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1/* SCTP kernel reference 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 reference Implementation
9 *
10 * These are the state tables for the SCTP state machine.
11 *
12 * The SCTP reference 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 * The SCTP reference 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, write to
26 * the Free Software Foundation, 59 Temple Place - Suite 330,
27 * Boston, MA 02111-1307, USA.
28 *
29 * Please send any bug reports or fixes you make to the
30 * email address(es):
31 * lksctp developers <lksctp-developers@lists.sourceforge.net>
32 *
33 * Or submit a bug report through the following website:
34 * http://www.sf.net/projects/lksctp
35 *
36 * Written or modified by:
37 * La Monte H.P. Yarroll <piggy@acm.org>
38 * Karl Knutson <karl@athena.chicago.il.us>
39 * Jon Grimm <jgrimm@us.ibm.com>
40 * Hui Huang <hui.huang@nokia.com>
41 * Daisy Chang <daisyc@us.ibm.com>
42 * Ardelle Fan <ardelle.fan@intel.com>
43 * Sridhar Samudrala <sri@us.ibm.com>
44 *
45 * Any bugs reported given to us we will try to fix... any fixes shared will
46 * be incorporated into the next SCTP release.
47 */
48
49#include <linux/skbuff.h>
50#include <net/sctp/sctp.h>
51#include <net/sctp/sm.h>
52
53static const sctp_sm_table_entry_t
54primitive_event_table[SCTP_NUM_PRIMITIVE_TYPES][SCTP_STATE_NUM_STATES];
55static const sctp_sm_table_entry_t
56other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STATES];
57static const sctp_sm_table_entry_t
58timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][SCTP_STATE_NUM_STATES];
59
60static const sctp_sm_table_entry_t *sctp_chunk_event_lookup(sctp_cid_t cid,
61 sctp_state_t state);
62
63
64static const sctp_sm_table_entry_t bug = {
65 .fn = sctp_sf_bug,
66 .name = "sctp_sf_bug"
67};
68
69#define DO_LOOKUP(_max, _type, _table) \
70 if ((event_subtype._type > (_max))) { \
71 printk(KERN_WARNING \
72 "sctp table %p possible attack:" \
73 " event %d exceeds max %d\n", \
74 _table, event_subtype._type, _max); \
75 return &bug; \
76 } \
77 return &_table[event_subtype._type][(int)state];
78
79const sctp_sm_table_entry_t *sctp_sm_lookup_event(sctp_event_t event_type,
80 sctp_state_t state,
81 sctp_subtype_t event_subtype)
82{
83 switch (event_type) {
84 case SCTP_EVENT_T_CHUNK:
85 return sctp_chunk_event_lookup(event_subtype.chunk, state);
86 break;
87 case SCTP_EVENT_T_TIMEOUT:
88 DO_LOOKUP(SCTP_EVENT_TIMEOUT_MAX, timeout,
89 timeout_event_table);
90 break;
91
92 case SCTP_EVENT_T_OTHER:
93 DO_LOOKUP(SCTP_EVENT_OTHER_MAX, other, other_event_table);
94 break;
95
96 case SCTP_EVENT_T_PRIMITIVE:
97 DO_LOOKUP(SCTP_EVENT_PRIMITIVE_MAX, primitive,
98 primitive_event_table);
99 break;
100
101 default:
102 /* Yikes! We got an illegal event type. */
103 return &bug;
104 };
105}
106
107#define TYPE_SCTP_DATA { \
108 /* SCTP_STATE_EMPTY */ \
109 {.fn = sctp_sf_ootb, .name = "sctp_sf_ootb"}, \
110 /* SCTP_STATE_CLOSED */ \
111 {.fn = sctp_sf_tabort_8_4_8, .name = "sctp_sf_tabort_8_4_8"}, \
112 /* SCTP_STATE_COOKIE_WAIT */ \
113 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
114 /* SCTP_STATE_COOKIE_ECHOED */ \
115 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
116 /* SCTP_STATE_ESTABLISHED */ \
117 {.fn = sctp_sf_eat_data_6_2, .name = "sctp_sf_eat_data_6_2"}, \
118 /* SCTP_STATE_SHUTDOWN_PENDING */ \
119 {.fn = sctp_sf_eat_data_6_2, .name = "sctp_sf_eat_data_6_2"}, \
120 /* SCTP_STATE_SHUTDOWN_SENT */ \
121 {.fn = sctp_sf_eat_data_fast_4_4, .name = "sctp_sf_eat_data_fast_4_4"}, \
122 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
123 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
124 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
125 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
126} /* TYPE_SCTP_DATA */
127
128#define TYPE_SCTP_INIT { \
129 /* SCTP_STATE_EMPTY */ \
130 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
131 /* SCTP_STATE_CLOSED */ \
132 {.fn = sctp_sf_do_5_1B_init, .name = "sctp_sf_do_5_1B_init"}, \
133 /* SCTP_STATE_COOKIE_WAIT */ \
134 {.fn = sctp_sf_do_5_2_1_siminit, .name = "sctp_sf_do_5_2_1_siminit"}, \
135 /* SCTP_STATE_COOKIE_ECHOED */ \
136 {.fn = sctp_sf_do_5_2_1_siminit, .name = "sctp_sf_do_5_2_1_siminit"}, \
137 /* SCTP_STATE_ESTABLISHED */ \
138 {.fn = sctp_sf_do_5_2_2_dupinit, .name = "sctp_sf_do_5_2_2_dupinit"}, \
139 /* SCTP_STATE_SHUTDOWN_PENDING */ \
140 {.fn = sctp_sf_do_5_2_2_dupinit, .name = "sctp_sf_do_5_2_2_dupinit"}, \
141 /* SCTP_STATE_SHUTDOWN_SENT */ \
142 {.fn = sctp_sf_do_5_2_2_dupinit, .name = "sctp_sf_do_5_2_2_dupinit"}, \
143 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
144 {.fn = sctp_sf_do_5_2_2_dupinit, .name = "sctp_sf_do_5_2_2_dupinit"}, \
145 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
146 {.fn = sctp_sf_do_9_2_reshutack, .name = "sctp_sf_do_9_2_reshutack"}, \
147} /* TYPE_SCTP_INIT */
148
149#define TYPE_SCTP_INIT_ACK { \
150 /* SCTP_STATE_EMPTY */ \
151 {.fn = sctp_sf_ootb, .name = "sctp_sf_ootb"}, \
152 /* SCTP_STATE_CLOSED */ \
153 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
154 /* SCTP_STATE_COOKIE_WAIT */ \
155 {.fn = sctp_sf_do_5_1C_ack, .name = "sctp_sf_do_5_1C_ack"}, \
156 /* SCTP_STATE_COOKIE_ECHOED */ \
157 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
158 /* SCTP_STATE_ESTABLISHED */ \
159 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
160 /* SCTP_STATE_SHUTDOWN_PENDING */ \
161 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
