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mac80211: check if frame is really part of this BA 

There was an an implicit assumption that any QoS data frame received
from a STA/TID with an active BA session was sent to this vif as part of
a BA.  This is not true if IFF_PROMISC is enabled and the frame was
destined for a different peer, for example. Don't treat these frames as
part of a BA from the sending STA.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Thomas Pedersen 2011-11-03 21:11:12 -07:00 committed by John W. Linville
parent 6cc00d545a
commit 660c6a449a
1 changed files with 5 additions and 0 deletions
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5
net/mac80211/rx.c
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@ -744,6 +744,7 @@ static void ieee80211_rx_reorder_ampdu(struct ieee80211_rx_data *rx)
struct ieee80211_local *local = rx->local;
struct ieee80211_hw *hw = &local->hw;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
struct sta_info *sta = rx->sta;
struct tid_ampdu_rx *tid_agg_rx;
u16 sc;
@ -777,6 +778,10 @@ static void ieee80211_rx_reorder_ampdu(struct ieee80211_rx_data *rx)
ack_policy != IEEE80211_QOS_CTL_ACK_POLICY_NORMAL)
goto dont_reorder;
/* not actually part of this BA session */
if (!(status->rx_flags & IEEE80211_RX_RA_MATCH))
goto dont_reorder;
/* new, potentially un-ordered, ampdu frame - process it */
/* reset session timer */