tun: track dupfd sent to netstack, not the incoming fd

celzero · Sep 5, 2023 · deb12ce · deb12ce
1 parent 2a070e8
commit deb12ce
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/tunnel/tunnel.go b/tunnel/tunnel.go
@@ -248,7 +248,7 @@ func (t *gtunnel) SetLink(fd, mtu int) error {
 	log.I("tun: new link; fd(%d), mtu(%d)", dupfd, mtu)
 	t.endpoint = ep
 	t.mtu = mtu
-	t.fdref = fd
+	t.fdref = dupfd
 	return nil
 }