1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved. 5 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved. 6 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions are met: 10 * 11 * a) Redistributions of source code must retain the above copyright notice, 12 * this list of conditions and the following disclaimer. 13 * 14 * b) Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in 16 * the documentation and/or other materials provided with the distribution. 17 * 18 * c) Neither the name of Cisco Systems, Inc. nor the names of its 19 * contributors may be used to endorse or promote products derived 20 * from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 24 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 32 * THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 #ifdef __FreeBSD__ 36 #include <sys/cdefs.h> 37 __FBSDID("$FreeBSD: head/sys/netinet/sctp_constants.h 324615 2017-10-14 10:02:59Z tuexen $"); 38 #endif 39 40 #ifndef _NETINET_SCTP_CONSTANTS_H_ 41 #define _NETINET_SCTP_CONSTANTS_H_ 42 43 #if defined(__Userspace_os_Windows) 44 extern void getwintimeofday(struct timeval *tv); 45 #endif 46 47 /* IANA assigned port number for SCTP over UDP encapsulation */ 48 #define SCTP_OVER_UDP_TUNNELING_PORT 9899 49 50 /* Number of packets to get before sack sent by default */ 51 #define SCTP_DEFAULT_SACK_FREQ 2 52 53 /* Address limit - This variable is calculated 54 * based on an 65535 byte max ip packet. We take out 100 bytes 55 * for the cookie, 40 bytes for a v6 header and 32 56 * bytes for the init structure. A second init structure 57 * for the init-ack and then finally a third one for the 58 * imbedded init. This yeilds 100+40+(3 * 32) = 236 bytes. 59 * This leaves 65299 bytes for addresses. We throw out the 299 bytes. 60 * Now whatever we send in the INIT() we need to allow to get back in the 61 * INIT-ACK plus all the values from INIT and INIT-ACK 62 * listed in the cookie. Plus we need some overhead for 63 * maybe copied parameters in the COOKIE. If we 64 * allow 1080 addresses, and each side has 1080 V6 addresses 65 * that will be 21600 bytes. In the INIT-ACK we will 66 * see the INIT-ACK 21600 + 43200 in the cookie. This leaves 67 * about 500 bytes slack for misc things in the cookie. 68 */ 69 #define SCTP_ADDRESS_LIMIT 1080 70 71 /* We need at least 2k of space for us, inits 72 * larger than that lets abort. 73 */ 74 #define SCTP_LARGEST_INIT_ACCEPTED (65535 - 2048) 75 76 /* Largest length of a chunk */ 77 #define SCTP_MAX_CHUNK_LENGTH 0xffff 78 /* Largest length of an error cause */ 79 #define SCTP_MAX_CAUSE_LENGTH 0xffff 80 /* Number of addresses where we just skip the counting */ 81 #define SCTP_COUNT_LIMIT 40 82 83 #define SCTP_ZERO_COPY_TICK_DELAY (((100 * hz) + 999) / 1000) 84 #define SCTP_ZERO_COPY_SENDQ_TICK_DELAY (((100 * hz) + 999) / 1000) 85 86 /* Number of ticks to delay before running 87 * iterator on an address change. 88 */ 89 #define SCTP_ADDRESS_TICK_DELAY 2 90 91 #define SCTP_VERSION_STRING "KAME-BSD 1.1" 92 /* #define SCTP_AUDITING_ENABLED 1 used for debug/auditing */ 93 #define SCTP_AUDIT_SIZE 256 94 95 96 #define SCTP_KTRHEAD_NAME "sctp_iterator" 97 #define SCTP_KTHREAD_PAGES 0 98 99 #define SCTP_MCORE_NAME "sctp_core_worker" 100 101 102 /* If you support Multi-VRF how big to 103 * make the initial array of VRF's to. 104 */ 105 #define SCTP_DEFAULT_VRF_SIZE 4 106 107 /* JRS - Values defined for the HTCP algorithm */ 108 #define ALPHA_BASE (1<<7) /* 1.0 with shift << 7 */ 109 #define BETA_MIN (1<<6) /* 0.5 with shift << 7 */ 110 #define BETA_MAX 102 /* 0.8 with shift << 7 */ 111 112 /* Places that CWND log can happen from */ 113 #define SCTP_CWND_LOG_FROM_FR 1 114 #define SCTP_CWND_LOG_FROM_RTX 2 115 #define SCTP_CWND_LOG_FROM_BRST 3 116 #define SCTP_CWND_LOG_FROM_SS 4 117 #define SCTP_CWND_LOG_FROM_CA 5 118 #define SCTP_CWND_LOG_FROM_SAT 6 119 #define SCTP_BLOCK_LOG_INTO_BLK 7 120 #define SCTP_BLOCK_LOG_OUTOF_BLK 8 121 #define SCTP_BLOCK_LOG_CHECK 9 122 #define SCTP_STR_LOG_FROM_INTO_STRD 10 123 #define SCTP_STR_LOG_FROM_IMMED_DEL 11 124 #define SCTP_STR_LOG_FROM_INSERT_HD 12 125 #define SCTP_STR_LOG_FROM_INSERT_MD 13 126 #define SCTP_STR_LOG_FROM_INSERT_TL 14 127 #define SCTP_STR_LOG_FROM_MARK_TSN 15 128 #define SCTP_STR_LOG_FROM_EXPRS_DEL 16 129 #define SCTP_FR_LOG_BIGGEST_TSNS 17 130 #define SCTP_FR_LOG_STRIKE_TEST 18 131 #define SCTP_FR_LOG_STRIKE_CHUNK 19 132 #define SCTP_FR_T3_TIMEOUT 20 133 #define SCTP_MAP_PREPARE_SLIDE 21 134 #define SCTP_MAP_SLIDE_FROM 22 135 #define SCTP_MAP_SLIDE_RESULT 23 136 #define SCTP_MAP_SLIDE_CLEARED 24 137 #define SCTP_MAP_SLIDE_NONE 25 138 #define SCTP_FR_T3_MARK_TIME 26 139 #define SCTP_FR_T3_MARKED 27 140 #define SCTP_FR_T3_STOPPED 28 141 #define SCTP_FR_MARKED 30 142 #define