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 #include <sys/cdefs.h> 36 __FBSDID("$FreeBSD$"); 37 38 #ifndef _NETINET_SCTP_CONSTANTS_H_ 39 #define _NETINET_SCTP_CONSTANTS_H_ 40 41 42 /* IANA assigned port number for SCTP over UDP encapsulation */ 43 #define SCTP_OVER_UDP_TUNNELING_PORT 9899 44 45 /* Number of packets to get before sack sent by default */ 46 #define SCTP_DEFAULT_SACK_FREQ 2 47 48 /* Address limit - This variable is calculated 49 * based on an 65535 byte max ip packet. We take out 100 bytes 50 * for the cookie, 40 bytes for a v6 header and 32 51 * bytes for the init structure. A second init structure 52 * for the init-ack and then finally a third one for the 53 * imbedded init. This yeilds 100+40+(3 * 32) = 236 bytes. 54 * This leaves 65299 bytes for addresses. We throw out the 299 bytes. 55 * Now whatever we send in the INIT() we need to allow to get back in the 56 * INIT-ACK plus all the values from INIT and INIT-ACK 57 * listed in the cookie. Plus we need some overhead for 58 * maybe copied parameters in the COOKIE. If we 59 * allow 1080 addresses, and each side has 1080 V6 addresses 60 * that will be 21600 bytes. In the INIT-ACK we will 61 * see the INIT-ACK 21600 + 43200 in the cookie. This leaves 62 * about 500 bytes slack for misc things in the cookie. 63 */ 64 #define SCTP_ADDRESS_LIMIT 1080 65 66 /* We need at least 2k of space for us, inits 67 * larger than that lets abort. 68 */ 69 #define SCTP_LARGEST_INIT_ACCEPTED (65535 - 2048) 70 71 /* Largest length of a chunk */ 72 #define SCTP_MAX_CHUNK_LENGTH 0xffff 73 /* Largest length of an error cause */ 74 #define SCTP_MAX_CAUSE_LENGTH 0xffff 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 91 #define SCTP_KTRHEAD_NAME "sctp_iterator" 92 #define SCTP_KTHREAD_PAGES 0 93 94 #define SCTP_MCORE_NAME "sctp_core_worker" 95 96 97 /* If you support Multi-VRF how big to 98 * make the initial array of VRF's to. 99 */ 100 #define SCTP_DEFAULT_VRF_SIZE 4 101 102 /* JRS - Values defined for the HTCP algorithm */ 103 #define ALPHA_BASE (1<<7) /* 1.0 with shift << 7 */ 104 #define BETA_MIN (1<<6) /* 0.5 with shift << 7 */ 105 #define BETA_MAX 102 /* 0.8 with shift << 7 */ 106 107 /* Places that CWND log can happen from */ 108 #define SCTP_CWND_LOG_FROM_FR 1 109 #define SCTP_CWND_LOG_FROM_RTX 2 110 #define SCTP_CWND_LOG_FROM_BRST 3 111 #define SCTP_CWND_LOG_FROM_SS 4 112 #define SCTP_CWND_LOG_FROM_CA 5 113 #define SCTP_CWND_LOG_FROM_SAT 6 114 #define SCTP_BLOCK_LOG_INTO_BLK 7 115 #define SCTP_BLOCK_LOG_OUTOF_BLK 8 116 #define SCTP_BLOCK_LOG_CHECK 9 117 #define SCTP_STR_LOG_FROM_INTO_STRD 10 118 #define SCTP_STR_LOG_FROM_IMMED_DEL 11 119 #define SCTP_STR_LOG_FROM_INSERT_HD 12 120 #define SCTP_STR_LOG_FROM_INSERT_MD 13 121 #define SCTP_STR_LOG_FROM_INSERT_TL 14 122 #define SCTP_STR_LOG_FROM_MARK_TSN 15 123 #define SCTP_STR_LOG_FROM_EXPRS_DEL 16 124 #define SCTP_FR_LOG_BIGGEST_TSNS 17 125 #define SCTP_FR_LOG_STRIKE_TEST 18 126 #define SCTP_FR_LOG_STRIKE_CHUNK 19 127 #define SCTP_FR_T3_TIMEOUT 20 128 #define SCTP_MAP_PREPARE_SLIDE 21 129 #define SCTP_MAP_SLIDE_FROM 22 130 #define SCTP_MAP_SLIDE_RESULT 23 131 #define SCTP_MAP_SLIDE_CLEARED 24 132 #define SCTP_MAP_SLIDE_NONE 25 133 #define SCTP_FR_T3_MARK_TIME 26 134 #define SCTP_FR_T3_MARKED 27 135 #define SCTP_FR_T3_STOPPED 28 136 #define SCTP_FR_MARKED 30 137 #define SCTP_CWND_LOG_NOADV_SS 31 138 #define SCTP_CWND_LOG_NOADV_CA 32 139 #define SCTP_MAX_BURST_APPLIED 33 140 #define SCTP_MAX_IFP_APPLIED 34 141 #define SCTP_MAX_BURST_ERROR_STOP 35 142 #define SCTP_INCREASE_PEER_RWND 36 143 #define SCTP_DECREASE_PEER_RWND 37 144 #define SCTP_SET_PEER_RWND_VIA_SACK 38 145 #define SCTP_LOG_MBCNT_INCREASE 39 146 #define SCTP_LOG_MBCNT_DECREASE 40 147 #define SCTP_LOG_MBCNT_CHKSET 41 148 #define SCTP_LOG_NEW_SACK 42 149 #define SCTP_LOG_TSN_ACKED 43 150 #define SCTP_LOG_TSN_REVOKED 44 151 #define SCTP_LOG_LOCK_TCB 45 152 #define SCTP_LOG_LOCK_INP 46 153 #define SCTP_LOG_LOCK_SOCK 47 154 #define SCTP_LOG_LOCK_SOCKBUF_R 48 155 #define SCTP_LOG_LOCK_SOCKBUF_S 49 156 #define SCTP_LOG_LOCK_CREATE 50 157 #define SCTP_LOG_INITIAL_RTT 51 158 #define SCTP_LOG_RTTVAR 52 159 #define SCTP_LOG_SBALLOC 53 160 #define SCTP_LOG_SBFREE 54 161 #define SCTP_LOG_SBRESULT 55 162 #define SCTP_FR_DUPED 56 163 #define SCTP_FR_MARKED_EARLY 57 164 #define SCTP_FR_CWND_REPORT 58 165 #define SCTP_FR_CWND_REPORT_START 59 166 #define SCTP_FR_CWND_REPORT_STOP 60 167 #define