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authorPaul Mundt <lethal@linux-sh.org>2011-01-13 01:06:28 -0500
committerPaul Mundt <lethal@linux-sh.org>2011-01-13 01:06:28 -0500
commitf43dc23d5ea91fca257be02138a255f02d98e806 (patch)
treeb29722f6e965316e90ac97abf79923ced250dc21 /net/tipc/socket.c
parentf8e53553f452dcbf67cb89c8cba63a1cd6eb4cc0 (diff)
parent4162cf64973df51fc885825bc9ca4d055891c49f (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 into common/serial-rework
Conflicts: arch/sh/kernel/cpu/sh2/setup-sh7619.c arch/sh/kernel/cpu/sh2a/setup-mxg.c arch/sh/kernel/cpu/sh2a/setup-sh7201.c arch/sh/kernel/cpu/sh2a/setup-sh7203.c arch/sh/kernel/cpu/sh2a/setup-sh7206.c arch/sh/kernel/cpu/sh3/setup-sh7705.c arch/sh/kernel/cpu/sh3/setup-sh770x.c arch/sh/kernel/cpu/sh3/setup-sh7710.c arch/sh/kernel/cpu/sh3/setup-sh7720.c arch/sh/kernel/cpu/sh4/setup-sh4-202.c arch/sh/kernel/cpu/sh4/setup-sh7750.c arch/sh/kernel/cpu/sh4/setup-sh7760.c arch/sh/kernel/cpu/sh4a/setup-sh7343.c arch/sh/kernel/cpu/sh4a/setup-sh7366.c arch/sh/kernel/cpu/sh4a/setup-sh7722.c arch/sh/kernel/cpu/sh4a/setup-sh7723.c arch/sh/kernel/cpu/sh4a/setup-sh7724.c arch/sh/kernel/cpu/sh4a/setup-sh7763.c arch/sh/kernel/cpu/sh4a/setup-sh7770.c arch/sh/kernel/cpu/sh4a/setup-sh7780.c arch/sh/kernel/cpu/sh4a/setup-sh7785.c arch/sh/kernel/cpu/sh4a/setup-sh7786.c arch/sh/kernel/cpu/sh4a/setup-shx3.c arch/sh/kernel/cpu/sh5/setup-sh5.c drivers/serial/sh-sci.c drivers/serial/sh-sci.h include/linux/serial_sci.h
Diffstat (limited to 'net/tipc/socket.c')
-rw-r--r--net/tipc/socket.c293
1 files changed, 147 insertions, 146 deletions
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 1848693ebb82..2b02a3a80313 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -34,25 +34,13 @@
34 * POSSIBILITY OF SUCH DAMAGE. 34 * POSSIBILITY OF SUCH DAMAGE.
35 */ 35 */
36 36
37#include <linux/module.h>
38#include <linux/types.h>
39#include <linux/net.h>
40#include <linux/socket.h>
41#include <linux/errno.h>
42#include <linux/mm.h>
43#include <linux/slab.h>
44#include <linux/poll.h>
45#include <linux/fcntl.h>
46#include <asm/string.h>
47#include <asm/atomic.h>
48#include <net/sock.h> 37#include <net/sock.h>
49 38
50#include <linux/tipc.h> 39#include <linux/tipc.h>
51#include <linux/tipc_config.h> 40#include <linux/tipc_config.h>
52#include <net/tipc/tipc_msg.h>
53#include <net/tipc/tipc_port.h>
54 41
55#include "core.h" 42#include "core.h"
43#include "port.h"
56 44
57#define SS_LISTENING -1 /* socket is listening */ 45#define SS_LISTENING -1 /* socket is listening */
58#define SS_READY -2 /* socket is connectionless */ 46#define SS_READY -2 /* socket is connectionless */
@@ -64,6 +52,7 @@ struct tipc_sock {
64 struct sock sk; 52 struct sock sk;
65 struct tipc_port *p; 53 struct tipc_port *p;
66 struct tipc_portid peer_name; 54 struct tipc_portid peer_name;
55 long conn_timeout;
67}; 56};
68 57
69#define tipc_sk(sk) ((struct tipc_sock *)(sk)) 58#define tipc_sk(sk) ((struct tipc_sock *)(sk))
@@ -79,7 +68,7 @@ static const struct proto_ops msg_ops;
79 68
80static struct proto tipc_proto; 69static struct proto tipc_proto;
81 70
82static int sockets_enabled = 0; 71static int sockets_enabled;
83 72
84static atomic_t tipc_queue_size = ATOMIC_INIT(0); 73static atomic_t tipc_queue_size = ATOMIC_INIT(0);
85 74
@@ -177,6 +166,7 @@ static void reject_rx_queue(struct sock *sk)
177 * @net: network namespace (must be default network) 166 * @net: network namespace (must be default network)
178 * @sock: pre-allocated socket structure 167 * @sock: pre-allocated socket structure
179 * @protocol: protocol indicator (must be 0) 168 * @protocol: protocol indicator (must be 0)
169 * @kern: caused by kernel or by userspace?
180 * 170 *
181 * This routine creates additional data structures used by the TIPC socket, 171 * This routine creates additional data structures used by the TIPC socket,
182 * initializes them, and links them together. 172 * initializes them, and links them together.
