//Implementation of DeviceCtrl routine,this routine will be called
//by applications through IOControl interface routine of IOManager.
static DWORD NtfsDeviceCtrl(__COMMON_OBJECT* lpDrv,
__COMMON_OBJECT* lpDev,
__DRCB* lpDrcb)
{
__COMMON_OBJECT* pFindHandle = NULL;
if((NULL == lpDev) || (NULL == lpDrcb)) //Invalid parameters.
{
goto __TERMINAL;
}
//Dispatch the request to appropriate routines according to control command.
switch(lpDrcb->dwCtrlCommand)
{
case IOCONTROL_FS_CHECKPARTITION:
return CheckPartition(lpDev,(__COMMON_OBJECT*)lpDrcb->lpInputBuffer) ? 1 : 0;
case IOCONTROL_FS_FINDFIRSTFILE:
return FindFirstFile(lpDrv,lpDev,lpDrcb);
case IOCONTROL_FS_FINDNEXTFILE:
return FindNextFile(lpDrv,lpDev,lpDrcb);
case IOCONTROL_FS_FINDCLOSE:
return FindClose(lpDrv,lpDev,lpDrcb);
case IOCONTROL_FS_CREATEDIR:
break;
case IOCONTROL_FS_GETFILEATTR:
return GetFileAttributes(lpDrv,lpDev,lpDrcb);
case IOCONTROL_FS_DELETEFILE:
case IOCONTROL_FS_REMOVEDIR:
default:
break;
}
__TERMINAL:
return 0;
}
//Implementation of DeviceCtrl routine.
static DWORD FatDeviceCtrl(__COMMON_OBJECT* lpDrv,__COMMON_OBJECT* lpDev, __DRCB* lpDrcb)
{
__COMMON_OBJECT* pFindHandle = NULL;
if((NULL == lpDev) || (NULL == lpDrcb)) //Invalid parameters.
{
goto __TERMINAL;
}
//Dispatch the request to appropriate routines according to control command.
switch(lpDrcb->dwCtrlCommand)
{
case IOCONTROL_FS_CHECKPARTITION:
return CheckPartition(lpDev,(__COMMON_OBJECT*)lpDrcb->lpInputBuffer) ? 1 : 0;
case IOCONTROL_FS_FINDFIRSTFILE:
pFindHandle = _fat32FindFirstFile((__COMMON_OBJECT*)lpDev,
(CHAR*)lpDrcb->dwExtraParam1,
(FS_FIND_DATA*)lpDrcb->dwExtraParam2);
if(NULL == pFindHandle) //Can not start the iterate.
{
return 0;
}
lpDrcb->lpOutputBuffer = (LPVOID)pFindHandle;
return 1;
case IOCONTROL_FS_FINDNEXTFILE:
return _FindNextFile((__COMMON_OBJECT*)lpDev,
(__COMMON_OBJECT*)lpDrcb->lpInputBuffer,
(FS_FIND_DATA*)lpDrcb->dwExtraParam2) ? 1 : 0;
case IOCONTROL_FS_FINDCLOSE:
_fat32FindClose((__COMMON_OBJECT*)lpDev,
(__COMMON_OBJECT*)lpDrcb->lpInputBuffer);
break;
case IOCONTROL_FS_CREATEDIR:
if(_CreateDirectory(lpDev,
(LPSTR)lpDrcb->lpInputBuffer,
0))
{
lpDrcb->dwStatus = DRCB_STATUS_SUCCESS;
return 1;
}
else
{
lpDrcb->dwStatus = DRCB_STATUS_FAIL;
return 0;
}
break;
case IOCONTROL_FS_GETFILEATTR:
lpDrcb->dwExtraParam2 = _fat32GetFileAttributes(
lpDev,
(LPCTSTR)lpDrcb->dwExtraParam1);
lpDrcb->dwStatus = DRCB_STATUS_SUCCESS;
return 1;
break;
case IOCONTROL_FS_DELETEFILE:
if(_fat32DeleteFile(lpDev,
(LPSTR)lpDrcb->lpInputBuffer))
{
lpDrcb->dwStatus = DRCB_STATUS_SUCCESS;
return 1;
}
else
{
lpDrcb->dwStatus = DRCB_STATUS_FAIL;
return 0;
}
break;
case IOCONTROL_FS_REMOVEDIR:
if(_RemoveDirectory(lpDev,
(LPSTR)lpDrcb->lpInputBuffer))
{
lpDrcb->dwStatus = DRCB_STATUS_SUCCESS;
return 1;
}
else
{
lpDrcb->dwStatus = DRCB_STATUS_FAIL;
return 0;
}
break;
case IOCONTROL_FS_SETENDFILE:
{
if(_SetEndOfFile(lpDev))
{
lpDrcb->dwStatus = DRCB_STATUS_SUCCESS;
return 1;
}
else
{
lpDrcb->dwStatus = DRCB_STATUS_FAIL;
return 0;
}
}
break;
default:
break;
}
__TERMINAL:
return 0;
}