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mac80211: flush keys when stopping AP

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Since hostapd will remove keys this isn't usually
an issue, but we shouldn't leak keys to the next
BSS started on the same interface. For VLANs this
also fixes a bug, keys that aren't removed would
otherwise be leaked.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2013-02-23 01:14:20 +01:00
parent 8d1f7ecd2a
commit 7b4396bd68
2 changed files with 5 additions and 2 deletions
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5
net/mac80211/cfg.c
View File

@ -1035,9 +1035,12 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
sta_info_flush_defer(vlan);
sta_info_flush_defer(sdata);
rcu_barrier();
list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
sta_info_flush_cleanup(vlan);
ieee80211_free_keys(vlan);
}
sta_info_flush_cleanup(sdata);
ieee80211_free_keys(sdata);
sdata->vif.bss_conf.enable_beacon = false;
clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);

2
net/mac80211/iface.c
View File

@ -840,7 +840,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
/*
* Free all remaining keys, there shouldn't be any,
* except maybe group keys in AP more or WDS?
* except maybe in WDS mode?
*/
ieee80211_free_keys(sdata);