/* SPDX-License-Identifier: LGPL-2.1-or-later */ #include #include #include #include #include #include "sd-bus.h" #include "bus-error.h" #include "bus-locator.h" #include "bus-map-properties.h" #include "bus-print-properties.h" #include "env-util.h" #include "format-table.h" #include "in-addr-util.h" #include "main-func.h" #include "pager.h" #include "parse-util.h" #include "pretty-print.h" #include "sparse-endian.h" #include "spawn-polkit-agent.h" #include "string-table.h" #include "strv.h" #include "terminal-util.h" #include "util.h" #include "verbs.h" static PagerFlags arg_pager_flags = 0; static bool arg_ask_password = true; static BusTransport arg_transport = BUS_TRANSPORT_LOCAL; static char *arg_host = NULL; static bool arg_adjust_system_clock = false; static bool arg_monitor = false; static char **arg_property = NULL; static BusPrintPropertyFlags arg_print_flags = 0; typedef struct StatusInfo { usec_t time; const char *timezone; usec_t rtc_time; bool rtc_local; bool ntp_capable; bool ntp_active; bool ntp_synced; } StatusInfo; static int print_status_info(const StatusInfo *i) { _cleanup_(table_unrefp) Table *table = NULL; const char *old_tz = NULL, *tz, *tz_colon; bool have_time = false; char a[LINE_MAX]; TableCell *cell; struct tm tm; time_t sec; size_t n; int r; assert(i); table = table_new("key", "value"); if (!table) return log_oom(); table_set_header(table, false); assert_se(cell = table_get_cell(table, 0, 0)); (void) table_set_ellipsize_percent(table, cell, 100); (void) table_set_align_percent(table, cell, 100); assert_se(cell = table_get_cell(table, 0, 1)); (void) table_set_ellipsize_percent(table, cell, 100); /* Save the old $TZ */ tz = getenv("TZ"); if (tz) old_tz = strdupa_safe(tz); /* Set the new $TZ */ tz_colon = strjoina(":", isempty(i->timezone) ? "UTC" : i->timezone); if (setenv("TZ", tz_colon, true) < 0) log_warning_errno(errno, "Failed to set TZ environment variable, ignoring: %m"); else tzset(); if (i->time != 0) { sec = (time_t) (i->time / USEC_PER_SEC); have_time = true; } else if (IN_SET(arg_transport, BUS_TRANSPORT_LOCAL, BUS_TRANSPORT_MACHINE)) { sec = time(NULL); have_time = true; } else log_warning("Could not get time from timedated and not operating locally, ignoring."); n = have_time ? strftime(a, sizeof a, "%a %Y-%m-%d %H:%M:%S %Z", localtime_r(&sec, &tm)) : 0; r = table_add_many(table, TABLE_STRING, "Local time:", TABLE_STRING, n > 0 ? a : "n/a"); if (r < 0) return table_log_add_error(r); n = have_time ? strftime(a, sizeof a, "%a %Y-%m-%d %H:%M:%S UTC", gmtime_r(&sec, &tm)) : 0; r = table_add_many(table, TABLE_STRING, "Universal time:", TABLE_STRING, n > 0 ? a : "n/a"); if (r < 0) return table_log_add_error(r); if (i->rtc_time > 0) { time_t rtc_sec; rtc_sec = (time_t) (i->rtc_time / USEC_PER_SEC); n = strftime(a, sizeof a, "%a %Y-%m-%d %H:%M:%S", gmtime_r(&rtc_sec, &tm)); } else n = 0; r = table_add_many(table, TABLE_STRING, "RTC time:", TABLE_STRING, n > 0 ? a : "n/a"); if (r < 0) return table_log_add_error(r); r = table_add_cell(table, NULL, TABLE_STRING, "Time zone:"); if (r < 0) return table_log_add_error(r); n = have_time ? strftime(a, sizeof a, "%Z, %z", localtime_r(&sec, &tm)) : 0; r = table_add_cell_stringf(table, NULL, "%s (%s)", strna(i->timezone), n > 0 ? a : "n/a"); if (r < 0) return table_log_add_error(r); /* Restore the $TZ */ r = set_unset_env("TZ", old_tz, true); if (r < 0) log_warning_errno(r, "Failed to set TZ environment variable, ignoring: %m"); else tzset(); r = table_add_many(table, TABLE_STRING, "System clock synchronized:", TABLE_BOOLEAN, i->ntp_synced, TABLE_STRING, "NTP service:", TABLE_STRING, i->ntp_capable ? (i->ntp_active ? "active" : "inactive") : "n/a", TABLE_STRING, "RTC in local TZ:", TABLE_BOOLEAN, i->rtc_local); if (r < 0) return table_log_add_error(r); r = table_print(table, NULL); if (r < 0) return table_log_print_error(r); if (i->rtc_local) printf("\n%s" "Warning: The system is configured to read the RTC time in the local time zone.