1 /*- 2 * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved. 3 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved. 4 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * a) Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * 12 * b) Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in 14 * the documentation and/or other materials provided with the distribution. 15 * 16 * c) Neither the name of Cisco Systems, Inc. nor the names of its 17 * contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 22 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 30 * THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #ifdef __FreeBSD__ 34 #include <sys/cdefs.h> 35 __FBSDID("$FreeBSD: head/sys/netinet/sctp_constants.h 263921 2014-03-29 20:21:36Z tuexen $"); 36 #endif 37 38 #ifndef _NETINET_SCTP_CONSTANTS_H_ 39 #define _NETINET_SCTP_CONSTANTS_H_ 40 41 #if defined(__Userspace_os_Windows) 42 extern void getwintimeofday(struct timeval *tv); 43 #endif 44 45 /* IANA assigned port number for SCTP over UDP encapsulation */ 46 #define SCTP_OVER_UDP_TUNNELING_PORT 9899 47 48 /* Number of packets to get before sack sent by default */ 49 #define SCTP_DEFAULT_SACK_FREQ 2 50 51 /* Address limit - This variable is calculated 52 * based on an 65535 byte max ip packet. We take out 100 bytes 53 * for the cookie, 40 bytes for a v6 header and 32 54 * bytes for the init structure. A second init structure 55 * for the init-ack and then finally a third one for the 56 * imbedded init. This yeilds 100+40+(3 * 32) = 236 bytes. 57 * This leaves 65299 bytes for addresses. We throw out the 299 bytes. 58 * Now whatever we send in the INIT() we need to allow to get back in the 59 * INIT-ACK plus all the values from INIT and INIT-ACK 60 * listed in the cookie. Plus we need some overhead for 61 * maybe copied parameters in the COOKIE. If we 62 * allow 1080 addresses, and each side has 1080 V6 addresses 63 * that will be 21600 bytes. In the INIT-ACK we will 64 * see the INIT-ACK 21600 + 43200 in the cookie. This leaves 65 * about 500 bytes slack for misc things in the cookie. 66 */ 67 #define SCTP_ADDRESS_LIMIT 1080 68 69 /* We need at least 2k of space for us, inits 70 * larger than that lets abort. 71 */ 72 #define SCTP_LARGEST_INIT_ACCEPTED (65535 - 2048) 73 74 /* Number of addresses where we just skip the counting */ 75 #define SCTP_COUNT_LIMIT 40 76 77 #define SCTP_ZERO_COPY_TICK_DELAY (((100 * hz) + 999) / 1000) 78 #define SCTP_ZERO_COPY_SENDQ_TICK_DELAY (((100 * hz) + 999) / 1000) 79 80 /* Number of ticks to delay before running 81 * iterator on an address change. 82 */ 83 #define SCTP_ADDRESS_TICK_DELAY 2 84 85 #define SCTP_VERSION_STRING "KAME-BSD 1.1" 86 /* #define SCTP_AUDITING_ENABLED 1 used for debug/auditing */ 87 #define SCTP_AUDIT_SIZE 256 88 89 90 #define SCTP_KTRHEAD_NAME "sctp_iterator" 91 #define SCTP_KTHREAD_PAGES 0 92 93 #define SCTP_MCORE_NAME "sctp_core_worker" 94 95 96 /* If you support Multi-VRF how big to 97 * make the initial array of VRF's to. 98 */ 99 #define SCTP_DEFAULT_VRF_SIZE 4 100 101 /* constants for rto calc */ 102 #define sctp_align_safe_nocopy 0 103 #define sctp_align_unsafe_makecopy 1 104 105 /* JRS - Values defined for the HTCP algorithm */ 106 #define ALPHA_BASE (1<<7) /* 1.0 with shift << 7 */ 107 #define BETA_MIN (1<<6) /* 0.5 with shift << 7 */ 108 #define BETA_MAX 102 /* 0.8 with shift << 7 */ 109 110 /* Places that CWND log can happen from */ 111 #define SCTP_CWND_LOG_FROM_FR 1 112 #define SCTP_CWND_LOG_FROM_RTX 2 113 #define SCTP_CWND_LOG_FROM_BRST 3 114 #define SCTP_CWND_LOG_FROM_SS 4 115 #define SCTP_CWND_LOG_FROM_CA 5 116 #define SCTP_CWND_LOG_FROM_SAT 6 117 #define SCTP_BLOCK_LOG_INTO_BLK 7 118 #define SCTP_BLOCK_LOG_OUTOF_BLK 8 119 #define SCTP_BLOCK_LOG_CHECK 9 120 #define SCTP_STR_LOG_FROM_INTO_STRD 10 121 #define SCTP_STR_LOG_FROM_IMMED_DEL 11 122 #define SCTP_STR_LOG_FROM_INSERT_HD 12 123 #define SCTP_STR_LOG_FROM_INSERT_MD 13 124 #define SCTP_STR_LOG_FROM_INSERT_TL 14 125 #define SCTP_STR_LOG_FROM_MARK_TSN 15 126 #define SCTP_STR_LOG_FROM_EXPRS_DEL 16 127 #define SCTP_FR_LOG_BIGGEST_TSNS 17 128 #define SCTP_FR_LOG_STRIKE_TEST 18 129 #define SCTP_FR_LOG_STRIKE_CHUNK 19 130 #define SCTP_FR_T3_TIMEOUT 20 131 #define SCTP_MAP_PREPARE_SLIDE 21 132 #define SCTP_MAP_SLIDE_FROM 22 133 #define SCTP_MAP_SLIDE_RESULT 23 134 #define SCTP_MAP_SLIDE_CLEARED 24 135 #define SCTP_MAP_SLIDE_NONE 25 136 #define SCTP_FR_T3_MARK_TIME 26 137 #define SCTP_FR_T3_MARKED 27 138 #define SCTP_FR_T3_STOPPED 28 139 #define SCTP_FR_MARKED 30 140 #define SCTP_CWND_LOG_NOADV_SS 31 141 #define SCTP_CWND_LOG_NOADV_CA 32 142 #define SCTP_MAX_BURST_APPLIED 33 143 #define SCTP_MAX_IFP_APPLIED 34 144 #define SCTP_MAX_BURST_ERROR_STOP 35 145 #define SCTP_INCREASE_PEER_RWND 36 146 #define SCTP_DECREASE_PEER_RWND 37 147 #define SCTP_SET_PEER_RWND_VIA_SACK 38 148 #define