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b97bf3fd PL |
1 | /* |
2 | * net/tipc/port.c: TIPC port code | |
3 | * | |
593a5f22 | 4 | * Copyright (c) 1992-2006, Ericsson AB |
b97bf3fd | 5 | * Copyright (c) 2004-2005, Wind River Systems |
b97bf3fd PL |
6 | * All rights reserved. |
7 | * | |
9ea1fd3c | 8 | * Redistribution and use in source and binary forms, with or without |
b97bf3fd PL |
9 | * modification, are permitted provided that the following conditions are met: |
10 | * | |
9ea1fd3c PL |
11 | * 1. Redistributions of source code must retain the above copyright |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * 2. Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in the | |
15 | * documentation and/or other materials provided with the distribution. | |
16 | * 3. Neither the names of the copyright holders nor the names of its | |
17 | * contributors may be used to endorse or promote products derived from | |
18 | * this software without specific prior written permission. | |
b97bf3fd | 19 | * |
9ea1fd3c PL |
20 | * Alternatively, this software may be distributed under the terms of the |
21 | * GNU General Public License ("GPL") version 2 as published by the Free | |
22 | * Software Foundation. | |
23 | * | |
24 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
25 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
28 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
29 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
30 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
31 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
32 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
33 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
b97bf3fd PL |
34 | * POSSIBILITY OF SUCH DAMAGE. |
35 | */ | |
36 | ||
37 | #include "core.h" | |
38 | #include "config.h" | |
39 | #include "dbg.h" | |
40 | #include "port.h" | |
41 | #include "addr.h" | |
42 | #include "link.h" | |
43 | #include "node.h" | |
44 | #include "port.h" | |
45 | #include "name_table.h" | |
46 | #include "user_reg.h" | |
47 | #include "msg.h" | |
48 | #include "bcast.h" | |
49 | ||
50 | /* Connection management: */ | |
51 | #define PROBING_INTERVAL 3600000 /* [ms] => 1 h */ | |
52 | #define CONFIRMED 0 | |
53 | #define PROBING 1 | |
54 | ||
55 | #define MAX_REJECT_SIZE 1024 | |
56 | ||
57 | static struct sk_buff *msg_queue_head = 0; | |
58 | static struct sk_buff *msg_queue_tail = 0; | |
59 | ||
60 | spinlock_t port_list_lock = SPIN_LOCK_UNLOCKED; | |
61 | static spinlock_t queue_lock = SPIN_LOCK_UNLOCKED; | |
62 | ||
63 | LIST_HEAD(ports); | |
64 | static void port_handle_node_down(unsigned long ref); | |
65 | static struct sk_buff* port_build_self_abort_msg(struct port *,u32 err); | |
66 | static struct sk_buff* port_build_peer_abort_msg(struct port *,u32 err); | |
67 | static void port_timeout(unsigned long ref); | |
68 | ||
69 | ||
70 | static inline u32 port_peernode(struct port *p_ptr) | |
71 | { | |
72 | return msg_destnode(&p_ptr->publ.phdr); | |
73 | } | |
74 | ||
75 | static inline u32 port_peerport(struct port *p_ptr) | |
76 | { | |
77 | return msg_destport(&p_ptr->publ.phdr); | |
78 | } | |
79 | ||
80 | static inline u32 port_out_seqno(struct port *p_ptr) | |
81 | { | |
82 | return msg_transp_seqno(&p_ptr->publ.phdr); | |
83 | } | |
84 | ||
85 | static inline void port_set_out_seqno(struct port *p_ptr, u32 seqno) | |
86 | { | |
87 | msg_set_transp_seqno(&p_ptr->publ.phdr,seqno); | |
88 | } | |
89 | ||
90 | static inline void port_incr_out_seqno(struct port *p_ptr) | |
91 | { | |
92 | struct tipc_msg *m = &p_ptr->publ.phdr; | |
93 | ||
94 | if (likely(!msg_routed(m))) | |
95 | return; | |
96 | msg_set_transp_seqno(m, (msg_transp_seqno(m) + 1)); | |
97 | } | |
98 | ||
99 | /** | |
100 | * tipc_multicast - send a multicast message to local and remote destinations | |
101 | */ | |
102 | ||
103 | int tipc_multicast(u32 ref, struct tipc_name_seq const *seq, u32 domain, | |
104 | u32 num_sect, struct iovec const *msg_sect) | |
105 | { | |
106 | struct tipc_msg *hdr; | |
107 | struct sk_buff *buf; | |
108 | struct sk_buff *ibuf = NULL; | |
109 | struct port_list dports = {0, NULL, }; | |
110 | struct port *oport = port_deref(ref); | |
111 | int ext_targets; | |
112 | int res; | |
113 | ||
114 | if (unlikely(!oport)) | |
115 | return -EINVAL; | |
116 | ||
117 | /* Create multicast message */ | |
118 | ||
119 | hdr = &oport->publ.phdr; | |
120 | msg_set_type(hdr, TIPC_MCAST_MSG); | |
121 | msg_set_nametype(hdr, seq->type); | |
122 | msg_set_namelower(hdr, seq->lower); | |
123 | msg_set_nameupper(hdr, seq->upper); | |
124 | msg_set_hdr_sz(hdr, MCAST_H_SIZE); | |
125 | res = msg_build(hdr, msg_sect, num_sect, MAX_MSG_SIZE, | |
126 | !oport->user_port, &buf); | |
127 | if (unlikely(!buf)) | |
128 | return res; | |
129 | ||
130 | /* Figure out where to send multicast message */ | |
131 | ||
132 | ext_targets = nametbl_mc_translate(seq->type, seq->lower, seq->upper, | |
133 | TIPC_NODE_SCOPE, &dports); | |
134 | ||
135 | /* Send message to destinations (duplicate it only if necessary) */ | |
136 | ||
137 | if (ext_targets) { | |
138 | if (dports.count != 0) { | |
139 | ibuf = skb_copy(buf, GFP_ATOMIC); | |
140 | if (ibuf == NULL) { | |
141 | port_list_free(&dports); | |
142 | buf_discard(buf); | |
143 | return -ENOMEM; | |
144 | } | |
145 | } | |
146 | res = bclink_send_msg(buf); | |
147 | if ((res < 0) && (dports.count != 0)) { | |
148 | buf_discard(ibuf); | |
149 | } | |
150 | } else { | |
151 | ibuf = buf; | |
152 | } | |
153 | ||
154 | if (res >= 0) { | |
155 | if (ibuf) | |
156 | port_recv_mcast(ibuf, &dports); | |
157 | } else { | |
158 | port_list_free(&dports); | |
159 | } | |
160 | return res; | |
161 | } | |
162 | ||
163 | /** | |
164 | * port_recv_mcast - deliver multicast message to all destination ports | |
165 | * | |
166 | * If there is no port list, perform a lookup to create one | |
167 | */ | |
168 | ||
169 | void port_recv_mcast(struct sk_buff *buf, struct port_list *dp) | |
170 | { | |
171 | struct tipc_msg* msg; | |
172 | struct port_list dports = {0, NULL, }; | |
173 | struct port_list *item = dp; | |
174 | int cnt = 0; | |
175 | ||
176 | assert(buf); | |
177 | msg = buf_msg(buf); | |
178 | ||
179 | /* Create destination port list, if one wasn't supplied */ | |
180 | ||
181 | if (dp == NULL) { | |
182 | nametbl_mc_translate(msg_nametype(msg), | |
183 | msg_namelower(msg), | |
184 | msg_nameupper(msg), | |
185 | TIPC_CLUSTER_SCOPE, | |
186 | &dports); | |
187 | item = dp = &dports; | |
188 | } | |
189 | ||
190 | /* Deliver a copy of message to each destination port */ | |
191 | ||
192 | if (dp->count != 0) { | |
193 | if (dp->count == 1) { | |
194 | msg_set_destport(msg, dp->ports[0]); | |
195 | port_recv_msg(buf); | |
196 | port_list_free(dp); | |
197 | return; | |
198 | } | |
199 | for (; cnt < dp->count; cnt++) { | |
200 | int index = cnt % PLSIZE; | |
201 | struct sk_buff *b = skb_clone(buf, GFP_ATOMIC); | |
202 | ||
203 | if (b == NULL) { | |
204 | warn("Buffer allocation failure\n"); | |
205 | msg_dbg(msg, "LOST:"); | |
206 | goto exit; | |
207 | } | |
208 | if ((index == 0) && (cnt != 0)) { | |
209 | item = item->next; | |
210 | } | |
211 | msg_set_destport(buf_msg(b),item->ports[index]); | |
212 | port_recv_msg(b); | |
213 | } | |
214 | } | |
215 | exit: | |
216 | buf_discard(buf); | |
217 | port_list_free(dp); | |
218 | } | |
219 | ||
220 | /** | |
221 | * tipc_createport_raw - create a native TIPC port | |
222 | * | |
223 | * Returns local port reference | |
224 | */ | |
225 | ||
226 | u32 tipc_createport_raw(void *usr_handle, | |
227 | u32 (*dispatcher)(struct tipc_port *, struct sk_buff *), | |
228 | void (*wakeup)(struct tipc_port *), | |
229 | const u32 importance) | |
230 | { | |
231 | struct port *p_ptr; | |
232 | struct tipc_msg *msg; | |
233 | u32 ref; | |
234 | ||
235 | p_ptr = kmalloc(sizeof(*p_ptr), GFP_ATOMIC); | |
236 | if (p_ptr == NULL) { | |
237 | warn("Memory squeeze; failed to create port\n"); | |
238 | return 0; | |
239 | } | |
240 | memset(p_ptr, 0, sizeof(*p_ptr)); | |
241 | ref = ref_acquire(p_ptr, &p_ptr->publ.lock); | |
242 | if (!ref) { | |
243 | warn("Reference Table Exhausted\n"); | |
244 | kfree(p_ptr); | |
245 | return 0; | |
246 | } | |
247 | ||
248 | port_lock(ref); | |
249 | p_ptr->publ.ref = ref; | |
250 | msg = &p_ptr->publ.phdr; | |
251 | msg_init(msg, DATA_LOW, TIPC_NAMED_MSG, TIPC_OK, LONG_H_SIZE, 0); | |
252 | msg_set_orignode(msg, tipc_own_addr); | |
253 | msg_set_prevnode(msg, tipc_own_addr); | |
254 | msg_set_origport(msg, ref); | |
255 | msg_set_importance(msg,importance); | |
256 | p_ptr->last_in_seqno = 41; | |
257 | p_ptr->sent = 1; | |
258 | p_ptr->publ.usr_handle = usr_handle; | |
259 | INIT_LIST_HEAD(&p_ptr->wait_list); | |
260 | INIT_LIST_HEAD(&p_ptr->subscription.nodesub_list); | |
261 | p_ptr->congested_link = 0; | |
262 | p_ptr->max_pkt = MAX_PKT_DEFAULT; | |
263 | p_ptr->dispatcher = dispatcher; | |
264 | p_ptr->wakeup = wakeup; | |
265 | p_ptr->user_port = 0; | |
266 | k_init_timer(&p_ptr->timer, (Handler)port_timeout, ref); | |
267 | spin_lock_bh(&port_list_lock); | |
268 | INIT_LIST_HEAD(&p_ptr->publications); | |
269 | INIT_LIST_HEAD(&p_ptr->port_list); | |
270 | list_add_tail(&p_ptr->port_list, &ports); | |
271 | spin_unlock_bh(&port_list_lock); | |
272 | port_unlock(p_ptr); | |
273 | return ref; | |
274 | } | |
275 | ||
276 | int tipc_deleteport(u32 ref) | |
277 | { | |
278 | struct port *p_ptr; | |
279 | struct sk_buff *buf = 0; | |
280 | ||
281 | tipc_withdraw(ref, 0, 0); | |
282 | p_ptr = port_lock(ref); | |
283 | if (!p_ptr) | |
284 | return -EINVAL; | |
285 | ||
286 | ref_discard(ref); | |
287 | port_unlock(p_ptr); | |
288 | ||
289 | k_cancel_timer(&p_ptr->timer); | |
290 | if (p_ptr->publ.connected) { | |
291 | buf = port_build_peer_abort_msg(p_ptr, TIPC_ERR_NO_PORT); | |
292 | nodesub_unsubscribe(&p_ptr->subscription); | |
293 | } | |
294 | if (p_ptr->user_port) { | |
295 | reg_remove_port(p_ptr->user_port); | |
296 | kfree(p_ptr->user_port); | |
297 | } | |
298 | ||
299 | spin_lock_bh(&port_list_lock); | |
300 | list_del(&p_ptr->port_list); | |
301 | list_del(&p_ptr->wait_list); | |
302 | spin_unlock_bh(&port_list_lock); | |
303 | k_term_timer(&p_ptr->timer); | |
304 | kfree(p_ptr); | |
305 | dbg("Deleted port %u\n", ref); | |
306 | net_route_msg(buf); | |
307 | return TIPC_OK; | |
308 | } | |
309 | ||
310 | /** | |
311 | * tipc_get_port() - return port associated with 'ref' | |
312 | * | |
313 | * Note: Port is not locked. | |
314 | */ | |
315 | ||
316 | struct tipc_port *tipc_get_port(const u32 ref) | |
317 | { | |
318 | return (struct tipc_port *)ref_deref(ref); | |
319 | } | |
320 | ||
321 | /** | |
322 | * tipc_get_handle - return user handle associated to port 'ref' | |
323 | */ | |
324 | ||
325 | void *tipc_get_handle(const u32 ref) | |
326 | { | |
327 | struct port *p_ptr; | |
328 | void * handle; | |
329 | ||
330 | p_ptr = port_lock(ref); | |
331 | if (!p_ptr) | |
332 | return 0; | |
333 | handle = p_ptr->publ.usr_handle; | |
334 | port_unlock(p_ptr); | |
335 | return handle; | |
336 | } | |
337 | ||
338 | static inline int port_unreliable(struct port *p_ptr) | |
339 | { | |
340 | return msg_src_droppable(&p_ptr->publ.phdr); | |
341 | } | |
342 | ||
343 | int tipc_portunreliable(u32 ref, unsigned int *isunreliable) | |
344 | { | |
345 | struct port *p_ptr; | |
346 | ||
347 | p_ptr = port_lock(ref); | |
348 | if (!p_ptr) | |
349 | return -EINVAL; | |
350 | *isunreliable = port_unreliable(p_ptr); | |
351 | spin_unlock_bh(p_ptr->publ.lock); | |
352 | return TIPC_OK; | |
353 | } | |
354 | ||
355 | int tipc_set_portunreliable(u32 ref, unsigned int isunreliable) | |
356 | { | |
357 | struct port *p_ptr; | |
358 | ||
359 | p_ptr = port_lock(ref); | |
360 | if (!p_ptr) | |
361 | return -EINVAL; | |
362 | msg_set_src_droppable(&p_ptr->publ.phdr, (isunreliable != 0)); | |
363 | port_unlock(p_ptr); | |
364 | return TIPC_OK; | |
365 | } | |
366 | ||
367 | static inline int port_unreturnable(struct port *p_ptr) | |
368 | { | |
369 | return msg_dest_droppable(&p_ptr->publ.phdr); | |
370 | } | |
371 | ||
372 | int tipc_portunreturnable(u32 ref, unsigned int *isunrejectable) | |
373 | { | |
374 | struct port *p_ptr; | |
375 | ||
376 | p_ptr = port_lock(ref); | |
377 | if (!p_ptr) | |
378 | return -EINVAL; | |
379 | *isunrejectable = port_unreturnable(p_ptr); | |
380 | spin_unlock_bh(p_ptr->publ.lock); | |
381 | return TIPC_OK; | |
382 | } | |
383 | ||
384 | int tipc_set_portunreturnable(u32 ref, unsigned int isunrejectable) | |
385 | { | |
386 | struct port *p_ptr; | |
387 | ||
388 | p_ptr = port_lock(ref); | |
389 | if (!p_ptr) | |
390 | return -EINVAL; | |
391 | msg_set_dest_droppable(&p_ptr->publ.phdr, (isunrejectable != 0)); | |
392 | port_unlock(p_ptr); | |
393 | return TIPC_OK; | |
394 | } | |
395 | ||
396 | /* | |
397 | * port_build_proto_msg(): build a port level protocol | |
398 | * or a connection abortion message. Called with | |
399 | * tipc_port lock on. | |
400 | */ | |
401 | static struct sk_buff *port_build_proto_msg(u32 destport, u32 destnode, | |
402 | u32 origport, u32 orignode, | |
403 | u32 usr, u32 type, u32 err, | |
404 | u32 seqno, u32 ack) | |
405 | { | |
406 | struct sk_buff *buf; | |
407 | struct tipc_msg *msg; | |
408 | ||
409 | buf = buf_acquire(LONG_H_SIZE); | |
410 | if (buf) { | |
411 | msg = buf_msg(buf); | |
412 | msg_init(msg, usr, type, err, LONG_H_SIZE, destnode); | |
413 | msg_set_destport(msg, destport); | |
414 | msg_set_origport(msg, origport); | |
415 | msg_set_destnode(msg, destnode); | |
416 | msg_set_orignode(msg, orignode); | |
417 | msg_set_transp_seqno(msg, seqno); | |
418 | msg_set_msgcnt(msg, ack); | |
