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Merge pull request #23087 from yuwata/udev-watch
[thirdparty/systemd.git] / src / timedate / timedatectl.c
CommitLineData
db9ecf05 1/* SPDX-License-Identifier: LGPL-2.1-or-later */
6d0274f1 2
6d0274f1 3#include <getopt.h>
a9cdc94f 4#include <locale.h>
6129ec85 5#include <math.h>
3f6fd1ba
LP		 6#include <stdbool.h>
7#include <stdlib.h>
6d0274f1 8
a281d9c7 9#include "sd-bus.h"
3f6fd1ba 10
a281d9c7 11#include "bus-error.h"
9b71e4ab 12#include "bus-locator.h"
807542be 13#include "bus-map-properties.h"
9176326b 14#include "bus-print-properties.h"
063f9f0d 15#include "env-util.h"
cf57766d 16#include "format-table.h"
6129ec85 17#include "in-addr-util.h"
50378e5d 18#include "main-func.h"
3f6fd1ba 19#include "pager.h"
6bedfcbb 20#include "parse-util.h"
294bf0c3 21#include "pretty-print.h"
6129ec85 22#include "sparse-endian.h"
9b71e4ab 23#include "spawn-polkit-agent.h"
6129ec85 24#include "string-table.h"
6d0274f1 25#include "strv.h"
288a74cc 26#include "terminal-util.h"
3f6fd1ba 27#include "util.h"
be90a886 28#include "verbs.h"
6d0274f1 29
0221d68a 30static PagerFlags arg_pager_flags = 0;
6d0274f1 31static bool arg_ask_password = true;
e1636421 32static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
7085053a 33static char *arg_host = NULL;
e1636421 34static bool arg_adjust_system_clock = false;
6129ec85
YW		 35static bool arg_monitor = false;
36static char **arg_property = NULL;
255b1fc8 37static BusPrintPropertyFlags arg_print_flags = 0;
6d0274f1 38
6d0274f1 39typedef struct StatusInfo {
2f6a5907 40 usec_t time;
f37f8a61 41 const char *timezone;
2f6a5907
KS		 42
43 usec_t rtc_time;
f37f8a61 44 bool rtc_local;
2f6a5907 45
f37f8a61 46 bool ntp_capable;
f567f086 47 bool ntp_active;
f37f8a61 48 bool ntp_synced;
6d0274f1
LP		 49} StatusInfo;
50
cf57766d
YW		 51static int print_status_info(const StatusInfo *i) {
52 _cleanup_(table_unrefp) Table *table = NULL;
437f48a4 53 const char *old_tz = NULL, *tz, *tz_colon;
f567f086 54 bool have_time = false;
14ce0c25 55 char a[LINE_MAX];
cf57766d 56 TableCell *cell;
6d0274f1
LP		 57 struct tm tm;
58 time_t sec;
14ce0c25 59 size_t n;
f567f086 60 int r;
6d0274f1 61
59965986
LP		 62 assert(i);
63
cf57766d
YW		 64 table = table_new("key", "value");
65 if (!table)
66 return log_oom();
67
68 table_set_header(table, false);
69
70 assert_se(cell = table_get_cell(table, 0, 0));
71 (void) table_set_ellipsize_percent(table, cell, 100);
72 (void) table_set_align_percent(table, cell, 100);
73
74 assert_se(cell = table_get_cell(table, 0, 1));
75 (void) table_set_ellipsize_percent(table, cell, 100);
76
d95a74ed
LP		 77 /* Save the old $TZ */
78 tz = getenv("TZ");
79 if (tz)
2f82562b 80 old_tz = strdupa_safe(tz);
2311eb2f 81
d95a74ed 82 /* Set the new $TZ */
437f48a4
LP		 83 tz_colon = strjoina(":", isempty(i->timezone) ? "UTC" : i->timezone);
84 if (setenv("TZ", tz_colon, true) < 0)
d95a74ed
LP		 85 log_warning_errno(errno, "Failed to set TZ environment variable, ignoring: %m");
86 else
87 tzset();
3e5e74d5 88
9ff09bcb
SL		 89 if (i->time != 0) {
90 sec = (time_t) (i->time / USEC_PER_SEC);
91 have_time = true;
d95a74ed 92 } else if (IN_SET(arg_transport, BUS_TRANSPORT_LOCAL, BUS_TRANSPORT_MACHINE)) {
9ff09bcb
SL		 93 sec = time(NULL);
94 have_time = true;
95 } else
d95a74ed 96 log_warning("Could not get time from timedated and not operating locally, ignoring.");
6d0274f1 97
a03e335b 98 n = have_time ? strftime(a, sizeof a, "%a %Y-%m-%d %H:%M:%S %Z", localtime_r(&sec, &tm)) : 0;
cf57766d
YW		 99 r = table_add_many(table,
100 TABLE_STRING, "Local time:",
a03e335b 101 TABLE_STRING, n > 0 ? a : "n/a");
cf57766d 102 if (r < 0)
bd17fa8c 103 return table_log_add_error(r);
cf57766d 104
a03e335b 105 n = have_time ? strftime(a, sizeof a, "%a %Y-%m-%d %H:%M:%S UTC", gmtime_r(&sec, &tm)) : 0;
cf57766d
YW		 106 r = table_add_many(table,
107 TABLE_STRING, "Universal time:",
a03e335b 108 TABLE_STRING, n > 0 ? a : "n/a");
cf57766d 109 if (r < 0)
bd17fa8c 110 return table_log_add_error(r);
6d0274f1 111
2f6a5907
KS		 112 if (i->rtc_time > 0) {
113 time_t rtc_sec;
6d0274f1 114
d95a74ed 115 rtc_sec = (time_t) (i->rtc_time / USEC_PER_SEC);
14ce0c25 116 n = strftime(a, sizeof a, "%a %Y-%m-%d %H:%M:%S", gmtime_r(&rtc_sec, &tm));
a03e335b
ZJS		 117 } else
118 n = 0;
cf57766d
