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sm_statetable.c
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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, 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 <[email protected]>
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 <[email protected]>
38  * Karl Knutson <[email protected]>
39  * Jon Grimm <[email protected]>
40  * Hui Huang <[email protected]>
41  * Daisy Chang <[email protected]>
42  * Ardelle Fan <[email protected]>
43  * Sridhar Samudrala <[email protected]>
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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
50 
51 #include <linux/skbuff.h>
52 #include <net/sctp/sctp.h>
53 #include <net/sctp/sm.h>
54 
55 static const sctp_sm_table_entry_t
56 primitive_event_table[SCTP_NUM_PRIMITIVE_TYPES][SCTP_STATE_NUM_STATES];
57 static const sctp_sm_table_entry_t
58 other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STATES];
59 static const sctp_sm_table_entry_t
60 timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][SCTP_STATE_NUM_STATES];
61 
62 static const sctp_sm_table_entry_t *sctp_chunk_event_lookup(struct net *net,
63  sctp_cid_t cid,
64  sctp_state_t state);
65 
66 
67 static const sctp_sm_table_entry_t bug = {
68  .fn = sctp_sf_bug,
69  .name = "sctp_sf_bug"
70 };
71 
72 #define DO_LOOKUP(_max, _type, _table) \
73 ({ \
74  const sctp_sm_table_entry_t *rtn; \
75  \
76  if ((event_subtype._type > (_max))) { \
77  pr_warn("table %p possible attack: event %d exceeds max %d\n", \
78  _table, event_subtype._type, _max); \
79  rtn = &bug; \
80  } else \
81  rtn = &_table[event_subtype._type][(int)state]; \
82  \
83  rtn; \
84 })
85 
86 const sctp_sm_table_entry_t *sctp_sm_lookup_event(struct net *net,
87  sctp_event_t event_type,
88  sctp_state_t state,
89  sctp_subtype_t event_subtype)
90 {
91  switch (event_type) {
92  case SCTP_EVENT_T_CHUNK:
93  return sctp_chunk_event_lookup(net, event_subtype.chunk, state);
94  case SCTP_EVENT_T_TIMEOUT:
95  return DO_LOOKUP(SCTP_EVENT_TIMEOUT_MAX, timeout,
96  timeout_event_table);
97  case SCTP_EVENT_T_OTHER:
98  return DO_LOOKUP(SCTP_EVENT_OTHER_MAX, other,
99  other_event_table);
100  case SCTP_EVENT_T_PRIMITIVE:
101  return DO_LOOKUP(SCTP_EVENT_PRIMITIVE_MAX, primitive,
102  primitive_event_table);
103  default:
104  /* Yikes! We got an illegal event type. */
105  return &bug;
106  }
107 }
108 
109 #define TYPE_SCTP_FUNC(func) {.fn = func, .name = #func}
110 
111 #define TYPE_SCTP_DATA { \
112  /* SCTP_STATE_CLOSED */ \
113  TYPE_SCTP_FUNC(sctp_sf_ootb), \
114  /* SCTP_STATE_COOKIE_WAIT */ \
115  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
116  /* SCTP_STATE_COOKIE_ECHOED */ \
117  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
118  /* SCTP_STATE_ESTABLISHED */ \
119  TYPE_SCTP_FUNC(sctp_sf_eat_data_6_2), \
120  /* SCTP_STATE_SHUTDOWN_PENDING */ \
121  TYPE_SCTP_FUNC(sctp_sf_eat_data_6_2), \
122  /* SCTP_STATE_SHUTDOWN_SENT */ \
123  TYPE_SCTP_FUNC(sctp_sf_eat_data_fast_4_4), \
124  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
125  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
126  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
127  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
128 } /* TYPE_SCTP_DATA */
129 
130 #define TYPE_SCTP_INIT { \
131  /* SCTP_STATE_CLOSED */ \
132  TYPE_SCTP_FUNC(sctp_sf_do_5_1B_init), \
133  /* SCTP_STATE_COOKIE_WAIT */ \
134  TYPE_SCTP_FUNC(sctp_sf_do_5_2_1_siminit), \
135  /* SCTP_STATE_COOKIE_ECHOED */ \
136  TYPE_SCTP_FUNC(sctp_sf_do_5_2_1_siminit), \
137  /* SCTP_STATE_ESTABLISHED */ \
138  TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
139  /* SCTP_STATE_SHUTDOWN_PENDING */ \
140  TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
141  /* SCTP_STATE_SHUTDOWN_SENT */ \
142  TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
143  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
144  TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
145  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
146  TYPE_SCTP_FUNC(sctp_sf_do_9_2_reshutack), \
147 } /* TYPE_SCTP_INIT */
148 
149 #define TYPE_SCTP_INIT_ACK { \
150  /* SCTP_STATE_CLOSED */ \
151  TYPE_SCTP_FUNC(sctp_sf_do_5_2_3_initack), \
152  /* SCTP_STATE_COOKIE_WAIT */ \
153  TYPE_SCTP_FUNC(sctp_sf_do_5_1C_ack), \
154  /* SCTP_STATE_COOKIE_ECHOED */ \
155  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
156  /* SCTP_STATE_ESTABLISHED */ \
157  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
158  /* SCTP_STATE_SHUTDOWN_PENDING */ \
159  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
160  /* SCTP_STATE_SHUTDOWN_SENT */ \
161  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
162  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
163  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
164  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
165  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
166 } /* TYPE_SCTP_INIT_ACK */
167 
168 #define TYPE_SCTP_SACK { \
169  /* SCTP_STATE_CLOSED */ \
170  TYPE_SCTP_FUNC(sctp_sf_ootb), \
171  /* SCTP_STATE_COOKIE_WAIT */ \
