src/timedate/timedatectl.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include <getopt.h>
   4 #include <locale.h>
   5 #include <math.h>
   6 #include <stdbool.h>
   7 #include <stdlib.h>
   8
   9 #include "sd-bus.h"
  10
  11 #include "bus-error.h"
  12 #include "bus-util.h"
  13 #include "in-addr-util.h"
  14 #include "pager.h"
  15 #include "parse-util.h"
  16 #include "spawn-polkit-agent.h"
  17 #include "sparse-endian.h"
  18 #include "string-table.h"
  19 #include "strv.h"
  20 #include "terminal-util.h"
  21 #include "util.h"
  22 #include "verbs.h"
  23
  24 static bool arg_no_pager = false;
  25 static bool arg_ask_password = true;
  26 static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
  27 static char *arg_host = NULL;
  28 static bool arg_adjust_system_clock = false;
  29 static bool arg_monitor = false;
  30 static char **arg_property = NULL;
  31 static bool arg_value = false;
  32 static bool arg_all = false;
  33
  34 typedef struct StatusInfo {
  35         usec_t time;
  36         const char *timezone;
  37
  38         usec_t rtc_time;
  39         bool rtc_local;
  40
  41         bool ntp_capable;
  42         bool ntp_active;
  43         bool ntp_synced;
  44 } StatusInfo;
  45
  46 static void print_status_info(const StatusInfo *i) {
  47         const char *old_tz = NULL, *tz;
  48         bool have_time = false;
  49         char a[LINE_MAX];
  50         struct tm tm;
  51         time_t sec;
  52         size_t n;
  53         int r;
  54
  55         assert(i);
  56
  57         /* Save the old $TZ */
  58         tz = getenv("TZ");
  59         if (tz)
  60                 old_tz = strdupa(tz);
  61
  62         /* Set the new $TZ */
  63         if (setenv("TZ", isempty(i->timezone) ? "UTC" : i->timezone, true) < 0)
  64                 log_warning_errno(errno, "Failed to set TZ environment variable, ignoring: %m");
  65         else
  66                 tzset();
  67
  68         if (i->time != 0) {
  69                 sec = (time_t) (i->time / USEC_PER_SEC);
  70                 have_time = true;
  71         } else if (IN_SET(arg_transport, BUS_TRANSPORT_LOCAL, BUS_TRANSPORT_MACHINE)) {
  72                 sec = time(NULL);
  73                 have_time = true;
  74         } else
  75                 log_warning("Could not get time from timedated and not operating locally, ignoring.");
  76
  77         if (have_time) {
  78                 n = strftime(a, sizeof a, "%a %Y-%m-%d %H:%M:%S %Z", localtime_r(&sec, &tm));
  79                 printf("               Local time: %s\n", n > 0 ? a : "n/a");
  80
  81                 n = strftime(a, sizeof a, "%a %Y-%m-%d %H:%M:%S UTC", gmtime_r(&sec, &tm));
  82                 printf("           Universal time: %s\n", n > 0 ? a : "n/a");
  83         } else {
  84                 printf("               Local time: %s\n", "n/a");
  85                 printf("           Universal time: %s\n", "n/a");
  86         }
  87
  88         if (i->rtc_time > 0) {
  89                 time_t rtc_sec;
  90
  91                 rtc_sec = (time_t) (i->rtc_time / USEC_PER_SEC);
  92                 n = strftime(a, sizeof a, "%a %Y-%m-%d %H:%M:%S", gmtime_r(&rtc_sec, &tm));
  93                 printf("                 RTC time: %s\n", n > 0 ? a : "n/a");
  94         } else
  95                 printf("                 RTC time: %s\n", "n/a");
  96
  97         if (have_time)
  98                 n = strftime(a, sizeof a, "%Z, %z", localtime_r(&sec, &tm));
  99
 100         /* Restore the $TZ */
 101         if (old_tz)
 102                 r = setenv("TZ", old_tz, true);
 103         else
 104                 r = unsetenv("TZ");
 105         if (r < 0)
 106                 log_warning_errno(errno, "Failed to set TZ environment variable, ignoring: %m");
 107         else
 108                 tzset();
 109
 110         printf("                Time zone: %s (%s)\n"
 111                "System clock synchronized: %s\n"
 112                "              NTP service: %s\n"
 113                "          RTC in local TZ: %s\n",
 114                strna(i->timezone), have_time && n > 0 ? a : "n/a",
 115                yes_no(i->ntp_synced),
 116                i->ntp_capable ? (i->ntp_active ? "active" : "inactive") : "n/a",
 117                yes_no(i->rtc_local));
 118
 119         if (i->rtc_local)
 120                 printf("\n%s"
 121                        "Warning: The system is configured to read the RTC time in the local time zone.\n"
 122                        "         This mode cannot be fully supported. It will create various problems\n"
