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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/Unix/CoreService.cpp
+20
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@@ -159,6 +159,18 @@ namespace VeraCrypt
continue;
}
#ifdef TC_LINUX
// EmergencyDismountVolumeRequest
EmergencyDismountVolumeRequest *emergencyDismountRequest = dynamic_cast <EmergencyDismountVolumeRequest*> (request.get());
if (emergencyDismountRequest)
{
DismountVolumeResponse response;
response.DismountedVolumeInfo = Core->EmergencyDismountVolume (emergencyDismountRequest->MountedVolumeInfo);
response.Serialize (outputStream);
continue;
}
#endif
// GetDeviceSectorSizeRequest
GetDeviceSectorSizeRequest *getDeviceSectorSizeRequest = dynamic_cast <GetDeviceSectorSizeRequest*> (request.get());
if (getDeviceSectorSizeRequest)
@@ -252,6 +264,14 @@ namespace VeraCrypt
return SendRequest <DismountVolumeResponse> (request)->DismountedVolumeInfo;
}
#ifdef TC_LINUX
shared_ptr <VolumeInfo> CoreService::RequestEmergencyDismountVolume (shared_ptr <VolumeInfo> mountedVolume)
{
EmergencyDismountVolumeRequest request (mountedVolume);
return SendRequest <DismountVolumeResponse> (request)->DismountedVolumeInfo;
}
#endif
uint32 CoreService::RequestGetDeviceSectorSize (const DevicePath &devicePath)
{
GetDeviceSectorSizeRequest request (devicePath);