From bbb877ed777236669ed14b5957ae72117f3b3129 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Tue, 4 Jun 2013 12:11:42 +0200
Subject: [PATCH] batman-adv: make the GW module correctly talk to the new
VLAN-TT
The gateway code is now adapted in order to correctly
interact with the Translation Table component by using the
vlan ID
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
net/batman-adv/gateway_client.c | 21 ++++++++++++++++++---
1 file changed, 18 insertions(+), 3 deletions(-)
diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
index a9209466ddaf5..4ed410f73de49 100644
--- a/net/batman-adv/gateway_client.c
+++ b/net/batman-adv/gateway_client.c
@@ -726,7 +726,20 @@ bool batadv_gw_is_dhcp_target(struct sk_buff *skb, unsigned int *header_len)
return true;
}
-/* this call might reallocate skb data */
+/**
+ * batadv_gw_out_of_range - check if the dhcp request destination is the best gw
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the outgoing packet
+ *
+ * Check if the skb is a DHCP request and if it is sent to the current best GW
+ * server. Due to topology changes it may be the case that the GW server
+ * previously selected is not the best one anymore.
+ *
+ * Returns true if the packet destination is unicast and it is not the best gw,
+ * false otherwise.
+ *
+ * This call might reallocate skb data.
+ */
bool batadv_gw_out_of_range(struct batadv_priv *bat_priv,
struct sk_buff *skb)
{
@@ -737,6 +750,9 @@ bool batadv_gw_out_of_range(struct batadv_priv *bat_priv,
bool ret, out_of_range = false;
unsigned int header_len = 0;
uint8_t curr_tq_avg;
+ unsigned short vid;
+
+ vid = batadv_get_vid(skb, 0);
ret = batadv_gw_is_dhcp_target(skb, &header_len);
if (!ret)
@@ -744,8 +760,7 @@ bool batadv_gw_out_of_range(struct batadv_priv *bat_priv,
ethhdr = (struct ethhdr *)skb->data;
orig_dst_node = batadv_transtable_search(bat_priv, ethhdr->h_source,
- ethhdr->h_dest,
- BATADV_NO_FLAGS);
+ ethhdr->h_dest, vid);
if (!orig_dst_node)
goto out;
--
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