Commit | Line | Data |
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b97bf3fd PL |
1 | /* |
2 | * net/tipc/msg.h: Include file for TIPC message header routines | |
c4307285 | 3 | * |
37e22164 | 4 | * Copyright (c) 2000-2007, 2014, 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 | */ | |
b97bf3fd | 47 | #define TIPC_VERSION 2 |
06d82c91 | 48 | |
d265fef6 | 49 | /* |
cc4c4353 AS |
50 | * Payload message users are defined in TIPC's public API: |
51 | * - TIPC_LOW_IMPORTANCE | |
52 | * - TIPC_MEDIUM_IMPORTANCE | |
53 | * - TIPC_HIGH_IMPORTANCE | |
54 | * - TIPC_CRITICAL_IMPORTANCE | |
55 | */ | |
56 | ||
57 | /* | |
58 | * Payload message types | |
d265fef6 | 59 | */ |
d265fef6 AS |
60 | #define TIPC_CONN_MSG 0 |
61 | #define TIPC_MCAST_MSG 1 | |
62 | #define TIPC_NAMED_MSG 2 | |
63 | #define TIPC_DIRECT_MSG 3 | |
64 | ||
cc4c4353 AS |
65 | /* |
66 | * Message header sizes | |
67 | */ | |
741d9eb7 AS |
68 | #define SHORT_H_SIZE 24 /* In-cluster basic payload message */ |
69 | #define BASIC_H_SIZE 32 /* Basic payload message */ | |
70 | #define NAMED_H_SIZE 40 /* Named payload message */ | |
71 | #define MCAST_H_SIZE 44 /* Multicast payload message */ | |
06d82c91 AS |
72 | #define INT_H_SIZE 40 /* Internal messages */ |
73 | #define MIN_H_SIZE 24 /* Smallest legal TIPC header size */ | |
74 | #define MAX_H_SIZE 60 /* Largest possible TIPC header size */ | |
75 | ||
b97bf3fd | 76 | #define MAX_MSG_SIZE (MAX_H_SIZE + TIPC_MAX_USER_MSG_SIZE) |
b97bf3fd | 77 | |
3d749a6a AS |
78 | #define TIPC_MEDIA_ADDR_OFFSET 5 |
79 | ||
b97bf3fd | 80 | |
d265fef6 AS |
81 | struct tipc_msg { |
82 | __be32 hdr[15]; | |
83 | }; | |
c4307285 | 84 | |
b97bf3fd | 85 | |
d265fef6 AS |
86 | static inline u32 msg_word(struct tipc_msg *m, u32 pos) |
87 | { | |
88 | return ntohl(m->hdr[pos]); | |
89 | } | |
b97bf3fd PL |
90 | |
91 | static inline void msg_set_word(struct tipc_msg *m, u32 w, u32 val) | |
92 | { | |
93 | m->hdr[w] = htonl(val); | |
94 | } | |
95 | ||
d265fef6 AS |
96 | static inline u32 msg_bits(struct tipc_msg *m, u32 w, u32 pos, u32 mask) |
97 | { | |
98 | return (msg_word(m, w) >> pos) & mask; | |
99 | } | |
100 | ||
b97bf3fd PL |
101 | static inline void msg_set_bits(struct tipc_msg *m, u32 w, |
102 | u32 pos, u32 mask, u32 val) | |
103 | { | |
1f9eda7e | 104 | val = (val & mask) << pos; |
becf3da2 AV |
105 | mask = mask << pos; |
106 | m->hdr[w] &= ~htonl(mask); | |
107 | m->hdr[w] |= htonl(val); | |
b97bf3fd PL |
108 | } |
109 | ||
40aecb1b AS |
110 | static inline void msg_swap_words(struct tipc_msg *msg, u32 a, u32 b) |
111 | { | |
112 | u32 temp = msg->hdr[a]; | |
113 | ||
114 | msg->hdr[a] = msg->hdr[b]; | |
115 | msg->hdr[b] = temp; | |
116 | } | |
117 | ||
c4307285 | 118 | /* |
b97bf3fd PL |
119 | * Word 0 |
120 | */ | |
b97bf3fd PL |
