NtApphelpCacheControl

INT64 __fastcall NtApphelpCacheControl(INT64 a1, VOID *a2){
  ULONG v3; 
  int v4; 
  unsigned int v5; 
  PIRP v6; 
  int v9; 
  int v10; 
  int v11; 
  int v12; 
  bool v13; 
  int v14; 
  struct _UNICODE_STRING DestinationString; 
  struct _IO_STATUS_BLOCK IoStatusBlock; 
  struct _KEVENT Event; 
  PDEVICE_OBJECT DeviceObject; 
  PFILE_OBJECT FileObject; 
  DestinationString = 0i64;
  memset(&Event, 0, sizeof(Event));
  IoStatusBlock = 0i64;
  if( (int)a1 >= 12 )
    return(unsigned int)-1073741811;
  FileObject = 0i64;
  DeviceObject = 0i64;
  v3 = (4 * a1) | 0x220003;
  if( (_DWORD)a1 == 9 )
    return(unsigned int)AhcCacheQueryHwId((UINT64)a2);
  if( (int)a1 <= 5 )
  {
    if( (_DWORD)a1 != 5 )
    {
      if( !(_DWORD)a1 )
        goto LABEL_5;
      v9 = a1 - 1;
      if( !v9 )
        goto LABEL_15;
      v10 = v9 - 1;
      if( !v10 )
        goto LABEL_15;
      v14 = v10 - 1;
      v13 = v14 == 0;
LABEL_19:
      if( !v13 )
      {
        if( v14 == 1 )
          goto LABEL_21;
        return(unsigned int)-1073741811;
      }
LABEL_15:
      v5 = 0;
      goto LABEL_6;
    }
  }
  else
  {
    v4 = a1 - 6;
    if( !v4 )
    {
LABEL_5:
      v5 = -1073741275;
      goto LABEL_6;
    }
    v11 = v4 - 1;
    if( !v11 )
      goto LABEL_15;
    v12 = v11 - 1;
    if( v12 )
    {
      v14 = v12 - 2;
      v13 = v14 == 0;
      goto LABEL_19;
    }
  }
LABEL_21:
  v5 = -1073741823;
LABEL_6:
  if( g_AhcDeviceObject )
  {
LABEL_7:
    KeInitializeEvent(&Event, SynchronizationEvent, 0);
    v6 = IoBuildDeviceIoControlRequest(v3, g_AhcDeviceObject, a2, 0x178u, 0i64, 0, 0, &Event, &IoStatusBlock);
    if( !v6 )
      return(unsigned int)-1073741823;
    *((_BYTE *)v6 + 64) = ExGetPreviousMode();
    return(unsigned int)IofCallDriver(g_AhcDeviceObject, v6);
  }
  if( (int)RtlInitUnicodeStringEx(&DestinationString, (WCHAR *)L"\\Device\\ahcache") >= 0
    && IoGetDeviceObjectPointer(&DestinationString, 0xC0000000ui64, &FileObject, &DeviceObject) >= 0 )
  {
    if( _InterlockedCompareExchange64(
           (volatile signed __int64 *)&g_AhcDeviceObject,
           (signed __int64)DeviceObject,
           0i64) )
    {
      HalPutDmaAdapter((PADAPTER_OBJECT)FileObject);
    }
    goto LABEL_7;
  }
  return v5;
}

Referenced by: