feat(autonat): remove explicit setting of server mode (#2424)

libp2p/src/behaviour/mod.rs

@@ -6,9 +6,7 @@
 use std::error::Error;
 
 use lb_cryptarchia_sync::ChainSyncError;
-use libp2p::{
-    PeerId, StreamProtocol, autonat, identify, identity, kad, kad::Mode, swarm::NetworkBehaviour,
-};
+use libp2p::{PeerId, StreamProtocol, autonat, identify, identity, kad, swarm::NetworkBehaviour};
 use rand::RngCore;
 use thiserror::Error;
 
@@ -84,13 +82,11 @@ impl<Rng: Clone + Send + RngCore + 'static> Behaviour<Rng> {
             identify_config.to_libp2p_config(public_key, &identify_protocol_name),
         );
 
-        let mut kademlia = kad::Behaviour::with_config(
+        let kademlia = kad::Behaviour::with_config(
             peer_id,
             kad::store::MemoryStore::new(peer_id),
             kademlia_config.to_libp2p_config(kad_protocol_name),
         );
-        // set kademlia to server mode
-        kademlia.set_mode(Some(Mode::Server));
 
         let autonat_server = autonat::v2::server::Behaviour::new(rng.clone());
         let nat = nat::Behaviour::new(rng, &nat_config);

services/network/src/backends/libp2p/swarm/kademlia.rs

@@ -93,6 +93,9 @@ impl<R: Clone + Send + RngCore + 'static> SwarmHandler<R> {
             } => {
                 log_routing_update(peer, &addresses.into_vec(), old_peer, is_new_peer);
             }
+            kad::Event::ModeChanged { new_mode } => {
+                tracing::info!("Kademlia mode changed to {new_mode:?}");
+            }
             event => {
                 tracing::debug!("Kademlia event: {:?}", event);
             }