\n" " This mode cannot be fully supported. It will create various problems\n" " with time zone changes and daylight saving time adjustments. The RTC\n" " time is never updated, it relies on external facilities to maintain it.\n" " If at all possible, use RTC in UTC by calling\n" " 'timedatectl set-local-rtc 0'.%s\n", ansi_highlight(), ansi_normal()); return 0; } static int show_status(int argc, char **argv, void *userdata) { StatusInfo info = {}; static const struct bus_properties_map map[] = { { "Timezone", "s", NULL, offsetof(StatusInfo, timezone) }, { "LocalRTC", "b", NULL, offsetof(StatusInfo, rtc_local) }, { "NTP", "b", NULL, offsetof(StatusInfo, ntp_active) }, { "CanNTP", "b", NULL, offsetof(StatusInfo, ntp_capable) }, { "NTPSynchronized", "b", NULL, offsetof(StatusInfo, ntp_synced) }, { "TimeUSec", "t", NULL, offsetof(StatusInfo, time) }, { "RTCTimeUSec", "t", NULL, offsetof(StatusInfo, rtc_time) }, {} }; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; sd_bus *bus = userdata; int r; assert(bus); r = bus_map_all_properties(bus, "org.freedesktop.timedate1", "/org/freedesktop/timedate1", map, BUS_MAP_BOOLEAN_AS_BOOL, &error, &m, &info); if (r < 0) return log_error_errno(r, "Failed to query server: %s", bus_error_message(&error, r)); return print_status_info(&info); } static int show_properties(int argc, char **argv, void *userdata) { sd_bus *bus = userdata; int r; assert(bus); r = bus_print_all_properties(bus, "org.freedesktop.timedate1", "/org/freedesktop/timedate1", NULL, arg_property, arg_print_flags, NULL); if (r < 0) return bus_log_parse_error(r); return 0; } static int set_time(int argc, char **argv, void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; bool relative = false, interactive = arg_ask_password; sd_bus *bus = userdata; usec_t t; int r; polkit_agent_open_if_enabled(arg_transport, arg_ask_password); r = parse_timestamp(argv[1], &t); if (r < 0) return log_error_errno(r, "Failed to parse time specification '%s': %m", argv[1]); r = bus_call_method( bus, bus_timedate, "SetTime", &error, NULL, "xbb", (int64_t) t, relative, interactive); if (r < 0) return log_error_errno(r, "Failed to set time: %s", bus_error_message(&error, r)); return 0; } static int set_timezone(int argc, char **argv, void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; sd_bus *bus = userdata; int r; polkit_agent_open_if_enabled(arg_transport, arg_ask_password); r = bus_call_method(bus, bus_timedate, "SetTimezone", &error, NULL, "sb", argv[1], arg_ask_password); if (r < 0) return log_error_errno(r, "Failed to set time zone: %s", bus_error_message(&error, r)); return 0; } static int set_local_rtc(int argc, char **argv, void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; sd_bus *bus = userdata; int r, b; polkit_agent_open_if_enabled(arg_transport, arg_ask_password); b = parse_boolean(argv[1]); if (b < 0) return log_error_errno(b, "Failed to parse local RTC setting '%s': %m", argv[1]); r = bus_call_method( bus, bus_timedate, "SetLocalRTC", &error, NULL, "bbb", b, arg_adjust_system_clock, arg_ask_password); if (r < 0) return log_error_errno(r, "Failed to set local RTC: %s", bus_error_message(&error, r)); return 0; } static int set_ntp(int argc, char **argv, void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; sd_bus *bus = userdata; int b, r; polkit_agent_open_if_enabled(arg_transport, arg_ask_password); b = parse_boolean(argv[1]); if (b < 0) return log_error_errno(b, "Failed to parse NTP setting '%s': %m", argv[1]); r = bus_call_method(bus, bus_timedate, "SetNTP", &error, NULL, "bb", b, arg_ask_password); if (r < 0) return log_error_errno(r, "Failed to set ntp: %s", bus_error_message(&error, r)); return 0; } static int list_timezones(int argc, char **argv, void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; sd_bus *bus = userdata; _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; int r; _cleanup_strv_free_ char **zones = NULL; r = bus_call_method(bus, bus_timedate, "ListTimezones", &error, &reply, NULL); if (r < 0) return log_error_errno(r, "Failed to request list of time zones: %s", bus_error_message(&error, r)); r = sd_bus_message_read_strv(reply, &zones); if (r < 0) return bus_log_parse_error(r); pager_open(arg_pager_flags); strv_print(zones); return 0; } typedef struct NTPStatusInfo { const char *server_name; char *server_address; usec_t poll_interval, poll_max, poll_min; usec_t root_distance_max; uint32_t leap, version, mode, stratum; int32_t precision; usec_t root_delay, root_dispersion; union { char str[5]; uint32_t val; } reference; usec_t origin, recv, trans, dest; bool spike; uint64_t packet_count; usec_t jitter; int64_t freq; } NTPStatusInfo; static void ntp_status_info_clear(NTPStatusInfo *p) { p->server_address = mfree(p->server_address); } static const char * const ntp_leap_table[4] = { [0] = "normal", [1] = "last minute of the day has 61 seconds", [2] = "last minute of the day has 59 seconds", [3] = "not synchronized", }; DISABLE_WARNING_TYPE_LIMITS; DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(ntp_leap, uint32_t); REENABLE_WARNING; static int print_ntp_status_info(NTPStatusInfo *i) { usec_t delay, t14, t23, offset, root_distance; _cleanup_(table_unrefp) Table *table = NULL; bool offset_sign; TableCell *cell; int r; assert(i); table = table_new("key", "value"); if (!table) return log_oom(); table_set_header(table, false); assert_se(cell = table_get_cell(table, 0, 0)); (void) table_set_ellipsize_percent(table, cell, 100); (void) table_set_align_percent(table, cell, 100); assert_se(cell = table_get_cell(table, 0, 1)); (void) table_set_ellipsize_percent(table, cell, 100); /* * "Timestamp Name ID When Generated * ------------------------------------------------------------ * Originate Timestamp T1 time request sent by client * Receive Timestamp T2 time request received by server * Transmit Timestamp T3 time reply sent by server * Destination Timestamp T4 time reply received by client * * The round-trip delay, d, and system clock offset, t, are defined as: * d = (T4 - T1) - (T3 - T2) t = ((T2 - T1) + (T3 - T4)) / 2" */ r = table_add_cell(table, NULL, TABLE_STRING, "Server:"); if (r < 0) return table_log_add_error(r); r = table_add_cell_stringf(table, NULL, "%s (%s)", strna(i->server_address), strna(i->server_name)); if (r < 0) return table_log_add_error(r); r = table_add_cell(table, NULL, TABLE_STRING, "Poll interval:"); if (r < 0) return table_log_add_error(r); r = table_add_cell_stringf(table, NULL, "%s (min: %s; max %s)", FORMAT_TIMESPAN(i->poll_interval, 0), FORMAT_TIMESPAN(i->poll_min, 0), FORMAT_TIMESPAN(i->poll_max, 0)); if (r < 0) return table_log_add_error(r); if (i->packet_count == 0) { r = table_add_many(table, TABLE_STRING, "Packet count:", TABLE_STRING, "0"); if (r < 0) return table_log_add_error(r); r = table_print(table, NULL); if (r < 0) return table_log_print_error(r); return 0; } if (i->dest < i->origin || i->trans < i->recv || i->dest - i->origin < i->trans - i->recv) { log_error("Invalid NTP response"); r = table_print(table, NULL); if (r < 0) return table_log_print_error(r); return 0; } delay = (i->dest - i->origin) - (i->trans - i->recv); t14 = i->origin + i->dest; t23 = i->recv + i->trans; offset_sign = t14 < t23; offset = (offset_sign ? t23 - t14 : t14 - t23) / 2; root_distance = i->root_delay / 2 + i->root_dispersion; r = table_add_many(table, TABLE_STRING, "Leap:", TABLE_STRING, ntp_leap_to_string(i->leap), TABLE_STRING, "Version:", TABLE_UINT32, i->version, TABLE_STRING, "Stratum:", TABLE_UINT32, i->stratum, TABLE_STRING, "Reference:"); if (r < 0) return table_log_add_error(r); if (i->stratum <= 1) r = table_add_cell(table, NULL, TABLE_STRING, i->reference.str); else r = table_add_cell_stringf(table, NULL, "%" PRIX32, be32toh(i->reference.val)); if (r < 0) return table_log_add_error(r); r = table_add_cell(table, NULL, TABLE_STRING, "Precision:"); if (r < 0) return table_log_add_error(r); r = table_add_cell_stringf(table, NULL, "%s (%" PRIi32 ")", FORMAT_TIMESPAN(DIV_ROUND_UP((nsec_t) (exp2(i->precision) * NSEC_PER_SEC), NSEC_PER_USEC), 0), i->precision); if (r < 0) return table_log_add_error(r); r = table_add_cell(table, NULL, TABLE_STRING, "Root distance:"); if (r < 0) return table_log_add_error(r); r = table_add_cell_stringf(table, NULL, "%s (max: %s)", FORMAT_TIMESPAN(root_distance, 0), FORMAT_TIMESPAN(i->root_distance_max, 0)); if (r < 0) return table_log_add_error(r); r = table_add_cell(table, NULL, TABLE_STRING, "Offset:"); if (r < 0) return table_log_add_error(r); r = table_add_cell_stringf(table, NULL, "%s%s", offset_sign ? "+" : "-", FORMAT_TIMESPAN(offset, 0)); if (r < 0) return table_log_add_error(r); r = table_add_many(table, TABLE_STRING, "Delay:", TABLE_STRING, FORMAT_TIMESPAN(delay, 0), TABLE_STRING, "Jitter:", TABLE_STRING, FORMAT_TIMESPAN(i->jitter, 0), TABLE_STRING, "Packet count:", TABLE_UINT64, i->packet_count); if (r < 0) return table_log_add_error(r); if (!i->spike) { r = table_add_cell(table, NULL, TABLE_STRING, "Frequency:"); if (r < 0) return table_log_add_error(r); r = table_add_cell_stringf(table, NULL, "%+.3fppm", (double) i->freq / 0x10000); if (r < 0) return table_log_add_error(r); } r = table_print(table, NULL); if (r < 0) return table_log_print_error(r); return 0; } static int map_server_address(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) { char **p = (char **) userdata; const void *d; int family, r; size_t sz; assert(p); r = sd_bus_message_enter_container(m, 'r', "iay"); if (r < 0) return r; r = sd_bus_message_read(m, "i", &family); if (r < 0) return r; r = sd_bus_message_read_array(m, 'y', &d, &sz); if (r < 0) return r; r = sd_bus_message_exit_container(m); if (r < 0) return r; if (sz == 0 && family == AF_UNSPEC) { *p = mfree(*p); return 0; } if (!IN_SET(family, AF_INET, AF_INET6)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Unknown address family %i", family); if (sz != FAMILY_ADDRESS_SIZE(family)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid address size"); r = in_addr_to_string(family, d, p); if (r < 0) return r; return 0; } static int map_ntp_message(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) { NTPStatusInfo *p = userdata; const void *d; size_t sz; int32_t b; int r; assert(p); r = sd_bus_message_enter_container(m, 'r', "uuuuittayttttbtt"); if (r < 0) return r; r = sd_bus_message_read(m, "uuuuitt", &p->leap, &p->version, &p->mode, &p->stratum, &p->precision, &p->root_delay, &p->root_dispersion); if (r < 0) return r; r = sd_bus_message_read_array(m, 'y', &d, &sz); if (r < 0) return