1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
10 #include "sd-messages.h"
12 #include "alloc-util.h"
13 #include "bus-common-errors.h"
14 #include "bus-error.h"
15 #include "bus-get-properties.h"
16 #include "bus-locator.h"
17 #include "bus-log-control-api.h"
18 #include "bus-map-properties.h"
19 #include "bus-polkit.h"
20 #include "clock-util.h"
21 #include "conf-files.h"
24 #include "fileio-label.h"
29 #include "main-func.h"
30 #include "memory-util.h"
31 #include "missing_capability.h"
32 #include "path-util.h"
33 #include "selinux-util.h"
34 #include "service-util.h"
35 #include "signal-util.h"
36 #include "string-util.h"
39 #include "unit-name.h"
40 #include "user-util.h"
42 #define NULL_ADJTIME_UTC "0.0 0 0\n0\nUTC\n"
43 #define NULL_ADJTIME_LOCAL "0.0 0 0\n0\nLOCAL\n"
45 #define UNIT_LIST_DIRS (const char* const*) CONF_PATHS_STRV("systemd/ntp-units.d")
47 typedef struct UnitStatusInfo
{
50 char *unit_file_state
;
54 LIST_FIELDS(struct UnitStatusInfo
, units
);
57 typedef struct Context
{
60 Hashmap
*polkit_registry
;
61 sd_bus_message
*cache
;
63 sd_bus_slot
*slot_job_removed
;
65 LIST_HEAD(UnitStatusInfo
, units
);
68 #define log_unit_full(unit, level, error, ...) \
70 const UnitStatusInfo *_u = (unit); \
71 log_object_internal(level, error, PROJECT_FILE, __LINE__, __func__, \
72 "UNIT=", _u->name, NULL, NULL, ##__VA_ARGS__); \
75 #define log_unit_debug(unit, ...) log_unit_full(unit, LOG_DEBUG, 0, ##__VA_ARGS__)
76 #define log_unit_info(unit, ...) log_unit_full(unit, LOG_INFO, 0, ##__VA_ARGS__)
77 #define log_unit_notice(unit, ...) log_unit_full(unit, LOG_NOTICE, 0, ##__VA_ARGS__)
78 #define log_unit_warning(unit, ...) log_unit_full(unit, LOG_WARNING, 0, ##__VA_ARGS__)
79 #define log_unit_error(unit, ...) log_unit_full(unit, LOG_ERR, 0, ##__VA_ARGS__)
81 #define log_unit_debug_errno(unit, error, ...) log_unit_full(unit, LOG_DEBUG, error, ##__VA_ARGS__)
82 #define log_unit_info_errno(unit, error, ...) log_unit_full(unit, LOG_INFO, error, ##__VA_ARGS__)
83 #define log_unit_notice_errno(unit, error, ...) log_unit_full(unit, LOG_NOTICE, error, ##__VA_ARGS__)
84 #define log_unit_warning_errno(unit, error, ...) log_unit_full(unit, LOG_WARNING, error, ##__VA_ARGS__)
85 #define log_unit_error_errno(unit, error, ...) log_unit_full(unit, LOG_ERR, error, ##__VA_ARGS__)
87 static void unit_status_info_clear(UnitStatusInfo
*p
) {
90 p
->load_state
= mfree(p
->load_state
);
91 p
->unit_file_state
= mfree(p
->unit_file_state
);
92 p
->active_state
= mfree(p
->active_state
);
95 static void unit_status_info_free(UnitStatusInfo
*p
) {
98 unit_status_info_clear(p
);
104 static void context_clear(Context
*c
) {
110 bus_verify_polkit_async_registry_free(c
->polkit_registry
);
111 sd_bus_message_unref(c
->cache
);
113 sd_bus_slot_unref(c
->slot_job_removed
);
115 while ((p
= c
->units
)) {
116 LIST_REMOVE(units
, c
->units
, p
);
117 unit_status_info_free(p
);
121 static int context_add_ntp_service(Context
*c
, const char *s
, const char *source
) {
