585 lines
22 KiB
C
585 lines
22 KiB
C
/* ipsctp.h - IPNET SCTP header file */
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/*
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* Copyright (c) 2007, 2018 Wind River Systems, Inc.
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*
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* The right to copy, distribute or otherwise make use of this software
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* may be licensed only pursuant to the terms of an applicable Wind River
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* license agreement. No license to Wind River intellectual property rights
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* is granted herein. All rights not licensed by Wind River are reserved
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* by Wind River.
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*/
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/*
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modification history
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--------------------
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01b,21nov18,lan modify the msec_expires of Iptcp_timer structure to 64bit
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(VXW6-86996)
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01a,17nov07,kch Created.
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*/
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#ifndef IPSCTP_H
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#define IPSCTP_H
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/*
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****************************************************************************
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* 1 DESCRIPTION
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****************************************************************************
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* This header file contains definitions and declarations used for IPSCTP.
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*/
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/*
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****************************************************************************
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* 2 CONFIGURATION
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****************************************************************************
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*/
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#include "ipsctp_config.h"
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/*
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****************************************************************************
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* 3 INCLUDE FILES
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****************************************************************************
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*/
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#ifdef IPNET
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#include <ipnet.h>
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#include <ipnet_h.h>
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#endif /* IPNET */
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#ifdef IPLITE
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#include <iplite_h.h>
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#endif
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#include <ipsctp_sock.h>
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#include <ipsctp_pkt.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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****************************************************************************
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* 4 DEFINES
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****************************************************************************
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*/
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#ifndef NULL
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#define NULL IP_NULL
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#endif
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/*
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* The following HAVE_XXX SCTP defines are not used by IPSCTP implementation.
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* These defines are for compatibility with Section 9 of the socket draft-15
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* only! Refer to the <ipsctp_config.h> configuration header file for more
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* information about the supported IPSCTP_USE_XXX preprocessor constants.
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*/
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#ifdef IPSCTP_USE_SOCKET
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#define HAVE_KERNEL_SCTP
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#endif /* IPSCTP_USE_SOCKET */
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#ifdef IPSCTP_USE_PRSCTP
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#define HAVE_SCTP_PRSCTP
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#endif /* IPSCTP_USE_PRSCTP */
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#ifdef IPSCTP_USE_ADDIP
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#define HAVE_SCTP_ADDIP
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#endif /* IPSCTP_USE_ADDIP */
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#ifdef IPSCTP_USE_CANSET_PRIMARY
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#define HAVE_SCTP_CANSET_PRIMARY
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#endif /* IPSCTP_USE_CANSET_PRIMARY */
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#ifdef IPSCTP_USE_MULTIBUF
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#define HAVE_SCTP_MULTIBUF 1
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#else
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#define HAVE_SCTP_MULTIBUF 0
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#endif /* IPSCTP_USE_MULTIBUF */
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#ifdef IPSCTP_USE_NOCONNECT
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#define HAVE_SCTP_NOCONNECT
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#endif /* IPSCTP_USE_NOCONNECT */
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#ifdef IPSCTP_USE_EXT_RCVINFO
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#define HAVE_SCTP_EXT_RCVINFO
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#endif /* IPSCTP_USE_EXT_RCVINFO */
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/* Stack specific types */
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#ifdef IPNET
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#define Ipsctp_socket Ipnet_socket
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#define Ipsctp_netif Ipnet_netif
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#define Ipsctp_timeout Ipnet_timeout