SCTP_CWND_LOG_FROM_SEND 61 168 #define SCTP_CWND_INITIALIZATION 62 169 #define SCTP_CWND_LOG_FROM_T3 63 170 #define SCTP_CWND_LOG_FROM_SACK 64 171 #define SCTP_CWND_LOG_NO_CUMACK 65 172 #define SCTP_CWND_LOG_FROM_RESEND 66 173 #define SCTP_FR_LOG_CHECK_STRIKE 67 174 #define SCTP_SEND_NOW_COMPLETES 68 175 #define SCTP_CWND_LOG_FILL_OUTQ_CALLED 69 176 #define SCTP_CWND_LOG_FILL_OUTQ_FILLS 70 177 #define SCTP_LOG_FREE_SENT 71 178 #define SCTP_NAGLE_APPLIED 72 179 #define SCTP_NAGLE_SKIPPED 73 180 #define SCTP_WAKESND_FROM_SACK 74 181 #define SCTP_WAKESND_FROM_FWDTSN 75 182 #define SCTP_NOWAKE_FROM_SACK 76 183 #define SCTP_CWNDLOG_PRESEND 77 184 #define SCTP_CWNDLOG_ENDSEND 78 185 #define SCTP_AT_END_OF_SACK 79 186 #define SCTP_REASON_FOR_SC 80 187 #define SCTP_BLOCK_LOG_INTO_BLKA 81 188 #define SCTP_ENTER_USER_RECV 82 189 #define SCTP_USER_RECV_SACKS 83 190 #define SCTP_SORECV_BLOCKSA 84 191 #define SCTP_SORECV_BLOCKSB 85 192 #define SCTP_SORECV_DONE 86 193 #define SCTP_SACK_RWND_UPDATE 87 194 #define SCTP_SORECV_ENTER 88 195 #define SCTP_SORECV_ENTERPL 89 196 #define SCTP_MBUF_INPUT 90 197 #define SCTP_MBUF_IALLOC 91 198 #define SCTP_MBUF_IFREE 92 199 #define SCTP_MBUF_ICOPY 93 200 #define SCTP_MBUF_SPLIT 94 201 #define SCTP_SORCV_FREECTL 95 202 #define SCTP_SORCV_DOESCPY 96 203 #define SCTP_SORCV_DOESLCK 97 204 #define SCTP_SORCV_DOESADJ 98 205 #define SCTP_SORCV_BOTWHILE 99 206 #define SCTP_SORCV_PASSBF 100 207 #define SCTP_SORCV_ADJD 101 208 #define SCTP_UNKNOWN_MAX 102 209 #define SCTP_RANDY_STUFF 103 210 #define SCTP_RANDY_STUFF1 104 211 #define SCTP_STRMOUT_LOG_ASSIGN 105 212 #define SCTP_STRMOUT_LOG_SEND 106 213 #define SCTP_FLIGHT_LOG_DOWN_CA 107 214 #define SCTP_FLIGHT_LOG_UP 108 215 #define SCTP_FLIGHT_LOG_DOWN_GAP 109 216 #define SCTP_FLIGHT_LOG_DOWN_RSND 110 217 #define SCTP_FLIGHT_LOG_UP_RSND 111 218 #define SCTP_FLIGHT_LOG_DOWN_RSND_TO 112 219 #define SCTP_FLIGHT_LOG_DOWN_WP 113 220 #define SCTP_FLIGHT_LOG_UP_REVOKE 114 221 #define SCTP_FLIGHT_LOG_DOWN_PDRP 115 222 #define SCTP_FLIGHT_LOG_DOWN_PMTU 116 223 #define SCTP_SACK_LOG_NORMAL 117 224 #define SCTP_SACK_LOG_EXPRESS 118 225 #define SCTP_MAP_TSN_ENTERS 119 226 #define SCTP_THRESHOLD_CLEAR 120 227 #define SCTP_THRESHOLD_INCR 121 228 #define SCTP_FLIGHT_LOG_DWN_WP_FWD 122 229 #define SCTP_FWD_TSN_CHECK 123 230 #define SCTP_LOG_MAX_TYPES 124 231 /* 232 * To turn on various logging, you must first enable 'options KTR' and 233 * you might want to bump the entires 'options KTR_ENTRIES=80000'. 234 * To get something to log you define one of the logging defines. 235 * (see LINT). 236 * 237 * This gets the compile in place, but you still need to turn the 238 * logging flag on too in the sysctl (see in sctp.h). 239 */ 240 241 #define SCTP_LOG_EVENT_UNKNOWN 0 242 #define SCTP_LOG_EVENT_CWND 1 243 #define SCTP_LOG_EVENT_BLOCK 2 244 #define SCTP_LOG_EVENT_STRM 3 245 #define SCTP_LOG_EVENT_FR 4 246 #define SCTP_LOG_EVENT_MAP 5 247 #define SCTP_LOG_EVENT_MAXBURST 6 248 #define SCTP_LOG_EVENT_RWND 7 249 #define SCTP_LOG_EVENT_MBCNT 8 250 #define SCTP_LOG_EVENT_SACK 9 251 #define SCTP_LOG_LOCK_EVENT 10 252 #define SCTP_LOG_EVENT_RTT 11 253 #define SCTP_LOG_EVENT_SB 12 254 #define SCTP_LOG_EVENT_NAGLE 13 255 #define SCTP_LOG_EVENT_WAKE 14 256 #define SCTP_LOG_MISC_EVENT 15 257 #define SCTP_LOG_EVENT_CLOSE 16 258 #define SCTP_LOG_EVENT_MBUF 17 259 #define SCTP_LOG_CHUNK_PROC 18 260 #define SCTP_LOG_ERROR_RET 19 261 262 #define SCTP_LOG_MAX_EVENT 20 263 264 #define SCTP_LOCK_UNKNOWN 2 265 266 267 /* number of associations by default for zone allocation */ 268 #define SCTP_MAX_NUM_OF_ASOC 40000 269 /* how many addresses per assoc remote and local */ 270 #define SCTP_SCALE_FOR_ADDR 2 271 272 /* default MULTIPLE_ASCONF mode enable(1)/disable(0) value (sysctl) */ 273 #define SCTP_DEFAULT_MULTIPLE_ASCONFS 0 274 275 /* 276 * Threshold for rwnd updates, we have to read (sb_hiwat >> 277 * SCTP_RWND_HIWAT_SHIFT) before we will look to see if we need to send a 278 * window update sack. When we look, we compare the last rwnd we sent vs the 279 * current rwnd. It too must be greater than this value. Using 3 divdes the 280 * hiwat by 8, so for 200k rwnd we need to read 24k. For a 64k rwnd we need 281 * to read 8k. This seems about right.. I hope :-D.. we do set a 282 * min of a MTU on it so if the rwnd is real small we will insist 283 * on a full MTU of 1500 bytes. 