gauthier
7b5431a62c
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7886 818b1a75-f10b-46b9-bf7c-635c3b92a50f
179 lines
6.7 KiB
C
Executable File
179 lines
6.7 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 emm_esm.c
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Version 0.1
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Date 2012/10/16
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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 Defines the EMMESM Service Access Point that provides
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interlayer services to the EPS Session Management sublayer
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for service registration and activate/deactivate PDN
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connections.
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*****************************************************************************/
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#include "emm_esm.h"
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#include "commonDef.h"
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#include "nas_log.h"
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#include "LowerLayer.h"
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#include "emm_proc.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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* String representation of EMMESM-SAP primitives
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*/
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static const char *_emm_esm_primitive_str[] = {
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"EMMESM_ESTABLISH_REQ",
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"EMMESM_ESTABLISH_CNF",
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"EMMESM_ESTABLISH_REJ",
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"EMMESM_RELEASE_IND",
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"EMMESM_UNITDATA_REQ",
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"EMMESM_UNITDATA_IND",
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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: emm_esm_initialize() **
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** **
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** Description: Initializes the EMMESM Service Access Point **
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** **
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** Inputs: None **
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** Others: None **
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** **
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** Outputs: None **
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** Return: None **
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** Others: NONE **
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** **
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***************************************************************************/
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void emm_esm_initialize(void)
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{
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LOG_FUNC_IN;
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/* TODO: Initialize the EMMESM-SAP */
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LOG_FUNC_OUT;
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}
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/****************************************************************************
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** **
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** Name: emm_esm_send() **
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** **
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** Description: Processes the EMMESM Service Access Point primitive **
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** **
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** Inputs: msg: The EMMESM-SAP primitive to process **
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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 emm_esm_send(const emm_esm_t *msg)
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{
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LOG_FUNC_IN;
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int rc = RETURNerror;
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emm_esm_primitive_t primitive = msg->primitive;
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LOG_TRACE(INFO, "EMMESM-SAP - Received primitive %s (%d)",
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_emm_esm_primitive_str[primitive - _EMMESM_START - 1], primitive);
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switch (primitive) {
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case _EMMESM_ESTABLISH_REQ:
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/* ESM requests EMM to initiate an attach procedure before
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* requesting subsequent connectivity to additional PDNs */
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rc = emm_proc_attach_restart();
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break;
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case _EMMESM_ESTABLISH_CNF:
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/* ESM notifies EMM that PDN connectivity procedure successfully
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* processed */
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if (msg->u.establish.is_attached) {
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if (msg->u.establish.is_emergency) {
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/* Consider the UE attached for emergency bearer services
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* only */
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rc = emm_proc_attach_set_emergency();
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}
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} else {
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/* Consider the UE locally detached from the network */
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rc = emm_proc_attach_set_detach();
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}
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break;
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case _EMMESM_ESTABLISH_REJ:
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/* ESM notifies EMM that PDN connectivity procedure failed */
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break;
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case _EMMESM_UNITDATA_REQ:
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/* ESM requests EMM to transfer ESM data unit to lower layer */
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rc = lowerlayer_data_req(msg->ueid, &msg->u.data.msg);
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break;
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default:
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break;
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}
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if (rc != RETURNok) {
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LOG_TRACE(WARNING, "EMMESM-SAP - Failed to process primitive %s (%d)",
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_emm_esm_primitive_str[primitive - _EMMESM_START - 1],
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primitive);
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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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