Restoring authorship annotation for <orivej@yandex-team.ru>. Commit 1 of 2.

1 files changed, 1203 insertions, 1203 deletions

diff --git a/contrib/libs/linux-headers/linux/sctp.h b/contrib/libs/linux-headers/linux/sctp.h
index 63f9cf715d..4feb47a2fd 100644
--- a/contrib/libs/linux-headers/linux/sctp.h
+++ b/contrib/libs/linux-headers/linux/sctp.h
@@ -1,1203 +1,1203 @@
-/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
-/* SCTP kernel implementation
- * (C) Copyright IBM Corp. 2001, 2004
- * Copyright (c) 1999-2000 Cisco, Inc.
- * Copyright (c) 1999-2001 Motorola, Inc.
- * Copyright (c) 2002 Intel Corp.
- *
- * This file is part of the SCTP kernel implementation
- *
- * This header represents the structures and constants needed to support
- * the SCTP Extension to the Sockets API.
- *
- * This SCTP implementation is free software;
- * you can redistribute it and/or modify it under the terms of
- * the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This SCTP implementation is distributed in the hope that it
- * will be useful, but WITHOUT ANY WARRANTY; without even the implied
- *                 ************************
- * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- * See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with GNU CC; see the file COPYING.  If not, see
- * <http://www.gnu.org/licenses/>.
- *
- * Please send any bug reports or fixes you make to the
- * email address(es):
- *    lksctp developers <linux-sctp@vger.kernel.org>
- *
- * Or submit a bug report through the following website:
- *    http://www.sf.net/projects/lksctp
- *
- * Written or modified by:
- *    La Monte H.P. Yarroll    <piggy@acm.org>
- *    R. Stewart               <randall@sctp.chicago.il.us>
- *    K. Morneau               <kmorneau@cisco.com>
- *    Q. Xie                   <qxie1@email.mot.com>
- *    Karl Knutson             <karl@athena.chicago.il.us>
- *    Jon Grimm                <jgrimm@us.ibm.com>
- *    Daisy Chang              <daisyc@us.ibm.com>
- *    Ryan Layer               <rmlayer@us.ibm.com>
- *    Ardelle Fan              <ardelle.fan@intel.com>
- *    Sridhar Samudrala        <sri@us.ibm.com>
- *    Inaky Perez-Gonzalez     <inaky.gonzalez@intel.com>
- *    Vlad Yasevich            <vladislav.yasevich@hp.com>
- *
- * Any bugs reported given to us we will try to fix... any fixes shared will
- * be incorporated into the next SCTP release.
- */
-
-#ifndef _SCTP_H
-#define _SCTP_H
-
-#include <linux/types.h>
-#include <linux/socket.h>
-
-typedef __s32 sctp_assoc_t;
-
-#define SCTP_FUTURE_ASSOC	0
-#define SCTP_CURRENT_ASSOC	1
-#define SCTP_ALL_ASSOC		2
-
-/* The following symbols come from the Sockets API Extensions for
- * SCTP <draft-ietf-tsvwg-sctpsocket-07.txt>.
- */
-#define SCTP_RTOINFO	0
-#define SCTP_ASSOCINFO  1
-#define SCTP_INITMSG	2
-#define SCTP_NODELAY	3		/* Get/set nodelay option. */
-#define SCTP_AUTOCLOSE	4
-#define SCTP_SET_PEER_PRIMARY_ADDR 5
-#define SCTP_PRIMARY_ADDR	6
-#define SCTP_ADAPTATION_LAYER	7
-#define SCTP_DISABLE_FRAGMENTS	8
-#define SCTP_PEER_ADDR_PARAMS	9
-#define SCTP_DEFAULT_SEND_PARAM	10
-#define SCTP_EVENTS	11
-#define SCTP_I_WANT_MAPPED_V4_ADDR 12	/* Turn on/off mapped v4 addresses  */
-#define SCTP_MAXSEG	13		/* Get/set maximum fragment. */
-#define SCTP_STATUS	14
-#define SCTP_GET_PEER_ADDR_INFO	15
-#define SCTP_DELAYED_ACK_TIME	16
-#define SCTP_DELAYED_ACK SCTP_DELAYED_ACK_TIME
-#define SCTP_DELAYED_SACK SCTP_DELAYED_ACK_TIME
-#define SCTP_CONTEXT	17
-#define SCTP_FRAGMENT_INTERLEAVE	18
-#define SCTP_PARTIAL_DELIVERY_POINT	19 /* Set/Get partial delivery point */
-#define SCTP_MAX_BURST	20		/* Set/Get max burst */
-#define SCTP_AUTH_CHUNK	21	/* Set only: add a chunk type to authenticate */
-#define SCTP_HMAC_IDENT	22
-#define SCTP_AUTH_KEY	23
-#define SCTP_AUTH_ACTIVE_KEY	24
-#define SCTP_AUTH_DELETE_KEY	25
-#define SCTP_PEER_AUTH_CHUNKS	26	/* Read only */
-#define SCTP_LOCAL_AUTH_CHUNKS	27	/* Read only */
-#define SCTP_GET_ASSOC_NUMBER	28	/* Read only */
-#define SCTP_GET_ASSOC_ID_LIST	29	/* Read only */
-#define SCTP_AUTO_ASCONF       30
-#define SCTP_PEER_ADDR_THLDS	31
-#define SCTP_RECVRCVINFO	32
-#define SCTP_RECVNXTINFO	33
-#define SCTP_DEFAULT_SNDINFO	34
-#define SCTP_AUTH_DEACTIVATE_KEY	35
-#define SCTP_REUSE_PORT		36
-#define SCTP_PEER_ADDR_THLDS_V2	37
-
-/* Internal Socket Options. Some of the sctp library functions are
- * implemented using these socket options.
