@ -1,5 +1,4 @@
#!/bin/sh
set -x
append DRIVERS "atheros"
scan_atheros( ) {
@ -20,15 +19,22 @@ scan_atheros() {
; ;
wds)
config_get addr " $vif " bssid
${ addr : +append wds " $addr " }
config_get ssid " $vif " ssid
[ -z " $addr " -a -n " $ssid " ] && {
config_set " $vif " wds 1
config_set " $vif " mode sta
mode = "sta"
addr = " $ssid "
}
${ addr : +append $mode " $vif " }
; ;
*) echo " $device ( $vif ): Invalid mode, ignored. " ; continue ; ;
esac
done
case " ${ adhoc : +1 } : ${ sta : + } : ${ ap +1 } " in
case " ${ adhoc : +1 } : ${ sta : + 1 } : ${ ap +1 } " in
# valid mode combinations
1::) ; ;
1::) wds = "" ; ;
:1:1) config_set " $device " nosbeacon 1; ; # AP+STA, can't use beacon timers for STA
:1:) ; ;
::1) ; ;
@ -36,13 +42,84 @@ scan_atheros() {
*) echo " $device : Invalid mode combination in config " ; return 1; ;
esac
config_set " $device " vifs " ${ ap : + $ap } ${ adhoc : + $adhoc } ${ sta : + $sta } "
config_set " $device " vifs " ${ ap : + $ap } ${ adhoc : + $adhoc } ${ sta : + $sta } ${ wds : + $wds } "
}
hostapd_setup_vif( ) {
local vif = " $1 "
local driver = " $2 "
local hostapd_cfg =
# Examples:
# psk-mixed/tkip => WPA1+2 PSK, TKIP
# wpa-psk2/tkip+aes => WPA2 PSK, CCMP+TKIP
# wpa2/tkip+aes => WPA2 RADIUS, CCMP+TKIP
# ...
# TODO: move this parsing function somewhere generic, so that
# later it can be reused by drivers that don't use hostapd
[ -z " $adhoc " ] && config_set " $device " wds " $wdsifs "
# crypto defaults: WPA2 vs WPA1
case " $enc " in
wpa2*| WPA2*| *PSK2*| *psk2*)
wpa = 2
crypto = "CCMP"
; ;
*mixed*)
wpa = 3
crypto = "CCMP TKIP"
; ;
*)
wpa = 1
crypto = "TKIP"
; ;
esac
# explicit override for crypto setting
case " $enc " in
*tkip+aes| *TKIP+AES| *tkip+ccmp| *TKIP+CCMP) crypto = "CCMP TKIP" ; ;
*tkip| *TKIP) crypto = "TKIP" ; ;
*aes| *AES| *ccmp| *CCMP) crypto = "CCMP" ; ;
esac
# use crypto/auth settings for building the hostapd config
case " $enc " in
*psk*| *PSK*)
config_get psk " $vif " key
append hostapd_cfg " wpa_passphrase= $psk " " $N "
; ;
*wpa*| *WPA*)
# FIXME: add wpa+radius here
; ;
*)
return 0;
; ;
esac
config_get ifname " $vif " ifname
config_get bridge " $vif " bridge
config_get ssid " $vif " ssid
cat > /var/run/hostapd-$ifname .conf <<EOF
driver = $driver
interface = $ifname
${ bridge : +bridge= $bridge }
ssid = $ssid
debug = 0
wpa = $wpa
wpa_pairwise = $crypto
$hostapd_cfg
EOF
hostapd -B /var/run/hostapd-$ifname .conf
}
disable_atheros( ) (
local device = " $1 "
# kill all running hostapd and wpa_supplicant processes that
# are running on atheros vifs
for pid in ` pidof hostapd wpa_supplicant` ; do
grep ath /proc/$pid /cmdline >/dev/null && \
kill $pid
done
include /lib/network
cd /proc/sys/net
@ -50,16 +127,17 @@ disable_atheros() (
grep " $device " " $dev /%parent " >/dev/null 2>/dev/null && {
ifconfig " $dev " down
unbridge " $dev "
wlanconfig $dev destroy
wlanconfig " $dev "
}
done
return 0
)
enable_atheros( ) {
config_get channel " $device " channel
config_get wds " $device " wds
config_get vifs " $device " vifs
disable_atheros " $device "
for vif in $vifs ; do
nosbeacon =
config_get ifname " $vif " ifname
@ -70,12 +148,19 @@ enable_atheros() {
config_get ifname " $vif " ifname
ifname = $( wlanconfig " $ifname " create wlandev " $device " wlanmode " $mode " ${ nosbeacon : +nosbeacon } )
config_set " $vif " ifname " $ifname "
[ $? -ne 0 ] && {
echo " enable_atheros( $device ): Failed to set up vif $ifname " >& 2
echo " enable_atheros( $device ): Failed to set up $mode vif $ifname " >& 2
continue
}
config_set " $vif " ifname " $ifname "
config_get wds " $vif " wds
case " $wds " in
1| on| enabled) wds = 1; ;
*) wds = 0; ;
esac
iwpriv " $ifname " wds " $wds "
wpa =
case " $enc " in
WEP| wep)
@ -84,42 +169,45 @@ enable_atheros() {
iwconfig " $ifname " enc " [ $idx ] " " ${ key :- off } "
done
config_get key " $vif " key
iwconfig " $ifname " enc " $ key"
iwconfig " $ifname " enc " [ ${ :- 1 } ] "
; ;
esac
case " $mode " in
ap)
local hostapd_cfg =
case " $enc " in
*psk*| *PSK*)
# FIXME: wpa
; ;
*wpa*| *WPA*)
# FIXME: add wpa+radius here
; ;
esac
wds)
config_get addr " $vif " bssid
iwpriv " $ifname " wds_add " $addr "
; ;
sta )
# FIXME: implement wpa_supplicant calls here
*)
config_get ssid " $vif " ssid
; ;
esac
config_get ssid " $vif " ssid
append if_up " iwconfig $ifname essid $ssid channel $channel " " ; $N "
append if_up "sleep 1" " ; $N "
append if_up " ifconfig $ifname up " " ; $N "
esac
iwconfig " $ifname " channel " $channel "
ifconfig " $ifname " up
local net_cfg bridge
net_cfg = " $( find_net_config " $vif " ) "
[ -z " $net_cfg " ] || {
bridge = " $( bridge_interface " $net_cfg " ) "
append if_up " start_net ' $ifname ' ' $net_cfg ' " " ; $N "
config_set " $vif " bridge " $bridge "
start_net " $ifname " " $net_cfg "
}
# TODO: start hostapd
case " $mode " in
ap)
hostapd_setup_vif " $vif " madwifi || {
echo " enable_atheros( $device ): Failed to set up wpa for interface $ifname " >& 2
# make sure this wifi interface won't accidentally stay open without encryption
ifconfig " $ifname " down
wlanconfig " $ifname " destroy
continue
}
; ;
wds| sta)
iwconfig " $ifname " essid " $ssid "
# FIXME: implement wpa_supplicant calls here
; ;
esac
done
#killall -KILL $hostapd >&- 2>&-
eval " $if_up "
}
@ -136,6 +224,7 @@ config wifi-device $dev
config wifi-iface
option device $dev
# option network lan
option mode ap
option ssid OpenWrt
option hidden 0
Felix Fietkau
18 years ago