PiQueryAndAllocateBootResources

NTSTATUS __stdcall PiQueryAndAllocateBootResources(_DEVICE_NODE *DeviceNode){
  void *v1; 
  NTSTATUS v3; 
  int v4; 
  NTSTATUS v5; 
  VOID *v6; 
  _ETHREAD *CurrentThread; 
  _OBJECT_TYPE *v9; 
  UINT64 DesiredAccess; 
  UINT64 Create; 
  _UNICODE_STRING ValueName; 
  UINT64 Length; 
  VOID *KeyHandle; 
  VOID *Resource; 

  v1 = 0i64;
  v3 = 0;
  Resource = 0i64;
  ValueName = 0i64;
  LODWORD(Length) = 0;
  KeyHandle = 0i64;
  if( !DeviceNode->BootResources )
  {
    IopQueryDeviceResources(DeviceNode->PhysicalDeviceObject, 0i64, &Resource, &Length);
    v3 = v4;
    if( v4 < 0 )
    {
      Resource = 0i64;
      LODWORD(Length) = 0;
    }
    else
    {
      v1 = Resource;
    }
  }
  if( ((DeviceNode->Flags & 0x2000) == 0 || DeviceNode->Problem != 9)
    && ((DeviceNode->Flags & 0x2000) == 0 || DeviceNode->Problem != 3 && DeviceNode->Problem != 19) )
  {
    LODWORD(DesiredAccess) = 983103;
    v5 = CmOpenDeviceRegKey(
           *(&stru_140CF2E80 + 607),
           DeviceNode->InstancePath.Buffer,
           CM_KEY_TYPE_DEVICE_LOGCONF,
           0i64,
           DesiredAccess,
           v1 != 0i64,
           &KeyHandle,
           0i64);
    v6 = KeyHandle;
    if( v5 < 0 )
      v6 = 0i64;
    KeyHandle = v6;
    if( v6 )
    {
      if( !DeviceNode->BootResources )
      {
        *(_DWORD *)&ValueName.Length = 1441812;
        ValueName.Buffer = (wchar_t *)L"BootConfig";
        CurrentThread = (_ETHREAD *)KeGetCurrentThread();
        --CurrentThread->Tcb.KernelApcDisable;
        ExAcquireResourceSharedLite((UINT64)&PnpReplaceEvent + 6688, 1);
        if( Resource )
        {
          LODWORD(Create) = Length;
          ZwSetValueKey(KeyHandle, &ValueName, 0i64, 8ui64, Resource, Create);
        }
        else
        {
          ZwDeleteValueKey(KeyHandle, &ValueName, v9);
        }
        ExReleaseResourceLite((PERESOURCE)((char *)&PnpReplaceEvent + 6688));
        KeLeaveCriticalRegionThread(KeGetCurrentThread());
        v1 = Resource;
        if( !Resource )
          goto LABEL_11;
        v3 = (*(&PnpReplaceEvent + 683))(4i64, DeviceNode->PhysicalDeviceObject, Resource);
        if( v3 >= 0 )
          PipSetDevNodeFlags(DeviceNode, 0x40ui64);
      }
    }
  }
  if( v1 )
    ExFreePoolWithTag(v1, 0);
LABEL_11:
  if( KeyHandle )
    ZwClose((_HANDLE)KeyHandle);
  return v3;
}

Referenced by: