net/sctp/sm_statetable.c

   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                                                             enum sctp_cid 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_RECONF { \
 486         /* SCTP_STATE_CLOSED */ \
 487         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 488         /* SCTP_STATE_COOKIE_WAIT */ \
 489         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 490         /* SCTP_STATE_COOKIE_ECHOED */ \
 491         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 492         /* SCTP_STATE_ESTABLISHED */ \
 493         TYPE_SCTP_FUNC(sctp_sf_do_reconf), \
 494         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 495         TYPE_SCTP_FUNC(sctp_sf_do_reconf), \
 496         /* SCTP_STATE_SHUTDOWN_SENT */ \
 497         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 498         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 499         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 500         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 501         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 502 } /* TYPE_SCTP_RECONF */
 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 reconf_chunk_event_table[SCTP_NUM_RECONF_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
 508         TYPE_SCTP_RECONF,
 509 }; /*state_fn_t reconf_chunk_event_table[][] */
 510
 511 #define TYPE_SCTP_AUTH { \
 512         /* SCTP_STATE_CLOSED */ \
 513         TYPE_SCTP_FUNC(sctp_sf_ootb), \
 514         /* SCTP_STATE_COOKIE_WAIT */ \
 515         TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
 516         /* SCTP_STATE_COOKIE_ECHOED */ \
 517         TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
 518         /* SCTP_STATE_ESTABLISHED */ \
 519         TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
 520         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 521         TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
 522         /* SCTP_STATE_SHUTDOWN_SENT */ \
 523         TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
 524         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 525         TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
 526         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 527         TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
 528 } /* TYPE_SCTP_AUTH */
 529
 530 /* The primary index for this table is the chunk type.
 531  * The secondary index for this table is the state.
 532  */
 533 static const sctp_sm_table_entry_t auth_chunk_event_table[SCTP_NUM_AUTH_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {
 534         TYPE_SCTP_AUTH,
 535 }; /*state_fn_t auth_chunk_event_table[][] */
 536
 537 static const sctp_sm_table_entry_t
 538 chunk_event_table_unknown[SCTP_STATE_NUM_STATES] = {
 539         /* SCTP_STATE_CLOSED */
 540         TYPE_SCTP_FUNC(sctp_sf_ootb),
 541         /* SCTP_STATE_COOKIE_WAIT */
 542         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
 543         /* SCTP_STATE_COOKIE_ECHOED */
 544         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
 545         /* SCTP_STATE_ESTABLISHED */
 546         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
 547         /* SCTP_STATE_SHUTDOWN_PENDING */
 548         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
 549         /* SCTP_STATE_SHUTDOWN_SENT */
 550         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
 551         /* SCTP_STATE_SHUTDOWN_RECEIVED */
 552         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
 553         /* SCTP_STATE_SHUTDOWN_ACK_SENT */
 554         TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
 555 };      /* chunk unknown */
 556
 557
 558 #define TYPE_SCTP_PRIMITIVE_ASSOCIATE  { \
 559         /* SCTP_STATE_CLOSED */ \
 560         TYPE_SCTP_FUNC(sctp_sf_do_prm_asoc), \
 561         /* SCTP_STATE_COOKIE_WAIT */ \
 562         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
 563         /* SCTP_STATE_COOKIE_ECHOED */ \
 564         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
 565         /* SCTP_STATE_ESTABLISHED */ \
 566         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
 567         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 568         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
 569         /* SCTP_STATE_SHUTDOWN_SENT */ \
 570         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
 571         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 572         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
 573         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 574         TYPE_SCTP_FUNC(sctp_sf_not_impl), \
 575 } /* TYPE_SCTP_PRIMITIVE_ASSOCIATE */
 576
 577 #define TYPE_SCTP_PRIMITIVE_SHUTDOWN  { \
 578         /* SCTP_STATE_CLOSED */ \
 579         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
 580         /* SCTP_STATE_COOKIE_WAIT */ \
 581         TYPE_SCTP_FUNC(sctp_sf_cookie_wait_prm_shutdown), \
 582         /* SCTP_STATE_COOKIE_ECHOED */ \
 583         TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_prm_shutdown),\
 584         /* SCTP_STATE_ESTABLISHED */ \
 585         TYPE_SCTP_FUNC(sctp_sf_do_9_2_prm_shutdown), \
 586         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 587         TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
 588         /* SCTP_STATE_SHUTDOWN_SENT */ \
 589         TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
