source: freewrt/package/broadcom-wl-util/files/wireless-broadcom.pre-up@ edfeadd

#!/bin/sh
#
# Wireless configuration script
# Copyright (c) 2006 Dirk Nehring <dnehring@freewrt.org>
#
[ "$IF_WIRELESS_TYPE" != "broadcom" ] && exit 0

#
# init driver
#
[ "${IFACE%%[0-9]*}" = "eth" ] && ip link set up dev $IFACE
wl radio on
wl infra 1
wl monitor 0
wl macmode 0
wl mac none
wl lazywds 0
wl up

# kill nas
pid="$(cat /var/run/nas.lan.pid 2>&-)"
[ -n "$pid" -a -d "/proc/$pid" ] && kill $pid

# get interface name if bridged
[ "$IF_WIRELESS_BRIDGE_IF" ] && ifname=$IF_WIRELESS_BRIDGE_IF

#
# check SSID
#
[ "$IF_WIRELESS_SSID" ] || exit 1

#
# set country
#
[ "$IF_WIRELESS_COUNTRY" ] && ( wl down; wl country $IF_WIRELESS_COUNTRY; wl up )

#
# set gmode
#
[ "$IF_WIRELESS_GMODE" ] && ( wl down; wl gmode $IF_WIRELESS_GMODE; wl up )

#
# set operation mode
#
case "$IF_WIRELESS_MODE" in
    ap)
        nas_auth="-A "
        wl ap 1
        ;;
    sta)
        # Bridging does not work in client mode.
        [ "$ifname" = "br0" ] && exit
        nas_auth="-S "
        wl ap 0
        # XXX TODO: "wl wet 1" when bridging
        ;;
    adhoc)
        wl ap 0
        wl infra 0
        wl join $IF_WIRELESS_SSID imode ibss
        ;;
    wds)
        [ "$IF_WIRELESS_WDS" ] || ( logger -t wireless "no wireless-wds entry found, aborting";exit 1;)
        wl ap 1
        ;;
    monitor)
        wl ap 0
        wl monitor 1
        ;;
    *)
        echo "Unknown operation mode '$IF_WIRELESS_MODE'"
        exit 1
        ;;
esac

#
# set isolate mode
#
[ "$IF_WIRELESS_ISOLATE" ] && wl ap_isolate $IF_WIRELESS_ISOLATE

#
# set macmode mode
#
[ "$IF_WIRELESS_MACMODE" ] && wl macmode $IF_WIRELESS_MACMODE

#
# set MAC addresses
#
[ "$IF_WIRELESS_MAC" ] && wl mac $IF_WIRELESS_MAC

#
# set WLAN channel
#
[ "$IF_WIRELESS_CHANNEL" ] && wl channel $IF_WIRELESS_CHANNEL

#
# set frameburst
#
[ "$IF_WIRELESS_FRAMEBURST" ] && wl frameburst $IF_WIRELESS_FRAMEBURST

#
# set afterburner
#
[ "$IF_WIRELESS_AFTERBURNER" ] && wl afterburner_override $IF_WIRELESS_AFTERBURNER

#
# encryption
#
case "$IF_WIRELESS_ENCRYPTION" in
    wep)
        crypto_num=1
        wl wep on
        wl tkip off
        wl aes off
        ;;
    tkip)
        crypto_num=2
        wl wep off
        wl tkip on
        wl aes off
        ;;
    aes)
        crypto_num=4
        wl wep off
        wl tkip off
        wl aes on
        ;;
    aes+tkip)
        crypto_num=6
        wl wep off
        wl tkip on
        wl aes on
        ;;
esac
wl wsec $crypto_num

#
# security "none"
#
[ "$IF_WIRELESS_SECURITY" = "none" ] && {
    wl wep 0
    wl wsec 0
    wl ssid $IF_WIRELESS_SSID

    [ "$IF_WIRELESS_MODE" = "sta" ] && wl join $IF_WIRELESS_SSID

    exit 0
}

#
# security "wep"
#
[ "$IF_WIRELESS_SECURITY" = "wep" ] && {
    wl wep 1
    wl eap off
    wl wpa_auth 0
    wl wsec 1

