16f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu/* SCTP kernel Implementation: User API extensions. 289de9aa86469604a61fb72f8073f984442b8c011uid * 364a341fc42c967890a9fb5d8855568e23104bef6mridge * sctp.h 489de9aa86469604a61fb72f8073f984442b8c011uid * 564a341fc42c967890a9fb5d8855568e23104bef6mridge * Distributed under the terms of the LGPL v2.1 as described in 66f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * http://www.gnu.org/copyleft/lesser.txt 789de9aa86469604a61fb72f8073f984442b8c011uid * 864a341fc42c967890a9fb5d8855568e23104bef6mridge * This file is part of the user library that offers support for the 96f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * Linux Kernel SCTP Implementation. The main purpose of this 1064a341fc42c967890a9fb5d8855568e23104bef6mridge * code is to provide the SCTP Socket API mappings for user 1164a341fc42c967890a9fb5d8855568e23104bef6mridge * application to interface with SCTP in kernel. 1289de9aa86469604a61fb72f8073f984442b8c011uid * 1364a341fc42c967890a9fb5d8855568e23104bef6mridge * This header represents the structures and constants needed to support 1464a341fc42c967890a9fb5d8855568e23104bef6mridge * the SCTP Extension to the Sockets API. 1589de9aa86469604a61fb72f8073f984442b8c011uid * 1664a341fc42c967890a9fb5d8855568e23104bef6mridge * (C) Copyright IBM Corp. 2001, 2004 1764a341fc42c967890a9fb5d8855568e23104bef6mridge * Copyright (c) 1999-2000 Cisco, Inc. 1864a341fc42c967890a9fb5d8855568e23104bef6mridge * Copyright (c) 1999-2001 Motorola, Inc. 1989de9aa86469604a61fb72f8073f984442b8c011uid * 2089de9aa86469604a61fb72f8073f984442b8c011uid * Written or modified by: 2189de9aa86469604a61fb72f8073f984442b8c011uid * La Monte H.P. Yarroll <piggy@acm.org> 2289de9aa86469604a61fb72f8073f984442b8c011uid * R. Stewart <randall@sctp.chicago.il.us> 2389de9aa86469604a61fb72f8073f984442b8c011uid * K. Morneau <kmorneau@cisco.com> 2489de9aa86469604a61fb72f8073f984442b8c011uid * Q. Xie <qxie1@email.mot.com> 2589de9aa86469604a61fb72f8073f984442b8c011uid * Karl Knutson <karl@athena.chicago.il.us> 2689de9aa86469604a61fb72f8073f984442b8c011uid * Jon Grimm <jgrimm@austin.ibm.com> 2789de9aa86469604a61fb72f8073f984442b8c011uid * Daisy Chang <daisyc@us.ibm.com> 2889de9aa86469604a61fb72f8073f984442b8c011uid * Inaky Perez-Gonzalez <inaky.gonzalez@intel.com> 2989de9aa86469604a61fb72f8073f984442b8c011uid * Sridhar Samudrala <sri@us.ibm.com> 306f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * Vlad Yasevich <vladislav.yasevich@hp.com> 3189de9aa86469604a61fb72f8073f984442b8c011uid */ 3289de9aa86469604a61fb72f8073f984442b8c011uid 3389de9aa86469604a61fb72f8073f984442b8c011uid#ifndef __linux_sctp_h__ 3489de9aa86469604a61fb72f8073f984442b8c011uid#define __linux_sctp_h__ 3589de9aa86469604a61fb72f8073f984442b8c011uid 3689de9aa86469604a61fb72f8073f984442b8c011uid#include <stdint.h> 3789de9aa86469604a61fb72f8073f984442b8c011uid#include <linux/types.h> 3889de9aa86469604a61fb72f8073f984442b8c011uid#include <sys/socket.h> 3989de9aa86469604a61fb72f8073f984442b8c011uid 4064a341fc42c967890a9fb5d8855568e23104bef6mridge__BEGIN_DECLS 4164a341fc42c967890a9fb5d8855568e23104bef6mridge 4264a341fc42c967890a9fb5d8855568e23104bef6mridgetypedef __s32 sctp_assoc_t; 4389de9aa86469604a61fb72f8073f984442b8c011uid 4489de9aa86469604a61fb72f8073f984442b8c011uid/* Socket option layer for SCTP */ 4589de9aa86469604a61fb72f8073f984442b8c011uid#ifndef SOL_SCTP 4689de9aa86469604a61fb72f8073f984442b8c011uid#define SOL_SCTP 132 4789de9aa86469604a61fb72f8073f984442b8c011uid#endif 4889de9aa86469604a61fb72f8073f984442b8c011uid 4989de9aa86469604a61fb72f8073f984442b8c011uid#ifndef IPPROTO_SCTP 5089de9aa86469604a61fb72f8073f984442b8c011uid#define IPPROTO_SCTP 132 5189de9aa86469604a61fb72f8073f984442b8c011uid#endif 5289de9aa86469604a61fb72f8073f984442b8c011uid 5389de9aa86469604a61fb72f8073f984442b8c011uid/* 9. Preprocessor constants */ 5489de9aa86469604a61fb72f8073f984442b8c011uid#define HAVE_SCTP 5589de9aa86469604a61fb72f8073f984442b8c011uid#define HAVE_KERNEL_SCTP 5689de9aa86469604a61fb72f8073f984442b8c011uid#define HAVE_SCTP_MULTIBUF 5789de9aa86469604a61fb72f8073f984442b8c011uid#define HAVE_SCTP_NOCONNECT 5864a341fc42c967890a9fb5d8855568e23104bef6mridge#define HAVE_SCTP_PRSCTP 5964a341fc42c967890a9fb5d8855568e23104bef6mridge#define HAVE_SCTP_ADDIP 6064a341fc42c967890a9fb5d8855568e23104bef6mridge#define HAVE_SCTP_CANSET_PRIMARY 6189de9aa86469604a61fb72f8073f984442b8c011uid 6289de9aa86469604a61fb72f8073f984442b8c011uid/* The following symbols come from the Sockets API Extensions for 6389de9aa86469604a61fb72f8073f984442b8c011uid * SCTP <draft-ietf-tsvwg-sctpsocket-07.txt>. 6489de9aa86469604a61fb72f8073f984442b8c011uid */ 656f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_RTOINFO 0 666f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_ASSOCINFO 1 676f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_INITMSG 2 686f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_NODELAY 3 /* Get/set nodelay option. */ 696f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_AUTOCLOSE 4 706f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_SET_PEER_PRIMARY_ADDR 5 716f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_PRIMARY_ADDR 6 726f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_ADAPTATION_LAYER 7 736f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_DISABLE_FRAGMENTS 8 746f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_PEER_ADDR_PARAMS 9 756f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_DEFAULT_SEND_PARAM 10 766f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_EVENTS 11 776f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_I_WANT_MAPPED_V4_ADDR 12 /* Turn on/off mapped v4 addresses */ 786f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_MAXSEG 13 /* Get/set maximum fragment. */ 796f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_STATUS 14 806f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_GET_PEER_ADDR_INFO 15 816f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_DELAYED_ACK_TIME 16 826f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_DELAYED_ACK SCTP_DELAYED_ACK_TIME 836f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_DELAYED_SACK SCTP_DELAYED_ACK_TIME 846f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_CONTEXT 17 856f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_FRAGMENT_INTERLEAVE 18 866f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_PARTIAL_DELIVERY_POINT 19 /* Set/Get partial delivery point */ 876f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_MAX_BURST 20 /* Set/Get max burst */ 886f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_AUTH_CHUNK 21 /* Set only: add a chunk type to authenticate */ 896f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_HMAC_IDENT 22 906f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_AUTH_KEY 23 916f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_AUTH_ACTIVE_KEY 24 926f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_AUTH_DELETE_KEY 25 936f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_PEER_AUTH_CHUNKS 26 /* Read only */ 946f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_LOCAL_AUTH_CHUNKS 27 /* Read only */ 956f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_GET_ASSOC_NUMBER 28 /* Read only */ 966f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu 976f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu/* Internal Socket Options. Some of the sctp library functions are 986f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * implemented using these socket options. 