/* * netifd - network interface daemon * Copyright (C) 2012 Felix Fietkau * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 * as published by the Free Software Foundation * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include "netifd.h" #include "device.h" #include "config.h" #include "system.h" struct tunnel { struct device dev; device_state_cb set_state; }; static int tunnel_set_state(struct device *dev, bool up) { struct tunnel *tun = container_of(dev, struct tunnel, dev); int ret; if (up) { ret = system_add_ip_tunnel(dev->ifname, dev->config); if (ret != 0) return ret; } ret = tun->set_state(dev, up); if (ret || !up) system_del_ip_tunnel(dev->ifname); return ret; } static enum dev_change_type tunnel_reload(struct device *dev, struct blob_attr *attr) { struct blob_attr *tb_dev[__DEV_ATTR_MAX]; const struct uci_blob_param_list *cfg = dev->type->config_params; if (uci_blob_check_equal(dev->config, attr, cfg)) return DEV_CONFIG_NO_CHANGE; if (attr) { memset(tb_dev, 0, sizeof(tb_dev)); blobmsg_parse(device_attr_list.params, __DEV_ATTR_MAX, tb_dev, blob_data(attr), blob_len(attr)); } device_init_settings(dev, tb_dev); return DEV_CONFIG_RESTART; } static struct device * tunnel_create(const char *name, struct blob_attr *attr) { struct tunnel *tun; struct device *dev; tun = calloc(1, sizeof(*tun)); dev = &tun->dev; device_init(dev, &tunnel_device_type, name); tun->set_state = dev->set_state; dev->set_state = tunnel_set_state; device_set_config(dev, &tunnel_device_type, attr); device_set_present(dev, true); return dev; } static void tunnel_free(struct device *dev) { struct tunnel *tun = container_of(dev, struct tunnel, dev); free(tun); } const struct device_type tunnel_device_type = { .name = "IP tunnel", .config_params = &tunnel_attr_list, .reload = tunnel_reload, .create = tunnel_create, .free = tunnel_free, };