r; r = sd_bus_message_read(m, "ttttbtt", &p->origin, &p->recv, &p->trans, &p->dest, &b, &p->packet_count, &p->jitter); if (r < 0) return r; r = sd_bus_message_exit_container(m); if (r < 0) return r; if (sz != 4) return -EINVAL; memcpy(p->reference.str, d, sz); p->spike = b; return 0; } static int show_timesync_status_once(sd_bus *bus) { static const struct bus_properties_map map_timesync[] = { { "ServerName", "s", NULL, offsetof(NTPStatusInfo, server_name) }, { "ServerAddress", "(iay)", map_server_address, offsetof(NTPStatusInfo, server_address) }, { "PollIntervalUSec", "t", NULL, offsetof(NTPStatusInfo, poll_interval) }, { "PollIntervalMinUSec", "t", NULL, offsetof(NTPStatusInfo, poll_min) }, { "PollIntervalMaxUSec", "t", NULL, offsetof(NTPStatusInfo, poll_max) }, { "RootDistanceMaxUSec", "t", NULL, offsetof(NTPStatusInfo, root_distance_max) }, { "NTPMessage", "(uuuuittayttttbtt)", map_ntp_message, 0 }, { "Frequency", "x", NULL, offsetof(NTPStatusInfo, freq) }, {} }; _cleanup_(ntp_status_info_clear) NTPStatusInfo info = {}; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; int r; assert(bus); r = bus_map_all_properties(bus, "org.freedesktop.timesync1", "/org/freedesktop/timesync1", map_timesync, BUS_MAP_BOOLEAN_AS_BOOL, &error, &m, &info); if (r < 0) return log_error_errno(r, "Failed to query server: %s", bus_error_message(&error, r)); if (arg_monitor && !terminal_is_dumb()) fputs(ANSI_HOME_CLEAR, stdout); print_ntp_status_info(&info); return 0; } static int on_properties_changed(sd_bus_message *m, void *userdata, sd_bus_error *error) { const char *name; int r; assert(m); r = sd_bus_message_read(m, "s", &name); if (r < 0) return bus_log_parse_error(r); if (!streq_ptr(name, "org.freedesktop.timesync1.Manager")) return 0; return show_timesync_status_once(sd_bus_message_get_bus(m)); } static int show_timesync_status(int argc, char **argv, void *userdata) { _cleanup_(sd_event_unrefp) sd_event *event = NULL; sd_bus *bus = userdata; int r; assert(bus); r = show_timesync_status_once(bus); if (r < 0) return r; if (!arg_monitor) return 0; r = sd_event_default(&event); if (r < 0) return log_error_errno(r, "Failed to get event loop: %m"); r = sd_bus_match_signal(bus, NULL, "org.freedesktop.timesync1", "/org/freedesktop/timesync1", "org.freedesktop.DBus.Properties", "PropertiesChanged", on_properties_changed, NULL); if (r < 0) return log_error_errno(r, "Failed to request match for PropertiesChanged signal: %m"); r = sd_bus_attach_event(bus, event, SD_EVENT_PRIORITY_NORMAL); if (r < 0) return log_error_errno(r, "Failed to attach bus to event loop: %m"); r = sd_event_loop(event); if (r < 0) return log_error_errno(r, "Failed to run event loop: %m"); return 0; } static int print_timesync_property(const char *name, const char *expected_value, sd_bus_message *m, BusPrintPropertyFlags flags) { char type; const char *contents; int r; assert(name); assert(m); r = sd_bus_message_peek_type(m, &type, &contents); if (r < 0) return r; switch (type) { case SD_BUS_TYPE_STRUCT: if (streq(name, "NTPMessage")) { _cleanup_(ntp_status_info_clear) NTPStatusInfo i = {}; r = map_ntp_message(NULL, NULL, m, NULL, &i); if (r < 0) return r; if (i.packet_count == 0) return 1; if (!FLAGS_SET(flags, BUS_PRINT_PROPERTY_ONLY_VALUE)) { fputs(name, stdout); fputc('=', stdout); } printf("{ Leap=%u, Version=%u, Mode=%u, Stratum=%u, Precision=%i,", i.leap, i.version, i.mode, i.stratum, i.precision); printf(" RootDelay=%s,", FORMAT_TIMESPAN(i.root_delay, 0)); printf(" RootDispersion=%s,", FORMAT_TIMESPAN(i.root_dispersion, 0)); if (i.stratum == 1) printf(" Reference=%s,", i.reference.str); else