225 lines
7.2 KiB
C
225 lines
7.2 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#include <getopt.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include "sd-daemon.h"
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#include "daemon-util.h"
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#include "main-func.h"
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#include "manager.h"
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#include "pretty-print.h"
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#include "signal-util.h"
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#include "socket-util.h"
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#include "strv.h"
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static bool arg_quiet = false;
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static usec_t arg_timeout = 120 * USEC_PER_SEC;
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static Hashmap *arg_interfaces = NULL;
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static char **arg_ignore = NULL;
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static LinkOperationalStateRange arg_required_operstate = { _LINK_OPERSTATE_INVALID, _LINK_OPERSTATE_INVALID };
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static bool arg_any = false;
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STATIC_DESTRUCTOR_REGISTER(arg_interfaces, hashmap_free_free_freep);
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STATIC_DESTRUCTOR_REGISTER(arg_ignore, strv_freep);
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static int help(void) {
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_cleanup_free_ char *link = NULL;
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int r;
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r = terminal_urlify_man("systemd-networkd-wait-online.service", "8", &link);
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if (r < 0)
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return log_oom();
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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[:MIN_OPERSTATE[:MAX_OPERSTATE]]\n"
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" Block until at least these interfaces have appeared\n"
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" --ignore=INTERFACE Don't take these interfaces into account\n"
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" -o --operational-state=MIN_OPERSTATE[:MAX_OPERSTATE]\n"
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" Required operational state\n"
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" --any Wait until at least one of the interfaces is online\n"
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" --timeout=SECS Maximum time to wait for network connectivity\n"
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"\nSee the %s for details.\n"
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, program_invocation_short_name
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, link
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);
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return 0;
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}
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static int parse_interface_with_operstate_range(const char *str) {
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_cleanup_free_ char *ifname = NULL;
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_cleanup_free_ LinkOperationalStateRange *range;
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const char *p;
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int r;
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assert(str);
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range = new(LinkOperationalStateRange, 1);
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if (!range)
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return log_oom();
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p = strchr(str, ':');
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if (p) {
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r = parse_operational_state_range(p + 1, range);
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if (r < 0)
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log_error_errno(r, "Invalid operational state range '%s'", p + 1);
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ifname = strndup(optarg, p - optarg);
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} else {
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range->min = _LINK_OPERSTATE_INVALID;
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range->max = _LINK_OPERSTATE_INVALID;
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ifname = strdup(str);
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}
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if (!ifname)
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return log_oom();
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if (!ifname_valid(ifname))
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return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
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"Invalid interface name '%s'", ifname);
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r = hashmap_ensure_allocated(&arg_interfaces, &string_hash_ops);
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if (r < 0)
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return log_oom();
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r = hashmap_put(arg_interfaces, ifname, TAKE_PTR(range));
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if (r < 0)
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return log_error_errno(r, "Failed to store interface name: %m");
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if (r == 0)
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return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
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"Interface name %s is already specified", ifname);
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TAKE_PTR(ifname);
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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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ARG_IGNORE,
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ARG_ANY,
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ARG_TIMEOUT,
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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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{ "ignore", required_argument, NULL, ARG_IGNORE },
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{ "operational-state", required_argument, NULL, 'o' },
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{ "any", no_argument, NULL, ARG_ANY },
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{ "timeout", required_argument, NULL, ARG_TIMEOUT },
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{}
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};
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int c, r;
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assert(argc >= 0);
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assert(argv);
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while ((c = getopt_long(argc, argv, "hi:qo:", options, NULL)) >= 0)
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switch (c) {
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case 'h':
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help();
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return 0;
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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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return version();
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case 'i':
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r = parse_interface_with_operstate_range(optarg);
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if (r < 0)
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return r;
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break;
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case ARG_IGNORE:
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if (strv_extend(&arg_ignore, optarg) < 0)
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return log_oom();
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break;
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case 'o': {
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LinkOperationalStateRange range;
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r = parse_operational_state_range(optarg, &range);
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if (r < 0)
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return log_error_errno(r, "Invalid operational state range '%s'", optarg);
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arg_required_operstate = range;
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break;
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}
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case ARG_ANY:
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arg_any = true;
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break;
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case ARG_TIMEOUT:
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r = parse_sec(optarg, &arg_timeout);
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if (r < 0)
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return r;
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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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return 1;
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}
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static int run(int argc, char *argv[]) {
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_cleanup_(manager_freep) Manager *m = NULL;
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_cleanup_(notify_on_cleanup) const char *notify_message = NULL;
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int r;
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log_setup_service();
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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_ERR);
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assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0);
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r = manager_new(&m, arg_interfaces, arg_ignore, arg_required_operstate, arg_any, arg_timeout);
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if (r < 0)
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return log_error_errno(r, "Could not create manager: %m");
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if (manager_configured(m))
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goto success;
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notify_message = notify_start("READY=1\n"
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"STATUS=Waiting for network connections...",
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"STATUS=Failed to wait for network connectivity...");
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r = sd_event_loop(m->event);
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if (r < 0)
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return log_error_errno(r, "Event loop failed: %m");
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success:
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notify_message = "STATUS=All interfaces configured...";
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return 0;
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}
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DEFINE_MAIN_FUNCTION(run);
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