- */
-#define SCTP_SOCKOPT_BINDX_ADD	100	/* BINDX requests for adding addrs */
-#define SCTP_SOCKOPT_BINDX_REM	101	/* BINDX requests for removing addrs. */
-#define SCTP_SOCKOPT_PEELOFF	102	/* peel off association. */
-/* Options 104-106 are deprecated and removed. Do not use this space */
-#define SCTP_SOCKOPT_CONNECTX_OLD	107	/* CONNECTX old requests. */
-#define SCTP_GET_PEER_ADDRS	108		/* Get all peer address. */
-#define SCTP_GET_LOCAL_ADDRS	109		/* Get all local address. */
-#define SCTP_SOCKOPT_CONNECTX	110		/* CONNECTX requests. */
-#define SCTP_SOCKOPT_CONNECTX3	111	/* CONNECTX requests (updated) */
-#define SCTP_GET_ASSOC_STATS	112	/* Read only */
-#define SCTP_PR_SUPPORTED	113
-#define SCTP_DEFAULT_PRINFO	114
-#define SCTP_PR_ASSOC_STATUS	115
-#define SCTP_PR_STREAM_STATUS	116
-#define SCTP_RECONFIG_SUPPORTED	117
-#define SCTP_ENABLE_STREAM_RESET	118
-#define SCTP_RESET_STREAMS	119
-#define SCTP_RESET_ASSOC	120
-#define SCTP_ADD_STREAMS	121
-#define SCTP_SOCKOPT_PEELOFF_FLAGS 122
-#define SCTP_STREAM_SCHEDULER	123
-#define SCTP_STREAM_SCHEDULER_VALUE	124
-#define SCTP_INTERLEAVING_SUPPORTED	125
-#define SCTP_SENDMSG_CONNECT	126
-#define SCTP_EVENT	127
-#define SCTP_ASCONF_SUPPORTED	128
-#define SCTP_AUTH_SUPPORTED	129
-#define SCTP_ECN_SUPPORTED	130
-#define SCTP_EXPOSE_POTENTIALLY_FAILED_STATE	131
-#define SCTP_EXPOSE_PF_STATE	SCTP_EXPOSE_POTENTIALLY_FAILED_STATE
-
-/* PR-SCTP policies */
-#define SCTP_PR_SCTP_NONE	0x0000
-#define SCTP_PR_SCTP_TTL	0x0010
-#define SCTP_PR_SCTP_RTX	0x0020
-#define SCTP_PR_SCTP_PRIO	0x0030
-#define SCTP_PR_SCTP_MAX	SCTP_PR_SCTP_PRIO
-#define SCTP_PR_SCTP_MASK	0x0030
-
-#define __SCTP_PR_INDEX(x)	((x >> 4) - 1)
-#define SCTP_PR_INDEX(x)	__SCTP_PR_INDEX(SCTP_PR_SCTP_ ## x)
-
-#define SCTP_PR_POLICY(x)	((x) & SCTP_PR_SCTP_MASK)
-#define SCTP_PR_SET_POLICY(flags, x)	\
-	do {				\
-		flags &= ~SCTP_PR_SCTP_MASK;	\
-		flags |= x;		\
-	} while (0)
-
-#define SCTP_PR_TTL_ENABLED(x)	(SCTP_PR_POLICY(x) == SCTP_PR_SCTP_TTL)
-#define SCTP_PR_RTX_ENABLED(x)	(SCTP_PR_POLICY(x) == SCTP_PR_SCTP_RTX)
-#define SCTP_PR_PRIO_ENABLED(x)	(SCTP_PR_POLICY(x) == SCTP_PR_SCTP_PRIO)
-
-/* For enable stream reset */
-#define SCTP_ENABLE_RESET_STREAM_REQ	0x01
-#define SCTP_ENABLE_RESET_ASSOC_REQ	0x02
-#define SCTP_ENABLE_CHANGE_ASSOC_REQ	0x04
-#define SCTP_ENABLE_STRRESET_MASK	0x07
-
-#define SCTP_STREAM_RESET_INCOMING	0x01
-#define SCTP_STREAM_RESET_OUTGOING	0x02
-
-/* These are bit fields for msghdr->msg_flags.  See section 5.1.  */
-/* On user space Linux, these live in <bits/socket.h> as an enum.  */
-enum sctp_msg_flags {
-	MSG_NOTIFICATION = 0x8000,
-#define MSG_NOTIFICATION MSG_NOTIFICATION
-};
-
-/* 5.3.1 SCTP Initiation Structure (SCTP_INIT)
- *
- *   This cmsghdr structure provides information for initializing new
- *   SCTP associations with sendmsg().  The SCTP_INITMSG socket option
- *   uses this same data structure.  This structure is not used for
- *   recvmsg().
- *
- *   cmsg_level    cmsg_type      cmsg_data[]
- *   ------------  ------------   ----------------------
- *   IPPROTO_SCTP  SCTP_INIT      struct sctp_initmsg
- */
-struct sctp_initmsg {
-	__u16 sinit_num_ostreams;
-	__u16 sinit_max_instreams;
-	__u16 sinit_max_attempts;
-	__u16 sinit_max_init_timeo;
-};
-
-/* 5.3.2 SCTP Header Information Structure (SCTP_SNDRCV)
- *
- *   This cmsghdr structure specifies SCTP options for sendmsg() and
- *   describes SCTP header information about a received message through
- *   recvmsg().
- *
- *   cmsg_level    cmsg_type      cmsg_data[]
- *   ------------  ------------   ----------------------
- *   IPPROTO_SCTP  SCTP_SNDRCV    struct sctp_sndrcvinfo
- */
-struct sctp_sndrcvinfo {
-	__u16 sinfo_stream;
-	__u16 sinfo_ssn;
-	__u16 sinfo_flags;
-	__u32 sinfo_ppid;
-	__u32 sinfo_context;
-	__u32 sinfo_timetolive;
-	__u32 sinfo_tsn;
-	__u32 sinfo_cumtsn;
-	sctp_assoc_t sinfo_assoc_id;
-};
-
-/* 5.3.4 SCTP Send Information Structure (SCTP_SNDINFO)
- *
- *   This cmsghdr structure specifies SCTP options for sendmsg().
- *
- *   cmsg_level    cmsg_type      cmsg_data[]
- *   ------------  ------------   -------------------
- *   IPPROTO_SCTP  SCTP_SNDINFO   struct sctp_sndinfo
- */
-struct sctp_sndinfo {
-	__u16 snd_sid;
-	__u16 snd_flags;
-	__u32 snd_ppid;
-	__u32 snd_context;
-	sctp_assoc_t snd_assoc_id;
-};
-
-/* 5.3.5 SCTP Receive Information Structure (SCTP_RCVINFO)
- *
- *   This cmsghdr structure describes SCTP receive information
- *   about a received message through recvmsg().
- *
- *   cmsg_level    cmsg_type      cmsg_data[]
- *   ------------  ------------   -------------------
- *   IPPROTO_SCTP  SCTP_RCVINFO   struct sctp_rcvinfo
- */
-struct sctp_rcvinfo {
-	__u16 rcv_sid;
-	__u16 rcv_ssn;
-	__u16 rcv_flags;
-	__u32 rcv_ppid;
-	__u32 rcv_tsn;
-	__u32 rcv_cumtsn;
-	__u32 rcv_context;
-	sctp_assoc_t rcv_assoc_id;
-};
-
-/* 5.3.6 SCTP Next Receive Information Structure (SCTP_NXTINFO)
- *
- *   This cmsghdr structure describes SCTP receive information
- *   of the next message that will be delivered through recvmsg()
- *   if this information is already available when delivering
- *   the current message.
