- rcu_read_lock();
-
- sband = local->hw.wiphy->bands[info->band];
-
- sta = sta_info_get(local, hdr->addr1);
-
- if (sta) {
- if (!(info->flags & IEEE80211_TX_STAT_ACK) &&
- test_sta_flags(sta, WLAN_STA_PS)) {
- /*
- * The STA is in power save mode, so assume
- * that this TX packet failed because of that.
- */
- ieee80211_handle_filtered_frame(local, sta, skb);
- rcu_read_unlock();
- return;
- }
-
- fc = hdr->frame_control;
-
- if ((info->flags & IEEE80211_TX_STAT_AMPDU_NO_BACK) &&
- (ieee80211_is_data_qos(fc))) {
- u16 tid, ssn;
- u8 *qc;
-
- qc = ieee80211_get_qos_ctl(hdr);
- tid = qc[0] & 0xf;
- ssn = ((le16_to_cpu(hdr->seq_ctrl) + 0x10)
- & IEEE80211_SCTL_SEQ);
- ieee80211_send_bar(sta->sdata, hdr->addr1,
- tid, ssn);
- }
-
- if (info->flags & IEEE80211_TX_STAT_TX_FILTERED) {
- ieee80211_handle_filtered_frame(local, sta, skb);
- rcu_read_unlock();
- return;
- } else {
- if (!(info->flags & IEEE80211_TX_STAT_ACK))
- sta->tx_retry_failed++;
- sta->tx_retry_count += retry_count;
- }
-
- rate_control_tx_status(local, sband, sta, skb);
- }
-
- rcu_read_unlock();
-
- ieee80211_led_tx(local, 0);
-
- /* SNMP counters
- * Fragments are passed to low-level drivers as separate skbs, so these
- * are actually fragments, not frames. Update frame counters only for
- * the first fragment of the frame. */
-
- frag = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG;
- type = le16_to_cpu(hdr->frame_control) & IEEE80211_FCTL_FTYPE;
-
- if (info->flags & IEEE80211_TX_STAT_ACK) {
- if (frag == 0) {
- local->dot11TransmittedFrameCount++;
- if (is_multicast_ether_addr(hdr->addr1))
- local->dot11MulticastTransmittedFrameCount++;
- if (retry_count > 0)
- local->dot11RetryCount++;
- if (retry_count > 1)
- local->dot11MultipleRetryCount++;
- }
-
- /* This counter shall be incremented for an acknowledged MPDU
- * with an individual address in the address 1 field or an MPDU
- * with a multicast address in the address 1 field of type Data
- * or Management. */
- if (!is_multicast_ether_addr(hdr->addr1) ||
- type == IEEE80211_FTYPE_DATA ||
- type == IEEE80211_FTYPE_MGMT)
- local->dot11TransmittedFragmentCount++;
- } else {
- if (frag == 0)
- local->dot11FailedCount++;
- }
-
- /* this was a transmitted frame, but now we want to reuse it */
- skb_orphan(skb);
-
- /*
- * This is a bit racy but we can avoid a lot of work
- * with this test...
- */
- if (!local->monitors && !local->cooked_mntrs) {
- dev_kfree_skb(skb);
- return;
- }
-
- /* send frame to monitor interfaces now */
-
- if (skb_headroom(skb) < sizeof(*rthdr)) {
- printk(KERN_ERR "ieee80211_tx_status: headroom too small\n");
- dev_kfree_skb(skb);
- return;
- }
-
- rthdr = (struct ieee80211_tx_status_rtap_hdr *)
- skb_push(skb, sizeof(*rthdr));
-
- memset(rthdr, 0, sizeof(*rthdr));
- rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr));
- rthdr->hdr.it_present =
- cpu_to_le32((1 << IEEE80211_RADIOTAP_TX_FLAGS) |
- (1 << IEEE80211_RADIOTAP_DATA_RETRIES) |
- (1 << IEEE80211_RADIOTAP_RATE));
-
- if (!(info->flags & IEEE80211_TX_STAT_ACK) &&
- !is_multicast_ether_addr(hdr->addr1))
- rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_FAIL);
-
- /*
- * XXX: Once radiotap gets the bitmap reset thing the vendor
- * extensions proposal contains, we can actually report
- * the whole set of tries we did.
- */
- if ((info->status.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) ||
- (info->status.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT))
- rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_CTS);
- else if (info->status.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS)
- rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_RTS);
- if (info->status.rates[0].idx >= 0 &&
- !(info->status.rates[0].flags & IEEE80211_TX_RC_MCS))
- rthdr->rate = sband->bitrates[
- info->status.rates[0].idx].bitrate / 5;
-
- /* for now report the total retry_count */
- rthdr->data_retries = retry_count;
-
- /* XXX: is this sufficient for BPF? */
- skb_set_mac_header(skb, 0);
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- skb->pkt_type = PACKET_OTHERHOST;
- skb->protocol = htons(ETH_P_802_2);
- memset(skb->cb, 0, sizeof(skb->cb));
-
- rcu_read_lock();
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
- if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
- if (!netif_running(sdata->dev))
- continue;
-
- if (prev_dev) {
- skb2 = skb_clone(skb, GFP_ATOMIC);
- if (skb2) {
- skb2->dev = prev_dev;
- netif_rx(skb2);
- }
- }
-
- prev_dev = sdata->dev;
- }
- }
- if (prev_dev) {
- skb->dev = prev_dev;
- netif_rx(skb);
- skb = NULL;
- }
- rcu_read_unlock();
- dev_kfree_skb(skb);