1e2be04c7SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ 21b866434SDaniel Borkmann /* SCTP kernel implementation 31b866434SDaniel Borkmann * (C) Copyright IBM Corp. 2001, 2004 41b866434SDaniel Borkmann * Copyright (c) 1999-2000 Cisco, Inc. 51b866434SDaniel Borkmann * Copyright (c) 1999-2001 Motorola, Inc. 61b866434SDaniel Borkmann * Copyright (c) 2002 Intel Corp. 71b866434SDaniel Borkmann * 81b866434SDaniel Borkmann * This file is part of the SCTP kernel implementation 91b866434SDaniel Borkmann * 101b866434SDaniel Borkmann * This header represents the structures and constants needed to support 111b866434SDaniel Borkmann * the SCTP Extension to the Sockets API. 121b866434SDaniel Borkmann * 131b866434SDaniel Borkmann * This SCTP implementation is free software; 141b866434SDaniel Borkmann * you can redistribute it and/or modify it under the terms of 151b866434SDaniel Borkmann * the GNU General Public License as published by 161b866434SDaniel Borkmann * the Free Software Foundation; either version 2, or (at your option) 171b866434SDaniel Borkmann * any later version. 181b866434SDaniel Borkmann * 191b866434SDaniel Borkmann * This SCTP implementation is distributed in the hope that it 201b866434SDaniel Borkmann * will be useful, but WITHOUT ANY WARRANTY; without even the implied 211b866434SDaniel Borkmann * ************************ 221b866434SDaniel Borkmann * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 231b866434SDaniel Borkmann * See the GNU General Public License for more details. 241b866434SDaniel Borkmann * 251b866434SDaniel Borkmann * You should have received a copy of the GNU General Public License 264b2f13a2SJeff Kirsher * along with GNU CC; see the file COPYING. If not, see 274b2f13a2SJeff Kirsher * <http://www.gnu.org/licenses/>. 281b866434SDaniel Borkmann * 291b866434SDaniel Borkmann * Please send any bug reports or fixes you make to the 301b866434SDaniel Borkmann * email address(es): 3191705c61SDaniel Borkmann * lksctp developers <linux-sctp@vger.kernel.org> 321b866434SDaniel Borkmann * 331b866434SDaniel Borkmann * Or submit a bug report through the following website: 341b866434SDaniel Borkmann * http://www.sf.net/projects/lksctp 351b866434SDaniel Borkmann * 361b866434SDaniel Borkmann * Written or modified by: 371b866434SDaniel Borkmann * La Monte H.P. Yarroll <piggy@acm.org> 381b866434SDaniel Borkmann * R. Stewart <randall@sctp.chicago.il.us> 391b866434SDaniel Borkmann * K. Morneau <kmorneau@cisco.com> 401b866434SDaniel Borkmann * Q. Xie <qxie1@email.mot.com> 411b866434SDaniel Borkmann * Karl Knutson <karl@athena.chicago.il.us> 421b866434SDaniel Borkmann * Jon Grimm <jgrimm@us.ibm.com> 431b866434SDaniel Borkmann * Daisy Chang <daisyc@us.ibm.com> 441b866434SDaniel Borkmann * Ryan Layer <rmlayer@us.ibm.com> 451b866434SDaniel Borkmann * Ardelle Fan <ardelle.fan@intel.com> 461b866434SDaniel Borkmann * Sridhar Samudrala <sri@us.ibm.com> 471b866434SDaniel Borkmann * Inaky Perez-Gonzalez <inaky.gonzalez@intel.com> 481b866434SDaniel Borkmann * Vlad Yasevich <vladislav.yasevich@hp.com> 491b866434SDaniel Borkmann * 501b866434SDaniel Borkmann * Any bugs reported given to us we will try to fix... any fixes shared will 511b866434SDaniel Borkmann * be incorporated into the next SCTP release. 521b866434SDaniel Borkmann */ 531b866434SDaniel Borkmann 541b866434SDaniel Borkmann #ifndef _UAPI_SCTP_H 551b866434SDaniel Borkmann #define _UAPI_SCTP_H 561b866434SDaniel Borkmann 571b866434SDaniel Borkmann #include <linux/types.h> 581b866434SDaniel Borkmann #include <linux/socket.h> 591b866434SDaniel Borkmann 601b866434SDaniel Borkmann typedef __s32 sctp_assoc_t; 611b866434SDaniel Borkmann 6280df2704SXin Long #define SCTP_FUTURE_ASSOC 0 6380df2704SXin Long #define SCTP_CURRENT_ASSOC 1 6480df2704SXin Long #define SCTP_ALL_ASSOC 2 6580df2704SXin Long 661b866434SDaniel Borkmann /* The following symbols come from the Sockets API Extensions for 671b866434SDaniel Borkmann * SCTP <draft-ietf-tsvwg-sctpsocket-07.txt>. 681b866434SDaniel Borkmann */ 691b866434SDaniel Borkmann #define SCTP_RTOINFO 0 701b866434SDaniel Borkmann #define SCTP_ASSOCINFO 1 711b866434SDaniel Borkmann #define SCTP_INITMSG 2 721b866434SDaniel Borkmann #define SCTP_NODELAY 3 /* Get/set nodelay option. */ 731b866434SDaniel Borkmann #define SCTP_AUTOCLOSE 4 741b866434SDaniel Borkmann #define SCTP_SET_PEER_PRIMARY_ADDR 5 751b866434SDaniel Borkmann #define SCTP_PRIMARY_ADDR 6 761b866434SDaniel Borkmann #define SCTP_ADAPTATION_LAYER 7 771b866434SDaniel Borkmann #define SCTP_DISABLE_FRAGMENTS 8 781b866434SDaniel Borkmann #define SCTP_PEER_ADDR_PARAMS 9 791b866434SDaniel Borkmann #define SCTP_DEFAULT_SEND_PARAM 10 801b866434SDaniel Borkmann #define SCTP_EVENTS 11 811b866434SDaniel Borkmann #define SCTP_I_WANT_MAPPED_V4_ADDR 12 /* Turn on/off mapped v4 addresses */ 821b866434SDaniel Borkmann #define SCTP_MAXSEG 13 /* Get/set maximum fragment. */ 831b866434SDaniel Borkmann #define SCTP_STATUS 14 841b866434SDaniel Borkmann #define SCTP_GET_PEER_ADDR_INFO 15 851b866434SDaniel Borkmann #define SCTP_DELAYED_ACK_TIME 16 861b866434SDaniel Borkmann #define SCTP_DELAYED_ACK SCTP_DELAYED_ACK_TIME 871b866434SDaniel Borkmann #define SCTP_DELAYED_SACK SCTP_DELAYED_ACK_TIME 881b866434SDaniel Borkmann #define SCTP_CONTEXT 17 891b866434SDaniel Borkmann #define SCTP_FRAGMENT_INTERLEAVE 18 901b866434SDaniel Borkmann #define SCTP_PARTIAL_DELIVERY_POINT 19 /* Set/Get partial delivery point */ 911b866434SDaniel Borkmann #define SCTP_MAX_BURST 20 /* Set/Get max burst */ 921b866434SDaniel Borkmann #define SCTP_AUTH_CHUNK 21 /* Set only: add a chunk type to authenticate */ 931b866434SDaniel Borkmann #define SCTP_HMAC_IDENT 22 941b866434SDaniel Borkmann #define SCTP_AUTH_KEY 23 951b866434SDaniel Borkmann #define SCTP_AUTH_ACTIVE_KEY 24 961b866434SDaniel Borkmann #define SCTP_AUTH_DELETE_KEY 25 971b866434SDaniel Borkmann #define SCTP_PEER_AUTH_CHUNKS 26 /* Read only */ 981b866434SDaniel Borkmann #define SCTP_LOCAL_AUTH_CHUNKS 27 /* Read only */ 991b866434SDaniel Borkmann #define SCTP_GET_ASSOC_NUMBER 28 /* Read only */ 1001b866434SDaniel Borkmann #define SCTP_GET_ASSOC_ID_LIST 29 /* Read only */ 1011b866434SDaniel Borkmann #define SCTP_AUTO_ASCONF 30 1021b866434SDaniel Borkmann #define SCTP_PEER_ADDR_THLDS 31 1030d3a421dSGeir Ola Vaagland #define SCTP_RECVRCVINFO 32 1042347c80fSGeir Ola Vaagland #define SCTP_RECVNXTINFO 33 1056b3fd5f3SGeir Ola Vaagland #define SCTP_DEFAULT_SNDINFO 34 106601590ecSXin Long #define SCTP_AUTH_DEACTIVATE_KEY 35 107b0e9a2feSXin Long #define SCTP_REUSE_PORT 36 108d467ac0aSXin Long #define SCTP_PEER_ADDR_THLDS_V2 37 1091b866434SDaniel Borkmann 1101b866434SDaniel Borkmann /* Internal Socket Options. Some of the sctp library functions are 1111b866434SDaniel Borkmann * implemented using these socket options. 1121b866434SDaniel Borkmann */ 1131b866434SDaniel Borkmann #define SCTP_SOCKOPT_BINDX_ADD 100 /* BINDX requests for adding addrs */ 1141b866434SDaniel Borkmann #define SCTP_SOCKOPT_BINDX_REM 101 /* BINDX requests for removing addrs. */ 1151b866434SDaniel Borkmann #define SCTP_SOCKOPT_PEELOFF 102 /* peel off association. */ 1161b866434SDaniel Borkmann /* Options 104-106 are deprecated and removed. Do not use this space */ 1171b866434SDaniel Borkmann #define SCTP_SOCKOPT_CONNECTX_OLD 107 /* CONNECTX old requests. */ 1181b866434SDaniel Borkmann #define SCTP_GET_PEER_ADDRS 108 /* Get all peer address. */ 1191b866434SDaniel Borkmann #define SCTP_GET_LOCAL_ADDRS 109 /* Get all local address. */ 1201b866434SDaniel Borkmann #define SCTP_SOCKOPT_CONNECTX 110 /* CONNECTX requests. */ 1211b866434SDaniel Borkmann #define SCTP_SOCKOPT_CONNECTX3 111 /* CONNECTX requests (updated) */ 1221b866434SDaniel Borkmann #define SCTP_GET_ASSOC_STATS 112 /* Read only */ 12328aa4c26SXin Long #define SCTP_PR_SUPPORTED 113 124f959fb44SXin Long #define SCTP_DEFAULT_PRINFO 114 125826d253dSXin Long #define SCTP_PR_ASSOC_STATUS 115 126d229d48dSXin Long #define SCTP_PR_STREAM_STATUS 116 127c0d8bab6SXin Long #define SCTP_RECONFIG_SUPPORTED 117 1289fb657aeSXin Long #define SCTP_ENABLE_STREAM_RESET 118 1297f9d68acSXin Long #define SCTP_RESET_STREAMS 119 130a92ce1a4SXin Long #define SCTP_RESET_ASSOC 120 131242bd2d5SXin Long #define SCTP_ADD_STREAMS 121 1322cb5c8e3SNeil Horman #define SCTP_SOCKOPT_PEELOFF_FLAGS 122 13313aa8770SMarcelo Ricardo Leitner #define SCTP_STREAM_SCHEDULER 123 1340ccdf3c7SMarcelo Ricardo