1 /*- 2 * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * a) Redistributions of source code must retain the above copyright notice, 8 * this list of conditions and the following disclaimer. 9 * 10 * b) Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the distribution. 13 * 14 * c) Neither the name of Cisco Systems, Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived 16 * from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 20 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 28 * THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 /* $KAME: sctp_constants.h,v 1.17 2005/03/06 16:04:17 itojun Exp $ */ 32 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 35 36 #ifndef __sctp_constants_h__ 37 #define __sctp_constants_h__ 38 39 /* Number of packets to get before sack sent by default */ 40 #define SCTP_DEFAULT_SACK_FREQ 2 41 42 /* Address limit - This variable is calculated 43 * based on an 65535 byte max ip packet. We take out 100 bytes 44 * for the cookie, 40 bytes for a v6 header and 32 45 * bytes for the init structure. A second init structure 46 * for the init-ack and then finally a third one for the 47 * imbedded init. This yeilds 100+40+(3 * 32) = 236 bytes. 48 * This leaves 65299 bytes for addresses. We throw out the 299 bytes. 49 * Now whatever we send in the INIT() we need to allow to get back in the 50 * INIT-ACK plus all the values from INIT and INIT-ACK 51 * listed in the cookie. Plus we need some overhead for 52 * maybe copied parameters in the COOKIE. If we 53 * allow 1080 addresses, and each side has 1080 V6 addresses 54 * that will be 21600 bytes. In the INIT-ACK we will 55 * see the INIT-ACK 21600 + 43200 in the cookie. This leaves 56 * about 500 bytes slack for misc things in the cookie. 57 */ 58 #define SCTP_ADDRESS_LIMIT 1080 59 60 /* We need at least 2k of space for us, inits 61 * larger than that lets abort. 62 */ 63 #define SCTP_LARGEST_INIT_ACCEPTED (65535 - 2048) 64 65 /* Number of addresses where we just skip the counting */ 66 #define SCTP_COUNT_LIMIT 40 67 68 #define SCTP_ZERO_COPY_TICK_DELAY (((100 * hz) + 999) / 1000) 69 #define SCTP_ZERO_COPY_SENDQ_TICK_DELAY (((100 * hz) + 999) / 1000) 70 71 /* Number of ticks to delay before running 72 * iterator on an address change. 73 */ 74 #define SCTP_ADDRESS_TICK_DELAY 2 75 76 #define SCTP_VERSION_STRING "KAME-BSD 1.1" 77 /* #define SCTP_AUDITING_ENABLED 1 used for debug/auditing */ 78 #define SCTP_AUDIT_SIZE 256 79 80 #define SCTP_USE_THREAD_BASED_ITERATOR 1 81 82 #define SCTP_KTRHEAD_NAME "sctp_iterator" 83 #define SCTP_KTHREAD_PAGES 2 84 85 86 /* If you support Multi-VRF how big to 87 * make the initial array of VRF's to. 88 */ 89 #define SCTP_DEFAULT_VRF_SIZE 4 90 91 /* constants for rto calc */ 92 #define sctp_align_safe_nocopy 0 93 #define sctp_align_unsafe_makecopy 1 94 95 /* JRS - Values defined for the HTCP algorithm */ 96 #define ALPHA_BASE (1<<7) /* 1.0 with shift << 7 */ 97 #define BETA_MIN (1<<6) /* 0.5 with shift << 7 */ 98 #define BETA_MAX 102 /* 0.8 with shift << 7 */ 99 100 /* Places that CWND log can happen from */ 101 #define SCTP_CWND_LOG_FROM_FR 1 102 #define SCTP_CWND_LOG_FROM_RTX 2 103 #define SCTP_CWND_LOG_FROM_BRST 3 104 #define SCTP_CWND_LOG_FROM_SS 4 105 #define SCTP_CWND_LOG_FROM_CA 5 106 #define SCTP_CWND_LOG_FROM_SAT 6 107 #define SCTP_BLOCK_LOG_INTO_BLK 7 108 #define SCTP_BLOCK_LOG_OUTOF_BLK 8 109 #define SCTP_BLOCK_LOG_CHECK 9 110 #define SCTP_STR_LOG_FROM_INTO_STRD 10 111 #define SCTP_STR_LOG_FROM_IMMED_DEL 11 112 #define SCTP_STR_LOG_FROM_INSERT_HD 12 113 #define SCTP_STR_LOG_FROM_INSERT_MD 13 114 #define SCTP_STR_LOG_FROM_INSERT_TL 14 115 #define SCTP_STR_LOG_FROM_MARK_TSN 15 116 #define SCTP_STR_LOG_FROM_EXPRS_DEL 16 117 #define SCTP_FR_LOG_BIGGEST_TSNS 17 118 #define SCTP_FR_LOG_STRIKE_TEST 18 119 #define SCTP_FR_LOG_STRIKE_CHUNK 19 120 #define SCTP_FR_T3_TIMEOUT 20 121 #define SCTP_MAP_PREPARE_SLIDE 21 122 #define SCTP_MAP_SLIDE_FROM 22 123 #define SCTP_MAP_SLIDE_RESULT 23 124 #define SCTP_MAP_SLIDE_CLEARED 24 125 #define SCTP_MAP_SLIDE_NONE 25 126 #define SCTP_FR_T3_MARK_TIME 26 127 #define SCTP_FR_T3_MARKED 27 128 #define SCTP_FR_T3_STOPPED 28 129 #define SCTP_FR_MARKED 30 130 #define SCTP_CWND_LOG_NOADV_SS 31 131 #define SCTP_CWND_LOG_NOADV_CA 32 132 #define SCTP_MAX_BURST_APPLIED 33 133 #define SCTP_MAX_IFP_APPLIED 34 134 #define SCTP_MAX_BURST_ERROR_STOP 35 135 #define SCTP_INCREASE_PEER_RWND 36 136 #define SCTP_DECREASE_PEER_RWND 37 137 #define SCTP_SET_PEER_RWND_VIA_SACK 38 138 #define SCTP_LOG_MBCNT_INCREASE 39 139 #define SCTP_LOG_MBCNT_DECREASE 40 140 #define SCTP_LOG_MBCNT_CHKSET 41 141 #define SCTP_LOG_NEW_SACK 42 142 #define SCTP_LOG_TSN_ACKED 43 143 #define SCTP_LOG_TSN_REVOKED 44 144 #define SCTP_LOG_LOCK_TCB 45 145 #define SCTP_LOG_LOCK_INP 46 146 #define SCTP_LOG_LOCK_SOCK 47 147 #define SCTP_LOG_LOCK_SOCKBUF_R 48 148 #define SCTP_LOG_LOCK_SOCKBUF_S 49 149 #define