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-rw-r--r--src/timedate/meson.build10
-rw-r--r--src/timedate/org.freedesktop.timedate1.conf29
-rw-r--r--src/timedate/org.freedesktop.timedate1.policy62
-rw-r--r--src/timedate/org.freedesktop.timedate1.service14
-rw-r--r--src/timedate/timedatectl.c883
-rw-r--r--src/timedate/timedated.c1048
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);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-29 00:24:50 +0000