1 /*- 2 * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * a) Redistributions of source code must retain the above copyright notice, 8 * this list of conditions and the following disclaimer. 9 * 10 * b) Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the distribution. 13 * 14 * c) Neither the name of Cisco Systems, Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived 16 * from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 20 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 28 * THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 /* $KAME: sctp_constants.h,v 1.17 2005/03/06 16:04:17 itojun Exp $ */ 32 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 35 36 #ifndef __sctp_constants_h__ 37 #define __sctp_constants_h__ 38 39 /* IANA assigned port number for SCTP over UDP encapsulation */ 40 /* For freebsd we cannot bind the port at 41 * startup. Otherwise what will happen is 42 * we really won't be bound. The user must 43 * put it into the sysctl... or we need 44 * to build a special timer for this to allow 45 * us to wait 1 second or so after the system 46 * comes up. 47 */ 48 #define SCTP_OVER_UDP_TUNNELING_PORT 0 49 /* Number of packets to get before sack sent by default */ 50 #define SCTP_DEFAULT_SACK_FREQ 2 51 52 /* Address limit - This variable is calculated 53 * based on an 65535 byte max ip packet. We take out 100 bytes 54 * for the cookie, 40 bytes for a v6 header and 32 55 * bytes for the init structure. A second init structure 56 * for the init-ack and then finally a third one for the 57 * imbedded init. This yeilds 100+40+(3 * 32) = 236 bytes. 58 * This leaves 65299 bytes for addresses. We throw out the 299 bytes. 59 * Now whatever we send in the INIT() we need to allow to get back in the 60 * INIT-ACK plus all the values from INIT and INIT-ACK 61 * listed in the cookie. Plus we need some overhead for 62 * maybe copied parameters in the COOKIE. If we 63 * allow 1080 addresses, and each side has 1080 V6 addresses 64 * that will be 21600 bytes. In the INIT-ACK we will 65 * see the INIT-ACK 21600 + 43200 in the cookie. This leaves 66 * about 500 bytes slack for misc things in the cookie. 67 */ 68 #define SCTP_ADDRESS_LIMIT 1080 69 70 /* We need at least 2k of space for us, inits 71 * larger than that lets abort. 72 */ 73 #define SCTP_LARGEST_INIT_ACCEPTED (65535 - 2048) 74 75 /* Number of addresses where we just skip the counting */ 76 #define SCTP_COUNT_LIMIT 40 77 78 #define SCTP_ZERO_COPY_TICK_DELAY (((100 * hz) + 999) / 1000) 79 #define SCTP_ZERO_COPY_SENDQ_TICK_DELAY (((100 * hz) + 999) / 1000) 80 81 /* Number of ticks to delay before running 82 * iterator on an address change. 83 */ 84 #define SCTP_ADDRESS_TICK_DELAY 2 85 86 #define SCTP_VERSION_STRING "KAME-BSD 1.1" 87 /* #define SCTP_AUDITING_ENABLED 1 used for debug/auditing */ 88 #define SCTP_AUDIT_SIZE 256 89 90 91 #define SCTP_KTRHEAD_NAME "sctp_iterator" 92 #define SCTP_KTHREAD_PAGES 0 93 94 95 /* If you support Multi-VRF how big to 96 * make the initial array of VRF's to. 97 */ 98 #define SCTP_DEFAULT_VRF_SIZE 4 99 100 /* constants for rto calc */ 101 #define sctp_align_safe_nocopy 0 102 #define sctp_align_unsafe_makecopy 1 103 104 /* JRS - Values defined for the HTCP algorithm */ 105 #define ALPHA_BASE (1<<7) /* 1.0 with shift << 7 */ 106 #define BETA_MIN (1<<6) /* 0.5 with shift << 7 */ 107 #define BETA_MAX 102 /* 0.8 with shift << 7 */ 108 109 /* Places that CWND log can happen from */ 110 #define SCTP_CWND_LOG_FROM_FR 1 111 #define SCTP_CWND_LOG_FROM_RTX 2 112 #define SCTP_CWND_LOG_FROM_BRST 3 113 #define SCTP_CWND_LOG_FROM_SS 4 114 #define SCTP_CWND_LOG_FROM_CA 5 115 #define SCTP_CWND_LOG_FROM_SAT 6 116 #define SCTP_BLOCK_LOG_INTO_BLK 7 117 #define SCTP_BLOCK_LOG_OUTOF_BLK 8 118 #define SCTP_BLOCK_LOG_CHECK 9 119 #define SCTP_STR_LOG_FROM_INTO_STRD 10 120 #define SCTP_STR_LOG_FROM_IMMED_DEL 11 121 #define SCTP_STR_LOG_FROM_INSERT_HD 12 122 #define SCTP_STR_LOG_FROM_INSERT_MD 13 123 #define SCTP_STR_LOG_FROM_INSERT_TL 14 124 #define SCTP_STR_LOG_FROM_MARK_TSN 15 125 #define SCTP_STR_LOG_FROM_EXPRS_DEL 16 126 #define SCTP_FR_LOG_BIGGEST_TSNS 17 127 #define SCTP_FR_LOG_STRIKE_TEST 18 128 #define SCTP_FR_LOG_STRIKE_CHUNK 19 129 #define SCTP_FR_T3_TIMEOUT 20 130 #define SCTP_MAP_PREPARE_SLIDE 21 131 #define SCTP_MAP_SLIDE_FROM 22 132 #define SCTP_MAP_SLIDE_RESULT 23 133 #define SCTP_MAP_SLIDE_CLEARED 24 134 #define SCTP_MAP_SLIDE_NONE 25 135 #define SCTP_FR_T3_MARK_TIME 26 136 #define SCTP_FR_T3_MARKED 27 137 #define SCTP_FR_T3_STOPPED 28 138 #define SCTP_FR_MARKED 30 139 #define SCTP_CWND_LOG_NOADV_SS 31 140 #define SCTP_CWND_LOG_NOADV_CA 32 141 #define SCTP_MAX_BURST_APPLIED 33 142 #define SCTP_MAX_IFP_APPLIED 34 143 #define SCTP_MAX_BURST_ERROR_STOP 35 144 #define SCTP_INCREASE_PEER_RWND 36 145 #define SCTP_DECREASE_PEER_RWND 37 146 #define SCTP_SET_PEER_RWND_VIA_SACK 38 147 #define SCTP_LOG_MBCNT_INCREASE 39 148 #define SCTP_LOG_MBCNT_DECREASE 40 149 #define SCTP_LOG_MBCNT_CHKSET 41 150 #define SCTP_LOG_NEW_SACK 42 151 #define SCTP_LOG_TSN_ACKED 43 152 #define SCTP_LOG_TSN_REVOKED 44 153 #define SCTP_LOG_LOCK_TCB 45 154 #define SCTP_LOG_LOCK_INP 46 155 #define SCTP_LOG_LOCK_SOCK 47 156 #define SCTP_LOG_LOCK_SOCKBUF_R 48 157 #define SCTP_LOG_LOCK_SOCKBUF_S 49 158 #define SCTP_LOG_LOCK_CREATE 50 159 #define SCTP_LOG_INITIAL_RTT 51 160 #define SCTP_LOG_RTTVAR 52 161 #define SCTP_LOG_SBALLOC 53 162 #define SCTP_LOG_SBFREE 54 163 #define SCTP_LOG_SBRESULT 55 164 #define SCTP_FR_DUPED 56 165 #define SCTP_FR_MARKED_EARLY 57 166 #define SCTP_FR_CWND_REPORT 58 167 #define SCTP_FR_CWND_REPORT_START 59 168 #define SCTP_FR_CWND_REPORT_STOP 60 169 #define SCTP_CWND_LOG_FROM_SEND 61 170 #define SCTP_CWND_INITIALIZATION 62 171 #define SCTP_CWND_LOG_FROM_T3 63 172 #define SCTP_CWND_LOG_FROM_SACK 64 173 #define SCTP_CWND_LOG_NO_CUMACK 65 174 #define SCTP_CWND_LOG_FROM_RESEND 66 175 #define SCTP_FR_LOG_CHECK_STRIKE 67 176 #define SCTP_SEND_NOW_COMPLETES 68 177 #define SCTP_CWND_LOG_FILL_OUTQ_CALLED 69 178 #define SCTP_CWND_LOG_FILL_OUTQ_FILLS 70 179 #define SCTP_LOG_FREE_SENT 71 180 #define SCTP_NAGLE_APPLIED 72 181 #define SCTP_NAGLE_SKIPPED 73 182 #define SCTP_WAKESND_FROM_SACK 74 183 #define SCTP_WAKESND_FROM_FWDTSN 75 184 #define SCTP_NOWAKE_FROM_SACK 76 185 #define SCTP_CWNDLOG_PRESEND 77 186 #define SCTP_CWNDLOG_ENDSEND 78 187 #define SCTP_AT_END_OF_SACK 79 188 #define SCTP_REASON_FOR_SC 80 189 #define SCTP_BLOCK_LOG_INTO_BLKA 81 190 #define SCTP_ENTER_USER_RECV 82 191 #define SCTP_USER_RECV_SACKS 83 192 #define SCTP_SORECV_BLOCKSA 84 193 #define SCTP_SORECV_BLOCKSB 85 194 #define SCTP_SORECV_DONE 86 195 #define SCTP_SACK_RWND_UPDATE 87 196 #define SCTP_SORECV_ENTER 88 197 #define SCTP_SORECV_ENTERPL 89 198 #define SCTP_MBUF_INPUT 90 199 #define SCTP_MBUF_IALLOC 91 200 #define SCTP_MBUF_IFREE 92 201 #define SCTP_MBUF_ICOPY 93 202 #define SCTP_MBUF_SPLIT 94 203 #define SCTP_SORCV_FREECTL 95 204 #define SCTP_SORCV_DOESCPY 96 205 #define SCTP_SORCV_DOESLCK 97 206 #define SCTP_SORCV_DOESADJ 98 207 #define SCTP_SORCV_BOTWHILE 99 208 #define SCTP_SORCV_PASSBF 100 209 #define SCTP_SORCV_ADJD 101 210 #define SCTP_UNKNOWN_MAX 102 211 #define SCTP_RANDY_STUFF 103 212 #define SCTP_RANDY_STUFF1 104 213 #define SCTP_STRMOUT_LOG_ASSIGN 105 214 #define SCTP_STRMOUT_LOG_SEND 106 215 #define SCTP_FLIGHT_LOG_DOWN_CA 107 216 #define SCTP_FLIGHT_LOG_UP 108 217 #define SCTP_FLIGHT_LOG_DOWN_GAP 109 218 #define SCTP_FLIGHT_LOG_DOWN_RSND 110 219 #define SCTP_FLIGHT_LOG_UP_RSND 111 220 #define SCTP_FLIGHT_LOG_DOWN_RSND_TO 112 221 #define SCTP_FLIGHT_LOG_DOWN_WP 113 222 #define SCTP_FLIGHT_LOG_UP_REVOKE 114 223 #define SCTP_FLIGHT_LOG_DOWN_PDRP 115 224 #define SCTP_FLIGHT_LOG_DOWN_PMTU 116 225 #define SCTP_SACK_LOG_NORMAL 117 226 #define SCTP_SACK_LOG_EXPRESS 118 227 #define SCTP_MAP_TSN_ENTERS 119 228 #define SCTP_THRESHOLD_CLEAR 120 229 #define SCTP_THRESHOLD_INCR 121 230 #define SCTP_FLIGHT_LOG_DWN_WP_FWD 122 231 #define SCTP_FWD_TSN_CHECK 123 232 #define SCTP_LOG_MAX_TYPES 124 233 /* 234 * To turn on various logging, you must first enable 'options KTR' and 235 * you might want to bump the entires 'options KTR_ENTRIES=80000'. 236 * To get something to log you define one of the logging defines. 237 * (see LINT). 238 * 239 * This gets the compile in place, but you still need to turn the 240 * logging flag on too in the sysctl (see in sctp.h). 241 */ 242 243 #define SCTP_LOG_EVENT_UNKNOWN 0 244 #define SCTP_LOG_EVENT_CWND 1 245 #define SCTP_LOG_EVENT_BLOCK 2 246 #define SCTP_LOG_EVENT_STRM 3 247 #define SCTP_LOG_EVENT_FR 4 248 #define SCTP_LOG_EVENT_MAP 5 249 #define SCTP_LOG_EVENT_MAXBURST 6 250 #define SCTP_LOG_EVENT_RWND 7 251 #define SCTP_LOG_EVENT_MBCNT 8 252 #define SCTP_LOG_EVENT_SACK 9 253 #define SCTP_LOG_LOCK_EVENT 10 254 #define SCTP_LOG_EVENT_RTT 11 255 #define SCTP_LOG_EVENT_SB 12 256 #define SCTP_LOG_EVENT_NAGLE 13 257 #define SCTP_LOG_EVENT_WAKE 14 258 #define SCTP_LOG_MISC_EVENT 15 259 #define SCTP_LOG_EVENT_CLOSE 16 260 #define SCTP_LOG_EVENT_MBUF 17 261 #define SCTP_LOG_CHUNK_PROC 18 262 #define SCTP_LOG_ERROR_RET 