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C++

/*
* Copyright 2013-2019 Software Radio Systems Limited
*
* This file is part of srsLTE.
*
* srsLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* srsLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* A copy of the GNU Affero General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#ifndef SRSUE_USIM_H
#define SRSUE_USIM_H
#include <string>
#include "usim_base.h"
#include "srslte/common/log.h"
#include "srslte/common/common.h"
#include "srslte/interfaces/ue_interfaces.h"
#include "srslte/common/security.h"
namespace srsue {
class usim
:public usim_base
{
public:
usim(srslte::log* log_);
int init(usim_args_t* args);
void stop();
// NAS interface
std::string get_imsi_str();
std::string get_imei_str();
bool get_imsi_vec(uint8_t* imsi_, uint32_t n);
bool get_imei_vec(uint8_t* imei_, uint32_t n);
bool get_home_plmn_id(srslte::plmn_id_t* home_plmn_id);
auth_result_t generate_authentication_response(uint8_t *rand,
uint8_t *autn_enb,
uint16_t mcc,
uint16_t mnc,
uint8_t *res,
int *res_len,
uint8_t *k_asme);
void generate_nas_keys(uint8_t *k_asme,
uint8_t *k_nas_enc,
uint8_t *k_nas_int,
srslte::CIPHERING_ALGORITHM_ID_ENUM cipher_algo,
srslte::INTEGRITY_ALGORITHM_ID_ENUM integ_algo);
// RRC interface
void generate_as_keys(uint8_t *k_asme,
uint32_t count_ul,
uint8_t *k_rrc_enc,
uint8_t *k_rrc_int,
uint8_t *k_up_enc,
uint8_t *k_up_int,
srslte::CIPHERING_ALGORITHM_ID_ENUM cipher_algo,
srslte::INTEGRITY_ALGORITHM_ID_ENUM integ_algo);
void generate_as_keys_ho(uint32_t pci,
uint32_t earfcn,
int ncc,
uint8_t *k_rrc_enc,
uint8_t *k_rrc_int,
uint8_t *k_up_enc,
uint8_t *k_up_int,
srslte::CIPHERING_ALGORITHM_ID_ENUM cipher_algo,
srslte::INTEGRITY_ALGORITHM_ID_ENUM integ_algo);
private:
auth_result_t gen_auth_res_milenage(uint8_t *rand,
uint8_t *autn_enb,
uint16_t mcc,
uint16_t mnc,
uint8_t *res,
int *res_len,
uint8_t *k_asme);
auth_result_t gen_auth_res_xor(uint8_t *rand,
uint8_t *autn_enb,
uint16_t mcc,
uint16_t mnc,
uint8_t *res,
int *res_len,
uint8_t *k_asme);
void str_to_hex(std::string str, uint8_t *hex);
srslte::log *usim_log;
// User data
auth_algo_t auth_algo;
uint8_t amf[2]; // 3GPP 33.102 v10.0.0 Annex H
uint8_t op[16];
uint8_t opc[16];
uint64_t imsi;
uint64_t imei;
uint8_t k[16];
std::string imsi_str;
std::string imei_str;
// Security variables
uint8_t rand[16];
uint8_t ck[16];
uint8_t ik[16];
uint8_t ak[6];
uint8_t mac[8];
uint8_t autn[16];
uint8_t k_asme[32];
uint8_t nh[32];
uint8_t k_enb_initial[32];
uint8_t k_enb[32];
uint8_t k_enb_star[32];
uint32_t current_ncc;
bool is_first_ncc;
bool initiated;
};
} // namespace srsue
#endif // SRSUE_USIM_H