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srsRAN/srsenb/src/main.cc

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#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <pthread.h>
#include <iostream>
#include <fstream>
#include <string>
#include <boost/program_options.hpp>
#include <boost/program_options/parsers.hpp>
#include "enb.h"
#include "metrics_stdout.h"
using namespace std;
using namespace srsenb;
namespace bpo = boost::program_options;
/**********************************************************************
* Program arguments processing
***********************************************************************/
string config_file;
void parse_args(all_args_t *args, int argc, char* argv[]) {
string enb_id;
string cell_id;
string tac;
string mcc;
string mnc;
// Command line only options
bpo::options_description general("General options");
general.add_options()
("help,h", "Produce help message")
("version,v", "Print version information and exit")
;
// Command line or config file options
bpo::options_description common("Configuration options");
common.add_options()
("enb.enb_id", bpo::value<string>(&enb_id)->default_value("0x0"), "eNodeB ID")
("enb.name", bpo::value<string>(&args->enb.s1ap.enb_name)->default_value("srsenb01"), "eNodeB Name")
("enb.cell_id", bpo::value<string>(&cell_id)->default_value("0x0"), "Cell ID")
("enb.tac", bpo::value<string>(&tac)->default_value("0x0"), "Tracking Area Code")
("enb.mcc", bpo::value<string>(&mcc)->default_value("001"), "Mobile Country Code")
("enb.mnc", bpo::value<string>(&mnc)->default_value("01"), "Mobile Network Code")
("enb.mme_addr", bpo::value<string>(&args->enb.s1ap.mme_addr)->default_value("127.0.0.1"),"IP address of MME for S1 connnection")
("enb.gtp_bind_addr", bpo::value<string>(&args->enb.s1ap.gtp_bind_addr)->default_value("192.168.3.1"), "Local IP address to bind for GTP connection")
("enb.phy_cell_id", bpo::value<uint32_t>(&args->enb.pci)->default_value(0), "Physical Cell Identity (PCI)")
("enb.n_prb", bpo::value<uint32_t>(&args->enb.n_prb)->default_value(25), "Number of PRB")
("enb_files.sib_config", bpo::value<string>(&args->enb_files.sib_config)->default_value("sib.conf"), "SIB configuration files")
("enb_files.rr_config", bpo::value<string>(&args->enb_files.rr_config)->default_value("rr.conf"), "RR configuration files")
("enb_files.drb_config", bpo::value<string>(&args->enb_files.drb_config)->default_value("drb.conf"), "DRB configuration files")
("rf.dl_earfcn", bpo::value<uint32_t>(&args->rf.dl_earfcn)->default_value(3400), "Downlink EARFCN")
("rf.ul_earfcn", bpo::value<uint32_t>(&args->rf.ul_earfcn)->default_value(0), "Uplink EARFCN (Default based on Downlink EARFCN)")
("rf.rx_gain", bpo::value<float>(&args->rf.rx_gain)->default_value(50), "Front-end receiver gain")
("rf.tx_gain", bpo::value<float>(&args->rf.tx_gain)->default_value(70), "Front-end transmitter gain")
("rf.dl_freq", bpo::value<float>(&args->rf.dl_freq)->default_value(-1), "Downlink Frequency (if positive overrides EARFCN)")
("rf.ul_freq", bpo::value<float>(&args->rf.ul_freq)->default_value(-1), "Uplink Frequency (if positive overrides EARFCN)")
("rf.device_name", bpo::value<string>(&args->rf.device_name)->default_value("auto"), "Front-end device name")
("rf.device_args", bpo::value<string>(&args->rf.device_args)->default_value("auto"), "Front-end device arguments")
("rf.time_adv_nsamples", bpo::value<string>(&args->rf.time_adv_nsamples)->default_value("auto"), "Transmission time advance")
("rf.burst_preamble_us", bpo::value<string>(&args->rf.burst_preamble)->default_value("auto"), "Transmission time advance")
("pcap.enable", bpo::value<bool>(&args->pcap.enable)->default_value(false), "Enable MAC packet captures for wireshark")
