From 9103688982efa53f4aff775f3213c3aaa05ee3cb Mon Sep 17 00:00:00 2001
From: "Ycarus (Yannick Chabanois)" <ycarus@zugaina.org>
Date: Thu, 5 Mar 2020 17:30:04 +0100
Subject: [PATCH] Fix when gateway is empty

---
 mptcp/files/usr/share/omr/post-tracking.d/post-tracking | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mptcp/files/usr/share/omr/post-tracking.d/post-tracking b/mptcp/files/usr/share/omr/post-tracking.d/post-tracking
index 70260b3b9..08d13a604 100755
--- a/mptcp/files/usr/share/omr/post-tracking.d/post-tracking
+++ b/mptcp/files/usr/share/omr/post-tracking.d/post-tracking
@@ -269,7 +269,7 @@ if [ "$OMR_TRACKER_STATUS" = "ERROR" ]; then
 fi
 
 if [ "$OMR_TRACKER_INTERFACE" = "glorytun" ] || [ "$OMR_TRACKER_INTERFACE" = "omrvpn" ]; then
-	if [ "$default_gw" != "$OMR_TRACKER_DEVICE_GATEWAY" ] || [ "$default_gw" = "" ]; then
+	if ([ "$default_gw" != "$OMR_TRACKER_DEVICE_GATEWAY" ] || [ "$default_gw" = "" ]) && [ "$OMR_TRACKER_DEVICE_GATEWAY" != "" ]; then
 		_log "Tunnel up : Replace default route by $OMR_TRACKER_DEVICE_GATEWAY dev $OMR_TRACKER_DEVICE"
 		ip route replace default scope global nexthop via $OMR_TRACKER_DEVICE_GATEWAY dev $OMR_TRACKER_DEVICE
 	fi
@@ -339,7 +339,7 @@ fi
 multipath_config=$(uci -q get "network.$OMR_TRACKER_INTERFACE.multipath")
 [ -z "$multipath_config" ] && multipath_config=$(uci -q get "openmptcprouter.$OMR_TRACKER_INTERFACE.multipath" || echo "off")
 if [ "$multipath_config" = "master" ]; then
-	if [ "$default_gw" != "$OMR_TRACKER_DEVICE_GATEWAY" ] || [ "$default_gw" = "" ]; then
+	if ([ "$default_gw" != "$OMR_TRACKER_DEVICE_GATEWAY" ] || [ "$default_gw" = "" ]) && [ "$OMR_TRACKER_DEVICE_GATEWAY" != "" ]; then
 		omrvpn_intf=$(uci -q get "network.omrvpn.ifname" || echo "tun")
 		if [ -n "$omrvpn_intf" ] && [ "$(ip route show default | awk '/default/ {print $5}' | grep $omrvpn_intf)" = "" ]; then
 			_log "Master up : Replace default route by $OMR_TRACKER_DEVICE_GATEWAY dev $OMR_TRACKER_DEVICE"