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MMDVM_CM/DMR2YSF/DMR2YSF.cpp
Andy CA6JAU 0dd5fee20f Add default values for some variables
2018-08-05 01:40:51 -04:00

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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 "DMR2YSF.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
// DT1 and DT2, suggested by Manuel EA7EE
const unsigned char dt1_temp[] = {0x31, 0x22, 0x62, 0x5F, 0x29, 0x00, 0x00, 0x00, 0x00, 0x00};
const unsigned char dt2_temp[] = {0x00, 0x00, 0x00, 0x00, 0x6C, 0x20, 0x1C, 0x20, 0x03, 0x08};
const unsigned char CONN_RESP[] = {0x5DU, 0x41U, 0x5FU, 0x26U};
#define DMR_FRAME_PER 55U
#define YSF_FRAME_PER 90U
#if defined(_WIN32) || defined(_WIN64)
const char* DEFAULT_INI_FILE = "DMR2YSF.ini";
#else
const char* DEFAULT_INI_FILE = "/etc/DMR2YSF.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>
static bool m_killed = false;
#if !defined(_WIN32) && !defined(_WIN64)
void sig_handler(int signo)
{
if (signo == SIGTERM) {
m_killed = true;
::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, "DMR2YSF version %s\n", VERSION);
return 0;
} else if (arg.substr(0, 1) == "-") {
::fprintf(stderr, "Usage: DMR2YSF [-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
CDMR2YSF* gateway = new CDMR2YSF(std::string(iniFile));
int ret = gateway->run();
delete gateway;
return ret;
}
CDMR2YSF::CDMR2YSF(const std::string& configFile) :
m_callsign(),
m_conf(configFile),
m_dmrNetwork(NULL),
m_ysfNetwork(NULL),
m_conv(),
m_colorcode(1U),
m_srcid(1U),
m_defsrcid(1U),
m_dstid(1U),
m_dmrpc(false),
m_netSrc(),
m_netDst(),
m_ysfSrc(),
m_dmrLastDT(0U),
m_ysfFrame(NULL),
m_dmrFrame(NULL),
m_dmrFrames(0U),
m_ysfFrames(0U),
m_EmbeddedLC(),
m_dmrflco(FLCO_GROUP),
m_dmrinfo(false),
m_config(NULL),
m_configLen(0U),
m_command(NULL),
m_tgUnlink(4000U),
m_currTGList(),
m_lastTG(0U)
{
m_ysfFrame = new unsigned char[200U];
m_dmrFrame = new unsigned char[50U];
m_config = new unsigned char[400U];
m_command = new unsigned char[300U];
::memset(m_ysfFrame, 0U, 200U);
::memset(m_dmrFrame, 0U, 50U);
}
CDMR2YSF::~CDMR2YSF()
{
delete[] m_ysfFrame;
delete[] m_dmrFrame;
delete[] m_config;
delete[] m_command;
}
int CDMR2YSF::run()
{
bool ret = m_conf.read();
if (!ret) {
::fprintf(stderr, "DMR2YSF: 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, "DMR2YSF: 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
m_callsign = m_conf.getCallsign();
m_defsrcid = m_conf.getDMRId();
m_dstid = m_conf.getDMRDefaultDstTG();
m_tgUnlink = m_conf.getDMRNetworkTGUnlink();
std::string tgFile = m_conf.getDMRTGListFile();
LogInfo(HEADER1);
LogInfo(HEADER2);
LogInfo(HEADER3);
LogInfo(HEADER4);
LogInfo("General Parameters");
LogInfo(" Default Dst TG: %u", m_dstid);
LogInfo(" Unlink TG: %u", m_tgUnlink);
LogInfo(" TG File: %s", tgFile.c_str());
readTGList(tgFile);
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_ysfNetwork = new CYSFNetwork(localAddress, localPort, m_callsign, false);
m_ysfNetwork->setDestination(dstAddress, dstPort);
ret = m_ysfNetwork->open();
if (!ret) {
::LogError("Cannot open the YSF network port");
::LogFinalise();
return 1;
}
ret = createMMDVM();
if (!ret)
return 1;
LogMessage("Waiting for MMDVM to connect.....");
while (!m_killed) {
m_configLen = m_dmrNetwork->getConfig(m_config);
if (m_configLen > 0U && m_dmrNetwork->getId() > 1000U)
break;
m_dmrNetwork->clock(10U);
CThread::sleep(10U);
}
if (m_killed) {
m_dmrNetwork->close();
delete m_dmrNetwork;
return 0;
}
LogMessage("MMDVM has connected");
std::string lookupFile = m_conf.getDMRIdLookupFile();
unsigned int reloadTime = m_conf.getDMRIdLookupTime();
m_lookup = new CDMRLookup(lookupFile, reloadTime);
m_lookup->read();
if (m_dmrpc)
m_dmrflco = FLCO_USER_USER;
else
m_dmrflco = FLCO_GROUP;
CTimer networkWatchdog(100U, 0U, 1500U);
CTimer pollTimer(1000U, 5U);
CStopWatch stopWatch;
CStopWatch ysfWatch;
CStopWatch dmrWatch;
stopWatch.start();
ysfWatch.start();
dmrWatch.start();
pollTimer.start();
unsigned char ysf_cnt = 0;
unsigned char dmr_cnt = 0;
unsigned char gps_buffer[20U];
LogMessage("Starting DMR2YSF-%s", VERSION);
for (; m_killed == 0;) {
unsigned char buffer[2000U];
CDMRData tx_dmrdata;
unsigned int ms = stopWatch.elapsed();
while (m_ysfNetwork->read(buffer) > 0U) {
CYSFFICH fich;
bool valid = fich.decode(buffer + 35U);
if (valid) {
unsigned char fi = fich.getFI();
unsigned char dt = fich.getDT();
unsigned char fn = fich.getFN();
unsigned char ft = fich.getFT();
if (::memcmp(buffer, "YSFD", 4U) == 0U) {
processWiresX(buffer + 35U, fi, dt, fn, ft);
if (dt == YSF_DT_VD_MODE2) {
CYSFPayload ysfPayload;
if (fi == YSF_FI_HEADER) {
if (ysfPayload.processHeaderData(buffer + 35U)) {
std::string ysfSrc = ysfPayload.getSource();
std::string ysfDst = ysfPayload.getDest();
LogMessage("Received YSF Header: Src: %s Dst: %s", ysfSrc.c_str(), ysfDst.c_str());
m_srcid = findYSFID(ysfSrc, true);
m_conv.putYSFHeader();
m_ysfFrames = 0U;
}
} else if (fi == YSF_FI_TERMINATOR) {
LogMessage("YSF received end of voice transmission, %.1f seconds", float(m_ysfFrames) / 10.0F);
m_conv.putYSFEOT();
m_ysfFrames = 0U;
} else if (fi == YSF_FI_COMMUNICATIONS) {
m_conv.putYSF(buffer + 35U);
m_ysfFrames++;
}
}
}
}
}
if (dmrWatch.elapsed() > DMR_FRAME_PER) {
unsigned int dmrFrameType = m_conv.getDMR(m_dmrFrame);
if(dmrFrameType == TAG_HEADER) {
CDMRData rx_dmrdata;
dmr_cnt = 0U;
rx_dmrdata.setSlotNo(2U);
rx_dmrdata.setSrcId(m_srcid);
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_srcid, 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_srcid);
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_srcid);
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_srcid, 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_srcid);
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_srcid, 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) {
unsigned int SrcId = tx_dmrdata.getSrcId();
unsigned int DstId = 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 && m_dmrFrames > 0U) {
LogMessage("DMR received end of voice transmission, %.1f seconds", float(m_dmrFrames) / 16.667F);
networkWatchdog.stop();
m_dmrFrames = 0U;
m_dmrinfo = false;
if (m_dstid != m_lastTG)
break;
m_conv.putDMREOT();
}
if((DataType == DT_VOICE_LC_HEADER) && (DataType != m_dmrLastDT)) {
// DT1 & DT2 without GPS info
::memcpy(gps_buffer, dt1_temp, 10U);
::memcpy(gps_buffer + 10U, dt2_temp, 10U);
m_netSrc = m_lookup->findCS(SrcId);
m_dstid = DstId;
m_netDst = (netflco == FLCO_GROUP ? "TG " : "") + m_lookup->findCS(DstId);
connectYSF(m_dstid);
LogMessage("DMR audio received from %s to %s", m_netSrc.c_str(), m_netDst.c_str());
m_dmrinfo = true;
m_dmrFrames = 0U;
m_netSrc.resize(YSF_CALLSIGN_LENGTH, ' ');
m_netDst.resize(YSF_CALLSIGN_LENGTH, ' ');
if (m_dstid != m_lastTG) {
m_dmrLastDT = DataType;
break;
}
m_conv.putDMRHeader();
}
if(DataType == DT_VOICE_SYNC || DataType == DT_VOICE) {
unsigned char dmr_frame[50];
tx_dmrdata.getData(dmr_frame);
if (!m_dmrinfo) {
m_netSrc = m_lookup->findCS(SrcId);
m_dstid = DstId;
m_netDst = (netflco == FLCO_GROUP ? "TG " : "") + m_lookup->findCS(DstId);
LogMessage("DMR audio received from %s to %s", m_netSrc.c_str(), m_netDst.c_str());
m_netSrc.resize(YSF_CALLSIGN_LENGTH, ' ');
m_netDst.resize(YSF_CALLSIGN_LENGTH, ' ');
connectYSF(m_dstid);
m_dmrinfo = true;
}
m_dmrFrames++;
if (m_dstid != m_lastTG)
break;
m_conv.putDMR(dmr_frame); // Add DMR frame for YSF conversion
}
}
else {
if(DataType == DT_VOICE_SYNC || DataType == DT_VOICE) {
unsigned char dmr_frame[50];
tx_dmrdata.getData(dmr_frame);
m_dmrFrames++;
if (m_dstid != m_lastTG)
break;
m_conv.putDMR(dmr_frame); // Add DMR frame for YSF conversion
}
networkWatchdog.clock(ms);
if (networkWatchdog.hasExpired()) {
LogDebug("Network watchdog has expired, %.1f seconds", float(m_dmrFrames) / 16.667F);
networkWatchdog.stop();
m_dmrFrames = 0U;
m_dmrinfo = false;
}
}
m_dmrLastDT = DataType;
}
if (ysfWatch.elapsed() > YSF_FRAME_PER) {
unsigned int ysfFrameType = m_conv.getYSF(m_ysfFrame + 35U);
if(ysfFrameType == TAG_HEADER) {
ysf_cnt = 0U;
::memcpy(m_ysfFrame + 0U, "YSFD", 4U);
::memcpy(m_ysfFrame + 4U, m_ysfNetwork->getCallsign().c_str(), YSF_CALLSIGN_LENGTH);
::memcpy(m_ysfFrame + 14U, m_netSrc.c_str(), YSF_CALLSIGN_LENGTH);
::memcpy(m_ysfFrame + 24U, "ALL ", YSF_CALLSIGN_LENGTH);
m_ysfFrame[34U] = 0U; // Net frame counter
CSync::addYSFSync(m_ysfFrame + 35U);
// Set the FICH
CYSFFICH fich;
fich.setFI(YSF_FI_HEADER);
fich.setCS(2U);
fich.setFN(0U);
fich.setFT(7U);
fich.setDev(0U);
fich.setMR(2U);
fich.setDT(YSF_DT_VD_MODE2);
fich.setSQL(0U);
fich.setSQ(0U);
fich.encode(m_ysfFrame + 35U);
unsigned char csd1[20U], csd2[20U];
memset(csd1, '*', YSF_CALLSIGN_LENGTH);
memcpy(csd1 + YSF_CALLSIGN_LENGTH, m_netSrc.c_str(), YSF_CALLSIGN_LENGTH);
memset(csd2, ' ', YSF_CALLSIGN_LENGTH + YSF_CALLSIGN_LENGTH);
