1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/netwerk/sctp/src/netinet/sctp_header.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,639 @@
1.4 +/*-
1.5 + * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
1.6 + * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
1.7 + * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
1.8 + *
1.9 + * Redistribution and use in source and binary forms, with or without
1.10 + * modification, are permitted provided that the following conditions are met:
1.11 + *
1.12 + * a) Redistributions of source code must retain the above copyright notice,
1.13 + * this list of conditions and the following disclaimer.
1.14 + *
1.15 + * b) Redistributions in binary form must reproduce the above copyright
1.16 + * notice, this list of conditions and the following disclaimer in
1.17 + * the documentation and/or other materials provided with the distribution.
1.18 + *
1.19 + * c) Neither the name of Cisco Systems, Inc. nor the names of its
1.20 + * contributors may be used to endorse or promote products derived
1.21 + * from this software without specific prior written permission.
1.22 + *
1.23 + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1.24 + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
1.25 + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.26 + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
1.27 + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.28 + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
1.29 + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
1.30 + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
1.31 + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1.32 + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
1.33 + * THE POSSIBILITY OF SUCH DAMAGE.
1.34 + */
1.35 +
1.36 +#ifdef __FreeBSD__
1.37 +#include <sys/cdefs.h>
1.38 +__FBSDID("$FreeBSD: head/sys/netinet/sctp_header.h 240198 2012-09-07 13:36:42Z tuexen $");
1.39 +#endif
1.40 +
1.41 +#ifndef _NETINET_SCTP_HEADER_H_
1.42 +#define _NETINET_SCTP_HEADER_H_
1.43 +
1.44 +#if defined(__Windows__) && !defined(__Userspace_os_Windows)
1.45 +#include <packon.h>
1.46 +#endif
1.47 +#if !defined(__Userspace_os_Windows)
1.48 +#include <sys/time.h>
1.49 +#endif
1.50 +#include <netinet/sctp.h>
1.51 +#include <netinet/sctp_constants.h>
1.52 +
1.53 +#if !defined(__Userspace_os_Windows)
1.54 +#define SCTP_PACKED __attribute__((packed))
1.55 +#else
1.56 +#pragma pack (push, 1)
1.57 +#define SCTP_PACKED
1.58 +#endif
1.59 +
1.60 +/*
1.61 + * Parameter structures
1.62 + */
1.63 +struct sctp_ipv4addr_param {
1.64 + struct sctp_paramhdr ph;/* type=SCTP_IPV4_PARAM_TYPE, len=8 */
1.65 + uint32_t addr; /* IPV4 address */
1.66 +} SCTP_PACKED;
1.67 +
1.68 +#define SCTP_V6_ADDR_BYTES 16
1.69 +
1.70 +
1.71 +struct sctp_ipv6addr_param {
1.72 + struct sctp_paramhdr ph;/* type=SCTP_IPV6_PARAM_TYPE, len=20 */
1.73 + uint8_t addr[SCTP_V6_ADDR_BYTES]; /* IPV6 address */
1.74 +} SCTP_PACKED;
1.75 +
1.76 +/* Cookie Preservative */
1.77 +struct sctp_cookie_perserve_param {
1.78 + struct sctp_paramhdr ph;/* type=SCTP_COOKIE_PRESERVE, len=8 */
1.79 + uint32_t time; /* time in ms to extend cookie */
1.80 +} SCTP_PACKED;
1.81 +
1.82 +#define SCTP_ARRAY_MIN_LEN 1
1.83 +/* Host Name Address */
1.84 +struct sctp_host_name_param {
1.85 + struct sctp_paramhdr ph;/* type=SCTP_HOSTNAME_ADDRESS */
1.86 + char name[SCTP_ARRAY_MIN_LEN]; /* host name */
1.87 +} SCTP_PACKED;
1.88 +
1.89 +/*
1.90 + * This is the maximum padded size of a s-a-p
1.91 + * so paramheadr + 3 address types (6 bytes) + 2 byte pad = 12
1.92 + */
1.93 +#define SCTP_MAX_ADDR_PARAMS_SIZE 12
1.94 +/* supported address type */
1.95 +struct sctp_supported_addr_param {
1.96 + struct sctp_paramhdr ph;/* type=SCTP_SUPPORTED_ADDRTYPE */
1.97 + uint16_t addr_type[2]; /* array of supported address types */
1.98 +} SCTP_PACKED;
1.99 +
1.100 +/* ECN parameter */
1.101 +struct sctp_ecn_supported_param {
1.102 + struct sctp_paramhdr ph;/* type=SCTP_ECN_CAPABLE */
1.103 +} SCTP_PACKED;
1.104 +
1.105 +
1.106 +/* heartbeat info parameter */
1.107 +struct sctp_heartbeat_info_param {
1.108 + struct sctp_paramhdr ph;
1.109 + uint32_t time_value_1;
1.110 + uint32_t time_value_2;
1.111 + uint32_t random_value1;
1.112 + uint32_t random_value2;
1.113 + uint8_t addr_family;
1.114 + uint8_t addr_len;
1.115 + /* make sure that this structure is 4 byte aligned */
1.116 + uint8_t padding[2];
1.117 + char address[SCTP_ADDRMAX];
1.118 +} SCTP_PACKED;
1.119 +
1.120 +
1.121 +/* draft-ietf-tsvwg-prsctp */
1.122 +/* PR-SCTP supported parameter */
1.123 +struct sctp_prsctp_supported_param {
1.124 + struct sctp_paramhdr ph;
1.125 +} SCTP_PACKED;
1.126 +
1.127 +
1.128 +/* draft-ietf-tsvwg-addip-sctp */
1.129 +struct sctp_asconf_paramhdr { /* an ASCONF "parameter" */
1.130 + struct sctp_paramhdr ph;/* a SCTP parameter header */
1.131 + uint32_t correlation_id;/* correlation id for this param */
1.132 +} SCTP_PACKED;
1.133 +
1.134 +struct sctp_asconf_addr_param { /* an ASCONF address parameter */
1.135 + struct sctp_asconf_paramhdr aph; /* asconf "parameter" */
1.136 + struct sctp_ipv6addr_param addrp; /* max storage size */
1.137 +} SCTP_PACKED;
1.138 +
1.139 +
1.140 +struct sctp_asconf_tag_param { /* an ASCONF NAT-Vtag parameter */
1.141 + struct sctp_asconf_paramhdr aph; /* asconf "parameter" */
1.142 + uint32_t local_vtag;
1.143 + uint32_t remote_vtag;
1.144 +} SCTP_PACKED;
1.145 +
1.146 +
1.147 +struct sctp_asconf_addrv4_param { /* an ASCONF address (v4) parameter */
1.148 + struct sctp_asconf_paramhdr aph; /* asconf "parameter" */
1.149 + struct sctp_ipv4addr_param addrp; /* max storage size */
1.150 +} SCTP_PACKED;
1.151 +
1.152 +#define SCTP_MAX_SUPPORTED_EXT 256
1.153 +
1.154 +struct sctp_supported_chunk_types_param {
1.155 + struct sctp_paramhdr ph;/* type = 0x8008 len = x */
1.156 + uint8_t chunk_types[];
1.157 +} SCTP_PACKED;
1.158 +
1.159 +
1.160 +/*
1.161 + * Structures for DATA chunks
1.162 + */
1.163 +struct sctp_data {
1.164 + uint32_t tsn;
1.165 + uint16_t stream_id;
1.166 + uint16_t stream_sequence;
1.167 + uint32_t protocol_id;
1.168 + /* user data follows */
1.169 +} SCTP_PACKED;
1.170 +
1.171 +struct sctp_data_chunk {
1.172 + struct sctp_chunkhdr ch;
1.173 + struct sctp_data dp;
1.174 +} SCTP_PACKED;
1.175 +
1.176 +/*
1.177 + * Structures for the control chunks
1.178 + */
1.179 +
1.180 +/* Initiate (INIT)/Initiate Ack (INIT ACK) */
1.181 +struct sctp_init {
1.182 + uint32_t initiate_tag; /* initiate tag */
1.183 + uint32_t a_rwnd; /* a_rwnd */
1.184 + uint16_t num_outbound_streams; /* OS */
1.185 + uint16_t num_inbound_streams; /* MIS */
1.186 + uint32_t initial_tsn; /* I-TSN */
1.187 + /* optional param's follow */
1.188 +} SCTP_PACKED;
1.189 +#define SCTP_IDENTIFICATION_SIZE 16
1.190 +#define SCTP_ADDRESS_SIZE 4
1.191 +#if defined(__Userspace__)
1.192 +#define SCTP_RESERVE_SPACE 5
1.193 +#else
1.194 +#define SCTP_RESERVE_SPACE 6
1.195 +#endif
1.196 +/* state cookie header */
1.197 +struct sctp_state_cookie { /* this is our definition... */
1.198 + uint8_t identification[SCTP_IDENTIFICATION_SIZE];/* id of who we are */
1.199 + struct timeval time_entered; /* the time I built cookie */
1.200 + uint32_t cookie_life; /* life I will award this cookie */
1.201 + uint32_t tie_tag_my_vtag; /* my tag in old association */
1.202 +
1.203 + uint32_t tie_tag_peer_vtag; /* peers tag in old association */
1.204 + uint32_t peers_vtag; /* peers tag in INIT (for quick ref) */
1.205 +
1.206 + uint32_t my_vtag; /* my tag in INIT-ACK (for quick ref) */
1.207 + uint32_t address[SCTP_ADDRESS_SIZE]; /* 4 ints/128 bits */
1.208 + uint32_t addr_type; /* address type */
1.209 + uint32_t laddress[SCTP_ADDRESS_SIZE]; /* my local from address */
1.210 + uint32_t laddr_type; /* my local from address type */
1.211 + uint32_t scope_id; /* v6 scope id for link-locals */
1.212 +
1.213 + uint16_t peerport; /* port address of the peer in the INIT */
1.214 + uint16_t myport; /* my port address used in the INIT */
1.215 + uint8_t ipv4_addr_legal;/* Are V4 addr legal? */
1.216 + uint8_t ipv6_addr_legal;/* Are V6 addr legal? */
1.217 +#if defined(__Userspace__)
1.218 + uint8_t conn_addr_legal;
1.219 +#endif
1.220 + uint8_t local_scope; /* IPv6 local scope flag */
1.221 + uint8_t site_scope; /* IPv6 site scope flag */
1.222 +
1.223 + uint8_t ipv4_scope; /* IPv4 private addr scope */
1.224 + uint8_t loopback_scope; /* loopback scope information */
1.225 + uint8_t reserved[SCTP_RESERVE_SPACE]; /* Align to 64 bits */
1.226 + /*
1.227 + * at the end is tacked on the INIT chunk and the INIT-ACK chunk
1.228 + * (minus the cookie).
1.229 + */
1.230 +} SCTP_PACKED;
1.231 +
1.232 +
1.233 +/* Used for NAT state error cause */
1.234 +struct sctp_missing_nat_state {
1.235 + uint16_t cause;
1.236 + uint16_t length;
1.237 + uint8_t data[];
1.238 +} SCTP_PACKED;
1.239 +
1.240 +
1.241 +struct sctp_inv_mandatory_param {
1.242 + uint16_t cause;
1.243 + uint16_t length;
1.244 + uint32_t num_param;
1.245 + uint16_t param;
1.246 + /*
1.247 + * We include this to 0 it since only a missing cookie will cause
1.248 + * this error.
1.249 + */
1.250 + uint16_t resv;
1.251 +} SCTP_PACKED;
1.252 +
1.253 +struct sctp_unresolv_addr {
1.254 + uint16_t cause;
1.255 + uint16_t length;
1.256 + uint16_t addr_type;
1.257 + uint16_t reserved; /* Only one invalid addr type */
1.258 +} SCTP_PACKED;
1.259 +
1.260 +/* state cookie parameter */
1.261 +struct sctp_state_cookie_param {
1.262 + struct sctp_paramhdr ph;
1.263 + struct sctp_state_cookie cookie;
1.264 +} SCTP_PACKED;
1.265 +
1.266 +struct sctp_init_chunk {
1.267 + struct sctp_chunkhdr ch;
1.268 + struct sctp_init init;
1.269 +} SCTP_PACKED;
1.270 +
1.271 +struct sctp_init_msg {
1.272 + struct sctphdr sh;
1.273 + struct sctp_init_chunk msg;
1.274 +} SCTP_PACKED;
1.275 +
1.276 +/* ... used for both INIT and INIT ACK */
1.277 +#define sctp_init_ack sctp_init
1.278 +#define sctp_init_ack_chunk sctp_init_chunk
1.279 +#define sctp_init_ack_msg sctp_init_msg
1.280 +
1.281 +
1.282 +/* Selective Ack (SACK) */
1.283 +struct sctp_gap_ack_block {
1.284 + uint16_t start; /* Gap Ack block start */
1.285 + uint16_t end; /* Gap Ack block end */
1.286 +} SCTP_PACKED;
1.287 +
1.288 +struct sctp_sack {
1.289 + uint32_t cum_tsn_ack; /* cumulative TSN Ack */
1.290 + uint32_t a_rwnd; /* updated a_rwnd of sender */
1.291 + uint16_t num_gap_ack_blks; /* number of Gap Ack blocks */
1.292 + uint16_t num_dup_tsns; /* number of duplicate TSNs */
1.293 + /* struct sctp_gap_ack_block's follow */
1.294 + /* uint32_t duplicate_tsn's follow */
1.295 +} SCTP_PACKED;
1.296 +
1.297 +struct sctp_sack_chunk {
1.298 + struct sctp_chunkhdr ch;
1.299 + struct sctp_sack sack;
1.300 +} SCTP_PACKED;
1.301 +
1.302 +struct sctp_nr_sack {
1.303 + uint32_t cum_tsn_ack; /* cumulative TSN Ack */
1.304 + uint32_t a_rwnd; /* updated a_rwnd of sender */
1.305 + uint16_t num_gap_ack_blks; /* number of Gap Ack blocks */
1.306 + uint16_t num_nr_gap_ack_blks; /* number of NR Gap Ack blocks */
1.307 + uint16_t num_dup_tsns; /* number of duplicate TSNs */
1.308 + uint16_t reserved; /* not currently used*/
1.309 + /* struct sctp_gap_ack_block's follow */
1.310 + /* uint32_t duplicate_tsn's follow */
1.311 +} SCTP_PACKED;
1.312 +
1.313 +struct sctp_nr_sack_chunk {
1.314 + struct sctp_chunkhdr ch;
1.315 + struct sctp_nr_sack nr_sack;
1.316 +} SCTP_PACKED;
1.317 +
1.318 +
1.319 +/* Heartbeat Request (HEARTBEAT) */
1.320 +struct sctp_heartbeat {
1.321 + struct sctp_heartbeat_info_param hb_info;
1.322 +} SCTP_PACKED;
1.323 +
1.324 +struct sctp_heartbeat_chunk {
1.325 + struct sctp_chunkhdr ch;
1.326 + struct sctp_heartbeat heartbeat;
1.327 +} SCTP_PACKED;
1.328 +
1.329 +/* ... used for Heartbeat Ack (HEARTBEAT ACK) */
1.330 +#define sctp_heartbeat_ack sctp_heartbeat
1.331 +#define sctp_heartbeat_ack_chunk sctp_heartbeat_chunk
1.332 +
1.333 +
1.334 +/* Abort Asssociation (ABORT) */
1.335 +struct sctp_abort_chunk {
1.336 + struct sctp_chunkhdr ch;
1.337 + /* optional error cause may follow */
1.338 +} SCTP_PACKED;
1.339 +
1.340 +struct sctp_abort_msg {
1.341 + struct sctphdr sh;
1.342 + struct sctp_abort_chunk msg;
1.343 +} SCTP_PACKED;
1.344 +
1.345 +
1.346 +/* Shutdown Association (SHUTDOWN) */
1.347 +struct sctp_shutdown_chunk {
1.348 + struct sctp_chunkhdr ch;
1.349 + uint32_t cumulative_tsn_ack;
1.350 +} SCTP_PACKED;
1.351 +
1.352 +
1.353 +/* Shutdown Acknowledgment (SHUTDOWN ACK) */
1.354 +struct sctp_shutdown_ack_chunk {
1.355 + struct sctp_chunkhdr ch;
1.356 +} SCTP_PACKED;
1.357 +
1.358 +
1.359 +/* Operation Error (ERROR) */
1.360 +struct sctp_error_chunk {
1.361 + struct sctp_chunkhdr ch;
1.362 + /* optional error causes follow */
1.363 +} SCTP_PACKED;
1.364 +
1.365 +
1.366 +/* Cookie Echo (COOKIE ECHO) */
1.367 +struct sctp_cookie_echo_chunk {
1.368 + struct sctp_chunkhdr ch;
1.369 + struct sctp_state_cookie cookie;
1.370 +} SCTP_PACKED;
1.371 +
1.372 +/* Cookie Acknowledgment (COOKIE ACK) */
1.373 +struct sctp_cookie_ack_chunk {
1.374 + struct sctp_chunkhdr ch;
1.375 +} SCTP_PACKED;
1.376 +
1.377 +/* Explicit Congestion Notification Echo (ECNE) */
1.378 +struct old_sctp_ecne_chunk {
1.379 + struct sctp_chunkhdr ch;
1.380 + uint32_t tsn;
1.381 +} SCTP_PACKED;
1.382 +
1.383 +struct sctp_ecne_chunk {
1.384 + struct sctp_chunkhdr ch;
1.385 + uint32_t tsn;
1.386 + uint32_t num_pkts_since_cwr;
1.387 +} SCTP_PACKED;
1.388 +
1.389 +/* Congestion Window Reduced (CWR) */
1.390 +struct sctp_cwr_chunk {
1.391 + struct sctp_chunkhdr ch;
1.392 + uint32_t tsn;
1.393 +} SCTP_PACKED;
1.394 +
1.395 +/* Shutdown Complete (SHUTDOWN COMPLETE) */
1.396 +struct sctp_shutdown_complete_chunk {
1.397 + struct sctp_chunkhdr ch;
1.398 +} SCTP_PACKED;
1.399 +
1.400 +/* Oper error holding a stale cookie */
1.401 +struct sctp_stale_cookie_msg {
1.402 + struct sctp_paramhdr ph;/* really an error cause */
1.403 + uint32_t time_usec;
1.404 +} SCTP_PACKED;
1.405 +
1.406 +struct sctp_adaptation_layer_indication {
1.407 + struct sctp_paramhdr ph;
1.408 + uint32_t indication;
1.409 +} SCTP_PACKED;
1.410 +
1.411 +struct sctp_cookie_while_shutting_down {
1.412 + struct sctphdr sh;
1.413 + struct sctp_chunkhdr ch;
1.414 + struct sctp_paramhdr ph;/* really an error cause */
1.415 +} SCTP_PACKED;
1.416 +
1.417 +struct sctp_shutdown_complete_msg {
1.418 + struct sctphdr sh;
1.419 + struct sctp_shutdown_complete_chunk shut_cmp;
1.420 +} SCTP_PACKED;
1.421 +
1.422 +/*
1.423 + * draft-ietf-tsvwg-addip-sctp
1.424 + */
1.425 +/* Address/Stream Configuration Change (ASCONF) */
1.426 +struct sctp_asconf_chunk {
1.427 + struct sctp_chunkhdr ch;
1.428 + uint32_t serial_number;
1.429 + /* lookup address parameter (mandatory) */
1.430 + /* asconf parameters follow */
1.431 +} SCTP_PACKED;
1.432 +
1.433 +/* Address/Stream Configuration Acknowledge (ASCONF ACK) */
1.434 +struct sctp_asconf_ack_chunk {
1.435 + struct sctp_chunkhdr ch;
1.436 + uint32_t serial_number;
1.437 + /* asconf parameters follow */
1.438 +} SCTP_PACKED;
1.439 +
1.440 +/* draft-ietf-tsvwg-prsctp */
1.441 +/* Forward Cumulative TSN (FORWARD TSN) */
1.442 +struct sctp_forward_tsn_chunk {
1.443 + struct sctp_chunkhdr ch;
1.444 + uint32_t new_cumulative_tsn;
