mirror of https://github.com/PentHertz/srsLTE.git
90 lines
2.9 KiB
C++
90 lines
2.9 KiB
C++
/*
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* Copyright 2013-2020 Software Radio Systems Limited
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*
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* This file is part of srsLTE.
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*
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* srsLTE 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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* srsLTE 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 SRSLTE_PDCP_ENTITY_LTE_H
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#define SRSLTE_PDCP_ENTITY_LTE_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/log.h"
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#include "srslte/common/security.h"
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#include "srslte/common/threads.h"
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#include "srslte/interfaces/ue_interfaces.h"
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#include "srslte/upper/pdcp_entity_base.h"
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namespace srslte {
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/****************************************************************************
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* Structs and Defines
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* Ref: 3GPP TS 36.323 v10.1.0
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***************************************************************************/
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#define PDCP_CONTROL_MAC_I 0x00000000
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/****************************************************************************
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* LTE PDCP Entity
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* Class for LTE PDCP entities
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***************************************************************************/
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class pdcp_entity_lte final : public pdcp_entity_base
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{
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public:
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pdcp_entity_lte(srsue::rlc_interface_pdcp* rlc_,
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srsue::rrc_interface_pdcp* rrc_,
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srsue::gw_interface_pdcp* gw_,
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srslte::task_sched_handle task_sched_,
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srslte::log_ref log_,
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uint32_t lcid_,
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pdcp_config_t cfg_);
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~pdcp_entity_lte() override;
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void reset() override;
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void reestablish() override;
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// GW/RRC interface
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void write_sdu(unique_byte_buffer_t sdu) override;
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// RLC interface
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void write_pdu(unique_byte_buffer_t pdu) override;
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// Config helpers
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bool check_valid_config();
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void get_bearer_state(pdcp_lte_state_t* state) override;
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void set_bearer_state(const pdcp_lte_state_t& state) override;
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private:
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srsue::rlc_interface_pdcp* rlc = nullptr;
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srsue::rrc_interface_pdcp* rrc = nullptr;
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srsue::gw_interface_pdcp* gw = nullptr;
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// State variables, as defined in TS 36 323, section 7.1
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pdcp_lte_state_t st = {};
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uint32_t reordering_window = 0;
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uint32_t maximum_pdcp_sn = 0;
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void handle_srb_pdu(srslte::unique_byte_buffer_t pdu);
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void handle_um_drb_pdu(srslte::unique_byte_buffer_t pdu);
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void handle_am_drb_pdu(srslte::unique_byte_buffer_t pdu);
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};
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} // namespace srslte
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#endif // SRSLTE_PDCP_ENTITY_LTE_H
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