SCTP_CWND_LOG_NOADV_SS 31 143 #define SCTP_CWND_LOG_NOADV_CA 32 144 #define SCTP_MAX_BURST_APPLIED 33 145 #define SCTP_MAX_IFP_APPLIED 34 146 #define SCTP_MAX_BURST_ERROR_STOP 35 147 #define SCTP_INCREASE_PEER_RWND 36 148 #define SCTP_DECREASE_PEER_RWND 37 149 #define SCTP_SET_PEER_RWND_VIA_SACK 38 150 #define SCTP_LOG_MBCNT_INCREASE 39 151 #define SCTP_LOG_MBCNT_DECREASE 40 152 #define SCTP_LOG_MBCNT_CHKSET 41 153 #define SCTP_LOG_NEW_SACK 42 154 #define SCTP_LOG_TSN_ACKED 43 155 #define SCTP_LOG_TSN_REVOKED 44 156 #define SCTP_LOG_LOCK_TCB 45 157 #define SCTP_LOG_LOCK_INP 46 158 #define SCTP_LOG_LOCK_SOCK 47 159 #define SCTP_LOG_LOCK_SOCKBUF_R 48 160 #define SCTP_LOG_LOCK_SOCKBUF_S 49 161 #define SCTP_LOG_LOCK_CREATE 50 162 #define SCTP_LOG_INITIAL_RTT 51 163 #define SCTP_LOG_RTTVAR 52 164 #define SCTP_LOG_SBALLOC 53 165 #define SCTP_LOG_SBFREE 54 166 #define SCTP_LOG_SBRESULT 55 167 #define SCTP_FR_DUPED 56 168 #define SCTP_FR_MARKED_EARLY 57 169 #define SCTP_FR_CWND_REPORT 58 170 #define SCTP_FR_CWND_REPORT_START 59 171 #define SCTP_FR_CWND_REPORT_STOP 60 172 #define SCTP_CWND_LOG_FROM_SEND 61 173 #define SCTP_CWND_INITIALIZATION 62 174 #define SCTP_CWND_LOG_FROM_T3 63 175 #define SCTP_CWND_LOG_FROM_SACK 64 176 #define SCTP_CWND_LOG_NO_CUMACK 65 177 #define SCTP_CWND_LOG_FROM_RESEND 66 178 #define SCTP_FR_LOG_CHECK_STRIKE 67 179 #define SCTP_SEND_NOW_COMPLETES 68 180 #define SCTP_CWND_LOG_FILL_OUTQ_CALLED 69 181 #define SCTP_CWND_LOG_FILL_OUTQ_FILLS 70 182 #define SCTP_LOG_FREE_SENT 71 183 #define SCTP_NAGLE_APPLIED 72 184 #define SCTP_NAGLE_SKIPPED 73 185 #define SCTP_WAKESND_FROM_SACK 74 186 #define SCTP_WAKESND_FROM_FWDTSN 75 187 #define SCTP_NOWAKE_FROM_SACK 76 188 #define SCTP_CWNDLOG_PRESEND 77 189 #define SCTP_CWNDLOG_ENDSEND 78 190 #define SCTP_AT_END_OF_SACK 79 191 #define SCTP_REASON_FOR_SC 80 192 #define SCTP_BLOCK_LOG_INTO_BLKA 81 193 #define SCTP_ENTER_USER_RECV 82 194 #define SCTP_USER_RECV_SACKS 83 195 #define SCTP_SORECV_BLOCKSA 84 196 #define SCTP_SORECV_BLOCKSB 85 197 #define SCTP_SORECV_DONE 86 198 #define SCTP_SACK_RWND_UPDATE 87 199 #define SCTP_SORECV_ENTER 88 200 #define SCTP_SORECV_ENTERPL 89 201 #define SCTP_MBUF_INPUT 90 202 #define SCTP_MBUF_IALLOC 91 203 #define SCTP_MBUF_IFREE 92 204 #define SCTP_MBUF_ICOPY 93 205 #define SCTP_MBUF_SPLIT 94 206 #define SCTP_SORCV_FREECTL 95 207 #define SCTP_SORCV_DOESCPY 96 208 #define SCTP_SORCV_DOESLCK 97 209 #define SCTP_SORCV_DOESADJ 98 210 #define SCTP_SORCV_BOTWHILE 99 211 #define SCTP_SORCV_PASSBF 100 212 #define SCTP_SORCV_ADJD 101 213 #define SCTP_UNKNOWN_MAX 102 214 #define SCTP_RANDY_STUFF 103 215 #define SCTP_RANDY_STUFF1 104 216 #define SCTP_STRMOUT_LOG_ASSIGN 105 217 #define SCTP_STRMOUT_LOG_SEND 106 218 #define SCTP_FLIGHT_LOG_DOWN_CA 107 219 #define SCTP_FLIGHT_LOG_UP 108 220 #define SCTP_FLIGHT_LOG_DOWN_GAP 109 221 #define SCTP_FLIGHT_LOG_DOWN_RSND 110 222 #define SCTP_FLIGHT_LOG_UP_RSND 111 223 #define SCTP_FLIGHT_LOG_DOWN_RSND_TO 112 224 #define SCTP_FLIGHT_LOG_DOWN_WP 113 225 #define SCTP_FLIGHT_LOG_UP_REVOKE 114 226 #define SCTP_FLIGHT_LOG_DOWN_PDRP 115 227 #define SCTP_FLIGHT_LOG_DOWN_PMTU 116 228 #define SCTP_SACK_LOG_NORMAL 117 229 #define SCTP_SACK_LOG_EXPRESS 118 230 #define SCTP_MAP_TSN_ENTERS 119 231 #define SCTP_THRESHOLD_CLEAR 120 232 #define SCTP_THRESHOLD_INCR 121 233 #define SCTP_FLIGHT_LOG_DWN_WP_FWD 122 234 #define SCTP_FWD_TSN_CHECK 123 235 #define SCTP_LOG_MAX_TYPES 124 236 /* 237 * To turn on various logging, you must first enable 'options KTR' and 238 * you might want to bump the entires 'options KTR_ENTRIES=80000'. 239 * To get something to log you define one of the logging defines. 240 * (see LINT). 241 * 242 * This gets the compile in place, but you still need to turn the 243 * logging flag on too in the sysctl (see in sctp.h). 244 */ 245 246 #define SCTP_LOG_EVENT_UNKNOWN 0 247 #define SCTP_LOG_EVENT_CWND 1 248 #define SCTP_LOG_EVENT_BLOCK 2 249 #define SCTP_LOG_EVENT_STRM 3 250 #define SCTP_LOG_EVENT_FR 4 251 #define SCTP_LOG_EVENT_MAP 5 252 #define SCTP_LOG_EVENT_MAXBURST 6 253 #define SCTP_LOG_EVENT_RWND 7 254 #define SCTP_LOG_EVENT_MBCNT 8 255 #define SCTP_LOG_EVENT_SACK 9 256 #define SCTP_LOG_LOCK_EVENT 10 257 #define SCTP_LOG_EVENT_RTT 11 258 #define SCTP_LOG_EVENT_SB 12 259 #define SCTP_LOG_EVENT_NAGLE 13 260 #define SCTP_LOG_EVENT_WAKE 14 261 #define SCTP_LOG_MISC_EVENT 15 262 #define SCTP_LOG_EVENT_CLOSE 16 263 #define SCTP_LOG_EVENT_MBUF 17 264 #define SCTP_LOG_CHUNK_PROC 18 265 #define SCTP_LOG_ERROR_RET 19 266 267 #define SCTP_LOG_MAX_EVENT 20 268 269 #define SCTP_LOCK_UNKNOWN 2 270 271 272 /* number of associations by default for zone allocation */ 273 #define SCTP_MAX_NUM_OF_ASOC 40000 274 /* how many addresses per assoc remote and local */ 275 #define SCTP_SCALE_FOR_ADDR 2 276 277 /* default MULTIPLE_ASCONF mode enable(1)/disable(0) value (sysctl) */ 278 #define SCTP_DEFAULT_MULTIPLE_ASCONFS 0 279 280 /* 281 * Threshold for rwnd updates, we have to read (sb_hiwat >> 282 * SCTP_RWND_HIWAT_SHIFT) before we will look to see if we need to send a 283 * window update sack. When we look, we compare the last rwnd we sent vs the 284 * current rwnd. It too must be greater than this value. Using 3 divdes the 285 * hiwat by 8, so for 200k rwnd we need to read 24k. For a 64k rwnd we need 286 * to read 8k. This seems about right.. I hope :-D.. we do set a 287 * min of a MTU on it so if the rwnd is real small we will insist 288 * on a full MTU of 1500 bytes. 289 */ 290 #define SCTP_RWND_HIWAT_SHIFT 3 291 292 /* How much of the rwnd must the 293 * message be taking up to start partial delivery. 294 * We calculate this by shifing the hi_water (recv_win) 295 * left the following .. set to 1, when a message holds 296 * 1/2 the rwnd. If we set it to 2 when a message holds 297 * 1/4 the rwnd...etc.. 298 */ 299 300 #define SCTP_PARTIAL_DELIVERY_SHIFT 1 301 302 /* 303 * default HMAC for cookies, etc... use one of the AUTH HMAC id's 304 * SCTP_HMAC is the HMAC_ID to use 305 * SCTP_SIGNATURE_SIZE is the digest length 306 */ 307 #define SCTP_HMAC SCTP_AUTH_HMAC_ID_SHA1 308 #define SCTP_SIGNATURE_SIZE SCTP_AUTH_DIGEST_LEN_SHA1 309 #define SCTP_SIGNATURE_ALOC_SIZE SCTP_SIGNATURE_SIZE 310 311 /* 312 * the SCTP protocol signature this includes the version number encoded in 313 * the last 4 bits of the signature. 314 */ 315 #define PROTO_SIGNATURE_A 0x30000000 316 #define SCTP_VERSION_NUMBER 0x3 317 318 #define MAX_TSN 0xffffffff 319 320 /* how many executions every N tick's */ 321 #define SCTP_ITERATOR_MAX_AT_ONCE 20 322 323 /* number of clock ticks between iterator executions */ 324 #define SCTP_ITERATOR_TICKS 1 325 326 /* 327 * option: If you comment out the following you will receive the old behavior 328 * of obeying cwnd for the fast retransmit algorithm. With this defined a FR 329 * happens right away with-out waiting for the flightsize to drop below the 330 * cwnd value (which is reduced by the FR to 1/2 the inflight packets). 331 */ 332 #define SCTP_IGNORE_CWND_ON_FR 1 333 334 /* 335 * Adds implementors guide behavior to only use newest highest update in SACK 336 * gap ack's to figure out if you need to stroke a chunk for FR. 337 */ 338 #define SCTP_NO_FR_UNLESS_SEGMENT_SMALLER 1 339 340 /* default max I can burst out after a fast retransmit, 0 disables it */ 341 #define SCTP_DEF_MAX_BURST 4 342 #define SCTP_DEF_HBMAX_BURST 4 343 #define SCTP_DEF_FRMAX_BURST 4 344 345 /* RTO calculation flag to say if it 346 * is safe to determine local lan or not. 347 */ 348 #define SCTP_RTT_FROM_NON_DATA 0 349 #define SCTP_RTT_FROM_DATA 1 350 351 #define PR_SCTP_UNORDERED_FLAG 0x0001 352 353 /* IP hdr (20/40) + 12+2+2 (enet) + sctp common 12 */ 354 #define SCTP_FIRST_MBUF_RESV 68 355 /* Packet transmit states in the sent field */ 356 #define SCTP_DATAGRAM_UNSENT 0 357 #define SCTP_DATAGRAM_SENT 1 358 #define SCTP_DATAGRAM_RESEND1 2 /* not used (in code, but may 359 * hit this value) */ 360 #define SCTP_DATAGRAM_RESEND2 3 /* not used (in code, but may 361 * hit this value) */ 362 #define SCTP_DATAGRAM_RESEND 4 363 #define SCTP_DATAGRAM_ACKED 10010 364 #define SCTP_DATAGRAM_MARKED 20010 365 #define SCTP_FORWARD_TSN_SKIP 30010 366 #define SCTP_DATAGRAM_NR_ACKED 40010 367 368 /* chunk output send from locations */ 369 #define SCTP_OUTPUT_FROM_USR_SEND 0 370 #define SCTP_OUTPUT_FROM_T3 1 371 #define SCTP_OUTPUT_FROM_INPUT_ERROR 2 372 #define SCTP_OUTPUT_FROM_CONTROL_PROC 3 373 #define SCTP_OUTPUT_FROM_SACK_TMR 4 374 #define SCTP_OUTPUT_FROM_SHUT_TMR 5 375 #define SCTP_OUTPUT_FROM_HB_TMR 6 376 #define SCTP_OUTPUT_FROM_SHUT_ACK_TMR 7 377 #define SCTP_OUTPUT_FROM_ASCONF_TMR 8 378 #define SCTP_OUTPUT_FROM_STRRST_TMR 9 379 #define SCTP_OUTPUT_FROM_AUTOCLOSE_TMR 10 380 #define SCTP_OUTPUT_FROM_EARLY_FR_TMR 11 381 #define SCTP_OUTPUT_FROM_STRRST_REQ 12 382 #define SCTP_OUTPUT_FROM_USR_RCVD 13 383 #define SCTP_OUTPUT_FROM_COOKIE_ACK 14 384 #define SCTP_OUTPUT_FROM_DRAIN 15 385 #define SCTP_OUTPUT_FROM_CLOSING 16 386 #define SCTP_OUTPUT_FROM_SOCKOPT 17 387 388 /* SCTP chunk types are moved sctp.h for application (NAT, FW) use */ 389 390 /* align to 32-bit sizes */ 391 #define SCTP_SIZE32(x) ((((x) + 3) >> 2) << 2) 392 393 #define IS_SCTP_CONTROL(a) (((a)->chunk_type != SCTP_DATA) && ((a)->chunk_type != SCTP_IDATA)) 394 #define IS_SCTP_DATA(a) (((a)->chunk_type == SCTP_DATA) || ((a)->chunk_type == SCTP_IDATA)) 395 396 397 /* SCTP parameter types */ 398 /*************0x0000 series*************/ 399 #define SCTP_HEARTBEAT_INFO 0x0001 400 #if defined(__Userspace__) 401 #define