linuxptp/ptp4l.c
Jacob Keller 490c3e22a7 ptp4l: build the interfaces from cmdline after parsing options
this patch causes interfaces to be built after the options have finished
scanning rather than during option parsing. This removes the ability to
specify on the command line separate transport, or dm modes for each port.
Instead this functionality will be added in a follow-on patch via the
configuration file

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
2012-08-21 14:30:55 +02:00

264 lines
6.7 KiB
C

/**
* @file ptp4l.c
* @brief PTP Boundary Clock main program
* @note Copyright (C) 2011 Richard Cochran <richardcochran@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "clock.h"
#include "config.h"
#include "print.h"
#include "sk.h"
#include "transport.h"
#include "util.h"
int assume_two_step;
double configured_pi_kp, configured_pi_ki; /*see pi.c*/
extern unsigned char ptp_dst_mac[]; /*see raw.c*/
extern unsigned char p2p_dst_mac[]; /*see raw.c*/
static int running = 1;
static struct config cfg_settings = {
.dds = {
.slaveOnly = FALSE,
.priority1 = 128,
.clockQuality.clockClass = 248,
.clockQuality.clockAccuracy = 0xfe,
.clockQuality.offsetScaledLogVariance = 0xffff,
.priority2 = 128,
},
.pod = {
.logAnnounceInterval = 1,
.logSyncInterval = 0,
.logMinDelayReqInterval = 0,
.logMinPdelayReqInterval = 0,
.announceReceiptTimeout = 3,
.transportSpecific = 0,
.path_trace_enabled = 0,
.follow_up_info = 0,
},
.timestamping = TS_HARDWARE,
.dm = DM_E2E,
.transport = TRANS_UDP_IPV4,
.assume_two_step = &assume_two_step,
.tx_timestamp_retries = &sk_tx_retries,
.rx_timestamp_l2only = &sk_prefer_layer2,
.pi_proportional_const = &configured_pi_kp,
.pi_integral_const = &configured_pi_ki,
.ptp_dst_mac = ptp_dst_mac,
.p2p_dst_mac = p2p_dst_mac,
.print_level = LOG_INFO,
.use_syslog = 1,
.verbose = 0,
.cfg_ignore = 0,
};
static void usage(char *progname)
{
fprintf(stderr,
"\nusage: %s [options]\n\n"
" Delay Mechanism (per interface)\n\n"
" -A Auto, starting with E2E\n"
" -E E2E, delay request-response (default)\n"
" -P P2P, peer delay mechanism\n\n"
" Network Transport (per interface)\n\n"
" -2 IEEE 802.3\n"
" -4 UDP IPV4 (default)\n"
" -6 UDP IPV6\n\n"
" Time Stamping\n\n"
" -H HARDWARE (default)\n"
" -S SOFTWARE\n"
" -L LEGACY HW\n\n"
" Other Options\n\n"
" -f [file] read configuration from 'file'\n"
" -i [dev] interface device to use, for example 'eth0'\n"
" (may be specified multiple times)\n"
" -p [dev] PTP hardware clock device to use, default auto\n"
" (ignored for SOFTWARE/LEGACY HW time stamping)\n"
" -s slave only mode (overrides configuration file)\n"
" -l [num] set the logging level to 'num'\n"
" -q do not print messages to the syslog\n"
" -v print messages to stdout\n"
" -h prints this message and exits\n"
"\n",
progname);
}
int main(int argc, char *argv[])
{
char *config = NULL, *req_phc = NULL, *progname;
int c, i;
struct interface *iface = cfg_settings.iface;
char *ports[MAX_PORTS];
int nports = 0;
int *cfg_ignore = &cfg_settings.cfg_ignore;
enum delay_mechanism *dm = &cfg_settings.dm;
