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MMDVM_CM/YSF2NXDN/YSF2NXDN.cpp

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/*
* Copyright (C) 2016,2017 by Jonathan Naylor G4KLX
* Copyright (C) 2018,2019 by Andy Uribe CA6JAU
* Copyright (C) 2018 by Manuel Sanchez EA7EE
*
* 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 "YSF2NXDN.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};
#define NXDN_FRAME_PER 75U
#define YSF_FRAME_PER 90U
#if defined(_WIN32) || defined(_WIN64)
const char* DEFAULT_INI_FILE = "YSF2NXDN.ini";
#else
const char* DEFAULT_INI_FILE = "/etc/YSF2NXDN.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) 2018,2019 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, "YSF2NXDN version %s\n", VERSION);
return 0;
} else if (arg.substr(0, 1) == "-") {
::fprintf(stderr, "Usage: YSF2NXDN [-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
CYSF2NXDN* gateway = new CYSF2NXDN(std::string(iniFile));
int ret = gateway->run();
delete gateway;
return ret;
}
CYSF2NXDN::CYSF2NXDN(const std::string& configFile) :
m_callsign(),
m_suffix(),
m_conf(configFile),
m_wiresX(NULL),
m_nxdnNetwork(NULL),
m_ysfNetwork(NULL),
m_lookup(NULL),
m_conv(),
m_srcid(1U),
m_defsrcid(1U),
m_dstid(1U),
m_netSrc(),
m_netDst(),
m_ysfSrc(),
m_ysfFrame(NULL),
m_nxdnFrame(NULL),
m_gps(NULL),
m_dtmf(NULL),
m_APRS(NULL),
m_nxdnFrames(0U),
m_ysfFrames(0U),
m_nxdninfo(false)
{
m_ysfFrame = new unsigned char[200U];
m_nxdnFrame = new unsigned char[200U];
::memset(m_ysfFrame, 0U, 200U);
::memset(m_nxdnFrame, 0U, 200U);
}
CYSF2NXDN::~CYSF2NXDN()
{
delete[] m_ysfFrame;
delete[] m_nxdnFrame;
}
int CYSF2NXDN::run()
{
bool ret = m_conf.read();
if (!ret) {
::fprintf(stderr, "YSF2NXDN: 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, "YSF2NXDN: 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_suffix = m_conf.getSuffix();
m_defsrcid = m_conf.getNXDNId();
m_dstid = m_conf.getNXDNDstId();
bool debug = m_conf.getNXDNNetworkDebug();
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, debug);
m_ysfNetwork->setDestination(dstAddress, dstPort);
ret = m_ysfNetwork->open();
if (!ret) {
::LogError("Cannot open the YSF network port");
::LogFinalise();
return 1;
}
std::string nxdn_dstAddress = m_conf.getNXDNDstAddress();
unsigned int nxdn_dstPort = m_conf.getNXDNDstPort();
std::string nxdn_localAddress = m_conf.getNXDNLocalAddress();
unsigned int nxdn_localPort = m_conf.getNXDNLocalPort();
m_nxdnNetwork = new CNXDNNetwork(nxdn_localAddress, nxdn_localPort, nxdn_dstAddress, nxdn_dstPort, debug);
ret = m_nxdnNetwork->open();
if (!ret) {
::LogError("Cannot open the NXDN network port");
::LogFinalise();
return 1;
}
std::string lookupFile = m_conf.getNXDNIdLookupFile();
unsigned int reloadTime = m_conf.getNXDNIdLookupTime();
m_lookup = new CNXDNLookup(lookupFile, reloadTime);
m_lookup->read();
CTimer networkWatchdog(100U, 0U, 1500U);
CTimer pollTimer(1000U, 5U);
std::string name = m_conf.getDescription();
bool enableWiresX = m_conf.getEnableWiresX();
std::string TGList = m_conf.getNXDNTGListFile();
unsigned int rxFrequency = m_conf.getRxFrequency();
unsigned int txFrequency = m_conf.getTxFrequency();
// CWiresX Control Object
if (enableWiresX) {
bool makeUpper = m_conf.getWiresXMakeUpper();
m_wiresX = new CWiresX(m_callsign, m_suffix, m_ysfNetwork, TGList, makeUpper);
m_dtmf = new CDTMF;
}
if (m_wiresX != NULL)
m_wiresX->setInfo(name, txFrequency, rxFrequency, m_dstid);
if (m_conf.getAPRSEnabled()) {
createGPS();
m_APRS = new CAPRSReader(m_conf.getAPRSAPIKey(), m_conf.getAPRSRefresh());
}
CStopWatch TGChange;
CStopWatch stopWatch;
CStopWatch ysfWatch;
CStopWatch nxdnWatch;
stopWatch.start();
ysfWatch.start();
nxdnWatch.start();
pollTimer.start();
unsigned char ysf_cnt = 0;
unsigned char nxdn_cnt = 0;
LogMessage("Starting YSF2NXDN-%s", VERSION);
unsigned char gps_buffer[20U];
for (; end == 0;) {
unsigned char buffer[2000U];
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 (m_wiresX != NULL) {
WX_STATUS status = m_wiresX->process(buffer + 35U, buffer + 14U, fi, dt, fn, ft);
m_ysfSrc = getSrcYSF(buffer);
switch (status) {
case WXS_CONNECT:
m_srcid = findYSFID(m_ysfSrc, false);
m_dstid = m_wiresX->getDstID();
LogMessage("Connect to TG %d has been requested by %s", m_dstid, m_ysfSrc.c_str());
sendNXDNPTT(m_srcid, m_dstid);
break;
case WXS_DX:
break;
case WXS_DISCONNECT:
LogMessage("Disconnect has been requested by %s", m_ysfSrc.c_str());
sendNXDNPTT(m_srcid, 9999U);
break;
default:
break;
}
status = WXS_NONE;
if (dt == YSF_DT_VD_MODE2)
status = m_dtmf->decodeVDMode2(buffer + 35U, (buffer[34U] & 0x01U) == 0x01U);
switch (status) {
case WXS_CONNECT:
m_srcid = findYSFID(m_ysfSrc, false);
m_dstid = m_dtmf->getDstID();
LogMessage("Connect to TG %d has been requested by %s", m_dstid, m_ysfSrc.c_str());
sendNXDNPTT(m_srcid, m_dstid);
break;
case WXS_DISCONNECT:
LogMessage("Disconnect via DTMF has been requested by %s", m_ysfSrc.c_str());
sendNXDNPTT(m_srcid, 9999U);
break;
default:
break;
}
}
if ((::memcmp(buffer, "YSFD", 4U) == 0U) && (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 (m_gps != NULL)
m_gps->data(buffer + 14U, buffer + 35U, fi, dt, fn, ft);
}
if ((buffer[34U] & 0x01U) == 0x01U) {
if (m_gps != NULL)
m_gps->reset();
if (m_dtmf != NULL)
m_dtmf->reset();
}
}
if (nxdnWatch.elapsed() > NXDN_FRAME_PER) {
unsigned int nxdnFrameType = m_conv.getNXDN(m_nxdnFrame);
if(nxdnFrameType == TAG_HEADER) {
nxdn_cnt = 0U;
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_srcid & 0xFFFF);
layer3.setDestinationGroupId(m_dstid & 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, false);
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_srcid & 0xFFFF);
layer3.setDestinationGroupId(m_dstid & 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, false);
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_srcid & 0xFFFF);
layer3.setDestinationGroupId(m_dstid & 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, false);
nxdn_cnt++;
nxdnWatch.start();
}
}
unsigned int grp = 0;
unsigned int srcId = 0;
unsigned int dstId = 0;
while (m_nxdnNetwork->read(m_nxdnFrame) > 0U) {
//CUtils::dump(1U, "NXDN Net:", m_nxdnFrame, 33U);
if ((m_nxdnFrame[0U] == 0x81U || m_nxdnFrame[0U] == 0x83U) && (m_nxdnFrame[5U] == 0x01U || m_nxdnFrame[5U] == 0x08U)) {
grp = (m_nxdnFrame[7U] & 0x20U) == 0x20U;
srcId = (m_nxdnFrame[8U] << 8) & 0xFF00U;
srcId |= (m_nxdnFrame[9U] << 0) & 0x00FFU;
dstId = (m_nxdnFrame[10U] << 8) & 0xFF00U;
