/** * * \section COPYRIGHT * * Copyright 2013-2020 Software Radio Systems Limited * * By using this file, you agree to the terms and conditions set * forth in the LICENSE file which can be found at the top level of * the distribution. * */ #ifndef SRSEPC_GTPU_H #define SRSEPC_GTPU_H #include "srsepc/hdr/spgw/spgw.h" #include "srslte/asn1/gtpc.h" #include "srslte/common/buffer_pool.h" #include "srslte/common/logmap.h" #include "srslte/interfaces/epc_interfaces.h" #include "srslte/srslog/srslog.h" #include #include namespace srsepc { class spgw::gtpu : public gtpu_interface_gtpc { public: gtpu(); virtual ~gtpu(); int init(spgw_args_t* args, spgw* spgw, gtpc_interface_gtpu* gtpc, srslte::log_ref gtpu_log); void stop(); int init_sgi(spgw_args_t* args); int init_s1u(spgw_args_t* args); int get_sgi(); int get_s1u(); void handle_sgi_pdu(srslte::unique_byte_buffer_t msg); void handle_s1u_pdu(srslte::byte_buffer_t* msg); void send_s1u_pdu(srslte::gtp_fteid_t enb_fteid, srslte::byte_buffer_t* msg); virtual in_addr_t get_s1u_addr(); virtual bool modify_gtpu_tunnel(in_addr_t ue_ipv4, srslte::gtp_fteid_t dw_user_fteid, uint32_t up_ctr_fteid); virtual bool delete_gtpu_tunnel(in_addr_t ue_ipv4); virtual bool delete_gtpc_tunnel(in_addr_t ue_ipv4); virtual void send_all_queued_packets(srslte::gtp_fteid_t dw_user_fteid, std::queue& pkt_queue); spgw* m_spgw; gtpc_interface_gtpu* m_gtpc; bool m_sgi_up; int m_sgi; bool m_s1u_up; int m_s1u; sockaddr_in m_s1u_addr; std::map m_ip_to_usr_teid; // Map IP to User-plane TEID for downlink traffic std::map m_ip_to_ctr_teid; // IP to control TEID map. Important to check if // UE is attached without an active user-plane // for downlink notifications. srslog::basic_logger& m_logger = srslog::fetch_basic_logger("GTPU"); //:TODO: remove this once srslte common code loggers have been upgraded. srslte::log_ref m_gtpu_log; }; inline int spgw::gtpu::get_sgi() { return m_sgi; } inline int spgw::gtpu::get_s1u() { return m_s1u; } inline in_addr_t spgw::gtpu::get_s1u_addr() { return m_s1u_addr.sin_addr.s_addr; } } // namespace srsepc #endif // SRSEPC_GTPU_H