summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2012-03-30 18:02:28 -0500
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2012-03-30 18:02:28 -0500
commit0aed61de3581997e04c6d5fb8de2333b7e115452 (patch)
tree5144e4dc8f3fd8b538a9aa691beb0529dbf148e3
parente428644d86c505207079914f592d5275205493d1 (diff)
downloadtdelibs-0aed61de3581997e04c6d5fb8de2333b7e115452.tar.gz
tdelibs-0aed61de3581997e04c6d5fb8de2333b7e115452.zip
Add mount and unmount functionality to TDE disk hardware class
-rw-r--r--tdecore/tdehardwaredevices.cpp113
-rw-r--r--tdecore/tdehardwaredevices.h30
2 files changed, 142 insertions, 1 deletions
diff --git a/tdecore/tdehardwaredevices.cpp b/tdecore/tdehardwaredevices.cpp
index 6124f0173..3c57ea6e9 100644
--- a/tdecore/tdehardwaredevices.cpp
+++ b/tdecore/tdehardwaredevices.cpp
@@ -22,6 +22,9 @@
#include <tqdir.h>
#include <tqstringlist.h>
+#include <kglobal.h>
+#include <ktempfile.h>
+
#include <libudev.h>
#include <fcntl.h>
@@ -173,6 +176,22 @@ TQString TDEStorageDevice::mountPath() {
// See if this device node is mounted
// This requires parsing /proc/mounts, looking for deviceNode()
+ // The Device Mapper throws a monkey wrench into this
+ // It likes to advertise mounts as /dev/mapper/<something>,
+ // where <something> is listed in <system path>/dm/name
+ TQString dmnodename = systemPath();
+ dmnodename.append("/dm/name");
+ TQFile namefile( dmnodename );
+ TQString dmaltname;
+ if ( namefile.open( IO_ReadOnly ) ) {
+ TQTextStream stream( &namefile );
+ dmaltname = stream.readLine();
+ namefile.close();
+ }
+ if (!dmaltname.isNull()) {
+ dmaltname.prepend("/dev/mapper/");
+ }
+
TQStringList lines;
TQFile file( "/proc/mounts" );
if ( file.open( IO_ReadOnly ) ) {
@@ -181,7 +200,7 @@ TQString TDEStorageDevice::mountPath() {
while ( !stream.atEnd() ) {
line = stream.readLine();
TQStringList mountInfo = TQStringList::split(" ", line, true);
- if (*mountInfo.at(0) == deviceNode()) {
+ if ((*mountInfo.at(0) == deviceNode()) || (*mountInfo.at(0) == dmaltname)) {
return *mountInfo.at(1);
}
lines += line;
@@ -189,9 +208,90 @@ TQString TDEStorageDevice::mountPath() {
file.close();
}
+ // While this device is not directly mounted, it could concievably be mounted via the Device Mapper
+ // If so, try to retrieve the mount path...
