mirror of https://github.com/PentHertz/srsLTE.git
87 lines
2.3 KiB
C++
87 lines
2.3 KiB
C++
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2021 Software Radio Systems Limited
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*
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* By using this file, you agree to the terms and conditions set
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* forth in the LICENSE file which can be found at the top level of
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* the distribution.
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*
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*/
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#ifndef SRSEPC_GTPU_H
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#define SRSEPC_GTPU_H
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#include "srsepc/hdr/spgw/spgw.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/standard_streams.h"
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#include "srsran/interfaces/epc_interfaces.h"
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#include "srsran/srslog/srslog.h"
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#include <cstddef>
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#include <queue>
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namespace srsepc {
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class spgw::gtpu : public gtpu_interface_gtpc
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{
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public:
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gtpu();
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virtual ~gtpu();
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int init(spgw_args_t* args, spgw* spgw, gtpc_interface_gtpu* gtpc);
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void stop();
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int init_sgi(spgw_args_t* args);
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int init_s1u(spgw_args_t* args);
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int get_sgi();
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int get_s1u();
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void handle_sgi_pdu(srsran::unique_byte_buffer_t msg);
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void handle_s1u_pdu(srsran::byte_buffer_t* msg);
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void send_s1u_pdu(srsran::gtp_fteid_t enb_fteid, srsran::byte_buffer_t* msg);
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virtual in_addr_t get_s1u_addr();
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virtual bool modify_gtpu_tunnel(in_addr_t ue_ipv4, srsran::gtp_fteid_t dw_user_fteid, uint32_t up_ctr_fteid);
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virtual bool delete_gtpu_tunnel(in_addr_t ue_ipv4);
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virtual bool delete_gtpc_tunnel(in_addr_t ue_ipv4);
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virtual void send_all_queued_packets(srsran::gtp_fteid_t dw_user_fteid,
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std::queue<srsran::unique_byte_buffer_t>& pkt_queue);
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spgw* m_spgw;
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gtpc_interface_gtpu* m_gtpc;
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bool m_sgi_up;
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int m_sgi;
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bool m_s1u_up;
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int m_s1u;
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sockaddr_in m_s1u_addr;
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std::map<in_addr_t, srsran::gtp_fteid_t> m_ip_to_usr_teid; // Map IP to User-plane TEID for downlink traffic
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std::map<in_addr_t, uint32_t> m_ip_to_ctr_teid; // IP to control TEID map. Important to check if
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// UE is attached without an active user-plane
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// for downlink notifications.
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srslog::basic_logger& m_logger = srslog::fetch_basic_logger("GTPU");
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};
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inline int spgw::gtpu::get_sgi()
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{
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return m_sgi;
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}
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inline int spgw::gtpu::get_s1u()
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{
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return m_s1u;
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}
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inline in_addr_t spgw::gtpu::get_s1u_addr()
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{
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return m_s1u_addr.sin_addr.s_addr;
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}
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} // namespace srsepc
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#endif // SRSEPC_GTPU_H
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