unitserialnumber.pas

串口短信猫收发软件。支持西门子TC35i设备

unit UnitSerialNumber;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Controls, Dialogs, StdCtrls;

const
  IDENTIFY_BUFFER_SIZE = 512;

type
   TIDERegs = packed record
     bFeaturesReg: BYTE; // Used for specifying SMART "commands".
     bSectorCountReg: BYTE; // IDE sector count register
     bSectorNumberReg: BYTE; // IDE sector number register
     bCylLowReg: BYTE; // IDE low order cylinder value
     bCylHighReg: BYTE; // IDE high order cylinder value
     bDriveHeadReg: BYTE; // IDE drive/head register
     bCommandReg: BYTE; // Actual IDE command.
     bReserved: BYTE; // reserved for future use. Must be zero.
  end;

  TSendCmdInParams = packed record
    // Buffer size in bytes
    cBufferSize: DWORD;
    // Structure with drive register values.
    irDriveRegs: TIDERegs;
    // Physical drive number to send command to (0,1,2,3).
    bDriveNumber: BYTE;
    bReserved: array[0..2] of Byte;
    dwReserved: array[0..3] of DWORD;
    bBuffer: array[0..0] of Byte; // Input buffer.
  end;

  TIdSector = packed record
    wGenConfig: Word;
    wNumCyls: Word;
    wReserved: Word;
    wNumHeads: Word;
    wBytesPerTrack: Word;
    wBytesPerSector: Word;
    wSectorsPerTrack: Word;
    wVendorUnique: array[0..2] of Word;
    sSerialNumber: array[0..19] of Char;
    wBufferType: Word;
    wBufferSize: Word;
    wECCSize: Word;
    sFirmwareRev: array[0..7] of Char;
    sModelNumber: array[0..39] of Char;
    wMoreVendorUnique: Word;
    wDoubleWordIO: Word;
    wCapabilities: Word;
    wReserved1: Word;
    wPIOTiming: Word;
    wDMATiming: Word;
    wBS: Word;
    wNumCurrentCyls: Word;
    wNumCurrentHeads: Word;
    wNumCurrentSectorsPerTrack: Word;
    ulCurrentSectorCapacity: DWORD;
    wMultSectorStuff: Word;
    ulTotalAddressableSectors: DWORD;
    wSingleWordDMA: Word;
    wMultiWordDMA: Word;
    bReserved: array[0..127] of BYTE;
  end;
  PIdSector = ^TIdSector;

  TDriverStatus = packed record
    // 驱动器返回的错误代码，无错则返回0
    bDriverError: Byte;
    // IDE出错寄存器的内容，只有当bDriverError 为 SMART_IDE_ERROR 时有效
    bIDEStatus: Byte;
    bReserved: array[0..1] of Byte;
    dwReserved: array[0..1] of DWORD;
  end;

  TSendCmdOutParams = packed record
    // bBuffer的大小
    cBufferSize: DWORD;
    // 驱动器状态
    DriverStatus: TDriverStatus;
    // 用于保存从驱动器读出的数据的缓冲区，实际长度由cBufferSize决定
    bBuffer: array[0..0] of BYTE;
  end;

type
  TSerialNumber = class(TObject)
  private
    FSerialNumber: string;
    procedure ChangeByteOrder(var Data; Size: Integer);
  public
    function GetIdeSerialNumber: PChar;
  published
    property SerialNumber: string read FSerialNumber write FSerialNumber;
  end;

var
  SerialNumber: TSerialNumber;

implementation

procedure TSerialNumber.ChangeByteOrder(var Data; Size: Integer);
var
  ptr: Pchar;
  i: Integer;
  c: Char;
begin
  ptr := @Data;
  for I := 0 to (Size shr 1) - 1 do begin
    c := ptr^;
    ptr^ := (ptr + 1)^;
    (ptr + 1)^ := c;
    Inc(ptr, 2);
  end;
end;

//获得硬盘序列号
function TSerialNumber.GetIdeSerialNumber: PChar;
var
  hDevice: Thandle;
  cbBytesReturned: DWORD;
  SCIP: TSendCmdInParams;
  aIdOutCmd: array[0..(SizeOf(TSendCmdOutParams) + IDENTIFY_BUFFER_SIZE - 1) - 1] of Byte;
  IdOutCmd: TSendCmdOutParams absolute aIdOutCmd;
begin
  Result := ''; // 如果出错则返回空串
  if SysUtils.Win32Platform = VER_PLATFORM_WIN32_NT then // Windows NT, Windows 2000
  begin
    // 提示! 改变名称可适用于其它驱动器，如第二个驱动器： '\\.\PhysicalDrive1\'
    hDevice := CreateFile('\\.\PhysicalDrive0',
                          GENERIC_READ or GENERIC_WRITE,
                          FILE_SHARE_READ or FILE_SHARE_WRITE,
                          nil,
                          OPEN_EXISTING,
                          0,
                          0);
  end  // Version Windows 95 OSR2, Windows 98
  else
  begin
    hDevice := CreateFile('\\.\SMARTVSD',
                          0,
                          0,
                          nil,
                          CREATE_NEW,
                          0,
                          0);
  end;
  if hDevice = INVALID_HANDLE_VALUE then Exit;
  try
    FillChar(SCIP, SizeOf(TSendCmdInParams) - 1, #0);
    FillChar(aIdOutCmd, SizeOf(aIdOutCmd), #0);
    cbBytesReturned := 0;
    // Set up data structures for IDENTIFY command.
    with SCIP do
    begin
      cBufferSize := IDENTIFY_BUFFER_SIZE;
      // bDriveNumber := 0;
      with irDriveRegs do
      begin
        bSectorCountReg := 1;
        bSectorNumberReg := 1;
        // if Win32Platform=VER_PLATFORM_WIN32_NT then bDriveHeadReg := $A0
        // else bDriveHeadReg := $A0 or ((bDriveNum and 1) shl 4);
        bDriveHeadReg := $A0;
        bCommandReg := $EC;
       end;
    end;
    if not DeviceIoControl(hDevice,
                           $0007C088,
                           @SCIP,
                           SizeOf(TSendCmdInParams) - 1,
                           @aIdOutCmd,
                           SizeOf(aIdOutCmd),
                           cbBytesReturned,
                           nil) then Exit;
  finally
    CloseHandle(hDevice);
  end;
  with PIdSector(@IdOutCmd.bBuffer)^ do
  begin
    ChangeByteOrder(sSerialNumber, SizeOf(sSerialNumber));
    (Pchar(@sSerialNumber) + SizeOf(sSerialNumber))^ := #0;
    Result := Pchar(@sSerialNumber);
  end;
end;

initialization
begin
  SerialNumber := TSerialNumber.Create;
  SerialNumber.SerialNumber := StrPas(SerialNumber.GetIdeSerialNumber);
end;

finalization
begin
  SerialNumber.Free;
end;

end.