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gstreamer/ext/sctp/usrsctp/usrsctplib/usrsctp.h
Tim-Philipp Müller f4538e24b6 sctp: import internal copy of usrsctp library 
There are problems with global shared state and no API stability
guarantees, and we can't rely on distros shipping the fixes we
need. Both firefox and Chrome bundle their own copies too.

Imported from https://github.com/sctplab/usrsctp,
commit 547d3b46c64876c0336b9eef297fda58dbe1adaf
Date: Thu Jul 23 21:49:32 2020 +0200

Fixes https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/issues/870

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1465>
2020-08-14 01:32:45 +01:00

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/*-
* Copyright (c) 2009-2010 Brad Penoff
* Copyright (c) 2009-2010 Humaira Kamal
* Copyright (c) 2011-2012 Irene Ruengeler
* Copyright (c) 2011-2012 Michael Tuexen
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef __USRSCTP_H__
#define __USRSCTP_H__
#ifdef __cplusplus
extern "C" {
#endif
#include <errno.h>
#include <sys/types.h>
#ifdef _WIN32
#ifdef _MSC_VER
#pragma warning(disable: 4200)
#endif
#include <winsock2.h>
#include <ws2tcpip.h>
#else
#include <sys/socket.h>
#include <netinet/in.h>
#endif
#ifndef MSG_NOTIFICATION
/* This definition MUST be in sync with usrsctplib/user_socketvar.h */
#define MSG_NOTIFICATION 0x2000
#endif
#ifndef IPPROTO_SCTP
/* This is the IANA assigned protocol number of SCTP. */
#define IPPROTO_SCTP 132
#endif
#ifdef _WIN32
#if defined(_MSC_VER) && _MSC_VER >= 1600
#include <stdint.h>
#elif defined(SCTP_STDINT_INCLUDE)
#include SCTP_STDINT_INCLUDE
#else
#define uint8_t unsigned __int8
#define uint16_t unsigned __int16
#define uint32_t unsigned __int32
#define uint64_t unsigned __int64
#define int16_t __int16
#define int32_t __int32
#endif
#ifndef ssize_t
#ifdef _WIN64
#define ssize_t __int64
#elif defined _WIN32
#define ssize_t int
#else
#error "Unknown platform!"
#endif
#endif
#define MSG_EOR 0x8
#ifndef EWOULDBLOCK
#define EWOULDBLOCK WSAEWOULDBLOCK
#endif
#ifndef EINPROGRESS
#define EINPROGRESS WSAEINPROGRESS
#endif
#define SHUT_RD 1
#define SHUT_WR 2
#define SHUT_RDWR 3
#endif
typedef uint32_t sctp_assoc_t;
#if defined(_WIN32) && defined(_MSC_VER)
#pragma pack (push, 1)
#define SCTP_PACKED
#else
#define SCTP_PACKED __attribute__((packed))
#endif
struct sctp_common_header {
uint16_t source_port;
uint16_t destination_port;
uint32_t verification_tag;
uint32_t crc32c;
} SCTP_PACKED;
#if defined(_WIN32) && defined(_MSC_VER)
#pragma pack(pop)
#endif
#undef SCTP_PACKED
#define AF_CONN 123
/* The definition of struct sockaddr_conn MUST be in
* tune with other sockaddr_* structures.
*/
#if defined(__APPLE__) || defined(__Bitrig__) || defined(__DragonFly__) || \
defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__)
struct sockaddr_conn {
uint8_t sconn_len;
uint8_t sconn_family;
uint16_t sconn_port;
void *sconn_addr;
};
#else
struct sockaddr_conn {
uint16_t sconn_family;
uint16_t sconn_port;
void *sconn_addr;
};
#endif
union sctp_sockstore {
struct sockaddr_in sin;
struct sockaddr_in6 sin6;
struct sockaddr_conn sconn;
struct sockaddr sa;
};
#define SCTP_FUTURE_ASSOC 0
#define SCTP_CURRENT_ASSOC 1
#define SCTP_ALL_ASSOC 2
#define SCTP_EVENT_READ 0x0001
#define SCTP_EVENT_WRITE 0x0002
#define SCTP_EVENT_ERROR 0x0004
/*** Structures and definitions to use the socket API ***/
#define SCTP_ALIGN_RESV_PAD 92
#define SCTP_ALIGN_RESV_PAD_SHORT 76
struct sctp_rcvinfo {
uint16_t rcv_sid;
uint16_t rcv_ssn;
uint16_t rcv_flags;
uint32_t rcv_ppid;
uint32_t rcv_tsn;
uint32_t rcv_cumtsn;
uint32_t rcv_context;
sctp_assoc_t rcv_assoc_id;
};
struct sctp_nxtinfo {
uint16_t nxt_sid;
uint16_t nxt_flags;
uint32_t nxt_ppid;
uint32_t nxt_length;
sctp_assoc_t nxt_assoc_id;
};
#define SCTP_NO_NEXT_MSG 0x0000
#define SCTP_NEXT_MSG_AVAIL 0x0001
#define SCTP_NEXT_MSG_ISCOMPLETE 0x0002
#define SCTP_NEXT_MSG_IS_UNORDERED 0x0004
#define SCTP_NEXT_MSG_IS_NOTIFICATION 0x0008
struct sctp_recvv_rn {
struct sctp_rcvinfo recvv_rcvinfo;
struct sctp_nxtinfo recvv_nxtinfo;
};
#define SCTP_RECVV_NOINFO 0
#define SCTP_RECVV_RCVINFO 1
#define SCTP_RECVV_NXTINFO 2
#define SCTP_RECVV_RN 3
#define SCTP_SENDV_NOINFO 0
#define SCTP_SENDV_SNDINFO 1
#define SCTP_SENDV_PRINFO 2
#define SCTP_SENDV_AUTHINFO 3
#define SCTP_SENDV_SPA 4
#define SCTP_SEND_SNDINFO_VALID 0x00000001
#define SCTP_SEND_PRINFO_VALID 0x00000002
#define SCTP_SEND_AUTHINFO_VALID 0x00000004
struct sctp_snd_all_completes {
uint16_t sall_stream;
uint16_t sall_flags;
uint32_t sall_ppid;
