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122 lines
4.3 KiB
C++
122 lines
4.3 KiB
C++
/*
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* Copyright 2013-2019 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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#include "srslte/common/timers.h"
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#include "srslte/interfaces/enb_interfaces.h"
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#include "srslte/interfaces/ue_interfaces.h"
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#include "srslte/upper/pdcp.h"
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#include <map>
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#ifndef SRSENB_PDCP_H
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#define SRSENB_PDCP_H
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namespace srsenb {
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class pdcp : public pdcp_interface_rlc, public pdcp_interface_gtpu, public pdcp_interface_rrc
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{
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public:
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pdcp(srslte::timer_handler* timers, srslte::log* pdcp_log_);
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virtual ~pdcp() {}
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void init(rlc_interface_pdcp* rlc_, rrc_interface_pdcp* rrc_, gtpu_interface_pdcp* gtpu_);
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void stop();
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// pdcp_interface_rlc
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void write_pdu(uint16_t rnti, uint32_t lcid, srslte::unique_byte_buffer_t sdu) override;
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void write_pdu_mch(uint32_t lcid, srslte::unique_byte_buffer_t sdu) {}
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// pdcp_interface_rrc
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void reset(uint16_t rnti) override;
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void add_user(uint16_t rnti) override;
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void rem_user(uint16_t rnti) override;
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void write_sdu(uint16_t rnti, uint32_t lcid, srslte::unique_byte_buffer_t sdu) override;
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void add_bearer(uint16_t rnti, uint32_t lcid, srslte::pdcp_config_t cnfg) override;
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void config_security(uint16_t rnti,
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uint32_t lcid,
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uint8_t* k_rrc_enc_,
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uint8_t* k_rrc_int_,
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uint8_t* k_up_enc_,
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srslte::CIPHERING_ALGORITHM_ID_ENUM cipher_algo_,
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srslte::INTEGRITY_ALGORITHM_ID_ENUM integ_algo_) override;
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void enable_integrity(uint16_t rnti, uint32_t lcid) override;
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void enable_encryption(uint16_t rnti, uint32_t lcid) override;
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bool get_bearer_status(uint16_t rnti, uint32_t lcid, uint16_t* dlsn, uint16_t* dlhfn, uint16_t* ulsn, uint16_t* ulhfn)
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override;
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private:
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class user_interface_rlc : 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* rlc;
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// rlc_interface_pdcp
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void write_sdu(uint32_t lcid, srslte::unique_byte_buffer_t sdu, bool blocking);
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void discard_sdu(uint32_t lcid, uint32_t discard_sn);
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bool rb_is_um(uint32_t lcid);
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};
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class user_interface_gtpu : 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::gtpu_interface_pdcp* gtpu;
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// gw_interface_pdcp
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void write_pdu(uint32_t lcid, srslte::unique_byte_buffer_t pdu);
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void write_pdu_mch(uint32_t lcid, srslte::unique_byte_buffer_t sdu) {}
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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* rrc;
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// rrc_interface_pdcp
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void write_pdu(uint32_t lcid, srslte::unique_byte_buffer_t pdu);
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void write_pdu_bcch_bch(srslte::unique_byte_buffer_t pdu);
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void write_pdu_bcch_dlsch(srslte::unique_byte_buffer_t pdu);
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void write_pdu_pcch(srslte::unique_byte_buffer_t pdu);
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void write_pdu_mch(uint32_t lcid, srslte::unique_byte_buffer_t pdu) {}
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std::string get_rb_name(uint32_t lcid);
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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_gtpu gtpu_itf;
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user_interface_rrc rrc_itf;
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srslte::pdcp* pdcp;
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};
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void clear_user(user_interface* ue);
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std::map<uint32_t, user_interface> users;
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rlc_interface_pdcp* rlc;
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rrc_interface_pdcp* rrc;
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gtpu_interface_pdcp* gtpu;
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srslte::timer_handler* timers;
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srslte::log* log_h;
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srslte::byte_buffer_pool* pool;
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};
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} // namespace srsenb
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#endif // SRSENB_PDCP_H
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