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 35extern "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#define uint8_t unsigned __int8 68#define uint16_t unsigned __int16 69#define uint32_t unsigned __int32 70#define int16_t __int16 71#define int32_t __int32 72#endif 73 74#define ssize_t __int64 75#define MSG_EOR 0x8 76#ifndef EWOULDBLOCK 77#define EWOULDBLOCK WSAEWOULDBLOCK 78#endif 79#ifndef EINPROGRESS 80#define EINPROGRESS WSAEINPROGRESS 81#endif 82#define SHUT_RD 1 83#define SHUT_WR 2 84#define SHUT_RDWR 3 85#endif 86 87typedef uint32_t sctp_assoc_t; 88 89#define AF_CONN 123 90/* The definition of struct sockaddr_conn MUST be in 91 * tune with other sockaddr_* structures. 92 */ 93#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__) 94struct sockaddr_conn { 95 uint8_t sconn_len; 96 uint8_t sconn_family; 97 uint16_t sconn_port; 98 void *sconn_addr; 99}; 100#else 101struct sockaddr_conn { 102 uint16_t sconn_family; 103 uint16_t sconn_port; 104 void *sconn_addr; 105}; 106#endif 107 108union sctp_sockstore { 109#if defined(INET) 110 struct sockaddr_in sin; 111#endif 112#if defined(INET6) 113 struct sockaddr_in6 sin6; 114#endif 115 struct sockaddr_conn sconn; 116 struct sockaddr sa; 117}; 118 119#define SCTP_FUTURE_ASSOC 0 120#define SCTP_CURRENT_ASSOC 1 121#define SCTP_ALL_ASSOC 2 122 123/*** Structures and definitions to use the socket API ***/ 124 125#define SCTP_ALIGN_RESV_PAD 92 126#define SCTP_ALIGN_RESV_PAD_SHORT 76 127 128struct sctp_rcvinfo { 129 uint16_t rcv_sid; 130 uint16_t rcv_ssn; 131 uint16_t rcv_flags; 132 uint32_t rcv_ppid; 133 uint32_t rcv_tsn; 134 uint32_t rcv_cumtsn; 135 uint32_t rcv_context; 136 sctp_assoc_t rcv_assoc_id; 137}; 138 139struct sctp_nxtinfo { 140 uint16_t nxt_sid; 141 uint16_t nxt_flags; 142 uint32_t nxt_ppid; 143 uint32_t nxt_length; 144 sctp_assoc_t nxt_assoc_id; 145}; 146 147#define SCTP_NO_NEXT_MSG 0x0000 148#define SCTP_NEXT_MSG_AVAIL 0x0001 149#define SCTP_NEXT_MSG_ISCOMPLETE 0x0002 150#define SCTP_NEXT_MSG_IS_UNORDERED 0x0004 151#define SCTP_NEXT_MSG_IS_NOTIFICATION 0x0008 152 153struct sctp_recvv_rn { 154 struct sctp_rcvinfo recvv_rcvinfo; 155 struct sctp_nxtinfo recvv_nxtinfo; 156}; 157 158#define SCTP_RECVV_NOINFO 0 159#define SCTP_RECVV_RCVINFO 1 160#define SCTP_RECVV_NXTINFO 2 161#define SCTP_RECVV_RN 3 162 163#define SCTP_SENDV_NOINFO 0 164#define SCTP_SENDV_SNDINFO 1 165#define SCTP_SENDV_PRINFO 2 166#define SCTP_SENDV_AUTHINFO 3 167#define SCTP_SENDV_SPA 4 168 169#define SCTP_SEND_SNDINFO_VALID 0x00000001 170#define SCTP_SEND_PRINFO_VALID 0x00000002 171#define SCTP_SEND_AUTHINFO_VALID 0x00000004 172 173struct sctp_snd_all_completes { 174 uint16_t sall_stream; 175 uint16_t sall_flags; 176 uint32_t sall_ppid; 177 uint32_t sall_context; 178 uint32_t sall_num_sent; 179 uint32_t sall_num_failed; 180}; 181 182struct sctp_sndinfo { 183 uint16_t snd_sid; 184 uint16_t snd_flags; 185 uint32_t snd_ppid; 186 uint32_t snd_context; 187 sctp_assoc_t snd_assoc_id; 188}; 189 190struct sctp_prinfo { 191 uint16_t pr_policy; 192 uint32_t pr_value; 193}; 194 195struct sctp_authinfo { 196 uint16_t auth_keynumber; 197}; 198 199struct sctp_sendv_spa { 200 uint32_t sendv_flags; 201 struct sctp_sndinfo sendv_sndinfo; 202 struct sctp_prinfo sendv_prinfo; 203 struct sctp_authinfo sendv_authinfo; 204}; 205 206struct sctp_udpencaps { 207 struct sockaddr_storage sue_address; 208 uint32_t sue_assoc_id; 209 uint16_t sue_port; 210}; 211 212/******** Notifications **************/ 213 214/* notification types */ 215#define SCTP_ASSOC_CHANGE 0x0001 216#define SCTP_PEER_ADDR_CHANGE 0x0002 217#define SCTP_REMOTE_ERROR 0x0003 218#define SCTP_SEND_FAILED 0x0004 219#define SCTP_SHUTDOWN_EVENT 0x0005 220#define SCTP_ADAPTATION_INDICATION 0x0006 221#define SCTP_PARTIAL_DELIVERY_EVENT 0x0007 222#define SCTP_AUTHENTICATION_EVENT 0x0008 223#define SCTP_STREAM_RESET_EVENT 0x0009 224#define SCTP_SENDER_DRY_EVENT 0x000a 225#define SCTP_NOTIFICATIONS_STOPPED_EVENT 0x000b 226#define SCTP_ASSOC_RESET_EVENT 0x000c 227#define SCTP_STREAM_CHANGE_EVENT 0x000d 228#define SCTP_SEND_FAILED_EVENT 0x000e 229 230/* notification event structures */ 231 232 233/* association change event */ 234struct sctp_assoc_change { 235 uint16_t sac_type; 236 uint16_t sac_flags; 237 uint32_t sac_length; 238 uint16_t sac_state; 239 uint16_t sac_error; 240 uint16_t sac_outbound_streams; 241 uint16_t sac_inbound_streams; 242 sctp_assoc_t sac_assoc_id; 243 uint8_t sac_info[]; /* not available yet */ 244}; 245 246/* sac_state values */ 247#define SCTP_COMM_UP 0x0001 248#define SCTP_COMM_LOST 0x0002 249#define SCTP_RESTART 0x0003 250#define SCTP_SHUTDOWN_COMP 0x0004 251#define SCTP_CANT_STR_ASSOC 0x0005 252 253/* sac_info values */ 254#define SCTP_ASSOC_SUPPORTS_PR 0x01 255#define SCTP_ASSOC_SUPPORTS_AUTH 0x02 256#define SCTP_ASSOC_SUPPORTS_ASCONF 0x03 257#define