C# 读取IDE硬盘序列号

public class IDE
{
    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
    internal struct IDSECTOR
    {
        public ushort wGenConfig;
        public ushort wNumCyls;
        public ushort wReserved;
        public ushort wNumHeads;
        public ushort wBytesPerTrack;
        public ushort wBytesPerSector;
        public ushort wSectorsPerTrack;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
        public ushort[] wVendorUnique;
        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 20)]
        public string sSerialNumber;
        public ushort wBufferType;
        public ushort wBufferSize;
        public ushort wECCSize;
        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 8)]
        public string sFirmwareRev;
        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 40)]
        public string sModelNumber;
        public ushort wMoreVendorUnique;
        public ushort wDoubleWordIO;
        public ushort wCapabilities;
        public ushort wReserved1;
        public ushort wPIOTiming;
        public ushort wDMATiming;
        public ushort wBS;
        public ushort wNumCurrentCyls;
        public ushort wNumCurrentHeads;
        public ushort wNumCurrentSectorsPerTrack;
        public uint ulCurrentSectorCapacity;
        public ushort wMultSectorStuff;
        public uint ulTotalAddressableSectors;
        public ushort wSingleWordDMA;
        public ushort wMultiWordDMA;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 128)]
        public byte[] bReserved;
    }

    [StructLayout(LayoutKind.Sequential)]
    internal struct DRIVERSTATUS
    {
        public byte bDriverError;
        public byte bIDEStatus;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
        public byte[] bReserved;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
        public uint[] dwReserved;
    }

    [StructLayout(LayoutKind.Sequential)]
    internal struct SENDCMDOUTPARAMS
    {
        public uint cBufferSize;
        public DRIVERSTATUS DriverStatus;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 513)]
        public byte[] bBuffer;
    }

    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
    internal struct SRB_IO_CONTROL
    {
        public uint HeaderLength;
        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 8)]
        public string Signature;
        public uint Timeout;
        public uint ControlCode;
        public uint ReturnCode;
        public uint Length;
    }

    [StructLayout(LayoutKind.Sequential)]
    internal struct IDEREGS
    {
        public byte bFeaturesReg;
        public byte bSectorCountReg;
        public byte bSectorNumberReg;
        public byte bCylLowReg;
        public byte bCylHighReg;
        public byte bDriveHeadReg;
        public byte bCommandReg;
        public byte bReserved;
    }

    [StructLayout(LayoutKind.Sequential)]
    internal struct SENDCMDINPARAMS
    {
        public uint cBufferSize;
        public IDEREGS irDriveRegs;
        public byte bDriveNumber;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
        public byte[] bReserved;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
        public uint[] dwReserved;
        public byte bBuffer;
    }

    [StructLayout(LayoutKind.Sequential)]
    internal struct GETVERSIONOUTPARAMS
    {
        public byte bVersion;
        public byte bRevision;
        public byte bReserved;
        public byte bIDEDeviceMap;
        public uint fCapabilities;
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
        public uint[] dwReserved; // For future use.

        [DllImport("kernel32.dll")]
        private static extern int CloseHandle(uint hObject);

        [DllImport("kernel32.dll")]
        private static extern int DeviceIoControl(uint hDevice,
        uint dwIoControlCode,
        ref SENDCMDINPARAMS lpInBuffer,
        int nInBufferSize,
        ref SENDCMDOUTPARAMS lpOutBuffer,
        int nOutBufferSize,
        ref uint lpbytesReturned,
        int lpOverlapped);
        [DllImport("kernel32.dll")]
        private static extern int DeviceIoControl(uint hDevice,
        uint dwIoControlCode,
        int lpInBuffer,
        int nInBufferSize,
        ref GETVERSIONOUTPARAMS lpOutBuffer,
        int nOutBufferSize,
        ref uint lpbytesReturned,
        int lpOverlapped);

        [DllImport("kernel32.dll")]
        private static extern uint CreateFile(string lpFileName,
        uint dwDesiredAccess,
        uint dwShareMode,
        int lpSecurityAttributes,
        uint dwCreationDisposition,
        uint dwFlagsAndAttributes,
        int hTemplateFile);

        private const uint GENERIC_READ = 0x80000000;
        private const uint GENERIC_WRITE = 0x40000000;
        private const uint FILE_SHARE_READ = 0x00000001;
        private const uint FILE_SHARE_WRITE = 0x00000002;
        private const uint OPEN_EXISTING = 3;
        private const uint INVALID_HANDLE_VALUE = 0xffffffff;
        private const uint DFP_GET_VERSION = 0x00074080;
        private const int IDE_ATAPI_IDENTIFY = 0xA1; // Returns ID sector for ATAPI.
        private const int IDE_ATA_IDENTIFY = 0xEC; // Returns ID sector for ATA.
        private const int IDENTIFY_BUFFER_SIZE = 512;
        private const uint DFP_RECEIVE_DRIVE_DATA = 0x0007c088;

        public static string Read(byte drive)
        {
            OperatingSystem os = Environment.OSVersion;
            if (os.Platform != PlatformID.Win32NT) throw new NotSupportedException("仅支持2000/XP");
            if (os.Version.Major < 5) throw new NotSupportedException("仅支持2000/XP");

            string driveName = "////.//PhysicalDrive" + drive.ToString();
            uint device = CreateFile(driveName,
            GENERIC_READ | GENERIC_WRITE,
            FILE_SHARE_READ | FILE_SHARE_WRITE,
            0, OPEN_EXISTING, 0, 0);
            if (device == INVALID_HANDLE_VALUE) return "";
            GETVERSIONOUTPARAMS verPara = new GETVERSIONOUTPARAMS();
            uint bytRv = 0;

            if (0 != DeviceIoControl(device, DFP_GET_VERSION,
            0, 0, ref verPara, Marshal.SizeOf(verPara),
            ref bytRv, 0))
            {
                if (verPara.bIDEDeviceMap > 0)
                {
                    byte bIDCmd = (byte)(((verPara.bIDEDeviceMap >> drive & 0x10) != 0) ? IDE_ATAPI_IDENTIFY : IDE_ATA_IDENTIFY);

                    SENDCMDINPARAMS scip = new SENDCMDINPARAMS();
                    SENDCMDOUTPARAMS scop = new SENDCMDOUTPARAMS();

                    scip.cBufferSize = IDENTIFY_BUFFER_SIZE;
                    scip.irDriveRegs.bFeaturesReg = 0;
                    scip.irDriveRegs.bSectorCountReg = 1;
                    scip.irDriveRegs.bCylLowReg = 0;
                    scip.irDriveRegs.bCylHighReg = 0;
                    scip.irDriveRegs.bDriveHeadReg = (byte)(0xA0 | ((drive & 1) << 4));
                    scip.irDriveRegs.bCommandReg = bIDCmd;
                    scip.bDriveNumber = drive;

                    if (0 != DeviceIoControl(device, DFP_RECEIVE_DRIVE_DATA,
                    ref scip, Marshal.SizeOf(scip), ref scop,
                    Marshal.SizeOf(scop), ref bytRv, 0))
                    {
                        StringBuilder s = new StringBuilder();
                        for (int i = 20; i < 40; i += 2)
                        {
                            s.Append((char)(scop.bBuffer[i + 1]));
                            s.Append((char)scop.bBuffer[i]);
                        }
                        CloseHandle(device);
                        return s.ToString().Trim();
                    }
                }
            }
            CloseHandle(device);
            return "";
        }
    }
}