19 263 264 #define SCTP_LOG_MAX_EVENT 20 265 266 #define SCTP_LOCK_UNKNOWN 2 267 268 269 /* number of associations by default for zone allocation */ 270 #define SCTP_MAX_NUM_OF_ASOC 40000 271 /* how many addresses per assoc remote and local */ 272 #define SCTP_SCALE_FOR_ADDR 2 273 274 /* default AUTO_ASCONF mode enable(1)/disable(0) value (sysctl) */ 275 #define SCTP_DEFAULT_AUTO_ASCONF 1 276 277 /* default MULTIPLE_ASCONF mode enable(1)/disable(0) value (sysctl) */ 278 #define SCTP_DEFAULT_MULTIPLE_ASCONFS 0 279 280 /* default MOBILITY_BASE mode enable(1)/disable(0) value (sysctl) */ 281 #define SCTP_DEFAULT_MOBILITY_BASE 0 282 283 /* default MOBILITY_FASTHANDOFF mode enable(1)/disable(0) value (sysctl) */ 284 #define SCTP_DEFAULT_MOBILITY_FASTHANDOFF 0 285 286 /* 287 * Theshold for rwnd updates, we have to read (sb_hiwat >> 288 * SCTP_RWND_HIWAT_SHIFT) before we will look to see if we need to send a 289 * window update sack. When we look, we compare the last rwnd we sent vs the 290 * current rwnd. It too must be greater than this value. Using 3 divdes the 291 * hiwat by 8, so for 200k rwnd we need to read 24k. For a 64k rwnd we need 292 * to read 8k. This seems about right.. I hope :-D.. we do set a 293 * min of a MTU on it so if the rwnd is real small we will insist 294 * on a full MTU of 1500 bytes. 295 */ 296 #define SCTP_RWND_HIWAT_SHIFT 3 297 298 /* How much of the rwnd must the 299 * message be taking up to start partial delivery. 300 * We calculate this by shifing the hi_water (recv_win) 301 * left the following .. set to 1, when a message holds 302 * 1/2 the rwnd. If we set it to 2 when a message holds 303 * 1/4 the rwnd...etc.. 304 */ 305 306 #define SCTP_PARTIAL_DELIVERY_SHIFT 1 307 308 /* 309 * default HMAC for cookies, etc... use one of the AUTH HMAC id's 310 * SCTP_HMAC is the HMAC_ID to use 311 * SCTP_SIGNATURE_SIZE is the digest length 312 */ 313 #define SCTP_HMAC SCTP_AUTH_HMAC_ID_SHA1 314 #define SCTP_SIGNATURE_SIZE SCTP_AUTH_DIGEST_LEN_SHA1 315 #define SCTP_SIGNATURE_ALOC_SIZE SCTP_SIGNATURE_SIZE 316 317 /* 318 * the SCTP protocol signature this includes the version number encoded in 319 * the last 4 bits of the signature. 320 */ 321 #define PROTO_SIGNATURE_A 0x30000000 322 #define SCTP_VERSION_NUMBER 0x3 323 324 #define MAX_TSN 0xffffffff 325 #define MAX_SEQ 0xffff 326 327 /* how many executions every N tick's */ 328 #define SCTP_ITERATOR_MAX_AT_ONCE 20 329 330 /* number of clock ticks between iterator executions */ 331 #define SCTP_ITERATOR_TICKS 1 332 333 /* 334 * option: If you comment out the following you will receive the old behavior 335 * of obeying cwnd for the fast retransmit algorithm. With this defined a FR 336 * happens right away with-out waiting for the flightsize to drop below the 337 * cwnd value (which is reduced by the FR to 1/2 the inflight packets). 338 */ 339 #define SCTP_IGNORE_CWND_ON_FR 1 340 341 /* 342 * Adds implementors guide behavior to only use newest highest update in SACK 343 * gap ack's to figure out if you need to stroke a chunk for FR. 344 */ 345 #define SCTP_NO_FR_UNLESS_SEGMENT_SMALLER 1 346 347 /* default max I can burst out after a fast retransmit */ 348 #define SCTP_DEF_MAX_BURST 4 349 /* IP hdr (20/40) + 12+2+2 (enet) + sctp common 12 */ 350 #define SCTP_FIRST_MBUF_RESV 68 351 /* Packet transmit states in the sent field */ 352 #define SCTP_DATAGRAM_UNSENT 0 353 #define SCTP_DATAGRAM_SENT 1 354 #define SCTP_DATAGRAM_RESEND1 2 /* not used (in code, but may 355 * hit this value) */ 356 #define SCTP_DATAGRAM_RESEND2 3 /* not used (in code, but may 357 * hit this value) */ 358 #define SCTP_DATAGRAM_RESEND 4 359 #define SCTP_DATAGRAM_ACKED 10010 360 #define SCTP_DATAGRAM_MARKED 20010 361 #define SCTP_FORWARD_TSN_SKIP 30010 362 363 /* chunk output send from locations */ 364 #define SCTP_OUTPUT_FROM_USR_SEND 0 365 #define SCTP_OUTPUT_FROM_T3 1 366 #define SCTP_OUTPUT_FROM_INPUT_ERROR 2 367 #define SCTP_OUTPUT_FROM_CONTROL_PROC 3 368 #define SCTP_OUTPUT_FROM_SACK_TMR 4 369 #define SCTP_OUTPUT_FROM_SHUT_TMR 5 370 #define SCTP_OUTPUT_FROM_HB_TMR 6 371 #define SCTP_OUTPUT_FROM_SHUT_ACK_TMR 7 372 #define SCTP_OUTPUT_FROM_ASCONF_TMR 8 373 #define SCTP_OUTPUT_FROM_STRRST_TMR 9 374 #define SCTP_OUTPUT_FROM_AUTOCLOSE_TMR 10 375 #define SCTP_OUTPUT_FROM_EARLY_FR_TMR 11 376 #define SCTP_OUTPUT_FROM_STRRST_REQ 12 377 #define SCTP_OUTPUT_FROM_USR_RCVD 13 378 #define SCTP_OUTPUT_FROM_COOKIE_ACK 14 379 #define SCTP_OUTPUT_FROM_DRAIN 15 380 #define SCTP_OUTPUT_FROM_CLOSING 16 381 /* SCTP chunk types are