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mac80211: support client probe

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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>
This commit is contained in:
Johannes Berg
2011-11-04 11:18:16 +01:00
committed by John W. Linville
parent 7f6cf311a5
commit 06500736c5
2 changed files with 95 additions and 18 deletions
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45
net/mac80211/status.c
View File

@ -516,27 +516,36 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
}
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 */