gauthier
7b5431a62c
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7886 818b1a75-f10b-46b9-bf7c-635c3b92a50f
197 lines
7.7 KiB
C
Executable File
197 lines
7.7 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 EsmStatus.c
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Version 0.1
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Date 2013/06/17
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Product NAS stack
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Subsystem EPS Session Management
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Author Frederic Maurel
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Description Defines the ESM status procedure executed by the Non-Access
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Stratum.
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ESM status procedure can be related to an EPS bearer context
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or to a procedure transaction.
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The purpose of the sending of the ESM STATUS message is to
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report at any time certain error conditions detected upon
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receipt of ESM protocol data. The ESM STATUS message can be
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sent by both the MME and the UE.
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*****************************************************************************/
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#include "esm_proc.h"
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#include "commonDef.h"
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#include "nas_log.h"
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#include "esm_cause.h"
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#include "emm_sap.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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/****************************************************************************/
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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: esm_proc_status_ind() **
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** **
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** Description: Processes received ESM status message. **
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** **
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** 3GPP TS 24.301, section 6.7 **
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** Upon receiving ESM Status message the UE/MME shall take **
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** different actions depending on the received ESM cause **
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** value. **
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** **
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** Inputs: ueid: UE lower layer identifier **
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** pti: Procedure transaction identity **
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** ebi: EPS bearer identity **
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** esm_cause: Received ESM cause code **
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** failure **
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** Others: None **
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** **
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** Outputs: esm_cause: Cause code returned upon ESM procedure **
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** failure **
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** Return: RETURNok, RETURNerror **
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** Others: None **
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** **
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***************************************************************************/
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int esm_proc_status_ind(
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int pti, int ebi, int *esm_cause)
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{
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LOG_FUNC_IN;
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int rc;
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LOG_TRACE(INFO,"ESM-PROC - ESM status procedure requested (cause=%d)",
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*esm_cause);
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LOG_TRACE(DEBUG, "ESM-PROC - To be implemented");
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switch (*esm_cause) {
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case ESM_CAUSE_INVALID_EPS_BEARER_IDENTITY:
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/*
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* Abort any ongoing ESM procedure related to the received EPS
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* bearer identity, stop any related timer, and deactivate the
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* corresponding EPS bearer context locally
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*/
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/* TODO */
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rc = RETURNok;
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break;
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case ESM_CAUSE_INVALID_PTI_VALUE:
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/*
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* Abort any ongoing ESM procedure related to the received PTI
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* value and stop any related timer
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*/
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/* TODO */
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rc = RETURNok;
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break;
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case ESM_CAUSE_MESSAGE_TYPE_NOT_IMPLEMENTED:
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/*
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* Abort any ongoing ESM procedure related to the PTI or
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* EPS bearer identity and stop any related timer
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*/
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/* TODO */
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rc = RETURNok;
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break;
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default:
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/*
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* No state transition and no specific action shall be taken;
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* local actions are possible
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*/
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/* TODO */
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rc = RETURNok;
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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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** **
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** Name: esm_proc_status() **
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** **
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** Description: Initiates ESM status procedure. **
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** **
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** Inputs: is_standalone: Not used - Always TRUE **
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** ueid: UE lower layer identifier **
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** ebi: Not used **
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** msg: Encoded ESM status message to be sent **
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** ue_triggered: Not used **
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** Others: None **
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** **
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** Outputs: None **
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** Return: RETURNok, RETURNerror **
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** Others: None **
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** **
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***************************************************************************/
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int esm_proc_status(int is_standalone,
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int ebi, OctetString *msg,
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int ue_triggered)
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{
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LOG_FUNC_IN;
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int rc;
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emm_sap_t emm_sap;
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LOG_TRACE(INFO,"ESM-PROC - ESM status procedure requested");
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/*
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* Notity EMM that ESM PDU has to be forwarded to lower layers
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*/
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emm_sap.primitive = EMMESM_UNITDATA_REQ;
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emm_sap.u.emm_esm.ueid = 0;
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emm_sap.u.emm_esm.u.data.msg.length = msg->length;
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emm_sap.u.emm_esm.u.data.msg.value = msg->value;
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rc = emm_sap_send(&emm_sap);
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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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