gistfile1.txt

#!/bin/bash
export PATH="/bin:/usr/bin:/usr/local/bin:/sbin:/usr/sbin:/usr/local/sbin"
check_state(){
    DGW=$(route -n | grep "^0.0.0.0 " | awk '{print $2}')
    if [ -z "${DGW}" ]; then
        echo 4
        return;
    fi
    SA_COUNT=$(racoonctl show-sa isakmp| grep -v "^Destination" | wc -l)
    if [ "${SA_COUNT}" -lt 1 ]; then
        echo 5
        return;
    fi
    ping -w1 -c1 10.100.0.6  > /dev/null 2>&1
    if [ $? -ne 0 ];then 
        echo 6
        return;
    fi
    echo 0
    return;
}

while [ 1 ];do
    if [ -f /tmp/current_error_level ]; then
        ERROR_LEVEL=$(cat /tmp/current_error_level)
        if [ -z "${ERROR_LEVEL}" ];then
            echo 0 > /dev/error_led
            ERROR_LEVEL=0
        fi
        export COUNT=0;
        export ERROR=1;
        export MAX=${ERROR_LEVEL};
        while [ "${COUNT}" -lt "${MAX}" ]; do
            if [ "${ERROR}" -eq "1" ];then
                export ERROR=0
            else
                export ERROR=1;
                export COUNT=$(expr ${COUNT} + 1);
            fi
            echo $ERROR > /dev/error_led;
            sleep 0.4
        done;
        echo 0 > /dev/error_led
        sleep 3
    fi
    check_state > /tmp/current_error_level
done