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MMDVM_CM/NXDN2DMR/NXDN2DMR.cpp
Andy CA6JAU f2cc04bbb2 Fix for XLX "echo back" bug in NXDN2DMR
2018-09-23 19:36:48 -03:00

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/*
* Copyright (C) 2016,2017 by Jonathan Naylor G4KLX
* Copyright (C) 2018 by Andy Uribe CA6JAU
*
* 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 "NXDN2DMR.h"
#if defined(_WIN32) || defined(_WIN64)
#include <Windows.h>
#else
#include <sys/time.h>
#include <unistd.h>
#include <signal.h>
#include <fcntl.h>
#include <pwd.h>
#endif
#define DMR_FRAME_PER 55U
#define NXDN_FRAME_PER 75U
#define NXDNGW_DSTID_DEF 20U
#define XLX_SLOT 2U
#define XLX_COLOR_CODE 3U
#if defined(_WIN32) || defined(_WIN64)
const char* DEFAULT_INI_FILE = "NXDN2DMR.ini";
#else
const char* DEFAULT_INI_FILE = "/etc/NXDN2DMR.ini";
#endif
const char* HEADER1 = "This software is for use on amateur radio networks only,";
const char* HEADER2 = "it is to be used for educational purposes only. Its use on";
const char* HEADER3 = "commercial networks is strictly prohibited.";
const char* HEADER4 = "Copyright(C) 2018 by CA6JAU, G4KLX and others";
#include <functional>
#include <algorithm>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <clocale>
#include <cctype>
int end = 0;
#if !defined(_WIN32) && !defined(_WIN64)
void sig_handler(int signo)
{
if (signo == SIGTERM) {
end = 1;
::fprintf(stdout, "Received SIGTERM\n");
}
}
#endif
int main(int argc, char** argv)
{
const char* iniFile = DEFAULT_INI_FILE;
if (argc > 1) {
for (int currentArg = 1; currentArg < argc; ++currentArg) {
std::string arg = argv[currentArg];
if ((arg == "-v") || (arg == "--version")) {
::fprintf(stdout, "NXDN2DMR version %s\n", VERSION);
return 0;
} else if (arg.substr(0, 1) == "-") {
::fprintf(stderr, "Usage: NXDN2DMR [-v|--version] [filename]\n");
return 1;
} else {
iniFile = argv[currentArg];
}
}
}
#if !defined(_WIN32) && !defined(_WIN64)
// Capture SIGTERM to finish gracelessly
if (signal(SIGTERM, sig_handler) == SIG_ERR)
::fprintf(stdout, "Can't catch SIGTERM\n");
#endif
CNXDN2DMR* gateway = new CNXDN2DMR(std::string(iniFile));
int ret = gateway->run();
delete gateway;
return ret;
}
CNXDN2DMR::CNXDN2DMR(const std::string& configFile) :
m_callsign(),
m_nxdnTG(1U),
m_conf(configFile),
m_dmrNetwork(NULL),
m_nxdnNetwork(NULL),
m_dmrlookup(NULL),
m_nxdnlookup(NULL),
m_conv(),
m_colorcode(1U),
m_srcHS(1U),
m_defsrcid(1U),
m_dstid(1U),
m_dmrpc(false),
m_dmrSrc(1U),
m_dmrDst(1U),
m_nxdnSrc(1U),
m_nxdnDst(1U),
m_dmrLastDT(0U),
m_nxdnFrame(NULL),
m_dmrFrame(NULL),
m_dmrFrames(0U),
m_nxdnFrames(0U),
m_EmbeddedLC(),
m_dmrflco(FLCO_GROUP),
m_dmrinfo(false),
m_nxdninfo(false),
m_xlxmodule(),
m_xlxConnected(false),
m_xlxReflectors(NULL),
m_xlxrefl(0U),
m_defaultID(65519U),
m_firstSync(false)
{
m_nxdnFrame = new unsigned char[200U];
m_dmrFrame = new unsigned char[50U];
::memset(m_nxdnFrame, 0U, 200U);
::memset(m_dmrFrame, 0U, 50U);
}
CNXDN2DMR::~CNXDN2DMR()
{
delete[] m_nxdnFrame;
delete[] m_dmrFrame;
}
int CNXDN2DMR::run()
{
bool ret = m_conf.read();
if (!ret) {
::fprintf(stderr, "NXDN2DMR: cannot read the .ini file\n");
return 1;
}
setlocale(LC_ALL, "C");
unsigned int logDisplayLevel = m_conf.getLogDisplayLevel();
#if !defined(_WIN32) && !defined(_WIN64)
if(m_conf.getDaemon())
logDisplayLevel = 0U;
#endif
#if !defined(_WIN32) && !defined(_WIN64)
bool m_daemon = m_conf.getDaemon();
if (m_daemon) {
// Create new process
pid_t pid = ::fork();
if (pid == -1) {
::fprintf(stderr, "Couldn't fork() , exiting\n");
return -1;
} else if (pid != 0)
exit(EXIT_SUCCESS);
// Create new session and process group
if (::setsid() == -1) {
::fprintf(stderr, "Couldn't setsid(), exiting\n");
return -1;
}
// Set the working directory to the root directory
if (::chdir("/") == -1) {
::fprintf(stderr, "Couldn't cd /, exiting\n");
return -1;
}
// If we are currently root...
if (getuid() == 0) {
struct passwd* user = ::getpwnam("mmdvm");
if (user == NULL) {
::fprintf(stderr, "Could not get the mmdvm user, exiting\n");
return -1;
}
uid_t mmdvm_uid = user->pw_uid;
gid_t mmdvm_gid = user->pw_gid;
// Set user and group ID's to mmdvm:mmdvm
if (setgid(mmdvm_gid) != 0) {
::fprintf(stderr, "Could not set mmdvm GID, exiting\n");
return -1;
}
if (setuid(mmdvm_uid) != 0) {
::fprintf(stderr, "Could not set mmdvm UID, exiting\n");
return -1;
}
// Double check it worked (AKA Paranoia)
if (setuid(0) != -1) {
::fprintf(stderr, "It's possible to regain root - something is wrong!, exiting\n");
return -1;
}
}
}
#endif
ret = ::LogInitialise(m_conf.getLogFilePath(), m_conf.getLogFileRoot(), m_conf.getLogFileLevel(), logDisplayLevel);
if (!ret) {
::fprintf(stderr, "NXDN2DMR: unable to open the log file\n");
return 1;
}
#if !defined(_WIN32) && !defined(_WIN64)
if (m_daemon) {
::close(STDIN_FILENO);
::close(STDOUT_FILENO);
::close(STDERR_FILENO);
}
#endif
LogInfo(HEADER1);
LogInfo(HEADER2);
LogInfo(HEADER3);
LogInfo(HEADER4);
m_callsign = m_conf.getCallsign();
m_nxdnTG = m_conf.getTG();
bool debug = m_conf.getDMRNetworkDebug();
in_addr dstAddress = CUDPSocket::lookup(m_conf.getDstAddress());
unsigned int dstPort = m_conf.getDstPort();
std::string localAddress = m_conf.getLocalAddress();
unsigned int localPort = m_conf.getLocalPort();
m_defaultID = m_conf.getDefaultID();
std::string fileName = m_conf.getDMRXLXFile();
m_xlxReflectors = new CReflectors(fileName, 60U);
m_xlxReflectors->load();
m_nxdnNetwork = new CNXDNNetwork(localAddress, localPort, m_callsign, debug);
m_nxdnNetwork->setDestination(dstAddress, dstPort);
ret = m_nxdnNetwork->open();
if (!ret) {
::LogError("Cannot open the NXDN network port");
::LogFinalise();
return 1;
}
ret = createDMRNetwork();
if (!ret) {
::LogError("Cannot open DMR Network");
::LogFinalise();
return 1;
}
std::string lookupFile = m_conf.getDMRIdLookupFile();
unsigned int reloadTime = m_conf.getDMRIdLookupTime();
m_dmrlookup = new CDMRLookup(lookupFile, reloadTime);
m_dmrlookup->read();
lookupFile = m_conf.getNXDNIdLookupFile();
reloadTime = m_conf.getNXDNIdLookupTime();
m_nxdnlookup = new CNXDNLookup(lookupFile, reloadTime);
m_nxdnlookup->read();
if (m_dmrpc)
m_dmrflco = FLCO_USER_USER;
else
m_dmrflco = FLCO_GROUP;
CTimer networkWatchdog(100U, 0U, 1500U);
CTimer pollTimer(1000U, 5U);
std::string name = m_conf.getDescription();
CStopWatch stopWatch;
CStopWatch nxdnWatch;
CStopWatch dmrWatch;
stopWatch.start();
nxdnWatch.start();
dmrWatch.start();
pollTimer.start();
unsigned char nxdn_cnt = 0;
unsigned char dmr_cnt = 0;
// Link to reflector at startup (not NXDNGateway operation)
if (m_nxdnTG != NXDNGW_DSTID_DEF) {
m_nxdnNetwork->writePoll(m_nxdnTG);
m_nxdnNetwork->writePoll(m_nxdnTG);
m_nxdnNetwork->writePoll(m_nxdnTG);
}
LogMessage("Starting NXDN2DMR-%s", VERSION);
for (; end == 0;) {
unsigned char buffer[2000U];
CDMRData tx_dmrdata;
unsigned int ms = stopWatch.elapsed();
if (m_dmrNetwork->isConnected() && !m_xlxmodule.empty() && !m_xlxConnected) {
writeXLXLink(m_defsrcid, m_dstid, m_dmrNetwork);
LogMessage("XLX, Linking to reflector XLX%03u, module %s", m_xlxrefl, m_xlxmodule.c_str());
m_xlxConnected = true;
}
unsigned int len = 0;
while ((len = m_nxdnNetwork->read(buffer)) > 0U) {
if (::memcmp(buffer, "NXDND", 5U) == 0U && len == 43U) {
CNXDNLICH lich;
m_nxdnSrc = (buffer[5U] << 8) | buffer[6U];
m_nxdnDst = (buffer[7U] << 8) | buffer[8U];
bool end = (buffer[9U] & 0x08) == 0x08;
bool grp = (buffer[9U] & 0x01) == 0x01;
lich.setRaw(buffer[10U]);
unsigned char usc = lich.getFCT();
unsigned char opt = lich.getOption();
if (usc == NXDN_LICH_USC_SACCH_NS) {
if (end) {
LogMessage("NXDN received end of voice transmission, %.1f seconds", float(m_nxdnFrames) / 12.5F);
m_conv.putNXDNEOT();
m_nxdnFrames = 0U;
m_nxdninfo = false;
} else {
std::string netSrc = m_nxdnlookup->findCS(m_nxdnSrc);
std::string netDst = m_nxdnlookup->findCS(m_nxdnDst);
LogMessage("Received NXDN header from %s to %s%s", netSrc.c_str(), grp ? "TG " : "", netDst.c_str());
m_dmrNetwork->reset(2U); // OE1KBC fix
m_conv.putNXDNHeader();
m_nxdnFrames = 0U;
m_nxdninfo = true;
}
} else {
if (opt == NXDN_LICH_STEAL_NONE) {
if (!m_nxdninfo) {
std::string netSrc = m_nxdnlookup->findCS(m_nxdnSrc);
std::string netDst = m_nxdnlookup->findCS(m_nxdnDst);
LogMessage("Received NXDN late entry from %s to %s%s", netSrc.c_str(), grp ? "TG " : "", netDst.c_str());
m_dmrNetwork->reset(2U); // OE1KBC fix
m_conv.putNXDNHeader();
m_nxdninfo = true;
}
m_conv.putNXDN(buffer + 10U);
m_nxdnFrames++;
}
}
}
else if (::memcmp(buffer, "NXDNP", 5U) == 0 && len == 17U && m_nxdnTG == NXDNGW_DSTID_DEF) {
// Return the poll
m_nxdnNetwork->write(buffer, len);
}
}
if (dmrWatch.elapsed() > DMR_FRAME_PER) {
unsigned int dmrFrameType = m_conv.getDMR(m_dmrFrame);
if(dmrFrameType == TAG_HEADER) {
CDMRData rx_dmrdata;
dmr_cnt = 0U;
m_dmrSrc = findDMRID(m_nxdnSrc);
rx_dmrdata.setSlotNo(2U);
rx_dmrdata.setSrcId(m_dmrSrc);
rx_dmrdata.setDstId(m_dstid);
rx_dmrdata.setFLCO(m_dmrflco);
rx_dmrdata.setN(0U);
rx_dmrdata.setSeqNo(0U);
rx_dmrdata.setBER(0U);
rx_dmrdata.setRSSI(0U);
rx_dmrdata.setDataType(DT_VOICE_LC_HEADER);
// Add sync
CSync::addDMRDataSync(m_dmrFrame, 0);
// Add SlotType
CDMRSlotType slotType;
slotType.setColorCode(m_colorcode);
slotType.setDataType(DT_VOICE_LC_HEADER);
slotType.getData(m_dmrFrame);
// Full LC
CDMRLC dmrLC = CDMRLC(m_dmrflco, m_dmrSrc, m_dstid);
CDMRFullLC fullLC;
fullLC.encode(dmrLC, m_dmrFrame, DT_VOICE_LC_HEADER);
m_EmbeddedLC.setLC(dmrLC);
rx_dmrdata.setData(m_dmrFrame);
//CUtils::dump(1U, "DMR data:", m_dmrFrame, 33U);
for (unsigned int i = 0U; i < 3U; i++) {
rx_dmrdata.setSeqNo(dmr_cnt);
m_dmrNetwork->write(rx_dmrdata);
dmr_cnt++;
}
dmrWatch.start();
}
else if(dmrFrameType == TAG_EOT) {
CDMRData rx_dmrdata;
unsigned int n_dmr = (dmr_cnt - 3U) % 6U;
unsigned int fill = (6U - n_dmr);
if (n_dmr) {
for (unsigned int i = 0U; i < fill; i++) {
CDMREMB emb;
CDMRData rx_dmrdata;
rx_dmrdata.setSlotNo(2U);
rx_dmrdata.setSrcId(m_dmrSrc);
rx_dmrdata.setDstId(m_dstid);
rx_dmrdata.setFLCO(m_dmrflco);
rx_dmrdata.setN(n_dmr);
rx_dmrdata.setSeqNo(dmr_cnt);
rx_dmrdata.setBER(0U);
rx_dmrdata.setRSSI(0U);
rx_dmrdata.setDataType(DT_VOICE);
::memcpy(m_dmrFrame, DMR_SILENCE_DATA, DMR_FRAME_LENGTH_BYTES);
// Generate the Embedded LC
unsigned char lcss = m_EmbeddedLC.getData(m_dmrFrame, n_dmr);
// Generate the EMB
emb.setColorCode(m_colorcode);
emb.setLCSS(lcss);
emb.getData(m_dmrFrame);
rx_dmrdata.setData(m_dmrFrame);
//CUtils::dump(1U, "DMR data:", m_dmrFrame, 33U);
m_dmrNetwork->write(rx_dmrdata);
n_dmr++;
dmr_cnt++;
}
}
rx_dmrdata.setSlotNo(2U);
rx_dmrdata.setSrcId(m_dmrSrc);
rx_dmrdata.setDstId(m_dstid);
rx_dmrdata.setFLCO(m_dmrflco);
rx_dmrdata.setN(n_dmr);
rx_dmrdata.setSeqNo(dmr_cnt);
rx_dmrdata.setBER(0U);
rx_dmrdata.setRSSI(0U);
rx_dmrdata.setDataType(DT_TERMINATOR_WITH_LC);
// Add sync
CSync::addDMRDataSync(m_dmrFrame, 0);
// Add SlotType
CDMRSlotType slotType;
slotType.setColorCode(m_colorcode);
slotType.setDataType(DT_TERMINATOR_WITH_LC);
slotType.getData(m_dmrFrame);
// Full LC
CDMRLC dmrLC = CDMRLC(m_dmrflco, m_dmrSrc, m_dstid);
CDMRFullLC fullLC;
fullLC.encode(dmrLC, m_dmrFrame, DT_TERMINATOR_WITH_LC);
rx_dmrdata.setData(m_dmrFrame);
//CUtils::dump(1U, "DMR data:", m_dmrFrame, 33U);
m_dmrNetwork->write(rx_dmrdata);
dmrWatch.start();
}
else if(dmrFrameType == TAG_DATA) {
CDMREMB emb;
CDMRData rx_dmrdata;
unsigned int n_dmr = (dmr_cnt - 3U) % 6U;
rx_dmrdata.setSlotNo(2U);
rx_dmrdata.setSrcId(m_dmrSrc);
rx_dmrdata.setDstId(m_dstid);
rx_dmrdata.setFLCO(m_dmrflco);
rx_dmrdata.setN(n_dmr);
rx_dmrdata.setSeqNo(dmr_cnt);
rx_dmrdata.setBER(0U);
rx_dmrdata.setRSSI(0U);
if (!n_dmr) {
rx_dmrdata.setDataType(DT_VOICE_SYNC);
// Add sync
CSync::addDMRAudioSync(m_dmrFrame, 0U);
// Prepare Full LC data
CDMRLC dmrLC = CDMRLC(m_dmrflco, m_dmrSrc, m_dstid);
// Configure the Embedded LC
m_EmbeddedLC.setLC(dmrLC);
}
else {
rx_dmrdata.setDataType(DT_VOICE);
// Generate the Embedded LC
unsigned char lcss = m_EmbeddedLC.getData(m_dmrFrame, n_dmr);
// Generate the EMB
emb.setColorCode(m_colorcode);
emb.setLCSS(lcss);
emb.getData(m_dmrFrame);
}
rx_dmrdata.setData(m_dmrFrame);
//CUtils::dump(1U, "DMR data:", m_dmrFrame, 33U);
m_dmrNetwork->write(rx_dmrdata);
dmr_cnt++;
dmrWatch.start();
}
}
while (m_dmrNetwork->read(tx_dmrdata) > 0U) {
m_dmrSrc = tx_dmrdata.getSrcId();
m_dmrDst = tx_dmrdata.getDstId();
FLCO netflco = tx_dmrdata.getFLCO();
unsigned char DataType = tx_dmrdata.getDataType();
if (!tx_dmrdata.isMissing()) {
networkWatchdog.start();
if(DataType == DT_TERMINATOR_WITH_LC) {
if (m_dmrFrames == 0U) {
m_dmrNetwork->reset(2U);
networkWatchdog.stop();
m_dmrinfo = false;
m_firstSync = false;
break;
}
LogMessage("DMR received end of voice transmission, %.1f seconds", float(m_dmrFrames) / 16.667F);
m_conv.putDMREOT();
m_dmrNetwork->reset(2U);
networkWatchdog.stop();
m_dmrFrames = 0U;
m_dmrinfo = false;
m_firstSync = false;
}
if((DataType == DT_VOICE_LC_HEADER) && (DataType != m_dmrLastDT)) {
std::string netSrc = m_dmrlookup->findCS(m_dmrSrc);
std::string netDst = (netflco == FLCO_GROUP ? "TG " : "") + m_dmrlookup->findCS(m_dmrDst);
m_conv.putDMRHeader();
LogMessage("DMR header received from %s to %s", netSrc.c_str(), netDst.c_str());
m_dmrinfo = true;
m_dmrFrames = 0U;
m_firstSync = false;
}
if(DataType == DT_VOICE_SYNC)
m_firstSync = true;
if((DataType == DT_VOICE_SYNC || DataType == DT_VOICE) && m_firstSync) {
unsigned char dmr_frame[50];
tx_dmrdata.getData(dmr_frame);
if (!m_dmrinfo) {
std::string netSrc = m_dmrlookup->findCS(m_dmrSrc);
std::string netDst = (netflco == FLCO_GROUP ? "TG " : "") + m_dmrlookup->findCS(m_dmrDst);
m_conv.putDMRHeader();
LogMessage("DMR late entry from %s to %s", netSrc.c_str(), netDst.c_str());
m_dmrinfo = true;
}
m_conv.putDMR(dmr_frame); // Add DMR frame for NXDN conversion
m_dmrFrames++;
}
}
else {
if(DataType == DT_VOICE_SYNC || DataType == DT_VOICE) {
unsigned char dmr_frame[50];
tx_dmrdata.getData(dmr_frame);
m_conv.putDMR(dmr_frame); // Add DMR frame for NXDN conversion
m_dmrFrames++;
}
networkWatchdog.clock(ms);
if (networkWatchdog.hasExpired()) {
LogDebug("Network watchdog has expired, %.1f seconds", float(m_dmrFrames) / 16.667F);
m_dmrNetwork->reset(2U);
networkWatchdog.stop();
m_dmrFrames = 0U;
m_dmrinfo = false;
}
}
m_dmrLastDT = DataType;
}
if (nxdnWatch.elapsed() > NXDN_FRAME_PER) {
unsigned int nxdnFrameType = m_conv.getNXDN(m_nxdnFrame);
if(nxdnFrameType == TAG_HEADER) {
nxdn_cnt = 0U;
m_nxdnSrc = findNXDNID(m_dmrSrc);
CNXDNLICH lich;
lich.setRFCT(NXDN_LICH_RFCT_RDCH);
lich.setFCT(NXDN_LICH_USC_SACCH_NS);
lich.setOption(NXDN_LICH_STEAL_FACCH);
lich.setDirection(NXDN_LICH_DIRECTION_INBOUND);
m_nxdnFrame[0U] = lich.getRaw();
CNXDNSACCH sacch;
sacch.setRAN(0x01);
sacch.setStructure(NXDN_SR_SINGLE);
sacch.setData(SACCH_IDLE);
sacch.getRaw(m_nxdnFrame + 1U);
unsigned char layer3data[25U];
CNXDNLayer3 layer3;
layer3.setMessageType(NXDN_MESSAGE_TYPE_VCALL);
layer3.setSourceUnitId(m_nxdnSrc & 0xFFFF);
layer3.setDestinationGroupId(m_nxdnTG & 0xFFFF);
layer3.setGroup(true);
layer3.setDataBlocks(0U);
layer3.getData(layer3data);
::memcpy(m_nxdnFrame + 5U, layer3data, 14U);
::memcpy(m_nxdnFrame + 5U + 14U, layer3data, 14U);
m_nxdnNetwork->write(m_nxdnFrame, m_nxdnSrc, m_nxdnTG, true);
nxdnWatch.start();
}
else if (nxdnFrameType == TAG_EOT) {
CNXDNLICH lich;
lich.setRFCT(NXDN_LICH_RFCT_RDCH);
lich.setFCT(NXDN_LICH_USC_SACCH_NS);
lich.setOption(NXDN_LICH_STEAL_FACCH);
lich.setDirection(NXDN_LICH_DIRECTION_INBOUND);
m_nxdnFrame[0U] = lich.getRaw();
CNXDNSACCH sacch;
sacch.setRAN(0x01);
sacch.setStructure(NXDN_SR_SINGLE);
sacch.setData(SACCH_IDLE);
sacch.getRaw(m_nxdnFrame + 1U);
unsigned char layer3data[25U];
CNXDNLayer3 layer3;
layer3.setMessageType(NXDN_MESSAGE_TYPE_TX_REL);
layer3.setSourceUnitId(m_nxdnSrc & 0xFFFF);
layer3.setDestinationGroupId(m_nxdnTG & 0xFFFF);
layer3.setGroup(true);
layer3.setDataBlocks(0U);
layer3.getData(layer3data);
::memcpy(m_nxdnFrame + 5U, layer3data, 14U);
::memcpy(m_nxdnFrame + 5U + 14U, layer3data, 14U);
m_nxdnNetwork->write(m_nxdnFrame, m_nxdnSrc, m_nxdnTG, true);
nxdn_cnt = 0U;
}
else if (nxdnFrameType == TAG_DATA) {
CNXDNLICH lich;
lich.setRFCT(NXDN_LICH_RFCT_RDCH);
lich.setFCT(NXDN_LICH_USC_SACCH_SS);
lich.setOption(NXDN_LICH_STEAL_NONE);
lich.setDirection(NXDN_LICH_DIRECTION_INBOUND);
m_nxdnFrame[0U] = lich.getRaw();
CNXDNSACCH sacch;
CNXDNLayer3 layer3;
unsigned char message[3U];
layer3.setMessageType(NXDN_MESSAGE_TYPE_VCALL);
layer3.setSourceUnitId(m_nxdnSrc & 0xFFFF);
layer3.setDestinationGroupId(m_nxdnTG & 0xFFFF);
layer3.setGroup(true);
layer3.setDataBlocks(0U);
switch (nxdn_cnt % 4) {
case 0:
sacch.setStructure(NXDN_SR_1_4);
layer3.encode(message, 18U, 0U);
sacch.setData(message);
break;
case 1:
sacch.setStructure(NXDN_SR_2_4);
layer3.encode(message, 18U, 18U);
sacch.setData(message);
break;
case 2:
sacch.setStructure(NXDN_SR_3_4);
layer3.encode(message, 18U, 36U);
sacch.setData(message);
break;
case 3:
sacch.setStructure(NXDN_SR_4_4);
layer3.encode(message, 18U, 54U);
sacch.setData(message);
break;
}
sacch.setRAN(0x01);
sacch.getRaw(m_nxdnFrame + 1U);
// Send data to MMDVMHost
m_nxdnNetwork->write(m_nxdnFrame, m_nxdnSrc, m_nxdnTG, true);
nxdn_cnt++;
nxdnWatch.start();
}
}
stopWatch.start();
m_dmrNetwork->clock(ms);
if (m_xlxReflectors != NULL)
m_xlxReflectors->clock(ms);
pollTimer.clock(ms);
if (pollTimer.isRunning() && pollTimer.hasExpired() && m_nxdnTG != NXDNGW_DSTID_DEF) {