@@ -184,7 +174,8 @@ static void reject_rx_queue(struct sock *sk)
184 * Returns 0 on success, errno otherwise 174 * Returns 0 on success, errno otherwise
185 */ 175 */
186 176
187static int tipc_create(struct net *net, struct socket *sock, int protocol) 177static int tipc_create(struct net *net, struct socket *sock, int protocol,
178 int kern)
188{ 179{
189 const struct proto_ops *ops; 180 const struct proto_ops *ops;
190 socket_state state; 181 socket_state state;
@@ -193,7 +184,7 @@ static int tipc_create(struct net *net, struct socket *sock, int protocol)
193 184
194 /* Validate arguments */ 185 /* Validate arguments */
195 186
196 if (net != &init_net) 187 if (!net_eq(net, &init_net))
197 return -EAFNOSUPPORT; 188 return -EAFNOSUPPORT;
198 189
199 if (unlikely(protocol != 0)) 190 if (unlikely(protocol != 0))
@@ -238,9 +229,9 @@ static int tipc_create(struct net *net, struct socket *sock, int protocol)
238 sock->state = state; 229 sock->state = state;
239 230
240 sock_init_data(sock, sk); 231 sock_init_data(sock, sk);
241 sk->sk_rcvtimeo = msecs_to_jiffies(CONN_TIMEOUT_DEFAULT);
242 sk->sk_backlog_rcv = backlog_rcv; 232 sk->sk_backlog_rcv = backlog_rcv;
243 tipc_sk(sk)->p = tp_ptr; 233 tipc_sk(sk)->p = tp_ptr;
234 tipc_sk(sk)->conn_timeout = msecs_to_jiffies(CONN_TIMEOUT_DEFAULT);
244 235
245 spin_unlock_bh(tp_ptr->lock); 236 spin_unlock_bh(tp_ptr->lock);
246 237
@@ -384,7 +375,7 @@ static int bind(struct socket *sock, struct sockaddr *uaddr, int uaddr_len)
384 * 375 *
385 * NOTE: This routine doesn't need to take the socket lock since it only 376 * NOTE: This routine doesn't need to take the socket lock since it only
386 * accesses socket information that is unchanging (or which changes in 377 * accesses socket information that is unchanging (or which changes in
387 * a completely predictable manner). 378 * a completely predictable manner).
388 */ 379 */
389 380
390static int get_name(struct socket *sock, struct sockaddr *uaddr, 381static int get_name(struct socket *sock, struct sockaddr *uaddr,
@@ -393,6 +384,7 @@ static int get_name(struct socket *sock, struct sockaddr *uaddr,
393 struct sockaddr_tipc *addr = (struct sockaddr_tipc *)uaddr; 384 struct sockaddr_tipc *addr = (struct sockaddr_tipc *)uaddr;
394 struct tipc_sock *tsock = tipc_sk(sock->sk); 385 struct tipc_sock *tsock = tipc_sk(sock->sk);
395 386
387 memset(addr, 0, sizeof(*addr));
396 if (peer) { 388 if (peer) {
397 if ((sock->state != SS_CONNECTED) && 389 if ((sock->state != SS_CONNECTED) &&
398 ((peer != 2) || (sock->state != SS_DISCONNECTING))) 390 ((peer != 2) || (sock->state != SS_DISCONNECTING)))
@@ -400,7 +392,8 @@ static int get_name(struct socket *sock, struct sockaddr *uaddr,
400 addr->addr.id.ref = tsock->peer_name.ref; 392 addr->addr.id.ref = tsock->peer_name.ref;
401 addr->addr.id.node = tsock->peer_name.node; 393 addr->addr.id.node = tsock->peer_name.node;
402 } else { 394 } else {
403 tipc_ownidentity(tsock->p->ref, &addr->addr.id); 395 addr->addr.id.ref = tsock->p->ref;
396 addr->addr.id.node = tipc_own_addr;
404 } 397 }
405 398
406 *uaddr_len = sizeof(*addr); 399 *uaddr_len = sizeof(*addr);
@@ -427,36 +420,55 @@ static int get_name(struct socket *sock, struct sockaddr *uaddr,
427 * to handle any preventable race conditions, so TIPC will do the same ... 420 * to handle any preventable race conditions, so TIPC will do the same ...
428 * 421 *
429 * TIPC sets the returned events as follows: 422 * TIPC sets the returned events as follows:
430 * a) POLLRDNORM and POLLIN are set if the socket's receive queue is non-empty 423 *
431 * or if a connection-oriented socket is does not have an active connection 424 * socket state flags set
432 * (i.e. a read operation will not block). 425 * ------------ ---------
433 * b) POLLOUT is set except when a socket's connection has been terminated 426 * unconnected no read flags
434 * (i.e. a write operation will not block). 427 * no write flags
435 * c) POLLHUP is set when a socket's connection has been terminated. 428 *
436 * 429 * connecting POLLIN/POLLRDNORM if ACK/NACK in rx queue
437 * IMPORTANT: The fact that a read or write operation will not block does NOT 430 * no write flags
438 * imply that the operation will succeed! 431 *
432 * connected POLLIN/POLLRDNORM if data in rx queue
433 * POLLOUT if port is not congested
434 *
435 * disconnecting POLLIN/POLLRDNORM/POLLHUP
436 * no write flags
437 *
438 * listening POLLIN if SYN in rx queue
439 * no write flags
440 *
441 * ready POLLIN/POLLRDNORM if data in rx queue
442 * [connectionless] POLLOUT (since port cannot be congested)
443 *
444 * IMPORTANT: The fact that a read or write operation is indicated does NOT
445 * imply that the operation will succeed, merely that it should be performed
446 * and will not block.