1.445 + /* stream/sequence pairs (sctp_strseq) follow */
1.446 +} SCTP_PACKED;
1.447 +
1.448 +struct sctp_strseq {
1.449 + uint16_t stream;
1.450 + uint16_t sequence;
1.451 +} SCTP_PACKED;
1.452 +
1.453 +struct sctp_forward_tsn_msg {
1.454 + struct sctphdr sh;
1.455 + struct sctp_forward_tsn_chunk msg;
1.456 +} SCTP_PACKED;
1.457 +
1.458 +/* should be a multiple of 4 - 1 aka 3/7/11 etc. */
1.459 +
1.460 +#define SCTP_NUM_DB_TO_VERIFY 31
1.461 +
1.462 +struct sctp_chunk_desc {
1.463 + uint8_t chunk_type;
1.464 + uint8_t data_bytes[SCTP_NUM_DB_TO_VERIFY];
1.465 + uint32_t tsn_ifany;
1.466 +} SCTP_PACKED;
1.467 +
1.468 +
1.469 +struct sctp_pktdrop_chunk {
1.470 + struct sctp_chunkhdr ch;
1.471 + uint32_t bottle_bw;
1.472 + uint32_t current_onq;
1.473 + uint16_t trunc_len;
1.474 + uint16_t reserved;
1.475 + uint8_t data[];
1.476 +} SCTP_PACKED;
1.477 +
1.478 +/**********STREAM RESET STUFF ******************/
1.479 +
1.480 +struct sctp_stream_reset_out_request {
1.481 + struct sctp_paramhdr ph;
1.482 + uint32_t request_seq; /* monotonically increasing seq no */
1.483 + uint32_t response_seq; /* if a response, the resp seq no */
1.484 + uint32_t send_reset_at_tsn; /* last TSN I assigned outbound */
1.485 + uint16_t list_of_streams[]; /* if not all list of streams */
1.486 +} SCTP_PACKED;
1.487 +
1.488 +struct sctp_stream_reset_in_request {
1.489 + struct sctp_paramhdr ph;
1.490 + uint32_t request_seq;
1.491 + uint16_t list_of_streams[]; /* if not all list of streams */
1.492 +} SCTP_PACKED;
1.493 +
1.494 +
1.495 +struct sctp_stream_reset_tsn_request {
1.496 + struct sctp_paramhdr ph;
1.497 + uint32_t request_seq;
1.498 +} SCTP_PACKED;
1.499 +
1.500 +struct sctp_stream_reset_response {
1.501 + struct sctp_paramhdr ph;
1.502 + uint32_t response_seq; /* if a response, the resp seq no */
1.503 + uint32_t result;
1.504 +} SCTP_PACKED;
1.505 +
1.506 +struct sctp_stream_reset_response_tsn {
1.507 + struct sctp_paramhdr ph;
1.508 + uint32_t response_seq; /* if a response, the resp seq no */
1.509 + uint32_t result;
1.510 + uint32_t senders_next_tsn;
1.511 + uint32_t receivers_next_tsn;
1.512 +} SCTP_PACKED;
1.513 +
1.514 +struct sctp_stream_reset_add_strm {
1.515 + struct sctp_paramhdr ph;
1.516 + uint32_t request_seq;
1.517 + uint16_t number_of_streams;
1.518 + uint16_t reserved;
1.519 +} SCTP_PACKED;
1.520 +
1.521 +#define SCTP_STREAM_RESET_RESULT_NOTHING_TO_DO 0x00000000 /* XXX: unused */
1.522 +#define SCTP_STREAM_RESET_RESULT_PERFORMED 0x00000001
1.523 +#define SCTP_STREAM_RESET_RESULT_DENIED 0x00000002
1.524 +#define SCTP_STREAM_RESET_RESULT_ERR__WRONG_SSN 0x00000003 /* XXX: unused */
1.525 +#define SCTP_STREAM_RESET_RESULT_ERR_IN_PROGRESS 0x00000004
1.526 +#define SCTP_STREAM_RESET_RESULT_ERR_BAD_SEQNO 0x00000005
1.527 +#define SCTP_STREAM_RESET_RESULT_IN_PROGRESS 0x00000006 /* XXX: unused */
1.528 +
1.529 +/*
1.530 + * convience structures, note that if you are making a request for specific
1.531 + * streams then the request will need to be an overlay structure.