    [ "$IF_WIRELESS_MODE" = "sta" ] && {
        case "$IF_WIRELESS_AUTHORIZATION" in
            open)
                authorization="open"
                ;;
            shared)
                authorization="shared"
                ;;
            *)
                authorization="open"
                ;;
        esac
        
        wl join $IF_WIRELESS_SSID key $IF_WIRELESS_KEY1 amode $authorization
        exit 0
    } || {
        [ "$IF_WIRELESS_KEY1" ] && wl addwep 0 "$IF_WIRELESS_KEY1"
        [ "$IF_WIRELESS_KEY2" ] && wl addwep 1 "$IF_WIRELESS_KEY2"
        [ "$IF_WIRELESS_KEY3" ] && wl addwep 2 "$IF_WIRELESS_KEY3"
        [ "$IF_WIRELESS_KEY4" ] && wl addwep 3 "$IF_WIRELESS_KEY4"
        [ "$IF_WIRELESS_KEY" ] && wl primary_key "$(($IF_WIRELESS_KEY-1))"
        wl ssid $IF_WIRELESS_SSID
    }
    exit 0
}

# wpa rekeying
gtk_rekey=$IF_WIRELESS_WPA_GTK_REKEY
gtk_rekey=${gtk_rekey#0}
gtk_rekey=${gtk_rekey:-3600}

#
# security "wpa-psk"
#
[ "$IF_WIRELESS_SECURITY" = "wpa-psk" ] && {
    wl eap off
    case "$IF_WIRELESS_AUTHORIZATION" in
        psk)
            auth=4
            ;;
        psk2)
            auth=128
            ;;
        "psk psk2")
            auth=132
            ;;
    esac
    wl wpa_auth $auth
    wl ssid $IF_WIRELESS_SSID
    [ "$IF_WIRELESS_MODE" != "wds" ] && {
    if [ "$IF_WIRELESS_BRIDGE_IF" ] ; then
        echo "/usr/sbin/nas -P /var/run/nas.lan.pid ${ifname:+ -l $ifname} -H 34954 -i $IFACE $nas_auth -m $auth -k \"$IF_WIRELESS_WPA_KEY\" -s \"$IF_WIRELESS_SSID\" -w $crypto_num -g $gtk_rekey &" >/var/run/nas.lan.cmd
    else
        /usr/sbin/nas -P /var/run/nas.lan.pid ${ifname:+ -l $ifname} -H 34954 -i $IFACE $nas_auth -m $auth -k "$IF_WIRELESS_WPA_KEY" -s "$IF_WIRELESS_SSID" -w $crypto_num -g $gtk_rekey &
    fi
    }
    exit 0
}

#
# security "8021x"
#
[ "$IF_WIRELESS_SECURITY" = "8021x" ] && {
    case "$IF_WIRELESS_AUTHORIZATION" in
        wep)
            wl wpa_auth 0
            /usr/sbin/nas -P /var/run/nas.lan.pid ${ifname:+ -l ${ifname}} -H 34954 -i $IFACE &
            [ "$IF_WIRELESS_BRIDGE_IF" ] && echo "/usr/sbin/nas -P /var/run/nas.lan.pid ${ifname:+ -l ${ifname}} -H 34954 -i $IFACE &" >/var/run/nas.lan.cmd
            exit 0
            ;;
        wpa)
            auth=2
            ;;
        wpa2)
            auth=64
            ;;
        "wpa wpa2")
            auth=66
            ;;
    esac
    wl wpa_auth $auth
    wl ssid $IF_WIRELESS_SSID

    if [ "$IF_WIRELESS_BRIDGE_IF" ] ; then
        echo "/usr/sbin/nas -P /var/run/nas.lan.pid ${ifname:+ -l $ifname} -H 34954 -i $IFACE -A -m $auth -r \"$IF_WIRELESS_RADIUS_KEY\" -h $IF_WIRELESS_RADIUS_IPADDR -p ${IF_WIRELESS_RADIUS_PORT:-1812} -t 36000 -s \"$IF_WIRELESS_SSID\" -w $crypto_num -g $gtk_rekey &" >/var/run/nas.lan.cmd
    else
        /usr/sbin/nas -P /var/run/nas.lan.pid ${ifname:+ -l $ifname} -H 34954 -i $IFACE -A -m $auth -r "$IF_WIRELESS_RADIUS_KEY" -h $IF_WIRELESS_RADIUS_IPADDR -p ${IF_WIRELESS_RADIUS_PORT:-1812} -t 36000 -s "$IF_WIRELESS_SSID" -w $crypto_num -g $gtk_rekey &
    fi
    exit 0
}

exit 0