104 lines
3.9 KiB
C++
104 lines
3.9 KiB
C++
/*
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* Copyright 2020 Software Radio Systems Limited
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* Author: Vadim Yanitskiy <axilirator@gmail.com>
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* Sponsored by Positive Technologies
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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 SRSUE_NAS_EXT_H
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#define SRSUE_NAS_EXT_H
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#include "srslte/common/buffer_pool.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/nas_pcap.h"
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#include "srslte/common/security.h"
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#include "srslte/common/stack_procedure.h"
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#include "srslte/interfaces/ue_interfaces.h"
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#include "srsue/hdr/stack/upper/nas.h"
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#include "srsue/hdr/stack/upper/nas_common.h"
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#include "srsue/hdr/stack/upper/nas_ext.h"
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#include "srsue/hdr/stack/upper/nas_extif.h"
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#include "srsue/hdr/stack/upper/nas_metrics.h"
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#include "srsue/hdr/stack/upper/rrctl.h"
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using srslte::byte_buffer_t;
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namespace srsue {
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class nas_ext : public nas_base
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{
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public:
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nas_ext(srslte::task_sched_handle task_sched_, const nas_ext_args_t& cfg_) :
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nas_base::nas_base(task_sched_, "NAS"), cfg(cfg_) {};
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void init(usim_interface_nas* usim_, rrc_interface_nas* rrc_, gw_interface_nas* gw_);
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void get_metrics(nas_metrics_t* m);
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void stop();
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// RRC interface
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void left_rrc_connected();
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bool paging(srslte::s_tmsi_t* ue_identity);
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void set_barring(srslte::barring_t barring);
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void write_pdu(uint32_t lcid, srslte::unique_byte_buffer_t pdu);
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bool is_attached();
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bool get_k_asme(uint8_t* k_asme_, uint32_t n);
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uint32_t get_ipv4_addr();
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bool get_ipv6_addr(uint8_t* ipv6_addr);
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void plmn_search_completed(const rrc_interface_nas::found_plmn_t found_plmns[rrc_interface_nas::MAX_FOUND_PLMNS],
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int nof_plmns) final;
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bool connection_request_completed(bool outcome) final;
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// UE interface
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void start_attach_proc(srslte::proc_state_t* result, srslte::establishment_cause_t cause_) final;
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bool detach_request(const bool switch_off) final;
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// timer callback
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void timer_expired(uint32_t timeout_id);
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private:
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nas_ext_args_t cfg = {};
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// Interface to an external NAS entity
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std::unique_ptr<nas_extif_base> iface;
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// RRCTL message handlers
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void handle_rrctl_reset(rrctl::proto::msg_disc disc, const uint8_t* msg, size_t len);
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void handle_rrctl_plmn_search(rrctl::proto::msg_disc disc, const uint8_t* msg, size_t len);
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void handle_rrctl_plmn_select(rrctl::proto::msg_disc disc, const uint8_t* msg, size_t len);
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void handle_rrctl_conn_establish(rrctl::proto::msg_disc disc, const uint8_t* msg, size_t len);
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void handle_rrctl_conn_release(rrctl::proto::msg_disc disc, const uint8_t* msg, size_t len);
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void handle_rrctl_data(rrctl::proto::msg_disc disc, const uint8_t* msg, size_t len);
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void handle_rrctl_param(rrctl::proto::msg_disc disc, const uint8_t* msg, size_t len);
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void handle_rrctl_sec_mode(rrctl::proto::msg_disc disc, const uint8_t* msg, size_t len);
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void handle_rrctl_ext_usim(const uint8_t* msg, size_t len);
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void handle_usim_gen_auth_resp_req(const struct rrctl::proto::ext_usim_msg* msg, size_t len);
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void handle_usim_gen_nas_keys_req(const struct rrctl::proto::ext_usim_msg* msg, size_t len);
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void rrctl_send_confirm(rrctl::proto::msg_type type);
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void rrctl_send_error(rrctl::proto::msg_type type);
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};
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} // namespace srsue
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#endif // SRSUE_NAS_EXT_H
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