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

Pull networking changes from David Miller:

 1) GRE now works over ipv6, from Dmitry Kozlov.

 2) Make SCTP more network namespace aware, from Eric Biederman.

 3) TEAM driver now works with non-ethernet devices, from Jiri Pirko.

 4) Make openvswitch network namespace aware, from Pravin B Shelar.

 5) IPV6 NAT implementation, from Patrick McHardy.

 6) Server side support for TCP Fast Open, from Jerry Chu and others.

 7) Packet BPF filter supports MOD and XOR, from Eric Dumazet and Daniel
    Borkmann.

 8) Increate the loopback default MTU to 64K, from Eric Dumazet.

 9) Use a per-task rather than per-socket page fragment allocator for
    outgoing networking traffic.  This benefits processes that have very
    many mostly idle sockets, which is quite common.

    From Eric Dumazet.

10) Use up to 32K for page fragment allocations, with fallbacks to
    smaller sizes when higher order page allocations fail.  Benefits are
    a) less segments for driver to process b) less calls to page
    allocator c) less waste of space.

    From Eric Dumazet.

11) Allow GRO to be used on GRE tunnels, from Eric Dumazet.

12) VXLAN device driver, one way to handle VLAN issues such as the
    limitation of 4096 VLAN IDs yet still have some level of isolation.
    From Stephen Hemminger.

13) As usual there is a large boatload of driver changes, with the scale
    perhaps tilted towards the wireless side this time around.

Fix up various fairly trivial conflicts, mostly caused by the user
namespace changes.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1012 commits)
  hyperv: Add buffer for extended info after the RNDIS response message.
  hyperv: Report actual status in receive completion packet
  hyperv: Remove extra allocated space for recv_pkt_list elements
  hyperv: Fix page buffer handling in rndis_filter_send_request()
  hyperv: Fix the missing return value in rndis_filter_set_packet_filter()
  hyperv: Fix the max_xfer_size in RNDIS initialization
  vxlan: put UDP socket in correct namespace
  vxlan: Depend on CONFIG_INET
  sfc: Fix the reported priorities of different filter types
  sfc: Remove EFX_FILTER_FLAG_RX_OVERRIDE_IP
  sfc: Fix loopback self-test with separate_tx_channels=1
  sfc: Fix MCDI structure field lookup
  sfc: Add parentheses around use of bitfield macro arguments
  sfc: Fix null function pointer in efx_sriov_channel_type
  vxlan: virtual extensible lan
  igmp: export symbol ip_mc_leave_group
  netlink: add attributes to fdb interface
  tg3: unconditionally select HWMON support when tg3 is enabled.
  Revert "net: ti cpsw ethernet: allow reading phy interface mode from DT"
  gre: fix sparse warning
  ...

1 files changed, 256 insertions, 160 deletions

diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 99dd8f7..112edd3 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -34,6 +34,10 @@ static void batadv_send_roam_adv(struct batadv_priv *bat_priv, uint8_t *client,
 static void batadv_tt_purge(struct work_struct *work);
 static void
 batadv_tt_global_del_orig_list(struct batadv_tt_global_entry *tt_global_entry);
+static void batadv_tt_global_del(struct batadv_priv *bat_priv,
+				 struct batadv_orig_node *orig_node,
+				 const unsigned char *addr,
+				 const char *message, bool roaming);
 
 /* returns 1 if they are the same mac addr */
 static int batadv_compare_tt(const struct hlist_node *node, const void *data2)
@@ -46,8 +50,8 @@ static int batadv_compare_tt(const struct hlist_node *node, const void *data2)
 
 static void batadv_tt_start_timer(struct batadv_priv *bat_priv)
 {
-	INIT_DELAYED_WORK(&bat_priv->tt_work, batadv_tt_purge);
-	queue_delayed_work(batadv_event_workqueue, &bat_priv->tt_work,
+	INIT_DELAYED_WORK(&bat_priv->tt.work, batadv_tt_purge);
+	queue_delayed_work(batadv_event_workqueue, &bat_priv->tt.work,
 			   msecs_to_jiffies(5000));
 }
 
@@ -88,7 +92,7 @@ batadv_tt_local_hash_find(struct batadv_priv *bat_priv, const void *data)
 	struct batadv_tt_common_entry *tt_common_entry;
 	struct batadv_tt_local_entry *tt_local_entry = NULL;
 
-	tt_common_entry = batadv_tt_hash_find(bat_priv->tt_local_hash, data);
+	tt_common_entry = batadv_tt_hash_find(bat_priv->tt.local_hash, data);
 	if (tt_common_entry)
 		tt_local_entry = container_of(tt_common_entry,
 					      struct batadv_tt_local_entry,
@@ -102,7 +106,7 @@ batadv_tt_global_hash_find(struct batadv_priv *bat_priv, const void *data)
 	struct batadv_tt_common_entry *tt_common_entry;
 	struct batadv_tt_global_entry *tt_global_entry = NULL;
 
-	tt_common_entry = batadv_tt_hash_find(bat_priv->tt_global_hash, data);
+	tt_common_entry = batadv_tt_hash_find(bat_priv->tt.global_hash, data);
 	if (tt_common_entry)
 		tt_global_entry = container_of(tt_common_entry,
 					       struct batadv_tt_global_entry,
@@ -152,6 +156,8 @@ static void batadv_tt_orig_list_entry_free_rcu(struct rcu_head *rcu)
 static void
 batadv_tt_orig_list_entry_free_ref(struct batadv_tt_orig_list_entry *orig_entry)
 {
+	if (!atomic_dec_and_test(&orig_entry->refcount))
+		return;
 	/* to avoid race conditions, immediately decrease the tt counter */
 	atomic_dec(&orig_entry->orig_node->tt_size);
 	call_rcu(&orig_entry->rcu, batadv_tt_orig_list_entry_free_rcu);
@@ -175,8 +181,8 @@ static void batadv_tt_local_event(struct batadv_priv *bat_priv,
 	del_op_requested = flags & BATADV_TT_CLIENT_DEL;
 
 	/* check for ADD+DEL or DEL+ADD events */
-	spin_lock_bh(&bat_priv->tt_changes_list_lock);
-	list_for_each_entry_safe(entry, safe, &bat_priv->tt_changes_list,
+	spin_lock_bh(&bat_priv->tt.changes_list_lock);
+	list_for_each_entry_safe(entry, safe, &bat_priv->tt.changes_list,
 				 list) {
 		if (!batadv_compare_eth(entry->change.addr, addr))
 			continue;
@@ -203,15 +209,15 @@ del:
 	}
 