 123                        "         with time zone changes and daylight saving time adjustments. The RTC\n"
 124                        "         time is never updated, it relies on external facilities to maintain it.\n"
 125                        "         If at all possible, use RTC in UTC by calling\n"
 126                        "         'timedatectl set-local-rtc 0'.%s\n", ansi_highlight(), ansi_normal());
 127 }
 128
 129 static int show_status(int argc, char **argv, void *userdata) {
 130         StatusInfo info = {};
 131         static const struct bus_properties_map map[]  = {
 132                 { "Timezone",        "s", NULL, offsetof(StatusInfo, timezone)    },
 133                 { "LocalRTC",        "b", NULL, offsetof(StatusInfo, rtc_local)   },
 134                 { "NTP",             "b", NULL, offsetof(StatusInfo, ntp_active)  },
 135                 { "CanNTP",          "b", NULL, offsetof(StatusInfo, ntp_capable) },
 136                 { "NTPSynchronized", "b", NULL, offsetof(StatusInfo, ntp_synced)  },
 137                 { "TimeUSec",        "t", NULL, offsetof(StatusInfo, time)        },
 138                 { "RTCTimeUSec",     "t", NULL, offsetof(StatusInfo, rtc_time)    },
 139                 {}
 140         };
 141
 142         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
 143         _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
 144         sd_bus *bus = userdata;
 145         int r;
 146
 147         assert(bus);
 148
 149         r = bus_map_all_properties(bus,
 150                                    "org.freedesktop.timedate1",
 151                                    "/org/freedesktop/timedate1",
 152                                    map,
 153                                    BUS_MAP_BOOLEAN_AS_BOOL,
 154                                    &error,
 155                                    &m,
 156                                    &info);
 157         if (r < 0)
 158                 return log_error_errno(r, "Failed to query server: %s", bus_error_message(&error, r));
 159
 160         print_status_info(&info);
 161
 162         return r;
 163 }
 164
 165 static int show_properties(int argc, char **argv, void *userdata) {
 166         sd_bus *bus = userdata;
 167         int r;
 168
 169         assert(bus);
 170
 171         r = bus_print_all_properties(bus,
 172                                      "org.freedesktop.timedate1",
 173                                      "/org/freedesktop/timedate1",
 174                                      NULL,
 175                                      arg_property,
 176                                      arg_value,
 177                                      arg_all,
 178                                      NULL);
 179         if (r < 0)
 180                 return bus_log_parse_error(r);
 181
 182         return 0;
 183 }
 184
 185 static int set_time(int argc, char **argv, void *userdata) {
 186         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
 187         bool relative = false, interactive = arg_ask_password;
 188         sd_bus *bus = userdata;
 189         usec_t t;
 190         int r;
 191
 192         polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
 193
 194         r = parse_timestamp(argv[1], &t);
 195         if (r < 0)
 196                 return log_error_errno(r, "Failed to parse time specification '%s': %m", argv[1]);
 197
 198         r = sd_bus_call_method(bus,
 199                                "org.freedesktop.timedate1",
 200                                "/org/freedesktop/timedate1",
 201                                "org.freedesktop.timedate1",
 202                                "SetTime",
 203                                &error,
 204                                NULL,
 205                                "xbb", (int64_t) t, relative, interactive);
 206         if (r < 0)
 207                 return log_error_errno(r, "Failed to set time: %s", bus_error_message(&error, r));
 208
 209         return 0;
 210 }
 211
 212 static int set_timezone(int argc, char **argv, void *userdata) {
 213         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
 214         sd_bus *bus = userdata;
 215         int r;
 216
 217         polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
 218
 219         r = sd_bus_call_method(bus,
 220                                "org.freedesktop.timedate1",
 221                                "/org/freedesktop/timedate1",
 222                                "org.freedesktop.timedate1",
