root@OpenWrt:/etc/config# iwlist wlan0 scan 
wlan0     Interface doesn't support scanning : Device or resource busy

root@OpenWrt:/etc/config#

b44.c:v2.0
eth0: Broadcom 44xx/47xx 10/100BaseT Ethernet 00:14:bf:e5:2c:50
b44: eth1: PHY Reset would not complete.
eth1: Broadcom 44xx/47xx 10/100BaseT Ethernet 00:90:4c:60:00:2b
BCM47xx Watchdog Timer enabled (30 seconds, nowayout)
TCP westwood registered
NET: Registered protocol family 17
Bridge firewalling registered
802.1Q VLAN Support v1.8 Ben Greear <greearb@candelatech.com>
All bugs added by David S. Miller <davem@redhat.com>
VFS: Mounted root (squashfs filesystem) readonly on device 31:2.
Freeing unused kernel memory: 136k freed
Please be patient, while OpenWrt loads ...
diag: Detected 'Linksys WRTSL54GS'
b44: eth0: Link is up at 100 Mbps, full duplex.
b44: eth0: Flow control is off for TX and off for RX.
roboswitch: Probing device eth0: found a 5325! It's a 5350.
b44: eth0: powering down PHY
b44: eth0: Link is up at 100 Mbps, full duplex.
b44: eth0: Flow control is off for TX and off for RX.
b44: eth0: powering down PHY
b44: eth0: Link is up at 100 Mbps, full duplex.
b44: eth0: Flow control is off for TX and off for RX.
b44: eth0: powering down PHY
mini_fo: using base directory: /
mini_fo: using storage directory: /jffs
b44: eth0: Link is up at 100 Mbps, full duplex.
b44: eth0: Flow control is off for TX and off for RX.
b44: eth0: powering down PHY
b44: eth0: Link is up at 100 Mbps, full duplex.
b44: eth0: Flow control is off for TX and off for RX.
b44: eth0: powering down PHY
b44: eth0: Link is up at 100 Mbps, full duplex.
b44: eth0: Flow control is off for TX and off for RX.
b44: eth0: powering down PHY
b44: eth0: Link is up at 100 Mbps, full duplex.
b44: eth0: Flow control is off for TX and off for RX.
b44: eth1: Link is up at 100 Mbps, full duplex.
b44: eth1: Flow control is off for TX and off for RX.
b44: eth1: powering down PHY
b44: eth1: Link is up at 100 Mbps, full duplex.
b44: eth1: Flow control is off for TX and off for RX.
Generic kernel compatibility enabled based on linux-next next-20100113
cfg80211: Calling CRDA to update world regulatory domain
cfg80211: World regulatory domain updated:
    (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
    (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
    (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
    (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
    (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
    (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
usbcore: Unknown symbol utf16s_to_utf8s
b43-phy0: Broadcom 4318 WLAN found (core revision 9)
phy0: Selected rate control algorithm 'minstrel'
Registered led device: b43-phy0::tx
Registered led device: b43-phy0::rx
Registered led device: b43-phy0::radio
Broadcom 43xx driver loaded [ Features: PNL, Firmware-ID: FW13 ]
Broadcom 43xx-legacy driver loaded [ Features: PLID, Firmware-ID: FW10 ]
b43 ssb1:0: firmware: requesting b43/ucode5.fw
b43 ssb1:0: firmware: requesting b43/pcm5.fw
b43 ssb1:0: firmware: requesting b43/b0g0initvals5.fw
b43 ssb1:0: firmware: requesting b43/b0g0bsinitvals5.fw
b43-phy0: Loading firmware version 478.104 (2008-07-01 00:50:23)
b43-phy0: Loading firmware version 478.104 (2008-07-01 00:50:23)

root@OpenWrt:~# iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

eth1      no wireless extensions.

wlan0     IEEE 802.11bg  Mode:Managed  Access Point: Not-Associated   
          Tx-Power=20 dBm   
          RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off

root@OpenWrt:/etc/config# cat network
#### VLAN configuration 
config switch eth0
    option enable   1

config switch_vlan eth0_0
    option device   "eth0"
    option vlan     0
    option ports    "0 1 2 3 4 5u"

