mwan3: add httping_ssl option

Till now we could only ping http targets on port 80. With this change by
adding the config boolean config option httping_ssl we could also ping
https ping targets on port 443.

Signed-off-by: Florian Eckert <fe@dev.tdt.de>

net/mwan3/files/usr/sbin/mwan3track

@@ -61,7 +61,7 @@ main() {
 	local recovery_interval down up size
 	local keep_failure_interval check_quality failure_latency
 	local recovery_latency failure_loss recovery_loss
-	local max_ttl
+	local max_ttl httping_ssl
 
 	[ -z "$5" ] && echo "Error: should not be started manually" && exit 0
 
@@ -75,6 +75,7 @@ main() {
 
 	config_load mwan3
 	config_get track_method $1 track_method ping
+	config_get_bool httping_ssl $1 httping_ssl 0
 	validate_track_method $track_method $SRC_IP || {
 		track_method=ping
 		if validate_track_method $track_method; then
@@ -149,7 +150,11 @@ main() {
 						result=$?
 					;;
 					httping)
-						httping -y $SRC_IP -c $count -t $timeout -q $track_ip &> /dev/null
+						if [ "$httping_ssl" -eq 1 ]; then
+							httping -y $SRC_IP -c $count -t $timeout -q "https://$track_ip" &> /dev/null
+						else
+							httping -y $SRC_IP -c $count -t $timeout -q "http://$track_ip" &> /dev/null
+						fi
 						result=$?
 					;;
 					nping-tcp)