YW		 119 r = table_add_many(table,
120 TABLE_STRING, "RTC time:",
a03e335b 121 TABLE_STRING, n > 0 ? a : "n/a");
cf57766d 122 if (r < 0)
bd17fa8c 123 return table_log_add_error(r);
6d0274f1 124
cf57766d
YW		 125 r = table_add_cell(table, NULL, TABLE_STRING, "Time zone:");
126 if (r < 0)
bd17fa8c 127 return table_log_add_error(r);
cf57766d 128
a03e335b
ZJS		 129 n = have_time ? strftime(a, sizeof a, "%Z, %z", localtime_r(&sec, &tm)) : 0;
130 r = table_add_cell_stringf(table, NULL, "%s (%s)", strna(i->timezone), n > 0 ? a : "n/a");
cf57766d 131 if (r < 0)
bd17fa8c 132 return table_log_add_error(r);
cf57766d 133
d95a74ed 134 /* Restore the $TZ */
063f9f0d 135 r = set_unset_env("TZ", old_tz, true);
d95a74ed 136 if (r < 0)
063f9f0d 137 log_warning_errno(r, "Failed to set TZ environment variable, ignoring: %m");
d95a74ed
LP		 138 else
139 tzset();
140
cf57766d
YW		 141 r = table_add_many(table,
142 TABLE_STRING, "System clock synchronized:",
143 TABLE_BOOLEAN, i->ntp_synced,
144 TABLE_STRING, "NTP service:",
145 TABLE_STRING, i->ntp_capable ? (i->ntp_active ? "active" : "inactive") : "n/a",
146 TABLE_STRING, "RTC in local TZ:",
147 TABLE_BOOLEAN, i->rtc_local);
148 if (r < 0)
bd17fa8c 149 return table_log_add_error(r);
cf57766d
YW		 150
151 r = table_print(table, NULL);
152 if (r < 0)
4b6607d9 153 return table_log_print_error(r);
6d0274f1 154
2f6a5907 155 if (i->rtc_local)
54f8c958
LP		 156 printf("\n%s"
157 "Warning: The system is configured to read the RTC time in the local time zone.\n"
87ac8d99 158 " This mode cannot be fully supported. It will create various problems\n"
54f8c958
LP		 159 " with time zone changes and daylight saving time adjustments. The RTC\n"
160 " time is never updated, it relies on external facilities to maintain it.\n"
161 " If at all possible, use RTC in UTC by calling\n"
162 " 'timedatectl set-local-rtc 0'.%s\n", ansi_highlight(), ansi_normal());
cf57766d
YW		 163
164 return 0;
6d0274f1
LP		 165}
166
be90a886 167static int show_status(int argc, char **argv, void *userdata) {
f37f8a61 168 StatusInfo info = {};
9f6eb1cd 169 static const struct bus_properties_map map[] = {
f567f086
YW		 170 { "Timezone", "s", NULL, offsetof(StatusInfo, timezone) },
171 { "LocalRTC", "b", NULL, offsetof(StatusInfo, rtc_local) },
172 { "NTP", "b", NULL, offsetof(StatusInfo, ntp_active) },
9f6eb1cd 173 { "CanNTP", "b", NULL, offsetof(StatusInfo, ntp_capable) },
f567f086
YW		 174 { "NTPSynchronized", "b", NULL, offsetof(StatusInfo, ntp_synced) },
175 { "TimeUSec", "t", NULL, offsetof(StatusInfo, time) },
176 { "RTCTimeUSec", "t", NULL, offsetof(StatusInfo, rtc_time) },
ffc06c35
KS		 177 {}
178 };
f9e0eefc
LP		 179
180 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
f37f8a61 181 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
be90a886 182 sd_bus *bus = userdata;
ffc06c35 183 int r;
6d0274f1 184
a281d9c7 185 assert(bus);
6d0274f1 186
ffc06c35
KS		 187 r = bus_map_all_properties(bus,
188 "org.freedesktop.timedate1",
189 "/org/freedesktop/timedate1",
9f6eb1cd 190 map,
a7e4861c 191 BUS_MAP_BOOLEAN_AS_BOOL,
f9e0eefc 192 &error,
f37f8a61 193 &m,
9f6eb1cd 194 &info);
e7e55dbd 195 if (r < 0)
f9e0eefc 196 return log_error_errno(r, "Failed to query server: %s", bus_error_message(&error, r));
6d0274f1 197
cf57766d 198 return print_status_info(&info);
6d0274f1
LP		 199}
200
ead0adb1
YW		 201static int show_properties(int argc, char **argv, void *userdata) {
202 sd_bus *bus = userdata;
203 int r;
204
205 assert(bus);
206
207 r = bus_print_all_properties(bus,
208 "org.freedesktop.timedate1",
209 "/org/freedesktop/timedate1",
210 NULL,
211 arg_property,
255b1fc8 212 arg_print_flags,
ead0adb1
YW		 213 NULL);
214 if (r < 0)
215 return bus_log_parse_error(r);
216
217 return 0;
218}
219
be90a886 220static int set_time(int argc, char **argv, void *userdata) {
4afd3348 221 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
a281d9c7 222 bool relative = false, interactive = arg_ask_password;
be90a886 223 sd_bus *bus = userdata;
6d0274f1 224 usec_t t;
6d0274f1
LP		 225 int r;
226
8a4b13c5 227 polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
6d0274f1 228
be90a886
YW		 229 r = parse_timestamp(argv[1], &t);
230 if (r < 0)
231 return log_error_errno(r, "Failed to parse time specification '%s': %m", argv[1]);
6d0274f1 232
43fe4f76
VC		 233 r = bus_call_method(
