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[thirdparty/systemd.git] / 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 "main-func.h"
15 #include "pager.h"
16 #include "parse-util.h"
17 #include "pretty-print.h"
18 #include "spawn-polkit-agent.h"
19 #include "sparse-endian.h"
20 #include "string-table.h"
21 #include "strv.h"
22 #include "terminal-util.h"
23 #include "util.h"
24 #include "verbs.h"
25
26 static PagerFlags arg_pager_flags = 0;
27 static bool arg_ask_password = true;
28 static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
29 static char *arg_host = NULL;
30 static bool arg_adjust_system_clock = false;
31 static bool arg_monitor = false;
32 static char **arg_property = NULL;
33 static bool arg_value = false;
34 static bool arg_all = false;
35
36 typedef struct StatusInfo {
37 usec_t time;
38 const char *timezone;
39
40 usec_t rtc_time;
41 bool rtc_local;
42
43 bool ntp_capable;
44 bool ntp_active;
45 bool ntp_synced;
46 } StatusInfo;
47
48 static void print_status_info(const StatusInfo *i) {
49 const char *old_tz = NULL, *tz;
50 bool have_time = false;
51 char a[LINE_MAX];
52 struct tm tm;
53 time_t sec;
54 size_t n;
55 int r;
56
57 assert(i);
58
59 /* Save the old $TZ */
60 tz = getenv("TZ");
61 if (tz)
62 old_tz = strdupa(tz);
63
64 /* Set the new $TZ */
65 if (setenv("TZ", isempty(i->timezone) ? "UTC" : i->timezone, true) < 0)
66 log_warning_errno(errno, "Failed to set TZ environment variable, ignoring: %m");
67 else
68 tzset();
69
70 if (i->time != 0) {
71 sec = (time_t) (i->time / USEC_PER_SEC);
72 have_time = true;
73 } else if (IN_SET(arg_transport, BUS_TRANSPORT_LOCAL, BUS_TRANSPORT_MACHINE)) {
74 sec = time(NULL);
75 have_time = true;
76 } else
77 log_warning("Could not get time from timedated and not operating locally, ignoring.");
78
79 if (have_time) {
80 n = strftime(a, sizeof a, "%a %Y-%m-%d %H:%M:%S %Z", localtime_r(&sec, &tm));
81 printf(" Local time: %s\n", n > 0 ? a : "n/a");
82
83 n = strftime(a, sizeof a, "%a %Y-%m-%d %H:%M:%S UTC", gmtime_r(&sec, &tm));
84 printf(" Universal time: %s\n", n > 0 ? a : "n/a");
85 } else {
86 printf(" Local time: %s\n", "n/a");
87 printf(" Universal time: %s\n", "n/a");
88 }
89
90 if (i->rtc_time > 0) {
91 time_t rtc_sec;
92
93 rtc_sec = (time_t) (i->rtc_time / USEC_PER_SEC);
94 n = strftime(a, sizeof a, "%a %Y-%m-%d %H:%M:%S", gmtime_r(&rtc_sec, &tm));
95 printf(" RTC time: %s\n", n > 0 ? a : "n/a");
96 } else
97 printf(" RTC time: %s\n", "n/a");
98
99 if (have_time)
100 n = strftime(a, sizeof a, "%Z, %z", localtime_r(&sec, &tm));
101
102 /* Restore the $TZ */
103 if (old_tz)
104 r = setenv("TZ", old_tz, true);
105 else
106 r = unsetenv("TZ");
107 if (r < 0)
108 log_warning_errno(errno, "Failed to set TZ environment variable, ignoring: %m");
109 else
110 tzset();
111
112 printf(" Time zone: %s (%s)\n"
113 "System clock synchronized: %s\n"
114 " NTP service: %s\n"
115 " RTC in local TZ: %s\n",
116 strna(i->timezone), have_time && n > 0 ? a : "n/a",
117 yes_no(i->ntp_synced),
118 i->ntp_capable ? (i->ntp_active ? "active" : "inactive") : "n/a",
119 yes_no(i->rtc_local));
120
121 if (i->rtc_local)
122 printf("\n%s"
123 "Warning: The system is configured to read the RTC time in the local time zone.\n"
124 " This mode cannot be fully supported. It will create various problems\n"
125 " with time zone changes and daylight saving time adjustments. The RTC\n"
126 " time is never updated, it relies on external facilities to maintain it.\n"
127 " If at all possible, use RTC in UTC by calling\n"
128 " 'timedatectl set-local-rtc 0'.%s\n", ansi_highlight(), ansi_normal());
129 }
130
131 static int show_status(int argc, char **argv, void *userdata) {
132 StatusInfo info = {};
133 static const struct bus_properties_map map[] = {
134 { "Timezone", "s", NULL, offsetof(StatusInfo, timezone) },
135 { "LocalRTC", "b", NULL, offsetof(StatusInfo, rtc_local) },
136 { "NTP", "b", NULL, offsetof(StatusInfo, ntp_active) },
137 { "CanNTP", "b", NULL, offsetof(StatusInfo, ntp_capable) },
138 { "NTPSynchronized", "b", NULL, offsetof(StatusInfo, ntp_synced) },
139 { "TimeUSec", "t", NULL, offsetof(StatusInfo, time) },
140 { "RTCTimeUSec", "t", NULL, offsetof(StatusInfo, rtc_time) },
141 {}
142 };
143
144 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
145 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
146 sd_bus *bus = userdata;
147 int r;
148
149 assert(bus);
150
151 r = bus_map_all_properties(bus,
152 "org.freedesktop.timedate1",
153 "/org/freedesktop/timedate1",
154 map,
155 BUS_MAP_BOOLEAN_AS_BOOL,
156 &error,
157 &m,
158 &info);
159 if (r < 0)
160 return log_error_errno(r, "Failed to query server: %s", bus_error_message(&error, r));
161
162 print_status_info(&info);
163
164 return r;
165 }
166
167 static int show_properties(int argc, char **argv, void *userdata) {
168 sd_bus *bus = userdata;
169 int r;
170
171 assert(bus);
172
173 r = bus_print_all_properties(bus,
174 "org.freedesktop.timedate1",
175 "/org/freedesktop/timedate1",
176 NULL,
177 arg_property,
178 arg_value,
179 arg_all,
180 NULL);
181 if (r < 0)
182 return bus_log_parse_error(r);
183
184 return 0;
185 }
186
187 static int set_time(int argc, char **argv, void *userdata) {
188 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
189 bool relative = false, interactive = arg_ask_password;
190 sd_bus *bus = userdata;
191 usec_t t;
192 int r;
193
194 polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
195
196 r = parse_timestamp(argv[1], &t);
197 if (r < 0)
198 return log_error_errno(r, "Failed to parse time specification '%s': %m", argv[1]);
199
200 r = sd_bus_call_method(bus,
201 "org.freedesktop.timedate1",
202 "/org/freedesktop/timedate1",
203 "org.freedesktop.timedate1",
204 "SetTime",
205 &error,
206 NULL,
207 "xbb", (int64_t) t, relative, interactive);
208 if (r < 0)
209 return log_error_errno(r, "Failed to set time: %s", bus_error_message(&error, r));
210
211 return 0;
212 }
213
214 static int set_timezone(int argc, char **argv, void *userdata) {
215 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
216 sd_bus *bus = userdata;
217 int r;
218
219 polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
220
221 r = sd_bus_call_method(bus,
222 "org.freedesktop.timedate1",
223 "/org/freedesktop/timedate1",
224 "org.freedesktop.timedate1",
225 "SetTimezone",
226 &error,
227 NULL,
228 "sb", argv[1], arg_ask_password);
229 if (r < 0)
230 return log_error_errno(r, "Failed to set time zone: %s", bus_error_message(&error, r));
231
232 return 0;
233 }
234
235 static int set_local_rtc(int argc, char **argv, void *userdata) {
236 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
237 sd_bus *bus = userdata;
238 int r, b;
239
240 polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
241
242 b = parse_boolean(argv[1]);
243 if (b < 0)
244 return log_error_errno(b, "Failed to parse local RTC setting '%s': %m", argv[1]);
245
246 r = sd_bus_call_method(bus,
247 "org.freedesktop.timedate1",
248 "/org/freedesktop/timedate1",
249 "org.freedesktop.timedate1",
250 "SetLocalRTC",
251 &error,
252 NULL,
253 "bbb", b, arg_adjust_system_clock, arg_ask_password);
254 if (r < 0)
255 return log_error_errno(r, "Failed to set local RTC: %s", bus_error_message(&error, r));
256
257 return 0;
258 }
259
260 static int set_ntp(int argc, char **argv, void *userdata) {
261 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
262 sd_bus *bus = userdata;
263 int b, r;
264
265 polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
266
267 b = parse_boolean(argv[1]);
268 if (b < 0)
269 return log_error_errno(b, "Failed to parse NTP setting '%s': %m", argv[1]);
270
271 r = sd_bus_call_method(bus,
272 "org.freedesktop.timedate1",
273 "/org/freedesktop/timedate1",
274 "org.freedesktop.timedate1",
275 "SetNTP",
276 &error,
277 NULL,
278 "bb", b, arg_ask_password);
279 if (r < 0)
280 return log_error_errno(r, "Failed to set ntp: %s", bus_error_message(&error, r));
281
282 return 0;
283 }
284
285 static int list_timezones(int argc, char **argv, void *userdata) {
286 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
287 sd_bus *bus = userdata;
288 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
289 int r;
290 char** zones;
291
292 r = sd_bus_call_method(bus,
293 "org.freedesktop.timedate1",
294 "/org/freedesktop/timedate1",
295 "org.freedesktop.timedate1",
296 "ListTimezones",
297 &error,
298 &reply,
299 NULL);
300 if (r < 0)
301 return log_error_errno(r, "Failed to request list of time zones: %s",
302 bus_error_message(&error, r));
303
304 r = sd_bus_message_read_strv(reply, &zones);
305 if (r < 0)
306 return bus_log_parse_error(r);
307
308 (void) pager_open(arg_pager_flags);
309 strv_print(zones);
310
311 return 0;
312 }
313
314 typedef struct NTPStatusInfo {
315 const char *server_name;
316 char *server_address;
317 usec_t poll_interval, poll_max, poll_min;
318 usec_t root_distance_max;
319
320 uint32_t leap, version, mode, stratum;
321 int32_t precision;
322 usec_t root_delay, root_dispersion;
323 union {
324 char str[5];
325 uint32_t val;
326 } reference;
327 usec_t origin, recv, trans, dest;
328
329 bool spike;
330 uint64_t packet_count;
331 usec_t jitter;
332
333 int64_t freq;
334 } NTPStatusInfo;
335
336 static void ntp_status_info_clear(NTPStatusInfo *p) {
337 p->server_address = mfree(p->server_address);
338 }
339
340 static const char * const ntp_leap_table[4] = {
341 [0] = "normal",
342 [1] = "last minute of the day has 61 seconds",
343 [2] = "last minute of the day has 59 seconds",
344 [3] = "not synchronized",
345 };
346
347 #pragma GCC diagnostic push
348 #pragma GCC diagnostic ignored "-Wtype-limits"
349 DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(ntp_leap, uint32_t);
350 #pragma GCC diagnostic pop
351
352 static void print_ntp_status_info(NTPStatusInfo *i) {
353 char ts[FORMAT_TIMESPAN_MAX], tmin[FORMAT_TIMESPAN_MAX], tmax[FORMAT_TIMESPAN_MAX];
354 usec_t delay, t14, t23, offset, root_distance;
355 bool offset_sign;
356
357 assert(i);
358
359 /*
360 * "Timestamp Name ID When Generated
361 * ------------------------------------------------------------
362 * Originate Timestamp T1 time request sent by client
363 * Receive Timestamp T2 time request received by server
364 * Transmit Timestamp T3 time reply sent by server
