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 | ||
d265fef6 AS |
80 | struct tipc_msg { |
81 | __be32 hdr[15]; | |
82 | }; | |
c4307285 | 83 | |
d265fef6 AS |
84 | static inline u32 msg_word(struct tipc_msg *m, u32 pos) |
85 | { | |
86 | return ntohl(m->hdr[pos]); | |
87 | } | |
b97bf3fd PL |
88 | |
89 | static inline void msg_set_word(struct tipc_msg *m, u32 w, u32 val) | |
90 | { | |
91 | m->hdr[w] = htonl(val); | |
92 | } | |
93 | ||
d265fef6 AS |
94 | static inline u32 msg_bits(struct tipc_msg *m, u32 w, u32 pos, u32 mask) |
95 | { | |
96 | return (msg_word(m, w) >> pos) & mask; | |
97 | } | |
98 | ||
b97bf3fd PL |
99 | static inline void msg_set_bits(struct tipc_msg *m, u32 w, |
100 | u32 pos, u32 mask, u32 val) | |
101 | { | |
1f9eda7e | 102 | val = (val & mask) << pos; |
becf3da2 AV |
103 | mask = mask << pos; |
104 | m->hdr[w] &= ~htonl(mask); | |
105 | m->hdr[w] |= htonl(val); | |
b97bf3fd PL |
106 | } |
107 | ||
40aecb1b AS |
108 | static inline void msg_swap_words(struct tipc_msg *msg, u32 a, u32 b) |
109 | { | |
110 | u32 temp = msg->hdr[a]; | |
111 | ||
112 | msg->hdr[a] = msg->hdr[b]; | |
113 | msg->hdr[b] = temp; | |
114 | } | |
115 | ||
c4307285 | 116 | /* |
b97bf3fd PL |
117 | * Word 0 |
118 | */ | |
b97bf3fd PL |
119 | static inline u32 msg_version(struct tipc_msg *m) |
120 | { | |
121 | return msg_bits(m, 0, 29, 7); | |
122 | } | |
123 | ||
c4307285 | 124 | static inline void msg_set_version(struct tipc_msg *m) |
b97bf3fd | 125 | { |
37695420 | 126 | msg_set_bits(m, 0, 29, 7, TIPC_VERSION); |
b97bf3fd PL |
127 | } |
128 | ||
129 | static inline u32 msg_user(struct tipc_msg *m) | |
130 | { | |
131 | return msg_bits(m, 0, 25, 0xf); | |
132 | } | |
133 | ||
134 | static inline u32 msg_isdata(struct tipc_msg *m) | |
135 | { | |
a02cec21 | 136 | return msg_user(m) <= TIPC_CRITICAL_IMPORTANCE; |
b97bf3fd PL |
137 | } |
138 | ||
c4307285 | 139 | static inline void msg_set_user(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
140 | { |
141 | msg_set_bits(m, 0, 25, 0xf, n); | |
142 | } | |
143 | ||
d265fef6 AS |
144 | static inline u32 msg_importance(struct tipc_msg *m) |
145 | { | |
146 | return msg_bits(m, 0, 25, 0xf); | |
147 | } | |
148 | ||
c4307285 | 149 | static inline void msg_set_importance(struct tipc_msg *m, u32 i) |
b97bf3fd PL |
150 | { |
151 | msg_set_user(m, i); | |
152 | } | |
153 | ||
d265fef6 AS |
154 | static inline u32 msg_hdr_sz(struct tipc_msg *m) |
155 | { | |
156 | return msg_bits(m, 0, 21, 0xf) << 2; | |
157 | } | |
158 | ||
0e65967e | 159 | static inline void msg_set_hdr_sz(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
160 | { |
161 | msg_set_bits(m, 0, 21, 0xf, n>>2); | |
162 | } | |
163 | ||
d265fef6 AS |
164 | static inline u32 msg_size(struct tipc_msg *m) |
165 | { | |
166 | return msg_bits(m, 0, 0, 0x1ffff); | |
167 | } | |
168 | ||
169 | static inline u32 msg_data_sz(struct tipc_msg *m) | |
170 | { | |
171 | return msg_size(m) - msg_hdr_sz(m); | |
172 | } | |
173 | ||