234 bus,
235 bus_timedate,
236 "SetTime",
237 &error,
238 NULL,
239 "xbb", (int64_t) t, relative, interactive);
a281d9c7 240 if (r < 0)
4ae25393 241 return log_error_errno(r, "Failed to set time: %s", bus_error_message(&error, r));
a281d9c7 242
4ae25393 243 return 0;
6d0274f1
LP		 244}
245
be90a886 246static int set_timezone(int argc, char **argv, void *userdata) {
4afd3348 247 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
be90a886 248 sd_bus *bus = userdata;
a281d9c7 249 int r;
6d0274f1 250
8a4b13c5 251 polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
6d0274f1 252
43fe4f76 253 r = bus_call_method(bus, bus_timedate, "SetTimezone", &error, NULL, "sb", argv[1], arg_ask_password);
a281d9c7 254 if (r < 0)
4ae25393 255 return log_error_errno(r, "Failed to set time zone: %s", bus_error_message(&error, r));
a281d9c7 256
4ae25393 257 return 0;
6d0274f1
LP		 258}
259
be90a886 260static int set_local_rtc(int argc, char **argv, void *userdata) {
4afd3348 261 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
be90a886 262 sd_bus *bus = userdata;
e5609878 263 int r, b;
6d0274f1 264
8a4b13c5 265 polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
6d0274f1 266
be90a886
YW		 267 b = parse_boolean(argv[1]);
268 if (b < 0)
269 return log_error_errno(b, "Failed to parse local RTC setting '%s': %m", argv[1]);
6d0274f1 270
43fe4f76
VC		 271 r = bus_call_method(
272 bus,
273 bus_timedate,
274 "SetLocalRTC",
275 &error,
276 NULL,
277 "bbb", b, arg_adjust_system_clock, arg_ask_password);
a281d9c7 278 if (r < 0)
4ae25393 279 return log_error_errno(r, "Failed to set local RTC: %s", bus_error_message(&error, r));
a281d9c7 280
4ae25393 281 return 0;
6d0274f1
LP		 282}
283
be90a886 284static int set_ntp(int argc, char **argv, void *userdata) {
4afd3348 285 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
be90a886 286 sd_bus *bus = userdata;
e5609878 287 int b, r;
6d0274f1 288
8a4b13c5 289 polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
6d0274f1 290
be90a886
YW		 291 b = parse_boolean(argv[1]);
292 if (b < 0)
293 return log_error_errno(b, "Failed to parse NTP setting '%s': %m", argv[1]);
6d0274f1 294
43fe4f76 295 r = bus_call_method(bus, bus_timedate, "SetNTP", &error, NULL, "bb", b, arg_ask_password);
a281d9c7 296 if (r < 0)
4ae25393 297 return log_error_errno(r, "Failed to set ntp: %s", bus_error_message(&error, r));
a281d9c7 298
4ae25393 299 return 0;
6d0274f1
LP		 300}
301
be90a886 302static int list_timezones(int argc, char **argv, void *userdata) {
2cf0b2fe
NT		 303 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
304 sd_bus *bus = userdata;
305 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
75683450 306 int r;
a2e37d52 307 _cleanup_strv_free_ char **zones = NULL;
2cf0b2fe 308
43fe4f76 309 r = bus_call_method(bus, bus_timedate, "ListTimezones", &error, &reply, NULL);
2cf0b2fe
NT		 310 if (r < 0)
311 return log_error_errno(r, "Failed to request list of time zones: %s",
312 bus_error_message(&error, r));
6d0274f1 313
2cf0b2fe 314 r = sd_bus_message_read_strv(reply, &zones);
f647962d 315 if (r < 0)
2cf0b2fe 316 return bus_log_parse_error(r);
6d0274f1 317
384c2c32 318 pager_open(arg_pager_flags);
7c2d8094 319 strv_print(zones);
6d0274f1
LP		 320
321 return 0;
322}
323
6129ec85
YW		 324typedef struct NTPStatusInfo {
325 const char *server_name;
326 char *server_address;
327 usec_t poll_interval, poll_max, poll_min;
328 usec_t root_distance_max;
329
330 uint32_t leap, version, mode, stratum;
331 int32_t precision;
332 usec_t root_delay, root_dispersion;
333 union {
334 char str[5];
335 uint32_t val;
336 } reference;
337 usec_t origin, recv, trans, dest;
338
339 bool spike;
340 uint64_t packet_count;
341 usec_t jitter;
342
343 int64_t freq;
344} NTPStatusInfo;
345
346static void ntp_status_info_clear(NTPStatusInfo *p) {
347 p->server_address = mfree(p->server_address);
348}
349
350static const char * const ntp_leap_table[4] = {
351 [0] = "normal",
352 [1] = "last minute of the day has 61 seconds",
353 [2] = "last minute of the day has 59 seconds",
354 [3] = "not synchronized",
355};
356
6028d766 357DISABLE_WARNING_TYPE_LIMITS;
6129ec85 358DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(ntp_leap, uint32_t);
6028d766 359REENABLE_WARNING;
6129ec85 360
cf57766d 361static int print_ntp_status_info(NTPStatusInfo *i) {