365 * Destination Timestamp T4 time reply received by client
366 *
367 * The round-trip delay, d, and system clock offset, t, are defined as:
368 * d = (T4 - T1) - (T3 - T2) t = ((T2 - T1) + (T3 - T4)) / 2"
369 */
370
371 printf(" Server: %s (%s)\n",
372 i->server_address, i->server_name);
373 printf("Poll interval: %s (min: %s; max %s)\n",
374 format_timespan(ts, sizeof(ts), i->poll_interval, 0),
375 format_timespan(tmin, sizeof(tmin), i->poll_min, 0),
376 format_timespan(tmax, sizeof(tmax), i->poll_max, 0));
377
378 if (i->packet_count == 0) {
379 printf(" Packet count: 0\n");
380 return;
381 }
382
383 if (i->dest < i->origin || i->trans < i->recv || i->dest - i->origin < i->trans - i->recv) {
384 log_error("Invalid NTP response");
385 return;
386 }
387
388 delay = (i->dest - i->origin) - (i->trans - i->recv);
389
390 t14 = i->origin + i->dest;
391 t23 = i->recv + i->trans;
392 offset_sign = t14 < t23;
393 offset = (offset_sign ? t23 - t14 : t14 - t23) / 2;
394
395 root_distance = i->root_delay / 2 + i->root_dispersion;
396
397 printf(" Leap: %s\n"
398 " Version: %" PRIu32 "\n"
399 " Stratum: %" PRIu32 "\n",
400 ntp_leap_to_string(i->leap),
401 i->version,
402 i->stratum);
403 if (i->stratum <= 1)
404 printf(" Reference: %s\n", i->reference.str);
405 else
406 printf(" Reference: %" PRIX32 "\n", be32toh(i->reference.val));
407 printf(" Precision: %s (%" PRIi32 ")\n",
408 format_timespan(ts, sizeof(ts), DIV_ROUND_UP((nsec_t) (exp2(i->precision) * NSEC_PER_SEC), NSEC_PER_USEC), 0),
409 i->precision);
410 printf("Root distance: %s (max: %s)\n",
411 format_timespan(ts, sizeof(ts), root_distance, 0),
412 format_timespan(tmax, sizeof(tmax), i->root_distance_max, 0));
413 printf(" Offset: %s%s\n",
414 offset_sign ? "+" : "-",
415 format_timespan(ts, sizeof(ts), offset, 0));
416 printf(" Delay: %s\n",
417 format_timespan(ts, sizeof(ts), delay, 0));
418 printf(" Jitter: %s\n",
419 format_timespan(ts, sizeof(ts), i->jitter, 0));
420 printf(" Packet count: %" PRIu64 "\n", i->packet_count);
421
422 if (!i->spike)
423 printf(" Frequency: %+.3fppm\n",
424 (double) i->freq / 0x10000);
425 }
426
427 static int map_server_address(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
428 char **p = (char **) userdata;
429 const void *d;
430 int family, r;
431 size_t sz;
432
433 assert(p);
434
435 r = sd_bus_message_enter_container(m, 'r', "iay");
436 if (r < 0)
437 return r;
438
439 r = sd_bus_message_read(m, "i", &family);
440 if (r < 0)
441 return r;
442
443 r = sd_bus_message_read_array(m, 'y', &d, &sz);
444 if (r < 0)
445 return r;
446
447 r = sd_bus_message_exit_container(m);
448 if (r < 0)
449 return r;
450
451 if (sz == 0 && family == AF_UNSPEC) {
452 *p = mfree(*p);
453 return 0;
454 }
455
456 if (!IN_SET(family, AF_INET, AF_INET6))
457 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
458 "Unknown address family %i", family);
459
460 if (sz != FAMILY_ADDRESS_SIZE(family))
461 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
462 "Invalid address size");
463
464 r = in_addr_to_string(family, d, p);
465 if (r < 0)
466 return r;
467
468 return 0;
469 }
470
471 static int map_ntp_message(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
472 NTPStatusInfo *p = userdata;
473 const void *d;
474 size_t sz;
475 int32_t b;
476 int r;
477
478 assert(p);
479
480 r = sd_bus_message_enter_container(m, 'r', "uuuuittayttttbtt");
481 if (r < 0)
482 return r;
483
484 r = sd_bus_message_read(m, "uuuuitt",
