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116 lines
3.4 KiB
C++
116 lines
3.4 KiB
C++
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2020 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 SRSUE_GW_H
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#define SRSUE_GW_H
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#include "gw_metrics.h"
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#include "srslte/common/buffer_pool.h"
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#include "srslte/common/common.h"
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#include "srslte/common/interfaces_common.h"
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#include "srslte/common/threads.h"
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#include "srslte/interfaces/ue_gw_interfaces.h"
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#include "srslte/srslog/srslog.h"
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#include "tft_packet_filter.h"
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#include <net/if.h>
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#include <netinet/in.h>
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namespace srsue {
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class stack_interface_gw;
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struct gw_args_t {
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struct log_args_t {
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std::string gw_level;
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int gw_hex_limit;
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} log;
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std::string netns;
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std::string tun_dev_name;
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std::string tun_dev_netmask;
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};
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class gw : public gw_interface_stack, public srslte::thread
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{
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public:
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gw();
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int init(const gw_args_t& args_, stack_interface_gw* stack);
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void stop();
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void get_metrics(gw_metrics_t& m, const uint32_t nof_tti);
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// PDCP interface
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void write_pdu(uint32_t lcid, srslte::unique_byte_buffer_t pdu);
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void write_pdu_mch(uint32_t lcid, srslte::unique_byte_buffer_t pdu);
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// NAS interface
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int setup_if_addr(uint32_t eps_bearer_id,
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uint32_t lcid,
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uint8_t pdn_type,
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uint32_t ip_addr,
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uint8_t* ipv6_if_addr,
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char* err_str);
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int apply_traffic_flow_template(const uint8_t& eps_bearer_id,
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const uint8_t& lcid,
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const LIBLTE_MME_TRAFFIC_FLOW_TEMPLATE_STRUCT* tft);
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void set_test_loop_mode(const test_loop_mode_state_t mode, const uint32_t ip_pdu_delay_ms);
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// RRC interface
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void add_mch_port(uint32_t lcid, uint32_t port);
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int update_lcid(uint32_t eps_bearer_id, uint32_t new_lcid);
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private:
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static const int GW_THREAD_PRIO = -1;
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stack_interface_gw* stack = nullptr;
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gw_args_t args = {};
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bool running = false;
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bool run_enable = false;
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int32_t netns_fd = 0;
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int32_t tun_fd = 0;
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struct ifreq ifr = {};
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int32_t sock = 0;
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bool if_up = false;
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uint32_t default_lcid = 0;
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srslog::basic_logger& logger;
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std::map<uint32_t, uint32_t> eps_lcid; // Mapping between eps bearer ID and LCID
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uint32_t current_ip_addr = 0;
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uint8_t current_if_id[8];
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uint32_t ul_tput_bytes = 0;
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uint32_t dl_tput_bytes = 0;
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std::chrono::high_resolution_clock::time_point metrics_tp; // stores time when last metrics have been taken
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void run_thread();
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int init_if(char* err_str);
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int setup_if_addr4(uint32_t ip_addr, char* err_str);
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int setup_if_addr6(uint8_t* ipv6_if_id, char* err_str);
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bool find_ipv6_addr(struct in6_addr* in6_out);
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void del_ipv6_addr(struct in6_addr* in6p);
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// MBSFN
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int mbsfn_sock_fd = 0; // Sink UDP socket file descriptor
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struct sockaddr_in mbsfn_sock_addr = {}; // Target address
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uint32_t mbsfn_ports[SRSLTE_N_MCH_LCIDS] = {}; // Target ports for MBSFN data
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// TFT
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tft_pdu_matcher tft_matcher;
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};
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} // namespace srsue
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#endif // SRSUE_GW_H
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