openwrt/package/base-files/files/sbin/wifi

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#!/bin/sh
# Copyright (C) 2006 OpenWrt.org
. /etc/functions.sh
find_net_config() {(
local vif="$1"
local cfg
local ifname
config_get cfg "$vif" network
[ -z "$cfg" ] && {
include /lib/network
scan_interfaces
config_get ifname "$vif" ifname
cfg="$(find_config "$ifname")"
}
[ -z "$cfg" ] && return 0
echo "$cfg"
)}
bridge_interface() {(
local cfg="$1"
[ -z "$cfg" ] && return 0
include /lib/network
scan_interfaces
config_get iftype "$cfg" type
[ "$iftype" = bridge ] && config_get "$cfg" ifname
)}
wifi_updown() {
[ enable = "$1" ] && wifi_updown disable "$2"
for device in ${2:-$DEVICES}; do (
config_get disabled "$device" disabled
[ 1 == "$disabled" ] && {
echo "'$device' is disabled"
set disable
}
config_get iftype "$device" type
if eval "type ${1}_$iftype" 2>/dev/null >/dev/null; then
eval "scan_$iftype '$device'"
eval "${1}_$iftype '$device'" || echo "$device($iftype): ${1} failed"
else
echo "$device($iftype): Interface type not supported"
fi
); done
}
wifi_detect() {
for driver in ${2:-$DRIVERS}; do (
if eval "type detect_$driver" 2>/dev/null >/dev/null; then
eval "detect_$driver" || echo "$driver: Detect failed" >&2
else
echo "$driver: Hardware detection not supported" >&2
fi
); done
}
start_net() {(
local iface="$1"
local config="$2"
include /lib/network
scan_interfaces
setup_interface "$1" "$2"
)}
set_wifi_up() {
local cfg="$1"
local ifname="$2"
uci set "/var/state/wireless.${cfg}.up=1"
uci set "/var/state/wireless.${cfg}.ifname=$ifname"
}
set_wifi_down() {
local cfg="$1"
local vifs vif vifstr
[ -f /var/state/wireless ] || return
config_get vifs "$cfg" vifs
for vif in $vifs; do
append vifstr "$vif" "|"
done
FILE="/var/state/wireless.$$"
grep -vE "^config_set '($vifstr)' " /var/state/wireless > "$FILE"
mv "$FILE" /var/state/wireless
}
scan_wifi() {
local cfgfile="$1"
config_cb() {
config_get TYPE "$CONFIG_SECTION" TYPE
case "$TYPE" in
wifi-device)
append DEVICES "$CONFIG_SECTION"
;;
wifi-iface)
config_get device "$CONFIG_SECTION" device
config_get vifs "$device" vifs
append vifs "$CONFIG_SECTION"
config_set "$device" vifs "$vifs"
;;
esac
}
config_load "${cfgfile:-wireless}"
}
DEVICES=
DRIVERS=
include /lib/wifi
scan_wifi
case "$1" in
down) wifi_updown "disable" "$2";;
detect) wifi_detect "$2";;
*) wifi_updown "enable" "$2";;
esac