485 &p->leap, &p->version, &p->mode, &p->stratum, &p->precision,
486 &p->root_delay, &p->root_dispersion);
487 if (r < 0)
488 return r;
489
490 r = sd_bus_message_read_array(m, 'y', &d, &sz);
491 if (r < 0)
492 return r;
493
494 r = sd_bus_message_read(m, "ttttbtt",
495 &p->origin, &p->recv, &p->trans, &p->dest,
496 &b, &p->packet_count, &p->jitter);
497 if (r < 0)
498 return r;
499
500 r = sd_bus_message_exit_container(m);
501 if (r < 0)
502 return r;
503
504 if (sz != 4)
505 return -EINVAL;
506
507 memcpy(p->reference.str, d, sz);
508
509 p->spike = b;
510
511 return 0;
512 }
513
514 static int show_timesync_status_once(sd_bus *bus) {
515 static const struct bus_properties_map map_timesync[] = {
516 { "ServerName", "s", NULL, offsetof(NTPStatusInfo, server_name) },
517 { "ServerAddress", "(iay)", map_server_address, offsetof(NTPStatusInfo, server_address) },
518 { "PollIntervalUSec", "t", NULL, offsetof(NTPStatusInfo, poll_interval) },
519 { "PollIntervalMinUSec", "t", NULL, offsetof(NTPStatusInfo, poll_min) },
520 { "PollIntervalMaxUSec", "t", NULL, offsetof(NTPStatusInfo, poll_max) },
521 { "RootDistanceMaxUSec", "t", NULL, offsetof(NTPStatusInfo, root_distance_max) },
522 { "NTPMessage", "(uuuuittayttttbtt)", map_ntp_message, 0 },
523 { "Frequency", "x", NULL, offsetof(NTPStatusInfo, freq) },
524 {}
525 };
526 _cleanup_(ntp_status_info_clear) NTPStatusInfo info = {};
527 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
528 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
529 int r;
530
531 assert(bus);
532
533 r = bus_map_all_properties(bus,
534 "org.freedesktop.timesync1",
535 "/org/freedesktop/timesync1",
536 map_timesync,
537 BUS_MAP_BOOLEAN_AS_BOOL,
538 &error,
539 &m,
540 &info);
541 if (r < 0)
542 return log_error_errno(r, "Failed to query server: %s", bus_error_message(&error, r));
543
544 if (arg_monitor && !terminal_is_dumb())
545 fputs(ANSI_HOME_CLEAR, stdout);
546
547 print_ntp_status_info(&info);
548
549 return 0;
550 }
551
552 static int on_properties_changed(sd_bus_message *m, void *userdata, sd_bus_error *error) {
553 const char *name;
554 int r;
555
556 assert(m);
557
558 r = sd_bus_message_read(m, "s", &name);
559 if (r < 0)
560 return log_error_errno(r, "Failed to read interface name: %m");
561
562 if (!streq_ptr(name, "org.freedesktop.timesync1.Manager"))
563 return 0;
564
565 return show_timesync_status_once(sd_bus_message_get_bus(m));
566 }
567
568 static int show_timesync_status(int argc, char **argv, void *userdata) {
569 _cleanup_(sd_event_unrefp) sd_event *event = NULL;
570 sd_bus *bus = userdata;
571 int r;
572
573 assert(bus);
574
575 r = show_timesync_status_once(bus);
576 if (r < 0)
577 return r;
578
579 if (!arg_monitor)
580 return 0;
581
582 r = sd_event_default(&event);
583 if (r < 0)
584 return log_error_errno(r, "Failed to get event loop: %m");
585
586 r = sd_bus_match_signal(bus,
587 NULL,
588 "org.freedesktop.timesync1",
589 "/org/freedesktop/timesync1",
590 "org.freedesktop.DBus.Properties",
591 "PropertiesChanged",
592 on_properties_changed, NULL);
593 if (r < 0)
594 return log_error_errno(r, "Failed to request match for PropertiesChanged signal: %m");
595
596 r = sd_bus_attach_event(bus, event, SD_EVENT_PRIORITY_NORMAL);
597 if (r < 0)
598 return log_error_errno(r, "Failed to attach bus to event loop: %m");
599
600 r = sd_event_loop(event);
601 if (r < 0)
602 return log_error_errno(r, "Failed to run event loop: %m");