CYSFPayload payload;
payload.writeHeader(m_ysfFrame + 35U, csd1, csd2);
m_ysfNetwork->write(m_ysfFrame);
ysf_cnt++;
ysfWatch.start();
}
else if (ysfFrameType == TAG_EOT) {
::memcpy(m_ysfFrame + 0U, "YSFD", 4U);
::memcpy(m_ysfFrame + 4U, m_ysfNetwork->getCallsign().c_str(), YSF_CALLSIGN_LENGTH);
::memcpy(m_ysfFrame + 14U, m_netSrc.c_str(), YSF_CALLSIGN_LENGTH);
::memcpy(m_ysfFrame + 24U, "ALL ", YSF_CALLSIGN_LENGTH);
m_ysfFrame[34U] = ysf_cnt; // Net frame counter
CSync::addYSFSync(m_ysfFrame + 35U);
// Set the FICH
CYSFFICH fich;
fich.setFI(YSF_FI_TERMINATOR);
fich.setCS(2U);
fich.setFN(0U);
fich.setFT(7U);
fich.setDev(0U);
fich.setMR(2U);
fich.setDT(YSF_DT_VD_MODE2);
fich.setSQL(0U);
fich.setSQ(0U);
fich.encode(m_ysfFrame + 35U);
unsigned char csd1[20U], csd2[20U];
memset(csd1, '*', YSF_CALLSIGN_LENGTH);
memcpy(csd1 + YSF_CALLSIGN_LENGTH, m_netSrc.c_str(), YSF_CALLSIGN_LENGTH);
memset(csd2, ' ', YSF_CALLSIGN_LENGTH + YSF_CALLSIGN_LENGTH);
CYSFPayload payload;
payload.writeHeader(m_ysfFrame + 35U, csd1, csd2);
m_ysfNetwork->write(m_ysfFrame);
}
else if (ysfFrameType == TAG_DATA) {
CYSFFICH fich;
CYSFPayload ysfPayload;
unsigned int fn = (ysf_cnt - 1U) % 8U;
::memcpy(m_ysfFrame + 0U, "YSFD", 4U);
::memcpy(m_ysfFrame + 4U, m_ysfNetwork->getCallsign().c_str(), YSF_CALLSIGN_LENGTH);
::memcpy(m_ysfFrame + 14U, m_netSrc.c_str(), YSF_CALLSIGN_LENGTH);
::memcpy(m_ysfFrame + 24U, "ALL ", YSF_CALLSIGN_LENGTH);
// Add the YSF Sync
CSync::addYSFSync(m_ysfFrame + 35U);
switch (fn) {
case 0:
ysfPayload.writeVDMode2Data(m_ysfFrame + 35U, (const unsigned char*)"**********");
break;
case 1:
ysfPayload.writeVDMode2Data(m_ysfFrame + 35U, (const unsigned char*)m_netSrc.c_str());
break;
case 2:
ysfPayload.writeVDMode2Data(m_ysfFrame + 35U, (const unsigned char*)m_netDst.c_str());
break;
case 6:
ysfPayload.writeVDMode2Data(m_ysfFrame + 35U, gps_buffer);
break;
case 7:
ysfPayload.writeVDMode2Data(m_ysfFrame + 35U, gps_buffer+10U);
break;
default:
ysfPayload.writeVDMode2Data(m_ysfFrame + 35U, (const unsigned char*)" ");
}
// Set the FICH
fich.setFI(YSF_FI_COMMUNICATIONS);
fich.setCS(2U);
fich.setFN(fn);
fich.setFT(7U);
fich.setDev(0U);
fich.setMR(YSF_MR_BUSY);
fich.setDT(YSF_DT_VD_MODE2);
fich.setSQL(0U);
fich.setSQ(0U);
fich.encode(m_ysfFrame + 35U);
// Net frame counter
m_ysfFrame[34U] = (ysf_cnt & 0x7FU) << 1;
// Send data
m_ysfNetwork->write(m_ysfFrame);
ysf_cnt++;
ysfWatch.start();
}
}
stopWatch.start();
m_ysfNetwork->clock(ms);
m_dmrNetwork->clock(ms);
pollTimer.clock(ms);
if (pollTimer.isRunning() && pollTimer.hasExpired()) {
m_ysfNetwork->writePoll();
pollTimer.start();
}
if (ms < 5U)
CThread::sleep(5U);
}
m_ysfNetwork->close();
m_dmrNetwork->close();
delete m_dmrNetwork;
delete m_ysfNetwork;
::LogFinalise();
return 0;
}
void CDMR2YSF::readTGList(std::string filename)
{
// Load file with TG List
FILE* fp = ::fopen(filename.c_str(), "rt");
if (fp != NULL) {
char buffer[100U];
