { in __tipc_shutdown()
571 tipc_node_remove_conn(net, dnode, tsk->portid); in __tipc_shutdown()
572 /* Send a FIN+/- to its peer */ in __tipc_shutdown()
573 skb = __skb_dequeue(&sk->sk_receive_queue); in __tipc_shutdown()
575 __skb_queue_purge(&sk->sk_receive_queue); in __tipc_shutdown()
582 tsk->portid, error); in __tipc_shutdown()
584 tipc_node_xmit_skb(net, skb, dnode, tsk->portid); in __tipc_shutdown()
591 __skb_queue_purge(&sk->sk_receive_queue); in __tipc_shutdown()
597 * tipc_release - destroy a TIPC socket
604 * is partially-read, it is discarded and the next one is rejected instead.)
614 struct sock *sk = sock->sk; in tipc_release()
619 * releases a pre-allocated child socket that was never used) in tipc_release()
629 sk->sk_shutdown = SHUTDOWN_MASK; in tipc_release()
632 __skb_queue_purge(&tsk->mc_method.deferredq); in tipc_release()
633 sk_stop_timer(sk, &sk->sk_timer); in tipc_release()
639 tipc_dest_list_purge(&tsk->cong_links); in tipc_release()
640 tsk->cong_link_cnt = 0; in tipc_release()
641 call_rcu(&tsk->rcu, tipc_sk_callback); in tipc_release()
642 sock->sk = NULL; in tipc_release()
648 * tipc_bind - associate or disassocate TIPC name(s) with a socket
653 * Name and name sequence binding is indicated using a positive scope value;
654 * a negative scope value unbinds the specified name. Specifying no name
660 * access any non-constant socket information.
665 struct sock *sk = sock->sk; in tipc_bind()
668 int res = -EINVAL; in tipc_bind() local
672 res = tipc_sk_withdraw(tsk, 0, NULL); in tipc_bind()
675 if (tsk->group) { in tipc_bind()
676 res = -EACCES; in tipc_bind()
680 res = -EINVAL; in tipc_bind()
683 if (addr->family != AF_TIPC) { in tipc_bind()
684 res = -EAFNOSUPPORT; in tipc_bind()
688 if (addr->addrtype == TIPC_ADDR_NAME) in tipc_bind()
689 addr->addr.nameseq.upper = addr->addr.nameseq.lower; in tipc_bind()
690 else if (addr->addrtype != TIPC_ADDR_NAMESEQ) { in tipc_bind()
691 res = -EAFNOSUPPORT; in tipc_bind()
695 if ((addr->addr.nameseq.type < TIPC_RESERVED_TYPES) && in tipc_bind()
696 (addr->addr.nameseq.type != TIPC_TOP_SRV) && in tipc_bind()
697 (addr->addr.nameseq.type != TIPC_CFG_SRV)) { in tipc_bind()
698 res = -EACCES; in tipc_bind()
702 res = (addr->scope >= 0) ? in tipc_bind()
703 tipc_sk_publish(tsk, addr->scope, &addr->addr.nameseq) : in tipc_bind()
704 tipc_sk_withdraw(tsk, -addr->scope, &addr->addr.nameseq); in tipc_bind()
707 return res; in tipc_bind()
711 * tipc_getname - get port ID of socket or peer socket
726 struct sock *sk = sock->sk; in tipc_getname()
732 ((peer != 2) || (sk->sk_state != TIPC_DISCONNECTING))) in tipc_getname()
733 return -ENOTCONN; in tipc_getname()
734 addr->addr.id.ref = tsk_peer_port(tsk); in tipc_getname()
735 addr->addr.id.node = tsk_peer_node(tsk); in tipc_getname()
737 addr->addr.id.ref = tsk->portid; in tipc_getname()
738 addr->addr.id.node = tipc_own_addr(sock_net(sk)); in tipc_getname()
741 addr->addrtype = TIPC_ADDR_ID; in tipc_getname()
742 addr->family = AF_TIPC; in tipc_getname()
743 addr->scope = 0; in tipc_getname()
744 addr->addr.name.domain = 0; in tipc_getname()
750 * tipc_poll - read and possibly block on pollmask
755 * Returns pollmask value
759 * since the pollmask info is potentially out-of-date the moment this routine
770 struct sock *sk = sock->sk; in tipc_poll()
777 if (sk->sk_shutdown & RCV_SHUTDOWN) in tipc_poll()
779 if (sk->sk_shutdown == SHUTDOWN_MASK) in tipc_poll()
782 switch (sk->sk_state) { in tipc_poll()
784 if (!tsk->cong_link_cnt && !tsk_conn_cong(tsk)) in tipc_poll()
789 if (!skb_queue_empty_lockless(&sk->sk_receive_queue)) in tipc_poll()
793 if (tsk->group_is_open && !tsk->cong_link_cnt) in tipc_poll()
797 if (skb_queue_empty_lockless(&sk->sk_receive_queue)) in tipc_poll()
809 * tipc_sendmcast - send multicast message
822 struct sock *sk = sock->sk; in tipc_sendmcast()
824 struct tipc_msg *hdr = &tsk->phdr; in tipc_sendmcast()
827 struct tipc_mc_method *method = &tsk->mc_method; in tipc_sendmcast()
832 if (tsk->group) in tipc_sendmcast()
833 return -EACCES; in tipc_sendmcast()
836 rc = tipc_wait_for_cond(sock, &timeout, !tsk->cong_link_cnt); in tipc_sendmcast()
842 tipc_nametbl_lookup_dst_nodes(net, seq->type, seq->lower, in tipc_sendmcast()
843 seq->upper, &dsts); in tipc_sendmcast()
845 return -EHOSTUNREACH; in tipc_sendmcast()
853 msg_set_nametype(hdr, seq->type); in tipc_sendmcast()
854 msg_set_namelower(hdr, seq->lower); in tipc_sendmcast()
855 msg_set_nameupper(hdr, seq->upper); in tipc_sendmcast()
866 &tsk->cong_link_cnt); in tipc_sendmcast()
875 * tipc_send_group_msg - send a message to a member in the group
887 u16 bc_snd_nxt = tipc_group_bc_snd_nxt(tsk->group); in tipc_send_group_msg()
888 struct tipc_mc_method *method = &tsk->mc_method; in tipc_send_group_msg()
890 struct tipc_msg *hdr = &tsk->phdr; in tipc_send_group_msg()
903 mtu = tipc_node_get_mtu(net, dnode, tsk->portid, false); in tipc_send_group_msg()
909 rc = tipc_node_xmit(net, &pkts, dnode, tsk->portid); in tipc_send_group_msg()
910 if (unlikely(rc == -ELINKCONG)) { in tipc_send_group_msg()
911 tipc_dest_push(&tsk->cong_links, dnode, 0); in tipc_send_group_msg()
912 tsk->cong_link_cnt++; in tipc_send_group_msg()
919 method->rcast = true; in tipc_send_group_msg()
920 method->mandatory = true; in tipc_send_group_msg()
925 * tipc_send_group_unicast - send message to a member in the group
937 struct sock *sk = sock->sk; in tipc_send_group_unicast()
938 DECLARE_SOCKADDR(struct sockaddr_tipc *, dest, m->msg_name); in tipc_send_group_unicast()
946 node = dest->addr.id.node; in tipc_send_group_unicast()
947 port = dest->addr.id.ref; in tipc_send_group_unicast()
949 return -EHOSTUNREACH; in tipc_send_group_unicast()
953 !tipc_dest_find(&tsk->cong_links, node, 0) && in tipc_send_group_unicast()
954 tsk->group && in tipc_send_group_unicast()
955 !tipc_group_cong(tsk->group, node, port, blks, in tipc_send_group_unicast()
961 return -EHOSTUNREACH; in tipc_send_group_unicast()
969 * tipc_send_group_anycast - send message to any member with given identity
981 DECLARE_SOCKADDR(struct sockaddr_tipc *, dest, m->msg_name); in tipc_send_group_anycast()
982 struct sock *sk = sock->sk; in tipc_send_group_anycast()
984 struct list_head *cong_links = &tsk->cong_links; in tipc_send_group_anycast()
