ath10k: set peer MFP flag in peer assoc command

Set peer's management frame protection flag in peer assoc command,
this setting will enable/disable encrytion of management frames in fw.

Setting of this flag is based on whether MFP is enabled/disabled at STA
and a firmware feature flag ATH10K_FW_FEATURE_MFP_SUPPORT. This is because
only firmwares 10.1.561 and above have support for MFP.

Signed-off-by: Tamizh chelvam <c_traja@qti.qualcomm.com>
Signed-off-by: Manikanta pubbisetty <c_mpubbi@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/ath10k/core.c

@@ -167,6 +167,7 @@ static const char *const ath10k_core_fw_feature_str[] = {
 	[ATH10K_FW_FEATURE_SUPPORTS_SKIP_CLOCK_INIT] = "skip-clock-init",
 	[ATH10K_FW_FEATURE_RAW_MODE_SUPPORT] = "raw-mode",
 	[ATH10K_FW_FEATURE_SUPPORTS_ADAPTIVE_CCA] = "adaptive-cca",
+	[ATH10K_FW_FEATURE_MFP_SUPPORT] = "mfp",
 };
 
 static unsigned int ath10k_core_get_fw_feature_str(char *buf,

drivers/net/wireless/ath/ath10k/core.h

@@ -513,6 +513,9 @@ enum ath10k_fw_features {
 	/* Firmware Supports Adaptive CCA*/
 	ATH10K_FW_FEATURE_SUPPORTS_ADAPTIVE_CCA = 11,
 
+	/* Firmware supports management frame protection */
+	ATH10K_FW_FEATURE_MFP_SUPPORT = 12,
+
 	/* keep last */
 	ATH10K_FW_FEATURE_COUNT,
 };

drivers/net/wireless/ath/ath10k/htt_tx.c

@@ -477,6 +477,13 @@ int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 
 	msdu_id = res;
 
+	if ((ieee80211_is_action(hdr->frame_control) ||
+	     ieee80211_is_deauth(hdr->frame_control) ||
+	     ieee80211_is_disassoc(hdr->frame_control)) &&
+	     ieee80211_has_protected(hdr->frame_control)) {
+		skb_put(msdu, IEEE80211_CCMP_MIC_LEN);
+	}
+
 	txdesc = ath10k_htc_alloc_skb(ar, len);
 	if (!txdesc) {
 		res = -ENOMEM;

drivers/net/wireless/ath/ath10k/mac.c

@@ -1968,6 +1968,7 @@ static void ath10k_peer_assoc_h_basic(struct ath10k *ar,
 
 static void ath10k_peer_assoc_h_crypto(struct ath10k *ar,
 				       struct ieee80211_vif *vif,
+				       struct ieee80211_sta *sta,
 				       struct wmi_peer_assoc_complete_arg *arg)
 {
 	struct ieee80211_bss_conf *info = &vif->bss_conf;
@@ -2009,6 +2010,11 @@ static void ath10k_peer_assoc_h_crypto(struct ath10k *ar,
 		ath10k_dbg(ar, ATH10K_DBG_WMI, "%s: wpa ie found\n", __func__);
 		arg->peer_flags |= ar->wmi.peer_flags->need_gtk_2_way;
 	}
+
+	if (sta->mfp &&
+	    test_bit(ATH10K_FW_FEATURE_MFP_SUPPORT, ar->fw_features)) {
+		arg->peer_flags |= ar->wmi.peer_flags->pmf;
+	}
 }
 
 static void ath10k_peer_assoc_h_rates(struct ath10k *ar,
@@ -2480,7 +2486,7 @@ static int ath10k_peer_assoc_prepare(struct ath10k *ar,
 	memset(arg, 0, sizeof(*arg));
 
 	ath10k_peer_assoc_h_basic(ar, vif, sta, arg);
-	ath10k_peer_assoc_h_crypto(ar, vif, arg);
+	ath10k_peer_assoc_h_crypto(ar, vif, sta, arg);
 	ath10k_peer_assoc_h_rates(ar, vif, sta, arg);
 	ath10k_peer_assoc_h_ht(ar, vif, sta, arg);
 	ath10k_peer_assoc_h_vht(ar, vif, sta, arg);