121 | static inline u32 msg_version(struct tipc_msg *m) |
122 | { | |
123 | return msg_bits(m, 0, 29, 7); | |
124 | } | |
125 | ||
c4307285 | 126 | static inline void msg_set_version(struct tipc_msg *m) |
b97bf3fd | 127 | { |
37695420 | 128 | msg_set_bits(m, 0, 29, 7, TIPC_VERSION); |
b97bf3fd PL |
129 | } |
130 | ||
131 | static inline u32 msg_user(struct tipc_msg *m) | |
132 | { | |
133 | return msg_bits(m, 0, 25, 0xf); | |
134 | } | |
135 | ||
136 | static inline u32 msg_isdata(struct tipc_msg *m) | |
137 | { | |
a02cec21 | 138 | return msg_user(m) <= TIPC_CRITICAL_IMPORTANCE; |
b97bf3fd PL |
139 | } |
140 | ||
c4307285 | 141 | static inline void msg_set_user(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
142 | { |
143 | msg_set_bits(m, 0, 25, 0xf, n); | |
144 | } | |
145 | ||
d265fef6 AS |
146 | static inline u32 msg_importance(struct tipc_msg *m) |
147 | { | |
148 | return msg_bits(m, 0, 25, 0xf); | |
149 | } | |
150 | ||
c4307285 | 151 | static inline void msg_set_importance(struct tipc_msg *m, u32 i) |
b97bf3fd PL |
152 | { |
153 | msg_set_user(m, i); | |
154 | } | |
155 | ||
d265fef6 AS |
156 | static inline u32 msg_hdr_sz(struct tipc_msg *m) |
157 | { | |
158 | return msg_bits(m, 0, 21, 0xf) << 2; | |
159 | } | |
160 | ||
0e65967e | 161 | static inline void msg_set_hdr_sz(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
162 | { |
163 | msg_set_bits(m, 0, 21, 0xf, n>>2); | |
164 | } | |
165 | ||
d265fef6 AS |
166 | static inline u32 msg_size(struct tipc_msg *m) |
167 | { | |
168 | return msg_bits(m, 0, 0, 0x1ffff); | |
169 | } | |
170 | ||
171 | static inline u32 msg_data_sz(struct tipc_msg *m) | |
172 | { | |
173 | return msg_size(m) - msg_hdr_sz(m); | |
174 | } | |
175 | ||
c4307285 | 176 | static inline int msg_non_seq(struct tipc_msg *m) |
b97bf3fd PL |
177 | { |
178 | return msg_bits(m, 0, 20, 1); | |
179 | } | |
180 | ||
40aecb1b | 181 | static inline void msg_set_non_seq(struct tipc_msg *m, u32 n) |
b97bf3fd | 182 | { |
40aecb1b | 183 | msg_set_bits(m, 0, 20, 1, n); |
b97bf3fd PL |
184 | } |
185 | ||
c4307285 | 186 | static inline int msg_dest_droppable(struct tipc_msg *m) |
b97bf3fd PL |
187 | { |
188 | return msg_bits(m, 0, 19, 1); | |
189 | } | |
190 | ||
c4307285 | 191 | static inline void msg_set_dest_droppable(struct tipc_msg *m, u32 d) |
b97bf3fd PL |
192 | { |
193 | msg_set_bits(m, 0, 19, 1, d); | |
194 | } | |
195 | ||
c4307285 | 196 | static inline int msg_src_droppable(struct tipc_msg *m) |
b97bf3fd PL |
197 | { |
198 | return msg_bits(m, 0, 18, 1); | |
199 | } | |
200 | ||
c4307285 | 201 | static inline void msg_set_src_droppable(struct tipc_msg *m, u32 d) |
b97bf3fd PL |
202 | { |
203 | msg_set_bits(m, 0, 18, 1, d); | |
204 | } | |
205 | ||
206 | static inline void msg_set_size(struct tipc_msg *m, u32 sz) | |
207 | { | |
208 | m->hdr[0] = htonl((msg_word(m, 0) & ~0x1ffff) | sz); | |
