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From:   Luca Coelho <luca@coelho.fi>
To:     johannes@sipsolutions.net
Cc:     linux-wireless@vger.kernel.org
Date:   Thu, 26 Mar 2020 15:09:33 +0200
Message-Id: <iwlwifi.20200326150855.1dcb2d16fa74.I74d7c007dad2601d2e39f54612fe6554dd5ab386@changeid>
In-Reply-To: <20200326130943.623208-1-luca@coelho.fi>
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Subject: [PATCH v2 02/12] mac80211: add twt_protected flag to the bss_conf structure
Sender: linux-wireless-owner@vger.kernel.org
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From: Shaul Triebitz <shaul.triebitz@intel.com>

Add a flag to the BSS conf whether the BSS and STA support protected TWT.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 include/net/mac80211.h | 2 ++
 net/mac80211/mlme.c    | 9 +++++++++
 2 files changed, 11 insertions(+)

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index b6b4de0e4b5e..f2b0a7795d0a 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -508,6 +508,7 @@ struct ieee80211_ftm_responder_params {
  *	mode only, set if the AP advertises TWT responder role)
  * @twt_responder: does this BSS support TWT requester (relevant for managed
  *	mode only, set if the AP advertises TWT responder role)
+ * @twt_protected: does this BSS support protected TWT frames
  * @assoc: association status
  * @ibss_joined: indicates whether this station is part of an IBSS
  *	or not
@@ -618,6 +619,7 @@ struct ieee80211_bss_conf {
 	bool he_support;
 	bool twt_requester;
 	bool twt_responder;
+	bool twt_protected;
 	/* association related data */
 	bool assoc, ibss_joined;
 	bool ibss_creator;
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 16d75da0996a..f1f518790c12 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3384,10 +3384,19 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
 						  sta);
 
 		bss_conf->he_support = sta->sta.he_cap.has_he;
+		if (elems->rsnx && elems->rsnx_len &&
+		    (elems->rsnx[0] & WLAN_RSNX_CAPA_PROTECTED_TWT) &&
+		    wiphy_ext_feature_isset(local->hw.wiphy,
+					    NL80211_EXT_FEATURE_PROTECTED_TWT))
+			bss_conf->twt_protected = true;
+		else
+			bss_conf->twt_protected = false;
+
 		changed |= ieee80211_recalc_twt_req(sdata, sta, elems);
 	} else {
 		bss_conf->he_support = false;
 		bss_conf->twt_requester = false;
+		bss_conf->twt_protected = false;
 	}
 
 	if (bss_conf->he_support) {
-- 
2.25.1