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From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
To: kvalo@codeaurora.org, wcn36xx@lists.infradead.org,
	linux-wireless@vger.kernel.org
Cc: bryan.odonoghue@linaro.org, shawn.guo@linaro.org,
	benl@squareup.com, loic.poulain@linaro.org,
	bjorn.andersson@linaro.org
Subject: [PATCH v6 07/12] wcn36xx: Add set_rekey_data callback
Date: Sat,  5 Jun 2021 02:11:35 +0100	[thread overview]
Message-ID: <20210605011140.2004643-8-bryan.odonoghue@linaro.org> (raw)
In-Reply-To: <20210605011140.2004643-1-bryan.odonoghue@linaro.org>

Add a callback for Group Temporal Key tracking as provided by the standard
WiFi ops structure.

We track the key to integrate GTK offloading into the WoWLAN suspend path
later on. Code comes from the Intel iwlwifi driver with minimal name
changes.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Tested-by: Benjamin Li <benl@squareup.com>
---
 drivers/net/wireless/ath/wcn36xx/main.c    | 19 +++++++++++++++++++
 drivers/net/wireless/ath/wcn36xx/wcn36xx.h |  6 ++++++
 2 files changed, 25 insertions(+)

diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
index 09e22f829682..ec32b8b0067d 100644
--- a/drivers/net/wireless/ath/wcn36xx/main.c
+++ b/drivers/net/wireless/ath/wcn36xx/main.c
@@ -1147,6 +1147,24 @@ static int wcn36xx_resume(struct ieee80211_hw *hw)
 	return 0;
 }
 
+static void wcn36xx_set_rekey_data(struct ieee80211_hw *hw,
+				   struct ieee80211_vif *vif,
+				   struct cfg80211_gtk_rekey_data *data)
+{
+	struct wcn36xx *wcn = hw->priv;
+	struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
+
+	mutex_lock(&wcn->conf_mutex);
+
+	memcpy(vif_priv->rekey_data.kek, data->kek, NL80211_KEK_LEN);
+	memcpy(vif_priv->rekey_data.kck, data->kck, NL80211_KCK_LEN);
+	vif_priv->rekey_data.replay_ctr =
+		cpu_to_le64(be64_to_cpup((__be64 *)data->replay_ctr));
+	vif_priv->rekey_data.valid = true;
+
+	mutex_unlock(&wcn->conf_mutex);
+}
+
 #endif
 
 static int wcn36xx_ampdu_action(struct ieee80211_hw *hw,
@@ -1249,6 +1267,7 @@ static const struct ieee80211_ops wcn36xx_ops = {
 #ifdef CONFIG_PM
 	.suspend		= wcn36xx_suspend,
 	.resume			= wcn36xx_resume,
+	.set_rekey_data		= wcn36xx_set_rekey_data,
 #endif
 	.config			= wcn36xx_config,
 	.prepare_multicast	= wcn36xx_prepare_multicast,
diff --git a/drivers/net/wireless/ath/wcn36xx/wcn36xx.h b/drivers/net/wireless/ath/wcn36xx/wcn36xx.h
index 5a5114660b18..6121d8a5641a 100644
--- a/drivers/net/wireless/ath/wcn36xx/wcn36xx.h
+++ b/drivers/net/wireless/ath/wcn36xx/wcn36xx.h
@@ -143,6 +143,12 @@ struct wcn36xx_vif {
 	unsigned long tentative_addrs[BITS_TO_LONGS(WCN36XX_HAL_IPV6_OFFLOAD_ADDR_MAX)];
 	int num_target_ipv6_addrs;
 #endif
+	/* WoWLAN GTK rekey data */
+	struct {
+		u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
+		__le64 replay_ctr;
+		bool valid;
+	} rekey_data;
 
 	struct list_head sta_list;
 };
-- 
2.30.1


  parent reply	other threads:[~2021-06-05  1:10 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-05  1:11 [PATCH v6 00/12] wcn36xx: Enable downstream consistent Wake on Lan Bryan O'Donoghue
2021-06-05  1:11 ` [PATCH v6 01/12] wcn36xx: Return result of set_power_params in suspend Bryan O'Donoghue
2021-06-14 15:18   ` Kalle Valo
2021-06-14 15:25     ` Kalle Valo
2021-06-14 15:36       ` Bryan O'Donoghue
2021-06-15  6:41         ` Kalle Valo
2021-06-05  1:11 ` [PATCH v6 02/12] wcn36xx: Run suspend for the first ieee80211_vif Bryan O'Donoghue
2021-06-05  1:11 ` [PATCH v6 03/12] wcn36xx: Add ipv4 ARP offload support in suspend Bryan O'Donoghue
2021-06-05  1:11 ` [PATCH v6 04/12] wcn36xx: Do not flush indication queue on suspend/resume Bryan O'Donoghue
2021-06-05  1:11 ` [PATCH v6 05/12] wcn36xx: Add ipv6 address tracking Bryan O'Donoghue
2021-06-05  1:11 ` [PATCH v6 06/12] wcn36xx: Add ipv6 namespace offload in suspend Bryan O'Donoghue
2021-06-05  1:11 ` Bryan O'Donoghue [this message]
2021-06-05  1:11 ` [PATCH v6 08/12] wcn36xx: Add GTK offload to WoWLAN path Bryan O'Donoghue
2021-06-05  1:11 ` [PATCH v6 09/12] wcn36xx: Add GTK offload info to WoWLAN resume Bryan O'Donoghue
2021-06-05  1:11 ` [PATCH v6 10/12] wcn36xx: Add Host suspend indication support Bryan O'Donoghue
2021-06-05  1:11 ` [PATCH v6 11/12] wcn36xx: Add host resume request support Bryan O'Donoghue
2021-06-05  1:11 ` [PATCH v6 12/12] wcn36xx: Enable WOWLAN flags Bryan O'Donoghue

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