Leitner #define SCTP_STREAM_SCHEDULER_VALUE 124 135772a5869SXin Long #define SCTP_INTERLEAVING_SUPPORTED 125 1362277c7cdSRichard Haines #define SCTP_SENDMSG_CONNECT 126 137480ba9c1SXin Long #define SCTP_EVENT 127 138df2c71ffSXin Long #define SCTP_ASCONF_SUPPORTED 128 13956dd525aSXin Long #define SCTP_AUTH_SUPPORTED 129 140d5886b91SXin Long #define SCTP_ECN_SUPPORTED 130 1418d2a6935SXin Long #define SCTP_EXPOSE_POTENTIALLY_FAILED_STATE 131 1428d2a6935SXin Long #define SCTP_EXPOSE_PF_STATE SCTP_EXPOSE_POTENTIALLY_FAILED_STATE 1438dba2960SXin Long #define SCTP_REMOTE_UDP_ENCAPS_PORT 132 1443190b649SXin Long #define SCTP_PLPMTUD_PROBE_INTERVAL 133 145f959fb44SXin Long 146f959fb44SXin Long /* PR-SCTP policies */ 147f959fb44SXin Long #define SCTP_PR_SCTP_NONE 0x0000 148f959fb44SXin Long #define SCTP_PR_SCTP_TTL 0x0010 149f959fb44SXin Long #define SCTP_PR_SCTP_RTX 0x0020 150f959fb44SXin Long #define SCTP_PR_SCTP_PRIO 0x0030 151f959fb44SXin Long #define SCTP_PR_SCTP_MAX SCTP_PR_SCTP_PRIO 152f959fb44SXin Long #define SCTP_PR_SCTP_MASK 0x0030 153f959fb44SXin Long 154f959fb44SXin Long #define __SCTP_PR_INDEX(x) ((x >> 4) - 1) 155f959fb44SXin Long #define SCTP_PR_INDEX(x) __SCTP_PR_INDEX(SCTP_PR_SCTP_ ## x) 156f959fb44SXin Long 157f959fb44SXin Long #define SCTP_PR_POLICY(x) ((x) & SCTP_PR_SCTP_MASK) 158f959fb44SXin Long #define SCTP_PR_SET_POLICY(flags, x) \ 159f959fb44SXin Long do { \ 160f959fb44SXin Long flags &= ~SCTP_PR_SCTP_MASK; \ 161f959fb44SXin Long flags |= x; \ 162f959fb44SXin Long } while (0) 163f959fb44SXin Long 164f959fb44SXin Long #define SCTP_PR_TTL_ENABLED(x) (SCTP_PR_POLICY(x) == SCTP_PR_SCTP_TTL) 165f959fb44SXin Long #define SCTP_PR_RTX_ENABLED(x) (SCTP_PR_POLICY(x) == SCTP_PR_SCTP_RTX) 166f959fb44SXin Long #define SCTP_PR_PRIO_ENABLED(x) (SCTP_PR_POLICY(x) == SCTP_PR_SCTP_PRIO) 1671b866434SDaniel Borkmann 1689fb657aeSXin Long /* For enable stream reset */ 1699fb657aeSXin Long #define SCTP_ENABLE_RESET_STREAM_REQ 0x01 1709fb657aeSXin Long #define SCTP_ENABLE_RESET_ASSOC_REQ 0x02 1719fb657aeSXin Long #define SCTP_ENABLE_CHANGE_ASSOC_REQ 0x04 1729fb657aeSXin Long #define SCTP_ENABLE_STRRESET_MASK 0x07 1739fb657aeSXin Long 1747f9d68acSXin Long #define SCTP_STREAM_RESET_INCOMING 0x01 1757f9d68acSXin Long #define SCTP_STREAM_RESET_OUTGOING 0x02 1767f9d68acSXin Long 1772347c80fSGeir Ola Vaagland /* These are bit fields for msghdr->msg_flags. See section 5.1. */ 1782347c80fSGeir Ola Vaagland /* On user space Linux, these live in <bits/socket.h> as an enum. */ 1792347c80fSGeir Ola Vaagland enum sctp_msg_flags { 1802347c80fSGeir Ola Vaagland MSG_NOTIFICATION = 0x8000, 1812347c80fSGeir Ola Vaagland #define MSG_NOTIFICATION MSG_NOTIFICATION 1822347c80fSGeir Ola Vaagland }; 1832347c80fSGeir Ola Vaagland 1840d3a421dSGeir Ola Vaagland /* 5.3.1 SCTP Initiation Structure (SCTP_INIT) 1851b866434SDaniel Borkmann * 1861b866434SDaniel Borkmann * This cmsghdr structure provides information for initializing new 1871b866434SDaniel Borkmann * SCTP associations with sendmsg(). The SCTP_INITMSG socket option 1881b866434SDaniel Borkmann * uses this same data structure. This structure is not used for 1891b866434SDaniel Borkmann * recvmsg(). 1901b866434SDaniel Borkmann * 1911b866434SDaniel Borkmann * cmsg_level cmsg_type cmsg_data[] 1921b866434SDaniel Borkmann * ------------ ------------ ---------------------- 1931b866434SDaniel Borkmann * IPPROTO_SCTP SCTP_INIT struct sctp_initmsg 1941b866434SDaniel Borkmann */ 1951b866434SDaniel Borkmann struct sctp_initmsg { 1961b866434SDaniel Borkmann __u16 sinit_num_ostreams; 1971b866434SDaniel Borkmann __u16 sinit_max_instreams; 1981b866434SDaniel Borkmann __u16 sinit_max_attempts; 1991b866434SDaniel Borkmann __u16 sinit_max_init_timeo; 2001b866434SDaniel Borkmann }; 2011b866434SDaniel Borkmann 2020d3a421dSGeir Ola Vaagland /* 5.3.2 SCTP Header Information Structure (SCTP_SNDRCV) 2031b866434SDaniel Borkmann * 2041b866434SDaniel Borkmann * This cmsghdr structure specifies SCTP options for sendmsg() and 2051b866434SDaniel Borkmann * describes SCTP header information about a received message through 2061b866434SDaniel Borkmann * recvmsg(). 2071b866434SDaniel Borkmann * 2081b866434SDaniel Borkmann * cmsg_level cmsg_type cmsg_data[] 2091b866434SDaniel Borkmann * ------------ ------------ ---------------------- 2101b866434SDaniel Borkmann * IPPROTO_SCTP SCTP_SNDRCV struct sctp_sndrcvinfo 2111b866434SDaniel Borkmann */ 2121b866434SDaniel Borkmann struct sctp_sndrcvinfo { 2131b866434SDaniel Borkmann __u16 sinfo_stream; 2141b866434SDaniel Borkmann __u16 sinfo_ssn; 2151b866434SDaniel Borkmann __u16 sinfo_flags; 2161b866434SDaniel Borkmann __u32 sinfo_ppid; 2171b866434SDaniel Borkmann __u32 sinfo_context; 2181b866434SDaniel Borkmann __u32 sinfo_timetolive; 2191b866434SDaniel Borkmann __u32 sinfo_tsn; 2201b866434SDaniel Borkmann __u32 sinfo_cumtsn; 2211b866434SDaniel Borkmann sctp_assoc_t sinfo_assoc_id; 2221b866434SDaniel Borkmann }; 2231b866434SDaniel Borkmann 22463b94938SGeir Ola Vaagland /* 5.3.4 SCTP Send Information Structure (SCTP_SNDINFO) 22563b94938SGeir Ola Vaagland * 22663b94938SGeir Ola Vaagland * This cmsghdr structure specifies SCTP options for sendmsg(). 22763b94938SGeir Ola Vaagland * 22863b94938SGeir Ola Vaagland * cmsg_level cmsg_type cmsg_data[] 22963b94938SGeir Ola Vaagland * ------------ ------------ ------------------- 23063b94938SGeir Ola Vaagland * IPPROTO_SCTP SCTP_SNDINFO struct sctp_sndinfo 23163b94938SGeir Ola Vaagland */ 23263b94938SGeir Ola Vaagland struct sctp_sndinfo { 23363b94938SGeir Ola Vaagland __u16 snd_sid; 23463b94938SGeir Ola Vaagland __u16 snd_flags; 23563b94938SGeir Ola Vaagland __u32 snd_ppid; 23663b94938SGeir Ola Vaagland __u32 snd_context; 23763b94938SGeir Ola Vaagland sctp_assoc_t snd_assoc_id; 23863b94938SGeir Ola Vaagland }; 23963b94938SGeir Ola Vaagland 2400d3a421dSGeir Ola Vaagland /* 5.3.5 SCTP Receive Information Structure (SCTP_RCVINFO) 2410d3a421dSGeir Ola Vaagland * 2420d3a421dSGeir Ola Vaagland * This cmsghdr structure describes SCTP receive information 2430d3a421dSGeir Ola Vaagland * about a received message through recvmsg(). 2440d3a421dSGeir Ola Vaagland * 2450d3a421dSGeir Ola Vaagland * cmsg_level cmsg_type cmsg_data[] 2460d3a421dSGeir Ola Vaagland * ------------ ------------ ------------------- 2470d3a421dSGeir Ola Vaagland * IPPROTO_SCTP SCTP_RCVINFO struct sctp_rcvinfo 2480d3a421dSGeir Ola Vaagland */ 2490d3a421dSGeir Ola Vaagland struct sctp_rcvinfo { 2500d3a421dSGeir Ola Vaagland __u16 rcv_sid; 2510d3a421dSGeir Ola Vaagland __u16 rcv_ssn; 2520d3a421dSGeir Ola Vaagland __u16 rcv_flags; 2530d3a421dSGeir Ola Vaagland __u32 rcv_ppid; 2540d3a421dSGeir Ola Vaagland __u32 rcv_tsn; 2550d3a421dSGeir Ola Vaagland __u32 rcv_cumtsn; 2560d3a421dSGeir Ola Vaagland __u32 rcv_context; 2570d3a421dSGeir Ola Vaagland sctp_assoc_t rcv_assoc_id; 2580d3a421dSGeir Ola Vaagland }; 2590d3a421dSGeir Ola Vaagland 2602347c80fSGeir Ola Vaagland /* 5.3.6 SCTP Next Receive Information Structure (SCTP_NXTINFO) 2612347c80fSGeir Ola Vaagland * 2622347c80fSGeir Ola Vaagland * This cmsghdr structure describes SCTP receive information 2632347c80fSGeir Ola Vaagland * of the next message that will be delivered through recvmsg() 2642347c80fSGeir Ola Vaagland * if this information is already available when delivering 2652347c80fSGeir Ola Vaagland * the current message. 2662347c80fSGeir Ola Vaagland * 2672347c80fSGeir Ola Vaagland * cmsg_level cmsg_type cmsg_data[] 2682347c80fSGeir Ola Vaagland * ------------ ------------ ------------------- 2692347c80fSGeir Ola Vaagland * IPPROTO_SCTP SCTP_NXTINFO struct sctp_nxtinfo 2702347c80fSGeir Ola Vaagland */ 2712347c80fSGeir Ola Vaagland struct sctp_nxtinfo { 2722347c80fSGeir Ola Vaagland __u16 nxt_sid; 2732347c80fSGeir Ola Vaagland __u16 nxt_flags; 2742347c80fSGeir Ola Vaagland __u32 nxt_ppid; 2752347c80fSGeir Ola Vaagland __u32 nxt_length; 2762347c80fSGeir Ola Vaagland sctp_assoc_t nxt_assoc_id; 2772347c80fSGeir Ola Vaagland }; 2782347c80fSGeir Ola Vaagland 279ed63afb8SXin Long /* 5.3.7 SCTP PR-SCTP Information Structure (SCTP_PRINFO) 280ed63afb8SXin Long * 281ed63afb8SXin Long * This cmsghdr structure specifies SCTP options for sendmsg(). 282ed63afb8SXin Long * 283ed63afb8SXin Long * cmsg_level cmsg_type cmsg_data[] 284ed63afb8SXin Long * ------------ ------------ ------------------- 285ed63afb8SXin Long * IPPROTO_SCTP SCTP_PRINFO struct sctp_prinfo 286ed63afb8SXin Long */ 287ed63afb8SXin Long struct sctp_prinfo { 288ed63afb8SXin Long __u16 pr_policy; 289ed63afb8SXin Long __u32 pr_value; 290ed63afb8SXin Long }; 291ed63afb8SXin Long 2923ff547c0SXin Long /* 5.3.8 SCTP AUTH Information Structure (SCTP_AUTHINFO) 2933ff547c0SXin Long * 2943ff547c0SXin Long * This cmsghdr structure specifies SCTP options for sendmsg(). 2953ff547c0SXin Long * 2963ff547c0SXin Long * cmsg_level cmsg_type cmsg_data[] 2973ff547c0SXin Long * ------------ ------------ ------------------- 2983ff547c0SXin Long * IPPROTO_SCTP SCTP_AUTHINFO struct sctp_authinfo 2993ff547c0SXin Long */ 3003ff547c0SXin Long struct sctp_authinfo { 3013ff547c0SXin Long __u16 auth_keynumber; 3023ff547c0SXin Long }; 3033ff547c0SXin Long 3041b866434SDaniel Borkmann /* 3051b866434SDaniel Borkmann * sinfo_flags: 16 bits (unsigned integer) 3061b866434SDaniel Borkmann * 3071b866434SDaniel Borkmann * This field may contain any of the following flags and is composed of 3081b866434SDaniel Borkmann * a bitwise OR of these values. 3091b866434SDaniel Borkmann */ 3101b866434SDaniel Borkmann enum sctp_sinfo_flags { 3112347c80fSGeir Ola Vaagland SCTP_UNORDERED = (1 << 0), /* Send/receive message unordered. */ 3122347c80fSGeir Ola Vaagland SCTP_ADDR_OVER = (1 << 1), /* Override the primary destination. */ 3132347c80fSGeir Ola Vaagland SCTP_ABORT = (1 << 2), /* Send an ABORT message to the peer. */ 3142347c80fSGeir Ola Vaagland SCTP_SACK_IMMEDIATELY = (1 << 3), /* SACK should be sent without delay. */ 31549102805SXin Long /* 2 bits here have been used by SCTP_PR_SCTP_MASK */ 31649102805SXin Long SCTP_SENDALL = (1 << 6), 3170ac1077eSXin Long SCTP_PR_SCTP_ALL = (1 << 7), 3182347c80fSGeir Ola Vaagland SCTP_NOTIFICATION = MSG_NOTIFICATION, /* Next message is not user msg but notification. */ 3191b866434SDaniel Borkmann SCTP_EOF = MSG_FIN, /* Initiate graceful shutdown process. */ 3201b866434SDaniel Borkmann }; 3211b866434SDaniel Borkmann 3221b866434SDaniel Borkmann typedef union { 3231b866434SDaniel Borkmann __u8 raw; 3241b866434SDaniel Borkmann struct sctp_initmsg init; 3251b866434SDaniel Borkmann struct sctp_sndrcvinfo sndrcv; 3261b866434SDaniel Borkmann } sctp_cmsg_data_t; 3271b866434SDaniel Borkmann 3281b866434SDaniel Borkmann /* These are cmsg_types. */ 3291b866434SDaniel Borkmann typedef enum sctp_cmsg_type { 3301b866434SDaniel Borkmann SCTP_INIT, /* 5.2.1 SCTP Initiation Structure */ 3311b866434SDaniel Borkmann #define SCTP_INIT SCTP_INIT 3321b866434SDaniel Borkmann SCTP_SNDRCV, /* 5.2.2 SCTP Header Information Structure */ 3331b866434SDaniel Borkmann #define SCTP_SNDRCV SCTP_SNDRCV 33463b94938SGeir Ola Vaagland SCTP_SNDINFO, /* 5.3.4 SCTP Send Information Structure */ 33563b94938SGeir Ola Vaagland #define SCTP_SNDINFO SCTP_SNDINFO 3360d3a421dSGeir Ola Vaagland SCTP_RCVINFO, /* 5.3.5 SCTP Receive Information Structure */ 3370d3a421dSGeir Ola Vaagland #define SCTP_RCVINFO SCTP_RCVINFO 3382347c80fSGeir Ola Vaagland SCTP_NXTINFO, /* 5.3.6 SCTP Next Receive Information Structure */ 3392347c80fSGeir Ola Vaagland #define SCTP_NXTINFO SCTP_NXTINFO 340ed63afb8SXin Long SCTP_PRINFO, /* 5.3.7 SCTP PR-SCTP Information Structure */ 341ed63afb8SXin Long #define SCTP_PRINFO SCTP_PRINFO 3423ff547c0SXin Long SCTP_AUTHINFO, /* 5.3.8 SCTP AUTH Information Structure */ 3432c0dbaa0SXin Long #define SCTP_AUTHINFO SCTP_AUTHINFO 3442c0dbaa0SXin Long SCTP_DSTADDRV4, /* 5.3.9 SCTP Destination IPv4 Address Structure */ 3452c0dbaa0SXin Long #define SCTP_DSTADDRV4 SCTP_DSTADDRV4 3462c0dbaa0SXin Long SCTP_DSTADDRV6, /* 5.3.10 SCTP Destination IPv6 Address Structure */ 3472c0dbaa0SXin Long #define SCTP_DSTADDRV6 SCTP_DSTADDRV6 3481b866434SDaniel Borkmann } sctp_cmsg_t; 3491b866434SDaniel Borkmann 3501b866434SDaniel Borkmann /* 3511b866434SDaniel Borkmann * 5.3.1.1 SCTP_ASSOC_CHANGE 3521b866434SDaniel Borkmann * 3531b866434SDaniel Borkmann * Communication notifications inform the ULP that an SCTP association 3541b866434SDaniel Borkmann * has either begun or ended. The identifier for a new association is 3551b866434SDaniel Borkmann * provided by this notificaion. The notification information has the 3561b866434SDaniel Borkmann * following format: 3571b866434SDaniel Borkmann * 3581b866434SDaniel Borkmann */ 3591b866434SDaniel Borkmann struct sctp_assoc_change { 3601b866434SDaniel Borkmann __u16 sac_type; 3611b866434SDaniel Borkmann __u16 sac_flags; 3621b866434SDaniel Borkmann __u32 sac_length; 3631b866434SDaniel Borkmann __u16 sac_state; 3641b866434SDaniel Borkmann __u16 sac_error; 3651b866434SDaniel Borkmann __u16 sac_outbound_streams; 3661b866434SDaniel Borkmann __u16 sac_inbound_streams; 3671b866434SDaniel Borkmann sctp_assoc_t sac_assoc_id; 36894dfc73eSGustavo A. R. Silva __u8 sac_info[]; 3691b866434SDaniel Borkmann }; 3701b866434SDaniel Borkmann 3711b866434SDaniel Borkmann /* 3721b866434SDaniel Borkmann * sac_state: 32 bits (signed integer) 3731b866434SDaniel Borkmann * 3741b866434SDaniel Borkmann * This field holds one of a number of values that communicate the 3751b866434SDaniel Borkmann * event that happened to the association. They include: 3761b866434SDaniel Borkmann * 3771b866434SDaniel Borkmann * Note: The following state names deviate from the API draft as 3781b866434SDaniel Borkmann * the names clash too easily with other kernel symbols. 3791b866434SDaniel Borkmann */ 3801b866434SDaniel Borkmann enum sctp_sac_state { 3811b866434SDaniel Borkmann SCTP_COMM_UP, 3821b866434SDaniel Borkmann SCTP_COMM_LOST, 3831b866434SDaniel Borkmann SCTP_RESTART, 3841b866434SDaniel Borkmann SCTP_SHUTDOWN_COMP, 3851b866434SDaniel Borkmann SCTP_CANT_STR_ASSOC, 3861b866434SDaniel Borkmann }; 3871b866434SDaniel Borkmann 3881b866434SDaniel Borkmann /* 3891b866434SDaniel Borkmann * 5.3.1.2 SCTP_PEER_ADDR_CHANGE 3901b866434SDaniel Borkmann * 3911b866434SDaniel Borkmann * When a destination address on a multi-homed peer encounters a change 3921b866434SDaniel Borkmann * an interface details event is sent. The information has the 3931b866434SDaniel Borkmann * following structure: 3941b866434SDaniel Borkmann */ 3951b866434SDaniel Borkmann struct sctp_paddr_change { 3961b866434SDaniel Borkmann __u16 spc_type; 3971b866434SDaniel Borkmann __u16 spc_flags; 3981b866434SDaniel Borkmann __u32 spc_length; 3991b866434SDaniel Borkmann struct sockaddr_storage spc_aaddr; 4001b866434SDaniel Borkmann int spc_state; 4011b866434SDaniel Borkmann int spc_error; 4021b866434SDaniel Borkmann sctp_assoc_t spc_assoc_id; 4031b866434SDaniel Borkmann } __attribute__((packed, aligned(4))); 4041b866434SDaniel Borkmann 4051b866434SDaniel Borkmann /* 4061b866434SDaniel Borkmann * spc_state: 32 bits (signed integer) 4071b866434SDaniel Borkmann * 4081b866434SDaniel Borkmann * This field holds one of a number of values that communicate the 4091b866434SDaniel Borkmann * event that happened to the address. They include: 4101b866434SDaniel Borkmann */ 4111b866434SDaniel Borkmann enum sctp_spc_state { 4121b866434SDaniel Borkmann SCTP_ADDR_AVAILABLE, 4131b866434SDaniel Borkmann SCTP_ADDR_UNREACHABLE, 4141b866434SDaniel Borkmann SCTP_ADDR_REMOVED, 4151b866434SDaniel Borkmann SCTP_ADDR_ADDED, 4161b866434SDaniel Borkmann SCTP_ADDR_MADE_PRIM, 4171b866434SDaniel Borkmann SCTP_ADDR_CONFIRMED, 418768e1518SXin Long SCTP_ADDR_POTENTIALLY_FAILED, 419768e1518SXin Long #define SCTP_ADDR_PF SCTP_ADDR_POTENTIALLY_FAILED 4201b866434SDaniel Borkmann }; 4211b866434SDaniel Borkmann 4221b866434SDaniel Borkmann 4231b866434SDaniel Borkmann /* 4241b866434SDaniel Borkmann * 5.3.1.3 SCTP_REMOTE_ERROR 4251b866434SDaniel Borkmann * 4261b866434SDaniel Borkmann * A remote peer may send an Operational Error message to its peer. 4271b866434SDaniel Borkmann * This message indicates a variety of error conditions on an 4281b866434SDaniel Borkmann * association. The entire error TLV as it appears on the wire is 4291b866434SDaniel Borkmann * included in a SCTP_REMOTE_ERROR event. Please refer to the SCTP 4301b866434SDaniel Borkmann * specification [SCTP] and any extensions for a list of possible 4311b866434SDaniel Borkmann * error formats. SCTP error TLVs have the format: 4321b866434SDaniel Borkmann */ 4331b866434SDaniel Borkmann struct sctp_remote_error { 4341b866434SDaniel Borkmann __u16 sre_type; 4351b866434SDaniel Borkmann __u16 sre_flags; 4361b866434SDaniel Borkmann __u32 sre_length; 437978aa047SXin Long __be16 sre_error; 4381b866434SDaniel Borkmann sctp_assoc_t sre_assoc_id; 43994dfc73eSGustavo A. R. Silva __u8 sre_data[]; 4401b866434SDaniel Borkmann }; 4411b866434SDaniel Borkmann 4421b866434SDaniel Borkmann 4431b866434SDaniel Borkmann /* 4441b866434SDaniel Borkmann * 5.3.1.4 SCTP_SEND_FAILED 4451b866434SDaniel Borkmann * 4461b866434SDaniel Borkmann * If SCTP cannot deliver a message it may return the message as a 4471b866434SDaniel Borkmann * notification. 