- *
- *   cmsg_level    cmsg_type      cmsg_data[]
- *   ------------  ------------   -------------------
- *   IPPROTO_SCTP  SCTP_NXTINFO   struct sctp_nxtinfo
- */
-struct sctp_nxtinfo {
-	__u16 nxt_sid;
-	__u16 nxt_flags;
-	__u32 nxt_ppid;
-	__u32 nxt_length;
-	sctp_assoc_t nxt_assoc_id;
-};
-
-/* 5.3.7 SCTP PR-SCTP Information Structure (SCTP_PRINFO)
- *
- *   This cmsghdr structure specifies SCTP options for sendmsg().
- *
- *   cmsg_level    cmsg_type      cmsg_data[]
- *   ------------  ------------   -------------------
- *   IPPROTO_SCTP  SCTP_PRINFO    struct sctp_prinfo
- */
-struct sctp_prinfo {
-	__u16 pr_policy;
-	__u32 pr_value;
-};
-
-/* 5.3.8 SCTP AUTH Information Structure (SCTP_AUTHINFO)
- *
- *   This cmsghdr structure specifies SCTP options for sendmsg().
- *
- *   cmsg_level    cmsg_type      cmsg_data[]
- *   ------------  ------------   -------------------
- *   IPPROTO_SCTP  SCTP_AUTHINFO  struct sctp_authinfo
- */
-struct sctp_authinfo {
-	__u16 auth_keynumber;
-};
-
-/*
- *  sinfo_flags: 16 bits (unsigned integer)
- *
- *   This field may contain any of the following flags and is composed of
- *   a bitwise OR of these values.
- */
-enum sctp_sinfo_flags {
-	SCTP_UNORDERED		= (1 << 0), /* Send/receive message unordered. */
-	SCTP_ADDR_OVER		= (1 << 1), /* Override the primary destination. */
-	SCTP_ABORT		= (1 << 2), /* Send an ABORT message to the peer. */
-	SCTP_SACK_IMMEDIATELY	= (1 << 3), /* SACK should be sent without delay. */
-	/* 2 bits here have been used by SCTP_PR_SCTP_MASK */
-	SCTP_SENDALL		= (1 << 6),
-	SCTP_PR_SCTP_ALL	= (1 << 7),
-	SCTP_NOTIFICATION	= MSG_NOTIFICATION, /* Next message is not user msg but notification. */
-	SCTP_EOF		= MSG_FIN,  /* Initiate graceful shutdown process. */
-};
-
-typedef union {
-	__u8   			raw;
-	struct sctp_initmsg	init;
-	struct sctp_sndrcvinfo	sndrcv;
-} sctp_cmsg_data_t;
-
-/* These are cmsg_types.  */
-typedef enum sctp_cmsg_type {
-	SCTP_INIT,		/* 5.2.1 SCTP Initiation Structure */
-#define SCTP_INIT	SCTP_INIT
-	SCTP_SNDRCV,		/* 5.2.2 SCTP Header Information Structure */
-#define SCTP_SNDRCV	SCTP_SNDRCV
-	SCTP_SNDINFO,		/* 5.3.4 SCTP Send Information Structure */
-#define SCTP_SNDINFO	SCTP_SNDINFO
-	SCTP_RCVINFO,		/* 5.3.5 SCTP Receive Information Structure */
-#define SCTP_RCVINFO	SCTP_RCVINFO
-	SCTP_NXTINFO,		/* 5.3.6 SCTP Next Receive Information Structure */
-#define SCTP_NXTINFO	SCTP_NXTINFO
-	SCTP_PRINFO,		/* 5.3.7 SCTP PR-SCTP Information Structure */
-#define SCTP_PRINFO	SCTP_PRINFO
-	SCTP_AUTHINFO,		/* 5.3.8 SCTP AUTH Information Structure */
-#define SCTP_AUTHINFO	SCTP_AUTHINFO
-	SCTP_DSTADDRV4,		/* 5.3.9 SCTP Destination IPv4 Address Structure */
-#define SCTP_DSTADDRV4	SCTP_DSTADDRV4
-	SCTP_DSTADDRV6,		/* 5.3.10 SCTP Destination IPv6 Address Structure */
-#define SCTP_DSTADDRV6	SCTP_DSTADDRV6
-} sctp_cmsg_t;
-
-/*
- * 5.3.1.1 SCTP_ASSOC_CHANGE
- *
- *   Communication notifications inform the ULP that an SCTP association
- *   has either begun or ended. The identifier for a new association is
- *   provided by this notificaion. The notification information has the
- *   following format:
- *
- */
-struct sctp_assoc_change {
-	__u16 sac_type;
-	__u16 sac_flags;
-	__u32 sac_length;
-	__u16 sac_state;
-	__u16 sac_error;
-	__u16 sac_outbound_streams;
-	__u16 sac_inbound_streams;
-	sctp_assoc_t sac_assoc_id;
-	__u8 sac_info[0];
-};
-
-/*
- *   sac_state: 32 bits (signed integer)
- *
- *   This field holds one of a number of values that communicate the
- *   event that happened to the association.  They include:
- *
- *   Note:  The following state names deviate from the API draft as
- *   the names clash too easily with other kernel symbols.
- */
-enum sctp_sac_state {
-	SCTP_COMM_UP,
-	SCTP_COMM_LOST,
-	SCTP_RESTART,
-	SCTP_SHUTDOWN_COMP,
-	SCTP_CANT_STR_ASSOC,
-};
-
-/*
- * 5.3.1.2 SCTP_PEER_ADDR_CHANGE
- *
- *   When a destination address on a multi-homed peer encounters a change
- *   an interface details event is sent.  The information has the
- *   following structure:
- */
-struct sctp_paddr_change {
-	__u16 spc_type;
-	__u16 spc_flags;
-	__u32 spc_length;
-	struct sockaddr_storage spc_aaddr;
-	int spc_state;
-	int spc_error;
-	sctp_assoc_t spc_assoc_id;
-} __attribute__((packed, aligned(4)));
-
-/*
- *    spc_state:  32 bits (signed integer)
- *
- *   This field holds one of a number of values that communicate the
- *   event that happened to the address.  They include:
- */
-enum sctp_spc_state {
-	SCTP_ADDR_AVAILABLE,
-	SCTP_ADDR_UNREACHABLE,
-	SCTP_ADDR_REMOVED,
-	SCTP_ADDR_ADDED,
-	SCTP_ADDR_MADE_PRIM,
-	SCTP_ADDR_CONFIRMED,
-	SCTP_ADDR_POTENTIALLY_FAILED,
-#define SCTP_ADDR_PF	SCTP_ADDR_POTENTIALLY_FAILED
-};
-
-
-/*
- * 5.3.1.3 SCTP_REMOTE_ERROR
- *
- *   A remote peer may send an Operational Error message to its peer.
