1/*- 2 * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved. 3 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved. 4 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * a) Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * 12 * b) Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in 14 * the documentation and/or other materials provided with the distribution. 15 * 16 * c) Neither the name of Cisco Systems, Inc. nor the names of its 17 * contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 22 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 30 * THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33#ifdef __FreeBSD__ 34#include <sys/cdefs.h> 35__FBSDID("$FreeBSD: head/sys/netinet/sctp_constants.h 263921 2014-03-29 20:21:36Z tuexen $"); 36#endif 37 38#ifndef _NETINET_SCTP_CONSTANTS_H_ 39#define _NETINET_SCTP_CONSTANTS_H_ 40 41#if defined(__Userspace_os_Windows) 42extern void getwintimeofday(struct timeval *tv); 43#endif 44 45/* IANA assigned port number for SCTP over UDP encapsulation */ 46#define SCTP_OVER_UDP_TUNNELING_PORT 9899 47 48/* Number of packets to get before sack sent by default */ 49#define SCTP_DEFAULT_SACK_FREQ 2 50 51/* Address limit - This variable is calculated 52 * based on an 65535 byte max ip packet. We take out 100 bytes 53 * for the cookie, 40 bytes for a v6 header and 32 54 * bytes for the init structure. A second init structure 55 * for the init-ack and then finally a third one for the 56 * imbedded init. This yeilds 100+40+(3 * 32) = 236 bytes. 57 * This leaves 65299 bytes for addresses. We throw out the 299 bytes. 58 * Now whatever we send in the INIT() we need to allow to get back in the 59 * INIT-ACK plus all the values from INIT and INIT-ACK 60 * listed in the cookie. Plus we need some overhead for 61 * maybe copied parameters in the COOKIE. If we 62 * allow 1080 addresses, and each side has 1080 V6 addresses 63 * that will be 21600 bytes. In the INIT-ACK we will 64 * see the INIT-ACK 21600 + 43200 in the cookie. This leaves 65 * about 500 bytes slack for misc things in the cookie. 66 */ 67#define SCTP_ADDRESS_LIMIT 1080 68 69/* We need at least 2k of space for us, inits 70 * larger than that lets abort. 71 */ 72#define SCTP_LARGEST_INIT_ACCEPTED (65535 - 2048) 73 74/* Number of addresses where we just skip the counting */ 75#define SCTP_COUNT_LIMIT 40 76 77#define SCTP_ZERO_COPY_TICK_DELAY (((100 * hz) + 999) / 1000) 78#define SCTP_ZERO_COPY_SENDQ_TICK_DELAY (((100 * hz) + 999) / 1000) 79 80/* Number of ticks to delay before running 81 * iterator on an address change. 82 */ 83#define SCTP_ADDRESS_TICK_DELAY 2 84 85#define SCTP_VERSION_STRING "KAME-BSD 1.1" 86/* #define SCTP_AUDITING_ENABLED 1 used for debug/auditing */ 87#define SCTP_AUDIT_SIZE 256 88 89 90#define SCTP_KTRHEAD_NAME "sctp_iterator" 91#define SCTP_KTHREAD_PAGES 0 92 93#define SCTP_MCORE_NAME "sctp_core_worker" 94 95 96/* If you support Multi-VRF how big to 97 * make the initial array of VRF's to. 98 */ 99#define SCTP_DEFAULT_VRF_SIZE 4 100 101/* constants for rto calc */ 102#define sctp_align_safe_nocopy 0 103#define sctp_align_unsafe_makecopy 1 104 105/* JRS - Values defined for the HTCP algorithm */ 106#define ALPHA_BASE (1<<7) /* 1.0 with shift << 7 */ 107#define BETA_MIN (1<<6) /* 0.5 with shift << 7 */ 108#define BETA_MAX 102 /* 0.8 with shift << 7 */ 109 110/* Places that CWND log can happen from */ 111#define SCTP_CWND_LOG_FROM_FR 1 112#define SCTP_CWND_LOG_FROM_RTX 2 113#define SCTP_CWND_LOG_FROM_BRST 3 114#define SCTP_CWND_LOG_FROM_SS 4 115#define SCTP_CWND_LOG_FROM_CA 5 116#define SCTP_CWND_LOG_FROM_SAT 6 117#define SCTP_BLOCK_LOG_INTO_BLK 7 118#define SCTP_BLOCK_LOG_OUTOF_BLK 8 119#define SCTP_BLOCK_LOG_CHECK 9 120#define SCTP_STR_LOG_FROM_INTO_STRD 10 121#define SCTP_STR_LOG_FROM_IMMED_DEL 11 122#define SCTP_STR_LOG_FROM_INSERT_HD 12 123#define SCTP_STR_LOG_FROM_INSERT_MD 13 124#define SCTP_STR_LOG_FROM_INSERT_TL 14 125#define SCTP_STR_LOG_FROM_MARK_TSN 15 126#define SCTP_STR_LOG_FROM_EXPRS_DEL 16 127#define SCTP_FR_LOG_BIGGEST_TSNS 17 128#define SCTP_FR_LOG_STRIKE_TEST 18 129#define SCTP_FR_LOG_STRIKE_CHUNK 19 130#define SCTP_FR_T3_TIMEOUT 20 131#define SCTP_MAP_PREPARE_SLIDE 21 132#define SCTP_MAP_SLIDE_FROM 22 133#define SCTP_MAP_SLIDE_RESULT 23 134#define SCTP_MAP_SLIDE_CLEARED 24 135#define SCTP_MAP_SLIDE_NONE 25 136#define SCTP_FR_T3_MARK_TIME 26 137#define SCTP_FR_T3_MARKED 27 138#define SCTP_FR_T3_STOPPED 28 139#define SCTP_FR_MARKED 30 140#define SCTP_CWND_LOG_NOADV_SS 31 141#define SCTP_CWND_LOG_NOADV_CA 32 142#define SCTP_MAX_BURST_APPLIED 33 143#define SCTP_MAX_IFP_APPLIED 34 144#define SCTP_MAX_BURST_ERROR_STOP 35 145#define SCTP_INCREASE_PEER_RWND 36 146#define SCTP_DECREASE_PEER_RWND 37 147#define SCTP_SET_PEER_RWND_VIA_SACK 38 148#define SCTP_LOG_MBCNT_INCREASE 39 149#define SCTP_LOG_MBCNT_DECREASE 40 150#define SCTP_LOG_MBCNT_CHKSET 41 151#define SCTP_LOG_NEW_SACK 42 152#define SCTP_LOG_TSN_ACKED 43 153#define SCTP_LOG_TSN_REVOKED 44 154#define SCTP_LOG_LOCK_TCB 45 155#define SCTP_LOG_LOCK_INP 46 156#define SCTP_LOG_LOCK_SOCK 47 157#define SCTP_LOG_LOCK_SOCKBUF_R 48 158#define SCTP_LOG_LOCK_SOCKBUF_S 49 159#define SCTP_LOG_LOCK_CREATE 50 160#define SCTP_LOG_INITIAL_RTT 51 161#define SCTP_LOG_RTTVAR 52 162#define SCTP_LOG_SBALLOC 53 163#define SCTP_LOG_SBFREE 54 164#define SCTP_LOG_SBRESULT 55 165#define SCTP_FR_DUPED 56 166#define SCTP_FR_MARKED_EARLY 57 167#define SCTP_FR_CWND_REPORT 58 168#define SCTP_FR_CWND_REPORT_START 59 169#define SCTP_FR_CWND_REPORT_STOP 60 170#define SCTP_CWND_LOG_FROM_SEND 61 171#define SCTP_CWND_INITIALIZATION 62 172#define SCTP_CWND_LOG_FROM_T3 63 173#define SCTP_CWND_LOG_FROM_SACK 64 174#define SCTP_CWND_LOG_NO_CUMACK 65 175#define SCTP_CWND_LOG_FROM_RESEND 66 176#define SCTP_FR_LOG_CHECK_STRIKE 67 177#define SCTP_SEND_NOW_COMPLETES 68 178#define SCTP_CWND_LOG_FILL_OUTQ_CALLED 69 179#define SCTP_CWND_LOG_FILL_OUTQ_FILLS 70 180#define SCTP_LOG_FREE_SENT 71 181#define SCTP_NAGLE_APPLIED 72 182#define SCTP_NAGLE_SKIPPED 73 183#define SCTP_WAKESND_FROM_SACK 74 184#define SCTP_WAKESND_FROM_FWDTSN 75 185#define SCTP_NOWAKE_FROM_SACK 76 186#define SCTP_CWNDLOG_PRESEND 77 187#define SCTP_CWNDLOG_ENDSEND 78 188#define SCTP_AT_END_OF_SACK 79 189#define SCTP_REASON_FOR_SC 80 190#define SCTP_BLOCK_LOG_INTO_BLKA 81 191#define SCTP_ENTER_USER_RECV 82 192#define SCTP_USER_RECV_SACKS 83 193#define SCTP_SORECV_BLOCKSA 84 194#define SCTP_SORECV_BLOCKSB 85 195#define SCTP_SORECV_DONE 86 196#define SCTP_SACK_RWND_UPDATE 87 197#define SCTP_SORECV_ENTER 88 198#define SCTP_SORECV_ENTERPL 89 199#define SCTP_MBUF_INPUT 90 200#define SCTP_MBUF_IALLOC 91 201#define SCTP_MBUF_IFREE 92 202#define SCTP_MBUF_ICOPY 93 203#define SCTP_MBUF_SPLIT 94 204#define SCTP_SORCV_FREECTL 95 205#define SCTP_SORCV_DOESCPY 96 206#define SCTP_SORCV_DOESLCK 97 207#define SCTP_SORCV_DOESADJ 98 208#define SCTP_SORCV_BOTWHILE 99 209#define SCTP_SORCV_PASSBF 100 210#define SCTP_SORCV_ADJD 101 211#define SCTP_UNKNOWN_MAX 102 212#define SCTP_RANDY_STUFF 103 213#define SCTP_RANDY_STUFF1 104 214#define SCTP_STRMOUT_LOG_ASSIGN 105 215#define SCTP_STRMOUT_LOG_SEND 106 216#define SCTP_FLIGHT_LOG_DOWN_CA 107 217#define SCTP_FLIGHT_LOG_UP 108 218#define SCTP_FLIGHT_LOG_DOWN_GAP 109 219#define SCTP_FLIGHT_LOG_DOWN_RSND 110 220#define SCTP_FLIGHT_LOG_UP_RSND 111 221#define SCTP_FLIGHT_LOG_DOWN_RSND_TO 112 222#define SCTP_FLIGHT_LOG_DOWN_WP 113 223#define SCTP_FLIGHT_LOG_UP_REVOKE 114 224#define SCTP_FLIGHT_LOG_DOWN_PDRP 115 225#define SCTP_FLIGHT_LOG_DOWN_PMTU 116 226#define SCTP_SACK_LOG_NORMAL 117 227#define SCTP_SACK_LOG_EXPRESS 118 228#define SCTP_MAP_TSN_ENTERS 119 229#define SCTP_THRESHOLD_CLEAR 120 230#define SCTP_THRESHOLD_INCR 121 231#define SCTP_FLIGHT_LOG_DWN_WP_FWD 122 232#define SCTP_FWD_TSN_CHECK 123 233#define SCTP_LOG_MAX_TYPES 124 234/* 235 * To turn on various logging, you must first enable 'options KTR' and 236 * you might want to bump the entires 'options KTR_ENTRIES=80000'. 237 * To get something to log you define one of the logging defines. 238 * (see LINT). 239 * 240 * This gets the compile in place, but you still need to turn the 241 * logging flag on too in the sysctl (see in sctp.h). 242 */ 243 244#define SCTP_LOG_EVENT_UNKNOWN 0 245#define SCTP_LOG_EVENT_CWND 1 246#define SCTP_LOG_EVENT_BLOCK 2 247#define SCTP_LOG_EVENT_STRM 3 248#define SCTP_LOG_EVENT_FR 4 249#define SCTP_LOG_EVENT_MAP 5 250#define SCTP_LOG_EVENT_MAXBURST 6 251#define SCTP_LOG_EVENT_RWND 7 252#define SCTP_LOG_EVENT_MBCNT 8 253#define SCTP_LOG_EVENT_SACK 9 254#define SCTP_LOG_LOCK_EVENT 10 255#define SCTP_LOG_EVENT_RTT 11 256#define SCTP_LOG_EVENT_SB 12 257#define SCTP_LOG_EVENT_NAGLE 13 258#define SCTP_LOG_EVENT_WAKE 14 259#define SCTP_LOG_MISC_EVENT 15 260#define SCTP_LOG_EVENT_CLOSE 16 261#define SCTP_LOG_EVENT_MBUF 17 262#define SCTP_LOG_CHUNK_PROC 18 263#define SCTP_LOG_ERROR_RET 19 264 265#define SCTP_LOG_MAX_EVENT 20 266 267#define SCTP_LOCK_UNKNOWN 2 268 269 270/* number of associations by default for zone allocation */ 271#define SCTP_MAX_NUM_OF_ASOC 40000 272/* how many addresses per assoc remote and local */ 273#define SCTP_SCALE_FOR_ADDR 2 274 275/* default AUTO_ASCONF mode enable(1)/disable(0) value (sysctl) */ 276#if defined(__APPLE__) 277#if !defined(SCTP_APPLE_AUTO_ASCONF) 278#define SCTP_DEFAULT_AUTO_ASCONF 0 279#else 280#define SCTP_DEFAULT_AUTO_ASCONF 1 281#endif 282#else 283#define SCTP_DEFAULT_AUTO_ASCONF 1 284#endif 285 286/* default MULTIPLE_ASCONF mode enable(1)/disable(0) value (sysctl) */ 287#define SCTP_DEFAULT_MULTIPLE_ASCONFS 0 288 289/* default MOBILITY_BASE mode enable(1)/disable(0) value (sysctl) */ 290#if defined(__APPLE__) 291#if !defined(SCTP_APPLE_MOBILITY_BASE) 292#define SCTP_DEFAULT_MOBILITY_BASE 0 293#else 294#define SCTP_DEFAULT_MOBILITY_BASE 1 295#endif 296#else 297#define SCTP_DEFAULT_MOBILITY_BASE 0 298#endif 299 300/* default MOBILITY_FASTHANDOFF mode enable(1)/disable(0) value (sysctl) */ 301#if defined(__APPLE__) 302#if !defined(SCTP_APPLE_MOBILITY_FASTHANDOFF) 303#define SCTP_DEFAULT_MOBILITY_FASTHANDOFF 0 304#else 305#define SCTP_DEFAULT_MOBILITY_FASTHANDOFF 1 306#endif 307#else 308#define SCTP_DEFAULT_MOBILITY_FASTHANDOFF 0 309#endif 310 311/* 312 * Theshold for rwnd updates, we have to read (sb_hiwat >> 313 * SCTP_RWND_HIWAT_SHIFT) before we will look to see if we need to send a 314 * window update sack. When we look, we compare the last rwnd we sent vs the 315 * current rwnd. It too must be greater than this value. Using 3 divdes the 316 * hiwat by 8, so for 200k rwnd we need to read 24k. For a 64k rwnd we need 317 * to read 8k. This seems about right.. I hope :-D.. we do set a 318 * min of a MTU on it so if the rwnd is real small we will insist 319 * on a full MTU of 1500 bytes. 320 */ 321#define SCTP_RWND_HIWAT_SHIFT 3 322 323/* How much of the rwnd must the 324 * message be taking up to start partial delivery. 325 * We calculate this by shifing the hi_water (recv_win) 326 * left the following .. set to 1, when a message holds 327 * 1/2 the rwnd. If we set it to 2 when a message holds 328 * 1/4 the rwnd...etc.. 329 */ 330 331#define SCTP_PARTIAL_DELIVERY_SHIFT 1 332 333/* 334 * default HMAC for cookies, etc... use one of the AUTH HMAC id's 335 * SCTP_HMAC is the HMAC_ID to use 336 * SCTP_SIGNATURE_SIZE is the digest length 337 */ 338#define SCTP_HMAC SCTP_AUTH_HMAC_ID_SHA1 339#define SCTP_SIGNATURE_SIZE SCTP_AUTH_DIGEST_LEN_SHA1 340#define SCTP_SIGNATURE_ALOC_SIZE SCTP_SIGNATURE_SIZE 341 342/* 343 * the SCTP protocol signature this includes the version number encoded in 344 * the last 4 bits of the signature. 345 */ 346#define PROTO_SIGNATURE_A 0x30000000 347#define SCTP_VERSION_NUMBER 0x3 348 349#define MAX_TSN 0xffffffff 350 351/* how many executions every N tick's */ 352#define SCTP_ITERATOR_MAX_AT_ONCE 20 353 354/* number of clock ticks between iterator executions */ 355#define SCTP_ITERATOR_TICKS 1 356 357/* 358 * option: If you comment out the following you will receive the old behavior 359 * of obeying cwnd for the fast retransmit algorithm. With this defined a FR 360 * happens right away with-out waiting for the flightsize to drop below the 361 * cwnd value (which is reduced by the FR to 1/2 the inflight packets). 362 */ 363#define SCTP_IGNORE_CWND_ON_FR 1 364 365/* 366 * Adds implementors guide behavior to only use newest highest update in SACK 367 * gap ack's to figure out if you need to stroke a chunk for FR. 368 */ 369#define SCTP_NO_FR_UNLESS_SEGMENT_SMALLER 1 370 371/* default max I can burst out after a fast retransmit, 0 disables it */ 372#define SCTP_DEF_MAX_BURST 4 373#define SCTP_DEF_HBMAX_BURST 4 374#define SCTP_DEF_FRMAX_BURST 4 375 376/* RTO calculation flag to say if it 377 * is safe to determine local lan or not. 378 */ 379#define SCTP_RTT_FROM_NON_DATA 0 380#define SCTP_RTT_FROM_DATA 1 381 382 383/* IP hdr (20/40) + 12+2+2 (enet) + sctp common 12 */ 384#define SCTP_FIRST_MBUF_RESV 68 385/* Packet transmit states in the sent field */ 386#define SCTP_DATAGRAM_UNSENT 0 387#define SCTP_DATAGRAM_SENT 1 388#define SCTP_DATAGRAM_RESEND1 2 /* not used (in code, but may 389 * hit this value) */ 390#define SCTP_DATAGRAM_RESEND2 3 /* not used (in code, but may 391 * hit this value) */ 392#define SCTP_DATAGRAM_RESEND 4 393#define SCTP_DATAGRAM_ACKED 10010 394#define SCTP_DATAGRAM_MARKED 20010 395#define SCTP_FORWARD_TSN_SKIP 30010 396#define SCTP_DATAGRAM_NR_ACKED 40010 397 398/* chunk output send from locations */ 399#define SCTP_OUTPUT_FROM_USR_SEND 0 400#define SCTP_OUTPUT_FROM_T3 1 401#define SCTP_OUTPUT_FROM_INPUT_ERROR 2 402#define SCTP_OUTPUT_FROM_CONTROL_PROC 3 403#define SCTP_OUTPUT_FROM_SACK_TMR 4 404#define SCTP_OUTPUT_FROM_SHUT_TMR 5 405#define SCTP_OUTPUT_FROM_HB_TMR 6 406#define SCTP_OUTPUT_FROM_SHUT_ACK_TMR 7 407#define SCTP_OUTPUT_FROM_ASCONF_TMR 8 408#define SCTP_OUTPUT_FROM_STRRST_TMR 9 409#define SCTP_OUTPUT_FROM_AUTOCLOSE_TMR 10 410#define SCTP_OUTPUT_FROM_EARLY_FR_TMR 11 411#define SCTP_OUTPUT_FROM_STRRST_REQ 12 412#define SCTP_OUTPUT_FROM_USR_RCVD 13 413#define SCTP_OUTPUT_FROM_COOKIE_ACK 14 414#define SCTP_OUTPUT_FROM_DRAIN 15 415#define SCTP_OUTPUT_FROM_CLOSING 16 416#define SCTP_OUTPUT_FROM_SOCKOPT 17 417 418/* SCTP chunk types are moved sctp.h for application (NAT, FW) use */ 419 420/* align to 32-bit sizes */ 421#define SCTP_SIZE32(x) ((((x) + 3) >> 2) << 2) 422 423#define IS_SCTP_CONTROL(a) ((a)->chunk_type != SCTP_DATA) 424#define IS_SCTP_DATA(a) ((a)->chunk_type == SCTP_DATA) 425 426 427/* SCTP parameter types */ 428/*************0x0000 series*************/ 429#define SCTP_HEARTBEAT_INFO 0x0001 430#if defined(__Userspace__) 431#define SCTP_CONN_ADDRESS 0x0004 432#endif 433#define SCTP_IPV4_ADDRESS 0x0005 434#define SCTP_IPV6_ADDRESS 0x0006 435#define SCTP_STATE_COOKIE 0x0007 436#define SCTP_UNRECOG_PARAM 0x0008 437#define SCTP_COOKIE_PRESERVE 0x0009 438#define SCTP_HOSTNAME_ADDRESS 0x000b 439#define SCTP_SUPPORTED_ADDRTYPE 0x000c 440 441/* draft-ietf-stewart-tsvwg-strreset-xxx */ 442#define SCTP_STR_RESET_OUT_REQUEST 0x000d 443#define SCTP_STR_RESET_IN_REQUEST 0x000e 444#define SCTP_STR_RESET_TSN_REQUEST 0x000f 445#define SCTP_STR_RESET_RESPONSE 0x0010 446#define SCTP_STR_RESET_ADD_OUT_STREAMS 0x0011 447#define SCTP_STR_RESET_ADD_IN_STREAMS 0x0012 448 449#define SCTP_MAX_RESET_PARAMS 2 450#define SCTP_STREAM_RESET_TSN_DELTA 0x1000 451 452/*************0x4000 series*************/ 453 454/*************0x8000 series*************/ 455#define SCTP_ECN_CAPABLE 0x8000 456 457/* draft-ietf-tsvwg-auth-xxx */ 458#define SCTP_RANDOM 0x8002 459#define SCTP_CHUNK_LIST 0x8003 460#define SCTP_HMAC_LIST 0x8004 461/* 462 * draft-ietf-tsvwg-addip-sctp-xx param=0x8008 len=0xNNNN Byte | Byte | Byte 463 * | Byte Byte | Byte ... 464 * 465 * Where each byte is a chunk type extension supported. For example, to support 466 * all chunks one would have (in hex): 467 * 468 * 80 01 00 09 C0 C1 80 81 82 00 00 00 469 * 470 * Has the parameter. C0 = PR-SCTP (RFC3758) C1, 80 = ASCONF (addip draft) 81 471 * = Packet Drop 82 = Stream Reset 83 = Authentication 472 */ 473#define SCTP_SUPPORTED_CHUNK_EXT 0x8008 474 475/*************0xC000 series*************/ 476#define SCTP_PRSCTP_SUPPORTED 0xc000 477/* draft-ietf-tsvwg-addip-sctp */ 478#define SCTP_ADD_IP_ADDRESS 0xc001 479#define SCTP_DEL_IP_ADDRESS 0xc002 480#define SCTP_ERROR_CAUSE_IND 0xc003 481#define SCTP_SET_PRIM_ADDR 0xc004 482#define SCTP_SUCCESS_REPORT 0xc005 483#define SCTP_ULP_ADAPTATION 0xc006 484/* behave-nat-draft */ 485#define SCTP_HAS_NAT_SUPPORT 0xc007 486#define SCTP_NAT_VTAGS 0xc008 487 488/* bits for TOS field */ 489#define SCTP_ECT0_BIT 0x02 490#define SCTP_ECT1_BIT 0x01 491#define SCTP_CE_BITS 0x03 492 493/* below turns off above */ 494#define SCTP_FLEXIBLE_ADDRESS 0x20 495#define SCTP_NO_HEARTBEAT 0x40 496 497/* mask to get sticky */ 498#define SCTP_STICKY_OPTIONS_MASK 0x0c 499 500 501/* 502 * SCTP states for internal state machine XXX (should match "user" values) 503 */ 504#define SCTP_STATE_EMPTY 0x0000 505#define SCTP_STATE_INUSE 0x0001 506#define SCTP_STATE_COOKIE_WAIT 0x0002 507#define SCTP_STATE_COOKIE_ECHOED 0x0004 508#define SCTP_STATE_OPEN 0x0008 509#define SCTP_STATE_SHUTDOWN_SENT 0x0010 510#define SCTP_STATE_SHUTDOWN_RECEIVED 0x0020 511#define SCTP_STATE_SHUTDOWN_ACK_SENT 0x0040 512#define SCTP_STATE_SHUTDOWN_PENDING 0x0080 513#define SCTP_STATE_CLOSED_SOCKET 0x0100 514#define SCTP_STATE_ABOUT_TO_BE_FREED 0x0200 515#define SCTP_STATE_PARTIAL_MSG_LEFT 0x0400 516#define SCTP_STATE_WAS_ABORTED 0x0800 517#define SCTP_STATE_IN_ACCEPT_QUEUE 0x1000 518#define SCTP_STATE_MASK 0x007f 519 520#define SCTP_GET_STATE(asoc) ((asoc)->state & SCTP_STATE_MASK) 521#define SCTP_SET_STATE(asoc, newstate) ((asoc)->state = ((asoc)->state & ~SCTP_STATE_MASK) | newstate) 522#define SCTP_CLEAR_SUBSTATE(asoc, substate) ((asoc)->state &= ~substate) 523#define SCTP_ADD_SUBSTATE(asoc, substate) ((asoc)->state |= substate) 524 525/* SCTP reachability state for each address */ 526#define SCTP_ADDR_REACHABLE 0x001 527#define SCTP_ADDR_NO_PMTUD 0x002 528#define SCTP_ADDR_NOHB 0x004 529#define SCTP_ADDR_BEING_DELETED 0x008 530#define SCTP_ADDR_NOT_IN_ASSOC 0x010 531#define SCTP_ADDR_OUT_OF_SCOPE 0x080 532#define SCTP_ADDR_UNCONFIRMED 0x200 533#define SCTP_ADDR_REQ_PRIMARY 0x400 534/* JRS 5/13/07 - Added potentially failed state for CMT PF */ 535#define SCTP_ADDR_PF 0x800 536 537/* bound address types (e.g. valid address types to allow) */ 538#define SCTP_BOUND_V6 0x01 539#define SCTP_BOUND_V4 0x02 540 541/* 542 * what is the default number of mbufs in a chain I allow before switching to 543 * a cluster 544 */ 545#define SCTP_DEFAULT_MBUFS_IN_CHAIN 5 546 547/* How long a cookie lives in milli-seconds */ 548#define SCTP_DEFAULT_COOKIE_LIFE 60000 549 550/* Maximum the mapping array will grow to (TSN mapping array) */ 551#define SCTP_MAPPING_ARRAY 512 552 553/* size of the inital malloc on the mapping array */ 554#define SCTP_INITIAL_MAPPING_ARRAY 16 555/* how much we grow the mapping array each call */ 556#define SCTP_MAPPING_ARRAY_INCR 32 557 558/* 559 * Here we define the timer types used by the implementation as arguments in 560 * the set/get timer type calls. 