gauthier
7b5431a62c
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7886 818b1a75-f10b-46b9-bf7c-635c3b92a50f
442 lines
21 KiB
C
Executable File
442 lines
21 KiB
C
Executable File
/*******************************************************************************
|
|
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@lists.eurecom.fr
|
|
|
|
Address : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France.
|
|
|
|
*******************************************************************************/
|
|
/*****************************************************************************
|
|
Source esm_send.c
|
|
|
|
Version 0.1
|
|
|
|
Date 2013/02/11
|
|
|
|
Product NAS stack
|
|
|
|
Subsystem EPS Session Management
|
|
|
|
Author Frederic Maurel
|
|
|
|
Description Defines functions executed at the ESM Service Access
|
|
Point to send EPS Session Management messages to the
|
|
EPS Mobility Management sublayer.
|
|
|
|
*****************************************************************************/
|
|
|
|
#include "esm_send.h"
|
|
#include "commonDef.h"
|
|
#include "nas_log.h"
|
|
|
|
#include "networkDef.h"
|
|
|
|
#include "esm_msgDef.h"
|
|
#include "esm_cause.h"
|
|
|
|
#include <string.h> // strlen
|
|
|
|
/****************************************************************************/
|
|
/**************** 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 ******************/
|
|
/****************************************************************************/
|
|
|
|
/*
|
|
* --------------------------------------------------------------------------
|
|
* Functions executed by both the UE and the MME to send ESM messages
|
|
* --------------------------------------------------------------------------
|
|
*/
|
|
/****************************************************************************
|
|
** **
|
|
** Name: esm_send_status() **
|
|
** **
|
|
** Description: Builds ESM status message **
|
|
** **
|
|
** The ESM status message is sent by the network or the UE **
|
|
** to pass information on the status of the indicated EPS **
|
|
** bearer context and report certain error conditions. **
|
|
** **
|
|
** Inputs: pti: Procedure transaction identity **
|
|
** ebi: EPS bearer identity **
|
|
** esm_cause: ESM cause code **
|
|
** Others: None **
|
|
** **
|
|
** Outputs: msg: The ESM message to be sent **
|
|
** Return: RETURNok, RETURNerror **
|
|
** Others: None **
|
|
** **
|
|
***************************************************************************/
|
|
int esm_send_status(int pti, int ebi, esm_status_msg *msg, int esm_cause)
|
|
{
|
|
LOG_FUNC_IN;
|
|
|
|
/* Mandatory - ESM message header */
|
|
msg->protocoldiscriminator = EPS_SESSION_MANAGEMENT_MESSAGE;
|
|
msg->epsbeareridentity = ebi;
|
|
msg->messagetype = ESM_STATUS;
|
|
msg->proceduretransactionidentity = pti;
|
|
|
|
/* Mandatory - ESM cause code */
|
|
msg->esmcause = esm_cause;
|
|
|
|
LOG_TRACE(WARNING, "ESM-SAP - Send ESM Status message (pti=%d, ebi=%d)",
|
|
msg->proceduretransactionidentity, msg->epsbeareridentity);
|
|
|
|
LOG_FUNC_RETURN(RETURNok);
|
|
}
|
|
|
|
/*
|
|
* --------------------------------------------------------------------------
|
|
* Functions executed by the UE to send ESM message to the network
|
|
* --------------------------------------------------------------------------
|
|
*/
|
|
/****************************************************************************
|
|
** **
|
|
** Name: esm_send_pdn_connectivity_request() **
|
|
** **
|
|
** Description: Builds PDN Connectivity Request message **
|
|
** **
|
|
** The PDN connectivity request message is sent by the UE to **
|
|
** the network to initiate establishment of a PDN connection.**
|
|
** **
|
|
** Inputs: pti: Procedure transaction identity assigned to **
|
|
** the PDN connection **
|
|
** is_emergency: Indicates whether the PDN connectivity is **
|
|
** requested for emergency bearer services **
|
|
** pdn_type: PDN address type **
|
|
** apn: Access Point Name of the PDN to connect to **
|
|
** Others: None **
|
|
** **
|
|
** Outputs: msg: The ESM message to be sent **
|
|
** Return: RETURNok, RETURNerror **
|
|
** Others: None **
|
|
** **
|
|
***************************************************************************/
|
|
int esm_send_pdn_connectivity_request(int pti, int is_emergency, int pdn_type,
|
|
const char *apn,
|
|
pdn_connectivity_request_msg *msg)
|
|
{
|
|
LOG_FUNC_IN;
|
|
|
|
/* Mandatory - ESM message header */
|
|
msg->protocoldiscriminator = EPS_SESSION_MANAGEMENT_MESSAGE;
|
|
msg->epsbeareridentity = EPS_BEARER_IDENTITY_UNASSIGNED;
|
|
msg->messagetype = PDN_CONNECTIVITY_REQUEST;
|
|
msg->proceduretransactionidentity = pti;
|
|
|
|
/* Mandatory - PDN connectivity request type */
|
|
if (is_emergency) {
|
|
msg->requesttype = REQUEST_TYPE_EMERGENCY;
|
|
} else {
|
|
msg->requesttype = REQUEST_TYPE_INITIAL_REQUEST;
|
|
}
|
|
|
|
/* Mandatory - PDN type */
|
|
if (pdn_type == NET_PDN_TYPE_IPV4) {
|
|
msg->pdntype = PDN_TYPE_IPV4;
|
|
} else if (pdn_type == NET_PDN_TYPE_IPV6) {
|
|
msg->pdntype = PDN_TYPE_IPV6;
|
|
} else if (pdn_type == NET_PDN_TYPE_IPV4V6) {
|
|
msg->pdntype = PDN_TYPE_IPV4V6;
|
|
}
|
|
|
|
/* Optional - Access Point Name */
|
|
msg->presencemask = 0;
|
|
|
|
if (apn) {
|
|
size_t len = strlen(apn);
|
|
|
|
if (len > 0) {
|
|
msg->presencemask |=
|
|
PDN_CONNECTIVITY_REQUEST_ACCESS_POINT_NAME_PRESENT;
|
|
msg->accesspointname.accesspointnamevalue.length = len;
|
|
msg->accesspointname.accesspointnamevalue.value = (uint8_t *)apn;
|
|
}
|
|
}
|
|
|
|
LOG_TRACE(INFO, "ESM-SAP - Send PDN Connectivity Request message "
|
|
"(pti=%d, ebi=%d)",
|
|
msg->proceduretransactionidentity, msg->epsbeareridentity);
|
|
|
|
LOG_FUNC_RETURN(RETURNok);
|
|
}
|
|
|
|
/****************************************************************************
|
|
** **
|
|
** Name: esm_send_pdn_disconnect_request() **
|
|
** **
|
|
** Description: Builds PDN Disconnect Request message **
|
|
** **
|
|
** The PDN disconnect request message is sent by the UE to **
|
|
** the network to initiate release of a PDN connection. **
|
|
** **
|
|
** Inputs: pti: Procedure transaction identity assigned to **
|
|
** the PDN connection **
|
|
** ebi: EPS bearer identity of the default bearer **
|
|
** associated with the PDN to disconnect from **
|
|
** Others: None **
|
|
** **
|
|
** Outputs: msg: The ESM message to be sent **
|
|
** Return: RETURNok, RETURNerror **
|
|
** Others: None **
|
|
** **
|
|
***************************************************************************/
|
|
int esm_send_pdn_disconnect_request(int pti, int ebi,
|
|
pdn_disconnect_request_msg *msg)
|
|
{
|
|
LOG_FUNC_IN;
|
|
|
|
/* Mandatory - ESM message header */
|
|
msg->protocoldiscriminator = EPS_SESSION_MANAGEMENT_MESSAGE;
|
|
msg->epsbeareridentity = EPS_BEARER_IDENTITY_UNASSIGNED;
|
|
msg->messagetype = PDN_DISCONNECT_REQUEST;
|
|
msg->proceduretransactionidentity = pti;
|
|
|
|
/* Mandatory - Linked EPS bearer identity */
|
|
msg->linkedepsbeareridentity = ebi;
|
|
/* Optional IEs */
|
|
msg->presencemask = 0;
|
|
|
|
LOG_TRACE(INFO, "ESM-SAP - Send PDN Disconnect Request message "
|
|
"(pti=%d, ebi=%d)",
|
|
msg->proceduretransactionidentity, msg->epsbeareridentity);
|
|
|
|
LOG_FUNC_RETURN(RETURNok);
|
|
}
|
|
|
|
/****************************************************************************
|
|
** **
|
|
** Name: esm_send_activate_default_eps_bearer_context_accept() **
|
|
** **
|
|
** Description: Builds Activate Default EPS Bearer Context Accept message **
|
|
** **
|
|
** The activate default EPS bearer context accept message is **
|