 590         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 591         TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
 592         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 593         TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
 594 } /* TYPE_SCTP_PRIMITIVE_SHUTDOWN */
 595
 596 #define TYPE_SCTP_PRIMITIVE_ABORT  { \
 597         /* SCTP_STATE_CLOSED */ \
 598         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
 599         /* SCTP_STATE_COOKIE_WAIT */ \
 600         TYPE_SCTP_FUNC(sctp_sf_cookie_wait_prm_abort), \
 601         /* SCTP_STATE_COOKIE_ECHOED */ \
 602         TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_prm_abort), \
 603         /* SCTP_STATE_ESTABLISHED */ \
 604         TYPE_SCTP_FUNC(sctp_sf_do_9_1_prm_abort), \
 605         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 606         TYPE_SCTP_FUNC(sctp_sf_shutdown_pending_prm_abort), \
 607         /* SCTP_STATE_SHUTDOWN_SENT */ \
 608         TYPE_SCTP_FUNC(sctp_sf_shutdown_sent_prm_abort), \
 609         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 610         TYPE_SCTP_FUNC(sctp_sf_do_9_1_prm_abort), \
 611         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 612         TYPE_SCTP_FUNC(sctp_sf_shutdown_ack_sent_prm_abort), \
 613 } /* TYPE_SCTP_PRIMITIVE_ABORT */
 614
 615 #define TYPE_SCTP_PRIMITIVE_SEND  { \
 616         /* SCTP_STATE_CLOSED */ \
 617         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
 618         /* SCTP_STATE_COOKIE_WAIT */ \
 619         TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
 620         /* SCTP_STATE_COOKIE_ECHOED */ \
 621         TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
 622         /* SCTP_STATE_ESTABLISHED */ \
 623         TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
 624         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 625         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
 626         /* SCTP_STATE_SHUTDOWN_SENT */ \
 627         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
 628         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 629         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
 630         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 631         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
 632 } /* TYPE_SCTP_PRIMITIVE_SEND */
 633
 634 #define TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT  { \
 635         /* SCTP_STATE_CLOSED */ \
 636         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
 637         /* SCTP_STATE_COOKIE_WAIT */ \
 638         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
 639         /* SCTP_STATE_COOKIE_ECHOED */ \
 640         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
 641         /* SCTP_STATE_ESTABLISHED */ \
 642         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
 643         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 644         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
 645         /* SCTP_STATE_SHUTDOWN_SENT */ \
 646         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
 647         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 648         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
 649         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 650         TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat),          \
 651 } /* TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT */
 652
 653 #define TYPE_SCTP_PRIMITIVE_ASCONF { \
 654         /* SCTP_STATE_CLOSED */ \
 655         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
 656         /* SCTP_STATE_COOKIE_WAIT */ \
 657         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
 658         /* SCTP_STATE_COOKIE_ECHOED */ \
 659         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
 660         /* SCTP_STATE_ESTABLISHED */ \
 661         TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
 662         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 663         TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
 664         /* SCTP_STATE_SHUTDOWN_SENT */ \
 665         TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
 666         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 667         TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
 668         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 669         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
 670 } /* TYPE_SCTP_PRIMITIVE_ASCONF */
 671
 672 #define TYPE_SCTP_PRIMITIVE_RECONF { \
 673         /* SCTP_STATE_CLOSED */ \
 674         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
 675         /* SCTP_STATE_COOKIE_WAIT */ \
 676         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
 677         /* SCTP_STATE_COOKIE_ECHOED */ \
 678         TYPE_SCTP_FUNC(sctp_sf_error_closed), \
 679         /* SCTP_STATE_ESTABLISHED */ \
 680         TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \
 681         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 682         TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \
 683         /* SCTP_STATE_SHUTDOWN_SENT */ \
 684         TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \
 685         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 686         TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \
 687         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 688         TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
 689 } /* TYPE_SCTP_PRIMITIVE_RECONF */
 690
 691 /* The primary index for this table is the primitive type.
