Merge branch 'next' into for-linus

26 files changed, 1607 insertions, 1446 deletions

diff --git a/net/batman-adv/Makefile b/net/batman-adv/Makefile
index 2de93d00631..ce686116649 100644
--- a/net/batman-adv/Makefile
+++ b/net/batman-adv/Makefile
@@ -19,8 +19,8 @@
 #
 
 obj-$(CONFIG_BATMAN_ADV) += batman-adv.o
-batman-adv-y += aggregation.o
 batman-adv-y += bat_debugfs.o
+batman-adv-y += bat_iv_ogm.o
 batman-adv-y += bat_sysfs.o
 batman-adv-y += bitarray.o
 batman-adv-y += gateway_client.o
diff --git a/net/batman-adv/aggregation.c b/net/batman-adv/aggregation.c
deleted file mode 100644
index 69467fe71ff..00000000000
--- a/net/batman-adv/aggregation.c
+++ /dev/null
@@ -1,293 +0,0 @@
-/*
- * Copyright (C) 2007-2011 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, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
- *
- */
-
-#include "main.h"
-#include "translation-table.h"
-#include "aggregation.h"
-#include "send.h"
-#include "routing.h"
-#include "hard-interface.h"
-
-/* return true if new_packet can be aggregated with forw_packet */
-static bool can_aggregate_with(const struct batman_packet *new_batman_packet,
-			       struct bat_priv *bat_priv,
-			       int packet_len,
-			       unsigned long send_time,
-			       bool directlink,
-			       const struct hard_iface *if_incoming,
-			       const struct forw_packet *forw_packet)
-{
-	struct batman_packet *batman_packet =
-		(struct batman_packet *)forw_packet->skb->data;
-	int aggregated_bytes = forw_packet->packet_len + packet_len;
-	struct hard_iface *primary_if = NULL;
-	bool res = false;
-
-	/**
-	 * we can aggregate the current packet to this aggregated packet
-	 * if:
-	 *
-	 * - the send time is within our MAX_AGGREGATION_MS time
-	 * - the resulting packet wont be bigger than
-	 *   MAX_AGGREGATION_BYTES
-	 */
-
-	if (time_before(send_time, forw_packet->send_time) &&
-	    time_after_eq(send_time + msecs_to_jiffies(MAX_AGGREGATION_MS),
-					forw_packet->send_time) &&
-	    (aggregated_bytes <= MAX_AGGREGATION_BYTES)) {
-
-		/**
-		 * check aggregation compatibility
-		 * -> direct link packets are broadcasted on
-		 *    their interface only
-		 * -> aggregate packet if the current packet is
-		 *    a "global" packet as well as the base
-		 *    packet
-		 */
-
-		primary_if = primary_if_get_selected(bat_priv);
-		if (!primary_if)
-			goto out;
-
-		/* packets without direct link flag and high TTL
-		 * are flooded through the net  */
-		if ((!directlink) &&
-		    (!(batman_packet->flags & DIRECTLINK)) &&
-		    (batman_packet->ttl != 1) &&
-
-		    /* own packets originating non-primary
-		     * interfaces leave only that interface */
-		    ((!forw_packet->own) ||
-		     (forw_packet->if_incoming == primary_if))) {
-			res = true;
-			goto out;
-		}
-
-		/* if the incoming packet is sent via this one
-		 * interface only - we still can aggregate */
-		if ((directlink) &&
-		    (new_batman_packet->ttl == 1) &&
-		    (forw_packet->if_incoming == if_incoming) &&
-
-		    /* packets from direct neighbors or
-		     * own secondary interface packets
-		     * (= secondary interface packets in general) */
-		    (batman_packet->flags & DIRECTLINK ||
-		     (forw_packet->own &&
-		      forw_packet->if_incoming != primary_if))) {
-			res = true;
-			goto out;
-		}
-	}
-
-out:
-	if (primary_if)
-		hardif_free_ref(primary_if);
-	return res;
-}
-
-/* create a new aggregated packet and add this packet to it */
-static void new_aggregated_packet(const unsigned char *packet_buff,
-				  int packet_len, unsigned long send_time,
-				  bool direct_link,
-				  struct hard_iface *if_incoming,
-				  int own_packet)
-{
-	struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
-	struct forw_packet *forw_packet_aggr;
-	unsigned char *skb_buff;
-
-	if (!atomic_inc_not_zero(&if_incoming->refcount))
-		return;
-
-	/* own packet should always be scheduled */
-	if (!own_packet) {
-		if (!atomic_dec_not_zero(&bat_priv->batman_queue_left)) {
-			bat_dbg(DBG_BATMAN, bat_priv,
-				"batman packet queue full\n");
-			goto out;
-		}
-	}
-
-	forw_packet_aggr = kmalloc(sizeof(*forw_packet_aggr), GFP_ATOMIC);
-	if (!forw_packet_aggr) {
-		if (!own_packet)
-			atomic_inc(&bat_priv->batman_queue_left);
-		goto out;
-	}
-
-	if ((atomic_read(&bat_priv->aggregated_ogms)) &&
-	    (packet_len < MAX_AGGREGATION_BYTES))
-		forw_packet_aggr->skb = dev_alloc_skb(MAX_AGGREGATION_BYTES +
-						      sizeof(struct ethhdr));
-	else
-		forw_packet_aggr->skb = dev_alloc_skb(packet_len +
-						      sizeof(struct ethhdr));
-
-	if (!forw_packet_aggr->skb) {
-		if (!own_packet)
-			atomic_inc(&bat_priv->batman_queue_left);
-		kfree(forw_packet_aggr);
-		goto out;
-	}
-	skb_reserve(forw_packet_aggr->skb, sizeof(struct ethhdr));
-
-	INIT_HLIST_NODE(&forw_packet_aggr->list);
-
-	skb_buff = skb_put(forw_packet_aggr->skb, packet_len);
-	forw_packet_aggr->packet_len = packet_len;
-	memcpy(skb_buff, packet_buff, packet_len);
-
-	forw_packet_aggr->own = own_packet;
-	forw_packet_aggr->if_incoming = if_incoming;
-	forw_packet_aggr->num_packets = 0;
-	forw_packet_aggr->direct_link_flags = NO_FLAGS;
-	forw_packet_aggr->send_time = send_time;
-
-	/* save packet direct link flag status */
-	if (direct_link)
-		forw_packet_aggr->direct_link_flags |= 1;
-
-	/* add new packet to packet list */
-	spin_lock_bh(&bat_priv->forw_bat_list_lock);
-	hlist_add_head(&forw_packet_aggr->list, &bat_priv->forw_bat_list);
-	spin_unlock_bh(&bat_priv->forw_bat_list_lock);
-
-	/* start timer for this packet */
-	INIT_DELAYED_WORK(&forw_packet_aggr->delayed_work,
-			  send_outstanding_bat_packet);
-	queue_delayed_work(bat_event_workqueue,
-			   &forw_packet_aggr->delayed_work,
-			   send_time - jiffies);
-
-	return;
-out:
-	hardif_free_ref(if_incoming);
-}
-
-/* aggregate a new packet into the existing aggregation */
-static void aggregate(struct forw_packet *forw_packet_aggr,
-		      const unsigned char *packet_buff, int packet_len,
-		      bool direct_link)
-{
-	unsigned char *skb_buff;
-
-	skb_buff = skb_put(forw_packet_aggr->skb, packet_len);
-	memcpy(skb_buff, packet_buff, packet_len);
-	forw_packet_aggr->packet_len += packet_len;
-	forw_packet_aggr->num_packets++;
-
-	/* save packet direct link flag status */
-	if (direct_link)
-		forw_packet_aggr->direct_link_flags |=
-			(1 << forw_packet_aggr->num_packets);
-}
-
-void add_bat_packet_to_list(struct bat_priv *bat_priv,
-			    unsigned char *packet_buff, int packet_len,
-			    struct hard_iface *if_incoming, int own_packet,
-			    unsigned long send_time)
-{
-	/**
-	 * _aggr -> pointer to the packet we want to aggregate with
-	 * _pos -> pointer to the position in the queue
-	 */
-	struct forw_packet *forw_packet_aggr = NULL, *forw_packet_pos = NULL;
-	struct hlist_node *tmp_node;
-	struct batman_packet *batman_packet =
-		(struct batman_packet *)packet_buff;
-	bool direct_link = batman_packet->flags & DIRECTLINK ? 1 : 0;
-
-	/* find position for the packet in the forward queue */
-	spin_lock_bh(&bat_priv->forw_bat_list_lock);
-	/* own packets are not to be aggregated */
-	if ((atomic_read(&bat_priv->aggregated_ogms)) && (!own_packet)) {
-		hlist_for_each_entry(forw_packet_pos, tmp_node,
-				     &bat_priv->forw_bat_list, list) {
-			if (can_aggregate_with(batman_packet,
-					       bat_priv,
-					       packet_len,
-					       send_time,
-					       direct_link,
-					       if_incoming,
-					       forw_packet_pos)) {
-				forw_packet_aggr = forw_packet_pos;
-				break;
-			}
-		}
-	}
-
-	/* nothing to aggregate with - either aggregation disabled or no
-	 * suitable aggregation packet found */
-	if (!forw_packet_aggr) {
-		/* the following section can run without the lock */
-		spin_unlock_bh(&bat_priv->forw_bat_list_lock);
-
-		/**
-		 * if we could not aggregate this packet with one of the others
-		 * we hold it back for a while, so that it might be aggregated
-		 * later on
-		 */
-		if ((!own_packet) &&
-		    (atomic_read(&bat_priv->aggregated_ogms)))
-			send_time += msecs_to_jiffies(MAX_AGGREGATION_MS);
-
-		new_aggregated_packet(packet_buff, packet_len,
-				      send_time, direct_link,
-				      if_incoming, own_packet);
-	} else {
-		aggregate(forw_packet_aggr,
-			  packet_buff, packet_len,
-			  direct_link);
-		spin_unlock_bh(&bat_priv->forw_bat_list_lock);
-	}
-}
-
-/* unpack the aggregated packets and process them one by one */
-void receive_aggr_bat_packet(const struct ethhdr *ethhdr,
-			     unsigned char *packet_buff, int packet_len,
-			     struct hard_iface *if_incoming)
-{
-	struct batman_packet *batman_packet;
-	int buff_pos = 0;
-	unsigned char *tt_buff;
-
-	batman_packet = (struct batman_packet *)packet_buff;
-
-	do {
-		/* network to host order for our 32bit seqno and the
-		   orig_interval */
-		batman_packet->seqno = ntohl(batman_packet->seqno);
-		batman_packet->tt_crc = ntohs(batman_packet->tt_crc);
-
-		tt_buff = packet_buff + buff_pos + BAT_PACKET_LEN;
-
-		receive_bat_packet(ethhdr, batman_packet, tt_buff, if_incoming);
-
-		buff_pos += BAT_PACKET_LEN +
-			tt_len(batman_packet->tt_num_changes);
-
-		batman_packet = (struct batman_packet *)
-			(packet_buff + buff_pos);
-	} while (aggregated_packet(buff_pos, packet_len,
-				   batman_packet->tt_num_changes));
-}
diff --git a/net/batman-adv/aggregation.h b/net/batman-adv/aggregation.h
deleted file mode 100644
index 216337bb841..00000000000
--- a/net/batman-adv/aggregation.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright (C) 2007-2011 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, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
- *
- */
-
-#ifndef _NET_BATMAN_ADV_AGGREGATION_H_
-#define _NET_BATMAN_ADV_AGGREGATION_H_
-
-#include "main.h"
-
-/* is there another aggregated packet here? */
-static inline int aggregated_packet(int buff_pos, int packet_len,
-				    int tt_num_changes)
-{
-	int next_buff_pos = buff_pos + BAT_PACKET_LEN + (tt_num_changes *
-						sizeof(struct tt_change));
-
-	return (next_buff_pos <= packet_len) &&
-		(next_buff_pos <= MAX_AGGREGATION_BYTES);
-}
-
-void add_bat_packet_to_list(struct bat_priv *bat_priv,
-			    unsigned char *packet_buff, int packet_len,
-			    struct hard_iface *if_incoming, int own_packet,
-			    unsigned long send_time);
-void receive_aggr_bat_packet(const struct ethhdr *ethhdr,
-			     unsigned char *packet_buff, int packet_len,
-			     struct hard_iface *if_incoming);
-
-#endif /* _NET_BATMAN_ADV_AGGREGATION_H_ */
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
new file mode 100644
index 00000000000..3512e251545
--- /dev/null
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -0,0 +1,1170 @@
+/*
+ * Copyright (C) 2007-2011 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ *
+ */
+
+#include "main.h"
+#include "bat_ogm.h"
+#include "translation-table.h"
+#include "ring_buffer.h"
+#include "originator.h"
+#include "routing.h"
+#include "gateway_common.h"
+#include "gateway_client.h"
+#include "hard-interface.h"
+#include "send.h"
+
+void bat_ogm_init(struct hard_iface *hard_iface)
+{
+	struct batman_ogm_packet *batman_ogm_packet;
+
+	hard_iface->packet_len = BATMAN_OGM_LEN;
+	hard_iface->packet_buff = kmalloc(hard_iface->packet_len, GFP_ATOMIC);
+
+	batman_ogm_packet = (struct batman_ogm_packet *)hard_iface->packet_buff;
+	batman_ogm_packet->packet_type = BAT_OGM;
+	batman_ogm_packet->version = COMPAT_VERSION;
+	batman_ogm_packet->flags = NO_FLAGS;
+	batman_ogm_packet->ttl = 2;
+	batman_ogm_packet->tq = TQ_MAX_VALUE;
+	batman_ogm_packet->tt_num_changes = 0;
+	batman_ogm_packet->ttvn = 0;
+}
+
+void bat_ogm_init_primary(struct hard_iface *hard_iface)
+{
+	struct batman_ogm_packet *batman_ogm_packet;
+
+	batman_ogm_packet = (struct batman_ogm_packet *)hard_iface->packet_buff;
+	batman_ogm_packet->flags = PRIMARIES_FIRST_HOP;
+	batman_ogm_packet->ttl = TTL;
+}
+
+void bat_ogm_update_mac(struct hard_iface *hard_iface)
+{
+	struct batman_ogm_packet *batman_ogm_packet;
+
+	batman_ogm_packet = (struct batman_ogm_packet *)hard_iface->packet_buff;
+	memcpy(batman_ogm_packet->orig,
+	       hard_iface->net_dev->dev_addr, ETH_ALEN);
+	memcpy(batman_ogm_packet->prev_sender,
+	       hard_iface->net_dev->dev_addr, ETH_ALEN);
+}
+
+/* when do we schedule our own ogm to be sent */
+static unsigned long bat_ogm_emit_send_time(const struct bat_priv *bat_priv)
+{
+	return jiffies + msecs_to_jiffies(
+		   atomic_read(&bat_priv->orig_interval) -
+		   JITTER + (random32() % 2*JITTER));
+}
+
+/* when do we schedule a ogm packet to be sent */
+static unsigned long bat_ogm_fwd_send_time(void)
+{
+	return jiffies + msecs_to_jiffies(random32() % (JITTER/2));
+}
+
+/* apply hop penalty for a normal link */
+static uint8_t hop_penalty(uint8_t tq, const struct bat_priv *bat_priv)
+{
+	int hop_penalty = atomic_read(&bat_priv->hop_penalty);
+	return (tq * (TQ_MAX_VALUE - hop_penalty)) / (TQ_MAX_VALUE);
+}
+
+/* is there another aggregated packet here? */
+static int bat_ogm_aggr_packet(int buff_pos, int packet_len,
+			       int tt_num_changes)
+{
+	int next_buff_pos = buff_pos + BATMAN_OGM_LEN + tt_len(tt_num_changes);
+
+	return (next_buff_pos <= packet_len) &&
+		(next_buff_pos <= MAX_AGGREGATION_BYTES);
+}
+
+/* send a batman ogm to a given interface */
+static void bat_ogm_send_to_if(struct forw_packet *forw_packet,
+			       struct hard_iface *hard_iface)
+{
+	struct bat_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
+	char *fwd_str;
+	uint8_t packet_num;
+	int16_t buff_pos;
+	struct batman_ogm_packet *batman_ogm_packet;
+	struct sk_buff *skb;
+
+	if (hard_iface->if_status != IF_ACTIVE)
+		return;
+
+	packet_num = 0;
+	buff_pos = 0;
+	batman_ogm_packet = (struct batman_ogm_packet *)forw_packet->skb->data;
+
+	/* adjust all flags and log packets */
+	while (bat_ogm_aggr_packet(buff_pos, forw_packet->packet_len,
+				   batman_ogm_packet->tt_num_changes)) {
+
+		/* we might have aggregated direct link packets with an
+		 * ordinary base packet */
+		if ((forw_packet->direct_link_flags & (1 << packet_num)) &&
+		    (forw_packet->if_incoming == hard_iface))
+			batman_ogm_packet->flags |= DIRECTLINK;
+		else
+			batman_ogm_packet->flags &= ~DIRECTLINK;
+
+		fwd_str = (packet_num > 0 ? "Forwarding" : (forw_packet->own ?
+							    "Sending own" :
+							    "Forwarding"));
+		bat_dbg(DBG_BATMAN, bat_priv,
+			"%s %spacket (originator %pM, seqno %d, TQ %d, TTL %d,"
+			" IDF %s, ttvn %d) on interface %s [%pM]\n",
+			fwd_str, (packet_num > 0 ? "aggregated " : ""),
+			batman_ogm_packet->orig,
+			ntohl(batman_ogm_packet->seqno),
+			batman_ogm_packet->tq, batman_ogm_packet->ttl,
+			(batman_ogm_packet->flags & DIRECTLINK ?
+			 "on" : "off"),
+			batman_ogm_packet->ttvn, hard_iface->net_dev->name,
+			hard_iface->net_dev->dev_addr);
+
+		buff_pos += BATMAN_OGM_LEN +
+				tt_len(batman_ogm_packet->tt_num_changes);
+		packet_num++;
+		batman_ogm_packet = (struct batman_ogm_packet *)
+					(forw_packet->skb->data + buff_pos);
+	}
+
+	/* create clone because function is called more than once */
+	skb = skb_clone(forw_packet->skb, GFP_ATOMIC);
+	if (skb)
+		send_skb_packet(skb, hard_iface, broadcast_addr);
+}
+
+/* send a batman ogm packet */
+void bat_ogm_emit(struct forw_packet *forw_packet)
+{
+	struct hard_iface *hard_iface;
+	struct net_device *soft_iface;
+	struct bat_priv *bat_priv;
+	struct hard_iface *primary_if = NULL;
+	struct batman_ogm_packet *batman_ogm_packet;
+	unsigned char directlink;
+
+	batman_ogm_packet = (struct batman_ogm_packet *)
+						(forw_packet->skb->data);
+	directlink = (batman_ogm_packet->flags & DIRECTLINK ? 1 : 0);
+
+	if (!forw_packet->if_incoming) {
+		pr_err("Error - can't forward packet: incoming iface not "
+		       "specified\n");
+		goto out;
+	}
+
+	soft_iface = forw_packet->if_incoming->soft_iface;
+	bat_priv = netdev_priv(soft_iface);
+
+	if (forw_packet->if_incoming->if_status != IF_ACTIVE)
+		goto out;
+
+	primary_if = primary_if_get_selected(bat_priv);
+	if (!primary_if)
+		goto out;
+
+	/* multihomed peer assumed */
+	/* non-primary OGMs are only broadcasted on their interface */
+	if ((directlink && (batman_ogm_packet->ttl == 1)) ||
+	    (forw_packet->own && (forw_packet->if_incoming != primary_if))) {
+
+		/* FIXME: what about aggregated packets ? */
+		bat_dbg(DBG_BATMAN, bat_priv,
+			"%s packet (originator %pM, seqno %d, TTL %d) "
+			"on interface %s [%pM]\n",
