183 lines
6.3 KiB
C
Executable File
183 lines
6.3 KiB
C
Executable File
/*******************************************************************************
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OpenAirInterface
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Copyright(c) 1999 - 2014 Eurecom
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OpenAirInterface is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenAirInterface is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OpenAirInterface.The full GNU General Public License is
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included in this distribution in the file called "COPYING". If not,
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see <http://www.gnu.org/licenses/>.
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Contact Information
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OpenAirInterface Admin: openair_admin@eurecom.fr
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OpenAirInterface Tech : openair_tech@eurecom.fr
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OpenAirInterface Dev : openair4g-devel@lists.eurecom.fr
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Address : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France.
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*******************************************************************************/
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/*****************************************************************************
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Source EmmDeregisteredNormalService.c
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Version 0.1
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Date 2012/10/03
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Product NAS stack
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Subsystem EPS Mobility Management
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Author Frederic Maurel
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Description Implements the EPS Mobility Management procedures executed
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when the EMM-SAP is in EMM-DEREGISTERED.NORMAL-SERVICE state.
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In EMM-DEREGISTERED.NORMAL-SERVICE state, the EPS update
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status is EU1 or EU2, in the meantime a suitable cell has
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been found and the PLMN or tracking area is not in the
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forbidden list.
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*****************************************************************************/
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#include "emm_fsm.h"
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#include "commonDef.h"
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#include "networkDef.h"
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#include "nas_log.h"
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#include "emm_proc.h"
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#include <assert.h>
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/****************************************************************************/
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/**************** E X T E R N A L D E F I N I T I O N S ****************/
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/****************************************************************************/
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extern uint8_t usim_test;
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/****************************************************************************/
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/******************* L O C A L D E F I N I T I O N S *******************/
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/****************************************************************************/
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/****************************************************************************/
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/****************** E X P O R T E D F U N C T I O N S ******************/
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/****************************************************************************/
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/****************************************************************************
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** **
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** Name: EmmDeregisteredNormalService() **
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** **
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** Description: Handles the behaviour of the UE while the EMM-SAP is in **
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** EMM-DEREGISTERED.NORMAL-SERVICE state. **
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** **
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** 3GPP TS 24.301, section 5.2.2.3.1 **
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** The UE shall initiate an attach or combined attach proce- **
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** dure. **
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** **
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** Inputs: evt: The received EMM-SAP event **
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** Others: emm_fsm_status **
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** **
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** Outputs: None **
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** Return: RETURNok, RETURNerror **
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** Others: emm_fsm_status **
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** **
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***************************************************************************/
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int EmmDeregisteredNormalService(const emm_reg_t *evt)
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{
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LOG_FUNC_IN;
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int rc = RETURNerror;
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assert(emm_fsm_get_status() == EMM_DEREGISTERED_NORMAL_SERVICE);
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switch (evt->primitive) {
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case _EMMREG_REGISTER_REQ:
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/*
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* The user manually re-selected a PLMN to register to
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*/
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rc = emm_fsm_set_status(EMM_DEREGISTERED_PLMN_SEARCH);
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if (rc != RETURNerror) {
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/* Process the network registration request */
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rc = emm_fsm_process(evt);
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}
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break;
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case _EMMREG_ATTACH_INIT:
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/*
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* Initiate the attach procedure for EPS services
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*/
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if(usim_test == 0)
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{
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rc = emm_proc_attach(EMM_ATTACH_TYPE_EPS);
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}
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else
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{
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rc = emm_proc_attach(EMM_ATTACH_TYPE_IMSI); // CMW500 IMSI initial attach expected
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}
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break;
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case _EMMREG_ATTACH_REQ:
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/*
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* An EPS network attach has been requested (Attach Request
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* message successfully delivered to the network);
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* enter state EMM-REGISTERED-INITIATED
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*/
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rc = emm_fsm_set_status(EMM_REGISTERED_INITIATED);
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break;
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case _EMMREG_LOWERLAYER_SUCCESS:
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/*
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* Initial NAS message has been successfully delivered
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* to the network
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*/
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rc = emm_proc_lowerlayer_success();
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break;
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case _EMMREG_LOWERLAYER_FAILURE:
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/*
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* Initial NAS message failed to be delivered to the network
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*/
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rc = emm_proc_lowerlayer_failure(TRUE);
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break;
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case _EMMREG_LOWERLAYER_RELEASE:
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/*
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* NAS signalling connection has been released
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*/
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rc = emm_proc_lowerlayer_release();
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break;
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case _EMMREG_ATTACH_CNF:
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/*
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* Attach procedure successful and default EPS bearer
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* context activated;
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* enter state EMM-REGISTERED.
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*/
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rc = emm_fsm_set_status(EMM_REGISTERED);
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break;
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default:
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LOG_TRACE(ERROR, "EMM-FSM - Primitive is not valid (%d)",
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evt->primitive);
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break;
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}
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LOG_FUNC_RETURN (rc);
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}
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/****************************************************************************/
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/********************* L O C A L F U N C T I O N S *********************/
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/****************************************************************************/
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