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-rw-r--r--package/kernel/mac80211/patches/344-mac80211-send-delBA-on-unexpected-BlockAck-Request.patch26
1 files changed, 26 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/344-mac80211-send-delBA-on-unexpected-BlockAck-Request.patch b/package/kernel/mac80211/patches/344-mac80211-send-delBA-on-unexpected-BlockAck-Request.patch
new file mode 100644
index 0000000000..c3d3118894
--- /dev/null
+++ b/package/kernel/mac80211/patches/344-mac80211-send-delBA-on-unexpected-BlockAck-Request.patch
@@ -0,0 +1,26 @@
+From: Johannes Berg <johannes.berg@intel.com>
+Date: Mon, 29 Aug 2016 23:25:19 +0300
+Subject: [PATCH] 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>
+---
+
+--- a/net/mac80211/rx.c
++++ b/net/mac80211/rx.c
+@@ -2537,6 +2537,12 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_
+
+ 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;