124 if (!unit_name_is_valid(s
, UNIT_NAME_PLAIN
))
127 /* Do not add this if it is already listed */
128 LIST_FOREACH(units
, u
, c
->units
)
129 if (streq(u
->name
, s
))
132 u
= new0(UnitStatusInfo
, 1);
142 LIST_APPEND(units
, c
->units
, u
);
143 log_unit_debug(u
, "added from %s.", source
);
148 static int context_parse_ntp_services_from_environment(Context
*c
) {
154 env
= getenv("SYSTEMD_TIMEDATED_NTP_SERVICES");
158 log_debug("Using list of ntp services from environment variable $SYSTEMD_TIMEDATED_NTP_SERVICES=%s.", env
);
161 _cleanup_free_
char *word
= NULL
;
163 r
= extract_first_word(&p
, &word
, ":", 0);
169 log_error("Invalid syntax, ignoring: %s", env
);
173 r
= context_add_ntp_service(c
, word
, "$SYSTEMD_TIMEDATED_NTP_SERVICES");
175 log_warning_errno(r
, "Failed to add NTP service \"%s\", ignoring: %m", word
);
181 static int context_parse_ntp_services_from_disk(Context
*c
) {
182 _cleanup_strv_free_
char **files
= NULL
;
186 r
= conf_files_list_strv(&files
, ".list", NULL
, CONF_FILES_FILTER_MASKED
, UNIT_LIST_DIRS
);
188 return log_error_errno(r
, "Failed to enumerate .list files: %m");
190 STRV_FOREACH(f
, files
) {
191 _cleanup_fclose_
FILE *file
= NULL
;
193 log_debug("Reading file '%s'", *f
);
195 r
= fopen_unlocked(*f
, "re", &file
);
197 log_error_errno(r
, "Failed to open %s, ignoring: %m", *f
);
202 _cleanup_free_
char *line
= NULL
;
205 r
= read_line(file
, LINE_MAX
, &line
);
207 log_error_errno(r
, "Failed to read %s, ignoring: %m", *f
);
213 word
= strstrip(line
);
214 if (isempty(word
) || startswith("#", word
))
217 r
= context_add_ntp_service(c
, word
, *f
);
219 log_warning_errno(r
, "Failed to add NTP service \"%s\", ignoring: %m", word
);
226 static int context_parse_ntp_services(Context
*c
) {
229 r
= context_parse_ntp_services_from_environment(c
);
233 return context_parse_ntp_services_from_disk(c
);
236 static int context_ntp_service_is_active(Context
*c
) {
237 UnitStatusInfo
*info
;
242 /* Call context_update_ntp_status() to update UnitStatusInfo before calling this. */
244 LIST_FOREACH(units
, info
, c
->units
)
245 count
+= !STRPTR_IN_SET(info
->active_state
, "inactive", "failed");
250 static int context_ntp_service_exists(Context
*c
) {
251 UnitStatusInfo
*info
;
256 /* Call context_update_ntp_status() to update UnitStatusInfo before calling this. */
258 LIST_FOREACH(units
, info
, c
->units
)
259 count
+= streq_ptr(info
->load_state
, "loaded");
264 static int context_read_data(Context
*c
) {
265 _cleanup_free_
char *t
= NULL
;
270 r
= get_timezone(&t
);
272 log_warning_errno(r
, "/etc/localtime should be a symbolic link to a time zone data file in /usr/share/zoneinfo/.");
274 log_warning_errno(r
, "Failed to get target of /etc/localtime: %m");
276 free_and_replace(c
->zone
, t
);
278 c
->local_rtc
= clock_is_localtime(NULL
) > 0;
283 static int context_write_data_timezone(Context
*c
) {
284 _cleanup_free_
char *p
= NULL
;
289 /* No timezone is very similar to UTC. Hence in either of these cases link the UTC file in. Except if
