148 lines
3.5 KiB
C++
148 lines
3.5 KiB
C++
/*
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* Copyright (C) 2009-2014,2016,2020,2024 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 "P25Network.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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CP25Network::CP25Network(unsigned short port, const std::string& callsign, bool debug) :
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m_callsign(callsign),
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m_socket4(port),
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m_socket6(port),
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m_debug(debug)
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{
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assert(port > 0U);
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m_callsign.resize(10U, ' ');
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}
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CP25Network::~CP25Network()
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{
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}
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bool CP25Network::open()
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{
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LogInfo("Opening P25 network connection");
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sockaddr_storage addr4;
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addr4.ss_family = AF_INET;
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bool ret = m_socket4.open(addr4);
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if (!ret)
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return false;
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sockaddr_storage addr6;
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addr6.ss_family = AF_INET6;
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return m_socket6.open(addr6);
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}
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bool CP25Network::write(const unsigned char* data, unsigned int length, const sockaddr_storage& addr, unsigned int addrLen)
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{
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assert(data != NULL);
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assert(length > 0U);
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if (m_debug)
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CUtils::dump(1U, "P25 Network Data Sent", data, length);
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switch (addr.ss_family) {
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case AF_INET:
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return m_socket4.write(data, length, addr, addrLen);
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case AF_INET6:
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return m_socket6.write(data, length, addr, addrLen);
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default:
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LogError("Unknown socket address family - %u", addr.ss_family);
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return false;
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}
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}
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bool CP25Network::poll(const sockaddr_storage& addr, unsigned int addrLen)
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{
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unsigned char data[15U];
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data[0U] = 0xF0U;
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for (unsigned int i = 0U; i < 10U; i++)
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data[i + 1U] = m_callsign.at(i);
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if (m_debug)
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CUtils::dump(1U, "P25 Network Poll Sent", data, 11U);
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switch (addr.ss_family) {
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case AF_INET:
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return m_socket4.write(data, 11U, addr, addrLen);
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case AF_INET6:
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return m_socket6.write(data, 11U, addr, addrLen);
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default:
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LogError("Unknown socket address family - %u", addr.ss_family);
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return false;
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}
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}
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bool CP25Network::unlink(const sockaddr_storage& addr, unsigned int addrLen)
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{
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unsigned char data[15U];
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data[0U] = 0xF1U;
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for (unsigned int i = 0U; i < 10U; i++)
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data[i + 1U] = m_callsign.at(i);
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if (m_debug)
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CUtils::dump(1U, "P25 Network Unlink Sent", data, 11U);
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switch (addr.ss_family) {
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case AF_INET:
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return m_socket4.write(data, 11U, addr, addrLen);
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case AF_INET6:
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return m_socket6.write(data, 11U, addr, addrLen);
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default:
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LogError("Unknown socket address family - %u", addr.ss_family);
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return false;
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}
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}
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unsigned int CP25Network::read(unsigned char* data, unsigned int length, sockaddr_storage& addr, unsigned int& addrLen)
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{
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assert(data != NULL);
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assert(length > 0U);
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int len = m_socket4.read(data, length, addr, addrLen);
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if (len <= 0)
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len = m_socket6.read(data, length, addr, addrLen);
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if (len <= 0)
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return 0U;
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if (m_debug)
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CUtils::dump(1U, "P25 Network Data Received", data, len);
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return len;
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}
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void CP25Network::close()
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{
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m_socket4.close();
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m_socket6.close();
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LogInfo("Closing P25 network connection");
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}
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