blob: 929b50d5afe843fd6e9e5822b483fd4e451c8013 [file] [log] [blame]
David Howells45025bc2016-08-24 07:30:52 +01001/* RxRPC virtual connection handler, common bits.
David Howells17926a72007-04-26 15:48:28 -07002 *
David Howells45025bc2016-08-24 07:30:52 +01003 * Copyright (C) 2007, 2016 Red Hat, Inc. All Rights Reserved.
David Howells17926a72007-04-26 15:48:28 -07004 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11
Joe Perches9b6d5392016-06-02 12:08:52 -070012#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
13
David Howells17926a72007-04-26 15:48:28 -070014#include <linux/module.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090015#include <linux/slab.h>
David Howells17926a72007-04-26 15:48:28 -070016#include <linux/net.h>
17#include <linux/skbuff.h>
David Howells17926a72007-04-26 15:48:28 -070018#include "ar-internal.h"
19
David Howells5873c082014-02-07 18:58:44 +000020/*
21 * Time till a connection expires after last use (in seconds).
22 */
David Howellsdad8aff2016-03-09 23:22:56 +000023unsigned int rxrpc_connection_expiry = 10 * 60;
David Howells5873c082014-02-07 18:58:44 +000024
David Howells45025bc2016-08-24 07:30:52 +010025static void rxrpc_destroy_connection(struct rcu_head *);
26
David Howells17926a72007-04-26 15:48:28 -070027/*
David Howells17926a72007-04-26 15:48:28 -070028 * allocate a new connection
29 */
David Howellsc6d2b8d2016-04-04 14:00:40 +010030struct rxrpc_connection *rxrpc_alloc_connection(gfp_t gfp)
David Howells17926a72007-04-26 15:48:28 -070031{
32 struct rxrpc_connection *conn;
33
34 _enter("");
35
36 conn = kzalloc(sizeof(struct rxrpc_connection), gfp);
37 if (conn) {
David Howells45025bc2016-08-24 07:30:52 +010038 INIT_LIST_HEAD(&conn->cache_link);
David Howells999b69f2016-06-17 15:42:35 +010039 spin_lock_init(&conn->channel_lock);
David Howells45025bc2016-08-24 07:30:52 +010040 INIT_LIST_HEAD(&conn->waiting_calls);
David Howells17926a72007-04-26 15:48:28 -070041 INIT_WORK(&conn->processor, &rxrpc_process_connection);
David Howells4d028b22016-08-24 07:30:52 +010042 INIT_LIST_HEAD(&conn->proc_link);
David Howells999b69f2016-06-17 15:42:35 +010043 INIT_LIST_HEAD(&conn->link);
David Howells17926a72007-04-26 15:48:28 -070044 skb_queue_head_init(&conn->rx_queue);
David Howellse0e4d822016-04-07 17:23:58 +010045 conn->security = &rxrpc_no_security;
David Howells17926a72007-04-26 15:48:28 -070046 spin_lock_init(&conn->state_lock);
David Howells17926a72007-04-26 15:48:28 -070047 conn->debug_id = atomic_inc_return(&rxrpc_debug_id);
David Howells17926a72007-04-26 15:48:28 -070048 conn->size_align = 4;
David Howellsf51b4482016-08-23 15:27:24 +010049 conn->idle_timestamp = jiffies;
David Howells17926a72007-04-26 15:48:28 -070050 }
51
Adrian Bunk16c61ad2007-06-15 15:15:43 -070052 _leave(" = %p{%d}", conn, conn ? conn->debug_id : 0);
David Howells17926a72007-04-26 15:48:28 -070053 return conn;
54}
55
56/*
David Howells8496af52016-07-01 07:51:50 +010057 * Look up a connection in the cache by protocol parameters.
58 *
59 * If successful, a pointer to the connection is returned, but no ref is taken.
60 * NULL is returned if there is no match.
61 *
62 * The caller must be holding the RCU read lock.
David Howells17926a72007-04-26 15:48:28 -070063 */
David Howells8496af52016-07-01 07:51:50 +010064struct rxrpc_connection *rxrpc_find_connection_rcu(struct rxrpc_local *local,
65 struct sk_buff *skb)
David Howells17926a72007-04-26 15:48:28 -070066{
67 struct rxrpc_connection *conn;
David Howells1291e9d12016-06-30 12:02:53 +010068 struct rxrpc_conn_proto k;
David Howells42886ff2016-06-16 13:31:07 +010069 struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
David Howells1291e9d12016-06-30 12:02:53 +010070 struct sockaddr_rxrpc srx;
71 struct rxrpc_peer *peer;
David Howells17926a72007-04-26 15:48:28 -070072
David Howells8496af52016-07-01 07:51:50 +010073 _enter(",%x", sp->hdr.cid & RXRPC_CIDMASK);
David Howells17926a72007-04-26 15:48:28 -070074
David Howells1291e9d12016-06-30 12:02:53 +010075 if (rxrpc_extract_addr_from_skb(&srx, skb) < 0)
76 goto not_found;
David Howells17926a72007-04-26 15:48:28 -070077
David Howells8496af52016-07-01 07:51:50 +010078 k.epoch = sp->hdr.epoch;
79 k.cid = sp->hdr.cid & RXRPC_CIDMASK;
80
David Howells1291e9d12016-06-30 12:02:53 +010081 /* We may have to handle mixing IPv4 and IPv6 */
82 if (srx.transport.family != local->srx.transport.family) {
83 pr_warn_ratelimited("AF_RXRPC: Protocol mismatch %u not %u\n",
84 srx.transport.family,
85 local->srx.transport.family);
86 goto not_found;
87 }
88
89 k.epoch = sp->hdr.epoch;
90 k.cid = sp->hdr.cid & RXRPC_CIDMASK;
David Howells17926a72007-04-26 15:48:28 -070091
David Howells4a3388c2016-04-04 14:00:37 +010092 if (sp->hdr.flags & RXRPC_CLIENT_INITIATED) {
David Howells1291e9d12016-06-30 12:02:53 +010093 /* We need to look up service connections by the full protocol
94 * parameter set. We look up the peer first as an intermediate
95 * step and then the connection from the peer's tree.
96 */
97 peer = rxrpc_lookup_peer_rcu(local, &srx);
98 if (!peer)
99 goto not_found;
David Howells8496af52016-07-01 07:51:50 +0100100 conn = rxrpc_find_service_conn_rcu(peer, skb);
101 if (!conn || atomic_read(&conn->usage) == 0)
102 goto not_found;
103 _leave(" = %p", conn);
104 return conn;
David Howells4a3388c2016-04-04 14:00:37 +0100105 } else {
David Howells8496af52016-07-01 07:51:50 +0100106 /* Look up client connections by connection ID alone as their
107 * IDs are unique for this machine.
108 */
David Howells1291e9d12016-06-30 12:02:53 +0100109 conn = idr_find(&rxrpc_client_conn_ids,
David Howells8496af52016-07-01 07:51:50 +0100110 sp->hdr.cid >> RXRPC_CIDSHIFT);
111 if (!conn || atomic_read(&conn->usage) == 0) {
112 _debug("no conn");
113 goto not_found;
114 }
115
116 if (conn->proto.epoch != k.epoch ||
David Howells1291e9d12016-06-30 12:02:53 +0100117 conn->params.local != local)
118 goto not_found;
119
120 peer = conn->params.peer;
121 switch (srx.transport.family) {
122 case AF_INET:
123 if (peer->srx.transport.sin.sin_port !=
124 srx.transport.sin.sin_port ||
125 peer->srx.transport.sin.sin_addr.s_addr !=
126 srx.transport.sin.sin_addr.s_addr)
127 goto not_found;
128 break;
David Howellsd1912742016-09-17 07:26:01 +0100129#ifdef CONFIG_AF_RXRPC_IPV6
David Howells75b54cb2016-09-13 08:49:05 +0100130 case AF_INET6:
131 if (peer->srx.transport.sin6.sin6_port !=
132 srx.transport.sin6.sin6_port ||
133 memcmp(&peer->srx.transport.sin6.sin6_addr,
134 &srx.transport.sin6.sin6_addr,
135 sizeof(struct in6_addr)) != 0)
136 goto not_found;
137 break;
David Howellsd1912742016-09-17 07:26:01 +0100138#endif
David Howells1291e9d12016-06-30 12:02:53 +0100139 default:
140 BUG();
141 }
142
David Howells1291e9d12016-06-30 12:02:53 +0100143 _leave(" = %p", conn);
144 return conn;
David Howells17926a72007-04-26 15:48:28 -0700145 }
146
David Howells1291e9d12016-06-30 12:02:53 +0100147not_found:
David Howells17926a72007-04-26 15:48:28 -0700148 _leave(" = NULL");
149 return NULL;
David Howells17926a72007-04-26 15:48:28 -0700150}
151
152/*
David Howells999b69f2016-06-17 15:42:35 +0100153 * Disconnect a call and clear any channel it occupies when that call
David Howellsa1399f82016-06-27 14:39:44 +0100154 * terminates. The caller must hold the channel_lock and must release the
155 * call's ref on the connection.
156 */
David Howells45025bc2016-08-24 07:30:52 +0100157void __rxrpc_disconnect_call(struct rxrpc_connection *conn,
158 struct rxrpc_call *call)
David Howellsa1399f82016-06-27 14:39:44 +0100159{
David Howells01a90a42016-08-23 15:27:24 +0100160 struct rxrpc_channel *chan =
161 &conn->channels[call->cid & RXRPC_CHANNELMASK];
David Howellsa1399f82016-06-27 14:39:44 +0100162
David Howells01a90a42016-08-23 15:27:24 +0100163 _enter("%d,%x", conn->debug_id, call->cid);
David Howellsa1399f82016-06-27 14:39:44 +0100164
165 if (rcu_access_pointer(chan->call) == call) {
166 /* Save the result of the call so that we can repeat it if necessary
167 * through the channel, whilst disposing of the actual call record.
168 */
David Howellsb1d9f7fd2017-01-05 10:38:34 +0000169 trace_rxrpc_disconnect_call(call);
David Howellsf5c17aa2016-08-30 09:49:28 +0100170 if (call->abort_code) {
171 chan->last_abort = call->abort_code;
David Howells18bfeba2016-08-23 15:27:25 +0100172 chan->last_type = RXRPC_PACKET_TYPE_ABORT;
173 } else {
David Howells248f2192016-09-08 11:10:12 +0100174 chan->last_seq = call->rx_hard_ack;
David Howells18bfeba2016-08-23 15:27:25 +0100175 chan->last_type = RXRPC_PACKET_TYPE_ACK;
176 }
177 /* Sync with rxrpc_conn_retransmit(). */
David Howellsa1399f82016-06-27 14:39:44 +0100178 smp_wmb();
179 chan->last_call = chan->call_id;
180 chan->call_id = chan->call_counter;
181
182 rcu_assign_pointer(chan->call, NULL);
David Howellsa1399f82016-06-27 14:39:44 +0100183 }
184
185 _leave("");
186}
187
188/*
189 * Disconnect a call and clear any channel it occupies when that call
David Howells999b69f2016-06-17 15:42:35 +0100190 * terminates.
191 */
192void rxrpc_disconnect_call(struct rxrpc_call *call)
193{
194 struct rxrpc_connection *conn = call->conn;
David Howells999b69f2016-06-17 15:42:35 +0100195
David Howellsf7aec122017-06-14 17:56:50 +0100196 call->peer->cong_cwnd = call->cong_cwnd;
197
David Howells248f2192016-09-08 11:10:12 +0100198 spin_lock_bh(&conn->params.peer->lock);
199 hlist_del_init(&call->error_link);
200 spin_unlock_bh(&conn->params.peer->lock);
201
David Howells45025bc2016-08-24 07:30:52 +0100202 if (rxrpc_is_client_call(call))
203 return rxrpc_disconnect_client_call(call);
204
David Howellse653cfe2016-04-04 14:00:38 +0100205 spin_lock(&conn->channel_lock);
David Howells45025bc2016-08-24 07:30:52 +0100206 __rxrpc_disconnect_call(conn, call);
David Howellse653cfe2016-04-04 14:00:38 +0100207 spin_unlock(&conn->channel_lock);
208
209 call->conn = NULL;
David Howellsf51b4482016-08-23 15:27:24 +0100210 conn->idle_timestamp = jiffies;
David Howellse653cfe2016-04-04 14:00:38 +0100211 rxrpc_put_connection(conn);
David Howells999b69f2016-06-17 15:42:35 +0100212}
213
214/*
David Howells45025bc2016-08-24 07:30:52 +0100215 * Kill off a connection.