+ TQStringList slaveDeviceList = slaveDevices();
+ for ( TQStringList::Iterator slavedevit = slaveDeviceList.begin(); slavedevit != slaveDeviceList.end(); ++slavedevit ) {
+ // Try to locate this device path in the TDE device tree
+ TDEHardwareDevices *hwdevices = KGlobal::hardwareDevices();
+ TDEGenericDevice *hwdevice = hwdevices->findBySystemPath(*slavedevit);
+ if ((hwdevice) && (hwdevice->type() == TDEGenericDeviceType::Disk)) {
+ TDEStorageDevice* sdevice = static_cast<TDEStorageDevice*>(hwdevice);
+ return sdevice->mountPath();
+ }
+ }
+
return TQString::null;
}
+TQString TDEStorageDevice::mountDevice(TQString mediaName) {
+ TQString ret = mountPath();
+
+ if (!ret.isNull()) {
+ return ret;
+ }
+
+ // Create dummy password file
+ KTempFile passwordFile(TQString::null, "tmp", 0600);
+ passwordFile.setAutoDelete(true);
+
+ TQString command = TQString("pmount -p %1 %2").arg(passwordFile.name()).arg(deviceNode());
+ if (!mediaName.isNull()) {
+ command.append(mediaName);
+ }
+
+ if (system(command.ascii()) == 0) {
+ ret = mountPath();
+ }
+
+ return ret;
+}
+
+TQString TDEStorageDevice::mountEncryptedDevice(TQString passphrase, TQString mediaName) {
+ TQString ret = mountPath();
+
+ if (!ret.isNull()) {
+ return ret;
+ }
+
+ // Create dummy password file
+ KTempFile passwordFile(TQString::null, "tmp", 0600);
+ passwordFile.setAutoDelete(true);
+ TQFile* pwFile = passwordFile.file();
+ if (!pwFile) {
+ return TQString::null;
+ }
+
+ pwFile->writeBlock(passphrase.ascii(), passphrase.length());
+ pwFile->flush();
+
+ TQString command = TQString("pmount -p %1 %2").arg(passwordFile.name()).arg(deviceNode());
+ if (!mediaName.isNull()) {
+ command.append(mediaName);
+ }
+
+ if (system(command.ascii()) == 0) {
+ ret = mountPath();
+ }
+
+ return ret;
+}
+
+bool TDEStorageDevice::unmountDevice() {
+ TQString mountpoint = mountPath();
+
+ if (mountpoint.isNull()) {
+ return true;
+ }
+
+ TQString command = TQString("pumount %1").arg(mountpoint);
+ if (system(command.ascii()) == 0) {
+ return true;
+ }
+
+ return false;
+}
+
TDEHardwareDevices::TDEHardwareDevices() {
// Set up device list
m_deviceList.setAutoDelete( TRUE ); // the list owns the objects
@@ -235,6 +335,17 @@ TDEHardwareDevices::~TDEHardwareDevices() {
udev_unref(m_udevStruct);
}
+TDEGenericDevice* TDEHardwareDevices::findBySystemPath(TQString syspath) {
+ TDEGenericDevice *hwdevice;
+ for ( hwdevice = m_deviceList.first(); hwdevice; hwdevice = m_deviceList.next() ) {
+ if (hwdevice->systemPath() == syspath) {
+ return hwdevice;
+ }
+ }
+
+ return 0;
+}
+
void TDEHardwareDevices::checkForHotPluggedHardware() {
udev_device* dev = udev_monitor_receive_device(m_udevMonitorStruct);
if (dev) {
diff --git a/tdecore/tdehardwaredevices.h b/tdecore/tdehardwaredevices.h
index 531106c36..d309ff650 100644
--- a/tdecore/tdehardwaredevices.h
+++ b/tdecore/tdehardwaredevices.h
@@ -348,6 +348,30 @@ class TDECORE_EXPORT TDEStorageDevice : public TDEGenericDevice
void setSlaveDevices(TQStringList sd);
/**
+ * Mounts the device if not encrypted
+ *
+ * @param a TQString containing a requested mount name under /media, if desired
+ * @return a TQString with the mount path, if successful
+ */
+ TQString mountDevice(TQString mediaName=TQString::null);
+
+ /**
+ * Mounts the encrypted device if the correct passphrase is given
+ *
+ * @param a TQString containing the passphrase
+ * @param a TQString containing a requested mount name under /media, if desired
+ * @return a TQString with the mount path, if successful
+ */
+ TQString mountEncryptedDevice(TQString passphrase, TQString mediaName=TQString::null);
+
+ /**
+ * Unmounts the device
+ *
+ * @return TRUE if unmount was successful
+ */
+ bool unmountDevice();
+
+ /**
* @return a TQString with the mount path, if mounted
*/
TQString mountPath();
@@ -400,6 +424,12 @@ class TDECORE_EXPORT TDEHardwareDevices : TQObject
*/
TQPtrList<TDEGenericDevice> &listAllPhysicalDevices();
+ /**
+ * Return the device with system path @arg syspath, or 0 if no device exists for that path
+ * @return TDEGenericDevice
+ */
+ TDEGenericDevice* findBySystemPath(TQString syspath);
+
signals:
void hardwareAdded(TDEGenericDevice);
void hardwareRemoved(TDEGenericDevice);