uint32_t sall_context;
uint32_t sall_num_sent;
uint32_t sall_num_failed;
};
struct sctp_sndinfo {
uint16_t snd_sid;
uint16_t snd_flags;
uint32_t snd_ppid;
uint32_t snd_context;
sctp_assoc_t snd_assoc_id;
};
struct sctp_prinfo {
uint16_t pr_policy;
uint32_t pr_value;
};
struct sctp_authinfo {
uint16_t auth_keynumber;
};
struct sctp_sendv_spa {
uint32_t sendv_flags;
struct sctp_sndinfo sendv_sndinfo;
struct sctp_prinfo sendv_prinfo;
struct sctp_authinfo sendv_authinfo;
};
struct sctp_udpencaps {
struct sockaddr_storage sue_address;
uint32_t sue_assoc_id;
uint16_t sue_port;
};
/******** Notifications **************/
/* notification types */
#define SCTP_ASSOC_CHANGE 0x0001
#define SCTP_PEER_ADDR_CHANGE 0x0002
#define SCTP_REMOTE_ERROR 0x0003
#define SCTP_SEND_FAILED 0x0004
#define SCTP_SHUTDOWN_EVENT 0x0005
#define SCTP_ADAPTATION_INDICATION 0x0006
#define SCTP_PARTIAL_DELIVERY_EVENT 0x0007
#define SCTP_AUTHENTICATION_EVENT 0x0008
#define SCTP_STREAM_RESET_EVENT 0x0009
#define SCTP_SENDER_DRY_EVENT 0x000a
#define SCTP_NOTIFICATIONS_STOPPED_EVENT 0x000b
#define SCTP_ASSOC_RESET_EVENT 0x000c
#define SCTP_STREAM_CHANGE_EVENT 0x000d
#define SCTP_SEND_FAILED_EVENT 0x000e
/* notification event structures */
/* association change event */
struct sctp_assoc_change {
uint16_t sac_type;
uint16_t sac_flags;
uint32_t sac_length;
uint16_t sac_state;
uint16_t sac_error;
uint16_t sac_outbound_streams;
uint16_t sac_inbound_streams;
sctp_assoc_t sac_assoc_id;
uint8_t sac_info[]; /* not available yet */
};
/* sac_state values */
#define SCTP_COMM_UP 0x0001
#define SCTP_COMM_LOST 0x0002
#define SCTP_RESTART 0x0003
#define SCTP_SHUTDOWN_COMP 0x0004
#define SCTP_CANT_STR_ASSOC 0x0005
/* sac_info values */
#define SCTP_ASSOC_SUPPORTS_PR 0x01
#define SCTP_ASSOC_SUPPORTS_AUTH 0x02
#define SCTP_ASSOC_SUPPORTS_ASCONF 0x03
#define SCTP_ASSOC_SUPPORTS_MULTIBUF 0x04
#define SCTP_ASSOC_SUPPORTS_RE_CONFIG 0x05
#define SCTP_ASSOC_SUPPORTS_INTERLEAVING 0x06
#define SCTP_ASSOC_SUPPORTS_MAX 0x06
/* Address event */
struct sctp_paddr_change {
uint16_t spc_type;
uint16_t spc_flags;
uint32_t spc_length;
struct sockaddr_storage spc_aaddr;
uint32_t spc_state;
uint32_t spc_error;
sctp_assoc_t spc_assoc_id;
uint8_t spc_padding[4];
};
/* paddr state values */
#define SCTP_ADDR_AVAILABLE 0x0001
#define SCTP_ADDR_UNREACHABLE 0x0002
#define SCTP_ADDR_REMOVED 0x0003
#define SCTP_ADDR_ADDED 0x0004
#define SCTP_ADDR_MADE_PRIM 0x0005
#define SCTP_ADDR_CONFIRMED 0x0006
/* remote error events */
struct sctp_remote_error {
uint16_t sre_type;
uint16_t sre_flags;
uint32_t sre_length;
uint16_t sre_error;
sctp_assoc_t sre_assoc_id;
uint8_t sre_data[];
};
/* shutdown event */
struct sctp_shutdown_event {
uint16_t sse_type;
uint16_t sse_flags;
uint32_t sse_length;
sctp_assoc_t sse_assoc_id;
};
/* Adaptation layer indication */
struct sctp_adaptation_event {
uint16_t sai_type;
uint16_t sai_flags;
uint32_t sai_length;
uint32_t sai_adaptation_ind;
sctp_assoc_t sai_assoc_id;
};
/* Partial delivery event */
struct sctp_pdapi_event {
uint16_t pdapi_type;
uint16_t pdapi_flags;
uint32_t pdapi_length;
uint32_t pdapi_indication;
uint32_t pdapi_stream;
uint32_t pdapi_seq;
sctp_assoc_t pdapi_assoc_id;
};
/* indication values */
#define SCTP_PARTIAL_DELIVERY_ABORTED 0x0001
/* SCTP authentication event */
struct sctp_authkey_event {
uint16_t auth_type;
uint16_t auth_flags;
uint32_t auth_length;
uint16_t auth_keynumber;
uint32_t auth_indication;
sctp_assoc_t auth_assoc_id;
};
/* indication values */
#define SCTP_AUTH_NEW_KEY 0x0001
#define SCTP_AUTH_NO_AUTH 0x0002
#define SCTP_AUTH_FREE_KEY 0x0003
/* SCTP sender dry event */
struct sctp_sender_dry_event {
uint16_t sender_dry_type;
uint16_t sender_dry_flags;
uint32_t sender_dry_length;
sctp_assoc_t sender_dry_assoc_id;
};
/* Stream reset event - subscribe to SCTP_STREAM_RESET_EVENT */
struct sctp_stream_reset_event {
uint16_t strreset_type;
uint16_t strreset_flags;
uint32_t strreset_length;
sctp_assoc_t strreset_assoc_id;
uint16_t strreset_stream_list[];
};
/* flags in stream_reset_event (strreset_flags) */
#define SCTP_STREAM_RESET_INCOMING_SSN 0x0001
#define SCTP_STREAM_RESET_OUTGOING_SSN 0x0002
#define SCTP_STREAM_RESET_DENIED 0x0004 /* SCTP_STRRESET_FAILED */
#define SCTP_STREAM_RESET_FAILED 0x0008 /* SCTP_STRRESET_FAILED */
#define SCTP_STREAM_CHANGED_DENIED 0x0010
#define SCTP_STREAM_RESET_INCOMING 0x00000001
#define SCTP_STREAM_RESET_OUTGOING 0x00000002
/* Assoc reset event - subscribe to SCTP_ASSOC_RESET_EVENT */
struct sctp_assoc_reset_event {