216 */
217void rxrpc_kill_connection(struct rxrpc_connection *conn)
218{
David Howells2baec2c2017-05-24 17:02:32 +0100219 struct rxrpc_net *rxnet = conn->params.local->rxnet;
220
David Howells45025bc2016-08-24 07:30:52 +0100221 ASSERT(!rcu_access_pointer(conn->channels[0].call) &&
222 !rcu_access_pointer(conn->channels[1].call) &&
223 !rcu_access_pointer(conn->channels[2].call) &&
224 !rcu_access_pointer(conn->channels[3].call));
225 ASSERT(list_empty(&conn->cache_link));
226
David Howells2baec2c2017-05-24 17:02:32 +0100227 write_lock(&rxnet->conn_lock);
David Howells45025bc2016-08-24 07:30:52 +0100228 list_del_init(&conn->proc_link);
David Howells2baec2c2017-05-24 17:02:32 +0100229 write_unlock(&rxnet->conn_lock);
David Howells45025bc2016-08-24 07:30:52 +0100230
231 /* Drain the Rx queue. Note that even though we've unpublished, an
232 * incoming packet could still be being added to our Rx queue, so we
233 * will need to drain it again in the RCU cleanup handler.
234 */
235 rxrpc_purge_queue(&conn->rx_queue);
236
237 /* Leave final destruction to RCU. The connection processor work item
238 * must carry a ref on the connection to prevent us getting here whilst
239 * it is queued or running.
240 */
241 call_rcu(&conn->rcu, rxrpc_destroy_connection);
242}
243
244/*
David Howells363deea2016-09-17 10:49:14 +0100245 * Queue a connection's work processor, getting a ref to pass to the work
246 * queue.
David Howells17926a72007-04-26 15:48:28 -0700247 */
David Howells363deea2016-09-17 10:49:14 +0100248bool rxrpc_queue_conn(struct rxrpc_connection *conn)
David Howells17926a72007-04-26 15:48:28 -0700249{
David Howells363deea2016-09-17 10:49:14 +0100250 const void *here = __builtin_return_address(0);
251 int n = __atomic_add_unless(&conn->usage, 1, 0);
252 if (n == 0)
253 return false;
254 if (rxrpc_queue_work(&conn->processor))
255 trace_rxrpc_conn(conn, rxrpc_conn_queued, n + 1, here);
256 else
257 rxrpc_put_connection(conn);
258 return true;
259}
260
261/*
262 * Note the re-emergence of a connection.
263 */
264void rxrpc_see_connection(struct rxrpc_connection *conn)
265{
266 const void *here = __builtin_return_address(0);
267 if (conn) {
268 int n = atomic_read(&conn->usage);
269
270 trace_rxrpc_conn(conn, rxrpc_conn_seen, n, here);
271 }
272}
273
274/*
275 * Get a ref on a connection.
276 */
277void rxrpc_get_connection(struct rxrpc_connection *conn)
278{
279 const void *here = __builtin_return_address(0);
280 int n = atomic_inc_return(&conn->usage);
281
282 trace_rxrpc_conn(conn, rxrpc_conn_got, n, here);
283}
284
285/*
286 * Try to get a ref on a connection.
