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 /* IANA assigned port number for SCTP over UDP encapsulation */ 40 #define SCTP_OVER_UDP_TUNNELING_PORT 9899 41 42 /* Number of packets to get before sack sent by default */ 43 #define SCTP_DEFAULT_SACK_FREQ 2 44 45 /* Address limit - This variable is calculated 46 * based on an 65535 byte max ip packet. We take out 100 bytes 47 * for the cookie, 40 bytes for a v6 header and 32 48 * bytes for the init structure. A second init structure 49 * for the init-ack and then finally a third one for the 50 * imbedded init. This yeilds 100+40+(3 * 32) = 236 bytes. 51 * This leaves 65299 bytes for addresses. We throw out the 299 bytes. 52 * Now whatever we send in the INIT() we need to allow to get back in the 53 * INIT-ACK plus all the values from INIT and INIT-ACK 54 * listed in the cookie. Plus we need some overhead for 55 * maybe copied parameters in the COOKIE. If we 56 * allow 1080 addresses, and each side has 1080 V6 addresses 57 * that will be 21600 bytes. In the INIT-ACK we will 58 * see the INIT-ACK 21600 + 43200 in the cookie. This leaves 59 * about 500 bytes slack for misc things in the cookie. 60 */ 61 #define SCTP_ADDRESS_LIMIT 1080 62 63 /* We need at least 2k of space for us, inits 64 * larger than that lets abort. 65 */ 66 #define SCTP_LARGEST_INIT_ACCEPTED (65535 - 2048) 67 68 /* Number of addresses where we just skip the counting */ 69 #define SCTP_COUNT_LIMIT 40 70 71 #define SCTP_ZERO_COPY_TICK_DELAY (((100 * hz) + 999) / 1000) 72 #define SCTP_ZERO_COPY_SENDQ_TICK_DELAY (((100 * hz) + 999) / 1000) 73 74 /* Number of ticks to delay before running 75 * iterator on an address change. 76 */ 77 #define SCTP_ADDRESS_TICK_DELAY 2 78 79 #define SCTP_VERSION_STRING "KAME-BSD 1.1" 80 /* #define SCTP_AUDITING_ENABLED 1 used for debug/auditing */ 81 #define SCTP_AUDIT_SIZE 256 82 83 #define SCTP_USE_THREAD_BASED_ITERATOR 1 84 85 #define SCTP_KTRHEAD_NAME "sctp_iterator" 86 #define SCTP_KTHREAD_PAGES 2 87 88 89 /* If you support Multi-VRF how big to 90 * make the initial array of VRF's to. 91 */ 92 #define SCTP_DEFAULT_VRF_SIZE 4 93 94 /* constants for rto calc */ 95 #define sctp_align_safe_nocopy 0 96 #define sctp_align_unsafe_makecopy 1 97 98 /* JRS - Values defined for the HTCP algorithm */ 99 #define ALPHA_BASE (1<<7) /* 1.0 with shift << 7 */ 100 #define BETA_MIN (1<<6) /* 0.5 with shift << 7 */ 101 #define BETA_MAX 102 /* 0.8 with shift << 7 */ 102 103 /* Places that CWND log can happen from */ 104 #define SCTP_CWND_LOG_FROM_FR 1 105 #define SCTP_CWND_LOG_FROM_RTX 2 106 #define SCTP_CWND_LOG_FROM_BRST 3 107 #define SCTP_CWND_LOG_FROM_SS 4 108 #define SCTP_CWND_LOG_FROM_CA 5 109 #define SCTP_CWND_LOG_FROM_SAT 6 110 #define SCTP_BLOCK_LOG_INTO_BLK 7 111 #define SCTP_BLOCK_LOG_OUTOF_BLK 8 112 #define SCTP_BLOCK_LOG_CHECK 9 113 #define SCTP_STR_LOG_FROM_INTO_STRD 10 114 #define SCTP_STR_LOG_FROM_IMMED_DEL 11 115 #define SCTP_STR_LOG_FROM_INSERT_HD 12 116 #define SCTP_STR_LOG_FROM_INSERT_MD 13 117 #define SCTP_STR_LOG_FROM_INSERT_TL 14 118 #define SCTP_STR_LOG_FROM_MARK_TSN 15 119 #define SCTP_STR_LOG_FROM_EXPRS_DEL 16 120 #define SCTP_FR_LOG_BIGGEST_TSNS 17 121 #define SCTP_FR_LOG_STRIKE_TEST 18 122 #define SCTP_FR_LOG_STRIKE_CHUNK 19 123 #define SCTP_FR_T3_TIMEOUT 20 124 #define SCTP_MAP_PREPARE_SLIDE 21 125 #define SCTP_MAP_SLIDE_FROM 22 126 #define SCTP_MAP_SLIDE_RESULT 23 127 #define SCTP_MAP_SLIDE_CLEARED 24 128 #define SCTP_MAP_SLIDE_NONE 25 129 #define SCTP_FR_T3_MARK_TIME 26 130 #define SCTP_FR_T3_MARKED 27 131 #define SCTP_FR_T3_STOPPED 28 132 #define SCTP_FR_MARKED 30 133 #define SCTP_CWND_LOG_NOADV_SS 31 134 #define SCTP_CWND_LOG_NOADV_CA 32 135 #define SCTP_MAX_BURST_APPLIED 33 136 #define SCTP_MAX_IFP_APPLIED 34 137 #define SCTP_MAX_BURST_ERROR_STOP 35 138 #define SCTP_INCREASE_PEER_RWND 36 139 #define SCTP_DECREASE_PEER_RWND 37 140 #define SCTP_SET_PEER_RWND_VIA_SACK 38 141 #define SCTP_LOG_MBCNT_INCREASE 39 142 #define SCTP_LOG_MBCNT_DECREASE 40 143 #define SCTP_LOG_MBCNT_CHKSET 41 144 #define SCTP_LOG_NEW_SACK 42 145 #define SCTP_LOG_TSN_ACKED 43 146 #define SCTP_LOG_TSN_REVOKED 44 147 #define SCTP_LOG_LOCK_TCB 45 148 #define SCTP_LOG_LOCK_INP 46 149 #define SCTP_LOG_LOCK_SOCK 47 150 #define SCTP_LOG_LOCK_SOCKBUF_R 48 151 #define SCTP_LOG_LOCK_SOCKBUF_S 49 152 #define SCTP_LOG_LOCK_CREATE 50 153 #define SCTP_LOG_INITIAL_RTT 51 154 #define SCTP_LOG_RTTVAR 52 155 #define SCTP_LOG_SBALLOC 53 156 #define SCTP_LOG_SBFREE 54 157 #define SCTP_LOG_SBRESULT 55 158 #define SCTP_FR_DUPED 56 159 #define SCTP_FR_MARKED_EARLY 57 160 #define SCTP_FR_CWND_REPORT 58 161 #define SCTP_FR_CWND_REPORT_START 59 162 #define SCTP_FR_CWND_REPORT_STOP 60 163 #define SCTP_CWND_LOG_FROM_SEND 61 164 #define SCTP_CWND_INITIALIZATION 62 165 #define SCTP_CWND_LOG_FROM_T3 63 166 #define SCTP_CWND_LOG_FROM_SACK 64 167 #define