lnwire: add support for Features in NodeAnnouncement

Add support for Features in NodeAnnouncment according to spec.

routing/notifications_test.go

@@ -24,6 +24,8 @@ var (
 		Port: 9000}
 	testAddrs = []net.Addr{testAddr}
 
+	testFeatures = lnwire.NewFeatureVector([]lnwire.Feature{})
+
 	testHash = [32]byte{
 		0xb7, 0x94, 0x38, 0x5f, 0x2d, 0x1e, 0xf7, 0xab,
 		0x4d, 0x92, 0x73, 0xd1, 0x90, 0x63, 0x81, 0xb4,
@@ -47,6 +49,7 @@ func createGraphNode() (*channeldb.LightningNode, error) {
 		PubKey:     priv.PubKey(),
 		Color:      color.RGBA{1, 2, 3, 0},
 		Alias:      "kek" + string(pub[:]),
+		Features:   testFeatures,
 	}, nil
 }
 
@@ -68,6 +71,7 @@ func createTestWireNode() (*lnwire.NodeAnnouncement, error) {
 		Addresses: testAddrs,
 		NodeID:    priv.PubKey(),
 		Alias:     alias,
+		Features:  testFeatures,
 	}, nil
 }
 

routing/pathfind_test.go

@@ -167,6 +167,7 @@ func parseTestGraph(path string) (*channeldb.ChannelGraph, func(), aliasMap, err
 			Addresses:  testAddrs,
 			PubKey:     pub,
 			Alias:      node.Alias,
+			Features:   testFeatures,
 		}
 
 		// We require all aliases within the graph to be unique for our

routing/router.go

@@ -696,6 +696,7 @@ func (r *ChannelRouter) processNetworkAnnouncement(msg lnwire.Message) bool {
 			Addresses:  msg.Addresses,
 			PubKey:     msg.NodeID,
 			Alias:      msg.Alias.String(),
+			Features:   msg.Features,
 		}
 
 		if err = r.cfg.Graph.AddLightningNode(node); err != nil {
@@ -945,9 +946,10 @@ func (r *ChannelRouter) syncChannelGraph(syncReq *syncRequest) error {
 		ann := &lnwire.NodeAnnouncement{
 			Signature: r.fakeSig,
 			Timestamp: uint32(node.LastUpdate.Unix()),
-			Addresses: node.Addresses,
 			NodeID:    node.PubKey,
 			Alias:     alias,
+			Features:  node.Features,
+			Addresses: node.Addresses,
 		}
 		announceMessages = append(announceMessages, ann)