4481b866434SDaniel Borkmann */ 4491b866434SDaniel Borkmann struct sctp_send_failed { 4501b866434SDaniel Borkmann __u16 ssf_type; 4511b866434SDaniel Borkmann __u16 ssf_flags; 4521b866434SDaniel Borkmann __u32 ssf_length; 4531b866434SDaniel Borkmann __u32 ssf_error; 4541b866434SDaniel Borkmann struct sctp_sndrcvinfo ssf_info; 4551b866434SDaniel Borkmann sctp_assoc_t ssf_assoc_id; 45694dfc73eSGustavo A. R. Silva __u8 ssf_data[]; 4571b866434SDaniel Borkmann }; 4581b866434SDaniel Borkmann 459b6e6b5f1SXin Long struct sctp_send_failed_event { 460b6e6b5f1SXin Long __u16 ssf_type; 461b6e6b5f1SXin Long __u16 ssf_flags; 462b6e6b5f1SXin Long __u32 ssf_length; 463b6e6b5f1SXin Long __u32 ssf_error; 464b6e6b5f1SXin Long struct sctp_sndinfo ssfe_info; 465b6e6b5f1SXin Long sctp_assoc_t ssf_assoc_id; 46694dfc73eSGustavo A. R. Silva __u8 ssf_data[]; 467b6e6b5f1SXin Long }; 468b6e6b5f1SXin Long 4691b866434SDaniel Borkmann /* 4701b866434SDaniel Borkmann * ssf_flags: 16 bits (unsigned integer) 4711b866434SDaniel Borkmann * 4721b866434SDaniel Borkmann * The flag value will take one of the following values 4731b866434SDaniel Borkmann * 4741b866434SDaniel Borkmann * SCTP_DATA_UNSENT - Indicates that the data was never put on 4751b866434SDaniel Borkmann * the wire. 4761b866434SDaniel Borkmann * 4771b866434SDaniel Borkmann * SCTP_DATA_SENT - Indicates that the data was put on the wire. 4781b866434SDaniel Borkmann * Note that this does not necessarily mean that the 4791b866434SDaniel Borkmann * data was (or was not) successfully delivered. 4801b866434SDaniel Borkmann */ 4811b866434SDaniel Borkmann enum sctp_ssf_flags { 4821b866434SDaniel Borkmann SCTP_DATA_UNSENT, 4831b866434SDaniel Borkmann SCTP_DATA_SENT, 4841b866434SDaniel Borkmann }; 4851b866434SDaniel Borkmann 4861b866434SDaniel Borkmann /* 4871b866434SDaniel Borkmann * 5.3.1.5 SCTP_SHUTDOWN_EVENT 4881b866434SDaniel Borkmann * 4891b866434SDaniel Borkmann * When a peer sends a SHUTDOWN, SCTP delivers this notification to 4901b866434SDaniel Borkmann * inform the application that it should cease sending data. 4911b866434SDaniel Borkmann */ 4921b866434SDaniel Borkmann struct sctp_shutdown_event { 4931b866434SDaniel Borkmann __u16 sse_type; 4941b866434SDaniel Borkmann __u16 sse_flags; 4951b866434SDaniel Borkmann __u32 sse_length; 4961b866434SDaniel Borkmann sctp_assoc_t sse_assoc_id; 4971b866434SDaniel Borkmann }; 4981b866434SDaniel Borkmann 4991b866434SDaniel Borkmann /* 5001b866434SDaniel Borkmann * 5.3.1.6 SCTP_ADAPTATION_INDICATION 5011b866434SDaniel Borkmann * 5021b866434SDaniel Borkmann * When a peer sends a Adaptation Layer Indication parameter , SCTP 5031b866434SDaniel Borkmann * delivers this notification to inform the application 5041b866434SDaniel Borkmann * that of the peers requested adaptation layer. 5051b866434SDaniel Borkmann */ 5061b866434SDaniel Borkmann struct sctp_adaptation_event { 5071b866434SDaniel Borkmann __u16 sai_type; 5081b866434SDaniel Borkmann __u16 sai_flags; 5091b866434SDaniel Borkmann __u32 sai_length; 5101b866434SDaniel Borkmann __u32 sai_adaptation_ind; 5111b866434SDaniel Borkmann sctp_assoc_t sai_assoc_id; 5121b866434SDaniel Borkmann }; 5131b866434SDaniel Borkmann 5141b866434SDaniel Borkmann /* 5151b866434SDaniel Borkmann * 5.3.1.7 SCTP_PARTIAL_DELIVERY_EVENT 5161b866434SDaniel Borkmann * 5171b866434SDaniel Borkmann * When a receiver is engaged in a partial delivery of a 5181b866434SDaniel Borkmann * message this notification will be used to indicate 5191b866434SDaniel Borkmann * various events. 5201b866434SDaniel Borkmann */ 5211b866434SDaniel Borkmann struct sctp_pdapi_event { 5221b866434SDaniel Borkmann __u16 pdapi_type; 5231b866434SDaniel Borkmann __u16 pdapi_flags; 5241b866434SDaniel Borkmann __u32 pdapi_length; 5251b866434SDaniel Borkmann __u32 pdapi_indication; 5261b866434SDaniel Borkmann sctp_assoc_t pdapi_assoc_id; 52765f5e357SXin Long __u32 pdapi_stream; 52865f5e357SXin Long __u32 pdapi_seq; 5291b866434SDaniel Borkmann }; 5301b866434SDaniel Borkmann 5311b866434SDaniel Borkmann enum { SCTP_PARTIAL_DELIVERY_ABORTED=0, }; 5321b866434SDaniel Borkmann 5331b866434SDaniel Borkmann /* 5341b866434SDaniel Borkmann * 5.3.1.8. SCTP_AUTHENTICATION_EVENT 5351b866434SDaniel Borkmann * 5361b866434SDaniel Borkmann * When a receiver is using authentication this message will provide 5371b866434SDaniel Borkmann * notifications regarding new keys being made active as well as errors. 5381b866434SDaniel Borkmann */ 5391b866434SDaniel Borkmann struct sctp_authkey_event { 5401b866434SDaniel Borkmann __u16 auth_type; 5411b866434SDaniel Borkmann __u16 auth_flags; 5421b866434SDaniel Borkmann __u32 auth_length; 5431b866434SDaniel Borkmann __u16 auth_keynumber; 5441b866434SDaniel Borkmann __u16 auth_altkeynumber; 5451b866434SDaniel Borkmann __u32 auth_indication; 5461b866434SDaniel Borkmann sctp_assoc_t auth_assoc_id; 5471b866434SDaniel Borkmann }; 5481b866434SDaniel Borkmann 549ec2e506cSXin Long enum { 550ec2e506cSXin Long SCTP_AUTH_NEW_KEY, 551ec2e506cSXin Long #define SCTP_AUTH_NEWKEY SCTP_AUTH_NEW_KEY /* compatible with before */ 552ec2e506cSXin Long SCTP_AUTH_FREE_KEY, 55330f6ebf6SXin Long SCTP_AUTH_NO_AUTH, 554ec2e506cSXin Long }; 5551b866434SDaniel Borkmann 5561b866434SDaniel Borkmann /* 5571b866434SDaniel Borkmann * 6.1.9. SCTP_SENDER_DRY_EVENT 5581b866434SDaniel Borkmann * 5591b866434SDaniel Borkmann * When the SCTP stack has no more user data to send or retransmit, this 5601b866434SDaniel Borkmann * notification is given to the user. Also, at the time when a user app 5611b866434SDaniel Borkmann * subscribes to this event, if there is no data to be sent or 5621b866434SDaniel Borkmann * retransmit, the stack will immediately send up this notification. 5631b866434SDaniel Borkmann */ 5641b866434SDaniel Borkmann struct sctp_sender_dry_event { 5651b866434SDaniel Borkmann __u16 sender_dry_type; 5661b866434SDaniel Borkmann __u16 sender_dry_flags; 5671b866434SDaniel Borkmann __u32 sender_dry_length; 5681b866434SDaniel Borkmann sctp_assoc_t sender_dry_assoc_id; 5691b866434SDaniel Borkmann }; 5701b866434SDaniel Borkmann 57135ea82d6SXin Long #define SCTP_STREAM_RESET_INCOMING_SSN 0x0001 57235ea82d6SXin Long #define SCTP_STREAM_RESET_OUTGOING_SSN 0x0002 57335ea82d6SXin Long #define SCTP_STREAM_RESET_DENIED 0x0004 57435ea82d6SXin Long #define SCTP_STREAM_RESET_FAILED 0x0008 57535ea82d6SXin Long struct sctp_stream_reset_event { 57635ea82d6SXin Long __u16 strreset_type; 57735ea82d6SXin Long __u16 strreset_flags; 57835ea82d6SXin Long __u32 strreset_length; 57935ea82d6SXin Long sctp_assoc_t strreset_assoc_id; 58035ea82d6SXin Long __u16 strreset_stream_list[]; 58135ea82d6SXin Long }; 58235ea82d6SXin Long 583c95129d1SXin Long #define SCTP_ASSOC_RESET_DENIED 0x0004 584c95129d1SXin Long #define SCTP_ASSOC_RESET_FAILED 0x0008 585c95129d1SXin Long struct sctp_assoc_reset_event { 586c95129d1SXin Long __u16 assocreset_type; 587c95129d1SXin Long __u16 assocreset_flags; 588c95129d1SXin Long __u32 assocreset_length; 589c95129d1SXin Long sctp_assoc_t assocreset_assoc_id; 590c95129d1SXin Long __u32 assocreset_local_tsn; 591c95129d1SXin Long __u32 assocreset_remote_tsn; 592c95129d1SXin Long }; 593c95129d1SXin Long 594b444153fSXin Long #define SCTP_ASSOC_CHANGE_DENIED 0x0004 595b444153fSXin Long #define SCTP_ASSOC_CHANGE_FAILED 0x0008 596fd82d61bSXin Long #define SCTP_STREAM_CHANGE_DENIED SCTP_ASSOC_CHANGE_DENIED 597fd82d61bSXin Long #define SCTP_STREAM_CHANGE_FAILED SCTP_ASSOC_CHANGE_FAILED 598b444153fSXin Long struct sctp_stream_change_event { 599b444153fSXin Long __u16 strchange_type; 600b444153fSXin Long __u16 strchange_flags; 601b444153fSXin Long __u32 strchange_length; 602b444153fSXin Long sctp_assoc_t strchange_assoc_id; 603b444153fSXin Long __u16 strchange_instrms; 604b444153fSXin Long __u16 strchange_outstrms; 605b444153fSXin Long }; 606b444153fSXin Long 6071b866434SDaniel Borkmann /* 6081b866434SDaniel Borkmann * Described in Section 7.3 6091b866434SDaniel Borkmann * Ancillary Data and Notification Interest Options 6101b866434SDaniel Borkmann */ 6111b866434SDaniel Borkmann struct sctp_event_subscribe { 6121b866434SDaniel Borkmann __u8 sctp_data_io_event; 6131b866434SDaniel Borkmann __u8 sctp_association_event; 6141b866434SDaniel Borkmann __u8 sctp_address_event; 6151b866434SDaniel Borkmann __u8 sctp_send_failure_event; 6161b866434SDaniel Borkmann __u8 sctp_peer_error_event; 6171b866434SDaniel Borkmann __u8 sctp_shutdown_event; 6181b866434SDaniel Borkmann __u8 sctp_partial_delivery_event; 6191b866434SDaniel Borkmann __u8 sctp_adaptation_layer_event; 6201b866434SDaniel Borkmann __u8 sctp_authentication_event; 6211b866434SDaniel Borkmann __u8 sctp_sender_dry_event; 62235ea82d6SXin Long __u8 sctp_stream_reset_event; 623c95129d1SXin Long __u8 sctp_assoc_reset_event; 624b444153fSXin Long __u8 sctp_stream_change_event; 625b6e6b5f1SXin Long __u8 sctp_send_failure_event_event; 6261b866434SDaniel Borkmann }; 6271b866434SDaniel Borkmann 6281b866434SDaniel Borkmann /* 6291b866434SDaniel Borkmann * 5.3.1 SCTP Notification Structure 6301b866434SDaniel Borkmann * 6311b866434SDaniel Borkmann * The notification structure is defined as the union of all 6321b866434SDaniel Borkmann * notification types. 