m_nxdnNetwork->writePoll(m_nxdnTG);
pollTimer.start();
}
if (ms < 5U)
CThread::sleep(5U);
}
// Unlink reflector at exit (not NXDNGateway operation)
if (m_nxdnTG != NXDNGW_DSTID_DEF) {
m_nxdnNetwork->writeUnlink(m_nxdnTG);
m_nxdnNetwork->writeUnlink(m_nxdnTG);
m_nxdnNetwork->writeUnlink(m_nxdnTG);
}
m_nxdnNetwork->close();
m_dmrNetwork->close();
delete m_dmrNetwork;
delete m_nxdnNetwork;
if (m_xlxReflectors != NULL)
delete m_xlxReflectors;
::LogFinalise();
return 0;
}
unsigned int CNXDN2DMR::findNXDNID(unsigned int dmrid)
{
std::string dmrCS = m_dmrlookup->findCS(dmrid);
unsigned int nxdnID = m_nxdnlookup->findID(dmrCS);
if (nxdnID == 0)
nxdnID = truncID(dmrid);
else
LogMessage("NXDN ID of %s: %u", dmrCS.c_str(), nxdnID);
return nxdnID;
}
unsigned int CNXDN2DMR::findDMRID(unsigned int nxdnid)
{
std::string nxdnCS = m_nxdnlookup->findCS(nxdnid);
unsigned int dmrID = m_dmrlookup->findID(nxdnCS);
if (dmrID == 0)
dmrID = m_defsrcid;
else
LogMessage("DMR ID of %s: %u", nxdnCS.c_str(), dmrID);
return dmrID;
}
unsigned int CNXDN2DMR::truncID(unsigned int id)
{
char temp[20];
snprintf(temp, 8, "%07d", id);
unsigned int newid = atoi(temp + 2);
if (newid > 65519 || newid == 0)
newid = m_defaultID;
return newid;
}
bool CNXDN2DMR::createDMRNetwork()
{
std::string address = m_conf.getDMRNetworkAddress();
m_xlxmodule = m_conf.getDMRXLXModule();
m_xlxrefl = m_conf.getDMRXLXReflector();
unsigned int port = m_conf.getDMRNetworkPort();
unsigned int local = m_conf.getDMRNetworkLocal();
std::string password = m_conf.getDMRNetworkPassword();
bool debug = m_conf.getDMRNetworkDebug();
unsigned int jitter = m_conf.getDMRNetworkJitter();
bool slot1 = false;
bool slot2 = true;
bool duplex = false;
HW_TYPE hwType = HWT_MMDVM;
m_srcHS = m_conf.getDMRId();
m_colorcode = 1U;
if (m_xlxmodule.empty()) {
m_dstid = m_conf.getDMRDstId();
m_dmrpc = m_conf.getDMRPC();
}
else {
const char *xlxmod = m_xlxmodule.c_str();
m_dstid = 4000 + xlxmod[0] - 64;
m_dmrpc = 0;
CReflector* reflector = m_xlxReflectors->find(m_xlxrefl);
if (reflector == NULL)
return false;
address = reflector->m_address;
}
if (m_srcHS > 99999999U)
m_defsrcid = m_srcHS / 100U;
else if (m_srcHS > 9999999U)
m_defsrcid = m_srcHS / 10U;
else
m_defsrcid = m_srcHS;
LogMessage("DMR Network Parameters");
LogMessage(" ID: %u", m_srcHS);
LogMessage(" Default SrcID: %u", m_defsrcid);
if (!m_xlxmodule.empty()) {
LogMessage(" XLX Reflector: %d", m_xlxrefl);
LogMessage(" XLX Module: %s (%d)", m_xlxmodule.c_str(), m_dstid);
}
else {
LogMessage(" Startup DstID: %s%u", m_dmrpc ? "" : "TG ", m_dstid);
LogMessage(" Address: %s", address.c_str());
}
LogMessage(" Port: %u", port);
if (local > 0U)
