Commit 7adc3e46 authored by Arik Nemtsov's avatar Arik Nemtsov Committed by Johannes Berg

mac80211: make sure TDLS peer STA exists during setup

Make sure userspace added a TDLS peer station before invoking the
transmission of the first setup frame. This ensures packets to the peer
won't go through the AP path.
Signed-off-by: default avatarArik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent c887f0d3
...@@ -332,6 +332,19 @@ ieee80211_tdls_mgmt_setup(struct wiphy *wiphy, struct net_device *dev, ...@@ -332,6 +332,19 @@ ieee80211_tdls_mgmt_setup(struct wiphy *wiphy, struct net_device *dev,
goto exit; goto exit;
} }
/*
* make sure we have a STA representing the peer so we drop or buffer
* non-TDLS-setup frames to the peer. We can't send other packets
* during setup through the AP path
*/
rcu_read_lock();
if (!sta_info_get(sdata, peer)) {
rcu_read_unlock();
ret = -ENOLINK;
goto exit;
}
rcu_read_unlock();
ieee80211_flush_queues(local, sdata); ieee80211_flush_queues(local, sdata);
ret = ieee80211_tdls_prep_mgmt_packet(wiphy, dev, peer, action_code, ret = ieee80211_tdls_prep_mgmt_packet(wiphy, dev, peer, action_code,
......
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