wpa_supplicant: add MLO client support

Can also be used for a client mode interface that is able to connect on
multiple bands individually, while handling hostapd state for the correct
band.

Signed-off-by: Felix Fietkau <[email protected]>

Author: nbd168

package/network/config/wifi-scripts/files-ucode/usr/share/ucode/wifi/supplicant.uc

@@ -248,6 +248,8 @@ export function generate(config_list, data, interface) {
 		iface: interface.config.ifname,
 		config: file_name,
 		'4addr': !!interface.config.wds,
+		mlo: !!interface.config.mlo,
+		freq_list: data.config.scan_list,
 		powersave: false
 	};
 

package/network/config/wifi-scripts/files/lib/netifd/wireless-device.uc

@@ -17,6 +17,16 @@ let wdev_handler = {};
 let wdev_script_task, wdev_script_timeout;
 let handler_timer;
 
+function supplicant_start_mlo()
+{
+	ubus.call({
+		object: "wpa_supplicant",
+		method: "mld_start",
+		return: "ignore",
+		data: { },
+	});
+}
+
 function delete_wdev(name)
 {
 	delete netifd.wireless.devices[name];
@@ -216,6 +226,9 @@ function run_next_handler()
 {
 	while (!wdev_cur && length(wdev_handler) > 0)
 		__run_next_handler();
+
+	if (!wdev_cur && !length(wdev_handler))
+		supplicant_start_mlo();
 }
 
 function run_handler(wdev, op, cb)

package/network/config/wifi-scripts/files/lib/netifd/wireless.uc

@@ -17,12 +17,12 @@ let wireless = netifd.wireless = {
 	path: realpath(netifd.main_path + "/wireless"),
 };
 
-function hostapd_update_mlo()
+function wpad_update_mlo(service, mode)
 {
 	let config = {};
 
 	for (let ifname, data in wireless.mlo) {
-		if (data.mode != "ap")
+		if (data.mode != mode)
 			continue;
 
 		data.phy = find_phy(data.radio_config[0], true);
@@ -33,17 +33,28 @@ function hostapd_update_mlo()
 	}
 
 	ubus.call({
-		object: "hostapd",
+		object: service,
 		method: "mld_set",
 		return: "ignore",
 		data: { config },
 	});
 }
 
+function hostapd_update_mlo()
+{
+	wpad_update_mlo("hostapd", "ap");
+}
+
+function supplicant_update_mlo()
+{
+	wpad_update_mlo("wpa_supplicant", "sta");
+}
+
 function update_config(new_devices, mlo_vifs)
 {
 	wireless.mlo = mlo_vifs;
 	hostapd_update_mlo();
+	supplicant_update_mlo();
 
 	for (let name, dev in wireless.devices)
 		if (!new_devices[name])
@@ -516,6 +527,8 @@ wireless.obj = ubus.publish("network.wireless", ubus_obj);
 wireless.listener = ubus.listener("ubus.object.add", (event, msg) => {
 	if (msg.path == "hostapd")
 		hostapd_update_mlo();
+	else if (msg.path == "wpa_supplicant")
+		supplicant_update_mlo();
 });
 
 return {