162 /* SCTP_STATE_SHUTDOWN_SENT */ \
163 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
164 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
165 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
166 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
167 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
168} /* TYPE_SCTP_INIT_ACK */
169
170#define TYPE_SCTP_SACK { \
171 /* SCTP_STATE_EMPTY */ \
172 {.fn = sctp_sf_ootb, .name = "sctp_sf_ootb"}, \
173 /* SCTP_STATE_CLOSED */ \
174 {.fn = sctp_sf_tabort_8_4_8, .name = "sctp_sf_tabort_8_4_8"}, \
175 /* SCTP_STATE_COOKIE_WAIT */ \
176 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
177 /* SCTP_STATE_COOKIE_ECHOED */ \
178 {.fn = sctp_sf_eat_sack_6_2, .name = "sctp_sf_eat_sack_6_2"}, \
179 /* SCTP_STATE_ESTABLISHED */ \
180 {.fn = sctp_sf_eat_sack_6_2, .name = "sctp_sf_eat_sack_6_2"}, \
181 /* SCTP_STATE_SHUTDOWN_PENDING */ \
182 {.fn = sctp_sf_eat_sack_6_2, .name = "sctp_sf_eat_sack_6_2"}, \
183 /* SCTP_STATE_SHUTDOWN_SENT */ \
184 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
185 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
186 {.fn = sctp_sf_eat_sack_6_2, .name = "sctp_sf_eat_sack_6_2"}, \
187 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
188 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
189} /* TYPE_SCTP_SACK */
190
191#define TYPE_SCTP_HEARTBEAT { \
192 /* SCTP_STATE_EMPTY */ \
193 {.fn = sctp_sf_ootb, .name = "sctp_sf_ootb"}, \
194 /* SCTP_STATE_CLOSED */ \
195 {.fn = sctp_sf_tabort_8_4_8, .name = "sctp_sf_tabort_8_4_8"}, \
196 /* SCTP_STATE_COOKIE_WAIT */ \
197 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
198 /* SCTP_STATE_COOKIE_ECHOED */ \
199 {.fn = sctp_sf_beat_8_3, .name = "sctp_sf_beat_8_3"}, \
200 /* SCTP_STATE_ESTABLISHED */ \
201 {.fn = sctp_sf_beat_8_3, .name = "sctp_sf_beat_8_3"}, \
202 /* SCTP_STATE_SHUTDOWN_PENDING */ \
203 {.fn = sctp_sf_beat_8_3, .name = "sctp_sf_beat_8_3"}, \
204 /* SCTP_STATE_SHUTDOWN_SENT */ \
205 {.fn = sctp_sf_beat_8_3, .name = "sctp_sf_beat_8_3"}, \
206 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
207 {.fn = sctp_sf_beat_8_3, .name = "sctp_sf_beat_8_3"}, \
208 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
209 /* This should not happen, but we are nice. */ \
210 {.fn = sctp_sf_beat_8_3, .name = "sctp_sf_beat_8_3"}, \
211} /* TYPE_SCTP_HEARTBEAT */
212
213#define TYPE_SCTP_HEARTBEAT_ACK { \
214 /* SCTP_STATE_EMPTY */ \
215 {.fn = sctp_sf_ootb, .name = "sctp_sf_ootb"}, \
216 /* SCTP_STATE_CLOSED */ \
217 {.fn = sctp_sf_tabort_8_4_8, .name = "sctp_sf_tabort_8_4_8"}, \
218 /* SCTP_STATE_COOKIE_WAIT */ \
219 {.fn = sctp_sf_violation, .name = "sctp_sf_violation"}, \
220 /* SCTP_STATE_COOKIE_ECHOED */ \
221 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
222 /* SCTP_STATE_ESTABLISHED */ \
223 {.fn = sctp_sf_backbeat_8_3, .name = "sctp_sf_backbeat_8_3"}, \
224 /* SCTP_STATE_SHUTDOWN_PENDING */ \
225 {.fn = sctp_sf_backbeat_8_3, .name = "sctp_sf_backbeat_8_3"}, \
226 /* SCTP_STATE_SHUTDOWN_SENT */ \
227 {.fn = sctp_sf_backbeat_8_3, .name = "sctp_sf_backbeat_8_3"}, \
228 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
229 {.fn = sctp_sf_backbeat_8_3, .name = "sctp_sf_backbeat_8_3"}, \
230 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
231 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
232} /* TYPE_SCTP_HEARTBEAT_ACK */
233
234#define TYPE_SCTP_ABORT { \
235 /* SCTP_STATE_EMPTY */ \
236 {.fn = sctp_sf_ootb, .name = "sctp_sf_ootb"}, \
237 /* SCTP_STATE_CLOSED */ \
238 {.fn = sctp_sf_pdiscard, .name = "sctp_sf_pdiscard"}, \
239 /* SCTP_STATE_COOKIE_WAIT */ \
240 {.fn = sctp_sf_cookie_wait_abort, .name = "sctp_sf_cookie_wait_abort"}, \
241 /* SCTP_STATE_COOKIE_ECHOED */ \
242 {.fn = sctp_sf_cookie_echoed_abort, \
243 .name = "sctp_sf_cookie_echoed_abort"}, \
244 /* SCTP_STATE_ESTABLISHED */ \
245 {.fn = sctp_sf_do_9_1_abort, .name = "sctp_sf_do_9_1_abort"}, \
246 /* SCTP_STATE_SHUTDOWN_PENDING */ \
247 {.fn = sctp_sf_shutdown_pending_abort, \
248 .name = "sctp_sf_shutdown_pending_abort"}, \
249 /* SCTP_STATE_SHUTDOWN_SENT */ \
250 {.fn = sctp_sf_shutdown_sent_abort, \
251 .name = "sctp_sf_shutdown_sent_abort"}, \
252 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
253 {.fn = sctp_sf_do_9_1_abort, .name = "sctp_sf_do_9_1_abort"}, \
254 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
255 {.fn = sctp_sf_shutdown_ack_sent_abort, \
256 .name = "sctp_sf_shutdown_ack_sent_abort"}, \
257} /* TYPE_SCTP_ABORT */
258
259#define TYPE_SCTP_SHUTDOWN { \
260 /* SCTP_STATE_EMPTY */ \
261 {.fn = sctp_sf_ootb, .name = "sctp_sf_ootb"}, \
262 /* SCTP_STATE_CLOSED */ \
263 {.fn = sctp_sf_tabort_8_4_8, .name = "sctp_sf_tabort_8_4_8"}, \
264 /* SCTP_STATE_COOKIE_WAIT */ \
265 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
266 /* SCTP_STATE_COOKIE_ECHOED */ \
267 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
268 /* SCTP_STATE_ESTABLISHED */ \
269 {.fn = sctp_sf_do_9_2_shutdown, .name = "sctp_sf_do_9_2_shutdown"}, \
270 /* SCTP_STATE_SHUTDOWN_PENDING */ \
271 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
272 /* SCTP_STATE_SHUTDOWN_SENT */ \
273 {.fn = sctp_sf_do_9_2_shutdown_ack, \
274 .name = "sctp_sf_do_9_2_shutdown_ack"}, \
275 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
276 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
277 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
278 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