603
604 return 0;
605 }
606
607 static int print_timesync_property(const char *name, const char *expected_value, sd_bus_message *m, bool value, bool all) {
608 char type;
609 const char *contents;
610 int r;
611
612 assert(name);
613 assert(m);
614
615 r = sd_bus_message_peek_type(m, &type, &contents);
616 if (r < 0)
617 return r;
618
619 switch (type) {
620
621 case SD_BUS_TYPE_STRUCT:
622 if (streq(name, "NTPMessage")) {
623 _cleanup_(ntp_status_info_clear) NTPStatusInfo i = {};
624 char ts[FORMAT_TIMESPAN_MAX], stamp[FORMAT_TIMESTAMP_MAX];
625
626 r = map_ntp_message(NULL, NULL, m, NULL, &i);
627 if (r < 0)
628 return r;
629
630 if (i.packet_count == 0)
631 return 1;
632
633 if (!value) {
634 fputs(name, stdout);
635 fputc('=', stdout);
636 }
637
638 printf("{ Leap=%u, Version=%u, Mode=%u, Stratum=%u, Precision=%i,",
639 i.leap, i.version, i.mode, i.stratum, i.precision);
640 printf(" RootDelay=%s,",
641 format_timespan(ts, sizeof(ts), i.root_delay, 0));
642 printf(" RootDispersion=%s,",
643 format_timespan(ts, sizeof(ts), i.root_dispersion, 0));
644
645 if (i.stratum == 1)
646 printf(" Reference=%s,", i.reference.str);
647 else
648 printf(" Reference=%" PRIX32 ",", be32toh(i.reference.val));
649
650 printf(" OriginateTimestamp=%s,",
651 format_timestamp(stamp, sizeof(stamp), i.origin));
652 printf(" ReceiveTimestamp=%s,",
653 format_timestamp(stamp, sizeof(stamp), i.recv));
654 printf(" TransmitTimestamp=%s,",
655 format_timestamp(stamp, sizeof(stamp), i.trans));
656 printf(" DestinationTimestamp=%s,",
657 format_timestamp(stamp, sizeof(stamp), i.dest));
658 printf(" Ignored=%s PacketCount=%" PRIu64 ",",
659 yes_no(i.spike), i.packet_count);
660 printf(" Jitter=%s }\n",
661 format_timespan(ts, sizeof(ts), i.jitter, 0));
662
663 return 1;
664
665 } else if (streq(name, "ServerAddress")) {
666 _cleanup_free_ char *str = NULL;
667
668 r = map_server_address(NULL, NULL, m, NULL, &str);
669 if (r < 0)
670 return r;
671
672 if (arg_all || !isempty(str))
673 bus_print_property_value(name, expected_value, value, str);
674
675 return 1;
676 }
677 break;
678 }
679
680 return 0;
681 }
682
683 static int show_timesync(int argc, char **argv, void *userdata) {
684 sd_bus *bus = userdata;
685 int r;
686
687 assert(bus);
688
689 r = bus_print_all_properties(bus,
690 "org.freedesktop.timesync1",
691 "/org/freedesktop/timesync1",
692 print_timesync_property,
693 arg_property,
694 arg_value,
695 arg_all,
696 NULL);
697 if (r < 0)
698 return bus_log_parse_error(r);
699
700 return 0;
701 }
702
703 static int parse_ifindex_bus(sd_bus *bus, const char *str, int *ret) {
704 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
705 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
706 int32_t i;
707 int r;
708
709 assert(bus);
710 assert(str);
711 assert(ret);
712
713 r = parse_ifindex(str, ret);
714 if (r >= 0)
715 return 0;
716
717 r = sd_bus_call_method(
718 bus,
719 "org.freedesktop.network1",
720 "/org/freedesktop/network1",
721 "org.freedesktop.network1.Manager",
722 "GetLinkByName",
723 &error,
724 &reply,
725 "s", str);
726 if (r < 0)
727 return log_error_errno(r, "Failed to get ifindex of interfaces %s: %s", str, bus_error_message(&error, r));
728
729 r = sd_bus_message_read(reply, "io", &i, NULL);
730 if (r < 0)
731 return bus_log_create_error(r);
732
733 *ret = i;
734 return 0;
735 }
736
737 static int verb_ntp_servers(int argc, char **argv, void *userdata) {
