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-rw-r--r--net/mac80211/status.c163
1 files changed, 95 insertions, 68 deletions
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index 005fdbe39a8b..45628f37c083 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -181,7 +181,7 @@ static void ieee80211_frame_acked(struct sta_info *sta, struct sk_buff *skb)
struct ieee80211_local *local = sta->local;
struct ieee80211_sub_if_data *sdata = sta->sdata;
- if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
+ if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS))
sta->last_rx = jiffies;
if (ieee80211_is_data_qos(mgmt->frame_control)) {
@@ -414,8 +414,7 @@ static void ieee80211_tdls_td_tx_handle(struct ieee80211_local *local,
if (is_teardown) {
/* This mechanism relies on being able to get ACKs */
- WARN_ON(!(local->hw.flags &
- IEEE80211_HW_REPORTS_TX_ACK_STATUS));
+ WARN_ON(!ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS));
/* Check if peer has ACKed */
if (flags & IEEE80211_TX_STAT_ACK) {
@@ -429,6 +428,74 @@ static void ieee80211_tdls_td_tx_handle(struct ieee80211_local *local,
}
}
+static struct ieee80211_sub_if_data *
+ieee80211_sdata_from_skb(struct ieee80211_local *local, struct sk_buff *skb)
+{
+ struct ieee80211_sub_if_data *sdata;
+
+ if (skb->dev) {
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+ if (!sdata->dev)
+ continue;
+
+ if (skb->dev == sdata->dev)
+ return sdata;
+ }
+
+ return NULL;
+ }
+
+ return rcu_dereference(local->p2p_sdata);
+}
+
+static void ieee80211_report_ack_skb(struct ieee80211_local *local,
+ struct ieee80211_tx_info *info,
+ bool acked, bool dropped)
+{
+ struct sk_buff *skb;
+ unsigned long flags;
+
+ spin_lock_irqsave(&local->ack_status_lock, flags);
+ skb = idr_find(&local->ack_status_frames, info->ack_frame_id);
+ if (skb)
+ idr_remove(&local->ack_status_frames, info->ack_frame_id);
+ spin_unlock_irqrestore(&local->ack_status_lock, flags);
+
+ if (!skb)
+ return;
+
+ if (dropped) {
+ dev_kfree_skb_any(skb);
+ return;
+ }
+
+ if (info->flags & IEEE80211_TX_INTFL_NL80211_FRAME_TX) {
+ u64 cookie = IEEE80211_SKB_CB(skb)->ack.cookie;
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_hdr *hdr = (void *)skb->data;
+
+ rcu_read_lock();
+ sdata = ieee80211_sdata_from_skb(local, skb);
+ if (sdata) {
+ if (ieee80211_is_nullfunc(hdr->frame_control) ||
+ ieee80211_is_qos_nullfunc(hdr->frame_control))
+ cfg80211_probe_status(sdata->dev, hdr->addr1,
+ cookie, acked,
+ GFP_ATOMIC);
+ else
+ cfg80211_mgmt_tx_status(&sdata->wdev, cookie,
+ skb->data, skb->len,
+ acked, GFP_ATOMIC);
+ }
+ rcu_read_unlock();
+
+ dev_kfree_skb_any(skb);
+ } else {
+ /* consumes skb */
+ skb_complete_wifi_ack(skb, acked);
+ }
+}
+
static void ieee80211_report_used_skb(struct ieee80211_local *local,
struct sk_buff *skb, bool dropped)
{
@@ -439,28 +506,12 @@ static void ieee80211_report_used_skb(struct ieee80211_local *local,
if (dropped)
acked = false;
- if (info->flags & (IEEE80211_TX_INTFL_NL80211_FRAME_TX |
- IEEE80211_TX_INTFL_MLME_CONN_TX)) {
- struct ieee80211_sub_if_data *sdata = NULL;
- struct ieee80211_sub_if_data *iter_sdata;
- u64 cookie = (unsigned long)skb;
+ if (info->flags & IEEE80211_TX_INTFL_MLME_CONN_TX) {
+ struct ieee80211_sub_if_data *sdata;
rcu_read_lock();
- if (skb->dev) {
- list_for_each_entry_rcu(iter_sdata, &local->interfaces,
- list) {
- if (!iter_sdata->dev)
- continue;
-
- if (skb->dev == iter_sdata->dev) {
- sdata = iter_sdata;
- break;
- }
- }
- } else {
- sdata = rcu_dereference(local->p2p_sdata);
- }
+ sdata = ieee80211_sdata_from_skb(local, skb);
if (!sdata) {
skb->dev = NULL;
@@ -478,38 +529,14 @@ static void ieee80211_report_used_skb(struct ieee80211_local *local,
ieee80211_mgd_conn_tx_status(sdata,
hdr->frame_control,
acked);
- } else if (ieee80211_is_nullfunc(hdr->frame_control) ||
- ieee80211_is_qos_nullfunc(hdr->frame_control)) {
- cfg80211_probe_status(sdata->dev, hdr->addr1,
- cookie, acked, GFP_ATOMIC);
} else {
- cfg80211_mgmt_tx_status(&sdata->wdev, cookie, skb->data,
- skb->len, acked, GFP_ATOMIC);
+ /* we assign ack frame ID for the others */
+ WARN_ON(1);
}
rcu_read_unlock();
- }
-
- if (unlikely(info->ack_frame_id)) {
- struct sk_buff *ack_skb;
- unsigned long flags;
-
- spin_lock_irqsave(&local->ack_status_lock, flags);
- ack_skb = idr_find(&local->ack_status_frames,
- info->ack_frame_id);
- if (ack_skb)
- idr_remove(&local->ack_status_frames,
- info->ack_frame_id);
- spin_unlock_irqrestore(&local->ack_status_lock, flags);
-
- if (ack_skb) {
- if (!dropped) {
- /* consumes ack_skb */
- skb_complete_wifi_ack(ack_skb, acked);
- } else {
- dev_kfree_skb_any(ack_skb);
- }
- }
+ } else if (info->ack_frame_id) {
+ ieee80211_report_ack_skb(local, info, acked, dropped);
}
}
@@ -631,15 +658,15 @@ void ieee80211_tx_status_noskb(struct ieee80211_hw *hw,
}
if (acked || noack_success) {
- local->dot11TransmittedFrameCount++;
- if (!pubsta)
- local->dot11MulticastTransmittedFrameCount++;
- if (retry_count > 0)
- local->dot11RetryCount++;
- if (retry_count > 1)
- local->dot11MultipleRetryCount++;
+ I802_DEBUG_INC(local->dot11TransmittedFrameCount);
+ if (!pubsta)
+ I802_DEBUG_INC(local->dot11MulticastTransmittedFrameCount);
+ if (retry_count > 0)
+ I802_DEBUG_INC(local->dot11RetryCount);
+ if (retry_count > 1)
+ I802_DEBUG_INC(local->dot11MultipleRetryCount);
} else {
- local->dot11FailedCount++;
+ I802_DEBUG_INC(local->dot11FailedCount);
}
}
EXPORT_SYMBOL(ieee80211_tx_status_noskb);
@@ -703,7 +730,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
ieee80211_get_qos_ctl(hdr),
sta, true, acked);
- if ((local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) &&
+ if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL) &&
(ieee80211_is_data(hdr->frame_control)) &&
(rates_idx != -1))
sta->last_tx_rate = info->status.rates[rates_idx];
@@ -770,11 +797,11 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
ieee80211_frame_acked(sta, skb);
if ((sta->sdata->vif.type == NL80211_IFTYPE_STATION) &&
- (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS))
+ ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS))
ieee80211_sta_tx_notify(sta->sdata, (void *) skb->data,
acked, info->status.tx_time);
- if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) {
+ if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) {
if (info->flags & IEEE80211_TX_STAT_ACK) {
if (sta->lost_packets)
sta->lost_packets = 0;
@@ -802,13 +829,13 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
if ((info->flags & IEEE80211_TX_STAT_ACK) ||
(info->flags & IEEE80211_TX_STAT_NOACK_TRANSMITTED)) {
if (ieee80211_is_first_frag(hdr->seq_ctrl)) {
- local->dot11TransmittedFrameCount++;
+ I802_DEBUG_INC(local->dot11TransmittedFrameCount);
if (is_multicast_ether_addr(ieee80211_get_DA(hdr)))
- local->dot11MulticastTransmittedFrameCount++;
+ I802_DEBUG_INC(local->dot11MulticastTransmittedFrameCount);
if (retry_count > 0)
- local->dot11RetryCount++;
+ I802_DEBUG_INC(local->dot11RetryCount);
if (retry_count > 1)
- local->dot11MultipleRetryCount++;
+ I802_DEBUG_INC(local->dot11MultipleRetryCount);
}
/* This counter shall be incremented for an acknowledged MPDU
@@ -818,14 +845,14 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
if (!is_multicast_ether_addr(hdr->addr1) ||
ieee80211_is_data(fc) ||
ieee80211_is_mgmt(fc))
- local->dot11TransmittedFragmentCount++;
+ I802_DEBUG_INC(local->dot11TransmittedFragmentCount);
} else {
if (ieee80211_is_first_frag(hdr->seq_ctrl))
- local->dot11FailedCount++;
+ I802_DEBUG_INC(local->dot11FailedCount);
}
if (ieee80211_is_nullfunc(fc) && ieee80211_has_pm(fc) &&
- (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) &&
+ ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS) &&
!(info->flags & IEEE80211_TX_CTL_INJECTED) &&
local->ps_sdata && !(local->scanning)) {
if (info->flags & IEEE80211_TX_STAT_ACK) {
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.