Merge tag 'drm-misc-fixes-2019-05-29' of git://anongit.freedesktop.org/drm/drm-misc...
[sfrench/cifs-2.6.git] / net / sctp / sm_statetable.c
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
33 static const struct sctp_sm_table_entry
34 primitive_event_table[SCTP_NUM_PRIMITIVE_TYPES][SCTP_STATE_NUM_STATES];
35 static const struct sctp_sm_table_entry
36 other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STATES];
37 static const struct sctp_sm_table_entry
38 timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][SCTP_STATE_NUM_STATES];
39
40 static 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
46 static 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
65 const 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  */
382 static const struct sctp_sm_table_entry
383 chunk_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  */
442 static const struct sctp_sm_table_entry
443 addip_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  */
470 static const struct sctp_sm_table_entry
471 prsctp_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  */
497 static const struct sctp_sm_table_entry
498 reconf_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  */
524 static const struct sctp_sm_table_entry
525 auth_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
529 static const struct sctp_sm_table_entry
530 chunk_event_table_unknown[SCTP_STATE_NUM_STATES] = {
531         /* SCTP_STATE_CLOSED */
532         TYPE_SCTP_FUNC(sctp_sf_ootb),
533         /* SCTP_STATE_COOKIE_WAIT */
534         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
535         /* SCTP_STATE_COOKIE_ECHOED */
536         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
537         /* SCTP_STATE_ESTABLISHED */
538         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
539         /* SCTP_STATE_SHUTDOWN_PENDING */
540         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
541         /* SCTP_STATE_SHUTDOWN_SENT */
542         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
543         /* SCTP_STATE_SHUTDOWN_RECEIVED */
544         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
545         /* SCTP_STATE_SHUTDOWN_ACK_SENT */
546         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
547 };      /* chunk unknown */
548
549
550 #define TYPE_SCTP_PRIMITIVE_ASSOCIATE  { \
551         /* SCTP_STATE_CLOSED */ \
552         TYPE_SCTP_FUNC(sctp_sf_do_prm_asoc), \
553         /* SCTP_STATE_COOKIE_WAIT */ \
554         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
555         /* SCTP_STATE_COOKIE_ECHOED */ \
556         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
557         /* SCTP_STATE_ESTABLISHED */ \
558         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
559         /* SCTP_STATE_SHUTDOWN_PENDING */ \
560         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
561         /* SCTP_STATE_SHUTDOWN_SENT */ \
562         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
563         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
564         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
565         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
566         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
567 } /* TYPE_SCTP_PRIMITIVE_ASSOCIATE */
568
569 #define TYPE_SCTP_PRIMITIVE_SHUTDOWN  { \
570         /* SCTP_STATE_CLOSED */ \
571         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
572         /* SCTP_STATE_COOKIE_WAIT */ \
573         TYPE_SCTP_FUNC(sctp_sf_cookie_wait_prm_shutdown), \
574         /* SCTP_STATE_COOKIE_ECHOED */ \
575         TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_prm_shutdown),\
576         /* SCTP_STATE_ESTABLISHED */ \
577         TYPE_SCTP_FUNC(sctp_sf_do_9_2_prm_shutdown), \
578         /* SCTP_STATE_SHUTDOWN_PENDING */ \
579         TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
580         /* SCTP_STATE_SHUTDOWN_SENT */ \
581         TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
582         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
583         TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
584         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
585         TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
586 } /* TYPE_SCTP_PRIMITIVE_SHUTDOWN */
587
588 #define TYPE_SCTP_PRIMITIVE_ABORT  { \
589         /* SCTP_STATE_CLOSED */ \
590         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
591         /* SCTP_STATE_COOKIE_WAIT */ \
592         TYPE_SCTP_FUNC(sctp_sf_cookie_wait_prm_abort), \
593         /* SCTP_STATE_COOKIE_ECHOED */ \
594         TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_prm_abort), \
595         /* SCTP_STATE_ESTABLISHED */ \