- *   This message indicates a variety of error conditions on an
- *   association. The entire error TLV as it appears on the wire is
- *   included in a SCTP_REMOTE_ERROR event.  Please refer to the SCTP
- *   specification [SCTP] and any extensions for a list of possible
- *   error formats. SCTP error TLVs have the format:
- */
-struct sctp_remote_error {
-	__u16 sre_type;
-	__u16 sre_flags;
-	__u32 sre_length;
-	__be16 sre_error;
-	sctp_assoc_t sre_assoc_id;
-	__u8 sre_data[0];
-};
-
-
-/*
- * 5.3.1.4 SCTP_SEND_FAILED
- *
- *   If SCTP cannot deliver a message it may return the message as a
- *   notification.
- */
-struct sctp_send_failed {
-	__u16 ssf_type;
-	__u16 ssf_flags;
-	__u32 ssf_length;
-	__u32 ssf_error;
-	struct sctp_sndrcvinfo ssf_info;
-	sctp_assoc_t ssf_assoc_id;
-	__u8 ssf_data[0];
-};
-
-struct sctp_send_failed_event {
-	__u16 ssf_type;
-	__u16 ssf_flags;
-	__u32 ssf_length;
-	__u32 ssf_error;
-	struct sctp_sndinfo ssfe_info;
-	sctp_assoc_t ssf_assoc_id;
-	__u8 ssf_data[0];
-};
-
-/*
- *   ssf_flags: 16 bits (unsigned integer)
- *
- *   The flag value will take one of the following values
- *
- *   SCTP_DATA_UNSENT  - Indicates that the data was never put on
- *                       the wire.
- *
- *   SCTP_DATA_SENT    - Indicates that the data was put on the wire.
- *                       Note that this does not necessarily mean that the
- *                       data was (or was not) successfully delivered.
- */
-enum sctp_ssf_flags {
-	SCTP_DATA_UNSENT,
-	SCTP_DATA_SENT,
-};
-
-/*
- * 5.3.1.5 SCTP_SHUTDOWN_EVENT
- *
- *   When a peer sends a SHUTDOWN, SCTP delivers this notification to
- *   inform the application that it should cease sending data.
- */
-struct sctp_shutdown_event {
-	__u16 sse_type;
-	__u16 sse_flags;
-	__u32 sse_length;
-	sctp_assoc_t sse_assoc_id;
-};
-
-/*
- * 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.
- */
-/* 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,
-};
-
-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;
-	struct sockaddr		*addrs;
-};
-
-struct sctp_getaddrs {
-	sctp_assoc_t		assoc_id; /*input*/
-	__u32			addr_num; /*output*/
-	__u8			addrs[0]; /*output, variable size*/
-};
-
-/* A socket user request obtained via SCTP_GET_ASSOC_STATS that retrieves
- * association stats. All stats are counts except sas_maxrto and
- * sas_obs_rto_ipaddr. maxrto is the max observed rto + transport since
- * the last call. Will return 0 when RTO was not update since last call
- */
-struct sctp_assoc_stats {
-	sctp_assoc_t	sas_assoc_id;    /* Input */
-					 /* Transport of observed max RTO */
-	struct sockaddr_storage sas_obs_rto_ipaddr;
-	__u64		sas_maxrto;      /* Maximum Observed RTO for period */
-	__u64		sas_isacks;	 /* SACKs received */
-	__u64		sas_osacks;	 /* SACKs sent */
-	__u64		sas_opackets;	 /* Packets sent */
-	__u64		sas_ipackets;	 /* Packets received */
-	__u64		sas_rtxchunks;   /* Retransmitted Chunks */
-	__u64		sas_outofseqtsns;/* TSN received > next expected */
-	__u64		sas_idupchunks;  /* Dups received (ordered+unordered) */
-	__u64		sas_gapcnt;      /* Gap Acknowledgements Received */
-	__u64		sas_ouodchunks;  /* Unordered data chunks sent */
-	__u64		sas_iuodchunks;  /* Unordered data chunks received */
-	__u64		sas_oodchunks;	 /* Ordered data chunks sent */
-	__u64		sas_iodchunks;	 /* Ordered data chunks received */
-	__u64		sas_octrlchunks; /* Control chunks sent */
-	__u64		sas_ictrlchunks; /* Control chunks received */
-};
-
-/*
- * 8.1 sctp_bindx()
- *
- * The flags parameter is formed from the bitwise OR of zero or more of the
- * following currently defined flags:
- */
-#define SCTP_BINDX_ADD_ADDR 0x01
-#define SCTP_BINDX_REM_ADDR 0x02
-
-/* This is the structure that is passed as an argument(optval) to
- * getsockopt(SCTP_SOCKOPT_PEELOFF).
- */
-typedef struct {
-	sctp_assoc_t associd;
-	int sd;
-} sctp_peeloff_arg_t;
-
-typedef struct {
-	sctp_peeloff_arg_t p_arg;
-	unsigned flags;
-} sctp_peeloff_flags_arg_t;
-
-/*
- *  Peer Address Thresholds socket option
- */
-struct sctp_paddrthlds {
-	sctp_assoc_t spt_assoc_id;
-	struct sockaddr_storage spt_address;
-	__u16 spt_pathmaxrxt;
-	__u16 spt_pathpfthld;
-};
-
-/* Use a new structure with spt_pathcpthld for back compatibility */
-struct sctp_paddrthlds_v2 {
-	sctp_assoc_t spt_assoc_id;
-	struct sockaddr_storage spt_address;
-	__u16 spt_pathmaxrxt;
-	__u16 spt_pathpfthld;
-	__u16 spt_pathcpthld;
-};
-
-/*
- * Socket Option for Getting the Association/Stream-Specific PR-SCTP Status
- */
-struct sctp_prstatus {
-	sctp_assoc_t sprstat_assoc_id;
-	__u16 sprstat_sid;
-	__u16 sprstat_policy;
-	__u64 sprstat_abandoned_unsent;
-	__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;
-};
-
-/* 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 /* _SCTP_H */
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ 
+/* SCTP kernel implementation 
+ * (C) Copyright IBM Corp. 2001, 2004 
+ * Copyright (c) 1999-2000 Cisco, Inc. 
+ * Copyright (c) 1999-2001 Motorola, Inc. 
+ * Copyright (c) 2002 Intel Corp. 
+ * 
+ * This file is part of the SCTP kernel implementation 
+ * 
+ * This header represents the structures and constants needed to support 
+ * the SCTP Extension to the Sockets API. 
+ * 
+ * This SCTP implementation is free software; 
+ * you can redistribute it and/or modify it under the terms of 
+ * the GNU General Public License as published by 
+ * the Free Software Foundation; either version 2, or (at your option) 
+ * any later version. 
+ * 
+ * This SCTP implementation is distributed in the hope that it 
+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied 
+ *                 ************************ 
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
+ * See the GNU General Public License for more details. 
+ * 
+ * You should have received a copy of the GNU General Public License 
+ * along with GNU CC; see the file COPYING.  If not, see 
+ * <http://www.gnu.org/licenses/>. 