209 | } | |
210 | ||
211 | ||
c4307285 | 212 | /* |
b97bf3fd PL |
213 | * Word 1 |
214 | */ | |
d265fef6 AS |
215 | static inline u32 msg_type(struct tipc_msg *m) |
216 | { | |
217 | return msg_bits(m, 1, 29, 0x7); | |
218 | } | |
219 | ||
c4307285 | 220 | static inline void msg_set_type(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
221 | { |
222 | msg_set_bits(m, 1, 29, 0x7, n); | |
223 | } | |
224 | ||
d265fef6 AS |
225 | static inline u32 msg_named(struct tipc_msg *m) |
226 | { | |
227 | return msg_type(m) == TIPC_NAMED_MSG; | |
228 | } | |
229 | ||
230 | static inline u32 msg_mcast(struct tipc_msg *m) | |
231 | { | |
232 | return msg_type(m) == TIPC_MCAST_MSG; | |
233 | } | |
234 | ||
235 | static inline u32 msg_connected(struct tipc_msg *m) | |
236 | { | |
237 | return msg_type(m) == TIPC_CONN_MSG; | |
238 | } | |
239 | ||
240 | static inline u32 msg_errcode(struct tipc_msg *m) | |
241 | { | |
242 | return msg_bits(m, 1, 25, 0xf); | |
243 | } | |
244 | ||
c4307285 | 245 | static inline void msg_set_errcode(struct tipc_msg *m, u32 err) |
b97bf3fd PL |
246 | { |
247 | msg_set_bits(m, 1, 25, 0xf, err); | |
248 | } | |
249 | ||
c4307285 | 250 | static inline u32 msg_reroute_cnt(struct tipc_msg *m) |
b97bf3fd PL |
251 | { |
252 | return msg_bits(m, 1, 21, 0xf); | |
253 | } | |
254 | ||
c4307285 | 255 | static inline void msg_incr_reroute_cnt(struct tipc_msg *m) |
b97bf3fd PL |
256 | { |
257 | msg_set_bits(m, 1, 21, 0xf, msg_reroute_cnt(m) + 1); | |
258 | } | |
259 | ||
c4307285 | 260 | static inline void msg_reset_reroute_cnt(struct tipc_msg *m) |
b97bf3fd PL |
261 | { |
262 | msg_set_bits(m, 1, 21, 0xf, 0); | |
263 | } | |
264 | ||
265 | static inline u32 msg_lookup_scope(struct tipc_msg *m) | |
266 | { | |
267 | return msg_bits(m, 1, 19, 0x3); | |
268 | } | |
269 | ||
c4307285 | 270 | static inline void msg_set_lookup_scope(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
271 | { |
272 | msg_set_bits(m, 1, 19, 0x3, n); | |
273 | } | |
274 | ||
b97bf3fd PL |
275 | static inline u32 msg_bcast_ack(struct tipc_msg *m) |
276 | { | |
277 | return msg_bits(m, 1, 0, 0xffff); | |
278 | } | |
279 | ||
c4307285 | 280 | static inline void msg_set_bcast_ack(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
281 | { |
282 | msg_set_bits(m, 1, 0, 0xffff, n); | |
283 | } | |
284 | ||
285 | ||
c4307285 | 286 | /* |
b97bf3fd PL |
287 | * Word 2 |
288 | */ | |
b97bf3fd PL |
289 | static inline u32 msg_ack(struct tipc_msg *m) |
290 | { | |
291 | return msg_bits(m, 2, 16, 0xffff); | |
292 | } | |
293 | ||
c4307285 | 294 | static inline void msg_set_ack(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
295 | { |
296 | msg_set_bits(m, 2, 16, 0xffff, n); | |
297 | } | |
298 | ||
299 | static inline u32 msg_seqno(struct tipc_msg *m) | |
300 | { | |