 	/* track the change in the OGMinterval list */
-	list_add_tail(&tt_change_node->list, &bat_priv->tt_changes_list);
+	list_add_tail(&tt_change_node->list, &bat_priv->tt.changes_list);
 
 unlock:
-	spin_unlock_bh(&bat_priv->tt_changes_list_lock);
+	spin_unlock_bh(&bat_priv->tt.changes_list_lock);
 
 	if (event_removed)
-		atomic_dec(&bat_priv->tt_local_changes);
+		atomic_dec(&bat_priv->tt.local_changes);
 	else
-		atomic_inc(&bat_priv->tt_local_changes);
+		atomic_inc(&bat_priv->tt.local_changes);
 }
 
 int batadv_tt_len(int changes_num)
@@ -221,12 +227,12 @@ int batadv_tt_len(int changes_num)
 
 static int batadv_tt_local_init(struct batadv_priv *bat_priv)
 {
-	if (bat_priv->tt_local_hash)
+	if (bat_priv->tt.local_hash)
 		return 0;
 
-	bat_priv->tt_local_hash = batadv_hash_new(1024);
+	bat_priv->tt.local_hash = batadv_hash_new(1024);
 
-	if (!bat_priv->tt_local_hash)
+	if (!bat_priv->tt.local_hash)
 		return -ENOMEM;
 
 	return 0;
@@ -258,7 +264,7 @@ void batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
 		   "Creating new local tt entry: %pM (ttvn: %d)\n", addr,
-		   (uint8_t)atomic_read(&bat_priv->ttvn));
+		   (uint8_t)atomic_read(&bat_priv->tt.vn));
 
 	memcpy(tt_local_entry->common.addr, addr, ETH_ALEN);
 	tt_local_entry->common.flags = BATADV_NO_FLAGS;
@@ -266,6 +272,7 @@ void batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
 		tt_local_entry->common.flags |= BATADV_TT_CLIENT_WIFI;
 	atomic_set(&tt_local_entry->common.refcount, 2);
 	tt_local_entry->last_seen = jiffies;
+	tt_local_entry->common.added_at = tt_local_entry->last_seen;
 
 	/* the batman interface mac address should never be purged */
 	if (batadv_compare_eth(addr, soft_iface->dev_addr))
@@ -277,7 +284,7 @@ void batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
 	 */
 	tt_local_entry->common.flags |= BATADV_TT_CLIENT_NEW;
 
-	hash_added = batadv_hash_add(bat_priv->tt_local_hash, batadv_compare_tt,
+	hash_added = batadv_hash_add(bat_priv->tt.local_hash, batadv_compare_tt,
 				     batadv_choose_orig,
 				     &tt_local_entry->common,
 				     &tt_local_entry->common.hash_entry);
@@ -348,7 +355,7 @@ static void batadv_tt_prepare_packet_buff(struct batadv_priv *bat_priv,
 	primary_if = batadv_primary_if_get_selected(bat_priv);
 
 	req_len = min_packet_len;
-	req_len += batadv_tt_len(atomic_read(&bat_priv->tt_local_changes));
+	req_len += batadv_tt_len(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
@@ -381,10 +388,10 @@ static int batadv_tt_changes_fill_buff(struct batadv_priv *bat_priv,
 	if (new_len > 0)
 		tot_changes = new_len / batadv_tt_len(1);
 
-	spin_lock_bh(&bat_priv->tt_changes_list_lock);
-	atomic_set(&bat_priv->tt_local_changes, 0);
+	spin_lock_bh(&bat_priv->tt.changes_list_lock);
+	atomic_set(&bat_priv->tt.local_changes, 0);
 
-	list_for_each_entry_safe(entry, safe, &bat_priv->tt_changes_list,
+	list_for_each_entry_safe(entry, safe, &bat_priv->tt.changes_list,
 				 list) {
 		if (count < tot_changes) {
 			memcpy(tt_buff + batadv_tt_len(count),
@@ -394,25 +401,25 @@ static int batadv_tt_changes_fill_buff(struct batadv_priv *bat_priv,
 		list_del(&entry->list);
 		kfree(entry);
 	}
-	spin_unlock_bh(&bat_priv->tt_changes_list_lock);
+	spin_unlock_bh(&bat_priv->tt.changes_list_lock);
 
 	/* Keep the buffer for possible tt_request */
-	spin_lock_bh(&bat_priv->tt_buff_lock);
-	kfree(bat_priv->tt_buff);
-	bat_priv->tt_buff_len = 0;
-	bat_priv->tt_buff = NULL;
+	spin_lock_bh(&bat_priv->tt.last_changeset_lock);
+	kfree(bat_priv->tt.last_changeset);
+	bat_priv->tt.last_changeset_len = 0;
+	bat_priv->tt.last_changeset = NULL;
 	/* check whether this new OGM has no changes due to size problems */
 	if (new_len > 0) {
 		/* if kmalloc() fails we will reply with the full table
 		 * instead of providing the diff
 		 */
-		bat_priv->tt_buff = kmalloc(new_len, GFP_ATOMIC);
-		if (bat_priv->tt_buff) {
-			memcpy(bat_priv->tt_buff, tt_buff, new_len);
-			bat_priv->tt_buff_len = new_len;
+		bat_priv->tt.last_changeset = kmalloc(new_len, GFP_ATOMIC);
+		if (bat_priv->tt.last_changeset) {
+			memcpy(bat_priv->tt.last_changeset, tt_buff, new_len);
+			bat_priv->tt.last_changeset_len = new_len;
 		}
 	}
-	spin_unlock_bh(&bat_priv->tt_buff_lock);
+	spin_unlock_bh(&bat_priv->tt.last_changeset_lock);
 
 	return count;
 }
@@ -421,7 +428,7 @@ int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset)
 {
 	struct net_device *net_dev = (struct net_device *)seq->private;
 	struct batadv_priv *bat_priv = netdev_priv(net_dev);
-	struct batadv_hashtable *hash = bat_priv->tt_local_hash;
+	struct batadv_hashtable *hash = bat_priv->tt.local_hash;
 	struct batadv_tt_common_entry *tt_common_entry;
 	struct batadv_hard_iface *primary_if;
 	struct hlist_node *node;
@@ -446,7 +453,7 @@ int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset)
 
 	seq_printf(seq,
 		   "Locally retrieved addresses (from %s) announced via TT (TTVN: %u):\n",
-		   net_dev->name, (uint8_t)atomic_read(&bat_priv->ttvn));
+		   net_dev->name, (uint8_t)atomic_read(&bat_priv->tt.vn));
 
 	for (i = 0; i < hash->size; i++) {
 		head = &hash->table[i];
@@ -544,7 +551,7 @@ static void batadv_tt_local_purge_list(struct batadv_priv *bat_priv,
 
 static void batadv_tt_local_purge(struct batadv_priv *bat_priv)
 {
-	struct batadv_hashtable *hash = bat_priv->tt_local_hash;
+	struct batadv_hashtable *hash = bat_priv->tt.local_hash;
 	struct hlist_head *head;
 	spinlock_t *list_lock; /* protects write access to the hash lists */
 	uint32_t i;
@@ -570,10 +577,10 @@ static void batadv_tt_local_table_free(struct batadv_priv *bat_priv)
 	struct hlist_head *head;
 	uint32_t i;
 
-	if (!bat_priv->tt_local_hash)
+	if (!bat_priv->tt.local_hash)
 		return;
 
-	hash = bat_priv->tt_local_hash;
+	hash = bat_priv->tt.local_hash;
 
 	for (i = 0; i < hash->size; i++) {
 		head = &hash->table[i];
@@ -593,17 +600,17 @@ static void batadv_tt_local_table_free(struct batadv_priv *bat_priv)
 
 	batadv_hash_destroy(hash);
 
-	bat_priv->tt_local_hash = NULL;
+	bat_priv->tt.local_hash = NULL;
 }
 
 static int batadv_tt_global_init(struct batadv_priv *bat_priv)
 {
-	if (bat_priv->tt_global_hash)
+	if (bat_priv->tt.global_hash)
 		return 0;
 
-	bat_priv->tt_global_hash = batadv_hash_new(1024);
+	bat_priv->tt.global_hash = batadv_hash_new(1024);
 
-	if (!bat_priv->tt_global_hash)
+	if (!bat_priv->tt.global_hash)
 		return -ENOMEM;
 
 	return 0;
@@ -613,62 +620,99 @@ static void batadv_tt_changes_list_free(struct batadv_priv *bat_priv)
 {
 	struct batadv_tt_change_node *entry, *safe;
 
-	spin_lock_bh(&bat_priv->tt_changes_list_lock);
+	spin_lock_bh(&bat_priv->tt.changes_list_lock);
 
-	list_for_each_entry_safe(entry, safe, &bat_priv->tt_changes_list,
+	list_for_each_entry_safe(entry, safe, &bat_priv->tt.changes_list,
 				 list) {
 		list_del(&entry->list);
 		kfree(entry);
 	}
 
-	atomic_set(&bat_priv->tt_local_changes, 0);
-	spin_unlock_bh(&bat_priv->tt_changes_list_lock);
+	atomic_set(&bat_priv->tt.local_changes, 0);
+	spin_unlock_bh(&bat_priv->tt.changes_list_lock);
 }
 
-/* find out if an orig_node is already in the list of a tt_global_entry.
- * returns 1 if found, 0 otherwise
+/* retrieves the orig_tt_list_entry belonging to orig_node from the
+ * batadv_tt_global_entry list
+ *
+ * returns it with an increased refcounter, NULL if not found
  */
-static bool
-batadv_tt_global_entry_has_orig(const struct batadv_tt_global_entry *entry,
-				const struct batadv_orig_node *orig_node)
+static struct batadv_tt_orig_list_entry *
+batadv_tt_global_orig_entry_find(const struct batadv_tt_global_entry *entry,
+				 const struct batadv_orig_node *orig_node)
 {
-	struct batadv_tt_orig_list_entry *tmp_orig_entry;
+	struct batadv_tt_orig_list_entry *tmp_orig_entry, *orig_entry = NULL;
 	const struct hlist_head *head;
 	struct hlist_node *node;
-	bool found = false;
 
 	rcu_read_lock();
 	head = &entry->orig_list;
 	hlist_for_each_entry_rcu(tmp_orig_entry, node, head, list) {
-		if (tmp_orig_entry->orig_node == orig_node) {
-			found = true;
-			break;
-		}
+		if (tmp_orig_entry->orig_node != orig_node)
+			continue;
+		if (!atomic_inc_not_zero(&tmp_orig_entry->refcount))
+			continue;
+
+		orig_entry = tmp_orig_entry;
+		break;
 	}
 	rcu_read_unlock();
+
+	return orig_entry;
+}
+
+/* find out if an orig_node is already in the list of a tt_global_entry.
+ * returns true if found, false otherwise
+ */
+static bool
+batadv_tt_global_entry_has_orig(const struct batadv_tt_global_entry *entry,
+				const struct batadv_orig_node *orig_node)
+{
+	struct batadv_tt_orig_list_entry *orig_entry;
+	bool found = false;
+
+	orig_entry = batadv_tt_global_orig_entry_find(entry, orig_node);
+	if (orig_entry) {
+		found = true;
+		batadv_tt_orig_list_entry_free_ref(orig_entry);
+	}
+
 	return found;
 }
 
 static void
-batadv_tt_global_add_orig_entry(struct batadv_tt_global_entry *tt_global_entry,
+batadv_tt_global_orig_entry_add(struct batadv_tt_global_entry *tt_global,
 				struct batadv_orig_node *orig_node, int ttvn)
 {
 	struct batadv_tt_orig_list_entry *orig_entry;
 
+	orig_entry = batadv_tt_global_orig_entry_find(tt_global, orig_node);
+	if (orig_entry) {
+		/* refresh the ttvn: the current value could be a bogus one that
+		 * was added during a "temporary client detection"
+		 */
+		orig_entry->ttvn = ttvn;
+		goto out;
+	}
+
 	orig_entry = kzalloc(sizeof(*orig_entry), GFP_ATOMIC);
 	if (!orig_entry)
-		return;
+		goto out;
 
 	INIT_HLIST_NODE(&orig_entry->list);
 	atomic_inc(&orig_node->refcount);
 	atomic_inc(&orig_node->tt_size);
 	orig_entry->orig_node = orig_node;
 	orig_entry->ttvn = ttvn;
+	atomic_set(&orig_entry->refcount, 2);
 
-	spin_lock_bh(&tt_global_entry->list_lock);
+	spin_lock_bh(&tt_global->list_lock);
 	hlist_add_head_rcu(&orig_entry->list,
-			   &tt_global_entry->orig_list);
-	spin_unlock_bh(&tt_global_entry->list_lock);
+			   &tt_global->orig_list);
+	spin_unlock_bh(&tt_global->list_lock);
+out:
+	if (orig_entry)
+		batadv_tt_orig_list_entry_free_ref(orig_entry);
 }
 
 /* caller must hold orig_node refcount */
@@ -695,11 +739,12 @@ int batadv_tt_global_add(struct batadv_priv *bat_priv,
 		common->flags = flags;
 		tt_global_entry->roam_at = 0;
 		atomic_set(&common->refcount, 2);
+		common->added_at = jiffies;
 
 		INIT_HLIST_HEAD(&tt_global_entry->orig_list);
 		spin_lock_init(&tt_global_entry->list_lock);
 
-		hash_added = batadv_hash_add(bat_priv->tt_global_hash,
+		hash_added = batadv_hash_add(bat_priv->tt.global_hash,
 					     batadv_compare_tt,
 					     batadv_choose_orig, common,
 					     &common->hash_entry);
@@ -709,11 +754,20 @@ int batadv_tt_global_add(struct batadv_priv *bat_priv,
 			batadv_tt_global_entry_free_ref(tt_global_entry);
 			goto out_remove;
 		}
-
-		batadv_tt_global_add_orig_entry(tt_global_entry, orig_node,
-						ttvn);
 	} else {
-		/* there is already a global entry, use this one. */
+		/* If there is already a global entry, we can use this one for
+		 * our processing.
+		 * But if we are trying to add a temporary client we can exit
+		 * directly because the temporary information should never
+		 * override any already known client state (whatever it is)
+		 */
+		if (flags & BATADV_TT_CLIENT_TEMP)
+			goto out;
+
+		/* if the client was temporary added before receiving the first
+		 * OGM announcing it, we have to clear the TEMP flag
+		 */
+		tt_global_entry->common.flags &= ~BATADV_TT_CLIENT_TEMP;
 
 		/* If there is the BATADV_TT_CLIENT_ROAM flag set, there is only
 		 * one originator left in the list and we previously received a
@@ -727,12 +781,9 @@ int batadv_tt_global_add(struct batadv_priv *bat_priv,
 			tt_global_entry->common.flags &= ~BATADV_TT_CLIENT_ROAM;
 			tt_global_entry->roam_at = 0;
 		}
-
-		if (!batadv_tt_global_entry_has_orig(tt_global_entry,
-						     orig_node))
-			batadv_tt_global_add_orig_entry(tt_global_entry,
-							orig_node, ttvn);
 	}
+	/* add the new orig_entry (if needed) or update it */
+	batadv_tt_global_orig_entry_add(tt_global_entry, orig_node, ttvn);
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
 		   "Creating new global tt entry: %pM (via %pM)\n",
@@ -771,11 +822,12 @@ batadv_tt_global_print_entry(struct batadv_tt_global_entry *tt_global_entry,
 	hlist_for_each_entry_rcu(orig_entry, node, head, list) {
 		flags = tt_common_entry->flags;
 		last_ttvn = atomic_read(&orig_entry->orig_node->last_ttvn);
-		seq_printf(seq, " * %pM  (%3u) via %pM     (%3u)   [%c%c]\n",
+		seq_printf(seq,	" * %pM  (%3u) via %pM     (%3u)   [%c%c%c]\n",
 			   tt_global_entry->common.addr, orig_entry->ttvn,
 			   orig_entry->orig_node->orig, last_ttvn,
 			   (flags & BATADV_TT_CLIENT_ROAM ? 'R' : '.'),
-			   (flags & BATADV_TT_CLIENT_WIFI ? 'W' : '.'));
+			   (flags & BATADV_TT_CLIENT_WIFI ? 'W' : '.'),
+			   (flags & BATADV_TT_CLIENT_TEMP ? 'T' : '.'));
 	}
 }
 
@@ -783,7 +835,7 @@ int batadv_tt_global_seq_print_text(struct seq_file *seq, void *offset)
 {
 	struct net_device *net_dev = (struct net_device *)seq->private;
 	struct batadv_priv *bat_priv = netdev_priv(net_dev);
-	struct batadv_hashtable *hash = bat_priv->tt_global_hash;
+	struct batadv_hashtable *hash = bat_priv->tt.global_hash;
 	struct batadv_tt_common_entry *tt_common_entry;
 	struct batadv_tt_global_entry *tt_global;
 	struct batadv_hard_iface *primary_if;
@@ -884,7 +936,7 @@ batadv_tt_global_del_struct(struct batadv_priv *bat_priv,
 		   "Deleting global tt entry %pM: %s\n",
 		   tt_global_entry->common.addr, message);
 
-	batadv_hash_remove(bat_priv->tt_global_hash, batadv_compare_tt,
+	batadv_hash_remove(bat_priv->tt.global_hash, batadv_compare_tt,
 			   batadv_choose_orig, tt_global_entry->common.addr);
 	batadv_tt_global_entry_free_ref(tt_global_entry);
 
@@ -995,7 +1047,7 @@ void batadv_tt_global_del_orig(struct batadv_priv *bat_priv,
 	struct batadv_tt_global_entry *tt_global;
 	struct batadv_tt_common_entry *tt_common_entry;
 	uint32_t i;
-	struct batadv_hashtable *hash = bat_priv->tt_global_hash;
+	struct batadv_hashtable *hash = bat_priv->tt.global_hash;
 	struct hlist_node *node, *safe;
 	struct hlist_head *head;
 	spinlock_t *list_lock; /* protects write access to the hash lists */
@@ -1030,49 +1082,63 @@ void batadv_tt_global_del_orig(struct batadv_priv *bat_priv,
 	orig_node->tt_initialised = false;
 }
 
-static void batadv_tt_global_roam_purge_list(struct batadv_priv *bat_priv,
-					     struct hlist_head *head)
+static bool batadv_tt_global_to_purge(struct batadv_tt_global_entry *tt_global,
+				      char **msg)
 {
-	struct batadv_tt_common_entry *tt_common_entry;
-	struct batadv_tt_global_entry *tt_global_entry;
-	struct hlist_node *node, *node_tmp;
-
-	hlist_for_each_entry_safe(tt_common_entry, node, node_tmp, head,
-				  hash_entry) {
-		tt_global_entry = container_of(tt_common_entry,
-					       struct batadv_tt_global_entry,
-					       common);
-		if (!(tt_global_entry->common.flags & BATADV_TT_CLIENT_ROAM))
-			continue;
-		if (!batadv_has_timed_out(tt_global_entry->roam_at,
-					  BATADV_TT_CLIENT_ROAM_TIMEOUT))
-			continue;
+	bool purge = false;
+	unsigned long roam_timeout = BATADV_TT_CLIENT_ROAM_TIMEOUT;
+	unsigned long temp_timeout = BATADV_TT_CLIENT_TEMP_TIMEOUT;
 
-		batadv_dbg(BATADV_DBG_TT, bat_priv,
-			   "Deleting global tt entry (%pM): Roaming timeout\n",
-			   tt_global_entry->common.addr);
+	if ((tt_global->common.flags & BATADV_TT_CLIENT_ROAM) &&
+	    batadv_has_timed_out(tt_global->roam_at, roam_timeout)) {
+		purge = true;
+		*msg = "Roaming timeout\n";
+	}
 
-		hlist_del_rcu(node);
-		batadv_tt_global_entry_free_ref(tt_global_entry);
+	if ((tt_global->common.flags & BATADV_TT_CLIENT_TEMP) &&
+	    batadv_has_timed_out(tt_global->common.added_at, temp_timeout)) {
+		purge = true;
+		*msg = "Temporary client timeout\n";
 	}
+
+	return purge;
 }
 
-static void batadv_tt_global_roam_purge(struct batadv_priv *bat_priv)
+static void batadv_tt_global_purge(struct batadv_priv *bat_priv)
 {
-	struct batadv_hashtable *hash = bat_priv->tt_global_hash;
+	struct batadv_hashtable *hash = bat_priv->tt.global_hash;
 	struct hlist_head *head;
+	struct hlist_node *node, *node_tmp;
 	spinlock_t *list_lock; /* protects write access to the hash lists */
 	uint32_t i;
+	char *msg = NULL;
+	struct batadv_tt_common_entry *tt_common;
+	struct batadv_tt_global_entry *tt_global;
 
 	for (i = 0; i < hash->size; i++) {
 		head = &hash->table[i];
 		list_lock = &hash->list_locks[i];
 
 		spin_lock_bh(list_lock);
-		batadv_tt_global_roam_purge_list(bat_priv, head);
+		hlist_for_each_entry_safe(tt_common, node, node_tmp, head,
+					  hash_entry) {
+			tt_global = container_of(tt_common,
+						 struct batadv_tt_global_entry,
+						 common);
+
+			if (!batadv_tt_global_to_purge(tt_global, &msg))
+				continue;
+
+			batadv_dbg(BATADV_DBG_TT, bat_priv,
+				   "Deleting global tt entry (%pM): %s\n",
+				   tt_global->common.addr, msg);
+
+			hlist_del_rcu(node);
+
+			batadv_tt_global_entry_free_ref(tt_global);
+		}
 		spin_unlock_bh(list_lock);
 	}
-
 }
 
 static void batadv_tt_global_table_free(struct batadv_priv *bat_priv)
@@ -1085,10 +1151,10 @@ static void batadv_tt_global_table_free(struct batadv_priv *bat_priv)
 	struct hlist_head *head;
 	uint32_t i;
 
-	if (!bat_priv->tt_global_hash)
+	if (!bat_priv->tt.global_hash)
 		return;
 
-	hash = bat_priv->tt_global_hash;
+	hash = bat_priv->tt.global_hash;
 
 	for (i = 0; i < hash->size; i++) {
 		head = &hash->table[i];
@@ -1108,7 +1174,7 @@ static void batadv_tt_global_table_free(struct batadv_priv *bat_priv)
 
 	batadv_hash_destroy(hash);
 
-	bat_priv->tt_global_hash = NULL;
+	bat_priv->tt.global_hash = NULL;
 }
 
 static bool
@@ -1187,7 +1253,7 @@ static uint16_t batadv_tt_global_crc(struct batadv_priv *bat_priv,
 				     struct batadv_orig_node *orig_node)
 {
 	uint16_t total = 0, total_one;
-	struct batadv_hashtable *hash = bat_priv->tt_global_hash;
+	struct batadv_hashtable *hash = bat_priv->tt.global_hash;
 	struct batadv_tt_common_entry *tt_common;
 	struct batadv_tt_global_entry *tt_global;
 	struct hlist_node *node;
@@ -1210,6 +1276,12 @@ static uint16_t batadv_tt_global_crc(struct batadv_priv *bat_priv,
 			 */
 			if (tt_common->flags & BATADV_TT_CLIENT_ROAM)
 				continue;
+			/* Temporary clients have not been announced yet, so
+			 * they have to be skipped while computing the global
+			 * crc
+			 */
+			if (tt_common->flags & BATADV_TT_CLIENT_TEMP)
+				continue;
 
 			/* find out if this global entry is announced by this
 			 * originator
@@ -1234,7 +1306,7 @@ static uint16_t batadv_tt_global_crc(struct batadv_priv *bat_priv,
 static uint16_t batadv_tt_local_crc(struct batadv_priv *bat_priv)
 {
 	uint16_t total = 0, total_one;
-	struct batadv_hashtable *hash = bat_priv->tt_local_hash;
+	struct batadv_hashtable *hash = bat_priv->tt.local_hash;
 	struct batadv_tt_common_entry *tt_common;
 	struct hlist_node *node;
 	struct hlist_head *head;
@@ -1267,14 +1339,14 @@ static void batadv_tt_req_list_free(struct batadv_priv *bat_priv)
 {
 	struct batadv_tt_req_node *node, *safe;
 
-	spin_lock_bh(&bat_priv->tt_req_list_lock);
+	spin_lock_bh(&bat_priv->tt.req_list_lock);
 
-	list_for_each_entry_safe(node, safe, &bat_priv->tt_req_list, list) {
+	list_for_each_entry_safe(node, safe, &bat_priv->tt.req_list, list) {
 		list_del(&node->list);
 		kfree(node);
 	}
 
-	spin_unlock_bh(&bat_priv->tt_req_list_lock);
+	spin_unlock_bh(&bat_priv->tt.req_list_lock);
 }
 
 static void batadv_tt_save_orig_buffer(struct batadv_priv *bat_priv,
@@ -1304,15 +1376,15 @@ static void batadv_tt_req_purge(struct batadv_priv *bat_priv)
 {
 	struct batadv_tt_req_node *node, *safe;
 
-	spin_lock_bh(&bat_priv->tt_req_list_lock);
-	list_for_each_entry_safe(node, safe, &bat_priv->tt_req_list, list) {
+	spin_lock_bh(&bat_priv->tt.req_list_lock);
+	list_for_each_entry_safe(node, safe, &bat_priv->tt.req_list, list) {
 		if (batadv_has_timed_out(node->issued_at,
 					 BATADV_TT_REQUEST_TIMEOUT)) {
 			list_del(&node->list);
 			kfree(node);
 		}
 	}
-	spin_unlock_bh(&bat_priv->tt_req_list_lock);
+	spin_unlock_bh(&bat_priv->tt.req_list_lock);
 }
 
 /* returns the pointer to the new tt_req_node struct if no request
@@ -1324,8 +1396,8 @@ batadv_new_tt_req_node(struct batadv_priv *bat_priv,
 {
 	struct batadv_tt_req_node *tt_req_node_tmp, *tt_req_node = NULL;
 
-	spin_lock_bh(&bat_priv->tt_req_list_lock);
-	list_for_each_entry(tt_req_node_tmp, &bat_priv->tt_req_list, list) {
+	spin_lock_bh(&bat_priv->tt.req_list_lock);
+	list_for_each_entry(tt_req_node_tmp, &bat_priv->tt.req_list, list) {
 		if (batadv_compare_eth(tt_req_node_tmp, orig_node) &&
 		    !batadv_has_timed_out(tt_req_node_tmp->issued_at,
 					  BATADV_TT_REQUEST_TIMEOUT))
@@ -1339,9 +1411,9 @@ batadv_new_tt_req_node(struct batadv_priv *bat_priv,
 	memcpy(tt_req_node->addr, orig_node->orig, ETH_ALEN);
 	tt_req_node->issued_at = jiffies;
 
-	list_add(&tt_req_node->list, &bat_priv->tt_req_list);
+	list_add(&tt_req_node->list, &bat_priv->tt.req_list);
 unlock:
-	spin_unlock_bh(&bat_priv->tt_req_list_lock);
+	spin_unlock_bh(&bat_priv->tt.req_list_lock);
 	return tt_req_node;
 }
 
@@ -1363,7 +1435,8 @@ static int batadv_tt_global_valid(const void *entry_ptr,
 	const struct batadv_tt_global_entry *tt_global_entry;
 	const struct batadv_orig_node *orig_node = data_ptr;
 
-	if (tt_common_entry->flags & BATADV_TT_CLIENT_ROAM)
+	if (tt_common_entry->flags & BATADV_TT_CLIENT_ROAM ||
+	    tt_common_entry->flags & BATADV_TT_CLIENT_TEMP)
 		return 0;
 
 	tt_global_entry = container_of(tt_common_entry,
@@ -1507,9 +1580,9 @@ out:
 	if (ret)
 		kfree_skb(skb);
 	if (ret && tt_req_node) {
-		spin_lock_bh(&bat_priv->tt_req_list_lock);
+		spin_lock_bh(&bat_priv->tt.req_list_lock);
 		list_del(&tt_req_node->list);
-		spin_unlock_bh(&bat_priv->tt_req_list_lock);
+		spin_unlock_bh(&bat_priv->tt.req_list_lock);
 		kfree(tt_req_node);
 	}
 	return ret;
@@ -1530,6 +1603,7 @@ batadv_send_other_tt_response(struct batadv_priv *bat_priv,
 	uint16_t tt_len, tt_tot;
 	struct sk_buff *skb = NULL;
 	struct batadv_tt_query_packet *tt_response;
+	uint8_t *packet_pos;
 	size_t len;
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
@@ -1583,8 +1657,8 @@ batadv_send_other_tt_response(struct batadv_priv *bat_priv,
 			goto unlock;
 
 		skb_reserve(skb, ETH_HLEN);
-		tt_response = (struct batadv_tt_query_packet *)skb_put(skb,
-								       len);
+		packet_pos = skb_put(skb, len);
+		tt_response = (struct batadv_tt_query_packet *)packet_pos;
 		tt_response->ttvn = req_ttvn;
 		tt_response->tt_data = htons(tt_tot);
 
@@ -1600,7 +1674,7 @@ batadv_send_other_tt_response(struct batadv_priv *bat_priv,
 		ttvn = (uint8_t)atomic_read(&req_dst_orig_node->last_ttvn);
 
 		skb = batadv_tt_response_fill_table(tt_len, ttvn,
-						    bat_priv->tt_global_hash,
+						    bat_priv->tt.global_hash,
 						    primary_if,
 						    batadv_tt_global_valid,
 						    req_dst_orig_node);
@@ -1663,6 +1737,7 @@ batadv_send_my_tt_response(struct batadv_priv *bat_priv,
 	uint16_t tt_len, tt_tot;
 	struct sk_buff *skb = NULL;
 	struct batadv_tt_query_packet *tt_response;
+	uint8_t *packet_pos;
 	size_t len;
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
@@ -1671,7 +1746,7 @@ batadv_send_my_tt_response(struct batadv_priv *bat_priv,
 		   (tt_request->flags & BATADV_TT_FULL_TABLE ? 'F' : '.'));
 
 
-	my_ttvn = (uint8_t)atomic_read(&bat_priv->ttvn);
+	my_ttvn = (uint8_t)atomic_read(&bat_priv->tt.vn);
 	req_ttvn = tt_request->ttvn;
 
 	orig_node = batadv_orig_hash_find(bat_priv, tt_request->src);
@@ -1690,7 +1765,7 @@ batadv_send_my_tt_response(struct batadv_priv *bat_priv,
 	 * is too big send the whole local translation table
 	 */
 	if (tt_request->flags & BATADV_TT_FULL_TABLE || my_ttvn != req_ttvn ||
-	    !bat_priv->tt_buff)
+	    !bat_priv->tt.last_changeset)
 		full_table = true;
 	else
 		full_table = false;
@@ -1699,8 +1774,8 @@ batadv_send_my_tt_response(struct batadv_priv *bat_priv,
 	 * I'll send only one packet with as much TT entries as I can
 	 */
 	if (!full_table) {
-		spin_lock_bh(&bat_priv->tt_buff_lock);
-		tt_len = bat_priv->tt_buff_len;
+		spin_lock_bh(&bat_priv->tt.last_changeset_lock);
+		tt_len = bat_priv->tt.last_changeset_len;
 		tt_tot = tt_len / sizeof(struct batadv_tt_change);
 
 		len = sizeof(*tt_response) + tt_len;
@@ -1709,22 +1784,22 @@ batadv_send_my_tt_response(struct batadv_priv *bat_priv,
 			goto unlock;
 
 		skb_reserve(skb, ETH_HLEN);
-		tt_response = (struct batadv_tt_query_packet *)skb_put(skb,
-								       len);
+		packet_pos = skb_put(skb, len);
+		tt_response = (struct batadv_tt_query_packet *)packet_pos;
 		tt_response->ttvn = req_ttvn;
 		tt_response->tt_data = htons(tt_tot);
 
 		tt_buff = skb->data + sizeof(*tt_response);
-		memcpy(tt_buff, bat_priv->tt_buff,
-		       bat_priv->tt_buff_len);
-		spin_unlock_bh(&bat_priv->tt_buff_lock);
+		memcpy(tt_buff, bat_priv->tt.last_changeset,
+		       bat_priv->tt.last_changeset_len);
+		spin_unlock_bh(&bat_priv->tt.last_changeset_lock);
 	} else {
-		tt_len = (uint16_t)atomic_read(&bat_priv->num_local_tt);
+		tt_len = (uint16_t)atomic_read(&bat_priv->tt.local_entry_num);
 		tt_len *= sizeof(struct batadv_tt_change);
-		ttvn = (uint8_t)atomic_read(&bat_priv->ttvn);
+		ttvn = (uint8_t)atomic_read(&bat_priv->tt.vn);
 
 		skb = batadv_tt_response_fill_table(tt_len, ttvn,
-						    bat_priv->tt_local_hash,
+						    bat_priv->tt.local_hash,
 						    primary_if,
 						    batadv_tt_local_valid_entry,
 						    NULL);
@@ -1756,7 +1831,7 @@ batadv_send_my_tt_response(struct batadv_priv *bat_priv,
 	goto out;
 
 unlock:
-	spin_unlock_bh(&bat_priv->tt_buff_lock);
+	spin_unlock_bh(&bat_priv->tt.last_changeset_lock);
 out:
 	if (orig_node)
 		batadv_orig_node_free_ref(orig_node);
@@ -1909,14 +1984,14 @@ void batadv_handle_tt_response(struct batadv_priv *bat_priv,
 	}
 
 	/* Delete the tt_req_node from pending tt_requests list */
-	spin_lock_bh(&bat_priv->tt_req_list_lock);
-	list_for_each_entry_safe(node, safe, &bat_priv->tt_req_list, list) {
+	spin_lock_bh(&bat_priv->tt.req_list_lock);
+	list_for_each_entry_safe(node, safe, &bat_priv->tt.req_list, list) {
 		if (!batadv_compare_eth(node->addr, tt_response->src))
 			continue;
 		list_del(&node->list);
 		kfree(node);
 	}
-	spin_unlock_bh(&bat_priv->tt_req_list_lock);
+	spin_unlock_bh(&bat_priv->tt.req_list_lock);
 
 	/* Recalculate the CRC for this orig_node and store it */
 	orig_node->tt_crc = batadv_tt_global_crc(bat_priv, orig_node);
@@ -1950,22 +2025,22 @@ static void batadv_tt_roam_list_free(struct batadv_priv *bat_priv)
 {
 	struct batadv_tt_roam_node *node, *safe;
 
-	spin_lock_bh(&bat_priv->tt_roam_list_lock);
+	spin_lock_bh(&bat_priv->tt.roam_list_lock);
 
-	list_for_each_entry_safe(node, safe, &bat_priv->tt_roam_list, list) {
+	list_for_each_entry_safe(node, safe, &bat_priv->tt.roam_list, list) {
 		list_del(&node->list);
 		kfree(node);
 	}
 
-	spin_unlock_bh(&bat_priv->tt_roam_list_lock);
+	spin_unlock_bh(&bat_priv->tt.roam_list_lock);
 }
 
 static void batadv_tt_roam_purge(struct batadv_priv *bat_priv)
 {
 	struct batadv_tt_roam_node *node, *safe;
 
-	spin_lock_bh(&bat_priv->tt_roam_list_lock);
-	list_for_each_entry_safe(node, safe, &bat_priv->tt_roam_list, list) {
+	spin_lock_bh(&bat_priv->tt.roam_list_lock);
+	list_for_each_entry_safe(node, safe, &bat_priv->tt.roam_list, list) {
 		if (!batadv_has_timed_out(node->first_time,
 					  BATADV_ROAMING_MAX_TIME))
 			continue;
@@ -1973,7 +2048,7 @@ static void batadv_tt_roam_purge(struct batadv_priv *bat_priv)
 		list_del(&node->list);
 		kfree(node);
 	}
-	spin_unlock_bh(&bat_priv->tt_roam_list_lock);
+	spin_unlock_bh(&bat_priv->tt.roam_list_lock);
 }
 
 /* This function checks whether the client already reached the
@@ -1988,11 +2063,11 @@ static bool batadv_tt_check_roam_count(struct batadv_priv *bat_priv,
 	struct batadv_tt_roam_node *tt_roam_node;
 	bool ret = false;
 
-	spin_lock_bh(&bat_priv->tt_roam_list_lock);
+	spin_lock_bh(&bat_priv->tt.roam_list_lock);
 	/* The new tt_req will be issued only if I'm not waiting for a
 	 * reply from the same orig_node yet
 	 */
-	list_for_each_entry(tt_roam_node, &bat_priv->tt_roam_list, list) {
+	list_for_each_entry(tt_roam_node, &bat_priv->tt.roam_list, list) {
 		if (!batadv_compare_eth(tt_roam_node->addr, client))
 			continue;
 
@@ -2017,12 +2092,12 @@ static bool batadv_tt_check_roam_count(struct batadv_priv *bat_priv,
 			   BATADV_ROAMING_MAX_COUNT - 1);
 		memcpy(tt_roam_node->addr, client, ETH_ALEN);
 
-		list_add(&tt_roam_node->list, &bat_priv->tt_roam_list);
+		list_add(&tt_roam_node->list, &bat_priv->tt.roam_list);
 		ret = true;
 	}
 
 unlock:
-	spin_unlock_bh(&bat_priv->tt_roam_list_lock);
+	spin_unlock_bh(&bat_priv->tt.roam_list_lock);
 	return ret;
 }
 
@@ -2086,13 +2161,15 @@ out:
 static void batadv_tt_purge(struct work_struct *work)
 {
 	struct delayed_work *delayed_work;
+	struct batadv_priv_tt *priv_tt;
 	struct batadv_priv *bat_priv;
 
 	delayed_work = container_of(work, struct delayed_work, work);
-	bat_priv = container_of(delayed_work, struct batadv_priv, tt_work);
+	priv_tt = container_of(delayed_work, struct batadv_priv_tt, work);
+	bat_priv = container_of(priv_tt, struct batadv_priv, tt);
 
 	batadv_tt_local_purge(bat_priv);
-	batadv_tt_global_roam_purge(bat_priv);
+	batadv_tt_global_purge(bat_priv);
 	batadv_tt_req_purge(bat_priv);
 	batadv_tt_roam_purge(bat_priv);
 
@@ -2101,7 +2178,7 @@ static void batadv_tt_purge(struct work_struct *work)
 
 void batadv_tt_free(struct batadv_priv *bat_priv)
 {
-	cancel_delayed_work_sync(&bat_priv->tt_work);
+	cancel_delayed_work_sync(&bat_priv->tt.work);
 
 	batadv_tt_local_table_free(bat_priv);
 	batadv_tt_global_table_free(bat_priv);
@@ -2109,7 +2186,7 @@ void batadv_tt_free(struct batadv_priv *bat_priv)
 	batadv_tt_changes_list_free(bat_priv);
 	batadv_tt_roam_list_free(bat_priv);
 
-	kfree(bat_priv->tt_buff);
+	kfree(bat_priv->tt.last_changeset);
 }
 
 /* This function will enable or disable the specified flags for all the entries
@@ -2153,7 +2230,7 @@ out:
 /* Purge out all the tt local entries marked with BATADV_TT_CLIENT_PENDING */
 static void batadv_tt_local_purge_pending_clients(struct batadv_priv *bat_priv)
 {
-	struct batadv_hashtable *hash = bat_priv->tt_local_hash;
+	struct batadv_hashtable *hash = bat_priv->tt.local_hash;
 	struct batadv_tt_common_entry *tt_common;
 	struct batadv_tt_local_entry *tt_local;
 	struct hlist_node *node, *node_tmp;
@@ -2178,7 +2255,7 @@ static void batadv_tt_local_purge_pending_clients(struct batadv_priv *bat_priv)
 				   "Deleting local tt entry (%pM): pending\n",
 				   tt_common->addr);
 
-			atomic_dec(&bat_priv->num_local_tt);
+			atomic_dec(&bat_priv->tt.local_entry_num);
 			hlist_del_rcu(node);
 			tt_local = container_of(tt_common,
 						struct batadv_tt_local_entry,
@@ -2196,26 +2273,26 @@ static int batadv_tt_commit_changes(struct batadv_priv *bat_priv,
 {
 	uint16_t changed_num = 0;
 
-	if (atomic_read(&bat_priv->tt_local_changes) < 1)
+	if (atomic_read(&bat_priv->tt.local_changes) < 1)
 		return -ENOENT;
 
-	changed_num = batadv_tt_set_flags(bat_priv->tt_local_hash,
+	changed_num = batadv_tt_set_flags(bat_priv->tt.local_hash,
 					  BATADV_TT_CLIENT_NEW, false);
 
 	/* all reset entries have to be counted as local entries */
-	atomic_add(changed_num, &bat_priv->num_local_tt);
+	atomic_add(changed_num, &bat_priv->tt.local_entry_num);
 	batadv_tt_local_purge_pending_clients(bat_priv);
-	bat_priv->tt_crc = batadv_tt_local_crc(bat_priv);
+	bat_priv->tt.local_crc = batadv_tt_local_crc(bat_priv);
 
 	/* Increment the TTVN only once per OGM interval */
-	atomic_inc(&bat_priv->ttvn);
+	atomic_inc(&bat_priv->tt.vn);
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
 		   "Local changes committed, updating to ttvn %u\n",
-		   (uint8_t)atomic_read(&bat_priv->ttvn));
-	bat_priv->tt_poss_change = false;
+		   (uint8_t)atomic_read(&bat_priv->tt.vn));
+	bat_priv->tt.poss_change = false;
 
 	/* reset the sending counter */
-	atomic_set(&bat_priv->tt_ogm_append_cnt, BATADV_TT_OGM_APPEND_MAX);
+	atomic_set(&bat_priv->tt.ogm_append_cnt, BATADV_TT_OGM_APPEND_MAX);
 
 	return batadv_tt_changes_fill_buff(bat_priv, packet_buff,
 					   packet_buff_len, packet_min_len);
@@ -2235,7 +2312,7 @@ int batadv_tt_append_diff(struct batadv_priv *bat_priv,
 
 	/* if the changes have been sent often enough */
 	if ((tt_num_changes < 0) &&
-	    (!batadv_atomic_dec_not_zero(&bat_priv->tt_ogm_append_cnt))) {
+	    (!batadv_atomic_dec_not_zero(&bat_priv->tt.ogm_append_cnt))) {
 		batadv_tt_realloc_packet_buff(packet_buff, packet_buff_len,
 					      packet_min_len, packet_min_len);
 		tt_num_changes = 0;
@@ -2366,3 +2443,22 @@ bool batadv_tt_global_client_is_roaming(struct batadv_priv *bat_priv,
 out:
 	return ret;
 }
+
+bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv,
+					  struct batadv_orig_node *orig_node,
+					  const unsigned char *addr)
+{
+	bool ret = false;
+
+	if (!batadv_tt_global_add(bat_priv, orig_node, addr,
+				  BATADV_TT_CLIENT_TEMP,
+				  atomic_read(&orig_node->last_ttvn)))
+		goto out;
+
+	batadv_dbg(BATADV_DBG_TT, bat_priv,
+		   "Added temporary global client (addr: %pM orig: %pM)\n",
+		   addr, orig_node->orig);
+	ret = true;
+out:
+	return ret;
+}