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#define Ipsctp_timeout_handler Ipnet_timeout_handler
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#define IPSCTP_STACK_CONST(x) IPNET_ ## x
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#elif defined(IPLITE)
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#define Ipsctp_socket Iplite_socket
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#define Ipsctp_netif Iplite_netif
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#define Ipsctp_timeout Iplite_timeout
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#define Ipsctp_timeout_handler Iplite_timeout_handler
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#define IPSCTP_STACK_CONST(x) IPLITE_ ## x
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#else
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#error "IPNET or IPLITE must be defined"
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#endif
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/* Default/minimum SCTP header is 12(SCTP Common Header) octets long */
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#define IPSCTP_SIZE_SCTP_HDR (sizeof(Ipsctp_sctp_hdr))
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/* Secret information for secret_key */
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#define IPSCTP_SECRETS_NUM (2) /* How many secrets I keep */
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#define IPSCTP_SECRET_SIZE (32) /* number of octets in a 256 bits */
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#define IPSCTP_NUMBER_OF_SECRETS (8) /* or 8 * 4 = 32 octets */
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#define IPSCTP_SIZE_INST (sizeof(Ipsctp_instance))
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#define IPSCTP_SIZE_SOCK_DATA (IPSCTP_SIZE_INST)
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/* Possible socket events */
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#define IPSCTP_NOTIFY_EVENT_PATH_MTU 1 /* The path MTU has changed */
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#define IPSCTP_NOTIFY_EVENT_KICKSTART 2 /* Try 'kickstart' this particular socket */
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/* inst_flags in Ipsctp_instance */
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#define IPSCTP_SOCKET_TCP (1u << 1)
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#define IPSCTP_SOCKET_UDP (1u << 2)
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#define IPSCTP_SOCKET_CLOSED (1u << 3)
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#define IPSCTP_SOCKET_ACCEPTING (1u << 4)
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#define IPSCTP_SOCKET_LISTENING (1u << 5)
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#define IPSCTP_SOCKET_CONNECTED (1u << 6)
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#define IPSCTP_SOCKET_BOUNDALL (1u << 7)
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#define IPSCTP_SOCKET_BOUND_V6 (1u << 8)
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#define IPSCTP_SOCKET_BOUND_V4 (1u << 9)
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#define IPSCTP_SOCKET_CONNABORTED (1u << 10)
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#define IPSCTP_SOCKET_KCLOSE_PENDING (1u << 11)
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#define IPSCTP_SOCKET_FLAG_USER_REF (1u << 12)
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#define IPSCTP_SOCKET_FLAG_LINGER (1u << 13) /* linger timer is running */
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#define IPSCTP_SOCKET_KCLOSED (1u << 14)
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#define IPSCTP_SOCKET_FLAG_AUTOCLOSE (1u << 15) /* auto-close timer is running */
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#define IPSCTP_SOCKET_FLAG_SENDALL (1u << 16) /* send-all timer is running */
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#define IPSCTP_SOCKET_FLAG_PEELOFF (1u << 17) /* peel-off socket
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* NOTE : NOW not used, used if peeloff socket
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* create with IP_SOCK_SEQPACKET */
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#define ipsctp_style(sock, style) \
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IP_BIT_ISSET(sock->sctp_inst->inst_flags, IPSCTP_SOCKET_##style)
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/*
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****************************************************************************
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* 5 TYPES
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****************************************************************************
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*/
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/* Timeout type */
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typedef enum Ipsctp_timo_enum {
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IPSCTP_TIMO_NONE = 0, /* Placeholder that means: do not add a timer */
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IPSCTP_TIMO_T1 = 1, /* init timer */
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IPSCTP_TIMO_T2 = 2, /* shutdown timer */
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IPSCTP_TIMO_T3 = 3, /* retransmission timer */
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IPSCTP_TIMO_T5 = 4, /* shutdown guard timer */
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IPSCTP_TIMO_DACK = 5, /* delay ack timer */
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#ifdef IPSCTP_FAST_RETRANSMITE
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IPSCTP_TIMO_FR = 6, /* fr timer */
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#endif
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IPSCTP_TIMO_COOKIE = 7, /* cookie timer */
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IPSCTP_TIMO_HB = 8, /* heartbeat timer */
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IPSCTP_TIMO_SECRET = 9, /* secret change timer */
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IPSCTP_TIMO_LINGER = 10, /* linger timer */
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IPSCTP_TIMO_AUTOCLOSE = 11, /* autoclose timer */
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IPSCTP_TIMO_SENDALL = 12, /* send all timer */
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IPSCTP_TIMO_MAX /* invalid value */
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} Ipsctp_timo;
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struct Ipsctp_instance;
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struct Ipsctp_tcb_lookup_key_struct;
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struct Ipsctp_tcb_struct;
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struct Ipsctp_transport_struct;
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typedef struct Ipsctp_timer_struct
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{
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/*
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* Required so the timer can be part of the 'timers' list in the
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* TCB structure.
