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 271204 2014-09-06 19:12:14Z tuexen $"); 36 #endif 37 38 #ifndef _NETINET_SCTP_CONSTANTS_H_ 39 #define _NETINET_SCTP_CONSTANTS_H_ 40 41 #if defined(__Userspace_os_Windows) 42 extern void getwintimeofday(struct timeval *tv); 43 #endif 44 45 /* IANA assigned port number for SCTP over UDP encapsulation */ 46 #define SCTP_OVER_UDP_TUNNELING_PORT 9899 47 48 /* Number of packets to get before sack sent by default */ 49 #define SCTP_DEFAULT_SACK_FREQ 2 50 51 /* Address limit - This variable is calculated 52 * based on an 65535 byte max ip packet. We take out 100 bytes 53 * for the cookie, 40 bytes for a v6 header and 32 54 * bytes for the init structure. A second init structure 55 * for the init-ack and then finally a third one for the 56 * imbedded init. This yeilds 100+40+(3 * 32) = 236 bytes. 57 * This leaves 65299 bytes for addresses. We throw out the 299 bytes. 58 * Now whatever we send in the INIT() we need to allow to get back in the 59 * INIT-ACK plus all the values from INIT and INIT-ACK 60 * listed in the cookie. Plus we need some overhead for 61 * maybe copied parameters in the COOKIE. If we 62 * allow 1080 addresses, and each side has 1080 V6 addresses 63 * that will be 21600 bytes. In the INIT-ACK we will 64 * see the INIT-ACK 21600 + 43200 in the cookie. This leaves 65 * about 500 bytes slack for misc things in the cookie. 66 */ 67 #define SCTP_ADDRESS_LIMIT 1080 68 69 /* We need at least 2k of space for us, inits 70 * larger than that lets abort. 71 */ 72 #define SCTP_LARGEST_INIT_ACCEPTED (65535 - 2048) 73 74 /* Number of addresses where we just skip the counting */ 75 #define SCTP_COUNT_LIMIT 40 76 77 #define SCTP_ZERO_COPY_TICK_DELAY (((100 * hz) + 999) / 1000) 78 #define SCTP_ZERO_COPY_SENDQ_TICK_DELAY (((100 * hz) + 999) / 1000) 79 80 /* Number of ticks to delay before running 81 * iterator on an address change. 82 */ 83 #define SCTP_ADDRESS_TICK_DELAY 2 84 85 #define SCTP_VERSION_STRING "KAME-BSD 1.1" 86 /* #define SCTP_AUDITING_ENABLED 1 used for debug/auditing */ 87 #define SCTP_AUDIT_SIZE 256 88 89 90 #define SCTP_KTRHEAD_NAME "sctp_iterator" 91 #define SCTP_KTHREAD_PAGES 0 92 93 #define SCTP_MCORE_NAME "sctp_core_worker" 94 95 96 /* If you support Multi-VRF how big to 97 * make the initial array of VRF's to. 98 */ 99 #define SCTP_DEFAULT_VRF_SIZE 4 100 101 /* constants for rto calc */ 102 #define sctp_align_safe_nocopy 0 103 #define sctp_align_unsafe_makecopy 1 104 105 /* JRS - Values defined for the HTCP algorithm */ 106 #define ALPHA_BASE (1<<7) /* 1.0 with shift << 7 */ 107 #define BETA_MIN (1<<6) /* 0.5 with shift << 7 */ 108 #define BETA_MAX 102 /* 0.8 with shift << 7 */ 109 110 /* Places that CWND log can happen from */ 111 #define SCTP_CWND_LOG_FROM_FR 1 112 #define SCTP_CWND_LOG_FROM_RTX 2 113 #define SCTP_CWND_LOG_FROM_BRST 3 114 #define SCTP_CWND_LOG_FROM_SS 4 115 #define SCTP_CWND_LOG_FROM_CA 5 116 #define SCTP_CWND_LOG_FROM_SAT 6 117 #define SCTP_BLOCK_LOG_INTO_BLK 7 118 #define SCTP_BLOCK_LOG_OUTOF_BLK 8 119 #define SCTP_BLOCK_LOG_CHECK 9 120 #define SCTP_STR_LOG_FROM_INTO_STRD 10 121 #define SCTP_STR_LOG_FROM_IMMED_DEL 11 122 #define SCTP_STR_LOG_FROM_INSERT_HD 12 123 #define SCTP_STR_LOG_FROM_INSERT_MD 13 124 #define SCTP_STR_LOG_FROM_INSERT_TL 14 125 #define SCTP_STR_LOG_FROM_MARK_TSN 15 126 #define SCTP_STR_LOG_FROM_EXPRS_DEL 16 127 #define SCTP_FR_LOG_BIGGEST_TSNS 17 128 #define SCTP_FR_LOG_STRIKE_TEST 18 129 #define SCTP_FR_LOG_STRIKE_CHUNK 19 130 #define SCTP_FR_T3_TIMEOUT 20 131 #define SCTP_MAP_PREPARE_SLIDE 21 132 #define SCTP_MAP_SLIDE_FROM 22 133 #define SCTP_MAP_SLIDE_RESULT 23 134 #define SCTP_MAP_SLIDE_CLEARED 24 135 #define SCTP_MAP_SLIDE_NONE 25 136 #define SCTP_FR_T3_MARK_TIME 26 137 #define SCTP_FR_T3_MARKED 27 138 #define SCTP_FR_T3_STOPPED 28 139 #define SCTP_FR_MARKED 30 140 #define SCTP_CWND_LOG_NOADV_SS 31 141 #define SCTP_CWND_LOG_NOADV_CA 32 142 #define SCTP_MAX_BURST_APPLIED 33 143 #define SCTP_MAX_IFP_APPLIED 34 144 #define SCTP_MAX_BURST_ERROR_STOP 35 145 #define SCTP_INCREASE_PEER_RWND 36 146 #define SCTP_DECREASE_PEER_RWND 37 147 #define SCTP_SET_PEER_RWND_VIA_SACK 38 148 #define SCTP_LOG_MBCNT_INCREASE 39 149 #define SCTP_LOG_MBCNT_DECREASE 40 150 #define SCTP_LOG_MBCNT_CHKSET 41 151 #define SCTP_LOG_NEW_SACK 42 152 #define SCTP_LOG_TSN_ACKED 43 153 #define SCTP_LOG_TSN_REVOKED 44 154 #define SCTP_LOG_LOCK_TCB 45 155 #define SCTP_LOG_LOCK_INP 46 156 #define SCTP_LOG_LOCK_SOCK 47 157 #define SCTP_LOG_LOCK_SOCKBUF_R 48 158 #define SCTP_LOG_LOCK_SOCKBUF_S 49 159 #define SCTP_LOG_LOCK_CREATE 50 160 #define SCTP_LOG_INITIAL_RTT 51 161 #define SCTP_LOG_RTTVAR 52 162 #define SCTP_LOG_SBALLOC 53 163 #define SCTP_LOG_SBFREE 54 164 #define SCTP_LOG_SBRESULT 55 165 #define SCTP_FR_DUPED 56 166 #define SCTP_FR_MARKED_EARLY 57 167 #define SCTP_FR_CWND_REPORT 58 168 #define SCTP_FR_CWND_REPORT_START 59 169 #define SCTP_FR_CWND_REPORT_STOP 60 170 #define SCTP_CWND_LOG_FROM_SEND 61 171 #define SCTP_CWND_INITIALIZATION 62 172 #define SCTP_CWND_LOG_FROM_T3 63 173 #define SCTP_CWND_LOG_FROM_SACK 64 174 #define SCTP_CWND_LOG_NO_CUMACK 65 175 #define SCTP_CWND_LOG_FROM_RESEND 66 176 #define SCTP_FR_LOG_CHECK_STRIKE 67 177 #define SCTP_SEND_NOW_COMPLETES 68 178 #define SCTP_CWND_LOG_FILL_OUTQ_CALLED 69 179 #define SCTP_CWND_LOG_FILL_OUTQ_FILLS 70 180 #define SCTP_LOG_FREE_SENT 71 181 #define SCTP_NAGLE_APPLIED 72 182 #define SCTP_NAGLE_SKIPPED 73 183 #define SCTP_WAKESND_FROM_SACK 74 184 #define SCTP_WAKESND_FROM_FWDTSN 75 185 #define SCTP_NOWAKE_FROM_SACK 76 186 #define SCTP_CWNDLOG_PRESEND 77 187 #define SCTP_CWNDLOG_ENDSEND 78 188 #define SCTP_AT_END_OF_SACK 79 189 #define SCTP_REASON_FOR_SC 80 190 #define SCTP_BLOCK_LOG_INTO_BLKA 81 191 #define SCTP_ENTER_USER_RECV 82 192 #define SCTP_USER_RECV_SACKS 83 193 #define SCTP_SORECV_BLOCKSA 84 194 #define SCTP_SORECV_BLOCKSB 85 195 #define SCTP_SORECV_DONE 86 196 #define SCTP_SACK_RWND_UPDATE 87 197 #define SCTP_SORECV_ENTER 88 198 #define SCTP_SORECV_ENTERPL 89 199 #define SCTP_MBUF_INPUT 90 200 #define SCTP_MBUF_IALLOC 91 201 #define SCTP_MBUF_IFREE 92 202 #define SCTP_MBUF_ICOPY 93 203 #define SCTP_MBUF_SPLIT 94 204 #define SCTP_SORCV_FREECTL 95 205 #define SCTP_SORCV_DOESCPY 96 206 #define SCTP_SORCV_DOESLCK 97 207 #define SCTP_SORCV_DOESADJ 98 208 #define SCTP_SORCV_BOTWHILE 99 209 #define SCTP_SORCV_PASSBF 100 210 #define SCTP_SORCV_ADJD 101 211 #define SCTP_UNKNOWN_MAX 102 212 #define SCTP_RANDY_STUFF 103 213 #define SCTP_RANDY_STUFF1 104 214 #define SCTP_STRMOUT_LOG_ASSIGN 105 215 #define SCTP_STRMOUT_LOG_SEND 106 216 #define SCTP_FLIGHT_LOG_DOWN_CA 107 217 #define SCTP_FLIGHT_LOG_UP 108 218 #define SCTP_FLIGHT_LOG_DOWN_GAP 109 219 #define SCTP_FLIGHT_LOG_DOWN_RSND 110 220 #define SCTP_FLIGHT_LOG_UP_RSND 111 221 #define SCTP_FLIGHT_LOG_DOWN_RSND_TO 112 222 #define SCTP_FLIGHT_LOG_DOWN_WP 113 223 #define SCTP_FLIGHT_LOG_UP_REVOKE 114 224 #define SCTP_FLIGHT_LOG_DOWN_PDRP 115 225 #define SCTP_FLIGHT_LOG_DOWN_PMTU 116 226 #define SCTP_SACK_LOG_NORMAL 117 227 #define SCTP_SACK_LOG_EXPRESS 118 228 #define SCTP_MAP_TSN_ENTERS 119 229 #define SCTP_THRESHOLD_CLEAR 120 230 #define SCTP_THRESHOLD_INCR 121 231 #define SCTP_FLIGHT_LOG_DWN_WP_FWD 122 232 #define SCTP_FWD_TSN_CHECK 123 233 #define SCTP_LOG_MAX_TYPES 124 234 /* 235 * To turn on various logging, you must first enable 'options KTR' and 236 * you might want to bump the entires 'options KTR_ENTRIES=80000'. 237 * To get something to log you define one of the logging defines. 238 * (see LINT). 239 * 240 * This gets the compile in place, but you still need to turn the 241 * logging flag on too in the sysctl (see in sctp.h). 242 */ 243 244 #define SCTP_LOG_EVENT_UNKNOWN 0 245 #define SCTP_LOG_EVENT_CWND 1 246 #define SCTP_LOG_EVENT_BLOCK 2 247 #define SCTP_LOG_EVENT_STRM 3 248 #define SCTP_LOG_EVENT_FR 4 249 #define SCTP_LOG_EVENT_MAP 5 250 #define SCTP_LOG_EVENT_MAXBURST 6 251 #define SCTP_LOG_EVENT_RWND 7 252 #define SCTP_LOG_EVENT_MBCNT 8 253 #define SCTP_LOG_EVENT_SACK 9 254 #define SCTP_LOG_LOCK_EVENT 10 255 #define SCTP_LOG_EVENT_RTT 11 256 #define SCTP_LOG_EVENT_SB 12 257 #define SCTP_LOG_EVENT_NAGLE 13 258 #define SCTP_LOG_EVENT_WAKE 14 259 #define SCTP_LOG_MISC_EVENT 15 260 #define SCTP_LOG_EVENT_CLOSE 16 261 #define SCTP_LOG_EVENT_MBUF 17 262 #define SCTP_LOG_CHUNK_PROC 18 263 #define SCTP_LOG_ERROR_RET 19 264 265 #define SCTP_LOG_MAX_EVENT 20 266 267 #define SCTP_LOCK_UNKNOWN 2 268 269 270 /* number of associations by default for zone allocation */ 271 #define SCTP_MAX_NUM_OF_ASOC 40000 272 /* how many addresses per assoc remote and local */ 273 #define SCTP_SCALE_FOR_ADDR 2 274 275 /* default MULTIPLE_ASCONF mode enable(1)/disable(0) value (sysctl) */ 276 #define SCTP_DEFAULT_MULTIPLE_ASCONFS 0 277 278 /* 279 * Theshold for rwnd updates, we have to read (sb_hiwat >> 280 * SCTP_RWND_HIWAT_SHIFT) before we will look to see if we need to send a 281 * window update sack. When we look, we compare the last rwnd we sent vs the 282 * current rwnd. It too must be greater than this value. Using 3 divdes the 283 * hiwat by 8, so for 200k rwnd we need to read 24k. For a 64k rwnd we need 284 * to read 8k. This seems about right.. I hope :-D.. we do set a 285 * min of a MTU on it so if the rwnd is real small we will insist 286 * on a full MTU of 1500 bytes. 287 */ 288 #define SCTP_RWND_HIWAT_SHIFT 3 289 290 /* How much of the rwnd must the 291 * message be taking up to start partial delivery. 292 * We calculate this by shifing the hi_water (recv_win) 293 * left the following .. set to 1, when a message holds 294 * 1/2 the rwnd. If we set it to 2 when a message holds 295 * 1/4 the rwnd...etc.. 296 */ 297 298 #define SCTP_PARTIAL_DELIVERY_SHIFT 1 299 300 /* 301 * default HMAC for cookies, etc... use one of the AUTH HMAC id's 302 * SCTP_HMAC is the HMAC_ID to use 303 * SCTP_SIGNATURE_SIZE is the digest length 304 */ 305 #define SCTP_HMAC SCTP_AUTH_HMAC_ID_SHA1 306 #define SCTP_SIGNATURE_SIZE SCTP_AUTH_DIGEST_LEN_SHA1 307 #define SCTP_SIGNATURE_ALOC_SIZE SCTP_SIGNATURE_SIZE 308 309 /* 310 * the SCTP protocol signature this includes the version number encoded in 311 * the last 4 bits of the signature. 312 */ 313 #define PROTO_SIGNATURE_A 0x30000000 314 #define SCTP_VERSION_NUMBER 0x3 315 316 #define MAX_TSN 0xffffffff 317 318 /* how many executions every N tick's */ 319 #define SCTP_ITERATOR_MAX_AT_ONCE 20 320 321 /* number of clock ticks between iterator executions */ 322 #define SCTP_ITERATOR_TICKS 1 323 324 /* 325 * option: If you comment out the following you will receive the old behavior 326 * of obeying cwnd for the fast retransmit algorithm. With this defined a FR 327 * happens right away with-out waiting for the flightsize to drop below the 328 * cwnd value (which is reduced by the FR to 1/2 the inflight packets). 329 */ 330 #define SCTP_IGNORE_CWND_ON_FR 1 331 332 /* 333 * Adds implementors guide behavior to only use newest highest update in SACK 334 * gap ack's to figure out if you need to stroke a chunk for FR. 335 */ 336 #define SCTP_NO_FR_UNLESS_SEGMENT_SMALLER 1 337 338 /* default max I can burst out after a fast retransmit, 0 disables it */ 339 #define SCTP_DEF_MAX_BURST 4 340 #define SCTP_DEF_HBMAX_BURST 4 341 #define SCTP_DEF_FRMAX_BURST 4 342 343 /* RTO calculation flag to say if it 344 * is safe to determine local lan or not. 345 */ 346 #define SCTP_RTT_FROM_NON_DATA 0 347 #define SCTP_RTT_FROM_DATA 1 348 349 350 /* IP hdr (20/40) + 12+2+2 (enet) + sctp common 12 */ 351 #define SCTP_FIRST_MBUF_RESV 68 352 /* Packet transmit states in the sent field */ 353 #define SCTP_DATAGRAM_UNSENT 0 354 #define SCTP_DATAGRAM_SENT 1 355 #define SCTP_DATAGRAM_RESEND1 2 /* not used (in code, but may 356 * hit this value) */ 357 #define SCTP_DATAGRAM_RESEND2 3 /* not used (in code, but may 358 * hit this value) */ 359 #define SCTP_DATAGRAM_RESEND 4 360 #define SCTP_DATAGRAM_ACKED 10010 361 #define SCTP_DATAGRAM_MARKED 20010 362 #define SCTP_FORWARD_TSN_SKIP 30010 363 #define SCTP_DATAGRAM_NR_ACKED 40010 364 365 /* chunk output send from locations */ 366 #define SCTP_OUTPUT_FROM_USR_SEND 0 367 #define SCTP_OUTPUT_FROM_T3 1 368 #define SCTP_OUTPUT_FROM_INPUT_ERROR 2 369 #define SCTP_OUTPUT_FROM_CONTROL_PROC 3 370 #define SCTP_OUTPUT_FROM_SACK_TMR 4 371 #define SCTP_OUTPUT_FROM_SHUT_TMR 5 372 #define SCTP_OUTPUT_FROM_HB_TMR 6 373 #define SCTP_OUTPUT_FROM_SHUT_ACK_TMR 7 374 #define SCTP_OUTPUT_FROM_ASCONF_TMR 8 375 #define SCTP_OUTPUT_FROM_STRRST_TMR 9 376 #define SCTP_OUTPUT_FROM_AUTOCLOSE_TMR 10 377 #define SCTP_OUTPUT_FROM_EARLY_FR_TMR 11 378 #define SCTP_OUTPUT_FROM_STRRST_REQ 12 379 #define SCTP_OUTPUT_FROM_USR_RCVD 13 380 #define SCTP_OUTPUT_FROM_COOKIE_ACK 14 381 #define SCTP_OUTPUT_FROM_DRAIN 15 382 #define SCTP_OUTPUT_FROM_CLOSING 16 383 #define SCTP_OUTPUT_FROM_SOCKOPT 17 384 385 /* SCTP chunk types are moved sctp.h for application (NAT, FW) use */ 386 387 /* align to 32-bit sizes */ 388 #define SCTP_SIZE32(x) ((((x) + 3) >> 2) << 2) 389 390 #define IS_SCTP_CONTROL(a) ((a)->chunk_type != SCTP_DATA) 391 #define IS_SCTP_DATA(a) ((a)->chunk_type == SCTP_DATA) 392 393 394 /* SCTP parameter types */ 395 /*************0x0000 series*************/ 396 #define SCTP_HEARTBEAT_INFO 0x0001 397 #if defined(__Userspace__) 398 #define SCTP_CONN_ADDRESS 0x0004 399 #endif 400 #define SCTP_IPV4_ADDRESS 0x0005 401 #define SCTP_IPV6_ADDRESS 0x0006 402 #define SCTP_STATE_COOKIE 0x0007 403 #define SCTP_UNRECOG_PARAM 0x0008 404 #define SCTP_COOKIE_PRESERVE 0x0009 405 #define SCTP_HOSTNAME_ADDRESS 0x000b 406 #define SCTP_SUPPORTED_ADDRTYPE 0x000c 407 408 /* draft-ietf-stewart-tsvwg-strreset-xxx */ 409 #define SCTP_STR_RESET_OUT_REQUEST 0x000d 410 #define SCTP_STR_RESET_IN_REQUEST 0x000e 411 #define SCTP_STR_RESET_TSN_REQUEST 0x000f 412 #define SCTP_STR_RESET_RESPONSE 0x0010 413 #define SCTP_STR_RESET_ADD_OUT_STREAMS 0x0011 414 #define SCTP_STR_RESET_ADD_IN_STREAMS 0x0012 415 416 #define SCTP_MAX_RESET_PARAMS 2 417 #define SCTP_STREAM_RESET_TSN_DELTA 0x1000 418 419 /*************0x4000 series*************/ 420 421 /*************0x8000 series*************/ 422 #define SCTP_ECN_CAPABLE 0x8000 423 424 /* draft-ietf-tsvwg-auth-xxx */ 425 #define SCTP_RANDOM 0x8002 426 #define SCTP_CHUNK_LIST 0x8003 427 #define SCTP_HMAC_LIST 0x8004 428 /* 429 * draft-ietf-tsvwg-addip-sctp-xx param=0x8008 len=0xNNNN Byte | Byte | Byte 430 * | Byte Byte | Byte ... 431 * 432 * Where each byte is a chunk type extension supported. For example, to support 433 * all chunks one would have (in hex): 434 * 435 * 80 01 00 09 C0 C1 80 81 82 00 00 00 436 * 437 * Has the parameter. C0 = PR-SCTP (RFC3758) C1, 80 = ASCONF (addip draft) 81 438 * = Packet Drop 82 = Stream Reset 83 = Authentication 439 */ 440 #define SCTP_SUPPORTED_CHUNK_EXT 0x8008 441 442 /*************0xC000 series*************/ 443 #define SCTP_PRSCTP_SUPPORTED 0xc000 444 /* draft-ietf-tsvwg-addip-sctp */ 445 #define SCTP_ADD_IP_ADDRESS 0xc001 446 #define SCTP_DEL_IP_ADDRESS 0xc002 447 #define SCTP_ERROR_CAUSE_IND 0xc003 448 #define SCTP_SET_PRIM_ADDR 0xc004 449 #define SCTP_SUCCESS_REPORT 0xc005 450 #define SCTP_ULP_ADAPTATION 0xc006 451 /* behave-nat-draft */ 452 #define SCTP_HAS_NAT_SUPPORT 0xc007 453 #define SCTP_NAT_VTAGS 0xc008 454 455 /* bits for TOS field */ 456 #define SCTP_ECT0_BIT 0x02 457 #define SCTP_ECT1_BIT 0x01 458 #define SCTP_CE_BITS 0x03 459 460 /* below turns off above */ 461 #define SCTP_FLEXIBLE_ADDRESS 0x20 462 #define SCTP_NO_HEARTBEAT 0x40 463 464 /* mask to get sticky */ 465 #define SCTP_STICKY_OPTIONS_MASK 0x0c 466 467 468 /* 469 * SCTP states for internal state machine XXX (should match "user" values) 470 */ 471 #define SCTP_STATE_EMPTY 0x0000 472 #define SCTP_STATE_INUSE 0x0001 473 #define SCTP_STATE_COOKIE_WAIT 0x0002 474 #define SCTP_STATE_COOKIE_ECHOED 0x0004 475 #define SCTP_STATE_OPEN 0x0008 476 #define SCTP_STATE_SHUTDOWN_SENT 0x0010 477 #define SCTP_STATE_SHUTDOWN_RECEIVED 0x0020 478 #define SCTP_STATE_SHUTDOWN_ACK_SENT 0x0040 479 #define SCTP_STATE_SHUTDOWN_PENDING 0x0080 480 #define SCTP_STATE_CLOSED_SOCKET 0x0100 481 #define SCTP_STATE_ABOUT_TO_BE_FREED 0x0200 482 #define SCTP_STATE_PARTIAL_MSG_LEFT 0x0400 483 #define SCTP_STATE_WAS_ABORTED 0x0800 484 #define SCTP_STATE_IN_ACCEPT_QUEUE 0x1000 485 #define SCTP_STATE_MASK 0x007f 486 487 #define SCTP_GET_STATE(asoc) ((asoc)->state & SCTP_STATE_MASK) 488 #define SCTP_SET_STATE(asoc, newstate) ((asoc)->state = ((asoc)->state & ~SCTP_STATE_MASK) | newstate) 489 #define SCTP_CLEAR_SUBSTATE(asoc, substate) ((asoc)->state &= ~substate) 490 #define SCTP_ADD_SUBSTATE(asoc, substate) ((asoc)->state |= substate) 491 492 /* SCTP reachability state for each address */ 493 #define SCTP_ADDR_REACHABLE 0x001 494 #define SCTP_ADDR_NO_PMTUD 0x002 495 #define SCTP_ADDR_NOHB 0x004 496 #define SCTP_ADDR_BEING_DELETED 0x008 497 #define SCTP_ADDR_NOT_IN_ASSOC 0x010 498 #define SCTP_ADDR_OUT_OF_SCOPE 0x080 499 #define SCTP_ADDR_UNCONFIRMED 0x200 500 #define SCTP_ADDR_REQ_PRIMARY 0x400 501 /* JRS 5/13/07 - Added potentially failed state for CMT PF */ 502 #define SCTP_ADDR_PF 0x800 503 504 /* bound address types (e.g. valid address types to allow) */ 505 #define SCTP_BOUND_V6 0x01 506 #define SCTP_BOUND_V4 0x02 507 508 /* 509 * what is the default number of mbufs in a chain I allow before switching to 510 * a cluster 511 */ 512 #define SCTP_DEFAULT_MBUFS_IN_CHAIN 5 513 514 /* How long a cookie lives in milli-seconds */ 515 #define SCTP_DEFAULT_COOKIE_LIFE 60000 516 517 /* Maximum the mapping array will grow to (TSN mapping array) */ 518 #define SCTP_MAPPING_ARRAY 512 519 520 /* size of the inital malloc on the mapping array */ 521 #define SCTP_INITIAL_MAPPING_ARRAY 16 522 /* how much we grow the mapping array each call */ 523 #define SCTP_MAPPING_ARRAY_INCR 32 524 525 /* 526 * Here we define the timer types used by the implementation as arguments in 527 * the set/get timer type calls. 528 */ 529 #define SCTP_TIMER_INIT 0 530 #define SCTP_TIMER_RECV 1 531 #define SCTP_TIMER_SEND 2 532 #define SCTP_TIMER_HEARTBEAT 3 533 #define SCTP_TIMER_PMTU 4 534 #define SCTP_TIMER_MAXSHUTDOWN 5 535 #define SCTP_TIMER_SIGNATURE 6 536 /* 537 * number of timer types in the base SCTP structure used in the set/get and 538 * has the base default. 539 */ 540 #define SCTP_NUM_TMRS 7 541 542 /* timer types */ 543 #define SCTP_TIMER_TYPE_NONE 0 544 #define SCTP_TIMER_TYPE_SEND 1 545 #define SCTP_TIMER_TYPE_INIT 2 546 #define SCTP_TIMER_TYPE_RECV 3 547 #define SCTP_TIMER_TYPE_SHUTDOWN 4 548 #define SCTP_TIMER_TYPE_HEARTBEAT 5 549 #define SCTP_TIMER_TYPE_COOKIE 6 550 #define SCTP_TIMER_TYPE_NEWCOOKIE 7 551 #define SCTP_TIMER_TYPE_PATHMTURAISE 8 552 #define SCTP_TIMER_TYPE_SHUTDOWNACK 9 553 #define SCTP_TIMER_TYPE_ASCONF 10 554 #define SCTP_TIMER_TYPE_SHUTDOWNGUARD 11 555 #define SCTP_TIMER_TYPE_AUTOCLOSE 12 556 #define SCTP_TIMER_TYPE_EVENTWAKE 13 557 #define SCTP_TIMER_TYPE_STRRESET 14 558 #define SCTP_TIMER_TYPE_INPKILL 15 559 #define SCTP_TIMER_TYPE_ASOCKILL 16 560 #define SCTP_TIMER_TYPE_ADDR_WQ 17 561 #define SCTP_TIMER_TYPE_ZERO_COPY 18 562 #define SCTP_TIMER_TYPE_ZCOPY_SENDQ 19 563 #define SCTP_TIMER_TYPE_PRIM_DELETED 20 564 /* add new timers here - and increment LAST */ 565 #define SCTP_TIMER_TYPE_LAST 21 566 567 #define SCTP_IS_TIMER_TYPE_VALID(t) (((t) > SCTP_TIMER_TYPE_NONE) && \ 568 ((t) < SCTP_TIMER_TYPE_LAST)) 569 570 571 #if defined(__APPLE__) 572 /* Number of ticks to run the main timer at in msec */ 573 #define SCTP_MAIN_TIMER_DEFAULT 10 574 #endif 575 576 /* max number of TSN's dup'd that I will hold */ 577 #define SCTP_MAX_DUP_TSNS 20 578 579 /* 580 * Here we define the types used when setting the retry amounts. 581 */ 582 /* How many drop re-attempts we make on INIT/COOKIE-ECHO */ 583 #define SCTP_RETRY_DROPPED_THRESH 4 584 585 /* 586 * Maxmium number of chunks a single association can have on it. Note that 587 * this is a squishy number since the count can run over this if the user 588 * sends a large message down .. the fragmented chunks don't count until 589 * AFTER the message is on queue.. it would be the next send that blocks 590 * things. This number will get tuned up at boot in the sctp_init and use the 591 * number of clusters as a base. This way high bandwidth environments will 592 * not get impacted by the lower bandwidth sending a bunch of 1 byte chunks 593 */ 594 #ifdef __Panda__ 595 #define SCTP_ASOC_MAX_CHUNKS_ON_QUEUE 10240 596 #else 597 #define SCTP_ASOC_MAX_CHUNKS_ON_QUEUE 512 598 #endif 599 600 601 /* The conversion from time to ticks and vice versa is done by rounding 602 * upwards. This way we can test in the code the time to be positive and 603 * know that this corresponds to a positive number of ticks. 604 */ 605 #define MSEC_TO_TICKS(x) ((hz == 1000) ? x : ((((x) * hz) + 999) / 1000)) 606 #define TICKS_TO_MSEC(x) ((hz == 1000) ? x : ((((x) * 1000) + (hz - 1)) / hz)) 607 608 #define SEC_TO_TICKS(x) ((x) * hz) 609 #define TICKS_TO_SEC(x) (((x) + (hz - 1)) / hz) 610 611 /* 612 * Basically the minimum amount of time before I do a early FR. Making this 613 * value to low will cause duplicate retransmissions. 614 */ 615 #define SCTP_MINFR_MSEC_TIMER 250 616 /* The floor this value is allowed to fall to when starting a timer. */ 617 #define SCTP_MINFR_MSEC_FLOOR 20 618 619 /* init timer def = 1 sec */ 620 #define SCTP_INIT_SEC 1 621 622 /* send timer def = 1 seconds */ 623 #define SCTP_SEND_SEC 1 624 625 /* recv timer def = 200ms */ 626 #define SCTP_RECV_MSEC 200 627 628 /* 30 seconds + RTO (in ms) */ 629 #define SCTP_HB_DEFAULT_MSEC 30000 630 631 /* Max time I will wait for Shutdown to complete */ 632 #define SCTP_DEF_MAX_SHUTDOWN_SEC 180 633 634 635 /* 636 * This is how long a secret lives, NOT how long a cookie lives how many 637 * ticks the current secret will live. 638 */ 639 #define SCTP_DEFAULT_SECRET_LIFE_SEC 3600 640 641 #define SCTP_RTO_UPPER_BOUND (60000) /* 60 sec in ms */ 642 #define SCTP_RTO_LOWER_BOUND (1000) /* 1 sec is ms */ 643 #define SCTP_RTO_INITIAL (3000) /* 3 sec in ms */ 644 645 646 #define