#!/bin/sh export LC_ALL=C if [ "$2" = "up" ]; then /sbin/ip route list dev "$1" | grep -q '^default' && /usr/bin/chronyc -a online > /dev/null 2>&1 fi if [ "$2" = "down" ]; then /sbin/ip route list | grep -q '^default' || /usr/bin/chronyc -a offline > /dev/null 2>&1 fi exit 0