From 1e07ebd5a9313a72d0d2ec036552b09c88c16bd6 Mon Sep 17 00:00:00 2001
From: Michael Tremer <michael.tremer@ipfire.org>
Date: Mon, 28 Jul 2025 15:46:30 +0200
Subject: [PATCH] network: Ensure that we only run once at a time

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---
 config/udev/network-hotplug-master | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/config/udev/network-hotplug-master b/config/udev/network-hotplug-master
index 34cec46a6..ed9cd58c3 100644
--- a/config/udev/network-hotplug-master
+++ b/config/udev/network-hotplug-master
@@ -25,6 +25,12 @@
 
 eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings)
 
+# Only run this script once at a time
+if [ -z "${LOCKED}" ]; then
+	export LOCKED=1
+	exec flock "${0}" "${0}" "$@"
+fi
+
 detect_zone() {
 	local intf="${INTERFACE%?}"
 	intf="${intf%phys}"
-- 
2.47.2