dbus: Add getter for WPS properties

Add "WPS" property to the DBus interface that allows to
identify the active WPS method of a BSS.

Signed-hostap: Sven Neumann <s.neumann@raumfeld.com>

wpa_supplicant/dbus/dbus_new.c

@@ -2236,6 +2236,10 @@ static const struct wpa_dbus_property_desc wpas_dbus_bss_properties[] = {
 	  wpas_dbus_getter_bss_rsn,
 	  NULL
 	},
+	{ "WPS", WPAS_DBUS_NEW_IFACE_BSS, "a{sv}",
+	  wpas_dbus_getter_bss_wps,
+	  NULL
+	},
 	{ "IEs", WPAS_DBUS_NEW_IFACE_BSS, "ay",
 	  wpas_dbus_getter_bss_ies,
 	  NULL

wpa_supplicant/dbus/dbus_new.h

@@ -39,6 +39,7 @@ enum wpas_dbus_bss_prop {
 	WPAS_DBUS_BSS_PROP_RATES,
 	WPAS_DBUS_BSS_PROP_WPA,
 	WPAS_DBUS_BSS_PROP_RSN,
+	WPAS_DBUS_BSS_PROP_WPS,
 	WPAS_DBUS_BSS_PROP_IES,
 };
 

wpa_supplicant/dbus/dbus_new_handlers.c

@@ -3403,6 +3403,63 @@ dbus_bool_t wpas_dbus_getter_bss_rsn(DBusMessageIter *iter, DBusError *error,
 }
 
 
+/**
+ * wpas_dbus_getter_bss_wps - Return the WPS options of a BSS
+ * @iter: Pointer to incoming dbus message iter
+ * @error: Location to store error on failure
+ * @user_data: Function specific data
+ * Returns: TRUE on success, FALSE on failure
+ *
+ * Getter for "WPS" property.
+ */
+dbus_bool_t wpas_dbus_getter_bss_wps(DBusMessageIter *iter, DBusError *error,
+				     void *user_data)
+{
+	struct bss_handler_args *args = user_data;
+	struct wpa_bss *res;
+#ifdef CONFIG_WPS
+	struct wpabuf *wps_ie;
+#endif /* CONFIG_WPS */
+	DBusMessageIter iter_dict, variant_iter;
+	const char *type = "";
+
+	res = get_bss_helper(args, error, __func__);
+	if (!res)
+		return FALSE;
+
+	if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT,
+					      "a{sv}", &variant_iter))
+		goto nomem;
+
+	if (!wpa_dbus_dict_open_write(&variant_iter, &iter_dict))
+		goto nomem;
+
+#ifdef CONFIG_WPS
+	wps_ie = wpa_bss_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE);
+	if (wps_ie) {
+		if (wps_is_selected_pbc_registrar(wps_ie))
+			type = "pbc";
+		else if (wps_is_selected_pin_registrar(wps_ie))
+			type = "pin";
+	}
+#endif /* CONFIG_WPS */
+
+	if (!wpa_dbus_dict_append_string(&iter_dict, "Type", type))
+		goto nomem;
+
+	if (!wpa_dbus_dict_close_write(&variant_iter, &iter_dict))
+		goto nomem;
+	if (!dbus_message_iter_close_container(iter, &variant_iter))
+		goto nomem;
+
+	return TRUE;
+
+nomem:
+	dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
+	return FALSE;
+}
+
+
 /**
  * wpas_dbus_getter_bss_ies - Return all IEs of a BSS
  * @iter: Pointer to incoming dbus message iter

wpa_supplicant/dbus/dbus_new_handlers.h

@@ -242,6 +242,9 @@ dbus_bool_t wpas_dbus_getter_bss_wpa(DBusMessageIter *iter, DBusError *error,
 dbus_bool_t wpas_dbus_getter_bss_rsn(DBusMessageIter *iter, DBusError *error,
 				     void *user_data);
 
+dbus_bool_t wpas_dbus_getter_bss_wps(DBusMessageIter *iter, DBusError *error,
+				     void *user_data);
+
 dbus_bool_t wpas_dbus_getter_bss_ies(DBusMessageIter *iter, DBusError *error,
 				     void *user_data);
 

wpa_supplicant/notify.c

@@ -323,6 +323,9 @@ void wpas_notify_bss_rsnie_changed(struct wpa_supplicant *wpa_s,
 void wpas_notify_bss_wps_changed(struct wpa_supplicant *wpa_s,
 				 unsigned int id)
 {
+#ifdef CONFIG_WPS
+	wpas_dbus_bss_signal_prop_changed(wpa_s, WPAS_DBUS_BSS_PROP_WPS, id);
+#endif /* CONFIG_WPS */
 }