feature: make gossip queries compulsory

feature/default_sets.go

@@ -14,7 +14,7 @@ var defaultSetDesc = setDesc{
 		SetInit:    {}, // I
 		SetNodeAnn: {}, // N
 	},
-	lnwire.GossipQueriesOptional: {
+	lnwire.GossipQueriesRequired: {
 		SetInit:    {}, // I
 		SetNodeAnn: {}, // N
 	},

feature/manager_internal_test.go

@@ -150,7 +150,7 @@ func TestUpdateFeatureSets(t *testing.T) {
 			SetInit:    {}, // I
 			SetNodeAnn: {}, // N
 		},
-		lnwire.GossipQueriesOptional: {
+		lnwire.GossipQueriesRequired: {
 			SetNodeAnn: {}, // N
 		},
 	}
@@ -200,7 +200,7 @@ func TestUpdateFeatureSets(t *testing.T) {
 				),
 				SetNodeAnn: lnwire.NewRawFeatureVector(
 					lnwire.DataLossProtectRequired,
-					lnwire.GossipQueriesOptional,
+					lnwire.GossipQueriesRequired,
 					lnwire.FeatureBit(1000),
 				),
 			},
@@ -221,7 +221,7 @@ func TestUpdateFeatureSets(t *testing.T) {
 				),
 				SetNodeAnn: lnwire.NewRawFeatureVector(
 					lnwire.DataLossProtectRequired,
-					lnwire.GossipQueriesOptional,
+					lnwire.GossipQueriesRequired,
 				),
 			},
 			config: Config{
@@ -241,7 +241,7 @@ func TestUpdateFeatureSets(t *testing.T) {
 				),
 				SetNodeAnn: lnwire.NewRawFeatureVector(
 					lnwire.DataLossProtectRequired,
-					lnwire.GossipQueriesOptional,
+					lnwire.GossipQueriesRequired,
 					lnwire.FeatureBit(500),
 				),
 				SetInvoice: lnwire.NewRawFeatureVector(

peer/brontide.go

@@ -754,6 +754,13 @@ func (p *Brontide) initGossipSync() {
 	if p.remoteFeatures.HasFeature(lnwire.GossipQueriesOptional) {
 		p.log.Info("Negotiated chan series queries")
 
+		if p.cfg.AuthGossiper == nil {
+			// This should only ever be hit in the unit tests.
+			p.log.Warn("No AuthGossiper configured. Abandoning " +
+				"gossip sync.")
+			return
+		}
+
 		// Register the peer's gossip syncer with the gossiper.
 		// This blocks synchronously to ensure the gossip syncer is
 		// registered with the gossiper before attempting to read

peer/brontide_test.go

@@ -1080,6 +1080,7 @@ func TestPeerCustomMessage(t *testing.T) {
 		initReplyMsg := lnwire.NewInitMessage(
 			lnwire.NewRawFeatureVector(
 				lnwire.DataLossProtectRequired,
+				lnwire.GossipQueriesOptional,
 			),
 			lnwire.NewRawFeatureVector(),
 		)