SCTP_LOG_LOCK_CREATE 50 150 #define SCTP_LOG_INITIAL_RTT 51 151 #define SCTP_LOG_RTTVAR 52 152 #define SCTP_LOG_SBALLOC 53 153 #define SCTP_LOG_SBFREE 54 154 #define SCTP_LOG_SBRESULT 55 155 #define SCTP_FR_DUPED 56 156 #define SCTP_FR_MARKED_EARLY 57 157 #define SCTP_FR_CWND_REPORT 58 158 #define SCTP_FR_CWND_REPORT_START 59 159 #define SCTP_FR_CWND_REPORT_STOP 60 160 #define SCTP_CWND_LOG_FROM_SEND 61 161 #define SCTP_CWND_INITIALIZATION 62 162 #define SCTP_CWND_LOG_FROM_T3 63 163 #define SCTP_CWND_LOG_FROM_SACK 64 164 #define SCTP_CWND_LOG_NO_CUMACK 65 165 #define SCTP_CWND_LOG_FROM_RESEND 66 166 #define SCTP_FR_LOG_CHECK_STRIKE 67 167 #define SCTP_SEND_NOW_COMPLETES 68 168 #define SCTP_CWND_LOG_FILL_OUTQ_CALLED 69 169 #define SCTP_CWND_LOG_FILL_OUTQ_FILLS 70 170 #define SCTP_LOG_FREE_SENT 71 171 #define SCTP_NAGLE_APPLIED 72 172 #define SCTP_NAGLE_SKIPPED 73 173 #define SCTP_WAKESND_FROM_SACK 74 174 #define SCTP_WAKESND_FROM_FWDTSN 75 175 #define SCTP_NOWAKE_FROM_SACK 76 176 #define SCTP_CWNDLOG_PRESEND 77 177 #define SCTP_CWNDLOG_ENDSEND 78 178 #define SCTP_AT_END_OF_SACK 79 179 #define SCTP_REASON_FOR_SC 80 180 #define SCTP_BLOCK_LOG_INTO_BLKA 81 181 #define SCTP_ENTER_USER_RECV 82 182 #define SCTP_USER_RECV_SACKS 83 183 #define SCTP_SORECV_BLOCKSA 84 184 #define SCTP_SORECV_BLOCKSB 85 185 #define SCTP_SORECV_DONE 86 186 #define SCTP_SACK_RWND_UPDATE 87 187 #define SCTP_SORECV_ENTER 88 188 #define SCTP_SORECV_ENTERPL 89 189 #define SCTP_MBUF_INPUT 90 190 #define SCTP_MBUF_IALLOC 91 191 #define SCTP_MBUF_IFREE 92 192 #define SCTP_MBUF_ICOPY 93 193 #define SCTP_MBUF_SPLIT 94 194 #define SCTP_SORCV_FREECTL 95 195 #define SCTP_SORCV_DOESCPY 96 196 #define SCTP_SORCV_DOESLCK 97 197 #define SCTP_SORCV_DOESADJ 98 198 #define SCTP_SORCV_BOTWHILE 99 199 #define SCTP_SORCV_PASSBF 100 200 #define SCTP_SORCV_ADJD 101 201 #define SCTP_UNKNOWN_MAX 102 202 #define SCTP_RANDY_STUFF 103 203 #define SCTP_RANDY_STUFF1 104 204 #define SCTP_STRMOUT_LOG_ASSIGN 105 205 #define SCTP_STRMOUT_LOG_SEND 106 206 #define SCTP_FLIGHT_LOG_DOWN_CA 107 207 #define SCTP_FLIGHT_LOG_UP 108 208 #define SCTP_FLIGHT_LOG_DOWN_GAP 109 209 #define SCTP_FLIGHT_LOG_DOWN_RSND 110 210 #define SCTP_FLIGHT_LOG_UP_RSND 111 211 #define SCTP_FLIGHT_LOG_DOWN_RSND_TO 112 212 #define SCTP_FLIGHT_LOG_DOWN_WP 113 213 #define SCTP_FLIGHT_LOG_UP_REVOKE 114 214 #define SCTP_FLIGHT_LOG_DOWN_PDRP 115 215 #define SCTP_FLIGHT_LOG_DOWN_PMTU 116 216 #define SCTP_SACK_LOG_NORMAL 117 217 #define SCTP_SACK_LOG_EXPRESS 118 218 #define SCTP_MAP_TSN_ENTERS 119 219 #define SCTP_THRESHOLD_CLEAR 120 220 #define SCTP_THRESHOLD_INCR 121 221 222 #define SCTP_LOG_MAX_TYPES 122 223 /* 224 * To turn on various logging, you must first enable 'options KTR' and 225 * you might want to bump the entires 'options KTR_ENTRIES=80000'. 226 * To get something to log you define one of the logging defines. 227 * (see LINT). 228 * 229 * This gets the compile in place, but you still need to turn the 230 * logging flag on too in the sysctl (see in sctp.h). 231 */ 232 233 #define SCTP_LOG_EVENT_UNKNOWN 0 234 #define SCTP_LOG_EVENT_CWND 1 235 #define SCTP_LOG_EVENT_BLOCK 2 236 #define SCTP_LOG_EVENT_STRM 3 237 #define SCTP_LOG_EVENT_FR 4 238 #define SCTP_LOG_EVENT_MAP 5 239 #define SCTP_LOG_EVENT_MAXBURST 6 240 #define SCTP_LOG_EVENT_RWND 7 241 #define SCTP_LOG_EVENT_MBCNT 8 242 #define SCTP_LOG_EVENT_SACK 9 243 #define SCTP_LOG_LOCK_EVENT 10 244 #define SCTP_LOG_EVENT_RTT 11 245 #define SCTP_LOG_EVENT_SB 12 246 #define SCTP_LOG_EVENT_NAGLE 13 247 #define SCTP_LOG_EVENT_WAKE 14 248 #define SCTP_LOG_MISC_EVENT 15 249 #define SCTP_LOG_EVENT_CLOSE 16 250 #define SCTP_LOG_EVENT_MBUF 17 251 #define SCTP_LOG_CHUNK_PROC 18 252 #define SCTP_LOG_ERROR_RET 19 253 254 #define SCTP_LOG_MAX_EVENT 20 255 256 #define SCTP_LOCK_UNKNOWN 2 257 258 259 /* number of associations by default for zone allocation */ 260 #define SCTP_MAX_NUM_OF_ASOC 40000 261 /* how many addresses per assoc remote and local */ 262 #define SCTP_SCALE_FOR_ADDR 2 263 264 /* default AUTO_ASCONF mode enable(1)/disable(0) value (sysctl) */ 265 #if defined (__APPLE__) && !defined(SCTP_APPLE_AUTO_ASCONF) 266 #define SCTP_DEFAULT_AUTO_ASCONF 0 267 #else 268 #define SCTP_DEFAULT_AUTO_ASCONF 1 269 #endif 270 271 /* default MOBILITY_BASE mode enable(1)/disable(0) value (sysctl) */ 272 #if defined (__APPLE__) && !defined(SCTP_APPLE_MOBILITY_BASE) 273 #define SCTP_DEFAULT_MOBILITY_BASE 0 274 #else 275 #define SCTP_DEFAULT_MOBILITY_BASE 0 276 #endif 277 278 /* default MOBILITY_FASTHANDOFF mode enable(1)/disable(0) value (sysctl) */ 279 #if defined (__APPLE__) && !defined(SCTP_APPLE_MOBILITY_FASTHANDOFF) 280 #define SCTP_DEFAULT_MOBILITY_FASTHANDOFF 0 281 #else 282 #define SCTP_DEFAULT_MOBILITY_FASTHANDOFF 0 283 #endif 284 285 /* 286 * Theshold for rwnd updates, we have to read (sb_hiwat >> 287 * SCTP_RWND_HIWAT_SHIFT) before we will look to see if we need to send a 288 * window update sack. When we look, we compare the last rwnd we sent vs the 289 * current rwnd. It too must be greater than this value. Using 3 divdes the 290 * hiwat by 8, so for 200k rwnd we need to read 24k. For a 64k rwnd we need 291 * to read 8k. This seems about right.. I hope :-D.. we do set a 292 * min of a MTU on it so if the rwnd is real small we will insist 293 * on a full MTU of 1500 bytes. 