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|
#!/bin/sh
# Copyright (C) 2006 OpenWrt.org
. /etc/functions.sh
usage() {
cat <<EOF
Usage: $0 [down|detect]
enables (default), disables or detects a wifi configuration.
EOF
exit 1
}
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
)}
prepare_key_wep() {
local key="$1"
local hex=1
echo -n "$key" | grep -qE "[^a-fA-F0-9]" && hex=0
[ "${#key}" -eq 10 -a $hex -eq 1 ] || \
[ "${#key}" -eq 26 -a $hex -eq 1 ] || {
[ "${key:0:2}" = "s:" ] && key="${key#s:}"
key="$(echo -n "$key" | hexdump -ve '1/1 "%02x" ""')"
}
echo "$key"
}
wifi_fixup_hwmode() {
local device="$1"
local default="$2"
local hwmode hwmode_11n
config_get channel "$device" channel
config_get hwmode "$device" hwmode
case "$hwmode" in
11bg) hwmode=bg;;
11a) hwmode=a;;
11b) hwmode=b;;
11g) hwmode=g;;
11n*)
hwmode_11n="${hwmode##11n}"
case "$hwmode_11n" in
a|g) ;;
default) hwmode_11n="$default"
esac
config_set "$device" hwmode_11n "$hwmode_11n"
;;
*)
hwmode=
if [ "${channel:-0}" -gt 0 ]; then
if [ "${channel:-0}" -gt 14 ]; then
hwmode=a
else
hwmode=g
fi
else
hwmode="$default"
fi
;;
esac
config_set "$device" hwmode "$hwmode"
}
wifi_updown() {
[ enable = "$1" ] && {
wifi_updown disable "$2"
scan_wifi
}
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"
local vifmac="$3"
[ -f "/var/run/$iface.pid" ] && kill "$(cat /var/run/${iface}.pid)" 2>/dev/null
include /lib/network
scan_interfaces
setup_interface "$iface" "$config" "" "$vifmac"
)}
set_wifi_up() {
local cfg="$1"
local ifname="$2"
uci_set_state wireless "$cfg" up 1
uci_set_state wireless "$cfg" ifname "$ifname"
}
set_wifi_down() {
local cfg="$1"
local vifs vif vifstr
[ -f "/var/run/wifi-${cfg}.pid" ] &&
kill "$(cat "/var/run/wifi-${cfg}.pid")" 2>/dev/null
uci_revert_state wireless "$cfg"
config_get vifs "$cfg" vifs
for vif in $vifs; do
uci_revert_state wireless "$vif"
done
}
scan_wifi() {
local cfgfile="$1"
DEVICES=
config_cb() {
local type="$1"
local section="$2"
# section start
case "$type" in
wifi-device)
append DEVICES "$section"
config_set "$section" vifs ""
config_set "$section" ht_capab ""
;;
esac
# section end
config_get TYPE "$CONFIG_SECTION" TYPE
case "$TYPE" in
wifi-iface)
config_get device "$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";;
--help|help) usage;;
*) wifi_updown "enable" "$2";;
esac
|
