net/sctp/sm_statetable.c

   1 /* SCTP kernel reference Implementation
   2  * (C) Copyright IBM Corp. 2001, 2004
   3  * Copyright (c) 1999-2000 Cisco, Inc.
   4  * Copyright (c) 1999-2001 Motorola, Inc.
   5  * Copyright (c) 2001 Intel Corp.
   6  * Copyright (c) 2001 Nokia, Inc.
   7  *
   8  * This file is part of the SCTP kernel reference Implementation
   9  *
  10  * These are the state tables for the SCTP state machine.
  11  *
  12  * The SCTP reference implementation is free software;
  13  * you can redistribute it and/or modify it under the terms of
  14  * the GNU General Public License as published by
  15  * the Free Software Foundation; either version 2, or (at your option)
  16  * any later version.
  17  *
  18  * The SCTP reference implementation is distributed in the hope that it
  19  * will be useful, but WITHOUT ANY WARRANTY; without even the implied
  20  *                 ************************
  21  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  22  * See the GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with GNU CC; see the file COPYING.  If not, write to
  26  * the Free Software Foundation, 59 Temple Place - Suite 330,
  27  * Boston, MA 02111-1307, USA.
  28  *
  29  * Please send any bug reports or fixes you make to the
  30  * email address(es):
  31  *    lksctp developers <lksctp-developers@lists.sourceforge.net>
  32  *
  33  * Or submit a bug report through the following website:
  34  *    http://www.sf.net/projects/lksctp
  35  *
  36  * Written or modified by:
  37  *    La Monte H.P. Yarroll <piggy@acm.org>
  38  *    Karl Knutson          <karl@athena.chicago.il.us>
  39  *    Jon Grimm             <jgrimm@us.ibm.com>
  40  *    Hui Huang             <hui.huang@nokia.com>
  41  *    Daisy Chang           <daisyc@us.ibm.com>
  42  *    Ardelle Fan           <ardelle.fan@intel.com>
  43  *    Sridhar Samudrala     <sri@us.ibm.com>
  44  *
  45  * Any bugs reported given to us we will try to fix... any fixes shared will
  46  * be incorporated into the next SCTP release.
  47  */
  48
  49 #include <linux/skbuff.h>
  50 #include <net/sctp/sctp.h>
  51 #include <net/sctp/sm.h>
  52
  53 static const sctp_sm_table_entry_t
  54 primitive_event_table[SCTP_NUM_PRIMITIVE_TYPES][SCTP_STATE_NUM_STATES];
  55 static const sctp_sm_table_entry_t
  56 other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STATES];
  57 static const sctp_sm_table_entry_t
  58 timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][SCTP_STATE_NUM_STATES];
  59
  60 static const sctp_sm_table_entry_t *sctp_chunk_event_lookup(sctp_cid_t cid,
  61                                                             sctp_state_t state);
  62
  63
  64 static const sctp_sm_table_entry_t bug = {
  65         .fn = sctp_sf_bug,
  66         .name = "sctp_sf_bug"
  67 };
  68
  69 #define DO_LOOKUP(_max, _type, _table) \
  70         if ((event_subtype._type > (_max))) { \
  71                 printk(KERN_WARNING \
  72                        "sctp table %p possible attack:" \
  73                        " event %d exceeds max %d\n", \
  74                        _table, event_subtype._type, _max); \
  75                 return &bug; \
  76         } \
  77         return &_table[event_subtype._type][(int)state];
  78
  79 const sctp_sm_table_entry_t *sctp_sm_lookup_event(sctp_event_t event_type,
  80                                                   sctp_state_t state,
  81                                                   sctp_subtype_t event_subtype)
  82 {
  83         switch (event_type) {
  84         case SCTP_EVENT_T_CHUNK:
  85                 return sctp_chunk_event_lookup(event_subtype.chunk, state);
  86                 break;
  87         case SCTP_EVENT_T_TIMEOUT:
  88                 DO_LOOKUP(SCTP_EVENT_TIMEOUT_MAX, timeout,
  89                           timeout_event_table);
  90                 break;
  91
  92         case SCTP_EVENT_T_OTHER:
  93                 DO_LOOKUP(SCTP_EVENT_OTHER_MAX, other, other_event_table);
  94                 break;
  95
  96         case SCTP_EVENT_T_PRIMITIVE:
  97                 DO_LOOKUP(SCTP_EVENT_PRIMITIVE_MAX, primitive,
  98                           primitive_event_table);
  99                 break;
 100
 101         default:
 102                 /* Yikes!  We got an illegal event type.  */
 103                 return &bug;
 104         };
 105 }
 106
 107 #define TYPE_SCTP_FUNC(func) {.fn = func, .name = #func}
 108
 109 #define TYPE_SCTP_DATA { \
 110         /* SCTP_STATE_EMPTY */ \
 111         TYPE_SCTP_FUNC(sctp_sf_ootb), \
 112         /* SCTP_STATE_CLOSED */ \
 113         TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8), \
 114         /* SCTP_STATE_COOKIE_WAIT */ \
 115         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 116         /* SCTP_STATE_COOKIE_ECHOED */ \
 117         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 118         /* SCTP_STATE_ESTABLISHED */ \
 119         TYPE_SCTP_FUNC(sctp_sf_eat_data_6_2), \
 120         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 121         TYPE_SCTP_FUNC(sctp_sf_eat_data_6_2), \
 122         /* SCTP_STATE_SHUTDOWN_SENT */ \
 123         TYPE_SCTP_FUNC(sctp_sf_eat_data_fast_4_4), \
 124         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 125         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 126         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 127         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 128 } /* TYPE_SCTP_DATA */
 129
 130 #define TYPE_SCTP_INIT { \
 131         /* SCTP_STATE_EMPTY */ \
 132         TYPE_SCTP_FUNC(sctp_sf_bug), \
 133         /* SCTP_STATE_CLOSED */ \
 134         TYPE_SCTP_FUNC(sctp_sf_do_5_1B_init), \
 135         /* SCTP_STATE_COOKIE_WAIT */ \
 136         TYPE_SCTP_FUNC(sctp_sf_do_5_2_1_siminit), \
 137         /* SCTP_STATE_COOKIE_ECHOED */ \
 138         TYPE_SCTP_FUNC(sctp_sf_do_5_2_1_siminit), \
 139         /* SCTP_STATE_ESTABLISHED */ \