uint16_t assocreset_type;
uint16_t assocreset_flags;
uint32_t assocreset_length;
sctp_assoc_t assocreset_assoc_id;
uint32_t assocreset_local_tsn;
uint32_t assocreset_remote_tsn;
};
#define SCTP_ASSOC_RESET_DENIED 0x0004
#define SCTP_ASSOC_RESET_FAILED 0x0008
/* Stream change event - subscribe to SCTP_STREAM_CHANGE_EVENT */
struct sctp_stream_change_event {
uint16_t strchange_type;
uint16_t strchange_flags;
uint32_t strchange_length;
sctp_assoc_t strchange_assoc_id;
uint16_t strchange_instrms;
uint16_t strchange_outstrms;
};
#define SCTP_STREAM_CHANGE_DENIED 0x0004
#define SCTP_STREAM_CHANGE_FAILED 0x0008
/* SCTP send failed event */
struct sctp_send_failed_event {
uint16_t ssfe_type;
uint16_t ssfe_flags;
uint32_t ssfe_length;
uint32_t ssfe_error;
struct sctp_sndinfo ssfe_info;
sctp_assoc_t ssfe_assoc_id;
uint8_t ssfe_data[];
};
/* flag that indicates state of data */
#define SCTP_DATA_UNSENT 0x0001 /* inqueue never on wire */
#define SCTP_DATA_SENT 0x0002 /* on wire at failure */
/* SCTP event option */
struct sctp_event {
sctp_assoc_t se_assoc_id;
uint16_t se_type;
uint8_t se_on;
};
union sctp_notification {
struct sctp_tlv {
uint16_t sn_type;
uint16_t sn_flags;
uint32_t 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_shutdown_event sn_shutdown_event;
struct sctp_adaptation_event sn_adaptation_event;
struct sctp_pdapi_event sn_pdapi_event;
struct sctp_authkey_event sn_auth_event;
struct sctp_sender_dry_event sn_sender_dry_event;
struct sctp_send_failed_event sn_send_failed_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_event_subscribe {
uint8_t sctp_data_io_event;
uint8_t sctp_association_event;
uint8_t sctp_address_event;
uint8_t sctp_send_failure_event;
uint8_t sctp_peer_error_event;
uint8_t sctp_shutdown_event;
uint8_t sctp_partial_delivery_event;
uint8_t sctp_adaptation_layer_event;
uint8_t sctp_authentication_event;
uint8_t sctp_sender_dry_event;
uint8_t sctp_stream_reset_event;
};
/* Flags that go into the sinfo->sinfo_flags field */
#define SCTP_DATA_LAST_FRAG 0x0001 /* tail part of the message could not be sent */
#define SCTP_DATA_NOT_FRAG 0x0003 /* complete message could not be sent */
#define SCTP_NOTIFICATION 0x0010 /* next message is a notification */
#define SCTP_COMPLETE 0x0020 /* next message is complete */
#define SCTP_EOF 0x0100 /* Start shutdown procedures */
#define SCTP_ABORT 0x0200 /* Send an ABORT to peer */
#define SCTP_UNORDERED 0x0400 /* Message is un-ordered */
#define SCTP_ADDR_OVER 0x0800 /* Override the primary-address */
#define SCTP_SENDALL 0x1000 /* Send this on all associations */
#define SCTP_EOR 0x2000 /* end of message signal */
#define SCTP_SACK_IMMEDIATELY 0x4000 /* Set I-Bit */
#define INVALID_SINFO_FLAG(x) (((x) & 0xfffffff0 \
& ~(SCTP_EOF | SCTP_ABORT | SCTP_UNORDERED |\
SCTP_ADDR_OVER | SCTP_SENDALL | SCTP_EOR |\
SCTP_SACK_IMMEDIATELY)) != 0)
/* for the endpoint */
/* The lower byte is an enumeration of PR-SCTP policies */
#define SCTP_PR_SCTP_NONE 0x0000 /* Reliable transfer */
#define SCTP_PR_SCTP_TTL 0x0001 /* Time based PR-SCTP */
#define SCTP_PR_SCTP_BUF 0x0002 /* Buffer based PR-SCTP */
#define SCTP_PR_SCTP_RTX 0x0003 /* Number of retransmissions based PR-SCTP */
#define PR_SCTP_POLICY(x) ((x) & 0x0f)
#define PR_SCTP_ENABLED(x) (PR_SCTP_POLICY(x) != SCTP_PR_SCTP_NONE)
#define PR_SCTP_TTL_ENABLED(x) (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_TTL)
#define PR_SCTP_BUF_ENABLED(x) (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_BUF)
#define PR_SCTP_RTX_ENABLED(x) (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_RTX)
#define PR_SCTP_INVALID_POLICY(x) (PR_SCTP_POLICY(x) > SCTP_PR_SCTP_RTX)
/*
* user socket options: socket API defined
*/
/*
* read-write options
*/
#define SCTP_RTOINFO 0x00000001
#define SCTP_ASSOCINFO 0x00000002
#define SCTP_INITMSG 0x00000003
#define SCTP_NODELAY 0x00000004
#define SCTP_AUTOCLOSE 0x00000005
#define SCTP_PRIMARY_ADDR 0x00000007
#define SCTP_ADAPTATION_LAYER 0x00000008
#define SCTP_DISABLE_FRAGMENTS 0x00000009
#define SCTP_PEER_ADDR_PARAMS 0x0000000a
/* ancillary data/notification interest options */
/* Without this applied we will give V4 and V6 addresses on a V6 socket */
#define SCTP_I_WANT_MAPPED_V4_ADDR 0x0000000d
#define SCTP_MAXSEG 0x0000000e
#define SCTP_DELAYED_SACK 0x0000000f
#define SCTP_FRAGMENT_INTERLEAVE 0x00000010
#define SCTP_PARTIAL_DELIVERY_POINT 0x00000011
/* authentication support */
#define SCTP_HMAC_IDENT 0x00000014
#define SCTP_AUTH_ACTIVE_KEY 0x00000015
#define SCTP_AUTO_ASCONF 0x00000018