301 | return msg_bits(m, 2, 0, 0xffff); | |
302 | } | |
303 | ||
c4307285 | 304 | static inline void msg_set_seqno(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
305 | { |
306 | msg_set_bits(m, 2, 0, 0xffff, n); | |
307 | } | |
308 | ||
c4307285 | 309 | /* |
b97bf3fd PL |
310 | * Words 3-10 |
311 | */ | |
d265fef6 AS |
312 | static inline u32 msg_prevnode(struct tipc_msg *m) |
313 | { | |
314 | return msg_word(m, 3); | |
315 | } | |
316 | ||
c4307285 | 317 | static inline void msg_set_prevnode(struct tipc_msg *m, u32 a) |
b97bf3fd PL |
318 | { |
319 | msg_set_word(m, 3, a); | |
320 | } | |
321 | ||
d265fef6 AS |
322 | static inline u32 msg_origport(struct tipc_msg *m) |
323 | { | |
324 | return msg_word(m, 4); | |
325 | } | |
326 | ||
c4307285 | 327 | static inline void msg_set_origport(struct tipc_msg *m, u32 p) |
b97bf3fd PL |
328 | { |
329 | msg_set_word(m, 4, p); | |
330 | } | |
331 | ||
d265fef6 AS |
332 | static inline u32 msg_destport(struct tipc_msg *m) |
333 | { | |
334 | return msg_word(m, 5); | |
335 | } | |
336 | ||
c4307285 | 337 | static inline void msg_set_destport(struct tipc_msg *m, u32 p) |
b97bf3fd PL |
338 | { |
339 | msg_set_word(m, 5, p); | |
340 | } | |
341 | ||
d265fef6 AS |
342 | static inline u32 msg_mc_netid(struct tipc_msg *m) |
343 | { | |
344 | return msg_word(m, 5); | |
345 | } | |
346 | ||
c4307285 | 347 | static inline void msg_set_mc_netid(struct tipc_msg *m, u32 p) |
b97bf3fd PL |
348 | { |
349 | msg_set_word(m, 5, p); | |
350 | } | |
351 | ||
d265fef6 AS |
352 | static inline int msg_short(struct tipc_msg *m) |
353 | { | |
741d9eb7 | 354 | return msg_hdr_sz(m) == SHORT_H_SIZE; |
d265fef6 AS |
355 | } |
356 | ||
357 | static inline u32 msg_orignode(struct tipc_msg *m) | |
358 | { | |
359 | if (likely(msg_short(m))) | |
360 | return msg_prevnode(m); | |
361 | return msg_word(m, 6); | |
362 | } | |
363 | ||
c4307285 | 364 | static inline void msg_set_orignode(struct tipc_msg *m, u32 a) |
b97bf3fd PL |
365 | { |
366 | msg_set_word(m, 6, a); | |
367 | } | |
368 | ||
d265fef6 AS |
369 | static inline u32 msg_destnode(struct tipc_msg *m) |
370 | { | |
371 | return msg_word(m, 7); | |
372 | } | |
373 | ||
c4307285 | 374 | static inline void msg_set_destnode(struct tipc_msg *m, u32 a) |
b97bf3fd PL |
375 | { |
376 | msg_set_word(m, 7, a); | |
377 | } | |
378 | ||
d265fef6 AS |
379 | static inline u32 msg_nametype(struct tipc_msg *m) |
380 | { | |
381 | return msg_word(m, 8); | |
382 | } | |
383 | ||
c4307285 | 384 | static inline void msg_set_nametype(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
385 | { |
386 | msg_set_word(m, 8, n); | |
387 | } | |
388 | ||
d265fef6 AS |
389 | static inline u32 msg_nameinst(struct tipc_msg *m) |
390 | { | |
391 | return msg_word(m, 9); | |
392 | } | |
393 | ||