596         TYPE_SCTP_FUNC(sctp_sf_do_9_1_prm_abort), \
597         /* SCTP_STATE_SHUTDOWN_PENDING */ \
598         TYPE_SCTP_FUNC(sctp_sf_shutdown_pending_prm_abort), \
599         /* SCTP_STATE_SHUTDOWN_SENT */ \
600         TYPE_SCTP_FUNC(sctp_sf_shutdown_sent_prm_abort), \
601         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
602         TYPE_SCTP_FUNC(sctp_sf_do_9_1_prm_abort), \
603         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
604         TYPE_SCTP_FUNC(sctp_sf_shutdown_ack_sent_prm_abort), \
605 } /* TYPE_SCTP_PRIMITIVE_ABORT */
606
607 #define TYPE_SCTP_PRIMITIVE_SEND  { \
608         /* SCTP_STATE_CLOSED */ \
609         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
610         /* SCTP_STATE_COOKIE_WAIT */ \
611         TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
612         /* SCTP_STATE_COOKIE_ECHOED */ \
613         TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
614         /* SCTP_STATE_ESTABLISHED */ \
615         TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
616         /* SCTP_STATE_SHUTDOWN_PENDING */ \
617         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
618         /* SCTP_STATE_SHUTDOWN_SENT */ \
619         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
620         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
621         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
622         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
623         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
624 } /* TYPE_SCTP_PRIMITIVE_SEND */
625
626 #define TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT  { \
627         /* SCTP_STATE_CLOSED */ \
628         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
629         /* SCTP_STATE_COOKIE_WAIT */ \
630         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
631         /* SCTP_STATE_COOKIE_ECHOED */ \
632         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
633         /* SCTP_STATE_ESTABLISHED */ \
634         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
635         /* SCTP_STATE_SHUTDOWN_PENDING */ \
636         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
637         /* SCTP_STATE_SHUTDOWN_SENT */ \
638         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
639         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
640         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
641         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
642         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
643 } /* TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT */
644
645 #define TYPE_SCTP_PRIMITIVE_ASCONF { \
646         /* SCTP_STATE_CLOSED */ \
647         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
648         /* SCTP_STATE_COOKIE_WAIT */ \
649         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
650         /* SCTP_STATE_COOKIE_ECHOED */ \
651         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
652         /* SCTP_STATE_ESTABLISHED */ \
653         TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
654         /* SCTP_STATE_SHUTDOWN_PENDING */ \
655         TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
656         /* SCTP_STATE_SHUTDOWN_SENT */ \
657         TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
658         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
659         TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
660         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
661         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
662 } /* TYPE_SCTP_PRIMITIVE_ASCONF */
663
664 #define TYPE_SCTP_PRIMITIVE_RECONF { \
665         /* SCTP_STATE_CLOSED */ \
666         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
667         /* SCTP_STATE_COOKIE_WAIT */ \
668         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
669         /* SCTP_STATE_COOKIE_ECHOED */ \
670         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
671         /* SCTP_STATE_ESTABLISHED */ \
672         TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \
673         /* SCTP_STATE_SHUTDOWN_PENDING */ \
674         TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \
675         /* SCTP_STATE_SHUTDOWN_SENT */ \
676         TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \
677         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
678         TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \
679         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
680         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
681 } /* TYPE_SCTP_PRIMITIVE_RECONF */
682
683 /* The primary index for this table is the primitive type.
684  * The secondary index for this table is the state.