 223                                "SetTimezone",
 224                                &error,
 225                                NULL,
 226                                "sb", argv[1], arg_ask_password);
 227         if (r < 0)
 228                 return log_error_errno(r, "Failed to set time zone: %s", bus_error_message(&error, r));
 229
 230         return 0;
 231 }
 232
 233 static int set_local_rtc(int argc, char **argv, void *userdata) {
 234         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
 235         sd_bus *bus = userdata;
 236         int r, b;
 237
 238         polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
 239
 240         b = parse_boolean(argv[1]);
 241         if (b < 0)
 242                 return log_error_errno(b, "Failed to parse local RTC setting '%s': %m", argv[1]);
 243
 244         r = sd_bus_call_method(bus,
 245                                "org.freedesktop.timedate1",
 246                                "/org/freedesktop/timedate1",
 247                                "org.freedesktop.timedate1",
 248                                "SetLocalRTC",
 249                                &error,
 250                                NULL,
 251                                "bbb", b, arg_adjust_system_clock, arg_ask_password);
 252         if (r < 0)
 253                 return log_error_errno(r, "Failed to set local RTC: %s", bus_error_message(&error, r));
 254
 255         return 0;
 256 }
 257
 258 static int set_ntp(int argc, char **argv, void *userdata) {
 259         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
 260         sd_bus *bus = userdata;
 261         int b, r;
 262
 263         polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
 264
 265         b = parse_boolean(argv[1]);
 266         if (b < 0)
 267                 return log_error_errno(b, "Failed to parse NTP setting '%s': %m", argv[1]);
 268
 269         r = sd_bus_call_method(bus,
 270                                "org.freedesktop.timedate1",
 271                                "/org/freedesktop/timedate1",
 272                                "org.freedesktop.timedate1",
 273                                "SetNTP",
 274                                &error,
 275                                NULL,
 276                                "bb", b, arg_ask_password);
 277         if (r < 0)
 278                 return log_error_errno(r, "Failed to set ntp: %s", bus_error_message(&error, r));
 279
 280         return 0;
 281 }
 282
 283 static int list_timezones(int argc, char **argv, void *userdata) {
 284         _cleanup_strv_free_ char **zones = NULL;
 285         int r;
 286
 287         r = get_timezones(&zones);
 288         if (r < 0)
 289                 return log_error_errno(r, "Failed to read list of time zones: %m");
 290
 291         (void) pager_open(arg_no_pager, false);
 292         strv_print(zones);
 293
 294         return 0;
 295 }
 296
 297 typedef struct NTPStatusInfo {
 298         const char *server_name;
 299         char *server_address;
 300         usec_t poll_interval, poll_max, poll_min;
 301         usec_t root_distance_max;
 302
 303         uint32_t leap, version, mode, stratum;
 304         int32_t precision;
 305         usec_t root_delay, root_dispersion;
 306         union {
 307                 char str[5];
 308                 uint32_t val;
 309         } reference;
 310         usec_t origin, recv, trans, dest;
 311
 312         bool spike;
 313         uint64_t packet_count;
 314         usec_t jitter;
 315
 316         int64_t freq;
 317 } NTPStatusInfo;
 318
 319 static void ntp_status_info_clear(NTPStatusInfo *p) {
 320         p->server_address = mfree(p->server_address);
 321 }
 322
 323 static const char * const ntp_leap_table[4] = {
 324         [0] = "normal",
 325         [1] = "last minute of the day has 61 seconds",
 326         [2] = "last minute of the day has 59 seconds",
 327         [3] = "not synchronized",
 328 };
 329
 330 #pragma GCC diagnostic push
 331 #pragma GCC diagnostic ignored "-Wtype-limits"
 332 DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(ntp_leap, uint32_t);
 333 #pragma GCC diagnostic pop
 334
 335 static void print_ntp_status_info(NTPStatusInfo *i) {
 336         char ts[FORMAT_TIMESPAN_MAX], tmin[FORMAT_TIMESPAN_MAX], tmax[FORMAT_TIMESPAN_MAX];
 337         usec_t delay, t14, t23, offset, root_distance;
 338         bool offset_sign;
 339
 340         assert(i);
 341
 342         /*
 343          * "Timestamp Name          ID   When Generated
 344          *  ------------------------------------------------------------