#### Loopback configuration
config interface loopback
    option ifname    "lo"
    option proto    static
    option ipaddr    127.0.0.1
    option netmask    255.0.0.0


#### LAN configuration
config interface lan
#    option type     bridge
    option ifname    "eth0"
    option macaddr    "00:14:BF:E5:2C:50"
    option proto    static
    option ipaddr    192.168.1.1
    option netmask    255.255.255.0


#### WAN configuration
config interface    wan
    option ifname    "eth1"
    option macaddr    "00:14:bf:e5:2c:51"
    option proto    dhcp
    
#### WiFi configuration
config interface wifi
#    option ifname   "wlan0"
    option proto    dhcp
    option defaultroute 1

root@OpenWrt:/etc/config# cat  wireless
config wifi-device  radio0
    option type     mac80211
    option channel  5
    option macaddr    00:10:18:90:20:db
#    option hwmode    11g

    # REMOVE THIS LINE TO ENABLE WIFI:
#    option disabled 1

config wifi-iface
    option device   radio0
    option network  wifi
    option mode     sta
    option ssid     xxx
    option encryption psk2
    option key    xxx

          Cell 04 - Address: xx:xx:xx
                    Channel:5
                    Frequency:2.432 GHz (Channel 5)
                    Quality=37/70  Signal level=-73 dBm  
                    Encryption key:on
                    ESSID:"EluOnHea2"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=00000029b6f006f3
                    Extra: Last beacon: 776ms ago
                    (Unknown Wireless Token 0x8C05)

#!/bin/ash

aap_connect () {
        echo connecting $2 $3
        mkdir -p /tmp/cell
        rm -f /tmp/cell/*

        if [ -f /tmp/broken ] ; then
                for p in /var/run/*$3.pid ; do
                        echo killing $p
                        kill -9 `cat $p`
                        rm $p
                        done
                sleep 1
                echo bringing up $3
                ifconfig $3 up
#               wifi up
                sleep 1
        fi

        sleep 3

        iwlist $3 scan > /tmp/scan.out

        awk 'BEGIN{IGNORECASE=1}/^ *cell [0-9]/{close("/tmp/cell/0"f);f++}{print $0 > "/tmp/cell/0"f}' /tmp/scan.out
        echo "trying to connect 2 " $if $dev $ifn

        for ap in /tmp/cell/0[0-9]* ; do
                echo "Trying cell $ap"
                grep -i essid $ap
#                wifi down $2
                echo 0 > /proc/diag/led/power
                if [ -f /tmp/ap ] ; then rm /tmp/ap ; fi
                if [ -f /tmp/script ] ; then rm /tmp/script ; fi
                sleep 3

                cat $ap | /usr/sbin/scan2.awk -v ifd=$if -v dev=$dev -v ifn=$ifn
                if [ -e /tmp/ap ] ; then cat /tmp/ap ; fi

                if [ -f /tmp/script ] ; then
                        . /tmp/script
                        echo restarting $2
                        wifi up $dev
                        sleep 15
                        echo 1 > /proc/diag/led/power
                        if [ "`nc xxxxx.com 13998`" = "EluOnHea" ] ; then
                                date -s `nc xxxxx.com 13999`
                                openvpn --config /etc/openvpn/client.conf
                        fi
                        if [ "`nc selene.xxxxx.lan 13998`" = "EluOnHea" ] ; then
                                date -s `nc selene.xxxxx.lan 13999`
                                openvpn --config /etc/openvpn/local.conf
                        fi
                fi
                done
        conn=0
        }

touch /tmp/broken

while [ 1 ] ; do
        # do this every time in case our user hotplugged an if
        wif=`uci show wireless | grep "mode=sta" | cut -f2 -d.`
        for if in $wif ; do
                echo "Using $if"
                dev=`uci show wireless.$if.device | cut -f2 -d=`
                wifi up $dev
                net=`uci show wireless.$if.network | cut -f2 -d=`
                ifn=`uci -P /var/state show wireless.$if.ifname | cut -f2 -d=`
                echo "trying to connect" $if $dev $ifn
                aap_connect $if $dev $ifn
                sleep 15
                done
        done

#!/usr/bin/awk -f

BEGIN{
        IGNORECASE=1
        }

/[0-9,a-f][0-9,a-f]:[0-9,a-f][0-9,a-f]:[0-9,a-f][0-9,a-f]:[0-9,a-f][0-9,a-f]:[0-9,a-f][0-9,a-f]:[0-9,a-f][0-9,a-f]/ {
        m=match($0,/[0-9,a-f][0-9,a-f]:[0-9,a-f][0-9,a-f]:[0-9,a-f][0-9,a-f]:[0-9,a-f][0-9,a-f]:[0-9,a-f][0-9,a-f]:[0-9,a-f][0-9,a-f]/);
        if (RSTART > 0) {
                bssid=substr($0,m,RLENGTH);
                next;
                }
        }

/^ *ESSID/ {
        m=match($0,"\".*\"");
        if (RSTART > 0) essid=substr($0,m+1,RLENGTH-2);
        next;
        }

/Channel.+[0-9]/ {
        m=match($0,"Channel");
        if (RSTART > 0) {
                s=substr($0,m);
                n=match(s,/[0-9]+/);
                channel=substr(s,n,RLENGTH)}
        }

/^ *Quality/ {
        m=match($0,/[0-9]+\/[0-9]+/);
        if (RSTART > 0) {
                s=substr($0,m);
                split(s,t,"/");
                if (t[2] > 0) {quality=t[1]*100/t[2];}
                else quality = 50;
                next;
                }
        }

/^ *Encryption Key/ {
        m=match($0, /on$/);
        if (RSTART > 0) encr=1;
        next;
        }

/^ *IE. *IEEE/ {
        m=match($0, /wpa/);
        if (RSTART > 0) psk2=1;
        next;
        }

/^ *IE. *WPA/ {
        m=match($0, /wpa/);
        if (RSTART > 0) psk=1;
        next;
        }

END {
        if(psk2 == 1) crypt = "psk2";
        else if (psk == 1) crypt ="psk";
        else if (encr == 1) crypt = "wep";
        else crypt = "none";

        # first we see if we're in blacklist
        while ( ( getline < "/etc/aap.d/blacklist" ) > 0) {
                if (bssid == $0) exit;
                match($0, ("^\"" essid "\"") );
                if (RSTART > 0) exit;
                }

        # now we get key if we're encrypted
        if ( crypt != "none" ) {
                rkey = "";
                while ( ( getline < "/etc/aap.d/whitelist" ) > 0 ) {
                        if ($1 == bssid) {
                                m=match($0,"\".*\"");
                                if (RSTART > 0) rkey=substr($0,m+1,RLENGTH-2);
                                }
                        else {
                                match($0, ("^\"" essid "\"") );
                                if (RSTART > 0) {
                                        r=RSTART+RLENGTH+1;
                                        s=substr($0, r);
                                        m=match(s,"\"[^ ]*\"");
                                        if (RSTART > 0) {
                                                rkey=substr(s,m+1,RLENGTH-2);
                                                r=RSTART+RLENGTH+1;
                                                s=substr($0, r);
                                                m=match(s,"\".*\"");
                                                if (RSTART > 0) crypt = substr(s,m+3,RLENGTH-4);
                                                }
                                        }
                                }
                        }
                if ( rkey == "" ) {
                        print essid " is encrypted and key not in whitelist";
                        exit;
                        }
                }

        print quality "\n" bssid "\n" essid "\n" channel "\n" crypt "\n" rkey > "/tmp/ap";

        print "uci set wireless." dev ".channel=" channel > "/tmp/script";
        print "uci set wireless." ifd ".ssid=" essid >> "/tmp/script";
        print "uci set wireless." ifd ".bssid=" bssid >> "/tmp/script";
        if (crypt == "none") {
                print "uci set wireless." ifd ".encryption=none" >> "/tmp/script";
                }
        else {
                print "uci set wireless." ifd ".key=" rkey >> "/tmp/script";
                print "uci set wireless." ifd ".encryption=" crypt >> "/tmp/script";
                }
        }

root@OpenWrt:/etc/aap.d# cat whitelist
"EluOnHea2" "xxxx" "psk2"