[BCM7425] An wireless script for wpa-supplicant

wpa-supplicant 설정을 좀더 편하게 하기 위한 script를 간단히 만들어 보았다. 

#!/bin/sh

function usage {

    echo "Usage : wireless.sh [authentication] [ssid] [password]"

    echo " - authentication : (1)wpa, (2)wep, (3)none"

    echo " - ssid : AP's SSID"

    echo " - password : AP's KEY"

    echo " - example : wireless.sh wpa steo 1234567890"

}

function reset_dev {

    echo "->Reset wifi device."

    iwconfig wlan0 essid ""

    killall -q udhcpc

    killall -q wpa_supplicant

    iwconfig wlan0 essid ""

    sleep 1

}

function auth_wpa {

    echo "->SSID: $1, KEY: $2"

    reset_dev

    wpa_passphrase "$1" "$2" > /etc/wpa_supplicant/wpa_supplicant.conf

    iwconfig wlan0 essid "$1"

    wpa_supplicant -iwlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf &

    udhcpc -i wlan0

}

function auth_wep {

    echo "->SSID: $1, KEY: $2"

    reset_dev

    iwconfig wlan0 essid "$1"

    iwconfig wlan0 key s:$2

    iwconfig wlan0 essid "$1"

    udhcpc -i wlan0

}

function auth_none {

    echo "->SSID: $1"

    reset_dev

    iwconfig wlan0 essid "$1"

    iwconfig wlan0 enc off

    iwconfig wlan0 essid "$1"

    udhcpc -i wlan0

}

case $1 in

    "wpa")

        auth_wpa $2 $3

        ;;

    "wep")

        auth_wep $2 $3

        ;;

    "none")

        auth_none $2

        ;;

    *)

        usage

        ;;

esac