290 * it isn't installed, in which case we remove the symlink altogether. Since glibc defaults to an
291 * internal version of UTC in that case behaviour is mostly equivalent. We still prefer creating the
292 * symlink though, since things are more self explanatory then. */
294 if (isempty(c
->zone
) || streq(c
->zone
, "UTC")) {
296 if (access("/usr/share/zoneinfo/UTC", F_OK
) < 0) {
298 if (unlink("/etc/localtime") < 0 && errno
!= ENOENT
)
304 source
= "../usr/share/zoneinfo/UTC";
306 p
= path_join("../usr/share/zoneinfo", c
->zone
);
313 return symlink_atomic(source
, "/etc/localtime");
316 static int context_write_data_local_rtc(Context
*c
) {
317 _cleanup_free_
char *s
= NULL
, *w
= NULL
;
322 r
= read_full_file("/etc/adjtime", &s
, NULL
);
330 w
= strdup(NULL_ADJTIME_LOCAL
);
335 const char *e
= "\n"; /* default if there is less than 3 lines */
336 const char *prepend
= "";
339 p
= strchrnul(s
, '\n');
341 /* only one line, no \n terminator */
343 else if (p
[1] == '\0') {
344 /* only one line, with \n terminator */
348 p
= strchr(p
+1, '\n');
350 /* only two lines, no \n terminator */
355 /* third line might have a \n terminator or not */
357 end
= strchr(p
, '\n');
358 /* if we actually have a fourth line, use that as suffix "e", otherwise the default \n */
367 w
= new(char, a
+ (c
->local_rtc
? 5 : 3) + strlen(prepend
) + b
+ 1);
371 *(char*) mempcpy(stpcpy(stpcpy(mempcpy(w
, s
, a
), prepend
), c
->local_rtc
? "LOCAL" : "UTC"), e
, b
) = 0;
373 if (streq(w
, NULL_ADJTIME_UTC
)) {
374 if (unlink("/etc/adjtime") < 0)
382 r
= mac_selinux_init();
386 return write_string_file_atomic_label("/etc/adjtime", w
);
389 static int context_update_ntp_status(Context
*c
, sd_bus
*bus
, sd_bus_message
*m
) {
390 static const struct bus_properties_map map
[] = {
391 { "LoadState", "s", NULL
, offsetof(UnitStatusInfo
, load_state
) },
392 { "ActiveState", "s", NULL
, offsetof(UnitStatusInfo
, active_state
) },
393 { "UnitFileState", "s", NULL
, offsetof(UnitStatusInfo
, unit_file_state
) },
402 /* Suppress calling context_update_ntp_status() multiple times within single DBus transaction. */
407 sd_bus_message_unref(c
->cache
);
408 c
->cache
= sd_bus_message_ref(m
);
411 LIST_FOREACH(units
, u
, c
->units
) {
412 _cleanup_(sd_bus_error_free
) sd_bus_error error
= SD_BUS_ERROR_NULL
;
413 _cleanup_free_
char *path
= NULL
;
415 unit_status_info_clear(u
);
417 path
= unit_dbus_path_from_name(u
->name
);
421 r
= bus_map_all_properties(
423 "org.freedesktop.systemd1",
431 return log_unit_error_errno(u
, r
, "Failed to get properties: %s", bus_error_message(&error
, r
));
437 static int match_job_removed(sd_bus_message
*m
, void *userdata
, sd_bus_error
*error
) {
438 Context
*c
= userdata
;
447 r
= sd_bus_message_read(m
, "uoss", NULL
, &path
, NULL
, NULL
);
449 bus_log_parse_error(r
);
453 LIST_FOREACH(units
, u
, c
->units
)
454 if (streq_ptr(path
, u
->path
))
455 u
->path
= mfree(u
->path
);
460 c
->slot_job_removed
