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573 lines
16 KiB
573 lines
16 KiB
/*
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* Copyright (C) 2016-2020 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 "YSFReflectors.h"
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#include "DGIdGateway.h"
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#include "DGIdNetwork.h"
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#include "IMRSNetwork.h"
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#include "YSFNetwork.h"
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#include "FCSNetwork.h"
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#include "UDPSocket.h"
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#include "StopWatch.h"
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#include "Version.h"
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#include "YSFFICH.h"
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#include "Thread.h"
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#include "Timer.h"
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#include "Utils.h"
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#include "Log.h"
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#if defined(_WIN32) || defined(_WIN64)
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#include <Windows.h>
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#else
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#include <sys/time.h>
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#include <unistd.h>
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#include <signal.h>
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#include <fcntl.h>
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#include <pwd.h>
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#endif
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#if defined(_WIN32) || defined(_WIN64)
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const char* DEFAULT_INI_FILE = "DGIdGateway.ini";
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#else
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const char* DEFAULT_INI_FILE = "/etc/DGIdGateway.ini";
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#endif
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include <clocale>
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#include <cmath>
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int main(int argc, char** argv)
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{
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const char* iniFile = DEFAULT_INI_FILE;
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if (argc > 1) {
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for (int currentArg = 1; currentArg < argc; ++currentArg) {
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std::string arg = argv[currentArg];
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if ((arg == "-v") || (arg == "--version")) {
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::fprintf(stdout, "DGIdGateway version %s\n", VERSION);
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return 0;
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} else if (arg.substr(0, 1) == "-") {
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::fprintf(stderr, "Usage: DGIdGateway [-v|--version] [filename]\n");
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return 1;
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} else {
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iniFile = argv[currentArg];
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}
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}
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}
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CDGIdGateway* gateway = new CDGIdGateway(std::string(iniFile));
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int ret = gateway->run();
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delete gateway;
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return ret;
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}
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CDGIdGateway::CDGIdGateway(const std::string& configFile) :
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m_callsign(),
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m_suffix(),
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m_conf(configFile),
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m_writer(NULL),
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m_gps(NULL)
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{
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}
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CDGIdGateway::~CDGIdGateway()
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{
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}
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int CDGIdGateway::run()
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{
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bool ret = m_conf.read();
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if (!ret) {
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::fprintf(stderr, "DGIdGateway: cannot read the .ini file\n");
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return 1;
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}
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setlocale(LC_ALL, "C");
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#if !defined(_WIN32) && !defined(_WIN64)
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bool m_daemon = m_conf.getDaemon();
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if (m_daemon) {
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// Create new process
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pid_t pid = ::fork();
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if (pid == -1) {
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::fprintf(stderr, "Couldn't fork() , exiting\n");
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return -1;
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}
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else if (pid != 0) {
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exit(EXIT_SUCCESS);
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}
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// Create new session and process group
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if (::setsid() == -1) {
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::fprintf(stderr, "Couldn't setsid(), exiting\n");
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return -1;
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}
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// Set the working directory to the root directory
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if (::chdir("/") == -1) {
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::fprintf(stderr, "Couldn't cd /, exiting\n");
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return -1;
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}
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// If we are currently root...
