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openwrt-xburst/package/madwifi/files/lib/wifi/madwifi.sh
jow ab435ac770 [package] madwifi: change wireless ifname numbering schema
Instead of simply counting up until we hit a free iface, group ifnames by wiphy so that the first wlanX on a phy gets the phy number
and following ifaces an index-suffix, e.g. ath0 for network 1 on phy 1 and ath0-1 for network 2 on phy 1.
This fixes state var confusion when operating multiple radios and allows to reliably take down and restart one radio only, even if
the number of networks changes in between. This should, along with other changes in LuCI, fix #10335.


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@28785 3c298f89-4303-0410-b956-a3cf2f4a3e73
2011-11-06 19:57:07 +00:00

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#!/bin/sh
append DRIVERS "atheros"
find_atheros_phy() {
local device="$1"
local macaddr="$(config_get "$device" macaddr | tr 'A-Z' 'a-z')"
config_get phy "$device" phy
[ -z "$phy" -a -n "$macaddr" ] && {
cd /proc/sys/dev
for phy in $(ls -d wifi* 2>&-); do
[ "$macaddr" = "$(cat /sys/class/net/${phy}/address)" ] || continue
config_set "$device" phy "$phy"
break
done
config_get phy "$device" phy
}
[ -n "$phy" -a -d "/proc/sys/dev/$phy" ] || {
echo "phy for wifi device $1 not found"
return 1
}
[ -z "$macaddr" ] && {
config_set "$device" macaddr "$(cat /sys/class/net/${phy}/address)"
}
return 0
}
scan_atheros() {
local device="$1"
local wds
local adhoc ahdemo sta ap monitor disabled
[ ${device%[0-9]} = "wifi" ] && config_set "$device" phy "$device"
local ifidx=0
config_get vifs "$device" vifs
for vif in $vifs; do
config_get_bool disabled "$vif" disabled 0
[ $disabled = 0 ] || continue
local vifname
[ $ifidx -gt 0 ] && vifname="ath${device#radio}-$ifidx" || vifname="ath${device#radio}"
config_get ifname "$vif" ifname
config_set "$vif" ifname "${ifname:-$vifname}"
config_get mode "$vif" mode
case "$mode" in
adhoc|ahdemo|sta|ap|monitor)
append $mode "$vif"
;;
wds)
config_get ssid "$vif" ssid
[ -z "$ssid" ] && continue
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
ifidx=$(($ifidx + 1))
done
case "${adhoc:+1}:${sta:+1}:${ap:+1}" in
# valid mode combinations
1::) wds="";;
1::1);;
:1:1)config_set "$device" nosbeacon 1;; # AP+STA, can't use beacon timers for STA
:1:);;
::1);;
::);;
*) echo "$device: Invalid mode combination in config"; return 1;;
esac
config_set "$device" vifs "${sta:+$sta }${ap:+$ap }${adhoc:+$adhoc }${ahdemo:+$ahdemo }${wds:+$wds }${monitor:+$monitor}"
}
disable_atheros() (
local device="$1"
find_atheros_phy "$device" || return 0
config_get phy "$device" phy
set_wifi_down "$device"
include /lib/network
cd /proc/sys/net
for dev in *; do
grep "$phy" "$dev/%parent" >/dev/null 2>/dev/null && {
[ -f "/var/run/wifi-${dev}.pid" ] &&
kill "$(cat "/var/run/wifi-${dev}.pid")"
ifconfig "$dev" down
unbridge "$dev"
wlanconfig "$dev" destroy
}
done
return 0
)
enable_atheros() {
local device="$1"
find_atheros_phy "$device" || return 0
config_get phy "$device" phy
config_get regdomain "$device" regdomain
[ -n "$regdomain" ] && echo "$regdomain" > /proc/sys/dev/$phy/regdomain
config_get country "$device" country
case "$country" in
[A-Za-z]*) country=`grep -i "$country" /lib/wifi/madwifi_countrycodes.txt |cut -d " " -f 2`;;
[0-9]*) ;;
*) country="" ;;
esac
[ -n "$country" ] && echo "$country" > /proc/sys/dev/$phy/countrycode
config_get_bool outdoor "$device" outdoor "0"
echo "$outdoor" > /proc/sys/dev/$phy/outdoor
config_get channel "$device" channel
config_get vifs "$device" vifs
config_get txpower "$device" txpower
[ auto = "$channel" ] && channel=0
config_get_bool antdiv "$device" diversity
config_get antrx "$device" rxantenna
config_get anttx "$device" txantenna
config_get_bool softled "$device" softled
config_get antenna "$device" antenna
devname="$(cat /proc/sys/dev/$phy/dev_name)"
