Adding upstream version 241.upstream/241upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

6 files changed, 2046 insertions, 0 deletions

diff --git a/src/timedate/meson.build b/src/timedate/meson.build
new file mode 100644
index 0000000..46c7360
--- /dev/null
+++ b/src/timedate/meson.build
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: LGPL-2.1+
+
+if conf.get('ENABLE_TIMEDATED') == 1
+        install_data('org.freedesktop.timedate1.conf',
+                     install_dir : dbuspolicydir)
+        install_data('org.freedesktop.timedate1.service',
+                     install_dir : dbussystemservicedir)
+        install_data('org.freedesktop.timedate1.policy',
+                     install_dir : polkitpolicydir)
+endif
diff --git a/src/timedate/org.freedesktop.timedate1.conf b/src/timedate/org.freedesktop.timedate1.conf
new file mode 100644
index 0000000..53f6c84
--- /dev/null
+++ b/src/timedate/org.freedesktop.timedate1.conf
@@ -0,0 +1,29 @@
+<?xml version="1.0"?> <!--*-nxml-*-->
+<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
+        "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
+
+<!--
+  SPDX-License-Identifier: LGPL-2.1+
+
+  This file is part of systemd.
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+-->
+
+<busconfig>
+
+        <policy user="root">
+                <allow own="org.freedesktop.timedate1"/>
+                <allow send_destination="org.freedesktop.timedate1"/>
+                <allow receive_sender="org.freedesktop.timedate1"/>
+        </policy>
+
+        <policy context="default">
+                <allow send_destination="org.freedesktop.timedate1"/>
+                <allow receive_sender="org.freedesktop.timedate1"/>
+        </policy>
+
+</busconfig>
diff --git a/src/timedate/org.freedesktop.timedate1.policy b/src/timedate/org.freedesktop.timedate1.policy
new file mode 100644
index 0000000..b6303ba
--- /dev/null
+++ b/src/timedate/org.freedesktop.timedate1.policy
@@ -0,0 +1,62 @@
+<?xml version="1.0" encoding="UTF-8"?> <!--*-nxml-*-->
+<!DOCTYPE policyconfig PUBLIC "-//freedesktop//DTD PolicyKit Policy Configuration 1.0//EN"
+        "http://www.freedesktop.org/standards/PolicyKit/1/policyconfig.dtd">
+
+<!--
+  SPDX-License-Identifier: LGPL-2.1+
+
+  This file is part of systemd.
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+-->
+
+<policyconfig>
+
+        <vendor>The systemd Project</vendor>
+        <vendor_url>http://www.freedesktop.org/wiki/Software/systemd</vendor_url>
+
+        <action id="org.freedesktop.timedate1.set-time">
+                <description gettext-domain="systemd">Set system time</description>
+                <message gettext-domain="systemd">Authentication is required to set the system time.</message>
+                <defaults>
+                        <allow_any>auth_admin_keep</allow_any>
+                        <allow_inactive>auth_admin_keep</allow_inactive>
+                        <allow_active>auth_admin_keep</allow_active>
+                </defaults>
+                <annotate key="org.freedesktop.policykit.imply">org.freedesktop.timedate1.set-timezone org.freedesktop.timedate1.set-ntp</annotate>
+        </action>
+
+        <action id="org.freedesktop.timedate1.set-timezone">
+                <description gettext-domain="systemd">Set system timezone</description>
+                <message gettext-domain="systemd">Authentication is required to set the system timezone.</message>
+                <defaults>
+                        <allow_any>auth_admin_keep</allow_any>
+                        <allow_inactive>auth_admin_keep</allow_inactive>
+                        <allow_active>auth_admin_keep</allow_active>
+                </defaults>
+        </action>
+
+        <action id="org.freedesktop.timedate1.set-local-rtc">
+                <description gettext-domain="systemd">Set RTC to local timezone or UTC</description>
+                <message gettext-domain="systemd">Authentication is required to control whether the RTC stores the local or UTC time.</message>
+                <defaults>
+                        <allow_any>auth_admin_keep</allow_any>
+                        <allow_inactive>auth_admin_keep</allow_inactive>
+                        <allow_active>auth_admin_keep</allow_active>
+                </defaults>
+        </action>
+
+        <action id="org.freedesktop.timedate1.set-ntp">
+                <description gettext-domain="systemd">Turn network time synchronization on or off</description>
+                <message gettext-domain="systemd">Authentication is required to control whether network time synchronization shall be enabled.</message>
+                <defaults>
+                        <allow_any>auth_admin_keep</allow_any>
+                        <allow_inactive>auth_admin_keep</allow_inactive>
+                        <allow_active>auth_admin_keep</allow_active>
+                </defaults>
+        </action>
+
+</policyconfig>
diff --git a/src/timedate/org.freedesktop.timedate1.service b/src/timedate/org.freedesktop.timedate1.service
new file mode 100644
index 0000000..d5f3a6e
--- /dev/null
+++ b/src/timedate/org.freedesktop.timedate1.service
@@ -0,0 +1,14 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
+#  This file is part of systemd.
+#
+#  systemd is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU Lesser General Public License as published by
+#  the Free Software Foundation; either version 2.1 of the License, or
+#  (at your option) any later version.
+
+[D-BUS Service]
+Name=org.freedesktop.timedate1
+Exec=/bin/false
+User=root
+SystemdService=dbus-org.freedesktop.timedate1.service
diff --git a/src/timedate/timedatectl.c b/src/timedate/timedatectl.c
new file mode 100644
index 0000000..1e7b262
--- /dev/null
+++ b/src/timedate/timedatectl.c
@@ -0,0 +1,883 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include <getopt.h>
+#include <locale.h>
+#include <math.h>
+#include <stdbool.h>
+#include <stdlib.h>
+
+#include "sd-bus.h"
+
+#include "bus-error.h"
+#include "bus-util.h"
+#include "in-addr-util.h"
+#include "main-func.h"
+#include "pager.h"
+#include "parse-util.h"
+#include "pretty-print.h"
+#include "spawn-polkit-agent.h"
+#include "sparse-endian.h"
+#include "string-table.h"
+#include "strv.h"
+#include "terminal-util.h"
+#include "util.h"
+#include "verbs.h"
+
+static PagerFlags arg_pager_flags = 0;
+static bool arg_ask_password = true;
+static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
+static char *arg_host = NULL;
+static bool arg_adjust_system_clock = false;
+static bool arg_monitor = false;
+static char **arg_property = NULL;
+static bool arg_value = false;
+static bool arg_all = false;
+
+typedef struct StatusInfo {
+        usec_t time;
+        const char *timezone;
+
+        usec_t rtc_time;
+        bool rtc_local;
+
+        bool ntp_capable;
+        bool ntp_active;
+        bool ntp_synced;
+} StatusInfo;
+
+static void print_status_info(const StatusInfo *i) {
+        const char *old_tz = NULL, *tz;
+        bool have_time = false;
+        char a[LINE_MAX];
+        struct tm tm;
+        time_t sec;
+        size_t n;
+        int r;
+
+        assert(i);
+
+        /* Save the old $TZ */
+        tz = getenv("TZ");
+        if (tz)
+                old_tz = strdupa(tz);
+
+        /* Set the new $TZ */
+        if (setenv("TZ", isempty(i->timezone) ? "UTC" : i->timezone, true) < 0)
+                log_warning_errno(errno, "Failed to set TZ environment variable, ignoring: %m");
+        else
+                tzset();
+
+        if (i->time != 0) {
+                sec = (time_t) (i->time / USEC_PER_SEC);
+                have_time = true;
+        } else if (IN_SET(arg_transport, BUS_TRANSPORT_LOCAL, BUS_TRANSPORT_MACHINE)) {
+                sec = time(NULL);
+                have_time = true;
+        } else
+                log_warning("Could not get time from timedated and not operating locally, ignoring.");
+
+        if (have_time) {
+                n = strftime(a, sizeof a, "%a %Y-%m-%d %H:%M:%S %Z", localtime_r(&sec, &tm));
+                printf("               Local time: %s\n", n > 0 ? a : "n/a");
+
+                n = strftime(a, sizeof a, "%a %Y-%m-%d %H:%M:%S UTC", gmtime_r(&sec, &tm));
+                printf("           Universal time: %s\n", n > 0 ? a : "n/a");
+        } else {
+                printf("               Local time: %s\n", "n/a");
+                printf("           Universal time: %s\n", "n/a");
+        }
+
+        if (i->rtc_time > 0) {
+                time_t rtc_sec;
+
+                rtc_sec = (time_t) (i->rtc_time / USEC_PER_SEC);
+                n = strftime(a, sizeof a, "%a %Y-%m-%d %H:%M:%S", gmtime_r(&rtc_sec, &tm));
+                printf("                 RTC time: %s\n", n > 0 ? a : "n/a");
+        } else
+                printf("                 RTC time: %s\n", "n/a");
+
+        if (have_time)
+                n = strftime(a, sizeof a, "%Z, %z", localtime_r(&sec, &tm));
+
+        /* Restore the $TZ */
+        if (old_tz)
+                r = setenv("TZ", old_tz, true);
+        else
+                r = unsetenv("TZ");
+        if (r < 0)
+                log_warning_errno(errno, "Failed to set TZ environment variable, ignoring: %m");
+        else
+                tzset();
+
+        printf("                Time zone: %s (%s)\n"
+               "System clock synchronized: %s\n"
+               "              NTP service: %s\n"
+               "          RTC in local TZ: %s\n",
+               strna(i->timezone), have_time && n > 0 ? a : "n/a",
+               yes_no(i->ntp_synced),
+               i->ntp_capable ? (i->ntp_active ? "active" : "inactive") : "n/a",
+               yes_no(i->rtc_local));
+
+        if (i->rtc_local)
+                printf("\n%s"
+                       "Warning: The system is configured to read the RTC time in the local time zone.\n"
+                       "         This mode cannot be fully supported. It will create various problems\n"
+                       "         with time zone changes and daylight saving time adjustments. The RTC\n"
+                       "         time is never updated, it relies on external facilities to maintain it.\n"
+                       "         If at all possible, use RTC in UTC by calling\n"
+                       "         'timedatectl set-local-rtc 0'.%s\n", ansi_highlight(), ansi_normal());
+}
+
+static int show_status(int argc, char **argv, void *userdata) {
+        StatusInfo info = {};
+        static const struct bus_properties_map map[]  = {
+                { "Timezone",        "s", NULL, offsetof(StatusInfo, timezone)    },
+                { "LocalRTC",        "b", NULL, offsetof(StatusInfo, rtc_local)   },
+                { "NTP",             "b", NULL, offsetof(StatusInfo, ntp_active)  },
+                { "CanNTP",          "b", NULL, offsetof(StatusInfo, ntp_capable) },
+                { "NTPSynchronized", "b", NULL, offsetof(StatusInfo, ntp_synced)  },
+                { "TimeUSec",        "t", NULL, offsetof(StatusInfo, time)        },
+                { "RTCTimeUSec",     "t", NULL, offsetof(StatusInfo, rtc_time)    },
+                {}
+        };
+
+        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+        _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
+        sd_bus *bus = userdata;
+        int r;
+
+        assert(bus);
+
+        r = bus_map_all_properties(bus,
+                                   "org.freedesktop.timedate1",
+                                   "/org/freedesktop/timedate1",
+                                   map,
+                                   BUS_MAP_BOOLEAN_AS_BOOL,
+                                   &error,
+                                   &m,
+                                   &info);
+        if (r < 0)
+                return log_error_errno(r, "Failed to query server: %s", bus_error_message(&error, r));
+
+        print_status_info(&info);
+
+        return r;
+}
+
+static int show_properties(int argc, char **argv, void *userdata) {
+        sd_bus *bus = userdata;
+        int r;
+
+        assert(bus);
+
+        r = bus_print_all_properties(bus,
+                                     "org.freedesktop.timedate1",
+                                     "/org/freedesktop/timedate1",
+                                     NULL,
+                                     arg_property,
+                                     arg_value,
+                                     arg_all,
+                                     NULL);
+        if (r < 0)
+                return bus_log_parse_error(r);
+
+        return 0;
+}
+
+static int set_time(int argc, char **argv, void *userdata) {
+        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+        bool relative = false, interactive = arg_ask_password;
+        sd_bus *bus = userdata;
+        usec_t t;
+        int r;
+
+        polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
+
+        r = parse_timestamp(argv[1], &t);
+        if (r < 0)
+                return log_error_errno(r, "Failed to parse time specification '%s': %m", argv[1]);
+
+        r = sd_bus_call_method(bus,
+                               "org.freedesktop.timedate1",
+                               "/org/freedesktop/timedate1",
+                               "org.freedesktop.timedate1",
+                               "SetTime",
+                               &error,
+                               NULL,
+                               "xbb", (int64_t) t, relative, interactive);
+        if (r < 0)
+                return log_error_errno(r, "Failed to set time: %s", bus_error_message(&error, r));
+
+        return 0;
+}
+
+static int set_timezone(int argc, char **argv, void *userdata) {
+        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+        sd_bus *bus = userdata;
+        int r;
+
+        polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
+
+        r = sd_bus_call_method(bus,
+                               "org.freedesktop.timedate1",
+                               "/org/freedesktop/timedate1",
+                               "org.freedesktop.timedate1",
+                               "SetTimezone",
+                               &error,
+                               NULL,
+                               "sb", argv[1], arg_ask_password);
+        if (r < 0)
+                return log_error_errno(r, "Failed to set time zone: %s", bus_error_message(&error, r));
+
+        return 0;
+}
+
+static int set_local_rtc(int argc, char **argv, void *userdata) {
+        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+        sd_bus *bus = userdata;
+        int r, b;
+
+        polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
+
+        b = parse_boolean(argv[1]);
+        if (b < 0)
+                return log_error_errno(b, "Failed to parse local RTC setting '%s': %m", argv[1]);
+
+        r = sd_bus_call_method(bus,
+                               "org.freedesktop.timedate1",
+                               "/org/freedesktop/timedate1",
+                               "org.freedesktop.timedate1",
+                               "SetLocalRTC",
+                               &error,
+                               NULL,
+                               "bbb", b, arg_adjust_system_clock, arg_ask_password);
+        if (r < 0)
+                return log_error_errno(r, "Failed to set local RTC: %s", bus_error_message(&error, r));
+
+        return 0;
+}
+
+static int set_ntp(int argc, char **argv, void *userdata) {
+        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+        sd_bus *bus = userdata;
+        int b, r;
+
+        polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
+
+        b = parse_boolean(argv[1]);
+        if (b < 0)
+                return log_error_errno(b, "Failed to parse NTP setting '%s': %m", argv[1]);
+
+        r = sd_bus_call_method(bus,
+                               "org.freedesktop.timedate1",
+                               "/org/freedesktop/timedate1",
+                               "org.freedesktop.timedate1",
+                               "SetNTP",
+                               &error,
+                               NULL,
+                               "bb", b, arg_ask_password);
+        if (r < 0)
+                return log_error_errno(r, "Failed to set ntp: %s", bus_error_message(&error, r));
+
+        return 0;
+}
+
+static int list_timezones(int argc, char **argv, void *userdata) {
+        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+        sd_bus *bus = userdata;
+        _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+        int r;
+        char** zones;
+
+        r = sd_bus_call_method(bus,
+                               "org.freedesktop.timedate1",
+                               "/org/freedesktop/timedate1",
+                               "org.freedesktop.timedate1",
+                               "ListTimezones",
+                               &error,
+                               &reply,
+                               NULL);
+        if (r < 0)
+                return log_error_errno(r, "Failed to request list of time zones: %s",
+                                       bus_error_message(&error, r));
+
+        r = sd_bus_message_read_strv(reply, &zones);
+        if (r < 0)
+                return bus_log_parse_error(r);
+
+        (void) pager_open(arg_pager_flags);
+        strv_print(zones);
+
+        return 0;
+}
+
+typedef struct NTPStatusInfo {
+        const char *server_name;
+        char *server_address;
+        usec_t poll_interval, poll_max, poll_min;
+        usec_t root_distance_max;
+
+        uint32_t leap, version, mode, stratum;
+        int32_t precision;
+        usec_t root_delay, root_dispersion;
+        union {
+                char str[5];
+                uint32_t val;
+        } reference;
+        usec_t origin, recv, trans, dest;
+
+        bool spike;
+        uint64_t packet_count;
+        usec_t jitter;
+
+        int64_t freq;
+} NTPStatusInfo;
+
+static void ntp_status_info_clear(NTPStatusInfo *p) {
+        p->server_address = mfree(p->server_address);
+}
+
+static const char * const ntp_leap_table[4] = {
+        [0] = "normal",
+        [1] = "last minute of the day has 61 seconds",
+        [2] = "last minute of the day has 59 seconds",
+        [3] = "not synchronized",
+};
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wtype-limits"
+DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(ntp_leap, uint32_t);
+#pragma GCC diagnostic pop
+
+static void print_ntp_status_info(NTPStatusInfo *i) {
