usrsctp.h (43474B)
1 /*- 2 * Copyright (c) 2009-2010 Brad Penoff 3 * Copyright (c) 2009-2010 Humaira Kamal 4 * Copyright (c) 2011-2012 Irene Ruengeler 5 * Copyright (c) 2011-2012 Michael Tuexen 6 * 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #ifndef __USRSCTP_H__ 32 #define __USRSCTP_H__ 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 #include <errno.h> 39 #include <sys/types.h> 40 #ifdef _WIN32 41 #ifdef _MSC_VER 42 #pragma warning(disable: 4200) 43 #endif 44 #include <winsock2.h> 45 #include <ws2tcpip.h> 46 #else 47 #include <sys/socket.h> 48 #include <netinet/in.h> 49 #endif 50 51 #ifndef MSG_NOTIFICATION 52 /* This definition MUST be in sync with usrsctplib/user_socketvar.h */ 53 #define MSG_NOTIFICATION 0x2000 54 #endif 55 56 #ifndef IPPROTO_SCTP 57 /* This is the IANA assigned protocol number of SCTP. */ 58 #define IPPROTO_SCTP 132 59 #endif 60 61 #ifdef _WIN32 62 #if defined(_MSC_VER) && _MSC_VER >= 1600 63 #include <stdint.h> 64 #elif defined(SCTP_STDINT_INCLUDE) 65 #include SCTP_STDINT_INCLUDE 66 #else 67 typedef unsigned __int8 uint8_t; 68 typedef unsigned __int16 uint16_t; 69 typedef unsigned __int32 uint32_t; 70 typedef unsigned __int64 uint64_t; 71 typedef __int16 int16_t; 72 typedef __int32 int32_t; 73 #endif 74 75 #ifndef ssize_t 76 #ifdef _WIN64 77 typedef __int64 ssize_t; 78 #elif defined _WIN32 79 typedef int ssize_t; 80 #else 81 #error "Unknown platform!" 82 #endif 83 #endif 84 85 #define MSG_EOR 0x8 86 #ifndef EWOULDBLOCK 87 #define EWOULDBLOCK WSAEWOULDBLOCK 88 #endif 89 #ifndef EINPROGRESS 90 #define EINPROGRESS WSAEINPROGRESS 91 #endif 92 #define SHUT_RD 1 93 #define SHUT_WR 2 94 #define SHUT_RDWR 3 95 #endif 96 97 typedef uint32_t sctp_assoc_t; 98 99 #if defined(_WIN32) && defined(_MSC_VER) 100 #pragma pack (push, 1) 101 #define SCTP_PACKED 102 #else 103 #define SCTP_PACKED __attribute__((packed)) 104 #endif 105 106 struct sctp_common_header { 107 uint16_t source_port; 108 uint16_t destination_port; 109 uint32_t verification_tag; 110 uint32_t crc32c; 111 } SCTP_PACKED; 112 113 #if defined(_WIN32) && defined(_MSC_VER) 114 #pragma pack(pop) 115 #endif 116 #undef SCTP_PACKED 117 118 #define AF_CONN 123 119 /* The definition of struct sockaddr_conn MUST be in 120 * tune with other sockaddr_* structures. 121 */ 122 #if defined(__APPLE__) || defined(__Bitrig__) || defined(__DragonFly__) || \ 123 defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) 124 struct sockaddr_conn { 125 uint8_t sconn_len; 126 uint8_t sconn_family; 127 uint16_t sconn_port; 128 void *sconn_addr; 129 }; 130 #else 131 struct sockaddr_conn { 132 uint16_t sconn_family; 133 uint16_t sconn_port; 134 void *sconn_addr; 135 }; 136 #endif 137 138 union sctp_sockstore { 139 struct sockaddr_in sin; 140 struct sockaddr_in6 sin6; 141 struct sockaddr_conn sconn; 142 struct sockaddr sa; 143 }; 144 145 #define SCTP_FUTURE_ASSOC 0 146 #define SCTP_CURRENT_ASSOC 1 147 #define SCTP_ALL_ASSOC 2 148 149 #define SCTP_EVENT_READ 0x0001 150 #define SCTP_EVENT_WRITE 0x0002 151 #define SCTP_EVENT_ERROR 0x0004 152 153 /*** Structures and definitions to use the socket API ***/ 154 155 #define SCTP_ALIGN_RESV_PAD 92 156 #define SCTP_ALIGN_RESV_PAD_SHORT 76 157 158 struct sctp_rcvinfo { 159 uint16_t rcv_sid; 160 uint16_t rcv_ssn; 161 uint16_t rcv_flags; 162 uint32_t rcv_ppid; 163 uint32_t rcv_tsn; 164 uint32_t rcv_cumtsn; 165 uint32_t rcv_context; 166 sctp_assoc_t rcv_assoc_id; 167 }; 168 169 struct sctp_nxtinfo { 170 uint16_t nxt_sid; 171 uint16_t nxt_flags; 172 uint32_t nxt_ppid; 173 uint32_t nxt_length; 174 sctp_assoc_t nxt_assoc_id; 175 }; 176 177 #define SCTP_NO_NEXT_MSG 0x0000 178 #define SCTP_NEXT_MSG_AVAIL 0x0001 179 #define SCTP_NEXT_MSG_ISCOMPLETE 0x0002 180 #define SCTP_NEXT_MSG_IS_UNORDERED 0x0004 181 #define SCTP_NEXT_MSG_IS_NOTIFICATION 0x0008 182 183 struct sctp_recvv_rn { 184 struct sctp_rcvinfo recvv_rcvinfo; 185 struct sctp_nxtinfo recvv_nxtinfo; 186 }; 187 188 #define SCTP_RECVV_NOINFO 0 189 #define SCTP_RECVV_RCVINFO 1 190 #define SCTP_RECVV_NXTINFO 2 191 #define SCTP_RECVV_RN 3 192 193 #define SCTP_SENDV_NOINFO 0 194 #define SCTP_SENDV_SNDINFO 1 195 #define SCTP_SENDV_PRINFO 2 196 #define SCTP_SENDV_AUTHINFO 3 197 #define SCTP_SENDV_SPA 4 198 199 #define SCTP_SEND_SNDINFO_VALID 0x00000001 200 #define SCTP_SEND_PRINFO_VALID 0x00000002 201 #define SCTP_SEND_AUTHINFO_VALID 0x00000004 202 203 struct sctp_snd_all_completes { 204 uint16_t sall_stream; 205 uint16_t sall_flags; 206 uint32_t sall_ppid; 207 uint32_t sall_context; 208 uint32_t sall_num_sent; 209 uint32_t sall_num_failed; 210 }; 211 212 struct sctp_sndinfo { 213 uint16_t snd_sid; 214 uint16_t snd_flags; 215 uint32_t snd_ppid; 216 uint32_t snd_context; 217 sctp_assoc_t snd_assoc_id; 218 }; 219 220 struct sctp_prinfo { 221 uint16_t pr_policy; 222 uint32_t pr_value; 223 }; 224 225 struct sctp_authinfo { 226 uint16_t auth_keynumber; 227 }; 228 229 struct sctp_sendv_spa { 230 uint32_t sendv_flags; 231 struct sctp_sndinfo sendv_sndinfo; 232 struct sctp_prinfo sendv_prinfo; 233 struct sctp_authinfo sendv_authinfo; 234 }; 235 236 struct sctp_udpencaps { 237 struct sockaddr_storage sue_address; 238 uint32_t sue_assoc_id; 239 uint16_t sue_port; 240 }; 241 242 /******** Notifications **************/ 243 244 /* notification types */ 245 #define SCTP_ASSOC_CHANGE 0x0001 246 #define SCTP_PEER_ADDR_CHANGE 0x0002 247 #define