c4307285 | 174 | static inline int msg_non_seq(struct tipc_msg *m) |
b97bf3fd PL |
175 | { |
176 | return msg_bits(m, 0, 20, 1); | |
177 | } | |
178 | ||
40aecb1b | 179 | static inline void msg_set_non_seq(struct tipc_msg *m, u32 n) |
b97bf3fd | 180 | { |
40aecb1b | 181 | msg_set_bits(m, 0, 20, 1, n); |
b97bf3fd PL |
182 | } |
183 | ||
c4307285 | 184 | static inline int msg_dest_droppable(struct tipc_msg *m) |
b97bf3fd PL |
185 | { |
186 | return msg_bits(m, 0, 19, 1); | |
187 | } | |
188 | ||
c4307285 | 189 | static inline void msg_set_dest_droppable(struct tipc_msg *m, u32 d) |
b97bf3fd PL |
190 | { |
191 | msg_set_bits(m, 0, 19, 1, d); | |
192 | } | |
193 | ||
c4307285 | 194 | static inline int msg_src_droppable(struct tipc_msg *m) |
b97bf3fd PL |
195 | { |
196 | return msg_bits(m, 0, 18, 1); | |
197 | } | |
198 | ||
c4307285 | 199 | static inline void msg_set_src_droppable(struct tipc_msg *m, u32 d) |
b97bf3fd PL |
200 | { |
201 | msg_set_bits(m, 0, 18, 1, d); | |
202 | } | |
203 | ||
204 | static inline void msg_set_size(struct tipc_msg *m, u32 sz) | |
205 | { | |
206 | m->hdr[0] = htonl((msg_word(m, 0) & ~0x1ffff) | sz); | |
207 | } | |
208 | ||
209 | ||
c4307285 | 210 | /* |
b97bf3fd PL |
211 | * Word 1 |
212 | */ | |
d265fef6 AS |
213 | static inline u32 msg_type(struct tipc_msg *m) |
214 | { | |
215 | return msg_bits(m, 1, 29, 0x7); | |
216 | } | |
217 | ||
c4307285 | 218 | static inline void msg_set_type(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
219 | { |
220 | msg_set_bits(m, 1, 29, 0x7, n); | |
221 | } | |
222 | ||
d265fef6 AS |
223 | static inline u32 msg_named(struct tipc_msg *m) |
224 | { | |
225 | return msg_type(m) == TIPC_NAMED_MSG; | |
226 | } | |
227 | ||
228 | static inline u32 msg_mcast(struct tipc_msg *m) | |
229 | { | |
230 | return msg_type(m) == TIPC_MCAST_MSG; | |
231 | } | |
232 | ||
233 | static inline u32 msg_connected(struct tipc_msg *m) | |
234 | { | |
235 | return msg_type(m) == TIPC_CONN_MSG; | |
236 | } | |
237 | ||
238 | static inline u32 msg_errcode(struct tipc_msg *m) | |
239 | { | |
240 | return msg_bits(m, 1, 25, 0xf); | |
241 | } | |
242 | ||
c4307285 | 243 | static inline void msg_set_errcode(struct tipc_msg *m, u32 err) |
b97bf3fd PL |
244 | { |
245 | msg_set_bits(m, 1, 25, 0xf, err); | |
246 | } | |
247 | ||
c4307285 | 248 | static inline u32 msg_reroute_cnt(struct tipc_msg *m) |
b97bf3fd PL |
249 | { |
250 | return msg_bits(m, 1, 21, 0xf); | |
251 | } | |
252 | ||
c4307285 | 253 | static inline void msg_incr_reroute_cnt(struct tipc_msg *m) |
b97bf3fd PL |
254 | { |
255 | msg_set_bits(m, 1, 21, 0xf, msg_reroute_cnt(m) + 1); | |
256 | } | |
257 | ||
c4307285 | 258 | static inline void msg_reset_reroute_cnt(struct tipc_msg *m) |
b97bf3fd PL |
259 | { |
260 | msg_set_bits(m, 1, 21, 0xf, 0); | |
261 | } | |
262 | ||
263 | static inline u32 msg_lookup_scope(struct tipc_msg *m) | |
264 | { | |
265 | return msg_bits(m, 1, 19, 0x3); | |
266 | } | |
267 | ||
c4307285 | 268 | static inline void msg_set_lookup_scope(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
