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1/* SCTP kernel implementation
2 * (C) Copyright IBM Corp. 2001, 2004
3 * Copyright (c) 1999-2000 Cisco, Inc.
4 * Copyright (c) 1999-2001 Motorola, Inc.
5 * Copyright (c) 2001 Intel Corp.
6 * Copyright (c) 2001 Nokia, Inc.
7 *
8 * This file is part of the SCTP kernel implementation
9 *
10 * These are the state tables for the SCTP state machine.
11 *
12 * This SCTP implementation is free software;
13 * you can redistribute it and/or modify it under the terms of
14 * the GNU General Public License as published by
15 * the Free Software Foundation; either version 2, or (at your option)
16 * any later version.
17 *
18 * This SCTP implementation is distributed in the hope that it
19 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
20 * ************************
21 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
22 * See the GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with GNU CC; see the file COPYING. If not, see
26 * <http://www.gnu.org/licenses/>.
27 *
28 * Please send any bug reports or fixes you make to the
29 * email address(es):
30 * lksctp developers <linux-sctp@vger.kernel.org>
31 *
32 * Written or modified by:
33 * La Monte H.P. Yarroll <piggy@acm.org>
34 * Karl Knutson <karl@athena.chicago.il.us>
35 * Jon Grimm <jgrimm@us.ibm.com>
36 * Hui Huang <hui.huang@nokia.com>
37 * Daisy Chang <daisyc@us.ibm.com>
38 * Ardelle Fan <ardelle.fan@intel.com>
39 * Sridhar Samudrala <sri@us.ibm.com>
40 */
41
42#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
43
44#include <linux/skbuff.h>
45#include <net/sctp/sctp.h>
46#include <net/sctp/sm.h>
47
48static const struct sctp_sm_table_entry
49primitive_event_table[SCTP_NUM_PRIMITIVE_TYPES][SCTP_STATE_NUM_STATES];
50static const struct sctp_sm_table_entry
51other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STATES];
52static const struct sctp_sm_table_entry
53timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][SCTP_STATE_NUM_STATES];
54
55static const struct sctp_sm_table_entry *sctp_chunk_event_lookup(
56 struct net *net,
57 enum sctp_cid cid,
58 enum sctp_state state);
59
60
61static const struct sctp_sm_table_entry bug = {
62 .fn = sctp_sf_bug,
63 .name = "sctp_sf_bug"
64};
65
66#define DO_LOOKUP(_max, _type, _table) \
67({ \
68 const struct sctp_sm_table_entry *rtn; \
69 \
70 if ((event_subtype._type > (_max))) { \
71 pr_warn("table %p possible attack: event %d exceeds max %d\n", \
72 _table, event_subtype._type, _max); \
73 rtn = &bug; \
74 } else \
75 rtn = &_table[event_subtype._type][(int)state]; \
76 \
77 rtn; \
78})
79
80const struct sctp_sm_table_entry *sctp_sm_lookup_event(
81 struct net *net,
82 enum sctp_event event_type,
83 enum sctp_state state,
84 union sctp_subtype event_subtype)
85{
86 switch (event_type) {
87 case SCTP_EVENT_T_CHUNK:
88 return sctp_chunk_event_lookup(net, event_subtype.chunk, state);
89 case SCTP_EVENT_T_TIMEOUT:
90 return DO_LOOKUP(SCTP_EVENT_TIMEOUT_MAX, timeout,
91 timeout_event_table);
92 case SCTP_EVENT_T_OTHER:
93 return DO_LOOKUP(SCTP_EVENT_OTHER_MAX, other,
94 other_event_table);
95 case SCTP_EVENT_T_PRIMITIVE:
96 return DO_LOOKUP(SCTP_EVENT_PRIMITIVE_MAX, primitive,
97 primitive_event_table);
98 default:
99 /* Yikes! We got an illegal event type. */
100 return &bug;
101 }
102}
103
104#define TYPE_SCTP_FUNC(func) {.fn = func, .name = #func}
105
106#define TYPE_SCTP_DATA { \
107 /* SCTP_STATE_CLOSED */ \
108 TYPE_SCTP_FUNC(sctp_sf_ootb), \
109 /* SCTP_STATE_COOKIE_WAIT */ \
110 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
111 /* SCTP_STATE_COOKIE_ECHOED */ \
112 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
113 /* SCTP_STATE_ESTABLISHED */ \
114 TYPE_SCTP_FUNC(sctp_sf_eat_data_6_2), \
115 /* SCTP_STATE_SHUTDOWN_PENDING */ \
116 TYPE_SCTP_FUNC(sctp_sf_eat_data_6_2), \
117 /* SCTP_STATE_SHUTDOWN_SENT */ \
118 TYPE_SCTP_FUNC(sctp_sf_eat_data_fast_4_4), \
119 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
120 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
121 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
122 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
123} /* TYPE_SCTP_DATA */
124
125#define TYPE_SCTP_INIT { \
126 /* SCTP_STATE_CLOSED */ \
127 TYPE_SCTP_FUNC(sctp_sf_do_5_1B_init), \
128 /* SCTP_STATE_COOKIE_WAIT */ \
129 TYPE_SCTP_FUNC(sctp_sf_do_5_2_1_siminit), \
130 /* SCTP_STATE_COOKIE_ECHOED */ \
131 TYPE_SCTP_FUNC(sctp_sf_do_5_2_1_siminit), \
132 /* SCTP_STATE_ESTABLISHED */ \
133 TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
134 /* SCTP_STATE_SHUTDOWN_PENDING */ \
135 TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
136 /* SCTP_STATE_SHUTDOWN_SENT */ \
137 TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
138 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
139 TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
140 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
141 TYPE_SCTP_FUNC(sctp_sf_do_9_2_reshutack), \
142} /* TYPE_SCTP_INIT */
143
144#define TYPE_SCTP_INIT_ACK { \
145 /* SCTP_STATE_CLOSED */ \
146 TYPE_SCTP_FUNC(sctp_sf_do_5_2_3_initack), \
147 /* SCTP_STATE_COOKIE_WAIT */ \
148 TYPE_SCTP_FUNC(sctp_sf_do_5_1C_ack), \
149 /* SCTP_STATE_COOKIE_ECHOED */ \
150 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
151 /* SCTP_STATE_ESTABLISHED */ \
152 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
153 /* SCTP_STATE_SHUTDOWN_PENDING */ \
154 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
155 /* SCTP_STATE_SHUTDOWN_SENT */ \
156 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
157 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
158 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
159 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
160 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
161} /* TYPE_SCTP_INIT_ACK */
162
163#define TYPE_SCTP_SACK { \
164 /* SCTP_STATE_CLOSED */ \
165 TYPE_SCTP_FUNC(sctp_sf_ootb), \
166 /* SCTP_STATE_COOKIE_WAIT */ \
167 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
168 /* SCTP_STATE_COOKIE_ECHOED */ \
169 TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
170 /* SCTP_STATE_ESTABLISHED */ \
171 TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
172 /* SCTP_STATE_SHUTDOWN_PENDING */ \
173 TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
174 /* SCTP_STATE_SHUTDOWN_SENT */ \
175 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
176 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
177 TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
178 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
179 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
180} /* TYPE_SCTP_SACK */
181
182#define TYPE_SCTP_HEARTBEAT { \
183 /* SCTP_STATE_CLOSED */ \
184 TYPE_SCTP_FUNC(sctp_sf_ootb), \
185 /* SCTP_STATE_COOKIE_WAIT */ \
186 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
187 /* SCTP_STATE_COOKIE_ECHOED */ \
188 TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
189 /* SCTP_STATE_ESTABLISHED */ \
190 TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
191 /* SCTP_STATE_SHUTDOWN_PENDING */ \
192 TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
193 /* SCTP_STATE_SHUTDOWN_SENT */ \
194 TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
195 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
196 TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
197 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
198 /* This should not happen, but we are nice. */ \
199 TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
200} /* TYPE_SCTP_HEARTBEAT */
201
202#define TYPE_SCTP_HEARTBEAT_ACK { \
203 /* SCTP_STATE_CLOSED */ \
204 TYPE_SCTP_FUNC(sctp_sf_ootb), \
205 /* SCTP_STATE_COOKIE_WAIT */ \
206 TYPE_SCTP_FUNC(sctp_sf_violation), \
207 /* SCTP_STATE_COOKIE_ECHOED */ \
208 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
209 /* SCTP_STATE_ESTABLISHED */ \
210 TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
211 /* SCTP_STATE_SHUTDOWN_PENDING */ \
212 TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
213 /* SCTP_STATE_SHUTDOWN_SENT */ \
214 TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
215 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
216 TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
217 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
218 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
219} /* TYPE_SCTP_HEARTBEAT_ACK */
220
221#define TYPE_SCTP_ABORT { \
222 /* SCTP_STATE_CLOSED */ \
223 TYPE_SCTP_FUNC(sctp_sf_pdiscard), \
224 /* SCTP_STATE_COOKIE_WAIT */ \
225 TYPE_SCTP_FUNC(sctp_sf_cookie_wait_abort), \
226 /* SCTP_STATE_COOKIE_ECHOED */ \
227 TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_abort), \
228 /* SCTP_STATE_ESTABLISHED */ \
229 TYPE_SCTP_FUNC(sctp_sf_do_9_1_abort), \
230 /* SCTP_STATE_SHUTDOWN_PENDING */ \
231 TYPE_SCTP_FUNC(sctp_sf_shutdown_pending_abort), \
232 /* SCTP_STATE_SHUTDOWN_SENT */ \
233 TYPE_SCTP_FUNC(sctp_sf_shutdown_sent_abort), \
234 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
235 TYPE_SCTP_FUNC(sctp_sf_do_9_1_abort), \
236 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
237 TYPE_SCTP_FUNC(sctp_sf_shutdown_ack_sent_abort), \
238} /* TYPE_SCTP_ABORT */
239
240#define TYPE_SCTP_SHUTDOWN { \
241 /* SCTP_STATE_CLOSED */ \
242 TYPE_SCTP_FUNC(sctp_sf_ootb), \
243 /* SCTP_STATE_COOKIE_WAIT */ \
244 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
245 /* SCTP_STATE_COOKIE_ECHOED */ \
246 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
247 /* SCTP_STATE_ESTABLISHED */ \
248 TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown), \
249 /* SCTP_STATE_SHUTDOWN_PENDING */ \
250 TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown), \
251 /* SCTP_STATE_SHUTDOWN_SENT */ \
252 TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown_ack), \
253 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
254 TYPE_SCTP_FUNC(sctp_sf_do_9_2_shut_ctsn), \
255 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
256 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
257} /* TYPE_SCTP_SHUTDOWN */
258
259#define TYPE_SCTP_SHUTDOWN_ACK { \
260 /* SCTP_STATE_CLOSED */ \
261 TYPE_SCTP_FUNC(sctp_sf_ootb), \
262 /* SCTP_STATE_COOKIE_WAIT */ \
263 TYPE_SCTP_FUNC(sctp_sf_do_8_5_1_E_sa), \
264 /* SCTP_STATE_COOKIE_ECHOED */ \
265 TYPE_SCTP_FUNC(sctp_sf_do_8_5_1_E_sa), \
266 /* SCTP_STATE_ESTABLISHED */ \
267 TYPE_SCTP_FUNC(sctp_sf_violation), \
268 /* SCTP_STATE_SHUTDOWN_PENDING */ \
269 TYPE_SCTP_FUNC(sctp_sf_violation), \
270 /* SCTP_STATE_SHUTDOWN_SENT */ \
271 TYPE_SCTP_FUNC(sctp_sf_do_9_2_final), \
272 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
273 TYPE_SCTP_FUNC(sctp_sf_violation), \
274 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
275 TYPE_SCTP_FUNC(sctp_sf_do_9_2_final), \
276} /* TYPE_SCTP_SHUTDOWN_ACK */
277
278#define TYPE_SCTP_ERROR { \
279 /* SCTP_STATE_CLOSED */ \
280 TYPE_SCTP_FUNC(sctp_sf_ootb), \
281 /* SCTP_STATE_COOKIE_WAIT */ \
282 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
283 /* SCTP_STATE_COOKIE_ECHOED */ \
284 TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_err), \
285 /* SCTP_STATE_ESTABLISHED */ \
286 TYPE_SCTP_FUNC(sctp_sf_operr_notify), \
287 /* SCTP_STATE_SHUTDOWN_PENDING */ \
288 TYPE_SCTP_FUNC(sctp_sf_operr_notify), \
289 /* SCTP_STATE_SHUTDOWN_SENT */ \
290 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
291 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
292 TYPE_SCTP_FUNC(sctp_sf_operr_notify), \
293 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
294 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
295} /* TYPE_SCTP_ERROR */
296
297#define TYPE_SCTP_COOKIE_ECHO { \
298 /* SCTP_STATE_CLOSED */ \
299 TYPE_SCTP_FUNC(sctp_sf_do_5_1D_ce), \
300 /* SCTP_STATE_COOKIE_WAIT */ \
301 TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
302 /* SCTP_STATE_COOKIE_ECHOED */ \
303 TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
304 /* SCTP_STATE_ESTABLISHED */ \
305 TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
306 /* SCTP_STATE_SHUTDOWN_PENDING */ \
307 TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
308 /* SCTP_STATE_SHUTDOWN_SENT */ \
309 TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
310 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
311 TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
312 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
313 TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
314} /* TYPE_SCTP_COOKIE_ECHO */
315
316#define TYPE_SCTP_COOKIE_ACK { \
317 /* SCTP_STATE_CLOSED */ \
318 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
319 /* SCTP_STATE_COOKIE_WAIT */ \
320 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
321 /* SCTP_STATE_COOKIE_ECHOED */ \
322 TYPE_SCTP_FUNC(sctp_sf_do_5_1E_ca), \
323 /* SCTP_STATE_ESTABLISHED */ \
324 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
325 /* SCTP_STATE_SHUTDOWN_PENDING */ \
326 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
327 /* SCTP_STATE_SHUTDOWN_SENT */ \
328 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
329 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
330 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
331 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
332 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
333} /* TYPE_SCTP_COOKIE_ACK */
334
335#define TYPE_SCTP_ECN_ECNE { \
336 /* SCTP_STATE_CLOSED */ \
337 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
338 /* SCTP_STATE_COOKIE_WAIT */ \
339 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
340 /* SCTP_STATE_COOKIE_ECHOED */ \
341 TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
342 /* SCTP_STATE_ESTABLISHED */ \
343 TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
344 /* SCTP_STATE_SHUTDOWN_PENDING */ \
345 TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
346 /* SCTP_STATE_SHUTDOWN_SENT */ \
347 TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
348 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
349 TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
350 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
351 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
352} /* TYPE_SCTP_ECN_ECNE */
353
354#define TYPE_SCTP_ECN_CWR { \
355 /* SCTP_STATE_CLOSED */ \
356 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
357 /* SCTP_STATE_COOKIE_WAIT */ \
358 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
359 /* SCTP_STATE_COOKIE_ECHOED */ \
360 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
361 /* SCTP_STATE_ESTABLISHED */ \
362 TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \
363 /* SCTP_STATE_SHUTDOWN_PENDING */ \
364 TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \
365 /* SCTP_STATE_SHUTDOWN_SENT */ \
366 TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \
367 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
368 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
369 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
370 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
371} /* TYPE_SCTP_ECN_CWR */
372
373#define TYPE_SCTP_SHUTDOWN_COMPLETE { \
374 /* SCTP_STATE_CLOSED */ \
375 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
376 /* SCTP_STATE_COOKIE_WAIT */ \
377 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
378 /* SCTP_STATE_COOKIE_ECHOED */ \
379 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
380 /* SCTP_STATE_ESTABLISHED */ \
381 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
382 /* SCTP_STATE_SHUTDOWN_PENDING */ \
383 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
384 /* SCTP_STATE_SHUTDOWN_SENT */ \
385 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
386 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
387 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
388 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
389 TYPE_SCTP_FUNC(sctp_sf_do_4_C), \
390} /* TYPE_SCTP_SHUTDOWN_COMPLETE */
391
392/* The primary index for this table is the chunk type.
393 * The secondary index for this table is the state.
394 *
395 * For base protocol (RFC 2960).
396 */
397static const struct sctp_sm_table_entry
398chunk_event_table[SCTP_NUM_BASE_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
399 TYPE_SCTP_DATA,
400 TYPE_SCTP_INIT,
401 TYPE_SCTP_INIT_ACK,
402 TYPE_SCTP_SACK,
403 TYPE_SCTP_HEARTBEAT,
404 TYPE_SCTP_HEARTBEAT_ACK,
405 TYPE_SCTP_ABORT,
406 TYPE_SCTP_SHUTDOWN,
407 TYPE_SCTP_SHUTDOWN_ACK,
408 TYPE_SCTP_ERROR,
409 TYPE_SCTP_COOKIE_ECHO,
410 TYPE_SCTP_COOKIE_ACK,
411 TYPE_SCTP_ECN_ECNE,
412 TYPE_SCTP_ECN_CWR,
413 TYPE_SCTP_SHUTDOWN_COMPLETE,
414}; /* state_fn_t chunk_event_table[][] */
415
416#define TYPE_SCTP_ASCONF { \
417 /* SCTP_STATE_CLOSED */ \
418 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
419 /* SCTP_STATE_COOKIE_WAIT */ \
420 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
421 /* SCTP_STATE_COOKIE_ECHOED */ \
422 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
423 /* SCTP_STATE_ESTABLISHED */ \
424 TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
425 /* SCTP_STATE_SHUTDOWN_PENDING */ \
426 TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
427 /* SCTP_STATE_SHUTDOWN_SENT */ \
428 TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
429 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
430 TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
431 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
432 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
433} /* TYPE_SCTP_ASCONF */
434
435#define TYPE_SCTP_ASCONF_ACK { \
436 /* SCTP_STATE_CLOSED */ \
437 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
438 /* SCTP_STATE_COOKIE_WAIT */ \
439 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
440 /* SCTP_STATE_COOKIE_ECHOED */ \
441 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
442 /* SCTP_STATE_ESTABLISHED */ \
443 TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
444 /* SCTP_STATE_SHUTDOWN_PENDING */ \
445 TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
446 /* SCTP_STATE_SHUTDOWN_SENT */ \
447 TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
448 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
449 TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
450 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
451 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
452} /* TYPE_SCTP_ASCONF_ACK */
453
454/* The primary index for this table is the chunk type.
455 * The secondary index for this table is the state.
456 */
457static const struct sctp_sm_table_entry
458addip_chunk_event_table[SCTP_NUM_ADDIP_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
459 TYPE_SCTP_ASCONF,
460 TYPE_SCTP_ASCONF_ACK,
461}; /*state_fn_t addip_chunk_event_table[][] */
462
463#define TYPE_SCTP_FWD_TSN { \
464 /* SCTP_STATE_CLOSED */ \
465 TYPE_SCTP_FUNC(sctp_sf_ootb), \
466 /* SCTP_STATE_COOKIE_WAIT */ \
467 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
468 /* SCTP_STATE_COOKIE_ECHOED */ \
469 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
470 /* SCTP_STATE_ESTABLISHED */ \
471 TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn), \
472 /* SCTP_STATE_SHUTDOWN_PENDING */ \
473 TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn), \
474 /* SCTP_STATE_SHUTDOWN_SENT */ \
475 TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn_fast), \
476 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
477 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
478 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
479 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
480} /* TYPE_SCTP_FWD_TSN */
481
482/* The primary index for this table is the chunk type.
483 * The secondary index for this table is the state.
484 */
485static const struct sctp_sm_table_entry
486prsctp_chunk_event_table[SCTP_NUM_PRSCTP_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
487 TYPE_SCTP_FWD_TSN,
488}; /*state_fn_t prsctp_chunk_event_table[][] */
489
490#define TYPE_SCTP_RECONF { \
491 /* SCTP_STATE_CLOSED */ \
492 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
493 /* SCTP_STATE_COOKIE_WAIT */ \
494 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
495 /* SCTP_STATE_COOKIE_ECHOED */ \
496 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
497 /* SCTP_STATE_ESTABLISHED */ \
498 TYPE_SCTP_FUNC(sctp_sf_do_reconf), \
499 /* SCTP_STATE_SHUTDOWN_PENDING */ \
500 TYPE_SCTP_FUNC(sctp_sf_do_reconf), \
501 /* SCTP_STATE_SHUTDOWN_SENT */ \
502 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
503 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
504 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
505 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
506 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
507} /* TYPE_SCTP_RECONF */
508
509/* The primary index for this table is the chunk type.
510 * The secondary index for this table is the state.
511 */
512static const struct sctp_sm_table_entry
513reconf_chunk_event_table[SCTP_NUM_RECONF_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
514 TYPE_SCTP_RECONF,
515}; /*state_fn_t reconf_chunk_event_table[][] */
516
517#define TYPE_SCTP_AUTH { \
518 /* SCTP_STATE_CLOSED */ \
519 TYPE_SCTP_FUNC(sctp_sf_ootb), \
520 /* SCTP_STATE_COOKIE_WAIT */ \
521 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
522 /* SCTP_STATE_COOKIE_ECHOED */ \
523 TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
524 /* SCTP_STATE_ESTABLISHED */ \
525 TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
526 /* SCTP_STATE_SHUTDOWN_PENDING */ \
527 TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
528 /* SCTP_STATE_SHUTDOWN_SENT */ \
529 TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
530 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
531 TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
532 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
533 TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
534} /* TYPE_SCTP_AUTH */
535
536/* The primary index for this table is the chunk type.
