MMDVMHost-Private/AX25Network.cpp

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2020-06-08 15:33:20 +00:00
/*
* Copyright (C) 2020 by Jonathan Naylor G4KLX
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "AX25Network.h"
#include "Defines.h"
#include "Utils.h"
#include "Log.h"
#include <cstdio>
#include <cassert>
#include <cstring>
const unsigned int BUFFER_LENGTH = 200U;
CAX25Network::CAX25Network(const std::string& localAddress, unsigned int localPort, const std::string& gatewayAddress, unsigned int gatewayPort, bool debug) :
m_socket(localAddress, localPort),
m_address(),
m_port(gatewayPort),
m_debug(debug),
m_enabled(false)
{
assert(gatewayPort > 0U);
assert(!gatewayAddress.empty());
m_address = CUDPSocket::lookup(gatewayAddress);
}
CAX25Network::~CAX25Network()
{
}
bool CAX25Network::open()
{
LogMessage("Opening AX25 network connection");
if (m_address.s_addr == INADDR_NONE)
return false;
return m_socket.open();
}
bool CAX25Network::writeAX25(const unsigned char* data, unsigned int length)
{
assert(data != NULL);
unsigned char buffer[110U];
::memset(buffer, 0x00U, 110U);
buffer[0U] = 'A';
buffer[1U] = 'X';
buffer[2U] = '2';
buffer[3U] = '5';
::memcpy(buffer + 4U, data, length);
if (m_debug)
CUtils::dump(1U, "AX25 Network Data Sent", buffer, length + 4U);
return m_socket.write(buffer, length + 4U, m_address, m_port);
}
bool CAX25Network::writeMICE(const unsigned char* data, unsigned int length)
{
assert(data != NULL);
unsigned char buffer[110U];
::memset(buffer, 0x00U, 110U);
buffer[0U] = 'M';
buffer[1U] = 'I';
buffer[2U] = 'C';
buffer[3U] = 'E';
::memcpy(buffer + 4U, data, length);
if (m_debug)
CUtils::dump(1U, "AX25 Network Data Sent", buffer, length + 4U);
return m_socket.write(buffer, length + 4U, m_address, m_port);
}
void CAX25Network::reset()
{
}
void CAX25Network::close()
{
m_socket.close();
LogMessage("Closing AX25 network connection");
}
void CAX25Network::enable(bool enabled)
{
m_enabled = enabled;
}