 692  * The secondary index for this table is the state.
 693  */
 694 static const sctp_sm_table_entry_t primitive_event_table[SCTP_NUM_PRIMITIVE_TYPES][SCTP_STATE_NUM_STATES] = {
 695         TYPE_SCTP_PRIMITIVE_ASSOCIATE,
 696         TYPE_SCTP_PRIMITIVE_SHUTDOWN,
 697         TYPE_SCTP_PRIMITIVE_ABORT,
 698         TYPE_SCTP_PRIMITIVE_SEND,
 699         TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT,
 700         TYPE_SCTP_PRIMITIVE_ASCONF,
 701         TYPE_SCTP_PRIMITIVE_RECONF,
 702 };
 703
 704 #define TYPE_SCTP_OTHER_NO_PENDING_TSN  { \
 705         /* SCTP_STATE_CLOSED */ \
 706         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 707         /* SCTP_STATE_COOKIE_WAIT */ \
 708         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 709         /* SCTP_STATE_COOKIE_ECHOED */ \
 710         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 711         /* SCTP_STATE_ESTABLISHED */ \
 712         TYPE_SCTP_FUNC(sctp_sf_do_no_pending_tsn), \
 713         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 714         TYPE_SCTP_FUNC(sctp_sf_do_9_2_start_shutdown), \
 715         /* SCTP_STATE_SHUTDOWN_SENT */ \
 716         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 717         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 718         TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown_ack), \
 719         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 720         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 721 }
 722
 723 #define TYPE_SCTP_OTHER_ICMP_PROTO_UNREACH  { \
 724         /* SCTP_STATE_CLOSED */ \
 725         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 726         /* SCTP_STATE_COOKIE_WAIT */ \
 727         TYPE_SCTP_FUNC(sctp_sf_cookie_wait_icmp_abort), \
 728         /* SCTP_STATE_COOKIE_ECHOED */ \
 729         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 730         /* SCTP_STATE_ESTABLISHED */ \
 731         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 732         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 733         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 734         /* SCTP_STATE_SHUTDOWN_SENT */ \
 735         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 736         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 737         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 738         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 739         TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
 740 }
 741
 742 static const sctp_sm_table_entry_t other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STATES] = {
 743         TYPE_SCTP_OTHER_NO_PENDING_TSN,
 744         TYPE_SCTP_OTHER_ICMP_PROTO_UNREACH,
 745 };
 746
 747 #define TYPE_SCTP_EVENT_TIMEOUT_NONE { \
 748         /* SCTP_STATE_CLOSED */ \
 749         TYPE_SCTP_FUNC(sctp_sf_bug), \
 750         /* SCTP_STATE_COOKIE_WAIT */ \
 751         TYPE_SCTP_FUNC(sctp_sf_bug), \
 752         /* SCTP_STATE_COOKIE_ECHOED */ \
 753         TYPE_SCTP_FUNC(sctp_sf_bug), \
 754         /* SCTP_STATE_ESTABLISHED */ \
 755         TYPE_SCTP_FUNC(sctp_sf_bug), \
 756         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 757         TYPE_SCTP_FUNC(sctp_sf_bug), \
 758         /* SCTP_STATE_SHUTDOWN_SENT */ \
 759         TYPE_SCTP_FUNC(sctp_sf_bug), \
 760         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 761         TYPE_SCTP_FUNC(sctp_sf_bug), \
 762         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 763         TYPE_SCTP_FUNC(sctp_sf_bug), \
 764 }
 765
 766 #define TYPE_SCTP_EVENT_TIMEOUT_T1_COOKIE { \
 767         /* SCTP_STATE_CLOSED */ \
 768         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 769         /* SCTP_STATE_COOKIE_WAIT */ \
 770         TYPE_SCTP_FUNC(sctp_sf_bug), \
 771         /* SCTP_STATE_COOKIE_ECHOED */ \
 772         TYPE_SCTP_FUNC(sctp_sf_t1_cookie_timer_expire), \
 773         /* SCTP_STATE_ESTABLISHED */ \
 774         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 775         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 776         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 777         /* SCTP_STATE_SHUTDOWN_SENT */ \
 778         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 779         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 780         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 781         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 782         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 783 }
 784
 785 #define TYPE_SCTP_EVENT_TIMEOUT_T1_INIT { \
 786         /* SCTP_STATE_CLOSED */ \
 787         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 788         /* SCTP_STATE_COOKIE_WAIT */ \
 789         TYPE_SCTP_FUNC(sctp_sf_t1_init_timer_expire), \
 790         /* SCTP_STATE_COOKIE_ECHOED */ \
 791         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 792         /* SCTP_STATE_ESTABLISHED */ \
 793         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 794         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 795         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 796         /* SCTP_STATE_SHUTDOWN_SENT */ \
 797         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 798         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 799         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 800         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 801         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 802 }
 803
 804 #define TYPE_SCTP_EVENT_TIMEOUT_T2_SHUTDOWN { \
 805         /* SCTP_STATE_CLOSED */ \
 806         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 807         /* SCTP_STATE_COOKIE_WAIT */ \
 808         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 809         /* SCTP_STATE_COOKIE_ECHOED */ \
 810         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 811         /* SCTP_STATE_ESTABLISHED */ \
 812         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 813         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 814         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 815         /* SCTP_STATE_SHUTDOWN_SENT */ \
 816         TYPE_SCTP_FUNC(sctp_sf_t2_timer_expire), \
 817         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 818         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 819         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 820         TYPE_SCTP_FUNC(sctp_sf_t2_timer_expire), \
 821 }
 822
 823 #define TYPE_SCTP_EVENT_TIMEOUT_T3_RTX { \
 824         /* SCTP_STATE_CLOSED */ \
 825         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 826         /* SCTP_STATE_COOKIE_WAIT */ \
 827         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 828         /* SCTP_STATE_COOKIE_ECHOED */ \
 829         TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
 830         /* SCTP_STATE_ESTABLISHED */ \
 831         TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
 832         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 833         TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
 834         /* SCTP_STATE_SHUTDOWN_SENT */ \
 835         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 836         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 837         TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
 838         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 839         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 840 }
 841
 842 #define TYPE_SCTP_EVENT_TIMEOUT_T4_RTO { \
 843         /* SCTP_STATE_CLOSED */ \
 844         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 845         /* SCTP_STATE_COOKIE_WAIT */ \
 846         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 847         /* SCTP_STATE_COOKIE_ECHOED */ \
 848         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 849         /* SCTP_STATE_ESTABLISHED */ \
 850         TYPE_SCTP_FUNC(sctp_sf_t4_timer_expire), \
 851         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 852         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 853         /* SCTP_STATE_SHUTDOWN_SENT */ \
 854         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 855         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 856         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 857         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 858         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 859 }
 860
 861 #define TYPE_SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD { \
 862         /* SCTP_STATE_CLOSED */ \
 863         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 864         /* SCTP_STATE_COOKIE_WAIT */ \
 865         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 866         /* SCTP_STATE_COOKIE_ECHOED */ \
 867         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 868         /* SCTP_STATE_ESTABLISHED */ \
 869         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 870         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 871         TYPE_SCTP_FUNC(sctp_sf_t5_timer_expire), \
 872         /* SCTP_STATE_SHUTDOWN_SENT */ \
 873         TYPE_SCTP_FUNC(sctp_sf_t5_timer_expire), \
 874         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 875         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 876         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 877         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 878 }
 879
 880 #define TYPE_SCTP_EVENT_TIMEOUT_HEARTBEAT { \
 881         /* SCTP_STATE_CLOSED */ \
 882         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 883         /* SCTP_STATE_COOKIE_WAIT */ \
 884         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 885         /* SCTP_STATE_COOKIE_ECHOED */ \
 886         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 887         /* SCTP_STATE_ESTABLISHED */ \
 888         TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
 889         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 890         TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
 891         /* SCTP_STATE_SHUTDOWN_SENT */ \
 892         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 893         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 894         TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
