Add DeviceDummy

Device.go

@@ -51,6 +51,8 @@ func DeviceFactory(objectPath dbus.ObjectPath) (Device, error) {
 	}
 
 	switch d.GetDeviceType() {
+	case NmDeviceTypeDummy:
+		return NewDeviceDummy(objectPath)
 	case NmDeviceTypeWifi:
 		return NewDeviceWireless(objectPath)
 	}

DeviceDummy.go

@@ -0,0 +1,39 @@
+package gonetworkmanager
+
+import (
+	"encoding/json"
+
+	"github.com/godbus/dbus"
+)
+
+const (
+	DeviceDummyInterface = DeviceInterface + ".Dummy"
+
+	DeviceDummyPropertyHwAddress = DeviceDummyInterface + ".HwAddress" // readable   s
+)
+
+type DeviceDummy interface {
+	Device
+
+	// Hardware address of the device.
+	GetHwAddress() string
+}
+
+func NewDeviceDummy(objectPath dbus.ObjectPath) (DeviceDummy, error) {
+	var d deviceDummy
+	return &d, d.init(NetworkManagerInterface, objectPath)
+}
+
+type deviceDummy struct {
+	device
+}
+
+func (d *deviceDummy) GetHwAddress() string {
+	return d.getStringProperty(DeviceDummyPropertyHwAddress)
+}
+
+func (d *deviceDummy) MarshalJSON() ([]byte, error) {
+	m := d.device.marshalMap()
+	m["HwAddress"] = d.GetHwAddress()
+	return json.Marshal(m)
+}