394 | static inline u32 msg_namelower(struct tipc_msg *m) | |
395 | { | |
396 | return msg_nameinst(m); | |
397 | } | |
398 | ||
c4307285 | 399 | static inline void msg_set_namelower(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
400 | { |
401 | msg_set_word(m, 9, n); | |
402 | } | |
403 | ||
c4307285 | 404 | static inline void msg_set_nameinst(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
405 | { |
406 | msg_set_namelower(m, n); | |
407 | } | |
408 | ||
d265fef6 AS |
409 | static inline u32 msg_nameupper(struct tipc_msg *m) |
410 | { | |
411 | return msg_word(m, 10); | |
412 | } | |
413 | ||
c4307285 | 414 | static inline void msg_set_nameupper(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
415 | { |
416 | msg_set_word(m, 10, n); | |
417 | } | |
418 | ||
d265fef6 AS |
419 | static inline unchar *msg_data(struct tipc_msg *m) |
420 | { | |
421 | return ((unchar *)m) + msg_hdr_sz(m); | |
422 | } | |
423 | ||
b97bf3fd PL |
424 | static inline struct tipc_msg *msg_get_wrapped(struct tipc_msg *m) |
425 | { | |
426 | return (struct tipc_msg *)msg_data(m); | |
427 | } | |
428 | ||
b97bf3fd | 429 | /* |
cc4c4353 AS |
430 | * Constants and routines used to read and write TIPC internal message headers |
431 | */ | |
b97bf3fd | 432 | |
c4307285 | 433 | /* |
cc4c4353 | 434 | * Internal message users |
b97bf3fd | 435 | */ |
b97bf3fd PL |
436 | #define BCAST_PROTOCOL 5 |
437 | #define MSG_BUNDLER 6 | |
438 | #define LINK_PROTOCOL 7 | |
439 | #define CONN_MANAGER 8 | |
51a8e4de | 440 | #define ROUTE_DISTRIBUTOR 9 /* obsoleted */ |
b97bf3fd PL |
441 | #define CHANGEOVER_PROTOCOL 10 |
442 | #define NAME_DISTRIBUTOR 11 | |
443 | #define MSG_FRAGMENTER 12 | |
444 | #define LINK_CONFIG 13 | |
50100a5e | 445 | #define SOCK_WAKEUP 14 /* pseudo user */ |
b97bf3fd | 446 | |
c4307285 | 447 | /* |
cc4c4353 | 448 | * Connection management protocol message types |
b97bf3fd | 449 | */ |
b97bf3fd PL |
450 | #define CONN_PROBE 0 |
451 | #define CONN_PROBE_REPLY 1 | |
452 | #define CONN_ACK 2 | |
453 | ||
c4307285 | 454 | /* |
cc4c4353 | 455 | * Name distributor message types |
b97bf3fd | 456 | */ |
b97bf3fd PL |
457 | #define PUBLICATION 0 |
458 | #define WITHDRAWAL 1 | |
459 | ||
92138d1f AS |
460 | /* |
461 | * Segmentation message types | |
462 | */ | |
92138d1f AS |
463 | #define FIRST_FRAGMENT 0 |
464 | #define FRAGMENT 1 | |
465 | #define LAST_FRAGMENT 2 | |
466 | ||
467 | /* | |
468 | * Link management protocol message types | |
469 | */ | |
92138d1f AS |
470 | #define STATE_MSG 0 |
471 | #define RESET_MSG 1 | |
472 | #define ACTIVATE_MSG 2 | |
473 | ||
474 | /* | |
475 | * Changeover tunnel message types | |
476 | */ | |
477 | #define DUPLICATE_MSG 0 | |
478 | #define ORIGINAL_MSG 1 | |
479 | ||
480 | /* | |
481 | * Config protocol message types | |
482 | */ | |
92138d1f AS |
483 | #define DSC_REQ_MSG 0 |
484 | #define DSC_RESP_MSG 1 | |
485 | ||
b97bf3fd | 486 | |
c4307285 | 487 | /* |
b97bf3fd PL |
488 | * Word 1 |
489 | */ | |
b97bf3fd PL |
490 | static inline u32 msg_seq_gap(struct tipc_msg *m) |
491 | { | |
bd784533 | 492 | return msg_bits(m, 1, 16, 0x1fff); |
b97bf3fd PL |
493 | } |
494 | ||
495 | static inline void msg_set_seq_gap(struct tipc_msg *m, u32 n) | |
496 | { | |
bd784533 | 497 | msg_set_bits(m, 1, 16, 0x1fff, n); |
b97bf3fd PL |
498 | } |
499 | ||
fc0eea69 AS |
500 | static inline u32 msg_node_sig(struct tipc_msg *m) |
501 | { | |
502 | return msg_bits(m, 1, 0, 0xffff); | |
503 | } | |
504 | ||
505 | static inline void msg_set_node_sig(struct tipc_msg *m, u32 n) | |
506 | { | |
507 | msg_set_bits(m, 1, 0, 0xffff, n); | |
508 | } | |
509 | ||
b97bf3fd | 510 | |
c4307285 | 511 | /* |
b97bf3fd PL |
512 | * Word 2 |
513 | */ | |
b97bf3fd PL |
514 | static inline u32 msg_dest_domain(struct tipc_msg *m) |
515 | { | |
516 | return msg_word(m, 2); | |
517 | } | |
518 | ||
c4307285 | 519 | static inline void msg_set_dest_domain(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
520 | { |
521 | msg_set_word(m, 2, n); | |
522 | } | |
523 | ||
524 | static inline u32 msg_bcgap_after(struct tipc_msg *m) | |
525 | { | |
526 | return msg_bits(m, 2, 16, 0xffff); | |
527 | } | |
528 | ||
529 | static inline void msg_set_bcgap_after(struct tipc_msg *m, u32 n) | |
530 | { | |
531 | msg_set_bits(m, 2, 16, 0xffff, n); | |
532 | } | |
533 | ||
534 | static inline u32 msg_bcgap_to(struct tipc_msg *m) | |
535 | { | |
536 | return msg_bits(m, 2, 0, 0xffff); | |
537 | } | |
538 | ||
c4307285 | 539 | static inline void msg_set_bcgap_to(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
540 | { |
541 | msg_set_bits(m, 2, 0, 0xffff, n); | |
542 | } | |
543 | ||
544 | ||
c4307285 | 545 | /* |
b97bf3fd PL |
546 | * Word 4 |
547 | */ | |
b97bf3fd PL |
548 | static inline u32 msg_last_bcast(struct tipc_msg *m) |
549 | { | |
550 | return msg_bits(m, 4, 16, 0xffff); | |
551 | } | |
552 | ||
553 | static inline void msg_set_last_bcast(struct tipc_msg *m, u32 n) | |
554 | { | |
555 | msg_set_bits(m, 4, 16, 0xffff, n); | |
556 | } | |
557 | ||
b97bf3fd PL |
558 | static inline void msg_set_fragm_no(struct tipc_msg *m, u32 n) |
559 | { | |
560 | msg_set_bits(m, 4, 16, 0xffff, n); | |
561 | } | |
562 | ||
563 | ||
564 | static inline u32 msg_next_sent(struct tipc_msg *m) | |
565 | { | |
566 | return msg_bits(m, 4, 0, 0xffff); | |
567 | } | |
568 | ||
569 | static inline void msg_set_next_sent(struct tipc_msg *m, u32 n) | |
570 | { | |
571 | msg_set_bits(m, 4, 0, 0xffff, n); | |
572 | } | |
573 | ||
b97bf3fd PL |
574 | static inline void msg_set_long_msgno(struct tipc_msg *m, u32 n) |
575 | { | |
576 | msg_set_bits(m, 4, 0, 0xffff, n); | |
577 | } | |
578 | ||
579 | static inline u32 msg_bc_netid(struct tipc_msg *m) | |
580 | { | |
581 | return msg_word(m, 4); | |
582 | } | |
583 | ||
584 | static inline void msg_set_bc_netid(struct tipc_msg *m, u32 id) | |
585 | { | |
586 | msg_set_word(m, 4, id); | |
587 | } | |
588 | ||
589 | static inline u32 msg_link_selector(struct tipc_msg *m) | |
590 | { | |
591 | return msg_bits(m, 4, 0, 1); | |
592 | } | |
593 | ||
594 | static inline void msg_set_link_selector(struct tipc_msg *m, u32 n) | |
595 | { | |
7eb878ed | 596 | msg_set_bits(m, 4, 0, 1, n); |
b97bf3fd PL |
597 | } |
598 | ||
c4307285 | 599 | /* |
b97bf3fd PL |
600 | * Word 5 |
601 | */ | |
b97bf3fd PL |
602 | static inline u32 msg_session(struct tipc_msg *m) |
603 | { | |
604 | return msg_bits(m, 5, 16, 0xffff); | |
605 | } | |
606 | ||
607 | static inline void msg_set_session(struct tipc_msg *m, u32 n) | |
608 | { | |
609 | msg_set_bits(m, 5, 16, 0xffff, n); | |
610 | } | |
611 | ||
612 | static inline u32 msg_probe(struct tipc_msg *m) | |
613 | { | |
614 | return msg_bits(m, 5, 0, 1); | |
615 | } | |
616 | ||
617 | static inline void msg_set_probe(struct tipc_msg *m, u32 val) | |
618 | { | |
7eb878ed | 619 | msg_set_bits(m, 5, 0, 1, val); |
b97bf3fd PL |
620 | } |
621 | ||
622 | static inline char msg_net_plane(struct tipc_msg *m) | |
623 | { | |
624 | return msg_bits(m, 5, 1, 7) + 'A'; | |
625 | } | |
626 | ||
627 | static inline void msg_set_net_plane(struct tipc_msg *m, char n) | |
628 | { | |
629 | msg_set_bits(m, 5, 1, 7, (n - 'A')); | |
630 | } | |
631 | ||
632 | static inline u32 msg_linkprio(struct tipc_msg *m) | |
633 | { | |
634 | return msg_bits(m, 5, 4, 0x1f); | |
635 | } | |
636 | ||
637 | static inline void msg_set_linkprio(struct tipc_msg *m, u32 n) | |
638 | { | |
639 | msg_set_bits(m, 5, 4, 0x1f, n); | |
640 | } | |
641 | ||
642 | static inline u32 msg_bearer_id(struct tipc_msg *m) | |
643 | { | |
644 | return msg_bits(m, 5, 9, 0x7); | |
645 | } | |
646 | ||
647 | static inline void msg_set_bearer_id(struct tipc_msg *m, u32 n) | |
648 | { | |
649 | msg_set_bits(m, 5, 9, 0x7, n); | |
650 | } | |
651 | ||
652 | static inline u32 msg_redundant_link(struct tipc_msg *m) | |
653 | { | |
654 | return msg_bits(m, 5, 12, 0x1); | |
655 | } | |
656 | ||
77f167fc | 657 | static inline void msg_set_redundant_link(struct tipc_msg *m, u32 r) |
b97bf3fd | 658 | { |
77f167fc | 659 | msg_set_bits(m, 5, 12, 0x1, r); |
b97bf3fd PL |
660 | } |
661 | ||
3d749a6a AS |
662 | static inline char *msg_media_addr(struct tipc_msg *m) |
663 | { | |
664 | return (char *)&m->hdr[TIPC_MEDIA_ADDR_OFFSET]; | |
665 | } | |
b97bf3fd | 666 | |
c4307285 | 667 | /* |
b97bf3fd PL |
668 | * Word 9 |
669 | */ | |
b97bf3fd PL |
670 | static inline u32 msg_msgcnt(struct tipc_msg *m) |
671 | { | |
672 | return msg_bits(m, 9, 16, 0xffff); | |
673 | } | |
674 | ||