537 * The secondary index for this table is the state.
538 */
539static const struct sctp_sm_table_entry
540auth_chunk_event_table[SCTP_NUM_AUTH_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
541 TYPE_SCTP_AUTH,
542}; /*state_fn_t auth_chunk_event_table[][] */
543
544static const struct sctp_sm_table_entry
545chunk_event_table_unknown[SCTP_STATE_NUM_STATES] = {
546 /* SCTP_STATE_CLOSED */
547 TYPE_SCTP_FUNC(sctp_sf_ootb),
548 /* SCTP_STATE_COOKIE_WAIT */
549 TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
550 /* SCTP_STATE_COOKIE_ECHOED */
551 TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
552 /* SCTP_STATE_ESTABLISHED */
553 TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
554 /* SCTP_STATE_SHUTDOWN_PENDING */
555 TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
556 /* SCTP_STATE_SHUTDOWN_SENT */
557 TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
558 /* SCTP_STATE_SHUTDOWN_RECEIVED */
559 TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
560 /* SCTP_STATE_SHUTDOWN_ACK_SENT */
561 TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
562}; /* chunk unknown */
563
564
565#define TYPE_SCTP_PRIMITIVE_ASSOCIATE { \
566 /* SCTP_STATE_CLOSED */ \
567 TYPE_SCTP_FUNC(sctp_sf_do_prm_asoc), \
568 /* SCTP_STATE_COOKIE_WAIT */ \
569 TYPE_SCTP_FUNC(sctp_sf_not_impl), \
570 /* SCTP_STATE_COOKIE_ECHOED */ \
571 TYPE_SCTP_FUNC(sctp_sf_not_impl), \
572 /* SCTP_STATE_ESTABLISHED */ \
573 TYPE_SCTP_FUNC(sctp_sf_not_impl), \
574 /* SCTP_STATE_SHUTDOWN_PENDING */ \
575 TYPE_SCTP_FUNC(sctp_sf_not_impl), \
576 /* SCTP_STATE_SHUTDOWN_SENT */ \
577 TYPE_SCTP_FUNC(sctp_sf_not_impl), \
578 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
579 TYPE_SCTP_FUNC(sctp_sf_not_impl), \
580 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
581 TYPE_SCTP_FUNC(sctp_sf_not_impl), \
582} /* TYPE_SCTP_PRIMITIVE_ASSOCIATE */
583
584#define TYPE_SCTP_PRIMITIVE_SHUTDOWN { \
585 /* SCTP_STATE_CLOSED */ \
586 TYPE_SCTP_FUNC(sctp_sf_error_closed), \
587 /* SCTP_STATE_COOKIE_WAIT */ \
588 TYPE_SCTP_FUNC(sctp_sf_cookie_wait_prm_shutdown), \
589 /* SCTP_STATE_COOKIE_ECHOED */ \
590 TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_prm_shutdown),\
591 /* SCTP_STATE_ESTABLISHED */ \
592 TYPE_SCTP_FUNC(sctp_sf_do_9_2_prm_shutdown), \
593 /* SCTP_STATE_SHUTDOWN_PENDING */ \
594 TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
595 /* SCTP_STATE_SHUTDOWN_SENT */ \
596 TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
597 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
598 TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
599 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
600 TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
601} /* TYPE_SCTP_PRIMITIVE_SHUTDOWN */
602
603#define TYPE_SCTP_PRIMITIVE_ABORT { \
604 /* SCTP_STATE_CLOSED */ \
605 TYPE_SCTP_FUNC(sctp_sf_error_closed), \
606 /* SCTP_STATE_COOKIE_WAIT */ \
607 TYPE_SCTP_FUNC(sctp_sf_cookie_wait_prm_abort), \
608 /* SCTP_STATE_COOKIE_ECHOED */ \
609 TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_prm_abort), \
610 /* SCTP_STATE_ESTABLISHED */ \
611 TYPE_SCTP_FUNC(sctp_sf_do_9_1_prm_abort), \
612 /* SCTP_STATE_SHUTDOWN_PENDING */ \
613 TYPE_SCTP_FUNC(sctp_sf_shutdown_pending_prm_abort), \
614 /* SCTP_STATE_SHUTDOWN_SENT */ \
615 TYPE_SCTP_FUNC(sctp_sf_shutdown_sent_prm_abort), \
616 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
617 TYPE_SCTP_FUNC(sctp_sf_do_9_1_prm_abort), \
618 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
619 TYPE_SCTP_FUNC(sctp_sf_shutdown_ack_sent_prm_abort), \
620} /* TYPE_SCTP_PRIMITIVE_ABORT */
621
622#define TYPE_SCTP_PRIMITIVE_SEND { \
623 /* SCTP_STATE_CLOSED */ \
624 TYPE_SCTP_FUNC(sctp_sf_error_closed), \
625 /* SCTP_STATE_COOKIE_WAIT */ \
626 TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
627 /* SCTP_STATE_COOKIE_ECHOED */ \
628 TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
629 /* SCTP_STATE_ESTABLISHED */ \
630 TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
631 /* SCTP_STATE_SHUTDOWN_PENDING */ \
632 TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
633 /* SCTP_STATE_SHUTDOWN_SENT */ \
634 TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
635 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
636 TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
637 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
638 TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
639} /* TYPE_SCTP_PRIMITIVE_SEND */
640
641#define TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT { \
642 /* SCTP_STATE_CLOSED */ \
643 TYPE_SCTP_FUNC(sctp_sf_error_closed), \
644 /* SCTP_STATE_COOKIE_WAIT */ \
645 TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
646 /* SCTP_STATE_COOKIE_ECHOED */ \
647 TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
648 /* SCTP_STATE_ESTABLISHED */ \
649 TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
650 /* SCTP_STATE_SHUTDOWN_PENDING */ \
651 TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
652 /* SCTP_STATE_SHUTDOWN_SENT */ \
653 TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
654 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
655 TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
656 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
657 TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
658} /* TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT */
659
660#define TYPE_SCTP_PRIMITIVE_ASCONF { \
661 /* SCTP_STATE_CLOSED */ \
662 TYPE_SCTP_FUNC(sctp_sf_error_closed), \
663 /* SCTP_STATE_COOKIE_WAIT */ \
664 TYPE_SCTP_FUNC(sctp_sf_error_closed), \
665 /* SCTP_STATE_COOKIE_ECHOED */ \
666 TYPE_SCTP_FUNC(sctp_sf_error_closed), \
667 /* SCTP_STATE_ESTABLISHED */ \
668 TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
669 /* SCTP_STATE_SHUTDOWN_PENDING */ \
670 TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
671 /* SCTP_STATE_SHUTDOWN_SENT */ \
672 TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
673 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
674 TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
675 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
676 TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
677} /* TYPE_SCTP_PRIMITIVE_ASCONF */
678
679#define TYPE_SCTP_PRIMITIVE_RECONF { \
680 /* SCTP_STATE_CLOSED */ \
681 TYPE_SCTP_FUNC(sctp_sf_error_closed), \
682 /* SCTP_STATE_COOKIE_WAIT */ \
683 TYPE_SCTP_FUNC(sctp_sf_error_closed), \
684 /* SCTP_STATE_COOKIE_ECHOED */ \
685 TYPE_SCTP_FUNC(sctp_sf_error_closed), \
686 /* SCTP_STATE_ESTABLISHED */ \
687 TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \
688 /* SCTP_STATE_SHUTDOWN_PENDING */ \
689 TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \
690 /* SCTP_STATE_SHUTDOWN_SENT */ \
691 TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \
692 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
693 TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \
694 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
695 TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
696} /* TYPE_SCTP_PRIMITIVE_RECONF */
697
698/* The primary index for this table is the primitive type.
699 * The secondary index for this table is the state.