moved sctp.h for application (NAT, FW) use */ 382 383 /* align to 32-bit sizes */ 384 #define SCTP_SIZE32(x) ((((x)+3) >> 2) << 2) 385 386 #define IS_SCTP_CONTROL(a) ((a)->chunk_type != SCTP_DATA) 387 #define IS_SCTP_DATA(a) ((a)->chunk_type == SCTP_DATA) 388 389 390 /* SCTP parameter types */ 391 /*************0x0000 series*************/ 392 #define SCTP_HEARTBEAT_INFO 0x0001 393 #define SCTP_IPV4_ADDRESS 0x0005 394 #define SCTP_IPV6_ADDRESS 0x0006 395 #define SCTP_STATE_COOKIE 0x0007 396 #define SCTP_UNRECOG_PARAM 0x0008 397 #define SCTP_COOKIE_PRESERVE 0x0009 398 #define SCTP_HOSTNAME_ADDRESS 0x000b 399 #define SCTP_SUPPORTED_ADDRTYPE 0x000c 400 401 /* draft-ietf-stewart-tsvwg-strreset-xxx */ 402 #define SCTP_STR_RESET_OUT_REQUEST 0x000d 403 #define SCTP_STR_RESET_IN_REQUEST 0x000e 404 #define SCTP_STR_RESET_TSN_REQUEST 0x000f 405 #define SCTP_STR_RESET_RESPONSE 0x0010 406 #define SCTP_STR_RESET_ADD_STREAMS 0x0011 407 408 #define SCTP_MAX_RESET_PARAMS 2 409 #define SCTP_STREAM_RESET_TSN_DELTA 0x1000 410 411 /*************0x4000 series*************/ 412 413 /*************0x8000 series*************/ 414 #define SCTP_ECN_CAPABLE 0x8000 415 /* ECN Nonce: draft-ladha-sctp-ecn-nonce */ 416 #define SCTP_ECN_NONCE_SUPPORTED 0x8001 417 /* draft-ietf-tsvwg-auth-xxx */ 418 #define SCTP_RANDOM 0x8002 419 #define SCTP_CHUNK_LIST 0x8003 420 #define SCTP_HMAC_LIST 0x8004 421 /* 422 * draft-ietf-tsvwg-addip-sctp-xx param=0x8008 len=0xNNNN Byte | Byte | Byte 423 * | Byte Byte | Byte ... 424 * 425 * Where each byte is a chunk type extension supported. For example, to support 426 * all chunks one would have (in hex): 427 * 428 * 80 01 00 09 C0 C1 80 81 82 00 00 00 429 * 430 * Has the parameter. C0 = PR-SCTP (RFC3758) C1, 80 = ASCONF (addip draft) 81 431 * = Packet Drop 82 = Stream Reset 83 = Authentication 432 */ 433 #define SCTP_SUPPORTED_CHUNK_EXT 0x8008 434 435 /*************0xC000 series*************/ 436 #define SCTP_PRSCTP_SUPPORTED 0xc000 437 /* draft-ietf-tsvwg-addip-sctp */ 438 #define SCTP_ADD_IP_ADDRESS 0xc001 439 #define SCTP_DEL_IP_ADDRESS 0xc002 440 #define SCTP_ERROR_CAUSE_IND 0xc003 441 #define SCTP_SET_PRIM_ADDR 0xc004 442 #define SCTP_SUCCESS_REPORT 0xc005 443 #define SCTP_ULP_ADAPTATION 0xc006 444 /* behave-nat-draft */ 445 #define SCTP_HAS_NAT_SUPPORT 0xc007 446 #define SCTP_NAT_VTAGS 0xc008 447 448 /* Notification error codes */ 449 #define SCTP_NOTIFY_DATAGRAM_UNSENT 0x0001 450 #define SCTP_NOTIFY_DATAGRAM_SENT 0x0002 451 #define SCTP_FAILED_THRESHOLD 0x0004 452 #define SCTP_HEARTBEAT_SUCCESS 0x0008 453 #define SCTP_RESPONSE_TO_USER_REQ 0x0010 454 #define SCTP_INTERNAL_ERROR 0x0020 455 #define SCTP_SHUTDOWN_GUARD_EXPIRES 0x0040 456 #define SCTP_RECEIVED_SACK 0x0080 457 #define SCTP_PEER_FAULTY 0x0100 458 #define SCTP_ICMP_REFUSED 0x0200 459 460 /* bits for TOS field */ 461 #define SCTP_ECT0_BIT 0x02 462 #define SCTP_ECT1_BIT 0x01 463 #define SCTP_CE_BITS 0x03 464 465 /* below turns off above */ 466 #define SCTP_FLEXIBLE_ADDRESS 0x20 467 #define SCTP_NO_HEARTBEAT 0x40 468 469 /* mask to get sticky */ 470 #define SCTP_STICKY_OPTIONS_MASK 0x0c 471 472 473 /* 474 * SCTP states for internal state machine XXX (should match "user" values) 475 */ 476 #define SCTP_STATE_EMPTY 0x0000 477 #define SCTP_STATE_INUSE 0x0001 478 #define SCTP_STATE_COOKIE_WAIT 0x0002 479 #define SCTP_STATE_COOKIE_ECHOED 0x0004 480 #define SCTP_STATE_OPEN 0x0008 481 #define SCTP_STATE_SHUTDOWN_SENT 0x0010 482 #define SCTP_STATE_SHUTDOWN_RECEIVED 0x0020 483 #define SCTP_STATE_SHUTDOWN_ACK_SENT 0x0040 484 #define SCTP_STATE_SHUTDOWN_PENDING 0x0080 485 #define SCTP_STATE_CLOSED_SOCKET 0x0100 486 #define SCTP_STATE_ABOUT_TO_BE_FREED 0x0200 487 #define SCTP_STATE_PARTIAL_MSG_LEFT 0x0400 488 #define SCTP_STATE_WAS_ABORTED 0x0800 489 #define SCTP_STATE_IN_ACCEPT_QUEUE 0x1000 490 #define SCTP_STATE_MASK 0x007f 491 492 #define SCTP_GET_STATE(asoc) ((asoc)->state & SCTP_STATE_MASK) 493 #define SCTP_SET_STATE(asoc, newstate) ((asoc)->state = ((asoc)->state & ~SCTP_STATE_MASK) | newstate) 494 #define SCTP_CLEAR_SUBSTATE(asoc, substate) ((asoc)->state &= ~substate) 495 #define SCTP_ADD_SUBSTATE(asoc, substate) ((asoc)->state |= substate) 496 497 /* SCTP reachability state for each address */ 498 #define SCTP_ADDR_REACHABLE 0x001 499 #define SCTP_ADDR_NOT_REACHABLE 0x002 500 #define SCTP_ADDR_NOHB 0x004 501 #define SCTP_ADDR_BEING_DELETED 0x008 502 #define SCTP_ADDR_NOT_IN_ASSOC 0x010 503 #define SCTP_ADDR_WAS_PRIMARY 0x020 504 #define SCTP_ADDR_SWITCH_PRIMARY 0x040 505 #define