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-rw-r--r--net/mac80211/agg-rx.c2
-rw-r--r--net/mac80211/cfg.c532
-rw-r--r--net/mac80211/debugfs.c8
-rw-r--r--net/mac80211/ibss.c1
-rw-r--r--net/mac80211/ieee80211_i.h27
-rw-r--r--net/mac80211/key.c56
-rw-r--r--net/mac80211/main.c10
-rw-r--r--net/mac80211/mesh_pathtbl.c4
-rw-r--r--net/mac80211/mlme.c6
-rw-r--r--net/mac80211/offchannel.c831
-rw-r--r--net/mac80211/rc80211_minstrel.c2
-rw-r--r--net/mac80211/rc80211_minstrel_ht.c16
-rw-r--r--net/mac80211/rx.c40
-rw-r--r--net/mac80211/scan.c8
-rw-r--r--net/mac80211/sta_info.c163
-rw-r--r--net/mac80211/sta_info.h2
-rw-r--r--net/mac80211/status.c5
-rw-r--r--net/mac80211/trace.h25
-rw-r--r--net/mac80211/tx.c2
-rw-r--r--net/mac80211/util.c23
20 files changed, 998 insertions, 765 deletions
diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index 10ad4ac1f..367784be5 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -291,7 +291,7 @@ void __ieee80211_start_rx_ba_session(struct sta_info *sta,
}
/* prepare A-MPDU MLME for Rx aggregation */
- tid_agg_rx = kmalloc(sizeof(struct tid_ampdu_rx), GFP_KERNEL);
+ tid_agg_rx = kzalloc(sizeof(*tid_agg_rx), GFP_KERNEL);
if (!tid_agg_rx)
goto end;
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index c12f34813..166a29fe6 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1215,16 +1215,6 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
if (!sta)
return -ENOMEM;
- /*
- * defaults -- if userspace wants something else we'll
- * change it accordingly in sta_apply_parameters()
- */
- if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
- !(params->sta_flags_set & (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
- BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
- sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
- sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
- }
if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
sta->sta.tdls = true;
@@ -1993,6 +1983,11 @@ static int ieee80211_scan(struct wiphy *wiphy,
return ieee80211_request_scan(sdata, req);
}
+static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
+{
+ ieee80211_scan_cancel(wiphy_priv(wiphy));
+}
+
static int
ieee80211_sched_scan_start(struct wiphy *wiphy,
struct net_device *dev,
@@ -2508,294 +2503,6 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
return 0;
}
-static bool ieee80211_coalesce_started_roc(struct ieee80211_local *local,
- struct ieee80211_roc_work *new_roc,
- struct ieee80211_roc_work *cur_roc)
-{
- unsigned long now = jiffies;
- unsigned long remaining = cur_roc->hw_start_time +
- msecs_to_jiffies(cur_roc->duration) -
- now;
-
- if (WARN_ON(!cur_roc->started || !cur_roc->hw_begun))
- return false;
-
- /* if it doesn't fit entirely, schedule a new one */
- if (new_roc->duration > jiffies_to_msecs(remaining))
- return false;
-
- ieee80211_handle_roc_started(new_roc);
-
- /* add to dependents so we send the expired event properly */
- list_add_tail(&new_roc->list, &cur_roc->dependents);
- return true;
-}
-
-static u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
-{
- lockdep_assert_held(&local->mtx);
-
- local->roc_cookie_counter++;
-
- /* wow, you wrapped 64 bits ... more likely a bug */
- if (WARN_ON(local->roc_cookie_counter == 0))
- local->roc_cookie_counter++;
-
- return local->roc_cookie_counter;
-}
-
-static int ieee80211_start_roc_work(struct ieee80211_local *local,
- struct ieee80211_sub_if_data *sdata,
- struct ieee80211_channel *channel,
- unsigned int duration, u64 *cookie,
- struct sk_buff *txskb,
- enum ieee80211_roc_type type)
-{
- struct ieee80211_roc_work *roc, *tmp;
- bool queued = false;
- int ret;
-
- lockdep_assert_held(&local->mtx);
-
- if (local->use_chanctx && !local->ops->remain_on_channel)
- return -EOPNOTSUPP;
-
- roc = kzalloc(sizeof(*roc), GFP_KERNEL);
- if (!roc)
- return -ENOMEM;
-
- /*
- * If the duration is zero, then the driver
- * wouldn't actually do anything. Set it to
- * 10 for now.
- *
- * TODO: cancel the off-channel operation
- * when we get the SKB's TX status and
- * the wait time was zero before.
- */
- if (!duration)
- duration = 10;
-
- roc->chan = channel;
- roc->duration = duration;
- roc->req_duration = duration;
- roc->frame = txskb;
- roc->type = type;
- roc->sdata = sdata;
- INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
- INIT_LIST_HEAD(&roc->dependents);
-
- /*
- * cookie is either the roc cookie (for normal roc)
- * or the SKB (for mgmt TX)
- */
- if (!txskb) {
- roc->cookie = ieee80211_mgmt_tx_cookie(local);
- *cookie = roc->cookie;
- } else {
- roc->mgmt_tx_cookie = *cookie;
- }
-
- /* if there's one pending or we're scanning, queue this one */
- if (!list_empty(&local->roc_list) ||
- local->scanning || ieee80211_is_radar_required(local))
- goto out_check_combine;
-
- /* if not HW assist, just queue & schedule work */
- if (!local->ops->remain_on_channel) {
- ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
- goto out_queue;
- }
-
- /* otherwise actually kick it off here (for error handling) */
-
- ret = drv_remain_on_channel(local, sdata, channel, duration, type);
- if (ret) {
- kfree(roc);
- return ret;
- }
-
- roc->started = true;
- goto out_queue;
-
- out_check_combine:
- list_for_each_entry(tmp, &local->roc_list, list) {
- if (tmp->chan != channel || tmp->sdata != sdata)
- continue;
-
- /*
- * Extend this ROC if possible:
- *
- * If it hasn't started yet, just increase the duration
- * and add the new one to the list of dependents.
- * If the type of the new ROC has higher priority, modify the
- * type of the previous one to match that of the new one.
- */
- if (!tmp->started) {
- list_add_tail(&roc->list, &tmp->dependents);
- tmp->duration = max(tmp->duration, roc->duration);
- tmp->type = max(tmp->type, roc->type);
- queued = true;
- break;
- }
-
- /* If it has already started, it's more difficult ... */
- if (local->ops->remain_on_channel) {
- /*
- * In the offloaded ROC case, if it hasn't begun, add
- * this new one to the dependent list to be handled
- * when the master one begins. If it has begun,
- * check if it fits entirely within the existing one,
- * in which case it will just be dependent as well.
- * Otherwise, schedule it by itself.
- */
- if (!tmp->hw_begun) {
- list_add_tail(&roc->list, &tmp->dependents);
- queued = true;
- break;
- }
-
- if (ieee80211_coalesce_started_roc(local, roc, tmp))
- queued = true;
- } else if (del_timer_sync(&tmp->work.timer)) {
- unsigned long new_end;
-
- /*
- * In the software ROC case, cancel the timer, if
- * that fails then the finish work is already
- * queued/pending and thus we queue the new ROC
- * normally, if that succeeds then we can extend
- * the timer duration and TX the frame (if any.)
- */
-
- list_add_tail(&roc->list, &tmp->dependents);
- queued = true;
-
- new_end = jiffies + msecs_to_jiffies(roc->duration);
-
- /* ok, it was started & we canceled timer */
- if (time_after(new_end, tmp->work.timer.expires))
- mod_timer(&tmp->work.timer, new_end);
- else
- add_timer(&tmp->work.timer);
-
- ieee80211_handle_roc_started(roc);
- }
- break;
- }
-
- out_queue:
- if (!queued)
- list_add_tail(&roc->list, &local->roc_list);
-
- return 0;
-}
-
-static int ieee80211_remain_on_channel(struct wiphy *wiphy,
- struct wireless_dev *wdev,
- struct ieee80211_channel *chan,
- unsigned int duration,
- u64 *cookie)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
- struct ieee80211_local *local = sdata->local;
- int ret;
-
- mutex_lock(&local->mtx);
- ret = ieee80211_start_roc_work(local, sdata, chan,
- duration, cookie, NULL,
- IEEE80211_ROC_TYPE_NORMAL);
- mutex_unlock(&local->mtx);
-
- return ret;
-}
-
-static int ieee80211_cancel_roc(struct ieee80211_local *local,
- u64 cookie, bool mgmt_tx)
-{
- struct ieee80211_roc_work *roc, *tmp, *found = NULL;
- int ret;
-
- mutex_lock(&local->mtx);
- list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
- struct ieee80211_roc_work *dep, *tmp2;
-
- list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
- if (!mgmt_tx && dep->cookie != cookie)
- continue;
- else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
- continue;
- /* found dependent item -- just remove it */
- list_del(&dep->list);
- mutex_unlock(&local->mtx);
-
- ieee80211_roc_notify_destroy(dep, true);
- return 0;
- }
-
- if (!mgmt_tx && roc->cookie != cookie)
- continue;
- else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
- continue;
-
- found = roc;
- break;
- }
-
- if (!found) {
- mutex_unlock(&local->mtx);
- return -ENOENT;
- }
-
- /*
- * We found the item to cancel, so do that. Note that it
- * may have dependents, which we also cancel (and send
- * the expired signal for.) Not doing so would be quite
- * tricky here, but we may need to fix it later.
