Commit | Line | Data |
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b97bf3fd PL |
1 | /* |
2 | * net/tipc/msg.h: Include file for TIPC message header routines | |
c4307285 | 3 | * |
1f9eda7e | 4 | * Copyright (c) 2000-2007, Ericsson AB |
741de3e9 | 5 | * Copyright (c) 2005-2008, 2010-2011, 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 | #ifndef _TIPC_MSG_H | |
38 | #define _TIPC_MSG_H | |
39 | ||
d265fef6 | 40 | #include "bearer.h" |
b97bf3fd | 41 | |
cc4c4353 AS |
42 | /* |
43 | * Constants and routines used to read and write TIPC payload message headers | |
44 | * | |
45 | * Note: Some items are also used with TIPC internal message headers | |
46 | */ | |
47 | ||
b97bf3fd | 48 | #define TIPC_VERSION 2 |
06d82c91 | 49 | |
d265fef6 | 50 | /* |
cc4c4353 AS |
51 | * Payload message users are defined in TIPC's public API: |
52 | * - TIPC_LOW_IMPORTANCE | |
53 | * - TIPC_MEDIUM_IMPORTANCE | |
54 | * - TIPC_HIGH_IMPORTANCE | |
55 | * - TIPC_CRITICAL_IMPORTANCE | |
56 | */ | |
57 | ||
58 | /* | |
59 | * Payload message types | |
d265fef6 AS |
60 | */ |
61 | ||
62 | #define TIPC_CONN_MSG 0 | |
63 | #define TIPC_MCAST_MSG 1 | |
64 | #define TIPC_NAMED_MSG 2 | |
65 | #define TIPC_DIRECT_MSG 3 | |
66 | ||
cc4c4353 AS |
67 | /* |
68 | * Message header sizes | |
69 | */ | |
d265fef6 | 70 | |
741d9eb7 AS |
71 | #define SHORT_H_SIZE 24 /* In-cluster basic payload message */ |
72 | #define BASIC_H_SIZE 32 /* Basic payload message */ | |
73 | #define NAMED_H_SIZE 40 /* Named payload message */ | |
74 | #define MCAST_H_SIZE 44 /* Multicast payload message */ | |
06d82c91 AS |
75 | #define INT_H_SIZE 40 /* Internal messages */ |
76 | #define MIN_H_SIZE 24 /* Smallest legal TIPC header size */ | |
77 | #define MAX_H_SIZE 60 /* Largest possible TIPC header size */ | |
78 | ||
b97bf3fd | 79 | #define MAX_MSG_SIZE (MAX_H_SIZE + TIPC_MAX_USER_MSG_SIZE) |
b97bf3fd | 80 | |
3d749a6a AS |
81 | #define TIPC_MEDIA_ADDR_OFFSET 5 |
82 | ||
b97bf3fd | 83 | |
d265fef6 AS |
84 | struct tipc_msg { |
85 | __be32 hdr[15]; | |
86 | }; | |
c4307285 | 87 | |
b97bf3fd | 88 | |
d265fef6 AS |
89 | static inline u32 msg_word(struct tipc_msg *m, u32 pos) |
90 | { | |
91 | return ntohl(m->hdr[pos]); | |
92 | } | |
b97bf3fd PL |
93 | |
94 | static inline void msg_set_word(struct tipc_msg *m, u32 w, u32 val) | |
95 | { | |
96 | m->hdr[w] = htonl(val); | |
97 | } | |
98 | ||
d265fef6 AS |
99 | static inline u32 msg_bits(struct tipc_msg *m, u32 w, u32 pos, u32 mask) |
100 | { | |
101 | return (msg_word(m, w) >> pos) & mask; | |
102 | } | |
103 | ||
b97bf3fd PL |
104 | static inline void msg_set_bits(struct tipc_msg *m, u32 w, |
105 | u32 pos, u32 mask, u32 val) | |
106 | { | |
1f9eda7e | 107 | val = (val & mask) << pos; |
becf3da2 AV |
108 | mask = mask << pos; |
109 | m->hdr[w] &= ~htonl(mask); | |
110 | m->hdr[w] |= htonl(val); | |
b97bf3fd PL |
111 | } |
112 | ||
40aecb1b AS |
113 | static inline void msg_swap_words(struct tipc_msg *msg, u32 a, u32 b) |
114 | { | |
115 | u32 temp = msg->hdr[a]; | |
116 | ||
117 | msg->hdr[a] = msg->hdr[b]; | |
118 | msg->hdr[b] = temp; | |
119 | } | |
120 | ||
c4307285 | 121 | /* |
b97bf3fd PL |
122 | * Word 0 |
123 | */ | |
124 | ||
125 | static inline u32 msg_version(struct tipc_msg *m) | |
126 | { | |
127 | return msg_bits(m, 0, 29, 7); | |
128 | } | |
129 | ||
c4307285 | 130 | static inline void msg_set_version(struct tipc_msg *m) |
b97bf3fd | 131 | { |
37695420 | 132 | msg_set_bits(m, 0, 29, 7, TIPC_VERSION); |
b97bf3fd PL |
133 | } |
134 | ||
135 | static inline u32 msg_user(struct tipc_msg *m) | |
136 | { | |
137 | return msg_bits(m, 0, 25, 0xf); | |
138 | } | |
139 | ||
140 | static inline u32 msg_isdata(struct tipc_msg *m) | |
141 | { | |
a02cec21 | 142 | return msg_user(m) <= TIPC_CRITICAL_IMPORTANCE; |
b97bf3fd PL |
143 | } |
144 | ||
c4307285 | 145 | static inline void msg_set_user(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
146 | { |
147 | msg_set_bits(m, 0, 25, 0xf, n); | |
148 | } | |
149 | ||
d265fef6 AS |
150 | static inline u32 msg_importance(struct tipc_msg *m) |
151 | { | |
152 | return msg_bits(m, 0, 25, 0xf); | |
153 | } | |
154 | ||
c4307285 | 155 | static inline void msg_set_importance(struct tipc_msg *m, u32 i) |
b97bf3fd PL |
156 | { |
157 | msg_set_user(m, i); | |
158 | } | |
159 | ||
d265fef6 AS |
160 | static inline u32 msg_hdr_sz(struct tipc_msg *m) |
161 | { | |
162 | return msg_bits(m, 0, 21, 0xf) << 2; | |
163 | } | |
164 | ||
0e65967e | 165 | static inline void msg_set_hdr_sz(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
166 | { |
167 | msg_set_bits(m, 0, 21, 0xf, n>>2); | |
168 | } | |
169 | ||
d265fef6 AS |
170 | static inline u32 msg_size(struct tipc_msg *m) |
171 | { | |
172 | return msg_bits(m, 0, 0, 0x1ffff); | |
173 | } | |
174 | ||
175 | static inline u32 msg_data_sz(struct tipc_msg *m) | |
176 | { | |
177 | return msg_size(m) - msg_hdr_sz(m); | |
178 | } | |
179 | ||
c4307285 | 180 | static inline int msg_non_seq(struct tipc_msg *m) |
b97bf3fd PL |
181 | { |
182 | return msg_bits(m, 0, 20, 1); | |
183 | } | |
184 | ||
40aecb1b | 185 | static inline void msg_set_non_seq(struct tipc_msg *m, u32 n) |
b97bf3fd | 186 | { |
40aecb1b | 187 | msg_set_bits(m, 0, 20, 1, n); |
b97bf3fd PL |
188 | } |
189 | ||
c4307285 | 190 | static inline int msg_dest_droppable(struct tipc_msg *m) |
b97bf3fd PL |
191 | { |
192 | return msg_bits(m, 0, 19, 1); | |
193 | } | |
194 | ||
c4307285 | 195 | static inline void msg_set_dest_droppable(struct tipc_msg *m, u32 d) |
b97bf3fd PL |
196 | { |
197 | msg_set_bits(m, 0, 19, 1, d); | |
198 | } | |
199 | ||
c4307285 | 200 | static inline int msg_src_droppable(struct tipc_msg *m) |
b97bf3fd PL |
201 | { |
202 | return msg_bits(m, 0, 18, 1); | |
203 | } | |
204 | ||
c4307285 | 205 | static inline void msg_set_src_droppable(struct tipc_msg *m, u32 d) |
b97bf3fd PL |
206 | { |
207 | msg_set_bits(m, 0, 18, 1, d); | |
208 | } | |
209 | ||
210 | static inline void msg_set_size(struct tipc_msg *m, u32 sz) | |
211 | { | |
212 | m->hdr[0] = htonl((msg_word(m, 0) & ~0x1ffff) | sz); | |
213 | } | |
214 | ||
215 | ||
c4307285 | 216 | /* |
b97bf3fd PL |
217 | * Word 1 |
218 | */ | |
219 | ||
d265fef6 AS |
220 | static inline u32 msg_type(struct tipc_msg *m) |
221 | { | |
222 | return msg_bits(m, 1, 29, 0x7); | |
223 | } | |
224 | ||
c4307285 | 225 | static inline void msg_set_type(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
226 | { |
227 | msg_set_bits(m, 1, 29, 0x7, n); | |
228 | } | |
229 | ||
d265fef6 AS |
230 | static inline u32 msg_named(struct tipc_msg *m) |
231 | { | |
232 | return msg_type(m) == TIPC_NAMED_MSG; | |
233 | } | |
234 | ||
235 | static inline u32 msg_mcast(struct tipc_msg *m) | |
236 | { | |
237 | return msg_type(m) == TIPC_MCAST_MSG; | |
238 | } | |
239 | ||
240 | static inline u32 msg_connected(struct tipc_msg *m) | |
241 | { | |
242 | return msg_type(m) == TIPC_CONN_MSG; | |
243 | } | |
244 | ||
245 | static inline u32 msg_errcode(struct tipc_msg *m) | |
246 | { | |
247 | return msg_bits(m, 1, 25, 0xf); | |
248 | } | |
249 | ||
c4307285 | 250 | static inline void msg_set_errcode(struct tipc_msg *m, u32 err) |
b97bf3fd PL |
251 | { |
252 | msg_set_bits(m, 1, 25, 0xf, err); | |
253 | } | |
254 | ||
c4307285 | 255 | static inline u32 msg_reroute_cnt(struct tipc_msg *m) |
b97bf3fd PL |
256 | { |
257 | return msg_bits(m, 1, 21, 0xf); | |
258 | } | |
259 | ||
c4307285 | 260 | static inline void msg_incr_reroute_cnt(struct tipc_msg *m) |
b97bf3fd PL |
261 | { |
262 | msg_set_bits(m, 1, 21, 0xf, msg_reroute_cnt(m) + 1); | |
263 | } | |
264 | ||
c4307285 | 265 | static inline void msg_reset_reroute_cnt(struct tipc_msg *m) |
b97bf3fd PL |
266 | { |
267 | msg_set_bits(m, 1, 21, 0xf, 0); | |
268 | } | |
269 | ||
270 | static inline u32 msg_lookup_scope(struct tipc_msg *m) | |
271 | { | |
272 | return msg_bits(m, 1, 19, 0x3); | |
273 | } | |
274 | ||
c4307285 | 275 | static inline void msg_set_lookup_scope(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
276 | { |
277 | msg_set_bits(m, 1, 19, 0x3, n); | |
278 | } | |
279 | ||
b97bf3fd PL |
280 | static inline u32 msg_bcast_ack(struct tipc_msg *m) |
281 | { | |
282 | return msg_bits(m, 1, 0, 0xffff); | |
283 | } | |
284 | ||
c4307285 | 285 | static inline void msg_set_bcast_ack(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
286 | { |
287 | msg_set_bits(m, 1, 0, 0xffff, n); | |
288 | } | |
289 | ||
290 | ||
c4307285 | 291 | /* |
b97bf3fd PL |
292 | * Word 2 |
293 | */ | |
294 | ||
295 | static inline u32 msg_ack(struct tipc_msg *m) | |
296 | { | |
297 | return msg_bits(m, 2, 16, 0xffff); | |
298 | } | |
299 | ||
c4307285 | 300 | static inline void msg_set_ack(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
301 | { |
302 | msg_set_bits(m, 2, 16, 0xffff, n); | |
303 | } | |
304 | ||
305 | static inline u32 msg_seqno(struct tipc_msg *m) | |
306 | { | |
307 | return msg_bits(m, 2, 0, 0xffff); | |
308 | } | |
309 | ||
c4307285 | 310 | static inline void msg_set_seqno(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
311 | { |
312 | msg_set_bits(m, 2, 0, 0xffff, n); | |
313 | } | |
314 | ||
c4307285 | 315 | /* |
b97bf3fd PL |
316 | * Words 3-10 |
317 | */ | |
318 | ||
319 | ||
d265fef6 AS |
320 | static inline u32 msg_prevnode(struct tipc_msg *m) |
321 | { | |
322 | return msg_word(m, 3); | |
323 | } | |
