srsLTE/srsue/src/stack/upper/nas_5g_procedures.cc

101 lines
3.7 KiB
C++

/**
* Copyright 2013-2022 Software Radio Systems Limited
*
* This file is part of srsRAN.
*
* srsRAN is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* srsRAN 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 Affero General Public License for more details.
*
* A copy of the GNU Affero General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include "srsue/hdr/stack/upper/nas_5g_procedures.h"
#include "srsran/common/standard_streams.h"
#include <fstream>
#include <iomanip>
#include <iostream>
#include <unistd.h>
using namespace srsran;
namespace srsue {
nas_5g::registration_procedure::registration_procedure(nas_5g_interface_procedures* parent_nas_) :
parent_nas(parent_nas_)
{}
srsran::proc_outcome_t nas_5g::registration_procedure::init()
{
parent_nas->send_registration_request();
return srsran::proc_outcome_t::yield;
}
srsran::proc_outcome_t nas_5g::registration_procedure::step()
{
return srsran::proc_outcome_t::success;
}
// PDU Sessions Establishment Procedure
nas_5g::pdu_session_establishment_procedure::pdu_session_establishment_procedure(
nas_5g_interface_procedures* parent_nas_,
srslog::basic_logger& logger_) :
logger(logger_), parent_nas(parent_nas_)
{}
srsran::proc_outcome_t nas_5g::pdu_session_establishment_procedure::init(const uint16_t pdu_session_id_,
const pdu_session_cfg_t& pdu_session_cfg)
{
// Get PDU transaction identity
transaction_identity = parent_nas->allocate_next_proc_trans_id();
pdu_session_id = pdu_session_id_;
parent_nas->send_pdu_session_establishment_request(transaction_identity, pdu_session_id, pdu_session_cfg);
return srsran::proc_outcome_t::yield;
}
srsran::proc_outcome_t nas_5g::pdu_session_establishment_procedure::react(
const srsran::nas_5g::pdu_session_establishment_accept_t& pdu_session_est_accept)
{
// TODO check the pdu session values
if (pdu_session_est_accept.dnn_present == false) {
logger.warning("Expected DNN in PDU session establishment accept");
return proc_outcome_t::error;
}
if (pdu_session_est_accept.pdu_address_present == false) {
logger.warning("Expected PDU Address in PDU session establishment accept");
return proc_outcome_t::error;
}
if (parent_nas->add_pdu_session(pdu_session_id,
pdu_session_est_accept.selected_pdu_session_type.pdu_session_type_value,
pdu_session_est_accept.pdu_address) != SRSRAN_SUCCESS) {
logger.warning("Adding PDU session failed\n");
return srsran::proc_outcome_t::error;
}
return srsran::proc_outcome_t::success;
}
srsran::proc_outcome_t nas_5g::pdu_session_establishment_procedure::react(
const srsran::nas_5g::pdu_session_establishment_reject_t& session_est_reject)
{
logger.error("PDU Session Establishment Reject with cause: %s",
session_est_reject.cause_5gsm.cause_value.to_string());
srsran::console("PDU Session Establishment Reject with cause: %s\n",
session_est_reject.cause_5gsm.cause_value.to_string());
return srsran::proc_outcome_t::error;
}
srsran::proc_outcome_t nas_5g::pdu_session_establishment_procedure::step()
{
return srsran::proc_outcome_t::success;
}
} // namespace srsue