lnwire+feature: add feature bit for script enforced lease support

feature/default_sets.go

@@ -64,4 +64,8 @@ var defaultSetDesc = setDesc{
 		SetInit:    {}, // I
 		SetNodeAnn: {}, // N
 	},
+	lnwire.ScriptEnforcedLeaseOptional: {
+		SetInit:    {}, // I
+		SetNodeAnn: {}, // N
+	},
 }

feature/deps.go

@@ -65,6 +65,10 @@ var deps = depDesc{
 		lnwire.PaymentAddrOptional: {},
 	},
 	lnwire.ExplicitChannelTypeOptional: {},
+	lnwire.ScriptEnforcedLeaseOptional: {
+		lnwire.ExplicitChannelTypeOptional:  {},
+		lnwire.AnchorsZeroFeeHtlcTxOptional: {},
+	},
 }
 
 // ValidateDeps asserts that a feature vector sets all features and their

feature/manager.go

@@ -23,6 +23,10 @@ type Config struct {
 
 	// NoWumbo unsets any bits signalling support for wumbo channels.
 	NoWumbo bool
+
+	// NoScriptEnforcementLease unsets any bits signaling support for script
+	// enforced leases.
+	NoScriptEnforcementLease bool
 }
 
 // Manager is responsible for generating feature vectors for different requested
@@ -92,6 +96,10 @@ func newManager(cfg Config, desc setDesc) (*Manager, error) {
 			raw.Unset(lnwire.WumboChannelsOptional)
 			raw.Unset(lnwire.WumboChannelsRequired)
 		}
+		if cfg.NoScriptEnforcementLease {
+			raw.Unset(lnwire.ScriptEnforcedLeaseOptional)
+			raw.Unset(lnwire.ScriptEnforcedLeaseRequired)
+		}
 
 		// Ensure that all of our feature sets properly set any
 		// dependent features.