enum transport_type *transport = &cfg_settings.transport;
enum timestamp_type *timestamping = &cfg_settings.timestamping;
struct clock *clock;
struct defaultDS *ds = &cfg_settings.dds;
int phc_index = -1;
/* Process the command line arguments. */
progname = strrchr(argv[0], '/');
progname = progname ? 1+progname : argv[0];
while (EOF != (c = getopt(argc, argv, "AEP246HSLf:i:p:sl:qvh"))) {
switch (c) {
case 'A':
*dm = DM_AUTO;
*cfg_ignore |= CFG_IGNORE_DM;
break;
case 'E':
*dm = DM_E2E;
*cfg_ignore |= CFG_IGNORE_DM;
break;
case 'P':
*dm = DM_P2P;
*cfg_ignore |= CFG_IGNORE_DM;
break;
case '2':
*transport = TRANS_IEEE_802_3;
*cfg_ignore |= CFG_IGNORE_TRANSPORT;
break;
case '4':
*transport = TRANS_UDP_IPV4;
*cfg_ignore |= CFG_IGNORE_TRANSPORT;
break;
case '6':
*transport = TRANS_UDP_IPV6;
*cfg_ignore |= CFG_IGNORE_TRANSPORT;
break;
case 'H':
*timestamping = TS_HARDWARE;
*cfg_ignore |= CFG_IGNORE_TIMESTAMPING;
break;
case 'S':
*timestamping = TS_SOFTWARE;
*cfg_ignore |= CFG_IGNORE_TIMESTAMPING;
break;
case 'L':
*timestamping = TS_LEGACY_HW;
*cfg_ignore |= CFG_IGNORE_TIMESTAMPING;
break;
case 'f':
config = optarg;
break;
case 'i':
ports[nports] = optarg;
nports++;
break;
case 'p':
req_phc = optarg;
break;
case 's':
ds->slaveOnly = TRUE;
ds->clockQuality.clockClass = 255;
*cfg_ignore |= CFG_IGNORE_SLAVEONLY;
break;
case 'l':
cfg_settings.print_level = atoi(optarg);
*cfg_ignore |= CFG_IGNORE_PRINT_LEVEL;
break;
case 'q':
cfg_settings.use_syslog = 0;
*cfg_ignore |= CFG_IGNORE_USE_SYSLOG;
break;
case 'v':
cfg_settings.verbose = 1;
*cfg_ignore |= CFG_IGNORE_VERBOSE;
break;
case 'h':
usage(progname);
return 0;
case '?':
usage(progname);
return -1;
default:
usage(progname);
return -1;
}
}
if (config && config_read(config, &cfg_settings)) {
fprintf(stderr, "failed to read configuration file\n");
return -1;
}
for (i = 0; i < nports; i++) {
if (config_create_interface(ports[i], &cfg_settings) < 0) {
fprintf(stderr, "too many interfaces\n");
return -1;
}
}
if (!cfg_settings.nports) {
fprintf(stderr, "no interface specified\n");
usage(progname);
return -1;
}
/* determine PHC Clock index */
if (*timestamping == TS_SOFTWARE || *timestamping == TS_LEGACY_HW) {
phc_index = -1;
} else if (req_phc) {
if (1 != sscanf(req_phc, "/dev/ptp%d", &phc_index)) {
fprintf(stderr, "bad ptp device string\n");
return -1;
}
} else if (sk_interface_phc(iface[0].name, &phc_index)) {
fprintf(stderr, "get_ts_info not supported\n"
"please specify ptp device\n");
return -1;
}
if (phc_index >= 0) {
pr_info("selected /dev/ptp%d as PTP clock", phc_index);
}
if (generate_clock_identity(&ds->clockIdentity, iface[0].name)) {
fprintf(stderr, "failed to generate a clock identity\n");
return -1;
}
print_set_verbose(cfg_settings.verbose);
print_set_syslog(cfg_settings.use_syslog);
print_set_level(cfg_settings.print_level);
clock = clock_create(phc_index, iface, cfg_settings.nports,
*timestamping, ds);
if (!clock) {
fprintf(stderr, "failed to create a clock\n");
return -1;
}
while (running) {
if (clock_poll(clock))
break;
}
return 0;
}