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

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

net/mac80211/tdls.c

+13 −0
Original line number Diff line number Diff line
@@ -332,6 +332,19 @@ ieee80211_tdls_mgmt_setup(struct wiphy *wiphy, struct net_device *dev, 
		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);



	ret = ieee80211_tdls_prep_mgmt_packet(wiphy, dev, peer, action_code,