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TOMOYO Linux Cross Reference
Linux/net/sctp/sm_statetable.c

Version: ~ [ linux-5.1-rc1 ] ~ [ linux-5.0.3 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.30 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.107 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.164 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.176 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.136 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.63 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.39.4 ] ~ [ linux-2.6.38.8 ] ~ [ linux-2.6.37.6 ] ~ [ linux-2.6.36.4 ] ~ [ linux-2.6.35.14 ] ~ [ linux-2.6.34.15 ] ~ [ linux-2.6.33.20 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

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

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