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*/
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Ipcom_list list;
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/*
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* Absolute time when this timer expires.
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*/
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Ip_u64 msec_expires;
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/*
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* Handler to run if/when the timer expires.
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*/
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void (*action)(IP_CONST void *);
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struct Ipsctp_instance_struct *inst;
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struct Ipsctp_tcb_struct *tcb;
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struct Ipsctp_transport_struct *tp;
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struct Ipsctp_vtag_timewait_struct *timewait;
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Ipsctp_timo type;
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}
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Ipsctp_timer;
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typedef struct Ipsctp_netstat_tcbinfo
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{
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union Ip_sockaddr_union *raddr;
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Ip_u32 raddr_count;
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int state;
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}
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Ipsctp_netstat_tcbinfo;
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typedef struct Ipsctp_netstatinfo_struct
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{
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Ipsctp_netstat_tcbinfo *tcb;
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Ip_u32 tcb_count;
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union Ip_sockaddr_union *laddr;
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Ip_u32 laddr_count;
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}
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Ipsctp_netstatinfo;
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typedef struct Ipsctp_sendall_pkt_struct
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{
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Ipcom_list next;
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struct Ipsctp_sndrcvinfo sndrcvinfo;
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Ipcom_pkt *pkt;
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}
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Ipsctp_sendall_pkt;
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/*
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*===========================================================================
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* IPSCTP instance parameters
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*===========================================================================
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* The members of this structure are defined per recommendation in Section
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* 13.1 of RFC4960. The members represent IPSCTP instance parameters, which
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* are commonly used by all associations of the instance.
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*/
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typedef struct Ipsctp_instance_struct
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{
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/* Common information */
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Ipsctp_socket *sock; /* Points to the socket this instance is
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bound to */
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Ipcom_list assoc_list; /* list of current associations; list
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contains mappings to data consumers
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per association. */
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#ifndef IPCOM_FORWARDER_NAE
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Ipcom_list active; /* List of active Instance:s */
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#endif
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Ipcom_spinlock tcb_lock; /* protect all TCBs' pmtu, mss */
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Ip_u16 lport; /* locally bound IPSCTP port number, in network order */
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Ipcom_list laddr_list; /* list of addresses bound by this
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* instance. Passed to peer(s) in INIT
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* and/or INIT ACK chunks.
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* NOTE : address count be include in list */
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Ip_u32 inst_flags;
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Ipcom_atomic_t wait_readable;
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Ip_u32 recv_lowat; /* The low water mark for receiving */
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Ip_u32 send_lowat; /* The low water mark for sending */
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Ip_u32 linger_time; /* Time this socket will linger after close */
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Ipsctp_timer linger_timer; /* linger timer */
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Ip_u32 shut_guard_time; /* time of shutdown guard timer */
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Ip_u32 secret_time; /* time of secret timer */
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/* Secret information */
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Ip_u32 secret_key[IPSCTP_SECRETS_NUM][IPSCTP_NUMBER_OF_SECRETS];
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/* secret key used by this endpoint to
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compute the MAC. */
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Ip_u8 current_secret_number; /* current using secret number */
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Ip_u8 last_secret_number; /* last used secret number */
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struct Ip_timeval secret_change_time; /* secret change time */
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Ipsctp_timer secret_timer; /* secret timer */
