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();
}
}
}
public void Eject()
{
string driveName = "\\\\.\\" + drive.ToString().Substring(0, 2);
SafeFileHandle hDrive = ApiFunctions.CreateFile(driveName,
AccessMask.GENERIC_READ, System.IO.FileShare.ReadWrite, 0,
System.IO.FileMode.Open, 0, IntPtr.Zero);
if (hDrive.IsInvalid)
{
throw new DeviceException(host, "Failed to eject device, could not open drive");
}
int retByte;
NativeOverlapped nativeOverlap = new NativeOverlapped();
bool status = ApiFunctions.DeviceIoControl(hDrive, DeviceIOControlCode.StorageEjectMedia,
IntPtr.Zero, 0, IntPtr.Zero, 0, out retByte, ref nativeOverlap);
if (!status)
{
throw new DeviceException(host, "Failed to eject device, DeviceIoControl returned false");
}
}
private byte [] GetWin32XML(IDevice Ipod)
{
IntPtr pSptwb = IntPtr.Zero;
SafeFileHandle driveHandle = null;
try {
ScsiPassThroughWithBuffers sptwb;
int returned, length;
string device = GetDeviceFromDrive(((Win32.Device)Ipod).Drive);
bool status;
byte [] buffer = new byte [102400];
int bufferIdx = 0;
byte page_code, page_start, page_end = 0;
driveHandle = ApiFunctions.CreateFile(device, AccessMask.GENERIC_ALL,
System.IO.FileShare.ReadWrite, 0, System.IO.FileMode.Open, 0, IntPtr.Zero);
if (driveHandle.IsInvalid)
{
throw new FileLoadException("Device invalid");
}
sptwb = new ScsiPassThroughWithBuffers();
sptwb.spt.Length = (ushort)Marshal.SizeOf(typeof(SCSI_PASS_THROUGH));
sptwb.spt.PathId = 0;
sptwb.spt.TargetId = 1;
sptwb.spt.Lun = 0;
sptwb.spt.CdbLength = 6;
sptwb.spt.SenseInfoLength = 32;
sptwb.spt.DataIn = 1; //SCSI_IOCTL_DATA_IN
sptwb.spt.DataTransferLength = 255;
sptwb.spt.TimeOutValue = 2;
sptwb.spt.DataBufferOffset = Marshal.OffsetOf(typeof(ScsiPassThroughWithBuffers), "ucDataBuf");
sptwb.spt.SenseInfoOffset = Marshal.OffsetOf(typeof(ScsiPassThroughWithBuffers), "ucSenseBuf");
sptwb.spt.Cdb = new byte [16];
sptwb.spt.Cdb [0] = 0x12; //SCSI_INQUIRY
sptwb.spt.Cdb [1] |= 1;
sptwb.spt.Cdb [2] = 0xC0;
sptwb.spt.Cdb [4] = 255;
length = Marshal.OffsetOf(typeof(ScsiPassThroughWithBuffers), "ucDataBuf").ToInt32()
+ (int)sptwb.spt.DataTransferLength;
pSptwb = Marshal.AllocHGlobal(Marshal.SizeOf(sptwb));
Marshal.StructureToPtr(sptwb, pSptwb, true);
System.Threading.NativeOverlapped nativeOverlapped = new System.Threading.NativeOverlapped();
status = ApiFunctions.DeviceIoControl(driveHandle, DeviceIOControlCode.ScsiPassThrough,
pSptwb, Marshal.SizeOf(typeof(SCSI_PASS_THROUGH)), pSptwb, length, out returned, ref nativeOverlapped);
if (!status)
{
throw new FileLoadException("DeviceIoControl Error", Marshal.GetExceptionForHR(Marshal.GetHRForLastWin32Error()));
}
sptwb = (ScsiPassThroughWithBuffers)Marshal.PtrToStructure(pSptwb, typeof(ScsiPassThroughWithBuffers));
page_start = sptwb.ucDataBuf [4];
page_end = sptwb.ucDataBuf [3 + sptwb.ucDataBuf [3]];
for (page_code = page_start; page_code <= page_end; page_code++)
{
sptwb.spt.Length = (ushort)Marshal.SizeOf(typeof(SCSI_PASS_THROUGH));
sptwb.spt.PathId = 0;
sptwb.spt.TargetId = 1;
sptwb.spt.Lun = 0;
sptwb.spt.CdbLength = 6;
sptwb.spt.SenseInfoLength = 32;
sptwb.spt.DataIn = 1; //SCSI_IOCTL_DATA_IN
sptwb.spt.DataTransferLength = 255;
sptwb.spt.TimeOutValue = 2;
sptwb.spt.DataBufferOffset = Marshal.OffsetOf(typeof(ScsiPassThroughWithBuffers), "ucDataBuf");
sptwb.spt.SenseInfoOffset = Marshal.OffsetOf(typeof(ScsiPassThroughWithBuffers), "ucSenseBuf");
sptwb.spt.Cdb = new byte [16];
sptwb.spt.Cdb [0] = 0x12; //SCSI_INQUIRY
sptwb.spt.Cdb [1] |= 1;
sptwb.spt.Cdb [2] = page_code;
sptwb.spt.Cdb [4] = 255;
length = Marshal.OffsetOf(typeof(ScsiPassThroughWithBuffers), "ucDataBuf").ToInt32()
+ (int)sptwb.spt.DataTransferLength;
returned = 0;
Marshal.StructureToPtr(sptwb, pSptwb, true);
status = ApiFunctions.DeviceIoControl(driveHandle, DeviceIOControlCode.ScsiPassThrough,
pSptwb, Marshal.SizeOf(typeof(SCSI_PASS_THROUGH)), pSptwb, length, out returned, ref nativeOverlapped);
if (!status)
{
throw new FileLoadException("DeviceIoControl Error", Marshal.GetExceptionForHR(Marshal.GetLastWin32Error()));
}
sptwb = (ScsiPassThroughWithBuffers)Marshal.PtrToStructure(pSptwb, typeof(ScsiPassThroughWithBuffers));
while (bufferIdx + sptwb.ucDataBuf [3] > buffer.Length)
{
Array.Resize <byte> (ref buffer, buffer.Length * 2);
}
Array.Copy(sptwb.ucDataBuf, 4, buffer, bufferIdx, sptwb.ucDataBuf [3]);
bufferIdx += sptwb.ucDataBuf [3];
}
if (bufferIdx == 0)
{
return(null);
}
buffer [bufferIdx] = 0;
Array.Resize <byte> (ref buffer, bufferIdx + 1);
return(buffer);
}
finally {
if (pSptwb != IntPtr.Zero)
{
Marshal.FreeHGlobal(pSptwb);
}
if (driveHandle != null)
{
driveHandle.Close();
}
}
}
