[PATCH] nl80211: Add support to get BIP failure counters

["Vinita S. Maloo" <vmaloo@codeaurora.org>]

Add support to get number of MIC errors, missing MME incidents and
packet replay incidents observed while using IGTK/BIGTK keys when
PMF and/or beacon protection features are enabled.

Signed-off-by: Vinita S. Maloo <vmaloo@codeaurora.org>

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index e2dbc9c0..ade5ade 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1556,6 +1556,16 @@ struct cfg80211_tid_stats {
  *	an FCS error. This counter should be incremented only when TA of the
  *	received packet with an FCS error matches the peer MAC address.
  * @airtime_link_metric: mesh airtime link metric.
+ * @bip_mic_error_count: number of group addressed robust mgmt. frames received
+ *	from this station with invalid MIC or missing MME when PMF is enabled.
+ * @bip_replay_count: number of group addressed robust mgmt. frames received
+ *	from this station with packet number less than or equal to the last
+ *	received packet number (Replay packets) when PMF is enabled.
+ * @beacon_mic_error_count: number of beacons received from this station with
+ *	invalid MIC or missing MME when beacon protection is enabled.
+ * @beacon_replay_count: number of beacons received from this station with
+ *	packet number less than or equal to the last received packet number
+ *	(Replay packets) when beacon protection is enabled.
  */
 struct station_info {
 	u64 filled;
@@ -1613,6 +1623,11 @@ struct station_info {
 	u32 fcs_err_count;
 
 	u32 airtime_link_metric;
+
+	u32 bip_mic_error_count;
+	u32 bip_replay_count;
+	u32 beacon_mic_error_count;
+	u32 beacon_replay_count;
 };
 
 #if IS_ENABLED(CONFIG_CFG80211)
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index c14666b..a06b2c4 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -3365,6 +3365,18 @@ enum nl80211_sta_bss_param {
  * @NL80211_STA_INFO_AIRTIME_LINK_METRIC: airtime link metric for mesh station
  * @NL80211_STA_INFO_ASSOC_AT_BOOTTIME: Timestamp (CLOCK_BOOTTIME, nanoseconds)
  *	of STA's association
+ * @NL80211_STA_INFO_BIP_MIC_ERROR_COUNT: number of group addressed robust mgmt.
+ *	frames received from this station with invalid MIC or missing MME when
+ *	PMF is enabled (u32).
+ * @NL80211_STA_INFO_BIP_REPLAY_COUNT: number of group addressed robust mgmt.
+ *	frames received from this station with packet number less than or equal
+ *	to the last received packet number when PMF is enabled (u32)
+ * @NL80211_STA_INFO_BEACON_MIC_ERROR_COUNT: number of beacons received from
+ *	this station with invalid MIC or missing MME when beacon protection is
+ *	enabled (u32)
+ * @NL80211_STA_INFO_BEACON_REPLAY_COUNT: number of beacons received from this
+ *	station with packet number less than or equal to the last received
+ *	packet number when beacon protection is enabled (u32)
  * @__NL80211_STA_INFO_AFTER_LAST: internal
  * @NL80211_STA_INFO_MAX: highest possible station info attribute
  */
@@ -3412,6 +3424,10 @@ enum nl80211_sta_info {
 	NL80211_STA_INFO_AIRTIME_WEIGHT,
 	NL80211_STA_INFO_AIRTIME_LINK_METRIC,
 	NL80211_STA_INFO_ASSOC_AT_BOOTTIME,
+	NL80211_STA_INFO_BIP_MIC_ERROR_COUNT,
+	NL80211_STA_INFO_BIP_REPLAY_COUNT,
+	NL80211_STA_INFO_BEACON_MIC_ERROR_COUNT,
+	NL80211_STA_INFO_BEACON_REPLAY_COUNT,
 
 	/* keep last */
 	__NL80211_STA_INFO_AFTER_LAST,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 22c4d13..bc6767c 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -5409,6 +5409,10 @@ static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
 	PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
 	PUT_SINFO(RX_MPDUS, rx_mpdu_count, u32);
 	PUT_SINFO(FCS_ERROR_COUNT, fcs_err_count, u32);
+	PUT_SINFO(BIP_MIC_ERROR_COUNT, bip_mic_error_count, u32);
+	PUT_SINFO(BIP_REPLAY_COUNT, bip_replay_count, u32);
+	PUT_SINFO(BEACON_MIC_ERROR_COUNT, beacon_mic_error_count, u32);
+	PUT_SINFO(BEACON_REPLAY_COUNT, beacon_replay_count, u32);
 	if (wiphy_ext_feature_isset(&rdev->wiphy,
 				    NL80211_EXT_FEATURE_ACK_SIGNAL_SUPPORT)) {
 		PUT_SINFO(ACK_SIGNAL, ack_signal, u8);
-- 
2.7.4