#define SCTP_MAX_BURST 0x00000019
/* assoc level context */
#define SCTP_CONTEXT 0x0000001a
/* explicit EOR signalling */
#define SCTP_EXPLICIT_EOR 0x0000001b
#define SCTP_REUSE_PORT 0x0000001c
#define SCTP_EVENT 0x0000001e
#define SCTP_RECVRCVINFO 0x0000001f
#define SCTP_RECVNXTINFO 0x00000020
#define SCTP_DEFAULT_SNDINFO 0x00000021
#define SCTP_DEFAULT_PRINFO 0x00000022
#define SCTP_REMOTE_UDP_ENCAPS_PORT 0x00000024
#define SCTP_ECN_SUPPORTED 0x00000025
#define SCTP_PR_SUPPORTED 0x00000026
#define SCTP_AUTH_SUPPORTED 0x00000027
#define SCTP_ASCONF_SUPPORTED 0x00000028
#define SCTP_RECONFIG_SUPPORTED 0x00000029
#define SCTP_NRSACK_SUPPORTED 0x00000030
#define SCTP_PKTDROP_SUPPORTED 0x00000031
#define SCTP_MAX_CWND 0x00000032
#define SCTP_ENABLE_STREAM_RESET 0x00000900 /* struct sctp_assoc_value */
/* Pluggable Stream Scheduling Socket option */
#define SCTP_PLUGGABLE_SS 0x00001203
#define SCTP_SS_VALUE 0x00001204
/*
* read-only options
*/
#define SCTP_STATUS 0x00000100
#define SCTP_GET_PEER_ADDR_INFO 0x00000101
/* authentication support */
#define SCTP_PEER_AUTH_CHUNKS 0x00000102
#define SCTP_LOCAL_AUTH_CHUNKS 0x00000103
#define SCTP_GET_ASSOC_NUMBER 0x00000104
#define SCTP_GET_ASSOC_ID_LIST 0x00000105
#define SCTP_TIMEOUTS 0x00000106
#define SCTP_PR_STREAM_STATUS 0x00000107
#define SCTP_PR_ASSOC_STATUS 0x00000108
/*
* write-only options
*/
#define SCTP_SET_PEER_PRIMARY_ADDR 0x00000006
#define SCTP_AUTH_CHUNK 0x00000012
#define SCTP_AUTH_KEY 0x00000013
#define SCTP_AUTH_DEACTIVATE_KEY 0x0000001d
#define SCTP_AUTH_DELETE_KEY 0x00000016
#define SCTP_RESET_STREAMS 0x00000901 /* struct sctp_reset_streams */
#define SCTP_RESET_ASSOC 0x00000902 /* sctp_assoc_t */
#define SCTP_ADD_STREAMS 0x00000903 /* struct sctp_add_streams */
struct sctp_initmsg {
uint16_t sinit_num_ostreams;
uint16_t sinit_max_instreams;
uint16_t sinit_max_attempts;
uint16_t sinit_max_init_timeo;
};
struct sctp_rtoinfo {
sctp_assoc_t srto_assoc_id;
uint32_t srto_initial;
uint32_t srto_max;
uint32_t srto_min;
};
struct sctp_assocparams {
sctp_assoc_t sasoc_assoc_id;
uint32_t sasoc_peer_rwnd;
uint32_t sasoc_local_rwnd;
uint32_t sasoc_cookie_life;
uint16_t sasoc_asocmaxrxt;
uint16_t sasoc_number_peer_destinations;
};
struct sctp_setprim {
struct sockaddr_storage ssp_addr;
sctp_assoc_t ssp_assoc_id;
uint8_t ssp_padding[4];
};
struct sctp_setadaptation {
uint32_t ssb_adaptation_ind;
};
struct sctp_paddrparams {
struct sockaddr_storage spp_address;
sctp_assoc_t spp_assoc_id;
uint32_t spp_hbinterval;
uint32_t spp_pathmtu;
uint32_t spp_flags;
uint32_t spp_ipv6_flowlabel;
uint16_t spp_pathmaxrxt;
uint8_t spp_dscp;
};
#define SPP_HB_ENABLE 0x00000001
#define SPP_HB_DISABLE 0x00000002
#define SPP_HB_DEMAND 0x00000004
#define SPP_PMTUD_ENABLE 0x00000008
#define SPP_PMTUD_DISABLE 0x00000010
#define SPP_HB_TIME_IS_ZERO 0x00000080
#define SPP_IPV6_FLOWLABEL 0x00000100
#define SPP_DSCP 0x00000200
/* Used for SCTP_MAXSEG, SCTP_MAX_BURST, SCTP_ENABLE_STREAM_RESET, and SCTP_CONTEXT */
struct sctp_assoc_value {
sctp_assoc_t assoc_id;
uint32_t assoc_value;
};
/* To enable stream reset */
#define SCTP_ENABLE_RESET_STREAM_REQ 0x00000001
#define SCTP_ENABLE_RESET_ASSOC_REQ 0x00000002
#define SCTP_ENABLE_CHANGE_ASSOC_REQ 0x00000004
#define SCTP_ENABLE_VALUE_MASK 0x00000007
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 strrst_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_hmacalgo {
uint32_t shmac_number_of_idents;
uint16_t shmac_idents[];
};
/* AUTH hmac_id */
#define SCTP_AUTH_HMAC_ID_RSVD 0x0000
#define SCTP_AUTH_HMAC_ID_SHA1 0x0001 /* default, mandatory */
#define SCTP_AUTH_HMAC_ID_SHA256 0x0003
#define SCTP_AUTH_HMAC_ID_SHA224 0x0004
#define SCTP_AUTH_HMAC_ID_SHA384 0x0005
#define SCTP_AUTH_HMAC_ID_SHA512 0x0006
struct sctp_sack_info {
sctp_assoc_t sack_assoc_id;
uint32_t sack_delay;
uint32_t sack_freq;
};
struct sctp_default_prinfo {
uint16_t pr_policy;
uint32_t pr_value;
sctp_assoc_t pr_assoc_id;
};
struct sctp_paddrinfo {
struct sockaddr_storage spinfo_address;
sctp_assoc_t spinfo_assoc_id;
int32_t spinfo_state;
uint32_t spinfo_cwnd;
uint32_t spinfo_srtt;
uint32_t spinfo_rto;
uint32_t spinfo_mtu;
};
struct sctp_status {
sctp_assoc_t sstat_assoc_id;
int32_t sstat_state;
uint32_t sstat_rwnd;
uint16_t sstat_unackdata;
uint16_t sstat_penddata;
uint16_t sstat_instrms;
uint16_t sstat_outstrms;
uint32_t sstat_fragmentation_point;
struct sctp_paddrinfo sstat_primary;
};
/*
* user state values
*/
#define SCTP_CLOSED 0x0000
#define SCTP_BOUND 0x1000
#define SCTP_LISTEN 0x2000
#define SCTP_COOKIE_WAIT 0x0002
#define SCTP_COOKIE_ECHOED 0x0004
#define SCTP_ESTABLISHED 0x0008
#define SCTP_SHUTDOWN_SENT 0x0010
#define SCTP_SHUTDOWN_RECEIVED 0x0020
#define SCTP_SHUTDOWN_ACK_SENT 0x0040
#define SCTP_SHUTDOWN_PENDING 0x0080
#define SCTP_ACTIVE 0x0001 /* SCTP_ADDR_REACHABLE */
#define SCTP_INACTIVE 0x0002 /* neither SCTP_ADDR_REACHABLE
nor SCTP_ADDR_UNCONFIRMED */
#define SCTP_UNCONFIRMED 0x0200 /* SCTP_ADDR_UNCONFIRMED */
struct sctp_authchunks {
sctp_assoc_t gauth_assoc_id;
/* uint32_t gauth_number_of_chunks; not available */
uint8_t gauth_chunks[];
};
struct sctp_assoc_ids {
uint32_t gaids_number_of_ids;
sctp_assoc_t gaids_assoc_id[];
};
struct sctp_setpeerprim {
struct sockaddr_storage sspp_addr;
sctp_assoc_t sspp_assoc_id;
uint8_t sspp_padding[4];
};
struct sctp_authchunk {
uint8_t sauth_chunk;
};
struct sctp_get_nonce_values {
sctp_assoc_t gn_assoc_id;
uint32_t gn_peers_tag;
uint32_t gn_local_tag;
};
/*
* Main SCTP chunk types
*/
/************0x00 series ***********/
#define SCTP_DATA 0x00
#define SCTP_INITIATION 0x01
#define SCTP_INITIATION_ACK 0x02
#define SCTP_SELECTIVE_ACK 0x03
#define SCTP_HEARTBEAT_REQUEST 0x04
#define SCTP_HEARTBEAT_ACK 0x05
#define SCTP_ABORT_ASSOCIATION 0x06
#define SCTP_SHUTDOWN 0x07
#define SCTP_SHUTDOWN_ACK 0x08
#define SCTP_OPERATION_ERROR 0x09
#define SCTP_COOKIE_ECHO 0x0a
#define SCTP_COOKIE_ACK 0x0b
#define SCTP_ECN_ECHO 0x0c
#define SCTP_ECN_CWR 0x0d
#define SCTP_SHUTDOWN_COMPLETE 0x0e
/* RFC4895 */
#define SCTP_AUTHENTICATION 0x0f
/* EY nr_sack chunk id*/
#define SCTP_NR_SELECTIVE_ACK 0x10
/************0x40 series ***********/
/************0x80 series ***********/
/* RFC5061 */
#define SCTP_ASCONF_ACK 0x80
/* draft-ietf-stewart-pktdrpsctp */
#define SCTP_PACKET_DROPPED 0x81
/* draft-ietf-stewart-strreset-xxx */
#define SCTP_STREAM_RESET 0x82
/* RFC4820 */
#define SCTP_PAD_CHUNK 0x84
/************0xc0 series ***********/
/* RFC3758 */
#define SCTP_FORWARD_CUM_TSN 0xc0
/* RFC5061 */
#define SCTP_ASCONF 0xc1
struct sctp_authkey {
sctp_assoc_t sca_assoc_id;
uint16_t sca_keynumber;
uint16_t sca_keylength;
uint8_t sca_key[];
};
struct sctp_authkeyid {
sctp_assoc_t scact_assoc_id;
uint16_t scact_keynumber;
};
struct sctp_cc_option {
int option;
struct sctp_assoc_value aid_value;
};
struct sctp_stream_value {
sctp_assoc_t assoc_id;
uint16_t stream_id;
uint16_t stream_value;
};
struct sctp_timeouts {
sctp_assoc_t stimo_assoc_id;
uint32_t stimo_init;
uint32_t stimo_data;
uint32_t stimo_sack;
uint32_t stimo_shutdown;
uint32_t stimo_heartbeat;
uint32_t stimo_cookie;
uint32_t stimo_shutdownack;
};
struct sctp_prstatus {
sctp_assoc_t sprstat_assoc_id;
uint16_t sprstat_sid;
uint16_t sprstat_policy;
uint64_t sprstat_abandoned_unsent;
uint64_t sprstat_abandoned_sent;
};
/* Standard TCP Congestion Control */
#define SCTP_CC_RFC2581 0x00000000
/* High Speed TCP Congestion Control (Floyd) */
#define SCTP_CC_HSTCP 0x00000001
/* HTCP Congestion Control */
#define SCTP_CC_HTCP 0x00000002
/* RTCC Congestion Control - RFC2581 plus */
#define SCTP_CC_RTCC 0x00000003
#define SCTP_CC_OPT_RTCC_SETMODE 0x00002000
#define SCTP_CC_OPT_USE_DCCC_EC 0x00002001
#define SCTP_CC_OPT_STEADY_STEP 0x00002002
#define SCTP_CMT_OFF 0
#define SCTP_CMT_BASE 1
#define SCTP_CMT_RPV1 2
#define SCTP_CMT_RPV2 3
#define SCTP_CMT_MPTCP 4
#define SCTP_CMT_MAX SCTP_CMT_MPTCP
/* RS - Supported stream scheduling modules for pluggable
* stream scheduling
*/
/* Default simple round-robin */
#define SCTP_SS_DEFAULT 0x00000000
/* Real round-robin */
#define SCTP_SS_ROUND_ROBIN 0x00000001
/* Real round-robin per packet */
#define SCTP_SS_ROUND_ROBIN_PACKET 0x00000002
/* Priority */
#define SCTP_SS_PRIORITY 0x00000003
/* Fair Bandwidth */
#define SCTP_SS_FAIR_BANDWITH 0x00000004
/* First-come, first-serve */
#define SCTP_SS_FIRST_COME 0x00000005
/******************** System calls *************/
struct socket;
void
usrsctp_init(uint16_t,
int (*)(void *addr, void *buffer, size_t length, uint8_t tos, uint8_t set_df),
void (*)(const char *format, ...));
void
usrsctp_init_nothreads(uint16_t,
int (*)(void *addr, void *buffer, size_t length, uint8_t tos, uint8_t set_df),
void (*)(const char *format, ...));
struct socket *
usrsctp_socket(int domain, int type, int protocol,
int (*receive_cb)(struct socket *sock, union sctp_sockstore addr, void *data,
size_t datalen, struct sctp_rcvinfo, int flags, void *ulp_info),
int (*send_cb)(struct socket *sock, uint32_t sb_free),
uint32_t sb_threshold,
void *ulp_info);
int
usrsctp_setsockopt(struct socket *so,
int level,
