mac80211: support client probe
Support probing clients with null data frames
in AP mode.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index e1f6954..94702f1 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -516,27 +516,36 @@
}
if (info->flags & IEEE80211_TX_INTFL_NL80211_FRAME_TX) {
- struct ieee80211_work *wk;
u64 cookie = (unsigned long)skb;
- rcu_read_lock();
- list_for_each_entry_rcu(wk, &local->work_list, list) {
- if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX)
- continue;
- if (wk->offchan_tx.frame != skb)
- continue;
- wk->offchan_tx.status = true;
- break;
- }
- rcu_read_unlock();
- if (local->hw_roc_skb_for_status == skb) {
- cookie = local->hw_roc_cookie ^ 2;
- local->hw_roc_skb_for_status = NULL;
- }
+ if (ieee80211_is_nullfunc(hdr->frame_control) ||
+ ieee80211_is_qos_nullfunc(hdr->frame_control)) {
+ bool acked = info->flags & IEEE80211_TX_STAT_ACK;
+ cfg80211_probe_status(skb->dev, hdr->addr1,
+ cookie, acked, GFP_ATOMIC);
+ } else {
+ struct ieee80211_work *wk;
- cfg80211_mgmt_tx_status(
- skb->dev, cookie, skb->data, skb->len,
- !!(info->flags & IEEE80211_TX_STAT_ACK), GFP_ATOMIC);
+ rcu_read_lock();
+ list_for_each_entry_rcu(wk, &local->work_list, list) {
+ if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX)
+ continue;
+ if (wk->offchan_tx.frame != skb)
+ continue;
+ wk->offchan_tx.status = true;
+ break;
+ }
+ rcu_read_unlock();
+ if (local->hw_roc_skb_for_status == skb) {
+ cookie = local->hw_roc_cookie ^ 2;
+ local->hw_roc_skb_for_status = NULL;
+ }
+
+ cfg80211_mgmt_tx_status(
+ skb->dev, cookie, skb->data, skb->len,
+ !!(info->flags & IEEE80211_TX_STAT_ACK),
+ GFP_ATOMIC);
+ }
}
/* this was a transmitted frame, but now we want to reuse it */