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Linux: add emergency cleanup for stale unmounts

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When normal filesystem unmount fails, the Linux path could stop before cleaning VeraCrypt mapper, loop and FUSE objects. Add an explicit emergency dismount request that is only reached after interactive confirmation.

The recovery path lazy-detaches mounted filesystems, uses deferred dmsetup removal for VeraCrypt mapper devices, detaches loop devices, and keeps normal force/ignoreOpenFiles behavior unchanged.
This commit is contained in:
Mounir IDRASSI
2026-05-01 23:25:25 +09:00
parent 338fedc56c
commit abd089140b
60 changed files with 639 additions and 18 deletions
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src/Core/CoreBase.h
+3
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@@ -40,6 +40,9 @@ namespace VeraCrypt
virtual void CreateKeyfile (const FilePath &keyfilePath) const;
virtual void DismountFilesystem (const DirectoryPath &mountPoint, bool force) const = 0;
virtual shared_ptr <VolumeInfo> DismountVolume (shared_ptr <VolumeInfo> mountedVolume, bool ignoreOpenFiles = false, bool syncVolumeInfo = false) = 0;
#if defined(TC_LINUX)
virtual shared_ptr <VolumeInfo> EmergencyDismountVolume (shared_ptr <VolumeInfo> mountedVolume) { throw NotApplicable (SRC_POS); }
#endif
virtual bool FilesystemSupportsLargeFiles (const FilePath &filePath) const = 0;
virtual DirectoryPath GetDeviceMountPoint (const DevicePath &devicePath) const = 0;
virtual uint32 GetDeviceSectorSize (const DevicePath &devicePath) const = 0;