int option_name,
const void *option_value,
socklen_t option_len);
int
usrsctp_getsockopt(struct socket *so,
int level,
int option_name,
void *option_value,
socklen_t *option_len);
int
usrsctp_opt_info(struct socket *so,
sctp_assoc_t id,
int opt,
void *arg,
socklen_t *size);
int
usrsctp_getpaddrs(struct socket *so,
sctp_assoc_t id,
struct sockaddr **raddrs);
void
usrsctp_freepaddrs(struct sockaddr *addrs);
int
usrsctp_getladdrs(struct socket *so,
sctp_assoc_t id,
struct sockaddr **raddrs);
void
usrsctp_freeladdrs(struct sockaddr *addrs);
ssize_t
usrsctp_sendv(struct socket *so,
const void *data,
size_t len,
struct sockaddr *to,
int addrcnt,
void *info,
socklen_t infolen,
unsigned int infotype,
int flags);
ssize_t
usrsctp_recvv(struct socket *so,
void *dbuf,
size_t len,
struct sockaddr *from,
socklen_t * fromlen,
void *info,
socklen_t *infolen,
unsigned int *infotype,
int *msg_flags);
int
usrsctp_bind(struct socket *so,
struct sockaddr *name,
socklen_t namelen);
#define SCTP_BINDX_ADD_ADDR 0x00008001
#define SCTP_BINDX_REM_ADDR 0x00008002
int
usrsctp_bindx(struct socket *so,
struct sockaddr *addrs,
int addrcnt,
int flags);
int
usrsctp_listen(struct socket *so,
int backlog);
struct socket *
usrsctp_accept(struct socket *so,
struct sockaddr * aname,
socklen_t * anamelen);
struct socket *
usrsctp_peeloff(struct socket *, sctp_assoc_t);
int
usrsctp_connect(struct socket *so,
struct sockaddr *name,
socklen_t namelen);
int
usrsctp_connectx(struct socket *so,
const struct sockaddr *addrs, int addrcnt,
sctp_assoc_t *id);
void
usrsctp_close(struct socket *so);
sctp_assoc_t
usrsctp_getassocid(struct socket *, struct sockaddr *);
int
usrsctp_finish(void);
int
usrsctp_shutdown(struct socket *so, int how);
void
usrsctp_conninput(void *, const void *, size_t, uint8_t);
int
usrsctp_set_non_blocking(struct socket *, int);
int
usrsctp_get_non_blocking(struct socket *);
void
usrsctp_register_address(void *);
void
usrsctp_deregister_address(void *);
int
usrsctp_set_ulpinfo(struct socket *, void *);
int
usrsctp_get_ulpinfo(struct socket *, void **);
int
usrsctp_set_upcall(struct socket *so,
void (*upcall)(struct socket *, void *, int),
void *arg);
int
usrsctp_get_events(struct socket *so);
void
usrsctp_handle_timers(uint32_t elapsed_milliseconds);
#define SCTP_DUMP_OUTBOUND 1
#define SCTP_DUMP_INBOUND 0
char *
usrsctp_dumppacket(const void *, size_t, int);
void
usrsctp_freedumpbuffer(char *);
void
usrsctp_enable_crc32c_offload(void);
void
usrsctp_disable_crc32c_offload(void);
uint32_t
usrsctp_crc32c(void *, size_t);
#define USRSCTP_TUNABLE_DECL(__field) \
int usrsctp_tunable_set_ ## __field(uint32_t value);\
uint32_t usrsctp_sysctl_get_ ## __field(void);
USRSCTP_TUNABLE_DECL(sctp_hashtblsize)
USRSCTP_TUNABLE_DECL(sctp_pcbtblsize)
USRSCTP_TUNABLE_DECL(sctp_chunkscale)
#define USRSCTP_SYSCTL_DECL(__field) \
int usrsctp_sysctl_set_ ## __field(uint32_t value);\
uint32_t usrsctp_sysctl_get_ ## __field(void);
USRSCTP_SYSCTL_DECL(sctp_sendspace)
USRSCTP_SYSCTL_DECL(sctp_recvspace)
USRSCTP_SYSCTL_DECL(sctp_auto_asconf)
USRSCTP_SYSCTL_DECL(sctp_multiple_asconfs)
USRSCTP_SYSCTL_DECL(sctp_ecn_enable)
USRSCTP_SYSCTL_DECL(sctp_pr_enable)
USRSCTP_SYSCTL_DECL(sctp_auth_enable)
USRSCTP_SYSCTL_DECL(sctp_asconf_enable)
USRSCTP_SYSCTL_DECL(sctp_reconfig_enable)
USRSCTP_SYSCTL_DECL(sctp_nrsack_enable)
USRSCTP_SYSCTL_DECL(sctp_pktdrop_enable)
USRSCTP_SYSCTL_DECL(sctp_no_csum_on_loopback)
USRSCTP_SYSCTL_DECL(sctp_peer_chunk_oh)
USRSCTP_SYSCTL_DECL(sctp_max_burst_default)
USRSCTP_SYSCTL_DECL(sctp_max_chunks_on_queue)
USRSCTP_SYSCTL_DECL(sctp_min_split_point)
USRSCTP_SYSCTL_DECL(sctp_delayed_sack_time_default)
USRSCTP_SYSCTL_DECL(sctp_sack_freq_default)
USRSCTP_SYSCTL_DECL(sctp_system_free_resc_limit)
USRSCTP_SYSCTL_DECL(sctp_asoc_free_resc_limit)
USRSCTP_SYSCTL_DECL(sctp_heartbeat_interval_default)
USRSCTP_SYSCTL_DECL(sctp_pmtu_raise_time_default)
USRSCTP_SYSCTL_DECL(sctp_shutdown_guard_time_default)
USRSCTP_SYSCTL_DECL(sctp_secret_lifetime_default)
USRSCTP_SYSCTL_DECL(sctp_rto_max_default)
USRSCTP_SYSCTL_DECL(sctp_rto_min_default)
USRSCTP_SYSCTL_DECL(sctp_rto_initial_default)
USRSCTP_SYSCTL_DECL(sctp_init_rto_max_default)
USRSCTP_SYSCTL_DECL(sctp_valid_cookie_life_default)
USRSCTP_SYSCTL_DECL(sctp_init_rtx_max_default)
USRSCTP_SYSCTL_DECL(sctp_assoc_rtx_max_default)
USRSCTP_SYSCTL_DECL(sctp_path_rtx_max_default)
USRSCTP_SYSCTL_DECL(sctp_add_more_threshold)
USRSCTP_SYSCTL_DECL(sctp_nr_incoming_streams_default)
USRSCTP_SYSCTL_DECL(sctp_nr_outgoing_streams_default)
USRSCTP_SYSCTL_DECL(sctp_cmt_on_off)
USRSCTP_SYSCTL_DECL(sctp_cmt_use_dac)
USRSCTP_SYSCTL_DECL(sctp_use_cwnd_based_maxburst)
USRSCTP_SYSCTL_DECL(sctp_nat_friendly)
USRSCTP_SYSCTL_DECL(sctp_L2_abc_variable)
USRSCTP_SYSCTL_DECL(sctp_mbuf_threshold_count)
USRSCTP_SYSCTL_DECL(sctp_do_drain)
USRSCTP_SYSCTL_DECL(sctp_hb_maxburst)
USRSCTP_SYSCTL_DECL(sctp_abort_if_one_2_one_hits_limit)
USRSCTP_SYSCTL_DECL(sctp_min_residual)
USRSCTP_SYSCTL_DECL(sctp_max_retran_chunk)
USRSCTP_SYSCTL_DECL(sctp_logging_level)
USRSCTP_SYSCTL_DECL(sctp_default_cc_module)
USRSCTP_SYSCTL_DECL(sctp_default_frag_interleave)
USRSCTP_SYSCTL_DECL(sctp_mobility_base)
USRSCTP_SYSCTL_DECL(sctp_mobility_fasthandoff)
USRSCTP_SYSCTL_DECL(sctp_inits_include_nat_friendly)
USRSCTP_SYSCTL_DECL(sctp_udp_tunneling_port)
USRSCTP_SYSCTL_DECL(sctp_enable_sack_immediately)
USRSCTP_SYSCTL_DECL(sctp_vtag_time_wait)
USRSCTP_SYSCTL_DECL(sctp_blackhole)
USRSCTP_SYSCTL_DECL(sctp_sendall_limit)
USRSCTP_SYSCTL_DECL(sctp_diag_info_code)
USRSCTP_SYSCTL_DECL(sctp_fr_max_burst_default)
USRSCTP_SYSCTL_DECL(sctp_path_pf_threshold)
USRSCTP_SYSCTL_DECL(sctp_default_ss_module)
USRSCTP_SYSCTL_DECL(sctp_rttvar_bw)
USRSCTP_SYSCTL_DECL(sctp_rttvar_rtt)
USRSCTP_SYSCTL_DECL(sctp_rttvar_eqret)
USRSCTP_SYSCTL_DECL(sctp_steady_step)
USRSCTP_SYSCTL_DECL(sctp_use_dccc_ecn)
USRSCTP_SYSCTL_DECL(sctp_buffer_splitting)
USRSCTP_SYSCTL_DECL(sctp_initial_cwnd)
#ifdef SCTP_DEBUG
USRSCTP_SYSCTL_DECL(sctp_debug_on)
/* More specific values can be found in sctp_constants, but
* are not considered to be part of the API.
*/
#define SCTP_DEBUG_NONE 0x00000000
#define SCTP_DEBUG_ALL 0xffffffff
#endif
#undef USRSCTP_SYSCTL_DECL
struct sctp_timeval {
uint32_t tv_sec;
uint32_t tv_usec;
};
struct sctpstat {
struct sctp_timeval sctps_discontinuitytime; /* sctpStats 18 (TimeStamp) */
/* MIB according to RFC 3873 */
uint32_t sctps_currestab; /* sctpStats 1 (Gauge32) */
uint32_t sctps_activeestab; /* sctpStats 2 (Counter32) */
uint32_t sctps_restartestab;
uint32_t sctps_collisionestab;
uint32_t sctps_passiveestab; /* sctpStats 3 (Counter32) */
uint32_t sctps_aborted; /* sctpStats 4 (Counter32) */
uint32_t sctps_shutdown; /* sctpStats 5 (Counter32) */
uint32_t sctps_outoftheblue; /* sctpStats 6 (Counter32) */
uint32_t sctps_checksumerrors; /* sctpStats 7 (Counter32) */
uint32_t sctps_outcontrolchunks; /* sctpStats 8 (Counter64) */
uint32_t sctps_outorderchunks; /* sctpStats 9 (Counter64) */
uint32_t sctps_outunorderchunks; /* sctpStats 10 (Counter64) */
uint32_t sctps_incontrolchunks; /* sctpStats 11 (Counter64) */
uint32_t sctps_inorderchunks; /* sctpStats 12 (Counter64) */
uint32_t sctps_inunorderchunks; /* sctpStats 13 (Counter64) */
uint32_t sctps_fragusrmsgs; /* sctpStats 14 (Counter64) */
uint32_t sctps_reasmusrmsgs; /* sctpStats 15 (Counter64) */
uint32_t sctps_outpackets; /* sctpStats 16 (Counter64) */
uint32_t sctps_inpackets; /* sctpStats 17 (Counter64) */
/* input statistics: */
uint32_t sctps_recvpackets; /* total input packets */
uint32_t sctps_recvdatagrams; /* total input datagrams */
uint32_t sctps_recvpktwithdata; /* total packets that had data */
uint32_t sctps_recvsacks; /* total input SACK chunks */
uint32_t sctps_recvdata; /* total input DATA chunks */
uint32_t sctps_recvdupdata; /* total input duplicate DATA chunks */
uint32_t sctps_recvheartbeat; /* total input HB chunks */
uint32_t sctps_recvheartbeatack; /* total input HB-ACK chunks */
uint32_t sctps_recvecne; /* total input ECNE chunks */
uint32_t sctps_recvauth; /* total input AUTH chunks */
uint32_t sctps_recvauthmissing; /* total input chunks missing AUTH */
uint32_t sctps_recvivalhmacid; /* total number of invalid HMAC ids received */
uint32_t sctps_recvivalkeyid; /* total number of invalid secret ids received */
uint32_t sctps_recvauthfailed; /* total number of auth failed */
uint32_t sctps_recvexpress; /* total fast path receives all one chunk */
uint32_t sctps_recvexpressm; /* total fast path multi-part data */
uint32_t sctps_recv_spare; /* formerly sctps_recvnocrc */
uint32_t sctps_recvswcrc;
uint32_t sctps_recvhwcrc;
/* output statistics: */
uint32_t sctps_sendpackets; /* total output packets */
uint32_t sctps_sendsacks; /* total output SACKs */
uint32_t sctps_senddata; /* total output DATA chunks */
uint32_t sctps_sendretransdata; /* total output retransmitted DATA chunks */
uint32_t sctps_sendfastretrans; /* total output fast retransmitted DATA chunks */
uint32_t sctps_sendmultfastretrans; /* total FR's that happened more than once
* to same chunk (u-del multi-fr algo).
*/
uint32_t sctps_sendheartbeat; /* total output HB chunks */
uint32_t sctps_sendecne; /* total output ECNE chunks */
uint32_t sctps_sendauth; /* total output AUTH chunks FIXME */
uint32_t sctps_senderrors; /* ip_output error counter */
uint32_t sctps_send_spare; /* formerly sctps_sendnocrc */
uint32_t sctps_sendswcrc;
uint32_t sctps_sendhwcrc;
/* PCKDROPREP statistics: */
uint32_t sctps_pdrpfmbox; /* Packet drop from middle box */
uint32_t sctps_pdrpfehos; /* P-drop from end host */
uint32_t sctps_pdrpmbda; /* P-drops with data */
uint32_t sctps_pdrpmbct; /* P-drops, non-data, non-endhost */
uint32_t sctps_pdrpbwrpt; /* P-drop, non-endhost, bandwidth rep only */
uint32_t sctps_pdrpcrupt; /* P-drop, not enough for chunk header */
uint32_t sctps_pdrpnedat; /* P-drop, not enough data to confirm */
uint32_t sctps_pdrppdbrk; /* P-drop, where process_chunk_drop said break */
uint32_t sctps_pdrptsnnf; /* P-drop, could not find TSN */
uint32_t sctps_pdrpdnfnd; /* P-drop, attempt reverse TSN lookup */
uint32_t sctps_pdrpdiwnp; /* P-drop, e-host confirms zero-rwnd */
uint32_t sctps_pdrpdizrw; /* P-drop, midbox confirms no space */
uint32_t sctps_pdrpbadd; /* P-drop, data did not match TSN */
uint32_t sctps_pdrpmark; /* P-drop, TSN's marked for Fast Retran */
/* timeouts */
uint32_t sctps_timoiterator; /* Number of iterator timers that fired */
uint32_t sctps_timodata; /* Number of T3 data time outs */
uint32_t sctps_timowindowprobe; /* Number of window probe (T3) timers that fired */
uint32_t sctps_timoinit; /* Number of INIT timers that fired */
uint32_t sctps_timosack; /* Number of sack timers that fired */
uint32_t sctps_timoshutdown; /* Number of shutdown timers that fired */
uint32_t sctps_timoheartbeat; /* Number of heartbeat timers that fired */
uint32_t sctps_timocookie; /* Number of times a cookie timeout fired */
uint32_t sctps_timosecret; /* Number of times an endpoint changed its cookie secret*/
uint32_t sctps_timopathmtu; /* Number of PMTU timers that fired */
uint32_t sctps_timoshutdownack; /* Number of shutdown ack timers that fired */
uint32_t sctps_timoshutdownguard; /* Number of shutdown guard timers that fired */
uint32_t sctps_timostrmrst; /* Number of stream reset timers that fired */
uint32_t sctps_timoearlyfr; /* Number of early FR timers that fired */
uint32_t sctps_timoasconf; /* Number of times an asconf timer fired */
uint32_t sctps_timodelprim; /* Number of times a prim_deleted timer fired */
uint32_t sctps_timoautoclose; /* Number of times auto close timer fired */
uint32_t sctps_timoassockill; /* Number of asoc free timers expired */
uint32_t sctps_timoinpkill; /* Number of inp free timers expired */
/* former early FR counters */
uint32_t sctps_spare[11];
/* others */
uint32_t sctps_hdrops; /* packet shorter than header */
uint32_t sctps_badsum; /* checksum error */
uint32_t sctps_noport; /* no endpoint for port */
uint32_t sctps_badvtag; /* bad v-tag */
uint32_t sctps_badsid; /* bad SID */
uint32_t sctps_nomem; /* no memory */
uint32_t sctps_fastretransinrtt; /* number of multiple FR in a RTT window */
uint32_t sctps_markedretrans;
uint32_t sctps_naglesent; /* nagle allowed sending */
uint32_t sctps_naglequeued; /* nagle doesn't allow sending */
uint32_t sctps_maxburstqueued; /* max burst doesn't allow sending */
uint32_t sctps_ifnomemqueued; /* look ahead tells us no memory in
* interface ring buffer OR we had a
* send error and are queuing one send.
*/
uint32_t sctps_windowprobed; /* total number of window probes sent */
uint32_t sctps_lowlevelerr; /* total times an output error causes us
* to clamp down on next user send.
*/
uint32_t sctps_lowlevelerrusr; /* total times sctp_senderrors were caused from
* a user send from a user invoked send not
* a sack response
*/
uint32_t sctps_datadropchklmt; /* Number of in data drops due to chunk limit reached */
uint32_t sctps_datadroprwnd; /* Number of in data drops due to rwnd limit reached */
uint32_t sctps_ecnereducedcwnd; /* Number of times a ECN reduced the cwnd */
uint32_t sctps_vtagexpress; /* Used express lookup via vtag */
uint32_t sctps_vtagbogus; /* Collision in express lookup. */
uint32_t sctps_primary_randry; /* Number of times the sender ran dry of user data on primary */
uint32_t sctps_cmt_randry; /* Same for above */
uint32_t sctps_slowpath_sack; /* Sacks the slow way */
uint32_t sctps_wu_sacks_sent; /* Window Update only sacks sent */
uint32_t sctps_sends_with_flags; /* number of sends with sinfo_flags !=0 */
uint32_t sctps_sends_with_unord; /* number of unordered sends */
uint32_t sctps_sends_with_eof; /* number of sends with EOF flag set */
uint32_t sctps_sends_with_abort; /* number of sends with ABORT flag set */
uint32_t sctps_protocol_drain_calls;/* number of times protocol drain called */
uint32_t sctps_protocol_drains_done;/* number of times we did a protocol drain */
uint32_t sctps_read_peeks; /* Number of times recv was called with peek */
uint32_t sctps_cached_chk; /* Number of cached chunks used */
uint32_t sctps_cached_strmoq; /* Number of cached stream oq's used */
uint32_t sctps_left_abandon; /* Number of unread messages abandoned by close */
uint32_t sctps_send_burst_avoid; /* Unused */
uint32_t sctps_send_cwnd_avoid; /* Send cwnd full avoidance, already max burst inflight to net */
uint32_t sctps_fwdtsn_map_over; /* number of map array over-runs via fwd-tsn's */
uint32_t sctps_queue_upd_ecne; /* Number of times we queued or updated an ECN chunk on send queue */
uint32_t sctps_reserved[31]; /* Future ABI compat - remove int's from here when adding new */
};
void
usrsctp_get_stat(struct sctpstat *);
#ifdef _WIN32
#ifdef _MSC_VER
#pragma warning(default: 4200)
#endif
#endif
#ifdef __cplusplus
}
#endif
#endif
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