+        char ts[FORMAT_TIMESPAN_MAX], tmin[FORMAT_TIMESPAN_MAX], tmax[FORMAT_TIMESPAN_MAX];
+        usec_t delay, t14, t23, offset, root_distance;
+        bool offset_sign;
+
+        assert(i);
+
+        /*
+         * "Timestamp Name          ID   When Generated
+         *  ------------------------------------------------------------
+         *  Originate Timestamp     T1   time request sent by client
+         *  Receive Timestamp       T2   time request received by server
+         *  Transmit Timestamp      T3   time reply sent by server
+         *  Destination Timestamp   T4   time reply received by client
+         *
+         *  The round-trip delay, d, and system clock offset, t, are defined as:
+         *  d = (T4 - T1) - (T3 - T2)     t = ((T2 - T1) + (T3 - T4)) / 2"
+         */
+
+        printf("       Server: %s (%s)\n",
+               i->server_address, i->server_name);
+        printf("Poll interval: %s (min: %s; max %s)\n",
+               format_timespan(ts, sizeof(ts), i->poll_interval, 0),
+               format_timespan(tmin, sizeof(tmin), i->poll_min, 0),
+               format_timespan(tmax, sizeof(tmax), i->poll_max, 0));
+
+        if (i->packet_count == 0) {
+                printf(" Packet count: 0\n");
+                return;
+        }
+
+        if (i->dest < i->origin || i->trans < i->recv || i->dest - i->origin < i->trans - i->recv) {
+                log_error("Invalid NTP response");
+                return;
+        }
+
+        delay = (i->dest - i->origin) - (i->trans - i->recv);
+
+        t14 = i->origin + i->dest;
+        t23 = i->recv + i->trans;
+        offset_sign = t14 < t23;
+        offset = (offset_sign ? t23 - t14 : t14 - t23) / 2;
+
+        root_distance = i->root_delay / 2 + i->root_dispersion;
+
+        printf("         Leap: %s\n"
+               "      Version: %" PRIu32 "\n"
+               "      Stratum: %" PRIu32 "\n",
+               ntp_leap_to_string(i->leap),
+               i->version,
+               i->stratum);
+        if (i->stratum <= 1)
+                printf("    Reference: %s\n", i->reference.str);
+        else
+                printf("    Reference: %" PRIX32 "\n", be32toh(i->reference.val));
+        printf("    Precision: %s (%" PRIi32 ")\n",
+               format_timespan(ts, sizeof(ts), DIV_ROUND_UP((nsec_t) (exp2(i->precision) * NSEC_PER_SEC), NSEC_PER_USEC), 0),
+               i->precision);
+        printf("Root distance: %s (max: %s)\n",
+               format_timespan(ts, sizeof(ts), root_distance, 0),
+               format_timespan(tmax, sizeof(tmax), i->root_distance_max, 0));
+        printf("       Offset: %s%s\n",
+               offset_sign ? "+" : "-",
+               format_timespan(ts, sizeof(ts), offset, 0));
+        printf("        Delay: %s\n",
+               format_timespan(ts, sizeof(ts), delay, 0));
+        printf("       Jitter: %s\n",
+               format_timespan(ts, sizeof(ts), i->jitter, 0));
+        printf(" Packet count: %" PRIu64 "\n", i->packet_count);
+
+        if (!i->spike)
+                printf("    Frequency: %+.3fppm\n",
+                       (double) i->freq / 0x10000);
+}
+
+static int map_server_address(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
+        char **p = (char **) userdata;
+        const void *d;
+        int family, r;
+        size_t sz;
+
+        assert(p);
+
+        r = sd_bus_message_enter_container(m, 'r', "iay");
+        if (r < 0)
+                return r;
+
+        r = sd_bus_message_read(m, "i", &family);
+        if (r < 0)
+                return r;
+
+        r = sd_bus_message_read_array(m, 'y', &d, &sz);
+        if (r < 0)
+                return r;
+
+        r = sd_bus_message_exit_container(m);
+        if (r < 0)
+                return r;
+
+        if (sz == 0 && family == AF_UNSPEC) {
+                *p = mfree(*p);
+                return 0;
+        }
+
+        if (!IN_SET(family, AF_INET, AF_INET6))
+                return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+                                       "Unknown address family %i", family);
+
+        if (sz != FAMILY_ADDRESS_SIZE(family))
+                return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+                                       "Invalid address size");
+
+        r = in_addr_to_string(family, d, p);
+        if (r < 0)
+                return r;
+
+        return 0;
+}
+
+static int map_ntp_message(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
+        NTPStatusInfo *p = userdata;
+        const void *d;
+        size_t sz;
+        int32_t b;
+        int r;
+
+        assert(p);
+
+        r = sd_bus_message_enter_container(m, 'r', "uuuuittayttttbtt");
+        if (r < 0)
+                return r;
+
+        r = sd_bus_message_read(m, "uuuuitt",
+                                &p->leap, &p->version, &p->mode, &p->stratum, &p->precision,
+                                &p->root_delay, &p->root_dispersion);
+        if (r < 0)
+                return r;
+
+        r = sd_bus_message_read_array(m, 'y', &d, &sz);
+        if (r < 0)
+                return r;
+
+        r = sd_bus_message_read(m, "ttttbtt",
+                                &p->origin, &p->recv, &p->trans, &p->dest,
+                                &b, &p->packet_count, &p->jitter);
+        if (r < 0)
+                return r;
+
+        r = sd_bus_message_exit_container(m);
+        if (r < 0)
+                return r;
+
+        if (sz != 4)
+                return -EINVAL;
+
+        memcpy(p->reference.str, d, sz);
+
+        p->spike = b;
+
+        return 0;
+}
+
+static int show_timesync_status_once(sd_bus *bus) {
+        static const struct bus_properties_map map_timesync[]  = {
+                { "ServerName",           "s",                  NULL,               offsetof(NTPStatusInfo, server_name)       },
+                { "ServerAddress",        "(iay)",              map_server_address, offsetof(NTPStatusInfo, server_address)    },
+                { "PollIntervalUSec",     "t",                  NULL,               offsetof(NTPStatusInfo, poll_interval)     },
+                { "PollIntervalMinUSec",  "t",                  NULL,               offsetof(NTPStatusInfo, poll_min)          },
+                { "PollIntervalMaxUSec",  "t",                  NULL,               offsetof(NTPStatusInfo, poll_max)          },
+                { "RootDistanceMaxUSec",  "t",                  NULL,               offsetof(NTPStatusInfo, root_distance_max) },
+                { "NTPMessage",           "(uuuuittayttttbtt)", map_ntp_message,    0                                          },
+                { "Frequency",            "x",                  NULL,               offsetof(NTPStatusInfo, freq)              },
+                {}
+        };
+        _cleanup_(ntp_status_info_clear) NTPStatusInfo info = {};
+        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+        _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
+        int r;
+
+        assert(bus);
+
+        r = bus_map_all_properties(bus,
+                                   "org.freedesktop.timesync1",
+                                   "/org/freedesktop/timesync1",
+                                   map_timesync,
+                                   BUS_MAP_BOOLEAN_AS_BOOL,
+                                   &error,
+                                   &m,
+                                   &info);
+        if (r < 0)
+                return log_error_errno(r, "Failed to query server: %s", bus_error_message(&error, r));
+
+        if (arg_monitor && !terminal_is_dumb())
+                fputs(ANSI_HOME_CLEAR, stdout);
+
+        print_ntp_status_info(&info);
+
+        return 0;
+}
+
+static int on_properties_changed(sd_bus_message *m, void *userdata, sd_bus_error *error) {
+        const char *name;
+        int r;
+
+        assert(m);
+
+        r = sd_bus_message_read(m, "s", &name);
+        if (r < 0)
+                return log_error_errno(r, "Failed to read interface name: %m");
+
+        if (!streq_ptr(name, "org.freedesktop.timesync1.Manager"))
+                return 0;
+
+        return show_timesync_status_once(sd_bus_message_get_bus(m));
+}
+
+static int show_timesync_status(int argc, char **argv, void *userdata) {
+        _cleanup_(sd_event_unrefp) sd_event *event = NULL;
+        sd_bus *bus = userdata;
+        int r;
+
+        assert(bus);
+
+        r = show_timesync_status_once(bus);
+        if (r < 0)
+                return r;
+
+        if (!arg_monitor)
+                return 0;
+
+        r = sd_event_default(&event);
+        if (r < 0)
+                return log_error_errno(r, "Failed to get event loop: %m");
+
+        r = sd_bus_match_signal(bus,
+                                NULL,
+                                "org.freedesktop.timesync1",
+                                "/org/freedesktop/timesync1",
+                                "org.freedesktop.DBus.Properties",
+                                "PropertiesChanged",
+                                on_properties_changed, NULL);
+        if (r < 0)
+                return log_error_errno(r, "Failed to request match for PropertiesChanged signal: %m");
+
+        r = sd_bus_attach_event(bus, event, SD_EVENT_PRIORITY_NORMAL);
+        if (r < 0)
+                return log_error_errno(r, "Failed to attach bus to event loop: %m");
+
+        r = sd_event_loop(event);
+        if (r < 0)
+                return log_error_errno(r, "Failed to run event loop: %m");
+
+        return 0;
+}
+
+static int print_timesync_property(const char *name, const char *expected_value, sd_bus_message *m, bool value, bool all) {
+        char type;
+        const char *contents;
+        int r;
+
+        assert(name);
+        assert(m);
+
+        r = sd_bus_message_peek_type(m, &type, &contents);
+        if (r < 0)
+                return r;
+
+        switch (type) {
+
+        case SD_BUS_TYPE_STRUCT:
+                if (streq(name, "NTPMessage")) {
+                        _cleanup_(ntp_status_info_clear) NTPStatusInfo i = {};
+                        char ts[FORMAT_TIMESPAN_MAX], stamp[FORMAT_TIMESTAMP_MAX];
+
+                        r = map_ntp_message(NULL, NULL, m, NULL, &i);
+                        if (r < 0)
+                                return r;
+
+                        if (i.packet_count == 0)
+                                return 1;
+
+                        if (!value) {
+                                fputs(name, stdout);
+                                fputc('=', stdout);
+                        }
+
+                        printf("{ Leap=%u, Version=%u, Mode=%u, Stratum=%u, Precision=%i,",
+                               i.leap, i.version, i.mode, i.stratum, i.precision);
+                        printf(" RootDelay=%s,",
+                               format_timespan(ts, sizeof(ts), i.root_delay, 0));
+                        printf(" RootDispersion=%s,",
+                               format_timespan(ts, sizeof(ts), i.root_dispersion, 0));
+
+                        if (i.stratum == 1)
+                                printf(" Reference=%s,", i.reference.str);
+                        else
+                                printf(" Reference=%" PRIX32 ",", be32toh(i.reference.val));
+
+                        printf(" OriginateTimestamp=%s,",
+                               format_timestamp(stamp, sizeof(stamp), i.origin));
+                        printf(" ReceiveTimestamp=%s,",
+                               format_timestamp(stamp, sizeof(stamp), i.recv));
+                        printf(" TransmitTimestamp=%s,",
+                               format_timestamp(stamp, sizeof(stamp), i.trans));
+                        printf(" DestinationTimestamp=%s,",
+                               format_timestamp(stamp, sizeof(stamp), i.dest));
+                        printf(" Ignored=%s PacketCount=%" PRIu64 ",",
+                               yes_no(i.spike), i.packet_count);
+                        printf(" Jitter=%s }\n",
+                               format_timespan(ts, sizeof(ts), i.jitter, 0));
+
+                        return 1;
+
+                } else if (streq(name, "ServerAddress")) {
+                        _cleanup_free_ char *str = NULL;
+
+                        r = map_server_address(NULL, NULL, m, NULL, &str);
+                        if (r < 0)
+                                return r;
+
+                        if (arg_all || !isempty(str))
+                                bus_print_property_value(name, expected_value, value, "%s", str);
+
+                        return 1;
+                }
+                break;
+        }
+
+        return 0;
+}
+
+static int show_timesync(int argc, char **argv, void *userdata) {
+        sd_bus *bus = userdata;
+        int r;
+
+        assert(bus);
+
+        r = bus_print_all_properties(bus,
+                                     "org.freedesktop.timesync1",
+                                     "/org/freedesktop/timesync1",
+                                     print_timesync_property,
+                                     arg_property,
+                                     arg_value,
+                                     arg_all,
+                                     NULL);
+        if (r < 0)
+                return bus_log_parse_error(r);
+
+        return 0;
+}
+
+static int help(void) {
+        _cleanup_free_ char *link = NULL;
+        int r;
+
+        r = terminal_urlify_man("timedatectl", "1", &link);
+        if (r < 0)
+                return log_oom();
+
+        printf("%s [OPTIONS...] COMMAND ...\n\n"
+               "Query or change system time and date settings.\n\n"
+               "  -h --help                Show this help message\n"
+               "     --version             Show package version\n"
+               "     --no-pager            Do not pipe output into a pager\n"
+               "     --no-ask-password     Do not prompt for password\n"
+               "  -H --host=[USER@]HOST    Operate on remote host\n"
+               "  -M --machine=CONTAINER   Operate on local container\n"
+               "     --adjust-system-clock Adjust system clock when changing local RTC mode\n"
+               "     --monitor             Monitor status of systemd-timesyncd\n"
+               "  -p --property=NAME       Show only properties by this name\n"
+               "  -a --all                 Show all properties, including empty ones\n"
+               "     --value               When showing properties, only print the value\n"
+               "\n"
+               "Commands:\n"
+               "  status                   Show current time settings\n"
+               "  show                     Show properties of systemd-timedated\n"
+               "  set-time TIME            Set system time\n"
+               "  set-timezone ZONE        Set system time zone\n"
+               "  list-timezones           Show known time zones\n"
+               "  set-local-rtc BOOL       Control whether RTC is in local time\n"
+               "  set-ntp BOOL             Enable or disable network time synchronization\n"
+               "\n"
+               "systemd-timesyncd Commands:\n"
+               "  timesync-status          Show status of systemd-timesyncd\n"
+               "  show-timesync            Show properties of systemd-timesyncd\n"
+               "\nSee the %s for details.\n"
+               , program_invocation_short_name
+               , link
+        );
+
+        return 0;
+}
+
+static int verb_help(int argc, char **argv, void *userdata) {
+        return help();
+}
+
+static int parse_argv(int argc, char *argv[]) {
+
+        enum {
+                ARG_VERSION = 0x100,
+                ARG_NO_PAGER,
+                ARG_ADJUST_SYSTEM_CLOCK,
+                ARG_NO_ASK_PASSWORD,
+                ARG_MONITOR,
+                ARG_VALUE,
+        };
+
+        static const struct option options[] = {
+                { "help",                no_argument,       NULL, 'h'                     },
+                { "version",             no_argument,       NULL, ARG_VERSION             },
+                { "no-pager",            no_argument,       NULL, ARG_NO_PAGER            },
+                { "host",                required_argument, NULL, 'H'                     },
+                { "machine",             required_argument, NULL, 'M'                     },
+                { "no-ask-password",     no_argument,       NULL, ARG_NO_ASK_PASSWORD     },
+                { "adjust-system-clock", no_argument,       NULL, ARG_ADJUST_SYSTEM_CLOCK },
+                { "monitor",             no_argument,       NULL, ARG_MONITOR             },
+                { "property",            required_argument, NULL, 'p'                     },
+                { "all",                 no_argument,       NULL, 'a'                     },
+                { "value",               no_argument,       NULL, ARG_VALUE               },
+                {}
+        };
+
+        int c, r;
+
+        assert(argc >= 0);
+        assert(argv);
+
+        while ((c = getopt_long(argc, argv, "hH:M:p:a", options, NULL)) >= 0)
+
+                switch (c) {
+
+                case 'h':
+                        return help();
+
+                case ARG_VERSION:
+                        return version();
+
+                case 'H':
+                        arg_transport = BUS_TRANSPORT_REMOTE;
+                        arg_host = optarg;
+                        break;
+
+                case 'M':
+                        arg_transport = BUS_TRANSPORT_MACHINE;
+                        arg_host = optarg;
+                        break;
+
+                case ARG_NO_ASK_PASSWORD:
+                        arg_ask_password = false;
+                        break;
+
+                case ARG_ADJUST_SYSTEM_CLOCK:
+                        arg_adjust_system_clock = true;
+                        break;
+
+                case ARG_NO_PAGER:
+                        arg_pager_flags |= PAGER_DISABLE;
+                        break;
+
+                case ARG_MONITOR:
+                        arg_monitor = true;
+                        break;
+
+                case 'p': {
+                        r = strv_extend(&arg_property, optarg);
+                        if (r < 0)
+                                return log_oom();
+
+                        /* If the user asked for a particular
+                         * property, show it to him, even if it is
+                         * empty. */
+                        arg_all = true;
+                        break;
+                }
+
+                case 'a':
+                        arg_all = true;
+                        break;
+
+                case ARG_VALUE:
+                        arg_value = true;
+                        break;
+
+                case '?':
+                        return -EINVAL;
+
+                default:
+                        assert_not_reached("Unhandled option");
+                }
+
+        return 1;
+}
+
+static int timedatectl_main(sd_bus *bus, int argc, char *argv[]) {
+        static const Verb verbs[] = {
+                { "status",          VERB_ANY, 1,        VERB_DEFAULT, show_status          },
+                { "show",            VERB_ANY, 1,        0,            show_properties      },
+                { "set-time",        2,        2,        0,            set_time             },
+                { "set-timezone",    2,        2,        0,            set_timezone         },
+                { "list-timezones",  VERB_ANY, 1,        0,            list_timezones       },
+                { "set-local-rtc",   2,        2,        0,            set_local_rtc        },
+                { "set-ntp",         2,        2,        0,            set_ntp              },
+                { "timesync-status", VERB_ANY, 1,        0,            show_timesync_status },
+                { "show-timesync",   VERB_ANY, 1,        0,            show_timesync        },
+                { "help",            VERB_ANY, VERB_ANY, 0,            verb_help            }, /* Not documented, but supported since it is created. */
+                {}
+        };
+
+        return dispatch_verb(argc, argv, verbs, bus);
+}
+
+static int run(int argc, char *argv[]) {
+        _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
+        int r;
+
+        setlocale(LC_ALL, "");
+        log_parse_environment();
+        log_open();
+
+        r = parse_argv(argc, argv);
+        if (r <= 0)
+                return r;
+
+        r = bus_connect_transport(arg_transport, arg_host, false, &bus);
+        if (r < 0)
+                return log_error_errno(r, "Failed to create bus connection: %m");
+
+        return timedatectl_main(bus, argc, argv);
+}
+
+DEFINE_MAIN_FUNCTION(run);
diff --git a/src/timedate/timedated.c b/src/timedate/timedated.c
new file mode 100644
index 0000000..eeb17b6
--- /dev/null
+++ b/src/timedate/timedated.c
@@ -0,0 +1,1048 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "sd-bus.h"
+#include "sd-event.h"
+#include "sd-messages.h"
+
+#include "alloc-util.h"
+#include "bus-common-errors.h"
+#include "bus-error.h"
+#include "bus-util.h"
+#include "clock-util.h"
+#include "def.h"
+#include "fileio-label.h"
+#include "fileio.h"
+#include "fs-util.h"
+#include "hashmap.h"
+#include "list.h"
+#include "main-func.h"
+#include "missing_capability.h"
+#include "path-util.h"
+#include "selinux-util.h"
+#include "signal-util.h"
+#include "string-util.h"
+#include "strv.h"
+#include "unit-def.h"
+#include "unit-name.h"
+#include "user-util.h"
+#include "util.h"
+
+#define NULL_ADJTIME_UTC "0.0 0 0\n0\nUTC\n"
+#define NULL_ADJTIME_LOCAL "0.0 0 0\n0\nLOCAL\n"
+
+typedef struct UnitStatusInfo {
+        char *name;
+        char *load_state;
+        char *unit_file_state;
+        char *active_state;
+        char *path;
+
+        LIST_FIELDS(struct UnitStatusInfo, units);
+} UnitStatusInfo;
+
+typedef struct Context {
+        char *zone;
+        bool local_rtc;
+        Hashmap *polkit_registry;
+        sd_bus_message *cache;
+
+        sd_bus_slot *slot_job_removed;
+
+        LIST_HEAD(UnitStatusInfo, units);
+} Context;
+
+static void unit_status_info_clear(UnitStatusInfo *p) {
+        assert(p);
+
+        p->load_state = mfree(p->load_state);
+        p->unit_file_state = mfree(p->unit_file_state);
+        p->active_state = mfree(p->active_state);
+}
+
+static void unit_status_info_free(UnitStatusInfo *p) {
+        assert(p);
+
+        unit_status_info_clear(p);
+        free(p->name);
+        free(p->path);
+        free(p);
+}
+
+static void context_clear(Context *c) {
+        UnitStatusInfo *p;
+
+        assert(c);
+
+        free(c->zone);
+        bus_verify_polkit_async_registry_free(c->polkit_registry);
+        sd_bus_message_unref(c->cache);
+
+        sd_bus_slot_unref(c->slot_job_removed);
+
+        while ((p = c->units)) {
+                LIST_REMOVE(units, c->units, p);
+                unit_status_info_free(p);
+        }
+}
+
+static int context_add_ntp_service(Context *c, const char *s) {
+        UnitStatusInfo *u;
+
+        if (!unit_name_is_valid(s, UNIT_NAME_PLAIN))
+                return -EINVAL;
+
+        /* Do not add this if it is already listed */
+        LIST_FOREACH(units, u, c->units)
+                if (streq(u->name, s))
+                        return 0;
+
+        u = new0(UnitStatusInfo, 1);
+        if (!u)
+                return -ENOMEM;
+
+        u->name = strdup(s);
+        if (!u->name) {
+                free(u);
+                return -ENOMEM;
+        }
+
+        LIST_APPEND(units, c->units, u);
+
+        return 0;
+}
+
+static int context_parse_ntp_services(Context *c) {
+        const char *env, *p;
+        int r;
+
+        assert(c);
+
+        env = getenv("SYSTEMD_TIMEDATED_NTP_SERVICES");
+        if (!env) {
+                r = context_add_ntp_service(c, "systemd-timesyncd.service");
+                if (r < 0)
+                        log_warning_errno(r, "Failed to add NTP service \"systemd-timesyncd.service\", ignoring: %m");
+
+                return 0;
+        }
+
+        for (p = env;;) {
+                _cleanup_free_ char *word = NULL;
+
+                r = extract_first_word(&p, &word, ":", 0);
+                if (r == 0)
+                        break;
+                if (r == -ENOMEM)
+                        return log_oom();
+                if (r < 0) {
+                        log_error("Invalid syntax, ignoring: %s", env);
+                        break;
+                }
+
+                r = context_add_ntp_service(c, word);
+                if (r < 0)
+                        log_warning_errno(r, "Failed to add NTP service \"%s\", ignoring: %m", word);
+        }
+
+        return 0;
+}
+
+static int context_ntp_service_is_active(Context *c) {
+        UnitStatusInfo *info;
+        int count = 0;
+
+        assert(c);
+
+        /* Call context_update_ntp_status() to update UnitStatusInfo before calling this. */
+
+        LIST_FOREACH(units, info, c->units)
+                count += !STRPTR_IN_SET(info->active_state, "inactive", "failed");
+
+        return count;
+}
+
+static int context_ntp_service_is_enabled(Context *c) {
+        UnitStatusInfo *info;
+        int count = 0;
+
+        assert(c);
+
+        /* Call context_update_ntp_status() to update UnitStatusInfo before calling this. */
+
+        LIST_FOREACH(units, info, c->units)
+                count += !STRPTR_IN_SET(info->unit_file_state, "masked", "masked-runtime", "disabled", "bad");
+
+        return count;
+}
+
+static int context_ntp_service_exists(Context *c) {
+        UnitStatusInfo *info;
+        int count = 0;
+
+        assert(c);
+
+        /* Call context_update_ntp_status() to update UnitStatusInfo before calling this. */
+
+        LIST_FOREACH(units, info, c->units)
+                count += streq_ptr(info->load_state, "loaded");
+
+        return count;
+}
+
+static int context_read_data(Context *c) {
+        _cleanup_free_ char *t = NULL;
+        int r;
+
+        assert(c);
+
+        r = get_timezone(&t);
+        if (r == -EINVAL)
+                log_warning_errno(r, "/etc/localtime should be a symbolic link to a time zone data file in /usr/share/zoneinfo/.");
+        else if (r < 0)
+                log_warning_errno(r, "Failed to get target of /etc/localtime: %m");
+
+        free_and_replace(c->zone, t);
+
+        c->local_rtc = clock_is_localtime(NULL) > 0;
+
+        return 0;
+}
+
+static int context_write_data_timezone(Context *c) {
+        _cleanup_free_ char *p = NULL;
+        int r = 0;
+
+        assert(c);
+
+        if (isempty(c->zone)) {
+                if (unlink("/etc/localtime") < 0 && errno != ENOENT)
+                        r = -errno;
+
+                return r;
+        }
+
+        p = strappend("../usr/share/zoneinfo/", c->zone);
+        if (!p)
+                return log_oom();
+
+        r = symlink_atomic(p, "/etc/localtime");
+        if (r < 0)
+                return r;
+
+        return 0;
+}
+
+static int context_write_data_local_rtc(Context *c) {
+        int r;
+        _cleanup_free_ char *s = NULL, *w = NULL;
+
+        assert(c);
+
+        r = read_full_file("/etc/adjtime", &s, NULL);
+        if (r < 0) {
+                if (r != -ENOENT)
+                        return r;
+
+                if (!c->local_rtc)
+                        return 0;
+
+                w = strdup(NULL_ADJTIME_LOCAL);
+                if (!w)
+                        return -ENOMEM;
+        } else {
+                char *p;
+                const char *e = "\n"; /* default if there is less than 3 lines */
+                const char *prepend = "";
+                size_t a, b;
+
+                p = strchrnul(s, '\n');
+                if (*p == '\0')
+                        /* only one line, no \n terminator */
+                        prepend = "\n0\n";
+                else if (p[1] == '\0') {
+                        /* only one line, with \n terminator */
+                        ++p;
+                        prepend = "0\n";
+                } else {
+                        p = strchr(p+1, '\n');
+                        if (!p) {
+                                /* only two lines, no \n terminator */
+                                prepend = "\n";
+                                p = s + strlen(s);
+                        } else {
+                                char *end;
+                                /* third line might have a \n terminator or not */
+                                p++;
+                                end = strchr(p, '\n');
+                                /* if we actually have a fourth line, use that as suffix "e", otherwise the default \n */
+                                if (end)
+                                        e = end;
+                        }
+                }
+
+                a = p - s;
+                b = strlen(e);
+
+                w = new(char, a + (c->local_rtc ? 5 : 3) + strlen(prepend) + b + 1);
+                if (!w)
+                        return -ENOMEM;
+
+                *(char*) mempcpy(stpcpy(stpcpy(mempcpy(w, s, a), prepend), c->local_rtc ? "LOCAL" : "UTC"), e, b) = 0;
+
+                if (streq(w, NULL_ADJTIME_UTC)) {
+                        if (unlink("/etc/adjtime") < 0)
+                                if (errno != ENOENT)
+                                        return -errno;
+
+                        return 0;
+                }
+        }
+
+        mac_selinux_init();
+        return write_string_file_atomic_label("/etc/adjtime", w);
+}
+
+static int context_update_ntp_status(Context *c, sd_bus *bus, sd_bus_message *m) {
+        static const struct bus_properties_map map[] = {
+                { "LoadState",     "s", NULL, offsetof(UnitStatusInfo, load_state)      },
+                { "ActiveState",   "s", NULL, offsetof(UnitStatusInfo, active_state)    },
+                { "UnitFileState", "s", NULL, offsetof(UnitStatusInfo, unit_file_state) },
+                {}
+        };
+        UnitStatusInfo *u;
+        int r;
+
+        assert(c);
+        assert(bus);
+
+        /* Suppress calling context_update_ntp_status() multiple times within single DBus transaction. */
+        if (m) {
+                if (m == c->cache)
+                        return 0;
+
+                sd_bus_message_unref(c->cache);
+                c->cache = sd_bus_message_ref(m);
+        }
+
+        LIST_FOREACH(units, u, c->units) {
+                _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+                _cleanup_free_ char *path = NULL;
+
+                unit_status_info_clear(u);
+
+                path = unit_dbus_path_from_name(u->name);
+                if (!path)
+                        return -ENOMEM;
+
+                r = bus_map_all_properties(
+                                bus,
+                                "org.freedesktop.systemd1",
+                                path,
+                                map,
+                                BUS_MAP_STRDUP,
+                                &error,
+                                NULL,
+                                u);
+                if (r < 0)
+                        return log_error_errno(r, "Failed to get properties: %s", bus_error_message(&error, r));
+        }
+
+        return 0;
+}
+
+static int match_job_removed(sd_bus_message *m, void *userdata, sd_bus_error *error) {
+        Context *c = userdata;
+        UnitStatusInfo *u;
+        const char *path;
+        unsigned n = 0;
+        int r;
+
+        assert(c);
+        assert(m);
+
+        r = sd_bus_message_read(m, "uoss", NULL, &path, NULL, NULL);
+        if (r < 0) {
+                bus_log_parse_error(r);
+                return 0;
+        }
+
+        LIST_FOREACH(units, u, c->units)
+                if (streq_ptr(path, u->path))
+                        u->path = mfree(u->path);
+                else
+                        n += !!u->path;
+
+        if (n == 0) {
+                (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), "/org/freedesktop/timedate1", "org.freedesktop.timedate1", "NTP", NULL);
+
+                c->slot_job_removed = sd_bus_slot_unref(c->slot_job_removed);
+        }
+
+        return 0;
+}
+
+static int unit_start_or_stop(UnitStatusInfo *u, sd_bus *bus, sd_bus_error *error, bool start) {
+        _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+        const char *path;
+        int r;
+
+        assert(u);
+        assert(bus);
+        assert(error);
+
+        r = sd_bus_call_method(
+                bus,
+                "org.freedesktop.systemd1",
+                "/org/freedesktop/systemd1",
+                "org.freedesktop.systemd1.Manager",
+                start ? "StartUnit" : "StopUnit",
+                error,
+                &reply,
+                "ss",
+                u->name,
+                "replace");
+        if (r < 0)
+                return r;
+
+        r = sd_bus_message_read(reply, "o", &path);
+        if (r < 0)
+                return bus_log_parse_error(r);
+
+        r = free_and_strdup(&u->path, path);
+        if (r < 0)
+                return log_oom();
+
+        return 0;
+}
+
+static int unit_enable_or_disable(UnitStatusInfo *u, sd_bus *bus, sd_bus_error *error, bool enable) {
+        int r;
+
+        assert(u);
+        assert(bus);
+        assert(error);
+
+        /* Call context_update_ntp_status() to update UnitStatusInfo before calling this. */
+
+        if (streq(u->unit_file_state, "enabled") == enable)
+                return 0;
+
+        if (enable)
+                r = sd_bus_call_method(
+                                bus,
+                                "org.freedesktop.systemd1",
+                                "/org/freedesktop/systemd1",
+                                "org.freedesktop.systemd1.Manager",
+                                "EnableUnitFiles",
+                                error,
+                                NULL,
+                                "asbb", 1,
+                                u->name,
+                                false, true);
+        else
+                r = sd_bus_call_method(
+                                bus,
+                                "org.freedesktop.systemd1",
+                                "/org/freedesktop/systemd1",
+                                "org.freedesktop.systemd1.Manager",
+                                "DisableUnitFiles",
+                                error,
+                                NULL,
+                                "asb", 1,
+                                u->name,
+                                false);
+        if (r < 0)
+                return r;
+
+        r = sd_bus_call_method(
+                        bus,
+                        "org.freedesktop.systemd1",
+                        "/org/freedesktop/systemd1",
+                        "org.freedesktop.systemd1.Manager",
+                        "Reload",
+                        error,
+                        NULL,
+                        NULL);
+        if (r < 0)
+                return r;
+
+        return 0;
+}
+
+static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_time, "t", now(CLOCK_REALTIME));
+static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_ntp_sync, "b", ntp_synced());
+
+static int property_get_rtc_time(
+                sd_bus *bus,
+                const char *path,
+                const char *interface,
+                const char *property,
+                sd_bus_message *reply,
+                void *userdata,
+                sd_bus_error *error) {
+
+        struct tm tm;
+        usec_t t;
+        int r;
+
+        zero(tm);
+        r = clock_get_hwclock(&tm);
+        if (r == -EBUSY) {
+                log_warning("/dev/rtc is busy. Is somebody keeping it open continuously? That's not a good idea... Returning a bogus RTC timestamp.");
+                t = 0;
+        } else if (r == -ENOENT) {
+                log_debug("/dev/rtc not found.");
+                t = 0; /* no RTC found */
+        } else if (r < 0)
+                return sd_bus_error_set_errnof(error, r, "Failed to read RTC: %m");
+        else
+                t = (usec_t) timegm(&tm) * USEC_PER_SEC;
+
+        return sd_bus_message_append(reply, "t", t);
+}
+
+static int property_get_can_ntp(
+                sd_bus *bus,
+                const char *path,
+                const char *interface,
+                const char *property,
+                sd_bus_message *reply,
+                void *userdata,
+                sd_bus_error *error) {
+
+        Context *c = userdata;
+        int r;
+
+        assert(c);
+        assert(bus);
+        assert(property);
+        assert(reply);
+        assert(error);
+
+        if (c->slot_job_removed)
+                /* When the previous request is not finished, then assume NTP is enabled. */
+                return sd_bus_message_append(reply, "b", true);
+
+        r = context_update_ntp_status(c, bus, reply);
+        if (r < 0)
+                return r;
+
+        return sd_bus_message_append(reply, "b", context_ntp_service_exists(c) > 0);
+}
+
+static int property_get_ntp(
+                sd_bus *bus,
+                const char *path,
+                const char *interface,
+                const char *property,
+                sd_bus_message *reply,
+                void *userdata,
+                sd_bus_error *error) {
+
+        Context *c = userdata;
+        int r;
+
+        assert(c);
+        assert(bus);
+        assert(property);
+        assert(reply);
+        assert(error);
+
+        if (c->slot_job_removed)
+                /* When the previous request is not finished, then assume NTP is active. */
+                return sd_bus_message_append(reply, "b", true);
+
+        r = context_update_ntp_status(c, bus, reply);
+        if (r < 0)
+                return r;
+
+        return sd_bus_message_append(reply, "b", context_ntp_service_is_active(c) > 0);
+}
+
+static int method_set_timezone(sd_bus_message *m, void *userdata, sd_bus_error *error) {
+        Context *c = userdata;
+        int interactive, r;
+        const char *z;
+
+        assert(m);
+        assert(c);
+
+        r = sd_bus_message_read(m, "sb", &z, &interactive);
+        if (r < 0)
+                return r;
+
+        if (!timezone_is_valid(z, LOG_DEBUG))
+                return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid time zone '%s'", z);
+
+        if (streq_ptr(z, c->zone))
+                return sd_bus_reply_method_return(m, NULL);
+
+        r = bus_verify_polkit_async(
+                        m,
+                        CAP_SYS_TIME,
+                        "org.freedesktop.timedate1.set-timezone",
+                        NULL,
+                        interactive,
+                        UID_INVALID,
+                        &c->polkit_registry,
+                        error);
+        if (r < 0)
+                return r;
+        if (r == 0)
+                return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
+
+        r = free_and_strdup(&c->zone, z);
+        if (r < 0)
+                return r;
+
+        /* 1. Write new configuration file */
+        r = context_write_data_timezone(c);
+        if (r < 0) {
+                log_error_errno(r, "Failed to set time zone: %m");
+                return sd_bus_error_set_errnof(error, r, "Failed to set time zone: %m");
+        }
+
+        /* 2. Make glibc notice the new timezone */
+        tzset();
+
+        /* 3. Tell the kernel our timezone */
+        r = clock_set_timezone(NULL);
+        if (r < 0)
+                log_debug_errno(r, "Failed to tell kernel about timezone, ignoring: %m");
+
+        if (c->local_rtc) {
+                struct timespec ts;
+                struct tm tm;
+
+                /* 4. Sync RTC from system clock, with the new delta */
+                assert_se(clock_gettime(CLOCK_REALTIME, &ts) == 0);
+                assert_se(localtime_r(&ts.tv_sec, &tm));
+
+                r = clock_set_hwclock(&tm);
+                if (r < 0)
+                        log_debug_errno(r, "Failed to sync time to hardware clock, ignoring: %m");
+        }
+
+        log_struct(LOG_INFO,
+                   "MESSAGE_ID=" SD_MESSAGE_TIMEZONE_CHANGE_STR,
+                   "TIMEZONE=%s", c->zone,
+                   "TIMEZONE_SHORTNAME=%s", tzname[daylight],
+                   "DAYLIGHT=%i", daylight,
+                   LOG_MESSAGE("Changed time zone to '%s' (%s).", c->zone, tzname[daylight]));
+
+        (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), "/org/freedesktop/timedate1", "org.freedesktop.timedate1", "Timezone", NULL);
+
+        return sd_bus_reply_method_return(m, NULL);
+}
+
+static int method_set_local_rtc(sd_bus_message *m, void *userdata, sd_bus_error *error) {
+        int lrtc, fix_system, interactive;
+        Context *c = userdata;
+        struct timespec ts;
+        int r;
+
+        assert(m);
+        assert(c);
+
+        r = sd_bus_message_read(m, "bbb", &lrtc, &fix_system, &interactive);
+        if (r < 0)
+                return r;
+
+        if (lrtc == c->local_rtc)
+                return sd_bus_reply_method_return(m, NULL);
+
+        r = bus_verify_polkit_async(
+                        m,
+                        CAP_SYS_TIME,
+                        "org.freedesktop.timedate1.set-local-rtc",
+                        NULL,
+                        interactive,
+                        UID_INVALID,
+                        &c->polkit_registry,
+                        error);
+        if (r < 0)
+                return r;
+        if (r == 0)
+                return 1;
+
+        c->local_rtc = lrtc;
+
+        /* 1. Write new configuration file */
+        r = context_write_data_local_rtc(c);
+        if (r < 0) {
+                log_error_errno(r, "Failed to set RTC to local/UTC: %m");
+                return sd_bus_error_set_errnof(error, r, "Failed to set RTC to local/UTC: %m");
+        }
+
+        /* 2. Tell the kernel our timezone */
+        r = clock_set_timezone(NULL);
+        if (r < 0)
+                log_debug_errno(r, "Failed to tell kernel about timezone, ignoring: %m");
+
+        /* 3. Synchronize clocks */
+        assert_se(clock_gettime(CLOCK_REALTIME, &ts) == 0);
+
+        if (fix_system) {
+                struct tm tm;
+
+                /* Sync system clock from RTC; first, initialize the timezone fields of struct tm. */
+                if (c->local_rtc)
+                        localtime_r(&ts.tv_sec, &tm);
+                else
+                        gmtime_r(&ts.tv_sec, &tm);
+
+                /* Override the main fields of struct tm, but not the timezone fields */
+                r = clock_get_hwclock(&tm);
+                if (r < 0)
+                        log_debug_errno(r, "Failed to get hardware clock, ignoring: %m");
+                else {
+                        /* And set the system clock with this */
+                        if (c->local_rtc)
+                                ts.tv_sec = mktime(&tm);
+                        else
+                                ts.tv_sec = timegm(&tm);
+
+                        if (clock_settime(CLOCK_REALTIME, &ts) < 0)
+                                log_debug_errno(errno, "Failed to update system clock, ignoring: %m");
+                }
+
+        } else {
+                struct tm tm;
+
+                /* Sync RTC from system clock */
+                if (c->local_rtc)
+                        localtime_r(&ts.tv_sec, &tm);
+                else
+                        gmtime_r(&ts.tv_sec, &tm);
+
+                r = clock_set_hwclock(&tm);
+                if (r < 0)
+                        log_debug_errno(r, "Failed to sync time to hardware clock, ignoring: %m");
+        }
+
+        log_info("RTC configured to %s time.", c->local_rtc ? "local" : "UTC");
+
+        (void) sd_bus_emit_properties_changed(sd_bus_message_get_bus(m), "/org/freedesktop/timedate1", "org.freedesktop.timedate1", "LocalRTC", NULL);
+
+        return sd_bus_reply_method_return(m, NULL);
+}
+
+static int method_set_time(sd_bus_message *m, void *userdata, sd_bus_error *error) {
+        sd_bus *bus = sd_bus_message_get_bus(m);
+        int relative, interactive, r;
+        Context *c = userdata;
+        int64_t utc;
+        struct timespec ts;
+        usec_t start;
+        struct tm tm;
+
+        assert(m);
+        assert(c);
+
+        if (c->slot_job_removed)
+                return sd_bus_error_set(error, BUS_ERROR_AUTOMATIC_TIME_SYNC_ENABLED, "Previous request is not finished, refusing.");
+
+        r = context_update_ntp_status(c, bus, m);
+        if (r < 0)
+                return sd_bus_error_set_errnof(error, r, "Failed to update context: %m");
+
+        if (context_ntp_service_is_active(c) > 0)
+                return sd_bus_error_set(error, BUS_ERROR_AUTOMATIC_TIME_SYNC_ENABLED, "Automatic time synchronization is enabled");
+
+        /* this only gets used if dbus does not provide a timestamp */
+        start = now(CLOCK_MONOTONIC);
+
+        r = sd_bus_message_read(m, "xbb", &utc, &relative, &interactive);
+        if (r < 0)
+                return r;
+
+        if (!relative && utc <= 0)
+                return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid absolute time");
+
+        if (relative && utc == 0)
+                return sd_bus_reply_method_return(m, NULL);
+
+        if (relative) {
+                usec_t n, x;
+
+                n = now(CLOCK_REALTIME);
+                x = n + utc;
+
+                if ((utc > 0 && x < n) ||
+                    (utc < 0 && x > n))
+                        return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Time value overflow");
+
+                timespec_store(&ts, x);
+        } else
+                timespec_store(&ts, (usec_t) utc);
+
+        r = bus_verify_polkit_async(
+                        m,
+                        CAP_SYS_TIME,
+                        "org.freedesktop.timedate1.set-time",
+                        NULL,
+                        interactive,
+                        UID_INVALID,
+                        &c->polkit_registry,
+                        error);
+        if (r < 0)
+                return r;
+        if (r == 0)
+                return 1;
+
+        /* adjust ts for time spent in program */
+        r = sd_bus_message_get_monotonic_usec(m, &start);