439 */ 447 */
440 448
441static unsigned int poll(struct file *file, struct socket *sock, 449static unsigned int poll(struct file *file, struct socket *sock,
442 poll_table *wait) 450 poll_table *wait)
443{ 451{
444 struct sock *sk = sock->sk; 452 struct sock *sk = sock->sk;
445 u32 mask; 453 u32 mask = 0;
446 454
447 poll_wait(file, sk->sk_sleep, wait); 455 poll_wait(file, sk_sleep(sk), wait);
448
449 if (!skb_queue_empty(&sk->sk_receive_queue) ||
450 (sock->state == SS_UNCONNECTED) ||
451 (sock->state == SS_DISCONNECTING))
452 mask = (POLLRDNORM | POLLIN);
453 else
454 mask = 0;
455 456
456 if (sock->state == SS_DISCONNECTING) 457 switch ((int)sock->state) {
457 mask |= POLLHUP; 458 case SS_READY:
458 else 459 case SS_CONNECTED:
459 mask |= POLLOUT; 460 if (!tipc_sk_port(sk)->congested)
461 mask |= POLLOUT;
462 /* fall thru' */
463 case SS_CONNECTING:
464 case SS_LISTENING:
465 if (!skb_queue_empty(&sk->sk_receive_queue))
466 mask |= (POLLIN | POLLRDNORM);
467 break;
468 case SS_DISCONNECTING:
469 mask = (POLLIN | POLLRDNORM | POLLHUP);
470 break;
471 }
460 472
461 return mask; 473 return mask;
462} 474}
@@ -551,37 +563,35 @@ static int send_msg(struct kiocb *iocb, struct socket *sock,
551 563
552 do { 564 do {
553 if (dest->addrtype == TIPC_ADDR_NAME) { 565 if (dest->addrtype == TIPC_ADDR_NAME) {
554 if ((res = dest_name_check(dest, m))) 566 res = dest_name_check(dest, m);
567 if (res)
555 break; 568 break;
556 res = tipc_send2name(tport->ref, 569 res = tipc_send2name(tport->ref,
557 &dest->addr.name.name, 570 &dest->addr.name.name,
558 dest->addr.name.domain, 571 dest->addr.name.domain,
559 m->msg_iovlen, 572 m->msg_iovlen,
560 m->msg_iov); 573 m->msg_iov);
561 } 574 } else if (dest->addrtype == TIPC_ADDR_ID) {
562 else if (dest->addrtype == TIPC_ADDR_ID) {
563 res = tipc_send2port(tport->ref, 575 res = tipc_send2port(tport->ref,
564 &dest->addr.id, 576 &dest->addr.id,
565 m->msg_iovlen, 577 m->msg_iovlen,
566 m->msg_iov); 578 m->msg_iov);
567 } 579 } else if (dest->addrtype == TIPC_ADDR_MCAST) {
568 else if (dest->addrtype == TIPC_ADDR_MCAST) {
569 if (needs_conn) { 580 if (needs_conn) {
570 res = -EOPNOTSUPP; 581 res = -EOPNOTSUPP;
571 break; 582 break;
572 } 583 }
573 if ((res = dest_name_check(dest, m))) 584 res = dest_name_check(dest, m);
585 if (res)
574 break; 586 break;
575 res = tipc_multicast(tport->ref, 587 res = tipc_multicast(tport->ref,
576 &dest->addr.nameseq, 588 &dest->addr.nameseq,
577 0,
578 m->msg_iovlen, 589 m->msg_iovlen,
579 m->msg_iov); 590 m->msg_iov);
580 } 591 }
581 if (likely(res != -ELINKCONG)) { 592 if (likely(res != -ELINKCONG)) {
582 if (needs_conn && (res >= 0)) { 593 if (needs_conn && (res >= 0))
583 sock->state = SS_CONNECTING; 594 sock->state = SS_CONNECTING;
584 }
585 break; 595 break;
586 } 596 }
587 if (m->msg_flags & MSG_DONTWAIT) { 597 if (m->msg_flags & MSG_DONTWAIT) {
@@ -589,7 +599,7 @@ static int send_msg(struct kiocb *iocb, struct socket *sock,
589 break; 599 break;
590 } 600 }
591 release_sock(sk); 601 release_sock(sk);
592 res = wait_event_interruptible(*sk->sk_sleep, 602 res = wait_event_interruptible(*sk_sleep(sk),
593 !tport->congested); 603 !tport->congested);
594 lock_sock(sk); 604 lock_sock(sk);
595 if (res) 605 if (res)
@@ -640,15 +650,14 @@ static int send_packet(struct kiocb *iocb, struct socket *sock,
640 } 650 }
641 651
642 res = tipc_send(tport->ref, m->msg_iovlen, m->msg_iov); 652 res = tipc_send(tport->ref, m->msg_iovlen, m->msg_iov);
643 if (likely(res != -ELINKCONG)) { 653 if (likely(res != -ELINKCONG))
644 break; 654 break;
645 }
646 if (m->msg_flags & MSG_DONTWAIT) { 655 if (m->msg_flags & MSG_DONTWAIT) {
647 res = -EWOULDBLOCK; 656 res = -EWOULDBLOCK;
