mirror of https://github.com/pvnis/srsRAN_4G.git
Moved PDCP configs to pdcp_config.h. Added `as_security_cfg_t` structure to hold access stratum keys.
Refactored PDCP, RRC and USIM accordingly.master
Pedro Alvarez
5 years ago
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dc8dca2a08
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96c82b3fc6
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/*
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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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/******************************************************************************
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* File: pdcp_config.h
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* Description: Structures used for configuration of the PDCP entities
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*****************************************************************************/
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#ifndef SRSLTE_PDCP_CONFIG_H
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#define SRSLTE_PDCP_CONFIG_H
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#include "srslte/common/security.h"
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#include <stdint.h>
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namespace srslte {
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/***************************
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* PDCP Config
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**************************/
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// LTE and NR common config
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const uint8_t PDCP_SN_LEN_5 = 5;
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const uint8_t PDCP_SN_LEN_7 = 7;
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const uint8_t PDCP_SN_LEN_12 = 12;
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const uint8_t PDCP_SN_LEN_18 = 18;
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typedef enum { PDCP_RB_IS_SRB, PDCP_RB_IS_DRB } pdcp_rb_type_t;
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// Taken from PDCP-Config (TS 38.331 version 15.2.1)
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enum class pdcp_t_reordering_t {
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ms0 = 0,
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ms1 = 1,
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ms2 = 2,
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ms4 = 4,
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ms5 = 5,
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ms8 = 8,
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ms10 = 10,
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ms15 = 15,
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ms20 = 20,
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ms30 = 30,
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ms40 = 40,
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ms50 = 50,
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ms60 = 60,
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ms80 = 80,
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ms100 = 100,
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ms120 = 120,
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ms140 = 140,
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ms160 = 160,
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ms180 = 180,
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ms200 = 200,
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ms220 = 220,
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ms240 = 240,
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ms260 = 260,
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ms280 = 280,
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ms300 = 300,
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ms500 = 500,
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ms750 = 750,
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ms1000 = 1000,
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ms1250 = 1250,
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ms1500 = 1500,
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ms1750 = 1750,
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ms2000 = 2000,
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ms2250 = 2250,
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ms2500 = 2500,
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ms2750 = 2750,
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ms3000 = 3000
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};
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// Taken from PDCP-Config (TS 38.331 version 15.2.1)
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enum class pdcp_discard_timer_t {
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ms10 = 10,
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ms20 = 20,
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ms30 = 30,
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ms40 = 40,
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ms50 = 50,
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ms60 = 60,
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ms75 = 75,
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ms100 = 100,
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ms150 = 150,
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ms200 = 200,
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ms250 = 250,
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ms300 = 300,
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ms500 = 500,
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ms750 = 750,
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ms1500 = 1500,
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infinity = 0
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};
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class pdcp_config_t
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{
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public:
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pdcp_config_t(uint8_t bearer_id_,
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pdcp_rb_type_t rb_type_,
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security_direction_t tx_direction_,
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security_direction_t rx_direction_,
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uint8_t sn_len_,
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pdcp_t_reordering_t t_reordering_,
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pdcp_discard_timer_t discard_timer_) :
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bearer_id(bearer_id_),
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rb_type(rb_type_),
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tx_direction(tx_direction_),
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rx_direction(rx_direction_),
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sn_len(sn_len_),
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t_reordering(t_reordering_),
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discard_timer(discard_timer_)
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{
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hdr_len_bytes = ceil((float)sn_len / 8);
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}
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uint8_t bearer_id = 1;
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pdcp_rb_type_t rb_type = PDCP_RB_IS_DRB;
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security_direction_t tx_direction = SECURITY_DIRECTION_DOWNLINK;
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security_direction_t rx_direction = SECURITY_DIRECTION_UPLINK;
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uint8_t sn_len = PDCP_SN_LEN_12;
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uint8_t hdr_len_bytes = 2;
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pdcp_t_reordering_t t_reordering = pdcp_t_reordering_t::ms500;
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pdcp_discard_timer_t discard_timer = pdcp_discard_timer_t::infinity;
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// TODO: Support the following configurations
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// bool do_rohc;
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};
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} // namespace srslte
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#endif // SRSLTE_PDCP_CONFIG_H
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