 345          *  Originate Timestamp     T1   time request sent by client
 346          *  Receive Timestamp       T2   time request received by server
 347          *  Transmit Timestamp      T3   time reply sent by server
 348          *  Destination Timestamp   T4   time reply received by client
 349          *
 350          *  The round-trip delay, d, and system clock offset, t, are defined as:
 351          *  d = (T4 - T1) - (T3 - T2)     t = ((T2 - T1) + (T3 - T4)) / 2"
 352          */
 353
 354         printf("       Server: %s (%s)\n",
 355                i->server_address, i->server_name);
 356         printf("Poll interval: %s (min: %s; max %s)\n",
 357                format_timespan(ts, sizeof(ts), i->poll_interval, 0),
 358                format_timespan(tmin, sizeof(tmin), i->poll_min, 0),
 359                format_timespan(tmax, sizeof(tmax), i->poll_max, 0));
 360
 361         if (i->packet_count == 0) {
 362                 printf(" Packet count: 0\n");
 363                 return;
 364         }
 365
 366         if (i->dest < i->origin || i->trans < i->recv || i->dest - i->origin < i->trans - i->recv) {
 367                 log_error("Invalid NTP response");
 368                 return;
 369         }
 370
 371         delay = (i->dest - i->origin) - (i->trans - i->recv);
 372
 373         t14 = i->origin + i->dest;
 374         t23 = i->recv + i->trans;
 375         offset_sign = t14 < t23;
 376         offset = (offset_sign ? t23 - t14 : t14 - t23) / 2;
 377
 378         root_distance = i->root_delay / 2 + i->root_dispersion;
 379
 380         printf("         Leap: %s\n"
 381                "      Version: %" PRIu32 "\n"
 382                "      Stratum: %" PRIu32 "\n",
 383                ntp_leap_to_string(i->leap),
 384                i->version,
 385                i->stratum);
 386         if (i->stratum <= 1)
 387                 printf("    Reference: %s\n", i->reference.str);
 388         else
 389                 printf("    Reference: %" PRIX32 "\n", be32toh(i->reference.val));
 390         printf("    Precision: %s (%" PRIi32 ")\n",
 391                format_timespan(ts, sizeof(ts), DIV_ROUND_UP((nsec_t) (exp2(i->precision) * NSEC_PER_SEC), NSEC_PER_USEC), 0),
 392                i->precision);
 393         printf("Root distance: %s (max: %s)\n",
 394                format_timespan(ts, sizeof(ts), root_distance, 0),
 395                format_timespan(tmax, sizeof(tmax), i->root_distance_max, 0));
 396         printf("       Offset: %s%s\n",
 397                offset_sign ? "+" : "-",
 398                format_timespan(ts, sizeof(ts), offset, 0));
 399         printf("        Delay: %s\n",
 400                format_timespan(ts, sizeof(ts), delay, 0));
 401         printf("       Jitter: %s\n",
 402                format_timespan(ts, sizeof(ts), i->jitter, 0));
 403         printf(" Packet count: %" PRIu64 "\n", i->packet_count);
 404
 405         if (!i->spike)
 406                 printf("    Frequency: %+.3fppm\n",
 407                        (double) i->freq / 0x10000);
 408 }
 409
 410 static int map_server_address(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
 411         char **p = (char **) userdata;
 412         const void *d;
 413         int family, r;
 414         size_t sz;
 415
 416         assert(p);
 417
 418         r = sd_bus_message_enter_container(m, 'r', "iay");
 419         if (r < 0)
 420                 return r;
 421
 422         r = sd_bus_message_read(m, "i", &family);
 423         if (r < 0)
 424                 return r;
 425
 426         r = sd_bus_message_read_array(m, 'y', &d, &sz);
 427         if (r < 0)
 428                 return r;
 429
 430         r = sd_bus_message_exit_container(m);
 431         if (r < 0)
 432                 return r;
 433
 434         if (sz == 0 && family == AF_UNSPEC) {
 435                 *p = mfree(*p);
 436                 return 0;
 437         }
 438
 439         if (!IN_SET(family, AF_INET, AF_INET6)) {
 440                 log_error("Unknown address family %i", family);
 441                 return -EINVAL;
 442         }
 443
 444         if (sz != FAMILY_ADDRESS_SIZE(family)) {
 445                 log_error("Invalid address size");
 446                 return -EINVAL;
 447         }
 448
 449         r = in_addr_to_string(family, d, p);
 450         if (r < 0)
 451                 return r;
 452
 453         return 0;
 454 }
 455
 456 static int map_ntp_message(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
 457         NTPStatusInfo *p = userdata;
