/*
 * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The OpenAirInterface Software Alliance licenses this file to You under
 * the OAI Public License, Version 1.1  (the "License"); you may not use this file
 * except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.openairinterface.org/?page_id=698
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *-------------------------------------------------------------------------------
 * For more information about the OpenAirInterface (OAI) Software Alliance:
 *      contact@openairinterface.org
 */

/*****************************************************************************
ource      EmmRegisteredUpdateNeeded.c

Version     0.1

Date        2012/10/03

Product     NAS stack

Subsystem   EPS Mobility Management

Author      Frederic Maurel

Description Implements the EPS Mobility Management procedures executed
        when the EMM-SAP is in EMM-REGISTERED.UPDATE-NEEDED state.

        In EMM-REGISTERED.UPDATE-NEEDED state, the UE has to perform
        a tracking area updating or combined tracking area updating
        procedure, but access to the current cell is barred. The access
        class may be blocked due to access class control, or the
        network rejected the NAS signalling connection establishment.
        No EMM procedure except tracking area updating or combined
        tracking area updating or service request as a response to
        paging shall be initiated by the UE in this substate.

*****************************************************************************/


#include "emm_fsm.h"
#include "commonDef.h"
#include "nas_log.h"

#include <assert.h>

/****************************************************************************/
/****************  E X T E R N A L    D E F I N I T I O N S  ****************/
/****************************************************************************/

/****************************************************************************/
/*******************  L O C A L    D E F I N I T I O N S  *******************/
/****************************************************************************/

/****************************************************************************/
/******************  E X P O R T E D    F U N C T I O N S  ******************/
/****************************************************************************/

/****************************************************************************
 **                                                                        **
 ** Name:    EmmRegisteredUpdateNeeded()                               **
 **                                                                        **
 ** Description: Handles the behaviour of the UE while the EMM-SAP is in   **
 **      EMM-REGISTERED.UPDATE-NEEDED state.                       **
 **                                                                        **
 ** Inputs:  evt:       The received EMM-SAP event                 **
 **      Others:    emm_fsm_status                             **
 **                                                                        **
 ** Outputs:     None                                                      **
 **      Return:    RETURNok, RETURNerror                      **
 **      Others:    emm_fsm_status                             **
 **                                                                        **
 ***************************************************************************/
int EmmRegisteredUpdateNeeded(nas_user_t *user, const emm_reg_t *evt)
{
  LOG_FUNC_IN;

  assert(emm_fsm_get_status(user) == EMM_REGISTERED_UPDATE_NEEDED);

  /* TODO */

  LOG_FUNC_RETURN (RETURNok);
}

/****************************************************************************/
/*********************  L O C A L    F U N C T I O N S  *********************/
/****************************************************************************/

