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C++

/**
*
* \section COPYRIGHT
*
* Copyright 2013-2017 Software Radio Systems Limited
*
* \section LICENSE
*
* This file is part of srsLTE.
*
* srsLTE 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.
*
* srsLTE 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/.
*
*/
/******************************************************************************
* File: spgw.h
* Description: Top-level SP-GW class. Creates and links all
* interfaces and helpers.
*****************************************************************************/
#ifndef SPGW_H
#define SPGW_H
#include <cstddef>
#include "srslte/common/log.h"
#include "srslte/common/logger_file.h"
#include "srslte/common/log_filter.h"
#include "srslte/common/buffer_pool.h"
#include "srslte/common/threads.h"
#include "srslte/asn1/gtpc.h"
namespace srsepc{
const uint16_t GTPU_RX_PORT = 2152;
typedef struct {
std::string gtpu_bind_addr;
std::string sgi_if_addr;
} spgw_args_t;
typedef struct {
uint64_t imsi;
in_addr_t ue_ipv4;
struct gtpc_f_teid_ie uplink_ctrl;
struct gtpc_f_teid_ie uplink_user;
struct gtpc_f_teid_ie downlink_ctrl;
struct gtpc_f_teid_ie downlink_user;
} spgw_ue_ctxr;
class spgw:
public thread
{
public:
static spgw* get_instance(void);
static void cleanup(void);
int init(spgw_args_t* args, srslte::log_filter *spgw_log);
void stop();
void run_thread();
void handle_create_session_request(struct srslte::gtpc_create_session_request *cs_req, struct srslte::gtpc_create_session_response *cs_resp);
private:
spgw();
virtual ~spgw();
static spgw *m_instance;
srslte::error_t init_sgi_if(spgw_args_t *args);
srslte::error_t init_s1u(spgw_args_t *args);
bool m_running;
srslte::byte_buffer_pool *m_pool;
bool m_sgi_up;
int m_sgi_if;
int m_sgi_sock;
bool m_s1u_up;
int m_s1u;
/*Logs*/
srslte::log_filter *m_spgw_log;
};
} // namespace srsepc
#endif // SGW_H