1 /*- 2 * Copyright (c) 2001-2008, 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 /* For freebsd we cannot bind the port at 41 * startup. Otherwise what will happen is 42 * we really won't be bound. The user must 43 * put it into the sysctl... or we need 44 * to build a special timer for this to allow 45 * us to wait 1 second or so after the system 46 * comes up. 47 */ 48 #define SCTP_OVER_UDP_TUNNELING_PORT 0 49 /* Number of packets to get before sack sent by default */ 50 #define SCTP_DEFAULT_SACK_FREQ 2 51 52 /* Address limit - This variable is calculated 53 * based on an 65535 byte max ip packet. We take out 100 bytes 54 * for the cookie, 40 bytes for a v6 header and 32 55 * bytes for the init structure. A second init structure 56 * for the init-ack and then finally a third one for the 57 * imbedded init. This yeilds 100+40+(3 * 32) = 236 bytes. 58 * This leaves 65299 bytes for addresses. We throw out the 299 bytes. 59 * Now whatever we send in the INIT() we need to allow to get back in the 60 * INIT-ACK plus all the values from INIT and INIT-ACK 61 * listed in the cookie. Plus we need some overhead for 62 * maybe copied parameters in the COOKIE. If we 63 * allow 1080 addresses, and each side has 1080 V6 addresses 64 * that will be 21600 bytes. In the INIT-ACK we will 65 * see the INIT-ACK 21600 + 43200 in the cookie. This leaves 66 * about 500 bytes slack for misc things in the cookie. 67 */ 68 #define SCTP_ADDRESS_LIMIT 1080 69 70 /* We need at least 2k of space for us, inits 71 * larger than that lets abort. 72 */ 73 #define SCTP_LARGEST_INIT_ACCEPTED (65535 - 2048) 74 75 /* Number of addresses where we just skip the counting */ 76 #define SCTP_COUNT_LIMIT 40 77 78 #define SCTP_ZERO_COPY_TICK_DELAY (((100 * hz) + 999) / 1000) 79 #define SCTP_ZERO_COPY_SENDQ_TICK_DELAY (((100 * hz) + 999) / 1000) 80 81 /* Number of ticks to delay before running 82 * iterator on an address change. 83 */ 84 #define SCTP_ADDRESS_TICK_DELAY 2 85 86 #define SCTP_VERSION_STRING "KAME-BSD 1.1" 87 /* #define SCTP_AUDITING_ENABLED 1 used for debug/auditing */ 88 #define SCTP_AUDIT_SIZE 256 89 90 /* temporary disabled since it does not work with VNET. */ 91 #if 0 92 #define SCTP_USE_THREAD_BASED_ITERATOR 1 93 #endif 94 95 #define SCTP_KTRHEAD_NAME "sctp_iterator" 96 #define SCTP_KTHREAD_PAGES 0 97 98 99 /* If you support Multi-VRF how big to 100 * make the initial array of VRF's to. 101 */ 102 #define SCTP_DEFAULT_VRF_SIZE 4 103 104 /* constants for rto calc */ 105 #define sctp_align_safe_nocopy 0 106 #define sctp_align_unsafe_makecopy 1 107 108 /* JRS - Values defined for the HTCP algorithm */ 109 #define ALPHA_BASE (1<<7) /* 1.0 with shift << 7 */ 110 #define BETA_MIN (1<<6) /* 0.5 with shift << 7 */ 111 #define BETA_MAX 102 /* 0.8 with shift << 7 */ 112 113 /* Places that CWND log can happen from */ 114 #define SCTP_CWND_LOG_FROM_FR 1 115 #define SCTP_CWND_LOG_FROM_RTX 2 116 #define SCTP_CWND_LOG_FROM_BRST 3 117 #define SCTP_CWND_LOG_FROM_SS 4 118 #define SCTP_CWND_LOG_FROM_CA 5 119 #define SCTP_CWND_LOG_FROM_SAT 6 120 #define SCTP_BLOCK_LOG_INTO_BLK 7 121 #define SCTP_BLOCK_LOG_OUTOF_BLK 8 122 #define SCTP_BLOCK_LOG_CHECK 9 123 #define SCTP_STR_LOG_FROM_INTO_STRD 10 124 #define SCTP_STR_LOG_FROM_IMMED_DEL 11 125 #define SCTP_STR_LOG_FROM_INSERT_HD 12 126 #define SCTP_STR_LOG_FROM_INSERT_MD 13 127 #define SCTP_STR_LOG_FROM_INSERT_TL 14 128 #define SCTP_STR_LOG_FROM_MARK_TSN 15 129 #define SCTP_STR_LOG_FROM_EXPRS_DEL 16 130 #define SCTP_FR_LOG_BIGGEST_TSNS 17 131 #define SCTP_FR_LOG_STRIKE_TEST 18 132 #define SCTP_FR_LOG_STRIKE_CHUNK 19 133 #define SCTP_FR_T3_TIMEOUT 20 134 #define SCTP_MAP_PREPARE_SLIDE 21 135 #define SCTP_MAP_SLIDE_FROM 22 136 #define SCTP_MAP_SLIDE_RESULT 23 137 #define SCTP_MAP_SLIDE_CLEARED 24 138 #define SCTP_MAP_SLIDE_NONE 25 139 #define SCTP_FR_T3_MARK_TIME 26 140 #define SCTP_FR_T3_MARKED 27 141 #define SCTP_FR_T3_STOPPED 28 142 #define SCTP_FR_MARKED 30 143 #define SCTP_CWND_LOG_NOADV_SS 31 144 #define SCTP_CWND_LOG_NOADV_CA 32 145 #define SCTP_MAX_BURST_APPLIED 33 146 #define SCTP_MAX_IFP_APPLIED 34 147 #define SCTP_MAX_BURST_ERROR_STOP 35 148 #define SCTP_INCREASE_PEER_RWND 36 149 #define SCTP_DECREASE_PEER_RWND 37 150 #define SCTP_SET_PEER_RWND_VIA_SACK 38 151 #define SCTP_LOG_MBCNT_INCREASE 39 152 #define SCTP_LOG_MBCNT_DECREASE 40 153 #define SCTP_LOG_MBCNT_CHKSET 41 154 #define SCTP_LOG_NEW_SACK 42 155 #define SCTP_LOG_TSN_ACKED 43 156 #define SCTP_LOG_TSN_REVOKED 44 157 #define SCTP_LOG_LOCK_TCB 45 158 #define