279} /* TYPE_SCTP_SHUTDOWN */
280
281#define TYPE_SCTP_SHUTDOWN_ACK { \
282 /* SCTP_STATE_EMPTY */ \
283 {.fn = sctp_sf_ootb, .name = "sctp_sf_ootb"}, \
284 /* SCTP_STATE_CLOSED */ \
285 {.fn = sctp_sf_ootb, .name = "sctp_sf_ootb"}, \
286 /* SCTP_STATE_COOKIE_WAIT */ \
287 {.fn = sctp_sf_do_8_5_1_E_sa, .name = "sctp_sf_do_8_5_1_E_sa"}, \
288 /* SCTP_STATE_COOKIE_ECHOED */ \
289 {.fn = sctp_sf_do_8_5_1_E_sa, .name = "sctp_sf_do_8_5_1_E_sa"}, \
290 /* SCTP_STATE_ESTABLISHED */ \
291 {.fn = sctp_sf_violation, .name = "sctp_sf_violation"}, \
292 /* SCTP_STATE_SHUTDOWN_PENDING */ \
293 {.fn = sctp_sf_violation, .name = "sctp_sf_violation"}, \
294 /* SCTP_STATE_SHUTDOWN_SENT */ \
295 {.fn = sctp_sf_do_9_2_final, .name = "sctp_sf_do_9_2_final"}, \
296 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
297 {.fn = sctp_sf_violation, .name = "sctp_sf_violation"}, \
298 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
299 {.fn = sctp_sf_do_9_2_final, .name = "sctp_sf_do_9_2_final"}, \
300} /* TYPE_SCTP_SHUTDOWN_ACK */
301
302#define TYPE_SCTP_ERROR { \
303 /* SCTP_STATE_EMPTY */ \
304 {.fn = sctp_sf_ootb, .name = "sctp_sf_ootb"}, \
305 /* SCTP_STATE_CLOSED */ \
306 {.fn = sctp_sf_tabort_8_4_8, .name = "sctp_sf_tabort_8_4_8"}, \
307 /* SCTP_STATE_COOKIE_WAIT */ \
308 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
309 /* SCTP_STATE_COOKIE_ECHOED */ \
310 {.fn = sctp_sf_cookie_echoed_err, .name = "sctp_sf_cookie_echoed_err"}, \
311 /* SCTP_STATE_ESTABLISHED */ \
312 {.fn = sctp_sf_operr_notify, .name = "sctp_sf_operr_notify"}, \
313 /* SCTP_STATE_SHUTDOWN_PENDING */ \
314 {.fn = sctp_sf_operr_notify, .name = "sctp_sf_operr_notify"}, \
315 /* SCTP_STATE_SHUTDOWN_SENT */ \
316 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
317 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
318 {.fn = sctp_sf_operr_notify, .name = "sctp_sf_operr_notify"}, \
319 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
320 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
321} /* TYPE_SCTP_ERROR */
322
323#define TYPE_SCTP_COOKIE_ECHO { \
324 /* SCTP_STATE_EMPTY */ \
325 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
326 /* SCTP_STATE_CLOSED */ \
327 {.fn = sctp_sf_do_5_1D_ce, .name = "sctp_sf_do_5_1D_ce"}, \
328 /* SCTP_STATE_COOKIE_WAIT */ \
329 {.fn = sctp_sf_do_5_2_4_dupcook, .name = "sctp_sf_do_5_2_4_dupcook"}, \
330 /* SCTP_STATE_COOKIE_ECHOED */ \
331 {.fn = sctp_sf_do_5_2_4_dupcook, .name = "sctp_sf_do_5_2_4_dupcook"}, \
332 /* SCTP_STATE_ESTABLISHED */ \
333 {.fn = sctp_sf_do_5_2_4_dupcook, .name = "sctp_sf_do_5_2_4_dupcook"}, \
334 /* SCTP_STATE_SHUTDOWN_PENDING */ \
335 {.fn = sctp_sf_do_5_2_4_dupcook, .name = "sctp_sf_do_5_2_4_dupcook"}, \
336 /* SCTP_STATE_SHUTDOWN_SENT */ \
337 {.fn = sctp_sf_do_5_2_4_dupcook, .name = "sctp_sf_do_5_2_4_dupcook"}, \
338 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
339 {.fn = sctp_sf_do_5_2_4_dupcook, .name = "sctp_sf_do_5_2_4_dupcook"}, \
340 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
341 {.fn = sctp_sf_do_5_2_4_dupcook, .name = "sctp_sf_do_5_2_4_dupcook"}, \
342} /* TYPE_SCTP_COOKIE_ECHO */
343
344#define TYPE_SCTP_COOKIE_ACK { \
345 /* SCTP_STATE_EMPTY */ \
346 {.fn = sctp_sf_ootb, .name = "sctp_sf_ootb"}, \
347 /* SCTP_STATE_CLOSED */ \
348 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
349 /* SCTP_STATE_COOKIE_WAIT */ \
350 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
351 /* SCTP_STATE_COOKIE_ECHOED */ \
352 {.fn = sctp_sf_do_5_1E_ca, .name = "sctp_sf_do_5_1E_ca"}, \
353 /* SCTP_STATE_ESTABLISHED */ \
354 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
355 /* SCTP_STATE_SHUTDOWN_PENDING */ \
356 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
357 /* SCTP_STATE_SHUTDOWN_SENT */ \
358 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
359 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
360 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
361 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
362 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
363} /* TYPE_SCTP_COOKIE_ACK */
364
365#define TYPE_SCTP_ECN_ECNE { \
366 /* SCTP_STATE_EMPTY */ \
367 {.fn = sctp_sf_ootb, .name = "sctp_sf_ootb"}, \
368 /* SCTP_STATE_CLOSED */ \
369 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
370 /* SCTP_STATE_COOKIE_WAIT */ \
371 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
372 /* SCTP_STATE_COOKIE_ECHOED */ \
373 {.fn = sctp_sf_do_ecne, .name = "sctp_sf_do_ecne"}, \
374 /* SCTP_STATE_ESTABLISHED */ \
375 {.fn = sctp_sf_do_ecne, .name = "sctp_sf_do_ecne"}, \
376 /* SCTP_STATE_SHUTDOWN_PENDING */ \
377 {.fn = sctp_sf_do_ecne, .name = "sctp_sf_do_ecne"}, \
378 /* SCTP_STATE_SHUTDOWN_SENT */ \
379 {.fn = sctp_sf_do_ecne, .name = "sctp_sf_do_ecne"}, \
380 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
381 {.fn = sctp_sf_do_ecne, .name = "sctp_sf_do_ecne"}, \
382 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
383 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
384} /* TYPE_SCTP_ECN_ECNE */
385
386#define TYPE_SCTP_ECN_CWR { \
387 /* SCTP_STATE_EMPTY */ \
388 {.fn = sctp_sf_ootb, .name = "sctp_sf_ootb"}, \
389 /* SCTP_STATE_CLOSED */ \
390 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
391 /* SCTP_STATE_COOKIE_WAIT */ \
392 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
393 /* SCTP_STATE_COOKIE_ECHOED */ \
394 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
395 /* SCTP_STATE_ESTABLISHED */ \
396 {.fn = sctp_sf_do_ecn_cwr, .name = "sctp_sf_do_ecn_cwr"}, \
