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127 lines
4.4 KiB
C++
127 lines
4.4 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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#include "srsran/interfaces/gnb_interfaces.h"
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#include "srsran/interfaces/ue_gw_interfaces.h"
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#include "srsran/interfaces/ue_rlc_interfaces.h"
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#include "srsran/upper/pdcp.h"
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#include <map>
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#ifndef SRSENB_PDCP_NR_H
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#define SRSENB_PDCP_NR_H
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namespace srsenb {
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struct pdcp_nr_args_t {
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std::string log_level;
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uint32_t log_hex_limit;
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};
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class pdcp_nr : public pdcp_interface_rlc_nr, public pdcp_interface_sdap_nr, public pdcp_interface_rrc_nr
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{
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public:
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explicit pdcp_nr(srsran::task_sched_handle task_sched_, const char* logname);
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virtual ~pdcp_nr() = default;
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void init(const pdcp_nr_args_t& args_,
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rlc_interface_pdcp_nr* rlc_,
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rrc_interface_pdcp_nr* rrc_,
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sdap_interface_pdcp_nr* gtpu_);
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void stop();
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// pdcp_interface_rlc_nr
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void write_pdu(uint16_t rnti, uint32_t lcid, srsran::unique_byte_buffer_t sdu);
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void notify_delivery(uint16_t rnti, uint32_t lcid, const srsran::pdcp_sn_vector_t& pdcp_sn);
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void notify_failure(uint16_t rnti, uint32_t lcid, const srsran::pdcp_sn_vector_t& pdcp_sn);
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void write_pdu_mch(uint32_t lcid, srsran::unique_byte_buffer_t sdu) {}
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// pdcp_interface_rrc_nr
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void reset(uint16_t rnti) final;
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void add_user(uint16_t rnti) final;
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void rem_user(uint16_t rnti) final;
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void write_sdu(uint16_t rnti, uint32_t lcid, srsran::unique_byte_buffer_t sdu) final;
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void add_bearer(uint16_t rnti, uint32_t lcid, srsran::pdcp_config_t cnfg) final;
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void config_security(uint16_t rnti, uint32_t lcid, srsran::as_security_config_t sec_cfg) final;
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void enable_integrity(uint16_t rnti, uint32_t lcid) final;
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void enable_encryption(uint16_t rnti, uint32_t lcid) final;
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private:
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class user_interface_rlc final : public srsue::rlc_interface_pdcp
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{
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public:
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uint16_t rnti;
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srsenb::rlc_interface_pdcp_nr* rlc;
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// rlc_interface_pdcp_nr
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void write_sdu(uint32_t lcid, srsran::unique_byte_buffer_t sdu) final;
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void discard_sdu(uint32_t lcid, uint32_t discard_sn) final;
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bool rb_is_um(uint32_t lcid) final;
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bool sdu_queue_is_full(uint32_t lcid) final;
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};
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class user_interface_sdap : public srsue::gw_interface_pdcp
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{
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public:
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uint16_t rnti;
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srsenb::sdap_interface_pdcp_nr* sdap;
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// gw_interface_pdcp
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void write_pdu(uint32_t lcid, srsran::unique_byte_buffer_t pdu) final;
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void write_pdu_mch(uint32_t lcid, srsran::unique_byte_buffer_t sdu) final {}
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};
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class user_interface_rrc : public srsue::rrc_interface_pdcp
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{
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public:
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uint16_t rnti;
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srsenb::rrc_interface_pdcp_nr* rrc;
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// rrc_interface_pdcp_nr
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void write_pdu(uint32_t lcid, srsran::unique_byte_buffer_t pdu) final;
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void write_pdu_bcch_bch(srsran::unique_byte_buffer_t pdu) final;
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void write_pdu_bcch_dlsch(srsran::unique_byte_buffer_t pdu) final;
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void write_pdu_pcch(srsran::unique_byte_buffer_t pdu) final;
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void write_pdu_mch(uint32_t lcid, srsran::unique_byte_buffer_t pdu) final {}
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void notify_pdcp_integrity_error(uint32_t lcid) final {}
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const char* get_rb_name(uint32_t lcid) final;
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};
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class user_interface
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{
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public:
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user_interface_rlc rlc_itf;
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user_interface_sdap sdap_itf;
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user_interface_rrc rrc_itf;
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std::unique_ptr<srsran::pdcp> pdcp;
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};
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// args
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pdcp_nr_args_t m_args = {};
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rlc_interface_pdcp_nr* m_rlc = nullptr;
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rrc_interface_pdcp_nr* m_rrc = nullptr;
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sdap_interface_pdcp_nr* m_sdap = nullptr;
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std::map<uint32_t, user_interface> users;
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srsran::task_sched_handle task_sched;
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srslog::basic_logger& logger;
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};
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} // namespace srsenb
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#endif // SRSENB_PDCP_NR_H
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