SCTP_CWND_LOG_NO_CUMACK 65 168 #define SCTP_CWND_LOG_FROM_RESEND 66 169 #define SCTP_FR_LOG_CHECK_STRIKE 67 170 #define SCTP_SEND_NOW_COMPLETES 68 171 #define SCTP_CWND_LOG_FILL_OUTQ_CALLED 69 172 #define SCTP_CWND_LOG_FILL_OUTQ_FILLS 70 173 #define SCTP_LOG_FREE_SENT 71 174 #define SCTP_NAGLE_APPLIED 72 175 #define SCTP_NAGLE_SKIPPED 73 176 #define SCTP_WAKESND_FROM_SACK 74 177 #define SCTP_WAKESND_FROM_FWDTSN 75 178 #define SCTP_NOWAKE_FROM_SACK 76 179 #define SCTP_CWNDLOG_PRESEND 77 180 #define SCTP_CWNDLOG_ENDSEND 78 181 #define SCTP_AT_END_OF_SACK 79 182 #define SCTP_REASON_FOR_SC 80 183 #define SCTP_BLOCK_LOG_INTO_BLKA 81 184 #define SCTP_ENTER_USER_RECV 82 185 #define SCTP_USER_RECV_SACKS 83 186 #define SCTP_SORECV_BLOCKSA 84 187 #define SCTP_SORECV_BLOCKSB 85 188 #define SCTP_SORECV_DONE 86 189 #define SCTP_SACK_RWND_UPDATE 87 190 #define SCTP_SORECV_ENTER 88 191 #define SCTP_SORECV_ENTERPL 89 192 #define SCTP_MBUF_INPUT 90 193 #define SCTP_MBUF_IALLOC 91 194 #define SCTP_MBUF_IFREE 92 195 #define SCTP_MBUF_ICOPY 93 196 #define SCTP_MBUF_SPLIT 94 197 #define SCTP_SORCV_FREECTL 95 198 #define SCTP_SORCV_DOESCPY 96 199 #define SCTP_SORCV_DOESLCK 97 200 #define SCTP_SORCV_DOESADJ 98 201 #define SCTP_SORCV_BOTWHILE 99 202 #define SCTP_SORCV_PASSBF 100 203 #define SCTP_SORCV_ADJD 101 204 #define SCTP_UNKNOWN_MAX 102 205 #define SCTP_RANDY_STUFF 103 206 #define SCTP_RANDY_STUFF1 104 207 #define SCTP_STRMOUT_LOG_ASSIGN 105 208 #define SCTP_STRMOUT_LOG_SEND 106 209 #define SCTP_FLIGHT_LOG_DOWN_CA 107 210 #define SCTP_FLIGHT_LOG_UP 108 211 #define SCTP_FLIGHT_LOG_DOWN_GAP 109 212 #define SCTP_FLIGHT_LOG_DOWN_RSND 110 213 #define SCTP_FLIGHT_LOG_UP_RSND 111 214 #define SCTP_FLIGHT_LOG_DOWN_RSND_TO 112 215 #define SCTP_FLIGHT_LOG_DOWN_WP 113 216 #define SCTP_FLIGHT_LOG_UP_REVOKE 114 217 #define SCTP_FLIGHT_LOG_DOWN_PDRP 115 218 #define SCTP_FLIGHT_LOG_DOWN_PMTU 116 219 #define SCTP_SACK_LOG_NORMAL 117 220 #define SCTP_SACK_LOG_EXPRESS 118 221 #define SCTP_MAP_TSN_ENTERS 119 222 #define SCTP_THRESHOLD_CLEAR 120 223 #define SCTP_THRESHOLD_INCR 121 224 225 #define SCTP_LOG_MAX_TYPES 122 226 /* 227 * To turn on various logging, you must first enable 'options KTR' and 228 * you might want to bump the entires 'options KTR_ENTRIES=80000'. 229 * To get something to log you define one of the logging defines. 230 * (see LINT). 231 * 232 * This gets the compile in place, but you still need to turn the 233 * logging flag on too in the sysctl (see in sctp.h). 234 */ 235 236 #define SCTP_LOG_EVENT_UNKNOWN 0 237 #define SCTP_LOG_EVENT_CWND 1 238 #define SCTP_LOG_EVENT_BLOCK 2 239 #define SCTP_LOG_EVENT_STRM 3 240 #define SCTP_LOG_EVENT_FR 4 241 #define SCTP_LOG_EVENT_MAP 5 242 #define SCTP_LOG_EVENT_MAXBURST 6 243 #define SCTP_LOG_EVENT_RWND 7 244 #define SCTP_LOG_EVENT_MBCNT 8 245 #define SCTP_LOG_EVENT_SACK 9 246 #define SCTP_LOG_LOCK_EVENT 10 247 #define SCTP_LOG_EVENT_RTT 11 248 #define SCTP_LOG_EVENT_SB 12 249 #define SCTP_LOG_EVENT_NAGLE 13 250 #define SCTP_LOG_EVENT_WAKE 14 251 #define SCTP_LOG_MISC_EVENT 15 252 #define SCTP_LOG_EVENT_CLOSE 16 253 #define SCTP_LOG_EVENT_MBUF 17 254 #define SCTP_LOG_CHUNK_PROC 18 255 #define SCTP_LOG_ERROR_RET 19 256 257 #define SCTP_LOG_MAX_EVENT 20 258 259 #define SCTP_LOCK_UNKNOWN 2 260 261 262 /* number of associations by default for zone allocation */ 263 #define SCTP_MAX_NUM_OF_ASOC 40000 264 /* how many addresses per assoc remote and local */ 265 #define SCTP_SCALE_FOR_ADDR 2 266 267 /* default AUTO_ASCONF mode enable(1)/disable(0) value (sysctl) */ 268 #if defined (__APPLE__) && !defined(SCTP_APPLE_AUTO_ASCONF) 269 #define SCTP_DEFAULT_AUTO_ASCONF 0 270 #else 271 #define SCTP_DEFAULT_AUTO_ASCONF 1 272 #endif 273 274 /* default MULTIPLE_ASCONF mode enable(1)/disable(0) value (sysctl) */ 275 #define SCTP_DEFAULT_MULTIPLE_ASCONFS 0 276 277 /* default MOBILITY_BASE mode enable(1)/disable(0) value (sysctl) */ 278 #if defined (__APPLE__) && !defined(SCTP_APPLE_MOBILITY_BASE) 279 #define SCTP_DEFAULT_MOBILITY_BASE 0 280 #else 281 #define SCTP_DEFAULT_MOBILITY_BASE 0 282 #endif 283 284 /* default MOBILITY_FASTHANDOFF mode enable(1)/disable(0) value (sysctl) */ 285 #if defined (__APPLE__) && !defined(SCTP_APPLE_MOBILITY_FASTHANDOFF) 286 #define SCTP_DEFAULT_MOBILITY_FASTHANDOFF 0 287 #else 288 #define SCTP_DEFAULT_MOBILITY_FASTHANDOFF 0 289 #endif 290 291 /* 292 * Theshold for rwnd updates, we have to read (sb_hiwat >> 293 * SCTP_RWND_HIWAT_SHIFT) before we will look to see if we need to send a 294 * window update sack. When we look, we compare the last rwnd we sent vs the 295 * current rwnd. It too must be greater than this value. Using 3 divdes the 296 * hiwat by 8, so for 200k rwnd we need to read 24k. For a 64k rwnd we need 297 * to read 8k. This seems about right.. I hope :-D.. we do set a 298 * min of a MTU on it so if the rwnd is real small we will insist 299 * on a full MTU of 1500 bytes. 