SCTP_CONN_ADDRESS 0x0004 402 #endif 403 #define SCTP_IPV4_ADDRESS 0x0005 404 #define SCTP_IPV6_ADDRESS 0x0006 405 #define SCTP_STATE_COOKIE 0x0007 406 #define SCTP_UNRECOG_PARAM 0x0008 407 #define SCTP_COOKIE_PRESERVE 0x0009 408 #define SCTP_HOSTNAME_ADDRESS 0x000b 409 #define SCTP_SUPPORTED_ADDRTYPE 0x000c 410 411 /* draft-ietf-stewart-tsvwg-strreset-xxx */ 412 #define SCTP_STR_RESET_OUT_REQUEST 0x000d 413 #define SCTP_STR_RESET_IN_REQUEST 0x000e 414 #define SCTP_STR_RESET_TSN_REQUEST 0x000f 415 #define SCTP_STR_RESET_RESPONSE 0x0010 416 #define SCTP_STR_RESET_ADD_OUT_STREAMS 0x0011 417 #define SCTP_STR_RESET_ADD_IN_STREAMS 0x0012 418 419 #define SCTP_MAX_RESET_PARAMS 2 420 #define SCTP_STREAM_RESET_TSN_DELTA 0x1000 421 422 /*************0x4000 series*************/ 423 424 /*************0x8000 series*************/ 425 #define SCTP_ECN_CAPABLE 0x8000 426 427 /* draft-ietf-tsvwg-auth-xxx */ 428 #define SCTP_RANDOM 0x8002 429 #define SCTP_CHUNK_LIST 0x8003 430 #define SCTP_HMAC_LIST 0x8004 431 /* 432 * draft-ietf-tsvwg-addip-sctp-xx param=0x8008 len=0xNNNN Byte | Byte | Byte 433 * | Byte Byte | Byte ... 434 * 435 * Where each byte is a chunk type extension supported. For example, to support 436 * all chunks one would have (in hex): 437 * 438 * 80 01 00 09 C0 C1 80 81 82 00 00 00 439 * 440 * Has the parameter. C0 = PR-SCTP (RFC3758) C1, 80 = ASCONF (addip draft) 81 441 * = Packet Drop 82 = Stream Reset 83 = Authentication 442 */ 443 #define SCTP_SUPPORTED_CHUNK_EXT 0x8008 444 445 /*************0xC000 series*************/ 446 #define SCTP_PRSCTP_SUPPORTED 0xc000 447 /* draft-ietf-tsvwg-addip-sctp */ 448 #define SCTP_ADD_IP_ADDRESS 0xc001 449 #define SCTP_DEL_IP_ADDRESS 0xc002 450 #define SCTP_ERROR_CAUSE_IND 0xc003 451 #define SCTP_SET_PRIM_ADDR 0xc004 452 #define SCTP_SUCCESS_REPORT 0xc005 453 #define SCTP_ULP_ADAPTATION 0xc006 454 /* behave-nat-draft */ 455 #define SCTP_HAS_NAT_SUPPORT 0xc007 456 #define SCTP_NAT_VTAGS 0xc008 457 458 /* bits for TOS field */ 459 #define SCTP_ECT0_BIT 0x02 460 #define SCTP_ECT1_BIT 0x01 461 #define SCTP_CE_BITS 0x03 462 463 /* below turns off above */ 464 #define SCTP_FLEXIBLE_ADDRESS 0x20 465 #define SCTP_NO_HEARTBEAT 0x40 466 467 /* mask to get sticky */ 468 #define SCTP_STICKY_OPTIONS_MASK 0x0c 469 470 471 /* 472 * SCTP states for internal state machine 473 */ 474 #define SCTP_STATE_EMPTY 0x0000 475 #define SCTP_STATE_INUSE 0x0001 476 #define SCTP_STATE_COOKIE_WAIT 0x0002 477 #define SCTP_STATE_COOKIE_ECHOED 0x0004 478 #define SCTP_STATE_OPEN 0x0008 479 #define SCTP_STATE_SHUTDOWN_SENT 0x0010 480 #define SCTP_STATE_SHUTDOWN_RECEIVED 0x0020 481 #define SCTP_STATE_SHUTDOWN_ACK_SENT 0x0040 482 #define SCTP_STATE_SHUTDOWN_PENDING 0x0080 483 #define SCTP_STATE_CLOSED_SOCKET 0x0100 484 #define SCTP_STATE_ABOUT_TO_BE_FREED 0x0200 485 #define SCTP_STATE_PARTIAL_MSG_LEFT 0x0400 486 #define SCTP_STATE_WAS_ABORTED 0x0800 487 #define SCTP_STATE_IN_ACCEPT_QUEUE 0x1000 488 #define SCTP_STATE_MASK 0x007f 489 490 #define SCTP_GET_STATE(asoc) ((asoc)->state & SCTP_STATE_MASK) 491 #define SCTP_SET_STATE(asoc, newstate) ((asoc)->state = ((asoc)->state & ~SCTP_STATE_MASK) | newstate) 492 #define SCTP_CLEAR_SUBSTATE(asoc, substate) ((asoc)->state &= ~substate) 493 #define SCTP_ADD_SUBSTATE(asoc, substate) ((asoc)->state |= substate) 494 495 /* SCTP reachability state for each address */ 496 #define SCTP_ADDR_REACHABLE 0x001 497 #define SCTP_ADDR_NO_PMTUD 0x002 498 #define SCTP_ADDR_NOHB 0x004 499 #define SCTP_ADDR_BEING_DELETED 0x008 500 #define SCTP_ADDR_NOT_IN_ASSOC 0x010 501 #define SCTP_ADDR_OUT_OF_SCOPE 0x080 502 #define SCTP_ADDR_UNCONFIRMED 0x200 503 #define SCTP_ADDR_REQ_PRIMARY 0x400 504 /* JRS 5/13/07 - Added potentially failed state for CMT PF */ 505 #define SCTP_ADDR_PF 0x800 506 507 /* bound address types (e.g. valid address types to allow) */ 508 #define SCTP_BOUND_V6 0x01 509 #define SCTP_BOUND_V4 0x02 510 511 /* 512 * what is the default number of mbufs in a chain I allow before switching to 513 * a cluster 514 */ 515 #define SCTP_DEFAULT_MBUFS_IN_CHAIN 5 516 517 /* How long a cookie lives in milli-seconds */ 518 #define SCTP_DEFAULT_COOKIE_LIFE 60000 519 520 /* Maximum the mapping array will grow to (TSN mapping array) */ 521 #define SCTP_MAPPING_ARRAY 512 522 523 /* size of the initial malloc on the mapping array */ 524 #define SCTP_INITIAL_MAPPING_ARRAY 16 525 /* how much we grow the mapping array each call */ 526 #define SCTP_MAPPING_ARRAY_INCR 32 527 528 /* 529 * Here we define the timer types used by the implementation as arguments in 530 * the set/get timer type calls. 