From 9d6d7913ce8bf76717f75d7d4845a61f4889da80 Mon Sep 17 00:00:00 2001
From: tv <tv@krebsco.de>
Date: Fri, 6 Nov 2026 04:35:12 +0100
Subject: other wire versions warned

---
 src/transport/libp2p/mod.rs | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/transport/libp2p')

diff --git a/src/transport/libp2p/mod.rs b/src/transport/libp2p/mod.rs
index 3c4ddf5..2290dea 100644
--- a/src/transport/libp2p/mod.rs
+++ b/src/transport/libp2p/mod.rs
@@ -658,6 +658,7 @@ impl Transport for Libp2pTransport {
         let stranger_reads = Arc::new(Semaphore::new(STRANGER_READS));
         let probes = Arc::clone(&handler);
         let admission = Arc::clone(&self.admission);
+        let other_versions = Arc::new(wire::OtherVersions::default());
         tokio::spawn(async move {
             while let Some((peer, stream)) = incoming.next().await {
                 let limit = crate::transport::Admission::limit(
@@ -686,6 +687,7 @@ impl Transport for Libp2pTransport {
                 };
                 let sender = sender.clone();
                 let probes = Arc::clone(&probes);
+                let other_versions = Arc::clone(&other_versions);
                 tokio::spawn(async move {
                     match read_message(stream, limit).await {
                         Ok(body) => match wire::decode(&body) {
@@ -701,6 +703,9 @@ impl Transport for Libp2pTransport {
                             Ok(message) => {
                                 let _ = sender.send((peer, message, body.len())).await;
                             }
+                            Err(wire::WireError::Version(version)) => {
+                                other_versions.note(SCHEME, &peer.to_string(), version);
+                            }
                             Err(error) => {
                                 debug!(peer = %Addressed(SCHEME, &peer), error = %error, "Dropping a message that doesn't decode");
                             }
-- 
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