419 | msg_dbg(msg, "PORT>SEND>:"); | |
420 | } | |
421 | return buf; | |
422 | } | |
423 | ||
424 | int tipc_set_msg_option(struct tipc_port *tp_ptr, const char *opt, const u32 sz) | |
425 | { | |
426 | msg_expand(&tp_ptr->phdr, msg_destnode(&tp_ptr->phdr)); | |
427 | msg_set_options(&tp_ptr->phdr, opt, sz); | |
428 | return TIPC_OK; | |
429 | } | |
430 | ||
431 | int tipc_reject_msg(struct sk_buff *buf, u32 err) | |
432 | { | |
433 | struct tipc_msg *msg = buf_msg(buf); | |
434 | struct sk_buff *rbuf; | |
435 | struct tipc_msg *rmsg; | |
436 | int hdr_sz; | |
437 | u32 imp = msg_importance(msg); | |
438 | u32 data_sz = msg_data_sz(msg); | |
439 | ||
440 | if (data_sz > MAX_REJECT_SIZE) | |
441 | data_sz = MAX_REJECT_SIZE; | |
442 | if (msg_connected(msg) && (imp < TIPC_CRITICAL_IMPORTANCE)) | |
443 | imp++; | |
444 | msg_dbg(msg, "port->rej: "); | |
445 | ||
446 | /* discard rejected message if it shouldn't be returned to sender */ | |
447 | if (msg_errcode(msg) || msg_dest_droppable(msg)) { | |
448 | buf_discard(buf); | |
449 | return data_sz; | |
450 | } | |
451 | ||
452 | /* construct rejected message */ | |
453 | if (msg_mcast(msg)) | |
454 | hdr_sz = MCAST_H_SIZE; | |
455 | else | |
456 | hdr_sz = LONG_H_SIZE; | |
457 | rbuf = buf_acquire(data_sz + hdr_sz); | |
458 | if (rbuf == NULL) { | |
459 | buf_discard(buf); | |
460 | return data_sz; | |
461 | } | |
462 | rmsg = buf_msg(rbuf); | |
463 | msg_init(rmsg, imp, msg_type(msg), err, hdr_sz, msg_orignode(msg)); | |
464 | msg_set_destport(rmsg, msg_origport(msg)); | |
465 | msg_set_prevnode(rmsg, tipc_own_addr); | |
466 | msg_set_origport(rmsg, msg_destport(msg)); | |
467 | if (msg_short(msg)) | |
468 | msg_set_orignode(rmsg, tipc_own_addr); | |
469 | else | |
470 | msg_set_orignode(rmsg, msg_destnode(msg)); | |
471 | msg_set_size(rmsg, data_sz + hdr_sz); | |
472 | msg_set_nametype(rmsg, msg_nametype(msg)); | |
473 | msg_set_nameinst(rmsg, msg_nameinst(msg)); | |
474 | memcpy(rbuf->data + hdr_sz, msg_data(msg), data_sz); | |
475 | ||
476 | /* send self-abort message when rejecting on a connected port */ | |
477 | if (msg_connected(msg)) { | |
478 | struct sk_buff *abuf = 0; | |
479 | struct port *p_ptr = port_lock(msg_destport(msg)); | |
480 | ||
481 | if (p_ptr) { | |
482 | if (p_ptr->publ.connected) | |
483 | abuf = port_build_self_abort_msg(p_ptr, err); | |
484 | port_unlock(p_ptr); | |
485 | } | |
486 | net_route_msg(abuf); | |
487 | } | |
488 | ||
489 | /* send rejected message */ | |
490 | buf_discard(buf); | |
491 | net_route_msg(rbuf); | |
492 | return data_sz; | |
493 | } | |
494 | ||
495 | int port_reject_sections(struct port *p_ptr, struct tipc_msg *hdr, | |
496 | struct iovec const *msg_sect, u32 num_sect, | |
497 | int err) | |
498 | { | |
499 | struct sk_buff *buf; | |
500 | int res; | |
501 | ||
502 | res = msg_build(hdr, msg_sect, num_sect, MAX_MSG_SIZE, | |
503 | !p_ptr->user_port, &buf); | |
504 | if (!buf) | |
505 | return res; | |
506 | ||
507 | return tipc_reject_msg(buf, err); | |
508 | } | |
509 | ||
510 | static void port_timeout(unsigned long ref) | |
511 | { | |
512 | struct port *p_ptr = port_lock(ref); | |
513 | struct sk_buff *buf = 0; | |
514 | ||
515 | if (!p_ptr || !p_ptr->publ.connected) | |
516 | return; | |
517 | ||
518 | /* Last probe answered ? */ | |
519 | if (p_ptr->probing_state == PROBING) { | |
520 | buf = port_build_self_abort_msg(p_ptr, TIPC_ERR_NO_PORT); | |
521 | } else { | |
522 | buf = port_build_proto_msg(port_peerport(p_ptr), | |
523 | port_peernode(p_ptr), | |
524 | p_ptr->publ.ref, | |
525 | tipc_own_addr, | |
526 | CONN_MANAGER, | |
527 | CONN_PROBE, | |
528 | TIPC_OK, | |
529 | port_out_seqno(p_ptr), | |
530 | 0); | |
531 | port_incr_out_seqno(p_ptr); | |
532 | p_ptr->probing_state = PROBING; | |
533 | k_start_timer(&p_ptr->timer, p_ptr->probing_interval); | |
534 | } | |
535 | port_unlock(p_ptr); | |
536 | net_route_msg(buf); | |
537 | } | |
538 | ||
539 | ||
540 | static void port_handle_node_down(unsigned long ref) | |
541 | { | |
542 | struct port *p_ptr = port_lock(ref); | |
543 | struct sk_buff* buf = 0; | |
544 | ||
545 | if (!p_ptr) | |
546 | return; | |
547 | buf = port_build_self_abort_msg(p_ptr, TIPC_ERR_NO_NODE); | |
548 | port_unlock(p_ptr); | |
549 | net_route_msg(buf); | |
550 | } | |
551 | ||
552 | ||
553 | static struct sk_buff *port_build_self_abort_msg(struct port *p_ptr, u32 err) | |
554 | { | |
555 | u32 imp = msg_importance(&p_ptr->publ.phdr); | |
556 | ||
557 | if (!p_ptr->publ.connected) | |
558 | return 0; | |
559 | if (imp < TIPC_CRITICAL_IMPORTANCE) | |
560 | imp++; | |
561 | return port_build_proto_msg(p_ptr->publ.ref, | |
562 | tipc_own_addr, | |
563 | port_peerport(p_ptr), | |
564 | port_peernode(p_ptr), | |
565 | imp, | |
566 | TIPC_CONN_MSG, | |
567 | err, | |
568 | p_ptr->last_in_seqno + 1, | |
569 | 0); | |
570 | } | |
571 | ||
572 | ||
573 | static struct sk_buff *port_build_peer_abort_msg(struct port *p_ptr, u32 err) | |
574 | { | |
575 | u32 imp = msg_importance(&p_ptr->publ.phdr); | |
576 | ||
577 | if (!p_ptr->publ.connected) | |
578 | return 0; | |
579 | if (imp < TIPC_CRITICAL_IMPORTANCE) | |
580 | imp++; | |
581 | return port_build_proto_msg(port_peerport(p_ptr), | |
582 | port_peernode(p_ptr), | |
583 | p_ptr->publ.ref, | |
584 | tipc_own_addr, | |
585 | imp, | |
586 | TIPC_CONN_MSG, | |
587 | err, | |
588 | port_out_seqno(p_ptr), | |
589 | 0); | |
590 | } | |
591 | ||
592 | void port_recv_proto_msg(struct sk_buff *buf) | |
593 | { | |
594 | struct tipc_msg *msg = buf_msg(buf); | |
595 | struct port *p_ptr = port_lock(msg_destport(msg)); | |
596 | u32 err = TIPC_OK; | |
597 | struct sk_buff *r_buf = 0; | |
598 | struct sk_buff *abort_buf = 0; | |
599 | ||
600 | msg_dbg(msg, "PORT<RECV<:"); | |
601 | ||
602 | if (!p_ptr) { | |
603 | err = TIPC_ERR_NO_PORT; | |
604 | } else if (p_ptr->publ.connected) { | |
605 | if (port_peernode(p_ptr) != msg_orignode(msg)) | |
606 | err = TIPC_ERR_NO_PORT; | |
607 | if (port_peerport(p_ptr) != msg_origport(msg)) | |
608 | err = TIPC_ERR_NO_PORT; | |
609 | if (!err && msg_routed(msg)) { | |
610 | u32 seqno = msg_transp_seqno(msg); | |
611 | u32 myno = ++p_ptr->last_in_seqno; | |
612 | if (seqno != myno) { | |
613 | err = TIPC_ERR_NO_PORT; | |
614 | abort_buf = port_build_self_abort_msg(p_ptr, err); | |
615 | } | |
616 | } | |
617 | if (msg_type(msg) == CONN_ACK) { | |
618 | int wakeup = port_congested(p_ptr) && | |
619 | p_ptr->publ.congested && | |
620 | p_ptr->wakeup; | |
621 | p_ptr->acked += msg_msgcnt(msg); | |
622 | if (port_congested(p_ptr)) | |
623 | goto exit; | |
624 | p_ptr->publ.congested = 0; | |
625 | if (!wakeup) | |
626 | goto exit; | |
627 | p_ptr->wakeup(&p_ptr->publ); | |
628 | goto exit; | |
629 | } | |
630 | } else if (p_ptr->publ.published) { | |
631 | err = TIPC_ERR_NO_PORT; | |
632 | } | |
633 | if (err) { | |
634 | r_buf = port_build_proto_msg(msg_origport(msg), | |
635 | msg_orignode(msg), | |
636 | msg_destport(msg), | |
637 | tipc_own_addr, | |
638 | DATA_HIGH, | |
639 | TIPC_CONN_MSG, | |
640 | err, | |
641 | 0, | |
642 | 0); | |
643 | goto exit; | |
644 | } | |
645 | ||
646 | /* All is fine */ | |
647 | if (msg_type(msg) == CONN_PROBE) { | |
648 | r_buf = port_build_proto_msg(msg_origport(msg), | |
649 | msg_orignode(msg), | |
650 | msg_destport(msg), | |
651 | tipc_own_addr, | |
652 | CONN_MANAGER, | |
653 | CONN_PROBE_REPLY, | |
654 | TIPC_OK, | |
655 | port_out_seqno(p_ptr), | |
656 | 0); | |
657 | } | |
658 | p_ptr->probing_state = CONFIRMED; | |
659 | port_incr_out_seqno(p_ptr); | |
660 | exit: | |
661 | if (p_ptr) | |
662 | port_unlock(p_ptr); | |
663 | net_route_msg(r_buf); | |
664 | net_route_msg(abort_buf); | |
665 | buf_discard(buf); | |
666 | } | |
667 | ||
668 | static void port_print(struct port *p_ptr, struct print_buf *buf, int full_id) | |
669 | { | |
670 | struct publication *publ; | |
671 | ||
672 | if (full_id) | |
673 | tipc_printf(buf, "<%u.%u.%u:%u>:", | |
674 | tipc_zone(tipc_own_addr), tipc_cluster(tipc_own_addr), | |
675 | tipc_node(tipc_own_addr), p_ptr->publ.ref); | |
676 | else | |
677 | tipc_printf(buf, "%-10u:", p_ptr->publ.ref); | |
678 | ||
679 | if (p_ptr->publ.connected) { | |
680 | u32 dport = port_peerport(p_ptr); | |
681 | u32 destnode = port_peernode(p_ptr); | |
682 | ||
683 | tipc_printf(buf, " connected to <%u.%u.%u:%u>", | |
684 | tipc_zone(destnode), tipc_cluster(destnode), | |
685 | tipc_node(destnode), dport); | |
686 | if (p_ptr->publ.conn_type != 0) | |
687 | tipc_printf(buf, " via {%u,%u}", | |
688 | p_ptr->publ.conn_type, | |
689 | p_ptr->publ.conn_instance); | |
690 | } | |
691 | else if (p_ptr->publ.published) { | |
692 | tipc_printf(buf, " bound to"); | |
693 | list_for_each_entry(publ, &p_ptr->publications, pport_list) { | |
694 | if (publ->lower == publ->upper) | |
695 | tipc_printf(buf, " {%u,%u}", publ->type, | |
696 | publ->lower); | |
697 | else | |
698 | tipc_printf(buf, " {%u,%u,%u}", publ->type, | |
699 | publ->lower, publ->upper); | |
700 | } | |
701 | } | |
702 | tipc_printf(buf, "\n"); | |
703 | } | |
704 | ||
705 | #define MAX_PORT_QUERY 32768 | |
706 | ||
707 | struct sk_buff *port_get_ports(void) | |
708 | { | |
709 | struct sk_buff *buf; | |
710 | struct tlv_desc *rep_tlv; | |
711 | struct print_buf pb; | |
712 | struct port *p_ptr; | |
713 | int str_len; | |
714 | ||
715 | buf = cfg_reply_alloc(TLV_SPACE(MAX_PORT_QUERY)); | |
716 | if (!buf) | |
717 | return NULL; | |
718 | rep_tlv = (struct tlv_desc *)buf->data; | |
719 | ||
720 | printbuf_init(&pb, TLV_DATA(rep_tlv), MAX_PORT_QUERY); | |
721 | spin_lock_bh(&port_list_lock); | |
722 | list_for_each_entry(p_ptr, &ports, port_list) { | |
723 | spin_lock_bh(p_ptr->publ.lock); | |
724 | port_print(p_ptr, &pb, 0); | |
725 | spin_unlock_bh(p_ptr->publ.lock); | |
726 | } | |
727 | spin_unlock_bh(&port_list_lock); | |
728 | str_len = printbuf_validate(&pb); | |
729 | ||
730 | skb_put(buf, TLV_SPACE(str_len)); | |
731 | TLV_SET(rep_tlv, TIPC_TLV_ULTRA_STRING, NULL, str_len); | |
732 | ||
733 | return buf; | |
734 | } | |
735 | ||
736 | #if 0 | |
737 | ||
738 | #define MAX_PORT_STATS 2000 | |
739 | ||
740 | struct sk_buff *port_show_stats(const void *req_tlv_area, int req_tlv_space) | |
741 | { | |
742 | u32 ref; | |
743 | struct port *p_ptr; | |
744 | struct sk_buff *buf; | |
745 | struct tlv_desc *rep_tlv; | |
746 | struct print_buf pb; | |
747 | int str_len; | |
748 | ||
749 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_PORT_REF)) | |
750 | return cfg_reply_error_string(TIPC_CFG_TLV_ERROR); | |
751 | ||
752 | ref = *(u32 *)TLV_DATA(req_tlv_area); | |
753 | ref = ntohl(ref); | |
754 | ||
755 | p_ptr = port_lock(ref); | |
756 | if (!p_ptr) | |
757 | return cfg_reply_error_string("port not found"); | |
758 | ||
759 | buf = cfg_reply_alloc(TLV_SPACE(MAX_PORT_STATS)); | |
760 | if (!buf) { | |
761 | port_unlock(p_ptr); | |
762 | return NULL; | |
763 | } | |
764 | rep_tlv = (struct tlv_desc *)buf->data; | |
765 | ||
766 | printbuf_init(&pb, TLV_DATA(rep_tlv), MAX_PORT_STATS); | |
767 | port_print(p_ptr, &pb, 1); | |
768 | /* NEED TO FILL IN ADDITIONAL PORT STATISTICS HERE */ | |
769 | port_unlock(p_ptr); | |
770 | str_len = printbuf_validate(&pb); | |
771 | ||
772 | skb_put(buf, TLV_SPACE(str_len)); | |
773 | TLV_SET(rep_tlv, TIPC_TLV_ULTRA_STRING, NULL, str_len); | |
774 | ||
775 | return buf; | |
776 | } | |
777 | ||
778 | #endif | |
779 | ||
780 | void port_reinit(void) | |
781 | { | |
782 | struct port *p_ptr; | |
783 | struct tipc_msg *msg; | |
784 | ||
785 | spin_lock_bh(&port_list_lock); | |
786 | list_for_each_entry(p_ptr, &ports, port_list) { | |
787 | msg = &p_ptr->publ.phdr; | |
788 | if (msg_orignode(msg) == tipc_own_addr) | |
789 | break; | |
790 | msg_set_orignode(msg, tipc_own_addr); | |
791 | } | |
792 | spin_unlock_bh(&port_list_lock); | |
793 | } | |
794 | ||
795 | ||
796 | /* | |
797 | * port_dispatcher_sigh(): Signal handler for messages destinated | |
798 | * to the tipc_port interface. | |
799 | */ | |
800 | ||
801 | static void port_dispatcher_sigh(void *dummy) | |
802 | { | |
803 | struct sk_buff *buf; | |
804 | ||
805 | spin_lock_bh(&queue_lock); | |
806 | buf = msg_queue_head; | |
807 | msg_queue_head = 0; | |
808 | spin_unlock_bh(&queue_lock); | |
809 | ||
810 | while (buf) { | |
811 | struct port *p_ptr; | |
812 | struct user_port *up_ptr; | |
813 | struct tipc_portid orig; | |
814 | struct tipc_name_seq dseq; | |
815 | void *usr_handle; | |
816 | int connected; | |
817 | int published; | |
818 | ||
819 | struct sk_buff *next = buf->next; | |
820 | struct tipc_msg *msg = buf_msg(buf); | |
821 | u32 dref = msg_destport(msg); | |
822 | ||
823 | p_ptr = port_lock(dref); | |
824 | if (!p_ptr) { | |
825 | /* Port deleted while msg in queue */ | |
826 | tipc_reject_msg(buf, TIPC_ERR_NO_PORT); | |
827 | buf = next; | |
828 | continue; | |
829 | } | |
830 | orig.ref = msg_origport(msg); | |
831 | orig.node = msg_orignode(msg); | |
832 | up_ptr = p_ptr->user_port; | |
833 | usr_handle = up_ptr->usr_handle; | |
834 | connected = p_ptr->publ.connected; | |
835 | published = p_ptr->publ.published; | |
836 | ||
837 | if (unlikely(msg_errcode(msg))) | |
838 | goto err; | |
839 | ||
840 | switch (msg_type(msg)) { | |
841 | ||
842 | case TIPC_CONN_MSG:{ | |
843 | tipc_conn_msg_event cb = up_ptr->conn_msg_cb; | |
844 | u32 peer_port = port_peerport(p_ptr); | |
845 | u32 peer_node = port_peernode(p_ptr); | |
846 | ||
847 | spin_unlock_bh(p_ptr->publ.lock); | |
848 | if (unlikely(!connected)) { | |
849 | if (unlikely(published)) | |
850 | goto reject; | |
851 | tipc_connect2port(dref,&orig); | |
852 | } | |
853 | if (unlikely(msg_origport(msg) != peer_port)) | |
854 | goto reject; | |