172  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
173  /* SCTP_STATE_COOKIE_ECHOED */ \
174  TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
175  /* SCTP_STATE_ESTABLISHED */ \
176  TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
177  /* SCTP_STATE_SHUTDOWN_PENDING */ \
178  TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
179  /* SCTP_STATE_SHUTDOWN_SENT */ \
180  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
181  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
182  TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
183  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
184  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
185 } /* TYPE_SCTP_SACK */
186 
187 #define TYPE_SCTP_HEARTBEAT { \
188  /* SCTP_STATE_CLOSED */ \
189  TYPE_SCTP_FUNC(sctp_sf_ootb), \
190  /* SCTP_STATE_COOKIE_WAIT */ \
191  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
192  /* SCTP_STATE_COOKIE_ECHOED */ \
193  TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
194  /* SCTP_STATE_ESTABLISHED */ \
195  TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
196  /* SCTP_STATE_SHUTDOWN_PENDING */ \
197  TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
198  /* SCTP_STATE_SHUTDOWN_SENT */ \
199  TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
200  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
201  TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
202  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
203  /* This should not happen, but we are nice. */ \
204  TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
205 } /* TYPE_SCTP_HEARTBEAT */
206 
207 #define TYPE_SCTP_HEARTBEAT_ACK { \
208  /* SCTP_STATE_CLOSED */ \
209  TYPE_SCTP_FUNC(sctp_sf_ootb), \
210  /* SCTP_STATE_COOKIE_WAIT */ \
211  TYPE_SCTP_FUNC(sctp_sf_violation), \
212  /* SCTP_STATE_COOKIE_ECHOED */ \
213  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
214  /* SCTP_STATE_ESTABLISHED */ \
215  TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
216  /* SCTP_STATE_SHUTDOWN_PENDING */ \
217  TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
218  /* SCTP_STATE_SHUTDOWN_SENT */ \
219  TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
220  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
221  TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
222  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
223  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
224 } /* TYPE_SCTP_HEARTBEAT_ACK */
225 
226 #define TYPE_SCTP_ABORT { \
227  /* SCTP_STATE_CLOSED */ \
228  TYPE_SCTP_FUNC(sctp_sf_pdiscard), \
229  /* SCTP_STATE_COOKIE_WAIT */ \
230  TYPE_SCTP_FUNC(sctp_sf_cookie_wait_abort), \
231  /* SCTP_STATE_COOKIE_ECHOED */ \
232  TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_abort), \
233  /* SCTP_STATE_ESTABLISHED */ \
234  TYPE_SCTP_FUNC(sctp_sf_do_9_1_abort), \
235  /* SCTP_STATE_SHUTDOWN_PENDING */ \
236  TYPE_SCTP_FUNC(sctp_sf_shutdown_pending_abort), \
237  /* SCTP_STATE_SHUTDOWN_SENT */ \
238  TYPE_SCTP_FUNC(sctp_sf_shutdown_sent_abort), \
239  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
240  TYPE_SCTP_FUNC(sctp_sf_do_9_1_abort), \
241  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
242  TYPE_SCTP_FUNC(sctp_sf_shutdown_ack_sent_abort), \
243 } /* TYPE_SCTP_ABORT */
244 
245 #define TYPE_SCTP_SHUTDOWN { \
246  /* SCTP_STATE_CLOSED */ \
247  TYPE_SCTP_FUNC(sctp_sf_ootb), \
248  /* SCTP_STATE_COOKIE_WAIT */ \
249  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
250  /* SCTP_STATE_COOKIE_ECHOED */ \
251  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
252  /* SCTP_STATE_ESTABLISHED */ \
253  TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown), \
254  /* SCTP_STATE_SHUTDOWN_PENDING */ \
255  TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown), \
256  /* SCTP_STATE_SHUTDOWN_SENT */ \
257  TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown_ack), \
258  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
259  TYPE_SCTP_FUNC(sctp_sf_do_9_2_shut_ctsn), \
260  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
261  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
262 } /* TYPE_SCTP_SHUTDOWN */
263 
264 #define TYPE_SCTP_SHUTDOWN_ACK { \
265  /* SCTP_STATE_CLOSED */ \
266  TYPE_SCTP_FUNC(sctp_sf_ootb), \
267  /* SCTP_STATE_COOKIE_WAIT */ \
268  TYPE_SCTP_FUNC(sctp_sf_do_8_5_1_E_sa), \
269  /* SCTP_STATE_COOKIE_ECHOED */ \
270  TYPE_SCTP_FUNC(sctp_sf_do_8_5_1_E_sa), \
271  /* SCTP_STATE_ESTABLISHED */ \
272  TYPE_SCTP_FUNC(sctp_sf_violation), \
273  /* SCTP_STATE_SHUTDOWN_PENDING */ \
274  TYPE_SCTP_FUNC(sctp_sf_violation), \
275  /* SCTP_STATE_SHUTDOWN_SENT */ \
276  TYPE_SCTP_FUNC(sctp_sf_do_9_2_final), \
277  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
278  TYPE_SCTP_FUNC(sctp_sf_violation), \
279  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
280  TYPE_SCTP_FUNC(sctp_sf_do_9_2_final), \
281 } /* TYPE_SCTP_SHUTDOWN_ACK */
282 
283 #define TYPE_SCTP_ERROR { \
284  /* SCTP_STATE_CLOSED */ \
285  TYPE_SCTP_FUNC(sctp_sf_ootb), \
286  /* SCTP_STATE_COOKIE_WAIT */ \
287  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
288  /* SCTP_STATE_COOKIE_ECHOED */ \
289  TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_err), \
290  /* SCTP_STATE_ESTABLISHED */ \
291  TYPE_SCTP_FUNC(sctp_sf_operr_notify), \
292  /* SCTP_STATE_SHUTDOWN_PENDING */ \
293  TYPE_SCTP_FUNC(sctp_sf_operr_notify), \
294  /* SCTP_STATE_SHUTDOWN_SENT */ \
295  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
296  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
297  TYPE_SCTP_FUNC(sctp_sf_operr_notify), \
298  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
299  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
300 } /* TYPE_SCTP_ERROR */
301 
302 #define TYPE_SCTP_COOKIE_ECHO { \
303  /* SCTP_STATE_CLOSED */ \
304  TYPE_SCTP_FUNC(sctp_sf_do_5_1D_ce), \
305  /* SCTP_STATE_COOKIE_WAIT */ \
306  TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
307  /* SCTP_STATE_COOKIE_ECHOED */ \
308  TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
309  /* SCTP_STATE_ESTABLISHED */ \
310  TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
311  /* SCTP_STATE_SHUTDOWN_PENDING */ \
312  TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
313  /* SCTP_STATE_SHUTDOWN_SENT */ \
314  TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
315  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
316  TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
317  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
318  TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
319 } /* TYPE_SCTP_COOKIE_ECHO */
320 
321 #define TYPE_SCTP_COOKIE_ACK { \
322  /* SCTP_STATE_CLOSED */ \
323  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
324  /* SCTP_STATE_COOKIE_WAIT */ \
325  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
326  /* SCTP_STATE_COOKIE_ECHOED */ \
327  TYPE_SCTP_FUNC(sctp_sf_do_5_1E_ca), \
328  /* SCTP_STATE_ESTABLISHED */ \
329  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
330  /* SCTP_STATE_SHUTDOWN_PENDING */ \
331  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
332  /* SCTP_STATE_SHUTDOWN_SENT */ \
333  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
334  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
335  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
336  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
337  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
338 } /* TYPE_SCTP_COOKIE_ACK */
339 
340 #define TYPE_SCTP_ECN_ECNE { \
341  /* SCTP_STATE_CLOSED */ \
342  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
343  /* SCTP_STATE_COOKIE_WAIT */ \
344  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
345  /* SCTP_STATE_COOKIE_ECHOED */ \
346  TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
347  /* SCTP_STATE_ESTABLISHED */ \
348  TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
349  /* SCTP_STATE_SHUTDOWN_PENDING */ \
350  TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
351  /* SCTP_STATE_SHUTDOWN_SENT */ \
352  TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
353  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
354  TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
355  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
356  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
357 } /* TYPE_SCTP_ECN_ECNE */
358 
359 #define TYPE_SCTP_ECN_CWR { \
360  /* SCTP_STATE_CLOSED */ \
361  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
362  /* SCTP_STATE_COOKIE_WAIT */ \
363  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
364  /* SCTP_STATE_COOKIE_ECHOED */ \
365  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
366  /* SCTP_STATE_ESTABLISHED */ \
367  TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \
368  /* SCTP_STATE_SHUTDOWN_PENDING */ \
369  TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \
370  /* SCTP_STATE_SHUTDOWN_SENT */ \
371  TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \
372  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
373  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
374  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
375  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
376 } /* TYPE_SCTP_ECN_CWR */
377 
378 #define TYPE_SCTP_SHUTDOWN_COMPLETE { \
379  /* SCTP_STATE_CLOSED */ \
380  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
381  /* SCTP_STATE_COOKIE_WAIT */ \
382  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
383  /* SCTP_STATE_COOKIE_ECHOED */ \
384  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
385  /* SCTP_STATE_ESTABLISHED */ \
386  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
387  /* SCTP_STATE_SHUTDOWN_PENDING */ \
388  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
389  /* SCTP_STATE_SHUTDOWN_SENT */ \
390  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
391  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
392  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
393  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
394  TYPE_SCTP_FUNC(sctp_sf_do_4_C), \
395 } /* TYPE_SCTP_SHUTDOWN_COMPLETE */
396 
397 /* The primary index for this table is the chunk type.
