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 | ||
1da46568 | 40 | #include <linux/tipc.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 | ||
859fc7c0 YX |
80 | /** |
81 | * TIPC message buffer code | |
82 | * | |
83 | * TIPC message buffer headroom reserves space for the worst-case | |
84 | * link-level device header (in case the message is sent off-node). | |
85 | * | |
86 | * Note: Headroom should be a multiple of 4 to ensure the TIPC header fields | |
87 | * are word aligned for quicker access | |
88 | */ | |
89 | #define BUF_HEADROOM LL_MAX_HEADER | |
90 | ||
91 | struct tipc_skb_cb { | |
92 | void *handle; | |
93 | struct sk_buff *tail; | |
94 | bool deferred; | |
95 | bool wakeup_pending; | |
96 | bool bundling; | |
97 | u16 chain_sz; | |
98 | u16 chain_imp; | |
99 | }; | |
100 | ||
101 | #define TIPC_SKB_CB(__skb) ((struct tipc_skb_cb *)&((__skb)->cb[0])) | |
102 | ||
d265fef6 AS |
103 | struct tipc_msg { |
104 | __be32 hdr[15]; | |
105 | }; | |
c4307285 | 106 | |
859fc7c0 YX |
107 | static inline struct tipc_msg *buf_msg(struct sk_buff *skb) |
108 | { | |
109 | return (struct tipc_msg *)skb->data; | |
110 | } | |
111 | ||
d265fef6 AS |
112 | static inline u32 msg_word(struct tipc_msg *m, u32 pos) |
113 | { | |
114 | return ntohl(m->hdr[pos]); | |
115 | } | |
b97bf3fd PL |
116 | |
117 | static inline void msg_set_word(struct tipc_msg *m, u32 w, u32 val) | |
118 | { | |
119 | m->hdr[w] = htonl(val); | |
120 | } | |
121 | ||
d265fef6 AS |
122 | static inline u32 msg_bits(struct tipc_msg *m, u32 w, u32 pos, u32 mask) |
123 | { | |
124 | return (msg_word(m, w) >> pos) & mask; | |
125 | } | |
126 | ||
b97bf3fd PL |
127 | static inline void msg_set_bits(struct tipc_msg *m, u32 w, |
128 | u32 pos, u32 mask, u32 val) | |
129 | { | |
1f9eda7e | 130 | val = (val & mask) << pos; |
becf3da2 AV |
131 | mask = mask << pos; |
132 | m->hdr[w] &= ~htonl(mask); | |
133 | m->hdr[w] |= htonl(val); | |
b97bf3fd PL |
134 | } |
135 | ||
40aecb1b AS |
136 | static inline void msg_swap_words(struct tipc_msg *msg, u32 a, u32 b) |
137 | { | |
138 | u32 temp = msg->hdr[a]; | |
139 | ||
140 | msg->hdr[a] = msg->hdr[b]; | |
141 | msg->hdr[b] = temp; | |
142 | } | |
143 | ||
c4307285 | 144 | /* |
b97bf3fd PL |
145 | * Word 0 |
146 | */ | |
b97bf3fd PL |
147 | static inline u32 msg_version(struct tipc_msg *m) |
148 | { | |
149 | return msg_bits(m, 0, 29, 7); | |
150 | } | |
151 | ||
c4307285 | 152 | static inline void msg_set_version(struct tipc_msg *m) |
b97bf3fd | 153 | { |
37695420 | 154 | msg_set_bits(m, 0, 29, 7, TIPC_VERSION); |
b97bf3fd PL |
155 | } |
156 | ||
157 | static inline u32 msg_user(struct tipc_msg *m) | |
158 | { | |
159 | return msg_bits(m, 0, 25, 0xf); | |
160 | } | |
161 | ||
162 | static inline u32 msg_isdata(struct tipc_msg *m) | |
163 | { | |
a02cec21 | 164 | return msg_user(m) <= TIPC_CRITICAL_IMPORTANCE; |
b97bf3fd PL |
165 | } |
166 | ||
c4307285 | 167 | static inline void msg_set_user(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
168 | { |
169 | msg_set_bits(m, 0, 25, 0xf, n); | |
170 | } | |
171 | ||
d265fef6 AS |
172 | static inline u32 msg_importance(struct tipc_msg *m) |
173 | { | |
174 | return msg_bits(m, 0, 25, 0xf); | |
175 | } | |
176 | ||
c4307285 | 177 | static inline void msg_set_importance(struct tipc_msg *m, u32 i) |
b97bf3fd PL |
178 | { |
179 | msg_set_user(m, i); | |
180 | } | |
181 | ||
d265fef6 AS |
182 | static inline u32 msg_hdr_sz(struct tipc_msg *m) |
183 | { | |
184 | return msg_bits(m, 0, 21, 0xf) << 2; | |
185 | } | |
186 | ||
0e65967e | 187 | static inline void msg_set_hdr_sz(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
188 | { |
189 | msg_set_bits(m, 0, 21, 0xf, n>>2); | |
190 | } | |
191 | ||
d265fef6 AS |
192 | static inline u32 msg_size(struct tipc_msg *m) |
193 | { | |
194 | return msg_bits(m, 0, 0, 0x1ffff); | |
195 | } | |
196 | ||
197 | static inline u32 msg_data_sz(struct tipc_msg *m) | |
198 | { | |
199 | return msg_size(m) - msg_hdr_sz(m); | |
200 | } | |
201 | ||
c4307285 | 202 | static inline int msg_non_seq(struct tipc_msg *m) |
b97bf3fd PL |
203 | { |
204 | return msg_bits(m, 0, 20, 1); | |
205 | } | |
206 | ||
40aecb1b | 207 | static inline void msg_set_non_seq(struct tipc_msg *m, u32 n) |
b97bf3fd | 208 | { |
40aecb1b | 209 | msg_set_bits(m, 0, 20, 1, n); |
b97bf3fd PL |
210 | } |
211 | ||
c4307285 | 212 | static inline int msg_dest_droppable(struct tipc_msg *m) |
b97bf3fd PL |
213 | { |
214 | return msg_bits(m, 0, 19, 1); | |
215 | } | |
216 | ||
c4307285 | 217 | static inline void msg_set_dest_droppable(struct tipc_msg *m, u32 d) |
b97bf3fd PL |
218 | { |
219 | msg_set_bits(m, 0, 19, 1, d); | |
220 | } | |
221 | ||
c4307285 | 222 | static inline int msg_src_droppable(struct tipc_msg *m) |
b97bf3fd PL |
223 | { |
224 | return msg_bits(m, 0, 18, 1); | |
225 | } | |
226 | ||
c4307285 | 227 | static inline void msg_set_src_droppable(struct tipc_msg *m, u32 d) |
b97bf3fd PL |
228 | { |
229 | msg_set_bits(m, 0, 18, 1, d); | |
230 | } | |
231 | ||
232 | static inline void msg_set_size(struct tipc_msg *m, u32 sz) | |
233 | { | |
234 | m->hdr[0] = htonl((msg_word(m, 0) & ~0x1ffff) | sz); | |
235 | } | |
236 | ||
237 | ||
c4307285 | 238 | /* |
b97bf3fd PL |
239 | * Word 1 |
240 | */ | |
d265fef6 AS |
241 | static inline u32 msg_type(struct tipc_msg *m) |
242 | { | |
243 | return msg_bits(m, 1, 29, 0x7); | |
244 | } | |
245 | ||
c4307285 | 246 | static inline void msg_set_type(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
247 | { |
248 | msg_set_bits(m, 1, 29, 0x7, n); | |
249 | } | |
250 | ||
d265fef6 AS |
251 | static inline u32 msg_named(struct tipc_msg *m) |
252 | { | |
253 | return msg_type(m) == TIPC_NAMED_MSG; | |
254 | } | |
255 | ||
256 | static inline u32 msg_mcast(struct tipc_msg *m) | |
257 | { | |
258 | return msg_type(m) == TIPC_MCAST_MSG; | |
259 | } | |
260 | ||
261 | static inline u32 msg_connected(struct tipc_msg *m) | |
262 | { | |
263 | return msg_type(m) == TIPC_CONN_MSG; | |
264 | } | |
265 | ||
266 | static inline u32 msg_errcode(struct tipc_msg *m) | |
267 | { | |
268 | return msg_bits(m, 1, 25, 0xf); | |
269 | } | |
270 | ||
c4307285 | 271 | static inline void msg_set_errcode(struct tipc_msg *m, u32 err) |
b97bf3fd PL |
272 | { |
273 | msg_set_bits(m, 1, 25, 0xf, err); | |
274 | } | |
275 | ||
c4307285 | 276 | static inline u32 msg_reroute_cnt(struct tipc_msg *m) |
b97bf3fd PL |
277 | { |
278 | return msg_bits(m, 1, 21, 0xf); | |
279 | } | |
280 | ||
c4307285 | 281 | static inline void msg_incr_reroute_cnt(struct tipc_msg *m) |
b97bf3fd PL |
282 | { |
283 | msg_set_bits(m, 1, 21, 0xf, msg_reroute_cnt(m) + 1); | |
284 | } | |
285 | ||
c4307285 | 286 | static inline void msg_reset_reroute_cnt(struct tipc_msg *m) |
b97bf3fd PL |
287 | { |
288 | msg_set_bits(m, 1, 21, 0xf, 0); | |
289 | } | |
290 | ||
291 | static inline u32 msg_lookup_scope(struct tipc_msg *m) | |
292 | { | |
293 | return msg_bits(m, 1, 19, 0x3); | |
294 | } | |
295 | ||
c4307285 | 296 | static inline void msg_set_lookup_scope(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
297 | { |
298 | msg_set_bits(m, 1, 19, 0x3, n); | |
299 | } | |
300 | ||
b97bf3fd PL |
301 | static inline u32 msg_bcast_ack(struct tipc_msg *m) |
302 | { | |
303 | return msg_bits(m, 1, 0, 0xffff); | |
304 | } | |
305 | ||
c4307285 | 306 | static inline void msg_set_bcast_ack(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
307 | { |
308 | msg_set_bits(m, 1, 0, 0xffff, n); | |
309 | } | |
310 | ||
311 | ||
c4307285 | 312 | /* |
b97bf3fd PL |
313 | * Word 2 |
314 | */ | |
b97bf3fd PL |
315 | static inline u32 msg_ack(struct tipc_msg *m) |
316 | { | |
317 | return msg_bits(m, 2, 16, 0xffff); | |
318 | } | |
319 | ||
c4307285 | 320 | static inline void msg_set_ack(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
321 | { |
322 | msg_set_bits(m, 2, 16, 0xffff, n); | |
323 | } | |
324 | ||
325 | static inline u32 msg_seqno(struct tipc_msg *m) | |
326 | { | |
327 | return msg_bits(m, 2, 0, 0xffff); | |
328 | } | |
329 | ||
c4307285 | 330 | static inline void msg_set_seqno(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
331 | { |
332 | msg_set_bits(m, 2, 0, 0xffff, n); | |
333 | } | |
334 | ||
c4307285 | 335 | /* |
b97bf3fd PL |
336 | * Words 3-10 |
337 | */ | |
d265fef6 AS |
338 | static inline u32 msg_prevnode(struct tipc_msg *m) |
339 | { | |
340 | return msg_word(m, 3); | |
341 | } | |
342 | ||
c4307285 | 343 | static inline void msg_set_prevnode(struct tipc_msg *m, u32 a) |
b97bf3fd PL |
344 | { |
345 | msg_set_word(m, 3, a); | |
346 | } | |
347 | ||
d265fef6 AS |
348 | static inline u32 msg_origport(struct tipc_msg *m) |
349 | { | |
350 | return msg_word(m, 4); | |
351 | } | |
352 | ||
c4307285 | 353 | static inline void msg_set_origport(struct tipc_msg *m, u32 p) |
b97bf3fd PL |
354 | { |
355 | msg_set_word(m, 4, p); | |
356 | } | |
357 | ||
d265fef6 AS |
358 | static inline u32 msg_destport(struct tipc_msg *m) |
359 | { | |
