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

Pull networking updates from David Miller:

 1) The addition of nftables.  No longer will we need protocol aware
    firewall filtering modules, it can all live in userspace.

    At the core of nftables is a, for lack of a better term, virtual
    machine that executes byte codes to inspect packet or metadata
    (arriving interface index, etc.) and make verdict decisions.

    Besides support for loading packet contents and comparing them, the
    interpreter supports lookups in various datastructures as
    fundamental operations.  For example sets are supports, and
    therefore one could create a set of whitelist IP address entries
    which have ACCEPT verdicts attached to them, and use the appropriate
    byte codes to do such lookups.

    Since the interpreted code is composed in userspace, userspace can
    do things like optimize things before giving it to the kernel.

    Another major improvement is the capability of atomically updating
    portions of the ruleset.  In the existing netfilter implementation,
    one has to update the entire rule set in order to make a change and
    this is very expensive.

    Userspace tools exist to create nftables rules using existing
    netfilter rule sets, but both kernel implementations will need to
    co-exist for quite some time as we transition from the old to the
    new stuff.

    Kudos to Patrick McHardy, Pablo Neira Ayuso, and others who have
    worked so hard on this.

 2) Daniel Borkmann and Hannes Frederic Sowa made several improvements
    to our pseudo-random number generator, mostly used for things like
    UDP port randomization and netfitler, amongst other things.

    In particular the taus88 generater is updated to taus113, and test
    cases are added.

 3) Support 64-bit rates in HTB and TBF schedulers, from Eric Dumazet
    and Yang Yingliang.

 4) Add support for new 577xx tigon3 chips to tg3 driver, from Nithin
    Sujir.

 5) Fix two fatal flaws in TCP dynamic right sizing, from Eric Dumazet,
    Neal Cardwell, and Yuchung Cheng.

 6) Allow IP_TOS and IP_TTL to be specified in sendmsg() ancillary
    control message data, much like other socket option attributes.
    From Francesco Fusco.

 7) Allow applications to specify a cap on the rate computed
    automatically by the kernel for pacing flows, via a new
    SO_MAX_PACING_RATE socket option.  From Eric Dumazet.

 8) Make the initial autotuned send buffer sizing in TCP more closely
    reflect actual needs, from Eric Dumazet.

 9) Currently early socket demux only happens for TCP sockets, but we
    can do it for connected UDP sockets too.  Implementation from Shawn
    Bohrer.

10) Refactor inet socket demux with the goal of improving hash demux
    performance for listening sockets.  With the main goals being able
    to use RCU lookups on even request sockets, and eliminating the
    listening lock contention.  From Eric Dumazet.

11) The bonding layer has many demuxes in it's fast path, and an RCU
    conversion was started back in 3.11, several changes here extend the
    RCU usage to even more locations.  From Ding Tianhong and Wang
    Yufen, based upon suggestions by Nikolay Aleksandrov and Veaceslav
    Falico.

12) Allow stackability of segmentation offloads to, in particular, allow
    segmentation offloading over tunnels.  From Eric Dumazet.

13) Significantly improve the handling of secret keys we input into the
    various hash functions in the inet hashtables, TCP fast open, as
    well as syncookies.  From Hannes Frederic Sowa.  The key fundamental
    operation is "net_get_random_once()" which uses static keys.

    Hannes even extended this to ipv4/ipv6 fragmentation handling and
    our generic flow dissector.

14) The generic driver layer takes care now to set the driver data to
    NULL on device removal, so it's no longer necessary for drivers to
    explicitly set it to NULL any more.  Many drivers have been cleaned
    up in this way, from Jingoo Han.

15) Add a BPF based packet scheduler classifier, from Daniel Borkmann.

16) Improve CRC32 interfaces and generic SKB checksum iterators so that
    SCTP's checksumming can more cleanly be handled.  Also from Daniel
    Borkmann.

17) Add a new PMTU discovery mode, IP_PMTUDISC_INTERFACE, which forces
    using the interface MTU value.  This helps avoid PMTU attacks,
    particularly on DNS servers.  From Hannes Frederic Sowa.

18) Use generic XPS for transmit queue steering rather than internal
    (re-)implementation in virtio-net.  From Jason Wang.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1622 commits)
  random32: add test cases for taus113 implementation
  random32: upgrade taus88 generator to taus113 from errata paper
  random32: move rnd_state to linux/random.h
  random32: add prandom_reseed_late() and call when nonblocking pool becomes initialized
  random32: add periodic reseeding
  random32: fix off-by-one in seeding requirement
  PHY: Add RTL8201CP phy_driver to realtek
  xtsonic: add missing platform_set_drvdata() in xtsonic_probe()
  macmace: add missing platform_set_drvdata() in mace_probe()
  ethernet/arc/arc_emac: add missing platform_set_drvdata() in arc_emac_probe()
  ipv6: protect for_each_sk_fl_rcu in mem_check with rcu_read_lock_bh
  vlan: Implement vlan_dev_get_egress_qos_mask as an inline.
  ixgbe: add warning when max_vfs is out of range.
  igb: Update link modes display in ethtool
  netfilter: push reasm skb through instead of original frag skbs
  ip6_output: fragment outgoing reassembled skb properly
  MAINTAINERS: mv643xx_eth: take over maintainership from Lennart
  net_sched: tbf: support of 64bit rates
  ixgbe: deleting dfwd stations out of order can cause null ptr deref
  ixgbe: fix build err, num_rx_queues is only available with CONFIG_RPS
  ...

1 files changed, 177 insertions, 54 deletions

diff --git a/net/batman-adv/distributed-arp-table.c b/net/batman-adv/distributed-arp-table.c
index 06345d40158..6c8c3934bd7 100644
--- a/net/batman-adv/distributed-arp-table.c
+++ b/net/batman-adv/distributed-arp-table.c
@@ -19,6 +19,7 @@
 
 #include <linux/if_ether.h>
 #include <linux/if_arp.h>
+#include <linux/if_vlan.h>
 #include <net/arp.h>
 
 #include "main.h"
@@ -29,7 +30,6 @@
 #include "send.h"
 #include "types.h"
 #include "translation-table.h"
-#include "unicast.h"
 
 static void batadv_dat_purge(struct work_struct *work);
 
@@ -206,15 +206,11 @@ static __be32 batadv_arp_ip_dst(struct sk_buff *skb, int hdr_size)
  */
 static uint32_t batadv_hash_dat(const void *data, uint32_t size)
 {
-	const unsigned char *key = data;
 	uint32_t hash = 0;
-	size_t i;
+	const struct batadv_dat_entry *dat = data;
 
-	for (i = 0; i < 4; i++) {
-		hash += key[i];
-		hash += (hash << 10);
-		hash ^= (hash >> 6);
-	}
+	hash = batadv_hash_bytes(hash, &dat->ip, sizeof(dat->ip));
+	hash = batadv_hash_bytes(hash, &dat->vid, sizeof(dat->vid));
 
 	hash += (hash << 3);
 	hash ^= (hash >> 11);
@@ -228,21 +224,26 @@ static uint32_t batadv_hash_dat(const void *data, uint32_t size)
  * table
  * @bat_priv: the bat priv with all the soft interface information
  * @ip: search key
+ * @vid: VLAN identifier
  *
  * Returns the dat_entry if found, NULL otherwise.
  */
 static struct batadv_dat_entry *
-batadv_dat_entry_hash_find(struct batadv_priv *bat_priv, __be32 ip)
+batadv_dat_entry_hash_find(struct batadv_priv *bat_priv, __be32 ip,
+			   unsigned short vid)
 {
 	struct hlist_head *head;
-	struct batadv_dat_entry *dat_entry, *dat_entry_tmp = NULL;
+	struct batadv_dat_entry to_find, *dat_entry, *dat_entry_tmp = NULL;
 	struct batadv_hashtable *hash = bat_priv->dat.hash;
 	uint32_t index;
 
 	if (!hash)
 		return NULL;
 
-	index = batadv_hash_dat(&ip, hash->size);
+	to_find.ip = ip;
+	to_find.vid = vid;
+
+	index = batadv_hash_dat(&to_find, hash->size);
 	head = &hash->table[index];
 
 	rcu_read_lock();
@@ -266,22 +267,24 @@ batadv_dat_entry_hash_find(struct batadv_priv *bat_priv, __be32 ip)
  * @bat_priv: the bat priv with all the soft interface information
  * @ip: ipv4 to add/edit
  * @mac_addr: mac address to assign to the given ipv4
+ * @vid: VLAN identifier
  */
 static void batadv_dat_entry_add(struct batadv_priv *bat_priv, __be32 ip,
-				 uint8_t *mac_addr)
+				 uint8_t *mac_addr, unsigned short vid)
 {
 	struct batadv_dat_entry *dat_entry;
 	int hash_added;
 
-	dat_entry = batadv_dat_entry_hash_find(bat_priv, ip);
+	dat_entry = batadv_dat_entry_hash_find(bat_priv, ip, vid);
 	/* if this entry is already known, just update it */
 	if (dat_entry) {
 		if (!batadv_compare_eth(dat_entry->mac_addr, mac_addr))
 			memcpy(dat_entry->mac_addr, mac_addr, ETH_ALEN);
 		dat_entry->last_update = jiffies;
 		batadv_dbg(BATADV_DBG_DAT, bat_priv,
-			   "Entry updated: %pI4 %pM\n", &dat_entry->ip,
-			   dat_entry->mac_addr);
+			   "Entry updated: %pI4 %pM (vid: %d)\n",
+			   &dat_entry->ip, dat_entry->mac_addr,
+			   BATADV_PRINT_VID(vid));
 		goto out;
 	}
 
@@ -290,12 +293,13 @@ static void batadv_dat_entry_add(struct batadv_priv *bat_priv, __be32 ip,
 		goto out;
 
 	dat_entry->ip = ip;
+	dat_entry->vid = vid;
 	memcpy(dat_entry->mac_addr, mac_addr, ETH_ALEN);
 	dat_entry->last_update = jiffies;
 	atomic_set(&dat_entry->refcount, 2);
 
 	hash_added = batadv_hash_add(bat_priv->dat.hash, batadv_compare_dat,
-				     batadv_hash_dat, &dat_entry->ip,
+				     batadv_hash_dat, dat_entry,
 				     &dat_entry->hash_entry);
 
 	if (unlikely(hash_added != 0)) {
@@ -304,8 +308,8 @@ static void batadv_dat_entry_add(struct batadv_priv *bat_priv, __be32 ip,
 		goto out;
 	}
 
-	batadv_dbg(BATADV_DBG_DAT, bat_priv, "New entry added: %pI4 %pM\n",
-		   &dat_entry->ip, dat_entry->mac_addr);
+	batadv_dbg(BATADV_DBG_DAT, bat_priv, "New entry added: %pI4 %pM (vid: %d)\n",
+		   &dat_entry->ip, dat_entry->mac_addr, BATADV_PRINT_VID(vid));
 
 out:
 	if (dat_entry)
@@ -419,6 +423,10 @@ static bool batadv_is_orig_node_eligible(struct batadv_dat_candidate *res,
 	bool ret = false;
 	int j;
 
+	/* check if orig node candidate is running DAT */
+	if (!(candidate->capabilities & BATADV_ORIG_CAPA_HAS_DAT))
+		goto out;
+
 	/* Check if this node has already been selected... */
 	for (j = 0; j < select; j++)
 		if (res[j].orig_node == candidate)
@@ -588,9 +596,9 @@ static bool batadv_dat_send_data(struct batadv_priv *bat_priv,
 			goto free_orig;
 
 		tmp_skb = pskb_copy(skb, GFP_ATOMIC);
-		if (!batadv_unicast_4addr_prepare_skb(bat_priv, tmp_skb,
-						      cand[i].orig_node,
-						      packet_subtype)) {
+		if (!batadv_send_skb_prepare_unicast_4addr(bat_priv, tmp_skb,
+							   cand[i].orig_node,
+							   packet_subtype)) {
 			kfree_skb(tmp_skb);
 			goto free_neigh;
 		}
@@ -626,6 +634,59 @@ out:
 }
 