738 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
739 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL;
740 sd_bus *bus = userdata;
741 int ifindex, r;
742
743 assert(bus);
744
745 r = parse_ifindex_bus(bus, argv[1], &ifindex);
746 if (r < 0)
747 return r;
748
749 polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
750
751 r = sd_bus_message_new_method_call(
752 bus,
753 &req,
754 "org.freedesktop.network1",
755 "/org/freedesktop/network1",
756 "org.freedesktop.network1.Manager",
757 "SetLinkNTP");
758 if (r < 0)
759 return bus_log_create_error(r);
760
761 r = sd_bus_message_append(req, "i", ifindex);
762 if (r < 0)
763 return bus_log_create_error(r);
764
765 r = sd_bus_message_append_strv(req, argv + 2);
766 if (r < 0)
767 return bus_log_create_error(r);
768
769 r = sd_bus_call(bus, req, 0, &error, NULL);
770 if (r < 0)
771 return log_error_errno(r, "Failed to set NTP servers: %s", bus_error_message(&error, r));
772
773 return 0;
774 }
775
776 static int verb_revert(int argc, char **argv, void *userdata) {
777 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
778 sd_bus *bus = userdata;
779 int ifindex, r;
780
781 assert(bus);
782
783 r = parse_ifindex_bus(bus, argv[1], &ifindex);
784 if (r < 0)
785 return r;
786
787 polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
788
789 r = sd_bus_call_method(
790 bus,
791 "org.freedesktop.network1",
792 "/org/freedesktop/network1",
793 "org.freedesktop.network1.Manager",
794 "RevertLinkNTP",
795 &error,
796 NULL,
797 "i", ifindex);
798 if (r < 0)
799 return log_error_errno(r, "Failed to revert interface configuration: %s", bus_error_message(&error, r));
800
801 return 0;
802 }
803
804 static int help(void) {
805 _cleanup_free_ char *link = NULL;
806 int r;
807
808 r = terminal_urlify_man("timedatectl", "1", &link);
809 if (r < 0)
810 return log_oom();
811
812 printf("%s [OPTIONS...] COMMAND ...\n\n"
813 "Query or change system time and date settings.\n"
814 "\nCommands:\n"
815 " status Show current time settings\n"
816 " show Show properties of systemd-timedated\n"
817 " set-time TIME Set system time\n"
818 " set-timezone ZONE Set system time zone\n"
819 " list-timezones Show known time zones\n"
820 " set-local-rtc BOOL Control whether RTC is in local time\n"
821 " set-ntp BOOL Enable or disable network time synchronization\n"
822 "\n"
823 "systemd-timesyncd Commands:\n"
824 " timesync-status Show status of systemd-timesyncd\n"
825 " show-timesync Show properties of systemd-timesyncd\n"
826 "\nOptions\n"
827 " -h --help Show this help message\n"
828 " --version Show package version\n"
829 " --no-pager Do not pipe output into a pager\n"
830 " --no-ask-password Do not prompt for password\n"
831 " -H --host=[USER@]HOST Operate on remote host\n"
832 " -M --machine=CONTAINER Operate on local container\n"
833 " --adjust-system-clock Adjust system clock when changing local RTC mode\n"
834 " --monitor Monitor status of systemd-timesyncd\n"
835 " -p --property=NAME Show only properties by this name\n"
836 " -a --all Show all properties, including empty ones\n"
837 " --value When showing properties, only print the value\n"
838 "\nSee the %s for details.\n"
839 , program_invocation_short_name
840 , link
841 );
842
843 return 0;
844 }
845
846 static int verb_help(int argc, char **argv, void *userdata) {
847 return help();
848 }
849
850 static int parse_argv(int argc, char *argv[]) {
