ObpInsertCallbackByAltitude

NTSTATUS __stdcall ObpInsertCallbackByAltitude(_OBJECT_TYPE *ObjectType, _OB_CALLBACK_CONTEXT_BLOCK *ObCallbackContext){
  _ETHREAD *CurrentThread; 
  _LIST_ENTRY *p_CallbackList; 
  NTSTATUS v4; 
  ULONG_PTR v6; 
  _LIST_ENTRY *Flink; 
  _LIST_ENTRY *Blink; 
  _LIST_ENTRY *v9; 
  _UNICODE_STRING *v11; 
  NTSTATUS v12; 
  bool v13; 

  CurrentThread = (_ETHREAD *)KeGetCurrentThread();
  p_CallbackList = &ObjectType->CallbackList;
  v4 = 0;
  --CurrentThread->Tcb.SpecialApcDisable;
  v6 = (_DWORD)ObjectType + 184;
  ExAcquirePushLockExclusiveEx(&ObjectType->TypeLock, 0i64);
  Flink = p_CallbackList->Flink;
  if( p_CallbackList->Flink == p_CallbackList )
    goto LABEL_2;
  v11 = (_UNICODE_STRING *)*((_QWORD *)ObCallbackContext + 3);
  while( 1 )
  {
    v12 = RtlCompareAltitudes((_UNICODE_STRING *)&Flink[1].Blink[1], v11 + 1);
    v13 = v12 == 0;
    if( v12 <= 0 )
      break;
    Flink = Flink->Flink;
    if( Flink == p_CallbackList )
    {
      v13 = v12 == 0;
      break;
    }
  }
  if( !v13 )
  {
LABEL_2:
    Blink = Flink->Blink;
    v9 = Blink->Flink;
    if( Blink->Flink->Blink != Blink )
      __fastfail(3u);
    *(_QWORD *)ObCallbackContext = v9;
    *((_QWORD *)ObCallbackContext + 1) = Blink;
    v9->Blink = (_LIST_ENTRY *)ObCallbackContext;
    Blink->Flink = (_LIST_ENTRY *)ObCallbackContext;
  }
  else
  {
    v4 = -1071906799;
  }
  ExReleasePushLockEx(v6, 0);
  KiLeaveGuardedRegionUnsafe((__int64)KeGetCurrentThread());
  return v4;
}

Referenced by: