/* Copyright (C) 2007-2015 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "soft-interface.h"
#include "main.h"
#include <linux/atomic.h>
#include <linux/byteorder/generic.h>
#include <linux/cache.h>
#include <linux/compiler.h>
#include <linux/errno.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/fs.h>
#include <linux/if_ether.h>
#include <linux/if_vlan.h>
#include <linux/jiffies.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/lockdep.h>
#include <linux/netdevice.h>
#include <linux/percpu.h>
#include <linux/printk.h>
#include <linux/random.h>
#include <linux/rculist.h>
#include <linux/rcupdate.h>
#include <linux/skbuff.h>
#include <linux/slab.h>
#include <linux/socket.h>
#include <linux/spinlock.h>
#include <linux/stddef.h>
#include <linux/string.h>
#include <linux/types.h>
#include <linux/workqueue.h>
#include "bridge_loop_avoidance.h"
#include "debugfs.h"
#include "distributed-arp-table.h"
#include "gateway_client.h"
#include "gateway_common.h"
#include "hard-interface.h"
#include "multicast.h"
#include "network-coding.h"
#include "packet.h"
#include "send.h"
#include "sysfs.h"
#include "translation-table.h"
static int batadv_get_settings(struct net_device *dev, struct ethtool_cmd *cmd);
static void batadv_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *info);
static u32 batadv_get_msglevel(struct net_device *dev);
static void batadv_set_msglevel(struct net_device *dev, u32 value);
static u32 batadv_get_link(struct net_device *dev);
static void batadv_get_strings(struct net_device *dev, u32 stringset, u8 *data);
static void batadv_get_ethtool_stats(struct net_device *dev,
struct ethtool_stats *stats, u64 *data);
static int batadv_get_sset_count(struct net_device *dev, int stringset);
static const struct ethtool_ops batadv_ethtool_ops = {
.get_settings = batadv_get_settings,
.get_drvinfo = batadv_get_drvinfo,
.get_msglevel = batadv_get_msglevel,
.set_msglevel = batadv_set_msglevel,
.get_link = batadv_get_link,
.get_strings = batadv_get_strings,
.get_ethtool_stats = batadv_get_ethtool_stats,
.get_sset_count = batadv_get_sset_count,
};
int batadv_skb_head_push(struct sk_buff *skb, unsigned int len)
{
int result;
/* TODO: We must check if we can release all references to non-payload
* data using skb_header_release in our skbs to allow skb_cow_header to
* work optimally. This means that those skbs are not allowed to read
* or write any data which is before the current position of skb->data
* after that call and thus allow other skbs with the same data buffer
* to write freely in that area.
*/
result = skb_cow_head(skb, len);
if (result < 0)
return result;
skb_push(skb, len);
return 0;
}
static int batadv_interface_open(struct net_device *dev)
{
netif_start_queue(dev);
return 0;
}
static int batadv_interface_release(struct net_device *dev)
{
netif_stop_queue(dev);
return 0;
}
static struct net_device_stats *batadv_interface_stats(struct net_device *dev)
{
struct batadv_priv *bat_priv = netdev_priv(dev);
struct net_device_stats *stats = &bat_priv->stats;
stats->tx_packets = batadv_sum_counter(bat_priv, BATADV_CNT_TX);
stats->tx_bytes = batadv_sum_counter(bat_priv, BATADV_CNT_TX_BYTES);
stat