284 */ 285 #define SCTP_RWND_HIWAT_SHIFT 3 286 287 /* How much of the rwnd must the 288 * message be taking up to start partial delivery. 289 * We calculate this by shifing the hi_water (recv_win) 290 * left the following .. set to 1, when a message holds 291 * 1/2 the rwnd. If we set it to 2 when a message holds 292 * 1/4 the rwnd...etc.. 293 */ 294 295 #define SCTP_PARTIAL_DELIVERY_SHIFT 1 296 297 /* 298 * default HMAC for cookies, etc... use one of the AUTH HMAC id's 299 * SCTP_HMAC is the HMAC_ID to use 300 * SCTP_SIGNATURE_SIZE is the digest length 301 */ 302 #define SCTP_HMAC SCTP_AUTH_HMAC_ID_SHA1 303 #define SCTP_SIGNATURE_SIZE SCTP_AUTH_DIGEST_LEN_SHA1 304 #define SCTP_SIGNATURE_ALOC_SIZE SCTP_SIGNATURE_SIZE 305 306 /* 307 * the SCTP protocol signature this includes the version number encoded in 308 * the last 4 bits of the signature. 309 */ 310 #define PROTO_SIGNATURE_A 0x30000000 311 #define SCTP_VERSION_NUMBER 0x3 312 313 #define MAX_TSN 0xffffffff 314 315 /* how many executions every N tick's */ 316 #define SCTP_ITERATOR_MAX_AT_ONCE 20 317 318 /* number of clock ticks between iterator executions */ 319 #define SCTP_ITERATOR_TICKS 1 320 321 /* 322 * option: If you comment out the following you will receive the old behavior 323 * of obeying cwnd for the fast retransmit algorithm. With this defined a FR 324 * happens right away with-out waiting for the flightsize to drop below the 325 * cwnd value (which is reduced by the FR to 1/2 the inflight packets). 326 */ 327 #define SCTP_IGNORE_CWND_ON_FR 1 328 329 /* 330 * Adds implementors guide behavior to only use newest highest update in SACK 331 * gap ack's to figure out if you need to stroke a chunk for FR. 332 */ 333 #define SCTP_NO_FR_UNLESS_SEGMENT_SMALLER 1 334 335 /* default max I can burst out after a fast retransmit, 0 disables it */ 336 #define SCTP_DEF_MAX_BURST 4 337 #define SCTP_DEF_HBMAX_BURST 4 338 #define SCTP_DEF_FRMAX_BURST 4 339 340 /* RTO calculation flag to say if it 341 * is safe to determine local lan or not. 342 */ 343 #define SCTP_RTT_FROM_NON_DATA 0 344 #define SCTP_RTT_FROM_DATA 1 345 346 #define PR_SCTP_UNORDERED_FLAG 0x0001 347 348 /* IP hdr (20/40) + 12+2+2 (enet) + sctp common 12 */ 349 #define SCTP_FIRST_MBUF_RESV 68 350 /* Packet transmit states in the sent field */ 351 #define SCTP_DATAGRAM_UNSENT 0 352 #define SCTP_DATAGRAM_SENT 1 353 #define SCTP_DATAGRAM_RESEND1 2 /* not used (in code, but may 354 * hit this value) */ 355 #define SCTP_DATAGRAM_RESEND2 3 /* not used (in code, but may 356 * hit this value) */ 357 #define SCTP_DATAGRAM_RESEND 4 358 #define SCTP_DATAGRAM_ACKED 10010 359 #define SCTP_DATAGRAM_MARKED 20010 360 #define SCTP_FORWARD_TSN_SKIP 30010 361 #define SCTP_DATAGRAM_NR_ACKED 40010 362 363 /* chunk output send from locations */ 364 #define SCTP_OUTPUT_FROM_USR_SEND 0 365 #define SCTP_OUTPUT_FROM_T3 1 366 #define SCTP_OUTPUT_FROM_INPUT_ERROR 2 367 #define SCTP_OUTPUT_FROM_CONTROL_PROC 3 368 #define SCTP_OUTPUT_FROM_SACK_TMR 4 369 #define SCTP_OUTPUT_FROM_SHUT_TMR 5 370 #define SCTP_OUTPUT_FROM_HB_TMR 6 371 #define SCTP_OUTPUT_FROM_SHUT_ACK_TMR 7 372 #define SCTP_OUTPUT_FROM_ASCONF_TMR 8 373 #define SCTP_OUTPUT_FROM_STRRST_TMR 9 374 #define SCTP_OUTPUT_FROM_AUTOCLOSE_TMR 10 375 #define SCTP_OUTPUT_FROM_EARLY_FR_TMR 11 376 #define SCTP_OUTPUT_FROM_STRRST_REQ 12 377 #define SCTP_OUTPUT_FROM_USR_RCVD 13 378 #define SCTP_OUTPUT_FROM_COOKIE_ACK 14 379 #define SCTP_OUTPUT_FROM_DRAIN 15 380 #define SCTP_OUTPUT_FROM_CLOSING 16 381 #define SCTP_OUTPUT_FROM_SOCKOPT 17 382 383 /* SCTP chunk types are moved sctp.h for application (NAT, FW) use */ 384 385 /* align to 32-bit sizes */ 386 #define SCTP_SIZE32(x) ((((x) + 3) >> 2) << 2) 387 388 #define IS_SCTP_CONTROL(a) (((a)->chunk_type != SCTP_DATA) && ((a)->chunk_type != SCTP_IDATA)) 389 #define IS_SCTP_DATA(a) (((a)->chunk_type == SCTP_DATA) || ((a)->chunk_type == SCTP_IDATA)) 390 391 392 /* SCTP parameter types */ 393 /*************0x0000 series*************/ 394 #define SCTP_HEARTBEAT_INFO 0x0001 395 #define SCTP_IPV4_ADDRESS 0x0005 396 #define SCTP_IPV6_ADDRESS 0x0006 397 #define SCTP_STATE_COOKIE 0x0007 398 #define SCTP_UNRECOG_PARAM 0x0008 399 #define SCTP_COOKIE_PRESERVE 0x0009 400 #define SCTP_HOSTNAME_ADDRESS 0x000b 401 #define SCTP_SUPPORTED_ADDRTYPE 0x000c 402 403 /* RFC 6525 */ 404 #define SCTP_STR_RESET_OUT_REQUEST 0x000d 405 #define SCTP_STR_RESET_IN_REQUEST 0x000e 406 #define SCTP_STR_RESET_TSN_REQUEST 0x000f 407 #define SCTP_STR_RESET_RESPONSE 