531 */ 532 #define SCTP_TIMER_INIT 0 533 #define SCTP_TIMER_RECV 1 534 #define SCTP_TIMER_SEND 2 535 #define SCTP_TIMER_HEARTBEAT 3 536 #define SCTP_TIMER_PMTU 4 537 #define SCTP_TIMER_MAXSHUTDOWN 5 538 #define SCTP_TIMER_SIGNATURE 6 539 /* 540 * number of timer types in the base SCTP structure used in the set/get and 541 * has the base default. 542 */ 543 #define SCTP_NUM_TMRS 7 544 545 /* timer types */ 546 #define SCTP_TIMER_TYPE_NONE 0 547 #define SCTP_TIMER_TYPE_SEND 1 548 #define SCTP_TIMER_TYPE_INIT 2 549 #define SCTP_TIMER_TYPE_RECV 3 550 #define SCTP_TIMER_TYPE_SHUTDOWN 4 551 #define SCTP_TIMER_TYPE_HEARTBEAT 5 552 #define SCTP_TIMER_TYPE_COOKIE 6 553 #define SCTP_TIMER_TYPE_NEWCOOKIE 7 554 #define SCTP_TIMER_TYPE_PATHMTURAISE 8 555 #define SCTP_TIMER_TYPE_SHUTDOWNACK 9 556 #define SCTP_TIMER_TYPE_ASCONF 10 557 #define SCTP_TIMER_TYPE_SHUTDOWNGUARD 11 558 #define SCTP_TIMER_TYPE_AUTOCLOSE 12 559 #define SCTP_TIMER_TYPE_EVENTWAKE 13 560 #define SCTP_TIMER_TYPE_STRRESET 14 561 #define SCTP_TIMER_TYPE_INPKILL 15 562 #define SCTP_TIMER_TYPE_ASOCKILL 16 563 #define SCTP_TIMER_TYPE_ADDR_WQ 17 564 #define SCTP_TIMER_TYPE_PRIM_DELETED 18 565 /* add new timers here - and increment LAST */ 566 #define SCTP_TIMER_TYPE_LAST 19 567 568 #define SCTP_IS_TIMER_TYPE_VALID(t) (((t) > SCTP_TIMER_TYPE_NONE) && \ 569 ((t) < SCTP_TIMER_TYPE_LAST)) 570 571 572 #if defined(__APPLE__) 573 /* Number of ticks to run the main timer at in msec */ 574 #define SCTP_MAIN_TIMER_DEFAULT 10 575 #endif 576 577 /* max number of TSN's dup'd that I will hold */ 578 #define SCTP_MAX_DUP_TSNS 20 579 580 /* 581 * Here we define the types used when setting the retry amounts. 582 */ 583 /* How many drop re-attempts we make on INIT/COOKIE-ECHO */ 584 #define SCTP_RETRY_DROPPED_THRESH 4 585 586 /* 587 * Maxmium number of chunks a single association can have on it. Note that 588 * this is a squishy number since the count can run over this if the user 589 * sends a large message down .. the fragmented chunks don't count until 590 * AFTER the message is on queue.. it would be the next send that blocks 591 * things. This number will get tuned up at boot in the sctp_init and use the 592 * number of clusters as a base. This way high bandwidth environments will 593 * not get impacted by the lower bandwidth sending a bunch of 1 byte chunks 594 */ 595 #ifdef __Panda__ 596 #define SCTP_ASOC_MAX_CHUNKS_ON_QUEUE 10240 597 #else 598 #define SCTP_ASOC_MAX_CHUNKS_ON_QUEUE 512 599 #endif 600 601 602 /* The conversion from time to ticks and vice versa is done by rounding 603 * upwards. This way we can test in the code the time to be positive and 604 * know that this corresponds to a positive number of ticks. 605 */ 606 #define MSEC_TO_TICKS(x) ((hz == 1000) ? x : ((((x) * hz) + 999) / 1000)) 607 #define TICKS_TO_MSEC(x) ((hz == 1000) ? x : ((((x) * 1000) + (hz - 1)) / hz)) 608 609 #define SEC_TO_TICKS(x) ((x) * hz) 610 #define TICKS_TO_SEC(x) (((x) + (hz - 1)) / hz) 611 612 /* 613 * Basically the minimum amount of time before I do a early FR. Making this 614 * value to low will cause duplicate retransmissions. 615 */ 616 #define SCTP_MINFR_MSEC_TIMER 250 617 /* The floor this value is allowed to fall to when starting a timer. */ 618 #define SCTP_MINFR_MSEC_FLOOR 20 619 620 /* init timer def = 1 sec */ 621 #define SCTP_INIT_SEC 1 622 623 /* send timer def = 1 seconds */ 624 #define SCTP_SEND_SEC 1 625 626 /* recv timer def = 200ms */ 627 #define SCTP_RECV_MSEC 200 628 629 /* 30 seconds + RTO (in ms) */ 630 #define SCTP_HB_DEFAULT_MSEC 30000 631 632 /* 633 * This is how long a secret lives, NOT how long a cookie lives how many 634 * ticks the current secret will live. 635 */ 636 #define SCTP_DEFAULT_SECRET_LIFE_SEC 3600 637 638 #define SCTP_RTO_UPPER_BOUND (60000) /* 60 sec in ms */ 639 #define SCTP_RTO_LOWER_BOUND (1000) /* 1 sec is ms */ 640 #define SCTP_RTO_INITIAL (3000) /* 3 sec in ms */ 641 642 643 #define SCTP_INP_KILL_TIMEOUT 20 /* number of ms to retry kill of inpcb */ 644 #define SCTP_ASOC_KILL_TIMEOUT 10 /* number of ms to retry kill of inpcb */ 645 646 #define SCTP_DEF_MAX_INIT 8 647 #define SCTP_DEF_MAX_SEND 10 648 #define SCTP_DEF_MAX_PATH_RTX 5 649 #define SCTP_DEF_PATH_PF_THRESHOLD SCTP_DEF_MAX_PATH_RTX 650 651 #define SCTP_DEF_PMTU_RAISE_SEC 600 /* 10 min between raise attempts */ 652 653 654 /* How many streams I request initially by default */ 655 #define SCTP_OSTREAM_INITIAL 10 656 #define SCTP_ISTREAM_INITIAL 2048 657 658 /* 659 * How many smallest_mtu's need to increase before a window update sack is 660 * sent (should be a power of 2). 