 458         const void *d;
 459         size_t sz;
 460         int32_t b;
 461         int r;
 462
 463         assert(p);
 464
 465         r = sd_bus_message_enter_container(m, 'r', "uuuuittayttttbtt");
 466         if (r < 0)
 467                 return r;
 468
 469         r = sd_bus_message_read(m, "uuuuitt",
 470                                 &p->leap, &p->version, &p->mode, &p->stratum, &p->precision,
 471                                 &p->root_delay, &p->root_dispersion);
 472         if (r < 0)
 473                 return r;
 474
 475         r = sd_bus_message_read_array(m, 'y', &d, &sz);
 476         if (r < 0)
 477                 return r;
 478
 479         r = sd_bus_message_read(m, "ttttbtt",
 480                                 &p->origin, &p->recv, &p->trans, &p->dest,
 481                                 &b, &p->packet_count, &p->jitter);
 482         if (r < 0)
 483                 return r;
 484
 485         r = sd_bus_message_exit_container(m);
 486         if (r < 0)
 487                 return r;
 488
 489         if (sz != 4)
 490                 return -EINVAL;
 491
 492         memcpy(p->reference.str, d, sz);
 493
 494         p->spike = b;
 495
 496         return 0;
 497 }
 498
 499 static int show_timesync_status_once(sd_bus *bus) {
 500         static const struct bus_properties_map map_timesync[]  = {
 501                 { "ServerName",           "s",                  NULL,               offsetof(NTPStatusInfo, server_name)       },
 502                 { "ServerAddress",        "(iay)",              map_server_address, offsetof(NTPStatusInfo, server_address)    },
 503                 { "PollIntervalUSec",     "t",                  NULL,               offsetof(NTPStatusInfo, poll_interval)     },
 504                 { "PollIntervalMinUSec",  "t",                  NULL,               offsetof(NTPStatusInfo, poll_min)          },
 505                 { "PollIntervalMaxUSec",  "t",                  NULL,               offsetof(NTPStatusInfo, poll_max)          },
 506                 { "RootDistanceMaxUSec",  "t",                  NULL,               offsetof(NTPStatusInfo, root_distance_max) },
 507                 { "NTPMessage",           "(uuuuittayttttbtt)", map_ntp_message,    0                                          },
 508                 { "Frequency",            "x",                  NULL,               offsetof(NTPStatusInfo, freq)              },
 509                 {}
 510         };
 511         _cleanup_(ntp_status_info_clear) NTPStatusInfo info = {};
 512         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
 513         _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
 514         int r;
 515
 516         assert(bus);
 517
 518         r = bus_map_all_properties(bus,
 519                                    "org.freedesktop.timesync1",
 520                                    "/org/freedesktop/timesync1",
 521                                    map_timesync,
 522                                    BUS_MAP_BOOLEAN_AS_BOOL,
 523                                    &error,
 524                                    &m,
 525                                    &info);
 526         if (r < 0)
 527                 return log_error_errno(r, "Failed to query server: %s", bus_error_message(&error, r));
 528
 529         if (arg_monitor && !terminal_is_dumb())
 530                 fputs(ANSI_HOME_CLEAR, stdout);
 531
 532         print_ntp_status_info(&info);
 533
 534         return 0;
 535 }
 536
 537 static int on_properties_changed(sd_bus_message *m, void *userdata, sd_bus_error *error) {
 538         const char *name;
 539         int r;
 540
 541         assert(m);
 542
 543         r = sd_bus_message_read(m, "s", &name);
 544         if (r < 0)
 545                 return log_error_errno(r, "Failed to read interface name: %m");
 546
 547         if (!streq_ptr(name, "org.freedesktop.timesync1.Manager"))
 548                 return 0;
 549
 550         return show_timesync_status_once(sd_bus_message_get_bus(m));
 551 }
 552
 553 static int show_timesync_status(int argc, char **argv, void *userdata) {
 554         _cleanup_(sd_event_unrefp) sd_event *event = NULL;
 555         sd_bus *bus = userdata;
 556         int r;
 557
 558         assert(bus);
 559
 560         r = show_timesync_status_once(bus);
 561         if (r < 0)
 562                 return r;
 563
 564         if (!arg_monitor)
 565                 return 0;
 566
 567         r = sd_event_default(&event);
 568         if (r < 0)
 569                 return log_error_errno(r, "Failed to get event loop: %m");
 570
 571         r = sd_bus_match_signal(bus,
 572                                 NULL,
 573                                 "org.freedesktop.timesync1",
 574                                 "/org/freedesktop/timesync1",
 575                                 "org.freedesktop.DBus.Properties",
 576                                 "PropertiesChanged",
 577                                 on_properties_changed, NULL);
 578         if (r < 0)
 579                 return log_error_errno(r, "Failed to request match for PropertiesChanged signal: %m");
 580
 581         r = sd_bus_attach_event(bus, event, SD_EVENT_PRIORITY_NORMAL);
 582         if (r < 0)
 583                 return log_error_errno(r, "Failed to attach bus to event loop: %m");
 584
 585         r = sd_event_loop(event);
 586         if (r < 0)
 587                 return log_error_errno(r, "Failed to run event loop: %m");
 588
 589         return 0;
 590 }
 591
 592 #define property(name, fmt, ...)                                        \
 593         do {                                                            \
 594                 if (value)                                              \
 595                         printf(fmt "\n", __VA_ARGS__);                  \
 596                 else                                                    \
 597                         printf("%s=" fmt "\n", name, __VA_ARGS__);      \
 598         } while (0)
 599
 600 static int print_timesync_property(const char *name, sd_bus_message *m, bool value, bool all) {
 601         char type;
 602         const char *contents;
 603         int r;
 604
 605         assert(name);
 606         assert(m);
 607
 608         r = sd_bus_message_peek_type(m, &type, &contents);
 609         if (r < 0)
 610                 return r;
 611
 612         switch (type) {
 613
 614         case SD_BUS_TYPE_STRUCT:
 615                 if (streq(name, "NTPMessage")) {
 616                         _cleanup_(ntp_status_info_clear) NTPStatusInfo i = {};
 617                         char ts[FORMAT_TIMESPAN_MAX], stamp[FORMAT_TIMESTAMP_MAX];
 618
 619                         r = map_ntp_message(NULL, NULL, m, NULL, &i);
 620                         if (r < 0)
 621                                 return r;
 622
 623                         if (i.packet_count == 0)
 624                                 return 1;
 625
 626                         if (!value) {
 627                                 fputs(name, stdout);
 628                                 fputc('=', stdout);
 629                         }
 630
 631                         printf("{ Leap=%u, Version=%u, Mode=%u, Stratum=%u, Precision=%i,",
 632                                i.leap, i.version, i.mode, i.stratum, i.precision);
 633                         printf(" RootDelay=%s,",
 634                                format_timespan(ts, sizeof(ts), i.root_delay, 0));
 635                         printf(" RootDispersion=%s,",
 636                                format_timespan(ts, sizeof(ts), i.root_dispersion, 0));
 637
 638                         if (i.stratum == 1)
 639                                 printf(" Reference=%s,", i.reference.str);
 640                         else
 641                                 printf(" Reference=%" PRIX32 ",", be32toh(i.reference.val));
 642
 643                         printf(" OriginateTimestamp=%s,",
 644                                format_timestamp(stamp, sizeof(stamp), i.origin));
 645                         printf(" ReceiveTimestamp=%s,",
 646                                format_timestamp(stamp, sizeof(stamp), i.recv));
 647                         printf(" TransmitTimestamp=%s,",
 648                                format_timestamp(stamp, sizeof(stamp), i.trans));
 649                         printf(" DestinationTimestamp=%s,",
 650                                format_timestamp(stamp, sizeof(stamp), i.dest));
 651                         printf(" Ignored=%s PacketCount=%" PRIu64 ",",
 652                                yes_no(i.spike), i.packet_count);
 653                         printf(" Jitter=%s }\n",
 654                                format_timespan(ts, sizeof(ts), i.jitter, 0));
 655
 656                         return 1;
 657
 658                 } else if (streq(name, "ServerAddress")) {
 659                         _cleanup_free_ char *str = NULL;
 660
 661                         r = map_server_address(NULL, NULL, m, NULL, &str);
 662                         if (r < 0)
 663                                 return r;
 664