0x0010 408 #define SCTP_STR_RESET_ADD_OUT_STREAMS 0x0011 409 #define SCTP_STR_RESET_ADD_IN_STREAMS 0x0012 410 411 #define SCTP_MAX_RESET_PARAMS 2 412 #define SCTP_STREAM_RESET_TSN_DELTA 0x1000 413 414 /*************0x4000 series*************/ 415 416 /*************0x8000 series*************/ 417 #define SCTP_ECN_CAPABLE 0x8000 418 419 /* RFC 4895 */ 420 #define SCTP_RANDOM 0x8002 421 #define SCTP_CHUNK_LIST 0x8003 422 #define SCTP_HMAC_LIST 0x8004 423 /* RFC 4820 */ 424 #define SCTP_PAD 0x8005 425 /* RFC 5061 */ 426 #define SCTP_SUPPORTED_CHUNK_EXT 0x8008 427 428 /*************0xC000 series*************/ 429 #define SCTP_PRSCTP_SUPPORTED 0xc000 430 /* RFC 5061 */ 431 #define SCTP_ADD_IP_ADDRESS 0xc001 432 #define SCTP_DEL_IP_ADDRESS 0xc002 433 #define SCTP_ERROR_CAUSE_IND 0xc003 434 #define SCTP_SET_PRIM_ADDR 0xc004 435 #define SCTP_SUCCESS_REPORT 0xc005 436 #define SCTP_ULP_ADAPTATION 0xc006 437 /* behave-nat-draft */ 438 #define SCTP_HAS_NAT_SUPPORT 0xc007 439 #define SCTP_NAT_VTAGS 0xc008 440 441 /* bits for TOS field */ 442 #define SCTP_ECT0_BIT 0x02 443 #define SCTP_ECT1_BIT 0x01 444 #define SCTP_CE_BITS 0x03 445 446 /* below turns off above */ 447 #define SCTP_FLEXIBLE_ADDRESS 0x20 448 #define SCTP_NO_HEARTBEAT 0x40 449 450 /* mask to get sticky */ 451 #define SCTP_STICKY_OPTIONS_MASK 0x0c 452 453 454 /* 455 * SCTP states for internal state machine 456 */ 457 #define SCTP_STATE_EMPTY 0x0000 458 #define SCTP_STATE_INUSE 0x0001 459 #define SCTP_STATE_COOKIE_WAIT 0x0002 460 #define SCTP_STATE_COOKIE_ECHOED 0x0004 461 #define SCTP_STATE_OPEN 0x0008 462 #define SCTP_STATE_SHUTDOWN_SENT 0x0010 463 #define SCTP_STATE_SHUTDOWN_RECEIVED 0x0020 464 #define SCTP_STATE_SHUTDOWN_ACK_SENT 0x0040 465 #define SCTP_STATE_SHUTDOWN_PENDING 0x0080 466 #define SCTP_STATE_CLOSED_SOCKET 0x0100 467 #define SCTP_STATE_ABOUT_TO_BE_FREED 0x0200 468 #define SCTP_STATE_PARTIAL_MSG_LEFT 0x0400 469 #define SCTP_STATE_WAS_ABORTED 0x0800 470 #define SCTP_STATE_IN_ACCEPT_QUEUE 0x1000 471 #define SCTP_STATE_MASK 0x007f 472 473 #define SCTP_GET_STATE(_stcb) \ 474 ((_stcb)->asoc.state & SCTP_STATE_MASK) 475 #define SCTP_SET_STATE(_stcb, _state) \ 476 sctp_set_state(_stcb, _state) 477 #define SCTP_CLEAR_SUBSTATE(_stcb, _substate) \ 478 (_stcb)->asoc.state &= ~(_substate) 479 #define SCTP_ADD_SUBSTATE(_stcb, _substate) \ 480 sctp_add_substate(_stcb, _substate) 481 482 /* SCTP reachability state for each address */ 483 #define SCTP_ADDR_REACHABLE 0x001 484 #define SCTP_ADDR_NO_PMTUD 0x002 485 #define SCTP_ADDR_NOHB 0x004 486 #define SCTP_ADDR_BEING_DELETED 0x008 487 #define SCTP_ADDR_NOT_IN_ASSOC 0x010 488 #define SCTP_ADDR_OUT_OF_SCOPE 0x080 489 #define SCTP_ADDR_UNCONFIRMED 0x200 490 #define SCTP_ADDR_REQ_PRIMARY 0x400 491 /* JRS 5/13/07 - Added potentially failed state for CMT PF */ 492 #define SCTP_ADDR_PF 0x800 493 494 /* bound address types (e.g. valid address types to allow) */ 495 #define SCTP_BOUND_V6 0x01 496 #define SCTP_BOUND_V4 0x02 497 498 /* 499 * what is the default number of mbufs in a chain I allow before switching to 500 * a cluster 501 */ 502 #define SCTP_DEFAULT_MBUFS_IN_CHAIN 5 503 504 /* How long a cookie lives in milli-seconds */ 505 #define SCTP_DEFAULT_COOKIE_LIFE 60000 506 507 /* Maximum the mapping array will grow to (TSN mapping array) */ 508 #define SCTP_MAPPING_ARRAY 512 509 510 /* size of the initial malloc on the mapping array */ 511 #define SCTP_INITIAL_MAPPING_ARRAY 16 512 /* how much we grow the mapping array each call */ 513 #define SCTP_MAPPING_ARRAY_INCR 32 514 515 /* 516 * Here we define the timer types used by the implementation as arguments in 517 * the set/get timer type calls. 518 */ 519 #define SCTP_TIMER_INIT 0 520 #define SCTP_TIMER_RECV 1 521 #define SCTP_TIMER_SEND 2 522 #define SCTP_TIMER_HEARTBEAT 3 523 #define SCTP_TIMER_PMTU 4 524 #define SCTP_TIMER_MAXSHUTDOWN 5 525 #define SCTP_TIMER_SIGNATURE 6 526 /* 527 * number of timer types in the base SCTP structure used in the set/get and 528 * has the base default. 