161 lines
3 KiB
C++
161 lines
3 KiB
C++
/*
|
|
* 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 "M17LICH.h"
|
|
#include "M17Utils.h"
|
|
#include "M17CRC.h"
|
|
|
|
#include <cassert>
|
|
|
|
CM17LICH::CM17LICH(const CM17LICH& lich) :
|
|
m_lich(NULL),
|
|
m_valid(false)
|
|
{
|
|
m_lich = new unsigned char[30U];
|
|
|
|
::memcpy(m_lich, lich.m_lich, 30U);
|
|
|
|
m_valid = lich.m_valid;
|
|
}
|
|
|
|
CM17LICH::CM17LICH() :
|
|
m_lich(NULL),
|
|
m_valid(false)
|
|
{
|
|
m_lich = new unsigned char[30U];
|
|
}
|
|
|
|
CM17LICH::~CM17LICH()
|
|
{
|
|
delete[] m_lich;
|
|
}
|
|
|
|
void CM17LICH::getNetwork(unsigned char* data) const
|
|
{
|
|
assert(data != NULL);
|
|
|
|
::memcpy(data, m_lich, 28U);
|
|
}
|
|
|
|
void CM17LICH::setNetwork(const unsigned char* data)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
::memcpy(m_lich, data, 28U);
|
|
|
|
m_valid = true;
|
|
}
|
|
|
|
std::string CM17LICH::getSource() const
|
|
{
|
|
if (!m_valid)
|
|
return "";
|
|
|
|
std::string callsign;
|
|
CM17Utils::decodeCallsign(m_lich + 6U, callsign);
|
|
|
|
return callsign;
|
|
}
|
|
|
|
void CM17LICH::setSource(const std::string& callsign)
|
|
{
|
|
CM17Utils::encodeCallsign(callsign, m_lich + 6U);
|
|
}
|
|
|
|
std::string CM17LICH::getDest() const
|
|
{
|
|
if (!m_valid)
|
|
return "";
|
|
|
|
std::string callsign;
|
|
CM17Utils::decodeCallsign(m_lich + 0U, callsign);
|
|
|
|
return callsign;
|
|
}
|
|
|
|
void CM17LICH::setDest(const std::string& callsign)
|
|
{
|
|
CM17Utils::encodeCallsign(callsign, m_lich + 0U);
|
|
}
|
|
|
|
unsigned char CM17LICH::getDataType() const
|
|
{
|
|
if (!m_valid)
|
|
return 0U;
|
|
|
|
return (m_lich[12U] >> 1) & 0x03U;
|
|
}
|
|
|
|
void CM17LICH::setDataType(unsigned char type)
|
|
{
|
|
m_lich[12U] &= 0xF9U;
|
|
m_lich[12U] |= (type << 1) & 0x06U;
|
|
}
|
|
|
|
void CM17LICH::reset()
|
|
{
|
|
::memset(m_lich, 0x00U, 30U);
|
|
|
|
m_valid = false;
|
|
}
|
|
|
|
bool CM17LICH::isValid() const
|
|
{
|
|
return m_valid;
|
|
}
|
|
|
|
void CM17LICH::getLinkSetup(unsigned char* data) const
|
|
{
|
|
assert(data != NULL);
|
|
|
|
::memcpy(data, m_lich, 30U);
|
|
|
|
CM17CRC::encodeCRC(data, 30U);
|
|
}
|
|
|
|
void CM17LICH::setLinkSetup(const unsigned char* data)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
::memcpy(m_lich, data, 30U);
|
|
|
|
m_valid = CM17CRC::checkCRC(m_lich, 30U);
|
|
}
|
|
|
|
void CM17LICH::getFragment(unsigned char* data, unsigned short fn) const
|
|
{
|
|
assert(data != NULL);
|
|
|
|
CM17CRC::encodeCRC(m_lich, 30U);
|
|
|
|
unsigned int n = (fn & 0x7FFFU) % 5U;
|
|
|
|
::memcpy(data, m_lich + (n * 6U), 6U);
|
|
}
|
|
|
|
void CM17LICH::setFragment(const unsigned char* data, unsigned short fn)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
unsigned int n = (fn & 0x7FFFU) % 5U;
|
|
|
|
::memcpy(m_lich + (n * 6U), data, 6U);
|
|
|
|
m_valid = CM17CRC::checkCRC(m_lich, 30U);
|
|
}
|