INSTDRV.C
资源名称:filesrc.zip [点击查看]
上传用户:hmgghm
上传日期:2007-01-07
资源大小:335k
文件大小:8k
源码类别:
文件操作
开发平台:
Visual C++
- /******************************************************************************
- *
- * FileMon - File System Monitor for Windows NT/9x
- *
- * Copyright (c) 1996 Mark Russinovich and Bryce Cogswell
- *
- * See readme.txt for terms and conditions.
- *
- * PROGRAM: Instdrv.c
- *
- * PURPOSE: Loads and unloads the Filemon device driver. This code
- * is taken from the instdrv example in the NT DDK.
- *
- ******************************************************************************/
- #include <windows.h>
- #include <stdlib.h>
- #include <string.h>
- /****************************************************************************
- *
- * FUNCTION: InstallDriver( IN SC_HANDLE, IN LPCTSTR, IN LPCTSTR)
- *
- * PURPOSE: Creates a driver service.
- *
- ****************************************************************************/
- BOOL InstallDriver( IN SC_HANDLE SchSCManager, IN LPCTSTR DriverName, IN LPCTSTR ServiceExe )
- {
- SC_HANDLE schService;
- //
- // NOTE: This creates an entry for a standalone driver. If this
- // is modified for use with a driver that requires a Tag,
- // Group, and/or Dependencies, it may be necessary to
- // query the registry for existing driver information
- // (in order to determine a unique Tag, etc.).
- //
- schService = CreateService( SchSCManager, // SCManager database
- DriverName, // name of service
- DriverName, // name to display
- SERVICE_ALL_ACCESS, // desired access
- SERVICE_KERNEL_DRIVER, // service type
- SERVICE_DEMAND_START, // start type
- SERVICE_ERROR_NORMAL, // error control type
- ServiceExe, // service's binary
- NULL, // no load ordering group
- NULL, // no tag identifier
- NULL, // no dependencies
- NULL, // LocalSystem account
- NULL // no password
- );
- if ( schService == NULL )
- return FALSE;
- CloseServiceHandle( schService );
- return TRUE;
- }
- /****************************************************************************
- *
- * FUNCTION: StartDriver( IN SC_HANDLE, IN LPCTSTR)
- *
- * PURPOSE: Starts the driver service.
- *
- ****************************************************************************/
- BOOL StartDriver( IN SC_HANDLE SchSCManager, IN LPCTSTR DriverName )
- {
- SC_HANDLE schService;
- BOOL ret;
- schService = OpenService( SchSCManager,
- DriverName,
- SERVICE_ALL_ACCESS
- );
- if ( schService == NULL )
- return FALSE;
- ret = StartService( schService, 0, NULL )
- || GetLastError() == ERROR_SERVICE_ALREADY_RUNNING;
- CloseServiceHandle( schService );
- return ret;
- }
- /****************************************************************************
- *
- * FUNCTION: OpenDevice( IN LPCTSTR, HANDLE *)
- *
- * PURPOSE: Opens the device and returns a handle if desired.
- *
- ****************************************************************************/
- BOOL OpenDevice( IN LPCTSTR DriverName, HANDLE * lphDevice )
- {
- TCHAR completeDeviceName[64];
- HANDLE hDevice;
- //
- // Create a \.XXX device name that CreateFile can use
- //
- // NOTE: We're making an assumption here that the driver
- // has created a symbolic link using it's own name
- // (i.e. if the driver has the name "XXX" we assume
- // that it used IoCreateSymbolicLink to create a
- // symbolic link "DosDevicesXXX". Usually, there
- // is this understanding between related apps/drivers.
- //
- // An application might also peruse the DEVICEMAP
- // section of the registry, or use the QueryDosDevice
- // API to enumerate the existing symbolic links in the
- // system.
- //
- wsprintf( completeDeviceName, TEXT("\\.\%s"), DriverName );
- hDevice = CreateFile( completeDeviceName,
- GENERIC_READ | GENERIC_WRITE,
- 0,
- NULL,
- OPEN_EXISTING,
- FILE_ATTRIBUTE_NORMAL,
- NULL
- );
- if ( hDevice == ((HANDLE)-1) )
- return FALSE;
- // If user wants handle, give it to them. Otherwise, just close it.
- if ( lphDevice )
- *lphDevice = hDevice;
- else
- CloseHandle( hDevice );
- return TRUE;
- }
- /****************************************************************************
- *
- * FUNCTION: StopDriver( IN SC_HANDLE, IN LPCTSTR)
- *
- * PURPOSE: Has the configuration manager stop the driver (unload it)
- *
- ****************************************************************************/
- BOOL StopDriver( IN SC_HANDLE SchSCManager, IN LPCTSTR DriverName )
- {
- SC_HANDLE schService;
- BOOL ret;
- SERVICE_STATUS serviceStatus;
- schService = OpenService( SchSCManager, DriverName, SERVICE_ALL_ACCESS );
- if ( schService == NULL )
- return FALSE;
- ret = ControlService( schService, SERVICE_CONTROL_STOP, &serviceStatus );
- CloseServiceHandle( schService );
- return ret;
- }
- /****************************************************************************
- *
- * FUNCTION: RemoveDriver( IN SC_HANDLE, IN LPCTSTR)
- *
- * PURPOSE: Deletes the driver service.
- *
- ****************************************************************************/
- BOOL RemoveDriver( IN SC_HANDLE SchSCManager, IN LPCTSTR DriverName )
- {
- SC_HANDLE schService;
- BOOL ret;
- schService = OpenService( SchSCManager,
- DriverName,
- SERVICE_ALL_ACCESS
- );
- if ( schService == NULL )
- return FALSE;
- ret = DeleteService( schService );
- CloseServiceHandle( schService );
- return ret;
- }
- /****************************************************************************
- *
- * FUNCTION: UnloadDeviceDriver( const TCHAR *)
- *
- * PURPOSE: Stops the driver and has the configuration manager unload it.
- *
- ****************************************************************************/
- BOOL UnloadDeviceDriver( const TCHAR * Name )
- {
- SC_HANDLE schSCManager;
- schSCManager = OpenSCManager( NULL, // machine (NULL == local)
- NULL, // database (NULL == default)
- SC_MANAGER_ALL_ACCESS // access required
- );
- StopDriver( schSCManager, Name );
- RemoveDriver( schSCManager, Name );
- CloseServiceHandle( schSCManager );
- return TRUE;
- }
- /****************************************************************************
- *
- * FUNCTION: LoadDeviceDriver( const TCHAR, const TCHAR, HANDLE *)
- *
- * PURPOSE: Registers a driver with the system configuration manager
- * and then loads it.
- *
- ****************************************************************************/
- BOOL LoadDeviceDriver( const TCHAR * Name, const TCHAR * Path, HANDLE * lphDevice )
- {
- SC_HANDLE schSCManager;
- BOOL okay;
- schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS );
- // Remove previous instance
- RemoveDriver( schSCManager, Name );
- // Ignore success of installation: it may already be installed.
- InstallDriver( schSCManager, Name, Path );
- // Ignore success of start: it may already be started.
- StartDriver( schSCManager, Name );
- // Do make sure we can open it.
- okay = OpenDevice( Name, lphDevice );
- CloseServiceHandle( schSCManager );
- return okay;
- }