Set BSS config parameters max-inactivity, skip_inactivity_poll and max num_sta

doc/releases/release-notes-3.7.rst

@@ -284,6 +284,19 @@ Drivers and Sensors
   * Added support for configuring RTS threshold. With this, users can set the RTS threshold value or
     disable the RTS mechanism.
 
+  * Added support for configuring AP parameters. With this, users can set AP parameters at
+    build and run time.
+
+  * Added support to configure "max_inactivity" BSS parameter. Users can set this both build and runtime
+    duration to control the maximum time duration after which AP may disconnect a STA due to inactivity
+    from STA.
+
+  * Added support to configure "inactivity_poll" BSS parameter. Users can set build only AP parameter
+    to control whether AP may poll the STA before throwing away STA due to inactivity.
+
+  * Added support to configure "max_num_sta" BSS parameter. Users can set this both build and run time
+    parameter to control the maximum numuber of STA entries.
+
 Networking
 **********
 

include/zephyr/net/wifi.h

@@ -494,6 +494,14 @@ static inline const char *wifi_ps_get_config_err_code_str(int16_t err_no)
 	return "<unknown>";
 }
 
+/** @brief Wi-Fi AP mode configuration parameter */
+enum wifi_ap_config_param {
+	/** Used for AP mode configuration parameter ap_max_inactivity */
+	WIFI_AP_CONFIG_PARAM_MAX_INACTIVITY = BIT(0),
+	/** Used for AP mode configuration parameter max_num_sta */
+	WIFI_AP_CONFIG_PARAM_MAX_NUM_STA = BIT(1),
+};
+
 #ifdef __cplusplus
 }
 #endif

include/zephyr/net/wifi_mgmt.h

@@ -52,6 +52,7 @@ extern "C" {
 #define WIFI_MGMT_BAND_STR_SIZE_MAX 8
 #define WIFI_MGMT_SCAN_MAX_BSS_CNT 65535
 
+#define WIFI_MGMT_SKIP_INACTIVITY_POLL IS_ENABLED(CONFIG_WIFI_MGMT_AP_STA_SKIP_INACTIVITY_POLL)
 /** @endcond */
 
 /** @brief Wi-Fi management commands */
@@ -88,7 +89,8 @@ enum net_request_wifi_cmd {
 	NET_REQUEST_WIFI_CMD_VERSION,
 	/** Set RTS threshold */
 	NET_REQUEST_WIFI_CMD_RTS_THRESHOLD,
-
+	/** Configure AP parameter */
+	NET_REQUEST_WIFI_CMD_AP_CONFIG_PARAM,
 /** @cond INTERNAL_HIDDEN */
 	NET_REQUEST_WIFI_CMD_MAX
 /** @endcond */
@@ -184,12 +186,18 @@ NET_MGMT_DEFINE_REQUEST_HANDLER(NET_REQUEST_WIFI_AP_STA_DISCONNECT);
 
 NET_MGMT_DEFINE_REQUEST_HANDLER(NET_REQUEST_WIFI_VERSION);
 
-/** Request a Wi-Fi RTS threashold */
+/** Request a Wi-Fi RTS threshold */
 #define NET_REQUEST_WIFI_RTS_THRESHOLD				\
 	(_NET_WIFI_BASE | NET_REQUEST_WIFI_CMD_RTS_THRESHOLD)
 
 NET_MGMT_DEFINE_REQUEST_HANDLER(NET_REQUEST_WIFI_RTS_THRESHOLD);
 
+/** Request a Wi-Fi AP parameters configuration */
+#define NET_REQUEST_WIFI_AP_CONFIG_PARAM         \
+	(_NET_WIFI_BASE | NET_REQUEST_WIFI_CMD_AP_CONFIG_PARAM)
+
+NET_MGMT_DEFINE_REQUEST_HANDLER(NET_REQUEST_WIFI_AP_CONFIG_PARAM);
+
 /** @brief Wi-Fi management events */
 enum net_event_wifi_cmd {
 	/** Scan results available */
@@ -746,6 +754,20 @@ struct wifi_channel_info {
 	enum wifi_mgmt_op oper;
 };
 
+/** @cond INTERNAL_HIDDEN */
+#define WIFI_AP_STA_MAX_INACTIVITY (LONG_MAX - 1)
+/** @endcond */
+
+/** @brief Wi-Fi AP configuration parameter */
+struct wifi_ap_config_params {
+	/** Parameter used to identify the different AP parameters */
+	enum wifi_ap_config_param type;
+	/** Parameter used for setting maximum inactivity duration for stations */
+	uint32_t max_inactivity;
+	/** Parameter used for setting maximum number of stations */
+	uint32_t max_num_sta;
+};
+
 #include <zephyr/net/net_if.h>
 
 /** Scan result callback
@@ -919,7 +941,14 @@ struct wifi_mgmt_ops {
 	 * @return 0 if ok, < 0 if error
 	 */
 	int (*set_rts_threshold)(const struct device *dev, unsigned int rts_threshold);
-
+	/** Configure AP parameter
+	 *
+	 * @param dev Pointer to the device structure for the driver instance.
+	 * @param params AP mode parameter configuration parameter info
+	 *
+	 * @return 0 if ok, < 0 if error
+	 */
+	int (*ap_config_params)(const struct device *dev, struct wifi_ap_config_params *params);
 };
 
 /** Wi-Fi management offload API */

subsys/net/l2/wifi/Kconfig

@@ -93,3 +93,29 @@ module-str = Log level for Wi-Fi Network manager module
 module-help = Enables using the Wi-Fi Network managers to manage the Wi-Fi network interfaces.
 source "subsys/net/Kconfig.template.log_config.net"
 endif # WIFI_NM
+
+config WIFI_MGMT_AP_STA_INACTIVITY_TIMEOUT
+	int "Station inactivity timeout in seconds"
+	default 300
+	help
+	  Station inactivity timeout is the period for which AP may keep a client
+	  in associated state while there is no traffic from that particular
+	  client. If a non-zero value is set, AP may choose to disassociate the
+	  client after the timeout.
+
+config WIFI_MGMT_AP_STA_SKIP_INACTIVITY_POLL
+	bool "Skip inactivity poll for stations after the inactivity timeout"
+	help
+	  Skip inactivity poll for stations after the inactivity timeout. This
+	  will prevent the AP from sending null data frames to the stations after
+	  the inactivity timeout. This is useful to disconnect idle stations even
+	  if they are within the range of the AP.
+	  Note: This is only build time parameter, runtime configuration not supported.
+
+config WIFI_MGMT_AP_MAX_NUM_STA
+	int "Maximum number of stations allowed in station table"
+	range 1 2007
+	default 4
+	help
+	  Maximum number of stations allowed in station table. New stations will be
+	  rejected after the station table is full.

subsys/net/l2/wifi/wifi_mgmt.c

@@ -435,6 +435,40 @@ static int wifi_ap_sta_disconnect(uint32_t mgmt_request, struct net_if *iface,
 
 NET_MGMT_REGISTER_REQUEST_HANDLER(NET_REQUEST_WIFI_AP_STA_DISCONNECT, wifi_ap_sta_disconnect);
 
+static int wifi_ap_config_params(uint32_t mgmt_request, struct net_if *iface,
+				 void *data, size_t len)
+{
+	const struct device *dev = net_if_get_device(iface);
+	const struct wifi_mgmt_ops *const wifi_mgmt_api = get_wifi_api(iface);
+	struct wifi_ap_config_params *params = data;
+
+	if (dev == NULL) {
+		return -ENODEV;
+	}
+
+	if (wifi_mgmt_api == NULL ||
+	    wifi_mgmt_api->ap_config_params == NULL) {
+		return -ENOTSUP;
+	}
+
+	if (!data || len != sizeof(*params)) {
+		return -EINVAL;
+	}
+
+	if (params->type & WIFI_AP_CONFIG_PARAM_MAX_NUM_STA) {
+		if (params->max_num_sta > CONFIG_WIFI_MGMT_AP_MAX_NUM_STA) {
+			LOG_INF("Maximum number of stations(%d) "
+				"exceeded default configured value = %d.",
+				params->max_num_sta, CONFIG_WIFI_MGMT_AP_MAX_NUM_STA);
+			return -EINVAL;
+		}
+	}
+
+	return wifi_mgmt_api->ap_config_params(dev, params);
+}
+
+NET_MGMT_REGISTER_REQUEST_HANDLER(NET_REQUEST_WIFI_AP_CONFIG_PARAM, wifi_ap_config_params);
+
 static int wifi_iface_status(uint32_t mgmt_request, struct net_if *iface,
 			  void *data, size_t len)
 {