 /**
+ * batadv_dat_tvlv_container_update - update the dat tvlv container after dat
+ *  setting change
+ * @bat_priv: the bat priv with all the soft interface information
+ */
+static void batadv_dat_tvlv_container_update(struct batadv_priv *bat_priv)
+{
+	char dat_mode;
+
+	dat_mode = atomic_read(&bat_priv->distributed_arp_table);
+
+	switch (dat_mode) {
+	case 0:
+		batadv_tvlv_container_unregister(bat_priv, BATADV_TVLV_DAT, 1);
+		break;
+	case 1:
+		batadv_tvlv_container_register(bat_priv, BATADV_TVLV_DAT, 1,
+					       NULL, 0);
+		break;
+	}
+}
+
+/**
+ * batadv_dat_status_update - update the dat tvlv container after dat
+ *  setting change
+ * @net_dev: the soft interface net device
+ */
+void batadv_dat_status_update(struct net_device *net_dev)
+{
+	struct batadv_priv *bat_priv = netdev_priv(net_dev);
+	batadv_dat_tvlv_container_update(bat_priv);
+}
+
+/**
+ * batadv_gw_tvlv_ogm_handler_v1 - process incoming dat tvlv container
+ * @bat_priv: the bat priv with all the soft interface information
+ * @orig: the orig_node of the ogm
+ * @flags: flags indicating the tvlv state (see batadv_tvlv_handler_flags)
+ * @tvlv_value: tvlv buffer containing the gateway data
+ * @tvlv_value_len: tvlv buffer length
+ */
+static void batadv_dat_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv,
+					   struct batadv_orig_node *orig,
+					   uint8_t flags,
+					   void *tvlv_value,
+					   uint16_t tvlv_value_len)
+{
+	if (flags & BATADV_TVLV_HANDLER_OGM_CIFNOTFND)
+		orig->capabilities &= ~BATADV_ORIG_CAPA_HAS_DAT;
+	else
+		orig->capabilities |= BATADV_ORIG_CAPA_HAS_DAT;
+}
+
+/**
  * batadv_dat_hash_free - free the local DAT hash table
  * @bat_priv: the bat priv with all the soft interface information
  */
@@ -657,6 +718,10 @@ int batadv_dat_init(struct batadv_priv *bat_priv)
 
 	batadv_dat_start_timer(bat_priv);
 
+	batadv_tvlv_handler_register(bat_priv, batadv_dat_tvlv_ogm_handler_v1,
+				     NULL, BATADV_TVLV_DAT, 1,
+				     BATADV_TVLV_HANDLER_OGM_CIFNOTFND);
+	batadv_dat_tvlv_container_update(bat_priv);
 	return 0;
 }
 
@@ -666,6 +731,9 @@ int batadv_dat_init(struct batadv_priv *bat_priv)
  */
 void batadv_dat_free(struct batadv_priv *bat_priv)
 {
+	batadv_tvlv_container_unregister(bat_priv, BATADV_TVLV_DAT, 1);
+	batadv_tvlv_handler_unregister(bat_priv, BATADV_TVLV_DAT, 1);
+
 	cancel_delayed_work_sync(&bat_priv->dat.work);
 
 	batadv_dat_hash_free(bat_priv);
@@ -693,8 +761,8 @@ int batadv_dat_cache_seq_print_text(struct seq_file *seq, void *offset)
 		goto out;
 
 	seq_printf(seq, "Distributed ARP Table (%s):\n", net_dev->name);
-	seq_printf(seq, "          %-7s          %-13s %5s\n", "IPv4", "MAC",
-		   "last-seen");
+	seq_printf(seq, "          %-7s          %-9s %4s %11s\n", "IPv4",
+		   "MAC", "VID", "last-seen");
 
 	for (i = 0; i < hash->size; i++) {
 		head = &hash->table[i];
@@ -707,8 +775,9 @@ int batadv_dat_cache_seq_print_text(struct seq_file *seq, void *offset)
 			last_seen_msecs = last_seen_msecs % 60000;
 			last_seen_secs = last_seen_msecs / 1000;
 
-			seq_printf(seq, " * %15pI4 %14pM %6i:%02i\n",
+			seq_printf(seq, " * %15pI4 %14pM %4i %6i:%02i\n",
 				   &dat_entry->ip, dat_entry->mac_addr,
+				   BATADV_PRINT_VID(dat_entry->vid),
 				   last_seen_mins, last_seen_secs);
 		}
 		rcu_read_unlock();
@@ -795,6 +864,31 @@ out:
 }
 
 /**
+ * batadv_dat_get_vid - extract the VLAN identifier from skb if any
+ * @skb: the buffer containing the packet to extract the VID from
+ * @hdr_size: the size of the batman-adv header encapsulating the packet
+ *
+ * If the packet embedded in the skb is vlan tagged this function returns the
+ * VID with the BATADV_VLAN_HAS_TAG flag. Otherwise BATADV_NO_FLAGS is returned.
+ */
+static unsigned short batadv_dat_get_vid(struct sk_buff *skb, int *hdr_size)
+{
+	unsigned short vid;
+
+	vid = batadv_get_vid(skb, *hdr_size);
+
+	/* ARP parsing functions jump forward of hdr_size + ETH_HLEN.
+	 * If the header contained in the packet is a VLAN one (which is longer)
+	 * hdr_size is updated so that the functions will still skip the
+	 * correct amount of bytes.
+	 */
+	if (vid & BATADV_VLAN_HAS_TAG)
+		*hdr_size += VLAN_HLEN;
+
+	return vid;
+}
+
+/**
  * batadv_dat_snoop_outgoing_arp_request - snoop the ARP request and try to
  * answer using DAT
  * @bat_priv: the bat priv with all the soft interface information
@@ -813,26 +907,31 @@ bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv,
 	bool ret = false;
 	struct batadv_dat_entry *dat_entry = NULL;
 	struct sk_buff *skb_new;
+	int hdr_size = 0;
+	unsigned short vid;
 
 	if (!atomic_read(&bat_priv->distributed_arp_table))
 		goto out;
 
-	type = batadv_arp_get_type(bat_priv, skb, 0);
+	vid = batadv_dat_get_vid(skb, &hdr_size);
+
+	type = batadv_arp_get_type(bat_priv, skb, hdr_size);
 	/* If the node gets an ARP_REQUEST it has to send a DHT_GET unicast
 	 * message to the selected DHT candidates
 	 */
 	if (type != ARPOP_REQUEST)
 		goto out;
 
-	batadv_dbg_arp(bat_priv, skb, type, 0, "Parsing outgoing ARP REQUEST");
+	batadv_dbg_arp(bat_priv, skb, type, hdr_size,
+		       "Parsing outgoing ARP REQUEST");
 
-	ip_src = batadv_arp_ip_src(skb, 0);
-	hw_src = batadv_arp_hw_src(skb, 0);
-	ip_dst = batadv_arp_ip_dst(skb, 0);
+	ip_src = batadv_arp_ip_src(skb, hdr_size);
+	hw_src = batadv_arp_hw_src(skb, hdr_size);
+	ip_dst = batadv_arp_ip_dst(skb, hdr_size);
 
-	batadv_dat_entry_add(bat_priv, ip_src, hw_src);
+	batadv_dat_entry_add(bat_priv, ip_src, hw_src, vid);
 
-	dat_entry = batadv_dat_entry_hash_find(bat_priv, ip_dst);
+	dat_entry = batadv_dat_entry_hash_find(bat_priv, ip_dst, vid);
 	if (dat_entry) {
 		/* If the ARP request is destined for a local client the local
 		 * client will answer itself. DAT would only generate a
@@ -842,7 +941,8 @@ bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv,
 		 * additional DAT answer may trigger kernel warnings about
 		 * a packet coming from the wrong port.
 		 */
-		if (batadv_is_my_client(bat_priv, dat_entry->mac_addr)) {
+		if (batadv_is_my_client(bat_priv, dat_entry->mac_addr,
+					BATADV_NO_FLAGS)) {
 			ret = true;
 			goto out;
 		}
@@ -853,11 +953,15 @@ bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv,
 		if (!skb_new)
 			goto out;
 
+		if (vid & BATADV_VLAN_HAS_TAG)
+			skb_new = vlan_insert_tag(skb_new, htons(ETH_P_8021Q),
+						  vid & VLAN_VID_MASK);
+
 		skb_reset_mac_header(skb_new);
 		skb_new->protocol = eth_type_trans(skb_new,
 						   bat_priv->soft_iface);
 		bat_priv->stats.rx_packets++;
-		bat_priv->stats.rx_bytes += skb->len + ETH_HLEN;
+		bat_priv->stats.rx_bytes += skb->len + ETH_HLEN + hdr_size;
 		bat_priv->soft_iface->last_rx = jiffies;
 
 		netif_rx(skb_new);
@@ -892,11 +996,14 @@ bool batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv,
 	struct sk_buff *skb_new;
 	struct batadv_dat_entry *dat_entry = NULL;
 	bool ret = false;
+	unsigned short vid;
 	int err;
 
 	if (!atomic_read(&bat_priv->distributed_arp_table))
 		goto out;
 
+	vid = batadv_dat_get_vid(skb, &hdr_size);
+
 	type = batadv_arp_get_type(bat_priv, skb, hdr_size);
 	if (type != ARPOP_REQUEST)
 		goto out;
@@ -908,9 +1015,9 @@ bool batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv,
 	batadv_dbg_arp(bat_priv, skb, type, hdr_size,
 		       "Parsing incoming ARP REQUEST");
 
-	batadv_dat_entry_add(bat_priv, ip_src, hw_src);
+	batadv_dat_entry_add(bat_priv, ip_src, hw_src, vid);
 
-	dat_entry = batadv_dat_entry_hash_find(bat_priv, ip_dst);
+	dat_entry = batadv_dat_entry_hash_find(bat_priv, ip_dst, vid);
 	if (!dat_entry)
 		goto out;
 
@@ -921,17 +1028,22 @@ bool batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv,
 	if (!skb_new)
 		goto out;
 
+	if (vid & BATADV_VLAN_HAS_TAG)
+		skb_new = vlan_insert_tag(skb_new, htons(ETH_P_8021Q),
+					  vid & VLAN_VID_MASK);
+
 	/* To preserve backwards compatibility, the node has choose the outgoing
 	 * format based on the incoming request packet type. The assumption is
 	 * that a node not using the 4addr packet format doesn't support it.
 	 */
 	if (hdr_size == sizeof(struct batadv_unicast_4addr_packet))
-		err = batadv_unicast_4addr_send_skb(bat_priv, skb_new,
-						    BATADV_P_DAT_CACHE_REPLY);
+		err = batadv_send_skb_via_tt_4addr(bat_priv, skb_new,
+						   BATADV_P_DAT_CACHE_REPLY,
+						   vid);
 	else
-		err = batadv_unicast_send_skb(bat_priv, skb_new);
+		err = batadv_send_skb_via_tt(bat_priv, skb_new, vid);
 
-	if (!err) {
+	if (err != NET_XMIT_DROP) {
 		batadv_inc_counter(bat_priv, BATADV_CNT_DAT_CACHED_REPLY_TX);
 		ret = true;
 	}
@@ -954,23 +1066,28 @@ void batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv,
 	uint16_t type;
 	__be32 ip_src, ip_dst;
 	uint8_t *hw_src, *hw_dst;
+	int hdr_size = 0;
+	unsigned short vid;
 
 	if (!atomic_read(&bat_priv->distributed_arp_table))
 		return;
 
-	type = batadv_arp_get_type(bat_priv, skb, 0);
+	vid = batadv_dat_get_vid(skb, &hdr_size);
+
+	type = batadv_arp_get_type(bat_priv, skb, hdr_size);
 	if (type != ARPOP_REPLY)
 		return;
 
-	batadv_dbg_arp(bat_priv, skb, type, 0, "Parsing outgoing ARP REPLY");
+	batadv_dbg_arp(bat_priv, skb, type, hdr_size,
+		       "Parsing outgoing ARP REPLY");
 
-	hw_src = batadv_arp_hw_src(skb, 0);
-	ip_src = batadv_arp_ip_src(skb, 0);
-	hw_dst = batadv_arp_hw_dst(skb, 0);
-	ip_dst = batadv_arp_ip_dst(skb, 0);
+	hw_src = batadv_arp_hw_src(skb, hdr_size);
+	ip_src = batadv_arp_ip_src(skb, hdr_size);
+	hw_dst = batadv_arp_hw_dst(skb, hdr_size);
+	ip_dst = batadv_arp_ip_dst(skb, hdr_size);
 
-	batadv_dat_entry_add(bat_priv, ip_src, hw_src);
-	batadv_dat_entry_add(bat_priv, ip_dst, hw_dst);
+	batadv_dat_entry_add(bat_priv, ip_src, hw_src, vid);
+	batadv_dat_entry_add(bat_priv, ip_dst, hw_dst, vid);
 
 	/* Send the ARP reply to the candidates for both the IP addresses that
 	 * the node obtained from the ARP reply
@@ -992,10 +1109,13 @@ bool batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv,
 	__be32 ip_src, ip_dst;
 	uint8_t *hw_src, *hw_dst;
 	bool ret = false;
+	unsigned short vid;
 
 	if (!atomic_read(&bat_priv->distributed_arp_table))
 		goto out;
 
+	vid = batadv_dat_get_vid(skb, &hdr_size);
+
 	type = batadv_arp_get_type(bat_priv, skb, hdr_size);
 	if (type != ARPOP_REPLY)
 		goto out;
@@ -1011,13 +1131,13 @@ bool batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv,
 	/* Update our internal cache with both the IP addresses the node got
 	 * within the ARP reply
 	 */
-	batadv_dat_entry_add(bat_priv, ip_src, hw_src);
-	batadv_dat_entry_add(bat_priv, ip_dst, hw_dst);
+	batadv_dat_entry_add(bat_priv, ip_src, hw_src, vid);
+	batadv_dat_entry_add(bat_priv, ip_dst, hw_dst, vid);
 
 	/* if this REPLY is directed to a client of mine, let's deliver the
 	 * packet to the interface
 	 */
-	ret = !batadv_is_my_client(bat_priv, hw_dst);
+	ret = !batadv_is_my_client(bat_priv, hw_dst, vid);
 out:
 	if (ret)
 		kfree_skb(skb);
@@ -1040,7 +1160,8 @@ bool batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv,
 	__be32 ip_dst;
 	struct batadv_dat_entry *dat_entry = NULL;
 	bool ret = false;
-	const size_t bcast_len = sizeof(struct batadv_bcast_packet);
+	int hdr_size = sizeof(struct batadv_bcast_packet);
+	unsigned short vid;
 
 	if (!atomic_read(&bat_priv->distributed_arp_table))
 		goto out;
@@ -1051,12 +1172,14 @@ bool batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv,
 	if (forw_packet->num_packets)
 		goto out;
 
-	type = batadv_arp_get_type(bat_priv, forw_packet->skb, bcast_len);
+	vid = batadv_dat_get_vid(forw_packet->skb, &hdr_size);
+
+	type = batadv_arp_get_type(bat_priv, forw_packet->skb, hdr_size);
 	if (type != ARPOP_REQUEST)
 		goto out;
 
-	ip_dst = batadv_arp_ip_dst(forw_packet->skb, bcast_len);
-	dat_entry = batadv_dat_entry_hash_find(bat_priv, ip_dst);
+	ip_dst = batadv_arp_ip_dst(forw_packet->skb, hdr_size);
+	dat_entry = batadv_dat_entry_hash_find(bat_priv, ip_dst, vid);
 	/* check if the node already got this entry */
 	if (!dat_entry) {
 		batadv_dbg(BATADV_DBG_DAT, bat_priv,