From 02233e0c75fc512ca60e7e82943f0a4395a85411 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Linus=20L=C3=BCssing?= Date: Wed, 17 Oct 2012 15:07:35 +0200 Subject: [PATCH] batman-adv: Do not add multicast MAC addresses to translation table MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Acked-by: Antonio Quartulli Signed-off-by: Marek Lindner Signed-off-by: Antonio Quartulli --- net/batman-adv/soft-interface.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c index 90f4049a90dd..f8cc1429942f 100644 --- a/net/batman-adv/soft-interface.c +++ b/net/batman-adv/soft-interface.c @@ -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 ... -- 2.30.2