294 */ 295 #define SCTP_RWND_HIWAT_SHIFT 3 296 297 /* How much of the rwnd must the 298 * message be taking up to start partial delivery. 299 * We calculate this by shifing the hi_water (recv_win) 300 * left the following .. set to 1, when a message holds 301 * 1/2 the rwnd. If we set it to 2 when a message holds 302 * 1/4 the rwnd...etc.. 303 */ 304 305 #define SCTP_PARTIAL_DELIVERY_SHIFT 1 306 307 /* Minimum number of bytes read by user before we 308 * condsider doing a rwnd update 309 */ 310 #define SCTP_MIN_READ_BEFORE_CONSIDERING 3000 311 312 /* 313 * default HMAC for cookies, etc... use one of the AUTH HMAC id's 314 * SCTP_HMAC is the HMAC_ID to use 315 * SCTP_SIGNATURE_SIZE is the digest length 316 */ 317 #define SCTP_HMAC SCTP_AUTH_HMAC_ID_SHA1 318 #define SCTP_SIGNATURE_SIZE SCTP_AUTH_DIGEST_LEN_SHA1 319 #define SCTP_SIGNATURE_ALOC_SIZE SCTP_SIGNATURE_SIZE 320 321 /* DEFINE HERE WHAT CRC YOU WANT TO USE */ 322 #define SCTP_USECRC_RFC2960 1 323 /* #define SCTP_USECRC_FLETCHER 1 */ 324 /* #define SCTP_USECRC_SSHCRC32 1 */ 325 /* #define SCTP_USECRC_FASTCRC32 1 */ 326 /* #define SCTP_USECRC_CRC32 1 */ 327 /* #define SCTP_USECRC_TCP32 1 */ 328 /* #define SCTP_USECRC_CRC16SMAL 1 */ 329 /* #define SCTP_USECRC_CRC16 1 */ 330 /* #define SCTP_USECRC_MODADLER 1 */ 331 332 #ifndef SCTP_ADLER32_BASE 333 #define SCTP_ADLER32_BASE 65521 334 #endif 335 336 /* 337 * the SCTP protocol signature this includes the version number encoded in 338 * the last 4 bits of the signature. 339 */ 340 #define PROTO_SIGNATURE_A 0x30000000 341 #define SCTP_VERSION_NUMBER 0x3 342 343 #define MAX_TSN 0xffffffff 344 #define MAX_SEQ 0xffff 345 346 /* how many executions every N tick's */ 347 #define SCTP_ITERATOR_MAX_AT_ONCE 20 348 349 /* number of clock ticks between iterator executions */ 350 #define SCTP_ITERATOR_TICKS 1 351 352 /* 353 * option: If you comment out the following you will receive the old behavior 354 * of obeying cwnd for the fast retransmit algorithm. With this defined a FR 355 * happens right away with-out waiting for the flightsize to drop below the 356 * cwnd value (which is reduced by the FR to 1/2 the inflight packets). 357 */ 358 #define SCTP_IGNORE_CWND_ON_FR 1 359 360 /* 361 * Adds implementors guide behavior to only use newest highest update in SACK 362 * gap ack's to figure out if you need to stroke a chunk for FR. 363 */ 364 #define SCTP_NO_FR_UNLESS_SEGMENT_SMALLER 1 365 366 /* default max I can burst out after a fast retransmit */ 367 #define SCTP_DEF_MAX_BURST 4 368 /* IP hdr (20/40) + 12+2+2 (enet) + sctp common 12 */ 369 #define SCTP_FIRST_MBUF_RESV 68 370 /* Packet transmit states in the sent field */ 371 #define SCTP_DATAGRAM_UNSENT 0 372 #define SCTP_DATAGRAM_SENT 1 373 #define SCTP_DATAGRAM_RESEND1 2 /* not used (in code, but may 374 * hit this value) */ 375 #define SCTP_DATAGRAM_RESEND2 3 /* not used (in code, but may 376 * hit this value) */ 377 #define SCTP_DATAGRAM_RESEND 4 378 #define SCTP_DATAGRAM_ACKED 10010 379 #define SCTP_DATAGRAM_INBOUND 10011 380 #define SCTP_READY_TO_TRANSMIT 10012 381 #define SCTP_DATAGRAM_MARKED 20010 382 #define SCTP_FORWARD_TSN_SKIP 30010 383 384 /* chunk output send from locations */ 385 #define SCTP_OUTPUT_FROM_USR_SEND 0 386 #define SCTP_OUTPUT_FROM_T3 1 387 #define SCTP_OUTPUT_FROM_INPUT_ERROR 2 388 #define SCTP_OUTPUT_FROM_CONTROL_PROC 3 389 #define SCTP_OUTPUT_FROM_SACK_TMR 4 390 #define SCTP_OUTPUT_FROM_SHUT_TMR 5 391 #define SCTP_OUTPUT_FROM_HB_TMR 6 392 #define SCTP_OUTPUT_FROM_SHUT_ACK_TMR 7 393 #define SCTP_OUTPUT_FROM_ASCONF_TMR 8 394 #define SCTP_OUTPUT_FROM_STRRST_TMR 9 395 #define SCTP_OUTPUT_FROM_AUTOCLOSE_TMR 10 396 #define SCTP_OUTPUT_FROM_EARLY_FR_TMR 11 397 #define SCTP_OUTPUT_FROM_STRRST_REQ 12 398 #define SCTP_OUTPUT_FROM_USR_RCVD 13 399 #define SCTP_OUTPUT_FROM_COOKIE_ACK 14 400 #define SCTP_OUTPUT_FROM_DRAIN 15 401 #define SCTP_OUTPUT_FROM_CLOSING 16 402 /* SCTP chunk types are moved sctp.h for application (NAT, FW) use */ 403 404 /* align to 32-bit sizes */ 405 #define SCTP_SIZE32(x) ((((x)+3) >> 2) << 2) 406 407 #define IS_SCTP_CONTROL(a) ((a)->chunk_type != SCTP_DATA) 408 #define IS_SCTP_DATA(a) ((a)->chunk_type == SCTP_DATA) 409 410 411 /* SCTP parameter types */ 412 /*************0x0000 series*************/ 413 #define SCTP_HEARTBEAT_INFO 0x0001 414 #define SCTP_IPV4_ADDRESS 0x0005 415 #define SCTP_IPV6_ADDRESS 0x0006 416 #define SCTP_STATE_COOKIE 0x0007 417 #define SCTP_UNRECOG_PARAM 0x0008 418 #define SCTP_COOKIE_PRESERVE 0x0009 419 #define SCTP_HOSTNAME_ADDRESS 0x000b 420 #define SCTP_SUPPORTED_ADDRTYPE 0x000c 421 422 /* draft-ietf-stewart-strreset-xxx */ 423 #define SCTP_STR_RESET_OUT_REQUEST 0x000d 424 #define SCTP_STR_RESET_IN_REQUEST 0x000e 425 #define SCTP_STR_RESET_TSN_REQUEST 0x000f 426 #define SCTP_STR_RESET_RESPONSE 0x0010 427 428 #define SCTP_MAX_RESET_PARAMS 2 429 #define SCTP_STREAM_RESET_TSN_DELTA 0x1000 430 431 /*************0x4000 series*************/ 432 433 /*************0x8000 series*************/ 434 #define SCTP_ECN_CAPABLE 0x8000 435 /* ECN Nonce: draft-ladha-sctp-ecn-nonce */ 436 #define SCTP_ECN_NONCE_SUPPORTED 0x8001 437 /* draft-ietf-tsvwg-auth-xxx */ 438 #define SCTP_RANDOM 0x8002 439 #define SCTP_CHUNK_LIST 0x8003 440 #define SCTP_HMAC_LIST 0x8004 441 /* 442 * draft-ietf-tsvwg-addip-sctp-xx param=0x8008 len=0xNNNN Byte | Byte | Byte 443 * | Byte Byte | Byte ... 444 * 445 * Where each byte is a chunk type extension supported. For example, to support 446 * all chunks one would have (in hex): 447 * 448 * 80 01 00 09 C0 C1 80 81 82 00 00 00 449 * 450 * Has the parameter. C0 = PR-SCTP (RFC3758) C1, 80 = ASCONF (addip draft) 81 451 * = Packet Drop 82 = Stream Reset 83 = Authentication 452 */ 453 #define SCTP_SUPPORTED_CHUNK_EXT 0x8008 454 455 /*************0xC000 series*************/ 456 #define SCTP_PRSCTP_SUPPORTED 0xc000 457 /* draft-ietf-tsvwg-addip-sctp */ 458 #define SCTP_ADD_IP_ADDRESS 0xc001 459 #define SCTP_DEL_IP_ADDRESS 0xc002 460 #define SCTP_ERROR_CAUSE_IND 0xc003 461 #define SCTP_SET_PRIM_ADDR 0xc004 462 #define SCTP_SUCCESS_REPORT 0xc005 463 #define SCTP_ULP_ADAPTATION 0xc006 464 465 /* Notification error codes */ 466 #define SCTP_NOTIFY_DATAGRAM_UNSENT 0x0001 467 #define SCTP_NOTIFY_DATAGRAM_SENT 0x0002 468 #define SCTP_FAILED_THRESHOLD 0x0004 469 #define SCTP_HEARTBEAT_SUCCESS 0x0008 470 #define SCTP_RESPONSE_TO_USER_REQ 0x0010 471 #define SCTP_INTERNAL_ERROR 0x0020 472 #define SCTP_SHUTDOWN_GUARD_EXPIRES 0x0040 473 #define SCTP_RECEIVED_SACK 0x0080 474 #define SCTP_PEER_FAULTY 0x0100 475 #define SCTP_ICMP_REFUSED 0x0200 476 477 /* bits for TOS field */ 478 #define SCTP_ECT0_BIT 0x02 479 #define SCTP_ECT1_BIT 0x01 480 #define SCTP_CE_BITS 0x03 481 482 /* below turns off above */ 483 #define SCTP_FLEXIBLE_ADDRESS 0x20 484 #define SCTP_NO_HEARTBEAT 0x40 485 486 /* mask to get sticky */ 487 #define SCTP_STICKY_OPTIONS_MASK 0x0c 488 489 490 /* 491 * SCTP states for internal state machine XXX (should match "user" values) 492 */ 493 #define SCTP_STATE_EMPTY 0x0000 494 #define SCTP_STATE_INUSE 0x0001 495 #define SCTP_STATE_COOKIE_WAIT 0x0002 496 #define SCTP_STATE_COOKIE_ECHOED 0x0004 497 #define SCTP_STATE_OPEN 0x0008 498 #define SCTP_STATE_SHUTDOWN_SENT 0x0010 499 #define SCTP_STATE_SHUTDOWN_RECEIVED 0x0020 500 #define SCTP_STATE_SHUTDOWN_ACK_SENT 0x0040 501 #define SCTP_STATE_SHUTDOWN_PENDING 0x0080 502 #define SCTP_STATE_CLOSED_SOCKET 0x0100 503 #define SCTP_STATE_ABOUT_TO_BE_FREED 0x0200 504 #define SCTP_STATE_PARTIAL_MSG_LEFT 0x0400 505 #define SCTP_STATE_WAS_ABORTED 0x0800 506 #define SCTP_STATE_MASK 0x007f 507 508 #define SCTP_GET_STATE(asoc) ((asoc)->state & SCTP_STATE_MASK) 509 #define SCTP_SET_STATE(asoc, newstate) ((asoc)->state = ((asoc)->state & ~SCTP_STATE_MASK) | newstate) 510 #define SCTP_CLEAR_SUBSTATE(asoc, substate) ((asoc)->state &= ~substate) 511 #define SCTP_ADD_SUBSTATE(asoc, substate) ((asoc)->state |= substate) 512 513 /* SCTP reachability state for each address */ 514 #define SCTP_ADDR_REACHABLE 0x001 515 #define SCTP_ADDR_NOT_REACHABLE 0x002 516 #define SCTP_ADDR_NOHB 0x004 517 #define SCTP_ADDR_BEING_DELETED 0x008 518 #define SCTP_ADDR_NOT_IN_ASSOC 0x010 519 #define SCTP_ADDR_WAS_PRIMARY 0x020 520 #define SCTP_ADDR_SWITCH_PRIMARY 0x040 521 #define SCTP_ADDR_OUT_OF_SCOPE 0x080 522 #define SCTP_ADDR_DOUBLE_SWITCH 0x100 523 #define SCTP_ADDR_UNCONFIRMED 0x200 524 #define SCTP_ADDR_REQ_PRIMARY 0x400 525 /* JRS 5/13/07 - Added potentially failed state for CMT PF */ 526 #define SCTP_ADDR_PF 0x800 527 #define SCTP_REACHABLE_MASK 0x203 528 529 /* bound address types (e.g. valid address types to allow) */ 530 #define SCTP_BOUND_V6 0x01 531 #define SCTP_BOUND_V4 0x02 532 533 /* 534 * what is the default number of mbufs in a chain I allow before switching to 535 * a cluster 536 */ 537 #define SCTP_DEFAULT_MBUFS_IN_CHAIN 5 538 539 /* How long a cookie lives in milli-seconds */ 540 #define SCTP_DEFAULT_COOKIE_LIFE 60000 541 542 /* resource limit of streams */ 543 #define MAX_SCTP_STREAMS 2048 544 545 /* Maximum the mapping array will grow to (TSN mapping array) */ 546 #define SCTP_MAPPING_ARRAY 512 547 548 /* size of the inital malloc on the mapping array */ 549 #define SCTP_INITIAL_MAPPING_ARRAY 16 550 /* how much we grow the mapping array each call */ 551 #define SCTP_MAPPING_ARRAY_INCR 32 552 553 /* 554 * Here we define the timer types used by the implementation as arguments in 555 * the set/get timer type calls. 556 */ 557 #define SCTP_TIMER_INIT 0 558 #define SCTP_TIMER_RECV 1 559 #define SCTP_TIMER_SEND 2 560 #define SCTP_TIMER_HEARTBEAT 3 561 #define SCTP_TIMER_PMTU 4 562 #define SCTP_TIMER_MAXSHUTDOWN 5 563 #define SCTP_TIMER_SIGNATURE 6 564 /* 565 * number of timer types in the base SCTP structure used in the set/get and 566 * has the base default. 567 */ 568 #define SCTP_NUM_TMRS 7 569 570 /* timer types */ 571 #define SCTP_TIMER_TYPE_NONE 0 572 #define SCTP_TIMER_TYPE_SEND 1 573 #define SCTP_TIMER_TYPE_INIT 2 574 #define SCTP_TIMER_TYPE_RECV 3 575 #define SCTP_TIMER_TYPE_SHUTDOWN 4 576 #define SCTP_TIMER_TYPE_HEARTBEAT 5 577 #define SCTP_TIMER_TYPE_COOKIE 6 578 #define SCTP_TIMER_TYPE_NEWCOOKIE 7 579 #define SCTP_TIMER_TYPE_PATHMTURAISE 8 580 #define SCTP_TIMER_TYPE_SHUTDOWNACK 9 581 #define SCTP_TIMER_TYPE_ASCONF 10 582 #define SCTP_TIMER_TYPE_SHUTDOWNGUARD 11 583 #define SCTP_TIMER_TYPE_AUTOCLOSE 12 584 #define SCTP_TIMER_TYPE_EVENTWAKE 13 585 #define SCTP_TIMER_TYPE_STRRESET 14 586 #define SCTP_TIMER_TYPE_INPKILL 15 587 #define SCTP_TIMER_TYPE_ITERATOR 16 588 #define SCTP_TIMER_TYPE_EARLYFR 17 589 #define SCTP_TIMER_TYPE_ASOCKILL 18 590 #define SCTP_TIMER_TYPE_ADDR_WQ 19 591 #define SCTP_TIMER_TYPE_ZERO_COPY 20 592 #define SCTP_TIMER_TYPE_ZCOPY_SENDQ 21 593 #define SCTP_TIMER_TYPE_PRIM_DELETED 22 594 /* add new timers here - and increment LAST */ 595 #define SCTP_TIMER_TYPE_LAST 23 596 597 #define SCTP_IS_TIMER_TYPE_VALID(t) (((t) > SCTP_TIMER_TYPE_NONE) && \ 598 ((t) < SCTP_TIMER_TYPE_LAST)) 599 600 601 602 /* 603 * Number of ticks before the soxwakeup() event that is delayed is sent AFTER 604 * the accept() call 605 */ 606 #define SCTP_EVENTWAKEUP_WAIT_TICKS 3000 607 608 /* 609 * Of course we really don't collect stale cookies, being folks of decerning 610 * taste. However we do count them, if we get too many before the association 611 * comes up.. we give up. Below is the constant that dictates when we give it 612 * up...this is a implemenation dependent treatment. In ours we do not ask 613 * for a extension of time, but just retry this many times... 614 */ 615 #define SCTP_MAX_STALE_COOKIES_I_COLLECT 10 616 617 /* max number of TSN's dup'd that I will hold */ 618 #define SCTP_MAX_DUP_TSNS 20 619 620 /* 621 * Here we define the types used when setting the retry amounts. 622 */ 623 /* constants for type of set */ 624 #define SCTP_MAXATTEMPT_INIT 2 625 #define SCTP_MAXATTEMPT_SEND 3 626 627 /* Maximum TSN's we will summarize in a drop report */ 628 #define SCTP_MAX_DROP_REPORT 16 629 630 /* How many drop re-attempts we make on INIT/COOKIE-ECHO */ 631 #define SCTP_RETRY_DROPPED_THRESH 4 632 633 /* 634 * And the max we will keep a history of in the tcb which MUST be lower than 635 * 256. 636 */ 637 #define SCTP_MAX_DROP_SAVE_REPORT 16 638 639 /* 640 * Here we define the default timers and the default number of attemts we 641 * make for each respective side (send/init). 642 */ 643 644 /* 645 * Maxmium number of chunks a single association can have on it. Note that 646 * this is a squishy number since the count can run over this if the user 647 * sends a large message down .. the fragmented chunks don't count until 648 * AFTER the message is on queue.. it would be the next send that blocks 649 * things. This number will get tuned up at boot in the sctp_init and use the 650 * number of clusters as a base. This way high bandwidth environments will 651 * not get impacted by the lower bandwidth sending a bunch of 1 byte chunks 652 */ 653 #define SCTP_ASOC_MAX_CHUNKS_ON_QUEUE 512 654 655 656 /* The conversion from time to ticks and vice versa is done by rounding 657 * upwards. This way we can test in the code the time to be positive and 658 * know that this corresponds to a positive number of ticks. 659 */ 660 #define MSEC_TO_TICKS(x) ((hz == 1000) ? x : ((((x) * hz) + 999) / 1000)) 661 #define TICKS_TO_MSEC(x) ((hz == 1000) ? x : ((((x) * 1000) + (hz - 1)) / hz)) 662 663 #define SEC_TO_TICKS(x) ((x) * hz) 664 #define TICKS_TO_SEC(x) (((x) + (hz - 1)) / hz) 665 666 /* 667 * Basically the minimum amount of time before I do a early FR. Making this 668 * value to low will cause duplicate retransmissions. 