700 */
701static const struct sctp_sm_table_entry
702primitive_event_table[SCTP_NUM_PRIMITIVE_TYPES][SCTP_STATE_NUM_STATES] = {
703 TYPE_SCTP_PRIMITIVE_ASSOCIATE,
704 TYPE_SCTP_PRIMITIVE_SHUTDOWN,
705 TYPE_SCTP_PRIMITIVE_ABORT,
706 TYPE_SCTP_PRIMITIVE_SEND,
707 TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT,
708 TYPE_SCTP_PRIMITIVE_ASCONF,
709 TYPE_SCTP_PRIMITIVE_RECONF,
710};
711
712#define TYPE_SCTP_OTHER_NO_PENDING_TSN { \
713 /* SCTP_STATE_CLOSED */ \
714 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
715 /* SCTP_STATE_COOKIE_WAIT */ \
716 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
717 /* SCTP_STATE_COOKIE_ECHOED */ \
718 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
719 /* SCTP_STATE_ESTABLISHED */ \
720 TYPE_SCTP_FUNC(sctp_sf_do_no_pending_tsn), \
721 /* SCTP_STATE_SHUTDOWN_PENDING */ \
722 TYPE_SCTP_FUNC(sctp_sf_do_9_2_start_shutdown), \
723 /* SCTP_STATE_SHUTDOWN_SENT */ \
724 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
725 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
726 TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown_ack), \
727 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
728 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
729}
730
731#define TYPE_SCTP_OTHER_ICMP_PROTO_UNREACH { \
732 /* SCTP_STATE_CLOSED */ \
733 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
734 /* SCTP_STATE_COOKIE_WAIT */ \
735 TYPE_SCTP_FUNC(sctp_sf_cookie_wait_icmp_abort), \
736 /* SCTP_STATE_COOKIE_ECHOED */ \
737 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
738 /* SCTP_STATE_ESTABLISHED */ \
739 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
740 /* SCTP_STATE_SHUTDOWN_PENDING */ \
741 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
742 /* SCTP_STATE_SHUTDOWN_SENT */ \
743 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
744 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
745 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
746 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
747 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
748}
749
750static const struct sctp_sm_table_entry
751other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STATES] = {
752 TYPE_SCTP_OTHER_NO_PENDING_TSN,
753 TYPE_SCTP_OTHER_ICMP_PROTO_UNREACH,
754};
755
756#define TYPE_SCTP_EVENT_TIMEOUT_NONE { \
757 /* SCTP_STATE_CLOSED */ \
758 TYPE_SCTP_FUNC(sctp_sf_bug), \
759 /* SCTP_STATE_COOKIE_WAIT */ \
760 TYPE_SCTP_FUNC(sctp_sf_bug), \
761 /* SCTP_STATE_COOKIE_ECHOED */ \
762 TYPE_SCTP_FUNC(sctp_sf_bug), \
763 /* SCTP_STATE_ESTABLISHED */ \
764 TYPE_SCTP_FUNC(sctp_sf_bug), \
765 /* SCTP_STATE_SHUTDOWN_PENDING */ \
766 TYPE_SCTP_FUNC(sctp_sf_bug), \
767 /* SCTP_STATE_SHUTDOWN_SENT */ \
768 TYPE_SCTP_FUNC(sctp_sf_bug), \
769 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
770 TYPE_SCTP_FUNC(sctp_sf_bug), \
771 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
772 TYPE_SCTP_FUNC(sctp_sf_bug), \
773}
774
775#define TYPE_SCTP_EVENT_TIMEOUT_T1_COOKIE { \
776 /* SCTP_STATE_CLOSED */ \
777 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
778 /* SCTP_STATE_COOKIE_WAIT */ \
779 TYPE_SCTP_FUNC(sctp_sf_bug), \
780 /* SCTP_STATE_COOKIE_ECHOED */ \
781 TYPE_SCTP_FUNC(sctp_sf_t1_cookie_timer_expire), \
782 /* SCTP_STATE_ESTABLISHED */ \
783 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
784 /* SCTP_STATE_SHUTDOWN_PENDING */ \
785 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
786 /* SCTP_STATE_SHUTDOWN_SENT */ \
787 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
788 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
789 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
790 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
791 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
792}
793
794#define TYPE_SCTP_EVENT_TIMEOUT_T1_INIT { \
795 /* SCTP_STATE_CLOSED */ \
796 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
797 /* SCTP_STATE_COOKIE_WAIT */ \
798 TYPE_SCTP_FUNC(sctp_sf_t1_init_timer_expire), \
799 /* SCTP_STATE_COOKIE_ECHOED */ \
800 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
801 /* SCTP_STATE_ESTABLISHED */ \
802 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
803 /* SCTP_STATE_SHUTDOWN_PENDING */ \
804 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
805 /* SCTP_STATE_SHUTDOWN_SENT */ \
806 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
807 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
808 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
809 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
810 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
811}
812
813#define TYPE_SCTP_EVENT_TIMEOUT_T2_SHUTDOWN { \
814 /* SCTP_STATE_CLOSED */ \
815 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
816 /* SCTP_STATE_COOKIE_WAIT */ \
817 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
818 /* SCTP_STATE_COOKIE_ECHOED */ \
819 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
820 /* SCTP_STATE_ESTABLISHED */ \
821 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
822 /* SCTP_STATE_SHUTDOWN_PENDING */ \
823 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
824 /* SCTP_STATE_SHUTDOWN_SENT */ \
825 TYPE_SCTP_FUNC(sctp_sf_t2_timer_expire), \
826 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
827 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
828 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
829 TYPE_SCTP_FUNC(sctp_sf_t2_timer_expire), \
830}
831
832#define TYPE_SCTP_EVENT_TIMEOUT_T3_RTX { \
833 /* SCTP_STATE_CLOSED */ \
834 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
835 /* SCTP_STATE_COOKIE_WAIT */ \
836 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
837 /* SCTP_STATE_COOKIE_ECHOED */ \
838 TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
839 /* SCTP_STATE_ESTABLISHED */ \
840 TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
841 /* SCTP_STATE_SHUTDOWN_PENDING */ \
842 TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
843 /* SCTP_STATE_SHUTDOWN_SENT */ \
844 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
845 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
846 TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
847 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
848 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
849}
850
851#define TYPE_SCTP_EVENT_TIMEOUT_T4_RTO { \
852 /* SCTP_STATE_CLOSED */ \
853 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
854 /* SCTP_STATE_COOKIE_WAIT */ \
855 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
856 /* SCTP_STATE_COOKIE_ECHOED */ \
857 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
858 /* SCTP_STATE_ESTABLISHED */ \
859 TYPE_SCTP_FUNC(sctp_sf_t4_timer_expire), \
860 /* SCTP_STATE_SHUTDOWN_PENDING */ \
861 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
862 /* SCTP_STATE_SHUTDOWN_SENT */ \
863 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
864 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
865 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
866 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
867 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
868}
869
870#define TYPE_SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD { \
871 /* SCTP_STATE_CLOSED */ \
872 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
873 /* SCTP_STATE_COOKIE_WAIT */ \
874 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
875 /* SCTP_STATE_COOKIE_ECHOED */ \
876 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
877 /* SCTP_STATE_ESTABLISHED */ \
878 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
879 /* SCTP_STATE_SHUTDOWN_PENDING */ \
880 TYPE_SCTP_FUNC(sctp_sf_t5_timer_expire), \
881 /* SCTP_STATE_SHUTDOWN_SENT */ \
882 TYPE_SCTP_FUNC(sctp_sf_t5_timer_expire), \
883 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
884 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
885 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
886 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
887}
888
889#define TYPE_SCTP_EVENT_TIMEOUT_HEARTBEAT { \
890 /* SCTP_STATE_CLOSED */ \
891 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
892 /* SCTP_STATE_COOKIE_WAIT */ \
893 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
894 /* SCTP_STATE_COOKIE_ECHOED */ \
895 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
896 /* SCTP_STATE_ESTABLISHED */ \
897 TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
898 /* SCTP_STATE_SHUTDOWN_PENDING */ \
899 TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
900 /* SCTP_STATE_SHUTDOWN_SENT */ \
901 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
902 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
903 TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
904 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
905 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
906}
907
908#define TYPE_SCTP_EVENT_TIMEOUT_SACK { \
909 /* SCTP_STATE_CLOSED */ \
910 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
911 /* SCTP_STATE_COOKIE_WAIT */ \
912 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
913 /* SCTP_STATE_COOKIE_ECHOED */ \
914 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
915 /* SCTP_STATE_ESTABLISHED */ \
916 TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
917 /* SCTP_STATE_SHUTDOWN_PENDING */ \
918 TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
919 /* SCTP_STATE_SHUTDOWN_SENT */ \
920 TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
921 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
922 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
923 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
924 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
925}
926
927#define TYPE_SCTP_EVENT_TIMEOUT_AUTOCLOSE { \
928 /* SCTP_STATE_CLOSED */ \
929 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
930 /* SCTP_STATE_COOKIE_WAIT */ \
931 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
932 /* SCTP_STATE_COOKIE_ECHOED */ \
933 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
934 /* SCTP_STATE_ESTABLISHED */ \
935 TYPE_SCTP_FUNC(sctp_sf_autoclose_timer_expire), \
936 /* SCTP_STATE_SHUTDOWN_PENDING */ \
937 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
938 /* SCTP_STATE_SHUTDOWN_SENT */ \
939 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
940 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
941 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
942 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
943 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
944}
945
946#define TYPE_SCTP_EVENT_TIMEOUT_RECONF { \
947 /* SCTP_STATE_CLOSED */ \
948 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
949 /* SCTP_STATE_COOKIE_WAIT */ \
950 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
951 /* SCTP_STATE_COOKIE_ECHOED */ \
952 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
953 /* SCTP_STATE_ESTABLISHED */ \
954 TYPE_SCTP_FUNC(sctp_sf_send_reconf), \
955 /* SCTP_STATE_SHUTDOWN_PENDING */ \
956 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
957 /* SCTP_STATE_SHUTDOWN_SENT */ \
958 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
959 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
960 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
961 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
962 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
963}
964
965static const struct sctp_sm_table_entry
966timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][SCTP_STATE_NUM_STATES] = {
967 TYPE_SCTP_EVENT_TIMEOUT_NONE,
968 TYPE_SCTP_EVENT_TIMEOUT_T1_COOKIE,
969 TYPE_SCTP_EVENT_TIMEOUT_T1_INIT,
970 TYPE_SCTP_EVENT_TIMEOUT_T2_SHUTDOWN,
971 TYPE_SCTP_EVENT_TIMEOUT_T3_RTX,
972 TYPE_SCTP_EVENT_TIMEOUT_T4_RTO,
973 TYPE_SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD,
974 TYPE_SCTP_EVENT_TIMEOUT_HEARTBEAT,
975 TYPE_SCTP_EVENT_TIMEOUT_RECONF,
976 TYPE_SCTP_EVENT_TIMEOUT_SACK,
977 TYPE_SCTP_EVENT_TIMEOUT_AUTOCLOSE,
978};
979
980static const struct sctp_sm_table_entry *sctp_chunk_event_lookup(
981 struct net *net,
982 enum sctp_cid cid,
983 enum sctp_state state)
984{
985 if (state > SCTP_STATE_MAX)
986 return &bug;
987
988 if (cid == SCTP_CID_I_DATA)
989 cid = SCTP_CID_DATA;
990
991 if (cid <= SCTP_CID_BASE_MAX)
992 return &chunk_event_table[cid][state];
993
994 if (net->sctp.prsctp_enable) {
995 if (cid == SCTP_CID_FWD_TSN || cid == SCTP_CID_I_FWD_TSN)
996 return &prsctp_chunk_event_table[0][state];
997 }
998
999 if (net->sctp.addip_enable) {
1000 if (cid == SCTP_CID_ASCONF)
1001 return &addip_chunk_event_table[0][state];
1002
1003 if (cid == SCTP_CID_ASCONF_ACK)
1004 return &addip_chunk_event_table[1][state];
1005 }
1006
1007 if (net->sctp.reconf_enable)
1008 if (cid == SCTP_CID_RECONF)
1009 return &reconf_chunk_event_table[0][state];
1010
1011 if (net->sctp.auth_enable) {
1012 if (cid == SCTP_CID_AUTH)
1013 return &auth_chunk_event_table[0][state];
1014 }
1015
1016 return &chunk_event_table_unknown[state];
1017}
1// SPDX-License-Identifier: GPL-2.0-or-later
2/* SCTP kernel implementation
3 * (C) Copyright IBM Corp. 2001, 2004
4 * Copyright (c) 1999-2000 Cisco, Inc.
5 * Copyright (c) 1999-2001 Motorola, Inc.
6 * Copyright (c) 2001 Intel Corp.
7 * Copyright (c) 2001 Nokia, Inc.
8 *
9 * This file is part of the SCTP kernel implementation
10 *
11 * These are the state tables for the SCTP state machine.
