int
main(int argc, char *argv[])
{
struct radclock_handle *handle;
struct radclock_config *conf;
int is_daemon = 0;
/* File and command line reading */
int ch;
/* Mask variable used to know which parameter to update */
uint32_t param_mask = 0;
/* PID lock file for daemon */
int daemon_pid_fd = 0;
/* Initialize PID lockfile to a default value */
const char *pid_lockfile = DAEMON_LOCK_FILE;
/* Misc */
int err;
/* turn off buffering to allow results to be seen immediately if JDEBUG*/
#ifdef WITH_JDEBUG
setvbuf(stdout, (char *)NULL, _IONBF, 0);
setvbuf(stderr, (char *)NULL, _IONBF, 0);
#endif
/*
* Register Signal handlers. We use sigaction() instead of signal() to catch
* signals. The main reason concerns the SIGHUP signal. In Linux, the
* syscalls are restarted as soon as the signal handler returns. This
* prevent pcap_breakloop() to do its job (see pcap man page). Using
* sigaction() we can overwrite the default flag to prevent this behavior
*/
sigset_t block_mask;
sigfillset (&block_mask);
struct sigaction sig_struct;
sig_struct.sa_handler = signal_handler;
sig_struct.sa_mask = block_mask;
sig_struct.sa_flags = 0;
sigaction(SIGHUP, &sig_struct, NULL); /* hangup signal (1) */
sigaction(SIGTERM, &sig_struct, NULL); /* software termination signal (15) */
sigaction(SIGUSR1, &sig_struct, NULL); /* user signal 1 (30) */
sigaction(SIGUSR2, &sig_struct, NULL); /* user signal 2 (31) */
/* Initialise verbose data to defaults */
verbose_data.handle = NULL;
verbose_data.is_daemon = 0;
verbose_data.verbose_level = 0;
verbose_data.fd = NULL;
strcpy(verbose_data.logfile, "");
pthread_mutex_init(&(verbose_data.vmutex), NULL);
/* Management of configuration options */
conf = (struct radclock_config *) malloc(sizeof(struct radclock_config));
JDEBUG_MEMORY(JDBG_MALLOC, conf);
memset(conf, 0, sizeof(struct radclock_config));
/*
* The command line arguments are given the priority and override possible
* values of the configuration file But the configuration file is parsed
* after the command line because we need to know if we are running a daemon
* or not (configuration file is different if we run a daemon or not). Use
* the param_mask variable to indicate which values have to be updated from
* the config file
*/
/* Initialize the physical parameters, and other config parameters. */
config_init(conf);
/* Init the mask we use to signal configuration updates */
param_mask = UPDMASK_NOUPD;
/* Reading the command line arguments */
while ((ch = getopt(argc, argv, "dxvhc:i:l:n:t:r:w:s:a:o:p:P:U:D:V")) != -1)
switch (ch) {
case 'x':
SET_UPDATE(param_mask, UPDMASK_SERVER_IPC);
conf->server_ipc = BOOL_OFF;
break;
case 'c':
strcpy(conf->conffile, optarg);
break;
case 'd':
is_daemon = 1;
break;
case 'l':
strcpy(conf->logfile, optarg);
break;
case 'n':
if (strlen(optarg) > MAXLINE) {
fprintf(stdout, "ERROR: parameter too long\n");
exit (1);
}
SET_UPDATE(param_mask, UPDMASK_HOSTNAME);
strcpy(conf->hostname, optarg);
break;
case 'p':
SET_UPDATE(param_mask, UPDMASK_POLLPERIOD);
if ( atoi(optarg) < RAD_MINPOLL ) {
conf->poll_period = RAD_MINPOLL;
fprintf(stdout, "Warning: Poll period too small, set to %d\n",
conf->poll_period);
}
else
conf->poll_period = atoi(optarg);
if ( conf->poll_period > RAD_MAXPOLL ) {
conf->poll_period = RAD_MAXPOLL;
fprintf(stdout, "Warning: Poll period too big, set to %d\n",
conf->poll_period);
}
break;
case 't':
if (strlen(optarg) > MAXLINE) {
fprintf(stdout, "ERROR: parameter too long\n");
exit (1);
}
SET_UPDATE(param_mask, UPDMASK_TIME_SERVER);
strcpy(conf->time_server, optarg);
break;
case 'i':
if (strlen(optarg) > MAXLINE) {
fprintf(stdout, "ERROR: parameter too long\n");
exit (1);
}
SET_UPDATE(param_mask, UPDMASK_NETWORKDEV);
strcpy(conf->network_device, optarg);
break;
case 'r':
if (strlen(optarg) > MAXLINE) {
fprintf(stdout, "ERROR: parameter too long\n");