324 | ||
c4307285 | 325 | static inline void msg_set_prevnode(struct tipc_msg *m, u32 a) |
b97bf3fd PL |
326 | { |
327 | msg_set_word(m, 3, a); | |
328 | } | |
329 | ||
d265fef6 AS |
330 | static inline u32 msg_origport(struct tipc_msg *m) |
331 | { | |
332 | return msg_word(m, 4); | |
333 | } | |
334 | ||
c4307285 | 335 | static inline void msg_set_origport(struct tipc_msg *m, u32 p) |
b97bf3fd PL |
336 | { |
337 | msg_set_word(m, 4, p); | |
338 | } | |
339 | ||
d265fef6 AS |
340 | static inline u32 msg_destport(struct tipc_msg *m) |
341 | { | |
342 | return msg_word(m, 5); | |
343 | } | |
344 | ||
c4307285 | 345 | static inline void msg_set_destport(struct tipc_msg *m, u32 p) |
b97bf3fd PL |
346 | { |
347 | msg_set_word(m, 5, p); | |
348 | } | |
349 | ||
d265fef6 AS |
350 | static inline u32 msg_mc_netid(struct tipc_msg *m) |
351 | { | |
352 | return msg_word(m, 5); | |
353 | } | |
354 | ||
c4307285 | 355 | static inline void msg_set_mc_netid(struct tipc_msg *m, u32 p) |
b97bf3fd PL |
356 | { |
357 | msg_set_word(m, 5, p); | |
358 | } | |
359 | ||
d265fef6 AS |
360 | static inline int msg_short(struct tipc_msg *m) |
361 | { | |
741d9eb7 | 362 | return msg_hdr_sz(m) == SHORT_H_SIZE; |
d265fef6 AS |
363 | } |
364 | ||
365 | static inline u32 msg_orignode(struct tipc_msg *m) | |
366 | { | |
367 | if (likely(msg_short(m))) | |
368 | return msg_prevnode(m); | |
369 | return msg_word(m, 6); | |
370 | } | |
371 | ||
c4307285 | 372 | static inline void msg_set_orignode(struct tipc_msg *m, u32 a) |
b97bf3fd PL |
373 | { |
374 | msg_set_word(m, 6, a); | |
375 | } | |
376 | ||
d265fef6 AS |
377 | static inline u32 msg_destnode(struct tipc_msg *m) |
378 | { | |
379 | return msg_word(m, 7); | |
380 | } | |
381 | ||
c4307285 | 382 | static inline void msg_set_destnode(struct tipc_msg *m, u32 a) |
b97bf3fd PL |
383 | { |
384 | msg_set_word(m, 7, a); | |
385 | } | |
386 | ||
c4307285 | 387 | static inline int msg_is_dest(struct tipc_msg *m, u32 d) |
b97bf3fd | 388 | { |
a02cec21 | 389 | return msg_short(m) || (msg_destnode(m) == d); |
b97bf3fd PL |
390 | } |
391 | ||
d265fef6 AS |
392 | static inline u32 msg_nametype(struct tipc_msg *m) |
393 | { | |
394 | return msg_word(m, 8); | |
395 | } | |
396 | ||
c4307285 | 397 | static inline void msg_set_nametype(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
398 | { |
399 | msg_set_word(m, 8, n); | |
400 | } | |
401 | ||
d265fef6 AS |
402 | static inline u32 msg_nameinst(struct tipc_msg *m) |
403 | { | |
404 | return msg_word(m, 9); | |
405 | } | |
406 | ||
407 | static inline u32 msg_namelower(struct tipc_msg *m) | |
408 | { | |
409 | return msg_nameinst(m); | |
410 | } | |
411 | ||
c4307285 | 412 | static inline void msg_set_namelower(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
413 | { |
414 | msg_set_word(m, 9, n); | |
415 | } | |
416 | ||
c4307285 | 417 | static inline void msg_set_nameinst(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
418 | { |
419 | msg_set_namelower(m, n); | |
420 | } | |
421 | ||
d265fef6 AS |
422 | static inline u32 msg_nameupper(struct tipc_msg *m) |
423 | { | |
424 | return msg_word(m, 10); | |
425 | } | |
426 | ||
c4307285 | 427 | static inline void msg_set_nameupper(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
428 | { |
429 | msg_set_word(m, 10, n); | |
430 | } | |
431 | ||
d265fef6 AS |
432 | static inline unchar *msg_data(struct tipc_msg *m) |
433 | { | |
434 | return ((unchar *)m) + msg_hdr_sz(m); | |
435 | } | |
436 | ||
b97bf3fd PL |
437 | static inline struct tipc_msg *msg_get_wrapped(struct tipc_msg *m) |
438 | { | |
439 | return (struct tipc_msg *)msg_data(m); | |
440 | } | |
441 | ||
b97bf3fd PL |
442 | |
443 | /* | |
cc4c4353 AS |
444 | * Constants and routines used to read and write TIPC internal message headers |
445 | */ | |
b97bf3fd | 446 | |
c4307285 | 447 | /* |
cc4c4353 | 448 | * Internal message users |
b97bf3fd PL |
449 | */ |
450 | ||
451 | #define BCAST_PROTOCOL 5 | |
452 | #define MSG_BUNDLER 6 | |
453 | #define LINK_PROTOCOL 7 | |
454 | #define CONN_MANAGER 8 | |
51a8e4de | 455 | #define ROUTE_DISTRIBUTOR 9 /* obsoleted */ |
b97bf3fd PL |
456 | #define CHANGEOVER_PROTOCOL 10 |
457 | #define NAME_DISTRIBUTOR 11 | |
458 | #define MSG_FRAGMENTER 12 | |
459 | #define LINK_CONFIG 13 | |
b97bf3fd | 460 | |
c4307285 | 461 | /* |
cc4c4353 | 462 | * Connection management protocol message types |
b97bf3fd PL |
463 | */ |
464 | ||
465 | #define CONN_PROBE 0 | |
466 | #define CONN_PROBE_REPLY 1 | |
467 | #define CONN_ACK 2 | |
468 | ||
c4307285 | 469 | /* |
cc4c4353 | 470 | * Name distributor message types |
b97bf3fd PL |
471 | */ |
472 | ||
473 | #define PUBLICATION 0 | |
474 | #define WITHDRAWAL 1 | |
475 | ||
92138d1f AS |
476 | /* |
477 | * Segmentation message types | |
478 | */ | |
479 | ||
480 | #define FIRST_FRAGMENT 0 | |
481 | #define FRAGMENT 1 | |
482 | #define LAST_FRAGMENT 2 | |
483 | ||
484 | /* | |
485 | * Link management protocol message types | |
486 | */ | |
487 | ||
488 | #define STATE_MSG 0 | |
489 | #define RESET_MSG 1 | |
490 | #define ACTIVATE_MSG 2 | |
491 | ||
492 | /* | |
493 | * Changeover tunnel message types | |
494 | */ | |
495 | #define DUPLICATE_MSG 0 | |
496 | #define ORIGINAL_MSG 1 | |
497 | ||
498 | /* | |
499 | * Config protocol message types | |
500 | */ | |
501 | ||
502 | #define DSC_REQ_MSG 0 | |
503 | #define DSC_RESP_MSG 1 | |
504 | ||
b97bf3fd | 505 | |
c4307285 | 506 | /* |
b97bf3fd PL |
507 | * Word 1 |
508 | */ | |
509 | ||
510 | static inline u32 msg_seq_gap(struct tipc_msg *m) | |
511 | { | |
bd784533 | 512 | return msg_bits(m, 1, 16, 0x1fff); |
b97bf3fd PL |
513 | } |
514 | ||
515 | static inline void msg_set_seq_gap(struct tipc_msg *m, u32 n) | |
516 | { | |
bd784533 | 517 | msg_set_bits(m, 1, 16, 0x1fff, n); |
b97bf3fd PL |
518 | } |
519 | ||
b97bf3fd | 520 | |
c4307285 | 521 | /* |
b97bf3fd PL |
522 | * Word 2 |
523 | */ | |
524 | ||
525 | static inline u32 msg_dest_domain(struct tipc_msg *m) | |
526 | { | |
527 | return msg_word(m, 2); | |
528 | } | |
529 | ||
c4307285 | 530 | static inline void msg_set_dest_domain(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
531 | { |
532 | msg_set_word(m, 2, n); | |
533 | } | |
534 | ||
