routing+lnrpc: add missing query routes parameters

routing/pathfind_test.go

@@ -2109,7 +2109,7 @@ func TestPathFindSpecExample(t *testing.T) {
 	carol := ctx.aliases["C"]
 	const amt lnwire.MilliSatoshi = 4999999
 	route, err := ctx.router.FindRoute(
-		bobNode.PubKeyBytes, carol, amt, noRestrictions, nil,
+		bobNode.PubKeyBytes, carol, amt, noRestrictions, nil, nil,
 	)
 	if err != nil {
 		t.Fatalf("unable to find route: %v", err)
@@ -2164,7 +2164,7 @@ func TestPathFindSpecExample(t *testing.T) {
 
 	// We'll now request a route from A -> B -> C.
 	route, err = ctx.router.FindRoute(
-		source.PubKeyBytes, carol, amt, noRestrictions, nil,
+		source.PubKeyBytes, carol, amt, noRestrictions, nil, nil,
 	)
 	if err != nil {
 		t.Fatalf("unable to find routes: %v", err)

routing/router.go

@@ -1402,6 +1402,7 @@ type routingMsg struct {
 func (r *ChannelRouter) FindRoute(source, target route.Vertex,
 	amt lnwire.MilliSatoshi, restrictions *RestrictParams,
 	destCustomRecords record.CustomSet,
+	routeHints map[route.Vertex][]*channeldb.ChannelEdgePolicy,
 	finalExpiry ...uint16) (*route.Route, error) {
 
 	var finalCLTVDelta uint16
@@ -1444,8 +1445,9 @@ func (r *ChannelRouter) FindRoute(source, target route.Vertex,
 
 	path, err := findPath(
 		&graphParams{
-			graph:          r.cfg.Graph,
-			bandwidthHints: bandwidthHints,
+			graph:           r.cfg.Graph,
+			bandwidthHints:  bandwidthHints,
+			additionalEdges: routeHints,
 		},
 		restrictions, &r.cfg.PathFindingConfig,
 		source, target, amt, finalHtlcExpiry,

routing/router_test.go

@@ -227,7 +227,7 @@ func TestFindRoutesWithFeeLimit(t *testing.T) {
 
 	route, err := ctx.router.FindRoute(
 		ctx.router.selfNode.PubKeyBytes,
-		target, paymentAmt, restrictions, nil,
+		target, paymentAmt, restrictions, nil, nil,
 		zpay32.DefaultFinalCLTVDelta,
 	)
 	if err != nil {
@@ -1269,7 +1269,7 @@ func TestAddEdgeUnknownVertexes(t *testing.T) {
 	copy(targetPubKeyBytes[:], targetNode.SerializeCompressed())
 	_, err = ctx.router.FindRoute(
 		ctx.router.selfNode.PubKeyBytes,
-		targetPubKeyBytes, paymentAmt, noRestrictions, nil,
+		targetPubKeyBytes, paymentAmt, noRestrictions, nil, nil,
 		zpay32.DefaultFinalCLTVDelta,
 	)
 	if err != nil {
@@ -1312,7 +1312,7 @@ func TestAddEdgeUnknownVertexes(t *testing.T) {
 	// updated.
 	_, err = ctx.router.FindRoute(
 		ctx.router.selfNode.PubKeyBytes,
-		targetPubKeyBytes, paymentAmt, noRestrictions, nil,
+		targetPubKeyBytes, paymentAmt, noRestrictions, nil, nil,
 		zpay32.DefaultFinalCLTVDelta,
 	)
 	if err != nil {