163 lines
5.5 KiB
C
163 lines
5.5 KiB
C
/*******************************************************************************
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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, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
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*******************************************************************************/
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/*
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play_scenario_s1ap.c
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-------------------
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AUTHOR : Lionel GAUTHIER
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COMPANY : EURECOM
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EMAIL : Lionel.Gauthier@eurecom.fr
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*/
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include "tree.h"
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#include "queue.h"
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#include "intertask_interface.h"
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#include "messages_types.h"
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#include "platform_types.h"
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#include "s1ap_common.h"
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#include "s1ap_eNB_defs.h"
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#include "s1ap_eNB_default_values.h"
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#include "s1ap_eNB_management_procedures.h"
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#include "s1ap_eNB.h"
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#include "play_scenario.h"
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#include "msc.h"
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#include "assertions.h"
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#include "conversions.h"
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//------------------------------------------------------------------------------
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extern void s1ap_eNB_handle_sctp_association_resp(instance_t instance, sctp_new_association_resp_t *sctp_new_association_resp);
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extern void s1ap_eNB_handle_register_eNB(instance_t instance, s1ap_register_enb_req_t *s1ap_register_eNB);
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//------------------------------------------------------------------------------
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void et_s1ap_eNB_handle_sctp_data_ind(sctp_data_ind_t *sctp_data_ind)
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{
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int result = 0;
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et_event_t event;
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DevAssert(sctp_data_ind != NULL);
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memset((void*)&event, 0, sizeof(event));
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event.code = ET_EVENT_RX_S1AP;
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event.u.s1ap_data_ind.sctp_datahdr.tsn = 0;
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event.u.s1ap_data_ind.sctp_datahdr.stream = sctp_data_ind->stream;
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event.u.s1ap_data_ind.sctp_datahdr.ssn = 0;
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event.u.s1ap_data_ind.sctp_datahdr.ppid = 18; // find constant
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event.u.s1ap_data_ind.sctp_datahdr.payload.binary_stream_pos = 0;
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event.u.s1ap_data_ind.sctp_datahdr.payload.binary_stream_allocated_size = sctp_data_ind->buffer_length;
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event.u.s1ap_data_ind.sctp_datahdr.payload.binary_stream = NULL;
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if ((sctp_data_ind->buffer_length > 0) && (NULL != sctp_data_ind->buffer)) {
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event.u.s1ap_data_ind.sctp_datahdr.payload.binary_stream = calloc(1, sctp_data_ind->buffer_length);
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memcpy(event.u.s1ap_data_ind.sctp_datahdr.payload.binary_stream,
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sctp_data_ind->buffer,
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sctp_data_ind->buffer_length);
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if (et_s1ap_decode_pdu(
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&event.u.s1ap_data_ind.sctp_datahdr.payload.pdu,
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&event.u.s1ap_data_ind.sctp_datahdr.payload.message,
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event.u.s1ap_data_ind.sctp_datahdr.payload.binary_stream,
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event.u.s1ap_data_ind.sctp_datahdr.payload.binary_stream_allocated_size) < 0) {
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AssertFatal (0, "ERROR %s() Cannot decode RX S1AP message!\n", __FUNCTION__);
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}
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}
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result = itti_free(TASK_UNKNOWN, sctp_data_ind->buffer);
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AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
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et_scenario_fsm_notify_event(event);
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}
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//------------------------------------------------------------------------------
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void *et_s1ap_eNB_task(void *arg)
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{
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MessageDef *received_msg = NULL;
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int result;
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S1AP_DEBUG("Starting S1AP layer\n");
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s1ap_eNB_prepare_internal_data();
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itti_mark_task_ready(TASK_S1AP);
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MSC_START_USE();
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while (1) {
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itti_receive_msg(TASK_S1AP, &received_msg);
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switch (ITTI_MSG_ID(received_msg)) {
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case TERMINATE_MESSAGE:
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itti_exit_task();
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break;
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case S1AP_REGISTER_ENB_REQ: {
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/* Register a new eNB.
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* in Virtual mode eNBs will be distinguished using the mod_id/
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* Each eNB has to send an S1AP_REGISTER_ENB message with its
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* own parameters.
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*/
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s1ap_eNB_handle_register_eNB(ITTI_MESSAGE_GET_INSTANCE(received_msg),
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&S1AP_REGISTER_ENB_REQ(received_msg));
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}
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break;
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case SCTP_NEW_ASSOCIATION_RESP: {
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s1ap_eNB_handle_sctp_association_resp(ITTI_MESSAGE_GET_INSTANCE(received_msg),
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&received_msg->ittiMsg.sctp_new_association_resp);
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}
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break;
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case SCTP_DATA_IND: {
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et_s1ap_eNB_handle_sctp_data_ind(&received_msg->ittiMsg.sctp_data_ind);
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}
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break;
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default:
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S1AP_ERROR("Received unhandled message: %d:%s\n",
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ITTI_MSG_ID(received_msg), ITTI_MSG_NAME(received_msg));
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break;
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}
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result = itti_free (ITTI_MSG_ORIGIN_ID(received_msg), received_msg);
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AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
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received_msg = NULL;
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}
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return NULL;
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}
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