6331b866434SDaniel Borkmann * 6341b866434SDaniel Borkmann */ 6351b866434SDaniel Borkmann union sctp_notification { 6361b866434SDaniel Borkmann struct { 6371b866434SDaniel Borkmann __u16 sn_type; /* Notification type. */ 6381b866434SDaniel Borkmann __u16 sn_flags; 6391b866434SDaniel Borkmann __u32 sn_length; 6401b866434SDaniel Borkmann } sn_header; 6411b866434SDaniel Borkmann struct sctp_assoc_change sn_assoc_change; 6421b866434SDaniel Borkmann struct sctp_paddr_change sn_paddr_change; 6431b866434SDaniel Borkmann struct sctp_remote_error sn_remote_error; 6441b866434SDaniel Borkmann struct sctp_send_failed sn_send_failed; 6451b866434SDaniel Borkmann struct sctp_shutdown_event sn_shutdown_event; 6461b866434SDaniel Borkmann struct sctp_adaptation_event sn_adaptation_event; 6471b866434SDaniel Borkmann struct sctp_pdapi_event sn_pdapi_event; 6481b866434SDaniel Borkmann struct sctp_authkey_event sn_authkey_event; 6491b866434SDaniel Borkmann struct sctp_sender_dry_event sn_sender_dry_event; 65035ea82d6SXin Long struct sctp_stream_reset_event sn_strreset_event; 651c95129d1SXin Long struct sctp_assoc_reset_event sn_assocreset_event; 652b444153fSXin Long struct sctp_stream_change_event sn_strchange_event; 653b6e6b5f1SXin Long struct sctp_send_failed_event sn_send_failed_event; 6541b866434SDaniel Borkmann }; 6551b866434SDaniel Borkmann 6561b866434SDaniel Borkmann /* Section 5.3.1 6571b866434SDaniel Borkmann * All standard values for sn_type flags are greater than 2^15. 6581b866434SDaniel Borkmann * Values from 2^15 and down are reserved. 6591b866434SDaniel Borkmann */ 6601b866434SDaniel Borkmann 6611b866434SDaniel Borkmann enum sctp_sn_type { 6621b866434SDaniel Borkmann SCTP_SN_TYPE_BASE = (1<<15), 6632cc0eeb6SXin Long SCTP_DATA_IO_EVENT = SCTP_SN_TYPE_BASE, 6642cc0eeb6SXin Long #define SCTP_DATA_IO_EVENT SCTP_DATA_IO_EVENT 6651b866434SDaniel Borkmann SCTP_ASSOC_CHANGE, 6661b866434SDaniel Borkmann #define SCTP_ASSOC_CHANGE SCTP_ASSOC_CHANGE 6671b866434SDaniel Borkmann SCTP_PEER_ADDR_CHANGE, 6681b866434SDaniel Borkmann #define SCTP_PEER_ADDR_CHANGE SCTP_PEER_ADDR_CHANGE 6691b866434SDaniel Borkmann SCTP_SEND_FAILED, 6701b866434SDaniel Borkmann #define SCTP_SEND_FAILED SCTP_SEND_FAILED 6711b866434SDaniel Borkmann SCTP_REMOTE_ERROR, 6721b866434SDaniel Borkmann #define SCTP_REMOTE_ERROR SCTP_REMOTE_ERROR 6731b866434SDaniel Borkmann SCTP_SHUTDOWN_EVENT, 6741b866434SDaniel Borkmann #define SCTP_SHUTDOWN_EVENT SCTP_SHUTDOWN_EVENT 6751b866434SDaniel Borkmann SCTP_PARTIAL_DELIVERY_EVENT, 6761b866434SDaniel Borkmann #define SCTP_PARTIAL_DELIVERY_EVENT SCTP_PARTIAL_DELIVERY_EVENT 6771b866434SDaniel Borkmann SCTP_ADAPTATION_INDICATION, 6781b866434SDaniel Borkmann #define SCTP_ADAPTATION_INDICATION SCTP_ADAPTATION_INDICATION 6791b866434SDaniel Borkmann SCTP_AUTHENTICATION_EVENT, 6801b866434SDaniel Borkmann #define SCTP_AUTHENTICATION_INDICATION SCTP_AUTHENTICATION_EVENT 6811b866434SDaniel Borkmann SCTP_SENDER_DRY_EVENT, 6821b866434SDaniel Borkmann #define SCTP_SENDER_DRY_EVENT SCTP_SENDER_DRY_EVENT 68335ea82d6SXin Long SCTP_STREAM_RESET_EVENT, 68435ea82d6SXin Long #define SCTP_STREAM_RESET_EVENT SCTP_STREAM_RESET_EVENT 685c95129d1SXin Long SCTP_ASSOC_RESET_EVENT, 686c95129d1SXin Long #define SCTP_ASSOC_RESET_EVENT SCTP_ASSOC_RESET_EVENT 687b444153fSXin Long SCTP_STREAM_CHANGE_EVENT, 688b444153fSXin Long #define SCTP_STREAM_CHANGE_EVENT SCTP_STREAM_CHANGE_EVENT 689b6e6b5f1SXin Long SCTP_SEND_FAILED_EVENT, 690b6e6b5f1SXin Long #define SCTP_SEND_FAILED_EVENT SCTP_SEND_FAILED_EVENT 691b6e6b5f1SXin Long SCTP_SN_TYPE_MAX = SCTP_SEND_FAILED_EVENT, 6922cc0eeb6SXin Long #define SCTP_SN_TYPE_MAX SCTP_SN_TYPE_MAX 6931b866434SDaniel Borkmann }; 6941b866434SDaniel Borkmann 6951b866434SDaniel Borkmann /* Notification error codes used to fill up the error fields in some 6961b866434SDaniel Borkmann * notifications. 6971b866434SDaniel Borkmann * SCTP_PEER_ADDRESS_CHAGE : spc_error 6981b866434SDaniel Borkmann * SCTP_ASSOC_CHANGE : sac_error 6991b866434SDaniel Borkmann * These names should be potentially included in the draft 04 of the SCTP 7001b866434SDaniel Borkmann * sockets API specification. 7011b866434SDaniel Borkmann */ 7021b866434SDaniel Borkmann typedef enum sctp_sn_error { 7031b866434SDaniel Borkmann SCTP_FAILED_THRESHOLD, 7041b866434SDaniel Borkmann SCTP_RECEIVED_SACK, 7051b866434SDaniel Borkmann SCTP_HEARTBEAT_SUCCESS, 7061b866434SDaniel Borkmann SCTP_RESPONSE_TO_USER_REQ, 7071b866434SDaniel Borkmann SCTP_INTERNAL_ERROR, 7081b866434SDaniel Borkmann SCTP_SHUTDOWN_GUARD_EXPIRES, 7091b866434SDaniel Borkmann SCTP_PEER_FAULTY, 7101b866434SDaniel Borkmann } sctp_sn_error_t; 7111b866434SDaniel Borkmann 7121b866434SDaniel Borkmann /* 7131b866434SDaniel Borkmann * 7.1.1 Retransmission Timeout Parameters (SCTP_RTOINFO) 7141b866434SDaniel Borkmann * 7151b866434SDaniel Borkmann * The protocol parameters used to initialize and bound retransmission 7161b866434SDaniel Borkmann * timeout (RTO) are tunable. See [SCTP] for more information on how 7171b866434SDaniel Borkmann * these parameters are used in RTO calculation. 7181b866434SDaniel Borkmann */ 7191b866434SDaniel Borkmann struct sctp_rtoinfo { 7201b866434SDaniel Borkmann sctp_assoc_t srto_assoc_id; 7211b866434SDaniel Borkmann __u32 srto_initial; 7221b866434SDaniel Borkmann __u32 srto_max; 7231b866434SDaniel Borkmann __u32 srto_min; 7241b866434SDaniel Borkmann }; 7251b866434SDaniel Borkmann 7261b866434SDaniel Borkmann /* 7271b866434SDaniel Borkmann * 7.1.2 Association Parameters (SCTP_ASSOCINFO) 7281b866434SDaniel Borkmann * 7291b866434SDaniel Borkmann * This option is used to both examine and set various association and 7301b866434SDaniel Borkmann * endpoint parameters. 7311b866434SDaniel Borkmann */ 7321b866434SDaniel Borkmann struct sctp_assocparams { 7331b866434SDaniel Borkmann sctp_assoc_t sasoc_assoc_id; 7341b866434SDaniel Borkmann __u16 sasoc_asocmaxrxt; 7351b866434SDaniel Borkmann __u16 sasoc_number_peer_destinations; 7361b866434SDaniel Borkmann __u32 sasoc_peer_rwnd; 7371b866434SDaniel Borkmann __u32 sasoc_local_rwnd; 7381b866434SDaniel Borkmann __u32 sasoc_cookie_life; 7391b866434SDaniel Borkmann }; 7401b866434SDaniel Borkmann 7411b866434SDaniel Borkmann /* 7421b866434SDaniel Borkmann * 7.1.9 Set Peer Primary Address (SCTP_SET_PEER_PRIMARY_ADDR) 7431b866434SDaniel Borkmann * 7441b866434SDaniel Borkmann * Requests that the peer mark the enclosed address as the association 7451b866434SDaniel Borkmann * primary. The enclosed address must be one of the association's 7461b866434SDaniel Borkmann * locally bound addresses. The following structure is used to make a 7471b866434SDaniel Borkmann * set primary request: 7481b866434SDaniel Borkmann */ 7491b866434SDaniel Borkmann struct sctp_setpeerprim { 7501b866434SDaniel Borkmann sctp_assoc_t sspp_assoc_id; 7511b866434SDaniel Borkmann struct sockaddr_storage sspp_addr; 7521b866434SDaniel Borkmann } __attribute__((packed, aligned(4))); 7531b866434SDaniel Borkmann 7541b866434SDaniel Borkmann /* 7551b866434SDaniel Borkmann * 7.1.10 Set Primary Address (SCTP_PRIMARY_ADDR) 7561b866434SDaniel Borkmann * 7571b866434SDaniel Borkmann * Requests that the local SCTP stack use the enclosed peer address as 7581b866434SDaniel Borkmann * the association primary. The enclosed address must be one of the 7591b866434SDaniel Borkmann * association peer's addresses. The following structure is used to 7601b866434SDaniel Borkmann * make a set peer primary request: 7611b866434SDaniel Borkmann */ 7621b866434SDaniel Borkmann struct sctp_prim { 7631b866434SDaniel Borkmann sctp_assoc_t ssp_assoc_id; 7641b866434SDaniel Borkmann struct sockaddr_storage ssp_addr; 7651b866434SDaniel Borkmann } __attribute__((packed, aligned(4))); 7661b866434SDaniel Borkmann 7671b866434SDaniel Borkmann /* For backward compatibility use, define the old name too */ 7681b866434SDaniel Borkmann #define sctp_setprim sctp_prim 7691b866434SDaniel Borkmann 7701b866434SDaniel Borkmann /* 7711b866434SDaniel Borkmann * 7.1.11 Set Adaptation Layer Indicator (SCTP_ADAPTATION_LAYER) 7721b866434SDaniel Borkmann * 7731b866434SDaniel Borkmann * Requests that the local endpoint set the specified Adaptation Layer 7741b866434SDaniel Borkmann * Indication parameter for all future INIT and INIT-ACK exchanges. 