561 */ 562#define SCTP_TIMER_INIT 0 563#define SCTP_TIMER_RECV 1 564#define SCTP_TIMER_SEND 2 565#define SCTP_TIMER_HEARTBEAT 3 566#define SCTP_TIMER_PMTU 4 567#define SCTP_TIMER_MAXSHUTDOWN 5 568#define SCTP_TIMER_SIGNATURE 6 569/* 570 * number of timer types in the base SCTP structure used in the set/get and 571 * has the base default. 572 */ 573#define SCTP_NUM_TMRS 7 574 575/* timer types */ 576#define SCTP_TIMER_TYPE_NONE 0 577#define SCTP_TIMER_TYPE_SEND 1 578#define SCTP_TIMER_TYPE_INIT 2 579#define SCTP_TIMER_TYPE_RECV 3 580#define SCTP_TIMER_TYPE_SHUTDOWN 4 581#define SCTP_TIMER_TYPE_HEARTBEAT 5 582#define SCTP_TIMER_TYPE_COOKIE 6 583#define SCTP_TIMER_TYPE_NEWCOOKIE 7 584#define SCTP_TIMER_TYPE_PATHMTURAISE 8 585#define SCTP_TIMER_TYPE_SHUTDOWNACK 9 586#define SCTP_TIMER_TYPE_ASCONF 10 587#define SCTP_TIMER_TYPE_SHUTDOWNGUARD 11 588#define SCTP_TIMER_TYPE_AUTOCLOSE 12 589#define SCTP_TIMER_TYPE_EVENTWAKE 13 590#define SCTP_TIMER_TYPE_STRRESET 14 591#define SCTP_TIMER_TYPE_INPKILL 15 592#define SCTP_TIMER_TYPE_ASOCKILL 16 593#define SCTP_TIMER_TYPE_ADDR_WQ 17 594#define SCTP_TIMER_TYPE_ZERO_COPY 18 595#define SCTP_TIMER_TYPE_ZCOPY_SENDQ 19 596#define SCTP_TIMER_TYPE_PRIM_DELETED 20 597/* add new timers here - and increment LAST */ 598#define SCTP_TIMER_TYPE_LAST 21 599 600#define SCTP_IS_TIMER_TYPE_VALID(t) (((t) > SCTP_TIMER_TYPE_NONE) && \ 601 ((t) < SCTP_TIMER_TYPE_LAST)) 602 603 604#if defined(__APPLE__) 605/* Number of ticks to run the main timer at in msec */ 606#define SCTP_MAIN_TIMER_DEFAULT 10 607#endif 608 609/* max number of TSN's dup'd that I will hold */ 610#define SCTP_MAX_DUP_TSNS 20 611 612/* 613 * Here we define the types used when setting the retry amounts. 614 */ 615/* How many drop re-attempts we make on INIT/COOKIE-ECHO */ 616#define SCTP_RETRY_DROPPED_THRESH 4 617 618/* 619 * Maxmium number of chunks a single association can have on it. Note that 620 * this is a squishy number since the count can run over this if the user 621 * sends a large message down .. the fragmented chunks don't count until 622 * AFTER the message is on queue.. it would be the next send that blocks 623 * things. This number will get tuned up at boot in the sctp_init and use the 624 * number of clusters as a base. This way high bandwidth environments will 625 * not get impacted by the lower bandwidth sending a bunch of 1 byte chunks 626 */ 627#ifdef __Panda__ 628#define SCTP_ASOC_MAX_CHUNKS_ON_QUEUE 10240 629#else 630#define SCTP_ASOC_MAX_CHUNKS_ON_QUEUE 512 631#endif 632 633 634/* The conversion from time to ticks and vice versa is done by rounding 635 * upwards. This way we can test in the code the time to be positive and 636 * know that this corresponds to a positive number of ticks. 637 */ 638#define MSEC_TO_TICKS(x) ((hz == 1000) ? x : ((((x) * hz) + 999) / 1000)) 639#define TICKS_TO_MSEC(x) ((hz == 1000) ? x : ((((x) * 1000) + (hz - 1)) / hz)) 640 641#define SEC_TO_TICKS(x) ((x) * hz) 642#define TICKS_TO_SEC(x) (((x) + (hz - 1)) / hz) 643 644/* 645 * Basically the minimum amount of time before I do a early FR. Making this 646 * value to low will cause duplicate retransmissions. 647 */ 648#define SCTP_MINFR_MSEC_TIMER 250 649/* The floor this value is allowed to fall to when starting a timer. */ 650#define SCTP_MINFR_MSEC_FLOOR 20 651 652/* init timer def = 1 sec */ 653#define SCTP_INIT_SEC 1 654 655/* send timer def = 1 seconds */ 656#define SCTP_SEND_SEC 1 657 658/* recv timer def = 200ms */ 659#define SCTP_RECV_MSEC 200 660 661/* 30 seconds + RTO (in ms) */ 662#define SCTP_HB_DEFAULT_MSEC 30000 663 664/* Max time I will wait for Shutdown to complete */ 665#define SCTP_DEF_MAX_SHUTDOWN_SEC 180 666 667 668/* 669 * This is how long a secret lives, NOT how long a cookie lives how many 670 * ticks the current secret will live. 671 */ 672#define SCTP_DEFAULT_SECRET_LIFE_SEC 3600 673 674#define SCTP_RTO_UPPER_BOUND (60000) /* 60 sec in ms */ 675#define SCTP_RTO_LOWER_BOUND (1000) /* 1 sec is ms */ 676#define SCTP_RTO_INITIAL (3000) /* 3 sec in ms */ 677 678 679#define SCTP_INP_KILL_TIMEOUT 20 /* number of ms to retry kill of inpcb */ 680#define SCTP_ASOC_KILL_TIMEOUT 10 /* number of ms to retry kill of inpcb */ 681 682#define SCTP_DEF_MAX_INIT 8 683#define SCTP_DEF_MAX_SEND 10 684#define SCTP_DEF_MAX_PATH_RTX 5 685#define SCTP_DEF_PATH_PF_THRESHOLD SCTP_DEF_MAX_PATH_RTX 686 687#define SCTP_DEF_PMTU_RAISE_SEC 600 /* 10 min between raise attempts */ 688 689 690/* How many streams I request initally by default */ 691#define SCTP_OSTREAM_INITIAL 10 692#define SCTP_ISTREAM_INITIAL 2048 693 694/* 695 * How many smallest_mtu's need to increase before a window update sack is 696 * sent (should be a power of 2). 