855 | if (unlikely(msg_orignode(msg) != peer_node)) | |
856 | goto reject; | |
857 | if (unlikely(!cb)) | |
858 | goto reject; | |
859 | if (unlikely(++p_ptr->publ.conn_unacked >= | |
860 | TIPC_FLOW_CONTROL_WIN)) | |
861 | tipc_acknowledge(dref, | |
862 | p_ptr->publ.conn_unacked); | |
863 | skb_pull(buf, msg_hdr_sz(msg)); | |
864 | cb(usr_handle, dref, &buf, msg_data(msg), | |
865 | msg_data_sz(msg)); | |
866 | break; | |
867 | } | |
868 | case TIPC_DIRECT_MSG:{ | |
869 | tipc_msg_event cb = up_ptr->msg_cb; | |
870 | ||
871 | spin_unlock_bh(p_ptr->publ.lock); | |
872 | if (unlikely(connected)) | |
873 | goto reject; | |
874 | if (unlikely(!cb)) | |
875 | goto reject; | |
876 | skb_pull(buf, msg_hdr_sz(msg)); | |
877 | cb(usr_handle, dref, &buf, msg_data(msg), | |
878 | msg_data_sz(msg), msg_importance(msg), | |
879 | &orig); | |
880 | break; | |
881 | } | |
882 | case TIPC_NAMED_MSG:{ | |
883 | tipc_named_msg_event cb = up_ptr->named_msg_cb; | |
884 | ||
885 | spin_unlock_bh(p_ptr->publ.lock); | |
886 | if (unlikely(connected)) | |
887 | goto reject; | |
888 | if (unlikely(!cb)) | |
889 | goto reject; | |
890 | if (unlikely(!published)) | |
891 | goto reject; | |
892 | dseq.type = msg_nametype(msg); | |
893 | dseq.lower = msg_nameinst(msg); | |
894 | dseq.upper = dseq.lower; | |
895 | skb_pull(buf, msg_hdr_sz(msg)); | |
896 | cb(usr_handle, dref, &buf, msg_data(msg), | |
897 | msg_data_sz(msg), msg_importance(msg), | |
898 | &orig, &dseq); | |
899 | break; | |
900 | } | |
901 | } | |
902 | if (buf) | |
903 | buf_discard(buf); | |
904 | buf = next; | |
905 | continue; | |
906 | err: | |
907 | switch (msg_type(msg)) { | |
908 | ||
909 | case TIPC_CONN_MSG:{ | |
910 | tipc_conn_shutdown_event cb = | |
911 | up_ptr->conn_err_cb; | |
912 | u32 peer_port = port_peerport(p_ptr); | |
913 | u32 peer_node = port_peernode(p_ptr); | |
914 | ||
915 | spin_unlock_bh(p_ptr->publ.lock); | |
916 | if (!connected || !cb) | |
917 | break; | |
918 | if (msg_origport(msg) != peer_port) | |
919 | break; | |
920 | if (msg_orignode(msg) != peer_node) | |
921 | break; | |
922 | tipc_disconnect(dref); | |
923 | skb_pull(buf, msg_hdr_sz(msg)); | |
924 | cb(usr_handle, dref, &buf, msg_data(msg), | |
925 | msg_data_sz(msg), msg_errcode(msg)); | |
926 | break; | |
927 | } | |
928 | case TIPC_DIRECT_MSG:{ | |
929 | tipc_msg_err_event cb = up_ptr->err_cb; | |
930 | ||
931 | spin_unlock_bh(p_ptr->publ.lock); | |
932 | if (connected || !cb) | |
933 | break; | |
934 | skb_pull(buf, msg_hdr_sz(msg)); | |
935 | cb(usr_handle, dref, &buf, msg_data(msg), | |
936 | msg_data_sz(msg), msg_errcode(msg), &orig); | |
937 | break; | |
938 | } | |
939 | case TIPC_NAMED_MSG:{ | |
940 | tipc_named_msg_err_event cb = | |
941 | up_ptr->named_err_cb; | |
942 | ||
943 | spin_unlock_bh(p_ptr->publ.lock); | |
944 | if (connected || !cb) | |
945 | break; | |
946 | dseq.type = msg_nametype(msg); | |
947 | dseq.lower = msg_nameinst(msg); | |
948 | dseq.upper = dseq.lower; | |
949 | skb_pull(buf, msg_hdr_sz(msg)); | |
950 | cb(usr_handle, dref, &buf, msg_data(msg), | |
951 | msg_data_sz(msg), msg_errcode(msg), &dseq); | |
952 | break; | |
953 | } | |
954 | } | |
955 | if (buf) | |
956 | buf_discard(buf); | |
957 | buf = next; | |
958 | continue; | |
959 | reject: | |
960 | tipc_reject_msg(buf, TIPC_ERR_NO_PORT); | |
961 | buf = next; | |
962 | } | |
963 | } | |
964 | ||
965 | /* | |
966 | * port_dispatcher(): Dispatcher for messages destinated | |
967 | * to the tipc_port interface. Called with port locked. | |
968 | */ | |
969 | ||
970 | static u32 port_dispatcher(struct tipc_port *dummy, struct sk_buff *buf) | |
971 | { | |
972 | buf->next = NULL; | |
973 | spin_lock_bh(&queue_lock); | |
974 | if (msg_queue_head) { | |
975 | msg_queue_tail->next = buf; | |
976 | msg_queue_tail = buf; | |
977 | } else { | |
978 | msg_queue_tail = msg_queue_head = buf; | |
979 | k_signal((Handler)port_dispatcher_sigh, 0); | |
980 | } | |
981 | spin_unlock_bh(&queue_lock); | |
982 | return TIPC_OK; | |
983 | } | |
984 | ||
985 | /* | |
986 | * Wake up port after congestion: Called with port locked, | |
987 | * | |
988 | */ | |
989 | ||
990 | static void port_wakeup_sh(unsigned long ref) | |
991 | { | |
992 | struct port *p_ptr; | |
993 | struct user_port *up_ptr; | |
994 | tipc_continue_event cb = 0; | |
995 | void *uh = 0; | |
996 | ||
997 | p_ptr = port_lock(ref); | |
998 | if (p_ptr) { | |
999 | up_ptr = p_ptr->user_port; | |
1000 | if (up_ptr) { | |
1001 | cb = up_ptr->continue_event_cb; | |
1002 | uh = up_ptr->usr_handle; | |
1003 | } | |
1004 | port_unlock(p_ptr); | |
1005 | } | |
1006 | if (cb) | |
1007 | cb(uh, ref); | |
1008 | } | |
1009 | ||
1010 | ||
1011 | static void port_wakeup(struct tipc_port *p_ptr) | |
1012 | { | |
1013 | k_signal((Handler)port_wakeup_sh, p_ptr->ref); | |
1014 | } | |
1015 | ||
1016 | void tipc_acknowledge(u32 ref, u32 ack) | |
1017 | { | |
1018 | struct port *p_ptr; | |
1019 | struct sk_buff *buf = 0; | |
1020 | ||
1021 | p_ptr = port_lock(ref); | |
1022 | if (!p_ptr) | |
1023 | return; | |
1024 | if (p_ptr->publ.connected) { | |
1025 | p_ptr->publ.conn_unacked -= ack; | |
1026 | buf = port_build_proto_msg(port_peerport(p_ptr), | |
1027 | port_peernode(p_ptr), | |
1028 | ref, | |
1029 | tipc_own_addr, | |
1030 | CONN_MANAGER, | |
1031 | CONN_ACK, | |
1032 | TIPC_OK, | |
1033 | port_out_seqno(p_ptr), | |
1034 | ack); | |
1035 | } | |
1036 | port_unlock(p_ptr); | |
1037 | net_route_msg(buf); | |
1038 | } | |
1039 | ||
1040 | /* | |
1041 | * tipc_createport(): user level call. Will add port to | |
1042 | * registry if non-zero user_ref. | |
1043 | */ | |
1044 | ||
1045 | int tipc_createport(u32 user_ref, | |
1046 | void *usr_handle, | |
1047 | unsigned int importance, | |
1048 | tipc_msg_err_event error_cb, | |
1049 | tipc_named_msg_err_event named_error_cb, | |
1050 | tipc_conn_shutdown_event conn_error_cb, | |
1051 | tipc_msg_event msg_cb, | |
1052 | tipc_named_msg_event named_msg_cb, | |
1053 | tipc_conn_msg_event conn_msg_cb, | |
1054 | tipc_continue_event continue_event_cb,/* May be zero */ | |
1055 | u32 *portref) | |
1056 | { | |
1057 | struct user_port *up_ptr; | |
1058 | struct port *p_ptr; | |
1059 | u32 ref; | |
1060 | ||
1061 | up_ptr = (struct user_port *)kmalloc(sizeof(*up_ptr), GFP_ATOMIC); | |
1062 | if (up_ptr == NULL) { | |
1063 | return -ENOMEM; | |
1064 | } | |
1065 | ref = tipc_createport_raw(0, port_dispatcher, port_wakeup, importance); | |
1066 | p_ptr = port_lock(ref); | |
1067 | if (!p_ptr) { | |
1068 | kfree(up_ptr); | |
1069 | return -ENOMEM; | |
1070 | } | |
1071 | ||
1072 | p_ptr->user_port = up_ptr; | |
1073 | up_ptr->user_ref = user_ref; | |
1074 | up_ptr->usr_handle = usr_handle; | |
1075 | up_ptr->ref = p_ptr->publ.ref; | |
1076 | up_ptr->err_cb = error_cb; | |
1077 | up_ptr->named_err_cb = named_error_cb; | |
1078 | up_ptr->conn_err_cb = conn_error_cb; | |
1079 | up_ptr->msg_cb = msg_cb; | |
1080 | up_ptr->named_msg_cb = named_msg_cb; | |
1081 | up_ptr->conn_msg_cb = conn_msg_cb; | |
1082 | up_ptr->continue_event_cb = continue_event_cb; | |
1083 | INIT_LIST_HEAD(&up_ptr->uport_list); | |
1084 | reg_add_port(up_ptr); | |
1085 | *portref = p_ptr->publ.ref; | |
1086 | dbg(" tipc_createport: %x with ref %u\n", p_ptr, p_ptr->publ.ref); | |
1087 | port_unlock(p_ptr); | |
1088 | return TIPC_OK; | |
1089 | } | |
1090 | ||
1091 | int tipc_ownidentity(u32 ref, struct tipc_portid *id) | |
1092 | { | |
1093 | id->ref = ref; | |
1094 | id->node = tipc_own_addr; | |
1095 | return TIPC_OK; | |
1096 | } | |
1097 | ||
1098 | int tipc_portimportance(u32 ref, unsigned int *importance) | |
1099 | { | |
1100 | struct port *p_ptr; | |
1101 | ||
1102 | p_ptr = port_lock(ref); | |
1103 | if (!p_ptr) | |
1104 | return -EINVAL; | |
1105 | *importance = (unsigned int)msg_importance(&p_ptr->publ.phdr); | |
1106 | spin_unlock_bh(p_ptr->publ.lock); | |
1107 | return TIPC_OK; | |
1108 | } | |
1109 | ||
1110 | int tipc_set_portimportance(u32 ref, unsigned int imp) | |
1111 | { | |
1112 | struct port *p_ptr; | |
1113 | ||
1114 | if (imp > TIPC_CRITICAL_IMPORTANCE) | |
1115 | return -EINVAL; | |
1116 | ||
1117 | p_ptr = port_lock(ref); | |
1118 | if (!p_ptr) | |
1119 | return -EINVAL; | |
1120 | msg_set_importance(&p_ptr->publ.phdr, (u32)imp); | |
1121 | spin_unlock_bh(p_ptr->publ.lock); | |
1122 | return TIPC_OK; | |
1123 | } | |
1124 | ||
1125 | ||
1126 | int tipc_publish(u32 ref, unsigned int scope, struct tipc_name_seq const *seq) | |
1127 | { | |
1128 | struct port *p_ptr; | |
1129 | struct publication *publ; | |
1130 | u32 key; | |
1131 | int res = -EINVAL; | |
1132 | ||
1133 | p_ptr = port_lock(ref); | |
1134 | dbg("tipc_publ %u, p_ptr = %x, conn = %x, scope = %x, " | |
1135 | "lower = %u, upper = %u\n", | |
1136 | ref, p_ptr, p_ptr->publ.connected, scope, seq->lower, seq->upper); | |
1137 | if (!p_ptr) | |
1138 | return -EINVAL; | |
1139 | if (p_ptr->publ.connected) | |
1140 | goto exit; | |
1141 | if (seq->lower > seq->upper) | |
1142 | goto exit; | |
1143 | if ((scope < TIPC_ZONE_SCOPE) || (scope > TIPC_NODE_SCOPE)) | |
1144 | goto exit; | |
1145 | key = ref + p_ptr->pub_count + 1; | |
1146 | if (key == ref) { | |
1147 | res = -EADDRINUSE; | |
1148 | goto exit; | |
1149 | } | |
1150 | publ = nametbl_publish(seq->type, seq->lower, seq->upper, | |
1151 | scope, p_ptr->publ.ref, key); | |
1152 | if (publ) { | |
1153 | list_add(&publ->pport_list, &p_ptr->publications); | |
1154 | p_ptr->pub_count++; | |
1155 | p_ptr->publ.published = 1; | |
1156 | res = TIPC_OK; | |
1157 | } | |
1158 | exit: | |
1159 | port_unlock(p_ptr); | |
1160 | return res; | |
1161 | } | |
1162 | ||
1163 | int tipc_withdraw(u32 ref, unsigned int scope, struct tipc_name_seq const *seq) | |
1164 | { | |
1165 | struct port *p_ptr; | |
1166 | struct publication *publ; | |
1167 | struct publication *tpubl; | |
1168 | int res = -EINVAL; | |
1169 | ||
1170 | p_ptr = port_lock(ref); | |
1171 | if (!p_ptr) | |
1172 | return -EINVAL; | |
1173 | if (!p_ptr->publ.published) | |
1174 | goto exit; | |
1175 | if (!seq) { | |
1176 | list_for_each_entry_safe(publ, tpubl, | |
1177 | &p_ptr->publications, pport_list) { | |
1178 | nametbl_withdraw(publ->type, publ->lower, | |
1179 | publ->ref, publ->key); | |
1180 | } | |
1181 | res = TIPC_OK; | |
1182 | } else { | |
1183 | list_for_each_entry_safe(publ, tpubl, | |
1184 | &p_ptr->publications, pport_list) { | |
1185 | if (publ->scope != scope) | |
1186 | continue; | |
1187 | if (publ->type != seq->type) | |
1188 | continue; | |
1189 | if (publ->lower != seq->lower) | |
1190 | continue; | |
1191 | if (publ->upper != seq->upper) | |
1192 | break; | |
1193 | nametbl_withdraw(publ->type, publ->lower, | |
1194 | publ->ref, publ->key); | |
1195 | res = TIPC_OK; | |
1196 | break; | |
1197 | } | |
1198 | } | |
1199 | if (list_empty(&p_ptr->publications)) | |
1200 | p_ptr->publ.published = 0; | |
1201 | exit: | |
1202 | port_unlock(p_ptr); | |
1203 | return res; | |
1204 | } | |
1205 | ||
1206 | int tipc_connect2port(u32 ref, struct tipc_portid const *peer) | |
1207 | { | |
1208 | struct port *p_ptr; | |
1209 | struct tipc_msg *msg; | |
1210 | int res = -EINVAL; | |
1211 | ||
1212 | p_ptr = port_lock(ref); | |
1213 | if (!p_ptr) | |
1214 | return -EINVAL; | |
1215 | if (p_ptr->publ.published || p_ptr->publ.connected) | |
1216 | goto exit; | |
1217 | if (!peer->ref) | |
1218 | goto exit; | |
1219 | ||
1220 | msg = &p_ptr->publ.phdr; | |
1221 | msg_set_destnode(msg, peer->node); | |
1222 | msg_set_destport(msg, peer->ref); | |
1223 | msg_set_orignode(msg, tipc_own_addr); | |
1224 | msg_set_origport(msg, p_ptr->publ.ref); | |
1225 | msg_set_transp_seqno(msg, 42); | |
1226 | msg_set_type(msg, TIPC_CONN_MSG); | |
1227 | if (!may_route(peer->node)) | |
1228 | msg_set_hdr_sz(msg, SHORT_H_SIZE); | |
1229 | else | |
1230 | msg_set_hdr_sz(msg, LONG_H_SIZE); | |
1231 | ||
1232 | p_ptr->probing_interval = PROBING_INTERVAL; | |
1233 | p_ptr->probing_state = CONFIRMED; | |
1234 | p_ptr->publ.connected = 1; | |
1235 | k_start_timer(&p_ptr->timer, p_ptr->probing_interval); | |
1236 | ||
1237 | nodesub_subscribe(&p_ptr->subscription,peer->node, (void *)ref, | |
1238 | (net_ev_handler)port_handle_node_down); | |
1239 | res = TIPC_OK; | |
1240 | exit: | |
1241 | port_unlock(p_ptr); | |
1242 | p_ptr->max_pkt = link_get_max_pkt(peer->node, ref); | |
1243 | return res; | |
1244 | } | |
1245 | ||
1246 | /* | |
1247 | * tipc_disconnect(): Disconnect port form peer. | |
1248 | * This is a node local operation. | |
1249 | */ | |
1250 | ||
1251 | int tipc_disconnect(u32 ref) | |
1252 | { | |
1253 | struct port *p_ptr; | |
1254 | int res = -ENOTCONN; | |
1255 | ||
1256 | p_ptr = port_lock(ref); | |
1257 | if (!p_ptr) | |
1258 | return -EINVAL; | |
1259 | if (p_ptr->publ.connected) { | |
1260 | p_ptr->publ.connected = 0; | |
1261 | /* let timer expire on it's own to avoid deadlock! */ | |
1262 | nodesub_unsubscribe(&p_ptr->subscription); | |
1263 | res = TIPC_OK; | |
1264 | } | |
1265 | port_unlock(p_ptr); | |
1266 | return res; | |
1267 | } | |
1268 | ||
1269 | /* | |
1270 | * tipc_shutdown(): Send a SHUTDOWN msg to peer and disconnect | |
1271 | */ | |
1272 | int tipc_shutdown(u32 ref) | |
1273 | { | |
1274 | struct port *p_ptr; | |
1275 | struct sk_buff *buf = 0; | |
1276 | ||
1277 | p_ptr = port_lock(ref); | |
1278 | if (!p_ptr) | |
1279 | return -EINVAL; | |
1280 | ||
1281 | if (p_ptr->publ.connected) { | |
1282 | u32 imp = msg_importance(&p_ptr->publ.phdr); | |
1283 | if (imp < TIPC_CRITICAL_IMPORTANCE) | |
1284 | imp++; | |
1285 | buf = port_build_proto_msg(port_peerport(p_ptr), | |
1286 | port_peernode(p_ptr), | |
1287 | ref, | |
1288 | tipc_own_addr, | |
1289 | imp, | |
1290 | TIPC_CONN_MSG, | |
1291 | TIPC_CONN_SHUTDOWN, | |
1292 | port_out_seqno(p_ptr), | |
1293 | 0); | |
1294 | } | |
1295 | port_unlock(p_ptr); | |
1296 | net_route_msg(buf); | |
1297 | return tipc_disconnect(ref); | |
1298 | } | |
1299 | ||
1300 | int tipc_isconnected(u32 ref, int *isconnected) | |
1301 | { | |
1302 | struct port *p_ptr; | |
1303 | ||
1304 | p_ptr = port_lock(ref); | |
1305 | if (!p_ptr) | |
1306 | return -EINVAL; | |
1307 | *isconnected = p_ptr->publ.connected; | |
1308 | port_unlock(p_ptr); | |
1309 | return TIPC_OK; | |
1310 | } | |
1311 | ||
1312 | int tipc_peer(u32 ref, struct tipc_portid *peer) | |
1313 | { | |
1314 | struct port *p_ptr; | |
1315 | int res; | |
1316 | ||
1317 | p_ptr = port_lock(ref); | |
1318 | if (!p_ptr) | |
1319 | return -EINVAL; | |
1320 | if (p_ptr->publ.connected) { | |
1321 | peer->ref = port_peerport(p_ptr); | |
1322 | peer->node = port_peernode(p_ptr); | |
1323 | res = TIPC_OK; | |
1324 | } else | |
1325 | res = -ENOTCONN; | |
1326 | port_unlock(p_ptr); | |
1327 | return res; | |
1328 | } | |
1329 | ||
1330 | int tipc_ref_valid(u32 ref) | |
1331 | { | |
1332 | /* Works irrespective of type */ | |
1333 | return !!ref_deref(ref); | |
1334 | } | |
1335 | ||
1336 | ||
1337 | /* | |
1338 | * port_recv_sections(): Concatenate and deliver sectioned | |
1339 | * message for this node. | |
1340 | */ | |
1341 | ||
1342 | int port_recv_sections(struct port *sender, unsigned int num_sect, | |
1343 | struct iovec const *msg_sect) | |
1344 | { | |
1345 | struct sk_buff *buf; | |
1346 | int res; | |
1347 | ||
1348 | res = msg_build(&sender->publ.phdr, msg_sect, num_sect, | |
1349 | MAX_MSG_SIZE, !sender->user_port, &buf); | |
1350 | if (likely(buf)) | |
1351 | port_recv_msg(buf); | |
1352 | return res; | |
1353 | } | |
1354 | ||
1355 | /** | |
1356 | * tipc_send - send message sections on connection | |
1357 | */ | |
1358 | ||
1359 | int tipc_send(u32 ref, unsigned int num_sect, struct iovec const *msg_sect) | |
1360 | { | |
1361 | struct port *p_ptr; | |
1362 | u32 destnode; | |
1363 | int res; | |
1364 | ||
1365 | p_ptr = port_deref(ref); | |
1366 | if (!p_ptr || !p_ptr->publ.connected) | |
1367 | return -EINVAL; | |
1368 | ||
1369 | p_ptr->publ.congested = 1; | |
1370 | if (!port_congested(p_ptr)) { | |
1371 | destnode = port_peernode(p_ptr); | |
1372 | if (likely(destnode != tipc_own_addr)) | |
1373 | res = link_send_sections_fast(p_ptr, msg_sect, num_sect, | |
1374 | destnode); | |
1375 | else | |
1376 | res = port_recv_sections(p_ptr, num_sect, msg_sect); | |
1377 | ||
1378 | if (likely(res != -ELINKCONG)) { | |
1379 | port_incr_out_seqno(p_ptr); | |
1380 | p_ptr->publ.congested = 0; | |
1381 | p_ptr->sent++; | |
1382 | return res; | |
1383 | } | |
1384 | } | |
1385 | if (port_unreliable(p_ptr)) { | |
1386 | p_ptr->publ.congested = 0; | |
1387 | /* Just calculate msg length and return */ | |
1388 | return msg_calc_data_size(msg_sect, num_sect); | |
1389 | } | |
1390 | return -ELINKCONG; | |
1391 | } | |
1392 | ||
1393 | /** | |
1394 | * tipc_send_buf - send message buffer on connection | |
1395 | */ | |
1396 | ||
1397 | int tipc_send_buf(u32 ref, struct sk_buff *buf, unsigned int dsz) | |
1398 | { | |
1399 | struct port *p_ptr; | |
1400 | struct tipc_msg *msg; | |
1401 | u32 destnode; | |
1402 | u32 hsz; | |
1403 | u32 sz; | |
1404 | u32 res; | |
1405 | ||
1406 | p_ptr = port_deref(ref); | |
1407 | if (!p_ptr || !p_ptr->publ.connected) | |
1408 | return -EINVAL; | |
1409 | ||
1410 | msg = &p_ptr->publ.phdr; | |
1411 | hsz = msg_hdr_sz(msg); | |
1412 | sz = hsz + dsz; | |
1413 | msg_set_size(msg, sz); | |
1414 | if (skb_cow(buf, hsz)) | |
1415 | return -ENOMEM; | |
1416 | ||
1417 | skb_push(buf, hsz); | |
1418 | memcpy(buf->data, (unchar *)msg, hsz); | |
1419 | destnode = msg_destnode(msg); | |
1420 | p_ptr->publ.congested = 1; | |
1421 | if (!port_congested(p_ptr)) { | |
1422 | if (likely(destnode != tipc_own_addr)) | |
1423 | res = tipc_send_buf_fast(buf, destnode); | |
1424 | else { | |
1425 | port_recv_msg(buf); | |
1426 | res = sz; | |
1427 | } | |
1428 | if (likely(res != -ELINKCONG)) { | |
1429 | port_incr_out_seqno(p_ptr); | |
1430 | p_ptr->sent++; | |
1431 | p_ptr->publ.congested = 0; | |
1432 | return res; | |
1433 | } | |
1434 | } | |
1435 | if (port_unreliable(p_ptr)) { | |
1436 | p_ptr->publ.congested = 0; | |
1437 | return dsz; | |
1438 | } | |
1439 | return -ELINKCONG; | |
1440 | } | |
1441 | ||
1442 | /** | |
1443 | * tipc_forward2name - forward message sections to port name | |
1444 | */ | |
1445 | ||
1446 | int tipc_forward2name(u32 ref, | |
1447 | struct tipc_name const *name, | |
1448 | u32 domain, | |
1449 | u32 num_sect, | |
1450 | struct iovec const *msg_sect, | |
1451 | struct tipc_portid const *orig, | |
1452 | unsigned int importance) | |
1453 | { | |
1454 | struct port *p_ptr; | |
1455 | struct tipc_msg *msg; | |
1456 | u32 destnode = domain; | |
1457 | u32 destport = 0; | |
1458 | int res; | |
1459 | ||
1460 | p_ptr = port_deref(ref); | |
1461 | if (!p_ptr || p_ptr->publ.connected) | |
1462 | return -EINVAL; | |
1463 | ||
1464 | msg = &p_ptr->publ.phdr; | |
1465 | msg_set_type(msg, TIPC_NAMED_MSG); | |
1466 | msg_set_orignode(msg, orig->node); | |
1467 | msg_set_origport(msg, orig->ref); | |
1468 | msg_set_hdr_sz(msg, LONG_H_SIZE); | |
1469 | msg_set_nametype(msg, name->type); | |
1470 | msg_set_nameinst(msg, name->instance); | |
1471 | msg_set_lookup_scope(msg, addr_scope(domain)); | |
1472 | if (importance <= TIPC_CRITICAL_IMPORTANCE) | |
1473 | msg_set_importance(msg,importance); | |
1474 | destport = nametbl_translate(name->type, name->instance, &destnode); | |
1475 | msg_set_destnode(msg, destnode); | |
1476 | msg_set_destport(msg, destport); | |
1477 | ||
1478 | if (likely(destport || destnode)) { | |
1479 | p_ptr->sent++; | |
1480 | if (likely(destnode == tipc_own_addr)) | |
1481 | return port_recv_sections(p_ptr, num_sect, msg_sect); | |
1482 | res = link_send_sections_fast(p_ptr, msg_sect, num_sect, | |
1483 | destnode); | |
1484 | if (likely(res != -ELINKCONG)) | |
1485 | return res; | |
1486 | if (port_unreliable(p_ptr)) { | |
1487 | /* Just calculate msg length and return */ | |
1488 | return msg_calc_data_size(msg_sect, num_sect); | |
1489 | } | |
1490 | return -ELINKCONG; | |
1491 | } | |
1492 | return port_reject_sections(p_ptr, msg, msg_sect, num_sect, | |
1493 | TIPC_ERR_NO_NAME); | |
1494 | } | |
1495 | ||
1496 | /** | |
1497 | * tipc_send2name - send message sections to port name | |
1498 | */ | |
1499 | ||
1500 | int tipc_send2name(u32 ref, | |
1501 | struct tipc_name const *name, | |
1502 | unsigned int domain, | |
1503 | unsigned int num_sect, | |
1504 | struct iovec const *msg_sect) | |
1505 | { | |
1506 | struct tipc_portid orig; | |
1507 | ||
1508 | orig.ref = ref; | |
1509 | orig.node = tipc_own_addr; | |