 665                         if (arg_all || !isempty(str))
 666                                 property(name, "%s", str);
 667
 668                         return 1;
 669                 }
 670                 break;
 671         }
 672
 673         return 0;
 674 }
 675
 676 static int show_timesync(int argc, char **argv, void *userdata) {
 677         sd_bus *bus = userdata;
 678         int r;
 679
 680         assert(bus);
 681
 682         r = bus_print_all_properties(bus,
 683                                      "org.freedesktop.timesync1",
 684                                      "/org/freedesktop/timesync1",
 685                                      print_timesync_property,
 686                                      arg_property,
 687                                      arg_value,
 688                                      arg_all,
 689                                      NULL);
 690         if (r < 0)
 691                 return bus_log_parse_error(r);
 692
 693         return 0;
 694 }
 695
 696 static int help(void) {
 697         printf("%s [OPTIONS...] COMMAND ...\n\n"
 698                "Query or change system time and date settings.\n\n"
 699                "  -h --help                Show this help message\n"
 700                "     --version             Show package version\n"
 701                "     --no-pager            Do not pipe output into a pager\n"
 702                "     --no-ask-password     Do not prompt for password\n"
 703                "  -H --host=[USER@]HOST    Operate on remote host\n"
 704                "  -M --machine=CONTAINER   Operate on local container\n"
 705                "     --adjust-system-clock Adjust system clock when changing local RTC mode\n"
 706                "     --monitor             Monitor status of systemd-timesyncd\n"
 707                "  -p --property=NAME       Show only properties by this name\n"
 708                "  -a --all                 Show all properties, including empty ones\n"
 709                "     --value               When showing properties, only print the value\n"
 710                "\n"
 711                "Commands:\n"
 712                "  status                   Show current time settings\n"
 713                "  show                     Show properties of systemd-timedated\n"
 714                "  set-time TIME            Set system time\n"
 715                "  set-timezone ZONE        Set system time zone\n"
 716                "  list-timezones           Show known time zones\n"
 717                "  set-local-rtc BOOL       Control whether RTC is in local time\n"
 718                "  set-ntp BOOL             Enable or disable network time synchronization\n"
 719                "\n"
 720                "systemd-timesyncd Commands:\n"
 721                "  timesync-status          Show status of systemd-timesyncd\n"
 722                "  show-timesync            Show properties of systemd-timesyncd\n"
 723                , program_invocation_short_name);
 724
 725         return 0;
 726 }
 727
 728 static int verb_help(int argc, char **argv, void *userdata) {
 729         return help();
 730 }
 731
 732 static int parse_argv(int argc, char *argv[]) {
 733
 734         enum {
 735                 ARG_VERSION = 0x100,
 736                 ARG_NO_PAGER,
 737                 ARG_ADJUST_SYSTEM_CLOCK,
 738                 ARG_NO_ASK_PASSWORD,
 739                 ARG_MONITOR,
 740                 ARG_VALUE,
 741         };
 742
 743         static const struct option options[] = {
 744                 { "help",                no_argument,       NULL, 'h'                     },
 745                 { "version",             no_argument,       NULL, ARG_VERSION             },
 746                 { "no-pager",            no_argument,       NULL, ARG_NO_PAGER            },
 747                 { "host",                required_argument, NULL, 'H'                     },
 748                 { "machine",             required_argument, NULL, 'M'                     },
 749                 { "no-ask-password",     no_argument,       NULL, ARG_NO_ASK_PASSWORD     },
 750                 { "adjust-system-clock", no_argument,       NULL, ARG_ADJUST_SYSTEM_CLOCK },
 751                 { "monitor",             no_argument,       NULL, ARG_MONITOR             },
 752                 { "property",            required_argument, NULL, 'p'                     },
 753                 { "all",                 no_argument,       NULL, 'a'                     },
 754                 { "value",               no_argument,       NULL, ARG_VALUE               },