986 struct tipc_msg *hdr = &tsk->phdr; in tipc_send_group_anycast()
1000 inst = dest->addr.name.name.instance; in tipc_send_group_anycast()
1004 exclude = tipc_group_exclude(tsk->group); in tipc_send_group_anycast()
1008 /* Look for a non-congested destination member, if any */ in tipc_send_group_anycast()
1012 return -EHOSTUNREACH; in tipc_send_group_anycast()
1014 cong = tipc_group_cong(tsk->group, node, port, blks, in tipc_send_group_anycast()
1034 tsk->group && in tipc_send_group_anycast()
1035 !tipc_group_cong(tsk->group, node, port, in tipc_send_group_anycast()
1046 return -EHOSTUNREACH; in tipc_send_group_anycast()
1054 * tipc_send_group_bcast - send message to all members in communication group
1066 DECLARE_SOCKADDR(struct sockaddr_tipc *, dest, m->msg_name); in tipc_send_group_bcast()
1067 struct sock *sk = sock->sk; in tipc_send_group_bcast()
1071 struct tipc_mc_method *method = &tsk->mc_method; in tipc_send_group_bcast()
1072 bool ack = method->mandatory && method->rcast; in tipc_send_group_bcast()
1074 struct tipc_msg *hdr = &tsk->phdr; in tipc_send_group_bcast()
1077 int rc = -EHOSTUNREACH; in tipc_send_group_bcast()
1081 !tsk->cong_link_cnt && tsk->group && in tipc_send_group_bcast()
1082 !tipc_group_bc_cong(tsk->group, blks)); in tipc_send_group_bcast()
1086 dsts = tipc_group_dests(tsk->group); in tipc_send_group_bcast()
1087 if (!dsts->local && !dsts->remote) in tipc_send_group_bcast()
1088 return -EHOSTUNREACH; in tipc_send_group_bcast()
1093 msg_set_nameinst(hdr, dest->addr.name.name.instance); in tipc_send_group_bcast()
1101 msg_set_grp_bc_seqno(hdr, tipc_group_bc_snd_nxt(tsk->group)); in tipc_send_group_bcast()
1113 rc = tipc_mcast_xmit(net, &pkts, method, dsts, &tsk->cong_link_cnt); in tipc_send_group_bcast()
1118 tipc_group_update_bc_members(tsk->group, blks, ack); in tipc_send_group_bcast()
1121 method->mandatory = false; in tipc_send_group_bcast()
1122 method->expires = jiffies; in tipc_send_group_bcast()
1128 * tipc_send_group_mcast - send message to all members with given identity
1140 struct sock *sk = sock->sk; in tipc_send_group_mcast()
1141 DECLARE_SOCKADDR(struct sockaddr_tipc *, dest, m->msg_name); in tipc_send_group_mcast()
1143 struct tipc_group *grp = tsk->group; in tipc_send_group_mcast()
1144 struct tipc_msg *hdr = &tsk->phdr; in tipc_send_group_mcast()
1153 inst = dest->addr.name.name.instance; in tipc_send_group_mcast()
1159 return -EHOSTUNREACH; in tipc_send_group_mcast()
1162 tipc_dest_pop(&dsts, &dest->addr.id.node, &dest->addr.id.ref); in tipc_send_group_mcast()
1171 * tipc_sk_mcast_rcv - Deliver multicast messages to all destination sockets
1175 * Multi-threaded: parallel calls with reference to same queues may occur
1193 skb = tipc_skb_peek(arrvq, &inputq->lock); in tipc_sk_mcast_rcv()
1194 for (; skb; skb = tipc_skb_peek(arrvq, &inputq->lock)) { in tipc_sk_mcast_rcv()
1203 spin_lock_bh(&inputq->lock); in tipc_sk_mcast_rcv()
1209 spin_unlock_bh(&inputq->lock); in tipc_sk_mcast_rcv()
1245 spin_lock_bh(&inputq->lock); in tipc_sk_mcast_rcv()
1253 spin_unlock_bh(&inputq->lock); in tipc_sk_mcast_rcv()
1265 struct sk_buff_head *txq = &tsk->sk.sk_write_queue; in tipc_sk_push_backlog()
1267 struct net *net = sock_net(&tsk->sk); in tipc_sk_push_backlog()
1272 tsk->pkt_cnt += skb_queue_len(txq); in tipc_sk_push_backlog()
1273 if (!tsk->pkt_cnt || tsk->msg_acc / tsk->pkt_cnt < 2) { in tipc_sk_push_backlog()
1274 tsk->oneway = 0; in tipc_sk_push_backlog()
1275 if (tsk->nagle_start < NAGLE_START_MAX) in tipc_sk_push_backlog()
1276 tsk->nagle_start *= 2; in tipc_sk_push_backlog()
1277 tsk->expect_ack = false; in tipc_sk_push_backlog()
1278 pr_debug("tsk %10u: bad nagle %u -> %u, next start %u!\n", in tipc_sk_push_backlog()
1279 tsk->portid, tsk->msg_acc, tsk->pkt_cnt, in tipc_sk_push_backlog()
1280 tsk->nagle_start); in tipc_sk_push_backlog()
1282 tsk->nagle_start = NAGLE_START_INIT; in tipc_sk_push_backlog()
1285 tsk->expect_ack = true; in tipc_sk_push_backlog()
1287 tsk->expect_ack = false; in tipc_sk_push_backlog()
1290 tsk->msg_acc = 0; in tipc_sk_push_backlog()
1291 tsk->pkt_cnt = 0; in tipc_sk_push_backlog()
1294 if (!skb || tsk->cong_link_cnt) in tipc_sk_push_backlog()
1301 if (tsk->msg_acc) in tipc_sk_push_backlog()
1302 tsk->pkt_cnt += skb_queue_len(txq); in tipc_sk_push_backlog()
1303 tsk->snt_unacked += tsk->snd_backlog; in tipc_sk_push_backlog()
1304 tsk->snd_backlog = 0; in tipc_sk_push_backlog()
1305 rc = tipc_node_xmit(net, txq, dnode, tsk->portid); in tipc_sk_push_backlog()
1306 if (rc == -ELINKCONG) in tipc_sk_push_backlog()
1307 tsk->cong_link_cnt = 1; in tipc_sk_push_backlog()
1311 * tipc_sk_conn_proto_rcv - receive a connection mng protocol message
1321 struct sock *sk = &tsk->sk; in tipc_sk_conn_proto_rcv()
1335 sk->sk_state_change(sk); in tipc_sk_conn_proto_rcv()
1338 * - convert msg to abort msg and add to inqueue in tipc_sk_conn_proto_rcv()
1348 tsk->probe_unacked = false; in tipc_sk_conn_proto_rcv()
1358 tsk->snt_unacked -= msg_conn_ack(hdr); in tipc_sk_conn_proto_rcv()
1359 if (tsk->peer_caps & TIPC_BLOCK_FLOWCTL) in tipc_sk_conn_proto_rcv()
1360 tsk->snd_win = msg_adv_win(hdr); in tipc_sk_conn_proto_rcv()
1362 sk->sk_write_space(sk); in tipc_sk_conn_proto_rcv()
1371 * tipc_sendmsg - send message in connectionless manner
1386 struct sock *sk = sock->sk; in tipc_sendmsg()
1398 struct sock *sk = sock->sk; in __tipc_sendmsg()
1401 DECLARE_SOCKADDR(struct sockaddr_tipc *, dest, m->msg_name); in __tipc_sendmsg()
1402 long timeout = sock_sndtimeo(sk, m->msg_flags & MSG_DONTWAIT); in __tipc_sendmsg()
1403 struct list_head *clinks = &tsk->cong_links; in __tipc_sendmsg()
1405 struct tipc_group *grp = tsk->group; in __tipc_sendmsg()
1406 struct tipc_msg *hdr = &tsk->phdr; in __tipc_sendmsg()
1414 return -EMSGSIZE; in __tipc_sendmsg()
1417 if (unlikely(m->msg_namelen < sizeof(*dest))) in __tipc_sendmsg()
1418 return -EINVAL; in __tipc_sendmsg()
1419 if (unlikely(dest->family != AF_TIPC)) in __tipc_sendmsg()
1420 return -EINVAL; in __tipc_sendmsg()
1426 if (dest->addrtype == TIPC_ADDR_NAME) in __tipc_sendmsg()
1428 if (dest->addrtype == TIPC_ADDR_ID) in __tipc_sendmsg()
1430 if (dest->addrtype == TIPC_ADDR_MCAST) in __tipc_sendmsg()
1432 return -EINVAL; in __tipc_sendmsg()
