~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

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

Version: ~ [ linux-5.8-rc4 ] ~ [ linux-5.7.7 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.50 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.131 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.187 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.229 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.229 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.85 ] ~ [ 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-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, see
 26  * <http://www.gnu.org/licenses/>.
 27  *
 28  * Please send any bug reports or fixes you make to the
 29  * email address(es):
 30  *    lksctp developers <linux-sctp@vger.kernel.org>
 31  *
 32  * Written or modified by:
 33  *    La Monte H.P. Yarroll <piggy@acm.org>
 34  *    Karl Knutson          <karl@athena.chicago.il.us>
 35  *    Jon Grimm             <jgrimm@us.ibm.com>
 36  *    Hui Huang             <hui.huang@nokia.com>
 37  *    Daisy Chang           <daisyc@us.ibm.com>
 38  *    Ardelle Fan           <ardelle.fan@intel.com>
 39  *    Sridhar Samudrala     <sri@us.ibm.com>
 40  */
 41 
 42 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 43 
 44 #include <linux/skbuff.h>
 45 #include <net/sctp/sctp.h>
 46 #include <net/sctp/sm.h>
 47 
 48 static const sctp_sm_table_entry_t
 49 primitive_event_table[SCTP_NUM_PRIMITIVE_TYPES][SCTP_STATE_NUM_STATES];
 50 static const sctp_sm_table_entry_t
 51 other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STATES];
 52 static const sctp_sm_table_entry_t
 53 timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][SCTP_STATE_NUM_STATES];
 54 
 55 static const sctp_sm_table_entry_t *sctp_chunk_event_lookup(struct net *net,
 56                                                             sctp_cid_t cid,
 57                                                             sctp_state_t state);
 58 
 59 
 60 static const sctp_sm_table_entry_t bug = {
 61         .fn = sctp_sf_bug,
 62         .name = "sctp_sf_bug"
 63 };
 64 
 65 #define DO_LOOKUP(_max, _type, _table)                                  \
 66 ({                                                                      \
 67         const sctp_sm_table_entry_t *rtn;                               \
 68                                                                         \
 69         if ((event_subtype._type > (_max))) {                           \
 70                 pr_warn("table %p possible attack: event %d exceeds max %d\n", \
 71                         _table, event_subtype._type, _max);             \
 72                 rtn = &bug;                                             \
 73         } else                                                          \
 74                 rtn = &_table[event_subtype._type][(int)state];         \
 75                                                                         \
 76         rtn;                                                            \
 77 })
 78 
 79 const sctp_sm_table_entry_t *sctp_sm_lookup_event(struct net *net,
 80                                                   sctp_event_t event_type,
 81                                                   sctp_state_t state,
 82                                                   sctp_subtype_t event_subtype)
 83 {
 84         switch (event_type) {
 85         case SCTP_EVENT_T_CHUNK:
 86                 return sctp_chunk_event_lookup(net, event_subtype.chunk, state);
 87         case SCTP_EVENT_T_TIMEOUT:
 88                 return DO_LOOKUP(SCTP_EVENT_TIMEOUT_MAX, timeout,
 89                                  timeout_event_table);
 90         case SCTP_EVENT_T_OTHER:
 91                 return DO_LOOKUP(SCTP_EVENT_OTHER_MAX, other,
 92                                  other_event_table);
 93         case SCTP_EVENT_T_PRIMITIVE:
 94                 return DO_LOOKUP(SCTP_EVENT_PRIMITIVE_MAX, primitive,
 95                                  primitive_event_table);
 96         default:
 97                 /* Yikes!  We got an illegal event type.  */
 98                 return &bug;
 99         }
100 }
101 
102 #define TYPE_SCTP_FUNC(func) {.fn = func, .name = #func}
103 
104 #define TYPE_SCTP_DATA { \
105         /* SCTP_STATE_CLOSED */ \
106         TYPE_SCTP_FUNC(sctp_sf_ootb), \
107         /* SCTP_STATE_COOKIE_WAIT */ \
108         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
109         /* SCTP_STATE_COOKIE_ECHOED */ \
110         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
111         /* SCTP_STATE_ESTABLISHED */ \
112         TYPE_SCTP_FUNC(sctp_sf_eat_data_6_2), \
113         /* SCTP_STATE_SHUTDOWN_PENDING */ \
114         TYPE_SCTP_FUNC(sctp_sf_eat_data_6_2), \
115         /* SCTP_STATE_SHUTDOWN_SENT */ \
116         TYPE_SCTP_FUNC(sctp_sf_eat_data_fast_4_4), \
117         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
118         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
119         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
120         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
121 } /* TYPE_SCTP_DATA */
122 
123 #define TYPE_SCTP_INIT { \
124         /* SCTP_STATE_CLOSED */ \
125         TYPE_SCTP_FUNC(sctp_sf_do_5_1B_init), \
126         /* SCTP_STATE_COOKIE_WAIT */ \
127         TYPE_SCTP_FUNC(sctp_sf_do_5_2_1_siminit), \
128         /* SCTP_STATE_COOKIE_ECHOED */ \
129         TYPE_SCTP_FUNC(sctp_sf_do_5_2_1_siminit), \
130         /* SCTP_STATE_ESTABLISHED */ \
131         TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
132         /* SCTP_STATE_SHUTDOWN_PENDING */ \
133         TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
134         /* SCTP_STATE_SHUTDOWN_SENT */ \
135         TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
136         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
137         TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
138         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
139         TYPE_SCTP_FUNC(sctp_sf_do_9_2_reshutack), \
140 } /* TYPE_SCTP_INIT */
141 
142 #define TYPE_SCTP_INIT_ACK { \
143         /* SCTP_STATE_CLOSED */ \
144         TYPE_SCTP_FUNC(sctp_sf_do_5_2_3_initack), \
145         /* SCTP_STATE_COOKIE_WAIT */ \
146         TYPE_SCTP_FUNC(sctp_sf_do_5_1C_ack), \
147         /* SCTP_STATE_COOKIE_ECHOED */ \
148         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
149         /* SCTP_STATE_ESTABLISHED */ \
150         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
151         /* SCTP_STATE_SHUTDOWN_PENDING */ \
152         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
153         /* SCTP_STATE_SHUTDOWN_SENT */ \
154         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
155         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
156         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
157         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
158         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
159 } /* TYPE_SCTP_INIT_ACK */
160 
161 #define TYPE_SCTP_SACK { \
162         /* SCTP_STATE_CLOSED */ \
163         TYPE_SCTP_FUNC(sctp_sf_ootb), \
164         /* SCTP_STATE_COOKIE_WAIT */ \
165         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
166         /* SCTP_STATE_COOKIE_ECHOED */ \
167         TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
168         /* SCTP_STATE_ESTABLISHED */ \
169         TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
170         /* SCTP_STATE_SHUTDOWN_PENDING */ \
171         TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
172         /* SCTP_STATE_SHUTDOWN_SENT */ \
173         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
174         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
175         TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
176         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
177         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
178 } /* TYPE_SCTP_SACK */
179 
180 #define TYPE_SCTP_HEARTBEAT { \
181         /* SCTP_STATE_CLOSED */ \
182         TYPE_SCTP_FUNC(sctp_sf_ootb), \
183         /* SCTP_STATE_COOKIE_WAIT */ \
184         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
185         /* SCTP_STATE_COOKIE_ECHOED */ \
186         TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
187         /* SCTP_STATE_ESTABLISHED */ \
188         TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
189         /* SCTP_STATE_SHUTDOWN_PENDING */ \
190         TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
191         /* SCTP_STATE_SHUTDOWN_SENT */ \
192         TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
193         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
194         TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
195         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
196         /* This should not happen, but we are nice.  */ \
197         TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
198 } /* TYPE_SCTP_HEARTBEAT */
199 
200 #define TYPE_SCTP_HEARTBEAT_ACK { \
201         /* SCTP_STATE_CLOSED */ \
202         TYPE_SCTP_FUNC(sctp_sf_ootb), \
203         /* SCTP_STATE_COOKIE_WAIT */ \
204         TYPE_SCTP_FUNC(sctp_sf_violation), \
205         /* SCTP_STATE_COOKIE_ECHOED */ \
206         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
207         /* SCTP_STATE_ESTABLISHED */ \
208         TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
209         /* SCTP_STATE_SHUTDOWN_PENDING */ \
210         TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
211         /* SCTP_STATE_SHUTDOWN_SENT */ \
212         TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
213         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
214         TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
215         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
216         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
217 } /* TYPE_SCTP_HEARTBEAT_ACK */
218 
219 #define TYPE_SCTP_ABORT { \
220         /* SCTP_STATE_CLOSED */ \
221         TYPE_SCTP_FUNC(sctp_sf_pdiscard), \
222         /* SCTP_STATE_COOKIE_WAIT */ \
223         TYPE_SCTP_FUNC(sctp_sf_cookie_wait_abort), \
224         /* SCTP_STATE_COOKIE_ECHOED */ \
225         TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_abort), \
226         /* SCTP_STATE_ESTABLISHED */ \
227         TYPE_SCTP_FUNC(sctp_sf_do_9_1_abort), \
228         /* SCTP_STATE_SHUTDOWN_PENDING */ \
229         TYPE_SCTP_FUNC(sctp_sf_shutdown_pending_abort), \
230         /* SCTP_STATE_SHUTDOWN_SENT */ \
231         TYPE_SCTP_FUNC(sctp_sf_shutdown_sent_abort), \
232         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
233         TYPE_SCTP_FUNC(sctp_sf_do_9_1_abort), \
