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batman-adv: don't add loop detect macs to TT

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The bridge loop avoidance (BLA) feature of batman-adv sends packets to
probe for Mesh/LAN packet loops. Those packets are not sent by real
clients and should therefore not be added to the translation table (TT).

Signed-off-by: Simon Wunderlich <simon.wunderlich@open-mesh.com>
This commit is contained in:
Simon Wunderlich
2016-11-24 16:11:01 +01:00
committed by Simon Wunderlich
parent 32bcad4b7f
commit d3e9768ab9
2 changed files with 20 additions and 1 deletions
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3
net/batman-adv/soft-interface.c
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@@ -258,7 +258,8 @@ static int batadv_interface_tx(struct sk_buff *skb,
ethhdr = eth_hdr(skb);
/* Register the client MAC in the transtable */
if (!is_multicast_ether_addr(ethhdr->h_source)) {
if (!is_multicast_ether_addr(ethhdr->h_source) &&
!batadv_bla_is_loopdetect_mac(ethhdr->h_source)) {
client_added = batadv_tt_local_add(soft_iface, ethhdr->h_source,
vid, skb->skb_iif,
skb->mark);