1436 dest = &tsk->peer; in __tipc_sendmsg()
1437 if (!syn && dest->family != AF_TIPC) in __tipc_sendmsg()
1438 return -EDESTADDRREQ; in __tipc_sendmsg()
1442 if (sk->sk_state == TIPC_LISTEN) in __tipc_sendmsg()
1443 return -EPIPE; in __tipc_sendmsg()
1444 if (sk->sk_state != TIPC_OPEN) in __tipc_sendmsg()
1445 return -EISCONN; in __tipc_sendmsg()
1446 if (tsk->published) in __tipc_sendmsg()
1447 return -EOPNOTSUPP; in __tipc_sendmsg()
1448 if (dest->addrtype == TIPC_ADDR_NAME) { in __tipc_sendmsg()
1449 tsk->conn_type = dest->addr.name.name.type; in __tipc_sendmsg()
1450 tsk->conn_instance = dest->addr.name.name.instance; in __tipc_sendmsg()
1455 seq = &dest->addr.nameseq; in __tipc_sendmsg()
1456 if (dest->addrtype == TIPC_ADDR_MCAST) in __tipc_sendmsg()
1459 if (dest->addrtype == TIPC_ADDR_NAME) { in __tipc_sendmsg()
1460 type = dest->addr.name.name.type; in __tipc_sendmsg()
1461 inst = dest->addr.name.name.instance; in __tipc_sendmsg()
1462 dnode = dest->addr.name.domain; in __tipc_sendmsg()
1465 return -EHOSTUNREACH; in __tipc_sendmsg()
1466 } else if (dest->addrtype == TIPC_ADDR_ID) { in __tipc_sendmsg()
1467 dnode = dest->addr.id.node; in __tipc_sendmsg()
1469 return -EINVAL; in __tipc_sendmsg()
1478 if (dest->addrtype == TIPC_ADDR_NAME) { in __tipc_sendmsg()
1490 msg_set_destport(hdr, dest->addr.id.ref); in __tipc_sendmsg()
1495 mtu = tipc_node_get_mtu(net, dnode, tsk->portid, true); in __tipc_sendmsg()
1499 if (unlikely(syn && !tipc_msg_skb_clone(&pkts, &sk->sk_write_queue))) { in __tipc_sendmsg()
1501 return -ENOMEM; in __tipc_sendmsg()
1505 rc = tipc_node_xmit(net, &pkts, dnode, tsk->portid); in __tipc_sendmsg()
1506 if (unlikely(rc == -ELINKCONG)) { in __tipc_sendmsg()
1508 tsk->cong_link_cnt++; in __tipc_sendmsg()
1524 * tipc_sendstream - send stream-oriented data
1536 struct sock *sk = sock->sk; in tipc_sendstream()
1548 struct sock *sk = sock->sk; in __tipc_sendstream()
1549 DECLARE_SOCKADDR(struct sockaddr_tipc *, dest, m->msg_name); in __tipc_sendstream()
1550 long timeout = sock_sndtimeo(sk, m->msg_flags & MSG_DONTWAIT); in __tipc_sendstream()
1551 struct sk_buff_head *txq = &sk->sk_write_queue; in __tipc_sendstream()
1553 struct tipc_msg *hdr = &tsk->phdr; in __tipc_sendstream()
1557 int maxnagle = tsk->maxnagle; in __tipc_sendstream()
1558 int maxpkt = tsk->max_pkt; in __tipc_sendstream()
1563 return -EMSGSIZE; in __tipc_sendstream()
1566 if (unlikely(dest && sk->sk_state == TIPC_OPEN)) { in __tipc_sendstream()
1569 tsk->peer_caps = tipc_node_get_capabilities(net, dnode); in __tipc_sendstream()
1570 tsk->snt_unacked = tsk_inc(tsk, dlen + msg_hdr_sz(hdr)); in __tipc_sendstream()
1577 (!tsk->cong_link_cnt && in __tipc_sendstream()
1582 send = min_t(size_t, dlen - sent, TIPC_MAX_USER_MSG_SIZE); in __tipc_sendstream()
1583 blocks = tsk->snd_backlog; in __tipc_sendstream()
1584 if (tsk->oneway++ >= tsk->nagle_start && maxnagle && in __tipc_sendstream()
1590 tsk->msg_acc++; in __tipc_sendstream()
1591 if (blocks <= 64 && tsk->expect_ack) { in __tipc_sendstream()
1592 tsk->snd_backlog = blocks; in __tipc_sendstream()
1596 tsk->pkt_cnt += skb_queue_len(txq); in __tipc_sendstream()
1601 tsk->expect_ack = true; in __tipc_sendstream()
1603 tsk->expect_ack = false; in __tipc_sendstream()
1605 tsk->msg_acc = 0; in __tipc_sendstream()
1606 tsk->pkt_cnt = 0; in __tipc_sendstream()
1616 rc = tipc_node_xmit(net, txq, dnode, tsk->portid); in __tipc_sendstream()
1617 if (unlikely(rc == -ELINKCONG)) { in __tipc_sendstream()
1618 tsk->cong_link_cnt = 1; in __tipc_sendstream()
1622 tsk->snt_unacked += blocks; in __tipc_sendstream()
1623 tsk->snd_backlog = 0; in __tipc_sendstream()
1632 * tipc_send_packet - send a connection-oriented message
1644 return -EMSGSIZE; in tipc_send_packet()
1649 /* tipc_sk_finish_conn - complete the setup of a connection
1654 struct sock *sk = &tsk->sk; in tipc_sk_finish_conn()
1656 struct tipc_msg *msg = &tsk->phdr; in tipc_sk_finish_conn()
1665 sk_reset_timer(sk, &sk->sk_timer, jiffies + CONN_PROBING_INTV); in tipc_sk_finish_conn()
1667 tipc_node_add_conn(net, peer_node, tsk->portid, peer_port); in tipc_sk_finish_conn()
1668 tsk->max_pkt = tipc_node_get_mtu(net, peer_node, tsk->portid, true); in tipc_sk_finish_conn()
1669 tsk->peer_caps = tipc_node_get_capabilities(net, peer_node); in tipc_sk_finish_conn()
1671 __skb_queue_purge(&sk->sk_write_queue); in tipc_sk_finish_conn()
1672 if (tsk->peer_caps & TIPC_BLOCK_FLOWCTL) in tipc_sk_finish_conn()
1676 tsk->rcv_win = FLOWCTL_MSG_WIN; in tipc_sk_finish_conn()
1677 tsk->snd_win = FLOWCTL_MSG_WIN; in tipc_sk_finish_conn()
1681 * tipc_sk_set_orig_addr - capture sender's address for received message
1689 DECLARE_SOCKADDR(struct sockaddr_pair *, srcaddr, m->msg_name); in tipc_sk_set_orig_addr()
1695 srcaddr->sock.family = AF_TIPC; in tipc_sk_set_orig_addr()
1696 srcaddr->sock.addrtype = TIPC_ADDR_ID; in tipc_sk_set_orig_addr()
1697 srcaddr->sock.scope = 0; in tipc_sk_set_orig_addr()
1698 srcaddr->sock.addr.id.ref = msg_origport(hdr); in tipc_sk_set_orig_addr()
1699 srcaddr->sock.addr.id.node = msg_orignode(hdr); in tipc_sk_set_orig_addr()
1700 srcaddr->sock.addr.name.domain = 0; in tipc_sk_set_orig_addr()
1701 m->msg_namelen = sizeof(struct sockaddr_tipc); in tipc_sk_set_orig_addr()
1707 srcaddr->member.family = AF_TIPC; in tipc_sk_set_orig_addr()
1708 srcaddr->member.addrtype = TIPC_ADDR_NAME; in tipc_sk_set_orig_addr()
1709 srcaddr->member.scope = 0; in tipc_sk_set_orig_addr()
1710 srcaddr->member.addr.name.name.type = msg_nametype(hdr); in tipc_sk_set_orig_addr()
1711 srcaddr->member.addr.name.name.instance = TIPC_SKB_CB(skb)->orig_member; in tipc_sk_set_orig_addr()
1712 srcaddr->member.addr.name.domain = 0; in tipc_sk_set_orig_addr()
1713 m->msg_namelen = sizeof(*srcaddr); in tipc_sk_set_orig_addr()
1717 * tipc_sk_anc_data_recv - optionally capture ancillary data for received message
1734 int res; in tipc_sk_anc_data_recv() local
1736 if (likely(m->msg_controllen == 0)) in tipc_sk_anc_data_recv()
1745 res = put_cmsg(m, SOL_TIPC, TIPC_ERRINFO, 8, anc_data); in tipc_sk_anc_data_recv()
1746 if (res) in tipc_sk_anc_data_recv()
1747 return res; in tipc_sk_anc_data_recv()
1750 return -ENOMEM; in tipc_sk_anc_data_recv()
