/*** 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 "networkd-wait-online.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; } }