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 #ifndef _NETINET_SCTP_CONSTANTS_H_ 36 #define _NETINET_SCTP_CONSTANTS_H_ 37 38 /* IANA assigned port number for SCTP over UDP encapsulation */ 39 #define SCTP_OVER_UDP_TUNNELING_PORT 9899 40 41 /* Number of packets to get before sack sent by default */ 42 #define SCTP_DEFAULT_SACK_FREQ 2 43 44 /* Address limit - This variable is calculated 45 * based on an 65535 byte max ip packet. We take out 100 bytes 46 * for the cookie, 40 bytes for a v6 header and 32 47 * bytes for the init structure. A second init structure 48 * for the init-ack and then finally a third one for the 49 * imbedded init. This yeilds 100+40+(3 * 32) = 236 bytes. 50 * This leaves 65299 bytes for addresses. We throw out the 299 bytes. 51 * Now whatever we send in the INIT() we need to allow to get back in the 52 * INIT-ACK plus all the values from INIT and INIT-ACK 53 * listed in the cookie. Plus we need some overhead for 54 * maybe copied parameters in the COOKIE. If we 55 * allow 1080 addresses, and each side has 1080 V6 addresses 56 * that will be 21600 bytes. In the INIT-ACK we will 57 * see the INIT-ACK 21600 + 43200 in the cookie. This leaves 58 * about 500 bytes slack for misc things in the cookie. 59 */ 60 #define SCTP_ADDRESS_LIMIT 1080 61 62 /* We need at least 2k of space for us, inits 63 * larger than that lets abort. 64 */ 65 #define SCTP_LARGEST_INIT_ACCEPTED (65535 - 2048) 66 67 /* Largest length of a chunk */ 68 #define SCTP_MAX_CHUNK_LENGTH 0xffff 69 /* Largest length of an error cause */ 70 #define SCTP_MAX_CAUSE_LENGTH 0xffff 71 /* Number of addresses where we just skip the counting */ 72 #define SCTP_COUNT_LIMIT 40 73 74 #define SCTP_ZERO_COPY_TICK_DELAY (((100 * hz) + 999) / 1000) 75 #define SCTP_ZERO_COPY_SENDQ_TICK_DELAY (((100 * hz) + 999) / 1000) 76 77 /* Number of ticks to delay before running 78 * iterator on an address change. 79 */ 80 #define SCTP_ADDRESS_TICK_DELAY 2 81 82 #define SCTP_VERSION_STRING "KAME-BSD 1.1" 83 /* #define SCTP_AUDITING_ENABLED 1 used for debug/auditing */ 84 #define SCTP_AUDIT_SIZE 256 85 86 #define SCTP_KTRHEAD_NAME "sctp_iterator" 87 #define SCTP_KTHREAD_PAGES 0 88 89 #define SCTP_MCORE_NAME "sctp_core_worker" 90 91 /* If you support Multi-VRF how big to 92 * make the initial array of VRF's to. 93 */ 94 #define SCTP_DEFAULT_VRF_SIZE 4 95 96 /* JRS - Values defined for the HTCP algorithm */ 97 #define ALPHA_BASE (1<<7) /* 1.0 with shift << 7 */ 98 #define BETA_MIN (1<<6) /* 0.5 with shift << 7 */ 99 #define BETA_MAX 102 /* 0.8 with shift << 7 */ 100 101 /* Places that CWND log can happen from */ 102 #define SCTP_CWND_LOG_FROM_FR 1 103 #define SCTP_CWND_LOG_FROM_RTX 2 104 #define SCTP_CWND_LOG_FROM_BRST 3 105 #define SCTP_CWND_LOG_FROM_SS 4 106 #define SCTP_CWND_LOG_FROM_CA 5 107 #define SCTP_CWND_LOG_FROM_SAT 6 108 #define SCTP_BLOCK_LOG_INTO_BLK 7 109 #define SCTP_BLOCK_LOG_OUTOF_BLK 8 110 #define SCTP_BLOCK_LOG_CHECK 9 111 #define SCTP_STR_LOG_FROM_INTO_STRD 10 112 #define SCTP_STR_LOG_FROM_IMMED_DEL 11 113 #define SCTP_STR_LOG_FROM_INSERT_HD 12 114 #define SCTP_STR_LOG_FROM_INSERT_MD 13 115 #define SCTP_STR_LOG_FROM_INSERT_TL 14 116 #define SCTP_STR_LOG_FROM_MARK_TSN 15 117 #define SCTP_STR_LOG_FROM_EXPRS_DEL 16 118 #define SCTP_FR_LOG_BIGGEST_TSNS 17 119 #define SCTP_FR_LOG_STRIKE_TEST 18 120 #define SCTP_FR_LOG_STRIKE_CHUNK 19 121 #define SCTP_FR_T3_TIMEOUT 20 122 #define SCTP_MAP_PREPARE_SLIDE 21 123 #define SCTP_MAP_SLIDE_FROM 22 124 #define SCTP_MAP_SLIDE_RESULT 23 125 #define SCTP_MAP_SLIDE_CLEARED 24 126 #define SCTP_MAP_SLIDE_NONE 25 127 #define SCTP_FR_T3_MARK_TIME 26 128 #define SCTP_FR_T3_MARKED 27 129 #define SCTP_FR_T3_STOPPED 28 130 #define SCTP_FR_MARKED 30 131 #define SCTP_CWND_LOG_NOADV_SS 31 132 #define SCTP_CWND_LOG_NOADV_CA 32 133 #define SCTP_MAX_BURST_APPLIED 33 134 #define SCTP_MAX_IFP_APPLIED 34 135 #define SCTP_MAX_BURST_ERROR_STOP 35 136 #define SCTP_INCREASE_PEER_RWND 36 137 #define SCTP_DECREASE_PEER_RWND 37 138 #define SCTP_SET_PEER_RWND_VIA_SACK 38 139 #define SCTP_LOG_MBCNT_INCREASE 39 140 #define SCTP_LOG_MBCNT_DECREASE 40 141 #define SCTP_LOG_MBCNT_CHKSET 41 142 #define SCTP_LOG_NEW_SACK 42 143 #define SCTP_LOG_TSN_ACKED 43 144 #define SCTP_LOG_TSN_REVOKED 44 145 #define SCTP_LOG_LOCK_TCB 45 146 #define SCTP_LOG_LOCK_INP 46 147 #define SCTP_LOG_LOCK_SOCK 47 148 #define SCTP_LOG_LOCK_SOCKBUF_R 48 149 #define