Trigger WPS configuration update on string changes

Previously, only Device Name string was handled, but similar trigger
is needed on Manufacturer, Model Name, Model Number, and Serial Number
changes.

wpa_supplicant/config.c

@@ -2376,10 +2376,10 @@ static const struct global_parse_data global_fields[] = {
 #ifdef CONFIG_WPS
 	{ FUNC(uuid), CFG_CHANGED_UUID },
 	{ STR_RANGE(device_name, 0, 32), CFG_CHANGED_DEVICE_NAME },
-	{ STR_RANGE(manufacturer, 0, 64), 0 },
-	{ STR_RANGE(model_name, 0, 32), 0 },
-	{ STR_RANGE(model_number, 0, 32), 0 },
-	{ STR_RANGE(serial_number, 0, 32), 0 },
+	{ STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
+	{ STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
+	{ STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
+	{ STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
 	{ STR(device_type), CFG_CHANGED_DEVICE_TYPE },
 	{ FUNC(os_version), CFG_CHANGED_OS_VERSION },
 	{ STR(config_methods), CFG_CHANGED_CONFIG_METHODS },

wpa_supplicant/config.h

@@ -36,6 +36,7 @@
 #define CFG_CHANGED_COUNTRY BIT(5)
 #define CFG_CHANGED_SEC_DEVICE_TYPE BIT(6)
 #define CFG_CHANGED_P2P_SSID_POSTFIX BIT(7)
+#define CFG_CHANGED_WPS_STRING BIT(8)
 
 /**
  * struct wpa_config - wpa_supplicant configuration data

wpa_supplicant/wps_supplicant.c

@@ -1387,7 +1387,8 @@ void wpas_wps_update_config(struct wpa_supplicant *wpa_s)
 			os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
 	}
 
-	if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME) {
+	if (wpa_s->conf->changed_parameters &
+	    (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) {
 		/* Update pointers to make sure they refer current values */
 		wps->dev.device_name = wpa_s->conf->device_name;
 		wps->dev.manufacturer = wpa_s->conf->manufacturer;