SCTP_INP_KILL_TIMEOUT 20 /* number of ms to retry kill of inpcb */ 647 #define SCTP_ASOC_KILL_TIMEOUT 10 /* number of ms to retry kill of inpcb */ 648 649 #define SCTP_DEF_MAX_INIT 8 650 #define SCTP_DEF_MAX_SEND 10 651 #define SCTP_DEF_MAX_PATH_RTX 5 652 #define SCTP_DEF_PATH_PF_THRESHOLD SCTP_DEF_MAX_PATH_RTX 653 654 #define SCTP_DEF_PMTU_RAISE_SEC 600 /* 10 min between raise attempts */ 655 656 657 /* How many streams I request initally by default */ 658 #define SCTP_OSTREAM_INITIAL 10 659 #define SCTP_ISTREAM_INITIAL 2048 660 661 /* 662 * How many smallest_mtu's need to increase before a window update sack is 663 * sent (should be a power of 2). 664 */ 665 /* Send window update (incr * this > hiwat). Should be a power of 2 */ 666 #define SCTP_MINIMAL_RWND (4096) /* minimal rwnd */ 667 668 #define SCTP_ADDRMAX 16 669 670 /* SCTP DEBUG Switch parameters */ 671 #define SCTP_DEBUG_TIMER1 0x00000001 672 #define SCTP_DEBUG_TIMER2 0x00000002 /* unused */ 673 #define SCTP_DEBUG_TIMER3 0x00000004 /* unused */ 674 #define SCTP_DEBUG_TIMER4 0x00000008 675 #define SCTP_DEBUG_OUTPUT1 0x00000010 676 #define SCTP_DEBUG_OUTPUT2 0x00000020 677 #define SCTP_DEBUG_OUTPUT3 0x00000040 678 #define SCTP_DEBUG_OUTPUT4 0x00000080 679 #define SCTP_DEBUG_UTIL1 0x00000100 680 #define SCTP_DEBUG_UTIL2 0x00000200 /* unused */ 681 #define SCTP_DEBUG_AUTH1 0x00000400 682 #define SCTP_DEBUG_AUTH2 0x00000800 /* unused */ 683 #define SCTP_DEBUG_INPUT1 0x00001000 684 #define SCTP_DEBUG_INPUT2 0x00002000 685 #define SCTP_DEBUG_INPUT3 0x00004000 686 #define SCTP_DEBUG_INPUT4 0x00008000 /* unused */ 687 #define SCTP_DEBUG_ASCONF1 0x00010000 688 #define SCTP_DEBUG_ASCONF2 0x00020000 689 #define SCTP_DEBUG_OUTPUT5 0x00040000 /* unused */ 690 #define SCTP_DEBUG_XXX 0x00080000 /* unused */ 691 #define SCTP_DEBUG_PCB1 0x00100000 692 #define SCTP_DEBUG_PCB2 0x00200000 /* unused */ 693 #define SCTP_DEBUG_PCB3 0x00400000 694 #define SCTP_DEBUG_PCB4 0x00800000 695 #define SCTP_DEBUG_INDATA1 0x01000000 696 #define SCTP_DEBUG_INDATA2 0x02000000 /* unused */ 697 #define SCTP_DEBUG_INDATA3 0x04000000 /* unused */ 698 #define SCTP_DEBUG_CRCOFFLOAD 0x08000000 /* unused */ 699 #define SCTP_DEBUG_USRREQ1 0x10000000 /* unused */ 700 #define SCTP_DEBUG_USRREQ2 0x20000000 /* unused */ 701 #define SCTP_DEBUG_PEEL1 0x40000000 702 #if defined(__Userspace__) 703 #define SCTP_DEBUG_USR 0x80000000 704 #else 705 #define SCTP_DEBUG_XXXXX 0x80000000 /* unused */ 706 #endif 707 #define SCTP_DEBUG_ALL 0x7ff3ffff 708 #define SCTP_DEBUG_NOISY 0x00040000 709 710 /* What sender needs to see to avoid SWS or we consider peers rwnd 0 */ 711 #define SCTP_SWS_SENDER_DEF 1420 712 713 /* 714 * SWS is scaled to the sb_hiwat of the socket. A value of 2 is hiwat/4, 1 715 * would be hiwat/2 etc. 716 */ 717 /* What receiver needs to see in sockbuf or we tell peer its 1 */ 718 #define SCTP_SWS_RECEIVER_DEF 3000 719 720 #define SCTP_INITIAL_CWND 4380 721 722 #define SCTP_DEFAULT_MTU 1500 /* emergency default MTU */ 723 /* amount peer is obligated to have in rwnd or I will abort */ 724 #define SCTP_MIN_RWND 1500 725 726 #define SCTP_DEFAULT_MAXSEGMENT 65535 727 728 #define SCTP_CHUNK_BUFFER_SIZE 512 729 #define SCTP_PARAM_BUFFER_SIZE 512 730 731 /* small chunk store for looking at chunk_list in auth */ 732 #define SCTP_SMALL_CHUNK_STORE 260 733 734 #define SCTP_HOW_MANY_SECRETS 2 /* how many secrets I keep */ 735 736 #define SCTP_NUMBER_OF_SECRETS 8 /* or 8 * 4 = 32 octets */ 737 #define SCTP_SECRET_SIZE 32 /* number of octets in a 256 bits */ 738 739 740 /* 741 * SCTP upper layer notifications 742 */ 743 #define SCTP_NOTIFY_ASSOC_UP 1 744 #define SCTP_NOTIFY_ASSOC_DOWN 2 745 #define SCTP_NOTIFY_INTERFACE_DOWN 3 746 #define SCTP_NOTIFY_INTERFACE_UP 4 747 #define SCTP_NOTIFY_SENT_DG_FAIL 5 748 #define SCTP_NOTIFY_UNSENT_DG_FAIL 6 749 #define SCTP_NOTIFY_SPECIAL_SP_FAIL 7 750 #define SCTP_NOTIFY_ASSOC_LOC_ABORTED 8 751 #define SCTP_NOTIFY_ASSOC_REM_ABORTED 9 752 #define SCTP_NOTIFY_ASSOC_RESTART 10 753 #define SCTP_NOTIFY_PEER_SHUTDOWN 11 754 #define SCTP_NOTIFY_ASCONF_ADD_IP 12 755 #define SCTP_NOTIFY_ASCONF_DELETE_IP 13 756 #define SCTP_NOTIFY_ASCONF_SET_PRIMARY 14 757 #define SCTP_NOTIFY_PARTIAL_DELVIERY_INDICATION 15 758 #define SCTP_NOTIFY_INTERFACE_CONFIRMED 16 759 #define SCTP_NOTIFY_STR_RESET_RECV 17 760 #define SCTP_NOTIFY_STR_RESET_SEND 18 761 #define SCTP_NOTIFY_STR_RESET_FAILED_OUT 19 762 #define SCTP_NOTIFY_STR_RESET_FAILED_IN 20 763 #define SCTP_NOTIFY_STR_RESET_DENIED_OUT 21 764 #define SCTP_NOTIFY_STR_RESET_DENIED_IN 22 765 #define SCTP_NOTIFY_AUTH_NEW_KEY 23 766 #define SCTP_NOTIFY_AUTH_FREE_KEY 24 767 #define SCTP_NOTIFY_NO_PEER_AUTH 25 768 #define SCTP_NOTIFY_SENDER_DRY 26 769 #define SCTP_NOTIFY_REMOTE_ERROR 27 770 771 /* This is the value for messages that are NOT completely 772 * copied down where we will start to split the message. 773 * So, with our default, we split only if the piece we 774 * want to take will fill up a full MTU (assuming 775 * a 1500 byte MTU). 776 */ 777 #define SCTP_DEFAULT_SPLIT_POINT_MIN 2904 778 779 /* Maximum length of diagnostic information in error causes */ 780 #define SCTP_DIAG_INFO_LEN 64 781 782 /* ABORT CODES and other tell-tale location 783 * codes are generated by adding the below 784 * to the instance id. 785 */ 786 787 /* File defines */ 788 #define SCTP_FROM_SCTP_INPUT 0x10000000 789 #define SCTP_FROM_SCTP_PCB 0x20000000 790 #define SCTP_FROM_SCTP_INDATA 0x30000000 791 #define SCTP_FROM_SCTP_TIMER 0x40000000 792 #define SCTP_FROM_SCTP_USRREQ 0x50000000 793 #define SCTP_FROM_SCTPUTIL 0x60000000 794 #define SCTP_FROM_SCTP6_USRREQ 0x70000000 795 #define SCTP_FROM_SCTP_ASCONF 0x80000000 796 #define SCTP_FROM_SCTP_OUTPUT 0x90000000 797 #define SCTP_FROM_SCTP_PEELOFF 0xa0000000 798 #define SCTP_FROM_SCTP_PANDA 0xb0000000 799 #define SCTP_FROM_SCTP_SYSCTL 0xc0000000 800 801 /* Location ID's */ 802 #define SCTP_LOC_1 0x00000001 803 #define SCTP_LOC_2 0x00000002 804 #define SCTP_LOC_3 0x00000003 805 #define SCTP_LOC_4 0x00000004 806 #define SCTP_LOC_5 0x00000005 807 #define SCTP_LOC_6 0x00000006 808 #define SCTP_LOC_7 0x00000007 809 #define SCTP_LOC_8 0x00000008 810 #define SCTP_LOC_9 0x00000009 811 #define SCTP_LOC_10 0x0000000a 812 #define SCTP_LOC_11 0x0000000b 813 #define SCTP_LOC_12 0x0000000c 814 #define SCTP_LOC_13 0x0000000d 815 #define SCTP_LOC_14 0x0000000e 816 #define SCTP_LOC_15 0x0000000f 817 #define SCTP_LOC_16 0x00000010 818 #define SCTP_LOC_17 0x00000011 819 #define SCTP_LOC_18 0x00000012 820 #define SCTP_LOC_19 0x00000013 821 #define SCTP_LOC_20 0x00000014 822 #define SCTP_LOC_21 0x00000015 823 #define SCTP_LOC_22 0x00000016 824 #define SCTP_LOC_23 0x00000017 825 #define SCTP_LOC_24 0x00000018 826 #define SCTP_LOC_25 0x00000019 827 #define SCTP_LOC_26 0x0000001a 828 #define SCTP_LOC_27 0x0000001b 829 #define SCTP_LOC_28 0x0000001c 830 #define SCTP_LOC_29 0x0000001d 831 #define SCTP_LOC_30 0x0000001e 832 #define SCTP_LOC_31 0x0000001f 833 #define SCTP_LOC_32 0x00000020 834 #define SCTP_LOC_33 0x00000021 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_SSN_GT(a, b) (((a < b) && ((uint16_t)(b - a) > (1U<<15))) || \ 912 ((a > b) && ((uint16_t)(a - b) < (1U<<15)))) 913 #define SCTP_SSN_GE(a, b) (SCTP_SSN_GT(a, b) || (a == b)) 914 #define SCTP_TSN_GT(a, b) (((a < b) && ((uint32_t)(b - a) > (1U<<31))) || \ 915 ((a > b) && ((uint32_t)(a - b) < (1U<<31)))) 916 #define SCTP_TSN_GE(a, b) (SCTP_TSN_GT(a, b) || (a == b)) 917 918 /* Mapping array manipulation routines */ 919 #define SCTP_IS_TSN_PRESENT(arry, gap) ((arry[(gap >> 3)] >> (gap & 0x07)) & 0x01) 920 #define SCTP_SET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] |= (0x01 << ((gap & 0x07)))) 921 #define SCTP_UNSET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] &= ((~(0x01 << ((gap & 0x07)))) & 0xff)) 922 #define SCTP_CALC_TSN_TO_GAP(gap, tsn, mapping_tsn) do { \ 923 if (tsn >= mapping_tsn) { \ 924 gap = tsn - mapping_tsn; \ 925 } else { \ 926 gap = (MAX_TSN - mapping_tsn) + tsn + 1; \ 927 } \ 928 } while (0) 929 930 931 #define SCTP_RETRAN_DONE -1 932 #define SCTP_RETRAN_EXIT -2 933 934 /* 935 * This value defines the number of vtag block time wait entry's per list 936 * element. Each entry will take 2 4 byte ints (and of course the overhead 937 * of the next pointer as well). Using 15 as an example will yield * ((8 * 938 * 15) + 8) or 128 bytes of overhead for each timewait block that gets 939 * initialized. Increasing it to 31 would yeild 256 bytes per block. 940 */ 941 #define SCTP_NUMBER_IN_VTAG_BLOCK 15 942 /* 943 * If we use the STACK option, we have an array of this size head pointers. 944 * This array is mod'd the with the size to find which bucket and then all 945 * entries must be searched to see if the tag is in timed wait. If so we 946 * reject it. 947 */ 948 #define SCTP_STACK_VTAG_HASH_SIZE 32 949 950 /* 951 * Number of seconds of time wait for a vtag. 952 */ 953 #define SCTP_TIME_WAIT 60 954 955 /* How many micro seconds is the cutoff from 956 * local lan type rtt's 957 */ 958 /* 959 * We allow 900us for the rtt. 960 */ 961 #define SCTP_LOCAL_LAN_RTT 900 962 #define SCTP_LAN_UNKNOWN 0 963 #define SCTP_LAN_LOCAL 1 964 #define SCTP_LAN_INTERNET 2 965 966 #define SCTP_SEND_BUFFER_SPLITTING 0x00000001 967 #define SCTP_RECV_BUFFER_SPLITTING 0x00000002 968 969 /* The system retains a cache of free chunks such to 970 * cut down on calls the memory allocation system. There 971 * is a per association limit of free items and a overall 972 * system limit. If either one gets hit then the resource 973 * stops being cached. 974 */ 975 976 #define SCTP_DEF_ASOC_RESC_LIMIT 10 977 #define SCTP_DEF_SYSTEM_RESC_LIMIT 1000 978 979 /*- 980 * defines for socket lock states. 981 * Used by __APPLE__ and SCTP_SO_LOCK_TESTING 982 */ 983 #define SCTP_SO_LOCKED 1 984 #define SCTP_SO_NOT_LOCKED 0 985 986 987 #define SCTP_HOLDS_LOCK 1 988 #define SCTP_NOT_LOCKED 0 989 990 /*- 991 * For address locks, do we hold the lock? 992 */ 993 #define SCTP_ADDR_LOCKED 1 994 #define SCTP_ADDR_NOT_LOCKED 0 995 996 #define IN4_ISPRIVATE_ADDRESS(a) \ 997 ((((uint8_t *)&(a)->s_addr)[0] == 10) || \ 998 ((((uint8_t *)&(a)->s_addr)[0] == 172) && \ 999 (((uint8_t *)&(a)->s_addr)[1] >= 16) && \ 1000 (((uint8_t *)&(a)->s_addr)[1] <= 32)) || \ 1001 ((((uint8_t *)&(a)->s_addr)[0] == 192) && \ 1002 (((uint8_t *)&(a)->s_addr)[1] == 168))) 1003 1004 #define IN4_ISLOOPBACK_ADDRESS(a) \ 1005 ((((uint8_t *)&(a)->s_addr)[0] == 127) && \ 1006 (((uint8_t *)&(a)->s_addr)[1] == 0) && \ 1007 (((uint8_t *)&(a)->s_addr)[2] == 0) && \ 1008 (((uint8_t *)&(a)->s_addr)[3] == 1)) 1009 1010 #define IN4_ISLINKLOCAL_ADDRESS(a) \ 1011 ((((uint8_t *)&(a)->s_addr)[0] == 169) && \ 1012 (((uint8_t *)&(a)->s_addr)[1] == 254)) 1013 1014 #if defined(__Userspace__) 1015 #if defined(__Userspace_os_Windows) 1016 #define SCTP_GETTIME_TIMEVAL(x) getwintimeofday(x) 1017 #define SCTP_GETPTIME_TIMEVAL(x) getwintimeofday(x) /* this doesn't seem to ever be used.. */ 1018 #else 1019 #define SCTP_GETTIME_TIMEVAL(x) gettimeofday(x, NULL) 1020 #define SCTP_GETPTIME_TIMEVAL(x) gettimeofday(x, NULL) 1021 #endif 1022 #endif 1023 1024 #if defined(_KERNEL) 1025 #define SCTP_GETTIME_TIMEVAL(x) (getmicrouptime(x)) 1026 #define SCTP_GETPTIME_TIMEVAL(x) (microuptime(x)) 1027 #endif 1028 1029 #if defined(_KERNEL) || defined(__Userspace__) 1030 #define sctp_sowwakeup(inp, so) \ 1031 do { \ 1032 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1033 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \ 1034 } else { \ 1035 sowwakeup(so); \ 1036 } \ 1037 } while (0) 1038 1039 #if defined(__FreeBSD__) || defined(__Windows__) || defined(__Userspace__) 1040 #define sctp_sowwakeup_locked(inp, so) \ 1041 do { \ 1042 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1043 SOCKBUF_UNLOCK(&((so)->so_snd)); \ 1044 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \ 1045 } else { \ 1046 sowwakeup_locked(so); \ 1047 } \ 1048 } while (0) 1049 #else 1050 #define sctp_sowwakeup_locked(inp, so) \ 1051 do { \ 1052 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1053 SOCKBUF_UNLOCK(&((so)->so_snd)); \ 1054 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \ 1055 } else { \ 1056 sowwakeup(so); \ 1057 } \ 1058 } while (0) 1059 #endif 1060 1061 #define sctp_sorwakeup(inp, so) \ 1062 do { \ 1063 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1064 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \ 1065 } else { \ 1066 sorwakeup(so); \ 1067 } \ 1068 } while (0) 1069 1070 #if defined(__FreeBSD__) || defined(__Windows__) || defined(__Userspace__) 1071 #define sctp_sorwakeup_locked(inp, so) \ 1072 do { \ 1073 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1074 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \ 1075 SOCKBUF_UNLOCK(&((so)->so_rcv)); \ 1076 } else { \ 1077 sorwakeup_locked(so); \ 1078 } \ 1079 } while (0) 1080 #else 1081 1082 #define sctp_sorwakeup_locked(inp, so) \ 1083 do { \ 1084 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1085 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \ 1086 SOCKBUF_UNLOCK(&((so)->so_rcv)); \ 1087 } else { \ 1088 sorwakeup(so); \ 1089 } \ 1090 } while (0) 1091 #endif 1092 1093 #endif /* _KERNEL || __Userspace__*/ 1094 #endif 1095