dstId |= (m_nxdnFrame[11U] << 0) & 0x00FFU;
if (grp && m_dstid == dstId) {
if (m_nxdnFrame[5U] == 0x01) {
// 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_netDst = m_lookup->findCS(dstId);
m_netDst = "TG " + std::to_string(dstId);
LogMessage("Received NXDN Header: Src: %s Dst: %s", m_netSrc.c_str(), m_netDst.c_str());
m_conv.putNXDNHeader();
m_nxdnFrames = 0;
m_nxdninfo = true;
m_netSrc.resize(YSF_CALLSIGN_LENGTH, ' ');
m_netDst.resize(YSF_CALLSIGN_LENGTH, ' ');
}
else if (m_nxdnFrame[5U] == 0x08) {
LogMessage("NXDN received end of voice transmission, %.1f seconds", float(m_nxdnFrames) / 12.5F);
m_conv.putNXDNEOT();
m_nxdnFrames = 0;
m_nxdninfo = false;
}
}
}
else {
if (!m_nxdninfo) {
// 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_netDst = m_lookup->findCS(dstId);
LogMessage("Received NXDN entry late: Src: %s Dst: %s", m_netSrc.c_str(), m_netDst.c_str());
m_conv.putNXDNHeader();
m_nxdnFrames = 0;
m_nxdninfo = true;
m_netSrc.resize(YSF_CALLSIGN_LENGTH, ' ');
m_netDst.resize(YSF_CALLSIGN_LENGTH, ' ');
}
m_conv.putNXDN(m_nxdnFrame);
m_nxdnFrames++;
}
}
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(m_conf.getFICHCallSign());
fich.setCM(m_conf.getFICHCallMode());
fich.setBN(0U);
fich.setBT(0U);
fich.setFN(0U);
fich.setFT(m_conf.getFICHFrameTotal());
fich.setDev(0U);
fich.setMR(m_conf.getFICHMessageRoute());
fich.setVoIP(m_conf.getFICHVOIP());
fich.setDT(m_conf.getFICHDataType());
fich.setSQL(m_conf.getFICHSQLType());
fich.setSQ(m_conf.getFICHSQLCode());
fich.encode(m_ysfFrame + 35U);
unsigned char csd1[20U], csd2[20U];
memset(csd1, '*', YSF_CALLSIGN_LENGTH/2);
memcpy(csd1 + YSF_CALLSIGN_LENGTH/2, m_conf.getYsfRadioID(), YSF_CALLSIGN_LENGTH/2);
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_HEADER);
fich.setCS(m_conf.getFICHCallSign());
fich.setCM(m_conf.getFICHCallMode());
fich.setBN(0U);
fich.setBT(0U);
fich.setFN(0U);
fich.setFT(m_conf.getFICHFrameTotal());
fich.setDev(0U);
fich.setMR(m_conf.getFICHMessageRoute());
fich.setVoIP(m_conf.getFICHVOIP());
fich.setDT(m_conf.getFICHDataType());
fich.setSQL(m_conf.getFICHSQLType());
fich.setSQ(m_conf.getFICHSQLCode());
fich.encode(m_ysfFrame + 35U);
unsigned char csd1[20U], csd2[20U];
memset(csd1, '*', YSF_CALLSIGN_LENGTH/2);
memcpy(csd1 + YSF_CALLSIGN_LENGTH/2, m_conf.getYsfRadioID(), YSF_CALLSIGN_LENGTH/2);
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 char dch[10U];
unsigned int fn = (ysf_cnt - 1U) % 7U;
::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:
memset(dch, '*', YSF_CALLSIGN_LENGTH/2);
memcpy(dch + YSF_CALLSIGN_LENGTH/2, m_conf.getYsfRadioID(), YSF_CALLSIGN_LENGTH/2);
ysfPayload.writeVDMode2Data(m_ysfFrame + 35U, dch);
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 5:
memset(dch, ' ', YSF_CALLSIGN_LENGTH/2);
memcpy(dch + YSF_CALLSIGN_LENGTH/2, m_conf.getYsfRadioID(), YSF_CALLSIGN_LENGTH/2);
ysfPayload.writeVDMode2Data(m_ysfFrame + 35U, dch); // Rem3/4
break;
case 6:
ysfPayload.writeVDMode2Data(m_ysfFrame + 35U, m_conf.getYsfDT1());
break;
case 7:
ysfPayload.writeVDMode2Data(m_ysfFrame + 35U, m_conf.getYsfDT2());
break;
default:
ysfPayload.writeVDMode2Data(m_ysfFrame + 35U, (const unsigned char*)" ");
}
// Set the FICH
fich.setFI(YSF_FI_COMMUNICATIONS);
