X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=net%2Fmac80211%2Fagg-tx.c;h=a4d3fa14f76b7bea43d7538312934b0cf34528ff;hb=16e2609fab665a065dd07bd7d7fed60981a004c8;hp=430a585875388f841001c3dfc6a14453179c7618;hpb=6dd580b93da8de5cab4ac1f24f343086318b664e;p=platform%2Fkernel%2Flinux-rpi.git

diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 430a585..a4d3fa1 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -9,7 +9,7 @@
  * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
  * Copyright 2007-2010, Intel Corporation
  * Copyright(c) 2015-2017 Intel Deutschland GmbH
- * Copyright (C) 2018 - 2020 Intel Corporation
+ * Copyright (C) 2018 - 2022 Intel Corporation
  */
 
 #include <linux/ieee80211.h>
@@ -106,7 +106,7 @@ static void ieee80211_send_addba_request(struct ieee80211_sub_if_data *sdata,
 	mgmt->u.action.u.addba_req.start_seq_num =
 					cpu_to_le16(start_seq_num << 4);
 
-	ieee80211_tx_skb(sdata, skb);
+	ieee80211_tx_skb_tid(sdata, skb, tid);
 }
 
 void ieee80211_send_bar(struct ieee80211_vif *vif, u8 *ra, u16 tid, u16 ssn)
@@ -213,6 +213,8 @@ ieee80211_agg_start_txq(struct sta_info *sta, int tid, bool enable)
 	struct ieee80211_txq *txq = sta->sta.txq[tid];
 	struct txq_info *txqi;
 
+	lockdep_assert_held(&sta->ampdu_mlme.mtx);
+
 	if (!txq)
 		return;
 
@@ -290,7 +292,6 @@ static void ieee80211_remove_tid_tx(struct sta_info *sta, int tid)
 	ieee80211_assign_tid_tx(sta, tid, NULL);
 
 	ieee80211_agg_splice_finish(sta->sdata, tid);
-	ieee80211_agg_start_txq(sta, tid, false);
 
 	kfree_rcu(tid_tx, rcu_head);
 }
@@ -480,8 +481,7 @@ static void ieee80211_send_addba_with_timeout(struct sta_info *sta,
 
 	/* send AddBA request */
 	ieee80211_send_addba_request(sdata, sta->sta.addr, tid,
-				     tid_tx->dialog_token,
-				     sta->tid_seq[tid] >> 4,
+				     tid_tx->dialog_token, tid_tx->ssn,
 				     buf_size, tid_tx->timeout);
 
 	WARN_ON(test_and_set_bit(HT_AGG_STATE_SENT_ADDBA, &tid_tx->state));
@@ -491,7 +491,7 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
 {
 	struct tid_ampdu_tx *tid_tx;
 	struct ieee80211_local *local = sta->local;
-	struct ieee80211_sub_if_data *sdata = sta->sdata;
+	struct ieee80211_sub_if_data *sdata;
 	struct ieee80211_ampdu_params params = {
 		.sta = &sta->sta,
 		.action = IEEE80211_AMPDU_TX_START,
@@ -521,8 +521,10 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
 	 */
 	synchronize_net();
 
+	sdata = sta->sdata;
 	params.ssn = sta->tid_seq[tid] >> 4;
 	ret = drv_ampdu_action(local, sdata, &params);
+	tid_tx->ssn = params.ssn;
 	if (ret == IEEE80211_AMPDU_TX_START_DELAY_ADDBA) {
 		return;
 	} else if (ret == IEEE80211_AMPDU_TX_START_IMMEDIATE) {
@@ -533,6 +535,9 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
 		 */
 		set_bit(HT_AGG_STATE_DRV_READY, &tid_tx->state);
 	} else if (ret) {
+		if (!sdata)
+			return;
+
 		ht_dbg(sdata,
 		       "BA request denied - HW unavailable for %pM tid %d\n",
 		       sta->sta.addr, tid);
@@ -625,6 +630,14 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid,
 		return -EINVAL;
 	}
 
+	if (test_sta_flag(sta, WLAN_STA_MFP) &&
+	    !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
+		ht_dbg(sdata,
+		       "MFP STA not authorized - deny BA session request %pM tid %d\n",
+		       sta->sta.addr, tid);
+		return -EINVAL;
+	}
+
 	/*
 	 * 802.11n-2009 11.5.1.1: If the initiating STA is an HT STA, is a
 	 * member of an IBSS, and has no other existing Block Ack agreement
@@ -889,6 +902,7 @@ void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
 {
 	struct ieee80211_sub_if_data *sdata = sta->sdata;
 	bool send_delba = false;
+	bool start_txq = false;
 
 	ht_dbg(sdata, "Stopping Tx BA session for %pM tid %d\n",
 	       sta->sta.addr, tid);
@@ -906,10 +920,14 @@ void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
 		send_delba = true;
 
 	ieee80211_remove_tid_tx(sta, tid);
+	start_txq = true;
 
  unlock_sta:
 	spin_unlock_bh(&sta->lock);
 
+	if (start_txq)
+		ieee80211_agg_start_txq(sta, tid, false);
+
 	if (send_delba)
 		ieee80211_send_delba(sdata, sta->sta.addr, tid,
 			WLAN_BACK_INITIATOR, WLAN_REASON_QSTA_NOT_USE);