SCTP_ASSOC_SUPPORTS_MULTIBUF 0x04 258#define SCTP_ASSOC_SUPPORTS_RE_CONFIG 0x05 259#define SCTP_ASSOC_SUPPORTS_MAX 0x05 260 261/* Address event */ 262struct sctp_paddr_change { 263 uint16_t spc_type; 264 uint16_t spc_flags; 265 uint32_t spc_length; 266 struct sockaddr_storage spc_aaddr; 267 uint32_t spc_state; 268 uint32_t spc_error; 269 sctp_assoc_t spc_assoc_id; 270 uint8_t spc_padding[4]; 271}; 272 273/* paddr state values */ 274#define SCTP_ADDR_AVAILABLE 0x0001 275#define SCTP_ADDR_UNREACHABLE 0x0002 276#define SCTP_ADDR_REMOVED 0x0003 277#define SCTP_ADDR_ADDED 0x0004 278#define SCTP_ADDR_MADE_PRIM 0x0005 279#define SCTP_ADDR_CONFIRMED 0x0006 280 281/* remote error events */ 282struct sctp_remote_error { 283 uint16_t sre_type; 284 uint16_t sre_flags; 285 uint32_t sre_length; 286 uint16_t sre_error; 287 sctp_assoc_t sre_assoc_id; 288 uint8_t sre_data[4]; 289}; 290 291/* shutdown event */ 292struct sctp_shutdown_event { 293 uint16_t sse_type; 294 uint16_t sse_flags; 295 uint32_t sse_length; 296 sctp_assoc_t sse_assoc_id; 297}; 298 299/* Adaptation layer indication */ 300struct sctp_adaptation_event { 301 uint16_t sai_type; 302 uint16_t sai_flags; 303 uint32_t sai_length; 304 uint32_t sai_adaptation_ind; 305 sctp_assoc_t sai_assoc_id; 306}; 307 308/* Partial delivery event */ 309struct sctp_pdapi_event { 310 uint16_t pdapi_type; 311 uint16_t pdapi_flags; 312 uint32_t pdapi_length; 313 uint32_t pdapi_indication; 314 uint32_t pdapi_stream; 315 uint32_t pdapi_seq; 316 sctp_assoc_t pdapi_assoc_id; 317}; 318 319/* indication values */ 320#define SCTP_PARTIAL_DELIVERY_ABORTED 0x0001 321 322/* SCTP authentication event */ 323struct sctp_authkey_event { 324 uint16_t auth_type; 325 uint16_t auth_flags; 326 uint32_t auth_length; 327 uint16_t auth_keynumber; 328 uint32_t auth_indication; 329 sctp_assoc_t auth_assoc_id; 330}; 331 332/* indication values */ 333#define SCTP_AUTH_NEW_KEY 0x0001 334#define SCTP_AUTH_NO_AUTH 0x0002 335#define SCTP_AUTH_FREE_KEY 0x0003 336 337/* SCTP sender dry event */ 338struct sctp_sender_dry_event { 339 uint16_t sender_dry_type; 340 uint16_t sender_dry_flags; 341 uint32_t sender_dry_length; 342 sctp_assoc_t sender_dry_assoc_id; 343}; 344 345 346/* Stream reset event - subscribe to SCTP_STREAM_RESET_EVENT */ 347struct sctp_stream_reset_event { 348 uint16_t strreset_type; 349 uint16_t strreset_flags; 350 uint32_t strreset_length; 351 sctp_assoc_t strreset_assoc_id; 352 uint16_t strreset_stream_list[]; 353}; 354 355/* flags in stream_reset_event (strreset_flags) */ 356#define SCTP_STREAM_RESET_INCOMING_SSN 0x0001 357#define SCTP_STREAM_RESET_OUTGOING_SSN 0x0002 358#define SCTP_STREAM_RESET_DENIED 0x0004 /* SCTP_STRRESET_FAILED */ 359#define SCTP_STREAM_RESET_FAILED 0x0008 /* SCTP_STRRESET_FAILED */ 360#define SCTP_STREAM_CHANGED_DENIED 0x0010 361 362#define SCTP_STREAM_RESET_INCOMING 0x00000001 363#define SCTP_STREAM_RESET_OUTGOING 0x00000002 364 365 366/* Assoc reset event - subscribe to SCTP_ASSOC_RESET_EVENT */ 367struct sctp_assoc_reset_event { 368 uint16_t assocreset_type; 369 uint16_t assocreset_flags; 370 uint32_t assocreset_length; 371 sctp_assoc_t assocreset_assoc_id; 372 uint32_t assocreset_local_tsn; 373 uint32_t assocreset_remote_tsn; 374}; 375 376#define SCTP_ASSOC_RESET_DENIED 0x0004 377#define SCTP_ASSOC_RESET_FAILED 0x0008 378 379 380/* Stream change event - subscribe to SCTP_STREAM_CHANGE_EVENT */ 381struct sctp_stream_change_event { 382 uint16_t strchange_type; 383 uint16_t strchange_flags; 384 uint32_t strchange_length; 385 sctp_assoc_t strchange_assoc_id; 386 uint16_t strchange_instrms; 387 uint16_t strchange_outstrms; 388}; 389 390#define SCTP_STREAM_CHANGE_DENIED 0x0004 391#define SCTP_STREAM_CHANGE_FAILED 0x0008 392 393 394/* SCTP send failed event */ 395struct sctp_send_failed_event { 396 uint16_t ssfe_type; 397 uint16_t ssfe_flags; 398 uint32_t ssfe_length; 399 uint32_t ssfe_error; 400 struct sctp_sndinfo ssfe_info; 401 sctp_assoc_t ssfe_assoc_id; 402 uint8_t ssfe_data[]; 403}; 404 405/* flag that indicates state of data */ 406#define SCTP_DATA_UNSENT 0x0001 /* inqueue never on wire */ 407#define SCTP_DATA_SENT 0x0002 /* on wire at failure */ 408 409/* SCTP event option */ 410struct sctp_event { 411 sctp_assoc_t se_assoc_id; 412 uint16_t se_type; 413 uint8_t se_on; 414}; 415 416union sctp_notification { 417 struct sctp_tlv { 418 uint16_t sn_type; 419 uint16_t sn_flags; 420 uint32_t sn_length; 421 } sn_header; 422 struct sctp_assoc_change sn_assoc_change; 423 struct sctp_paddr_change sn_paddr_change; 424 struct sctp_remote_error sn_remote_error; 425 struct sctp_shutdown_event sn_shutdown_event; 426 struct sctp_adaptation_event sn_adaptation_event; 427 struct sctp_pdapi_event sn_pdapi_event; 428 struct sctp_authkey_event sn_auth_event; 429 struct sctp_sender_dry_event sn_sender_dry_event; 430 struct