change_wifi_parms

#!/bin/sh
# change_wifi_parms - change local wifi parms in as part of a cloud-wide update
#
# Copyright (C) 2012, Greg Johnson
# Released under the terms of the GNU GPL v2.0.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of 
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# $Id: change_wifi_parms,v 1.11 2012-02-22 18:55:24 greg Exp $

# this script updates the wifi parameters stored in non-volatile ram
# and reboots the router.  it is used in all boxes in the cloud when
# a user with proper authorization requests propagation of new wifi
# parms throughout the cloud.

ssid=""
channel=""
netmode=""
wep=""
securitymode2=""
wepkey=""
wepbits=""

debug=""

echo change_wifi_parms $* > /tmp/change_wifi_parms.db

while [ -n "$1" ]; do
    echo arg ">>$1<<"
    case "$1" in
    -s) ssid=$2;                                                       shift ;;
    -c) channel=$2;                                                    shift ;;
    -m) netmode=$2;                                                    shift ;;
    -w) wep=$2;                                                        shift ;;
    -k) wepkey=$2;                                                     shift ;;
    -b) wepbits=$2;                                                    shift ;;
    -d) debug=true;                                                          ;;
    -*) echo oops $1 spoo; exit 1                                            ;;
    *) shift                                                                 ;;
    esac
    shift
done

if [ -n "$ssid" ]; then
    echo set wl_ssid=$ssid >> /tmp/change_wifi_parms.db
    if [ -z "$debug" ]; then
        echo doing it >> /tmp/change_wifi_parms.db
        nvram set wl_ssid=$ssid
        nvram commit
    fi
fi

if [ -n "$channel" ]; then
    echo set wl_channel=$channel >> /tmp/change_wifi_parms.db
    if [ -z "$debug" ]; then
        echo doing it >> /tmp/change_wifi_parms.db
        nvram set wl_channel=$channel
        nvram commit
    fi
fi

if [ -n "$netmode" ]; then
    echo set wl_net_mode=$netmode >> /tmp/change_wifi_parms.db
    if [ -z "$debug" ]; then
        echo doing it >> /tmp/change_wifi_parms.db
        nvram set wl_net_mode=$netmode
        nvram commit
    fi
fi

if [ -n "$wep" ]; then
    echo set wl_wep=$wep >> /tmp/change_wifi_parms.db
    if [ -z "$debug" ]; then
        echo doing it >> /tmp/change_wifi_parms.db
        nvram set wl_wep=$wep
        nvram commit
    fi

    if [ "$wep" = "disabled" ]; then
        echo set security_mode2=disabled >> /tmp/change_wifi_parms.db
        if [ -z "$debug" ]; then
            echo doing it >> /tmp/change_wifi_parms.db
            nvram set security_mode2=disabled
            nvram commit
        fi
    else
        echo set security_mode2=wep >> /tmp/change_wifi_parms.db
        if [ -z "$debug" ]; then
            echo doing it >> /tmp/change_wifi_parms.db
            nvram set security_mode2=wep
            nvram commit
        fi
    fi
fi

if [ -n "$wepkey" ]; then
    echo set wl_key1=$wepkey >> /tmp/change_wifi_parms.db
    if [ -z "$debug" ]; then
        echo doing it >> /tmp/change_wifi_parms.db
        nvram set wl_key1=$wepkey
        nvram commit
    fi

    echo set wl_wep_buf=":$wepkey::::1" >> /tmp/change_wifi_parms.db
    if [ -z "$debug" ]; then
        echo doing it >> /tmp/change_wifi_parms.db
        nvram set wl_wep_buf=":$wepkey::::1"
        nvram commit
    fi
fi

if [ -n "$wepbits" ]; then
    echo set wl_wep_bit=$wepbits >> /tmp/change_wifi_parms.db
    if [ -z "$debug" ]; then
        echo doing it >> /tmp/change_wifi_parms.db
        nvram set wl_wep_bit=$wepbits
        nvram commit
    fi
fi

# do the router reboot

if [ -z "$debug" ]; then
    echo do the kill -HUP 1 >> /tmp/change_wifi_parms.db
    kill -HUP 1
fi