[v3,07/12] wcn36xx: Add set_rekey_data callback

Message ID	20210319161520.3590510-8-bryan.odonoghue@linaro.org
State	Superseded
Headers	show Delivered-To: patch@linaro.org Received-SPF: pass (google.com: best guess record for domain of wcn36xx-bounces+patch=linaro.org@lists.infradead.org designates 2001:8b0:10b:1:d65d:64ff:fe57:4e05 as permitted sender) client-ip=2001:8b0:10b:1:d65d:64ff:fe57:4e05; 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 v3 07/12] wcn36xx: Add set_rekey_data callback Date: Fri, 19 Mar 2021 16:15:15 +0000 Message-Id: <20210319161520.3590510-8-bryan.odonoghue@linaro.org> In-Reply-To: <20210319161520.3590510-1-bryan.odonoghue@linaro.org> References: <20210319161520.3590510-1-bryan.odonoghue@linaro.org> MIME-Version: 1.0 preview: 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. Content analysis details: (-0.2 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:32b listed in] [list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain Precedence: list Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "wcn36xx" <wcn36xx-bounces@lists.infradead.org> Errors-To: wcn36xx-bounces+patch=linaro.org@lists.infradead.org
Series	wcn36xx: Enable downstream consistent Wake on Lan \| expand [v3,00/12] wcn36xx: Enable downstream consistent Wake on Lan [v3,01/12] wcn36xx: Return result of set_power_params in suspend [v3,02/12] wcn36xx: Run suspend for the first ieee80211_vif [v3,03/12] wcn36xx: Add ipv4 ARP offload support in suspend [v3,04/12] wcn36xx: Do not flush indication queue on suspend/resume [v3,05/12] wcn36xx: Add ipv6 address tracking [v3,06/12] wcn36xx: Add ipv6 namespace offload in suspend [v3,07/12] wcn36xx: Add set_rekey_data callback [v3,08/12] wcn36xx: Add GTK offload to WoWLAN path [v3,09/12] wcn36xx: Add GTK offload info to WoWLAN resume [v3,10/12] wcn36xx: Add Host suspend indication support [v3,11/12] wcn36xx: Add host resume request support [v3,12/12] wcn36xx: Enable WOWLAN flags

Message ID

20210319161520.3590510-8-bryan.odonoghue@linaro.org

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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 v3 07/12] wcn36xx: Add set_rekey_data callback
Date: Fri, 19 Mar 2021 16:15:15 +0000
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Series

wcn36xx: Enable downstream consistent Wake on Lan | expand

Commit Message

Bryan O'Donoghue March 19, 2021, 4:15 p.m. UTC

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>

---
 drivers/net/wireless/ath/wcn36xx/main.c    | 19 +++++++++++++++++++
 drivers/net/wireless/ath/wcn36xx/wcn36xx.h |  6 ++++++
 2 files changed, 25 insertions(+)

-- 
2.30.1


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diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
index 36cf771d8a20..6b0deed23c5a 100644
--- a/drivers/net/wireless/ath/wcn36xx/main.c
+++ b/drivers/net/wireless/ath/wcn36xx/main.c
@@ -1155,6 +1155,24 @@  static int wcn36xx_resume(struct ieee80211_hw *hw)
 	return 0;
 }
 
+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,
@@ -1257,6 +1275,7 @@  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;
 };

[v3,07/12] wcn36xx: Add set_rekey_data callback

Commit Message

Patch