535 | static inline u32 msg_bcgap_after(struct tipc_msg *m) | |
536 | { | |
537 | return msg_bits(m, 2, 16, 0xffff); | |
538 | } | |
539 | ||
540 | static inline void msg_set_bcgap_after(struct tipc_msg *m, u32 n) | |
541 | { | |
542 | msg_set_bits(m, 2, 16, 0xffff, n); | |
543 | } | |
544 | ||
545 | static inline u32 msg_bcgap_to(struct tipc_msg *m) | |
546 | { | |
547 | return msg_bits(m, 2, 0, 0xffff); | |
548 | } | |
549 | ||
c4307285 | 550 | static inline void msg_set_bcgap_to(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
551 | { |
552 | msg_set_bits(m, 2, 0, 0xffff, n); | |
553 | } | |
554 | ||
555 | ||
c4307285 | 556 | /* |
b97bf3fd PL |
557 | * Word 4 |
558 | */ | |
559 | ||
560 | static inline u32 msg_last_bcast(struct tipc_msg *m) | |
561 | { | |
562 | return msg_bits(m, 4, 16, 0xffff); | |
563 | } | |
564 | ||
565 | static inline void msg_set_last_bcast(struct tipc_msg *m, u32 n) | |
566 | { | |
567 | msg_set_bits(m, 4, 16, 0xffff, n); | |
568 | } | |
569 | ||
570 | ||
571 | static inline u32 msg_fragm_no(struct tipc_msg *m) | |
572 | { | |
573 | return msg_bits(m, 4, 16, 0xffff); | |
574 | } | |
575 | ||
576 | static inline void msg_set_fragm_no(struct tipc_msg *m, u32 n) | |
577 | { | |
578 | msg_set_bits(m, 4, 16, 0xffff, n); | |
579 | } | |
580 | ||
581 | ||
582 | static inline u32 msg_next_sent(struct tipc_msg *m) | |
583 | { | |
584 | return msg_bits(m, 4, 0, 0xffff); | |
585 | } | |
586 | ||
587 | static inline void msg_set_next_sent(struct tipc_msg *m, u32 n) | |
588 | { | |
589 | msg_set_bits(m, 4, 0, 0xffff, n); | |
590 | } | |
591 | ||
592 | ||
593 | static inline u32 msg_long_msgno(struct tipc_msg *m) | |
594 | { | |
595 | return msg_bits(m, 4, 0, 0xffff); | |
596 | } | |
597 | ||
598 | static inline void msg_set_long_msgno(struct tipc_msg *m, u32 n) | |
599 | { | |
600 | msg_set_bits(m, 4, 0, 0xffff, n); | |
601 | } | |
602 | ||
603 | static inline u32 msg_bc_netid(struct tipc_msg *m) | |
604 | { | |
605 | return msg_word(m, 4); | |
606 | } | |
607 | ||
608 | static inline void msg_set_bc_netid(struct tipc_msg *m, u32 id) | |
609 | { | |
610 | msg_set_word(m, 4, id); | |
611 | } | |
612 | ||
613 | static inline u32 msg_link_selector(struct tipc_msg *m) | |
614 | { | |
615 | return msg_bits(m, 4, 0, 1); | |
616 | } | |
617 | ||
618 | static inline void msg_set_link_selector(struct tipc_msg *m, u32 n) | |
619 | { | |
7eb878ed | 620 | msg_set_bits(m, 4, 0, 1, n); |
b97bf3fd PL |
621 | } |
622 | ||
c4307285 | 623 | /* |
b97bf3fd PL |
624 | * Word 5 |
625 | */ | |
626 | ||
627 | static inline u32 msg_session(struct tipc_msg *m) | |
628 | { | |
629 | return msg_bits(m, 5, 16, 0xffff); | |
630 | } | |
631 | ||
632 | static inline void msg_set_session(struct tipc_msg *m, u32 n) | |
633 | { | |
634 | msg_set_bits(m, 5, 16, 0xffff, n); | |
635 | } | |
636 | ||
637 | static inline u32 msg_probe(struct tipc_msg *m) | |
638 | { | |
639 | return msg_bits(m, 5, 0, 1); | |
640 | } | |
641 | ||
642 | static inline void msg_set_probe(struct tipc_msg *m, u32 val) | |
643 | { | |
7eb878ed | 644 | msg_set_bits(m, 5, 0, 1, val); |
b97bf3fd PL |
645 | } |
646 | ||
