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authorAlexander Golubev <fatzer2@gmail.com>2023-12-19 21:20:24 +0300
committerMichele Calgaro <michele.calgaro@yahoo.it>2023-12-28 10:18:39 +0900
commit14573faf07515b472f86dff585bd8a14fa1f25d7 (patch)
tree87a170a043a8246ed3ff58722e9904aa5469494c /tdecore
parentd5688771d8a6837975be512ee37f61bad7dbd345 (diff)
downloadtdelibs-14573faf07515b472f86dff585bd8a14fa1f25d7.tar.gz
tdelibs-14573faf07515b472f86dff585bd8a14fa1f25d7.zip
Fix lvm volumes appearing as removable devices
- remove obsolete/erroneous code meddling with GENHD_FL_MEDIA_CHANGE_NOTIFY - use /sys/block/<dev>/removable rather than /sys/block/<dev>/capabilities - deprecate TDEDiskDeviceStatus::Hotpluggable and use TDEDiskDeviceStatus::Removable for all removable devices - put some local utility function into anonymous namespace See https://mirror.git.trinitydesktop.org/gitea/TDE/tde/issues/148 Signed-off-by: Alexander Golubev <fatzer2@gmail.com>
Diffstat (limited to 'tdecore')
-rw-r--r--tdecore/tdehw/tdehardwaredevices.cpp73
-rw-r--r--tdecore/tdehw/tdestoragedevice.cpp6
-rw-r--r--tdecore/tdehw/tdestoragedevice.h3
3 files changed, 26 insertions, 56 deletions
diff --git a/tdecore/tdehw/tdehardwaredevices.cpp b/tdecore/tdehw/tdehardwaredevices.cpp
index 70a7b7c45..39f57451b 100644
--- a/tdecore/tdehw/tdehardwaredevices.cpp
+++ b/tdecore/tdehw/tdehardwaredevices.cpp
@@ -89,22 +89,13 @@ timespec diff(timespec start, timespec end)
return temp;
}
-// BEGIN BLOCK
-// Copied from include/linux/genhd.h
-#define GENHD_FL_REMOVABLE 1
-#define GENHD_FL_MEDIA_CHANGE_NOTIFY 4
-#define GENHD_FL_CD 8
-#define GENHD_FL_UP 16
-#define GENHD_FL_SUPPRESS_PARTITION_INFO 32
-#define GENHD_FL_EXT_DEVT 64
-#define GENHD_FL_NATIVE_CAPACITY 128
-#define GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE 256
-// END BLOCK
-
// NOTE TO DEVELOPERS
// This command will greatly help when attempting to find properties to distinguish one device from another
// udevadm info --query=all --path=/sys/....
+// Some local utility functions and constants
+namespace {
+
// This routine is courtsey of an answer on "Stack Overflow"
// It takes an LSB-first int and makes it an MSB-first int (or vice versa)
unsigned int reverse_bits(unsigned int x)
@@ -116,6 +107,19 @@ unsigned int reverse_bits(unsigned int x)
return((x >> 16) | (x << 16));
}
+// Read the content of a file that supposed to contain a single line
+TQString readLineFile(TQString fname) {
+ TQFile file( fname );
+ if ( file.open( IO_ReadOnly ) ) {
+ TQTextStream stream( &file );
+ return stream.readLine();
+ } else {
+ return TQString::null;
+ }
+}
+
+} // namespace
+
// Helper function implemented in tdestoragedevice.cpp
TQString decodeHexEncoding(TQString str);
@@ -2511,36 +2515,6 @@ void TDEHardwareDevices::updateExistingDeviceInformation(TDEGenericDevice *devic
sdevice->internalSetFileSystemName("pictbridge");
}
else {
- bool removable = false;
- bool hotpluggable = false;
-
- // We can get the removable flag, but we have no idea if the device has the ability to notify on media insertion/removal
- // If there is no such notification possible, then we should not set the removable flag
- // udev can be such an amazing pain at times
- // It exports a /capabilities node with no info on what the bits actually mean
- // This information is very poorly documented as a set of #defines in include/linux/genhd.h
- // We are specifically interested in GENHD_FL_REMOVABLE and GENHD_FL_MEDIA_CHANGE_NOTIFY
- // The "removable" flag should also really be renamed to "hotpluggable", as that is far more precise...
- TQString capabilitynodename = systempath;
- capabilitynodename.append("/capability");
- TQFile capabilityfile( capabilitynodename );
- unsigned int capabilities = 0;
- if ( capabilityfile.open( IO_ReadOnly ) ) {
- TQTextStream stream( &capabilityfile );
- TQString capabilitystring;
- capabilitystring = stream.readLine();
- capabilities = capabilitystring.toUInt();
- capabilityfile.close();
- }
- if (capabilities & GENHD_FL_REMOVABLE) {
- // FIXME
- // For added fun this is not always true; i.e. GENHD_FL_REMOVABLE can be set when the device cannot be hotplugged (floppy drives).