exit (1);
}
SET_UPDATE(param_mask, UPDMASK_SYNC_IN_PCAP);
strcpy(conf->sync_in_pcap, optarg);
break;
case 'w':
if (strlen(optarg) > MAXLINE) {
fprintf(stdout, "ERROR: parameter too long\n");
exit (1);
}
SET_UPDATE(param_mask, UPDMASK_SYNC_OUT_PCAP);
strcpy(conf->sync_out_pcap, optarg);
break;
case 's':
if (strlen(optarg) > MAXLINE) {
fprintf(stdout, "ERROR: parameter too long\n");
exit (1);
}
SET_UPDATE(param_mask, UPDMASK_SYNC_IN_ASCII);
strcpy(conf->sync_in_ascii, optarg);
break;
case 'a':
if (strlen(optarg) > MAXLINE) {
fprintf(stdout, "ERROR: parameter too long\n");
exit (1);
}
SET_UPDATE(param_mask, UPDMASK_SYNC_OUT_ASCII);
strcpy(conf->sync_out_ascii, optarg);
break;
case 'o':
if (strlen(optarg) > MAXLINE) {
fprintf(stdout, "ERROR: parameter too long\n");
exit (1);
}
SET_UPDATE(param_mask, UPDMASK_CLOCK_OUT_ASCII);
strcpy(conf->clock_out_ascii, optarg);
break;
case 'P':
if (strlen(optarg) > MAXLINE) {
fprintf(stdout, "ERROR: parameter too long\n");
exit (1);
}
SET_UPDATE(param_mask, UPDMASK_PID_FILE);
pid_lockfile = optarg;
break;
case 'v':
SET_UPDATE(param_mask, UPDMASK_VERBOSE);
conf->verbose_level++;
break;
case 'U':
SET_UPDATE(param_mask, UPD_NTP_UPSTREAM_PORT);
conf->ntp_upstream_port = atoi(optarg);
break;
case 'D':
SET_UPDATE(param_mask, UPD_NTP_DOWNSTREAM_PORT);
conf->ntp_downstream_port = atoi(optarg);
break;
case 'V':
fprintf(stdout, "%s version %s\n", PACKAGE_NAME, PACKAGE_VERSION);
case 'h':
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
/* Little hack to deal with parsing of long options in the command line */
if (conf->verbose_level > 0)
SET_UPDATE(param_mask, UPDMASK_VERBOSE);
/* Create the radclock handle */
clock_handle = create_handle(conf, is_daemon);
if (!clock_handle) {
verbose(LOG_ERR, "Could not create clock handle");
return (-1);
}
handle = clock_handle;
/*
* Have not parsed the config file yet, so will have to do it again since it
* may not be the right settings. Handles config parse messages in the right
* log file though. So far clock has not been sent to init, no syscall
* registered, pass a NULL pointer to verbose.
*/
set_verbose(handle, handle->conf->verbose_level, 0);
set_logger(logger_verbose_bridge);
/* Daemonize now, so that we can open the log files and close connection to
* stdin since we parsed the command line
*/
if (handle->is_daemon) {
struct stat sb;
if (stat(RADCLOCK_RUN_DIRECTORY, &sb) < 0) {
if (mkdir(RADCLOCK_RUN_DIRECTORY, 0755) < 0) {
verbose(LOG_ERR, "Cannot create %s directory. Run as root or "
"(!daemon && !server)", RADCLOCK_RUN_DIRECTORY);
return (1);
}
}
/* Check this everytime in case something happened */
chmod(RADCLOCK_RUN_DIRECTORY, 00755);
if (!(daemonize(pid_lockfile, &daemon_pid_fd))) {
fprintf(stderr, "Error: did not manage to create the daemon\n");
exit(EXIT_FAILURE);
}
}
/*
* Retrieve configuration from the config file (write it down if it does not
* exist) That should be the only occasion when get_config() is called and
* the param_mask is not positioned to UPDMASK_NOUPD !!! Only the
* parameters not specified on the command line are updated
*/
if (!config_parse(handle->conf, ¶m_mask, handle->is_daemon))
return (0);
/*
* Now that we have the configuration to use (verbose level), let's
* initialise the verbose level to correct value
*/
set_verbose(handle, handle->conf->verbose_level, 0);
set_logger(logger_verbose_bridge);
/* Check for incompatible configurations and correct them */
if (( handle->conf->synchro_type == SYNCTYPE_SPY ) ||
( handle->conf->synchro_type == SYNCTYPE_PIGGY ))
{
if (handle->conf->server_ntp == BOOL_ON) {
verbose(LOG_ERR, "Configuration error. Disabling NTP server "
"(incompatible with spy or piggy mode).");
handle->conf->server_ntp = BOOL_OFF;
}
if ( handle->conf->adjust_sysclock == BOOL_ON )
{
