[PATCH v2 6/6] mac80211: send delBA on unexpected BlockAck Request
From: Luca Coelho <hidden>
Date: 2016-08-29 20:25:29
Subsystem:
mac80211, the rest · Maintainers:
Johannes Berg, Linus Torvalds
From: Johannes Berg <redacted> 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 <redacted> --- net/mac80211/rx.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 27b58f3..29f9669 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c@@ -2593,6 +2593,12 @@ 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;
--
2.8.1