398  * The secondary index for this table is the state.
399  *
400  * For base protocol (RFC 2960).
401  */
402 static const sctp_sm_table_entry_t chunk_event_table[SCTP_NUM_BASE_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
403  TYPE_SCTP_DATA,
404  TYPE_SCTP_INIT,
405  TYPE_SCTP_INIT_ACK,
406  TYPE_SCTP_SACK,
407  TYPE_SCTP_HEARTBEAT,
408  TYPE_SCTP_HEARTBEAT_ACK,
409  TYPE_SCTP_ABORT,
410  TYPE_SCTP_SHUTDOWN,
411  TYPE_SCTP_SHUTDOWN_ACK,
412  TYPE_SCTP_ERROR,
413  TYPE_SCTP_COOKIE_ECHO,
414  TYPE_SCTP_COOKIE_ACK,
415  TYPE_SCTP_ECN_ECNE,
416  TYPE_SCTP_ECN_CWR,
417  TYPE_SCTP_SHUTDOWN_COMPLETE,
418 }; /* state_fn_t chunk_event_table[][] */
419 
420 #define TYPE_SCTP_ASCONF { \
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), \
429  /* SCTP_STATE_SHUTDOWN_PENDING */ \
430  TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
431  /* SCTP_STATE_SHUTDOWN_SENT */ \
432  TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
433  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
434  TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
435  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
436  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
437 } /* TYPE_SCTP_ASCONF */
438 
439 #define TYPE_SCTP_ASCONF_ACK { \
440  /* SCTP_STATE_CLOSED */ \
441  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
442  /* SCTP_STATE_COOKIE_WAIT */ \
443  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
444  /* SCTP_STATE_COOKIE_ECHOED */ \
445  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
446  /* SCTP_STATE_ESTABLISHED */ \
447  TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
448  /* SCTP_STATE_SHUTDOWN_PENDING */ \
449  TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
450  /* SCTP_STATE_SHUTDOWN_SENT */ \
451  TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
452  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
453  TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
454  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
455  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
456 } /* TYPE_SCTP_ASCONF_ACK */
457 
458 /* The primary index for this table is the chunk type.
459  * The secondary index for this table is the state.
460  */
461 static const sctp_sm_table_entry_t addip_chunk_event_table[SCTP_NUM_ADDIP_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
462  TYPE_SCTP_ASCONF,
463  TYPE_SCTP_ASCONF_ACK,
464 }; /*state_fn_t addip_chunk_event_table[][] */
465 
466 #define TYPE_SCTP_FWD_TSN { \
467  /* SCTP_STATE_CLOSED */ \
468  TYPE_SCTP_FUNC(sctp_sf_ootb), \
469  /* SCTP_STATE_COOKIE_WAIT */ \
470  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
471  /* SCTP_STATE_COOKIE_ECHOED */ \
472  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
473  /* SCTP_STATE_ESTABLISHED */ \
474  TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn), \
475  /* SCTP_STATE_SHUTDOWN_PENDING */ \
476  TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn), \
477  /* SCTP_STATE_SHUTDOWN_SENT */ \
478  TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn_fast), \
479  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
480  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
481  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
482  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
483 } /* TYPE_SCTP_FWD_TSN */
484 
485 /* The primary index for this table is the chunk type.
486  * The secondary index for this table is the state.