234         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
235         TYPE_SCTP_FUNC(sctp_sf_shutdown_ack_sent_abort), \
236 } /* TYPE_SCTP_ABORT */
237 
238 #define TYPE_SCTP_SHUTDOWN { \
239         /* SCTP_STATE_CLOSED */ \
240         TYPE_SCTP_FUNC(sctp_sf_ootb), \
241         /* SCTP_STATE_COOKIE_WAIT */ \
242         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
243         /* SCTP_STATE_COOKIE_ECHOED */ \
244         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
245         /* SCTP_STATE_ESTABLISHED */ \
246         TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown), \
247         /* SCTP_STATE_SHUTDOWN_PENDING */ \
248         TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown), \
249         /* SCTP_STATE_SHUTDOWN_SENT */ \
250         TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown_ack), \
251         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
252         TYPE_SCTP_FUNC(sctp_sf_do_9_2_shut_ctsn), \
253         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
254         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
255 } /* TYPE_SCTP_SHUTDOWN */
256 
257 #define TYPE_SCTP_SHUTDOWN_ACK { \
258         /* SCTP_STATE_CLOSED */ \
259         TYPE_SCTP_FUNC(sctp_sf_ootb), \
260         /* SCTP_STATE_COOKIE_WAIT */ \
261         TYPE_SCTP_FUNC(sctp_sf_do_8_5_1_E_sa), \
262         /* SCTP_STATE_COOKIE_ECHOED */ \
263         TYPE_SCTP_FUNC(sctp_sf_do_8_5_1_E_sa), \
264         /* SCTP_STATE_ESTABLISHED */ \
265         TYPE_SCTP_FUNC(sctp_sf_violation), \
266         /* SCTP_STATE_SHUTDOWN_PENDING */ \
267         TYPE_SCTP_FUNC(sctp_sf_violation), \
268         /* SCTP_STATE_SHUTDOWN_SENT */ \
269         TYPE_SCTP_FUNC(sctp_sf_do_9_2_final), \
270         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
271         TYPE_SCTP_FUNC(sctp_sf_violation), \
272         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
273         TYPE_SCTP_FUNC(sctp_sf_do_9_2_final), \
274 } /* TYPE_SCTP_SHUTDOWN_ACK */
275 
276 #define TYPE_SCTP_ERROR { \
277         /* SCTP_STATE_CLOSED */ \
278         TYPE_SCTP_FUNC(sctp_sf_ootb), \
279         /* SCTP_STATE_COOKIE_WAIT */ \
280         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
281         /* SCTP_STATE_COOKIE_ECHOED */ \
282         TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_err), \
283         /* SCTP_STATE_ESTABLISHED */ \
284         TYPE_SCTP_FUNC(sctp_sf_operr_notify), \
285         /* SCTP_STATE_SHUTDOWN_PENDING */ \
286         TYPE_SCTP_FUNC(sctp_sf_operr_notify), \
287         /* SCTP_STATE_SHUTDOWN_SENT */ \
288         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
289         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
290         TYPE_SCTP_FUNC(sctp_sf_operr_notify), \
291         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
292         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
293 } /* TYPE_SCTP_ERROR */
294 
295 #define TYPE_SCTP_COOKIE_ECHO { \
296         /* SCTP_STATE_CLOSED */ \
297         TYPE_SCTP_FUNC(sctp_sf_do_5_1D_ce), \
298         /* SCTP_STATE_COOKIE_WAIT */ \
299         TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
300         /* SCTP_STATE_COOKIE_ECHOED */ \
301         TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
302         /* SCTP_STATE_ESTABLISHED */ \
303         TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
304         /* SCTP_STATE_SHUTDOWN_PENDING */ \
305         TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
306         /* SCTP_STATE_SHUTDOWN_SENT */ \
307         TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
308         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
309         TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
310         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
311         TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
312 } /* TYPE_SCTP_COOKIE_ECHO */
313 
314 #define TYPE_SCTP_COOKIE_ACK { \
315         /* SCTP_STATE_CLOSED */ \
316         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
317         /* SCTP_STATE_COOKIE_WAIT */ \
318         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
319         /* SCTP_STATE_COOKIE_ECHOED */ \
320         TYPE_SCTP_FUNC(sctp_sf_do_5_1E_ca), \
321         /* SCTP_STATE_ESTABLISHED */ \
322         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
323         /* SCTP_STATE_SHUTDOWN_PENDING */ \
324         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
325         /* SCTP_STATE_SHUTDOWN_SENT */ \
326         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
327         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
328         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
329         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
330         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
331 } /* TYPE_SCTP_COOKIE_ACK */
332 
333 #define TYPE_SCTP_ECN_ECNE { \
334         /* SCTP_STATE_CLOSED */ \
335         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
336         /* SCTP_STATE_COOKIE_WAIT */ \
337         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
338         /* SCTP_STATE_COOKIE_ECHOED */ \
339         TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
340         /* SCTP_STATE_ESTABLISHED */ \
341         TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
342         /* SCTP_STATE_SHUTDOWN_PENDING */ \
343         TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
344         /* SCTP_STATE_SHUTDOWN_SENT */ \
345         TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
346         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
347         TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
348         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
349         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
350 } /* TYPE_SCTP_ECN_ECNE */
351 
352 #define TYPE_SCTP_ECN_CWR { \
353         /* SCTP_STATE_CLOSED */ \
354         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
355         /* SCTP_STATE_COOKIE_WAIT */ \
356         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
357         /* SCTP_STATE_COOKIE_ECHOED */ \
358         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
359         /* SCTP_STATE_ESTABLISHED */ \
360         TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \
361         /* SCTP_STATE_SHUTDOWN_PENDING */ \
362         TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \
363         /* SCTP_STATE_SHUTDOWN_SENT */ \
364         TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \
365         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
366         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
367         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
368         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
369 } /* TYPE_SCTP_ECN_CWR */
370 
371 #define TYPE_SCTP_SHUTDOWN_COMPLETE { \
372         /* SCTP_STATE_CLOSED */ \
373         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
374         /* SCTP_STATE_COOKIE_WAIT */ \
375         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
376         /* SCTP_STATE_COOKIE_ECHOED */ \
377         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
378         /* SCTP_STATE_ESTABLISHED */ \
379         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
380         /* SCTP_STATE_SHUTDOWN_PENDING */ \
381         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
382         /* SCTP_STATE_SHUTDOWN_SENT */ \
383         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
384         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
385         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
386         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
387         TYPE_SCTP_FUNC(sctp_sf_do_4_C), \
388 } /* TYPE_SCTP_SHUTDOWN_COMPLETE */
389 
390 /* The primary index for this table is the chunk type.
391  * The secondary index for this table is the state.
392  *
393  * For base protocol (RFC 2960).
394  */
395 static const sctp_sm_table_entry_t chunk_event_table[SCTP_NUM_BASE_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
396         TYPE_SCTP_DATA,
397         TYPE_SCTP_INIT,
398         TYPE_SCTP_INIT_ACK,
399         TYPE_SCTP_SACK,
400         TYPE_SCTP_HEARTBEAT,
401         TYPE_SCTP_HEARTBEAT_ACK,
402         TYPE_SCTP_ABORT,
403         TYPE_SCTP_SHUTDOWN,
404         TYPE_SCTP_SHUTDOWN_ACK,
405         TYPE_SCTP_ERROR,
406         TYPE_SCTP_COOKIE_ECHO,
407         TYPE_SCTP_COOKIE_ACK,
408         TYPE_SCTP_ECN_ECNE,
409         TYPE_SCTP_ECN_CWR,
410         TYPE_SCTP_SHUTDOWN_COMPLETE,
411 }; /* state_fn_t chunk_event_table[][] */
412 
413 #define TYPE_SCTP_ASCONF { \
414         /* SCTP_STATE_CLOSED */ \
415         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
416         /* SCTP_STATE_COOKIE_WAIT */ \
417         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
418         /* SCTP_STATE_COOKIE_ECHOED */ \
419         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
420         /* SCTP_STATE_ESTABLISHED */ \
421         TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
422         /* SCTP_STATE_SHUTDOWN_PENDING */ \
423         TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
424         /* SCTP_STATE_SHUTDOWN_SENT */ \
425         TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
426         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
427         TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
428         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
429         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
430 } /* TYPE_SCTP_ASCONF */
431 
432 #define TYPE_SCTP_ASCONF_ACK { \
433         /* SCTP_STATE_CLOSED */ \
434         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
435         /* SCTP_STATE_COOKIE_WAIT */ \
436         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
437         /* SCTP_STATE_COOKIE_ECHOED */ \
438         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
439         /* SCTP_STATE_ESTABLISHED */ \
440         TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
441         /* SCTP_STATE_SHUTDOWN_PENDING */ \
442         TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
443         /* SCTP_STATE_SHUTDOWN_SENT */ \
444         TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
445         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
446         TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
447         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
448         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
449 } /* TYPE_SCTP_ASCONF_ACK */
450 
451 /* The primary index for this table is the chunk type.
452  * The secondary index for this table is the state.