6129ec85 362 usec_t delay, t14, t23, offset, root_distance;
cf57766d 363 _cleanup_(table_unrefp) Table *table = NULL;
6129ec85 364 bool offset_sign;
cf57766d
YW		 365 TableCell *cell;
366 int r;
6129ec85
YW		 367
368 assert(i);
369
cf57766d
YW		 370 table = table_new("key", "value");
371 if (!table)
372 return log_oom();
373
374 table_set_header(table, false);
375
376 assert_se(cell = table_get_cell(table, 0, 0));
377 (void) table_set_ellipsize_percent(table, cell, 100);
378 (void) table_set_align_percent(table, cell, 100);
379
380 assert_se(cell = table_get_cell(table, 0, 1));
381 (void) table_set_ellipsize_percent(table, cell, 100);
382
6129ec85
YW		 383 /*
384 * "Timestamp Name ID When Generated
385 * ------------------------------------------------------------
386 * Originate Timestamp T1 time request sent by client
387 * Receive Timestamp T2 time request received by server
388 * Transmit Timestamp T3 time reply sent by server
389 * Destination Timestamp T4 time reply received by client
390 *
391 * The round-trip delay, d, and system clock offset, t, are defined as:
392 * d = (T4 - T1) - (T3 - T2) t = ((T2 - T1) + (T3 - T4)) / 2"
393 */
394
cf57766d
YW		 395 r = table_add_cell(table, NULL, TABLE_STRING, "Server:");
396 if (r < 0)
bd17fa8c 397 return table_log_add_error(r);
cf57766d 398
94ec163a 399 r = table_add_cell_stringf(table, NULL, "%s (%s)", strna(i->server_address), strna(i->server_name));
cf57766d 400 if (r < 0)
bd17fa8c 401 return table_log_add_error(r);
cf57766d
YW		 402
403 r = table_add_cell(table, NULL, TABLE_STRING, "Poll interval:");
404 if (r < 0)
bd17fa8c 405 return table_log_add_error(r);
cf57766d
YW		 406
407 r = table_add_cell_stringf(table, NULL, "%s (min: %s; max %s)",
5291f26d
ZJS		 408 FORMAT_TIMESPAN(i->poll_interval, 0),
409 FORMAT_TIMESPAN(i->poll_min, 0),
410 FORMAT_TIMESPAN(i->poll_max, 0));
cf57766d 411 if (r < 0)
bd17fa8c 412 return table_log_add_error(r);
6129ec85
YW		 413
414 if (i->packet_count == 0) {
cf57766d
YW		 415 r = table_add_many(table,
416 TABLE_STRING, "Packet count:",
417 TABLE_STRING, "0");
418 if (r < 0)
bd17fa8c 419 return table_log_add_error(r);
cf57766d
YW		 420
421 r = table_print(table, NULL);
422 if (r < 0)
4b6607d9 423 return table_log_print_error(r);
cf57766d
YW		 424
425 return 0;
6129ec85
YW		 426 }
427
428 if (i->dest < i->origin || i->trans < i->recv || i->dest - i->origin < i->trans - i->recv) {
429 log_error("Invalid NTP response");
cf57766d
YW		 430 r = table_print(table, NULL);
431 if (r < 0)
4b6607d9 432 return table_log_print_error(r);
cf57766d
YW		 433
434 return 0;
6129ec85
YW		 435 }
436
437 delay = (i->dest - i->origin) - (i->trans - i->recv);
438
439 t14 = i->origin + i->dest;
440 t23 = i->recv + i->trans;
441 offset_sign = t14 < t23;
442 offset = (offset_sign ? t23 - t14 : t14 - t23) / 2;
443
444 root_distance = i->root_delay / 2 + i->root_dispersion;
445
cf57766d
YW		 446 r = table_add_many(table,
447 TABLE_STRING, "Leap:",
448 TABLE_STRING, ntp_leap_to_string(i->leap),
449 TABLE_STRING, "Version:",
450 TABLE_UINT32, i->version,
451 TABLE_STRING, "Stratum:",
452 TABLE_UINT32, i->stratum,
453 TABLE_STRING, "Reference:");
454 if (r < 0)
bd17fa8c 455 return table_log_add_error(r);
cf57766d 456
6129ec85 457 if (i->stratum <= 1)
cf57766d 458 r = table_add_cell(table, NULL, TABLE_STRING, i->reference.str);
6129ec85 459 else
cf57766d
YW		 460 r = table_add_cell_stringf(table, NULL, "%" PRIX32, be32toh(i->reference.val));
461 if (r < 0)
bd17fa8c 462 return table_log_add_error(r);
cf57766d
YW		 463
464 r = table_add_cell(table, NULL, TABLE_STRING, "Precision:");
465 if (r < 0)
bd17fa8c 466 return table_log_add_error(r);
cf57766d
YW		 467
468 r = table_add_cell_stringf(table, NULL, "%s (%" PRIi32 ")",
5291f26d 469 FORMAT_TIMESPAN(DIV_ROUND_UP((nsec_t) (exp2(i->precision) * NSEC_PER_SEC), NSEC_PER_USEC), 0),
cf57766d
YW		 470 i->precision);
471 if (r < 0)
bd17fa8c 472 return table_log_add_error(r);
cf57766d
YW		 473
474 r = table_add_cell(table, NULL, TABLE_STRING, "Root distance:");
475 if (r < 0)
bd17fa8c 476 return table_log_add_error(r);
cf57766d
YW		 477
478 r = table_add_cell_stringf(table, NULL, "%s (max: %s)",
5291f26d
ZJS		 479 FORMAT_TIMESPAN(root_distance, 0),
480 FORMAT_TIMESPAN(i->root_distance_max, 0));
cf57766d 481 if (r < 0)