669 */ 670 #define SCTP_MINFR_MSEC_TIMER 250 671 /* The floor this value is allowed to fall to when starting a timer. */ 672 #define SCTP_MINFR_MSEC_FLOOR 20 673 674 /* init timer def = 1 sec */ 675 #define SCTP_INIT_SEC 1 676 677 /* send timer def = 1 seconds */ 678 #define SCTP_SEND_SEC 1 679 680 /* recv timer def = 200ms */ 681 #define SCTP_RECV_MSEC 200 682 683 /* 30 seconds + RTO (in ms) */ 684 #define SCTP_HB_DEFAULT_MSEC 30000 685 686 /* Max time I will wait for Shutdown to complete */ 687 #define SCTP_DEF_MAX_SHUTDOWN_SEC 180 688 689 690 /* 691 * This is how long a secret lives, NOT how long a cookie lives how many 692 * ticks the current secret will live. 693 */ 694 #define SCTP_DEFAULT_SECRET_LIFE_SEC 3600 695 696 #define SCTP_RTO_UPPER_BOUND (60000) /* 60 sec in ms */ 697 #define SCTP_RTO_UPPER_BOUND_SEC 60 /* for the init timer */ 698 #define SCTP_RTO_LOWER_BOUND (1000) /* 1 sec in ms */ 699 #define SCTP_RTO_INITIAL (3000) /* 3 sec in ms */ 700 701 702 #define SCTP_INP_KILL_TIMEOUT 20/* number of ms to retry kill of inpcb */ 703 #define SCTP_ASOC_KILL_TIMEOUT 10 /* number of ms to retry kill of inpcb */ 704 705 #define SCTP_DEF_MAX_INIT 8 706 #define SCTP_DEF_MAX_SEND 10 707 #define SCTP_DEF_MAX_PATH_RTX 5 708 709 #define SCTP_DEF_PMTU_RAISE_SEC 600 /* 10 min between raise attempts */ 710 #define SCTP_DEF_PMTU_MIN 600 711 712 713 #define SCTP_MSEC_IN_A_SEC 1000 714 #define SCTP_USEC_IN_A_SEC 1000000 715 #define SCTP_NSEC_IN_A_SEC 1000000000 716 717 #define SCTP_MAX_OUTSTANDING_DG 10000 718 719 /* How many streams I request initally by default */ 720 #define SCTP_OSTREAM_INITIAL 10 721 722 /* 723 * How many smallest_mtu's need to increase before a window update sack is 724 * sent (should be a power of 2). 725 */ 726 #define SCTP_SEG_TO_RWND_UPD 32 727 /* Send window update (incr * this > hiwat). Should be a power of 2 */ 728 #define SCTP_SCALE_OF_RWND_TO_UPD 4 729 #define SCTP_MINIMAL_RWND (4096) /* minimal rwnd */ 730 731 #define SCTP_ADDRMAX 24 732 733 /* SCTP DEBUG Switch parameters */ 734 #define SCTP_DEBUG_TIMER1 0x00000001 735 #define SCTP_DEBUG_TIMER2 0x00000002 /* unused */ 736 #define SCTP_DEBUG_TIMER3 0x00000004 /* unused */ 737 #define SCTP_DEBUG_TIMER4 0x00000008 738 #define SCTP_DEBUG_OUTPUT1 0x00000010 739 #define SCTP_DEBUG_OUTPUT2 0x00000020 740 #define SCTP_DEBUG_OUTPUT3 0x00000040 741 #define SCTP_DEBUG_OUTPUT4 0x00000080 742 #define SCTP_DEBUG_UTIL1 0x00000100 743 #define SCTP_DEBUG_UTIL2 0x00000200 /* unused */ 744 #define SCTP_DEBUG_AUTH1 0x00000400 745 #define SCTP_DEBUG_AUTH2 0x00000800 /* unused */ 746 #define SCTP_DEBUG_INPUT1 0x00001000 747 #define SCTP_DEBUG_INPUT2 0x00002000 748 #define SCTP_DEBUG_INPUT3 0x00004000 749 #define SCTP_DEBUG_INPUT4 0x00008000 /* unused */ 750 #define SCTP_DEBUG_ASCONF1 0x00010000 751 #define SCTP_DEBUG_ASCONF2 0x00020000 752 #define SCTP_DEBUG_OUTPUT5 0x00040000 /* unused */ 753 #define SCTP_DEBUG_XXX 0x00080000 /* unused */ 754 #define SCTP_DEBUG_PCB1 0x00100000 755 #define SCTP_DEBUG_PCB2 0x00200000 /* unused */ 756 #define SCTP_DEBUG_PCB3 0x00400000 757 #define SCTP_DEBUG_PCB4 0x00800000 758 #define SCTP_DEBUG_INDATA1 0x01000000 759 #define SCTP_DEBUG_INDATA2 0x02000000 /* unused */ 760 #define SCTP_DEBUG_INDATA3 0x04000000 /* unused */ 761 #define SCTP_DEBUG_INDATA4 0x08000000 /* unused */ 762 #define SCTP_DEBUG_USRREQ1 0x10000000 /* unused */ 763 #define SCTP_DEBUG_USRREQ2 0x20000000 /* unused */ 764 #define SCTP_DEBUG_PEEL1 0x40000000 765 #define SCTP_DEBUG_XXXXX 0x80000000 /* unused */ 766 #define SCTP_DEBUG_ALL 0x7ff3ffff 767 #define SCTP_DEBUG_NOISY 0x00040000 768 769 /* What sender needs to see to avoid SWS or we consider peers rwnd 0 */ 770 #define SCTP_SWS_SENDER_DEF 1420 771 772 /* 773 * SWS is scaled to the sb_hiwat of the socket. A value of 2 is hiwat/4, 1 774 * would be hiwat/2 etc. 775 */ 776 /* What receiver needs to see in sockbuf or we tell peer its 1 */ 777 #define SCTP_SWS_RECEIVER_DEF 3000 778 779 #define SCTP_INITIAL_CWND 4380 780 781 #define SCTP_DEFAULT_MTU 1500 /* emegency default MTU */ 782 /* amount peer is obligated to have in rwnd or I will abort */ 783 #define SCTP_MIN_RWND 1500 784 785 #define SCTP_WINDOW_MIN 1500 /* smallest rwnd can be */ 786 #define SCTP_WINDOW_MAX 1048576 /* biggest I can grow rwnd to My playing 787 * around suggests a value greater than 64k 788 * does not do much, I guess via the kernel 789 * limitations on the stream/socket. */ 790 791 /* I can handle a 1meg re-assembly */ 792 #define SCTP_DEFAULT_MAXMSGREASM 1048576 793 794 #define SCTP_DEFAULT_MAXSEGMENT 65535 795 796 #define SCTP_CHUNK_BUFFER_SIZE 512 797 #define SCTP_PARAM_BUFFER_SIZE 512 798 799 /* small chunk store for looking at chunk_list in auth */ 800 #define SCTP_SMALL_CHUNK_STORE 260 801 802 #define SCTP_DEFAULT_MINSEGMENT 512 /* MTU size ... if no mtu disc */ 803 #define SCTP_HOW_MANY_SECRETS 2 /* how many secrets I keep */ 804 805 #define SCTP_NUMBER_OF_SECRETS 8 /* or 8 * 4 = 32 octets */ 806 #define SCTP_SECRET_SIZE 32 /* number of octets in a 256 bits */ 807 808 809 /* 810 * SCTP upper layer notifications 811 */ 812 #define SCTP_NOTIFY_ASSOC_UP 1 813 #define SCTP_NOTIFY_ASSOC_DOWN 2 814 #define SCTP_NOTIFY_INTERFACE_DOWN 3 815 #define SCTP_NOTIFY_INTERFACE_UP 4 816 #define SCTP_NOTIFY_DG_FAIL 5 817 #define SCTP_NOTIFY_STRDATA_ERR 6 818 #define SCTP_NOTIFY_ASSOC_ABORTED 7 819 #define SCTP_NOTIFY_PEER_OPENED_STREAM 8 820 #define SCTP_NOTIFY_STREAM_OPENED_OK 9 821 #define SCTP_NOTIFY_ASSOC_RESTART 10 822 #define SCTP_NOTIFY_HB_RESP 11 823 #define SCTP_NOTIFY_ASCONF_SUCCESS 12 824 #define SCTP_NOTIFY_ASCONF_FAILED 13 825 #define SCTP_NOTIFY_PEER_SHUTDOWN 14 826 #define SCTP_NOTIFY_ASCONF_ADD_IP 15 827 #define SCTP_NOTIFY_ASCONF_DELETE_IP 16 828 #define SCTP_NOTIFY_ASCONF_SET_PRIMARY 17 829 #define SCTP_NOTIFY_PARTIAL_DELVIERY_INDICATION 18 830 #define SCTP_NOTIFY_INTERFACE_CONFIRMED 20 831 #define SCTP_NOTIFY_STR_RESET_RECV 21 832 #define SCTP_NOTIFY_STR_RESET_SEND 22 833 #define SCTP_NOTIFY_STR_RESET_FAILED_OUT 23 834 #define SCTP_NOTIFY_STR_RESET_FAILED_IN 24 835 #define SCTP_NOTIFY_AUTH_NEW_KEY 25 836 #define SCTP_NOTIFY_AUTH_KEY_CONFLICT 26 837 #define SCTP_NOTIFY_SPECIAL_SP_FAIL 27 838 #define SCTP_NOTIFY_MAX 27 839 840 /* This is the value for messages that are NOT completely 841 * copied down where we will start to split the message. 