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