Christopher Ferris | 2598113 | 2017-11-14 16:53:49 -0800 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 2 | /* SCTP kernel implementation |
| 3 | * (C) Copyright IBM Corp. 2001, 2004 |
| 4 | * Copyright (c) 1999-2000 Cisco, Inc. |
| 5 | * Copyright (c) 1999-2001 Motorola, Inc. |
| 6 | * Copyright (c) 2002 Intel Corp. |
| 7 | * |
| 8 | * This file is part of the SCTP kernel implementation |
| 9 | * |
| 10 | * This header represents the structures and constants needed to support |
| 11 | * the SCTP Extension to the Sockets API. |
| 12 | * |
| 13 | * This SCTP implementation is free software; |
| 14 | * you can redistribute it and/or modify it under the terms of |
| 15 | * the GNU General Public License as published by |
| 16 | * the Free Software Foundation; either version 2, or (at your option) |
| 17 | * any later version. |
| 18 | * |
| 19 | * This SCTP implementation is distributed in the hope that it |
| 20 | * will be useful, but WITHOUT ANY WARRANTY; without even the implied |
| 21 | * ************************ |
| 22 | * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 23 | * See the GNU General Public License for more details. |
| 24 | * |
| 25 | * You should have received a copy of the GNU General Public License |
Christopher Ferris | e084501 | 2014-07-09 14:58:51 -0700 | [diff] [blame] | 26 | * along with GNU CC; see the file COPYING. If not, see |
| 27 | * <http://www.gnu.org/licenses/>. |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 28 | * |
| 29 | * Please send any bug reports or fixes you make to the |
| 30 | * email address(es): |
Christopher Ferris | e084501 | 2014-07-09 14:58:51 -0700 | [diff] [blame] | 31 | * lksctp developers <linux-sctp@vger.kernel.org> |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 32 | * |
| 33 | * Or submit a bug report through the following website: |
| 34 | * http://www.sf.net/projects/lksctp |
| 35 | * |
| 36 | * Written or modified by: |
| 37 | * La Monte H.P. Yarroll <piggy@acm.org> |
| 38 | * R. Stewart <randall@sctp.chicago.il.us> |
| 39 | * K. Morneau <kmorneau@cisco.com> |
| 40 | * Q. Xie <qxie1@email.mot.com> |
| 41 | * Karl Knutson <karl@athena.chicago.il.us> |
| 42 | * Jon Grimm <jgrimm@us.ibm.com> |
| 43 | * Daisy Chang <daisyc@us.ibm.com> |
| 44 | * Ryan Layer <rmlayer@us.ibm.com> |
| 45 | * Ardelle Fan <ardelle.fan@intel.com> |
| 46 | * Sridhar Samudrala <sri@us.ibm.com> |
| 47 | * Inaky Perez-Gonzalez <inaky.gonzalez@intel.com> |
| 48 | * Vlad Yasevich <vladislav.yasevich@hp.com> |
| 49 | * |
| 50 | * Any bugs reported given to us we will try to fix... any fixes shared will |
| 51 | * be incorporated into the next SCTP release. |
| 52 | */ |
| 53 | |
| 54 | #ifndef _UAPI_SCTP_H |
| 55 | #define _UAPI_SCTP_H |
| 56 | |
| 57 | #include <linux/types.h> |
| 58 | #include <linux/socket.h> |
| 59 | |
| 60 | typedef __s32 sctp_assoc_t; |
| 61 | |
| 62 | /* The following symbols come from the Sockets API Extensions for |
| 63 | * SCTP <draft-ietf-tsvwg-sctpsocket-07.txt>. |
| 64 | */ |
| 65 | #define SCTP_RTOINFO 0 |
| 66 | #define SCTP_ASSOCINFO 1 |
| 67 | #define SCTP_INITMSG 2 |
| 68 | #define SCTP_NODELAY 3 /* Get/set nodelay option. */ |
| 69 | #define SCTP_AUTOCLOSE 4 |
| 70 | #define SCTP_SET_PEER_PRIMARY_ADDR 5 |
| 71 | #define SCTP_PRIMARY_ADDR 6 |
| 72 | #define SCTP_ADAPTATION_LAYER 7 |
| 73 | #define SCTP_DISABLE_FRAGMENTS 8 |
| 74 | #define SCTP_PEER_ADDR_PARAMS 9 |
| 75 | #define SCTP_DEFAULT_SEND_PARAM 10 |
| 76 | #define SCTP_EVENTS 11 |
| 77 | #define SCTP_I_WANT_MAPPED_V4_ADDR 12 /* Turn on/off mapped v4 addresses */ |
| 78 | #define SCTP_MAXSEG 13 /* Get/set maximum fragment. */ |
| 79 | #define SCTP_STATUS 14 |
| 80 | #define SCTP_GET_PEER_ADDR_INFO 15 |
| 81 | #define SCTP_DELAYED_ACK_TIME 16 |
| 82 | #define SCTP_DELAYED_ACK SCTP_DELAYED_ACK_TIME |
| 83 | #define SCTP_DELAYED_SACK SCTP_DELAYED_ACK_TIME |
| 84 | #define SCTP_CONTEXT 17 |
| 85 | #define SCTP_FRAGMENT_INTERLEAVE 18 |
| 86 | #define SCTP_PARTIAL_DELIVERY_POINT 19 /* Set/Get partial delivery point */ |
| 87 | #define SCTP_MAX_BURST 20 /* Set/Get max burst */ |
| 88 | #define SCTP_AUTH_CHUNK 21 /* Set only: add a chunk type to authenticate */ |
| 89 | #define SCTP_HMAC_IDENT 22 |
| 90 | #define SCTP_AUTH_KEY 23 |
| 91 | #define SCTP_AUTH_ACTIVE_KEY 24 |
| 92 | #define SCTP_AUTH_DELETE_KEY 25 |
| 93 | #define SCTP_PEER_AUTH_CHUNKS 26 /* Read only */ |
| 94 | #define SCTP_LOCAL_AUTH_CHUNKS 27 /* Read only */ |
| 95 | #define SCTP_GET_ASSOC_NUMBER 28 /* Read only */ |
| 96 | #define SCTP_GET_ASSOC_ID_LIST 29 /* Read only */ |
| 97 | #define SCTP_AUTO_ASCONF 30 |
| 98 | #define SCTP_PEER_ADDR_THLDS 31 |
Christopher Ferris | 7c0b639 | 2015-01-23 15:34:26 -0800 | [diff] [blame] | 99 | #define SCTP_RECVRCVINFO 32 |
| 100 | #define SCTP_RECVNXTINFO 33 |
| 101 | #define SCTP_DEFAULT_SNDINFO 34 |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 102 | |
| 103 | /* Internal Socket Options. Some of the sctp library functions are |
| 104 | * implemented using these socket options. |
| 105 | */ |
| 106 | #define SCTP_SOCKOPT_BINDX_ADD 100 /* BINDX requests for adding addrs */ |
| 107 | #define SCTP_SOCKOPT_BINDX_REM 101 /* BINDX requests for removing addrs. */ |
| 108 | #define SCTP_SOCKOPT_PEELOFF 102 /* peel off association. */ |
| 109 | /* Options 104-106 are deprecated and removed. Do not use this space */ |
| 110 | #define SCTP_SOCKOPT_CONNECTX_OLD 107 /* CONNECTX old requests. */ |
| 111 | #define SCTP_GET_PEER_ADDRS 108 /* Get all peer address. */ |
| 112 | #define SCTP_GET_LOCAL_ADDRS 109 /* Get all local address. */ |
