mirror of https://github.com/PentHertz/srsLTE.git
98 lines
2.7 KiB
C++
98 lines
2.7 KiB
C++
/**
|
|
*
|
|
* \section COPYRIGHT
|
|
*
|
|
* Copyright 2013-2021 Software Radio Systems Limited
|
|
*
|
|
* By using this file, you agree to the terms and conditions set
|
|
* forth in the LICENSE file which can be found at the top level of
|
|
* the distribution.
|
|
*
|
|
*/
|
|
|
|
#include "srsran/common/rlc_pcap.h"
|
|
#include "srsran/common/pcap.h"
|
|
#include "srsran/srsran.h"
|
|
#include <stdint.h>
|
|
|
|
namespace srsran {
|
|
|
|
void rlc_pcap::enable(bool en)
|
|
{
|
|
enable_write = true;
|
|
}
|
|
|
|
void rlc_pcap::open(const char* filename, rlc_config_t config)
|
|
{
|
|
fprintf(stdout, "Opening RLC PCAP with DLT=%d\n", UDP_DLT);
|
|
pcap_file = DLT_PCAP_Open(UDP_DLT, filename);
|
|
enable_write = true;
|
|
|
|
if (config.rlc_mode == rlc_mode_t::am) {
|
|
mode = RLC_AM_MODE;
|
|
sn_length = AM_SN_LENGTH_10_BITS;
|
|
} else if (config.rlc_mode == rlc_mode_t::um) {
|
|
mode = RLC_UM_MODE;
|
|
if (config.um.rx_sn_field_length == rlc_umd_sn_size_t::size5bits) {
|
|
sn_length = UM_SN_LENGTH_5_BITS;
|
|
} else {
|
|
sn_length = UM_SN_LENGTH_10_BITS;
|
|
}
|
|
} else {
|
|
mode = RLC_TM_MODE;
|
|
}
|
|
}
|
|
void rlc_pcap::close()
|
|
{
|
|
fprintf(stdout, "Saving RLC PCAP file\n");
|
|
DLT_PCAP_Close(pcap_file);
|
|
}
|
|
|
|
void rlc_pcap::set_ue_id(uint16_t ue_id_)
|
|
{
|
|
ue_id = ue_id_;
|
|
}
|
|
|
|
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)
|
|
{
|
|
if (enable_write) {
|
|
RLC_Context_Info_t context;
|
|
context.rlcMode = mode_;
|
|
context.direction = direction;
|
|
context.priority = priority;
|
|
context.sequenceNumberLength = seqnumberlength;
|
|
context.ueid = ueid;
|
|
context.channelType = channel_type;
|
|
context.channelId = channel_id;
|
|
context.pduLength = pdu_len_bytes;
|
|
if (pdu) {
|
|
LTE_PCAP_RLC_WritePDU(pcap_file, &context, pdu, pdu_len_bytes);
|
|
}
|
|
}
|
|
}
|
|
|
|
void rlc_pcap::write_dl_ccch(uint8_t* pdu, uint32_t pdu_len_bytes)
|
|
{
|
|
uint8_t priority = 0;
|
|
uint8_t channel_id = CHANNEL_TYPE_DRB;
|
|
pack_and_write(
|
|
pdu, pdu_len_bytes, mode, DIRECTION_DOWNLINK, priority, sn_length, ue_id, CHANNEL_TYPE_CCCH, channel_id);
|
|
}
|
|
|
|
void rlc_pcap::write_ul_ccch(uint8_t* pdu, uint32_t pdu_len_bytes)
|
|
{
|
|
uint8_t priority = 0;
|
|
uint8_t channel_id = CHANNEL_TYPE_DRB;
|
|
pack_and_write(pdu, pdu_len_bytes, mode, DIRECTION_UPLINK, priority, sn_length, ue_id, CHANNEL_TYPE_CCCH, channel_id);
|
|
}
|
|
|
|
} // namespace srsran
|