1/*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved. 5 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved. 6 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions are met: 10 * 11 * a) Redistributions of source code must retain the above copyright notice, 12 * this list of conditions and the following disclaimer. 13 * 14 * b) Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in 16 * the documentation and/or other materials provided with the distribution. 17 * 18 * c) Neither the name of Cisco Systems, Inc. nor the names of its 19 * contributors may be used to endorse or promote products derived 20 * from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 24 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 32 * THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35#ifndef _NETINET_SCTP_H_ 36#define _NETINET_SCTP_H_ 37 38#include <sys/types.h> 39 40#define SCTP_PACKED __attribute__((packed)) 41 42/* 43 * SCTP protocol - RFC4960. 44 */ 45struct sctphdr { 46 uint16_t src_port; /* source port */ 47 uint16_t dest_port; /* destination port */ 48 uint32_t v_tag; /* verification tag of packet */ 49 uint32_t checksum; /* CRC32C checksum */ 50 /* chunks follow... */ 51} SCTP_PACKED; 52 53/* 54 * SCTP Chunks 55 */ 56struct sctp_chunkhdr { 57 uint8_t chunk_type; /* chunk type */ 58 uint8_t chunk_flags; /* chunk flags */ 59 uint16_t chunk_length; /* chunk length */ 60 /* optional params follow */ 61} SCTP_PACKED; 62 63/* 64 * SCTP chunk parameters 65 */ 66struct sctp_paramhdr { 67 uint16_t param_type; /* parameter type */ 68 uint16_t param_length; /* parameter length */ 69} SCTP_PACKED; 70 71/* 72 * user socket options: socket API defined 73 */ 74/* 75 * read-write options 76 */ 77#define SCTP_RTOINFO 0x00000001 78#define SCTP_ASSOCINFO 0x00000002 79#define SCTP_INITMSG 0x00000003 80#define SCTP_NODELAY 0x00000004 81#define SCTP_AUTOCLOSE 0x00000005 82#define SCTP_SET_PEER_PRIMARY_ADDR 0x00000006 83#define SCTP_PRIMARY_ADDR 0x00000007 84#define SCTP_ADAPTATION_LAYER 0x00000008 85/* same as above */ 86#define SCTP_ADAPTION_LAYER 0x00000008 87#define SCTP_DISABLE_FRAGMENTS 0x00000009 88#define SCTP_PEER_ADDR_PARAMS 0x0000000a 89#define SCTP_DEFAULT_SEND_PARAM 0x0000000b 90/* ancillary data/notification interest options */ 91#define SCTP_EVENTS 0x0000000c /* deprecated */ 92/* Without this applied we will give V4 and V6 addresses on a V6 socket */ 93#define SCTP_I_WANT_MAPPED_V4_ADDR 0x0000000d 94#define SCTP_MAXSEG 0x0000000e 95#define SCTP_DELAYED_SACK 0x0000000f 96#define SCTP_FRAGMENT_INTERLEAVE 0x00000010 97#define SCTP_PARTIAL_DELIVERY_POINT 0x00000011 98/* authentication support */ 99#define SCTP_AUTH_CHUNK 0x00000012 100#define SCTP_AUTH_KEY 0x00000013 101#define SCTP_HMAC_IDENT 0x00000014 102#define SCTP_AUTH_ACTIVE_KEY 0x00000015 103#define SCTP_AUTH_DELETE_KEY 0x00000016 104#define SCTP_USE_EXT_RCVINFO 0x00000017 105#define SCTP_AUTO_ASCONF 0x00000018 /* rw */ 106#define SCTP_MAXBURST 0x00000019 /* rw */ 107#define SCTP_MAX_BURST 0x00000019 /* rw */ 108/* assoc level context */ 109#define SCTP_CONTEXT 0x0000001a /* rw */ 110/* explicit EOR signalling */ 111#define SCTP_EXPLICIT_EOR 0x0000001b 112#define SCTP_REUSE_PORT 0x0000001c /* rw */ 113#define SCTP_AUTH_DEACTIVATE_KEY 0x0000001d 114#define SCTP_EVENT 0x0000001e 115#define SCTP_RECVRCVINFO 0x0000001f 116#define SCTP_RECVNXTINFO 0x00000020 117#define SCTP_DEFAULT_SNDINFO 0x00000021 118#define SCTP_DEFAULT_PRINFO 0x00000022 119#define SCTP_PEER_ADDR_THLDS 0x00000023 120#define SCTP_REMOTE_UDP_ENCAPS_PORT 0x00000024 121#define SCTP_ECN_SUPPORTED 0x00000025 122#define SCTP_PR_SUPPORTED 0x00000026 123#define SCTP_AUTH_SUPPORTED 0x00000027 124#define SCTP_ASCONF_SUPPORTED 0x00000028 125#define SCTP_RECONFIG_SUPPORTED 0x00000029 126#define SCTP_NRSACK_SUPPORTED 0x00000030 127#define SCTP_PKTDROP_SUPPORTED 0x00000031 128#define SCTP_MAX_CWND 0x00000032 129#define SCTP_ACCEPT_ZERO_CHECKSUM 0x00000033 130 131/* 132 * read-only options 133 */ 134#define SCTP_STATUS 0x00000100 135#define SCTP_GET_PEER_ADDR_INFO 0x00000101 136/* authentication support */ 137#define SCTP_PEER_AUTH_CHUNKS 0x00000102 138#define SCTP_LOCAL_AUTH_CHUNKS 0x00000103 139#define SCTP_GET_ASSOC_NUMBER 0x00000104 /* ro */ 140#define SCTP_GET_ASSOC_ID_LIST 0x00000105 /* ro */ 141#define SCTP_TIMEOUTS 0x00000106 142#define SCTP_PR_STREAM_STATUS 0x00000107 143#define SCTP_PR_ASSOC_STATUS 0x00000108 144 145/* 146 * user socket options: BSD implementation specific 147 */ 148/* 149 * Blocking I/O is enabled on any TCP type socket by default. For the UDP 150 * model if this is turned on then the socket buffer is shared for send 151 * resources amongst all associations. The default for the UDP model is that 152 * is SS_NBIO is set. Which means all associations have a separate send 153 * limit BUT they will NOT ever BLOCK instead you will get an error back 154 * EAGAIN if you try to send too much. If you want the blocking semantics you 155 * set this option at the cost of sharing one socket send buffer size amongst 156 * all associations. Peeled off sockets turn this option off and block. But 157 * since both TCP and peeled off sockets have only one assoc per socket this 158 * is fine. It probably does NOT make sense to set this on SS_NBIO on a TCP 159 * model OR peeled off UDP model, but we do allow you to do so. You just use 160 * the normal syscall to toggle SS_NBIO the way you want. 161 * 162 * Blocking I/O is controlled by the SS_NBIO flag on the socket state so_state 163 * field. 