From 9c6677d2fd23a74027fe86ed0072035a2e5b599b Mon Sep 17 00:00:00 2001
From: Richard Fuchs <rfuchs@sipwise.com>
Date: Wed, 27 Mar 2019 10:32:39 -0400
Subject: [PATCH] TT#56007 TT#55864 leave xt_RTPENGINE loaded after stop

There might be a firewall script that installs and manages the
xt_RTPENGINE rules even if rtpengine isn't running at the point. Leave
the module loaded if possible and unload it only for a package removal
or upgrade.

Change-Id: I5a35e965379aebd757a45883f82bbcb5fa2412e8
---
 debian/ngcp-rtpengine-iptables-setup    | 1 -
 debian/ngcp-rtpengine-kernel-dkms.prerm | 2 ++
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/debian/ngcp-rtpengine-iptables-setup b/debian/ngcp-rtpengine-iptables-setup
index 252939cb3..e4d537a09 100755
--- a/debian/ngcp-rtpengine-iptables-setup
+++ b/debian/ngcp-rtpengine-iptables-setup
@@ -81,7 +81,6 @@ firewall_teardown()
 
   iptables -D rtpengine -p udp -j RTPENGINE --id "$TABLE" 2>/dev/null
   ip6tables -D rtpengine -p udp -j RTPENGINE --id "$TABLE" 2>/dev/null
-  rmmod $MODNAME 2>/dev/null
 }
 
 case "$1" in
diff --git a/debian/ngcp-rtpengine-kernel-dkms.prerm b/debian/ngcp-rtpengine-kernel-dkms.prerm
index e58a7f13a..be28c80db 100644
--- a/debian/ngcp-rtpengine-kernel-dkms.prerm
+++ b/debian/ngcp-rtpengine-kernel-dkms.prerm
@@ -4,6 +4,7 @@ set -e
 
 package=ngcp-rtpengine-kernel-dkms
 name=ngcp-rtpengine
+modname=xt_RTPENGINE
 
 version=$(dpkg-query -W -f="\${Version}" "$package" \
         |rev|cut -d- -f2-|rev|cut -d':' -f2|tr -d "\n")
@@ -17,6 +18,7 @@ fi
 # make sure it's not running
 if [ -x /etc/init.d/ngcp-rtpengine-daemon ] ; then
 	invoke-rc.d ngcp-rtpengine-daemon stop || true
+	rmmod "$modname" 2>/dev/null || true
 fi
 
 if [ "$VIRT" = "yes" ]; then