IoTranslateBusAddress

INT8 __fastcall IoTranslateBusAddress(UINT64 a1, INT64 a2, INT64 a3, INT64 *a4, INT64 *TranslatedAddress){
  int v5; 
  INT64 *v6; 
  unsigned int v7; 
  _INTERFACE_TYPE v8; 
  int v9; 
  __int16 v10; 
  _DEVICE_NODE *LegacyBusDeviceNode; 
  UINT8 v12; 
  UINT8 ResourceHandlerInfo; 
  int v14; 
  VOID *v15; 
  int v16; 
  VOID *Interface; 
  VOID *HandlerEntry; 
  INT64 *v20; 
  UINT8 ResourceType[16]; 
  int v22; 
  __int128 v23; 
  int v24; 

  v5 = 0;
  v20 = a4;
  v24 = 0;
  v6 = a4;
  Interface = 0i64;
  v7 = a2;
  HandlerEntry = 0i64;
  v8 = (int)a1;
  v22 = 0;
  v23 = 0i64;
  if( KeGetCurrentIrql() || !*(&PnpReplaceEvent + 831) )
  {
    *TranslatedAddress = a3;
    return 1;
  }
  v9 = *(_DWORD *)a4;
  if( *(_DWORD *)a4 )
  {
    if( v9 != 1 )
      return 0;
    v10 = 1;
  }
  else
  {
    v10 = 0;
    LOBYTE(v9) = 3;
  }
  *(_WORD *)&ResourceType[2] = v10;
  ResourceType[0] = v9;
  ResourceType[1] = 3;
  *(_QWORD *)&ResourceType[4] = a3;
  *(_DWORD *)&ResourceType[12] = 1;
  PpDevNodeLockTree(PPL_SIMPLE_READ);
  LegacyBusDeviceNode = IopFindLegacyBusDeviceNode(v8, v7);
  if( LegacyBusDeviceNode == (_DEVICE_NODE *)*(&PnpReplaceEvent + 831) )
  {
LABEL_21:
    PpDevNodeUnlockTree(PPL_SIMPLE_READ);
    if( ResourceType[0] != 3 && ResourceType[0] != 7 )
    {
      if( ResourceType[0] != 1 )
        return 0;
      v5 = 1;
    }
    *(_DWORD *)v6 = v5;
    *TranslatedAddress = *(_QWORD *)&ResourceType[4];
    return 1;
  }
  v12 = ResourceType[0];
  while( 1 )
  {
    ResourceHandlerInfo = IopFindResourceHandlerInfo(ResourceTranslator, LegacyBusDeviceNode, v12, &HandlerEntry);
    if( !ResourceHandlerInfo )
    {
      IopQueryResourceHandlerInterface(ResourceTranslator, LegacyBusDeviceNode->PhysicalDeviceObject, v12, &Interface);
      if( v14 >= 0 )
      {
        v15 = Interface;
        goto LABEL_14;
      }
LABEL_18:
      v12 = ResourceType[0];
      goto LABEL_19;
    }
    if( HandlerEntry )
      break;
LABEL_19:
    LegacyBusDeviceNode = LegacyBusDeviceNode->Parent;
    if( LegacyBusDeviceNode == (_DEVICE_NODE *)*(&PnpReplaceEvent + 831) )
    {
LABEL_20:
      v6 = v20;
      goto LABEL_21;
    }
  }
  v15 = (VOID *)*((_QWORD *)HandlerEntry + 3);
LABEL_14:
  v16 = (*((__int64(__fastcall **)(_QWORD, UINT8 *, _QWORD, _QWORD, _QWORD, _QWORD, __int128 *))v15 + 4))(
          *((_QWORD *)v15 + 1),
          ResourceType,
          0i64,
          0i64,
          0i64,
          0i64,
          &v23);
  if( !ResourceHandlerInfo )
  {
    (*((void(__fastcall **)(_QWORD))v15 + 3))(*((_QWORD *)v15 + 1));
    ExFreePoolWithTag(v15, 0);
  }
  if( v16 >= 0 )
  {
    v22 = v24;
    *(_OWORD *)ResourceType = v23;
    if( v16 == 288 )
      goto LABEL_20;
    goto LABEL_18;
  }
  PpDevNodeUnlockTree(PPL_SIMPLE_READ);
  return 0;
}

Referenced by: