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_do_5_2_3_initack), \ 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 } 981