handshakes counted

1 files changed, 7 insertions, 0 deletions

diff --git a/src/swarm/peer/handshake.rs b/src/swarm/peer/handshake.rs
index 92216fd..b964064 100644
--- a/src/swarm/peer/handshake.rs
+++ b/src/swarm/peer/handshake.rs
@@ -440,6 +440,13 @@ pub(super) async fn establish_peer(
     // resets: it starts over with us. Its resent HELLOs and duplicate replies (caused by
     // our own retries) don't.
     peer_state.reports_ready = Some(ready);
+    if from_hello && let Some(count) = peer_state.handshake_started(tokio::time::Instant::now()) {
+        warn!(
+            peer = %peer,
+            handshakes = count,
+            "Peer started many handshakes within a minute (a restart loop?); each resets our session with it"
+        );
+    }
     if from_hello || peer_state.hello_state != HelloState::Established {
         peer_state.hello_state = HelloState::Established;
         peer_state.reset_sync();