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 struct sctp_sm_table_entry 49 primitive_event_table[SCTP_NUM_PRIMITIVE_TYPES][SCTP_STATE_NUM_STATES]; 50 static const struct sctp_sm_table_entry 51 other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STATES]; 52 static const struct sctp_sm_table_entry 53 timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][SCTP_STATE_NUM_STATES]; 54 55 static const struct sctp_sm_table_entry *sctp_chunk_event_lookup( 56 struct net *net, 57 enum sctp_cid cid, 58 enum sctp_state state); 59 60 61 static const struct sctp_sm_table_entry bug = { 62 .fn = sctp_sf_bug, 63 .name = "sctp_sf_bug" 64 }; 65 66 #define DO_LOOKUP(_max, _type, _table) \ 67 ({ \ 68 const struct sctp_sm_table_entry *rtn; \ 69 \ 70 if ((event_subtype._type > (_max))) { \ 71 pr_warn("table %p possible attack: event %d exceeds max %d\n", \ 72 _table, event_subtype._type, _max); \ 73 rtn = &bug; \ 74 } else \ 75 rtn = &_table[event_subtype._type][(int)state]; \ 76 \ 77 rtn; \ 78 }) 79 80 const struct sctp_sm_table_entry *sctp_sm_lookup_event( 81 struct net *net, 82 enum sctp_event event_type, 83 enum sctp_state state, 84 union sctp_subtype event_subtype) 85 { 86 switch (event_type) { 87 case SCTP_EVENT_T_CHUNK: 88 return sctp_chunk_event_lookup(net, event_subtype.chunk, state); 89 case SCTP_EVENT_T_TIMEOUT: 90 return DO_LOOKUP(SCTP_EVENT_TIMEOUT_MAX, timeout, 91 timeout_event_table); 92 case SCTP_EVENT_T_OTHER: 93 return DO_LOOKUP(SCTP_EVENT_OTHER_MAX, other, 94 other_event_table); 95 case SCTP_EVENT_T_PRIMITIVE: 96 return DO_LOOKUP(SCTP_EVENT_PRIMITIVE_MAX, primitive, 97 primitive_event_table); 98 default: 99 /* Yikes! We got an illegal event type. */ 100 return &bug; 101 } 102 } 103 104 #define TYPE_SCTP_FUNC(func) {.fn = func, .name = #func} 105 106 #define TYPE_SCTP_DATA { \ 107 /* SCTP_STATE_CLOSED */ \ 108 TYPE_SCTP_FUNC(sctp_sf_ootb), \ 109 /* SCTP_STATE_COOKIE_WAIT */ \ 110 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 111 /* SCTP_STATE_COOKIE_ECHOED */ \ 112 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 113 /* SCTP_STATE_ESTABLISHED */ \ 114 TYPE_SCTP_FUNC(sctp_sf_eat_data_6_2), \ 115 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 116 TYPE_SCTP_FUNC(sctp_sf_eat_data_6_2), \ 117 /* SCTP_STATE_SHUTDOWN_SENT */ \ 118 TYPE_SCTP_FUNC(sctp_sf_eat_data_fast_4_4), \ 119 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 120 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 121 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 122 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 123 } /* TYPE_SCTP_DATA */ 124 125 #define TYPE_SCTP_INIT { \ 126 /* SCTP_STATE_CLOSED */ \ 127 TYPE_SCTP_FUNC(sctp_sf_do_5_1B_init), \ 128 /* SCTP_STATE_COOKIE_WAIT */ \ 129 TYPE_SCTP_FUNC(sctp_sf_do_5_2_1_siminit), \ 130 /* SCTP_STATE_COOKIE_ECHOED */ \ 131 TYPE_SCTP_FUNC(sctp_sf_do_5_2_1_siminit), \ 132 /* SCTP_STATE_ESTABLISHED */ \ 133 TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \ 134 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 135 TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \ 136 /* SCTP_STATE_SHUTDOWN_SENT */ \ 137 TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \ 138 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 139 TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \ 140 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 141 TYPE_SCTP_FUNC(sctp_sf_do_9_2_reshutack), \ 142 } /* TYPE_SCTP_INIT */ 143 144 #define TYPE_SCTP_INIT_ACK { \ 145 /* SCTP_STATE_CLOSED */ \ 146 TYPE_SCTP_FUNC(sctp_sf_do_5_2_3_initack), \ 147 /* SCTP_STATE_COOKIE_WAIT */ \ 148 TYPE_SCTP_FUNC(sctp_sf_do_5_1C_ack), \ 149 /* SCTP_STATE_COOKIE_ECHOED */ \ 150 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 151 /* SCTP_STATE_ESTABLISHED */ \ 152 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 153 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 154 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 155 /* SCTP_STATE_SHUTDOWN_SENT */ \ 156 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 157 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 158 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 159 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 160 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 161 } /* TYPE_SCTP_INIT_ACK */ 162 163 #define TYPE_SCTP_SACK { \ 164 /* SCTP_STATE_CLOSED */ \ 165 TYPE_SCTP_FUNC(sctp_sf_ootb), \ 166 /* SCTP_STATE_COOKIE_WAIT */ \ 167 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 168 /* SCTP_STATE_COOKIE_ECHOED */ \ 169 TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \ 170 /* SCTP_STATE_ESTABLISHED */ \ 171 TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \ 172 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 173 TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \ 174 /* SCTP_STATE_SHUTDOWN_SENT */ \ 175 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 176 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 177 TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \ 178 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 179 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 180 } /* TYPE_SCTP_SACK */ 181 182 #define TYPE_SCTP_HEARTBEAT { \ 183 /* SCTP_STATE_CLOSED */ \ 184 TYPE_SCTP_FUNC(sctp_sf_ootb), \ 185 /* SCTP_STATE_COOKIE_WAIT */ \ 186 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 187 /* SCTP_STATE_COOKIE_ECHOED */ \ 188 TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \ 189 /* SCTP_STATE_ESTABLISHED */ \ 190 TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \ 191 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 192 TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \ 193 /* SCTP_STATE_SHUTDOWN_SENT */ \ 194 TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \ 195 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 196 TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \ 197 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 198 /* This should not happen, but we are nice. */ \ 199 TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \ 200 } /* TYPE_SCTP_HEARTBEAT */ 201 202 #define TYPE_SCTP_HEARTBEAT_ACK { \ 203 /* SCTP_STATE_CLOSED */ \ 204 TYPE_SCTP_FUNC(sctp_sf_ootb), \ 205 /* SCTP_STATE_COOKIE_WAIT */ \ 206 TYPE_SCTP_FUNC(sctp_sf_violation), \ 207 /* SCTP_STATE_COOKIE_ECHOED */ \ 208 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 209 /* SCTP_STATE_ESTABLISHED */ \ 210 TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \ 211 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 212 TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \ 213 /* SCTP_STATE_SHUTDOWN_SENT */ \ 214 TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \ 215 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 216 TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \ 217 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 218 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 219 } /* TYPE_SCTP_HEARTBEAT_ACK */ 220 221 #define TYPE_SCTP_ABORT { \ 222 /* SCTP_STATE_CLOSED */ \ 223 TYPE_SCTP_FUNC(sctp_sf_pdiscard), \ 224 /* SCTP_STATE_COOKIE_WAIT */ \ 225 TYPE_SCTP_FUNC(sctp_sf_cookie_wait_abort), \ 226 /* SCTP_STATE_COOKIE_ECHOED */ \ 227 TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_abort), \ 228 /* SCTP_STATE_ESTABLISHED */ \ 229 TYPE_SCTP_FUNC(sctp_sf_do_9_1_abort), \ 230 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 231 TYPE_SCTP_FUNC(sctp_sf_shutdown_pending_abort), \ 232 /* SCTP_STATE_SHUTDOWN_SENT */ \ 233 TYPE_SCTP_FUNC(sctp_sf_shutdown_sent_abort), \ 234 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 235 TYPE_SCTP_FUNC(sctp_sf_do_9_1_abort), \ 236 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 237 TYPE_SCTP_FUNC(sctp_sf_shutdown_ack_sent_abort), \ 238 } /* TYPE_SCTP_ABORT */ 239 240 #define TYPE_SCTP_SHUTDOWN { \ 241 /* SCTP_STATE_CLOSED */ \ 242 TYPE_SCTP_FUNC(sctp_sf_ootb), \ 243 /* SCTP_STATE_COOKIE_WAIT */ \ 244 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 245 /* SCTP_STATE_COOKIE_ECHOED */ \ 246 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 247 /* SCTP_STATE_ESTABLISHED */ \ 248 TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown), \ 249 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 250 TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown), \ 251 /* SCTP_STATE_SHUTDOWN_SENT */ \ 252 TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown_ack), \ 253 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 254 TYPE_SCTP_FUNC(sctp_sf_do_9_2_shut_ctsn), \ 255 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 256 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 257 } /* TYPE_SCTP_SHUTDOWN */ 258 259 #define TYPE_SCTP_SHUTDOWN_ACK { \ 260 /* SCTP_STATE_CLOSED */ \ 261 TYPE_SCTP_FUNC(sctp_sf_ootb), \ 262 /* SCTP_STATE_COOKIE_WAIT */ \ 263 TYPE_SCTP_FUNC(sctp_sf_do_8_5_1_E_sa), \ 264 /* SCTP_STATE_COOKIE_ECHOED */ \ 265 TYPE_SCTP_FUNC(sctp_sf_do_8_5_1_E_sa), \ 266 /* SCTP_STATE_ESTABLISHED */ \ 267 TYPE_SCTP_FUNC(sctp_sf_violation), \ 268 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 269 TYPE_SCTP_FUNC(sctp_sf_violation), \ 270 /* SCTP_STATE_SHUTDOWN_SENT */ \ 271 TYPE_SCTP_FUNC(sctp_sf_do_9_2_final), \ 272 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 273 TYPE_SCTP_FUNC(sctp_sf_violation), \ 274 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 275 TYPE_SCTP_FUNC(sctp_sf_do_9_2_final), \ 276 } /* TYPE_SCTP_SHUTDOWN_ACK */ 277 278 #define TYPE_SCTP_ERROR { \ 279 /* SCTP_STATE_CLOSED */ \ 280 TYPE_SCTP_FUNC(sctp_sf_ootb), \ 281 /* SCTP_STATE_COOKIE_WAIT */ \ 282 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 283 /* SCTP_STATE_COOKIE_ECHOED */ \ 284 TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_err), \ 285 /* SCTP_STATE_ESTABLISHED */ \ 286 TYPE_SCTP_FUNC(sctp_sf_operr_notify), \ 287 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 288 TYPE_SCTP_FUNC(sctp_sf_operr_notify), \ 289 /* SCTP_STATE_SHUTDOWN_SENT */ \ 290 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 291 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 292 TYPE_SCTP_FUNC(sctp_sf_operr_notify), \ 293 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 294 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 295 } /* TYPE_SCTP_ERROR */ 296 297 #define TYPE_SCTP_COOKIE_ECHO { \ 298 /* SCTP_STATE_CLOSED */ \ 299 TYPE_SCTP_FUNC(sctp_sf_do_5_1D_ce), \ 300 /* SCTP_STATE_COOKIE_WAIT */ \ 301 TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \ 302 /* SCTP_STATE_COOKIE_ECHOED */ \ 303 TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \ 304 /* SCTP_STATE_ESTABLISHED */ \ 305 TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \ 306 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 307 TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \ 308 /* SCTP_STATE_SHUTDOWN_SENT */ \ 309 TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \ 310 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 311 TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \ 312 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 313 TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \ 314 } /* TYPE_SCTP_COOKIE_ECHO */ 315 316 #define TYPE_SCTP_COOKIE_ACK { \ 317 /* SCTP_STATE_CLOSED */ \ 318 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 319 /* SCTP_STATE_COOKIE_WAIT */ \ 320 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 321 /* SCTP_STATE_COOKIE_ECHOED */ \ 322 TYPE_SCTP_FUNC(sctp_sf_do_5_1E_ca), \ 323 /* SCTP_STATE_ESTABLISHED */ \ 324 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 325 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 326 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 327 /* SCTP_STATE_SHUTDOWN_SENT */ \ 328 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 329 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 330 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 331 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 332 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 333 } /* TYPE_SCTP_COOKIE_ACK */ 334 335 #define TYPE_SCTP_ECN_ECNE { \ 336 /* SCTP_STATE_CLOSED */ \ 337 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 338 /* SCTP_STATE_COOKIE_WAIT */ \ 339 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 340 /* SCTP_STATE_COOKIE_ECHOED */ \ 341 TYPE_SCTP_FUNC(sctp_sf_do_ecne), \ 342 /* SCTP_STATE_ESTABLISHED */ \ 343 TYPE_SCTP_FUNC(sctp_sf_do_ecne), \ 344 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 345 TYPE_SCTP_FUNC(sctp_sf_do_ecne), \ 346 /* SCTP_STATE_SHUTDOWN_SENT */ \ 347 TYPE_SCTP_FUNC(sctp_sf_do_ecne), \ 348 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 349 TYPE_SCTP_FUNC(sctp_sf_do_ecne), \ 350 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 351 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 352 } /* TYPE_SCTP_ECN_ECNE */ 353 354 #define TYPE_SCTP_ECN_CWR { \ 355 /* SCTP_STATE_CLOSED */ \ 356 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 357 /* SCTP_STATE_COOKIE_WAIT */ \ 358 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 359 /* SCTP_STATE_COOKIE_ECHOED */ \ 360 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 361 /* SCTP_STATE_ESTABLISHED */ \ 362 TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \ 363 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 364 TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \ 365 /* SCTP_STATE_SHUTDOWN_SENT */ \ 366 TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \ 367 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 368 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 369 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 370 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 371 } /* TYPE_SCTP_ECN_CWR */ 372 373 #define TYPE_SCTP_SHUTDOWN_COMPLETE { \ 374 /* SCTP_STATE_CLOSED */ \ 375 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 376 /* SCTP_STATE_COOKIE_WAIT */ \ 377 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 378 /* SCTP_STATE_COOKIE_ECHOED */ \ 379 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 380 /* SCTP_STATE_ESTABLISHED */ \ 381 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 382 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 383 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 384 /* SCTP_STATE_SHUTDOWN_SENT */ \ 385 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 386 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 387 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 388 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 389 TYPE_SCTP_FUNC(sctp_sf_do_4_C), \ 390 } /* TYPE_SCTP_SHUTDOWN_COMPLETE */ 391 392 /* The primary index for this table is the chunk type. 393 * The secondary index for this table is the state. 394 * 395 * For base protocol (RFC 2960). 396 */ 397 static const struct sctp_sm_table_entry 398 chunk_event_table[SCTP_NUM_BASE_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = { 399 TYPE_SCTP_DATA, 400 TYPE_SCTP_INIT, 401 TYPE_SCTP_INIT_ACK, 402 TYPE_SCTP_SACK, 403 TYPE_SCTP_HEARTBEAT, 404 TYPE_SCTP_HEARTBEAT_ACK, 405 TYPE_SCTP_ABORT, 406 TYPE_SCTP_SHUTDOWN, 407 TYPE_SCTP_SHUTDOWN_ACK, 408 TYPE_SCTP_ERROR, 409 TYPE_SCTP_COOKIE_ECHO, 410 TYPE_SCTP_COOKIE_ACK, 411 TYPE_SCTP_ECN_ECNE, 412 TYPE_SCTP_ECN_CWR, 413 TYPE_SCTP_SHUTDOWN_COMPLETE, 414 }; /* state_fn_t chunk_event_table[][] */ 415 416 #define TYPE_SCTP_ASCONF { \ 417 /* SCTP_STATE_CLOSED */ \ 418 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 419 /* SCTP_STATE_COOKIE_WAIT */ \ 420 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 421 /* SCTP_STATE_COOKIE_ECHOED */ \ 422 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 423 /* SCTP_STATE_ESTABLISHED */ \ 424 TYPE_SCTP_FUNC(sctp_sf_do_asconf), \ 425 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 426 TYPE_SCTP_FUNC(sctp_sf_do_asconf), \ 427 /* SCTP_STATE_SHUTDOWN_SENT */ \ 428 TYPE_SCTP_FUNC(sctp_sf_do_asconf), \ 429 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 430 TYPE_SCTP_FUNC(sctp_sf_do_asconf), \ 431 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 432 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 433 } /* TYPE_SCTP_ASCONF */ 434 435 #define TYPE_SCTP_ASCONF_ACK { \ 436 /* SCTP_STATE_CLOSED */ \ 437 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 438 /* SCTP_STATE_COOKIE_WAIT */ \ 439 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 440 /* SCTP_STATE_COOKIE_ECHOED */ \ 441 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 442 /* SCTP_STATE_ESTABLISHED */ \ 443 TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \ 444 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 445 TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \ 446 /* SCTP_STATE_SHUTDOWN_SENT */ \ 447 TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \ 448 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 449 TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \ 450 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 451 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 452 } /* TYPE_SCTP_ASCONF_ACK */ 453 454 /* The primary index for this table is the chunk type. 455 * The secondary index for this table is the state. 456 */ 457 static const struct sctp_sm_table_entry 458 addip_chunk_event_table[SCTP_NUM_ADDIP_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = { 459 TYPE_SCTP_ASCONF, 460 TYPE_SCTP_ASCONF_ACK, 461 }; /*state_fn_t addip_chunk_event_table[][] */ 462 463 #define TYPE_SCTP_FWD_TSN { \ 464 /* SCTP_STATE_CLOSED */ \ 465 TYPE_SCTP_FUNC(sctp_sf_ootb), \ 466 /* SCTP_STATE_COOKIE_WAIT */ \ 467 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 468 /* SCTP_STATE_COOKIE_ECHOED */ \ 469 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 470 /* SCTP_STATE_ESTABLISHED */ \ 471 TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn), \ 472 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 473 TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn), \ 474 /* SCTP_STATE_SHUTDOWN_SENT */ \ 475 TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn_fast), \ 476 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 477 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 478 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 479 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 480 } /* TYPE_SCTP_FWD_TSN */ 481 482 /* The primary index for this table is the chunk type. 483 * The secondary index for this table is the state. 484 */ 485 static const struct sctp_sm_table_entry 486 prsctp_chunk_event_table[SCTP_NUM_PRSCTP_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = { 487 TYPE_SCTP_FWD_TSN, 488 }; /*state_fn_t prsctp_chunk_event_table[][] */ 489 490 #define TYPE_SCTP_RECONF { \ 491 /* SCTP_STATE_CLOSED */ \ 492 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 493 /* SCTP_STATE_COOKIE_WAIT */ \ 494 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 495 /* SCTP_STATE_COOKIE_ECHOED */ \ 496 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 497 /* SCTP_STATE_ESTABLISHED */ \ 498 TYPE_SCTP_FUNC(sctp_sf_do_reconf), \ 499 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 500 TYPE_SCTP_FUNC(sctp_sf_do_reconf), \ 501 /* SCTP_STATE_SHUTDOWN_SENT */ \ 502 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 503 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 504 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 505 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 506 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 507 } /* TYPE_SCTP_RECONF */ 508 509 /* The primary index for this table is the chunk type. 510 * The secondary index for this table is the state. 511 */ 512 static const struct sctp_sm_table_entry 513 reconf_chunk_event_table[SCTP_NUM_RECONF_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = { 514 TYPE_SCTP_RECONF, 515 }; /*state_fn_t reconf_chunk_event_table[][] */ 516 517 #define TYPE_SCTP_AUTH { \ 518 /* SCTP_STATE_CLOSED */ \ 519 TYPE_SCTP_FUNC(sctp_sf_ootb), \ 520 /* SCTP_STATE_COOKIE_WAIT */ \ 521 TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \ 522 /* SCTP_STATE_COOKIE_ECHOED */ \ 523 TYPE_SCTP_FUNC(sctp_sf_eat_auth), \ 524 /* SCTP_STATE_ESTABLISHED */ \ 525 TYPE_SCTP_FUNC(sctp_sf_eat_auth), \ 526 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 527 TYPE_SCTP_FUNC(sctp_sf_eat_auth), \ 528 /* SCTP_STATE_SHUTDOWN_SENT */ \ 529 TYPE_SCTP_FUNC(sctp_sf_eat_auth), \ 530 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 531 TYPE_SCTP_FUNC(sctp_sf_eat_auth), \ 532 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 533 TYPE_SCTP_FUNC(sctp_sf_eat_auth), \ 534 } /* TYPE_SCTP_AUTH */ 535 536 /* The primary index for this table is the chunk type. 537 * The secondary index for this table is the state. 538 */ 539 static const struct sctp_sm_table_entry 540 auth_chunk_event_table[SCTP_NUM_AUTH_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = { 541 TYPE_SCTP_AUTH, 542 }; /*state_fn_t auth_chunk_event_table[][] */ 543 544 static const struct sctp_sm_table_entry 545 chunk_event_table_unknown[SCTP_STATE_NUM_STATES] = { 546 /* SCTP_STATE_CLOSED */ 547 TYPE_SCTP_FUNC(sctp_sf_ootb), 548 /* SCTP_STATE_COOKIE_WAIT */ 549 TYPE_SCTP_FUNC(sctp_sf_unk_chunk), 550 /* SCTP_STATE_COOKIE_ECHOED */ 551 TYPE_SCTP_FUNC(sctp_sf_unk_chunk), 552 /* SCTP_STATE_ESTABLISHED */ 553 TYPE_SCTP_FUNC(sctp_sf_unk_chunk), 554 /* SCTP_STATE_SHUTDOWN_PENDING */ 555 TYPE_SCTP_FUNC(sctp_sf_unk_chunk), 556 /* SCTP_STATE_SHUTDOWN_SENT */ 557 TYPE_SCTP_FUNC(sctp_sf_unk_chunk), 558 /* SCTP_STATE_SHUTDOWN_RECEIVED */ 559 TYPE_SCTP_FUNC(sctp_sf_unk_chunk), 560 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ 561 TYPE_SCTP_FUNC(sctp_sf_unk_chunk), 562 }; /* chunk unknown */ 563 564 565 #define TYPE_SCTP_PRIMITIVE_ASSOCIATE { \ 566 /* SCTP_STATE_CLOSED */ \ 567 TYPE_SCTP_FUNC(sctp_sf_do_prm_asoc), \ 568 /* SCTP_STATE_COOKIE_WAIT */ \ 569 TYPE_SCTP_FUNC(sctp_sf_not_impl), \ 570 /* SCTP_STATE_COOKIE_ECHOED */ \ 571 TYPE_SCTP_FUNC(sctp_sf_not_impl), \ 572 /* SCTP_STATE_ESTABLISHED */ \ 573 TYPE_SCTP_FUNC(sctp_sf_not_impl), \ 574 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 575 TYPE_SCTP_FUNC(sctp_sf_not_impl), \ 576 /* SCTP_STATE_SHUTDOWN_SENT */ \ 577 TYPE_SCTP_FUNC(sctp_sf_not_impl), \ 578 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 579 TYPE_SCTP_FUNC(sctp_sf_not_impl), \ 580 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 581 TYPE_SCTP_FUNC(sctp_sf_not_impl), \ 582 } /* TYPE_SCTP_PRIMITIVE_ASSOCIATE */ 583 584 #define TYPE_SCTP_PRIMITIVE_SHUTDOWN { \ 585 /* SCTP_STATE_CLOSED */ \ 586 TYPE_SCTP_FUNC(sctp_sf_error_closed), \ 587 /* SCTP_STATE_COOKIE_WAIT */ \ 588 TYPE_SCTP_FUNC(sctp_sf_cookie_wait_prm_shutdown), \ 589 /* SCTP_STATE_COOKIE_ECHOED */ \ 590 TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_prm_shutdown),\ 591 /* SCTP_STATE_ESTABLISHED */ \ 592 TYPE_SCTP_FUNC(sctp_sf_do_9_2_prm_shutdown), \ 593 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 594 TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \ 595 /* SCTP_STATE_SHUTDOWN_SENT */ \ 596 TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \ 597 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 598 TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \ 599 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 600 TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \ 601 } /* TYPE_SCTP_PRIMITIVE_SHUTDOWN */ 602 603 #define TYPE_SCTP_PRIMITIVE_ABORT { \ 604 /* SCTP_STATE_CLOSED */ \ 605 TYPE_SCTP_FUNC(sctp_sf_error_closed), \ 606 /* SCTP_STATE_COOKIE_WAIT */ \ 607 TYPE_SCTP_FUNC(sctp_sf_cookie_wait_prm_abort), \ 608 /* SCTP_STATE_COOKIE_ECHOED */ \ 609 TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_prm_abort), \ 610 /* SCTP_STATE_ESTABLISHED */ \ 611 TYPE_SCTP_FUNC(sctp_sf_do_9_1_prm_abort), \ 612 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 613 TYPE_SCTP_FUNC(sctp_sf_shutdown_pending_prm_abort), \ 614 /* SCTP_STATE_SHUTDOWN_SENT */ \ 615 TYPE_SCTP_FUNC(sctp_sf_shutdown_sent_prm_abort), \ 616 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 617 TYPE_SCTP_FUNC(sctp_sf_do_9_1_prm_abort), \ 618 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 619 TYPE_SCTP_FUNC(sctp_sf_shutdown_ack_sent_prm_abort), \ 620 } /* TYPE_SCTP_PRIMITIVE_ABORT */ 621 622 #define TYPE_SCTP_PRIMITIVE_SEND { \ 623 /* SCTP_STATE_CLOSED */ \ 624 TYPE_SCTP_FUNC(sctp_sf_error_closed), \ 625 /* SCTP_STATE_COOKIE_WAIT */ \ 626 TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \ 627 /* SCTP_STATE_COOKIE_ECHOED */ \ 628 TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \ 629 /* SCTP_STATE_ESTABLISHED */ \ 630 TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \ 631 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 632 TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \ 633 /* SCTP_STATE_SHUTDOWN_SENT */ \ 634 TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \ 635 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 636 TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \ 637 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 638 TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \ 639 } /* TYPE_SCTP_PRIMITIVE_SEND */ 640 641 #define TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT { \ 642 /* SCTP_STATE_CLOSED */ \ 643 TYPE_SCTP_FUNC(sctp_sf_error_closed), \ 644 /* SCTP_STATE_COOKIE_WAIT */ \ 645 TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \ 646 /* SCTP_STATE_COOKIE_ECHOED */ \ 647 TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \ 648 /* SCTP_STATE_ESTABLISHED */ \ 649 TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \ 650 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 651 TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \ 652 /* SCTP_STATE_SHUTDOWN_SENT */ \ 653 TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \ 654 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 655 TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \ 656 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 657 TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \ 658 } /* TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT */ 659 660 #define TYPE_SCTP_PRIMITIVE_ASCONF { \ 661 /* SCTP_STATE_CLOSED */ \ 662 TYPE_SCTP_FUNC(sctp_sf_error_closed), \ 663 /* SCTP_STATE_COOKIE_WAIT */ \ 664 TYPE_SCTP_FUNC(sctp_sf_error_closed), \ 665 /* SCTP_STATE_COOKIE_ECHOED */ \ 666 TYPE_SCTP_FUNC(sctp_sf_error_closed), \ 667 /* SCTP_STATE_ESTABLISHED */ \ 668 TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \ 669 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 670 TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \ 671 /* SCTP_STATE_SHUTDOWN_SENT */ \ 672 TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \ 673 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 674 TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \ 675 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 676 TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \ 677 } /* TYPE_SCTP_PRIMITIVE_ASCONF */ 678 679 #define TYPE_SCTP_PRIMITIVE_RECONF { \ 680 /* SCTP_STATE_CLOSED */ \ 681 TYPE_SCTP_FUNC(sctp_sf_error_closed), \ 682 /* SCTP_STATE_COOKIE_WAIT */ \ 683 TYPE_SCTP_FUNC(sctp_sf_error_closed), \ 684 /* SCTP_STATE_COOKIE_ECHOED */ \ 685 TYPE_SCTP_FUNC(sctp_sf_error_closed), \ 686 /* SCTP_STATE_ESTABLISHED */ \ 687 TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \ 688 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 689 TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \ 690 /* SCTP_STATE_SHUTDOWN_SENT */ \ 691 TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \ 692 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 693 TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \ 694 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 695 TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \ 696 } /* TYPE_SCTP_PRIMITIVE_RECONF */ 697 698 /* The primary index for this table is the primitive type. 699 * The secondary index for this table is the state. 700 */ 701 static const struct sctp_sm_table_entry 702 primitive_event_table[SCTP_NUM_PRIMITIVE_TYPES][SCTP_STATE_NUM_STATES] = { 703 TYPE_SCTP_PRIMITIVE_ASSOCIATE, 704 TYPE_SCTP_PRIMITIVE_SHUTDOWN, 705 TYPE_SCTP_PRIMITIVE_ABORT, 706 TYPE_SCTP_PRIMITIVE_SEND, 707 TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT, 708 TYPE_SCTP_PRIMITIVE_ASCONF, 709 TYPE_SCTP_PRIMITIVE_RECONF, 710 }; 711 712 #define TYPE_SCTP_OTHER_NO_PENDING_TSN { \ 713 /* SCTP_STATE_CLOSED */ \ 714 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \ 715 /* SCTP_STATE_COOKIE_WAIT */ \ 716 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \ 717 /* SCTP_STATE_COOKIE_ECHOED */ \ 718 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \ 719 /* SCTP_STATE_ESTABLISHED */ \ 720 TYPE_SCTP_FUNC(sctp_sf_do_no_pending_tsn), \ 721 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 722 TYPE_SCTP_FUNC(sctp_sf_do_9_2_start_shutdown), \ 723 /* SCTP_STATE_SHUTDOWN_SENT */ \ 724 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \ 725 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 726 TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown_ack), \ 727 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 728 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \ 729 } 730 731 #define TYPE_SCTP_OTHER_ICMP_PROTO_UNREACH { \ 732 /* SCTP_STATE_CLOSED */ \ 733 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \ 734 /* SCTP_STATE_COOKIE_WAIT */ \ 735 TYPE_SCTP_FUNC(sctp_sf_cookie_wait_icmp_abort), \ 736 /* SCTP_STATE_COOKIE_ECHOED */ \ 737 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \ 738 /* SCTP_STATE_ESTABLISHED */ \ 739 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \ 740 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 741 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \ 742 /* SCTP_STATE_SHUTDOWN_SENT */ \ 743 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \ 744 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 745 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \ 746 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 747 TYPE_SCTP_FUNC(sctp_sf_ignore_other), \ 748 } 749 750 static const struct sctp_sm_table_entry 751 other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STATES] = { 752 TYPE_SCTP_OTHER_NO_PENDING_TSN, 753 TYPE_SCTP_OTHER_ICMP_PROTO_UNREACH, 754 }; 755 756 #define TYPE_SCTP_EVENT_TIMEOUT_NONE { \ 757 /* SCTP_STATE_CLOSED */ \ 758 TYPE_SCTP_FUNC(sctp_sf_bug), \ 759 /* SCTP_STATE_COOKIE_WAIT */ \ 760 TYPE_SCTP_FUNC(sctp_sf_bug), \ 761 /* SCTP_STATE_COOKIE_ECHOED */ \ 762 TYPE_SCTP_FUNC(sctp_sf_bug), \ 763 /* SCTP_STATE_ESTABLISHED */ \ 764 TYPE_SCTP_FUNC(sctp_sf_bug), \ 765 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 766 TYPE_SCTP_FUNC(sctp_sf_bug), \ 767 /* SCTP_STATE_SHUTDOWN_SENT */ \ 768 TYPE_SCTP_FUNC(sctp_sf_bug), \ 769 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 770 TYPE_SCTP_FUNC(sctp_sf_bug), \ 771 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 772 TYPE_SCTP_FUNC(sctp_sf_bug), \ 773 } 774 775 #define TYPE_SCTP_EVENT_TIMEOUT_T1_COOKIE { \ 776 /* SCTP_STATE_CLOSED */ \ 777 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 778 /* SCTP_STATE_COOKIE_WAIT */ \ 779 TYPE_SCTP_FUNC(sctp_sf_bug), \ 780 /* SCTP_STATE_COOKIE_ECHOED */ \ 781 TYPE_SCTP_FUNC(sctp_sf_t1_cookie_timer_expire), \ 782 /* SCTP_STATE_ESTABLISHED */ \ 783 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 784 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 785 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 786 /* SCTP_STATE_SHUTDOWN_SENT */ \ 787 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 788 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 789 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 790 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 791 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 792 } 793 794 #define TYPE_SCTP_EVENT_TIMEOUT_T1_INIT { \ 795 /* SCTP_STATE_CLOSED */ \ 796 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 797 /* SCTP_STATE_COOKIE_WAIT */ \ 798 TYPE_SCTP_FUNC(sctp_sf_t1_init_timer_expire), \ 799 /* SCTP_STATE_COOKIE_ECHOED */ \ 800 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 801 /* SCTP_STATE_ESTABLISHED */ \ 802 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 803 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 804 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 805 /* SCTP_STATE_SHUTDOWN_SENT */ \ 806 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 807 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 808 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 809 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 810 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 811 } 812 813 #define TYPE_SCTP_EVENT_TIMEOUT_T2_SHUTDOWN { \ 814 /* SCTP_STATE_CLOSED */ \ 815 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 816 /* SCTP_STATE_COOKIE_WAIT */ \ 817 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 818 /* SCTP_STATE_COOKIE_ECHOED */ \ 819 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 820 /* SCTP_STATE_ESTABLISHED */ \ 821 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 822 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 823 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 824 /* SCTP_STATE_SHUTDOWN_SENT */ \ 825 TYPE_SCTP_FUNC(sctp_sf_t2_timer_expire), \ 826 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 827 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 828 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 829 TYPE_SCTP_FUNC(sctp_sf_t2_timer_expire), \ 830 } 831 832 #define TYPE_SCTP_EVENT_TIMEOUT_T3_RTX { \ 833 /* SCTP_STATE_CLOSED */ \ 834 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 835 /* SCTP_STATE_COOKIE_WAIT */ \ 836 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 837 /* SCTP_STATE_COOKIE_ECHOED */ \ 838 TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \ 839 /* SCTP_STATE_ESTABLISHED */ \ 840 TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \ 841 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 842 TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \ 843 /* SCTP_STATE_SHUTDOWN_SENT */ \ 844 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 845 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 846 TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \ 847 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 848 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 849 } 850 851 #define TYPE_SCTP_EVENT_TIMEOUT_T4_RTO { \ 852 /* SCTP_STATE_CLOSED */ \ 853 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 854 /* SCTP_STATE_COOKIE_WAIT */ \ 855 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 856 /* SCTP_STATE_COOKIE_ECHOED */ \ 857 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 858 /* SCTP_STATE_ESTABLISHED */ \ 859 TYPE_SCTP_FUNC(sctp_sf_t4_timer_expire), \ 860 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 861 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 862 /* SCTP_STATE_SHUTDOWN_SENT */ \ 863 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 864 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 865 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 866 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 867 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 868 } 869 870 #define TYPE_SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD { \ 871 /* SCTP_STATE_CLOSED */ \ 872 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 873 /* SCTP_STATE_COOKIE_WAIT */ \ 874 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 875 /* SCTP_STATE_COOKIE_ECHOED */ \ 876 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 877 /* SCTP_STATE_ESTABLISHED */ \ 878 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 879 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 880 TYPE_SCTP_FUNC(sctp_sf_t5_timer_expire), \ 881 /* SCTP_STATE_SHUTDOWN_SENT */ \ 882 TYPE_SCTP_FUNC(sctp_sf_t5_timer_expire), \ 883 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 884 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 885 