529 */ 530 #define SCTP_NUM_TMRS 7 531 532 /* timer types */ 533 #define SCTP_TIMER_TYPE_NONE 0 534 #define SCTP_TIMER_TYPE_SEND 1 535 #define SCTP_TIMER_TYPE_INIT 2 536 #define SCTP_TIMER_TYPE_RECV 3 537 #define SCTP_TIMER_TYPE_SHUTDOWN 4 538 #define SCTP_TIMER_TYPE_HEARTBEAT 5 539 #define SCTP_TIMER_TYPE_COOKIE 6 540 #define SCTP_TIMER_TYPE_NEWCOOKIE 7 541 #define SCTP_TIMER_TYPE_PATHMTURAISE 8 542 #define SCTP_TIMER_TYPE_SHUTDOWNACK 9 543 #define SCTP_TIMER_TYPE_ASCONF 10 544 #define SCTP_TIMER_TYPE_SHUTDOWNGUARD 11 545 #define SCTP_TIMER_TYPE_AUTOCLOSE 12 546 #define SCTP_TIMER_TYPE_EVENTWAKE 13 547 #define SCTP_TIMER_TYPE_STRRESET 14 548 #define SCTP_TIMER_TYPE_INPKILL 15 549 #define SCTP_TIMER_TYPE_ASOCKILL 16 550 #define SCTP_TIMER_TYPE_ADDR_WQ 17 551 #define SCTP_TIMER_TYPE_PRIM_DELETED 18 552 /* add new timers here - and increment LAST */ 553 #define SCTP_TIMER_TYPE_LAST 19 554 555 #define SCTP_IS_TIMER_TYPE_VALID(t) (((t) > SCTP_TIMER_TYPE_NONE) && \ 556 ((t) < SCTP_TIMER_TYPE_LAST)) 557 558 559 560 /* max number of TSN's dup'd that I will hold */ 561 #define SCTP_MAX_DUP_TSNS 20 562 563 /* 564 * Here we define the types used when setting the retry amounts. 565 */ 566 /* How many drop re-attempts we make on INIT/COOKIE-ECHO */ 567 #define SCTP_RETRY_DROPPED_THRESH 4 568 569 /* 570 * Maxmium number of chunks a single association can have on it. Note that 571 * this is a squishy number since the count can run over this if the user 572 * sends a large message down .. the fragmented chunks don't count until 573 * AFTER the message is on queue.. it would be the next send that blocks 574 * things. This number will get tuned up at boot in the sctp_init and use the 575 * number of clusters as a base. This way high bandwidth environments will 576 * not get impacted by the lower bandwidth sending a bunch of 1 byte chunks 577 */ 578 #define SCTP_ASOC_MAX_CHUNKS_ON_QUEUE 512 579 580 581 /* The conversion from time to ticks and vice versa is done by rounding 582 * upwards. This way we can test in the code the time to be positive and 583 * know that this corresponds to a positive number of ticks. 584 */ 585 #define MSEC_TO_TICKS(x) ((hz == 1000) ? x : ((((x) * hz) + 999) / 1000)) 586 #define TICKS_TO_MSEC(x) ((hz == 1000) ? x : ((((x) * 1000) + (hz - 1)) / hz)) 587 588 #define SEC_TO_TICKS(x) ((x) * hz) 589 #define TICKS_TO_SEC(x) (((x) + (hz - 1)) / hz) 590 591 /* 592 * Basically the minimum amount of time before I do a early FR. Making this 593 * value to low will cause duplicate retransmissions. 594 */ 595 #define SCTP_MINFR_MSEC_TIMER 250 596 /* The floor this value is allowed to fall to when starting a timer. */ 597 #define SCTP_MINFR_MSEC_FLOOR 20 598 599 /* init timer def = 1 sec */ 600 #define SCTP_INIT_SEC 1 601 602 /* send timer def = 1 seconds */ 603 #define SCTP_SEND_SEC 1 604 605 /* recv timer def = 200ms */ 606 #define SCTP_RECV_MSEC 200 607 608 /* 30 seconds + RTO (in ms) */ 609 #define SCTP_HB_DEFAULT_MSEC 30000 610 611 /* 612 * This is how long a secret lives, NOT how long a cookie lives how many 613 * ticks the current secret will live. 614 */ 615 #define SCTP_DEFAULT_SECRET_LIFE_SEC 3600 616 617 #define SCTP_RTO_UPPER_BOUND (60000) /* 60 sec in ms */ 618 #define SCTP_RTO_LOWER_BOUND (1000) /* 1 sec is ms */ 619 #define SCTP_RTO_INITIAL (3000) /* 3 sec in ms */ 620 621 622 #define SCTP_INP_KILL_TIMEOUT 20 /* number of ms to retry kill of inpcb */ 623 #define SCTP_ASOC_KILL_TIMEOUT 10 /* number of ms to retry kill of inpcb */ 624 625 #define SCTP_DEF_MAX_INIT 8 626 #define SCTP_DEF_MAX_SEND 10 627 #define SCTP_DEF_MAX_PATH_RTX 5 628 #define SCTP_DEF_PATH_PF_THRESHOLD SCTP_DEF_MAX_PATH_RTX 629 630 #define SCTP_DEF_PMTU_RAISE_SEC 600 /* 10 min between raise attempts */ 631 632 633 /* How many streams I request initially by default */ 634 #define SCTP_OSTREAM_INITIAL 10 635 #define SCTP_ISTREAM_INITIAL 2048 636 637 /* 638 * How many smallest_mtu's need to increase before a window update sack is 639 * sent (should be a power of 2). 640 */ 641 /* Send window update (incr * this > hiwat). Should be a power of 2 */ 642 #define SCTP_MINIMAL_RWND (4096) /* minimal rwnd */ 643 644 #define SCTP_ADDRMAX 16 645 646 /* SCTP DEBUG Switch parameters */ 647 #define SCTP_DEBUG_TIMER1 0x00000001 648 #define SCTP_DEBUG_TIMER2 0x00000002 /* unused */ 649 #define SCTP_DEBUG_TIMER3 0x00000004 /* unused */ 650 #define SCTP_DEBUG_TIMER4 0x00000008 651 #define SCTP_DEBUG_OUTPUT1 0x00000010 652 #define SCTP_DEBUG_OUTPUT2 0x00000020 653 #define SCTP_DEBUG_OUTPUT3 0x00000040 654 #define SCTP_DEBUG_OUTPUT4 0x00000080 655 #define SCTP_DEBUG_UTIL1 0x00000100 656 #define SCTP_DEBUG_UTIL2 0x00000200 /* unused */ 657 #define SCTP_DEBUG_AUTH1 0x00000400 658 #define SCTP_DEBUG_AUTH2 0x00000800 /* unused */ 659 #define SCTP_DEBUG_INPUT1 0x00001000 660 #define SCTP_DEBUG_INPUT2 0x00002000 