269 | { |
270 | msg_set_bits(m, 1, 19, 0x3, n); | |
271 | } | |
272 | ||
b97bf3fd PL |
273 | static inline u32 msg_bcast_ack(struct tipc_msg *m) |
274 | { | |
275 | return msg_bits(m, 1, 0, 0xffff); | |
276 | } | |
277 | ||
c4307285 | 278 | static inline void msg_set_bcast_ack(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
279 | { |
280 | msg_set_bits(m, 1, 0, 0xffff, n); | |
281 | } | |
282 | ||
283 | ||
c4307285 | 284 | /* |
b97bf3fd PL |
285 | * Word 2 |
286 | */ | |
b97bf3fd PL |
287 | static inline u32 msg_ack(struct tipc_msg *m) |
288 | { | |
289 | return msg_bits(m, 2, 16, 0xffff); | |
290 | } | |
291 | ||
c4307285 | 292 | static inline void msg_set_ack(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
293 | { |
294 | msg_set_bits(m, 2, 16, 0xffff, n); | |
295 | } | |
296 | ||
297 | static inline u32 msg_seqno(struct tipc_msg *m) | |
298 | { | |
299 | return msg_bits(m, 2, 0, 0xffff); | |
300 | } | |
301 | ||
c4307285 | 302 | static inline void msg_set_seqno(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
303 | { |
304 | msg_set_bits(m, 2, 0, 0xffff, n); | |
305 | } | |
306 | ||
c4307285 | 307 | /* |
b97bf3fd PL |
308 | * Words 3-10 |
309 | */ | |
d265fef6 AS |
310 | static inline u32 msg_prevnode(struct tipc_msg *m) |
311 | { | |
312 | return msg_word(m, 3); | |
313 | } | |
314 | ||
c4307285 | 315 | static inline void msg_set_prevnode(struct tipc_msg *m, u32 a) |
b97bf3fd PL |
316 | { |
317 | msg_set_word(m, 3, a); | |
318 | } | |
319 | ||
d265fef6 AS |
320 | static inline u32 msg_origport(struct tipc_msg *m) |
321 | { | |
322 | return msg_word(m, 4); | |
323 | } | |
324 | ||
c4307285 | 325 | static inline void msg_set_origport(struct tipc_msg *m, u32 p) |
b97bf3fd PL |
326 | { |
327 | msg_set_word(m, 4, p); | |
328 | } | |
329 | ||
d265fef6 AS |
330 | static inline u32 msg_destport(struct tipc_msg *m) |
331 | { | |
332 | return msg_word(m, 5); | |
333 | } | |
334 | ||
c4307285 | 335 | static inline void msg_set_destport(struct tipc_msg *m, u32 p) |
b97bf3fd PL |
336 | { |
337 | msg_set_word(m, 5, p); | |
338 | } | |
339 | ||
d265fef6 AS |
340 | static inline u32 msg_mc_netid(struct tipc_msg *m) |
341 | { | |
342 | return msg_word(m, 5); | |
343 | } | |
344 | ||
c4307285 | 345 | static inline void msg_set_mc_netid(struct tipc_msg *m, u32 p) |
b97bf3fd PL |
346 | { |
347 | msg_set_word(m, 5, p); | |
348 | } | |
349 | ||
d265fef6 AS |
350 | static inline int msg_short(struct tipc_msg *m) |
351 | { | |
741d9eb7 | 352 | return msg_hdr_sz(m) == SHORT_H_SIZE; |
d265fef6 AS |
353 | } |
354 | ||
355 | static inline u32 msg_orignode(struct tipc_msg *m) | |
356 | { | |
357 | if (likely(msg_short(m))) | |
358 | return msg_prevnode(m); | |
359 | return msg_word(m, 6); | |
360 | } | |
361 | ||
c4307285 | 362 | static inline void msg_set_orignode(struct tipc_msg *m, u32 a) |
b97bf3fd PL |
363 | { |
364 | msg_set_word(m, 6, a); | |
365 | } | |
366 | ||
d265fef6 AS |
