Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking changes from David S Miller:

 1) Remove the ipv4 routing cache.  Now lookups go directly into the FIB
    trie and use prebuilt routes cached there.

    No more garbage collection, no more rDOS attacks on the routing
    cache.  Instead we now get predictable and consistent performance,
    no matter what the pattern of traffic we service.

    This has been almost 2 years in the making.  Special thanks to
    Julian Anastasov, Eric Dumazet, Steffen Klassert, and others who
    have helped along the way.

    I'm sure that with a change of this magnitude there will be some
    kind of fallout, but such things ought the be simple to fix at this
    point.  Luckily I'm not European so I'll be around all of August to
    fix things :-)

    The major stages of this work here are each fronted by a forced
    merge commit whose commit message contains a top-level description
    of the motivations and implementation issues.

 2) Pre-demux of established ipv4 TCP sockets, saves a route demux on
    input.

 3) TCP SYN/ACK performance tweaks from Eric Dumazet.

 4) Add namespace support for netfilter L4 conntrack helpers, from Gao
    Feng.

 5) Add config mechanism for Energy Efficient Ethernet to ethtool, from
    Yuval Mintz.

 6) Remove quadratic behavior from /proc/net/unix, from Eric Dumazet.

 7) Support for connection tracker helpers in userspace, from Pablo
    Neira Ayuso.

 8) Allow userspace driven TX load balancing functions in TEAM driver,
    from Jiri Pirko.

 9) Kill off NLMSG_PUT and RTA_PUT macros, more gross stuff with
    embedded gotos.

10) TCP Small Queues, essentially minimize the amount of TCP data queued
    up in the packet scheduler layer.  Whereas the existing BQL (Byte
    Queue Limits) limits the pkt_sched --> netdevice queuing levels,
    this controls the TCP --> pkt_sched queueing levels.

    From Eric Dumazet.

11) Reduce the number of get_page/put_page ops done on SKB fragments,
    from Alexander Duyck.

12) Implement protection against blind resets in TCP (RFC 5961), from
    Eric Dumazet.

13) Support the client side of TCP Fast Open, basically the ability to
    send data in the SYN exchange, from Yuchung Cheng.

    Basically, the sender queues up data with a sendmsg() call using
    MSG_FASTOPEN, then they do the connect() which emits the queued up
    fastopen data.

14) Avoid all the problems we get into in TCP when timers or PMTU events
    hit a locked socket.  The TCP Small Queues changes added a
    tcp_release_cb() that allows us to queue work up to the
    release_sock() caller, and that's what we use here too.  From Eric
    Dumazet.

15) Zero copy on TX support for TUN driver, from Michael S. Tsirkin.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1870 commits)
  genetlink: define lockdep_genl_is_held() when CONFIG_LOCKDEP
  r8169: revert "add byte queue limit support".
  ipv4: Change rt->rt_iif encoding.
  net: Make skb->skb_iif always track skb->dev
  ipv4: Prepare for change of rt->rt_iif encoding.
  ipv4: Remove all RTCF_DIRECTSRC handliing.
  ipv4: Really ignore ICMP address requests/replies.
  decnet: Don't set RTCF_DIRECTSRC.
  net/ipv4/ip_vti.c: Fix __rcu warnings detected by sparse.
  ipv4: Remove redundant assignment
  rds: set correct msg_namelen
  openvswitch: potential NULL deref in sample()
  tcp: dont drop MTU reduction indications
  bnx2x: Add new 57840 device IDs
  tcp: avoid oops in tcp_metrics and reset tcpm_stamp
  niu: Change niu_rbr_fill() to use unlikely() to check niu_rbr_add_page() return value
  niu: Fix to check for dma mapping errors.
  net: Fix references to out-of-scope variables in put_cmsg_compat()
  net: ethernet: davinci_emac: add pm_runtime support
  net: ethernet: davinci_emac: Remove unnecessary #include
  ...

