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/***
This file is part of systemd.
Copyright 2013 Tom Gundersen <teg@jklm.no>
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <getopt.h>
#include "sd-daemon.h"
#include "manager.h"
#include "signal-util.h"
#include "strv.h"
static bool arg_quiet = false;
static usec_t arg_timeout = 120 * USEC_PER_SEC;
static char **arg_interfaces = NULL;
static char **arg_ignore = NULL;
static void help(void) {
printf("%s [OPTIONS...]\n\n"
"Block until network is configured.\n\n"
" -h --help Show this help\n"
" --version Print version string\n"
" -q --quiet Do not show status information\n"
" -i --interface=INTERFACE Block until at least these interfaces have appeared\n"
" --ignore=INTERFACE Don't take these interfaces into account\n"
" --timeout=SECS Maximum time to wait for network connectivity\n"
, program_invocation_short_name);
}
static int parse_argv(int argc, char *argv[]) {
enum {
ARG_VERSION = 0x100,
ARG_IGNORE,
ARG_TIMEOUT,
};
static const struct option options[] = {
{ "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, ARG_VERSION },
{ "quiet", no_argument, NULL, 'q' },
{ "interface", required_argument, NULL, 'i' },
{ "ignore", required_argument, NULL, ARG_IGNORE },
{ "timeout", required_argument, NULL, ARG_TIMEOUT },
{}
};
int c, r;
assert(argc >= 0);
assert(argv);
while ((c = getopt_long(argc, argv, "+hi:q", options, NULL)) >= 0)
switch (c) {
case 'h':
help();
return 0;
case 'q':
arg_quiet = true;
break;
case ARG_VERSION:
return version();
case 'i':
if (strv_extend(&arg_interfaces, optarg) < 0)
return log_oom();
break;
case ARG_IGNORE:
if (strv_extend(&arg_ignore, optarg) < 0)
return log_oom();
break;
case ARG_TIMEOUT:
r = parse_sec(optarg, &arg_timeout);
if (r < 0)
return r;
break;
case '?':
return -EINVAL;
default:
assert_not_reached("Unhandled option");
}
return 1;
}
int main(int argc, char *argv[]) {
_cleanup_(manager_freep) Manager *m = NULL;
int r;
log_set_target(LOG_TARGET_AUTO);
log_parse_environment();
log_open();
umask(0022);
r = parse_argv(argc, argv);
if (r <= 0)
return r;
if (arg_quiet)
log_set_max_level(LOG_WARNING);
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0);
r = manager_new(&m, arg_interfaces, arg_ignore, arg_timeout);
if (r < 0) {
log_error_errno(r, "Could not create manager: %m");
goto finish;
}
if (manager_all_configured(m)) {
r = 0;
goto finish;
}
sd_notify(false,
"READY=1\n"
"STATUS=Waiting for network connections...");
r = sd_event_loop(m->event);
if (r < 0) {
log_error_errno(r, "Event loop failed: %m");
goto finish;
}
finish:
strv_free(arg_interfaces);
strv_free(arg_ignore);
if (r >= 0) {
sd_notify(false, "STATUS=All interfaces configured...");
return EXIT_SUCCESS;
} else {
sd_notify(false, "STATUS=Failed waiting for network connectivity...");
return EXIT_FAILURE;
}
}
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