+			(forw_packet->own ? "Sending own" : "Forwarding"),
+			batman_ogm_packet->orig,
+			ntohl(batman_ogm_packet->seqno),
+			batman_ogm_packet->ttl,
+			forw_packet->if_incoming->net_dev->name,
+			forw_packet->if_incoming->net_dev->dev_addr);
+
+		/* skb is only used once and than forw_packet is free'd */
+		send_skb_packet(forw_packet->skb, forw_packet->if_incoming,
+				broadcast_addr);
+		forw_packet->skb = NULL;
+
+		goto out;
+	}
+
+	/* broadcast on every interface */
+	rcu_read_lock();
+	list_for_each_entry_rcu(hard_iface, &hardif_list, list) {
+		if (hard_iface->soft_iface != soft_iface)
+			continue;
+
+		bat_ogm_send_to_if(forw_packet, hard_iface);
+	}
+	rcu_read_unlock();
+
+out:
+	if (primary_if)
+		hardif_free_ref(primary_if);
+}
+
+/* return true if new_packet can be aggregated with forw_packet */
+static bool bat_ogm_can_aggregate(const struct batman_ogm_packet
+							*new_batman_ogm_packet,
+				  struct bat_priv *bat_priv,
+				  int packet_len, unsigned long send_time,
+				  bool directlink,
+				  const struct hard_iface *if_incoming,
+				  const struct forw_packet *forw_packet)
+{
+	struct batman_ogm_packet *batman_ogm_packet;
+	int aggregated_bytes = forw_packet->packet_len + packet_len;
+	struct hard_iface *primary_if = NULL;
+	bool res = false;
+
+	batman_ogm_packet = (struct batman_ogm_packet *)forw_packet->skb->data;
+
+	/**
+	 * we can aggregate the current packet to this aggregated packet
+	 * if:
+	 *
+	 * - the send time is within our MAX_AGGREGATION_MS time
+	 * - the resulting packet wont be bigger than
+	 *   MAX_AGGREGATION_BYTES
+	 */
+
+	if (time_before(send_time, forw_packet->send_time) &&
+	    time_after_eq(send_time + msecs_to_jiffies(MAX_AGGREGATION_MS),
+					forw_packet->send_time) &&
+	    (aggregated_bytes <= MAX_AGGREGATION_BYTES)) {
+
+		/**
+		 * check aggregation compatibility
+		 * -> direct link packets are broadcasted on
+		 *    their interface only
+		 * -> aggregate packet if the current packet is
+		 *    a "global" packet as well as the base
+		 *    packet
+		 */
+
+		primary_if = primary_if_get_selected(bat_priv);
+		if (!primary_if)
+			goto out;
+
+		/* packets without direct link flag and high TTL
+		 * are flooded through the net  */
+		if ((!directlink) &&
+		    (!(batman_ogm_packet->flags & DIRECTLINK)) &&
+		    (batman_ogm_packet->ttl != 1) &&
+
+		    /* own packets originating non-primary
+		     * interfaces leave only that interface */
+		    ((!forw_packet->own) ||
+		     (forw_packet->if_incoming == primary_if))) {
+			res = true;
+			goto out;
+		}
+
+		/* if the incoming packet is sent via this one
+		 * interface only - we still can aggregate */
+		if ((directlink) &&
+		    (new_batman_ogm_packet->ttl == 1) &&
+		    (forw_packet->if_incoming == if_incoming) &&
+
+		    /* packets from direct neighbors or
+		     * own secondary interface packets
+		     * (= secondary interface packets in general) */
+		    (batman_ogm_packet->flags & DIRECTLINK ||
+		     (forw_packet->own &&
+		      forw_packet->if_incoming != primary_if))) {
+			res = true;
+			goto out;
+		}
+	}
+
+out:
+	if (primary_if)
+		hardif_free_ref(primary_if);
+	return res;
+}
+
+/* create a new aggregated packet and add this packet to it */
+static void bat_ogm_aggregate_new(const unsigned char *packet_buff,
+				  int packet_len, unsigned long send_time,
+				  bool direct_link,
+				  struct hard_iface *if_incoming,
+				  int own_packet)
+{
+	struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
+	struct forw_packet *forw_packet_aggr;
+	unsigned char *skb_buff;
+
+	if (!atomic_inc_not_zero(&if_incoming->refcount))
+		return;
+
+	/* own packet should always be scheduled */
+	if (!own_packet) {
+		if (!atomic_dec_not_zero(&bat_priv->batman_queue_left)) {
+			bat_dbg(DBG_BATMAN, bat_priv,
+				"batman packet queue full\n");
+			goto out;
+		}
+	}
+
+	forw_packet_aggr = kmalloc(sizeof(*forw_packet_aggr), GFP_ATOMIC);
+	if (!forw_packet_aggr) {
+		if (!own_packet)
+			atomic_inc(&bat_priv->batman_queue_left);
+		goto out;
+	}
+
+	if ((atomic_read(&bat_priv->aggregated_ogms)) &&
+	    (packet_len < MAX_AGGREGATION_BYTES))
+		forw_packet_aggr->skb = dev_alloc_skb(MAX_AGGREGATION_BYTES +
+						      sizeof(struct ethhdr));
+	else
+		forw_packet_aggr->skb = dev_alloc_skb(packet_len +
+						      sizeof(struct ethhdr));
+
+	if (!forw_packet_aggr->skb) {
+		if (!own_packet)
+			atomic_inc(&bat_priv->batman_queue_left);
+		kfree(forw_packet_aggr);
+		goto out;
+	}
+	skb_reserve(forw_packet_aggr->skb, sizeof(struct ethhdr));
+
+	INIT_HLIST_NODE(&forw_packet_aggr->list);
+
+	skb_buff = skb_put(forw_packet_aggr->skb, packet_len);
+	forw_packet_aggr->packet_len = packet_len;
+	memcpy(skb_buff, packet_buff, packet_len);
+
+	forw_packet_aggr->own = own_packet;
+	forw_packet_aggr->if_incoming = if_incoming;
+	forw_packet_aggr->num_packets = 0;
+	forw_packet_aggr->direct_link_flags = NO_FLAGS;
+	forw_packet_aggr->send_time = send_time;
+
+	/* save packet direct link flag status */
+	if (direct_link)
+		forw_packet_aggr->direct_link_flags |= 1;
+
+	/* add new packet to packet list */
+	spin_lock_bh(&bat_priv->forw_bat_list_lock);
+	hlist_add_head(&forw_packet_aggr->list, &bat_priv->forw_bat_list);
+	spin_unlock_bh(&bat_priv->forw_bat_list_lock);
+
+	/* start timer for this packet */
+	INIT_DELAYED_WORK(&forw_packet_aggr->delayed_work,
+			  send_outstanding_bat_ogm_packet);
+	queue_delayed_work(bat_event_workqueue,
+			   &forw_packet_aggr->delayed_work,
+			   send_time - jiffies);
+
+	return;
+out:
+	hardif_free_ref(if_incoming);
+}
+
+/* aggregate a new packet into the existing ogm packet */
+static void bat_ogm_aggregate(struct forw_packet *forw_packet_aggr,
+			      const unsigned char *packet_buff,
+			      int packet_len, bool direct_link)
+{
+	unsigned char *skb_buff;
+
+	skb_buff = skb_put(forw_packet_aggr->skb, packet_len);
+	memcpy(skb_buff, packet_buff, packet_len);
+	forw_packet_aggr->packet_len += packet_len;
+	forw_packet_aggr->num_packets++;
+
+	/* save packet direct link flag status */
+	if (direct_link)
+		forw_packet_aggr->direct_link_flags |=
+			(1 << forw_packet_aggr->num_packets);
+}
+
+static void bat_ogm_queue_add(struct bat_priv *bat_priv,
+			      unsigned char *packet_buff,
+			      int packet_len, struct hard_iface *if_incoming,
+			      int own_packet, unsigned long send_time)
+{
+	/**
+	 * _aggr -> pointer to the packet we want to aggregate with
+	 * _pos -> pointer to the position in the queue
+	 */
+	struct forw_packet *forw_packet_aggr = NULL, *forw_packet_pos = NULL;
+	struct hlist_node *tmp_node;
+	struct batman_ogm_packet *batman_ogm_packet;
+	bool direct_link;
+
+	batman_ogm_packet = (struct batman_ogm_packet *)packet_buff;
+	direct_link = batman_ogm_packet->flags & DIRECTLINK ? 1 : 0;
+
+	/* find position for the packet in the forward queue */
+	spin_lock_bh(&bat_priv->forw_bat_list_lock);
+	/* own packets are not to be aggregated */
+	if ((atomic_read(&bat_priv->aggregated_ogms)) && (!own_packet)) {
+		hlist_for_each_entry(forw_packet_pos, tmp_node,
+				     &bat_priv->forw_bat_list, list) {
+			if (bat_ogm_can_aggregate(batman_ogm_packet,
+						  bat_priv, packet_len,
+						  send_time, direct_link,
+						  if_incoming,
+						  forw_packet_pos)) {
+				forw_packet_aggr = forw_packet_pos;
+				break;
+			}
+		}
+	}
+
+	/* nothing to aggregate with - either aggregation disabled or no
+	 * suitable aggregation packet found */
+	if (!forw_packet_aggr) {
+		/* the following section can run without the lock */
+		spin_unlock_bh(&bat_priv->forw_bat_list_lock);
+
+		/**
+		 * if we could not aggregate this packet with one of the others
+		 * we hold it back for a while, so that it might be aggregated
+		 * later on
+		 */
+		if ((!own_packet) &&
+		    (atomic_read(&bat_priv->aggregated_ogms)))
+			send_time += msecs_to_jiffies(MAX_AGGREGATION_MS);
+
+		bat_ogm_aggregate_new(packet_buff, packet_len,
+				      send_time, direct_link,
+				      if_incoming, own_packet);
+	} else {
+		bat_ogm_aggregate(forw_packet_aggr, packet_buff, packet_len,
+				  direct_link);
+		spin_unlock_bh(&bat_priv->forw_bat_list_lock);
+	}
+}
+
+static void bat_ogm_forward(struct orig_node *orig_node,
+			    const struct ethhdr *ethhdr,
+			    struct batman_ogm_packet *batman_ogm_packet,
+			    int directlink, struct hard_iface *if_incoming)
+{
+	struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
+	struct neigh_node *router;
+	uint8_t in_tq, in_ttl, tq_avg = 0;
+	uint8_t tt_num_changes;
+
+	if (batman_ogm_packet->ttl <= 1) {
+		bat_dbg(DBG_BATMAN, bat_priv, "ttl exceeded\n");
+		return;
+	}
+
+	router = orig_node_get_router(orig_node);
+
+	in_tq = batman_ogm_packet->tq;
+	in_ttl = batman_ogm_packet->ttl;
+	tt_num_changes = batman_ogm_packet->tt_num_changes;
+
+	batman_ogm_packet->ttl--;
+	memcpy(batman_ogm_packet->prev_sender, ethhdr->h_source, ETH_ALEN);
+
+	/* rebroadcast tq of our best ranking neighbor to ensure the rebroadcast
+	 * of our best tq value */
+	if (router && router->tq_avg != 0) {
+
+		/* rebroadcast ogm of best ranking neighbor as is */
+		if (!compare_eth(router->addr, ethhdr->h_source)) {
+			batman_ogm_packet->tq = router->tq_avg;
+
+			if (router->last_ttl)
+				batman_ogm_packet->ttl = router->last_ttl - 1;
+		}
+
+		tq_avg = router->tq_avg;
+	}
+
+	if (router)
+		neigh_node_free_ref(router);
+
+	/* apply hop penalty */
+	batman_ogm_packet->tq = hop_penalty(batman_ogm_packet->tq, bat_priv);
+
+	bat_dbg(DBG_BATMAN, bat_priv,
+		"Forwarding packet: tq_orig: %i, tq_avg: %i, "
+		"tq_forw: %i, ttl_orig: %i, ttl_forw: %i\n",
+		in_tq, tq_avg, batman_ogm_packet->tq, in_ttl - 1,
+		batman_ogm_packet->ttl);
+
+	batman_ogm_packet->seqno = htonl(batman_ogm_packet->seqno);
+	batman_ogm_packet->tt_crc = htons(batman_ogm_packet->tt_crc);
+
+	/* switch of primaries first hop flag when forwarding */
+	batman_ogm_packet->flags &= ~PRIMARIES_FIRST_HOP;
+	if (directlink)
+		batman_ogm_packet->flags |= DIRECTLINK;
+	else
+		batman_ogm_packet->flags &= ~DIRECTLINK;
+
+	bat_ogm_queue_add(bat_priv, (unsigned char *)batman_ogm_packet,
+			  BATMAN_OGM_LEN + tt_len(tt_num_changes),
+			  if_incoming, 0, bat_ogm_fwd_send_time());
+}
+
+void bat_ogm_schedule(struct hard_iface *hard_iface, int tt_num_changes)
+{
+	struct bat_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
+	struct batman_ogm_packet *batman_ogm_packet;
+	struct hard_iface *primary_if;
+	int vis_server;
+
+	vis_server = atomic_read(&bat_priv->vis_mode);
+	primary_if = primary_if_get_selected(bat_priv);
+
+	batman_ogm_packet = (struct batman_ogm_packet *)hard_iface->packet_buff;
+
+	/* change sequence number to network order */
+	batman_ogm_packet->seqno =
+			htonl((uint32_t)atomic_read(&hard_iface->seqno));
+
+	batman_ogm_packet->ttvn = atomic_read(&bat_priv->ttvn);
+	batman_ogm_packet->tt_crc = htons((uint16_t)
+						atomic_read(&bat_priv->tt_crc));
+	if (tt_num_changes >= 0)
+		batman_ogm_packet->tt_num_changes = tt_num_changes;
+
+	if (vis_server == VIS_TYPE_SERVER_SYNC)
+		batman_ogm_packet->flags |= VIS_SERVER;
+	else
+		batman_ogm_packet->flags &= ~VIS_SERVER;
+
+	if ((hard_iface == primary_if) &&
+	    (atomic_read(&bat_priv->gw_mode) == GW_MODE_SERVER))
+		batman_ogm_packet->gw_flags =
+				(uint8_t)atomic_read(&bat_priv->gw_bandwidth);
+	else
+		batman_ogm_packet->gw_flags = NO_FLAGS;
+
+	atomic_inc(&hard_iface->seqno);
+
+	slide_own_bcast_window(hard_iface);
+	bat_ogm_queue_add(bat_priv, hard_iface->packet_buff,
+			  hard_iface->packet_len, hard_iface, 1,
+			  bat_ogm_emit_send_time(bat_priv));
+
+	if (primary_if)
+		hardif_free_ref(primary_if);
+}
+
+static void bat_ogm_orig_update(struct bat_priv *bat_priv,
+				struct orig_node *orig_node,
+				const struct ethhdr *ethhdr,
+				const struct batman_ogm_packet
+							*batman_ogm_packet,
+				struct hard_iface *if_incoming,
+				const unsigned char *tt_buff, int is_duplicate)
+{
+	struct neigh_node *neigh_node = NULL, *tmp_neigh_node = NULL;
+	struct neigh_node *router = NULL;
+	struct orig_node *orig_node_tmp;
+	struct hlist_node *node;
+	uint8_t bcast_own_sum_orig, bcast_own_sum_neigh;
+
+	bat_dbg(DBG_BATMAN, bat_priv, "update_originator(): "
+		"Searching and updating originator entry of received packet\n");
+
+	rcu_read_lock();
+	hlist_for_each_entry_rcu(tmp_neigh_node, node,
+				 &orig_node->neigh_list, list) {
+		if (compare_eth(tmp_neigh_node->addr, ethhdr->h_source) &&
+		    (tmp_neigh_node->if_incoming == if_incoming) &&
+		     atomic_inc_not_zero(&tmp_neigh_node->refcount)) {
+			if (neigh_node)
+				neigh_node_free_ref(neigh_node);
+			neigh_node = tmp_neigh_node;
+			continue;
+		}
+
+		if (is_duplicate)
+			continue;
+
+		spin_lock_bh(&tmp_neigh_node->tq_lock);
+		ring_buffer_set(tmp_neigh_node->tq_recv,
+				&tmp_neigh_node->tq_index, 0);
+		tmp_neigh_node->tq_avg =
+			ring_buffer_avg(tmp_neigh_node->tq_recv);
+		spin_unlock_bh(&tmp_neigh_node->tq_lock);
+	}
+
+	if (!neigh_node) {
+		struct orig_node *orig_tmp;
+
+		orig_tmp = get_orig_node(bat_priv, ethhdr->h_source);
+		if (!orig_tmp)
+			goto unlock;
+
+		neigh_node = create_neighbor(orig_node, orig_tmp,
+					     ethhdr->h_source, if_incoming);
+
+		orig_node_free_ref(orig_tmp);
+		if (!neigh_node)
+			goto unlock;
+	} else
+		bat_dbg(DBG_BATMAN, bat_priv,
+			"Updating existing last-hop neighbor of originator\n");
+
+	rcu_read_unlock();
+
+	orig_node->flags = batman_ogm_packet->flags;
+	neigh_node->last_valid = jiffies;
+
+	spin_lock_bh(&neigh_node->tq_lock);
+	ring_buffer_set(neigh_node->tq_recv,
+			&neigh_node->tq_index,
+			batman_ogm_packet->tq);
+	neigh_node->tq_avg = ring_buffer_avg(neigh_node->tq_recv);
+	spin_unlock_bh(&neigh_node->tq_lock);
+
+	if (!is_duplicate) {
+		orig_node->last_ttl = batman_ogm_packet->ttl;
+		neigh_node->last_ttl = batman_ogm_packet->ttl;
+	}
+
+	bonding_candidate_add(orig_node, neigh_node);
+
+	/* if this neighbor already is our next hop there is nothing
+	 * to change */
+	router = orig_node_get_router(orig_node);
+	if (router == neigh_node)
+		goto update_tt;
+
+	/* if this neighbor does not offer a better TQ we won't consider it */
+	if (router && (router->tq_avg > neigh_node->tq_avg))
+		goto update_tt;
+
+	/* if the TQ is the same and the link not more symmetric we
+	 * won't consider it either */
+	if (router && (neigh_node->tq_avg == router->tq_avg)) {
+		orig_node_tmp = router->orig_node;
+		spin_lock_bh(&orig_node_tmp->ogm_cnt_lock);
+		bcast_own_sum_orig =
+			orig_node_tmp->bcast_own_sum[if_incoming->if_num];
+		spin_unlock_bh(&orig_node_tmp->ogm_cnt_lock);
+
+		orig_node_tmp = neigh_node->orig_node;
+		spin_lock_bh(&orig_node_tmp->ogm_cnt_lock);
+		bcast_own_sum_neigh =
+			orig_node_tmp->bcast_own_sum[if_incoming->if_num];
+		spin_unlock_bh(&orig_node_tmp->ogm_cnt_lock);
+
+		if (bcast_own_sum_orig >= bcast_own_sum_neigh)
+			goto update_tt;
+	}
+
+	update_route(bat_priv, orig_node, neigh_node);
+
+update_tt:
+	/* I have to check for transtable changes only if the OGM has been
+	 * sent through a primary interface */
+	if (((batman_ogm_packet->orig != ethhdr->h_source) &&
+	     (batman_ogm_packet->ttl > 2)) ||
+	    (batman_ogm_packet->flags & PRIMARIES_FIRST_HOP))
+		tt_update_orig(bat_priv, orig_node, tt_buff,
+			       batman_ogm_packet->tt_num_changes,
+			       batman_ogm_packet->ttvn,
+			       batman_ogm_packet->tt_crc);
+
+	if (orig_node->gw_flags != batman_ogm_packet->gw_flags)
+		gw_node_update(bat_priv, orig_node,
+			       batman_ogm_packet->gw_flags);
+
+	orig_node->gw_flags = batman_ogm_packet->gw_flags;
+
+	/* restart gateway selection if fast or late switching was enabled */
+	if ((orig_node->gw_flags) &&
+	    (atomic_read(&bat_priv->gw_mode) == GW_MODE_CLIENT) &&
+	    (atomic_read(&bat_priv->gw_sel_class) > 2))
+		gw_check_election(bat_priv, orig_node);
+
+	goto out;
+
+unlock:
+	rcu_read_unlock();
+out:
+	if (neigh_node)
+		neigh_node_free_ref(neigh_node);
+	if (router)
+		neigh_node_free_ref(router);
+}
+
+static int bat_ogm_calc_tq(struct orig_node *orig_node,
+			   struct orig_node *orig_neigh_node,
+			   struct batman_ogm_packet *batman_ogm_packet,
+			   struct hard_iface *if_incoming)
+{
+	struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
+	struct neigh_node *neigh_node = NULL, *tmp_neigh_node;
+	struct hlist_node *node;
+	uint8_t total_count;
+	uint8_t orig_eq_count, neigh_rq_count, tq_own;
