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authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2012-03-30 15:44:16 -0500
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2012-03-30 15:44:16 -0500
commite428644d86c505207079914f592d5275205493d1 (patch)
treeaee7ed4643b6ef660cec45558fce7408a48bfe13
parent1b63411074c3bbd49a6d0dc90c5eb906025e3aec (diff)
downloadtdelibs-e428644d86c505207079914f592d5275205493d1.tar.gz
tdelibs-e428644d86c505207079914f592d5275205493d1.zip
Add device mapper functions to TDE hardware library
-rw-r--r--tdecore/tdehardwaredevices.cpp95
-rw-r--r--tdecore/tdehardwaredevices.h26
2 files changed, 115 insertions, 6 deletions
diff --git a/tdecore/tdehardwaredevices.cpp b/tdecore/tdehardwaredevices.cpp
index 1874c65d7..6124f0173 100644
--- a/tdecore/tdehardwaredevices.cpp
+++ b/tdecore/tdehardwaredevices.cpp
@@ -19,6 +19,7 @@
#include <tdehardwaredevices.h>
#include <tqfile.h>
+#include <tqdir.h>
#include <tqstringlist.h>
#include <libudev.h>
@@ -152,6 +153,22 @@ void TDEStorageDevice::setDiskUUID(TQString id) {
m_diskUUID = id;
}
+TQStringList &TDEStorageDevice::holdingDevices() {
+ return m_holdingDevices;
+}
+
+void TDEStorageDevice::setHoldingDevices(TQStringList hd) {
+ m_slaveDevices = hd;
+}
+
+TQStringList &TDEStorageDevice::slaveDevices() {
+ return m_slaveDevices;
+}
+
+void TDEStorageDevice::setSlaveDevices(TQStringList sd) {
+ m_slaveDevices = sd;
+}
+
TQString TDEStorageDevice::mountPath() {
// See if this device node is mounted
// This requires parsing /proc/mounts, looking for deviceNode()
@@ -305,6 +322,47 @@ TDEGenericDevice* TDEHardwareDevices::classifyUnknownDevice(udev_device* dev) {
}
fclose(fp);
}
+
+ // See if any other devices are exclusively using this device, such as the Device Mapper|
+ TQStringList holdingDeviceNodes;
+ TQString holdersnodename = udev_device_get_syspath(dev);
+ holdersnodename.append("/holders/");
+ TQDir holdersdir(holdersnodename);
+ holdersdir.setFilter(TQDir::All);
+ const TQFileInfoList *dirlist = holdersdir.entryInfoList();
+ if (dirlist) {
+ TQFileInfoListIterator holdersdirit(*dirlist);
+ TQFileInfo *dirfi;
+ while ( (dirfi = holdersdirit.current()) != 0 ) {
+ if (dirfi->isSymLink()) {
+ char* collapsedPath = realpath((holdersnodename + dirfi->readLink()).ascii(), NULL);
+ holdingDeviceNodes.append(TQString(collapsedPath));
+ free(collapsedPath);
+ }
+ ++holdersdirit;
+ }
+ }
+
+ // See if any other physical devices underlie this device, for example when the Device Mapper is in use
+ TQStringList slaveDeviceNodes;
+ TQString slavesnodename = udev_device_get_syspath(dev);
+ slavesnodename.append("/slaves/");
+ TQDir slavedir(slavesnodename);
+ slavedir.setFilter(TQDir::All);
+ dirlist = slavedir.entryInfoList();
+ if (dirlist) {
+ TQFileInfoListIterator slavedirit(*dirlist);
+ TQFileInfo *dirfi;
+ while ( (dirfi = slavedirit.current()) != 0 ) {
+ if (dirfi->isSymLink()) {
+ char* collapsedPath = realpath((slavesnodename + dirfi->readLink()).ascii(), NULL);
+ slaveDeviceNodes.append(TQString(collapsedPath));
+ free(collapsedPath);
+ }
+ ++slavedirit;
+ }
+ }
+
device = new TDEStorageDevice(TDEGenericDeviceType::Disk);
// Determine generic disk information
@@ -432,10 +490,10 @@ TDEGenericDevice* TDEHardwareDevices::classifyUnknownDevice(udev_device* dev) {
diskstatus = diskstatus | TDEDiskDeviceStatus::Removable;
}
- if (disktypestring.upper() == "CRYPTO_LUKS") {
+ if (filesystemtype.upper() == "CRYPTO_LUKS") {
disktype = disktype | TDEDiskDeviceType::LUKS;
}
- else if (disktypestring.upper() == "CRYPTO") {
+ else if (filesystemtype.upper() == "CRYPTO") {
disktype = disktype | TDEDiskDeviceType::OtherCrypted;
}
@@ -452,11 +510,32 @@ TDEGenericDevice* TDEHardwareDevices::classifyUnknownDevice(udev_device* dev) {
if ((!disktypestring.upper().isNull()) && (disktype & TDEDiskDeviceType::HDD)) {
diskstatus = diskstatus & ~TDEDiskDeviceStatus::Mountable;
}
