protected bool SCSICommand(IntPtr handle, byte cdbLength, byte[] cdb, int dataLength, ref byte[] dataBuffer, byte dataInOut)
{
bool status;
Int32 nBytesReturned;
IntPtr result = IntPtr.Zero;
int errorMessage;
SCSI_PASS_THROUGH_WITH_BUFFERS info = new SCSI_PASS_THROUGH_WITH_BUFFERS();
info.sptd.cdb = new byte[cdbLength];
info.sptd.cdb = cdb;
info.sptd.Cdblength = cdbLength;
info.sense = new byte[32];
info.sptd.Length = (ushort)Marshal.SizeOf(typeof(SCSI_PASS_THROUGH_DIRECT));
info.sptd.SenseInfoOffset = (uint)Marshal.OffsetOf(typeof(SCSI_PASS_THROUGH_WITH_BUFFERS), "sense");
info.sptd.SenseInfoLength = 32;
info.sptd.DataTransferLength = (uint)dataLength;
info.sptd.DataBufferOffset = Marshal.AllocHGlobal(dataLength);
info.sptd.TimeOutValue = 3;
info.sptd.DataIn = dataInOut;
if (dataInOut == SCSI_IOCTL_DATA_OUT)
{
Marshal.Copy(dataBuffer, 0, info.sptd.DataBufferOffset, dataLength);
}
result = Marshal.AllocHGlobal(Marshal.SizeOf(info));
Marshal.StructureToPtr(info, result, false);
status = DeviceIoControl(handle,
(int)IOCTL_SCSI_PASS_THROUGH_DIRECT,
result,
Marshal.SizeOf(info),
result,
Marshal.SizeOf(info),
out nBytesReturned,
IntPtr.Zero);
if (status == false)
{
errorMessage = Marshal.GetLastWin32Error();
return(false);
}
info = (SCSI_PASS_THROUGH_WITH_BUFFERS)Marshal.PtrToStructure(result, typeof(SCSI_PASS_THROUGH_WITH_BUFFERS));
Marshal.Copy(info.sptd.DataBufferOffset, dataBuffer, 0, dataLength);
Marshal.FreeHGlobal(result);
Marshal.FreeHGlobal(info.sptd.DataBufferOffset);
return(true);
}
public static bool Cmd(IntPtr handle, byte cdbLength, byte[] cdb, int dataLength, ref byte[] dataBuffer, byte dataInOut)
{
bool status;
Int32 nBytesReturned;
IntPtr result = IntPtr.Zero;
int errorMessage;
SCSI_PASS_THROUGH_WITH_BUFFERS info = new SCSI_PASS_THROUGH_WITH_BUFFERS();
info.sptd.cdb = new byte[cdbLength];
info.sptd.cdb = cdb;
info.sptd.Cdblength = cdbLength;
info.sense = new byte[32];
info.sptd.Length = (ushort)Marshal.SizeOf(typeof(SCSI_PASS_THROUGH_DIRECT));
info.sptd.SenseInfoOffset = (uint)Marshal.OffsetOf(typeof(SCSI_PASS_THROUGH_WITH_BUFFERS), "sense");
info.sptd.SenseInfoLength = 32;
info.sptd.DataTransferLength = (uint)dataLength;
info.sptd.DataBufferOffset = Marshal.AllocHGlobal(dataLength);
info.sptd.TimeOutValue = 3;
info.sptd.DataIn = dataInOut;
if (dataInOut == SCSI_IOCTL_DATA_OUT)
{
Marshal.Copy(dataBuffer, 0, info.sptd.DataBufferOffset, dataLength);
}
result = Marshal.AllocHGlobal(Marshal.SizeOf(info));
Marshal.StructureToPtr(info, result, false);
status = DeviceIoControl(handle,
(int)IOCTL_SCSI_PASS_THROUGH_DIRECT,
result,
Marshal.SizeOf(info),
result,
Marshal.SizeOf(info),
out nBytesReturned,
IntPtr.Zero);
if (status == false)
{
errorMessage = Marshal.GetLastWin32Error();
StreamWriter log = new StreamWriter("log.txt", true);
DateTime time = DateTime.Now;
log.WriteLine(time.Hour.ToString() + ":" + time.Minute.ToString() + ":" + time.Second.ToString() + " Write IO Control Fail, Error Message is:" + errorMessage.ToString());
log.Close();
}
info = (SCSI_PASS_THROUGH_WITH_BUFFERS)Marshal.PtrToStructure(result, typeof(SCSI_PASS_THROUGH_WITH_BUFFERS));
//if(dataInOut == SCSI_IOCTL_DATA_IN)
Marshal.Copy(info.sptd.DataBufferOffset, dataBuffer, 0, dataLength);
Marshal.FreeHGlobal(result);
Marshal.FreeHGlobal(info.sptd.DataBufferOffset);
if (status == false)
{
return(false);
}
else
{
return(true);
}
}