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Ipsctp_timer sendall_timer; /* sendall timer, here we use per instance,
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not a global, because each has it own
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send buffer, we do not want one block
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other instance. */
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Ipcom_list sendall_pkt; /* sendall timer packet list */
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Ip_u32 congestion_control_module; /* Default congestion control module */
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Ip_u32 autoclose_time; /* autoclose time, im MSEC */
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Ip_u32 max_burst; /* maximum burst of packets
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* that can be emitted by this association
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*/
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Ip_u32 frag_point; /* size to do fragments */
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Ip_u32 pd_point; /* partial delivery point, Get or Set by
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* option SCTP_PARTIAL_DELIVERY_POINT */
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Ip_u32 context; /* Set or get by SCTP_CONTEXT */
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Ipsctp_sctp_sack_info sack_info; /*to control the sack */
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/* Socket Options when using ipcom_setsockopt(ipnet2\src\ipnet_sockopt.c) */
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struct Ipsctp_initmsg initmsg; /* Initiation Message option
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(sctp_initmsg) */
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Ipsctp_sctp_rtoinfo rtoinfo; /* Retransmission Timeout Parameters
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option(sctp_rtoinfo) */
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Ipsctp_sctp_paddrparams paddrparam; /* Peer Address Parameters option
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(sctp_paddrparams) */
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Ip_u32 feature_flags; /* Notification Interest Options
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(sctp_event_subscribe) */
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Ipsctp_sctp_assocparams assocparams; /* Association Parameters option
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(sctp_assocparams) */
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Ipsctp_sctp_sndrcvinfo sndrcvinfo; /* Header Information option
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(sctp_sndrcvinfo) */
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Ipcom_list recv_list; /* All chunks to be read by socket */
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/* Socket backlog information */
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Ipsctp_socket *parent; /* The listen socket that was
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used to create this socket */
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Ip_u16 backlog_len; /* Maximum number of entries in
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the backlog */
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Ip_u16 backlog_used; /* Number of used entries
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(pending + done) in the backlog */
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int *backlog_pending; /* Connections that are doing the
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four-way handshake */
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int *backlog_done; /* Connections that have finished the
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four-way handshake */
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#ifndef IPSCTP_USE_MULTIBUF
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Ip_u32 size_on_in_queue; /* chunk bytes in input stream's chunk queue,
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haven't been delivered to socket receive buffer.*/
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Ip_u32 cnt_on_in_queue; /* chunk count in input stream's chunk queue,
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haven't been delivered to socket receive buffer.*/
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Ip_u32 recv_chunks_cnt; /* chunks count in receive buffer */
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Ip_u32 send_chunks_cnt; /* chunks count in send buffer */
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#endif
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Ip_u32 sws_sender;
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Ip_u32 sws_receiver;
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int (*get_tcb_info)(Ipsctp_socket *sock,
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IP_CONST struct Ip_msghdr *msg,
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struct Ipsctp_sndrcvinfo *sndrcv,
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Ip_u32 *pmtu,
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Ip_u32 *mss,
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void **tcb_ret);
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Ipcom_list timers;
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}
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Ipsctp_instance;
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#ifdef IPSCTP_MIB
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typedef struct Ipsctp_mib_stats_struct
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{
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/* Begin: mib in RFC3873 */
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Ip_u32 sctp_Curr_Estab; /* Gauge32 */
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Ip_u32 sctp_Active_Estabs;
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Ip_u32 sctp_Passive_Estabs;
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Ip_u32 sctp_Aborteds;
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Ip_u32 sctp_Shutdowns;
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Ip_u32 sctp_OutOfBlues;
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Ip_u32 sctp_Checksum_Errors;
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Ip_u64 sctp_Out_Ctrl_Chunks;
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Ip_u64 sctp_Out_Order_Chunks;
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Ip_u64 sctp_Out_Unorder_Chunks;
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Ip_u64 sctp_In_Ctrl_Chunks;
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Ip_u64 sctp_In_Order_Chunks;