397 /* SCTP_STATE_SHUTDOWN_PENDING */ \
398 {.fn = sctp_sf_do_ecn_cwr, .name = "sctp_sf_do_ecn_cwr"}, \
399 /* SCTP_STATE_SHUTDOWN_SENT */ \
400 {.fn = sctp_sf_do_ecn_cwr, .name = "sctp_sf_do_ecn_cwr"}, \
401 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
402 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
403 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
404 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
405} /* TYPE_SCTP_ECN_CWR */
406
407#define TYPE_SCTP_SHUTDOWN_COMPLETE { \
408 /* SCTP_STATE_EMPTY */ \
409 {.fn = sctp_sf_ootb, .name = "sctp_sf_ootb"}, \
410 /* SCTP_STATE_CLOSED */ \
411 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
412 /* SCTP_STATE_COOKIE_WAIT */ \
413 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
414 /* SCTP_STATE_COOKIE_ECHOED */ \
415 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
416 /* SCTP_STATE_ESTABLISHED */ \
417 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
418 /* SCTP_STATE_SHUTDOWN_PENDING */ \
419 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
420 /* SCTP_STATE_SHUTDOWN_SENT */ \
421 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
422 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
423 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
424 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
425 {.fn = sctp_sf_do_4_C, .name = "sctp_sf_do_4_C"}, \
426} /* TYPE_SCTP_SHUTDOWN_COMPLETE */
427
428/* The primary index for this table is the chunk type.
429 * The secondary index for this table is the state.
430 *
431 * For base protocol (RFC 2960).
432 */
433static const sctp_sm_table_entry_t chunk_event_table[SCTP_NUM_BASE_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
434 TYPE_SCTP_DATA,
435 TYPE_SCTP_INIT,
436 TYPE_SCTP_INIT_ACK,
437 TYPE_SCTP_SACK,
438 TYPE_SCTP_HEARTBEAT,
439 TYPE_SCTP_HEARTBEAT_ACK,
440 TYPE_SCTP_ABORT,
441 TYPE_SCTP_SHUTDOWN,
442 TYPE_SCTP_SHUTDOWN_ACK,
443 TYPE_SCTP_ERROR,
444 TYPE_SCTP_COOKIE_ECHO,
445 TYPE_SCTP_COOKIE_ACK,
446 TYPE_SCTP_ECN_ECNE,
447 TYPE_SCTP_ECN_CWR,
448 TYPE_SCTP_SHUTDOWN_COMPLETE,
449}; /* state_fn_t chunk_event_table[][] */
450
451#define TYPE_SCTP_ASCONF { \
452 /* SCTP_STATE_EMPTY */ \
453 {.fn = sctp_sf_ootb, .name = "sctp_sf_ootb"}, \
454 /* SCTP_STATE_CLOSED */ \
455 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
456 /* SCTP_STATE_COOKIE_WAIT */ \
457 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
458 /* SCTP_STATE_COOKIE_ECHOED */ \
459 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
460 /* SCTP_STATE_ESTABLISHED */ \
461 {.fn = sctp_sf_do_asconf, .name = "sctp_sf_do_asconf"}, \
462 /* SCTP_STATE_SHUTDOWN_PENDING */ \
463 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
464 /* SCTP_STATE_SHUTDOWN_SENT */ \
465 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
466 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
467 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
468 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
469 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
470} /* TYPE_SCTP_ASCONF */
471
472#define TYPE_SCTP_ASCONF_ACK { \
473 /* SCTP_STATE_EMPTY */ \
474 {.fn = sctp_sf_ootb, .name = "sctp_sf_ootb"}, \
475 /* SCTP_STATE_CLOSED */ \
476 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
477 /* SCTP_STATE_COOKIE_WAIT */ \
478 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
479 /* SCTP_STATE_COOKIE_ECHOED */ \
480 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
481 /* SCTP_STATE_ESTABLISHED */ \
482 {.fn = sctp_sf_do_asconf_ack, .name = "sctp_sf_do_asconf_ack"}, \
483 /* SCTP_STATE_SHUTDOWN_PENDING */ \
484 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
485 /* SCTP_STATE_SHUTDOWN_SENT */ \
486 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
487 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
488 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
489 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
490 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
491} /* TYPE_SCTP_ASCONF_ACK */
492
493/* The primary index for this table is the chunk type.
494 * The secondary index for this table is the state.
495 */
496static const sctp_sm_table_entry_t addip_chunk_event_table[SCTP_NUM_ADDIP_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
497 TYPE_SCTP_ASCONF,
498 TYPE_SCTP_ASCONF_ACK,
499}; /*state_fn_t addip_chunk_event_table[][] */
500
501#define TYPE_SCTP_FWD_TSN { \
502 /* SCTP_STATE_EMPTY */ \
503 {.fn = sctp_sf_ootb, .name = "sctp_sf_ootb"}, \
504 /* SCTP_STATE_CLOSED */ \
505 {.fn = sctp_sf_tabort_8_4_8, .name = "sctp_sf_tabort_8_4_8"}, \
506 /* SCTP_STATE_COOKIE_WAIT */ \
507 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
508 /* SCTP_STATE_COOKIE_ECHOED */ \
509 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
510 /* SCTP_STATE_ESTABLISHED */ \
511 {.fn = sctp_sf_eat_fwd_tsn, .name = "sctp_sf_eat_fwd_tsn"}, \
512 /* SCTP_STATE_SHUTDOWN_PENDING */ \
513 {.fn = sctp_sf_eat_fwd_tsn, .name = "sctp_sf_eat_fwd_tsn"}, \
514 /* SCTP_STATE_SHUTDOWN_SENT */ \
515 {.fn = sctp_sf_eat_fwd_tsn_fast, .name = "sctp_sf_eat_fwd_tsn_fast"}, \
516 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
517 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
518 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
519 {.fn = sctp_sf_discard_chunk, .name = "sctp_sf_discard_chunk"}, \
520} /* TYPE_SCTP_FWD_TSN */
521
522/* The primary index for this table is the chunk type.