- */
-
- if (local->ops->remain_on_channel) {
- if (found->started) {
- ret = drv_cancel_remain_on_channel(local);
- if (WARN_ON_ONCE(ret)) {
- mutex_unlock(&local->mtx);
- return ret;
- }
- }
-
- list_del(&found->list);
-
- if (found->started)
- ieee80211_start_next_roc(local);
- mutex_unlock(&local->mtx);
-
- ieee80211_roc_notify_destroy(found, true);
- } else {
- /* work may be pending so use it all the time */
- found->abort = true;
- ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
-
- mutex_unlock(&local->mtx);
-
- /* work will clean up etc */
- flush_delayed_work(&found->work);
- WARN_ON(!found->to_be_freed);
- kfree(found);
- }
-
- return 0;
-}
-
-static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
- struct wireless_dev *wdev,
- u64 cookie)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
- struct ieee80211_local *local = sdata->local;
-
- return ieee80211_cancel_roc(local, cookie, false);
-}
-
static int ieee80211_start_radar_detection(struct wiphy *wiphy,
struct net_device *dev,
struct cfg80211_chan_def *chandef,
@@ -3266,9 +2973,21 @@ int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
return err;
}
-static struct sk_buff *ieee80211_make_ack_skb(struct ieee80211_local *local,
- struct sk_buff *skb, u64 *cookie,
- gfp_t gfp)
+u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
+{
+ lockdep_assert_held(&local->mtx);
+
+ local->roc_cookie_counter++;
+
+ /* wow, you wrapped 64 bits ... more likely a bug */
+ if (WARN_ON(local->roc_cookie_counter == 0))
+ local->roc_cookie_counter++;
+
+ return local->roc_cookie_counter;
+}
+
+int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
+ u64 *cookie, gfp_t gfp)
{
unsigned long spin_flags;
struct sk_buff *ack_skb;
@@ -3276,7 +2995,7 @@ static struct sk_buff *ieee80211_make_ack_skb(struct ieee80211_local *local,
ack_skb = skb_copy(skb, gfp);
if (!ack_skb)
- return ERR_PTR(-ENOMEM);
+ return -ENOMEM;
spin_lock_irqsave(&local->ack_status_lock, spin_flags);
id = idr_alloc(&local->ack_status_frames, ack_skb,
@@ -3285,7 +3004,7 @@ static struct sk_buff *ieee80211_make_ack_skb(struct ieee80211_local *local,
if (id < 0) {
kfree_skb(ack_skb);
- return ERR_PTR(-ENOMEM);
+ return -ENOMEM;
}
IEEE80211_SKB_CB(skb)->ack_frame_id = id;
@@ -3293,204 +3012,7 @@ static struct sk_buff *ieee80211_make_ack_skb(struct ieee80211_local *local,
*cookie = ieee80211_mgmt_tx_cookie(local);
IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
- return ack_skb;
-}
-
-static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
- struct cfg80211_mgmt_tx_params *params,
- u64 *cookie)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
- struct ieee80211_local *local = sdata->local;
- struct sk_buff *skb, *ack_skb;
- struct sta_info *sta;
- const struct ieee80211_mgmt *mgmt = (void *)params->buf;
- bool need_offchan = false;
- u32 flags;
- int ret;
- u8 *data;
-
- if (params->dont_wait_for_ack)
- flags = IEEE80211_TX_CTL_NO_ACK;
- else
- flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
- IEEE80211_TX_CTL_REQ_TX_STATUS;
-
- if (params->no_cck)
- flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
-
- switch (sdata->vif.type) {
- case NL80211_IFTYPE_ADHOC:
- if (!sdata->vif.bss_conf.ibss_joined)
- need_offchan = true;
- /* fall through */
-#ifdef CONFIG_MAC80211_MESH
- case NL80211_IFTYPE_MESH_POINT:
- if (ieee80211_vif_is_mesh(&sdata->vif) &&
- !sdata->u.mesh.mesh_id_len)
- need_offchan = true;
- /* fall through */
-#endif
- case NL80211_IFTYPE_AP:
- case NL80211_IFTYPE_AP_VLAN:
- case NL80211_IFTYPE_P2P_GO:
- if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
- !ieee80211_vif_is_mesh(&sdata->vif) &&
- !rcu_access_pointer(sdata->bss->beacon))
- need_offchan = true;
- if (!ieee80211_is_action(mgmt->frame_control) ||
- mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
- mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
- mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
- break;
- rcu_read_lock();
- sta = sta_info_get(sdata, mgmt->da);
- rcu_read_unlock();
- if (!sta)
- return -ENOLINK;
- break;
- case NL80211_IFTYPE_STATION:
- case NL80211_IFTYPE_P2P_CLIENT:
- sdata_lock(sdata);
- if (!sdata->u.mgd.associated ||
- (params->offchan && params->wait &&
- local->ops->remain_on_channel &&
- memcmp(sdata->u.mgd.associated->bssid,
- mgmt->bssid, ETH_ALEN)))
- need_offchan = true;
- sdata_unlock(sdata);
- break;
- case NL80211_IFTYPE_P2P_DEVICE:
- need_offchan = true;
- break;
- default:
- return -EOPNOTSUPP;
- }
-
- /* configurations requiring offchan cannot work if no channel has been
- * specified
- */
- if (need_offchan && !params->chan)
- return -EINVAL;
-
- mutex_lock(&local->mtx);
-
- /* Check if the operating channel is the requested channel */
- if (!need_offchan) {
- struct ieee80211_chanctx_conf *chanctx_conf;
-
- rcu_read_lock();
- chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
-
- if (chanctx_conf) {
- need_offchan = params->chan &&
- (params->chan !=
- chanctx_conf->def.chan);
- } else if (!params->chan) {
- ret = -EINVAL;
- rcu_read_unlock();
- goto out_unlock;
- } else {
- need_offchan = true;
- }
- rcu_read_unlock();
- }
-
- if (need_offchan && !params->offchan) {
- ret = -EBUSY;
- goto out_unlock;
- }
-
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
- if (!skb) {
- ret = -ENOMEM;
- goto out_unlock;
- }
- skb_reserve(skb, local->hw.extra_tx_headroom);
-
- data = skb_put(skb, params->len);
- memcpy(data, params->buf, params->len);
-
- /* Update CSA counters */
- if (sdata->vif.csa_active &&
- (sdata->vif.type == NL80211_IFTYPE_AP ||
- sdata->vif.type == NL80211_IFTYPE_MESH_POINT ||
- sdata->vif.type == NL80211_IFTYPE_ADHOC) &&
- params->n_csa_offsets) {
- int i;
- struct beacon_data *beacon = NULL;
-
- rcu_read_lock();
-
- if (sdata->vif.type == NL80211_IFTYPE_AP)
- beacon = rcu_dereference(sdata->u.ap.beacon);
- else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
- beacon = rcu_dereference(sdata->u.ibss.presp);
- else if (ieee80211_vif_is_mesh(&sdata->vif))
- beacon = rcu_dereference(sdata->u.mesh.beacon);
-
- if (beacon)
- for (i = 0; i < params->n_csa_offsets; i++)
- data[params->csa_offsets[i]] =
- beacon->csa_current_counter;
-
- rcu_read_unlock();
- }
-
- IEEE80211_SKB_CB(skb)->flags = flags;
-
- skb->dev = sdata->dev;
-
- if (!params->dont_wait_for_ack) {
- /* make a copy to preserve the frame contents
- * in case of encryption.
- */
- ack_skb = ieee80211_make_ack_skb(local, skb, cookie,
- GFP_KERNEL);
- if (IS_ERR(ack_skb)) {
- ret = PTR_ERR(ack_skb);
- kfree_skb(skb);
- goto out_unlock;
- }
- } else {
- /* Assign a dummy non-zero cookie, it's not sent to
- * userspace in this case but we rely on its value
- * internally in the need_offchan case to distinguish
- * mgmt-tx from remain-on-channel.
- */
- *cookie = 0xffffffff;
- }
-
- if (!need_offchan) {
- ieee80211_tx_skb(sdata, skb);
- ret = 0;
- goto out_unlock;
- }
-
- IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
- IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
- if (ieee80211_hw_check(&local->hw, QUEUE_CONTROL))
- IEEE80211_SKB_CB(skb)->hw_queue =
- local->hw.offchannel_tx_hw_queue;
-
- /* This will handle all kinds of coalescing and immediate TX */
- ret = ieee80211_start_roc_work(local, sdata, params->chan,
- params->wait, cookie, skb,
- IEEE80211_ROC_TYPE_MGMT_TX);
- if (ret)
- kfree_skb(skb);
- out_unlock:
- mutex_unlock(&local->mtx);
- return ret;
-}
-
-static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
- struct wireless_dev *wdev,
- u64 cookie)
-{
- struct ieee80211_local *local = wiphy_priv(wiphy);
-
- return ieee80211_cancel_roc(local, cookie, true);
+ return 0;
}
static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
@@ -3568,7 +3090,7 @@ static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
struct ieee80211_qos_hdr *nullfunc;
- struct sk_buff *skb, *ack_skb;
+ struct sk_buff *skb;
int size = sizeof(*nullfunc);
__le16 fc;
bool qos;
@@ -3636,10 +3158,9 @@ static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
if (qos)
nullfunc->qos_ctrl = cpu_to_le16(7);
- ack_skb = ieee80211_make_ack_skb(local, skb, cookie, GFP_ATOMIC);
- if (IS_ERR(ack_skb)) {
+ ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
+ if (ret) {
kfree_skb(skb);
- ret = PTR_ERR(ack_skb);
goto unlock;
}
@@ -3841,6 +3362,7 @@ const struct cfg80211_ops mac80211_config_ops = {
.suspend = ieee80211_suspend,
.resume = ieee80211_resume,
.scan = ieee80211_scan,
+ .abort_scan = ieee80211_abort_scan,
.sched_scan_start = ieee80211_sched_scan_start,
.sched_scan_stop = ieee80211_sched_scan_stop,
.auth = ieee80211_auth,
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index 4d2aaebd4..3e24d0ddb 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -91,7 +91,7 @@ static const struct file_operations reset_ops = {
};
#endif
-static const char *hw_flag_names[NUM_IEEE80211_HW_FLAGS + 1] = {
+static const char *hw_flag_names[] = {
#define FLAG(F) [IEEE80211_HW_##F] = #F
FLAG(HAS_RATE_CONTROL),
FLAG(RX_INCLUDES_FCS),
@@ -125,9 +125,7 @@ static const char *hw_flag_names[NUM_IEEE80211_HW_FLAGS + 1] = {
FLAG(TDLS_WIDER_BW),
FLAG(SUPPORTS_AMSDU_IN_AMPDU),
FLAG(BEACON_TX_STATUS),
-
- /* keep last for the build bug below */
- (void *)0x1
+ FLAG(NEEDS_UNIQUE_STA_ADDR),
#undef FLAG
};
@@ -147,7 +145,7 @@ static ssize_t hwflags_read(struct file *file, char __user *user_buf,
/* fail compilation if somebody adds or removes
* a flag without updating the name array above
*/
- BUILD_BUG_ON(hw_flag_names[NUM_IEEE80211_HW_FLAGS] != (void *)0x1);
+ BUILD_BUG_ON(ARRAY_SIZE(hw_flag_names) != NUM_IEEE80211_HW_FLAGS);
for (i = 0; i < NUM_IEEE80211_HW_FLAGS; i++) {
if (test_bit(i, local->hw.flags))
