aboutsummaryrefslogtreecommitdiff
path: root/net/mac80211
diff options
context:
space:
mode:
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/agg-tx.c19
-rw-r--r--net/mac80211/cfg.c4
-rw-r--r--net/mac80211/mlme.c8
-rw-r--r--net/mac80211/rx.c65
-rw-r--r--net/mac80211/sta_info.c12
-rw-r--r--net/mac80211/sta_info.h8
6 files changed, 111 insertions, 5 deletions
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index e92f98d3274..76be6174419 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -392,6 +392,7 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
#endif
spin_lock_bh(&sta->lock);
+ sta->ampdu_mlme.last_addba_req_time[tid] = jiffies;
sta->ampdu_mlme.addba_req_num[tid]++;
spin_unlock_bh(&sta->lock);
@@ -492,6 +493,24 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid,
goto err_unlock_sta;
}
+ /*
+ * if we have tried more than HT_AGG_BURST_RETRIES times we
+ * will spread our requests in time to avoid stalling connection
+ * for too long
+ */
+ if (sta->ampdu_mlme.addba_req_num[tid] > HT_AGG_BURST_RETRIES &&
+ time_before(jiffies, sta->ampdu_mlme.last_addba_req_time[tid] +
+ HT_AGG_RETRIES_PERIOD)) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "BA request denied - "
+ "waiting a grace period after %d failed requests "
+ "on tid %u\n",
+ sta->ampdu_mlme.addba_req_num[tid], tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+ ret = -EBUSY;
+ goto err_unlock_sta;
+ }
+
tid_tx = rcu_dereference_protected_tid_tx(sta, tid);
/* check if the TID is not in aggregation flow already */
if (tid_tx || sta->ampdu_mlme.tid_start_tx[tid]) {
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 66ad9d9af87..850bb96bd68 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -355,7 +355,8 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
STATION_INFO_RX_DROP_MISC |
STATION_INFO_BSS_PARAM |
STATION_INFO_CONNECTED_TIME |
- STATION_INFO_STA_FLAGS;
+ STATION_INFO_STA_FLAGS |
+ STATION_INFO_BEACON_LOSS_COUNT;
do_posix_clock_monotonic_gettime(&uptime);
sinfo->connected_time = uptime.tv_sec - sta->last_connected;
@@ -368,6 +369,7 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
sinfo->tx_retries = sta->tx_retry_count;
sinfo->tx_failed = sta->tx_retry_failed;
sinfo->rx_dropped_misc = sta->rx_dropped;
+ sinfo->beacon_loss_count = sta->beacon_loss_count;
if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
(sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index a984f1f60dd..57989a046fc 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1381,6 +1381,14 @@ void ieee80211_beacon_connection_loss_work(struct work_struct *work)
struct ieee80211_sub_if_data *sdata =
container_of(work, struct ieee80211_sub_if_data,
u.mgd.beacon_connection_loss_work);
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ struct sta_info *sta;
+
+ if (ifmgd->associated) {
+ sta = sta_info_get(sdata, ifmgd->bssid);
+ if (sta)
+ sta->beacon_loss_count++;
+ }
if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
__ieee80211_connection_loss(sdata);
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 2be5b7d69ad..59f124c5833 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -28,6 +28,7 @@
#include "wpa.h"
#include "tkip.h"
#include "wme.h"
+#include "rate.h"
/*
* monitor mode reception
@@ -1826,7 +1827,12 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx)
}
if (xmit_skb) {
- /* send to wireless media */
+ /*
+ * Send to wireless media and increase priority by 256 to
+ * keep the received priority instead of reclassifying
+ * the frame (see cfg80211_classify8021d).
+ */
+ xmit_skb->priority += 256;
xmit_skb->protocol = htons(ETH_P_802_3);
skb_reset_network_header(xmit_skb);
skb_reset_mac_header(xmit_skb);
@@ -2233,6 +2239,63 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
return RX_DROP_UNUSABLE;
switch (mgmt->u.action.category) {
+ case WLAN_CATEGORY_HT:
+ /* reject HT action frames from stations not supporting HT */
+ if (!rx->sta->sta.ht_cap.ht_supported)
+ goto invalid;
+
+ if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+ sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
+ sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
+ sdata->vif.type != NL80211_IFTYPE_AP &&
+ sdata->vif.type != NL80211_IFTYPE_ADHOC)
+ break;
+
+ /* verify action & smps_control are present */
+ if (len < IEEE80211_MIN_ACTION_SIZE + 2)
+ goto invalid;
+
+ switch (mgmt->u.action.u.ht_smps.action) {
+ case WLAN_HT_ACTION_SMPS: {
+ struct ieee80211_supported_band *sband;
+ u8 smps;
+
+ /* convert to HT capability */
+ switch (mgmt->u.action.u.ht_smps.smps_control) {
+ case WLAN_HT_SMPS_CONTROL_DISABLED:
+ smps = WLAN_HT_CAP_SM_PS_DISABLED;
+ break;
+ case WLAN_HT_SMPS_CONTROL_STATIC:
+ smps = WLAN_HT_CAP_SM_PS_STATIC;
+ break;
+ case WLAN_HT_SMPS_CONTROL_DYNAMIC:
+ smps = WLAN_HT_CAP_SM_PS_DYNAMIC;
+ break;
+ default:
+ goto invalid;
+ }
+ smps <<= IEEE80211_HT_CAP_SM_PS_SHIFT;
+
+ /* if no change do nothing */
+ if ((rx->sta->sta.ht_cap.cap &
+ IEEE80211_HT_CAP_SM_PS) == smps)
+ goto handled;
+
+ rx->sta->sta.ht_cap.cap &= ~IEEE80211_HT_CAP_SM_PS;
+ rx->sta->sta.ht_cap.cap |= smps;
+
+ sband = rx->local->hw.wiphy->bands[status->band];
+
+ rate_control_rate_update(local, sband, rx->sta,
+ IEEE80211_RC_SMPS_CHANGED,
+ local->_oper_channel_type);
+ goto handled;
+ }
+ default:
+ goto invalid;
+ }
+
+ break;
case WLAN_CATEGORY_BACK:
if (sdata->vif.type != NL80211_IFTYPE_STATION &&
sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 2db01e9541e..f0d3b483dab 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -822,10 +822,13 @@ static int __must_check __sta_info_destroy(struct sta_info *sta)
* until the aggregation stop completes. Refer
* http://thread.gmane.org/gmane.linux.kernel.wireless.general/81936
*/
+
+ mutex_lock(&sta->ampdu_mlme.mtx);
+
for (i = 0; i < STA_TID_NUM; i++) {
- if (!sta->ampdu_mlme.tid_tx[i])
+ tid_tx = rcu_dereference_protected_tid_tx(sta, i);
+ if (!tid_tx)
continue;
- tid_tx = sta->ampdu_mlme.tid_tx[i];
if (skb_queue_len(&tid_tx->pending)) {
#ifdef CONFIG_MAC80211_HT_DEBUG
wiphy_debug(local->hw.wiphy, "TX A-MPDU purging %d "
@@ -837,6 +840,8 @@ static int __must_check __sta_info_destroy(struct sta_info *sta)
kfree_rcu(tid_tx, rcu_head);
}
+ mutex_unlock(&sta->ampdu_mlme.mtx);
+
sta_info_free(local, sta);
return 0;
@@ -941,6 +946,9 @@ void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
mutex_lock(&local->sta_mtx);
list_for_each_entry_safe(sta, tmp, &local->sta_list, list)
+ if (sdata != sta->sdata)
+ continue;
+
if (time_after(jiffies, sta->last_rx + exp_time)) {
#ifdef CONFIG_MAC80211_IBSS_DEBUG
printk(KERN_DEBUG "%s: expiring inactive STA %pM\n",
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 15b3bb7d862..6f77f12dc3f 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -83,7 +83,9 @@ enum ieee80211_sta_state {
#define STA_TID_NUM 16
#define ADDBA_RESP_INTERVAL HZ
-#define HT_AGG_MAX_RETRIES 0x3
+#define HT_AGG_MAX_RETRIES 15
+#define HT_AGG_BURST_RETRIES 3
+#define HT_AGG_RETRIES_PERIOD (15 * HZ)
#define HT_AGG_STATE_DRV_READY 0
#define HT_AGG_STATE_RESPONSE_RECEIVED 1
@@ -179,6 +181,7 @@ struct tid_ampdu_rx {
* @tid_tx: aggregation info for Tx per TID
* @tid_start_tx: sessions where start was requested
* @addba_req_num: number of times addBA request has been sent.
+ * @last_addba_req_time: timestamp of the last addBA request.
* @dialog_token_allocator: dialog token enumerator for each new session;
* @work: work struct for starting/stopping aggregation
* @tid_rx_timer_expired: bitmap indicating on which TIDs the
@@ -198,6 +201,7 @@ struct sta_ampdu_mlme {
struct work_struct work;
struct tid_ampdu_tx __rcu *tid_tx[STA_TID_NUM];
struct tid_ampdu_tx *tid_start_tx[STA_TID_NUM];
+ unsigned long last_addba_req_time[STA_TID_NUM];
u8 addba_req_num[STA_TID_NUM];
u8 dialog_token_allocator;
};
@@ -271,6 +275,7 @@ struct sta_ampdu_mlme {
* EAP frames before association
* @sta: station information we share with the driver
* @sta_state: duplicates information about station state (for debug)
+ * @beacon_loss_count: number of times beacon loss has triggered
*/
struct sta_info {
/* General information, mostly static */
@@ -363,6 +368,7 @@ struct sta_info {
#endif
unsigned int lost_packets;
+ unsigned int beacon_loss_count;
/* should be right in front of sta to be in the same cache line */
bool dummy;
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-23 18:24:15 +0000