367 | static inline u32 msg_destnode(struct tipc_msg *m) |
368 | { | |
369 | return msg_word(m, 7); | |
370 | } | |
371 | ||
c4307285 | 372 | static inline void msg_set_destnode(struct tipc_msg *m, u32 a) |
b97bf3fd PL |
373 | { |
374 | msg_set_word(m, 7, a); | |
375 | } | |
376 | ||
d265fef6 AS |
377 | static inline u32 msg_nametype(struct tipc_msg *m) |
378 | { | |
379 | return msg_word(m, 8); | |
380 | } | |
381 | ||
c4307285 | 382 | static inline void msg_set_nametype(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
383 | { |
384 | msg_set_word(m, 8, n); | |
385 | } | |
386 | ||
d265fef6 AS |
387 | static inline u32 msg_nameinst(struct tipc_msg *m) |
388 | { | |
389 | return msg_word(m, 9); | |
390 | } | |
391 | ||
392 | static inline u32 msg_namelower(struct tipc_msg *m) | |
393 | { | |
394 | return msg_nameinst(m); | |
395 | } | |
396 | ||
c4307285 | 397 | static inline void msg_set_namelower(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
398 | { |
399 | msg_set_word(m, 9, n); | |
400 | } | |
401 | ||
c4307285 | 402 | static inline void msg_set_nameinst(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
403 | { |
404 | msg_set_namelower(m, n); | |
405 | } | |
406 | ||
d265fef6 AS |
407 | static inline u32 msg_nameupper(struct tipc_msg *m) |
408 | { | |
409 | return msg_word(m, 10); | |
410 | } | |
411 | ||
c4307285 | 412 | static inline void msg_set_nameupper(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
413 | { |
414 | msg_set_word(m, 10, n); | |
415 | } | |
416 | ||
d265fef6 AS |
417 | static inline unchar *msg_data(struct tipc_msg *m) |
418 | { | |
419 | return ((unchar *)m) + msg_hdr_sz(m); | |
420 | } | |
421 | ||
b97bf3fd PL |
422 | static inline struct tipc_msg *msg_get_wrapped(struct tipc_msg *m) |
423 | { | |
424 | return (struct tipc_msg *)msg_data(m); | |
425 | } | |
426 | ||
b97bf3fd | 427 | /* |
cc4c4353 AS |
428 | * Constants and routines used to read and write TIPC internal message headers |
429 | */ | |
b97bf3fd | 430 | |
c4307285 | 431 | /* |
cc4c4353 | 432 | * Internal message users |
b97bf3fd | 433 | */ |
b97bf3fd PL |
434 | #define BCAST_PROTOCOL 5 |
435 | #define MSG_BUNDLER 6 | |
436 | #define LINK_PROTOCOL 7 | |
437 | #define CONN_MANAGER 8 | |
51a8e4de | 438 | #define ROUTE_DISTRIBUTOR 9 /* obsoleted */ |
b97bf3fd PL |
439 | #define CHANGEOVER_PROTOCOL 10 |
440 | #define NAME_DISTRIBUTOR 11 | |
441 | #define MSG_FRAGMENTER 12 | |
442 | #define LINK_CONFIG 13 | |
50100a5e | 443 | #define SOCK_WAKEUP 14 /* pseudo user */ |
b97bf3fd | 444 | |
c4307285 | 445 | /* |
cc4c4353 | 446 | * Connection management protocol message types |
b97bf3fd | 447 | */ |
b97bf3fd PL |
448 | #define CONN_PROBE 0 |
449 | #define CONN_PROBE_REPLY 1 | |
450 | #define CONN_ACK 2 | |
451 | ||
c4307285 | 452 | /* |
cc4c4353 | 453 | * Name distributor message types |
b97bf3fd | 454 | */ |
b97bf3fd PL |
455 | #define PUBLICATION 0 |
456 | #define WITHDRAWAL 1 | |
457 | ||
92138d1f AS |
458 | /* |
459 | * Segmentation message types | |
460 | */ | |
92138d1f AS |
