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openairinterface5g/openair-cn/NAS/nas_itti_messaging.c
T
winckel e299520447 Fixed some warnings. 
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4996 818b1a75-f10b-46b9-bf7c-635c3b92a50f
2014-01-31 10:52:33 +00:00

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/*******************************************************************************
Eurecom OpenAirInterface
Copyright(c) 1999 - 2013 Eurecom
This program is free software; you can redistribute it and/or modify it
under the terms and conditions of the GNU General Public License,
version 2, as published by the Free Software Foundation.
This program is distributed in the hope 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
this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
The full GNU General Public License is included in this distribution in
the file called "COPYING".
Contact Information
Openair Admin: openair_admin@eurecom.fr
Openair Tech : openair_tech@eurecom.fr
Forums : http://forums.eurecom.fr/openairinterface
Address : EURECOM, Campus SophiaTech, 450 Route des Chappes
06410 Biot FRANCE
*******************************************************************************/
#include <string.h>
#include "intertask_interface.h"
#include "nas_itti_messaging.h"
#if ((defined(EPC_BUILD) && defined(NAS_MME)) || (defined(UE_BUILD) && defined(NAS_UE)))
# if (defined(EPC_BUILD) && defined(NAS_MME))
# define TASK_ORIGIN TASK_NAS_MME
# else
# define TASK_ORIGIN TASK_NAS_UE
# endif
#endif
#if ((defined(EPC_BUILD) && defined(NAS_MME)) || (defined(ENABLE_NAS_UE_LOGGING) && defined(UE_BUILD) && defined(NAS_UE)))
static const UInt8_t emm_message_ids[] =
{
ATTACH_REQUEST,
ATTACH_ACCEPT,
ATTACH_COMPLETE,
ATTACH_REJECT,
DETACH_REQUEST,
DETACH_ACCEPT,
TRACKING_AREA_UPDATE_REQUEST,
TRACKING_AREA_UPDATE_ACCEPT,
TRACKING_AREA_UPDATE_COMPLETE,
TRACKING_AREA_UPDATE_REJECT,
EXTENDED_SERVICE_REQUEST,
SERVICE_REQUEST,
SERVICE_REJECT,
GUTI_REALLOCATION_COMMAND,
GUTI_REALLOCATION_COMPLETE,
AUTHENTICATION_REQUEST,
AUTHENTICATION_RESPONSE,
AUTHENTICATION_REJECT,
AUTHENTICATION_FAILURE,
IDENTITY_REQUEST,
IDENTITY_RESPONSE,
SECURITY_MODE_COMMAND,
SECURITY_MODE_COMPLETE,
SECURITY_MODE_REJECT,
EMM_STATUS,
EMM_INFORMATION,
DOWNLINK_NAS_TRANSPORT,
UPLINK_NAS_TRANSPORT,
CS_SERVICE_NOTIFICATION,
};
static const UInt8_t esm_message_ids[] =
{
ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST,
ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_ACCEPT,
ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REJECT,
ACTIVATE_DEDICATED_EPS_BEARER_CONTEXT_REQUEST,
ACTIVATE_DEDICATED_EPS_BEARER_CONTEXT_ACCEPT,
ACTIVATE_DEDICATED_EPS_BEARER_CONTEXT_REJECT,
MODIFY_EPS_BEARER_CONTEXT_REQUEST,
MODIFY_EPS_BEARER_CONTEXT_ACCEPT,
MODIFY_EPS_BEARER_CONTEXT_REJECT,
DEACTIVATE_EPS_BEARER_CONTEXT_REQUEST,
DEACTIVATE_EPS_BEARER_CONTEXT_ACCEPT,
PDN_CONNECTIVITY_REQUEST,
PDN_CONNECTIVITY_REJECT,
PDN_DISCONNECT_REQUEST,
PDN_DISCONNECT_REJECT,
BEARER_RESOURCE_ALLOCATION_REQUEST,
BEARER_RESOURCE_ALLOCATION_REJECT,
BEARER_RESOURCE_MODIFICATION_REQUEST,
BEARER_RESOURCE_MODIFICATION_REJECT,
ESM_INFORMATION_REQUEST,
ESM_INFORMATION_RESPONSE,
ESM_STATUS,
};
static int _nas_find_message_index(const UInt8_t message_id, const UInt8_t *message_ids, const int ids_number)
{
int i;
for(i = 0; i < ids_number; i ++)
{
if (message_id == message_ids[i])
{
return (2 + i);
}
}
return (1);
}
int nas_itti_plain_msg(const char *buffer, const nas_message_t *msg, const int length, const int down_link)
{
MessageDef *message_p;
int data_length = length < NAS_DATA_LENGHT_MAX ? length : NAS_DATA_LENGHT_MAX;
int message_type = -1;
MessagesIds messageId_raw = -1;
MessagesIds messageId_plain = -1;
/* Define message ids */
if (msg->header.protocol_discriminator == EPS_MOBILITY_MANAGEMENT_MESSAGE)
{
message_type = 0;
messageId_raw = down_link ? NAS_DL_EMM_RAW_MSG : NAS_UL_EMM_RAW_MSG;
messageId_plain = down_link ? NAS_DL_EMM_PLAIN_MSG : NAS_UL_EMM_PLAIN_MSG;
}
else
{
if (msg->header.protocol_discriminator == EPS_SESSION_MANAGEMENT_MESSAGE)
{
message_type = 1;
messageId_raw = down_link ? NAS_DL_ESM_RAW_MSG : NAS_UL_ESM_RAW_MSG;
messageId_plain = down_link ? NAS_DL_ESM_PLAIN_MSG : NAS_UL_ESM_PLAIN_MSG;
}
}
if (message_type >= 0)
{
/* Create and send the RAW message */
message_p = itti_alloc_new_message(TASK_ORIGIN, messageId_raw);
NAS_DL_EMM_RAW_MSG(message_p).lenght = length;
memset ((void *) &(NAS_DL_EMM_RAW_MSG(message_p).data), 0, NAS_DATA_LENGHT_MAX);
memcpy ((void *) &(NAS_DL_EMM_RAW_MSG(message_p).data), buffer, data_length);
itti_send_msg_to_task(TASK_UNKNOWN, INSTANCE_DEFAULT, message_p);
/* Create and send the plain message */
if (message_type == 0)
{
message_p = itti_alloc_new_message(TASK_ORIGIN, messageId_plain);
NAS_DL_EMM_PLAIN_MSG(message_p).present = _nas_find_message_index(msg->plain.emm.header.message_type, emm_message_ids, sizeof(emm_message_ids) / sizeof(emm_message_ids[0]));
memcpy ((void *) &(NAS_DL_EMM_PLAIN_MSG(message_p).choice), &msg->plain.emm, sizeof (EMM_msg));
}
else {
message_p = itti_alloc_new_message(TASK_ORIGIN, messageId_plain);
NAS_DL_ESM_PLAIN_MSG(message_p).present = _nas_find_message_index(msg->plain.esm.header.message_type, esm_message_ids, sizeof(esm_message_ids) / sizeof(esm_message_ids[0]));
memcpy ((void *) &(NAS_DL_ESM_PLAIN_MSG(message_p).choice), &msg->plain.esm, sizeof (ESM_msg));
}
return itti_send_msg_to_task(TASK_UNKNOWN, INSTANCE_DEFAULT, message_p);
}
return EXIT_FAILURE;
}
int nas_itti_protected_msg(const char *buffer, const nas_message_t *msg, const int length, const int down_link)
{
MessageDef *message_p = NULL;
if (msg->header.protocol_discriminator == EPS_MOBILITY_MANAGEMENT_MESSAGE)
{
message_p = itti_alloc_new_message(TASK_ORIGIN, down_link ? NAS_DL_EMM_PROTECTED_MSG : NAS_UL_EMM_PROTECTED_MSG);
memcpy ((void *) &(NAS_DL_EMM_PROTECTED_MSG(message_p).header), &msg->header, sizeof (nas_message_security_header_t));
NAS_DL_EMM_PROTECTED_MSG(message_p).present = _nas_find_message_index(msg->security_protected.plain.emm.header.message_type, emm_message_ids, sizeof(emm_message_ids) / sizeof(emm_message_ids[0]));
memcpy ((void *) &(NAS_DL_EMM_PROTECTED_MSG(message_p).choice), &msg->security_protected.plain.emm, sizeof (EMM_msg));
}
else {
if (msg->header.protocol_discriminator == EPS_SESSION_MANAGEMENT_MESSAGE)
{
