mirror of https://github.com/pvnis/srsRAN_4G.git
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
98 lines
2.8 KiB
C++
98 lines
2.8 KiB
C++
/*
|
|
* Copyright 2013-2019 Software Radio Systems Limited
|
|
*
|
|
* This file is part of srsLTE.
|
|
*
|
|
* srsLTE is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as
|
|
* published by the Free Software Foundation, either version 3 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* srsLTE is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* A copy of the GNU Affero General Public License can be found in
|
|
* the LICENSE file in the top-level directory of this distribution
|
|
* and at http://www.gnu.org/licenses/.
|
|
*
|
|
*/
|
|
|
|
#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/interfaces/epc_interfaces.h"
|
|
#include <cstddef>
|
|
#include <queue>
|
|
|
|
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_filter* 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::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<srslte::byte_buffer_t*>& 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<in_addr_t, srslte::gtp_fteid_t> m_ip_to_usr_teid; // Map IP to User-plane TEID for downlink traffic
|
|
std::map<in_addr_t, uint32_t> 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.
|
|
|
|
srslte::log_filter* m_gtpu_log;
|
|
|
|
private:
|
|
srslte::byte_buffer_pool* m_pool;
|
|
};
|
|
|
|
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
|