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if (getuid() == 0) {
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struct passwd* user = ::getpwnam("mmdvm");
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if (user == NULL) {
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::fprintf(stderr, "Could not get the mmdvm user, exiting\n");
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return -1;
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}
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uid_t mmdvm_uid = user->pw_uid;
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gid_t mmdvm_gid = user->pw_gid;
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// Set user and group ID's to mmdvm:mmdvm
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if (setgid(mmdvm_gid) != 0) {
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::fprintf(stderr, "Could not set mmdvm GID, exiting\n");
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return -1;
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}
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if (setuid(mmdvm_uid) != 0) {
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::fprintf(stderr, "Could not set mmdvm UID, exiting\n");
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return -1;
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}
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// Double check it worked (AKA Paranoia)
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if (setuid(0) != -1) {
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::fprintf(stderr, "It's possible to regain root - something is wrong!, exiting\n");
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return -1;
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}
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}
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}
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#endif
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ret = ::LogInitialise(m_conf.getLogFilePath(), m_conf.getLogFileRoot(), m_conf.getLogFileLevel(), m_conf.getLogDisplayLevel());
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if (!ret) {
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::fprintf(stderr, "DGIdGateway: unable to open the log file\n");
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return 1;
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}
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#if !defined(_WIN32) && !defined(_WIN64)
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if (m_daemon) {
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::close(STDIN_FILENO);
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::close(STDOUT_FILENO);
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::close(STDERR_FILENO);
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}
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#endif
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m_callsign = m_conf.getCallsign();
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m_suffix = m_conf.getSuffix();
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bool debug = m_conf.getDebug();
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in_addr rptAddress = CUDPSocket::lookup(m_conf.getRptAddress());
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unsigned int rptPort = m_conf.getRptPort();
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std::string myAddress = m_conf.getMyAddress();
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unsigned int myPort = m_conf.getMyPort();
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CYSFNetwork rptNetwork(myAddress, myPort, "MMDVM", rptAddress, rptPort, m_callsign, debug);
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ret = rptNetwork.open();
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if (!ret) {
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::LogError("Cannot open the repeater network port");
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::LogFinalise();
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return 1;
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}
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std::string fileName = m_conf.getYSFNetHosts();
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CYSFReflectors* reflectors = new CYSFReflectors(fileName);
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reflectors->load();
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CIMRSNetwork* imrs = new CIMRSNetwork;
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ret = imrs->open();
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if (!ret) {
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delete imrs;
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imrs = NULL;
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}
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unsigned int currentDGId = 0U;
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CDGIdNetwork* dgIdNetwork[100U];
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for (unsigned int i = 0U; i < 100U; i++)
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dgIdNetwork[i] = NULL;
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std::vector<DGIdData*> dgIdData = m_conf.getDGIdData();
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for (std::vector<DGIdData*>::const_iterator it = dgIdData.begin(); it != dgIdData.end(); ++it) {
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unsigned int dgid = (*it)->m_dgId;
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std::string type = (*it)->m_type;
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bool statc = (*it)->m_static;
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unsigned int rfHangTime = (*it)->m_rfHangTime;
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unsigned int netHangTime = (*it)->m_netHangTime;
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bool debug = (*it)->m_debug;
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if (type == "FCS") {
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std::string name = (*it)->m_name;
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unsigned int local = (*it)->m_local;
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unsigned int txFrequency = m_conf.getTxFrequency();
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unsigned int rxFrequency = m_conf.getRxFrequency();
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std::string locator = calculateLocator();
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unsigned int id = m_conf.getId();
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dgIdNetwork[dgid] = new CFCSNetwork(name, local, m_callsign, rxFrequency, txFrequency, locator, id, debug);
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dgIdNetwork[dgid]->m_modes = YSF_DT_VD_MODE1 | YSF_DT_VD_MODE2 | YSF_DT_VOICE_FR_MODE | YSF_DT_DATA_FR_MODE;
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dgIdNetwork[dgid]->m_static = statc;
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dgIdNetwork[dgid]->m_rfHangTime = rfHangTime;
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dgIdNetwork[dgid]->m_netHangTime = netHangTime;
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} else if (type == "YSF") {
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std::string name = (*it)->m_name;
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unsigned int local = (*it)->m_local;
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CYSFReflector* reflector = reflectors->findByName(name);
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if (reflector != NULL) {
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dgIdNetwork[dgid] = new CYSFNetwork(local, reflector->m_name, reflector->m_address, reflector->m_port, m_callsign, debug);;
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dgIdNetwork[dgid]->m_modes = YSF_DT_VD_MODE1 | YSF_DT_VD_MODE2 | YSF_DT_VOICE_FR_MODE | YSF_DT_DATA_FR_MODE;
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dgIdNetwork[dgid]->m_static = statc;
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dgIdNetwork[dgid]->m_rfHangTime = rfHangTime;
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dgIdNetwork[dgid]->m_netHangTime = netHangTime;
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}
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} else if (type == "IMRS") {
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if (imrs != NULL) {
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std::vector<IMRSDestination*> destinations = (*it)->m_destinations;
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std::vector<IMRSDest*> dests;
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std::string name = (*it)->m_name;
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for (std::vector<IMRSDestination*>::const_iterator it = destinations.begin(); it != destinations.end(); ++it) {
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IMRSDest* dest = new IMRSDest;
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dest->m_address = CUDPSocket::lookup((*it)->m_address);
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dest->m_dgId = (*it)->m_dgId;
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dests.push_back(dest);
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}
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imrs->addDGId(dgid, name, dests, debug);
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dgIdNetwork[dgid] = imrs;
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dgIdNetwork[dgid]->m_modes = YSF_DT_VD_MODE1 | YSF_DT_VD_MODE2 | YSF_DT_VOICE_FR_MODE | YSF_DT_DATA_FR_MODE;
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dgIdNetwork[dgid]->m_static = true;
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dgIdNetwork[dgid]->m_rfHangTime = rfHangTime;
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dgIdNetwork[dgid]->m_netHangTime = netHangTime;
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}
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} else if (type == "Parrot") {
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in_addr address = CUDPSocket::lookup((*it)->m_address);
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unsigned int port = (*it)->m_port;
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unsigned int local = (*it)->m_local;
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if (address.s_addr != INADDR_NONE) {
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dgIdNetwork[dgid] = new CYSFNetwork(local, "PARROT", address, port, m_callsign, debug);
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dgIdNetwork[dgid]->m_modes = YSF_DT_VD_MODE1 | YSF_DT_VD_MODE2 | YSF_DT_VOICE_FR_MODE | YSF_DT_DATA_FR_MODE;
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dgIdNetwork[dgid]->m_static = statc;
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dgIdNetwork[dgid]->m_rfHangTime = rfHangTime;
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dgIdNetwork[dgid]->m_netHangTime = netHangTime;
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}
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} else if (type == "YSF2DMR") {
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in_addr address = CUDPSocket::lookup((*it)->m_address);
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unsigned int port = (*it)->m_port;
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unsigned int local = (*it)->m_local;
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if (address.s_addr != INADDR_NONE) {
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dgIdNetwork[dgid] = new CYSFNetwork(local, "YSF2DMR", address, port, m_callsign, debug);
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dgIdNetwork[dgid]->m_modes = YSF_DT_VD_MODE1 | YSF_DT_VD_MODE2;
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dgIdNetwork[dgid]->m_static = statc;
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dgIdNetwork[dgid]->m_rfHangTime = rfHangTime;
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dgIdNetwork[dgid]->m_netHangTime = netHangTime;
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}
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} else if (type == "YSF2NXDN") {
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in_addr address = CUDPSocket::lookup((*it)->m_address);
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unsigned int port = (*it)->m_port;
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unsigned int local = (*it)->m_local;
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if (address.s_addr != INADDR_NONE) {
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dgIdNetwork[dgid] = new CYSFNetwork(local, "YSF2NXDN", address, port, m_callsign, debug);
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dgIdNetwork[dgid]->m_modes = YSF_DT_VD_MODE1 | YSF_DT_VD_MODE2;
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dgIdNetwork[dgid]->m_static = statc;
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dgIdNetwork[dgid]->m_rfHangTime = rfHangTime;
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dgIdNetwork[dgid]->m_netHangTime = netHangTime;
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}
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} else if (type == "YSF2P25") {
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in_addr address = CUDPSocket::lookup((*it)->m_address);
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unsigned int port = (*it)->m_port;
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unsigned int local = (*it)->m_local;
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if (address.s_addr != INADDR_NONE) {
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dgIdNetwork[dgid] = new CYSFNetwork(local, "YSF2P25", address, port, m_callsign, debug);
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dgIdNetwork[dgid]->m_modes = YSF_DT_VOICE_FR_MODE;
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dgIdNetwork[dgid]->m_static = statc;
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dgIdNetwork[dgid]->m_rfHangTime = rfHangTime;
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dgIdNetwork[dgid]->m_netHangTime = netHangTime;
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}
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}
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if (dgIdNetwork[dgid] != NULL && dgIdNetwork[dgid] != imrs) {
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bool ret = dgIdNetwork[dgid]->open();
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if (!ret) {
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delete dgIdNetwork[dgid];
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dgIdNetwork[dgid] = NULL;
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}
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if (dgIdNetwork[dgid] != NULL && dgIdNetwork[dgid]->m_static) {
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dgIdNetwork[dgid]->link();
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dgIdNetwork[dgid]->link();
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dgIdNetwork[dgid]->link();
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}
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}
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}
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createGPS();
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CTimer inactivityTimer(1000U);
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CStopWatch stopWatch;
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stopWatch.start();
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LogMessage("Starting DGIdGateway-%s", VERSION);
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for (;;) {
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unsigned char buffer[200U];
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memset(buffer, 0U, 200U);
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if (rptNetwork.read(0U, buffer) > 0U) {
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if (::memcmp(buffer + 0U, "YSFD", 4U) == 0) {
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CYSFFICH fich;
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bool valid = fich.decode(buffer + 35U);
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if (valid) {
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unsigned char fi = fich.getFI();
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unsigned char dt = fich.getDT();
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unsigned char fn = fich.getFN();
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unsigned char ft = fich.getFT();
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unsigned char dgId = fich.getDGId();
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if (dgId != 0U && dgId != currentDGId) {
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if (dgIdNetwork[currentDGId] != NULL && !dgIdNetwork[currentDGId]->m_static) {
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dgIdNetwork[currentDGId]->unlink();
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dgIdNetwork[currentDGId]->unlink();
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dgIdNetwork[currentDGId]->unlink();
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}
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if (dgIdNetwork[dgId] != NULL && !dgIdNetwork[dgId]->m_static) {
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dgIdNetwork[dgId]->link();
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dgIdNetwork[dgId]->link();
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dgIdNetwork[dgId]->link();
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}
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std::string desc = dgIdNetwork[dgId]->getDesc(dgId);
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LogDebug("DG-ID set to %u (%s) via RF", dgId, desc.c_str());
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currentDGId = dgId;
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}
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if (m_gps != NULL)
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m_gps->data(buffer + 14U, buffer + 35U, fi, dt, fn, ft);
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if (currentDGId != 0U && dgIdNetwork[currentDGId] != NULL) {
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// Only allow the wanted modes through
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if ((dgIdNetwork[currentDGId]->m_modes & dt) != 0U) {
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// Set the DG-ID to zero for compatibility
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fich.setDGId(0U);
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fich.encode(buffer + 35U);
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dgIdNetwork[currentDGId]->write(currentDGId, buffer);
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}
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inactivityTimer.setTimeout(dgIdNetwork[currentDGId]->m_rfHangTime);
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inactivityTimer.start();
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}
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}
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if ((buffer[34U] & 0x01U) == 0x01U) {
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if (m_gps != NULL)
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m_gps->reset();
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}
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}
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}
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for (unsigned int i = 1U; i < 100U; i++) {
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if (dgIdNetwork[i] != NULL) {
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unsigned int len = dgIdNetwork[i]->read(i, buffer);
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if (len > 0U && (i == currentDGId || currentDGId == 0U)) {
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if (::memcmp(buffer + 0U, "YSFD", 4U) == 0) {
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CYSFFICH fich;
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bool valid = fich.decode(buffer + 35U);
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if (valid) {