| 113 | #define SCTP_SOCKOPT_CONNECTX 110 /* CONNECTX requests. */ |
| 114 | #define SCTP_SOCKOPT_CONNECTX3 111 /* CONNECTX requests (updated) */ |
| 115 | #define SCTP_GET_ASSOC_STATS 112 /* Read only */ |
Christopher Ferris | 6e3550f | 2016-12-12 14:51:18 -0800 | [diff] [blame] | 116 | #define SCTP_PR_SUPPORTED 113 |
| 117 | #define SCTP_DEFAULT_PRINFO 114 |
| 118 | #define SCTP_PR_ASSOC_STATUS 115 |
Christopher Ferris | 0543f74 | 2017-07-26 13:09:46 -0700 | [diff] [blame] | 119 | #define SCTP_PR_STREAM_STATUS 116 |
| 120 | #define SCTP_RECONFIG_SUPPORTED 117 |
| 121 | #define SCTP_ENABLE_STREAM_RESET 118 |
| 122 | #define SCTP_RESET_STREAMS 119 |
| 123 | #define SCTP_RESET_ASSOC 120 |
| 124 | #define SCTP_ADD_STREAMS 121 |
Christopher Ferris | 2598113 | 2017-11-14 16:53:49 -0800 | [diff] [blame] | 125 | #define SCTP_SOCKOPT_PEELOFF_FLAGS 122 |
Christopher Ferris | 6e3550f | 2016-12-12 14:51:18 -0800 | [diff] [blame] | 126 | |
| 127 | /* PR-SCTP policies */ |
| 128 | #define SCTP_PR_SCTP_NONE 0x0000 |
| 129 | #define SCTP_PR_SCTP_TTL 0x0010 |
| 130 | #define SCTP_PR_SCTP_RTX 0x0020 |
| 131 | #define SCTP_PR_SCTP_PRIO 0x0030 |
| 132 | #define SCTP_PR_SCTP_MAX SCTP_PR_SCTP_PRIO |
| 133 | #define SCTP_PR_SCTP_MASK 0x0030 |
| 134 | |
| 135 | #define __SCTP_PR_INDEX(x) ((x >> 4) - 1) |
| 136 | #define SCTP_PR_INDEX(x) __SCTP_PR_INDEX(SCTP_PR_SCTP_ ## x) |
| 137 | |
| 138 | #define SCTP_PR_POLICY(x) ((x) & SCTP_PR_SCTP_MASK) |
| 139 | #define SCTP_PR_SET_POLICY(flags, x) \ |
| 140 | do { \ |
| 141 | flags &= ~SCTP_PR_SCTP_MASK; \ |
| 142 | flags |= x; \ |
| 143 | } while (0) |
| 144 | |
| 145 | #define SCTP_PR_TTL_ENABLED(x) (SCTP_PR_POLICY(x) == SCTP_PR_SCTP_TTL) |
| 146 | #define SCTP_PR_RTX_ENABLED(x) (SCTP_PR_POLICY(x) == SCTP_PR_SCTP_RTX) |
| 147 | #define SCTP_PR_PRIO_ENABLED(x) (SCTP_PR_POLICY(x) == SCTP_PR_SCTP_PRIO) |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 148 | |
Christopher Ferris | 0543f74 | 2017-07-26 13:09:46 -0700 | [diff] [blame] | 149 | /* For enable stream reset */ |
| 150 | #define SCTP_ENABLE_RESET_STREAM_REQ 0x01 |
| 151 | #define SCTP_ENABLE_RESET_ASSOC_REQ 0x02 |
| 152 | #define SCTP_ENABLE_CHANGE_ASSOC_REQ 0x04 |
| 153 | #define SCTP_ENABLE_STRRESET_MASK 0x07 |
| 154 | |
| 155 | #define SCTP_STREAM_RESET_INCOMING 0x01 |
| 156 | #define SCTP_STREAM_RESET_OUTGOING 0x02 |
| 157 | |
Christopher Ferris | 7c0b639 | 2015-01-23 15:34:26 -0800 | [diff] [blame] | 158 | /* These are bit fields for msghdr->msg_flags. See section 5.1. */ |
| 159 | /* On user space Linux, these live in <bits/socket.h> as an enum. */ |
| 160 | enum sctp_msg_flags { |
| 161 | MSG_NOTIFICATION = 0x8000, |
| 162 | #define MSG_NOTIFICATION MSG_NOTIFICATION |
| 163 | }; |
| 164 | |
| 165 | /* 5.3.1 SCTP Initiation Structure (SCTP_INIT) |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 166 | * |
| 167 | * This cmsghdr structure provides information for initializing new |
| 168 | * SCTP associations with sendmsg(). The SCTP_INITMSG socket option |
| 169 | * uses this same data structure. This structure is not used for |
| 170 | * recvmsg(). |
| 171 | * |
| 172 | * cmsg_level cmsg_type cmsg_data[] |
| 173 | * ------------ ------------ ---------------------- |
| 174 | * IPPROTO_SCTP SCTP_INIT struct sctp_initmsg |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 175 | */ |
| 176 | struct sctp_initmsg { |
| 177 | __u16 sinit_num_ostreams; |
| 178 | __u16 sinit_max_instreams; |
| 179 | __u16 sinit_max_attempts; |
| 180 | __u16 sinit_max_init_timeo; |
| 181 | }; |
| 182 | |
Christopher Ferris | 7c0b639 | 2015-01-23 15:34:26 -0800 | [diff] [blame] | 183 | /* 5.3.2 SCTP Header Information Structure (SCTP_SNDRCV) |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 184 | * |
| 185 | * This cmsghdr structure specifies SCTP options for sendmsg() and |
| 186 | * describes SCTP header information about a received message through |
| 187 | * recvmsg(). |
| 188 | * |
| 189 | * cmsg_level cmsg_type cmsg_data[] |
| 190 | * ------------ ------------ ---------------------- |
| 191 | * IPPROTO_SCTP SCTP_SNDRCV struct sctp_sndrcvinfo |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 192 | */ |
| 193 | struct sctp_sndrcvinfo { |
| 194 | __u16 sinfo_stream; |
| 195 | __u16 sinfo_ssn; |
| 196 | __u16 sinfo_flags; |
| 197 | __u32 sinfo_ppid; |
| 198 | __u32 sinfo_context; |
| 199 | __u32 sinfo_timetolive; |
| 200 | __u32 sinfo_tsn; |
| 201 | __u32 sinfo_cumtsn; |
| 202 | sctp_assoc_t sinfo_assoc_id; |
| 203 | }; |
| 204 | |
Christopher Ferris | 7c0b639 | 2015-01-23 15:34:26 -0800 | [diff] [blame] | 205 | /* 5.3.4 SCTP Send Information Structure (SCTP_SNDINFO) |
| 206 | * |
| 207 | * This cmsghdr structure specifies SCTP options for sendmsg(). |
| 208 | * |
| 209 | * cmsg_level cmsg_type cmsg_data[] |
| 210 | * ------------ ------------ ------------------- |
| 211 | * IPPROTO_SCTP SCTP_SNDINFO struct sctp_sndinfo |
| 212 | */ |
| 213 | struct sctp_sndinfo { |
| 214 | __u16 snd_sid; |
| 215 | __u16 snd_flags; |
| 216 | __u32 snd_ppid; |
| 217 | __u32 snd_context; |
| 218 | sctp_assoc_t snd_assoc_id; |
| 219 | }; |
| 220 | |
| 221 | /* 5.3.5 SCTP Receive Information Structure (SCTP_RCVINFO) |
| 222 | * |
| 223 | * This cmsghdr structure describes SCTP receive information |
| 224 | * about a received message through recvmsg(). |
| 225 | * |
| 226 | * cmsg_level cmsg_type cmsg_data[] |
| 227 | * ------------ ------------ ------------------- |
| 228 | * IPPROTO_SCTP SCTP_RCVINFO struct sctp_rcvinfo |
| 229 | */ |
| 230 | struct sctp_rcvinfo { |