842 * So, with our default, we split only if the piece we 843 * want to take will fill up a full MTU (assuming 844 * a 1500 byte MTU). 845 */ 846 #define SCTP_DEFAULT_SPLIT_POINT_MIN 2904 847 848 /* ABORT CODES and other tell-tale location 849 * codes are generated by adding the below 850 * to the instance id. 851 */ 852 853 /* File defines */ 854 #define SCTP_FROM_SCTP_INPUT 0x10000000 855 #define SCTP_FROM_SCTP_PCB 0x20000000 856 #define SCTP_FROM_SCTP_INDATA 0x30000000 857 #define SCTP_FROM_SCTP_TIMER 0x40000000 858 #define SCTP_FROM_SCTP_USRREQ 0x50000000 859 #define SCTP_FROM_SCTPUTIL 0x60000000 860 #define SCTP_FROM_SCTP6_USRREQ 0x70000000 861 #define SCTP_FROM_SCTP_ASCONF 0x80000000 862 #define SCTP_FROM_SCTP_OUTPUT 0x90000000 863 #define SCTP_FROM_SCTP_PEELOFF 0xa0000000 864 #define SCTP_FROM_SCTP_PANDA 0xb0000000 865 #define SCTP_FROM_SCTP_SYSCTL 0xc0000000 866 867 /* Location ID's */ 868 #define SCTP_LOC_1 0x00000001 869 #define SCTP_LOC_2 0x00000002 870 #define SCTP_LOC_3 0x00000003 871 #define SCTP_LOC_4 0x00000004 872 #define SCTP_LOC_5 0x00000005 873 #define SCTP_LOC_6 0x00000006 874 #define SCTP_LOC_7 0x00000007 875 #define SCTP_LOC_8 0x00000008 876 #define SCTP_LOC_9 0x00000009 877 #define SCTP_LOC_10 0x0000000a 878 #define SCTP_LOC_11 0x0000000b 879 #define SCTP_LOC_12 0x0000000c 880 #define SCTP_LOC_13 0x0000000d 881 #define SCTP_LOC_14 0x0000000e 882 #define SCTP_LOC_15 0x0000000f 883 #define SCTP_LOC_16 0x00000010 884 #define SCTP_LOC_17 0x00000011 885 #define SCTP_LOC_18 0x00000012 886 #define SCTP_LOC_19 0x00000013 887 #define SCTP_LOC_20 0x00000014 888 #define SCTP_LOC_21 0x00000015 889 #define SCTP_LOC_22 0x00000016 890 #define SCTP_LOC_23 0x00000017 891 #define SCTP_LOC_24 0x00000018 892 #define SCTP_LOC_25 0x00000019 893 #define SCTP_LOC_26 0x0000001a 894 #define SCTP_LOC_27 0x0000001b 895 #define SCTP_LOC_28 0x0000001c 896 #define SCTP_LOC_29 0x0000001d 897 #define SCTP_LOC_30 0x0000001e 898 #define SCTP_LOC_31 0x0000001f 899 #define SCTP_LOC_32 0x00000020 900 #define SCTP_LOC_33 0x00000021 901 902 903 /* Free assoc codes */ 904 #define SCTP_NORMAL_PROC 0 905 #define SCTP_PCBFREE_NOFORCE 1 906 #define SCTP_PCBFREE_FORCE 2 907 908 /* From codes for adding addresses */ 909 #define SCTP_ADDR_IS_CONFIRMED 8 910 #define SCTP_ADDR_DYNAMIC_ADDED 6 911 #define SCTP_IN_COOKIE_PROC 100 912 #define SCTP_ALLOC_ASOC 1 913 #define SCTP_LOAD_ADDR_2 2 914 #define SCTP_LOAD_ADDR_3 3 915 #define SCTP_LOAD_ADDR_4 4 916 #define SCTP_LOAD_ADDR_5 5 917 918 #define SCTP_DONOT_SETSCOPE 0 919 #define SCTP_DO_SETSCOPE 1 920 921 922 /* This value determines the default for when 923 * we try to add more on the send queue., if 924 * there is room. This prevents us from cycling 925 * into the copy_resume routine to often if 926 * we have not got enough space to add a decent 927 * enough size message. Note that if we have enough 928 * space to complete the message copy we will always 929 * add to the message, no matter what the size. Its 930 * only when we reach the point that we have some left 931 * to add, there is only room for part of it that we 932 * will use this threshold. Its also a sysctl. 933 */ 934 #define SCTP_DEFAULT_ADD_MORE 1452 935 936 #ifndef SCTP_PCBHASHSIZE 937 /* default number of association hash buckets in each endpoint */ 938 #define SCTP_PCBHASHSIZE 256 939 #endif 940 #ifndef SCTP_TCBHASHSIZE 941 #define SCTP_TCBHASHSIZE 1024 942 #endif 943 944 #ifndef SCTP_CHUNKQUEUE_SCALE 945 #define SCTP_CHUNKQUEUE_SCALE 10 946 #endif 947 948 /* clock variance is 1 ms */ 949 #define SCTP_CLOCK_GRANULARITY 1 950 #define IP_HDR_SIZE 40 /* we use the size of a IP6 header here this 951 * detracts a small amount for ipv4 but it 952 * simplifies the ipv6 addition */ 953 954 /* Argument magic number for sctp_inpcb_free() */ 955 956 /* third argument */ 957 #define SCTP_CALLED_DIRECTLY_NOCMPSET 0 958 #define SCTP_CALLED_AFTER_CMPSET_OFCLOSE 1 959 960 /* second argument */ 961 #define SCTP_FREE_SHOULD_USE_ABORT 1 962 #define SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE 0 963 964 #ifndef IPPROTO_SCTP 965 #define IPPROTO_SCTP 132 /* the Official IANA number :-) */ 966 #endif /* !IPPROTO_SCTP */ 967 968 #define