164 */ 165 166#define SCTP_ENABLE_STREAM_RESET 0x00000900 /* struct 167 * sctp_assoc_value */ 168#define SCTP_RESET_STREAMS 0x00000901 /* struct 169 * sctp_reset_streams */ 170#define SCTP_RESET_ASSOC 0x00000902 /* sctp_assoc_t */ 171#define SCTP_ADD_STREAMS 0x00000903 /* struct 172 * sctp_add_streams */ 173 174/* For enable stream reset */ 175#define SCTP_ENABLE_RESET_STREAM_REQ 0x00000001 176#define SCTP_ENABLE_RESET_ASSOC_REQ 0x00000002 177#define SCTP_ENABLE_CHANGE_ASSOC_REQ 0x00000004 178#define SCTP_ENABLE_VALUE_MASK 0x00000007 179/* For reset streams */ 180#define SCTP_STREAM_RESET_INCOMING 0x00000001 181#define SCTP_STREAM_RESET_OUTGOING 0x00000002 182 183/* here on down are more implementation specific */ 184#define SCTP_SET_DEBUG_LEVEL 0x00001005 185#define SCTP_CLR_STAT_LOG 0x00001007 186/* CMT ON/OFF socket option */ 187#define SCTP_CMT_ON_OFF 0x00001200 188#define SCTP_CMT_USE_DAC 0x00001201 189/* JRS - Pluggable Congestion Control Socket option */ 190#define SCTP_PLUGGABLE_CC 0x00001202 191/* RS - Pluggable Stream Scheduling Socket option */ 192#define SCTP_STREAM_SCHEDULER 0x00001203 193#define SCTP_STREAM_SCHEDULER_VALUE 0x00001204 194/* The next two are for backwards compatibility. */ 195#define SCTP_PLUGGABLE_SS SCTP_STREAM_SCHEDULER 196#define SCTP_SS_VALUE SCTP_STREAM_SCHEDULER_VALUE 197#define SCTP_CC_OPTION 0x00001205 /* Options for CC 198 * modules */ 199/* For I-DATA */ 200#define SCTP_INTERLEAVING_SUPPORTED 0x00001206 201 202/* read only */ 203#define SCTP_GET_SNDBUF_USE 0x00001101 204#define SCTP_GET_STAT_LOG 0x00001103 205#define SCTP_PCB_STATUS 0x00001104 206#define SCTP_GET_NONCE_VALUES 0x00001105 207 208/* Special hook for dynamically setting primary for all assoc's, 209 * this is a write only option that requires root privilege. 210 */ 211#define SCTP_SET_DYNAMIC_PRIMARY 0x00002001 212 213/* VRF (virtual router feature) and multi-VRF support 214 * options. VRF's provide splits within a router 215 * that give the views of multiple routers. A 216 * standard host, without VRF support, is just 217 * a single VRF. If VRF's are supported then 218 * the transport must be VRF aware. This means 219 * that every socket call coming in must be directed 220 * within the endpoint to one of the VRF's it belongs 221 * to. The endpoint, before binding, may select 222 * the "default" VRF it is in by using a set socket 223 * option with SCTP_VRF_ID. This will also 224 * get propagated to the default VRF. Once the 225 * endpoint binds an address then it CANNOT add 226 * additional VRF's to become a Multi-VRF endpoint. 227 * 228 * Before BINDING additional VRF's can be added with 229 * the SCTP_ADD_VRF_ID call or deleted with 230 * SCTP_DEL_VRF_ID. 231 * 232 * Associations are ALWAYS contained inside a single 233 * VRF. They cannot reside in two (or more) VRF's. Incoming 234 * packets, assuming the router is VRF aware, can always 235 * tell us what VRF they arrived on. A host not supporting 236 * any VRF's will find that the packets always arrived on the 237 * single VRF that the host has. 238 * 239 */ 240 241#define SCTP_VRF_ID 0x00003001 242#define SCTP_ADD_VRF_ID 0x00003002 243#define SCTP_GET_VRF_IDS 0x00003003 244#define SCTP_GET_ASOC_VRF 0x00003004 245#define SCTP_DEL_VRF_ID 