From 3462f11fa6d26c85929ffd7af6cca41dca41d9c3 Mon Sep 17 00:00:00 2001
From: Jonatan Schlag <jonatan.schlag@ipfire.org>
Date: Tue, 4 Jul 2017 17:46:08 +0200
Subject: [PATCH] ipv4-dhcp: prevent multiple configs for the same zone

It is senseless to configure the ipv4-dhcp hook
multiple times for a zone.

Signed-off-by: Jonatan Schlag <jonatan.schlag@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---
 src/hooks/configs/ipv4-dhcp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/hooks/configs/ipv4-dhcp b/src/hooks/configs/ipv4-dhcp
index ef230821..39e03127 100644
--- a/src/hooks/configs/ipv4-dhcp
+++ b/src/hooks/configs/ipv4-dhcp
@@ -35,6 +35,11 @@ hook_new() {
 	local zone="${1}"
 	shift
 
+	if zone_config_hook_is_configured ${zone} "ipv4-dhcp"; then
+		log ERROR "You can configure the ipv4-dhcp hook only once for a zone"
+		return ${EXIT_ERROR}
+	fi
+
 	while [ $# -gt 0 ]; do
 		case "${1}" in
 			--delay=*)
-- 
2.47.3