public StorageDeviceNumber GetDeviceNumber(SafeHandle hDevice)
{
StorageDeviceNumber deviceNumber = new StorageDeviceNumber();
SafeAllocHandle <STORAGE_DEVICE_NUMBER> storageDeviceNumberPtr = null;
try {
storageDeviceNumberPtr = new SafeAllocHandle <STORAGE_DEVICE_NUMBER>();
bool success = DeviceIoControl(hDevice, IOCTL_STORAGE_GET_DEVICE_NUMBER, IntPtr.Zero, 0,
storageDeviceNumberPtr, storageDeviceNumberPtr.SizeOf, out uint bytesReturns, IntPtr.Zero);
if (!success || bytesReturns == 0)
{
m_Win32Error = Marshal.GetLastWin32Error();
return(null);
}
STORAGE_DEVICE_NUMBER storageDeviceNumber = storageDeviceNumberPtr.ToStructure();
deviceNumber.DeviceType = storageDeviceNumber.DeviceType;
deviceNumber.DeviceNumber = storageDeviceNumber.DeviceNumber;
deviceNumber.PartitionNumber = storageDeviceNumber.PartitionNumber;
} finally {
if (storageDeviceNumberPtr != null)
{
storageDeviceNumberPtr.Close();
}
}
return(deviceNumber);
}
/// <summary>
/// Determins the device number
/// </summary>
/// <param name="devicePath">Device path</param>
/// <returns>The Device number</returns>
private static int GetDeviceNumber(string devicePath)
{
int ans = -1;
IntPtr h = CreateFile(devicePath, 0, 0, IntPtr.Zero, OPEN_EXISTING, 0, IntPtr.Zero);
if (h.ToInt32() != INVALID_HANDLE_VALUE)
{
int requiredSize;
STORAGE_DEVICE_NUMBER Sdn = new STORAGE_DEVICE_NUMBER();
int nBytes = Marshal.SizeOf(Sdn);
IntPtr ptrSdn = Marshal.AllocHGlobal(nBytes);
if (DeviceIoControl(h, IOCTL_STORAGE_GET_DEVICE_NUMBER, null, 0, ptrSdn, nBytes, out requiredSize,
IntPtr.Zero))
{
Sdn = (STORAGE_DEVICE_NUMBER)Marshal.PtrToStructure(ptrSdn, typeof(STORAGE_DEVICE_NUMBER));
// just my way of combining the relevant parts of the
// STORAGE_DEVICE_NUMBER into a single number
ans = (Sdn.DeviceType << 8) + Sdn.DeviceNumber;
}
Marshal.FreeHGlobal(ptrSdn);
CloseHandle(h);
}
return(ans);
}
static long GetDeviceNumber(IntPtr handle)
{
// get the volume's device number
long DeviceNumber = -1;
int size = 0x400; // some big size
IntPtr buffer = Marshal.AllocHGlobal(size);
int bytesReturned = 0;
try
{
DeviceIoControl(handle, IOCTL_STORAGE_GET_DEVICE_NUMBER, IntPtr.Zero, 0, buffer, size, out bytesReturned, IntPtr.Zero);
}
finally
{
CloseHandle(handle);
}
if (bytesReturned > 0)
{
STORAGE_DEVICE_NUMBER sdn = (STORAGE_DEVICE_NUMBER)Marshal.PtrToStructure(buffer, typeof(STORAGE_DEVICE_NUMBER));
DeviceNumber = sdn.DeviceNumber;
}
Marshal.FreeHGlobal(buffer);
return(DeviceNumber);
}
public static string GetRemovableDriveDeviceId(DriveType driveType, STORAGE_DEVICE_NUMBER deviceNumber)
{
string deviceId = "";
var foundItem = GetRemovableDriveDeviceIds(driveType, deviceNumber.DeviceType).Find(x => x.StorageDeviceNumber.DeviceNumber == deviceNumber.DeviceNumber);
if (!default(StorageDeviceInfo).Equals(foundItem))
{
deviceId = foundItem.InstanceID;
}
return(deviceId);
}
public static (uint DeviceType, uint DeviceNumber) QueryDeviceNumber(SafeHandle handle)
{
STORAGE_DEVICE_NUMBER deviceNumber = default;
uint bytesReturned = 0;
if (NativeMethods.DeviceIoControl(handle, StorageCommand.IOCTL_STORAGE_GET_DEVICE_NUMBER, IntPtr.Zero, 0, ref deviceNumber,
Marshal.SizeOf <STORAGE_DEVICE_NUMBER>(), out bytesReturned, IntPtr.Zero))
{
return(deviceNumber.DeviceType, deviceNumber.DeviceNumber);
}
return(UInt32.MaxValue, UInt32.MaxValue);
}
public static uint GetDiskDeviceNumber(SafeFileHandle deviceHandle)
{
var storageDeviceNumber = new STORAGE_DEVICE_NUMBER();
if (!IoctlStorageGetDeviceNumber(deviceHandle, storageDeviceNumber))
{
throw new Win32Exception();
}
if (storageDeviceNumber.deviceType != DeviceType.FILE_DEVICE_DISK)
{
throw new Exception($"Expected FILE_DEVICE_DISK. Got '{storageDeviceNumber.deviceType}'.");
}
return(storageDeviceNumber.deviceNumber);
}
public static string GetDeviceFromDrive(System.IO.DriveInfo driveInfo)
{
IntPtr pStorageDeviceNumber = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(STORAGE_DEVICE_NUMBER)));
SafeFileHandle hDrive = null;
try {
string driveName = "\\\\.\\" + driveInfo.ToString().Substring(0, 2);
hDrive = ApiFunctions.CreateFile(driveName, AccessMask.GENERIC_READ,
System.IO.FileShare.ReadWrite, 0, System.IO.FileMode.Open, 0, IntPtr.Zero);
if (hDrive.IsInvalid)
{
throw new FileLoadException("Drive handle invalid");
}
bool status;
int retByte;
System.Threading.NativeOverlapped nativeOverlap = new System.Threading.NativeOverlapped();
status = ApiFunctions.DeviceIoControl(hDrive, DeviceIOControlCode.StorageGetDeviceNumber, IntPtr.Zero, 0,
pStorageDeviceNumber, Marshal.SizeOf(typeof(STORAGE_DEVICE_NUMBER)), out retByte, ref nativeOverlap);
if (!status)
{
throw new FileLoadException("DeviceIoControl error");
}
STORAGE_DEVICE_NUMBER storDevNum = (STORAGE_DEVICE_NUMBER)Marshal.PtrToStructure(pStorageDeviceNumber, typeof(STORAGE_DEVICE_NUMBER));
return("\\\\.\\PhysicalDrive" + storDevNum.DeviceNumber);
}
finally {
Marshal.FreeHGlobal(pStorageDeviceNumber);
if (hDrive != null)
{
hDrive.Close();
}
}
}
/// <summary>
/// Determins the device number
/// </summary>
/// <param name="devicePath">Device path</param>
/// <returns>The Device number</returns>
private static int GetDeviceNumber(string devicePath)
{
int ans = -1;
IntPtr h = CreateFile(devicePath, 0, 0, IntPtr.Zero, OPEN_EXISTING, 0, IntPtr.Zero);
if (h.ToInt32() != INVALID_HANDLE_VALUE)
{
int requiredSize;
STORAGE_DEVICE_NUMBER Sdn = new STORAGE_DEVICE_NUMBER();
int nBytes = Marshal.SizeOf(Sdn);
IntPtr ptrSdn = Marshal.AllocHGlobal(nBytes);
if (DeviceIoControl(h, IOCTL_STORAGE_GET_DEVICE_NUMBER, null, 0, ptrSdn, nBytes, out requiredSize,
IntPtr.Zero))
{
Sdn = (STORAGE_DEVICE_NUMBER)Marshal.PtrToStructure(ptrSdn, typeof (STORAGE_DEVICE_NUMBER));
// just my way of combining the relevant parts of the
// STORAGE_DEVICE_NUMBER into a single number
ans = (Sdn.DeviceType << 8) + Sdn.DeviceNumber;
}
Marshal.FreeHGlobal(ptrSdn);
CloseHandle(h);
}
return ans;
}
public static extern bool DeviceIoControl(
SafeHandle handle, StorageCommand command,
IntPtr inData, int querySize,
ref STORAGE_DEVICE_NUMBER outData, int outDataSize,
out uint bytesReturned, IntPtr overlapped);
/// <summary>
/// Constructor.
/// </summary>
/// <param name="rootPath">The volume's drive letter (for example, X:\) or the path of a mounted folder
/// that is associated with the volume.</param>
/// <param name="label">The label of a file system volume.</param>
/// <param name="deviceInfo">Information about the device.</param>
public VolumeInfo(string rootPath, string label, STORAGE_DEVICE_NUMBER deviceInfo)
{
RootPath = rootPath;
Label = label;
DeviceInfo = deviceInfo;
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="rootPath">The volume's drive letter (for example, X:\) or the path of a mounted folder
/// that is associated with the volume.</param>
/// <param name="label">The label of a file system volume.</param>
/// <param name="deviceInfo">Information about the device.</param>
public VolumeInfo(string rootPath, string label, STORAGE_DEVICE_NUMBER deviceInfo)
{
RootPath = rootPath;
Label = label;
DeviceInfo = deviceInfo;
}
public static extern bool DeviceIoControl(IntPtr deviceHandle, IO_CONTROL_CODE controlCode, IntPtr inBuffer, uint inBufferSize, ref STORAGE_DEVICE_NUMBER outBuffer, uint outBufferSize, ref uint bytesReturned, IntPtr overlapped);
public static extern bool DeviceIoControl(IntPtr hDevice, uint dwIoControlCode, IntPtr lpInBuffer, uint nInBufferSize, ref STORAGE_DEVICE_NUMBER lpOutBuffer, uint nOutBufferSize, ref uint lpBytesReturned, IntPtr lpOverlapped);
static extern bool IoctlStorageGetDeviceNumber(SafeFileHandle handle, STORAGE_DEVICE_NUMBER storageDeviceNumber);