648 break; 657 break;
649 } 658 }
650 release_sock(sk); 659 release_sock(sk);
651 res = wait_event_interruptible(*sk->sk_sleep, 660 res = wait_event_interruptible(*sk_sleep(sk),
652 (!tport->congested || !tport->connected)); 661 (!tport->congested || !tport->connected));
653 lock_sock(sk); 662 lock_sock(sk);
654 if (res) 663 if (res)
@@ -741,7 +750,8 @@ static int send_stream(struct kiocb *iocb, struct socket *sock,
741 bytes_to_send = curr_left; 750 bytes_to_send = curr_left;
742 my_iov.iov_base = curr_start; 751 my_iov.iov_base = curr_start;
743 my_iov.iov_len = bytes_to_send; 752 my_iov.iov_len = bytes_to_send;
744 if ((res = send_packet(NULL, sock, &my_msg, 0)) < 0) { 753 res = send_packet(NULL, sock, &my_msg, 0);
754 if (res < 0) {
745 if (bytes_sent) 755 if (bytes_sent)
746 res = bytes_sent; 756 res = bytes_sent;
747 goto exit; 757 goto exit;
@@ -801,8 +811,8 @@ static void set_orig_addr(struct msghdr *m, struct tipc_msg *msg)
801 addr->addrtype = TIPC_ADDR_ID; 811 addr->addrtype = TIPC_ADDR_ID;
802 addr->addr.id.ref = msg_origport(msg); 812 addr->addr.id.ref = msg_origport(msg);
803 addr->addr.id.node = msg_orignode(msg); 813 addr->addr.id.node = msg_orignode(msg);
804 addr->addr.name.domain = 0; /* could leave uninitialized */ 814 addr->addr.name.domain = 0; /* could leave uninitialized */
805 addr->scope = 0; /* could leave uninitialized */ 815 addr->scope = 0; /* could leave uninitialized */
806 m->msg_namelen = sizeof(struct sockaddr_tipc); 816 m->msg_namelen = sizeof(struct sockaddr_tipc);
807 } 817 }
808} 818}
@@ -836,12 +846,15 @@ static int anc_data_recv(struct msghdr *m, struct tipc_msg *msg,
836 if (unlikely(err)) { 846 if (unlikely(err)) {
837 anc_data[0] = err; 847 anc_data[0] = err;
838 anc_data[1] = msg_data_sz(msg); 848 anc_data[1] = msg_data_sz(msg);
839 if ((res = put_cmsg(m, SOL_TIPC, TIPC_ERRINFO, 8, anc_data))) 849 res = put_cmsg(m, SOL_TIPC, TIPC_ERRINFO, 8, anc_data);
840 return res; 850 if (res)
841 if (anc_data[1] &&
842 (res = put_cmsg(m, SOL_TIPC, TIPC_RETDATA, anc_data[1],
843 msg_data(msg))))
844 return res; 851 return res;
852 if (anc_data[1]) {
853 res = put_cmsg(m, SOL_TIPC, TIPC_RETDATA, anc_data[1],
854 msg_data(msg));
855 if (res)
856 return res;
857 }
845 } 858 }
846 859
847 /* Optionally capture message destination object */ 860 /* Optionally capture message destination object */
@@ -869,9 +882,11 @@ static int anc_data_recv(struct msghdr *m, struct tipc_msg *msg,
869 default: 882 default:
870 has_name = 0; 883 has_name = 0;
871 } 884 }
872 if (has_name && 885 if (has_name) {
873 (res = put_cmsg(m, SOL_TIPC, TIPC_DESTNAME, 12, anc_data))) 886 res = put_cmsg(m, SOL_TIPC, TIPC_DESTNAME, 12, anc_data);
874 return res; 887 if (res)
888 return res;
889 }
875 890
876 return 0; 891 return 0;
877} 892}
@@ -929,7 +944,7 @@ restart:
929 goto exit; 944 goto exit;
930 } 945 }
931 release_sock(sk); 946 release_sock(sk);
932 res = wait_event_interruptible(*sk->sk_sleep, 947 res = wait_event_interruptible(*sk_sleep(sk),
933 (!skb_queue_empty(&sk->sk_receive_queue) || 948 (!skb_queue_empty(&sk->sk_receive_queue) ||
934 (sock->state == SS_DISCONNECTING))); 949 (sock->state == SS_DISCONNECTING)));
935 lock_sock(sk); 950 lock_sock(sk);
@@ -1024,9 +1039,8 @@ static int recv_stream(struct kiocb *iocb, struct socket *sock,
1024 struct sk_buff *buf; 1039 struct sk_buff *buf;
1025 struct tipc_msg *msg; 1040 struct tipc_msg *msg;
1026 unsigned int sz; 1041 unsigned int sz;
1027 int sz_to_copy; 1042 int sz_to_copy, target, needed;
1028 int sz_copied = 0; 1043 int sz_copied = 0;
1029 int needed;
1030 char __user *crs = m->msg_iov->iov_base; 1044 char __user *crs = m->msg_iov->iov_base;