300 */ 301 #define SCTP_RWND_HIWAT_SHIFT 3 302 303 /* How much of the rwnd must the 304 * message be taking up to start partial delivery. 305 * We calculate this by shifing the hi_water (recv_win) 306 * left the following .. set to 1, when a message holds 307 * 1/2 the rwnd. If we set it to 2 when a message holds 308 * 1/4 the rwnd...etc.. 309 */ 310 311 #define SCTP_PARTIAL_DELIVERY_SHIFT 1 312 313 /* Minimum number of bytes read by user before we 314 * condsider doing a rwnd update 315 */ 316 #define SCTP_MIN_READ_BEFORE_CONSIDERING 3000 317 318 /* 319 * default HMAC for cookies, etc... use one of the AUTH HMAC id's 320 * SCTP_HMAC is the HMAC_ID to use 321 * SCTP_SIGNATURE_SIZE is the digest length 322 */ 323 #define SCTP_HMAC SCTP_AUTH_HMAC_ID_SHA1 324 #define SCTP_SIGNATURE_SIZE SCTP_AUTH_DIGEST_LEN_SHA1 325 #define SCTP_SIGNATURE_ALOC_SIZE SCTP_SIGNATURE_SIZE 326 327 /* DEFINE HERE WHAT CRC YOU WANT TO USE */ 328 #define SCTP_USECRC_RFC2960 1 329 /* #define SCTP_USECRC_FLETCHER 1 */ 330 /* #define SCTP_USECRC_SSHCRC32 1 */ 331 /* #define SCTP_USECRC_FASTCRC32 1 */ 332 /* #define SCTP_USECRC_CRC32 1 */ 333 /* #define SCTP_USECRC_TCP32 1 */ 334 /* #define SCTP_USECRC_CRC16SMAL 1 */ 335 /* #define SCTP_USECRC_CRC16 1 */ 336 /* #define SCTP_USECRC_MODADLER 1 */ 337 338 #ifndef SCTP_ADLER32_BASE 339 #define SCTP_ADLER32_BASE 65521 340 #endif 341 342 /* 343 * the SCTP protocol signature this includes the version number encoded in 344 * the last 4 bits of the signature. 345 */ 346 #define PROTO_SIGNATURE_A 0x30000000 347 #define SCTP_VERSION_NUMBER 0x3 348 349 #define MAX_TSN 0xffffffff 350 #define MAX_SEQ 0xffff 351 352 /* how many executions every N tick's */ 353 #define SCTP_ITERATOR_MAX_AT_ONCE 20 354 355 /* number of clock ticks between iterator executions */ 356 #define SCTP_ITERATOR_TICKS 1 357 358 /* 359 * option: If you comment out the following you will receive the old behavior 360 * of obeying cwnd for the fast retransmit algorithm. With this defined a FR 361 * happens right away with-out waiting for the flightsize to drop below the 362 * cwnd value (which is reduced by the FR to 1/2 the inflight packets). 363 */ 364 #define SCTP_IGNORE_CWND_ON_FR 1 365 366 /* 367 * Adds implementors guide behavior to only use newest highest update in SACK 368 * gap ack's to figure out if you need to stroke a chunk for FR. 369 */ 370 #define SCTP_NO_FR_UNLESS_SEGMENT_SMALLER 1 371 372 /* default max I can burst out after a fast retransmit */ 373 #define SCTP_DEF_MAX_BURST 4 374 /* IP hdr (20/40) + 12+2+2 (enet) + sctp common 12 */ 375 #define SCTP_FIRST_MBUF_RESV 68 376 /* Packet transmit states in the sent field */ 377 #define SCTP_DATAGRAM_UNSENT 0 378 #define SCTP_DATAGRAM_SENT 1 379 #define SCTP_DATAGRAM_RESEND1 2 /* not used (in code, but may 380 * hit this value) */ 381 #define SCTP_DATAGRAM_RESEND2 3 /* not used (in code, but may 382 * hit this value) */ 383 #define SCTP_DATAGRAM_RESEND 4 384 #define SCTP_DATAGRAM_ACKED 10010 385 #define SCTP_DATAGRAM_MARKED 20010 386 #define SCTP_FORWARD_TSN_SKIP 30010 387 388 /* chunk output send from locations */ 389 #define SCTP_OUTPUT_FROM_USR_SEND 0 390 #define SCTP_OUTPUT_FROM_T3 1 391 #define SCTP_OUTPUT_FROM_INPUT_ERROR 2 392 #define SCTP_OUTPUT_FROM_CONTROL_PROC 3 393 #define SCTP_OUTPUT_FROM_SACK_TMR 4 394 #define SCTP_OUTPUT_FROM_SHUT_TMR 5 395 #define SCTP_OUTPUT_FROM_HB_TMR 6 396 #define SCTP_OUTPUT_FROM_SHUT_ACK_TMR 7 397 #define SCTP_OUTPUT_FROM_ASCONF_TMR 8 398 #define SCTP_OUTPUT_FROM_STRRST_TMR 9 399 #define SCTP_OUTPUT_FROM_AUTOCLOSE_TMR 10 400 #define SCTP_OUTPUT_FROM_EARLY_FR_TMR 11 401 #define SCTP_OUTPUT_FROM_STRRST_REQ 12 402 #define SCTP_OUTPUT_FROM_USR_RCVD 13 403 #define SCTP_OUTPUT_FROM_COOKIE_ACK 14 404 #define SCTP_OUTPUT_FROM_DRAIN 15 405 #define SCTP_OUTPUT_FROM_CLOSING 16 406 /* SCTP chunk types are moved sctp.h for application (NAT, FW) use */ 407 408 /* align to 32-bit sizes */ 409 #define SCTP_SIZE32(x) ((((x)+3) >> 2) << 2) 410 411 #define IS_SCTP_CONTROL(a) ((a)->chunk_type != SCTP_DATA) 412 #define IS_SCTP_DATA(a) ((a)->chunk_type == SCTP_DATA) 413 414 415 /* SCTP parameter types */ 416 /*************0x0000 series*************/ 417 #define SCTP_HEARTBEAT_INFO 0x0001 418 #define SCTP_IPV4_ADDRESS 0x0005 419 #define SCTP_IPV6_ADDRESS 0x0006 420 #define SCTP_STATE_COOKIE 0x0007 421 #define SCTP_UNRECOG_PARAM 0x0008 422 #define SCTP_COOKIE_PRESERVE 0x0009 423 #define SCTP_HOSTNAME_ADDRESS 0x000b 424 #define SCTP_SUPPORTED_ADDRTYPE 0x000c 425 426 /* draft-ietf-stewart-strreset-xxx */ 427 #define SCTP_STR_RESET_OUT_REQUEST 0x000d 428 #define SCTP_STR_RESET_IN_REQUEST 0x000e 429 #define SCTP_STR_RESET_TSN_REQUEST 0x000f 430 #define SCTP_STR_RESET_RESPONSE 0x0010 431 432 #define SCTP_MAX_RESET_PARAMS 2 433 #define SCTP_STREAM_RESET_TSN_DELTA 0x1000 434 435 /*************0x4000 series*************/ 436 437 /*************0x8000 series*************/ 438 #define SCTP_ECN_CAPABLE 0x8000 439 /* ECN Nonce: draft-ladha-sctp-ecn-nonce */ 440 #define SCTP_ECN_NONCE_SUPPORTED 0x8001 441 /* draft-ietf-tsvwg-auth-xxx */ 442 #define SCTP_RANDOM 0x8002 443 #define SCTP_CHUNK_LIST 0x8003 444 #define SCTP_HMAC_LIST 0x8004 445 /* 446 * draft-ietf-tsvwg-addip-sctp-xx param=0x8008 len=0xNNNN Byte | Byte | Byte 447 * | Byte Byte | Byte ... 