= sd_bus_slot_unref(c
->slot_job_removed
);
462 (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m
),
463 "/org/freedesktop/timedate1", "org.freedesktop.timedate1", "NTP",
470 static int unit_start_or_stop(UnitStatusInfo
*u
, sd_bus
*bus
, sd_bus_error
*error
, bool start
) {
471 _cleanup_(sd_bus_message_unrefp
) sd_bus_message
*reply
= NULL
;
482 start
? "StartUnit" : "StopUnit",
488 log_unit_full(u
, r
< 0 ? LOG_WARNING
: LOG_DEBUG
, r
,
489 "%s unit: %m", start
? "Starting" : "Stopping");
493 r
= sd_bus_message_read(reply
, "o", &path
);
495 return bus_log_parse_error(r
);
497 r
= free_and_strdup(&u
->path
, path
);
504 static int unit_enable_or_disable(UnitStatusInfo
*u
, sd_bus
*bus
, sd_bus_error
*error
, bool enable
) {
511 /* Call context_update_ntp_status() to update UnitStatusInfo before calling this. */
513 if (streq(u
->unit_file_state
, "enabled") == enable
) {
514 log_unit_debug(u
, "already %sd.", enable_disable(enable
));
518 log_unit_info(u
, "%s unit.", enable
? "Enabling" : "Disabling");
543 r
= bus_call_method(bus
, bus_systemd_mgr
, "Reload", error
, NULL
, NULL
);
550 static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_time
, "t", now(CLOCK_REALTIME
));
551 static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_ntp_sync
, "b", ntp_synced());
553 static int property_get_rtc_time(
556 const char *interface
,
557 const char *property
,
558 sd_bus_message
*reply
,
560 sd_bus_error
*error
) {
566 r
= clock_get_hwclock(&tm
);
568 log_warning("/dev/rtc is busy. Is somebody keeping it open continuously? That's not a good idea... Returning a bogus RTC timestamp.");
569 else if (r
== -ENOENT
)
570 log_debug("/dev/rtc not found.");
572 return sd_bus_error_set_errnof(error
, r
, "Failed to read RTC: %m");
574 t
= (usec_t
) timegm(&tm
) * USEC_PER_SEC
;
576 return sd_bus_message_append(reply
, "t", t
);
579 static int property_get_can_ntp(
582 const char *interface
,
583 const char *property
,
584 sd_bus_message
*reply
,
586 sd_bus_error
*error
) {
588 Context
*c
= userdata
;
597 if (c
->slot_job_removed
)
598 /* When the previous request is not finished, then assume NTP is enabled. */
599 return sd_bus_message_append(reply
, "b", true);
601 r
= context_update_ntp_status(c
, bus
, reply
);
605 return sd_bus_message_append(reply
, "b", context_ntp_service_exists(c
) > 0);
608 static int property_get_ntp(
611 const char *interface
,
612 const char *property
,
613 sd_bus_message
*reply
,
615 sd_bus_error
*error
) {
617 Context
*c
= userdata
;
626 if (c
->slot_job_removed
)
627 /* When the previous request is not finished, then assume NTP is active. */
628 return sd_bus_message_append(reply
, "b", true);
630 r
= context_update_ntp_status(c
, bus
, reply
);
634 return sd_bus_message_append(reply
, "b", context_ntp_service_is_active(c
) > 0);
637 static int method_set_timezone(sd_bus_message
*m
, void *userdata
, sd_bus_error
*error
) {
638 Context
*c
= userdata
;
645 r
= sd_bus_message_read(m
, "sb", &z
, &interactive
);
