gluon-private-wifi: add package

Add a package for handling upgrade-scripts speific for the WAN radio
operation.

This way, the config mode interface can be removed seperately from the
core functionality to perform tasks on system upgrade. This can be
useful when the setup-mode is removed entirely for space preservation.

package/gluon-private-wifi/Makefile

+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=gluon-private-wifi
+PKG_VERSION:=1
+
+include ../gluon.mk
+
+define Package/gluon-private-wifi
+  TITLE:=Provides a virtual access point for the nodes WAN network 
+  DEPENDS:=+gluon-core
+endef
+
+$(eval $(call BuildPackageGluon,gluon-private-wifi))

package/gluon-private-wifi/luasrc/lib/gluon/upgrade/325-gluon-private-wifi

+#!/usr/bin/lua
+
+local uci = require("simple-uci").cursor()
+local wireless = require 'gluon.wireless'
+
+wireless.foreach_radio(uci, function(radio)
+	local radio_name = radio['.name']
+	local suffix = radio_name:match('^radio(%d+)$')
+	local name   = "wan_" .. radio_name
+
+	if not uci:get('wireless', name, 'device') then
+		return
+	end
+
+	uci:set('wireless', name, 'ifname', suffix and 'wan' .. suffix)
+end)
+
+uci:save('wireless')

package/gluon-web-private-wifi/Makefile

@@ -7,7 +7,7 @@ PKG_RELEASE:=1
 include ../gluon.mk
 
 define Package/gluon-web-private-wifi
-  DEPENDS:=+gluon-web-admin
+  DEPENDS:=+gluon-web-admin +gluon-private-wifi
   TITLE:=UI for activating a private WLAN
 endef