SCTP_ADDR_OUT_OF_SCOPE 0x080 506 #define SCTP_ADDR_DOUBLE_SWITCH 0x100 507 #define SCTP_ADDR_UNCONFIRMED 0x200 508 #define SCTP_ADDR_REQ_PRIMARY 0x400 509 /* JRS 5/13/07 - Added potentially failed state for CMT PF */ 510 #define SCTP_ADDR_PF 0x800 511 #define SCTP_REACHABLE_MASK 0x203 512 513 /* bound address types (e.g. valid address types to allow) */ 514 #define SCTP_BOUND_V6 0x01 515 #define SCTP_BOUND_V4 0x02 516 517 /* 518 * what is the default number of mbufs in a chain I allow before switching to 519 * a cluster 520 */ 521 #define SCTP_DEFAULT_MBUFS_IN_CHAIN 5 522 523 /* How long a cookie lives in milli-seconds */ 524 #define SCTP_DEFAULT_COOKIE_LIFE 60000 525 526 /* resource limit of streams */ 527 #define MAX_SCTP_STREAMS 2048 528 529 /* Maximum the mapping array will grow to (TSN mapping array) */ 530 #define SCTP_MAPPING_ARRAY 512 531 532 /* size of the inital malloc on the mapping array */ 533 #define SCTP_INITIAL_MAPPING_ARRAY 16 534 /* how much we grow the mapping array each call */ 535 #define SCTP_MAPPING_ARRAY_INCR 32 536 537 /* 538 * Here we define the timer types used by the implementation as arguments in 539 * the set/get timer type calls. 540 */ 541 #define SCTP_TIMER_INIT 0 542 #define SCTP_TIMER_RECV 1 543 #define SCTP_TIMER_SEND 2 544 #define SCTP_TIMER_HEARTBEAT 3 545 #define SCTP_TIMER_PMTU 4 546 #define SCTP_TIMER_MAXSHUTDOWN 5 547 #define SCTP_TIMER_SIGNATURE 6 548 /* 549 * number of timer types in the base SCTP structure used in the set/get and 550 * has the base default. 551 */ 552 #define SCTP_NUM_TMRS 7 553 554 /* timer types */ 555 #define SCTP_TIMER_TYPE_NONE 0 556 #define SCTP_TIMER_TYPE_SEND 1 557 #define SCTP_TIMER_TYPE_INIT 2 558 #define SCTP_TIMER_TYPE_RECV 3 559 #define SCTP_TIMER_TYPE_SHUTDOWN 4 560 #define SCTP_TIMER_TYPE_HEARTBEAT 5 561 #define SCTP_TIMER_TYPE_COOKIE 6 562 #define SCTP_TIMER_TYPE_NEWCOOKIE 7 563 #define SCTP_TIMER_TYPE_PATHMTURAISE 8 564 #define SCTP_TIMER_TYPE_SHUTDOWNACK 9 565 #define SCTP_TIMER_TYPE_ASCONF 10 566 #define SCTP_TIMER_TYPE_SHUTDOWNGUARD 11 567 #define SCTP_TIMER_TYPE_AUTOCLOSE 12 568 #define SCTP_TIMER_TYPE_EVENTWAKE 13 569 #define SCTP_TIMER_TYPE_STRRESET 14 570 #define SCTP_TIMER_TYPE_INPKILL 15 571 #define SCTP_TIMER_TYPE_EARLYFR 17 572 #define SCTP_TIMER_TYPE_ASOCKILL 18 573 #define SCTP_TIMER_TYPE_ADDR_WQ 19 574 #define SCTP_TIMER_TYPE_ZERO_COPY 20 575 #define SCTP_TIMER_TYPE_ZCOPY_SENDQ 21 576 #define SCTP_TIMER_TYPE_PRIM_DELETED 22 577 /* add new timers here - and increment LAST */ 578 #define SCTP_TIMER_TYPE_LAST 23 579 580 #define SCTP_IS_TIMER_TYPE_VALID(t) (((t) > SCTP_TIMER_TYPE_NONE) && \ 581 ((t) < SCTP_TIMER_TYPE_LAST)) 582 583 584 585 /* max number of TSN's dup'd that I will hold */ 586 #define SCTP_MAX_DUP_TSNS 20 587 588 /* 589 * Here we define the types used when setting the retry amounts. 590 */ 591 /* How many drop re-attempts we make on INIT/COOKIE-ECHO */ 592 #define SCTP_RETRY_DROPPED_THRESH 4 593 594 /* 595 * Maxmium number of chunks a single association can have on it. Note that 596 * this is a squishy number since the count can run over this if the user 597 * sends a large message down .. the fragmented chunks don't count until 598 * AFTER the message is on queue.. it would be the next send that blocks 599 * things. This number will get tuned up at boot in the sctp_init and use the 600 * number of clusters as a base. This way high bandwidth environments will 601 * not get impacted by the lower bandwidth sending a bunch of 1 byte chunks 602 */ 603 #define SCTP_ASOC_MAX_CHUNKS_ON_QUEUE 512 604 605 606 /* The conversion from time to ticks and vice versa is done by rounding 607 * upwards. This way we can test in the code the time to be positive and 608 * know that this corresponds to a positive number of ticks. 609 */ 610 #define MSEC_TO_TICKS(x) ((hz == 1000) ? x : ((((x) * hz) + 999) / 1000)) 611 #define TICKS_TO_MSEC(x) ((hz == 1000) ? x : ((((x) * 1000) + (hz - 1)) / hz)) 612 613 #define SEC_TO_TICKS(x) ((x) * hz) 614 #define TICKS_TO_SEC(x) (((x) + (hz - 1)) / hz) 615 616 /* 617 * Basically the minimum amount of time before I do a early FR. Making this 618 * value to low will cause duplicate retransmissions. 619 */ 620 #define SCTP_MINFR_MSEC_TIMER 250 621 /* The floor this value is allowed to fall to when starting a timer. */ 622 #define SCTP_MINFR_MSEC_FLOOR 20 623 624 /* init timer def = 1 sec */ 625 #define SCTP_INIT_SEC 1 626 627 /* send timer def = 1 seconds */ 628 #define SCTP_SEND_SEC 1 629 630 /* recv timer def = 200ms */ 631 #define SCTP_RECV_MSEC 200 632 633 /* 30 seconds + RTO (in ms) */ 634 #define SCTP_HB_DEFAULT_MSEC 30000 635 636 /* Max time I will wait for Shutdown to complete */ 637 #define SCTP_DEF_MAX_SHUTDOWN_SEC 180 638 639 640 /* 641 * This is how long a secret lives, NOT how long a cookie lives how many 642 * ticks the current secret will live. 643 */ 644 #define SCTP_DEFAULT_SECRET_LIFE_SEC 3600 645 646 #define SCTP_RTO_UPPER_BOUND (60000) /* 60 sec in ms */ 647 #define SCTP_RTO_UPPER_BOUND_SEC 60 /* for the init timer */ 648 #define SCTP_RTO_LOWER_BOUND (1000) /* 1 sec in ms */ 649 #define SCTP_RTO_INITIAL (3000) /* 3 sec in ms */ 650 651 652 #define SCTP_INP_KILL_TIMEOUT 20/* number of ms to retry kill of inpcb */ 653 #define SCTP_ASOC_KILL_TIMEOUT 10 /* number of ms to retry kill of inpcb */ 654 655 #define SCTP_DEF_MAX_INIT 8 656 #define SCTP_DEF_MAX_SEND 10 657 #define SCTP_DEF_MAX_PATH_RTX 5 658 659 #define SCTP_DEF_PMTU_RAISE_SEC 600 /* 10 min between raise attempts */ 660 661 662 /* How many streams I request initally by default */ 663 #define SCTP_OSTREAM_INITIAL 10 664 665 /* 666 * How many smallest_mtu's need to increase before a window update sack is 667 * sent (should be a power of 2). 668 */ 669 /* Send window update (incr * this > hiwat). Should be a power of 2 */ 670 #define SCTP_MINIMAL_RWND (4096) /* minimal rwnd */ 671 672 #define SCTP_ADDRMAX 24 673 674 /* SCTP DEBUG Switch parameters */ 675 #define SCTP_DEBUG_TIMER1 0x00000001 676 #define SCTP_DEBUG_TIMER2 0x00000002 /* unused */ 677 #define SCTP_DEBUG_TIMER3 0x00000004 /* unused */ 678 #define SCTP_DEBUG_TIMER4 0x00000008 679 #define SCTP_DEBUG_OUTPUT1 0x00000010 680 #define SCTP_DEBUG_OUTPUT2 0x00000020 681 #define SCTP_DEBUG_OUTPUT3 0x00000040 682 #define SCTP_DEBUG_OUTPUT4 0x00000080 683 #define SCTP_DEBUG_UTIL1 0x00000100 684 #define SCTP_DEBUG_UTIL2 0x00000200 /* unused */ 685 #define SCTP_DEBUG_AUTH1 0x00000400 686 #define SCTP_DEBUG_AUTH2 0x00000800 /* unused */ 687 #define SCTP_DEBUG_INPUT1 0x00001000 688 #define SCTP_DEBUG_INPUT2 0x00002000 689 #define SCTP_DEBUG_INPUT3 0x00004000 690 #define SCTP_DEBUG_INPUT4 0x00008000 /* unused */ 691 #define SCTP_DEBUG_ASCONF1 0x00010000 692 #define SCTP_DEBUG_ASCONF2 0x00020000 693 #define SCTP_DEBUG_OUTPUT5 0x00040000 /* unused */ 694 #define SCTP_DEBUG_XXX 0x00080000 /* unused */ 695 #define SCTP_DEBUG_PCB1 0x00100000 696 #define SCTP_DEBUG_PCB2 0x00200000 /* unused */ 697 #define SCTP_DEBUG_PCB3 0x00400000 698 #define SCTP_DEBUG_PCB4 0x00800000 699 #define SCTP_DEBUG_INDATA1 0x01000000 700 #define SCTP_DEBUG_INDATA2 0x02000000 /* unused */ 701 #define SCTP_DEBUG_INDATA3 0x04000000 /* unused */ 702 #define SCTP_DEBUG_CRCOFFLOAD 0x08000000 /* unused */ 703 #define SCTP_DEBUG_USRREQ1 0x10000000 /* unused */ 704 #define SCTP_DEBUG_USRREQ2 0x20000000 /* unused */ 705 #define SCTP_DEBUG_PEEL1 0x40000000 706 #define SCTP_DEBUG_XXXXX 0x80000000 /* unused */ 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_DEFAULT_MINSEGMENT 512 /* MTU size ... if no mtu disc */ 735 #define SCTP_HOW_MANY_SECRETS 2 /* how many secrets I keep */ 736 737 #define SCTP_NUMBER_OF_SECRETS 8 /* or 8 * 4 = 32 octets */ 738 #define SCTP_SECRET_SIZE 32 /* number of octets in a 256 bits */ 739 740 741 /* 742 * SCTP upper layer notifications 743 */ 744 #define SCTP_NOTIFY_ASSOC_UP 1 745 #define SCTP_NOTIFY_ASSOC_DOWN 2 746 #define SCTP_NOTIFY_INTERFACE_DOWN 3 747 #define SCTP_NOTIFY_INTERFACE_UP 4 748 #define SCTP_NOTIFY_DG_FAIL 5 749 #define SCTP_NOTIFY_STRDATA_ERR 6 750 #define SCTP_NOTIFY_ASSOC_ABORTED 7 751 #define SCTP_NOTIFY_PEER_OPENED_STREAM 8 752 #define SCTP_NOTIFY_STREAM_OPENED_OK 9 753 #define SCTP_NOTIFY_ASSOC_RESTART 10 754 #define SCTP_NOTIFY_HB_RESP 11 755 #define SCTP_NOTIFY_ASCONF_SUCCESS 12 756 #define SCTP_NOTIFY_ASCONF_FAILED 13 757 #define SCTP_NOTIFY_PEER_SHUTDOWN 14 758 #define SCTP_NOTIFY_ASCONF_ADD_IP 15 759 #define SCTP_NOTIFY_ASCONF_DELETE_IP 16 760 #define SCTP_NOTIFY_ASCONF_SET_PRIMARY 17 761 #define SCTP_NOTIFY_PARTIAL_DELVIERY_INDICATION 18 762 #define SCTP_NOTIFY_INTERFACE_CONFIRMED 20 763 #define SCTP_NOTIFY_STR_RESET_RECV 21 764 #define SCTP_NOTIFY_STR_RESET_SEND 22 765 #define SCTP_NOTIFY_STR_RESET_FAILED_OUT 23 766 #define SCTP_NOTIFY_STR_RESET_FAILED_IN 24 767 #define SCTP_NOTIFY_AUTH_NEW_KEY 25 768 #define SCTP_NOTIFY_AUTH_FREE_KEY 26 769 #define SCTP_NOTIFY_SPECIAL_SP_FAIL 27 770 #define SCTP_NOTIFY_NO_PEER_AUTH 28 771 #define SCTP_NOTIFY_SENDER_DRY 29 772 #define SCTP_NOTIFY_STR_RESET_ADD_OK 30 773 #define SCTP_NOTIFY_STR_RESET_ADD_FAIL 31 774 #define SCTP_NOTIFY_STR_RESET_INSTREAM_ADD_OK 32 775 #define SCTP_NOTIFY_MAX 32 776 777 778 /* This is the value for messages that are NOT completely 779 * copied down where we will start to split the message. 