1031 unsigned char *buf_crs; 1045 unsigned char *buf_crs;
1032 u32 err; 1046 u32 err;
@@ -1048,6 +1062,8 @@ static int recv_stream(struct kiocb *iocb, struct socket *sock,
1048 goto exit; 1062 goto exit;
1049 } 1063 }
1050 1064
1065 target = sock_rcvlowat(sk, flags & MSG_WAITALL, buf_len);
1066
1051restart: 1067restart:
1052 1068
1053 /* Look for a message in receive queue; wait if necessary */ 1069 /* Look for a message in receive queue; wait if necessary */
@@ -1062,7 +1078,7 @@ restart:
1062 goto exit; 1078 goto exit;
1063 } 1079 }
1064 release_sock(sk); 1080 release_sock(sk);
1065 res = wait_event_interruptible(*sk->sk_sleep, 1081 res = wait_event_interruptible(*sk_sleep(sk),
1066 (!skb_queue_empty(&sk->sk_receive_queue) || 1082 (!skb_queue_empty(&sk->sk_receive_queue) ||
1067 (sock->state == SS_DISCONNECTING))); 1083 (sock->state == SS_DISCONNECTING)));
1068 lock_sock(sk); 1084 lock_sock(sk);
@@ -1134,13 +1150,11 @@ restart:
1134 1150
1135 /* Loop around if more data is required */ 1151 /* Loop around if more data is required */
1136 1152
1137 if ((sz_copied < buf_len) /* didn't get all requested data */ 1153 if ((sz_copied < buf_len) && /* didn't get all requested data */
1138 && (!skb_queue_empty(&sk->sk_receive_queue) || 1154 (!skb_queue_empty(&sk->sk_receive_queue) ||
1139 (flags & MSG_WAITALL)) 1155 (sz_copied < target)) && /* and more is ready or required */
1140 /* ... and more is ready or required */ 1156 (!(flags & MSG_PEEK)) && /* and aren't just peeking at data */
1141 && (!(flags & MSG_PEEK)) /* ... and aren't just peeking at data */ 1157 (!err)) /* and haven't reached a FIN */
1142 && (!err) /* ... and haven't reached a FIN */
1143 )
1144 goto restart; 1158 goto restart;
1145 1159
1146exit: 1160exit:
@@ -1174,7 +1188,7 @@ static int rx_queue_full(struct tipc_msg *msg, u32 queue_size, u32 base)
1174 if (msg_connected(msg)) 1188 if (msg_connected(msg))
1175 threshold *= 4; 1189 threshold *= 4;
1176 1190
1177 return (queue_size >= threshold); 1191 return queue_size >= threshold;
1178} 1192}
1179 1193
1180/** 1194/**
@@ -1205,42 +1219,25 @@ static u32 filter_rcv(struct sock *sk, struct sk_buff *buf)
1205 */ 1219 */
1206 1220
1207 if (sock->state == SS_READY) { 1221 if (sock->state == SS_READY) {
1208 if (msg_connected(msg)) { 1222 if (msg_connected(msg))
1209 msg_dbg(msg, "dispatch filter 1\n");
1210 return TIPC_ERR_NO_PORT; 1223 return TIPC_ERR_NO_PORT;
1211 }
1212 } else { 1224 } else {
1213 if (msg_mcast(msg)) { 1225 if (msg_mcast(msg))
1214 msg_dbg(msg, "dispatch filter 2\n");
1215 return TIPC_ERR_NO_PORT; 1226 return TIPC_ERR_NO_PORT;
1216 }
1217 if (sock->state == SS_CONNECTED) { 1227 if (sock->state == SS_CONNECTED) {
1218 if (!msg_connected(msg)) { 1228 if (!msg_connected(msg))
1219 msg_dbg(msg, "dispatch filter 3\n");
1220 return TIPC_ERR_NO_PORT; 1229 return TIPC_ERR_NO_PORT;
1221 } 1230 } else if (sock->state == SS_CONNECTING) {
1222 } 1231 if (!msg_connected(msg) && (msg_errcode(msg) == 0))
1223 else if (sock->state == SS_CONNECTING) {
1224 if (!msg_connected(msg) && (msg_errcode(msg) == 0)) {
1225 msg_dbg(msg, "dispatch filter 4\n");
1226 return TIPC_ERR_NO_PORT; 1232 return TIPC_ERR_NO_PORT;
1227 } 1233 } else if (sock->state == SS_LISTENING) {
1228 } 1234 if (msg_connected(msg) || msg_errcode(msg))
1229 else if (sock->state == SS_LISTENING) {
1230 if (msg_connected(msg) || msg_errcode(msg)) {
1231 msg_dbg(msg, "dispatch filter 5\n");
1232 return TIPC_ERR_NO_PORT; 1235 return TIPC_ERR_NO_PORT;
1233 } 1236 } else if (sock->state == SS_DISCONNECTING) {
1234 }
1235 else if (sock->state == SS_DISCONNECTING) {
1236 msg_dbg(msg, "dispatch filter 6\n");
1237 return TIPC_ERR_NO_PORT; 1237 return TIPC_ERR_NO_PORT;