0x00003005 246 247/* 248 * If you enable packet logging you can get 249 * a poor mans ethereal output in binary 250 * form. Note this is a compile option to 251 * the kernel, SCTP_PACKET_LOGGING, and 252 * without it in your kernel you 253 * will get a EOPNOTSUPP 254 */ 255#define SCTP_GET_PACKET_LOG 0x00004001 256 257/* 258 * hidden implementation specific options these are NOT user visible (should 259 * move out of sctp.h) 260 */ 261/* sctp_bindx() flags as hidden socket options */ 262#define SCTP_BINDX_ADD_ADDR 0x00008001 263#define SCTP_BINDX_REM_ADDR 0x00008002 264/* Hidden socket option that gets the addresses */ 265#define SCTP_GET_PEER_ADDRESSES 0x00008003 266#define SCTP_GET_LOCAL_ADDRESSES 0x00008004 267/* return the total count in bytes needed to hold all local addresses bound */ 268#define SCTP_GET_LOCAL_ADDR_SIZE 0x00008005 269/* Return the total count in bytes needed to hold the remote address */ 270#define SCTP_GET_REMOTE_ADDR_SIZE 0x00008006 271/* hidden option for connectx */ 272#define SCTP_CONNECT_X 0x00008007 273/* hidden option for connectx_delayed, part of sendx */ 274#define SCTP_CONNECT_X_DELAYED 0x00008008 275#define SCTP_CONNECT_X_COMPLETE 0x00008009 276/* hidden socket option based sctp_peeloff */ 277#define SCTP_PEELOFF 0x0000800a 278/* the real worker for sctp_getaddrlen() */ 279#define SCTP_GET_ADDR_LEN 0x0000800b 280/* Debug things that need to be purged */ 281#define SCTP_SET_INITIAL_DBG_SEQ 0x00009f00 282 283/* JRS - Supported congestion control modules for pluggable 284 * congestion control 285 */ 286/* Standard TCP Congestion Control */ 287#define SCTP_CC_RFC2581 0x00000000 288/* High Speed TCP Congestion Control (Floyd) */ 289#define SCTP_CC_HSTCP 0x00000001 290/* HTCP Congestion Control */ 291#define SCTP_CC_HTCP 0x00000002 292/* RTCC Congestion Control - RFC2581 plus */ 293#define SCTP_CC_RTCC 0x00000003 294 295#define SCTP_CC_OPT_RTCC_SETMODE 0x00002000 296#define SCTP_CC_OPT_USE_DCCC_ECN 0x00002001 297#define SCTP_CC_OPT_STEADY_STEP 0x00002002 298 299#define SCTP_CMT_OFF 0 300#define SCTP_CMT_BASE 1 301#define SCTP_CMT_RPV1 2 302#define SCTP_CMT_RPV2 3 303#define SCTP_CMT_MPTCP 4 304#define SCTP_CMT_MAX SCTP_CMT_MPTCP 305 306/* RS - Supported stream scheduling modules for pluggable 307 * stream scheduling 308 */ 309/* Default simple round-robin */ 310#define SCTP_SS_DEFAULT 0x00000000 311/* Real round-robin */ 312#define SCTP_SS_RR 0x00000001 313/* Real round-robin per packet */ 314#define SCTP_SS_RR_PKT 0x00000002 315/* Priority */ 316#define SCTP_SS_PRIO 0x00000003 317/* Fair Bandwidth */ 318#define SCTP_SS_FB 0x00000004 319/* First-come, first-serve */ 320#define SCTP_SS_FCFS 0x00000005 321/* The next five are for backwards compatibility. */ 322#define SCTP_SS_ROUND_ROBIN SCTP_SS_RR 323#define SCTP_SS_ROUND_ROBIN_PACKET SCTP_SS_RR_PKT 324#define SCTP_SS_PRIORITY SCTP_SS_PRIO 325#define SCTP_SS_FAIR_BANDWITH SCTP_SS_FB 326#define SCTP_SS_FIRST_COME SCTP_SS_FCFS 327 328/* fragment interleave constants 329 * setting must be one of these or 330 * EINVAL returned. 