661 */ 662 /* Send window update (incr * this > hiwat). Should be a power of 2 */ 663 #define SCTP_MINIMAL_RWND (4096) /* minimal rwnd */ 664 665 #define SCTP_ADDRMAX 16 666 667 /* SCTP DEBUG Switch parameters */ 668 #define SCTP_DEBUG_TIMER1 0x00000001 669 #define SCTP_DEBUG_TIMER2 0x00000002 /* unused */ 670 #define SCTP_DEBUG_TIMER3 0x00000004 /* unused */ 671 #define SCTP_DEBUG_TIMER4 0x00000008 672 #define SCTP_DEBUG_OUTPUT1 0x00000010 673 #define SCTP_DEBUG_OUTPUT2 0x00000020 674 #define SCTP_DEBUG_OUTPUT3 0x00000040 675 #define SCTP_DEBUG_OUTPUT4 0x00000080 676 #define SCTP_DEBUG_UTIL1 0x00000100 677 #define SCTP_DEBUG_UTIL2 0x00000200 /* unused */ 678 #define SCTP_DEBUG_AUTH1 0x00000400 679 #define SCTP_DEBUG_AUTH2 0x00000800 /* unused */ 680 #define SCTP_DEBUG_INPUT1 0x00001000 681 #define SCTP_DEBUG_INPUT2 0x00002000 682 #define SCTP_DEBUG_INPUT3 0x00004000 683 #define SCTP_DEBUG_INPUT4 0x00008000 /* unused */ 684 #define SCTP_DEBUG_ASCONF1 0x00010000 685 #define SCTP_DEBUG_ASCONF2 0x00020000 686 #define SCTP_DEBUG_OUTPUT5 0x00040000 /* unused */ 687 #define SCTP_DEBUG_XXX 0x00080000 /* unused */ 688 #define SCTP_DEBUG_PCB1 0x00100000 689 #define SCTP_DEBUG_PCB2 0x00200000 /* unused */ 690 #define SCTP_DEBUG_PCB3 0x00400000 691 #define SCTP_DEBUG_PCB4 0x00800000 692 #define SCTP_DEBUG_INDATA1 0x01000000 693 #define SCTP_DEBUG_INDATA2 0x02000000 /* unused */ 694 #define SCTP_DEBUG_INDATA3 0x04000000 /* unused */ 695 #define SCTP_DEBUG_CRCOFFLOAD 0x08000000 /* unused */ 696 #define SCTP_DEBUG_USRREQ1 0x10000000 /* unused */ 697 #define SCTP_DEBUG_USRREQ2 0x20000000 /* unused */ 698 #define SCTP_DEBUG_PEEL1 0x40000000 699 #if defined(__Userspace__) 700 #define SCTP_DEBUG_USR 0x80000000 701 #else 702 #define SCTP_DEBUG_XXXXX 0x80000000 /* unused */ 703 #endif 704 #define SCTP_DEBUG_ALL 0x7ff3ffff 705 #define SCTP_DEBUG_NOISY 0x00040000 706 707 /* What sender needs to see to avoid SWS or we consider peers rwnd 0 */ 708 #define SCTP_SWS_SENDER_DEF 1420 709 710 /* 711 * SWS is scaled to the sb_hiwat of the socket. A value of 2 is hiwat/4, 1 712 * would be hiwat/2 etc. 713 */ 714 /* What receiver needs to see in sockbuf or we tell peer its 1 */ 715 #define SCTP_SWS_RECEIVER_DEF 3000 716 717 #define SCTP_INITIAL_CWND 4380 718 719 #define SCTP_DEFAULT_MTU 1500 /* emergency default MTU */ 720 /* amount peer is obligated to have in rwnd or I will abort */ 721 #define SCTP_MIN_RWND 1500 722 723 #define SCTP_DEFAULT_MAXSEGMENT 65535 724 725 #define SCTP_CHUNK_BUFFER_SIZE 512 726 #define SCTP_PARAM_BUFFER_SIZE 512 727 728 /* small chunk store for looking at chunk_list in auth */ 729 #define SCTP_SMALL_CHUNK_STORE 260 730 731 #define SCTP_HOW_MANY_SECRETS 2 /* how many secrets I keep */ 732 733 #define SCTP_NUMBER_OF_SECRETS 8 /* or 8 * 4 = 32 octets */ 734 #define SCTP_SECRET_SIZE 32 /* number of octets in a 256 bits */ 735 736 737 /* 738 * SCTP upper layer notifications 739 */ 740 #define SCTP_NOTIFY_ASSOC_UP 1 741 #define SCTP_NOTIFY_ASSOC_DOWN 2 742 #define SCTP_NOTIFY_INTERFACE_DOWN 3 743 #define SCTP_NOTIFY_INTERFACE_UP 4 744 #define SCTP_NOTIFY_SENT_DG_FAIL 5 745 #define SCTP_NOTIFY_UNSENT_DG_FAIL 6 746 #define SCTP_NOTIFY_SPECIAL_SP_FAIL 7 747 #define SCTP_NOTIFY_ASSOC_LOC_ABORTED 8 748 #define SCTP_NOTIFY_ASSOC_REM_ABORTED 9 749 #define SCTP_NOTIFY_ASSOC_RESTART 10 750 #define SCTP_NOTIFY_PEER_SHUTDOWN 11 751 #define SCTP_NOTIFY_ASCONF_ADD_IP 12 752 #define SCTP_NOTIFY_ASCONF_DELETE_IP 13 753 #define SCTP_NOTIFY_ASCONF_SET_PRIMARY 14 754 #define SCTP_NOTIFY_PARTIAL_DELVIERY_INDICATION 15 755 #define SCTP_NOTIFY_INTERFACE_CONFIRMED 16 756 #define SCTP_NOTIFY_STR_RESET_RECV 17 757 #define SCTP_NOTIFY_STR_RESET_SEND 18 758 #define SCTP_NOTIFY_STR_RESET_FAILED_OUT 19 759 #define SCTP_NOTIFY_STR_RESET_FAILED_IN 20 760 #define SCTP_NOTIFY_STR_RESET_DENIED_OUT 21 761 #define SCTP_NOTIFY_STR_RESET_DENIED_IN 22 762 #define SCTP_NOTIFY_AUTH_NEW_KEY 23 763 #define SCTP_NOTIFY_AUTH_FREE_KEY 24 764 #define SCTP_NOTIFY_NO_PEER_AUTH 25 765 #define SCTP_NOTIFY_SENDER_DRY 26 766 #define SCTP_NOTIFY_REMOTE_ERROR 27 767 768 /* This is the value for messages that are NOT completely 769 * copied down where we will start to split the message. 770 * So, with our default, we split only if the piece we 771 * want to take will fill up a full MTU (assuming 772 * a 1500 byte MTU). 773 */ 774 #define SCTP_DEFAULT_SPLIT_POINT_MIN 2904 775 776 /* Maximum length of diagnostic information in error causes */ 777 #define SCTP_DIAG_INFO_LEN 128 778 779 /* ABORT CODES and other tell-tale location 780 * codes are generated by adding the below 781 * to the instance id. 782 */ 783 784 /* File defines */ 785 #define SCTP_FROM_SCTP_INPUT 0x10000000 786 #define SCTP_FROM_SCTP_PCB 0x20000000 787 #define SCTP_FROM_SCTP_INDATA 0x30000000 788 #define SCTP_FROM_SCTP_TIMER 0x40000000 789 #define SCTP_FROM_SCTP_USRREQ 0x50000000 790 #define SCTP_FROM_SCTPUTIL 0x60000000 791 #define SCTP_FROM_SCTP6_USRREQ 0x70000000 792 #define SCTP_FROM_SCTP_ASCONF 0x80000000 793 #define SCTP_FROM_SCTP_OUTPUT 0x90000000 794 #define SCTP_FROM_SCTP_PEELOFF 0xa0000000 795 #define SCTP_FROM_SCTP_PANDA 0xb0000000 796 #define SCTP_FROM_SCTP_SYSCTL 0xc0000000 797 #define SCTP_FROM_SCTP_CC_FUNCTIONS 0xd0000000 798 799 /* Location ID's */ 800 #define SCTP_LOC_1 0x00000001 801 #define SCTP_LOC_2 0x00000002 802 #define SCTP_LOC_3 0x00000003 803 #define SCTP_LOC_4 0x00000004 804 #define SCTP_LOC_5 0x00000005 805 #define SCTP_LOC_6 0x00000006 806 #define SCTP_LOC_7 0x00000007 807 #define SCTP_LOC_8 0x00000008 808 #define SCTP_LOC_9 0x00000009 809 #define SCTP_LOC_10 0x0000000a 810 #define SCTP_LOC_11 0x0000000b 811 #define SCTP_LOC_12 0x0000000c 812 #define SCTP_LOC_13 0x0000000d 813 #define SCTP_LOC_14 0x0000000e 814 #define SCTP_LOC_15 0x0000000f 815 #define SCTP_LOC_16 0x00000010 816 #define SCTP_LOC_17 0x00000011 817 #define SCTP_LOC_18 0x00000012 818 #define SCTP_LOC_19 0x00000013 819 #define SCTP_LOC_20 0x00000014 820 #define SCTP_LOC_21 0x00000015 821 #define SCTP_LOC_22 0x00000016 822 #define SCTP_LOC_23 0x00000017 823 #define SCTP_LOC_24 0x00000018 824 #define SCTP_LOC_25 0x00000019 825 #define SCTP_LOC_26 0x0000001a 826 #define SCTP_LOC_27 0x0000001b 827 #define SCTP_LOC_28 0x0000001c 828 #define SCTP_LOC_29 0x0000001d 829 #define SCTP_LOC_30 0x0000001e 830 #define SCTP_LOC_31 0x0000001f 831 #define SCTP_LOC_32 0x00000020 832 #define SCTP_LOC_33 0x00000021 833 #define SCTP_LOC_34 0x00000022 834 #define SCTP_LOC_35 0x00000023 835 836 837 /* Free assoc codes */ 838 #define SCTP_NORMAL_PROC 0 839 #define SCTP_PCBFREE_NOFORCE 1 840 #define SCTP_PCBFREE_FORCE 2 841 842 /* From codes for adding addresses */ 843 #define SCTP_ADDR_IS_CONFIRMED 8 844 #define SCTP_ADDR_DYNAMIC_ADDED 6 845 #define SCTP_IN_COOKIE_PROC 100 846 #define SCTP_ALLOC_ASOC 1 847 #define SCTP_LOAD_ADDR_2 2 848 #define SCTP_LOAD_ADDR_3 3 849 #define SCTP_LOAD_ADDR_4 4 850 #define SCTP_LOAD_ADDR_5 5 851 852 #define SCTP_DONOT_SETSCOPE 0 853 #define SCTP_DO_SETSCOPE 1 854 855 856 /* This value determines the default for when 857 * we try to add more on the send queue., if 858 * there is room. This prevents us from cycling 859 * into the copy_resume routine to often if 860 * we have not got enough space to add a decent 861 * enough size message. Note that if we have enough 862 * space to complete the message copy we will always 863 * add to the message, no matter what the size. Its 864 * only when we reach the point that we have some left 865 * to add, there is only room for part of it that we 866 * will use this threshold. Its also a sysctl. 867 */ 868 #define SCTP_DEFAULT_ADD_MORE 1452 869 870 #ifndef SCTP_PCBHASHSIZE 871 /* default number of association hash buckets in each endpoint */ 872 #define SCTP_PCBHASHSIZE 256 873 #endif 874 #ifndef SCTP_TCBHASHSIZE 875 #define SCTP_TCBHASHSIZE 1024 876 #endif 877 878 #ifndef SCTP_CHUNKQUEUE_SCALE 879 #define SCTP_CHUNKQUEUE_SCALE 10 880 #endif 881 882 #ifdef __FreeBSD__ 883 /* clock variance is 1 ms */ 884 #define SCTP_CLOCK_GRANULARITY 1 885 #else 886 /* clock variance is 10 ms */ 887 #define SCTP_CLOCK_GRANULARITY 10 888 #endif 889 #define IP_HDR_SIZE 40 /* we use the size of a IP6 header here this 890 * detracts a small amount for ipv4 but it 891 * simplifies the ipv6 addition */ 892 893 /* Argument magic number for sctp_inpcb_free() */ 894 895 /* third argument */ 896 #define SCTP_CALLED_DIRECTLY_NOCMPSET 0 897 #define SCTP_CALLED_AFTER_CMPSET_OFCLOSE 1 898 #define SCTP_CALLED_FROM_INPKILL_TIMER 2 899 /* second argument */ 900 #define SCTP_FREE_SHOULD_USE_ABORT 1 901 #define SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE 0 902 903 #ifndef IPPROTO_SCTP 904 #define IPPROTO_SCTP 132 /* the Official IANA number :-) */ 905 #endif /* !IPPROTO_SCTP */ 906 907 #define SCTP_MAX_DATA_BUNDLING 256 908 909 /* modular comparison */ 910 /* See RFC 1982 for details. */ 911 #define SCTP_UINT16_GT(a, b) (((a < b) && ((uint16_t)(b - a) > (1U<<15))) || \ 912 ((a > b) && ((uint16_t)(a - b) < (1U<<15)))) 913 #define SCTP_UINT16_GE(a, b) (SCTP_UINT16_GT(a, b) || (a == b)) 914 #define SCTP_UINT32_GT(a, b) (((a < b) && ((uint32_t)(b - a) > (1U<<31))) || \ 915 ((a > b) && ((uint32_t)(a - b) < (1U<<31)))) 916 #define SCTP_UINT32_GE(a, b) (SCTP_UINT32_GT(a, b) || (a == b)) 917 918 #define SCTP_SSN_GT(a, b) SCTP_UINT16_GT(a, b) 919 #define SCTP_SSN_GE(a, b) SCTP_UINT16_GE(a, b) 920 #define SCTP_TSN_GT(a, b) SCTP_UINT32_GT(a, b) 921 #define SCTP_TSN_GE(a, b) SCTP_UINT32_GE(a, b) 922 #define SCTP_MID_GT(i, a, b) (((i) == 1) ? SCTP_UINT32_GT(a, b) : SCTP_UINT16_GT((uint16_t)a, (uint16_t)b)) 923 #define SCTP_MID_GE(i, a, b) (((i) == 1) ? SCTP_UINT32_GE(a, b) : SCTP_UINT16_GE((uint16_t)a, (uint16_t)b)) 924 #define SCTP_MID_EQ(i, a, b) (((i) == 1) ? a == b : (uint16_t)a == (uint16_t)b) 925 926 /* Mapping array manipulation routines */ 927 #define