 140         TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
 141         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 142         TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
 143         /* SCTP_STATE_SHUTDOWN_SENT */ \
 144         TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
 145         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 146         TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
 147         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 148         TYPE_SCTP_FUNC(sctp_sf_do_9_2_reshutack), \
 149 } /* TYPE_SCTP_INIT */
 150
 151 #define TYPE_SCTP_INIT_ACK { \
 152         /* SCTP_STATE_EMPTY */ \
 153         TYPE_SCTP_FUNC(sctp_sf_ootb), \
 154         /* SCTP_STATE_CLOSED */ \
 155         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 156         /* SCTP_STATE_COOKIE_WAIT */ \
 157         TYPE_SCTP_FUNC(sctp_sf_do_5_1C_ack), \
 158         /* SCTP_STATE_COOKIE_ECHOED */ \
 159         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 160         /* SCTP_STATE_ESTABLISHED */ \
 161         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 162         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 163         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 164         /* SCTP_STATE_SHUTDOWN_SENT */ \
 165         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 166         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 167         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 168         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 169         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 170 } /* TYPE_SCTP_INIT_ACK */
 171
 172 #define TYPE_SCTP_SACK { \
 173         /*  SCTP_STATE_EMPTY */ \
 174         TYPE_SCTP_FUNC(sctp_sf_ootb), \
 175         /* SCTP_STATE_CLOSED */ \
 176         TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8), \
 177         /* SCTP_STATE_COOKIE_WAIT */ \
 178         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 179         /* SCTP_STATE_COOKIE_ECHOED */ \
 180         TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
 181         /* SCTP_STATE_ESTABLISHED */ \
 182         TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
 183         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 184         TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
 185         /* SCTP_STATE_SHUTDOWN_SENT */ \
 186         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 187         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 188         TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
 189         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 190         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 191 } /* TYPE_SCTP_SACK */
 192
 193 #define TYPE_SCTP_HEARTBEAT { \
 194         /*  SCTP_STATE_EMPTY */ \
 195         TYPE_SCTP_FUNC(sctp_sf_ootb), \
 196         /* SCTP_STATE_CLOSED */ \
 197         TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8), \
 198         /* SCTP_STATE_COOKIE_WAIT */ \
 199         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 200         /* SCTP_STATE_COOKIE_ECHOED */ \
 201         TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
 202         /* SCTP_STATE_ESTABLISHED */ \
 203         TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
 204         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 205         TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
 206         /* SCTP_STATE_SHUTDOWN_SENT */ \
 207         TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
 208         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 209         TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
 210         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 211         /* This should not happen, but we are nice.  */ \
 212         TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
 213 } /* TYPE_SCTP_HEARTBEAT */
 214
 215 #define TYPE_SCTP_HEARTBEAT_ACK { \
 216         /*  SCTP_STATE_EMPTY */ \
 217         TYPE_SCTP_FUNC(sctp_sf_ootb), \
 218         /* SCTP_STATE_CLOSED */ \
 219         TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8), \
 220         /* SCTP_STATE_COOKIE_WAIT */ \
 221         TYPE_SCTP_FUNC(sctp_sf_violation), \
 222         /* SCTP_STATE_COOKIE_ECHOED */ \
 223         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 224         /* SCTP_STATE_ESTABLISHED */ \
 225         TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
 226         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 227         TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
 228         /* SCTP_STATE_SHUTDOWN_SENT */ \
 229         TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
 230         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 231         TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
 232         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 233         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 234 } /* TYPE_SCTP_HEARTBEAT_ACK */
 235
 236 #define TYPE_SCTP_ABORT { \
 237         /* SCTP_STATE_EMPTY */ \
 238         TYPE_SCTP_FUNC(sctp_sf_ootb), \
 239         /* SCTP_STATE_CLOSED */ \
 240         TYPE_SCTP_FUNC(sctp_sf_pdiscard), \
 241         /* SCTP_STATE_COOKIE_WAIT */ \
 242         TYPE_SCTP_FUNC(sctp_sf_cookie_wait_abort), \
 243         /* SCTP_STATE_COOKIE_ECHOED */ \
 244         TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_abort), \
 245         /* SCTP_STATE_ESTABLISHED */ \
 246         TYPE_SCTP_FUNC(sctp_sf_do_9_1_abort), \
 247         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 248         TYPE_SCTP_FUNC(sctp_sf_shutdown_pending_abort), \
 249         /* SCTP_STATE_SHUTDOWN_SENT */ \
 250         TYPE_SCTP_FUNC(sctp_sf_shutdown_sent_abort), \
 251         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 252         TYPE_SCTP_FUNC(sctp_sf_do_9_1_abort), \