SCTP_REMOTE_ERROR 0x0003 248 #define SCTP_SEND_FAILED 0x0004 249 #define SCTP_SHUTDOWN_EVENT 0x0005 250 #define SCTP_ADAPTATION_INDICATION 0x0006 251 #define SCTP_PARTIAL_DELIVERY_EVENT 0x0007 252 #define SCTP_AUTHENTICATION_EVENT 0x0008 253 #define SCTP_STREAM_RESET_EVENT 0x0009 254 #define SCTP_SENDER_DRY_EVENT 0x000a 255 #define SCTP_NOTIFICATIONS_STOPPED_EVENT 0x000b 256 #define SCTP_ASSOC_RESET_EVENT 0x000c 257 #define SCTP_STREAM_CHANGE_EVENT 0x000d 258 #define SCTP_SEND_FAILED_EVENT 0x000e 259 260 /* notification event structures */ 261 262 263 /* association change event */ 264 struct sctp_assoc_change { 265 uint16_t sac_type; 266 uint16_t sac_flags; 267 uint32_t sac_length; 268 uint16_t sac_state; 269 uint16_t sac_error; 270 uint16_t sac_outbound_streams; 271 uint16_t sac_inbound_streams; 272 sctp_assoc_t sac_assoc_id; 273 uint8_t sac_info[]; /* not available yet */ 274 }; 275 276 /* sac_state values */ 277 #define SCTP_COMM_UP 0x0001 278 #define SCTP_COMM_LOST 0x0002 279 #define SCTP_RESTART 0x0003 280 #define SCTP_SHUTDOWN_COMP 0x0004 281 #define SCTP_CANT_STR_ASSOC 0x0005 282 283 /* sac_info values */ 284 #define SCTP_ASSOC_SUPPORTS_PR 0x01 285 #define SCTP_ASSOC_SUPPORTS_AUTH 0x02 286 #define SCTP_ASSOC_SUPPORTS_ASCONF 0x03 287 #define SCTP_ASSOC_SUPPORTS_MULTIBUF 0x04 288 #define SCTP_ASSOC_SUPPORTS_RE_CONFIG 0x05 289 #define SCTP_ASSOC_SUPPORTS_INTERLEAVING 0x06 290 #define SCTP_ASSOC_SUPPORTS_MAX 0x06 291 292 /* Address event */ 293 struct sctp_paddr_change { 294 uint16_t spc_type; 295 uint16_t spc_flags; 296 uint32_t spc_length; 297 struct sockaddr_storage spc_aaddr; 298 uint32_t spc_state; 299 uint32_t spc_error; 300 sctp_assoc_t spc_assoc_id; 301 uint8_t spc_padding[4]; 302 }; 303 304 /* paddr state values */ 305 #define SCTP_ADDR_AVAILABLE 0x0001 306 #define SCTP_ADDR_UNREACHABLE 0x0002 307 #define SCTP_ADDR_REMOVED 0x0003 308 #define SCTP_ADDR_ADDED 0x0004 309 #define SCTP_ADDR_MADE_PRIM 0x0005 310 #define SCTP_ADDR_CONFIRMED 0x0006 311 312 /* remote error events */ 313 struct sctp_remote_error { 314 uint16_t sre_type; 315 uint16_t sre_flags; 316 uint32_t sre_length; 317 uint16_t sre_error; 318 sctp_assoc_t sre_assoc_id; 319 uint8_t sre_data[]; 320 }; 321 322 /* shutdown event */ 323 struct sctp_shutdown_event { 324 uint16_t sse_type; 325 uint16_t sse_flags; 326 uint32_t sse_length; 327 sctp_assoc_t sse_assoc_id; 328 }; 329 330 /* Adaptation layer indication */ 331 struct sctp_adaptation_event { 332 uint16_t sai_type; 333 uint16_t sai_flags; 334 uint32_t sai_length; 335 uint32_t sai_adaptation_ind; 336 sctp_assoc_t sai_assoc_id; 337 }; 338 339 /* Partial delivery event */ 340 struct sctp_pdapi_event { 341 uint16_t pdapi_type; 342 uint16_t pdapi_flags; 343 uint32_t pdapi_length; 344 uint32_t pdapi_indication; 345 uint32_t pdapi_stream; 346 uint32_t pdapi_seq; 347 sctp_assoc_t pdapi_assoc_id; 348 }; 349 350 /* indication values */ 351 #define SCTP_PARTIAL_DELIVERY_ABORTED 0x0001 352 353 /* SCTP authentication event */ 354 struct sctp_authkey_event { 355 uint16_t auth_type; 356 uint16_t auth_flags; 357 uint32_t auth_length; 358 uint16_t auth_keynumber; 359 uint32_t auth_indication; 360 sctp_assoc_t auth_assoc_id; 361 }; 362 363 /* indication values */ 364 #define SCTP_AUTH_NEW_KEY 0x0001 365 #define SCTP_AUTH_NO_AUTH 0x0002 366 #define SCTP_AUTH_FREE_KEY 0x0003 367 368 /* SCTP sender dry event */ 369 struct sctp_sender_dry_event { 370 uint16_t sender_dry_type; 371 uint16_t sender_dry_flags; 372 uint32_t sender_dry_length; 373 sctp_assoc_t sender_dry_assoc_id; 374 }; 375 376 377 /* Stream reset event - subscribe to SCTP_STREAM_RESET_EVENT */ 378 struct sctp_stream_reset_event { 379 uint16_t strreset_type; 380 uint16_t strreset_flags; 381 uint32_t strreset_length; 382 sctp_assoc_t strreset_assoc_id; 383 uint16_t strreset_stream_list[]; 384 }; 385 386 /* flags in stream_reset_event (strreset_flags) */ 387 #define SCTP_STREAM_RESET_INCOMING_SSN 0x0001 388 #define SCTP_STREAM_RESET_OUTGOING_SSN 0x0002 389 #define SCTP_STREAM_RESET_DENIED 0x0004 /* SCTP_STRRESET_FAILED */ 390 #define SCTP_STREAM_RESET_FAILED 0x0008 /* SCTP_STRRESET_FAILED */ 391 #define SCTP_STREAM_CHANGED_DENIED 0x0010 392 393 #define SCTP_STREAM_RESET_INCOMING 0x00000001 394 #define SCTP_STREAM_RESET_OUTGOING 0x00000002 395 396 397 /* Assoc reset event - subscribe to SCTP_ASSOC_RESET_EVENT */ 398 struct sctp_assoc_reset_event { 399 uint16_t assocreset_type; 400 uint16_t assocreset_flags; 401 uint32_t assocreset_length; 402 sctp_assoc_t assocreset_assoc_id; 403 uint32_t assocreset_local_tsn; 404 uint32_t assocreset_remote_tsn; 405 }; 406 407 #define SCTP_ASSOC_RESET_DENIED 0x0004 408 #define SCTP_ASSOC_RESET_FAILED 0x0008 409 410 411 /* Stream change event - subscribe to SCTP_STREAM_CHANGE_EVENT */ 412 struct sctp_stream_change_event { 413 uint16_t strchange_type; 414 uint16_t strchange_flags; 415 uint32_t strchange_length; 416 sctp_assoc_t strchange_assoc_id; 417 uint16_t strchange_instrms; 418 uint16_t strchange_outstrms; 419 }; 420 421 #define SCTP_STREAM_CHANGE_DENIED 0x0004 422 #define SCTP_STREAM_CHANGE_FAILED 0x0008 423 424 425 /* SCTP send failed event */ 426 struct sctp_send_failed_event { 427 uint16_t ssfe_type; 428 uint16_t ssfe_flags; 429 uint32_t ssfe_length; 430 uint32_t ssfe_error; 431 struct sctp_sndinfo ssfe_info; 432 sctp_assoc_t ssfe_assoc_id; 433 uint8_t ssfe_data[]; 434 }; 435 