1752 res = put_cmsg(m, SOL_TIPC, TIPC_RETDATA, anc_data[1], in tipc_sk_anc_data_recv()
1754 if (res) in tipc_sk_anc_data_recv()
1755 return res; in tipc_sk_anc_data_recv()
1775 has_name = (tsk->conn_type != 0); in tipc_sk_anc_data_recv()
1776 anc_data[0] = tsk->conn_type; in tipc_sk_anc_data_recv()
1777 anc_data[1] = tsk->conn_instance; in tipc_sk_anc_data_recv()
1778 anc_data[2] = tsk->conn_instance; in tipc_sk_anc_data_recv()
1784 res = put_cmsg(m, SOL_TIPC, TIPC_DESTNAME, 12, anc_data); in tipc_sk_anc_data_recv()
1785 if (res) in tipc_sk_anc_data_recv()
1786 return res; in tipc_sk_anc_data_recv()
1794 struct sock *sk = &tsk->sk; in tipc_sk_build_ack()
1804 tsk->portid, TIPC_OK); in tipc_sk_build_ack()
1808 msg_set_conn_ack(msg, tsk->rcv_unacked); in tipc_sk_build_ack()
1809 tsk->rcv_unacked = 0; in tipc_sk_build_ack()
1812 if (tsk->peer_caps & TIPC_BLOCK_FLOWCTL) { in tipc_sk_build_ack()
1813 tsk->rcv_win = tsk_adv_blocks(tsk->sk.sk_rcvbuf); in tipc_sk_build_ack()
1814 msg_set_adv_win(msg, tsk->rcv_win); in tipc_sk_build_ack()
1827 tipc_node_xmit_skb(sock_net(&tsk->sk), skb, tsk_peer_node(tsk), in tipc_sk_send_ack()
1833 struct sock *sk = sock->sk; in tipc_wait_for_rcvmsg()
1842 if (timeo && skb_queue_empty(&sk->sk_receive_queue)) { in tipc_wait_for_rcvmsg()
1843 if (sk->sk_shutdown & RCV_SHUTDOWN) { in tipc_wait_for_rcvmsg()
1844 err = -ENOTCONN; in tipc_wait_for_rcvmsg()
1855 if (!skb_queue_empty(&sk->sk_receive_queue)) in tipc_wait_for_rcvmsg()
1857 err = -EAGAIN; in tipc_wait_for_rcvmsg()
1873 * tipc_recvmsg - receive packet-oriented message
1886 struct sock *sk = sock->sk; in tipc_recvmsg()
1899 return -EINVAL; in tipc_recvmsg()
1902 if (unlikely(connected && sk->sk_state == TIPC_OPEN)) { in tipc_recvmsg()
1903 rc = -ENOTCONN; in tipc_recvmsg()
1913 skb = skb_peek(&sk->sk_receive_queue); in tipc_recvmsg()
1932 /* Capture data if non-error msg, otherwise just set return value */ in tipc_recvmsg()
1934 int offset = skb_cb->bytes_read; in tipc_recvmsg() local
1936 copy = min_t(int, dlen - offset, buflen); in tipc_recvmsg()
1937 rc = skb_copy_datagram_msg(skb, hlen + offset, m, copy); in tipc_recvmsg()
1940 if (unlikely(offset + copy < dlen)) { in tipc_recvmsg()
1943 skb_cb->bytes_read = offset + copy; in tipc_recvmsg()
1945 m->msg_flags |= MSG_TRUNC; in tipc_recvmsg()
1946 skb_cb->bytes_read = 0; in tipc_recvmsg()
1950 m->msg_flags |= MSG_EOR; in tipc_recvmsg()
1951 skb_cb->bytes_read = 0; in tipc_recvmsg()
1956 if (err != TIPC_CONN_SHUTDOWN && connected && !m->msg_control) { in tipc_recvmsg()
1957 rc = -ECONNRESET; in tipc_recvmsg()
1965 m->msg_flags |= MSG_EOR; in tipc_recvmsg()
1966 m->msg_flags |= MSG_OOB; in tipc_recvmsg()
1975 if (tsk->group && msg_in_group(hdr) && !grp_evt) { in tipc_recvmsg()
1977 tipc_group_update_rcv_win(tsk->group, tsk_blocks(hlen + dlen), in tipc_recvmsg()
1983 if (skb_cb->bytes_read) in tipc_recvmsg()
1992 tsk->rcv_unacked += tsk_inc(tsk, hlen + dlen); in tipc_recvmsg()
1993 if (tsk->rcv_unacked >= tsk->rcv_win / TIPC_ACK_RATE) in tipc_recvmsg()
2001 * tipc_recvstream - receive stream-oriented data
2014 struct sock *sk = sock->sk; in tipc_recvstream()
2020 int offset, required, copy, copied = 0; in tipc_recvstream() local
2026 return -EINVAL; in tipc_recvstream()
2030 if (unlikely(sk->sk_state == TIPC_OPEN)) { in tipc_recvstream()
2031 rc = -ENOTCONN; in tipc_recvstream()
2042 skb = skb_peek(&sk->sk_receive_queue); in tipc_recvstream()
2049 /* Discard any empty non-errored (SYN-) message */ in tipc_recvstream()
2066 offset = skb_cb->bytes_read; in tipc_recvstream()
2067 copy = min_t(int, dlen - offset, buflen - copied); in tipc_recvstream()
2068 rc = skb_copy_datagram_msg(skb, hlen + offset, m, copy); in tipc_recvstream()
2072 offset += copy; in tipc_recvstream()
2073 if (unlikely(offset < dlen)) { in tipc_recvstream()
2075 skb_cb->bytes_read = offset; in tipc_recvstream()
2080 if ((err != TIPC_CONN_SHUTDOWN) && !m->msg_control) in tipc_recvstream()
2081 rc = -ECONNRESET; in tipc_recvstream()
2092 tsk->rcv_unacked += tsk_inc(tsk, hlen + dlen); in tipc_recvstream()
2093 if (tsk->rcv_unacked >= tsk->rcv_win / TIPC_ACK_RATE) in tipc_recvstream()
2100 } while (!skb_queue_empty(&sk->sk_receive_queue) || copied < required); in tipc_recvstream()
2107 * tipc_write_space - wake up thread if port congestion is released
2115 wq = rcu_dereference(sk->sk_wq); in tipc_write_space()
2117 wake_up_interruptible_sync_poll(&wq->wait, EPOLLOUT | in tipc_write_space()
2123 * tipc_data_ready - wake up threads to indicate messages have been received
2131 wq = rcu_dereference(sk->sk_wq); in tipc_data_ready()
2133 wake_up_interruptible_sync_poll(&wq->wait, EPOLLIN | in tipc_data_ready()
2140 __skb_queue_purge(&sk->sk_receive_queue); in tipc_sock_destruct()
2150 struct tipc_group *grp = tsk->group; in tipc_sk_proto_rcv()
2158 tipc_dest_del(&tsk->cong_links, msg_orignode(hdr), 0); in tipc_sk_proto_rcv()
2161 tsk->cong_link_cnt--; in tipc_sk_proto_rcv()
2169 tipc_group_member_evt(tsk->group, &wakeup, &sk->sk_rcvbuf, in tipc_sk_proto_rcv()
2177 sk->sk_write_space(sk); in tipc_sk_proto_rcv()
2183 * tipc_sk_filter_connect - check incoming message for a connection-based socket
2192 struct sock *sk = &tsk->sk; in tipc_sk_filter_connect()
2205 tsk->oneway = 0; in tipc_sk_filter_connect()
2207 switch (sk->sk_state) { in tipc_sk_filter_connect()
2214 msg_set_importance(&tsk->phdr, msg_importance(hdr)); in tipc_sk_filter_connect()
2218 /* Empty ACK-, - wake up sleeping connect() and drop */ in tipc_sk_filter_connect()
2219 sk->sk_state_change(sk); in tipc_sk_filter_connect()
2232 if (skb_queue_empty(&sk->sk_write_queue)) in tipc_sk_filter_connect()
2235 delay %= (tsk->conn_timeout / 4); in tipc_sk_filter_connect()
2237 sk_reset_timer(sk, &sk->sk_timer, jiffies + delay); in tipc_sk_filter_connect()
2251 if (!skb_queue_empty(&sk->sk_write_queue)) in tipc_sk_filter_connect()
2253 /* Accept only connection-based messages sent by peer */ in tipc_sk_filter_connect()
2272 tipc_node_remove_conn(net, pnode, tsk->portid); in tipc_sk_filter_connect()
2273 sk->sk_state_change(sk); in tipc_sk_filter_connect()
2276 pr_err("Unknown sk_state %u\n", sk->sk_state); in tipc_sk_filter_connect()
2280 sk->sk_err = ECONNREFUSED; in tipc_sk_filter_connect()
