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1216 lines
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1216 lines
35 KiB
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
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/* SCTP kernel implementation |
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* (C) Copyright IBM Corp. 2001, 2004 |
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* Copyright (c) 1999-2000 Cisco, Inc. |
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* Copyright (c) 1999-2001 Motorola, Inc. |
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* Copyright (c) 2002 Intel Corp. |
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* |
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* This file is part of the SCTP kernel implementation |
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* |
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* This header represents the structures and constants needed to support |
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* the SCTP Extension to the Sockets API. |
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* |
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* This SCTP implementation is free software; |
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* you can redistribute it and/or modify it under the terms of |
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* the GNU General Public License as published by |
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* the Free Software Foundation; either version 2, or (at your option) |
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* any later version. |
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* |
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* This SCTP implementation is distributed in the hope that it |
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* will be useful, but WITHOUT ANY WARRANTY; without even the implied |
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* ************************ |
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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* See the GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with GNU CC; see the file COPYING. If not, see |
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* <http://www.gnu.org/licenses/>. |
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* |
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* Please send any bug reports or fixes you make to the |
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* email address(es): |
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* lksctp developers <[email protected]> |
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* |
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* Or submit a bug report through the following website: |
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* http://www.sf.net/projects/lksctp |
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* |
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* Written or modified by: |
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* La Monte H.P. Yarroll <[email protected]> |
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* R. Stewart <[email protected]> |
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* K. Morneau <[email protected]> |
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* Q. Xie <[email protected]> |
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* Karl Knutson <[email protected]> |
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* Jon Grimm <[email protected]> |
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* Daisy Chang <[email protected]> |
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* Ryan Layer <[email protected]> |
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* Ardelle Fan <[email protected]> |
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* Sridhar Samudrala <[email protected]> |
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* Inaky Perez-Gonzalez <[email protected]> |
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* Vlad Yasevich <[email protected]> |
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* |
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* Any bugs reported given to us we will try to fix... any fixes shared will |
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* be incorporated into the next SCTP release. |
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*/ |
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|
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#ifndef _UAPI_SCTP_H |
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#define _UAPI_SCTP_H |
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#include <linux/types.h> |
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#include <linux/socket.h> |
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typedef __s32 sctp_assoc_t; |
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#define SCTP_FUTURE_ASSOC 0 |
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#define SCTP_CURRENT_ASSOC 1 |
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#define SCTP_ALL_ASSOC 2 |
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|
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/* The following symbols come from the Sockets API Extensions for |
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* SCTP <draft-ietf-tsvwg-sctpsocket-07.txt>. |
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*/ |
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#define SCTP_RTOINFO 0 |
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#define SCTP_ASSOCINFO 1 |
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#define SCTP_INITMSG 2 |
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#define SCTP_NODELAY 3 /* Get/set nodelay option. */ |
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#define SCTP_AUTOCLOSE 4 |
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#define SCTP_SET_PEER_PRIMARY_ADDR 5 |
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#define SCTP_PRIMARY_ADDR 6 |
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#define SCTP_ADAPTATION_LAYER 7 |
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#define SCTP_DISABLE_FRAGMENTS 8 |
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#define SCTP_PEER_ADDR_PARAMS 9 |
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#define SCTP_DEFAULT_SEND_PARAM 10 |
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#define SCTP_EVENTS 11 |
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#define SCTP_I_WANT_MAPPED_V4_ADDR 12 /* Turn on/off mapped v4 addresses */ |
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#define SCTP_MAXSEG 13 /* Get/set maximum fragment. */ |
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#define SCTP_STATUS 14 |
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#define SCTP_GET_PEER_ADDR_INFO 15 |
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#define SCTP_DELAYED_ACK_TIME 16 |
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#define SCTP_DELAYED_ACK SCTP_DELAYED_ACK_TIME |
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#define SCTP_DELAYED_SACK SCTP_DELAYED_ACK_TIME |
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#define SCTP_CONTEXT 17 |
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#define SCTP_FRAGMENT_INTERLEAVE 18 |
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#define SCTP_PARTIAL_DELIVERY_POINT 19 /* Set/Get partial delivery point */ |
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#define SCTP_MAX_BURST 20 /* Set/Get max burst */ |
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#define SCTP_AUTH_CHUNK 21 /* Set only: add a chunk type to authenticate */ |
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#define SCTP_HMAC_IDENT 22 |
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#define SCTP_AUTH_KEY 23 |
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#define SCTP_AUTH_ACTIVE_KEY 24 |
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#define SCTP_AUTH_DELETE_KEY 25 |
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#define SCTP_PEER_AUTH_CHUNKS 26 /* Read only */ |
