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mac80211: Update CSA counters in mgmt frames

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Track current csa counter value and use it
to update mgmt frames at the provided offsets.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Andrei Otcheretianski 2014-05-09 14:11:45 +03:00 committed by Johannes Berg
parent 34d22ce22b
commit 387910cc79
3 changed files with 20 additions and 3 deletions
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17
net/mac80211/cfg.c
View File

@ -3338,6 +3338,7 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
sdata->csa_radar_required = params->radar_required;
sdata->csa_chandef = params->chandef;
sdata->csa_block_tx = params->block_tx;
sdata->csa_current_counter = params->count;
sdata->vif.csa_active = true;
if (sdata->csa_block_tx)
@ -3382,6 +3383,7 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
bool need_offchan = false;
u32 flags;
int ret;
u8 *data;
if (params->dont_wait_for_ack)
flags = IEEE80211_TX_CTL_NO_ACK;
@ -3475,7 +3477,20 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
}
skb_reserve(skb, local->hw.extra_tx_headroom);
memcpy(skb_put(skb, params->len), params->buf, params->len);
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_ADHOC) &&
params->n_csa_offsets) {
int i;
for (i = 0; i < params->n_csa_offsets; i++)
data[params->csa_offsets[i]] =
sdata->csa_current_counter;
}
IEEE80211_SKB_CB(skb)->flags = flags;

1
net/mac80211/ieee80211_i.h
View File

@ -766,6 +766,7 @@ struct ieee80211_sub_if_data {
struct ieee80211_chanctx *reserved_chanctx;
struct cfg80211_chan_def reserved_chandef;
bool reserved_radar_required;
u8 csa_current_counter;
/* used to reconfigure hardware SM PS */
struct work_struct recalc_smps;

5
net/mac80211/tx.c
View File

@ -2449,7 +2449,8 @@ static void ieee80211_update_csa(struct ieee80211_sub_if_data *sdata,
if (WARN_ON(beacon_data[counter_offset_beacon] == 1))
return;
beacon_data[counter_offset_beacon]--;
sdata->csa_current_counter--;
beacon_data[counter_offset_beacon] = sdata->csa_current_counter;
if (sdata->vif.type == NL80211_IFTYPE_AP && counter_offset_presp) {
rcu_read_lock();
@ -2460,7 +2461,7 @@ static void ieee80211_update_csa(struct ieee80211_sub_if_data *sdata,
rcu_read_unlock();
return;
}
resp->data[counter_offset_presp]--;
resp->data[counter_offset_presp] = sdata->csa_current_counter;
rcu_read_unlock();
}
}