("pcap.filename", bpo::value<string>(&args->pcap.filename)->default_value("ue.pcap"), "MAC layer capture filename")
("gui.enable", bpo::value<bool>(&args->gui.enable)->default_value(false), "Enable GUI plots")
("log.phy_level", bpo::value<string>(&args->log.phy_level), "PHY log level")
("log.phy_hex_limit", bpo::value<int>(&args->log.phy_hex_limit), "PHY log hex dump limit")
("log.mac_level", bpo::value<string>(&args->log.mac_level), "MAC log level")
("log.mac_hex_limit", bpo::value<int>(&args->log.mac_hex_limit), "MAC log hex dump limit")
("log.rlc_level", bpo::value<string>(&args->log.rlc_level), "RLC log level")
("log.rlc_hex_limit", bpo::value<int>(&args->log.rlc_hex_limit), "RLC log hex dump limit")
("log.pdcp_level", bpo::value<string>(&args->log.pdcp_level), "PDCP log level")
("log.pdcp_hex_limit",bpo::value<int>(&args->log.pdcp_hex_limit), "PDCP log hex dump limit")
("log.rrc_level", bpo::value<string>(&args->log.rrc_level), "RRC log level")
("log.rrc_hex_limit", bpo::value<int>(&args->log.rrc_hex_limit), "RRC log hex dump limit")
("log.gtpu_level", bpo::value<string>(&args->log.gtpu_level), "GTPU log level")
("log.gtpu_hex_limit",bpo::value<int>(&args->log.gtpu_hex_limit), "GTPU log hex dump limit")
("log.s1ap_level", bpo::value<string>(&args->log.s1ap_level), "S1AP log level")
("log.s1ap_hex_limit",bpo::value<int>(&args->log.s1ap_hex_limit), "S1AP log hex dump limit")
("log.all_level", bpo::value<string>(&args->log.all_level)->default_value("info"), "ALL log level")
("log.all_hex_limit", bpo::value<int>(&args->log.all_hex_limit)->default_value(32), "ALL log hex dump limit")
("log.filename", bpo::value<string>(&args->log.filename)->default_value("/tmp/ue.log"),"Log filename")
/* MCS section */
("scheduler.pdsch_mcs",
bpo::value<int>(&args->expert.mac.sched.pdsch_mcs)->default_value(-1),
"Optional fixed PDSCH MCS (ignores reported CQIs if specified)")
("scheduler.pdsch_max_mcs",
bpo::value<int>(&args->expert.mac.sched.pdsch_max_mcs)->default_value(-1),
"Optional PDSCH MCS limit")
("scheduler.pusch_mcs",
bpo::value<int>(&args->expert.mac.sched.pusch_mcs)->default_value(-1),
"Optional fixed PUSCH MCS (ignores reported CQIs if specified)")
("scheduler.pusch_max_mcs",
bpo::value<int>(&args->expert.mac.sched.pusch_max_mcs)->default_value(16),
"Optional PUSCH MCS limit")
("scheduler.nof_ctrl_symbols",
bpo::value<int>(&args->expert.mac.sched.nof_ctrl_symbols)->default_value(3),
"Number of control symbols")
/* Expert section */
("expert.metrics_period_secs",
bpo::value<float>(&args->expert.metrics_period_secs)->default_value(1.0),
"Periodicity for metrics in seconds")
("expert.pregenerate_signals",
bpo::value<bool>(&args->expert.phy.pregenerate_signals)->default_value(false),
"Pregenerate uplink signals after attach. Improves CPU performance.")
("expert.pusch_max_its",
bpo::value<int>(&args->expert.phy.pusch_max_its)->default_value(4),
"Maximum number of turbo decoder iterations")
("expert.tx_amplitude",
bpo::value<float>(&args->expert.phy.tx_amplitude)->default_value(0.8),
"Transmit amplitude factor")
("expert.nof_phy_threads",
bpo::value<int>(&args->expert.phy.nof_phy_threads)->default_value(2),
"Number of PHY threads")
("expert.link_failure_nof_err",
bpo::value<int>(&args->expert.mac.link_failure_nof_err)->default_value(10),
"Number of PUSCH failures after which a radio-link failure is triggered")
("expert.max_prach_offset_us",
bpo::value<float>(&args->expert.phy.max_prach_offset_us)->default_value(30),
"Maximum allowed RACH offset (in us)")
("expert.equalizer_mode",
bpo::value<string>(&args->expert.phy.equalizer_mode)->default_value("mmse"),
"Equalizer mode")
("expert.estimator_fil_w",
bpo::value<float>(&args->expert.phy.estimator_fil_w)->default_value(0.1),
"Chooses the coefficients for the 3-tap channel estimator centered filter.")
