Revert "mac80211: remove exposing 'mfp' to drivers"

This reverts commit 5c48f1201744233d4f235c7dd916d5196ed20716.

Some device drivers (ath10k) offload part of aggregation including AddBA/DelBA
negotiations to firmware. In such scenario, the PMF configuration of
the station needs to be provided to driver to enable encryption of
AddBA/DelBA action frames.

Signed-off-by: Tamizh chelvam <c_traja@qti.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 4ec6fed..1bb2a2b 100644 (file)
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1683,6 +1683,7 @@ struct ieee80211_sta_rates {
  * @tdls: indicates whether the STA is a TDLS peer
  * @tdls_initiator: indicates the STA is an initiator of the TDLS link. Only
  *     valid if the STA is a TDLS peer in the first place.
+ * @mfp: indicates whether the STA uses management frame protection or not.
  * @txq: per-TID data TX queues (if driver uses the TXQ abstraction)
  */
 struct ieee80211_sta {
@@ -1700,6 +1701,7 @@ struct ieee80211_sta {
        struct ieee80211_sta_rates __rcu *rates;
        bool tdls;
        bool tdls_initiator;
+       bool mfp;
 
        struct ieee80211_txq *txq[IEEE80211_NUM_TIDS];
 

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 68e551e..63d03da 100644 (file)
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1138,6 +1138,7 @@ static int sta_apply_parameters(struct ieee80211_local *local,
        }
 
        if (mask & BIT(NL80211_STA_FLAG_MFP)) {
+               sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
                if (set & BIT(NL80211_STA_FLAG_MFP))
                        set_sta_flag(sta, WLAN_STA_MFP);
                else

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 56ef9a8..9c450ff 100644 (file)
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3044,8 +3044,12 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
 
        rate_control_rate_init(sta);
 
-       if (ifmgd->flags & IEEE80211_STA_MFP_ENABLED)
+       if (ifmgd->flags & IEEE80211_STA_MFP_ENABLED) {
                set_sta_flag(sta, WLAN_STA_MFP);
+               sta->sta.mfp = true;
+       } else {
+               sta->sta.mfp = false;
+       }
 
        sta->sta.wme = elems.wmm_param && local->hw.queues >= IEEE80211_NUM_ACS;