780 * So, with our default, we split only if the piece we 781 * want to take will fill up a full MTU (assuming 782 * a 1500 byte MTU). 783 */ 784 #define SCTP_DEFAULT_SPLIT_POINT_MIN 2904 785 786 /* ABORT CODES and other tell-tale location 787 * codes are generated by adding the below 788 * to the instance id. 789 */ 790 791 /* File defines */ 792 #define SCTP_FROM_SCTP_INPUT 0x10000000 793 #define SCTP_FROM_SCTP_PCB 0x20000000 794 #define SCTP_FROM_SCTP_INDATA 0x30000000 795 #define SCTP_FROM_SCTP_TIMER 0x40000000 796 #define SCTP_FROM_SCTP_USRREQ 0x50000000 797 #define SCTP_FROM_SCTPUTIL 0x60000000 798 #define SCTP_FROM_SCTP6_USRREQ 0x70000000 799 #define SCTP_FROM_SCTP_ASCONF 0x80000000 800 #define SCTP_FROM_SCTP_OUTPUT 0x90000000 801 #define SCTP_FROM_SCTP_PEELOFF 0xa0000000 802 #define SCTP_FROM_SCTP_PANDA 0xb0000000 803 #define SCTP_FROM_SCTP_SYSCTL 0xc0000000 804 805 /* Location ID's */ 806 #define SCTP_LOC_1 0x00000001 807 #define SCTP_LOC_2 0x00000002 808 #define SCTP_LOC_3 0x00000003 809 #define SCTP_LOC_4 0x00000004 810 #define SCTP_LOC_5 0x00000005 811 #define SCTP_LOC_6 0x00000006 812 #define SCTP_LOC_7 0x00000007 813 #define SCTP_LOC_8 0x00000008 814 #define SCTP_LOC_9 0x00000009 815 #define SCTP_LOC_10 0x0000000a 816 #define SCTP_LOC_11 0x0000000b 817 #define SCTP_LOC_12 0x0000000c 818 #define SCTP_LOC_13 0x0000000d 819 #define SCTP_LOC_14 0x0000000e 820 #define SCTP_LOC_15 0x0000000f 821 #define SCTP_LOC_16 0x00000010 822 #define SCTP_LOC_17 0x00000011 823 #define SCTP_LOC_18 0x00000012 824 #define SCTP_LOC_19 0x00000013 825 #define SCTP_LOC_20 0x00000014 826 #define SCTP_LOC_21 0x00000015 827 #define SCTP_LOC_22 0x00000016 828 #define SCTP_LOC_23 0x00000017 829 #define SCTP_LOC_24 0x00000018 830 #define SCTP_LOC_25 0x00000019 831 #define SCTP_LOC_26 0x0000001a 832 #define SCTP_LOC_27 0x0000001b 833 #define SCTP_LOC_28 0x0000001c 834 #define SCTP_LOC_29 0x0000001d 835 #define SCTP_LOC_30 0x0000001e 836 #define SCTP_LOC_31 0x0000001f 837 #define SCTP_LOC_32 0x00000020 838 #define SCTP_LOC_33 0x00000021 839 840 841 /* Free assoc codes */ 842 #define SCTP_NORMAL_PROC 0 843 #define SCTP_PCBFREE_NOFORCE 1 844 #define SCTP_PCBFREE_FORCE 2 845 846 /* From codes for adding addresses */ 847 #define SCTP_ADDR_IS_CONFIRMED 8 848 #define SCTP_ADDR_DYNAMIC_ADDED 6 849 #define SCTP_IN_COOKIE_PROC 100 850 #define SCTP_ALLOC_ASOC 1 851 #define SCTP_LOAD_ADDR_2 2 852 #define SCTP_LOAD_ADDR_3 3 853 #define SCTP_LOAD_ADDR_4 4 854 #define SCTP_LOAD_ADDR_5 5 855 856 #define SCTP_DONOT_SETSCOPE 0 857 #define SCTP_DO_SETSCOPE 1 858 859 860 /* This value determines the default for when 861 * we try to add more on the send queue., if 862 * there is room. This prevents us from cycling 863 * into the copy_resume routine to often if 864 * we have not got enough space to add a decent 865 * enough size message. Note that if we have enough 866 * space to complete the message copy we will always 867 * add to the message, no matter what the size. Its 868 * only when we reach the point that we have some left 869 * to add, there is only room for part of it that we 870 * will use this threshold. Its also a sysctl. 871 */ 872 #define SCTP_DEFAULT_ADD_MORE 1452 873 874 #ifndef SCTP_PCBHASHSIZE 875 /* default number of association hash buckets in each endpoint */ 876 #define SCTP_PCBHASHSIZE 256 877 #endif 878 #ifndef SCTP_TCBHASHSIZE 879 #define SCTP_TCBHASHSIZE 1024 880 #endif 881 882 #ifndef SCTP_CHUNKQUEUE_SCALE 883 #define SCTP_CHUNKQUEUE_SCALE 10 884 #endif 885 886 /* clock variance is 1 ms */ 887 #define SCTP_CLOCK_GRANULARITY 1 888 #define IP_HDR_SIZE 40 /* we use the size of a IP6 header here this 889 * detracts a small amount for ipv4 but it 890 * simplifies the ipv6 addition */ 891 892 /* Argument magic number for sctp_inpcb_free() */ 893 894 /* third argument */ 895 #define SCTP_CALLED_DIRECTLY_NOCMPSET 0 896 #define SCTP_CALLED_AFTER_CMPSET_OFCLOSE 1 897 #define SCTP_CALLED_FROM_INPKILL_TIMER 2 898 /* second argument */ 899 #define SCTP_FREE_SHOULD_USE_ABORT 1 900 #define SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE 0 901 902 #ifndef IPPROTO_SCTP 903 #define IPPROTO_SCTP 132 /* the Official IANA number :-) */ 904 #endif /* !IPPROTO_SCTP */ 905 906 #define SCTP_MAX_DATA_BUNDLING 256 907 908 /* modular comparison */ 909 /* True if a > b (mod = M) */ 910 #define compare_with_wrap(a, b, M) (((a > b) && ((a - b) < ((M >> 1) + 1))) || \ 911 ((b > a) && ((b - a) > ((M >> 1) + 1)))) 912 913 914 /* Mapping array manipulation routines */ 915 #define SCTP_IS_TSN_PRESENT(arry, gap) ((arry[(gap >> 3)] >> (gap & 0x07)) & 0x01) 916 #define SCTP_SET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] |= (0x01 << ((gap & 0x07)))) 917 #define SCTP_UNSET_TSN_PRESENT(arry, gap) (arry[(gap >> 3)] &= ((~(0x01 << ((gap & 0x07)))) & 0xff)) 918 #define SCTP_CALC_TSN_TO_GAP(gap, tsn, mapping_tsn) do { \ 919 if (tsn >= mapping_tsn) { \ 920 gap = tsn - mapping_tsn; \ 921 } else { \ 922 gap = (MAX_TSN - mapping_tsn) + tsn + 1; \ 923 } \ 924 } while(0) 925 926 927 #define SCTP_RETRAN_DONE -1 928 #define SCTP_RETRAN_EXIT -2 929 930 /* 931 * This value defines the number of vtag block time wait entry's per list 932 * element. Each entry will take 2 4 byte ints (and of course the overhead 933 * of the next pointer as well). Using 15 as an example will yield * ((8 * 934 * 15) + 8) or 128 bytes of overhead for each timewait block that gets 935 * initialized. Increasing it to 31 would yeild 256 bytes per block. 936 */ 937 #define SCTP_NUMBER_IN_VTAG_BLOCK 15 938 /* 939 * If we use the STACK option, we have an array of this size head pointers. 940 * This array is mod'd the with the size to find which bucket and then all 941 * entries must be searched to see if the tag is in timed wait. If so we 942 * reject it. 943 */ 944 #define SCTP_STACK_VTAG_HASH_SIZE 32 945 946 /* 947 * Number of seconds of time wait for a vtag. 948 */ 949 #define SCTP_TIME_WAIT 60 950 951 /* The system retains a cache of free chunks such to 952 * cut down on calls the memory allocation system. There 953 * is a per association limit of free items and a overall 954 * system limit. If either one gets hit then the resource 955 * stops being cached. 956 */ 957 958 #define SCTP_DEF_ASOC_RESC_LIMIT 10 959 #define SCTP_DEF_SYSTEM_RESC_LIMIT 1000 960 961 /*- 962 * defines for socket lock states. 963 * Used by __APPLE__ and SCTP_SO_LOCK_TESTING 964 */ 965 #define SCTP_SO_LOCKED 1 966 #define SCTP_SO_NOT_LOCKED 0 967 968 969 #define SCTP_HOLDS_LOCK 1 970 #define SCTP_NOT_LOCKED 0 971 972 /*- 973 * For address locks, do we hold the lock? 974 */ 975 #define SCTP_ADDR_LOCKED 1 976 #define SCTP_ADDR_NOT_LOCKED 0 977 978 #define IN4_ISPRIVATE_ADDRESS(a) \ 979 ((((uint8_t *)&(a)->s_addr)[0] == 10) || \ 980 ((((uint8_t *)&(a)->s_addr)[0] == 172) && \ 981 (((uint8_t *)&(a)->s_addr)[1] >= 16) && \ 982 (((uint8_t *)&(a)->s_addr)[1] <= 32)) || \ 983 ((((uint8_t *)&(a)->s_addr)[0] == 192) && \ 984 (((uint8_t *)&(a)->s_addr)[1] == 168))) 985 986 #define IN4_ISLOOPBACK_ADDRESS(a) \ 987 ((((uint8_t *)&(a)->s_addr)[0] == 127) && \ 988 (((uint8_t *)&(a)->s_addr)[1] == 0) && \ 989 (((uint8_t *)&(a)->s_addr)[2] == 0) && \ 990 (((uint8_t *)&(a)->s_addr)[3] == 1)) 991 992 993 #if defined(_KERNEL) 994 995 #define SCTP_GETTIME_TIMEVAL(x) (getmicrouptime(x)) 996 #define SCTP_GETPTIME_TIMEVAL(x) (microuptime(x)) 997 #endif 998 /*#if defined(__FreeBSD__) || defined(__APPLE__)*/ 999 /*#define SCTP_GETTIME_TIMEVAL(x) { \*/ 1000 /* (x)->tv_sec = ticks / 1000; \*/ 1001 /* (x)->tv_usec = (ticks % 1000) * 1000; \*/ 1002 /*}*/ 1003 1004 /*#else*/ 1005 /*#define SCTP_GETTIME_TIMEVAL(x) (microtime(x))*/ 1006 /*#endif __FreeBSD__ */ 1007 1008 #if defined(_KERNEL) || defined(__Userspace__) 1009 #define sctp_sowwakeup(inp, so) \ 1010 do { \ 1011 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1012 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \ 1013 } else { \ 1014 sowwakeup(so); \ 1015 } \ 1016 } while (0) 1017 1018 #define sctp_sowwakeup_locked(inp, so) \ 1019 do { \ 1020 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1021 SOCKBUF_UNLOCK(&((so)->so_snd)); \ 1022 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEOUTPUT; \ 1023 } else { \ 1024 sowwakeup_locked(so); \ 1025 } \ 1026 } while (0) 1027 1028 #define sctp_sorwakeup(inp, so) \ 1029 do { \ 1030 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1031 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \ 1032 } else { \ 1033 sorwakeup(so); \ 1034 } \ 1035 } while (0) 1036 1037 #define sctp_sorwakeup_locked(inp, so) \ 1038 do { \ 1039 if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { \ 1040 inp->sctp_flags |= SCTP_PCB_FLAGS_WAKEINPUT; \ 1041 SOCKBUF_UNLOCK(&((so)->so_rcv)); \ 1042 } else { \ 1043 sorwakeup_locked(so); \ 1044 } \ 1045 } while (0) 1046 1047 #endif /* _KERNEL || __Userspace__ */ 1048 #endif 1049