tcp_fsm.h

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/**
 * @file tcp_fsm.h
 * @brief TCP finite state machine
 *
 * @section License
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 *
 * Copyright (C) 2010-2023 Oryx Embedded SARL. All rights reserved.
 *
 * This file is part of CycloneTCP Open.
 *
 * This program 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
 * of the License, or (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * @author Oryx Embedded SARL (www.oryx-embedded.com)
 * @version 2.2.4
 **/
 
#ifndef _TCP_FSM_H
#define _TCP_FSM_H
 
//Dependencies
#include "core/tcp.h"
 
//C++ guard
#ifdef __cplusplus
extern "C" {
#endif
 
//TCP FSM related functions
void tcpProcessSegment(NetInterface *interface, IpPseudoHeader *pseudoHeader,
   const NetBuffer *buffer, size_t offset, NetRxAncillary *ancillary);
 
void tcpStateClosed(NetInterface *interface,
   IpPseudoHeader *pseudoHeader, TcpHeader *segment, size_t length);
 
void tcpStateListen(Socket *socket, NetInterface *interface,
   IpPseudoHeader *pseudoHeader, TcpHeader *segment, size_t length);
 
void tcpStateSynSent(Socket *socket, TcpHeader *segment, size_t length);
 
void tcpStateSynReceived(Socket *socket, TcpHeader *segment,
   const NetBuffer *buffer, size_t offset, size_t length);
 
void tcpStateEstablished(Socket *socket, TcpHeader *segment,
   const NetBuffer *buffer, size_t offset, size_t length);
 
void tcpStateCloseWait(Socket *socket, TcpHeader *segment, size_t length);
 
void tcpStateLastAck(Socket *socket, TcpHeader *segment, size_t length);
 
void tcpStateFinWait1(Socket *socket, TcpHeader *segment,
   const NetBuffer *buffer, size_t offset, size_t length);
 
void tcpStateFinWait2(Socket *socket, TcpHeader *segment,
   const NetBuffer *buffer, size_t offset, size_t length);
 
void tcpStateClosing(Socket *socket, TcpHeader *segment, size_t length);
 
void tcpStateTimeWait(Socket *socket, TcpHeader *segment, size_t length);
 
//C++ guard
#ifdef __cplusplus
}
#endif
 
#endif