- if (sdevice->mediaInserted()) {
- diskstatus = diskstatus | TDEDiskDeviceStatus::Inserted;
+ if (removable) {
+ if (sdevice->mediaInserted()) {
+ diskstatus = diskstatus | TDEDiskDeviceStatus::Inserted;
+ }
+ else {
+ diskstatus = diskstatus & ~TDEDiskDeviceStatus::Mountable;
+ }
}
- else {
- diskstatus = diskstatus & ~TDEDiskDeviceStatus::Mountable;
+
+ if (holdingDeviceNodes.count() > 0) {
+ diskstatus = diskstatus | TDEDiskDeviceStatus::UsedByDevice;
+ }
+
+ if (slaveDeviceNodes.count() > 0) {
+ diskstatus = diskstatus | TDEDiskDeviceStatus::UsesDevice;
+ }
+
+ // See if any slaves were crypted
+ for ( TQStringList::Iterator slaveit = slaveDeviceNodes.begin(); slaveit != slaveDeviceNodes.end(); ++slaveit ) {
+ struct udev_device *slavedev;
+ slavedev = udev_device_new_from_syspath(m_udevStruct, (*slaveit).ascii());
+ TQString slavediskfstype(udev_device_get_property_value(slavedev, "ID_FS_TYPE"));
+ if ((slavediskfstype.upper() == "CRYPTO_LUKS") || (slavediskfstype.upper() == "CRYPTO")) {
+ disktype = disktype | TDEDiskDeviceType::UnlockedCrypt;
+ }
+ udev_device_unref(slavedev);
}
sdevice->setDiskType(disktype);
@@ -465,6 +544,8 @@ TDEGenericDevice* TDEHardwareDevices::classifyUnknownDevice(udev_device* dev) {
sdevice->setDiskStatus(diskstatus);
sdevice->setFileSystemName(filesystemtype);
sdevice->setFileSystemUsage(filesystemusage);
+ sdevice->setSlaveDevices(slaveDeviceNodes);
+ sdevice->setHoldingDevices(holdingDeviceNodes);
printf("DISK DEVICE name: %s type: %s subsystem: %s vendor: %s model: %s bus: %s label: %s filesystem: %s disk type: %s disk type flags: 0x%08x media inserted: %d [Node Path: %s] [Syspath: %s]\n\r\n\r", devicename.ascii(), devicetype.ascii(), devicesubsystem.ascii(), devicevendor.ascii(), devicemodel.ascii(), devicebus.ascii(), disklabel.ascii(), filesystemtype.ascii(), disktypestring.ascii(), disktype, sdevice->mediaInserted(), devicenode.ascii(), udev_device_get_syspath(dev)); fflush(stdout);
}
@@ -564,6 +645,8 @@ bool TDEHardwareDevices::queryHardwareInformation() {
if (device) {
m_deviceList.append(device);
}
+
+ udev_device_unref(dev);
}
// Free the enumerator object
diff --git a/tdecore/tdehardwaredevices.h b/tdecore/tdehardwaredevices.h
index e56217cbe..531106c36 100644
--- a/tdecore/tdehardwaredevices.h
+++ b/tdecore/tdehardwaredevices.h
@@ -21,6 +21,7 @@
// TDE includes
#include <tqstring.h>
#include <tqptrlist.h>
+#include <tqstringlist.h>
#include <tqtimer.h>
#include "tdelibs_export.h"
@@ -98,6 +99,7 @@ enum TDEDiskDeviceType {
MemoryStick = 0x04000000,
SmartMedia = 0x08000000,
SDMMC = 0x10000000,
+ UnlockedCrypt = 0x20000000,
Other = 0x80000000
};
@@ -123,6 +125,8 @@ enum TDEDiskDeviceStatus {
Removable = 0x00000002,
Inserted = 0x00000004,
Blank = 0x00000008,
+ UsedByDevice = 0x00000010,
+ UsesDevice = 0x00000020,
Other = 0x80000000
};
@@ -324,6 +328,26 @@ class TDECORE_EXPORT TDEStorageDevice : public TDEGenericDevice
void setFileSystemUsage(TQString fu);
/**
+ * @return a TQStringList containing system paths to all devices with a lock on this device, if any
+ */
+ TQStringList &holdingDevices();
+
+ /**
+ * @param a TQStringList containing system paths to all devices with a lock on this device, if any
+ */
+ void setHoldingDevices(TQStringList hd);
+
+ /**
+ * @return a TQStringList containing system paths to all devices locked by this device, if any
+ */
+ TQStringList &slaveDevices();
+
+ /**
+ * @param a TQStringList containing system paths to all devices locked by this device, if any
+ */
+ void setSlaveDevices(TQStringList sd);
+
+ /**
* @return a TQString with the mount path, if mounted
*/
TQString mountPath();
@@ -337,6 +361,8 @@ class TDECORE_EXPORT TDEStorageDevice : public TDEGenericDevice
TQString m_fileSystemUsage;
bool m_mediaInserted;
TQString m_mountPath;
+ TQStringList m_holdingDevices;
+ TQStringList m_slaveDevices;
};
typedef TQPtrList<TDEGenericDevice> TDEGenericHardwareList;