+	int tq_asym_penalty, ret = 0;
+
+	/* find corresponding one hop neighbor */
+	rcu_read_lock();
+	hlist_for_each_entry_rcu(tmp_neigh_node, node,
+				 &orig_neigh_node->neigh_list, list) {
+
+		if (!compare_eth(tmp_neigh_node->addr, orig_neigh_node->orig))
+			continue;
+
+		if (tmp_neigh_node->if_incoming != if_incoming)
+			continue;
+
+		if (!atomic_inc_not_zero(&tmp_neigh_node->refcount))
+			continue;
+
+		neigh_node = tmp_neigh_node;
+		break;
+	}
+	rcu_read_unlock();
+
+	if (!neigh_node)
+		neigh_node = create_neighbor(orig_neigh_node,
+					     orig_neigh_node,
+					     orig_neigh_node->orig,
+					     if_incoming);
+
+	if (!neigh_node)
+		goto out;
+
+	/* if orig_node is direct neighbor update neigh_node last_valid */
+	if (orig_node == orig_neigh_node)
+		neigh_node->last_valid = jiffies;
+
+	orig_node->last_valid = jiffies;
+
+	/* find packet count of corresponding one hop neighbor */
+	spin_lock_bh(&orig_node->ogm_cnt_lock);
+	orig_eq_count = orig_neigh_node->bcast_own_sum[if_incoming->if_num];
+	neigh_rq_count = neigh_node->real_packet_count;
+	spin_unlock_bh(&orig_node->ogm_cnt_lock);
+
+	/* pay attention to not get a value bigger than 100 % */
+	total_count = (orig_eq_count > neigh_rq_count ?
+		       neigh_rq_count : orig_eq_count);
+
+	/* if we have too few packets (too less data) we set tq_own to zero */
+	/* if we receive too few packets it is not considered bidirectional */
+	if ((total_count < TQ_LOCAL_BIDRECT_SEND_MINIMUM) ||
+	    (neigh_rq_count < TQ_LOCAL_BIDRECT_RECV_MINIMUM))
+		tq_own = 0;
+	else
+		/* neigh_node->real_packet_count is never zero as we
+		 * only purge old information when getting new
+		 * information */
+		tq_own = (TQ_MAX_VALUE * total_count) /	neigh_rq_count;
+
+	/*
+	 * 1 - ((1-x) ** 3), normalized to TQ_MAX_VALUE this does
+	 * affect the nearly-symmetric links only a little, but
+	 * punishes asymmetric links more.  This will give a value
+	 * between 0 and TQ_MAX_VALUE
+	 */
+	tq_asym_penalty = TQ_MAX_VALUE - (TQ_MAX_VALUE *
+				(TQ_LOCAL_WINDOW_SIZE - neigh_rq_count) *
+				(TQ_LOCAL_WINDOW_SIZE - neigh_rq_count) *
+				(TQ_LOCAL_WINDOW_SIZE - neigh_rq_count)) /
+					(TQ_LOCAL_WINDOW_SIZE *
+					 TQ_LOCAL_WINDOW_SIZE *
+					 TQ_LOCAL_WINDOW_SIZE);
+
+	batman_ogm_packet->tq = ((batman_ogm_packet->tq * tq_own
+							* tq_asym_penalty) /
+						(TQ_MAX_VALUE * TQ_MAX_VALUE));
+
+	bat_dbg(DBG_BATMAN, bat_priv,
+		"bidirectional: "
+		"orig = %-15pM neigh = %-15pM => own_bcast = %2i, "
+		"real recv = %2i, local tq: %3i, asym_penalty: %3i, "
+		"total tq: %3i\n",
+		orig_node->orig, orig_neigh_node->orig, total_count,
+		neigh_rq_count, tq_own,	tq_asym_penalty, batman_ogm_packet->tq);
+
+	/* if link has the minimum required transmission quality
+	 * consider it bidirectional */
+	if (batman_ogm_packet->tq >= TQ_TOTAL_BIDRECT_LIMIT)
+		ret = 1;
+
+out:
+	if (neigh_node)
+		neigh_node_free_ref(neigh_node);
+	return ret;
+}
+
+/* processes a batman packet for all interfaces, adjusts the sequence number and
+ * finds out whether it is a duplicate.
+ * returns:
+ *   1 the packet is a duplicate
+ *   0 the packet has not yet been received
+ *  -1 the packet is old and has been received while the seqno window
+ *     was protected. Caller should drop it.
+ */
+static int bat_ogm_update_seqnos(const struct ethhdr *ethhdr,
+				 const struct batman_ogm_packet
+							*batman_ogm_packet,
+				 const struct hard_iface *if_incoming)
+{
+	struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
+	struct orig_node *orig_node;
+	struct neigh_node *tmp_neigh_node;
+	struct hlist_node *node;
+	int is_duplicate = 0;
+	int32_t seq_diff;
+	int need_update = 0;
+	int set_mark, ret = -1;
+
+	orig_node = get_orig_node(bat_priv, batman_ogm_packet->orig);
+	if (!orig_node)
+		return 0;
+
+	spin_lock_bh(&orig_node->ogm_cnt_lock);
+	seq_diff = batman_ogm_packet->seqno - orig_node->last_real_seqno;
+
+	/* signalize caller that the packet is to be dropped. */
+	if (window_protected(bat_priv, seq_diff,
+			     &orig_node->batman_seqno_reset))
+		goto out;
+
+	rcu_read_lock();
+	hlist_for_each_entry_rcu(tmp_neigh_node, node,
+				 &orig_node->neigh_list, list) {
+
+		is_duplicate |= get_bit_status(tmp_neigh_node->real_bits,
+					       orig_node->last_real_seqno,
+					       batman_ogm_packet->seqno);
+
+		if (compare_eth(tmp_neigh_node->addr, ethhdr->h_source) &&
+		    (tmp_neigh_node->if_incoming == if_incoming))
+			set_mark = 1;
+		else
+			set_mark = 0;
+
+		/* if the window moved, set the update flag. */
+		need_update |= bit_get_packet(bat_priv,
+					      tmp_neigh_node->real_bits,
+					      seq_diff, set_mark);
+
+		tmp_neigh_node->real_packet_count =
+			bit_packet_count(tmp_neigh_node->real_bits);
+	}
+	rcu_read_unlock();
+
+	if (need_update) {
+		bat_dbg(DBG_BATMAN, bat_priv,
+			"updating last_seqno: old %d, new %d\n",
+			orig_node->last_real_seqno, batman_ogm_packet->seqno);
+		orig_node->last_real_seqno = batman_ogm_packet->seqno;
+	}
+
+	ret = is_duplicate;
+
+out:
+	spin_unlock_bh(&orig_node->ogm_cnt_lock);
+	orig_node_free_ref(orig_node);
+	return ret;
+}
+
+static void bat_ogm_process(const struct ethhdr *ethhdr,
+			    struct batman_ogm_packet *batman_ogm_packet,
+			    const unsigned char *tt_buff,
+			    struct hard_iface *if_incoming)
+{
+	struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
+	struct hard_iface *hard_iface;
+	struct orig_node *orig_neigh_node, *orig_node;
+	struct neigh_node *router = NULL, *router_router = NULL;
+	struct neigh_node *orig_neigh_router = NULL;
+	int has_directlink_flag;
+	int is_my_addr = 0, is_my_orig = 0, is_my_oldorig = 0;
+	int is_broadcast = 0, is_bidirectional, is_single_hop_neigh;
+	int is_duplicate;
+	uint32_t if_incoming_seqno;
+
+	/* Silently drop when the batman packet is actually not a
+	 * correct packet.
+	 *
+	 * This might happen if a packet is padded (e.g. Ethernet has a
+	 * minimum frame length of 64 byte) and the aggregation interprets
+	 * it as an additional length.
+	 *
+	 * TODO: A more sane solution would be to have a bit in the
+	 * batman_ogm_packet to detect whether the packet is the last
+	 * packet in an aggregation.  Here we expect that the padding
+	 * is always zero (or not 0x01)
+	 */
+	if (batman_ogm_packet->packet_type != BAT_OGM)
+		return;
+
+	/* could be changed by schedule_own_packet() */
+	if_incoming_seqno = atomic_read(&if_incoming->seqno);
+
+	has_directlink_flag = (batman_ogm_packet->flags & DIRECTLINK ? 1 : 0);
+
+	is_single_hop_neigh = (compare_eth(ethhdr->h_source,
+					   batman_ogm_packet->orig) ? 1 : 0);
+
+	bat_dbg(DBG_BATMAN, bat_priv,
+		"Received BATMAN packet via NB: %pM, IF: %s [%pM] "
+		"(from OG: %pM, via prev OG: %pM, seqno %d, ttvn %u, "
+		"crc %u, changes %u, td %d, TTL %d, V %d, IDF %d)\n",
+		ethhdr->h_source, if_incoming->net_dev->name,
+		if_incoming->net_dev->dev_addr, batman_ogm_packet->orig,
+		batman_ogm_packet->prev_sender, batman_ogm_packet->seqno,
+		batman_ogm_packet->ttvn, batman_ogm_packet->tt_crc,
+		batman_ogm_packet->tt_num_changes, batman_ogm_packet->tq,
+		batman_ogm_packet->ttl, batman_ogm_packet->version,
+		has_directlink_flag);
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(hard_iface, &hardif_list, list) {
+		if (hard_iface->if_status != IF_ACTIVE)
+			continue;
+
+		if (hard_iface->soft_iface != if_incoming->soft_iface)
+			continue;
+
+		if (compare_eth(ethhdr->h_source,
+				hard_iface->net_dev->dev_addr))
+			is_my_addr = 1;
+
+		if (compare_eth(batman_ogm_packet->orig,
+				hard_iface->net_dev->dev_addr))
+			is_my_orig = 1;
+
+		if (compare_eth(batman_ogm_packet->prev_sender,
+				hard_iface->net_dev->dev_addr))
+			is_my_oldorig = 1;
+
+		if (is_broadcast_ether_addr(ethhdr->h_source))
+			is_broadcast = 1;
+	}
+	rcu_read_unlock();
+
+	if (batman_ogm_packet->version != COMPAT_VERSION) {
+		bat_dbg(DBG_BATMAN, bat_priv,
+			"Drop packet: incompatible batman version (%i)\n",
+			batman_ogm_packet->version);
+		return;
+	}
+
+	if (is_my_addr) {
+		bat_dbg(DBG_BATMAN, bat_priv,
+			"Drop packet: received my own broadcast (sender: %pM"
+			")\n",
+			ethhdr->h_source);
+		return;
+	}
+
+	if (is_broadcast) {
+		bat_dbg(DBG_BATMAN, bat_priv, "Drop packet: "
+		"ignoring all packets with broadcast source addr (sender: %pM"
+		")\n", ethhdr->h_source);
+		return;
+	}
+
+	if (is_my_orig) {
+		unsigned long *word;
+		int offset;
+
+		orig_neigh_node = get_orig_node(bat_priv, ethhdr->h_source);
+		if (!orig_neigh_node)
+			return;
+
+		/* neighbor has to indicate direct link and it has to
+		 * come via the corresponding interface */
+		/* save packet seqno for bidirectional check */
+		if (has_directlink_flag &&
+		    compare_eth(if_incoming->net_dev->dev_addr,
+				batman_ogm_packet->orig)) {
+			offset = if_incoming->if_num * NUM_WORDS;
+
+			spin_lock_bh(&orig_neigh_node->ogm_cnt_lock);
+			word = &(orig_neigh_node->bcast_own[offset]);
+			bit_mark(word,
+				 if_incoming_seqno -
+						batman_ogm_packet->seqno - 2);
+			orig_neigh_node->bcast_own_sum[if_incoming->if_num] =
+				bit_packet_count(word);
+			spin_unlock_bh(&orig_neigh_node->ogm_cnt_lock);
+		}
+
+		bat_dbg(DBG_BATMAN, bat_priv, "Drop packet: "
+			"originator packet from myself (via neighbor)\n");
+		orig_node_free_ref(orig_neigh_node);
+		return;
+	}
+
+	if (is_my_oldorig) {
+		bat_dbg(DBG_BATMAN, bat_priv,
+			"Drop packet: ignoring all rebroadcast echos (sender: "
+			"%pM)\n", ethhdr->h_source);
+		return;
+	}
+
+	orig_node = get_orig_node(bat_priv, batman_ogm_packet->orig);
+	if (!orig_node)
+		return;
+
+	is_duplicate = bat_ogm_update_seqnos(ethhdr, batman_ogm_packet,
+					     if_incoming);
+
+	if (is_duplicate == -1) {
+		bat_dbg(DBG_BATMAN, bat_priv,
+			"Drop packet: packet within seqno protection time "
+			"(sender: %pM)\n", ethhdr->h_source);
+		goto out;
+	}
+
+	if (batman_ogm_packet->tq == 0) {
+		bat_dbg(DBG_BATMAN, bat_priv,
+			"Drop packet: originator packet with tq equal 0\n");
+		goto out;
+	}
+
+	router = orig_node_get_router(orig_node);
+	if (router)
+		router_router = orig_node_get_router(router->orig_node);
+
+	/* avoid temporary routing loops */
+	if (router && router_router &&
+	    (compare_eth(router->addr, batman_ogm_packet->prev_sender)) &&
+	    !(compare_eth(batman_ogm_packet->orig,
+			  batman_ogm_packet->prev_sender)) &&
+	    (compare_eth(router->addr, router_router->addr))) {
+		bat_dbg(DBG_BATMAN, bat_priv,
+			"Drop packet: ignoring all rebroadcast packets that "
+			"may make me loop (sender: %pM)\n", ethhdr->h_source);
+		goto out;
+	}
+
+	/* if sender is a direct neighbor the sender mac equals
+	 * originator mac */
+	orig_neigh_node = (is_single_hop_neigh ?
+			   orig_node :
+			   get_orig_node(bat_priv, ethhdr->h_source));
+	if (!orig_neigh_node)
+		goto out;
+
+	orig_neigh_router = orig_node_get_router(orig_neigh_node);
+
+	/* drop packet if sender is not a direct neighbor and if we
+	 * don't route towards it */
+	if (!is_single_hop_neigh && (!orig_neigh_router)) {
+		bat_dbg(DBG_BATMAN, bat_priv,
+			"Drop packet: OGM via unknown neighbor!\n");
+		goto out_neigh;
+	}
+
+	is_bidirectional = bat_ogm_calc_tq(orig_node, orig_neigh_node,
+					   batman_ogm_packet, if_incoming);
+
+	bonding_save_primary(orig_node, orig_neigh_node, batman_ogm_packet);
+
+	/* update ranking if it is not a duplicate or has the same
+	 * seqno and similar ttl as the non-duplicate */
+	if (is_bidirectional &&
+	    (!is_duplicate ||
+	     ((orig_node->last_real_seqno == batman_ogm_packet->seqno) &&
+	      (orig_node->last_ttl - 3 <= batman_ogm_packet->ttl))))
+		bat_ogm_orig_update(bat_priv, orig_node, ethhdr,
+				    batman_ogm_packet, if_incoming,
+				    tt_buff, is_duplicate);
+
+	/* is single hop (direct) neighbor */
+	if (is_single_hop_neigh) {
+
+		/* mark direct link on incoming interface */
+		bat_ogm_forward(orig_node, ethhdr, batman_ogm_packet,
+				1, if_incoming);
+
+		bat_dbg(DBG_BATMAN, bat_priv, "Forwarding packet: "
+			"rebroadcast neighbor packet with direct link flag\n");
+		goto out_neigh;
+	}
+
+	/* multihop originator */
+	if (!is_bidirectional) {
+		bat_dbg(DBG_BATMAN, bat_priv,
+			"Drop packet: not received via bidirectional link\n");
+		goto out_neigh;
+	}
+
+	if (is_duplicate) {
+		bat_dbg(DBG_BATMAN, bat_priv,
+			"Drop packet: duplicate packet received\n");
+		goto out_neigh;
+	}
+
+	bat_dbg(DBG_BATMAN, bat_priv,
+		"Forwarding packet: rebroadcast originator packet\n");
+	bat_ogm_forward(orig_node, ethhdr, batman_ogm_packet, 0, if_incoming);
+
+out_neigh:
+	if ((orig_neigh_node) && (!is_single_hop_neigh))
+		orig_node_free_ref(orig_neigh_node);
+out:
+	if (router)
+		neigh_node_free_ref(router);
+	if (router_router)
+		neigh_node_free_ref(router_router);
+	if (orig_neigh_router)
+		neigh_node_free_ref(orig_neigh_router);
+
+	orig_node_free_ref(orig_node);
+}
+
+void bat_ogm_receive(const struct ethhdr *ethhdr, unsigned char *packet_buff,
+		     int packet_len, struct hard_iface *if_incoming)
+{
+	struct batman_ogm_packet *batman_ogm_packet;
+	int buff_pos = 0;
+	unsigned char *tt_buff;
+
+	batman_ogm_packet = (struct batman_ogm_packet *)packet_buff;
+
+	/* unpack the aggregated packets and process them one by one */
+	do {
+		/* network to host order for our 32bit seqno and the
+		   orig_interval */
+		batman_ogm_packet->seqno = ntohl(batman_ogm_packet->seqno);
+		batman_ogm_packet->tt_crc = ntohs(batman_ogm_packet->tt_crc);
+
+		tt_buff = packet_buff + buff_pos + BATMAN_OGM_LEN;
+
+		bat_ogm_process(ethhdr, batman_ogm_packet,
+				tt_buff, if_incoming);
+
+		buff_pos += BATMAN_OGM_LEN +
+				tt_len(batman_ogm_packet->tt_num_changes);
+
+		batman_ogm_packet = (struct batman_ogm_packet *)
+						(packet_buff + buff_pos);
+	} while (bat_ogm_aggr_packet(buff_pos, packet_len,
+				     batman_ogm_packet->tt_num_changes));
+}
diff --git a/net/batman-adv/bat_ogm.h b/net/batman-adv/bat_ogm.h
new file mode 100644
index 00000000000..69329c107e2
--- /dev/null
+++ b/net/batman-adv/bat_ogm.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2007-2011 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ *
+ */
+
+#ifndef _NET_BATMAN_ADV_OGM_H_
+#define _NET_BATMAN_ADV_OGM_H_
+
+#include "main.h"
+
+void bat_ogm_init(struct hard_iface *hard_iface);
+void bat_ogm_init_primary(struct hard_iface *hard_iface);
+void bat_ogm_update_mac(struct hard_iface *hard_iface);
+void bat_ogm_schedule(struct hard_iface *hard_iface, int tt_num_changes);
+void bat_ogm_emit(struct forw_packet *forw_packet);
+void bat_ogm_receive(const struct ethhdr *ethhdr, unsigned char *packet_buff,
+		     int packet_len, struct hard_iface *if_incoming);
+
+#endif /* _NET_BATMAN_ADV_OGM_H_ */
diff --git a/net/batman-adv/bat_sysfs.c b/net/batman-adv/bat_sysfs.c
index cd15deba60a..b8a7414c357 100644
--- a/net/batman-adv/bat_sysfs.c
+++ b/net/batman-adv/bat_sysfs.c
@@ -380,6 +380,7 @@ static ssize_t store_gw_bwidth(struct kobject *kobj, struct attribute *attr,
 BAT_ATTR_BOOL(aggregated_ogms, S_IRUGO | S_IWUSR, NULL);
 BAT_ATTR_BOOL(bonding, S_IRUGO | S_IWUSR, NULL);
 BAT_ATTR_BOOL(fragmentation, S_IRUGO | S_IWUSR, update_min_mtu);
+BAT_ATTR_BOOL(ap_isolation, S_IRUGO | S_IWUSR, NULL);
 static BAT_ATTR(vis_mode, S_IRUGO | S_IWUSR, show_vis_mode, store_vis_mode);
 static BAT_ATTR(gw_mode, S_IRUGO | S_IWUSR, show_gw_mode, store_gw_mode);
 BAT_ATTR_UINT(orig_interval, S_IRUGO | S_IWUSR, 2 * JITTER, INT_MAX, NULL);
@@ -396,6 +397,7 @@ static struct bat_attribute *mesh_attrs[] = {
 	&bat_attr_aggregated_ogms,
 	&bat_attr_bonding,
 	&bat_attr_fragmentation,
+	&bat_attr_ap_isolation,
 	&bat_attr_vis_mode,
 	&bat_attr_gw_mode,
 	&bat_attr_orig_interval,
diff --git a/net/batman-adv/bitarray.c b/net/batman-adv/bitarray.c
index c1f4bfc09cc..0be9ff346fa 100644
--- a/net/batman-adv/bitarray.c
+++ b/net/batman-adv/bitarray.c
@@ -97,12 +97,12 @@ static void bit_shift(unsigned long *seq_bits, int32_t n)
 			(seq_bits[i - word_num - 1] >>
 			 (WORD_BIT_SIZE-word_offset));
 		/* and the upper part of the right half and shift it left to
-		 * it's position */
+		 * its position */
 		/* for our example that would be: word[0] = 9800 + 0076 =
 		 * 9876 */
 	}
-	/* now for our last word, i==word_num, we only have the it's "left"
-	 * half. that's the 1000 word in our example.*/
+	/* now for our last word, i==word_num, we only have its "left" half.
+	 * that's the 1000 word in our example.*/
 