685  */
686 static const struct sctp_sm_table_entry
687 primitive_event_table[SCTP_NUM_PRIMITIVE_TYPES][SCTP_STATE_NUM_STATES] = {
688         TYPE_SCTP_PRIMITIVE_ASSOCIATE,
689         TYPE_SCTP_PRIMITIVE_SHUTDOWN,
690         TYPE_SCTP_PRIMITIVE_ABORT,
691         TYPE_SCTP_PRIMITIVE_SEND,
692         TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT,
693         TYPE_SCTP_PRIMITIVE_ASCONF,
694         TYPE_SCTP_PRIMITIVE_RECONF,
695 };
696
697 #define TYPE_SCTP_OTHER_NO_PENDING_TSN  { \
698         /* SCTP_STATE_CLOSED */ \
699         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
700         /* SCTP_STATE_COOKIE_WAIT */ \
701         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
702         /* SCTP_STATE_COOKIE_ECHOED */ \
703         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
704         /* SCTP_STATE_ESTABLISHED */ \
705         TYPE_SCTP_FUNC(sctp_sf_do_no_pending_tsn), \
706         /* SCTP_STATE_SHUTDOWN_PENDING */ \
707         TYPE_SCTP_FUNC(sctp_sf_do_9_2_start_shutdown), \
708         /* SCTP_STATE_SHUTDOWN_SENT */ \
709         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
710         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
711         TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown_ack), \
712         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
713         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
714 }
715
716 #define TYPE_SCTP_OTHER_ICMP_PROTO_UNREACH  { \
717         /* SCTP_STATE_CLOSED */ \
718         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
719         /* SCTP_STATE_COOKIE_WAIT */ \
720         TYPE_SCTP_FUNC(sctp_sf_cookie_wait_icmp_abort), \
721         /* SCTP_STATE_COOKIE_ECHOED */ \
722         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
723         /* SCTP_STATE_ESTABLISHED */ \
724         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
725         /* SCTP_STATE_SHUTDOWN_PENDING */ \
726         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
727         /* SCTP_STATE_SHUTDOWN_SENT */ \
728         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
729         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
730         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
731         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
732         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
733 }
734
735 static const struct sctp_sm_table_entry
736 other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STATES] = {
737         TYPE_SCTP_OTHER_NO_PENDING_TSN,
738         TYPE_SCTP_OTHER_ICMP_PROTO_UNREACH,
739 };
740
741 #define TYPE_SCTP_EVENT_TIMEOUT_NONE { \
742         /* SCTP_STATE_CLOSED */ \
743         TYPE_SCTP_FUNC(sctp_sf_bug), \
744         /* SCTP_STATE_COOKIE_WAIT */ \
745         TYPE_SCTP_FUNC(sctp_sf_bug), \
746         /* SCTP_STATE_COOKIE_ECHOED */ \
747         TYPE_SCTP_FUNC(sctp_sf_bug), \
748         /* SCTP_STATE_ESTABLISHED */ \
749         TYPE_SCTP_FUNC(sctp_sf_bug), \
750         /* SCTP_STATE_SHUTDOWN_PENDING */ \
751         TYPE_SCTP_FUNC(sctp_sf_bug), \
752         /* SCTP_STATE_SHUTDOWN_SENT */ \
753         TYPE_SCTP_FUNC(sctp_sf_bug), \
754         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
755         TYPE_SCTP_FUNC(sctp_sf_bug), \
756         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
757         TYPE_SCTP_FUNC(sctp_sf_bug), \
758 }
759
760 #define TYPE_SCTP_EVENT_TIMEOUT_T1_COOKIE { \
761         /* SCTP_STATE_CLOSED */ \
762         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
763         /* SCTP_STATE_COOKIE_WAIT */ \
764         TYPE_SCTP_FUNC(sctp_sf_bug), \
765         /* SCTP_STATE_COOKIE_ECHOED */ \
766         TYPE_SCTP_FUNC(sctp_sf_t1_cookie_timer_expire), \
767         /* SCTP_STATE_ESTABLISHED */ \
768         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
769         /* SCTP_STATE_SHUTDOWN_PENDING */ \
770         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
771         /* SCTP_STATE_SHUTDOWN_SENT */ \
772         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
773         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
774         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
775         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
776         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
777 }
778
779 #define TYPE_SCTP_EVENT_TIMEOUT_T1_INIT { \
780         /* SCTP_STATE_CLOSED */ \
781         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
782         /* SCTP_STATE_COOKIE_WAIT */ \
783         TYPE_SCTP_FUNC(sctp_sf_t1_init_timer_expire), \
784         /* SCTP_STATE_COOKIE_ECHOED */ \
785         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
786         /* SCTP_STATE_ESTABLISHED */ \
787         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
788         /* SCTP_STATE_SHUTDOWN_PENDING */ \
789         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
790         /* SCTP_STATE_SHUTDOWN_SENT */ \
791         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
792         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
793         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
794         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
795         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
796 }
797
798 #define TYPE_SCTP_EVENT_TIMEOUT_T2_SHUTDOWN { \
799         /* SCTP_STATE_CLOSED */ \
800         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
801         /* SCTP_STATE_COOKIE_WAIT */ \
802         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
803         /* SCTP_STATE_COOKIE_ECHOED */ \
804         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
805         /* SCTP_STATE_ESTABLISHED */ \
806         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
807         /* SCTP_STATE_SHUTDOWN_PENDING */ \
808         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
809         /* SCTP_STATE_SHUTDOWN_SENT */ \
810         TYPE_SCTP_FUNC(sctp_sf_t2_timer_expire), \
811         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
812         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
813         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
814         TYPE_SCTP_FUNC(sctp_sf_t2_timer_expire), \
815 }
816
817 #define TYPE_SCTP_EVENT_TIMEOUT_T3_RTX { \
818         /* SCTP_STATE_CLOSED */ \
819         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
820         /* SCTP_STATE_COOKIE_WAIT */ \
821         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
822         /* SCTP_STATE_COOKIE_ECHOED */ \
823         TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
824         /* SCTP_STATE_ESTABLISHED */ \
825         TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
826         /* SCTP_STATE_SHUTDOWN_PENDING */ \
827         TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
828         /* SCTP_STATE_SHUTDOWN_SENT */ \
829         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
830         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
831         TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
832         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
833         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
834 }
835
836 #define TYPE_SCTP_EVENT_TIMEOUT_T4_RTO { \
837         /* SCTP_STATE_CLOSED */ \
838         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
839         /* SCTP_STATE_COOKIE_WAIT */ \
840         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
841         /* SCTP_STATE_COOKIE_ECHOED */ \
842         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
843         /* SCTP_STATE_ESTABLISHED */ \
844         TYPE_SCTP_FUNC(sctp_sf_t4_timer_expire), \
845         /* SCTP_STATE_SHUTDOWN_PENDING */ \
846         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
847         /* SCTP_STATE_SHUTDOWN_SENT */ \
848         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
849         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
850         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
851         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
852         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
853 }
854
855 #define TYPE_SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD { \
856         /* SCTP_STATE_CLOSED */ \
857         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
858         /* SCTP_STATE_COOKIE_WAIT */ \
859         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
860         /* SCTP_STATE_COOKIE_ECHOED */ \
861         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
862         /* SCTP_STATE_ESTABLISHED */ \
863         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
864         /* SCTP_STATE_SHUTDOWN_PENDING */ \
865         TYPE_SCTP_FUNC(sctp_sf_t5_timer_expire), \
866         /* SCTP_STATE_SHUTDOWN_SENT */ \
867         TYPE_SCTP_FUNC(sctp_sf_t5_timer_expire), \
868         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
869         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
870         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
871         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
872 }
873
874 #define TYPE_SCTP_EVENT_TIMEOUT_HEARTBEAT { \
875         /* SCTP_STATE_CLOSED */ \
876         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
877         /* SCTP_STATE_COOKIE_WAIT */ \
878         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
879         /* SCTP_STATE_COOKIE_ECHOED */ \
880         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
881         /* SCTP_STATE_ESTABLISHED */ \
882         TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
883         /* SCTP_STATE_SHUTDOWN_PENDING */ \
884         TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
885         /* SCTP_STATE_SHUTDOWN_SENT */ \
886         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
887         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
888         TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
889         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
890         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