2281 sk->sk_state_change(sk); in tipc_sk_filter_connect()
2286 * rcvbuf_limit - get proper overload limit of socket receive queue
2309 return READ_ONCE(sk->sk_rcvbuf); in rcvbuf_limit()
2312 return READ_ONCE(sk->sk_rcvbuf) << msg_importance(hdr); in rcvbuf_limit()
2314 if (likely(tsk->peer_caps & TIPC_BLOCK_FLOWCTL)) in rcvbuf_limit()
2315 return READ_ONCE(sk->sk_rcvbuf); in rcvbuf_limit()
2321 * tipc_sk_filter_rcv - validate incoming message
2336 struct tipc_group *grp = tsk->group; in tipc_sk_filter_rcv()
2344 TIPC_SKB_CB(skb)->bytes_read = 0; in tipc_sk_filter_rcv()
2355 tipc_mcast_filter_msg(net, &tsk->mc_method.deferredq, &inputq); in tipc_sk_filter_rcv()
2365 else if (sk_rmem_alloc_get(sk) + skb->truesize >= limit) { in tipc_sk_filter_rcv()
2368 atomic_inc(&sk->sk_drops); in tipc_sk_filter_rcv()
2381 __skb_queue_tail(&sk->sk_receive_queue, skb); in tipc_sk_filter_rcv()
2385 sk->sk_data_ready(sk); in tipc_sk_filter_rcv()
2390 * tipc_sk_backlog_rcv - handle incoming message from backlog queue
2405 added = sk_rmem_alloc_get(sk) - before; in tipc_sk_backlog_rcv()
2406 atomic_add(added, &tipc_sk(sk)->dupl_rcvcnt); in tipc_sk_backlog_rcv()
2414 * tipc_sk_enqueue - extract all buffers with destination 'dport' from
2445 /* Try backlog, compensating for double-counted bytes */ in tipc_sk_enqueue()
2446 dcnt = &tipc_sk(sk)->dupl_rcvcnt; in tipc_sk_enqueue()
2447 if (!sk->sk_backlog.len) in tipc_sk_enqueue()
2459 atomic_inc(&sk->sk_drops); in tipc_sk_enqueue()
2470 * tipc_sk_rcv - handle a chain of incoming buffers
2490 sk = &tsk->sk; in tipc_sk_rcv()
2491 if (likely(spin_trylock_bh(&sk->sk_lock.slock))) { in tipc_sk_rcv()
2493 spin_unlock_bh(&sk->sk_lock.slock); in tipc_sk_rcv()
2524 struct sock *sk = sock->sk; in tipc_wait_for_connect()
2532 return -ETIMEDOUT; in tipc_wait_for_connect()
2535 if (sk->sk_state == TIPC_DISCONNECTING) in tipc_wait_for_connect()
2548 if (addr->family != AF_TIPC) in tipc_sockaddr_is_sane()
2550 if (addr->addrtype == TIPC_SERVICE_RANGE) in tipc_sockaddr_is_sane()
2551 return (addr->addr.nameseq.lower <= addr->addr.nameseq.upper); in tipc_sockaddr_is_sane()
2552 return (addr->addrtype == TIPC_SERVICE_ADDR || in tipc_sockaddr_is_sane()
2553 addr->addrtype == TIPC_SOCKET_ADDR); in tipc_sockaddr_is_sane()
2557 * tipc_connect - establish a connection to another TIPC port
2561 * @flags: file-related flags associated with socket
2568 struct sock *sk = sock->sk; in tipc_connect()
2572 long timeout = (flags & O_NONBLOCK) ? 0 : tsk->conn_timeout; in tipc_connect()
2574 int res = 0; in tipc_connect() local
2577 return -EINVAL; in tipc_connect()
2581 if (tsk->group) { in tipc_connect()
2582 res = -EINVAL; in tipc_connect()
2586 if (dst->family == AF_UNSPEC) { in tipc_connect()
2587 memset(&tsk->peer, 0, sizeof(struct sockaddr_tipc)); in tipc_connect()
2589 res = -EINVAL; in tipc_connect()
2593 res = -EINVAL; in tipc_connect()
2598 memcpy(&tsk->peer, dest, destlen); in tipc_connect()
2600 } else if (dst->addrtype == TIPC_SERVICE_RANGE) { in tipc_connect()
2601 res = -EINVAL; in tipc_connect()
2605 previous = sk->sk_state; in tipc_connect()
2607 switch (sk->sk_state) { in tipc_connect()
2609 /* Send a 'SYN-' to destination */ in tipc_connect()
2613 /* If connect is in non-blocking case, set MSG_DONTWAIT to in tipc_connect()
2619 res = __tipc_sendmsg(sock, &m, 0); in tipc_connect()
2620 if ((res < 0) && (res != -EWOULDBLOCK)) in tipc_connect()
2624 * difference is that return value in non-blocking in tipc_connect()
2627 res = -EINPROGRESS; in tipc_connect()
2632 res = -EALREADY; in tipc_connect()
2637 res = tipc_wait_for_connect(sock, &timeout); in tipc_connect()
2640 res = -EISCONN; in tipc_connect()
2643 res = -EINVAL; in tipc_connect()
2648 return res; in tipc_connect()
2652 * tipc_listen - allow socket to listen for incoming connections
2660 struct sock *sk = sock->sk; in tipc_listen()
2661 int res; in tipc_listen() local
2664 res = tipc_set_sk_state(sk, TIPC_LISTEN); in tipc_listen()
2667 return res; in tipc_listen()
2672 struct sock *sk = sock->sk; in tipc_wait_for_accept()
2676 /* True wake-one mechanism for incoming connections: only in tipc_wait_for_accept()
2682 if (timeo && skb_queue_empty(&sk->sk_receive_queue)) { in tipc_wait_for_accept()
2690 if (!skb_queue_empty(&sk->sk_receive_queue)) in tipc_wait_for_accept()
2692 err = -EAGAIN; in tipc_wait_for_accept()
2703 * tipc_accept - wait for connection request
2706 * @flags: file-related flags associated with socket
2713 struct sock *new_sk, *sk = sock->sk; in tipc_accept()
2719 int res; in tipc_accept() local
2723 if (sk->sk_state != TIPC_LISTEN) { in tipc_accept()
2724 res = -EINVAL; in tipc_accept()
2728 res = tipc_wait_for_accept(sock, timeo); in tipc_accept()
2729 if (res) in tipc_accept()
2732 buf = skb_peek(&sk->sk_receive_queue); in tipc_accept()
2734 res = tipc_sk_create(sock_net(sock->sk), new_sock, 0, kern); in tipc_accept()
2735 if (res) in tipc_accept()
2737 security_sk_clone(sock->sk, new_sock->sk); in tipc_accept()
2739 new_sk = new_sock->sk; in tipc_accept()
2757 new_tsock->conn_type = msg_nametype(msg); in tipc_accept()
2758 new_tsock->conn_instance = msg_nameinst(msg); in tipc_accept()
2762 * Respond to 'SYN-' by discarding it & returning 'ACK'. in tipc_accept()
2768 __skb_dequeue(&sk->sk_receive_queue); in tipc_accept()
2769 __skb_queue_head(&new_sk->sk_receive_queue, buf); in tipc_accept()
2776 return res; in tipc_accept()
2780 * tipc_shutdown - shutdown socket connection
2790 struct sock *sk = sock->sk; in tipc_shutdown()
2791 int res; in tipc_shutdown() local
2794 return -EINVAL; in tipc_shutdown()
2800 sk->sk_shutdown = SHUTDOWN_MASK; in tipc_shutdown()
2802 if (sk->sk_state == TIPC_DISCONNECTING) { in tipc_shutdown()
2804 __skb_queue_purge(&sk->sk_receive_queue); in tipc_shutdown()
2806 res = 0; in tipc_shutdown()
2808 res = -ENOTCONN; in tipc_shutdown()
2811 sk->sk_state_change(sk); in tipc_shutdown()
2814 return res; in tipc_shutdown()
2824 u32 oport = tsk->portid; in tipc_sk_check_probing_state()
2827 if (tsk->probe_unacked) { in tipc_sk_check_probing_state()
2829 sk->sk_err = ECONNABORTED; in tipc_sk_check_probing_state()
2831 sk->sk_state_change(sk); in tipc_sk_check_probing_state()
2839 tsk->probe_unacked = true; in tipc_sk_check_probing_state()
