11b866434SDaniel Borkmann /* SCTP kernel implementation 21b866434SDaniel Borkmann * (C) Copyright IBM Corp. 2001, 2004 31b866434SDaniel Borkmann * Copyright (c) 1999-2000 Cisco, Inc. 41b866434SDaniel Borkmann * Copyright (c) 1999-2001 Motorola, Inc. 51b866434SDaniel Borkmann * Copyright (c) 2002 Intel Corp. 61b866434SDaniel Borkmann * 71b866434SDaniel Borkmann * This file is part of the SCTP kernel implementation 81b866434SDaniel Borkmann * 91b866434SDaniel Borkmann * This header represents the structures and constants needed to support 101b866434SDaniel Borkmann * the SCTP Extension to the Sockets API. 111b866434SDaniel Borkmann * 121b866434SDaniel Borkmann * This SCTP implementation is free software; 131b866434SDaniel Borkmann * you can redistribute it and/or modify it under the terms of 141b866434SDaniel Borkmann * the GNU General Public License as published by 151b866434SDaniel Borkmann * the Free Software Foundation; either version 2, or (at your option) 161b866434SDaniel Borkmann * any later version. 171b866434SDaniel Borkmann * 181b866434SDaniel Borkmann * This SCTP implementation is distributed in the hope that it 191b866434SDaniel Borkmann * will be useful, but WITHOUT ANY WARRANTY; without even the implied 201b866434SDaniel Borkmann * ************************ 211b866434SDaniel Borkmann * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 221b866434SDaniel Borkmann * See the GNU General Public License for more details. 231b866434SDaniel Borkmann * 241b866434SDaniel Borkmann * You should have received a copy of the GNU General Public License 254b2f13a2SJeff Kirsher * along with GNU CC; see the file COPYING. If not, see 264b2f13a2SJeff Kirsher * <http://www.gnu.org/licenses/>. 271b866434SDaniel Borkmann * 281b866434SDaniel Borkmann * Please send any bug reports or fixes you make to the 291b866434SDaniel Borkmann * email address(es): 3091705c61SDaniel Borkmann * lksctp developers <linux-sctp@vger.kernel.org> 311b866434SDaniel Borkmann * 321b866434SDaniel Borkmann * Or submit a bug report through the following website: 331b866434SDaniel Borkmann * http://www.sf.net/projects/lksctp 341b866434SDaniel Borkmann * 351b866434SDaniel Borkmann * Written or modified by: 361b866434SDaniel Borkmann * La Monte H.P. Yarroll <piggy@acm.org> 371b866434SDaniel Borkmann * R. Stewart <randall@sctp.chicago.il.us> 381b866434SDaniel Borkmann * K. Morneau <kmorneau@cisco.com> 391b866434SDaniel Borkmann * Q. Xie <qxie1@email.mot.com> 401b866434SDaniel Borkmann * Karl Knutson <karl@athena.chicago.il.us> 411b866434SDaniel Borkmann * Jon Grimm <jgrimm@us.ibm.com> 421b866434SDaniel Borkmann * Daisy Chang <daisyc@us.ibm.com> 431b866434SDaniel Borkmann * Ryan Layer <rmlayer@us.ibm.com> 441b866434SDaniel Borkmann * Ardelle Fan <ardelle.fan@intel.com> 451b866434SDaniel Borkmann * Sridhar Samudrala <sri@us.ibm.com> 461b866434SDaniel Borkmann * Inaky Perez-Gonzalez <inaky.gonzalez@intel.com> 471b866434SDaniel Borkmann * Vlad Yasevich <vladislav.yasevich@hp.com> 481b866434SDaniel Borkmann * 491b866434SDaniel Borkmann * Any bugs reported given to us we will try to fix... any fixes shared will 501b866434SDaniel Borkmann * be incorporated into the next SCTP release. 511b866434SDaniel Borkmann */ 521b866434SDaniel Borkmann 531b866434SDaniel Borkmann #ifndef _UAPI_SCTP_H 541b866434SDaniel Borkmann #define _UAPI_SCTP_H 551b866434SDaniel Borkmann 561b866434SDaniel Borkmann #include <linux/types.h> 571b866434SDaniel Borkmann #include <linux/socket.h> 581b866434SDaniel Borkmann 591b866434SDaniel Borkmann typedef __s32 sctp_assoc_t; 601b866434SDaniel Borkmann 611b866434SDaniel Borkmann /* The following symbols come from the Sockets API Extensions for 621b866434SDaniel Borkmann * SCTP <draft-ietf-tsvwg-sctpsocket-07.txt>. 631b866434SDaniel Borkmann */ 641b866434SDaniel Borkmann #define SCTP_RTOINFO 0 651b866434SDaniel Borkmann #define SCTP_ASSOCINFO 1 661b866434SDaniel Borkmann #define SCTP_INITMSG 2 671b866434SDaniel Borkmann #define SCTP_NODELAY 3 /* Get/set nodelay option. */ 681b866434SDaniel Borkmann #define SCTP_AUTOCLOSE 4 691b866434SDaniel Borkmann #define SCTP_SET_PEER_PRIMARY_ADDR 5 701b866434SDaniel Borkmann #define SCTP_PRIMARY_ADDR 6 711b866434SDaniel Borkmann #define SCTP_ADAPTATION_LAYER 7 721b866434SDaniel Borkmann #define SCTP_DISABLE_FRAGMENTS 8 731b866434SDaniel Borkmann #define SCTP_PEER_ADDR_PARAMS 9 741b866434SDaniel Borkmann #define SCTP_DEFAULT_SEND_PARAM 10 751b866434SDaniel Borkmann #define SCTP_EVENTS 11 761b866434SDaniel Borkmann #define SCTP_I_WANT_MAPPED_V4_ADDR 12 /* Turn on/off mapped v4 addresses */ 771b866434SDaniel Borkmann #define SCTP_MAXSEG 13 /* Get/set maximum fragment. */ 781b866434SDaniel Borkmann #define SCTP_STATUS 14 791b866434SDaniel Borkmann #define SCTP_GET_PEER_ADDR_INFO 15 801b866434SDaniel Borkmann #define SCTP_DELAYED_ACK_TIME 16 811b866434SDaniel Borkmann #define SCTP_DELAYED_ACK SCTP_DELAYED_ACK_TIME 821b866434SDaniel Borkmann #define SCTP_DELAYED_SACK SCTP_DELAYED_ACK_TIME 831b866434SDaniel Borkmann #define SCTP_CONTEXT 17 841b866434SDaniel Borkmann #define SCTP_FRAGMENT_INTERLEAVE 18 851b866434SDaniel Borkmann #define SCTP_PARTIAL_DELIVERY_POINT 19 /* Set/Get partial delivery point */ 861b866434SDaniel Borkmann #define SCTP_MAX_BURST 20 /* Set/Get max burst */ 871b866434SDaniel Borkmann #define SCTP_AUTH_CHUNK 21 /* Set only: add a chunk type to authenticate */ 881b866434SDaniel Borkmann #define SCTP_HMAC_IDENT 22 891b866434SDaniel Borkmann #define SCTP_AUTH_KEY 23 901b866434SDaniel Borkmann #define SCTP_AUTH_ACTIVE_KEY 24 911b866434SDaniel Borkmann #define SCTP_AUTH_DELETE_KEY 25 921b866434SDaniel Borkmann #define SCTP_PEER_AUTH_CHUNKS 26 /* Read only */ 931b866434SDaniel Borkmann #define SCTP_LOCAL_AUTH_CHUNKS 27 /* Read only */ 941b866434SDaniel Borkmann #define SCTP_GET_ASSOC_NUMBER 28 /* Read only */ 951b866434SDaniel Borkmann #define SCTP_GET_ASSOC_ID_LIST 29 /* Read only */ 961b866434SDaniel Borkmann #define SCTP_AUTO_ASCONF 30 971b866434SDaniel Borkmann #define SCTP_PEER_ADDR_THLDS 31 980d3a421dSGeir Ola Vaagland #define SCTP_RECVRCVINFO 32 992347c80fSGeir Ola Vaagland #define SCTP_RECVNXTINFO 33 1006b3fd5f3SGeir Ola Vaagland #define SCTP_DEFAULT_SNDINFO 34 1011b866434SDaniel Borkmann 1021b866434SDaniel Borkmann /* Internal Socket Options. Some of the sctp library functions are 1031b866434SDaniel Borkmann * implemented using these socket options. 1041b866434SDaniel Borkmann */ 1051b866434SDaniel Borkmann #define SCTP_SOCKOPT_BINDX_ADD 100 /* BINDX requests for adding addrs */ 1061b866434SDaniel Borkmann #define SCTP_SOCKOPT_BINDX_REM 101 /* BINDX requests for removing addrs. */ 1071b866434SDaniel Borkmann #define SCTP_SOCKOPT_PEELOFF 102 /* peel off association. */ 1081b866434SDaniel Borkmann /* Options 104-106 are deprecated and removed. Do not use this space */ 1091b866434SDaniel Borkmann #define SCTP_SOCKOPT_CONNECTX_OLD 107 /* CONNECTX old requests. */ 1101b866434SDaniel Borkmann #define SCTP_GET_PEER_ADDRS 108 /* Get all peer address. */ 1111b866434SDaniel Borkmann #define SCTP_GET_LOCAL_ADDRS 109 /* Get all local address. */ 1121b866434SDaniel Borkmann #define SCTP_SOCKOPT_CONNECTX 110 /* CONNECTX requests. */ 1131b866434SDaniel Borkmann #define SCTP_SOCKOPT_CONNECTX3 111 /* CONNECTX requests (updated) */ 1141b866434SDaniel Borkmann #define SCTP_GET_ASSOC_STATS 112 /* Read only */ 11528aa4c26SXin Long #define SCTP_PR_SUPPORTED 113 116f959fb44SXin Long #define SCTP_DEFAULT_PRINFO 114 117826d253dSXin Long #define SCTP_PR_ASSOC_STATUS 115 1189fb657aeSXin Long #define SCTP_ENABLE_STREAM_RESET 118 1197f9d68acSXin Long #define SCTP_RESET_STREAMS 119 120a92ce1a4SXin Long #define SCTP_RESET_ASSOC 120 121242bd2d5SXin Long #define SCTP_ADD_STREAMS 121 122f959fb44SXin Long 123f959fb44SXin Long /* PR-SCTP policies */ 124f959fb44SXin Long #define SCTP_PR_SCTP_NONE 0x0000 125f959fb44SXin Long #define SCTP_PR_SCTP_TTL 0x0010 126f959fb44SXin Long #define SCTP_PR_SCTP_RTX 0x0020 127f959fb44SXin Long #define SCTP_PR_SCTP_PRIO 0x0030 128f959fb44SXin Long #define SCTP_PR_SCTP_MAX SCTP_PR_SCTP_PRIO 129f959fb44SXin Long #define SCTP_PR_SCTP_MASK 0x0030 130f959fb44SXin Long 131f959fb44SXin Long #define __SCTP_PR_INDEX(x) ((x >> 4) - 1) 132f959fb44SXin Long #define SCTP_PR_INDEX(x) __SCTP_PR_INDEX(SCTP_PR_SCTP_ ## x) 133f959fb44SXin Long 134f959fb44SXin Long #define SCTP_PR_POLICY(x) ((x) & SCTP_PR_SCTP_MASK) 135f959fb44SXin Long #define SCTP_PR_SET_POLICY(flags, x) \ 136f959fb44SXin Long do { \ 137f959fb44SXin Long flags &= ~SCTP_PR_SCTP_MASK; \ 138f959fb44SXin Long flags |= x; \ 139f959fb44SXin Long } while (0) 140f959fb44SXin Long 141f959fb44SXin Long #define SCTP_PR_TTL_ENABLED(x) (SCTP_PR_POLICY(x) == SCTP_PR_SCTP_TTL) 142f959fb44SXin Long #define SCTP_PR_RTX_ENABLED(x) (SCTP_PR_POLICY(x) == SCTP_PR_SCTP_RTX) 143f959fb44SXin Long #define SCTP_PR_PRIO_ENABLED(x) (SCTP_PR_POLICY(x) == SCTP_PR_SCTP_PRIO) 1441b866434SDaniel Borkmann 1459fb657aeSXin Long /* For enable stream reset */ 1469fb657aeSXin Long #define SCTP_ENABLE_RESET_STREAM_REQ 0x01 1479fb657aeSXin Long #define SCTP_ENABLE_RESET_ASSOC_REQ 0x02 1489fb657aeSXin Long #define SCTP_ENABLE_CHANGE_ASSOC_REQ 0x04 1499fb657aeSXin Long #define SCTP_ENABLE_STRRESET_MASK 0x07 1509fb657aeSXin Long 1517f9d68acSXin Long #define SCTP_STREAM_RESET_INCOMING 0x01 1527f9d68acSXin Long #define SCTP_STREAM_RESET_OUTGOING 0x02 1537f9d68acSXin Long 1542347c80fSGeir Ola Vaagland /* These are bit fields for msghdr->msg_flags. See section 5.1. */ 1552347c80fSGeir Ola Vaagland /* On user space Linux, these live in <bits/socket.h> as an enum. */ 1562347c80fSGeir Ola Vaagland enum sctp_msg_flags { 1572347c80fSGeir Ola Vaagland MSG_NOTIFICATION = 0x8000, 1582347c80fSGeir Ola Vaagland #define MSG_NOTIFICATION MSG_NOTIFICATION 1592347c80fSGeir Ola Vaagland }; 1602347c80fSGeir Ola Vaagland 1610d3a421dSGeir Ola Vaagland /* 5.3.1 SCTP Initiation Structure (SCTP_INIT) 1621b866434SDaniel Borkmann * 1631b866434SDaniel Borkmann * This cmsghdr structure provides information for initializing new 1641b866434SDaniel Borkmann * SCTP associations with sendmsg(). The SCTP_INITMSG socket option 1651b866434SDaniel Borkmann * uses this same data structure. This structure is not used for 1661b866434SDaniel Borkmann * recvmsg(). 1671b866434SDaniel Borkmann * 1681b866434SDaniel Borkmann * cmsg_level cmsg_type cmsg_data[] 1691b866434SDaniel Borkmann * ------------ ------------ ---------------------- 1701b866434SDaniel Borkmann * IPPROTO_SCTP SCTP_INIT struct sctp_initmsg 1711b866434SDaniel Borkmann */ 1721b866434SDaniel Borkmann struct sctp_initmsg { 1731b866434SDaniel Borkmann __u16 sinit_num_ostreams; 1741b866434SDaniel Borkmann __u16 sinit_max_instreams; 1751b866434SDaniel Borkmann __u16 sinit_max_attempts; 1761b866434SDaniel Borkmann __u16 sinit_max_init_timeo; 1771b866434SDaniel Borkmann }; 1781b866434SDaniel Borkmann 1790d3a421dSGeir Ola Vaagland /* 5.3.2 SCTP Header Information Structure (SCTP_SNDRCV) 1801b866434SDaniel Borkmann * 1811b866434SDaniel Borkmann * This cmsghdr structure specifies SCTP options for sendmsg() and 1821b866434SDaniel Borkmann * describes SCTP header information about a received message through 1831b866434SDaniel Borkmann * recvmsg(). 1841b866434SDaniel Borkmann * 1851b866434SDaniel Borkmann * cmsg_level cmsg_type cmsg_data[] 1861b866434SDaniel Borkmann * ------------ ------------ ---------------------- 1871b866434SDaniel Borkmann * IPPROTO_SCTP SCTP_SNDRCV struct sctp_sndrcvinfo 1881b866434SDaniel Borkmann */ 1891b866434SDaniel Borkmann struct sctp_sndrcvinfo { 1901b866434SDaniel Borkmann __u16 sinfo_stream; 1911b866434SDaniel Borkmann __u16 sinfo_ssn; 1921b866434SDaniel Borkmann __u16 sinfo_flags; 1931b866434SDaniel Borkmann __u32 sinfo_ppid; 1941b866434SDaniel Borkmann __u32 sinfo_context; 1951b866434SDaniel Borkmann __u32 sinfo_timetolive; 1961b866434SDaniel Borkmann __u32 sinfo_tsn; 1971b866434SDaniel Borkmann __u32 sinfo_cumtsn; 1981b866434SDaniel Borkmann sctp_assoc_t sinfo_assoc_id; 1991b866434SDaniel Borkmann }; 2001b866434SDaniel Borkmann 20163b94938SGeir Ola Vaagland /* 5.3.4 SCTP Send Information Structure (SCTP_SNDINFO) 20263b94938SGeir Ola Vaagland * 20363b94938SGeir Ola Vaagland * This cmsghdr structure specifies SCTP options for sendmsg(). 20463b94938SGeir Ola Vaagland * 20563b94938SGeir Ola Vaagland * cmsg_level cmsg_type cmsg_data[] 20663b94938SGeir Ola Vaagland * ------------ ------------ ------------------- 20763b94938SGeir Ola Vaagland * IPPROTO_SCTP SCTP_SNDINFO struct sctp_sndinfo 20863b94938SGeir Ola Vaagland */ 20963b94938SGeir Ola Vaagland struct sctp_sndinfo { 21063b94938SGeir Ola Vaagland __u16 snd_sid; 21163b94938SGeir Ola Vaagland __u16 snd_flags; 21263b94938SGeir Ola Vaagland __u32 snd_ppid; 21363b94938SGeir Ola Vaagland __u32 snd_context; 21463b94938SGeir Ola Vaagland sctp_assoc_t snd_assoc_id; 21563b94938SGeir Ola Vaagland }; 21663b94938SGeir Ola Vaagland 2170d3a421dSGeir Ola Vaagland /* 5.3.5 SCTP Receive Information Structure (SCTP_RCVINFO) 2180d3a421dSGeir Ola Vaagland * 2190d3a421dSGeir Ola Vaagland * This cmsghdr structure describes SCTP receive information 2200d3a421dSGeir Ola Vaagland * about a received message through recvmsg(). 2210d3a421dSGeir Ola Vaagland * 2220d3a421dSGeir Ola Vaagland * cmsg_level cmsg_type cmsg_data[] 2230d3a421dSGeir Ola Vaagland * ------------ ------------ ------------------- 2240d3a421dSGeir Ola Vaagland * IPPROTO_SCTP SCTP_RCVINFO struct sctp_rcvinfo 2250d3a421dSGeir Ola Vaagland */ 2260d3a421dSGeir Ola Vaagland struct sctp_rcvinfo { 2270d3a421dSGeir Ola Vaagland __u16 rcv_sid; 2280d3a421dSGeir Ola Vaagland __u16 rcv_ssn; 2290d3a421dSGeir Ola Vaagland __u16 rcv_flags; 2300d3a421dSGeir Ola Vaagland __u32 rcv_ppid; 2310d3a421dSGeir Ola Vaagland __u32 rcv_tsn; 2320d3a421dSGeir Ola Vaagland __u32 rcv_cumtsn; 2330d3a421dSGeir Ola Vaagland __u32 rcv_context; 2340d3a421dSGeir Ola Vaagland sctp_assoc_t rcv_assoc_id; 2350d3a421dSGeir Ola Vaagland }; 2360d3a421dSGeir Ola Vaagland 2372347c80fSGeir Ola Vaagland /* 5.3.6 SCTP Next Receive Information Structure (SCTP_NXTINFO) 2382347c80fSGeir Ola Vaagland * 2392347c80fSGeir Ola Vaagland * This cmsghdr structure describes SCTP receive information 2402347c80fSGeir Ola Vaagland * of the next message that will be delivered through recvmsg() 2412347c80fSGeir Ola Vaagland * if this information is already available when delivering 2422347c80fSGeir Ola Vaagland * the current message. 