360 | return msg_word(m, 5); | |
361 | } | |
362 | ||
c4307285 | 363 | static inline void msg_set_destport(struct tipc_msg *m, u32 p) |
b97bf3fd PL |
364 | { |
365 | msg_set_word(m, 5, p); | |
366 | } | |
367 | ||
d265fef6 AS |
368 | static inline u32 msg_mc_netid(struct tipc_msg *m) |
369 | { | |
370 | return msg_word(m, 5); | |
371 | } | |
372 | ||
c4307285 | 373 | static inline void msg_set_mc_netid(struct tipc_msg *m, u32 p) |
b97bf3fd PL |
374 | { |
375 | msg_set_word(m, 5, p); | |
376 | } | |
377 | ||
d265fef6 AS |
378 | static inline int msg_short(struct tipc_msg *m) |
379 | { | |
741d9eb7 | 380 | return msg_hdr_sz(m) == SHORT_H_SIZE; |
d265fef6 AS |
381 | } |
382 | ||
383 | static inline u32 msg_orignode(struct tipc_msg *m) | |
384 | { | |
385 | if (likely(msg_short(m))) | |
386 | return msg_prevnode(m); | |
387 | return msg_word(m, 6); | |
388 | } | |
389 | ||
c4307285 | 390 | static inline void msg_set_orignode(struct tipc_msg *m, u32 a) |
b97bf3fd PL |
391 | { |
392 | msg_set_word(m, 6, a); | |
393 | } | |
394 | ||
d265fef6 AS |
395 | static inline u32 msg_destnode(struct tipc_msg *m) |
396 | { | |
397 | return msg_word(m, 7); | |
398 | } | |
399 | ||
c4307285 | 400 | static inline void msg_set_destnode(struct tipc_msg *m, u32 a) |
b97bf3fd PL |
401 | { |
402 | msg_set_word(m, 7, a); | |
403 | } | |
404 | ||
d265fef6 AS |
405 | static inline u32 msg_nametype(struct tipc_msg *m) |
406 | { | |
407 | return msg_word(m, 8); | |
408 | } | |
409 | ||
c4307285 | 410 | static inline void msg_set_nametype(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
411 | { |
412 | msg_set_word(m, 8, n); | |
413 | } | |
414 | ||
d265fef6 AS |
415 | static inline u32 msg_nameinst(struct tipc_msg *m) |
416 | { | |
417 | return msg_word(m, 9); | |
418 | } | |
419 | ||
420 | static inline u32 msg_namelower(struct tipc_msg *m) | |
421 | { | |
422 | return msg_nameinst(m); | |
423 | } | |
424 | ||
c4307285 | 425 | static inline void msg_set_namelower(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
426 | { |
427 | msg_set_word(m, 9, n); | |
428 | } | |
429 | ||
c4307285 | 430 | static inline void msg_set_nameinst(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
431 | { |
432 | msg_set_namelower(m, n); | |
433 | } | |
434 | ||
d265fef6 AS |
435 | static inline u32 msg_nameupper(struct tipc_msg *m) |
436 | { | |
437 | return msg_word(m, 10); | |
438 | } | |
439 | ||
c4307285 | 440 | static inline void msg_set_nameupper(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
441 | { |
442 | msg_set_word(m, 10, n); | |
443 | } | |
444 | ||
d265fef6 AS |
445 | static inline unchar *msg_data(struct tipc_msg *m) |
446 | { | |
447 | return ((unchar *)m) + msg_hdr_sz(m); | |
448 | } | |
449 | ||
b97bf3fd PL |
450 | static inline struct tipc_msg *msg_get_wrapped(struct tipc_msg *m) |
451 | { | |
452 | return (struct tipc_msg *)msg_data(m); | |
453 | } | |
454 | ||
b97bf3fd | 455 | /* |
cc4c4353 AS |