287 */
288struct rxrpc_connection *
289rxrpc_get_connection_maybe(struct rxrpc_connection *conn)
290{
291 const void *here = __builtin_return_address(0);
292
293 if (conn) {
294 int n = __atomic_add_unless(&conn->usage, 1, 0);
295 if (n > 0)
296 trace_rxrpc_conn(conn, rxrpc_conn_got, n + 1, here);
297 else
298 conn = NULL;
299 }
300 return conn;
301}
302
303/*
304 * Release a service connection
305 */
306void rxrpc_put_service_conn(struct rxrpc_connection *conn)
307{
David Howells2baec2c2017-05-24 17:02:32 +0100308 struct rxrpc_net *rxnet;
David Howells363deea2016-09-17 10:49:14 +0100309 const void *here = __builtin_return_address(0);
310 int n;
311
312 n = atomic_dec_return(&conn->usage);
313 trace_rxrpc_conn(conn, rxrpc_conn_put_service, n, here);
314 ASSERTCMP(n, >=, 0);
David Howells2baec2c2017-05-24 17:02:32 +0100315 if (n == 0) {
316 rxnet = conn->params.local->rxnet;
317 rxrpc_queue_delayed_work(&rxnet->service_conn_reaper, 0);
318 }
David Howells17926a72007-04-26 15:48:28 -0700319}
320
321/*
322 * destroy a virtual connection
323 */
David Howellsdee46362016-06-27 17:11:19 +0100324static void rxrpc_destroy_connection(struct rcu_head *rcu)
David Howells17926a72007-04-26 15:48:28 -0700325{
David Howellsdee46362016-06-27 17:11:19 +0100326 struct rxrpc_connection *conn =
327 container_of(rcu, struct rxrpc_connection, rcu);
328
329 _enter("{%d,u=%d}", conn->debug_id, atomic_read(&conn->usage));
David Howells17926a72007-04-26 15:48:28 -0700330
331 ASSERTCMP(atomic_read(&conn->usage), ==, 0);
332
333 _net("DESTROY CONN %d", conn->debug_id);
334
David Howells17926a72007-04-26 15:48:28 -0700335 rxrpc_purge_queue(&conn->rx_queue);
336
David Howellse0e4d822016-04-07 17:23:58 +0100337 conn->security->clear(conn);
David Howells19ffa012016-04-04 14:00:36 +0100338 key_put(conn->params.key);
David Howellse0e4d822016-04-07 17:23:58 +0100339 key_put(conn->server_key);
David Howellsaa390bb2016-06-17 10:06:56 +0100340 rxrpc_put_peer(conn->params.peer);
341 rxrpc_put_local(conn->params.local);
David Howellse0e4d822016-04-07 17:23:58 +0100342
David Howells17926a72007-04-26 15:48:28 -0700343 kfree(conn);
344 _leave("");
345}
346
347/*
David Howells45025bc2016-08-24 07:30:52 +0100348 * reap dead service connections
David Howells17926a72007-04-26 15:48:28 -0700349 */
David Howells2baec2c2017-05-24 17:02:32 +0100350void rxrpc_service_connection_reaper(struct work_struct *work)
David Howells17926a72007-04-26 15:48:28 -0700351{
352 struct rxrpc_connection *conn, *_p;
David Howells2baec2c2017-05-24 17:02:32 +0100353 struct rxrpc_net *rxnet =
354 container_of(to_delayed_work(work),
355 struct rxrpc_net, service_conn_reaper);
David Howellsf51b4482016-08-23 15:27:24 +0100356 unsigned long reap_older_than, earliest, idle_timestamp, now;
David Howells17926a72007-04-26 15:48:28 -0700357
358 LIST_HEAD(graveyard);
359
360 _enter("");
361
David Howellsf51b4482016-08-23 15:27:24 +0100362 now = jiffies;
363 reap_older_than = now - rxrpc_connection_expiry * HZ;
David Howells17926a72007-04-26 15:48:28 -0700364 earliest = ULONG_MAX;
365
David Howells2baec2c2017-05-24 17:02:32 +0100366 write_lock(&rxnet->conn_lock);
367 list_for_each_entry_safe(conn, _p, &rxnet->service_conns, link) {
David Howells001c1122016-06-30 10:45:22 +0100368 ASSERTCMP(atomic_read(&conn->usage), >, 0);
369 if (likely(atomic_read(&conn->usage) > 1))
David Howells17926a72007-04-26 15:48:28 -0700370 continue;
David Howells00e90712016-09-08 11:10:12 +0100371 if (conn->state == RXRPC_CONN_SERVICE_PREALLOC)
372 continue;
David Howells17926a72007-04-26 15:48:28 -0700373
David Howellsf51b4482016-08-23 15:27:24 +0100374 idle_timestamp = READ_ONCE(conn->idle_timestamp);
375 _debug("reap CONN %d { u=%d,t=%ld }",
376 conn->debug_id, atomic_read(&conn->usage),
377 (long)reap_older_than - (long)idle_timestamp);
378
379 if (time_after(idle_timestamp, reap_older_than)) {
380 if (time_before(idle_timestamp, earliest))
381 earliest = idle_timestamp;
David Howells001c1122016-06-30 10:45:22 +0100382 continue;
David Howells999b69f2016-06-17 15:42:35 +0100383 }
David Howells001c1122016-06-30 10:45:22 +0100384
385 /* The usage count sits at 1 whilst the object is unused on the
386 * list; we reduce that to 0 to make the object unavailable.
