wifi-ap

#!/bin/bash
#script to start/stop hostapd, dnsmasq, add/remove iptables rule

set -e
exec 3>&1
exec 2>&1 >> /tmp/wifi-ap

function print_help(){
    echo "Start/Stop Software Access Point"
    echo
    echo "Usage `basename $0` options..."
    echo "wifi-ap on to start Software AP"
    echo "wifi-ap off to stop Software AP"
    echo
    echo "log-file - /tmp/wifi-ap"
    echo
}
if [ $# = 0 ]; then
    print_help >&3
        exit 0
fi

if [ $1 = on ]; then
        ifconfig wlan0 192.168.2.1
        service dnsmasq start
        sysctl net.ipv4.ip_forward=1
        iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
        service hostapd start
        notify-send --expire-time=4000 "Software Access Point" "<b>start</b>"
    exit 0
fi

if [ $1 = off ]; then
        service dnsmasq stop
        service hostapd stop
        ifconfig wlan0 192.168.1.4
        sysctl net.ipv4.ip_forward=0
        iptables -D POSTROUTING -t nat -o ppp0 -j MASQUERADE
        notify-send --expire-time=4000 "Software Access Point" "<b>stop</b>"
    exit 0
fi