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71 lines
2.4 KiB
C++
71 lines
2.4 KiB
C++
/**
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* Copyright 2013-2021 Software Radio Systems Limited
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*
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* This file is part of srsRAN.
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*
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* srsRAN is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsRAN is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#ifndef SRSRAN_ENB_GTPU_INTERFACES_H
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#define SRSRAN_ENB_GTPU_INTERFACES_H
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#include "srsran/adt/expected.h"
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#include "srsran/common/byte_buffer.h"
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namespace srsenb {
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struct gtpu_args_t {
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std::string gtp_bind_addr;
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std::string mme_addr;
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std::string embms_m1u_multiaddr;
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std::string embms_m1u_if_addr;
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bool embms_enable = false;
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uint32_t indirect_tunnel_timeout_msec = 0;
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};
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// GTPU interface for PDCP
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class gtpu_interface_pdcp
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{
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public:
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virtual void write_pdu(uint16_t rnti, uint32_t bearer_id, srsran::unique_byte_buffer_t pdu) = 0;
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};
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// GTPU interface for RRC
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class gtpu_interface_rrc
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{
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public:
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struct bearer_props {
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bool forward_from_teidin_present = false;
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bool flush_before_teidin_present = false;
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uint32_t forward_from_teidin = 0;
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uint32_t flush_before_teidin = 0;
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};
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virtual srsran::expected<uint32_t> add_bearer(uint16_t rnti,
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uint32_t eps_bearer_id,
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uint32_t addr,
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uint32_t teid_out,
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const bearer_props* props = nullptr) = 0;
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virtual void set_tunnel_status(uint32_t teidin, bool dl_active) = 0;
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virtual void rem_bearer(uint16_t rnti, uint32_t eps_bearer_id) = 0;
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virtual void mod_bearer_rnti(uint16_t old_rnti, uint16_t new_rnti) = 0;
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virtual void rem_user(uint16_t rnti) = 0;
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};
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} // namespace srsenb
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#endif // SRSRAN_ENB_GTPU_INTERFACES_H
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