697 */ 698/* Send window update (incr * this > hiwat). Should be a power of 2 */ 699#define SCTP_MINIMAL_RWND (4096) /* minimal rwnd */ 700 701#define SCTP_ADDRMAX 16 702 703/* SCTP DEBUG Switch parameters */ 704#define SCTP_DEBUG_TIMER1 0x00000001 705#define SCTP_DEBUG_TIMER2 0x00000002 /* unused */ 706#define SCTP_DEBUG_TIMER3 0x00000004 /* unused */ 707#define SCTP_DEBUG_TIMER4 0x00000008 708#define SCTP_DEBUG_OUTPUT1 0x00000010 709#define SCTP_DEBUG_OUTPUT2 0x00000020 710#define SCTP_DEBUG_OUTPUT3 0x00000040 711#define SCTP_DEBUG_OUTPUT4 0x00000080 712#define SCTP_DEBUG_UTIL1 0x00000100 713#define SCTP_DEBUG_UTIL2 0x00000200 /* unused */ 714#define SCTP_DEBUG_AUTH1 0x00000400 715#define SCTP_DEBUG_AUTH2 0x00000800 /* unused */ 716#define SCTP_DEBUG_INPUT1 0x00001000 717#define SCTP_DEBUG_INPUT2 0x00002000 718#define SCTP_DEBUG_INPUT3 0x00004000 719#define SCTP_DEBUG_INPUT4 0x00008000 /* unused */ 720#define SCTP_DEBUG_ASCONF1 0x00010000 721#define SCTP_DEBUG_ASCONF2 0x00020000 722#define SCTP_DEBUG_OUTPUT5 0x00040000 /* unused */ 723#define SCTP_DEBUG_XXX 0x00080000 /* unused */ 724#define SCTP_DEBUG_PCB1 0x00100000 725#define SCTP_DEBUG_PCB2 0x00200000 /* unused */ 726#define SCTP_DEBUG_PCB3 0x00400000 727#define SCTP_DEBUG_PCB4 0x00800000 728#define SCTP_DEBUG_INDATA1 0x01000000 729#define SCTP_DEBUG_INDATA2 0x02000000 /* unused */ 730#define SCTP_DEBUG_INDATA3 0x04000000 /* unused */ 731#define SCTP_DEBUG_CRCOFFLOAD 0x08000000 /* unused */ 732#define SCTP_DEBUG_USRREQ1 0x10000000 /* unused */ 733#define SCTP_DEBUG_USRREQ2 0x20000000 /* unused */ 734#define SCTP_DEBUG_PEEL1 0x40000000 735#if defined(__Userspace__) 736#define SCTP_DEBUG_USR 0x80000000 737#else 738#define SCTP_DEBUG_XXXXX 0x80000000 /* unused */ 739#endif 740#define SCTP_DEBUG_ALL 0x7ff3ffff 741#define SCTP_DEBUG_NOISY 0x00040000 742 743/* What sender needs to see to avoid SWS or we consider peers rwnd 0 */ 744#define SCTP_SWS_SENDER_DEF 1420 745 746/* 747 * SWS is scaled to the sb_hiwat of the socket. A value of 2 is hiwat/4, 1 748 * would be hiwat/2 etc. 749 */ 750/* What receiver needs to see in sockbuf or we tell peer its 1 */ 751#define SCTP_SWS_RECEIVER_DEF 3000 752 753#define SCTP_INITIAL_CWND 4380 754 755#define SCTP_DEFAULT_MTU 1500 /* emergency default MTU */ 756/* amount peer is obligated to have in rwnd or I will abort */ 757#define SCTP_MIN_RWND 1500 758 759#define SCTP_DEFAULT_MAXSEGMENT 65535 760 761#define SCTP_CHUNK_BUFFER_SIZE 512 762#define SCTP_PARAM_BUFFER_SIZE 512 763 764/* small chunk store for looking at chunk_list in auth */ 765#define SCTP_SMALL_CHUNK_STORE 260 766 767#define SCTP_HOW_MANY_SECRETS 2 /* how many secrets I keep */ 768 769#define SCTP_NUMBER_OF_SECRETS 8 /* or 8 * 4 = 32 octets */ 770#define SCTP_SECRET_SIZE 32 /* number of octets in a 256 bits */ 771 772 773/* 774 * SCTP upper layer notifications 775 */ 776#define SCTP_NOTIFY_ASSOC_UP 1 777#define SCTP_NOTIFY_ASSOC_DOWN 2 778#define SCTP_NOTIFY_INTERFACE_DOWN 3 779#define SCTP_NOTIFY_INTERFACE_UP 4 780#define SCTP_NOTIFY_SENT_DG_FAIL 5 781#define SCTP_NOTIFY_UNSENT_DG_FAIL 6 782#define SCTP_NOTIFY_SPECIAL_SP_FAIL 7 783#define SCTP_NOTIFY_ASSOC_LOC_ABORTED 8 784#define SCTP_NOTIFY_ASSOC_REM_ABORTED 9 785#define SCTP_NOTIFY_ASSOC_RESTART 10 786#define SCTP_NOTIFY_PEER_SHUTDOWN 11 787#define SCTP_NOTIFY_ASCONF_ADD_IP 12 788#define SCTP_NOTIFY_ASCONF_DELETE_IP 13 789#define SCTP_NOTIFY_ASCONF_SET_PRIMARY 14 790#define SCTP_NOTIFY_PARTIAL_DELVIERY_INDICATION 15 791#define SCTP_NOTIFY_INTERFACE_CONFIRMED 16 792#define SCTP_NOTIFY_STR_RESET_RECV 17 793#define SCTP_NOTIFY_STR_RESET_SEND 18 794#define SCTP_NOTIFY_STR_RESET_FAILED_OUT 19 795#define SCTP_NOTIFY_STR_RESET_FAILED_IN 20 796#define SCTP_NOTIFY_STR_RESET_DENIED_OUT 21 797#define SCTP_NOTIFY_STR_RESET_DENIED_IN 22 798#define SCTP_NOTIFY_AUTH_NEW_KEY 23 799#define SCTP_NOTIFY_AUTH_FREE_KEY 24 800#define SCTP_NOTIFY_NO_PEER_AUTH 25 801#define SCTP_NOTIFY_SENDER_DRY 26 802#define SCTP_NOTIFY_REMOTE_ERROR 27 803 804/* This is the value for messages that are NOT completely 805 * copied down where we will start to split the message. 806 * So, with our default, we split only if the piece we 807 * want to take will fill up a full MTU (assuming 808 * a 1500 byte MTU). 809 */ 810#define SCTP_DEFAULT_SPLIT_POINT_MIN 2904 811 812/* Maximum length of diagnostic information in error causes */ 813#define SCTP_DIAG_INFO_LEN 64 814 815/* ABORT CODES and other tell-tale location 816 * codes are generated by adding the below 817 * to the instance id. 818 */ 819 820/* File defines */ 821#define SCTP_FROM_SCTP_INPUT 0x10000000 822#define SCTP_FROM_SCTP_PCB 0x20000000 823#define SCTP_FROM_SCTP_INDATA 0x30000000 824#define SCTP_FROM_SCTP_TIMER 0x40000000 825#define SCTP_FROM_SCTP_USRREQ 0x50000000 826#define SCTP_FROM_SCTPUTIL 0x60000000 827#define SCTP_FROM_SCTP6_USRREQ 0x70000000 828#define SCTP_FROM_SCTP_ASCONF 0x80000000 829#define SCTP_FROM_SCTP_OUTPUT 0x90000000 830#define SCTP_FROM_SCTP_PEELOFF 0xa0000000 831#define SCTP_FROM_SCTP_PANDA 0xb0000000 