From 85249e5fab13edb89258fa6d551cd4a3a4f0d569 Mon Sep 17 00:00:00 2001 From: Ron Rindjunsky Date: Tue, 18 Mar 2008 15:00:32 -0700 Subject: [PATCH] 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 Signed-off-by: Tomas Winkler Signed-off-by: John W. Linville --- net/mac80211/ieee80211.c | 7 +------ net/mac80211/ieee80211_i.h | 2 ++ net/mac80211/ieee80211_sta.c | 15 ++++++++++++++- 3 files changed, 17 insertions(+), 7 deletions(-) diff --git a/net/mac80211/ieee80211.c b/net/mac80211/ieee80211.c index 55b63712e4..616ce10d2a 100644 --- a/net/mac80211/ieee80211.c +++ b/net/mac80211/ieee80211.c @@ -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(); diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 7f10ff5d4a..a6485f01b3 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -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); diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c index 9beedb6558..fc73ca4abc 100644 --- a/net/mac80211/ieee80211_sta.c +++ b/net/mac80211/ieee80211_sta.c @@ -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, -- 2.39.5