 	seq_bits[i] = (seq_bits[i - word_num] << word_offset);
 
diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
index 056180ef9e1..619fb73b3b7 100644
--- a/net/batman-adv/gateway_client.c
+++ b/net/batman-adv/gateway_client.c
@@ -532,14 +532,14 @@ static bool is_type_dhcprequest(struct sk_buff *skb, int header_len)
 	pkt_len -= header_len + DHCP_OPTIONS_OFFSET + 1;
 
 	/* Access the dhcp option lists. Each entry is made up by:
-	 * - octect 1: option type
-	 * - octect 2: option data len (only if type != 255 and 0)
-	 * - octect 3: option data */
+	 * - octet 1: option type
+	 * - octet 2: option data len (only if type != 255 and 0)
+	 * - octet 3: option data */
 	while (*p != 255 && !ret) {
-		/* p now points to the first octect: option type */
+		/* p now points to the first octet: option type */
 		if (*p == 53) {
 			/* type 53 is the message type option.
-			 * Jump the len octect and go to the data octect */
+			 * Jump the len octet and go to the data octet */
 			if (pkt_len < 2)
 				goto out;
 			p += 2;
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index db7aacf1e09..7704df468e0 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -28,6 +28,7 @@
 #include "bat_sysfs.h"
 #include "originator.h"
 #include "hash.h"
+#include "bat_ogm.h"
 
 #include <linux/if_arp.h>
 
@@ -131,7 +132,6 @@ static void primary_if_select(struct bat_priv *bat_priv,
 			      struct hard_iface *new_hard_iface)
 {
 	struct hard_iface *curr_hard_iface;
-	struct batman_packet *batman_packet;
 
 	ASSERT_RTNL();
 
@@ -147,10 +147,7 @@ static void primary_if_select(struct bat_priv *bat_priv,
 	if (!new_hard_iface)
 		return;
 
-	batman_packet = (struct batman_packet *)(new_hard_iface->packet_buff);
-	batman_packet->flags = PRIMARIES_FIRST_HOP;
-	batman_packet->ttl = TTL;
-
+	bat_ogm_init_primary(new_hard_iface);
 	primary_if_update_addr(bat_priv);
 }
 
@@ -162,14 +159,6 @@ static bool hardif_is_iface_up(const struct hard_iface *hard_iface)
 	return false;
 }
 
-static void update_mac_addresses(struct hard_iface *hard_iface)
-{
-	memcpy(((struct batman_packet *)(hard_iface->packet_buff))->orig,
-	       hard_iface->net_dev->dev_addr, ETH_ALEN);
-	memcpy(((struct batman_packet *)(hard_iface->packet_buff))->prev_sender,
-	       hard_iface->net_dev->dev_addr, ETH_ALEN);
-}
-
 static void check_known_mac_addr(const struct net_device *net_dev)
 {
 	const struct hard_iface *hard_iface;
@@ -244,12 +233,12 @@ static void hardif_activate_interface(struct hard_iface *hard_iface)
 
 	bat_priv = netdev_priv(hard_iface->soft_iface);
 
-	update_mac_addresses(hard_iface);
+	bat_ogm_update_mac(hard_iface);
 	hard_iface->if_status = IF_TO_BE_ACTIVATED;
 
 	/**
 	 * the first active interface becomes our primary interface or
-	 * the next active interface after the old primay interface was removed
+	 * the next active interface after the old primary interface was removed
 	 */
 	primary_if = primary_if_get_selected(bat_priv);
 	if (!primary_if)
@@ -283,7 +272,6 @@ int hardif_enable_interface(struct hard_iface *hard_iface,
 			    const char *iface_name)
 {
 	struct bat_priv *bat_priv;
-	struct batman_packet *batman_packet;
 	struct net_device *soft_iface;
 	int ret;
 
@@ -318,8 +306,8 @@ int hardif_enable_interface(struct hard_iface *hard_iface,
 
 	hard_iface->soft_iface = soft_iface;
 	bat_priv = netdev_priv(hard_iface->soft_iface);
-	hard_iface->packet_len = BAT_PACKET_LEN;
-	hard_iface->packet_buff = kmalloc(hard_iface->packet_len, GFP_ATOMIC);
+
+	bat_ogm_init(hard_iface);
 
 	if (!hard_iface->packet_buff) {
 		bat_err(hard_iface->soft_iface, "Can't add interface packet "
@@ -328,15 +316,6 @@ int hardif_enable_interface(struct hard_iface *hard_iface,
 		goto err;
 	}
 
-	batman_packet = (struct batman_packet *)(hard_iface->packet_buff);
-	batman_packet->packet_type = BAT_PACKET;
-	batman_packet->version = COMPAT_VERSION;
-	batman_packet->flags = NO_FLAGS;
-	batman_packet->ttl = 2;
-	batman_packet->tq = TQ_MAX_VALUE;
-	batman_packet->tt_num_changes = 0;
-	batman_packet->ttvn = 0;
-
 	hard_iface->if_num = bat_priv->num_ifaces;
 	bat_priv->num_ifaces++;
 	hard_iface->if_status = IF_INACTIVE;
@@ -381,7 +360,7 @@ int hardif_enable_interface(struct hard_iface *hard_iface,
 			hard_iface->net_dev->name);
 
 	/* begin scheduling originator messages on that interface */
-	schedule_own_packet(hard_iface);
+	schedule_bat_ogm(hard_iface);
 
 out:
 	return 0;
@@ -455,11 +434,8 @@ static struct hard_iface *hardif_add_interface(struct net_device *net_dev)
 	dev_hold(net_dev);
 
 	hard_iface = kmalloc(sizeof(*hard_iface), GFP_ATOMIC);
-	if (!hard_iface) {
-		pr_err("Can't add interface (%s): out of memory\n",
-		       net_dev->name);
+	if (!hard_iface)
 		goto release_dev;
-	}
 
 	ret = sysfs_add_hardif(&hard_iface->hardif_obj, net_dev);
 	if (ret)
@@ -551,7 +527,7 @@ static int hard_if_event(struct notifier_block *this,
 			goto hardif_put;
 
 		check_known_mac_addr(hard_iface->net_dev);
-		update_mac_addresses(hard_iface);
+		bat_ogm_update_mac(hard_iface);
 
 		bat_priv = netdev_priv(hard_iface->soft_iface);
 		primary_if = primary_if_get_selected(bat_priv);
@@ -573,14 +549,14 @@ out:
 	return NOTIFY_DONE;
 }
 
-/* receive a packet with the batman ethertype coming on a hard
+/* incoming packets with the batman ethertype received on any active hard
  * interface */
 static int batman_skb_recv(struct sk_buff *skb, struct net_device *dev,
 			   struct packet_type *ptype,
 			   struct net_device *orig_dev)
 {
 	struct bat_priv *bat_priv;
-	struct batman_packet *batman_packet;
+	struct batman_ogm_packet *batman_ogm_packet;
 	struct hard_iface *hard_iface;
 	int ret;
 
@@ -612,22 +588,22 @@ static int batman_skb_recv(struct sk_buff *skb, struct net_device *dev,
 	if (hard_iface->if_status != IF_ACTIVE)
 		goto err_free;
 
-	batman_packet = (struct batman_packet *)skb->data;
+	batman_ogm_packet = (struct batman_ogm_packet *)skb->data;
 
-	if (batman_packet->version != COMPAT_VERSION) {
+	if (batman_ogm_packet->version != COMPAT_VERSION) {
 		bat_dbg(DBG_BATMAN, bat_priv,
 			"Drop packet: incompatible batman version (%i)\n",
-			batman_packet->version);
+			batman_ogm_packet->version);
 		goto err_free;
 	}
 
 	/* all receive handlers return whether they received or reused
 	 * the supplied skb. if not, we have to free the skb. */
 
-	switch (batman_packet->packet_type) {
+	switch (batman_ogm_packet->packet_type) {
 		/* batman originator packet */
-	case BAT_PACKET:
-		ret = recv_bat_packet(skb, hard_iface);
+	case BAT_OGM:
+		ret = recv_bat_ogm_packet(skb, hard_iface);
 		break;
 
 		/* batman icmp packet */
@@ -681,6 +657,36 @@ err_out:
 	return NET_RX_DROP;
 }
 
+/* This function returns true if the interface represented by ifindex is a
+ * 802.11 wireless device */
+bool is_wifi_iface(int ifindex)
+{
+	struct net_device *net_device = NULL;
+	bool ret = false;
+
+	if (ifindex == NULL_IFINDEX)
+		goto out;
+
+	net_device = dev_get_by_index(&init_net, ifindex);
+	if (!net_device)
+		goto out;
+
+#ifdef CONFIG_WIRELESS_EXT
+	/* pre-cfg80211 drivers have to implement WEXT, so it is possible to
+	 * check for wireless_handlers != NULL */
+	if (net_device->wireless_handlers)
+		ret = true;
+	else
+#endif
+		/* cfg80211 drivers have to set ieee80211_ptr */
+		if (net_device->ieee80211_ptr)
+			ret = true;
+out:
+	if (net_device)
+		dev_put(net_device);
+	return ret;
+}
+
 struct notifier_block hard_if_notifier = {
 	.notifier_call = hard_if_event,
 };
diff --git a/net/batman-adv/hard-interface.h b/net/batman-adv/hard-interface.h
index 442eacbc9e3..67f78d1a63b 100644
--- a/net/batman-adv/hard-interface.h
+++ b/net/batman-adv/hard-interface.h
@@ -42,6 +42,7 @@ void hardif_remove_interfaces(void);
 int hardif_min_mtu(struct net_device *soft_iface);
 void update_min_mtu(struct net_device *soft_iface);
 void hardif_free_rcu(struct rcu_head *rcu);
+bool is_wifi_iface(int ifindex);
 
 static inline void hardif_free_ref(struct hard_iface *hard_iface)
 {
diff --git a/net/batman-adv/hash.h b/net/batman-adv/hash.h
index dd5c9fd7a90..d20aa71ba1e 100644
--- a/net/batman-adv/hash.h
+++ b/net/batman-adv/hash.h
@@ -76,19 +76,30 @@ static inline void hash_delete(struct hashtable_t *hash,
 	hash_destroy(hash);
 }
 
-/* adds data to the hashtable. returns 0 on success, -1 on error */
+/**
+ *	hash_add - adds data to the hashtable
+ *	@hash: storage hash table
+ *	@compare: callback to determine if 2 hash elements are identical
+ *	@choose: callback calculating the hash index
+ *	@data: data passed to the aforementioned callbacks as argument
+ *	@data_node: to be added element
+ *
+ *	Returns 0 on success, 1 if the element already is in the hash
+ *	and -1 on error.
+ */
+
 static inline int hash_add(struct hashtable_t *hash,
 			   hashdata_compare_cb compare,
 			   hashdata_choose_cb choose,
 			   const void *data, struct hlist_node *data_node)
 {
-	int index;
+	int index, ret = -1;
 	struct hlist_head *head;
 	struct hlist_node *node;
 	spinlock_t *list_lock; /* spinlock to protect write access */
 
 	if (!hash)
-		goto err;
+		goto out;
 
 	index = choose(data, hash->size);
 	head = &hash->table[index];
@@ -99,6 +110,7 @@ static inline int hash_add(struct hashtable_t *hash,
 		if (!compare(node, data))
 			continue;
 
+		ret = 1;
 		goto err_unlock;
 	}
 	rcu_read_unlock();
@@ -108,12 +120,13 @@ static inline int hash_add(struct hashtable_t *hash,
 	hlist_add_head_rcu(data_node, head);
 	spin_unlock_bh(list_lock);
 
-	return 0;
+	ret = 0;
+	goto out;
 
 err_unlock:
 	rcu_read_unlock();
-err:
-	return -1;
+out:
+	return ret;
 }
 
 /* removes data from hash, if found. returns pointer do data on success, so you
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index b0f9068ade5..fb87bdc2ce9 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -107,7 +107,7 @@ int mesh_init(struct net_device *soft_iface)
 	if (tt_init(bat_priv) < 1)
 		goto err;
 
-	tt_local_add(soft_iface, soft_iface->dev_addr);
+	tt_local_add(soft_iface, soft_iface->dev_addr, NULL_IFINDEX);
 
 	if (vis_init(bat_priv) < 1)
 		goto err;
@@ -117,8 +117,6 @@ int mesh_init(struct net_device *soft_iface)
 	goto end;
 
 err:
-	pr_err("Unable to allocate memory for mesh information structures: "
-	       "out of mem ?\n");
 	mesh_free(soft_iface);
 	return -1;
 
diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
index a6df61a6933..964ad4d8ba3 100644
--- a/net/batman-adv/main.h
+++ b/net/batman-adv/main.h
@@ -28,7 +28,7 @@
 #define DRIVER_DEVICE "batman-adv"
 
 #ifndef SOURCE_VERSION
-#define SOURCE_VERSION "2011.3.0"
+#define SOURCE_VERSION "2011.4.0"
 #endif
 
 /* B.A.T.M.A.N. parameters */
@@ -44,7 +44,7 @@
 #define PURGE_TIMEOUT 200
 #define TT_LOCAL_TIMEOUT 3600 /* in seconds */
 #define TT_CLIENT_ROAM_TIMEOUT 600
-/* sliding packet range of received originator messages in squence numbers
+/* sliding packet range of received originator messages in sequence numbers
  * (should be a multiple of our word size) */
 #define TQ_LOCAL_WINDOW_SIZE 64
 #define TT_REQUEST_TIMEOUT 3 /* seconds we have to keep pending tt_req */
@@ -62,6 +62,8 @@
 
 #define NO_FLAGS 0
 
+#define NULL_IFINDEX 0 /* dummy ifindex used to avoid iface checks */
+
 #define NUM_WORDS (TQ_LOCAL_WINDOW_SIZE / WORD_BIT_SIZE)
 
 #define LOG_BUF_LEN 8192	  /* has to be a power of 2 */
@@ -133,7 +135,7 @@ enum dbg_level {
 #include <linux/mutex.h>	/* mutex */
 #include <linux/module.h>	/* needed by all modules */
 #include <linux/netdevice.h>	/* netdevice */
-#include <linux/etherdevice.h>  /* ethernet address classifaction */
+#include <linux/etherdevice.h>  /* ethernet address classification */
 #include <linux/if_ether.h>	/* ethernet header */
 #include <linux/poll.h>		/* poll_table */
 #include <linux/kthread.h>	/* kernel threads */
diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index f3c3f620d19..0e5b77255d9 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -252,7 +252,7 @@ struct orig_node *get_orig_node(struct bat_priv *bat_priv, const uint8_t *addr)
 
 	hash_added = hash_add(bat_priv->orig_hash, compare_orig,
 			      choose_orig, orig_node, &orig_node->hash_entry);
-	if (hash_added < 0)
+	if (hash_added != 0)
 		goto free_bcast_own_sum;
 
 	return orig_node;
@@ -336,8 +336,7 @@ static bool purge_orig_node(struct bat_priv *bat_priv,
 	} else {
 		if (purge_orig_neighbors(bat_priv, orig_node,
 							&best_neigh_node)) {
-			update_routes(bat_priv, orig_node,
-				      best_neigh_node);
+			update_route(bat_priv, orig_node, best_neigh_node);
 		}
 	}
 
@@ -493,10 +492,8 @@ static int orig_node_add_if(struct orig_node *orig_node, int max_if_num)
 
 	data_ptr = kmalloc(max_if_num * sizeof(unsigned long) * NUM_WORDS,
 			   GFP_ATOMIC);
-	if (!data_ptr) {
-		pr_err("Can't resize orig: out of memory\n");
+	if (!data_ptr)
 		return -1;
-	}
 
 	memcpy(data_ptr, orig_node->bcast_own,
 	       (max_if_num - 1) * sizeof(unsigned long) * NUM_WORDS);
@@ -504,10 +501,8 @@ static int orig_node_add_if(struct orig_node *orig_node, int max_if_num)
 	orig_node->bcast_own = data_ptr;
 
 	data_ptr = kmalloc(max_if_num * sizeof(uint8_t), GFP_ATOMIC);
-	if (!data_ptr) {
-		pr_err("Can't resize orig: out of memory\n");
+	if (!data_ptr)
 		return -1;
-	}
 
 	memcpy(data_ptr, orig_node->bcast_own_sum,
 	       (max_if_num - 1) * sizeof(uint8_t));
@@ -562,10 +557,8 @@ static int orig_node_del_if(struct orig_node *orig_node,
 
 	chunk_size = sizeof(unsigned long) * NUM_WORDS;
 	data_ptr = kmalloc(max_if_num * chunk_size, GFP_ATOMIC);
-	if (!data_ptr) {
-		pr_err("Can't resize orig: out of memory\n");
+	if (!data_ptr)
 		return -1;
-	}
 
 	/* copy first part */
 	memcpy(data_ptr, orig_node->bcast_own, del_if_num * chunk_size);
@@ -583,10 +576,8 @@ free_bcast_own:
 		goto free_own_sum;
 
 	data_ptr = kmalloc(max_if_num * sizeof(uint8_t), GFP_ATOMIC);
-	if (!data_ptr) {
-		pr_err("Can't resize orig: out of memory\n");
+	if (!data_ptr)
 		return -1;
-	}
 
 	memcpy(data_ptr, orig_node->bcast_own_sum,
 	       del_if_num * sizeof(uint8_t));
diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index b76b4be10b9..4d9e54c57a3 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -25,14 +25,14 @@
 #define ETH_P_BATMAN  0x4305	/* unofficial/not registered Ethertype */
 
 enum bat_packettype {
-	BAT_PACKET       = 0x01,
-	BAT_ICMP         = 0x02,
-	BAT_UNICAST      = 0x03,
-	BAT_BCAST        = 0x04,
-	BAT_VIS          = 0x05,
+	BAT_OGM		 = 0x01,
+	BAT_ICMP	 = 0x02,
+	BAT_UNICAST	 = 0x03,
+	BAT_BCAST	 = 0x04,
+	BAT_VIS		 = 0x05,
 	BAT_UNICAST_FRAG = 0x06,
-	BAT_TT_QUERY     = 0x07,
-	BAT_ROAM_ADV     = 0x08
+	BAT_TT_QUERY	 = 0x07,
+	BAT_ROAM_ADV	 = 0x08
 };
 
 /* this file is included by batctl which needs these defines */
@@ -84,12 +84,13 @@ enum tt_query_flags {
 enum tt_client_flags {
 	TT_CLIENT_DEL     = 1 << 0,
 	TT_CLIENT_ROAM    = 1 << 1,
+	TT_CLIENT_WIFI    = 1 << 2,
 	TT_CLIENT_NOPURGE = 1 << 8,
 	TT_CLIENT_NEW     = 1 << 9,
 	TT_CLIENT_PENDING = 1 << 10
 };
 
-struct batman_packet {
+struct batman_ogm_packet {
 	uint8_t  packet_type;
 	uint8_t  version;  /* batman version field */
 	uint8_t  ttl;
@@ -104,7 +105,7 @@ struct batman_packet {
 	uint16_t tt_crc;
 } __packed;
 
-#define BAT_PACKET_LEN sizeof(struct batman_packet)
+#define BATMAN_OGM_LEN sizeof(struct batman_ogm_packet)
 
 struct icmp_packet {
 	uint8_t  packet_type;
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 0f32c818874..f961cc5eade 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -22,18 +22,14 @@
 #include "main.h"
 #include "routing.h"
 #include "send.h"
-#include "hash.h"
 #include "soft-interface.h"
 #include "hard-interface.h"
 #include "icmp_socket.h"
 #include "translation-table.h"
 #include "originator.h"
-#include "ring_buffer.h"
 #include "vis.h"
-#include "aggregation.h"
-#include "gateway_common.h"
-#include "gateway_client.h"
 #include "unicast.h"
+#include "bat_ogm.h"
 
 void slide_own_bcast_window(struct hard_iface *hard_iface)
 {
@@ -64,69 +60,9 @@ void slide_own_bcast_window(struct hard_iface *hard_iface)
 	}
 }
 