996f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu */ 1006f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_SOCKOPT_BINDX_ADD 100 /* BINDX requests for adding addrs */ 1016f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_SOCKOPT_BINDX_REM 101 /* BINDX requests for removing addrs. */ 1026f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_SOCKOPT_PEELOFF 102 /* peel off association. */ 1036f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu/* Options 104-106 are deprecated and removed. Do not use this space */ 1046f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_SOCKOPT_CONNECTX_OLD 107 /* CONNECTX old requests. */ 1056f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_GET_PEER_ADDRS 108 /* Get all peer addresss. */ 1066f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_GET_LOCAL_ADDRS 109 /* Get all local addresss. */ 1076f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_SOCKOPT_CONNECTX 110 /* CONNECTX requests. */ 1086f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_SOCKOPT_CONNECTX3 111 /* CONNECTX requests (updated) */ 1096f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu 1106f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu/* SCTP socket option used to read per endpoint association statistics. */ 1116f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_GET_ASSOC_STATS 112 /* Read only */ 11289de9aa86469604a61fb72f8073f984442b8c011uid 11389de9aa86469604a61fb72f8073f984442b8c011uid/* 11489de9aa86469604a61fb72f8073f984442b8c011uid * 5.2.1 SCTP Initiation Structure (SCTP_INIT) 11589de9aa86469604a61fb72f8073f984442b8c011uid * 11689de9aa86469604a61fb72f8073f984442b8c011uid * This cmsghdr structure provides information for initializing new 11789de9aa86469604a61fb72f8073f984442b8c011uid * SCTP associations with sendmsg(). The SCTP_INITMSG socket option 11889de9aa86469604a61fb72f8073f984442b8c011uid * uses this same data structure. This structure is not used for 11989de9aa86469604a61fb72f8073f984442b8c011uid * recvmsg(). 12089de9aa86469604a61fb72f8073f984442b8c011uid * 12189de9aa86469604a61fb72f8073f984442b8c011uid * cmsg_level cmsg_type cmsg_data[] 12289de9aa86469604a61fb72f8073f984442b8c011uid * ------------ ------------ ---------------------- 12389de9aa86469604a61fb72f8073f984442b8c011uid * IPPROTO_SCTP SCTP_INIT struct sctp_initmsg 12489de9aa86469604a61fb72f8073f984442b8c011uid * 12589de9aa86469604a61fb72f8073f984442b8c011uid */ 12689de9aa86469604a61fb72f8073f984442b8c011uidstruct sctp_initmsg { 12789de9aa86469604a61fb72f8073f984442b8c011uid __u16 sinit_num_ostreams; 12889de9aa86469604a61fb72f8073f984442b8c011uid __u16 sinit_max_instreams; 12989de9aa86469604a61fb72f8073f984442b8c011uid __u16 sinit_max_attempts; 13089de9aa86469604a61fb72f8073f984442b8c011uid __u16 sinit_max_init_timeo; 13189de9aa86469604a61fb72f8073f984442b8c011uid}; 13289de9aa86469604a61fb72f8073f984442b8c011uid 13389de9aa86469604a61fb72f8073f984442b8c011uid/* 13489de9aa86469604a61fb72f8073f984442b8c011uid * 5.2.2 SCTP Header Information Structure (SCTP_SNDRCV) 13589de9aa86469604a61fb72f8073f984442b8c011uid * 13689de9aa86469604a61fb72f8073f984442b8c011uid * This cmsghdr structure specifies SCTP options for sendmsg() and 13789de9aa86469604a61fb72f8073f984442b8c011uid * describes SCTP header information about a received message through 13889de9aa86469604a61fb72f8073f984442b8c011uid * recvmsg(). 13989de9aa86469604a61fb72f8073f984442b8c011uid * 14089de9aa86469604a61fb72f8073f984442b8c011uid * cmsg_level cmsg_type cmsg_data[] 14189de9aa86469604a61fb72f8073f984442b8c011uid * ------------ ------------ ---------------------- 14289de9aa86469604a61fb72f8073f984442b8c011uid * IPPROTO_SCTP SCTP_SNDRCV struct sctp_sndrcvinfo 14389de9aa86469604a61fb72f8073f984442b8c011uid * 14489de9aa86469604a61fb72f8073f984442b8c011uid */ 14589de9aa86469604a61fb72f8073f984442b8c011uidstruct sctp_sndrcvinfo { 14689de9aa86469604a61fb72f8073f984442b8c011uid __u16 sinfo_stream; 14789de9aa86469604a61fb72f8073f984442b8c011uid __u16 sinfo_ssn; 14889de9aa86469604a61fb72f8073f984442b8c011uid __u16 sinfo_flags; 14989de9aa86469604a61fb72f8073f984442b8c011uid __u32 sinfo_ppid; 15089de9aa86469604a61fb72f8073f984442b8c011uid __u32 sinfo_context; 15189de9aa86469604a61fb72f8073f984442b8c011uid __u32 sinfo_timetolive; 15289de9aa86469604a61fb72f8073f984442b8c011uid __u32 sinfo_tsn; 15389de9aa86469604a61fb72f8073f984442b8c011uid __u32 sinfo_cumtsn; 15489de9aa86469604a61fb72f8073f984442b8c011uid sctp_assoc_t sinfo_assoc_id; 15589de9aa86469604a61fb72f8073f984442b8c011uid}; 15689de9aa86469604a61fb72f8073f984442b8c011uid 15789de9aa86469604a61fb72f8073f984442b8c011uid/* 15889de9aa86469604a61fb72f8073f984442b8c011uid * sinfo_flags: 16 bits (unsigned integer) 15989de9aa86469604a61fb72f8073f984442b8c011uid * 16089de9aa86469604a61fb72f8073f984442b8c011uid * This field may contain any of the following flags and is composed of 16189de9aa86469604a61fb72f8073f984442b8c011uid * a bitwise OR of these values. 16289de9aa86469604a61fb72f8073f984442b8c011uid */ 16389de9aa86469604a61fb72f8073f984442b8c011uid 16489de9aa86469604a61fb72f8073f984442b8c011uidenum sctp_sinfo_flags { 16564a341fc42c967890a9fb5d8855568e23104bef6mridge SCTP_UNORDERED = 1, /* Send/receive message unordered. */ 16664a341fc42c967890a9fb5d8855568e23104bef6mridge SCTP_ADDR_OVER = 2, /* Override the primary destination. */ 16764a341fc42c967890a9fb5d8855568e23104bef6mridge SCTP_ABORT=4, /* Send an ABORT message to the peer. */ 1686f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu SCTP_SACK_IMMEDIATELY = 8, /* SACK should be sent without delay */ 16937550cf5a86c7ca7424a2a318dd64e550f13f5dfChris Dearman SCTP_EOF=MSG_FIN, /* Initiate graceful shutdown process. */ 17089de9aa86469604a61fb72f8073f984442b8c011uid}; 17189de9aa86469604a61fb72f8073f984442b8c011uid 17289de9aa86469604a61fb72f8073f984442b8c011uid 17389de9aa86469604a61fb72f8073f984442b8c011uidtypedef union { 17489de9aa86469604a61fb72f8073f984442b8c011uid __u8 raw; 17589de9aa86469604a61fb72f8073f984442b8c011uid struct sctp_initmsg init; 17689de9aa86469604a61fb72f8073f984442b8c011uid struct sctp_sndrcvinfo sndrcv; 17789de9aa86469604a61fb72f8073f984442b8c011uid} sctp_cmsg_data_t; 17889de9aa86469604a61fb72f8073f984442b8c011uid 17989de9aa86469604a61fb72f8073f984442b8c011uid/* These are cmsg_types. */ 18089de9aa86469604a61fb72f8073f984442b8c011uidtypedef enum sctp_cmsg_type { 18189de9aa86469604a61fb72f8073f984442b8c011uid SCTP_INIT, /* 5.2.1 SCTP Initiation Structure */ 1826f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_INIT SCTP_INIT 18389de9aa86469604a61fb72f8073f984442b8c011uid SCTP_SNDRCV, /* 5.2.2 SCTP Header Information Structure */ 1846f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_SNDRCV SCTP_SNDRCV 18589de9aa86469604a61fb72f8073f984442b8c011uid} sctp_cmsg_t; 18689de9aa86469604a61fb72f8073f984442b8c011uid 18789de9aa86469604a61fb72f8073f984442b8c011uid 18889de9aa86469604a61fb72f8073f984442b8c011uid/* 18989de9aa86469604a61fb72f8073f984442b8c011uid * 5.3.1.1 SCTP_ASSOC_CHANGE 19089de9aa86469604a61fb72f8073f984442b8c011uid * 19189de9aa86469604a61fb72f8073f984442b8c011uid * Communication notifications inform the ULP that an SCTP association 19289de9aa86469604a61fb72f8073f984442b8c011uid * has either begun or ended. The identifier for a new association is 19389de9aa86469604a61fb72f8073f984442b8c011uid * provided by this notificaion. The notification information has the 19489de9aa86469604a61fb72f8073f984442b8c011uid * following format: 19589de9aa86469604a61fb72f8073f984442b8c011uid * 19689de9aa86469604a61fb72f8073f984442b8c011uid */ 19789de9aa86469604a61fb72f8073f984442b8c011uidstruct sctp_assoc_change { 19889de9aa86469604a61fb72f8073f984442b8c011uid __u16 sac_type; 19989de9aa86469604a61fb72f8073f984442b8c011uid __u16 sac_flags; 20089de9aa86469604a61fb72f8073f984442b8c011uid __u32 sac_length; 20189de9aa86469604a61fb72f8073f984442b8c011uid __u16 sac_state; 20289de9aa86469604a61fb72f8073f984442b8c011uid __u16 sac_error; 20389de9aa86469604a61fb72f8073f984442b8c011uid __u16 sac_outbound_streams; 20489de9aa86469604a61fb72f8073f984442b8c011uid __u16 sac_inbound_streams; 20589de9aa86469604a61fb72f8073f984442b8c011uid sctp_assoc_t sac_assoc_id; 2066f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u8 sac_info[0]; 20789de9aa86469604a61fb72f8073f984442b8c011uid}; 20889de9aa86469604a61fb72f8073f984442b8c011uid 20989de9aa86469604a61fb72f8073f984442b8c011uid/* 21089de9aa86469604a61fb72f8073f984442b8c011uid * sac_state: 32 bits (signed integer) 21189de9aa86469604a61fb72f8073f984442b8c011uid * 21289de9aa86469604a61fb72f8073f984442b8c011uid * This field holds one of a number of values that communicate the 21389de9aa86469604a61fb72f8073f984442b8c011uid * event that happened to the association. They include: 21489de9aa86469604a61fb72f8073f984442b8c011uid * 21589de9aa86469604a61fb72f8073f984442b8c011uid * Note: The following state names deviate from the API draft as 21689de9aa86469604a61fb72f8073f984442b8c011uid * the names clash too easily with other kernel symbols. 