SCTP_LOG_LOCK_SOCKBUF_S 49 150 #define SCTP_LOG_LOCK_CREATE 50 151 #define SCTP_LOG_INITIAL_RTT 51 152 #define SCTP_LOG_RTTVAR 52 153 #define SCTP_LOG_SBALLOC 53 154 #define SCTP_LOG_SBFREE 54 155 #define SCTP_LOG_SBRESULT 55 156 #define SCTP_FR_DUPED 56 157 #define SCTP_FR_MARKED_EARLY 57 158 #define SCTP_FR_CWND_REPORT 58 159 #define SCTP_FR_CWND_REPORT_START 59 160 #define SCTP_FR_CWND_REPORT_STOP 60 161 #define SCTP_CWND_LOG_FROM_SEND 61 162 #define SCTP_CWND_INITIALIZATION 62 163 #define SCTP_CWND_LOG_FROM_T3 63 164 #define SCTP_CWND_LOG_FROM_SACK 64 165 #define SCTP_CWND_LOG_NO_CUMACK 65 166 #define SCTP_CWND_LOG_FROM_RESEND 66 167 #define SCTP_FR_LOG_CHECK_STRIKE 67 168 #define SCTP_SEND_NOW_COMPLETES 68 169 #define SCTP_CWND_LOG_FILL_OUTQ_CALLED 69 170 #define SCTP_CWND_LOG_FILL_OUTQ_FILLS 70 171 #define SCTP_LOG_FREE_SENT 71 172 #define SCTP_NAGLE_APPLIED 72 173 #define SCTP_NAGLE_SKIPPED 73 174 #define SCTP_WAKESND_FROM_SACK 74 175 #define SCTP_WAKESND_FROM_FWDTSN 75 176 #define SCTP_NOWAKE_FROM_SACK 76 177 #define SCTP_CWNDLOG_PRESEND 77 178 #define SCTP_CWNDLOG_ENDSEND 78 179 #define SCTP_AT_END_OF_SACK 79 180 #define SCTP_REASON_FOR_SC 80 181 #define SCTP_BLOCK_LOG_INTO_BLKA 81 182 #define SCTP_ENTER_USER_RECV 82 183 #define SCTP_USER_RECV_SACKS 83 184 #define SCTP_SORECV_BLOCKSA 84 185 #define SCTP_SORECV_BLOCKSB 85 186 #define SCTP_SORECV_DONE 86 187 #define SCTP_SACK_RWND_UPDATE 87 188 #define SCTP_SORECV_ENTER 88 189 #define SCTP_SORECV_ENTERPL 89 190 #define SCTP_MBUF_INPUT 90 191 #define SCTP_MBUF_IALLOC 91 192 #define SCTP_MBUF_IFREE 92 193 #define SCTP_MBUF_ICOPY 93 194 #define SCTP_MBUF_SPLIT 94 195 #define SCTP_SORCV_FREECTL 95 196 #define SCTP_SORCV_DOESCPY 96 197 #define SCTP_SORCV_DOESLCK 97 198 #define SCTP_SORCV_DOESADJ 98 199 #define SCTP_SORCV_BOTWHILE 99 200 #define SCTP_SORCV_PASSBF 100 201 #define SCTP_SORCV_ADJD 101 202 #define SCTP_UNKNOWN_MAX 102 203 #define SCTP_RANDY_STUFF 103 204 #define SCTP_RANDY_STUFF1 104 205 #define SCTP_STRMOUT_LOG_ASSIGN 105 206 #define SCTP_STRMOUT_LOG_SEND 106 207 #define SCTP_FLIGHT_LOG_DOWN_CA 107 208 #define SCTP_FLIGHT_LOG_UP 108 209 #define SCTP_FLIGHT_LOG_DOWN_GAP 109 210 #define SCTP_FLIGHT_LOG_DOWN_RSND 110 211 #define SCTP_FLIGHT_LOG_UP_RSND 111 212 #define SCTP_FLIGHT_LOG_DOWN_RSND_TO 112 213 #define SCTP_FLIGHT_LOG_DOWN_WP 113 214 #define SCTP_FLIGHT_LOG_UP_REVOKE 114 215 #define SCTP_FLIGHT_LOG_DOWN_PDRP 115 216 #define SCTP_FLIGHT_LOG_DOWN_PMTU 116 217 #define SCTP_SACK_LOG_NORMAL 117 218 #define SCTP_SACK_LOG_EXPRESS 118 219 #define SCTP_MAP_TSN_ENTERS 119 220 #define SCTP_THRESHOLD_CLEAR 120 221 #define SCTP_THRESHOLD_INCR 121 222 #define SCTP_FLIGHT_LOG_DWN_WP_FWD 122 223 #define SCTP_FWD_TSN_CHECK 123 224 #define SCTP_LOG_MAX_TYPES 124 225 /* 226 * To turn on various logging, you must first enable 'options KTR' and 227 * you might want to bump the entires 'options KTR_ENTRIES=80000'. 228 * To get something to log you define one of the logging defines. 229 * (see LINT). 230 * 231 * This gets the compile in place, but you still need to turn the 232 * logging flag on too in the sysctl (see in sctp.h). 233 */ 234 235 #define SCTP_LOG_EVENT_UNKNOWN 0 236 #define SCTP_LOG_EVENT_CWND 1 237 #define SCTP_LOG_EVENT_BLOCK 2 238 #define SCTP_LOG_EVENT_STRM 3 239 #define SCTP_LOG_EVENT_FR 4 240 #define SCTP_LOG_EVENT_MAP 5 241 #define SCTP_LOG_EVENT_MAXBURST 6 242 #define SCTP_LOG_EVENT_RWND 7 243 #define SCTP_LOG_EVENT_MBCNT 8 244 #define SCTP_LOG_EVENT_SACK 9 245 #define SCTP_LOG_LOCK_EVENT 10 246 #define SCTP_LOG_EVENT_RTT 11 247 #define SCTP_LOG_EVENT_SB 12 248 #define SCTP_LOG_EVENT_NAGLE 13 249 #define SCTP_LOG_EVENT_WAKE 14 250 #define SCTP_LOG_MISC_EVENT 15 251 #define SCTP_LOG_EVENT_CLOSE 16 252 #define SCTP_LOG_EVENT_MBUF 17 253 #define SCTP_LOG_CHUNK_PROC 18 254 #define SCTP_LOG_ERROR_RET 19 255 256 #define SCTP_LOG_MAX_EVENT 20 257 258 #define SCTP_LOCK_UNKNOWN 2 259 260 /* number of associations by default for zone allocation */ 261 #define SCTP_MAX_NUM_OF_ASOC 40000 262 /* how many addresses per assoc remote and local */ 263 #define SCTP_SCALE_FOR_ADDR 2 264 265 /* default MULTIPLE_ASCONF mode enable(1)/disable(0) value (sysctl) */ 266 #define SCTP_DEFAULT_MULTIPLE_ASCONFS 0 267 268 /* 269 * Threshold for rwnd updates, we have to read (sb_hiwat >> 270 * SCTP_RWND_HIWAT_SHIFT) before we will look to see if we need to send a 271 * window update sack. When we look, we compare the last rwnd we sent vs the 272 * current rwnd. It too must be greater than this value. Using 3 divdes the 273 * hiwat by 8, so for 200k rwnd we need to read 24k. For a 64k rwnd we need 274 * to read 8k. This seems about right.. I hope :-D.. we do set a 275 * min of a MTU on it so if the rwnd is real small we will insist 276 * on a full MTU of 1500 bytes. 277 */ 278 #define SCTP_RWND_HIWAT_SHIFT 3 279 280 /* How much of the rwnd must the 281 * message be taking up to start partial delivery. 282 * We calculate this by shifing the hi_water (recv_win) 283 * left the following .. set to 1, when a message holds 284 * 1/2 the rwnd. If we set it to 2 when a message holds 285 * 1/4 the rwnd...etc.. 286 */ 287 288 #define SCTP_PARTIAL_DELIVERY_SHIFT 1 289 290 /* 291 * default HMAC for cookies, etc... use one of the AUTH HMAC id's 292 * SCTP_HMAC is the HMAC_ID to use 293 * SCTP_SIGNATURE_SIZE is the digest length 294 */ 295 #define SCTP_HMAC SCTP_AUTH_HMAC_ID_SHA1 296 #define SCTP_SIGNATURE_SIZE SCTP_AUTH_DIGEST_LEN_SHA1 297 #define SCTP_SIGNATURE_ALOC_SIZE SCTP_SIGNATURE_SIZE 298 299 /* 300 * the SCTP protocol signature this includes the version number encoded in 301 * the last 4 bits of the signature. 302 */ 303 #define PROTO_SIGNATURE_A 0x30000000 304 #define SCTP_VERSION_NUMBER 0x3 305 306 #define MAX_TSN 0xffffffff 307 308 /* how many executions every N tick's */ 309 #define SCTP_ITERATOR_MAX_AT_ONCE 20 310 311 /* number of clock ticks between iterator executions */ 312 #define SCTP_ITERATOR_TICKS 1 313 314 /* 315 * option: If you comment out the following you will receive the old behavior 316 * of obeying cwnd for the fast retransmit algorithm. With this defined a FR 317 * happens right away with-out waiting for the flightsize to drop below the 318 * cwnd value (which is reduced by the FR to 1/2 the inflight packets). 319 */ 320 #define SCTP_IGNORE_CWND_ON_FR 1 321 322 /* 323 * Adds implementors guide behavior to only use newest highest update in SACK 324 * gap ack's to figure out if you need to stroke a chunk for FR. 325 */ 326 #define SCTP_NO_FR_UNLESS_SEGMENT_SMALLER 1 327 328 /* default max I can burst out after a fast retransmit, 0 disables it */ 329 #define SCTP_DEF_MAX_BURST 4 330 #define SCTP_DEF_HBMAX_BURST 4 331 #define SCTP_DEF_FRMAX_BURST 4 332 333 /* RTO calculation flag to say if it 334 * is safe to determine local lan or not. 335 */ 336 #define SCTP_RTT_FROM_NON_DATA 0 337 #define SCTP_RTT_FROM_DATA 1 338 339 #define PR_SCTP_UNORDERED_FLAG 0x0001 340 341 /* IP hdr (20/40) + 12+2+2 (enet) + sctp common 12 */ 342 #define SCTP_FIRST_MBUF_RESV 68 343 /* Packet transmit states in the sent field */ 344 #define SCTP_DATAGRAM_UNSENT 0 345 #define SCTP_DATAGRAM_SENT 1 346 #define SCTP_DATAGRAM_RESEND1 2 /* not used (in code, but may 347 * hit this value) */ 348 #define SCTP_DATAGRAM_RESEND2 3 /* not used (in code, but may 349 * hit this value) */ 350 #define SCTP_DATAGRAM_RESEND 4 351 #define SCTP_DATAGRAM_ACKED 10010 352 #define SCTP_DATAGRAM_MARKED 20010 353 #define SCTP_FORWARD_TSN_SKIP 30010 354 #define SCTP_DATAGRAM_NR_ACKED 40010 355 356 /* chunk output send from locations */ 357 #define SCTP_OUTPUT_FROM_USR_SEND 0 358 #define SCTP_OUTPUT_FROM_T3 1 359 #define SCTP_OUTPUT_FROM_INPUT_ERROR 2 360 #define SCTP_OUTPUT_FROM_CONTROL_PROC 3 361 #define SCTP_OUTPUT_FROM_SACK_TMR 4 362 #define SCTP_OUTPUT_FROM_SHUT_TMR 5 363 #define SCTP_OUTPUT_FROM_HB_TMR 6 364 #define SCTP_OUTPUT_FROM_SHUT_ACK_TMR 7 365 #define SCTP_OUTPUT_FROM_ASCONF_TMR 8 366 #define SCTP_OUTPUT_FROM_STRRST_TMR 9 367 #define SCTP_OUTPUT_FROM_AUTOCLOSE_TMR 10 368 #define SCTP_OUTPUT_FROM_EARLY_FR_TMR 11 369 #define SCTP_OUTPUT_FROM_STRRST_REQ 12 370 #define SCTP_OUTPUT_FROM_USR_RCVD 13 371 #define SCTP_OUTPUT_FROM_COOKIE_ACK 14 372 #define SCTP_OUTPUT_FROM_DRAIN 15 373 #define SCTP_OUTPUT_FROM_CLOSING 16 374 #define SCTP_OUTPUT_FROM_SOCKOPT 17 375 376 /* SCTP chunk types are moved sctp.h for application (NAT, FW) use */ 377 378 /* align to 32-bit sizes */ 379 #define SCTP_SIZE32(x) ((((x) + 3) >> 2) << 2) 380 381 #define IS_SCTP_CONTROL(a) (((a)->chunk_type != SCTP_DATA) && ((a)->chunk_type != SCTP_IDATA)) 382 #define IS_SCTP_DATA(a) (((a)->chunk_type == SCTP_DATA) || ((a)->chunk_type == SCTP_IDATA)) 383 384 /* SCTP parameter types */ 385 /*************0x0000 series*************/ 386 #define SCTP_HEARTBEAT_INFO 0x0001 387 #define SCTP_IPV4_ADDRESS 0x0005 388 #define SCTP_IPV6_ADDRESS 0x0006 389 #define SCTP_STATE_COOKIE 0x0007 390 #define SCTP_UNRECOG_PARAM 0x0008 391 #define SCTP_COOKIE_PRESERVE 0x0009 392 #define SCTP_HOSTNAME_ADDRESS 0x000b 393 #define SCTP_SUPPORTED_ADDRTYPE 0x000c 394 395 /* RFC 6525 */ 396 #define SCTP_STR_RESET_OUT_REQUEST 0x000d 397 #define SCTP_STR_RESET_IN_REQUEST 0x000e 398 #define SCTP_STR_RESET_TSN_REQUEST 0x000f 399 #define SCTP_STR_RESET_RESPONSE 0x0010 400 #define SCTP_STR_RESET_ADD_OUT_STREAMS 0x0011 401 #define SCTP_STR_RESET_ADD_IN_STREAMS 0x0012 402 403 #define SCTP_MAX_RESET_PARAMS 2 404 #define SCTP_STREAM_RESET_TSN_DELTA 0x1000 405 406 /*************0x4000 series*************/ 407 408 /*************0x8000 series*************/ 409 #define SCTP_ECN_CAPABLE 0x8000 410 #define SCTP_ZERO_CHECKSUM_ACCEPTABLE 0x8001 411 /* RFC 4895 */ 412 #define SCTP_RANDOM 0x8002 413 #define SCTP_CHUNK_LIST 0x8003 414 #define SCTP_HMAC_LIST 0x8004 415 /* RFC 4820 */ 416 #define SCTP_PAD 0x8005 417 /* RFC 5061 */ 418 #define SCTP_SUPPORTED_CHUNK_EXT 0x8008 419 420 /*************0xC000 series*************/ 421 #define SCTP_PRSCTP_SUPPORTED 0xc000 422 /* RFC 5061 */ 423 #define SCTP_ADD_IP_ADDRESS 0xc001 424 #define SCTP_DEL_IP_ADDRESS 0xc002 425 #define SCTP_ERROR_CAUSE_IND 0xc003 426 #define SCTP_SET_PRIM_ADDR 0xc004 427 #define SCTP_SUCCESS_REPORT 0xc005 428 #define SCTP_ULP_ADAPTATION 0xc006 429 /* behave-nat-draft */ 430 #define SCTP_HAS_NAT_SUPPORT 0xc007 431 #define SCTP_NAT_VTAGS 0xc008 432 433 /* bits for TOS field */ 434 #define SCTP_ECT0_BIT 0x02 435 #define SCTP_ECT1_BIT 0x01 436 #define SCTP_CE_BITS 0x03 437 438 /* below turns off above */ 439 #define SCTP_FLEXIBLE_ADDRESS 0x20 440 #define SCTP_NO_HEARTBEAT 0x40 441 442 /* mask to get sticky */ 443 #define SCTP_STICKY_OPTIONS_MASK 0x0c 444 445 /* 446 * SCTP states for internal state machine 447 */ 448 #define SCTP_STATE_EMPTY 0x0000 449 #define SCTP_STATE_INUSE 0x0001 450 #define SCTP_STATE_COOKIE_WAIT 0x0002 451 #define SCTP_STATE_COOKIE_ECHOED 0x0004 452 #define SCTP_STATE_OPEN 0x0008 453 #define SCTP_STATE_SHUTDOWN_SENT 0x0010 454 #define SCTP_STATE_SHUTDOWN_RECEIVED 0x0020 455 #define SCTP_STATE_SHUTDOWN_ACK_SENT 0x0040 456 #define SCTP_STATE_SHUTDOWN_PENDING 0x0080 457 #define SCTP_STATE_CLOSED_SOCKET 0x0100 458 #define SCTP_STATE_ABOUT_TO_BE_FREED 0x0200 459 #define SCTP_STATE_PARTIAL_MSG_LEFT 0x0400 460 #define SCTP_STATE_WAS_ABORTED 0x0800 461 #define SCTP_STATE_IN_ACCEPT_QUEUE 0x1000 462 #define SCTP_STATE_MASK 0x007f 463 464 #define SCTP_GET_STATE(_stcb) \ 465 ((_stcb)->asoc.state & SCTP_STATE_MASK) 466 #define SCTP_SET_STATE(_stcb, _state) \ 467 sctp_set_state(_stcb, _state) 468 #define SCTP_CLEAR_SUBSTATE(_stcb, _substate) \ 469 (_stcb)->asoc.state &= ~(_substate) 470 #define SCTP_ADD_SUBSTATE(_stcb, _substate) \ 471 sctp_add_substate(_stcb, _substate) 472 473 /* SCTP reachability state for each address */ 474 #define SCTP_ADDR_REACHABLE 0x001 475 #define SCTP_ADDR_NO_PMTUD 0x002 476 #define SCTP_ADDR_NOHB 0x004 477 #define SCTP_ADDR_BEING_DELETED 0x008 478 #define SCTP_ADDR_NOT_IN_ASSOC 0x010 479 #define SCTP_ADDR_OUT_OF_SCOPE 0x080 480 #define SCTP_ADDR_UNCONFIRMED 0x200 481 #define SCTP_ADDR_REQ_PRIMARY 0x400 482 /* JRS 5/13/07 - Added potentially failed state for CMT PF */ 483 #define SCTP_ADDR_PF 0x800 484 485 /* bound address types (e.g. valid address types to allow) */ 486 #define SCTP_BOUND_V6 0x01 487 #define SCTP_BOUND_V4 0x02 488 489 /* 490 * what is the default number of mbufs in a chain I allow before switching to 491 * a cluster 492 */ 493 #define SCTP_DEFAULT_MBUFS_IN_CHAIN 5 494 495 /* How long a cookie lives in milli-seconds */ 496 #define SCTP_DEFAULT_COOKIE_LIFE 60000 497 498 /* Maximum the mapping array will grow to (TSN mapping array) */ 499 #define SCTP_MAPPING_ARRAY 512 500 501 /* size of the initial malloc on the mapping array */ 502 #define SCTP_INITIAL_MAPPING_ARRAY 16 503 /* how much we grow the mapping array each call */ 504 #define SCTP_MAPPING_ARRAY_INCR 32 505 506 /* 507 * Here we define the timer types used by the implementation as arguments in 508 * the set/get timer type calls. 509 */ 510 #define SCTP_TIMER_INIT 0 511 #define SCTP_TIMER_RECV 1 512 #define SCTP_TIMER_SEND 2 513 #define SCTP_TIMER_HEARTBEAT 3 514 #define SCTP_TIMER_PMTU 4 515 #define SCTP_TIMER_MAXSHUTDOWN 5 516 #define SCTP_TIMER_SIGNATURE 6 517 /* 518 * number of timer types in the base SCTP structure used in the set/get and 519 * has the base default. 520 */ 521 #define SCTP_NUM_TMRS 7 522 523 /* timer types */ 524 #define SCTP_TIMER_TYPE_NONE 0 525 #define SCTP_TIMER_TYPE_SEND 1 526 #define SCTP_TIMER_TYPE_INIT 2 527 #define SCTP_TIMER_TYPE_RECV 3 528 #define SCTP_TIMER_TYPE_SHUTDOWN 4 529 #define SCTP_TIMER_TYPE_HEARTBEAT 5 530 #define SCTP_TIMER_TYPE_COOKIE 6 531 #define SCTP_TIMER_TYPE_NEWCOOKIE 7 532 #define SCTP_TIMER_TYPE_PATHMTURAISE 8 533 #define SCTP_TIMER_TYPE_SHUTDOWNACK 9 534 #define SCTP_TIMER_TYPE_ASCONF 10 535 #define SCTP_TIMER_TYPE_SHUTDOWNGUARD 11 536 #define SCTP_TIMER_TYPE_AUTOCLOSE 12 537 #define SCTP_TIMER_TYPE_STRRESET 13 538 #define SCTP_TIMER_TYPE_INPKILL 14 539 #define SCTP_TIMER_TYPE_ASOCKILL 15 540 #define SCTP_TIMER_TYPE_ADDR_WQ 16 541 #define SCTP_TIMER_TYPE_PRIM_DELETED 17 542 /* add new timers here - and increment LAST */ 543 #define SCTP_TIMER_TYPE_LAST 18 544 545 #define SCTP_IS_TIMER_TYPE_VALID(t) (((t) > SCTP_TIMER_TYPE_NONE) && \ 546 ((t) < SCTP_TIMER_TYPE_LAST)) 547 548 /* max number of TSN's dup'd that I will hold */ 549 #define SCTP_MAX_DUP_TSNS 20 550 551 /* 552 * Here we define the types used when setting the retry amounts. 553 */ 554 /* How many drop re-attempts we make on INIT/COOKIE-ECHO */ 555 #define SCTP_RETRY_DROPPED_THRESH 4 556 557 /* 558 * Maxmium number of chunks a single association can have on it. Note that 559 * this is a squishy number since the count can run over this if the user 560 * sends a large message down .. the fragmented chunks don't count until 561 * AFTER the message is on queue.. it would be the next send that blocks 562 * things. This number will get tuned up at boot in the sctp_init and use the 563 * number of clusters as a base. This way high bandwidth environments will 564 * not get impacted by the lower bandwidth sending a bunch of 1 byte chunks 565 */ 566 #define SCTP_ASOC_MAX_CHUNKS_ON_QUEUE 512 567 568 /* 569 * Basically the minimum amount of time before I do a early FR. Making this 570 * value to low will cause duplicate retransmissions. 571 */ 572 #define SCTP_MINFR_MSEC_TIMER 250 573 /* The floor this value is allowed to fall to when starting a timer. */ 574 #define SCTP_MINFR_MSEC_FLOOR 20 575 576 /* init timer def = 1 sec */ 577 #define SCTP_INIT_SEC 1 578 579 /* send timer def = 1 seconds */ 580 #define SCTP_SEND_SEC 1 581 582 /* recv timer def = 200ms */ 583 #define SCTP_RECV_MSEC 200 584 585 /* 30 seconds + RTO (in ms) */ 586 #define SCTP_HB_DEFAULT_MSEC 30000 587 588 /* 589 * This is how long a secret lives, NOT how long a cookie lives how many 590 * ticks the current secret will live. 591 */ 592 #define SCTP_DEFAULT_SECRET_LIFE_SEC 3600 593 594 #define SCTP_RTO_UPPER_BOUND (60000) /* 60 sec in ms */ 595 #define SCTP_RTO_LOWER_BOUND (1000) /* 1 sec is ms */ 596 #define SCTP_RTO_INITIAL (1000) /* 1 sec in ms */ 597 598 #define SCTP_INP_KILL_TIMEOUT 20 /* number of ms to retry kill of inpcb */ 599 #define SCTP_ASOC_KILL_TIMEOUT 10 /* number of ms to retry kill of inpcb */ 600 601 #define SCTP_DEF_MAX_INIT 8 602 #define SCTP_DEF_MAX_SEND 10 603 #define SCTP_DEF_MAX_PATH_RTX 5 604 #define SCTP_DEF_PATH_PF_THRESHOLD SCTP_DEF_MAX_PATH_RTX 605 606 #define SCTP_DEF_PMTU_RAISE_SEC 600 /* 10 min between raise attempts */ 607 608 /* How many streams I request initially by default */ 609 #define SCTP_OSTREAM_INITIAL 10 610 #define SCTP_ISTREAM_INITIAL 2048 611 612 /* 613 * How many smallest_mtu's need to increase before a window update sack is 614 * sent (should be a power of 2). 615 */ 616 /* Send window update (incr * this > hiwat). Should be a power of 2 */ 617 #define SCTP_MINIMAL_RWND (4096) /* minimal rwnd */ 618 619 #define SCTP_ADDRMAX 16 620 621 /* SCTP DEBUG Switch parameters */ 622 #define SCTP_DEBUG_TIMER1 0x00000001 623 #define SCTP_DEBUG_TIMER2 0x00000002 /* unused */ 624 #define SCTP_DEBUG_TIMER3 0x00000004 /* unused */ 625 #define SCTP_DEBUG_TIMER4 0x00000008 626 #define SCTP_DEBUG_OUTPUT1 0x00000010 627 #define SCTP_DEBUG_OUTPUT2 0x00000020 628 #define SCTP_DEBUG_OUTPUT3 0x00000040 629 #define SCTP_DEBUG_OUTPUT4 0x00000080 630 #define SCTP_DEBUG_UTIL1 0x00000100 631 #define SCTP_DEBUG_UTIL2 0x00000200 /* unused */ 632 #define SCTP_DEBUG_AUTH1 0x00000400 633 #define SCTP_DEBUG_AUTH2 0x00000800 /* unused */ 634 #define SCTP_DEBUG_INPUT1 0x00001000 635 #define SCTP_DEBUG_INPUT2 0x00002000 636 #define SCTP_DEBUG_INPUT3 0x00004000 637 #define SCTP_DEBUG_INPUT4 0x00008000 /* unused */ 638 #define SCTP_DEBUG_ASCONF1 0x00010000 639 #define SCTP_DEBUG_ASCONF2 0x00020000 640 #define SCTP_DEBUG_OUTPUT5 0x00040000 /* unused */ 641 #define SCTP_DEBUG_XXX 0x00080000 /* unused */ 642 #define SCTP_DEBUG_PCB1 0x00100000 643 #define SCTP_DEBUG_PCB2 0x00200000 /* unused */ 644 #define SCTP_DEBUG_PCB3 0x00400000 645 #define SCTP_DEBUG_PCB4 0x00800000 646 #define SCTP_DEBUG_INDATA1 0x01000000 647 #define SCTP_DEBUG_INDATA2 0x02000000 /* unused */ 648 #define SCTP_DEBUG_INDATA3 0x04000000 /* unused */ 649 #define SCTP_DEBUG_CRCOFFLOAD 0x08000000 /* unused */ 650 #define SCTP_DEBUG_USRREQ1 0x10000000 /* unused */ 651 #define SCTP_DEBUG_USRREQ2 0x20000000 /* unused */ 652 #define SCTP_DEBUG_PEEL1 0x40000000 653 #define SCTP_DEBUG_XXXXX 0x80000000 /* unused */ 654 #define SCTP_DEBUG_ALL 0x7ff3ffff 655 #define SCTP_DEBUG_NOISY 0x00040000 656 657 /* What sender needs to see to avoid SWS or we consider peers rwnd 0 */ 658 #define SCTP_SWS_SENDER_DEF 1420 659 660 /* 661 * SWS is scaled to the sb_hiwat of the socket. A value of 2 is hiwat/4, 1 662 * would be hiwat/2 etc. 663 */ 664 /* What receiver needs to see in sockbuf or we tell peer its 1 */ 665 #define SCTP_SWS_RECEIVER_DEF 3000 666 667 #define SCTP_INITIAL_CWND 4380 668 669 #define SCTP_DEFAULT_MTU 1500 /* emergency default MTU */ 670 /* amount peer is obligated to have in rwnd or I will abort */ 671 #define SCTP_MIN_RWND 1500 672 673 #define SCTP_CHUNK_BUFFER_SIZE 512 674 #define SCTP_PARAM_BUFFER_SIZE 512 675 676 /* small chunk store for looking at chunk_list in auth */ 677 #define SCTP_SMALL_CHUNK_STORE 260 678 679 #define SCTP_HOW_MANY_SECRETS 2 /* how many secrets I keep */ 680 681 #define SCTP_NUMBER_OF_SECRETS 8 /* or 8 * 4 = 32 octets */ 682 #define SCTP_SECRET_SIZE 32 /* number of octets in a 256 bits */ 683 684 /* 685 * SCTP upper layer notifications 686 */ 687 #define SCTP_NOTIFY_ASSOC_UP 1 688 #define SCTP_NOTIFY_ASSOC_DOWN 2 689 #define SCTP_NOTIFY_INTERFACE_DOWN 3 690 #define SCTP_NOTIFY_INTERFACE_UP 4 691 #define SCTP_NOTIFY_SENT_DG_FAIL 5 692 #define SCTP_NOTIFY_UNSENT_DG_FAIL 6 693 #define SCTP_NOTIFY_SPECIAL_SP_FAIL 7 694 #define SCTP_NOTIFY_ASSOC_LOC_ABORTED 8 695 #define SCTP_NOTIFY_ASSOC_REM_ABORTED 9 696 #define SCTP_NOTIFY_ASSOC_RESTART 10 697 #define SCTP_NOTIFY_PEER_SHUTDOWN 11 698 #define SCTP_NOTIFY_ASCONF_ADD_IP 12 699 #define SCTP_NOTIFY_ASCONF_DELETE_IP 13 700 #define SCTP_NOTIFY_ASCONF_SET_PRIMARY 14 701 #define SCTP_NOTIFY_PARTIAL_DELVIERY_INDICATION 15 702 #define SCTP_NOTIFY_INTERFACE_CONFIRMED 16 703 #define SCTP_NOTIFY_STR_RESET_RECV 17 704 #define SCTP_NOTIFY_STR_RESET_SEND 18 705 #define SCTP_NOTIFY_STR_RESET_FAILED_OUT 19 706 #define SCTP_NOTIFY_STR_RESET_FAILED_IN 20 707 #define SCTP_NOTIFY_STR_RESET_DENIED_OUT 21 708 #define SCTP_NOTIFY_STR_RESET_DENIED_IN 22 709 #define SCTP_NOTIFY_AUTH_NEW_KEY 23 710 #define SCTP_NOTIFY_AUTH_FREE_KEY 24 711 #define SCTP_NOTIFY_NO_PEER_AUTH 25 712 #define SCTP_NOTIFY_SENDER_DRY 26 713 #define SCTP_NOTIFY_REMOTE_ERROR 27 714 #define SCTP_NOTIFY_ASSOC_TIMEDOUT 28 715 716 /* This is the value for messages that are NOT completely 717 * copied down where we will start to split the message. 718 * So, with our default, we split only if the piece we 719 * want to take will fill up a full MTU (assuming 720 * a 1500 byte MTU). 721 */ 722 #define SCTP_DEFAULT_SPLIT_POINT_MIN 2904 723 724 /* Maximum length of diagnostic information in error causes */ 725 #define SCTP_DIAG_INFO_LEN 128 726 727 /* ABORT CODES and other tell-tale location 728 * codes are generated by adding the below 729 * to the instance id. 730 */ 731 732 /* File defines */ 733 #define SCTP_FROM_SCTP_INPUT 0x10000000 734 #define SCTP_FROM_SCTP_PCB 0x20000000 735 #define SCTP_FROM_SCTP_INDATA 0x30000000 736 #define SCTP_FROM_SCTP_TIMER 0x40000000 737 #define SCTP_FROM_SCTP_USRREQ 0x50000000 738 #define SCTP_FROM_SCTPUTIL 0x60000000 739 #define SCTP_FROM_SCTP6_USRREQ 0x70000000 740 #define SCTP_FROM_SCTP_ASCONF 0x80000000 741 #define SCTP_FROM_SCTP_OUTPUT 0x90000000 742 #define SCTP_FROM_SCTP_PEELOFF 0xa0000000 743 #define SCTP_FROM_SCTP_SYSCTL 0xb0000000 744 #define SCTP_FROM_SCTP_CC_FUNCTIONS 0xc0000000 745 746 /* Location ID's */ 747 #define SCTP_LOC_1 0x00000001 748 #define SCTP_LOC_2 0x00000002 749 #define SCTP_LOC_3 0x00000003 750 #define SCTP_LOC_4 0x00000004 751 #define SCTP_LOC_5 0x00000005 752 #define SCTP_LOC_6 0x00000006 753 #define SCTP_LOC_7 0x00000007 754 #define SCTP_LOC_8 0x00000008 755 #define SCTP_LOC_9 0x00000009 756 #define SCTP_LOC_10 0x0000000a 757 #define SCTP_LOC_11 0x0000000b 758 #define SCTP_LOC_12 0x0000000c 759 #define SCTP_LOC_13 0x0000000d 760 #define SCTP_LOC_14 0x0000000e 761 #define SCTP_LOC_15 0x0000000f 762 #define SCTP_LOC_16 0x00000010 763 #define SCTP_LOC_17 0x00000011 764 #define SCTP_LOC_18 0x00000012 765 #define SCTP_LOC_19 0x00000013 766 #define SCTP_LOC_20 0x00000014 767 #define SCTP_LOC_21 0x00000015 768 #define SCTP_LOC_22 0x00000016 769 #define SCTP_LOC_23 0x00000017 770 #define SCTP_LOC_24 0x00000018 771 #define SCTP_LOC_25 0x00000019 772 #define SCTP_LOC_26 0x0000001a 773 #define SCTP_LOC_27 0x0000001b 774 #define SCTP_LOC_28 0x0000001c 775 #define SCTP_LOC_29 0x0000001d 776 #define SCTP_LOC_30 0x0000001e 777 #define SCTP_LOC_31 0x0000001f 778 #define SCTP_LOC_32 0x00000020 779 #define SCTP_LOC_33 0x00000021 780 #define SCTP_LOC_34 0x00000022 781 #define SCTP_LOC_35 0x00000023 782 #define SCTP_LOC_36 0x00000024 783 #define SCTP_LOC_37 0x00000025 784 785 /* Free assoc codes */ 786 #define SCTP_NORMAL_PROC 0 787 #define SCTP_PCBFREE_NOFORCE 1 788 #define SCTP_PCBFREE_FORCE 2 789 790 /* From codes for adding addresses */ 791 #define SCTP_ADDR_IS_CONFIRMED 8 792 #define SCTP_ADDR_DYNAMIC_ADDED 6 793 #define SCTP_IN_COOKIE_PROC 100 794 #define SCTP_ALLOC_ASOC 1 795 #define SCTP_LOAD_ADDR_2 2 796 #define SCTP_LOAD_ADDR_3 3 797 #define SCTP_LOAD_ADDR_4 4 798 #define SCTP_LOAD_ADDR_5 5 799 800 #define SCTP_DONOT_SETSCOPE 0 801 #define SCTP_DO_SETSCOPE 1 802 803 /* This value determines the default for when 804 * we try to add more on the send queue., if 805 * there is room. This prevents us from cycling 806 * into the copy_resume routine to often if 807 * we have not got enough space to add a decent 808 * enough size message. Note that if we have enough 809 * space to complete the message copy we will always 810 * add to the message, no matter what the size. Its 811 * only when we reach the point that we have some left 812 * to add, there is only room for part of it that we 813 * will use this threshold. Its also a sysctl. 814 */ 815 #define SCTP_DEFAULT_ADD_MORE 1452 816 817 #ifndef SCTP_PCBHASHSIZE 818 /* default number of association hash buckets in each endpoint */ 819 #define SCTP_PCBHASHSIZE 256 820 #endif 821 #ifndef SCTP_TCBHASHSIZE 822 #define SCTP_TCBHASHSIZE 1024 823 #endif 824 825 #ifndef SCTP_CHUNKQUEUE_SCALE 826 #define SCTP_CHUNKQUEUE_SCALE 10 827 #endif 828 829 /* clock variance is 1 ms */ 830 #define SCTP_CLOCK_GRANULARITY 1 831 #define IP_HDR_SIZE 40 /* we use the size of a IP6 header here this 832 * detracts a small amount for ipv4 but it 833 * simplifies the ipv6 addition */ 834 835 /* Argument magic number for sctp_inpcb_free() */ 836 837 /* third argument */ 838 #define SCTP_CALLED_DIRECTLY_NOCMPSET 0 839 #define SCTP_CALLED_AFTER_CMPSET_OFCLOSE 1 840 #define SCTP_CALLED_FROM_INPKILL_TIMER 2 841 /* second argument */ 842 #define SCTP_FREE_SHOULD_USE_ABORT 1 843 #define SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE 0 844 845 #ifndef IPPROTO_SCTP 846 #define IPPROTO_SCTP 132 /* the Official IANA number :-) */ 847 #endif /* !IPPROTO_SCTP */ 848 849 #define SCTP_MAX_DATA_BUNDLING 256 850 851 /* modular comparison */ 852 /* See RFC 1982 for details. */ 853 #define SCTP_UINT16_GT(a, b) (((a < b) && ((uint16_t)(b - a) > (1U<<15))) || \ 854 ((a > b) && ((uint16_t)(a - b) < (1U<<15)))) 855 #define SCTP_UINT16_GE(a, b) (SCTP_UINT16_GT(a, b) || (a == b)) 856 #define SCTP_UINT32_GT(a, b) (((a < b) && ((uint32_t)(b - a) > (1U<<31))) || \ 857 ((a > b) && ((uint32_t)(a - b) < (1U<<31)))) 858 #define SCTP_UINT32_GE(a, b) (SCTP_UINT32_GT(a, b) || (a == b)) 859 860 #define SCTP_SSN_GT(a, b) SCTP_UINT16_GT(a, b) 861 #define SCTP_SSN_GE(a, b) SCTP_UINT16_GE(a, b) 862 #define SCTP_TSN_GT(a, b) SCTP_UINT32_GT(a, b) 863 #define SCTP_TSN_GE(a, b) SCTP_UINT32_GE(a, b) 864 #define SCTP_MID_GT(i, a, b) (((i) == 1) ? SCTP_UINT32_GT(a, b) : SCTP_UINT16_GT((uint16_t)a, (uint16_t)b)) 865 #define SCTP_MID_GE(i, a, b) (((i) == 1) ? SCTP_UINT32_GE(a, b) : SCTP_UINT16_GE((uint16_t)a, (uint16_t)b)) 866 #define SCTP_MID_EQ(i, a, b) (((i) == 1) ? a == b : (uint16_t)a == (uint16_t)b) 867 868 /* Mapping array manipulation