456 | * Constants and routines used to read and write TIPC internal message headers |
457 | */ | |
b97bf3fd | 458 | |
c4307285 | 459 | /* |
cc4c4353 | 460 | * Internal message users |
b97bf3fd | 461 | */ |
b97bf3fd PL |
462 | #define BCAST_PROTOCOL 5 |
463 | #define MSG_BUNDLER 6 | |
464 | #define LINK_PROTOCOL 7 | |
465 | #define CONN_MANAGER 8 | |
51a8e4de | 466 | #define ROUTE_DISTRIBUTOR 9 /* obsoleted */ |
b97bf3fd PL |
467 | #define CHANGEOVER_PROTOCOL 10 |
468 | #define NAME_DISTRIBUTOR 11 | |
469 | #define MSG_FRAGMENTER 12 | |
470 | #define LINK_CONFIG 13 | |
50100a5e | 471 | #define SOCK_WAKEUP 14 /* pseudo user */ |
b97bf3fd | 472 | |
c4307285 | 473 | /* |
cc4c4353 | 474 | * Connection management protocol message types |
b97bf3fd | 475 | */ |
b97bf3fd PL |
476 | #define CONN_PROBE 0 |
477 | #define CONN_PROBE_REPLY 1 | |
478 | #define CONN_ACK 2 | |
479 | ||
c4307285 | 480 | /* |
cc4c4353 | 481 | * Name distributor message types |
b97bf3fd | 482 | */ |
b97bf3fd PL |
483 | #define PUBLICATION 0 |
484 | #define WITHDRAWAL 1 | |
485 | ||
92138d1f AS |
486 | /* |
487 | * Segmentation message types | |
488 | */ | |
92138d1f AS |
489 | #define FIRST_FRAGMENT 0 |
490 | #define FRAGMENT 1 | |
491 | #define LAST_FRAGMENT 2 | |
492 | ||
493 | /* | |
494 | * Link management protocol message types | |
495 | */ | |
92138d1f AS |
496 | #define STATE_MSG 0 |
497 | #define RESET_MSG 1 | |
498 | #define ACTIVATE_MSG 2 | |
499 | ||
500 | /* | |
501 | * Changeover tunnel message types | |
502 | */ | |
503 | #define DUPLICATE_MSG 0 | |
504 | #define ORIGINAL_MSG 1 | |
505 | ||
506 | /* | |
507 | * Config protocol message types | |
508 | */ | |
92138d1f AS |
509 | #define DSC_REQ_MSG 0 |
510 | #define DSC_RESP_MSG 1 | |
511 | ||
b97bf3fd | 512 | |
c4307285 | 513 | /* |
b97bf3fd PL |
514 | * Word 1 |
515 | */ | |
b97bf3fd PL |
516 | static inline u32 msg_seq_gap(struct tipc_msg *m) |
517 | { | |
bd784533 | 518 | return msg_bits(m, 1, 16, 0x1fff); |
b97bf3fd PL |
519 | } |
520 | ||
521 | static inline void msg_set_seq_gap(struct tipc_msg *m, u32 n) | |
522 | { | |
bd784533 | 523 | msg_set_bits(m, 1, 16, 0x1fff, n); |
b97bf3fd PL |
524 | } |
525 | ||
fc0eea69 AS |
526 | static inline u32 msg_node_sig(struct tipc_msg *m) |
527 | { | |
528 | return msg_bits(m, 1, 0, 0xffff); | |
529 | } | |
530 | ||
531 | static inline void msg_set_node_sig(struct tipc_msg *m, u32 n) | |
532 | { | |
533 | msg_set_bits(m, 1, 0, 0xffff, n); | |
534 | } | |
535 | ||
b97bf3fd | 536 | |
c4307285 | 537 | /* |
b97bf3fd PL |
538 | * Word 2 |
539 | */ | |
b97bf3fd PL |
540 | static inline u32 msg_dest_domain(struct tipc_msg *m) |
541 | { | |
542 | return msg_word(m, 2); | |
543 | } | |
544 | ||
c4307285 | 545 | static inline void msg_set_dest_domain(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
546 | { |
547 | msg_set_word(m, 2, n); | |
548 | } | |
549 | ||
550 | static inline u32 msg_bcgap_after(struct tipc_msg *m) | |
551 | { | |
552 | return msg_bits(m, 2, 16, 0xffff); | |
553 | } | |
554 | ||
555 | static inline void msg_set_bcgap_after(struct tipc_msg *m, u32 n) | |
556 | { | |
557 | msg_set_bits(m, 2, 16, 0xffff, n); | |
558 | } | |
559 | ||
560 | static inline u32 msg_bcgap_to(struct tipc_msg *m) | |
561 | { | |
562 | return msg_bits(m, 2, 0, 0xffff); | |
563 | } | |
564 | ||
c4307285 | 565 | static inline void msg_set_bcgap_to(struct tipc_msg *m, u32 n) |
b97bf3fd PL |
566 | { |
567 | msg_set_bits(m, 2, 0, 0xffff, n); | |
568 | } | |
569 | ||
570 | ||
c4307285 | 571 | /* |
b97bf3fd PL |
572 | * Word 4 |
573 | */ | |
b97bf3fd PL |
574 | static inline u32 msg_last_bcast(struct tipc_msg *m) |
575 | { | |
576 | return msg_bits(m, 4, 16, 0xffff); | |
577 | } | |
578 | ||
579 | static inline void msg_set_last_bcast(struct tipc_msg *m, u32 n) | |
580 | { | |
581 | msg_set_bits(m, 4, 16, 0xffff, n); | |
582 | } | |
583 | ||
b97bf3fd PL |
584 | static inline void msg_set_fragm_no(struct tipc_msg *m, u32 n) |
585 | { | |
586 | msg_set_bits(m, 4, 16, 0xffff, n); | |
587 | } | |
588 | ||
589 | ||
590 | static inline u32 msg_next_sent(struct tipc_msg *m) | |
591 | { | |
592 | return msg_bits(m, 4, 0, 0xffff); | |
593 | } | |
594 | ||
595 | static inline void msg_set_next_sent(struct tipc_msg *m, u32 n) | |
596 | { | |
597 | msg_set_bits(m, 4, 0, 0xffff, n); | |
598 | } | |
599 | ||
b97bf3fd PL |
600 | static inline void msg_set_long_msgno(struct tipc_msg *m, u32 n) |
601 | { | |
602 | msg_set_bits(m, 4, 0, 0xffff, n); | |
603 | } | |
604 | ||
605 | static inline u32 msg_bc_netid(struct tipc_msg *m) | |
606 | { | |
607 | return msg_word(m, 4); | |
608 | } | |
609 | ||
610 | static inline void msg_set_bc_netid(struct tipc_msg *m, u32 id) | |
611 | { | |
612 | msg_set_word(m, 4, id); | |
613 | } | |
614 | ||
615 | static inline u32 msg_link_selector(struct tipc_msg *m) | |
616 | { | |
617 | return msg_bits(m, 4, 0, 1); | |
618 | } | |
619 | ||
620 | static inline void msg_set_link_selector(struct tipc_msg *m, u32 n) | |
621 | { | |
7eb878ed | 622 | msg_set_bits(m, 4, 0, 1, n); |
b97bf3fd PL |
623 | } |
624 | ||
c4307285 | 625 | /* |
b97bf3fd PL |
626 | * Word 5 |
627 | */ | |
b97bf3fd PL |
628 | static inline u32 msg_session(struct tipc_msg *m) |
629 | { | |
630 | return msg_bits(m, 5, 16, 0xffff); | |
631 | } | |
632 | ||
633 | static inline void msg_set_session(struct tipc_msg *m, u32 n) | |
634 | { | |
635 | msg_set_bits(m, 5, 16, 0xffff, n); | |
636 | } | |
637 | ||
638 | static inline u32 msg_probe(struct tipc_msg *m) | |
639 | { | |
640 | return msg_bits(m, 5, 0, 1); | |
641 | } | |
642 | ||
643 | static inline void msg_set_probe(struct tipc_msg *m, u32 val) | |
644 | { | |
7eb878ed | 645 | msg_set_bits(m, 5, 0, 1, val); |
b97bf3fd PL |
646 | } |
647 | ||
648 | static inline char msg_net_plane(struct tipc_msg *m) | |
649 | { | |
650 | return msg_bits(m, 5, 1, 7) + 'A'; | |
651 | } | |
652 | ||
653 | static inline void msg_set_net_plane(struct tipc_msg *m, char n) | |
654 | { | |
655 | msg_set_bits(m, 5, 1, 7, (n - 'A')); | |