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 6a12b0f5c..978d3bc31 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -428,6 +428,7 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
chandef.width = sdata->u.ibss.chandef.width;
break;
case NL80211_CHAN_WIDTH_80:
+ case NL80211_CHAN_WIDTH_80P80:
case NL80211_CHAN_WIDTH_160:
chandef = sdata->u.ibss.chandef;
chandef.chan = cbss->channel;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 5322b4c71..f006f4a44 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -92,7 +92,7 @@ struct ieee80211_fragment_entry {
u16 extra_len;
u16 last_frag;
u8 rx_queue;
- bool ccmp; /* Whether fragments were encrypted with CCMP */
+ bool check_sequential_pn; /* needed for CCMP/GCMP */
u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
};
@@ -325,19 +325,15 @@ struct mesh_preq_queue {
struct ieee80211_roc_work {
struct list_head list;
- struct list_head dependents;
-
- struct delayed_work work;
struct ieee80211_sub_if_data *sdata;
struct ieee80211_channel *chan;
bool started, abort, hw_begun, notified;
- bool to_be_freed;
bool on_channel;
- unsigned long hw_start_time;
+ unsigned long start_time;
u32 duration, req_duration;
struct sk_buff *frame;
@@ -1335,6 +1331,7 @@ struct ieee80211_local {
/*
* Remain-on-channel support
*/
+ struct delayed_work roc_work;
struct list_head roc_list;
struct work_struct hw_roc_start, hw_roc_done;
unsigned long hw_roc_start_time;
@@ -1483,6 +1480,10 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
void ieee80211_configure_filter(struct ieee80211_local *local);
u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
+u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
+int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
+ u64 *cookie, gfp_t gfp);
+
/* STA code */
void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
@@ -1577,16 +1578,22 @@ int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
void ieee80211_sched_scan_end(struct ieee80211_local *local);
void ieee80211_sched_scan_stopped_work(struct work_struct *work);
-/* off-channel helpers */
+/* off-channel/mgmt-tx */
void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
void ieee80211_offchannel_return(struct ieee80211_local *local);
void ieee80211_roc_setup(struct ieee80211_local *local);
void ieee80211_start_next_roc(struct ieee80211_local *local);
void ieee80211_roc_purge(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata);
-void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc, bool free);
-void ieee80211_sw_roc_work(struct work_struct *work);
-void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
+int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
+ struct ieee80211_channel *chan,
+ unsigned int duration, u64 *cookie);
+int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
+ struct wireless_dev *wdev, u64 cookie);
+int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
+ struct cfg80211_mgmt_tx_params *params, u64 *cookie);
+int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
+ struct wireless_dev *wdev, u64 cookie);
/* channel switch handling */
void ieee80211_csa_finalize_work(struct work_struct *work);
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 44388d6a1..5e5bc599d 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -4,6 +4,7 @@
* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
* Copyright 2007-2008 Johannes Berg <johannes@sipsolutions.net>
* Copyright 2013-2014 Intel Mobile Communications GmbH
+ * Copyright 2015 Intel Deutschland GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -320,7 +321,7 @@ static void ieee80211_key_replace(struct ieee80211_sub_if_data *sdata,
return;
if (new)
- list_add_tail(&new->list, &sdata->key_list);
+ list_add_tail_rcu(&new->list, &sdata->key_list);
WARN_ON(new && old && new->conf.keyidx != old->conf.keyidx);
@@ -368,7 +369,7 @@ static void ieee80211_key_replace(struct ieee80211_sub_if_data *sdata,
}
if (old)
- list_del(&old->list);
+ list_del_rcu(&old->list);
}
struct ieee80211_key *
@@ -592,8 +593,8 @@ static void ieee80211_key_destroy(struct ieee80211_key *key,
return;
/*
- * Synchronize so the TX path can no longer be using
- * this key before we free/remove it.
+ * Synchronize so the TX path and rcu key iterators
+ * can no longer be using this key before we free/remove it.
*/
synchronize_net();
@@ -744,6 +745,53 @@ void ieee80211_iter_keys(struct ieee80211_hw *hw,
}
EXPORT_SYMBOL(ieee80211_iter_keys);
+static void
+_ieee80211_iter_keys_rcu(struct ieee80211_hw *hw,
+ struct ieee80211_sub_if_data *sdata,
+ void (*iter)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ struct ieee80211_key_conf *key,
+ void *data),
+ void *iter_data)
+{
+ struct ieee80211_key *key;
+
+ list_for_each_entry_rcu(key, &sdata->key_list, list) {
+ /* skip keys of station in removal process */
+ if (key->sta && key->sta->removed)
+ continue;
+ if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
+ continue;
+
+ iter(hw, &sdata->vif,
+ key->sta ? &key->sta->sta : NULL,
+ &key->conf, iter_data);
+ }
+}
+
+void ieee80211_iter_keys_rcu(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ void (*iter)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ struct ieee80211_key_conf *key,
+ void *data),
+ void *iter_data)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_sub_if_data *sdata;
+
+ if (vif) {
+ sdata = vif_to_sdata(vif);
+ _ieee80211_iter_keys_rcu(hw, sdata, iter, iter_data);
+ } else {
+ list_for_each_entry_rcu(sdata, &local->interfaces, list)
+ _ieee80211_iter_keys_rcu(hw, sdata, iter, iter_data);
+ }
+}
+EXPORT_SYMBOL(ieee80211_iter_keys_rcu);
+
static void ieee80211_free_keys_iface(struct ieee80211_sub_if_data *sdata,
struct list_head *keys)
{
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 175ffcf7f..8190bf27e 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -248,6 +248,7 @@ static void ieee80211_restart_work(struct work_struct *work)
/* wait for scan work complete */
flush_workqueue(local->workqueue);
+ flush_work(&local->sched_scan_stopped_work);
WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
"%s called with hardware scan in progress\n", __func__);
@@ -256,6 +257,11 @@ static void ieee80211_restart_work(struct work_struct *work)
list_for_each_entry(sdata, &local->interfaces, list)
flush_delayed_work(&sdata->dec_tailroom_needed_wk);
ieee80211_scan_cancel(local);
+
+ /* make sure any new ROC will consider local->in_reconfig */
+ flush_delayed_work(&local->roc_work);
+ flush_work(&local->hw_roc_done);
+
ieee80211_reconfig(local);
rtnl_unlock();
}
@@ -541,7 +547,8 @@ struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len,
NL80211_FEATURE_HT_IBSS |
NL80211_FEATURE_VIF_TXPOWER |
NL80211_FEATURE_MAC_ON_CREATE |
- NL80211_FEATURE_USERSPACE_MPM;
+ NL80211_FEATURE_USERSPACE_MPM |
+ NL80211_FEATURE_FULL_AP_CLIENT_STATE;
if (!ops->hw_scan)
wiphy->features |= NL80211_FEATURE_LOW_PRIORITY_SCAN |
@@ -1148,6 +1155,7 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
rtnl_unlock();
+ cancel_delayed_work_sync(&local->roc_work);
cancel_work_sync(&local->restart_work);
cancel_work_sync(&local->reconfig_filter);
cancel_work_sync(&local->tdls_chsw_work);
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index b3b44a5dd..dadf8dc6f 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -968,8 +968,8 @@ int mesh_path_send_to_gates(struct mesh_path *mpath)
copy = true;
} else {
mpath_dbg(sdata,
- "Not forwarding %p (flags %#x)\n",
- gate->mpath, gate->mpath->flags);
+ "Not forwarding to %pM (flags %#x)\n",
+ gate->mpath->dst, gate->mpath->flags);
}
}
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 83097c383..bfbb1acaf 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1935,7 +1935,8 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
sdata->u.mgd.flags |= IEEE80211_STA_RESET_SIGNAL_AVE;
- if (sdata->vif.p2p) {
+ if (sdata->vif.p2p ||
+ sdata->vif.driver_flags & IEEE80211_VIF_GET_NOA_UPDATE) {
const struct cfg80211_bss_ies *ies;
rcu_read_lock();
@@ -3463,7 +3464,8 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
}
}
- if (sdata->vif.p2p) {
+ if (sdata->vif.p2p ||
+ sdata->vif.driver_flags & IEEE80211_VIF_GET_NOA_UPDATE) {
struct ieee80211_p2p_noa_attr noa = {};
int ret;
diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c
index 044010371..55a9c5b94 100644
--- a/net/mac80211/offchannel.c
+++ b/net/mac80211/offchannel.c
@@ -187,11 +187,77 @@ void ieee80211_offchannel_return(struct ieee80211_local *local)
false);
}
-void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc)
+static void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc)
{
- if (roc->notified)
+ /* was never transmitted */
+ if (roc->frame) {
+ cfg80211_mgmt_tx_status(&roc->sdata->wdev, roc->mgmt_tx_cookie,
+ roc->frame->data, roc->frame->len,
+ false, GFP_KERNEL);
+ ieee80211_free_txskb(&roc->sdata->local->hw, roc->frame);
+ }
+
+ if (!roc->mgmt_tx_cookie)
+ cfg80211_remain_on_channel_expired(&roc->sdata->wdev,
+ roc->cookie, roc->chan,
+ GFP_KERNEL);
+
+ list_del(&roc->list);
+ kfree(roc);
+}
+
+static unsigned long ieee80211_end_finished_rocs(struct ieee80211_local *local,
+ unsigned long now)
+{
+ struct ieee80211_roc_work *roc, *tmp;
+ long remaining_dur_min = LONG_MAX;
+
+ lockdep_assert_held(&local->mtx);
+
+ list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
+ long remaining;
+
+ if (!roc->started)
+ break;
+
+ remaining = roc->start_time +
+ msecs_to_jiffies(roc->duration) -
+ now;
+
+ /* In case of HW ROC, it is possible that the HW finished the
+ * ROC session before the actual requested time. In such a case
+ * end the ROC session (disregarding the remaining time).
+ */
+ if (roc->abort || roc->hw_begun || remaining <= 0)
+ ieee80211_roc_notify_destroy(roc);
+ else
+ remaining_dur_min = min(remaining_dur_min, remaining);
+ }
+
+ return remaining_dur_min;
+}
+
+static bool ieee80211_recalc_sw_work(struct ieee80211_local *local,
+ unsigned long now)
+{
+ long dur = ieee80211_end_finished_rocs(local, now);
+
+ if (dur == LONG_MAX)
+ return false;
+
+ mod_delayed_work(local->workqueue, &local->roc_work, dur);
+ return true;
+}
+
+static void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc,
+ unsigned long start_time)
+{
+ if (WARN_ON(roc->notified))
return;
+ roc->start_time = start_time;
+ roc->started = true;
+
if (roc->mgmt_tx_cookie) {
if (!WARN_ON(!roc->frame)) {
ieee80211_tx_skb_tid_band(roc->sdata, roc->frame, 7,
@@ -211,34 +277,18 @@ static void ieee80211_hw_roc_start(struct work_struct *work)
{
struct ieee80211_local *local =
container_of(work, struct ieee80211_local, hw_roc_start);
- struct ieee80211_roc_work *roc, *dep, *tmp;
+ struct ieee80211_roc_work *roc;
mutex_lock(&local->mtx);
- if (list_empty(&local->roc_list))
- goto out_unlock;
+ list_for_each_entry(roc, &local->roc_list, list) {
+ if (!roc->started)
+ break;
- roc = list_first_entry(&local->roc_list, struct ieee80211_roc_work,
- list);
-
- if (!roc->started)
- goto out_unlock;
-
- roc->hw_begun = true;
- roc->hw_start_time = local->hw_roc_start_time;
-
- ieee80211_handle_roc_started(roc);
- list_for_each_entry_safe(dep, tmp, &roc->dependents, list) {
- ieee80211_handle_roc_started(dep);
-
- if (dep->duration > roc->duration) {
- u32 dur = dep->duration;
- dep->duration = dur - roc->duration;
- roc->duration = dur;
- list_move(&dep->list, &roc->list);
- }
+ roc->hw_begun = true;
+ ieee80211_handle_roc_started(roc, local->hw_roc_start_time);
}
- out_unlock:
+
mutex_unlock(&local->mtx);
}
@@ -254,34 +304,40 @@ void ieee80211_ready_on_channel(struct ieee80211_hw *hw)
}
EXPORT_SYMBOL_GPL(ieee80211_ready_on_channel);
-void ieee80211_start_next_roc(struct ieee80211_local *local)
+static void _ieee80211_start_next_roc(struct ieee80211_local *local)
{
- struct ieee80211_roc_work *roc;
+ struct ieee80211_roc_work *roc, *tmp;
+ enum ieee80211_roc_type type;
+ u32 min_dur, max_dur;
lockdep_assert_held(&local->mtx);
- if (list_empty(&local->roc_list)) {
- ieee80211_run_deferred_scan(local);
+ if (WARN_ON(list_empty(&local->roc_list)))
return;
- }
roc = list_first_entry(&local->roc_list, struct ieee80211_roc_work,
list);
- if (WARN_ON_ONCE(roc->started))
+ if (WARN_ON(roc->started))
return;
- if (local->ops->remain_on_channel) {
- int ret, duration = roc->duration;
-
- /* XXX: duplicated, see ieee80211_start_roc_work() */
- if (!duration)
- duration = 10;
+ min_dur = roc->duration;
+ max_dur = roc->duration;
+ type = roc->type;
- ret = drv_remain_on_channel(local, roc->sdata, roc->chan,
- duration, roc->type);
+ list_for_each_entry(tmp, &local->roc_list, list) {
+ if (tmp == roc)
+ continue;
+ if (tmp->sdata != roc->sdata || tmp->chan != roc->chan)
+ break;
+ max_dur = max(tmp->duration, max_dur);
+ min_dur = min(tmp->duration, min_dur);
+ type = max(tmp->type, type);
+ }
- roc->started = true;
+ if (local->ops->remain_on_channel) {
+ int ret = drv_remain_on_channel(local, roc->sdata, roc->chan,
+ max_dur, type);
if (ret) {
wiphy_warn(local->hw.wiphy,
@@ -290,74 +346,24 @@ void ieee80211_start_next_roc(struct ieee80211_local *local)
* queue the work struct again to avoid recursion
* when multiple failures occur
*/
- ieee80211_remain_on_channel_expired(&local->hw);
+ list_for_each_entry(tmp, &local->roc_list, list) {
+ if (tmp->sdata != roc->sdata ||
+ tmp->chan != roc->chan)
+ break;
+ tmp->started = true;
+ tmp->abort = true;
+ }
+ ieee80211_queue_work(&local->hw, &local->hw_roc_done);
+ return;
}
- } else {
- /* delay it a bit */
- ieee80211_queue_delayed_work(&local->hw, &roc->work,
- round_jiffies_relative(HZ/2));
- }
-}
-
-void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc, bool free)
-{
- struct ieee80211_roc_work *dep, *tmp;
-
- if (WARN_ON(roc->to_be_freed))
- return;
-
- /* was never transmitted */
- if (roc->frame) {
- cfg80211_mgmt_tx_status(&roc->sdata->wdev,
- (unsigned long)roc->frame,
- roc->frame->data, roc->frame->len,
- false, GFP_KERNEL);
- kfree_skb(roc->frame);
- }
-
- if (!roc->mgmt_tx_cookie)
- cfg80211_remain_on_channel_expired(&roc->sdata->wdev,
- roc->cookie, roc->chan,
- GFP_KERNEL);
-
- list_for_each_entry_safe(dep, tmp, &roc->dependents, list)
- ieee80211_roc_notify_destroy(dep, true);
-
- if (free)
- kfree(roc);
- else
- roc->to_be_freed = true;
-}
-
-void ieee80211_sw_roc_work(struct work_struct *work)
-{
- struct ieee80211_roc_work *roc =
- container_of(work, struct ieee80211_roc_work, work.work);
- struct ieee80211_sub_if_data *sdata = roc->sdata;
- struct ieee80211_local *local = sdata->local;
- bool started, on_channel;
-
- mutex_lock(&local->mtx);
-
- if (roc->to_be_freed)
- goto out_unlock;
-
- if (roc->abort)
- goto finish;
-
- if (WARN_ON(list_empty(&local->roc_list)))
- goto out_unlock;
-
- if (WARN_ON(roc != list_first_entry(&local->roc_list,
- struct ieee80211_roc_work,
- list)))
- goto out_unlock;
-
- if (!roc->started) {
- struct ieee80211_roc_work *dep;
-
- WARN_ON(local->use_chanctx);
+ /* we'll notify about the start once the HW calls back */
+ list_for_each_entry(tmp, &local->roc_list, list) {
+ if (tmp->sdata != roc->sdata || tmp->chan != roc->chan)
+ break;
+ tmp->started = true;
+ }
+ } else {
/* If actually operating on the desired channel (with at least
* 20 MHz channel width) don't stop all the operations but still
* treat it as though the ROC operation started properly, so
@@ -377,27 +383,76 @@ void ieee80211_sw_roc_work(struct work_struct *work)
ieee80211_hw_config(local, 0);
}
- /* tell userspace or send frame */
- ieee80211_handle_roc_started(roc);
- list_for_each_entry(dep, &roc->dependents, list)
- ieee80211_handle_roc_started(dep);
+ ieee80211_queue_delayed_work(&local->hw, &local->roc_work,
+ msecs_to_jiffies(min_dur));
+
+ /* tell userspace or send frame(s) */
+ list_for_each_entry(tmp, &local->roc_list, list) {
+ if (tmp->sdata != roc->sdata || tmp->chan != roc->chan)
+ break;
- /* if it was pure TX, just finish right away */
- if (!roc->duration)
- goto finish;
+ tmp->on_channel = roc->on_channel;
+ ieee80211_handle_roc_started(tmp, jiffies);
+ }
+ }
+}
- roc->started = true;
- ieee80211_queue_delayed_work(&local->hw, &roc->work,
- msecs_to_jiffies(roc->duration));
+void ieee80211_start_next_roc(struct ieee80211_local *local)
+{
+ struct ieee80211_roc_work *roc;
+
+ lockdep_assert_held(&local->mtx);
+
+ if (list_empty(&local->roc_list)) {
+ ieee80211_run_deferred_scan(local);
+ return;
+ }
+
+ /* defer roc if driver is not started (i.e. during reconfig) */
+ if (local->in_reconfig)
+ return;
+
+ roc = list_first_entry(&local->roc_list, struct ieee80211_roc_work,
+ list);
+
+ if (WARN_ON_ONCE(roc->started))
+ return;
+
+ if (local->ops->remain_on_channel) {
+ _ieee80211_start_next_roc(local);
+ } else {
+ /* delay it a bit */
+ ieee80211_queue_delayed_work(&local->hw, &local->roc_work,
+ round_jiffies_relative(HZ/2));
+ }
+}
+
+static void __ieee80211_roc_work(struct ieee80211_local *local)
+{
+ struct ieee80211_roc_work *roc;
+ bool on_channel;
+
+ lockdep_assert_held(&local->mtx);
+
+ if (WARN_ON(local->ops->remain_on_channel))
+ return;
+
+ roc = list_first_entry_or_null(&local->roc_list,
+ struct ieee80211_roc_work, list);
+ if (!roc)
+ return;
+
+ if (!roc->started) {
+ WARN_ON(local->use_chanctx);
+ _ieee80211_start_next_roc(local);
} else {
- /* finish this ROC */
- finish:
- list_del(&roc->list);
- started = roc->started;
on_channel = roc->on_channel;
- ieee80211_roc_notify_destroy(roc, !roc->abort);
+ if (ieee80211_recalc_sw_work(local, jiffies))
+ return;
+
+ /* careful - roc pointer became invalid during recalc */
- if (started && !on_channel) {
+ if (!on_channel) {
ieee80211_flush_queues(local, NULL, false);