bd17fa8c 482 return table_log_add_error(r);
cf57766d
YW		 483
484 r = table_add_cell(table, NULL, TABLE_STRING, "Offset:");
485 if (r < 0)
bd17fa8c 486 return table_log_add_error(r);
cf57766d
YW		 487
488 r = table_add_cell_stringf(table, NULL, "%s%s",
489 offset_sign ? "+" : "-",
5291f26d 490 FORMAT_TIMESPAN(offset, 0));
cf57766d 491 if (r < 0)
bd17fa8c 492 return table_log_add_error(r);
cf57766d
YW		 493
494 r = table_add_many(table,
495 TABLE_STRING, "Delay:",
5291f26d 496 TABLE_STRING, FORMAT_TIMESPAN(delay, 0),
cf57766d 497 TABLE_STRING, "Jitter:",
5291f26d 498 TABLE_STRING, FORMAT_TIMESPAN(i->jitter, 0),
cf57766d
YW		 499 TABLE_STRING, "Packet count:",
500 TABLE_UINT64, i->packet_count);
501 if (r < 0)
bd17fa8c 502 return table_log_add_error(r);
cf57766d
YW		 503
504 if (!i->spike) {
505 r = table_add_cell(table, NULL, TABLE_STRING, "Frequency:");
506 if (r < 0)
bd17fa8c 507 return table_log_add_error(r);
cf57766d
YW		 508
509 r = table_add_cell_stringf(table, NULL, "%+.3fppm", (double) i->freq / 0x10000);
510 if (r < 0)
bd17fa8c 511 return table_log_add_error(r);
cf57766d
YW		 512 }
513
514 r = table_print(table, NULL);
515 if (r < 0)
4b6607d9 516 return table_log_print_error(r);
cf57766d
YW		 517
518 return 0;
6129ec85
YW		 519}
520
521static int map_server_address(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
522 char **p = (char **) userdata;
523 const void *d;
524 int family, r;
525 size_t sz;
526
527 assert(p);
528
529 r = sd_bus_message_enter_container(m, 'r', "iay");
530 if (r < 0)
531 return r;
532
533 r = sd_bus_message_read(m, "i", &family);
534 if (r < 0)
535 return r;
536
537 r = sd_bus_message_read_array(m, 'y', &d, &sz);
538 if (r < 0)
539 return r;
540
541 r = sd_bus_message_exit_container(m);
542 if (r < 0)
543 return r;
544
545 if (sz == 0 && family == AF_UNSPEC) {
546 *p = mfree(*p);
547 return 0;
548 }
549
baaa35ad
ZJS		 550 if (!IN_SET(family, AF_INET, AF_INET6))
551 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
552 "Unknown address family %i", family);
6129ec85 553
baaa35ad
ZJS		 554 if (sz != FAMILY_ADDRESS_SIZE(family))
555 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
556 "Invalid address size");
6129ec85
YW		 557
558 r = in_addr_to_string(family, d, p);
559 if (r < 0)
560 return r;
561
562 return 0;
563}
564
565static int map_ntp_message(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
566 NTPStatusInfo *p = userdata;
567 const void *d;
568 size_t sz;
569 int32_t b;
570 int r;
571
572 assert(p);
573
574 r = sd_bus_message_enter_container(m, 'r', "uuuuittayttttbtt");
575 if (r < 0)
576 return r;
577
578 r = sd_bus_message_read(m, "uuuuitt",
579 &p->leap, &p->version, &p->mode, &p->stratum, &p->precision,
580 &p->root_delay, &p->root_dispersion);
581 if (r < 0)
582 return r;
583
584 r = sd_bus_message_read_array(m, 'y', &d, &sz);
585 if (r < 0)
586 return r;
587
588 r = sd_bus_message_read(m, "ttttbtt",
589 &p->origin, &p->recv, &p->trans, &p->dest,
590 &b, &p->packet_count, &p->jitter);
591 if (r < 0)
592 return r;
593
594 r = sd_bus_message_exit_container(m);
595 if (r < 0)
596 return r;
597
598 if (sz != 4)
599 return -EINVAL;
600
601 memcpy(p->reference.str, d, sz);
602
5d904a6a 603 p->spike = b;
6129ec85
YW		 604
605 return 0;
606}
607
608static int show_timesync_status_once(sd_bus *bus) {
609 static const struct bus_properties_map map_timesync[] = {
610 { "ServerName", "s", NULL, offsetof(NTPStatusInfo, server_name) },
611 { "ServerAddress", "(iay)", map_server_address, offsetof(NTPStatusInfo, server_address) },
612 { "PollIntervalUSec", "t", NULL, offsetof(NTPStatusInfo, poll_interval) },
613 { "PollIntervalMinUSec", "t", NULL, offsetof(NTPStatusInfo, poll_min) },
614 { "PollIntervalMaxUSec", "t", NULL, offsetof(NTPStatusInfo, poll_max) },
615 { "RootDistanceMaxUSec", "t", NULL, offsetof(NTPStatusInfo, root_distance_max) },
616 { "NTPMessage", "(uuuuittayttttbtt)", map_ntp_message, 0 },
617 { "Frequency", "x", NULL, offsetof(NTPStatusInfo, freq) },
618 {}
619 };
620 _cleanup_(ntp_status_info_clear) NTPStatusInfo info = {};
621 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
622 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
623 int r;
624
625 assert(bus);
626
627 r = bus_map_all_properties(bus,
628 "org.freedesktop.timesync1",
629 "/org/freedesktop/timesync1",