21789de9aa86469604a61fb72f8073f984442b8c011uid */ 21889de9aa86469604a61fb72f8073f984442b8c011uidenum sctp_sac_state { 21989de9aa86469604a61fb72f8073f984442b8c011uid SCTP_COMM_UP, 22089de9aa86469604a61fb72f8073f984442b8c011uid SCTP_COMM_LOST, 22189de9aa86469604a61fb72f8073f984442b8c011uid SCTP_RESTART, 22289de9aa86469604a61fb72f8073f984442b8c011uid SCTP_SHUTDOWN_COMP, 22389de9aa86469604a61fb72f8073f984442b8c011uid SCTP_CANT_STR_ASSOC, 22489de9aa86469604a61fb72f8073f984442b8c011uid}; 22589de9aa86469604a61fb72f8073f984442b8c011uid 22689de9aa86469604a61fb72f8073f984442b8c011uid/* 22789de9aa86469604a61fb72f8073f984442b8c011uid * 5.3.1.2 SCTP_PEER_ADDR_CHANGE 22889de9aa86469604a61fb72f8073f984442b8c011uid * 22989de9aa86469604a61fb72f8073f984442b8c011uid * When a destination address on a multi-homed peer encounters a change 23089de9aa86469604a61fb72f8073f984442b8c011uid * an interface details event is sent. The information has the 23189de9aa86469604a61fb72f8073f984442b8c011uid * following structure: 23289de9aa86469604a61fb72f8073f984442b8c011uid */ 23389de9aa86469604a61fb72f8073f984442b8c011uidstruct sctp_paddr_change { 23489de9aa86469604a61fb72f8073f984442b8c011uid __u16 spc_type; 23589de9aa86469604a61fb72f8073f984442b8c011uid __u16 spc_flags; 23689de9aa86469604a61fb72f8073f984442b8c011uid __u32 spc_length; 23789de9aa86469604a61fb72f8073f984442b8c011uid struct sockaddr_storage spc_aaddr; 23889de9aa86469604a61fb72f8073f984442b8c011uid int spc_state; 23989de9aa86469604a61fb72f8073f984442b8c011uid int spc_error; 24089de9aa86469604a61fb72f8073f984442b8c011uid sctp_assoc_t spc_assoc_id; 24164a341fc42c967890a9fb5d8855568e23104bef6mridge} __attribute__((packed, aligned(4))); 24289de9aa86469604a61fb72f8073f984442b8c011uid 24389de9aa86469604a61fb72f8073f984442b8c011uid/* 24489de9aa86469604a61fb72f8073f984442b8c011uid * spc_state: 32 bits (signed integer) 24589de9aa86469604a61fb72f8073f984442b8c011uid * 24689de9aa86469604a61fb72f8073f984442b8c011uid * This field holds one of a number of values that communicate the 24789de9aa86469604a61fb72f8073f984442b8c011uid * event that happened to the address. They include: 24889de9aa86469604a61fb72f8073f984442b8c011uid */ 24989de9aa86469604a61fb72f8073f984442b8c011uidenum sctp_spc_state { 25064a341fc42c967890a9fb5d8855568e23104bef6mridge SCTP_ADDR_AVAILABLE, 25189de9aa86469604a61fb72f8073f984442b8c011uid SCTP_ADDR_UNREACHABLE, 25289de9aa86469604a61fb72f8073f984442b8c011uid SCTP_ADDR_REMOVED, 25389de9aa86469604a61fb72f8073f984442b8c011uid SCTP_ADDR_ADDED, 25489de9aa86469604a61fb72f8073f984442b8c011uid SCTP_ADDR_MADE_PRIM, 2556f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu SCTP_ADDR_CONFIRMED, 25689de9aa86469604a61fb72f8073f984442b8c011uid}; 25789de9aa86469604a61fb72f8073f984442b8c011uid 25889de9aa86469604a61fb72f8073f984442b8c011uid 25989de9aa86469604a61fb72f8073f984442b8c011uid/* 26089de9aa86469604a61fb72f8073f984442b8c011uid * 5.3.1.3 SCTP_REMOTE_ERROR 26189de9aa86469604a61fb72f8073f984442b8c011uid * 26289de9aa86469604a61fb72f8073f984442b8c011uid * A remote peer may send an Operational Error message to its peer. 26389de9aa86469604a61fb72f8073f984442b8c011uid * This message indicates a variety of error conditions on an 26489de9aa86469604a61fb72f8073f984442b8c011uid * association. The entire error TLV as it appears on the wire is 26589de9aa86469604a61fb72f8073f984442b8c011uid * included in a SCTP_REMOTE_ERROR event. Please refer to the SCTP 26689de9aa86469604a61fb72f8073f984442b8c011uid * specification [SCTP] and any extensions for a list of possible 26789de9aa86469604a61fb72f8073f984442b8c011uid * error formats. SCTP error TLVs have the format: 26889de9aa86469604a61fb72f8073f984442b8c011uid */ 26989de9aa86469604a61fb72f8073f984442b8c011uidstruct sctp_remote_error { 27089de9aa86469604a61fb72f8073f984442b8c011uid __u16 sre_type; 27189de9aa86469604a61fb72f8073f984442b8c011uid __u16 sre_flags; 27289de9aa86469604a61fb72f8073f984442b8c011uid __u32 sre_length; 27389de9aa86469604a61fb72f8073f984442b8c011uid __u16 sre_error; 27489de9aa86469604a61fb72f8073f984442b8c011uid sctp_assoc_t sre_assoc_id; 27589de9aa86469604a61fb72f8073f984442b8c011uid __u8 sre_data[0]; 27689de9aa86469604a61fb72f8073f984442b8c011uid}; 27789de9aa86469604a61fb72f8073f984442b8c011uid 27889de9aa86469604a61fb72f8073f984442b8c011uid 27989de9aa86469604a61fb72f8073f984442b8c011uid/* 28089de9aa86469604a61fb72f8073f984442b8c011uid * 5.3.1.4 SCTP_SEND_FAILED 28189de9aa86469604a61fb72f8073f984442b8c011uid * 28289de9aa86469604a61fb72f8073f984442b8c011uid * If SCTP cannot deliver a message it may return the message as a 28389de9aa86469604a61fb72f8073f984442b8c011uid * notification. 28489de9aa86469604a61fb72f8073f984442b8c011uid */ 28589de9aa86469604a61fb72f8073f984442b8c011uidstruct sctp_send_failed { 28689de9aa86469604a61fb72f8073f984442b8c011uid __u16 ssf_type; 28789de9aa86469604a61fb72f8073f984442b8c011uid __u16 ssf_flags; 28889de9aa86469604a61fb72f8073f984442b8c011uid __u32 ssf_length; 28989de9aa86469604a61fb72f8073f984442b8c011uid __u32 ssf_error; 29089de9aa86469604a61fb72f8073f984442b8c011uid struct sctp_sndrcvinfo ssf_info; 29189de9aa86469604a61fb72f8073f984442b8c011uid sctp_assoc_t ssf_assoc_id; 29289de9aa86469604a61fb72f8073f984442b8c011uid __u8 ssf_data[0]; 29389de9aa86469604a61fb72f8073f984442b8c011uid}; 29489de9aa86469604a61fb72f8073f984442b8c011uid 29589de9aa86469604a61fb72f8073f984442b8c011uid/* 29689de9aa86469604a61fb72f8073f984442b8c011uid * ssf_flags: 16 bits (unsigned integer) 29789de9aa86469604a61fb72f8073f984442b8c011uid * 29889de9aa86469604a61fb72f8073f984442b8c011uid * The flag value will take one of the following values 29989de9aa86469604a61fb72f8073f984442b8c011uid * 30089de9aa86469604a61fb72f8073f984442b8c011uid * SCTP_DATA_UNSENT - Indicates that the data was never put on 30189de9aa86469604a61fb72f8073f984442b8c011uid * the wire. 30289de9aa86469604a61fb72f8073f984442b8c011uid * 30389de9aa86469604a61fb72f8073f984442b8c011uid * SCTP_DATA_SENT - Indicates that the data was put on the wire. 30489de9aa86469604a61fb72f8073f984442b8c011uid * Note that this does not necessarily mean that the 30589de9aa86469604a61fb72f8073f984442b8c011uid * data was (or was not) successfully delivered. 30689de9aa86469604a61fb72f8073f984442b8c011uid */ 30789de9aa86469604a61fb72f8073f984442b8c011uidenum sctp_ssf_flags { 30889de9aa86469604a61fb72f8073f984442b8c011uid SCTP_DATA_UNSENT, 30989de9aa86469604a61fb72f8073f984442b8c011uid SCTP_DATA_SENT, 31089de9aa86469604a61fb72f8073f984442b8c011uid}; 31189de9aa86469604a61fb72f8073f984442b8c011uid 31289de9aa86469604a61fb72f8073f984442b8c011uid/* 31389de9aa86469604a61fb72f8073f984442b8c011uid * 5.3.1.5 SCTP_SHUTDOWN_EVENT 31489de9aa86469604a61fb72f8073f984442b8c011uid * 31589de9aa86469604a61fb72f8073f984442b8c011uid * When a peer sends a SHUTDOWN, SCTP delivers this notification to 31689de9aa86469604a61fb72f8073f984442b8c011uid * inform the application that it should cease sending data. 31789de9aa86469604a61fb72f8073f984442b8c011uid */ 31889de9aa86469604a61fb72f8073f984442b8c011uidstruct sctp_shutdown_event { 31989de9aa86469604a61fb72f8073f984442b8c011uid __u16 sse_type; 32089de9aa86469604a61fb72f8073f984442b8c011uid __u16 sse_flags; 32189de9aa86469604a61fb72f8073f984442b8c011uid __u32 sse_length; 32289de9aa86469604a61fb72f8073f984442b8c011uid sctp_assoc_t sse_assoc_id; 32389de9aa86469604a61fb72f8073f984442b8c011uid}; 32489de9aa86469604a61fb72f8073f984442b8c011uid 32589de9aa86469604a61fb72f8073f984442b8c011uid/* 3266f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * 5.3.1.6 SCTP_ADAPTATION_INDICATION 32789de9aa86469604a61fb72f8073f984442b8c011uid * 3286f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * When a peer sends a Adaptation Layer Indication parameter , SCTP 32989de9aa86469604a61fb72f8073f984442b8c011uid * delivers this notification to inform the application 3306f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * that of the peers requested adaptation layer. 33189de9aa86469604a61fb72f8073f984442b8c011uid */ 3326f22494d19b605ded308dc0fa713e91cb873f44aSimon Xustruct sctp_adaptation_event { 33389de9aa86469604a61fb72f8073f984442b8c011uid __u16 sai_type; 33489de9aa86469604a61fb72f8073f984442b8c011uid __u16 sai_flags; 33589de9aa86469604a61fb72f8073f984442b8c011uid __u32 sai_length; 3366f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u32 sai_adaptation_ind; 33789de9aa86469604a61fb72f8073f984442b8c011uid sctp_assoc_t sai_assoc_id; 33889de9aa86469604a61fb72f8073f984442b8c011uid}; 33989de9aa86469604a61fb72f8073f984442b8c011uid 34089de9aa86469604a61fb72f8073f984442b8c011uid/* 34189de9aa86469604a61fb72f8073f984442b8c011uid * 5.3.1.7 SCTP_PARTIAL_DELIVERY_EVENT 34289de9aa86469604a61fb72f8073f984442b8c011uid * 3436f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * When a receiver is engaged in a partial delivery of a 3446f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * message this notification will be used to indicate 34589de9aa86469604a61fb72f8073f984442b8c011uid * various events. 