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fich.setDGId(i);
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fich.encode(buffer + 35U);
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rptNetwork.write(0U, buffer);
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inactivityTimer.setTimeout(dgIdNetwork[i]->m_netHangTime);
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inactivityTimer.start();
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if (currentDGId == 0U) {
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std::string desc = dgIdNetwork[i]->getDesc(i);
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LogDebug("DG-ID set to %u (%s) via Network", i, desc.c_str());
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currentDGId = i;
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}
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}
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}
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}
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}
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}
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unsigned int ms = stopWatch.elapsed();
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stopWatch.start();
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rptNetwork.clock(ms);
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for (unsigned int i = 1U; i < 100U; i++) {
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if (dgIdNetwork[i] != NULL)
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dgIdNetwork[i]->clock(ms);
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}
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if (m_writer != NULL)
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m_writer->clock(ms);
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inactivityTimer.clock(ms);
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if (inactivityTimer.isRunning() && inactivityTimer.hasExpired()) {
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if (dgIdNetwork[currentDGId] != NULL && !dgIdNetwork[currentDGId]->m_static) {
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dgIdNetwork[currentDGId]->unlink();
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dgIdNetwork[currentDGId]->unlink();
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dgIdNetwork[currentDGId]->unlink();
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}
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LogDebug("DG-ID set to 0 (None) via timeout");
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currentDGId = 0U;
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inactivityTimer.stop();
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}
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if (ms < 5U)
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CThread::sleep(5U);
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}
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rptNetwork.close();
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if (m_gps != NULL) {
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m_writer->close();
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delete m_writer;
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delete m_gps;
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}
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for (unsigned int i = 1U; i < 100U; i++) {
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if (dgIdNetwork[i] != NULL && dgIdNetwork[i] != imrs) {
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dgIdNetwork[i]->unlink();
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dgIdNetwork[i]->unlink();
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dgIdNetwork[i]->unlink();
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dgIdNetwork[i]->close();
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delete dgIdNetwork[i];
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}
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}
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if (imrs != NULL) {
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imrs->close();
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delete imrs;
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}
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::LogFinalise();
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|
return 0;
|
|
}
|
|
|
|
void CDGIdGateway::createGPS()
|
|
{
|
|
if (!m_conf.getAPRSEnabled())
|
|
return;
|
|
|
|
std::string address = m_conf.getAPRSAddress();
|
|
unsigned int port = m_conf.getAPRSPort();
|
|
std::string suffix = m_conf.getAPRSSuffix();
|
|
bool debug = m_conf.getDebug();
|
|
|
|
m_writer = new CAPRSWriter(m_callsign, m_suffix, address, port, suffix, debug);
|
|
|
|
unsigned int txFrequency = m_conf.getTxFrequency();
|
|
unsigned int rxFrequency = m_conf.getRxFrequency();
|
|
std::string desc = m_conf.getAPRSDescription();
|
|
|
|
m_writer->setInfo(txFrequency, rxFrequency, desc);
|
|
|
|
bool enabled = m_conf.getGPSDEnabled();
|
|
if (enabled) {
|
|
std::string address = m_conf.getGPSDAddress();
|
|
std::string port = m_conf.getGPSDPort();
|
|
|
|
m_writer->setGPSDLocation(address, port);
|
|
} else {
|
|
float latitude = m_conf.getLatitude();
|
|
float longitude = m_conf.getLongitude();
|
|
int height = m_conf.getHeight();
|
|
|
|
m_writer->setStaticLocation(latitude, longitude, height);
|
|
}
|
|
|
|
bool ret = m_writer->open();
|
|
if (!ret) {
|
|
delete m_writer;
|
|
m_writer = NULL;
|
|
return;
|
|
}
|
|
|
|
m_gps = new CGPS(m_writer);
|
|
}
|
|
|
|
std::string CDGIdGateway::calculateLocator()
|
|
{
|
|
std::string locator;
|
|
|
|
float latitude = m_conf.getLatitude();
|
|
float longitude = m_conf.getLongitude();
|
|
|
|
if (latitude < -90.0F || latitude > 90.0F)
|
|
return "AA00AA";
|
|
|
|
if (longitude < -360.0F || longitude > 360.0F)
|
|
return "AA00AA";
|
|
|
|
latitude += 90.0F;
|
|
|
|
if (longitude > 180.0F)
|
|
longitude -= 360.0F;
|
|
|
|
if (longitude < -180.0F)
|
|
longitude += 360.0F;
|
|
|
|
longitude += 180.0F;
|
|
|
|
float lon = ::floor(longitude / 20.0F);
|
|
float lat = ::floor(latitude / 10.0F);
|
|
|
|
locator += 'A' + (unsigned int)lon;
|
|
locator += 'A' + (unsigned int)lat;
|
|
|
|
longitude -= lon * 20.0F;
|
|
latitude -= lat * 10.0F;
|
|
|
|
lon = ::floor(longitude / 2.0F);
|
|
lat = ::floor(latitude / 1.0F);
|
|
|
|
locator += '0' + (unsigned int)lon;
|
|
locator += '0' + (unsigned int)lat;
|
|
|
|
longitude -= lon * 2.0F;
|
|
latitude -= lat * 1.0F;
|
|
|
|
lon = ::floor(longitude / (2.0F / 24.0F));
|
|
lat = ::floor(latitude / (1.0F / 24.0F));
|
|
|
|
locator += 'A' + (unsigned int)lon;
|
|
locator += 'A' + (unsigned int)lat;
|
|
|
|
return locator;
|
|
}
|
|
|