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#define SCTP_LOCAL_AUTH_CHUNKS 27 /* Read only */ |
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#define SCTP_GET_ASSOC_NUMBER 28 /* Read only */ |
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#define SCTP_GET_ASSOC_ID_LIST 29 /* Read only */ |
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#define SCTP_AUTO_ASCONF 30 |
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#define SCTP_PEER_ADDR_THLDS 31 |
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#define SCTP_RECVRCVINFO 32 |
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#define SCTP_RECVNXTINFO 33 |
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#define SCTP_DEFAULT_SNDINFO 34 |
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#define SCTP_AUTH_DEACTIVATE_KEY 35 |
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#define SCTP_REUSE_PORT 36 |
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#define SCTP_PEER_ADDR_THLDS_V2 37 |
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/* Internal Socket Options. Some of the sctp library functions are |
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* implemented using these socket options. |
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*/ |
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#define SCTP_SOCKOPT_BINDX_ADD 100 /* BINDX requests for adding addrs */ |
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#define SCTP_SOCKOPT_BINDX_REM 101 /* BINDX requests for removing addrs. */ |
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#define SCTP_SOCKOPT_PEELOFF 102 /* peel off association. */ |
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/* Options 104-106 are deprecated and removed. Do not use this space */ |
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#define SCTP_SOCKOPT_CONNECTX_OLD 107 /* CONNECTX old requests. */ |
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#define SCTP_GET_PEER_ADDRS 108 /* Get all peer address. */ |
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#define SCTP_GET_LOCAL_ADDRS 109 /* Get all local address. */ |
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#define SCTP_SOCKOPT_CONNECTX 110 /* CONNECTX requests. */ |
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#define SCTP_SOCKOPT_CONNECTX3 111 /* CONNECTX requests (updated) */ |
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#define SCTP_GET_ASSOC_STATS 112 /* Read only */ |
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#define SCTP_PR_SUPPORTED 113 |
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#define SCTP_DEFAULT_PRINFO 114 |
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#define SCTP_PR_ASSOC_STATUS 115 |
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#define SCTP_PR_STREAM_STATUS 116 |
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#define SCTP_RECONFIG_SUPPORTED 117 |
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#define SCTP_ENABLE_STREAM_RESET 118 |
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#define SCTP_RESET_STREAMS 119 |
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#define SCTP_RESET_ASSOC 120 |
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#define SCTP_ADD_STREAMS 121 |
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#define SCTP_SOCKOPT_PEELOFF_FLAGS 122 |
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#define SCTP_STREAM_SCHEDULER 123 |
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#define SCTP_STREAM_SCHEDULER_VALUE 124 |
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#define SCTP_INTERLEAVING_SUPPORTED 125 |
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#define SCTP_SENDMSG_CONNECT 126 |
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#define SCTP_EVENT 127 |
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#define SCTP_ASCONF_SUPPORTED 128 |
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#define SCTP_AUTH_SUPPORTED 129 |
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#define SCTP_ECN_SUPPORTED 130 |
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#define SCTP_EXPOSE_POTENTIALLY_FAILED_STATE 131 |
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#define SCTP_EXPOSE_PF_STATE SCTP_EXPOSE_POTENTIALLY_FAILED_STATE |
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#define SCTP_REMOTE_UDP_ENCAPS_PORT 132 |
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/* PR-SCTP policies */ |
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#define SCTP_PR_SCTP_NONE 0x0000 |
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#define SCTP_PR_SCTP_TTL 0x0010 |
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#define SCTP_PR_SCTP_RTX 0x0020 |
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#define SCTP_PR_SCTP_PRIO 0x0030 |
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#define SCTP_PR_SCTP_MAX SCTP_PR_SCTP_PRIO |
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#define SCTP_PR_SCTP_MASK 0x0030 |
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#define __SCTP_PR_INDEX(x) ((x >> 4) - 1) |
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#define SCTP_PR_INDEX(x) __SCTP_PR_INDEX(SCTP_PR_SCTP_ ## x) |
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#define SCTP_PR_POLICY(x) ((x) & SCTP_PR_SCTP_MASK) |
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#define SCTP_PR_SET_POLICY(flags, x) \ |
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do { \ |
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flags &= ~SCTP_PR_SCTP_MASK; \ |
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flags |= x; \ |
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} while (0) |
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#define SCTP_PR_TTL_ENABLED(x) (SCTP_PR_POLICY(x) == SCTP_PR_SCTP_TTL) |
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#define SCTP_PR_RTX_ENABLED(x) (SCTP_PR_POLICY(x) == SCTP_PR_SCTP_RTX) |
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#define SCTP_PR_PRIO_ENABLED(x) (SCTP_PR_POLICY(x) == SCTP_PR_SCTP_PRIO) |
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/* For enable stream reset */ |
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#define SCTP_ENABLE_RESET_STREAM_REQ 0x01 |
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#define SCTP_ENABLE_RESET_ASSOC_REQ 0x02 |
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#define SCTP_ENABLE_CHANGE_ASSOC_REQ 0x04 |
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#define SCTP_ENABLE_STRRESET_MASK 0x07 |
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#define SCTP_STREAM_RESET_INCOMING 0x01 |
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#define SCTP_STREAM_RESET_OUTGOING 0x02 |
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/* These are bit fields for msghdr->msg_flags. See section 5.1. */ |
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/* On user space Linux, these live in <bits/socket.h> as an enum. */ |
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enum sctp_msg_flags { |
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MSG_NOTIFICATION = 0x8000, |
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#define MSG_NOTIFICATION MSG_NOTIFICATION |
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}; |
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/* 5.3.1 SCTP Initiation Structure (SCTP_INIT) |
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* |
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* This cmsghdr structure provides information for initializing new |
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* SCTP associations with sendmsg(). The SCTP_INITMSG socket option |
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* uses this same data structure. This structure is not used for |
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* recvmsg(). |
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* |
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* cmsg_level cmsg_type cmsg_data[] |
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* ------------ ------------ ---------------------- |
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* IPPROTO_SCTP SCTP_INIT struct sctp_initmsg |
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*/ |
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struct sctp_initmsg { |