7751b866434SDaniel Borkmann */ 7761b866434SDaniel Borkmann struct sctp_setadaptation { 7771b866434SDaniel Borkmann __u32 ssb_adaptation_ind; 7781b866434SDaniel Borkmann }; 7791b866434SDaniel Borkmann 7801b866434SDaniel Borkmann /* 7811b866434SDaniel Borkmann * 7.1.13 Peer Address Parameters (SCTP_PEER_ADDR_PARAMS) 7821b866434SDaniel Borkmann * 7831b866434SDaniel Borkmann * Applications can enable or disable heartbeats for any peer address 7841b866434SDaniel Borkmann * of an association, modify an address's heartbeat interval, force a 7851b866434SDaniel Borkmann * heartbeat to be sent immediately, and adjust the address's maximum 7861b866434SDaniel Borkmann * number of retransmissions sent before an address is considered 7871b866434SDaniel Borkmann * unreachable. The following structure is used to access and modify an 7881b866434SDaniel Borkmann * address's parameters: 7891b866434SDaniel Borkmann */ 7901b866434SDaniel Borkmann enum sctp_spp_flags { 7911b866434SDaniel Borkmann SPP_HB_ENABLE = 1<<0, /*Enable heartbeats*/ 7921b866434SDaniel Borkmann SPP_HB_DISABLE = 1<<1, /*Disable heartbeats*/ 7931b866434SDaniel Borkmann SPP_HB = SPP_HB_ENABLE | SPP_HB_DISABLE, 7941b866434SDaniel Borkmann SPP_HB_DEMAND = 1<<2, /*Send heartbeat immediately*/ 7951b866434SDaniel Borkmann SPP_PMTUD_ENABLE = 1<<3, /*Enable PMTU discovery*/ 7961b866434SDaniel Borkmann SPP_PMTUD_DISABLE = 1<<4, /*Disable PMTU discovery*/ 7971b866434SDaniel Borkmann SPP_PMTUD = SPP_PMTUD_ENABLE | SPP_PMTUD_DISABLE, 7981b866434SDaniel Borkmann SPP_SACKDELAY_ENABLE = 1<<5, /*Enable SACK*/ 7991b866434SDaniel Borkmann SPP_SACKDELAY_DISABLE = 1<<6, /*Disable SACK*/ 8001b866434SDaniel Borkmann SPP_SACKDELAY = SPP_SACKDELAY_ENABLE | SPP_SACKDELAY_DISABLE, 8011b866434SDaniel Borkmann SPP_HB_TIME_IS_ZERO = 1<<7, /* Set HB delay to 0 */ 8020b0dce7aSXin Long SPP_IPV6_FLOWLABEL = 1<<8, 8030b0dce7aSXin Long SPP_DSCP = 1<<9, 8041b866434SDaniel Borkmann }; 8051b866434SDaniel Borkmann 8061b866434SDaniel Borkmann struct sctp_paddrparams { 8071b866434SDaniel Borkmann sctp_assoc_t spp_assoc_id; 8081b866434SDaniel Borkmann struct sockaddr_storage spp_address; 8091b866434SDaniel Borkmann __u32 spp_hbinterval; 8101b866434SDaniel Borkmann __u16 spp_pathmaxrxt; 8111b866434SDaniel Borkmann __u32 spp_pathmtu; 8121b866434SDaniel Borkmann __u32 spp_sackdelay; 8131b866434SDaniel Borkmann __u32 spp_flags; 8140b0dce7aSXin Long __u32 spp_ipv6_flowlabel; 8150b0dce7aSXin Long __u8 spp_dscp; 8161b866434SDaniel Borkmann } __attribute__((packed, aligned(4))); 8171b866434SDaniel Borkmann 8181b866434SDaniel Borkmann /* 8191b866434SDaniel Borkmann * 7.1.18. Add a chunk that must be authenticated (SCTP_AUTH_CHUNK) 8201b866434SDaniel Borkmann * 8211b866434SDaniel Borkmann * This set option adds a chunk type that the user is requesting to be 8221b866434SDaniel Borkmann * received only in an authenticated way. Changes to the list of chunks 8231b866434SDaniel Borkmann * will only effect future associations on the socket. 8241b866434SDaniel Borkmann */ 8251b866434SDaniel Borkmann struct sctp_authchunk { 8261b866434SDaniel Borkmann __u8 sauth_chunk; 8271b866434SDaniel Borkmann }; 8281b866434SDaniel Borkmann 8291b866434SDaniel Borkmann /* 8301b866434SDaniel Borkmann * 7.1.19. Get or set the list of supported HMAC Identifiers (SCTP_HMAC_IDENT) 8311b866434SDaniel Borkmann * 8321b866434SDaniel Borkmann * This option gets or sets the list of HMAC algorithms that the local 8331b866434SDaniel Borkmann * endpoint requires the peer to use. 8341b866434SDaniel Borkmann */ 8351b866434SDaniel Borkmann #ifndef __KERNEL__ 8361b866434SDaniel Borkmann /* This here is only used by user space as is. It might not be a good idea 8371b866434SDaniel Borkmann * to export/reveal the whole structure with reserved fields etc. 8381b866434SDaniel Borkmann */ 8391b866434SDaniel Borkmann enum { 8401b866434SDaniel Borkmann SCTP_AUTH_HMAC_ID_SHA1 = 1, 8411b866434SDaniel Borkmann SCTP_AUTH_HMAC_ID_SHA256 = 3, 8421b866434SDaniel Borkmann }; 8431b866434SDaniel Borkmann #endif 8441b866434SDaniel Borkmann 8451b866434SDaniel Borkmann struct sctp_hmacalgo { 8461b866434SDaniel Borkmann __u32 shmac_num_idents; 8471b866434SDaniel Borkmann __u16 shmac_idents[]; 8481b866434SDaniel Borkmann }; 8491b866434SDaniel Borkmann 8501b866434SDaniel Borkmann /* Sadly, user and kernel space have different names for 8511b866434SDaniel Borkmann * this structure member, so this is to not break anything. 8521b866434SDaniel Borkmann */ 8531b866434SDaniel Borkmann #define shmac_number_of_idents shmac_num_idents 8541b866434SDaniel Borkmann 8551b866434SDaniel Borkmann /* 8561b866434SDaniel Borkmann * 7.1.20. Set a shared key (SCTP_AUTH_KEY) 8571b866434SDaniel Borkmann * 8581b866434SDaniel Borkmann * This option will set a shared secret key which is used to build an 8591b866434SDaniel Borkmann * association shared key. 8601b866434SDaniel Borkmann */ 8611b866434SDaniel Borkmann struct sctp_authkey { 8621b866434SDaniel Borkmann sctp_assoc_t sca_assoc_id; 8631b866434SDaniel Borkmann __u16 sca_keynumber; 8641b866434SDaniel Borkmann __u16 sca_keylength; 8651b866434SDaniel Borkmann __u8 sca_key[]; 8661b866434SDaniel Borkmann }; 8671b866434SDaniel Borkmann 8681b866434SDaniel Borkmann /* 8691b866434SDaniel Borkmann * 7.1.21. Get or set the active shared key (SCTP_AUTH_ACTIVE_KEY) 8701b866434SDaniel Borkmann * 8711b866434SDaniel Borkmann * This option will get or set the active shared key to be used to build 8721b866434SDaniel Borkmann * the association shared key. 8731b866434SDaniel Borkmann */ 8741b866434SDaniel Borkmann 8751b866434SDaniel Borkmann struct sctp_authkeyid { 8761b866434SDaniel Borkmann sctp_assoc_t scact_assoc_id; 8771b866434SDaniel Borkmann __u16 scact_keynumber; 8781b866434SDaniel Borkmann }; 8791b866434SDaniel Borkmann 8801b866434SDaniel Borkmann 8811b866434SDaniel Borkmann /* 8821b866434SDaniel Borkmann * 7.1.23. Get or set delayed ack timer (SCTP_DELAYED_SACK) 8831b866434SDaniel Borkmann * 8841b866434SDaniel Borkmann * This option will effect the way delayed acks are performed. This 8851b866434SDaniel Borkmann * option allows you to get or set the delayed ack time, in 8861b866434SDaniel Borkmann * milliseconds. It also allows changing the delayed ack frequency. 8871b866434SDaniel Borkmann * Changing the frequency to 1 disables the delayed sack algorithm. If 8881b866434SDaniel Borkmann * the assoc_id is 0, then this sets or gets the endpoints default 8891b866434SDaniel Borkmann * values. If the assoc_id field is non-zero, then the set or get 8901b866434SDaniel Borkmann * effects the specified association for the one to many model (the 8911b866434SDaniel Borkmann * assoc_id field is ignored by the one to one model). Note that if 8921b866434SDaniel Borkmann * sack_delay or sack_freq are 0 when setting this option, then the 8931b866434SDaniel Borkmann * current values will remain unchanged. 