From: Linus Lüssing <[email protected]> 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 <[email protected]> Acked-by: Antonio Quartulli <[email protected]> Signed-off-by: Marek Lindner <[email protected]> Signed-off-by: Antonio Quartulli <[email protected]> --- 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 90f4049..f8cc142 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 ... -- 1.8.0.2
