/etc/config/wireless support for madwifi (work in progress)

SVN-Revision: 5630

package/madwifi/files/lib/wifi/madwifi.sh

@@ -0,0 +1,147 @@
+#!/bin/sh
+set -x
+append DRIVERS "atheros"
+
+scan_atheros() {
+	local device="$1"
+	local wds
+	local adhoc sta ap
+	
+	config_get vifs "$device" vifs
+	for vif in $vifs; do
+	
+		config_get ifname "$vif" ifname
+		config_set "$vif" ifname "${ifname:-ath}"
+		
+		config_get mode "$vif" mode
+		case "$mode" in
+			adhoc|sta|ap)
+				append $mode "$vif"
+			;;
+			wds)
+				config_get addr "$vif" bssid
+				${addr:+append wds "$addr"}
+			;;
+			*) echo "$device($vif): Invalid mode, ignored."; continue;;
+		esac
+	done
+
+	case "${adhoc:+1}:${sta:+}:${ap+1}" in
+		# valid mode combinations
+		1::);;
+		:1:1)config_set "$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 "${ap:+$ap }${adhoc:+$adhoc }${sta:+$sta }"
+	
+	[ -z "$adhoc" ] && config_set "$device" wds "$wdsifs"
+}
+
+disable_atheros() (
+	local device="$1"
+	
+	include /lib/network
+	cd /proc/sys/net
+	for dev in *; do
+		grep "$device" "$dev/%parent" >/dev/null 2>/dev/null && {
+			ifconfig "$dev" down 
+			unbridge "$dev"
+			wlanconfig $dev destroy
+		}
+	done
+)
+
+enable_atheros() {
+	config_get channel "$device" channel
+	config_get wds "$device" wds
+	config_get vifs "$device" vifs
+
+	for vif in $vifs; do
+		nosbeacon=
+		config_get ifname "$vif" ifname
+		config_get enc "$vif" encryption
+		config_get mode "$vif" mode
+		
+		[ "$mode" = sta ] && config_get nosbeacon "$device" nosbeacon
+		
+		config_get ifname "$vif" ifname
+		ifname=$(wlanconfig "$ifname" create wlandev "$device" wlanmode "$mode" ${nosbeacon:+nosbeacon})
+		config_set "$vif" ifname "$ifname"
+		
+		[ $? -ne 0 ] && {
+			echo "enable_atheros($device): Failed to set up vif $ifname" >&2
+			continue
+		}
+		wpa=
+		case "$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
+				iwconfig "$ifname" enc "$key"
+			;;
+		esac
+		case "$mode" in
+			ap)
+				local hostapd_cfg=
+				case "$enc" in
+					*psk*|*PSK*)
+					# FIXME: wpa
+					;;
+					*wpa*|*WPA*)
+					# FIXME: add wpa+radius here
+					;;
+				esac
+			;;
+			sta)
+				# FIXME: implement wpa_supplicant calls here
+			;;
+		esac	
+		
+		config_get ssid "$vif" ssid
+		append if_up "iwconfig $ifname essid $ssid channel $channel" ";$N"
+		append if_up "sleep 1" ";$N"
+		append if_up "ifconfig $ifname up" ";$N"
+		
+		local net_cfg bridge
+		net_cfg="$(find_net_config "$vif")"
+		[ -z "$net_cfg" ] || {
+			bridge="$(bridge_interface "$net_cfg")"
+			append if_up "start_net '$ifname' '$net_cfg'" ";$N"
+		}
+		# TODO: start hostapd
+	done
+	
+	#killall -KILL $hostapd >&- 2>&-
+	eval "$if_up"
+}
+
+
+detect_atheros() {
+	cd /proc/sys/dev
+	[ -d ath ] || return
+	for dev in wifi*; do
+		config_get type "$dev" type
+		[ "$type" = atheros ] && return
+		cat <<EOF
+config wifi-device  $dev
+	option type     atheros
+	option channel  5
+
+config wifi-iface
+	option device   $dev
+	option mode     ap
+	option ssid     OpenWrt
+	option hidden   0
+	option encryption none
+
+EOF
+	done
+}
+