Publicize UnsignedChannelAnnouncement's excess_data.

Making the `excess_data` field public significantly
simplifies writing legible unit tests for the
Rapid Gossip Sync Server.

diff --git a/lightning/src/ln/msgs.rs b/lightning/src/ln/msgs.rs
index a514f4923268ce8639bafbb5065c43e6e1a7ea3d..0c23d4425f8663ebe6fce310692b2dc11bc89e08 100644 (file)
--- a/lightning/src/ln/msgs.rs
+++ b/lightning/src/ln/msgs.rs
@@ -973,7 +973,11 @@ pub struct UnsignedChannelAnnouncement {
        pub bitcoin_key_1: NodeId,
        /// The funding key for the second node
        pub bitcoin_key_2: NodeId,
-       pub(crate) excess_data: Vec<u8>,
+       /// Excess data which was signed as a part of the message which we do not (yet) understand how
+       /// to decode.
+       ///
+       /// This is stored to ensure forward-compatibility as new fields are added to the lightning gossip protocol.
+       pub excess_data: Vec<u8>,
 }
 /// A [`channel_announcement`] message to be sent to or received from a peer.
 ///