openwrt/package/kernel/mac80211/files/lib/wifi/mac80211.sh
Christian Lamparter 5e35b4562f base-files, mac80211, broadcom-wl: use uci to populate wireless config
Previously, wifi detect simply dumped its generated wireless
configuration to STDOUT. A second step was needed to append
the configuration to /etc/config/wireless (or create it, if
it didn't exist).

With this patch, The wifi detection script will now use uci
to update the wireless configuration directly.

This patch also makes the initially created wifi-iface a
named section ('default_radio$X' for mac80211 and
'default_wl$X' for broadcom). With this change, uci will
not print the cfgHASH to STDOUT (which would now corrupt
the wireless configuration). It will also prevent adding
duplicated wifi interface configurations, if the wifi
configuration is run concurrently.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2016-11-03 11:08:01 +01:00

133 lines
3.1 KiB
Bash

#!/bin/sh
append DRIVERS "mac80211"
lookup_phy() {
[ -n "$phy" ] && {
[ -d /sys/class/ieee80211/$phy ] && return
}
local devpath
config_get devpath "$device" path
[ -n "$devpath" ] && {
for phy in $(ls /sys/class/ieee80211 2>/dev/null); do
case "$(readlink -f /sys/class/ieee80211/$phy/device)" in
*$devpath) return;;
esac
done
}
local macaddr="$(config_get "$device" macaddr | tr 'A-Z' 'a-z')"
[ -n "$macaddr" ] && {
for _phy in /sys/class/ieee80211/*; do
[ -e "$_phy" ] || continue
[ "$macaddr" = "$(cat ${_phy}/macaddress)" ] || continue
phy="${_phy##*/}"
return
done
}
phy=
return
}
find_mac80211_phy() {
local device="$1"
config_get phy "$device" phy
lookup_phy
[ -n "$phy" -a -d "/sys/class/ieee80211/$phy" ] || {
echo "PHY for wifi device $1 not found"
return 1
}
config_set "$device" phy "$phy"
config_get macaddr "$device" macaddr
[ -z "$macaddr" ] && {
config_set "$device" macaddr "$(cat /sys/class/ieee80211/${phy}/macaddress)"
}
return 0
}
check_mac80211_device() {
config_get phy "$1" phy
[ -z "$phy" ] && {
find_mac80211_phy "$1" >/dev/null || return 0
config_get phy "$1" phy
}
[ "$phy" = "$dev" ] && found=1
}
detect_mac80211() {
devidx=0
config_load wireless
while :; do
config_get type "radio$devidx" type
[ -n "$type" ] || break
devidx=$(($devidx + 1))
done
for _dev in /sys/class/ieee80211/*; do
[ -e "$_dev" ] || continue
dev="${_dev##*/}"
found=0
config_foreach check_mac80211_device wifi-device
[ "$found" -gt 0 ] && continue
mode_band="g"
channel="11"
htmode=""
ht_capab=""
iw phy "$dev" info | grep -q 'Capabilities:' && htmode=HT20
iw phy "$dev" info | grep -q '2412 MHz' || { mode_band="a"; channel="36"; }
vht_cap=$(iw phy "$dev" info | grep -c 'VHT Capabilities')
cap_5ghz=$(iw phy "$dev" info | grep -c "Band 2")
[ "$vht_cap" -gt 0 -a "$cap_5ghz" -gt 0 ] && {
mode_band="a";
channel="36"
htmode="VHT80"
}
[ -n $htmode ] && ht_capab="set wireless.radio${devidx}.htmode=$htmode"
if [ -x /usr/bin/readlink -a -h /sys/class/ieee80211/${dev} ]; then
path="$(readlink -f /sys/class/ieee80211/${dev}/device)"
else
path=""
fi
if [ -n "$path" ]; then
path="${path##/sys/devices/}"
case "$path" in
platform*/pci*) path="${path##platform/}";;
esac
dev_id="set wireless.radio${devidx}.path='$path'"
else
dev_id="set wireless.radio${devidx}.macaddr=$(cat /sys/class/ieee80211/${dev}/macaddress)"
fi
uci -q batch <<-EOF
set wireless.radio${devidx}=wifi-device
set wireless.radio${devidx}.type=mac80211
set wireless.radio${devidx}.channel=${channel}
set wireless.radio${devidx}.hwmode=11${mode_band}
${dev_id}
${ht_capab}
set wireless.radio${devidx}.disabled=1
set wireless.default_radio${devidx}=wifi-iface
set wireless.default_radio${devidx}.device=radio${devidx}
set wireless.default_radio${devidx}.network=lan
set wireless.default_radio${devidx}.mode=ap
set wireless.default_radio${devidx}.ssid=LEDE
set wireless.default_radio${devidx}.encryption=none
EOF
uci -q commit wireless
devidx=$(($devidx + 1))
done
}