487  */
488 static const sctp_sm_table_entry_t prsctp_chunk_event_table[SCTP_NUM_PRSCTP_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
489  TYPE_SCTP_FWD_TSN,
490 }; /*state_fn_t prsctp_chunk_event_table[][] */
491 
492 #define TYPE_SCTP_AUTH { \
493  /* SCTP_STATE_CLOSED */ \
494  TYPE_SCTP_FUNC(sctp_sf_ootb), \
495  /* SCTP_STATE_COOKIE_WAIT */ \
496  TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
497  /* SCTP_STATE_COOKIE_ECHOED */ \
498  TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
499  /* SCTP_STATE_ESTABLISHED */ \
500  TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
501  /* SCTP_STATE_SHUTDOWN_PENDING */ \
502  TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
503  /* SCTP_STATE_SHUTDOWN_SENT */ \
504  TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
505  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
506  TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
507  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
508  TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
509 } /* TYPE_SCTP_AUTH */
510 
511 /* The primary index for this table is the chunk type.
512  * The secondary index for this table is the state.
513  */
514 static const sctp_sm_table_entry_t auth_chunk_event_table[SCTP_NUM_AUTH_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
515  TYPE_SCTP_AUTH,
516 }; /*state_fn_t auth_chunk_event_table[][] */
517 
518 static const sctp_sm_table_entry_t
519 chunk_event_table_unknown[SCTP_STATE_NUM_STATES] = {
520  /* SCTP_STATE_CLOSED */
521  TYPE_SCTP_FUNC(sctp_sf_ootb),
522  /* SCTP_STATE_COOKIE_WAIT */
523  TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
524  /* SCTP_STATE_COOKIE_ECHOED */
525  TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
526  /* SCTP_STATE_ESTABLISHED */
527  TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
528  /* SCTP_STATE_SHUTDOWN_PENDING */
529  TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
530  /* SCTP_STATE_SHUTDOWN_SENT */
531  TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
532  /* SCTP_STATE_SHUTDOWN_RECEIVED */
533  TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
534  /* SCTP_STATE_SHUTDOWN_ACK_SENT */
535  TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
536 }; /* chunk unknown */
537 
538 
539 #define TYPE_SCTP_PRIMITIVE_ASSOCIATE { \
540  /* SCTP_STATE_CLOSED */ \
541  TYPE_SCTP_FUNC(sctp_sf_do_prm_asoc), \
542  /* SCTP_STATE_COOKIE_WAIT */ \
543  TYPE_SCTP_FUNC(sctp_sf_not_impl), \
544  /* SCTP_STATE_COOKIE_ECHOED */ \
545  TYPE_SCTP_FUNC(sctp_sf_not_impl), \
546  /* SCTP_STATE_ESTABLISHED */ \
547  TYPE_SCTP_FUNC(sctp_sf_not_impl), \
548  /* SCTP_STATE_SHUTDOWN_PENDING */ \
549  TYPE_SCTP_FUNC(sctp_sf_not_impl), \
550  /* SCTP_STATE_SHUTDOWN_SENT */ \
551  TYPE_SCTP_FUNC(sctp_sf_not_impl), \
552  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
553  TYPE_SCTP_FUNC(sctp_sf_not_impl), \
554  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
555  TYPE_SCTP_FUNC(sctp_sf_not_impl), \
556 } /* TYPE_SCTP_PRIMITIVE_ASSOCIATE */
557 
558 #define TYPE_SCTP_PRIMITIVE_SHUTDOWN { \
559  /* SCTP_STATE_CLOSED */ \
560  TYPE_SCTP_FUNC(sctp_sf_error_closed), \
561  /* SCTP_STATE_COOKIE_WAIT */ \
562  TYPE_SCTP_FUNC(sctp_sf_cookie_wait_prm_shutdown), \
563  /* SCTP_STATE_COOKIE_ECHOED */ \
564  TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_prm_shutdown),\
565  /* SCTP_STATE_ESTABLISHED */ \
566  TYPE_SCTP_FUNC(sctp_sf_do_9_2_prm_shutdown), \
567  /* SCTP_STATE_SHUTDOWN_PENDING */ \
568  TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
569  /* SCTP_STATE_SHUTDOWN_SENT */ \
570  TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
571  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
572  TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
573  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
574  TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
575 } /* TYPE_SCTP_PRIMITIVE_SHUTDOWN */
576 
577 #define TYPE_SCTP_PRIMITIVE_ABORT { \
578  /* SCTP_STATE_CLOSED */ \
579  TYPE_SCTP_FUNC(sctp_sf_error_closed), \
580  /* SCTP_STATE_COOKIE_WAIT */ \
581  TYPE_SCTP_FUNC(sctp_sf_cookie_wait_prm_abort), \
582  /* SCTP_STATE_COOKIE_ECHOED */ \
583  TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_prm_abort), \
584  /* SCTP_STATE_ESTABLISHED */ \
585  TYPE_SCTP_FUNC(sctp_sf_do_9_1_prm_abort), \
586  /* SCTP_STATE_SHUTDOWN_PENDING */ \
587  TYPE_SCTP_FUNC(sctp_sf_shutdown_pending_prm_abort), \
588  /* SCTP_STATE_SHUTDOWN_SENT */ \
589  TYPE_SCTP_FUNC(sctp_sf_shutdown_sent_prm_abort), \
590  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
591  TYPE_SCTP_FUNC(sctp_sf_do_9_1_prm_abort), \
592  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
593  TYPE_SCTP_FUNC(sctp_sf_shutdown_ack_sent_prm_abort), \
594 } /* TYPE_SCTP_PRIMITIVE_ABORT */
595 
596 #define TYPE_SCTP_PRIMITIVE_SEND { \
597  /* SCTP_STATE_CLOSED */ \
598  TYPE_SCTP_FUNC(sctp_sf_error_closed), \
599  /* SCTP_STATE_COOKIE_WAIT */ \
600  TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
601  /* SCTP_STATE_COOKIE_ECHOED */ \
602  TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
603  /* SCTP_STATE_ESTABLISHED */ \
604  TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
605  /* SCTP_STATE_SHUTDOWN_PENDING */ \
606  TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
607  /* SCTP_STATE_SHUTDOWN_SENT */ \
608  TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
609  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
610  TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
611  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
612  TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
613 } /* TYPE_SCTP_PRIMITIVE_SEND */
614 
615 #define TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT { \
616  /* SCTP_STATE_CLOSED */ \
617  TYPE_SCTP_FUNC(sctp_sf_error_closed), \
618  /* SCTP_STATE_COOKIE_WAIT */ \
619  TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
620  /* SCTP_STATE_COOKIE_ECHOED */ \
621  TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
622  /* SCTP_STATE_ESTABLISHED */ \
623  TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
624  /* SCTP_STATE_SHUTDOWN_PENDING */ \
625  TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
626  /* SCTP_STATE_SHUTDOWN_SENT */ \
627  TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
628  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
629  TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
630  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
631  TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
632 } /* TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT */
633 
634 #define TYPE_SCTP_PRIMITIVE_ASCONF { \
635  /* SCTP_STATE_CLOSED */ \
636  TYPE_SCTP_FUNC(sctp_sf_error_closed), \
637  /* SCTP_STATE_COOKIE_WAIT */ \
638  TYPE_SCTP_FUNC(sctp_sf_error_closed), \
639  /* SCTP_STATE_COOKIE_ECHOED */ \
640  TYPE_SCTP_FUNC(sctp_sf_error_closed), \
641  /* SCTP_STATE_ESTABLISHED */ \
642  TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
643  /* SCTP_STATE_SHUTDOWN_PENDING */ \
644  TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
645  /* SCTP_STATE_SHUTDOWN_SENT */ \
646  TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
647  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
648  TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
649  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
650  TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
651 } /* TYPE_SCTP_PRIMITIVE_ASCONF */
652 
653 /* The primary index for this table is the primitive type.
654  * The secondary index for this table is the state.
655  */
656 static const sctp_sm_table_entry_t primitive_event_table[SCTP_NUM_PRIMITIVE_TYPES][SCTP_STATE_NUM_STATES] = {
657  TYPE_SCTP_PRIMITIVE_ASSOCIATE,
658  TYPE_SCTP_PRIMITIVE_SHUTDOWN,
659  TYPE_SCTP_PRIMITIVE_ABORT,
660  TYPE_SCTP_PRIMITIVE_SEND,
661  TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT,
662  TYPE_SCTP_PRIMITIVE_ASCONF,
663 };
664 
665 #define TYPE_SCTP_OTHER_NO_PENDING_TSN { \
666  /* SCTP_STATE_CLOSED */ \
667  TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
668  /* SCTP_STATE_COOKIE_WAIT */ \
669  TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
670  /* SCTP_STATE_COOKIE_ECHOED */ \
671  TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
672  /* SCTP_STATE_ESTABLISHED */ \
673  TYPE_SCTP_FUNC(sctp_sf_do_no_pending_tsn), \
674  /* SCTP_STATE_SHUTDOWN_PENDING */ \
675  TYPE_SCTP_FUNC(sctp_sf_do_9_2_start_shutdown), \
676  /* SCTP_STATE_SHUTDOWN_SENT */ \
677  TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
678  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
679  TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown_ack), \
680  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
681  TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
682 }
683 
684 #define TYPE_SCTP_OTHER_ICMP_PROTO_UNREACH { \
685  /* SCTP_STATE_CLOSED */ \
686  TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
687  /* SCTP_STATE_COOKIE_WAIT */ \
688  TYPE_SCTP_FUNC(sctp_sf_cookie_wait_icmp_abort), \
689  /* SCTP_STATE_COOKIE_ECHOED */ \
690  TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
691  /* SCTP_STATE_ESTABLISHED */ \
692  TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
693  /* SCTP_STATE_SHUTDOWN_PENDING */ \
694  TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
695  /* SCTP_STATE_SHUTDOWN_SENT */ \
696  TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
697  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
698  TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
699  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
700  TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
701 }
702 
703 static const sctp_sm_table_entry_t other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STATES] = {
704  TYPE_SCTP_OTHER_NO_PENDING_TSN,
705  TYPE_SCTP_OTHER_ICMP_PROTO_UNREACH,
706 };
707 
708 #define TYPE_SCTP_EVENT_TIMEOUT_NONE { \
709  /* SCTP_STATE_CLOSED */ \
710  TYPE_SCTP_FUNC(sctp_sf_bug), \
711  /* SCTP_STATE_COOKIE_WAIT */ \
712  TYPE_SCTP_FUNC(sctp_sf_bug), \
713  /* SCTP_STATE_COOKIE_ECHOED */ \
714  TYPE_SCTP_FUNC(sctp_sf_bug), \
715  /* SCTP_STATE_ESTABLISHED */ \
716  TYPE_SCTP_FUNC(sctp_sf_bug), \
717  /* SCTP_STATE_SHUTDOWN_PENDING */ \
718  TYPE_SCTP_FUNC(sctp_sf_bug), \
719  /* SCTP_STATE_SHUTDOWN_SENT */ \
720  TYPE_SCTP_FUNC(sctp_sf_bug), \
721  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
722  TYPE_SCTP_FUNC(sctp_sf_bug), \
723  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
724  TYPE_SCTP_FUNC(sctp_sf_bug), \
725 }
726 
727 #define TYPE_SCTP_EVENT_TIMEOUT_T1_COOKIE { \
728  /* SCTP_STATE_CLOSED */ \
729  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
730  /* SCTP_STATE_COOKIE_WAIT */ \
731  TYPE_SCTP_FUNC(sctp_sf_bug), \
732  /* SCTP_STATE_COOKIE_ECHOED */ \
733  TYPE_SCTP_FUNC(sctp_sf_t1_cookie_timer_expire), \
734  /* SCTP_STATE_ESTABLISHED */ \
735  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
736  /* SCTP_STATE_SHUTDOWN_PENDING */ \
737  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
738  /* SCTP_STATE_SHUTDOWN_SENT */ \
739  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
740  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
741  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
742  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
743  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
744 }
745 
746 #define TYPE_SCTP_EVENT_TIMEOUT_T1_INIT { \
747  /* SCTP_STATE_CLOSED */ \
748  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
749  /* SCTP_STATE_COOKIE_WAIT */ \
750  TYPE_SCTP_FUNC(sctp_sf_t1_init_timer_expire), \
751  /* SCTP_STATE_COOKIE_ECHOED */ \
752  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
753  /* SCTP_STATE_ESTABLISHED */ \
754  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
755  /* SCTP_STATE_SHUTDOWN_PENDING */ \
756  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
757  /* SCTP_STATE_SHUTDOWN_SENT */ \
758  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
759  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
760  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
761  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
762  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
763 }
764 
765 #define TYPE_SCTP_EVENT_TIMEOUT_T2_SHUTDOWN { \
766  /* SCTP_STATE_CLOSED */ \
767  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
768  /* SCTP_STATE_COOKIE_WAIT */ \
769  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
770  /* SCTP_STATE_COOKIE_ECHOED */ \
771  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
772  /* SCTP_STATE_ESTABLISHED */ \
773  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
774  /* SCTP_STATE_SHUTDOWN_PENDING */ \
775  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
776  /* SCTP_STATE_SHUTDOWN_SENT */ \
777  TYPE_SCTP_FUNC(sctp_sf_t2_timer_expire), \
778  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
779  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
780  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
781  TYPE_SCTP_FUNC(sctp_sf_t2_timer_expire), \
782 }
783 
784 #define TYPE_SCTP_EVENT_TIMEOUT_T3_RTX { \
785  /* SCTP_STATE_CLOSED */ \
786  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
787  /* SCTP_STATE_COOKIE_WAIT */ \
788  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
789  /* SCTP_STATE_COOKIE_ECHOED */ \
790  TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
791  /* SCTP_STATE_ESTABLISHED */ \
792  TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
793  /* SCTP_STATE_SHUTDOWN_PENDING */ \
794  TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
795  /* SCTP_STATE_SHUTDOWN_SENT */ \
796  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
797  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
798  TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
799  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
800  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
801 }
802 
803 #define TYPE_SCTP_EVENT_TIMEOUT_T4_RTO { \
804  /* SCTP_STATE_CLOSED */ \
805  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
806  /* SCTP_STATE_COOKIE_WAIT */ \
807  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
808  /* SCTP_STATE_COOKIE_ECHOED */ \
809  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
810  /* SCTP_STATE_ESTABLISHED */ \
811  TYPE_SCTP_FUNC(sctp_sf_t4_timer_expire), \
812  /* SCTP_STATE_SHUTDOWN_PENDING */ \
813  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
814  /* SCTP_STATE_SHUTDOWN_SENT */ \
815  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
816  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
817  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
818  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