 253         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 254         TYPE_SCTP_FUNC(sctp_sf_shutdown_ack_sent_abort), \
 255 } /* TYPE_SCTP_ABORT */
 256
 257 #define TYPE_SCTP_SHUTDOWN { \
 258         /* SCTP_STATE_EMPTY */ \
 259         TYPE_SCTP_FUNC(sctp_sf_ootb), \
 260         /* SCTP_STATE_CLOSED */ \
 261         TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8), \
 262         /* SCTP_STATE_COOKIE_WAIT */ \
 263         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 264         /* SCTP_STATE_COOKIE_ECHOED */ \
 265         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 266         /* SCTP_STATE_ESTABLISHED */ \
 267         TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown), \
 268         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 269         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 270         /* SCTP_STATE_SHUTDOWN_SENT */ \
 271         TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown_ack), \
 272         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 273         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 274         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 275         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 276 } /* TYPE_SCTP_SHUTDOWN */
 277
 278 #define TYPE_SCTP_SHUTDOWN_ACK { \
 279         /* SCTP_STATE_EMPTY */ \
 280         TYPE_SCTP_FUNC(sctp_sf_ootb), \
 281         /* SCTP_STATE_CLOSED */ \
 282         TYPE_SCTP_FUNC(sctp_sf_ootb), \
 283         /* SCTP_STATE_COOKIE_WAIT */ \
 284         TYPE_SCTP_FUNC(sctp_sf_do_8_5_1_E_sa), \
 285         /* SCTP_STATE_COOKIE_ECHOED */ \
 286         TYPE_SCTP_FUNC(sctp_sf_do_8_5_1_E_sa), \
 287         /* SCTP_STATE_ESTABLISHED */ \
 288         TYPE_SCTP_FUNC(sctp_sf_violation), \
 289         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 290         TYPE_SCTP_FUNC(sctp_sf_violation), \
 291         /* SCTP_STATE_SHUTDOWN_SENT */ \
 292         TYPE_SCTP_FUNC(sctp_sf_do_9_2_final), \
 293         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 294         TYPE_SCTP_FUNC(sctp_sf_violation), \
 295         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 296         TYPE_SCTP_FUNC(sctp_sf_do_9_2_final), \
 297 } /* TYPE_SCTP_SHUTDOWN_ACK */
 298
 299 #define TYPE_SCTP_ERROR { \
 300         /* SCTP_STATE_EMPTY */ \
 301         TYPE_SCTP_FUNC(sctp_sf_ootb), \
 302         /* SCTP_STATE_CLOSED */ \
 303         TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8), \
 304         /* SCTP_STATE_COOKIE_WAIT */ \
 305         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 306         /* SCTP_STATE_COOKIE_ECHOED */ \
 307         TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_err), \
 308         /* SCTP_STATE_ESTABLISHED */ \
 309         TYPE_SCTP_FUNC(sctp_sf_operr_notify), \
 310         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 311         TYPE_SCTP_FUNC(sctp_sf_operr_notify), \
 312         /* SCTP_STATE_SHUTDOWN_SENT */ \
 313         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 314         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 315         TYPE_SCTP_FUNC(sctp_sf_operr_notify), \
 316         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 317         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 318 } /* TYPE_SCTP_ERROR */
 319
 320 #define TYPE_SCTP_COOKIE_ECHO { \
 321         /* SCTP_STATE_EMPTY */ \
 322         TYPE_SCTP_FUNC(sctp_sf_bug), \
 323         /* SCTP_STATE_CLOSED */ \
 324         TYPE_SCTP_FUNC(sctp_sf_do_5_1D_ce), \
 325         /* SCTP_STATE_COOKIE_WAIT */ \
 326         TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
 327         /* SCTP_STATE_COOKIE_ECHOED */ \
 328         TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
 329         /* SCTP_STATE_ESTABLISHED */ \
 330         TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
 331         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 332         TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
 333         /* SCTP_STATE_SHUTDOWN_SENT */ \
 334         TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
 335         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 336         TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
 337         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 338         TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
 339 } /* TYPE_SCTP_COOKIE_ECHO */
 340
 341 #define TYPE_SCTP_COOKIE_ACK { \
 342         /* SCTP_STATE_EMPTY */ \
 343         TYPE_SCTP_FUNC(sctp_sf_ootb), \
 344         /* SCTP_STATE_CLOSED */ \
 345         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 346         /* SCTP_STATE_COOKIE_WAIT */ \
 347         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 348         /* SCTP_STATE_COOKIE_ECHOED */ \
 349         TYPE_SCTP_FUNC(sctp_sf_do_5_1E_ca), \
 350         /* SCTP_STATE_ESTABLISHED */ \
 351         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 352         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 353         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 354         /* SCTP_STATE_SHUTDOWN_SENT */ \
 355         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 356         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 357         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 358         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 359         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 360 } /* TYPE_SCTP_COOKIE_ACK */
 361
 362 #define TYPE_SCTP_ECN_ECNE { \
 363         /* SCTP_STATE_EMPTY */ \
 364         TYPE_SCTP_FUNC(sctp_sf_ootb), \
 365         /* SCTP_STATE_CLOSED */ \
 366         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 367         /* SCTP_STATE_COOKIE_WAIT */ \
 368         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 369         /* SCTP_STATE_COOKIE_ECHOED */ \
 370         TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
 371         /* SCTP_STATE_ESTABLISHED */ \
 372         TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
 373         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 374         TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
 375         /* SCTP_STATE_SHUTDOWN_SENT */ \
 376         TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
 377         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 378         TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
 379         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 380         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 381 } /* TYPE_SCTP_ECN_ECNE */
 382
 383 #define TYPE_SCTP_ECN_CWR { \
 384         /* SCTP_STATE_EMPTY */ \
 385         TYPE_SCTP_FUNC(sctp_sf_ootb), \
 386         /* SCTP_STATE_CLOSED */ \
 387         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 388         /* SCTP_STATE_COOKIE_WAIT */ \
 389         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 390         /* SCTP_STATE_COOKIE_ECHOED */ \
 391         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 392         /* SCTP_STATE_ESTABLISHED */ \
 393         TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \
 394         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 395         TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \
 396         /* SCTP_STATE_SHUTDOWN_SENT */ \
 397         TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \
 398         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 399         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 400         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 401         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 402 } /* TYPE_SCTP_ECN_CWR */
 403
 404 #define TYPE_SCTP_SHUTDOWN_COMPLETE { \
 405         /* SCTP_STATE_EMPTY */ \
 406         TYPE_SCTP_FUNC(sctp_sf_ootb), \
 407         /* SCTP_STATE_CLOSED */ \
 408         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 409         /* SCTP_STATE_COOKIE_WAIT */ \
 410         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 411         /* SCTP_STATE_COOKIE_ECHOED */ \
 412         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 413         /* SCTP_STATE_ESTABLISHED */ \
 414         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 415         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 416         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 417         /* SCTP_STATE_SHUTDOWN_SENT */ \
 418         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 419         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 420         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 421         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 422         TYPE_SCTP_FUNC(sctp_sf_do_4_C), \
 423 } /* TYPE_SCTP_SHUTDOWN_COMPLETE */
 424
 425 /* The primary index for this table is the chunk type.
 426  * The secondary index for this table is the state.
 427  *
 428  * For base protocol (RFC 2960).
 429  */
 430 static const sctp_sm_table_entry_t chunk_event_table[SCTP_NUM_BASE_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
 431         TYPE_SCTP_DATA,
 432         TYPE_SCTP_INIT,
 433         TYPE_SCTP_INIT_ACK,
 434         TYPE_SCTP_SACK,
 435         TYPE_SCTP_HEARTBEAT,
 436         TYPE_SCTP_HEARTBEAT_ACK,
 437         TYPE_SCTP_ABORT,
 438         TYPE_SCTP_SHUTDOWN,
 439         TYPE_SCTP_SHUTDOWN_ACK,
 440         TYPE_SCTP_ERROR,
 441         TYPE_SCTP_COOKIE_ECHO,
 442         TYPE_SCTP_COOKIE_ACK,
 443         TYPE_SCTP_ECN_ECNE,
 444         TYPE_SCTP_ECN_CWR,
 445         TYPE_SCTP_SHUTDOWN_COMPLETE,
 446 }; /* state_fn_t chunk_event_table[][] */
 447
 448 #define TYPE_SCTP_ASCONF { \
 449         /* SCTP_STATE_EMPTY */ \
 450         TYPE_SCTP_FUNC(sctp_sf_ootb), \
 451         /* SCTP_STATE_CLOSED */ \
 452         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 453         /* SCTP_STATE_COOKIE_WAIT */ \
 454         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 455         /* SCTP_STATE_COOKIE_ECHOED */ \
 456         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 457         /* SCTP_STATE_ESTABLISHED */ \
 458         TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
 459         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 460         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 461         /* SCTP_STATE_SHUTDOWN_SENT */ \
 462         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 463         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 464         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 465         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 466         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 467 } /* TYPE_SCTP_ASCONF */
 468
 469 #define TYPE_SCTP_ASCONF_ACK { \
 470         /* SCTP_STATE_EMPTY */ \
 471         TYPE_SCTP_FUNC(sctp_sf_ootb), \
 472         /* SCTP_STATE_CLOSED */ \
 473         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 474         /* SCTP_STATE_COOKIE_WAIT */ \
 475         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 476         /* SCTP_STATE_COOKIE_ECHOED */ \
 477         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 478         /* SCTP_STATE_ESTABLISHED */ \
 479         TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
 480         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 481         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 482         /* SCTP_STATE_SHUTDOWN_SENT */ \
 483         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 484         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 485         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 486         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 487         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 488 } /* TYPE_SCTP_ASCONF_ACK */
 489
 490 /* The primary index for this table is the chunk type.