printf(" Reference=%" PRIX32 ",", be32toh(i.reference.val)); printf(" OriginateTimestamp=%s,", FORMAT_TIMESTAMP(i.origin)); printf(" ReceiveTimestamp=%s,", FORMAT_TIMESTAMP(i.recv)); printf(" TransmitTimestamp=%s,", FORMAT_TIMESTAMP(i.trans)); printf(" DestinationTimestamp=%s,", FORMAT_TIMESTAMP(i.dest)); printf(" Ignored=%s, PacketCount=%" PRIu64 ",", yes_no(i.spike), i.packet_count); printf(" Jitter=%s }\n", FORMAT_TIMESPAN(i.jitter, 0)); return 1; } else if (streq(name, "ServerAddress")) { _cleanup_free_ char *str = NULL; r = map_server_address(NULL, NULL, m, NULL, &str); if (r < 0) return r; bus_print_property_value(name, expected_value, flags, str); return 1; } break; } return 0; } static int show_timesync(int argc, char **argv, void *userdata) { sd_bus *bus = userdata; int r; assert(bus); r = bus_print_all_properties(bus, "org.freedesktop.timesync1", "/org/freedesktop/timesync1", print_timesync_property, arg_property, arg_print_flags, NULL); if (r < 0) return bus_log_parse_error(r); return 0; } static int parse_ifindex_bus(sd_bus *bus, const char *str) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; int32_t i; int r; assert(bus); assert(str); r = parse_ifindex(str); if (r > 0) return r; assert(r < 0); r = bus_call_method(bus, bus_network_mgr, "GetLinkByName", &error, &reply, "s", str); if (r < 0) return log_error_errno(r, "Failed to get ifindex of interfaces %s: %s", str, bus_error_message(&error, r)); r = sd_bus_message_read(reply, "io", &i, NULL); if (r < 0) return bus_log_create_error(r); return i; } static int verb_ntp_servers(int argc, char **argv, void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL; sd_bus *bus = userdata; int ifindex, r; assert(bus); ifindex = parse_ifindex_bus(bus, argv[1]); if (ifindex < 0) return ifindex; polkit_agent_open_if_enabled(arg_transport, arg_ask_password); r = bus_message_new_method_call(bus, &req, bus_network_mgr, "SetLinkNTP"); if (r < 0) return bus_log_create_error(r); r = sd_bus_message_append(req, "i", ifindex); if (r < 0) return bus_log_create_error(r); r = sd_bus_message_append_strv(req, argv + 2); if (r < 0) return bus_log_create_error(r); r = sd_bus_call(bus, req, 0, &error, NULL); if (r < 0) return log_error_errno(r, "Failed to set NTP servers: %s", bus_error_message(&error, r)); return 0; } static int verb_revert(int argc, char **argv, void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; sd_bus *bus = userdata; int ifindex, r; assert(bus); ifindex = parse_ifindex_bus(bus, argv[1]); if (ifindex < 0) return ifindex; polkit_agent_open_if_enabled(arg_transport, arg_ask_password); r = bus_call_method(bus, bus_network_mgr, "RevertLinkNTP", &error, NULL, "i", ifindex); if (r < 0) return log_error_errno(r, "Failed to revert interface configuration: %s", bus_error_message(&error, r)); return 0; } static int help(void) { _cleanup_free_ char *link = NULL; int r; r = terminal_urlify_man("timedatectl", "1", &link); if (r < 0) return log_oom(); printf("%s [OPTIONS...] COMMAND ...\n" "\n%sQuery or change system time and date settings.%s\n" "\nCommands:\n" " status Show current time settings\n" " show Show properties of systemd-timedated\n" " set-time TIME Set system time\n" " set-timezone ZONE Set system time zone\n" " list-timezones Show known time zones\n" " set-local-rtc BOOL Control whether RTC is in local time\n" " set-ntp BOOL Enable or disable network time synchronization\n" "\nsystemd-timesyncd Commands:\n" " timesync-status Show status of systemd-timesyncd\n" " show-timesync Show properties of systemd-timesyncd\n" "\nOptions:\n" " -h --help Show this help message\n" " --version Show package version\n" " --no-pager Do not pipe output into a pager\n" " --no-ask-password Do not prompt for password\n" " -H --host=[USER@]HOST Operate on remote host\n" " -M --machine=CONTAINER Operate on local container\n" " --adjust-system-clock Adjust system clock when changing local RTC mode\n" " --monitor Monitor status of systemd-timesyncd\n" " -p --property=NAME Show only properties by this name\n" " -a --all Show all properties, including empty ones\n" " --value When showing properties, only print the value\n" "\nSee the %s for details.