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98 lines
3.3 KiB
C++
98 lines
3.3 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_handler_interface* task_executor_,
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srslte::log_ref log_);
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~pdcp_entity_lte();
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void init(uint32_t lcid_, pdcp_config_t cfg_);
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void reset();
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void reestablish();
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// GW/RRC interface
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void write_sdu(unique_byte_buffer_t sdu, bool blocking);
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void get_bearer_status(uint16_t* dlsn, uint16_t* dlhfn, uint16_t* ulsn, uint16_t* ulhfn);
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// RLC interface
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void write_pdu(unique_byte_buffer_t pdu);
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// State variable setters (should be used only for testing)
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void set_tx_count(uint32_t tx_count_) { tx_count = tx_count_; }
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void set_rx_hfn(uint32_t rx_hfn_) { rx_hfn = rx_hfn_; }
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void set_next_pdcp_rx_sn(uint32_t next_pdcp_rx_sn_) { next_pdcp_rx_sn = next_pdcp_rx_sn_; }
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void set_last_submitted_pdcp_rx_sn(uint32_t last_submitted_pdcp_rx_sn_)
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{
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last_submitted_pdcp_rx_sn = last_submitted_pdcp_rx_sn_;
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}
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// Config helpers
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bool check_valid_config();
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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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uint32_t tx_count = 0;
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uint32_t rx_hfn = 0;
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uint32_t next_pdcp_rx_sn = 0;
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uint32_t reordering_window = 0;
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uint32_t last_submitted_pdcp_rx_sn = 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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