verbose(LOG_ERR, "Configuration error. Disabling adjust system "
"clock (incompatible with spy or piggy mode).");
handle->conf->adjust_sysclock = BOOL_OFF;
}
}
/* Diagnosis output for the configuration used */
config_print(LOG_NOTICE, handle->conf);
/* Reinit the mask that counts updated values */
param_mask = UPDMASK_NOUPD;
// TODO extract extra checks from is_live_source and make an input fix
// function instead, would be clearer
// TODO the conf->network_device business is way too messy
/*
* Need to know if we are replaying data or not. If not, no need to create
* shared global data on the system or open a BPF. This define input to the
* init of the radclock handle
*/
if (!is_live_source(handle))
handle->run_mode = RADCLOCK_SYNC_DEAD;
else
handle->run_mode = RADCLOCK_SYNC_LIVE;
/* Init clock handle and private data */
if (handle->run_mode == RADCLOCK_SYNC_LIVE) {
err = clock_init_live(handle->clock, &handle->rad_data);
if (err) {
verbose(LOG_ERR, "Could not initialise the RADclock");
return (1);
}
}
/* Init radclock specific stuff */
err = init_handle(handle);
if (err) {
verbose(LOG_ERR, "Radclock process specific init failed.");
return (1);
}
/*
* Now 2 cases. Either we are running live or we are replaying some data.
* If we run live, we will spawn some threads and do some smart things. If
* we replay data, no need to do all of that, we access data and process it
* in the same thread.
*/
if (handle->run_mode == RADCLOCK_SYNC_DEAD) {
// TODO : manage peers better !!
struct bidir_peer peer;
/* Some basic initialisation which is required */
init_peer_stamp_queue(&peer);
peer.stamp_i = 0;
// TODO XXX Need to manage peers better !!
/* Register active peer */
handle->active_peer = (void *)&peer;
while (1) {
err = process_rawdata(handle, &peer);
if (err < 0)
break;
}
destroy_peer_stamp_queue(&peer);
}
/*
* We loop in here in case we are rehashed. Threads are (re-)created every
* time we loop in
*/
else {
while (err == 0) {
err = start_live(handle);
if (err == 0) {
if (rehash_daemon(handle, param_mask))
verbose(LOG_ERR, "SIGHUP - Failed to rehash daemon !!.");
}
}
}
// TODO: look into making the stats a separate structure. Could be much
// TODO: easier to manage
long int n_stamp;
unsigned int ref_count;
n_stamp = ((struct bidir_output *)handle->algo_output)->n_stamps;
ref_count = ((struct stampsource*)(handle->stamp_source))->ntp_stats.ref_count;
verbose(LOG_NOTICE, "%u NTP packets captured", ref_count);
verbose(LOG_NOTICE,"%ld missed NTP packets", ref_count - 2 * n_stamp);
verbose(LOG_NOTICE, "%ld valid timestamp tuples extracted", n_stamp);
/* Close output files */
close_output_stamp(handle);
/* Print out last good phat value */
verbose(LOG_NOTICE, "Last estimate of the clock source period: %12.10lg",
RAD_DATA(handle)->phat);
/* Say bye and close syslog */
verbose(LOG_NOTICE, "RADclock stopped");
if (handle->is_daemon)
closelog ();
unset_verbose();
/* Free the lock file */
if (handle->is_daemon) {
write(daemon_pid_fd, "", 0);
lockf(daemon_pid_fd, F_ULOCK, 0);
}
// TODO: all the destructors have to be re-written
destroy_source(handle, (struct stampsource *)(handle->stamp_source));
/* Clear thread stuff */
pthread_mutex_destroy(&(handle->globaldata_mutex));
pthread_mutex_destroy(&(handle->wakeup_mutex));
pthread_cond_destroy(&(handle->wakeup_cond));
/* Detach IPC shared memory if were running as IPC server. */
if (handle->conf->server_ipc == BOOL_ON)
shm_detach(handle->clock);
/* Free the clock structure. All done. */
pthread_mutex_destroy(&(handle->pcap_queue->rdb_mutex));
pthread_mutex_destroy(&(handle->ieee1588eq_queue->rdb_mutex));
free(handle->pcap_queue);
free(handle->ieee1588eq_queue);
free(handle);
handle = NULL;
clock_handle = NULL;
exit(EXIT_SUCCESS);
}
void widget_live_image::showEvent(QShowEvent* event){
QWidget::showEvent(event);
start_live();
}