\n", program_invocation_short_name, ansi_highlight(), ansi_normal(), link); return 0; } static int verb_help(int argc, char **argv, void *userdata) { return help(); } static int parse_argv(int argc, char *argv[]) { enum { ARG_VERSION = 0x100, ARG_NO_PAGER, ARG_ADJUST_SYSTEM_CLOCK, ARG_NO_ASK_PASSWORD, ARG_MONITOR, ARG_VALUE, }; static const struct option options[] = { { "help", no_argument, NULL, 'h' }, { "version", no_argument, NULL, ARG_VERSION }, { "no-pager", no_argument, NULL, ARG_NO_PAGER }, { "host", required_argument, NULL, 'H' }, { "machine", required_argument, NULL, 'M' }, { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD }, { "adjust-system-clock", no_argument, NULL, ARG_ADJUST_SYSTEM_CLOCK }, { "monitor", no_argument, NULL, ARG_MONITOR }, { "property", required_argument, NULL, 'p' }, { "all", no_argument, NULL, 'a' }, { "value", no_argument, NULL, ARG_VALUE }, {} }; int c, r; assert(argc >= 0); assert(argv); while ((c = getopt_long(argc, argv, "hH:M:p:a", options, NULL)) >= 0) switch (c) { case 'h': return help(); case ARG_VERSION: return version(); case 'H': arg_transport = BUS_TRANSPORT_REMOTE; arg_host = optarg; break; case 'M': arg_transport = BUS_TRANSPORT_MACHINE; arg_host = optarg; break; case ARG_NO_ASK_PASSWORD: arg_ask_password = false; break; case ARG_ADJUST_SYSTEM_CLOCK: arg_adjust_system_clock = true; break; case ARG_NO_PAGER: arg_pager_flags |= PAGER_DISABLE; break; case ARG_MONITOR: arg_monitor = true; break; case 'p': { r = strv_extend(&arg_property, optarg); if (r < 0) return log_oom(); /* If the user asked for a particular * property, show it to them, even if it is * empty. */ SET_FLAG(arg_print_flags, BUS_PRINT_PROPERTY_SHOW_EMPTY, true); break; } case 'a': SET_FLAG(arg_print_flags, BUS_PRINT_PROPERTY_SHOW_EMPTY, true); break; case ARG_VALUE: SET_FLAG(arg_print_flags, BUS_PRINT_PROPERTY_ONLY_VALUE, true); break; case '?': return -EINVAL; default: assert_not_reached(); } return 1; } static int timedatectl_main(sd_bus *bus, int argc, char *argv[]) { static const Verb verbs[] = { { "status", VERB_ANY, 1, VERB_DEFAULT, show_status }, { "show", VERB_ANY, 1, 0, show_properties }, { "set-time", 2, 2, 0, set_time }, { "set-timezone", 2, 2, 0, set_timezone }, { "list-timezones", VERB_ANY, 1, 0, list_timezones }, { "set-local-rtc", 2, 2, 0, set_local_rtc }, { "set-ntp", 2, 2, 0, set_ntp }, { "timesync-status", VERB_ANY, 1, 0, show_timesync_status }, { "show-timesync", VERB_ANY, 1, 0, show_timesync }, { "ntp-servers", 3, VERB_ANY, 0, verb_ntp_servers }, { "revert", 2, 2, 0, verb_revert }, { "help", VERB_ANY, VERB_ANY, 0, verb_help }, /* Not documented, but supported since it is created. */ {} }; return dispatch_verb(argc, argv, verbs, bus); } static int run(int argc, char *argv[]) { _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; int r; setlocale(LC_ALL, ""); log_setup(); r = parse_argv(argc, argv); if (r <= 0) return r; r = bus_connect_transport(arg_transport, arg_host, false, &bus); if (r < 0) return bus_log_connect_error(r, arg_transport); return timedatectl_main(bus, argc, argv); } DEFINE_MAIN_FUNCTION(run);