我的任务是实施一个可靠的解决方案来检索硬盘驱动器的序列号。不幸的是,WMI 方法根本不可靠。所以我正在寻找另一种解决方案。
我找到了这个小软件,它完全符合我想在 C#.net 中实现的功能。幸运的是,源代码也是可用的。
基本上我想ReadIdeDriveAsScsiDriveInNT
在 C# 中实现来自 diskid32 的功能。
我如何与设备通信:
[DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Auto)]
private static extern bool DeviceIoControl(
SafeFileHandle device,
int inputOutputControlCode,
[In] ref sbyte[] inputBuffer,
int inputBufferSize,
[In] [Out] ref sbyte[] outputBuffer,
int outputBufferSize,
ref uint bytesCount,
int overlapped);
public static string GetSerialNumberUsingMiniportDriver(int deviceNumber)
{
using (var device = OpenScsi(2))
{
var bytesReturned = default(uint);
var sio = new ScsiRequestBlockInputOutputControl();
var sop = new SendCommandOutParameters();
var sip = new SendCommandInParameters();
var buffer = new byte[Marshal.SizeOf(sio) + Marshal.SizeOf(sop) + IdentifyBufferSize];
sio.HeaderLength = Marshal.SizeOf(sio);
sio.Timeout = 10000;
sio.Length = Marshal.SizeOf(sop) + IdentifyBufferSize;
sio.ControlCode = InputOutputControlSCSIMiniportIdentify;
sio.Signature = Encoding.ASCII.GetBytes("SCSIDISK".ToCharArray());
var ptr = Marshal.AllocHGlobal(Marshal.SizeOf(sio));
Marshal.StructureToPtr(sio, ptr, true);
Marshal.Copy(ptr, buffer, 0, Marshal.SizeOf(sio));
sip.DriveRegister.CommandRegister = IDEATAIdentify;
sip.DriveNumber = 0;
ptr = Marshal.AllocHGlobal(Marshal.SizeOf(sip));
Marshal.StructureToPtr(sip, ptr, true);
Marshal.Copy(ptr, buffer, Marshal.SizeOf(sio), Marshal.SizeOf(sip));
var signedBuffer = new sbyte[buffer.Length];
Buffer.BlockCopy(buffer, 0, signedBuffer, 0, buffer.Length);
if (
!DeviceIoControl(
device,
InputOutputControlSCSIMiniport,
ref signedBuffer,
Marshal.SizeOf(sio) + Marshal.SizeOf(sip) - 1,
ref signedBuffer,
Marshal.SizeOf(sio) + Marshal.SizeOf(sop) + IdentifyBufferSize,
ref bytesReturned,
0))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
var result = new StringBuilder();
result.Append(buffer);
return result.ToString();
}
}
我如何创建句柄:
[DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Auto)]
private static extern SafeFileHandle CreateFile(
string fileName,
int desiredAccess,
FileShare shareMode,
IntPtr securityAttributes,
FileMode creationDisposition,
FileAttributes flagsAndAttributes,
IntPtr templateFile);
private static SafeFileHandle OpenScsi(int scsiNumber)
{
var device = CreateFile(string.Format(@"\\.\Scsi{0}:", scsiNumber), 0, FileShare.ReadWrite, IntPtr.Zero, FileMode.Open, 0, IntPtr.Zero);
if (device.IsInvalid)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
return device;
}
signedBuffer
包含与 diskid32 示例中的缓冲区完全相同的字节!Diskid32 返回该句柄\\.\Scsi2:
和DriveNumber = 0
结果,所以我使用相同的参数。
创建句柄时有所不同。我也尝试过 diskid32 中的内容。没有任何成功。
Win32Exception
当我调用DeviceIoControl
C#时,我总是得到一个,即Access denied
. 有人有想法吗?