1.532 + */
1.533 +
1.534 +struct sctp_stream_reset_tsn_req {
1.535 + struct sctp_chunkhdr ch;
1.536 + struct sctp_stream_reset_tsn_request sr_req;
1.537 +} SCTP_PACKED;
1.538 +
1.539 +struct sctp_stream_reset_resp {
1.540 + struct sctp_chunkhdr ch;
1.541 + struct sctp_stream_reset_response sr_resp;
1.542 +} SCTP_PACKED;
1.543 +
1.544 +/* respone only valid with a TSN request */
1.545 +struct sctp_stream_reset_resp_tsn {
1.546 + struct sctp_chunkhdr ch;
1.547 + struct sctp_stream_reset_response_tsn sr_resp;
1.548 +} SCTP_PACKED;
1.549 +
1.550 +/****************************************************/
1.551 +
1.552 +/*
1.553 + * Authenticated chunks support draft-ietf-tsvwg-sctp-auth
1.554 + */
1.555 +
1.556 +/* Should we make the max be 32? */
1.557 +#define SCTP_RANDOM_MAX_SIZE 256
1.558 +struct sctp_auth_random {
1.559 + struct sctp_paramhdr ph;/* type = 0x8002 */
1.560 + uint8_t random_data[];
1.561 +} SCTP_PACKED;
1.562 +
1.563 +struct sctp_auth_chunk_list {
1.564 + struct sctp_paramhdr ph;/* type = 0x8003 */
1.565 + uint8_t chunk_types[];
1.566 +} SCTP_PACKED;
1.567 +
1.568 +struct sctp_auth_hmac_algo {
1.569 + struct sctp_paramhdr ph;/* type = 0x8004 */
1.570 + uint16_t hmac_ids[];
1.571 +} SCTP_PACKED;
1.572 +
1.573 +struct sctp_auth_chunk {
1.574 + struct sctp_chunkhdr ch;
1.575 + uint16_t shared_key_id;
1.576 + uint16_t hmac_id;
1.577 + uint8_t hmac[];
1.578 +} SCTP_PACKED;
1.579 +
1.580 +struct sctp_auth_invalid_hmac {
1.581 + struct sctp_paramhdr ph;
1.582 + uint16_t hmac_id;
1.583 + uint16_t padding;
1.584 +} SCTP_PACKED;
1.585 +
1.586 +/*
1.587 + * we pre-reserve enough room for a ECNE or CWR AND a SACK with no missing
1.588 + * pieces. If ENCE is missing we could have a couple of blocks. This way we
1.589 + * optimize so we MOST likely can bundle a SACK/ECN with the smallest size
1.590 + * data chunk I will split into. We could increase throughput slightly by
1.591 + * taking out these two but the 24-sack/8-CWR i.e. 32 bytes I pre-reserve I
1.592 + * feel is worth it for now.
1.593 + */
1.594 +#ifndef SCTP_MAX_OVERHEAD
1.595 +#ifdef INET6
1.596 +#define SCTP_MAX_OVERHEAD (sizeof(struct sctp_data_chunk) + \
1.597 + sizeof(struct sctphdr) + \
1.598 + sizeof(struct sctp_ecne_chunk) + \
1.599 + sizeof(struct sctp_sack_chunk) + \
1.600 + sizeof(struct ip6_hdr))
1.601 +
1.602 +#define SCTP_MED_OVERHEAD (sizeof(struct sctp_data_chunk) + \
1.603 + sizeof(struct sctphdr) + \
1.604 + sizeof(struct ip6_hdr))
1.605 +
1.606 +
1.607 +#define SCTP_MIN_OVERHEAD (sizeof(struct ip6_hdr) + \
1.608 + sizeof(struct sctphdr))
1.609 +
1.610 +#else
1.611 +#define SCTP_MAX_OVERHEAD (sizeof(struct sctp_data_chunk) + \
1.612 + sizeof(struct sctphdr) + \
1.613 + sizeof(struct sctp_ecne_chunk) + \
1.614 + sizeof(struct sctp_sack_chunk) + \
1.615 + sizeof(struct ip))
1.616 +
1.617 +#define SCTP_MED_OVERHEAD (sizeof(struct sctp_data_chunk) + \
1.618 + sizeof(struct sctphdr) + \
1.619 + sizeof(struct ip))
1.620 +
1.621 +
1.622 +#define SCTP_MIN_OVERHEAD (sizeof(struct ip) + \
1.623 + sizeof(struct sctphdr))
1.624 +
1.625 +#endif /* INET6 */
1.626 +#endif /* !SCTP_MAX_OVERHEAD */
1.627 +
1.628 +#define SCTP_MED_V4_OVERHEAD (sizeof(struct sctp_data_chunk) + \
1.629 + sizeof(struct sctphdr) + \
1.630 + sizeof(struct ip))
1.631 +
1.632 +#define SCTP_MIN_V4_OVERHEAD (sizeof(struct ip) + \
1.633 + sizeof(struct sctphdr))
1.634 +
1.635 +#if defined(__Windows__)
1.636 +#include <packoff.h>
1.637 +#endif
1.638 +#if defined(__Userspace_os_Windows)
1.639 +#pragma pack ()
1.640 +#endif
1.641 +#undef SCTP_PACKED
1.642 +#endif /* !__sctp_header_h__ */