- hotpluggable = true;
- }
- if (capabilities & GENHD_FL_MEDIA_CHANGE_NOTIFY) {
- removable = true;
- }
-
// See if any other devices are exclusively using this device, such as the Device Mapper
TQStringList holdingDeviceNodes;
TQString holdersnodename = udev_device_get_syspath(dev);
@@ -2733,21 +2707,16 @@ void TDEHardwareDevices::updateExistingDeviceInformation(TDEGenericDevice *devic
}
}
- if (removable) {
+ if (readLineFile( systempath + "/removable" ).toUInt()) {
diskstatus = diskstatus | TDEDiskDeviceStatus::Removable;
}
- if (hotpluggable) {
- diskstatus = diskstatus | TDEDiskDeviceStatus::Hotpluggable;
- }
// Force removable flag for flash disks
// udev reports disks as non-removable for card readers on PCI controllers
- if (((disktype & TDEDiskDeviceType::CompactFlash)
+ else if ((disktype & TDEDiskDeviceType::CompactFlash)
|| (disktype & TDEDiskDeviceType::MemoryStick)
|| (disktype & TDEDiskDeviceType::SmartMedia)
- || (disktype & TDEDiskDeviceType::SDMMC))
- && !(diskstatus & TDEDiskDeviceStatus::Removable)
- && !(diskstatus & TDEDiskDeviceStatus::Hotpluggable)) {
- diskstatus = diskstatus | TDEDiskDeviceStatus::Hotpluggable;
+ || (disktype & TDEDiskDeviceType::SDMMC)) {
+ diskstatus = diskstatus | TDEDiskDeviceStatus::Removable;
}
if ((!filesystemtype.isEmpty()) && (filesystemtype.upper() != "CRYPTO_LUKS") &&
@@ -2765,7 +2734,7 @@ void TDEHardwareDevices::updateExistingDeviceInformation(TDEGenericDevice *devic
// type string too. For example for LUKS disk, ID_TYPE is null and DEVTYPE is "disk"
diskstatus = diskstatus & ~TDEDiskDeviceStatus::Mountable;
}
- if (removable) {
+ if ( diskstatus & TDEDiskDeviceStatus::Removable ) {
if (sdevice->mediaInserted()) {
diskstatus = diskstatus | TDEDiskDeviceStatus::Inserted;
}
diff --git a/tdecore/tdehw/tdestoragedevice.cpp b/tdecore/tdehw/tdestoragedevice.cpp
index 08fb246e1..df5f90ab7 100644
--- a/tdecore/tdehw/tdestoragedevice.cpp
+++ b/tdecore/tdehw/tdestoragedevice.cpp
@@ -504,7 +504,7 @@ TQString TDEStorageDevice::friendlyName() {
TQString label = diskLabel();
if (label.isNull()) {
if (deviceSize() > 0) {
- if (checkDiskStatus(TDEDiskDeviceStatus::Hotpluggable)) {
+ if (checkDiskStatus(TDEDiskDeviceStatus::Removable)) {
label = i18n("%1 Removable Device").arg(deviceFriendlySize());
}
else {
@@ -561,7 +561,7 @@ TQString TDEStorageDevice::friendlyDeviceType() {
if (isDiskOfType(TDEDiskDeviceType::HDD)) {
ret = i18n("Hard Disk Drive");
- if (checkDiskStatus(TDEDiskDeviceStatus::Hotpluggable)) {
+ if (checkDiskStatus(TDEDiskDeviceStatus::Removable)) {
ret = i18n("Removable Storage");
}
if (isDiskOfType(TDEDiskDeviceType::CompactFlash)) {
@@ -632,7 +632,7 @@ TQPixmap TDEStorageDevice::icon(TDEIcon::StdSizes size) {
if (isDiskOfType(TDEDiskDeviceType::HDD)) {
ret = DesktopIcon("drive-harddisk" + mountString, size);
- if (checkDiskStatus(TDEDiskDeviceStatus::Hotpluggable)) {
+ if (checkDiskStatus(TDEDiskDeviceStatus::Removable)) {
ret = DesktopIcon("media-flash-usb" + mountString, size);
}
if (isDiskOfType(TDEDiskDeviceType::CompactFlash)) {
diff --git a/tdecore/tdehw/tdestoragedevice.h b/tdecore/tdehw/tdestoragedevice.h
index c279586f8..a16bf978b 100644
--- a/tdecore/tdehw/tdestoragedevice.h
+++ b/tdecore/tdehw/tdestoragedevice.h
@@ -22,6 +22,7 @@
#include "tdegenericdevice.h"
#include "tqvariant.h"
+#include "kdemacros.h"
struct crypt_device;
@@ -107,7 +108,7 @@ enum TDEDiskDeviceStatus {
UsedByDevice = 0x00000010,
UsesDevice = 0x00000020,
ContainsFilesystem = 0x00000040,
- Hotpluggable = 0x00000080,
+ Hotpluggable KDE_DEPRECATED = 0x00000080 , //< @deprecated; use Removable instead
Hidden = 0x00000100,
Other = 0x80000000
};