819  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
820 }
821 
822 #define TYPE_SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD { \
823  /* SCTP_STATE_CLOSED */ \
824  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
825  /* SCTP_STATE_COOKIE_WAIT */ \
826  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
827  /* SCTP_STATE_COOKIE_ECHOED */ \
828  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
829  /* SCTP_STATE_ESTABLISHED */ \
830  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
831  /* SCTP_STATE_SHUTDOWN_PENDING */ \
832  TYPE_SCTP_FUNC(sctp_sf_t5_timer_expire), \
833  /* SCTP_STATE_SHUTDOWN_SENT */ \
834  TYPE_SCTP_FUNC(sctp_sf_t5_timer_expire), \
835  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
836  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
837  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
838  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
839 }
840 
841 #define TYPE_SCTP_EVENT_TIMEOUT_HEARTBEAT { \
842  /* SCTP_STATE_CLOSED */ \
843  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
844  /* SCTP_STATE_COOKIE_WAIT */ \
845  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
846  /* SCTP_STATE_COOKIE_ECHOED */ \
847  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
848  /* SCTP_STATE_ESTABLISHED */ \
849  TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
850  /* SCTP_STATE_SHUTDOWN_PENDING */ \
851  TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
852  /* SCTP_STATE_SHUTDOWN_SENT */ \
853  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
854  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
855  TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
856  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
857  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
858 }
859 
860 #define TYPE_SCTP_EVENT_TIMEOUT_SACK { \
861  /* SCTP_STATE_CLOSED */ \
862  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
863  /* SCTP_STATE_COOKIE_WAIT */ \
864  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
865  /* SCTP_STATE_COOKIE_ECHOED */ \
866  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
867  /* SCTP_STATE_ESTABLISHED */ \
868  TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
869  /* SCTP_STATE_SHUTDOWN_PENDING */ \
870  TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
871  /* SCTP_STATE_SHUTDOWN_SENT */ \
872  TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
873  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
874  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
875  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
876  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
877 }
878 
879 #define TYPE_SCTP_EVENT_TIMEOUT_AUTOCLOSE { \
880  /* SCTP_STATE_CLOSED */ \
881  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
882  /* SCTP_STATE_COOKIE_WAIT */ \
883  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
884  /* SCTP_STATE_COOKIE_ECHOED */ \
885  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
886  /* SCTP_STATE_ESTABLISHED */ \
887  TYPE_SCTP_FUNC(sctp_sf_autoclose_timer_expire), \
888  /* SCTP_STATE_SHUTDOWN_PENDING */ \
889  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
890  /* SCTP_STATE_SHUTDOWN_SENT */ \
891  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
892  /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
893  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
894  /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
895  TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
896 }
897 
898 static const sctp_sm_table_entry_t timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][SCTP_STATE_NUM_STATES] = {
899  TYPE_SCTP_EVENT_TIMEOUT_NONE,
900  TYPE_SCTP_EVENT_TIMEOUT_T1_COOKIE,
901  TYPE_SCTP_EVENT_TIMEOUT_T1_INIT,
902  TYPE_SCTP_EVENT_TIMEOUT_T2_SHUTDOWN,
903  TYPE_SCTP_EVENT_TIMEOUT_T3_RTX,
904  TYPE_SCTP_EVENT_TIMEOUT_T4_RTO,
905  TYPE_SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD,
906  TYPE_SCTP_EVENT_TIMEOUT_HEARTBEAT,
907  TYPE_SCTP_EVENT_TIMEOUT_SACK,
908  TYPE_SCTP_EVENT_TIMEOUT_AUTOCLOSE,
909 };
910 
911 static const sctp_sm_table_entry_t *sctp_chunk_event_lookup(struct net *net,
912  sctp_cid_t cid,
913  sctp_state_t state)
914 {
915  if (state > SCTP_STATE_MAX)
916  return &bug;
917 
918  if (cid <= SCTP_CID_BASE_MAX)
919  return &chunk_event_table[cid][state];
920 
921  if (net->sctp.prsctp_enable) {
922  if (cid == SCTP_CID_FWD_TSN)
923  return &prsctp_chunk_event_table[0][state];
924  }
925 
926  if (net->sctp.addip_enable) {
927  if (cid == SCTP_CID_ASCONF)
928  return &addip_chunk_event_table[0][state];
929 
930  if (cid == SCTP_CID_ASCONF_ACK)
931  return &addip_chunk_event_table[1][state];
932  }
933 
934  if (net->sctp.auth_enable) {
935  if (cid == SCTP_CID_AUTH)
936  return &auth_chunk_event_table[0][state];
937  }
938 
939  return &chunk_event_table_unknown[state];
940 }
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