2432347c80fSGeir Ola Vaagland * 2442347c80fSGeir Ola Vaagland * cmsg_level cmsg_type cmsg_data[] 2452347c80fSGeir Ola Vaagland * ------------ ------------ ------------------- 2462347c80fSGeir Ola Vaagland * IPPROTO_SCTP SCTP_NXTINFO struct sctp_nxtinfo 2472347c80fSGeir Ola Vaagland */ 2482347c80fSGeir Ola Vaagland struct sctp_nxtinfo { 2492347c80fSGeir Ola Vaagland __u16 nxt_sid; 2502347c80fSGeir Ola Vaagland __u16 nxt_flags; 2512347c80fSGeir Ola Vaagland __u32 nxt_ppid; 2522347c80fSGeir Ola Vaagland __u32 nxt_length; 2532347c80fSGeir Ola Vaagland sctp_assoc_t nxt_assoc_id; 2542347c80fSGeir Ola Vaagland }; 2552347c80fSGeir Ola Vaagland 2561b866434SDaniel Borkmann /* 2571b866434SDaniel Borkmann * sinfo_flags: 16 bits (unsigned integer) 2581b866434SDaniel Borkmann * 2591b866434SDaniel Borkmann * This field may contain any of the following flags and is composed of 2601b866434SDaniel Borkmann * a bitwise OR of these values. 2611b866434SDaniel Borkmann */ 2621b866434SDaniel Borkmann enum sctp_sinfo_flags { 2632347c80fSGeir Ola Vaagland SCTP_UNORDERED = (1 << 0), /* Send/receive message unordered. */ 2642347c80fSGeir Ola Vaagland SCTP_ADDR_OVER = (1 << 1), /* Override the primary destination. */ 2652347c80fSGeir Ola Vaagland SCTP_ABORT = (1 << 2), /* Send an ABORT message to the peer. */ 2662347c80fSGeir Ola Vaagland SCTP_SACK_IMMEDIATELY = (1 << 3), /* SACK should be sent without delay. */ 2672347c80fSGeir Ola Vaagland SCTP_NOTIFICATION = MSG_NOTIFICATION, /* Next message is not user msg but notification. */ 2681b866434SDaniel Borkmann SCTP_EOF = MSG_FIN, /* Initiate graceful shutdown process. */ 2691b866434SDaniel Borkmann }; 2701b866434SDaniel Borkmann 2711b866434SDaniel Borkmann typedef union { 2721b866434SDaniel Borkmann __u8 raw; 2731b866434SDaniel Borkmann struct sctp_initmsg init; 2741b866434SDaniel Borkmann struct sctp_sndrcvinfo sndrcv; 2751b866434SDaniel Borkmann } sctp_cmsg_data_t; 2761b866434SDaniel Borkmann 2771b866434SDaniel Borkmann /* These are cmsg_types. */ 2781b866434SDaniel Borkmann typedef enum sctp_cmsg_type { 2791b866434SDaniel Borkmann SCTP_INIT, /* 5.2.1 SCTP Initiation Structure */ 2801b866434SDaniel Borkmann #define SCTP_INIT SCTP_INIT 2811b866434SDaniel Borkmann SCTP_SNDRCV, /* 5.2.2 SCTP Header Information Structure */ 2821b866434SDaniel Borkmann #define SCTP_SNDRCV SCTP_SNDRCV 28363b94938SGeir Ola Vaagland SCTP_SNDINFO, /* 5.3.4 SCTP Send Information Structure */ 28463b94938SGeir Ola Vaagland #define SCTP_SNDINFO SCTP_SNDINFO 2850d3a421dSGeir Ola Vaagland SCTP_RCVINFO, /* 5.3.5 SCTP Receive Information Structure */ 2860d3a421dSGeir Ola Vaagland #define SCTP_RCVINFO SCTP_RCVINFO 2872347c80fSGeir Ola Vaagland SCTP_NXTINFO, /* 5.3.6 SCTP Next Receive Information Structure */ 2882347c80fSGeir Ola Vaagland #define SCTP_NXTINFO SCTP_NXTINFO 2891b866434SDaniel Borkmann } sctp_cmsg_t; 2901b866434SDaniel Borkmann 2911b866434SDaniel Borkmann /* 2921b866434SDaniel Borkmann * 5.3.1.1 SCTP_ASSOC_CHANGE 2931b866434SDaniel Borkmann * 2941b866434SDaniel Borkmann * Communication notifications inform the ULP that an SCTP association 2951b866434SDaniel Borkmann * has either begun or ended. The identifier for a new association is 2961b866434SDaniel Borkmann * provided by this notificaion. The notification information has the 2971b866434SDaniel Borkmann * following format: 2981b866434SDaniel Borkmann * 2991b866434SDaniel Borkmann */ 3001b866434SDaniel Borkmann struct sctp_assoc_change { 3011b866434SDaniel Borkmann __u16 sac_type; 3021b866434SDaniel Borkmann __u16 sac_flags; 3031b866434SDaniel Borkmann __u32 sac_length; 3041b866434SDaniel Borkmann __u16 sac_state; 3051b866434SDaniel Borkmann __u16 sac_error; 3061b866434SDaniel Borkmann __u16 sac_outbound_streams; 3071b866434SDaniel Borkmann __u16 sac_inbound_streams; 3081b866434SDaniel Borkmann sctp_assoc_t sac_assoc_id; 3091b866434SDaniel Borkmann __u8 sac_info[0]; 3101b866434SDaniel Borkmann }; 3111b866434SDaniel Borkmann 3121b866434SDaniel Borkmann /* 3131b866434SDaniel Borkmann * sac_state: 32 bits (signed integer) 3141b866434SDaniel Borkmann * 3151b866434SDaniel Borkmann * This field holds one of a number of values that communicate the 3161b866434SDaniel Borkmann * event that happened to the association. They include: 3171b866434SDaniel Borkmann * 3181b866434SDaniel Borkmann * Note: The following state names deviate from the API draft as 3191b866434SDaniel Borkmann * the names clash too easily with other kernel symbols. 3201b866434SDaniel Borkmann */ 3211b866434SDaniel Borkmann enum sctp_sac_state { 3221b866434SDaniel Borkmann SCTP_COMM_UP, 3231b866434SDaniel Borkmann SCTP_COMM_LOST, 3241b866434SDaniel Borkmann SCTP_RESTART, 3251b866434SDaniel Borkmann SCTP_SHUTDOWN_COMP, 3261b866434SDaniel Borkmann SCTP_CANT_STR_ASSOC, 3271b866434SDaniel Borkmann }; 3281b866434SDaniel Borkmann 3291b866434SDaniel Borkmann /* 3301b866434SDaniel Borkmann * 5.3.1.2 SCTP_PEER_ADDR_CHANGE 3311b866434SDaniel Borkmann * 3321b866434SDaniel Borkmann * When a destination address on a multi-homed peer encounters a change 3331b866434SDaniel Borkmann * an interface details event is sent. The information has the 3341b866434SDaniel Borkmann * following structure: 3351b866434SDaniel Borkmann */ 3361b866434SDaniel Borkmann struct sctp_paddr_change { 3371b866434SDaniel Borkmann __u16 spc_type; 3381b866434SDaniel Borkmann __u16 spc_flags; 3391b866434SDaniel Borkmann __u32 spc_length; 3401b866434SDaniel Borkmann struct sockaddr_storage spc_aaddr; 3411b866434SDaniel Borkmann int spc_state; 3421b866434SDaniel Borkmann int spc_error; 3431b866434SDaniel Borkmann sctp_assoc_t spc_assoc_id; 3441b866434SDaniel Borkmann } __attribute__((packed, aligned(4))); 3451b866434SDaniel Borkmann 3461b866434SDaniel Borkmann /* 3471b866434SDaniel Borkmann * spc_state: 32 bits (signed integer) 3481b866434SDaniel Borkmann * 3491b866434SDaniel Borkmann * This field holds one of a number of values that communicate the 3501b866434SDaniel Borkmann * event that happened to the address. They include: 3511b866434SDaniel Borkmann */ 3521b866434SDaniel Borkmann enum sctp_spc_state { 3531b866434SDaniel Borkmann SCTP_ADDR_AVAILABLE, 3541b866434SDaniel Borkmann SCTP_ADDR_UNREACHABLE, 3551b866434SDaniel Borkmann SCTP_ADDR_REMOVED, 3561b866434SDaniel Borkmann SCTP_ADDR_ADDED, 3571b866434SDaniel Borkmann SCTP_ADDR_MADE_PRIM, 3581b866434SDaniel Borkmann SCTP_ADDR_CONFIRMED, 3591b866434SDaniel Borkmann }; 3601b866434SDaniel Borkmann 3611b866434SDaniel Borkmann 3621b866434SDaniel Borkmann /* 3631b866434SDaniel Borkmann * 5.3.1.3 SCTP_REMOTE_ERROR 3641b866434SDaniel Borkmann * 3651b866434SDaniel Borkmann * A remote peer may send an Operational Error message to its peer. 3661b866434SDaniel Borkmann * This message indicates a variety of error conditions on an 3671b866434SDaniel Borkmann * association. The entire error TLV as it appears on the wire is 3681b866434SDaniel Borkmann * included in a SCTP_REMOTE_ERROR event. Please refer to the SCTP 3691b866434SDaniel Borkmann * specification [SCTP] and any extensions for a list of possible 3701b866434SDaniel Borkmann * error formats. SCTP error TLVs have the format: 3711b866434SDaniel Borkmann */ 3721b866434SDaniel Borkmann struct sctp_remote_error { 3731b866434SDaniel Borkmann __u16 sre_type; 3741b866434SDaniel Borkmann __u16 sre_flags; 3751b866434SDaniel Borkmann __u32 sre_length; 3761b866434SDaniel Borkmann __u16 sre_error; 3771b866434SDaniel Borkmann sctp_assoc_t sre_assoc_id; 3781b866434SDaniel Borkmann __u8 sre_data[0]; 3791b866434SDaniel Borkmann }; 3801b866434SDaniel Borkmann 3811b866434SDaniel Borkmann 3821b866434SDaniel Borkmann /* 3831b866434SDaniel Borkmann * 5.3.1.4 SCTP_SEND_FAILED 3841b866434SDaniel Borkmann * 3851b866434SDaniel Borkmann * If SCTP cannot deliver a message it may return the message as a 3861b866434SDaniel Borkmann * notification. 