Fix sender double-including shadow offset in CLTV expiry height.

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

diff --git a/lightning/src/ln/onion_utils.rs b/lightning/src/ln/onion_utils.rs
index 2d75edd30d0f90e4169e3f424a81de0e11887b79..137699521f482b6b186a4375477284a010bc897b 100644 (file)
--- a/lightning/src/ln/onion_utils.rs
+++ b/lightning/src/ln/onion_utils.rs
@@ -188,11 +188,10 @@ pub(super) fn build_onion_payloads(path: &Path, total_msat: u64, mut recipient_o
                                for (i, blinded_hop) in hops.iter().enumerate() {
                                        if i == hops.len() - 1 {
                                                cur_value_msat += final_value_msat;
-                                               cur_cltv += excess_final_cltv_expiry_delta;
                                                res.push(msgs::OutboundOnionPayload::BlindedReceive {
                                                        sender_intended_htlc_amt_msat: *final_value_msat,
                                                        total_msat,
-                                                       cltv_expiry_height: cur_cltv,
+                                                       cltv_expiry_height: cur_cltv + excess_final_cltv_expiry_delta,
                                                        encrypted_tlvs: blinded_hop.encrypted_payload.clone(),
                                                        intro_node_blinding_point: blinding_point.take(),
                                                });