 491  * The secondary index for this table is the state.
 492  */
 493 static const sctp_sm_table_entry_t addip_chunk_event_table[SCTP_NUM_ADDIP_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
 494         TYPE_SCTP_ASCONF,
 495         TYPE_SCTP_ASCONF_ACK,
 496 }; /*state_fn_t addip_chunk_event_table[][] */
 497
 498 #define TYPE_SCTP_FWD_TSN { \
 499         /* SCTP_STATE_EMPTY */ \
 500         TYPE_SCTP_FUNC(sctp_sf_ootb), \
 501         /* SCTP_STATE_CLOSED */ \
 502         TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8), \
 503         /* SCTP_STATE_COOKIE_WAIT */ \
 504         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 505         /* SCTP_STATE_COOKIE_ECHOED */ \
 506         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 507         /* SCTP_STATE_ESTABLISHED */ \
 508         TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn), \
 509         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 510         TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn), \
 511         /* SCTP_STATE_SHUTDOWN_SENT */ \
 512         TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn_fast), \
 513         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 514         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 515         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 516         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 517 } /* TYPE_SCTP_FWD_TSN */
 518
 519 /* The primary index for this table is the chunk type.
 520  * The secondary index for this table is the state.
 521  */
 522 static const sctp_sm_table_entry_t prsctp_chunk_event_table[SCTP_NUM_PRSCTP_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
 523         TYPE_SCTP_FWD_TSN,
 524 }; /*state_fn_t prsctp_chunk_event_table[][] */
 525
 526 static const sctp_sm_table_entry_t
 527 chunk_event_table_unknown[SCTP_STATE_NUM_STATES] = {
 528         /* SCTP_STATE_EMPTY */
 529         TYPE_SCTP_FUNC(sctp_sf_ootb),
 530         /* SCTP_STATE_CLOSED */
 531         TYPE_SCTP_FUNC(sctp_sf_tabort_8_4_8),
 532         /* SCTP_STATE_COOKIE_WAIT */
 533         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
 534         /* SCTP_STATE_COOKIE_ECHOED */
 535         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
 536         /* SCTP_STATE_ESTABLISHED */
 537         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
 538         /* SCTP_STATE_SHUTDOWN_PENDING */
 539         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
 540         /* SCTP_STATE_SHUTDOWN_SENT */
 541         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
 542         /* SCTP_STATE_SHUTDOWN_RECEIVED */
 543         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
 544         /* SCTP_STATE_SHUTDOWN_ACK_SENT */
 545         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
 546 };      /* chunk unknown */
 547
 548
 549 #define TYPE_SCTP_PRIMITIVE_ASSOCIATE  { \
 550         /* SCTP_STATE_EMPTY */ \
 551         TYPE_SCTP_FUNC(sctp_sf_bug), \
 552         /* SCTP_STATE_CLOSED */ \
 553         TYPE_SCTP_FUNC(sctp_sf_do_prm_asoc), \
 554         /* SCTP_STATE_COOKIE_WAIT */ \
 555         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
 556         /* SCTP_STATE_COOKIE_ECHOED */ \
 557         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
 558         /* SCTP_STATE_ESTABLISHED */ \
 559         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
 560         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 561         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
 562         /* SCTP_STATE_SHUTDOWN_SENT */ \
 563         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
 564         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 565         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
 566         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 567         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
 568 } /* TYPE_SCTP_PRIMITIVE_ASSOCIATE */
 569
 570 #define TYPE_SCTP_PRIMITIVE_SHUTDOWN  { \
 571         /* SCTP_STATE_EMPTY */ \
 572         TYPE_SCTP_FUNC(sctp_sf_bug), \
 573         /* SCTP_STATE_CLOSED */ \
 574         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
 575         /* SCTP_STATE_COOKIE_WAIT */ \
 576         TYPE_SCTP_FUNC(sctp_sf_cookie_wait_prm_shutdown), \
 577         /* SCTP_STATE_COOKIE_ECHOED */ \
 578         TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_prm_shutdown),\
 579         /* SCTP_STATE_ESTABLISHED */ \
 580         TYPE_SCTP_FUNC(sctp_sf_do_9_2_prm_shutdown), \
 581         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 582         TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
 583         /* SCTP_STATE_SHUTDOWN_SENT */ \
 584         TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
 585         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 586         TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
 587         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 588         TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
 589 } /* TYPE_SCTP_PRIMITIVE_SHUTDOWN */
 590
 591 #define TYPE_SCTP_PRIMITIVE_ABORT  { \
 592         /* SCTP_STATE_EMPTY */ \
 593         TYPE_SCTP_FUNC(sctp_sf_bug), \
 594         /* SCTP_STATE_CLOSED */ \
 595         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
 596         /* SCTP_STATE_COOKIE_WAIT */ \
 597         TYPE_SCTP_FUNC(sctp_sf_cookie_wait_prm_abort), \
 598         /* SCTP_STATE_COOKIE_ECHOED */ \
 599         TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_prm_abort), \
 600         /* SCTP_STATE_ESTABLISHED */ \
 601         TYPE_SCTP_FUNC(sctp_sf_do_9_1_prm_abort), \
 602         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 603         TYPE_SCTP_FUNC(sctp_sf_shutdown_pending_prm_abort), \
 604         /* SCTP_STATE_SHUTDOWN_SENT */ \
 605         TYPE_SCTP_FUNC(sctp_sf_shutdown_sent_prm_abort), \
 606         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 607         TYPE_SCTP_FUNC(sctp_sf_do_9_1_prm_abort), \
 608         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 609         TYPE_SCTP_FUNC(sctp_sf_shutdown_ack_sent_prm_abort), \
 610 } /* TYPE_SCTP_PRIMITIVE_ABORT */
 611
 612 #define TYPE_SCTP_PRIMITIVE_SEND  { \
 613         /* SCTP_STATE_EMPTY */ \
 614         TYPE_SCTP_FUNC(sctp_sf_bug), \
 615         /* SCTP_STATE_CLOSED */ \
 616         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
 617         /* SCTP_STATE_COOKIE_WAIT */ \
 618         TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
 619         /* SCTP_STATE_COOKIE_ECHOED */ \
 620         TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
 621         /* SCTP_STATE_ESTABLISHED */ \
 622         TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
 623         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 624         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
 625         /* SCTP_STATE_SHUTDOWN_SENT */ \
 626         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
 627         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 628         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
 629         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 630         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
 631 } /* TYPE_SCTP_PRIMITIVE_SEND */
 632
 633 #define TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT  { \
 634         /* SCTP_STATE_EMPTY */ \
 635         TYPE_SCTP_FUNC(sctp_sf_bug), \
 636         /* SCTP_STATE_CLOSED */ \
 637         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
 638         /* SCTP_STATE_COOKIE_WAIT */ \
 639         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
 640         /* SCTP_STATE_COOKIE_ECHOED */ \
 641         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
 642         /* SCTP_STATE_ESTABLISHED */ \
 643         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
 644         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 645         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
 646         /* SCTP_STATE_SHUTDOWN_SENT */ \
 647         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
 648         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 649         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
 650         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 651         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
 652 } /* TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT */
 653
 654 #define TYPE_SCTP_PRIMITIVE_ASCONF { \
 655         /* SCTP_STATE_EMPTY */ \
 656         TYPE_SCTP_FUNC(sctp_sf_bug), \
 657         /* SCTP_STATE_CLOSED */ \
 658         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
 659         /* SCTP_STATE_COOKIE_WAIT */ \
 660         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
 661         /* SCTP_STATE_COOKIE_ECHOED */ \
 662         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
 663         /* SCTP_STATE_ESTABLISHED */ \
 664         TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
 665         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 666         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
 667         /* SCTP_STATE_SHUTDOWN_SENT */ \
 668         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
 669         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 670         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
 671         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 672         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
 673 } /* TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT */
 674
 675 /* The primary index for this table is the primitive type.
 676  * The secondary index for this table is the state.
 677  */
 678 static const sctp_sm_table_entry_t primitive_event_table[SCTP_NUM_PRIMITIVE_TYPES][SCTP_STATE_NUM_STATES] = {
 679         TYPE_SCTP_PRIMITIVE_ASSOCIATE,
 680         TYPE_SCTP_PRIMITIVE_SHUTDOWN,
 681         TYPE_SCTP_PRIMITIVE_ABORT,
 682         TYPE_SCTP_PRIMITIVE_SEND,
 683         TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT,
 684         TYPE_SCTP_PRIMITIVE_ASCONF,
 685 };
 686
 687 #define TYPE_SCTP_OTHER_NO_PENDING_TSN  { \
 688         /* SCTP_STATE_EMPTY */ \
 689         TYPE_SCTP_FUNC(sctp_sf_bug), \
 690         /* SCTP_STATE_CLOSED */ \
 691         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 692         /* SCTP_STATE_COOKIE_WAIT */ \
 693         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 694         /* SCTP_STATE_COOKIE_ECHOED */ \
 695         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 696         /* SCTP_STATE_ESTABLISHED */ \
 697         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 698         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 699         TYPE_SCTP_FUNC(sctp_sf_do_9_2_start_shutdown), \
 700         /* SCTP_STATE_SHUTDOWN_SENT */ \
 701         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 702         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 703         TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown_ack), \
 704         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 705         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 706 }
 707
 708 #define TYPE_SCTP_OTHER_ICMP_PROTO_UNREACH  { \
 709         /* SCTP_STATE_EMPTY */ \
 710         TYPE_SCTP_FUNC(sctp_sf_bug), \
 711         /* SCTP_STATE_CLOSED */ \
 712         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 713         /* SCTP_STATE_COOKIE_WAIT */ \
 714         TYPE_SCTP_FUNC(sctp_sf_cookie_wait_icmp_abort), \
 715         /* SCTP_STATE_COOKIE_ECHOED */ \
 716         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 717         /* SCTP_STATE_ESTABLISHED */ \
 718         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 719         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 720         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 721         /* SCTP_STATE_SHUTDOWN_SENT */ \
 722         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 723         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 724         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 725         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 726         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 727 }