sctp_send_failed_event sn_send_failed_event; 431 struct sctp_stream_reset_event sn_strreset_event; 432 struct sctp_assoc_reset_event sn_assocreset_event; 433 struct sctp_stream_change_event sn_strchange_event; 434}; 435 436struct sctp_event_subscribe { 437 uint8_t sctp_data_io_event; 438 uint8_t sctp_association_event; 439 uint8_t sctp_address_event; 440 uint8_t sctp_send_failure_event; 441 uint8_t sctp_peer_error_event; 442 uint8_t sctp_shutdown_event; 443 uint8_t sctp_partial_delivery_event; 444 uint8_t sctp_adaptation_layer_event; 445 uint8_t sctp_authentication_event; 446 uint8_t sctp_sender_dry_event; 447 uint8_t sctp_stream_reset_event; 448}; 449 450 451 452/* Flags that go into the sinfo->sinfo_flags field */ 453#define SCTP_NOTIFICATION 0x0010 /* next message is a notification */ 454#define SCTP_COMPLETE 0x0020 /* next message is complete */ 455#define SCTP_EOF 0x0100 /* Start shutdown procedures */ 456#define SCTP_ABORT 0x0200 /* Send an ABORT to peer */ 457#define SCTP_UNORDERED 0x0400 /* Message is un-ordered */ 458#define SCTP_ADDR_OVER 0x0800 /* Override the primary-address */ 459#define SCTP_SENDALL 0x1000 /* Send this on all associations */ 460#define SCTP_EOR 0x2000 /* end of message signal */ 461#define SCTP_SACK_IMMEDIATELY 0x4000 /* Set I-Bit */ 462 463#define INVALID_SINFO_FLAG(x) (((x) & 0xfffffff0 \ 464 & ~(SCTP_EOF | SCTP_ABORT | SCTP_UNORDERED |\ 465 SCTP_ADDR_OVER | SCTP_SENDALL | SCTP_EOR |\ 466 SCTP_SACK_IMMEDIATELY)) != 0) 467/* for the endpoint */ 468 469/* The lower byte is an enumeration of PR-SCTP policies */ 470#define SCTP_PR_SCTP_NONE 0x0000 /* Reliable transfer */ 471#define SCTP_PR_SCTP_TTL 0x0001 /* Time based PR-SCTP */ 472#define SCTP_PR_SCTP_BUF 0x0002 /* Buffer based PR-SCTP */ 473#define SCTP_PR_SCTP_RTX 0x0003 /* Number of retransmissions based PR-SCTP */ 474 475#define PR_SCTP_POLICY(x) ((x) & 0x0f) 476#define PR_SCTP_ENABLED(x) (PR_SCTP_POLICY(x) != SCTP_PR_SCTP_NONE) 477#define PR_SCTP_TTL_ENABLED(x) (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_TTL) 478#define PR_SCTP_BUF_ENABLED(x) (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_BUF) 479#define PR_SCTP_RTX_ENABLED(x) (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_RTX) 480#define PR_SCTP_INVALID_POLICY(x) (PR_SCTP_POLICY(x) > SCTP_PR_SCTP_RTX) 481 482 483/* 484 * user socket options: socket API defined 485 */ 486/* 487 * read-write options 488 */ 489#define SCTP_RTOINFO 0x00000001 490#define SCTP_ASSOCINFO 0x00000002 491#define SCTP_INITMSG 0x00000003 492#define SCTP_NODELAY 0x00000004 493#define SCTP_AUTOCLOSE 0x00000005 494#define SCTP_PRIMARY_ADDR 0x00000007 495#define SCTP_ADAPTATION_LAYER 0x00000008 496#define SCTP_DISABLE_FRAGMENTS 0x00000009 497#define SCTP_PEER_ADDR_PARAMS 0x0000000a 498/* ancillary data/notification interest options */ 499/* Without this applied we will give V4 and V6 addresses on a V6 socket */ 500#define SCTP_I_WANT_MAPPED_V4_ADDR 0x0000000d 501#define SCTP_MAXSEG 0x0000000e 502#define SCTP_DELAYED_SACK 0x0000000f 503#define SCTP_FRAGMENT_INTERLEAVE 0x00000010 504#define SCTP_PARTIAL_DELIVERY_POINT 0x00000011 505/* authentication support */ 506#define SCTP_HMAC_IDENT 0x00000014 507#define SCTP_AUTH_ACTIVE_KEY 0x00000015 508#define SCTP_AUTO_ASCONF 0x00000018 509#define SCTP_MAX_BURST 0x00000019 510/* assoc level context */ 511#define SCTP_CONTEXT 0x0000001a 512/* explicit EOR signalling */ 513#define SCTP_EXPLICIT_EOR 0x0000001b 514#define SCTP_REUSE_PORT 0x0000001c 515 516#define SCTP_EVENT 0x0000001e 517#define SCTP_RECVRCVINFO 0x0000001f 518#define SCTP_RECVNXTINFO 0x00000020 519#define SCTP_DEFAULT_SNDINFO 0x00000021 520#define SCTP_DEFAULT_PRINFO 0x00000022 521#define SCTP_REMOTE_UDP_ENCAPS_PORT 0x00000024 522 523#define SCTP_ENABLE_STREAM_RESET 0x00000900 /* struct sctp_assoc_value */ 524 525/* 526 * read-only options 527 */ 528#define SCTP_STATUS 0x00000100 529#define SCTP_GET_PEER_ADDR_INFO 0x00000101 530/* authentication support */ 531#define SCTP_PEER_AUTH_CHUNKS 0x00000102 532#define SCTP_LOCAL_AUTH_CHUNKS 0x00000103 533#define SCTP_GET_ASSOC_NUMBER 0x00000104 534#define SCTP_GET_ASSOC_ID_LIST 0x00000105 535 536/* 537 * write-only options 538 */ 539#define SCTP_SET_PEER_PRIMARY_ADDR 0x00000006 540#define SCTP_AUTH_CHUNK 0x00000012 541#define SCTP_AUTH_KEY 0x00000013 542#define SCTP_AUTH_DEACTIVATE_KEY 0x0000001d 543#define SCTP_AUTH_DELETE_KEY 0x00000016 544#define SCTP_RESET_STREAMS 0x00000901 /* struct sctp_reset_streams */ 545#define SCTP_RESET_ASSOC 0x00000902 /* sctp_assoc_t */ 546#define SCTP_ADD_STREAMS 0x00000903 /* struct sctp_add_streams */ 547 548struct sctp_initmsg { 549 uint16_t sinit_num_ostreams; 550 uint16_t sinit_max_instreams; 551 uint16_t sinit_max_attempts; 552 uint16_t sinit_max_init_timeo; 553}; 554 555struct sctp_rtoinfo { 556 sctp_assoc_t srto_assoc_id; 557 uint32_t