SCTP_IS_TSN_PRESENT(arry, gap) ((arry[(gap >> 3)] >> (gap & 0x07)) & 0x01) 928 #define SCTP_SET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] |= (0x01 << ((gap & 0x07)))) 929 #define SCTP_UNSET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] &= ((~(0x01 << ((gap & 0x07)))) & 0xff)) 930 #define SCTP_CALC_TSN_TO_GAP(gap, tsn, mapping_tsn) do { \ 931 if (tsn >= mapping_tsn) { \ 932 gap = tsn - mapping_tsn; \ 933 } else { \ 934 gap = (MAX_TSN - mapping_tsn) + tsn + 1; \ 935 } \ 936 } while (0) 937 938 939 #define SCTP_RETRAN_DONE -1 940 #define SCTP_RETRAN_EXIT -2 941 942 /* 943 * This value defines the number of vtag block time wait entry's per list 944 * element. Each entry will take 2 4 byte ints (and of course the overhead 945 * of the next pointer as well). Using 15 as an example will yield * ((8 * 946 * 15) + 8) or 128 bytes of overhead for each timewait block that gets 947 * initialized. Increasing it to 31 would yield 256 bytes per block. 948 */ 949 #define SCTP_NUMBER_IN_VTAG_BLOCK 15 950 /* 951 * If we use the STACK option, we have an array of this size head pointers. 952 * This array is mod'd the with the size to find which bucket and then all 953 * entries must be searched to see if the tag is in timed wait. If so we 954 * reject it. 955 */ 956 #define SCTP_STACK_VTAG_HASH_SIZE 32 957 958 /* 959 * Number of seconds of time wait for a vtag. 960 */ 961 #define SCTP_TIME_WAIT 60 962 963 /* How many micro seconds is the cutoff from 964 * local lan type rtt's 965 */ 966 /* 967 * We allow 900us for the rtt. 968 */ 969 #define SCTP_LOCAL_LAN_RTT 900 970 #define SCTP_LAN_UNKNOWN 0 971 #define SCTP_LAN_LOCAL 1 972 #define SCTP_LAN_INTERNET 2 973 974 #define SCTP_SEND_BUFFER_SPLITTING 0x00000001 975 #define SCTP_RECV_BUFFER_SPLITTING 0x00000002 976 977 /* The system retains a cache of free chunks such to 978 * cut down on calls the memory allocation system. There 979 * is a per association limit of free items and a overall 980 * system limit. If either one gets hit then the resource 981 * stops being cached. 982 */ 983 984 #define SCTP_DEF_ASOC_RESC_LIMIT 10 985 #define SCTP_DEF_SYSTEM_RESC_LIMIT 1000 986 987 /*- 988 * defines for socket lock states. 989 * Used by __APPLE__ and SCTP_SO_LOCK_TESTING 990 */ 991 #define SCTP_SO_LOCKED 1 992 #define SCTP_SO_NOT_LOCKED 0 993 994 995 /*- 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 1012 #define IN4_ISLINKLOCAL_ADDRESS(a) \ 1013 ((((uint8_t *)&(a)->s_addr)[0] == 169) && \ 1014 (((uint8_t *)&(a)->s_addr)[1] == 254)) 1015 1016 #if defined(__Userspace__) 1017 #if defined(__Userspace_os_Windows) 1018 #define SCTP_GETTIME_TIMEVAL(x) getwintimeofday(x) 1019 #define SCTP_GETPTIME_TIMEVAL(x) getwintimeofday(x) /* this doesn't seem to ever be used.. */ 1020 #else 1021 #define SCTP_GETTIME_TIMEVAL(x) gettimeofday(x, NULL) 1022 #define SCTP_GETPTIME_TIMEVAL(x) gettimeofday(x, NULL) 1023 #endif 1024 #endif 1025 1026 #if defined(_KERNEL) 1027 #define SCTP_GETTIME_TIMEVAL(x) (getmicrouptime(x)) 1028 #define SCTP_GETPTIME_TIMEVAL(x) (microuptime(x)) 1029 #endif 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 #if defined(__FreeBSD__) || defined(__Windows__) || defined(__Userspace__) 1042 #define sctp_sowwakeup_locked(inp, so) \ 1043 do { \ 1044 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1045 SOCKBUF_UNLOCK(&((so)->so_snd)); \ 1046 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \ 1047 } else { \ 1048 sowwakeup_locked(so); \ 1049 } \ 1050 } while (0) 1051 #else 1052 #define sctp_sowwakeup_locked(inp, so) \ 1053 do { \ 1054 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1055 SOCKBUF_UNLOCK(&((so)->so_snd)); \ 1056 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \ 1057 } else { \ 1058 sowwakeup(so); \ 1059 } \ 1060 } while (0) 1061 #endif 1062 1063 #define sctp_sorwakeup(inp, so) \ 1064 do { \ 1065 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1066 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \ 1067 } else { \ 1068 sorwakeup(so); \ 1069 } \ 1070 } while (0) 1071 1072 #if defined(__FreeBSD__) || defined(__Windows__) || defined(__Userspace__) 1073 #define sctp_sorwakeup_locked(inp, so) \ 1074 do { \ 1075 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1076 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \ 1077 SOCKBUF_UNLOCK(&((so)->so_rcv)); \ 1078 } else { \ 1079 sorwakeup_locked(so); \ 1080 } \ 1081 } while (0) 1082 #else 1083 1084 #define sctp_sorwakeup_locked(inp, so) \ 1085 do { \ 1086 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1087 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \ 1088 SOCKBUF_UNLOCK(&((so)->so_rcv)); \ 1089 } else { \ 1090 sorwakeup(so); \ 1091 } \ 1092 } while (0) 1093 #endif 1094 1095 #endif /* _KERNEL || __Userspace__*/ 1096 #endif 1097