srsRAN_4G/srsepc/hdr/mme/s1ap_mngmt_proc.h

/*
 * 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_S1AP_MNGMT_PROC_H
#define SRSEPC_S1AP_MNGMT_PROC_H

#include "s1ap_common.h"
#include "srslte/asn1/liblte_s1ap.h"
#include "srslte/common/common.h"
#include "srslte/common/log_filter.h"

namespace srsepc {

class s1ap;

class s1ap_mngmt_proc
{
public:
  static s1ap_mngmt_proc* m_instance;

  static s1ap_mngmt_proc* get_instance(void);
  static void             cleanup(void);
  void                    init(void);

  bool handle_s1_setup_request(LIBLTE_S1AP_MESSAGE_S1SETUPREQUEST_STRUCT* msg,
                               sctp_sndrcvinfo*                           enb_sri,
                               srslte::byte_buffer_t*                     reply_buffer,
                               bool*                                      reply_flag);

  // Packing/unpacking helper functions
  bool unpack_s1_setup_request(LIBLTE_S1AP_MESSAGE_S1SETUPREQUEST_STRUCT* msg, enb_ctx_t* enb_ctx);
  bool pack_s1_setup_failure(LIBLTE_S1AP_CAUSEMISC_ENUM cause, srslte::byte_buffer_t* msg);
  bool pack_s1_setup_response(s1ap_args_t s1ap_args, srslte::byte_buffer_t* msg);

private:
  s1ap_mngmt_proc();
  virtual ~s1ap_mngmt_proc();

  s1ap*               m_s1ap;
  srslte::log_filter* m_s1ap_log;

  int         m_s1mme;
  s1ap_args_t m_s1ap_args;
};

} // namespace srsepc

#endif // SRSEPC_S1AP_MNGMT_PROC_H