387 */
388 if (atomic_cmpxchg(&conn->usage, 1, 0) != 1)
389 continue;
390
391 if (rxrpc_conn_is_client(conn))
David Howells45025bc2016-08-24 07:30:52 +0100392 BUG();
David Howells001c1122016-06-30 10:45:22 +0100393 else
394 rxrpc_unpublish_service_conn(conn);
395
396 list_move_tail(&conn->link, &graveyard);
David Howells17926a72007-04-26 15:48:28 -0700397 }
David Howells2baec2c2017-05-24 17:02:32 +0100398 write_unlock(&rxnet->conn_lock);
David Howells17926a72007-04-26 15:48:28 -0700399
400 if (earliest != ULONG_MAX) {
401 _debug("reschedule reaper %ld", (long) earliest - now);
David Howellsf51b4482016-08-23 15:27:24 +0100402 ASSERT(time_after(earliest, now));
David Howells2baec2c2017-05-24 17:02:32 +0100403 rxrpc_queue_delayed_work(&rxnet->client_conn_reaper,
David Howellsf51b4482016-08-23 15:27:24 +0100404 earliest - now);
David Howells17926a72007-04-26 15:48:28 -0700405 }
406
David Howells17926a72007-04-26 15:48:28 -0700407 while (!list_empty(&graveyard)) {
408 conn = list_entry(graveyard.next, struct rxrpc_connection,
409 link);
410 list_del_init(&conn->link);
411
412 ASSERTCMP(atomic_read(&conn->usage), ==, 0);
David Howells45025bc2016-08-24 07:30:52 +0100413 rxrpc_kill_connection(conn);
David Howells17926a72007-04-26 15:48:28 -0700414 }
415
416 _leave("");
417}
418
419/*
David Howells45025bc2016-08-24 07:30:52 +0100420 * preemptively destroy all the service connection records rather than
421 * waiting for them to time out
David Howells17926a72007-04-26 15:48:28 -0700422 */
David Howells2baec2c2017-05-24 17:02:32 +0100423void rxrpc_destroy_all_connections(struct rxrpc_net *rxnet)
David Howells17926a72007-04-26 15:48:28 -0700424{
David Howellsdee46362016-06-27 17:11:19 +0100425 struct rxrpc_connection *conn, *_p;
426 bool leak = false;
427
David Howells17926a72007-04-26 15:48:28 -0700428 _enter("");
429
David Howells2baec2c2017-05-24 17:02:32 +0100430 rxrpc_destroy_all_client_connections(rxnet);
David Howells45025bc2016-08-24 07:30:52 +0100431
David Howells5873c082014-02-07 18:58:44 +0000432 rxrpc_connection_expiry = 0;
David Howells2baec2c2017-05-24 17:02:32 +0100433 cancel_delayed_work(&rxnet->client_conn_reaper);
434 rxrpc_queue_delayed_work(&rxnet->client_conn_reaper, 0);
David Howellsdee46362016-06-27 17:11:19 +0100435 flush_workqueue(rxrpc_workqueue);
436
David Howells2baec2c2017-05-24 17:02:32 +0100437 write_lock(&rxnet->conn_lock);
438 list_for_each_entry_safe(conn, _p, &rxnet->service_conns, link) {
David Howellsdee46362016-06-27 17:11:19 +0100439 pr_err("AF_RXRPC: Leaked conn %p {%d}\n",
440 conn, atomic_read(&conn->usage));
441 leak = true;
442 }
David Howells2baec2c2017-05-24 17:02:32 +0100443 write_unlock(&rxnet->conn_lock);
David Howellsdee46362016-06-27 17:11:19 +0100444 BUG_ON(leak);
445
David Howells2baec2c2017-05-24 17:02:32 +0100446 ASSERT(list_empty(&rxnet->conn_proc_list));
David Howells17926a72007-04-26 15:48:28 -0700447
448 _leave("");
449}