523 * The secondary index for this table is the state.
524 */
525static const sctp_sm_table_entry_t prsctp_chunk_event_table[SCTP_NUM_PRSCTP_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
526 TYPE_SCTP_FWD_TSN,
527}; /*state_fn_t prsctp_chunk_event_table[][] */
528
529static const sctp_sm_table_entry_t
530chunk_event_table_unknown[SCTP_STATE_NUM_STATES] = {
531 /* SCTP_STATE_EMPTY */
532 {.fn = sctp_sf_ootb, .name = "sctp_sf_ootb"},
533 /* SCTP_STATE_CLOSED */
534 {.fn = sctp_sf_tabort_8_4_8, .name = "sctp_sf_tabort_8_4_8"},
535 /* SCTP_STATE_COOKIE_WAIT */
536 {.fn = sctp_sf_unk_chunk, .name = "sctp_sf_unk_chunk"},
537 /* SCTP_STATE_COOKIE_ECHOED */
538 {.fn = sctp_sf_unk_chunk, .name = "sctp_sf_unk_chunk"},
539 /* SCTP_STATE_ESTABLISHED */
540 {.fn = sctp_sf_unk_chunk, .name = "sctp_sf_unk_chunk"},
541 /* SCTP_STATE_SHUTDOWN_PENDING */
542 {.fn = sctp_sf_unk_chunk, .name = "sctp_sf_unk_chunk"},
543 /* SCTP_STATE_SHUTDOWN_SENT */
544 {.fn = sctp_sf_unk_chunk, .name = "sctp_sf_unk_chunk"},
545 /* SCTP_STATE_SHUTDOWN_RECEIVED */
546 {.fn = sctp_sf_unk_chunk, .name = "sctp_sf_unk_chunk"},
547 /* SCTP_STATE_SHUTDOWN_ACK_SENT */
548 {.fn = sctp_sf_unk_chunk, .name = "sctp_sf_unk_chunk"},
549}; /* chunk unknown */
550
551
552#define TYPE_SCTP_PRIMITIVE_ASSOCIATE { \
553 /* SCTP_STATE_EMPTY */ \
554 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
555 /* SCTP_STATE_CLOSED */ \
556 {.fn = sctp_sf_do_prm_asoc, .name = "sctp_sf_do_prm_asoc"}, \
557 /* SCTP_STATE_COOKIE_WAIT */ \
558 {.fn = sctp_sf_not_impl, .name = "sctp_sf_not_impl"}, \
559 /* SCTP_STATE_COOKIE_ECHOED */ \
560 {.fn = sctp_sf_not_impl, .name = "sctp_sf_not_impl"}, \
561 /* SCTP_STATE_ESTABLISHED */ \
562 {.fn = sctp_sf_not_impl, .name = "sctp_sf_not_impl"}, \
563 /* SCTP_STATE_SHUTDOWN_PENDING */ \
564 {.fn = sctp_sf_not_impl, .name = "sctp_sf_not_impl"}, \
565 /* SCTP_STATE_SHUTDOWN_SENT */ \
566 {.fn = sctp_sf_not_impl, .name = "sctp_sf_not_impl"}, \
567 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
568 {.fn = sctp_sf_not_impl, .name = "sctp_sf_not_impl"}, \
569 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
570 {.fn = sctp_sf_not_impl, .name = "sctp_sf_not_impl"}, \
571} /* TYPE_SCTP_PRIMITIVE_ASSOCIATE */
572
573#define TYPE_SCTP_PRIMITIVE_SHUTDOWN { \
574 /* SCTP_STATE_EMPTY */ \
575 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
576 /* SCTP_STATE_CLOSED */ \
577 {.fn = sctp_sf_error_closed, .name = "sctp_sf_error_closed"}, \
578 /* SCTP_STATE_COOKIE_WAIT */ \
579 {.fn = sctp_sf_cookie_wait_prm_shutdown, \
580 .name = "sctp_sf_cookie_wait_prm_shutdown"}, \
581 /* SCTP_STATE_COOKIE_ECHOED */ \
582 {.fn = sctp_sf_cookie_echoed_prm_shutdown, \
583 .name = "sctp_sf_cookie_echoed_prm_shutdown"},\
584 /* SCTP_STATE_ESTABLISHED */ \
585 {.fn = sctp_sf_do_9_2_prm_shutdown, \
586 .name = "sctp_sf_do_9_2_prm_shutdown"}, \
587 /* SCTP_STATE_SHUTDOWN_PENDING */ \
588 {.fn = sctp_sf_ignore_primitive, .name = "sctp_sf_ignore_primitive"}, \
589 /* SCTP_STATE_SHUTDOWN_SENT */ \
590 {.fn = sctp_sf_ignore_primitive, .name = "sctp_sf_ignore_primitive"}, \
591 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
592 {.fn = sctp_sf_ignore_primitive, .name = "sctp_sf_ignore_primitive"}, \
593 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
594 {.fn = sctp_sf_ignore_primitive, .name = "sctp_sf_ignore_primitive"}, \
595} /* TYPE_SCTP_PRIMITIVE_SHUTDOWN */
596
597#define TYPE_SCTP_PRIMITIVE_ABORT { \
598 /* SCTP_STATE_EMPTY */ \
599 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
600 /* SCTP_STATE_CLOSED */ \
601 {.fn = sctp_sf_error_closed, .name = "sctp_sf_error_closed"}, \
602 /* SCTP_STATE_COOKIE_WAIT */ \
603 {.fn = sctp_sf_cookie_wait_prm_abort, \
604 .name = "sctp_sf_cookie_wait_prm_abort"}, \
605 /* SCTP_STATE_COOKIE_ECHOED */ \
606 {.fn = sctp_sf_cookie_echoed_prm_abort, \
607 .name = "sctp_sf_cookie_echoed_prm_abort"}, \
608 /* SCTP_STATE_ESTABLISHED */ \
609 {.fn = sctp_sf_do_9_1_prm_abort, \
610 .name = "sctp_sf_do_9_1_prm_abort"}, \
611 /* SCTP_STATE_SHUTDOWN_PENDING */ \
612 {.fn = sctp_sf_shutdown_pending_prm_abort, \