1 files changed, 787 insertions, 0 deletions

diff --git a/net/batman-adv/sysfs.c b/net/batman-adv/sysfs.c
new file mode 100644
index 000000000000..66518c75c217
--- /dev/null
+++ b/net/batman-adv/sysfs.c
@@ -0,0 +1,787 @@
+/* Copyright (C) 2010-2012 B.A.T.M.A.N. contributors:
+ *
+ * Marek Lindner
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+#include "main.h"
+#include "sysfs.h"
+#include "translation-table.h"
+#include "originator.h"
+#include "hard-interface.h"
+#include "gateway_common.h"
+#include "gateway_client.h"
+#include "vis.h"
+
+static struct net_device *batadv_kobj_to_netdev(struct kobject *obj)
+{
+	struct device *dev = container_of(obj->parent, struct device, kobj);
+	return to_net_dev(dev);
+}
+
+static struct batadv_priv *batadv_kobj_to_batpriv(struct kobject *obj)
+{
+	struct net_device *net_dev = batadv_kobj_to_netdev(obj);
+	return netdev_priv(net_dev);
+}
+
+#define BATADV_UEV_TYPE_VAR	"BATTYPE="
+#define BATADV_UEV_ACTION_VAR	"BATACTION="
+#define BATADV_UEV_DATA_VAR	"BATDATA="
+
+static char *batadv_uev_action_str[] = {
+	"add",
+	"del",
+	"change"
+};
+
+static char *batadv_uev_type_str[] = {
+	"gw"
+};
+
+/* Use this, if you have customized show and store functions */
+#define BATADV_ATTR(_name, _mode, _show, _store)	\
+struct batadv_attribute batadv_attr_##_name = {		\
+	.attr = {.name = __stringify(_name),		\
+		 .mode = _mode },			\
+	.show   = _show,				\
+	.store  = _store,				\
+};
+
+#define BATADV_ATTR_SIF_STORE_BOOL(_name, _post_func)			\
+ssize_t batadv_store_##_name(struct kobject *kobj,			\
+			     struct attribute *attr, char *buff,	\
+			     size_t count)				\
+{									\
+	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);	\
+	struct batadv_priv *bat_priv = netdev_priv(net_dev);		\
+	return __batadv_store_bool_attr(buff, count, _post_func, attr,	\
+					&bat_priv->_name, net_dev);	\
+}
+
+#define BATADV_ATTR_SIF_SHOW_BOOL(_name)				\
+ssize_t batadv_show_##_name(struct kobject *kobj,			\
+			    struct attribute *attr, char *buff)		\
+{									\
+	struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);	\
+	return sprintf(buff, "%s\n",					\
+		       atomic_read(&bat_priv->_name) == 0 ?		\
+		       "disabled" : "enabled");				\
+}									\
+
+/* Use this, if you are going to turn a [name] in the soft-interface
+ * (bat_priv) on or off
+ */
+#define BATADV_ATTR_SIF_BOOL(_name, _mode, _post_func)			\
+	static BATADV_ATTR_SIF_STORE_BOOL(_name, _post_func)		\
+	static BATADV_ATTR_SIF_SHOW_BOOL(_name)				\
+	static BATADV_ATTR(_name, _mode, batadv_show_##_name,		\
+			   batadv_store_##_name)
+
+
+#define BATADV_ATTR_SIF_STORE_UINT(_name, _min, _max, _post_func)	\
+ssize_t batadv_store_##_name(struct kobject *kobj,			\
+			     struct attribute *attr, char *buff,	\
+			     size_t count)				\
+{									\
+	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);	\
+	struct batadv_priv *bat_priv = netdev_priv(net_dev);		\
+	return __batadv_store_uint_attr(buff, count, _min, _max,	\
+					_post_func, attr,		\
+					&bat_priv->_name, net_dev);	\
+}
+
+#define BATADV_ATTR_SIF_SHOW_UINT(_name)				\
+ssize_t batadv_show_##_name(struct kobject *kobj,			\