448 * 449 * Where each byte is a chunk type extension supported. For example, to support 450 * all chunks one would have (in hex): 451 * 452 * 80 01 00 09 C0 C1 80 81 82 00 00 00 453 * 454 * Has the parameter. C0 = PR-SCTP (RFC3758) C1, 80 = ASCONF (addip draft) 81 455 * = Packet Drop 82 = Stream Reset 83 = Authentication 456 */ 457 #define SCTP_SUPPORTED_CHUNK_EXT 0x8008 458 459 /*************0xC000 series*************/ 460 #define SCTP_PRSCTP_SUPPORTED 0xc000 461 /* draft-ietf-tsvwg-addip-sctp */ 462 #define SCTP_ADD_IP_ADDRESS 0xc001 463 #define SCTP_DEL_IP_ADDRESS 0xc002 464 #define SCTP_ERROR_CAUSE_IND 0xc003 465 #define SCTP_SET_PRIM_ADDR 0xc004 466 #define SCTP_SUCCESS_REPORT 0xc005 467 #define SCTP_ULP_ADAPTATION 0xc006 468 469 /* Notification error codes */ 470 #define SCTP_NOTIFY_DATAGRAM_UNSENT 0x0001 471 #define SCTP_NOTIFY_DATAGRAM_SENT 0x0002 472 #define SCTP_FAILED_THRESHOLD 0x0004 473 #define SCTP_HEARTBEAT_SUCCESS 0x0008 474 #define SCTP_RESPONSE_TO_USER_REQ 0x0010 475 #define SCTP_INTERNAL_ERROR 0x0020 476 #define SCTP_SHUTDOWN_GUARD_EXPIRES 0x0040 477 #define SCTP_RECEIVED_SACK 0x0080 478 #define SCTP_PEER_FAULTY 0x0100 479 #define SCTP_ICMP_REFUSED 0x0200 480 481 /* bits for TOS field */ 482 #define SCTP_ECT0_BIT 0x02 483 #define SCTP_ECT1_BIT 0x01 484 #define SCTP_CE_BITS 0x03 485 486 /* below turns off above */ 487 #define SCTP_FLEXIBLE_ADDRESS 0x20 488 #define SCTP_NO_HEARTBEAT 0x40 489 490 /* mask to get sticky */ 491 #define SCTP_STICKY_OPTIONS_MASK 0x0c 492 493 494 /* 495 * SCTP states for internal state machine XXX (should match "user" values) 496 */ 497 #define SCTP_STATE_EMPTY 0x0000 498 #define SCTP_STATE_INUSE 0x0001 499 #define SCTP_STATE_COOKIE_WAIT 0x0002 500 #define SCTP_STATE_COOKIE_ECHOED 0x0004 501 #define SCTP_STATE_OPEN 0x0008 502 #define SCTP_STATE_SHUTDOWN_SENT 0x0010 503 #define SCTP_STATE_SHUTDOWN_RECEIVED 0x0020 504 #define SCTP_STATE_SHUTDOWN_ACK_SENT 0x0040 505 #define SCTP_STATE_SHUTDOWN_PENDING 0x0080 506 #define SCTP_STATE_CLOSED_SOCKET 0x0100 507 #define SCTP_STATE_ABOUT_TO_BE_FREED 0x0200 508 #define SCTP_STATE_PARTIAL_MSG_LEFT 0x0400 509 #define SCTP_STATE_WAS_ABORTED 0x0800 510 #define SCTP_STATE_MASK 0x007f 511 512 #define SCTP_GET_STATE(asoc) ((asoc)->state & SCTP_STATE_MASK) 513 #define SCTP_SET_STATE(asoc, newstate) ((asoc)->state = ((asoc)->state & ~SCTP_STATE_MASK) | newstate) 514 #define SCTP_CLEAR_SUBSTATE(asoc, substate) ((asoc)->state &= ~substate) 515 #define SCTP_ADD_SUBSTATE(asoc, substate) ((asoc)->state |= substate) 516 517 /* SCTP reachability state for each address */ 518 #define SCTP_ADDR_REACHABLE 0x001 519 #define SCTP_ADDR_NOT_REACHABLE 0x002 520 #define SCTP_ADDR_NOHB 0x004 521 #define SCTP_ADDR_BEING_DELETED 0x008 522 #define SCTP_ADDR_NOT_IN_ASSOC 0x010 523 #define SCTP_ADDR_WAS_PRIMARY 0x020 524 #define SCTP_ADDR_SWITCH_PRIMARY 0x040 525 #define SCTP_ADDR_OUT_OF_SCOPE 0x080 526 #define SCTP_ADDR_DOUBLE_SWITCH 0x100 527 #define SCTP_ADDR_UNCONFIRMED 0x200 528 #define SCTP_ADDR_REQ_PRIMARY 0x400 529 /* JRS 5/13/07 - Added potentially failed state for CMT PF */ 530 #define SCTP_ADDR_PF 0x800 531 #define SCTP_REACHABLE_MASK 0x203 532 533 /* bound address types (e.g. valid address types to allow) */ 534 #define SCTP_BOUND_V6 0x01 535 #define SCTP_BOUND_V4 0x02 536 537 /* 538 * what is the default number of mbufs in a chain I allow before switching to 539 * a cluster 540 */ 541 #define SCTP_DEFAULT_MBUFS_IN_CHAIN 5 542 543 /* How long a cookie lives in milli-seconds */ 544 #define SCTP_DEFAULT_COOKIE_LIFE 60000 545 546 /* resource limit of streams */ 547 #define MAX_SCTP_STREAMS 2048 548 549 /* Maximum the mapping array will grow to (TSN mapping array) */ 550 #define SCTP_MAPPING_ARRAY 512 551 552 /* size of the inital malloc on the mapping array */ 553 #define SCTP_INITIAL_MAPPING_ARRAY 16 554 /* how much we grow the mapping array each call */ 555 #define SCTP_MAPPING_ARRAY_INCR 32 556 557 /* 558 * Here we define the timer types used by the implementation as arguments in 559 * the set/get timer type calls. 560 */ 561 #define SCTP_TIMER_INIT 0 562 #define SCTP_TIMER_RECV 1 563 #define SCTP_TIMER_SEND 2 564 #define SCTP_TIMER_HEARTBEAT 3 565 #define SCTP_TIMER_PMTU 4 566 #define SCTP_TIMER_MAXSHUTDOWN 5 567 #define SCTP_TIMER_SIGNATURE 6 568 /* 569 * number of timer types in the base SCTP structure used in the set/get and 570 * has the base default. 