|
** sent by the UE to the network to acknowledge activation **
|
|
** of a default EPS bearer context. **
|
|
** **
|
|
** Inputs: ebi: EPS bearer identity **
|
|
** Others: None **
|
|
** **
|
|
** Outputs: msg: The ESM message to be sent **
|
|
** Return: RETURNok, RETURNerror **
|
|
** Others: None **
|
|
** **
|
|
***************************************************************************/
|
|
int esm_send_activate_default_eps_bearer_context_accept(int ebi,
|
|
activate_default_eps_bearer_context_accept_msg *msg)
|
|
{
|
|
LOG_FUNC_IN;
|
|
|
|
/* Mandatory - ESM message header */
|
|
msg->protocoldiscriminator = EPS_SESSION_MANAGEMENT_MESSAGE;
|
|
msg->epsbeareridentity = ebi;
|
|
msg->messagetype = ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_ACCEPT;
|
|
msg->proceduretransactionidentity = PROCEDURE_TRANSACTION_IDENTITY_UNASSIGNED;
|
|
/* Mandatory IEs */
|
|
/* Optional IEs */
|
|
msg->presencemask = 0;
|
|
|
|
LOG_TRACE(INFO, "ESM-SAP - Send Activate Default EPS Bearer Context "
|
|
"Accept message (pti=%d, ebi=%d)",
|
|
msg->proceduretransactionidentity, msg->epsbeareridentity);
|
|
|
|
LOG_FUNC_RETURN(RETURNok);
|
|
}
|
|
|
|
/****************************************************************************
|
|
** **
|
|
** Name: esm_send_activate_default_eps_bearer_context_reject() **
|
|
** **
|
|
** Description: Builds Activate Default EPS Bearer Context Reject message **
|
|
** **
|
|
** The activate default EPS bearer context reject message is **
|
|
** sent by UE to the network to reject activation of a de- **
|
|
** fault EPS bearer context. **
|
|
** **
|
|
** Inputs: ebi: EPS bearer identity **
|
|
** esm_cause: ESM cause code **
|
|
** Others: None **
|
|
** **
|
|
** Outputs: msg: The ESM message to be sent **
|
|
** Return: RETURNok, RETURNerror **
|
|
** Others: None **
|
|
** **
|
|
***************************************************************************/
|
|
int esm_send_activate_default_eps_bearer_context_reject(int ebi,
|
|
activate_default_eps_bearer_context_reject_msg *msg, int esm_cause)
|
|
{
|
|
LOG_FUNC_IN;
|
|
|
|
/* Mandatory - ESM message header */
|
|
msg->protocoldiscriminator = EPS_SESSION_MANAGEMENT_MESSAGE;
|
|
msg->epsbeareridentity = ebi;
|
|
msg->messagetype = ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REJECT;
|
|
msg->proceduretransactionidentity = PROCEDURE_TRANSACTION_IDENTITY_UNASSIGNED;
|
|
/* Mandatory - ESM cause code */
|
|
msg->esmcause = esm_cause;
|
|
/* Optional IEs */
|
|
msg->presencemask = 0;
|
|
|
|
LOG_TRACE(INFO, "ESM-SAP - Send Activate Default EPS Bearer Context "
|
|
"Reject message (pti=%d, ebi=%d)",
|
|
msg->proceduretransactionidentity, msg->epsbeareridentity);
|
|
|
|
LOG_FUNC_RETURN(RETURNok);
|
|
}
|
|
|
|
/****************************************************************************
|
|
** **
|
|
** Name: esm_send_activate_dedicated_eps_bearer_context_accept() **
|
|
** **
|
|
** Description: Builds Activate Dedicated EPS Bearer Context Accept **
|
|
** message **
|
|
** **
|
|
** The activate dedicated EPS bearer context accept message **
|
|
** is sent by the UE to the network to acknowledge activa- **
|
|
** tion of a dedicated EPS bearer context associated with **
|
|
** the same PDN address(es) and APN as an already active EPS **
|
|
** bearer context. **
|
|
** **
|
|
** Inputs: ebi: EPS bearer identity **
|
|
** Others: None **
|
|
** **
|
|
** Outputs: msg: The ESM message to be sent **
|
|
** Return: RETURNok, RETURNerror **
|
|
** Others: None **
|
|
** **
|
|
***************************************************************************/
|
|
int esm_send_activate_dedicated_eps_bearer_context_accept(int ebi,
|
|
activate_dedicated_eps_bearer_context_accept_msg *msg)
|
|
{
|
|
LOG_FUNC_IN;
|
|
|
|
/* Mandatory - ESM message header */
|
|
msg->protocoldiscriminator = EPS_SESSION_MANAGEMENT_MESSAGE;
|
|
msg->epsbeareridentity = ebi;
|
|
msg->messagetype = ACTIVATE_DEDICATED_EPS_BEARER_CONTEXT_ACCEPT;
|
|
msg->proceduretransactionidentity = PROCEDURE_TRANSACTION_IDENTITY_UNASSIGNED;
|
|
/* Mandatory IEs */
|
|
/* Optional IEs */
|
|
msg->presencemask = 0;
|
|
|
|
LOG_TRACE(INFO, "ESM-SAP - Send Activate Dedicated EPS Bearer Context "
|
|
"Accept message (pti=%d, ebi=%d)",
|
|
msg->proceduretransactionidentity, msg->epsbeareridentity);
|
|
|
|
LOG_FUNC_RETURN(RETURNok);
|
|
}
|
|
|
|
/****************************************************************************
|
|
** **
|
|
** Name: esm_send_activate_dedicated_eps_bearer_context_reject() **
|
|
** **
|
|
** Description: Builds Activate Dedicated EPS Bearer Context Reject **
|
|
** message **
|
|
** **
|
|
** The activate dedicated EPS bearer context reject message **
|
|
** is sent by UE to the network to reject activation of a **
|
|
** dedicated EPS bearer context. **
|
|
** **
|
|
** Inputs: ebi: EPS bearer identity **
|
|
** esm_cause: ESM cause code **
|
|
** Others: None **
|
|
** **
|
|
** Outputs: msg: The ESM message to be sent **
|
|
** Return: RETURNok, RETURNerror **
|
|
** Others: None **
|
|
** **
|
|
***************************************************************************/
|
|
int esm_send_activate_dedicated_eps_bearer_context_reject(int ebi,
|
|
activate_dedicated_eps_bearer_context_reject_msg *msg, int esm_cause)
|
|
{
|
|
LOG_FUNC_IN;
|
|
|
|
/* Mandatory - ESM message header */
|
|
msg->protocoldiscriminator = EPS_SESSION_MANAGEMENT_MESSAGE;
|
|
msg->epsbeareridentity = ebi;
|
|
msg->messagetype = ACTIVATE_DEDICATED_EPS_BEARER_CONTEXT_REJECT;
|
|
msg->proceduretransactionidentity = PROCEDURE_TRANSACTION_IDENTITY_UNASSIGNED;
|
|
/* Mandatory - ESM cause code */
|
|
msg->esmcause = esm_cause;
|
|
/* Optional IEs */
|
|
msg->presencemask = 0;
|
|
|
|
LOG_TRACE(INFO, "ESM-SAP - Send Activate Dedicated EPS Bearer Context "
|
|
"Reject message (pti=%d, ebi=%d)",
|
|
msg->proceduretransactionidentity, msg->epsbeareridentity);
|
|
|
|
LOG_FUNC_RETURN(RETURNok);
|
|
}
|
|
|
|
/****************************************************************************
|
|
** **
|
|
** Name: esm_send_deactivate_eps_bearer_context_accept() **
|
|
** **
|
|
** Description: Builds Deactivate EPS Bearer Context Accept message **
|
|
** **
|
|
** The deactivate EPS bearer context accept message is sent **
|
|
** by the UE to acknowledge deactivation of an EPS bearer **
|
|
** context. **
|
|
** **
|
|
** Inputs: ebi: EPS bearer identity **
|
|
** Others: None **
|
|
** **
|
|
** Outputs: msg: The ESM message to be sent **
|
|
** Return: RETURNok, RETURNerror **
|
|
** Others: None **
|
|
** **
|
|
***************************************************************************/
|
|
int esm_send_deactivate_eps_bearer_context_accept(int ebi,
|
|
deactivate_eps_bearer_context_accept_msg *msg)
|
|
{
|
|
LOG_FUNC_IN;
|
|
|
|
/* Mandatory - ESM message header */
|
|
msg->protocoldiscriminator = EPS_SESSION_MANAGEMENT_MESSAGE;
|
|
msg->epsbeareridentity = ebi;
|
|
msg->messagetype = DEACTIVATE_EPS_BEARER_CONTEXT_ACCEPT;
|
|
msg->proceduretransactionidentity = PROCEDURE_TRANSACTION_IDENTITY_UNASSIGNED;
|
|
/* Mandatory IEs */
|
|
/* Optional IEs */
|
|
msg->presencemask = 0;
|
|
|
|
LOG_TRACE(INFO, "ESM-SAP - Send Deactivate EPS Bearer Context Accept"
|
|
" message (pti=%d, ebi=%d)",
|
|
msg->proceduretransactionidentity, msg->epsbeareridentity);
|
|
|
|
LOG_FUNC_RETURN(RETURNok);
|
|
}
|
|
|
|
|
|
/****************************************************************************/
|
|
/********************* L O C A L F U N C T I O N S *********************/
|
|
/****************************************************************************/
|
|
|