453  */
454 static const sctp_sm_table_entry_t addip_chunk_event_table[SCTP_NUM_ADDIP_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
455         TYPE_SCTP_ASCONF,
456         TYPE_SCTP_ASCONF_ACK,
457 }; /*state_fn_t addip_chunk_event_table[][] */
458 
459 #define TYPE_SCTP_FWD_TSN { \
460         /* SCTP_STATE_CLOSED */ \
461         TYPE_SCTP_FUNC(sctp_sf_ootb), \
462         /* SCTP_STATE_COOKIE_WAIT */ \
463         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
464         /* SCTP_STATE_COOKIE_ECHOED */ \
465         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
466         /* SCTP_STATE_ESTABLISHED */ \
467         TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn), \
468         /* SCTP_STATE_SHUTDOWN_PENDING */ \
469         TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn), \
470         /* SCTP_STATE_SHUTDOWN_SENT */ \
471         TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn_fast), \
472         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
473         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
474         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
475         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
476 } /* TYPE_SCTP_FWD_TSN */
477 
478 /* The primary index for this table is the chunk type.
479  * The secondary index for this table is the state.
480  */
481 static const sctp_sm_table_entry_t prsctp_chunk_event_table[SCTP_NUM_PRSCTP_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
482         TYPE_SCTP_FWD_TSN,
483 }; /*state_fn_t prsctp_chunk_event_table[][] */
484 
485 #define TYPE_SCTP_AUTH { \
486         /* SCTP_STATE_CLOSED */ \
487         TYPE_SCTP_FUNC(sctp_sf_ootb), \
488         /* SCTP_STATE_COOKIE_WAIT */ \
489         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
490         /* SCTP_STATE_COOKIE_ECHOED */ \
491         TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
492         /* SCTP_STATE_ESTABLISHED */ \
493         TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
494         /* SCTP_STATE_SHUTDOWN_PENDING */ \
495         TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
496         /* SCTP_STATE_SHUTDOWN_SENT */ \
497         TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
498         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
499         TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
500         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
501         TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
502 } /* TYPE_SCTP_AUTH */
503 
504 /* The primary index for this table is the chunk type.
505  * The secondary index for this table is the state.
506  */
507 static const sctp_sm_table_entry_t auth_chunk_event_table[SCTP_NUM_AUTH_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
508         TYPE_SCTP_AUTH,
509 }; /*state_fn_t auth_chunk_event_table[][] */
510 
511 static const sctp_sm_table_entry_t
512 chunk_event_table_unknown[SCTP_STATE_NUM_STATES] = {
513         /* SCTP_STATE_CLOSED */
514         TYPE_SCTP_FUNC(sctp_sf_ootb),
515         /* SCTP_STATE_COOKIE_WAIT */
516         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
517         /* SCTP_STATE_COOKIE_ECHOED */
518         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
519         /* SCTP_STATE_ESTABLISHED */
520         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
521         /* SCTP_STATE_SHUTDOWN_PENDING */
522         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
523         /* SCTP_STATE_SHUTDOWN_SENT */
524         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
525         /* SCTP_STATE_SHUTDOWN_RECEIVED */
526         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
527         /* SCTP_STATE_SHUTDOWN_ACK_SENT */
528         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
529 };      /* chunk unknown */
530 
531 
532 #define TYPE_SCTP_PRIMITIVE_ASSOCIATE  { \
533         /* SCTP_STATE_CLOSED */ \
534         TYPE_SCTP_FUNC(sctp_sf_do_prm_asoc), \
535         /* SCTP_STATE_COOKIE_WAIT */ \
536         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
537         /* SCTP_STATE_COOKIE_ECHOED */ \
538         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
539         /* SCTP_STATE_ESTABLISHED */ \
540         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
541         /* SCTP_STATE_SHUTDOWN_PENDING */ \
542         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
543         /* SCTP_STATE_SHUTDOWN_SENT */ \
544         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
545         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
546         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
547         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
548         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
549 } /* TYPE_SCTP_PRIMITIVE_ASSOCIATE */
550 
551 #define TYPE_SCTP_PRIMITIVE_SHUTDOWN  { \
552         /* SCTP_STATE_CLOSED */ \
553         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
554         /* SCTP_STATE_COOKIE_WAIT */ \
555         TYPE_SCTP_FUNC(sctp_sf_cookie_wait_prm_shutdown), \
556         /* SCTP_STATE_COOKIE_ECHOED */ \
557         TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_prm_shutdown),\
558         /* SCTP_STATE_ESTABLISHED */ \
559         TYPE_SCTP_FUNC(sctp_sf_do_9_2_prm_shutdown), \
560         /* SCTP_STATE_SHUTDOWN_PENDING */ \
561         TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
562         /* SCTP_STATE_SHUTDOWN_SENT */ \
563         TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
564         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
565         TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
566         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
567         TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
568 } /* TYPE_SCTP_PRIMITIVE_SHUTDOWN */
569 
570 #define TYPE_SCTP_PRIMITIVE_ABORT  { \
571         /* SCTP_STATE_CLOSED */ \
