50-config-from-mac

#!/bin/sh
set -e
set -u

mac=$(cat /sys/class/ieee80211/phy0/macaddress)

hostname=
channel_11a=
channel_11g=
if [ "$mac" = 60:e3:27:b8:16:ec ]; then
    hostname=cz-ap0
    channel_11g=6
elif [ "$mac" = 60:e3:27:ed:86:9a ]; then
    hostname=cz-ap1
    channel_11g=11
elif [ "$mac" = 78:8a:20:82:d6:bd ]; then
    hostname=cz-ap2
    channel_11a=48
    channel_11g=6
    htmode_11a=VHT80
elif [ "$mac" = 60:e3:27:ed:9b:b0 ]; then
    hostname=lz-ap0
    channel_11g=1
fi


# disable root password login
sed -i 's/^root.*$/root:*:0:0:99999:7:::/' /etc/shadow

uci set system.@system[0].hostname=$hostname
uci commit system
echo $(uci get system.@system[0].hostname) > /proc/sys/kernel/hostname

uci set dropbear.@dropbear[0].PasswordAuth='off'
uci set dropbear.@dropbear[0].RootPasswordAuth='off'
uci commit dropbear
/etc/init.d/dropbear restart

#WIFI_IFACES=$(uci show wireless | sed -nr 's/^wireless\.([^=]+)=wifi-iface*$/\1/p')
WIFI_DEVICES=$(uci show wireless | sed -nr 's/^wireless\.([^=]+)=wifi-device*$/\1/p')

for radio in $WIFI_DEVICES; do
    disabled=true
    if [ $(uci get wireless.$radio.hwmode) = '11a' ]; then
        # 5 GHz
        if [ -n "$channel_11a" ]; then
            uci set wireless.$radio.channel=$channel_11a
            uci set wireless.$radio.htmode=${htmode_11a:-HT20}
            disabled=false
        fi
    elif [ $(uci get wireless.$radio.hwmode) = '11g' ]; then
        # 2.4 GHz
        if [ -n "$channel_11g" ]; then
            uci set wireless.$radio.channel=$channel_11g
            disabled=false
        fi
    fi

    if $disabled; then
        uci set wireless.$radio.disabled=1
    else
        uci delete wireless.$radio.disabled || true
    fi
    uci set wireless.$radio.country=AT
done
uci commit wireless