/* SPDX-License-Identifier: LGPL-2.1-or-later */ #include #include #include #include "sd-daemon.h" #include "daemon-util.h" #include "main-func.h" #include "manager.h" #include "pretty-print.h" #include "signal-util.h" #include "socket-util.h" #include "strv.h" static bool arg_quiet = false; static usec_t arg_timeout = 120 * USEC_PER_SEC; static Hashmap *arg_interfaces = NULL; static char **arg_ignore = NULL; static LinkOperationalStateRange arg_required_operstate = { _LINK_OPERSTATE_INVALID, _LINK_OPERSTATE_INVALID }; static AddressFamily arg_required_family = ADDRESS_FAMILY_NO; static bool arg_any = false; STATIC_DESTRUCTOR_REGISTER(arg_interfaces, hashmap_free_free_freep); STATIC_DESTRUCTOR_REGISTER(arg_ignore, strv_freep); static int help(void) { _cleanup_free_ char *link = NULL; int r; r = terminal_urlify_man("systemd-networkd-wait-online.service", "8", &link); if (r < 0) return log_oom(); 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[:MIN_OPERSTATE[:MAX_OPERSTATE]]\n" " Block until at least these interfaces have appeared\n" " --ignore=INTERFACE Don't take these interfaces into account\n" " -o --operational-state=MIN_OPERSTATE[:MAX_OPERSTATE]\n" " Required operational state\n" " -4 --ipv4 Requires at least one IPv4 address\n" " -6 --ipv6 Requires at least one IPv6 address\n" " --any Wait until at least one of the interfaces is online\n" " --timeout=SECS Maximum time to wait for network connectivity\n" "\nSee the %s for details.\n", program_invocation_short_name, link); return 0; } static int parse_interface_with_operstate_range(const char *str) { _cleanup_free_ char *ifname = NULL; _cleanup_free_ LinkOperationalStateRange *range = NULL; const char *p; int r; assert(str); range = new(LinkOperationalStateRange, 1); if (!range) return log_oom(); p = strchr(str, ':'); if (p) { r = parse_operational_state_range(p + 1, range); if (r < 0) log_error_errno(r, "Invalid operational state range '%s'", p + 1); ifname = strndup(optarg, p - optarg); } else { range->min = _LINK_OPERSTATE_INVALID; range->max = _LINK_OPERSTATE_INVALID; ifname = strdup(str); } if (!ifname) return log_oom(); if (!ifname_valid(ifname)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid interface name '%s'", ifname); r = hashmap_ensure_put(&arg_interfaces, &string_hash_ops, ifname, TAKE_PTR(range)); if (r == -ENOMEM) return log_oom(); if (r < 0) return log_error_errno(r, "Failed to store interface name: %m"); if (r == 0) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Interface name %s is already specified", ifname); TAKE_PTR(ifname); return 0; } static int parse_argv(int argc, char *argv[]) { enum { ARG_VERSION = 0x100, ARG_IGNORE, ARG_ANY, 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 }, { "operational-state", required_argument, NULL, 'o' }, { "ipv4", no_argument, NULL, '4' }, { "ipv6", no_argument, NULL, '6' }, { "any", no_argument, NULL, ARG_ANY }, { "timeout", required_argument, NULL, ARG_TIMEOUT }, {} }; int c, r; assert(argc >= 0); assert(argv); while ((c = getopt_long(argc, argv, "hi:qo:46", options, NULL)) >= 0) switch (c) { case 'h': help(); return 0; case 'q': arg_quiet = true; break; case ARG_VERSION: return version(); case 'i': r = parse_interface_with_operstate_range(optarg); if (r < 0) return r; break; case ARG_IGNORE: if (strv_extend(&arg_ignore, optarg) < 0) return log_oom(); break; case 'o': { LinkOperationalStateRange range; r = parse_operational_state_range(optarg, &range); if (r < 0) return log_error_errno(r, "Invalid operational state range '%s'", optarg); arg_required_operstate = range; break; } case '4': arg_required_family |= ADDRESS_FAMILY_IPV4; break; case '6': arg_required_family |= ADDRESS_FAMILY_IPV6; break; case ARG_ANY: arg_any = true; break; case ARG_TIMEOUT: r = parse_sec(optarg, &arg_timeout); if (r < 0) return r; break; case '?': return -EINVAL; default: assert_not_reached(); } return 1; } static int run(int argc, char *argv[]) { _cleanup_(manager_freep) Manager *m = NULL; _unused_ _cleanup_(notify_on_cleanup) const char *notify_message = NULL; int r; log_setup(); umask(0022); r = parse_argv(argc, argv); if (r <= 0) return r; if (arg_quiet) log_set_max_level(LOG_ERR); assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0); r = manager_new(&m, arg_interfaces, arg_ignore, arg_required_operstate, arg_required_family, arg_any, arg_timeout); if (r < 0) return log_error_errno(r, "Could not create manager: %m"); if (manager_configured(m)) goto success; notify_message = notify_start("READY=1\n" "STATUS=Waiting for network connections...", "STATUS=Failed to wait for network connectivity..."); r = sd_event_loop(m->event); if (r == -ETIMEDOUT) return log_error_errno(r, "Timeout occurred while waiting for network connectivity."); if (r < 0) return log_error_errno(r, "Event loop failed: %m"); success: notify_message = "STATUS=All interfaces configured..."; return 0; } DEFINE_MAIN_FUNCTION(run);