572         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
573         /* SCTP_STATE_COOKIE_WAIT */ \
574         TYPE_SCTP_FUNC(sctp_sf_cookie_wait_prm_abort), \
575         /* SCTP_STATE_COOKIE_ECHOED */ \
576         TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_prm_abort), \
577         /* SCTP_STATE_ESTABLISHED */ \
578         TYPE_SCTP_FUNC(sctp_sf_do_9_1_prm_abort), \
579         /* SCTP_STATE_SHUTDOWN_PENDING */ \
580         TYPE_SCTP_FUNC(sctp_sf_shutdown_pending_prm_abort), \
581         /* SCTP_STATE_SHUTDOWN_SENT */ \
582         TYPE_SCTP_FUNC(sctp_sf_shutdown_sent_prm_abort), \
583         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
584         TYPE_SCTP_FUNC(sctp_sf_do_9_1_prm_abort), \
585         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
586         TYPE_SCTP_FUNC(sctp_sf_shutdown_ack_sent_prm_abort), \
587 } /* TYPE_SCTP_PRIMITIVE_ABORT */
588 
589 #define TYPE_SCTP_PRIMITIVE_SEND  { \
590         /* SCTP_STATE_CLOSED */ \
591         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
592         /* SCTP_STATE_COOKIE_WAIT */ \
593         TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
594         /* SCTP_STATE_COOKIE_ECHOED */ \
595         TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
596         /* SCTP_STATE_ESTABLISHED */ \
597         TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
598         /* SCTP_STATE_SHUTDOWN_PENDING */ \
599         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
600         /* SCTP_STATE_SHUTDOWN_SENT */ \
601         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
602         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
603         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
604         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
605         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
606 } /* TYPE_SCTP_PRIMITIVE_SEND */
607 
608 #define TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT  { \
609         /* SCTP_STATE_CLOSED */ \
610         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
611         /* SCTP_STATE_COOKIE_WAIT */ \
612         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
613         /* SCTP_STATE_COOKIE_ECHOED */ \
614         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
615         /* SCTP_STATE_ESTABLISHED */ \
616         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
617         /* SCTP_STATE_SHUTDOWN_PENDING */ \
618         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
619         /* SCTP_STATE_SHUTDOWN_SENT */ \
620         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
621         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
622         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
623         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
624         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
625 } /* TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT */
626 
627 #define TYPE_SCTP_PRIMITIVE_ASCONF { \
628         /* SCTP_STATE_CLOSED */ \
629         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
630         /* SCTP_STATE_COOKIE_WAIT */ \
631         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
632         /* SCTP_STATE_COOKIE_ECHOED */ \
633         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
634         /* SCTP_STATE_ESTABLISHED */ \
635         TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
636         /* SCTP_STATE_SHUTDOWN_PENDING */ \
637         TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
638         /* SCTP_STATE_SHUTDOWN_SENT */ \
639         TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
640         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
641         TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
642         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
643         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
644 } /* TYPE_SCTP_PRIMITIVE_ASCONF */
645 
646 /* The primary index for this table is the primitive type.
647  * The secondary index for this table is the state.
648  */
649 static const sctp_sm_table_entry_t primitive_event_table[SCTP_NUM_PRIMITIVE_TYPES][SCTP_STATE_NUM_STATES] = {
650         TYPE_SCTP_PRIMITIVE_ASSOCIATE,
651         TYPE_SCTP_PRIMITIVE_SHUTDOWN,
652         TYPE_SCTP_PRIMITIVE_ABORT,
653         TYPE_SCTP_PRIMITIVE_SEND,
654         TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT,
655         TYPE_SCTP_PRIMITIVE_ASCONF,
656 };
657 
658 #define TYPE_SCTP_OTHER_NO_PENDING_TSN  { \
659         /* SCTP_STATE_CLOSED */ \
660         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
661         /* SCTP_STATE_COOKIE_WAIT */ \
662         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
663         /* SCTP_STATE_COOKIE_ECHOED */ \
664         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
665         /* SCTP_STATE_ESTABLISHED */ \
666         TYPE_SCTP_FUNC(sctp_sf_do_no_pending_tsn), \
667         /* SCTP_STATE_SHUTDOWN_PENDING */ \
668         TYPE_SCTP_FUNC(sctp_sf_do_9_2_start_shutdown), \
669         /* SCTP_STATE_SHUTDOWN_SENT */ \
670         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
671         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
672         TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown_ack), \
673         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
674         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
675 }
676 
677 #define TYPE_SCTP_OTHER_ICMP_PROTO_UNREACH  { \
678         /* SCTP_STATE_CLOSED */ \
679         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
680         /* SCTP_STATE_COOKIE_WAIT */ \
681         TYPE_SCTP_FUNC(sctp_sf_cookie_wait_icmp_abort), \
682         /* SCTP_STATE_COOKIE_ECHOED */ \
683         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
684         /* SCTP_STATE_ESTABLISHED */ \
685         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
686         /* SCTP_STATE_SHUTDOWN_PENDING */ \
