From: Luca Coelho <luca@coelho.fi>
To: johannes@sipsolutions.net
Cc: linux-wireless@vger.kernel.org
Subject: [PATCH 5/5] mac80211: send delBA on unexpected BlockAck Request
Date: Mon, 29 Aug 2016 16:39:58 +0300 [thread overview]
Message-ID: <1472477998-25972-5-git-send-email-luca@coelho.fi> (raw)
From: Johannes Berg <johannes.berg@intel.com>
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>
---
net/mac80211/rx.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 7a60b59..bea9e11 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
reply other threads:[~2016-08-29 13:40 UTC|newest]
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