Delphi调用安装驱动sys的单元
unit SysDriver; interface uses windows, winsvc; // jwawinsvc; Type TSysDriver = class(TObject) private HomeDir, DriverDir, DriverName, DEVICE_NAME_STRING, DriverPath : string; // the whole thing hSCMan : SC_HANDLE; // Service Control Manager hDevice : SC_HANDLE; // Handle for device public HaveLoad : Boolean; BaseControlCode : DWORD; constructor Create(DeviceName: string); //--------------------------------------- // Interact with Service Control Manager //--------------------------------------- function OpenSCM: DWORD; function CloseSCM: DWORD; //--------------------------------------- // Install/Start/Stop/Remove driver //--------------------------------------- function Install(newdriverpath: string): DWORD; { use '' for default } function Start: DWORD; function Stop: DWORD; function Remove: DWORD; //-------------------------------- // Device Open/Close //-------------------------------- function DeviceOpen: DWORD; // get a valid hDevice function DeviceClose: DWORD; //-------------------------------- function IOControl(Cmd: DWORD; inBuf: Pointer; inSize: DWORD; outbuf: Pointer; var outSize: DWORD): Boolean; //-------------------------------- function ErrorLookup(ErrorNum: DWORD): string; end; //------------------------------------------- implementation //------------------------------------------- uses sysutils; Const // from ntddk // Service Types (Bit Mask) SERVICE_KERNEL_DRIVER = $00000001; SERVICE_FILE_SYSTEM_DRIVER = $00000002; SERVICE_ADAPTER = $00000004; SERVICE_RECOGNIZER_DRIVER = $00000008; SERVICE_DRIVER = SERVICE_KERNEL_DRIVER or SERVICE_FILE_SYSTEM_DRIVER or SERVICE_RECOGNIZER_DRIVER; SERVICE_WIN32_OWN_PROCESS = $00000010; SERVICE_WIN32_SHARE_PROCESS = $00000020; SERVICE_WIN32 = SERVICE_WIN32_OWN_PROCESS or SERVICE_WIN32_SHARE_PROCESS; SERVICE_INTERACTIVE_PROCESS = $00000100; SERVICE_TYPE_ALL = SERVICE_WIN32 or SERVICE_ADAPTER or SERVICE_DRIVER or SERVICE_INTERACTIVE_PROCESS; // Start Type SERVICE_BOOT_START = $00000000; SERVICE_SYSTEM_START = $00000001; SERVICE_AUTO_START = $00000002; SERVICE_DEMAND_START = $00000003; SERVICE_DISABLED = $00000004; // Error control type SERVICE_ERROR_IGNORE = $00000000; SERVICE_ERROR_NORMAL = $00000001; SERVICE_ERROR_SEVERE = $00000002; SERVICE_ERROR_CRITICAL = $00000003; Type TErrorMsg = record Num: DWORD; Msg: string; end; Const ErrorMsgCt = 30; ERROR_SCM_CANT_CONNECT = 9998; ERROR_NO_DEVICE_HANDLE = 9997; ERROR_GW_BUFFER_TOO_SMALL = 9997; ERROR_UNEXPECTED = 9999; ErrorMsgs: array[1..ErrorMsgCt] of TErrorMsg = ( (Num: ERROR_SUCCESS ; Msg: 'Operation was successful'), (Num: ERROR_INVALID_FUNCTION ; Msg: 'Invalid Function'), (Num: ERROR_ACCESS_DENIED ; Msg: 'Access denied'), (Num: ERROR_CIRCULAR_DEPENDENCY ; Msg: 'Circular dependency'), (Num: ERROR_DATABASE_DOES_NOT_EXIST ; Msg: 'Database doesn''t exist'), (Num: ERROR_DEPENDENT_SERVICES_RUNNING; Msg: 'Dependent services running'), (Num: ERROR_DUP_NAME ; Msg: 'Display name already exists'), (Num: ERROR_INVALID_HANDLE ; Msg: 'Invalid handle'), (Num: ERROR_INVALID_NAME ; Msg: 'Invalid service name'), (Num: ERROR_INVALID_PARAMETER ; Msg: 'Invalid Parameter'), (Num: ERROR_INVALID_SERVICE_ACCOUNT ; Msg: 'User account doesn''t exist'), (Num: ERROR_INVALID_SERVICE_CONTROL ; Msg: 'Invalid service control code'), (Num: ERROR_PATH_NOT_FOUND ; Msg: 'Path not found'), (Num: ERROR_SERVICE_ALREADY_RUNNING ; Msg: 'Service already running'), (Num: ERROR_SERVICE_CANNOT_ACCEPT_CTRL; Msg: 'Service can''t accept control'), (Num: ERROR_SERVICE_DATABASE_LOCKED ; Msg: 'The database is locked'), (Num: ERROR_SERVICE_DEPENDENCY_DeleteD; Msg: 'Depends on nonexistant service'), (Num: ERROR_SERVICE_DEPENDENCY_FAIL ; Msg: 'Depends on service that failed'), (Num: ERROR_SERVICE_DISABLED ; Msg: 'Service has been disabled'), (Num: ERROR_SERVICE_DOES_NOT_EXIST ; Msg: 'Service doesn''t exist'), (Num: ERROR_SERVICE_EXISTS ; Msg: 'Service already exists'), (Num: ERROR_SERVICE_LOGON_FAILED ; Msg: 'Service couldn''t be logged on'), (Num: ERROR_SERVICE_MARKED_FOR_Delete ; Msg: 'Service marked for deletion'), (Num: ERROR_SERVICE_NO_THREAD ; Msg: 'Couldn''t create thread'), (Num: ERROR_SERVICE_NOT_ACTIVE ; Msg: 'Service hasn''t been started'), (Num: ERROR_SERVICE_REQUEST_TIMEOUT ; Msg: 'Service timed out'), (Num: ERROR_GW_BUFFER_TOO_SMALL ; Msg: 'Buffer too small'), (Num: ERROR_NO_DEVICE_HANDLE ; Msg: 'No device handle'), (Num: ERROR_SCM_CANT_CONNECT ; Msg: 'Can''t connect to Service Control Manager'), (Num: ERROR_UNEXPECTED ; Msg: 'An unexpected error occured') ); //----------------------------------------- function TSysDriver.ErrorLookup(ErrorNum: DWORD): string; //----------------------------------------- Var N: integer; Begin If Error <> ERROR_SUCCESS then begin result := 'Error: ' + IntToStr(ErrorNum) + ': '; exit; end; For N := 1 to ErrorMsgCt do Begin if ErrorNum = ErrorMsgs[N].Num then Begin break; end; end; result:=ErrorMsgs[N].Msg; end; //---------------------------------------------------------- // IOCTL codes //---------------------------------------------------------- function CTL_CODE(DeviceType: integer; func: integer; meth: integer; access: integer): DWORD; Begin result := (DeviceType shl 16) or (Access shl 14) or (func shl 2) or (meth); end; Const // Buffering method for user-mode app talking to drive METHOD_BUFFERED = 0; METHOD_IN_DIRECT = 1; METHOD_OUT_DIRECT = 2; METHOD_NEITHER = 3; // Define the access allowed FILE_ANY_ACCESS = 0; FILE_READ_ACCESS = 1; // file & pipe FILE_WRITE_ACCESS = 2; // file & pipe //----------------------------------------- constructor TSysDriver.Create(DeviceName: string); //----------------------------------------- Begin hSCMan := 0; hDevice := INVALID_HANDLE_VALUE; HomeDir := ExtractFilePath(GetModuleName(HInstance)); DEVICE_NAME_STRING := DeviceName; DriverName := DEVICE_NAME_STRING; HaveLoad :=False; // default driver name needed by stop/remove if install wasn't executed // this run (ie: driver already installed end; //------------------------------------------- function TSysDriver.OpenSCM: DWORD; //------------------------------------------- Begin result := ERROR_SUCCESS; hSCMan := OpenSCManager(nil, nil, SC_MANAGER_ALL_ACCESS); if hSCMan = 0 then result := ERROR_SCM_CANT_CONNECT; end; //------------------------------------------- function TSysDriver.CloseSCM: DWORD; //------------------------------------------- Begin result := ERROR_SUCCESS; CloseServiceHandle(hSCMan); hSCMan := 0; end; //----------------------------------------- function TSysDriver.Install(newdriverpath: string): DWORD; { use '' for default } //----------------------------------------- Var hService: SC_HANDLE; dwStatus: DWORD; Begin dwStatus := 0; If newdriverpath = '' then Begin DriverDir := HomeDir; DriverName := DEVICE_NAME_STRING; end else Begin DriverDir := ExtractFilePath(newdriverpath); // DriverName := ExtractFileName(driverpath); end; DriverPath := DriverDir + DriverName+'.sys'; // add to service control manager's database hService := CreateService(hSCMan, PChar(DriverName),PChar(DriverName), SERVICE_ALL_ACCESS, SERVICE_KERNEL_DRIVER, SERVICE_DEMAND_START, SERVICE_ERROR_NORMAL, PChar(DriverPath), nil, nil, nil, nil, nil); if (hService = 0) then Begin dwStatus := GetLastError(); end else Begin CloseServiceHandle(hService); end; result := dwStatus; end; //------------------------------------------- function TSysDriver.Start: DWORD; //------------------------------------------- Var hService: SC_HANDLE; dwStatus: DWORD; lpServiceArgVectors: PChar; temp: LongBool; Begin dwStatus := 0; lpServiceArgVectors := nil; // get a handle to the service hService := OpenService(hSCMan, PChar(DriverName), SERVICE_ALL_ACCESS); if hService <> 0 then Begin // start the driver temp := StartService(hService, 0, PChar(lpServiceArgVectors)); if not temp then dwStatus := GetLastError(); end else dwStatus := GetLastError(); if (hService <> 0) then CloseServiceHandle(hService); result := dwStatus; end; //------------------------------------------- function TSysDriver.Stop: DWORD; //------------------------------------------- Var hService: SC_HANDLE; dwStatus: DWORD; serviceStatus: TServiceStatus; temp: LongBool; Begin dwStatus := 0; // get a handle to the service hService := OpenService(hSCMan, PChar(DriverName), SERVICE_ALL_ACCESS); if hService <> 0 then Begin // stop the driver temp := ControlService(hService, SERVICE_CONTROL_STOP, serviceStatus); if not temp then dwStatus := GetLastError(); end else dwStatus := GetLastError(); if (hService <> 0) then CloseServiceHandle(hService); result := dwStatus; end; //------------------------------------------- function TSysDriver.Remove: DWORD; //------------------------------------------- Var hService: SC_HANDLE; dwStatus: DWORD; temp: LongBool; Begin dwStatus := Stop; // ignore result // get a handle to the service hService := OpenService(hSCMan, PChar(DriverName), SERVICE_ALL_ACCESS); if hService <> 0 then Begin temp := DeleteService(hService); if not temp then dwStatus := GetLastError(); end else dwStatus := GetLastError(); if (hService <> 0) then CloseServiceHandle(hService); result := dwStatus; end; //============================================================= // Device Open/Close functions //============================================================= //------------------------------------------- function TSysDriver.DeviceOpen: DWORD; //------------------------------------------- Var dwStatus: DWORD; Begin dwStatus := 0; if hDevice <> INVALID_HANDLE_VALUE then DeviceClose; // get a handle to the device hDevice := CreateFile( { lpFileName: PChar } PChar('\\.\'+ DEVICE_NAME_STRING), { dwDesiredAccess: integer } GENERIC_READ or GENERIC_WRITE, { dwShareMode: Integer } 0, { lpSecurityAttributes } nil, { dwCreationDisposition: DWORD } OPEN_EXISTING, { dwFlagsAndAttributes: DWORD } FILE_ATTRIBUTE_NORMAL, { hTemplateFile: THandle } 0); if hDevice = INVALID_HANDLE_VALUE then Begin dwStatus := GetLastError(); end else begin HaveLoad:=True; end; result := dwStatus; end; //------------------------------------------- function TSysDriver.DeviceClose: DWORD; //------------------------------------------- Var dwStatus: DWORD; Begin dwStatus := 0; if (hDevice <> INVALID_HANDLE_VALUE) then CloseHandle(hDevice); hDevice := INVALID_HANDLE_VALUE; result := dwStatus; { assume that it went OK? } end; //------------------------------------------- function TSysDriver.IOControl(Cmd: DWORD; inBuf: Pointer; inSize: DWORD; outbuf: Pointer; var outSize: DWORD): Boolean; //------------------------------------------- Var BytesReturned: DWORD; MyControlCode: DWORD; Begin Result := False; if hDevice = INVALID_HANDLE_VALUE then Exit; MyControlCode := Cmd;//CTL_CODE(BaseControlCode, Cmd , METHOD_BUFFERED, FILE_ANY_ACCESS); BytesReturned := 0; Result := DeviceIoControl(hDevice, MyControlCode , { in buffer (to driver) } InBuf, inSize, { out buffer (from driver) } OutBuf, outSize, BytesReturned, nil); end; end.
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