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authorJohannes Berg <johannes.berg@intel.com>2016-08-29 23:25:19 +0300
committerJohannes Berg <johannes.berg@intel.com>2016-09-12 11:46:31 +0200
commit53f249747d5ec6434415a6895b5690bf4f1d5d7d (patch)
tree94bc4438cf8b9648374ad5245a7d229be768d81a
parentbfe40fa395ddc41e45310a4426574703a05e1177 (diff)
downloadblackbird-op-linux-53f249747d5ec6434415a6895b5690bf4f1d5d7d.tar.gz
blackbird-op-linux-53f249747d5ec6434415a6895b5690bf4f1d5d7d.zip
mac80211: send delBA on unexpected BlockAck Request
If we don't have a BA session, send delBA, as requested by the IEEE 802.11 spec. Apply the same limit of sending such a delBA only once as in the previous patch. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
-rw-r--r--net/mac80211/rx.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index ad636c930f84..e796060b7c5e 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2592,6 +2592,12 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx, struct sk_buff_head *frames)
tid = le16_to_cpu(bar_data.control) >> 12;
+ if (!test_bit(tid, rx->sta->ampdu_mlme.agg_session_valid) &&
+ !test_and_set_bit(tid, rx->sta->ampdu_mlme.unexpected_agg))
+ ieee80211_send_delba(rx->sdata, rx->sta->sta.addr, tid,
+ WLAN_BACK_RECIPIENT,
+ WLAN_REASON_QSTA_REQUIRE_SETUP);
+
tid_agg_rx = rcu_dereference(rx->sta->ampdu_mlme.tid_rx[tid]);
if (!tid_agg_rx)
return RX_DROP_MONITOR;
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