Add deinit_ap driver op to help wpa_supplicant AP mode use

src/drivers/driver.h

@@ -1708,6 +1708,17 @@ struct wpa_driver_ops {
 	 * 802.11b-only devices.
 	 */
 	int (*disable_11b_rates)(void *priv, int disabled);
+
+	/**
+	 * deinit_ap - Deinitialize AP mode
+	 * @priv: Private driver interface data
+	 * Returns: 0 on success, -1 on failure (or if not supported)
+	 *
+	 * This optional function can be used to disable AP mode related
+	 * configuration and change the driver mode to station mode to allow
+	 * normal station operations like scanning to be completed.
+	 */
+	int (*deinit_ap)(void *priv);
 };
 
 

src/drivers/driver_ndis.c

@@ -3271,5 +3271,6 @@ const struct wpa_driver_ops wpa_driver_ndis_ops = {
 	NULL /* remain_on_channel */,
 	NULL /* cancel_remain_on_channel */,
 	NULL /* probe_req_report */,
-	NULL /* disable_11b_rates */
+	NULL /* disable_11b_rates */,
+	NULL /* deinit_ap */
 };

src/drivers/driver_nl80211.c

@@ -1959,6 +1959,9 @@ static int wpa_driver_nl80211_authenticate(
 
 	drv->associated = 0;
 	os_memset(drv->auth_bssid, 0, ETH_ALEN);
+	/* FIX: IBSS mode */
+	if (drv->nlmode != NL80211_IFTYPE_STATION)
+		wpa_driver_nl80211_set_mode(priv, IEEE80211_MODE_INFRA);
 
 	if (wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_INFRA) < 0)
 		return -1;
@@ -3632,6 +3635,9 @@ done:
 	} else if (!ret && nlmode != NL80211_IFTYPE_AP) {
 		/* Remove additional AP mode functionality */
 		nl80211_remove_monitor_interface(drv);
+#ifndef HOSTAPD
+		drv->beacon_set = 0;
+#endif /* HOSTAPD */
 	}
 
 	if (ret)
@@ -4629,6 +4635,16 @@ static int wpa_driver_nl80211_disable_11b_rates(void *priv, int disabled)
 }
 
 
+static int wpa_driver_nl80211_deinit_ap(void *priv)
+{
+	struct wpa_driver_nl80211_data *drv = priv;
+	if (drv->nlmode != NL80211_IFTYPE_AP)
+		return -1;
+	wpa_driver_nl80211_del_beacon(drv);
+	return wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_INFRA);
+}
+
+
 const struct wpa_driver_ops wpa_driver_nl80211_ops = {
 	.name = "nl80211",
 	.desc = "Linux nl80211/cfg80211",
@@ -4684,4 +4700,5 @@ const struct wpa_driver_ops wpa_driver_nl80211_ops = {
 	.alloc_interface_addr = wpa_driver_nl80211_alloc_interface_addr,
 	.release_interface_addr = wpa_driver_nl80211_release_interface_addr,
 	.disable_11b_rates = wpa_driver_nl80211_disable_11b_rates,
+	.deinit_ap = wpa_driver_nl80211_deinit_ap,
 };

wpa_supplicant/driver_i.h

@@ -449,4 +449,11 @@ static inline int wpa_drv_disable_11b_rates(struct wpa_supplicant *wpa_s,
 	return -1;
 }
 
+static inline int wpa_drv_deinit_ap(struct wpa_supplicant *wpa_s)
+{
+	if (wpa_s->driver->deinit_ap)
+		return wpa_s->driver->deinit_ap(wpa_s->drv_priv);
+	return 0;
+}
+
 #endif /* DRIVER_I_H */