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From:   Veerendranath Jakkam <vjakkam@codeaurora.org>
To:     johannes@sipsolutions.net
Cc:     linux-wireless@vger.kernel.org
Subject: [PATCH] cfg80211: Add feature flag to indicate RSNXE IE support in FT
Date:   Tue,  4 Aug 2020 09:02:50 +0530
Message-Id: <1596511970-8415-1-git-send-email-vjakkam@codeaurora.org>
Sender: linux-wireless-owner@vger.kernel.org
Precedence: bulk

Add a new feature flag that drivers in which FT handshake is offloaded,
to advertise support for interoperability with legacy clients which
doesn't support using RSNXE IE for MIC calculation in FT handshake. The
userspace can choose to enable/disable FT protocols that require RSNXE IE
to be used based on this flag advertised by drivers.

Signed-off-by: Veerendranath Jakkam <vjakkam@codeaurora.org>

diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 631f3a99..83e8079 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -5820,6 +5820,9 @@ enum nl80211_feature_flags {
  * @NL80211_EXT_FEATURE_4WAY_HANDSHAKE_AP_PSK: Device wants to do 4-way
  *	handshake with PSK in AP mode (PSK is passed as part of the start AP
  *	command).
+ * @NL80211_EXT_FEATURE_FT_RSNXE: Driver supports RSNXE element in FT handshake
+ *	and interoperable with legacy clients that doesn't support using RSNXE
+ *	IE for MIC computation in FT handshake.
  *
  * @NUM_NL80211_EXT_FEATURES: number of extended features.
  * @MAX_NL80211_EXT_FEATURES: highest extended feature index.
@@ -5878,6 +5881,7 @@ enum nl80211_ext_feature_index {
 	NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211_TX_STATUS,
 	NL80211_EXT_FEATURE_OPERATING_CHANNEL_VALIDATION,
 	NL80211_EXT_FEATURE_4WAY_HANDSHAKE_AP_PSK,
+	NL80211_EXT_FEATURE_FT_RSNXE,
 
 	/* add new features before the definition below */
 	NUM_NL80211_EXT_FEATURES,
-- 
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