SCTP_LOG_MBCNT_INCREASE 39 149 #define SCTP_LOG_MBCNT_DECREASE 40 150 #define SCTP_LOG_MBCNT_CHKSET 41 151 #define SCTP_LOG_NEW_SACK 42 152 #define SCTP_LOG_TSN_ACKED 43 153 #define SCTP_LOG_TSN_REVOKED 44 154 #define SCTP_LOG_LOCK_TCB 45 155 #define SCTP_LOG_LOCK_INP 46 156 #define SCTP_LOG_LOCK_SOCK 47 157 #define SCTP_LOG_LOCK_SOCKBUF_R 48 158 #define SCTP_LOG_LOCK_SOCKBUF_S 49 159 #define SCTP_LOG_LOCK_CREATE 50 160 #define SCTP_LOG_INITIAL_RTT 51 161 #define SCTP_LOG_RTTVAR 52 162 #define SCTP_LOG_SBALLOC 53 163 #define SCTP_LOG_SBFREE 54 164 #define SCTP_LOG_SBRESULT 55 165 #define SCTP_FR_DUPED 56 166 #define SCTP_FR_MARKED_EARLY 57 167 #define SCTP_FR_CWND_REPORT 58 168 #define SCTP_FR_CWND_REPORT_START 59 169 #define SCTP_FR_CWND_REPORT_STOP 60 170 #define SCTP_CWND_LOG_FROM_SEND 61 171 #define SCTP_CWND_INITIALIZATION 62 172 #define SCTP_CWND_LOG_FROM_T3 63 173 #define SCTP_CWND_LOG_FROM_SACK 64 174 #define SCTP_CWND_LOG_NO_CUMACK 65 175 #define SCTP_CWND_LOG_FROM_RESEND 66 176 #define SCTP_FR_LOG_CHECK_STRIKE 67 177 #define SCTP_SEND_NOW_COMPLETES 68 178 #define SCTP_CWND_LOG_FILL_OUTQ_CALLED 69 179 #define SCTP_CWND_LOG_FILL_OUTQ_FILLS 70 180 #define SCTP_LOG_FREE_SENT 71 181 #define SCTP_NAGLE_APPLIED 72 182 #define SCTP_NAGLE_SKIPPED 73 183 #define SCTP_WAKESND_FROM_SACK 74 184 #define SCTP_WAKESND_FROM_FWDTSN 75 185 #define SCTP_NOWAKE_FROM_SACK 76 186 #define SCTP_CWNDLOG_PRESEND 77 187 #define SCTP_CWNDLOG_ENDSEND 78 188 #define SCTP_AT_END_OF_SACK 79 189 #define SCTP_REASON_FOR_SC 80 190 #define SCTP_BLOCK_LOG_INTO_BLKA 81 191 #define SCTP_ENTER_USER_RECV 82 192 #define SCTP_USER_RECV_SACKS 83 193 #define SCTP_SORECV_BLOCKSA 84 194 #define SCTP_SORECV_BLOCKSB 85 195 #define SCTP_SORECV_DONE 86 196 #define SCTP_SACK_RWND_UPDATE 87 197 #define SCTP_SORECV_ENTER 88 198 #define SCTP_SORECV_ENTERPL 89 199 #define SCTP_MBUF_INPUT 90 200 #define SCTP_MBUF_IALLOC 91 201 #define SCTP_MBUF_IFREE 92 202 #define SCTP_MBUF_ICOPY 93 203 #define SCTP_MBUF_SPLIT 94 204 #define SCTP_SORCV_FREECTL 95 205 #define SCTP_SORCV_DOESCPY 96 206 #define SCTP_SORCV_DOESLCK 97 207 #define SCTP_SORCV_DOESADJ 98 208 #define SCTP_SORCV_BOTWHILE 99 209 #define SCTP_SORCV_PASSBF 100 210 #define SCTP_SORCV_ADJD 101 211 #define SCTP_UNKNOWN_MAX 102 212 #define SCTP_RANDY_STUFF 103 213 #define SCTP_RANDY_STUFF1 104 214 #define SCTP_STRMOUT_LOG_ASSIGN 105 215 #define SCTP_STRMOUT_LOG_SEND 106 216 #define SCTP_FLIGHT_LOG_DOWN_CA 107 217 #define SCTP_FLIGHT_LOG_UP 108 218 #define SCTP_FLIGHT_LOG_DOWN_GAP 109 219 #define SCTP_FLIGHT_LOG_DOWN_RSND 110 220 #define SCTP_FLIGHT_LOG_UP_RSND 111 221 #define SCTP_FLIGHT_LOG_DOWN_RSND_TO 112 222 #define SCTP_FLIGHT_LOG_DOWN_WP 113 223 #define SCTP_FLIGHT_LOG_UP_REVOKE 114 224 #define SCTP_FLIGHT_LOG_DOWN_PDRP 115 225 #define SCTP_FLIGHT_LOG_DOWN_PMTU 116 226 #define SCTP_SACK_LOG_NORMAL 117 227 #define SCTP_SACK_LOG_EXPRESS 118 228 #define SCTP_MAP_TSN_ENTERS 119 229 #define SCTP_THRESHOLD_CLEAR 120 230 #define SCTP_THRESHOLD_INCR 121 231 #define SCTP_FLIGHT_LOG_DWN_WP_FWD 122 232 #define SCTP_FWD_TSN_CHECK 123 233 #define SCTP_LOG_MAX_TYPES 124 234 /* 235 * To turn on various logging, you must first enable 'options KTR' and 236 * you might want to bump the entires 'options KTR_ENTRIES=80000'. 237 * To get something to log you define one of the logging defines. 238 * (see LINT). 239 * 240 * This gets the compile in place, but you still need to turn the 241 * logging flag on too in the sysctl (see in sctp.h). 242 */ 243 244 #define SCTP_LOG_EVENT_UNKNOWN 0 245 #define SCTP_LOG_EVENT_CWND 1 246 #define SCTP_LOG_EVENT_BLOCK 2 247 #define SCTP_LOG_EVENT_STRM 3 248 #define SCTP_LOG_EVENT_FR 4 249 #define SCTP_LOG_EVENT_MAP 5 250 #define SCTP_LOG_EVENT_MAXBURST 6 251 #define SCTP_LOG_EVENT_RWND 7 252 #define SCTP_LOG_EVENT_MBCNT 8 253 #define SCTP_LOG_EVENT_SACK 9 254 #define SCTP_LOG_LOCK_EVENT 10 255 #define SCTP_LOG_EVENT_RTT 11 256 #define SCTP_LOG_EVENT_SB 12 257 #define SCTP_LOG_EVENT_NAGLE 13 258 #define SCTP_LOG_EVENT_WAKE 14 259 #define SCTP_LOG_MISC_EVENT 15 260 #define SCTP_LOG_EVENT_CLOSE 16 261 #define SCTP_LOG_EVENT_MBUF 17 262 #define SCTP_LOG_CHUNK_PROC 18 263 #define SCTP_LOG_ERROR_RET 19 264 265 #define SCTP_LOG_MAX_EVENT 20 266 267 #define SCTP_LOCK_UNKNOWN 2 268 269 270 /* number of associations by default for zone allocation */ 271 #define SCTP_MAX_NUM_OF_ASOC 40000 272 /* how many addresses per assoc remote and local */ 273 #define SCTP_SCALE_FOR_ADDR 2 274 275 /* default AUTO_ASCONF mode enable(1)/disable(0) value (sysctl) */ 276 #if defined(__APPLE__) 277 #if !defined(SCTP_APPLE_AUTO_ASCONF) 278 #define SCTP_DEFAULT_AUTO_ASCONF 0 279 #else 280 #define SCTP_DEFAULT_AUTO_ASCONF 1 281 #endif 282 #else 283 #define SCTP_DEFAULT_AUTO_ASCONF 1 284 #endif 285 286 /* default MULTIPLE_ASCONF mode enable(1)/disable(0) value (sysctl) */ 287 #define SCTP_DEFAULT_MULTIPLE_ASCONFS 0 288 289 /* default MOBILITY_BASE mode enable(1)/disable(0) value (sysctl) */ 290 #if defined(__APPLE__) 291 #if !defined(SCTP_APPLE_MOBILITY_BASE) 292 #define SCTP_DEFAULT_MOBILITY_BASE 0 293 #else 294 #define SCTP_DEFAULT_MOBILITY_BASE 1 295 #endif 296 #else 297 #define SCTP_DEFAULT_MOBILITY_BASE 0 298 #endif 299 300 /* default MOBILITY_FASTHANDOFF mode enable(1)/disable(0) value (sysctl) */ 301 #if defined(__APPLE__) 302 #if !defined(SCTP_APPLE_MOBILITY_FASTHANDOFF) 303 #define SCTP_DEFAULT_MOBILITY_FASTHANDOFF 0 304 #else 305 #define SCTP_DEFAULT_MOBILITY_FASTHANDOFF 1 306 #endif 307 #else 308 #define SCTP_DEFAULT_MOBILITY_FASTHANDOFF 0 309 #endif 310 311 /* 312 * Theshold for rwnd updates, we have to read (sb_hiwat >> 313 * SCTP_RWND_HIWAT_SHIFT) before we will look to see if we need to send a 314 * window update sack. When we look, we compare the last rwnd we sent vs the 315 * current rwnd. It too must be greater than this value. Using 3 divdes the 316 * hiwat by 8, so for 200k rwnd we need to read 24k. For a 64k rwnd we need 317 * to read 8k. This seems about right.. I hope :-D.. we do set a 318 * min of a MTU on it so if the rwnd is real small we will insist 319 * on a full MTU of 1500 bytes. 320 */ 321 #define SCTP_RWND_HIWAT_SHIFT 3 322 323 /* How much of the rwnd must the 324 * message be taking up to start partial delivery. 325 * We calculate this by shifing the hi_water (recv_win) 326 * left the following .. set to 1, when a message holds 327 * 1/2 the rwnd. If we set it to 2 when a message holds 328 * 1/4 the rwnd...etc.. 329 */ 330 331 #define SCTP_PARTIAL_DELIVERY_SHIFT 1 332 333 /* 334 * default HMAC for cookies, etc... use one of the AUTH HMAC id's 335 * SCTP_HMAC is the HMAC_ID to use 336 * SCTP_SIGNATURE_SIZE is the digest length 337 */ 338 #define SCTP_HMAC SCTP_AUTH_HMAC_ID_SHA1 339 #define SCTP_SIGNATURE_SIZE SCTP_AUTH_DIGEST_LEN_SHA1 340 #define SCTP_SIGNATURE_ALOC_SIZE SCTP_SIGNATURE_SIZE 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 350 351 /* how many executions every N tick's */ 352 #define SCTP_ITERATOR_MAX_AT_ONCE 20 353 354 /* number of clock ticks between iterator executions */ 355 #define SCTP_ITERATOR_TICKS 1 356 357 /* 358 * option: If you comment out the following you will receive the old behavior 359 * of obeying cwnd for the fast retransmit algorithm. With this defined a FR 360 * happens right away with-out waiting for the flightsize to drop below the 361 * cwnd value (which is reduced by the FR to 1/2 the inflight packets). 362 */ 363 #define SCTP_IGNORE_CWND_ON_FR 1 364 365 /* 366 * Adds implementors guide behavior to only use newest highest update in SACK 367 * gap ack's to figure out if you need to stroke a chunk for FR. 368 */ 369 #define SCTP_NO_FR_UNLESS_SEGMENT_SMALLER 1 370 371 /* default max I can burst out after a fast retransmit, 0 disables it */ 372 #define SCTP_DEF_MAX_BURST 4 373 #define SCTP_DEF_HBMAX_BURST 4 374 #define SCTP_DEF_FRMAX_BURST 4 375 376 /* RTO calculation flag to say if it 377 * is safe to determine local lan or not. 378 */ 379 #define SCTP_RTT_FROM_NON_DATA 0 380 #define SCTP_RTT_FROM_DATA 1 381 382 383 /* IP hdr (20/40) + 12+2+2 (enet) + sctp common 12 */ 384 #define SCTP_FIRST_MBUF_RESV 68 385 /* Packet transmit states in the sent field */ 386 #define SCTP_DATAGRAM_UNSENT 0 387 #define SCTP_DATAGRAM_SENT 1 388 #define SCTP_DATAGRAM_RESEND1 2 /* not used (in code, but may 389 * hit this value) */ 390 #define SCTP_DATAGRAM_RESEND2 3 /* not used (in code, but may 391 * hit this value) */ 392 #define SCTP_DATAGRAM_RESEND 4 393 #define SCTP_DATAGRAM_ACKED 10010 394 #define SCTP_DATAGRAM_MARKED 20010 395 #define SCTP_FORWARD_TSN_SKIP 30010 396 #define SCTP_DATAGRAM_NR_ACKED 40010 397 398 /* chunk output send from locations */ 399 #define SCTP_OUTPUT_FROM_USR_SEND 0 400 #define SCTP_OUTPUT_FROM_T3 1 401 #define SCTP_OUTPUT_FROM_INPUT_ERROR 2 402 #define SCTP_OUTPUT_FROM_CONTROL_PROC 3 403 #define SCTP_OUTPUT_FROM_SACK_TMR 4 404 #define SCTP_OUTPUT_FROM_SHUT_TMR 5 405 #define SCTP_OUTPUT_FROM_HB_TMR 6 406 #define SCTP_OUTPUT_FROM_SHUT_ACK_TMR 7 407 #define SCTP_OUTPUT_FROM_ASCONF_TMR 8 408 #define SCTP_OUTPUT_FROM_STRRST_TMR 9 409 #define SCTP_OUTPUT_FROM_AUTOCLOSE_TMR 10 410 #define SCTP_OUTPUT_FROM_EARLY_FR_TMR 11 411 #define SCTP_OUTPUT_FROM_STRRST_REQ 12 412 #define SCTP_OUTPUT_FROM_USR_RCVD 13 413 #define SCTP_OUTPUT_FROM_COOKIE_ACK 14 414 #define SCTP_OUTPUT_FROM_DRAIN 15 415 #define SCTP_OUTPUT_FROM_CLOSING 16 416 #define SCTP_OUTPUT_FROM_SOCKOPT 17 417 418 /* SCTP chunk types are moved sctp.h for application (NAT, FW) use */ 419 420 /* align to 32-bit sizes */ 421 #define SCTP_SIZE32(x) ((((x) + 3) >> 2) << 2) 422 423 #define IS_SCTP_CONTROL(a) ((a)->chunk_type != SCTP_DATA) 424 #define IS_SCTP_DATA(a) ((a)->chunk_type == SCTP_DATA) 425 426 427 /* SCTP parameter types */ 428 /*************0x0000 series*************/ 429 #define SCTP_HEARTBEAT_INFO 0x0001 430 #if defined(__Userspace__) 431 #define SCTP_CONN_ADDRESS 0x0004 432 #endif 433 #define SCTP_IPV4_ADDRESS 0x0005 434 #define SCTP_IPV6_ADDRESS 0x0006 435 #define SCTP_STATE_COOKIE 0x0007 436 #define SCTP_UNRECOG_PARAM 0x0008 437 #define SCTP_COOKIE_PRESERVE 0x0009 438 #define SCTP_HOSTNAME_ADDRESS 0x000b 439 #define SCTP_SUPPORTED_ADDRTYPE 0x000c 440 441 /* draft-ietf-stewart-tsvwg-strreset-xxx */ 442 #define SCTP_STR_RESET_OUT_REQUEST 0x000d 443 #define SCTP_STR_RESET_IN_REQUEST 0x000e 444 #define SCTP_STR_RESET_TSN_REQUEST 0x000f 445 #define SCTP_STR_RESET_RESPONSE 0x0010 446 #define SCTP_STR_RESET_ADD_OUT_STREAMS 0x0011 447 #define SCTP_STR_RESET_ADD_IN_STREAMS 0x0012 448 449 #define SCTP_MAX_RESET_PARAMS 2 450 #define SCTP_STREAM_RESET_TSN_DELTA 0x1000 451 452 /*************0x4000 series*************/ 453 454 /*************0x8000 series*************/ 455 #define SCTP_ECN_CAPABLE 0x8000 456 457 /* draft-ietf-tsvwg-auth-xxx */ 458 #define SCTP_RANDOM 0x8002 459 #define SCTP_CHUNK_LIST 0x8003 460 #define SCTP_HMAC_LIST 0x8004 461 /* 462 * draft-ietf-tsvwg-addip-sctp-xx param=0x8008 len=0xNNNN Byte | Byte | Byte 463 * | Byte Byte | Byte ... 464 * 465 * Where each byte is a chunk type extension supported. For example, to support 466 * all chunks one would have (in hex): 467 * 468 * 80 01 00 09 C0 C1 80 81 82 00 00 00 469 * 470 * Has the parameter. C0 = PR-SCTP (RFC3758) C1, 80 = ASCONF (addip draft) 81 471 * = Packet Drop 82 = Stream Reset 83 = Authentication 472 */ 473 #define SCTP_SUPPORTED_CHUNK_EXT 0x8008 474 475 /*************0xC000 series*************/ 476 #define SCTP_PRSCTP_SUPPORTED 0xc000 477 /* draft-ietf-tsvwg-addip-sctp */ 478 #define SCTP_ADD_IP_ADDRESS 0xc001 479 #define SCTP_DEL_IP_ADDRESS 0xc002 480 #define SCTP_ERROR_CAUSE_IND 0xc003 481 #define SCTP_SET_PRIM_ADDR 0xc004 482 #define SCTP_SUCCESS_REPORT 0xc005 483 #define SCTP_ULP_ADAPTATION 0xc006 484 /* behave-nat-draft */ 485 #define SCTP_HAS_NAT_SUPPORT 0xc007 486 #define SCTP_NAT_VTAGS 0xc008 487 488 /* bits for TOS field */ 489 #define SCTP_ECT0_BIT 0x02 490 #define SCTP_ECT1_BIT 0x01 491 #define SCTP_CE_BITS 0x03 492 493 /* below turns off above */ 494 #define SCTP_FLEXIBLE_ADDRESS 0x20 495 #define SCTP_NO_HEARTBEAT 0x40 496 497 /* mask to get sticky */ 498 #define SCTP_STICKY_OPTIONS_MASK 0x0c 499 500 501 /* 502 * SCTP states for internal state machine XXX (should match "user" values) 503 */ 504 #define SCTP_STATE_EMPTY 0x0000 505 #define SCTP_STATE_INUSE 0x0001 506 #define SCTP_STATE_COOKIE_WAIT 0x0002 507 #define SCTP_STATE_COOKIE_ECHOED 0x0004 508 #define SCTP_STATE_OPEN 0x0008 509 #define SCTP_STATE_SHUTDOWN_SENT 0x0010 510 #define SCTP_STATE_SHUTDOWN_RECEIVED 0x0020 511 #define SCTP_STATE_SHUTDOWN_ACK_SENT 0x0040 512 #define SCTP_STATE_SHUTDOWN_PENDING 0x0080 513 #define SCTP_STATE_CLOSED_SOCKET 0x0100 514 #define SCTP_STATE_ABOUT_TO_BE_FREED 0x0200 515 #define SCTP_STATE_PARTIAL_MSG_LEFT 0x0400 516 #define SCTP_STATE_WAS_ABORTED 0x0800 517 #define SCTP_STATE_IN_ACCEPT_QUEUE 0x1000 518 #define SCTP_STATE_MASK 0x007f 519 520 #define SCTP_GET_STATE(asoc) ((asoc)->state & SCTP_STATE_MASK) 521 #define SCTP_SET_STATE(asoc, newstate) ((asoc)->state = ((asoc)->state & ~SCTP_STATE_MASK) | newstate) 522 #define SCTP_CLEAR_SUBSTATE(asoc, substate) ((asoc)->state &= ~substate) 523 #define SCTP_ADD_SUBSTATE(asoc, substate) ((asoc)->state |= substate) 524 525 /* SCTP reachability state for each address */ 526 #define SCTP_ADDR_REACHABLE 0x001 527 #define SCTP_ADDR_NO_PMTUD 0x002 528 #define SCTP_ADDR_NOHB 0x004 529 #define SCTP_ADDR_BEING_DELETED 0x008 530 #define SCTP_ADDR_NOT_IN_ASSOC 0x010 531 #define SCTP_ADDR_OUT_OF_SCOPE 0x080 532 #define SCTP_ADDR_UNCONFIRMED 0x200 533 #define SCTP_ADDR_REQ_PRIMARY 0x400 534 /* JRS 5/13/07 - Added potentially failed state for CMT PF */ 535 #define SCTP_ADDR_PF 0x800 536 537 /* bound address types (e.g. valid address types to allow) */ 538 #define SCTP_BOUND_V6 0x01 539 #define SCTP_BOUND_V4 0x02 540 541 /* 542 * what is the default number of mbufs in a chain I allow before switching to 543 * a cluster 544 */ 545 #define SCTP_DEFAULT_MBUFS_IN_CHAIN 5 546 547 /* How long a cookie lives in milli-seconds */ 548 #define SCTP_DEFAULT_COOKIE_LIFE 60000 549 550 /* Maximum the mapping array will grow to (TSN mapping array) */ 551 #define SCTP_MAPPING_ARRAY 512 552 553 /* size of the inital malloc on the mapping array */ 554 #define SCTP_INITIAL_MAPPING_ARRAY 16 555 /* how much we grow the mapping array each call */ 556 #define SCTP_MAPPING_ARRAY_INCR 32 557 558 /* 559 * Here we define the timer types used by the implementation as arguments in 560 * the set/get timer type calls. 561 */ 562 #define SCTP_TIMER_INIT 0 563 #define SCTP_TIMER_RECV 1 564 #define SCTP_TIMER_SEND 2 565 #define SCTP_TIMER_HEARTBEAT 3 566 #define SCTP_TIMER_PMTU 4 567 #define SCTP_TIMER_MAXSHUTDOWN 5 568 #define SCTP_TIMER_SIGNATURE 6 569 /* 570 * number of timer types in the base SCTP structure used in the set/get and 571 * has the base default. 572 */ 573 #define SCTP_NUM_TMRS 7 574 575 /* timer types */ 576 #define SCTP_TIMER_TYPE_NONE 0 577 #define SCTP_TIMER_TYPE_SEND 1 578 #define SCTP_TIMER_TYPE_INIT 2 579 #define SCTP_TIMER_TYPE_RECV 3 580 #define SCTP_TIMER_TYPE_SHUTDOWN 4 581 #define SCTP_TIMER_TYPE_HEARTBEAT 5 582 #define SCTP_TIMER_TYPE_COOKIE 6 583 #define SCTP_TIMER_TYPE_NEWCOOKIE 7 584 #define SCTP_TIMER_TYPE_PATHMTURAISE 8 585 #define SCTP_TIMER_TYPE_SHUTDOWNACK 9 586 #define SCTP_TIMER_TYPE_ASCONF 10 587 #define SCTP_TIMER_TYPE_SHUTDOWNGUARD 11 588 #define SCTP_TIMER_TYPE_AUTOCLOSE 12 589 #define SCTP_TIMER_TYPE_EVENTWAKE 13 590 #define SCTP_TIMER_TYPE_STRRESET 14 591 #define SCTP_TIMER_TYPE_INPKILL 15 592 #define SCTP_TIMER_TYPE_ASOCKILL 16 593 #define SCTP_TIMER_TYPE_ADDR_WQ 17 594 #define SCTP_TIMER_TYPE_ZERO_COPY 18 595 #define SCTP_TIMER_TYPE_ZCOPY_SENDQ 19 596 #define SCTP_TIMER_TYPE_PRIM_DELETED 20 597 /* add new timers here - and increment LAST */ 598 #define SCTP_TIMER_TYPE_LAST 21 599 600 #define SCTP_IS_TIMER_TYPE_VALID(t) (((t) > SCTP_TIMER_TYPE_NONE) && \ 601 ((t) < SCTP_TIMER_TYPE_LAST)) 602 603 604 #if defined(__APPLE__) 605 /* Number of ticks to run the main timer at in msec */ 606 #define SCTP_MAIN_TIMER_DEFAULT 10 607 #endif 608 609 /* max number of TSN's dup'd that I will hold */ 610 #define SCTP_MAX_DUP_TSNS 20 611 612 /* 613 * Here we define the types used when setting the retry amounts. 614 */ 615 /* How many drop re-attempts we make on INIT/COOKIE-ECHO */ 616 #define SCTP_RETRY_DROPPED_THRESH 4 617 618 /* 619 * Maxmium number of chunks a single association can have on it. Note that 620 * this is a squishy number since the count can run over this if the user 621 * sends a large message down .. the fragmented chunks don't count until 622 * AFTER the message is on queue.. it would be the next send that blocks 623 * things. This number will get tuned up at boot in the sctp_init and use the 624 * number of clusters as a base. This way high bandwidth environments will 625 * not get impacted by the lower bandwidth sending a bunch of 1 byte chunks 626 */ 627 #ifdef __Panda__ 628 #define SCTP_ASOC_MAX_CHUNKS_ON_QUEUE 10240 629 #else 630 #define SCTP_ASOC_MAX_CHUNKS_ON_QUEUE 512 631 #endif 632 633 634 /* The conversion from time to ticks and vice versa is done by rounding 635 * upwards. This way we can test in the code the time to be positive and 636 * know that this corresponds to a positive number of ticks. 637 */ 638 #define MSEC_TO_TICKS(x) ((hz == 1000) ? x : ((((x) * hz) + 999) / 1000)) 639 #define TICKS_TO_MSEC(x) ((hz == 1000) ? x : ((((x) * 1000) + (hz - 1)) / hz)) 640 641 #define SEC_TO_TICKS(x) ((x) * hz) 642 #define TICKS_TO_SEC(x) (((x) + (hz - 1)) / hz) 643 644 /* 645 * Basically the minimum amount of time before I do a early FR. Making this 646 * value to low will cause duplicate retransmissions. 647 */ 648 #define SCTP_MINFR_MSEC_TIMER 250 649 /* The floor this value is allowed to fall to when starting a timer. */ 650 #define SCTP_MINFR_MSEC_FLOOR 20 651 652 /* init timer def = 1 sec */ 653 #define SCTP_INIT_SEC 1 654 655 /* send timer def = 1 seconds */ 656 #define SCTP_SEND_SEC 1 657 658 /* recv timer def = 200ms */ 659 #define SCTP_RECV_MSEC 200 660 661 /* 30 seconds + RTO (in ms) */ 662 #define SCTP_HB_DEFAULT_MSEC 30000 663 664 /* Max time I will wait for Shutdown to complete */ 665 #define SCTP_DEF_MAX_SHUTDOWN_SEC 180 666 667 668 /* 669 * This is how long a secret lives, NOT how long a cookie lives how many 670 * ticks the current secret will live. 671 */ 672 #define SCTP_DEFAULT_SECRET_LIFE_SEC 3600 673 674 #define SCTP_RTO_UPPER_BOUND (60000) /* 60 sec in ms */ 675 #define SCTP_RTO_LOWER_BOUND (1000) /* 1 sec is ms */ 676 #define SCTP_RTO_INITIAL (3000) /* 3 sec in ms */ 677 678 679 #define SCTP_INP_KILL_TIMEOUT 20 /* number of ms to retry kill of inpcb */ 680 #define SCTP_ASOC_KILL_TIMEOUT 10 /* number of ms to retry kill of inpcb */ 681 682 #define SCTP_DEF_MAX_INIT 8 683 #define SCTP_DEF_MAX_SEND 10 684 #define SCTP_DEF_MAX_PATH_RTX 5 685 #define SCTP_DEF_PATH_PF_THRESHOLD SCTP_DEF_MAX_PATH_RTX 686 687 #define SCTP_DEF_PMTU_RAISE_SEC 600 /* 10 min between raise attempts */ 688 689 690 /* How many streams I request initally by default */ 691 #define SCTP_OSTREAM_INITIAL 10 692 #define SCTP_ISTREAM_INITIAL 2048 693 694 /* 695 * How many smallest_mtu's need to increase before a window update sack is 696 * sent (should be a power of 2). 697 */ 698 /* Send window update (incr * this > hiwat). Should be a power of 2 */ 699 #define SCTP_MINIMAL_RWND (4096) /* minimal rwnd */ 700 701 #define SCTP_ADDRMAX 16 702 703 /* SCTP DEBUG Switch parameters */ 704 #define SCTP_DEBUG_TIMER1 0x00000001 705 #define SCTP_DEBUG_TIMER2 0x00000002 /* unused */ 706 #define SCTP_DEBUG_TIMER3 0x00000004 /* unused */ 707 #define SCTP_DEBUG_TIMER4 0x00000008 708 #define SCTP_DEBUG_OUTPUT1 0x00000010 709 #define SCTP_DEBUG_OUTPUT2 0x00000020 710 #define SCTP_DEBUG_OUTPUT3 0x00000040 711 #define SCTP_DEBUG_OUTPUT4 0x00000080 712 #define SCTP_DEBUG_UTIL1 0x00000100 713 #define SCTP_DEBUG_UTIL2 0x00000200 /* unused */ 714 #define SCTP_DEBUG_AUTH1 0x00000400 715 #define SCTP_DEBUG_AUTH2 0x00000800 /* unused */ 716 #define SCTP_DEBUG_INPUT1 0x00001000 717 #define SCTP_DEBUG_INPUT2 0x00002000 718 #define SCTP_DEBUG_INPUT3 0x00004000 719 #define SCTP_DEBUG_INPUT4 0x00008000 /* unused */ 720 #define SCTP_DEBUG_ASCONF1 0x00010000 721 #define SCTP_DEBUG_ASCONF2 0x00020000 722 #define SCTP_DEBUG_OUTPUT5 0x00040000 /* unused */ 723 #define SCTP_DEBUG_XXX 0x00080000 /* unused */ 724 #define SCTP_DEBUG_PCB1 0x00100000 725 #define SCTP_DEBUG_PCB2 0x00200000 /* unused */ 726 #define SCTP_DEBUG_PCB3 0x00400000 727 #define SCTP_DEBUG_PCB4 0x00800000 728 #define SCTP_DEBUG_INDATA1 0x01000000 729 #define SCTP_DEBUG_INDATA2 0x02000000 /* unused */ 730 #define SCTP_DEBUG_INDATA3 0x04000000 /* unused */ 731 #define SCTP_DEBUG_CRCOFFLOAD 0x08000000 /* unused */ 732 #define SCTP_DEBUG_USRREQ1 0x10000000 /* unused */ 733 #define SCTP_DEBUG_USRREQ2 0x20000000 /* unused */ 734 #define SCTP_DEBUG_PEEL1 0x40000000 735 #if defined(__Userspace__) 736 #define SCTP_DEBUG_USR 0x80000000 737 #else 738 #define SCTP_DEBUG_XXXXX 0x80000000 /* unused */ 739 #endif 740 #define SCTP_DEBUG_ALL 0x7ff3ffff 741 #define SCTP_DEBUG_NOISY 0x00040000 742 743 /* What sender needs to see to avoid SWS or we consider peers rwnd 0 */ 744 #define SCTP_SWS_SENDER_DEF 1420 745 746 /* 747 * SWS is scaled to the sb_hiwat of the socket. A value of 2 is hiwat/4, 1 748 * would be hiwat/2 etc. 749 */ 750 /* What receiver needs to see in sockbuf or we tell peer its 1 */ 751 #define SCTP_SWS_RECEIVER_DEF 3000 752 753 #define SCTP_INITIAL_CWND 4380 754 755 #define SCTP_DEFAULT_MTU 1500 /* emergency default MTU */ 756 /* amount peer is obligated to have in rwnd or I will abort */ 757 #define SCTP_MIN_RWND 1500 758 759 #define SCTP_DEFAULT_MAXSEGMENT 65535 760 761 #define SCTP_CHUNK_BUFFER_SIZE 512 762 #define SCTP_PARAM_BUFFER_SIZE 512 763 764 /* small chunk store for looking at chunk_list in auth */ 765 #define SCTP_SMALL_CHUNK_STORE 260 766 767 #define SCTP_HOW_MANY_SECRETS 2 /* how many secrets I keep */ 768 769 #define SCTP_NUMBER_OF_SECRETS 8 /* or 8 * 4 = 32 octets */ 770 #define SCTP_SECRET_SIZE 32 /* number of octets in a 256 bits */ 771 772 773 /* 774 * SCTP upper layer notifications 775 */ 776 #define SCTP_NOTIFY_ASSOC_UP 1 777 #define SCTP_NOTIFY_ASSOC_DOWN 2 778 #define SCTP_NOTIFY_INTERFACE_DOWN 3 779 #define SCTP_NOTIFY_INTERFACE_UP 4 780 #define SCTP_NOTIFY_SENT_DG_FAIL 5 781 #define SCTP_NOTIFY_UNSENT_DG_FAIL 6 782 #define SCTP_NOTIFY_SPECIAL_SP_FAIL 7 783 #define SCTP_NOTIFY_ASSOC_LOC_ABORTED 8 784 #define SCTP_NOTIFY_ASSOC_REM_ABORTED 9 785 #define SCTP_NOTIFY_ASSOC_RESTART 10 786 #define SCTP_NOTIFY_PEER_SHUTDOWN 11 787 #define SCTP_NOTIFY_ASCONF_ADD_IP 12 788 #define SCTP_NOTIFY_ASCONF_DELETE_IP 13 789 #define SCTP_NOTIFY_ASCONF_SET_PRIMARY 14 790 #define SCTP_NOTIFY_PARTIAL_DELVIERY_INDICATION 15 791 #define SCTP_NOTIFY_INTERFACE_CONFIRMED 16 792 #define SCTP_NOTIFY_STR_RESET_RECV 17 793 #define SCTP_NOTIFY_STR_RESET_SEND 18 794 #define SCTP_NOTIFY_STR_RESET_FAILED_OUT 19 795 #define SCTP_NOTIFY_STR_RESET_FAILED_IN 20 796 #define SCTP_NOTIFY_STR_RESET_DENIED_OUT 21 797 #define SCTP_NOTIFY_STR_RESET_DENIED_IN 22 798 #define SCTP_NOTIFY_AUTH_NEW_KEY 23 799 #define SCTP_NOTIFY_AUTH_FREE_KEY 24 800 #define SCTP_NOTIFY_NO_PEER_AUTH 25 801 #define SCTP_NOTIFY_SENDER_DRY 26 802 #define SCTP_NOTIFY_REMOTE_ERROR 27 803 804 /* This is the value for messages that are NOT completely 805 * copied down where we will start to split the message. 806 * So, with our default, we split only if the piece we 807 * want to take will fill up a full MTU (assuming 808 * a 1500 byte MTU). 809 */ 810 #define SCTP_DEFAULT_SPLIT_POINT_MIN 2904 811 812 /* Maximum length of diagnostic information in error causes */ 813 #define SCTP_DIAG_INFO_LEN 64 814 815 /* ABORT CODES and other tell-tale location 816 * codes are generated by adding the below 817 * to the instance id. 818 */ 819 820 /* File defines */ 821 #define SCTP_FROM_SCTP_INPUT 0x10000000 822 #define SCTP_FROM_SCTP_PCB 0x20000000 823 #define SCTP_FROM_SCTP_INDATA 0x30000000 824 #define SCTP_FROM_SCTP_TIMER 0x40000000 825 #define SCTP_FROM_SCTP_USRREQ 0x50000000 826 #define SCTP_FROM_SCTPUTIL 0x60000000 827 #define SCTP_FROM_SCTP6_USRREQ 0x70000000 828 #define SCTP_FROM_SCTP_ASCONF 0x80000000 829 #define SCTP_FROM_SCTP_OUTPUT 0x90000000 830 #define SCTP_FROM_SCTP_PEELOFF 0xa0000000 831 #define SCTP_FROM_SCTP_PANDA 0xb0000000 832 #define SCTP_FROM_SCTP_SYSCTL 0xc0000000 833 834 /* Location ID's */ 835 #define SCTP_LOC_1 0x00000001 836 #define SCTP_LOC_2 0x00000002 837 #define SCTP_LOC_3 0x00000003 838 #define SCTP_LOC_4 0x00000004 839 #define SCTP_LOC_5 0x00000005 840 #define SCTP_LOC_6 0x00000006 841 #define SCTP_LOC_7 0x00000007 842 #define SCTP_LOC_8 0x00000008 843 #define SCTP_LOC_9 0x00000009 844 #define SCTP_LOC_10 0x0000000a 845 #define SCTP_LOC_11 0x0000000b 846 #define SCTP_LOC_12 0x0000000c 847 #define SCTP_LOC_13 0x0000000d 848 #define SCTP_LOC_14 0x0000000e 849 #define SCTP_LOC_15 0x0000000f 850 #define SCTP_LOC_16 0x00000010 851 #define SCTP_LOC_17 0x00000011 852 #define SCTP_LOC_18 0x00000012 853 #define SCTP_LOC_19 0x00000013 854 #define SCTP_LOC_20 0x00000014 855 #define SCTP_LOC_21 0x00000015 856 #define SCTP_LOC_22 0x00000016 857 #define SCTP_LOC_23 0x00000017 858 #define SCTP_LOC_24 0x00000018 859 #define SCTP_LOC_25 0x00000019 860 #define SCTP_LOC_26 0x0000001a 861 #define SCTP_LOC_27 0x0000001b 862 #define SCTP_LOC_28 0x0000001c 863 #define SCTP_LOC_29 0x0000001d 864 #define SCTP_LOC_30 0x0000001e 865 #define SCTP_LOC_31 0x0000001f 866 #define SCTP_LOC_32 0x00000020 867 #define SCTP_LOC_33 0x00000021 868 869 870 /* Free assoc codes */ 871 #define SCTP_NORMAL_PROC 0 872 #define SCTP_PCBFREE_NOFORCE 1 873 #define SCTP_PCBFREE_FORCE 2 874 875 /* From codes for adding addresses */ 876 #define SCTP_ADDR_IS_CONFIRMED 8 877 #define SCTP_ADDR_DYNAMIC_ADDED 6 878 #define SCTP_IN_COOKIE_PROC 100 879 #define SCTP_ALLOC_ASOC 1 880 #define SCTP_LOAD_ADDR_2 2 881 #define SCTP_LOAD_ADDR_3 3 882 #define SCTP_LOAD_ADDR_4 4 883 #define SCTP_LOAD_ADDR_5 5 884 885 #define SCTP_DONOT_SETSCOPE 0 886 #define SCTP_DO_SETSCOPE 1 887 888 889 /* This value determines the default for when 890 * we try to add more on the send queue., if 891 * there is room. This prevents us from cycling 892 * into the copy_resume routine to often if 893 * we have not got enough space to add a decent 894 * enough size message. Note that if we have enough 895 * space to complete the message copy we will always 896 * add to the message, no matter what the size. Its 897 * only when we reach the point that we have some left 898 * to add, there is only room for part of it that we 899 * will use this threshold. Its also a sysctl. 900 */ 901 #define SCTP_DEFAULT_ADD_MORE 1452 902 903 #ifndef SCTP_PCBHASHSIZE 904 /* default number of association hash buckets in each endpoint */ 905 #define SCTP_PCBHASHSIZE 256 906 #endif 907 #ifndef SCTP_TCBHASHSIZE 908 #define SCTP_TCBHASHSIZE 1024 909 #endif 910 911 #ifndef SCTP_CHUNKQUEUE_SCALE 912 #define SCTP_CHUNKQUEUE_SCALE 10 913 #endif 914 915 #ifdef __FreeBSD__ 916 /* clock variance is 1 ms */ 917 #define SCTP_CLOCK_GRANULARITY 1 918 #else 919 /* clock variance is 10 ms */ 920 #define SCTP_CLOCK_GRANULARITY 10 921 #endif 922 #define IP_HDR_SIZE 40 /* we use the size of a IP6 header here this 923 * detracts a small amount for ipv4 but it 924 * simplifies the ipv6 addition */ 925 926 /* Argument magic number for sctp_inpcb_free() */ 927 928 /* third argument */ 929 #define SCTP_CALLED_DIRECTLY_NOCMPSET 0 930 #define SCTP_CALLED_AFTER_CMPSET_OFCLOSE 1 931 #define SCTP_CALLED_FROM_INPKILL_TIMER 2 932 /* second argument */ 933 #define SCTP_FREE_SHOULD_USE_ABORT 1 934 #define SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE 0 935 936 #ifndef IPPROTO_SCTP 937 #define IPPROTO_SCTP 132 /* the Official IANA number :-) */ 938 #endif /* !IPPROTO_SCTP */ 939 940 #define SCTP_MAX_DATA_BUNDLING 256 941 942 /* modular comparison */ 943 /* See RFC 1982 for details. */ 944 #define SCTP_SSN_GT(a, b) (((a < b) && ((uint16_t)(b - a) > (1U<<15))) || \ 945 ((a > b) && ((uint16_t)(a - b) < (1U<<15)))) 946 #define SCTP_SSN_GE(a, b) (SCTP_SSN_GT(a, b) || (a == b)) 947 #define SCTP_TSN_GT(a, b) (((a < b) && ((uint32_t)(b - a) > (1U<<31))) || \ 948 ((a > b) && ((uint32_t)(a - b) < (1U<<31)))) 949 #define SCTP_TSN_GE(a, b) (SCTP_TSN_GT(a, b) || (a == b)) 950 951 /* Mapping array manipulation routines */ 952 #define SCTP_IS_TSN_PRESENT(arry, gap) ((arry[(gap >> 3)] >> (gap & 0x07)) & 0x01) 953 #define SCTP_SET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] |= (0x01 << ((gap & 0x07)))) 954 #define SCTP_UNSET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] &= ((~(0x01 << ((gap & 0x07)))) & 0xff)) 955 #define SCTP_CALC_TSN_TO_GAP(gap, tsn, mapping_tsn) do { \ 956 if (tsn >= mapping_tsn) { \ 957 gap = tsn - mapping_tsn; \ 958 } else { \ 959 gap = (MAX_TSN - mapping_tsn) + tsn + 1; \ 960 } \ 961 } while (0) 962 963 964 #define SCTP_RETRAN_DONE -1 965 #define SCTP_RETRAN_EXIT -2 966 967 /* 968 * This value defines the number of vtag block time wait entry's per list 969 * element. Each entry will take 2 4 byte ints (and of course the overhead 970 * of the next pointer as well). Using 15 as an example will yield * ((8 * 971 * 15) + 8) or 128 bytes of overhead for each timewait block that gets 972 * initialized. Increasing it to 31 would yeild 256 bytes per block. 973 */ 974 #define SCTP_NUMBER_IN_VTAG_BLOCK 15 975 /* 976 * If we use the STACK option, we have an array of this size head pointers. 977 * This array is mod'd the with the size to find which bucket and then all 978 * entries must be searched to see if the tag is in timed wait. If so we 979 * reject it. 980 */ 981 #define SCTP_STACK_VTAG_HASH_SIZE 32 982 983 /* 984 * Number of seconds of time wait for a vtag. 985 */ 986 #define SCTP_TIME_WAIT 60 987 988 /* How many micro seconds is the cutoff from 989 * local lan type rtt's 990 */ 991 /* 992 * We allow 900us for the rtt. 993 */ 994 #define SCTP_LOCAL_LAN_RTT 900 995 #define SCTP_LAN_UNKNOWN 0 996 #define SCTP_LAN_LOCAL 1 997 #define SCTP_LAN_INTERNET 2 998 999 #define SCTP_SEND_BUFFER_SPLITTING 0x00000001 1000 #define SCTP_RECV_BUFFER_SPLITTING 0x00000002 1001 1002 /* The system retains a cache of free chunks such to 1003 * cut down on calls the memory allocation system. There 1004 * is a per association limit of free items and a overall 1005 * system limit. If either one gets hit then the resource 1006 * stops being cached. 1007 */ 1008 1009 #define SCTP_DEF_ASOC_RESC_LIMIT 10 1010 #define SCTP_DEF_SYSTEM_RESC_LIMIT 1000 1011 1012 /*- 1013 * defines for socket lock states. 1014 * Used by __APPLE__ and SCTP_SO_LOCK_TESTING 1015 */ 1016 #define SCTP_SO_LOCKED 1 1017 #define SCTP_SO_NOT_LOCKED 0 1018 1019 1020 #define SCTP_HOLDS_LOCK 1 1021 #define SCTP_NOT_LOCKED 0 1022 1023 /*- 1024 * For address locks, do we hold the lock? 1025 */ 1026 #define SCTP_ADDR_LOCKED 1 1027 #define SCTP_ADDR_NOT_LOCKED 0 1028 1029 #define IN4_ISPRIVATE_ADDRESS(a) \ 1030 ((((uint8_t *)&(a)->s_addr)[0] == 10) || \ 1031 ((((uint8_t *)&(a)->s_addr)[0] == 172) && \ 1032 (((uint8_t *)&(a)->s_addr)[1] >= 16) && \ 1033 (((uint8_t *)&(a)->s_addr)[1] <= 32)) || \ 1034 ((((uint8_t *)&(a)->s_addr)[0] == 192) && \ 1035 (((uint8_t *)&(a)->s_addr)[1] == 168))) 1036 1037 #define IN4_ISLOOPBACK_ADDRESS(a) \ 1038 ((((uint8_t *)&(a)->s_addr)[0] == 127) && \ 1039 (((uint8_t *)&(a)->s_addr)[1] == 0) && \ 1040 (((uint8_t *)&(a)->s_addr)[2] == 0) && \ 1041 (((uint8_t *)&(a)->s_addr)[3] == 1)) 1042 1043 #define IN4_ISLINKLOCAL_ADDRESS(a) \ 1044 ((((uint8_t *)&(a)->s_addr)[0] == 169) && \ 1045 (((uint8_t *)&(a)->s_addr)[1] == 254)) 1046 1047 #if defined(__Userspace__) 1048 #if defined(__Userspace_os_Windows) 1049 #define SCTP_GETTIME_TIMEVAL(x) getwintimeofday(x) 1050 #define SCTP_GETPTIME_TIMEVAL(x) getwintimeofday(x) /* this doesn't seem to ever be used.. */ 1051 #else 1052 #define SCTP_GETTIME_TIMEVAL(x) gettimeofday(x, NULL) 1053 #define SCTP_GETPTIME_TIMEVAL(x) gettimeofday(x, NULL) 1054 #endif 1055 #endif 1056 1057 #if defined(_KERNEL) 1058 #define SCTP_GETTIME_TIMEVAL(x) (getmicrouptime(x)) 1059 #define SCTP_GETPTIME_TIMEVAL(x) (microuptime(x)) 1060 #endif 1061 1062 #if defined(_KERNEL) || defined(__Userspace__) 1063 #define sctp_sowwakeup(inp, so) \ 1064 do { \ 1065 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1066 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \ 1067 } else { \ 1068 sowwakeup(so); \ 1069 } \ 1070 } while (0) 1071 1072 #if defined(__FreeBSD__) || defined(__Windows__) || defined(__Userspace__) 1073 #define sctp_sowwakeup_locked(inp, so) \ 1074 do { \ 1075 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1076 SOCKBUF_UNLOCK(&((so)->so_snd)); \ 1077 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \ 1078 } else { \ 1079 sowwakeup_locked(so); \ 1080 } \ 1081 } while (0) 1082 #else 1083 #define sctp_sowwakeup_locked(inp, so) \ 1084 do { \ 1085 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1086 SOCKBUF_UNLOCK(&((so)->so_snd)); \ 1087 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \ 1088 } else { \ 1089 sowwakeup(so); \ 1090 } \ 1091 } while (0) 1092 #endif 1093 1094 #define sctp_sorwakeup(inp, so) \ 1095 do { \ 1096 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1097 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \ 1098 } else { \ 1099 sorwakeup(so); \ 1100 } \ 1101 } while (0) 1102 1103 #if defined(__FreeBSD__) || defined(__Windows__) || defined(__Userspace__) 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 #else 1114 1115 #define sctp_sorwakeup_locked(inp, so) \ 1116 do { \ 1117 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1118 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \ 1119 SOCKBUF_UNLOCK(&((so)->so_rcv)); \ 1120 } else { \ 1121 sorwakeup(so); \ 1122 } \ 1123 } while (0) 1124 #endif 1125 1126 #endif /* _KERNEL || __Userspace__*/ 1127 #endif 1128