1238 } 1238 } else /* (sock->state == SS_UNCONNECTED) */ {
1239 else /* (sock->state == SS_UNCONNECTED) */ { 1239 if (msg_connected(msg) || msg_errcode(msg))
1240 if (msg_connected(msg) || msg_errcode(msg)) {
1241 msg_dbg(msg, "dispatch filter 7\n");
1242 return TIPC_ERR_NO_PORT; 1240 return TIPC_ERR_NO_PORT;
1243 }
1244 } 1241 }
1245 } 1242 }
1246 1243
@@ -1259,7 +1256,6 @@ static u32 filter_rcv(struct sock *sk, struct sk_buff *buf)
1259 1256
1260 /* Enqueue message (finally!) */ 1257 /* Enqueue message (finally!) */
1261 1258
1262 msg_dbg(msg, "<DISP<: ");
1263 TIPC_SKB_CB(buf)->handle = msg_data(msg); 1259 TIPC_SKB_CB(buf)->handle = msg_data(msg);
1264 atomic_inc(&tipc_queue_size); 1260 atomic_inc(&tipc_queue_size);
1265 __skb_queue_tail(&sk->sk_receive_queue, buf); 1261 __skb_queue_tail(&sk->sk_receive_queue, buf);
@@ -1271,8 +1267,8 @@ static u32 filter_rcv(struct sock *sk, struct sk_buff *buf)
1271 tipc_disconnect_port(tipc_sk_port(sk)); 1267 tipc_disconnect_port(tipc_sk_port(sk));
1272 } 1268 }
1273 1269
1274 if (waitqueue_active(sk->sk_sleep)) 1270 if (waitqueue_active(sk_sleep(sk)))
1275 wake_up_interruptible(sk->sk_sleep); 1271 wake_up_interruptible(sk_sleep(sk));
1276 return TIPC_OK; 1272 return TIPC_OK;
1277} 1273}
1278 1274
@@ -1322,8 +1318,10 @@ static u32 dispatch(struct tipc_port *tport, struct sk_buff *buf)
1322 if (!sock_owned_by_user(sk)) { 1318 if (!sock_owned_by_user(sk)) {
1323 res = filter_rcv(sk, buf); 1319 res = filter_rcv(sk, buf);
1324 } else { 1320 } else {
1325 sk_add_backlog(sk, buf); 1321 if (sk_add_backlog(sk, buf))
1326 res = TIPC_OK; 1322 res = TIPC_ERR_OVERLOAD;
1323 else
1324 res = TIPC_OK;
1327 } 1325 }
1328 bh_unlock_sock(sk); 1326 bh_unlock_sock(sk);
1329 1327
@@ -1341,8 +1339,8 @@ static void wakeupdispatch(struct tipc_port *tport)
1341{ 1339{
1342 struct sock *sk = (struct sock *)tport->usr_handle; 1340 struct sock *sk = (struct sock *)tport->usr_handle;
1343 1341
1344 if (waitqueue_active(sk->sk_sleep)) 1342 if (waitqueue_active(sk_sleep(sk)))
1345 wake_up_interruptible(sk->sk_sleep); 1343 wake_up_interruptible(sk_sleep(sk));
1346} 1344}
1347 1345
1348/** 1346/**
@@ -1363,6 +1361,7 @@ static int connect(struct socket *sock, struct sockaddr *dest, int destlen,
1363 struct msghdr m = {NULL,}; 1361 struct msghdr m = {NULL,};
1364 struct sk_buff *buf; 1362 struct sk_buff *buf;
1365 struct tipc_msg *msg; 1363 struct tipc_msg *msg;
1364 long timeout;
1366 int res; 1365 int res;
1367 1366
1368 lock_sock(sk); 1367 lock_sock(sk);
@@ -1377,7 +1376,7 @@ static int connect(struct socket *sock, struct sockaddr *dest, int destlen,
1377 /* For now, TIPC does not support the non-blocking form of connect() */ 1376 /* For now, TIPC does not support the non-blocking form of connect() */
1378 1377
1379 if (flags & O_NONBLOCK) { 1378 if (flags & O_NONBLOCK) {
1380 res = -EWOULDBLOCK; 1379 res = -EOPNOTSUPP;
1381 goto exit; 1380 goto exit;
1382 } 1381 }
1383 1382
@@ -1417,17 +1416,17 @@ static int connect(struct socket *sock, struct sockaddr *dest, int destlen,
1417 m.msg_name = dest; 1416 m.msg_name = dest;
1418 m.msg_namelen = destlen; 1417 m.msg_namelen = destlen;
1419 res = send_msg(NULL, sock, &m, 0); 1418 res = send_msg(NULL, sock, &m, 0);
1420 if (res < 0) { 1419 if (res < 0)
1421 goto exit; 1420 goto exit;
1422 }
1423 1421
1424 /* Wait until an 'ACK' or 'RST' arrives, or a timeout occurs */ 1422 /* Wait until an 'ACK' or 'RST' arrives, or a timeout occurs */
1425 1423
1424 timeout = tipc_sk(sk)->conn_timeout;
1426 release_sock(sk); 1425 release_sock(sk);
1427 res = wait_event_interruptible_timeout(*sk->sk_sleep, 1426 res = wait_event_interruptible_timeout(*sk_sleep(sk),