while (::fgets(buffer, 100U, fp) != NULL) {
if (buffer[0U] == '#')
continue;
char* p1 = ::strtok(buffer, ";\r\n");
char* p2 = ::strtok(NULL, ";\r\n");
if (p1 != NULL && p2 != NULL) {
CTGReg* tgreg = new CTGReg;
tgreg->m_tg = atoi(p1);
tgreg->m_ysf = atoi(p2);
m_currTGList.push_back(tgreg);
}
}
::fclose(fp);
}
}
unsigned int CDMR2YSF::findYSFID(std::string cs, bool showdst)
{
std::string cstrim;
bool dmrpc = false;
int first = cs.find_first_not_of(' ');
int mid1 = cs.find_last_of('-');
int mid2 = cs.find_last_of('/');
int last = cs.find_last_not_of(' ');
if (mid1 == -1 && mid2 == -1 && first == -1 && last == -1)
cstrim = "N0CALL";
else if (mid1 == -1 && mid2 == -1)
cstrim = cs.substr(first, (last - first + 1));
else if (mid1 > first)
cstrim = cs.substr(first, (mid1 - first));
else if (mid2 > first)
cstrim = cs.substr(first, (mid2 - first));
else
cstrim = "N0CALL";
unsigned int id = m_lookup->findID(cstrim);
if (m_dmrflco == FLCO_USER_USER)
dmrpc = true;
else if (m_dmrflco == FLCO_GROUP)
dmrpc = false;
if (id == 0) {
id = m_defsrcid;
if (showdst)
LogMessage("Not DMR ID found, using default ID: %u, DstID: %s%u", id, dmrpc ? "" : "TG ", m_dstid);
else
LogMessage("Not DMR ID found, using default ID: %u", id);
}
else {
if (showdst)
LogMessage("DMR ID of %s: %u, DstID: %s%u", cstrim.c_str(), id, dmrpc ? "" : "TG ", m_dstid);
else
LogMessage("DMR ID of %s: %u", cstrim.c_str(), id);
}
return id;
}
std::string CDMR2YSF::getSrcYSF(const unsigned char* buffer)
{
unsigned char temp[YSF_CALLSIGN_LENGTH + 1U];
::memcpy(temp, buffer + 14U, YSF_CALLSIGN_LENGTH);
temp[YSF_CALLSIGN_LENGTH] = 0U;
std::string trimmed = reinterpret_cast<char const*>(temp);
trimmed.erase(std::find_if(trimmed.rbegin(), trimmed.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), trimmed.end());
return trimmed;
}
void CDMR2YSF::connectYSF(unsigned int id)
{
if (id == m_lastTG)
return;
if (id == m_tgUnlink)
sendYSFDisc();
for (std::vector<CTGReg*>::iterator it = m_currTGList.begin(); it != m_currTGList.end(); ++it) {
if (id == (*it)->m_tg) {
sendYSFConn((*it)->m_ysf);
return;
}
}
LogMessage("DMR TG not found in TGList");
return;
}
void CDMR2YSF::sendYSFConn(unsigned int id)
{
unsigned char data[] = {0x00U, 0x5DU, 0x23U, 0x5FU, 0x24U, 0x20U, 0x20U, 0x20U, 0x20U,
0x20U, 0x20U, 0x20U, 0x20U, 0x20U, 0x20U, 0x03U, 0x00U, 0x00U,
0x00U, 0x00U};
if (id > 99999U)
return;
sprintf((char*) (data + 5U), "%05u", id);
data[16U] = CCRC::addCRC(data, 16U);
// Setup net header
::memcpy(m_ysfFrame + 0U, "YSFD", 4U);
::memcpy(m_ysfFrame + 4U, m_ysfNetwork->getCallsign().c_str(), YSF_CALLSIGN_LENGTH);
::memcpy(m_ysfFrame + 14U, m_netSrc.c_str(), YSF_CALLSIGN_LENGTH);
::memcpy(m_ysfFrame + 24U, "ALL ", YSF_CALLSIGN_LENGTH);
m_ysfFrame[34U] = 0U;
CSync::addYSFSync(m_ysfFrame + 35U);
// Set the FICH
CYSFFICH fich;
fich.setFI(YSF_FI_COMMUNICATIONS);
fich.setCS(2U);
fich.setFN(1U);
fich.setFT(1U);
fich.setDev(0U);
fich.setMR(2U);