SCTP_LOG_LOCK_INP 46 159 #define SCTP_LOG_LOCK_SOCK 47 160 #define SCTP_LOG_LOCK_SOCKBUF_R 48 161 #define SCTP_LOG_LOCK_SOCKBUF_S 49 162 #define SCTP_LOG_LOCK_CREATE 50 163 #define SCTP_LOG_INITIAL_RTT 51 164 #define SCTP_LOG_RTTVAR 52 165 #define SCTP_LOG_SBALLOC 53 166 #define SCTP_LOG_SBFREE 54 167 #define SCTP_LOG_SBRESULT 55 168 #define SCTP_FR_DUPED 56 169 #define SCTP_FR_MARKED_EARLY 57 170 #define SCTP_FR_CWND_REPORT 58 171 #define SCTP_FR_CWND_REPORT_START 59 172 #define SCTP_FR_CWND_REPORT_STOP 60 173 #define SCTP_CWND_LOG_FROM_SEND 61 174 #define SCTP_CWND_INITIALIZATION 62 175 #define SCTP_CWND_LOG_FROM_T3 63 176 #define SCTP_CWND_LOG_FROM_SACK 64 177 #define SCTP_CWND_LOG_NO_CUMACK 65 178 #define SCTP_CWND_LOG_FROM_RESEND 66 179 #define SCTP_FR_LOG_CHECK_STRIKE 67 180 #define SCTP_SEND_NOW_COMPLETES 68 181 #define SCTP_CWND_LOG_FILL_OUTQ_CALLED 69 182 #define SCTP_CWND_LOG_FILL_OUTQ_FILLS 70 183 #define SCTP_LOG_FREE_SENT 71 184 #define SCTP_NAGLE_APPLIED 72 185 #define SCTP_NAGLE_SKIPPED 73 186 #define SCTP_WAKESND_FROM_SACK 74 187 #define SCTP_WAKESND_FROM_FWDTSN 75 188 #define SCTP_NOWAKE_FROM_SACK 76 189 #define SCTP_CWNDLOG_PRESEND 77 190 #define SCTP_CWNDLOG_ENDSEND 78 191 #define SCTP_AT_END_OF_SACK 79 192 #define SCTP_REASON_FOR_SC 80 193 #define SCTP_BLOCK_LOG_INTO_BLKA 81 194 #define SCTP_ENTER_USER_RECV 82 195 #define SCTP_USER_RECV_SACKS 83 196 #define SCTP_SORECV_BLOCKSA 84 197 #define SCTP_SORECV_BLOCKSB 85 198 #define SCTP_SORECV_DONE 86 199 #define SCTP_SACK_RWND_UPDATE 87 200 #define SCTP_SORECV_ENTER 88 201 #define SCTP_SORECV_ENTERPL 89 202 #define SCTP_MBUF_INPUT 90 203 #define SCTP_MBUF_IALLOC 91 204 #define SCTP_MBUF_IFREE 92 205 #define SCTP_MBUF_ICOPY 93 206 #define SCTP_MBUF_SPLIT 94 207 #define SCTP_SORCV_FREECTL 95 208 #define SCTP_SORCV_DOESCPY 96 209 #define SCTP_SORCV_DOESLCK 97 210 #define SCTP_SORCV_DOESADJ 98 211 #define SCTP_SORCV_BOTWHILE 99 212 #define SCTP_SORCV_PASSBF 100 213 #define SCTP_SORCV_ADJD 101 214 #define SCTP_UNKNOWN_MAX 102 215 #define SCTP_RANDY_STUFF 103 216 #define SCTP_RANDY_STUFF1 104 217 #define SCTP_STRMOUT_LOG_ASSIGN 105 218 #define SCTP_STRMOUT_LOG_SEND 106 219 #define SCTP_FLIGHT_LOG_DOWN_CA 107 220 #define SCTP_FLIGHT_LOG_UP 108 221 #define SCTP_FLIGHT_LOG_DOWN_GAP 109 222 #define SCTP_FLIGHT_LOG_DOWN_RSND 110 223 #define SCTP_FLIGHT_LOG_UP_RSND 111 224 #define SCTP_FLIGHT_LOG_DOWN_RSND_TO 112 225 #define SCTP_FLIGHT_LOG_DOWN_WP 113 226 #define SCTP_FLIGHT_LOG_UP_REVOKE 114 227 #define SCTP_FLIGHT_LOG_DOWN_PDRP 115 228 #define SCTP_FLIGHT_LOG_DOWN_PMTU 116 229 #define SCTP_SACK_LOG_NORMAL 117 230 #define SCTP_SACK_LOG_EXPRESS 118 231 #define SCTP_MAP_TSN_ENTERS 119 232 #define SCTP_THRESHOLD_CLEAR 120 233 #define SCTP_THRESHOLD_INCR 121 234 #define SCTP_FLIGHT_LOG_DWN_WP_FWD 122 235 #define SCTP_FWD_TSN_CHECK 123 236 #define SCTP_LOG_MAX_TYPES 124 237 /* 238 * To turn on various logging, you must first enable 'options KTR' and 239 * you might want to bump the entires 'options KTR_ENTRIES=80000'. 240 * To get something to log you define one of the logging defines. 241 * (see LINT). 242 * 243 * This gets the compile in place, but you still need to turn the 244 * logging flag on too in the sysctl (see in sctp.h). 245 */ 246 247 #define SCTP_LOG_EVENT_UNKNOWN 0 248 #define SCTP_LOG_EVENT_CWND 1 249 #define SCTP_LOG_EVENT_BLOCK 2 250 #define SCTP_LOG_EVENT_STRM 3 251 #define SCTP_LOG_EVENT_FR 4 252 #define SCTP_LOG_EVENT_MAP 5 253 #define SCTP_LOG_EVENT_MAXBURST 6 254 #define SCTP_LOG_EVENT_RWND 7 255 #define SCTP_LOG_EVENT_MBCNT 8 256 #define SCTP_LOG_EVENT_SACK 9 257 #define SCTP_LOG_LOCK_EVENT 10 258 #define SCTP_LOG_EVENT_RTT 11 259 #define SCTP_LOG_EVENT_SB 12 260 #define SCTP_LOG_EVENT_NAGLE 13 261 #define SCTP_LOG_EVENT_WAKE 14 262 #define SCTP_LOG_MISC_EVENT 15 263 #define SCTP_LOG_EVENT_CLOSE 16 264 #define SCTP_LOG_EVENT_MBUF 17 265 #define SCTP_LOG_CHUNK_PROC 18 266 #define SCTP_LOG_ERROR_RET 19 267 268 #define SCTP_LOG_MAX_EVENT 20 269 270 #define SCTP_LOCK_UNKNOWN 2 271 272 273 /* number of associations by default for zone allocation */ 274 #define SCTP_MAX_NUM_OF_ASOC 40000 275 /* how many addresses per assoc remote and local */ 276 #define SCTP_SCALE_FOR_ADDR 2 277 278 /* default AUTO_ASCONF mode enable(1)/disable(0) value (sysctl) */ 279 #if defined (__APPLE__) && !defined(SCTP_APPLE_AUTO_ASCONF) 280 #define SCTP_DEFAULT_AUTO_ASCONF 0 281 #else 282 #define SCTP_DEFAULT_AUTO_ASCONF 1 283 #endif 284 285 /* default MULTIPLE_ASCONF mode enable(1)/disable(0) value (sysctl) */ 286 #define SCTP_DEFAULT_MULTIPLE_ASCONFS 0 287 288 /* default MOBILITY_BASE mode enable(1)/disable(0) value (sysctl) */ 289 #if defined (__APPLE__) && !defined(SCTP_APPLE_MOBILITY_BASE) 290 #define SCTP_DEFAULT_MOBILITY_BASE 0 291 #else 292 #define SCTP_DEFAULT_MOBILITY_BASE 0 293 #endif 294 295 /* default MOBILITY_FASTHANDOFF mode enable(1)/disable(0) value (sysctl) */ 296 #if defined (__APPLE__) && !defined(SCTP_APPLE_MOBILITY_FASTHANDOFF) 297 #define SCTP_DEFAULT_MOBILITY_FASTHANDOFF 0 298 #else 299 #define SCTP_DEFAULT_MOBILITY_FASTHANDOFF 0 300 #endif 301 302 /* 303 * Theshold for rwnd updates, we have to read (sb_hiwat >> 304 * SCTP_RWND_HIWAT_SHIFT) before we will look to see if we need to send a 305 * window update sack. When we look, we compare the last rwnd we sent vs the 306 * current rwnd. It too must be greater than this value. Using 3 divdes the 307 * hiwat by 8, so for 200k rwnd we need to read 24k. For a 64k rwnd we need 308 * to read 8k. This seems about right.. I hope :-D.. we do set a 309 * min of a MTU on it so if the rwnd is real small we will insist 310 * on a full MTU of 1500 bytes. 311 */ 312 #define SCTP_RWND_HIWAT_SHIFT 3 313 314 /* How much of the rwnd must the 315 * message be taking up to start partial delivery. 316 * We calculate this by shifing the hi_water (recv_win) 317 * left the following .. set to 1, when a message holds 318 * 1/2 the rwnd. If we set it to 2 when a message holds 319 * 1/4 the rwnd...etc.. 320 */ 321 322 #define SCTP_PARTIAL_DELIVERY_SHIFT 1 323 324 /* 325 * default HMAC for cookies, etc... use one of the AUTH HMAC id's 326 * SCTP_HMAC is the HMAC_ID to use 327 * SCTP_SIGNATURE_SIZE is the digest length 328 */ 329 #define SCTP_HMAC SCTP_AUTH_HMAC_ID_SHA1 330 #define SCTP_SIGNATURE_SIZE SCTP_AUTH_DIGEST_LEN_SHA1 331 #define SCTP_SIGNATURE_ALOC_SIZE SCTP_SIGNATURE_SIZE 332 333 /* 334 * the SCTP protocol signature this includes the version number encoded in 335 * the last 4 bits of the signature. 336 */ 337 #define PROTO_SIGNATURE_A 0x30000000 338 #define SCTP_VERSION_NUMBER 0x3 339 340 #define MAX_TSN 0xffffffff 341 #define MAX_SEQ 0xffff 342 343 /* how many executions every N tick's */ 344 #define SCTP_ITERATOR_MAX_AT_ONCE 20 345 346 /* number of clock ticks between iterator executions */ 347 #define SCTP_ITERATOR_TICKS 1 348 349 /* 350 * option: If you comment out the following you will receive the old behavior 351 * of obeying cwnd for the fast retransmit algorithm. With this defined a FR 352 * happens right away with-out waiting for the flightsize to drop below the 353 * cwnd value (which is reduced by the FR to 1/2 the inflight packets). 354 */ 355 #define SCTP_IGNORE_CWND_ON_FR 1 356 357 /* 358 * Adds implementors guide behavior to only use newest highest update in SACK 359 * gap ack's to figure out if you need to stroke a chunk for FR. 360 */ 361 #define SCTP_NO_FR_UNLESS_SEGMENT_SMALLER 1 362 363 /* default max I can burst out after a fast retransmit */ 364 #define SCTP_DEF_MAX_BURST 4 365 /* IP hdr (20/40) + 12+2+2 (enet) + sctp common 12 */ 366 #define SCTP_FIRST_MBUF_RESV 68 367 /* Packet transmit states in the sent field */ 368 #define SCTP_DATAGRAM_UNSENT 0 369 #define SCTP_DATAGRAM_SENT 1 370 #define SCTP_DATAGRAM_RESEND1 2 /* not used (in code, but may 371 * hit this value) */ 372 #define SCTP_DATAGRAM_RESEND2 3 /* not used (in code, but may 373 * hit this value) */ 374 #define SCTP_DATAGRAM_RESEND 4 375 #define SCTP_DATAGRAM_ACKED 10010 376 /* EY 377 * If a tsn is nr-gapped, its first tagged as NR_MARKED and then NR_ACKED 378 * When yet another nr-sack is received, if a particular TSN's sent tag 379 * is observed to be NR_ACKED after gap-ack info is processed, this implies 380 * that particular TSN is reneged 381 */ 382 #define SCTP_DATAGRAM_NR_ACKED 10020 383 #define SCTP_DATAGRAM_NR_MARKED 20005 384 #define SCTP_DATAGRAM_MARKED 20010 385 #define SCTP_FORWARD_TSN_SKIP 30010 386 387 /* chunk output send from locations */ 388 #define SCTP_OUTPUT_FROM_USR_SEND 0 389 #define SCTP_OUTPUT_FROM_T3 1 390 #define SCTP_OUTPUT_FROM_INPUT_ERROR 2 391 #define SCTP_OUTPUT_FROM_CONTROL_PROC 3 392 #define SCTP_OUTPUT_FROM_SACK_TMR 4 393 #define SCTP_OUTPUT_FROM_SHUT_TMR 5 394 #define SCTP_OUTPUT_FROM_HB_TMR 6 395 #define SCTP_OUTPUT_FROM_SHUT_ACK_TMR 7 396 #define SCTP_OUTPUT_FROM_ASCONF_TMR 8 397 #define SCTP_OUTPUT_FROM_STRRST_TMR 9 398 #define SCTP_OUTPUT_FROM_AUTOCLOSE_TMR 10 399 #define SCTP_OUTPUT_FROM_EARLY_FR_TMR 11 400 #define SCTP_OUTPUT_FROM_STRRST_REQ 