+			    struct attribute *attr, char *buff)		\
+{									\
+	struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);	\
+	return sprintf(buff, "%i\n", atomic_read(&bat_priv->_name));	\
+}									\
+
+/* Use this, if you are going to set [name] in the soft-interface
+ * (bat_priv) to an unsigned integer value
+ */
+#define BATADV_ATTR_SIF_UINT(_name, _mode, _min, _max, _post_func)	\
+	static BATADV_ATTR_SIF_STORE_UINT(_name, _min, _max, _post_func)\
+	static BATADV_ATTR_SIF_SHOW_UINT(_name)				\
+	static BATADV_ATTR(_name, _mode, batadv_show_##_name,		\
+			   batadv_store_##_name)
+
+
+#define BATADV_ATTR_HIF_STORE_UINT(_name, _min, _max, _post_func)	\
+ssize_t batadv_store_##_name(struct kobject *kobj,			\
+			     struct attribute *attr, char *buff,	\
+			     size_t count)				\
+{									\
+	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);	\
+	struct batadv_hard_iface *hard_iface;				\
+	ssize_t length;							\
+									\
+	hard_iface = batadv_hardif_get_by_netdev(net_dev);		\
+	if (!hard_iface)						\
+		return 0;						\
+									\
+	length = __batadv_store_uint_attr(buff, count, _min, _max,	\
+					  _post_func, attr,		\
+					  &hard_iface->_name, net_dev);	\
+									\
+	batadv_hardif_free_ref(hard_iface);				\
+	return length;							\
+}
+
+#define BATADV_ATTR_HIF_SHOW_UINT(_name)				\
+ssize_t batadv_show_##_name(struct kobject *kobj,			\
+			    struct attribute *attr, char *buff)		\
+{									\
+	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);	\
+	struct batadv_hard_iface *hard_iface;				\
+	ssize_t length;							\
+									\
+	hard_iface = batadv_hardif_get_by_netdev(net_dev);		\
+	if (!hard_iface)						\
+		return 0;						\
+									\
+	length = sprintf(buff, "%i\n", atomic_read(&hard_iface->_name));\
+									\
+	batadv_hardif_free_ref(hard_iface);				\
+	return length;							\
+}
+
+/* Use this, if you are going to set [name] in hard_iface to an
+ * unsigned integer value
+ */
+#define BATADV_ATTR_HIF_UINT(_name, _mode, _min, _max, _post_func)	\
+	static BATADV_ATTR_HIF_STORE_UINT(_name, _min, _max, _post_func)\
+	static BATADV_ATTR_HIF_SHOW_UINT(_name)				\
+	static BATADV_ATTR(_name, _mode, batadv_show_##_name,		\
+			   batadv_store_##_name)
+
+
+static int batadv_store_bool_attr(char *buff, size_t count,
+				  struct net_device *net_dev,
+				  const char *attr_name, atomic_t *attr)
+{
+	int enabled = -1;
+
+	if (buff[count - 1] == '\n')
+		buff[count - 1] = '\0';
+
+	if ((strncmp(buff, "1", 2) == 0) ||
+	    (strncmp(buff, "enable", 7) == 0) ||
+	    (strncmp(buff, "enabled", 8) == 0))
+		enabled = 1;
+
+	if ((strncmp(buff, "0", 2) == 0) ||
+	    (strncmp(buff, "disable", 8) == 0) ||
+	    (strncmp(buff, "disabled", 9) == 0))
+		enabled = 0;
+
+	if (enabled < 0) {
+		batadv_info(net_dev, "%s: Invalid parameter received: %s\n",
+			    attr_name, buff);
+		return -EINVAL;
+	}
+
+	if (atomic_read(attr) == enabled)
+		return count;
+
+	batadv_info(net_dev, "%s: Changing from: %s to: %s\n", attr_name,
+		    atomic_read(attr) == 1 ? "enabled" : "disabled",
+		    enabled == 1 ? "enabled" : "disabled");
+
+	atomic_set(attr, (unsigned int)enabled);
+	return count;
+}