fich.setDT(YSF_DT_DATA_FR_MODE);
fich.setSQL(0U);
fich.setSQ(0U);
fich.encode(m_ysfFrame + 35U);
CYSFPayload payload;
payload.writeDataFRModeData2(data, m_ysfFrame + 35U);
m_ysfNetwork->write(m_ysfFrame);
LogMessage("Sending YSF connect command to reflector ID: %u", id);
}
void CDMR2YSF::sendYSFDisc()
{
unsigned char data[] = {0x00U, 0x5DU, 0x2AU, 0x5FU, 0x24U, 0x20U, 0x20U, 0x20U, 0x20U,
0x20U, 0x20U, 0x20U, 0x20U, 0x20U, 0x20U, 0x03U, 0x4DU, 0x00U,
0x00U, 0x00U};
// Setup net header
::memcpy(m_ysfFrame + 0U, "YSFD", 4U);
::memcpy(m_ysfFrame + 4U, m_ysfNetwork->getCallsign().c_str(), YSF_CALLSIGN_LENGTH);
::memcpy(m_ysfFrame + 14U, m_netSrc.c_str(), YSF_CALLSIGN_LENGTH);
::memcpy(m_ysfFrame + 24U, "ALL ", YSF_CALLSIGN_LENGTH);
m_ysfFrame[34U] = 0U;
CSync::addYSFSync(m_ysfFrame + 35U);
// Set the FICH
CYSFFICH fich;
fich.setFI(YSF_FI_COMMUNICATIONS);
fich.setCS(2U);
fich.setFN(1U);
fich.setFT(1U);
fich.setDev(0U);
fich.setMR(2U);
fich.setDT(YSF_DT_DATA_FR_MODE);
fich.setSQL(0U);
fich.setSQ(0U);
fich.encode(m_ysfFrame + 35U);
CYSFPayload payload;
payload.writeDataFRModeData2(data, m_ysfFrame + 35U);
m_ysfNetwork->write(m_ysfFrame);
LogMessage("Sending YSF disconnect command");
}
void CDMR2YSF::processWiresX(const unsigned char* data, unsigned char fi, unsigned char dt, unsigned char fn, unsigned char ft)
{
assert(data != NULL);
if (dt != YSF_DT_DATA_FR_MODE)
return;
if (fi != YSF_FI_COMMUNICATIONS)
return;
CYSFPayload payload;
if (fn == 0U)
return;
if (fn == 1U) {
bool valid = payload.readDataFRModeData2(data, m_command + 0U);
if (!valid)
return;
} else {
bool valid = payload.readDataFRModeData1(data, m_command + (fn - 2U) * 40U + 20U);
if (!valid)
return;
valid = payload.readDataFRModeData2(data, m_command + (fn - 2U) * 40U + 40U);
if (!valid)
return;
}
if (fn == ft) {
bool valid = false;
// Find the end marker
for (unsigned int i = (fn - 1U) * 40U + 20U; i > 0U; i--) {
if (m_command[i] == 0x03U) {
unsigned char crc = CCRC::addCRC(m_command, i + 1U);
if (crc == m_command[i + 1U])
valid = true;
break;
}
}
if (!valid)
return;
if (::memcmp(m_command + 1U, CONN_RESP, 4U) == 0) {
m_lastTG = m_dstid;
LogMessage("Reflector connected OK");
return;
}
}
return;
}
bool CDMR2YSF::createMMDVM()
{
std::string rptAddress = m_conf.getDMRRptAddress();
unsigned int rptPort = m_conf.getDMRRptPort();
std::string localAddress = m_conf.getDMRLocalAddress();
unsigned int localPort = m_conf.getDMRLocalPort();
bool debug = m_conf.getDMRDebug();
LogInfo("MMDVM Network Parameters");
LogInfo(" Rpt Address: %s", rptAddress.c_str());
LogInfo(" Rpt Port: %u", rptPort);
LogInfo(" Local Address: %s", localAddress.c_str());
LogInfo(" Local Port: %u", localPort);
m_dmrNetwork = new CMMDVMNetwork(rptAddress, rptPort, localAddress, localPort, debug);
bool ret = m_dmrNetwork->open();
if (!ret) {
delete m_dmrNetwork;
m_dmrNetwork = NULL;
return false;
}
return true;
}
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