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/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2017 Software Radio Systems Limited
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*
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* \section LICENSE
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*
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* This file is part of srsLTE.
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*
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* srsLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsLTE 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 Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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/******************************************************************************
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* File: mbms-gw.h
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* Description: Top-level MBMS-GW class. Creates and links all
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* interfaces and helpers.
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*****************************************************************************/
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#ifndef MBMS_GW_H
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#define MBMS_GW_H
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#include <cstddef>
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#include "srslte/common/log.h"
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#include "srslte/common/logger_file.h"
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#include "srslte/common/log_filter.h"
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#include "srslte/common/buffer_pool.h"
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#include "srslte/common/threads.h"
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#include "srslte/asn1/gtpc.h"
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namespace srsepc{
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const uint16_t GTPU_RX_PORT = 2152;
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typedef struct {
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std::string name;
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std::string sgi_mb_if_addr;
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std::string m1u_multi_addr;
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} mbms_gw_args_t;
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struct pseudo_hdr
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{
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uint32_t src_addr;
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uint32_t dst_addr;
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uint8_t placeholder;
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uint8_t protocol;
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uint16_t udp_len;
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};
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class mbms_gw:
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public thread
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{
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public:
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static mbms_gw* get_instance(void);
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static void cleanup(void);
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int init(mbms_gw_args_t* args, srslte::log_filter *mbms_gw_log);
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void stop();
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void run_thread();
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private:
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/* Methods */
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mbms_gw();
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virtual ~mbms_gw();
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static mbms_gw *m_instance;
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srslte::error_t init_sgi_mb_if(mbms_gw_args_t *args);
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srslte::error_t init_m1_u(mbms_gw_args_t *args);
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void handle_sgi_md_pdu(srslte::byte_buffer_t *msg);
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uint16_t in_cksum(uint16_t *iphdr, int count);
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/* Members */
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bool m_running;
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srslte::byte_buffer_pool *m_pool;
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srslte::log_filter *m_mbms_gw_log;
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bool m_sgi_mb_up;
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int m_sgi_mb_if;
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bool m_m1u_up;
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int m_m1u;
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struct sockaddr_in m_m1u_multi_addr;
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};
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} // namespace srsepc
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#endif // SGW_H
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