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batman-adv: Do not add multicast MAC addresses to translation table 

The current translation table mechanism is not suitable for multicast
addresses and we are currently flooding such frames anyway.

Therefore this patch prevents multicast MAC addresses being added to the
translation table.

Signed-off-by: Linus Lüssing <linus.luessing@web.de>
Acked-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
This commit is contained in:
Linus Lüssing 2012-10-17 15:07:35 +02:00 committed by Antonio Quartulli
parent 569174433d
commit 02233e0c75
1 changed files with 2 additions and 1 deletions
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3
net/batman-adv/soft-interface.c
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@ -180,7 +180,8 @@ static int batadv_interface_tx(struct sk_buff *skb,
goto dropped;
/* Register the client MAC in the transtable */
batadv_tt_local_add(soft_iface, ethhdr->h_source, skb->skb_iif);
if (!is_multicast_ether_addr(ethhdr->h_source))
batadv_tt_local_add(soft_iface, ethhdr->h_source, skb->skb_iif);
/* don't accept stp packets. STP does not help in meshes.
* better use the bridge loop avoidance ...