261 lines
6.6 KiB
C
261 lines
6.6 KiB
C
/**
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* @file ptp4l.c
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* @brief PTP Boundary Clock or Transparent Clock main program
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* @note Copyright (C) 2011 Richard Cochran <richardcochran@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "clock.h"
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#include "config.h"
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#include "ntpshm.h"
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#include "pi.h"
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#include "print.h"
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#include "raw.h"
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#include "sk.h"
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#include "transport.h"
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#include "udp6.h"
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#include "uds.h"
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#include "util.h"
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#include "version.h"
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static void usage(char *progname)
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{
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fprintf(stderr,
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"\nusage: %s [options]\n\n"
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" Delay Mechanism\n\n"
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" -A Auto, starting with E2E\n"
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" -E E2E, delay request-response (default)\n"
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" -P P2P, peer delay mechanism\n\n"
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" Network Transport\n\n"
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" -2 IEEE 802.3\n"
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" -4 UDP IPV4 (default)\n"
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" -6 UDP IPV6\n\n"
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" Time Stamping\n\n"
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" -H HARDWARE (default)\n"
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" -S SOFTWARE\n"
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" -L LEGACY HW\n\n"
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" Other Options\n\n"
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" -f [file] read configuration from 'file'\n"
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" -i [dev] interface device to use, for example 'eth0'\n"
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" (may be specified multiple times)\n"
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" -p [dev] Clock device to use, default auto\n"
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" (ignored for SOFTWARE/LEGACY HW time stamping)\n"
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" -s slave only mode (overrides configuration file)\n"
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" -l [num] set the logging level to 'num'\n"
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" -m print messages to stdout\n"
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" -q do not print messages to the syslog\n"
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" -v prints the software version and exits\n"
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" -h prints this message and exits\n"
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"\n",
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progname);
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}
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int main(int argc, char *argv[])
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{
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char *config = NULL, *req_phc = NULL, *progname;
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enum clock_type type = CLOCK_TYPE_ORDINARY;
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int c, err = -1, index, print_level;
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struct clock *clock = NULL;
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struct option *opts;
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struct config *cfg;
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if (handle_term_signals())
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return -1;
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cfg = config_create();
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if (!cfg) {
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return -1;
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}
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opts = config_long_options(cfg);
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/* Process the command line arguments. */
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progname = strrchr(argv[0], '/');
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progname = progname ? 1+progname : argv[0];
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while (EOF != (c = getopt_long(argc, argv, "AEP246HSLf:i:p:sl:mqvh",
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opts, &index))) {
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switch (c) {
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case 0:
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if (config_parse_option(cfg, opts[index].name, optarg))
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goto out;
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break;
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case 'A':
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if (config_set_int(cfg, "delay_mechanism", DM_AUTO))
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goto out;
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break;
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case 'E':
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if (config_set_int(cfg, "delay_mechanism", DM_E2E))
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goto out;
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break;
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case 'P':
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if (config_set_int(cfg, "delay_mechanism", DM_P2P))
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goto out;
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break;
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case '2':
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if (config_set_int(cfg, "network_transport",
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TRANS_IEEE_802_3))
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goto out;
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break;
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case '4':
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if (config_set_int(cfg, "network_transport",
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TRANS_UDP_IPV4))
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goto out;
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break;
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case '6':
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if (config_set_int(cfg, "network_transport",
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TRANS_UDP_IPV6))
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goto out;
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break;
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case 'H':
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if (config_set_int(cfg, "time_stamping", TS_HARDWARE))
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goto out;
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break;
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case 'S':
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if (config_set_int(cfg, "time_stamping", TS_SOFTWARE))
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goto out;
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break;
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case 'L':
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if (config_set_int(cfg, "time_stamping", TS_LEGACY_HW))
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goto out;
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break;
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case 'f':
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config = optarg;
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break;
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case 'i':
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if (!config_create_interface(optarg, cfg))
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goto out;
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break;
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case 'p':
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req_phc = optarg;
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break;
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case 's':
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if (config_set_int(cfg, "slaveOnly", 1)) {
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goto out;
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}
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break;
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case 'l':
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if (get_arg_val_i(c, optarg, &print_level,
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PRINT_LEVEL_MIN, PRINT_LEVEL_MAX))
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goto out;
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config_set_int(cfg, "logging_level", print_level);
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break;
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case 'm':
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config_set_int(cfg, "verbose", 1);
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break;
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case 'q':
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config_set_int(cfg, "use_syslog", 0);
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break;
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case 'v':
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version_show(stdout);
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return 0;
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case 'h':
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usage(progname);
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return 0;
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case '?':
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usage(progname);
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goto out;
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default:
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usage(progname);
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goto out;
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}
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}
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if (config && (c = config_read(config, cfg))) {
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return c;
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}
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print_set_progname(progname);
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print_set_tag(config_get_string(cfg, NULL, "message_tag"));
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print_set_verbose(config_get_int(cfg, NULL, "verbose"));
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print_set_syslog(config_get_int(cfg, NULL, "use_syslog"));
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print_set_level(config_get_int(cfg, NULL, "logging_level"));
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assume_two_step = config_get_int(cfg, NULL, "assume_two_step");
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sk_check_fupsync = config_get_int(cfg, NULL, "check_fup_sync");
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sk_tx_timeout = config_get_int(cfg, NULL, "tx_timestamp_timeout");
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sk_hwts_filter_mode = config_get_int(cfg, NULL, "hwts_filter");
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if (config_get_int(cfg, NULL, "clock_servo") == CLOCK_SERVO_NTPSHM) {
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config_set_int(cfg, "kernel_leap", 0);
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config_set_int(cfg, "sanity_freq_limit", 0);
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}
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if (STAILQ_EMPTY(&cfg->interfaces)) {
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fprintf(stderr, "no interface specified\n");
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usage(progname);
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goto out;
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}
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type = config_get_int(cfg, NULL, "clock_type");
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switch (type) {
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case CLOCK_TYPE_ORDINARY:
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if (cfg->n_interfaces > 1) {
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type = CLOCK_TYPE_BOUNDARY;
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}
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break;
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case CLOCK_TYPE_BOUNDARY:
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if (cfg->n_interfaces < 2) {
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fprintf(stderr, "BC needs at least two interfaces\n");
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goto out;
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}
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break;
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case CLOCK_TYPE_P2P:
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if (cfg->n_interfaces < 2) {
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fprintf(stderr, "TC needs at least two interfaces\n");
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goto out;
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}
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if (DM_P2P != config_get_int(cfg, NULL, "delay_mechanism")) {
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fprintf(stderr, "P2P_TC needs P2P delay mechanism\n");
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goto out;
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}
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break;
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case CLOCK_TYPE_E2E:
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if (cfg->n_interfaces < 2) {
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fprintf(stderr, "TC needs at least two interfaces\n");
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goto out;
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}
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if (DM_E2E != config_get_int(cfg, NULL, "delay_mechanism")) {
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fprintf(stderr, "E2E_TC needs E2E delay mechanism\n");
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goto out;
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}
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break;
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case CLOCK_TYPE_MANAGEMENT:
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goto out;
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}
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clock = clock_create(type, cfg, req_phc);
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if (!clock) {
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fprintf(stderr, "failed to create a clock\n");
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goto out;
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}
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err = 0;
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while (is_running()) {
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if (clock_poll(clock))
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break;
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}
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out:
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if (clock)
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clock_destroy(clock);
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config_destroy(cfg);
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return err;
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}
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