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mac80211: tear down of block ack sessions 

This patch adds a clean tear down for all block ack sessions if interface
goes down or if a deauthentication is done.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ron Rindjunsky 2008-03-18 15:00:32 -07:00 committed by John W. Linville
parent 7b9d44cd6b
commit 85249e5fab
3 changed files with 17 additions and 7 deletions
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7
net/mac80211/ieee80211.c
View File

@ -386,7 +386,6 @@ static int ieee80211_stop(struct net_device *dev)
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_init_conf conf;
struct sta_info *sta;
int i;
/*
* Stop TX on this interface first.
@ -400,11 +399,7 @@ static int ieee80211_stop(struct net_device *dev)
list_for_each_entry_rcu(sta, &local->sta_list, list) {
if (sta->sdata == sdata)
for (i = 0; i < STA_TID_NUM; i++)
ieee80211_sta_stop_rx_ba_session(sdata->dev,
sta->addr, i,
WLAN_BACK_RECIPIENT,
WLAN_REASON_QSTA_LEAVE_QBSS);
ieee80211_sta_tear_down_BA_sessions(dev, sta->addr);
}
rcu_read_unlock();

2
net/mac80211/ieee80211_i.h
View File

@ -928,10 +928,12 @@ void ieee80211_send_addba_request(struct net_device *dev, const u8 *da,
u16 agg_size, u16 timeout);
void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid,
u16 initiator, u16 reason_code);
void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *da,
u16 tid, u16 initiator, u16 reason);
void sta_rx_agg_session_timer_expired(unsigned long data);
void sta_addba_resp_timer_expired(unsigned long data);
void ieee80211_sta_tear_down_BA_sessions(struct net_device *dev, u8 *addr);
u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
struct ieee802_11_elems *elems,
enum ieee80211_band band);

15
net/mac80211/ieee80211_sta.c
View File

@ -467,8 +467,8 @@ static void ieee80211_set_associated(struct net_device *dev,
memcpy(wrqu.ap_addr.sa_data, sdata->u.sta.bssid, ETH_ALEN);
ieee80211_sta_send_associnfo(dev, ifsta);
} else {
ieee80211_sta_tear_down_BA_sessions(dev, ifsta->bssid);
ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
netif_carrier_off(dev);
ieee80211_reset_erp_info(dev);
memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
@ -1518,6 +1518,19 @@ void sta_rx_agg_session_timer_expired(unsigned long data)
WLAN_REASON_QSTA_TIMEOUT);
}
void ieee80211_sta_tear_down_BA_sessions(struct net_device *dev, u8 *addr)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
int i;
for (i = 0; i < STA_TID_NUM; i++) {
ieee80211_stop_tx_ba_session(&local->hw, addr, i,
WLAN_BACK_INITIATOR);
ieee80211_sta_stop_rx_ba_session(dev, addr, i,
WLAN_BACK_RECIPIENT,
WLAN_REASON_QSTA_LEAVE_QBSS);
}
}
static void ieee80211_rx_mgmt_auth(struct net_device *dev,
struct ieee80211_if_sta *ifsta,