661 #define SCTP_DEBUG_INPUT3 0x00004000 662 #define SCTP_DEBUG_INPUT4 0x00008000 /* unused */ 663 #define SCTP_DEBUG_ASCONF1 0x00010000 664 #define SCTP_DEBUG_ASCONF2 0x00020000 665 #define SCTP_DEBUG_OUTPUT5 0x00040000 /* unused */ 666 #define SCTP_DEBUG_XXX 0x00080000 /* unused */ 667 #define SCTP_DEBUG_PCB1 0x00100000 668 #define SCTP_DEBUG_PCB2 0x00200000 /* unused */ 669 #define SCTP_DEBUG_PCB3 0x00400000 670 #define SCTP_DEBUG_PCB4 0x00800000 671 #define SCTP_DEBUG_INDATA1 0x01000000 672 #define SCTP_DEBUG_INDATA2 0x02000000 /* unused */ 673 #define SCTP_DEBUG_INDATA3 0x04000000 /* unused */ 674 #define SCTP_DEBUG_CRCOFFLOAD 0x08000000 /* unused */ 675 #define SCTP_DEBUG_USRREQ1 0x10000000 /* unused */ 676 #define SCTP_DEBUG_USRREQ2 0x20000000 /* unused */ 677 #define SCTP_DEBUG_PEEL1 0x40000000 678 #define SCTP_DEBUG_XXXXX 0x80000000 /* unused */ 679 #define SCTP_DEBUG_ALL 0x7ff3ffff 680 #define SCTP_DEBUG_NOISY 0x00040000 681 682 /* What sender needs to see to avoid SWS or we consider peers rwnd 0 */ 683 #define SCTP_SWS_SENDER_DEF 1420 684 685 /* 686 * SWS is scaled to the sb_hiwat of the socket. A value of 2 is hiwat/4, 1 687 * would be hiwat/2 etc. 688 */ 689 /* What receiver needs to see in sockbuf or we tell peer its 1 */ 690 #define SCTP_SWS_RECEIVER_DEF 3000 691 692 #define SCTP_INITIAL_CWND 4380 693 694 #define SCTP_DEFAULT_MTU 1500 /* emergency default MTU */ 695 /* amount peer is obligated to have in rwnd or I will abort */ 696 #define SCTP_MIN_RWND 1500 697 698 #define SCTP_DEFAULT_MAXSEGMENT 65535 699 700 #define SCTP_CHUNK_BUFFER_SIZE 512 701 #define SCTP_PARAM_BUFFER_SIZE 512 702 703 /* small chunk store for looking at chunk_list in auth */ 704 #define SCTP_SMALL_CHUNK_STORE 260 705 706 #define SCTP_HOW_MANY_SECRETS 2 /* how many secrets I keep */ 707 708 #define SCTP_NUMBER_OF_SECRETS 8 /* or 8 * 4 = 32 octets */ 709 #define SCTP_SECRET_SIZE 32 /* number of octets in a 256 bits */ 710 711 712 /* 713 * SCTP upper layer notifications 714 */ 715 #define SCTP_NOTIFY_ASSOC_UP 1 716 #define SCTP_NOTIFY_ASSOC_DOWN 2 717 #define SCTP_NOTIFY_INTERFACE_DOWN 3 718 #define SCTP_NOTIFY_INTERFACE_UP 4 719 #define SCTP_NOTIFY_SENT_DG_FAIL 5 720 #define SCTP_NOTIFY_UNSENT_DG_FAIL 6 721 #define SCTP_NOTIFY_SPECIAL_SP_FAIL 7 722 #define SCTP_NOTIFY_ASSOC_LOC_ABORTED 8 723 #define SCTP_NOTIFY_ASSOC_REM_ABORTED 9 724 #define SCTP_NOTIFY_ASSOC_RESTART 10 725 #define SCTP_NOTIFY_PEER_SHUTDOWN 11 726 #define SCTP_NOTIFY_ASCONF_ADD_IP 12 727 #define SCTP_NOTIFY_ASCONF_DELETE_IP 13 728 #define SCTP_NOTIFY_ASCONF_SET_PRIMARY 14 729 #define SCTP_NOTIFY_PARTIAL_DELVIERY_INDICATION 15 730 #define SCTP_NOTIFY_INTERFACE_CONFIRMED 16 731 #define SCTP_NOTIFY_STR_RESET_RECV 17 732 #define SCTP_NOTIFY_STR_RESET_SEND 18 733 #define SCTP_NOTIFY_STR_RESET_FAILED_OUT 19 734 #define SCTP_NOTIFY_STR_RESET_FAILED_IN 20 735 #define SCTP_NOTIFY_STR_RESET_DENIED_OUT 21 736 #define SCTP_NOTIFY_STR_RESET_DENIED_IN 22 737 #define SCTP_NOTIFY_AUTH_NEW_KEY 23 738 #define SCTP_NOTIFY_AUTH_FREE_KEY 24 739 #define SCTP_NOTIFY_NO_PEER_AUTH 25 740 #define SCTP_NOTIFY_SENDER_DRY 26 741 #define SCTP_NOTIFY_REMOTE_ERROR 27 742 743 /* This is the value for messages that are NOT completely 744 * copied down where we will start to split the message. 745 * So, with our default, we split only if the piece we 746 * want to take will fill up a full MTU (assuming 747 * a 1500 byte MTU). 748 */ 749 #define SCTP_DEFAULT_SPLIT_POINT_MIN 2904 750 751 /* Maximum length of diagnostic information in error causes */ 752 #define SCTP_DIAG_INFO_LEN 128 753 754 /* ABORT CODES and other tell-tale location 755 * codes are generated by adding the below 756 * to the instance id. 757 */ 758 759 /* File defines */ 760 #define SCTP_FROM_SCTP_INPUT 0x10000000 761 #define SCTP_FROM_SCTP_PCB 0x20000000 762 #define SCTP_FROM_SCTP_INDATA 0x30000000 763 #define SCTP_FROM_SCTP_TIMER 0x40000000 764 #define SCTP_FROM_SCTP_USRREQ 0x50000000 765 #define SCTP_FROM_SCTPUTIL 0x60000000 766 #define SCTP_FROM_SCTP6_USRREQ 0x70000000 767 #define SCTP_FROM_SCTP_ASCONF 0x80000000 768 #define SCTP_FROM_SCTP_OUTPUT 0x90000000 769 #define SCTP_FROM_SCTP_PEELOFF 0xa0000000 770 #define SCTP_FROM_SCTP_PANDA 0xb0000000 771 #define SCTP_FROM_SCTP_SYSCTL 0xc0000000 772 #define SCTP_FROM_SCTP_CC_FUNCTIONS 0xd0000000 773 774 /* Location ID's */ 775 #define SCTP_LOC_1 0x00000001 776 #define SCTP_LOC_2 0x00000002 777 #define SCTP_LOC_3 