add minimal uci support

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9145 3c298f89-4303-0410-b956-a3cf2f4a3e73

2 files changed, 200 insertions, 0 deletions

diff --git a/package/mac80211/Makefile b/package/mac80211/Makefile
index 63d7fff475..416507f9ed 100644
--- a/package/mac80211/Makefile
+++ b/package/mac80211/Makefile
@@ -70,4 +70,9 @@ define Build/UninstallDev
 	rm -rf	$(1)/usr/include/mac80211
 endef
 
+define KernelPackage/mac80211/install
+	$(INSTALL_DIR) $(1)/lib/wifi
+	$(INSTALL_DATA) ./files/lib/wifi/mac80211.sh $(1)/lib/wifi
+endef
+
 $(eval $(call KernelPackage,mac80211))
diff --git a/package/mac80211/files/lib/wifi/mac80211.sh b/package/mac80211/files/lib/wifi/mac80211.sh
new file mode 100644
index 0000000000..39a7034abd
--- /dev/null
+++ b/package/mac80211/files/lib/wifi/mac80211.sh
@@ -0,0 +1,195 @@
+#!/bin/sh
+append DRIVERS "mac80211"
+
+scan_mac80211() {
+	local device="$1"
+	local adhoc sta ap
+	
+	config_get vifs "$device" vifs
+	for vif in $vifs; do
+	
+		config_get ifname "$vif" ifname
+		config_set "$vif" ifname "${ifname:-$device}"
+		
+		config_get mode "$vif" mode
+		case "$mode" in
+			adhoc|sta|ap)
+				append $mode "$vif"
+			;;
+			*) echo "$device($vif): Invalid mode, ignored."; continue;;
+		esac
+	done
+
+	config_set "$device" vifs "${ap:+$ap }${adhoc:+$adhoc }${ahdemo:+$ahdemo }${sta:+$sta }${wds:+$wds }"
+}
+
+
+disable_mac80211() (
+	local device="$1"
+
+	set_wifi_down "$device"
+	# kill all running hostapd and wpa_supplicant processes that
+	# are running on atheros vifs 
+	for pid in `pidof hostapd wpa_supplicant`; do
+		grep wlan /proc/$pid/cmdline >/dev/null && \
+			kill $pid
+	done
+	
+	include /lib/network
+	cd /proc/sys/net
+	for dev in *; do
+		grep "$device" "$dev/%parent" >/dev/null 2>/dev/null && {
+			ifconfig "$dev" down 
+			unbridge "$dev"
+		}
+	done
+	return 0
+)
+
+enable_mac80211() {
+	local device="$1"
+	config_get channel "$device" channel
+	config_get vifs "$device" vifs
+	
+	local first=1
+	for vif in $vifs; do
+		config_get ifname "$vif" ifname
+		config_get enc "$vif" encryption
+		config_get mode "$vif" mode
+		
+		config_get ifname "$vif" ifname
+		[ $? -ne 0 ] && {
+			echo "enable_mac80211($device): Failed to set up $mode vif $ifname" >&2
+			continue
+		}
+		config_set "$vif" ifname "$ifname"
+
+		[ "$first" = 1 ] && {
+			# only need to change freq band and channel on the first vif
+			iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null 
+			ifconfig "$ifname" up
+			sleep 1
+			iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null 
+		}
+	
+		wpa=
+		case "$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
+				key="${key:-1}"
+				case "$key" in
+					[1234]) iwconfig "$ifname" enc "[$key]";;
+					*) iwconfig "$ifname" enc "$key";;
+				esac
+			;;
+			PSK|psk|PSK2|psk2)
+				config_get key "$vif" key
+			;;
+		esac
+
+		case "$mode" in
+			adhoc)
+				config_get addr "$vif" bssid
+				[ -z "$addr" ] || { 
+					iwconfig "$ifname" ap "$addr"
+				}
+			;;
+		esac
+		config_get ssid "$vif" ssid
+
+		config_get txpwr "$vif" txpower
+		if [ -n "$txpwr" ]; then
+			iwconfig "$ifname" txpower "${txpwr%%.*}"
+		fi
+
+		config_get frag "$vif" frag
+		if [ -n "$frag" ]; then
+			iwconfig "$ifname" frag "${frag%%.*}"
+		fi
+
+		config_get rts "$vif" rts
+		if [ -n "$rts" ]; then
+			iwconfig "$ifname" rts "${rts%%.*}"
+		fi
+
+		ifconfig "$ifname" up
+		iwconfig "$ifname" channel "$channel" >/dev/null 2>/dev/null 
+
+		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" "$net_cfg"
+		}
+		iwconfig "$ifname" essid "$ssid"
+		set_wifi_up "$vif" "$ifname"
+		case "$mode" in
+			ap)
+				if eval "type hostapd_setup_vif" 2>/dev/null >/dev/null; then
+					hostapd_setup_vif "$vif" devicescape || {
+						echo "enable_atheros($device): Failed to set up wpa for interface $ifname" >&2
+						# make sure this wifi interface won't accidentally stay open without encryption
+						ifconfig "$ifname" down
+						continue
+					}
+				fi
+			;;
+			sta)
+				case "$enc" in 
+					PSK|psk|PSK2|psk2)
+						case "$enc" in
+							PSK|psk)
+								proto='proto=WPA';;
+							PSK2|psk2)
+								proto='proto=RSN';;
+						esac
+						cat > /var/run/wpa_supplicant-$ifname.conf <<EOF
+ctrl_interface=/var/run/wpa_supplicant
+network={
+	scan_ssid=1
+	ssid="$ssid"
+	key_mgmt=WPA-PSK
+	$proto
+	psk="$key"
+}
+EOF
+					;;
+					WPA|wpa|WPA2|wpa2)
+						#add wpa_supplicant calls here
+					;;
+				esac
+				[ -z "$proto" ] || wpa_supplicant ${bridge:+ -b $bridge} -B -D wext -i "$ifname" -c /var/run/wpa_supplicant-$ifname.conf
+			;;
+		esac
+		first=0
+	done
+}
+
+
+detect_mac80211() {
+	cd /sys/class/net
+	for dev in $(ls -d wlan* 2>&-); do
+		config_get type "$dev" type
+		[ "$type" = mac80211 ] && return
+		cat <<EOF
+config wifi-device  $dev
+	option type     mac80211
+	option channel  5
+
+	# REMOVE THIS LINE TO ENABLE WIFI:
+	option disabled 1
+
+config wifi-iface
+	option device	$dev
+	option network	lan
+	option mode	ap
+	option ssid	OpenWrt
+	option encryption none
+EOF
+	done
+}