687         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
688         /* SCTP_STATE_SHUTDOWN_SENT */ \
689         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
690         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
691         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
692         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
693         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
694 }
695 
696 static const sctp_sm_table_entry_t other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STATES] = {
697         TYPE_SCTP_OTHER_NO_PENDING_TSN,
698         TYPE_SCTP_OTHER_ICMP_PROTO_UNREACH,
699 };
700 
701 #define TYPE_SCTP_EVENT_TIMEOUT_NONE { \
702         /* SCTP_STATE_CLOSED */ \
703         TYPE_SCTP_FUNC(sctp_sf_bug), \
704         /* SCTP_STATE_COOKIE_WAIT */ \
705         TYPE_SCTP_FUNC(sctp_sf_bug), \
706         /* SCTP_STATE_COOKIE_ECHOED */ \
707         TYPE_SCTP_FUNC(sctp_sf_bug), \
708         /* SCTP_STATE_ESTABLISHED */ \
709         TYPE_SCTP_FUNC(sctp_sf_bug), \
710         /* SCTP_STATE_SHUTDOWN_PENDING */ \
711         TYPE_SCTP_FUNC(sctp_sf_bug), \
712         /* SCTP_STATE_SHUTDOWN_SENT */ \
713         TYPE_SCTP_FUNC(sctp_sf_bug), \
714         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
715         TYPE_SCTP_FUNC(sctp_sf_bug), \
716         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
717         TYPE_SCTP_FUNC(sctp_sf_bug), \
718 }
719 
720 #define TYPE_SCTP_EVENT_TIMEOUT_T1_COOKIE { \
721         /* SCTP_STATE_CLOSED */ \
722         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
723         /* SCTP_STATE_COOKIE_WAIT */ \
724         TYPE_SCTP_FUNC(sctp_sf_bug), \
725         /* SCTP_STATE_COOKIE_ECHOED */ \
726         TYPE_SCTP_FUNC(sctp_sf_t1_cookie_timer_expire), \
727         /* SCTP_STATE_ESTABLISHED */ \
728         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
729         /* SCTP_STATE_SHUTDOWN_PENDING */ \
730         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
731         /* SCTP_STATE_SHUTDOWN_SENT */ \
732         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
733         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
734         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
735         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
736         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
737 }
738 
739 #define TYPE_SCTP_EVENT_TIMEOUT_T1_INIT { \
740         /* SCTP_STATE_CLOSED */ \
741         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
742         /* SCTP_STATE_COOKIE_WAIT */ \
743         TYPE_SCTP_FUNC(sctp_sf_t1_init_timer_expire), \
744         /* SCTP_STATE_COOKIE_ECHOED */ \
745         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
746         /* SCTP_STATE_ESTABLISHED */ \
747         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
748         /* SCTP_STATE_SHUTDOWN_PENDING */ \
749         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
750         /* SCTP_STATE_SHUTDOWN_SENT */ \
751         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
752         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
753         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
754         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
755         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
756 }
757 
758 #define TYPE_SCTP_EVENT_TIMEOUT_T2_SHUTDOWN { \
759         /* SCTP_STATE_CLOSED */ \
760         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
761         /* SCTP_STATE_COOKIE_WAIT */ \
762         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
763         /* SCTP_STATE_COOKIE_ECHOED */ \
764         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
765         /* SCTP_STATE_ESTABLISHED */ \
766         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
767         /* SCTP_STATE_SHUTDOWN_PENDING */ \
768         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
769         /* SCTP_STATE_SHUTDOWN_SENT */ \
770         TYPE_SCTP_FUNC(sctp_sf_t2_timer_expire), \
771         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
772         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
773         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
774         TYPE_SCTP_FUNC(sctp_sf_t2_timer_expire), \
775 }
776 
777 #define TYPE_SCTP_EVENT_TIMEOUT_T3_RTX { \
778         /* SCTP_STATE_CLOSED */ \
779         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
780         /* SCTP_STATE_COOKIE_WAIT */ \
781         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
782         /* SCTP_STATE_COOKIE_ECHOED */ \
783         TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
784         /* SCTP_STATE_ESTABLISHED */ \
785         TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
786         /* SCTP_STATE_SHUTDOWN_PENDING */ \
787         TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
788         /* SCTP_STATE_SHUTDOWN_SENT */ \
789         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
790         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
791         TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
792         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
793         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
794 }
795 
796 #define TYPE_SCTP_EVENT_TIMEOUT_T4_RTO { \
797         /* SCTP_STATE_CLOSED */ \
798         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
799         /* SCTP_STATE_COOKIE_WAIT */ \
800         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
801         /* SCTP_STATE_COOKIE_ECHOED */ \
802         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
803         /* SCTP_STATE_ESTABLISHED */ \
804         TYPE_SCTP_FUNC(sctp_sf_t4_timer_expire), \
805         /* SCTP_STATE_SHUTDOWN_PENDING */ \
806         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
807         /* SCTP_STATE_SHUTDOWN_SENT */ \
808         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