34689de9aa86469604a61fb72f8073f984442b8c011uid */ 34789de9aa86469604a61fb72f8073f984442b8c011uidstruct sctp_pdapi_event { 34889de9aa86469604a61fb72f8073f984442b8c011uid __u16 pdapi_type; 34989de9aa86469604a61fb72f8073f984442b8c011uid __u16 pdapi_flags; 35089de9aa86469604a61fb72f8073f984442b8c011uid __u32 pdapi_length; 35189de9aa86469604a61fb72f8073f984442b8c011uid __u32 pdapi_indication; 35289de9aa86469604a61fb72f8073f984442b8c011uid sctp_assoc_t pdapi_assoc_id; 35389de9aa86469604a61fb72f8073f984442b8c011uid}; 35489de9aa86469604a61fb72f8073f984442b8c011uid 35589de9aa86469604a61fb72f8073f984442b8c011uidenum { SCTP_PARTIAL_DELIVERY_ABORTED=0, }; 35689de9aa86469604a61fb72f8073f984442b8c011uid 35789de9aa86469604a61fb72f8073f984442b8c011uid/* 3586f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu* 5.3.1.8. SCTP_AUTHENTICATION_EVENT 3596f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu* 3606f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu* When a receiver is using authentication this message will provide 3616f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu* notifications regarding new keys being made active as well as errors. 3626f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu*/ 3636f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu 3646f22494d19b605ded308dc0fa713e91cb873f44aSimon Xustruct sctp_authkey_event { 3656f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u16 auth_type; 3666f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u16 auth_flags; 3676f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u32 auth_length; 3686f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u16 auth_keynumber; 3696f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u16 auth_altkeynumber; 3706f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u32 auth_indication; 3716f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu sctp_assoc_t auth_assoc_id; 3726f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu}; 3736f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu 3746f22494d19b605ded308dc0fa713e91cb873f44aSimon Xuenum { SCTP_AUTH_NEWKEY = 0, }; 3756f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu 3766f22494d19b605ded308dc0fa713e91cb873f44aSimon Xustruct sctp_sender_dry_event { 3776f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u16 sender_dry_type; 3786f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u16 sender_dry_flags; 3796f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u32 sender_dry_length; 3806f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu sctp_assoc_t sender_dry_assoc_id; 3816f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu}; 3826f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu 3836f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu/* 38489de9aa86469604a61fb72f8073f984442b8c011uid * Described in Section 7.3 38589de9aa86469604a61fb72f8073f984442b8c011uid * Ancillary Data and Notification Interest Options 38689de9aa86469604a61fb72f8073f984442b8c011uid */ 38789de9aa86469604a61fb72f8073f984442b8c011uidstruct sctp_event_subscribe { 38889de9aa86469604a61fb72f8073f984442b8c011uid __u8 sctp_data_io_event; 38989de9aa86469604a61fb72f8073f984442b8c011uid __u8 sctp_association_event; 39089de9aa86469604a61fb72f8073f984442b8c011uid __u8 sctp_address_event; 39189de9aa86469604a61fb72f8073f984442b8c011uid __u8 sctp_send_failure_event; 39289de9aa86469604a61fb72f8073f984442b8c011uid __u8 sctp_peer_error_event; 39389de9aa86469604a61fb72f8073f984442b8c011uid __u8 sctp_shutdown_event; 39489de9aa86469604a61fb72f8073f984442b8c011uid __u8 sctp_partial_delivery_event; 3956f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u8 sctp_adaptation_layer_event; 3966f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u8 sctp_authentication_event; 3976f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u8 sctp_sender_dry_event; 39889de9aa86469604a61fb72f8073f984442b8c011uid}; 39989de9aa86469604a61fb72f8073f984442b8c011uid 40089de9aa86469604a61fb72f8073f984442b8c011uid/* 40189de9aa86469604a61fb72f8073f984442b8c011uid * 5.3.1 SCTP Notification Structure 40289de9aa86469604a61fb72f8073f984442b8c011uid * 40389de9aa86469604a61fb72f8073f984442b8c011uid * The notification structure is defined as the union of all 40489de9aa86469604a61fb72f8073f984442b8c011uid * notification types. 40589de9aa86469604a61fb72f8073f984442b8c011uid * 40689de9aa86469604a61fb72f8073f984442b8c011uid */ 40789de9aa86469604a61fb72f8073f984442b8c011uidunion sctp_notification { 40889de9aa86469604a61fb72f8073f984442b8c011uid struct { 40989de9aa86469604a61fb72f8073f984442b8c011uid __u16 sn_type; /* Notification type. */ 41089de9aa86469604a61fb72f8073f984442b8c011uid __u16 sn_flags; 41189de9aa86469604a61fb72f8073f984442b8c011uid __u32 sn_length; 41289de9aa86469604a61fb72f8073f984442b8c011uid } sn_header; 41389de9aa86469604a61fb72f8073f984442b8c011uid struct sctp_assoc_change sn_assoc_change; 41489de9aa86469604a61fb72f8073f984442b8c011uid struct sctp_paddr_change sn_paddr_change; 41589de9aa86469604a61fb72f8073f984442b8c011uid struct sctp_remote_error sn_remote_error; 41689de9aa86469604a61fb72f8073f984442b8c011uid struct sctp_send_failed sn_send_failed; 41789de9aa86469604a61fb72f8073f984442b8c011uid struct sctp_shutdown_event sn_shutdown_event; 4186f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu struct sctp_adaptation_event sn_adaptation_event; 41989de9aa86469604a61fb72f8073f984442b8c011uid struct sctp_pdapi_event sn_pdapi_event; 4206f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu struct sctp_authkey_event sn_authkey_event; 4216f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu struct sctp_sender_dry_event sn_sender_dry_event; 42289de9aa86469604a61fb72f8073f984442b8c011uid}; 42389de9aa86469604a61fb72f8073f984442b8c011uid 42489de9aa86469604a61fb72f8073f984442b8c011uid/* Section 5.3.1 42589de9aa86469604a61fb72f8073f984442b8c011uid * All standard values for sn_type flags are greater than 2^15. 42689de9aa86469604a61fb72f8073f984442b8c011uid * Values from 2^15 and down are reserved. 42789de9aa86469604a61fb72f8073f984442b8c011uid */ 42889de9aa86469604a61fb72f8073f984442b8c011uid 42989de9aa86469604a61fb72f8073f984442b8c011uidenum sctp_sn_type { 43089de9aa86469604a61fb72f8073f984442b8c011uid SCTP_SN_TYPE_BASE = (1<<15), 43189de9aa86469604a61fb72f8073f984442b8c011uid SCTP_ASSOC_CHANGE, 4326f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_ASSOC_CHANGE SCTP_ASSOC_CHANGE 43389de9aa86469604a61fb72f8073f984442b8c011uid SCTP_PEER_ADDR_CHANGE, 4346f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_PEER_ADDR_CHANGE SCTP_PEER_ADDR_CHANGE 43589de9aa86469604a61fb72f8073f984442b8c011uid SCTP_SEND_FAILED, 4366f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_SEND_FAILED SCTP_SEND_FAILED 43789de9aa86469604a61fb72f8073f984442b8c011uid SCTP_REMOTE_ERROR, 4386f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_REMOTE_ERROR SCTP_REMOTE_ERROR 43989de9aa86469604a61fb72f8073f984442b8c011uid SCTP_SHUTDOWN_EVENT, 4406f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_SHUTDOWN_EVENT SCTP_SHUTDOWN_EVENT 44189de9aa86469604a61fb72f8073f984442b8c011uid SCTP_PARTIAL_DELIVERY_EVENT, 4426f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_PARTIAL_DELIVERY_EVENT SCTP_PARTIAL_DELIVERY_EVENT 4436f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu SCTP_ADAPTATION_INDICATION, 4446f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_ADAPTATION_INDICATION SCTP_ADAPTATION_INDICATION 4456f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu SCTP_AUTHENTICATION_INDICATION, 4466f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_AUTHENTICATION_INDICATION SCTP_AUTHENTICATION_INDICATION 4476f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu SCTP_SENDER_DRY_EVENT, 4486f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define SCTP_SENDER_DRY_EVENT SCTP_SENDER_DRY_EVENT 44989de9aa86469604a61fb72f8073f984442b8c011uid}; 45089de9aa86469604a61fb72f8073f984442b8c011uid 45189de9aa86469604a61fb72f8073f984442b8c011uid/* Notification error codes used to fill up the error fields in some 45289de9aa86469604a61fb72f8073f984442b8c011uid * notifications. 45389de9aa86469604a61fb72f8073f984442b8c011uid * SCTP_PEER_ADDRESS_CHAGE : spc_error 45489de9aa86469604a61fb72f8073f984442b8c011uid * SCTP_ASSOC_CHANGE : sac_error 45589de9aa86469604a61fb72f8073f984442b8c011uid * These names should be potentially included in the draft 04 of the SCTP 45689de9aa86469604a61fb72f8073f984442b8c011uid * sockets API specification. 45789de9aa86469604a61fb72f8073f984442b8c011uid */ 45889de9aa86469604a61fb72f8073f984442b8c011uidtypedef enum sctp_sn_error { 45989de9aa86469604a61fb72f8073f984442b8c011uid SCTP_FAILED_THRESHOLD, 46089de9aa86469604a61fb72f8073f984442b8c011uid SCTP_RECEIVED_SACK, 46189de9aa86469604a61fb72f8073f984442b8c011uid SCTP_HEARTBEAT_SUCCESS, 46289de9aa86469604a61fb72f8073f984442b8c011uid SCTP_RESPONSE_TO_USER_REQ, 46389de9aa86469604a61fb72f8073f984442b8c011uid SCTP_INTERNAL_ERROR, 46489de9aa86469604a61fb72f8073f984442b8c011uid SCTP_SHUTDOWN_GUARD_EXPIRES, 46589de9aa86469604a61fb72f8073f984442b8c011uid SCTP_PEER_FAULTY, 46689de9aa86469604a61fb72f8073f984442b8c011uid} sctp_sn_error_t; 46789de9aa86469604a61fb72f8073f984442b8c011uid 46889de9aa86469604a61fb72f8073f984442b8c011uid/* 46989de9aa86469604a61fb72f8073f984442b8c011uid * 7.1.1 Retransmission Timeout Parameters (SCTP_RTOINFO) 47089de9aa86469604a61fb72f8073f984442b8c011uid * 47189de9aa86469604a61fb72f8073f984442b8c011uid * The protocol parameters used to initialize and bound retransmission 47289de9aa86469604a61fb72f8073f984442b8c011uid * timeout (RTO) are tunable. See [SCTP] for more information on how 4736f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * these parameters are used in RTO calculation. 47489de9aa86469604a61fb72f8073f984442b8c011uid */ 47589de9aa86469604a61fb72f8073f984442b8c011uidstruct sctp_rtoinfo { 47689de9aa86469604a61fb72f8073f984442b8c011uid sctp_assoc_t srto_assoc_id; 47789de9aa86469604a61fb72f8073f984442b8c011uid __u32 srto_initial; 47889de9aa86469604a61fb72f8073f984442b8c011uid __u32 srto_max; 47989de9aa86469604a61fb72f8073f984442b8c011uid __u32 srto_min; 48089de9aa86469604a61fb72f8073f984442b8c011uid}; 48189de9aa86469604a61fb72f8073f984442b8c011uid 48289de9aa86469604a61fb72f8073f984442b8c011uid/* 48389de9aa86469604a61fb72f8073f984442b8c011uid * 7.1.2 Association Parameters (SCTP_ASSOCINFO) 48489de9aa86469604a61fb72f8073f984442b8c011uid * 48589de9aa86469604a61fb72f8073f984442b8c011uid * This option is used to both examine and set various association and 48689de9aa86469604a61fb72f8073f984442b8c011uid * endpoint parameters. 48789de9aa86469604a61fb72f8073f984442b8c011uid */ 48889de9aa86469604a61fb72f8073f984442b8c011uidstruct sctp_assocparams { 48989de9aa86469604a61fb72f8073f984442b8c011uid sctp_assoc_t sasoc_assoc_id; 49089de9aa86469604a61fb72f8073f984442b8c011uid __u16 sasoc_asocmaxrxt; 49189de9aa86469604a61fb72f8073f984442b8c011uid __u16 sasoc_number_peer_destinations; 49289de9aa86469604a61fb72f8073f984442b8c011uid __u32 sasoc_peer_rwnd; 49389de9aa86469604a61fb72f8073f984442b8c011uid __u32 sasoc_local_rwnd; 49489de9aa86469604a61fb72f8073f984442b8c011uid __u32 sasoc_cookie_life; 49589de9aa86469604a61fb72f8073f984442b8c011uid}; 49689de9aa86469604a61fb72f8073f984442b8c011uid 49789de9aa86469604a61fb72f8073f984442b8c011uid/* 49889de9aa86469604a61fb72f8073f984442b8c011uid * 7.1.9 Set Peer Primary Address (SCTP_SET_PEER_PRIMARY_ADDR) 49989de9aa86469604a61fb72f8073f984442b8c011uid * 50089de9aa86469604a61fb72f8073f984442b8c011uid * Requests that the peer mark the enclosed address as the association 50189de9aa86469604a61fb72f8073f984442b8c011uid * primary. The enclosed address must be one of the association's 50289de9aa86469604a61fb72f8073f984442b8c011uid * locally bound addresses. The following structure is used to make a 50389de9aa86469604a61fb72f8073f984442b8c011uid * set primary request: 50489de9aa86469604a61fb72f8073f984442b8c011uid */ 50589de9aa86469604a61fb72f8073f984442b8c011uidstruct sctp_setpeerprim { 50689de9aa86469604a61fb72f8073f984442b8c011uid sctp_assoc_t sspp_assoc_id; 50789de9aa86469604a61fb72f8073f984442b8c011uid struct sockaddr_storage sspp_addr; 50864a341fc42c967890a9fb5d8855568e23104bef6mridge} __attribute__((packed, aligned(4))); 50989de9aa86469604a61fb72f8073f984442b8c011uid 51089de9aa86469604a61fb72f8073f984442b8c011uid/* 51189de9aa86469604a61fb72f8073f984442b8c011uid * 7.1.10 Set Primary Address (SCTP_PRIMARY_ADDR) 51289de9aa86469604a61fb72f8073f984442b8c011uid * 51389de9aa86469604a61fb72f8073f984442b8c011uid * Requests that the local SCTP stack use the enclosed peer address as 51489de9aa86469604a61fb72f8073f984442b8c011uid * the association primary. The enclosed address must be one of the 51589de9aa86469604a61fb72f8073f984442b8c011uid * association peer's addresses. The following structure is used to 51689de9aa86469604a61fb72f8073f984442b8c011uid * make a set peer primary request: 51789de9aa86469604a61fb72f8073f984442b8c011uid */ 5186f22494d19b605ded308dc0fa713e91cb873f44aSimon Xustruct sctp_setprim { 51989de9aa86469604a61fb72f8073f984442b8c011uid sctp_assoc_t ssp_assoc_id; 52089de9aa86469604a61fb72f8073f984442b8c011uid struct sockaddr_storage ssp_addr; 52164a341fc42c967890a9fb5d8855568e23104bef6mridge} __attribute__((packed, aligned(4))); 52289de9aa86469604a61fb72f8073f984442b8c011uid 5236f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu/* For backward compatibility use, define the old name too */ 5246f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define sctp_prim sctp_setprim 5256f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu 52689de9aa86469604a61fb72f8073f984442b8c011uid/* 5276f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * 7.1.11 Set Adaptation Layer Indicator (SCTP_ADAPTATION_LAYER) 52889de9aa86469604a61fb72f8073f984442b8c011uid * 5296f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * Requests that the local endpoint set the specified Adaptation Layer 53089de9aa86469604a61fb72f8073f984442b8c011uid * Indication parameter for all future INIT and INIT-ACK exchanges. 53189de9aa86469604a61fb72f8073f984442b8c011uid */ 5326f22494d19b605ded308dc0fa713e91cb873f44aSimon Xustruct sctp_setadaptation { 5336f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u32 ssb_adaptation_ind; 53489de9aa86469604a61fb72f8073f984442b8c011uid}; 53589de9aa86469604a61fb72f8073f984442b8c011uid 53689de9aa86469604a61fb72f8073f984442b8c011uid/* 53789de9aa86469604a61fb72f8073f984442b8c011uid * 7.1.13 Peer Address Parameters (SCTP_PEER_ADDR_PARAMS) 53889de9aa86469604a61fb72f8073f984442b8c011uid * 53989de9aa86469604a61fb72f8073f984442b8c011uid * Applications can enable or disable heartbeats for any peer address 54089de9aa86469604a61fb72f8073f984442b8c011uid * of an association, modify an address's heartbeat interval, force a 54189de9aa86469604a61fb72f8073f984442b8c011uid * heartbeat to be sent immediately, and adjust the address's maximum 54289de9aa86469604a61fb72f8073f984442b8c011uid * number of retransmissions sent before an address is considered 54389de9aa86469604a61fb72f8073f984442b8c011uid * unreachable. The following structure is used to access and modify an 54489de9aa86469604a61fb72f8073f984442b8c011uid * address's parameters: 54589de9aa86469604a61fb72f8073f984442b8c011uid */ 5466f22494d19b605ded308dc0fa713e91cb873f44aSimon Xuenum sctp_spp_flags { 5476f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu SPP_HB_ENABLE = 1<<0, /*Enable heartbeats*/ 5486f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu SPP_HB_DISABLE = 1<<1, /*Disable heartbeats*/ 5496f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu SPP_HB = SPP_HB_ENABLE | SPP_HB_DISABLE, 5506f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu SPP_HB_DEMAND = 1<<2, /*Send heartbeat immediately*/ 5516f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu SPP_PMTUD_ENABLE = 1<<3, /*Enable PMTU discovery*/ 5526f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu SPP_PMTUD_DISABLE = 1<<4, /*Disable PMTU discovery*/ 5536f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu SPP_PMTUD = SPP_PMTUD_ENABLE | SPP_PMTUD_DISABLE, 5546f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu SPP_SACKDELAY_ENABLE = 1<<5, /*Enable SACK*/ 5556f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu SPP_SACKDELAY_DISABLE = 1<<6, /*Disable SACK*/ 5566f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu SPP_SACKDELAY = SPP_SACKDELAY_ENABLE | SPP_SACKDELAY_DISABLE, 5576f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu SPP_HB_TIME_IS_ZERO = 1<<7, /* Set HB delay to 0 */ 5586f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu}; 5596f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu 56089de9aa86469604a61fb72f8073f984442b8c011uidstruct sctp_paddrparams { 56189de9aa86469604a61fb72f8073f984442b8c011uid sctp_assoc_t spp_assoc_id; 56289de9aa86469604a61fb72f8073f984442b8c011uid struct sockaddr_storage spp_address; 56389de9aa86469604a61fb72f8073f984442b8c011uid __u32 spp_hbinterval; 56489de9aa86469604a61fb72f8073f984442b8c011uid __u16 spp_pathmaxrxt; 5656f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u32 spp_pathmtu; 5666f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u32 spp_sackdelay; 5676f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u32 spp_flags; 56864a341fc42c967890a9fb5d8855568e23104bef6mridge} __attribute__((packed, aligned(4))); 56989de9aa86469604a61fb72f8073f984442b8c011uid 57089de9aa86469604a61fb72f8073f984442b8c011uid/* 5716f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * 7.1.18. Add a chunk that must be authenticated (SCTP_AUTH_CHUNK) 5726f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * 5736f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * This set option adds a chunk type that the user is requesting to be 5746f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * received only in an authenticated way. Changes to the list of chunks 5756f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * will only effect future associations on the socket. 5766f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu */ 5776f22494d19b605ded308dc0fa713e91cb873f44aSimon Xustruct sctp_authchunk { 5786f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u8 sauth_chunk; 5796f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu}; 5806f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu 5816f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu/* 5826f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * 7.1.19. Get or set the list of supported HMAC Identifiers (SCTP_HMAC_IDENT) 5836f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * 5846f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * This option gets or sets the list of HMAC algorithms that the local 5856f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * endpoint requires the peer to use. 5866f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu*/ 5876f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu 5886f22494d19b605ded308dc0fa713e91cb873f44aSimon Xuenum { 5896f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu SCTP_AUTH_HMAC_ID_SHA1 = 1, 5906f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu SCTP_AUTH_HMAC_ID_SHA256 = 3, 5916f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu}; 5926f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu 5936f22494d19b605ded308dc0fa713e91cb873f44aSimon Xustruct sctp_hmacalgo { 5946f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u32 shmac_number_of_idents; 5956f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u16 shmac_idents[]; 5966f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu}; 5976f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu 5986f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu/* 5996f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * 7.1.20. Set a shared key (SCTP_AUTH_KEY) 6006f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * 6016f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * This option will set a shared secret key which is used to build an 6026f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * association shared key. 6036f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu */ 6046f22494d19b605ded308dc0fa713e91cb873f44aSimon Xustruct sctp_authkey { 6056f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu sctp_assoc_t sca_assoc_id; 6066f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u16 sca_keynumber; 6076f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u16 sca_keylength; 6086f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u8 sca_key[]; 6096f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu}; 6106f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu 6116f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu/* 6126f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * 7.1.21. Get or set the active shared key (SCTP_AUTH_ACTIVE_KEY) 6136f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * 6146f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * This option will get or set the active shared key to be used to build 6156f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * the association shared key. 6166f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu */ 6176f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu 6186f22494d19b605ded308dc0fa713e91cb873f44aSimon Xustruct sctp_authkeyid { 6196f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu sctp_assoc_t scact_assoc_id; 6206f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u16 scact_keynumber; 6216f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu}; 6226f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu 6236f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu 6246f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu/* 6256f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * 7.1.23. Get or set delayed ack timer (SCTP_DELAYED_SACK) 6266f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * 6276f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * This option will effect the way delayed acks are performed. This 6286f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * option allows you to get or set the delayed ack time, in 6296f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * milliseconds. It also allows changing the delayed ack frequency. 6306f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * Changing the frequency to 1 disables the delayed sack algorithm. If 6316f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * the assoc_id is 0, then this sets or gets the endpoints default 6326f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * values. If the assoc_id field is non-zero, then the set or get 6336f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * effects the specified association for the one to many model (the 6346f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * assoc_id field is ignored by the one to one model). Note that if 6356f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * sack_delay or sack_freq are 0 when setting this option, then the 6366f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * current values will remain unchanged. 6376f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu */ 6386f22494d19b605ded308dc0fa713e91cb873f44aSimon Xustruct sctp_sack_info { 6396f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu sctp_assoc_t sack_assoc_id; 6406f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu uint32_t sack_delay; 6416f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu uint32_t sack_freq; 6426f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu}; 6436f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu 6446f22494d19b605ded308dc0fa713e91cb873f44aSimon Xustruct sctp_assoc_value { 6456f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu sctp_assoc_t assoc_id; 6466f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu uint32_t assoc_value; 6476f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu}; 6486f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu 6496f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu/* 65089de9aa86469604a61fb72f8073f984442b8c011uid * 7.2.2 Peer Address Information 65189de9aa86469604a61fb72f8073f984442b8c011uid * 65289de9aa86469604a61fb72f8073f984442b8c011uid * Applications can retrieve information about a specific peer address 65389de9aa86469604a61fb72f8073f984442b8c011uid * of an association, including its reachability state, congestion 65489de9aa86469604a61fb72f8073f984442b8c011uid * window, and retransmission timer values. This information is 65589de9aa86469604a61fb72f8073f984442b8c011uid * read-only. The following structure is used to access this 65689de9aa86469604a61fb72f8073f984442b8c011uid * information: 65789de9aa86469604a61fb72f8073f984442b8c011uid */ 65889de9aa86469604a61fb72f8073f984442b8c011uidstruct sctp_paddrinfo { 65989de9aa86469604a61fb72f8073f984442b8c011uid sctp_assoc_t spinfo_assoc_id; 66089de9aa86469604a61fb72f8073f984442b8c011uid struct sockaddr_storage spinfo_address; 66189de9aa86469604a61fb72f8073f984442b8c011uid __s32 spinfo_state; 66289de9aa86469604a61fb72f8073f984442b8c011uid __u32 spinfo_cwnd; 66389de9aa86469604a61fb72f8073f984442b8c011uid __u32 spinfo_srtt; 66489de9aa86469604a61fb72f8073f984442b8c011uid __u32 spinfo_rto; 66589de9aa86469604a61fb72f8073f984442b8c011uid __u32 spinfo_mtu; 66664a341fc42c967890a9fb5d8855568e23104bef6mridge} __attribute__((packed, aligned(4))); 66789de9aa86469604a61fb72f8073f984442b8c011uid 66889de9aa86469604a61fb72f8073f984442b8c011uid/* Peer addresses's state. */ 6696f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu/* UNKNOWN: Peer address passed by the upper layer in sendmsg or connect[x] 6706f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * calls. 6716f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * UNCONFIRMED: Peer address received in INIT/INIT-ACK address parameters. 6726f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * Not yet confirmed by a heartbeat and not available for data 6736f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * transfers. 6746f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * ACTIVE : Peer address confirmed, active and available for data transfers. 6756f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * INACTIVE: Peer address inactive and not available for data transfers. 6766f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu */ 67789de9aa86469604a61fb72f8073f984442b8c011uidenum sctp_spinfo_state { 67889de9aa86469604a61fb72f8073f984442b8c011uid SCTP_INACTIVE, 6796f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu SCTP_PF, 68089de9aa86469604a61fb72f8073f984442b8c011uid SCTP_ACTIVE, 6816f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu SCTP_UNCONFIRMED, 6826f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu SCTP_UNKNOWN = 0xffff 68389de9aa86469604a61fb72f8073f984442b8c011uid}; 68489de9aa86469604a61fb72f8073f984442b8c011uid 68589de9aa86469604a61fb72f8073f984442b8c011uid/* 68689de9aa86469604a61fb72f8073f984442b8c011uid * 7.2.1 Association Status (SCTP_STATUS) 68789de9aa86469604a61fb72f8073f984442b8c011uid * 68889de9aa86469604a61fb72f8073f984442b8c011uid * Applications can retrieve current status information about an 68989de9aa86469604a61fb72f8073f984442b8c011uid * association, including association state, peer receiver window size, 69089de9aa86469604a61fb72f8073f984442b8c011uid * number of unacked data chunks, and number of data chunks pending 69189de9aa86469604a61fb72f8073f984442b8c011uid * receipt. This information is read-only. The following structure is 69289de9aa86469604a61fb72f8073f984442b8c011uid * used to access this information: 69389de9aa86469604a61fb72f8073f984442b8c011uid */ 69489de9aa86469604a61fb72f8073f984442b8c011uidstruct sctp_status { 69589de9aa86469604a61fb72f8073f984442b8c011uid sctp_assoc_t sstat_assoc_id; 69689de9aa86469604a61fb72f8073f984442b8c011uid __s32 sstat_state; 69789de9aa86469604a61fb72f8073f984442b8c011uid __u32 sstat_rwnd; 69889de9aa86469604a61fb72f8073f984442b8c011uid __u16 sstat_unackdata; 69989de9aa86469604a61fb72f8073f984442b8c011uid __u16 sstat_penddata; 70089de9aa86469604a61fb72f8073f984442b8c011uid __u16 sstat_instrms; 70189de9aa86469604a61fb72f8073f984442b8c011uid __u16 sstat_outstrms; 70289de9aa86469604a61fb72f8073f984442b8c011uid __u32 sstat_fragmentation_point; 70389de9aa86469604a61fb72f8073f984442b8c011uid struct sctp_paddrinfo sstat_primary; 70489de9aa86469604a61fb72f8073f984442b8c011uid}; 70589de9aa86469604a61fb72f8073f984442b8c011uid 7066f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu/* 7076f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * 7.2.3. Get the list of chunks the peer requires to be authenticated 7086f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * (SCTP_PEER_AUTH_CHUNKS) 7096f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * 7106f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * This option gets a list of chunks for a specified association that 7116f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * the peer requires to be received authenticated only. 7126f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu */ 7136f22494d19b605ded308dc0fa713e91cb873f44aSimon Xustruct sctp_authchunks { 7146f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu sctp_assoc_t gauth_assoc_id; 7156f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u32 gauth_number_of_chunks; 7166f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu uint8_t gauth_chunks[]; 7176f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu}; 7186f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu/* The broken spelling has been released already, 7196f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * so don't break anyone, now that it's fixed. 7206f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu */ 7216f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu#define guth_number_of_chunks gauth_number_of_chunks 7226f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu 72364a341fc42c967890a9fb5d8855568e23104bef6mridge/* Association states. */ 72464a341fc42c967890a9fb5d8855568e23104bef6mridgeenum sctp_sstat_state { 72564a341fc42c967890a9fb5d8855568e23104bef6mridge SCTP_EMPTY = 0, 72664a341fc42c967890a9fb5d8855568e23104bef6mridge SCTP_CLOSED = 1, 72764a341fc42c967890a9fb5d8855568e23104bef6mridge SCTP_COOKIE_WAIT = 2, 72864a341fc42c967890a9fb5d8855568e23104bef6mridge SCTP_COOKIE_ECHOED = 3, 72964a341fc42c967890a9fb5d8855568e23104bef6mridge SCTP_ESTABLISHED = 4, 73064a341fc42c967890a9fb5d8855568e23104bef6mridge SCTP_SHUTDOWN_PENDING = 5, 73164a341fc42c967890a9fb5d8855568e23104bef6mridge SCTP_SHUTDOWN_SENT = 6, 73264a341fc42c967890a9fb5d8855568e23104bef6mridge SCTP_SHUTDOWN_RECEIVED = 7, 73364a341fc42c967890a9fb5d8855568e23104bef6mridge SCTP_SHUTDOWN_ACK_SENT = 8, 73464a341fc42c967890a9fb5d8855568e23104bef6mridge}; 73564a341fc42c967890a9fb5d8855568e23104bef6mridge 73689de9aa86469604a61fb72f8073f984442b8c011uid/* 73737550cf5a86c7ca7424a2a318dd64e550f13f5dfChris Dearman * 8.3, 8.5 get all peer/local addresses in an association. 73864a341fc42c967890a9fb5d8855568e23104bef6mridge * This parameter struct is used by SCTP_GET_PEER_ADDRS and 73964a341fc42c967890a9fb5d8855568e23104bef6mridge * SCTP_GET_LOCAL_ADDRS socket options used internally to implement 7406f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * sctp_getpaddrs() and sctp_getladdrs() API. 74189de9aa86469604a61fb72f8073f984442b8c011uid */ 74264a341fc42c967890a9fb5d8855568e23104bef6mridgestruct sctp_getaddrs_old { 74389de9aa86469604a61fb72f8073f984442b8c011uid sctp_assoc_t assoc_id; 74489de9aa86469604a61fb72f8073f984442b8c011uid int addr_num; 74589de9aa86469604a61fb72f8073f984442b8c011uid struct sockaddr *addrs; 74689de9aa86469604a61fb72f8073f984442b8c011uid}; 74764a341fc42c967890a9fb5d8855568e23104bef6mridgestruct sctp_getaddrs { 7486f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu sctp_assoc_t assoc_id; /*input*/ 7496f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u32 addr_num; /*output*/ 7506f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u8 addrs[0]; /*output, variable size*/ 7516f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu}; 7526f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu 7536f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu/* A socket user request obtained via SCTP_GET_ASSOC_STATS that retrieves 7546f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * association stats. All stats are counts except sas_maxrto and 7556f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * sas_obs_rto_ipaddr. maxrto is the max observed rto + transport since 7566f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu * the last call. Will return 0 when did not change since last call 7576f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu */ 7586f22494d19b605ded308dc0fa713e91cb873f44aSimon Xustruct sctp_assoc_stats { 7596f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu sctp_assoc_t sas_assoc_id; /* Input */ 7606f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu /* Transport of the observed max RTO spike */ 7616f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu struct sockaddr_storage sas_obs_rto_ipaddr; 7626f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u64 sas_maxrto; /* Maximum Observed RTO for period */ 7636f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u64 sas_isacks; /* SACKs received */ 7646f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u64 sas_osacks; /* SACKs sent */ 7656f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u64 sas_opackets; /* Packets sent */ 7666f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u64 sas_ipackets; /* Packets received */ 7676f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u64 sas_rtxchunks; /* Retransmitted Chunks */ 7686f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u64 sas_outofseqtsns;/* TSN received > next expected */ 7696f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u64 sas_idupchunks; /* Dups received (ordered+unordered) */ 7706f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u64 sas_gapcnt; /* Gap Acknowledgements Received */ 7716f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u64 sas_ouodchunks; /* Unordered data chunks sent */ 7726f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u64 sas_iuodchunks; /* Unordered data chunks received */ 7736f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u64 sas_oodchunks; /* Ordered data chunks sent */ 7746f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u64 sas_iodchunks; /* Ordered data chunks received */ 7756f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u64 sas_octrlchunks; /* Control chunks sent */ 7766f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu __u64 sas_ictrlchunks; /* Control chunks received */ 77764a341fc42c967890a9fb5d8855568e23104bef6mridge}; 77889de9aa86469604a61fb72f8073f984442b8c011uid 77989de9aa86469604a61fb72f8073f984442b8c011uid/* These are bit fields for msghdr->msg_flags. See section 5.1. */ 78089de9aa86469604a61fb72f8073f984442b8c011uid/* On user space Linux, these live in <bits/socket.h> as an enum. */ 78189de9aa86469604a61fb72f8073f984442b8c011uidenum sctp_msg_flags { 78289de9aa86469604a61fb72f8073f984442b8c011uid MSG_NOTIFICATION = 0x8000, 78389de9aa86469604a61fb72f8073f984442b8c011uid#define MSG_NOTIFICATION MSG_NOTIFICATION 78489de9aa86469604a61fb72f8073f984442b8c011uid}; 78589de9aa86469604a61fb72f8073f984442b8c011uid 78689de9aa86469604a61fb72f8073f984442b8c011uid/* 78789de9aa86469604a61fb72f8073f984442b8c011uid * 8.1 sctp_bindx() 78889de9aa86469604a61fb72f8073f984442b8c011uid * 78989de9aa86469604a61fb72f8073f984442b8c011uid * The flags parameter is formed from the bitwise OR of zero or more of the 79089de9aa86469604a61fb72f8073f984442b8c011uid * following currently defined flags: 79189de9aa86469604a61fb72f8073f984442b8c011uid */ 79289de9aa86469604a61fb72f8073f984442b8c011uid#define SCTP_BINDX_ADD_ADDR 0x01 79389de9aa86469604a61fb72f8073f984442b8c011uid#define SCTP_BINDX_REM_ADDR 0x02 79489de9aa86469604a61fb72f8073f984442b8c011uid 79589de9aa86469604a61fb72f8073f984442b8c011uid/* This is the structure that is passed as an argument(optval) to 79689de9aa86469604a61fb72f8073f984442b8c011uid * getsockopt(SCTP_SOCKOPT_PEELOFF). 79789de9aa86469604a61fb72f8073f984442b8c011uid */ 79889de9aa86469604a61fb72f8073f984442b8c011uidtypedef struct { 79989de9aa86469604a61fb72f8073f984442b8c011uid sctp_assoc_t associd; 80089de9aa86469604a61fb72f8073f984442b8c011uid int sd; 80189de9aa86469604a61fb72f8073f984442b8c011uid} sctp_peeloff_arg_t; 80289de9aa86469604a61fb72f8073f984442b8c011uid 80389de9aa86469604a61fb72f8073f984442b8c011uid 80489de9aa86469604a61fb72f8073f984442b8c011uidint sctp_bindx(int sd, struct sockaddr *addrs, int addrcnt, int flags); 80589de9aa86469604a61fb72f8073f984442b8c011uid 8066f22494d19b605ded308dc0fa713e91cb873f44aSimon Xuint sctp_connectx(int sd, struct sockaddr *addrs, int addrcnt, 8076f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu sctp_assoc_t *id); 80864a341fc42c967890a9fb5d8855568e23104bef6mridge 80989de9aa86469604a61fb72f8073f984442b8c011uidint sctp_peeloff(int sd, sctp_assoc_t assoc_id); 81089de9aa86469604a61fb72f8073f984442b8c011uid 81189de9aa86469604a61fb72f8073f984442b8c011uid/* Prototype for the library function sctp_opt_info defined in 81289de9aa86469604a61fb72f8073f984442b8c011uid * API 7. Socket Options. 81389de9aa86469604a61fb72f8073f984442b8c011uid */ 81489de9aa86469604a61fb72f8073f984442b8c011uidint sctp_opt_info(int sd, sctp_assoc_t id, int opt, void *arg, socklen_t *size); 81589de9aa86469604a61fb72f8073f984442b8c011uid 81689de9aa86469604a61fb72f8073f984442b8c011uid/* Get all peer address on a socket. This is a new SCTP API 81789de9aa86469604a61fb72f8073f984442b8c011uid * described in the section 8.3 of the Sockets API Extensions for SCTP. 81889de9aa86469604a61fb72f8073f984442b8c011uid * This is implemented using the getsockopt() interface. 81989de9aa86469604a61fb72f8073f984442b8c011uid */ 82089de9aa86469604a61fb72f8073f984442b8c011uidint sctp_getpaddrs(int sd, sctp_assoc_t id, struct sockaddr **addrs); 82189de9aa86469604a61fb72f8073f984442b8c011uid 82289de9aa86469604a61fb72f8073f984442b8c011uid/* Frees all resources allocated by sctp_getpaddrs(). This is a new SCTP API 82389de9aa86469604a61fb72f8073f984442b8c011uid * described in the section 8.4 of the Sockets API Extensions for SCTP. 82489de9aa86469604a61fb72f8073f984442b8c011uid */ 82589de9aa86469604a61fb72f8073f984442b8c011uidint sctp_freepaddrs(struct sockaddr *addrs); 82689de9aa86469604a61fb72f8073f984442b8c011uid 82789de9aa86469604a61fb72f8073f984442b8c011uid/* Get all locally bound address on a socket. This is a new SCTP API 82889de9aa86469604a61fb72f8073f984442b8c011uid * described in the section 8.5 of the Sockets API Extensions for SCTP. 82989de9aa86469604a61fb72f8073f984442b8c011uid * This is implemented using the getsockopt() interface. 83089de9aa86469604a61fb72f8073f984442b8c011uid */ 83189de9aa86469604a61fb72f8073f984442b8c011uidint sctp_getladdrs(int sd, sctp_assoc_t id, struct sockaddr **addrs); 83289de9aa86469604a61fb72f8073f984442b8c011uid 83389de9aa86469604a61fb72f8073f984442b8c011uid/* Frees all resources allocated by sctp_getladdrs(). This is a new SCTP API 83489de9aa86469604a61fb72f8073f984442b8c011uid * described in the section 8.6 of the Sockets API Extensions for SCTP. 83589de9aa86469604a61fb72f8073f984442b8c011uid */ 83689de9aa86469604a61fb72f8073f984442b8c011uidint sctp_freeladdrs(struct sockaddr *addrs); 83789de9aa86469604a61fb72f8073f984442b8c011uid 83889de9aa86469604a61fb72f8073f984442b8c011uid/* This library function assists the user with the advanced features 83989de9aa86469604a61fb72f8073f984442b8c011uid * of SCTP. This is a new SCTP API described in the section 8.7 of the 84089de9aa86469604a61fb72f8073f984442b8c011uid * Sockets API Extensions for SCTP. This is implemented using the 84189de9aa86469604a61fb72f8073f984442b8c011uid * sendmsg() interface. 84289de9aa86469604a61fb72f8073f984442b8c011uid */ 84389de9aa86469604a61fb72f8073f984442b8c011uidint sctp_sendmsg(int s, const void *msg, size_t len, struct sockaddr *to, 84489de9aa86469604a61fb72f8073f984442b8c011uid socklen_t tolen, uint32_t ppid, uint32_t flags, 84589de9aa86469604a61fb72f8073f984442b8c011uid uint16_t stream_no, uint32_t timetolive, uint32_t context); 84689de9aa86469604a61fb72f8073f984442b8c011uid 84764a341fc42c967890a9fb5d8855568e23104bef6mridge/* This library function assist the user with sending a message without 84864a341fc42c967890a9fb5d8855568e23104bef6mridge * dealing directly with the CMSG header. 84964a341fc42c967890a9fb5d8855568e23104bef6mridge */ 85064a341fc42c967890a9fb5d8855568e23104bef6mridgeint sctp_send(int s, const void *msg, size_t len, 85164a341fc42c967890a9fb5d8855568e23104bef6mridge const struct sctp_sndrcvinfo *sinfo, int flags); 85264a341fc42c967890a9fb5d8855568e23104bef6mridge 85389de9aa86469604a61fb72f8073f984442b8c011uid/* This library function assists the user with the advanced features 85489de9aa86469604a61fb72f8073f984442b8c011uid * of SCTP. This is a new SCTP API described in the section 8.8 of the 85589de9aa86469604a61fb72f8073f984442b8c011uid * Sockets API Extensions for SCTP. This is implemented using the 85689de9aa86469604a61fb72f8073f984442b8c011uid * recvmsg() interface. 85789de9aa86469604a61fb72f8073f984442b8c011uid */ 85864a341fc42c967890a9fb5d8855568e23104bef6mridgeint sctp_recvmsg(int s, void *msg, size_t len, struct sockaddr *from, 85989de9aa86469604a61fb72f8073f984442b8c011uid socklen_t *fromlen, struct sctp_sndrcvinfo *sinfo, 86089de9aa86469604a61fb72f8073f984442b8c011uid int *msg_flags); 86189de9aa86469604a61fb72f8073f984442b8c011uid 8626f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu/* Return the address length for an address family. */ 8636f22494d19b605ded308dc0fa713e91cb873f44aSimon Xuint sctp_getaddrlen(sa_family_t family); 8646f22494d19b605ded308dc0fa713e91cb873f44aSimon Xu 86564a341fc42c967890a9fb5d8855568e23104bef6mridge__END_DECLS 86664a341fc42c967890a9fb5d8855568e23104bef6mridge 86789de9aa86469604a61fb72f8073f984442b8c011uid#endif /* __linux_sctp_h__ */ 868