From f6b1f8ffabeec759fc2374f2d00d7c46165a4ad3 Mon Sep 17 00:00:00 2001
From: "Ycarus (Yannick Chabanois)" <ycarus@zugaina.org>
Date: Thu, 5 Nov 2020 14:16:51 +0100
Subject: [PATCH] Fix issue with glorytun MTU

---
 .../share/omr/post-tracking.d/post-tracking   | 44 ++++++++++---------
 1 file changed, 24 insertions(+), 20 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 551f6dc96..d837d2623 100755
--- a/mptcp/files/usr/share/omr/post-tracking.d/post-tracking
+++ b/mptcp/files/usr/share/omr/post-tracking.d/post-tracking
@@ -433,27 +433,31 @@ if [ "$OMR_TRACKER_INTERFACE" = "glorytun" ] || [ "$OMR_TRACKER_INTERFACE" = "om
 		fi
 		uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE="interface"
 		uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.latency="$OMR_TRACKER_LATENCY"
-		if [ -n "$(uci -q get network.$OMR_TRACKER_INTERFACE.mtu)" ]; then
-			mtu=$(uci -q get network.$OMR_TRACKER_INTERFACE.mtu)
-			uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.mtu=$mtu
-			ip link set dev $OMR_TRACKER_DEVICE mtu $mtu > /dev/null 2>&1
-			uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.lc=$(date +"%s")
-		elif [ -z "$(uci -q get openmptcprouter.$OMR_TRACKER_INTERFACE.mtu)" ]; then
-			if [ -n "$serverip" ] && [ "$serverip" != "127.0.0.1" ]; then 
-				local mtu=$(omr-mtu $OMR_TRACKER_DEVICE_IP $serverip)
-				#local mtu=$(omr-mtu $OMR_TRACKER_DEVICE_IP 8.8.8.8)
-				[ -n "$mtu" ] && {
-					uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.mtu=$mtu
-					ip link set dev $OMR_TRACKER_DEVICE mtu $mtu > /dev/null 2>&1
-					uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.lc=$(date +"%s")
-				}
+		if [ "$(uci -q get glorytun.vpn.enable)" != "1" ]; then
+			if [ -n "$(uci -q get network.$OMR_TRACKER_INTERFACE.mtu)" ]; then
+				mtu=$(uci -q get network.$OMR_TRACKER_INTERFACE.mtu)
+				uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.mtu=$mtu
+				ip link set dev $OMR_TRACKER_DEVICE mtu $mtu > /dev/null 2>&1
+				uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.lc=$(date +"%s")
+			elif [ -z "$(uci -q get openmptcprouter.$OMR_TRACKER_INTERFACE.mtu)" ]; then
+				if [ -n "$serverip" ] && [ "$serverip" != "127.0.0.1" ]; then 
+					local mtu=$(omr-mtu $OMR_TRACKER_DEVICE_IP $serverip)
+					#local mtu=$(omr-mtu $OMR_TRACKER_DEVICE_IP 8.8.8.8)
+					[ -n "$mtu" ] && {
+						uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.mtu=$mtu
+						ip link set dev $OMR_TRACKER_DEVICE mtu $mtu > /dev/null 2>&1
+						uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.lc=$(date +"%s")
+					}
+				else
+					local mtu=$(omr-mtu $OMR_TRACKER_DEVICE_IP 1.1.1.1)
+					[ -n "$mtu" ] && {
+						uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.mtu=$mtu
+						ip link set dev $OMR_TRACKER_DEVICE mtu $mtu > /dev/null 2>&1
+						uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.lc=$(date +"%s")
+					}
+				fi
 			else
-				local mtu=$(omr-mtu $OMR_TRACKER_DEVICE_IP 1.1.1.1)
-				[ -n "$mtu" ] && {
-					uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.mtu=$mtu
-					ip link set dev $OMR_TRACKER_DEVICE mtu $mtu > /dev/null 2>&1
-					uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.lc=$(date +"%s")
-				}
+				uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.lc=$(date +"%s")
 			fi
 		else
 			uci -q set openmptcprouter.$OMR_TRACKER_INTERFACE.lc=$(date +"%s")