675 | static inline void msg_set_msgcnt(struct tipc_msg *m, u32 n) | |
676 | { | |
677 | msg_set_bits(m, 9, 16, 0xffff, n); | |
678 | } | |
679 | ||
680 | static inline u32 msg_bcast_tag(struct tipc_msg *m) | |
681 | { | |
682 | return msg_bits(m, 9, 16, 0xffff); | |
683 | } | |
684 | ||
685 | static inline void msg_set_bcast_tag(struct tipc_msg *m, u32 n) | |
686 | { | |
687 | msg_set_bits(m, 9, 16, 0xffff, n); | |
688 | } | |
689 | ||
c4307285 | 690 | static inline u32 msg_max_pkt(struct tipc_msg *m) |
b97bf3fd | 691 | { |
a02cec21 | 692 | return msg_bits(m, 9, 16, 0xffff) * 4; |
b97bf3fd PL |
693 | } |
694 | ||
c4307285 | 695 | static inline void msg_set_max_pkt(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
696 | { |
697 | msg_set_bits(m, 9, 16, 0xffff, (n / 4)); | |
698 | } | |
699 | ||
700 | static inline u32 msg_link_tolerance(struct tipc_msg *m) | |
701 | { | |
702 | return msg_bits(m, 9, 0, 0xffff); | |
703 | } | |
704 | ||
705 | static inline void msg_set_link_tolerance(struct tipc_msg *m, u32 n) | |
706 | { | |
707 | msg_set_bits(m, 9, 0, 0xffff, n); | |
708 | } | |
709 | ||
4f1688b2 JPM |
710 | static inline u32 tipc_msg_tot_importance(struct tipc_msg *m) |
711 | { | |
712 | if ((msg_user(m) == MSG_FRAGMENTER) && (msg_type(m) == FIRST_FRAGMENT)) | |
713 | return msg_importance(msg_get_wrapped(m)); | |
714 | return msg_importance(m); | |
715 | } | |
716 | ||
717 | static inline u32 msg_tot_origport(struct tipc_msg *m) | |
718 | { | |
719 | if ((msg_user(m) == MSG_FRAGMENTER) && (msg_type(m) == FIRST_FRAGMENT)) | |
720 | return msg_origport(msg_get_wrapped(m)); | |
721 | return msg_origport(m); | |
722 | } | |
723 | ||
8db1bae3 JPM |
724 | bool tipc_msg_reverse(struct sk_buff *buf, u32 *dnode, int err); |
725 | ||
5a379074 JPM |
726 | int tipc_msg_eval(struct sk_buff *buf, u32 *dnode); |
727 | ||
ae8509c4 PG |
728 | void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type, u32 hsize, |
729 | u32 destnode); | |
4f1688b2 | 730 | |
1dd0bd2b JPM |
731 | struct sk_buff *tipc_msg_create(uint user, uint type, uint hdr_sz, |
732 | uint data_sz, u32 dnode, u32 onode, | |
733 | u32 dport, u32 oport, int errcode); | |
734 | ||
37e22164 JPM |
735 | int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf); |
736 | ||
58dc55f2 | 737 | bool tipc_msg_bundle(struct sk_buff_head *list, struct sk_buff *skb, u32 mtu); |
4f1688b2 | 738 | |
58dc55f2 YX |
739 | bool tipc_msg_make_bundle(struct sk_buff_head *list, struct sk_buff *skb, |
740 | u32 mtu, u32 dnode); | |
4f1688b2 | 741 | |
45dcc687 | 742 | int tipc_msg_build(struct tipc_msg *mhdr, struct msghdr *m, |
9fbfb8b1 | 743 | int offset, int dsz, int mtu , struct sk_buff **chain); |
067608e9 | 744 | |
078bec82 JPM |
745 | struct sk_buff *tipc_msg_reassemble(struct sk_buff *chain); |
746 | ||
b97bf3fd | 747 | #endif |