+        /* when sd_bus_message_get_monotonic_usec() returns -ENODATA it does not modify &start */
+        if (r < 0 && r != -ENODATA)
+                return r;
+
+        timespec_store(&ts, timespec_load(&ts) + (now(CLOCK_MONOTONIC) - start));
+
+        /* Set system clock */
+        if (clock_settime(CLOCK_REALTIME, &ts) < 0) {
+                log_error_errno(errno, "Failed to set local time: %m");
+                return sd_bus_error_set_errnof(error, errno, "Failed to set local time: %m");
+        }
+
+        /* Sync down to RTC */
+        if (c->local_rtc)
+                localtime_r(&ts.tv_sec, &tm);
+        else
+                gmtime_r(&ts.tv_sec, &tm);
+
+        r = clock_set_hwclock(&tm);
+        if (r < 0)
+                log_debug_errno(r, "Failed to update hardware clock, ignoring: %m");
+
+        log_struct(LOG_INFO,
+                   "MESSAGE_ID=" SD_MESSAGE_TIME_CHANGE_STR,
+                   "REALTIME="USEC_FMT, timespec_load(&ts),
+                   LOG_MESSAGE("Changed local time to %s", ctime(&ts.tv_sec)));
+
+        return sd_bus_reply_method_return(m, NULL);
+}
+
+static int method_set_ntp(sd_bus_message *m, void *userdata, sd_bus_error *error) {
+        _cleanup_(sd_bus_slot_unrefp) sd_bus_slot *slot = NULL;
+        sd_bus *bus = sd_bus_message_get_bus(m);
+        Context *c = userdata;
+        UnitStatusInfo *u;
+        int enable, interactive, q, r;
+
+        assert(m);
+        assert(bus);
+        assert(c);
+
+        r = sd_bus_message_read(m, "bb", &enable, &interactive);
+        if (r < 0)
+                return r;
+
+        r = context_update_ntp_status(c, bus, m);
+        if (r < 0)
+                return r;
+
+        if (context_ntp_service_exists(c) <= 0)
+                return sd_bus_error_set(error, BUS_ERROR_NO_NTP_SUPPORT, "NTP not supported");
+
+        r = bus_verify_polkit_async(
+                        m,
+                        CAP_SYS_TIME,
+                        "org.freedesktop.timedate1.set-ntp",
+                        NULL,
+                        interactive,
+                        UID_INVALID,
+                        &c->polkit_registry,
+                        error);
+        if (r < 0)
+                return r;
+        if (r == 0)
+                return 1;
+
+        /* This method may be called frequently. Forget the previous job if it has not completed yet. */
+        LIST_FOREACH(units, u, c->units)
+                u->path = mfree(u->path);
+
+        if (!c->slot_job_removed) {
+                r = sd_bus_match_signal_async(
+                                bus,
+                                &slot,
+                                "org.freedesktop.systemd1",
+                                "/org/freedesktop/systemd1",
+                                "org.freedesktop.systemd1.Manager",
+                                "JobRemoved",
+                                match_job_removed, NULL, c);
+                if (r < 0)
+                        return r;
+        }
+
+        if (!enable)
+                LIST_FOREACH(units, u, c->units) {
+                        if (!streq(u->load_state, "loaded"))
+                                continue;
+
+                        q = unit_enable_or_disable(u, bus, error, enable);
+                        if (q < 0)
+                                r = q;
+
+                        q = unit_start_or_stop(u, bus, error, enable);
+                        if (q < 0)
+                                r = q;
+                }
+
+        else if (context_ntp_service_is_enabled(c) <= 0)
+                LIST_FOREACH(units, u, c->units) {
+                        if (!streq(u->load_state, "loaded"))
+                                continue;
+
+                        r = unit_enable_or_disable(u, bus, error, enable);
+                        if (r < 0)
+                                continue;
+
+                        r = unit_start_or_stop(u, bus, error, enable);
+                        break;
+                }
+
+        else
+                LIST_FOREACH(units, u, c->units) {
+                        if (!streq(u->load_state, "loaded") ||
+                            !streq(u->unit_file_state, "enabled"))
+                                continue;
+
+                        r = unit_start_or_stop(u, bus, error, enable);
+                        break;
+                }
+
+        if (r < 0)
+                return r;
+
+        if (slot)
+                c->slot_job_removed = TAKE_PTR(slot);
+
+        log_info("Set NTP to %sd", enable_disable(enable));
+
+        return sd_bus_reply_method_return(m, NULL);
+}
+
+static int method_list_timezones(sd_bus_message *m, void *userdata, sd_bus_error *error) {
+        _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+        _cleanup_strv_free_ char **zones = NULL;
+        int r;
+
+        assert(m);
+
+        r = get_timezones(&zones);
+        if (r < 0)
+                return sd_bus_error_set_errnof(error, r, "Failed to read list of time zones: %m");
+
+        r = sd_bus_message_new_method_return(m, &reply);
+        if (r < 0)
+                return r;
+
+        r = sd_bus_message_append_strv(reply, zones);
+        if (r < 0)
+                return r;
+
+        return sd_bus_send(NULL, reply, NULL);
+}
+
+static const sd_bus_vtable timedate_vtable[] = {
+        SD_BUS_VTABLE_START(0),
+        SD_BUS_PROPERTY("Timezone", "s", NULL, offsetof(Context, zone), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+        SD_BUS_PROPERTY("LocalRTC", "b", bus_property_get_bool, offsetof(Context, local_rtc), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+        SD_BUS_PROPERTY("CanNTP", "b", property_get_can_ntp, 0, 0),
+        SD_BUS_PROPERTY("NTP", "b", property_get_ntp, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+        SD_BUS_PROPERTY("NTPSynchronized", "b", property_get_ntp_sync, 0, 0),
+        SD_BUS_PROPERTY("TimeUSec", "t", property_get_time, 0, 0),
+        SD_BUS_PROPERTY("RTCTimeUSec", "t", property_get_rtc_time, 0, 0),
+        SD_BUS_METHOD("SetTime", "xbb", NULL, method_set_time, SD_BUS_VTABLE_UNPRIVILEGED),
+        SD_BUS_METHOD("SetTimezone", "sb", NULL, method_set_timezone, SD_BUS_VTABLE_UNPRIVILEGED),
+        SD_BUS_METHOD("SetLocalRTC", "bbb", NULL, method_set_local_rtc, SD_BUS_VTABLE_UNPRIVILEGED),
+        SD_BUS_METHOD("SetNTP", "bb", NULL, method_set_ntp, SD_BUS_VTABLE_UNPRIVILEGED),
+        SD_BUS_METHOD("ListTimezones", NULL, "as", method_list_timezones, SD_BUS_VTABLE_UNPRIVILEGED),
+        SD_BUS_VTABLE_END,
+};
+
+static int connect_bus(Context *c, sd_event *event, sd_bus **_bus) {
+        _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
+        int r;
+
+        assert(c);
+        assert(event);
+        assert(_bus);
+
+        r = sd_bus_default_system(&bus);
+        if (r < 0)
+                return log_error_errno(r, "Failed to get system bus connection: %m");
+
+        r = sd_bus_add_object_vtable(bus, NULL, "/org/freedesktop/timedate1", "org.freedesktop.timedate1", timedate_vtable, c);
+        if (r < 0)
+                return log_error_errno(r, "Failed to register object: %m");
+
+        r = sd_bus_request_name_async(bus, NULL, "org.freedesktop.timedate1", 0, NULL, NULL);
+        if (r < 0)
+                return log_error_errno(r, "Failed to request name: %m");
+
+        r = sd_bus_attach_event(bus, event, 0);
+        if (r < 0)
+                return log_error_errno(r, "Failed to attach bus to event loop: %m");
+
+        *_bus = TAKE_PTR(bus);
+
+        return 0;
+}
+
+static int run(int argc, char *argv[]) {
+        _cleanup_(context_clear) Context context = {};
+        _cleanup_(sd_event_unrefp) sd_event *event = NULL;
+        _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
+        int r;
+
+        log_setup_service();
+
+        umask(0022);
+
+        if (argc != 1)
+                return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "This program takes no arguments.");
+
+        assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0);
+
+        r = sd_event_default(&event);
+        if (r < 0)
+                return log_error_errno(r, "Failed to allocate event loop: %m");
+
+        (void) sd_event_set_watchdog(event, true);
+
+        r = sd_event_add_signal(event, NULL, SIGINT, NULL, NULL);
+        if (r < 0)
+                return log_error_errno(r, "Failed to install SIGINT handler: %m");
+
+        r = sd_event_add_signal(event, NULL, SIGTERM, NULL, NULL);
+        if (r < 0)
+                return log_error_errno(r, "Failed to install SIGTERM handler: %m");
+
+        r = connect_bus(&context, event, &bus);
+        if (r < 0)
+                return r;
+
+        (void) sd_bus_negotiate_timestamp(bus, true);
+
+        r = context_read_data(&context);
+        if (r < 0)
+                return log_error_errno(r, "Failed to read time zone data: %m");
+
+        r = context_parse_ntp_services(&context);
+        if (r < 0)
+                return r;
+
+        r = bus_event_loop_with_idle(event, bus, "org.freedesktop.timedate1", DEFAULT_EXIT_USEC, NULL, NULL);
+        if (r < 0)
+                return log_error_errno(r, "Failed to run event loop: %m");
+
+        return 0;
+}
+
+DEFINE_MAIN_FUNCTION(run);