wireless: add ubus method for reloading configuration

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

ubus.c

@@ -1081,6 +1081,28 @@ get_wdev(struct blob_attr *msg, int *ret)
 	return wdev;
 }
 
+static int
+netifd_handle_wdev_reconf(struct ubus_context *ctx, struct ubus_object *obj,
+		          struct ubus_request_data *req, const char *method,
+		          struct blob_attr *msg)
+{
+	struct wireless_device *wdev;
+	int ret;
+
+	wdev = get_wdev(msg, &ret);
+	if (ret == UBUS_STATUS_NOT_FOUND)
+		return ret;
+
+	if (wdev) {
+		wireless_device_reconf(wdev);
+	} else {
+		vlist_for_each_element(&wireless_devices, wdev, node)
+			wireless_device_reconf(wdev);
+	}
+
+	return 0;
+}
+
 static int
 netifd_handle_wdev_up(struct ubus_context *ctx, struct ubus_object *obj,
 		      struct ubus_request_data *req, const char *method,
@@ -1189,6 +1211,7 @@ netifd_handle_wdev_notify(struct ubus_context *ctx, struct ubus_object *obj,
 static struct ubus_method wireless_object_methods[] = {
 	{ .name = "up", .handler = netifd_handle_wdev_up },
 	{ .name = "down", .handler = netifd_handle_wdev_down },
+	{ .name = "reconf", .handler = netifd_handle_wdev_reconf },
 	{ .name = "status", .handler = netifd_handle_wdev_status },
 	{ .name = "notify", .handler = netifd_handle_wdev_notify },
 	{ .name = "get_validate", .handler = netifd_handle_wdev_get_validate },

wireless.c

@@ -282,7 +282,7 @@ wireless_device_run_handler(struct wireless_device *wdev, bool up)
 }
 
 static void
-__wireless_device_set_up(struct wireless_device *wdev)
+__wireless_device_set_up(struct wireless_device *wdev, int force)
 {
 	if (wdev->disabled)
 		return;
@@ -293,7 +293,7 @@ __wireless_device_set_up(struct wireless_device *wdev)
 	if (!wdev->autostart)
 		return;
 
-	if (wdev->state != IFS_DOWN || config_init)
+	if (!force && (wdev->state != IFS_DOWN || config_init))
 		return;
 
 	free(wdev->prev_config);
@@ -320,7 +320,7 @@ wdev_handle_config_change(struct wireless_device *wdev)
 	switch(state) {
 	case IFC_NORMAL:
 	case IFC_RELOAD:
-		__wireless_device_set_up(wdev);
+		__wireless_device_set_up(wdev, 0);
 
 		wdev->config_state = IFC_NORMAL;
 		break;
@@ -363,7 +363,15 @@ wireless_device_set_up(struct wireless_device *wdev)
 {
 	wdev->retry = WIRELESS_SETUP_RETRY;
 	wdev->autostart = true;
-	__wireless_device_set_up(wdev);
+	__wireless_device_set_up(wdev, 0);
+}
+
+void
+wireless_device_reconf(struct wireless_device *wdev)
+{
+	wdev->retry = WIRELESS_SETUP_RETRY;
+	wdev->autostart = true;
+	__wireless_device_set_up(wdev, 1);
 }
 
 static void
@@ -1001,5 +1009,5 @@ wireless_start_pending(void)
 	struct wireless_device *wdev;
 
 	vlist_for_each_element(&wireless_devices, wdev, node)
-		__wireless_device_set_up(wdev);
+		__wireless_device_set_up(wdev, 0);
 }

wireless.h

@@ -93,6 +93,7 @@ struct wireless_process {
 void wireless_device_create(struct wireless_driver *drv, const char *name, struct blob_attr *data);
 void wireless_device_set_up(struct wireless_device *wdev);
 void wireless_device_set_down(struct wireless_device *wdev);
+void wireless_device_reconf(struct wireless_device *wdev);
 void wireless_device_status(struct wireless_device *wdev, struct blob_buf *b);
 void wireless_device_get_validate(struct wireless_device *wdev, struct blob_buf *b);
 void wireless_interface_create(struct wireless_device *wdev, struct blob_attr *data, const char *section);