613 .name = "sctp_sf_shutdown_pending_prm_abort"}, \
614 /* SCTP_STATE_SHUTDOWN_SENT */ \
615 {.fn = sctp_sf_shutdown_sent_prm_abort, \
616 .name = "sctp_sf_shutdown_sent_prm_abort"}, \
617 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
618 {.fn = sctp_sf_do_9_1_prm_abort, \
619 .name = "sctp_sf_do_9_1_prm_abort"}, \
620 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
621 {.fn = sctp_sf_shutdown_ack_sent_prm_abort, \
622 .name = "sctp_sf_shutdown_ack_sent_prm_abort"}, \
623} /* TYPE_SCTP_PRIMITIVE_ABORT */
624
625#define TYPE_SCTP_PRIMITIVE_SEND { \
626 /* SCTP_STATE_EMPTY */ \
627 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
628 /* SCTP_STATE_CLOSED */ \
629 {.fn = sctp_sf_error_closed, .name = "sctp_sf_error_closed"}, \
630 /* SCTP_STATE_COOKIE_WAIT */ \
631 {.fn = sctp_sf_do_prm_send, .name = "sctp_sf_do_prm_send"}, \
632 /* SCTP_STATE_COOKIE_ECHOED */ \
633 {.fn = sctp_sf_do_prm_send, .name = "sctp_sf_do_prm_send"}, \
634 /* SCTP_STATE_ESTABLISHED */ \
635 {.fn = sctp_sf_do_prm_send, .name = "sctp_sf_do_prm_send"}, \
636 /* SCTP_STATE_SHUTDOWN_PENDING */ \
637 {.fn = sctp_sf_error_shutdown, .name = "sctp_sf_error_shutdown"}, \
638 /* SCTP_STATE_SHUTDOWN_SENT */ \
639 {.fn = sctp_sf_error_shutdown, .name = "sctp_sf_error_shutdown"}, \
640 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
641 {.fn = sctp_sf_error_shutdown, .name = "sctp_sf_error_shutdown"}, \
642 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
643 {.fn = sctp_sf_error_shutdown, .name = "sctp_sf_error_shutdown"}, \
644} /* TYPE_SCTP_PRIMITIVE_SEND */
645
646#define TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT { \
647 /* SCTP_STATE_EMPTY */ \
648 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
649 /* SCTP_STATE_CLOSED */ \
650 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
651 /* SCTP_STATE_COOKIE_WAIT */ \
652 {.fn = sctp_sf_do_prm_requestheartbeat, \
653 .name = "sctp_sf_do_prm_requestheartbeat"}, \
654 /* SCTP_STATE_COOKIE_ECHOED */ \
655 {.fn = sctp_sf_do_prm_requestheartbeat, \
656 .name = "sctp_sf_do_prm_requestheartbeat"}, \
657 /* SCTP_STATE_ESTABLISHED */ \
658 {.fn = sctp_sf_do_prm_requestheartbeat, \
659 .name = "sctp_sf_do_prm_requestheartbeat"}, \
660 /* SCTP_STATE_SHUTDOWN_PENDING */ \
661 {.fn = sctp_sf_do_prm_requestheartbeat, \
662 .name = "sctp_sf_do_prm_requestheartbeat"}, \
663 /* SCTP_STATE_SHUTDOWN_SENT */ \
664 {.fn = sctp_sf_do_prm_requestheartbeat, \
665 .name = "sctp_sf_do_prm_requestheartbeat"}, \
666 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
667 {.fn = sctp_sf_do_prm_requestheartbeat, \
668 .name = "sctp_sf_do_prm_requestheartbeat"}, \
669 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
670 {.fn = sctp_sf_do_prm_requestheartbeat, \
671 .name = "sctp_sf_do_prm_requestheartbeat"}, \
672} /* TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT */
673
674#define TYPE_SCTP_PRIMITIVE_ASCONF { \
675 /* SCTP_STATE_EMPTY */ \
676 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
677 /* SCTP_STATE_CLOSED */ \
678 {.fn = sctp_sf_error_closed, .name = "sctp_sf_error_closed"}, \
679 /* SCTP_STATE_COOKIE_WAIT */ \
680 {.fn = sctp_sf_error_closed, .name = "sctp_sf_error_closed"}, \
681 /* SCTP_STATE_COOKIE_ECHOED */ \
682 {.fn = sctp_sf_error_closed, .name = "sctp_sf_error_closed"}, \
683 /* SCTP_STATE_ESTABLISHED */ \
684 {.fn = sctp_sf_do_prm_asconf, .name = "sctp_sf_do_prm_asconf"}, \
685 /* SCTP_STATE_SHUTDOWN_PENDING */ \
686 {.fn = sctp_sf_error_shutdown, .name = "sctp_sf_error_shutdown"}, \
687 /* SCTP_STATE_SHUTDOWN_SENT */ \
688 {.fn = sctp_sf_error_shutdown, .name = "sctp_sf_error_shutdown"}, \
689 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
690 {.fn = sctp_sf_error_shutdown, .name = "sctp_sf_error_shutdown"}, \
691 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
692 {.fn = sctp_sf_error_shutdown, .name = "sctp_sf_error_shutdown"}, \
693} /* TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT */
694
695/* The primary index for this table is the primitive type.
696 * The secondary index for this table is the state.