647 | static inline char msg_net_plane(struct tipc_msg *m) | |
648 | { | |
649 | return msg_bits(m, 5, 1, 7) + 'A'; | |
650 | } | |
651 | ||
652 | static inline void msg_set_net_plane(struct tipc_msg *m, char n) | |
653 | { | |
654 | msg_set_bits(m, 5, 1, 7, (n - 'A')); | |
655 | } | |
656 | ||
657 | static inline u32 msg_linkprio(struct tipc_msg *m) | |
658 | { | |
659 | return msg_bits(m, 5, 4, 0x1f); | |
660 | } | |
661 | ||
662 | static inline void msg_set_linkprio(struct tipc_msg *m, u32 n) | |
663 | { | |
664 | msg_set_bits(m, 5, 4, 0x1f, n); | |
665 | } | |
666 | ||
667 | static inline u32 msg_bearer_id(struct tipc_msg *m) | |
668 | { | |
669 | return msg_bits(m, 5, 9, 0x7); | |
670 | } | |
671 | ||
672 | static inline void msg_set_bearer_id(struct tipc_msg *m, u32 n) | |
673 | { | |
674 | msg_set_bits(m, 5, 9, 0x7, n); | |
675 | } | |
676 | ||
677 | static inline u32 msg_redundant_link(struct tipc_msg *m) | |
678 | { | |
679 | return msg_bits(m, 5, 12, 0x1); | |
680 | } | |
681 | ||
77f167fc | 682 | static inline void msg_set_redundant_link(struct tipc_msg *m, u32 r) |
b97bf3fd | 683 | { |
77f167fc | 684 | msg_set_bits(m, 5, 12, 0x1, r); |
b97bf3fd PL |
685 | } |
686 | ||
3d749a6a AS |
687 | static inline char *msg_media_addr(struct tipc_msg *m) |
688 | { | |
689 | return (char *)&m->hdr[TIPC_MEDIA_ADDR_OFFSET]; | |
690 | } | |
b97bf3fd | 691 | |
c4307285 | 692 | /* |
b97bf3fd PL |
693 | * Word 9 |
694 | */ | |
695 | ||
696 | static inline u32 msg_msgcnt(struct tipc_msg *m) | |
697 | { | |
698 | return msg_bits(m, 9, 16, 0xffff); | |
699 | } | |
700 | ||
701 | static inline void msg_set_msgcnt(struct tipc_msg *m, u32 n) | |
702 | { | |
703 | msg_set_bits(m, 9, 16, 0xffff, n); | |
704 | } | |
705 | ||
706 | static inline u32 msg_bcast_tag(struct tipc_msg *m) | |
707 | { | |
708 | return msg_bits(m, 9, 16, 0xffff); | |
709 | } | |
710 | ||
711 | static inline void msg_set_bcast_tag(struct tipc_msg *m, u32 n) | |
712 | { | |
713 | msg_set_bits(m, 9, 16, 0xffff, n); | |
714 | } | |
715 | ||
c4307285 | 716 | static inline u32 msg_max_pkt(struct tipc_msg *m) |
b97bf3fd | 717 | { |
a02cec21 | 718 | return msg_bits(m, 9, 16, 0xffff) * 4; |
b97bf3fd PL |
719 | } |
720 | ||
c4307285 | 721 | static inline void msg_set_max_pkt(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
722 | { |
723 | msg_set_bits(m, 9, 16, 0xffff, (n / 4)); | |
724 | } | |
725 | ||
726 | static inline u32 msg_link_tolerance(struct tipc_msg *m) | |
727 | { | |
728 | return msg_bits(m, 9, 0, 0xffff); | |
729 | } | |
730 | ||
731 | static inline void msg_set_link_tolerance(struct tipc_msg *m, u32 n) | |
732 | { | |
733 | msg_set_bits(m, 9, 0, 0xffff, n); | |
734 | } | |
735 | ||
23461e83 AS |
736 | u32 tipc_msg_tot_importance(struct tipc_msg *m); |
737 | void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type, | |
738 | u32 hsize, u32 destnode); | |
26896904 AS |
739 | int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect, |
740 | u32 num_sect, unsigned int total_len, | |
0e65967e | 741 | int max_size, int usrmem, struct sk_buff **buf); |
b97bf3fd | 742 | |
b97bf3fd | 743 | #endif |