649 if (!timezone_is_valid(z
, LOG_DEBUG
))
650 return sd_bus_error_setf(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid or not installed time zone '%s'", z
);
652 if (streq_ptr(z
, c
->zone
))
653 return sd_bus_reply_method_return(m
, NULL
);
655 r
= bus_verify_polkit_async(
658 "org.freedesktop.timedate1.set-timezone",
667 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
669 r
= free_and_strdup(&c
->zone
, z
);
673 /* 1. Write new configuration file */
674 r
= context_write_data_timezone(c
);
676 log_error_errno(r
, "Failed to set time zone: %m");
677 return sd_bus_error_set_errnof(error
, r
, "Failed to set time zone: %m");
680 /* 2. Make glibc notice the new timezone */
683 /* 3. Tell the kernel our timezone */
684 r
= clock_set_timezone(NULL
);
686 log_debug_errno(r
, "Failed to tell kernel about timezone, ignoring: %m");
692 /* 4. Sync RTC from system clock, with the new delta */
693 assert_se(clock_gettime(CLOCK_REALTIME
, &ts
) == 0);
694 assert_se(localtime_r(&ts
.tv_sec
, &tm
));
696 r
= clock_set_hwclock(&tm
);
698 log_debug_errno(r
, "Failed to sync time to hardware clock, ignoring: %m");
702 "MESSAGE_ID=" SD_MESSAGE_TIMEZONE_CHANGE_STR
,
703 "TIMEZONE=%s", c
->zone
,
704 "TIMEZONE_SHORTNAME=%s", tzname
[daylight
],
705 "DAYLIGHT=%i", daylight
,
706 LOG_MESSAGE("Changed time zone to '%s' (%s).", c
->zone
, tzname
[daylight
]));
708 (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m
),
709 "/org/freedesktop/timedate1", "org.freedesktop.timedate1", "Timezone",
712 return sd_bus_reply_method_return(m
, NULL
);
715 static int method_set_local_rtc(sd_bus_message
*m
, void *userdata
, sd_bus_error
*error
) {
716 int lrtc
, fix_system
, interactive
;
717 Context
*c
= userdata
;
724 r
= sd_bus_message_read(m
, "bbb", &lrtc
, &fix_system
, &interactive
);
728 if (lrtc
== c
->local_rtc
)
729 return sd_bus_reply_method_return(m
, NULL
);
731 r
= bus_verify_polkit_async(
734 "org.freedesktop.timedate1.set-local-rtc",
747 /* 1. Write new configuration file */
748 r
= context_write_data_local_rtc(c
);
750 log_error_errno(r
, "Failed to set RTC to %s: %m", lrtc
? "local" : "UTC");
751 return sd_bus_error_set_errnof(error
, r
, "Failed to set RTC to %s: %m", lrtc
? "local" : "UTC");
754 /* 2. Tell the kernel our timezone */
755 r
= clock_set_timezone(NULL
);
757 log_debug_errno(r
, "Failed to tell kernel about timezone, ignoring: %m");
759 /* 3. Synchronize clocks */
760 assert_se(clock_gettime(CLOCK_REALTIME
, &ts
) == 0);
765 /* Sync system clock from RTC; first, initialize the timezone fields of struct tm. */
766 localtime_or_gmtime_r(&ts
.tv_sec
, &tm
, !c
->local_rtc
);
768 /* Override the main fields of struct tm, but not the timezone fields */
769 r
= clock_get_hwclock(&tm
);
771 log_debug_errno(r
, "Failed to get hardware clock, ignoring: %m");
773 /* And set the system clock with this */
774 ts
.tv_sec
= mktime_or_timegm(&tm
, !c
->local_rtc
);
776 if (clock_settime(CLOCK_REALTIME
, &ts
) < 0)
777 log_debug_errno(errno