+ * 
+ * Please send any bug reports or fixes you make to the 
+ * email address(es): 
+ *    lksctp developers <linux-sctp@vger.kernel.org> 
+ * 
+ * Or submit a bug report through the following website: 
+ *    http://www.sf.net/projects/lksctp 
+ * 
+ * Written or modified by: 
+ *    La Monte H.P. Yarroll    <piggy@acm.org> 
+ *    R. Stewart               <randall@sctp.chicago.il.us> 
+ *    K. Morneau               <kmorneau@cisco.com> 
+ *    Q. Xie                   <qxie1@email.mot.com> 
+ *    Karl Knutson             <karl@athena.chicago.il.us> 
+ *    Jon Grimm                <jgrimm@us.ibm.com> 
+ *    Daisy Chang              <daisyc@us.ibm.com> 
+ *    Ryan Layer               <rmlayer@us.ibm.com> 
+ *    Ardelle Fan              <ardelle.fan@intel.com> 
+ *    Sridhar Samudrala        <sri@us.ibm.com> 
+ *    Inaky Perez-Gonzalez     <inaky.gonzalez@intel.com> 
+ *    Vlad Yasevich            <vladislav.yasevich@hp.com> 
+ * 
+ * Any bugs reported given to us we will try to fix... any fixes shared will 
+ * be incorporated into the next SCTP release. 
+ */ 
+ 
+#ifndef _SCTP_H 
+#define _SCTP_H 
+ 
+#include <linux/types.h> 
+#include <linux/socket.h> 
+ 
+typedef __s32 sctp_assoc_t; 
+ 
+#define SCTP_FUTURE_ASSOC	0 
+#define SCTP_CURRENT_ASSOC	1 
+#define SCTP_ALL_ASSOC		2 
+ 
+/* The following symbols come from the Sockets API Extensions for 
+ * SCTP <draft-ietf-tsvwg-sctpsocket-07.txt>. 
+ */ 
+#define SCTP_RTOINFO	0 
+#define SCTP_ASSOCINFO  1 
+#define SCTP_INITMSG	2 
+#define SCTP_NODELAY	3		/* Get/set nodelay option. */ 
+#define SCTP_AUTOCLOSE	4 
+#define SCTP_SET_PEER_PRIMARY_ADDR 5 
+#define SCTP_PRIMARY_ADDR	6 
+#define SCTP_ADAPTATION_LAYER	7 
+#define SCTP_DISABLE_FRAGMENTS	8 
+#define SCTP_PEER_ADDR_PARAMS	9 
+#define SCTP_DEFAULT_SEND_PARAM	10 
+#define SCTP_EVENTS	11 
+#define SCTP_I_WANT_MAPPED_V4_ADDR 12	/* Turn on/off mapped v4 addresses  */ 
+#define SCTP_MAXSEG	13		/* Get/set maximum fragment. */ 
+#define SCTP_STATUS	14 
+#define SCTP_GET_PEER_ADDR_INFO	15 
+#define SCTP_DELAYED_ACK_TIME	16 
+#define SCTP_DELAYED_ACK SCTP_DELAYED_ACK_TIME 
+#define SCTP_DELAYED_SACK SCTP_DELAYED_ACK_TIME 
+#define SCTP_CONTEXT	17 
+#define SCTP_FRAGMENT_INTERLEAVE	18 
+#define SCTP_PARTIAL_DELIVERY_POINT	19 /* Set/Get partial delivery point */ 
+#define SCTP_MAX_BURST	20		/* Set/Get max burst */ 
+#define SCTP_AUTH_CHUNK	21	/* Set only: add a chunk type to authenticate */ 
+#define SCTP_HMAC_IDENT	22 
+#define SCTP_AUTH_KEY	23 
+#define SCTP_AUTH_ACTIVE_KEY	24 
+#define SCTP_AUTH_DELETE_KEY	25 
+#define SCTP_PEER_AUTH_CHUNKS	26	/* Read only */ 
+#define SCTP_LOCAL_AUTH_CHUNKS	27	/* Read only */ 
+#define SCTP_GET_ASSOC_NUMBER	28	/* Read only */ 
+#define SCTP_GET_ASSOC_ID_LIST	29	/* Read only */ 
+#define SCTP_AUTO_ASCONF       30 
+#define SCTP_PEER_ADDR_THLDS	31 
+#define SCTP_RECVRCVINFO	32 
+#define SCTP_RECVNXTINFO	33 
+#define SCTP_DEFAULT_SNDINFO	34 
+#define SCTP_AUTH_DEACTIVATE_KEY	35 
+#define SCTP_REUSE_PORT		36 
+#define SCTP_PEER_ADDR_THLDS_V2	37 
+ 
+/* Internal Socket Options. Some of the sctp library functions are 
+ * implemented using these socket options. 
+ */ 
+#define SCTP_SOCKOPT_BINDX_ADD	100	/* BINDX requests for adding addrs */ 
+#define SCTP_SOCKOPT_BINDX_REM	101	/* BINDX requests for removing addrs. */ 
+#define SCTP_SOCKOPT_PEELOFF	102	/* peel off association. */ 
+/* Options 104-106 are deprecated and removed. Do not use this space */ 
+#define SCTP_SOCKOPT_CONNECTX_OLD	107	/* CONNECTX old requests. */ 
+#define SCTP_GET_PEER_ADDRS	108		/* Get all peer address. */ 
+#define SCTP_GET_LOCAL_ADDRS	109		/* Get all local address. */ 
+#define SCTP_SOCKOPT_CONNECTX	110		/* CONNECTX requests. */ 
+#define SCTP_SOCKOPT_CONNECTX3	111	/* CONNECTX requests (updated) */ 
+#define SCTP_GET_ASSOC_STATS	112	/* Read only */ 
+#define SCTP_PR_SUPPORTED	113 
+#define SCTP_DEFAULT_PRINFO	114 
+#define SCTP_PR_ASSOC_STATUS	115 
+#define SCTP_PR_STREAM_STATUS	116 
+#define SCTP_RECONFIG_SUPPORTED	117 
+#define SCTP_ENABLE_STREAM_RESET	118 
+#define SCTP_RESET_STREAMS	119 
+#define SCTP_RESET_ASSOC	120 
+#define SCTP_ADD_STREAMS	121 
+#define SCTP_SOCKOPT_PEELOFF_FLAGS 122 
+#define SCTP_STREAM_SCHEDULER	123 
+#define SCTP_STREAM_SCHEDULER_VALUE	124 
+#define SCTP_INTERLEAVING_SUPPORTED	125 
+#define SCTP_SENDMSG_CONNECT	126 
+#define SCTP_EVENT	127 
+#define SCTP_ASCONF_SUPPORTED	128 
+#define SCTP_AUTH_SUPPORTED	129 
+#define SCTP_ECN_SUPPORTED	130 
+#define SCTP_EXPOSE_POTENTIALLY_FAILED_STATE	131 
+#define SCTP_EXPOSE_PF_STATE	SCTP_EXPOSE_POTENTIALLY_FAILED_STATE 
+ 
+/* PR-SCTP policies */ 
+#define SCTP_PR_SCTP_NONE	0x0000 
+#define SCTP_PR_SCTP_TTL	0x0010 
+#define SCTP_PR_SCTP_RTX	0x0020 
+#define SCTP_PR_SCTP_PRIO	0x0030 
+#define SCTP_PR_SCTP_MAX	SCTP_PR_SCTP_PRIO 
+#define SCTP_PR_SCTP_MASK	0x0030 
+ 
+#define __SCTP_PR_INDEX(x)	((x >> 4) - 1) 
+#define SCTP_PR_INDEX(x)	__SCTP_PR_INDEX(SCTP_PR_SCTP_ ## x) 
+ 
+#define SCTP_PR_POLICY(x)	((x) & SCTP_PR_SCTP_MASK) 
+#define SCTP_PR_SET_POLICY(flags, x)	\ 
+	do {				\ 
+		flags &= ~SCTP_PR_SCTP_MASK;	\ 
+		flags |= x;		\ 
+	} while (0) 
+ 
+#define SCTP_PR_TTL_ENABLED(x)	(SCTP_PR_POLICY(x) == SCTP_PR_SCTP_TTL) 
+#define SCTP_PR_RTX_ENABLED(x)	(SCTP_PR_POLICY(x) == SCTP_PR_SCTP_RTX) 
+#define SCTP_PR_PRIO_ENABLED(x)	(SCTP_PR_POLICY(x) == SCTP_PR_SCTP_PRIO) 
+ 
+/* For enable stream reset */ 
+#define SCTP_ENABLE_RESET_STREAM_REQ	0x01 
+#define SCTP_ENABLE_RESET_ASSOC_REQ	0x02 
+#define SCTP_ENABLE_CHANGE_ASSOC_REQ	0x04 
+#define SCTP_ENABLE_STRRESET_MASK	0x07 
+ 
+#define SCTP_STREAM_RESET_INCOMING	0x01 
+#define SCTP_STREAM_RESET_OUTGOING	0x02 
+ 
+/* These are bit fields for msghdr->msg_flags.  See section 5.1.  */ 
+/* On user space Linux, these live in <bits/socket.h> as an enum.  */ 
+enum sctp_msg_flags { 
+	MSG_NOTIFICATION = 0x8000, 
+#define MSG_NOTIFICATION MSG_NOTIFICATION 
+}; 
+ 
+/* 5.3.1 SCTP Initiation Structure (SCTP_INIT) 
+ * 
+ *   This cmsghdr structure provides information for initializing new 
+ *   SCTP associations with sendmsg().  The SCTP_INITMSG socket option 
+ *   uses this same data structure.  This structure is not used for 
+ *   recvmsg(). 
+ * 
+ *   cmsg_level    cmsg_type      cmsg_data[] 
+ *   ------------  ------------   ---------------------- 
+ *   IPPROTO_SCTP  SCTP_INIT      struct sctp_initmsg 
+ */ 
+struct sctp_initmsg { 
+	__u16 sinit_num_ostreams; 
+	__u16 sinit_max_instreams; 
+	__u16 sinit_max_attempts; 
+	__u16 sinit_max_init_timeo; 
+}; 
+ 
+/* 5.3.2 SCTP Header Information Structure (SCTP_SNDRCV) 
+ * 
+ *   This cmsghdr structure specifies SCTP options for sendmsg() and 
+ *   describes SCTP header information about a received message through 
+ *   recvmsg(). 
+ * 
+ *   cmsg_level    cmsg_type      cmsg_data[] 
+ *   ------------  ------------   ---------------------- 
+ *   IPPROTO_SCTP  SCTP_SNDRCV    struct sctp_sndrcvinfo 
+ */ 
+struct sctp_sndrcvinfo { 
+	__u16 sinfo_stream; 
+	__u16 sinfo_ssn; 
+	__u16 sinfo_flags; 
+	__u32 sinfo_ppid; 
+	__u32 sinfo_context; 
+	__u32 sinfo_timetolive; 
+	__u32 sinfo_tsn; 
+	__u32 sinfo_cumtsn; 
+	sctp_assoc_t sinfo_assoc_id; 
+}; 
+ 
+/* 5.3.4 SCTP Send Information Structure (SCTP_SNDINFO) 
+ * 
+ *   This cmsghdr structure specifies SCTP options for sendmsg(). 
+ * 
+ *   cmsg_level    cmsg_type      cmsg_data[] 
+ *   ------------  ------------   ------------------- 
+ *   IPPROTO_SCTP  SCTP_SNDINFO   struct sctp_sndinfo 
+ */ 
+struct sctp_sndinfo { 
+	__u16 snd_sid; 
+	__u16 snd_flags; 
+	__u32 snd_ppid; 
+	__u32 snd_context; 
+	sctp_assoc_t snd_assoc_id; 
+}; 
+ 
+/* 5.3.5 SCTP Receive Information Structure (SCTP_RCVINFO) 
+ * 
+ *   This cmsghdr structure describes SCTP receive information 
+ *   about a received message through recvmsg(). 
+ * 
+ *   cmsg_level    cmsg_type      cmsg_data[] 
+ *   ------------  ------------   ------------------- 
+ *   IPPROTO_SCTP  SCTP_RCVINFO   struct sctp_rcvinfo 
+ */ 
+struct sctp_rcvinfo { 
+	__u16 rcv_sid; 
+	__u16 rcv_ssn; 
+	__u16 rcv_flags; 
+	__u32 rcv_ppid; 
+	__u32 rcv_tsn; 
+	__u32 rcv_cumtsn; 
+	__u32 rcv_context; 
+	sctp_assoc_t rcv_assoc_id; 
+}; 
+ 
+/* 5.3.6 SCTP Next Receive Information Structure (SCTP_NXTINFO) 
+ * 
+ *   This cmsghdr structure describes SCTP receive information 
+ *   of the next message that will be delivered through recvmsg() 
+ *   if this information is already available when delivering 
+ *   the current message. 
+ * 
+ *   cmsg_level    cmsg_type      cmsg_data[] 
+ *   ------------  ------------   ------------------- 
+ *   IPPROTO_SCTP  SCTP_NXTINFO   struct sctp_nxtinfo 
+ */ 
+struct sctp_nxtinfo { 
+	__u16 nxt_sid; 
+	__u16 nxt_flags; 
+	__u32 nxt_ppid; 
+	__u32 nxt_length; 
+	sctp_assoc_t nxt_assoc_id; 
+}; 
+ 
+/* 5.3.7 SCTP PR-SCTP Information Structure (SCTP_PRINFO) 
+ * 
+ *   This cmsghdr structure specifies SCTP options for sendmsg(). 
+ * 
+ *   cmsg_level    cmsg_type      cmsg_data[] 
+ *   ------------  ------------   ------------------- 
+ *   IPPROTO_SCTP  SCTP_PRINFO    struct sctp_prinfo 
+ */ 
+struct sctp_prinfo { 
+	__u16 pr_policy; 
+	__u32 pr_value; 
+}; 
+ 
+/* 5.3.8 SCTP AUTH Information Structure (SCTP_AUTHINFO) 
+ * 
+ *   This cmsghdr structure specifies SCTP options for sendmsg(). 
+ * 
+ *   cmsg_level    cmsg_type      cmsg_data[] 
+ *   ------------  ------------   ------------------- 
+ *   IPPROTO_SCTP  SCTP_AUTHINFO  struct sctp_authinfo 
+ */ 
+struct sctp_authinfo { 
+	__u16 auth_keynumber; 
+}; 
+ 
+/* 
+ *  sinfo_flags: 16 bits (unsigned integer) 
+ * 
+ *   This field may contain any of the following flags and is composed of 
+ *   a bitwise OR of these values. 
+ */ 
+enum sctp_sinfo_flags { 
+	SCTP_UNORDERED		= (1 << 0), /* Send/receive message unordered. */ 
+	SCTP_ADDR_OVER		= (1 << 1), /* Override the primary destination. */ 
+	SCTP_ABORT		= (1 << 2), /* Send an ABORT message to the peer. */ 
+	SCTP_SACK_IMMEDIATELY	= (1 << 3), /* SACK should be sent without delay. */ 
+	/* 2 bits here have been used by SCTP_PR_SCTP_MASK */ 
+	SCTP_SENDALL		= (1 << 6), 
+	SCTP_PR_SCTP_ALL	= (1 << 7), 
+	SCTP_NOTIFICATION	= MSG_NOTIFICATION, /* Next message is not user msg but notification. */ 
+	SCTP_EOF		= MSG_FIN,  /* Initiate graceful shutdown process. */ 
+}; 
+ 
+typedef union { 
+	__u8   			raw; 
+	struct sctp_initmsg	init; 
+	struct sctp_sndrcvinfo	sndrcv; 
+} sctp_cmsg_data_t; 
+ 
+/* These are cmsg_types.  */ 
+typedef enum sctp_cmsg_type { 
+	SCTP_INIT,		/* 5.2.1 SCTP Initiation Structure */ 
+#define SCTP_INIT	SCTP_INIT 
+	SCTP_SNDRCV,		/* 5.2.2 SCTP Header Information Structure */ 
+#define SCTP_SNDRCV	SCTP_SNDRCV 
+	SCTP_SNDINFO,		/* 5.3.4 SCTP Send Information Structure */ 
+#define SCTP_SNDINFO	SCTP_SNDINFO 
+	SCTP_RCVINFO,		/* 5.3.5 SCTP Receive Information Structure */ 
+#define SCTP_RCVINFO	SCTP_RCVINFO 
+	SCTP_NXTINFO,		/* 5.3.6 SCTP Next Receive Information Structure */ 
+#define SCTP_NXTINFO	SCTP_NXTINFO 
+	SCTP_PRINFO,		/* 5.3.7 SCTP PR-SCTP Information Structure */ 
+#define SCTP_PRINFO	SCTP_PRINFO 
+	SCTP_AUTHINFO,		/* 5.3.8 SCTP AUTH Information Structure */ 
+#define SCTP_AUTHINFO	SCTP_AUTHINFO 
+	SCTP_DSTADDRV4,		/* 5.3.9 SCTP Destination IPv4 Address Structure */ 
+#define SCTP_DSTADDRV4	SCTP_DSTADDRV4 
+	SCTP_DSTADDRV6,		/* 5.3.10 SCTP Destination IPv6 Address Structure */ 
+#define SCTP_DSTADDRV6	SCTP_DSTADDRV6 
+} sctp_cmsg_t; 
+ 
+/* 
+ * 5.3.1.1 SCTP_ASSOC_CHANGE 
+ * 
+ *   Communication notifications inform the ULP that an SCTP association 
+ *   has either begun or ended. The identifier for a new association is 
+ *   provided by this notificaion. The notification information has the 
+ *   following format: 
+ * 
+ */ 
+struct sctp_assoc_change { 
+	__u16 sac_type; 
+	__u16 sac_flags; 
+	__u32 sac_length; 
+	__u16 sac_state; 
+	__u16 sac_error; 
+	__u16 sac_outbound_streams; 
+	__u16 sac_inbound_streams; 
+	sctp_assoc_t sac_assoc_id; 
+	__u8 sac_info[0]; 
+}; 
+ 
+/* 
+ *   sac_state: 32 bits (signed integer) 
+ * 
+ *   This field holds one of a number of values that communicate the 
+ *   event that happened to the association.  They include: 
+ * 
+ *   Note:  The following state names deviate from the API draft as 
+ *   the names clash too easily with other kernel symbols. 
+ */ 
+enum sctp_sac_state { 
+	SCTP_COMM_UP, 
+	SCTP_COMM_LOST, 
+	SCTP_RESTART, 
+	SCTP_SHUTDOWN_COMP, 
+	SCTP_CANT_STR_ASSOC, 
+}; 
+ 
+/* 
+ * 5.3.1.2 SCTP_PEER_ADDR_CHANGE 
+ * 
+ *   When a destination address on a multi-homed peer encounters a change 
+ *   an interface details event is sent.  The information has the 
+ *   following structure: 
+ */ 
+struct sctp_paddr_change { 
+	__u16 spc_type; 
+	__u16 spc_flags; 
+	__u32 spc_length; 
+	struct sockaddr_storage spc_aaddr; 
+	int spc_state; 
+	int spc_error; 
+	sctp_assoc_t spc_assoc_id; 
+} __attribute__((packed, aligned(4))); 
+ 
+/* 
+ *    spc_state:  32 bits (signed integer) 
+ * 
+ *   This field holds one of a number of values that communicate the 
+ *   event that happened to the address.  They include: 
+ */ 
+enum sctp_spc_state { 
+	SCTP_ADDR_AVAILABLE, 
+	SCTP_ADDR_UNREACHABLE, 
+	SCTP_ADDR_REMOVED, 
+	SCTP_ADDR_ADDED, 
+	SCTP_ADDR_MADE_PRIM, 
+	SCTP_ADDR_CONFIRMED, 
+	SCTP_ADDR_POTENTIALLY_FAILED, 
+#define SCTP_ADDR_PF	SCTP_ADDR_POTENTIALLY_FAILED 
+}; 
+ 
+ 
+/* 
+ * 5.3.1.3 SCTP_REMOTE_ERROR 
+ * 
+ *   A remote peer may send an Operational Error message to its peer. 
+ *   This message indicates a variety of error conditions on an 
+ *   association. The entire error TLV as it appears on the wire is 
+ *   included in a SCTP_REMOTE_ERROR event.  Please refer to the SCTP 
+ *   specification [SCTP] and any extensions for a list of possible 
+ *   error formats. SCTP error TLVs have the format: 
+ */ 
+struct sctp_remote_error { 
+	__u16 sre_type; 
+	__u16 sre_flags; 
+	__u32 sre_length; 
+	__be16 sre_error; 
+	sctp_assoc_t sre_assoc_id; 
+	__u8 sre_data[0]; 
+}; 
+ 
+ 
+/* 
+ * 5.3.1.4 SCTP_SEND_FAILED 
+ * 
+ *   If SCTP cannot deliver a message it may return the message as a 
+ *   notification. 
+ */ 
+struct sctp_send_failed { 
+	__u16 ssf_type; 
+	__u16 ssf_flags; 
+	__u32 ssf_length; 
+	__u32 ssf_error; 
+	struct sctp_sndrcvinfo ssf_info; 
+	sctp_assoc_t ssf_assoc_id; 
+	__u8 ssf_data[0]; 
+}; 
+ 
+struct sctp_send_failed_event { 
+	__u16 ssf_type; 
+	__u16 ssf_flags; 
+	__u32 ssf_length; 
+	__u32 ssf_error; 
+	struct sctp_sndinfo ssfe_info; 
+	sctp_assoc_t ssf_assoc_id; 
+	__u8 ssf_data[0]; 
+}; 
+ 
+/* 
+ *   ssf_flags: 16 bits (unsigned integer) 
+ * 
+ *   The flag value will take one of the following values 
+ * 
+ *   SCTP_DATA_UNSENT  - Indicates that the data was never put on 
+ *                       the wire. 
+ * 
+ *   SCTP_DATA_SENT    - Indicates that the data was put on the wire. 
+ *                       Note that this does not necessarily mean that the 
+ *                       data was (or was not) successfully delivered. 
+ */ 
+enum sctp_ssf_flags { 
+	SCTP_DATA_UNSENT, 
+	SCTP_DATA_SENT, 
+}; 
+ 
+/* 
+ * 5.3.1.5 SCTP_SHUTDOWN_EVENT 
+ * 
+ *   When a peer sends a SHUTDOWN, SCTP delivers this notification to 
+ *   inform the application that it should cease sending data. 
+ */ 
+struct sctp_shutdown_event { 
+	__u16 sse_type; 
+	__u16 sse_flags; 
+	__u32 sse_length; 
+	sctp_assoc_t sse_assoc_id; 
+}; 
+ 
+/* 
+ * 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. 
+ */ 
+/* 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, 
+}; 
+ 
+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; 
+	struct sockaddr		*addrs; 
+}; 
+ 
+struct sctp_getaddrs { 
+	sctp_assoc_t		assoc_id; /*input*/ 
+	__u32			addr_num; /*output*/ 
+	__u8			addrs[0]; /*output, variable size*/ 
+}; 
+ 
+/* A socket user request obtained via SCTP_GET_ASSOC_STATS that retrieves 
+ * association stats. All stats are counts except sas_maxrto and 
+ * sas_obs_rto_ipaddr. maxrto is the max observed rto + transport since 
+ * the last call. Will return 0 when RTO was not update since last call 
+ */ 
+struct sctp_assoc_stats { 
+	sctp_assoc_t	sas_assoc_id;    /* Input */ 
+					 /* Transport of observed max RTO */ 
+	struct sockaddr_storage sas_obs_rto_ipaddr; 
+	__u64		sas_maxrto;      /* Maximum Observed RTO for period */ 
+	__u64		sas_isacks;	 /* SACKs received */ 
+	__u64		sas_osacks;	 /* SACKs sent */ 
+	__u64		sas_opackets;	 /* Packets sent */ 
+	__u64		sas_ipackets;	 /* Packets received */ 
+	__u64		sas_rtxchunks;   /* Retransmitted Chunks */ 
+	__u64		sas_outofseqtsns;/* TSN received > next expected */ 
+	__u64		sas_idupchunks;  /* Dups received (ordered+unordered) */ 
+	__u64		sas_gapcnt;      /* Gap Acknowledgements Received */ 
+	__u64		sas_ouodchunks;  /* Unordered data chunks sent */ 
+	__u64		sas_iuodchunks;  /* Unordered data chunks received */ 
+	__u64		sas_oodchunks;	 /* Ordered data chunks sent */ 
+	__u64		sas_iodchunks;	 /* Ordered data chunks received */ 
+	__u64		sas_octrlchunks; /* Control chunks sent */ 
+	__u64		sas_ictrlchunks; /* Control chunks received */ 
+}; 
+ 
+/* 
+ * 8.1 sctp_bindx() 
+ * 
+ * The flags parameter is formed from the bitwise OR of zero or more of the 
+ * following currently defined flags: 
+ */ 
+#define SCTP_BINDX_ADD_ADDR 0x01 
+#define SCTP_BINDX_REM_ADDR 0x02 
+ 
+/* This is the structure that is passed as an argument(optval) to 
+ * getsockopt(SCTP_SOCKOPT_PEELOFF). 
+ */ 
+typedef struct { 
+	sctp_assoc_t associd; 
+	int sd; 
+} sctp_peeloff_arg_t; 
+ 
+typedef struct { 
+	sctp_peeloff_arg_t p_arg; 
+	unsigned flags; 
+} sctp_peeloff_flags_arg_t; 
+ 
+/* 
+ *  Peer Address Thresholds socket option 
+ */ 
+struct sctp_paddrthlds { 
+	sctp_assoc_t spt_assoc_id; 
+	struct sockaddr_storage spt_address; 
+	__u16 spt_pathmaxrxt; 
+	__u16 spt_pathpfthld; 
+}; 
+ 
+/* Use a new structure with spt_pathcpthld for back compatibility */ 
+struct sctp_paddrthlds_v2 { 
+	sctp_assoc_t spt_assoc_id; 
+	struct sockaddr_storage spt_address; 
+	__u16 spt_pathmaxrxt; 
+	__u16 spt_pathpfthld; 
+	__u16 spt_pathcpthld; 
+}; 
+ 
+/* 
+ * Socket Option for Getting the Association/Stream-Specific PR-SCTP Status 
+ */ 
+struct sctp_prstatus { 
+	sctp_assoc_t sprstat_assoc_id; 
+	__u16 sprstat_sid; 
+	__u16 sprstat_policy; 
+	__u64 sprstat_abandoned_unsent; 
+	__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; 
+}; 
+ 
+/* 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 /* _SCTP_H */