Fold the rebind counter and traffic flags into one atomic word (#1820)

2026-10-05 00:46:37 +02:00 · 2026-08-26 15:15:37 -05:00
parent 19e04db115
commit 657f6ad044
10 changed files with 272 additions and 79 deletions
@@ -107,8 +107,8 @@ type Interface struct {
 	sendRecvErrorConfig   recvErrorConfig
 	acceptRecvErrorConfig recvErrorConfig

-	// rebindCount is used to decide if an active tunnel should trigger a punch notification through a lighthouse
-	rebindCount int8
+	// Bumped on every udp rebind, tunnels compare it to decide they need a punch from the far side
+	rebindEpoch atomic.Uint32
 	version     string

 	conntrackCacheTimeout time.Duration