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Diffstat (limited to 'src/grp-network/networkd-wait-online.c')
-rw-r--r--src/grp-network/networkd-wait-online.c166
1 files changed, 166 insertions, 0 deletions
diff --git a/src/grp-network/networkd-wait-online.c b/src/grp-network/networkd-wait-online.c
new file mode 100644
index 0000000000..a08272463e
--- /dev/null
+++ b/src/grp-network/networkd-wait-online.c
@@ -0,0 +1,166 @@
+
+/***
+ 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 <systemd/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;
+ }
+}