+
+static inline ssize_t
+__batadv_store_bool_attr(char *buff, size_t count,
+			 void (*post_func)(struct net_device *),
+			 struct attribute *attr,
+			 atomic_t *attr_store, struct net_device *net_dev)
+{
+	int ret;
+
+	ret = batadv_store_bool_attr(buff, count, net_dev, attr->name,
+				     attr_store);
+	if (post_func && ret)
+		post_func(net_dev);
+
+	return ret;
+}
+
+static int batadv_store_uint_attr(const char *buff, size_t count,
+				  struct net_device *net_dev,
+				  const char *attr_name,
+				  unsigned int min, unsigned int max,
+				  atomic_t *attr)
+{
+	unsigned long uint_val;
+	int ret;
+
+	ret = kstrtoul(buff, 10, &uint_val);
+	if (ret) {
+		batadv_info(net_dev, "%s: Invalid parameter received: %s\n",
+			    attr_name, buff);
+		return -EINVAL;
+	}
+
+	if (uint_val < min) {
+		batadv_info(net_dev, "%s: Value is too small: %lu min: %u\n",
+			    attr_name, uint_val, min);
+		return -EINVAL;
+	}
+
+	if (uint_val > max) {
+		batadv_info(net_dev, "%s: Value is too big: %lu max: %u\n",
+			    attr_name, uint_val, max);
+		return -EINVAL;
+	}
+
+	if (atomic_read(attr) == uint_val)
+		return count;
+
+	batadv_info(net_dev, "%s: Changing from: %i to: %lu\n",
+		    attr_name, atomic_read(attr), uint_val);
+
+	atomic_set(attr, uint_val);
+	return count;
+}
+
+static inline ssize_t
+__batadv_store_uint_attr(const char *buff, size_t count,
+			 int min, int max,
+			 void (*post_func)(struct net_device *),
+			 const struct attribute *attr,
+			 atomic_t *attr_store, struct net_device *net_dev)
+{
+	int ret;
+
+	ret = batadv_store_uint_attr(buff, count, net_dev, attr->name, min, max,
+				     attr_store);
+	if (post_func && ret)
+		post_func(net_dev);
+
+	return ret;
+}
+
+static ssize_t batadv_show_vis_mode(struct kobject *kobj,
+				    struct attribute *attr, char *buff)
+{
+	struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);
+	int vis_mode = atomic_read(&bat_priv->vis_mode);
+	const char *mode;
+
+	if (vis_mode == BATADV_VIS_TYPE_CLIENT_UPDATE)
+		mode = "client";
+	else
+		mode = "server";
+
+	return sprintf(buff, "%s\n", mode);
+}
+
+static ssize_t batadv_store_vis_mode(struct kobject *kobj,
+				     struct attribute *attr, char *buff,
+				     size_t count)
+{
+	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
+	struct batadv_priv *bat_priv = netdev_priv(net_dev);
+	unsigned long val;
+	int ret, vis_mode_tmp = -1;
+	const char *old_mode, *new_mode;
+
+	ret = kstrtoul(buff, 10, &val);
+
+	if (((count == 2) && (!ret) &&
+	     (val == BATADV_VIS_TYPE_CLIENT_UPDATE)) ||
+	    (strncmp(buff, "client", 6) == 0) ||
+	    (strncmp(buff, "off", 3) == 0))
+		vis_mode_tmp = BATADV_VIS_TYPE_CLIENT_UPDATE;
+
+	if (((count == 2) && (!ret) &&
+	     (val == BATADV_VIS_TYPE_SERVER_SYNC)) ||
+	    (strncmp(buff, "server", 6) == 0))
+		vis_mode_tmp = BATADV_VIS_TYPE_SERVER_SYNC;
+
+	if (vis_mode_tmp < 0) {
+		if (buff[count - 1] == '\n')
+			buff[count - 1] = '\0';
+
+		batadv_info(net_dev,
+			    "Invalid parameter for 'vis mode' setting received: %s\n",
+			    buff);
+		return -EINVAL;
+	}
+
+	if (atomic_read(&bat_priv->vis_mode) == vis_mode_tmp)
+		return count;
+