2840 sk_reset_timer(sk, &sk->sk_timer, jiffies + CONN_PROBING_INTV); in tipc_sk_check_probing_state()
2848 if (tsk->cong_link_cnt) { in tipc_sk_retry_connect()
2849 sk_reset_timer(sk, &sk->sk_timer, msecs_to_jiffies(100)); in tipc_sk_retry_connect()
2853 tipc_msg_skb_clone(&sk->sk_write_queue, list); in tipc_sk_retry_connect()
2869 sk_reset_timer(sk, &sk->sk_timer, jiffies + HZ / 20); in tipc_sk_timeout()
2875 if (sk->sk_state == TIPC_ESTABLISHED) in tipc_sk_timeout()
2877 else if (sk->sk_state == TIPC_CONNECTING) in tipc_sk_timeout()
2883 rc = tipc_node_xmit(sock_net(sk), &list, pnode, tsk->portid); in tipc_sk_timeout()
2886 if (rc == -ELINKCONG) { in tipc_sk_timeout()
2887 tipc_dest_push(&tsk->cong_links, pnode, 0); in tipc_sk_timeout()
2888 tsk->cong_link_cnt = 1; in tipc_sk_timeout()
2896 struct sock *sk = &tsk->sk; in tipc_sk_publish()
2905 return -EINVAL; in tipc_sk_publish()
2906 key = tsk->portid + tsk->pub_count + 1; in tipc_sk_publish()
2907 if (key == tsk->portid) in tipc_sk_publish()
2908 return -EADDRINUSE; in tipc_sk_publish()
2910 publ = tipc_nametbl_publish(net, seq->type, seq->lower, seq->upper, in tipc_sk_publish()
2911 scope, tsk->portid, key); in tipc_sk_publish()
2913 return -EINVAL; in tipc_sk_publish()
2915 list_add(&publ->binding_sock, &tsk->publications); in tipc_sk_publish()
2916 tsk->pub_count++; in tipc_sk_publish()
2917 tsk->published = 1; in tipc_sk_publish()
2924 struct net *net = sock_net(&tsk->sk); in tipc_sk_withdraw()
2927 int rc = -EINVAL; in tipc_sk_withdraw()
2932 list_for_each_entry_safe(publ, safe, &tsk->publications, binding_sock) { in tipc_sk_withdraw()
2934 if (publ->scope != scope) in tipc_sk_withdraw()
2936 if (publ->type != seq->type) in tipc_sk_withdraw()
2938 if (publ->lower != seq->lower) in tipc_sk_withdraw()
2940 if (publ->upper != seq->upper) in tipc_sk_withdraw()
2942 tipc_nametbl_withdraw(net, publ->type, publ->lower, in tipc_sk_withdraw()
2943 publ->upper, publ->key); in tipc_sk_withdraw()
2947 tipc_nametbl_withdraw(net, publ->type, publ->lower, in tipc_sk_withdraw()
2948 publ->upper, publ->key); in tipc_sk_withdraw()
2951 if (list_empty(&tsk->publications)) in tipc_sk_withdraw()
2952 tsk->published = 0; in tipc_sk_withdraw()
2956 /* tipc_sk_reinit: set non-zero address in all existing sockets
2966 rhashtable_walk_enter(&tn->sk_rht, &iter); in tipc_sk_reinit()
2972 sock_hold(&tsk->sk); in tipc_sk_reinit()
2974 lock_sock(&tsk->sk); in tipc_sk_reinit()
2975 msg = &tsk->phdr; in tipc_sk_reinit()
2978 release_sock(&tsk->sk); in tipc_sk_reinit()
2980 sock_put(&tsk->sk); in tipc_sk_reinit()
2984 } while (tsk == ERR_PTR(-EAGAIN)); in tipc_sk_reinit()
2995 tsk = rhashtable_lookup(&tn->sk_rht, &portid, tsk_rht_params); in tipc_sk_lookup()
2997 sock_hold(&tsk->sk); in tipc_sk_lookup()
3005 struct sock *sk = &tsk->sk; in tipc_sk_insert()
3008 u32 remaining = (TIPC_MAX_PORT - TIPC_MIN_PORT) + 1; in tipc_sk_insert()
3011 while (remaining--) { in tipc_sk_insert()
3015 tsk->portid = portid; in tipc_sk_insert()
3016 sock_hold(&tsk->sk); in tipc_sk_insert()
3017 if (!rhashtable_lookup_insert_fast(&tn->sk_rht, &tsk->node, in tipc_sk_insert()
3020 sock_put(&tsk->sk); in tipc_sk_insert()
3023 return -1; in tipc_sk_insert()
3028 struct sock *sk = &tsk->sk; in tipc_sk_remove()
3031 if (!rhashtable_remove_fast(&tn->sk_rht, &tsk->node, tsk_rht_params)) { in tipc_sk_remove()
3032 WARN_ON(refcount_read(&sk->sk_refcnt) == 1); in tipc_sk_remove()
3051 return rhashtable_init(&tn->sk_rht, &tsk_rht_params); in tipc_sk_rht_init()
3061 rhashtable_destroy(&tn->sk_rht); in tipc_sk_rht_destroy()
3066 struct net *net = sock_net(&tsk->sk); in tipc_sk_join()
3067 struct tipc_group *grp = tsk->group; in tipc_sk_join()
3068 struct tipc_msg *hdr = &tsk->phdr; in tipc_sk_join()
3072 if (mreq->type < TIPC_RESERVED_TYPES) in tipc_sk_join()
3073 return -EACCES; in tipc_sk_join()
3074 if (mreq->scope > TIPC_NODE_SCOPE) in tipc_sk_join()
3075 return -EINVAL; in tipc_sk_join()
3077 return -EACCES; in tipc_sk_join()
3078 grp = tipc_group_create(net, tsk->portid, mreq, &tsk->group_is_open); in tipc_sk_join()
3080 return -ENOMEM; in tipc_sk_join()
3081 tsk->group = grp; in tipc_sk_join()
3082 msg_set_lookup_scope(hdr, mreq->scope); in tipc_sk_join()
3083 msg_set_nametype(hdr, mreq->type); in tipc_sk_join()
3085 seq.type = mreq->type; in tipc_sk_join()
3086 seq.lower = mreq->instance; in tipc_sk_join()
3088 tipc_nametbl_build_group(net, grp, mreq->type, mreq->scope); in tipc_sk_join()
3089 rc = tipc_sk_publish(tsk, mreq->scope, &seq); in tipc_sk_join()
3092 tsk->group = NULL; in tipc_sk_join()
3096 tsk->mc_method.rcast = true; in tipc_sk_join()
3097 tsk->mc_method.mandatory = true; in tipc_sk_join()
3098 tipc_group_join(net, grp, &tsk->sk.sk_rcvbuf); in tipc_sk_join()
3104 struct net *net = sock_net(&tsk->sk); in tipc_sk_leave()
3105 struct tipc_group *grp = tsk->group; in tipc_sk_leave()
3110 return -EINVAL; in tipc_sk_leave()
3113 tsk->group = NULL; in tipc_sk_leave()
3119 * tipc_setsockopt - set socket option
3123 * @ov: pointer to new option value
3124 * @ol: length of option value
3134 struct sock *sk = sock->sk; in tipc_setsockopt()
3137 u32 value = 0; in tipc_setsockopt() local
3138 int res = 0; in tipc_setsockopt() local
3140 if ((lvl == IPPROTO_TCP) && (sock->type == SOCK_STREAM)) in tipc_setsockopt()
3143 return -ENOPROTOOPT; in tipc_setsockopt()
3151 if (ol < sizeof(value)) in tipc_setsockopt()
3152 return -EINVAL; in tipc_setsockopt()
3153 if (copy_from_sockptr(&value, ov, sizeof(u32))) in tipc_setsockopt()
3154 return -EFAULT; in tipc_setsockopt()
3158 return -EINVAL; in tipc_setsockopt()
3160 return -EFAULT; in tipc_setsockopt()
3164 return -EINVAL; in tipc_setsockopt()
3171 res = tsk_set_importance(sk, value); in tipc_setsockopt()
3174 if (sock->type != SOCK_STREAM) in tipc_setsockopt()
3175 tsk_set_unreliable(tsk, value); in tipc_setsockopt()
3177 res = -ENOPROTOOPT; in tipc_setsockopt()
3180 tsk_set_unreturnable(tsk, value); in tipc_setsockopt()
3183 tipc_sk(sk)->conn_timeout = value; in tipc_setsockopt()
3186 tsk->mc_method.rcast = false; in tipc_setsockopt()
3187 tsk->mc_method.mandatory = true; in tipc_setsockopt()
3190 tsk->mc_method.rcast = true; in tipc_setsockopt()
3191 tsk->mc_method.mandatory = true; in tipc_setsockopt()
3194 res = tipc_sk_join(tsk, &mreq); in tipc_setsockopt()
3197 res = tipc_sk_leave(tsk); in tipc_setsockopt()
3200 tsk->nodelay = !!value; in tipc_setsockopt()
3204 res = -EINVAL; in tipc_setsockopt()
3209 return res; in tipc_setsockopt()
3213 * tipc_getsockopt - get socket option
3217 * @ov: receptacle for option value
3218 * @ol: receptacle for length of option value
3228 struct sock *sk = sock->sk; in tipc_getsockopt()
3232 u32 value; in tipc_getsockopt() local
3233 int res; in tipc_getsockopt() local
3235 if ((lvl == IPPROTO_TCP) && (sock->type == SOCK_STREAM)) in tipc_getsockopt()
3238 return -ENOPROTOOPT; in tipc_getsockopt()
3239 res = get_user(len, ol); in tipc_getsockopt()
3240 if (res) in tipc_getsockopt()
3241 return res; in tipc_getsockopt()
3247 value = tsk_importance(tsk); in tipc_getsockopt()
3250 value = tsk_unreliable(tsk); in tipc_getsockopt()
3253 value = tsk_unreturnable(tsk); in tipc_getsockopt()
3256 value = tsk->conn_timeout; in tipc_getsockopt()
3257 /* no need to set "res", since already 0 at this point */ in tipc_getsockopt()
3260 value = 0; /* was tipc_queue_size, now obsolete */ in tipc_getsockopt()
3263 value = skb_queue_len(&sk->sk_receive_queue); in tipc_getsockopt()
3266 value = sk_rmem_alloc_get(sk); in tipc_getsockopt()
3270 if (tsk->group) in tipc_getsockopt()
3271 tipc_group_self(tsk->group, &seq, &scope); in tipc_getsockopt()
3272 value = seq.type; in tipc_getsockopt()
3275 res = -EINVAL; in tipc_getsockopt()
3280 if (res) in tipc_getsockopt()
3281 return res; /* "get" failed */ in tipc_getsockopt()
3283 if (len < sizeof(value)) in tipc_getsockopt()
3284 return -EINVAL; in tipc_getsockopt()
3286 if (copy_to_user(ov, &value, sizeof(value))) in tipc_getsockopt()
3287 return -EFAULT; in tipc_getsockopt()
3289 return put_user(sizeof(value), ol); in tipc_getsockopt()
3294 struct net *net = sock_net(sock->sk); in tipc_ioctl()
3302 return -EFAULT; in tipc_ioctl()
3307 return -EFAULT; in tipc_ioctl()
3310 return -EADDRNOTAVAIL; in tipc_ioctl()
3313 return -EFAULT; in tipc_ioctl()
3315 return -EADDRNOTAVAIL; in tipc_ioctl()
3317 return -EFAULT; in tipc_ioctl()
3320 return -ENOIOCTLCMD; in tipc_ioctl()
3326 struct tipc_sock *tsk2 = tipc_sk(sock2->sk); in tipc_socketpair()
3327 struct tipc_sock *tsk1 = tipc_sk(sock1->sk); in tipc_socketpair()
3328 u32 onode = tipc_own_addr(sock_net(sock1->sk)); in tipc_socketpair()
3330 tsk1->peer.family = AF_TIPC; in tipc_socketpair()
3331 tsk1->peer.addrtype = TIPC_ADDR_ID; in tipc_socketpair()
3332 tsk1->peer.scope = TIPC_NODE_SCOPE; in tipc_socketpair()
3333 tsk1->peer.addr.id.ref = tsk2->portid; in tipc_socketpair()
3334 tsk1->peer.addr.id.node = onode; in tipc_socketpair()
3335 tsk2->peer.family = AF_TIPC; in tipc_socketpair()
3336 tsk2->peer.addrtype = TIPC_ADDR_ID; in tipc_socketpair()
3337 tsk2->peer.scope = TIPC_NODE_SCOPE; in tipc_socketpair()
3338 tsk2->peer.addr.id.ref = tsk1->portid; in tipc_socketpair()
3339 tsk2->peer.addr.id.node = onode; in tipc_socketpair()
3341 tipc_sk_finish_conn(tsk1, tsk2->portid, onode); in tipc_socketpair()
3342 tipc_sk_finish_conn(tsk2, tsk1->portid, onode); in tipc_socketpair()
3425 * tipc_socket_init - initialize TIPC socket interface
3431 int res; in tipc_socket_init() local
3433 res = proto_register(&tipc_proto, 1); in tipc_socket_init()
3434 if (res) { in tipc_socket_init()
3439 res = sock_register(&tipc_family_ops); in tipc_socket_init()
3440 if (res) { in tipc_socket_init()
3446 return res; in tipc_socket_init()
3450 * tipc_socket_stop - stop TIPC socket interface
3470 return -EMSGSIZE; in __tipc_nl_add_sk_con()
3477 if (tsk->conn_type != 0) { in __tipc_nl_add_sk_con()
3480 if (nla_put_u32(skb, TIPC_NLA_CON_TYPE, tsk->conn_type)) in __tipc_nl_add_sk_con()
3482 if (nla_put_u32(skb, TIPC_NLA_CON_INST, tsk->conn_instance)) in __tipc_nl_add_sk_con()
3492 return -EMSGSIZE; in __tipc_nl_add_sk_con()
3498 struct net *net = sock_net(skb->sk); in __tipc_nl_add_sk_info()
3499 struct sock *sk = &tsk->sk; in __tipc_nl_add_sk_info()
3501 if (nla_put_u32(skb, TIPC_NLA_SOCK_REF, tsk->portid) || in __tipc_nl_add_sk_info()
3503 return -EMSGSIZE; in __tipc_nl_add_sk_info()
3507 return -EMSGSIZE; in __tipc_nl_add_sk_info()
3508 } else if (!list_empty(&tsk->publications)) { in __tipc_nl_add_sk_info()
3510 return -EMSGSIZE; in __tipc_nl_add_sk_info()
3522 hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, in __tipc_nl_add_sk()
3544 return -EMSGSIZE; in __tipc_nl_add_sk()
3552 struct rhashtable_iter *iter = (void *)cb->args[4]; in tipc_nl_sk_walk()
3560 if (err == -EAGAIN) { in tipc_nl_sk_walk()
3567 sock_hold(&tsk->sk); in tipc_nl_sk_walk()
3569 lock_sock(&tsk->sk); in tipc_nl_sk_walk()
3572 release_sock(&tsk->sk); in tipc_nl_sk_walk()
3573 sock_put(&tsk->sk); in tipc_nl_sk_walk()
3576 release_sock(&tsk->sk); in tipc_nl_sk_walk()
3578 sock_put(&tsk->sk); in tipc_nl_sk_walk()
3582 return skb->len; in tipc_nl_sk_walk()
3588 return __tipc_dump_start(cb, sock_net(cb->skb->sk)); in tipc_dump_start()
3594 /* tipc_nl_name_table_dump() uses cb->args[0...3]. */ in __tipc_dump_start()
3595 struct rhashtable_iter *iter = (void *)cb->args[4]; in __tipc_dump_start()
3601 return -ENOMEM; in __tipc_dump_start()
3603 cb->args[4] = (long)iter; in __tipc_dump_start()
3606 rhashtable_walk_enter(&tn->sk_rht, iter); in __tipc_dump_start()
3612 struct rhashtable_iter *hti = (void *)cb->args[4]; in tipc_dump_done()
3624 struct sock *sk = &tsk->sk; in tipc_sk_fill_sock_diag()
3629 if (!(sk_filter_state & (1 << sk->sk_state))) in tipc_sk_fill_sock_diag()
3639 if (nla_put_u32(skb, TIPC_NLA_SOCK_TYPE, (u32)sk->sk_type) || in tipc_sk_fill_sock_diag()
3640 nla_put_u32(skb, TIPC_NLA_SOCK_TIPC_STATE, (u32)sk->sk_state) || in tipc_sk_fill_sock_diag()
3643 from_kuid_munged(sk_user_ns(NETLINK_CB(cb->skb).sk), in tipc_sk_fill_sock_diag()
3655 skb_queue_len(&sk->sk_receive_queue)) || in tipc_sk_fill_sock_diag()
3657 skb_queue_len(&sk->sk_write_queue)) || in tipc_sk_fill_sock_diag()
3659 atomic_read(&sk->sk_drops))) in tipc_sk_fill_sock_diag()
3662 if (tsk->cong_link_cnt && in tipc_sk_fill_sock_diag()
3672 if (tsk->group) in tipc_sk_fill_sock_diag()
3673 if (tipc_group_fill_sock_diag(tsk->group, skb)) in tipc_sk_fill_sock_diag()
3685 return -EMSGSIZE; in tipc_sk_fill_sock_diag()
