luci-base: network.js: Show clients also from wifi VLANs.

Iterate through VLANs to get the clients connected on configured wifi
VLANs (as configured by `wifi-vlan` sections in `wireless` configuration).

This is a minimum support for VLANs on wireless network. The VLAN name is
nowhere displayed, but at least clients using VLANs are visible.

Signed-off-by: Oldřich Jedlička <oldium.pro@gmail.com>

modules/luci-base/htdocs/luci-static/resources/network.js

@@ -3570,6 +3570,24 @@ WifiNetwork = baseclass.extend(/** @lends LuCI.network.WifiNetwork.prototype */
 		return ifname;
 	},
 
+	/**
+	 * Get the Linux VLAN network device names.
+	 *
+	 * @returns {string[]}
+	 * Returns the current Linux VLAN network device name as resolved
+	 * from `ubus` runtime information or empty array if this network
+	 * has no associated VLAN network devices.
+	 */
+	getVlanIfnames: function() {
+		var vlans = L.toArray(this.ubus('net', 'vlans')),
+		    ifnames = [];
+
+		for (var i = 0; i < vlans.length; i++)
+			ifnames.push(vlans[i]['ifname']);
+
+		return ifnames;
+	},
+
 	/**
 	 * Get the name of the corresponding wifi radio device.
 	 *
@@ -3880,7 +3898,15 @@ WifiNetwork = baseclass.extend(/** @lends LuCI.network.WifiNetwork.prototype */
 	 * with this network.
 	 */
 	getAssocList: function() {
-		return callIwinfoAssoclist(this.getIfname());
+		var tasks = [];
+		var ifnames = [ this.getIfname() ].concat(this.getVlanIfnames());
+
+		for (var i = 0; i < ifnames.length; i++)
+			tasks.push(callIwinfoAssoclist(ifnames[i]));
+
+		return Promise.all(tasks).then(function(values) {
+			return Array.prototype.concat.apply([], values);
+		});
 	},
 
 	/**