+	if (atomic_read(&bat_priv->vis_mode) == BATADV_VIS_TYPE_CLIENT_UPDATE)
+		old_mode =  "client";
+	else
+		old_mode = "server";
+
+	if (vis_mode_tmp == BATADV_VIS_TYPE_CLIENT_UPDATE)
+		new_mode =  "client";
+	else
+		new_mode = "server";
+
+	batadv_info(net_dev, "Changing vis mode from: %s to: %s\n", old_mode,
+		    new_mode);
+
+	atomic_set(&bat_priv->vis_mode, (unsigned int)vis_mode_tmp);
+	return count;
+}
+
+static ssize_t batadv_show_bat_algo(struct kobject *kobj,
+				    struct attribute *attr, char *buff)
+{
+	struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);
+	return sprintf(buff, "%s\n", bat_priv->bat_algo_ops->name);
+}
+
+static void batadv_post_gw_deselect(struct net_device *net_dev)
+{
+	struct batadv_priv *bat_priv = netdev_priv(net_dev);
+	batadv_gw_deselect(bat_priv);
+}
+
+static ssize_t batadv_show_gw_mode(struct kobject *kobj, struct attribute *attr,
+				   char *buff)
+{
+	struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);
+	int bytes_written;
+
+	switch (atomic_read(&bat_priv->gw_mode)) {
+	case BATADV_GW_MODE_CLIENT:
+		bytes_written = sprintf(buff, "%s\n",
+					BATADV_GW_MODE_CLIENT_NAME);
+		break;
+	case BATADV_GW_MODE_SERVER:
+		bytes_written = sprintf(buff, "%s\n",
+					BATADV_GW_MODE_SERVER_NAME);
+		break;
+	default:
+		bytes_written = sprintf(buff, "%s\n",
+					BATADV_GW_MODE_OFF_NAME);
+		break;
+	}
+
+	return bytes_written;
+}
+
+static ssize_t batadv_store_gw_mode(struct kobject *kobj,
+				    struct attribute *attr, char *buff,
+				    size_t count)
+{
+	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
+	struct batadv_priv *bat_priv = netdev_priv(net_dev);
+	char *curr_gw_mode_str;
+	int gw_mode_tmp = -1;
+
+	if (buff[count - 1] == '\n')
+		buff[count - 1] = '\0';
+
+	if (strncmp(buff, BATADV_GW_MODE_OFF_NAME,
+		    strlen(BATADV_GW_MODE_OFF_NAME)) == 0)
+		gw_mode_tmp = BATADV_GW_MODE_OFF;
+
+	if (strncmp(buff, BATADV_GW_MODE_CLIENT_NAME,
+		    strlen(BATADV_GW_MODE_CLIENT_NAME)) == 0)
+		gw_mode_tmp = BATADV_GW_MODE_CLIENT;
+
+	if (strncmp(buff, BATADV_GW_MODE_SERVER_NAME,
+		    strlen(BATADV_GW_MODE_SERVER_NAME)) == 0)
+		gw_mode_tmp = BATADV_GW_MODE_SERVER;
+
+	if (gw_mode_tmp < 0) {
+		batadv_info(net_dev,
+			    "Invalid parameter for 'gw mode' setting received: %s\n",
+			    buff);
+		return -EINVAL;
+	}
+
+	if (atomic_read(&bat_priv->gw_mode) == gw_mode_tmp)
+		return count;
+
+	switch (atomic_read(&bat_priv->gw_mode)) {
+	case BATADV_GW_MODE_CLIENT:
+		curr_gw_mode_str = BATADV_GW_MODE_CLIENT_NAME;
+		break;
+	case BATADV_GW_MODE_SERVER:
+		curr_gw_mode_str = BATADV_GW_MODE_SERVER_NAME;
+		break;
+	default:
+		curr_gw_mode_str = BATADV_GW_MODE_OFF_NAME;
+		break;
+	}
+
+	batadv_info(net_dev, "Changing gw mode from: %s to: %s\n",
+		    curr_gw_mode_str, buff);
+
+	batadv_gw_deselect(bat_priv);
+	atomic_set(&bat_priv->gw_mode, (unsigned int)gw_mode_tmp);
+	return count;
+}
+
+static ssize_t batadv_show_gw_bwidth(struct kobject *kobj,
+				     struct attribute *attr, char *buff)
+{
+	struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);
+	int down, up;
+	int gw_bandwidth = atomic_read(&bat_priv->gw_bandwidth);
+
