qcacld-3.0: Disconnect the preauth session if no session with bssid found

In case of deauth received when HO disconnect is in progress,
the pe session for BSSID may not be found and thus the disconnect
returns without cleaning up the ft session.

So check and cleanup the ft session before returning.

Change-Id: I2661b987d0d2498d8ceaefedcc6b945a7c033f30
CRs-Fixed: 2994624

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

@@ -3711,17 +3711,11 @@ static void lim_prepare_and_send_deauth(struct mac_context *mac_ctx,
 }
 
 static void lim_prepare_and_send_disassoc(struct mac_context *mac_ctx,
+					  struct pe_session *pe_session,
 					  struct wlan_cm_vdev_discon_req *req)
 {
-	struct pe_session *pe_session;
 	struct scheduler_msg msg = {0};
 	struct disassoc_req disassoc_req = {0};
-	uint8_t pe_session_id;
-
-	pe_session = pe_find_session_by_bssid(mac_ctx, req->req.bssid.bytes,
-					      &pe_session_id);
-	if (!pe_session)
-		return;
 
 	disassoc_req.messageType = eWNI_SME_DISASSOC_REQ;
 	disassoc_req.length = sizeof(disassoc_req);
@@ -3732,8 +3726,10 @@ static void lim_prepare_and_send_disassoc(struct mac_context *mac_ctx,
 	if (req->req.reason_code == REASON_FW_TRIGGERED_ROAM_FAILURE) {
 		disassoc_req.process_ho_fail = true;
 		disassoc_req.doNotSendOverTheAir = 1;
-	} else if (wlan_cm_is_vdev_roaming(pe_session->vdev)) {
+	} else if (wlan_cm_is_vdev_roam_reassoc_state(pe_session->vdev)) {
 		disassoc_req.doNotSendOverTheAir = 1;
+		disassoc_req.reasonCode =
+					REASON_AUTHORIZED_ACCESS_LIMIT_REACHED;
 	}
 
 	msg.bodyptr = &disassoc_req;
@@ -3742,6 +3738,7 @@ static void lim_prepare_and_send_disassoc(struct mac_context *mac_ctx,
 }
 
 static void lim_process_nb_disconnect_req(struct mac_context *mac_ctx,
+					  struct pe_session *pe_session,
 					  struct wlan_cm_vdev_discon_req *req)
 {
 	enum wlan_reason_code reason_code;
@@ -3770,7 +3767,8 @@ static void lim_process_nb_disconnect_req(struct mac_context *mac_ctx,
 					&enable_deauth_to_disassoc_map);
 		if (enable_deauth_to_disassoc_map) {
 			req->req.reason_code = REASON_DISASSOC_NETWORK_LEAVING;
-			return lim_prepare_and_send_disassoc(mac_ctx, req);
+			return lim_prepare_and_send_disassoc(mac_ctx,
+							     pe_session, req);
 		}
 		lim_prepare_and_send_deauth(mac_ctx, req);
 		break;
@@ -3778,7 +3776,7 @@ static void lim_process_nb_disconnect_req(struct mac_context *mac_ctx,
 		/* Set reason REASON_UNSPEC_FAILURE for prop disassoc */
 		if (reason_code >= REASON_PROP_START)
 			req->req.reason_code = REASON_UNSPEC_FAILURE;
-		lim_prepare_and_send_disassoc(mac_ctx, req);
+		lim_prepare_and_send_disassoc(mac_ctx, pe_session, req);
 	}
 }
 
@@ -3820,9 +3818,21 @@ lim_cm_handle_disconnect_req(struct wlan_cm_vdev_discon_req *req)
 	pe_session = pe_find_session_by_bssid(mac_ctx, req->req.bssid.bytes,
 					      &pe_session_id);
 	if (!pe_session) {
-		pe_err("vdev_id %d cm_id 0x%x: Session not found for bssid"
+		pe_err("vdev_id %d cm_id 0x%x: Session not found for bssid "
 		       QDF_MAC_ADDR_FMT, req->req.vdev_id, req->cm_id,
 		       QDF_MAC_ADDR_REF(req->req.bssid.bytes));
+		/* Check for preauth node to cleanup */
+		pe_session =
+			pe_find_session_by_vdev_id(mac_ctx, req->req.vdev_id);
+		if (pe_session &&
+		    pe_session->limSmeState == eLIM_SME_WT_REASSOC_STATE) {
+			pe_err("Deleting Preauth session(%d) vdev %d bssid "
+			       QDF_MAC_ADDR_FMT, pe_session->peSessionId,
+			       pe_session->vdev_id,
+			       QDF_MAC_ADDR_REF(pe_session->bssId));
+			pe_delete_session(mac_ctx, pe_session);
+			pe_session = NULL;
+		}
 		lim_cm_send_disconnect_rsp(mac_ctx, req->req.vdev_id);
 		return QDF_STATUS_E_INVAL;
 	}
@@ -3831,7 +3841,7 @@ lim_cm_handle_disconnect_req(struct wlan_cm_vdev_discon_req *req)
 	    req->req.source == CM_SB_DISCONNECT)
 		lim_process_sb_disconnect_req(mac_ctx, pe_session, req);
 	else
-		lim_process_nb_disconnect_req(mac_ctx, req);
+		lim_process_nb_disconnect_req(mac_ctx, pe_session, req);
 
 	return QDF_STATUS_SUCCESS;
 }