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118 lines
3.6 KiB
C++
118 lines
3.6 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/mac_nr_pcap.h"
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#include "srslte/srslte.h"
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#include <stdint.h>
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namespace srslte {
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mac_nr_pcap::mac_nr_pcap() {}
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mac_nr_pcap::~mac_nr_pcap()
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{
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if (pcap_file) {
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close();
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}
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}
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void mac_nr_pcap::enable(const bool& enable_)
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{
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enable_write = enable_;
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}
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void mac_nr_pcap::open(const std::string& filename_, const uint16_t& ue_id_)
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{
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fprintf(stdout, "Opening MAC-NR PCAP with DLT=%d\n", UDP_DLT);
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filename = filename_;
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pcap_file = LTE_PCAP_Open(UDP_DLT, filename.c_str());
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ue_id = ue_id_;
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enable_write = true;
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}
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void mac_nr_pcap::close()
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{
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enable_write = false;
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fprintf(stdout, "Saving MAC-NR PCAP to %s\n", filename.c_str());
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LTE_PCAP_Close(pcap_file);
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pcap_file = nullptr;
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}
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void mac_nr_pcap::set_ue_id(const uint16_t& ue_id_)
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{
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ue_id = ue_id_;
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}
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void mac_nr_pcap::pack_and_write(uint8_t* pdu,
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uint32_t pdu_len_bytes,
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uint32_t tti,
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uint16_t crnti,
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uint8_t harqid,
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uint8_t direction,
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uint8_t rnti_type)
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{
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if (enable_write) {
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mac_nr_context_info_t context = {};
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context.radioType = FDD_RADIO;
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context.direction = direction;
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context.rntiType = rnti_type;
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context.rnti = crnti;
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context.ueid = ue_id;
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context.harqid = harqid;
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context.system_frame_number = tti / 10;
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context.sub_frame_number = tti % 10;
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if (pdu) {
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NR_PCAP_MAC_WritePDU(pcap_file, &context, pdu, pdu_len_bytes);
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}
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}
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}
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void mac_nr_pcap::write_dl_crnti(uint8_t* pdu, uint32_t pdu_len_bytes, uint16_t rnti, uint8_t harqid, uint32_t tti)
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{
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pack_and_write(pdu, pdu_len_bytes, tti, rnti, harqid, DIRECTION_DOWNLINK, C_RNTI);
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}
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void mac_nr_pcap::write_ul_crnti(uint8_t* pdu, uint32_t pdu_len_bytes, uint16_t rnti, uint8_t harqid, uint32_t tti)
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{
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pack_and_write(pdu, pdu_len_bytes, tti, rnti, harqid, DIRECTION_UPLINK, C_RNTI);
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}
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void mac_nr_pcap::write_dl_ra_rnti(uint8_t* pdu, uint32_t pdu_len_bytes, uint16_t rnti, uint8_t harqid, uint32_t tti)
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{
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pack_and_write(pdu, pdu_len_bytes, tti, rnti, harqid, DIRECTION_DOWNLINK, RA_RNTI);
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}
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void mac_nr_pcap::write_dl_bch(uint8_t* pdu, uint32_t pdu_len_bytes, uint16_t rnti, uint8_t harqid, uint32_t tti)
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{
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pack_and_write(pdu, pdu_len_bytes, tti, rnti, harqid, DIRECTION_DOWNLINK, NO_RNTI);
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}
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void mac_nr_pcap::write_dl_pch(uint8_t* pdu, uint32_t pdu_len_bytes, uint16_t rnti, uint8_t harqid, uint32_t tti)
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{
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pack_and_write(pdu, pdu_len_bytes, tti, rnti, harqid, DIRECTION_DOWNLINK, P_RNTI);
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}
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void mac_nr_pcap::write_dl_si_rnti(uint8_t* pdu, uint32_t pdu_len_bytes, uint16_t rnti, uint8_t harqid, uint32_t tti)
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{
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pack_and_write(pdu, pdu_len_bytes, tti, rnti, harqid, DIRECTION_DOWNLINK, SI_RNTI);
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}
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} // namespace srslte
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