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Ip_u64 sctp_In_Unorder_Chunks;
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Ip_u64 sctp_Frag_UsrMsgs;
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Ip_u64 sctp_Reasm_UsrMsgs;
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Ip_u64 sctp_Out_SCTP_Packs;
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Ip_u64 sctp_In_SCTP_Packs;
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Ip_u32 sctp_Discontinuity_Time;
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/* End: mib in RFC3873 */
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}
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Ipsctp_mib_stats;
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typedef struct Ipsctp_params_sturct {
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Ip_s32 sctpRtoAlgorithm;
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Ip_u32 sctpRtoMin;
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Ip_u32 sctpRtoMax;
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Ip_u32 sctpRtoInitial;
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Ip_s32 sctpMaxAssocs;
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Ip_u32 sctpValCookieLife;
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Ip_u32 sctpMaxInitRetr;
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}Ipsctp_params;
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typedef struct Ipsctp_assoc_entry_struct {
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Ip_u32 sctpAssocId;
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Ip_u8 sctpAssocRemHostName[256];
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Ip_u32 sctpAssocLocalPort;
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Ip_u32 sctpAssocRemPort;
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Ip_s32 sctpAssocRemPrimAddrType;
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Ip_u8 sctpAssocRemPrimAddr[16];
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Ip_u32 sctpAssocHeartBeatInterval;
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Ip_s32 sctpAssocState;
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Ip_u32 sctpAssocInStreams;
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Ip_u32 sctpAssocOutStreams;
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Ip_u32 sctpAssocMaxRetr;
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Ip_u32 sctpAssocPrimProcess;
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Ip_u32 sctpAssocT1expireds;
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Ip_u32 sctpAssocT2expireds;
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Ip_u32 sctpAssocRtxChunks;
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Ip_u32 sctpAssocStartTime;
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Ip_u32 sctpAssocDiscontinuityTime;
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}Ipsctp_assoc_entry;
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typedef struct Ipsctp_assoc_local_addr_entry_struct
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{
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Ip_s32 sctpAssocLocalAddrType;
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Ip_u8 sctpAssocLocalAddr[16];
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Ip_u32 sctpAssocLocalAddrStartTime;
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Ip_u32 sctpAssocId;
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}Ipsctp_assoc_local_addr_entry;
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typedef struct Ipsctp_assoc_rem_addr_entry_struct {
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Ip_s32 sctpAssocRemAddrType;
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Ip_u8 sctpAssocRemAddr[16];
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Ip_s32 sctpAssocRemAddrActive;
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Ip_s32 sctpAssocRemAddrHBActive;
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Ip_u32 sctpAssocRemAddrRTO;
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Ip_u32 sctpAssocRemAddrMaxPathRtx;
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Ip_u32 sctpAssocRemAddrRtx;
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Ip_u32 sctpAssocRemAddrStartTime;
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Ip_u32 sctpAssocId;
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}Ipsctp_assoc_rem_addr_entry;
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#endif
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/*
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* Forward declarations
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*/
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struct Ipnet_dst_cache_struct;
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/*
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****************************************************************************
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* 6 PUBLIC FUNCTIONS
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****************************************************************************
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*/
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IP_PUBLIC int ipnet_sock_sctp_register(void);
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IP_GLOBAL void ipsctp_input(struct Ipnet_dst_cache_struct *dst,
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Ipcom_pkt *pkt);
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#ifdef IPCOM_USE_INET
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IP_PUBLIC void ipsctp_icmp4_cb(IP_CONST Ipcom_pkt *pkt);
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#endif
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#ifdef IPCOM_USE_INET6
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IP_PUBLIC void ipsctp_icmp6_cb(Ipcom_pkt *pkt, Ipnet_pkt_icmp6 *icmp6, Ipnet_pkt_ip6 *failed_ip6_hdr);
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#endif
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IP_PUBLIC void ipsctp_window_update(struct Ipnet_sig_sctp_wu *sig);
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IP_PUBLIC int ipsctp_usr_recv(Ipsctp_socket *sock,
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struct Ip_msghdr *msg,
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int flags);
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IP_PUBLIC void ipsctp_pkt_drain(void);
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IP_PUBLIC int ipsctp_usr_sock_get_tcb_info_tcp(Ipnet_socket *sock,
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IP_CONST struct Ip_msghdr *msg,
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struct Ipsctp_sndrcvinfo *sndrcv,
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Ip_u32 *pmtu,
