Support failing blinded non-intro HTLCs after RAA processing.

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

diff --git a/lightning/src/ln/channel.rs b/lightning/src/ln/channel.rs
index a991c8eeda13fbe29a35cb9b8845dccea202ae09..bac45076891aefc9ab2df35187e2847002e20c27 100644 (file)
--- a/lightning/src/ln/channel.rs
+++ b/lightning/src/ln/channel.rs
@@ -2881,6 +2881,17 @@ impl<SP: Deref> Channel<SP> where
                        .map(|msg_opt| assert!(msg_opt.is_none(), "We forced holding cell?"))
        }
 
+       /// Used for failing back with [`msgs::UpdateFailMalformedHTLC`]. For now, this is used when we
+       /// want to fail blinded HTLCs where we are not the intro node.
+       ///
+       /// See [`Self::queue_fail_htlc`] for more info.
+       pub fn queue_fail_malformed_htlc<L: Deref>(
+               &mut self, htlc_id_arg: u64, failure_code: u16, sha256_of_onion: [u8; 32], logger: &L
+       ) -> Result<(), ChannelError> where L::Target: Logger {
+               self.fail_htlc(htlc_id_arg, (failure_code, sha256_of_onion), true, logger)
+                       .map(|msg_opt| assert!(msg_opt.is_none(), "We forced holding cell?"))
+       }
+
        /// We can only have one resolution per HTLC. In some cases around reconnect, we may fulfill
        /// an HTLC more than once or fulfill once and then attempt to fail after reconnect. We cannot,
        /// however, fail more than once as we wait for an upstream failure to be irrevocably committed