fich.setCS(m_conf.getFICHCallSign());
fich.setCM(m_conf.getFICHCallMode());
fich.setBN(0U);
fich.setBT(0U);
fich.setFN(fn);
fich.setFT(m_conf.getFICHFrameTotal());
fich.setDev(0U);
fich.setMR(m_conf.getFICHMessageRoute());
fich.setVoIP(m_conf.getFICHVOIP());
fich.setDT(m_conf.getFICHDataType());
fich.setSQL(m_conf.getFICHSQLType());
fich.setSQ(m_conf.getFICHSQLCode());
fich.encode(m_ysfFrame + 35U);
// Net frame counter
m_ysfFrame[34U] = (ysf_cnt & 0x7FU) << 1;
// Send data to MMDVMHost
m_ysfNetwork->write(m_ysfFrame);
ysf_cnt++;
ysfWatch.start();
}
}
stopWatch.start();
m_ysfNetwork->clock(ms);
m_nxdnNetwork->clock(ms);
if (m_wiresX != NULL)
m_wiresX->clock(ms);
if (m_gps != NULL)
m_gps->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_nxdnNetwork->close();
if (m_APRS != NULL) {
m_APRS->stop();
delete m_APRS;
}
if (m_gps != NULL) {
m_gps->close();
delete m_gps;
}
delete m_nxdnNetwork;
delete m_ysfNetwork;
if (m_wiresX != NULL) {
delete m_wiresX;
delete m_dtmf;
}
::LogFinalise();
return 0;
}
void CYSF2NXDN::createGPS()
{
std::string hostname = m_conf.getAPRSServer();
unsigned int port = m_conf.getAPRSPort();
std::string password = m_conf.getAPRSPassword();
std::string desc = m_conf.getAPRSDescription();
LogMessage("APRS Parameters");
LogMessage(" Server: %s", hostname.c_str());
LogMessage(" Port: %u", port);
LogMessage(" Passworwd: %s", password.c_str());
LogMessage(" Description: %s", desc.c_str());
m_gps = new CGPS(m_callsign, m_suffix, password, hostname, port);
unsigned int txFrequency = m_conf.getTxFrequency();
unsigned int rxFrequency = m_conf.getRxFrequency();
float latitude = m_conf.getLatitude();
float longitude = m_conf.getLongitude();
int height = m_conf.getHeight();
m_gps->setInfo(txFrequency, rxFrequency, latitude, longitude, height, desc);
bool ret = m_gps->open();
if (!ret) {
delete m_gps;
LogMessage("Error starting GPS");
m_gps = NULL;
}
}
unsigned int CYSF2NXDN::findYSFID(std::string cs, bool showdst)
{
std::string cstrim;
bool nxdnpc = 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 (id == 0) {
id = m_defsrcid;
if (showdst)
LogMessage("Not NXDN ID found, using default ID: %u, DstID: %s%u", id, nxdnpc ? "" : "TG ", m_dstid);
else
LogMessage("Not NXDN ID found, using default ID: %u", id);
}
else {
if (showdst)
LogMessage("NXDN ID of %s: %u, DstID: %s%u", cstrim.c_str(), id, nxdnpc ? "" : "TG ", m_dstid);
else
LogMessage("NXDN ID of %s: %u", cstrim.c_str(), id);
}
return id;
}
std::string CYSF2NXDN::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 CYSF2NXDN::sendNXDNPTT(unsigned int src, unsigned int dst)
{
// Send NXDN Header
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(src & 0xFFFF);
layer3.setDestinationGroupId(dst & 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, false);
// Send NXDN EOT
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();
sacch.setRAN(0x01);
sacch.setStructure(NXDN_SR_SINGLE);
sacch.setData(SACCH_IDLE);
sacch.getRaw(m_nxdnFrame + 1U);
layer3.setMessageType(NXDN_MESSAGE_TYPE_TX_REL);
layer3.setSourceUnitId(src & 0xFFFF);
layer3.setDestinationGroupId(dst & 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, false);
}
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