message_p = itti_alloc_new_message(TASK_ORIGIN, down_link ? NAS_DL_ESM_PROTECTED_MSG : NAS_UL_ESM_PROTECTED_MSG);
memcpy ((void *) &(NAS_DL_ESM_PROTECTED_MSG(message_p).header), &msg->header, sizeof (nas_message_security_header_t));
NAS_DL_ESM_PROTECTED_MSG(message_p).present = _nas_find_message_index(msg->security_protected.plain.esm.header.message_type, esm_message_ids, sizeof(esm_message_ids) / sizeof(esm_message_ids[0]));
memcpy ((void *) &(NAS_DL_ESM_PROTECTED_MSG(message_p).choice), &msg->security_protected.plain.esm, sizeof (ESM_msg));
}
}
if (message_p != NULL) {
return itti_send_msg_to_task(TASK_UNKNOWN, INSTANCE_DEFAULT, message_p);
}
return EXIT_FAILURE;
}
#endif
#if defined(EPC_BUILD) && defined(NAS_MME)
int nas_itti_dl_data_req(const uint32_t ue_id, void *const data,
const uint32_t length)
{
MessageDef *message_p;
message_p = itti_alloc_new_message(TASK_NAS_MME, NAS_DOWNLINK_DATA_REQ);
NAS_DL_DATA_REQ(message_p).UEid = ue_id;
NAS_DL_DATA_REQ(message_p).nasMsg.data = data;
NAS_DL_DATA_REQ(message_p).nasMsg.length = length;
return itti_send_msg_to_task(TASK_S1AP, INSTANCE_DEFAULT, message_p);
}
#endif
#if defined(UE_BUILD) && defined(NAS_UE)
extern unsigned char NB_eNB_INST;
int nas_itti_cell_info_req(const plmn_t plmnID, const Byte_t rat)
{
MessageDef *message_p;
message_p = itti_alloc_new_message(TASK_NAS_UE, NAS_CELL_SELECTION_REQ);
NAS_CELL_SELECTION_REQ(message_p).plmnID = plmnID;
NAS_CELL_SELECTION_REQ(message_p).rat = rat;
return itti_send_msg_to_task(TASK_RRC_UE, NB_eNB_INST + 0 /* TODO to be virtualized */, message_p);
}
int nas_itti_nas_establish_req(as_cause_t cause, as_call_type_t type, as_stmsi_t s_tmsi, plmn_t plmnID, Byte_t *data, UInt32_t length)
{
MessageDef *message_p;
message_p = itti_alloc_new_message(TASK_NAS_UE, NAS_CONN_ESTABLI_REQ);
NAS_CONN_ESTABLI_REQ(message_p).cause = cause;
NAS_CONN_ESTABLI_REQ(message_p).type = type;
NAS_CONN_ESTABLI_REQ(message_p).s_tmsi = s_tmsi;
NAS_CONN_ESTABLI_REQ(message_p).plmnID = plmnID;
NAS_CONN_ESTABLI_REQ(message_p).initialNasMsg.data = data;
NAS_CONN_ESTABLI_REQ(message_p).initialNasMsg.length = length;
return itti_send_msg_to_task(TASK_RRC_UE, NB_eNB_INST + 0 /* TODO to be virtualized */, message_p);
}
int nas_itti_ul_data_req(const uint32_t ue_id, void *const data, const uint32_t length)
{
MessageDef *message_p;
message_p = itti_alloc_new_message(TASK_NAS_UE, NAS_UPLINK_DATA_REQ);
NAS_UPLINK_DATA_REQ(message_p).UEid = ue_id;
NAS_UPLINK_DATA_REQ(message_p).nasMsg.data = data;
NAS_UPLINK_DATA_REQ(message_p).nasMsg.length = length;
return itti_send_msg_to_task(TASK_RRC_UE, NB_eNB_INST + 0 /* TODO to be virtualized */, message_p);
}
int nas_itti_rab_establish_rsp(const as_stmsi_t s_tmsi, const as_rab_id_t rabID, const nas_error_code_t errCode)
{
MessageDef *message_p;
message_p = itti_alloc_new_message(TASK_NAS_UE, NAS_RAB_ESTABLI_RSP);
NAS_RAB_ESTABLI_RSP(message_p).s_tmsi = s_tmsi;
NAS_RAB_ESTABLI_RSP(message_p).rabID = rabID;
NAS_RAB_ESTABLI_RSP(message_p).errCode = errCode;
return itti_send_msg_to_task(TASK_RRC_UE, NB_eNB_INST + 0 /* TODO to be virtualized */, message_p);
}
#endif
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