routines */ 869 #define SCTP_IS_TSN_PRESENT(arry, gap) ((arry[(gap >> 3)] >> (gap & 0x07)) & 0x01) 870 #define SCTP_SET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] |= (0x01 << ((gap & 0x07)))) 871 #define SCTP_UNSET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] &= ((~(0x01 << ((gap & 0x07)))) & 0xff)) 872 #define SCTP_CALC_TSN_TO_GAP(gap, tsn, mapping_tsn) do { \ 873 if (tsn >= mapping_tsn) { \ 874 gap = tsn - mapping_tsn; \ 875 } else { \ 876 gap = (MAX_TSN - mapping_tsn) + tsn + 1; \ 877 } \ 878 } while (0) 879 880 #define SCTP_RETRAN_DONE -1 881 #define SCTP_RETRAN_EXIT -2 882 883 /* 884 * This value defines the number of vtag block time wait entry's per list 885 * element. Each entry will take 2 4 byte ints (and of course the overhead 886 * of the next pointer as well). Using 15 as an example will yield * ((8 * 887 * 15) + 8) or 128 bytes of overhead for each timewait block that gets 888 * initialized. Increasing it to 31 would yield 256 bytes per block. 889 */ 890 #define SCTP_NUMBER_IN_VTAG_BLOCK 15 891 /* 892 * If we use the STACK option, we have an array of this size head pointers. 893 * This array is mod'd the with the size to find which bucket and then all 894 * entries must be searched to see if the tag is in timed wait. If so we 895 * reject it. 896 */ 897 #define SCTP_STACK_VTAG_HASH_SIZE 32 898 899 /* 900 * Number of seconds of time wait for a vtag. 901 */ 902 #define SCTP_TIME_WAIT 60 903 904 /* How many micro seconds is the cutoff from 905 * local lan type rtt's 906 */ 907 /* 908 * We allow 900us for the rtt. 909 */ 910 #define SCTP_LOCAL_LAN_RTT 900 911 #define SCTP_LAN_UNKNOWN 0 912 #define SCTP_LAN_LOCAL 1 913 #define SCTP_LAN_INTERNET 2 914 915 #define SCTP_SEND_BUFFER_SPLITTING 0x00000001 916 #define SCTP_RECV_BUFFER_SPLITTING 0x00000002 917 918 /* The system retains a cache of free chunks such to 919 * cut down on calls the memory allocation system. There 920 * is a per association limit of free items and a overall 921 * system limit. If either one gets hit then the resource 922 * stops being cached. 923 */ 924 925 #define SCTP_DEF_ASOC_RESC_LIMIT 10 926 #define SCTP_DEF_SYSTEM_RESC_LIMIT 1000 927 928 /*- 929 * defines for socket lock states. 930 * Used by __APPLE__ 931 */ 932 #define SCTP_SO_LOCKED 1 933 #define SCTP_SO_NOT_LOCKED 0 934 935 /*- 936 * For address locks, do we hold the lock? 937 */ 938 #define SCTP_ADDR_LOCKED 1 939 #define SCTP_ADDR_NOT_LOCKED 0 940 941 #define IN4_ISPRIVATE_ADDRESS(a) \ 942 ((((uint8_t *)&(a)->s_addr)[0] == 10) || \ 943 ((((uint8_t *)&(a)->s_addr)[0] == 172) && \ 944 (((uint8_t *)&(a)->s_addr)[1] >= 16) && \ 945 (((uint8_t *)&(a)->s_addr)[1] <= 32)) || \ 946 ((((uint8_t *)&(a)->s_addr)[0] == 192) && \ 947 (((uint8_t *)&(a)->s_addr)[1] == 168))) 948 949 #define IN4_ISLOOPBACK_ADDRESS(a) \ 950 (((uint8_t *)&(a)->s_addr)[0] == 127) 951 952 #define IN4_ISLINKLOCAL_ADDRESS(a) \ 953 ((((uint8_t *)&(a)->s_addr)[0] == 169) && \ 954 (((uint8_t *)&(a)->s_addr)[1] == 254)) 955 956 /* Maximum size of optval for IPPROTO_SCTP level socket options. */ 957 #define SCTP_SOCKET_OPTION_LIMIT (64 * 1024) 958 959 #if defined(_KERNEL) 960 #define SCTP_GETTIME_TIMEVAL(x) (getmicrouptime(x)) 961 #define SCTP_GETPTIME_TIMEVAL(x) (microuptime(x)) 962 #endif 963 964 #if defined(_KERNEL) || defined(__Userspace__) 965 #define sctp_sowwakeup(inp, so) \ 966 do { \ 967 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 968 sctp_pcb_add_flags(inp, SCTP_PCB_FLAGS_WAKEOUTPUT); \ 969 } else { \ 970 sowwakeup(so); \ 971 } \ 972 } while (0) 973 974 #define sctp_sowwakeup_locked(inp, so) \ 975 do { \ 976 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 977 sctp_pcb_add_flags(inp, SCTP_PCB_FLAGS_WAKEOUTPUT); \ 978 SOCKBUF_UNLOCK(&((so)->so_snd)); \ 979 } else { \ 980 sowwakeup_locked(so); \ 981 } \ 982 } while (0) 983 984 #define sctp_sorwakeup(inp, so) \ 985 do { \ 986 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 987 sctp_pcb_add_flags(inp, SCTP_PCB_FLAGS_WAKEINPUT); \ 988 } else { \ 989 sorwakeup(so); \ 990 } \ 991 } while (0) 992 993 #define sctp_sorwakeup_locked(inp, so) \ 994 do { \ 995 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 996 sctp_pcb_add_flags(inp, SCTP_PCB_FLAGS_WAKEINPUT); \ 997 SOCKBUF_UNLOCK(&((so)->so_rcv)); \ 998 } else { \ 999 sorwakeup_locked(so); \ 1000 } \ 1001 } while (0) 1002 1003 #endif /* _KERNEL || __Userspace__ */ 1004 #endif 1005