+	batadv_gw_bandwidth_to_kbit(gw_bandwidth, &down, &up);
+	return sprintf(buff, "%i%s/%i%s\n",
+		       (down > 2048 ? down / 1024 : down),
+		       (down > 2048 ? "MBit" : "KBit"),
+		       (up > 2048 ? up / 1024 : up),
+		       (up > 2048 ? "MBit" : "KBit"));
+}
+
+static ssize_t batadv_store_gw_bwidth(struct kobject *kobj,
+				      struct attribute *attr, char *buff,
+				      size_t count)
+{
+	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
+
+	if (buff[count - 1] == '\n')
+		buff[count - 1] = '\0';
+
+	return batadv_gw_bandwidth_set(net_dev, buff, count);
+}
+
+BATADV_ATTR_SIF_BOOL(aggregated_ogms, S_IRUGO | S_IWUSR, NULL);
+BATADV_ATTR_SIF_BOOL(bonding, S_IRUGO | S_IWUSR, NULL);
+#ifdef CONFIG_BATMAN_ADV_BLA
+BATADV_ATTR_SIF_BOOL(bridge_loop_avoidance, S_IRUGO | S_IWUSR, NULL);
+#endif
+BATADV_ATTR_SIF_BOOL(fragmentation, S_IRUGO | S_IWUSR, batadv_update_min_mtu);
+BATADV_ATTR_SIF_BOOL(ap_isolation, S_IRUGO | S_IWUSR, NULL);
+static BATADV_ATTR(vis_mode, S_IRUGO | S_IWUSR, batadv_show_vis_mode,
+		   batadv_store_vis_mode);
+static BATADV_ATTR(routing_algo, S_IRUGO, batadv_show_bat_algo, NULL);
+static BATADV_ATTR(gw_mode, S_IRUGO | S_IWUSR, batadv_show_gw_mode,
+		   batadv_store_gw_mode);
+BATADV_ATTR_SIF_UINT(orig_interval, S_IRUGO | S_IWUSR, 2 * BATADV_JITTER,
+		     INT_MAX, NULL);
+BATADV_ATTR_SIF_UINT(hop_penalty, S_IRUGO | S_IWUSR, 0, BATADV_TQ_MAX_VALUE,
+		     NULL);
+BATADV_ATTR_SIF_UINT(gw_sel_class, S_IRUGO | S_IWUSR, 1, BATADV_TQ_MAX_VALUE,
+		     batadv_post_gw_deselect);
+static BATADV_ATTR(gw_bandwidth, S_IRUGO | S_IWUSR, batadv_show_gw_bwidth,
+		   batadv_store_gw_bwidth);
+#ifdef CONFIG_BATMAN_ADV_DEBUG
+BATADV_ATTR_SIF_UINT(log_level, S_IRUGO | S_IWUSR, 0, BATADV_DBG_ALL, NULL);
+#endif
+
+static struct batadv_attribute *batadv_mesh_attrs[] = {
+	&batadv_attr_aggregated_ogms,
+	&batadv_attr_bonding,
+#ifdef CONFIG_BATMAN_ADV_BLA
+	&batadv_attr_bridge_loop_avoidance,
+#endif
+	&batadv_attr_fragmentation,
+	&batadv_attr_ap_isolation,
+	&batadv_attr_vis_mode,
+	&batadv_attr_routing_algo,
+	&batadv_attr_gw_mode,
+	&batadv_attr_orig_interval,
+	&batadv_attr_hop_penalty,
+	&batadv_attr_gw_sel_class,
+	&batadv_attr_gw_bandwidth,
+#ifdef CONFIG_BATMAN_ADV_DEBUG
+	&batadv_attr_log_level,
+#endif
+	NULL,
+};
+
+int batadv_sysfs_add_meshif(struct net_device *dev)
+{
+	struct kobject *batif_kobject = &dev->dev.kobj;
+	struct batadv_priv *bat_priv = netdev_priv(dev);
+	struct batadv_attribute **bat_attr;
+	int err;
+
+	bat_priv->mesh_obj = kobject_create_and_add(BATADV_SYSFS_IF_MESH_SUBDIR,
+						    batif_kobject);
+	if (!bat_priv->mesh_obj) {
+		batadv_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name,
+			   BATADV_SYSFS_IF_MESH_SUBDIR);
+		goto out;
+	}
+
+	for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) {
+		err = sysfs_create_file(bat_priv->mesh_obj,
+					&((*bat_attr)->attr));
+		if (err) {
+			batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n",
+				   dev->name, BATADV_SYSFS_IF_MESH_SUBDIR,
+				   ((*bat_attr)->attr).name);
+			goto rem_attr;
+		}
+	}
+
+	return 0;
+
+rem_attr:
+	for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr)
+		sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr));
+
+	kobject_put(bat_priv->mesh_obj);
+	bat_priv->mesh_obj = NULL;
+out:
+	return -ENOMEM;
+}
+
+void batadv_sysfs_del_meshif(struct net_device *dev)
+{
+	struct batadv_priv *bat_priv = netdev_priv(dev);
+	struct batadv_attribute **bat_attr;
+
+	for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr)
+		sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr));
+
+	kobject_put(bat_priv->mesh_obj);
+	bat_priv->mesh_obj = NULL;
+}
+
+static ssize_t batadv_show_mesh_iface(struct kobject *kobj,
+				      struct attribute *attr, char *buff)
+{
+	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
+	struct batadv_hard_iface *hard_iface;
+	ssize_t length;
+	const char *ifname;
+
+	hard_iface = batadv_hardif_get_by_netdev(net_dev);
+	if (!hard_iface)
+		return 0;
+
+	if (hard_iface->if_status == BATADV_IF_NOT_IN_USE)
+		ifname =  "none";
+	else
+		ifname = hard_iface->soft_iface->name;
+
+	length = sprintf(buff, "%s\n", ifname);
+
+	batadv_hardif_free_ref(hard_iface);
+
+	return length;
+}
+
+static ssize_t batadv_store_mesh_iface(struct kobject *kobj,
+				       struct attribute *attr, char *buff,
+				       size_t count)
+{
+	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
+	struct batadv_hard_iface *hard_iface;
+	int status_tmp = -1;
+	int ret = count;
+
+	hard_iface = batadv_hardif_get_by_netdev(net_dev);
+	if (!hard_iface)
+		return count;
+
+	if (buff[count - 1] == '\n')
+		buff[count - 1] = '\0';
+
+	if (strlen(buff) >= IFNAMSIZ) {
+		pr_err("Invalid parameter for 'mesh_iface' setting received: interface name too long '%s'\n",
+		       buff);
+		batadv_hardif_free_ref(hard_iface);
+		return -EINVAL;
+	}
+
+	if (strncmp(buff, "none", 4) == 0)
+		status_tmp = BATADV_IF_NOT_IN_USE;
+	else
+		status_tmp = BATADV_IF_I_WANT_YOU;
+
+	if (hard_iface->if_status == status_tmp)
+		goto out;
+
+	if ((hard_iface->soft_iface) &&
+	    (strncmp(hard_iface->soft_iface->name, buff, IFNAMSIZ) == 0))
+		goto out;
+
+	if (!rtnl_trylock()) {
+		ret = -ERESTARTSYS;
+		goto out;
+	}
+
+	if (status_tmp == BATADV_IF_NOT_IN_USE) {
+		batadv_hardif_disable_interface(hard_iface);
+		goto unlock;
+	}
+
+	/* if the interface already is in use */
+	if (hard_iface->if_status != BATADV_IF_NOT_IN_USE)
+		batadv_hardif_disable_interface(hard_iface);
+
+	ret = batadv_hardif_enable_interface(hard_iface, buff);
+
+unlock:
+	rtnl_unlock();
+out:
+	batadv_hardif_free_ref(hard_iface);
+	return ret;
+}
+
+static ssize_t batadv_show_iface_status(struct kobject *kobj,
+					struct attribute *attr, char *buff)
+{
+	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
+	struct batadv_hard_iface *hard_iface;
+	ssize_t length;
+
+	hard_iface = batadv_hardif_get_by_netdev(net_dev);
+	if (!hard_iface)
+		return 0;
+
+	switch (hard_iface->if_status) {
+	case BATADV_IF_TO_BE_REMOVED:
+		length = sprintf(buff, "disabling\n");
+		break;
+	case BATADV_IF_INACTIVE:
+		length = sprintf(buff, "inactive\n");
+		break;
+	case BATADV_IF_ACTIVE:
+		length = sprintf(buff, "active\n");
+		break;
+	case BATADV_IF_TO_BE_ACTIVATED:
+		length = sprintf(buff, "enabling\n");
+		break;
+	case BATADV_IF_NOT_IN_USE:
+	default:
+		length = sprintf(buff, "not in use\n");
+		break;
+	}
+
+	batadv_hardif_free_ref(hard_iface);
+
+	return length;
+}
+
+static BATADV_ATTR(mesh_iface, S_IRUGO | S_IWUSR, batadv_show_mesh_iface,
+		   batadv_store_mesh_iface);
+static BATADV_ATTR(iface_status, S_IRUGO, batadv_show_iface_status, NULL);
+
+static struct batadv_attribute *batadv_batman_attrs[] = {
+	&batadv_attr_mesh_iface,
+	&batadv_attr_iface_status,
+	NULL,
+};
+
+int batadv_sysfs_add_hardif(struct kobject **hardif_obj, struct net_device *dev)
+{
+	struct kobject *hardif_kobject = &dev->dev.kobj;
+	struct batadv_attribute **bat_attr;
+	int err;
+
+	*hardif_obj = kobject_create_and_add(BATADV_SYSFS_IF_BAT_SUBDIR,
+					     hardif_kobject);
+
+	if (!*hardif_obj) {
+		batadv_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name,
+			   BATADV_SYSFS_IF_BAT_SUBDIR);
+		goto out;
+	}
+
+	for (bat_attr = batadv_batman_attrs; *bat_attr; ++bat_attr) {
+		err = sysfs_create_file(*hardif_obj, &((*bat_attr)->attr));
+		if (err) {
+			batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n",
+				   dev->name, BATADV_SYSFS_IF_BAT_SUBDIR,
+				   ((*bat_attr)->attr).name);
+			goto rem_attr;
+		}
+	}
+
+	return 0;
+
+rem_attr:
+	for (bat_attr = batadv_batman_attrs; *bat_attr; ++bat_attr)
+		sysfs_remove_file(*hardif_obj, &((*bat_attr)->attr));
+out:
+	return -ENOMEM;
+}
+
+void batadv_sysfs_del_hardif(struct kobject **hardif_obj)
+{
+	kobject_put(*hardif_obj);
+	*hardif_obj = NULL;
+}
+
+int batadv_throw_uevent(struct batadv_priv *bat_priv, enum batadv_uev_type type,
+			enum batadv_uev_action action, const char *data)
+{
+	int ret = -ENOMEM;
+	struct batadv_hard_iface *primary_if = NULL;
+	struct kobject *bat_kobj;
+	char *uevent_env[4] = { NULL, NULL, NULL, NULL };
+
+	primary_if = batadv_primary_if_get_selected(bat_priv);
+	if (!primary_if)
+		goto out;
+
+	bat_kobj = &primary_if->soft_iface->dev.kobj;
+
+	uevent_env[0] = kmalloc(strlen(BATADV_UEV_TYPE_VAR) +
+				strlen(batadv_uev_type_str[type]) + 1,
+				GFP_ATOMIC);
+	if (!uevent_env[0])
+		goto out;
+
+	sprintf(uevent_env[0], "%s%s", BATADV_UEV_TYPE_VAR,
+		batadv_uev_type_str[type]);
+
+	uevent_env[1] = kmalloc(strlen(BATADV_UEV_ACTION_VAR) +
+				strlen(batadv_uev_action_str[action]) + 1,
+				GFP_ATOMIC);
+	if (!uevent_env[1])
+		goto out;
+
+	sprintf(uevent_env[1], "%s%s", BATADV_UEV_ACTION_VAR,
+		batadv_uev_action_str[action]);
+
+	/* If the event is DEL, ignore the data field */
+	if (action != BATADV_UEV_DEL) {
+		uevent_env[2] = kmalloc(strlen(BATADV_UEV_DATA_VAR) +
+					strlen(data) + 1, GFP_ATOMIC);
+		if (!uevent_env[2])
+			goto out;
+
+		sprintf(uevent_env[2], "%s%s", BATADV_UEV_DATA_VAR, data);
+	}
+
+	ret = kobject_uevent_env(bat_kobj, KOBJ_CHANGE, uevent_env);
+out:
+	kfree(uevent_env[0]);
+	kfree(uevent_env[1]);
+	kfree(uevent_env[2]);
+
+	if (primary_if)
+		batadv_hardif_free_ref(primary_if);
+
+	if (ret)
+		batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+			   "Impossible to send uevent for (%s,%s,%s) event (err: %d)\n",
+			   batadv_uev_type_str[type],
+			   batadv_uev_action_str[action],
+			   (action == BATADV_UEV_DEL ? "NULL" : data), ret);
+	return ret;
+}