3702 hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, in __tipc_nl_add_sk_publ()
3711 if (nla_put_u32(skb, TIPC_NLA_PUBL_KEY, publ->key)) in __tipc_nl_add_sk_publ()
3713 if (nla_put_u32(skb, TIPC_NLA_PUBL_TYPE, publ->type)) in __tipc_nl_add_sk_publ()
3715 if (nla_put_u32(skb, TIPC_NLA_PUBL_LOWER, publ->lower)) in __tipc_nl_add_sk_publ()
3717 if (nla_put_u32(skb, TIPC_NLA_PUBL_UPPER, publ->upper)) in __tipc_nl_add_sk_publ()
3730 return -EMSGSIZE; in __tipc_nl_add_sk_publ()
3742 list_for_each_entry(p, &tsk->publications, binding_sock) { in __tipc_nl_list_sk_publ()
3743 if (p->key == *last_publ) in __tipc_nl_list_sk_publ()
3746 if (p->key != *last_publ) { in __tipc_nl_list_sk_publ()
3753 cb->prev_seq = 1; in __tipc_nl_list_sk_publ()
3755 return -EPIPE; in __tipc_nl_list_sk_publ()
3758 p = list_first_entry(&tsk->publications, struct publication, in __tipc_nl_list_sk_publ()
3762 list_for_each_entry_from(p, &tsk->publications, binding_sock) { in __tipc_nl_list_sk_publ()
3765 *last_publ = p->key; in __tipc_nl_list_sk_publ()
3777 u32 tsk_portid = cb->args[0]; in tipc_nl_publ_dump()
3778 u32 last_publ = cb->args[1]; in tipc_nl_publ_dump()
3779 u32 done = cb->args[2]; in tipc_nl_publ_dump()
3780 struct net *net = sock_net(skb->sk); in tipc_nl_publ_dump()
3784 struct nlattr **attrs = genl_dumpit_info(cb)->attrs; in tipc_nl_publ_dump()
3788 return -EINVAL; in tipc_nl_publ_dump()
3797 return -EINVAL; in tipc_nl_publ_dump()
3807 return -EINVAL; in tipc_nl_publ_dump()
3809 lock_sock(&tsk->sk); in tipc_nl_publ_dump()
3813 release_sock(&tsk->sk); in tipc_nl_publ_dump()
3814 sock_put(&tsk->sk); in tipc_nl_publ_dump()
3816 cb->args[0] = tsk_portid; in tipc_nl_publ_dump()
3817 cb->args[1] = last_publ; in tipc_nl_publ_dump()
3818 cb->args[2] = done; in tipc_nl_publ_dump()
3820 return skb->len; in tipc_nl_publ_dump()
3824 * tipc_sk_filtering - check if a socket should be traced
3830 * (value 0 = 'any') or when there is no tuple set (all = 0),
3855 return (_port == tsk->portid); in tipc_sk_filtering()
3857 if (_sktype && _sktype != sk->sk_type) in tipc_sk_filtering()
3860 if (tsk->published) { in tipc_sk_filtering()
3861 p = list_first_entry_or_null(&tsk->publications, in tipc_sk_filtering()
3864 type = p->type; in tipc_sk_filtering()
3865 lower = p->lower; in tipc_sk_filtering()
3866 upper = p->upper; in tipc_sk_filtering()
3871 type = tsk->conn_type; in tipc_sk_filtering()
3872 lower = tsk->conn_instance; in tipc_sk_filtering()
3873 upper = tsk->conn_instance; in tipc_sk_filtering()
3885 return (sk) ? (tipc_sk(sk))->portid : 0; in tipc_sock_get_portid()
3889 * tipc_sk_overlimit1 - check if socket rx queue is about to be overloaded,
3899 atomic_t *dcnt = &tipc_sk(sk)->dupl_rcvcnt; in tipc_sk_overlimit1()
3901 unsigned int qsize = sk->sk_backlog.len + sk_rmem_alloc_get(sk); in tipc_sk_overlimit1()
3907 * tipc_sk_overlimit2 - check if socket rx queue is about to be overloaded,
3924 * tipc_sk_dump - dump TIPC socket
3927 * - TIPC_DUMP_NONE: don't dump socket queues
3928 * - TIPC_DUMP_SK_SNDQ: dump socket send queue
3929 * - TIPC_DUMP_SK_RCVQ: dump socket rcv queue
3930 * - TIPC_DUMP_SK_BKLGQ: dump socket backlog queue
3931 * - TIPC_DUMP_ALL: dump all the socket queues above
3950 i += scnprintf(buf, sz, "sk data: %u", sk->sk_type); in tipc_sk_dump()
3951 i += scnprintf(buf + i, sz - i, " %d", sk->sk_state); in tipc_sk_dump()
3952 i += scnprintf(buf + i, sz - i, " %x", tsk_own_node(tsk)); in tipc_sk_dump()
3953 i += scnprintf(buf + i, sz - i, " %u", tsk->portid); in tipc_sk_dump()
3954 i += scnprintf(buf + i, sz - i, " | %u", tsk_connected); in tipc_sk_dump()
3956 i += scnprintf(buf + i, sz - i, " %x", tsk_peer_node(tsk)); in tipc_sk_dump()
3957 i += scnprintf(buf + i, sz - i, " %u", tsk_peer_port(tsk)); in tipc_sk_dump()
3958 i += scnprintf(buf + i, sz - i, " %u", tsk->conn_type); in tipc_sk_dump()
3959 i += scnprintf(buf + i, sz - i, " %u", tsk->conn_instance); in tipc_sk_dump()
3961 i += scnprintf(buf + i, sz - i, " | %u", tsk->published); in tipc_sk_dump()
3962 if (tsk->published) { in tipc_sk_dump()
3963 p = list_first_entry_or_null(&tsk->publications, in tipc_sk_dump()
3965 i += scnprintf(buf + i, sz - i, " %u", (p) ? p->type : 0); in tipc_sk_dump()
3966 i += scnprintf(buf + i, sz - i, " %u", (p) ? p->lower : 0); in tipc_sk_dump()
3967 i += scnprintf(buf + i, sz - i, " %u", (p) ? p->upper : 0); in tipc_sk_dump()
3969 i += scnprintf(buf + i, sz - i, " | %u", tsk->snd_win); in tipc_sk_dump()
3970 i += scnprintf(buf + i, sz - i, " %u", tsk->rcv_win); in tipc_sk_dump()
3971 i += scnprintf(buf + i, sz - i, " %u", tsk->max_pkt); in tipc_sk_dump()
3972 i += scnprintf(buf + i, sz - i, " %x", tsk->peer_caps); in tipc_sk_dump()
3973 i += scnprintf(buf + i, sz - i, " %u", tsk->cong_link_cnt); in tipc_sk_dump()
3974 i += scnprintf(buf + i, sz - i, " %u", tsk->snt_unacked); in tipc_sk_dump()
3975 i += scnprintf(buf + i, sz - i, " %u", tsk->rcv_unacked); in tipc_sk_dump()
3976 i += scnprintf(buf + i, sz - i, " %u", atomic_read(&tsk->dupl_rcvcnt)); in tipc_sk_dump()
3977 i += scnprintf(buf + i, sz - i, " %u", sk->sk_shutdown); in tipc_sk_dump()
3978 i += scnprintf(buf + i, sz - i, " | %d", sk_wmem_alloc_get(sk)); in tipc_sk_dump()
3979 i += scnprintf(buf + i, sz - i, " %d", sk->sk_sndbuf); in tipc_sk_dump()
3980 i += scnprintf(buf + i, sz - i, " | %d", sk_rmem_alloc_get(sk)); in tipc_sk_dump()
3981 i += scnprintf(buf + i, sz - i, " %d", sk->sk_rcvbuf); in tipc_sk_dump()
3982 i += scnprintf(buf + i, sz - i, " | %d\n", READ_ONCE(sk->sk_backlog.len)); in tipc_sk_dump()
3985 i += scnprintf(buf + i, sz - i, "sk_write_queue: "); in tipc_sk_dump()
3986 i += tipc_list_dump(&sk->sk_write_queue, false, buf + i); in tipc_sk_dump()
3990 i += scnprintf(buf + i, sz - i, "sk_receive_queue: "); in tipc_sk_dump()
3991 i += tipc_list_dump(&sk->sk_receive_queue, false, buf + i); in tipc_sk_dump()
3995 i += scnprintf(buf + i, sz - i, "sk_backlog:\n head "); in tipc_sk_dump()
3996 i += tipc_skb_dump(sk->sk_backlog.head, false, buf + i); in tipc_sk_dump()
3997 if (sk->sk_backlog.tail != sk->sk_backlog.head) { in tipc_sk_dump()
3998 i += scnprintf(buf + i, sz - i, " tail "); in tipc_sk_dump()
3999 i += tipc_skb_dump(sk->sk_backlog.tail, false, in tipc_sk_dump()