8941b866434SDaniel Borkmann */ 8951b866434SDaniel Borkmann struct sctp_sack_info { 8961b866434SDaniel Borkmann sctp_assoc_t sack_assoc_id; 8971b866434SDaniel Borkmann uint32_t sack_delay; 8981b866434SDaniel Borkmann uint32_t sack_freq; 8991b866434SDaniel Borkmann }; 9001b866434SDaniel Borkmann 9011b866434SDaniel Borkmann struct sctp_assoc_value { 9021b866434SDaniel Borkmann sctp_assoc_t assoc_id; 9031b866434SDaniel Borkmann uint32_t assoc_value; 9041b866434SDaniel Borkmann }; 9051b866434SDaniel Borkmann 9060ccdf3c7SMarcelo Ricardo Leitner struct sctp_stream_value { 9070ccdf3c7SMarcelo Ricardo Leitner sctp_assoc_t assoc_id; 9080ccdf3c7SMarcelo Ricardo Leitner uint16_t stream_id; 9090ccdf3c7SMarcelo Ricardo Leitner uint16_t stream_value; 9100ccdf3c7SMarcelo Ricardo Leitner }; 9110ccdf3c7SMarcelo Ricardo Leitner 9121b866434SDaniel Borkmann /* 9131b866434SDaniel Borkmann * 7.2.2 Peer Address Information 9141b866434SDaniel Borkmann * 9151b866434SDaniel Borkmann * Applications can retrieve information about a specific peer address 9161b866434SDaniel Borkmann * of an association, including its reachability state, congestion 9171b866434SDaniel Borkmann * window, and retransmission timer values. This information is 9181b866434SDaniel Borkmann * read-only. The following structure is used to access this 9191b866434SDaniel Borkmann * information: 9201b866434SDaniel Borkmann */ 9211b866434SDaniel Borkmann struct sctp_paddrinfo { 9221b866434SDaniel Borkmann sctp_assoc_t spinfo_assoc_id; 9231b866434SDaniel Borkmann struct sockaddr_storage spinfo_address; 9241b866434SDaniel Borkmann __s32 spinfo_state; 9251b866434SDaniel Borkmann __u32 spinfo_cwnd; 9261b866434SDaniel Borkmann __u32 spinfo_srtt; 9271b866434SDaniel Borkmann __u32 spinfo_rto; 9281b866434SDaniel Borkmann __u32 spinfo_mtu; 9291b866434SDaniel Borkmann } __attribute__((packed, aligned(4))); 9301b866434SDaniel Borkmann 9311b866434SDaniel Borkmann /* Peer addresses's state. */ 9321b866434SDaniel Borkmann /* UNKNOWN: Peer address passed by the upper layer in sendmsg or connect[x] 9331b866434SDaniel Borkmann * calls. 9341b866434SDaniel Borkmann * UNCONFIRMED: Peer address received in INIT/INIT-ACK address parameters. 9351b866434SDaniel Borkmann * Not yet confirmed by a heartbeat and not available for data 9361b866434SDaniel Borkmann * transfers. 9371b866434SDaniel Borkmann * ACTIVE : Peer address confirmed, active and available for data transfers. 9381b866434SDaniel Borkmann * INACTIVE: Peer address inactive and not available for data transfers. 9391b866434SDaniel Borkmann */ 9401b866434SDaniel Borkmann enum sctp_spinfo_state { 9411b866434SDaniel Borkmann SCTP_INACTIVE, 9421b866434SDaniel Borkmann SCTP_PF, 943aef587beSXin Long #define SCTP_POTENTIALLY_FAILED SCTP_PF 9441b866434SDaniel Borkmann SCTP_ACTIVE, 9451b866434SDaniel Borkmann SCTP_UNCONFIRMED, 9461b866434SDaniel Borkmann SCTP_UNKNOWN = 0xffff /* Value used for transport state unknown */ 9471b866434SDaniel Borkmann }; 9481b866434SDaniel Borkmann 9491b866434SDaniel Borkmann /* 9501b866434SDaniel Borkmann * 7.2.1 Association Status (SCTP_STATUS) 9511b866434SDaniel Borkmann * 9521b866434SDaniel Borkmann * Applications can retrieve current status information about an 9531b866434SDaniel Borkmann * association, including association state, peer receiver window size, 9541b866434SDaniel Borkmann * number of unacked data chunks, and number of data chunks pending 9551b866434SDaniel Borkmann * receipt. This information is read-only. The following structure is 9561b866434SDaniel Borkmann * used to access this information: 9571b866434SDaniel Borkmann */ 9581b866434SDaniel Borkmann struct sctp_status { 9591b866434SDaniel Borkmann sctp_assoc_t sstat_assoc_id; 9601b866434SDaniel Borkmann __s32 sstat_state; 9611b866434SDaniel Borkmann __u32 sstat_rwnd; 9621b866434SDaniel Borkmann __u16 sstat_unackdata; 9631b866434SDaniel Borkmann __u16 sstat_penddata; 9641b866434SDaniel Borkmann __u16 sstat_instrms; 9651b866434SDaniel Borkmann __u16 sstat_outstrms; 9661b866434SDaniel Borkmann __u32 sstat_fragmentation_point; 9671b866434SDaniel Borkmann struct sctp_paddrinfo sstat_primary; 9681b866434SDaniel Borkmann }; 9691b866434SDaniel Borkmann 9701b866434SDaniel Borkmann /* 9711b866434SDaniel Borkmann * 7.2.3. Get the list of chunks the peer requires to be authenticated 9721b866434SDaniel Borkmann * (SCTP_PEER_AUTH_CHUNKS) 9731b866434SDaniel Borkmann * 9741b866434SDaniel Borkmann * This option gets a list of chunks for a specified association that 9751b866434SDaniel Borkmann * the peer requires to be received authenticated only. 9761b866434SDaniel Borkmann */ 9771b866434SDaniel Borkmann struct sctp_authchunks { 9781b866434SDaniel Borkmann sctp_assoc_t gauth_assoc_id; 9791b866434SDaniel Borkmann __u32 gauth_number_of_chunks; 9801b866434SDaniel Borkmann uint8_t gauth_chunks[]; 9811b866434SDaniel Borkmann }; 9821b866434SDaniel Borkmann 9831b866434SDaniel Borkmann /* The broken spelling has been released already in lksctp-tools header, 9841b866434SDaniel Borkmann * so don't break anyone, now that it's fixed. 9851b866434SDaniel Borkmann */ 9861b866434SDaniel Borkmann #define guth_number_of_chunks gauth_number_of_chunks 9871b866434SDaniel Borkmann 9881b866434SDaniel Borkmann /* Association states. */ 9891b866434SDaniel Borkmann enum sctp_sstat_state { 9901b866434SDaniel Borkmann SCTP_EMPTY = 0, 9911b866434SDaniel Borkmann SCTP_CLOSED = 1, 9921b866434SDaniel Borkmann SCTP_COOKIE_WAIT = 2, 9931b866434SDaniel Borkmann SCTP_COOKIE_ECHOED = 3, 9941b866434SDaniel Borkmann SCTP_ESTABLISHED = 4, 9951b866434SDaniel Borkmann SCTP_SHUTDOWN_PENDING = 5, 9961b866434SDaniel Borkmann SCTP_SHUTDOWN_SENT = 6, 9971b866434SDaniel Borkmann SCTP_SHUTDOWN_RECEIVED = 7, 9981b866434SDaniel Borkmann SCTP_SHUTDOWN_ACK_SENT = 8, 9991b866434SDaniel Borkmann }; 10001b866434SDaniel Borkmann 10011b866434SDaniel Borkmann /* 10021b866434SDaniel Borkmann * 8.2.6. Get the Current Identifiers of Associations 10031b866434SDaniel Borkmann * (SCTP_GET_ASSOC_ID_LIST) 10041b866434SDaniel Borkmann * 10051b866434SDaniel Borkmann * This option gets the current list of SCTP association identifiers of 10061b866434SDaniel Borkmann * the SCTP associations handled by a one-to-many style socket. 10071b866434SDaniel Borkmann */ 10081b866434SDaniel Borkmann struct sctp_assoc_ids { 10091b866434SDaniel Borkmann __u32 gaids_number_of_ids; 10101b866434SDaniel Borkmann sctp_assoc_t gaids_assoc_id[]; 10111b866434SDaniel Borkmann }; 10121b866434SDaniel Borkmann 10131b866434SDaniel Borkmann /* 10141b866434SDaniel Borkmann * 8.3, 8.5 get all peer/local addresses in an association. 10151b866434SDaniel Borkmann * This parameter struct is used by SCTP_GET_PEER_ADDRS and 10161b866434SDaniel Borkmann * SCTP_GET_LOCAL_ADDRS socket options used internally to implement 10171b866434SDaniel Borkmann * sctp_getpaddrs() and sctp_getladdrs() API. 10181b866434SDaniel Borkmann */ 10191b866434SDaniel Borkmann struct sctp_getaddrs_old { 10201b866434SDaniel Borkmann sctp_assoc_t assoc_id; 10211b866434SDaniel Borkmann int addr_num; 10221b866434SDaniel Borkmann #ifdef __KERNEL__ 10231b866434SDaniel Borkmann struct sockaddr __user *addrs; 10241b866434SDaniel Borkmann #else 10251b866434SDaniel Borkmann struct sockaddr *addrs; 10261b866434SDaniel Borkmann #endif 10271b866434SDaniel Borkmann }; 10281b866434SDaniel Borkmann 10291b866434SDaniel Borkmann struct sctp_getaddrs { 10301b866434SDaniel Borkmann sctp_assoc_t assoc_id; /*input*/ 10311b866434SDaniel Borkmann __u32 addr_num; /*output*/ 103294dfc73eSGustavo A. R. Silva __u8 addrs[]; /*output, variable size*/ 10331b866434SDaniel Borkmann }; 10341b866434SDaniel Borkmann 10351b866434SDaniel Borkmann /* A socket user request obtained via SCTP_GET_ASSOC_STATS that retrieves 10361b866434SDaniel Borkmann * association stats. All stats are counts except sas_maxrto and 10371b866434SDaniel Borkmann * sas_obs_rto_ipaddr. maxrto is the max observed rto + transport since 10381b866434SDaniel Borkmann * the last call. Will return 0 when RTO was not update since last call 10391b866434SDaniel Borkmann */ 10401b866434SDaniel Borkmann struct sctp_assoc_stats { 10411b866434SDaniel Borkmann sctp_assoc_t sas_assoc_id; /* Input */ 10421b866434SDaniel Borkmann /* Transport of observed max RTO */ 10431b866434SDaniel Borkmann struct sockaddr_storage sas_obs_rto_ipaddr; 10441b866434SDaniel Borkmann __u64 sas_maxrto; /* Maximum Observed RTO for period */ 10451b866434SDaniel Borkmann __u64 sas_isacks; /* SACKs received */ 10461b866434SDaniel Borkmann __u64 sas_osacks; /* SACKs sent */ 10471b866434SDaniel Borkmann __u64 sas_opackets; /* Packets sent */ 10481b866434SDaniel Borkmann __u64 sas_ipackets; /* Packets received */ 10491b866434SDaniel Borkmann __u64 sas_rtxchunks; /* Retransmitted Chunks */ 10501b866434SDaniel Borkmann __u64 