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 886 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 887 } 888 889 #define TYPE_SCTP_EVENT_TIMEOUT_HEARTBEAT { \ 890 /* SCTP_STATE_CLOSED */ \ 891 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 892 /* SCTP_STATE_COOKIE_WAIT */ \ 893 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 894 /* SCTP_STATE_COOKIE_ECHOED */ \ 895 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 896 /* SCTP_STATE_ESTABLISHED */ \ 897 TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \ 898 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 899 TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \ 900 /* SCTP_STATE_SHUTDOWN_SENT */ \ 901 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 902 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 903 TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \ 904 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 905 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 906 } 907 908 #define TYPE_SCTP_EVENT_TIMEOUT_SACK { \ 909 /* SCTP_STATE_CLOSED */ \ 910 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 911 /* SCTP_STATE_COOKIE_WAIT */ \ 912 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 913 /* SCTP_STATE_COOKIE_ECHOED */ \ 914 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 915 /* SCTP_STATE_ESTABLISHED */ \ 916 TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \ 917 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 918 TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \ 919 /* SCTP_STATE_SHUTDOWN_SENT */ \ 920 TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \ 921 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 922 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 923 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 924 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 925 } 926 927 #define TYPE_SCTP_EVENT_TIMEOUT_AUTOCLOSE { \ 928 /* SCTP_STATE_CLOSED */ \ 929 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 930 /* SCTP_STATE_COOKIE_WAIT */ \ 931 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 932 /* SCTP_STATE_COOKIE_ECHOED */ \ 933 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 934 /* SCTP_STATE_ESTABLISHED */ \ 935 TYPE_SCTP_FUNC(sctp_sf_autoclose_timer_expire), \ 936 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 937 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 938 /* SCTP_STATE_SHUTDOWN_SENT */ \ 939 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 940 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 941 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 942 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 943 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 944 } 945 946 #define TYPE_SCTP_EVENT_TIMEOUT_RECONF { \ 947 /* SCTP_STATE_CLOSED */ \ 948 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 949 /* SCTP_STATE_COOKIE_WAIT */ \ 950 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 951 /* SCTP_STATE_COOKIE_ECHOED */ \ 952 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 953 /* SCTP_STATE_ESTABLISHED */ \ 954 TYPE_SCTP_FUNC(sctp_sf_send_reconf), \ 955 /* SCTP_STATE_SHUTDOWN_PENDING */ \ 956 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 957 /* SCTP_STATE_SHUTDOWN_SENT */ \ 958 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 959 /* SCTP_STATE_SHUTDOWN_RECEIVED */ \ 960 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 961 /* SCTP_STATE_SHUTDOWN_ACK_SENT */ \ 962 TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \ 963 } 964 965 static const struct sctp_sm_table_entry 966 timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][SCTP_STATE_NUM_STATES] = { 967 TYPE_SCTP_EVENT_TIMEOUT_NONE, 968 TYPE_SCTP_EVENT_TIMEOUT_T1_COOKIE, 969 TYPE_SCTP_EVENT_TIMEOUT_T1_INIT, 970 TYPE_SCTP_EVENT_TIMEOUT_T2_SHUTDOWN, 971 TYPE_SCTP_EVENT_TIMEOUT_T3_RTX, 972 TYPE_SCTP_EVENT_TIMEOUT_T4_RTO, 973 TYPE_SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD, 974 TYPE_SCTP_EVENT_TIMEOUT_HEARTBEAT, 975 TYPE_SCTP_EVENT_TIMEOUT_RECONF, 976 TYPE_SCTP_EVENT_TIMEOUT_SACK, 977 TYPE_SCTP_EVENT_TIMEOUT_AUTOCLOSE, 978 }; 979 980 static const struct sctp_sm_table_entry *sctp_chunk_event_lookup( 981 struct net *net, 982 enum sctp_cid cid, 983 enum sctp_state state) 984 { 985 if (state > SCTP_STATE_MAX) 986 return &bug; 987 988 if (cid == SCTP_CID_I_DATA) 989 cid = SCTP_CID_DATA; 990 991 if (cid <= SCTP_CID_BASE_MAX) 992 return &chunk_event_table[cid][state]; 993 994 if (net->sctp.prsctp_enable) { 995 if (cid == SCTP_CID_FWD_TSN || cid == SCTP_CID_I_FWD_TSN) 996 return &prsctp_chunk_event_table[0][state]; 997 } 998 999 if (net->sctp.addip_enable) { 1000 if (cid == SCTP_CID_ASCONF) 1001 return &addip_chunk_event_table[0][state]; 1002 1003 if (cid == SCTP_CID_ASCONF_ACK) 1004 return &addip_chunk_event_table[1][state]; 1005 } 1006 1007 if (net->sctp.reconf_enable) 1008 if (cid == SCTP_CID_RECONF) 1009 return &reconf_chunk_event_table[0][state]; 1010 1011 if (net->sctp.auth_enable) { 1012 if (cid == SCTP_CID_AUTH) 1013 return &auth_chunk_event_table[0][state]; 1014 } 1015 1016 return &chunk_event_table_unknown[state]; 1017 } 1018