local->tmp_channel = NULL;
@@ -407,14 +462,17 @@ void ieee80211_sw_roc_work(struct work_struct *work)
}
ieee80211_recalc_idle(local);
-
- if (started)
- ieee80211_start_next_roc(local);
- else if (list_empty(&local->roc_list))
- ieee80211_run_deferred_scan(local);
+ ieee80211_start_next_roc(local);
}
+}
- out_unlock:
+static void ieee80211_roc_work(struct work_struct *work)
+{
+ struct ieee80211_local *local =
+ container_of(work, struct ieee80211_local, roc_work.work);
+
+ mutex_lock(&local->mtx);
+ __ieee80211_roc_work(local);
mutex_unlock(&local->mtx);
}
@@ -422,27 +480,14 @@ static void ieee80211_hw_roc_done(struct work_struct *work)
{
struct ieee80211_local *local =
container_of(work, struct ieee80211_local, hw_roc_done);
- struct ieee80211_roc_work *roc;
mutex_lock(&local->mtx);
- if (list_empty(&local->roc_list))
- goto out_unlock;
-
- roc = list_first_entry(&local->roc_list, struct ieee80211_roc_work,
- list);
-
- if (!roc->started)
- goto out_unlock;
-
- list_del(&roc->list);
-
- ieee80211_roc_notify_destroy(roc, true);
+ ieee80211_end_finished_rocs(local, jiffies);
/* if there's another roc, start it now */
ieee80211_start_next_roc(local);
- out_unlock:
mutex_unlock(&local->mtx);
}
@@ -456,47 +501,503 @@ void ieee80211_remain_on_channel_expired(struct ieee80211_hw *hw)
}
EXPORT_SYMBOL_GPL(ieee80211_remain_on_channel_expired);
-void ieee80211_roc_setup(struct ieee80211_local *local)
+static bool
+ieee80211_coalesce_hw_started_roc(struct ieee80211_local *local,
+ struct ieee80211_roc_work *new_roc,
+ struct ieee80211_roc_work *cur_roc)
{
- INIT_WORK(&local->hw_roc_start, ieee80211_hw_roc_start);
- INIT_WORK(&local->hw_roc_done, ieee80211_hw_roc_done);
- INIT_LIST_HEAD(&local->roc_list);
+ unsigned long now = jiffies;
+ unsigned long remaining;
+
+ if (WARN_ON(!cur_roc->started))
+ return false;
+
+ /* if it was scheduled in the hardware, but not started yet,
+ * we can only combine if the older one had a longer duration
+ */
+ if (!cur_roc->hw_begun && new_roc->duration > cur_roc->duration)
+ return false;
+
+ remaining = cur_roc->start_time +
+ msecs_to_jiffies(cur_roc->duration) -
+ now;
+
+ /* if it doesn't fit entirely, schedule a new one */
+ if (new_roc->duration > jiffies_to_msecs(remaining))
+ return false;
+
+ /* add just after the current one so we combine their finish later */
+ list_add(&new_roc->list, &cur_roc->list);
+
+ /* if the existing one has already begun then let this one also
+ * begin, otherwise they'll both be marked properly by the work
+ * struct that runs once the driver notifies us of the beginning
+ */
+ if (cur_roc->hw_begun) {
+ new_roc->hw_begun = true;
+ ieee80211_handle_roc_started(new_roc, now);
+ }
+
+ return true;
}
-void ieee80211_roc_purge(struct ieee80211_local *local,
- struct ieee80211_sub_if_data *sdata)
+static int ieee80211_start_roc_work(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_channel *channel,
+ unsigned int duration, u64 *cookie,
+ struct sk_buff *txskb,
+ enum ieee80211_roc_type type)
{
struct ieee80211_roc_work *roc, *tmp;
- LIST_HEAD(tmp_list);
+ bool queued = false, combine_started = true;
+ int ret;
+
+ lockdep_assert_held(&local->mtx);
+
+ if (local->use_chanctx && !local->ops->remain_on_channel)
+ return -EOPNOTSUPP;
+
+ roc = kzalloc(sizeof(*roc), GFP_KERNEL);
+ if (!roc)
+ return -ENOMEM;
+
+ /*
+ * If the duration is zero, then the driver
+ * wouldn't actually do anything. Set it to
+ * 10 for now.
+ *
+ * TODO: cancel the off-channel operation
+ * when we get the SKB's TX status and
+ * the wait time was zero before.
+ */
+ if (!duration)
+ duration = 10;
+
+ roc->chan = channel;
+ roc->duration = duration;
+ roc->req_duration = duration;
+ roc->frame = txskb;
+ roc->type = type;
+ roc->sdata = sdata;
+
+ /*
+ * cookie is either the roc cookie (for normal roc)
+ * or the SKB (for mgmt TX)
+ */
+ if (!txskb) {
+ roc->cookie = ieee80211_mgmt_tx_cookie(local);
+ *cookie = roc->cookie;
+ } else {
+ roc->mgmt_tx_cookie = *cookie;
+ }
+
+ /* if there's no need to queue, handle it immediately */
+ if (list_empty(&local->roc_list) &&
+ !local->scanning && !ieee80211_is_radar_required(local)) {
+ /* if not HW assist, just queue & schedule work */
+ if (!local->ops->remain_on_channel) {
+ list_add_tail(&roc->list, &local->roc_list);
+ ieee80211_queue_delayed_work(&local->hw,
+ &local->roc_work, 0);
+ } else {
+ /* otherwise actually kick it off here
+ * (for error handling)
+ */
+ ret = drv_remain_on_channel(local, sdata, channel,
+ duration, type);
+ if (ret) {
+ kfree(roc);
+ return ret;
+ }
+ roc->started = true;
+ list_add_tail(&roc->list, &local->roc_list);
+ }
+
+ return 0;
+ }
+
+ /* otherwise handle queueing */
+
+ list_for_each_entry(tmp, &local->roc_list, list) {
+ if (tmp->chan != channel || tmp->sdata != sdata)
+ continue;
+
+ /*
+ * Extend this ROC if possible: If it hasn't started, add
+ * just after the new one to combine.
+ */
+ if (!tmp->started) {
+ list_add(&roc->list, &tmp->list);
+ queued = true;
+ break;
+ }
+
+ if (!combine_started)
+ continue;
+
+ if (!local->ops->remain_on_channel) {
+ /* If there's no hardware remain-on-channel, and
+ * doing so won't push us over the maximum r-o-c
+ * we allow, then we can just add the new one to
+ * the list and mark it as having started now.
+ * If it would push over the limit, don't try to
+ * combine with other started ones (that haven't
+ * been running as long) but potentially sort it
+ * with others that had the same fate.
+ */
+ unsigned long now = jiffies;
+ u32 elapsed = jiffies_to_msecs(now - tmp->start_time);
+ struct wiphy *wiphy = local->hw.wiphy;
+ u32 max_roc = wiphy->max_remain_on_channel_duration;
+
+ if (elapsed + roc->duration > max_roc) {
+ combine_started = false;
+ continue;
+ }
+
+ list_add(&roc->list, &tmp->list);
+ queued = true;
+ roc->on_channel = tmp->on_channel;
+ ieee80211_handle_roc_started(roc, now);
+ ieee80211_recalc_sw_work(local, now);
+ break;
+ }
+
+ queued = ieee80211_coalesce_hw_started_roc(local, roc, tmp);
+ if (queued)
+ break;
+ /* if it wasn't queued, perhaps it can be combined with
+ * another that also couldn't get combined previously,
+ * but no need to check for already started ones, since
+ * that can't work.
+ */
+ combine_started = false;
+ }
+
+ if (!queued)
+ list_add_tail(&roc->list, &local->roc_list);
+
+ return 0;
+}
+
+int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
+ struct ieee80211_channel *chan,
+ unsigned int duration, u64 *cookie)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
+ struct ieee80211_local *local = sdata->local;
+ int ret;
+
+ mutex_lock(&local->mtx);
+ ret = ieee80211_start_roc_work(local, sdata, chan,
+ duration, cookie, NULL,
+ IEEE80211_ROC_TYPE_NORMAL);
+ mutex_unlock(&local->mtx);
+
+ return ret;
+}
+
+static int ieee80211_cancel_roc(struct ieee80211_local *local,
+ u64 cookie, bool mgmt_tx)
+{
+ struct ieee80211_roc_work *roc, *tmp, *found = NULL;
+ int ret;
+
+ if (!cookie)
+ return -ENOENT;
mutex_lock(&local->mtx);
list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
- if (sdata && roc->sdata != sdata)
+ if (!mgmt_tx && roc->cookie != cookie)
+ continue;
+ else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
continue;
- if (roc->started && local->ops->remain_on_channel) {
- /* can race, so ignore return value */
- drv_cancel_remain_on_channel(local);
+ found = roc;
+ break;
+ }
+
+ if (!found) {
+ mutex_unlock(&local->mtx);
+ return -ENOENT;
+ }
+
+ if (!found->started) {
+ ieee80211_roc_notify_destroy(found);
+ goto out_unlock;
+ }
+
+ if (local->ops->remain_on_channel) {
+ ret = drv_cancel_remain_on_channel(local);
+ if (WARN_ON_ONCE(ret)) {
+ mutex_unlock(&local->mtx);
+ return ret;
}
- list_move_tail(&roc->list, &tmp_list);
- roc->abort = true;
+ /* TODO:
+ * if multiple items were combined here then we really shouldn't
+ * cancel them all - we should wait for as much time as needed
+ * for the longest remaining one, and only then cancel ...
+ */
+ list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
+ if (!roc->started)
+ break;
+ if (roc == found)
+ found = NULL;
+ ieee80211_roc_notify_destroy(roc);
+ }
+
+ /* that really must not happen - it was started */
+ WARN_ON(found);
+
+ ieee80211_start_next_roc(local);
+ } else {
+ /* go through work struct to return to the operating channel */
+ found->abort = true;
+ mod_delayed_work(local->workqueue, &local->roc_work, 0);
}
+
+ out_unlock:
mutex_unlock(&local->mtx);
- list_for_each_entry_safe(roc, tmp, &tmp_list, list) {
- if (local->ops->remain_on_channel) {
- list_del(&roc->list);
- ieee80211_roc_notify_destroy(roc, true);
+ return 0;
+}
+
+int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
+ struct wireless_dev *wdev, u64 cookie)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
+ struct ieee80211_local *local = sdata->local;
+
+ return ieee80211_cancel_roc(local, cookie, false);
+}
+
+int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
+ struct cfg80211_mgmt_tx_params *params, u64 *cookie)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
+ struct ieee80211_local *local = sdata->local;
+ struct sk_buff *skb;
+ struct sta_info *sta;
+ const struct ieee80211_mgmt *mgmt = (void *)params->buf;
+ bool need_offchan = false;
+ u32 flags;
+ int ret;
+ u8 *data;
+
+ if (params->dont_wait_for_ack)
+ flags = IEEE80211_TX_CTL_NO_ACK;
+ else
+ flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
+ IEEE80211_TX_CTL_REQ_TX_STATUS;
+
+ if (params->no_cck)
+ flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
+
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_ADHOC:
+ if (!sdata->vif.bss_conf.ibss_joined)
+ need_offchan = true;
+ /* fall through */
+#ifdef CONFIG_MAC80211_MESH
+ case NL80211_IFTYPE_MESH_POINT:
+ if (ieee80211_vif_is_mesh(&sdata->vif) &&
+ !sdata->u.mesh.mesh_id_len)
+ need_offchan = true;
+ /* fall through */
+#endif
+ case NL80211_IFTYPE_AP:
+ case NL80211_IFTYPE_AP_VLAN:
+ case NL80211_IFTYPE_P2P_GO:
+ if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
+ !ieee80211_vif_is_mesh(&sdata->vif) &&
+ !rcu_access_pointer(sdata->bss->beacon))
+ need_offchan = true;
+ if (!ieee80211_is_action(mgmt->frame_control) ||
+ mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
+ mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
+ mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
+ break;
+ rcu_read_lock();
+ sta = sta_info_get(sdata, mgmt->da);
+ rcu_read_unlock();
+ if (!sta)
+ return -ENOLINK;
+ break;
+ case NL80211_IFTYPE_STATION:
+ case NL80211_IFTYPE_P2P_CLIENT:
+ sdata_lock(sdata);
+ if (!sdata->u.mgd.associated ||
+ (params->offchan && params->wait &&
+ local->ops->remain_on_channel &&
+ memcmp(sdata->u.mgd.associated->bssid,
+ mgmt->bssid, ETH_ALEN)))
+ need_offchan = true;
+ sdata_unlock(sdata);
+ break;
+ case NL80211_IFTYPE_P2P_DEVICE:
+ need_offchan = true;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ /* configurations requiring offchan cannot work if no channel has been
+ * specified
+ */
+ if (need_offchan && !params->chan)
+ return -EINVAL;
+
+ mutex_lock(&local->mtx);
+
+ /* Check if the operating channel is the requested channel */
+ if (!need_offchan) {
+ struct ieee80211_chanctx_conf *chanctx_conf;
+
+ rcu_read_lock();
+ chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+
+ if (chanctx_conf) {
+ need_offchan = params->chan &&
+ (params->chan !=
+ chanctx_conf->def.chan);
+ } else if (!params->chan) {
+ ret = -EINVAL;
+ rcu_read_unlock();
+ goto out_unlock;
} else {
- ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
+ need_offchan = true;
+ }
+ rcu_read_unlock();
+ }
+
+ if (need_offchan && !params->offchan) {
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
+ if (!skb) {
+ ret = -ENOMEM;
+ goto out_unlock;
+ }
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+
+ data = skb_put(skb, params->len);
+ memcpy(data, params->buf, params->len);
+
+ /* Update CSA counters */
+ if (sdata->vif.csa_active &&
+ (sdata->vif.type == NL80211_IFTYPE_AP ||
+ sdata->vif.type == NL80211_IFTYPE_MESH_POINT ||
+ sdata->vif.type == NL80211_IFTYPE_ADHOC) &&
+ params->n_csa_offsets) {
+ int i;
+ struct beacon_data *beacon = NULL;
+
+ rcu_read_lock();
+
+ if (sdata->vif.type == NL80211_IFTYPE_AP)
+ beacon = rcu_dereference(sdata->u.ap.beacon);
+ else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+ beacon = rcu_dereference(sdata->u.ibss.presp);
+ else if (ieee80211_vif_is_mesh(&sdata->vif))
+ beacon = rcu_dereference(sdata->u.mesh.beacon);
+
+ if (beacon)
+ for (i = 0; i < params->n_csa_offsets; i++)
+ data[params->csa_offsets[i]] =
+ beacon->csa_current_counter;
+
+ rcu_read_unlock();
+ }
- /* work will clean up etc */
- flush_delayed_work(&roc->work);
- WARN_ON(!roc->to_be_freed);
- kfree(roc);
+ IEEE80211_SKB_CB(skb)->flags = flags;
+
+ skb->dev = sdata->dev;
+
+ if (!params->dont_wait_for_ack) {
+ /* make a copy to preserve the frame contents
+ * in case of encryption.
+ */
+ ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_KERNEL);
+ if (ret) {
+ kfree_skb(skb);
+ goto out_unlock;
}
+ } else {
+ /* Assign a dummy non-zero cookie, it's not sent to
+ * userspace in this case but we rely on its value
+ * internally in the need_offchan case to distinguish
+ * mgmt-tx from remain-on-channel.
+ */
+ *cookie = 0xffffffff;
}
- WARN_ON_ONCE(!list_empty(&tmp_list));
+ if (!need_offchan) {
+ ieee80211_tx_skb(sdata, skb);
+ ret = 0;
+ goto out_unlock;
+ }
+
+ IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
+ IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
+ if (ieee80211_hw_check(&local->hw, QUEUE_CONTROL))
+ IEEE80211_SKB_CB(skb)->hw_queue =
+ local->hw.offchannel_tx_hw_queue;
+
+ /* This will handle all kinds of coalescing and immediate TX */
+ ret = ieee80211_start_roc_work(local, sdata, params->chan,
+ params->wait, cookie, skb,
+ IEEE80211_ROC_TYPE_MGMT_TX);
+ if (ret)
+ ieee80211_free_txskb(&local->hw, skb);
+ out_unlock:
+ mutex_unlock(&local->mtx);
+ return ret;
+}
+
+int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
+ struct wireless_dev *wdev, u64 cookie)
+{
+ struct ieee80211_local *local = wiphy_priv(wiphy);
+
+ return ieee80211_cancel_roc(local, cookie, true);
+}
+
+void ieee80211_roc_setup(struct ieee80211_local *local)
+{
+ INIT_WORK(&local->hw_roc_start, ieee80211_hw_roc_start);
+ INIT_WORK(&local->hw_roc_done, ieee80211_hw_roc_done);
+ INIT_DELAYED_WORK(&local->roc_work, ieee80211_roc_work);
+ INIT_LIST_HEAD(&local->roc_list);
+}
+
+void ieee80211_roc_purge(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_roc_work *roc, *tmp;
+ bool work_to_do = false;
+
+ mutex_lock(&local->mtx);
+ list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
+ if (sdata && roc->sdata != sdata)
+ continue;
+
+ if (roc->started) {
+ if (local->ops->remain_on_channel) {
+ /* can race, so ignore return value */
+ drv_cancel_remain_on_channel(local);
+ ieee80211_roc_notify_destroy(roc);
+ } else {
+ roc->abort = true;
+ work_to_do = true;
+ }
+ } else {
+ ieee80211_roc_notify_destroy(roc);
+ }
+ }
+ if (work_to_do)
+ __ieee80211_roc_work(local);
+ mutex_unlock(&local->mtx);
}
diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c
index 3ece7d103..b54f398cd 100644
--- a/net/mac80211/rc80211_minstrel.c
+++ b/net/mac80211/rc80211_minstrel.c
@@ -711,7 +711,7 @@ static u32 minstrel_get_expected_throughput(void *priv_sta)
* computing cur_tp
*/
tmp_mrs = &mi->r[idx].stats;
- tmp_cur_tp = minstrel_get_tp_avg(&mi->r[idx], tmp_mrs->prob_ewma);
+ tmp_cur_tp = minstrel_get_tp_avg(&mi->r[idx], tmp_mrs->prob_ewma) * 10;
tmp_cur_tp = tmp_cur_tp * 1200 * 8 / 1024;
return tmp_cur_tp;
diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index 3928dbd24..370d677b5 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -414,15 +414,16 @@ minstrel_ht_set_best_prob_rate(struct minstrel_ht_sta *mi, u16 index)
(max_tp_group != MINSTREL_CCK_GROUP))
return;
+ max_gpr_group = mg->max_group_prob_rate / MCS_GROUP_RATES;
+ max_gpr_idx = mg->max_group_prob_rate % MCS_GROUP_RATES;
+ max_gpr_prob = mi->groups[max_gpr_group].rates[max_gpr_idx].prob_ewma;
+
if (mrs->prob_ewma > MINSTREL_FRAC(75, 100)) {
cur_tp_avg = minstrel_ht_get_tp_avg(mi, cur_group, cur_idx,
mrs->prob_ewma);
if (cur_tp_avg > tmp_tp_avg)
mi->max_prob_rate = index;
- max_gpr_group = mg->max_group_prob_rate / MCS_GROUP_RATES;
- max_gpr_idx = mg->max_group_prob_rate % MCS_GROUP_RATES;
- max_gpr_prob = mi->groups[max_gpr_group].rates[max_gpr_idx].prob_ewma;
max_gpr_tp_avg = minstrel_ht_get_tp_avg(mi, max_gpr_group,
max_gpr_idx,
max_gpr_prob);
@@ -431,7 +432,7 @@ minstrel_ht_set_best_prob_rate(struct minstrel_ht_sta *mi, u16 index)
} else {
if (mrs->prob_ewma > tmp_prob)
mi->max_prob_rate = index;
- if (mrs->prob_ewma > mg->rates[mg->max_group_prob_rate].prob_ewma)
+ if (mrs->prob_ewma > max_gpr_prob)
mg->max_group_prob_rate = index;
}
}
@@ -691,7 +692,7 @@ minstrel_aggr_check(struct ieee80211_sta *pubsta, struct sk_buff *skb)
if (likely(sta->ampdu_mlme.tid_tx[tid]))
return;
- ieee80211_start_tx_ba_session(pubsta, tid, 5000);
+ ieee80211_start_tx_ba_session(pubsta, tid, 0);
}
static void
@@ -871,7 +872,7 @@ minstrel_ht_set_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi,
* - if station is in dynamic SMPS (and streams > 1)
* - for fallback rates, to increase chances of getting through
*/
- if (offset > 0 &&
+ if (offset > 0 ||
(mi->sta->smps_mode == IEEE80211_SMPS_DYNAMIC &&
group->streams > 1)) {
ratetbl->rate[offset].count = ratetbl->rate[offset].count_rts;
@@ -1334,7 +1335,8 @@ static u32 minstrel_ht_get_expected_throughput(void *priv_sta)
prob = mi->groups[i].rates[j].prob_ewma;
/* convert tp_avg from pkt per second in kbps */
- tp_avg = minstrel_ht_get_tp_avg(mi, i, j, prob) * AVG_PKT_SIZE * 8 / 1024;
+ tp_avg = minstrel_ht_get_tp_avg(mi, i, j, prob) * 10;
+ tp_avg = tp_avg * AVG_PKT_SIZE * 8 / 1024;
return tp_avg;
}
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 82af407fe..60d093f40 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -661,8 +661,7 @@ static void ieee80211_parse_qos(struct ieee80211_rx_data *rx)
static void ieee80211_verify_alignment(struct ieee80211_rx_data *rx)
{
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- WARN_ONCE((unsigned long)rx->skb->data & 1,
- "unaligned packet at 0x%p\n", rx->skb->data);
+ WARN_ON_ONCE((unsigned long)rx->skb->data & 1);
#endif
}
@@ -1754,7 +1753,7 @@ ieee80211_reassemble_add(struct ieee80211_sub_if_data *sdata,
entry->seq = seq;
entry->rx_queue = rx_queue;
entry->last_frag = frag;
- entry->ccmp = 0;
+ entry->check_sequential_pn = false;
entry->extra_len = 0;
return entry;
@@ -1850,15 +1849,27 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
rx->seqno_idx, &(rx->skb));
if (rx->key &&
(rx->key->conf.cipher == WLAN_CIPHER_SUITE_CCMP ||
- rx->key->conf.cipher == WLAN_CIPHER_SUITE_CCMP_256) &&
+ rx->key->conf.cipher == WLAN_CIPHER_SUITE_CCMP_256 ||
+ rx->key->conf.cipher == WLAN_CIPHER_SUITE_GCMP ||
+ rx->key->conf.cipher == WLAN_CIPHER_SUITE_GCMP_256) &&
ieee80211_has_protected(fc)) {
int queue = rx->security_idx;
- /* Store CCMP PN so that we can verify that the next
- * fragment has a sequential PN value. */
- entry->ccmp = 1;
+
+ /* Store CCMP/GCMP PN so that we can verify that the
+ * next fragment has a sequential PN value.
+ */
+ entry->check_sequential_pn = true;
memcpy(entry->last_pn,
rx->key->u.ccmp.rx_pn[queue],
IEEE80211_CCMP_PN_LEN);
+ BUILD_BUG_ON(offsetof(struct ieee80211_key,
+ u.ccmp.rx_pn) !=
+ offsetof(struct ieee80211_key,
+ u.gcmp.rx_pn));
+ BUILD_BUG_ON(sizeof(rx->key->u.ccmp.rx_pn[queue]) !=
+ sizeof(rx->key->u.gcmp.rx_pn[queue]));
+ BUILD_BUG_ON(IEEE80211_CCMP_PN_LEN !=
+ IEEE80211_GCMP_PN_LEN);
}
return RX_QUEUED;
}
@@ -1873,15 +1884,21 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
return RX_DROP_MONITOR;
}
- /* Verify that MPDUs within one MSDU have sequential PN values.
- * (IEEE 802.11i, 8.3.3.4.5) */
- if (entry->ccmp) {
+ /* "The receiver shall discard MSDUs and MMPDUs whose constituent
+ * MPDU PN values are not incrementing in steps of 1."
+ * see IEEE P802.11-REVmc/D5.0, 12.5.3.4.4, item d (for CCMP)
+ * and IEEE P802.11-REVmc/D5.0, 12.5.5.4.4, item d (for GCMP)
+ */
+ if (entry->check_sequential_pn) {
int i;
u8 pn[IEEE80211_CCMP_PN_LEN], *rpn;
int queue;
+
if (!rx->key ||
(rx->key->conf.cipher != WLAN_CIPHER_SUITE_CCMP &&
- rx->key->conf.cipher != WLAN_CIPHER_SUITE_CCMP_256))
+ rx->key->conf.cipher != WLAN_CIPHER_SUITE_CCMP_256 &&
+ rx->key->conf.cipher != WLAN_CIPHER_SUITE_GCMP &&
+ rx->key->conf.cipher != WLAN_CIPHER_SUITE_GCMP_256))
return RX_DROP_UNUSABLE;
memcpy(pn, entry->last_pn, IEEE80211_CCMP_PN_LEN);
for (i = IEEE80211_CCMP_PN_LEN - 1; i >= 0; i--) {
@@ -3367,6 +3384,7 @@ static bool ieee80211_accept_frame(struct ieee80211_rx_data *rx)
return false;
/* ignore action frames to TDLS-peers */
if (ieee80211_is_action(hdr->frame_control) &&
+ !is_broadcast_ether_addr(bssid) &&
!ether_addr_equal(bssid, hdr->addr1))
return false;
}
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index acbe182b7..ae980ce8d 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -1223,6 +1223,14 @@ void ieee80211_sched_scan_stopped(struct ieee80211_hw *hw)
trace_api_sched_scan_stopped(local);
+ /*
+ * this shouldn't really happen, so for simplicity
+ * simply ignore it, and let mac80211 reconfigure
+ * the sched scan later on.
+ */
+ if (local->in_reconfig)
+ return;
+
schedule_work(&local->sched_scan_stopped_work);
}
EXPORT_SYMBOL(ieee80211_sched_scan_stopped);
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index f91d18732..a4a4f89d3 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -2,6 +2,7 @@
* Copyright 2002-2005, Instant802 Networks, Inc.
* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
* Copyright 2013-2014 Intel Mobile Communications GmbH
+ * Copyright (C) 2015 Intel Deutschland GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -435,6 +436,19 @@ static int sta_info_insert_check(struct sta_info *sta)
is_multicast_ether_addr(sta->sta.addr)))
return -EINVAL;
+ /* Strictly speaking this isn't necessary as we hold the mutex, but
+ * the rhashtable code can't really deal with that distinction. We
+ * do require the mutex for correctness though.
+ */
+ rcu_read_lock();
+ lockdep_assert_held(&sdata->local->sta_mtx);
+ if (ieee80211_hw_check(&sdata->local->hw, NEEDS_UNIQUE_STA_ADDR) &&
+ ieee80211_find_sta_by_ifaddr(&sdata->local->hw, sta->addr, NULL)) {
+ rcu_read_unlock();
+ return -ENOTUNIQ;
+ }
+ rcu_read_unlock();
+
return 0;
}
@@ -554,14 +568,15 @@ int sta_info_insert_rcu(struct sta_info *sta) __acquires(RCU)
might_sleep();
+ mutex_lock(&local->sta_mtx);
+
err = sta_info_insert_check(sta);
if (err) {
+ mutex_unlock(&local->sta_mtx);
rcu_read_lock();
goto out_free;
}
- mutex_lock(&local->sta_mtx);
-
err = sta_info_insert_finish(sta);
if (err)
goto out_free;
@@ -868,6 +883,7 @@ static int __must_check __sta_info_destroy_part1(struct sta_info *sta)
}
list_del_rcu(&sta->list);
+ sta->removed = true;
drv_sta_pre_rcu_remove(local, sta->sdata, sta);
@@ -1230,11 +1246,11 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta)
ieee80211_check_fast_xmit(sta);
}
-static void ieee80211_send_null_response(struct ieee80211_sub_if_data *sdata,
- struct sta_info *sta, int tid,
+static void ieee80211_send_null_response(struct sta_info *sta, int tid,
enum ieee80211_frame_release_type reason,
- bool call_driver)
+ bool call_driver, bool more_data)
{
+ struct ieee80211_sub_if_data *sdata = sta->sdata;
struct ieee80211_local *local = sdata->local;
struct ieee80211_qos_hdr *nullfunc;
struct sk_buff *skb;
@@ -1274,9 +1290,13 @@ static void ieee80211_send_null_response(struct ieee80211_sub_if_data *sdata,
if (qos) {
nullfunc->qos_ctrl = cpu_to_le16(tid);
- if (reason == IEEE80211_FRAME_RELEASE_UAPSD)
+ if (reason == IEEE80211_FRAME_RELEASE_UAPSD) {
nullfunc->qos_ctrl |=
cpu_to_le16(IEEE80211_QOS_CTL_EOSP);
+ if (more_data)
+ nullfunc->frame_control |=
+ cpu_to_le16(IEEE80211_FCTL_MOREDATA);
+ }
}
info = IEEE80211_SKB_CB(skb);
@@ -1323,22 +1343,48 @@ static int find_highest_prio_tid(unsigned long tids)
return fls(tids) - 1;
}
+/* Indicates if the MORE_DATA bit should be set in the last
+ * frame obtained by ieee80211_sta_ps_get_frames.
+ * Note that driver_release_tids is relevant only if
+ * reason = IEEE80211_FRAME_RELEASE_PSPOLL
+ */
+static bool
+ieee80211_sta_ps_more_data(struct sta_info *sta, u8 ignored_acs,
+ enum ieee80211_frame_release_type reason,
+ unsigned long driver_release_tids)
+{
+ int ac;
+
+ /* If the driver has data on more than one TID then
+ * certainly there's more data if we release just a
+ * single frame now (from a single TID). This will
+ * only happen for PS-Poll.
+ */
+ if (reason == IEEE80211_FRAME_RELEASE_PSPOLL &&
+ hweight16(driver_release_tids) > 1)
+ return true;
+
+ for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
+ if (ignored_acs & BIT(ac))
+ continue;
+
+ if (!skb_queue_empty(&sta->tx_filtered[ac]) ||
+ !skb_queue_empty(&sta->ps_tx_buf[ac]))
+ return true;
+ }
+
+ return false;
+}
+
static void
-ieee80211_sta_ps_deliver_response(struct sta_info *sta,
- int n_frames, u8 ignored_acs,
- enum ieee80211_frame_release_type reason)
+ieee80211_sta_ps_get_frames(struct sta_info *sta, int n_frames, u8 ignored_acs,
+ enum ieee80211_frame_release_type reason,
+ struct sk_buff_head *frames,
+ unsigned long *driver_release_tids)
{
struct ieee80211_sub_if_data *sdata = sta->sdata;
struct ieee80211_local *local = sdata->local;
- bool more_data = false;
int ac;
- unsigned long driver_release_tids = 0;
- struct sk_buff_head frames;
-
- /* Service or PS-Poll period starts */
- set_sta_flag(sta, WLAN_STA_SP);
-
- __skb_queue_head_init(&frames);
/* Get response frame(s) and more data bit for the last one. */
for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
@@ -1352,26 +1398,13 @@ ieee80211_sta_ps_deliver_response(struct sta_info *sta,
/* if we already have frames from software, then we can't also
* release from hardware queues
*/
- if (skb_queue_empty(&frames)) {
- driver_release_tids |= sta->driver_buffered_tids & tids;
- driver_release_tids |= sta->txq_buffered_tids & tids;
+ if (skb_queue_empty(frames)) {
+ *driver_release_tids |=
+ sta->driver_buffered_tids & tids;
+ *driver_release_tids |= sta->txq_buffered_tids & tids;
}
- if (driver_release_tids) {
- /* If the driver has data on more than one TID then
- * certainly there's more data if we release just a
- * single frame now (from a single TID). This will
- * only happen for PS-Poll.
- */
- if (reason == IEEE80211_FRAME_RELEASE_PSPOLL &&
- hweight16(driver_release_tids) > 1) {
- more_data = true;
- driver_release_tids =
- BIT(find_highest_prio_tid(
- driver_release_tids));
- break;
- }
- } else {
+ if (!*driver_release_tids) {
struct sk_buff *skb;
while (n_frames > 0) {
@@ -1385,20 +1418,44 @@ ieee80211_sta_ps_deliver_response(struct sta_info *sta,
if (!skb)
break;
n_frames--;
- __skb_queue_tail(&frames, skb);
+ __skb_queue_tail(frames, skb);
}
}
- /* If we have more frames buffered on this AC, then set the
- * more-data bit and abort the loop since we can't send more
- * data from other ACs before the buffered frames from this.
+ /* If we have more frames buffered on this AC, then abort the
+ * loop since we can't send more data from other ACs before
+ * the buffered frames from this.
*/
if (!skb_queue_empty(&sta->tx_filtered[ac]) ||
- !skb_queue_empty(&sta->ps_tx_buf[ac])) {
- more_data = true;
+ !skb_queue_empty(&sta->ps_tx_buf[ac]))
break;
- }
}
+}
+
+static void
+ieee80211_sta_ps_deliver_response(struct sta_info *sta,
+ int n_frames, u8 ignored_acs,
+ enum ieee80211_frame_release_type reason)
+{
+ struct ieee80211_sub_if_data *sdata = sta->sdata;
+ struct ieee80211_local *local = sdata->local;
+ unsigned long driver_release_tids = 0;
+ struct sk_buff_head frames;
+ bool more_data;
+
+ /* Service or PS-Poll period starts */
+ set_sta_flag(sta, WLAN_STA_SP);
+
+ __skb_queue_head_init(&frames);
+
+ ieee80211_sta_ps_get_frames(sta, n_frames, ignored_acs, reason,
+ &frames, &driver_release_tids);
+
+ more_data = ieee80211_sta_ps_more_data(sta, ignored_acs, reason, driver_release_tids);
+
+ if (driver_release_tids && reason == IEEE80211_FRAME_RELEASE_PSPOLL)
+ driver_release_tids =
+ BIT(find_highest_prio_tid(driver_release_tids));
if (skb_queue_empty(&frames) && !driver_release_tids) {
int tid;
@@ -1421,7 +1478,7 @@ ieee80211_sta_ps_deliver_response(struct sta_info *sta,
/* This will evaluate to 1, 3, 5 or 7. */
tid = 7 - ((ffs(~ignored_acs) - 1) << 1);
- ieee80211_send_null_response(sdata, sta, tid, reason, true);
+ ieee80211_send_null_response(sta, tid, reason, true, false);
} else if (!driver_release_tids) {
struct sk_buff_head pending;
struct sk_buff *skb;
@@ -1521,8 +1578,8 @@ ieee80211_sta_ps_deliver_response(struct sta_info *sta,
if (need_null)
ieee80211_send_null_response(
- sdata, sta, find_highest_prio_tid(tids),
- reason, false);
+ sta, find_highest_prio_tid(tids),
+ reason, false, false);
sta_info_recalc_tim(sta);
} else {
@@ -1660,6 +1717,22 @@ void ieee80211_sta_eosp(struct ieee80211_sta *pubsta)
}
EXPORT_SYMBOL(ieee80211_sta_eosp);
+void ieee80211_send_eosp_nullfunc(struct ieee80211_sta *pubsta, int tid)
+{
+ struct sta_info *sta = container_of(pubsta, struct sta_info, sta);
+ enum ieee80211_frame_release_type reason;
+ bool more_data;
+
+ trace_api_send_eosp_nullfunc(sta->local, pubsta, tid);
+
+ reason = IEEE80211_FRAME_RELEASE_UAPSD;
+ more_data = ieee80211_sta_ps_more_data(sta, ~sta->sta.uapsd_queues,
+ reason, 0);
+
+ ieee80211_send_null_response(sta, tid, reason, false, more_data);
+}
+EXPORT_SYMBOL(ieee80211_send_eosp_nullfunc);
+
void ieee80211_sta_set_buffered(struct ieee80211_sta *pubsta,
u8 tid, bool buffered)
{
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 2cafb21b4..d6051629e 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -367,6 +367,7 @@ DECLARE_EWMA(signal, 1024, 8)
* @mesh: mesh STA information
* @debugfs: debug filesystem info
* @dead: set to true when sta is unlinked
+ * @removed: set to true when sta is being removed from sta_list
* @uploaded: set to true when sta is uploaded to the driver
* @sta: station information we share with the driver
* @sta_state: duplicates information about station state (for debug)
@@ -412,6 +413,7 @@ struct sta_info {
u16 listen_interval;
bool dead;
+ bool removed;
bool uploaded;
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index 5bad05e9a..6101deb80 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -51,6 +51,11 @@ static void ieee80211_handle_filtered_frame(struct ieee80211_local *local,
struct ieee80211_hdr *hdr = (void *)skb->data;
int ac;
+ if (info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER) {
+ ieee80211_free_txskb(&local->hw, skb);
+ return;
+ }
+
/*
* This skb 'survived' a round-trip through the driver, and
* hopefully the driver didn't mangle it too badly. However,
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index 56c6d6cfa..a6b444277 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -2027,6 +2027,31 @@ TRACE_EVENT(api_eosp,
)
);
+TRACE_EVENT(api_send_eosp_nullfunc,
+ TP_PROTO(struct ieee80211_local *local,
+ struct ieee80211_sta *sta,
+ u8 tid),
+
+ TP_ARGS(local, sta, tid),
+
+ TP_STRUCT__entry(
+ LOCAL_ENTRY
+ STA_ENTRY
+ __field(u8, tid)
+ ),
+
+ TP_fast_assign(
+ LOCAL_ASSIGN;
+ STA_ASSIGN;
+ __entry->tid = tid;
+ ),
+
+ TP_printk(
+ LOCAL_PR_FMT STA_PR_FMT " tid:%d",
+ LOCAL_PR_ARG, STA_PR_ARG, __entry->tid
+ )
+);
+
TRACE_EVENT(api_sta_set_buffered,
TP_PROTO(struct ieee80211_local *local,
struct ieee80211_sta *sta,
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index bdc224d50..3311ce0f3 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1431,7 +1431,7 @@ static bool __ieee80211_tx(struct ieee80211_local *local,
info->hw_queue =
vif->hw_queue[skb_get_queue_mapping(skb)];
} else if (ieee80211_hw_check(&local->hw, QUEUE_CONTROL)) {
- dev_kfree_skb(skb);
+ ieee80211_purge_tx_queue(&local->hw, skbs);
return true;
} else
vif = NULL;
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 33344f5a6..58f58bd52 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -288,10 +288,13 @@ static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue,
if (!test_bit(reason, &local->queue_stop_reasons[queue]))
return;
- if (!refcounted)
+ if (!refcounted) {
local->q_stop_reasons[queue][reason] = 0;
- else
+ } else {
local->q_stop_reasons[queue][reason]--;
+ if (WARN_ON(local->q_stop_reasons[queue][reason] < 0))
+ local->q_stop_reasons[queue][reason] = 0;
+ }
if (local->q_stop_reasons[queue][reason] == 0)
__clear_bit(reason, &local->queue_stop_reasons[queue]);
@@ -2040,16 +2043,26 @@ int ieee80211_reconfig(struct ieee80211_local *local)
*/
if (sched_scan_req->n_scan_plans > 1 ||
__ieee80211_request_sched_scan_start(sched_scan_sdata,
- sched_scan_req))
+ sched_scan_req)) {
+ RCU_INIT_POINTER(local->sched_scan_sdata, NULL);
+ RCU_INIT_POINTER(local->sched_scan_req, NULL);
sched_scan_stopped = true;
+ }
mutex_unlock(&local->mtx);
if (sched_scan_stopped)
cfg80211_sched_scan_stopped_rtnl(local->hw.wiphy);
wake_up:
- local->in_reconfig = false;
- barrier();
+ if (local->in_reconfig) {
+ local->in_reconfig = false;
+ barrier();
+
+ /* Restart deferred ROCs */
+ mutex_lock(&local->mtx);
+ ieee80211_start_next_roc(local);
+ mutex_unlock(&local->mtx);
+ }
if (local->monitors == local->open_count && local->monitors > 0)
ieee80211_add_virtual_monitor(local);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-16 18:11:20 +0000