SCTP_MAX_DATA_BUNDLING 256 969 #define SCTP_MAX_CONTROL_BUNDLING 20 970 971 /* modular comparison */ 972 /* True if a > b (mod = M) */ 973 #define compare_with_wrap(a, b, M) (((a > b) && ((a - b) < ((M >> 1) + 1))) || \ 974 ((b > a) && ((b - a) > ((M >> 1) + 1)))) 975 976 977 /* Mapping array manipulation routines */ 978 #define SCTP_IS_TSN_PRESENT(arry, gap) ((arry[(gap >> 3)] >> (gap & 0x07)) & 0x01) 979 #define SCTP_SET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] |= (0x01 << ((gap & 0x07)))) 980 #define SCTP_UNSET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] &= ((~(0x01 << ((gap & 0x07)))) & 0xff)) 981 982 983 #define SCTP_RETRAN_DONE -1 984 #define SCTP_RETRAN_EXIT -2 985 986 /* 987 * This value defines the number of vtag block time wait entry's per list 988 * element. Each entry will take 2 4 byte ints (and of course the overhead 989 * of the next pointer as well). Using 15 as an example will yield * ((8 * 990 * 15) + 8) or 128 bytes of overhead for each timewait block that gets 991 * initialized. Increasing it to 31 would yeild 256 bytes per block. 992 */ 993 #define SCTP_NUMBER_IN_VTAG_BLOCK 15 994 /* 995 * If we use the STACK option, we have an array of this size head pointers. 996 * This array is mod'd the with the size to find which bucket and then all 997 * entries must be searched to see if the tag is in timed wait. If so we 998 * reject it. 999 */ 1000 #define SCTP_STACK_VTAG_HASH_SIZE 31 1001 #define SCTP_STACK_VTAG_HASH_SIZE_A 32 1002 1003 1004 /* 1005 * If we use the per-endpoint model than we do not have a hash table of 1006 * entries but instead have a single head pointer and we must crawl through 1007 * the entire list. 1008 */ 1009 1010 /* 1011 * Number of seconds of time wait for a vtag. 1012 */ 1013 #define SCTP_TIME_WAIT 60 1014 1015 /* This time wait is the same as the default cookie life 1016 * since we now enter a tag in every time we send a cookie. 1017 * We want this shorter to avoid vtag depletion. 1018 */ 1019 #define SCTP_TIME_WAIT_SHORT 60 1020 1021 /* The system retains a cache of free chunks such to 1022 * cut down on calls the memory allocation system. There 1023 * is a per association limit of free items and a overall 1024 * system limit. If either one gets hit then the resource 1025 * stops being cached. 1026 */ 1027 1028 #define SCTP_DEF_ASOC_RESC_LIMIT 10 1029 #define SCTP_DEF_SYSTEM_RESC_LIMIT 1000 1030 1031 /*- 1032 * defines for socket lock states. 1033 * Used by __APPLE__ and SCTP_SO_LOCK_TESTING 1034 */ 1035 #define SCTP_SO_LOCKED 1 1036 #define SCTP_SO_NOT_LOCKED 0 1037 1038 1039 #define SCTP_HOLDS_LOCK 1 1040 #define SCTP_NOT_LOCKED 0 1041 1042 /*- 1043 * For address locks, do we hold the lock? 1044 */ 1045 #define SCTP_ADDR_LOCKED 1 1046 #define SCTP_ADDR_NOT_LOCKED 0 1047 1048 #define IN4_ISPRIVATE_ADDRESS(a) \ 1049 ((((uint8_t *)&(a)->s_addr)[0] == 10) || \ 1050 ((((uint8_t *)&(a)->s_addr)[0] == 172) && \ 1051 (((uint8_t *)&(a)->s_addr)[1] >= 16) && \ 1052 (((uint8_t *)&(a)->s_addr)[1] <= 32)) || \ 1053 ((((uint8_t *)&(a)->s_addr)[0] == 192) && \ 1054 (((uint8_t *)&(a)->s_addr)[1] == 168))) 1055 1056 #define IN4_ISLOOPBACK_ADDRESS(a) \ 1057 ((((uint8_t *)&(a)->s_addr)[0] == 127) && \ 1058 (((uint8_t *)&(a)->s_addr)[1] == 0) && \ 1059 (((uint8_t *)&(a)->s_addr)[2] == 0) && \ 1060 (((uint8_t *)&(a)->s_addr)[3] == 1)) 1061 1062 1063 #if defined(_KERNEL) 1064 1065 #define SCTP_GETTIME_TIMEVAL(x) (getmicrouptime(x)) 1066 #define SCTP_GETPTIME_TIMEVAL(x) (microuptime(x)) 1067 /*#if defined(__FreeBSD__) || defined(__APPLE__)*/ 1068 /*#define SCTP_GETTIME_TIMEVAL(x) { \*/ 1069 /* (x)->tv_sec = ticks / 1000; \*/ 1070 /* (x)->tv_usec = (ticks % 1000) * 1000; \*/ 1071 /*}*/ 1072 1073 /*#else*/ 1074 /*#define SCTP_GETTIME_TIMEVAL(x) (microtime(x))*/ 1075 /*#endif __FreeBSD__ */ 1076 1077 #define sctp_sowwakeup(inp, so) \ 1078 do { \ 1079 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1080 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \ 1081 } else { \ 1082 sowwakeup(so); \ 1083 } \ 1084 } while (0) 1085 1086 #define sctp_sowwakeup_locked(inp, so) \ 1087 do { \ 1088 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1089 SOCKBUF_UNLOCK(&((so)->so_snd)); \ 1090 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \ 1091 } else { \ 1092 sowwakeup_locked(so); \ 1093 } \ 1094 } while (0) 1095 1096 #define sctp_sorwakeup(inp, so) \ 1097 do { \ 1098 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1099 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \ 1100 } else { \ 1101 sorwakeup(so); \ 1102 } \ 1103 } while (0) 1104 1105 #define sctp_sorwakeup_locked(inp, so) \ 1106 do { \ 1107 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1108 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \ 1109 SOCKBUF_UNLOCK(&((so)->so_rcv)); \ 1110 } else { \ 1111 sorwakeup_locked(so); \ 1112 } \ 1113 } while (0) 1114 1115 #endif /* _KERNEL */ 1116 #endif 1117