436 /* flag that indicates state of data */ 437 #define SCTP_DATA_UNSENT 0x0001 /* inqueue never on wire */ 438 #define SCTP_DATA_SENT 0x0002 /* on wire at failure */ 439 440 /* SCTP event option */ 441 struct sctp_event { 442 sctp_assoc_t se_assoc_id; 443 uint16_t se_type; 444 uint8_t se_on; 445 }; 446 447 union sctp_notification { 448 struct sctp_tlv { 449 uint16_t sn_type; 450 uint16_t sn_flags; 451 uint32_t sn_length; 452 } sn_header; 453 struct sctp_assoc_change sn_assoc_change; 454 struct sctp_paddr_change sn_paddr_change; 455 struct sctp_remote_error sn_remote_error; 456 struct sctp_shutdown_event sn_shutdown_event; 457 struct sctp_adaptation_event sn_adaptation_event; 458 struct sctp_pdapi_event sn_pdapi_event; 459 struct sctp_authkey_event sn_auth_event; 460 struct sctp_sender_dry_event sn_sender_dry_event; 461 struct sctp_send_failed_event sn_send_failed_event; 462 struct sctp_stream_reset_event sn_strreset_event; 463 struct sctp_assoc_reset_event sn_assocreset_event; 464 struct sctp_stream_change_event sn_strchange_event; 465 }; 466 467 struct sctp_event_subscribe { 468 uint8_t sctp_data_io_event; 469 uint8_t sctp_association_event; 470 uint8_t sctp_address_event; 471 uint8_t sctp_send_failure_event; 472 uint8_t sctp_peer_error_event; 473 uint8_t sctp_shutdown_event; 474 uint8_t sctp_partial_delivery_event; 475 uint8_t sctp_adaptation_layer_event; 476 uint8_t sctp_authentication_event; 477 uint8_t sctp_sender_dry_event; 478 uint8_t sctp_stream_reset_event; 479 }; 480 481 482 483 /* Flags that go into the sinfo->sinfo_flags field */ 484 #define SCTP_DATA_LAST_FRAG 0x0001 /* tail part of the message could not be sent */ 485 #define SCTP_DATA_NOT_FRAG 0x0003 /* complete message could not be sent */ 486 #define SCTP_NOTIFICATION 0x0010 /* next message is a notification */ 487 #define SCTP_COMPLETE 0x0020 /* next message is complete */ 488 #define SCTP_EOF 0x0100 /* Start shutdown procedures */ 489 #define SCTP_ABORT 0x0200 /* Send an ABORT to peer */ 490 #define SCTP_UNORDERED 0x0400 /* Message is un-ordered */ 491 #define SCTP_ADDR_OVER 0x0800 /* Override the primary-address */ 492 #define SCTP_SENDALL 0x1000 /* Send this on all associations */ 493 #define SCTP_EOR 0x2000 /* end of message signal */ 494 #define SCTP_SACK_IMMEDIATELY 0x4000 /* Set I-Bit */ 495 496 #define INVALID_SINFO_FLAG(x) (((x) & 0xfffffff0 \ 497 & ~(SCTP_EOF | SCTP_ABORT | SCTP_UNORDERED |\ 498 SCTP_ADDR_OVER | SCTP_SENDALL | SCTP_EOR |\ 499 SCTP_SACK_IMMEDIATELY)) != 0) 500 /* for the endpoint */ 501 502 /* The lower byte is an enumeration of PR-SCTP policies */ 503 #define SCTP_PR_SCTP_NONE 0x0000 /* Reliable transfer */ 504 #define SCTP_PR_SCTP_TTL 0x0001 /* Time based PR-SCTP */ 505 #define SCTP_PR_SCTP_BUF 0x0002 /* Buffer based PR-SCTP */ 506 #define SCTP_PR_SCTP_RTX 0x0003 /* Number of retransmissions based PR-SCTP */ 507 508 #define PR_SCTP_POLICY(x) ((x) & 0x0f) 509 #define PR_SCTP_ENABLED(x) (PR_SCTP_POLICY(x) != SCTP_PR_SCTP_NONE) 510 #define PR_SCTP_TTL_ENABLED(x) (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_TTL) 511 #define PR_SCTP_BUF_ENABLED(x) (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_BUF) 512 #define PR_SCTP_RTX_ENABLED(x) (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_RTX) 513 #define PR_SCTP_INVALID_POLICY(x) (PR_SCTP_POLICY(x) > SCTP_PR_SCTP_RTX) 514 515 516 /* 517 * user socket options: socket API defined 518 */ 519 /* 520 * read-write options 521 */ 522 #define SCTP_RTOINFO 0x00000001 523 #define SCTP_ASSOCINFO 0x00000002 524 #define SCTP_INITMSG 0x00000003 525 #define SCTP_NODELAY 0x00000004 526 #define SCTP_AUTOCLOSE 0x00000005 527 #define SCTP_PRIMARY_ADDR 0x00000007 528 #define SCTP_ADAPTATION_LAYER 0x00000008 529 #define SCTP_DISABLE_FRAGMENTS 0x00000009 530 #define SCTP_PEER_ADDR_PARAMS 0x0000000a 531 /* ancillary data/notification interest options */ 532 /* Without this applied we will give V4 and V6 addresses on a V6 socket */ 533 #define SCTP_I_WANT_MAPPED_V4_ADDR 0x0000000d 534 #define SCTP_MAXSEG 0x0000000e 535 #define SCTP_DELAYED_SACK 0x0000000f 536 #define SCTP_FRAGMENT_INTERLEAVE 0x00000010 537 #define SCTP_PARTIAL_DELIVERY_POINT 0x00000011 538 /* authentication support */ 539 #define SCTP_HMAC_IDENT 0x00000014 540 #define SCTP_AUTH_ACTIVE_KEY 0x00000015 541 #define SCTP_AUTO_ASCONF 0x00000018 542 #define SCTP_MAX_BURST 0x00000019 543 /* assoc level context */ 544 #define SCTP_CONTEXT 0x0000001a 545 /* explicit EOR signalling */ 546 #define SCTP_EXPLICIT_EOR 0x0000001b 547 #define SCTP_REUSE_PORT 0x0000001c 548 549 #define SCTP_EVENT 0x0000001e 550 #define SCTP_RECVRCVINFO 0x0000001f 551 #define SCTP_RECVNXTINFO 0x00000020 552 #define SCTP_DEFAULT_SNDINFO 0x00000021 553 #define SCTP_DEFAULT_PRINFO 0x00000022 554 #define SCTP_REMOTE_UDP_ENCAPS_PORT 0x00000024 555 #define SCTP_ECN_SUPPORTED 0x00000025 556 #define SCTP_PR_SUPPORTED 0x00000026 557 #define SCTP_AUTH_SUPPORTED 0x00000027 558 #define SCTP_ASCONF_SUPPORTED 0x00000028 559 #define SCTP_RECONFIG_SUPPORTED 0x00000029 560 #define SCTP_NRSACK_SUPPORTED 0x00000030 561 #define SCTP_PKTDROP_SUPPORTED 0x00000031 562 #define SCTP_MAX_CWND 0x00000032 563 #define SCTP_ACCEPT_ZERO_CHECKSUM 0x00000033 564 565 #define SCTP_ENABLE_STREAM_RESET 0x00000900 /* struct sctp_assoc_value */ 566 567 /* Pluggable Stream Scheduling Socket option */ 568 #define SCTP_PLUGGABLE_SS 0x00001203 569 #define SCTP_SS_VALUE 0x00001204 570 571 /* For I-DATA */ 572 #define SCTP_INTERLEAVING_SUPPORTED 0x00001206 573 574 /* 575 * read-only options 576 */ 577 #define SCTP_STATUS 0x00000100 578 #define SCTP_GET_PEER_ADDR_INFO 0x00000101 579 /* authentication support */ 580 #define SCTP_PEER_AUTH_CHUNKS 0x00000102 581 #define SCTP_LOCAL_AUTH_CHUNKS 0x00000103 582 #define SCTP_GET_ASSOC_NUMBER 0x00000104 583 #define SCTP_GET_ASSOC_ID_LIST 0x00000105 584 #define SCTP_TIMEOUTS 0x00000106 585 #define SCTP_PR_STREAM_STATUS 0x00000107 586 #define SCTP_PR_ASSOC_STATUS 0x00000108 587 588 /* 589 * write-only options 590 */ 591 #define SCTP_SET_PEER_PRIMARY_ADDR 0x00000006 592 #define SCTP_AUTH_CHUNK 0x00000012 593 #define SCTP_AUTH_KEY 0x00000013 594 #define SCTP_AUTH_DEACTIVATE_KEY 0x0000001d 595 #define SCTP_AUTH_DELETE_KEY 0x00000016 596 #define SCTP_RESET_STREAMS 0x00000901 /* struct sctp_reset_streams */ 597 #define SCTP_RESET_ASSOC 0x00000902 /* sctp_assoc_t */ 598 #define SCTP_ADD_STREAMS 0x00000903 /* struct sctp_add_streams */ 599 600 struct sctp_initmsg { 601 uint16_t sinit_num_ostreams; 602 uint16_t sinit_max_instreams; 603 uint16_t sinit_max_attempts; 604 uint16_t sinit_max_init_timeo; 605 }; 606 607 struct sctp_rtoinfo { 608 sctp_assoc_t srto_assoc_id; 609 uint32_t srto_initial; 610 uint32_t srto_max; 611 uint32_t srto_min; 612 }; 613 614 struct sctp_assocparams { 615 sctp_assoc_t sasoc_assoc_id; 616 uint32_t sasoc_peer_rwnd; 617 uint32_t sasoc_local_rwnd; 618 uint32_t sasoc_cookie_life; 619 uint16_t sasoc_asocmaxrxt; 620 uint16_t sasoc_number_peer_destinations; 621 }; 622 623 struct sctp_setprim { 624 struct sockaddr_storage ssp_addr; 625 sctp_assoc_t ssp_assoc_id; 626 uint8_t ssp_padding[4]; 627 }; 628 629 struct sctp_setadaptation { 630 uint32_t ssb_adaptation_ind; 631 }; 632 633 struct sctp_paddrparams { 634 struct sockaddr_storage spp_address; 635 sctp_assoc_t spp_assoc_id; 636 uint32_t spp_hbinterval; 637 uint32_t spp_pathmtu; 638 uint32_t spp_flags; 639 uint32_t spp_ipv6_flowlabel; 640 uint16_t spp_pathmaxrxt; 641 uint8_t spp_dscp; 642 }; 643 644 #define SPP_HB_ENABLE 0x00000001 645 #define SPP_HB_DISABLE 0x00000002 646 #define SPP_HB_DEMAND 0x00000004 647 #define SPP_PMTUD_ENABLE 0x00000008 648 #define SPP_PMTUD_DISABLE 0x00000010 649 #define SPP_HB_TIME_IS_ZERO 0x00000080 650 #define SPP_IPV6_FLOWLABEL 0x00000100 651 #define SPP_DSCP 0x00000200 652 653 /* Used for SCTP_MAXSEG, SCTP_MAX_BURST, SCTP_ENABLE_STREAM_RESET, and SCTP_CONTEXT */ 654 struct sctp_assoc_value { 655 sctp_assoc_t assoc_id; 656 uint32_t assoc_value; 657 }; 658 659 /* To enable stream reset */ 660 #define SCTP_ENABLE_RESET_STREAM_REQ 0x00000001 661 #define SCTP_ENABLE_RESET_ASSOC_REQ 0x00000002 662 #define SCTP_ENABLE_CHANGE_ASSOC_REQ 0x00000004 663 #define SCTP_ENABLE_VALUE_MASK 0x00000007 664 665 struct sctp_reset_streams { 666 sctp_assoc_t srs_assoc_id; 667 uint16_t srs_flags; 668 uint16_t srs_number_streams; /* 0 == ALL */ 669 uint16_t srs_stream_list[]; /* list if strrst_num_streams is not 0 */ 670 }; 671 672 struct sctp_add_streams { 673 sctp_assoc_t sas_assoc_id; 674 uint16_t sas_instrms; 675 uint16_t sas_outstrms; 676 }; 677 678 struct sctp_hmacalgo { 679 uint32_t shmac_number_of_idents; 680 uint16_t shmac_idents[]; 681 }; 682 683 /* AUTH hmac_id */ 684 #define SCTP_AUTH_HMAC_ID_RSVD 0x0000 685 #define SCTP_AUTH_HMAC_ID_SHA1 0x0001 /* default, mandatory */ 686 #define SCTP_AUTH_HMAC_ID_SHA256 0x0003 687 #define SCTP_AUTH_HMAC_ID_SHA224 0x0004 688 #define SCTP_AUTH_HMAC_ID_SHA384 0x0005 689 #define SCTP_AUTH_HMAC_ID_SHA512 0x0006 690 691 692 struct sctp_sack_info { 693 sctp_assoc_t sack_assoc_id; 694 uint32_t sack_delay; 695 uint32_t sack_freq; 696 }; 697 698 struct sctp_default_prinfo { 699 uint16_t pr_policy; 700 uint32_t pr_value; 701 sctp_assoc_t pr_assoc_id; 702 }; 703 704 struct sctp_paddrinfo { 705 struct sockaddr_storage spinfo_address; 706 sctp_assoc_t spinfo_assoc_id; 707 int32_t spinfo_state; 708 uint32_t spinfo_cwnd; 709 uint32_t spinfo_srtt; 710 uint32_t spinfo_rto; 711 uint32_t spinfo_mtu; 712 }; 713 714 struct sctp_status { 715 sctp_assoc_t sstat_assoc_id; 716 int32_t sstat_state; 717 uint32_t sstat_rwnd; 718 uint16_t sstat_unackdata; 719 uint16_t sstat_penddata; 720 uint16_t sstat_instrms; 721 uint16_t sstat_outstrms; 722 uint32_t sstat_fragmentation_point; 723 struct sctp_paddrinfo sstat_primary; 724 }; 725 726 /* 727 * user state values 728 */ 729 #define SCTP_CLOSED 0x0000 730 #define SCTP_BOUND 0x1000 731 #define SCTP_LISTEN 0x2000 732 #define SCTP_COOKIE_WAIT 0x0002 733 #define SCTP_COOKIE_ECHOED 0x0004 734 #define SCTP_ESTABLISHED 0x0008 735 #define SCTP_SHUTDOWN_SENT 0x0010 736 #define SCTP_SHUTDOWN_RECEIVED 0x0020 737 #define SCTP_SHUTDOWN_ACK_SENT 0x0040 738 #define SCTP_SHUTDOWN_PENDING 0x0080 739 740 741 #define SCTP_ACTIVE 0x0001 /* SCTP_ADDR_REACHABLE */ 742 #define SCTP_INACTIVE 0x0002 /* neither SCTP_ADDR_REACHABLE 743 nor SCTP_ADDR_UNCONFIRMED */ 744 #define SCTP_UNCONFIRMED 0x0200 /* SCTP_ADDR_UNCONFIRMED */ 745 746 struct sctp_authchunks { 747 sctp_assoc_t gauth_assoc_id; 748 /* uint32_t gauth_number_of_chunks; not available */ 749 uint8_t gauth_chunks[]; 750 }; 751 752 struct sctp_assoc_ids { 753 uint32_t gaids_number_of_ids; 754 sctp_assoc_t gaids_assoc_id[]; 755 }; 756 757 struct sctp_setpeerprim { 758 struct sockaddr_storage sspp_addr; 759 sctp_assoc_t