630 map_timesync,
631 BUS_MAP_BOOLEAN_AS_BOOL,
632 &error,
633 &m,
634 &info);
635 if (r < 0)
636 return log_error_errno(r, "Failed to query server: %s", bus_error_message(&error, r));
637
638 if (arg_monitor && !terminal_is_dumb())
639 fputs(ANSI_HOME_CLEAR, stdout);
640
641 print_ntp_status_info(&info);
642
643 return 0;
644}
645
646static int on_properties_changed(sd_bus_message *m, void *userdata, sd_bus_error *error) {
647 const char *name;
648 int r;
649
650 assert(m);
651
652 r = sd_bus_message_read(m, "s", &name);
653 if (r < 0)
d67b1d18 654 return bus_log_parse_error(r);
6129ec85
YW		 655
656 if (!streq_ptr(name, "org.freedesktop.timesync1.Manager"))
657 return 0;
658
659 return show_timesync_status_once(sd_bus_message_get_bus(m));
660}
661
662static int show_timesync_status(int argc, char **argv, void *userdata) {
663 _cleanup_(sd_event_unrefp) sd_event *event = NULL;
664 sd_bus *bus = userdata;
665 int r;
666
667 assert(bus);
668
669 r = show_timesync_status_once(bus);
670 if (r < 0)
671 return r;
672
673 if (!arg_monitor)
674 return 0;
675
676 r = sd_event_default(&event);
677 if (r < 0)
678 return log_error_errno(r, "Failed to get event loop: %m");
679
680 r = sd_bus_match_signal(bus,
681 NULL,
682 "org.freedesktop.timesync1",
683 "/org/freedesktop/timesync1",
684 "org.freedesktop.DBus.Properties",
685 "PropertiesChanged",
686 on_properties_changed, NULL);
687 if (r < 0)
688 return log_error_errno(r, "Failed to request match for PropertiesChanged signal: %m");
689
690 r = sd_bus_attach_event(bus, event, SD_EVENT_PRIORITY_NORMAL);
691 if (r < 0)
692 return log_error_errno(r, "Failed to attach bus to event loop: %m");
693
694 r = sd_event_loop(event);
695 if (r < 0)
696 return log_error_errno(r, "Failed to run event loop: %m");
697
698 return 0;
699}
700
255b1fc8 701static int print_timesync_property(const char *name, const char *expected_value, sd_bus_message *m, BusPrintPropertyFlags flags) {
6129ec85
YW		 702 char type;
703 const char *contents;
704 int r;
705
706 assert(name);
707 assert(m);
708
709 r = sd_bus_message_peek_type(m, &type, &contents);
710 if (r < 0)
711 return r;
712
713 switch (type) {
714
715 case SD_BUS_TYPE_STRUCT:
716 if (streq(name, "NTPMessage")) {
717 _cleanup_(ntp_status_info_clear) NTPStatusInfo i = {};
6129ec85
YW		 718
719 r = map_ntp_message(NULL, NULL, m, NULL, &i);
720 if (r < 0)
721 return r;
722
723 if (i.packet_count == 0)
724 return 1;
725
255b1fc8 726 if (!FLAGS_SET(flags, BUS_PRINT_PROPERTY_ONLY_VALUE)) {
6129ec85
YW		 727 fputs(name, stdout);
728 fputc('=', stdout);
729 }
730
731 printf("{ Leap=%u, Version=%u, Mode=%u, Stratum=%u, Precision=%i,",
732 i.leap, i.version, i.mode, i.stratum, i.precision);
5291f26d
ZJS		 733 printf(" RootDelay=%s,", FORMAT_TIMESPAN(i.root_delay, 0));
734 printf(" RootDispersion=%s,", FORMAT_TIMESPAN(i.root_dispersion, 0));
6129ec85
YW		 735
736 if (i.stratum == 1)
737 printf(" Reference=%s,", i.reference.str);
738 else
739 printf(" Reference=%" PRIX32 ",", be32toh(i.reference.val));
740
04f5c018
ZJS		 741 printf(" OriginateTimestamp=%s,", FORMAT_TIMESTAMP(i.origin));
742 printf(" ReceiveTimestamp=%s,", FORMAT_TIMESTAMP(i.recv));
743 printf(" TransmitTimestamp=%s,", FORMAT_TIMESTAMP(i.trans));
744 printf(" DestinationTimestamp=%s,", FORMAT_TIMESTAMP(i.dest));
77ec2816 745 printf(" Ignored=%s, PacketCount=%" PRIu64 ",",
6129ec85 746 yes_no(i.spike), i.packet_count);
5291f26d 747 printf(" Jitter=%s }\n", FORMAT_TIMESPAN(i.jitter, 0));
6129ec85
YW		 748
749 return 1;
750
751 } else if (streq(name, "ServerAddress")) {
752 _cleanup_free_ char *str = NULL;
753
754 r = map_server_address(NULL, NULL, m, NULL, &str);
755 if (r < 0)
756 return r;
757
255b1fc8 758 bus_print_property_value(name, expected_value, flags, str);
6129ec85
YW		 759
760 return 1;
761 }
762 break;
763 }
764
765 return 0;
766}
767
768static int show_timesync(int argc, char **argv, void *userdata) {
769 sd_bus *bus = userdata;
770 int r;
771
772 assert(bus);
773
774 r = bus_print_all_properties(bus,
775 "org.freedesktop.timesync1",
776 "/org/freedesktop/timesync1",
777 print_timesync_property,
778 arg_property,
255b1fc8 779 arg_print_flags,
6129ec85
YW		 780 NULL);
781 if (r < 0)
782 return bus_log_parse_error(r);
783
784 return 0;
785}
786
9030b50a 787static int parse_ifindex_bus(sd_bus *bus, const char *str) {
159a855b
YW		 788 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
789 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
790 int32_t i;
791 int r;
792
793 assert(bus);
794 assert(str);
159a855b 795
597da51b 796 r = parse_ifindex(str);
9030b50a
ZJS		 797 if (r > 0)
798 return r;
799 assert(r < 0);
159a855b 800
43fe4f76 801 r = bus_call_method(bus, bus_network_mgr, "GetLinkByName", &error, &reply, "s", str);
159a855b
YW		 802 if (r < 0)
803 return log_error_errno(r, "Failed to get ifindex of interfaces %s: %s", str, bus_error_message(&error, r));
804
805 r = sd_bus_message_read(reply, "io", &i, NULL);
806 if (r < 0)
807 return bus_log_create_error(r);
808
9030b50a 809 return i;
159a855b
YW		 810}
811
812static int verb_ntp_servers(int argc, char **argv, void *userdata) {
813 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
814 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL;
815 sd_bus *bus = userdata;
816 int ifindex, r;
817
818 assert(bus);
819
9030b50a
ZJS		 820 ifindex = parse_ifindex_bus(bus, argv[1]);
821 if (ifindex < 0)
822 return ifindex;
159a855b
YW		 823
824 polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
825
43fe4f76 826 r = bus_message_new_method_call(bus, &req, bus_network_mgr, "SetLinkNTP");
159a855b
YW		 827 if (r < 0)
828 return bus_log_create_error(r);
829
830 r = sd_bus_message_append(req, "i", ifindex);
831 if (r < 0)
832 return bus_log_create_error(r);
833
834 r = sd_bus_message_append_strv(req, argv + 2);
835 if (r < 0)
836 return bus_log_create_error(r);
837
838 r = sd_bus_call(bus, req, 0, &error, NULL);
839 if (r < 0)
840 return log_error_errno(r, "Failed to set NTP servers: %s", bus_error_message(&error, r));
841
842 return 0;
843}
844
845static int verb_revert(int argc, char **argv, void *userdata) {
846 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
847 sd_bus *bus = userdata;
848 int ifindex, r;
849
850 assert(bus);
851
9030b50a
ZJS		 852 ifindex = parse_ifindex_bus(bus, argv[1]);
853 if (ifindex < 0)
854 return ifindex;
159a855b
YW		 855
856 polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
857
43fe4f76 858 r = bus_call_method(bus, bus_network_mgr, "RevertLinkNTP", &error, NULL, "i", ifindex);
159a855b
YW		 859 if (r < 0)
860 return log_error_errno(r, "Failed to revert interface configuration: %s", bus_error_message(&error, r));
861
862 return 0;
863}
864
be90a886 865static int help(void) {
37ec0fdd
LP		 866 _cleanup_free_ char *link = NULL;
867 int r;
868
869 r = terminal_urlify_man("timedatectl", "1", &link);
870 if (r < 0)
871 return log_oom();
872
353b2baa
LP		 873 printf("%s [OPTIONS...] COMMAND ...\n"
874 "\n%sQuery or change system time and date settings.%s\n"
e1fac8a6 875 "\nCommands:\n"
4f8f66cb 876 " status Show current time settings\n"
ead0adb1 877 " show Show properties of systemd-timedated\n"
4f8f66cb 878 " set-time TIME Set system time\n"
07a062a7
JSJ		 879 " set-timezone ZONE Set system time zone\n"
880 " list-timezones Show known time zones\n"
4f8f66cb 881 " set-local-rtc BOOL Control whether RTC is in local time\n"
6129ec85 882 " set-ntp BOOL Enable or disable network time synchronization\n"
353b2baa 883 "\nsystemd-timesyncd Commands:\n"
6129ec85
YW		 884 " timesync-status Show status of systemd-timesyncd\n"
885 " show-timesync Show properties of systemd-timesyncd\n"
353b2baa 886 "\nOptions:\n"
e1fac8a6
ZJS		 887 " -h --help Show this help message\n"
888 " --version Show package version\n"
889 " --no-pager Do not pipe output into a pager\n"
890 " --no-ask-password Do not prompt for password\n"
891 " -H --host=[USER@]HOST Operate on remote host\n"
892 " -M --machine=CONTAINER Operate on local container\n"
893 " --adjust-system-clock Adjust system clock when changing local RTC mode\n"
894 " --monitor Monitor status of systemd-timesyncd\n"
895 " -p --property=NAME Show only properties by this name\n"
896 " -a --all Show all properties, including empty ones\n"
897 " --value When showing properties, only print the value\n"
bc556335
DDM		 898 "\nSee the %s for details.\n",
899 program_invocation_short_name,
900 ansi_highlight(),
901 ansi_normal(),
902 link);
be90a886
YW		 903
904 return 0;
905}
906
907static int verb_help(int argc, char **argv, void *userdata) {
908 return help();
6d0274f1
LP		 909}
910
911static int parse_argv(int argc, char *argv[]) {
912
913 enum {
914 ARG_VERSION = 0x100,
915 ARG_NO_PAGER,
c9783430 916 ARG_ADJUST_SYSTEM_CLOCK,
6129ec85
YW		 917 ARG_NO_ASK_PASSWORD,
918 ARG_MONITOR,
919 ARG_VALUE,
6d0274f1
LP		 920 };
921
922 static const struct option options[] = {
c9783430
LP		 923 { "help", no_argument, NULL, 'h' },
924 { "version", no_argument, NULL, ARG_VERSION },
925 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
926 { "host", required_argument, NULL, 'H' },
a281d9c7 927 { "machine", required_argument, NULL, 'M' },
c9783430
LP		 928 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
929 { "adjust-system-clock", no_argument, NULL, ARG_ADJUST_SYSTEM_CLOCK },
6129ec85
YW		 930 { "monitor", no_argument, NULL, ARG_MONITOR },
931 { "property", required_argument, NULL, 'p' },
932 { "all", no_argument, NULL, 'a' },
933 { "value", no_argument, NULL, ARG_VALUE },
eb9da376 934 {}
6d0274f1
LP		 935 };
936
6129ec85 937 int c, r;
6d0274f1
LP		 938
939 assert(argc >= 0);
940 assert(argv);
941
6129ec85 942 while ((c = getopt_long(argc, argv, "hH:M:p:a", options, NULL)) >= 0)
6d0274f1
LP		 943
944 switch (c) {
945
946 case 'h':
be90a886 947 return help();
6d0274f1
LP		 948
949 case ARG_VERSION:
3f6fd1ba 950 return version();
6d0274f1 951
a281d9c7
TA		 952 case 'H':
953 arg_transport = BUS_TRANSPORT_REMOTE;
954 arg_host = optarg;
6d0274f1
LP		 955 break;
956
a281d9c7 957 case 'M':
de33fc62 958 arg_transport = BUS_TRANSPORT_MACHINE;
a281d9c7 959 arg_host = optarg;
6d0274f1
LP		 960 break;
961
546158bc
JJ		 962 case ARG_NO_ASK_PASSWORD:
963 arg_ask_password = false;
964 break;
965
c9783430
LP		 966 case ARG_ADJUST_SYSTEM_CLOCK:
967 arg_adjust_system_clock = true;
6d0274f1
LP		 968 break;
969
970 case ARG_NO_PAGER:
0221d68a 971 arg_pager_flags |= PAGER_DISABLE;
6d0274f1
LP		 972 break;
973
6129ec85
YW		 974 case ARG_MONITOR:
975 arg_monitor = true;
976 break;
977
978 case 'p': {
979 r = strv_extend(&arg_property, optarg);
980 if (r < 0)
981 return log_oom();
982
983 /* If the user asked for a particular
e8607daf 984 * property, show it to them, even if it is
6129ec85 985 * empty. */
255b1fc8 986 SET_FLAG(arg_print_flags, BUS_PRINT_PROPERTY_SHOW_EMPTY, true);
6129ec85
YW		 987 break;
988 }
989
990 case 'a':
255b1fc8 991 SET_FLAG(arg_print_flags, BUS_PRINT_PROPERTY_SHOW_EMPTY, true);
6129ec85
YW		 992 break;
993
994 case ARG_VALUE:
255b1fc8 995 SET_FLAG(arg_print_flags, BUS_PRINT_PROPERTY_ONLY_VALUE, true);
6129ec85
YW		 996 break;
997
6d0274f1
LP		 998 case '?':
999 return -EINVAL;
1000
1001 default:
04499a70 1002 assert_not_reached();
6d0274f1 1003 }
6d0274f1
LP		 1004
1005 return 1;
1006}
1007
a281d9c7 1008static int timedatectl_main(sd_bus *bus, int argc, char *argv[]) {
be90a886 1009 static const Verb verbs[] = {
6129ec85 1010 { "status", VERB_ANY, 1, VERB_DEFAULT, show_status },
ead0adb1 1011 { "show", VERB_ANY, 1, 0, show_properties },
6129ec85
YW		 1012 { "set-time", 2, 2, 0, set_time },
1013 { "set-timezone", 2, 2, 0, set_timezone },
1014 { "list-timezones", VERB_ANY, 1, 0, list_timezones },
1015 { "set-local-rtc", 2, 2, 0, set_local_rtc },
1016 { "set-ntp", 2, 2, 0, set_ntp },
1017 { "timesync-status", VERB_ANY, 1, 0, show_timesync_status },
1018 { "show-timesync", VERB_ANY, 1, 0, show_timesync },
159a855b
YW		 1019 { "ntp-servers", 3, VERB_ANY, 0, verb_ntp_servers },
1020 { "revert", 2, 2, 0, verb_revert },
6129ec85 1021 { "help", VERB_ANY, VERB_ANY, 0, verb_help }, /* Not documented, but supported since it is created. */
be90a886 1022 {}
6d0274f1
LP		 1023 };
1024
be90a886 1025 return dispatch_verb(argc, argv, verbs, bus);
6d0274f1
LP		 1026}
1027
50378e5d
ZJS		 1028static int run(int argc, char *argv[]) {
1029 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
84f6181c 1030 int r;
6d0274f1 1031
a9cdc94f 1032 setlocale(LC_ALL, "");
d2acb93d 1033 log_setup();
6d0274f1
LP		 1034
1035 r = parse_argv(argc, argv);
84f6181c 1036 if (r <= 0)
50378e5d 1037 return r;
6d0274f1 1038
266f3e26 1039 r = bus_connect_transport(arg_transport, arg_host, false, &bus);
50378e5d 1040 if (r < 0)
10a7340a 1041 return bus_log_connect_error(r, arg_transport);
6d0274f1 1042
50378e5d 1043 return timedatectl_main(bus, argc, argv);
6d0274f1 1044}
50378e5d
ZJS		 1045
1046DEFINE_MAIN_FUNCTION(run);
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