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__u16 sinit_num_ostreams; |
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__u16 sinit_max_instreams; |
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__u16 sinit_max_attempts; |
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__u16 sinit_max_init_timeo; |
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}; |
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/* 5.3.2 SCTP Header Information Structure (SCTP_SNDRCV) |
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* |
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* This cmsghdr structure specifies SCTP options for sendmsg() and |
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* describes SCTP header information about a received message through |
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* recvmsg(). |
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* |
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* cmsg_level cmsg_type cmsg_data[] |
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* ------------ ------------ ---------------------- |
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* IPPROTO_SCTP SCTP_SNDRCV struct sctp_sndrcvinfo |
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*/ |
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struct sctp_sndrcvinfo { |
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__u16 sinfo_stream; |
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__u16 sinfo_ssn; |
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__u16 sinfo_flags; |
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__u32 sinfo_ppid; |
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__u32 sinfo_context; |
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__u32 sinfo_timetolive; |
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__u32 sinfo_tsn; |
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__u32 sinfo_cumtsn; |
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sctp_assoc_t sinfo_assoc_id; |
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}; |
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/* 5.3.4 SCTP Send Information Structure (SCTP_SNDINFO) |
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* |
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* This cmsghdr structure specifies SCTP options for sendmsg(). |
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* |
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* cmsg_level cmsg_type cmsg_data[] |
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* ------------ ------------ ------------------- |
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* IPPROTO_SCTP SCTP_SNDINFO struct sctp_sndinfo |
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*/ |
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struct sctp_sndinfo { |
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__u16 snd_sid; |
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__u16 snd_flags; |
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__u32 snd_ppid; |
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__u32 snd_context; |
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sctp_assoc_t snd_assoc_id; |
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}; |
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/* 5.3.5 SCTP Receive Information Structure (SCTP_RCVINFO) |
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* |
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* This cmsghdr structure describes SCTP receive information |
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* about a received message through recvmsg(). |
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* |
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* cmsg_level cmsg_type cmsg_data[] |
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* ------------ ------------ ------------------- |
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* IPPROTO_SCTP SCTP_RCVINFO struct sctp_rcvinfo |
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*/ |
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struct sctp_rcvinfo { |
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__u16 rcv_sid; |
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__u16 rcv_ssn; |
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__u16 rcv_flags; |
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__u32 rcv_ppid; |
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__u32 rcv_tsn; |
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__u32 rcv_cumtsn; |
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__u32 rcv_context; |
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sctp_assoc_t rcv_assoc_id; |
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}; |
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/* 5.3.6 SCTP Next Receive Information Structure (SCTP_NXTINFO) |
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* |
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* This cmsghdr structure describes SCTP receive information |
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* of the next message that will be delivered through recvmsg() |
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* if this information is already available when delivering |
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* the current message. |
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* |
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* cmsg_level cmsg_type cmsg_data[] |
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* ------------ ------------ ------------------- |
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* IPPROTO_SCTP SCTP_NXTINFO struct sctp_nxtinfo |
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*/ |
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struct sctp_nxtinfo { |
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__u16 nxt_sid; |
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__u16 nxt_flags; |
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__u32 nxt_ppid; |
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__u32 nxt_length; |
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sctp_assoc_t nxt_assoc_id; |
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}; |
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/* 5.3.7 SCTP PR-SCTP Information Structure (SCTP_PRINFO) |
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* |
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* This cmsghdr structure specifies SCTP options for sendmsg(). |
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* |
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* cmsg_level cmsg_type cmsg_data[] |
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* ------------ ------------ ------------------- |
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* IPPROTO_SCTP SCTP_PRINFO struct sctp_prinfo |
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*/ |
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struct sctp_prinfo { |
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__u16 pr_policy; |
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__u32 pr_value; |
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}; |
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/* 5.3.8 SCTP AUTH Information Structure (SCTP_AUTHINFO) |
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* |
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* This cmsghdr structure specifies SCTP options for sendmsg(). |
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* |
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* cmsg_level cmsg_type cmsg_data[] |
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* ------------ ------------ ------------------- |
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* IPPROTO_SCTP SCTP_AUTHINFO struct sctp_authinfo |
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*/ |
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struct sctp_authinfo { |
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__u16 auth_keynumber; |
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}; |
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/* |