 728
 729 static const sctp_sm_table_entry_t other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STATES] = {
 730         TYPE_SCTP_OTHER_NO_PENDING_TSN,
 731         TYPE_SCTP_OTHER_ICMP_PROTO_UNREACH,
 732 };
 733
 734 #define TYPE_SCTP_EVENT_TIMEOUT_NONE { \
 735         /* SCTP_STATE_EMPTY */ \
 736         TYPE_SCTP_FUNC(sctp_sf_bug), \
 737         /* SCTP_STATE_CLOSED */ \
 738         TYPE_SCTP_FUNC(sctp_sf_bug), \
 739         /* SCTP_STATE_COOKIE_WAIT */ \
 740         TYPE_SCTP_FUNC(sctp_sf_bug), \
 741         /* SCTP_STATE_COOKIE_ECHOED */ \
 742         TYPE_SCTP_FUNC(sctp_sf_bug), \
 743         /* SCTP_STATE_ESTABLISHED */ \
 744         TYPE_SCTP_FUNC(sctp_sf_bug), \
 745         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 746         TYPE_SCTP_FUNC(sctp_sf_bug), \
 747         /* SCTP_STATE_SHUTDOWN_SENT */ \
 748         TYPE_SCTP_FUNC(sctp_sf_bug), \
 749         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 750         TYPE_SCTP_FUNC(sctp_sf_bug), \
 751         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 752         TYPE_SCTP_FUNC(sctp_sf_bug), \
 753 }
 754
 755 #define TYPE_SCTP_EVENT_TIMEOUT_T1_COOKIE { \
 756         /* SCTP_STATE_EMPTY */ \
 757         TYPE_SCTP_FUNC(sctp_sf_bug), \
 758         /* SCTP_STATE_CLOSED */ \
 759         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 760         /* SCTP_STATE_COOKIE_WAIT */ \
 761         TYPE_SCTP_FUNC(sctp_sf_bug), \
 762         /* SCTP_STATE_COOKIE_ECHOED */ \
 763         TYPE_SCTP_FUNC(sctp_sf_t1_cookie_timer_expire), \
 764         /* SCTP_STATE_ESTABLISHED */ \
 765         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 766         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 767         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 768         /* SCTP_STATE_SHUTDOWN_SENT */ \
 769         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 770         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 771         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 772         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 773         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 774 }
 775
 776 #define TYPE_SCTP_EVENT_TIMEOUT_T1_INIT { \
 777         /* SCTP_STATE_EMPTY */ \
 778         TYPE_SCTP_FUNC(sctp_sf_bug), \
 779         /* SCTP_STATE_CLOSED */ \
 780         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 781         /* SCTP_STATE_COOKIE_WAIT */ \
 782         TYPE_SCTP_FUNC(sctp_sf_t1_init_timer_expire), \
 783         /* SCTP_STATE_COOKIE_ECHOED */ \
 784         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 785         /* SCTP_STATE_ESTABLISHED */ \
 786         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 787         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 788         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 789         /* SCTP_STATE_SHUTDOWN_SENT */ \
 790         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 791         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 792         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 793         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 794         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 795 }
 796
 797 #define TYPE_SCTP_EVENT_TIMEOUT_T2_SHUTDOWN { \
 798         /* SCTP_STATE_EMPTY */ \
 799         TYPE_SCTP_FUNC(sctp_sf_bug), \
 800         /* SCTP_STATE_CLOSED */ \
 801         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 802         /* SCTP_STATE_COOKIE_WAIT */ \
 803         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 804         /* SCTP_STATE_COOKIE_ECHOED */ \
 805         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 806         /* SCTP_STATE_ESTABLISHED */ \
 807         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 808         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 809         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 810         /* SCTP_STATE_SHUTDOWN_SENT */ \
 811         TYPE_SCTP_FUNC(sctp_sf_t2_timer_expire), \
 812         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 813         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 814         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 815         TYPE_SCTP_FUNC(sctp_sf_t2_timer_expire), \
 816 }
 817
 818 #define TYPE_SCTP_EVENT_TIMEOUT_T3_RTX { \
 819         /* SCTP_STATE_EMPTY */ \
 820         TYPE_SCTP_FUNC(sctp_sf_bug), \
 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_do_6_3_3_rtx), \
 827         /* SCTP_STATE_ESTABLISHED */ \
 828         TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
 829         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 830         TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
 831         /* SCTP_STATE_SHUTDOWN_SENT */ \
 832         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 833         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 834         TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
 835         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 836         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 837 }
 838
 839 #define TYPE_SCTP_EVENT_TIMEOUT_T4_RTO { \
 840         /* SCTP_STATE_EMPTY */ \
 841         TYPE_SCTP_FUNC(sctp_sf_bug), \
 842         /* SCTP_STATE_CLOSED */ \
 843         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 844         /* SCTP_STATE_COOKIE_WAIT */ \
 845         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 846         /* SCTP_STATE_COOKIE_ECHOED */ \
 847         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 848         /* SCTP_STATE_ESTABLISHED */ \
 849         TYPE_SCTP_FUNC(sctp_sf_t4_timer_expire), \
 850         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 851         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 852         /* SCTP_STATE_SHUTDOWN_SENT */ \
