Short-circuit router for an outbound specified direct channel

diff --git a/src/ln/router.rs b/src/ln/router.rs
index 9e3272c13e260dc565eb2e6fe6935e674e6bbcaf..0ee6450fa42718deef66dc7666d71e4d75740ced 100644 (file)
--- a/src/ln/router.rs
+++ b/src/ln/router.rs
@@ -403,7 +403,18 @@ impl Router {
                let mut first_hop_targets = HashMap::with_capacity(if first_hops.is_some() { first_hops.as_ref().unwrap().len() } else { 0 });
                if let Some(hops) = first_hops {
                        for chan in hops {
-                               first_hop_targets.insert(chan.remote_network_id, chan.short_channel_id.expect("first_hops should be filled in with usable channels, not pending ones"));
+                               let short_channel_id = chan.short_channel_id.expect("first_hops should be filled in with usable channels, not pending ones");
+                               if chan.remote_network_id == *target {
+                                       return Ok(Route {
+                                               hops: vec![RouteHop {
+                                                       pubkey: chan.remote_network_id,
+                                                       short_channel_id,
+                                                       fee_msat: final_value_msat,
+                                                       cltv_expiry_delta: final_cltv,
+                                               }],
+                                       });
+                               }
+                               first_hop_targets.insert(chan.remote_network_id, short_channel_id);
                        }
                        if first_hop_targets.is_empty() {
                                return Err(HandleError{err: "Cannot route when there are no outbound routes away from us", action: None});