diff options
| -rw-r--r-- | src/Driver/Ntvol.c | 39 |
1 files changed, 27 insertions, 12 deletions
diff --git a/src/Driver/Ntvol.c b/src/Driver/Ntvol.c index b3e08747..8fda0bd9 100644 --- a/src/Driver/Ntvol.c +++ b/src/Driver/Ntvol.c @@ -84,7 +84,7 @@ NTSTATUS TCOpenVolume (PDEVICE_OBJECT DeviceObject, LARGE_INTEGER diskLengthInfo; DISK_GEOMETRY_EX dg; STORAGE_PROPERTY_QUERY storagePropertyQuery = {0}; - STORAGE_ACCESS_ALIGNMENT_DESCRIPTOR storageDescriptor = {0}; + STORAGE_DESCRIPTOR_HEADER storageHeader = {0}; ntStatus = IoGetDeviceObjectPointer (&FullFileName, FILE_READ_DATA | FILE_READ_ATTRIBUTES, @@ -100,20 +100,35 @@ NTSTATUS TCOpenVolume (PDEVICE_OBJECT DeviceObject, lDiskLength.QuadPart = dg.DiskSize.QuadPart; Extension->HostBytesPerSector = dg.Geometry.BytesPerSector; - - storagePropertyQuery.PropertyId = StorageAccessAlignmentProperty; - storagePropertyQuery.QueryType = PropertyStandardQuery; + Extension->HostBytesPerPhysicalSector = dg.Geometry.BytesPerSector; /* IOCTL_STORAGE_QUERY_PROPERTY supported only on Vista and above */ - if (NT_SUCCESS (TCSendHostDeviceIoControlRequestEx (DeviceObject, Extension, IOCTL_STORAGE_QUERY_PROPERTY, - (char*) &storagePropertyQuery, sizeof(storagePropertyQuery), - (char *) &storageDescriptor, sizeof (storageDescriptor)))) - { - Extension->HostBytesPerPhysicalSector = storageDescriptor.BytesPerPhysicalSector; - } - else + if (OsMajorVersion >= 6) { - Extension->HostBytesPerPhysicalSector = dg.Geometry.BytesPerSector; + storagePropertyQuery.PropertyId = StorageAccessAlignmentProperty; + storagePropertyQuery.QueryType = PropertyStandardQuery; + + if (NT_SUCCESS (TCSendHostDeviceIoControlRequestEx (DeviceObject, Extension, IOCTL_STORAGE_QUERY_PROPERTY, + (char*) &storagePropertyQuery, sizeof(storagePropertyQuery), + (char *) &storageHeader, sizeof (storageHeader)))) + { + byte* outputBuffer = TCalloc (storageHeader.Size); + if (!outputBuffer) + { + ntStatus = STATUS_INSUFFICIENT_RESOURCES; + goto error; + } + + if (NT_SUCCESS (TCSendHostDeviceIoControlRequestEx (DeviceObject, Extension, IOCTL_STORAGE_QUERY_PROPERTY, + (char*) &storagePropertyQuery, sizeof(storagePropertyQuery), + outputBuffer, storageHeader.Size))) + { + PSTORAGE_ACCESS_ALIGNMENT_DESCRIPTOR pStorageDescriptor = (PSTORAGE_ACCESS_ALIGNMENT_DESCRIPTOR) outputBuffer; + Extension->HostBytesPerPhysicalSector = pStorageDescriptor->BytesPerPhysicalSector; + } + + TCfree (outputBuffer); + } } // Drive geometry is used only when IOCTL_DISK_GET_PARTITION_INFO fails |