12 *
13 * Please send any bug reports or fixes you make to the
14 * email address(es):
15 * lksctp developers <linux-sctp@vger.kernel.org>
16 *
17 * Written or modified by:
18 * La Monte H.P. Yarroll <piggy@acm.org>
19 * Karl Knutson <karl@athena.chicago.il.us>
20 * Jon Grimm <jgrimm@us.ibm.com>
21 * Hui Huang <hui.huang@nokia.com>
22 * Daisy Chang <daisyc@us.ibm.com>
23 * Ardelle Fan <ardelle.fan@intel.com>
24 * Sridhar Samudrala <sri@us.ibm.com>
25 */
26
27#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
28
29#include <linux/skbuff.h>
30#include <net/sctp/sctp.h>
31#include <net/sctp/sm.h>
32
33static const struct sctp_sm_table_entry
34primitive_event_table[SCTP_NUM_PRIMITIVE_TYPES][SCTP_STATE_NUM_STATES];
35static const struct sctp_sm_table_entry
36other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STATES];
37static const struct sctp_sm_table_entry
38timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][SCTP_STATE_NUM_STATES];
39
40static const struct sctp_sm_table_entry *sctp_chunk_event_lookup(
41 struct net *net,
42 enum sctp_cid cid,
43 enum sctp_state state);
44
45
46static const struct sctp_sm_table_entry bug = {
47 .fn = sctp_sf_bug,
48 .name = "sctp_sf_bug"
49};
50
51#define DO_LOOKUP(_max, _type, _table) \
52({ \
53 const struct sctp_sm_table_entry *rtn; \
54 \
55 if ((event_subtype._type > (_max))) { \
56 pr_warn("table %p possible attack: event %d exceeds max %d\n", \
57 _table, event_subtype._type, _max); \
58 rtn = &bug; \
59 } else \
60 rtn = &_table[event_subtype._type][(int)state]; \
61 \
62 rtn; \
63})
64
65const struct sctp_sm_table_entry *sctp_sm_lookup_event(
66 struct net *net,
67 enum sctp_event_type event_type,
68 enum sctp_state state,
69 union sctp_subtype event_subtype)
70{
71 switch (event_type) {
72 case SCTP_EVENT_T_CHUNK:
73 return sctp_chunk_event_lookup(net, event_subtype.chunk, state);
74 case SCTP_EVENT_T_TIMEOUT:
75 return DO_LOOKUP(SCTP_EVENT_TIMEOUT_MAX, timeout,
76 timeout_event_table);
77 case SCTP_EVENT_T_OTHER:
78 return DO_LOOKUP(SCTP_EVENT_OTHER_MAX, other,
79 other_event_table);
80 case SCTP_EVENT_T_PRIMITIVE:
81 return DO_LOOKUP(SCTP_EVENT_PRIMITIVE_MAX, primitive,
82 primitive_event_table);
83 default:
84 /* Yikes! We got an illegal event type. */
85 return &bug;
86 }
87}
88
89#define TYPE_SCTP_FUNC(func) {.fn = func, .name = #func}
90
91#define TYPE_SCTP_DATA { \
92 /* SCTP_STATE_CLOSED */ \
93 TYPE_SCTP_FUNC(sctp_sf_ootb), \
94 /* SCTP_STATE_COOKIE_WAIT */ \
95 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
96 /* SCTP_STATE_COOKIE_ECHOED */ \
97 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
98 /* SCTP_STATE_ESTABLISHED */ \
99 TYPE_SCTP_FUNC(sctp_sf_eat_data_6_2), \
100 /* SCTP_STATE_SHUTDOWN_PENDING */ \
101 TYPE_SCTP_FUNC(sctp_sf_eat_data_6_2), \
102 /* SCTP_STATE_SHUTDOWN_SENT */ \
103 TYPE_SCTP_FUNC(sctp_sf_eat_data_fast_4_4), \
104 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
105 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
106 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
107 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
108} /* TYPE_SCTP_DATA */
109
110#define TYPE_SCTP_INIT { \
111 /* SCTP_STATE_CLOSED */ \
112 TYPE_SCTP_FUNC(sctp_sf_do_5_1B_init), \
113 /* SCTP_STATE_COOKIE_WAIT */ \
114 TYPE_SCTP_FUNC(sctp_sf_do_5_2_1_siminit), \
115 /* SCTP_STATE_COOKIE_ECHOED */ \
116 TYPE_SCTP_FUNC(sctp_sf_do_5_2_1_siminit), \
117 /* SCTP_STATE_ESTABLISHED */ \
118 TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
119 /* SCTP_STATE_SHUTDOWN_PENDING */ \
120 TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
121 /* SCTP_STATE_SHUTDOWN_SENT */ \
122 TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
123 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
124 TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
125 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
126 TYPE_SCTP_FUNC(sctp_sf_do_9_2_reshutack), \
127} /* TYPE_SCTP_INIT */
128
129#define TYPE_SCTP_INIT_ACK { \
130 /* SCTP_STATE_CLOSED */ \
131 TYPE_SCTP_FUNC(sctp_sf_do_5_2_3_initack), \
132 /* SCTP_STATE_COOKIE_WAIT */ \
133 TYPE_SCTP_FUNC(sctp_sf_do_5_1C_ack), \
134 /* SCTP_STATE_COOKIE_ECHOED */ \
135 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
136 /* SCTP_STATE_ESTABLISHED */ \
137 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
138 /* SCTP_STATE_SHUTDOWN_PENDING */ \
139 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
140 /* SCTP_STATE_SHUTDOWN_SENT */ \
141 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
142 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
143 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
144 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
145 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
146} /* TYPE_SCTP_INIT_ACK */
147
148#define TYPE_SCTP_SACK { \
149 /* SCTP_STATE_CLOSED */ \
150 TYPE_SCTP_FUNC(sctp_sf_ootb), \
151 /* SCTP_STATE_COOKIE_WAIT */ \
152 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
153 /* SCTP_STATE_COOKIE_ECHOED */ \
154 TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
155 /* SCTP_STATE_ESTABLISHED */ \
156 TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
157 /* SCTP_STATE_SHUTDOWN_PENDING */ \
158 TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
159 /* SCTP_STATE_SHUTDOWN_SENT */ \
160 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
161 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
162 TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
163 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
164 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
165} /* TYPE_SCTP_SACK */
166
167#define TYPE_SCTP_HEARTBEAT { \
168 /* SCTP_STATE_CLOSED */ \
169 TYPE_SCTP_FUNC(sctp_sf_ootb), \
170 /* SCTP_STATE_COOKIE_WAIT */ \
171 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
172 /* SCTP_STATE_COOKIE_ECHOED */ \
173 TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
174 /* SCTP_STATE_ESTABLISHED */ \
175 TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
176 /* SCTP_STATE_SHUTDOWN_PENDING */ \
177 TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
178 /* SCTP_STATE_SHUTDOWN_SENT */ \
179 TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
180 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
181 TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
182 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
183 /* This should not happen, but we are nice. */ \
184 TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
185} /* TYPE_SCTP_HEARTBEAT */
186
187#define TYPE_SCTP_HEARTBEAT_ACK { \
188 /* SCTP_STATE_CLOSED */ \
189 TYPE_SCTP_FUNC(sctp_sf_ootb), \
190 /* SCTP_STATE_COOKIE_WAIT */ \
191 TYPE_SCTP_FUNC(sctp_sf_violation), \
192 /* SCTP_STATE_COOKIE_ECHOED */ \
193 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
194 /* SCTP_STATE_ESTABLISHED */ \
195 TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
196 /* SCTP_STATE_SHUTDOWN_PENDING */ \
197 TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
198 /* SCTP_STATE_SHUTDOWN_SENT */ \
199 TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
200 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
201 TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
202 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
203 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
204} /* TYPE_SCTP_HEARTBEAT_ACK */
205
206#define TYPE_SCTP_ABORT { \
207 /* SCTP_STATE_CLOSED */ \
208 TYPE_SCTP_FUNC(sctp_sf_pdiscard), \
209 /* SCTP_STATE_COOKIE_WAIT */ \
210 TYPE_SCTP_FUNC(sctp_sf_cookie_wait_abort), \
211 /* SCTP_STATE_COOKIE_ECHOED */ \
212 TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_abort), \
213 /* SCTP_STATE_ESTABLISHED */ \
214 TYPE_SCTP_FUNC(sctp_sf_do_9_1_abort), \
215 /* SCTP_STATE_SHUTDOWN_PENDING */ \
216 TYPE_SCTP_FUNC(sctp_sf_shutdown_pending_abort), \
217 /* SCTP_STATE_SHUTDOWN_SENT */ \
218 TYPE_SCTP_FUNC(sctp_sf_shutdown_sent_abort), \
219 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
220 TYPE_SCTP_FUNC(sctp_sf_do_9_1_abort), \
221 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
222 TYPE_SCTP_FUNC(sctp_sf_shutdown_ack_sent_abort), \
223} /* TYPE_SCTP_ABORT */
224
225#define TYPE_SCTP_SHUTDOWN { \
226 /* SCTP_STATE_CLOSED */ \
227 TYPE_SCTP_FUNC(sctp_sf_ootb), \
228 /* SCTP_STATE_COOKIE_WAIT */ \
229 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
230 /* SCTP_STATE_COOKIE_ECHOED */ \
231 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
232 /* SCTP_STATE_ESTABLISHED */ \
233 TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown), \
234 /* SCTP_STATE_SHUTDOWN_PENDING */ \
235 TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown), \
236 /* SCTP_STATE_SHUTDOWN_SENT */ \
237 TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown_ack), \
238 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
239 TYPE_SCTP_FUNC(sctp_sf_do_9_2_shut_ctsn), \
240 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
241 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
242} /* TYPE_SCTP_SHUTDOWN */
243
244#define TYPE_SCTP_SHUTDOWN_ACK { \
245 /* SCTP_STATE_CLOSED */ \
246 TYPE_SCTP_FUNC(sctp_sf_ootb), \
247 /* SCTP_STATE_COOKIE_WAIT */ \
248 TYPE_SCTP_FUNC(sctp_sf_do_8_5_1_E_sa), \
249 /* SCTP_STATE_COOKIE_ECHOED */ \
250 TYPE_SCTP_FUNC(sctp_sf_do_8_5_1_E_sa), \
251 /* SCTP_STATE_ESTABLISHED */ \
252 TYPE_SCTP_FUNC(sctp_sf_violation), \
253 /* SCTP_STATE_SHUTDOWN_PENDING */ \
254 TYPE_SCTP_FUNC(sctp_sf_violation), \
255 /* SCTP_STATE_SHUTDOWN_SENT */ \
256 TYPE_SCTP_FUNC(sctp_sf_do_9_2_final), \
257 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
258 TYPE_SCTP_FUNC(sctp_sf_violation), \
259 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
260 TYPE_SCTP_FUNC(sctp_sf_do_9_2_final), \
261} /* TYPE_SCTP_SHUTDOWN_ACK */
262
263#define TYPE_SCTP_ERROR { \
264 /* SCTP_STATE_CLOSED */ \
265 TYPE_SCTP_FUNC(sctp_sf_ootb), \
266 /* SCTP_STATE_COOKIE_WAIT */ \
267 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
268 /* SCTP_STATE_COOKIE_ECHOED */ \
269 TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_err), \
270 /* SCTP_STATE_ESTABLISHED */ \
271 TYPE_SCTP_FUNC(sctp_sf_operr_notify), \
272 /* SCTP_STATE_SHUTDOWN_PENDING */ \
273 TYPE_SCTP_FUNC(sctp_sf_operr_notify), \
274 /* SCTP_STATE_SHUTDOWN_SENT */ \
275 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
276 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
277 TYPE_SCTP_FUNC(sctp_sf_operr_notify), \
278 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
