From 4f3123366f78cf34ce7caab923e2b3c4fe9e16c2 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sat, 5 Feb 2011 23:48:37 +0100 Subject: [PATCH] mac80211: as a 4-addr station, do not receive packets for other stations 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 Reported-by: Steve Brown Signed-off-by: John W. Linville --- net/mac80211/rx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index b5f59ed24000..50c2c881249d 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -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; }