1510 | return tipc_forward2name(ref, name, domain, num_sect, msg_sect, &orig, | |
1511 | TIPC_PORT_IMPORTANCE); | |
1512 | } | |
1513 | ||
1514 | /** | |
1515 | * tipc_forward_buf2name - forward message buffer to port name | |
1516 | */ | |
1517 | ||
1518 | int tipc_forward_buf2name(u32 ref, | |
1519 | struct tipc_name const *name, | |
1520 | u32 domain, | |
1521 | struct sk_buff *buf, | |
1522 | unsigned int dsz, | |
1523 | struct tipc_portid const *orig, | |
1524 | unsigned int importance) | |
1525 | { | |
1526 | struct port *p_ptr; | |
1527 | struct tipc_msg *msg; | |
1528 | u32 destnode = domain; | |
1529 | u32 destport = 0; | |
1530 | int res; | |
1531 | ||
1532 | p_ptr = (struct port *)ref_deref(ref); | |
1533 | if (!p_ptr || p_ptr->publ.connected) | |
1534 | return -EINVAL; | |
1535 | ||
1536 | msg = &p_ptr->publ.phdr; | |
1537 | if (importance <= TIPC_CRITICAL_IMPORTANCE) | |
1538 | msg_set_importance(msg, importance); | |
1539 | msg_set_type(msg, TIPC_NAMED_MSG); | |
1540 | msg_set_orignode(msg, orig->node); | |
1541 | msg_set_origport(msg, orig->ref); | |
1542 | msg_set_nametype(msg, name->type); | |
1543 | msg_set_nameinst(msg, name->instance); | |
1544 | msg_set_lookup_scope(msg, addr_scope(domain)); | |
1545 | msg_set_hdr_sz(msg, LONG_H_SIZE); | |
1546 | msg_set_size(msg, LONG_H_SIZE + dsz); | |
1547 | destport = nametbl_translate(name->type, name->instance, &destnode); | |
1548 | msg_set_destnode(msg, destnode); | |
1549 | msg_set_destport(msg, destport); | |
1550 | msg_dbg(msg, "forw2name ==> "); | |
1551 | if (skb_cow(buf, LONG_H_SIZE)) | |
1552 | return -ENOMEM; | |
1553 | skb_push(buf, LONG_H_SIZE); | |
1554 | memcpy(buf->data, (unchar *)msg, LONG_H_SIZE); | |
1555 | msg_dbg(buf_msg(buf),"PREP:"); | |
1556 | if (likely(destport || destnode)) { | |
1557 | p_ptr->sent++; | |
1558 | if (destnode == tipc_own_addr) | |
1559 | return port_recv_msg(buf); | |
1560 | res = tipc_send_buf_fast(buf, destnode); | |
1561 | if (likely(res != -ELINKCONG)) | |
1562 | return res; | |
1563 | if (port_unreliable(p_ptr)) | |
1564 | return dsz; | |
1565 | return -ELINKCONG; | |
1566 | } | |
1567 | return tipc_reject_msg(buf, TIPC_ERR_NO_NAME); | |
1568 | } | |
1569 | ||
1570 | /** | |
1571 | * tipc_send_buf2name - send message buffer to port name | |
1572 | */ | |
1573 | ||
1574 | int tipc_send_buf2name(u32 ref, | |
1575 | struct tipc_name const *dest, | |
1576 | u32 domain, | |
1577 | struct sk_buff *buf, | |
1578 | unsigned int dsz) | |
1579 | { | |
1580 | struct tipc_portid orig; | |
1581 | ||
1582 | orig.ref = ref; | |
1583 | orig.node = tipc_own_addr; | |
1584 | return tipc_forward_buf2name(ref, dest, domain, buf, dsz, &orig, | |
1585 | TIPC_PORT_IMPORTANCE); | |
1586 | } | |
1587 | ||
1588 | /** | |
1589 | * tipc_forward2port - forward message sections to port identity | |
1590 | */ | |
1591 | ||
1592 | int tipc_forward2port(u32 ref, | |
1593 | struct tipc_portid const *dest, | |
1594 | unsigned int num_sect, | |
1595 | struct iovec const *msg_sect, | |
1596 | struct tipc_portid const *orig, | |
1597 | unsigned int importance) | |
1598 | { | |
1599 | struct port *p_ptr; | |
1600 | struct tipc_msg *msg; | |
1601 | int res; | |
1602 | ||
1603 | p_ptr = port_deref(ref); | |
1604 | if (!p_ptr || p_ptr->publ.connected) | |
1605 | return -EINVAL; | |
1606 | ||
1607 | msg = &p_ptr->publ.phdr; | |
1608 | msg_set_type(msg, TIPC_DIRECT_MSG); | |
1609 | msg_set_orignode(msg, orig->node); | |
1610 | msg_set_origport(msg, orig->ref); | |
1611 | msg_set_destnode(msg, dest->node); | |
1612 | msg_set_destport(msg, dest->ref); | |
1613 | msg_set_hdr_sz(msg, DIR_MSG_H_SIZE); | |
1614 | if (importance <= TIPC_CRITICAL_IMPORTANCE) | |
1615 | msg_set_importance(msg, importance); | |
1616 | p_ptr->sent++; | |
1617 | if (dest->node == tipc_own_addr) | |
1618 | return port_recv_sections(p_ptr, num_sect, msg_sect); | |
1619 | res = link_send_sections_fast(p_ptr, msg_sect, num_sect, dest->node); | |
1620 | if (likely(res != -ELINKCONG)) | |
1621 | return res; | |
1622 | if (port_unreliable(p_ptr)) { | |
1623 | /* Just calculate msg length and return */ | |
1624 | return msg_calc_data_size(msg_sect, num_sect); | |
1625 | } | |
1626 | return -ELINKCONG; | |
1627 | } | |
1628 | ||
1629 | /** | |
1630 | * tipc_send2port - send message sections to port identity | |
1631 | */ | |
1632 | ||
1633 | int tipc_send2port(u32 ref, | |
1634 | struct tipc_portid const *dest, | |
1635 | unsigned int num_sect, | |
1636 | struct iovec const *msg_sect) | |
1637 | { | |
1638 | struct tipc_portid orig; | |
1639 | ||
1640 | orig.ref = ref; | |
1641 | orig.node = tipc_own_addr; | |
1642 | return tipc_forward2port(ref, dest, num_sect, msg_sect, &orig, | |
1643 | TIPC_PORT_IMPORTANCE); | |
1644 | } | |
1645 | ||
1646 | /** | |
1647 | * tipc_forward_buf2port - forward message buffer to port identity | |
1648 | */ | |
1649 | int tipc_forward_buf2port(u32 ref, | |
1650 | struct tipc_portid const *dest, | |
1651 | struct sk_buff *buf, | |
1652 | unsigned int dsz, | |
1653 | struct tipc_portid const *orig, | |
1654 | unsigned int importance) | |
1655 | { | |
1656 | struct port *p_ptr; | |
1657 | struct tipc_msg *msg; | |
1658 | int res; | |
1659 | ||
1660 | p_ptr = (struct port *)ref_deref(ref); | |
1661 | if (!p_ptr || p_ptr->publ.connected) | |
1662 | return -EINVAL; | |
1663 | ||
1664 | msg = &p_ptr->publ.phdr; | |
1665 | msg_set_type(msg, TIPC_DIRECT_MSG); | |
1666 | msg_set_orignode(msg, orig->node); | |
1667 | msg_set_origport(msg, orig->ref); | |
1668 | msg_set_destnode(msg, dest->node); | |
1669 | msg_set_destport(msg, dest->ref); | |
1670 | msg_set_hdr_sz(msg, DIR_MSG_H_SIZE); | |
1671 | if (importance <= TIPC_CRITICAL_IMPORTANCE) | |
1672 | msg_set_importance(msg, importance); | |
1673 | msg_set_size(msg, DIR_MSG_H_SIZE + dsz); | |
1674 | if (skb_cow(buf, DIR_MSG_H_SIZE)) | |
1675 | return -ENOMEM; | |
1676 | ||
1677 | skb_push(buf, DIR_MSG_H_SIZE); | |
1678 | memcpy(buf->data, (unchar *)msg, DIR_MSG_H_SIZE); | |
1679 | msg_dbg(msg, "buf2port: "); | |
1680 | p_ptr->sent++; | |
1681 | if (dest->node == tipc_own_addr) | |
1682 | return port_recv_msg(buf); | |
1683 | res = tipc_send_buf_fast(buf, dest->node); | |
1684 | if (likely(res != -ELINKCONG)) | |
1685 | return res; | |
1686 | if (port_unreliable(p_ptr)) | |
1687 | return dsz; | |
1688 | return -ELINKCONG; | |
1689 | } | |
1690 | ||
1691 | /** | |
1692 | * tipc_send_buf2port - send message buffer to port identity | |
1693 | */ | |
1694 | ||
1695 | int tipc_send_buf2port(u32 ref, | |
1696 | struct tipc_portid const *dest, | |
1697 | struct sk_buff *buf, | |
1698 | unsigned int dsz) | |
1699 | { | |
1700 | struct tipc_portid orig; | |
1701 | ||
1702 | orig.ref = ref; | |
1703 | orig.node = tipc_own_addr; | |
1704 | return tipc_forward_buf2port(ref, dest, buf, dsz, &orig, | |
1705 | TIPC_PORT_IMPORTANCE); | |
1706 | } | |
1707 |