Allow driver wrappers to indicate maximum remain-on-channel duration

src/drivers/driver.h

@@ -505,6 +505,11 @@ struct wpa_driver_capa {
 	unsigned int flags;
 
 	int max_scan_ssids;
+
+	/**
+	 * max_remain_on_chan - Maximum remain-on-channel duration in msec
+	 */
+	unsigned int max_remain_on_chan;
 };
 
 

src/drivers/driver_nl80211.c

@@ -1157,6 +1157,7 @@ static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
 	}
 
 	drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
+	drv->capa.max_remain_on_chan = 5000;
 
 	return 0;
 }

src/drivers/driver_test.c

@@ -2386,6 +2386,7 @@ static int wpa_driver_test_get_capa(void *priv, struct wpa_driver_capa *capa)
 		capa->flags |= WPA_DRIVER_FLAGS_USER_SPACE_MLME;
 	capa->flags |= WPA_DRIVER_FLAGS_AP;
 	capa->max_scan_ssids = 2;
+	capa->max_remain_on_chan = 60000;
 
 	return 0;
 }