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#!/bin/sh
append DRIVERS "mac80211"
scan_mac80211() {
local device="$1"
local adhoc sta ap
config_get vifs "$device" vifs
for vif in $vifs; do
config_get ifname "$vif" ifname
config_set "$vif" ifname "${ifname:-$device}"
config_get mode "$vif" mode
case "$mode" in
adhoc|sta|ap|monitor)
append $mode "$vif"
;;
*) echo "$device($vif): Invalid mode, ignored."; continue;;
esac
done
config_set "$device" vifs "${ap:+$ap }${adhoc:+$adhoc }${ahdemo:+$ahdemo }${sta:+$sta }${wds:+$wds }${monitor:+$monitor}"
}
disable_mac80211() (
local device="$1"
set_wifi_down "$device"
# kill all running hostapd and wpa_supplicant processes that
# are running on atheros/mac80211 vifs
for pid in `pidof hostapd wpa_supplicant`; do
grep wlan /proc/$pid/cmdline >/dev/null && \
kill $pid
done
include /lib/network
cd /proc/sys/net
for dev in *; do
grep "$device" "$dev/%parent" >/dev/null 2>/dev/null && {
ifconfig "$dev" down
unbridge "$dev"
}
done
return 0
)
enable_mac80211() {
local device="$1"
config_get channel "$device" channel
config_get vifs "$device" vifs
config_get txpower "$device" txpower
local first=1
for vif in $vifs; do
ifconfig "$ifname" down 2>/dev/null
config_get ifname "$vif" ifname
config_get enc "$vif" encryption
config_get eap_type "$vif" eap_type
config_get mode "$vif" mode
config_get ifname "$vif" ifname
[ $? -ne 0 ] && {
echo "enable_mac80211($device): Failed to set up $mode vif $ifname" >&2
continue
}
config_set "$vif" ifname "$ifname"
[ "$first" = 1 ] && {
# only need to change freq band and channel on the first vif
iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
if [ "$mode" = adhoc ]; then
iwlist "$ifname" scan >/dev/null 2>/dev/null
sleep 1
iwconfig "$ifname" mode ad-hoc >/dev/null 2>/dev/null
fi
sleep 1
iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
}
if [ "$mode" = sta ]; then
iwconfig "$ifname" mode managed >/dev/null 2>/dev/null
else
iwconfig "$ifname" mode $mode >/dev/null 2>/dev/null
fi
wpa=
case "$enc" in
WEP|wep)
for idx in 1 2 3 4; do
config_get key "$vif" "key${idx}"
iwconfig "$ifname" enc "[$idx]" "${key:-off}"
done
config_get key "$vif" key
key="${key:-1}"
case "$key" in
[1234]) iwconfig "$ifname" enc "[$key]";;
*) iwconfig "$ifname" enc "$key";;
esac
;;
PSK|psk|PSK2|psk2)
config_get key "$vif" key
;;
esac
case "$mode" in
adhoc)
config_get addr "$vif" bssid
[ -z "$addr" ] || {
iwconfig "$ifname" ap "$addr"
}
;;
esac
config_get ssid "$vif" ssid
config_get vif_txpower "$vif" txpower
# use vif_txpower (from wifi-iface) to override txpower (from
# wifi-device) if the latter doesn't exist
txpower="${txpower:-$vif_txpower}"
[ -z "$txpower" ] || iwconfig "$ifname" txpower "${txpower%%.*}"
config_get frag "$vif" frag
if [ -n "$frag" ]; then
iwconfig "$ifname" frag "${frag%%.*}"
fi
config_get rts "$vif" rts
if [ -n "$rts" ]; then
iwconfig "$ifname" rts "${rts%%.*}"
fi
ifconfig "$ifname" up
iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
local net_cfg bridge
net_cfg="$(find_net_config "$vif")"
[ -z "$net_cfg" ] || {
bridge="$(bridge_interface "$net_cfg")"
config_set "$vif" bridge "$bridge"
start_net "$ifname" "$net_cfg"
}
iwconfig "$ifname" essid "$ssid"
set_wifi_up "$vif" "$ifname"
case "$mode" in
ap)
if eval "type hostapd_setup_vif" 2>/dev/null >/dev/null; then
hostapd_setup_vif "$vif" nl80211 || {
echo "enable_mac80211($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
continue
}
fi
;;
sta)
if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
wpa_supplicant_setup_vif "$vif" wext || {
echo "enable_mac80211($device): Failed to set up wpa_supplicant for interface $ifname" >&2
# make sure this wifi interface won't accidentally stay open without encryption
ifconfig "$ifname" down
continue
}
fi
;;
esac
first=0
done
}
detect_mac80211() {
cd /sys/class/net
for dev in $(ls -d wlan* 2>&-); do
config_get type "$dev" type
[ "$type" = mac80211 ] && return
cat <<EOF
config wifi-device $dev
option type mac80211
option channel 5
# REMOVE THIS LINE TO ENABLE WIFI:
option disabled 1
config wifi-iface
option device $dev
option network lan
option mode ap
option ssid OpenWrt
option encryption none
EOF
done
}
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