qcacld-3.0: Add t2lm negotiation support checks

Add check's in following cases if STA does
not support T2LM negotiation.
1. Do not send T2LM wmi when T2LM IE is present in
 beacon or probe response or assoc response.
2. Skip T2LM candidate validation during connection.
3. Drop T2LM action request frame.

CRs-Fixed: 3610173
Change-Id: I9d45bd005675250f6739ce897ab5b482f27f1417

components/umac/mlme/mlo_mgr/src/wlan_t2lm_api.c

@@ -146,6 +146,19 @@ QDF_STATUS t2lm_handle_rx_req(struct wlan_objmgr_vdev *vdev,
 	bool valid_map = false;
 	QDF_STATUS status;
 	struct wlan_mlo_peer_context *ml_peer;
+	struct wlan_objmgr_psoc *psoc;
+
+	if (!vdev)
+		return QDF_STATUS_E_NULL_VALUE;
+
+	psoc = wlan_vdev_get_psoc(vdev);
+	if (!psoc)
+		return QDF_STATUS_E_NULL_VALUE;
+
+	if (!wlan_mlme_get_t2lm_negotiation_supported(psoc)) {
+		mlme_rl_debug("T2LM negotiation not supported");
+		return QDF_STATUS_E_NOSUPPORT;
+	}
 
 	ml_peer = peer->mlo_peer_ctx;
 	if (!ml_peer)
@@ -449,11 +462,20 @@ wlan_t2lm_validate_candidate(struct cnx_mgr *cm_ctx,
 	uint16_t tid_map_link_id;
 	uint16_t established_tid_mapped_link_id = 0;
 	uint16_t upcoming_tid_mapped_link_id = 0;
+	struct wlan_objmgr_psoc *psoc;
 
 	if (!scan_entry || !cm_ctx || !cm_ctx->vdev)
 		return QDF_STATUS_E_NULL_VALUE;
 
 	vdev = cm_ctx->vdev;
+	psoc = wlan_vdev_get_psoc(vdev);
+	if (!psoc)
+		return QDF_STATUS_E_NULL_VALUE;
+
+	if (!wlan_mlme_get_t2lm_negotiation_supported(psoc)) {
+		mlme_rl_debug("T2LM negotiation not supported");
+		return QDF_STATUS_SUCCESS;
+	}
 
 	/*
 	 * Skip T2LM validation for following cases:

core/mac/src/pe/lim/lim_process_action_frame.c

@@ -1727,6 +1727,7 @@ void lim_process_action_frame(struct mac_context *mac_ctx,
 	enum wlan_t2lm_resp_frm_type status_code;
 	uint8_t token = 0;
 	struct wlan_objmgr_peer *peer = NULL;
+	QDF_STATUS status;
 
 	if (frame_len < sizeof(*action_hdr)) {
 		pe_debug("frame_len %d less than Action Frame Hdr size",
@@ -2184,17 +2185,20 @@ void lim_process_action_frame(struct mac_context *mac_ctx,
 		}
 		switch (action_hdr->actionID) {
 		case EHT_T2LM_REQUEST:
-			if (wlan_t2lm_deliver_event(
+			status = wlan_t2lm_deliver_event(
 				session->vdev, peer,
 				WLAN_T2LM_EV_ACTION_FRAME_RX_REQ,
 				(void *)body_ptr, frame_len,
-				&token) == QDF_STATUS_SUCCESS)
+				&token);
+			if (QDF_IS_STATUS_SUCCESS(status))
 				status_code = WLAN_T2LM_RESP_TYPE_SUCCESS;
 			else
 				status_code =
 				WLAN_T2LM_RESP_TYPE_DENIED_TID_TO_LINK_MAPPING;
 
-			if (lim_send_t2lm_action_rsp_frame(
+			if (status == QDF_STATUS_E_NOSUPPORT)
+				pe_err("STA does not support T2LM drop frame");
+			else if (lim_send_t2lm_action_rsp_frame(
 					mac_ctx, mac_hdr->sa, session, token,
 					status_code) != QDF_STATUS_SUCCESS) {
 				pe_err("T2LM action response frame not sent");

core/mac/src/pe/lim/lim_process_assoc_rsp_frame.c

@@ -940,6 +940,7 @@ lim_process_assoc_rsp_t2lm(struct pe_session *session,
 	struct wlan_objmgr_vdev *vdev;
 	struct wlan_t2lm_context *t2lm_ctx;
 	struct wlan_mlo_dev_context *mlo_dev_ctx;
+	struct wlan_objmgr_psoc *psoc;
 
 	if (!session || !assoc_rsp) {
 		pe_err("invalid input parameters");
@@ -950,6 +951,15 @@ lim_process_assoc_rsp_t2lm(struct pe_session *session,
 	if (!vdev || !wlan_vdev_mlme_is_mlo_vdev(vdev))
 		return;
 
+	psoc = wlan_vdev_get_psoc(vdev);
+	if (!psoc)
+		return;
+
+	if (!wlan_mlme_get_t2lm_negotiation_supported(psoc)) {
+		pe_err_rl("T2LM negotiation not supported");
+		return;
+	}
+
 	mlo_dev_ctx = wlan_vdev_get_mlo_dev_ctx(vdev);
 	if (!mlo_dev_ctx) {
 		pe_err("ml dev ctx is null");

core/mac/src/pe/lim/lim_process_beacon_frame.c

@@ -68,6 +68,11 @@ void lim_process_bcn_prb_rsp_t2lm(struct mac_context *mac_ctx,
 		return;
 	}
 
+	if (!wlan_mlme_get_t2lm_negotiation_supported(mac_ctx->psoc)) {
+		pe_err_rl("T2LM negotiation not supported");
+		return;
+	}
+
 	vdev = session->vdev;
 	if (!vdev || !wlan_vdev_mlme_is_mlo_vdev(vdev))
 		return;