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95 lines
2.5 KiB
C++
95 lines
2.5 KiB
C++
/**
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* Copyright 2013-2023 Software Radio Systems Limited
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*
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* This file is part of srsRAN.
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*
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* srsRAN 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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* srsRAN 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 "srsran/asn1/gtpc.h"
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#include "srsran/common/buffer_pool.h"
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#include "srsran/common/threads.h"
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#include "srsran/srslog/srslog.h"
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#include "srsran/srsran.h"
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#include <cstddef>
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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_name;
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std::string sgi_mb_if_addr;
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std::string sgi_mb_if_mask;
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std::string m1u_multi_addr;
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std::string m1u_multi_if;
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int m1u_multi_ttl;
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} mbms_gw_args_t;
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struct pseudo_hdr {
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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 : public srsran::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);
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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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int init_sgi_mb_if(mbms_gw_args_t* args);
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int init_m1_u(mbms_gw_args_t* args);
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void handle_sgi_md_pdu(srsran::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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srslog::basic_logger& m_logger = srslog::fetch_basic_logger("MBMS");
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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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