與網絡斷開連接時創建 adhoc 網絡

Question

我正在使用 ArchLinux，並且希望在與家庭網路的連線中斷（或家庭網路在啟動時無法連線）時自動建立 AdHoc 網路。我怎樣才能實現這個目標？

我在網路上發現這可以解決啟動時的問題，但無法解決網路斷開連線時的問題：

# RPi Network Conf Bootstrapper

createAdHocNetwork(){
    echo "Creating ad-hoc network"
    ifconfig wlan0 down
    iwconfig wlan0 mode ad-hoc
    iwconfig wlan0 key aaaaa11111 #WEP key
    iwconfig wlan0 essid RPi      #SSID
    ifconfig wlan0 10.0.0.200 netmask 255.255.255.0 up
    /usr/sbin/dhcpd wlan0
    echo "Ad-hoc network created"
}

echo "================================="
echo "RPi Network Conf Bootstrapper 0.1"
echo "================================="
echo "Scanning for known WiFi networks"
ssids=( 'MyWlan' 'MyOtherWlan' )
connected=false
for ssid in "${ssids[@]}"
do
    if iwlist wlan0 scan | grep $ssid > /dev/null
    then
        echo "First WiFi in range has SSID:" $ssid
        echo "Starting supplicant for WPA/WPA2"
        wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf     > /dev/null 2>&1
        echo "Obtaining IP from DHCP"
        if dhclient -1 wlan0
        then
            echo "Connected to WiFi"
            connected=true
            break
        else
            echo "DHCP server did not respond with an IP lease (DHCPOFFER)"
            wpa_cli terminate
            break
       fi
    else
        echo "Not in range, WiFi with SSID:" $ssid
    fi
done

if ! $connected; then
    createAdHocNetwork
fi

exit 0

wicd另一邊提供（前/後）（dis）連接腳本，但我不知道啟動