571 */ 572 #define SCTP_NUM_TMRS 7 573 574 /* timer types */ 575 #define SCTP_TIMER_TYPE_NONE 0 576 #define SCTP_TIMER_TYPE_SEND 1 577 #define SCTP_TIMER_TYPE_INIT 2 578 #define SCTP_TIMER_TYPE_RECV 3 579 #define SCTP_TIMER_TYPE_SHUTDOWN 4 580 #define SCTP_TIMER_TYPE_HEARTBEAT 5 581 #define SCTP_TIMER_TYPE_COOKIE 6 582 #define SCTP_TIMER_TYPE_NEWCOOKIE 7 583 #define SCTP_TIMER_TYPE_PATHMTURAISE 8 584 #define SCTP_TIMER_TYPE_SHUTDOWNACK 9 585 #define SCTP_TIMER_TYPE_ASCONF 10 586 #define SCTP_TIMER_TYPE_SHUTDOWNGUARD 11 587 #define SCTP_TIMER_TYPE_AUTOCLOSE 12 588 #define SCTP_TIMER_TYPE_EVENTWAKE 13 589 #define SCTP_TIMER_TYPE_STRRESET 14 590 #define SCTP_TIMER_TYPE_INPKILL 15 591 #define SCTP_TIMER_TYPE_ITERATOR 16 592 #define SCTP_TIMER_TYPE_EARLYFR 17 593 #define SCTP_TIMER_TYPE_ASOCKILL 18 594 #define SCTP_TIMER_TYPE_ADDR_WQ 19 595 #define SCTP_TIMER_TYPE_ZERO_COPY 20 596 #define SCTP_TIMER_TYPE_ZCOPY_SENDQ 21 597 #define SCTP_TIMER_TYPE_PRIM_DELETED 22 598 /* add new timers here - and increment LAST */ 599 #define SCTP_TIMER_TYPE_LAST 23 600 601 #define SCTP_IS_TIMER_TYPE_VALID(t) (((t) > SCTP_TIMER_TYPE_NONE) && \ 602 ((t) < SCTP_TIMER_TYPE_LAST)) 603 604 605 606 /* 607 * Number of ticks before the soxwakeup() event that is delayed is sent AFTER 608 * the accept() call 609 */ 610 #define SCTP_EVENTWAKEUP_WAIT_TICKS 3000 611 612 /* 613 * Of course we really don't collect stale cookies, being folks of decerning 614 * taste. However we do count them, if we get too many before the association 615 * comes up.. we give up. Below is the constant that dictates when we give it 616 * up...this is a implemenation dependent treatment. In ours we do not ask 617 * for a extension of time, but just retry this many times... 618 */ 619 #define SCTP_MAX_STALE_COOKIES_I_COLLECT 10 620 621 /* max number of TSN's dup'd that I will hold */ 622 #define SCTP_MAX_DUP_TSNS 20 623 624 /* 625 * Here we define the types used when setting the retry amounts. 626 */ 627 /* constants for type of set */ 628 #define SCTP_MAXATTEMPT_INIT 2 629 #define SCTP_MAXATTEMPT_SEND 3 630 631 /* Maximum TSN's we will summarize in a drop report */ 632 #define SCTP_MAX_DROP_REPORT 16 633 634 /* How many drop re-attempts we make on INIT/COOKIE-ECHO */ 635 #define SCTP_RETRY_DROPPED_THRESH 4 636 637 /* 638 * And the max we will keep a history of in the tcb which MUST be lower than 639 * 256. 640 */ 641 #define SCTP_MAX_DROP_SAVE_REPORT 16 642 643 /* 644 * Here we define the default timers and the default number of attemts we 645 * make for each respective side (send/init). 646 */ 647 648 /* 649 * Maxmium number of chunks a single association can have on it. Note that 650 * this is a squishy number since the count can run over this if the user 651 * sends a large message down .. the fragmented chunks don't count until 652 * AFTER the message is on queue.. it would be the next send that blocks 653 * things. This number will get tuned up at boot in the sctp_init and use the 654 * number of clusters as a base. This way high bandwidth environments will 655 * not get impacted by the lower bandwidth sending a bunch of 1 byte chunks 656 */ 657 #define SCTP_ASOC_MAX_CHUNKS_ON_QUEUE 512 658 659 660 /* The conversion from time to ticks and vice versa is done by rounding 661 * upwards. This way we can test in the code the time to be positive and 662 * know that this corresponds to a positive number of ticks. 663 */ 664 #define MSEC_TO_TICKS(x) ((hz == 1000) ? x : ((((x) * hz) + 999) / 1000)) 665 #define TICKS_TO_MSEC(x) ((hz == 1000) ? x : ((((x) * 1000) + (hz - 1)) / hz)) 666 667 #define SEC_TO_TICKS(x) ((x) * hz) 668 #define TICKS_TO_SEC(x) (((x) + (hz - 1)) / hz) 669 670 /* 671 * Basically the minimum amount of time before I do a early FR. Making this 672 * value to low will cause duplicate retransmissions. 673 */ 674 #define SCTP_MINFR_MSEC_TIMER 250 675 /* The floor this value is allowed to fall to when starting a timer. */ 676 #define SCTP_MINFR_MSEC_FLOOR 20 677 678 /* init timer def = 1 sec */ 679 #define SCTP_INIT_SEC 1 680 681 /* send timer def = 1 seconds */ 682 #define SCTP_SEND_SEC 1 683 684 /* recv timer def = 200ms */ 685 #define SCTP_RECV_MSEC 200 686 687 /* 30 seconds + RTO (in ms) */ 688 #define SCTP_HB_DEFAULT_MSEC 30000 689 690 /* Max time I will wait for Shutdown to complete */ 691 #define SCTP_DEF_MAX_SHUTDOWN_SEC 180 692 693 694 /* 695 * This is how long a secret lives, NOT how long a cookie lives how many 696 * ticks the current secret will live. 697 */ 698 #define SCTP_DEFAULT_SECRET_LIFE_SEC 3600 699 700 #define SCTP_RTO_UPPER_BOUND (60000) /* 60 sec in ms */ 701 #define SCTP_RTO_UPPER_BOUND_SEC 60 /* for the init timer */ 702 #define SCTP_RTO_LOWER_BOUND (1000) /* 1 sec in ms */ 703 #define SCTP_RTO_INITIAL (3000) /* 3 sec in ms */ 704 705 706 #define