sas_outofseqtsns;/* TSN received > next expected */ 10511b866434SDaniel Borkmann __u64 sas_idupchunks; /* Dups received (ordered+unordered) */ 10521b866434SDaniel Borkmann __u64 sas_gapcnt; /* Gap Acknowledgements Received */ 10531b866434SDaniel Borkmann __u64 sas_ouodchunks; /* Unordered data chunks sent */ 10541b866434SDaniel Borkmann __u64 sas_iuodchunks; /* Unordered data chunks received */ 10551b866434SDaniel Borkmann __u64 sas_oodchunks; /* Ordered data chunks sent */ 10561b866434SDaniel Borkmann __u64 sas_iodchunks; /* Ordered data chunks received */ 10571b866434SDaniel Borkmann __u64 sas_octrlchunks; /* Control chunks sent */ 10581b866434SDaniel Borkmann __u64 sas_ictrlchunks; /* Control chunks received */ 10591b866434SDaniel Borkmann }; 10601b866434SDaniel Borkmann 10611b866434SDaniel Borkmann /* 10621b866434SDaniel Borkmann * 8.1 sctp_bindx() 10631b866434SDaniel Borkmann * 10641b866434SDaniel Borkmann * The flags parameter is formed from the bitwise OR of zero or more of the 10651b866434SDaniel Borkmann * following currently defined flags: 10661b866434SDaniel Borkmann */ 10671b866434SDaniel Borkmann #define SCTP_BINDX_ADD_ADDR 0x01 10681b866434SDaniel Borkmann #define SCTP_BINDX_REM_ADDR 0x02 10691b866434SDaniel Borkmann 10701b866434SDaniel Borkmann /* This is the structure that is passed as an argument(optval) to 10711b866434SDaniel Borkmann * getsockopt(SCTP_SOCKOPT_PEELOFF). 10721b866434SDaniel Borkmann */ 10731b866434SDaniel Borkmann typedef struct { 10741b866434SDaniel Borkmann sctp_assoc_t associd; 10751b866434SDaniel Borkmann int sd; 10761b866434SDaniel Borkmann } sctp_peeloff_arg_t; 10771b866434SDaniel Borkmann 10782cb5c8e3SNeil Horman typedef struct { 10792cb5c8e3SNeil Horman sctp_peeloff_arg_t p_arg; 10802cb5c8e3SNeil Horman unsigned flags; 10812cb5c8e3SNeil Horman } sctp_peeloff_flags_arg_t; 10822cb5c8e3SNeil Horman 10831b866434SDaniel Borkmann /* 10841b866434SDaniel Borkmann * Peer Address Thresholds socket option 10851b866434SDaniel Borkmann */ 10861b866434SDaniel Borkmann struct sctp_paddrthlds { 10871b866434SDaniel Borkmann sctp_assoc_t spt_assoc_id; 10881b866434SDaniel Borkmann struct sockaddr_storage spt_address; 10891b866434SDaniel Borkmann __u16 spt_pathmaxrxt; 10901b866434SDaniel Borkmann __u16 spt_pathpfthld; 10911b866434SDaniel Borkmann }; 10921b866434SDaniel Borkmann 1093d467ac0aSXin Long /* Use a new structure with spt_pathcpthld for back compatibility */ 1094d467ac0aSXin Long struct sctp_paddrthlds_v2 { 1095d467ac0aSXin Long sctp_assoc_t spt_assoc_id; 1096d467ac0aSXin Long struct sockaddr_storage spt_address; 1097d467ac0aSXin Long __u16 spt_pathmaxrxt; 1098d467ac0aSXin Long __u16 spt_pathpfthld; 1099d467ac0aSXin Long __u16 spt_pathcpthld; 1100d467ac0aSXin Long }; 1101d467ac0aSXin Long 1102826d253dSXin Long /* 1103826d253dSXin Long * Socket Option for Getting the Association/Stream-Specific PR-SCTP Status 1104826d253dSXin Long */ 1105826d253dSXin Long struct sctp_prstatus { 1106826d253dSXin Long sctp_assoc_t sprstat_assoc_id; 1107826d253dSXin Long __u16 sprstat_sid; 1108826d253dSXin Long __u16 sprstat_policy; 1109826d253dSXin Long __u64 sprstat_abandoned_unsent; 1110826d253dSXin Long __u64 sprstat_abandoned_sent; 1111826d253dSXin Long }; 1112826d253dSXin Long 1113f959fb44SXin Long struct sctp_default_prinfo { 1114f959fb44SXin Long sctp_assoc_t pr_assoc_id; 1115f959fb44SXin Long __u32 pr_value; 1116f959fb44SXin Long __u16 pr_policy; 1117f959fb44SXin Long }; 1118f959fb44SXin Long 1119dca3f53cSPhil Sutter struct sctp_info { 1120dca3f53cSPhil Sutter __u32 sctpi_tag; 1121dca3f53cSPhil Sutter __u32 sctpi_state; 1122dca3f53cSPhil Sutter __u32 sctpi_rwnd; 1123dca3f53cSPhil Sutter __u16 sctpi_unackdata; 1124dca3f53cSPhil Sutter __u16 sctpi_penddata; 1125dca3f53cSPhil Sutter __u16 sctpi_instrms; 1126dca3f53cSPhil Sutter __u16 sctpi_outstrms; 1127dca3f53cSPhil Sutter __u32 sctpi_fragmentation_point; 1128dca3f53cSPhil Sutter __u32 sctpi_inqueue; 1129dca3f53cSPhil Sutter __u32 sctpi_outqueue; 1130dca3f53cSPhil Sutter __u32 sctpi_overall_error; 1131dca3f53cSPhil Sutter __u32 sctpi_max_burst; 1132dca3f53cSPhil Sutter __u32 sctpi_maxseg; 1133dca3f53cSPhil Sutter __u32 sctpi_peer_rwnd; 1134dca3f53cSPhil Sutter __u32 sctpi_peer_tag; 1135dca3f53cSPhil Sutter __u8 sctpi_peer_capable; 1136dca3f53cSPhil Sutter __u8 sctpi_peer_sack; 1137dca3f53cSPhil Sutter __u16 __reserved1; 1138dca3f53cSPhil Sutter 1139dca3f53cSPhil Sutter /* assoc status info */ 1140dca3f53cSPhil Sutter __u64 sctpi_isacks; 1141dca3f53cSPhil Sutter __u64 sctpi_osacks; 1142dca3f53cSPhil Sutter __u64 sctpi_opackets; 1143dca3f53cSPhil Sutter __u64 sctpi_ipackets; 1144dca3f53cSPhil Sutter __u64 sctpi_rtxchunks; 1145dca3f53cSPhil Sutter __u64 sctpi_outofseqtsns; 1146dca3f53cSPhil Sutter __u64 sctpi_idupchunks; 1147dca3f53cSPhil Sutter __u64 sctpi_gapcnt; 1148dca3f53cSPhil Sutter __u64 sctpi_ouodchunks; 1149dca3f53cSPhil Sutter __u64 sctpi_iuodchunks; 1150dca3f53cSPhil Sutter __u64 sctpi_oodchunks; 1151dca3f53cSPhil Sutter __u64 sctpi_iodchunks; 1152dca3f53cSPhil Sutter __u64 sctpi_octrlchunks; 1153dca3f53cSPhil Sutter __u64 sctpi_ictrlchunks; 1154dca3f53cSPhil Sutter 1155dca3f53cSPhil Sutter /* primary transport info */ 1156dca3f53cSPhil Sutter struct sockaddr_storage sctpi_p_address; 1157dca3f53cSPhil Sutter __s32 sctpi_p_state; 1158dca3f53cSPhil Sutter __u32 sctpi_p_cwnd; 1159dca3f53cSPhil Sutter __u32 sctpi_p_srtt; 1160dca3f53cSPhil Sutter __u32 sctpi_p_rto; 1161dca3f53cSPhil Sutter __u32 sctpi_p_hbinterval; 1162dca3f53cSPhil Sutter __u32 sctpi_p_pathmaxrxt; 1163dca3f53cSPhil Sutter __u32 sctpi_p_sackdelay; 1164dca3f53cSPhil Sutter __u32 sctpi_p_sackfreq; 1165dca3f53cSPhil Sutter __u32 sctpi_p_ssthresh; 1166dca3f53cSPhil Sutter __u32 sctpi_p_partial_bytes_acked; 1167dca3f53cSPhil Sutter __u32 sctpi_p_flight_size; 1168dca3f53cSPhil Sutter __u16 sctpi_p_error; 1169dca3f53cSPhil Sutter __u16 __reserved2; 1170dca3f53cSPhil Sutter 1171dca3f53cSPhil Sutter /* sctp sock info */ 1172dca3f53cSPhil Sutter __u32 sctpi_s_autoclose; 1173dca3f53cSPhil Sutter __u32 sctpi_s_adaptation_ind; 1174dca3f53cSPhil Sutter __u32 sctpi_s_pd_point; 1175dca3f53cSPhil Sutter __u8 sctpi_s_nodelay; 1176dca3f53cSPhil Sutter __u8 sctpi_s_disable_fragments; 1177dca3f53cSPhil Sutter __u8 sctpi_s_v4mapped; 1178dca3f53cSPhil Sutter __u8 sctpi_s_frag_interleave; 1179dca3f53cSPhil Sutter __u32 sctpi_s_type; 1180dca3f53cSPhil Sutter __u32 __reserved3; 1181dca3f53cSPhil Sutter }; 1182dca3f53cSPhil Sutter 11837f9d68acSXin Long struct sctp_reset_streams { 11847f9d68acSXin Long sctp_assoc_t srs_assoc_id; 11857f9d68acSXin Long uint16_t srs_flags; 11867f9d68acSXin Long uint16_t srs_number_streams; /* 0 == ALL */ 11877f9d68acSXin Long uint16_t srs_stream_list[]; /* list if srs_num_streams is not 0 */ 11887f9d68acSXin Long }; 11897f9d68acSXin Long 1190242bd2d5SXin Long struct sctp_add_streams { 1191242bd2d5SXin Long sctp_assoc_t sas_assoc_id; 1192242bd2d5SXin Long uint16_t sas_instrms; 1193242bd2d5SXin Long uint16_t sas_outstrms; 1194242bd2d5SXin Long }; 1195242bd2d5SXin Long 1196480ba9c1SXin Long struct sctp_event { 1197480ba9c1SXin Long sctp_assoc_t se_assoc_id; 1198480ba9c1SXin Long uint16_t se_type; 1199480ba9c1SXin Long uint8_t se_on; 1200480ba9c1SXin Long }; 1201480ba9c1SXin Long 12028dba2960SXin Long struct sctp_udpencaps { 12038dba2960SXin Long sctp_assoc_t sue_assoc_id; 12048dba2960SXin Long struct sockaddr_storage sue_address; 12058dba2960SXin Long uint16_t sue_port; 12068dba2960SXin Long }; 12078dba2960SXin Long 12085bbbbe32SMarcelo Ricardo Leitner /* SCTP Stream schedulers */ 12095bbbbe32SMarcelo Ricardo Leitner enum sctp_sched_type { 12105bbbbe32SMarcelo Ricardo Leitner SCTP_SS_FCFS, 121112480e3bSXin Long SCTP_SS_DEFAULT = SCTP_SS_FCFS, 1212637784adSMarcelo Ricardo Leitner SCTP_SS_PRIO, 1213ac1ed8b8SMarcelo Ricardo Leitner SCTP_SS_RR, 12144821a076SXin Long SCTP_SS_FC, 1215*42d452e7SXin Long SCTP_SS_WFQ, 1216*42d452e7SXin Long SCTP_SS_MAX = SCTP_SS_WFQ 12175bbbbe32SMarcelo Ricardo Leitner }; 12185bbbbe32SMarcelo Ricardo Leitner 12193190b649SXin Long /* Probe Interval socket option */ 12203190b649SXin Long struct sctp_probeinterval { 12213190b649SXin Long sctp_assoc_t spi_assoc_id; 12223190b649SXin Long struct sockaddr_storage spi_address; 12233190b649SXin Long __u32 spi_interval; 12243190b649SXin Long }; 12253190b649SXin Long 12261b866434SDaniel Borkmann #endif /* _UAPI_SCTP_H */ 1227