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-rw-r--r--tdm/cryptocardwatcher/main.cpp139
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diff --git a/tdm/cryptocardwatcher/main.cpp b/tdm/cryptocardwatcher/main.cpp
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+/*
+ * Copyright 2015 Timothy Pearson <kb9vqf@pearsoncomputing.net>
+ *
+ * This file is part of cryptocardwatcher, the TDE Cryptographic Card Session Monitor
+ *
+ * cryptocardwatcher 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 3
+ * of the License, or (at your option) any later version.
+ *
+ * cryptocardwatcher 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 cryptocardwatcher. If not, see http://www.gnu.org/licenses/.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <exception>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <sys/file.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/select.h>
+#include <sys/time.h>
+#include <termios.h>
+#include <signal.h>
+#include <stdint.h>
+
+#include <tqobject.h>
+
+#include <tdeapplication.h>
+#include <tdecmdlineargs.h>
+
+#include <ksslcertificate.h>
+
+#include <tdehardwaredevices.h>
+#include <tdecryptographiccarddevice.h>
+
+#include "watcher.h"
+
+int lockfd = -1;
+char lockFileName[256];
+
+// --------------------------------------------------------------------------------------
+// Useful function from Stack Overflow
+// http://stackoverflow.com/questions/1599459/optimal-lock-file-method
+// --------------------------------------------------------------------------------------
+int tryGetLock(char const *lockName) {
+ mode_t m = umask( 0 );
+ int fd = open( lockName, O_RDWR|O_CREAT, 0666 );
+ umask( m );
+ if( fd >= 0 && flock( fd, LOCK_EX | LOCK_NB ) < 0 ) {
+ close( fd );
+ fd = -1;
+ }
+ return fd;
+}
+// --------------------------------------------------------------------------------------
+
+// --------------------------------------------------------------------------------------
+// Useful function from Stack Overflow
+// http://stackoverflow.com/questions/1599459/optimal-lock-file-method
+// --------------------------------------------------------------------------------------
+void releaseLock(int fd, char const *lockName) {
+ if( fd < 0 ) {
+ return;
+ }
+ remove( lockName );
+ close( fd );
+}
+// --------------------------------------------------------------------------------------
+
+void handle_sigterm(int signum) {
+ if (lockfd >= 0) {
+ releaseLock(lockfd, lockFileName);
+ }
+ exit(0);
+}
+
+static TDECmdLineOptions options[] =
+{
+ TDECmdLineLastOption
+};
+
+int main(int argc, char *argv[]) {
+ int ret = -1;
+
+ // Register cleanup handlers
+ struct sigaction action;
+ memset(&action, 0, sizeof(struct sigaction));
+ action.sa_handler = handle_sigterm;
+ sigaction(SIGTERM, &action, NULL);
+
+ // Ensure only one process is running
+ sprintf(lockFileName, "/var/lock/cryptocardwatcher.lock");
+ lockfd = tryGetLock(lockFileName);
+ if (lockfd < 0) {
+ printf ("[cryptocardwatcher] Another instance of this program is already running!\n[cryptocardwatcher] Lockfile detected at '%s'\n", lockFileName);
+ return -2;
+ }
+
+ // Parse command line arguments
+ TDECmdLineArgs::init(argc, argv, "cryptocardwatcher", "cryptocardwatcher", "TDE Cryptographic Card Session Monitor", "0.1");
+ TDECmdLineArgs::addCmdLineOptions(options);
+ TDEApplication::addCmdLineOptions();
+
+ // Initialize TDE application
+ TDEApplication tdeapp(false, false);
+ tdeapp.disableAutoDcopRegistration();
+ CardWatcher* watcher = new CardWatcher();
+
+ // Initialize SmartCard readers
+ TDEGenericDevice *hwdevice;
+ TDEHardwareDevices *hwdevices = TDEGlobal::hardwareDevices();
+ TDEGenericHardwareList cardReaderList = hwdevices->listByDeviceClass(TDEGenericDeviceType::CryptographicCard);
+ for (hwdevice = cardReaderList.first(); hwdevice; hwdevice = cardReaderList.next()) {
+ TDECryptographicCardDevice* cdevice = static_cast<TDECryptographicCardDevice*>(hwdevice);
+ TQObject::connect(cdevice, TQT_SIGNAL(cardInserted(TDECryptographicCardDevice*)), watcher, TQT_SLOT(cryptographicCardInserted(TDECryptographicCardDevice*)));
+ TQObject::connect(cdevice, TQT_SIGNAL(cardRemoved(TDECryptographicCardDevice*)), watcher, TQT_SLOT(cryptographicCardRemoved(TDECryptographicCardDevice*)));
+ cdevice->enableCardMonitoring(true);
+ }
+
+ // Start TDE application
+ ret = tdeapp.exec();
+
+ // Clean up
+ delete watcher;
+
+ releaseLock(lockfd, lockFileName);
+ return ret;
+}