1428 (!skb_queue_empty(&sk->sk_receive_queue) || 1427 (!skb_queue_empty(&sk->sk_receive_queue) ||
1429 (sock->state != SS_CONNECTING)), 1428 (sock->state != SS_CONNECTING)),
1430 sk->sk_rcvtimeo); 1429 timeout ? timeout : MAX_SCHEDULE_TIMEOUT);
1431 lock_sock(sk); 1430 lock_sock(sk);
1432 1431
1433 if (res > 0) { 1432 if (res > 0) {
@@ -1440,11 +1439,10 @@ static int connect(struct socket *sock, struct sockaddr *dest, int destlen,
1440 advance_rx_queue(sk); 1439 advance_rx_queue(sk);
1441 } 1440 }
1442 } else { 1441 } else {
1443 if (sock->state == SS_CONNECTED) { 1442 if (sock->state == SS_CONNECTED)
1444 res = -EISCONN; 1443 res = -EISCONN;
1445 } else { 1444 else
1446 res = -ECONNREFUSED; 1445 res = -ECONNREFUSED;
1447 }
1448 } 1446 }
1449 } else { 1447 } else {
1450 if (res == 0) 1448 if (res == 0)
@@ -1519,7 +1517,7 @@ static int accept(struct socket *sock, struct socket *new_sock, int flags)
1519 goto exit; 1517 goto exit;
1520 } 1518 }
1521 release_sock(sk); 1519 release_sock(sk);
1522 res = wait_event_interruptible(*sk->sk_sleep, 1520 res = wait_event_interruptible(*sk_sleep(sk),
1523 (!skb_queue_empty(&sk->sk_receive_queue))); 1521 (!skb_queue_empty(&sk->sk_receive_queue)));
1524 lock_sock(sk); 1522 lock_sock(sk);
1525 if (res) 1523 if (res)
@@ -1528,7 +1526,7 @@ static int accept(struct socket *sock, struct socket *new_sock, int flags)
1528 1526
1529 buf = skb_peek(&sk->sk_receive_queue); 1527 buf = skb_peek(&sk->sk_receive_queue);
1530 1528
1531 res = tipc_create(sock_net(sock->sk), new_sock, 0); 1529 res = tipc_create(sock_net(sock->sk), new_sock, 0, 0);
1532 if (!res) { 1530 if (!res) {
1533 struct sock *new_sk = new_sock->sk; 1531 struct sock *new_sk = new_sock->sk;
1534 struct tipc_sock *new_tsock = tipc_sk(new_sk); 1532 struct tipc_sock *new_tsock = tipc_sk(new_sk);
@@ -1563,7 +1561,6 @@ static int accept(struct socket *sock, struct socket *new_sock, int flags)
1563 * Respond to 'SYN+' by queuing it on new socket. 1561 * Respond to 'SYN+' by queuing it on new socket.
1564 */ 1562 */
1565 1563
1566 msg_dbg(msg,"<ACC<: ");
1567 if (!msg_data_sz(msg)) { 1564 if (!msg_data_sz(msg)) {
1568 struct msghdr m = {NULL,}; 1565 struct msghdr m = {NULL,};
1569 1566
@@ -1630,8 +1627,8 @@ restart:
1630 /* Discard any unreceived messages; wake up sleeping tasks */ 1627 /* Discard any unreceived messages; wake up sleeping tasks */
1631 1628
1632 discard_rx_queue(sk); 1629 discard_rx_queue(sk);
1633 if (waitqueue_active(sk->sk_sleep)) 1630 if (waitqueue_active(sk_sleep(sk)))
1634 wake_up_interruptible(sk->sk_sleep); 1631 wake_up_interruptible(sk_sleep(sk));
1635 res = 0; 1632 res = 0;
1636 break; 1633 break;
1637 1634
@@ -1658,7 +1655,7 @@ restart:
1658 */ 1655 */
1659 1656
1660static int setsockopt(struct socket *sock, 1657static int setsockopt(struct socket *sock,
1661 int lvl, int opt, char __user *ov, int ol) 1658 int lvl, int opt, char __user *ov, unsigned int ol)
1662{ 1659{
1663 struct sock *sk = sock->sk; 1660 struct sock *sk = sock->sk;
1664 struct tipc_port *tport = tipc_sk_port(sk); 1661 struct tipc_port *tport = tipc_sk_port(sk);
@@ -1671,7 +1668,8 @@ static int setsockopt(struct socket *sock,
1671 return -ENOPROTOOPT; 1668 return -ENOPROTOOPT;
1672 if (ol < sizeof(value)) 1669 if (ol < sizeof(value))
1673 return -EINVAL; 1670 return -EINVAL;
1674 if ((res = get_user(value, (u32 __user *)ov))) 1671 res = get_user(value, (u32 __user *)ov);
1672 if (res)
1675 return res; 1673 return res;
1676 1674
1677 lock_sock(sk); 1675 lock_sock(sk);
@@ -1690,7 +1688,7 @@ static int setsockopt(struct socket *sock,
1690 res = tipc_set_portunreturnable(tport->ref, value); 1688 res = tipc_set_portunreturnable(tport->ref, value);
