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103 lines
3.9 KiB
C++
103 lines
3.9 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 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_H
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#define SRSLTE_PDCP_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/task_scheduler.h"
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#include "srslte/interfaces/ue_interfaces.h"
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#include "srslte/upper/pdcp_entity_lte.h"
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namespace srslte {
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class pdcp : public srsue::pdcp_interface_rlc, public srsue::pdcp_interface_rrc
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{
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public:
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pdcp(srslte::task_sched_handle task_sched_, const char* logname);
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virtual ~pdcp();
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void init(srsue::rlc_interface_pdcp* rlc_, srsue::rrc_interface_pdcp* rrc_, srsue::gw_interface_pdcp* gw_);
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void stop();
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// GW interface
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bool is_lcid_enabled(uint32_t lcid);
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// RRC interface
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void reestablish() override;
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void reestablish(uint32_t lcid) override;
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void reset() override;
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void write_sdu(uint32_t lcid, unique_byte_buffer_t sdu, int sn = -1) override;
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void write_sdu_mch(uint32_t lcid, unique_byte_buffer_t sdu);
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void add_bearer(uint32_t lcid, pdcp_config_t cnfg) override;
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void add_bearer_mrb(uint32_t lcid, pdcp_config_t cnfg);
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void del_bearer(uint32_t lcid);
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void change_lcid(uint32_t old_lcid, uint32_t new_lcid) override;
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void config_security(uint32_t lcid, as_security_config_t sec_cfg) override;
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void config_security_all(as_security_config_t sec_cfg) override;
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void enable_integrity(uint32_t lcid, srslte_direction_t direction) override;
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void enable_encryption(uint32_t lcid, srslte_direction_t direction) override;
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void enable_security_timed(uint32_t lcid, srslte_direction_t direction, uint32_t sn);
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bool get_bearer_state(uint32_t lcid, srslte::pdcp_lte_state_t* state);
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bool set_bearer_state(uint32_t lcid, const srslte::pdcp_lte_state_t& state);
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void send_status_report() override;
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void send_status_report(uint32_t lcid) override;
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// RLC interface
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void write_pdu(uint32_t lcid, unique_byte_buffer_t sdu) override;
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void write_pdu_mch(uint32_t lcid, unique_byte_buffer_t sdu) override;
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void write_pdu_bcch_bch(unique_byte_buffer_t sdu) override;
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void write_pdu_bcch_dlsch(unique_byte_buffer_t sdu) override;
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void write_pdu_pcch(unique_byte_buffer_t sdu) override;
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void notify_delivery(uint32_t lcid, const std::vector<uint32_t>& pdcp_sn) override;
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void notify_failure(uint32_t lcid, const std::vector<uint32_t>& pdcp_sn) override;
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// eNB-only methods
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std::map<uint32_t, srslte::unique_byte_buffer_t> get_buffered_pdus(uint32_t lcid);
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// Metrics
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void get_metrics(pdcp_metrics_t& m, const uint32_t nof_tti);
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void reset_metrics();
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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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srslte::task_sched_handle task_sched;
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srslog::basic_logger& logger;
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using pdcp_map_t = std::map<uint16_t, std::unique_ptr<pdcp_entity_base> >;
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pdcp_map_t pdcp_array, pdcp_array_mrb;
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// cache valid lcids to be checked from separate thread
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std::mutex cache_mutex;
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std::set<uint32_t> valid_lcids_cached;
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bool valid_lcid(uint32_t lcid);
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bool valid_mch_lcid(uint32_t lcid);
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// Timer needed for metrics calculation
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std::chrono::high_resolution_clock::time_point metrics_tp;
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};
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} // namespace srslte
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#endif // SRSLTE_PDCP_H
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