mirror of https://github.com/pvnis/srsRAN_4G.git
Ismael Gomez
7 years ago
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GitHub
commit
d51bec49bf
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/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2015 Software Radio Systems Limited
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*
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* \section LICENSE
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*
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* This file is part of the srsUE library.
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*
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* srsUE 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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* srsUE 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 RLCPCAP_H
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#define RLCPCAP_H
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#include <stdint.h>
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#include "srslte/common/pcap.h"
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namespace srslte {
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class rlc_pcap
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{
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public:
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rlc_pcap() {enable_write=false; ue_id=0; pcap_file = NULL; };
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void enable(bool en);
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void open(const char *filename, uint32_t ue_id = 0);
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void close();
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void set_ue_id(uint16_t ue_id);
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void write_dl_am_ccch(uint8_t* pdu, uint32_t pdu_len_bytes);
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void write_ul_am_ccch(uint8_t* pdu, uint32_t pdu_len_bytes);
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private:
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bool enable_write;
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FILE *pcap_file;
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uint32_t ue_id;
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void pack_and_write(uint8_t* pdu,
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uint32_t pdu_len_bytes,
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uint8_t mode,
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uint8_t direction,
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uint8_t priority,
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uint8_t seqnumberlength,
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uint16_t ueid,
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uint16_t channel_type,
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uint16_t channel_id);
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};
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} // namespace srsue
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#endif // RLCPCAP_H
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@ -0,0 +1,90 @@
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/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2015 Software Radio Systems Limited
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*
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* \section LICENSE
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*
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* This file is part of the srsUE library.
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*
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* srsUE 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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* srsUE 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 <stdint.h>
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#include "srslte/srslte.h"
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#include "srslte/common/pcap.h"
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#include "srslte/common/rlc_pcap.h"
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namespace srslte {
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void rlc_pcap::enable(bool en)
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{
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enable_write = true;
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}
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void rlc_pcap::open(const char* filename, uint32_t ue_id)
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{
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fprintf(stdout, "Opening RLC PCAP with DLT=%d\n", RLC_LTE_DLT);
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pcap_file = LTE_PCAP_Open(RLC_LTE_DLT, filename);
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this->ue_id = ue_id;
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enable_write = true;
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}
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void rlc_pcap::close()
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{
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fprintf(stdout, "Saving RLC PCAP file\n");
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LTE_PCAP_Close(pcap_file);
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}
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void rlc_pcap::set_ue_id(uint16_t ue_id) {
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this->ue_id = ue_id;
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}
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void rlc_pcap::pack_and_write(uint8_t* pdu, uint32_t pdu_len_bytes, uint8_t mode, uint8_t direction, uint8_t priority, uint8_t seqnumberlength, uint16_t ueid, uint16_t channel_type, uint16_t channel_id)
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{
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if (enable_write) {
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RLC_Context_Info_t context;
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context.rlcMode = mode;
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context.direction = direction;
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context.priority = priority;
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context.sequenceNumberLength = seqnumberlength;
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context.ueid = ueid;
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context.channelType = channel_type;
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context.channelId = channel_id;
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context.pduLength = pdu_len_bytes;
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if (pdu) {
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LTE_PCAP_RLC_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 rlc_pcap::write_dl_am_ccch(uint8_t* pdu, uint32_t pdu_len_bytes)
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{
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uint8_t priority = 0;
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uint8_t seqnumberlength = 0; // normal length of 10bit
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uint8_t channel_id = 0;
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pack_and_write(pdu, pdu_len_bytes, RLC_AM_MODE, DIRECTION_DOWNLINK, priority, seqnumberlength, ue_id, CHANNEL_TYPE_CCCH, channel_id);
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}
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void rlc_pcap::write_ul_am_ccch(uint8_t* pdu, uint32_t pdu_len_bytes)
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{
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uint8_t priority = 0;
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uint8_t seqnumberlength = 0; // normal length of 10bit
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uint8_t channel_id = 0;
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pack_and_write(pdu, pdu_len_bytes, RLC_AM_MODE, DIRECTION_UPLINK, priority, seqnumberlength, ue_id, CHANNEL_TYPE_CCCH, channel_id);
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}
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}
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