851
852 enum {
853 ARG_VERSION = 0x100,
854 ARG_NO_PAGER,
855 ARG_ADJUST_SYSTEM_CLOCK,
856 ARG_NO_ASK_PASSWORD,
857 ARG_MONITOR,
858 ARG_VALUE,
859 };
860
861 static const struct option options[] = {
862 { "help", no_argument, NULL, 'h' },
863 { "version", no_argument, NULL, ARG_VERSION },
864 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
865 { "host", required_argument, NULL, 'H' },
866 { "machine", required_argument, NULL, 'M' },
867 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
868 { "adjust-system-clock", no_argument, NULL, ARG_ADJUST_SYSTEM_CLOCK },
869 { "monitor", no_argument, NULL, ARG_MONITOR },
870 { "property", required_argument, NULL, 'p' },
871 { "all", no_argument, NULL, 'a' },
872 { "value", no_argument, NULL, ARG_VALUE },
873 {}
874 };
875
876 int c, r;
877
878 assert(argc >= 0);
879 assert(argv);
880
881 while ((c = getopt_long(argc, argv, "hH:M:p:a", options, NULL)) >= 0)
882
883 switch (c) {
884
885 case 'h':
886 return help();
887
888 case ARG_VERSION:
889 return version();
890
891 case 'H':
892 arg_transport = BUS_TRANSPORT_REMOTE;
893 arg_host = optarg;
894 break;
895
896 case 'M':
897 arg_transport = BUS_TRANSPORT_MACHINE;
898 arg_host = optarg;
899 break;
900
901 case ARG_NO_ASK_PASSWORD:
902 arg_ask_password = false;
903 break;
904
905 case ARG_ADJUST_SYSTEM_CLOCK:
906 arg_adjust_system_clock = true;
907 break;
908
909 case ARG_NO_PAGER:
910 arg_pager_flags |= PAGER_DISABLE;
911 break;
912
913 case ARG_MONITOR:
914 arg_monitor = true;
915 break;
916
917 case 'p': {
918 r = strv_extend(&arg_property, optarg);
919 if (r < 0)
920 return log_oom();
921
922 /* If the user asked for a particular
923 * property, show it to him, even if it is
924 * empty. */
925 arg_all = true;
926 break;
927 }
928
929 case 'a':
930 arg_all = true;
931 break;
932
933 case ARG_VALUE:
934 arg_value = true;
935 break;
936
937 case '?':
938 return -EINVAL;
939
940 default:
941 assert_not_reached("Unhandled option");
942 }
943
944 return 1;
945 }
946
947 static int timedatectl_main(sd_bus *bus, int argc, char *argv[]) {
948 static const Verb verbs[] = {
949 { "status", VERB_ANY, 1, VERB_DEFAULT, show_status },
950 { "show", VERB_ANY, 1, 0, show_properties },
951 { "set-time", 2, 2, 0, set_time },
952 { "set-timezone", 2, 2, 0, set_timezone },
953 { "list-timezones", VERB_ANY, 1, 0, list_timezones },
954 { "set-local-rtc", 2, 2, 0, set_local_rtc },
955 { "set-ntp", 2, 2, 0, set_ntp },
956 { "timesync-status", VERB_ANY, 1, 0, show_timesync_status },
957 { "show-timesync", VERB_ANY, 1, 0, show_timesync },
958 { "ntp-servers", 3, VERB_ANY, 0, verb_ntp_servers },
959 { "revert", 2, 2, 0, verb_revert },
960 { "help", VERB_ANY, VERB_ANY, 0, verb_help }, /* Not documented, but supported since it is created. */
961 {}
962 };
963
964 return dispatch_verb(argc, argv, verbs, bus);
965 }
966
967 static int run(int argc, char *argv[]) {
968 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
969 int r;
970
971 setlocale(LC_ALL, "");
972 log_show_color(true);
973 log_parse_environment();
974 log_open();
975
976 r = parse_argv(argc, argv);
977 if (r <= 0)
978 return r;
979
980 r = bus_connect_transport(arg_transport, arg_host, false, &bus);
981 if (r < 0)
982 return log_error_errno(r, "Failed to create bus connection: %m");
983
984 return timedatectl_main(bus, argc, argv);
985 }
986
987 DEFINE_MAIN_FUNCTION(run);
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