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* sinfo_flags: 16 bits (unsigned integer) |
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* |
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* This field may contain any of the following flags and is composed of |
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* a bitwise OR of these values. |
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*/ |
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enum sctp_sinfo_flags { |
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SCTP_UNORDERED = (1 << 0), /* Send/receive message unordered. */ |
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SCTP_ADDR_OVER = (1 << 1), /* Override the primary destination. */ |
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SCTP_ABORT = (1 << 2), /* Send an ABORT message to the peer. */ |
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SCTP_SACK_IMMEDIATELY = (1 << 3), /* SACK should be sent without delay. */ |
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/* 2 bits here have been used by SCTP_PR_SCTP_MASK */ |
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SCTP_SENDALL = (1 << 6), |
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SCTP_PR_SCTP_ALL = (1 << 7), |
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SCTP_NOTIFICATION = MSG_NOTIFICATION, /* Next message is not user msg but notification. */ |
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SCTP_EOF = MSG_FIN, /* Initiate graceful shutdown process. */ |
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}; |
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typedef union { |
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__u8 raw; |
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struct sctp_initmsg init; |
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struct sctp_sndrcvinfo sndrcv; |
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} sctp_cmsg_data_t; |
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/* These are cmsg_types. */ |
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typedef enum sctp_cmsg_type { |
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SCTP_INIT, /* 5.2.1 SCTP Initiation Structure */ |
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#define SCTP_INIT SCTP_INIT |
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SCTP_SNDRCV, /* 5.2.2 SCTP Header Information Structure */ |
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#define SCTP_SNDRCV SCTP_SNDRCV |
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SCTP_SNDINFO, /* 5.3.4 SCTP Send Information Structure */ |
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#define SCTP_SNDINFO SCTP_SNDINFO |
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SCTP_RCVINFO, /* 5.3.5 SCTP Receive Information Structure */ |
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#define SCTP_RCVINFO SCTP_RCVINFO |
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SCTP_NXTINFO, /* 5.3.6 SCTP Next Receive Information Structure */ |
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#define SCTP_NXTINFO SCTP_NXTINFO |
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SCTP_PRINFO, /* 5.3.7 SCTP PR-SCTP Information Structure */ |
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#define SCTP_PRINFO SCTP_PRINFO |
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SCTP_AUTHINFO, /* 5.3.8 SCTP AUTH Information Structure */ |
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#define SCTP_AUTHINFO SCTP_AUTHINFO |
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SCTP_DSTADDRV4, /* 5.3.9 SCTP Destination IPv4 Address Structure */ |
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#define SCTP_DSTADDRV4 SCTP_DSTADDRV4 |
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SCTP_DSTADDRV6, /* 5.3.10 SCTP Destination IPv6 Address Structure */ |
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#define SCTP_DSTADDRV6 SCTP_DSTADDRV6 |
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} sctp_cmsg_t; |
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/* |
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* 5.3.1.1 SCTP_ASSOC_CHANGE |
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* |
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* Communication notifications inform the ULP that an SCTP association |
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* has either begun or ended. The identifier for a new association is |
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* provided by this notificaion. The notification information has the |
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* following format: |
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* |
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*/ |
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struct sctp_assoc_change { |
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__u16 sac_type; |
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__u16 sac_flags; |
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__u32 sac_length; |
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__u16 sac_state; |
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__u16 sac_error; |
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__u16 sac_outbound_streams; |
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__u16 sac_inbound_streams; |
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sctp_assoc_t sac_assoc_id; |
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__u8 sac_info[0]; |
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}; |
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/* |
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* sac_state: 32 bits (signed integer) |
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* |
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* This field holds one of a number of values that communicate the |
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* event that happened to the association. They include: |
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* |
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* Note: The following state names deviate from the API draft as |
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* the names clash too easily with other kernel symbols. |
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*/ |
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enum sctp_sac_state { |
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SCTP_COMM_UP, |
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SCTP_COMM_LOST, |
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SCTP_RESTART, |
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SCTP_SHUTDOWN_COMP, |
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SCTP_CANT_STR_ASSOC, |
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}; |
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/* |
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* 5.3.1.2 SCTP_PEER_ADDR_CHANGE |
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* |
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* When a destination address on a multi-homed peer encounters a change |
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* an interface details event is sent. The information has the |
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* following structure: |
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*/ |
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struct sctp_paddr_change { |
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__u16 spc_type; |
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__u16 spc_flags; |
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__u32 spc_length; |
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struct sockaddr_storage spc_aaddr; |
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int spc_state; |
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int spc_error; |
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sctp_assoc_t spc_assoc_id; |
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} __attribute__((packed, aligned(4))); |
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|
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/* |
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* spc_state: 32 bits (signed integer) |
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* |
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* This field holds one of a number of values that communicate the |
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* event that happened to the address. They include: |
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*/ |
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enum sctp_spc_state { |
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SCTP_ADDR_AVAILABLE, |
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SCTP_ADDR_UNREACHABLE, |
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SCTP_ADDR_REMOVED, |
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SCTP_ADDR_ADDED, |
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SCTP_ADDR_MADE_PRIM, |
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SCTP_ADDR_CONFIRMED, |
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SCTP_ADDR_POTENTIALLY_FAILED, |
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#define SCTP_ADDR_PF SCTP_ADDR_POTENTIALLY_FAILED |
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}; |
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/* |
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* 5.3.1.3 SCTP_REMOTE_ERROR |
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* |
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* A remote peer may send an Operational Error message to its peer. |
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* This message indicates a variety of error conditions on an |
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* association. The entire error TLV as it appears on the wire is |
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* included in a SCTP_REMOTE_ERROR event. Please refer to the SCTP |
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* specification [SCTP] and any extensions for a list of possible |
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* error formats. SCTP error TLVs have the format: |
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*/ |
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struct sctp_remote_error { |
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__u16 sre_type; |
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__u16 sre_flags; |
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__u32 sre_length; |
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__be16 sre_error; |
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sctp_assoc_t sre_assoc_id; |
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__u8 sre_data[0]; |
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}; |
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/* |
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* 5.3.1.4 SCTP_SEND_FAILED |
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* |
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* If SCTP cannot deliver a message it may return the message as a |
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* notification. |
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*/ |
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struct sctp_send_failed { |
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__u16 ssf_type; |
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__u16 ssf_flags; |
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__u32 ssf_length; |
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__u32 ssf_error; |
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struct sctp_sndrcvinfo ssf_info; |
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sctp_assoc_t ssf_assoc_id; |
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__u8 ssf_data[0]; |
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}; |
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struct sctp_send_failed_event { |
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__u16 ssf_type; |
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__u16 ssf_flags; |
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__u32 ssf_length; |
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__u32 ssf_error; |
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struct sctp_sndinfo ssfe_info; |
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sctp_assoc_t ssf_assoc_id; |
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__u8 ssf_data[0]; |
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}; |
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|
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/* |
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* ssf_flags: 16 bits (unsigned integer) |
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* |
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* The flag value will take one of the following values |
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* |
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* SCTP_DATA_UNSENT - Indicates that the data was never put on |
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* the wire. |
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* |
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* SCTP_DATA_SENT - Indicates that the data was put on the wire. |
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* Note that this does not necessarily mean that the |
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* data was (or was not) successfully delivered. |
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*/ |
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enum sctp_ssf_flags { |
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SCTP_DATA_UNSENT, |
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SCTP_DATA_SENT, |
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}; |
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|
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/* |
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* 5.3.1.5 SCTP_SHUTDOWN_EVENT |
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* |
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* When a peer sends a SHUTDOWN, SCTP delivers this notification to |
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* inform the application that it should cease sending data. |
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*/ |
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struct sctp_shutdown_event { |
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__u16 sse_type; |
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__u16 sse_flags; |
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__u32 sse_length; |
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sctp_assoc_t sse_assoc_id; |
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}; |
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|
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/* |
|
* 5.3.1.6 SCTP_ADAPTATION_INDICATION |
|
* |
|
* When a peer sends a Adaptation Layer Indication parameter , SCTP |
|
* delivers this notification to inform the application |
|
* that of the peers requested adaptation layer. |
|
*/ |
|
struct sctp_adaptation_event { |
|
__u16 sai_type; |
|
__u16 sai_flags; |
|
__u32 sai_length; |
|
__u32 sai_adaptation_ind; |
|
sctp_assoc_t sai_assoc_id; |
|
}; |
|
|
|
/* |
|
* 5.3.1.7 SCTP_PARTIAL_DELIVERY_EVENT |
|
* |
|
* When a receiver is engaged in a partial delivery of a |
|
* message this notification will be used to indicate |
|
* various events. |
|
*/ |
|
struct sctp_pdapi_event { |
|
__u16 pdapi_type; |
|
__u16 pdapi_flags; |
|
__u32 pdapi_length; |
|
__u32 pdapi_indication; |
|
sctp_assoc_t pdapi_assoc_id; |
|
__u32 pdapi_stream; |
|
__u32 pdapi_seq; |
|
}; |
|
|
|
enum { SCTP_PARTIAL_DELIVERY_ABORTED=0, }; |
|
|
|
/* |
|
* 5.3.1.8. SCTP_AUTHENTICATION_EVENT |
|
* |
|
* When a receiver is using authentication this message will provide |
|
* notifications regarding new keys being made active as well as errors. |
|
*/ |
|
struct sctp_authkey_event { |
|
__u16 auth_type; |
|
__u16 auth_flags; |
|
__u32 auth_length; |
|
__u16 auth_keynumber; |
|
__u16 auth_altkeynumber; |
|
__u32 auth_indication; |
|
sctp_assoc_t auth_assoc_id; |
|
}; |
|
|
|
enum { |
|
SCTP_AUTH_NEW_KEY, |
|
#define SCTP_AUTH_NEWKEY SCTP_AUTH_NEW_KEY /* compatible with before */ |
|
SCTP_AUTH_FREE_KEY, |
|
SCTP_AUTH_NO_AUTH, |
|
}; |
|
|
|
/* |
|
* 6.1.9. SCTP_SENDER_DRY_EVENT |
|
* |
|
* When the SCTP stack has no more user data to send or retransmit, this |
|
* notification is given to the user. Also, at the time when a user app |
|
* subscribes to this event, if there is no data to be sent or |
|
* retransmit, the stack will immediately send up this notification. |
|
*/ |
|
struct sctp_sender_dry_event { |
|
__u16 sender_dry_type; |
|
__u16 sender_dry_flags; |
|
__u32 sender_dry_length; |
|
sctp_assoc_t sender_dry_assoc_id; |
|
}; |
|
|
|
#define SCTP_STREAM_RESET_INCOMING_SSN 0x0001 |
|
#define SCTP_STREAM_RESET_OUTGOING_SSN 0x0002 |
|
#define SCTP_STREAM_RESET_DENIED 0x0004 |
|
#define SCTP_STREAM_RESET_FAILED 0x0008 |
|
struct sctp_stream_reset_event { |
|
__u16 strreset_type; |
|
__u16 strreset_flags; |
|
__u32 strreset_length; |
|
sctp_assoc_t strreset_assoc_id; |
|
__u16 strreset_stream_list[]; |
|
}; |
|
|
|
#define SCTP_ASSOC_RESET_DENIED 0x0004 |
|
#define SCTP_ASSOC_RESET_FAILED 0x0008 |
|
struct sctp_assoc_reset_event { |
|
__u16 assocreset_type; |
|
__u16 assocreset_flags; |
|
__u32 assocreset_length; |
|
sctp_assoc_t assocreset_assoc_id; |
|
__u32 assocreset_local_tsn; |
|
__u32 assocreset_remote_tsn; |
|
}; |
|
|
|
#define SCTP_ASSOC_CHANGE_DENIED 0x0004 |
|
#define SCTP_ASSOC_CHANGE_FAILED 0x0008 |
|
#define SCTP_STREAM_CHANGE_DENIED SCTP_ASSOC_CHANGE_DENIED |
|
#define SCTP_STREAM_CHANGE_FAILED SCTP_ASSOC_CHANGE_FAILED |
|
struct sctp_stream_change_event { |
|
__u16 strchange_type; |
|
__u16 strchange_flags; |
|
__u32 strchange_length; |
|
sctp_assoc_t strchange_assoc_id; |
|
__u16 strchange_instrms; |
|
__u16 strchange_outstrms; |
|
}; |
|
|
|
/* |
|
* Described in Section 7.3 |
|
* Ancillary Data and Notification Interest Options |
|
*/ |
|
struct sctp_event_subscribe { |
|
__u8 sctp_data_io_event; |
|
__u8 sctp_association_event; |
|
__u8 sctp_address_event; |
|
__u8 sctp_send_failure_event; |
|
__u8 sctp_peer_error_event; |
|
__u8 sctp_shutdown_event; |
|
__u8 sctp_partial_delivery_event; |
|
__u8 sctp_adaptation_layer_event; |
|
__u8 sctp_authentication_event; |
|
__u8 sctp_sender_dry_event; |
|
__u8 sctp_stream_reset_event; |
|
__u8 sctp_assoc_reset_event; |
|
__u8 sctp_stream_change_event; |
|
__u8 sctp_send_failure_event_event; |
|
}; |
|
|
|
/* |
|
* 5.3.1 SCTP Notification Structure |
|
* |
|
* The notification structure is defined as the union of all |
|
* notification types. |
|
* |
|
*/ |
|
union sctp_notification { |
|
struct { |
|
__u16 sn_type; /* Notification type. */ |
|
__u16 sn_flags; |
|
__u32 sn_length; |
|
} sn_header; |
|
struct sctp_assoc_change sn_assoc_change; |
|
struct sctp_paddr_change sn_paddr_change; |
|
struct sctp_remote_error sn_remote_error; |
|
struct sctp_send_failed sn_send_failed; |
|
struct sctp_shutdown_event sn_shutdown_event; |
|
struct sctp_adaptation_event sn_adaptation_event; |
|
struct sctp_pdapi_event sn_pdapi_event; |
|
struct sctp_authkey_event sn_authkey_event; |
|
struct sctp_sender_dry_event sn_sender_dry_event; |
|
struct sctp_stream_reset_event sn_strreset_event; |
|
struct sctp_assoc_reset_event sn_assocreset_event; |
|
struct sctp_stream_change_event sn_strchange_event; |
|
struct sctp_send_failed_event sn_send_failed_event; |
|
}; |
|
|
|
/* Section 5.3.1 |
|
* All standard values for sn_type flags are greater than 2^15. |
|
* Values from 2^15 and down are reserved. |
|
*/ |
|
|
|
enum sctp_sn_type { |
|
SCTP_SN_TYPE_BASE = (1<<15), |
|
SCTP_DATA_IO_EVENT = SCTP_SN_TYPE_BASE, |
|
#define SCTP_DATA_IO_EVENT SCTP_DATA_IO_EVENT |
|
SCTP_ASSOC_CHANGE, |
|
#define SCTP_ASSOC_CHANGE SCTP_ASSOC_CHANGE |
|
SCTP_PEER_ADDR_CHANGE, |
|
#define SCTP_PEER_ADDR_CHANGE SCTP_PEER_ADDR_CHANGE |
|
SCTP_SEND_FAILED, |
|
#define SCTP_SEND_FAILED SCTP_SEND_FAILED |
|
SCTP_REMOTE_ERROR, |
|
#define SCTP_REMOTE_ERROR SCTP_REMOTE_ERROR |
|
SCTP_SHUTDOWN_EVENT, |
|
#define SCTP_SHUTDOWN_EVENT SCTP_SHUTDOWN_EVENT |
|
SCTP_PARTIAL_DELIVERY_EVENT, |
|
#define SCTP_PARTIAL_DELIVERY_EVENT SCTP_PARTIAL_DELIVERY_EVENT |
|
SCTP_ADAPTATION_INDICATION, |
|
#define SCTP_ADAPTATION_INDICATION SCTP_ADAPTATION_INDICATION |
|
SCTP_AUTHENTICATION_EVENT, |
|
#define SCTP_AUTHENTICATION_INDICATION SCTP_AUTHENTICATION_EVENT |
|
SCTP_SENDER_DRY_EVENT, |
|
#define SCTP_SENDER_DRY_EVENT SCTP_SENDER_DRY_EVENT |
|
SCTP_STREAM_RESET_EVENT, |
|
#define SCTP_STREAM_RESET_EVENT SCTP_STREAM_RESET_EVENT |
|
SCTP_ASSOC_RESET_EVENT, |
|
#define SCTP_ASSOC_RESET_EVENT SCTP_ASSOC_RESET_EVENT |
|
SCTP_STREAM_CHANGE_EVENT, |
|
#define SCTP_STREAM_CHANGE_EVENT SCTP_STREAM_CHANGE_EVENT |
|
SCTP_SEND_FAILED_EVENT, |
|
#define SCTP_SEND_FAILED_EVENT SCTP_SEND_FAILED_EVENT |
|
SCTP_SN_TYPE_MAX = SCTP_SEND_FAILED_EVENT, |
|
#define SCTP_SN_TYPE_MAX SCTP_SN_TYPE_MAX |
|
}; |
|
|
|
/* Notification error codes used to fill up the error fields in some |
|
* notifications. |
|
* SCTP_PEER_ADDRESS_CHAGE : spc_error |
|
* SCTP_ASSOC_CHANGE : sac_error |
|
* These names should be potentially included in the draft 04 of the SCTP |
|
* sockets API specification. |
|
*/ |
|
typedef enum sctp_sn_error { |
|
SCTP_FAILED_THRESHOLD, |
|
SCTP_RECEIVED_SACK, |
|
SCTP_HEARTBEAT_SUCCESS, |
|
SCTP_RESPONSE_TO_USER_REQ, |
|
SCTP_INTERNAL_ERROR, |
|
SCTP_SHUTDOWN_GUARD_EXPIRES, |
|
SCTP_PEER_FAULTY, |
|
} sctp_sn_error_t; |
|
|
|
/* |
|
* 7.1.1 Retransmission Timeout Parameters (SCTP_RTOINFO) |
|
* |
|
* The protocol parameters used to initialize and bound retransmission |
|
* timeout (RTO) are tunable. See [SCTP] for more information on how |
|
* these parameters are used in RTO calculation. |
|
*/ |
|
struct sctp_rtoinfo { |
|
sctp_assoc_t srto_assoc_id; |
|
__u32 srto_initial; |
|
__u32 srto_max; |
|
__u32 srto_min; |
|
}; |
|
|
|
/* |
|
* 7.1.2 Association Parameters (SCTP_ASSOCINFO) |
|
* |
|
* This option is used to both examine and set various association and |
|
* endpoint parameters. |
|
*/ |
|
struct sctp_assocparams { |
|
sctp_assoc_t sasoc_assoc_id; |
|
__u16 sasoc_asocmaxrxt; |
|
__u16 sasoc_number_peer_destinations; |
|
__u32 sasoc_peer_rwnd; |
|
__u32 sasoc_local_rwnd; |
|
__u32 sasoc_cookie_life; |
|
}; |
|
|
|
/* |
|
* 7.1.9 Set Peer Primary Address (SCTP_SET_PEER_PRIMARY_ADDR) |
|
* |
|
* Requests that the peer mark the enclosed address as the association |
|
* primary. The enclosed address must be one of the association's |
|
* locally bound addresses. The following structure is used to make a |
|
* set primary request: |
|
*/ |
|
struct sctp_setpeerprim { |
|
sctp_assoc_t sspp_assoc_id; |
|
struct sockaddr_storage sspp_addr; |
|
} __attribute__((packed, aligned(4))); |
|
|
|
/* |
|
* 7.1.10 Set Primary Address (SCTP_PRIMARY_ADDR) |
|
* |
|
* Requests that the local SCTP stack use the enclosed peer address as |
|
* the association primary. The enclosed address must be one of the |
|
* association peer's addresses. The following structure is used to |
|
* make a set peer primary request: |
|
*/ |
|
struct sctp_prim { |
|
sctp_assoc_t ssp_assoc_id; |
|
struct sockaddr_storage ssp_addr; |
|
} __attribute__((packed, aligned(4))); |
|
|
|
/* For backward compatibility use, define the old name too */ |
|
#define sctp_setprim sctp_prim |
|
|
|
/* |
|
* 7.1.11 Set Adaptation Layer Indicator (SCTP_ADAPTATION_LAYER) |
|
* |
|
* Requests that the local endpoint set the specified Adaptation Layer |
|
* Indication parameter for all future INIT and INIT-ACK exchanges. |
|
*/ |
|
struct sctp_setadaptation { |
|
__u32 ssb_adaptation_ind; |
|
}; |
|
|
|
/* |
|
* 7.1.13 Peer Address Parameters (SCTP_PEER_ADDR_PARAMS) |
|
* |
|
* Applications can enable or disable heartbeats for any peer address |
|
* of an association, modify an address's heartbeat interval, force a |
|
* heartbeat to be sent immediately, and adjust the address's maximum |
|
* number of retransmissions sent before an address is considered |
|
* unreachable. The following structure is used to access and modify an |
|
* address's parameters: |
|
*/ |
|
enum sctp_spp_flags { |
|
SPP_HB_ENABLE = 1<<0, /*Enable heartbeats*/ |
|
SPP_HB_DISABLE = 1<<1, /*Disable heartbeats*/ |
|
SPP_HB = SPP_HB_ENABLE | SPP_HB_DISABLE, |
|
SPP_HB_DEMAND = 1<<2, /*Send heartbeat immediately*/ |
|
SPP_PMTUD_ENABLE = 1<<3, /*Enable PMTU discovery*/ |
|
SPP_PMTUD_DISABLE = 1<<4, /*Disable PMTU discovery*/ |
|
SPP_PMTUD = SPP_PMTUD_ENABLE | SPP_PMTUD_DISABLE, |
|
SPP_SACKDELAY_ENABLE = 1<<5, /*Enable SACK*/ |
|
SPP_SACKDELAY_DISABLE = 1<<6, /*Disable SACK*/ |
|
SPP_SACKDELAY = SPP_SACKDELAY_ENABLE | SPP_SACKDELAY_DISABLE, |
|
SPP_HB_TIME_IS_ZERO = 1<<7, /* Set HB delay to 0 */ |
|
SPP_IPV6_FLOWLABEL = 1<<8, |
|
SPP_DSCP = 1<<9, |
|
}; |
|
|
|
struct sctp_paddrparams { |
|
sctp_assoc_t spp_assoc_id; |
|
struct sockaddr_storage spp_address; |
|
__u32 spp_hbinterval; |
|
__u16 spp_pathmaxrxt; |
|
__u32 spp_pathmtu; |
|
__u32 spp_sackdelay; |
|
__u32 spp_flags; |
|
__u32 spp_ipv6_flowlabel; |
|
__u8 spp_dscp; |
|
} __attribute__((packed, aligned(4))); |
|
|
|
/* |
|
* 7.1.18. Add a chunk that must be authenticated (SCTP_AUTH_CHUNK) |
|
* |
|
* This set option adds a chunk type that the user is requesting to be |
|
* received only in an authenticated way. Changes to the list of chunks |
|
* will only effect future associations on the socket. |
|
*/ |
|
struct sctp_authchunk { |
|
__u8 sauth_chunk; |
|
}; |
|
|
|
/* |
|
* 7.1.19. Get or set the list of supported HMAC Identifiers (SCTP_HMAC_IDENT) |
|
* |
|
* This option gets or sets the list of HMAC algorithms that the local |
|
* endpoint requires the peer to use. |
|
*/ |
|
#ifndef __KERNEL__ |
|
/* This here is only used by user space as is. It might not be a good idea |
|
* to export/reveal the whole structure with reserved fields etc. |
|
*/ |
|
enum { |
|
SCTP_AUTH_HMAC_ID_SHA1 = 1, |
|
SCTP_AUTH_HMAC_ID_SHA256 = 3, |
|
}; |
|
#endif |
|
|
|
struct sctp_hmacalgo { |
|
__u32 shmac_num_idents; |
|
__u16 shmac_idents[]; |
|
}; |
|
|
|
/* Sadly, user and kernel space have different names for |
|
* this structure member, so this is to not break anything. |
|
*/ |
|
#define shmac_number_of_idents shmac_num_idents |
|
|
|
/* |
|
* 7.1.20. Set a shared key (SCTP_AUTH_KEY) |
|
* |
|
* This option will set a shared secret key which is used to build an |
|
* association shared key. |
|
*/ |
|
struct sctp_authkey { |
|
sctp_assoc_t sca_assoc_id; |
|
__u16 sca_keynumber; |
|
__u16 sca_keylength; |
|
__u8 sca_key[]; |
|
}; |
|
|
|
/* |
|
* 7.1.21. Get or set the active shared key (SCTP_AUTH_ACTIVE_KEY) |
|
* |
|
* This option will get or set the active shared key to be used to build |
|
* the association shared key. |
|
*/ |
|
|
|
struct sctp_authkeyid { |
|
sctp_assoc_t scact_assoc_id; |
|
__u16 scact_keynumber; |
|
}; |
|
|
|
|
|
/* |
|
* 7.1.23. Get or set delayed ack timer (SCTP_DELAYED_SACK) |
|
* |
|
* This option will effect the way delayed acks are performed. This |
|
* option allows you to get or set the delayed ack time, in |
|
* milliseconds. It also allows changing the delayed ack frequency. |
|
* Changing the frequency to 1 disables the delayed sack algorithm. If |
|
* the assoc_id is 0, then this sets or gets the endpoints default |
|
* values. If the assoc_id field is non-zero, then the set or get |
|
* effects the specified association for the one to many model (the |
|
* assoc_id field is ignored by the one to one model). Note that if |
|
* sack_delay or sack_freq are 0 when setting this option, then the |
|
* current values will remain unchanged. |
|
*/ |
|
struct sctp_sack_info { |
|
sctp_assoc_t sack_assoc_id; |
|
uint32_t sack_delay; |
|
uint32_t sack_freq; |
|
}; |
|
|
|
struct sctp_assoc_value { |
|
sctp_assoc_t assoc_id; |
|
uint32_t assoc_value; |
|
}; |
|
|
|
struct sctp_stream_value { |
|
sctp_assoc_t assoc_id; |
|
uint16_t stream_id; |
|
uint16_t stream_value; |
|
}; |
|
|
|
/* |
|
* 7.2.2 Peer Address Information |
|
* |
|
* Applications can retrieve information about a specific peer address |
|
* of an association, including its reachability state, congestion |
|
* window, and retransmission timer values. This information is |
|
* read-only. The following structure is used to access this |
|
* information: |
|
*/ |
|
struct sctp_paddrinfo { |
|
sctp_assoc_t spinfo_assoc_id; |
|
struct sockaddr_storage spinfo_address; |
|
__s32 spinfo_state; |
|
__u32 spinfo_cwnd; |
|
__u32 spinfo_srtt; |
|
__u32 spinfo_rto; |
|
__u32 spinfo_mtu; |
|
} __attribute__((packed, aligned(4))); |
|
|
|
/* Peer addresses's state. */ |
|
/* UNKNOWN: Peer address passed by the upper layer in sendmsg or connect[x] |
|
* calls. |
|
* UNCONFIRMED: Peer address received in INIT/INIT-ACK address parameters. |
|
* Not yet confirmed by a heartbeat and not available for data |
|
* transfers. |
|
* ACTIVE : Peer address confirmed, active and available for data transfers. |
|
* INACTIVE: Peer address inactive and not available for data transfers. |
|
*/ |
|
enum sctp_spinfo_state { |
|
SCTP_INACTIVE, |
|
SCTP_PF, |
|
#define SCTP_POTENTIALLY_FAILED SCTP_PF |
|
SCTP_ACTIVE, |
|
SCTP_UNCONFIRMED, |
|
SCTP_UNKNOWN = 0xffff /* Value used for transport state unknown */ |
|
}; |
|
|
|
/* |
|
* 7.2.1 Association Status (SCTP_STATUS) |
|
* |
|
* Applications can retrieve current status information about an |
|
* association, including association state, peer receiver window size, |
|
* number of unacked data chunks, and number of data chunks pending |
|
* receipt. This information is read-only. The following structure is |
|
* used to access this information: |
|
*/ |
|
struct sctp_status { |
|
sctp_assoc_t sstat_assoc_id; |
|
__s32 sstat_state; |
|
__u32 sstat_rwnd; |
|
__u16 sstat_unackdata; |
|
__u16 sstat_penddata; |
|
__u16 sstat_instrms; |
|
__u16 sstat_outstrms; |
|
__u32 sstat_fragmentation_point; |
|
struct sctp_paddrinfo sstat_primary; |
|
}; |
|
|
|
/* |
|
* 7.2.3. Get the list of chunks the peer requires to be authenticated |
|
* (SCTP_PEER_AUTH_CHUNKS) |
|
* |
|
* This option gets a list of chunks for a specified association that |
|
* the peer requires to be received authenticated only. |
|
*/ |
|
struct sctp_authchunks { |
|
sctp_assoc_t gauth_assoc_id; |
|
__u32 gauth_number_of_chunks; |
|
uint8_t gauth_chunks[]; |
|
}; |
|
|
|
/* The broken spelling has been released already in lksctp-tools header, |
|
* so don't break anyone, now that it's fixed. |
|
*/ |
|
#define guth_number_of_chunks gauth_number_of_chunks |
|
|
|
/* Association states. */ |
|
enum sctp_sstat_state { |
|
SCTP_EMPTY = 0, |
|
SCTP_CLOSED = 1, |
|
SCTP_COOKIE_WAIT = 2, |
|
SCTP_COOKIE_ECHOED = 3, |
|
SCTP_ESTABLISHED = 4, |
|
SCTP_SHUTDOWN_PENDING = 5, |
|
SCTP_SHUTDOWN_SENT = 6, |
|
SCTP_SHUTDOWN_RECEIVED = 7, |
|
SCTP_SHUTDOWN_ACK_SENT = 8, |
|
}; |
|
|
|
/* |
|
* 8.2.6. Get the Current Identifiers of Associations |
|
* (SCTP_GET_ASSOC_ID_LIST) |
|
* |
|
* This option gets the current list of SCTP association identifiers of |
|
* the SCTP associations handled by a one-to-many style socket. |
|
*/ |
|
struct sctp_assoc_ids { |
|
__u32 gaids_number_of_ids; |
|
sctp_assoc_t gaids_assoc_id[]; |
|
}; |
|
|
|
/* |
|
* 8.3, 8.5 get all peer/local addresses in an association. |
|
* This parameter struct is used by SCTP_GET_PEER_ADDRS and |
|
* SCTP_GET_LOCAL_ADDRS socket options used internally to implement |
|
* sctp_getpaddrs() and sctp_getladdrs() API. |
|
*/ |
|
struct sctp_getaddrs_old { |
|
sctp_assoc_t assoc_id; |
|
int addr_num; |
|
#ifdef __KERNEL__ |
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struct sockaddr __user *addrs; |
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#else |
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struct sockaddr *addrs; |
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#endif |
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}; |
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|
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struct sctp_getaddrs { |
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sctp_assoc_t assoc_id; /*input*/ |
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__u32 addr_num; /*output*/ |
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__u8 addrs[0]; /*output, variable size*/ |
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}; |
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|
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/* A socket user request obtained via SCTP_GET_ASSOC_STATS that retrieves |
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* association stats. All stats are counts except sas_maxrto and |
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* sas_obs_rto_ipaddr. maxrto is the max observed rto + transport since |
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* the last call. Will return 0 when RTO was not update since last call |
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*/ |
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struct sctp_assoc_stats { |
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sctp_assoc_t sas_assoc_id; /* Input */ |
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/* Transport of observed max RTO */ |
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struct sockaddr_storage sas_obs_rto_ipaddr; |
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__u64 sas_maxrto; /* Maximum Observed RTO for period */ |
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__u64 sas_isacks; /* SACKs received */ |
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__u64 sas_osacks; /* SACKs sent */ |
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__u64 sas_opackets; /* Packets sent */ |
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__u64 sas_ipackets; /* Packets received */ |
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__u64 sas_rtxchunks; /* Retransmitted Chunks */ |
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__u64 sas_outofseqtsns;/* TSN received > next expected */ |
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__u64 sas_idupchunks; /* Dups received (ordered+unordered) */ |
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__u64 sas_gapcnt; /* Gap Acknowledgements Received */ |
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__u64 sas_ouodchunks; /* Unordered data chunks sent */ |
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__u64 sas_iuodchunks; /* Unordered data chunks received */ |
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__u64 sas_oodchunks; /* Ordered data chunks sent */ |
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__u64 sas_iodchunks; /* Ordered data chunks received */ |
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__u64 sas_octrlchunks; /* Control chunks sent */ |
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__u64 sas_ictrlchunks; /* Control chunks received */ |
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}; |
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|
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/* |
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* 8.1 sctp_bindx() |
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* |
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* The flags parameter is formed from the bitwise OR of zero or more of the |
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* following currently defined flags: |
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*/ |
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#define SCTP_BINDX_ADD_ADDR 0x01 |
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#define SCTP_BINDX_REM_ADDR 0x02 |
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|
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/* This is the structure that is passed as an argument(optval) to |
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* getsockopt(SCTP_SOCKOPT_PEELOFF). |
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*/ |
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typedef struct { |
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sctp_assoc_t associd; |
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int sd; |
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} sctp_peeloff_arg_t; |
|
|
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typedef struct { |
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sctp_peeloff_arg_t p_arg; |
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unsigned flags; |
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} sctp_peeloff_flags_arg_t; |
|
|
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/* |
|
* Peer Address Thresholds socket option |
|
*/ |
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struct sctp_paddrthlds { |
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sctp_assoc_t spt_assoc_id; |
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struct sockaddr_storage spt_address; |
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__u16 spt_pathmaxrxt; |
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__u16 spt_pathpfthld; |
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}; |
|
|
|
/* Use a new structure with spt_pathcpthld for back compatibility */ |
|
struct sctp_paddrthlds_v2 { |
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sctp_assoc_t spt_assoc_id; |
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struct sockaddr_storage spt_address; |
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__u16 spt_pathmaxrxt; |
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__u16 spt_pathpfthld; |
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__u16 spt_pathcpthld; |
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}; |
|
|
|
/* |
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* Socket Option for Getting the Association/Stream-Specific PR-SCTP Status |
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*/ |
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struct sctp_prstatus { |
|
sctp_assoc_t sprstat_assoc_id; |
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__u16 sprstat_sid; |
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__u16 sprstat_policy; |
|
__u64 sprstat_abandoned_unsent; |
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__u64 sprstat_abandoned_sent; |
|
}; |
|
|
|
struct sctp_default_prinfo { |
|
sctp_assoc_t pr_assoc_id; |
|
__u32 pr_value; |
|
__u16 pr_policy; |
|
}; |
|
|
|
struct sctp_info { |
|
__u32 sctpi_tag; |
|
__u32 sctpi_state; |
|
__u32 sctpi_rwnd; |
|
__u16 sctpi_unackdata; |
|
__u16 sctpi_penddata; |
|
__u16 sctpi_instrms; |
|
__u16 sctpi_outstrms; |
|
__u32 sctpi_fragmentation_point; |
|
__u32 sctpi_inqueue; |
|
__u32 sctpi_outqueue; |
|
__u32 sctpi_overall_error; |
|
__u32 sctpi_max_burst; |
|
__u32 sctpi_maxseg; |
|
__u32 sctpi_peer_rwnd; |
|
__u32 sctpi_peer_tag; |
|
__u8 sctpi_peer_capable; |
|
__u8 sctpi_peer_sack; |
|
__u16 __reserved1; |
|
|
|
/* assoc status info */ |
|
__u64 sctpi_isacks; |
|
__u64 sctpi_osacks; |
|
__u64 sctpi_opackets; |
|
__u64 sctpi_ipackets; |
|
__u64 sctpi_rtxchunks; |
|
__u64 sctpi_outofseqtsns; |
|
__u64 sctpi_idupchunks; |
|
__u64 sctpi_gapcnt; |
|
__u64 sctpi_ouodchunks; |
|
__u64 sctpi_iuodchunks; |
|
__u64 sctpi_oodchunks; |
|
__u64 sctpi_iodchunks; |
|
__u64 sctpi_octrlchunks; |
|
__u64 sctpi_ictrlchunks; |
|
|
|
/* primary transport info */ |
|
struct sockaddr_storage sctpi_p_address; |
|
__s32 sctpi_p_state; |
|
__u32 sctpi_p_cwnd; |
|
__u32 sctpi_p_srtt; |
|
__u32 sctpi_p_rto; |
|
__u32 sctpi_p_hbinterval; |
|
__u32 sctpi_p_pathmaxrxt; |
|
__u32 sctpi_p_sackdelay; |
|
__u32 sctpi_p_sackfreq; |
|
__u32 sctpi_p_ssthresh; |
|
__u32 sctpi_p_partial_bytes_acked; |
|
__u32 sctpi_p_flight_size; |
|
__u16 sctpi_p_error; |
|
__u16 __reserved2; |
|
|
|
/* sctp sock info */ |
|
__u32 sctpi_s_autoclose; |
|
__u32 sctpi_s_adaptation_ind; |
|
__u32 sctpi_s_pd_point; |
|
__u8 sctpi_s_nodelay; |
|
__u8 sctpi_s_disable_fragments; |
|
__u8 sctpi_s_v4mapped; |
|
__u8 sctpi_s_frag_interleave; |
|
__u32 sctpi_s_type; |
|
__u32 __reserved3; |
|
}; |
|
|
|
struct sctp_reset_streams { |
|
sctp_assoc_t srs_assoc_id; |
|
uint16_t srs_flags; |
|
uint16_t srs_number_streams; /* 0 == ALL */ |
|
uint16_t srs_stream_list[]; /* list if srs_num_streams is not 0 */ |
|
}; |
|
|
|
struct sctp_add_streams { |
|
sctp_assoc_t sas_assoc_id; |
|
uint16_t sas_instrms; |
|
uint16_t sas_outstrms; |
|
}; |
|
|
|
struct sctp_event { |
|
sctp_assoc_t se_assoc_id; |
|
uint16_t se_type; |
|
uint8_t se_on; |
|
}; |
|
|
|
struct sctp_udpencaps { |
|
sctp_assoc_t sue_assoc_id; |
|
struct sockaddr_storage sue_address; |
|
uint16_t sue_port; |
|
}; |
|
|
|
/* SCTP Stream schedulers */ |
|
enum sctp_sched_type { |
|
SCTP_SS_FCFS, |
|
SCTP_SS_DEFAULT = SCTP_SS_FCFS, |
|
SCTP_SS_PRIO, |
|
SCTP_SS_RR, |
|
SCTP_SS_MAX = SCTP_SS_RR |
|
}; |
|
|
|
#endif /* _UAPI_SCTP_H */
|
|
|