mac80211: protect TDLS discovery session

After sending a TDLS discovery-request, we expect a reply to arrive on
the AP's channel. We must stay on the channel (no PSM, scan, etc.), since
a TDLS setup-response is a direct packet not buffered by the AP.
Add a new mac80211 driver callback to allow discovery session protection.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index cfe1a0688b5c..02ac535d1274 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -1330,6 +1330,13 @@ DEFINE_EVENT(local_sdata_evt, drv_mgd_prepare_tx,
         TP_ARGS(local, sdata)
 );
 
+DEFINE_EVENT(local_sdata_evt, drv_mgd_protect_tdls_discover,
+        TP_PROTO(struct ieee80211_local *local,
+                 struct ieee80211_sub_if_data *sdata),
+
+        TP_ARGS(local, sdata)
+);
+
 DECLARE_EVENT_CLASS(local_chanctx,
         TP_PROTO(struct ieee80211_local *local,
                  struct ieee80211_chanctx *ctx),