 853         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 854         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 855         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 856         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 857         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 858 }
 859
 860 #define TYPE_SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD { \
 861         /* SCTP_STATE_EMPTY */ \
 862         TYPE_SCTP_FUNC(sctp_sf_bug), \
 863         /* SCTP_STATE_CLOSED */ \
 864         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 865         /* SCTP_STATE_COOKIE_WAIT */ \
 866         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 867         /* SCTP_STATE_COOKIE_ECHOED */ \
 868         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 869         /* SCTP_STATE_ESTABLISHED */ \
 870         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 871         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 872         TYPE_SCTP_FUNC(sctp_sf_t5_timer_expire), \
 873         /* SCTP_STATE_SHUTDOWN_SENT */ \
 874         TYPE_SCTP_FUNC(sctp_sf_t5_timer_expire), \
 875         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 876         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 877         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 878         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 879 }
 880
 881 #define TYPE_SCTP_EVENT_TIMEOUT_HEARTBEAT { \
 882         /* SCTP_STATE_EMPTY */ \
 883         TYPE_SCTP_FUNC(sctp_sf_bug), \
 884         /* SCTP_STATE_CLOSED */ \
 885         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 886         /* SCTP_STATE_COOKIE_WAIT */ \
 887         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 888         /* SCTP_STATE_COOKIE_ECHOED */ \
 889         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 890         /* SCTP_STATE_ESTABLISHED */ \
 891         TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
 892         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 893         TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
 894         /* SCTP_STATE_SHUTDOWN_SENT */ \
 895         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 896         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 897         TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
 898         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 899         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 900 }
 901
 902 #define TYPE_SCTP_EVENT_TIMEOUT_SACK { \
 903         /* SCTP_STATE_EMPTY */ \
 904         TYPE_SCTP_FUNC(sctp_sf_bug), \
 905         /* SCTP_STATE_CLOSED */ \
 906         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 907         /* SCTP_STATE_COOKIE_WAIT */ \
 908         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 909         /* SCTP_STATE_COOKIE_ECHOED */ \
 910         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 911         /* SCTP_STATE_ESTABLISHED */ \
 912         TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
 913         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 914         TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
 915         /* SCTP_STATE_SHUTDOWN_SENT */ \
 916         TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
 917         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 918         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 919         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 920         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 921 }
 922
 923 #define TYPE_SCTP_EVENT_TIMEOUT_AUTOCLOSE { \
 924         /* SCTP_STATE_EMPTY */ \
 925         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 926         /* SCTP_STATE_CLOSED */ \
 927         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 928         /* SCTP_STATE_COOKIE_WAIT */ \
 929         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 930         /* SCTP_STATE_COOKIE_ECHOED */ \
 931         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 932         /* SCTP_STATE_ESTABLISHED */ \
 933         TYPE_SCTP_FUNC(sctp_sf_autoclose_timer_expire), \
 934         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 935         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 936         /* SCTP_STATE_SHUTDOWN_SENT */ \
 937         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 938         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 939         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 940         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 941         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 942 }
 943
 944 static const sctp_sm_table_entry_t timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][SCTP_STATE_NUM_STATES] = {
 945         TYPE_SCTP_EVENT_TIMEOUT_NONE,
 946         TYPE_SCTP_EVENT_TIMEOUT_T1_COOKIE,
 947         TYPE_SCTP_EVENT_TIMEOUT_T1_INIT,
 948         TYPE_SCTP_EVENT_TIMEOUT_T2_SHUTDOWN,
 949         TYPE_SCTP_EVENT_TIMEOUT_T3_RTX,
 950         TYPE_SCTP_EVENT_TIMEOUT_T4_RTO,
 951         TYPE_SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD,
 952         TYPE_SCTP_EVENT_TIMEOUT_HEARTBEAT,
 953         TYPE_SCTP_EVENT_TIMEOUT_SACK,
 954         TYPE_SCTP_EVENT_TIMEOUT_AUTOCLOSE,
 955 };
 956
 957 static const sctp_sm_table_entry_t *sctp_chunk_event_lookup(sctp_cid_t cid,
 958                                                             sctp_state_t state)
 959 {
 960         if (state > SCTP_STATE_MAX)
 961                 return &bug;
 962
 963         if (cid >= 0 && cid <= SCTP_CID_BASE_MAX)
 964                 return &chunk_event_table[cid][state];
 965
 966         if (sctp_prsctp_enable) {
 967                 if (cid == SCTP_CID_FWD_TSN)
 968                         return &prsctp_chunk_event_table[0][state];
 969         }
 970
 971         if (sctp_addip_enable) {
 972                 if (cid == SCTP_CID_ASCONF)
 973                         return &addip_chunk_event_table[0][state];
 974
 975                 if (cid == SCTP_CID_ASCONF_ACK)
 976                         return &addip_chunk_event_table[1][state];
 977         }
 978
 979         return &chunk_event_table_unknown[state];
 980 }