656 | } | |
657 | ||
658 | static inline u32 msg_linkprio(struct tipc_msg *m) | |
659 | { | |
660 | return msg_bits(m, 5, 4, 0x1f); | |
661 | } | |
662 | ||
663 | static inline void msg_set_linkprio(struct tipc_msg *m, u32 n) | |
664 | { | |
665 | msg_set_bits(m, 5, 4, 0x1f, n); | |
666 | } | |
667 | ||
668 | static inline u32 msg_bearer_id(struct tipc_msg *m) | |
669 | { | |
670 | return msg_bits(m, 5, 9, 0x7); | |
671 | } | |
672 | ||
673 | static inline void msg_set_bearer_id(struct tipc_msg *m, u32 n) | |
674 | { | |
675 | msg_set_bits(m, 5, 9, 0x7, n); | |
676 | } | |
677 | ||
678 | static inline u32 msg_redundant_link(struct tipc_msg *m) | |
679 | { | |
680 | return msg_bits(m, 5, 12, 0x1); | |
681 | } | |
682 | ||
77f167fc | 683 | static inline void msg_set_redundant_link(struct tipc_msg *m, u32 r) |
b97bf3fd | 684 | { |
77f167fc | 685 | msg_set_bits(m, 5, 12, 0x1, r); |
b97bf3fd PL |
686 | } |
687 | ||
3d749a6a AS |
688 | static inline char *msg_media_addr(struct tipc_msg *m) |
689 | { | |
690 | return (char *)&m->hdr[TIPC_MEDIA_ADDR_OFFSET]; | |
691 | } | |
b97bf3fd | 692 | |
c4307285 | 693 | /* |
b97bf3fd PL |
694 | * Word 9 |
695 | */ | |
b97bf3fd PL |
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 | ||
4f1688b2 JPM |
736 | static inline u32 tipc_msg_tot_importance(struct tipc_msg *m) |
737 | { | |
738 | if ((msg_user(m) == MSG_FRAGMENTER) && (msg_type(m) == FIRST_FRAGMENT)) | |
739 | return msg_importance(msg_get_wrapped(m)); | |
740 | return msg_importance(m); | |
741 | } | |
742 | ||
743 | static inline u32 msg_tot_origport(struct tipc_msg *m) | |
744 | { | |
745 | if ((msg_user(m) == MSG_FRAGMENTER) && (msg_type(m) == FIRST_FRAGMENT)) | |
746 | return msg_origport(msg_get_wrapped(m)); | |
747 | return msg_origport(m); | |
748 | } | |
749 | ||
859fc7c0 | 750 | struct sk_buff *tipc_buf_acquire(u32 size); |
c5898636 | 751 | bool tipc_msg_reverse(u32 own_addr, struct sk_buff *buf, u32 *dnode, |
34747539 | 752 | int err); |
4ac1c8d0 | 753 | int tipc_msg_eval(struct net *net, struct sk_buff *buf, u32 *dnode); |
c5898636 | 754 | void tipc_msg_init(u32 own_addr, struct tipc_msg *m, u32 user, u32 type, |
34747539 | 755 | u32 hsize, u32 destnode); |
c5898636 | 756 | struct sk_buff *tipc_msg_create(uint user, uint type, |
34747539 YX |
757 | uint hdr_sz, uint data_sz, u32 dnode, |
758 | u32 onode, u32 dport, u32 oport, int errcode); | |
37e22164 | 759 | int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf); |
58dc55f2 | 760 | bool tipc_msg_bundle(struct sk_buff_head *list, struct sk_buff *skb, u32 mtu); |
c5898636 | 761 | bool tipc_msg_make_bundle(struct sk_buff_head *list, |
34747539 | 762 | struct sk_buff *skb, u32 mtu, u32 dnode); |
c5898636 | 763 | int tipc_msg_build(struct tipc_msg *mhdr, struct msghdr *m, |
34747539 | 764 | int offset, int dsz, int mtu, struct sk_buff_head *list); |
a6ca1094 | 765 | struct sk_buff *tipc_msg_reassemble(struct sk_buff_head *list); |
078bec82 | 766 | |
b97bf3fd | 767 | #endif |