-static void update_transtable(struct bat_priv *bat_priv,
-			      struct orig_node *orig_node,
-			      const unsigned char *tt_buff,
-			      uint8_t tt_num_changes, uint8_t ttvn,
-			      uint16_t tt_crc)
-{
-	uint8_t orig_ttvn = (uint8_t)atomic_read(&orig_node->last_ttvn);
-	bool full_table = true;
-
-	/* the ttvn increased by one -> we can apply the attached changes */
-	if (ttvn - orig_ttvn == 1) {
-		/* the OGM could not contain the changes because they were too
-		 * many to fit in one frame or because they have already been
-		 * sent TT_OGM_APPEND_MAX times. In this case send a tt
-		 * request */
-		if (!tt_num_changes) {
-			full_table = false;
-			goto request_table;
-		}
-
-		tt_update_changes(bat_priv, orig_node, tt_num_changes, ttvn,
-				  (struct tt_change *)tt_buff);
-
-		/* Even if we received the crc into the OGM, we prefer
-		 * to recompute it to spot any possible inconsistency
-		 * in the global table */
-		orig_node->tt_crc = tt_global_crc(bat_priv, orig_node);
-
-		/* The ttvn alone is not enough to guarantee consistency
-		 * because a single value could repesent different states
-		 * (due to the wrap around). Thus a node has to check whether
-		 * the resulting table (after applying the changes) is still
-		 * consistent or not. E.g. a node could disconnect while its
-		 * ttvn is X and reconnect on ttvn = X + TTVN_MAX: in this case
-		 * checking the CRC value is mandatory to detect the
-		 * inconsistency */
-		if (orig_node->tt_crc != tt_crc)
-			goto request_table;
-
-		/* Roaming phase is over: tables are in sync again. I can
-		 * unset the flag */
-		orig_node->tt_poss_change = false;
-	} else {
-		/* if we missed more than one change or our tables are not
-		 * in sync anymore -> request fresh tt data */
-		if (ttvn != orig_ttvn || orig_node->tt_crc != tt_crc) {
-request_table:
-			bat_dbg(DBG_TT, bat_priv, "TT inconsistency for %pM. "
-				"Need to retrieve the correct information "
-				"(ttvn: %u last_ttvn: %u crc: %u last_crc: "
-				"%u num_changes: %u)\n", orig_node->orig, ttvn,
-				orig_ttvn, tt_crc, orig_node->tt_crc,
-				tt_num_changes);
-			send_tt_request(bat_priv, orig_node, ttvn, tt_crc,
-					full_table);
-			return;
-		}
-	}
-}
-
-static void update_route(struct bat_priv *bat_priv,
-			 struct orig_node *orig_node,
-			 struct neigh_node *neigh_node)
+static void _update_route(struct bat_priv *bat_priv,
+			  struct orig_node *orig_node,
+			  struct neigh_node *neigh_node)
 {
 	struct neigh_node *curr_router;
 
@@ -170,8 +106,8 @@ static void update_route(struct bat_priv *bat_priv,
 		neigh_node_free_ref(curr_router);
 }
 
-void update_routes(struct bat_priv *bat_priv, struct orig_node *orig_node,
-		   struct neigh_node *neigh_node)
+void update_route(struct bat_priv *bat_priv, struct orig_node *orig_node,
+		  struct neigh_node *neigh_node)
 {
 	struct neigh_node *router = NULL;
 
@@ -181,116 +117,13 @@ void update_routes(struct bat_priv *bat_priv, struct orig_node *orig_node,
 	router = orig_node_get_router(orig_node);
 
 	if (router != neigh_node)
-		update_route(bat_priv, orig_node, neigh_node);
+		_update_route(bat_priv, orig_node, neigh_node);
 
 out:
 	if (router)
 		neigh_node_free_ref(router);
 }
 
-static int is_bidirectional_neigh(struct orig_node *orig_node,
-				struct orig_node *orig_neigh_node,
-				struct batman_packet *batman_packet,
-				struct hard_iface *if_incoming)
-{
-	struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
-	struct neigh_node *neigh_node = NULL, *tmp_neigh_node;
-	struct hlist_node *node;
-	uint8_t total_count;
-	uint8_t orig_eq_count, neigh_rq_count, tq_own;
-	int tq_asym_penalty, ret = 0;
-
-	/* find corresponding one hop neighbor */
-	rcu_read_lock();
-	hlist_for_each_entry_rcu(tmp_neigh_node, node,
-				 &orig_neigh_node->neigh_list, list) {
-
-		if (!compare_eth(tmp_neigh_node->addr, orig_neigh_node->orig))
-			continue;
-
-		if (tmp_neigh_node->if_incoming != if_incoming)
-			continue;
-
-		if (!atomic_inc_not_zero(&tmp_neigh_node->refcount))
-			continue;
-
-		neigh_node = tmp_neigh_node;
-		break;
-	}
-	rcu_read_unlock();
-
-	if (!neigh_node)
-		neigh_node = create_neighbor(orig_neigh_node,
-					     orig_neigh_node,
-					     orig_neigh_node->orig,
-					     if_incoming);
-
-	if (!neigh_node)
-		goto out;
-
-	/* if orig_node is direct neighbour update neigh_node last_valid */
-	if (orig_node == orig_neigh_node)
-		neigh_node->last_valid = jiffies;
-
-	orig_node->last_valid = jiffies;
-
-	/* find packet count of corresponding one hop neighbor */
-	spin_lock_bh(&orig_node->ogm_cnt_lock);
-	orig_eq_count = orig_neigh_node->bcast_own_sum[if_incoming->if_num];
-	neigh_rq_count = neigh_node->real_packet_count;
-	spin_unlock_bh(&orig_node->ogm_cnt_lock);
-
-	/* pay attention to not get a value bigger than 100 % */
-	total_count = (orig_eq_count > neigh_rq_count ?
-		       neigh_rq_count : orig_eq_count);
-
-	/* if we have too few packets (too less data) we set tq_own to zero */
-	/* if we receive too few packets it is not considered bidirectional */
-	if ((total_count < TQ_LOCAL_BIDRECT_SEND_MINIMUM) ||
-	    (neigh_rq_count < TQ_LOCAL_BIDRECT_RECV_MINIMUM))
-		tq_own = 0;
-	else
-		/* neigh_node->real_packet_count is never zero as we
-		 * only purge old information when getting new
-		 * information */
-		tq_own = (TQ_MAX_VALUE * total_count) /	neigh_rq_count;
-
-	/*
-	 * 1 - ((1-x) ** 3), normalized to TQ_MAX_VALUE this does
-	 * affect the nearly-symmetric links only a little, but
-	 * punishes asymmetric links more.  This will give a value
-	 * between 0 and TQ_MAX_VALUE
-	 */
-	tq_asym_penalty = TQ_MAX_VALUE - (TQ_MAX_VALUE *
-				(TQ_LOCAL_WINDOW_SIZE - neigh_rq_count) *
-				(TQ_LOCAL_WINDOW_SIZE - neigh_rq_count) *
-				(TQ_LOCAL_WINDOW_SIZE - neigh_rq_count)) /
-					(TQ_LOCAL_WINDOW_SIZE *
-					 TQ_LOCAL_WINDOW_SIZE *
-					 TQ_LOCAL_WINDOW_SIZE);
-
-	batman_packet->tq = ((batman_packet->tq * tq_own * tq_asym_penalty) /
-						(TQ_MAX_VALUE * TQ_MAX_VALUE));
-
-	bat_dbg(DBG_BATMAN, bat_priv,
-		"bidirectional: "
-		"orig = %-15pM neigh = %-15pM => own_bcast = %2i, "
-		"real recv = %2i, local tq: %3i, asym_penalty: %3i, "
-		"total tq: %3i\n",
-		orig_node->orig, orig_neigh_node->orig, total_count,
-		neigh_rq_count, tq_own,	tq_asym_penalty, batman_packet->tq);
-
-	/* if link has the minimum required transmission quality
-	 * consider it bidirectional */
-	if (batman_packet->tq >= TQ_TOTAL_BIDRECT_LIMIT)
-		ret = 1;
-
-out:
-	if (neigh_node)
-		neigh_node_free_ref(neigh_node);
-	return ret;
-}
-
 /* caller must hold the neigh_list_lock */
 void bonding_candidate_del(struct orig_node *orig_node,
 			   struct neigh_node *neigh_node)
@@ -308,8 +141,8 @@ out:
 	return;
 }
 
-static void bonding_candidate_add(struct orig_node *orig_node,
-				  struct neigh_node *neigh_node)
+void bonding_candidate_add(struct orig_node *orig_node,
+			   struct neigh_node *neigh_node)
 {
 	struct hlist_node *node;
 	struct neigh_node *tmp_neigh_node, *router = NULL;
@@ -379,162 +212,23 @@ out:
 }
 
 /* copy primary address for bonding */
-static void bonding_save_primary(const struct orig_node *orig_node,
-				 struct orig_node *orig_neigh_node,
-				 const struct batman_packet *batman_packet)
+void bonding_save_primary(const struct orig_node *orig_node,
+			  struct orig_node *orig_neigh_node,
+			  const struct batman_ogm_packet *batman_ogm_packet)
 {
-	if (!(batman_packet->flags & PRIMARIES_FIRST_HOP))
+	if (!(batman_ogm_packet->flags & PRIMARIES_FIRST_HOP))
 		return;
 
 	memcpy(orig_neigh_node->primary_addr, orig_node->orig, ETH_ALEN);
 }
 
-static void update_orig(struct bat_priv *bat_priv, struct orig_node *orig_node,
-			const struct ethhdr *ethhdr,
-			const struct batman_packet *batman_packet,
-			struct hard_iface *if_incoming,
-			const unsigned char *tt_buff, int is_duplicate)
-{
-	struct neigh_node *neigh_node = NULL, *tmp_neigh_node = NULL;
-	struct neigh_node *router = NULL;
-	struct orig_node *orig_node_tmp;
-	struct hlist_node *node;
-	uint8_t bcast_own_sum_orig, bcast_own_sum_neigh;
-
-	bat_dbg(DBG_BATMAN, bat_priv, "update_originator(): "
-		"Searching and updating originator entry of received packet\n");
-
-	rcu_read_lock();
-	hlist_for_each_entry_rcu(tmp_neigh_node, node,
-				 &orig_node->neigh_list, list) {
-		if (compare_eth(tmp_neigh_node->addr, ethhdr->h_source) &&
-		    (tmp_neigh_node->if_incoming == if_incoming) &&
-		     atomic_inc_not_zero(&tmp_neigh_node->refcount)) {
-			if (neigh_node)
-				neigh_node_free_ref(neigh_node);
-			neigh_node = tmp_neigh_node;
-			continue;
-		}
-
-		if (is_duplicate)
-			continue;
-
-		spin_lock_bh(&tmp_neigh_node->tq_lock);
-		ring_buffer_set(tmp_neigh_node->tq_recv,
-				&tmp_neigh_node->tq_index, 0);
-		tmp_neigh_node->tq_avg =
-			ring_buffer_avg(tmp_neigh_node->tq_recv);
-		spin_unlock_bh(&tmp_neigh_node->tq_lock);
-	}
-
-	if (!neigh_node) {
-		struct orig_node *orig_tmp;
-
-		orig_tmp = get_orig_node(bat_priv, ethhdr->h_source);
-		if (!orig_tmp)
-			goto unlock;
-
-		neigh_node = create_neighbor(orig_node, orig_tmp,
-					     ethhdr->h_source, if_incoming);
-
-		orig_node_free_ref(orig_tmp);
-		if (!neigh_node)
-			goto unlock;
-	} else
-		bat_dbg(DBG_BATMAN, bat_priv,
-			"Updating existing last-hop neighbor of originator\n");
-
-	rcu_read_unlock();
-
-	orig_node->flags = batman_packet->flags;
-	neigh_node->last_valid = jiffies;
-
-	spin_lock_bh(&neigh_node->tq_lock);
-	ring_buffer_set(neigh_node->tq_recv,
-			&neigh_node->tq_index,
-			batman_packet->tq);
-	neigh_node->tq_avg = ring_buffer_avg(neigh_node->tq_recv);
-	spin_unlock_bh(&neigh_node->tq_lock);
-
-	if (!is_duplicate) {
-		orig_node->last_ttl = batman_packet->ttl;
-		neigh_node->last_ttl = batman_packet->ttl;
-	}
-
-	bonding_candidate_add(orig_node, neigh_node);
-
-	/* if this neighbor already is our next hop there is nothing
-	 * to change */
-	router = orig_node_get_router(orig_node);
-	if (router == neigh_node)
-		goto update_tt;
-
-	/* if this neighbor does not offer a better TQ we won't consider it */
-	if (router && (router->tq_avg > neigh_node->tq_avg))
-		goto update_tt;
-
-	/* if the TQ is the same and the link not more symetric we
-	 * won't consider it either */
-	if (router && (neigh_node->tq_avg == router->tq_avg)) {
-		orig_node_tmp = router->orig_node;
-		spin_lock_bh(&orig_node_tmp->ogm_cnt_lock);
-		bcast_own_sum_orig =
-			orig_node_tmp->bcast_own_sum[if_incoming->if_num];
-		spin_unlock_bh(&orig_node_tmp->ogm_cnt_lock);
-
-		orig_node_tmp = neigh_node->orig_node;
-		spin_lock_bh(&orig_node_tmp->ogm_cnt_lock);
-		bcast_own_sum_neigh =
-			orig_node_tmp->bcast_own_sum[if_incoming->if_num];
-		spin_unlock_bh(&orig_node_tmp->ogm_cnt_lock);
-
-		if (bcast_own_sum_orig >= bcast_own_sum_neigh)
-			goto update_tt;
-	}
-
-	update_routes(bat_priv, orig_node, neigh_node);
-
-update_tt:
-	/* I have to check for transtable changes only if the OGM has been
-	 * sent through a primary interface */
-	if (((batman_packet->orig != ethhdr->h_source) &&
-				(batman_packet->ttl > 2)) ||
-				(batman_packet->flags & PRIMARIES_FIRST_HOP))
-		update_transtable(bat_priv, orig_node, tt_buff,
-				  batman_packet->tt_num_changes,
-				  batman_packet->ttvn,
-				  batman_packet->tt_crc);
-
-	if (orig_node->gw_flags != batman_packet->gw_flags)
-		gw_node_update(bat_priv, orig_node, batman_packet->gw_flags);
-
-	orig_node->gw_flags = batman_packet->gw_flags;
-
-	/* restart gateway selection if fast or late switching was enabled */
-	if ((orig_node->gw_flags) &&
-	    (atomic_read(&bat_priv->gw_mode) == GW_MODE_CLIENT) &&
-	    (atomic_read(&bat_priv->gw_sel_class) > 2))
-		gw_check_election(bat_priv, orig_node);
-
-	goto out;
-
-unlock:
-	rcu_read_unlock();
-out:
-	if (neigh_node)
-		neigh_node_free_ref(neigh_node);
-	if (router)
-		neigh_node_free_ref(router);
-}
-
 /* checks whether the host restarted and is in the protection time.
  * returns:
  *  0 if the packet is to be accepted
  *  1 if the packet is to be ignored.
  */
-static int window_protected(struct bat_priv *bat_priv,
-			    int32_t seq_num_diff,
-			    unsigned long *last_reset)
+int window_protected(struct bat_priv *bat_priv, int32_t seq_num_diff,
+		     unsigned long *last_reset)
 {
 	if ((seq_num_diff <= -TQ_LOCAL_WINDOW_SIZE)
 		|| (seq_num_diff >= EXPECTED_SEQNO_RANGE)) {
@@ -552,330 +246,12 @@ static int window_protected(struct bat_priv *bat_priv,
 	return 0;
 }
 
