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mac80211: as a 4-addr station, do not receive packets for other stations

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Since 4-addr frames completely override the source address which will
make it into the converted 802.3 frames, receiving frames for other
4-addr stations will confuse the bridging code.

To be able to handle traffic for all connected devices, the bridge
code will automatically turn on promiscuous mode, which triggers
this problem.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Reported-by: Steve Brown <sbrown@cortland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau 2011-02-05 23:48:37 +01:00 committed by John W. Linville
parent 180205bdb2
commit 4f3123366f
1 changed files with 2 additions and 1 deletions
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3
net/mac80211/rx.c
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@ -2646,7 +2646,8 @@ static int prepare_for_handlers(struct ieee80211_rx_data *rx,
return 0;
if (!multicast &&
compare_ether_addr(sdata->vif.addr, hdr->addr1) != 0) {
if (!(sdata->dev->flags & IFF_PROMISC))
if (!(sdata->dev->flags & IFF_PROMISC) ||
sdata->u.mgd.use_4addr)
return 0;
status->rx_flags &= ~IEEE80211_RX_RA_MATCH;
}