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