mirror of https://github.com/PentHertz/srsLTE.git
83 lines
2.2 KiB
C++
83 lines
2.2 KiB
C++
/**
|
|
*
|
|
* \section COPYRIGHT
|
|
*
|
|
* Copyright 2013-2021 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_MME_GTPC_H
|
|
#define SRSEPC_MME_GTPC_H
|
|
|
|
#include "nas.h"
|
|
#include "srsran/asn1/gtpc.h"
|
|
#include "srsran/common/buffer_pool.h"
|
|
#include <sys/socket.h>
|
|
#include <sys/un.h>
|
|
|
|
namespace srsepc {
|
|
|
|
class spgw;
|
|
class s1ap;
|
|
|
|
class mme_gtpc : public gtpc_interface_nas
|
|
{
|
|
public:
|
|
typedef struct gtpc_ctx {
|
|
srsran::gtp_fteid_t mme_ctr_fteid;
|
|
srsran::gtp_fteid_t sgw_ctr_fteid;
|
|
} gtpc_ctx_t;
|
|
|
|
virtual ~mme_gtpc() = default;
|
|
|
|
static mme_gtpc* get_instance();
|
|
|
|
bool init();
|
|
bool send_s11_pdu(const srsran::gtpc_pdu& pdu);
|
|
void handle_s11_pdu(srsran::byte_buffer_t* msg);
|
|
|
|
virtual bool send_create_session_request(uint64_t imsi);
|
|
bool handle_create_session_response(srsran::gtpc_pdu* cs_resp_pdu);
|
|
virtual bool send_modify_bearer_request(uint64_t imsi, uint16_t erab_to_modify, srsran::gtp_fteid_t* enb_fteid);
|
|
void handle_modify_bearer_response(srsran::gtpc_pdu* mb_resp_pdu);
|
|
void send_release_access_bearers_request(uint64_t imsi);
|
|
virtual bool send_delete_session_request(uint64_t imsi);
|
|
bool handle_downlink_data_notification(srsran::gtpc_pdu* dl_not_pdu);
|
|
void send_downlink_data_notification_acknowledge(uint64_t imsi, enum srsran::gtpc_cause_value cause);
|
|
virtual bool send_downlink_data_notification_failure_indication(uint64_t imsi, enum srsran::gtpc_cause_value cause);
|
|
|
|
int get_s11();
|
|
|
|
private:
|
|
mme_gtpc() = default;
|
|
|
|
srslog::basic_logger& m_logger = srslog::fetch_basic_logger("MME GTPC");
|
|
s1ap* m_s1ap;
|
|
|
|
uint32_t m_next_ctrl_teid;
|
|
std::map<uint32_t, uint64_t> m_mme_ctr_teid_to_imsi;
|
|
std::map<uint64_t, struct gtpc_ctx> m_imsi_to_gtpc_ctx;
|
|
|
|
int m_s11;
|
|
struct sockaddr_un m_mme_addr, m_spgw_addr;
|
|
|
|
bool init_s11();
|
|
uint32_t get_new_ctrl_teid();
|
|
};
|
|
|
|
inline uint32_t mme_gtpc::get_new_ctrl_teid()
|
|
{
|
|
return m_next_ctrl_teid++;
|
|
}
|
|
|
|
inline int mme_gtpc::get_s11()
|
|
{
|
|
return m_s11;
|
|
}
|
|
|
|
} // namespace srsepc
|
|
#endif // SRSEPC_MME_GTPC_H
|