279 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
280} /* TYPE_SCTP_ERROR */
281
282#define TYPE_SCTP_COOKIE_ECHO { \
283 /* SCTP_STATE_CLOSED */ \
284 TYPE_SCTP_FUNC(sctp_sf_do_5_1D_ce), \
285 /* SCTP_STATE_COOKIE_WAIT */ \
286 TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
287 /* SCTP_STATE_COOKIE_ECHOED */ \
288 TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
289 /* SCTP_STATE_ESTABLISHED */ \
290 TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
291 /* SCTP_STATE_SHUTDOWN_PENDING */ \
292 TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
293 /* SCTP_STATE_SHUTDOWN_SENT */ \
294 TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
295 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
296 TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
297 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
298 TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
299} /* TYPE_SCTP_COOKIE_ECHO */
300
301#define TYPE_SCTP_COOKIE_ACK { \
302 /* SCTP_STATE_CLOSED */ \
303 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
304 /* SCTP_STATE_COOKIE_WAIT */ \
305 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
306 /* SCTP_STATE_COOKIE_ECHOED */ \
307 TYPE_SCTP_FUNC(sctp_sf_do_5_1E_ca), \
308 /* SCTP_STATE_ESTABLISHED */ \
309 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
310 /* SCTP_STATE_SHUTDOWN_PENDING */ \
311 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
312 /* SCTP_STATE_SHUTDOWN_SENT */ \
313 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
314 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
315 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
316 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
317 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
318} /* TYPE_SCTP_COOKIE_ACK */
319
320#define TYPE_SCTP_ECN_ECNE { \
321 /* SCTP_STATE_CLOSED */ \
322 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
323 /* SCTP_STATE_COOKIE_WAIT */ \
324 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
325 /* SCTP_STATE_COOKIE_ECHOED */ \
326 TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
327 /* SCTP_STATE_ESTABLISHED */ \
328 TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
329 /* SCTP_STATE_SHUTDOWN_PENDING */ \
330 TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
331 /* SCTP_STATE_SHUTDOWN_SENT */ \
332 TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
333 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
334 TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
335 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
336 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
337} /* TYPE_SCTP_ECN_ECNE */
338
339#define TYPE_SCTP_ECN_CWR { \
340 /* SCTP_STATE_CLOSED */ \
341 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
342 /* SCTP_STATE_COOKIE_WAIT */ \
343 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
344 /* SCTP_STATE_COOKIE_ECHOED */ \
345 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
346 /* SCTP_STATE_ESTABLISHED */ \
347 TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \
348 /* SCTP_STATE_SHUTDOWN_PENDING */ \
349 TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \
350 /* SCTP_STATE_SHUTDOWN_SENT */ \
351 TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \
352 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
353 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
354 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
355 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
356} /* TYPE_SCTP_ECN_CWR */
357
358#define TYPE_SCTP_SHUTDOWN_COMPLETE { \
359 /* SCTP_STATE_CLOSED */ \
360 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
361 /* SCTP_STATE_COOKIE_WAIT */ \
362 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
363 /* SCTP_STATE_COOKIE_ECHOED */ \
364 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
365 /* SCTP_STATE_ESTABLISHED */ \
366 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
367 /* SCTP_STATE_SHUTDOWN_PENDING */ \
368 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
369 /* SCTP_STATE_SHUTDOWN_SENT */ \
370 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
371 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
372 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
373 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
374 TYPE_SCTP_FUNC(sctp_sf_do_4_C), \
375} /* TYPE_SCTP_SHUTDOWN_COMPLETE */
376
377/* The primary index for this table is the chunk type.
378 * The secondary index for this table is the state.
379 *
380 * For base protocol (RFC 2960).
381 */
382static const struct sctp_sm_table_entry
383chunk_event_table[SCTP_NUM_BASE_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
384 TYPE_SCTP_DATA,
385 TYPE_SCTP_INIT,
386 TYPE_SCTP_INIT_ACK,
387 TYPE_SCTP_SACK,
388 TYPE_SCTP_HEARTBEAT,
389 TYPE_SCTP_HEARTBEAT_ACK,
390 TYPE_SCTP_ABORT,
391 TYPE_SCTP_SHUTDOWN,
392 TYPE_SCTP_SHUTDOWN_ACK,
393 TYPE_SCTP_ERROR,
394 TYPE_SCTP_COOKIE_ECHO,
395 TYPE_SCTP_COOKIE_ACK,
396 TYPE_SCTP_ECN_ECNE,
397 TYPE_SCTP_ECN_CWR,
398 TYPE_SCTP_SHUTDOWN_COMPLETE,
399}; /* state_fn_t chunk_event_table[][] */
400
401#define TYPE_SCTP_ASCONF { \
402 /* SCTP_STATE_CLOSED */ \
403 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
404 /* SCTP_STATE_COOKIE_WAIT */ \
405 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
406 /* SCTP_STATE_COOKIE_ECHOED */ \
407 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
408 /* SCTP_STATE_ESTABLISHED */ \
409 TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
410 /* SCTP_STATE_SHUTDOWN_PENDING */ \
411 TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
412 /* SCTP_STATE_SHUTDOWN_SENT */ \
413 TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
414 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
415 TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
416 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
417 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
418} /* TYPE_SCTP_ASCONF */
419
420#define TYPE_SCTP_ASCONF_ACK { \
421 /* SCTP_STATE_CLOSED */ \
422 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
423 /* SCTP_STATE_COOKIE_WAIT */ \
424 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
425 /* SCTP_STATE_COOKIE_ECHOED */ \
426 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
427 /* SCTP_STATE_ESTABLISHED */ \
428 TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
429 /* SCTP_STATE_SHUTDOWN_PENDING */ \
430 TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
431 /* SCTP_STATE_SHUTDOWN_SENT */ \
432 TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
433 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
434 TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
435 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
436 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
437} /* TYPE_SCTP_ASCONF_ACK */
438
439/* The primary index for this table is the chunk type.
440 * The secondary index for this table is the state.
441 */
442static const struct sctp_sm_table_entry
443addip_chunk_event_table[SCTP_NUM_ADDIP_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
444 TYPE_SCTP_ASCONF,
445 TYPE_SCTP_ASCONF_ACK,
446}; /*state_fn_t addip_chunk_event_table[][] */
447
448#define TYPE_SCTP_FWD_TSN { \
449 /* SCTP_STATE_CLOSED */ \
450 TYPE_SCTP_FUNC(sctp_sf_ootb), \
451 /* SCTP_STATE_COOKIE_WAIT */ \
452 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
453 /* SCTP_STATE_COOKIE_ECHOED */ \
454 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
455 /* SCTP_STATE_ESTABLISHED */ \
456 TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn), \
457 /* SCTP_STATE_SHUTDOWN_PENDING */ \
458 TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn), \
459 /* SCTP_STATE_SHUTDOWN_SENT */ \
460 TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn_fast), \
461 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
462 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
463 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
464 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
465} /* TYPE_SCTP_FWD_TSN */
466
467/* The primary index for this table is the chunk type.
468 * The secondary index for this table is the state.
469 */
470static const struct sctp_sm_table_entry
471prsctp_chunk_event_table[SCTP_NUM_PRSCTP_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
472 TYPE_SCTP_FWD_TSN,
473}; /*state_fn_t prsctp_chunk_event_table[][] */
474
475#define TYPE_SCTP_RECONF { \
476 /* SCTP_STATE_CLOSED */ \
477 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
478 /* SCTP_STATE_COOKIE_WAIT */ \
479 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
480 /* SCTP_STATE_COOKIE_ECHOED */ \
481 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
482 /* SCTP_STATE_ESTABLISHED */ \
483 TYPE_SCTP_FUNC(sctp_sf_do_reconf), \
484 /* SCTP_STATE_SHUTDOWN_PENDING */ \
485 TYPE_SCTP_FUNC(sctp_sf_do_reconf), \
486 /* SCTP_STATE_SHUTDOWN_SENT */ \
487 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
488 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
489 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
490 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
491 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
492} /* TYPE_SCTP_RECONF */
493
494/* The primary index for this table is the chunk type.
495 * The secondary index for this table is the state.
496 */
497static const struct sctp_sm_table_entry
498reconf_chunk_event_table[SCTP_NUM_RECONF_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
499 TYPE_SCTP_RECONF,
500}; /*state_fn_t reconf_chunk_event_table[][] */
501
502#define TYPE_SCTP_AUTH { \
503 /* SCTP_STATE_CLOSED */ \
504 TYPE_SCTP_FUNC(sctp_sf_ootb), \
505 /* SCTP_STATE_COOKIE_WAIT */ \
506 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
507 /* SCTP_STATE_COOKIE_ECHOED */ \
508 TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
509 /* SCTP_STATE_ESTABLISHED */ \
510 TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
511 /* SCTP_STATE_SHUTDOWN_PENDING */ \
512 TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
513 /* SCTP_STATE_SHUTDOWN_SENT */ \
514 TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
515 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
516 TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
517 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
518 TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
519} /* TYPE_SCTP_AUTH */
520
521/* The primary index for this table is the chunk type.
522 * The secondary index for this table is the state.