697 */
698static const sctp_sm_table_entry_t primitive_event_table[SCTP_NUM_PRIMITIVE_TYPES][SCTP_STATE_NUM_STATES] = {
699 TYPE_SCTP_PRIMITIVE_ASSOCIATE,
700 TYPE_SCTP_PRIMITIVE_SHUTDOWN,
701 TYPE_SCTP_PRIMITIVE_ABORT,
702 TYPE_SCTP_PRIMITIVE_SEND,
703 TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT,
704 TYPE_SCTP_PRIMITIVE_ASCONF,
705};
706
707#define TYPE_SCTP_OTHER_NO_PENDING_TSN { \
708 /* SCTP_STATE_EMPTY */ \
709 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
710 /* SCTP_STATE_CLOSED */ \
711 {.fn = sctp_sf_ignore_other, .name = "sctp_sf_ignore_other"}, \
712 /* SCTP_STATE_COOKIE_WAIT */ \
713 {.fn = sctp_sf_ignore_other, .name = "sctp_sf_ignore_other"}, \
714 /* SCTP_STATE_COOKIE_ECHOED */ \
715 {.fn = sctp_sf_ignore_other, .name = "sctp_sf_ignore_other"}, \
716 /* SCTP_STATE_ESTABLISHED */ \
717 {.fn = sctp_sf_ignore_other, .name = "sctp_sf_ignore_other"}, \
718 /* SCTP_STATE_SHUTDOWN_PENDING */ \
719 {.fn = sctp_sf_do_9_2_start_shutdown, \
720 .name = "sctp_do_9_2_start_shutdown"}, \
721 /* SCTP_STATE_SHUTDOWN_SENT */ \
722 {.fn = sctp_sf_ignore_other, .name = "sctp_sf_ignore_other"}, \
723 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
724 {.fn = sctp_sf_do_9_2_shutdown_ack, \
725 .name = "sctp_sf_do_9_2_shutdown_ack"}, \
726 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
727 {.fn = sctp_sf_ignore_other, .name = "sctp_sf_ignore_other"}, \
728}
729
730#define TYPE_SCTP_OTHER_ICMP_PROTO_UNREACH { \
731 /* SCTP_STATE_EMPTY */ \
732 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
733 /* SCTP_STATE_CLOSED */ \
734 {.fn = sctp_sf_ignore_other, .name = "sctp_sf_ignore_other"}, \
735 /* SCTP_STATE_COOKIE_WAIT */ \
736 {.fn = sctp_sf_cookie_wait_icmp_abort, \
737 .name = "sctp_sf_cookie_wait_icmp_abort"}, \
738 /* SCTP_STATE_COOKIE_ECHOED */ \
739 {.fn = sctp_sf_ignore_other, .name = "sctp_sf_ignore_other"}, \
740 /* SCTP_STATE_ESTABLISHED */ \
741 {.fn = sctp_sf_ignore_other, .name = "sctp_sf_ignore_other"}, \
742 /* SCTP_STATE_SHUTDOWN_PENDING */ \
743 {.fn = sctp_sf_ignore_other, .name = "sctp_sf_ignore_other"}, \
744 /* SCTP_STATE_SHUTDOWN_SENT */ \
745 {.fn = sctp_sf_ignore_other, .name = "sctp_sf_ignore_other"}, \
746 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
747 {.fn = sctp_sf_ignore_other, .name = "sctp_sf_ignore_other"}, \
748 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
749 {.fn = sctp_sf_ignore_other, .name = "sctp_sf_ignore_other"}, \
750}
751
752static const sctp_sm_table_entry_t other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STATES] = {
753 TYPE_SCTP_OTHER_NO_PENDING_TSN,
754 TYPE_SCTP_OTHER_ICMP_PROTO_UNREACH,
755};
756
757#define TYPE_SCTP_EVENT_TIMEOUT_NONE { \
758 /* SCTP_STATE_EMPTY */ \
759 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
760 /* SCTP_STATE_CLOSED */ \
761 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
762 /* SCTP_STATE_COOKIE_WAIT */ \
763 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
764 /* SCTP_STATE_COOKIE_ECHOED */ \
765 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
766 /* SCTP_STATE_ESTABLISHED */ \
767 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
768 /* SCTP_STATE_SHUTDOWN_PENDING */ \
769 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
770 /* SCTP_STATE_SHUTDOWN_SENT */ \
771 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
772 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
773 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
774 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
775 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
776}
777
778#define TYPE_SCTP_EVENT_TIMEOUT_T1_COOKIE { \
779 /* SCTP_STATE_EMPTY */ \
780 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
781 /* SCTP_STATE_CLOSED */ \
782 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
783 /* SCTP_STATE_COOKIE_WAIT */ \
784 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
785 /* SCTP_STATE_COOKIE_ECHOED */ \
786 {.fn = sctp_sf_t1_timer_expire, .name = "sctp_sf_t1_timer_expire"}, \
787 /* SCTP_STATE_ESTABLISHED */ \
788 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
789 /* SCTP_STATE_SHUTDOWN_PENDING */ \
790 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
791 /* SCTP_STATE_SHUTDOWN_SENT */ \
792 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
793 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
794 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
795 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
796 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
797}
798
799#define TYPE_SCTP_EVENT_TIMEOUT_T1_INIT { \
800 /* SCTP_STATE_EMPTY */ \
801 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
802 /* SCTP_STATE_CLOSED */ \
803 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
804 /* SCTP_STATE_COOKIE_WAIT */ \
805 {.fn = sctp_sf_t1_timer_expire, .name = "sctp_sf_t1_timer_expire"}, \
806 /* SCTP_STATE_COOKIE_ECHOED */ \
807 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
808 /* SCTP_STATE_ESTABLISHED */ \
809 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
810 /* SCTP_STATE_SHUTDOWN_PENDING */ \
811 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
812 /* SCTP_STATE_SHUTDOWN_SENT */ \
813 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
814 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
815 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
816 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
817 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
818}
819
820#define TYPE_SCTP_EVENT_TIMEOUT_T2_SHUTDOWN { \
821 /* SCTP_STATE_EMPTY */ \
822 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
823 /* SCTP_STATE_CLOSED */ \
824 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
825 /* SCTP_STATE_COOKIE_WAIT */ \
826 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
827 /* SCTP_STATE_COOKIE_ECHOED */ \
828 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
829 /* SCTP_STATE_ESTABLISHED */ \
830 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
831 /* SCTP_STATE_SHUTDOWN_PENDING */ \
832 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
833 /* SCTP_STATE_SHUTDOWN_SENT */ \
834 {.fn = sctp_sf_t2_timer_expire, .name = "sctp_sf_t2_timer_expire"}, \
835 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
836 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
837 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
838 {.fn = sctp_sf_t2_timer_expire, .name = "sctp_sf_t2_timer_expire"}, \
839}
840
841#define TYPE_SCTP_EVENT_TIMEOUT_T3_RTX { \
842 /* SCTP_STATE_EMPTY */ \
843 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
844 /* SCTP_STATE_CLOSED */ \
845 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
846 /* SCTP_STATE_COOKIE_WAIT */ \
847 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