809         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
810         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
811         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
812         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
813 }
814 
815 #define TYPE_SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD { \
816         /* SCTP_STATE_CLOSED */ \
817         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
818         /* SCTP_STATE_COOKIE_WAIT */ \
819         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
820         /* SCTP_STATE_COOKIE_ECHOED */ \
821         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
822         /* SCTP_STATE_ESTABLISHED */ \
823         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
824         /* SCTP_STATE_SHUTDOWN_PENDING */ \
825         TYPE_SCTP_FUNC(sctp_sf_t5_timer_expire), \
826         /* SCTP_STATE_SHUTDOWN_SENT */ \
827         TYPE_SCTP_FUNC(sctp_sf_t5_timer_expire), \
828         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
829         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
830         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
831         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
832 }
833 
834 #define TYPE_SCTP_EVENT_TIMEOUT_HEARTBEAT { \
835         /* SCTP_STATE_CLOSED */ \
836         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
837         /* SCTP_STATE_COOKIE_WAIT */ \
838         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
839         /* SCTP_STATE_COOKIE_ECHOED */ \
840         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
841         /* SCTP_STATE_ESTABLISHED */ \
842         TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
843         /* SCTP_STATE_SHUTDOWN_PENDING */ \
844         TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
845         /* SCTP_STATE_SHUTDOWN_SENT */ \
846         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
847         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
848         TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
849         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
850         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
851 }
852 
853 #define TYPE_SCTP_EVENT_TIMEOUT_SACK { \
854         /* SCTP_STATE_CLOSED */ \
855         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
856         /* SCTP_STATE_COOKIE_WAIT */ \
857         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
858         /* SCTP_STATE_COOKIE_ECHOED */ \
859         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
860         /* SCTP_STATE_ESTABLISHED */ \
861         TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
862         /* SCTP_STATE_SHUTDOWN_PENDING */ \
863         TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
864         /* SCTP_STATE_SHUTDOWN_SENT */ \
865         TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
866         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
867         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
868         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
869         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
870 }
871 
872 #define TYPE_SCTP_EVENT_TIMEOUT_AUTOCLOSE { \
873         /* SCTP_STATE_CLOSED */ \
874         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
875         /* SCTP_STATE_COOKIE_WAIT */ \
876         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
877         /* SCTP_STATE_COOKIE_ECHOED */ \
878         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
879         /* SCTP_STATE_ESTABLISHED */ \
880         TYPE_SCTP_FUNC(sctp_sf_autoclose_timer_expire), \
881         /* SCTP_STATE_SHUTDOWN_PENDING */ \
882         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
883         /* SCTP_STATE_SHUTDOWN_SENT */ \
884         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
885         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
886         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
887         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
888         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
889 }
890 
891 static const sctp_sm_table_entry_t timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][SCTP_STATE_NUM_STATES] = {
892         TYPE_SCTP_EVENT_TIMEOUT_NONE,
893         TYPE_SCTP_EVENT_TIMEOUT_T1_COOKIE,
894         TYPE_SCTP_EVENT_TIMEOUT_T1_INIT,
895         TYPE_SCTP_EVENT_TIMEOUT_T2_SHUTDOWN,
896         TYPE_SCTP_EVENT_TIMEOUT_T3_RTX,
897         TYPE_SCTP_EVENT_TIMEOUT_T4_RTO,
898         TYPE_SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD,
899         TYPE_SCTP_EVENT_TIMEOUT_HEARTBEAT,
900         TYPE_SCTP_EVENT_TIMEOUT_SACK,
901         TYPE_SCTP_EVENT_TIMEOUT_AUTOCLOSE,
902 };
903 
904 static const sctp_sm_table_entry_t *sctp_chunk_event_lookup(struct net *net,
905                                                             sctp_cid_t cid,
906                                                             sctp_state_t state)
907 {
908         if (state > SCTP_STATE_MAX)
909                 return &bug;
910 
911         if (cid <= SCTP_CID_BASE_MAX)
912                 return &chunk_event_table[cid][state];
913 
914         if (net->sctp.prsctp_enable) {
915                 if (cid == SCTP_CID_FWD_TSN)
916                         return &prsctp_chunk_event_table[0][state];
917         }
918 
919         if (net->sctp.addip_enable) {
920                 if (cid == SCTP_CID_ASCONF)
921                         return &addip_chunk_event_table[0][state];
922 
923                 if (cid == SCTP_CID_ASCONF_ACK)
924                         return &addip_chunk_event_table[1][state];
925         }
926 
927         if (net->sctp.auth_enable) {
928                 if (cid == SCTP_CID_AUTH)
929                         return &auth_chunk_event_table[0][state];
930         }
931 
932         return &chunk_event_table_unknown[state];
933 }
934 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp