From: Arik Sosman <git@arik.io>
Date: Wed, 19 Jul 2023 10:02:33 +0000 (-0700)
Subject: Publicize UnsignedChannelAnnouncement's excess_data.
X-Git-Tag: v0.0.117-alpha1~79^2
X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=commitdiff_plain;h=b28769bfd12e7ab6bba3ad2b793698f6a224acd9;p=rust-lightning

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 a514f4923..0c23d4425 100644
--- 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.
 ///