sspp_assoc_id; 760 uint8_t sspp_padding[4]; 761 }; 762 763 struct sctp_authchunk { 764 uint8_t sauth_chunk; 765 }; 766 767 768 struct sctp_get_nonce_values { 769 sctp_assoc_t gn_assoc_id; 770 uint32_t gn_peers_tag; 771 uint32_t gn_local_tag; 772 }; 773 774 /* Values for SCTP_ACCEPT_ZERO_CHECKSUM */ 775 #define SCTP_EDMID_NONE 0 776 #define SCTP_EDMID_LOWER_LAYER_DTLS 1 777 778 779 /* 780 * Main SCTP chunk types 781 */ 782 /************0x00 series ***********/ 783 #define SCTP_DATA 0x00 784 #define SCTP_INITIATION 0x01 785 #define SCTP_INITIATION_ACK 0x02 786 #define SCTP_SELECTIVE_ACK 0x03 787 #define SCTP_HEARTBEAT_REQUEST 0x04 788 #define SCTP_HEARTBEAT_ACK 0x05 789 #define SCTP_ABORT_ASSOCIATION 0x06 790 #define SCTP_SHUTDOWN 0x07 791 #define SCTP_SHUTDOWN_ACK 0x08 792 #define SCTP_OPERATION_ERROR 0x09 793 #define SCTP_COOKIE_ECHO 0x0a 794 #define SCTP_COOKIE_ACK 0x0b 795 #define SCTP_ECN_ECHO 0x0c 796 #define SCTP_ECN_CWR 0x0d 797 #define SCTP_SHUTDOWN_COMPLETE 0x0e 798 /* RFC4895 */ 799 #define SCTP_AUTHENTICATION 0x0f 800 /* EY nr_sack chunk id*/ 801 #define SCTP_NR_SELECTIVE_ACK 0x10 802 /************0x40 series ***********/ 803 /************0x80 series ***********/ 804 /* RFC5061 */ 805 #define SCTP_ASCONF_ACK 0x80 806 /* draft-ietf-stewart-pktdrpsctp */ 807 #define SCTP_PACKET_DROPPED 0x81 808 /* draft-ietf-stewart-strreset-xxx */ 809 #define SCTP_STREAM_RESET 0x82 810 811 /* RFC4820 */ 812 #define SCTP_PAD_CHUNK 0x84 813 /************0xc0 series ***********/ 814 /* RFC3758 */ 815 #define SCTP_FORWARD_CUM_TSN 0xc0 816 /* RFC5061 */ 817 #define SCTP_ASCONF 0xc1 818 819 struct sctp_authkey { 820 sctp_assoc_t sca_assoc_id; 821 uint16_t sca_keynumber; 822 uint16_t sca_keylength; 823 uint8_t sca_key[]; 824 }; 825 826 struct sctp_authkeyid { 827 sctp_assoc_t scact_assoc_id; 828 uint16_t scact_keynumber; 829 }; 830 831 struct sctp_cc_option { 832 int option; 833 struct sctp_assoc_value aid_value; 834 }; 835 836 struct sctp_stream_value { 837 sctp_assoc_t assoc_id; 838 uint16_t stream_id; 839 uint16_t stream_value; 840 }; 841 842 struct sctp_timeouts { 843 sctp_assoc_t stimo_assoc_id; 844 uint32_t stimo_init; 845 uint32_t stimo_data; 846 uint32_t stimo_sack; 847 uint32_t stimo_shutdown; 848 uint32_t stimo_heartbeat; 849 uint32_t stimo_cookie; 850 uint32_t stimo_shutdownack; 851 }; 852 853 struct sctp_prstatus { 854 sctp_assoc_t sprstat_assoc_id; 855 uint16_t sprstat_sid; 856 uint16_t sprstat_policy; 857 uint64_t sprstat_abandoned_unsent; 858 uint64_t sprstat_abandoned_sent; 859 }; 860 861 /* Standard TCP Congestion Control */ 862 #define SCTP_CC_RFC2581 0x00000000 863 /* High Speed TCP Congestion Control (Floyd) */ 864 #define SCTP_CC_HSTCP 0x00000001 865 /* HTCP Congestion Control */ 866 #define SCTP_CC_HTCP 0x00000002 867 /* RTCC Congestion Control - RFC2581 plus */ 868 #define SCTP_CC_RTCC 0x00000003 869 870 #define SCTP_CC_OPT_RTCC_SETMODE 0x00002000 871 #define SCTP_CC_OPT_USE_DCCC_EC 0x00002001 872 #define SCTP_CC_OPT_STEADY_STEP 0x00002002 873 874 #define SCTP_CMT_OFF 0 875 #define SCTP_CMT_BASE 1 876 #define SCTP_CMT_RPV1 2 877 #define SCTP_CMT_RPV2 3 878 #define SCTP_CMT_MPTCP 4 879 #define SCTP_CMT_MAX SCTP_CMT_MPTCP 880 881 /* RS - Supported stream scheduling modules for pluggable 882 * stream scheduling 883 */ 884 /* Default simple round-robin */ 885 #define SCTP_SS_DEFAULT 0x00000000 886 /* Real round-robin */ 887 #define SCTP_SS_ROUND_ROBIN 0x00000001 888 /* Real round-robin per packet */ 889 #define SCTP_SS_ROUND_ROBIN_PACKET 0x00000002 890 /* Priority */ 891 #define SCTP_SS_PRIORITY 0x00000003 892 /* Fair Bandwidth */ 893 #define SCTP_SS_FAIR_BANDWITH 0x00000004 894 /* First-come, first-serve */ 895 #define SCTP_SS_FIRST_COME 0x00000005 896 897 /******************** System calls *************/ 898 899 struct socket; 900 901 void 902 usrsctp_init(uint16_t, 903 int (*)(void *addr, void *buffer, size_t length, uint8_t tos, uint8_t set_df), 904 void (*)(const char *format, ...)); 905 906 void 907 usrsctp_init_nothreads(uint16_t, 908 int (*)(void *addr, void *buffer, size_t length, uint8_t tos, uint8_t set_df), 909 void (*)(const char *format, ...)); 910 911 struct socket * 912 usrsctp_socket(int domain, int type, int protocol, 913 int (*receive_cb)(struct socket *sock, union sctp_sockstore addr, void *data, 914 size_t datalen, struct sctp_rcvinfo, int flags, void *ulp_info), 915 int (*send_cb)(struct socket *sock, uint32_t sb_free, void *ulp_info), 916 uint32_t sb_threshold, 917 void *ulp_info); 918 919 int 920 usrsctp_setsockopt(struct socket *so, 921 int level, 922 int option_name, 923 const void *option_value, 924 socklen_t option_len); 925 926 int 927 usrsctp_getsockopt(struct socket *so, 928 int level, 929 int option_name, 930 void *option_value, 931 socklen_t *option_len); 932 933 int 934 usrsctp_opt_info(struct socket *so, 935 sctp_assoc_t id, 936 int opt, 937 void *arg, 938 socklen_t *size); 939 940 int 941 usrsctp_getpaddrs(struct socket *so, 942 sctp_assoc_t id, 943 struct sockaddr **raddrs); 944 945 void 946 usrsctp_freepaddrs(struct sockaddr *addrs); 947 948 int 949 usrsctp_getladdrs(struct socket *so, 950 sctp_assoc_t id, 951 struct sockaddr **raddrs); 952 953 void 954 usrsctp_freeladdrs(struct sockaddr *addrs); 955 956 ssize_t 957 usrsctp_sendv(struct socket *so, 958 const void *data, 959 size_t len, 960 struct sockaddr *to, 961 int addrcnt, 