3871b866434SDaniel Borkmann */ 3881b866434SDaniel Borkmann struct sctp_send_failed { 3891b866434SDaniel Borkmann __u16 ssf_type; 3901b866434SDaniel Borkmann __u16 ssf_flags; 3911b866434SDaniel Borkmann __u32 ssf_length; 3921b866434SDaniel Borkmann __u32 ssf_error; 3931b866434SDaniel Borkmann struct sctp_sndrcvinfo ssf_info; 3941b866434SDaniel Borkmann sctp_assoc_t ssf_assoc_id; 3951b866434SDaniel Borkmann __u8 ssf_data[0]; 3961b866434SDaniel Borkmann }; 3971b866434SDaniel Borkmann 3981b866434SDaniel Borkmann /* 3991b866434SDaniel Borkmann * ssf_flags: 16 bits (unsigned integer) 4001b866434SDaniel Borkmann * 4011b866434SDaniel Borkmann * The flag value will take one of the following values 4021b866434SDaniel Borkmann * 4031b866434SDaniel Borkmann * SCTP_DATA_UNSENT - Indicates that the data was never put on 4041b866434SDaniel Borkmann * the wire. 4051b866434SDaniel Borkmann * 4061b866434SDaniel Borkmann * SCTP_DATA_SENT - Indicates that the data was put on the wire. 4071b866434SDaniel Borkmann * Note that this does not necessarily mean that the 4081b866434SDaniel Borkmann * data was (or was not) successfully delivered. 4091b866434SDaniel Borkmann */ 4101b866434SDaniel Borkmann enum sctp_ssf_flags { 4111b866434SDaniel Borkmann SCTP_DATA_UNSENT, 4121b866434SDaniel Borkmann SCTP_DATA_SENT, 4131b866434SDaniel Borkmann }; 4141b866434SDaniel Borkmann 4151b866434SDaniel Borkmann /* 4161b866434SDaniel Borkmann * 5.3.1.5 SCTP_SHUTDOWN_EVENT 4171b866434SDaniel Borkmann * 4181b866434SDaniel Borkmann * When a peer sends a SHUTDOWN, SCTP delivers this notification to 4191b866434SDaniel Borkmann * inform the application that it should cease sending data. 4201b866434SDaniel Borkmann */ 4211b866434SDaniel Borkmann struct sctp_shutdown_event { 4221b866434SDaniel Borkmann __u16 sse_type; 4231b866434SDaniel Borkmann __u16 sse_flags; 4241b866434SDaniel Borkmann __u32 sse_length; 4251b866434SDaniel Borkmann sctp_assoc_t sse_assoc_id; 4261b866434SDaniel Borkmann }; 4271b866434SDaniel Borkmann 4281b866434SDaniel Borkmann /* 4291b866434SDaniel Borkmann * 5.3.1.6 SCTP_ADAPTATION_INDICATION 4301b866434SDaniel Borkmann * 4311b866434SDaniel Borkmann * When a peer sends a Adaptation Layer Indication parameter , SCTP 4321b866434SDaniel Borkmann * delivers this notification to inform the application 4331b866434SDaniel Borkmann * that of the peers requested adaptation layer. 4341b866434SDaniel Borkmann */ 4351b866434SDaniel Borkmann struct sctp_adaptation_event { 4361b866434SDaniel Borkmann __u16 sai_type; 4371b866434SDaniel Borkmann __u16 sai_flags; 4381b866434SDaniel Borkmann __u32 sai_length; 4391b866434SDaniel Borkmann __u32 sai_adaptation_ind; 4401b866434SDaniel Borkmann sctp_assoc_t sai_assoc_id; 4411b866434SDaniel Borkmann }; 4421b866434SDaniel Borkmann 4431b866434SDaniel Borkmann /* 4441b866434SDaniel Borkmann * 5.3.1.7 SCTP_PARTIAL_DELIVERY_EVENT 4451b866434SDaniel Borkmann * 4461b866434SDaniel Borkmann * When a receiver is engaged in a partial delivery of a 4471b866434SDaniel Borkmann * message this notification will be used to indicate 4481b866434SDaniel Borkmann * various events. 4491b866434SDaniel Borkmann */ 4501b866434SDaniel Borkmann struct sctp_pdapi_event { 4511b866434SDaniel Borkmann __u16 pdapi_type; 4521b866434SDaniel Borkmann __u16 pdapi_flags; 4531b866434SDaniel Borkmann __u32 pdapi_length; 4541b866434SDaniel Borkmann __u32 pdapi_indication; 4551b866434SDaniel Borkmann sctp_assoc_t pdapi_assoc_id; 4561b866434SDaniel Borkmann }; 4571b866434SDaniel Borkmann 4581b866434SDaniel Borkmann enum { SCTP_PARTIAL_DELIVERY_ABORTED=0, }; 4591b866434SDaniel Borkmann 4601b866434SDaniel Borkmann /* 4611b866434SDaniel Borkmann * 5.3.1.8. SCTP_AUTHENTICATION_EVENT 4621b866434SDaniel Borkmann * 4631b866434SDaniel Borkmann * When a receiver is using authentication this message will provide 4641b866434SDaniel Borkmann * notifications regarding new keys being made active as well as errors. 4651b866434SDaniel Borkmann */ 4661b866434SDaniel Borkmann struct sctp_authkey_event { 4671b866434SDaniel Borkmann __u16 auth_type; 4681b866434SDaniel Borkmann __u16 auth_flags; 4691b866434SDaniel Borkmann __u32 auth_length; 4701b866434SDaniel Borkmann __u16 auth_keynumber; 4711b866434SDaniel Borkmann __u16 auth_altkeynumber; 4721b866434SDaniel Borkmann __u32 auth_indication; 4731b866434SDaniel Borkmann sctp_assoc_t auth_assoc_id; 4741b866434SDaniel Borkmann }; 4751b866434SDaniel Borkmann 4761b866434SDaniel Borkmann enum { SCTP_AUTH_NEWKEY = 0, }; 4771b866434SDaniel Borkmann 4781b866434SDaniel Borkmann /* 4791b866434SDaniel Borkmann * 6.1.9. SCTP_SENDER_DRY_EVENT 4801b866434SDaniel Borkmann * 4811b866434SDaniel Borkmann * When the SCTP stack has no more user data to send or retransmit, this 4821b866434SDaniel Borkmann * notification is given to the user. Also, at the time when a user app 4831b866434SDaniel Borkmann * subscribes to this event, if there is no data to be sent or 4841b866434SDaniel Borkmann * retransmit, the stack will immediately send up this notification. 4851b866434SDaniel Borkmann */ 4861b866434SDaniel Borkmann struct sctp_sender_dry_event { 4871b866434SDaniel Borkmann __u16 sender_dry_type; 4881b866434SDaniel Borkmann __u16 sender_dry_flags; 4891b866434SDaniel Borkmann __u32 sender_dry_length; 4901b866434SDaniel Borkmann sctp_assoc_t sender_dry_assoc_id; 4911b866434SDaniel Borkmann }; 4921b866434SDaniel Borkmann 49335ea82d6SXin Long #define SCTP_STREAM_RESET_INCOMING_SSN 0x0001 49435ea82d6SXin Long #define SCTP_STREAM_RESET_OUTGOING_SSN 0x0002 49535ea82d6SXin Long #define SCTP_STREAM_RESET_DENIED 0x0004 49635ea82d6SXin Long #define SCTP_STREAM_RESET_FAILED 0x0008 49735ea82d6SXin Long struct sctp_stream_reset_event { 49835ea82d6SXin Long __u16 strreset_type; 49935ea82d6SXin Long __u16 strreset_flags; 50035ea82d6SXin Long __u32 strreset_length; 50135ea82d6SXin Long sctp_assoc_t strreset_assoc_id; 50235ea82d6SXin Long __u16 strreset_stream_list[]; 50335ea82d6SXin Long }; 50435ea82d6SXin Long 505*c95129d1SXin Long #define SCTP_ASSOC_RESET_DENIED 0x0004 506*c95129d1SXin Long #define SCTP_ASSOC_RESET_FAILED 0x0008 507*c95129d1SXin Long struct sctp_assoc_reset_event { 508*c95129d1SXin Long __u16 assocreset_type; 509*c95129d1SXin Long __u16 assocreset_flags; 510*c95129d1SXin Long __u32 assocreset_length; 511*c95129d1SXin Long sctp_assoc_t assocreset_assoc_id; 512*c95129d1SXin Long __u32 assocreset_local_tsn; 513*c95129d1SXin Long __u32 assocreset_remote_tsn; 514*c95129d1SXin Long }; 515*c95129d1SXin Long 5161b866434SDaniel Borkmann /* 5171b866434SDaniel Borkmann * Described in Section 7.3 5181b866434SDaniel Borkmann * Ancillary Data and Notification Interest Options 5191b866434SDaniel Borkmann */ 5201b866434SDaniel Borkmann struct sctp_event_subscribe { 5211b866434SDaniel Borkmann __u8 sctp_data_io_event; 5221b866434SDaniel Borkmann __u8 sctp_association_event; 5231b866434SDaniel Borkmann __u8 sctp_address_event; 5241b866434SDaniel Borkmann __u8 sctp_send_failure_event; 5251b866434SDaniel Borkmann __u8 sctp_peer_error_event; 5261b866434SDaniel Borkmann __u8 sctp_shutdown_event; 5271b866434SDaniel Borkmann __u8 sctp_partial_delivery_event; 5281b866434SDaniel Borkmann __u8 sctp_adaptation_layer_event; 5291b866434SDaniel Borkmann __u8 sctp_authentication_event; 5301b866434SDaniel Borkmann __u8 sctp_sender_dry_event; 53135ea82d6SXin Long __u8 sctp_stream_reset_event; 532*c95129d1SXin Long __u8 sctp_assoc_reset_event; 5331b866434SDaniel Borkmann }; 5341b866434SDaniel Borkmann 5351b866434SDaniel Borkmann /* 5361b866434SDaniel Borkmann * 5.3.1 SCTP Notification Structure 5371b866434SDaniel Borkmann * 5381b866434SDaniel Borkmann * The notification structure is defined as the union of all 5391b866434SDaniel Borkmann * notification types. 5401b866434SDaniel Borkmann * 5411b866434SDaniel Borkmann */ 5421b866434SDaniel Borkmann union sctp_notification { 5431b866434SDaniel Borkmann struct { 5441b866434SDaniel Borkmann __u16 sn_type; /* Notification type. */ 5451b866434SDaniel Borkmann __u16 sn_flags; 5461b866434SDaniel Borkmann __u32 sn_length; 5471b866434SDaniel Borkmann } sn_header; 5481b866434SDaniel Borkmann struct sctp_assoc_change sn_assoc_change; 5491b866434SDaniel Borkmann struct sctp_paddr_change sn_paddr_change; 5501b866434SDaniel Borkmann struct sctp_remote_error sn_remote_error; 5511b866434SDaniel Borkmann struct sctp_send_failed sn_send_failed; 5521b866434SDaniel Borkmann struct sctp_shutdown_event sn_shutdown_event; 5531b866434SDaniel Borkmann struct sctp_adaptation_event sn_adaptation_event; 5541b866434SDaniel Borkmann struct sctp_pdapi_event sn_pdapi_event; 5551b866434SDaniel Borkmann struct sctp_authkey_event sn_authkey_event; 5561b866434SDaniel Borkmann struct sctp_sender_dry_event sn_sender_dry_event; 55735ea82d6SXin Long struct sctp_stream_reset_event sn_strreset_event; 558*c95129d1SXin Long struct sctp_assoc_reset_event sn_assocreset_event; 5591b866434SDaniel Borkmann }; 5601b866434SDaniel Borkmann 5611b866434SDaniel Borkmann /* Section 5.3.1 5621b866434SDaniel Borkmann * All standard values for sn_type flags are greater than 2^15. 5631b866434SDaniel Borkmann * Values from 2^15 and down are reserved. 5641b866434SDaniel Borkmann */ 5651b866434SDaniel Borkmann 5661b866434SDaniel Borkmann enum sctp_sn_type { 5671b866434SDaniel Borkmann SCTP_SN_TYPE_BASE = (1<<15), 5681b866434SDaniel Borkmann SCTP_ASSOC_CHANGE, 5691b866434SDaniel Borkmann #define SCTP_ASSOC_CHANGE SCTP_ASSOC_CHANGE 5701b866434SDaniel Borkmann SCTP_PEER_ADDR_CHANGE, 5711b866434SDaniel Borkmann #define SCTP_PEER_ADDR_CHANGE SCTP_PEER_ADDR_CHANGE 5721b866434SDaniel Borkmann SCTP_SEND_FAILED, 5731b866434SDaniel Borkmann #define SCTP_SEND_FAILED SCTP_SEND_FAILED 5741b866434SDaniel Borkmann SCTP_REMOTE_ERROR, 5751b866434SDaniel Borkmann #define SCTP_REMOTE_ERROR SCTP_REMOTE_ERROR 5761b866434SDaniel Borkmann SCTP_SHUTDOWN_EVENT, 5771b866434SDaniel Borkmann #define SCTP_SHUTDOWN_EVENT SCTP_SHUTDOWN_EVENT 5781b866434SDaniel Borkmann SCTP_PARTIAL_DELIVERY_EVENT, 5791b866434SDaniel Borkmann #define SCTP_PARTIAL_DELIVERY_EVENT SCTP_PARTIAL_DELIVERY_EVENT 5801b866434SDaniel Borkmann SCTP_ADAPTATION_INDICATION, 5811b866434SDaniel Borkmann #define SCTP_ADAPTATION_INDICATION SCTP_ADAPTATION_INDICATION 5821b866434SDaniel Borkmann SCTP_AUTHENTICATION_EVENT, 5831b866434SDaniel Borkmann #define SCTP_AUTHENTICATION_INDICATION SCTP_AUTHENTICATION_EVENT 5841b866434SDaniel Borkmann SCTP_SENDER_DRY_EVENT, 5851b866434SDaniel Borkmann #define SCTP_SENDER_DRY_EVENT SCTP_SENDER_DRY_EVENT 58635ea82d6SXin Long SCTP_STREAM_RESET_EVENT, 58735ea82d6SXin Long #define SCTP_STREAM_RESET_EVENT SCTP_STREAM_RESET_EVENT 588*c95129d1SXin Long SCTP_ASSOC_RESET_EVENT, 589*c95129d1SXin Long #define SCTP_ASSOC_RESET_EVENT SCTP_ASSOC_RESET_EVENT 5901b866434SDaniel Borkmann }; 5911b866434SDaniel Borkmann 5921b866434SDaniel Borkmann /* Notification error codes used to fill up the error fields in some 5931b866434SDaniel Borkmann * notifications. 5941b866434SDaniel Borkmann * SCTP_PEER_ADDRESS_CHAGE : spc_error 5951b866434SDaniel Borkmann * SCTP_ASSOC_CHANGE : sac_error 5961b866434SDaniel Borkmann * These names should be potentially included in the draft 04 of the SCTP 5971b866434SDaniel Borkmann * sockets API specification. 5981b866434SDaniel Borkmann */ 5991b866434SDaniel Borkmann typedef enum sctp_sn_error { 6001b866434SDaniel Borkmann SCTP_FAILED_THRESHOLD, 6011b866434SDaniel Borkmann SCTP_RECEIVED_SACK, 6021b866434SDaniel Borkmann SCTP_HEARTBEAT_SUCCESS, 6031b866434SDaniel Borkmann SCTP_RESPONSE_TO_USER_REQ, 6041b866434SDaniel Borkmann SCTP_INTERNAL_ERROR, 6051b866434SDaniel Borkmann SCTP_SHUTDOWN_GUARD_EXPIRES, 6061b866434SDaniel Borkmann SCTP_PEER_FAULTY, 6071b866434SDaniel Borkmann } sctp_sn_error_t; 6081b866434SDaniel Borkmann 6091b866434SDaniel Borkmann /* 6101b866434SDaniel Borkmann * 7.1.1 Retransmission Timeout Parameters (SCTP_RTOINFO) 6111b866434SDaniel Borkmann * 6121b866434SDaniel Borkmann * The protocol parameters used to initialize and bound retransmission 6131b866434SDaniel Borkmann * timeout (RTO) are tunable. See [SCTP] for more information on how 6141b866434SDaniel Borkmann * these parameters are used in RTO calculation. 6151b866434SDaniel Borkmann */ 6161b866434SDaniel Borkmann struct sctp_rtoinfo { 6171b866434SDaniel Borkmann sctp_assoc_t srto_assoc_id; 6181b866434SDaniel Borkmann __u32 srto_initial; 6191b866434SDaniel Borkmann __u32 srto_max; 6201b866434SDaniel Borkmann __u32 srto_min; 6211b866434SDaniel Borkmann }; 6221b866434SDaniel Borkmann 6231b866434SDaniel Borkmann /* 6241b866434SDaniel Borkmann * 7.1.2 Association Parameters (SCTP_ASSOCINFO) 6251b866434SDaniel Borkmann * 6261b866434SDaniel Borkmann * This option is used to both examine and set various association and 6271b866434SDaniel Borkmann * endpoint parameters. 6281b866434SDaniel Borkmann */ 6291b866434SDaniel Borkmann struct sctp_assocparams { 6301b866434SDaniel Borkmann sctp_assoc_t sasoc_assoc_id; 6311b866434SDaniel Borkmann __u16 sasoc_asocmaxrxt; 6321b866434SDaniel Borkmann __u16 sasoc_number_peer_destinations; 6331b866434SDaniel Borkmann __u32 sasoc_peer_rwnd; 6341b866434SDaniel Borkmann __u32 sasoc_local_rwnd; 6351b866434SDaniel Borkmann __u32 sasoc_cookie_life; 6361b866434SDaniel Borkmann }; 6371b866434SDaniel Borkmann 6381b866434SDaniel Borkmann /* 6391b866434SDaniel Borkmann * 7.1.9 Set Peer Primary Address (SCTP_SET_PEER_PRIMARY_ADDR) 6401b866434SDaniel Borkmann * 6411b866434SDaniel Borkmann * Requests that the peer mark the enclosed address as the association 6421b866434SDaniel Borkmann * primary. The enclosed address must be one of the association's 6431b866434SDaniel Borkmann * locally bound addresses. The following structure is used to make a 6441b866434SDaniel Borkmann * set primary request: 6451b866434SDaniel Borkmann */ 6461b866434SDaniel Borkmann struct sctp_setpeerprim { 6471b866434SDaniel Borkmann sctp_assoc_t sspp_assoc_id; 6481b866434SDaniel Borkmann struct sockaddr_storage sspp_addr; 6491b866434SDaniel Borkmann } __attribute__((packed, aligned(4))); 6501b866434SDaniel Borkmann 6511b866434SDaniel Borkmann /* 6521b866434SDaniel Borkmann * 7.1.10 Set Primary Address (SCTP_PRIMARY_ADDR) 6531b866434SDaniel Borkmann * 6541b866434SDaniel Borkmann * Requests that the local SCTP stack use the enclosed peer address as 6551b866434SDaniel Borkmann * the association primary. The enclosed address must be one of the 6561b866434SDaniel Borkmann * association peer's addresses. The following structure is used to 6571b866434SDaniel Borkmann * make a set peer primary request: 6581b866434SDaniel Borkmann */ 6591b866434SDaniel Borkmann struct sctp_prim { 6601b866434SDaniel Borkmann sctp_assoc_t ssp_assoc_id; 6611b866434SDaniel Borkmann struct sockaddr_storage ssp_addr; 6621b866434SDaniel Borkmann } __attribute__((packed, aligned(4))); 6631b866434SDaniel Borkmann 6641b866434SDaniel Borkmann /* For backward compatibility use, define the old name too */ 6651b866434SDaniel Borkmann #define sctp_setprim sctp_prim 6661b866434SDaniel Borkmann 6671b866434SDaniel Borkmann /* 6681b866434SDaniel Borkmann * 7.1.11 Set Adaptation Layer Indicator (SCTP_ADAPTATION_LAYER) 6691b866434SDaniel Borkmann * 6701b866434SDaniel Borkmann * Requests that the local endpoint set the specified Adaptation Layer 6711b866434SDaniel Borkmann * Indication parameter for all future INIT and INIT-ACK exchanges. 