mirror of
https://github.com/ShaYmez/MMDVM_CM.git
synced 2024-11-14 12:11:49 -05:00
674 lines
15 KiB
C++
674 lines
15 KiB
C++
/*
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* Copyright (C) 2015,2016,2017,2018 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 "DMRNetwork.h"
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#include "StopWatch.h"
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#include "SHA256.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 = 500U;
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const unsigned int HOMEBREW_DATA_PACKET_LENGTH = 55U;
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CDMRNetwork::CDMRNetwork(const std::string& address, unsigned int port, unsigned int local, unsigned int id, const std::string& password, bool duplex, const char* version, bool debug, bool slot1, bool slot2, HW_TYPE hwType, unsigned int jitter) :
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m_address(),
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m_port(port),
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m_id(NULL),
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m_password(password),
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m_duplex(duplex),
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m_version(version),
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m_debug(debug),
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m_socket(local),
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m_enabled(false),
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m_slot1(slot1),
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m_slot2(slot2),
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m_delayBuffers(NULL),
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m_hwType(hwType),
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m_status(WAITING_CONNECT),
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m_retryTimer(1000U, 10U),
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m_timeoutTimer(1000U, 60U),
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m_buffer(NULL),
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m_salt(NULL),
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m_streamId(NULL),
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m_options(),
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m_callsign(),
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m_rxFrequency(0U),
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m_txFrequency(0U),
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m_power(0U),
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m_colorCode(0U),
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m_latitude(0.0F),
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m_longitude(0.0F),
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m_height(0),
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m_location(),
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m_description(),
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m_url(),
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m_beacon(false)
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{
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assert(!address.empty());
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assert(port > 0U);
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assert(id > 1000U);
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assert(!password.empty());
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assert(jitter > 0U);
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m_address = CUDPSocket::lookup(address);
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m_buffer = new unsigned char[BUFFER_LENGTH];
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m_salt = new unsigned char[sizeof(uint32_t)];
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m_id = new uint8_t[4U];
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m_streamId = new uint32_t[2U];
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m_delayBuffers = new CDelayBuffer*[3U];
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m_delayBuffers[1U] = new CDelayBuffer("DMR Slot 1", HOMEBREW_DATA_PACKET_LENGTH, DMR_SLOT_TIME, jitter, debug);
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m_delayBuffers[2U] = new CDelayBuffer("DMR Slot 2", HOMEBREW_DATA_PACKET_LENGTH, DMR_SLOT_TIME, jitter, debug);
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m_id[0U] = id >> 24;
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m_id[1U] = id >> 16;
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m_id[2U] = id >> 8;
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m_id[3U] = id >> 0;
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CStopWatch stopWatch;
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::srand(stopWatch.start());
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m_streamId[0U] = ::rand() + 1U;
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m_streamId[1U] = ::rand() + 1U;
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}
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CDMRNetwork::~CDMRNetwork()
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{
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delete m_delayBuffers[1U];
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delete m_delayBuffers[2U];
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delete[] m_buffer;
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delete[] m_salt;
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delete[] m_streamId;
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delete[] m_id;
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delete[] m_delayBuffers;
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}
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void CDMRNetwork::setOptions(const std::string& options)
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{
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m_options = options;
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}
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void CDMRNetwork::setConfig(const std::string& callsign, unsigned int rxFrequency, unsigned int txFrequency, unsigned int power, unsigned int colorCode, float latitude, float longitude, int height, const std::string& location, const std::string& description, const std::string& url)
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{
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m_callsign = callsign;
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m_rxFrequency = rxFrequency;
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m_txFrequency = txFrequency;
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m_power = power;
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m_colorCode = colorCode;
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m_latitude = latitude;
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m_longitude = longitude;
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m_height = height;
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m_location = location;
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m_description = description;
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m_url = url;
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}
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bool CDMRNetwork::open()
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{
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LogMessage("DMR, Opening DMR Network");
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m_status = WAITING_CONNECT;
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m_timeoutTimer.stop();
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m_retryTimer.start();
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return true;
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}
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void CDMRNetwork::enable(bool enabled)
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{
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m_enabled = enabled;
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}
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bool CDMRNetwork::read(CDMRData& data)
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{
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if (m_status != RUNNING)
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return false;
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for (unsigned int slotNo = 1U; slotNo <= 2U; slotNo++) {
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unsigned int length = 0U;
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B_STATUS status = BS_NO_DATA;
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status = m_delayBuffers[slotNo]->getData(m_buffer, length);
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if (status != BS_NO_DATA) {
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unsigned char seqNo = m_buffer[4U];
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unsigned int srcId = (m_buffer[5U] << 16) | (m_buffer[6U] << 8) | (m_buffer[7U] << 0);
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unsigned int dstId = (m_buffer[8U] << 16) | (m_buffer[9U] << 8) | (m_buffer[10U] << 0);
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FLCO flco = (m_buffer[15U] & 0x40U) == 0x40U ? FLCO_USER_USER : FLCO_GROUP;
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data.setSeqNo(seqNo);
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data.setSlotNo(slotNo);
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data.setSrcId(srcId);
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data.setDstId(dstId);
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data.setFLCO(flco);
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data.setMissing(status == BS_MISSING);
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bool dataSync = (m_buffer[15U] & 0x20U) == 0x20U;
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bool voiceSync = (m_buffer[15U] & 0x10U) == 0x10U;
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if (dataSync) {
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unsigned char dataType = m_buffer[15U] & 0x0FU;
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data.setData(m_buffer + 20U);
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data.setDataType(dataType);
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data.setN(0U);
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} else if (voiceSync) {
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data.setData(m_buffer + 20U);
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data.setDataType(DT_VOICE_SYNC);
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data.setN(0U);
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} else {
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unsigned char n = m_buffer[15U] & 0x0FU;
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data.setData(m_buffer + 20U);
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data.setDataType(DT_VOICE);
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data.setN(n);
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}
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return true;
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}
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}
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return false;
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}
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bool CDMRNetwork::write(const CDMRData& data)
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{
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if (m_status != RUNNING)
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return false;
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unsigned char buffer[HOMEBREW_DATA_PACKET_LENGTH];
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::memset(buffer, 0x00U, HOMEBREW_DATA_PACKET_LENGTH);
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buffer[0U] = 'D';
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buffer[1U] = 'M';
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buffer[2U] = 'R';
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buffer[3U] = 'D';
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unsigned int srcId = data.getSrcId();
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buffer[5U] = srcId >> 16;
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buffer[6U] = srcId >> 8;
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buffer[7U] = srcId >> 0;
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unsigned int dstId = data.getDstId();
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buffer[8U] = dstId >> 16;
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buffer[9U] = dstId >> 8;
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buffer[10U] = dstId >> 0;
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::memcpy(buffer + 11U, m_id, 4U);
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unsigned int slotNo = data.getSlotNo();
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// Individual slot disabling
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if (slotNo == 1U && !m_slot1)
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return false;
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if (slotNo == 2U && !m_slot2)
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return false;
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buffer[15U] = slotNo == 1U ? 0x00U : 0x80U;
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FLCO flco = data.getFLCO();
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buffer[15U] |= flco == FLCO_GROUP ? 0x00U : 0x40U;
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unsigned int slotIndex = slotNo - 1U;
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unsigned int count = 1U;
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unsigned char dataType = data.getDataType();
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if (dataType == DT_VOICE_SYNC) {
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buffer[15U] |= 0x10U;
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} else if (dataType == DT_VOICE) {
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buffer[15U] |= data.getN();
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} else {
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if (dataType == DT_VOICE_LC_HEADER)
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count = 2U;
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buffer[15U] |= (0x20U | dataType);
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}
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buffer[4U] = data.getSeqNo();
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::memcpy(buffer + 16U, m_streamId + slotIndex, 4U);
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data.getData(buffer + 20U);
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buffer[53U] = data.getBER();
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buffer[54U] = data.getRSSI();
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if (m_debug)
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CUtils::dump(1U, "Network Transmitted", buffer, HOMEBREW_DATA_PACKET_LENGTH);
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for (unsigned int i = 0U; i < count; i++)
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write(buffer, HOMEBREW_DATA_PACKET_LENGTH);
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return true;
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}
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bool CDMRNetwork::writePosition(unsigned int id, const unsigned char* data)
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{
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if (m_status != RUNNING)
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return false;
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unsigned char buffer[20U];
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::memcpy(buffer + 0U, "DMRG", 4U);
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::memcpy(buffer + 4U, m_id, 4U);
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buffer[8U] = id >> 16;
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buffer[9U] = id >> 8;
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buffer[10U] = id >> 0;
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::memcpy(buffer + 11U, data + 2U, 7U);
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return write(buffer, 18U);
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}
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bool CDMRNetwork::writeTalkerAlias(unsigned int id, unsigned char type, const unsigned char* data)
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{
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if (m_status != RUNNING)
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return false;
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unsigned char buffer[20U];
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::memcpy(buffer + 0U, "DMRA", 4U);
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::memcpy(buffer + 4U, m_id, 4U);
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buffer[8U] = id >> 16;
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buffer[9U] = id >> 8;
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buffer[10U] = id >> 0;
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buffer[11U] = type;
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::memcpy(buffer + 12U, data + 2U, 7U);
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return write(buffer, 19U);
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}
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void CDMRNetwork::close()
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{
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LogMessage("DMR, Closing DMR Network");
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if (m_status == RUNNING) {
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unsigned char buffer[9U];
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::memcpy(buffer + 0U, "RPTCL", 5U);
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::memcpy(buffer + 5U, m_id, 4U);
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write(buffer, 9U);
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}
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m_socket.close();
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m_retryTimer.stop();
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m_timeoutTimer.stop();
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}
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bool CDMRNetwork::clock(unsigned int ms)
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{
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bool r = false;
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m_delayBuffers[1U]->clock(ms);
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m_delayBuffers[2U]->clock(ms);
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if (m_status == WAITING_CONNECT) {
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m_retryTimer.clock(ms);
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if (m_retryTimer.isRunning() && m_retryTimer.hasExpired()) {
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bool ret = m_socket.open();
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if (ret) {
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ret = writeLogin();
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if (!ret)
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return true;
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m_status = WAITING_LOGIN;
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m_timeoutTimer.start();
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}
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m_retryTimer.start();
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}
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return false;
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}
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in_addr address;
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unsigned int port;
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int length = m_socket.read(m_buffer, BUFFER_LENGTH, address, port);
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if (length < 0) {
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LogError("DMR, Socket has failed, retrying connection to the master");
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close();
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open();
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return true;
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}
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// if (m_debug && length > 0)
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// CUtils::dump(1U, "Network Received", m_buffer, length);
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if (length > 0 && m_address.s_addr == address.s_addr && m_port == port) {
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if (::memcmp(m_buffer, "DMRD", 4U) == 0) {
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if (m_enabled) {
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if (m_debug)
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CUtils::dump(1U, "Network Received", m_buffer, length);
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receiveData(m_buffer, length);
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}
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} else if (::memcmp(m_buffer, "MSTNAK", 6U) == 0) {
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if (m_status == RUNNING) {
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LogWarning("DMR, Login to the master has failed, retrying login ...");
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m_status = WAITING_LOGIN;
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m_timeoutTimer.start();
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m_retryTimer.start();
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} else {
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/* Once the modem death spiral has been prevented in Modem.cpp
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the Network sometimes times out and reaches here.
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We want it to reconnect so... */
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LogError("DMR, Login to the master has failed, retrying network ...");
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close();
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open();
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return true;
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}
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} else if (::memcmp(m_buffer, "RPTACK", 6U) == 0) {
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switch (m_status) {
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case WAITING_LOGIN:
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LogDebug("DMR, Sending authorisation");
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::memcpy(m_salt, m_buffer + 6U, sizeof(uint32_t));
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writeAuthorisation();
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m_status = WAITING_AUTHORISATION;
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m_timeoutTimer.start();
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m_retryTimer.start();
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break;
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case WAITING_AUTHORISATION:
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LogDebug("DMR, Sending configuration");
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writeConfig();
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m_status = WAITING_CONFIG;
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m_timeoutTimer.start();
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m_retryTimer.start();
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break;
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case WAITING_CONFIG:
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if (m_options.empty()) {
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LogMessage("DMR, Logged into the master successfully");
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m_status = RUNNING;
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} else {
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LogDebug("DMR, Sending options");
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writeOptions();
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m_status = WAITING_OPTIONS;
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}
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m_timeoutTimer.start();
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m_retryTimer.start();
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break;
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case WAITING_OPTIONS:
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LogMessage("DMR, Logged into the master successfully");
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m_status = RUNNING;
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m_timeoutTimer.start();
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m_retryTimer.start();
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break;
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default:
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break;
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}
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} else if (::memcmp(m_buffer, "MSTCL", 5U) == 0) {
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LogError("DMR, Master is closing down");
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close();
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open();
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r = true;
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} else if (::memcmp(m_buffer, "MSTPONG", 7U) == 0) {
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m_timeoutTimer.start();
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} else if (::memcmp(m_buffer, "RPTSBKN", 7U) == 0) {
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m_beacon = true;
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} else {
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CUtils::dump("Unknown packet from the master", m_buffer, length);
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}
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}
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m_retryTimer.clock(ms);
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if (m_retryTimer.isRunning() && m_retryTimer.hasExpired()) {
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switch (m_status) {
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case WAITING_LOGIN:
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writeLogin();
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break;
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case WAITING_AUTHORISATION:
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writeAuthorisation();
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break;
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case WAITING_OPTIONS:
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writeOptions();
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break;
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case WAITING_CONFIG:
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writeConfig();
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break;
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case RUNNING:
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writePing();
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break;
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default:
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break;
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}
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m_retryTimer.start();
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}
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m_timeoutTimer.clock(ms);
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if (m_timeoutTimer.isRunning() && m_timeoutTimer.hasExpired()) {
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LogError("DMR, Connection to the master has timed out, retrying connection");
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close();
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open();
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r = true;
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}
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return r;
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}
