qcacld-3.0: Send STA authorized status to supplicant for AP

Currently there is no support from driver to send STA authorized
event to supplicant.

Use QCA_NL80211_VENDOR_SUBCMD_LINK_PROPERTIES vendor command to
send STA authorized event to supplicant.

Change-Id: I46416949f04dd28a1713cbebf1f7d0e84b5efda2
CRs-Fixed: 2172816

2 files changed, 75 insertions, 0 deletions

diff --git a/core/hdd/src/wlan_hdd_cfg80211.c b/core/hdd/src/wlan_hdd_cfg80211.c
index 0fa9f313d604..3a0a0287baa3 100644
--- a/core/hdd/src/wlan_hdd_cfg80211.c
+++ b/core/hdd/src/wlan_hdd_cfg80211.c
@@ -1252,6 +1252,10 @@ static const struct nl80211_vendor_cmd_info wlan_hdd_cfg80211_vendor_events[] =
 		.vendor_id = QCA_NL80211_VENDOR_ID,
 		.subcmd = QCA_NL80211_VENDOR_SUBCMD_HANG,
 	},
+	[QCA_NL80211_VENDOR_SUBCMD_LINK_PROPERTIES_INDEX] = {
+	.vendor_id = QCA_NL80211_VENDOR_ID,
+	.subcmd = QCA_NL80211_VENDOR_SUBCMD_LINK_PROPERTIES,
+	},
 };
 
 /**
@@ -14595,6 +14599,67 @@ static bool wlan_hdd_is_duplicate_channel(uint8_t *arr,
 }
 #endif
 
+/*
+ *wlan_hdd_send_sta_authorized_event: Function to send station authorized
+ *event to user space in case of SAP
+ *pAdapter: Pointer to the adapter
+ *@pHddCtx: HDD Context
+ *@mac_addr: MAC address of the STA for whic the Authorized event needs to
+ *be sent
+ *This api is used to send station authorized event to user space
+ */
+static QDF_STATUS wlan_hdd_send_sta_authorized_event(
+						hdd_adapter_t *pAdapter,
+						hdd_context_t *pHddCtx,
+						struct qdf_mac_addr mac_addr)
+{
+	struct sk_buff *vendor_event;
+	uint32_t sta_flags = 0;
+	QDF_STATUS status;
+
+	ENTER();
+
+	if (!pHddCtx) {
+		hdd_err("HDD context is null");
+		return -EINVAL;
+	}
+
+	vendor_event =
+		cfg80211_vendor_event_alloc(
+			pHddCtx->wiphy, &pAdapter->wdev, sizeof(sta_flags) +
+			QDF_MAC_ADDR_SIZE + NLMSG_HDRLEN,
+			QCA_NL80211_VENDOR_SUBCMD_LINK_PROPERTIES_INDEX,
+			GFP_KERNEL);
+	if (!vendor_event) {
+		hdd_err("cfg80211_vendor_event_alloc failed");
+		return -EINVAL;
+	}
+
+	sta_flags |= BIT(NL80211_STA_FLAG_AUTHORIZED);
+
+	status = nla_put_u32(vendor_event,
+			     QCA_WLAN_VENDOR_ATTR_LINK_PROPERTIES_STA_FLAGS,
+			     sta_flags);
+	if (status) {
+		hdd_err("STA flag put fails");
+		kfree_skb(vendor_event);
+		return QDF_STATUS_E_FAILURE;
+	}
+	status = nla_put(vendor_event,
+			 QCA_WLAN_VENDOR_ATTR_LINK_PROPERTIES_STA_MAC,
+			 QDF_MAC_ADDR_SIZE, mac_addr.bytes);
+	if (status) {
+		hdd_err("STA MAC put fails");
+		kfree_skb(vendor_event);
+		return QDF_STATUS_E_FAILURE;
+	}
+
+	cfg80211_vendor_event(vendor_event, GFP_KERNEL);
+
+	EXIT();
+	return 0;
+}
+
 /**
  * __wlan_hdd_change_station() - change station
  * @wiphy: Pointer to the wiphy structure
@@ -14666,6 +14731,13 @@ static int __wlan_hdd_change_station(struct wiphy *wiphy,
 				hdd_debug("Not able to change TL state to AUTHENTICATED");
 				return -EINVAL;
 			}
+			status = wlan_hdd_send_sta_authorized_event(
+								pAdapter,
+								pHddCtx,
+								STAMacAddress);
+			if (status != QDF_STATUS_SUCCESS) {
+				return -EINVAL;
+			}
 		}
 	} else if ((pAdapter->device_mode == QDF_STA_MODE) ||
 		   (pAdapter->device_mode == QDF_P2P_CLIENT_MODE)) {
diff --git a/uapi/linux/qca_vendor.h b/uapi/linux/qca_vendor.h
index ec460be881c3..80640fac266e 100644
--- a/uapi/linux/qca_vendor.h
+++ b/uapi/linux/qca_vendor.h
@@ -784,6 +784,7 @@ enum qca_nl80211_vendor_subcmds_index {
 	QCA_NL80211_VENDOR_SUBCMD_NUD_STATS_GET_INDEX,
 	QCA_NL80211_VENDOR_SUBCMD_PWR_SAVE_FAIL_DETECTED_INDEX,
 	QCA_NL80211_VENDOR_SUBCMD_HANG_REASON_INDEX,
+	QCA_NL80211_VENDOR_SUBCMD_LINK_PROPERTIES_INDEX,
 };
 
 /**
@@ -2860,6 +2861,8 @@ enum qca_wlan_vendor_attr_link_properties {
 	QCA_WLAN_VENDOR_ATTR_LINK_PROPERTIES_NSS = 1,
 	QCA_WLAN_VENDOR_ATTR_LINK_PROPERTIES_RATE_FLAGS = 2,
 	QCA_WLAN_VENDOR_ATTR_LINK_PROPERTIES_FREQ = 3,
+	QCA_WLAN_VENDOR_ATTR_LINK_PROPERTIES_STA_FLAGS  = 4,
+	QCA_WLAN_VENDOR_ATTR_LINK_PROPERTIES_STA_MAC  = 5,
 
 	/* KEEP LAST */
 	QCA_WLAN_VENDOR_ATTR_LINK_PROPERTIES_AFTER_LAST,