331 */ 332#define SCTP_FRAG_LEVEL_0 0x00000000 333#define SCTP_FRAG_LEVEL_1 0x00000001 334#define SCTP_FRAG_LEVEL_2 0x00000002 335 336/* 337 * user state values 338 */ 339#define SCTP_CLOSED 0x0000 340#define SCTP_BOUND 0x1000 341#define SCTP_LISTEN 0x2000 342#define SCTP_COOKIE_WAIT 0x0002 343#define SCTP_COOKIE_ECHOED 0x0004 344#define SCTP_ESTABLISHED 0x0008 345#define SCTP_SHUTDOWN_SENT 0x0010 346#define SCTP_SHUTDOWN_RECEIVED 0x0020 347#define SCTP_SHUTDOWN_ACK_SENT 0x0040 348#define SCTP_SHUTDOWN_PENDING 0x0080 349 350/* 351 * SCTP operational error codes (user visible) 352 */ 353#define SCTP_CAUSE_NO_ERROR 0x0000 354#define SCTP_CAUSE_INVALID_STREAM 0x0001 355#define SCTP_CAUSE_MISSING_PARAM 0x0002 356#define SCTP_CAUSE_STALE_COOKIE 0x0003 357#define SCTP_CAUSE_OUT_OF_RESC 0x0004 358#define SCTP_CAUSE_UNRESOLVABLE_ADDR 0x0005 359#define SCTP_CAUSE_UNRECOG_CHUNK 0x0006 360#define SCTP_CAUSE_INVALID_PARAM 0x0007 361#define SCTP_CAUSE_UNRECOG_PARAM 0x0008 362#define SCTP_CAUSE_NO_USER_DATA 0x0009 363#define SCTP_CAUSE_COOKIE_IN_SHUTDOWN 0x000a 364#define SCTP_CAUSE_RESTART_W_NEWADDR 0x000b 365#define SCTP_CAUSE_USER_INITIATED_ABT 0x000c 366#define SCTP_CAUSE_PROTOCOL_VIOLATION 0x000d 367 368/* Error causes from RFC5061 */ 369#define SCTP_CAUSE_DELETING_LAST_ADDR 0x00a0 370#define SCTP_CAUSE_RESOURCE_SHORTAGE 0x00a1 371#define SCTP_CAUSE_DELETING_SRC_ADDR 0x00a2 372#define SCTP_CAUSE_ILLEGAL_ASCONF_ACK 0x00a3 373#define SCTP_CAUSE_REQUEST_REFUSED 0x00a4 374 375/* Error causes from nat-draft */ 376#define SCTP_CAUSE_NAT_COLLIDING_STATE 0x00b0 377#define SCTP_CAUSE_NAT_MISSING_STATE 0x00b1 378 379/* Error causes from RFC4895 */ 380#define SCTP_CAUSE_UNSUPPORTED_HMACID 0x0105 381 382/* 383 * error cause parameters (user visible) 384 */ 385struct sctp_gen_error_cause { 386 uint16_t code; 387 uint16_t length; 388 uint8_t info[]; 389} SCTP_PACKED; 390 391struct sctp_error_cause { 392 uint16_t code; 393 uint16_t length; 394 /* optional cause-specific info may follow */ 395} SCTP_PACKED; 396 397struct sctp_error_invalid_stream { 398 struct sctp_error_cause cause; /* code=SCTP_CAUSE_INVALID_STREAM */ 399 uint16_t stream_id; /* stream id of the DATA in error */ 400 uint16_t reserved; 401} SCTP_PACKED; 402 403struct sctp_error_missing_param { 404 struct sctp_error_cause cause; /* code=SCTP_CAUSE_MISSING_PARAM */ 405 uint32_t num_missing_params; /* number of missing parameters */ 406 uint16_t type[]; 407} SCTP_PACKED; 408 409struct sctp_error_stale_cookie { 410 struct sctp_error_cause cause; /* code=SCTP_CAUSE_STALE_COOKIE */ 411 uint32_t stale_time; /* time in usec of staleness */ 412} SCTP_PACKED; 413 414struct sctp_error_out_of_resource { 415 struct sctp_error_cause cause; /* code=SCTP_CAUSE_OUT_OF_RESOURCES */ 416} SCTP_PACKED; 417 418struct