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mac80211: ibss should not purge clients it is not responsible for

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The IBSS merge code calls ieee80211_sta_expire() with a relatively
short expire timeout that purges other clients prematurely. The
expire function has to check that only the clients belonging to
the vif in question are purged.

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Marek Lindner 2011-12-20 23:16:52 +08:00 committed by John W. Linville
parent eca107ff8a
commit ec2b774e7c
1 changed files with 3 additions and 0 deletions
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3
net/mac80211/sta_info.c
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@ -946,6 +946,9 @@ void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
mutex_lock(&local->sta_mtx); mutex_lock(&local->sta_mtx);
list_for_each_entry_safe(sta, tmp, &local->sta_list, list) list_for_each_entry_safe(sta, tmp, &local->sta_list, list)
if (sdata != sta->sdata)
continue;
if (time_after(jiffies, sta->last_rx + exp_time)) { if (time_after(jiffies, sta->last_rx + exp_time)) {
#ifdef CONFIG_MAC80211_IBSS_DEBUG #ifdef CONFIG_MAC80211_IBSS_DEBUG
printk(KERN_DEBUG "%s: expiring inactive STA %pM\n", printk(KERN_DEBUG "%s: expiring inactive STA %pM\n",