[PATCH AUTOSEL 5.15 11/21] wifi: iwlwifi: mvm: Handle BIGTK cipher in kek_kck cmd

[Sasha Levin <sashal@kernel.org>]

From: Yedidya Benshimol <yedidya.ben.shimol@intel.com>

[ Upstream commit 08b16d1b5997dc378533318e2a9cd73c7a898284 ]

The BIGTK cipher field was added to the kek_kck_material_cmd
but wasn't assigned. Fix that by differentiating between the
IGTK/BIGTK keys and assign the ciphers fields accordingly.

Signed-off-by: Yedidya Benshimol <yedidya.ben.shimol@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240513132416.7fd0b22b7267.Ie9b581652b74bd7806980364d59e1b2e78e682c0@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/d3.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
index f9b004d139501..24c1666b2c88a 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
@@ -595,16 +595,25 @@ static void iwl_mvm_wowlan_gtk_type_iter(struct ieee80211_hw *hw,
 					 void *_data)
 {
 	struct wowlan_key_gtk_type_iter *data = _data;
+	__le32 *cipher = NULL;
+
+	if (key->keyidx == 4 || key->keyidx == 5)
+		cipher = &data->kek_kck_cmd->igtk_cipher;
+	if (key->keyidx == 6 || key->keyidx == 7)
+		cipher = &data->kek_kck_cmd->bigtk_cipher;
 
 	switch (key->cipher) {
 	default:
 		return;
 	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
 	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
-		data->kek_kck_cmd->igtk_cipher = cpu_to_le32(STA_KEY_FLG_GCMP);
+		if (cipher)
+			*cipher = cpu_to_le32(STA_KEY_FLG_GCMP);
 		return;
 	case WLAN_CIPHER_SUITE_AES_CMAC:
-		data->kek_kck_cmd->igtk_cipher = cpu_to_le32(STA_KEY_FLG_CCM);
+	case WLAN_CIPHER_SUITE_BIP_CMAC_256:
+		if (cipher)
+			*cipher = cpu_to_le32(STA_KEY_FLG_CCM);
 		return;
 	case WLAN_CIPHER_SUITE_CCMP:
 		if (!sta)
-- 
2.43.0