Consistently clean up when failing in `internal_funding_created`

[rust-lightning] / lightning / src / ln / channel.rs

diff --git a/lightning/src/ln/channel.rs b/lightning/src/ln/channel.rs
index c5f2e0c7d43f423ad30ad4a5a58800a8ff522586..28842b1bf79d2b0f21d2367291338c898c76226f 100644 (file)
--- a/lightning/src/ln/channel.rs
+++ b/lightning/src/ln/channel.rs
@@ -2920,6 +2920,20 @@ impl<SP: Deref> Channel<SP> where
                self.context.channel_state.clear_waiting_for_batch();
        }
 
+       /// Unsets the existing funding information.
+       ///
+       /// This must only be used if the channel has not yet completed funding and has not been used.
+       ///
+       /// Further, the channel must be immediately shut down after this with a call to
+       /// [`ChannelContext::force_shutdown`].
+       pub fn unset_funding_info(&mut self, temporary_channel_id: ChannelId) {
+               debug_assert!(matches!(
+                       self.context.channel_state, ChannelState::AwaitingChannelReady(_)
+               ));
+               self.context.channel_transaction_parameters.funding_outpoint = None;
+               self.context.channel_id = temporary_channel_id;
+       }
+
        /// Handles a channel_ready message from our peer. If we've already sent our channel_ready
        /// and the channel is now usable (and public), this may generate an announcement_signatures to
        /// reply with.