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Windows: use IOCTL_DISK_GET_DRIVE_GEOMETRY_EX instead of the deprecated IOCTL_DISK_GET_DRIVE_GEOMETRY in order to get accurate disk size value.

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This commit is contained in:
Mounir IDRASSI
2017-05-15 16:22:48 +02:00
parent ce4e7fd64d
commit 74b82118d5
13 changed files with 133 additions and 83 deletions
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10
src/Driver/Ntvol.c
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@@ -82,7 +82,7 @@ NTSTATUS TCOpenVolume (PDEVICE_OBJECT DeviceObject,
PARTITION_INFORMATION pi;
PARTITION_INFORMATION_EX pix;
LARGE_INTEGER diskLengthInfo;
DISK_GEOMETRY dg;
DISK_GEOMETRY_EX dg;
STORAGE_PROPERTY_QUERY storagePropertyQuery = {0};
STORAGE_ACCESS_ALIGNMENT_DESCRIPTOR storageDescriptor = {0};
@@ -94,12 +94,12 @@ NTSTATUS TCOpenVolume (PDEVICE_OBJECT DeviceObject,
if (!NT_SUCCESS (ntStatus))
goto error;
ntStatus = TCSendHostDeviceIoControlRequest (DeviceObject, Extension, IOCTL_DISK_GET_DRIVE_GEOMETRY, (char *) &dg, sizeof (dg));
ntStatus = TCSendHostDeviceIoControlRequest (DeviceObject, Extension, IOCTL_DISK_GET_DRIVE_GEOMETRY_EX, (char *) &dg, sizeof (dg));
if (!NT_SUCCESS (ntStatus))
goto error;
lDiskLength.QuadPart = dg.Cylinders.QuadPart * dg.SectorsPerTrack * dg.TracksPerCylinder * dg.BytesPerSector;
Extension->HostBytesPerSector = dg.BytesPerSector;
lDiskLength.QuadPart = dg.DiskSize.QuadPart;
Extension->HostBytesPerSector = dg.Geometry.BytesPerSector;
storagePropertyQuery.PropertyId = StorageAccessAlignmentProperty;
storagePropertyQuery.QueryType = PropertyStandardQuery;
@@ -113,7 +113,7 @@ NTSTATUS TCOpenVolume (PDEVICE_OBJECT DeviceObject,
}
else
{
Extension->HostBytesPerPhysicalSector = dg.BytesPerSector;
Extension->HostBytesPerPhysicalSector = dg.Geometry.BytesPerSector;
}
// Drive geometry is used only when IOCTL_DISK_GET_PARTITION_INFO fails