523 */
524static const struct sctp_sm_table_entry
525auth_chunk_event_table[SCTP_NUM_AUTH_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
526 TYPE_SCTP_AUTH,
527}; /*state_fn_t auth_chunk_event_table[][] */
528
529static const struct sctp_sm_table_entry
530pad_chunk_event_table[SCTP_STATE_NUM_STATES] = {
531 /* SCTP_STATE_CLOSED */
532 TYPE_SCTP_FUNC(sctp_sf_discard_chunk),
533 /* SCTP_STATE_COOKIE_WAIT */
534 TYPE_SCTP_FUNC(sctp_sf_discard_chunk),
535 /* SCTP_STATE_COOKIE_ECHOED */
536 TYPE_SCTP_FUNC(sctp_sf_discard_chunk),
537 /* SCTP_STATE_ESTABLISHED */
538 TYPE_SCTP_FUNC(sctp_sf_discard_chunk),
539 /* SCTP_STATE_SHUTDOWN_PENDING */
540 TYPE_SCTP_FUNC(sctp_sf_discard_chunk),
541 /* SCTP_STATE_SHUTDOWN_SENT */
542 TYPE_SCTP_FUNC(sctp_sf_discard_chunk),
543 /* SCTP_STATE_SHUTDOWN_RECEIVED */
544 TYPE_SCTP_FUNC(sctp_sf_discard_chunk),
545 /* SCTP_STATE_SHUTDOWN_ACK_SENT */
546 TYPE_SCTP_FUNC(sctp_sf_discard_chunk),
547}; /* chunk pad */
548
549static const struct sctp_sm_table_entry
550chunk_event_table_unknown[SCTP_STATE_NUM_STATES] = {
551 /* SCTP_STATE_CLOSED */
552 TYPE_SCTP_FUNC(sctp_sf_ootb),
553 /* SCTP_STATE_COOKIE_WAIT */
554 TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
555 /* SCTP_STATE_COOKIE_ECHOED */
556 TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
557 /* SCTP_STATE_ESTABLISHED */
558 TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
559 /* SCTP_STATE_SHUTDOWN_PENDING */
560 TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
561 /* SCTP_STATE_SHUTDOWN_SENT */
562 TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
563 /* SCTP_STATE_SHUTDOWN_RECEIVED */
564 TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
565 /* SCTP_STATE_SHUTDOWN_ACK_SENT */
566 TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
567}; /* chunk unknown */
568
569
570#define TYPE_SCTP_PRIMITIVE_ASSOCIATE { \
571 /* SCTP_STATE_CLOSED */ \
572 TYPE_SCTP_FUNC(sctp_sf_do_prm_asoc), \
573 /* SCTP_STATE_COOKIE_WAIT */ \
574 TYPE_SCTP_FUNC(sctp_sf_not_impl), \
575 /* SCTP_STATE_COOKIE_ECHOED */ \
576 TYPE_SCTP_FUNC(sctp_sf_not_impl), \
577 /* SCTP_STATE_ESTABLISHED */ \
578 TYPE_SCTP_FUNC(sctp_sf_not_impl), \
579 /* SCTP_STATE_SHUTDOWN_PENDING */ \
580 TYPE_SCTP_FUNC(sctp_sf_not_impl), \
581 /* SCTP_STATE_SHUTDOWN_SENT */ \
582 TYPE_SCTP_FUNC(sctp_sf_not_impl), \
583 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
584 TYPE_SCTP_FUNC(sctp_sf_not_impl), \
585 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
586 TYPE_SCTP_FUNC(sctp_sf_not_impl), \
587} /* TYPE_SCTP_PRIMITIVE_ASSOCIATE */
588
589#define TYPE_SCTP_PRIMITIVE_SHUTDOWN { \
590 /* SCTP_STATE_CLOSED */ \
591 TYPE_SCTP_FUNC(sctp_sf_error_closed), \
592 /* SCTP_STATE_COOKIE_WAIT */ \
593 TYPE_SCTP_FUNC(sctp_sf_cookie_wait_prm_shutdown), \
594 /* SCTP_STATE_COOKIE_ECHOED */ \
595 TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_prm_shutdown),\
596 /* SCTP_STATE_ESTABLISHED */ \
597 TYPE_SCTP_FUNC(sctp_sf_do_9_2_prm_shutdown), \
598 /* SCTP_STATE_SHUTDOWN_PENDING */ \
599 TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
600 /* SCTP_STATE_SHUTDOWN_SENT */ \
601 TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
602 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
603 TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
604 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
605 TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
606} /* TYPE_SCTP_PRIMITIVE_SHUTDOWN */
607
608#define TYPE_SCTP_PRIMITIVE_ABORT { \
609 /* SCTP_STATE_CLOSED */ \
610 TYPE_SCTP_FUNC(sctp_sf_error_closed), \
611 /* SCTP_STATE_COOKIE_WAIT */ \
612 TYPE_SCTP_FUNC(sctp_sf_cookie_wait_prm_abort), \
613 /* SCTP_STATE_COOKIE_ECHOED */ \
614 TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_prm_abort), \
615 /* SCTP_STATE_ESTABLISHED */ \
616 TYPE_SCTP_FUNC(sctp_sf_do_9_1_prm_abort), \
617 /* SCTP_STATE_SHUTDOWN_PENDING */ \
618 TYPE_SCTP_FUNC(sctp_sf_shutdown_pending_prm_abort), \
619 /* SCTP_STATE_SHUTDOWN_SENT */ \
620 TYPE_SCTP_FUNC(sctp_sf_shutdown_sent_prm_abort), \
621 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
622 TYPE_SCTP_FUNC(sctp_sf_do_9_1_prm_abort), \
623 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
624 TYPE_SCTP_FUNC(sctp_sf_shutdown_ack_sent_prm_abort), \
625} /* TYPE_SCTP_PRIMITIVE_ABORT */
626
627#define TYPE_SCTP_PRIMITIVE_SEND { \
628 /* SCTP_STATE_CLOSED */ \
629 TYPE_SCTP_FUNC(sctp_sf_error_closed), \
630 /* SCTP_STATE_COOKIE_WAIT */ \
631 TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
632 /* SCTP_STATE_COOKIE_ECHOED */ \
633 TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
634 /* SCTP_STATE_ESTABLISHED */ \
635 TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
636 /* SCTP_STATE_SHUTDOWN_PENDING */ \
637 TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
638 /* SCTP_STATE_SHUTDOWN_SENT */ \
639 TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
640 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
641 TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
642 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
643 TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
644} /* TYPE_SCTP_PRIMITIVE_SEND */
645
646#define TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT { \
647 /* SCTP_STATE_CLOSED */ \
648 TYPE_SCTP_FUNC(sctp_sf_error_closed), \
649 /* SCTP_STATE_COOKIE_WAIT */ \
650 TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
651 /* SCTP_STATE_COOKIE_ECHOED */ \
652 TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
653 /* SCTP_STATE_ESTABLISHED */ \
654 TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
655 /* SCTP_STATE_SHUTDOWN_PENDING */ \
656 TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
657 /* SCTP_STATE_SHUTDOWN_SENT */ \
658 TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
659 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
660 TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
661 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
662 TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
663} /* TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT */
664
665#define TYPE_SCTP_PRIMITIVE_ASCONF { \
666 /* SCTP_STATE_CLOSED */ \
667 TYPE_SCTP_FUNC(sctp_sf_error_closed), \
668 /* SCTP_STATE_COOKIE_WAIT */ \
669 TYPE_SCTP_FUNC(sctp_sf_error_closed), \
670 /* SCTP_STATE_COOKIE_ECHOED */ \
671 TYPE_SCTP_FUNC(sctp_sf_error_closed), \
672 /* SCTP_STATE_ESTABLISHED */ \
673 TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
674 /* SCTP_STATE_SHUTDOWN_PENDING */ \
675 TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
676 /* SCTP_STATE_SHUTDOWN_SENT */ \
677 TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
678 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
679 TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
680 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
681 TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
682} /* TYPE_SCTP_PRIMITIVE_ASCONF */
683
684#define TYPE_SCTP_PRIMITIVE_RECONF { \
685 /* SCTP_STATE_CLOSED */ \
686 TYPE_SCTP_FUNC(sctp_sf_error_closed), \
687 /* SCTP_STATE_COOKIE_WAIT */ \
688 TYPE_SCTP_FUNC(sctp_sf_error_closed), \
689 /* SCTP_STATE_COOKIE_ECHOED */ \
690 TYPE_SCTP_FUNC(sctp_sf_error_closed), \
691 /* SCTP_STATE_ESTABLISHED */ \
692 TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \
693 /* SCTP_STATE_SHUTDOWN_PENDING */ \
694 TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \
695 /* SCTP_STATE_SHUTDOWN_SENT */ \
696 TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \
697 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
698 TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \
699 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
700 TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
701} /* TYPE_SCTP_PRIMITIVE_RECONF */
702
703/* The primary index for this table is the primitive type.
704 * The secondary index for this table is the state.
