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From:   Aloka Dixit <quic_alokad@quicinc.com>
To:     <johannes@sipsolutions.net>, <linux-wireless@vger.kernel.org>
CC:     Vikram Kandukuri <quic_vikram@quicinc.com>,
        Aloka Dixit <quic_alokad@quicinc.com>,
        Veerendranath Jakkam <quic_vjakkam@quicinc.com>
Subject: [PATCH 1/3] nl80211: retrieve EHT capabilities in AP mode
Date:   Tue, 15 Feb 2022 21:31:43 -0800
Message-ID: <20220216053145.20898-2-quic_alokad@quicinc.com>
In-Reply-To: <20220216053145.20898-1-quic_alokad@quicinc.com>
References: <20220216053145.20898-1-quic_alokad@quicinc.com>
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From: Vikram Kandukuri <quic_vikram@quicinc.com>

Add support to retrieve the EHT capabilities element passed by
the userspace in the beacon template and store the pointer in
struct cfg80211_ap_settings to be used by MAC80211.

Signed-off-by: Vikram Kandukuri <quic_vikram@quicinc.com>
Co-developed-by: Aloka Dixit <quic_alokad@quicinc.com>
Signed-off-by: Aloka Dixit <quic_alokad@quicinc.com>
Co-developed-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com>
Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com>
---
 include/net/cfg80211.h | 2 ++
 net/wireless/nl80211.c | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 136c0c537334..aaf25645aef3 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1285,6 +1285,7 @@ struct cfg80211_unsol_bcast_probe_resp {
  * @ht_cap: HT capabilities (or %NULL if HT isn't enabled)
  * @vht_cap: VHT capabilities (or %NULL if VHT isn't enabled)
  * @he_cap: HE capabilities (or %NULL if HE isn't enabled)
+ * @eht_cap: EHT capabilities (or %NULL if EHT isn't enabled)
  * @ht_required: stations must support HT
  * @vht_required: stations must support VHT
  * @twt_responder: Enable Target Wait Time
@@ -1322,6 +1323,7 @@ struct cfg80211_ap_settings {
 	const struct ieee80211_vht_cap *vht_cap;
 	const struct ieee80211_he_cap_elem *he_cap;
 	const struct ieee80211_he_operation *he_oper;
+	const struct ieee80211_eht_cap_elem *eht_cap;
 	bool ht_required, vht_required, he_required, sae_h2e_required;
 	bool twt_responder;
 	u32 flags;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 1595e14fd678..03eb6870e60f 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -5434,6 +5434,9 @@ static void nl80211_calculate_ap_params(struct cfg80211_ap_settings *params)
 	cap = cfg80211_find_ext_elem(WLAN_EID_EXT_HE_OPERATION, ies, ies_len);
 	if (cap && cap->datalen >= sizeof(*params->he_oper) + 1)
 		params->he_oper = (void *)(cap->data + 1);
+	cap = cfg80211_find_ext_elem(WLAN_EID_EXT_EHT_CAPABILITY, ies, ies_len);
+	if (cap && cap->datalen >= sizeof(*params->eht_cap) + 1)
+		params->eht_cap = (void *)(cap->data + 1);
 }
 
 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
-- 
2.31.1