qcacld-3.0: Add GET_KEEP_ALIVE_INTERVAL command support

Add support to handle GET_KEEP_ALIVE_INETRVAL command.
If received command in connected state return keep alive
period configured to firmware but if command received in
disconnected state, if user space has set keep alive
period then return the user space configured value or
else return INI configured value.

Change-Id: I5d386ecd141531795b471198bd70afa20210bdc5
CRs-Fixed: 3818096

components/mlme/core/inc/wlan_mlme_main.h

@@ -827,7 +827,7 @@ struct enhance_roam_info {
  *				operation on bss color collision detection
  * @bss_color_change_runtime_lock: runtime lock to complete bss color change
  * @disconnect_runtime_lock: runtime lock to complete disconnection
- * @best_6g_power_type: best 6g power type
+ * @keep_alive_period: KEEPALIVE period in seconds
  */
 struct mlme_legacy_priv {
 	bool chan_switch_in_progress;
@@ -900,6 +900,7 @@ struct mlme_legacy_priv {
 	qdf_runtime_lock_t bss_color_change_runtime_lock;
 	qdf_runtime_lock_t disconnect_runtime_lock;
 	enum reg_6g_ap_type best_6g_power_type;
+	uint16_t keep_alive_period;
 };
 
 /**

components/mlme/dispatcher/inc/wlan_mlme_api.h

@@ -4985,4 +4985,21 @@ wlan_mlme_send_csa_event_status_ind(struct wlan_objmgr_vdev *vdev,
 QDF_STATUS
 wlan_mlme_is_hs_20_btm_offload_disabled(struct wlan_objmgr_psoc *psoc,
 					bool *val);
+/**
+ * wlan_mlme_set_keepalive_period() - Save keep alive period
+ * @vdev: VDEV object
+ * @keep_alive_period: Keep alive period
+ *
+ * Return: None
+ */
+void wlan_mlme_set_keepalive_period(struct wlan_objmgr_vdev *vdev,
+				    uint16_t keep_alive_period);
+
+/**
+ * wlan_mlme_get_keepalive_period() - Get keep alive period
+ * @vdev: VDEV object
+ *
+ * Return: Keep alive period.
+ */
+uint16_t wlan_mlme_get_keepalive_period(struct wlan_objmgr_vdev *vdev);
 #endif /* _WLAN_MLME_API_H_ */

components/mlme/dispatcher/inc/wlan_mlme_ucfg_api.h

@@ -5436,4 +5436,16 @@ ucfg_mlme_assemble_rate_code(uint8_t preamble, uint8_t nss, uint8_t rate)
 {
 	return wlan_mlme_assemble_rate_code(preamble, nss, rate);
 }
+
+/**
+ * ucfg_mlme_get_keepalive_period() - Get keep alive period
+ * @vdev: VDEV object
+ *
+ * Return: Keep alive period.
+ */
+static inline
+uint16_t ucfg_mlme_get_keepalive_period(struct wlan_objmgr_vdev *vdev)
+{
+	return wlan_mlme_get_keepalive_period(vdev);
+}
 #endif /* _WLAN_MLME_UCFG_API_H_ */

components/mlme/dispatcher/src/wlan_mlme_api.c

@@ -8406,3 +8406,29 @@ wlan_mlme_is_hs_20_btm_offload_disabled(struct wlan_objmgr_psoc *psoc,
 	return QDF_STATUS_SUCCESS;
 }
 
+void wlan_mlme_set_keepalive_period(struct wlan_objmgr_vdev *vdev,
+				    uint16_t keep_alive_period)
+{
+	struct mlme_legacy_priv *mlme_priv;
+
+	mlme_priv = wlan_vdev_mlme_get_ext_hdl(vdev);
+	if (!mlme_priv) {
+		mlme_err("vdev legacy private object is NULL");
+		return;
+	}
+
+	mlme_priv->keep_alive_period = keep_alive_period;
+}
+
+uint16_t wlan_mlme_get_keepalive_period(struct wlan_objmgr_vdev *vdev)
+{
+	struct mlme_legacy_priv *mlme_priv;
+
+	mlme_priv = wlan_vdev_mlme_get_ext_hdl(vdev);
+	if (!mlme_priv) {
+		mlme_err("vdev legacy private object is NULL");
+		return 0;
+	}
+
+	return mlme_priv->keep_alive_period;
+}

core/hdd/src/wlan_hdd_cfg80211.c

@@ -13321,6 +13321,58 @@ static int hdd_get_optimized_power_config(struct wlan_hdd_link_info *link_info,
 	return 0;
 }
 
+/**
+ * hdd_get_sta_keepalive_interval() - Get keep alive interval
+ * @link_info: Link info pointer in HDD adapter
+ * @skb: sk buffer to hold nl80211 attributes
+ * @attr: Pointer to struct nlattr
+ *
+ * Return: 0 on success; error number otherwise
+ */
+static int hdd_get_sta_keepalive_interval(struct wlan_hdd_link_info *link_info,
+					  struct sk_buff *skb,
+					  const struct nlattr *attr)
+{
+	struct hdd_adapter *adapter = link_info->adapter;
+	struct hdd_context *hdd_ctx = WLAN_HDD_GET_CTX(adapter);
+	enum QDF_OPMODE device_mode = adapter->device_mode;
+	uint32_t keep_alive_interval;
+	struct wlan_objmgr_vdev *vdev;
+
+	if (device_mode != QDF_STA_MODE) {
+		hdd_debug("This command is not supported for %s device mode",
+			  device_mode_to_string(device_mode));
+		return -EINVAL;
+	}
+
+	if (!hdd_is_vdev_in_conn_state(link_info)) {
+		if (adapter->keep_alive_interval)
+			keep_alive_interval = adapter->keep_alive_interval;
+		else
+			ucfg_mlme_get_sta_keep_alive_period(
+							hdd_ctx->psoc,
+							&keep_alive_interval);
+	} else {
+		vdev = hdd_objmgr_get_vdev_by_user(link_info, WLAN_OSIF_CM_ID);
+		if (!vdev) {
+			hdd_err("vdev is NULL");
+			return -EINVAL;
+		}
+
+		keep_alive_interval = ucfg_mlme_get_keepalive_period(vdev);
+		hdd_objmgr_put_vdev_by_user(vdev, WLAN_OSIF_CM_ID);
+	}
+
+	hdd_debug("STA KEEPALIVE interval = %d", keep_alive_interval);
+	if (nla_put_u16(skb, QCA_WLAN_VENDOR_ATTR_CONFIG_KEEP_ALIVE_INTERVAL,
+			keep_alive_interval)) {
+		hdd_err("nla_put failure");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 /**
  * typedef config_getter_fn - get configuration handler
  * @link_info: Link info pointer in HDD adapter
@@ -13408,6 +13460,9 @@ static const struct config_getters config_getters[] = {
 	 {QCA_WLAN_VENDOR_ATTR_CONFIG_MLO_LINKS,
 	 WLAN_MAX_ML_BSS_LINKS * sizeof(uint8_t) * 2,
 	 hdd_get_mlo_max_band_info},
+	 {QCA_WLAN_VENDOR_ATTR_CONFIG_KEEP_ALIVE_INTERVAL,
+	  sizeof(uint16_t),
+	  hdd_get_sta_keepalive_interval},
 };
 
 /**

core/wma/src/wma_mgmt.c

@@ -879,6 +879,8 @@ void wma_set_sta_keep_alive(tp_wma_handle wma, uint8_t vdev_id,
 			if (method == WMI_KEEP_ALIVE_NULL_PKT)
 				params.method = WMI_KEEP_ALIVE_MGMT_FRAME;
 		}
+
+		wlan_mlme_set_keepalive_period(intr->vdev, params.timeperiod);
 	}
 
 	if (hostv4addr)