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Ip_u32 *mss,
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void **tcb_ret);
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IP_PUBLIC int ipsctp_usr_sock_get_tcb_info_udp(Ipnet_socket *sock,
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IP_CONST struct Ip_msghdr *msg,
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struct Ipsctp_sndrcvinfo *sndrcv,
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Ip_u32 *pmtu,
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Ip_u32 *mss,
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void **tcb_ret);
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IP_PUBLIC int ipsctp_usr_sock_sendbuf_add_and_return(Ipnet_socket *sock,
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void *tcb_locked,
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int bytes);
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IP_PUBLIC void ipsctp_usr_sock_sendbuf_sub(Ipnet_socket *sock,
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void *tcb_locked,
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int bytes);
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IP_PUBLIC int ipsctp_output(Ipsctp_socket *sock,
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IP_CONST struct Ip_msghdr *msg,
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Ipcom_pkt *pkt);
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IP_PUBLIC void ipsctp_set_state(struct Ipnet_sig_sctp_set_state *sig);
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IP_PUBLIC Ip_err ipsctp_create(void);
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IP_PUBLIC const char *ipsctp_version(void);
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IP_PUBLIC int ipsctp_fls(Ip_u32 mask);
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IP_PUBLIC Ip_err ipsctp_start(void);
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IP_PUBLIC int
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ipsctp_accept(Ipsctp_socket *listen_sock,
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struct Ip_sockaddr *addr,
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Ip_socklen_t *addrlen);
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IP_PUBLIC int
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ipsctp_close(Ipsctp_socket *sock);
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IP_PUBLIC int
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ipsctp_listen(Ipsctp_socket *sock,
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int backlog);
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IP_PUBLIC void
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ipsctp_shutdown(Ipsctp_socket *sock, int how);
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IP_PUBLIC int
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ipsctp_getsockopt(Ipsctp_socket *sock,
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int level,
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int optname,
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void *optval,
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Ip_socklen_t *optlen);
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IP_PUBLIC int
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ipsctp_setsockopt(Ipsctp_socket *sock,
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int level,
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|
int optname,
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IP_CONST void *optval,
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Ip_socklen_t optlen);
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IP_PUBLIC int
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|
ipsctp_ioctl(Ipsctp_socket *sock,
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|
unsigned long request,
|
|
void *argp);
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|
|
IP_PUBLIC int
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|
ipsctp_getname(Ipsctp_socket *sock,
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|
struct Ip_sockaddr *name,
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|
Ip_socklen_t *namelen,
|
|
Ip_bool local);
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|
|
|
IP_PUBLIC int
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|
ipsctp_sock_init(Ipsctp_socket *sock);
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|
|
IP_PUBLIC void
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|
ipsctp_sock_free(Ipsctp_socket *sock);
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|
IP_PUBLIC int
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|
ipsctp_bind(Ipsctp_socket *sock,
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|
IP_CONST struct Ip_sockaddr *name,
|
|
Ip_socklen_t namelen);
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|
IP_PUBLIC int
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|
ipsctp_connect(Ipsctp_socket *sock,
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|
IP_CONST struct Ip_sockaddr *to);
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|
IP_PUBLIC Ipsctp_socket *
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|
ipsctp_sock_lookup_sa(Ip_u16 vr,
|
|
int sa_family,
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|
IP_CONST void *local_addr,
|
|
Ip_u16 local_port);
|
|
IP_PUBLIC void *
|
|
ipsctp_get_netstat_info(Ipsctp_socket *sock);
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|
IP_PUBLIC void
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|
ipsctp_sys_send_init(Ip_fd fd, Ip_u32 vtag);
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|
|
|
#ifdef IPSCTP_MIB
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|
IP_PUBLIC int
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|
ipsctp_mib_stats_lookup(Ipsctp_mib_stats **stats);
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|
|
|
IP_PUBLIC void
|
|
ipsctp_mib_stats_get(Ipsctp_mib_stats **stats);
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|
|
|
IP_PUBLIC int
|
|
ipsctp_mib_params_lookup(Ipsctp_params **params);
|
|
IP_PUBLIC Ipsctp_assoc_entry *
|
|
ipsctp_mib_assoc_entry_lookup(Ip_u32 vtag,
|
|
int getnext);
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|
IP_PUBLIC void
|
|
ipsctp_mib_set_assoc_state(Ipsctp_assoc_entry *assoc_entry,
|
|
Ip_s32 state);
|
|
IP_PUBLIC Ipsctp_assoc_local_addr_entry *
|
|
ipsctp_mib_assoc_local_addr_entry_lookup(Ip_u32 vtag,
|
|
Ip_s32 addrType,
|
|
Ip_u8 *addr,
|
|
int get_next);
|
|
IP_PUBLIC Ipsctp_assoc_rem_addr_entry *
|
|
ipsctp_mib_assoc_rem_addr_entry_lookup(Ip_u32 vtag,
|
|
Ip_s32 addrType,
|
|
Ip_u8 *addr,
|
|
int get_next);
|
|
|
|
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* IPSCTP_H */
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