TDE
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tdelibs
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Fix a number of bugs in the TDE hardware library and stabilize device mapper device detection

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pull/16/head
Timothy Pearson 13 years ago
parent c7e94c427a
commit 4e0646cb8c
2 changed files with 94 additions and 23 deletions
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100
tdecore/tdehardwaredevices.cpp
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@ -178,7 +178,7 @@ TQStringList &TDEStorageDevice::holdingDevices() {
}
void TDEStorageDevice::setHoldingDevices(TQStringList hd) {
m_slaveDevices = hd;
m_holdingDevices = hd;
}
TQStringList &TDEStorageDevice::slaveDevices() {
@ -258,6 +258,10 @@ TQString TDEStorageDevice::mountPath() {
// 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
// First, ensure that all device information (mainly holders/slaves) is accurate
KGlobal::hardwareDevices()->rescanDeviceInformation(this);
TQString dmnodename = systemPath();
dmnodename.append("/dm/name");
TQFile namefile( dmnodename );
@ -279,7 +283,9 @@ TQString TDEStorageDevice::mountPath() {
while ( !stream.atEnd() ) {
line = stream.readLine();
TQStringList mountInfo = TQStringList::split(" ", line, true);
if ((*mountInfo.at(0) == deviceNode()) || (*mountInfo.at(0) == dmaltname)) {
TQString testNode = *mountInfo.at(0);
// Check for match
if ((testNode == deviceNode()) || (testNode == dmaltname)) {
return *mountInfo.at(1);
}
lines += line;
@ -289,7 +295,7 @@ TQString TDEStorageDevice::mountPath() {
// 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();
TQStringList slaveDeviceList = holdingDevices();
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();
@ -330,15 +336,15 @@ TQString TDEStorageDevice::mountDevice(TQString mediaName, TQString mountOptions
char buffer[8092];
pmount_output = fgets(buffer, sizeof(buffer), exepipe);
*retcode = pclose(exepipe);
if (*retcode == 0) {
ret = mountPath();
}
else {
if (errRet) {
*errRet = pmount_output;
}
}
}
// Update internal mount data
KGlobal::hardwareDevices()->processModifiedMounts();
ret = mountPath();
return ret;
}
@ -377,15 +383,15 @@ TQString TDEStorageDevice::mountEncryptedDevice(TQString passphrase, TQString me
char buffer[8092];
pmount_output = fgets(buffer, sizeof(buffer), exepipe);
*retcode = pclose(exepipe);
if (*retcode == 0) {
ret = mountPath();
}
else {
if (errRet) {
*errRet = pmount_output;
}
}
}
// Update internal mount data
KGlobal::hardwareDevices()->processModifiedMounts();
ret = mountPath();
return ret;
}
@ -419,6 +425,9 @@ bool TDEStorageDevice::unmountDevice(TQString* errRet, int* retcode) {
}
}
// Update internal mount data
KGlobal::hardwareDevices()->processModifiedMounts();
return false;
}
@ -471,6 +480,13 @@ TDEHardwareDevices::~TDEHardwareDevices() {
udev_unref(m_udevStruct);
}
void TDEHardwareDevices::rescanDeviceInformation(TDEGenericDevice* hwdevice) {
struct udev_device *dev;
dev = udev_device_new_from_syspath(m_udevStruct, hwdevice->systemPath().ascii());
classifyUnknownDevice(dev, hwdevice);
udev_device_unref(dev);
}
TDEGenericDevice* TDEHardwareDevices::findBySystemPath(TQString syspath) {
TDEGenericDevice *hwdevice;
for ( hwdevice = m_deviceList.first(); hwdevice; hwdevice = m_deviceList.next() ) {
@ -536,7 +552,24 @@ void TDEHardwareDevices::processHotPluggedHardware() {
for (hwdevice = m_deviceList.first(); hwdevice; hwdevice = m_deviceList.next()) {
if (hwdevice->systemPath() == systempath) {
emit hardwareRemoved(hwdevice);
// If the device is a storage device and has a slave, update it as well
if (hwdevice->type() == TDEGenericDeviceType::Disk) {
TDEStorageDevice* sdevice = static_cast<TDEStorageDevice*>(hwdevice);
TQStringList slavedevices = sdevice->slaveDevices();
m_deviceList.remove(hwdevice);
for ( TQStringList::Iterator slaveit = slavedevices.begin(); slaveit != slavedevices.end(); ++slaveit ) {
TDEGenericDevice* slavedevice = findBySystemPath(*slaveit);
if (slavedevice) {
rescanDeviceInformation(slavedevice);
emit hardwareUpdated(slavedevice);
}
}
}
else {
m_deviceList.remove(hwdevice);
}
break;
}
}
@ -547,8 +580,20 @@ void TDEHardwareDevices::processHotPluggedHardware() {
TDEGenericDevice *hwdevice;
for (hwdevice = m_deviceList.first(); hwdevice; hwdevice = m_deviceList.next()) {
if (hwdevice->systemPath() == systempath) {
// HACK
// I am lucky enough to have a Flash drive that spams udev continually with device change events
// I imagine I am not the only one, so here is a section in which specific devices can be blacklisted!
bool blacklisted = false;
// For "U3 System" fake CD
if ((TQString(udev_device_get_property_value(dev, "ID_VENDOR_ID")) == "08ec") && (TQString(udev_device_get_property_value(dev, "ID_MODEL_ID")) == "0020") && (TQString(udev_device_get_property_value(dev, "ID_TYPE")) == "cd")); {
blacklisted = true;
}
if (!blacklisted) {
classifyUnknownDevice(dev, hwdevice);
// emit hardwareUpdated(hwdevice); // FIXME certain devices (***cough U3 system fake CD cough*** spam this quite badly, locking up anything monitoring hardwareUpdated()
emit hardwareUpdated(hwdevice);
}
break;
}
}
@ -557,7 +602,6 @@ void TDEHardwareDevices::processHotPluggedHardware() {
}
void TDEHardwareDevices::processModifiedMounts() {
// FIXME
// Detect what changed between the old mount table and the new one,
// and emit appropriate events
@ -602,7 +646,7 @@ void TDEHardwareDevices::processModifiedMounts() {
if (hwdevice->type() == TDEGenericDeviceType::Disk) {
TDEStorageDevice* sdevice = static_cast<TDEStorageDevice*>(hwdevice);
TQStringList slavedevices = sdevice->slaveDevices();
for ( TQStringList::Iterator slaveit = addedEntries.begin(); slaveit != addedEntries.end(); ++slaveit ) {
for ( TQStringList::Iterator slaveit = slavedevices.begin(); slaveit != slavedevices.end(); ++slaveit ) {
TDEGenericDevice* slavedevice = findBySystemPath(*slaveit);
if (slavedevice) {
emit hardwareUpdated(slavedevice);
@ -621,7 +665,7 @@ void TDEHardwareDevices::processModifiedMounts() {
if (hwdevice->type() == TDEGenericDeviceType::Disk) {
TDEStorageDevice* sdevice = static_cast<TDEStorageDevice*>(hwdevice);
TQStringList slavedevices = sdevice->slaveDevices();
for ( TQStringList::Iterator slaveit = addedEntries.begin(); slaveit != addedEntries.end(); ++slaveit ) {
for ( TQStringList::Iterator slaveit = slavedevices.begin(); slaveit != slavedevices.end(); ++slaveit ) {
TDEGenericDevice* slavedevice = findBySystemPath(*slaveit);
if (slavedevice) {
emit hardwareUpdated(slavedevice);
@ -701,6 +745,12 @@ TDEDiskDeviceType::TDEDiskDeviceType classifyDiskType(udev_device* dev, const TQ
disktype = disktype | TDEDiskDeviceType::HDD;
}
// Certain combinations of media flags should never be set at the same time as they don't make sense
// This block is needed as udev is more than happy to provide inconsistent data to us
if ((disktype & TDEDiskDeviceType::Zip) || (disktype & TDEDiskDeviceType::Floppy) || (disktype & TDEDiskDeviceType::Jaz)) {
disktype = disktype & ~TDEDiskDeviceType::HDD;
}
if (disktypestring.upper() == "CD") {
if (TQString(udev_device_get_property_value(dev, "ID_CDROM_MEDIA")) == "1") {
disktype = disktype | TDEDiskDeviceType::CDROM;
@ -867,6 +917,22 @@ TDEGenericDevice* TDEHardwareDevices::classifyUnknownDevice(udev_device* dev, TD
sdevice->setMediaInserted(!(TQString(udev_device_get_property_value(dev, "ID_CDROM_MEDIA")) == "0"));
}
if (disktype & TDEDiskDeviceType::Zip) {
// A Zip drive does not advertise its status via udev, but it can be guessed from the size parameter
TQString zipnodename = systempath;
zipnodename.append("/size");
TQFile namefile( zipnodename );
TQString zipsize;
if ( namefile.open( IO_ReadOnly ) ) {
TQTextStream stream( &namefile );
zipsize = stream.readLine();
namefile.close();
}
if (!zipsize.isNull()) {
sdevice->setMediaInserted((zipsize.toInt() != 0));
}
}
if (removable) {
diskstatus = diskstatus | TDEDiskDeviceStatus::Removable;
}

5
tdecore/tdehardwaredevices.h
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@ -493,6 +493,9 @@ class TDECORE_EXPORT TDEHardwareDevices : public TQObject
void processHotPluggedHardware();
void processModifiedMounts();
private:
void rescanDeviceInformation(TDEGenericDevice* hwdevice);
private:
TDEGenericDevice *classifyUnknownDevice(udev_device* dev, TDEGenericDevice* existingdevice=0);
@ -505,6 +508,8 @@ class TDECORE_EXPORT TDEHardwareDevices : public TQObject
TQSocketNotifier* m_mountScanNotifier;
TQStringList m_mountTable;
friend class TDEStorageDevice;
};
#endif
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