| 231 | __u16 rcv_sid; |
| 232 | __u16 rcv_ssn; |
| 233 | __u16 rcv_flags; |
| 234 | __u32 rcv_ppid; |
| 235 | __u32 rcv_tsn; |
| 236 | __u32 rcv_cumtsn; |
| 237 | __u32 rcv_context; |
| 238 | sctp_assoc_t rcv_assoc_id; |
| 239 | }; |
| 240 | |
| 241 | /* 5.3.6 SCTP Next Receive Information Structure (SCTP_NXTINFO) |
| 242 | * |
| 243 | * This cmsghdr structure describes SCTP receive information |
| 244 | * of the next message that will be delivered through recvmsg() |
| 245 | * if this information is already available when delivering |
| 246 | * the current message. |
| 247 | * |
| 248 | * cmsg_level cmsg_type cmsg_data[] |
| 249 | * ------------ ------------ ------------------- |
| 250 | * IPPROTO_SCTP SCTP_NXTINFO struct sctp_nxtinfo |
| 251 | */ |
| 252 | struct sctp_nxtinfo { |
| 253 | __u16 nxt_sid; |
| 254 | __u16 nxt_flags; |
| 255 | __u32 nxt_ppid; |
| 256 | __u32 nxt_length; |
| 257 | sctp_assoc_t nxt_assoc_id; |
| 258 | }; |
| 259 | |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 260 | /* |
| 261 | * sinfo_flags: 16 bits (unsigned integer) |
| 262 | * |
| 263 | * This field may contain any of the following flags and is composed of |
| 264 | * a bitwise OR of these values. |
| 265 | */ |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 266 | enum sctp_sinfo_flags { |
Christopher Ferris | 7c0b639 | 2015-01-23 15:34:26 -0800 | [diff] [blame] | 267 | SCTP_UNORDERED = (1 << 0), /* Send/receive message unordered. */ |
| 268 | SCTP_ADDR_OVER = (1 << 1), /* Override the primary destination. */ |
| 269 | SCTP_ABORT = (1 << 2), /* Send an ABORT message to the peer. */ |
| 270 | SCTP_SACK_IMMEDIATELY = (1 << 3), /* SACK should be sent without delay. */ |
| 271 | SCTP_NOTIFICATION = MSG_NOTIFICATION, /* Next message is not user msg but notification. */ |
| 272 | SCTP_EOF = MSG_FIN, /* Initiate graceful shutdown process. */ |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 273 | }; |
| 274 | |
| 275 | typedef union { |
| 276 | __u8 raw; |
| 277 | struct sctp_initmsg init; |
| 278 | struct sctp_sndrcvinfo sndrcv; |
| 279 | } sctp_cmsg_data_t; |
| 280 | |
| 281 | /* These are cmsg_types. */ |
| 282 | typedef enum sctp_cmsg_type { |
Christopher Ferris | 7c0b639 | 2015-01-23 15:34:26 -0800 | [diff] [blame] | 283 | SCTP_INIT, /* 5.2.1 SCTP Initiation Structure */ |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 284 | #define SCTP_INIT SCTP_INIT |
Christopher Ferris | 7c0b639 | 2015-01-23 15:34:26 -0800 | [diff] [blame] | 285 | SCTP_SNDRCV, /* 5.2.2 SCTP Header Information Structure */ |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 286 | #define SCTP_SNDRCV SCTP_SNDRCV |
Christopher Ferris | 7c0b639 | 2015-01-23 15:34:26 -0800 | [diff] [blame] | 287 | SCTP_SNDINFO, /* 5.3.4 SCTP Send Information Structure */ |
| 288 | #define SCTP_SNDINFO SCTP_SNDINFO |
| 289 | SCTP_RCVINFO, /* 5.3.5 SCTP Receive Information Structure */ |
| 290 | #define SCTP_RCVINFO SCTP_RCVINFO |
| 291 | SCTP_NXTINFO, /* 5.3.6 SCTP Next Receive Information Structure */ |
| 292 | #define SCTP_NXTINFO SCTP_NXTINFO |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 293 | } sctp_cmsg_t; |
| 294 | |
| 295 | /* |
| 296 | * 5.3.1.1 SCTP_ASSOC_CHANGE |
| 297 | * |
| 298 | * Communication notifications inform the ULP that an SCTP association |
| 299 | * has either begun or ended. The identifier for a new association is |
| 300 | * provided by this notificaion. The notification information has the |
| 301 | * following format: |
| 302 | * |
| 303 | */ |
| 304 | struct sctp_assoc_change { |
| 305 | __u16 sac_type; |
| 306 | __u16 sac_flags; |
| 307 | __u32 sac_length; |
| 308 | __u16 sac_state; |
| 309 | __u16 sac_error; |
| 310 | __u16 sac_outbound_streams; |
| 311 | __u16 sac_inbound_streams; |
| 312 | sctp_assoc_t sac_assoc_id; |
| 313 | __u8 sac_info[0]; |
| 314 | }; |
| 315 | |
| 316 | /* |
| 317 | * sac_state: 32 bits (signed integer) |
| 318 | * |
| 319 | * This field holds one of a number of values that communicate the |
| 320 | * event that happened to the association. They include: |
| 321 | * |
| 322 | * Note: The following state names deviate from the API draft as |
| 323 | * the names clash too easily with other kernel symbols. |
| 324 | */ |
| 325 | enum sctp_sac_state { |
| 326 | SCTP_COMM_UP, |
| 327 | SCTP_COMM_LOST, |
| 328 | SCTP_RESTART, |
| 329 | SCTP_SHUTDOWN_COMP, |
| 330 | SCTP_CANT_STR_ASSOC, |
| 331 | }; |
| 332 | |
| 333 | /* |
| 334 | * 5.3.1.2 SCTP_PEER_ADDR_CHANGE |
| 335 | * |
| 336 | * When a destination address on a multi-homed peer encounters a change |
| 337 | * an interface details event is sent. The information has the |
| 338 | * following structure: |
| 339 | */ |
| 340 | struct sctp_paddr_change { |
| 341 | __u16 spc_type; |
| 342 | __u16 spc_flags; |
| 343 | __u32 spc_length; |
| 344 | struct sockaddr_storage spc_aaddr; |
| 345 | int spc_state; |
| 346 | int spc_error; |
| 347 | sctp_assoc_t spc_assoc_id; |
| 348 | } __attribute__((packed, aligned(4))); |
| 349 | |
| 350 | /* |
| 351 | * spc_state: 32 bits (signed integer) |
| 352 | * |
| 353 | * This field holds one of a number of values that communicate the |
| 354 | * event that happened to the address. They include: |
| 355 | */ |
| 356 | enum sctp_spc_state { |
| 357 | SCTP_ADDR_AVAILABLE, |
| 358 | SCTP_ADDR_UNREACHABLE, |
| 359 | SCTP_ADDR_REMOVED, |
| 360 | SCTP_ADDR_ADDED, |
| 361 | SCTP_ADDR_MADE_PRIM, |
| 362 | SCTP_ADDR_CONFIRMED, |
| 363 | }; |
| 364 | |
| 365 | |
| 366 | /* |
| 367 | * 5.3.1.3 SCTP_REMOTE_ERROR |
| 368 | * |
| 369 | * A remote peer may send an Operational Error message to its peer. |