891 }
892
893 #define TYPE_SCTP_EVENT_TIMEOUT_SACK { \
894         /* SCTP_STATE_CLOSED */ \
895         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
896         /* SCTP_STATE_COOKIE_WAIT */ \
897         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
898         /* SCTP_STATE_COOKIE_ECHOED */ \
899         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
900         /* SCTP_STATE_ESTABLISHED */ \
901         TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
902         /* SCTP_STATE_SHUTDOWN_PENDING */ \
903         TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
904         /* SCTP_STATE_SHUTDOWN_SENT */ \
905         TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
906         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
907         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
908         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
909         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
910 }
911
912 #define TYPE_SCTP_EVENT_TIMEOUT_AUTOCLOSE { \
913         /* SCTP_STATE_CLOSED */ \
914         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
915         /* SCTP_STATE_COOKIE_WAIT */ \
916         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
917         /* SCTP_STATE_COOKIE_ECHOED */ \
918         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
919         /* SCTP_STATE_ESTABLISHED */ \
920         TYPE_SCTP_FUNC(sctp_sf_autoclose_timer_expire), \
921         /* SCTP_STATE_SHUTDOWN_PENDING */ \
922         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
923         /* SCTP_STATE_SHUTDOWN_SENT */ \
924         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
925         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
926         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
927         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
928         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
929 }
930
931 #define TYPE_SCTP_EVENT_TIMEOUT_RECONF { \
932         /* SCTP_STATE_CLOSED */ \
933         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
934         /* SCTP_STATE_COOKIE_WAIT */ \
935         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
936         /* SCTP_STATE_COOKIE_ECHOED */ \
937         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
938         /* SCTP_STATE_ESTABLISHED */ \
939         TYPE_SCTP_FUNC(sctp_sf_send_reconf), \
940         /* SCTP_STATE_SHUTDOWN_PENDING */ \
941         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
942         /* SCTP_STATE_SHUTDOWN_SENT */ \
943         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
944         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
945         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
946         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
947         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
948 }
949
950 static const struct sctp_sm_table_entry
951 timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][SCTP_STATE_NUM_STATES] = {
952         TYPE_SCTP_EVENT_TIMEOUT_NONE,
953         TYPE_SCTP_EVENT_TIMEOUT_T1_COOKIE,
954         TYPE_SCTP_EVENT_TIMEOUT_T1_INIT,
955         TYPE_SCTP_EVENT_TIMEOUT_T2_SHUTDOWN,
956         TYPE_SCTP_EVENT_TIMEOUT_T3_RTX,
957         TYPE_SCTP_EVENT_TIMEOUT_T4_RTO,
958         TYPE_SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD,
959         TYPE_SCTP_EVENT_TIMEOUT_HEARTBEAT,
960         TYPE_SCTP_EVENT_TIMEOUT_RECONF,
961         TYPE_SCTP_EVENT_TIMEOUT_SACK,
962         TYPE_SCTP_EVENT_TIMEOUT_AUTOCLOSE,
963 };
964
965 static const struct sctp_sm_table_entry *sctp_chunk_event_lookup(
966                                                 struct net *net,
967                                                 enum sctp_cid cid,
968                                                 enum sctp_state state)
969 {
970         if (state > SCTP_STATE_MAX)
971                 return &bug;
972
973         if (cid == SCTP_CID_I_DATA)
974                 cid = SCTP_CID_DATA;
975
976         if (cid <= SCTP_CID_BASE_MAX)
977                 return &chunk_event_table[cid][state];
978
979         if (net->sctp.prsctp_enable) {
980                 if (cid == SCTP_CID_FWD_TSN || cid == SCTP_CID_I_FWD_TSN)
981                         return &prsctp_chunk_event_table[0][state];
982         }
983
984         if (net->sctp.addip_enable) {
985                 if (cid == SCTP_CID_ASCONF)
986                         return &addip_chunk_event_table[0][state];
987
988                 if (cid == SCTP_CID_ASCONF_ACK)
989                         return &addip_chunk_event_table[1][state];
990         }
991
992         if (net->sctp.reconf_enable)
993                 if (cid == SCTP_CID_RECONF)
994                         return &reconf_chunk_event_table[0][state];
995
996         if (net->sctp.auth_enable) {
997                 if (cid == SCTP_CID_AUTH)
998                         return &auth_chunk_event_table[0][state];
999         }
1000
1001         return &chunk_event_table_unknown[state];
1002 }