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/*
* netifd - network interface daemon
* Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
*
* 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, dev->config);
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,
};
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