 755                 {}
 756         };
 757
 758         int c, r;
 759
 760         assert(argc >= 0);
 761         assert(argv);
 762
 763         while ((c = getopt_long(argc, argv, "hH:M:p:a", options, NULL)) >= 0)
 764
 765                 switch (c) {
 766
 767                 case 'h':
 768                         return help();
 769
 770                 case ARG_VERSION:
 771                         return version();
 772
 773                 case 'H':
 774                         arg_transport = BUS_TRANSPORT_REMOTE;
 775                         arg_host = optarg;
 776                         break;
 777
 778                 case 'M':
 779                         arg_transport = BUS_TRANSPORT_MACHINE;
 780                         arg_host = optarg;
 781                         break;
 782
 783                 case ARG_NO_ASK_PASSWORD:
 784                         arg_ask_password = false;
 785                         break;
 786
 787                 case ARG_ADJUST_SYSTEM_CLOCK:
 788                         arg_adjust_system_clock = true;
 789                         break;
 790
 791                 case ARG_NO_PAGER:
 792                         arg_no_pager = true;
 793                         break;
 794
 795                 case ARG_MONITOR:
 796                         arg_monitor = true;
 797                         break;
 798
 799                 case 'p': {
 800                         r = strv_extend(&arg_property, optarg);
 801                         if (r < 0)
 802                                 return log_oom();
 803
 804                         /* If the user asked for a particular
 805                          * property, show it to him, even if it is
 806                          * empty. */
 807                         arg_all = true;
 808                         break;
 809                 }
 810
 811                 case 'a':
 812                         arg_all = true;
 813                         break;
 814
 815                 case ARG_VALUE:
 816                         arg_value = true;
 817                         break;
 818
 819                 case '?':
 820                         return -EINVAL;
 821
 822                 default:
 823                         assert_not_reached("Unhandled option");
 824                 }
 825
 826         return 1;
 827 }
 828
 829 static int timedatectl_main(sd_bus *bus, int argc, char *argv[]) {
 830
 831         static const Verb verbs[] = {
 832                 { "status",          VERB_ANY, 1,        VERB_DEFAULT, show_status          },
 833                 { "show",            VERB_ANY, 1,        0,            show_properties      },
 834                 { "set-time",        2,        2,        0,            set_time             },
 835                 { "set-timezone",    2,        2,        0,            set_timezone         },
 836                 { "list-timezones",  VERB_ANY, 1,        0,            list_timezones       },
 837                 { "set-local-rtc",   2,        2,        0,            set_local_rtc        },
 838                 { "set-ntp",         2,        2,        0,            set_ntp              },
 839                 { "timesync-status", VERB_ANY, 1,        0,            show_timesync_status },
 840                 { "show-timesync",   VERB_ANY, 1,        0,            show_timesync        },
 841                 { "help",            VERB_ANY, VERB_ANY, 0,            verb_help            }, /* Not documented, but supported since it is created. */
 842                 {}
 843         };
 844
 845         return dispatch_verb(argc, argv, verbs, bus);
 846 }
 847
 848 int main(int argc, char *argv[]) {
 849         sd_bus *bus = NULL;
 850         int r;
 851
 852         setlocale(LC_ALL, "");
 853         log_parse_environment();
 854         log_open();
 855
 856         r = parse_argv(argc, argv);
 857         if (r <= 0)
 858                 goto finish;
 859
 860         r = bus_connect_transport(arg_transport, arg_host, false, &bus);
 861         if (r < 0) {
 862                 log_error_errno(r, "Failed to create bus connection: %m");
 863                 goto finish;
 864         }
 865
 866         r = timedatectl_main(bus, argc, argv);
 867
 868 finish:
 869         /* make sure we terminate the bus connection first, and then close the
 870          * pager, see issue #3543 for the details. */
 871         sd_bus_flush_close_unref(bus);
 872         pager_close();
 873
 874         return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
 875 }