1691 break; 1689 break;
1692 case TIPC_CONN_TIMEOUT: 1690 case TIPC_CONN_TIMEOUT:
1693 sk->sk_rcvtimeo = msecs_to_jiffies(value); 1691 tipc_sk(sk)->conn_timeout = msecs_to_jiffies(value);
1694 /* no need to set "res", since already 0 at this point */ 1692 /* no need to set "res", since already 0 at this point */
1695 break; 1693 break;
1696 default: 1694 default:
@@ -1729,7 +1727,8 @@ static int getsockopt(struct socket *sock,
1729 return put_user(0, ol); 1727 return put_user(0, ol);
1730 if (lvl != SOL_TIPC) 1728 if (lvl != SOL_TIPC)
1731 return -ENOPROTOOPT; 1729 return -ENOPROTOOPT;
1732 if ((res = get_user(len, ol))) 1730 res = get_user(len, ol);
1731 if (res)
1733 return res; 1732 return res;
1734 1733
1735 lock_sock(sk); 1734 lock_sock(sk);
@@ -1745,29 +1744,31 @@ static int getsockopt(struct socket *sock,
1745 res = tipc_portunreturnable(tport->ref, &value); 1744 res = tipc_portunreturnable(tport->ref, &value);
1746 break; 1745 break;
1747 case TIPC_CONN_TIMEOUT: 1746 case TIPC_CONN_TIMEOUT:
1748 value = jiffies_to_msecs(sk->sk_rcvtimeo); 1747 value = jiffies_to_msecs(tipc_sk(sk)->conn_timeout);
1749 /* no need to set "res", since already 0 at this point */ 1748 /* no need to set "res", since already 0 at this point */
1750 break; 1749 break;
1750 case TIPC_NODE_RECVQ_DEPTH:
1751 value = (u32)atomic_read(&tipc_queue_size);
1752 break;
1753 case TIPC_SOCK_RECVQ_DEPTH:
1754 value = skb_queue_len(&sk->sk_receive_queue);
1755 break;
1751 default: 1756 default:
1752 res = -EINVAL; 1757 res = -EINVAL;
1753 } 1758 }
1754 1759
1755 release_sock(sk); 1760 release_sock(sk);
1756 1761
1757 if (res) { 1762 if (res)
1758 /* "get" failed */ 1763 return res; /* "get" failed */
1759 }
1760 else if (len < sizeof(value)) {
1761 res = -EINVAL;
1762 }
1763 else if (copy_to_user(ov, &value, sizeof(value))) {
1764 res = -EFAULT;
1765 }
1766 else {
1767 res = put_user(sizeof(value), ol);
1768 }
1769 1764
1770 return res; 1765 if (len < sizeof(value))
1766 return -EINVAL;
1767
1768 if (copy_to_user(ov, &value, sizeof(value)))
1769 return -EFAULT;
1770
1771 return put_user(sizeof(value), ol);
1771} 1772}
1772 1773
1773/** 1774/**
@@ -1775,7 +1776,7 @@ static int getsockopt(struct socket *sock,
1775 */ 1776 */
1776 1777
1777static const struct proto_ops msg_ops = { 1778static const struct proto_ops msg_ops = {
1778 .owner = THIS_MODULE, 1779 .owner = THIS_MODULE,
1779 .family = AF_TIPC, 1780 .family = AF_TIPC,
1780 .release = release, 1781 .release = release,
1781 .bind = bind, 1782 .bind = bind,
@@ -1796,7 +1797,7 @@ static const struct proto_ops msg_ops = {
1796}; 1797};
1797 1798
1798static const struct proto_ops packet_ops = { 1799static const struct proto_ops packet_ops = {
1799 .owner = THIS_MODULE, 1800 .owner = THIS_MODULE,
1800 .family = AF_TIPC, 1801 .family = AF_TIPC,
1801 .release = release, 1802 .release = release,
1802 .bind = bind, 1803 .bind = bind,
@@ -1817,7 +1818,7 @@ static const struct proto_ops packet_ops = {
1817}; 1818};
1818 1819
1819static const struct proto_ops stream_ops = { 1820static const struct proto_ops stream_ops = {
1820 .owner = THIS_MODULE, 1821 .owner = THIS_MODULE,
1821 .family = AF_TIPC, 1822 .family = AF_TIPC,
1822 .release = release, 1823 .release = release,
1823 .bind = bind, 1824 .bind = bind,
@@ -1838,7 +1839,7 @@ static const struct proto_ops stream_ops = {
1838}; 1839};
1839 1840
1840static const struct net_proto_family tipc_family_ops = { 1841static const struct net_proto_family tipc_family_ops = {
1841 .owner = THIS_MODULE, 1842 .owner = THIS_MODULE,
1842 .family = AF_TIPC, 1843 .family = AF_TIPC,
1843 .create = tipc_create 1844 .create = tipc_create
1844}; 1845};