832#define SCTP_FROM_SCTP_SYSCTL 0xc0000000 833 834/* Location ID's */ 835#define SCTP_LOC_1 0x00000001 836#define SCTP_LOC_2 0x00000002 837#define SCTP_LOC_3 0x00000003 838#define SCTP_LOC_4 0x00000004 839#define SCTP_LOC_5 0x00000005 840#define SCTP_LOC_6 0x00000006 841#define SCTP_LOC_7 0x00000007 842#define SCTP_LOC_8 0x00000008 843#define SCTP_LOC_9 0x00000009 844#define SCTP_LOC_10 0x0000000a 845#define SCTP_LOC_11 0x0000000b 846#define SCTP_LOC_12 0x0000000c 847#define SCTP_LOC_13 0x0000000d 848#define SCTP_LOC_14 0x0000000e 849#define SCTP_LOC_15 0x0000000f 850#define SCTP_LOC_16 0x00000010 851#define SCTP_LOC_17 0x00000011 852#define SCTP_LOC_18 0x00000012 853#define SCTP_LOC_19 0x00000013 854#define SCTP_LOC_20 0x00000014 855#define SCTP_LOC_21 0x00000015 856#define SCTP_LOC_22 0x00000016 857#define SCTP_LOC_23 0x00000017 858#define SCTP_LOC_24 0x00000018 859#define SCTP_LOC_25 0x00000019 860#define SCTP_LOC_26 0x0000001a 861#define SCTP_LOC_27 0x0000001b 862#define SCTP_LOC_28 0x0000001c 863#define SCTP_LOC_29 0x0000001d 864#define SCTP_LOC_30 0x0000001e 865#define SCTP_LOC_31 0x0000001f 866#define SCTP_LOC_32 0x00000020 867#define SCTP_LOC_33 0x00000021 868 869 870/* Free assoc codes */ 871#define SCTP_NORMAL_PROC 0 872#define SCTP_PCBFREE_NOFORCE 1 873#define SCTP_PCBFREE_FORCE 2 874 875/* From codes for adding addresses */ 876#define SCTP_ADDR_IS_CONFIRMED 8 877#define SCTP_ADDR_DYNAMIC_ADDED 6 878#define SCTP_IN_COOKIE_PROC 100 879#define SCTP_ALLOC_ASOC 1 880#define SCTP_LOAD_ADDR_2 2 881#define SCTP_LOAD_ADDR_3 3 882#define SCTP_LOAD_ADDR_4 4 883#define SCTP_LOAD_ADDR_5 5 884 885#define SCTP_DONOT_SETSCOPE 0 886#define SCTP_DO_SETSCOPE 1 887 888 889/* This value determines the default for when 890 * we try to add more on the send queue., if 891 * there is room. This prevents us from cycling 892 * into the copy_resume routine to often if 893 * we have not got enough space to add a decent 894 * enough size message. Note that if we have enough 895 * space to complete the message copy we will always 896 * add to the message, no matter what the size. Its 897 * only when we reach the point that we have some left 898 * to add, there is only room for part of it that we 899 * will use this threshold. Its also a sysctl. 900 */ 901#define SCTP_DEFAULT_ADD_MORE 1452 902 903#ifndef SCTP_PCBHASHSIZE 904/* default number of association hash buckets in each endpoint */ 905#define SCTP_PCBHASHSIZE 256 906#endif 907#ifndef SCTP_TCBHASHSIZE 908#define SCTP_TCBHASHSIZE 1024 909#endif 910 911#ifndef SCTP_CHUNKQUEUE_SCALE 912#define SCTP_CHUNKQUEUE_SCALE 10 913#endif 914 915#ifdef __FreeBSD__ 916/* clock variance is 1 ms */ 917#define SCTP_CLOCK_GRANULARITY 1 918#else 919/* clock variance is 10 ms */ 920#define SCTP_CLOCK_GRANULARITY 10 921#endif 922#define IP_HDR_SIZE 40 /* we use the size of a IP6 header here this 923 * detracts a small amount for ipv4 but it 924 * simplifies the ipv6 addition */ 925 926/* Argument magic number for sctp_inpcb_free() */ 927 928/* third argument */ 929#define SCTP_CALLED_DIRECTLY_NOCMPSET 0 930#define SCTP_CALLED_AFTER_CMPSET_OFCLOSE 1 931#define SCTP_CALLED_FROM_INPKILL_TIMER 2 932/* second argument */ 933#define SCTP_FREE_SHOULD_USE_ABORT 1 934#define SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE 0 935 936#ifndef IPPROTO_SCTP 937#define IPPROTO_SCTP 132 /* the Official IANA number :-) */ 938#endif /* !IPPROTO_SCTP */ 939 940#define SCTP_MAX_DATA_BUNDLING 256 941 942/* modular comparison */ 943/* See RFC 1982 for details. */ 944#define SCTP_SSN_GT(a, b) (((a < b) && ((uint16_t)(b - a) > (1U<<15))) || \ 945 ((a > b) && ((uint16_t)(a - b) < (1U<<15)))) 946#define SCTP_SSN_GE(a, b) (SCTP_SSN_GT(a, b) || (a == b)) 947#define SCTP_TSN_GT(a, b) (((a < b) && ((uint32_t)(b - a) > (1U<<31))) || \ 948 ((a > b) && ((uint32_t)(a - b) < (1U<<31)))) 949#define SCTP_TSN_GE(a, b) (SCTP_TSN_GT(a, b) || (a == b)) 950 951/* Mapping array manipulation routines */ 952#define SCTP_IS_TSN_PRESENT(arry, gap) ((arry[(gap >> 3)] >> (gap & 0x07)) & 0x01) 953#define SCTP_SET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] |= (0x01 << ((gap & 0x07)))) 954#define SCTP_UNSET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] &= ((~(0x01 << ((gap & 0x07)))) & 0xff)) 955#define SCTP_CALC_TSN_TO_GAP(gap, tsn, mapping_tsn) do { \ 956 if (tsn >= mapping_tsn) { \ 957 gap = tsn - mapping_tsn; \ 958 } else { \ 959 gap = (MAX_TSN - mapping_tsn) + tsn + 1; \ 960 } \ 961 } while (0) 962 963 964#define SCTP_RETRAN_DONE -1 965#define SCTP_RETRAN_EXIT -2 966 967/* 968 * This value defines the number of vtag block time wait entry's per list 969 * element. Each entry will take 2 4 byte ints (and of course the overhead 970 * of the next pointer as well). Using 15 as an example will yield * ((8 * 971 * 15) + 8) or 128 bytes of overhead for each timewait block that gets 972 * initialized. Increasing it to 31 would yeild 256 bytes per block. 