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7de12ae764
Rather than refetching the link information on ever event, we liston to rtnl to track them. Much code stolen from resolved. This will allow us to simplify the sd-network api and don't expose information available over rtnl.
143 lines
3.9 KiB
C
143 lines
3.9 KiB
C
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/***
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This file is part of systemd.
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Copyright 2013 Tom Gundersen <teg@jklm.no>
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <getopt.h>
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#include "sd-daemon.h"
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#include "networkd-wait-online.h"
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#include "strv.h"
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#include "build.h"
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static bool arg_quiet = false;
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static char **arg_interfaces = NULL;
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static int help(void) {
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printf("%s [OPTIONS...]\n\n"
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"Block until network is configured.\n\n"
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" -h --help Show this help\n"
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" --version Print version string\n"
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" -q --quiet Do not show status information\n"
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" -i --interface=INTERFACE Block until at least these interfaces have appeared\n",
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program_invocation_short_name);
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return 0;
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}
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static int parse_argv(int argc, char *argv[]) {
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enum {
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ARG_VERSION = 0x100,
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};
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static const struct option options[] = {
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{ "help", no_argument, NULL, 'h' },
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{ "version", no_argument, NULL, ARG_VERSION },
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{ "quiet", no_argument, NULL, 'q' },
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{ "interface", required_argument, NULL, 'i' },
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{}
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};
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int c;
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assert(argc >= 0);
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assert(argv);
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while ((c = getopt_long(argc, argv, "+hq", options, NULL)) >= 0) {
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switch (c) {
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case 'h':
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return help();
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case 'q':
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arg_quiet = true;
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break;
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case ARG_VERSION:
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puts(PACKAGE_STRING);
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puts(SYSTEMD_FEATURES);
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return 0;
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case 'i':
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if (strv_extend(&arg_interfaces, optarg) < 0)
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return log_oom();
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break;
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case '?':
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return -EINVAL;
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default:
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assert_not_reached("Unhandled option");
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}
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}
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return 1;
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}
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int main(int argc, char *argv[]) {
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_cleanup_(manager_freep) Manager *m = NULL;
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int r;
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log_set_target(LOG_TARGET_AUTO);
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log_parse_environment();
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log_open();
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umask(0022);
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r = parse_argv(argc, argv);
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if (r <= 0)
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return r;
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if (arg_quiet)
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log_set_max_level(LOG_WARNING);
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assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0);
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r = manager_new(&m, arg_interfaces);
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if (r < 0) {
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log_error("Could not create manager: %s", strerror(-r));
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goto finish;
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}
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if (manager_all_configured(m)) {
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r = 0;
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goto finish;
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}
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sd_notify(false,
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"READY=1\n"
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"STATUS=Waiting for network connections...");
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r = sd_event_loop(m->event);
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if (r < 0) {
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log_error("Event loop failed: %s", strerror(-r));
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goto finish;
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}
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finish:
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sd_notify(false, "STATUS=All interfaces configured...");
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return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
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}
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