sctp_error_unresolv_addr { 419 struct sctp_error_cause cause; /* code=SCTP_CAUSE_UNRESOLVABLE_ADDR */ 420} SCTP_PACKED; 421 422struct sctp_error_unrecognized_chunk { 423 struct sctp_error_cause cause; /* code=SCTP_CAUSE_UNRECOG_CHUNK */ 424 struct sctp_chunkhdr ch; /* header from chunk in error */ 425} SCTP_PACKED; 426 427struct sctp_error_no_user_data { 428 struct sctp_error_cause cause; /* code=SCTP_CAUSE_NO_USER_DATA */ 429 uint32_t tsn; /* TSN of the empty data chunk */ 430} SCTP_PACKED; 431 432struct sctp_error_auth_invalid_hmac { 433 struct sctp_error_cause cause; /* code=SCTP_CAUSE_UNSUPPORTED_HMACID */ 434 uint16_t hmac_id; 435} SCTP_PACKED; 436 437/* 438 * Main SCTP chunk types we place these here so natd and f/w's in user land 439 * can find them. 440 */ 441/************0x00 series ***********/ 442#define SCTP_DATA 0x00 443#define SCTP_INITIATION 0x01 444#define SCTP_INITIATION_ACK 0x02 445#define SCTP_SELECTIVE_ACK 0x03 446#define SCTP_HEARTBEAT_REQUEST 0x04 447#define SCTP_HEARTBEAT_ACK 0x05 448#define SCTP_ABORT_ASSOCIATION 0x06 449#define SCTP_SHUTDOWN 0x07 450#define SCTP_SHUTDOWN_ACK 0x08 451#define SCTP_OPERATION_ERROR 0x09 452#define SCTP_COOKIE_ECHO 0x0a 453#define SCTP_COOKIE_ACK 0x0b 454#define SCTP_ECN_ECHO 0x0c 455#define SCTP_ECN_CWR 0x0d 456#define SCTP_SHUTDOWN_COMPLETE 0x0e 457/* RFC4895 */ 458#define SCTP_AUTHENTICATION 0x0f 459/* EY nr_sack chunk id*/ 460#define SCTP_NR_SELECTIVE_ACK 0x10 461/************0x40 series ***********/ 462#define SCTP_IDATA 0x40 463/************0x80 series ***********/ 464/* RFC5061 */ 465#define SCTP_ASCONF_ACK 0x80 466/* draft-ietf-stewart-pktdrpsctp */ 467#define SCTP_PACKET_DROPPED 0x81 468/* draft-ietf-stewart-strreset-xxx */ 469#define SCTP_STREAM_RESET 0x82 470 471/* RFC4820 */ 472#define SCTP_PAD_CHUNK 0x84 473/************0xc0 series ***********/ 474/* RFC3758 */ 475#define SCTP_FORWARD_CUM_TSN 0xc0 476/* RFC5061 */ 477#define SCTP_ASCONF 0xc1 478#define SCTP_IFORWARD_CUM_TSN 0xc2 479 480/* ABORT and SHUTDOWN COMPLETE FLAG */ 481#define SCTP_HAD_NO_TCB 0x01 482 483/* Packet dropped flags */ 484#define SCTP_FROM_MIDDLE_BOX SCTP_HAD_NO_TCB 485#define SCTP_BADCRC 0x02 486#define SCTP_PACKET_TRUNCATED 0x04 487 488/* Flag for ECN -CWR */ 489#define SCTP_CWR_REDUCE_OVERRIDE 0x01 490#define SCTP_CWR_IN_SAME_WINDOW 0x02 491 492#define SCTP_SAT_NETWORK_MIN 400 /* min ms for RTT to set satellite 493 * time */ 494#define SCTP_SAT_NETWORK_BURST_INCR 2 /* how many times to multiply maxburst 495 * in sat */ 496 497/* Data Chuck Specific Flags */ 498#define SCTP_DATA_FRAG_MASK 0x03 499#define SCTP_DATA_MIDDLE_FRAG 0x00 500#define SCTP_DATA_LAST_FRAG 0x01 501#define SCTP_DATA_FIRST_FRAG 0x02 502#define SCTP_DATA_NOT_FRAG 0x03 503#define SCTP_DATA_UNORDERED 0x04 504#define SCTP_DATA_SACK_IMMEDIATELY 0x08 505/* ECN Nonce: SACK Chunk Specific Flags */ 506#define SCTP_SACK_NONCE_SUM 0x01 507 508/* CMT DAC algorithm SACK flag */ 509#define SCTP_SACK_CMT_DAC 0x80 510 511/* 512 * PCB flags (in sctp_flags bitmask). 513 * Note the features and flags are meant 514 * for use by netstat. 515 */ 516#define SCTP_PCB_FLAGS_UDPTYPE 0x00000001 517#define SCTP_PCB_FLAGS_TCPTYPE 0x00000002 518#define SCTP_PCB_FLAGS_BOUNDALL 0x00000004 519#define SCTP_PCB_FLAGS_ACCEPTING 0x00000008 520#define SCTP_PCB_FLAGS_UNBOUND 0x00000010 521#define SCTP_PCB_FLAGS_SND_ITERATOR_UP 0x00000020 522#define SCTP_PCB_FLAGS_CLOSE_IP 0x00040000 523#define SCTP_PCB_FLAGS_WAS_CONNECTED 0x00080000 524#define SCTP_PCB_FLAGS_WAS_ABORTED 0x00100000 525/* TCP model support */ 526 527#define SCTP_PCB_FLAGS_CONNECTED 0x00200000 528#define SCTP_PCB_FLAGS_IN_TCPPOOL 0x00400000 529#define SCTP_PCB_FLAGS_DONT_WAKE 0x00800000 530#define SCTP_PCB_FLAGS_WAKEOUTPUT 0x01000000 531#define SCTP_PCB_FLAGS_WAKEINPUT 0x02000000 532#define SCTP_PCB_FLAGS_BOUND_V6 0x04000000 533#define SCTP_PCB_FLAGS_BLOCKING_IO 0x08000000 534#define SCTP_PCB_FLAGS_SOCKET_GONE 0x10000000 535#define SCTP_PCB_FLAGS_SOCKET_ALLGONE 0x20000000 536#define SCTP_PCB_FLAGS_SOCKET_CANT_READ 0x40000000 537 538/* flags to copy to new PCB */ 539#define SCTP_PCB_COPY_FLAGS (SCTP_PCB_FLAGS_BOUNDALL|\ 540 SCTP_PCB_FLAGS_WAKEINPUT|\ 541 SCTP_PCB_FLAGS_BOUND_V6) 542 543/* 544 * PCB Features (in sctp_features bitmask) 545 */ 546#define SCTP_PCB_FLAGS_DO_NOT_PMTUD 0x0000000000000001 547#define SCTP_PCB_FLAGS_EXT_RCVINFO 0x0000000000000002 /* deprecated */ 548#define SCTP_PCB_FLAGS_DONOT_HEARTBEAT 0x0000000000000004 549#define SCTP_PCB_FLAGS_FRAG_INTERLEAVE 0x0000000000000008 550#define SCTP_PCB_FLAGS_INTERLEAVE_STRMS 0x0000000000000010 551#define SCTP_PCB_FLAGS_DO_ASCONF 0x0000000000000020 552#define SCTP_PCB_FLAGS_AUTO_ASCONF 0x0000000000000040 553/* socket options */ 554#define SCTP_PCB_FLAGS_NODELAY 0x0000000000000100 555#define SCTP_PCB_FLAGS_AUTOCLOSE 0x0000000000000200 556#define SCTP_PCB_FLAGS_RECVDATAIOEVNT 0x0000000000000400 /* deprecated */ 557#define SCTP_PCB_FLAGS_RECVASSOCEVNT 0x0000000000000800 558#define SCTP_PCB_FLAGS_RECVPADDREVNT 0x0000000000001000 559#define SCTP_PCB_FLAGS_RECVPEERERR 0x0000000000002000 560#define SCTP_PCB_FLAGS_RECVSENDFAILEVNT 0x0000000000004000 /* deprecated */ 561#define SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT 0x0000000000008000 562#define SCTP_PCB_FLAGS_ADAPTATIONEVNT 0x0000000000010000 563#define SCTP_PCB_FLAGS_PDAPIEVNT 0x0000000000020000 564#define SCTP_PCB_FLAGS_AUTHEVNT 0x0000000000040000 565#define SCTP_PCB_FLAGS_STREAM_RESETEVNT 0x0000000000080000 566#define SCTP_PCB_FLAGS_NO_FRAGMENT 0x0000000000100000 567#define SCTP_PCB_FLAGS_EXPLICIT_EOR 0x0000000000400000 568#define SCTP_PCB_FLAGS_NEEDS_MAPPED_V4 0x0000000000800000 569#define SCTP_PCB_FLAGS_MULTIPLE_ASCONFS 0x0000000001000000 570#define SCTP_PCB_FLAGS_PORTREUSE 0x0000000002000000 571#define SCTP_PCB_FLAGS_DRYEVNT 0x0000000004000000 572#define SCTP_PCB_FLAGS_RECVRCVINFO 0x0000000008000000 573#define SCTP_PCB_FLAGS_RECVNXTINFO 0x0000000010000000 574#define SCTP_PCB_FLAGS_ASSOC_RESETEVNT 0x0000000020000000 575#define SCTP_PCB_FLAGS_STREAM_CHANGEEVNT 0x0000000040000000 576#define SCTP_PCB_FLAGS_RECVNSENDFAILEVNT 0x0000000080000000 577 578/*- 579 * mobility_features parameters (by micchie).Note 580 * these features are applied against the 581 * sctp_mobility_features flags.. not the sctp_features 582 * flags. 583 */ 584#define SCTP_MOBILITY_BASE 0x00000001 585#define SCTP_MOBILITY_FASTHANDOFF 0x00000002 586#define SCTP_MOBILITY_PRIM_DELETED 0x00000004 587 588/* Smallest PMTU allowed when disabling PMTU discovery */ 589#define SCTP_SMALLEST_PMTU 512 590/* Largest PMTU allowed when disabling PMTU discovery */ 591#define SCTP_LARGEST_PMTU 65536 592 593#undef SCTP_PACKED 594 595#include <netinet/sctp_uio.h> 596 597/* This dictates the size of the packet 598 * collection buffer. This only applies 599 * if SCTP_PACKET_LOGGING is enabled in 600 * your config. 601 */ 602#define SCTP_PACKET_LOG_SIZE 65536 603 604/* Maximum delays and such a user can set for options that 605 * take ms. 606 */ 607#define SCTP_MAX_SACK_DELAY 500 /* per RFC4960 */ 608#define SCTP_MAX_HB_INTERVAL 14400000 /* 4 hours in ms */ 609#define SCTP_MIN_COOKIE_LIFE 1000 /* 1 second in ms */ 610#define SCTP_MAX_COOKIE_LIFE 3600000 /* 1 hour in ms */ 611 612/* Types of logging/KTR tracing that can be enabled via the 613 * sysctl net.inet.sctp.sctp_logging. You must also enable 614 * SUBSYS tracing. 615 * Note that you must have the SCTP option in the kernel 616 * to enable these as well. 617 */ 618#define SCTP_BLK_LOGGING_ENABLE 0x00000001 619#define SCTP_CWND_MONITOR_ENABLE 0x00000002 620#define SCTP_CWND_LOGGING_ENABLE 0x00000004 621#define SCTP_FLIGHT_LOGGING_ENABLE 0x00000020 622#define SCTP_FR_LOGGING_ENABLE 0x00000040 623#define SCTP_LOCK_LOGGING_ENABLE 0x00000080 624#define SCTP_MAP_LOGGING_ENABLE 0x00000100 625#define SCTP_MBCNT_LOGGING_ENABLE 0x00000200 626#define SCTP_MBUF_LOGGING_ENABLE 0x00000400 627#define SCTP_NAGLE_LOGGING_ENABLE 0x00000800 628#define SCTP_RECV_RWND_LOGGING_ENABLE 0x00001000 629#define SCTP_RTTVAR_LOGGING_ENABLE 0x00002000 630#define SCTP_SACK_LOGGING_ENABLE 0x00004000 631#define SCTP_SACK_RWND_LOGGING_ENABLE 0x00008000 632#define SCTP_SB_LOGGING_ENABLE 0x00010000 633#define SCTP_STR_LOGGING_ENABLE 0x00020000 634#define SCTP_WAKE_LOGGING_ENABLE 0x00040000 635#define SCTP_LOG_MAXBURST_ENABLE 0x00080000 636#define SCTP_LOG_RWND_ENABLE 0x00100000 637#define SCTP_LOG_SACK_ARRIVALS_ENABLE 0x00200000 638#define SCTP_LTRACE_CHUNK_ENABLE 0x00400000 639#define SCTP_LTRACE_ERROR_ENABLE 0x00800000 640#define SCTP_LAST_PACKET_TRACING 0x01000000 641#define SCTP_THRESHOLD_LOGGING 0x02000000 642#define SCTP_LOG_AT_SEND_2_SCTP 0x04000000 643#define SCTP_LOG_AT_SEND_2_OUTQ 0x08000000 644#define SCTP_LOG_TRY_ADVANCE 0x10000000 645 646#endif /* !_NETINET_SCTP_H_ */ 647