6721b866434SDaniel Borkmann */ 6731b866434SDaniel Borkmann struct sctp_setadaptation { 6741b866434SDaniel Borkmann __u32 ssb_adaptation_ind; 6751b866434SDaniel Borkmann }; 6761b866434SDaniel Borkmann 6771b866434SDaniel Borkmann /* 6781b866434SDaniel Borkmann * 7.1.13 Peer Address Parameters (SCTP_PEER_ADDR_PARAMS) 6791b866434SDaniel Borkmann * 6801b866434SDaniel Borkmann * Applications can enable or disable heartbeats for any peer address 6811b866434SDaniel Borkmann * of an association, modify an address's heartbeat interval, force a 6821b866434SDaniel Borkmann * heartbeat to be sent immediately, and adjust the address's maximum 6831b866434SDaniel Borkmann * number of retransmissions sent before an address is considered 6841b866434SDaniel Borkmann * unreachable. The following structure is used to access and modify an 6851b866434SDaniel Borkmann * address's parameters: 6861b866434SDaniel Borkmann */ 6871b866434SDaniel Borkmann enum sctp_spp_flags { 6881b866434SDaniel Borkmann SPP_HB_ENABLE = 1<<0, /*Enable heartbeats*/ 6891b866434SDaniel Borkmann SPP_HB_DISABLE = 1<<1, /*Disable heartbeats*/ 6901b866434SDaniel Borkmann SPP_HB = SPP_HB_ENABLE | SPP_HB_DISABLE, 6911b866434SDaniel Borkmann SPP_HB_DEMAND = 1<<2, /*Send heartbeat immediately*/ 6921b866434SDaniel Borkmann SPP_PMTUD_ENABLE = 1<<3, /*Enable PMTU discovery*/ 6931b866434SDaniel Borkmann SPP_PMTUD_DISABLE = 1<<4, /*Disable PMTU discovery*/ 6941b866434SDaniel Borkmann SPP_PMTUD = SPP_PMTUD_ENABLE | SPP_PMTUD_DISABLE, 6951b866434SDaniel Borkmann SPP_SACKDELAY_ENABLE = 1<<5, /*Enable SACK*/ 6961b866434SDaniel Borkmann SPP_SACKDELAY_DISABLE = 1<<6, /*Disable SACK*/ 6971b866434SDaniel Borkmann SPP_SACKDELAY = SPP_SACKDELAY_ENABLE | SPP_SACKDELAY_DISABLE, 6981b866434SDaniel Borkmann SPP_HB_TIME_IS_ZERO = 1<<7, /* Set HB delay to 0 */ 6991b866434SDaniel Borkmann }; 7001b866434SDaniel Borkmann 7011b866434SDaniel Borkmann struct sctp_paddrparams { 7021b866434SDaniel Borkmann sctp_assoc_t spp_assoc_id; 7031b866434SDaniel Borkmann struct sockaddr_storage spp_address; 7041b866434SDaniel Borkmann __u32 spp_hbinterval; 7051b866434SDaniel Borkmann __u16 spp_pathmaxrxt; 7061b866434SDaniel Borkmann __u32 spp_pathmtu; 7071b866434SDaniel Borkmann __u32 spp_sackdelay; 7081b866434SDaniel Borkmann __u32 spp_flags; 7091b866434SDaniel Borkmann } __attribute__((packed, aligned(4))); 7101b866434SDaniel Borkmann 7111b866434SDaniel Borkmann /* 7121b866434SDaniel Borkmann * 7.1.18. Add a chunk that must be authenticated (SCTP_AUTH_CHUNK) 7131b866434SDaniel Borkmann * 7141b866434SDaniel Borkmann * This set option adds a chunk type that the user is requesting to be 7151b866434SDaniel Borkmann * received only in an authenticated way. Changes to the list of chunks 7161b866434SDaniel Borkmann * will only effect future associations on the socket. 7171b866434SDaniel Borkmann */ 7181b866434SDaniel Borkmann struct sctp_authchunk { 7191b866434SDaniel Borkmann __u8 sauth_chunk; 7201b866434SDaniel Borkmann }; 7211b866434SDaniel Borkmann 7221b866434SDaniel Borkmann /* 7231b866434SDaniel Borkmann * 7.1.19. Get or set the list of supported HMAC Identifiers (SCTP_HMAC_IDENT) 7241b866434SDaniel Borkmann * 7251b866434SDaniel Borkmann * This option gets or sets the list of HMAC algorithms that the local 7261b866434SDaniel Borkmann * endpoint requires the peer to use. 7271b866434SDaniel Borkmann */ 7281b866434SDaniel Borkmann #ifndef __KERNEL__ 7291b866434SDaniel Borkmann /* This here is only used by user space as is. It might not be a good idea 7301b866434SDaniel Borkmann * to export/reveal the whole structure with reserved fields etc. 7311b866434SDaniel Borkmann */ 7321b866434SDaniel Borkmann enum { 7331b866434SDaniel Borkmann SCTP_AUTH_HMAC_ID_SHA1 = 1, 7341b866434SDaniel Borkmann SCTP_AUTH_HMAC_ID_SHA256 = 3, 7351b866434SDaniel Borkmann }; 7361b866434SDaniel Borkmann #endif 7371b866434SDaniel Borkmann 7381b866434SDaniel Borkmann struct sctp_hmacalgo { 7391b866434SDaniel Borkmann __u32 shmac_num_idents; 7401b866434SDaniel Borkmann __u16 shmac_idents[]; 7411b866434SDaniel Borkmann }; 7421b866434SDaniel Borkmann 7431b866434SDaniel Borkmann /* Sadly, user and kernel space have different names for 7441b866434SDaniel Borkmann * this structure member, so this is to not break anything. 7451b866434SDaniel Borkmann */ 7461b866434SDaniel Borkmann #define shmac_number_of_idents shmac_num_idents 7471b866434SDaniel Borkmann 7481b866434SDaniel Borkmann /* 7491b866434SDaniel Borkmann * 7.1.20. Set a shared key (SCTP_AUTH_KEY) 7501b866434SDaniel Borkmann * 7511b866434SDaniel Borkmann * This option will set a shared secret key which is used to build an 7521b866434SDaniel Borkmann * association shared key. 7531b866434SDaniel Borkmann */ 7541b866434SDaniel Borkmann struct sctp_authkey { 7551b866434SDaniel Borkmann sctp_assoc_t sca_assoc_id; 7561b866434SDaniel Borkmann __u16 sca_keynumber; 7571b866434SDaniel Borkmann __u16 sca_keylength; 7581b866434SDaniel Borkmann __u8 sca_key[]; 7591b866434SDaniel Borkmann }; 7601b866434SDaniel Borkmann 7611b866434SDaniel Borkmann /* 7621b866434SDaniel Borkmann * 7.1.21. Get or set the active shared key (SCTP_AUTH_ACTIVE_KEY) 7631b866434SDaniel Borkmann * 7641b866434SDaniel Borkmann * This option will get or set the active shared key to be used to build 7651b866434SDaniel Borkmann * the association shared key. 7661b866434SDaniel Borkmann */ 7671b866434SDaniel Borkmann 7681b866434SDaniel Borkmann struct sctp_authkeyid { 7691b866434SDaniel Borkmann sctp_assoc_t scact_assoc_id; 7701b866434SDaniel Borkmann __u16 scact_keynumber; 7711b866434SDaniel Borkmann }; 7721b866434SDaniel Borkmann 7731b866434SDaniel Borkmann 7741b866434SDaniel Borkmann /* 7751b866434SDaniel Borkmann * 7.1.23. Get or set delayed ack timer (SCTP_DELAYED_SACK) 7761b866434SDaniel Borkmann * 7771b866434SDaniel Borkmann * This option will effect the way delayed acks are performed. This 7781b866434SDaniel Borkmann * option allows you to get or set the delayed ack time, in 7791b866434SDaniel Borkmann * milliseconds. It also allows changing the delayed ack frequency. 7801b866434SDaniel Borkmann * Changing the frequency to 1 disables the delayed sack algorithm. If 7811b866434SDaniel Borkmann * the assoc_id is 0, then this sets or gets the endpoints default 7821b866434SDaniel Borkmann * values. If the assoc_id field is non-zero, then the set or get 7831b866434SDaniel Borkmann * effects the specified association for the one to many model (the 7841b866434SDaniel Borkmann * assoc_id field is ignored by the one to one model). Note that if 7851b866434SDaniel Borkmann * sack_delay or sack_freq are 0 when setting this option, then the 7861b866434SDaniel Borkmann * current values will remain unchanged. 7871b866434SDaniel Borkmann */ 7881b866434SDaniel Borkmann struct sctp_sack_info { 7891b866434SDaniel Borkmann sctp_assoc_t sack_assoc_id; 7901b866434SDaniel Borkmann uint32_t sack_delay; 7911b866434SDaniel Borkmann uint32_t sack_freq; 7921b866434SDaniel Borkmann }; 7931b866434SDaniel Borkmann 7941b866434SDaniel Borkmann struct sctp_assoc_value { 7951b866434SDaniel Borkmann sctp_assoc_t assoc_id; 7961b866434SDaniel Borkmann uint32_t assoc_value; 7971b866434SDaniel Borkmann }; 7981b866434SDaniel Borkmann 7991b866434SDaniel Borkmann /* 8001b866434SDaniel Borkmann * 7.2.2 Peer Address Information 8011b866434SDaniel Borkmann * 8021b866434SDaniel Borkmann * Applications can retrieve information about a specific peer address 8031b866434SDaniel Borkmann * of an association, including its reachability state, congestion 8041b866434SDaniel Borkmann * window, and retransmission timer values. This information is 8051b866434SDaniel Borkmann * read-only. The following structure is used to access this 8061b866434SDaniel Borkmann * information: 8071b866434SDaniel Borkmann */ 8081b866434SDaniel Borkmann struct sctp_paddrinfo { 8091b866434SDaniel Borkmann sctp_assoc_t spinfo_assoc_id; 8101b866434SDaniel Borkmann struct sockaddr_storage spinfo_address; 8111b866434SDaniel Borkmann __s32 spinfo_state; 8121b866434SDaniel Borkmann __u32 spinfo_cwnd; 8131b866434SDaniel Borkmann __u32 spinfo_srtt; 8141b866434SDaniel Borkmann __u32 spinfo_rto; 8151b866434SDaniel Borkmann __u32 spinfo_mtu; 8161b866434SDaniel Borkmann } __attribute__((packed, aligned(4))); 8171b866434SDaniel Borkmann 8181b866434SDaniel Borkmann /* Peer addresses's state. */ 8191b866434SDaniel Borkmann /* UNKNOWN: Peer address passed by the upper layer in sendmsg or connect[x] 8201b866434SDaniel Borkmann * calls. 8211b866434SDaniel Borkmann * UNCONFIRMED: Peer address received in INIT/INIT-ACK address parameters. 8221b866434SDaniel Borkmann * Not yet confirmed by a heartbeat and not available for data 8231b866434SDaniel Borkmann * transfers. 8241b866434SDaniel Borkmann * ACTIVE : Peer address confirmed, active and available for data transfers. 8251b866434SDaniel Borkmann * INACTIVE: Peer address inactive and not available for data transfers. 8261b866434SDaniel Borkmann */ 8271b866434SDaniel Borkmann enum sctp_spinfo_state { 8281b866434SDaniel Borkmann SCTP_INACTIVE, 8291b866434SDaniel Borkmann SCTP_PF, 8301b866434SDaniel Borkmann SCTP_ACTIVE, 8311b866434SDaniel Borkmann SCTP_UNCONFIRMED, 8321b866434SDaniel Borkmann SCTP_UNKNOWN = 0xffff /* Value used for transport state unknown */ 8331b866434SDaniel Borkmann }; 8341b866434SDaniel Borkmann 8351b866434SDaniel Borkmann /* 8361b866434SDaniel Borkmann * 7.2.1 Association Status (SCTP_STATUS) 8371b866434SDaniel Borkmann * 8381b866434SDaniel Borkmann * Applications can retrieve current status information about an 8391b866434SDaniel Borkmann * association, including association state, peer receiver window size, 8401b866434SDaniel Borkmann * number of unacked data chunks, and number of data chunks pending 8411b866434SDaniel Borkmann * receipt. This information is read-only. The following structure is 8421b866434SDaniel Borkmann * used to access this information: 8431b866434SDaniel Borkmann */ 8441b866434SDaniel Borkmann struct sctp_status { 8451b866434SDaniel Borkmann sctp_assoc_t sstat_assoc_id; 8461b866434SDaniel Borkmann __s32 sstat_state; 8471b866434SDaniel Borkmann __u32 sstat_rwnd; 8481b866434SDaniel Borkmann __u16 sstat_unackdata; 8491b866434SDaniel Borkmann __u16 sstat_penddata; 8501b866434SDaniel Borkmann __u16 sstat_instrms; 8511b866434SDaniel Borkmann __u16 sstat_outstrms; 8521b866434SDaniel Borkmann __u32 sstat_fragmentation_point; 8531b866434SDaniel Borkmann struct sctp_paddrinfo sstat_primary; 8541b866434SDaniel Borkmann }; 8551b866434SDaniel Borkmann 8561b866434SDaniel Borkmann /* 8571b866434SDaniel Borkmann * 7.2.3. Get the list of chunks the peer requires to be authenticated 8581b866434SDaniel Borkmann * (SCTP_PEER_AUTH_CHUNKS) 8591b866434SDaniel Borkmann * 8601b866434SDaniel Borkmann * This option gets a list of chunks for a specified association that 8611b866434SDaniel Borkmann * the peer requires to be received authenticated only. 8621b866434SDaniel Borkmann */ 8631b866434SDaniel Borkmann struct sctp_authchunks { 8641b866434SDaniel Borkmann sctp_assoc_t gauth_assoc_id; 8651b866434SDaniel Borkmann __u32 gauth_number_of_chunks; 8661b866434SDaniel Borkmann uint8_t gauth_chunks[]; 8671b866434SDaniel Borkmann }; 8681b866434SDaniel Borkmann 8691b866434SDaniel Borkmann /* The broken spelling has been released already in lksctp-tools header, 8701b866434SDaniel Borkmann * so don't break anyone, now that it's fixed. 8711b866434SDaniel Borkmann */ 8721b866434SDaniel Borkmann #define guth_number_of_chunks gauth_number_of_chunks 8731b866434SDaniel Borkmann 8741b866434SDaniel Borkmann /* Association states. */ 8751b866434SDaniel Borkmann enum sctp_sstat_state { 8761b866434SDaniel Borkmann SCTP_EMPTY = 0, 8771b866434SDaniel Borkmann SCTP_CLOSED = 1, 8781b866434SDaniel Borkmann SCTP_COOKIE_WAIT = 2, 8791b866434SDaniel Borkmann SCTP_COOKIE_ECHOED = 3, 8801b866434SDaniel Borkmann SCTP_ESTABLISHED = 4, 8811b866434SDaniel Borkmann SCTP_SHUTDOWN_PENDING = 5, 8821b866434SDaniel Borkmann SCTP_SHUTDOWN_SENT = 6, 8831b866434SDaniel Borkmann SCTP_SHUTDOWN_RECEIVED = 7, 8841b866434SDaniel Borkmann SCTP_SHUTDOWN_ACK_SENT = 8, 8851b866434SDaniel Borkmann }; 8861b866434SDaniel Borkmann 8871b866434SDaniel Borkmann /* 8881b866434SDaniel Borkmann * 8.2.6. Get the Current Identifiers of Associations 8891b866434SDaniel Borkmann * (SCTP_GET_ASSOC_ID_LIST) 8901b866434SDaniel Borkmann * 8911b866434SDaniel Borkmann * This option gets the current list of SCTP association identifiers of 8921b866434SDaniel Borkmann * the SCTP associations handled by a one-to-many style socket. 8931b866434SDaniel Borkmann */ 8941b866434SDaniel Borkmann struct sctp_assoc_ids { 8951b866434SDaniel Borkmann __u32 gaids_number_of_ids; 8961b866434SDaniel Borkmann sctp_assoc_t gaids_assoc_id[]; 8971b866434SDaniel Borkmann }; 8981b866434SDaniel Borkmann 8991b866434SDaniel Borkmann /* 9001b866434SDaniel Borkmann * 8.3, 8.5 get all peer/local addresses in an association. 9011b866434SDaniel Borkmann * This parameter struct is used by SCTP_GET_PEER_ADDRS and 9021b866434SDaniel Borkmann * SCTP_GET_LOCAL_ADDRS socket options used internally to implement 9031b866434SDaniel Borkmann * sctp_getpaddrs() and sctp_getladdrs() API. 9041b866434SDaniel Borkmann */ 9051b866434SDaniel Borkmann struct sctp_getaddrs_old { 9061b866434SDaniel Borkmann sctp_assoc_t assoc_id; 9071b866434SDaniel Borkmann int addr_num; 9081b866434SDaniel Borkmann #ifdef __KERNEL__ 9091b866434SDaniel Borkmann struct sockaddr __user *addrs; 9101b866434SDaniel Borkmann #else 9111b866434SDaniel Borkmann struct sockaddr *addrs; 9121b866434SDaniel Borkmann #endif 9131b866434SDaniel Borkmann }; 9141b866434SDaniel Borkmann 9151b866434SDaniel Borkmann struct sctp_getaddrs { 9161b866434SDaniel Borkmann sctp_assoc_t assoc_id; /*input*/ 9171b866434SDaniel Borkmann __u32 addr_num; /*output*/ 9181b866434SDaniel Borkmann __u8 addrs[0]; /*output, variable size*/ 9191b866434SDaniel Borkmann }; 9201b866434SDaniel Borkmann 9211b866434SDaniel Borkmann /* A socket user request obtained via SCTP_GET_ASSOC_STATS that retrieves 9221b866434SDaniel Borkmann * association stats. All stats are counts except sas_maxrto and 9231b866434SDaniel Borkmann * sas_obs_rto_ipaddr. maxrto is the max observed rto + transport since 9241b866434SDaniel Borkmann * the last call. Will return 0 when RTO was not update since last call 9251b866434SDaniel Borkmann */ 9261b866434SDaniel Borkmann struct sctp_assoc_stats { 9271b866434SDaniel Borkmann sctp_assoc_t sas_assoc_id; /* Input */ 9281b866434SDaniel Borkmann /* Transport of observed max RTO */ 9291b866434SDaniel Borkmann struct sockaddr_storage sas_obs_rto_ipaddr; 9301b866434SDaniel Borkmann __u64 sas_maxrto; /* Maximum Observed RTO for period */ 9311b866434SDaniel Borkmann __u64 sas_isacks; /* SACKs received */ 9321b866434SDaniel Borkmann __u64 sas_osacks; /* SACKs sent */ 9331b866434SDaniel Borkmann __u64 sas_opackets; /* Packets sent */ 9341b866434SDaniel Borkmann __u64 sas_ipackets; /* Packets received */ 9351b866434SDaniel Borkmann __u64 sas_rtxchunks; /* Retransmitted Chunks */ 9361b866434SDaniel Borkmann __u64 sas_outofseqtsns;/* TSN received > next expected */ 9371b866434SDaniel Borkmann __u64 sas_idupchunks; /* Dups received (ordered+unordered) */ 9381b866434SDaniel Borkmann __u64 sas_gapcnt; /* Gap Acknowledgements Received */ 9391b866434SDaniel Borkmann __u64 sas_ouodchunks; /* Unordered data chunks sent */ 9401b866434SDaniel Borkmann __u64 sas_iuodchunks; /* Unordered data chunks received */ 9411b866434SDaniel Borkmann __u64 sas_oodchunks; /* Ordered data chunks sent */ 9421b866434SDaniel Borkmann __u64 sas_iodchunks; /* Ordered data chunks received */ 9431b866434SDaniel Borkmann __u64 sas_octrlchunks; /* Control chunks sent */ 9441b866434SDaniel Borkmann __u64 sas_ictrlchunks; /* Control chunks received */ 9451b866434SDaniel Borkmann }; 9461b866434SDaniel Borkmann 9471b866434SDaniel Borkmann /* 9481b866434SDaniel Borkmann * 8.1 sctp_bindx() 9491b866434SDaniel Borkmann * 9501b866434SDaniel Borkmann * The flags parameter is formed from the bitwise OR of zero or more of the 9511b866434SDaniel Borkmann * following currently defined flags: 9521b866434SDaniel Borkmann */ 9531b866434SDaniel Borkmann #define SCTP_BINDX_ADD_ADDR 0x01 9541b866434SDaniel Borkmann #define SCTP_BINDX_REM_ADDR 0x02 9551b866434SDaniel Borkmann 9561b866434SDaniel Borkmann /* This is the structure that is passed as an argument(optval) to 9571b866434SDaniel Borkmann * getsockopt(SCTP_SOCKOPT_PEELOFF). 9581b866434SDaniel Borkmann */ 9591b866434SDaniel Borkmann typedef struct { 9601b866434SDaniel Borkmann sctp_assoc_t associd; 9611b866434SDaniel Borkmann int sd; 9621b866434SDaniel Borkmann } sctp_peeloff_arg_t; 9631b866434SDaniel Borkmann 9641b866434SDaniel Borkmann /* 9651b866434SDaniel Borkmann * Peer Address Thresholds socket option 9661b866434SDaniel Borkmann */ 9671b866434SDaniel Borkmann struct sctp_paddrthlds { 9681b866434SDaniel Borkmann sctp_assoc_t spt_assoc_id; 9691b866434SDaniel Borkmann struct sockaddr_storage spt_address; 9701b866434SDaniel Borkmann __u16 spt_pathmaxrxt; 9711b866434SDaniel Borkmann __u16 spt_pathpfthld; 9721b866434SDaniel Borkmann }; 9731b866434SDaniel Borkmann 974826d253dSXin Long /* 975826d253dSXin Long * Socket Option for Getting the Association/Stream-Specific PR-SCTP Status 976826d253dSXin Long */ 977826d253dSXin Long struct sctp_prstatus { 978826d253dSXin Long sctp_assoc_t sprstat_assoc_id; 979826d253dSXin Long __u16 sprstat_sid; 980826d253dSXin Long __u16 sprstat_policy; 981826d253dSXin Long __u64 sprstat_abandoned_unsent; 982826d253dSXin Long __u64 sprstat_abandoned_sent; 983826d253dSXin Long }; 984826d253dSXin Long 985f959fb44SXin Long struct sctp_default_prinfo { 986f959fb44SXin Long sctp_assoc_t pr_assoc_id; 987f959fb44SXin Long __u32 pr_value; 988f959fb44SXin Long __u16 pr_policy; 989f959fb44SXin Long }; 990f959fb44SXin Long 991dca3f53cSPhil Sutter struct sctp_info { 992dca3f53cSPhil Sutter __u32 sctpi_tag; 993dca3f53cSPhil Sutter __u32 sctpi_state; 994dca3f53cSPhil Sutter __u32 sctpi_rwnd; 995dca3f53cSPhil Sutter __u16 sctpi_unackdata; 996dca3f53cSPhil Sutter __u16 sctpi_penddata; 997dca3f53cSPhil Sutter __u16 sctpi_instrms; 998dca3f53cSPhil Sutter __u16 sctpi_outstrms; 999dca3f53cSPhil Sutter __u32 sctpi_fragmentation_point; 1000dca3f53cSPhil Sutter __u32 sctpi_inqueue; 1001dca3f53cSPhil Sutter __u32 sctpi_outqueue; 1002dca3f53cSPhil Sutter __u32 sctpi_overall_error; 1003dca3f53cSPhil Sutter __u32 sctpi_max_burst; 1004dca3f53cSPhil Sutter __u32 sctpi_maxseg; 1005dca3f53cSPhil Sutter __u32 sctpi_peer_rwnd; 1006dca3f53cSPhil Sutter __u32 sctpi_peer_tag; 1007dca3f53cSPhil Sutter __u8 sctpi_peer_capable; 1008dca3f53cSPhil Sutter __u8 sctpi_peer_sack; 1009dca3f53cSPhil Sutter __u16 __reserved1; 1010dca3f53cSPhil Sutter 1011dca3f53cSPhil Sutter /* assoc status info */ 1012dca3f53cSPhil Sutter __u64 sctpi_isacks; 1013dca3f53cSPhil Sutter __u64 sctpi_osacks; 1014dca3f53cSPhil Sutter __u64 sctpi_opackets; 1015dca3f53cSPhil Sutter __u64 sctpi_ipackets; 1016dca3f53cSPhil Sutter __u64 sctpi_rtxchunks; 1017dca3f53cSPhil Sutter __u64 sctpi_outofseqtsns; 1018dca3f53cSPhil Sutter __u64 sctpi_idupchunks; 1019dca3f53cSPhil Sutter __u64 sctpi_gapcnt; 1020dca3f53cSPhil Sutter __u64 sctpi_ouodchunks; 1021dca3f53cSPhil Sutter __u64 sctpi_iuodchunks; 1022dca3f53cSPhil Sutter __u64 sctpi_oodchunks; 1023dca3f53cSPhil Sutter __u64 sctpi_iodchunks; 1024dca3f53cSPhil Sutter __u64 sctpi_octrlchunks; 1025dca3f53cSPhil Sutter __u64 sctpi_ictrlchunks; 1026dca3f53cSPhil Sutter 1027dca3f53cSPhil Sutter /* primary transport info */ 1028dca3f53cSPhil Sutter struct sockaddr_storage sctpi_p_address; 1029dca3f53cSPhil Sutter __s32 sctpi_p_state; 1030dca3f53cSPhil Sutter __u32 sctpi_p_cwnd; 1031dca3f53cSPhil Sutter __u32 sctpi_p_srtt; 1032dca3f53cSPhil Sutter __u32 sctpi_p_rto; 1033dca3f53cSPhil Sutter __u32 sctpi_p_hbinterval; 1034dca3f53cSPhil Sutter __u32 sctpi_p_pathmaxrxt; 1035dca3f53cSPhil Sutter __u32 sctpi_p_sackdelay; 1036dca3f53cSPhil Sutter __u32 sctpi_p_sackfreq; 1037dca3f53cSPhil Sutter __u32 sctpi_p_ssthresh; 1038dca3f53cSPhil Sutter __u32 sctpi_p_partial_bytes_acked; 1039dca3f53cSPhil Sutter __u32 sctpi_p_flight_size; 1040dca3f53cSPhil Sutter __u16 sctpi_p_error; 1041dca3f53cSPhil Sutter __u16 __reserved2; 1042dca3f53cSPhil Sutter 1043dca3f53cSPhil Sutter /* sctp sock info */ 1044dca3f53cSPhil Sutter __u32 sctpi_s_autoclose; 1045dca3f53cSPhil Sutter __u32 sctpi_s_adaptation_ind; 1046dca3f53cSPhil Sutter __u32 sctpi_s_pd_point; 1047dca3f53cSPhil Sutter __u8 sctpi_s_nodelay; 1048dca3f53cSPhil Sutter __u8 sctpi_s_disable_fragments; 1049dca3f53cSPhil Sutter __u8 sctpi_s_v4mapped; 1050dca3f53cSPhil Sutter __u8 sctpi_s_frag_interleave; 1051dca3f53cSPhil Sutter __u32 sctpi_s_type; 1052dca3f53cSPhil Sutter __u32 __reserved3; 1053dca3f53cSPhil Sutter }; 1054dca3f53cSPhil Sutter 10557f9d68acSXin Long struct sctp_reset_streams { 10567f9d68acSXin Long sctp_assoc_t srs_assoc_id; 10577f9d68acSXin Long uint16_t srs_flags; 10587f9d68acSXin Long uint16_t srs_number_streams; /* 0 == ALL */ 10597f9d68acSXin Long uint16_t srs_stream_list[]; /* list if srs_num_streams is not 0 */ 10607f9d68acSXin Long }; 10617f9d68acSXin Long 1062242bd2d5SXin Long struct sctp_add_streams { 1063242bd2d5SXin Long sctp_assoc_t sas_assoc_id; 1064242bd2d5SXin Long uint16_t sas_instrms; 1065242bd2d5SXin Long uint16_t sas_outstrms; 1066242bd2d5SXin Long }; 1067242bd2d5SXin Long 10681b866434SDaniel Borkmann #endif /* _UAPI_SCTP_H */ 1069