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| author | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2018-08-18 11:13:20 +0200 |
|---|---|---|
| committer | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2018-08-18 16:47:23 +0200 |
| commit | 20889d4553a132cd8749a73853715fd3a0f237e5 (patch) | |
| tree | 59a10b0fff93d43fcde3cb0e1a0123939d5351d3 /src/Driver/Ntdriver.c | |
| parent | 2fea18c3f50599e0b51a731cc8f89a8d99c9df86 (diff) | |
| download | VeraCrypt-20889d4553a132cd8749a73853715fd3a0f237e5.tar.gz VeraCrypt-20889d4553a132cd8749a73853715fd3a0f237e5.zip | |
Windows: Implement workaround on Windows 10 to make VeraCrypt encrypted disks visible to Windows defragmenter
Diffstat (limited to 'src/Driver/Ntdriver.c')
| -rw-r--r-- | src/Driver/Ntdriver.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/src/Driver/Ntdriver.c b/src/Driver/Ntdriver.c index e7451a8f..6e774724 100644 --- a/src/Driver/Ntdriver.c +++ b/src/Driver/Ntdriver.c @@ -1263,8 +1263,10 @@ NTSTATUS ProcessVolumeDeviceControlIrp (PDEVICE_OBJECT DeviceObject, PEXTENSION case IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS: Dump ("ProcessVolumeDeviceControlIrp (IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS)\n"); - // Vista's filesystem defragmenter fails if IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS does not succeed. - if (!(OsMajorVersion == 6 && OsMinorVersion == 0)) + // Vista's and Windows 10 filesystem defragmenter fails if IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS does not succeed. + if (!(OsMajorVersion == 6 && OsMinorVersion == 0) + && !(OsMajorVersion == 10 && EnableExtendedIoctlSupport && Extension->bRawDevice) + ) { Irp->IoStatus.Status = STATUS_INVALID_DEVICE_REQUEST; Irp->IoStatus.Information = 0; @@ -1272,10 +1274,24 @@ NTSTATUS ProcessVolumeDeviceControlIrp (PDEVICE_OBJECT DeviceObject, PEXTENSION else if (ValidateIOBufferSize (Irp, sizeof (VOLUME_DISK_EXTENTS), ValidateOutput)) { VOLUME_DISK_EXTENTS *extents = (VOLUME_DISK_EXTENTS *) Irp->AssociatedIrp.SystemBuffer; + - // No extent data can be returned as this is not a physical drive. - memset (extents, 0, sizeof (*extents)); - extents->NumberOfDiskExtents = 0; + if (OsMajorVersion == 10) + { + // Windows 10 filesystem defragmenter works only if we report an extent with a real disk number + // So in the case of a VeraCrypt disk based volume, we use the disk number + // of the underlaying physical disk and we report a single extent + extents->NumberOfDiskExtents = 1; + extents->Extents[0].DiskNumber = Extension->DeviceNumber; + extents->Extents[0].StartingOffset.QuadPart = Extension->BytesPerSector; + extents->Extents[0].ExtentLength.QuadPart = Extension->DiskLength; + } + else + { + // Vista: No extent data can be returned as this is not a physical drive. + memset (extents, 0, sizeof (*extents)); + extents->NumberOfDiskExtents = 0; + } Irp->IoStatus.Status = STATUS_SUCCESS; Irp->IoStatus.Information = sizeof (*extents); |