LogMessage(" Local: %u", local);
else
LogMessage(" Local: random");
LogMessage(" Jitter: %ums", jitter);
m_dmrNetwork = new CDMRNetwork(address, port, local, m_srcHS, password, duplex, VERSION, debug, slot1, slot2, hwType, jitter);
std::string options = m_conf.getDMRNetworkOptions();
if (!options.empty()) {
LogMessage(" Options: %s", options.c_str());
m_dmrNetwork->setOptions(options);
}
unsigned int rxFrequency = m_conf.getRxFrequency();
unsigned int txFrequency = m_conf.getTxFrequency();
unsigned int power = m_conf.getPower();
float latitude = m_conf.getLatitude();
float longitude = m_conf.getLongitude();
int height = m_conf.getHeight();
std::string location = m_conf.getLocation();
std::string description = m_conf.getDescription();
std::string url = m_conf.getURL();
LogMessage("Info Parameters");
LogMessage(" Callsign: %s", m_callsign.c_str());
LogMessage(" RX Frequency: %uHz", rxFrequency);
LogMessage(" TX Frequency: %uHz", txFrequency);
LogMessage(" Power: %uW", power);
LogMessage(" Latitude: %fdeg N", latitude);
LogMessage(" Longitude: %fdeg E", longitude);
LogMessage(" Height: %um", height);
LogMessage(" Location: \"%s\"", location.c_str());
LogMessage(" Description: \"%s\"", description.c_str());
LogMessage(" URL: \"%s\"", url.c_str());
m_dmrNetwork->setConfig(m_callsign, rxFrequency, txFrequency, power, m_colorcode, latitude, longitude, height, location, description, url);
bool ret = m_dmrNetwork->open();
if (!ret) {
delete m_dmrNetwork;
m_dmrNetwork = NULL;
return false;
}
m_dmrNetwork->enable(true);
return true;
}
void CNXDN2DMR::writeXLXLink(unsigned int srcId, unsigned int dstId, CDMRNetwork* network)
{
assert(network != NULL);
unsigned int streamId = ::rand() + 1U;
CDMRData data;
data.setSlotNo(XLX_SLOT);
data.setFLCO(FLCO_USER_USER);
data.setSrcId(srcId);
data.setDstId(dstId);
data.setDataType(DT_VOICE_LC_HEADER);
data.setN(0U);
data.setStreamId(streamId);
unsigned char buffer[DMR_FRAME_LENGTH_BYTES];
CDMRLC lc;
lc.setSrcId(srcId);
lc.setDstId(dstId);
lc.setFLCO(FLCO_USER_USER);
CDMRFullLC fullLC;
fullLC.encode(lc, buffer, DT_VOICE_LC_HEADER);
CDMRSlotType slotType;
slotType.setColorCode(XLX_COLOR_CODE);
slotType.setDataType(DT_VOICE_LC_HEADER);
slotType.getData(buffer);
CSync::addDMRDataSync(buffer, true);
data.setData(buffer);
for (unsigned int i = 0U; i < 3U; i++) {
data.setSeqNo(i);
network->write(data);
}
data.setDataType(DT_TERMINATOR_WITH_LC);
fullLC.encode(lc, buffer, DT_TERMINATOR_WITH_LC);
slotType.setDataType(DT_TERMINATOR_WITH_LC);
slotType.getData(buffer);
data.setData(buffer);
for (unsigned int i = 0U; i < 2U; i++) {
data.setSeqNo(i + 3U);
network->write(data);
}
}
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