Jonathan Naylor
7 years ago
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c84df3db5e
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05c0cce1db
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/*
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* Copyright (C) 2009-2014,2016,2017,2018 by Jonathan Naylor G4KLX
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "YSFDefines.h"
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#include "FCSNetwork.h"
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#include "Utils.h"
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#include "Log.h"
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#include <cstdio>
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#include <cassert>
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#include <cstring>
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const unsigned int BUFFER_LENGTH = 200U;
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CFCSNetwork::CFCSNetwork(const std::string& address, unsigned int port, const std::string& callsign, bool debug) :
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m_socket(address, port),
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m_debug(debug),
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m_address(),
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m_port(0U),
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m_poll(NULL),
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m_unlink(NULL),
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m_buffer(1000U, "FCS Network Buffer")
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{
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m_poll = new unsigned char[14U];
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::memcpy(m_poll + 0U, "YSFP", 4U);
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m_unlink = new unsigned char[14U];
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::memcpy(m_unlink + 0U, "YSFU", 4U);
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std::string node = callsign;
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node.resize(YSF_CALLSIGN_LENGTH, ' ');
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for (unsigned int i = 0U; i < YSF_CALLSIGN_LENGTH; i++) {
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m_poll[i + 4U] = node.at(i);
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m_unlink[i + 4U] = node.at(i);
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}
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}
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CFCSNetwork::CFCSNetwork(unsigned int port, const std::string& callsign, bool debug) :
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m_socket(port),
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m_debug(debug),
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m_address(),
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m_port(0U),
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m_poll(NULL),
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m_unlink(NULL),
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m_buffer(1000U, "FCS Network Buffer")
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{
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m_poll = new unsigned char[14U];
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::memcpy(m_poll + 0U, "YSFP", 4U);
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m_unlink = new unsigned char[14U];
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::memcpy(m_unlink + 0U, "YSFU", 4U);
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std::string node = callsign;
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node.resize(YSF_CALLSIGN_LENGTH, ' ');
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for (unsigned int i = 0U; i < YSF_CALLSIGN_LENGTH; i++) {
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m_poll[i + 4U] = node.at(i);
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m_unlink[i + 4U] = node.at(i);
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}
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}
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CFCSNetwork::~CFCSNetwork()
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{
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delete[] m_poll;
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}
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bool CFCSNetwork::open()
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{
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LogMessage("Opening FCS network connection");
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return m_socket.open();
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}
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void CFCSNetwork::setDestination(const in_addr& address, unsigned int port)
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{
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m_address = address;
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m_port = port;
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}
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void CFCSNetwork::clearDestination()
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{
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m_address.s_addr = INADDR_NONE;
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m_port = 0U;
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}
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bool CFCSNetwork::write(const unsigned char* data)
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{
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assert(data != NULL);
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if (m_port == 0U)
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return true;
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if (m_debug)
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CUtils::dump(1U, "FCS Network Data Sent", data, 155U);
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return m_socket.write(data, 155U, m_address, m_port);
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}
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bool CFCSNetwork::writePoll()
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{
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if (m_port == 0U)
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return true;
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return m_socket.write(m_poll, 14U, m_address, m_port);
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}
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bool CFCSNetwork::writeUnlink()
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{
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if (m_port == 0U)
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return true;
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return m_socket.write(m_unlink, 14U, m_address, m_port);
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}
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void CFCSNetwork::clock(unsigned int ms)
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{
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if (m_port == 0U)
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return;
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unsigned char buffer[BUFFER_LENGTH];
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in_addr address;
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unsigned int port;
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int length = m_socket.read(buffer, BUFFER_LENGTH, address, port);
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if (length <= 0)
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return;
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if (address.s_addr != m_address.s_addr || port != m_port)
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return;
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if (m_debug)
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CUtils::dump(1U, "FCS Network Data Received", buffer, length);
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unsigned char len = length;
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m_buffer.addData(&len, 1U);
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m_buffer.addData(buffer, length);
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}
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unsigned int CFCSNetwork::read(unsigned char* data)
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{
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assert(data != NULL);
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if (m_buffer.isEmpty())
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return 0U;
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unsigned char len = 0U;
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m_buffer.getData(&len, 1U);
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m_buffer.getData(data, len);
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return len;
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}
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void CFCSNetwork::close()
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{
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m_socket.close();
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LogMessage("Closing FCS network connection");
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}
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@ -0,0 +1,61 @@
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/*
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* Copyright (C) 2009-2014,2016,2017,2018 by Jonathan Naylor G4KLX
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef FCSNetwork_H
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#define FCSNetwork_H
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#include "YSFDefines.h"
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#include "UDPSocket.h"
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#include "RingBuffer.h"
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#include <cstdint>
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#include <string>
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class CFCSNetwork {
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public:
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CFCSNetwork(const std::string& address, unsigned int port, const std::string& callsign, bool debug);
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CFCSNetwork(unsigned int port, const std::string& callsign, bool debug);
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~CFCSNetwork();
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bool open();
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void setDestination(const in_addr& address, unsigned int port);
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void clearDestination();
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bool write(const unsigned char* data);
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bool writePoll();
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bool writeUnlink();
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unsigned int read(unsigned char* data);
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void clock(unsigned int ms);
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void close();
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private:
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CUDPSocket m_socket;
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bool m_debug;
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in_addr m_address;
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unsigned int m_port;
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unsigned char* m_poll;
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unsigned char* m_unlink;
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CRingBuffer<unsigned char> m_buffer;
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};
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#endif
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