local antgpio=
local invert=
case "$devname" in
NanoStation2) antgpio=7; invert=1;;
NanoStation5) antgpio=1; invert=1;;
"NanoStation Loco2") antgpio=2;;
"NanoStation Loco5")
case "$antenna" in
horizontal) antdiv=0; anttx=1; antrx=1;;
vertical) antdiv=0; anttx=2; antrx=2;;
*) antdiv=1; anttx=0; antrx=0;;
esac
;;
esac
if [ -n "$invert" ]; then
_set="clear"
_clear="set"
else
_set="set"
_clear="clear"
fi
if [ -n "$antgpio" ]; then
softled=0
case "$devname" in
"NanoStation Loco2")
antdiv=0
antrx=1
anttx=1
case "$antenna" in
horizontal) gpioval=0;;
*) gpioval=1;;
esac
;;
*)
case "$antenna" in
external) antdiv=0; antrx=1; anttx=1; gpioval=1;;
horizontal) antdiv=0; antrx=1; anttx=1; gpioval=0;;
vertical) antdiv=0; antrx=2; anttx=2; gpioval=0;;
auto) antdiv=1; antrx=0; anttx=0; gpioval=0;;
esac
;;
esac
[ -x "$(which gpioctl 2>/dev/null)" ] || antenna=
gpioctl "dirout" "$antgpio" >/dev/null 2>&1
case "$gpioval" in
0)
gpioctl "$_clear" "$antgpio" >/dev/null 2>&1
;;
1)
gpioctl "$_set" "$antgpio" >/dev/null 2>&1
;;
esac
fi
[ -n "$antdiv" ] && sysctl -w dev."$phy".diversity="$antdiv" >&-
[ -n "$antrx" ] && sysctl -w dev."$phy".rxantenna="$antrx" >&-
[ -n "$anttx" ] && sysctl -w dev."$phy".txantenna="$anttx" >&-
[ -n "$softled" ] && sysctl -w dev."$phy".softled="$softled" >&-
config_get distance "$device" distance
[ -n "$distance" ] && sysctl -w dev."$phy".distance="$distance" >&-
for vif in $vifs; do
local start_hostapd= vif_txpower= nosbeacon=
config_get ifname "$vif" ifname
config_get enc "$vif" encryption
config_get eap_type "$vif" eap_type
config_get mode "$vif" mode
case "$mode" in
sta) config_get_bool nosbeacon "$device" nosbeacon;;
adhoc) config_get_bool nosbeacon "$vif" sw_merge 1;;
esac
[ "$nosbeacon" = 1 ] || nosbeacon=""
ifname=$(wlanconfig "$ifname" create nounit wlandev "$phy" wlanmode "$mode" ${nosbeacon:+nosbeacon})
[ $? -ne 0 ] && {
echo "enable_atheros($device): Failed to set up $mode vif $ifname" >&2
continue
}
config_set "$vif" ifname "$ifname"
config_get hwmode "$device" hwmode
[ -z "$hwmode" ] && config_get hwmode "$device" mode
pureg=0
case "$hwmode" in
*b) hwmode=11b;;
*bg) hwmode=11g;;
*g) hwmode=11g; pureg=1;;
*gdt) hwmode=11gdt;;
*a) hwmode=11a;;
*adt) hwmode=11adt;;
*ast) hwmode=11ast;;
*fh) hwmode=fh;;
*) hwmode=auto;;
esac
iwpriv "$ifname" mode "$hwmode"
iwpriv "$ifname" pureg "$pureg"
iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null
config_get_bool hidden "$vif" hidden 0
iwpriv "$ifname" hide_ssid "$hidden"
config_get ff "$vif" ff
if [ -n "$ff" ]; then
iwpriv "$ifname" ff "$ff"
fi
config_get wds "$vif" wds
case "$wds" in
1|on|enabled) wds=1;;
*) wds=0;;
esac
iwpriv "$ifname" wds "$wds" >/dev/null 2>&1
[ "$mode" = ap -a "$wds" = 1 ] && {
config_get_bool wdssep "$vif" wdssep 1
[ -n "$wdssep" ] && iwpriv "$ifname" wdssep "$wdssep"
}
case "$enc" in
wep*)
case "$enc" in
*shared*) iwpriv "$ifname" authmode 2;;
*) iwpriv "$ifname" authmode 1;;
esac
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*|wpa*)
start_hostapd=1
config_get key "$vif" key
;;
esac
case "$mode" in
sta|adhoc|ahdemo)
config_get addr "$vif" bssid
[ -z "$addr" ] || {
iwconfig "$ifname" ap "$addr"
}
;;
esac
config_get_bool uapsd "$vif" uapsd 0
iwpriv "$ifname" uapsd "$uapsd"
config_get_bool bgscan "$vif" bgscan
[ -n "$bgscan" ] && iwpriv "$ifname" bgscan "$bgscan"
config_get rate "$vif" rate
[ -n "$rate" ] && iwconfig "$ifname" rate "${rate%%.*}"
config_get mcast_rate "$vif" mcast_rate
[ -n "$mcast_rate" ] && iwpriv "$ifname" mcast_rate "${mcast_rate%%.*}"
config_get frag "$vif" frag
[ -n "$frag" ] && iwconfig "$ifname" frag "${frag%%.*}"
config_get rts "$vif" rts
[ -n "$rts" ] && iwconfig "$ifname" rts "${rts%%.*}"
config_get_bool comp "$vif" compression 0
iwpriv "$ifname" compression "$comp" >/dev/null 2>&1
config_get minrate "$vif" minrate
[ -n "$minrate" ] && iwpriv "$ifname" minrate "$minrate"
config_get maxrate "$vif" maxrate
[ -n "$maxrate" ] && iwpriv "$ifname" maxrate "$maxrate"
config_get_bool burst "$vif" bursting
[ -n "$burst" ] && iwpriv "$ifname" burst "$burst"
config_get_bool wmm "$vif" wmm
[ -n "$wmm" ] && iwpriv "$ifname" wmm "$wmm"
config_get_bool xr "$vif" xr
[ -n "$xr" ] && iwpriv "$ifname" xr "$xr"
config_get_bool ar "$vif" ar
[ -n "$ar" ] && iwpriv "$ifname" ar "$ar"
config_get_bool beacon_power "$vif" beacon_power
[ -n "$beacon_power" ] && iwpriv "$ifname" beacon_pwr "$beacon_power"
config_get_bool doth "$vif" doth 0
[ -n "$doth" ] && iwpriv "$ifname" doth "$doth"
config_get_bool probereq "$vif" probereq
[ -n "$probereq" ] && iwpriv "$ifname" probereq "$probereq"
config_get maclist "$vif" maclist
[ -n "$maclist" ] && {
# flush MAC list
iwpriv "$ifname" maccmd 3
for mac in $maclist; do
iwpriv "$ifname" addmac "$mac"
done
}
config_get macpolicy "$vif" macpolicy
case "$macpolicy" in
allow)
iwpriv "$ifname" maccmd 1
;;
deny)
iwpriv "$ifname" maccmd 2
;;
*)
# default deny policy if mac list exists
[ -n "$maclist" ] && iwpriv "$ifname" maccmd 2
;;
esac
ifconfig "$ifname" up
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" "$net_cfg"
}
config_get ssid "$vif" ssid
[ -n "$ssid" ] && {
iwconfig "$ifname" essid on
iwconfig "$ifname" essid ${ssid:+-- }"$ssid"
}
set_wifi_up "$vif" "$ifname"
# TXPower settings only work if device is up already
# while atheros hardware theoretically is capable of per-vif (even per-packet) txpower
# adjustment it does not work with the current atheros hal/madwifi driver
config_get vif_txpower "$vif" txpower
# use vif_txpower (from wifi-iface) instead of txpower (from wifi-device) if
# the latter doesn't exist
txpower="${txpower:-$vif_txpower}"
[ -z "$txpower" ] || iwconfig "$ifname" txpower "${txpower%%.*}"
case "$mode" in
ap)
config_get_bool isolate "$vif" isolate 0
iwpriv "$ifname" ap_bridge "$((isolate^1))"
if [ -n "$start_hostapd" ] && eval "type hostapd_setup_vif" 2>/dev/null >/dev/null; then
hostapd_setup_vif "$vif" madwifi || {
echo "enable_atheros($device): Failed to set up hostapd for interface $ifname" >&2
# make sure this wifi interface won't accidentally stay open without encryption
ifconfig "$ifname" down
wlanconfig "$ifname" destroy
continue
}
fi
;;
wds|sta)
if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
wpa_supplicant_setup_vif "$vif" madwifi || {
echo "enable_atheros($device): Failed to set up wpa_supplicant for interface $ifname" >&2
ifconfig "$ifname" down
wlanconfig "$ifname" destroy
continue
}
fi
;;
esac
done
}
check_atheros_device() {
[ ${1%[0-9]} = "wifi" ] && config_set "$1" phy "$1"
config_get phy "$1" phy
[ -z "$phy" ] && {
find_atheros_phy "$1" >/dev/null || return 0
config_get phy "$1" phy
}
[ "$phy" = "$dev" ] && found=1
}
detect_atheros() {
devidx=0
config_load wireless
while :; do
config_get type "radio$devidx" type
[ -n "$type" ] || break
devidx=$(($devidx + 1))
done
cd /proc/sys/dev
[ -d ath ] || return
for dev in $(ls -d wifi* 2>&-); do
found=0
config_foreach check_atheros_device wifi-device
[ "$found" -gt 0 ] && continue
devname="$(cat /proc/sys/dev/$dev/dev_name)"
case "$devname" in
"NanoStation Loco2")
EXTRA_DEV="
# Ubiquiti NanoStation Loco2 features
option antenna vertical # (horizontal|vertical)
"
;;
"NanoStation Loco5")
EXTRA_DEV="
# Ubiquiti NanoStation Loco5 features
option antenna auto # (auto|horizontal|vertical)
"
;;
NanoStation*)
EXTRA_DEV="
# Ubiquiti NanoStation features
option antenna auto # (auto|horizontal|vertical|external)
"
;;
esac
cat <<EOF
config wifi-device radio$devidx
option type atheros
option channel auto
option macaddr $(cat /sys/class/net/${dev}/address)
$EXTRA_DEV
# REMOVE THIS LINE TO ENABLE WIFI:
option disabled 1
config wifi-iface
option device radio$devidx
option network lan
option mode ap
option ssid OpenWrt
option encryption none
EOF
devidx=$(($devidx + 1))
done
}