973 */ 974#define SCTP_NUMBER_IN_VTAG_BLOCK 15 975/* 976 * If we use the STACK option, we have an array of this size head pointers. 977 * This array is mod'd the with the size to find which bucket and then all 978 * entries must be searched to see if the tag is in timed wait. If so we 979 * reject it. 980 */ 981#define SCTP_STACK_VTAG_HASH_SIZE 32 982 983/* 984 * Number of seconds of time wait for a vtag. 985 */ 986#define SCTP_TIME_WAIT 60 987 988/* How many micro seconds is the cutoff from 989 * local lan type rtt's 990 */ 991 /* 992 * We allow 900us for the rtt. 993 */ 994#define SCTP_LOCAL_LAN_RTT 900 995#define SCTP_LAN_UNKNOWN 0 996#define SCTP_LAN_LOCAL 1 997#define SCTP_LAN_INTERNET 2 998 999#define SCTP_SEND_BUFFER_SPLITTING 0x00000001 1000#define SCTP_RECV_BUFFER_SPLITTING 0x00000002 1001 1002/* The system retains a cache of free chunks such to 1003 * cut down on calls the memory allocation system. There 1004 * is a per association limit of free items and a overall 1005 * system limit. If either one gets hit then the resource 1006 * stops being cached. 1007 */ 1008 1009#define SCTP_DEF_ASOC_RESC_LIMIT 10 1010#define SCTP_DEF_SYSTEM_RESC_LIMIT 1000 1011 1012/*- 1013 * defines for socket lock states. 1014 * Used by __APPLE__ and SCTP_SO_LOCK_TESTING 1015 */ 1016#define SCTP_SO_LOCKED 1 1017#define SCTP_SO_NOT_LOCKED 0 1018 1019 1020#define SCTP_HOLDS_LOCK 1 1021#define SCTP_NOT_LOCKED 0 1022 1023/*- 1024 * For address locks, do we hold the lock? 1025 */ 1026#define SCTP_ADDR_LOCKED 1 1027#define SCTP_ADDR_NOT_LOCKED 0 1028 1029#define IN4_ISPRIVATE_ADDRESS(a) \ 1030 ((((uint8_t *)&(a)->s_addr)[0] == 10) || \ 1031 ((((uint8_t *)&(a)->s_addr)[0] == 172) && \ 1032 (((uint8_t *)&(a)->s_addr)[1] >= 16) && \ 1033 (((uint8_t *)&(a)->s_addr)[1] <= 32)) || \ 1034 ((((uint8_t *)&(a)->s_addr)[0] == 192) && \ 1035 (((uint8_t *)&(a)->s_addr)[1] == 168))) 1036 1037#define IN4_ISLOOPBACK_ADDRESS(a) \ 1038 ((((uint8_t *)&(a)->s_addr)[0] == 127) && \ 1039 (((uint8_t *)&(a)->s_addr)[1] == 0) && \ 1040 (((uint8_t *)&(a)->s_addr)[2] == 0) && \ 1041 (((uint8_t *)&(a)->s_addr)[3] == 1)) 1042 1043#define IN4_ISLINKLOCAL_ADDRESS(a) \ 1044 ((((uint8_t *)&(a)->s_addr)[0] == 169) && \ 1045 (((uint8_t *)&(a)->s_addr)[1] == 254)) 1046 1047#if defined(__Userspace__) 1048#if defined(__Userspace_os_Windows) 1049#define SCTP_GETTIME_TIMEVAL(x) getwintimeofday(x) 1050#define SCTP_GETPTIME_TIMEVAL(x) getwintimeofday(x) /* this doesn't seem to ever be used.. */ 1051#else 1052#define SCTP_GETTIME_TIMEVAL(x) gettimeofday(x, NULL) 1053#define SCTP_GETPTIME_TIMEVAL(x) gettimeofday(x, NULL) 1054#endif 1055#endif 1056 1057#if defined(_KERNEL) 1058#define SCTP_GETTIME_TIMEVAL(x) (getmicrouptime(x)) 1059#define SCTP_GETPTIME_TIMEVAL(x) (microuptime(x)) 1060#endif 1061 1062#if defined(_KERNEL) || defined(__Userspace__) 1063#define sctp_sowwakeup(inp, so) \ 1064do { \ 1065 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1066 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \ 1067 } else { \ 1068 sowwakeup(so); \ 1069 } \ 1070} while (0) 1071 1072#if defined(__FreeBSD__) || defined(__Windows__) || defined(__Userspace__) 1073#define sctp_sowwakeup_locked(inp, so) \ 1074do { \ 1075 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1076 SOCKBUF_UNLOCK(&((so)->so_snd)); \ 1077 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \ 1078 } else { \ 1079 sowwakeup_locked(so); \ 1080 } \ 1081} while (0) 1082#else 1083#define sctp_sowwakeup_locked(inp, so) \ 1084do { \ 1085 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1086 SOCKBUF_UNLOCK(&((so)->so_snd)); \ 1087 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \ 1088 } else { \ 1089 sowwakeup(so); \ 1090 } \ 1091} while (0) 1092#endif 1093 1094#define sctp_sorwakeup(inp, so) \ 1095do { \ 1096 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1097 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \ 1098 } else { \ 1099 sorwakeup(so); \ 1100 } \ 1101} while (0) 1102 1103#if defined(__FreeBSD__) || defined(__Windows__) || defined(__Userspace__) 1104#define sctp_sorwakeup_locked(inp, so) \ 1105do { \ 1106 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1107 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \ 1108 SOCKBUF_UNLOCK(&((so)->so_rcv)); \ 1109 } else { \ 1110 sorwakeup_locked(so); \ 1111 } \ 1112} while (0) 1113#else 1114 1115#define sctp_sorwakeup_locked(inp, so) \ 1116do { \ 1117 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1118 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \ 1119 SOCKBUF_UNLOCK(&((so)->so_rcv)); \ 1120 } else { \ 1121 sorwakeup(so); \ 1122 } \ 1123} while (0) 1124#endif 1125 1126#endif /* _KERNEL || __Userspace__*/ 1127#endif 1128