461 | #define FIRST_FRAGMENT 0 |
462 | #define FRAGMENT 1 | |
463 | #define LAST_FRAGMENT 2 | |
464 | ||
465 | /* | |
466 | * Link management protocol message types | |
467 | */ | |
92138d1f AS |
468 | #define STATE_MSG 0 |
469 | #define RESET_MSG 1 | |
470 | #define ACTIVATE_MSG 2 | |
471 | ||
472 | /* | |
473 | * Changeover tunnel message types | |
474 | */ | |
475 | #define DUPLICATE_MSG 0 | |
476 | #define ORIGINAL_MSG 1 | |
477 | ||
478 | /* | |
479 | * Config protocol message types | |
480 | */ | |
92138d1f AS |
481 | #define DSC_REQ_MSG 0 |
482 | #define DSC_RESP_MSG 1 | |
483 | ||
b97bf3fd | 484 | |
c4307285 | 485 | /* |
b97bf3fd PL |
486 | * Word 1 |
487 | */ | |
b97bf3fd PL |
488 | static inline u32 msg_seq_gap(struct tipc_msg *m) |
489 | { | |
bd784533 | 490 | return msg_bits(m, 1, 16, 0x1fff); |
b97bf3fd PL |
491 | } |
492 | ||
493 | static inline void msg_set_seq_gap(struct tipc_msg *m, u32 n) | |
494 | { | |
bd784533 | 495 | msg_set_bits(m, 1, 16, 0x1fff, n); |
b97bf3fd PL |
496 | } |
497 | ||
fc0eea69 AS |
498 | static inline u32 msg_node_sig(struct tipc_msg *m) |
499 | { | |
500 | return msg_bits(m, 1, 0, 0xffff); | |
501 | } | |
502 | ||
503 | static inline void msg_set_node_sig(struct tipc_msg *m, u32 n) | |
504 | { | |
505 | msg_set_bits(m, 1, 0, 0xffff, n); | |
506 | } | |
507 | ||
b97bf3fd | 508 | |
c4307285 | 509 | /* |
b97bf3fd PL |
510 | * Word 2 |
511 | */ | |
b97bf3fd PL |
512 | static inline u32 msg_dest_domain(struct tipc_msg *m) |
513 | { | |
514 | return msg_word(m, 2); | |
515 | } | |
516 | ||
c4307285 | 517 | static inline void msg_set_dest_domain(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
518 | { |
519 | msg_set_word(m, 2, n); | |
520 | } | |
521 | ||
522 | static inline u32 msg_bcgap_after(struct tipc_msg *m) | |
523 | { | |
524 | return msg_bits(m, 2, 16, 0xffff); | |
525 | } | |
526 | ||
527 | static inline void msg_set_bcgap_after(struct tipc_msg *m, u32 n) | |
528 | { | |
529 | msg_set_bits(m, 2, 16, 0xffff, n); | |
530 | } | |
531 | ||
532 | static inline u32 msg_bcgap_to(struct tipc_msg *m) | |
533 | { | |
534 | return msg_bits(m, 2, 0, 0xffff); | |
535 | } | |
536 | ||
c4307285 | 537 | static inline void msg_set_bcgap_to(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
538 | { |
539 | msg_set_bits(m, 2, 0, 0xffff, n); | |
540 | } | |
541 | ||
542 | ||
c4307285 | 543 | /* |
b97bf3fd PL |
544 | * Word 4 |
545 | */ | |
b97bf3fd PL |
546 | static inline u32 msg_last_bcast(struct tipc_msg *m) |
547 | { | |
548 | return msg_bits(m, 4, 16, 0xffff); | |
549 | } | |
550 | ||
551 | static inline void msg_set_last_bcast(struct tipc_msg *m, u32 n) | |
552 | { | |
553 | msg_set_bits(m, 4, 16, 0xffff, n); | |
554 | } | |
555 | ||
b97bf3fd PL |
556 | static inline void msg_set_fragm_no(struct tipc_msg *m, u32 n) |
557 | { | |
558 | msg_set_bits(m, 4, 16, 0xffff, n); | |
559 | } | |
560 | ||
561 | ||
562 | static inline u32 msg_next_sent(struct tipc_msg *m) | |
563 | { | |
564 | return msg_bits(m, 4, 0, 0xffff); | |
565 | } | |
566 | ||
567 | static inline void msg_set_next_sent(struct tipc_msg *m, u32 n) | |
568 | { | |
569 | msg_set_bits(m, 4, 0, 0xffff, n); | |
570 | } | |
571 | ||
b97bf3fd PL |
572 | static inline void msg_set_long_msgno(struct tipc_msg *m, u32 n) |
573 | { | |
574 | msg_set_bits(m, 4, 0, 0xffff, n); | |
575 | } | |
576 | ||
577 | static inline u32 msg_bc_netid(struct tipc_msg *m) | |
578 | { | |
579 | return msg_word(m, 4); | |
580 | } | |
581 | ||
582 | static inline void msg_set_bc_netid(struct tipc_msg *m, u32 id) | |
583 | { | |
584 | msg_set_word(m, 4, id); | |
585 | } | |
586 | ||
587 | static inline u32 msg_link_selector(struct tipc_msg *m) | |
588 | { | |
589 | return msg_bits(m, 4, 0, 1); | |
590 | } | |
591 | ||
592 | static inline void msg_set_link_selector(struct tipc_msg *m, u32 n) | |
593 | { | |
7eb878ed | 594 | msg_set_bits(m, 4, 0, 1, n); |
b97bf3fd PL |
595 | } |
596 | ||
c4307285 | 597 | /* |
b97bf3fd PL |
598 | * Word 5 |
599 | */ | |
b97bf3fd PL |
600 | static inline u32 msg_session(struct tipc_msg *m) |
601 | { | |
602 | return msg_bits(m, 5, 16, 0xffff); | |
603 | } | |
604 | ||
605 | static inline void msg_set_session(struct tipc_msg *m, u32 n) | |
606 | { | |
607 | msg_set_bits(m, 5, 16, 0xffff, n); | |
608 | } | |
609 | ||
610 | static inline u32 msg_probe(struct tipc_msg *m) | |
611 | { | |
612 | return msg_bits(m, 5, 0, 1); | |
613 | } | |
614 | ||
615 | static inline void msg_set_probe(struct tipc_msg *m, u32 val) | |
616 | { | |
7eb878ed | 617 | msg_set_bits(m, 5, 0, 1, val); |
b97bf3fd PL |
618 | } |
619 | ||
620 | static inline char msg_net_plane(struct tipc_msg *m) | |
621 | { | |
622 | return msg_bits(m, 5, 1, 7) + 'A'; | |
623 | } | |
624 | ||
625 | static inline void msg_set_net_plane(struct tipc_msg *m, char n) | |
626 | { | |
627 | msg_set_bits(m, 5, 1, 7, (n - 'A')); | |
628 | } | |
629 | ||
630 | static inline u32 msg_linkprio(struct tipc_msg *m) | |
631 | { | |
632 | return msg_bits(m, 5, 4, 0x1f); | |
633 | } | |
634 | ||
635 | static inline void msg_set_linkprio(struct tipc_msg *m, u32 n) | |
636 | { | |
637 | msg_set_bits(m, 5, 4, 0x1f, n); | |
638 | } | |
639 | ||
640 | static inline u32 msg_bearer_id(struct tipc_msg *m) | |
641 | { | |
642 | return msg_bits(m, 5, 9, 0x7); | |
643 | } | |
644 | ||
645 | static inline void msg_set_bearer_id(struct tipc_msg *m, u32 n) | |
646 | { | |
647 | msg_set_bits(m, 5, 9, 0x7, n); | |
648 | } | |
649 | ||
650 | static inline u32 msg_redundant_link(struct tipc_msg *m) | |
651 | { | |
652 | return msg_bits(m, 5, 12, 0x1); | |
653 | } | |
654 | ||
77f167fc | 655 | static inline void msg_set_redundant_link(struct tipc_msg *m, u32 r) |
b97bf3fd | 656 | { |
77f167fc | 657 | msg_set_bits(m, 5, 12, 0x1, r); |
b97bf3fd PL |
658 | } |
659 | ||
3d749a6a AS |
660 | static inline char *msg_media_addr(struct tipc_msg *m) |
661 | { | |
662 | return (char *)&m->hdr[TIPC_MEDIA_ADDR_OFFSET]; | |
663 | } | |
b97bf3fd | 664 | |
c4307285 | 665 | /* |
b97bf3fd PL |
666 | * Word 9 |
667 | */ | |
b97bf3fd PL |
668 | static inline u32 msg_msgcnt(struct tipc_msg *m) |
669 | { | |
670 | return msg_bits(m, 9, 16, 0xffff); | |
671 | } | |
672 | ||
673 | static inline void msg_set_msgcnt(struct tipc_msg *m, u32 n) | |
674 | { | |
675 | msg_set_bits(m, 9, 16, 0xffff, n); | |
676 | } | |
677 | ||
678 | static inline u32 msg_bcast_tag(struct tipc_msg *m) | |
679 | { | |
680 | return msg_bits(m, 9, 16, 0xffff); | |
681 | } | |
682 | ||
683 | static inline void msg_set_bcast_tag(struct tipc_msg *m, u32 n) | |
684 | { | |
685 | msg_set_bits(m, 9, 16, 0xffff, n); | |
686 | } | |
687 | ||
c4307285 | 688 | static inline u32 msg_max_pkt(struct tipc_msg *m) |
b97bf3fd | 689 | { |
a02cec21 | 690 | return msg_bits(m, 9, 16, 0xffff) * 4; |
b97bf3fd PL |
691 | } |
692 | ||
c4307285 | 693 | static inline void msg_set_max_pkt(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
694 | { |
695 | msg_set_bits(m, 9, 16, 0xffff, (n / 4)); | |
696 | } | |
697 | ||
698 | static inline u32 msg_link_tolerance(struct tipc_msg *m) | |
699 | { | |
700 | return msg_bits(m, 9, 0, 0xffff); | |
701 | } | |
702 | ||
703 | static inline void msg_set_link_tolerance(struct tipc_msg *m, u32 n) | |
704 | { | |
705 | msg_set_bits(m, 9, 0, 0xffff, n); | |
706 | } | |
707 | ||
4f1688b2 JPM |
708 | static inline u32 tipc_msg_tot_importance(struct tipc_msg *m) |
709 | { | |
710 | if ((msg_user(m) == MSG_FRAGMENTER) && (msg_type(m) == FIRST_FRAGMENT)) | |
711 | return msg_importance(msg_get_wrapped(m)); | |
712 | return msg_importance(m); | |
713 | } | |
714 | ||
715 | static inline u32 msg_tot_origport(struct tipc_msg *m) | |
716 | { | |
717 | if ((msg_user(m) == MSG_FRAGMENTER) && (msg_type(m) == FIRST_FRAGMENT)) | |
718 | return msg_origport(msg_get_wrapped(m)); | |
719 | return msg_origport(m); | |
720 | } | |
721 | ||
8db1bae3 JPM |
722 | bool tipc_msg_reverse(struct sk_buff *buf, u32 *dnode, int err); |
723 | ||
5a379074 JPM |
724 | int tipc_msg_eval(struct sk_buff *buf, u32 *dnode); |
725 | ||
ae8509c4 PG |
726 | void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type, u32 hsize, |
727 | u32 destnode); | |
4f1688b2 | 728 | |
1dd0bd2b JPM |
729 | struct sk_buff *tipc_msg_create(uint user, uint type, uint hdr_sz, |
730 | uint data_sz, u32 dnode, u32 onode, | |
731 | u32 dport, u32 oport, int errcode); | |
732 | ||
37e22164 JPM |
733 | int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf); |
734 | ||
58dc55f2 | 735 | bool tipc_msg_bundle(struct sk_buff_head *list, struct sk_buff *skb, u32 mtu); |
4f1688b2 | 736 | |
58dc55f2 YX |
737 | bool tipc_msg_make_bundle(struct sk_buff_head *list, struct sk_buff *skb, |
738 | u32 mtu, u32 dnode); | |
4f1688b2 | 739 | |
a6ca1094 YX |
740 | int tipc_msg_build(struct tipc_msg *mhdr, struct msghdr *m, int offset, |
741 | int dsz, int mtu, struct sk_buff_head *list); | |
067608e9 | 742 | |
a6ca1094 | 743 | struct sk_buff *tipc_msg_reassemble(struct sk_buff_head *list); |
078bec82 | 744 | |
b97bf3fd | 745 | #endif |