hostapd: add preliminary wps script support (push-button only, does not handle multi-bss yet)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22100 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/hostapd/Makefile

@@ -294,8 +294,9 @@ Package/hostapd-mini/install = $(Package/hostapd/install)
 
 ifneq ($(LOCAL_TYPE),supplicant)
   define Package/hostapd-utils/install
-	$(INSTALL_DIR) $(1)/usr/sbin
+	$(INSTALL_DIR) $(1)/usr/sbin $(1)/etc/hotplug.d/button
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/hostapd/hostapd_cli $(1)/usr/sbin/
+	$(INSTALL_DATA) ./files/wps-hotplug.sh $(1)/etc/hotplug.d/button/50-wps
   endef
 endif
 

package/hostapd/files/hostapd.sh

@@ -1,7 +1,7 @@
 hostapd_set_bss_options() {
 	local var="$1"
 	local vif="$2"
-	local enc wpa_group_rekey
+	local enc wpa_group_rekey wps_possible
 
 	config_get enc "$vif" encryption
 	config_get wpa_group_rekey "$vif" wpa_group_rekey
@@ -60,6 +60,7 @@ hostapd_set_bss_options() {
 			else
 				append "$var" "wpa_passphrase=$psk" "$N"
 			fi
+			wps_possible=1
 		;;
 		*wpa*)
 			# required fields? formats?
@@ -116,6 +117,14 @@ hostapd_set_bss_options() {
 	config_get bridge "$vif" bridge
 	config_get ieee80211d "$vif" ieee80211d
 
+	config_get_bool wps_pbc "$vif" wps_pushbutton 0
+	[ -n "$wps_possible" -a "$wps_pbc" -gt 0 ] && {
+		append "$var" "eap_server=1" "$N"
+		append "$var" "wps_state=2" "$N"
+		append "$var" "ap_setup_locked=1" "$N"
+		append "$var" "config_methods=push_button" "$N"
+	}
+
 	append "$var" "ssid=$ssid" "$N"
 	[ -n "$bridge" ] && append "$var" "bridge=$bridge" "$N"
 	[ -n "$ieee80211d" ] && append "$var" "ieee80211d=$ieee80211d" "$N"

package/hostapd/files/wps-hotplug.sh

@@ -0,0 +1,6 @@
+if [ "$ACTION" = "pressed" -a "$BUTTON" = "wps" ]; then
+	for dir in /var/run/hostapd-*; do
+		[ -d "$dir" ] || continue
+		hostapd_cli -p "$dir" wps_pbc
+	done
+fi