routing+routerrpc: isolate payment session source from mission control

lnrpc/routerrpc/config.go

@@ -0,0 +1,28 @@
+package routerrpc
+
+import (
+	"time"
+
+	"github.com/lightningnetwork/lnd/lnwire"
+)
+
+// RoutingConfig contains the configurable parameters that control routing.
+type RoutingConfig struct {
+	// PenaltyHalfLife defines after how much time a penalized node or
+	// channel is back at 50% probability.
+	PenaltyHalfLife time.Duration
+
+	// PaymentAttemptPenalty is the virtual cost in path finding weight
+	// units of executing a payment attempt that fails. It is used to trade
+	// off potentially better routes against their probability of
+	// succeeding.
+	PaymentAttemptPenalty lnwire.MilliSatoshi
+
+	// MinProbability defines the minimum success probability of the
+	// returned route.
+	MinRouteProbability float64
+
+	// AprioriHopProbability is the assumed success probability of a hop in
+	// a route when no other information is available.
+	AprioriHopProbability float64
+}

lnrpc/routerrpc/config_active.go

@@ -72,10 +72,9 @@ func DefaultConfig() *Config {
 	}
 }
 
-// GetMissionControlConfig returns the mission control config based on this sub
-// server config.
-func GetMissionControlConfig(cfg *Config) *routing.MissionControlConfig {
-	return &routing.MissionControlConfig{
+// GetRoutingConfig returns the routing config based on this sub server config.
+func GetRoutingConfig(cfg *Config) *RoutingConfig {
+	return &RoutingConfig{
 		AprioriHopProbability: cfg.AprioriHopProbability,
 		MinRouteProbability:   cfg.MinRouteProbability,
 		PaymentAttemptPenalty: lnwire.NewMSatFromSatoshis(

lnrpc/routerrpc/config_default.go

@@ -14,10 +14,9 @@ func DefaultConfig() *Config {
 	return &Config{}
 }
 
-// GetMissionControlConfig returns the mission control config based on this sub
-// server config.
-func GetMissionControlConfig(cfg *Config) *routing.MissionControlConfig {
-	return &routing.MissionControlConfig{
+// GetRoutingConfig returns the routing config based on this sub server config.
+func GetRoutingConfig(cfg *Config) *RoutingConfig {
+	return &RoutingConfig{
 		AprioriHopProbability: routing.DefaultAprioriHopProbability,
 		MinRouteProbability:   routing.DefaultMinRouteProbability,
 		PaymentAttemptPenalty: routing.DefaultPaymentAttemptPenalty,