12 401 #define SCTP_OUTPUT_FROM_USR_RCVD 13 402 #define SCTP_OUTPUT_FROM_COOKIE_ACK 14 403 #define SCTP_OUTPUT_FROM_DRAIN 15 404 #define SCTP_OUTPUT_FROM_CLOSING 16 405 /* SCTP chunk types are moved sctp.h for application (NAT, FW) use */ 406 407 /* align to 32-bit sizes */ 408 #define SCTP_SIZE32(x) ((((x)+3) >> 2) << 2) 409 410 #define IS_SCTP_CONTROL(a) ((a)->chunk_type != SCTP_DATA) 411 #define IS_SCTP_DATA(a) ((a)->chunk_type == SCTP_DATA) 412 413 414 /* SCTP parameter types */ 415 /*************0x0000 series*************/ 416 #define SCTP_HEARTBEAT_INFO 0x0001 417 #define SCTP_IPV4_ADDRESS 0x0005 418 #define SCTP_IPV6_ADDRESS 0x0006 419 #define SCTP_STATE_COOKIE 0x0007 420 #define SCTP_UNRECOG_PARAM 0x0008 421 #define SCTP_COOKIE_PRESERVE 0x0009 422 #define SCTP_HOSTNAME_ADDRESS 0x000b 423 #define SCTP_SUPPORTED_ADDRTYPE 0x000c 424 425 /* draft-ietf-stewart-tsvwg-strreset-xxx */ 426 #define SCTP_STR_RESET_OUT_REQUEST 0x000d 427 #define SCTP_STR_RESET_IN_REQUEST 0x000e 428 #define SCTP_STR_RESET_TSN_REQUEST 0x000f 429 #define SCTP_STR_RESET_RESPONSE 0x0010 430 #define SCTP_STR_RESET_ADD_STREAMS 0x0011 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 /* behave-nat-draft */ 469 #define SCTP_HAS_NAT_SUPPORT 0xc007 470 #define SCTP_NAT_VTAGS 0xc008 471 472 /* Notification error codes */ 473 #define SCTP_NOTIFY_DATAGRAM_UNSENT 0x0001 474 #define SCTP_NOTIFY_DATAGRAM_SENT 0x0002 475 #define SCTP_FAILED_THRESHOLD 0x0004 476 #define SCTP_HEARTBEAT_SUCCESS 0x0008 477 #define SCTP_RESPONSE_TO_USER_REQ 0x0010 478 #define SCTP_INTERNAL_ERROR 0x0020 479 #define SCTP_SHUTDOWN_GUARD_EXPIRES 0x0040 480 #define SCTP_RECEIVED_SACK 0x0080 481 #define SCTP_PEER_FAULTY 0x0100 482 #define SCTP_ICMP_REFUSED 0x0200 483 484 /* bits for TOS field */ 485 #define SCTP_ECT0_BIT 0x02 486 #define SCTP_ECT1_BIT 0x01 487 #define SCTP_CE_BITS 0x03 488 489 /* below turns off above */ 490 #define SCTP_FLEXIBLE_ADDRESS 0x20 491 #define SCTP_NO_HEARTBEAT 0x40 492 493 /* mask to get sticky */ 494 #define SCTP_STICKY_OPTIONS_MASK 0x0c 495 496 497 /* 498 * SCTP states for internal state machine XXX (should match "user" values) 499 */ 500 #define SCTP_STATE_EMPTY 0x0000 501 #define SCTP_STATE_INUSE 0x0001 502 #define SCTP_STATE_COOKIE_WAIT 0x0002 503 #define SCTP_STATE_COOKIE_ECHOED 0x0004 504 #define SCTP_STATE_OPEN 0x0008 505 #define SCTP_STATE_SHUTDOWN_SENT 0x0010 506 #define SCTP_STATE_SHUTDOWN_RECEIVED 0x0020 507 #define SCTP_STATE_SHUTDOWN_ACK_SENT 0x0040 508 #define SCTP_STATE_SHUTDOWN_PENDING 0x0080 509 #define SCTP_STATE_CLOSED_SOCKET 0x0100 510 #define SCTP_STATE_ABOUT_TO_BE_FREED 0x0200 511 #define SCTP_STATE_PARTIAL_MSG_LEFT 0x0400 512 #define SCTP_STATE_WAS_ABORTED 0x0800 513 #define SCTP_STATE_MASK 0x007f 514 515 #define SCTP_GET_STATE(asoc) ((asoc)->state & SCTP_STATE_MASK) 516 #define SCTP_SET_STATE(asoc, newstate) ((asoc)->state = ((asoc)->state & ~SCTP_STATE_MASK) | newstate) 517 #define SCTP_CLEAR_SUBSTATE(asoc, substate) ((asoc)->state &= ~substate) 518 #define SCTP_ADD_SUBSTATE(asoc, substate) ((asoc)->state |= substate) 519 520 /* SCTP reachability state for each address */ 521 #define SCTP_ADDR_REACHABLE 0x001 522 #define SCTP_ADDR_NOT_REACHABLE 0x002 523 #define SCTP_ADDR_NOHB 0x004 524 #define SCTP_ADDR_BEING_DELETED 0x008 525 #define SCTP_ADDR_NOT_IN_ASSOC 0x010 526 #define SCTP_ADDR_WAS_PRIMARY 0x020 527 #define SCTP_ADDR_SWITCH_PRIMARY 0x040 528 #define SCTP_ADDR_OUT_OF_SCOPE 0x080 529 #define SCTP_ADDR_DOUBLE_SWITCH 0x100 530 #define SCTP_ADDR_UNCONFIRMED 0x200 531 #define SCTP_ADDR_REQ_PRIMARY 0x400 532 /* JRS 5/13/07 - Added potentially failed state for CMT PF */ 533 #define SCTP_ADDR_PF 0x800 534 #define SCTP_REACHABLE_MASK 0x203 535 536 /* bound address types (e.g. valid address types to allow) */ 537 #define SCTP_BOUND_V6 0x01 538 #define SCTP_BOUND_V4 0x02 539 540 /* 541 * what is the default number of mbufs in a chain I allow before switching to 542 * a cluster 543 */ 544 #define SCTP_DEFAULT_MBUFS_IN_CHAIN 5 545 546 /* How long a cookie lives in milli-seconds */ 547 #define SCTP_DEFAULT_COOKIE_LIFE 60000 548 549 /* resource limit of streams */ 550 #define MAX_SCTP_STREAMS 2048 551 552 /* Maximum the mapping array will grow to (TSN mapping array) */ 553 #define SCTP_MAPPING_ARRAY 512 554 555 /* size of the inital malloc on the mapping array */ 556 #define SCTP_INITIAL_MAPPING_ARRAY 16 557 /* how much we grow the mapping array each call */ 558 #define SCTP_MAPPING_ARRAY_INCR 32 559 /* EY 05/13/08 - nr_sack version of the previous 3 constants */ 560 /* Maximum the nr mapping array will grow to (TSN mapping array) */ 561 #define SCTP_NR_MAPPING_ARRAY 512 562 /* size of the inital malloc on the nr mapping array */ 563 #define SCTP_INITIAL_NR_MAPPING_ARRAY 16 564 /* how much we grow the nr mapping array each call */ 565 #define SCTP_NR_MAPPING_ARRAY_INCR 32 566 /* 567 * Here we define the timer types used by the implementation as arguments in 568 * the set/get timer type calls. 