X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Fln%2Ffeatures.rs;h=492cf5ccd198c2829b73b81ab4e5558b9cd14028;hb=288b93b3dada1f8b6f4a4359f0977d2a0c7c61fe;hp=a9f5a10ee2dad14395e18eda253cbaba2943106c;hpb=06ecbecd6d5944281bbe1f1407114af49eb293d3;p=rust-lightning

diff --git a/lightning/src/ln/features.rs b/lightning/src/ln/features.rs
index a9f5a10e..492cf5cc 100644
--- a/lightning/src/ln/features.rs
+++ b/lightning/src/ln/features.rs
@@ -124,6 +124,12 @@ mod sealed {
 			,
 			// Byte 3
 			,
+			// Byte 4
+			,
+			// Byte 5
+			,
+			// Byte 6
+			,
 		],
 		optional_features: [
 			// Byte 0
@@ -134,6 +140,12 @@ mod sealed {
 			BasicMPP,
 			// Byte 3
 			ShutdownAnySegwit,
+			// Byte 4
+			,
+			// Byte 5
+			,
+			// Byte 6
+			Keysend,
 		],
 	});
 	define_context!(ChannelContext {
@@ -299,9 +311,11 @@ mod sealed {
 	define_feature!(27, ShutdownAnySegwit, [InitContext, NodeContext],
 		"Feature flags for `opt_shutdown_anysegwit`.", set_shutdown_any_segwit_optional,
 		set_shutdown_any_segwit_required);
+	define_feature!(55, Keysend, [NodeContext],
+		"Feature flags for keysend payments.", set_keysend_optional, set_keysend_required);
 
 	#[cfg(test)]
-	define_feature!(123456789, UnknownFeature, [NodeContext, ChannelContext],
+	define_feature!(123456789, UnknownFeature, [NodeContext, ChannelContext, InvoiceContext],
 		"Feature flags for an unknown feature used in testing.", set_unknown_feature_optional,
 		set_unknown_feature_required);
 }
@@ -774,6 +788,16 @@ mod tests {
 		assert!(!init_features.supports_gossip_queries());
 	}
 
+	#[test]
+	fn convert_to_context_with_unknown_flags() {
+		// Ensure the `from` context has fewer known feature bytes than the `to` context.
+		assert!(InvoiceFeatures::known().byte_count() < NodeFeatures::known().byte_count());
+		let invoice_features = InvoiceFeatures::known().set_unknown_feature_optional();
+		assert!(invoice_features.supports_unknown_bits());
+		let node_features: NodeFeatures = invoice_features.to_context();
+		assert!(!node_features.supports_unknown_bits());
+	}
+
 	#[test]
 	fn set_feature_bits() {
 		let features = InvoiceFeatures::empty()