diff options
Diffstat (limited to 'src/grp-timedate/timedatectl')
| l--------- | src/grp-timedate/timedatectl/GNUmakefile | 1 | ||||
| -rw-r--r-- | src/grp-timedate/timedatectl/Makefile | 43 | ||||
| -rw-r--r-- | src/grp-timedate/timedatectl/timedatectl.c | 507 | ||||
| -rw-r--r-- | src/grp-timedate/timedatectl/timedatectl.completion.bash | 76 | ||||
| -rw-r--r-- | src/grp-timedate/timedatectl/timedatectl.completion.zsh | 66 | ||||
| -rw-r--r-- | src/grp-timedate/timedatectl/timedatectl.xml | 253 |
6 files changed, 946 insertions, 0 deletions
diff --git a/src/grp-timedate/timedatectl/GNUmakefile b/src/grp-timedate/timedatectl/GNUmakefile new file mode 120000 index 0000000000..95e5924740 --- /dev/null +++ b/src/grp-timedate/timedatectl/GNUmakefile @@ -0,0 +1 @@ +../../../GNUmakefile
\ No newline at end of file diff --git a/src/grp-timedate/timedatectl/Makefile b/src/grp-timedate/timedatectl/Makefile new file mode 100644 index 0000000000..b1093dad9b --- /dev/null +++ b/src/grp-timedate/timedatectl/Makefile @@ -0,0 +1,43 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# 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. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +ifneq ($(ENABLE_TIMEDATED),) +timedatectl_SOURCES = \ + src/timedate/timedatectl.c + +timedatectl_LDADD = \ + libsystemd-shared.la + +bin_PROGRAMS += \ + timedatectl + +dist_bashcompletion_data += \ + shell-completion/bash/timedatectl + +dist_zshcompletion_data += \ + shell-completion/zsh/_timedatectl +endif # ENABLE_TIMEDATED + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-timedate/timedatectl/timedatectl.c b/src/grp-timedate/timedatectl/timedatectl.c new file mode 100644 index 0000000000..ae011a7433 --- /dev/null +++ b/src/grp-timedate/timedatectl/timedatectl.c @@ -0,0 +1,507 @@ +/*** + This file is part of systemd. + + Copyright 2012 Lennart Poettering + Copyright 2013 Kay Sievers + + 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. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <getopt.h> +#include <locale.h> +#include <stdbool.h> +#include <stdlib.h> + +#include <systemd/sd-bus.h> + +#include "sd-bus/bus-error.h" +#include "sd-bus/bus-util.h" +#include "systemd-basic/parse-util.h" +#include "systemd-basic/strv.h" +#include "systemd-basic/terminal-util.h" +#include "systemd-basic/util.h" +#include "systemd-shared/pager.h" +#include "systemd-shared/spawn-polkit-agent.h" + +static bool arg_no_pager = false; +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 void polkit_agent_open_if_enabled(void) { + + /* Open the polkit agent as a child process if necessary */ + if (!arg_ask_password) + return; + + if (arg_transport != BUS_TRANSPORT_LOCAL) + return; + + polkit_agent_open(); +} + +typedef struct StatusInfo { + usec_t time; + char *timezone; + + usec_t rtc_time; + int rtc_local; + + int ntp_enabled; + int ntp_capable; + int ntp_synced; +} StatusInfo; + +static void status_info_clear(StatusInfo *info) { + if (info) { + free(info->timezone); + zero(*info); + } +} + +static void print_status_info(const StatusInfo *i) { + char a[FORMAT_TIMESTAMP_MAX]; + struct tm tm; + time_t sec; + bool have_time = false; + const char *old_tz = NULL, *tz; + 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) { + xstrftime(a, "%a %Y-%m-%d %H:%M:%S %Z", localtime_r(&sec, &tm)); + printf(" Local time: %.*s\n", (int) sizeof(a), a); + + xstrftime(a, "%a %Y-%m-%d %H:%M:%S UTC", gmtime_r(&sec, &tm)); + printf(" Universal time: %.*s\n", (int) sizeof(a), 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); + xstrftime(a, "%a %Y-%m-%d %H:%M:%S", gmtime_r(&rtc_sec, &tm)); + printf(" RTC time: %.*s\n", (int) sizeof(a), a); + } else + printf(" RTC time: %s\n", "n/a"); + + if (have_time) + xstrftime(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" + " Network time on: %s\n" + "NTP synchronized: %s\n" + " RTC in local TZ: %s\n", + strna(i->timezone), (int) sizeof(a), have_time ? a : "n/a", + i->ntp_capable ? yes_no(i->ntp_enabled) : "n/a", + yes_no(i->ntp_synced), + 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 can not 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(sd_bus *bus, char **args, unsigned n) { + _cleanup_(status_info_clear) 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_enabled) }, + { "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) }, + {} + }; + int r; + + assert(bus); + + r = bus_map_all_properties(bus, + "org.freedesktop.timedate1", + "/org/freedesktop/timedate1", + map, + &info); + if (r < 0) + return log_error_errno(r, "Failed to query server: %m"); + + print_status_info(&info); + + return r; +} + +static int set_time(sd_bus *bus, char **args, unsigned n) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + bool relative = false, interactive = arg_ask_password; + usec_t t; + int r; + + assert(args); + assert(n == 2); + + polkit_agent_open_if_enabled(); + + r = parse_timestamp(args[1], &t); + if (r < 0) { + log_error("Failed to parse time specification: %s", args[1]); + return r; + } + + 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) + log_error("Failed to set time: %s", bus_error_message(&error, -r)); + + return r; +} + +static int set_timezone(sd_bus *bus, char **args, unsigned n) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + int r; + + assert(args); + assert(n == 2); + + polkit_agent_open_if_enabled(); + + r = sd_bus_call_method(bus, + "org.freedesktop.timedate1", + "/org/freedesktop/timedate1", + "org.freedesktop.timedate1", + "SetTimezone", + &error, + NULL, + "sb", args[1], arg_ask_password); + if (r < 0) + log_error("Failed to set time zone: %s", bus_error_message(&error, -r)); + + return r; +} + +static int set_local_rtc(sd_bus *bus, char **args, unsigned n) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + int r, b; + + assert(args); + assert(n == 2); + + polkit_agent_open_if_enabled(); + + b = parse_boolean(args[1]); + if (b < 0) { + log_error("Failed to parse local RTC setting: %s", args[1]); + return b; + } + + 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) + log_error("Failed to set local RTC: %s", bus_error_message(&error, -r)); + + return r; +} + +static int set_ntp(sd_bus *bus, char **args, unsigned n) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + int b, r; + + assert(args); + assert(n == 2); + + polkit_agent_open_if_enabled(); + + b = parse_boolean(args[1]); + if (b < 0) { + log_error("Failed to parse NTP setting: %s", args[1]); + return b; + } + + 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) + log_error("Failed to set ntp: %s", bus_error_message(&error, -r)); + + return r; +} + +static int list_timezones(sd_bus *bus, char **args, unsigned n) { + _cleanup_strv_free_ char **zones = NULL; + int r; + + assert(args); + assert(n == 1); + + r = get_timezones(&zones); + if (r < 0) + return log_error_errno(r, "Failed to read list of time zones: %m"); + + pager_open(arg_no_pager, false); + strv_print(zones); + + return 0; +} + +static void help(void) { + 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\n" + "Commands:\n" + " status Show current time settings\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", + program_invocation_short_name); +} + +static int parse_argv(int argc, char *argv[]) { + + enum { + ARG_VERSION = 0x100, + ARG_NO_PAGER, + ARG_ADJUST_SYSTEM_CLOCK, + ARG_NO_ASK_PASSWORD + }; + + 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 }, + {} + }; + + int c; + + assert(argc >= 0); + assert(argv); + + while ((c = getopt_long(argc, argv, "hH:M:", options, NULL)) >= 0) + + switch (c) { + + case 'h': + help(); + return 0; + + 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_no_pager = 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 struct { + const char* verb; + const enum { + MORE, + LESS, + EQUAL + } argc_cmp; + const int argc; + int (* const dispatch)(sd_bus *bus, char **args, unsigned n); + } verbs[] = { + { "status", LESS, 1, show_status }, + { "set-time", EQUAL, 2, set_time }, + { "set-timezone", EQUAL, 2, set_timezone }, + { "list-timezones", EQUAL, 1, list_timezones }, + { "set-local-rtc", EQUAL, 2, set_local_rtc }, + { "set-ntp", EQUAL, 2, set_ntp, }, + }; + + int left; + unsigned i; + + assert(argc >= 0); + assert(argv); + + left = argc - optind; + + if (left <= 0) + /* Special rule: no arguments means "status" */ + i = 0; + else { + if (streq(argv[optind], "help")) { + help(); + return 0; + } + + for (i = 0; i < ELEMENTSOF(verbs); i++) + if (streq(argv[optind], verbs[i].verb)) + break; + + if (i >= ELEMENTSOF(verbs)) { + log_error("Unknown operation %s", argv[optind]); + return -EINVAL; + } + } + + switch (verbs[i].argc_cmp) { + + case EQUAL: + if (left != verbs[i].argc) { + log_error("Invalid number of arguments."); + return -EINVAL; + } + + break; + + case MORE: + if (left < verbs[i].argc) { + log_error("Too few arguments."); + return -EINVAL; + } + + break; + + case LESS: + if (left > verbs[i].argc) { + log_error("Too many arguments."); + return -EINVAL; + } + + break; + + default: + assert_not_reached("Unknown comparison operator."); + } + + return verbs[i].dispatch(bus, argv + optind, left); +} + +int main(int argc, char *argv[]) { + sd_bus *bus = NULL; + int r; + + setlocale(LC_ALL, ""); + log_parse_environment(); + log_open(); + + r = parse_argv(argc, argv); + if (r <= 0) + goto finish; + + r = bus_connect_transport(arg_transport, arg_host, false, &bus); + if (r < 0) { + log_error_errno(r, "Failed to create bus connection: %m"); + goto finish; + } + + r = timedatectl_main(bus, argc, argv); + +finish: + sd_bus_flush_close_unref(bus); + pager_close(); + + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; +} diff --git a/src/grp-timedate/timedatectl/timedatectl.completion.bash b/src/grp-timedate/timedatectl/timedatectl.completion.bash new file mode 100644 index 0000000000..a57fbd2546 --- /dev/null +++ b/src/grp-timedate/timedatectl/timedatectl.completion.bash @@ -0,0 +1,76 @@ +# timedatectl(1) completion -*- shell-script -*- +# +# This file is part of systemd. +# +# Copyright 2010 Ran Benita +# +# 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. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. + +__contains_word () { + local w word=$1; shift + for w in "$@"; do + [[ $w = "$word" ]] && return + done +} + +_timedatectl() { + local i verb comps + local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]} + local OPTS='-h --help --version --adjust-system-clock --no-pager + --no-ask-password -H --host --machine' + + if __contains_word "$prev" $OPTS; then + case $prev in + --host|-H) + comps='' + ;; + esac + COMPREPLY=( $(compgen -W '$comps' -- "$cur") ) + return 0 + fi + + if [[ $cur = -* ]]; then + COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") ) + return 0 + fi + + local -A VERBS=( + [BOOLEAN]='set-local-rtc set-ntp' + [STANDALONE]='status set-time list-timezones' + [TIMEZONES]='set-timezone' + [TIME]='set-time' + ) + + for ((i=0; i < COMP_CWORD; i++)); do + if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]}; then + verb=${COMP_WORDS[i]} + break + fi + done + + if [[ -z $verb ]]; then + comps=${VERBS[*]} + elif __contains_word "$verb" ${VERBS[BOOLEAN]}; then + comps='true false' + elif __contains_word "$verb" ${VERBS[TIMEZONES]}; then + comps=$(command timedatectl list-timezones) + elif __contains_word "$verb" ${VERBS[STANDALONE]} ${VERBS[TIME]}; then + comps='' + fi + + COMPREPLY=( $(compgen -W '$comps' -- "$cur") ) + return 0 +} + +complete -F _timedatectl timedatectl diff --git a/src/grp-timedate/timedatectl/timedatectl.completion.zsh b/src/grp-timedate/timedatectl/timedatectl.completion.zsh new file mode 100644 index 0000000000..dfdcfebb3c --- /dev/null +++ b/src/grp-timedate/timedatectl/timedatectl.completion.zsh @@ -0,0 +1,66 @@ +#compdef timedatectl + +_timedatectl_set-timezone(){ + local -a _timezones + _timezones=( ${(f)"$(_call_program timezones "${service}" list-timezones)"} ) + compadd "$_timezones[@]" +} + +_timedatectl_set-time(){ + _message "YYYY-MM-DD HH:MM:SS" +} + +_timedatectl_set-local-rtc(){ + local -a _options + _options=( + '0:Maintain RTC in universal time' + '1:Maintain RTC in local time' + ) + _describe options _options +} + +_timedatectl_set-ntp(){ + local -a _options + _options=( + '0:Disable NTP based network time configuration' + '1:Enable NTP based network time configuration' + ) + _describe options _options +} + +_timedatectl_command(){ + local -a _timedatectl_cmds + _timedatectl_cmds=( + 'status:Show current time settings' + 'set-time:Set system time' + 'set-timezone:Set system timezone' + 'list-timezones:Show known timezones' + 'set-local-rtc:Control whether RTC is in local time' + 'set-ntp:Control whether NTP is enabled' + ) + if (( CURRENT == 1 )); then + _describe -t commands 'timedatectl command' _timedatectl_cmds + else + local curcontext="$curcontext" + cmd="${${_timedatectl_cmds[(r)$words[1]:*]%%:*}}" + if (( $#cmd )); then + if (( $+functions[_timedatectl_$cmd] )); then + _timedatectl_$cmd + else + _message "no more options" + fi + else + _message "unknown timedatectl command: $words[1]" + fi + fi +} + +_arguments -s \ + {-h,--help}'[Show this help]' \ + '--version[Show package version]' \ + '--adjust-system-clock[Adjust system clock when changing local RTC mode]' \ + '--no-pager[Do not pipe output into a pager]' \ + '--no-ask-password[Do not prompt for password]' \ + {-H+,--host=}'[Operate on remote host]:userathost:_sd_hosts_or_user_at_host' \ + {-M+,--machine=}'[Operate on local container]:machines:_sd_machines' \ + '*::timedatectl commands:_timedatectl_command' diff --git a/src/grp-timedate/timedatectl/timedatectl.xml b/src/grp-timedate/timedatectl/timedatectl.xml new file mode 100644 index 0000000000..415e2c799a --- /dev/null +++ b/src/grp-timedate/timedatectl/timedatectl.xml @@ -0,0 +1,253 @@ +<?xml version='1.0'?> <!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" + "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> + +<!-- + This file is part of systemd. + + Copyright 2012 Lennart Poettering + + 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. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> + +<refentry id="timedatectl" conditional='ENABLE_TIMEDATED' + xmlns:xi="http://www.w3.org/2001/XInclude"> + + <refentryinfo> + <title>timedatectl</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>timedatectl</refentrytitle> + <manvolnum>1</manvolnum> + </refmeta> + + <refnamediv> + <refname>timedatectl</refname> + <refpurpose>Control the system time and date</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <cmdsynopsis> + <command>timedatectl <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="req">COMMAND</arg></command> + </cmdsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><command>timedatectl</command> may be used to query and + change the system clock and its settings.</para> + + <para>Use + <citerefentry><refentrytitle>systemd-firstboot</refentrytitle><manvolnum>1</manvolnum></citerefentry> + to initialize the system time zone for mounted (but not booted) + system images.</para> + </refsect1> + + <refsect1> + <title>Options</title> + + <para>The following options are understood:</para> + + <variablelist> + <varlistentry> + <term><option>--no-ask-password</option></term> + + <listitem><para>Do not query the user for authentication for + privileged operations.</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>--adjust-system-clock</option></term> + + <listitem><para>If <command>set-local-rtc</command> is invoked + and this option is passed, the system clock is synchronized + from the RTC again, taking the new setting into account. + Otherwise, the RTC is synchronized from the system + clock.</para></listitem> + </varlistentry> + + <xi:include href="user-system-options.xml" xpointer="host" /> + <xi:include href="user-system-options.xml" xpointer="machine" /> + + <xi:include href="standard-options.xml" xpointer="help" /> + <xi:include href="standard-options.xml" xpointer="version" /> + <xi:include href="standard-options.xml" xpointer="no-pager" /> + </variablelist> + + <para>The following commands are understood:</para> + + <variablelist> + <varlistentry> + <term><command>status</command></term> + + <listitem><para>Show current settings of the system clock and + RTC, including whether network time synchronization is + on. Note that whether network time synchronization is on + simply reflects whether the + <filename>systemd-timesyncd.service</filename> unit is + enabled. Even if this command shows the status as off, a + different service might still synchronize the clock with the + network.</para></listitem> + </varlistentry> + + <varlistentry> + <term><command>set-time [TIME]</command></term> + + <listitem><para>Set the system clock to the specified time. + This will also update the RTC time accordingly. The time may + be specified in the format "2012-10-30 + 18:17:16".</para></listitem> + </varlistentry> + + <varlistentry> + <term><command>set-timezone [TIMEZONE]</command></term> + + <listitem><para>Set the system time zone to the specified + value. Available timezones can be listed with + <command>list-timezones</command>. If the RTC is configured to + be in the local time, this will also update the RTC time. This + call will alter the <filename>/etc/localtime</filename> + symlink. See + <citerefentry><refentrytitle>localtime</refentrytitle><manvolnum>5</manvolnum></citerefentry> + for more information.</para></listitem> + </varlistentry> + + <varlistentry> + <term><command>list-timezones</command></term> + + <listitem><para>List available time zones, one per line. + Entries from the list can be set as the system timezone with + <command>set-timezone</command>.</para></listitem> + </varlistentry> + + <varlistentry> + <term><command>set-local-rtc [BOOL]</command></term> + + <listitem><para>Takes a boolean argument. If + <literal>0</literal>, the system is configured to maintain the + RTC in universal time. If <literal>1</literal>, it will + maintain the RTC in local time instead. Note that maintaining + the RTC in the local timezone is not fully supported and will + create various problems with time zone changes and daylight + saving adjustments. If at all possible, keep the RTC in UTC + mode. Note that invoking this will also synchronize the RTC + from the system clock, unless + <option>--adjust-system-clock</option> is passed (see above). + This command will change the 3rd line of + <filename>/etc/adjtime</filename>, as documented in + <citerefentry project='man-pages'><refentrytitle>hwclock</refentrytitle><manvolnum>8</manvolnum></citerefentry>. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><command>set-ntp [BOOL]</command></term> + + <listitem><para>Takes a boolean argument. Controls whether + network time synchronization is active and enabled (if + available). This enables and starts, or disables and stops the + <filename>systemd-timesyncd.service</filename> unit. It does + not affect the state of any other, unrelated network time + synchronization services that might be installed on the + system. This command is hence mostly equivalent to: + <command>systemctl enable --now + systemd-timesyncd.service</command> and <command>systemctl + disable --now systemd-timesyncd.service</command>, but is + protected by a different access policy.</para> + + <para>Note that even if time synchronization is turned off + with this command, another unrelated system service might + still synchronize the clock with the network. Also note that, + strictly speaking, + <filename>systemd-timesyncd.service</filename> does more than + just network time synchronization, as it ensures a monotonic + clock on systems without RTC even if no network is + available. See + <citerefentry><refentrytitle>systemd-timesyncd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry> + for details about this.</para></listitem> + </varlistentry> + + </variablelist> + + </refsect1> + + <refsect1> + <title>Exit status</title> + + <para>On success, 0 is returned, a non-zero failure + code otherwise.</para> + </refsect1> + + <xi:include href="less-variables.xml" /> + + <refsect1> + <title>Examples</title> + <para>Show current settings: + <programlisting>$ timedatectl + Local time: Di 2015-04-07 16:26:56 CEST + Universal time: Di 2015-04-07 14:26:56 UTC + RTC time: Di 2015-04-07 14:26:56 + Time zone: Europe/Berlin (CEST, +0200) + Network time on: yes +NTP synchronized: yes + RTC in local TZ: no</programlisting> + </para> + + <para>Enable network time synchronization: + <programlisting>$ timedatectl set-ntp true +==== AUTHENTICATING FOR org.freedesktop.timedate1.set-ntp === +Authentication is required to control whether network time synchronization shall be enabled. +Authenticating as: user +Password: ******** +==== AUTHENTICATION COMPLETE ===</programlisting> + + <programlisting>$ systemctl status systemd-timesyncd.service +● systemd-timesyncd.service - Network Time Synchronization + Loaded: loaded (/usr/lib/systemd/system/systemd-timesyncd.service; enabled) + Active: active (running) since Mo 2015-03-30 14:20:38 CEST; 5s ago + Docs: man:systemd-timesyncd.service(8) + Main PID: 595 (systemd-timesyn) + Status: "Using Time Server 216.239.38.15:123 (time4.google.com)." + CGroup: /system.slice/systemd-timesyncd.service + └─595 /usr/lib/systemd/systemd-timesyncd +...</programlisting> + </para> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>hwclock</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>date</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>localtime</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-timedated.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-timesyncd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-firstboot</refentrytitle><manvolnum>1</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> |