qcacld-3.0: Add INI support for FIPS handshake offload feature

Add ini support for FIPS 4-way hanshake offload to firmware. FIPS
offload feature will add support to handle LFR 3.0 connection only
(auth/reassoc). If this ini is set then firmware will offload
4-way HS to supplicant. In the Roam sync indication firmware will
inform connected and not authenticated so that supplicant can take
care of 4-way HS.

Change-Id: I3da58910218ffc57094cac4c3cab4572631d9404
CRs-Fixed: 2459182

components/mlme/core/src/wlan_mlme_main.c

@@ -432,6 +432,8 @@ static void mlme_init_generic_cfg(struct wlan_objmgr_psoc *psoc,
 		cfg_get(psoc, CFG_REMOVE_TIME_STAMP_SYNC_CMD);
 	gen->enable_change_channel_bandwidth =
 		cfg_get(psoc, CFG_CHANGE_CHANNEL_BANDWIDTH);
+	gen->disable_4way_hs_offload =
+		cfg_get(psoc, CFG_DISABLE_4WAY_HS_OFFLOAD);
 }
 
 static void mlme_init_edca_ani_cfg(struct wlan_mlme_edca_params *edca_params)

components/mlme/dispatcher/inc/cfg_mlme_generic.h

@@ -625,6 +625,28 @@
 		CFG_CHANGE_CHANNEL_BANDWIDTH_DEFAULT, \
 		"enable change channel bw")
 
+/*
+ * <ini>
+ * disable_4way_hs_offload - Enable/Disable 4 way handshake offload to firmware
+ * @Min: 0
+ * @Max: 1
+ * @Default: 0
+ *
+ * 0  4-way HS to be handled in firmware
+ * 1  4-way HS to be handled in supplicant
+ *
+ * Related: None
+ *
+ * Supported Feature: STA Roaming
+ *
+ * Usage: External
+ *
+ * </ini>
+ */
+#define CFG_DISABLE_4WAY_HS_OFFLOAD CFG_INI_BOOL("disable_4way_hs_offload", \
+						 0, \
+						 "Enable/disable 4 way handshake offload to firmware")
+
 #define CFG_GENERIC_ALL \
 	CFG(CFG_ENABLE_DEBUG_PACKET_LOG) \
 	CFG(CFG_PMF_SA_QUERY_MAX_RETRIES) \
@@ -642,6 +664,7 @@
 	CFG(CFG_ENABLE_LPASS_SUPPORT) \
 	CFG(CFG_ENABLE_SELF_RECOVERY) \
 	CFG(CFG_ENABLE_DEAUTH_TO_DISASSOC_MAP) \
+	CFG(CFG_DISABLE_4WAY_HS_OFFLOAD) \
 	CFG(CFG_SAP_DOT11MC) \
 	CFG(CFG_ENABLE_FATAL_EVENT_TRIGGER) \
 	CFG(CFG_SUB_20_CHANNEL_WIDTH) \

components/mlme/dispatcher/inc/wlan_mlme_api.h

@@ -2214,4 +2214,14 @@ wlan_mlme_get_wps_uuid(struct wlan_mlme_wps_params *wps_params, uint8_t *data);
 QDF_STATUS
 wlan_mlme_get_self_gen_frm_pwr(struct wlan_objmgr_psoc *psoc,
 			       uint32_t *value);
+
+/*
+ * wlan_mlme_get_4way_hs_offload() - get 4-way hs offload to fw cfg
+ * @psoc: pointer to psoc object
+ * @val:  Pointer to the value which will be filled for the caller
+ *
+ * Return: QDF Status
+ */
+QDF_STATUS
+wlan_mlme_get_4way_hs_offload(struct wlan_objmgr_psoc *psoc, bool *value);
 #endif /* _WLAN_MLME_API_H_ */

components/mlme/dispatcher/inc/wlan_mlme_public_struct.h

@@ -1063,6 +1063,7 @@ struct wlan_mlme_chainmask {
  * @data_stall_recovery_fw_support: whether FW supports Data stall recovery.
  * @enable_change_channel_bandwidth: enable/disable change channel bw in mission
  * mode
+ * @disable_4way_hs_offload: enable/disable 4 way handshake offload to firmware
  */
 struct wlan_mlme_generic {
 	enum band_info band_capability;
@@ -1093,6 +1094,7 @@ struct wlan_mlme_generic {
 	bool enable_remove_time_stamp_sync_cmd;
 	bool data_stall_recovery_fw_support;
 	bool enable_change_channel_bandwidth;
+	bool disable_4way_hs_offload;
 };
 
 /*

components/mlme/dispatcher/src/wlan_mlme_api.c

@@ -3415,3 +3415,20 @@ QDF_STATUS wlan_mlme_ibss_power_save_setup(struct wlan_objmgr_psoc *psoc,
 
 	return QDF_STATUS_SUCCESS;
 }
+
+QDF_STATUS
+wlan_mlme_get_4way_hs_offload(struct wlan_objmgr_psoc *psoc, bool *value)
+{
+	struct wlan_mlme_psoc_obj *mlme_obj;
+
+	mlme_obj = mlme_get_psoc_obj(psoc);
+	if (!mlme_obj) {
+		*value = cfg_default(CFG_DISABLE_4WAY_HS_OFFLOAD);
+		mlme_legacy_err("Failed to get MLME Obj");
+		return QDF_STATUS_E_FAILURE;
+	}
+
+	*value = mlme_obj->cfg.gen.disable_4way_hs_offload;
+
+	return QDF_STATUS_SUCCESS;
+}

core/wma/src/wma_utils.c

@@ -62,6 +62,7 @@
 #include <wlan_utility.h>
 #include <wlan_mlme_main.h>
 #include "host_diag_core_log.h"
+#include <wlan_mlme_api.h>
 
 /* MCS Based rate table */
 /* HT MCS parameters with Nss = 1 */
@@ -4460,11 +4461,22 @@ static void wma_set_roam_offload_flag(tp_wma_handle wma, uint8_t vdev_id,
 {
 	QDF_STATUS status;
 	uint32_t flag = 0;
+	bool disable_4way_hs_offload;
 
-	if (is_set)
+	if (is_set) {
 		flag = WMI_ROAM_FW_OFFLOAD_ENABLE_FLAG |
 		       WMI_ROAM_BMISS_FINAL_SCAN_ENABLE_FLAG;
 
+		wlan_mlme_get_4way_hs_offload(wma->psoc,
+					      &disable_4way_hs_offload);
+		/*
+		 * If 4-way HS offload is disabled then let supplicant handle
+		 * 4way HS and firmware will still do LFR3.0 till reassoc phase.
+		 */
+		if (disable_4way_hs_offload)
+			flag |= WMI_VDEV_PARAM_SKIP_ROAM_EAPOL_4WAY_HANDSHAKE;
+	}
+
 	WMA_LOGD("%s: vdev_id:%d, is_set:%d, flag:%d, roam_offload_enabled:%d",
 		 __func__, vdev_id, is_set, flag,
 		  wma->interfaces[vdev_id].roam_offload_enabled);