Generate HTLCIntercepted event upon interceptable forward

[rust-lightning] / lightning / src / util / events.rs

diff --git a/lightning/src/util/events.rs b/lightning/src/util/events.rs
index 04a3b1004bd342f1d438b37c1f1035a7b1f3d346..268f9c9088c9a5aefee15f0f78529ca857684488 100644 (file)
--- a/lightning/src/util/events.rs
+++ b/lightning/src/util/events.rs
@@ -182,6 +182,12 @@ pub enum HTLCDestination {
                /// Short channel id we are requesting to forward an HTLC to.
                requested_forward_scid: u64,
        },
+       /// We couldn't forward to the outgoing scid. An example would be attempting to send a duplicate
+       /// intercept HTLC.
+       InvalidForward {
+               /// Short channel id we are requesting to forward an HTLC to.
+               requested_forward_scid: u64
+       },
        /// Failure scenario where an HTLC may have been forwarded to be intended for us,
        /// but is invalid for some reason, so we reject it.
        ///
@@ -200,12 +206,15 @@ impl_writeable_tlv_based_enum_upgradable!(HTLCDestination,
                (0, node_id, required),
                (2, channel_id, required),
        },
+       (1, InvalidForward) => {
+               (0, requested_forward_scid, required),
+       },
        (2, UnknownNextHop) => {
                (0, requested_forward_scid, required),
        },
        (4, FailedPayment) => {
                (0, payment_hash, required),
-       }
+       },
 );
 
 #[cfg(anchors)]