962 void *info, 963 socklen_t infolen, 964 unsigned int infotype, 965 int flags); 966 967 ssize_t 968 usrsctp_recvv(struct socket *so, 969 void *dbuf, 970 size_t len, 971 struct sockaddr *from, 972 socklen_t * fromlen, 973 void *info, 974 socklen_t *infolen, 975 unsigned int *infotype, 976 int *msg_flags); 977 978 int 979 usrsctp_bind(struct socket *so, 980 struct sockaddr *name, 981 socklen_t namelen); 982 983 #define SCTP_BINDX_ADD_ADDR 0x00008001 984 #define SCTP_BINDX_REM_ADDR 0x00008002 985 986 int 987 usrsctp_bindx(struct socket *so, 988 struct sockaddr *addrs, 989 int addrcnt, 990 int flags); 991 992 int 993 usrsctp_listen(struct socket *so, 994 int backlog); 995 996 struct socket * 997 usrsctp_accept(struct socket *so, 998 struct sockaddr * aname, 999 socklen_t * anamelen); 1000 1001 struct socket * 1002 usrsctp_peeloff(struct socket *, sctp_assoc_t); 1003 1004 int 1005 usrsctp_connect(struct socket *so, 1006 struct sockaddr *name, 1007 socklen_t namelen); 1008 1009 int 1010 usrsctp_connectx(struct socket *so, 1011 const struct sockaddr *addrs, int addrcnt, 1012 sctp_assoc_t *id); 1013 1014 void 1015 usrsctp_close(struct socket *so); 1016 1017 sctp_assoc_t 1018 usrsctp_getassocid(struct socket *, struct sockaddr *); 1019 1020 int 1021 usrsctp_finish(void); 1022 1023 int 1024 usrsctp_shutdown(struct socket *so, int how); 1025 1026 void 1027 usrsctp_conninput(void *, const void *, size_t, uint8_t); 1028 1029 int 1030 usrsctp_set_non_blocking(struct socket *, int); 1031 1032 int 1033 usrsctp_get_non_blocking(struct socket *); 1034 1035 void 1036 usrsctp_register_address(void *); 1037 1038 void 1039 usrsctp_deregister_address(void *); 1040 1041 int 1042 usrsctp_set_ulpinfo(struct socket *, void *); 1043 1044 int 1045 usrsctp_get_ulpinfo(struct socket *, void **); 1046 1047 int 1048 usrsctp_set_upcall(struct socket *so, 1049 void (*upcall)(struct socket *, void *, int), 1050 void *arg); 1051 1052 int 1053 usrsctp_get_events(struct socket *so); 1054 1055 1056 void 1057 usrsctp_handle_timers(uint32_t elapsed_milliseconds); 1058 1059 #define SCTP_DUMP_OUTBOUND 1 1060 #define SCTP_DUMP_INBOUND 0 1061 1062 char * 1063 usrsctp_dumppacket(const void *, size_t, int); 1064 1065 void 1066 usrsctp_freedumpbuffer(char *); 1067 1068 void 1069 usrsctp_enable_crc32c_offload(void); 1070 1071 void 1072 usrsctp_disable_crc32c_offload(void); 1073 1074 uint32_t 1075 usrsctp_crc32c(void *, size_t); 1076 1077 #define USRSCTP_TUNABLE_DECL(__field) \ 1078 int usrsctp_tunable_set_ ## __field(uint32_t value);\ 1079 uint32_t usrsctp_sysctl_get_ ## __field(void); 1080 1081 USRSCTP_TUNABLE_DECL(sctp_hashtblsize) 1082 USRSCTP_TUNABLE_DECL(sctp_pcbtblsize) 1083 USRSCTP_TUNABLE_DECL(sctp_chunkscale) 1084 1085 #define USRSCTP_SYSCTL_DECL(__field) \ 1086 int usrsctp_sysctl_set_ ## __field(uint32_t value);\ 1087 uint32_t usrsctp_sysctl_get_ ## __field(void); 1088 1089 USRSCTP_SYSCTL_DECL(sctp_sendspace) 1090 USRSCTP_SYSCTL_DECL(sctp_recvspace) 1091 USRSCTP_SYSCTL_DECL(sctp_auto_asconf) 1092 USRSCTP_SYSCTL_DECL(sctp_multiple_asconfs) 1093 USRSCTP_SYSCTL_DECL(sctp_ecn_enable) 1094 USRSCTP_SYSCTL_DECL(sctp_pr_enable) 1095 USRSCTP_SYSCTL_DECL(sctp_auth_enable) 1096 USRSCTP_SYSCTL_DECL(sctp_asconf_enable) 1097 USRSCTP_SYSCTL_DECL(sctp_reconfig_enable) 1098 USRSCTP_SYSCTL_DECL(sctp_nrsack_enable) 1099 USRSCTP_SYSCTL_DECL(sctp_pktdrop_enable) 1100 USRSCTP_SYSCTL_DECL(sctp_no_csum_on_loopback) 1101 USRSCTP_SYSCTL_DECL(sctp_peer_chunk_oh) 1102 USRSCTP_SYSCTL_DECL(sctp_max_burst_default) 1103 USRSCTP_SYSCTL_DECL(sctp_max_chunks_on_queue) 1104 USRSCTP_SYSCTL_DECL(sctp_min_split_point) 1105 USRSCTP_SYSCTL_DECL(sctp_delayed_sack_time_default) 1106 USRSCTP_SYSCTL_DECL(sctp_sack_freq_default) 1107 USRSCTP_SYSCTL_DECL(sctp_system_free_resc_limit) 1108 USRSCTP_SYSCTL_DECL(sctp_asoc_free_resc_limit) 1109 USRSCTP_SYSCTL_DECL(sctp_heartbeat_interval_default) 1110 USRSCTP_SYSCTL_DECL(sctp_pmtu_raise_time_default) 1111 USRSCTP_SYSCTL_DECL(sctp_shutdown_guard_time_default) 1112 USRSCTP_SYSCTL_DECL(sctp_secret_lifetime_default) 1113 USRSCTP_SYSCTL_DECL(sctp_rto_max_default) 1114 USRSCTP_SYSCTL_DECL(sctp_rto_min_default) 1115 USRSCTP_SYSCTL_DECL(sctp_rto_initial_default) 1116 USRSCTP_SYSCTL_DECL(sctp_init_rto_max_default) 1117 USRSCTP_SYSCTL_DECL(sctp_valid_cookie_life_default) 1118 USRSCTP_SYSCTL_DECL(sctp_init_rtx_max_default) 1119 USRSCTP_SYSCTL_DECL(sctp_assoc_rtx_max_default) 1120 USRSCTP_SYSCTL_DECL(sctp_path_rtx_max_default) 1121 USRSCTP_SYSCTL_DECL(sctp_add_more_threshold) 1122 USRSCTP_SYSCTL_DECL(sctp_nr_incoming_streams_default) 1123 USRSCTP_SYSCTL_DECL(sctp_nr_outgoing_streams_default) 1124 USRSCTP_SYSCTL_DECL(sctp_cmt_on_off) 1125 USRSCTP_SYSCTL_DECL(sctp_cmt_use_dac) 1126 USRSCTP_SYSCTL_DECL(sctp_use_cwnd_based_maxburst) 1127 USRSCTP_SYSCTL_DECL(sctp_nat_friendly) 1128 USRSCTP_SYSCTL_DECL(sctp_L2_abc_variable) 1129 USRSCTP_SYSCTL_DECL(sctp_mbuf_threshold_count) 1130 USRSCTP_SYSCTL_DECL(sctp_do_drain) 1131 USRSCTP_SYSCTL_DECL(sctp_hb_maxburst) 1132 USRSCTP_SYSCTL_DECL(sctp_abort_if_one_2_one_hits_limit) 1133 USRSCTP_SYSCTL_DECL(sctp_min_residual) 1134 USRSCTP_SYSCTL_DECL(sctp_max_retran_chunk) 1135 USRSCTP_SYSCTL_DECL(sctp_logging_level) 1136 USRSCTP_SYSCTL_DECL(sctp_default_cc_module) 1137 USRSCTP_SYSCTL_DECL(sctp_default_frag_interleave) 1138 USRSCTP_SYSCTL_DECL(sctp_mobility_base) 1139 USRSCTP_SYSCTL_DECL(sctp_mobility_fasthandoff) 1140 USRSCTP_SYSCTL_DECL(sctp_inits_include_nat_friendly) 1141 USRSCTP_SYSCTL_DECL(sctp_udp_tunneling_port) 1142 USRSCTP_SYSCTL_DECL(sctp_enable_sack_immediately) 1143 USRSCTP_SYSCTL_DECL(sctp_vtag_time_wait) 1144 USRSCTP_SYSCTL_DECL(sctp_blackhole) 1145 USRSCTP_SYSCTL_DECL(sctp_sendall_limit) 1146 USRSCTP_SYSCTL_DECL(sctp_diag_info_code) 1147 USRSCTP_SYSCTL_DECL(sctp_fr_max_burst_default) 1148 USRSCTP_SYSCTL_DECL(sctp_path_pf_threshold) 1149 USRSCTP_SYSCTL_DECL(sctp_default_ss_module) 1150 USRSCTP_SYSCTL_DECL(sctp_rttvar_bw) 1151 USRSCTP_SYSCTL_DECL(sctp_rttvar_rtt) 1152 USRSCTP_SYSCTL_DECL(sctp_rttvar_eqret) 1153 USRSCTP_SYSCTL_DECL(sctp_steady_step) 1154 USRSCTP_SYSCTL_DECL(sctp_use_dccc_ecn) 1155 USRSCTP_SYSCTL_DECL(sctp_buffer_splitting) 1156 USRSCTP_SYSCTL_DECL(sctp_initial_cwnd) 1157 USRSCTP_SYSCTL_DECL(sctp_ootb_with_zero_cksum) 1158 #ifdef SCTP_DEBUG 1159 USRSCTP_SYSCTL_DECL(sctp_debug_on) 1160 /* More specific values can be found in sctp_constants, but 1161 * are not considered to be part of the API. 1162 */ 1163 #define SCTP_DEBUG_NONE 0x00000000 1164 #define SCTP_DEBUG_ALL 0xffffffff 1165 #endif 1166 #undef USRSCTP_SYSCTL_DECL 1167 struct sctp_timeval { 1168 uint32_t tv_sec; 1169 uint32_t tv_usec; 1170 }; 1171 1172 struct sctpstat { 1173 struct sctp_timeval sctps_discontinuitytime; /* sctpStats 18 (TimeStamp) */ 1174 /* MIB according to RFC 3873 */ 1175 uint32_t sctps_currestab; /* sctpStats 1 (Gauge32) */ 1176 uint32_t sctps_activeestab; /* sctpStats 2 (Counter32) */ 1177 uint32_t sctps_restartestab; 1178 uint32_t sctps_collisionestab; 1179 uint32_t sctps_passiveestab; /* sctpStats 3 (Counter32) */ 1180 uint32_t sctps_aborted; /* sctpStats 4 (Counter32) */ 1181 uint32_t sctps_shutdown; /* sctpStats 5 (Counter32) */ 1182 uint32_t sctps_outoftheblue; /* sctpStats 6 (Counter32) */ 1183 uint32_t sctps_checksumerrors; /* sctpStats 7 (Counter32) */ 1184 uint32_t sctps_outcontrolchunks; /* sctpStats 8 (Counter64) */ 1185 uint32_t sctps_outorderchunks; /* sctpStats 9 (Counter64) */ 1186 uint32_t sctps_outunorderchunks; /* sctpStats 10 (Counter64) */ 1187 uint32_t sctps_incontrolchunks; /* sctpStats 11 (Counter64) */ 1188 uint32_t sctps_inorderchunks; /* sctpStats 12 (Counter64) */ 1189 uint32_t sctps_inunorderchunks; /* sctpStats 13 (Counter64) */ 1190 uint32_t sctps_fragusrmsgs; /* sctpStats 14 (Counter64) */ 1191 uint32_t sctps_reasmusrmsgs; /* sctpStats 15 (Counter64) */ 1192 uint32_t sctps_outpackets; /* sctpStats 16 (Counter64) */ 1193 uint32_t sctps_inpackets; /* sctpStats 17 (Counter64) */ 1194 1195 /* input statistics: */ 1196 uint32_t sctps_recvpackets; /* total input packets */ 1197 uint32_t sctps_recvdatagrams; /* total input datagrams */ 1198 uint32_t sctps_recvpktwithdata; /* total packets that had data */ 1199 uint32_t sctps_recvsacks; /* total input SACK chunks */ 1200 uint32_t sctps_recvdata; /* total input DATA chunks */ 1201 uint32_t sctps_recvdupdata; /* total input duplicate DATA chunks */ 1202 uint32_t sctps_recvheartbeat; /* total input HB chunks */ 1203 uint32_t sctps_recvheartbeatack; /* total input HB-ACK chunks */ 1204 uint32_t sctps_recvecne; /* total input ECNE chunks */ 1205 uint32_t sctps_recvauth; /* total input AUTH chunks */ 1206 uint32_t sctps_recvauthmissing; /* total input chunks missing AUTH */ 1207 uint32_t sctps_recvivalhmacid; /* total number of invalid HMAC ids received */ 1208 uint32_t sctps_recvivalkeyid; /* total number of invalid secret ids received */ 1209 uint32_t sctps_recvauthfailed; /* total number of auth failed */ 1210 uint32_t sctps_recvexpress; /* total fast path receives all one chunk */ 1211 uint32_t sctps_recvexpressm; /* total fast path multi-part data */ 1212 uint32_t sctps_recv_spare; /* formerly sctps_recvnocrc */ 1213 uint32_t sctps_recvswcrc; 1214 uint32_t sctps_recvhwcrc; 1215 1216 /* output statistics: */ 1217 uint32_t sctps_sendpackets; /* total output packets */ 1218 uint32_t sctps_sendsacks; /* total output SACKs */ 1219 uint32_t sctps_senddata; /* total output DATA chunks */ 1220 uint32_t sctps_sendretransdata; /* total output retransmitted DATA chunks */ 1221 uint32_t sctps_sendfastretrans; /* total output fast retransmitted DATA chunks */ 1222 uint32_t sctps_sendmultfastretrans; /* total FR's that happened more than once 1223 * to same chunk (u-del multi-fr algo). 1224 */ 1225 uint32_t sctps_sendheartbeat; /* total output HB chunks */ 1226 uint32_t sctps_sendecne; /* total output ECNE chunks */ 1227 uint32_t sctps_sendauth; /* total output AUTH chunks FIXME */ 1228 uint32_t sctps_senderrors; /* ip_output error counter */ 1229 uint32_t sctps_send_spare; /* formerly sctps_sendnocrc */ 1230 uint32_t sctps_sendswcrc; 1231 uint32_t sctps_sendhwcrc; 1232 /* PCKDROPREP statistics: */ 1233 uint32_t sctps_pdrpfmbox; /* Packet drop from middle box */ 1234 uint32_t sctps_pdrpfehos; /* P-drop from end host */ 1235 uint32_t sctps_pdrpmbda; /* P-drops with data */ 1236 uint32_t sctps_pdrpmbct; /* P-drops, non-data, non-endhost */ 1237 uint32_t sctps_pdrpbwrpt; /* P-drop, non-endhost, bandwidth rep only */ 1238 uint32_t sctps_pdrpcrupt; /* P-drop, not enough for chunk header */ 1239 uint32_t sctps_pdrpnedat; /* P-drop, not enough data to confirm */ 1240 uint32_t sctps_pdrppdbrk; /* P-drop, where process_chunk_drop said break */ 1241 uint32_t sctps_pdrptsnnf; /* P-drop, could not find TSN */ 1242 uint32_t sctps_pdrpdnfnd; /* P-drop, attempt reverse TSN lookup */ 1243 uint32_t sctps_pdrpdiwnp; /* P-drop, e-host confirms zero-rwnd */ 1244 uint32_t sctps_pdrpdizrw; /* P-drop, midbox confirms no space */ 1245 uint32_t sctps_pdrpbadd; /* P-drop, data did not match TSN */ 1246 uint32_t sctps_pdrpmark; /* P-drop, TSN's marked for Fast Retran */ 1247 /* timeouts */ 1248 uint32_t sctps_timoiterator; /* Number of iterator timers that fired */ 1249 uint32_t sctps_timodata; /* Number of T3 data time outs */ 1250 uint32_t sctps_timowindowprobe; /* Number of window probe (T3) timers that fired */ 1251 uint32_t sctps_timoinit; /* Number of INIT timers that fired */ 1252 uint32_t sctps_timosack; /* Number of sack timers that fired */ 1253 uint32_t sctps_timoshutdown; /* Number of shutdown timers that fired */ 1254 uint32_t sctps_timoheartbeat; /* Number of heartbeat timers that fired */ 1255 uint32_t sctps_timocookie; /* Number of times a cookie timeout fired */ 1256 uint32_t sctps_timosecret; /* Number of times an endpoint changed its cookie secret*/ 1257 uint32_t sctps_timopathmtu; /* Number of PMTU timers that fired */ 1258 uint32_t sctps_timoshutdownack; /* Number of shutdown ack timers that fired */ 1259 uint32_t sctps_timoshutdownguard; /* Number of shutdown guard timers that fired */ 1260 uint32_t sctps_timostrmrst; /* Number of stream reset timers that fired */ 1261 uint32_t sctps_timoearlyfr; /* Number of early FR timers that fired */ 1262 uint32_t sctps_timoasconf; /* Number of times an asconf timer fired */ 1263 uint32_t sctps_timodelprim; /* Number of times a prim_deleted timer fired */ 1264 uint32_t sctps_timoautoclose; /* Number of times auto close timer fired */ 1265 uint32_t sctps_timoassockill; /* Number of asoc free timers expired */ 1266 uint32_t sctps_timoinpkill; /* Number of inp free timers expired */ 1267 /* former early FR counters */ 1268 uint32_t sctps_spare[11]; 1269 /* others */ 1270 uint32_t sctps_hdrops; /* packet shorter than header */ 1271 uint32_t sctps_badsum; /* checksum error */ 1272 uint32_t sctps_noport; /* no endpoint for port */ 1273 uint32_t sctps_badvtag; /* bad v-tag */ 1274 uint32_t sctps_badsid; /* bad SID */ 1275 uint32_t sctps_nomem; /* no memory */ 1276 uint32_t sctps_fastretransinrtt; /* number of multiple FR in a RTT window */ 1277 uint32_t sctps_markedretrans; 1278 uint32_t sctps_naglesent; /* nagle allowed sending */ 1279 uint32_t sctps_naglequeued; /* nagle doesn't allow sending */ 1280 uint32_t sctps_maxburstqueued; /* max burst doesn't allow sending */ 1281 uint32_t sctps_ifnomemqueued; /* look ahead tells us no memory in 1282 * interface ring buffer OR we had a 1283 * send error and are queuing one send. 1284 */ 1285 uint32_t sctps_windowprobed; /* total number of window probes sent */ 1286 uint32_t sctps_lowlevelerr; /* total times an output error causes us 1287 * to clamp down on next user send. 1288 */ 1289 uint32_t sctps_lowlevelerrusr; /* total times sctp_senderrors were caused from 1290 * a user send from a user invoked send not 1291 * a sack response 1292 */ 1293 uint32_t sctps_datadropchklmt; /* Number of in data drops due to chunk limit reached */ 1294 uint32_t sctps_datadroprwnd; /* Number of in data drops due to rwnd limit reached */ 1295 uint32_t sctps_ecnereducedcwnd; /* Number of times a ECN reduced the cwnd */ 1296 uint32_t sctps_vtagexpress; /* Used express lookup via vtag */ 1297 uint32_t sctps_vtagbogus; /* Collision in express lookup. */ 1298 uint32_t sctps_primary_randry; /* Number of times the sender ran dry of user data on primary */ 1299 uint32_t sctps_cmt_randry; /* Same for above */ 1300 uint32_t sctps_slowpath_sack; /* Sacks the slow way */ 1301 uint32_t sctps_wu_sacks_sent; /* Window Update only sacks sent */ 1302 uint32_t sctps_sends_with_flags; /* number of sends with sinfo_flags !=0 */ 1303 uint32_t sctps_sends_with_unord; /* number of unordered sends */ 1304 uint32_t sctps_sends_with_eof; /* number of sends with EOF flag set */ 1305 uint32_t sctps_sends_with_abort; /* number of sends with ABORT flag set */ 1306 uint32_t sctps_protocol_drain_calls;/* number of times protocol drain called */ 1307 uint32_t sctps_protocol_drains_done;/* number of times we did a protocol drain */ 1308 uint32_t sctps_read_peeks; /* Number of times recv was called with peek */ 1309 uint32_t sctps_cached_chk; /* Number of cached chunks used */ 1310 uint32_t sctps_cached_strmoq; /* Number of cached stream oq's used */ 1311 uint32_t sctps_left_abandon; /* Number of unread messages abandoned by close */ 1312 uint32_t sctps_send_burst_avoid; /* Unused */ 1313 uint32_t sctps_send_cwnd_avoid; /* Send cwnd full avoidance, already max burst inflight to net */ 1314 uint32_t sctps_fwdtsn_map_over; /* number of map array over-runs via fwd-tsn's */ 1315 uint32_t sctps_queue_upd_ecne; /* Number of times we queued or updated an ECN chunk on send queue */ 1316 uint32_t sctps_recvzerocrc; /* Number of accepted packets with zero CRC */ 1317 uint32_t sctps_sendzerocrc; /* Number of packets sent with zero CRC */ 1318 uint32_t sctps_reserved[29]; /* Future ABI compat - remove int's from here when adding new */ 1319 }; 1320 1321 void 1322 usrsctp_get_stat(struct sctpstat *); 1323 1324 #ifdef _WIN32 1325 #ifdef _MSC_VER 1326 #pragma warning(default: 4200) 1327 #endif 1328 #endif 1329 #ifdef __cplusplus 1330 } 1331 #endif 1332 #endif