f send/handle channel side

Author: TheBlueMatt

lightning/src/ln/channel.rs

@@ -755,7 +755,7 @@ impl<Signer: Sign> Channel<Signer> {
 			// We currently only actually support one channel type, so don't retry with new types
 			// on error messages. When we support more we'll need fallback support (assuming we
 			// want to support old types).
-			channel_type: ChannelTypeFeatures::known(),
+			channel_type: ChannelTypeFeatures::only_static_remote_key(),
 		})
 	}
 
@@ -787,10 +787,10 @@ impl<Signer: Sign> Channel<Signer> {
 		// First check the channel type is known, failing before we do anything else if we don't
 		// support this channel type.
 		let channel_type = if let Some(channel_type) = &msg.channel_type {
-			if channel_type.supports_unknown_bits() {
+			if channel_type.supports_any_optional_bits() {
 				return Err(ChannelError::Close("Channel Type field contained optional bits - this is not allowed".to_owned()));
 			}
-			if channel_type.requires_unknown_bits() {
+			if *channel_type != ChannelTypeFeatures::only_static_remote_key() {
 				return Err(ChannelError::Close("Channel Type was not understood".to_owned()));
 			}
 			channel_type.clone()