569 */ 570 #define SCTP_TIMER_INIT 0 571 #define SCTP_TIMER_RECV 1 572 #define SCTP_TIMER_SEND 2 573 #define SCTP_TIMER_HEARTBEAT 3 574 #define SCTP_TIMER_PMTU 4 575 #define SCTP_TIMER_MAXSHUTDOWN 5 576 #define SCTP_TIMER_SIGNATURE 6 577 /* 578 * number of timer types in the base SCTP structure used in the set/get and 579 * has the base default. 580 */ 581 #define SCTP_NUM_TMRS 7 582 583 /* timer types */ 584 #define SCTP_TIMER_TYPE_NONE 0 585 #define SCTP_TIMER_TYPE_SEND 1 586 #define SCTP_TIMER_TYPE_INIT 2 587 #define SCTP_TIMER_TYPE_RECV 3 588 #define SCTP_TIMER_TYPE_SHUTDOWN 4 589 #define SCTP_TIMER_TYPE_HEARTBEAT 5 590 #define SCTP_TIMER_TYPE_COOKIE 6 591 #define SCTP_TIMER_TYPE_NEWCOOKIE 7 592 #define SCTP_TIMER_TYPE_PATHMTURAISE 8 593 #define SCTP_TIMER_TYPE_SHUTDOWNACK 9 594 #define SCTP_TIMER_TYPE_ASCONF 10 595 #define SCTP_TIMER_TYPE_SHUTDOWNGUARD 11 596 #define SCTP_TIMER_TYPE_AUTOCLOSE 12 597 #define SCTP_TIMER_TYPE_EVENTWAKE 13 598 #define SCTP_TIMER_TYPE_STRRESET 14 599 #define SCTP_TIMER_TYPE_INPKILL 15 600 #define SCTP_TIMER_TYPE_ITERATOR 16 601 #define SCTP_TIMER_TYPE_EARLYFR 17 602 #define SCTP_TIMER_TYPE_ASOCKILL 18 603 #define SCTP_TIMER_TYPE_ADDR_WQ 19 604 #define SCTP_TIMER_TYPE_ZERO_COPY 20 605 #define SCTP_TIMER_TYPE_ZCOPY_SENDQ 21 606 #define SCTP_TIMER_TYPE_PRIM_DELETED 22 607 /* add new timers here - and increment LAST */ 608 #define SCTP_TIMER_TYPE_LAST 23 609 610 #define SCTP_IS_TIMER_TYPE_VALID(t) (((t) > SCTP_TIMER_TYPE_NONE) && \ 611 ((t) < SCTP_TIMER_TYPE_LAST)) 612 613 614 615 /* max number of TSN's dup'd that I will hold */ 616 #define SCTP_MAX_DUP_TSNS 20 617 618 /* 619 * Here we define the types used when setting the retry amounts. 620 */ 621 /* How many drop re-attempts we make on INIT/COOKIE-ECHO */ 622 #define SCTP_RETRY_DROPPED_THRESH 4 623 624 /* 625 * Maxmium number of chunks a single association can have on it. Note that 626 * this is a squishy number since the count can run over this if the user 627 * sends a large message down .. the fragmented chunks don't count until 628 * AFTER the message is on queue.. it would be the next send that blocks 629 * things. This number will get tuned up at boot in the sctp_init and use the 630 * number of clusters as a base. This way high bandwidth environments will 631 * not get impacted by the lower bandwidth sending a bunch of 1 byte chunks 632 */ 633 #define SCTP_ASOC_MAX_CHUNKS_ON_QUEUE 512 634 635 636 /* The conversion from time to ticks and vice versa is done by rounding 637 * upwards. This way we can test in the code the time to be positive and 638 * know that this corresponds to a positive number of ticks. 639 */ 640 #define MSEC_TO_TICKS(x) ((hz == 1000) ? x : ((((x) * hz) + 999) / 1000)) 641 #define TICKS_TO_MSEC(x) ((hz == 1000) ? x : ((((x) * 1000) + (hz - 1)) / hz)) 642 643 #define SEC_TO_TICKS(x) ((x) * hz) 644 #define TICKS_TO_SEC(x) (((x) + (hz - 1)) / hz) 645 646 /* 647 * Basically the minimum amount of time before I do a early FR. Making this 648 * value to low will cause duplicate retransmissions. 649 */ 650 #define SCTP_MINFR_MSEC_TIMER 250 651 /* The floor this value is allowed to fall to when starting a timer. */ 652 #define SCTP_MINFR_MSEC_FLOOR 20 653 654 /* init timer def = 1 sec */ 655 #define SCTP_INIT_SEC 1 656 657 /* send timer def = 1 seconds */ 658 #define SCTP_SEND_SEC 1 659 660 /* recv timer def = 200ms */ 661 #define SCTP_RECV_MSEC 200 662 663 /* 30 seconds + RTO (in ms) */ 664 #define SCTP_HB_DEFAULT_MSEC 30000 665 666 /* Max time I will wait for Shutdown to complete */ 667 #define SCTP_DEF_MAX_SHUTDOWN_SEC 180 668 669 670 /* 671 * This is how long a secret lives, NOT how long a cookie lives how many 672 * ticks the current secret will live. 673 */ 674 #define SCTP_DEFAULT_SECRET_LIFE_SEC 3600 675 676 #define SCTP_RTO_UPPER_BOUND (60000) /* 60 sec in ms */ 677 #define SCTP_RTO_UPPER_BOUND_SEC 60 /* for the init timer */ 678 #define SCTP_RTO_LOWER_BOUND (1000) /* 1 sec in ms */ 679 #define SCTP_RTO_INITIAL (3000) /* 3 sec in ms */ 680 681 682 #define SCTP_INP_KILL_TIMEOUT 20/* number of ms to retry kill of inpcb */ 683 #define SCTP_ASOC_KILL_TIMEOUT 10 /* number of ms to retry kill of inpcb */ 684 685 #define SCTP_DEF_MAX_INIT 8 686 #define SCTP_DEF_MAX_SEND 10 687 #define SCTP_DEF_MAX_PATH_RTX 5 688 689 #define SCTP_DEF_PMTU_RAISE_SEC 600 /* 10 min between raise attempts */ 690 691 692 /* How many streams I request initally by default */ 693 #define SCTP_OSTREAM_INITIAL 10 694 695 /* 696 * How many smallest_mtu's need to increase before a window update sack is 697 * sent (should be a power of 2). 698 */ 699 /* Send window update (incr * this > hiwat). Should be a power of 2 */ 700 #define SCTP_MINIMAL_RWND (4096) /* minimal rwnd */ 701 702 #define SCTP_ADDRMAX 24 703 704 /* SCTP DEBUG Switch parameters */ 705 #define SCTP_DEBUG_TIMER1 0x00000001 706 #define SCTP_DEBUG_TIMER2 0x00000002 /* unused */ 707 #define SCTP_DEBUG_TIMER3 0x00000004 /* unused */ 708 #define SCTP_DEBUG_TIMER4 0x00000008 709 #define SCTP_DEBUG_OUTPUT1 0x00000010 710 #define SCTP_DEBUG_OUTPUT2 0x00000020 711 #define SCTP_DEBUG_OUTPUT3 0x00000040 712 #define SCTP_DEBUG_OUTPUT4 0x00000080 713 #define SCTP_DEBUG_UTIL1 0x00000100 714 #define SCTP_DEBUG_UTIL2 0x00000200 /* unused */ 715 #define SCTP_DEBUG_AUTH1 0x00000400 716 #define SCTP_DEBUG_AUTH2 0x00000800 /* unused */ 717 #define SCTP_DEBUG_INPUT1 0x00001000 718 #define SCTP_DEBUG_INPUT2 0x00002000 719 #define SCTP_DEBUG_INPUT3 0x00004000 720 #define SCTP_DEBUG_INPUT4 0x00008000 /* unused */ 721 #define SCTP_DEBUG_ASCONF1 0x00010000 722 #define SCTP_DEBUG_ASCONF2 0x00020000 723 #define SCTP_DEBUG_OUTPUT5 0x00040000 /* unused */ 724 #define SCTP_DEBUG_XXX 0x00080000 /* unused */ 725 #define SCTP_DEBUG_PCB1 0x00100000 726 #define SCTP_DEBUG_PCB2 0x00200000 /* unused */ 727 #define SCTP_DEBUG_PCB3 0x00400000 728 #define SCTP_DEBUG_PCB4 0x00800000 729 #define SCTP_DEBUG_INDATA1 0x01000000 730 #define SCTP_DEBUG_INDATA2 0x02000000 /* unused */ 731 #define SCTP_DEBUG_INDATA3 0x04000000 /* unused */ 732 #define SCTP_DEBUG_CRCOFFLOAD 0x08000000 /* unused */ 733 #define SCTP_DEBUG_USRREQ1 0x10000000 /* unused */ 734 #define SCTP_DEBUG_USRREQ2 0x20000000 /* unused */ 735 #define SCTP_DEBUG_PEEL1 0x40000000 736 #define SCTP_DEBUG_XXXXX 0x80000000 /* unused */ 737 #define SCTP_DEBUG_ALL 0x7ff3ffff 738 #define SCTP_DEBUG_NOISY 0x00040000 739 740 /* What sender needs to see to avoid SWS or we consider peers rwnd 0 */ 741 #define SCTP_SWS_SENDER_DEF 1420 742 743 /* 744 * SWS is scaled to the sb_hiwat of the socket. A value of 2 is hiwat/4, 1 745 * would be hiwat/2 etc. 746 */ 747 /* What receiver needs to see in sockbuf or we tell peer its 1 */ 748 #define SCTP_SWS_RECEIVER_DEF 3000 749 750 #define SCTP_INITIAL_CWND 4380 751 752 #define SCTP_DEFAULT_MTU 1500 /* emergency default MTU */ 753 /* amount peer is obligated to have in rwnd or I will abort */ 754 #define SCTP_MIN_RWND 1500 755 756 #define SCTP_DEFAULT_MAXSEGMENT 65535 757 758 #define SCTP_CHUNK_BUFFER_SIZE 512 759 #define SCTP_PARAM_BUFFER_SIZE 512 760 761 /* small chunk store for looking at chunk_list in auth */ 762 #define SCTP_SMALL_CHUNK_STORE 260 763 764 #define SCTP_DEFAULT_MINSEGMENT 512 /* MTU size ... if no mtu disc */ 765 #define SCTP_HOW_MANY_SECRETS 2 /* how many secrets I keep */ 766 767 #define SCTP_NUMBER_OF_SECRETS 8 /* or 8 * 4 = 32 octets */ 768 #define SCTP_SECRET_SIZE 32 /* number of octets in a 256 bits */ 769 770 771 /* 772 * SCTP upper layer notifications 773 */ 774 #define SCTP_NOTIFY_ASSOC_UP 1 775 #define SCTP_NOTIFY_ASSOC_DOWN 2 776 #define SCTP_NOTIFY_INTERFACE_DOWN 3 777 #define SCTP_NOTIFY_INTERFACE_UP 4 778 #define SCTP_NOTIFY_DG_FAIL 5 779 #define SCTP_NOTIFY_STRDATA_ERR 6 780 #define SCTP_NOTIFY_ASSOC_ABORTED 7 781 #define SCTP_NOTIFY_PEER_OPENED_STREAM 8 782 #define SCTP_NOTIFY_STREAM_OPENED_OK 9 783 #define SCTP_NOTIFY_ASSOC_RESTART 10 784 #define SCTP_NOTIFY_HB_RESP 11 785 #define SCTP_NOTIFY_ASCONF_SUCCESS 12 786 #define SCTP_NOTIFY_ASCONF_FAILED 13 787 #define SCTP_NOTIFY_PEER_SHUTDOWN 14 788 #define SCTP_NOTIFY_ASCONF_ADD_IP 15 789 #define SCTP_NOTIFY_ASCONF_DELETE_IP 16 790 #define SCTP_NOTIFY_ASCONF_SET_PRIMARY 17 791 #define SCTP_NOTIFY_PARTIAL_DELVIERY_INDICATION 18 792 #define SCTP_NOTIFY_INTERFACE_CONFIRMED 20 793 #define SCTP_NOTIFY_STR_RESET_RECV 21 794 #define SCTP_NOTIFY_STR_RESET_SEND 22 795 #define SCTP_NOTIFY_STR_RESET_FAILED_OUT 23 796 #define SCTP_NOTIFY_STR_RESET_FAILED_IN 24 797 #define SCTP_NOTIFY_AUTH_NEW_KEY 25 798 #define SCTP_NOTIFY_AUTH_FREE_KEY 26 799 #define SCTP_NOTIFY_SPECIAL_SP_FAIL 27 800 #define SCTP_NOTIFY_NO_PEER_AUTH 28 801 #define SCTP_NOTIFY_SENDER_DRY 29 802 #define SCTP_NOTIFY_STR_RESET_ADD_OK 30 803 #define SCTP_NOTIFY_STR_RESET_ADD_FAIL 31 804 #define SCTP_NOTIFY_STR_RESET_INSTREAM_ADD_OK 32 805 #define SCTP_NOTIFY_MAX 32 806 807 808 /* This is the value for messages that are NOT completely 809 * copied down where we will start to split the message. 810 * So, with our default, we split only if the piece we 811 * want to take will fill up a full MTU (assuming 812 * a 1500 byte MTU). 813 */ 814 #define SCTP_DEFAULT_SPLIT_POINT_MIN 2904 815 816 /* ABORT CODES and other tell-tale location 817 * codes are generated by adding the below 818 * to the instance id. 819 */ 820 821 /* File defines */ 822 #define SCTP_FROM_SCTP_INPUT 0x10000000 823 #define SCTP_FROM_SCTP_PCB 0x20000000 824 #define SCTP_FROM_SCTP_INDATA 0x30000000 825 #define SCTP_FROM_SCTP_TIMER 0x40000000 826 #define SCTP_FROM_SCTP_USRREQ 0x50000000 827 #define SCTP_FROM_SCTPUTIL 0x60000000 828 #define SCTP_FROM_SCTP6_USRREQ 0x70000000 829 #define SCTP_FROM_SCTP_ASCONF 0x80000000 830 #define SCTP_FROM_SCTP_OUTPUT 0x90000000 831 #define SCTP_FROM_SCTP_PEELOFF 0xa0000000 832 #define SCTP_FROM_SCTP_PANDA 0xb0000000 833 #define SCTP_FROM_SCTP_SYSCTL 0xc0000000 834 835 /* Location ID's */ 836 #define SCTP_LOC_1 0x00000001 837 #define SCTP_LOC_2 0x00000002 838 #define SCTP_LOC_3 0x00000003 839 #define SCTP_LOC_4 0x00000004 840 #define SCTP_LOC_5 0x00000005 841 #define SCTP_LOC_6 0x00000006 842 #define SCTP_LOC_7 0x00000007 843 #define SCTP_LOC_8 0x00000008 844 #define SCTP_LOC_9 0x00000009 845 #define SCTP_LOC_10 0x0000000a 846 #define SCTP_LOC_11 0x0000000b 847 #define SCTP_LOC_12 0x0000000c 848 #define SCTP_LOC_13 0x0000000d 849 #define SCTP_LOC_14 0x0000000e 850 #define SCTP_LOC_15 0x0000000f 851 #define SCTP_LOC_16 0x00000010 852 #define SCTP_LOC_17 0x00000011 853 #define SCTP_LOC_18 0x00000012 854 #define SCTP_LOC_19 0x00000013 855 #define SCTP_LOC_20 0x00000014 856 #define SCTP_LOC_21 0x00000015 857 #define SCTP_LOC_22 0x00000016 858 #define SCTP_LOC_23 0x00000017 859 #define SCTP_LOC_24 0x00000018 860 #define SCTP_LOC_25 0x00000019 861 #define SCTP_LOC_26 0x0000001a 862 #define SCTP_LOC_27 0x0000001b 863 #define SCTP_LOC_28 0x0000001c 864 #define SCTP_LOC_29 0x0000001d 865 #define SCTP_LOC_30 0x0000001e 866 #define SCTP_LOC_31 0x0000001f 867 #define SCTP_LOC_32 0x00000020 868 #define SCTP_LOC_33 0x00000021 869 870 871 /* Free assoc codes */ 872 #define SCTP_NORMAL_PROC 0 873 #define SCTP_PCBFREE_NOFORCE 1 874 #define SCTP_PCBFREE_FORCE 2 875 876 /* From codes for adding addresses */ 877 #define SCTP_ADDR_IS_CONFIRMED 8 878 #define SCTP_ADDR_DYNAMIC_ADDED 6 879 #define SCTP_IN_COOKIE_PROC 100 880 #define SCTP_ALLOC_ASOC 1 881 #define SCTP_LOAD_ADDR_2 2 882 #define SCTP_LOAD_ADDR_3 3 883 #define SCTP_LOAD_ADDR_4 4 884 #define SCTP_LOAD_ADDR_5 5 885 886 #define SCTP_DONOT_SETSCOPE 0 887 #define SCTP_DO_SETSCOPE 1 888 889 890 /* This value determines the default for when 891 * we try to add more on the send queue., if 892 * there is room. This prevents us from cycling 893 * into the copy_resume routine to often if 894 * we have not got enough space to add a decent 895 * enough size message. Note that if we have enough 896 * space to complete the message copy we will always 897 * add to the message, no matter what the size. Its 898 * only when we reach the point that we have some left 899 * to add, there is only room for part of it that we 900 * will use this threshold. Its also a sysctl. 901 */ 902 #define SCTP_DEFAULT_ADD_MORE 1452 903 904 #ifndef SCTP_PCBHASHSIZE 905 /* default number of association hash buckets in each endpoint */ 906 #define SCTP_PCBHASHSIZE 256 907 #endif 908 #ifndef SCTP_TCBHASHSIZE 909 #define SCTP_TCBHASHSIZE 1024 910 #endif 911 912 #ifndef SCTP_CHUNKQUEUE_SCALE 913 #define SCTP_CHUNKQUEUE_SCALE 10 914 #endif 915 916 /* clock variance is 1 ms */ 917 #define SCTP_CLOCK_GRANULARITY 1 918 #define IP_HDR_SIZE 40 /* we use the size of a IP6 header here this 919 * detracts a small amount for ipv4 but it 920 * simplifies the ipv6 addition */ 921 922 /* Argument magic number for sctp_inpcb_free() */ 923 924 /* third argument */ 925 #define SCTP_CALLED_DIRECTLY_NOCMPSET 0 926 #define SCTP_CALLED_AFTER_CMPSET_OFCLOSE 1 927 928 /* second argument */ 929 #define SCTP_FREE_SHOULD_USE_ABORT 1 930 #define SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE 0 931 932 #ifndef IPPROTO_SCTP 933 #define IPPROTO_SCTP 132 /* the Official IANA number :-) */ 934 #endif /* !IPPROTO_SCTP */ 935 936 #define SCTP_MAX_DATA_BUNDLING 256 937 938 /* modular comparison */ 939 /* True if a > b (mod = M) */ 940 #define compare_with_wrap(a, b, M) (((a > b) && ((a - b) < ((M >> 1) + 1))) || \ 941 ((b > a) && ((b - a) > ((M >> 1) + 1)))) 942 943 944 /* Mapping array manipulation routines */ 945 #define SCTP_IS_TSN_PRESENT(arry, gap) ((arry[(gap >> 3)] >> (gap & 0x07)) & 0x01) 946 #define SCTP_SET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] |= (0x01 << ((gap & 0x07)))) 947 #define SCTP_UNSET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] &= ((~(0x01 << ((gap & 0x07)))) & 0xff)) 948 949 950 #define SCTP_RETRAN_DONE -1 951 #define SCTP_RETRAN_EXIT -2 952 953 /* 954 * This value defines the number of vtag block time wait entry's per list 955 * element. Each entry will take 2 4 byte ints (and of course the overhead 956 * of the next pointer as well). Using 15 as an example will yield * ((8 * 957 * 15) + 8) or 128 bytes of overhead for each timewait block that gets 958 * initialized. Increasing it to 31 would yeild 256 bytes per block. 959 */ 960 #define SCTP_NUMBER_IN_VTAG_BLOCK 15 961 /* 962 * If we use the STACK option, we have an array of this size head pointers. 963 * This array is mod'd the with the size to find which bucket and then all 964 * entries must be searched to see if the tag is in timed wait. If so we 965 * reject it. 966 */ 967 #define SCTP_STACK_VTAG_HASH_SIZE 32 968 969 /* 970 * Number of seconds of time wait for a vtag. 971 */ 972 #define SCTP_TIME_WAIT 60 973 974 /* The system retains a cache of free chunks such to 975 * cut down on calls the memory allocation system. There 976 * is a per association limit of free items and a overall 977 * system limit. If either one gets hit then the resource 978 * stops being cached. 979 */ 980 981 #define SCTP_DEF_ASOC_RESC_LIMIT 10 982 #define SCTP_DEF_SYSTEM_RESC_LIMIT 1000 983 984 /*- 985 * defines for socket lock states. 986 * Used by __APPLE__ and SCTP_SO_LOCK_TESTING 987 */ 988 #define SCTP_SO_LOCKED 1 989 #define SCTP_SO_NOT_LOCKED 0 990 991 992 #define SCTP_HOLDS_LOCK 1 993 #define SCTP_NOT_LOCKED 0 994 995 /*- 996 * For address locks, do we hold the lock? 997 */ 998 #define SCTP_ADDR_LOCKED 1 999 #define SCTP_ADDR_NOT_LOCKED 0 1000 1001 #define IN4_ISPRIVATE_ADDRESS(a) \ 1002 ((((uint8_t *)&(a)->s_addr)[0] == 10) || \ 1003 ((((uint8_t *)&(a)->s_addr)[0] == 172) && \ 1004 (((uint8_t *)&(a)->s_addr)[1] >= 16) && \ 1005 (((uint8_t *)&(a)->s_addr)[1] <= 32)) || \ 1006 ((((uint8_t *)&(a)->s_addr)[0] == 192) && \ 1007 (((uint8_t *)&(a)->s_addr)[1] == 168))) 1008 1009 #define IN4_ISLOOPBACK_ADDRESS(a) \ 1010 ((((uint8_t *)&(a)->s_addr)[0] == 127) && \ 1011 (((uint8_t *)&(a)->s_addr)[1] == 0) && \ 1012 (((uint8_t *)&(a)->s_addr)[2] == 0) && \ 1013 (((uint8_t *)&(a)->s_addr)[3] == 1)) 1014 1015 1016 #if defined(_KERNEL) 1017 1018 #define SCTP_GETTIME_TIMEVAL(x) (getmicrouptime(x)) 1019 #define SCTP_GETPTIME_TIMEVAL(x) (microuptime(x)) 1020 #endif 1021 /*#if defined(__FreeBSD__) || defined(__APPLE__)*/ 1022 /*#define SCTP_GETTIME_TIMEVAL(x) { \*/ 1023 /* (x)->tv_sec = ticks / 1000; \*/ 1024 /* (x)->tv_usec = (ticks % 1000) * 1000; \*/ 1025 /*}*/ 1026 1027 /*#else*/ 1028 /*#define SCTP_GETTIME_TIMEVAL(x) (microtime(x))*/ 1029 /*#endif __FreeBSD__ */ 1030 1031 #if defined(_KERNEL) || defined(__Userspace__) 1032 #define sctp_sowwakeup(inp, so) \ 1033 do { \ 1034 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1035 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \ 1036 } else { \ 1037 sowwakeup(so); \ 1038 } \ 1039 } while (0) 1040 1041 #define sctp_sowwakeup_locked(inp, so) \ 1042 do { \ 1043 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1044 SOCKBUF_UNLOCK(&((so)->so_snd)); \ 1045 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \ 1046 } else { \ 1047 sowwakeup_locked(so); \ 1048 } \ 1049 } while (0) 1050 1051 #define sctp_sorwakeup(inp, so) \ 1052 do { \ 1053 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1054 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \ 1055 } else { \ 1056 sorwakeup(so); \ 1057 } \ 1058 } while (0) 1059 1060 #define sctp_sorwakeup_locked(inp, so) \ 1061 do { \ 1062 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1063 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \ 1064 SOCKBUF_UNLOCK(&((so)->so_rcv)); \ 1065 } else { \ 1066 sorwakeup_locked(so); \ 1067 } \ 1068 } while (0) 1069 1070 #endif /* _KERNEL || __Userspace__ */ 1071 #endif 1072