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void CDMRNetwork::reset(unsigned int slotNo)
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{
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assert(slotNo == 1U || slotNo == 2U);
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if (slotNo == 1U) {
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m_delayBuffers[1U]->reset();
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m_streamId[0U] = ::rand() + 1U;
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} else {
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m_delayBuffers[2U]->reset();
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m_streamId[1U] = ::rand() + 1U;
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}
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}
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bool CDMRNetwork::isConnected() const
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{
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return m_status == RUNNING;
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}
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void CDMRNetwork::receiveData(const unsigned char* data, unsigned int length)
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{
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assert(data != NULL);
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assert(length > 0U);
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unsigned int slotNo = (data[15U] & 0x80U) == 0x80U ? 2U : 1U;
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// DMO mode slot disabling
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if (slotNo == 1U && !m_duplex)
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return;
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// Individual slot disabling
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if (slotNo == 1U && !m_slot1)
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return;
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if (slotNo == 2U && !m_slot2)
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return;
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m_delayBuffers[slotNo]->addData(data, length);
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}
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bool CDMRNetwork::writeLogin()
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{
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unsigned char buffer[8U];
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::memcpy(buffer + 0U, "RPTL", 4U);
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::memcpy(buffer + 4U, m_id, 4U);
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return write(buffer, 8U);
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}
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bool CDMRNetwork::writeAuthorisation()
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{
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size_t size = m_password.size();
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unsigned char* in = new unsigned char[size + sizeof(uint32_t)];
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::memcpy(in, m_salt, sizeof(uint32_t));
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for (size_t i = 0U; i < size; i++)
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in[i + sizeof(uint32_t)] = m_password.at(i);
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unsigned char out[40U];
|
|
::memcpy(out + 0U, "RPTK", 4U);
|
|
::memcpy(out + 4U, m_id, 4U);
|
|
|
|
CSHA256 sha256;
|
|
sha256.buffer(in, (unsigned int)(size + sizeof(uint32_t)), out + 8U);
|
|
|
|
delete[] in;
|
|
|
|
return write(out, 40U);
|
|
}
|
|
|
|
bool CDMRNetwork::writeOptions()
|
|
{
|
|
char buffer[300U];
|
|
|
|
::memcpy(buffer + 0U, "RPTO", 4U);
|
|
::memcpy(buffer + 4U, m_id, 4U);
|
|
::strcpy(buffer + 8U, m_options.c_str());
|
|
|
|
return write((unsigned char*)buffer, (unsigned int)m_options.length() + 8U);
|
|
}
|
|
|
|
bool CDMRNetwork::writeConfig()
|
|
{
|
|
const char* software;
|
|
char slots = '0';
|
|
if (m_duplex) {
|
|
if (m_slot1 && m_slot2)
|
|
slots = '3';
|
|
else if (m_slot1 && !m_slot2)
|
|
slots = '1';
|
|
else if (!m_slot1 && m_slot2)
|
|
slots = '2';
|
|
|
|
switch (m_hwType) {
|
|
case HWT_MMDVM:
|
|
software = "MMDVM";
|
|
break;
|
|
case HWT_MMDVM_HS:
|
|
software = "MMDVM_MMDVM_HS";
|
|
break;
|
|
default:
|
|
software = "MMDVM_Unknown";
|
|
break;
|
|
}
|
|
} else {
|
|
slots = '4';
|
|
|
|
switch (m_hwType) {
|
|
case HWT_MMDVM:
|
|
software = "MMDVM_DMO";
|
|
break;
|
|
case HWT_DVMEGA:
|
|
software = "MMDVM_DVMega";
|
|
break;
|
|
case HWT_MMDVM_ZUMSPOT:
|
|
software = "MMDVM_ZUMspot";
|
|
break;
|
|
case HWT_MMDVM_HS_HAT:
|
|
software = "MMDVM_MMDVM_HS_Hat";
|
|
break;
|
|
case HWT_MMDVM_HS:
|
|
software = "MMDVM_MMDVM_HS";
|
|
break;
|
|
default:
|
|
software = "MMDVM_Unknown";
|
|
break;
|
|
}
|
|
}
|
|
|
|
char buffer[400U];
|
|
|
|
::memcpy(buffer + 0U, "RPTC", 4U);
|
|
::memcpy(buffer + 4U, m_id, 4U);
|
|
|
|
char latitude[20U];
|
|
::sprintf(latitude, "%08f", m_latitude);
|
|
|
|
char longitude[20U];
|
|
::sprintf(longitude, "%09f", m_longitude);
|
|
|
|
unsigned int power = m_power;
|
|
if (power > 99U)
|
|
power = 99U;
|
|
|
|
int height = m_height;
|
|
if (height > 999)
|
|
height = 999;
|
|
|
|
::sprintf(buffer + 8U, "%-8.8s%09u%09u%02u%02u%8.8s%9.9s%03d%-20.20s%-19.19s%c%-124.124s%-40.40s%-40.40s", m_callsign.c_str(),
|
|
m_rxFrequency, m_txFrequency, power, m_colorCode, latitude, longitude, height, m_location.c_str(),
|
|
m_description.c_str(), slots, m_url.c_str(), m_version, software);
|
|
|
|
return write((unsigned char*)buffer, 302U);
|
|
}
|
|
|
|
bool CDMRNetwork::writePing()
|
|
{
|
|
unsigned char buffer[11U];
|
|
|
|
::memcpy(buffer + 0U, "RPTPING", 7U);
|
|
::memcpy(buffer + 7U, m_id, 4U);
|
|
|
|
if (m_debug)
|
|
CUtils::dump(1U, "DMR Network Ping Sent", buffer, 11U);
|
|
|
|
return write(buffer, 11U);
|
|
}
|
|
|
|
bool CDMRNetwork::wantsBeacon()
|
|
{
|
|
bool beacon = m_beacon;
|
|
|
|
m_beacon = false;
|
|
|
|
return beacon;
|
|
}
|
|
|
|
bool CDMRNetwork::write(const unsigned char* data, unsigned int length)
|
|
{
|
|
assert(data != NULL);
|
|
assert(length > 0U);
|
|
|
|
// if (m_debug)
|
|
// CUtils::dump(1U, "Network Transmitted", data, length);
|
|
|
|
bool ret = m_socket.write(data, length, m_address, m_port);
|
|
if (!ret) {
|
|
LogError("DMR, Socket has failed when writing data to the master, retrying connection");
|
|
m_socket.close();
|
|
open();
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|