("expert.rrc_inactivity_timer",
bpo::value<uint32_t>(&args->expert.rrc_inactivity_timer)->default_value(5000),
"Inactivity timer in ms")
("rf_calibration.tx_corr_dc_gain", bpo::value<float>(&args->rf_cal.tx_corr_dc_gain)->default_value(0.0), "TX DC offset gain correction")
("rf_calibration.tx_corr_dc_phase", bpo::value<float>(&args->rf_cal.tx_corr_dc_phase)->default_value(0.0), "TX DC offset phase correction")
("rf_calibration.tx_corr_iq_i", bpo::value<float>(&args->rf_cal.tx_corr_iq_i)->default_value(0.0), "TX IQ imbalance inphase correction")
("rf_calibration.tx_corr_iq_q", bpo::value<float>(&args->rf_cal.tx_corr_iq_q)->default_value(0.0), "TX IQ imbalance quadrature correction")
;
// Positional options - config file location
bpo::options_description position("Positional options");
position.add_options()
("config_file", bpo::value< string >(&config_file), "eNodeB configuration file")
;
bpo::positional_options_description p;
p.add("config_file", -1);
// these options are allowed on the command line
bpo::options_description cmdline_options;
cmdline_options.add(common).add(position).add(general);
// parse the command line and store result in vm
bpo::variables_map vm;
bpo::store(bpo::command_line_parser(argc, argv).options(cmdline_options).positional(p).run(), vm);
bpo::notify(vm);
// help option was given - print usage and exit
if (vm.count("help")) {
cout << "Usage: " << argv[0] << " [OPTIONS] config_file" << endl << endl;
cout << common << endl << general << endl;
exit(0);
}
// print version number and exit
// print version number and exit
if (vm.count("version")) {
cout << "Version " <<
srslte_get_version_major() << "." <<
srslte_get_version_minor() << "." <<
srslte_get_version_patch() << endl;
exit(0);
}
// no config file given - print usage and exit
if (!vm.count("config_file")) {
cout << "Error: Configuration file not provided" << endl;
cout << "Usage: " << argv[0] << " [OPTIONS] config_file" << endl << endl;
exit(0);
} else {
cout << "Reading configuration file " << config_file << "..." << endl;
ifstream conf(config_file.c_str(), ios::in);
if(conf.fail()) {
cout << "Failed to read configuration file " << config_file << " - exiting" << endl;
exit(1);
}
bpo::store(bpo::parse_config_file(conf, common), vm);
bpo::notify(vm);
}
// Convert hex strings
{
std::stringstream sstr;
sstr << std::hex << vm["enb.enb_id"].as<std::string>();
sstr >> args->enb.s1ap.enb_id;
}
{
std::stringstream sstr;
sstr << std::hex << vm["enb.cell_id"].as<std::string>();
uint16_t tmp; // Need intermediate uint16_t as uint8_t is treated as char
sstr >> tmp;
args->enb.s1ap.cell_id = tmp;
}
{
std::stringstream sstr;
sstr << std::hex << vm["enb.tac"].as<std::string>();
sstr >> args->enb.s1ap.tac;
}
// Convert MCC/MNC strings
if(!srslte::string_to_mcc(mcc, &args->enb.s1ap.mcc)) {
cout << "Error parsing enb.mcc:" << mcc << " - must be a 3-digit string." << endl;
}
if(!srslte::string_to_mnc(mnc, &args->enb.s1ap.mnc)) {
cout << "Error parsing enb.mnc:" << mnc << " - must be a 2 or 3-digit string." << endl;
}
// Apply all_level to any unset layers
if (vm.count("log.all_level")) {
if(!vm.count("log.phy_level")) {
args->log.phy_level = args->log.all_level;
}
if(!vm.count("log.mac_level")) {
args->log.mac_level = args->log.all_level;
}
if(!vm.count("log.rlc_level")) {
args->log.rlc_level = args->log.all_level;
}
if(!vm.count("log.pdcp_level")) {
args->log.pdcp_level = args->log.all_level;
}
if(!vm.count("log.rrc_level")) {
args->log.rrc_level = args->log.all_level;
}
if(!vm.count("log.gtpu_level")) {
args->log.gtpu_level = args->log.all_level;
}
if(!vm.count("log.s1ap_level")) {
args->log.s1ap_level = args->log.all_level;
}
}
// Apply all_hex_limit to any unset layers
if (vm.count("log.all_hex_limit")) {
if(!vm.count("log.phy_hex_limit")) {
args->log.phy_hex_limit = args->log.all_hex_limit;
}
if(!vm.count("log.mac_hex_limit")) {
args->log.mac_hex_limit = args->log.all_hex_limit;
}
if(!vm.count("log.rlc_hex_limit")) {
args->log.rlc_hex_limit = args->log.all_hex_limit;
}
if(!vm.count("log.pdcp_hex_limit")) {
args->log.pdcp_hex_limit = args->log.all_hex_limit;
}
if(!vm.count("log.rrc_hex_limit")) {
args->log.rrc_hex_limit = args->log.all_hex_limit;
}
if(!vm.count("log.gtpu_hex_limit")) {
args->log.gtpu_hex_limit = args->log.all_hex_limit;
}
if(!vm.count("log.s1ap_hex_limit")) {
args->log.s1ap_hex_limit = args->log.all_hex_limit;
}
}
}
static bool running = true;
static bool do_metrics = false;
void sig_int_handler(int signo)
{
running = false;
}
void *input_loop(void *m)
{
metrics_stdout *metrics = (metrics_stdout*) m;
char key;
while(running) {
cin >> key;
if('t' == key) {
do_metrics = !do_metrics;
if(do_metrics) {
cout << "Enter t to stop trace." << endl;
} else {
cout << "Enter t to restart trace." << endl;
}
metrics->toggle_print(do_metrics);
}
}
return NULL;
}
int main(int argc, char *argv[])
{
signal(SIGINT, sig_int_handler);
all_args_t args;
metrics_stdout metrics;
enb *enb = enb::get_instance();
cout << "--- Software Radio Systems LTE eNodeB ---" << endl << endl;
parse_args(&args, argc, argv);
if(!enb->init(&args)) {
exit(1);
}
metrics.init(enb, args.expert.metrics_period_secs);
pthread_t input;
pthread_create(&input, NULL, &input_loop, &metrics);
bool plot_started = false;
bool signals_pregenerated = false;
while(running) {
if (!plot_started && args.gui.enable) {
enb->start_plot();
plot_started = true;
}
sleep(1);
}
pthread_cancel(input);
metrics.stop();
enb->stop();
cout << "--- exiting ---" << endl;
exit(0);
}
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