| 370 | * This message indicates a variety of error conditions on an |
| 371 | * association. The entire error TLV as it appears on the wire is |
| 372 | * included in a SCTP_REMOTE_ERROR event. Please refer to the SCTP |
| 373 | * specification [SCTP] and any extensions for a list of possible |
| 374 | * error formats. SCTP error TLVs have the format: |
| 375 | */ |
| 376 | struct sctp_remote_error { |
| 377 | __u16 sre_type; |
| 378 | __u16 sre_flags; |
| 379 | __u32 sre_length; |
Christopher Ferris | 2598113 | 2017-11-14 16:53:49 -0800 | [diff] [blame] | 380 | __be16 sre_error; |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 381 | sctp_assoc_t sre_assoc_id; |
| 382 | __u8 sre_data[0]; |
| 383 | }; |
| 384 | |
| 385 | |
| 386 | /* |
| 387 | * 5.3.1.4 SCTP_SEND_FAILED |
| 388 | * |
| 389 | * If SCTP cannot deliver a message it may return the message as a |
| 390 | * notification. |
| 391 | */ |
| 392 | struct sctp_send_failed { |
| 393 | __u16 ssf_type; |
| 394 | __u16 ssf_flags; |
| 395 | __u32 ssf_length; |
| 396 | __u32 ssf_error; |
| 397 | struct sctp_sndrcvinfo ssf_info; |
| 398 | sctp_assoc_t ssf_assoc_id; |
| 399 | __u8 ssf_data[0]; |
| 400 | }; |
| 401 | |
| 402 | /* |
| 403 | * ssf_flags: 16 bits (unsigned integer) |
| 404 | * |
| 405 | * The flag value will take one of the following values |
| 406 | * |
| 407 | * SCTP_DATA_UNSENT - Indicates that the data was never put on |
| 408 | * the wire. |
| 409 | * |
| 410 | * SCTP_DATA_SENT - Indicates that the data was put on the wire. |
| 411 | * Note that this does not necessarily mean that the |
| 412 | * data was (or was not) successfully delivered. |
| 413 | */ |
| 414 | enum sctp_ssf_flags { |
| 415 | SCTP_DATA_UNSENT, |
| 416 | SCTP_DATA_SENT, |
| 417 | }; |
| 418 | |
| 419 | /* |
| 420 | * 5.3.1.5 SCTP_SHUTDOWN_EVENT |
| 421 | * |
| 422 | * When a peer sends a SHUTDOWN, SCTP delivers this notification to |
| 423 | * inform the application that it should cease sending data. |
| 424 | */ |
| 425 | struct sctp_shutdown_event { |
| 426 | __u16 sse_type; |
| 427 | __u16 sse_flags; |
| 428 | __u32 sse_length; |
| 429 | sctp_assoc_t sse_assoc_id; |
| 430 | }; |
| 431 | |
| 432 | /* |
| 433 | * 5.3.1.6 SCTP_ADAPTATION_INDICATION |
| 434 | * |
| 435 | * When a peer sends a Adaptation Layer Indication parameter , SCTP |
| 436 | * delivers this notification to inform the application |
| 437 | * that of the peers requested adaptation layer. |
| 438 | */ |
| 439 | struct sctp_adaptation_event { |
| 440 | __u16 sai_type; |
| 441 | __u16 sai_flags; |
| 442 | __u32 sai_length; |
| 443 | __u32 sai_adaptation_ind; |
| 444 | sctp_assoc_t sai_assoc_id; |
| 445 | }; |
| 446 | |
| 447 | /* |
| 448 | * 5.3.1.7 SCTP_PARTIAL_DELIVERY_EVENT |
| 449 | * |
| 450 | * When a receiver is engaged in a partial delivery of a |
| 451 | * message this notification will be used to indicate |
| 452 | * various events. |
| 453 | */ |
| 454 | struct sctp_pdapi_event { |
| 455 | __u16 pdapi_type; |
| 456 | __u16 pdapi_flags; |
| 457 | __u32 pdapi_length; |
| 458 | __u32 pdapi_indication; |
| 459 | sctp_assoc_t pdapi_assoc_id; |
| 460 | }; |
| 461 | |
| 462 | enum { SCTP_PARTIAL_DELIVERY_ABORTED=0, }; |
| 463 | |
| 464 | /* |
| 465 | * 5.3.1.8. SCTP_AUTHENTICATION_EVENT |
| 466 | * |
| 467 | * When a receiver is using authentication this message will provide |
| 468 | * notifications regarding new keys being made active as well as errors. |
| 469 | */ |
| 470 | struct sctp_authkey_event { |
| 471 | __u16 auth_type; |
| 472 | __u16 auth_flags; |
| 473 | __u32 auth_length; |
| 474 | __u16 auth_keynumber; |
| 475 | __u16 auth_altkeynumber; |
| 476 | __u32 auth_indication; |
| 477 | sctp_assoc_t auth_assoc_id; |
| 478 | }; |
| 479 | |
| 480 | enum { SCTP_AUTH_NEWKEY = 0, }; |
| 481 | |
| 482 | /* |
| 483 | * 6.1.9. SCTP_SENDER_DRY_EVENT |
| 484 | * |
| 485 | * When the SCTP stack has no more user data to send or retransmit, this |
| 486 | * notification is given to the user. Also, at the time when a user app |
| 487 | * subscribes to this event, if there is no data to be sent or |
| 488 | * retransmit, the stack will immediately send up this notification. |
| 489 | */ |
| 490 | struct sctp_sender_dry_event { |
| 491 | __u16 sender_dry_type; |
| 492 | __u16 sender_dry_flags; |
| 493 | __u32 sender_dry_length; |
| 494 | sctp_assoc_t sender_dry_assoc_id; |
| 495 | }; |
| 496 | |
Christopher Ferris | 0543f74 | 2017-07-26 13:09:46 -0700 | [diff] [blame] | 497 | #define SCTP_STREAM_RESET_INCOMING_SSN 0x0001 |
| 498 | #define SCTP_STREAM_RESET_OUTGOING_SSN 0x0002 |
| 499 | #define SCTP_STREAM_RESET_DENIED 0x0004 |
| 500 | #define SCTP_STREAM_RESET_FAILED 0x0008 |
| 501 | struct sctp_stream_reset_event { |
| 502 | __u16 strreset_type; |
| 503 | __u16 strreset_flags; |
| 504 | __u32 strreset_length; |
| 505 | sctp_assoc_t strreset_assoc_id; |
| 506 | __u16 strreset_stream_list[]; |
| 507 | }; |
| 508 | |
| 509 | #define SCTP_ASSOC_RESET_DENIED 0x0004 |
| 510 | #define SCTP_ASSOC_RESET_FAILED 0x0008 |
| 511 | struct sctp_assoc_reset_event { |
| 512 | __u16 assocreset_type; |
| 513 | __u16 assocreset_flags; |
| 514 | __u32 assocreset_length; |
| 515 | sctp_assoc_t assocreset_assoc_id; |
| 516 | __u32 assocreset_local_tsn; |
| 517 | __u32 assocreset_remote_tsn; |
| 518 | }; |
| 519 | |
| 520 | #define SCTP_ASSOC_CHANGE_DENIED 0x0004 |
| 521 | #define SCTP_ASSOC_CHANGE_FAILED 0x0008 |
| 522 | struct sctp_stream_change_event { |
| 523 | __u16 strchange_type; |
| 524 | __u16 strchange_flags; |
| 525 | __u32 strchange_length; |
| 526 | sctp_assoc_t strchange_assoc_id; |
| 527 | __u16 strchange_instrms; |
| 528 | __u16 strchange_outstrms; |
| 529 | }; |
| 530 | |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 531 | /* |
| 532 | * Described in Section 7.3 |
| 533 | * Ancillary Data and Notification Interest Options |
| 534 | */ |
| 535 | struct sctp_event_subscribe { |
| 536 | __u8 sctp_data_io_event; |
| 537 | __u8 sctp_association_event; |
| 538 | __u8 sctp_address_event; |
| 539 | __u8 sctp_send_failure_event; |
| 540 | __u8 sctp_peer_error_event; |
| 541 | __u8 sctp_shutdown_event; |
| 542 | __u8 sctp_partial_delivery_event; |
| 543 | __u8 sctp_adaptation_layer_event; |
| 544 | __u8 sctp_authentication_event; |
| 545 | __u8 sctp_sender_dry_event; |
Christopher Ferris | 0543f74 | 2017-07-26 13:09:46 -0700 | [diff] [blame] | 546 | __u8 sctp_stream_reset_event; |
| 547 | __u8 sctp_assoc_reset_event; |
| 548 | __u8 sctp_stream_change_event; |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 549 | }; |
| 550 | |
| 551 | /* |
| 552 | * 5.3.1 SCTP Notification Structure |
| 553 | * |
| 554 | * The notification structure is defined as the union of all |
| 555 | * notification types. |
| 556 | * |
| 557 | */ |
| 558 | union sctp_notification { |
| 559 | struct { |
| 560 | __u16 sn_type; /* Notification type. */ |
| 561 | __u16 sn_flags; |
| 562 | __u32 sn_length; |
| 563 | } sn_header; |
| 564 | struct sctp_assoc_change sn_assoc_change; |
| 565 | struct sctp_paddr_change sn_paddr_change; |
| 566 | struct sctp_remote_error sn_remote_error; |
| 567 | struct sctp_send_failed sn_send_failed; |
| 568 | struct sctp_shutdown_event sn_shutdown_event; |
| 569 | struct sctp_adaptation_event sn_adaptation_event; |
| 570 | struct sctp_pdapi_event sn_pdapi_event; |
| 571 | struct sctp_authkey_event sn_authkey_event; |
| 572 | struct sctp_sender_dry_event sn_sender_dry_event; |
Christopher Ferris | 0543f74 | 2017-07-26 13:09:46 -0700 | [diff] [blame] | 573 | struct sctp_stream_reset_event sn_strreset_event; |
| 574 | struct sctp_assoc_reset_event sn_assocreset_event; |
| 575 | struct sctp_stream_change_event sn_strchange_event; |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 576 | }; |
| 577 | |
| 578 | /* Section 5.3.1 |
| 579 | * All standard values for sn_type flags are greater than 2^15. |
| 580 | * Values from 2^15 and down are reserved. |
| 581 | */ |
| 582 | |
| 583 | enum sctp_sn_type { |
| 584 | SCTP_SN_TYPE_BASE = (1<<15), |
| 585 | SCTP_ASSOC_CHANGE, |
| 586 | #define SCTP_ASSOC_CHANGE SCTP_ASSOC_CHANGE |
| 587 | SCTP_PEER_ADDR_CHANGE, |
| 588 | #define SCTP_PEER_ADDR_CHANGE SCTP_PEER_ADDR_CHANGE |
| 589 | SCTP_SEND_FAILED, |
| 590 | #define SCTP_SEND_FAILED SCTP_SEND_FAILED |
| 591 | SCTP_REMOTE_ERROR, |
| 592 | #define SCTP_REMOTE_ERROR SCTP_REMOTE_ERROR |
| 593 | SCTP_SHUTDOWN_EVENT, |
| 594 | #define SCTP_SHUTDOWN_EVENT SCTP_SHUTDOWN_EVENT |
| 595 | SCTP_PARTIAL_DELIVERY_EVENT, |
| 596 | #define SCTP_PARTIAL_DELIVERY_EVENT SCTP_PARTIAL_DELIVERY_EVENT |
| 597 | SCTP_ADAPTATION_INDICATION, |
| 598 | #define SCTP_ADAPTATION_INDICATION SCTP_ADAPTATION_INDICATION |
| 599 | SCTP_AUTHENTICATION_EVENT, |
| 600 | #define SCTP_AUTHENTICATION_INDICATION SCTP_AUTHENTICATION_EVENT |
| 601 | SCTP_SENDER_DRY_EVENT, |
| 602 | #define SCTP_SENDER_DRY_EVENT SCTP_SENDER_DRY_EVENT |
Christopher Ferris | 0543f74 | 2017-07-26 13:09:46 -0700 | [diff] [blame] | 603 | SCTP_STREAM_RESET_EVENT, |
| 604 | #define SCTP_STREAM_RESET_EVENT SCTP_STREAM_RESET_EVENT |
| 605 | SCTP_ASSOC_RESET_EVENT, |
| 606 | #define SCTP_ASSOC_RESET_EVENT SCTP_ASSOC_RESET_EVENT |
| 607 | SCTP_STREAM_CHANGE_EVENT, |
| 608 | #define SCTP_STREAM_CHANGE_EVENT SCTP_STREAM_CHANGE_EVENT |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 609 | }; |
| 610 | |
| 611 | /* Notification error codes used to fill up the error fields in some |
| 612 | * notifications. |
| 613 | * SCTP_PEER_ADDRESS_CHAGE : spc_error |
| 614 | * SCTP_ASSOC_CHANGE : sac_error |
| 615 | * These names should be potentially included in the draft 04 of the SCTP |
| 616 | * sockets API specification. |
| 617 | */ |
| 618 | typedef enum sctp_sn_error { |
| 619 | SCTP_FAILED_THRESHOLD, |
| 620 | SCTP_RECEIVED_SACK, |
| 621 | SCTP_HEARTBEAT_SUCCESS, |
| 622 | SCTP_RESPONSE_TO_USER_REQ, |
| 623 | SCTP_INTERNAL_ERROR, |
| 624 | SCTP_SHUTDOWN_GUARD_EXPIRES, |
| 625 | SCTP_PEER_FAULTY, |
| 626 | } sctp_sn_error_t; |
| 627 | |
| 628 | /* |
| 629 | * 7.1.1 Retransmission Timeout Parameters (SCTP_RTOINFO) |
| 630 | * |
| 631 | * The protocol parameters used to initialize and bound retransmission |
| 632 | * timeout (RTO) are tunable. See [SCTP] for more information on how |
| 633 | * these parameters are used in RTO calculation. |
| 634 | */ |
| 635 | struct sctp_rtoinfo { |
| 636 | sctp_assoc_t srto_assoc_id; |
| 637 | __u32 srto_initial; |
| 638 | __u32 srto_max; |
| 639 | __u32 srto_min; |
| 640 | }; |
| 641 | |
| 642 | /* |
| 643 | * 7.1.2 Association Parameters (SCTP_ASSOCINFO) |
| 644 | * |
| 645 | * This option is used to both examine and set various association and |
| 646 | * endpoint parameters. |
| 647 | */ |
| 648 | struct sctp_assocparams { |
| 649 | sctp_assoc_t sasoc_assoc_id; |
| 650 | __u16 sasoc_asocmaxrxt; |
| 651 | __u16 sasoc_number_peer_destinations; |
| 652 | __u32 sasoc_peer_rwnd; |
| 653 | __u32 sasoc_local_rwnd; |
| 654 | __u32 sasoc_cookie_life; |
| 655 | }; |
| 656 | |
| 657 | /* |
| 658 | * 7.1.9 Set Peer Primary Address (SCTP_SET_PEER_PRIMARY_ADDR) |
| 659 | * |
| 660 | * Requests that the peer mark the enclosed address as the association |
| 661 | * primary. The enclosed address must be one of the association's |
| 662 | * locally bound addresses. The following structure is used to make a |
| 663 | * set primary request: |
| 664 | */ |
| 665 | struct sctp_setpeerprim { |
| 666 | sctp_assoc_t sspp_assoc_id; |
| 667 | struct sockaddr_storage sspp_addr; |
| 668 | } __attribute__((packed, aligned(4))); |
| 669 | |
| 670 | /* |
| 671 | * 7.1.10 Set Primary Address (SCTP_PRIMARY_ADDR) |
| 672 | * |
| 673 | * Requests that the local SCTP stack use the enclosed peer address as |
| 674 | * the association primary. The enclosed address must be one of the |
| 675 | * association peer's addresses. The following structure is used to |
| 676 | * make a set peer primary request: |
| 677 | */ |
| 678 | struct sctp_prim { |
| 679 | sctp_assoc_t ssp_assoc_id; |
| 680 | struct sockaddr_storage ssp_addr; |
| 681 | } __attribute__((packed, aligned(4))); |
| 682 | |
| 683 | /* For backward compatibility use, define the old name too */ |
| 684 | #define sctp_setprim sctp_prim |
| 685 | |
| 686 | /* |
| 687 | * 7.1.11 Set Adaptation Layer Indicator (SCTP_ADAPTATION_LAYER) |
| 688 | * |
| 689 | * Requests that the local endpoint set the specified Adaptation Layer |
| 690 | * Indication parameter for all future INIT and INIT-ACK exchanges. |
| 691 | */ |
| 692 | struct sctp_setadaptation { |
| 693 | __u32 ssb_adaptation_ind; |
| 694 | }; |
| 695 | |
| 696 | /* |
| 697 | * 7.1.13 Peer Address Parameters (SCTP_PEER_ADDR_PARAMS) |
| 698 | * |
| 699 | * Applications can enable or disable heartbeats for any peer address |
| 700 | * of an association, modify an address's heartbeat interval, force a |
| 701 | * heartbeat to be sent immediately, and adjust the address's maximum |
| 702 | * number of retransmissions sent before an address is considered |
| 703 | * unreachable. The following structure is used to access and modify an |
| 704 | * address's parameters: |
| 705 | */ |
| 706 | enum sctp_spp_flags { |
| 707 | SPP_HB_ENABLE = 1<<0, /*Enable heartbeats*/ |
| 708 | SPP_HB_DISABLE = 1<<1, /*Disable heartbeats*/ |
| 709 | SPP_HB = SPP_HB_ENABLE | SPP_HB_DISABLE, |
| 710 | SPP_HB_DEMAND = 1<<2, /*Send heartbeat immediately*/ |
| 711 | SPP_PMTUD_ENABLE = 1<<3, /*Enable PMTU discovery*/ |
| 712 | SPP_PMTUD_DISABLE = 1<<4, /*Disable PMTU discovery*/ |
| 713 | SPP_PMTUD = SPP_PMTUD_ENABLE | SPP_PMTUD_DISABLE, |
| 714 | SPP_SACKDELAY_ENABLE = 1<<5, /*Enable SACK*/ |
| 715 | SPP_SACKDELAY_DISABLE = 1<<6, /*Disable SACK*/ |
| 716 | SPP_SACKDELAY = SPP_SACKDELAY_ENABLE | SPP_SACKDELAY_DISABLE, |
| 717 | SPP_HB_TIME_IS_ZERO = 1<<7, /* Set HB delay to 0 */ |
| 718 | }; |
| 719 | |
| 720 | struct sctp_paddrparams { |
| 721 | sctp_assoc_t spp_assoc_id; |
| 722 | struct sockaddr_storage spp_address; |
| 723 | __u32 spp_hbinterval; |
| 724 | __u16 spp_pathmaxrxt; |
| 725 | __u32 spp_pathmtu; |
| 726 | __u32 spp_sackdelay; |
| 727 | __u32 spp_flags; |
| 728 | } __attribute__((packed, aligned(4))); |
| 729 | |
| 730 | /* |
| 731 | * 7.1.18. Add a chunk that must be authenticated (SCTP_AUTH_CHUNK) |
| 732 | * |
| 733 | * This set option adds a chunk type that the user is requesting to be |
| 734 | * received only in an authenticated way. Changes to the list of chunks |
| 735 | * will only effect future associations on the socket. |
| 736 | */ |
| 737 | struct sctp_authchunk { |
| 738 | __u8 sauth_chunk; |
| 739 | }; |
| 740 | |
| 741 | /* |
| 742 | * 7.1.19. Get or set the list of supported HMAC Identifiers (SCTP_HMAC_IDENT) |
| 743 | * |
| 744 | * This option gets or sets the list of HMAC algorithms that the local |
| 745 | * endpoint requires the peer to use. |
| 746 | */ |
| 747 | #ifndef __KERNEL__ |
| 748 | /* This here is only used by user space as is. It might not be a good idea |
| 749 | * to export/reveal the whole structure with reserved fields etc. |
| 750 | */ |
| 751 | enum { |
| 752 | SCTP_AUTH_HMAC_ID_SHA1 = 1, |
| 753 | SCTP_AUTH_HMAC_ID_SHA256 = 3, |
| 754 | }; |
| 755 | #endif |
| 756 | |
| 757 | struct sctp_hmacalgo { |
| 758 | __u32 shmac_num_idents; |
| 759 | __u16 shmac_idents[]; |
| 760 | }; |
| 761 | |
| 762 | /* Sadly, user and kernel space have different names for |
| 763 | * this structure member, so this is to not break anything. |
| 764 | */ |
| 765 | #define shmac_number_of_idents shmac_num_idents |
| 766 | |
| 767 | /* |
| 768 | * 7.1.20. Set a shared key (SCTP_AUTH_KEY) |
| 769 | * |
| 770 | * This option will set a shared secret key which is used to build an |
| 771 | * association shared key. |
| 772 | */ |
| 773 | struct sctp_authkey { |
| 774 | sctp_assoc_t sca_assoc_id; |
| 775 | __u16 sca_keynumber; |
| 776 | __u16 sca_keylength; |
| 777 | __u8 sca_key[]; |
| 778 | }; |
| 779 | |
| 780 | /* |
| 781 | * 7.1.21. Get or set the active shared key (SCTP_AUTH_ACTIVE_KEY) |
| 782 | * |
| 783 | * This option will get or set the active shared key to be used to build |
| 784 | * the association shared key. |
| 785 | */ |
| 786 | |
| 787 | struct sctp_authkeyid { |
| 788 | sctp_assoc_t scact_assoc_id; |
| 789 | __u16 scact_keynumber; |
| 790 | }; |
| 791 | |
| 792 | |
| 793 | /* |
| 794 | * 7.1.23. Get or set delayed ack timer (SCTP_DELAYED_SACK) |
| 795 | * |
| 796 | * This option will effect the way delayed acks are performed. This |
| 797 | * option allows you to get or set the delayed ack time, in |
| 798 | * milliseconds. It also allows changing the delayed ack frequency. |
| 799 | * Changing the frequency to 1 disables the delayed sack algorithm. If |
| 800 | * the assoc_id is 0, then this sets or gets the endpoints default |
| 801 | * values. If the assoc_id field is non-zero, then the set or get |
| 802 | * effects the specified association for the one to many model (the |
| 803 | * assoc_id field is ignored by the one to one model). Note that if |
| 804 | * sack_delay or sack_freq are 0 when setting this option, then the |
| 805 | * current values will remain unchanged. |
| 806 | */ |
| 807 | struct sctp_sack_info { |
| 808 | sctp_assoc_t sack_assoc_id; |
| 809 | uint32_t sack_delay; |
| 810 | uint32_t sack_freq; |
| 811 | }; |
| 812 | |
| 813 | struct sctp_assoc_value { |
| 814 | sctp_assoc_t assoc_id; |
| 815 | uint32_t assoc_value; |
| 816 | }; |
| 817 | |
| 818 | /* |
| 819 | * 7.2.2 Peer Address Information |
| 820 | * |
| 821 | * Applications can retrieve information about a specific peer address |
| 822 | * of an association, including its reachability state, congestion |
| 823 | * window, and retransmission timer values. This information is |
| 824 | * read-only. The following structure is used to access this |
| 825 | * information: |
| 826 | */ |
| 827 | struct sctp_paddrinfo { |
| 828 | sctp_assoc_t spinfo_assoc_id; |
| 829 | struct sockaddr_storage spinfo_address; |
| 830 | __s32 spinfo_state; |
| 831 | __u32 spinfo_cwnd; |
| 832 | __u32 spinfo_srtt; |
| 833 | __u32 spinfo_rto; |
| 834 | __u32 spinfo_mtu; |
| 835 | } __attribute__((packed, aligned(4))); |
| 836 | |
| 837 | /* Peer addresses's state. */ |
| 838 | /* UNKNOWN: Peer address passed by the upper layer in sendmsg or connect[x] |
| 839 | * calls. |
| 840 | * UNCONFIRMED: Peer address received in INIT/INIT-ACK address parameters. |
| 841 | * Not yet confirmed by a heartbeat and not available for data |
| 842 | * transfers. |
| 843 | * ACTIVE : Peer address confirmed, active and available for data transfers. |
| 844 | * INACTIVE: Peer address inactive and not available for data transfers. |
| 845 | */ |
| 846 | enum sctp_spinfo_state { |
| 847 | SCTP_INACTIVE, |
| 848 | SCTP_PF, |
| 849 | SCTP_ACTIVE, |
| 850 | SCTP_UNCONFIRMED, |
| 851 | SCTP_UNKNOWN = 0xffff /* Value used for transport state unknown */ |
| 852 | }; |
| 853 | |
| 854 | /* |
| 855 | * 7.2.1 Association Status (SCTP_STATUS) |
| 856 | * |
| 857 | * Applications can retrieve current status information about an |
| 858 | * association, including association state, peer receiver window size, |
| 859 | * number of unacked data chunks, and number of data chunks pending |
| 860 | * receipt. This information is read-only. The following structure is |
| 861 | * used to access this information: |
| 862 | */ |
| 863 | struct sctp_status { |
| 864 | sctp_assoc_t sstat_assoc_id; |
| 865 | __s32 sstat_state; |
| 866 | __u32 sstat_rwnd; |
| 867 | __u16 sstat_unackdata; |
| 868 | __u16 sstat_penddata; |
| 869 | __u16 sstat_instrms; |
| 870 | __u16 sstat_outstrms; |
| 871 | __u32 sstat_fragmentation_point; |
| 872 | struct sctp_paddrinfo sstat_primary; |
| 873 | }; |
| 874 | |
| 875 | /* |
| 876 | * 7.2.3. Get the list of chunks the peer requires to be authenticated |
| 877 | * (SCTP_PEER_AUTH_CHUNKS) |
| 878 | * |
| 879 | * This option gets a list of chunks for a specified association that |
| 880 | * the peer requires to be received authenticated only. |
| 881 | */ |
| 882 | struct sctp_authchunks { |
| 883 | sctp_assoc_t gauth_assoc_id; |
| 884 | __u32 gauth_number_of_chunks; |
| 885 | uint8_t gauth_chunks[]; |
| 886 | }; |
| 887 | |
| 888 | /* The broken spelling has been released already in lksctp-tools header, |
| 889 | * so don't break anyone, now that it's fixed. |
| 890 | */ |
| 891 | #define guth_number_of_chunks gauth_number_of_chunks |
| 892 | |
| 893 | /* Association states. */ |
| 894 | enum sctp_sstat_state { |
| 895 | SCTP_EMPTY = 0, |
| 896 | SCTP_CLOSED = 1, |
| 897 | SCTP_COOKIE_WAIT = 2, |
| 898 | SCTP_COOKIE_ECHOED = 3, |
| 899 | SCTP_ESTABLISHED = 4, |
| 900 | SCTP_SHUTDOWN_PENDING = 5, |
| 901 | SCTP_SHUTDOWN_SENT = 6, |
| 902 | SCTP_SHUTDOWN_RECEIVED = 7, |
| 903 | SCTP_SHUTDOWN_ACK_SENT = 8, |
| 904 | }; |
| 905 | |
| 906 | /* |
| 907 | * 8.2.6. Get the Current Identifiers of Associations |
| 908 | * (SCTP_GET_ASSOC_ID_LIST) |
| 909 | * |
| 910 | * This option gets the current list of SCTP association identifiers of |
| 911 | * the SCTP associations handled by a one-to-many style socket. |
| 912 | */ |
| 913 | struct sctp_assoc_ids { |
| 914 | __u32 gaids_number_of_ids; |
| 915 | sctp_assoc_t gaids_assoc_id[]; |
| 916 | }; |
| 917 | |
| 918 | /* |
| 919 | * 8.3, 8.5 get all peer/local addresses in an association. |
| 920 | * This parameter struct is used by SCTP_GET_PEER_ADDRS and |
| 921 | * SCTP_GET_LOCAL_ADDRS socket options used internally to implement |
| 922 | * sctp_getpaddrs() and sctp_getladdrs() API. |
| 923 | */ |
| 924 | struct sctp_getaddrs_old { |
| 925 | sctp_assoc_t assoc_id; |
| 926 | int addr_num; |
| 927 | #ifdef __KERNEL__ |
| 928 | struct sockaddr __user *addrs; |
| 929 | #else |
| 930 | struct sockaddr *addrs; |
| 931 | #endif |
| 932 | }; |
| 933 | |
| 934 | struct sctp_getaddrs { |
| 935 | sctp_assoc_t assoc_id; /*input*/ |
| 936 | __u32 addr_num; /*output*/ |
| 937 | __u8 addrs[0]; /*output, variable size*/ |
| 938 | }; |
| 939 | |
| 940 | /* A socket user request obtained via SCTP_GET_ASSOC_STATS that retrieves |
| 941 | * association stats. All stats are counts except sas_maxrto and |
| 942 | * sas_obs_rto_ipaddr. maxrto is the max observed rto + transport since |
| 943 | * the last call. Will return 0 when RTO was not update since last call |
| 944 | */ |
| 945 | struct sctp_assoc_stats { |
| 946 | sctp_assoc_t sas_assoc_id; /* Input */ |
| 947 | /* Transport of observed max RTO */ |
| 948 | struct sockaddr_storage sas_obs_rto_ipaddr; |
| 949 | __u64 sas_maxrto; /* Maximum Observed RTO for period */ |
| 950 | __u64 sas_isacks; /* SACKs received */ |
| 951 | __u64 sas_osacks; /* SACKs sent */ |
| 952 | __u64 sas_opackets; /* Packets sent */ |
| 953 | __u64 sas_ipackets; /* Packets received */ |
| 954 | __u64 sas_rtxchunks; /* Retransmitted Chunks */ |
| 955 | __u64 sas_outofseqtsns;/* TSN received > next expected */ |
| 956 | __u64 sas_idupchunks; /* Dups received (ordered+unordered) */ |
| 957 | __u64 sas_gapcnt; /* Gap Acknowledgements Received */ |
| 958 | __u64 sas_ouodchunks; /* Unordered data chunks sent */ |
| 959 | __u64 sas_iuodchunks; /* Unordered data chunks received */ |
| 960 | __u64 sas_oodchunks; /* Ordered data chunks sent */ |
| 961 | __u64 sas_iodchunks; /* Ordered data chunks received */ |
| 962 | __u64 sas_octrlchunks; /* Control chunks sent */ |
| 963 | __u64 sas_ictrlchunks; /* Control chunks received */ |
| 964 | }; |
| 965 | |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 966 | /* |
| 967 | * 8.1 sctp_bindx() |
| 968 | * |
| 969 | * The flags parameter is formed from the bitwise OR of zero or more of the |
| 970 | * following currently defined flags: |
| 971 | */ |
| 972 | #define SCTP_BINDX_ADD_ADDR 0x01 |
| 973 | #define SCTP_BINDX_REM_ADDR 0x02 |
| 974 | |
| 975 | /* This is the structure that is passed as an argument(optval) to |
| 976 | * getsockopt(SCTP_SOCKOPT_PEELOFF). |
| 977 | */ |
| 978 | typedef struct { |
| 979 | sctp_assoc_t associd; |
| 980 | int sd; |
| 981 | } sctp_peeloff_arg_t; |
| 982 | |
Christopher Ferris | 2598113 | 2017-11-14 16:53:49 -0800 | [diff] [blame] | 983 | typedef struct { |
| 984 | sctp_peeloff_arg_t p_arg; |
| 985 | unsigned flags; |
| 986 | } sctp_peeloff_flags_arg_t; |
| 987 | |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 988 | /* |
| 989 | * Peer Address Thresholds socket option |
| 990 | */ |
| 991 | struct sctp_paddrthlds { |
| 992 | sctp_assoc_t spt_assoc_id; |
| 993 | struct sockaddr_storage spt_address; |
| 994 | __u16 spt_pathmaxrxt; |
| 995 | __u16 spt_pathpfthld; |
| 996 | }; |
| 997 | |
Christopher Ferris | 6e3550f | 2016-12-12 14:51:18 -0800 | [diff] [blame] | 998 | /* |
| 999 | * Socket Option for Getting the Association/Stream-Specific PR-SCTP Status |
| 1000 | */ |
| 1001 | struct sctp_prstatus { |
| 1002 | sctp_assoc_t sprstat_assoc_id; |
| 1003 | __u16 sprstat_sid; |
| 1004 | __u16 sprstat_policy; |
| 1005 | __u64 sprstat_abandoned_unsent; |
| 1006 | __u64 sprstat_abandoned_sent; |
| 1007 | }; |
| 1008 | |
| 1009 | struct sctp_default_prinfo { |
| 1010 | sctp_assoc_t pr_assoc_id; |
| 1011 | __u32 pr_value; |
| 1012 | __u16 pr_policy; |
| 1013 | }; |
| 1014 | |
| 1015 | struct sctp_info { |
| 1016 | __u32 sctpi_tag; |
| 1017 | __u32 sctpi_state; |
| 1018 | __u32 sctpi_rwnd; |
| 1019 | __u16 sctpi_unackdata; |
| 1020 | __u16 sctpi_penddata; |
| 1021 | __u16 sctpi_instrms; |
| 1022 | __u16 sctpi_outstrms; |
| 1023 | __u32 sctpi_fragmentation_point; |
| 1024 | __u32 sctpi_inqueue; |
| 1025 | __u32 sctpi_outqueue; |
| 1026 | __u32 sctpi_overall_error; |
| 1027 | __u32 sctpi_max_burst; |
| 1028 | __u32 sctpi_maxseg; |
| 1029 | __u32 sctpi_peer_rwnd; |
| 1030 | __u32 sctpi_peer_tag; |
| 1031 | __u8 sctpi_peer_capable; |
| 1032 | __u8 sctpi_peer_sack; |
| 1033 | __u16 __reserved1; |
| 1034 | |
| 1035 | /* assoc status info */ |
| 1036 | __u64 sctpi_isacks; |
| 1037 | __u64 sctpi_osacks; |
| 1038 | __u64 sctpi_opackets; |
| 1039 | __u64 sctpi_ipackets; |
| 1040 | __u64 sctpi_rtxchunks; |
| 1041 | __u64 sctpi_outofseqtsns; |
| 1042 | __u64 sctpi_idupchunks; |
| 1043 | __u64 sctpi_gapcnt; |
| 1044 | __u64 sctpi_ouodchunks; |
| 1045 | __u64 sctpi_iuodchunks; |
| 1046 | __u64 sctpi_oodchunks; |
| 1047 | __u64 sctpi_iodchunks; |
| 1048 | __u64 sctpi_octrlchunks; |
| 1049 | __u64 sctpi_ictrlchunks; |
| 1050 | |
| 1051 | /* primary transport info */ |
| 1052 | struct sockaddr_storage sctpi_p_address; |
| 1053 | __s32 sctpi_p_state; |
| 1054 | __u32 sctpi_p_cwnd; |
| 1055 | __u32 sctpi_p_srtt; |
| 1056 | __u32 sctpi_p_rto; |
| 1057 | __u32 sctpi_p_hbinterval; |
| 1058 | __u32 sctpi_p_pathmaxrxt; |
| 1059 | __u32 sctpi_p_sackdelay; |
| 1060 | __u32 sctpi_p_sackfreq; |
| 1061 | __u32 sctpi_p_ssthresh; |
| 1062 | __u32 sctpi_p_partial_bytes_acked; |
| 1063 | __u32 sctpi_p_flight_size; |
| 1064 | __u16 sctpi_p_error; |
| 1065 | __u16 __reserved2; |
| 1066 | |
| 1067 | /* sctp sock info */ |
| 1068 | __u32 sctpi_s_autoclose; |
| 1069 | __u32 sctpi_s_adaptation_ind; |
| 1070 | __u32 sctpi_s_pd_point; |
| 1071 | __u8 sctpi_s_nodelay; |
| 1072 | __u8 sctpi_s_disable_fragments; |
| 1073 | __u8 sctpi_s_v4mapped; |
| 1074 | __u8 sctpi_s_frag_interleave; |
| 1075 | __u32 sctpi_s_type; |
| 1076 | __u32 __reserved3; |
| 1077 | }; |
| 1078 | |
Christopher Ferris | 0543f74 | 2017-07-26 13:09:46 -0700 | [diff] [blame] | 1079 | struct sctp_reset_streams { |
| 1080 | sctp_assoc_t srs_assoc_id; |
| 1081 | uint16_t srs_flags; |
| 1082 | uint16_t srs_number_streams; /* 0 == ALL */ |
| 1083 | uint16_t srs_stream_list[]; /* list if srs_num_streams is not 0 */ |
| 1084 | }; |
| 1085 | |
| 1086 | struct sctp_add_streams { |
| 1087 | sctp_assoc_t sas_assoc_id; |
| 1088 | uint16_t sas_instrms; |
| 1089 | uint16_t sas_outstrms; |
| 1090 | }; |
| 1091 | |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 1092 | #endif /* _UAPI_SCTP_H */ |