. lib/generic.sh
TUNNEL_NAME="tunnel_test_ip"
+KMODS="ip6_gre ip6_tunnel ip_gre ip_tunnel gre"
+
+# unload kernel modules to remove dummy interfaces only if they were not in use beforehand
+kmods_remove=
+# note that checkbashism reports command -v, but dash supports it and it's POSIX 2008 compliant
+if command -v lsmod >/dev/null 2>&1 && command -v rmmod >/dev/null 2>&1; then
+ for i in $KMODS; do
+ lsmod | grep -q "^$i" || kmods_remove="$kmods_remove $i";
+ done
+fi
ts_log "[Testing add/del tunnels]"
ts_ip "$0" "Add GRE tunnel over IPv6" tunnel add name $TUNNEL_NAME mode ip6gre local dead:beef::1 remote dead:beef::2
ts_ip "$0" "Del GRE tunnel over IPv6" tunnel del $TUNNEL_NAME
+for mod in $kmods_remove; do
+ sudo rmmod "$mod"
+done