diff options
| author | Sujith <Sujith.Manoharan@atheros.com> | 2010-02-10 14:52:21 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-02-10 16:36:52 -0500 |
| commit | 4cad6c7c38930618d77e65af82c1403d63879eee (patch) | |
| tree | 9e8c14e0819c42c8ac290f6a0bba5ca45a3ecef2 | |
| parent | f32338319f10c4ca5499c19edc5b3618896920ba (diff) | |
mac80211: Deny TX BA session requests during disassociationmaster-2010-02-10
In associated state, when bringing an interface down, existing
BA sessions are torn down. When this is in progress, nothing
prevents mac80211 from accepting another BA session start request.
Use a new station flag to fix this.
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | net/mac80211/agg-tx.c | 8 | ||||
| -rw-r--r-- | net/mac80211/mlme.c | 4 | ||||
| -rw-r--r-- | net/mac80211/sta_info.h | 4 |
3 files changed, 15 insertions, 1 deletions
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c index 718fbcff84d2..5538e1b4a697 100644 --- a/net/mac80211/agg-tx.c +++ b/net/mac80211/agg-tx.c @@ -237,6 +237,14 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid) sdata->vif.type != NL80211_IFTYPE_AP) return -EINVAL; + if (test_sta_flags(sta, WLAN_STA_DISASSOC)) { +#ifdef CONFIG_MAC80211_HT_DEBUG + printk(KERN_DEBUG "Disassociation is in progress. " + "Denying BA session request\n"); +#endif + return -EINVAL; + } + if (test_sta_flags(sta, WLAN_STA_SUSPEND)) { #ifdef CONFIG_MAC80211_HT_DEBUG printk(KERN_DEBUG "Suspend in progress. " diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index ee9443dc20ff..bfc4a5070013 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -797,8 +797,10 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata) rcu_read_lock(); sta = sta_info_get(sdata, bssid); - if (sta) + if (sta) { + set_sta_flags(sta, WLAN_STA_DISASSOC); ieee80211_sta_tear_down_BA_sessions(sta); + } rcu_read_unlock(); changed |= ieee80211_reset_erp_info(sdata); diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 5ff611a35979..822d84522937 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -42,6 +42,9 @@ * be in the queues * @WLAN_STA_PSPOLL: Station sent PS-poll while driver was keeping * station in power-save mode, reply when the driver unblocks. + * @WLAN_STA_DISASSOC: Disassociation in progress. + * This is used to reject TX BA session requests when disassociation + * is in progress. */ enum ieee80211_sta_info_flags { WLAN_STA_AUTH = 1<<0, @@ -57,6 +60,7 @@ enum ieee80211_sta_info_flags { WLAN_STA_SUSPEND = 1<<11, WLAN_STA_PS_DRIVER = 1<<12, WLAN_STA_PSPOLL = 1<<13, + WLAN_STA_DISASSOC = 1<<14, }; #define STA_TID_NUM 16 |