-/* processes a batman packet for all interfaces, adjusts the sequence number and
- * finds out whether it is a duplicate.
- * returns:
- *   1 the packet is a duplicate
- *   0 the packet has not yet been received
- *  -1 the packet is old and has been received while the seqno window
- *     was protected. Caller should drop it.
- */
-static int count_real_packets(const struct ethhdr *ethhdr,
-			       const struct batman_packet *batman_packet,
-			       const struct hard_iface *if_incoming)
-{
-	struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
-	struct orig_node *orig_node;
-	struct neigh_node *tmp_neigh_node;
-	struct hlist_node *node;
-	int is_duplicate = 0;
-	int32_t seq_diff;
-	int need_update = 0;
-	int set_mark, ret = -1;
-
-	orig_node = get_orig_node(bat_priv, batman_packet->orig);
-	if (!orig_node)
-		return 0;
-
-	spin_lock_bh(&orig_node->ogm_cnt_lock);
-	seq_diff = batman_packet->seqno - orig_node->last_real_seqno;
-
-	/* signalize caller that the packet is to be dropped. */
-	if (window_protected(bat_priv, seq_diff,
-			     &orig_node->batman_seqno_reset))
-		goto out;
-
-	rcu_read_lock();
-	hlist_for_each_entry_rcu(tmp_neigh_node, node,
-				 &orig_node->neigh_list, list) {
-
-		is_duplicate |= get_bit_status(tmp_neigh_node->real_bits,
-					       orig_node->last_real_seqno,
-					       batman_packet->seqno);
-
-		if (compare_eth(tmp_neigh_node->addr, ethhdr->h_source) &&
-		    (tmp_neigh_node->if_incoming == if_incoming))
-			set_mark = 1;
-		else
-			set_mark = 0;
-
-		/* if the window moved, set the update flag. */
-		need_update |= bit_get_packet(bat_priv,
-					      tmp_neigh_node->real_bits,
-					      seq_diff, set_mark);
-
-		tmp_neigh_node->real_packet_count =
-			bit_packet_count(tmp_neigh_node->real_bits);
-	}
-	rcu_read_unlock();
-
-	if (need_update) {
-		bat_dbg(DBG_BATMAN, bat_priv,
-			"updating last_seqno: old %d, new %d\n",
-			orig_node->last_real_seqno, batman_packet->seqno);
-		orig_node->last_real_seqno = batman_packet->seqno;
-	}
-
-	ret = is_duplicate;
-
-out:
-	spin_unlock_bh(&orig_node->ogm_cnt_lock);
-	orig_node_free_ref(orig_node);
-	return ret;
-}
-
-void receive_bat_packet(const struct ethhdr *ethhdr,
-			struct batman_packet *batman_packet,
-			const unsigned char *tt_buff,
-			struct hard_iface *if_incoming)
-{
-	struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
-	struct hard_iface *hard_iface;
-	struct orig_node *orig_neigh_node, *orig_node;
-	struct neigh_node *router = NULL, *router_router = NULL;
-	struct neigh_node *orig_neigh_router = NULL;
-	int has_directlink_flag;
-	int is_my_addr = 0, is_my_orig = 0, is_my_oldorig = 0;
-	int is_broadcast = 0, is_bidirectional, is_single_hop_neigh;
-	int is_duplicate;
-	uint32_t if_incoming_seqno;
-
-	/* Silently drop when the batman packet is actually not a
-	 * correct packet.
-	 *
-	 * This might happen if a packet is padded (e.g. Ethernet has a
-	 * minimum frame length of 64 byte) and the aggregation interprets
-	 * it as an additional length.
-	 *
-	 * TODO: A more sane solution would be to have a bit in the
-	 * batman_packet to detect whether the packet is the last
-	 * packet in an aggregation.  Here we expect that the padding
-	 * is always zero (or not 0x01)
-	 */
-	if (batman_packet->packet_type != BAT_PACKET)
-		return;
-
-	/* could be changed by schedule_own_packet() */
-	if_incoming_seqno = atomic_read(&if_incoming->seqno);
-
-	has_directlink_flag = (batman_packet->flags & DIRECTLINK ? 1 : 0);
-
-	is_single_hop_neigh = (compare_eth(ethhdr->h_source,
-					   batman_packet->orig) ? 1 : 0);
-
-	bat_dbg(DBG_BATMAN, bat_priv,
-		"Received BATMAN packet via NB: %pM, IF: %s [%pM] "
-		"(from OG: %pM, via prev OG: %pM, seqno %d, ttvn %u, "
-		"crc %u, changes %u, td %d, TTL %d, V %d, IDF %d)\n",
-		ethhdr->h_source, if_incoming->net_dev->name,
-		if_incoming->net_dev->dev_addr, batman_packet->orig,
-		batman_packet->prev_sender, batman_packet->seqno,
-		batman_packet->ttvn, batman_packet->tt_crc,
-		batman_packet->tt_num_changes, batman_packet->tq,
-		batman_packet->ttl, batman_packet->version,
-		has_directlink_flag);
-
-	rcu_read_lock();
-	list_for_each_entry_rcu(hard_iface, &hardif_list, list) {
-		if (hard_iface->if_status != IF_ACTIVE)
-			continue;
-
-		if (hard_iface->soft_iface != if_incoming->soft_iface)
-			continue;
-
-		if (compare_eth(ethhdr->h_source,
-				hard_iface->net_dev->dev_addr))
-			is_my_addr = 1;
-
-		if (compare_eth(batman_packet->orig,
-				hard_iface->net_dev->dev_addr))
-			is_my_orig = 1;
-
-		if (compare_eth(batman_packet->prev_sender,
-				hard_iface->net_dev->dev_addr))
-			is_my_oldorig = 1;
-
-		if (is_broadcast_ether_addr(ethhdr->h_source))
-			is_broadcast = 1;
-	}
-	rcu_read_unlock();
-
-	if (batman_packet->version != COMPAT_VERSION) {
-		bat_dbg(DBG_BATMAN, bat_priv,
-			"Drop packet: incompatible batman version (%i)\n",
-			batman_packet->version);
-		return;
-	}
-
-	if (is_my_addr) {
-		bat_dbg(DBG_BATMAN, bat_priv,
-			"Drop packet: received my own broadcast (sender: %pM"
-			")\n",
-			ethhdr->h_source);
-		return;
-	}
-
-	if (is_broadcast) {
-		bat_dbg(DBG_BATMAN, bat_priv, "Drop packet: "
-		"ignoring all packets with broadcast source addr (sender: %pM"
-		")\n", ethhdr->h_source);
-		return;
-	}
-
-	if (is_my_orig) {
-		unsigned long *word;
-		int offset;
-
-		orig_neigh_node = get_orig_node(bat_priv, ethhdr->h_source);
-		if (!orig_neigh_node)
-			return;
-
-		/* neighbor has to indicate direct link and it has to
-		 * come via the corresponding interface */
-		/* save packet seqno for bidirectional check */
-		if (has_directlink_flag &&
-		    compare_eth(if_incoming->net_dev->dev_addr,
-				batman_packet->orig)) {
-			offset = if_incoming->if_num * NUM_WORDS;
-
-			spin_lock_bh(&orig_neigh_node->ogm_cnt_lock);
-			word = &(orig_neigh_node->bcast_own[offset]);
-			bit_mark(word,
-				 if_incoming_seqno - batman_packet->seqno - 2);
-			orig_neigh_node->bcast_own_sum[if_incoming->if_num] =
-				bit_packet_count(word);
-			spin_unlock_bh(&orig_neigh_node->ogm_cnt_lock);
-		}
-
-		bat_dbg(DBG_BATMAN, bat_priv, "Drop packet: "
-			"originator packet from myself (via neighbor)\n");
-		orig_node_free_ref(orig_neigh_node);
-		return;
-	}
-
-	if (is_my_oldorig) {
-		bat_dbg(DBG_BATMAN, bat_priv,
-			"Drop packet: ignoring all rebroadcast echos (sender: "
-			"%pM)\n", ethhdr->h_source);
-		return;
-	}
-
-	orig_node = get_orig_node(bat_priv, batman_packet->orig);
-	if (!orig_node)
-		return;
-
-	is_duplicate = count_real_packets(ethhdr, batman_packet, if_incoming);
-
-	if (is_duplicate == -1) {
-		bat_dbg(DBG_BATMAN, bat_priv,
-			"Drop packet: packet within seqno protection time "
-			"(sender: %pM)\n", ethhdr->h_source);
-		goto out;
-	}
-
-	if (batman_packet->tq == 0) {
-		bat_dbg(DBG_BATMAN, bat_priv,
-			"Drop packet: originator packet with tq equal 0\n");
-		goto out;
-	}
-
-	router = orig_node_get_router(orig_node);
-	if (router)
-		router_router = orig_node_get_router(router->orig_node);
-
-	/* avoid temporary routing loops */
-	if (router && router_router &&
-	    (compare_eth(router->addr, batman_packet->prev_sender)) &&
-	    !(compare_eth(batman_packet->orig, batman_packet->prev_sender)) &&
-	    (compare_eth(router->addr, router_router->addr))) {
-		bat_dbg(DBG_BATMAN, bat_priv,
-			"Drop packet: ignoring all rebroadcast packets that "
-			"may make me loop (sender: %pM)\n", ethhdr->h_source);
-		goto out;
-	}
-
-	/* if sender is a direct neighbor the sender mac equals
-	 * originator mac */
-	orig_neigh_node = (is_single_hop_neigh ?
-			   orig_node :
-			   get_orig_node(bat_priv, ethhdr->h_source));
-	if (!orig_neigh_node)
-		goto out;
-
-	orig_neigh_router = orig_node_get_router(orig_neigh_node);
-
-	/* drop packet if sender is not a direct neighbor and if we
-	 * don't route towards it */
-	if (!is_single_hop_neigh && (!orig_neigh_router)) {
-		bat_dbg(DBG_BATMAN, bat_priv,
-			"Drop packet: OGM via unknown neighbor!\n");
-		goto out_neigh;
-	}
-
-	is_bidirectional = is_bidirectional_neigh(orig_node, orig_neigh_node,
-						batman_packet, if_incoming);
-
-	bonding_save_primary(orig_node, orig_neigh_node, batman_packet);
-
-	/* update ranking if it is not a duplicate or has the same
-	 * seqno and similar ttl as the non-duplicate */
-	if (is_bidirectional &&
-	    (!is_duplicate ||
-	     ((orig_node->last_real_seqno == batman_packet->seqno) &&
-	      (orig_node->last_ttl - 3 <= batman_packet->ttl))))
-		update_orig(bat_priv, orig_node, ethhdr, batman_packet,
-			    if_incoming, tt_buff, is_duplicate);
-
-	/* is single hop (direct) neighbor */
-	if (is_single_hop_neigh) {
-
-		/* mark direct link on incoming interface */
-		schedule_forward_packet(orig_node, ethhdr, batman_packet,
-					1, if_incoming);
-
-		bat_dbg(DBG_BATMAN, bat_priv, "Forwarding packet: "
-			"rebroadcast neighbor packet with direct link flag\n");
-		goto out_neigh;
-	}
-
-	/* multihop originator */
-	if (!is_bidirectional) {
-		bat_dbg(DBG_BATMAN, bat_priv,
-			"Drop packet: not received via bidirectional link\n");
-		goto out_neigh;
-	}
-
-	if (is_duplicate) {
-		bat_dbg(DBG_BATMAN, bat_priv,
-			"Drop packet: duplicate packet received\n");
-		goto out_neigh;
-	}
-
-	bat_dbg(DBG_BATMAN, bat_priv,
-		"Forwarding packet: rebroadcast originator packet\n");
-	schedule_forward_packet(orig_node, ethhdr, batman_packet,
-				0, if_incoming);
-
-out_neigh:
-	if ((orig_neigh_node) && (!is_single_hop_neigh))
-		orig_node_free_ref(orig_neigh_node);
-out:
-	if (router)
-		neigh_node_free_ref(router);
-	if (router_router)
-		neigh_node_free_ref(router_router);
-	if (orig_neigh_router)
-		neigh_node_free_ref(orig_neigh_router);
-
-	orig_node_free_ref(orig_node);
-}
-
-int recv_bat_packet(struct sk_buff *skb, struct hard_iface *hard_iface)
+int recv_bat_ogm_packet(struct sk_buff *skb, struct hard_iface *hard_iface)
 {
 	struct ethhdr *ethhdr;
 
 	/* drop packet if it has not necessary minimum size */
-	if (unlikely(!pskb_may_pull(skb, sizeof(struct batman_packet))))
+	if (unlikely(!pskb_may_pull(skb, BATMAN_OGM_LEN)))
 		return NET_RX_DROP;
 
 	ethhdr = (struct ethhdr *)skb_mac_header(skb);
@@ -898,10 +274,7 @@ int recv_bat_packet(struct sk_buff *skb, struct hard_iface *hard_iface)
 
 	ethhdr = (struct ethhdr *)skb_mac_header(skb);
 
-	receive_aggr_bat_packet(ethhdr,
-				skb->data,
-				skb_headlen(skb),
-				hard_iface);
+	bat_ogm_receive(ethhdr, skb->data, skb_headlen(skb), hard_iface);
 
 	kfree_skb(skb);
 	return NET_RX_SUCCESS;
@@ -1243,7 +616,7 @@ int recv_tt_query(struct sk_buff *skb, struct hard_iface *recv_if)
 		}
 		break;
 	case TT_RESPONSE:
-		/* packet needs to be linearised to access the TT changes */
+		/* packet needs to be linearized to access the TT changes */
 		if (skb_linearize(skb) < 0)
 			goto out;
 
@@ -1300,7 +673,7 @@ int recv_roam_adv(struct sk_buff *skb, struct hard_iface *recv_if)
 		roam_adv_packet->client);
 
 	tt_global_add(bat_priv, orig_node, roam_adv_packet->client,
-		      atomic_read(&orig_node->last_ttvn) + 1, true);
+		      atomic_read(&orig_node->last_ttvn) + 1, true, false);
 
 	/* Roaming phase starts: I have new information but the ttvn has not
 	 * been incremented yet. This flag will make me check all the incoming
@@ -1536,7 +909,7 @@ static int check_unicast_ttvn(struct bat_priv *bat_priv,
 
 		ethhdr = (struct ethhdr *)(skb->data +
 			sizeof(struct unicast_packet));
-		orig_node = transtable_search(bat_priv, ethhdr->h_dest);
+		orig_node = transtable_search(bat_priv, NULL, ethhdr->h_dest);
 
 		if (!orig_node) {
 			if (!is_my_client(bat_priv, ethhdr->h_dest))
diff --git a/net/batman-adv/routing.h b/net/batman-adv/routing.h
index fb14e9579b1..7aaee0fb0fd 100644
--- a/net/batman-adv/routing.h
+++ b/net/batman-adv/routing.h
@@ -23,19 +23,15 @@
 #define _NET_BATMAN_ADV_ROUTING_H_
 
 void slide_own_bcast_window(struct hard_iface *hard_iface);
-void receive_bat_packet(const struct ethhdr *ethhdr,
-			struct batman_packet *batman_packet,
-			const unsigned char *tt_buff,
-			struct hard_iface *if_incoming);
-void update_routes(struct bat_priv *bat_priv, struct orig_node *orig_node,
-		   struct neigh_node *neigh_node);
+void update_route(struct bat_priv *bat_priv, struct orig_node *orig_node,
+		  struct neigh_node *neigh_node);
 int route_unicast_packet(struct sk_buff *skb, struct hard_iface *recv_if);
 int recv_icmp_packet(struct sk_buff *skb, struct hard_iface *recv_if);
 int recv_unicast_packet(struct sk_buff *skb, struct hard_iface *recv_if);
 int recv_ucast_frag_packet(struct sk_buff *skb, struct hard_iface *recv_if);
 int recv_bcast_packet(struct sk_buff *skb, struct hard_iface *recv_if);
 int recv_vis_packet(struct sk_buff *skb, struct hard_iface *recv_if);
-int recv_bat_packet(struct sk_buff *skb, struct hard_iface *recv_if);
+int recv_bat_ogm_packet(struct sk_buff *skb, struct hard_iface *recv_if);
 int recv_tt_query(struct sk_buff *skb, struct hard_iface *recv_if);
 int recv_roam_adv(struct sk_buff *skb, struct hard_iface *recv_if);
 struct neigh_node *find_router(struct bat_priv *bat_priv,
@@ -43,5 +39,12 @@ struct neigh_node *find_router(struct bat_priv *bat_priv,
 			       const struct hard_iface *recv_if);
 void bonding_candidate_del(struct orig_node *orig_node,
 			   struct neigh_node *neigh_node);
+void bonding_candidate_add(struct orig_node *orig_node,
+			   struct neigh_node *neigh_node);
+void bonding_save_primary(const struct orig_node *orig_node,
+			  struct orig_node *orig_neigh_node,
+			  const struct batman_ogm_packet *batman_ogm_packet);
+int window_protected(struct bat_priv *bat_priv, int32_t seq_num_diff,
+		     unsigned long *last_reset);
 
 #endif /* _NET_BATMAN_ADV_ROUTING_H_ */
diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
index 58d14472068..8a684eb738a 100644
--- a/net/batman-adv/send.c
+++ b/net/batman-adv/send.c
@@ -26,33 +26,12 @@
 #include "soft-interface.h"
 #include "hard-interface.h"
 #include "vis.h"
-#include "aggregation.h"
 #include "gateway_common.h"
 #include "originator.h"
+#include "bat_ogm.h"
 
 static void send_outstanding_bcast_packet(struct work_struct *work);
 
-/* apply hop penalty for a normal link */
-static uint8_t hop_penalty(uint8_t tq, const struct bat_priv *bat_priv)
-{
-	int hop_penalty = atomic_read(&bat_priv->hop_penalty);
-	return (tq * (TQ_MAX_VALUE - hop_penalty)) / (TQ_MAX_VALUE);
-}
-
-/* when do we schedule our own packet to be sent */
-static unsigned long own_send_time(const struct bat_priv *bat_priv)
-{
-	return jiffies + msecs_to_jiffies(
-		   atomic_read(&bat_priv->orig_interval) -
-		   JITTER + (random32() % 2*JITTER));
-}
-
-/* when do we schedule a forwarded packet to be sent */
-static unsigned long forward_send_time(void)
-{
-	return jiffies + msecs_to_jiffies(random32() % (JITTER/2));
-}
-
 /* send out an already prepared packet to the given address via the
  * specified batman interface */
 int send_skb_packet(struct sk_buff *skb, struct hard_iface *hard_iface,
@@ -99,141 +78,17 @@ send_skb_err:
 	return NET_XMIT_DROP;
 }
 
-/* Send a packet to a given interface */
-static void send_packet_to_if(struct forw_packet *forw_packet,
-			      struct hard_iface *hard_iface)
-{
-	struct bat_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
-	char *fwd_str;
-	uint8_t packet_num;
-	int16_t buff_pos;
-	struct batman_packet *batman_packet;
-	struct sk_buff *skb;
-
-	if (hard_iface->if_status != IF_ACTIVE)
-		return;
-
-	packet_num = 0;
-	buff_pos = 0;
-	batman_packet = (struct batman_packet *)forw_packet->skb->data;
-
-	/* adjust all flags and log packets */
-	while (aggregated_packet(buff_pos,
-				 forw_packet->packet_len,
-				 batman_packet->tt_num_changes)) {
-
-		/* we might have aggregated direct link packets with an
-		 * ordinary base packet */
-		if ((forw_packet->direct_link_flags & (1 << packet_num)) &&
-		    (forw_packet->if_incoming == hard_iface))
-			batman_packet->flags |= DIRECTLINK;
-		else
-			batman_packet->flags &= ~DIRECTLINK;
-
-		fwd_str = (packet_num > 0 ? "Forwarding" : (forw_packet->own ?
-							    "Sending own" :
-							    "Forwarding"));
-		bat_dbg(DBG_BATMAN, bat_priv,
-			"%s %spacket (originator %pM, seqno %d, TQ %d, TTL %d,"
-			" IDF %s, hvn %d) on interface %s [%pM]\n",
-			fwd_str, (packet_num > 0 ? "aggregated " : ""),
-			batman_packet->orig, ntohl(batman_packet->seqno),
-			batman_packet->tq, batman_packet->ttl,
-			(batman_packet->flags & DIRECTLINK ?
-			 "on" : "off"),
-			batman_packet->ttvn, hard_iface->net_dev->name,
-			hard_iface->net_dev->dev_addr);
-
-		buff_pos += sizeof(*batman_packet) +
-			tt_len(batman_packet->tt_num_changes);
-		packet_num++;
-		batman_packet = (struct batman_packet *)
-			(forw_packet->skb->data + buff_pos);
-	}
-
-	/* create clone because function is called more than once */
-	skb = skb_clone(forw_packet->skb, GFP_ATOMIC);
-	if (skb)
-		send_skb_packet(skb, hard_iface, broadcast_addr);
-}
-
-/* send a batman packet */
-static void send_packet(struct forw_packet *forw_packet)
-{
-	struct hard_iface *hard_iface;
-	struct net_device *soft_iface;
-	struct bat_priv *bat_priv;
-	struct hard_iface *primary_if = NULL;
-	struct batman_packet *batman_packet =
-		(struct batman_packet *)(forw_packet->skb->data);
-	int directlink = (batman_packet->flags & DIRECTLINK ? 1 : 0);
-
-	if (!forw_packet->if_incoming) {
-		pr_err("Error - can't forward packet: incoming iface not "
-		       "specified\n");
-		goto out;
-	}
-
-	soft_iface = forw_packet->if_incoming->soft_iface;
-	bat_priv = netdev_priv(soft_iface);
-
-	if (forw_packet->if_incoming->if_status != IF_ACTIVE)
-		goto out;
-
-	primary_if = primary_if_get_selected(bat_priv);
-	if (!primary_if)
-		goto out;
-
-	/* multihomed peer assumed */
-	/* non-primary OGMs are only broadcasted on their interface */
-	if ((directlink && (batman_packet->ttl == 1)) ||
-	    (forw_packet->own && (forw_packet->if_incoming != primary_if))) {
-
-		/* FIXME: what about aggregated packets ? */
-		bat_dbg(DBG_BATMAN, bat_priv,
-			"%s packet (originator %pM, seqno %d, TTL %d) "
-			"on interface %s [%pM]\n",
-			(forw_packet->own ? "Sending own" : "Forwarding"),
-			batman_packet->orig, ntohl(batman_packet->seqno),
-			batman_packet->ttl,
-			forw_packet->if_incoming->net_dev->name,
-			forw_packet->if_incoming->net_dev->dev_addr);
-
-		/* skb is only used once and than forw_packet is free'd */
-		send_skb_packet(forw_packet->skb, forw_packet->if_incoming,
-				broadcast_addr);
-		forw_packet->skb = NULL;
-
-		goto out;
-	}
-
-	/* broadcast on every interface */
-	rcu_read_lock();
-	list_for_each_entry_rcu(hard_iface, &hardif_list, list) {
-		if (hard_iface->soft_iface != soft_iface)
-			continue;
-
-		send_packet_to_if(forw_packet, hard_iface);
-	}
-	rcu_read_unlock();
-
-out:
-	if (primary_if)
-		hardif_free_ref(primary_if);
-}
-
 static void realloc_packet_buffer(struct hard_iface *hard_iface,
-				int new_len)
+				  int new_len)
 {
 	unsigned char *new_buff;
-	struct batman_packet *batman_packet;
 
 	new_buff = kmalloc(new_len, GFP_ATOMIC);
 
 	/* keep old buffer if kmalloc should fail */
 	if (new_buff) {
 		memcpy(new_buff, hard_iface->packet_buff,
-		       sizeof(*batman_packet));
+		       BATMAN_OGM_LEN);
 
 		kfree(hard_iface->packet_buff);
 		hard_iface->packet_buff = new_buff;
@@ -242,60 +97,48 @@ static void realloc_packet_buffer(struct hard_iface *hard_iface,
 }
 
 /* when calling this function (hard_iface == primary_if) has to be true */
-static void prepare_packet_buffer(struct bat_priv *bat_priv,
+static int prepare_packet_buffer(struct bat_priv *bat_priv,
 				  struct hard_iface *hard_iface)
 {
 	int new_len;
-	struct batman_packet *batman_packet;
 
-	new_len = BAT_PACKET_LEN +
+	new_len = BATMAN_OGM_LEN +
 		  tt_len((uint8_t)atomic_read(&bat_priv->tt_local_changes));
 
 	/* if we have too many changes for one packet don't send any
 	 * and wait for the tt table request which will be fragmented */
 	if (new_len > hard_iface->soft_iface->mtu)
-		new_len = BAT_PACKET_LEN;
+		new_len = BATMAN_OGM_LEN;
 
 	realloc_packet_buffer(hard_iface, new_len);
-	batman_packet = (struct batman_packet *)hard_iface->packet_buff;
 
 	atomic_set(&bat_priv->tt_crc, tt_local_crc(bat_priv));
 
 	/* reset the sending counter */
 	atomic_set(&bat_priv->tt_ogm_append_cnt, TT_OGM_APPEND_MAX);
 
-	batman_packet->tt_num_changes = tt_changes_fill_buffer(bat_priv,
-				hard_iface->packet_buff + BAT_PACKET_LEN,
-				hard_iface->packet_len - BAT_PACKET_LEN);
-
+	return tt_changes_fill_buffer(bat_priv,
+				      hard_iface->packet_buff + BATMAN_OGM_LEN,
+				      hard_iface->packet_len - BATMAN_OGM_LEN);
 }
 
-static void reset_packet_buffer(struct bat_priv *bat_priv,
-	struct hard_iface *hard_iface)
+static int reset_packet_buffer(struct bat_priv *bat_priv,
+				struct hard_iface *hard_iface)
 {
-	struct batman_packet *batman_packet;
-
-	realloc_packet_buffer(hard_iface, BAT_PACKET_LEN);
-
-	batman_packet = (struct batman_packet *)hard_iface->packet_buff;
-	batman_packet->tt_num_changes = 0;
+	realloc_packet_buffer(hard_iface, BATMAN_OGM_LEN);
+	return 0;
 }
 
-void schedule_own_packet(struct hard_iface *hard_iface)
+void schedule_bat_ogm(struct hard_iface *hard_iface)
 {
 	struct bat_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
 	struct hard_iface *primary_if;
-	unsigned long send_time;
-	struct batman_packet *batman_packet;
-	int vis_server;
+	int tt_num_changes = -1;
 
 	if ((hard_iface->if_status == IF_NOT_IN_USE) ||
 	    (hard_iface->if_status == IF_TO_BE_REMOVED))
 		return;
 
-	vis_server = atomic_read(&bat_priv->vis_mode);
-	primary_if = primary_if_get_selected(bat_priv);
-
 	/**
 	 * the interface gets activated here to avoid race conditions between
 	 * the moment of activating the interface in
@@ -306,124 +149,26 @@ void schedule_own_packet(struct hard_iface *hard_iface)
 	if (hard_iface->if_status == IF_TO_BE_ACTIVATED)
 		hard_iface->if_status = IF_ACTIVE;
 
+	primary_if = primary_if_get_selected(bat_priv);
+
 	if (hard_iface == primary_if) {
 		/* if at least one change happened */
 		if (atomic_read(&bat_priv->tt_local_changes) > 0) {
 			tt_commit_changes(bat_priv);
-			prepare_packet_buffer(bat_priv, hard_iface);
+			tt_num_changes = prepare_packet_buffer(bat_priv,
+							       hard_iface);
 		}
 
-		/* if the changes have been sent enough times */
+		/* if the changes have been sent often enough */
 		if (!atomic_dec_not_zero(&bat_priv->tt_ogm_append_cnt))
-			reset_packet_buffer(bat_priv, hard_iface);
+			tt_num_changes = reset_packet_buffer(bat_priv,
+							     hard_iface);
 	}
 
-	/**
-	 * NOTE: packet_buff might just have been re-allocated in
-	 * prepare_packet_buffer() or in reset_packet_buffer()
-	 */
-	batman_packet = (struct batman_packet *)hard_iface->packet_buff;
-
-	/* change sequence number to network order */
-	batman_packet->seqno =
-		htonl((uint32_t)atomic_read(&hard_iface->seqno));
-
-	batman_packet->ttvn = atomic_read(&bat_priv->ttvn);
-	batman_packet->tt_crc = htons((uint16_t)atomic_read(&bat_priv->tt_crc));
-
-	if (vis_server == VIS_TYPE_SERVER_SYNC)
-		batman_packet->flags |= VIS_SERVER;
-	else
-		batman_packet->flags &= ~VIS_SERVER;
-
-	if ((hard_iface == primary_if) &&
-	    (atomic_read(&bat_priv->gw_mode) == GW_MODE_SERVER))
-		batman_packet->gw_flags =
-				(uint8_t)atomic_read(&bat_priv->gw_bandwidth);
-	else
-		batman_packet->gw_flags = NO_FLAGS;
-
-	atomic_inc(&hard_iface->seqno);
-
-	slide_own_bcast_window(hard_iface);
-	send_time = own_send_time(bat_priv);
-	add_bat_packet_to_list(bat_priv,
-			       hard_iface->packet_buff,
-			       hard_iface->packet_len,
-			       hard_iface, 1, send_time);
-
 	if (primary_if)
 		hardif_free_ref(primary_if);
-}
-
-void schedule_forward_packet(struct orig_node *orig_node,
-			     const struct ethhdr *ethhdr,
-			     struct batman_packet *batman_packet,
-			     int directlink,
-			     struct hard_iface *if_incoming)
-{
-	struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
-	struct neigh_node *router;
-	uint8_t in_tq, in_ttl, tq_avg = 0;
-	unsigned long send_time;
-	uint8_t tt_num_changes;
-
-	if (batman_packet->ttl <= 1) {
-		bat_dbg(DBG_BATMAN, bat_priv, "ttl exceeded\n");
-		return;
-	}
-
-	router = orig_node_get_router(orig_node);
-
-	in_tq = batman_packet->tq;
-	in_ttl = batman_packet->ttl;
-	tt_num_changes = batman_packet->tt_num_changes;
-
-	batman_packet->ttl--;
-	memcpy(batman_packet->prev_sender, ethhdr->h_source, ETH_ALEN);
-
-	/* rebroadcast tq of our best ranking neighbor to ensure the rebroadcast
-	 * of our best tq value */
-	if (router && router->tq_avg != 0) {
-
-		/* rebroadcast ogm of best ranking neighbor as is */
-		if (!compare_eth(router->addr, ethhdr->h_source)) {
-			batman_packet->tq = router->tq_avg;
-
-			if (router->last_ttl)
-				batman_packet->ttl = router->last_ttl - 1;
-		}
-
-		tq_avg = router->tq_avg;
-	}
-
-	if (router)
-		neigh_node_free_ref(router);
-
-	/* apply hop penalty */
-	batman_packet->tq = hop_penalty(batman_packet->tq, bat_priv);
-
-	bat_dbg(DBG_BATMAN, bat_priv,
-		"Forwarding packet: tq_orig: %i, tq_avg: %i, "
-		"tq_forw: %i, ttl_orig: %i, ttl_forw: %i\n",
-		in_tq, tq_avg, batman_packet->tq, in_ttl - 1,
-		batman_packet->ttl);
-
-	batman_packet->seqno = htonl(batman_packet->seqno);
-	batman_packet->tt_crc = htons(batman_packet->tt_crc);
-
-	/* switch of primaries first hop flag when forwarding */
-	batman_packet->flags &= ~PRIMARIES_FIRST_HOP;
-	if (directlink)
-		batman_packet->flags |= DIRECTLINK;
-	else
-		batman_packet->flags &= ~DIRECTLINK;
 
-	send_time = forward_send_time();
-	add_bat_packet_to_list(bat_priv,
-			       (unsigned char *)batman_packet,
-			       sizeof(*batman_packet) + tt_len(tt_num_changes),
-			       if_incoming, 0, send_time);
+	bat_ogm_schedule(hard_iface, tt_num_changes);
 }
 
 static void forw_packet_free(struct forw_packet *forw_packet)
@@ -454,7 +199,7 @@ static void _add_bcast_packet_to_list(struct bat_priv *bat_priv,
 }
 
 /* add a broadcast packet to the queue and setup timers. broadcast packets
- * are sent multiple times to increase probability for beeing received.
+ * are sent multiple times to increase probability for being received.
  *
  * This function returns NETDEV_TX_OK on success and NETDEV_TX_BUSY on
  * errors.
@@ -557,7 +302,7 @@ out:
 	atomic_inc(&bat_priv->bcast_queue_left);
 }
 
-void send_outstanding_bat_packet(struct work_struct *work)
+void send_outstanding_bat_ogm_packet(struct work_struct *work)
 {
 	struct delayed_work *delayed_work =
 		container_of(work, struct delayed_work, work);
@@ -573,7 +318,7 @@ void send_outstanding_bat_packet(struct work_struct *work)
 	if (atomic_read(&bat_priv->mesh_state) == MESH_DEACTIVATING)
 		goto out;
 
-	send_packet(forw_packet);
+	bat_ogm_emit(forw_packet);
 
 	/**
 	 * we have to have at least one packet in the queue
@@ -581,7 +326,7 @@ void send_outstanding_bat_packet(struct work_struct *work)
 	 * shutting down
 	 */
 	if (forw_packet->own)
-		schedule_own_packet(forw_packet->if_incoming);
+		schedule_bat_ogm(forw_packet->if_incoming);
 
 out:
 	/* don't count own packet */
@@ -612,7 +357,7 @@ void purge_outstanding_packets(struct bat_priv *bat_priv,
 				  &bat_priv->forw_bcast_list, list) {
 
 		/**
-		 * if purge_outstanding_packets() was called with an argmument
+		 * if purge_outstanding_packets() was called with an argument
 		 * we delete only packets belonging to the given interface
 		 */
 		if ((hard_iface) &&
@@ -641,7 +386,7 @@ void purge_outstanding_packets(struct bat_priv *bat_priv,
 				  &bat_priv->forw_bat_list, list) {
 
 		/**
-		 * if purge_outstanding_packets() was called with an argmument
+		 * if purge_outstanding_packets() was called with an argument
 		 * we delete only packets belonging to the given interface
 		 */
 		if ((hard_iface) &&
diff --git a/net/batman-adv/send.h b/net/batman-adv/send.h
index 1f2d1e87766..c8ca3ef7385 100644
--- a/net/batman-adv/send.h
+++ b/net/batman-adv/send.h
@@ -24,15 +24,10 @@
 
 int send_skb_packet(struct sk_buff *skb, struct hard_iface *hard_iface,
 		    const uint8_t *dst_addr);
-void schedule_own_packet(struct hard_iface *hard_iface);
-void schedule_forward_packet(struct orig_node *orig_node,
-			     const struct ethhdr *ethhdr,
-			     struct batman_packet *batman_packet,
-			     int directlink,
-			     struct hard_iface *if_outgoing);
+void schedule_bat_ogm(struct hard_iface *hard_iface);
 int add_bcast_packet_to_list(struct bat_priv *bat_priv,
 			     const struct sk_buff *skb, unsigned long delay);
-void send_outstanding_bat_packet(struct work_struct *work);
+void send_outstanding_bat_ogm_packet(struct work_struct *work);
 void purge_outstanding_packets(struct bat_priv *bat_priv,
 			       const struct hard_iface *hard_iface);
 
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 3e2f91ffa4e..f9cc9572898 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -445,30 +445,31 @@ static void softif_batman_recv(struct sk_buff *skb, struct net_device *dev,
 {
 	struct bat_priv *bat_priv = netdev_priv(dev);
 	struct ethhdr *ethhdr = (struct ethhdr *)skb->data;
-	struct batman_packet *batman_packet;
+	struct batman_ogm_packet *batman_ogm_packet;
 	struct softif_neigh *softif_neigh = NULL;
 	struct hard_iface *primary_if = NULL;
 	struct softif_neigh *curr_softif_neigh = NULL;
 
 	if (ntohs(ethhdr->h_proto) == ETH_P_8021Q)
-		batman_packet = (struct batman_packet *)
+		batman_ogm_packet = (struct batman_ogm_packet *)
 					(skb->data + ETH_HLEN + VLAN_HLEN);
 	else
-		batman_packet = (struct batman_packet *)(skb->data + ETH_HLEN);
+		batman_ogm_packet = (struct batman_ogm_packet *)
+							(skb->data + ETH_HLEN);
 
-	if (batman_packet->version != COMPAT_VERSION)
+	if (batman_ogm_packet->version != COMPAT_VERSION)
 		goto out;
 
-	if (batman_packet->packet_type != BAT_PACKET)
+	if (batman_ogm_packet->packet_type != BAT_OGM)
 		goto out;
 
-	if (!(batman_packet->flags & PRIMARIES_FIRST_HOP))
+	if (!(batman_ogm_packet->flags & PRIMARIES_FIRST_HOP))
 		goto out;
 
-	if (is_my_mac(batman_packet->orig))
+	if (is_my_mac(batman_ogm_packet->orig))
 		goto out;
 
-	softif_neigh = softif_neigh_get(bat_priv, batman_packet->orig, vid);
+	softif_neigh = softif_neigh_get(bat_priv, batman_ogm_packet->orig, vid);
 	if (!softif_neigh)
 		goto out;
 
@@ -532,11 +533,11 @@ static int interface_set_mac_addr(struct net_device *dev, void *p)
 	if (!is_valid_ether_addr(addr->sa_data))
 		return -EADDRNOTAVAIL;
 
-	/* only modify transtable if it has been initialised before */
+	/* only modify transtable if it has been initialized before */
 	if (atomic_read(&bat_priv->mesh_state) == MESH_ACTIVE) {
 		tt_local_remove(bat_priv, dev->dev_addr,
 				"mac address changed", false);
-		tt_local_add(dev, addr->sa_data);
+		tt_local_add(dev, addr->sa_data, NULL_IFINDEX);
 	}
 
 	memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
@@ -565,7 +566,7 @@ static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface)
 	struct orig_node *orig_node = NULL;
 	int data_len = skb->len, ret;
 	short vid = -1;
-	bool do_bcast = false;
+	bool do_bcast;
 
 	if (atomic_read(&bat_priv->mesh_state) != MESH_ACTIVE)
 		goto dropped;
@@ -595,18 +596,19 @@ static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface)
 		goto dropped;
 
 	/* Register the client MAC in the transtable */
-	tt_local_add(soft_iface, ethhdr->h_source);
+	tt_local_add(soft_iface, ethhdr->h_source, skb->skb_iif);
 
-	orig_node = transtable_search(bat_priv, ethhdr->h_dest);
-	if (is_multicast_ether_addr(ethhdr->h_dest) ||
-				(orig_node && orig_node->gw_flags)) {
+	orig_node = transtable_search(bat_priv, ethhdr->h_source,
+				      ethhdr->h_dest);
+	do_bcast = is_multicast_ether_addr(ethhdr->h_dest);
+	if (do_bcast || (orig_node && orig_node->gw_flags)) {
 		ret = gw_is_target(bat_priv, skb, orig_node);
 
 		if (ret < 0)
 			goto dropped;
 
-		if (ret == 0)
-			do_bcast = true;
+		if (ret)
+			do_bcast = false;
 	}
 
 	/* ethernet packet should be broadcasted */
@@ -739,6 +741,9 @@ void interface_rx(struct net_device *soft_iface,
 
 	soft_iface->last_rx = jiffies;
 
+	if (is_ap_isolated(bat_priv, ethhdr->h_source, ethhdr->h_dest))
+		goto dropped;
+
 	netif_rx(skb);
 	goto out;
 
@@ -796,10 +801,8 @@ struct net_device *softif_create(const char *name)
 
 	soft_iface = alloc_netdev(sizeof(*bat_priv), name, interface_setup);
 
-	if (!soft_iface) {
-		pr_err("Unable to allocate the batman interface: %s\n", name);
+	if (!soft_iface)
 		goto out;
-	}
 
 	ret = register_netdevice(soft_iface);
 	if (ret < 0) {
@@ -812,6 +815,7 @@ struct net_device *softif_create(const char *name)
 
 	atomic_set(&bat_priv->aggregated_ogms, 1);
 	atomic_set(&bat_priv->bonding, 0);
+	atomic_set(&bat_priv->ap_isolation, 0);
 	atomic_set(&bat_priv->vis_mode, VIS_TYPE_CLIENT_UPDATE);
 	atomic_set(&bat_priv->gw_mode, GW_MODE_OFF);
 	atomic_set(&bat_priv->gw_sel_class, 20);
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index fb6931d00cd..c7aafc7c5ed 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -137,10 +137,22 @@ static void tt_local_entry_free_ref(struct tt_local_entry *tt_local_entry)
 		kfree_rcu(tt_local_entry, rcu);
 }
 
+static void tt_global_entry_free_rcu(struct rcu_head *rcu)
+{
+	struct tt_global_entry *tt_global_entry;
+
+	tt_global_entry = container_of(rcu, struct tt_global_entry, rcu);
+
+	if (tt_global_entry->orig_node)
+		orig_node_free_ref(tt_global_entry->orig_node);
+
+	kfree(tt_global_entry);
+}
+
 static void tt_global_entry_free_ref(struct tt_global_entry *tt_global_entry)
 {
 	if (atomic_dec_and_test(&tt_global_entry->refcount))
-		kfree_rcu(tt_global_entry, rcu);
+		call_rcu(&tt_global_entry->rcu, tt_global_entry_free_rcu);
 }
 
 static void tt_local_event(struct bat_priv *bat_priv, const uint8_t *addr,
@@ -183,7 +195,8 @@ static int tt_local_init(struct bat_priv *bat_priv)
 	return 1;
 }
 
-void tt_local_add(struct net_device *soft_iface, const uint8_t *addr)
+void tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
+		  int ifindex)
 {
 	struct bat_priv *bat_priv = netdev_priv(soft_iface);
 	struct tt_local_entry *tt_local_entry = NULL;
@@ -207,6 +220,8 @@ void tt_local_add(struct net_device *soft_iface, const uint8_t *addr)
 	memcpy(tt_local_entry->addr, addr, ETH_ALEN);
 	tt_local_entry->last_seen = jiffies;
 	tt_local_entry->flags = NO_FLAGS;
+	if (is_wifi_iface(ifindex))
+		tt_local_entry->flags |= TT_CLIENT_WIFI;
 	atomic_set(&tt_local_entry->refcount, 2);
 
 	/* the batman interface mac address should never be purged */
@@ -329,7 +344,7 @@ int tt_local_seq_print_text(struct seq_file *seq, void *offset)
 
 		rcu_read_lock();
 		__hlist_for_each_rcu(node, head)
-			buf_size += 21;
+			buf_size += 29;
 		rcu_read_unlock();
 	}
 
@@ -348,8 +363,19 @@ int tt_local_seq_print_text(struct seq_file *seq, void *offset)
 		rcu_read_lock();
 		hlist_for_each_entry_rcu(tt_local_entry, node,
 					 head, hash_entry) {
-			pos += snprintf(buff + pos, 22, " * %pM\n",
-					tt_local_entry->addr);
+			pos += snprintf(buff + pos, 30, " * %pM "
+					"[%c%c%c%c%c]\n",
+					tt_local_entry->addr,
+					(tt_local_entry->flags &
+					 TT_CLIENT_ROAM ? 'R' : '.'),
+					(tt_local_entry->flags &
+					 TT_CLIENT_NOPURGE ? 'P' : '.'),
+					(tt_local_entry->flags &
+					 TT_CLIENT_NEW ? 'N' : '.'),
+					(tt_local_entry->flags &
+					 TT_CLIENT_PENDING ? 'X' : '.'),
+					(tt_local_entry->flags &
+					 TT_CLIENT_WIFI ? 'W' : '.'));
 		}
 		rcu_read_unlock();
 	}
@@ -369,8 +395,8 @@ static void tt_local_set_pending(struct bat_priv *bat_priv,
 	tt_local_event(bat_priv, tt_local_entry->addr,
 		       tt_local_entry->flags | flags);
 
-	/* The local client has to be merked as "pending to be removed" but has
-	 * to be kept in the table in order to send it in an full tables
+	/* The local client has to be marked as "pending to be removed" but has
+	 * to be kept in the table in order to send it in a full table
 	 * response issued before the net ttvn increment (consistency check) */
 	tt_local_entry->flags |= TT_CLIENT_PENDING;
 }
@@ -495,7 +521,8 @@ static void tt_changes_list_free(struct bat_priv *bat_priv)
 
 /* caller must hold orig_node refcount */
 int tt_global_add(struct bat_priv *bat_priv, struct orig_node *orig_node,
-		  const unsigned char *tt_addr, uint8_t ttvn, bool roaming)
+		  const unsigned char *tt_addr, uint8_t ttvn, bool roaming,
+		  bool wifi)
 {
 	struct tt_global_entry *tt_global_entry;
 	struct orig_node *orig_node_tmp;
@@ -537,6 +564,9 @@ int tt_global_add(struct bat_priv *bat_priv, struct orig_node *orig_node,
 		tt_global_entry->roam_at = 0;
 	}
 
+	if (wifi)
+		tt_global_entry->flags |= TT_CLIENT_WIFI;
+
 	bat_dbg(DBG_TT, bat_priv,
 		"Creating new global tt entry: %pM (via %pM)\n",
 		tt_global_entry->addr, orig_node->orig);
@@ -582,8 +612,8 @@ int tt_global_seq_print_text(struct seq_file *seq, void *offset)
 	seq_printf(seq,
 		   "Globally announced TT entries received via the mesh %s\n",
 		   net_dev->name);
-	seq_printf(seq, "       %-13s %s       %-15s %s\n",
-		   "Client", "(TTVN)", "Originator", "(Curr TTVN)");
+	seq_printf(seq, "       %-13s %s       %-15s %s %s\n",
+		   "Client", "(TTVN)", "Originator", "(Curr TTVN)", "Flags");
 
 	buf_size = 1;
 	/* Estimate length for: " * xx:xx:xx:xx:xx:xx (ttvn) via
@@ -593,7 +623,7 @@ int tt_global_seq_print_text(struct seq_file *seq, void *offset)
 
 		rcu_read_lock();
 		__hlist_for_each_rcu(node, head)
-			buf_size += 59;
+			buf_size += 67;
 		rcu_read_unlock();
 	}
 
@@ -612,14 +642,20 @@ int tt_global_seq_print_text(struct seq_file *seq, void *offset)
 		rcu_read_lock();
 		hlist_for_each_entry_rcu(tt_global_entry, node,
 					 head, hash_entry) {
-			pos += snprintf(buff + pos, 61,
-					" * %pM  (%3u) via %pM     (%3u)\n",
-					tt_global_entry->addr,
+			pos += snprintf(buff + pos, 69,
+					" * %pM  (%3u) via %pM     (%3u)   "
+					"[%c%c%c]\n", tt_global_entry->addr,
 					tt_global_entry->ttvn,
 					tt_global_entry->orig_node->orig,
 					(uint8_t) atomic_read(
 						&tt_global_entry->orig_node->
-						last_ttvn));
+						last_ttvn),
+					(tt_global_entry->flags &
+					 TT_CLIENT_ROAM ? 'R' : '.'),
+					(tt_global_entry->flags &
+					 TT_CLIENT_PENDING ? 'X' : '.'),
+					(tt_global_entry->flags &
+					 TT_CLIENT_WIFI ? 'W' : '.'));
 		}
 		rcu_read_unlock();
 	}
@@ -686,6 +722,9 @@ void tt_global_del_orig(struct bat_priv *bat_priv,
 	struct hlist_head *head;
 	spinlock_t *list_lock; /* protects write access to the hash lists */
 
+	if (!hash)
+		return;
+
 	for (i = 0; i < hash->size; i++) {
 		head = &hash->table[i];
 		list_lock = &hash->list_locks[i];
@@ -774,30 +813,56 @@ static void tt_global_table_free(struct bat_priv *bat_priv)
 	bat_priv->tt_global_hash = NULL;
 }
 
+static bool _is_ap_isolated(struct tt_local_entry *tt_local_entry,
+			    struct tt_global_entry *tt_global_entry)
+{
+	bool ret = false;
+
+	if (tt_local_entry->flags & TT_CLIENT_WIFI &&
+	    tt_global_entry->flags & TT_CLIENT_WIFI)
+		ret = true;
+
+	return ret;
+}
+
 struct orig_node *transtable_search(struct bat_priv *bat_priv,
-				    const uint8_t *addr)
+				    const uint8_t *src, const uint8_t *addr)
 {
-	struct tt_global_entry *tt_global_entry;
+	struct tt_local_entry *tt_local_entry = NULL;
+	struct tt_global_entry *tt_global_entry = NULL;
 	struct orig_node *orig_node = NULL;
 
-	tt_global_entry = tt_global_hash_find(bat_priv, addr);
+	if (src && atomic_read(&bat_priv->ap_isolation)) {
+		tt_local_entry = tt_local_hash_find(bat_priv, src);
+		if (!tt_local_entry)
+			goto out;
+	}
 
+	tt_global_entry = tt_global_hash_find(bat_priv, addr);
 	if (!tt_global_entry)
 		goto out;
 
+	/* check whether the clients should not communicate due to AP
+	 * isolation */
+	if (tt_local_entry && _is_ap_isolated(tt_local_entry, tt_global_entry))
+		goto out;
+
 	if (!atomic_inc_not_zero(&tt_global_entry->orig_node->refcount))
-		goto free_tt;
+		goto out;
 
 	/* A global client marked as PENDING has already moved from that
 	 * originator */
 	if (tt_global_entry->flags & TT_CLIENT_PENDING)
-		goto free_tt;
+		goto out;
 
 	orig_node = tt_global_entry->orig_node;
 
-free_tt:
-	tt_global_entry_free_ref(tt_global_entry);
 out:
+	if (tt_global_entry)
+		tt_global_entry_free_ref(tt_global_entry);
+	if (tt_local_entry)
+		tt_local_entry_free_ref(tt_local_entry);
+
 	return orig_node;
 }
 
@@ -999,7 +1064,6 @@ static struct sk_buff *tt_response_fill_table(uint16_t tt_len, uint8_t ttvn,
 	tt_response = (struct tt_query_packet *)skb_put(skb,
 						     tt_query_size + tt_len);
 	tt_response->ttvn = ttvn;
-	tt_response->tt_data = htons(tt_tot);
 
 	tt_change = (struct tt_change *)(skb->data + tt_query_size);
 	tt_count = 0;
@@ -1025,12 +1089,17 @@ static struct sk_buff *tt_response_fill_table(uint16_t tt_len, uint8_t ttvn,
 	}
 	rcu_read_unlock();
 
+	/* store in the message the number of entries we have successfully
+	 * copied */
+	tt_response->tt_data = htons(tt_count);
+
 out:
 	return skb;
 }
 
-int send_tt_request(struct bat_priv *bat_priv, struct orig_node *dst_orig_node,
-		    uint8_t ttvn, uint16_t tt_crc, bool full_table)
+static int send_tt_request(struct bat_priv *bat_priv,
+			   struct orig_node *dst_orig_node,
+			   uint8_t ttvn, uint16_t tt_crc, bool full_table)
 {
 	struct sk_buff *skb = NULL;
 	struct tt_query_packet *tt_request;
@@ -1137,12 +1206,12 @@ static bool send_other_tt_response(struct bat_priv *bat_priv,
 	orig_ttvn = (uint8_t)atomic_read(&req_dst_orig_node->last_ttvn);
 	req_ttvn = tt_request->ttvn;
 
-	/* I have not the requested data */
+	/* I don't have the requested data */
 	if (orig_ttvn != req_ttvn ||
 	    tt_request->tt_data != req_dst_orig_node->tt_crc)
 		goto out;
 
-	/* If it has explicitly been requested the full table */
+	/* If the full table has been explicitly requested */
 	if (tt_request->flags & TT_FULL_TABLE ||
 	    !req_dst_orig_node->tt_buff)
 		full_table = true;
@@ -1363,7 +1432,9 @@ static void _tt_update_changes(struct bat_priv *bat_priv,
 				      (tt_change + i)->flags & TT_CLIENT_ROAM);
 		else
 			if (!tt_global_add(bat_priv, orig_node,
-					   (tt_change + i)->addr, ttvn, false))
+					   (tt_change + i)->addr, ttvn, false,
+					   (tt_change + i)->flags &
+							TT_CLIENT_WIFI))
 				/* In case of problem while storing a
 				 * global_entry, we stop the updating
 				 * procedure without committing the
@@ -1403,9 +1474,10 @@ out:
 		orig_node_free_ref(orig_node);
 }
 
-void tt_update_changes(struct bat_priv *bat_priv, struct orig_node *orig_node,
-		       uint16_t tt_num_changes, uint8_t ttvn,
-		       struct tt_change *tt_change)
+static void tt_update_changes(struct bat_priv *bat_priv,
+			      struct orig_node *orig_node,
+			      uint16_t tt_num_changes, uint8_t ttvn,
+			      struct tt_change *tt_change)
 {
 	_tt_update_changes(bat_priv, orig_node, tt_change, tt_num_changes,
 			   ttvn);
@@ -1668,6 +1740,8 @@ static void tt_local_reset_flags(struct bat_priv *bat_priv, uint16_t flags)
 		rcu_read_lock();
 		hlist_for_each_entry_rcu(tt_local_entry, node,
 					 head, hash_entry) {
+			if (!(tt_local_entry->flags & flags))
+				continue;
 			tt_local_entry->flags &= ~flags;
 			atomic_inc(&bat_priv->num_local_tt);
 		}
@@ -1720,3 +1794,90 @@ void tt_commit_changes(struct bat_priv *bat_priv)
 	atomic_inc(&bat_priv->ttvn);
 	bat_priv->tt_poss_change = false;
 }
+
+bool is_ap_isolated(struct bat_priv *bat_priv, uint8_t *src, uint8_t *dst)
+{
+	struct tt_local_entry *tt_local_entry = NULL;
+	struct tt_global_entry *tt_global_entry = NULL;
+	bool ret = true;
+
+	if (!atomic_read(&bat_priv->ap_isolation))
+		return false;
+
+	tt_local_entry = tt_local_hash_find(bat_priv, dst);
+	if (!tt_local_entry)
+		goto out;
+
+	tt_global_entry = tt_global_hash_find(bat_priv, src);
+	if (!tt_global_entry)
+		goto out;
+
+	if (_is_ap_isolated(tt_local_entry, tt_global_entry))
+		goto out;
+
+	ret = false;
+
+out:
+	if (tt_global_entry)
+		tt_global_entry_free_ref(tt_global_entry);
+	if (tt_local_entry)
+		tt_local_entry_free_ref(tt_local_entry);
+	return ret;
+}
+
+void tt_update_orig(struct bat_priv *bat_priv, struct orig_node *orig_node,
+		    const unsigned char *tt_buff, uint8_t tt_num_changes,
+		    uint8_t ttvn, uint16_t tt_crc)
+{
+	uint8_t orig_ttvn = (uint8_t)atomic_read(&orig_node->last_ttvn);
+	bool full_table = true;
+
+	/* the ttvn increased by one -> we can apply the attached changes */
+	if (ttvn - orig_ttvn == 1) {
+		/* the OGM could not contain the changes due to their size or
+		 * because they have already been sent TT_OGM_APPEND_MAX times.
+		 * In this case send a tt request */
+		if (!tt_num_changes) {
+			full_table = false;
+			goto request_table;
+		}
+
+		tt_update_changes(bat_priv, orig_node, tt_num_changes, ttvn,
+				  (struct tt_change *)tt_buff);
+
+		/* Even if we received the precomputed crc with the OGM, we
+		 * prefer to recompute it to spot any possible inconsistency
+		 * in the global table */
+		orig_node->tt_crc = tt_global_crc(bat_priv, orig_node);
+
+		/* The ttvn alone is not enough to guarantee consistency
+		 * because a single value could represent different states
+		 * (due to the wrap around). Thus a node has to check whether
+		 * the resulting table (after applying the changes) is still
+		 * consistent or not. E.g. a node could disconnect while its
+		 * ttvn is X and reconnect on ttvn = X + TTVN_MAX: in this case
+		 * checking the CRC value is mandatory to detect the
+		 * inconsistency */
+		if (orig_node->tt_crc != tt_crc)
+			goto request_table;
+
+		/* Roaming phase is over: tables are in sync again. I can
+		 * unset the flag */
+		orig_node->tt_poss_change = false;
+	} else {
+		/* if we missed more than one change or our tables are not
+		 * in sync anymore -> request fresh tt data */
+		if (ttvn != orig_ttvn || orig_node->tt_crc != tt_crc) {
+request_table:
+			bat_dbg(DBG_TT, bat_priv, "TT inconsistency for %pM. "
+				"Need to retrieve the correct information "
+				"(ttvn: %u last_ttvn: %u crc: %u last_crc: "
+				"%u num_changes: %u)\n", orig_node->orig, ttvn,
+				orig_ttvn, tt_crc, orig_node->tt_crc,
+				tt_num_changes);
+			send_tt_request(bat_priv, orig_node, ttvn, tt_crc,
+					full_table);
+			return;
+		}
+	}
+}
diff --git a/net/batman-adv/translation-table.h b/net/batman-adv/translation-table.h
index d4122cba53b..30efd49881a 100644
--- a/net/batman-adv/translation-table.h
+++ b/net/batman-adv/translation-table.h
@@ -26,15 +26,16 @@ int tt_len(int changes_num);
 int tt_changes_fill_buffer(struct bat_priv *bat_priv,
 			   unsigned char *buff, int buff_len);
 int tt_init(struct bat_priv *bat_priv);
-void tt_local_add(struct net_device *soft_iface, const uint8_t *addr);
+void tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
+		  int ifindex);
 void tt_local_remove(struct bat_priv *bat_priv,
 		     const uint8_t *addr, const char *message, bool roaming);
 int tt_local_seq_print_text(struct seq_file *seq, void *offset);
 void tt_global_add_orig(struct bat_priv *bat_priv, struct orig_node *orig_node,
 			const unsigned char *tt_buff, int tt_buff_len);
-int tt_global_add(struct bat_priv *bat_priv,
-		  struct orig_node *orig_node, const unsigned char *addr,
-		  uint8_t ttvn, bool roaming);
+int tt_global_add(struct bat_priv *bat_priv, struct orig_node *orig_node,
+		  const unsigned char *addr, uint8_t ttvn, bool roaming,
+		  bool wifi);
 int tt_global_seq_print_text(struct seq_file *seq, void *offset);
 void tt_global_del_orig(struct bat_priv *bat_priv,
 			struct orig_node *orig_node, const char *message);
@@ -42,25 +43,23 @@ void tt_global_del(struct bat_priv *bat_priv,
 		   struct orig_node *orig_node, const unsigned char *addr,
 		   const char *message, bool roaming);
 struct orig_node *transtable_search(struct bat_priv *bat_priv,
-				    const uint8_t *addr);
+				    const uint8_t *src, const uint8_t *addr);
 void tt_save_orig_buffer(struct bat_priv *bat_priv, struct orig_node *orig_node,
 			 const unsigned char *tt_buff, uint8_t tt_num_changes);
 uint16_t tt_local_crc(struct bat_priv *bat_priv);
 uint16_t tt_global_crc(struct bat_priv *bat_priv, struct orig_node *orig_node);
 void tt_free(struct bat_priv *bat_priv);
-int send_tt_request(struct bat_priv *bat_priv,
-		    struct orig_node *dst_orig_node, uint8_t hvn,
-		    uint16_t tt_crc, bool full_table);
 bool send_tt_response(struct bat_priv *bat_priv,
 		      struct tt_query_packet *tt_request);
-void tt_update_changes(struct bat_priv *bat_priv, struct orig_node *orig_node,
-		       uint16_t tt_num_changes, uint8_t ttvn,
-		       struct tt_change *tt_change);
 bool is_my_client(struct bat_priv *bat_priv, const uint8_t *addr);
 void handle_tt_response(struct bat_priv *bat_priv,
 			struct tt_query_packet *tt_response);
 void send_roam_adv(struct bat_priv *bat_priv, uint8_t *client,
 		   struct orig_node *orig_node);
 void tt_commit_changes(struct bat_priv *bat_priv);
+bool is_ap_isolated(struct bat_priv *bat_priv, uint8_t *src, uint8_t *dst);
+void tt_update_orig(struct bat_priv *bat_priv, struct orig_node *orig_node,
+		    const unsigned char *tt_buff, uint8_t tt_num_changes,
+		    uint8_t ttvn, uint16_t tt_crc);
 
 #endif /* _NET_BATMAN_ADV_TRANSLATION_TABLE_H_ */
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 25bd1db3537..ab8d0fe6df5 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -57,7 +57,7 @@ struct hard_iface {
  *	@batman_seqno_reset: time when the batman seqno window was reset
  *	@gw_flags: flags related to gateway class
  *	@flags: for now only VIS_SERVER flag
- *	@last_real_seqno: last and best known squence number
+ *	@last_real_seqno: last and best known sequence number
  *	@last_ttl: ttl of last received packet
  *	@last_bcast_seqno: last broadcast sequence number received by this host
  *
@@ -146,6 +146,7 @@ struct bat_priv {
 	atomic_t aggregated_ogms;	/* boolean */
 	atomic_t bonding;		/* boolean */
 	atomic_t fragmentation;		/* boolean */
+	atomic_t ap_isolation;		/* boolean */
 	atomic_t vis_mode;		/* VIS_TYPE_* */
 	atomic_t gw_mode;		/* GW_MODE_* */
 	atomic_t gw_sel_class;		/* uint */
@@ -156,7 +157,7 @@ struct bat_priv {
 	atomic_t bcast_seqno;
 	atomic_t bcast_queue_left;
 	atomic_t batman_queue_left;
-	atomic_t ttvn; /* tranlation table version number */
+	atomic_t ttvn; /* translation table version number */
 	atomic_t tt_ogm_append_cnt;
 	atomic_t tt_local_changes; /* changes registered in a OGM interval */
 	/* The tt_poss_change flag is used to detect an ongoing roaming phase.
@@ -223,22 +224,22 @@ struct socket_packet {
 
 struct tt_local_entry {
 	uint8_t addr[ETH_ALEN];
+	struct hlist_node hash_entry;
 	unsigned long last_seen;
 	uint16_t flags;
 	atomic_t refcount;
 	struct rcu_head rcu;
-	struct hlist_node hash_entry;
 };
 
 struct tt_global_entry {
 	uint8_t addr[ETH_ALEN];
+	struct hlist_node hash_entry; /* entry in the global table */
 	struct orig_node *orig_node;
 	uint8_t ttvn;
 	uint16_t flags; /* only TT_GLOBAL_ROAM is used */
 	unsigned long roam_at; /* time at which TT_GLOBAL_ROAM was set */
 	atomic_t refcount;
 	struct rcu_head rcu;
-	struct hlist_node hash_entry; /* entry in the global table */
 };
 
 struct tt_change_node {
diff --git a/net/batman-adv/unicast.c b/net/batman-adv/unicast.c
index 32b125fb3d3..07d1c1da89d 100644
--- a/net/batman-adv/unicast.c
+++ b/net/batman-adv/unicast.c
@@ -299,8 +299,10 @@ int unicast_send_skb(struct sk_buff *skb, struct bat_priv *bat_priv)
 			goto find_router;
 	}
 
-	/* check for tt host - increases orig_node refcount */
-	orig_node = transtable_search(bat_priv, ethhdr->h_dest);
+	/* check for tt host - increases orig_node refcount.
+	 * returns NULL in case of AP isolation */
+	orig_node = transtable_search(bat_priv, ethhdr->h_source,
+				      ethhdr->h_dest);
 
 find_router:
 	/**
diff --git a/net/batman-adv/unicast.h b/net/batman-adv/unicast.h
index 62f54b95462..8fd5535544b 100644
--- a/net/batman-adv/unicast.h
+++ b/net/batman-adv/unicast.h
@@ -24,7 +24,7 @@
 
 #include "packet.h"
 
-#define FRAG_TIMEOUT 10000	/* purge frag list entrys after time in ms */
+#define FRAG_TIMEOUT 10000	/* purge frag list entries after time in ms */
 #define FRAG_BUFFER_SIZE 6	/* number of list elements in buffer */
 
 int frag_reassemble_skb(struct sk_buff *skb, struct bat_priv *bat_priv,
diff --git a/net/batman-adv/vis.c b/net/batman-adv/vis.c
index 8a1b98589d7..f81a6b668b0 100644
--- a/net/batman-adv/vis.c
+++ b/net/batman-adv/vis.c
@@ -131,7 +131,7 @@ static void vis_data_insert_interface(const uint8_t *interface,
 			return;
 	}
 
-	/* its a new address, add it to the list */
+	/* it's a new address, add it to the list */
 	entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
 	if (!entry)
 		return;
@@ -465,7 +465,7 @@ static struct vis_info *add_packet(struct bat_priv *bat_priv,
 	/* try to add it */
 	hash_added = hash_add(bat_priv->vis_hash, vis_info_cmp, vis_info_choose,
 			      info, &info->hash_entry);
-	if (hash_added < 0) {
+	if (hash_added != 0) {
 		/* did not work (for some reason) */
 		kref_put(&info->refcount, free_info);
 		info = NULL;
@@ -887,10 +887,8 @@ int vis_init(struct bat_priv *bat_priv)
 	}
 
 	bat_priv->my_vis_info = kmalloc(MAX_VIS_PACKET_SIZE, GFP_ATOMIC);
-	if (!bat_priv->my_vis_info) {
-		pr_err("Can't initialize vis packet\n");
+	if (!bat_priv->my_vis_info)
 		goto err;
-	}
 
 	bat_priv->my_vis_info->skb_packet = dev_alloc_skb(sizeof(*packet) +
 							  MAX_VIS_PACKET_SIZE +
@@ -920,7 +918,7 @@ int vis_init(struct bat_priv *bat_priv)
 	hash_added = hash_add(bat_priv->vis_hash, vis_info_cmp, vis_info_choose,
 			      bat_priv->my_vis_info,
 			      &bat_priv->my_vis_info->hash_entry);
-	if (hash_added < 0) {
+	if (hash_added != 0) {
 		pr_err("Can't add own vis packet into hash\n");
 		/* not in hash, need to remove it manually. */
 		kref_put(&bat_priv->my_vis_info->refcount, free_info);