0x00000003 778 #define SCTP_LOC_4 0x00000004 779 #define SCTP_LOC_5 0x00000005 780 #define SCTP_LOC_6 0x00000006 781 #define SCTP_LOC_7 0x00000007 782 #define SCTP_LOC_8 0x00000008 783 #define SCTP_LOC_9 0x00000009 784 #define SCTP_LOC_10 0x0000000a 785 #define SCTP_LOC_11 0x0000000b 786 #define SCTP_LOC_12 0x0000000c 787 #define SCTP_LOC_13 0x0000000d 788 #define SCTP_LOC_14 0x0000000e 789 #define SCTP_LOC_15 0x0000000f 790 #define SCTP_LOC_16 0x00000010 791 #define SCTP_LOC_17 0x00000011 792 #define SCTP_LOC_18 0x00000012 793 #define SCTP_LOC_19 0x00000013 794 #define SCTP_LOC_20 0x00000014 795 #define SCTP_LOC_21 0x00000015 796 #define SCTP_LOC_22 0x00000016 797 #define SCTP_LOC_23 0x00000017 798 #define SCTP_LOC_24 0x00000018 799 #define SCTP_LOC_25 0x00000019 800 #define SCTP_LOC_26 0x0000001a 801 #define SCTP_LOC_27 0x0000001b 802 #define SCTP_LOC_28 0x0000001c 803 #define SCTP_LOC_29 0x0000001d 804 #define SCTP_LOC_30 0x0000001e 805 #define SCTP_LOC_31 0x0000001f 806 #define SCTP_LOC_32 0x00000020 807 #define SCTP_LOC_33 0x00000021 808 #define SCTP_LOC_34 0x00000022 809 #define SCTP_LOC_35 0x00000023 810 #define SCTP_LOC_36 0x00000024 811 812 /* Free assoc codes */ 813 #define SCTP_NORMAL_PROC 0 814 #define SCTP_PCBFREE_NOFORCE 1 815 #define SCTP_PCBFREE_FORCE 2 816 817 /* From codes for adding addresses */ 818 #define SCTP_ADDR_IS_CONFIRMED 8 819 #define SCTP_ADDR_DYNAMIC_ADDED 6 820 #define SCTP_IN_COOKIE_PROC 100 821 #define SCTP_ALLOC_ASOC 1 822 #define SCTP_LOAD_ADDR_2 2 823 #define SCTP_LOAD_ADDR_3 3 824 #define SCTP_LOAD_ADDR_4 4 825 #define SCTP_LOAD_ADDR_5 5 826 827 #define SCTP_DONOT_SETSCOPE 0 828 #define SCTP_DO_SETSCOPE 1 829 830 831 /* This value determines the default for when 832 * we try to add more on the send queue., if 833 * there is room. This prevents us from cycling 834 * into the copy_resume routine to often if 835 * we have not got enough space to add a decent 836 * enough size message. Note that if we have enough 837 * space to complete the message copy we will always 838 * add to the message, no matter what the size. Its 839 * only when we reach the point that we have some left 840 * to add, there is only room for part of it that we 841 * will use this threshold. Its also a sysctl. 842 */ 843 #define SCTP_DEFAULT_ADD_MORE 1452 844 845 #ifndef SCTP_PCBHASHSIZE 846 /* default number of association hash buckets in each endpoint */ 847 #define SCTP_PCBHASHSIZE 256 848 #endif 849 #ifndef SCTP_TCBHASHSIZE 850 #define SCTP_TCBHASHSIZE 1024 851 #endif 852 853 #ifndef SCTP_CHUNKQUEUE_SCALE 854 #define SCTP_CHUNKQUEUE_SCALE 10 855 #endif 856 857 /* clock variance is 1 ms */ 858 #define SCTP_CLOCK_GRANULARITY 1 859 #define IP_HDR_SIZE 40 /* we use the size of a IP6 header here this 860 * detracts a small amount for ipv4 but it 861 * simplifies the ipv6 addition */ 862 863 /* Argument magic number for sctp_inpcb_free() */ 864 865 /* third argument */ 866 #define SCTP_CALLED_DIRECTLY_NOCMPSET 0 867 #define SCTP_CALLED_AFTER_CMPSET_OFCLOSE 1 868 #define SCTP_CALLED_FROM_INPKILL_TIMER 2 869 /* second argument */ 870 #define SCTP_FREE_SHOULD_USE_ABORT 1 871 #define SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE 0 872 873 #ifndef IPPROTO_SCTP 874 #define IPPROTO_SCTP 132 /* the Official IANA number :-) */ 875 #endif /* !IPPROTO_SCTP */ 876 877 #define SCTP_MAX_DATA_BUNDLING 256 878 879 /* modular comparison */ 880 /* See RFC 1982 for details. */ 881 #define SCTP_UINT16_GT(a, b) (((a < b) && ((uint16_t)(b - a) > (1U<<15))) || \ 882 ((a > b) && ((uint16_t)(a - b) < (1U<<15)))) 883 #define SCTP_UINT16_GE(a, b) (SCTP_UINT16_GT(a, b) || (a == b)) 884 #define SCTP_UINT32_GT(a, b) (((a < b) && ((uint32_t)(b - a) > (1U<<31))) || \ 885 ((a > b) && ((uint32_t)(a - b) < (1U<<31)))) 886 #define SCTP_UINT32_GE(a, b) (SCTP_UINT32_GT(a, b) || (a == b)) 887 888 #define SCTP_SSN_GT(a, b) SCTP_UINT16_GT(a, b) 889 #define SCTP_SSN_GE(a, b) SCTP_UINT16_GE(a, b) 890 #define SCTP_TSN_GT(a, b) SCTP_UINT32_GT(a, b) 891 #define SCTP_TSN_GE(a, b) SCTP_UINT32_GE(a, b) 892 #define SCTP_MID_GT(i, a, b) (((i) == 1) ? SCTP_UINT32_GT(a, b) : SCTP_UINT16_GT((uint16_t)a, (uint16_t)b)) 893 #define SCTP_MID_GE(i, a, b) (((i) == 1) ? SCTP_UINT32_GE(a, b) : SCTP_UINT16_GE((uint16_t)a, (uint16_t)b)) 894 #define SCTP_MID_EQ(i, a, b) (((i) == 1) ? a == b : (uint16_t)a == (uint16_t)b) 895 896 /* Mapping array manipulation routines */ 897 #define