848 /* SCTP_STATE_COOKIE_ECHOED */ \
849 {.fn = sctp_sf_do_6_3_3_rtx, .name = "sctp_sf_do_6_3_3_rtx"}, \
850 /* SCTP_STATE_ESTABLISHED */ \
851 {.fn = sctp_sf_do_6_3_3_rtx, .name = "sctp_sf_do_6_3_3_rtx"}, \
852 /* SCTP_STATE_SHUTDOWN_PENDING */ \
853 {.fn = sctp_sf_do_6_3_3_rtx, .name = "sctp_sf_do_6_3_3_rtx"}, \
854 /* SCTP_STATE_SHUTDOWN_SENT */ \
855 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
856 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
857 {.fn = sctp_sf_do_6_3_3_rtx, .name = "sctp_sf_do_6_3_3_rtx"}, \
858 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
859 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
860}
861
862#define TYPE_SCTP_EVENT_TIMEOUT_T4_RTO { \
863 /* SCTP_STATE_EMPTY */ \
864 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
865 /* SCTP_STATE_CLOSED */ \
866 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
867 /* SCTP_STATE_COOKIE_WAIT */ \
868 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
869 /* SCTP_STATE_COOKIE_ECHOED */ \
870 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
871 /* SCTP_STATE_ESTABLISHED */ \
872 {.fn = sctp_sf_t4_timer_expire, .name = "sctp_sf_t4_timer_expire"}, \
873 /* SCTP_STATE_SHUTDOWN_PENDING */ \
874 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
875 /* SCTP_STATE_SHUTDOWN_SENT */ \
876 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
877 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
878 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
879 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
880 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
881}
882
883#define TYPE_SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD { \
884 /* SCTP_STATE_EMPTY */ \
885 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
886 /* SCTP_STATE_CLOSED */ \
887 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
888 /* SCTP_STATE_COOKIE_WAIT */ \
889 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
890 /* SCTP_STATE_COOKIE_ECHOED */ \
891 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
892 /* SCTP_STATE_ESTABLISHED */ \
893 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
894 /* SCTP_STATE_SHUTDOWN_PENDING */ \
895 {.fn = sctp_sf_t5_timer_expire, .name = "sctp_sf_t5_timer_expire"}, \
896 /* SCTP_STATE_SHUTDOWN_SENT */ \
897 {.fn = sctp_sf_t5_timer_expire, .name = "sctp_sf_t5_timer_expire"}, \
898 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
899 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
900 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
901 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
902}
903
904#define TYPE_SCTP_EVENT_TIMEOUT_HEARTBEAT { \
905 /* SCTP_STATE_EMPTY */ \
906 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
907 /* SCTP_STATE_CLOSED */ \
908 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
909 /* SCTP_STATE_COOKIE_WAIT */ \
910 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
911 /* SCTP_STATE_COOKIE_ECHOED */ \
912 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
913 /* SCTP_STATE_ESTABLISHED */ \
914 {.fn = sctp_sf_sendbeat_8_3, .name = "sctp_sf_sendbeat_8_3"}, \
915 /* SCTP_STATE_SHUTDOWN_PENDING */ \
916 {.fn = sctp_sf_sendbeat_8_3, .name = "sctp_sf_sendbeat_8_3"}, \
917 /* SCTP_STATE_SHUTDOWN_SENT */ \
918 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
919 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
920 {.fn = sctp_sf_sendbeat_8_3, .name = "sctp_sf_sendbeat_8_3"}, \
921 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
922 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
923}
924
925#define TYPE_SCTP_EVENT_TIMEOUT_SACK { \
926 /* SCTP_STATE_EMPTY */ \
927 {.fn = sctp_sf_bug, .name = "sctp_sf_bug"}, \
928 /* SCTP_STATE_CLOSED */ \
929 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
930 /* SCTP_STATE_COOKIE_WAIT */ \
931 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
932 /* SCTP_STATE_COOKIE_ECHOED */ \
933 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
934 /* SCTP_STATE_ESTABLISHED */ \
935 {.fn = sctp_sf_do_6_2_sack, .name = "sctp_sf_do_6_2_sack"}, \
936 /* SCTP_STATE_SHUTDOWN_PENDING */ \
937 {.fn = sctp_sf_do_6_2_sack, .name = "sctp_sf_do_6_2_sack"}, \
938 /* SCTP_STATE_SHUTDOWN_SENT */ \
939 {.fn = sctp_sf_do_6_2_sack, .name = "sctp_sf_do_6_2_sack"}, \
940 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
941 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
942 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
943 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
944}
945
946#define TYPE_SCTP_EVENT_TIMEOUT_AUTOCLOSE { \
947 /* SCTP_STATE_EMPTY */ \
948 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
949 /* SCTP_STATE_CLOSED */ \
950 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
951 /* SCTP_STATE_COOKIE_WAIT */ \
952 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
953 /* SCTP_STATE_COOKIE_ECHOED */ \
954 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
955 /* SCTP_STATE_ESTABLISHED */ \
956 {.fn = sctp_sf_autoclose_timer_expire, \
957 .name = "sctp_sf_autoclose_timer_expire"}, \
958 /* SCTP_STATE_SHUTDOWN_PENDING */ \
959 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
960 /* SCTP_STATE_SHUTDOWN_SENT */ \
961 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
962 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
963 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
964 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
965 {.fn = sctp_sf_timer_ignore, .name = "sctp_sf_timer_ignore"}, \
966}
967
968static const sctp_sm_table_entry_t timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][SCTP_STATE_NUM_STATES] = {
969 TYPE_SCTP_EVENT_TIMEOUT_NONE,
970 TYPE_SCTP_EVENT_TIMEOUT_T1_COOKIE,
971 TYPE_SCTP_EVENT_TIMEOUT_T1_INIT,
972 TYPE_SCTP_EVENT_TIMEOUT_T2_SHUTDOWN,
973 TYPE_SCTP_EVENT_TIMEOUT_T3_RTX,
974 TYPE_SCTP_EVENT_TIMEOUT_T4_RTO,
975 TYPE_SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD,
976 TYPE_SCTP_EVENT_TIMEOUT_HEARTBEAT,
977 TYPE_SCTP_EVENT_TIMEOUT_SACK,
978 TYPE_SCTP_EVENT_TIMEOUT_AUTOCLOSE,
979};
980
981static const sctp_sm_table_entry_t *sctp_chunk_event_lookup(sctp_cid_t cid,
982 sctp_state_t state)
983{
984 if (state > SCTP_STATE_MAX)
985 return &bug;
986
987 if (cid >= 0 && cid <= SCTP_CID_BASE_MAX)
988 return &chunk_event_table[cid][state];
989
990 if (sctp_prsctp_enable) {
991 if (cid == SCTP_CID_FWD_TSN)
992 return &prsctp_chunk_event_table[0][state];
993 }
994
995 if (sctp_addip_enable) {
996 if (cid == SCTP_CID_ASCONF)
997 return &addip_chunk_event_table[0][state];
998
999 if (cid == SCTP_CID_ASCONF_ACK)
1000 return &addip_chunk_event_table[1][state];
1001 }
1002
1003 return &chunk_event_table_unknown[state];
1004}
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-25 15:08:48 -0500