705 */
706static const struct sctp_sm_table_entry
707primitive_event_table[SCTP_NUM_PRIMITIVE_TYPES][SCTP_STATE_NUM_STATES] = {
708 TYPE_SCTP_PRIMITIVE_ASSOCIATE,
709 TYPE_SCTP_PRIMITIVE_SHUTDOWN,
710 TYPE_SCTP_PRIMITIVE_ABORT,
711 TYPE_SCTP_PRIMITIVE_SEND,
712 TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT,
713 TYPE_SCTP_PRIMITIVE_ASCONF,
714 TYPE_SCTP_PRIMITIVE_RECONF,
715};
716
717#define TYPE_SCTP_OTHER_NO_PENDING_TSN { \
718 /* SCTP_STATE_CLOSED */ \
719 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
720 /* SCTP_STATE_COOKIE_WAIT */ \
721 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
722 /* SCTP_STATE_COOKIE_ECHOED */ \
723 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
724 /* SCTP_STATE_ESTABLISHED */ \
725 TYPE_SCTP_FUNC(sctp_sf_do_no_pending_tsn), \
726 /* SCTP_STATE_SHUTDOWN_PENDING */ \
727 TYPE_SCTP_FUNC(sctp_sf_do_9_2_start_shutdown), \
728 /* SCTP_STATE_SHUTDOWN_SENT */ \
729 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
730 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
731 TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown_ack), \
732 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
733 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
734}
735
736#define TYPE_SCTP_OTHER_ICMP_PROTO_UNREACH { \
737 /* SCTP_STATE_CLOSED */ \
738 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
739 /* SCTP_STATE_COOKIE_WAIT */ \
740 TYPE_SCTP_FUNC(sctp_sf_cookie_wait_icmp_abort), \
741 /* SCTP_STATE_COOKIE_ECHOED */ \
742 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
743 /* SCTP_STATE_ESTABLISHED */ \
744 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
745 /* SCTP_STATE_SHUTDOWN_PENDING */ \
746 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
747 /* SCTP_STATE_SHUTDOWN_SENT */ \
748 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
749 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
750 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
751 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
752 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
753}
754
755static const struct sctp_sm_table_entry
756other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STATES] = {
757 TYPE_SCTP_OTHER_NO_PENDING_TSN,
758 TYPE_SCTP_OTHER_ICMP_PROTO_UNREACH,
759};
760
761#define TYPE_SCTP_EVENT_TIMEOUT_NONE { \
762 /* SCTP_STATE_CLOSED */ \
763 TYPE_SCTP_FUNC(sctp_sf_bug), \
764 /* SCTP_STATE_COOKIE_WAIT */ \
765 TYPE_SCTP_FUNC(sctp_sf_bug), \
766 /* SCTP_STATE_COOKIE_ECHOED */ \
767 TYPE_SCTP_FUNC(sctp_sf_bug), \
768 /* SCTP_STATE_ESTABLISHED */ \
769 TYPE_SCTP_FUNC(sctp_sf_bug), \
770 /* SCTP_STATE_SHUTDOWN_PENDING */ \
771 TYPE_SCTP_FUNC(sctp_sf_bug), \
772 /* SCTP_STATE_SHUTDOWN_SENT */ \
773 TYPE_SCTP_FUNC(sctp_sf_bug), \
774 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
775 TYPE_SCTP_FUNC(sctp_sf_bug), \
776 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
777 TYPE_SCTP_FUNC(sctp_sf_bug), \
778}
779
780#define TYPE_SCTP_EVENT_TIMEOUT_T1_COOKIE { \
781 /* SCTP_STATE_CLOSED */ \
782 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
783 /* SCTP_STATE_COOKIE_WAIT */ \
784 TYPE_SCTP_FUNC(sctp_sf_bug), \
785 /* SCTP_STATE_COOKIE_ECHOED */ \
786 TYPE_SCTP_FUNC(sctp_sf_t1_cookie_timer_expire), \
787 /* SCTP_STATE_ESTABLISHED */ \
788 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
789 /* SCTP_STATE_SHUTDOWN_PENDING */ \
790 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
791 /* SCTP_STATE_SHUTDOWN_SENT */ \
792 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
793 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
794 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
795 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
796 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
797}
798
799#define TYPE_SCTP_EVENT_TIMEOUT_T1_INIT { \
800 /* SCTP_STATE_CLOSED */ \
801 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
802 /* SCTP_STATE_COOKIE_WAIT */ \
803 TYPE_SCTP_FUNC(sctp_sf_t1_init_timer_expire), \
804 /* SCTP_STATE_COOKIE_ECHOED */ \
805 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
806 /* SCTP_STATE_ESTABLISHED */ \
807 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
808 /* SCTP_STATE_SHUTDOWN_PENDING */ \
809 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
810 /* SCTP_STATE_SHUTDOWN_SENT */ \
811 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
812 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
813 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
814 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
815 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
816}
817
818#define TYPE_SCTP_EVENT_TIMEOUT_T2_SHUTDOWN { \
819 /* SCTP_STATE_CLOSED */ \
820 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
821 /* SCTP_STATE_COOKIE_WAIT */ \
822 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
823 /* SCTP_STATE_COOKIE_ECHOED */ \
824 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
825 /* SCTP_STATE_ESTABLISHED */ \
826 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
827 /* SCTP_STATE_SHUTDOWN_PENDING */ \
828 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
829 /* SCTP_STATE_SHUTDOWN_SENT */ \
830 TYPE_SCTP_FUNC(sctp_sf_t2_timer_expire), \
831 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
832 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
833 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
834 TYPE_SCTP_FUNC(sctp_sf_t2_timer_expire), \
835}
836
837#define TYPE_SCTP_EVENT_TIMEOUT_T3_RTX { \
838 /* SCTP_STATE_CLOSED */ \
839 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
840 /* SCTP_STATE_COOKIE_WAIT */ \
841 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
842 /* SCTP_STATE_COOKIE_ECHOED */ \
843 TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
844 /* SCTP_STATE_ESTABLISHED */ \
845 TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
846 /* SCTP_STATE_SHUTDOWN_PENDING */ \
847 TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
848 /* SCTP_STATE_SHUTDOWN_SENT */ \
849 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
850 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
851 TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
852 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
853 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
854}
855
856#define TYPE_SCTP_EVENT_TIMEOUT_T4_RTO { \
857 /* SCTP_STATE_CLOSED */ \
858 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
859 /* SCTP_STATE_COOKIE_WAIT */ \
860 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
861 /* SCTP_STATE_COOKIE_ECHOED */ \
862 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
863 /* SCTP_STATE_ESTABLISHED */ \
864 TYPE_SCTP_FUNC(sctp_sf_t4_timer_expire), \
865 /* SCTP_STATE_SHUTDOWN_PENDING */ \
866 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
867 /* SCTP_STATE_SHUTDOWN_SENT */ \
868 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
869 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
870 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
871 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
872 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
873}
874
875#define TYPE_SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD { \
876 /* SCTP_STATE_CLOSED */ \
877 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
878 /* SCTP_STATE_COOKIE_WAIT */ \
879 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
880 /* SCTP_STATE_COOKIE_ECHOED */ \
881 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
882 /* SCTP_STATE_ESTABLISHED */ \
883 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
884 /* SCTP_STATE_SHUTDOWN_PENDING */ \
885 TYPE_SCTP_FUNC(sctp_sf_t5_timer_expire), \
886 /* SCTP_STATE_SHUTDOWN_SENT */ \
887 TYPE_SCTP_FUNC(sctp_sf_t5_timer_expire), \
888 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
889 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
890 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
891 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
892}
893
894#define TYPE_SCTP_EVENT_TIMEOUT_HEARTBEAT { \
895 /* SCTP_STATE_CLOSED */ \
896 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
897 /* SCTP_STATE_COOKIE_WAIT */ \
898 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
899 /* SCTP_STATE_COOKIE_ECHOED */ \
900 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
901 /* SCTP_STATE_ESTABLISHED */ \
902 TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
903 /* SCTP_STATE_SHUTDOWN_PENDING */ \
904 TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
905 /* SCTP_STATE_SHUTDOWN_SENT */ \
906 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
907 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
908 TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
909 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
910 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
911}
912
913#define TYPE_SCTP_EVENT_TIMEOUT_SACK { \
914 /* SCTP_STATE_CLOSED */ \
915 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
916 /* SCTP_STATE_COOKIE_WAIT */ \
917 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
918 /* SCTP_STATE_COOKIE_ECHOED */ \
919 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
920 /* SCTP_STATE_ESTABLISHED */ \
921 TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
922 /* SCTP_STATE_SHUTDOWN_PENDING */ \
923 TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
924 /* SCTP_STATE_SHUTDOWN_SENT */ \
925 TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
926 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
927 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
928 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
929 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
930}
931
932#define TYPE_SCTP_EVENT_TIMEOUT_AUTOCLOSE { \
933 /* SCTP_STATE_CLOSED */ \
934 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
935 /* SCTP_STATE_COOKIE_WAIT */ \
936 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
937 /* SCTP_STATE_COOKIE_ECHOED */ \
938 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
939 /* SCTP_STATE_ESTABLISHED */ \
940 TYPE_SCTP_FUNC(sctp_sf_autoclose_timer_expire), \
941 /* SCTP_STATE_SHUTDOWN_PENDING */ \
942 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
943 /* SCTP_STATE_SHUTDOWN_SENT */ \
944 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
945 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
946 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
947 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
948 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
949}
950
951#define TYPE_SCTP_EVENT_TIMEOUT_RECONF { \
952 /* SCTP_STATE_CLOSED */ \
953 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
954 /* SCTP_STATE_COOKIE_WAIT */ \
955 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
956 /* SCTP_STATE_COOKIE_ECHOED */ \
957 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
958 /* SCTP_STATE_ESTABLISHED */ \
959 TYPE_SCTP_FUNC(sctp_sf_send_reconf), \
960 /* SCTP_STATE_SHUTDOWN_PENDING */ \
961 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
962 /* SCTP_STATE_SHUTDOWN_SENT */ \
963 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
964 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
965 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
966 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
967 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
968}
969
970#define TYPE_SCTP_EVENT_TIMEOUT_PROBE { \
971 /* SCTP_STATE_CLOSED */ \
972 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
973 /* SCTP_STATE_COOKIE_WAIT */ \
974 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
975 /* SCTP_STATE_COOKIE_ECHOED */ \
976 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
977 /* SCTP_STATE_ESTABLISHED */ \
978 TYPE_SCTP_FUNC(sctp_sf_send_probe), \
979 /* SCTP_STATE_SHUTDOWN_PENDING */ \
980 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
981 /* SCTP_STATE_SHUTDOWN_SENT */ \
982 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
983 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
984 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
985 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
986 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
987}
988
989static const struct sctp_sm_table_entry
990timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][SCTP_STATE_NUM_STATES] = {
991 TYPE_SCTP_EVENT_TIMEOUT_NONE,
992 TYPE_SCTP_EVENT_TIMEOUT_T1_COOKIE,
993 TYPE_SCTP_EVENT_TIMEOUT_T1_INIT,
994 TYPE_SCTP_EVENT_TIMEOUT_T2_SHUTDOWN,
995 TYPE_SCTP_EVENT_TIMEOUT_T3_RTX,
996 TYPE_SCTP_EVENT_TIMEOUT_T4_RTO,
997 TYPE_SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD,
998 TYPE_SCTP_EVENT_TIMEOUT_HEARTBEAT,
999 TYPE_SCTP_EVENT_TIMEOUT_RECONF,
1000 TYPE_SCTP_EVENT_TIMEOUT_PROBE,
1001 TYPE_SCTP_EVENT_TIMEOUT_SACK,
1002 TYPE_SCTP_EVENT_TIMEOUT_AUTOCLOSE,
1003};
1004
1005static const struct sctp_sm_table_entry *sctp_chunk_event_lookup(
1006 struct net *net,
1007 enum sctp_cid cid,
1008 enum sctp_state state)
1009{
1010 if (state > SCTP_STATE_MAX)
1011 return &bug;
1012
1013 if (cid == SCTP_CID_I_DATA)
1014 cid = SCTP_CID_DATA;
1015
1016 if (cid <= SCTP_CID_BASE_MAX)
1017 return &chunk_event_table[cid][state];
1018
1019 switch ((u16)cid) {
1020 case SCTP_CID_FWD_TSN:
1021 case SCTP_CID_I_FWD_TSN:
1022 return &prsctp_chunk_event_table[0][state];
1023
1024 case SCTP_CID_ASCONF:
1025 return &addip_chunk_event_table[0][state];
1026
1027 case SCTP_CID_ASCONF_ACK:
1028 return &addip_chunk_event_table[1][state];
1029
1030 case SCTP_CID_RECONF:
1031 return &reconf_chunk_event_table[0][state];
1032
1033 case SCTP_CID_AUTH:
1034 return &auth_chunk_event_table[0][state];
1035
1036 case SCTP_CID_PAD:
1037 return &pad_chunk_event_table[state];
1038 }
1039
1040 return &chunk_event_table_unknown[state];
1041}