SCTP_IS_TSN_PRESENT(arry, gap) ((arry[(gap >> 3)] >> (gap & 0x07)) & 0x01) 898 #define SCTP_SET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] |= (0x01 << ((gap & 0x07)))) 899 #define SCTP_UNSET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] &= ((~(0x01 << ((gap & 0x07)))) & 0xff)) 900 #define SCTP_CALC_TSN_TO_GAP(gap, tsn, mapping_tsn) do { \ 901 if (tsn >= mapping_tsn) { \ 902 gap = tsn - mapping_tsn; \ 903 } else { \ 904 gap = (MAX_TSN - mapping_tsn) + tsn + 1; \ 905 } \ 906 } while (0) 907 908 909 #define SCTP_RETRAN_DONE -1 910 #define SCTP_RETRAN_EXIT -2 911 912 /* 913 * This value defines the number of vtag block time wait entry's per list 914 * element. Each entry will take 2 4 byte ints (and of course the overhead 915 * of the next pointer as well). Using 15 as an example will yield * ((8 * 916 * 15) + 8) or 128 bytes of overhead for each timewait block that gets 917 * initialized. Increasing it to 31 would yield 256 bytes per block. 918 */ 919 #define SCTP_NUMBER_IN_VTAG_BLOCK 15 920 /* 921 * If we use the STACK option, we have an array of this size head pointers. 922 * This array is mod'd the with the size to find which bucket and then all 923 * entries must be searched to see if the tag is in timed wait. If so we 924 * reject it. 925 */ 926 #define SCTP_STACK_VTAG_HASH_SIZE 32 927 928 /* 929 * Number of seconds of time wait for a vtag. 930 */ 931 #define SCTP_TIME_WAIT 60 932 933 /* How many micro seconds is the cutoff from 934 * local lan type rtt's 935 */ 936 /* 937 * We allow 900us for the rtt. 938 */ 939 #define SCTP_LOCAL_LAN_RTT 900 940 #define SCTP_LAN_UNKNOWN 0 941 #define SCTP_LAN_LOCAL 1 942 #define SCTP_LAN_INTERNET 2 943 944 #define SCTP_SEND_BUFFER_SPLITTING 0x00000001 945 #define SCTP_RECV_BUFFER_SPLITTING 0x00000002 946 947 /* The system retains a cache of free chunks such to 948 * cut down on calls the memory allocation system. There 949 * is a per association limit of free items and a overall 950 * system limit. If either one gets hit then the resource 951 * stops being cached. 952 */ 953 954 #define SCTP_DEF_ASOC_RESC_LIMIT 10 955 #define SCTP_DEF_SYSTEM_RESC_LIMIT 1000 956 957 /*- 958 * defines for socket lock states. 959 * Used by __APPLE__ and SCTP_SO_LOCK_TESTING 960 */ 961 #define SCTP_SO_LOCKED 1 962 #define SCTP_SO_NOT_LOCKED 0 963 964 965 /*- 966 * For address locks, do we hold the lock? 967 */ 968 #define SCTP_ADDR_LOCKED 1 969 #define SCTP_ADDR_NOT_LOCKED 0 970 971 #define IN4_ISPRIVATE_ADDRESS(a) \ 972 ((((uint8_t *)&(a)->s_addr)[0] == 10) || \ 973 ((((uint8_t *)&(a)->s_addr)[0] == 172) && \ 974 (((uint8_t *)&(a)->s_addr)[1] >= 16) && \ 975 (((uint8_t *)&(a)->s_addr)[1] <= 32)) || \ 976 ((((uint8_t *)&(a)->s_addr)[0] == 192) && \ 977 (((uint8_t *)&(a)->s_addr)[1] == 168))) 978 979 #define IN4_ISLOOPBACK_ADDRESS(a) \ 980 (((uint8_t *)&(a)->s_addr)[0] == 127) 981 982 #define IN4_ISLINKLOCAL_ADDRESS(a) \ 983 ((((uint8_t *)&(a)->s_addr)[0] == 169) && \ 984 (((uint8_t *)&(a)->s_addr)[1] == 254)) 985 986 /* Maximum size of optval for IPPROTO_SCTP level socket options. */ 987 #define SCTP_SOCKET_OPTION_LIMIT (64 * 1024) 988 989 990 #if defined(_KERNEL) 991 #define SCTP_GETTIME_TIMEVAL(x) (getmicrouptime(x)) 992 #define SCTP_GETPTIME_TIMEVAL(x) (microuptime(x)) 993 #endif 994 995 #if defined(_KERNEL) || defined(__Userspace__) 996 #define sctp_sowwakeup(inp, so) \ 997 do { \ 998 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 999 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \ 1000 } else { \ 1001 sowwakeup(so); \ 1002 } \ 1003 } while (0) 1004 1005 #define sctp_sowwakeup_locked(inp, so) \ 1006 do { \ 1007 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1008 SOCKBUF_UNLOCK(&((so)->so_snd)); \ 1009 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \ 1010 } else { \ 1011 sowwakeup_locked(so); \ 1012 } \ 1013 } while (0) 1014 1015 #define sctp_sorwakeup(inp, so) \ 1016 do { \ 1017 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1018 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \ 1019 } else { \ 1020 sorwakeup(so); \ 1021 } \ 1022 } while (0) 1023 1024 #define sctp_sorwakeup_locked(inp, so) \ 1025 do { \ 1026 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1027 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \ 1028 SOCKBUF_UNLOCK(&((so)->so_rcv)); \ 1029 } else { \ 1030 sorwakeup_locked(so); \ 1031 } \ 1032 } while (0) 1033 1034 #endif /* _KERNEL || __Userspace__ */ 1035 #endif 1036