batman-adv: add the VLAN ID attribute to the TT entry
To make the translation table code VLAN-aware, each entry
must carry the VLAN ID which it belongs to. This patch adds
such attribute to the related TT structures.
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 3281a50..149ef57 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -30,6 +30,8 @@
#include "network-coding.h"
#include "fragmentation.h"
+#include <linux/if_vlan.h>
+
static int batadv_route_unicast_packet(struct sk_buff *skb,
struct batadv_hard_iface *recv_if);
@@ -724,6 +726,7 @@
* @bat_priv: the bat priv with all the soft interface information
* @unicast_packet: the unicast header to be updated
* @dst_addr: the payload destination
+ * @vid: VLAN identifier
*
* Search the translation table for dst_addr and update the unicast header with
* the new corresponding information (originator address where the destination
@@ -734,21 +737,22 @@
static bool
batadv_reroute_unicast_packet(struct batadv_priv *bat_priv,
struct batadv_unicast_packet *unicast_packet,
- uint8_t *dst_addr)
+ uint8_t *dst_addr, unsigned short vid)
{
struct batadv_orig_node *orig_node = NULL;
struct batadv_hard_iface *primary_if = NULL;
bool ret = false;
uint8_t *orig_addr, orig_ttvn;
- if (batadv_is_my_client(bat_priv, dst_addr)) {
+ if (batadv_is_my_client(bat_priv, dst_addr, vid)) {
primary_if = batadv_primary_if_get_selected(bat_priv);
if (!primary_if)
goto out;
orig_addr = primary_if->net_dev->dev_addr;
orig_ttvn = (uint8_t)atomic_read(&bat_priv->tt.vn);
} else {
- orig_node = batadv_transtable_search(bat_priv, NULL, dst_addr);
+ orig_node = batadv_transtable_search(bat_priv, NULL, dst_addr,
+ vid);
if (!orig_node)
goto out;
@@ -775,11 +779,12 @@
static int batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
struct sk_buff *skb, int hdr_len) {
- uint8_t curr_ttvn, old_ttvn;
- struct batadv_orig_node *orig_node;
- struct ethhdr *ethhdr;
- struct batadv_hard_iface *primary_if;
struct batadv_unicast_packet *unicast_packet;
+ struct batadv_hard_iface *primary_if;
+ struct batadv_orig_node *orig_node;
+ uint8_t curr_ttvn, old_ttvn;
+ struct ethhdr *ethhdr;
+ unsigned short vid;
int is_old_ttvn;
/* check if there is enough data before accessing it */
@@ -791,6 +796,7 @@
return 0;
unicast_packet = (struct batadv_unicast_packet *)skb->data;
+ vid = batadv_get_vid(skb, hdr_len);
ethhdr = (struct ethhdr *)(skb->data + hdr_len);
/* check if the destination client was served by this node and it is now
@@ -798,9 +804,9 @@
* message and that it knows the new destination in the mesh to re-route
* the packet to
*/
- if (batadv_tt_local_client_is_roaming(bat_priv, ethhdr->h_dest)) {
+ if (batadv_tt_local_client_is_roaming(bat_priv, ethhdr->h_dest, vid)) {
if (batadv_reroute_unicast_packet(bat_priv, unicast_packet,
- ethhdr->h_dest))
+ ethhdr->h_dest, vid))
net_ratelimited_function(batadv_dbg, BATADV_DBG_TT,
bat_priv,
"Rerouting unicast packet to %pM (dst=%pM): Local Roaming\n",
@@ -846,7 +852,7 @@
* target host
*/
if (batadv_reroute_unicast_packet(bat_priv, unicast_packet,
- ethhdr->h_dest)) {
+ ethhdr->h_dest, vid)) {
net_ratelimited_function(batadv_dbg, BATADV_DBG_TT, bat_priv,
"Rerouting unicast packet to %pM (dst=%pM): TTVN mismatch old_ttvn=%u new_ttvn=%u\n",
unicast_packet->dest, ethhdr->h_dest,
@@ -858,7 +864,7 @@
* currently served by this node or there is no destination at all and
* it is possible to drop the packet
*/
- if (!batadv_is_my_client(bat_priv, ethhdr->h_dest))
+ if (!batadv_is_my_client(bat_priv, ethhdr->h_dest, vid))
return 0;
/* update the header in order to let the packet be delivered to this