SCTP_INP_KILL_TIMEOUT 20/* number of ms to retry kill of inpcb */ 707 #define SCTP_ASOC_KILL_TIMEOUT 10 /* number of ms to retry kill of inpcb */ 708 709 #define SCTP_DEF_MAX_INIT 8 710 #define SCTP_DEF_MAX_SEND 10 711 #define SCTP_DEF_MAX_PATH_RTX 5 712 713 #define SCTP_DEF_PMTU_RAISE_SEC 600 /* 10 min between raise attempts */ 714 #define SCTP_DEF_PMTU_MIN 600 715 716 717 #define SCTP_MSEC_IN_A_SEC 1000 718 #define SCTP_USEC_IN_A_SEC 1000000 719 #define SCTP_NSEC_IN_A_SEC 1000000000 720 721 #define SCTP_MAX_OUTSTANDING_DG 10000 722 723 /* How many streams I request initally by default */ 724 #define SCTP_OSTREAM_INITIAL 10 725 726 /* 727 * How many smallest_mtu's need to increase before a window update sack is 728 * sent (should be a power of 2). 729 */ 730 #define SCTP_SEG_TO_RWND_UPD 32 731 /* Send window update (incr * this > hiwat). Should be a power of 2 */ 732 #define SCTP_SCALE_OF_RWND_TO_UPD 4 733 #define SCTP_MINIMAL_RWND (4096) /* minimal rwnd */ 734 735 #define SCTP_ADDRMAX 24 736 737 /* SCTP DEBUG Switch parameters */ 738 #define SCTP_DEBUG_TIMER1 0x00000001 739 #define SCTP_DEBUG_TIMER2 0x00000002 /* unused */ 740 #define SCTP_DEBUG_TIMER3 0x00000004 /* unused */ 741 #define SCTP_DEBUG_TIMER4 0x00000008 742 #define SCTP_DEBUG_OUTPUT1 0x00000010 743 #define SCTP_DEBUG_OUTPUT2 0x00000020 744 #define SCTP_DEBUG_OUTPUT3 0x00000040 745 #define SCTP_DEBUG_OUTPUT4 0x00000080 746 #define SCTP_DEBUG_UTIL1 0x00000100 747 #define SCTP_DEBUG_UTIL2 0x00000200 /* unused */ 748 #define SCTP_DEBUG_AUTH1 0x00000400 749 #define SCTP_DEBUG_AUTH2 0x00000800 /* unused */ 750 #define SCTP_DEBUG_INPUT1 0x00001000 751 #define SCTP_DEBUG_INPUT2 0x00002000 752 #define SCTP_DEBUG_INPUT3 0x00004000 753 #define SCTP_DEBUG_INPUT4 0x00008000 /* unused */ 754 #define SCTP_DEBUG_ASCONF1 0x00010000 755 #define SCTP_DEBUG_ASCONF2 0x00020000 756 #define SCTP_DEBUG_OUTPUT5 0x00040000 /* unused */ 757 #define SCTP_DEBUG_XXX 0x00080000 /* unused */ 758 #define SCTP_DEBUG_PCB1 0x00100000 759 #define SCTP_DEBUG_PCB2 0x00200000 /* unused */ 760 #define SCTP_DEBUG_PCB3 0x00400000 761 #define SCTP_DEBUG_PCB4 0x00800000 762 #define SCTP_DEBUG_INDATA1 0x01000000 763 #define SCTP_DEBUG_INDATA2 0x02000000 /* unused */ 764 #define SCTP_DEBUG_INDATA3 0x04000000 /* unused */ 765 #define SCTP_DEBUG_INDATA4 0x08000000 /* unused */ 766 #define SCTP_DEBUG_USRREQ1 0x10000000 /* unused */ 767 #define SCTP_DEBUG_USRREQ2 0x20000000 /* unused */ 768 #define SCTP_DEBUG_PEEL1 0x40000000 769 #define SCTP_DEBUG_XXXXX 0x80000000 /* unused */ 770 #define SCTP_DEBUG_ALL 0x7ff3ffff 771 #define SCTP_DEBUG_NOISY 0x00040000 772 773 /* What sender needs to see to avoid SWS or we consider peers rwnd 0 */ 774 #define SCTP_SWS_SENDER_DEF 1420 775 776 /* 777 * SWS is scaled to the sb_hiwat of the socket. A value of 2 is hiwat/4, 1 778 * would be hiwat/2 etc. 779 */ 780 /* What receiver needs to see in sockbuf or we tell peer its 1 */ 781 #define SCTP_SWS_RECEIVER_DEF 3000 782 783 #define SCTP_INITIAL_CWND 4380 784 785 #define SCTP_DEFAULT_MTU 1500 /* emegency default MTU */ 786 /* amount peer is obligated to have in rwnd or I will abort */ 787 #define SCTP_MIN_RWND 1500 788 789 #define SCTP_WINDOW_MIN 1500 /* smallest rwnd can be */ 790 #define SCTP_WINDOW_MAX 1048576 /* biggest I can grow rwnd to My playing 791 * around suggests a value greater than 64k 792 * does not do much, I guess via the kernel 793 * limitations on the stream/socket. */ 794 795 /* I can handle a 1meg re-assembly */ 796 #define SCTP_DEFAULT_MAXMSGREASM 1048576 797 798 #define SCTP_DEFAULT_MAXSEGMENT 65535 799 800 #define SCTP_CHUNK_BUFFER_SIZE 512 801 #define SCTP_PARAM_BUFFER_SIZE 512 802 803 /* small chunk store for looking at chunk_list in auth */ 804 #define SCTP_SMALL_CHUNK_STORE 260 805 806 #define SCTP_DEFAULT_MINSEGMENT 512 /* MTU size ... if no mtu disc */ 807 #define SCTP_HOW_MANY_SECRETS 2 /* how many secrets I keep */ 808 809 #define SCTP_NUMBER_OF_SECRETS 8 /* or 8 * 4 = 32 octets */ 810 #define SCTP_SECRET_SIZE 32 /* number of octets in a 256 bits */ 811 812 813 /* 814 * SCTP upper layer notifications 815 */ 816 #define SCTP_NOTIFY_ASSOC_UP 1 817 #define SCTP_NOTIFY_ASSOC_DOWN 2 818 #define SCTP_NOTIFY_INTERFACE_DOWN 3 819 #define SCTP_NOTIFY_INTERFACE_UP 4 820 #define SCTP_NOTIFY_DG_FAIL 5 821 #define SCTP_NOTIFY_STRDATA_ERR 6 822 #define SCTP_NOTIFY_ASSOC_ABORTED 7 823 #define SCTP_NOTIFY_PEER_OPENED_STREAM 8 824 #define SCTP_NOTIFY_STREAM_OPENED_OK 9 825 #define SCTP_NOTIFY_ASSOC_RESTART 10 826 #define SCTP_NOTIFY_HB_RESP 11 827 #define SCTP_NOTIFY_ASCONF_SUCCESS 12 828 #define SCTP_NOTIFY_ASCONF_FAILED 13 829 #define SCTP_NOTIFY_PEER_SHUTDOWN 14 830 #define SCTP_NOTIFY_ASCONF_ADD_IP 15 831 #define SCTP_NOTIFY_ASCONF_DELETE_IP 16 832 #define SCTP_NOTIFY_ASCONF_SET_PRIMARY 17 833 #define SCTP_NOTIFY_PARTIAL_DELVIERY_INDICATION 18 834 #define SCTP_NOTIFY_INTERFACE_CONFIRMED 20 835 #define SCTP_NOTIFY_STR_RESET_RECV 21 836 #define SCTP_NOTIFY_STR_RESET_SEND 22 837 #define SCTP_NOTIFY_STR_RESET_FAILED_OUT 23 838 #define SCTP_NOTIFY_STR_RESET_FAILED_IN 24 839 #define SCTP_NOTIFY_AUTH_NEW_KEY 25 840 #define SCTP_NOTIFY_AUTH_KEY_CONFLICT 26 841 #define SCTP_NOTIFY_SPECIAL_SP_FAIL 27 842 #define SCTP_NOTIFY_MAX 27 843 844 /* This is the value for messages that are NOT completely 845 * copied down where we will start to split the message. 846 * So, with our default, we split only if the piece we 847 * want to take will fill up a full MTU (assuming 848 * a 1500 byte MTU). 849 */ 850 #define SCTP_DEFAULT_SPLIT_POINT_MIN 2904 851 852 /* ABORT CODES and other tell-tale location 853 * codes are generated by adding the below 854 * to the instance id. 855 */ 856 857 /* File defines */ 858 #define SCTP_FROM_SCTP_INPUT 0x10000000 859 #define SCTP_FROM_SCTP_PCB 0x20000000 860 #define SCTP_FROM_SCTP_INDATA 0x30000000 861 #define SCTP_FROM_SCTP_TIMER 0x40000000 862 #define SCTP_FROM_SCTP_USRREQ 0x50000000 863 #define SCTP_FROM_SCTPUTIL 0x60000000 864 #define SCTP_FROM_SCTP6_USRREQ 0x70000000 865 #define SCTP_FROM_SCTP_ASCONF 0x80000000 866 #define SCTP_FROM_SCTP_OUTPUT 0x90000000 867 #define SCTP_FROM_SCTP_PEELOFF 0xa0000000 868 #define SCTP_FROM_SCTP_PANDA 0xb0000000 869 #define SCTP_FROM_SCTP_SYSCTL 0xc0000000 870 871 /* Location ID's */ 872 #define SCTP_LOC_1 0x00000001 873 #define SCTP_LOC_2 0x00000002 874 #define SCTP_LOC_3 0x00000003 875 #define SCTP_LOC_4 0x00000004 876 #define SCTP_LOC_5 0x00000005 877 #define SCTP_LOC_6 0x00000006 878 #define SCTP_LOC_7 0x00000007 879 #define SCTP_LOC_8 0x00000008 880 #define SCTP_LOC_9 0x00000009 881 #define SCTP_LOC_10 0x0000000a 882 #define SCTP_LOC_11 0x0000000b 883 #define SCTP_LOC_12 0x0000000c 884 #define SCTP_LOC_13 0x0000000d 885 #define SCTP_LOC_14 0x0000000e 886 #define SCTP_LOC_15 0x0000000f 887 #define SCTP_LOC_16 0x00000010 888 #define SCTP_LOC_17 0x00000011 889 #define SCTP_LOC_18 0x00000012 890 #define SCTP_LOC_19 0x00000013 891 #define SCTP_LOC_20 0x00000014 892 #define SCTP_LOC_21 0x00000015 893 #define SCTP_LOC_22 0x00000016 894 #define SCTP_LOC_23 0x00000017 895 #define SCTP_LOC_24 0x00000018 896 #define SCTP_LOC_25 0x00000019 897 #define SCTP_LOC_26 0x0000001a 898 #define SCTP_LOC_27 0x0000001b 899 #define SCTP_LOC_28 0x0000001c 900 #define SCTP_LOC_29 0x0000001d 901 #define SCTP_LOC_30 0x0000001e 902 #define SCTP_LOC_31 0x0000001f 903 #define SCTP_LOC_32 0x00000020 904 #define SCTP_LOC_33 0x00000021 905 906 907 /* Free assoc codes */ 908 #define SCTP_NORMAL_PROC 0 909 #define SCTP_PCBFREE_NOFORCE 1 910 #define SCTP_PCBFREE_FORCE 2 911 912 /* From codes for adding addresses */ 913 #define SCTP_ADDR_IS_CONFIRMED 8 914 #define SCTP_ADDR_DYNAMIC_ADDED 6 915 #define SCTP_IN_COOKIE_PROC 100 916 #define SCTP_ALLOC_ASOC 1 917 #define SCTP_LOAD_ADDR_2 2 918 #define SCTP_LOAD_ADDR_3 3 919 #define SCTP_LOAD_ADDR_4 4 920 #define SCTP_LOAD_ADDR_5 5 921 922 #define SCTP_DONOT_SETSCOPE 0 923 #define SCTP_DO_SETSCOPE 1 924 925 926 /* This value determines the default for when 927 * we try to add more on the send queue., if 928 * there is room. This prevents us from cycling 929 * into the copy_resume routine to often if 930 * we have not got enough space to add a decent 931 * enough size message. Note that if we have enough 932 * space to complete the message copy we will always 933 * add to the message, no matter what the size. Its 934 * only when we reach the point that we have some left 935 * to add, there is only room for part of it that we 936 * will use this threshold. Its also a sysctl. 937 */ 938 #define SCTP_DEFAULT_ADD_MORE 1452 939 940 #ifndef SCTP_PCBHASHSIZE 941 /* default number of association hash buckets in each endpoint */ 942 #define SCTP_PCBHASHSIZE 256 943 #endif 944 #ifndef SCTP_TCBHASHSIZE 945 #define SCTP_TCBHASHSIZE 1024 946 #endif 947 948 #ifndef SCTP_CHUNKQUEUE_SCALE 949 #define SCTP_CHUNKQUEUE_SCALE 10 950 #endif 951 952 /* clock variance is 1 ms */ 953 #define SCTP_CLOCK_GRANULARITY 1 954 #define IP_HDR_SIZE 40 /* we use the size of a IP6 header here this 955 * detracts a small amount for ipv4 but it 956 * simplifies the ipv6 addition */ 957 958 /* Argument magic number for sctp_inpcb_free() */ 959 960 /* third argument */ 961 #define SCTP_CALLED_DIRECTLY_NOCMPSET 0 962 #define SCTP_CALLED_AFTER_CMPSET_OFCLOSE 1 963 964 /* second argument */ 965 #define SCTP_FREE_SHOULD_USE_ABORT 1 966 #define SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE 0 967 968 #ifndef IPPROTO_SCTP 969 #define IPPROTO_SCTP 132 /* the Official IANA number :-) */ 970 #endif /* !IPPROTO_SCTP */ 971 972 #define SCTP_MAX_DATA_BUNDLING 256 973 #define SCTP_MAX_CONTROL_BUNDLING 20 974 975 /* modular comparison */ 976 /* True if a > b (mod = M) */ 977 #define compare_with_wrap(a, b, M) (((a > b) && ((a - b) < ((M >> 1) + 1))) || \ 978 ((b > a) && ((b - a) > ((M >> 1) + 1)))) 979 980 981 /* Mapping array manipulation routines */ 982 #define SCTP_IS_TSN_PRESENT(arry, gap) ((arry[(gap >> 3)] >> (gap & 0x07)) & 0x01) 983 #define SCTP_SET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] |= (0x01 << ((gap & 0x07)))) 984 #define SCTP_UNSET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] &= ((~(0x01 << ((gap & 0x07)))) & 0xff)) 985 986 987 #define SCTP_RETRAN_DONE -1 988 #define SCTP_RETRAN_EXIT -2 989 990 /* 991 * This value defines the number of vtag block time wait entry's per list 992 * element. Each entry will take 2 4 byte ints (and of course the overhead 993 * of the next pointer as well). Using 15 as an example will yield * ((8 * 994 * 15) + 8) or 128 bytes of overhead for each timewait block that gets 995 * initialized. Increasing it to 31 would yeild 256 bytes per block. 996 */ 997 #define SCTP_NUMBER_IN_VTAG_BLOCK 15 998 /* 999 * If we use the STACK option, we have an array of this size head pointers. 1000 * This array is mod'd the with the size to find which bucket and then all 1001 * entries must be searched to see if the tag is in timed wait. If so we 1002 * reject it. 1003 */ 1004 #define SCTP_STACK_VTAG_HASH_SIZE 31 1005 #define SCTP_STACK_VTAG_HASH_SIZE_A 32 1006 1007 1008 /* 1009 * If we use the per-endpoint model than we do not have a hash table of 1010 * entries but instead have a single head pointer and we must crawl through 1011 * the entire list. 1012 */ 1013 1014 /* 1015 * Number of seconds of time wait for a vtag. 1016 */ 1017 #define SCTP_TIME_WAIT 60 1018 1019 /* This time wait is the same as the default cookie life 1020 * since we now enter a tag in every time we send a cookie. 1021 * We want this shorter to avoid vtag depletion. 1022 */ 1023 #define SCTP_TIME_WAIT_SHORT 60 1024 1025 /* The system retains a cache of free chunks such to 1026 * cut down on calls the memory allocation system. There 1027 * is a per association limit of free items and a overall 1028 * system limit. If either one gets hit then the resource 1029 * stops being cached. 1030 */ 1031 1032 #define SCTP_DEF_ASOC_RESC_LIMIT 10 1033 #define SCTP_DEF_SYSTEM_RESC_LIMIT 1000 1034 1035 /*- 1036 * defines for socket lock states. 1037 * Used by __APPLE__ and SCTP_SO_LOCK_TESTING 1038 */ 1039 #define SCTP_SO_LOCKED 1 1040 #define SCTP_SO_NOT_LOCKED 0 1041 1042 1043 #define SCTP_HOLDS_LOCK 1 1044 #define SCTP_NOT_LOCKED 0 1045 1046 /*- 1047 * For address locks, do we hold the lock? 1048 */ 1049 #define SCTP_ADDR_LOCKED 1 1050 #define SCTP_ADDR_NOT_LOCKED 0 1051 1052 #define IN4_ISPRIVATE_ADDRESS(a) \ 1053 ((((uint8_t *)&(a)->s_addr)[0] == 10) || \ 1054 ((((uint8_t *)&(a)->s_addr)[0] == 172) && \ 1055 (((uint8_t *)&(a)->s_addr)[1] >= 16) && \ 1056 (((uint8_t *)&(a)->s_addr)[1] <= 32)) || \ 1057 ((((uint8_t *)&(a)->s_addr)[0] == 192) && \ 1058 (((uint8_t *)&(a)->s_addr)[1] == 168))) 1059 1060 #define IN4_ISLOOPBACK_ADDRESS(a) \ 1061 ((((uint8_t *)&(a)->s_addr)[0] == 127) && \ 1062 (((uint8_t *)&(a)->s_addr)[1] == 0) && \ 1063 (((uint8_t *)&(a)->s_addr)[2] == 0) && \ 1064 (((uint8_t *)&(a)->s_addr)[3] == 1)) 1065 1066 1067 #if defined(_KERNEL) 1068 1069 #define SCTP_GETTIME_TIMEVAL(x) (getmicrouptime(x)) 1070 #define SCTP_GETPTIME_TIMEVAL(x) (microuptime(x)) 1071 #endif 1072 /*#if defined(__FreeBSD__) || defined(__APPLE__)*/ 1073 /*#define SCTP_GETTIME_TIMEVAL(x) { \*/ 1074 /* (x)->tv_sec = ticks / 1000; \*/ 1075 /* (x)->tv_usec = (ticks % 1000) * 1000; \*/ 1076 /*}*/ 1077 1078 /*#else*/ 1079 /*#define SCTP_GETTIME_TIMEVAL(x) (microtime(x))*/ 1080 /*#endif __FreeBSD__ */ 1081 1082 #if defined(_KERNEL) || defined(__Userspace__) 1083 #define sctp_sowwakeup(inp, so) \ 1084 do { \ 1085 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1086 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \ 1087 } else { \ 1088 sowwakeup(so); \ 1089 } \ 1090 } while (0) 1091 1092 #define sctp_sowwakeup_locked(inp, so) \ 1093 do { \ 1094 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1095 SOCKBUF_UNLOCK(&((so)->so_snd)); \ 1096 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \ 1097 } else { \ 1098 sowwakeup_locked(so); \ 1099 } \ 1100 } while (0) 1101 1102 #define sctp_sorwakeup(inp, so) \ 1103 do { \ 1104 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1105 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \ 1106 } else { \ 1107 sorwakeup(so); \ 1108 } \ 1109 } while (0) 1110 1111 #define sctp_sorwakeup_locked(inp, so) \ 1112 do { \ 1113 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1114 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \ 1115 SOCKBUF_UNLOCK(&((so)->so_rcv)); \ 1116 } else { \ 1117 sorwakeup_locked(so); \ 1118 } \ 1119 } while (0) 1120 1121 #endif /* _KERNEL || __Userspace__ */ 1122 #endif 1123