srto_initial; 558 uint32_t srto_max; 559 uint32_t srto_min; 560}; 561 562struct sctp_assocparams { 563 sctp_assoc_t sasoc_assoc_id; 564 uint32_t sasoc_peer_rwnd; 565 uint32_t sasoc_local_rwnd; 566 uint32_t sasoc_cookie_life; 567 uint16_t sasoc_asocmaxrxt; 568 uint16_t sasoc_number_peer_destinations; 569}; 570 571struct sctp_setprim { 572 struct sockaddr_storage ssp_addr; 573 sctp_assoc_t ssp_assoc_id; 574 uint8_t ssp_padding[4]; 575}; 576 577struct sctp_setadaptation { 578 uint32_t ssb_adaptation_ind; 579}; 580 581struct sctp_paddrparams { 582 struct sockaddr_storage spp_address; 583 sctp_assoc_t spp_assoc_id; 584 uint32_t spp_hbinterval; 585 uint32_t spp_pathmtu; 586 uint32_t spp_flags; 587 uint32_t spp_ipv6_flowlabel; 588 uint16_t spp_pathmaxrxt; 589 uint8_t spp_dscp; 590}; 591 592#define SPP_HB_ENABLE 0x00000001 593#define SPP_HB_DISABLE 0x00000002 594#define SPP_HB_DEMAND 0x00000004 595#define SPP_PMTUD_ENABLE 0x00000008 596#define SPP_PMTUD_DISABLE 0x00000010 597#define SPP_HB_TIME_IS_ZERO 0x00000080 598#define SPP_IPV6_FLOWLABEL 0x00000100 599#define SPP_DSCP 0x00000200 600 601/* Used for SCTP_MAXSEG, SCTP_MAX_BURST, SCTP_ENABLE_STREAM_RESET, and SCTP_CONTEXT */ 602struct sctp_assoc_value { 603 sctp_assoc_t assoc_id; 604 uint32_t assoc_value; 605}; 606 607/* To enable stream reset */ 608#define SCTP_ENABLE_RESET_STREAM_REQ 0x00000001 609#define SCTP_ENABLE_RESET_ASSOC_REQ 0x00000002 610#define SCTP_ENABLE_CHANGE_ASSOC_REQ 0x00000004 611#define SCTP_ENABLE_VALUE_MASK 0x00000007 612 613struct sctp_reset_streams { 614 sctp_assoc_t srs_assoc_id; 615 uint16_t srs_flags; 616 uint16_t srs_number_streams; /* 0 == ALL */ 617 uint16_t srs_stream_list[]; /* list if strrst_num_streams is not 0 */ 618}; 619 620struct sctp_add_streams { 621 sctp_assoc_t sas_assoc_id; 622 uint16_t sas_instrms; 623 uint16_t sas_outstrms; 624}; 625 626struct sctp_hmacalgo { 627 uint32_t shmac_number_of_idents; 628 uint16_t shmac_idents[]; 629}; 630 631/* AUTH hmac_id */ 632#define SCTP_AUTH_HMAC_ID_RSVD 0x0000 633#define SCTP_AUTH_HMAC_ID_SHA1 0x0001 /* default, mandatory */ 634#define SCTP_AUTH_HMAC_ID_SHA256 0x0003 635#define SCTP_AUTH_HMAC_ID_SHA224 0x0004 636#define SCTP_AUTH_HMAC_ID_SHA384 0x0005 637#define SCTP_AUTH_HMAC_ID_SHA512 0x0006 638 639 640struct sctp_sack_info { 641 sctp_assoc_t sack_assoc_id; 642 uint32_t sack_delay; 643 uint32_t sack_freq; 644}; 645 646struct sctp_default_prinfo { 647 uint16_t pr_policy; 648 uint32_t pr_value; 649 sctp_assoc_t pr_assoc_id; 650}; 651 652struct sctp_paddrinfo { 653 struct sockaddr_storage spinfo_address; 654 sctp_assoc_t spinfo_assoc_id; 655 int32_t spinfo_state; 656 uint32_t spinfo_cwnd; 657 uint32_t spinfo_srtt; 658 uint32_t spinfo_rto; 659 uint32_t spinfo_mtu; 660}; 661 662struct sctp_status { 663 sctp_assoc_t sstat_assoc_id; 664 int32_t sstat_state; 665 uint32_t sstat_rwnd; 666 uint16_t sstat_unackdata; 667 uint16_t sstat_penddata; 668 uint16_t sstat_instrms; 669 uint16_t sstat_outstrms; 670 uint32_t sstat_fragmentation_point; 671 struct sctp_paddrinfo sstat_primary; 672}; 673 674/* 675 * user state values 676 */ 677#define SCTP_CLOSED 0x0000 678#define SCTP_BOUND 0x1000 679#define SCTP_LISTEN 0x2000 680#define SCTP_COOKIE_WAIT 0x0002 681#define SCTP_COOKIE_ECHOED 0x0004 682#define SCTP_ESTABLISHED 0x0008 683#define SCTP_SHUTDOWN_SENT 0x0010 684#define SCTP_SHUTDOWN_RECEIVED 0x0020 685#define SCTP_SHUTDOWN_ACK_SENT 0x0040 686#define SCTP_SHUTDOWN_PENDING 0x0080 687 688 689#define SCTP_ACTIVE 0x0001 /* SCTP_ADDR_REACHABLE */ 690#define SCTP_INACTIVE 0x0002 /* neither SCTP_ADDR_REACHABLE 691 nor SCTP_ADDR_UNCONFIRMED */ 692#define SCTP_UNCONFIRMED 0x0200 /* SCTP_ADDR_UNCONFIRMED */ 693 694struct sctp_authchunks { 695 sctp_assoc_t gauth_assoc_id; 696/* uint32_t gauth_number_of_chunks; not available */ 697 uint8_t gauth_chunks[]; 698}; 699 700struct sctp_assoc_ids { 701 uint32_t gaids_number_of_ids; 702 sctp_assoc_t gaids_assoc_id[]; 703}; 704 705struct sctp_setpeerprim { 706 struct sockaddr_storage sspp_addr; 707 sctp_assoc_t sspp_assoc_id; 708 uint8_t sspp_padding[4]; 709}; 710 711struct sctp_authchunk { 712 uint8_t sauth_chunk; 713}; 714 715 716struct sctp_get_nonce_values { 717 sctp_assoc_t gn_assoc_id; 718 uint32_t gn_peers_tag; 719 uint32_t gn_local_tag; 720}; 721 722 723/* 724 * Main SCTP chunk types 725 */ 726/************0x00 series ***********/ 727#define SCTP_DATA 0x00 728#define SCTP_INITIATION 0x01 729#define SCTP_INITIATION_ACK 0x02 730#define SCTP_SELECTIVE_ACK 0x03 731#define SCTP_HEARTBEAT_REQUEST 0x04 732#define SCTP_HEARTBEAT_ACK 0x05 733#define SCTP_ABORT_ASSOCIATION 0x06 734#define SCTP_SHUTDOWN 0x07 735#define SCTP_SHUTDOWN_ACK 0x08 736#define SCTP_OPERATION_ERROR 0x09 737#define SCTP_COOKIE_ECHO 0x0a 738#define SCTP_COOKIE_ACK 0x0b 739#define SCTP_ECN_ECHO 0x0c 740#define SCTP_ECN_CWR 0x0d 741#define SCTP_SHUTDOWN_COMPLETE 0x0e 742/* RFC4895 */ 743#define SCTP_AUTHENTICATION 0x0f 744/* EY nr_sack chunk id*/ 745#define SCTP_NR_SELECTIVE_ACK 0x10 746/************0x40 series ***********/ 747/************0x80 series ***********/ 748/* RFC5061 */ 749#define SCTP_ASCONF_ACK 0x80 750/* draft-ietf-stewart-pktdrpsctp */ 751#define SCTP_PACKET_DROPPED 0x81 752/* draft-ietf-stewart-strreset-xxx */ 753#define SCTP_STREAM_RESET 0x82 754 755/* RFC4820 */ 756#define SCTP_PAD_CHUNK 0x84 757/************0xc0 series ***********/ 758/* RFC3758 */ 759#define SCTP_FORWARD_CUM_TSN 0xc0 760/* RFC5061 */ 761#define SCTP_ASCONF 0xc1 762 763struct sctp_authkey { 764 sctp_assoc_t sca_assoc_id; 765 uint16_t sca_keynumber; 766 uint16_t sca_keylength; 767 uint8_t sca_key[]; 768}; 769 770struct sctp_authkeyid { 771 sctp_assoc_t scact_assoc_id; 772 uint16_t scact_keynumber; 773}; 774 775struct sctp_cc_option { 776 int option; 777 struct sctp_assoc_value aid_value; 778}; 779 780struct sctp_cwnd_args { 781 struct sctp_nets *net; /* network to */ /* FIXME: LP64 issue */ 782 uint32_t cwnd_new_value; /* cwnd in k */ 783 uint32_t pseudo_cumack; 784 uint16_t inflight; /* flightsize in k */ 785 uint16_t cwnd_augment; /* increment to it */ 786 uint8_t meets_pseudo_cumack; 787 uint8_t need_new_pseudo_cumack; 788 uint8_t cnt_in_send; 789 uint8_t cnt_in_str; 790}; 791 792struct sctp_blk_args { 793 uint32_t onsb; /* in 1k bytes */ 794 uint32_t sndlen; /* len of send being attempted */ 795 uint32_t peer_rwnd; /* rwnd of peer */ 796 uint16_t send_sent_qcnt; /* chnk cnt */ 797 uint16_t stream_qcnt; /* chnk cnt */ 798 uint16_t chunks_on_oque; /* chunks out */ 799 uint16_t flight_size; /* flight size in k */ 800}; 801 802struct sctp_timeouts { 803 sctp_assoc_t stimo_assoc_id; 804 uint32_t stimo_init; 805 uint32_t stimo_data; 806 uint32_t stimo_sack; 807 uint32_t stimo_shutdown; 808 uint32_t stimo_heartbeat; 809 uint32_t stimo_cookie; 810 uint32_t stimo_shutdownack; 811}; 812 813 814/* Standard TCP Congestion Control */ 815#define SCTP_CC_RFC2581 0x00000000 816/* High Speed TCP Congestion Control (Floyd) */ 817#define SCTP_CC_HSTCP 0x00000001 818/* HTCP Congestion Control */ 819#define SCTP_CC_HTCP 0x00000002 820/* RTCC Congestion Control - RFC2581 plus */ 821#define SCTP_CC_RTCC 0x00000003 822 823#define SCTP_CC_OPT_RTCC_SETMODE 0x00002000 824#define SCTP_CC_OPT_USE_DCCC_EC 0x00002001 825#define SCTP_CC_OPT_STEADY_STEP 0x00002002 826 827#define SCTP_CMT_OFF 0 828#define SCTP_CMT_BASE 1 829#define SCTP_CMT_RPV1 2 830#define SCTP_CMT_RPV2 3 831#define SCTP_CMT_MPTCP 4 832#define SCTP_CMT_MAX SCTP_CMT_MPTCP 833 834/* RS - Supported stream scheduling modules for pluggable 835 * stream scheduling 836 */ 837/* Default simple round-robin */ 838#define SCTP_SS_DEFAULT 0x00000000 839/* Real round-robin */ 840#define SCTP_SS_ROUND_ROBIN 0x00000001 841/* Real round-robin per packet */ 842#define SCTP_SS_ROUND_ROBIN_PACKET 0x00000002 843/* Priority */ 844#define SCTP_SS_PRIORITY 0x00000003 845/* Fair Bandwidth */ 846#define SCTP_SS_FAIR_BANDWITH 0x00000004 847/* First-come, first-serve */ 848#define SCTP_SS_FIRST_COME 0x00000005 849 850/******************** System calls *************/ 851 852void 853usrsctp_init(uint16_t, 854 int (*)(void *addr, void *buffer, size_t length, uint8_t tos, uint8_t set_df), 855 void (*)(const char *format, ...)); 856 857struct socket * 858usrsctp_socket(int domain, int type, int protocol, 859 int (*receive_cb)(struct socket *sock, union sctp_sockstore addr, void *data, 860 size_t datalen, struct sctp_rcvinfo, int flags, void *ulp_info), 861 int (*send_cb)(struct socket *sock, uint32_t sb_free), 862 uint32_t sb_threshold, 863 void *ulp_info); 864 865int 866usrsctp_setsockopt(struct socket *so, 867 int level, 868 int option_name, 869 const void *option_value, 870 socklen_t option_len); 871 872int 873usrsctp_getsockopt(struct socket *so, 874 int level, 875 int option_name, 876 void *option_value, 877 socklen_t *option_len); 878 879int 880usrsctp_getpaddrs(struct socket *so, 881 sctp_assoc_t id, 882 struct sockaddr **raddrs); 883 884void 885usrsctp_freepaddrs(struct sockaddr *addrs); 886 887int 888usrsctp_getladdrs(struct socket *so, 889 sctp_assoc_t id, 890 struct sockaddr **raddrs); 891 892void 893usrsctp_freeladdrs(struct sockaddr *addrs); 894 895ssize_t 896usrsctp_sendv(struct socket *so, 897 const void *data, 898 size_t len, 899 struct sockaddr *to, 900 int addrcnt, 901 void *info, 902 socklen_t infolen, 903 unsigned int infotype, 904 int flags); 905 906ssize_t 907usrsctp_recvv(struct socket *so, 908 void *dbuf, 909 size_t len, 910 struct sockaddr *from, 911 socklen_t * fromlen, 912 void *info, 913 socklen_t *infolen, 914 unsigned int *infotype, 915 int *msg_flags); 916 917int 918usrsctp_bind(struct socket *so, 919 struct sockaddr *name, 920 socklen_t namelen); 921 922#define SCTP_BINDX_ADD_ADDR 0x00008001 923#define SCTP_BINDX_REM_ADDR 0x00008002 924 925int 926usrsctp_bindx(struct socket *so, 927 struct sockaddr *addrs, 928 int addrcnt, 929 int flags); 930 931int 932usrsctp_listen(struct socket *so, 933 int backlog); 934 935struct socket * 936usrsctp_accept(struct socket *so, 937 struct sockaddr * aname, 938 socklen_t * anamelen); 939 940struct socket * 941usrsctp_peeloff(struct socket *, sctp_assoc_t); 942 943int 944usrsctp_connect(struct socket *so, 945 struct sockaddr *name, 946 socklen_t namelen); 947 948int 949usrsctp_connectx(struct socket *so, 950 const struct sockaddr *addrs, int addrcnt, 951 sctp_assoc_t *id); 952 953void 954usrsctp_close(struct socket *so); 955 956int 957usrsctp_finish(void); 958 959int 960usrsctp_shutdown(struct socket *so, int how); 961 962void 963usrsctp_conninput(void *, const void *, size_t, uint8_t); 964 965int 966usrsctp_set_non_blocking(struct socket *, int); 967 968int 969usrsctp_get_non_blocking(struct socket *); 970 971void 972usrsctp_register_address(void *); 973 974void 975usrsctp_deregister_address(void *); 976 977#define SCTP_DUMP_OUTBOUND 1 978#define SCTP_DUMP_INBOUND 0 979 980char * 981usrsctp_dumppacket(void *, size_t, int); 982 983void 984usrsctp_freedumpbuffer(char *); 985 986#define USRSCTP_SYSCTL_DECL(__field) \ 987void usrsctp_sysctl_set_ ## __field(uint32_t value);\ 988uint32_t usrsctp_sysctl_get_ ## __field(void); 989 990USRSCTP_SYSCTL_DECL(sctp_sendspace) 991USRSCTP_SYSCTL_DECL(sctp_recvspace) 992USRSCTP_SYSCTL_DECL(sctp_auto_asconf) 993USRSCTP_SYSCTL_DECL(sctp_multiple_asconfs) 994USRSCTP_SYSCTL_DECL(sctp_ecn_enable) 995USRSCTP_SYSCTL_DECL(sctp_pr_enable) 996USRSCTP_SYSCTL_DECL(sctp_auth_enable) 997USRSCTP_SYSCTL_DECL(sctp_asconf_enable) 998USRSCTP_SYSCTL_DECL(sctp_reconfig_enable) 999USRSCTP_SYSCTL_DECL(sctp_nrsack_enable) 1000USRSCTP_SYSCTL_DECL(sctp_pktdrop_enable) 1001USRSCTP_SYSCTL_DECL(sctp_strict_sacks) 1002#if !defined(SCTP_WITH_NO_CSUM) 1003USRSCTP_SYSCTL_DECL(sctp_no_csum_on_loopback) 1004#endif 1005USRSCTP_SYSCTL_DECL(sctp_peer_chunk_oh) 1006USRSCTP_SYSCTL_DECL(sctp_max_burst_default) 1007USRSCTP_SYSCTL_DECL(sctp_max_chunks_on_queue) 1008USRSCTP_SYSCTL_DECL(sctp_hashtblsize) 1009USRSCTP_SYSCTL_DECL(sctp_pcbtblsize) 1010USRSCTP_SYSCTL_DECL(sctp_min_split_point) 1011USRSCTP_SYSCTL_DECL(sctp_chunkscale) 1012USRSCTP_SYSCTL_DECL(sctp_delayed_sack_time_default) 1013USRSCTP_SYSCTL_DECL(sctp_sack_freq_default) 1014USRSCTP_SYSCTL_DECL(sctp_system_free_resc_limit) 1015USRSCTP_SYSCTL_DECL(sctp_asoc_free_resc_limit) 1016USRSCTP_SYSCTL_DECL(sctp_heartbeat_interval_default) 1017USRSCTP_SYSCTL_DECL(sctp_pmtu_raise_time_default) 1018USRSCTP_SYSCTL_DECL(sctp_shutdown_guard_time_default) 1019USRSCTP_SYSCTL_DECL(sctp_secret_lifetime_default) 1020USRSCTP_SYSCTL_DECL(sctp_rto_max_default) 1021USRSCTP_SYSCTL_DECL(sctp_rto_min_default) 1022USRSCTP_SYSCTL_DECL(sctp_rto_initial_default) 1023USRSCTP_SYSCTL_DECL(sctp_init_rto_max_default) 1024USRSCTP_SYSCTL_DECL(sctp_valid_cookie_life_default) 1025USRSCTP_SYSCTL_DECL(sctp_init_rtx_max_default) 1026USRSCTP_SYSCTL_DECL(sctp_assoc_rtx_max_default) 1027USRSCTP_SYSCTL_DECL(sctp_path_rtx_max_default) 1028USRSCTP_SYSCTL_DECL(sctp_add_more_threshold) 1029USRSCTP_SYSCTL_DECL(sctp_nr_incoming_streams_default) 1030USRSCTP_SYSCTL_DECL(sctp_nr_outgoing_streams_default) 1031USRSCTP_SYSCTL_DECL(sctp_cmt_on_off) 1032USRSCTP_SYSCTL_DECL(sctp_cmt_use_dac) 1033USRSCTP_SYSCTL_DECL(sctp_use_cwnd_based_maxburst) 1034USRSCTP_SYSCTL_DECL(sctp_nat_friendly) 1035USRSCTP_SYSCTL_DECL(sctp_L2_abc_variable) 1036USRSCTP_SYSCTL_DECL(sctp_mbuf_threshold_count) 1037USRSCTP_SYSCTL_DECL(sctp_do_drain) 1038USRSCTP_SYSCTL_DECL(sctp_hb_maxburst) 1039USRSCTP_SYSCTL_DECL(sctp_abort_if_one_2_one_hits_limit) 1040USRSCTP_SYSCTL_DECL(sctp_strict_data_order) 1041USRSCTP_SYSCTL_DECL(sctp_min_residual) 1042USRSCTP_SYSCTL_DECL(sctp_max_retran_chunk) 1043USRSCTP_SYSCTL_DECL(sctp_logging_level) 1044USRSCTP_SYSCTL_DECL(sctp_default_cc_module) 1045USRSCTP_SYSCTL_DECL(sctp_default_frag_interleave) 1046USRSCTP_SYSCTL_DECL(sctp_mobility_base) 1047USRSCTP_SYSCTL_DECL(sctp_mobility_fasthandoff) 1048USRSCTP_SYSCTL_DECL(sctp_inits_include_nat_friendly) 1049USRSCTP_SYSCTL_DECL(sctp_udp_tunneling_port) 1050USRSCTP_SYSCTL_DECL(sctp_enable_sack_immediately) 1051USRSCTP_SYSCTL_DECL(sctp_vtag_time_wait) 1052USRSCTP_SYSCTL_DECL(sctp_blackhole) 1053USRSCTP_SYSCTL_DECL(sctp_diag_info_code) 1054USRSCTP_SYSCTL_DECL(sctp_fr_max_burst_default) 1055USRSCTP_SYSCTL_DECL(sctp_path_pf_threshold) 1056USRSCTP_SYSCTL_DECL(sctp_default_ss_module) 1057USRSCTP_SYSCTL_DECL(sctp_rttvar_bw) 1058USRSCTP_SYSCTL_DECL(sctp_rttvar_rtt) 1059USRSCTP_SYSCTL_DECL(sctp_rttvar_eqret) 1060USRSCTP_SYSCTL_DECL(sctp_steady_step) 1061USRSCTP_SYSCTL_DECL(sctp_use_dccc_ecn) 1062USRSCTP_SYSCTL_DECL(sctp_buffer_splitting) 1063USRSCTP_SYSCTL_DECL(sctp_initial_cwnd) 1064#ifdef SCTP_DEBUG 1065USRSCTP_SYSCTL_DECL(sctp_debug_on) 1066/* More specific values can be found in sctp_constants, but 1067 * are not considered to be part of the API. 1068 */ 1069#define SCTP_DEBUG_NONE 0x00000000 1070#define SCTP_DEBUG_ALL 0xffffffff 1071#endif 1072#undef USRSCTP_SYSCTL_DECL 1073struct sctp_timeval { 1074 uint32_t tv_sec; 1075 uint32_t tv_usec; 1076}; 1077 1078struct sctpstat { 1079 struct sctp_timeval sctps_discontinuitytime; /* sctpStats 18 (TimeStamp) */ 1080 /* MIB according to RFC 3873 */ 1081 uint32_t sctps_currestab; /* sctpStats 1 (Gauge32) */ 1082 uint32_t sctps_activeestab; /* sctpStats 2 (Counter32) */ 1083 uint32_t sctps_restartestab; 1084 uint32_t sctps_collisionestab; 1085 uint32_t sctps_passiveestab; /* sctpStats 3 (Counter32) */ 1086 uint32_t sctps_aborted; /* sctpStats 4 (Counter32) */ 1087 uint32_t sctps_shutdown; /* sctpStats 5 (Counter32) */ 1088 uint32_t sctps_outoftheblue; /* sctpStats 6 (Counter32) */ 1089 uint32_t sctps_checksumerrors; /* sctpStats 7 (Counter32) */ 1090 uint32_t sctps_outcontrolchunks; /* sctpStats 8 (Counter64) */ 1091 uint32_t sctps_outorderchunks; /* sctpStats 9 (Counter64) */ 1092 uint32_t sctps_outunorderchunks; /* sctpStats 10 (Counter64) */ 1093 uint32_t sctps_incontrolchunks; /* sctpStats 11 (Counter64) */ 1094 uint32_t sctps_inorderchunks; /* sctpStats 12 (Counter64) */ 1095 uint32_t sctps_inunorderchunks; /* sctpStats 13 (Counter64) */ 1096 uint32_t sctps_fragusrmsgs; /* sctpStats 14 (Counter64) */ 1097 uint32_t sctps_reasmusrmsgs; /* sctpStats 15 (Counter64) */ 1098 uint32_t sctps_outpackets; /* sctpStats 16 (Counter64) */ 1099 uint32_t sctps_inpackets; /* sctpStats 17 (Counter64) */ 1100 1101 /* input statistics: */ 1102 uint32_t sctps_recvpackets; /* total input packets */ 1103 uint32_t sctps_recvdatagrams; /* total input datagrams */ 1104 uint32_t sctps_recvpktwithdata; /* total packets that had data */ 1105 uint32_t sctps_recvsacks; /* total input SACK chunks */ 1106 uint32_t sctps_recvdata; /* total input DATA chunks */ 1107 uint32_t sctps_recvdupdata; /* total input duplicate DATA chunks */ 1108 uint32_t sctps_recvheartbeat; /* total input HB chunks */ 1109 uint32_t sctps_recvheartbeatack; /* total input HB-ACK chunks */ 1110 uint32_t sctps_recvecne; /* total input ECNE chunks */ 1111 uint32_t sctps_recvauth; /* total input AUTH chunks */ 1112 uint32_t sctps_recvauthmissing; /* total input chunks missing AUTH */ 1113 uint32_t sctps_recvivalhmacid; /* total number of invalid HMAC ids received */ 1114 uint32_t sctps_recvivalkeyid; /* total number of invalid secret ids received */ 1115 uint32_t sctps_recvauthfailed; /* total number of auth failed */ 1116 uint32_t sctps_recvexpress; /* total fast path receives all one chunk */ 1117 uint32_t sctps_recvexpressm; /* total fast path multi-part data */ 1118 uint32_t sctps_recvnocrc; 1119 uint32_t sctps_recvswcrc; 1120 uint32_t sctps_recvhwcrc; 1121 1122 /* output statistics: */ 1123 uint32_t sctps_sendpackets; /* total output packets */ 1124 uint32_t sctps_sendsacks; /* total output SACKs */ 1125 uint32_t sctps_senddata; /* total output DATA chunks */ 1126 uint32_t sctps_sendretransdata; /* total output retransmitted DATA chunks */ 1127 uint32_t sctps_sendfastretrans; /* total output fast retransmitted DATA chunks */ 1128 uint32_t sctps_sendmultfastretrans; /* total FR's that happened more than once 1129 * to same chunk (u-del multi-fr algo). 1130 */ 1131 uint32_t sctps_sendheartbeat; /* total output HB chunks */ 1132 uint32_t sctps_sendecne; /* total output ECNE chunks */ 1133 uint32_t sctps_sendauth; /* total output AUTH chunks FIXME */ 1134 uint32_t sctps_senderrors; /* ip_output error counter */ 1135 uint32_t sctps_sendnocrc; 1136 uint32_t sctps_sendswcrc; 1137 uint32_t sctps_sendhwcrc; 1138 /* PCKDROPREP statistics: */ 1139 uint32_t sctps_pdrpfmbox; /* Packet drop from middle box */ 1140 uint32_t sctps_pdrpfehos; /* P-drop from end host */ 1141 uint32_t sctps_pdrpmbda; /* P-drops with data */ 1142 uint32_t sctps_pdrpmbct; /* P-drops, non-data, non-endhost */ 1143 uint32_t sctps_pdrpbwrpt; /* P-drop, non-endhost, bandwidth rep only */ 1144 uint32_t sctps_pdrpcrupt; /* P-drop, not enough for chunk header */ 1145 uint32_t sctps_pdrpnedat; /* P-drop, not enough data to confirm */ 1146 uint32_t sctps_pdrppdbrk; /* P-drop, where process_chunk_drop said break */ 1147 uint32_t sctps_pdrptsnnf; /* P-drop, could not find TSN */ 1148 uint32_t sctps_pdrpdnfnd; /* P-drop, attempt reverse TSN lookup */ 1149 uint32_t sctps_pdrpdiwnp; /* P-drop, e-host confirms zero-rwnd */ 1150 uint32_t sctps_pdrpdizrw; /* P-drop, midbox confirms no space */ 1151 uint32_t sctps_pdrpbadd; /* P-drop, data did not match TSN */ 1152 uint32_t sctps_pdrpmark; /* P-drop, TSN's marked for Fast Retran */ 1153 /* timeouts */ 1154 uint32_t sctps_timoiterator; /* Number of iterator timers that fired */ 1155 uint32_t sctps_timodata; /* Number of T3 data time outs */ 1156 uint32_t sctps_timowindowprobe; /* Number of window probe (T3) timers that fired */ 1157 uint32_t sctps_timoinit; /* Number of INIT timers that fired */ 1158 uint32_t sctps_timosack; /* Number of sack timers that fired */ 1159 uint32_t sctps_timoshutdown; /* Number of shutdown timers that fired */ 1160 uint32_t sctps_timoheartbeat; /* Number of heartbeat timers that fired */ 1161 uint32_t sctps_timocookie; /* Number of times a cookie timeout fired */ 1162 uint32_t sctps_timosecret; /* Number of times an endpoint changed its cookie secret*/ 1163 uint32_t sctps_timopathmtu; /* Number of PMTU timers that fired */ 1164 uint32_t sctps_timoshutdownack; /* Number of shutdown ack timers that fired */ 1165 uint32_t sctps_timoshutdownguard; /* Number of shutdown guard timers that fired */ 1166 uint32_t sctps_timostrmrst; /* Number of stream reset timers that fired */ 1167 uint32_t sctps_timoearlyfr; /* Number of early FR timers that fired */ 1168 uint32_t sctps_timoasconf; /* Number of times an asconf timer fired */ 1169 uint32_t sctps_timodelprim; /* Number of times a prim_deleted timer fired */ 1170 uint32_t sctps_timoautoclose; /* Number of times auto close timer fired */ 1171 uint32_t sctps_timoassockill; /* Number of asoc free timers expired */ 1172 uint32_t sctps_timoinpkill; /* Number of inp free timers expired */ 1173 /* former early FR counters */ 1174 uint32_t sctps_spare[11]; 1175 /* others */ 1176 uint32_t sctps_hdrops; /* packet shorter than header */ 1177 uint32_t sctps_badsum; /* checksum error */ 1178 uint32_t sctps_noport; /* no endpoint for port */ 1179 uint32_t sctps_badvtag; /* bad v-tag */ 1180 uint32_t sctps_badsid; /* bad SID */ 1181 uint32_t sctps_nomem; /* no memory */ 1182 uint32_t sctps_fastretransinrtt; /* number of multiple FR in a RTT window */ 1183 uint32_t sctps_markedretrans; 1184 uint32_t sctps_naglesent; /* nagle allowed sending */ 1185 uint32_t sctps_naglequeued; /* nagle doesn't allow sending */ 1186 uint32_t sctps_maxburstqueued; /* max burst doesn't allow sending */ 1187 uint32_t sctps_ifnomemqueued; /* look ahead tells us no memory in 1188 * interface ring buffer OR we had a 1189 * send error and are queuing one send. 1190 */ 1191 uint32_t sctps_windowprobed; /* total number of window probes sent */ 1192 uint32_t sctps_lowlevelerr; /* total times an output error causes us 1193 * to clamp down on next user send. 1194 */ 1195 uint32_t sctps_lowlevelerrusr; /* total times sctp_senderrors were caused from 1196 * a user send from a user invoked send not 1197 * a sack response 1198 */ 1199 uint32_t sctps_datadropchklmt; /* Number of in data drops due to chunk limit reached */ 1200 uint32_t sctps_datadroprwnd; /* Number of in data drops due to rwnd limit reached */ 1201 uint32_t sctps_ecnereducedcwnd; /* Number of times a ECN reduced the cwnd */ 1202 uint32_t sctps_vtagexpress; /* Used express lookup via vtag */ 1203 uint32_t sctps_vtagbogus; /* Collision in express lookup. */ 1204 uint32_t sctps_primary_randry; /* Number of times the sender ran dry of user data on primary */ 1205 uint32_t sctps_cmt_randry; /* Same for above */ 1206 uint32_t sctps_slowpath_sack; /* Sacks the slow way */ 1207 uint32_t sctps_wu_sacks_sent; /* Window Update only sacks sent */ 1208 uint32_t sctps_sends_with_flags; /* number of sends with sinfo_flags !=0 */ 1209 uint32_t sctps_sends_with_unord; /* number of unordered sends */ 1210 uint32_t sctps_sends_with_eof; /* number of sends with EOF flag set */ 1211 uint32_t sctps_sends_with_abort; /* number of sends with ABORT flag set */ 1212 uint32_t sctps_protocol_drain_calls;/* number of times protocol drain called */ 1213 uint32_t sctps_protocol_drains_done;/* number of times we did a protocol drain */ 1214 uint32_t sctps_read_peeks; /* Number of times recv was called with peek */ 1215 uint32_t sctps_cached_chk; /* Number of cached chunks used */ 1216 uint32_t sctps_cached_strmoq; /* Number of cached stream oq's used */ 1217 uint32_t sctps_left_abandon; /* Number of unread messages abandoned by close */ 1218 uint32_t sctps_send_burst_avoid; /* Unused */ 1219 uint32_t sctps_send_cwnd_avoid; /* Send cwnd full avoidance, already max burst inflight to net */ 1220 uint32_t sctps_fwdtsn_map_over; /* number of map array over-runs via fwd-tsn's */ 1221 uint32_t sctps_queue_upd_ecne; /* Number of times we queued or updated an ECN chunk on send queue */ 1222 uint32_t sctps_reserved[31]; /* Future ABI compat - remove int's from here when adding new */ 1223}; 1224 1225void 1226usrsctp_get_stat(struct sctpstat *); 1227 1228#ifdef _WIN32 1229#ifdef _MSC_VER 1230#pragma warning(default: 4200) 1231#endif 1232#endif 1233#ifdef __cplusplus 1234} 1235#endif 1236#endif 1237