, "Failed to update system clock, ignoring: %m");
783 /* Sync RTC from system clock */
784 localtime_or_gmtime_r(&ts
.tv_sec
, &tm
, !c
->local_rtc
);
786 r
= clock_set_hwclock(&tm
);
788 log_debug_errno(r
, "Failed to sync time to hardware clock, ignoring: %m");
791 log_info("RTC configured to %s time.", c
->local_rtc
? "local" : "UTC");
793 (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m
),
794 "/org/freedesktop/timedate1", "org.freedesktop.timedate1", "LocalRTC",
797 return sd_bus_reply_method_return(m
, NULL
);
800 static int method_set_time(sd_bus_message
*m
, void *userdata
, sd_bus_error
*error
) {
801 sd_bus
*bus
= sd_bus_message_get_bus(m
);
802 int relative
, interactive
, r
;
803 Context
*c
= userdata
;
812 if (c
->slot_job_removed
)
813 return sd_bus_error_set(error
, BUS_ERROR_AUTOMATIC_TIME_SYNC_ENABLED
, "Previous request is not finished, refusing.");
815 r
= context_update_ntp_status(c
, bus
, m
);
817 return sd_bus_error_set_errnof(error
, r
, "Failed to update context: %m");
819 if (context_ntp_service_is_active(c
) > 0)
820 return sd_bus_error_set(error
, BUS_ERROR_AUTOMATIC_TIME_SYNC_ENABLED
, "Automatic time synchronization is enabled");
822 /* this only gets used if dbus does not provide a timestamp */
823 start
= now(CLOCK_MONOTONIC
);
825 r
= sd_bus_message_read(m
, "xbb", &utc
, &relative
, &interactive
);
829 if (!relative
&& utc
<= 0)
830 return sd_bus_error_set(error
, SD_BUS_ERROR_INVALID_ARGS
, "Invalid absolute time");
832 if (relative
&& utc
== 0)
833 return sd_bus_reply_method_return(m
, NULL
);
838 n
= now(CLOCK_REALTIME
);
841 if ((utc
> 0 && x
< n
) ||
843 return sd_bus_error_set(error
, SD_BUS_ERROR_INVALID_ARGS
, "Time value overflow");
845 timespec_store(&ts
, x
);
847 timespec_store(&ts
, (usec_t
) utc
);
849 r
= bus_verify_polkit_async(
852 "org.freedesktop.timedate1.set-time",
863 /* adjust ts for time spent in program */
864 r
= sd_bus_message_get_monotonic_usec(m
, &start
);
865 /* when sd_bus_message_get_monotonic_usec() returns -ENODATA it does not modify &start */
866 if (r
< 0 && r
!= -ENODATA
)
869 timespec_store(&ts
, timespec_load(&ts
) + (now(CLOCK_MONOTONIC
) - start
));
871 /* Set system clock */
872 if (clock_settime(CLOCK_REALTIME
, &ts
) < 0) {
873 log_error_errno(errno
, "Failed to set local time: %m");
874 return sd_bus_error_set_errnof(error
, errno
, "Failed to set local time: %m");
877 /* Sync down to RTC */
878 localtime_or_gmtime_r(&ts
.tv_sec
, &tm
, !c
->local_rtc
);
880 r
= clock_set_hwclock(&tm
);
882 log_debug_errno(r
, "Failed to update hardware clock, ignoring: %m");
885 "MESSAGE_ID=" SD_MESSAGE_TIME_CHANGE_STR
,
886 "REALTIME="USEC_FMT
, timespec_load(&ts
),
887 LOG_MESSAGE("Changed local time to %s", ctime(&ts
.tv_sec
)));
889 return sd_bus_reply_method_return(m
, NULL
);
892 static int method_set_ntp(sd_bus_message
*m
, void *userdata
, sd_bus_error
*error
) {
893 _cleanup_(sd_bus_slot_unrefp
) sd_bus_slot
*slot
= NULL
;
894 sd_bus
*bus
= sd_bus_message_get_bus(m
);
895 Context
*c
= userdata
;
897 const UnitStatusInfo
*selected
= NULL
;
898 int enable
, interactive
, q
, r
;
904 r
= sd_bus_message_read(m
, "bb", &enable
, &interactive
);
908 r
= context_update_ntp_status(c
, bus
, m
);
912 if (context_ntp_service_exists(c
) <= 0)
913 return sd_bus_error_set(error
, BUS_ERROR_NO_NTP_SUPPORT
, "NTP not supported");
915 r
= bus_verify_polkit_async(
918 "org.freedesktop.timedate1.set-ntp",
929 /* This method may be called frequently. Forget the previous job if it has not completed yet. */
930 LIST_FOREACH(units
, u
, c
->units
)
931 u
->path
= mfree(u
->path
);
933 if (!c
->slot_job_removed
) {
934 r
= bus_match_signal_async(
939 match_job_removed
, NULL
, c
);
945 LIST_FOREACH(units
, u
, c
->units
) {
946 bool enable_this_one
= !selected
;
948 if (!streq(u
->load_state
, "loaded"))
951 r
= unit_enable_or_disable(u
, bus
, error
, enable_this_one
);
953 /* If enablement failed, don't start this unit. */
954 enable_this_one
= false;
956 r
= unit_start_or_stop(u
, bus
, error
, enable_this_one
);
958 log_unit_warning_errno(u
, r
, "Failed to %s %sd NTP unit, ignoring: %m",
959 enable_this_one
? "start" : "stop",
960 enable_disable(enable_this_one
));
965 LIST_FOREACH(units
, u
, c
->units
) {
966 if (!streq(u
->load_state
, "loaded"))
969 q
= unit_enable_or_disable(u
, bus
, error
, false);
973 q
= unit_start_or_stop(u
, bus
, error
, false);
980 if (enable
&& !selected
)
981 return log_error_errno(SYNTHETIC_ERRNO(ENOENT
), "No NTP service found to enable.");
984 c
->slot_job_removed
= TAKE_PTR(slot
);
987 log_info("Set NTP to enabled (%s).", selected
->name
);
989 log_info("Set NTP to disabled.");
991 return sd_bus_reply_method_return(m
, NULL
);
994 static int method_list_timezones(sd_bus_message
*m
, void *userdata
, sd_bus_error
*error
) {
995 _cleanup_(sd_bus_message_unrefp
) sd_bus_message
*reply
= NULL
;
996 _cleanup_strv_free_
char **zones
= NULL
;
1001 r
= get_timezones(&zones
);
1003 return sd_bus_error_set_errnof(error
, r
, "Failed to read list of time zones: %m");
1005 r
= sd_bus_message_new_method_return(m
, &reply
);
1009 r
= sd_bus_message_append_strv(reply
, zones
);
1013 return sd_bus_send(NULL
, reply
, NULL
);
1016 static const sd_bus_vtable timedate_vtable
[] = {
1017 SD_BUS_VTABLE_START(0),
1019 SD_BUS_PROPERTY("Timezone", "s", NULL
, offsetof(Context
, zone
), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
1020 SD_BUS_PROPERTY("LocalRTC", "b", bus_property_get_bool
, offsetof(Context
, local_rtc
), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
1021 SD_BUS_PROPERTY("CanNTP", "b", property_get_can_ntp
, 0, 0),
1022 SD_BUS_PROPERTY("NTP", "b", property_get_ntp
, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE
),
1023 SD_BUS_PROPERTY("NTPSynchronized", "b", property_get_ntp_sync
, 0, 0),
1024 SD_BUS_PROPERTY("TimeUSec", "t", property_get_time
, 0, 0),
1025 SD_BUS_PROPERTY("RTCTimeUSec", "t", property_get_rtc_time
, 0, 0),
1027 SD_BUS_METHOD_WITH_NAMES("SetTime",
1029 SD_BUS_PARAM(usec_utc
)
1030 SD_BUS_PARAM(relative
)
1031 SD_BUS_PARAM(interactive
),
1034 SD_BUS_VTABLE_UNPRIVILEGED
),
1035 SD_BUS_METHOD_WITH_NAMES("SetTimezone",
1037 SD_BUS_PARAM(timezone
)
1038 SD_BUS_PARAM(interactive
),
1040 method_set_timezone
,
1041 SD_BUS_VTABLE_UNPRIVILEGED
),
1042 SD_BUS_METHOD_WITH_NAMES("SetLocalRTC",
1044 SD_BUS_PARAM(local_rtc
)
1045 SD_BUS_PARAM(fix_system
)
1046 SD_BUS_PARAM(interactive
),
1048 method_set_local_rtc
,
1049 SD_BUS_VTABLE_UNPRIVILEGED
),
1050 SD_BUS_METHOD_WITH_NAMES("SetNTP",
1052 SD_BUS_PARAM(use_ntp
)
1053 SD_BUS_PARAM(interactive
),
1056 SD_BUS_VTABLE_UNPRIVILEGED
),
1057 SD_BUS_METHOD_WITH_NAMES("ListTimezones",
1060 SD_BUS_PARAM(timezones
),
1061 method_list_timezones
,
1062 SD_BUS_VTABLE_UNPRIVILEGED
),
1067 const BusObjectImplementation manager_object
= {
1068 "/org/freedesktop/timedate1",
1069 "org.freedesktop.timedate1",
1070 .vtables
= BUS_VTABLES(timedate_vtable
),
1073 static int connect_bus(Context
*c
, sd_event
*event
, sd_bus
**_bus
) {
1074 _cleanup_(sd_bus_flush_close_unrefp
) sd_bus
*bus
= NULL
;
1081 r
= sd_bus_default_system(&bus
);
1083 return log_error_errno(r
, "Failed to get system bus connection: %m");
1085 r
= bus_add_implementation(bus
, &manager_object
, c
);
1089 r
= bus_log_control_api_register(bus
);
1093 r
= sd_bus_request_name_async(bus
, NULL
, "org.freedesktop.timedate1", 0, NULL
, NULL
);
1095 return log_error_errno(r
, "Failed to request name: %m");
1097 r
= sd_bus_attach_event(bus
, event
, 0);
1099 return log_error_errno(r
, "Failed to attach bus to event loop: %m");
1101 *_bus
= TAKE_PTR(bus
);
1106 static int run(int argc
, char *argv
[]) {
1107 _cleanup_(context_clear
) Context context
= {};
1108 _cleanup_(sd_event_unrefp
) sd_event
*event
= NULL
;
1109 _cleanup_(sd_bus_flush_close_unrefp
) sd_bus
*bus
= NULL
;
1114 r
= service_parse_argv("systemd-timedated.service",
1115 "Manage the system clock and timezone and NTP enablement.",
1116 BUS_IMPLEMENTATIONS(&manager_object
,
1117 &log_control_object
),
1124 assert_se(sigprocmask_many(SIG_BLOCK
, NULL
, SIGTERM
, SIGINT
, -1) >= 0);
1126 r
= sd_event_default(&event
);
1128 return log_error_errno(r
, "Failed to allocate event loop: %m");
1130 (void) sd_event_set_watchdog(event
, true);
1132 r
= sd_event_add_signal(event
, NULL
, SIGINT
, NULL
, NULL
);
1134 return log_error_errno(r
, "Failed to install SIGINT handler: %m");
1136 r
= sd_event_add_signal(event
, NULL
, SIGTERM
, NULL
, NULL
);
1138 return log_error_errno(r
, "Failed to install SIGTERM handler: %m");
1140 r
= connect_bus(&context
, event
, &bus
);
1144 (void) sd_bus_negotiate_timestamp(bus
, true);
1146 r
= context_read_data(&context
);
1148 return log_error_errno(r
, "Failed to read time zone data: %m");
1150 r
= context_parse_ntp_services(&context
);
1154 r
= bus_event_loop_with_idle(event
, bus
, "org.freedesktop.timedate1", DEFAULT_EXIT_USEC
, NULL
, NULL
);
1156 return log_error_errno(r
, "Failed to run event loop: %m");
1161 DEFINE_MAIN_FUNCTION(run
);