 895         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 896         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 897 }
 898
 899 #define TYPE_SCTP_EVENT_TIMEOUT_SACK { \
 900         /* SCTP_STATE_CLOSED */ \
 901         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 902         /* SCTP_STATE_COOKIE_WAIT */ \
 903         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 904         /* SCTP_STATE_COOKIE_ECHOED */ \
 905         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 906         /* SCTP_STATE_ESTABLISHED */ \
 907         TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
 908         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 909         TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
 910         /* SCTP_STATE_SHUTDOWN_SENT */ \
 911         TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
 912         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 913         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 914         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 915         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 916 }
 917
 918 #define TYPE_SCTP_EVENT_TIMEOUT_AUTOCLOSE { \
 919         /* SCTP_STATE_CLOSED */ \
 920         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 921         /* SCTP_STATE_COOKIE_WAIT */ \
 922         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 923         /* SCTP_STATE_COOKIE_ECHOED */ \
 924         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 925         /* SCTP_STATE_ESTABLISHED */ \
 926         TYPE_SCTP_FUNC(sctp_sf_autoclose_timer_expire), \
 927         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 928         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 929         /* SCTP_STATE_SHUTDOWN_SENT */ \
 930         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 931         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 932         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 933         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 934         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 935 }
 936
 937 #define TYPE_SCTP_EVENT_TIMEOUT_RECONF { \
 938         /* SCTP_STATE_CLOSED */ \
 939         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 940         /* SCTP_STATE_COOKIE_WAIT */ \
 941         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 942         /* SCTP_STATE_COOKIE_ECHOED */ \
 943         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 944         /* SCTP_STATE_ESTABLISHED */ \
 945         TYPE_SCTP_FUNC(sctp_sf_send_reconf), \
 946         /* SCTP_STATE_SHUTDOWN_PENDING */ \
 947         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 948         /* SCTP_STATE_SHUTDOWN_SENT */ \
 949         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 950         /* SCTP_STATE_SHUTDOWN_RECEIVED */ \
 951         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 952         /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
 953         TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
 954 }
 955
 956 static const sctp_sm_table_entry_t timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][SCTP_STATE_NUM_STATES] = {
 957         TYPE_SCTP_EVENT_TIMEOUT_NONE,
 958         TYPE_SCTP_EVENT_TIMEOUT_T1_COOKIE,
 959         TYPE_SCTP_EVENT_TIMEOUT_T1_INIT,
 960         TYPE_SCTP_EVENT_TIMEOUT_T2_SHUTDOWN,
 961         TYPE_SCTP_EVENT_TIMEOUT_T3_RTX,
 962         TYPE_SCTP_EVENT_TIMEOUT_T4_RTO,
 963         TYPE_SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD,
 964         TYPE_SCTP_EVENT_TIMEOUT_HEARTBEAT,
 965         TYPE_SCTP_EVENT_TIMEOUT_RECONF,
 966         TYPE_SCTP_EVENT_TIMEOUT_SACK,
 967         TYPE_SCTP_EVENT_TIMEOUT_AUTOCLOSE,
 968 };
 969
 970 static const sctp_sm_table_entry_t *sctp_chunk_event_lookup(struct net *net,
 971                                                             enum sctp_cid cid,
 972                                                             sctp_state_t state)
 973 {
 974         if (state > SCTP_STATE_MAX)
 975                 return &bug;
 976
 977         if (cid <= SCTP_CID_BASE_MAX)
 978                 return &chunk_event_table[cid][state];
 979
 980         if (net->sctp.prsctp_enable) {
 981                 if (cid == SCTP_CID_FWD_TSN)
 982                         return &prsctp_chunk_event_table[0][state];
 983         }
 984
 985         if (net->sctp.addip_enable) {
 986                 if (cid == SCTP_CID_ASCONF)
 987                         return &addip_chunk_event_table[0][state];
 988
 989                 if (cid == SCTP_CID_ASCONF_ACK)
 990                         return &addip_chunk_event_table[1][state];
 991         }
 992
 993         if (net->sctp.reconf_enable)
 994                 if (cid == SCTP_CID_RECONF)
 995                         return &reconf_chunk_event_table[0][state];
 996
 997         if (net->sctp.auth_enable) {
 998                 if (cid == SCTP_CID_AUTH)
 999                         return &auth_chunk_event_table[0][state];
1000         }
1001
1002         return &chunk_event_table_unknown[state];
1003 }