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systemd/src/systemctl/systemctl.c
31b2cd5 Jan 5, 2018
@poettering @keszybz @phomes @michich @lnykryn @zonque @kaysievers @jsynacek @intelfx @ronnychevalier @haraldh @fbuihuu @sourcejedi @SimonPe @msekletar @falconindy @teg @evverx @ssahani @walyong @shawnl @lucaswerkmeister @eworm-de @dvdhrm @crrodriguez @tixxdz
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/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
Copyright 2010 Lennart Poettering
Copyright 2013 Marc-Antoine Perennou
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 <errno.h>
#include <fcntl.h>
#include <getopt.h>
#include <linux/reboot.h>
#include <locale.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <sys/prctl.h>
#include <sys/reboot.h>
#include <sys/socket.h>
#include <unistd.h>
#include "sd-bus.h"
#include "sd-daemon.h"
#include "sd-login.h"
#include "alloc-util.h"
#include "bootspec.h"
#include "bus-common-errors.h"
#include "bus-error.h"
#include "bus-message.h"
#include "bus-unit-util.h"
#include "bus-util.h"
#include "cgroup-show.h"
#include "cgroup-util.h"
#include "copy.h"
#include "dropin.h"
#include "efivars.h"
#include "env-util.h"
#include "escape.h"
#include "exit-status.h"
#include "fd-util.h"
#include "fileio.h"
#include "format-util.h"
#include "fs-util.h"
#include "glob-util.h"
#include "hostname-util.h"
#include "hexdecoct.h"
#include "initreq.h"
#include "install.h"
#include "io-util.h"
#include "list.h"
#include "locale-util.h"
#include "log.h"
#include "logs-show.h"
#include "macro.h"
#include "mkdir.h"
#include "pager.h"
#include "parse-util.h"
#include "path-lookup.h"
#include "path-util.h"
#include "process-util.h"
#include "rlimit-util.h"
#include "set.h"
#include "sigbus.h"
#include "signal-util.h"
#include "socket-util.h"
#include "spawn-ask-password-agent.h"
#include "spawn-polkit-agent.h"
#include "special.h"
#include "stat-util.h"
#include "strv.h"
#include "terminal-util.h"
#include "unit-def.h"
#include "unit-name.h"
#include "user-util.h"
#include "util.h"
#include "utmp-wtmp.h"
#include "verbs.h"
#include "virt.h"
/* The init script exit status codes
0 program is running or service is OK
1 program is dead and /var/run pid file exists
2 program is dead and /var/lock lock file exists
3 program is not running
4 program or service status is unknown
5-99 reserved for future LSB use
100-149 reserved for distribution use
150-199 reserved for application use
200-254 reserved
*/
enum {
EXIT_PROGRAM_RUNNING_OR_SERVICE_OK = 0,
EXIT_PROGRAM_DEAD_AND_PID_EXISTS = 1,
EXIT_PROGRAM_DEAD_AND_LOCK_FILE_EXISTS = 2,
EXIT_PROGRAM_NOT_RUNNING = 3,
EXIT_PROGRAM_OR_SERVICES_STATUS_UNKNOWN = 4,
};
static char **arg_types = NULL;
static char **arg_states = NULL;
static char **arg_properties = NULL;
static bool arg_all = false;
static enum dependency {
DEPENDENCY_FORWARD,
DEPENDENCY_REVERSE,
DEPENDENCY_AFTER,
DEPENDENCY_BEFORE,
_DEPENDENCY_MAX
} arg_dependency = DEPENDENCY_FORWARD;
static const char *arg_job_mode = "replace";
static UnitFileScope arg_scope = UNIT_FILE_SYSTEM;
static bool arg_wait = false;
static bool arg_no_block = false;
static bool arg_no_legend = false;
static bool arg_no_pager = false;
static bool arg_no_wtmp = false;
static bool arg_no_sync = false;
static bool arg_no_wall = false;
static bool arg_no_reload = false;
static bool arg_value = false;
static bool arg_show_types = false;
static bool arg_ignore_inhibitors = false;
static bool arg_dry_run = false;
static bool arg_quiet = false;
static bool arg_full = false;
static bool arg_recursive = false;
static int arg_force = 0;
static bool arg_ask_password = false;
static bool arg_runtime = false;
static UnitFilePresetMode arg_preset_mode = UNIT_FILE_PRESET_FULL;
static char **arg_wall = NULL;
static const char *arg_kill_who = NULL;
static int arg_signal = SIGTERM;
static char *arg_root = NULL;
static usec_t arg_when = 0;
static char *arg_esp_path = NULL;
static char *argv_cmdline = NULL;
static enum action {
ACTION_SYSTEMCTL,
ACTION_HALT,
ACTION_POWEROFF,
ACTION_REBOOT,
ACTION_KEXEC,
ACTION_EXIT,
ACTION_SUSPEND,
ACTION_HIBERNATE,
ACTION_HYBRID_SLEEP,
ACTION_RUNLEVEL2,
ACTION_RUNLEVEL3,
ACTION_RUNLEVEL4,
ACTION_RUNLEVEL5,
ACTION_RESCUE,
ACTION_EMERGENCY,
ACTION_DEFAULT,
ACTION_RELOAD,
ACTION_REEXEC,
ACTION_RUNLEVEL,
ACTION_CANCEL_SHUTDOWN,
_ACTION_MAX,
_ACTION_INVALID = -1
} arg_action = ACTION_SYSTEMCTL;
static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
static const char *arg_host = NULL;
static unsigned arg_lines = 10;
static OutputMode arg_output = OUTPUT_SHORT;
static bool arg_plain = false;
static bool arg_firmware_setup = false;
static bool arg_now = false;
static bool arg_jobs_before = false;
static bool arg_jobs_after = false;
static int daemon_reload(int argc, char *argv[], void* userdata);
static int trivial_method(int argc, char *argv[], void *userdata);
static int halt_now(enum action a);
static int get_state_one_unit(sd_bus *bus, const char *name, UnitActiveState *active_state);
static bool original_stdout_is_tty;
typedef enum BusFocus {
BUS_FULL, /* The full bus indicated via --system or --user */
BUS_MANAGER, /* The manager itself, possibly directly, possibly via the bus */
_BUS_FOCUS_MAX
} BusFocus;
static sd_bus *busses[_BUS_FOCUS_MAX] = {};
static UnitFileFlags args_to_flags(void) {
return (arg_runtime ? UNIT_FILE_RUNTIME : 0) |
(arg_force ? UNIT_FILE_FORCE : 0);
}
static int acquire_bus(BusFocus focus, sd_bus **ret) {
int r;
assert(focus < _BUS_FOCUS_MAX);
assert(ret);
/* We only go directly to the manager, if we are using a local transport */
if (arg_transport != BUS_TRANSPORT_LOCAL)
focus = BUS_FULL;
if (getenv_bool("SYSTEMCTL_FORCE_BUS") > 0)
focus = BUS_FULL;
if (!busses[focus]) {
bool user;
user = arg_scope != UNIT_FILE_SYSTEM;
if (!user && sd_booted() <= 0) {
/* Print a friendly message when the local system is actually not running systemd as PID 1. */
log_error("System has not been booted with systemd as init system (PID 1). Can't operate.");
return -EHOSTDOWN;
}
if (focus == BUS_MANAGER)
r = bus_connect_transport_systemd(arg_transport, arg_host, user, &busses[focus]);
else
r = bus_connect_transport(arg_transport, arg_host, user, &busses[focus]);
if (r < 0)
return log_error_errno(r, "Failed to connect to bus: %m");
(void) sd_bus_set_allow_interactive_authorization(busses[focus], arg_ask_password);
}
*ret = busses[focus];
return 0;
}
static void release_busses(void) {
BusFocus w;
for (w = 0; w < _BUS_FOCUS_MAX; w++)
busses[w] = sd_bus_flush_close_unref(busses[w]);
}
static int map_string_no_copy(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
char *s;
const char **p = userdata;
int r;
r = sd_bus_message_read_basic(m, SD_BUS_TYPE_STRING, &s);
if (r < 0)
return r;
if (!isempty(s))
*p = s;
return 0;
}
static void ask_password_agent_open_if_enabled(void) {
/* Open the password agent as a child process if necessary */
if (arg_dry_run)
return;
if (!arg_ask_password)
return;
if (arg_scope != UNIT_FILE_SYSTEM)
return;
if (arg_transport != BUS_TRANSPORT_LOCAL)
return;
ask_password_agent_open();
}
static void polkit_agent_open_maybe(void) {
/* Open the polkit agent as a child process if necessary */
if (arg_scope != UNIT_FILE_SYSTEM)
return;
polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
}
static OutputFlags get_output_flags(void) {
return
arg_all * OUTPUT_SHOW_ALL |
(arg_full || !on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
colors_enabled() * OUTPUT_COLOR |
!arg_quiet * OUTPUT_WARN_CUTOFF;
}
static int translate_bus_error_to_exit_status(int r, const sd_bus_error *error) {
assert(error);
if (!sd_bus_error_is_set(error))
return r;
if (sd_bus_error_has_name(error, SD_BUS_ERROR_ACCESS_DENIED) ||
sd_bus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
sd_bus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
sd_bus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
return EXIT_NOPERMISSION;
if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
return EXIT_NOTINSTALLED;
if (sd_bus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
sd_bus_error_has_name(error, SD_BUS_ERROR_NOT_SUPPORTED))
return EXIT_NOTIMPLEMENTED;
if (sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
return EXIT_NOTCONFIGURED;
if (r != 0)
return r;
return EXIT_FAILURE;
}
static bool install_client_side(void) {
/* Decides when to execute enable/disable/... operations
* client-side rather than server-side. */
if (running_in_chroot_or_offline())
return true;
if (sd_booted() <= 0)
return true;
if (!isempty(arg_root))
return true;
if (arg_scope == UNIT_FILE_GLOBAL)
return true;
/* Unsupported environment variable, mostly for debugging purposes */
if (getenv_bool("SYSTEMCTL_INSTALL_CLIENT_SIDE") > 0)
return true;
return false;
}
static int compare_unit_info(const void *a, const void *b) {
const UnitInfo *u = a, *v = b;
const char *d1, *d2;
int r;
/* First, order by machine */
if (!u->machine && v->machine)
return -1;
if (u->machine && !v->machine)
return 1;
if (u->machine && v->machine) {
r = strcasecmp(u->machine, v->machine);
if (r != 0)
return r;
}
/* Second, order by unit type */
d1 = strrchr(u->id, '.');
d2 = strrchr(v->id, '.');
if (d1 && d2) {
r = strcasecmp(d1, d2);
if (r != 0)
return r;
}
/* Third, order by name */
return strcasecmp(u->id, v->id);
}
static const char* unit_type_suffix(const char *name) {
const char *dot;
dot = strrchr(name, '.');
if (!dot)
return "";
return dot + 1;
}
static bool output_show_unit(const UnitInfo *u, char **patterns) {
assert(u);
if (!strv_fnmatch_or_empty(patterns, u->id, FNM_NOESCAPE))
return false;
if (arg_types && !strv_find(arg_types, unit_type_suffix(u->id)))
return false;
if (arg_all)
return true;
/* Note that '--all' is not purely a state filter, but also a
* filter that hides units that "follow" other units (which is
* used for device units that appear under different names). */
if (!isempty(u->following))
return false;
if (!strv_isempty(arg_states))
return true;
/* By default show all units except the ones in inactive
* state and with no pending job */
if (u->job_id > 0)
return true;
if (streq(u->active_state, "inactive"))
return false;
return true;
}
static int output_units_list(const UnitInfo *unit_infos, unsigned c) {
unsigned circle_len = 0, id_len, max_id_len, load_len, active_len, sub_len, job_len, desc_len, max_desc_len;
const UnitInfo *u;
unsigned n_shown = 0;
int job_count = 0;
max_id_len = STRLEN("UNIT");
load_len = STRLEN("LOAD");
active_len = STRLEN("ACTIVE");
sub_len = STRLEN("SUB");
job_len = STRLEN("JOB");
max_desc_len = STRLEN("DESCRIPTION");
for (u = unit_infos; u < unit_infos + c; u++) {
max_id_len = MAX(max_id_len, strlen(u->id) + (u->machine ? strlen(u->machine)+1 : 0));
load_len = MAX(load_len, strlen(u->load_state));
active_len = MAX(active_len, strlen(u->active_state));
sub_len = MAX(sub_len, strlen(u->sub_state));
max_desc_len = MAX(max_desc_len, strlen(u->description));
if (u->job_id != 0) {
job_len = MAX(job_len, strlen(u->job_type));
job_count++;
}
if (!arg_no_legend &&
(streq(u->active_state, "failed") ||
STR_IN_SET(u->load_state, "error", "not-found", "masked")))
circle_len = 2;
}
if (!arg_full && original_stdout_is_tty) {
unsigned basic_len;
id_len = MIN(max_id_len, 25u); /* as much as it needs, but at most 25 for now */
basic_len = circle_len + 1 + id_len + 1 + load_len + 1 + active_len + 1 + sub_len + 1;
if (job_count)
basic_len += job_len + 1;
if (basic_len < (unsigned) columns()) {
unsigned extra_len, incr;
extra_len = columns() - basic_len;
/* Either UNIT already got 25, or is fully satisfied.
* Grant up to 25 to DESC now. */
incr = MIN(extra_len, 25u);
desc_len = incr;
extra_len -= incr;
/* Of the remainder give as much as the ID needs to the ID, and give the rest to the
* description but not more than it needs. */
if (extra_len > 0) {
incr = MIN(max_id_len - id_len, extra_len);
id_len += incr;
desc_len += MIN(extra_len - incr, max_desc_len - desc_len);
}
} else
desc_len = 0;
} else {
id_len = max_id_len;
desc_len = max_desc_len;
}
for (u = unit_infos; u < unit_infos + c; u++) {
_cleanup_free_ char *e = NULL, *j = NULL;
const char *on_underline = "", *off_underline = "";
const char *on_loaded = "", *off_loaded = "";
const char *on_active = "", *off_active = "";
const char *on_circle = "", *off_circle = "";
const char *id;
bool circle = false, underline = false;
if (!n_shown && !arg_no_legend) {
if (circle_len > 0)
fputs(" ", stdout);
printf("%s%-*s %-*s %-*s %-*s ",
ansi_underline(),
id_len, "UNIT",
load_len, "LOAD",
active_len, "ACTIVE",
sub_len, "SUB");
if (job_count)
printf("%-*s ", job_len, "JOB");
printf("%-*.*s%s\n",
desc_len,
!arg_full && arg_no_pager ? (int) desc_len : -1,
"DESCRIPTION",
ansi_normal());
}
n_shown++;
if (u + 1 < unit_infos + c &&
!streq(unit_type_suffix(u->id), unit_type_suffix((u + 1)->id))) {
on_underline = ansi_underline();
off_underline = ansi_normal();
underline = true;
}
if (STR_IN_SET(u->load_state, "error", "not-found", "masked") && !arg_plain) {
on_circle = ansi_highlight_yellow();
off_circle = ansi_normal();
circle = true;
on_loaded = underline ? ansi_highlight_red_underline() : ansi_highlight_red();
off_loaded = underline ? on_underline : ansi_normal();
} else if (streq(u->active_state, "failed") && !arg_plain) {
on_circle = ansi_highlight_red();
off_circle = ansi_normal();
circle = true;
on_active = underline ? ansi_highlight_red_underline() : ansi_highlight_red();
off_active = underline ? on_underline : ansi_normal();
}
if (u->machine) {
j = strjoin(u->machine, ":", u->id);
if (!j)
return log_oom();
id = j;
} else
id = u->id;
if (arg_full) {
e = ellipsize(id, id_len, 33);
if (!e)
return log_oom();
id = e;
}
if (circle_len > 0)
printf("%s%s%s ", on_circle, circle ? special_glyph(BLACK_CIRCLE) : " ", off_circle);
printf("%s%s%-*s%s %s%-*s%s %s%-*s %-*s%s %-*s",
on_underline,
on_active, id_len, id, off_active,
on_loaded, load_len, u->load_state, off_loaded,
on_active, active_len, u->active_state,
sub_len, u->sub_state, off_active,
job_count ? job_len + 1 : 0, u->job_id ? u->job_type : "");
printf("%-*.*s%s\n",
desc_len,
!arg_full && arg_no_pager ? (int) desc_len : -1,
u->description,
off_underline);
}
if (!arg_no_legend) {
const char *on, *off;
if (n_shown) {
puts("\n"
"LOAD = Reflects whether the unit definition was properly loaded.\n"
"ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
"SUB = The low-level unit activation state, values depend on unit type.");
puts(job_count ? "JOB = Pending job for the unit.\n" : "");
on = ansi_highlight();
off = ansi_normal();
} else {
on = ansi_highlight_red();
off = ansi_normal();
}
if (arg_all)
printf("%s%u loaded units listed.%s\n"
"To show all installed unit files use 'systemctl list-unit-files'.\n",
on, n_shown, off);
else
printf("%s%u loaded units listed.%s Pass --all to see loaded but inactive units, too.\n"
"To show all installed unit files use 'systemctl list-unit-files'.\n",
on, n_shown, off);
}
return 0;
}
static int get_unit_list(
sd_bus *bus,
const char *machine,
char **patterns,
UnitInfo **unit_infos,
int c,
sd_bus_message **_reply) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
size_t size = c;
int r;
UnitInfo u;
bool fallback = false;
assert(bus);
assert(unit_infos);
assert(_reply);
r = sd_bus_message_new_method_call(
bus,
&m,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"ListUnitsByPatterns");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append_strv(m, arg_states);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append_strv(m, patterns);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, 0, &error, &reply);
if (r < 0 && (sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_METHOD) ||
sd_bus_error_has_name(&error, SD_BUS_ERROR_ACCESS_DENIED))) {
/* Fallback to legacy ListUnitsFiltered method */
fallback = true;
log_debug_errno(r, "Failed to list units: %s Falling back to ListUnitsFiltered method.", bus_error_message(&error, r));
m = sd_bus_message_unref(m);
sd_bus_error_free(&error);
r = sd_bus_message_new_method_call(
bus,
&m,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"ListUnitsFiltered");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append_strv(m, arg_states);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, 0, &error, &reply);
}
if (r < 0)
return log_error_errno(r, "Failed to list units: %s", bus_error_message(&error, r));
r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssssouso)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = bus_parse_unit_info(reply, &u)) > 0) {
u.machine = machine;
if (!output_show_unit(&u, fallback ? patterns : NULL))
continue;
if (!GREEDY_REALLOC(*unit_infos, size, c+1))
return log_oom();
(*unit_infos)[c++] = u;
}
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
*_reply = reply;
reply = NULL;
return c;
}
static void message_set_freep(Set **set) {
set_free_with_destructor(*set, sd_bus_message_unref);
}
static int get_unit_list_recursive(
sd_bus *bus,
char **patterns,
UnitInfo **_unit_infos,
Set **_replies,
char ***_machines) {
_cleanup_free_ UnitInfo *unit_infos = NULL;
_cleanup_(message_set_freep) Set *replies;
sd_bus_message *reply;
int c, r;
assert(bus);
assert(_replies);
assert(_unit_infos);
assert(_machines);
replies = set_new(NULL);
if (!replies)
return log_oom();
c = get_unit_list(bus, NULL, patterns, &unit_infos, 0, &reply);
if (c < 0)
return c;
r = set_put(replies, reply);
if (r < 0) {
sd_bus_message_unref(reply);
return log_oom();
}
if (arg_recursive) {
_cleanup_strv_free_ char **machines = NULL;
char **i;
r = sd_get_machine_names(&machines);
if (r < 0)
return log_error_errno(r, "Failed to get machine names: %m");
STRV_FOREACH(i, machines) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *container = NULL;
int k;
r = sd_bus_open_system_machine(&container, *i);
if (r < 0) {
log_warning_errno(r, "Failed to connect to container %s, ignoring: %m", *i);
continue;
}
k = get_unit_list(container, *i, patterns, &unit_infos, c, &reply);
if (k < 0)
return k;
c = k;
r = set_put(replies, reply);
if (r < 0) {
sd_bus_message_unref(reply);
return log_oom();
}
}
*_machines = machines;
machines = NULL;
} else
*_machines = NULL;
*_unit_infos = unit_infos;
unit_infos = NULL;
*_replies = replies;
replies = NULL;
return c;
}
static int list_units(int argc, char *argv[], void *userdata) {
_cleanup_free_ UnitInfo *unit_infos = NULL;
_cleanup_(message_set_freep) Set *replies = NULL;
_cleanup_strv_free_ char **machines = NULL;
sd_bus *bus;
int r;
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
pager_open(arg_no_pager, false);
r = get_unit_list_recursive(bus, strv_skip(argv, 1), &unit_infos, &replies, &machines);
if (r < 0)
return r;
qsort_safe(unit_infos, r, sizeof(UnitInfo), compare_unit_info);
return output_units_list(unit_infos, r);
}
static int get_triggered_units(
sd_bus *bus,
const char* path,
char*** ret) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
int r;
assert(bus);
assert(path);
assert(ret);
r = sd_bus_get_property_strv(
bus,
"org.freedesktop.systemd1",
path,
"org.freedesktop.systemd1.Unit",
"Triggers",
&error,
ret);
if (r < 0)
return log_error_errno(r, "Failed to determine triggers: %s", bus_error_message(&error, r));
return 0;
}
static int get_listening(
sd_bus *bus,
const char* unit_path,
char*** listening) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
const char *type, *path;
int r, n = 0;
r = sd_bus_get_property(
bus,
"org.freedesktop.systemd1",
unit_path,
"org.freedesktop.systemd1.Socket",
"Listen",
&error,
&reply,
"a(ss)");
if (r < 0)
return log_error_errno(r, "Failed to get list of listening sockets: %s", bus_error_message(&error, r));
r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ss)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_read(reply, "(ss)", &type, &path)) > 0) {
r = strv_extend(listening, type);
if (r < 0)
return log_oom();
r = strv_extend(listening, path);
if (r < 0)
return log_oom();
n++;
}
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
return n;
}
struct socket_info {
const char *machine;
const char* id;
char* type;
char* path;
/* Note: triggered is a list here, although it almost certainly
* will always be one unit. Nevertheless, dbus API allows for multiple
* values, so let's follow that. */
char** triggered;
/* The strv above is shared. free is set only in the first one. */
bool own_triggered;
};
static int socket_info_compare(const struct socket_info *a, const struct socket_info *b) {
int o;
assert(a);
assert(b);
if (!a->machine && b->machine)
return -1;
if (a->machine && !b->machine)
return 1;
if (a->machine && b->machine) {
o = strcasecmp(a->machine, b->machine);
if (o != 0)
return o;
}
o = strcmp(a->path, b->path);
if (o == 0)
o = strcmp(a->type, b->type);
return o;
}
static int output_sockets_list(struct socket_info *socket_infos, unsigned cs) {
struct socket_info *s;
unsigned pathlen = STRLEN("LISTEN"),
typelen = STRLEN("TYPE") * arg_show_types,
socklen = STRLEN("UNIT"),
servlen = STRLEN("ACTIVATES");
const char *on, *off;
for (s = socket_infos; s < socket_infos + cs; s++) {
unsigned tmp = 0;
char **a;
socklen = MAX(socklen, strlen(s->id));
if (arg_show_types)
typelen = MAX(typelen, strlen(s->type));
pathlen = MAX(pathlen, strlen(s->path) + (s->machine ? strlen(s->machine)+1 : 0));
STRV_FOREACH(a, s->triggered)
tmp += strlen(*a) + 2*(a != s->triggered);
servlen = MAX(servlen, tmp);
}
if (cs) {
if (!arg_no_legend)
printf("%-*s %-*.*s%-*s %s\n",
pathlen, "LISTEN",
typelen + arg_show_types, typelen + arg_show_types, "TYPE ",
socklen, "UNIT",
"ACTIVATES");
for (s = socket_infos; s < socket_infos + cs; s++) {
_cleanup_free_ char *j = NULL;
const char *path;
char **a;
if (s->machine) {
j = strjoin(s->machine, ":", s->path);
if (!j)
return log_oom();
path = j;
} else
path = s->path;
if (arg_show_types)
printf("%-*s %-*s %-*s",
pathlen, path, typelen, s->type, socklen, s->id);
else
printf("%-*s %-*s",
pathlen, path, socklen, s->id);
STRV_FOREACH(a, s->triggered)
printf("%s %s",
a == s->triggered ? "" : ",", *a);
printf("\n");
}
on = ansi_highlight();
off = ansi_normal();
if (!arg_no_legend)
printf("\n");
} else {
on = ansi_highlight_red();
off = ansi_normal();
}
if (!arg_no_legend) {
printf("%s%u sockets listed.%s\n", on, cs, off);
if (!arg_all)
printf("Pass --all to see loaded but inactive sockets, too.\n");
}
return 0;
}
static int list_sockets(int argc, char *argv[], void *userdata) {
_cleanup_(message_set_freep) Set *replies = NULL;
_cleanup_strv_free_ char **machines = NULL;
_cleanup_free_ UnitInfo *unit_infos = NULL;
_cleanup_free_ struct socket_info *socket_infos = NULL;
const UnitInfo *u;
struct socket_info *s;
unsigned cs = 0;
size_t size = 0;
int r = 0, n;
sd_bus *bus;
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
pager_open(arg_no_pager, false);
n = get_unit_list_recursive(bus, strv_skip(argv, 1), &unit_infos, &replies, &machines);
if (n < 0)
return n;
for (u = unit_infos; u < unit_infos + n; u++) {
_cleanup_strv_free_ char **listening = NULL, **triggered = NULL;
int i, c;
if (!endswith(u->id, ".socket"))
continue;
r = get_triggered_units(bus, u->unit_path, &triggered);
if (r < 0)
goto cleanup;
c = get_listening(bus, u->unit_path, &listening);
if (c < 0) {
r = c;
goto cleanup;
}
if (!GREEDY_REALLOC(socket_infos, size, cs + c)) {
r = log_oom();
goto cleanup;
}
for (i = 0; i < c; i++)
socket_infos[cs + i] = (struct socket_info) {
.machine = u->machine,
.id = u->id,
.type = listening[i*2],
.path = listening[i*2 + 1],
.triggered = triggered,
.own_triggered = i==0,
};
/* from this point on we will cleanup those socket_infos */
cs += c;
free(listening);
listening = triggered = NULL; /* avoid cleanup */
}
qsort_safe(socket_infos, cs, sizeof(struct socket_info),
(__compar_fn_t) socket_info_compare);
output_sockets_list(socket_infos, cs);
cleanup:
assert(cs == 0 || socket_infos);
for (s = socket_infos; s < socket_infos + cs; s++) {
free(s->type);
free(s->path);
if (s->own_triggered)
strv_free(s->triggered);
}
return r;
}
static int get_next_elapse(
sd_bus *bus,
const char *path,
dual_timestamp *next) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
dual_timestamp t;
int r;
assert(bus);
assert(path);
assert(next);
r = sd_bus_get_property_trivial(
bus,
"org.freedesktop.systemd1",
path,
"org.freedesktop.systemd1.Timer",
"NextElapseUSecMonotonic",
&error,
't',
&t.monotonic);
if (r < 0)
return log_error_errno(r, "Failed to get next elapse time: %s", bus_error_message(&error, r));
r = sd_bus_get_property_trivial(
bus,
"org.freedesktop.systemd1",
path,
"org.freedesktop.systemd1.Timer",
"NextElapseUSecRealtime",
&error,
't',
&t.realtime);
if (r < 0)
return log_error_errno(r, "Failed to get next elapse time: %s", bus_error_message(&error, r));
*next = t;
return 0;
}
static int get_last_trigger(
sd_bus *bus,
const char *path,
usec_t *last) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
int r;
assert(bus);
assert(path);
assert(last);
r = sd_bus_get_property_trivial(
bus,
"org.freedesktop.systemd1",
path,
"org.freedesktop.systemd1.Timer",
"LastTriggerUSec",
&error,
't',
last);
if (r < 0)
return log_error_errno(r, "Failed to get last trigger time: %s", bus_error_message(&error, r));
return 0;
}
struct timer_info {
const char* machine;
const char* id;
usec_t next_elapse;
usec_t last_trigger;
char** triggered;
};
static int timer_info_compare(const struct timer_info *a, const struct timer_info *b) {
int o;
assert(a);
assert(b);
if (!a->machine && b->machine)
return -1;
if (a->machine && !b->machine)
return 1;
if (a->machine && b->machine) {
o = strcasecmp(a->machine, b->machine);
if (o != 0)
return o;
}
if (a->next_elapse < b->next_elapse)
return -1;
if (a->next_elapse > b->next_elapse)
return 1;
return strcmp(a->id, b->id);
}
static int output_timers_list(struct timer_info *timer_infos, unsigned n) {
struct timer_info *t;
unsigned
nextlen = STRLEN("NEXT"),
leftlen = STRLEN("LEFT"),
lastlen = STRLEN("LAST"),
passedlen = STRLEN("PASSED"),
unitlen = STRLEN("UNIT"),
activatelen = STRLEN("ACTIVATES");
const char *on, *off;
assert(timer_infos || n == 0);
for (t = timer_infos; t < timer_infos + n; t++) {
unsigned ul = 0;
char **a;
if (t->next_elapse > 0) {
char tstamp[FORMAT_TIMESTAMP_MAX] = "", trel[FORMAT_TIMESTAMP_RELATIVE_MAX] = "";
format_timestamp(tstamp, sizeof(tstamp), t->next_elapse);
nextlen = MAX(nextlen, strlen(tstamp) + 1);
format_timestamp_relative(trel, sizeof(trel), t->next_elapse);
leftlen = MAX(leftlen, strlen(trel));
}
if (t->last_trigger > 0) {
char tstamp[FORMAT_TIMESTAMP_MAX] = "", trel[FORMAT_TIMESTAMP_RELATIVE_MAX] = "";
format_timestamp(tstamp, sizeof(tstamp), t->last_trigger);
lastlen = MAX(lastlen, strlen(tstamp) + 1);
format_timestamp_relative(trel, sizeof(trel), t->last_trigger);
passedlen = MAX(passedlen, strlen(trel));
}
unitlen = MAX(unitlen, strlen(t->id) + (t->machine ? strlen(t->machine)+1 : 0));
STRV_FOREACH(a, t->triggered)
ul += strlen(*a) + 2*(a != t->triggered);
activatelen = MAX(activatelen, ul);
}
if (n > 0) {
if (!arg_no_legend)
printf("%-*s %-*s %-*s %-*s %-*s %s\n",
nextlen, "NEXT",
leftlen, "LEFT",
lastlen, "LAST",
passedlen, "PASSED",
unitlen, "UNIT",
"ACTIVATES");
for (t = timer_infos; t < timer_infos + n; t++) {
_cleanup_free_ char *j = NULL;
const char *unit;
char tstamp1[FORMAT_TIMESTAMP_MAX] = "n/a", trel1[FORMAT_TIMESTAMP_RELATIVE_MAX] = "n/a";
char tstamp2[FORMAT_TIMESTAMP_MAX] = "n/a", trel2[FORMAT_TIMESTAMP_RELATIVE_MAX] = "n/a";
char **a;
format_timestamp(tstamp1, sizeof(tstamp1), t->next_elapse);
format_timestamp_relative(trel1, sizeof(trel1), t->next_elapse);
format_timestamp(tstamp2, sizeof(tstamp2), t->last_trigger);
format_timestamp_relative(trel2, sizeof(trel2), t->last_trigger);
if (t->machine) {
j = strjoin(t->machine, ":", t->id);
if (!j)
return log_oom();
unit = j;
} else
unit = t->id;
printf("%-*s %-*s %-*s %-*s %-*s",
nextlen, tstamp1, leftlen, trel1, lastlen, tstamp2, passedlen, trel2, unitlen, unit);
STRV_FOREACH(a, t->triggered)
printf("%s %s",
a == t->triggered ? "" : ",", *a);
printf("\n");
}
on = ansi_highlight();
off = ansi_normal();
if (!arg_no_legend)
printf("\n");
} else {
on = ansi_highlight_red();
off = ansi_normal();
}
if (!arg_no_legend) {
printf("%s%u timers listed.%s\n", on, n, off);
if (!arg_all)
printf("Pass --all to see loaded but inactive timers, too.\n");
}
return 0;
}
static usec_t calc_next_elapse(dual_timestamp *nw, dual_timestamp *next) {
usec_t next_elapse;
assert(nw);
assert(next);
if (next->monotonic != USEC_INFINITY && next->monotonic > 0) {
usec_t converted;
if (next->monotonic > nw->monotonic)
converted = nw->realtime + (next->monotonic - nw->monotonic);
else
converted = nw->realtime - (nw->monotonic - next->monotonic);
if (next->realtime != USEC_INFINITY && next->realtime > 0)
next_elapse = MIN(converted, next->realtime);
else
next_elapse = converted;
} else
next_elapse = next->realtime;
return next_elapse;
}
static int list_timers(int argc, char *argv[], void *userdata) {
_cleanup_(message_set_freep) Set *replies = NULL;
_cleanup_strv_free_ char **machines = NULL;
_cleanup_free_ struct timer_info *timer_infos = NULL;
_cleanup_free_ UnitInfo *unit_infos = NULL;
struct timer_info *t;
const UnitInfo *u;
size_t size = 0;
int n, c = 0;
dual_timestamp nw;
sd_bus *bus;
int r = 0;
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
pager_open(arg_no_pager, false);
n = get_unit_list_recursive(bus, strv_skip(argv, 1), &unit_infos, &replies, &machines);
if (n < 0)
return n;
dual_timestamp_get(&nw);
for (u = unit_infos; u < unit_infos + n; u++) {
_cleanup_strv_free_ char **triggered = NULL;
dual_timestamp next = DUAL_TIMESTAMP_NULL;
usec_t m, last = 0;
if (!endswith(u->id, ".timer"))
continue;
r = get_triggered_units(bus, u->unit_path, &triggered);
if (r < 0)
goto cleanup;
r = get_next_elapse(bus, u->unit_path, &next);
if (r < 0)
goto cleanup;
get_last_trigger(bus, u->unit_path, &last);
if (!GREEDY_REALLOC(timer_infos, size, c+1)) {
r = log_oom();
goto cleanup;
}
m = calc_next_elapse(&nw, &next);
timer_infos[c++] = (struct timer_info) {
.machine = u->machine,
.id = u->id,
.next_elapse = m,
.last_trigger = last,
.triggered = triggered,
};
triggered = NULL; /* avoid cleanup */
}
qsort_safe(timer_infos, c, sizeof(struct timer_info),
(__compar_fn_t) timer_info_compare);
output_timers_list(timer_infos, c);
cleanup:
for (t = timer_infos; t < timer_infos + c; t++)
strv_free(t->triggered);
return r;
}
static int compare_unit_file_list(const void *a, const void *b) {
const char *d1, *d2;
const UnitFileList *u = a, *v = b;
d1 = strrchr(u->path, '.');
d2 = strrchr(v->path, '.');
if (d1 && d2) {
int r;
r = strcasecmp(d1, d2);
if (r != 0)
return r;
}
return strcasecmp(basename(u->path), basename(v->path));
}
static bool output_show_unit_file(const UnitFileList *u, char **states, char **patterns) {
assert(u);
if (!strv_fnmatch_or_empty(patterns, basename(u->path), FNM_NOESCAPE))
return false;
if (!strv_isempty(arg_types)) {
const char *dot;
dot = strrchr(u->path, '.');
if (!dot)
return false;
if (!strv_find(arg_types, dot+1))
return false;
}
if (!strv_isempty(states) &&
!strv_find(states, unit_file_state_to_string(u->state)))
return false;
return true;
}
static void output_unit_file_list(const UnitFileList *units, unsigned c) {
unsigned max_id_len, id_cols, state_cols;
const UnitFileList *u;
max_id_len = STRLEN("UNIT FILE");
state_cols = STRLEN("STATE");
for (u = units; u < units + c; u++) {
max_id_len = MAX(max_id_len, strlen(basename(u->path)));
state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state)));
}
if (!arg_full) {
unsigned basic_cols;
id_cols = MIN(max_id_len, 25u);
basic_cols = 1 + id_cols + state_cols;
if (basic_cols < (unsigned) columns())
id_cols += MIN(columns() - basic_cols, max_id_len - id_cols);
} else
id_cols = max_id_len;
if (!arg_no_legend && c > 0)
printf("%s%-*s %-*s%s\n",
ansi_underline(),
id_cols, "UNIT FILE",
state_cols, "STATE",
ansi_normal());
for (u = units; u < units + c; u++) {
const char *on_underline = NULL, *on_color = NULL, *off = NULL, *id;
_cleanup_free_ char *e = NULL;
bool underline;
underline = u + 1 < units + c &&
!streq(unit_type_suffix(u->path), unit_type_suffix((u + 1)->path));
if (underline)
on_underline = ansi_underline();
if (IN_SET(u->state,
UNIT_FILE_MASKED,
UNIT_FILE_MASKED_RUNTIME,
UNIT_FILE_DISABLED,
UNIT_FILE_BAD))
on_color = underline ? ansi_highlight_red_underline() : ansi_highlight_red();
else if (u->state == UNIT_FILE_ENABLED)
on_color = underline ? ansi_highlight_green_underline() : ansi_highlight_green();
if (on_underline || on_color)
off = ansi_normal();
id = basename(u->path);
e = arg_full ? NULL : ellipsize(id, id_cols, 33);
printf("%s%-*s %s%-*s%s\n",
strempty(on_underline),
id_cols, e ? e : id,
strempty(on_color), state_cols, unit_file_state_to_string(u->state), strempty(off));
}
if (!arg_no_legend)
printf("\n%u unit files listed.\n", c);
}
static int list_unit_files(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_free_ UnitFileList *units = NULL;
UnitFileList *unit;
size_t size = 0;
unsigned c = 0;
const char *state;
char *path;
int r;
bool fallback = false;
if (install_client_side()) {
Hashmap *h;
UnitFileList *u;
Iterator i;
unsigned n_units;
h = hashmap_new(&string_hash_ops);
if (!h)
return log_oom();
r = unit_file_get_list(arg_scope, arg_root, h, arg_states, strv_skip(argv, 1));
if (r < 0) {
unit_file_list_free(h);
return log_error_errno(r, "Failed to get unit file list: %m");
}
n_units = hashmap_size(h);
units = new(UnitFileList, n_units ?: 1); /* avoid malloc(0) */
if (!units) {
unit_file_list_free(h);
return log_oom();
}
HASHMAP_FOREACH(u, h, i) {
if (!output_show_unit_file(u, NULL, NULL))
continue;
units[c++] = *u;
free(u);
}
assert(c <= n_units);
hashmap_free(h);
r = 0;
} else {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
sd_bus *bus;
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
r = sd_bus_message_new_method_call(
bus,
&m,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"ListUnitFilesByPatterns");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append_strv(m, arg_states);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append_strv(m, strv_skip(argv, 1));
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, 0, &error, &reply);
if (r < 0 && sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_METHOD)) {
/* Fallback to legacy ListUnitFiles method */
fallback = true;
log_debug_errno(r, "Failed to list unit files: %s Falling back to ListUnitsFiles method.", bus_error_message(&error, r));
m = sd_bus_message_unref(m);
sd_bus_error_free(&error);
r = sd_bus_message_new_method_call(
bus,
&m,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"ListUnitFiles");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, 0, &error, &reply);
}
if (r < 0)
return log_error_errno(r, "Failed to list unit files: %s", bus_error_message(&error, r));
r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ss)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_read(reply, "(ss)", &path, &state)) > 0) {
if (!GREEDY_REALLOC(units, size, c + 1))
return log_oom();
units[c] = (struct UnitFileList) {
path,
unit_file_state_from_string(state)
};
if (output_show_unit_file(&units[c],
fallback ? arg_states : NULL,
fallback ? strv_skip(argv, 1) : NULL))
c++;
}
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
}
pager_open(arg_no_pager, false);
qsort_safe(units, c, sizeof(UnitFileList), compare_unit_file_list);
output_unit_file_list(units, c);
if (install_client_side())
for (unit = units; unit < units + c; unit++)
free(unit->path);
return 0;
}
static int list_dependencies_print(const char *name, int level, unsigned int branches, bool last) {
_cleanup_free_ char *n = NULL;
size_t max_len = MAX(columns(),20u);
size_t len = 0;
int i;
if (!arg_plain) {
for (i = level - 1; i >= 0; i--) {
len += 2;
if (len > max_len - 3 && !arg_full) {
printf("%s...\n",max_len % 2 ? "" : " ");
return 0;
}
printf("%s", special_glyph(branches & (1 << i) ? TREE_VERTICAL : TREE_SPACE));
}
len += 2;
if (len > max_len - 3 && !arg_full) {
printf("%s...\n",max_len % 2 ? "" : " ");
return 0;
}
printf("%s", special_glyph(last ? TREE_RIGHT : TREE_BRANCH));
}
if (arg_full) {
printf("%s\n", name);
return 0;
}
n = ellipsize(name, max_len-len, 100);
if (!n)
return log_oom();
printf("%s\n", n);
return 0;
}
static int list_dependencies_get_dependencies(sd_bus *bus, const char *name, char ***deps) {
static const char *dependencies[_DEPENDENCY_MAX] = {
[DEPENDENCY_FORWARD] = "Requires\0"
"Requisite\0"
"Wants\0"
"ConsistsOf\0"
"BindsTo\0",
[DEPENDENCY_REVERSE] = "RequiredBy\0"
"RequisiteOf\0"
"WantedBy\0"
"PartOf\0"
"BoundBy\0",
[DEPENDENCY_AFTER] = "After\0",
[DEPENDENCY_BEFORE] = "Before\0",
};
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_strv_free_ char **ret = NULL;
_cleanup_free_ char *path = NULL;
int r;
assert(bus);
assert(name);
assert(deps);
assert_cc(ELEMENTSOF(dependencies) == _DEPENDENCY_MAX);
path = unit_dbus_path_from_name(name);
if (!path)
return log_oom();
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
path,
"org.freedesktop.DBus.Properties",
"GetAll",
&error,
&reply,
"s", "org.freedesktop.systemd1.Unit");
if (r < 0)
return log_error_errno(r, "Failed to get properties of %s: %s", name, bus_error_message(&error, r));
r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{sv}");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) {
const char *prop;
r = sd_bus_message_read(reply, "s", &prop);
if (r < 0)
return bus_log_parse_error(r);
if (!nulstr_contains(dependencies[arg_dependency], prop)) {
r = sd_bus_message_skip(reply, "v");
if (r < 0)
return bus_log_parse_error(r);
} else {
r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_VARIANT, "as");
if (r < 0)
return bus_log_parse_error(r);
r = bus_message_read_strv_extend(reply, &ret);
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
}
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
}
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
*deps = strv_uniq(ret);
ret = NULL;
return 0;
}
static int list_dependencies_compare(const void *_a, const void *_b) {
const char **a = (const char**) _a, **b = (const char**) _b;
if (unit_name_to_type(*a) == UNIT_TARGET && unit_name_to_type(*b) != UNIT_TARGET)
return 1;
if (unit_name_to_type(*a) != UNIT_TARGET && unit_name_to_type(*b) == UNIT_TARGET)
return -1;
return strcasecmp(*a, *b);
}
static int list_dependencies_one(
sd_bus *bus,
const char *name,
int level,
char ***units,
unsigned int branches) {
_cleanup_strv_free_ char **deps = NULL;
char **c;
int r = 0;
assert(bus);
assert(name);
assert(units);
r = strv_extend(units, name);
if (r < 0)
return log_oom();
r = list_dependencies_get_dependencies(bus, name, &deps);
if (r < 0)
return r;
qsort_safe(deps, strv_length(deps), sizeof (char*), list_dependencies_compare);
STRV_FOREACH(c, deps) {
if (strv_contains(*units, *c)) {
if (!arg_plain) {
printf(" ");
r = list_dependencies_print("...", level + 1, (branches << 1) | (c[1] == NULL ? 0 : 1), 1);
if (r < 0)
return r;
}
continue;
}
if (arg_plain)
printf(" ");
else {
UnitActiveState active_state = _UNIT_ACTIVE_STATE_INVALID;
const char *on;
(void) get_state_one_unit(bus, *c, &active_state);
switch (active_state) {
case UNIT_ACTIVE:
case UNIT_RELOADING:
case UNIT_ACTIVATING:
on = ansi_highlight_green();
break;
case UNIT_INACTIVE:
case UNIT_DEACTIVATING:
on = ansi_normal();
break;
default:
on = ansi_highlight_red();
break;
}
printf("%s%s%s ", on, special_glyph(BLACK_CIRCLE), ansi_normal());
}
r = list_dependencies_print(*c, level, branches, c[1] == NULL);
if (r < 0)
return r;
if (arg_all || unit_name_to_type(*c) == UNIT_TARGET) {
r = list_dependencies_one(bus, *c, level + 1, units, (branches << 1) | (c[1] == NULL ? 0 : 1));
if (r < 0)
return r;
}
}
if (!arg_plain)
strv_remove(*units, name);
return 0;
}
static int list_dependencies(int argc, char *argv[], void *userdata) {
_cleanup_strv_free_ char **units = NULL;
_cleanup_free_ char *unit = NULL;
const char *u;
sd_bus *bus;
int r;
if (argv[1]) {
r = unit_name_mangle(argv[1], UNIT_NAME_NOGLOB, &unit);
if (r < 0)
return log_error_errno(r, "Failed to mangle unit name: %m");
u = unit;
} else
u = SPECIAL_DEFAULT_TARGET;
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
pager_open(arg_no_pager, false);
puts(u);
return list_dependencies_one(bus, u, 0, &units, 0);
}
struct machine_info {
bool is_host;
char *name;
char *state;
char *control_group;
uint32_t n_failed_units;
uint32_t n_jobs;
usec_t timestamp;
};
static const struct bus_properties_map machine_info_property_map[] = {
{ "SystemState", "s", NULL, offsetof(struct machine_info, state) },
{ "NJobs", "u", NULL, offsetof(struct machine_info, n_jobs) },
{ "NFailedUnits", "u", NULL, offsetof(struct machine_info, n_failed_units) },
{ "ControlGroup", "s", NULL, offsetof(struct machine_info, control_group) },
{ "UserspaceTimestamp", "t", NULL, offsetof(struct machine_info, timestamp) },
{}
};
static void machine_info_clear(struct machine_info *info) {
assert(info);
free(info->name);
free(info->state);
free(info->control_group);
zero(*info);
}
static void free_machines_list(struct machine_info *machine_infos, int n) {
int i;
if (!machine_infos)
return;
for (i = 0; i < n; i++)
machine_info_clear(&machine_infos[i]);
free(machine_infos);
}
static int compare_machine_info(const void *a, const void *b) {
const struct machine_info *u = a, *v = b;
if (u->is_host != v->is_host)
return u->is_host > v->is_host ? -1 : 1;
return strcasecmp(u->name, v->name);
}
static int get_machine_properties(sd_bus *bus, struct machine_info *mi) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *container = NULL;
int r;
assert(mi);
if (!bus) {
r = sd_bus_open_system_machine(&container, mi->name);
if (r < 0)
return r;
bus = container;
}
r = bus_map_all_properties(bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", machine_info_property_map, NULL, mi);
if (r < 0)
return r;
return 0;
}
static bool output_show_machine(const char *name, char **patterns) {
return strv_fnmatch_or_empty(patterns, name, FNM_NOESCAPE);
}
static int get_machine_list(
sd_bus *bus,
struct machine_info **_machine_infos,
char **patterns) {
struct machine_info *machine_infos = NULL;
_cleanup_strv_free_ char **m = NULL;
_cleanup_free_ char *hn = NULL;
size_t sz = 0;
char **i;
int c = 0, r;
hn = gethostname_malloc();
if (!hn)
return log_oom();
if (output_show_machine(hn, patterns)) {
if (!GREEDY_REALLOC0(machine_infos, sz, c+1))
return log_oom();
machine_infos[c].is_host = true;
machine_infos[c].name = hn;
hn = NULL;
(void) get_machine_properties(bus, &machine_infos[c]);
c++;
}
r = sd_get_machine_names(&m);
if (r < 0)
return log_error_errno(r, "Failed to get machine list: %m");
STRV_FOREACH(i, m) {
_cleanup_free_ char *class = NULL;
if (!output_show_machine(*i, patterns))
continue;
sd_machine_get_class(*i, &class);
if (!streq_ptr(class, "container"))
continue;
if (!GREEDY_REALLOC0(machine_infos, sz, c+1)) {
free_machines_list(machine_infos, c);
return log_oom();
}
machine_infos[c].is_host = false;
machine_infos[c].name = strdup(*i);
if (!machine_infos[c].name) {
free_machines_list(machine_infos, c);
return log_oom();
}
(void) get_machine_properties(NULL, &machine_infos[c]);
c++;
}
*_machine_infos = machine_infos;
return c;
}
static void output_machines_list(struct machine_info *machine_infos, unsigned n) {
struct machine_info *m;
unsigned
circle_len = 0,
namelen = STRLEN("NAME"),
statelen = STRLEN("STATE"),
failedlen = STRLEN("FAILED"),
jobslen = STRLEN("JOBS");
assert(machine_infos || n == 0);
for (m = machine_infos; m < machine_infos + n; m++) {
namelen = MAX(namelen,
strlen(m->name) + (m->is_host ? STRLEN(" (host)") : 0));
statelen = MAX(statelen, strlen_ptr(m->state));
failedlen = MAX(failedlen, DECIMAL_STR_WIDTH(m->n_failed_units));
jobslen = MAX(jobslen, DECIMAL_STR_WIDTH(m->n_jobs));
if (!arg_plain && !streq_ptr(m->state, "running"))
circle_len = 2;
}
if (!arg_no_legend) {
if (circle_len > 0)
fputs(" ", stdout);
printf("%-*s %-*s %-*s %-*s\n",
namelen, "NAME",
statelen, "STATE",
failedlen, "FAILED",
jobslen, "JOBS");
}
for (m = machine_infos; m < machine_infos + n; m++) {
const char *on_state = "", *off_state = "";
const char *on_failed = "", *off_failed = "";
bool circle = false;
if (streq_ptr(m->state, "degraded")) {
on_state = ansi_highlight_red();
off_state = ansi_normal();
circle = true;
} else if (!streq_ptr(m->state, "running")) {
on_state = ansi_highlight_yellow();
off_state = ansi_normal();
circle = true;
}
if (m->n_failed_units > 0) {
on_failed = ansi_highlight_red();
off_failed = ansi_normal();
} else
on_failed = off_failed = "";
if (circle_len > 0)
printf("%s%s%s ", on_state, circle ? special_glyph(BLACK_CIRCLE) : " ", off_state);
if (m->is_host)
printf("%-*s (host) %s%-*s%s %s%*" PRIu32 "%s %*" PRIu32 "\n",
(int) (namelen - (STRLEN(" (host)"))),
strna(m->name),
on_state, statelen, strna(m->state), off_state,
on_failed, failedlen, m->n_failed_units, off_failed,
jobslen, m->n_jobs);
else
printf("%-*s %s%-*s%s %s%*" PRIu32 "%s %*" PRIu32 "\n",
namelen, strna(m->name),
on_state, statelen, strna(m->state), off_state,
on_failed, failedlen, m->n_failed_units, off_failed,
jobslen, m->n_jobs);
}
if (!arg_no_legend)
printf("\n%u machines listed.\n", n);
}
static int list_machines(int argc, char *argv[], void *userdata) {
struct machine_info *machine_infos = NULL;
sd_bus *bus;
int r;
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
r = get_machine_list(bus, &machine_infos, strv_skip(argv, 1));
if (r < 0)
return r;
pager_open(arg_no_pager, false);
qsort_safe(machine_infos, r, sizeof(struct machine_info), compare_machine_info);
output_machines_list(machine_infos, r);
free_machines_list(machine_infos, r);
return 0;
}
static int get_default(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_free_ char *_path = NULL;
const char *path;
int r;
if (install_client_side()) {
r = unit_file_get_default(arg_scope, arg_root, &_path);
if (r < 0)
return log_error_errno(r, "Failed to get default target: %m");
path = _path;
r = 0;
} else {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
sd_bus *bus;
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"GetDefaultTarget",
&error,
&reply,
NULL);
if (r < 0)
return log_error_errno(r, "Failed to get default target: %s", bus_error_message(&error, r));
r = sd_bus_message_read(reply, "s", &path);
if (r < 0)
return bus_log_parse_error(r);
}
if (path)
printf("%s\n", path);
return 0;
}
static int set_default(int argc, char *argv[], void *userdata) {
_cleanup_free_ char *unit = NULL;
UnitFileChange *changes = NULL;
unsigned n_changes = 0;
int r;
assert(argc >= 2);
assert(argv);
r = unit_name_mangle_with_suffix(argv[1], UNIT_NAME_NOGLOB, ".target", &unit);
if (r < 0)
return log_error_errno(r, "Failed to mangle unit name: %m");
if (install_client_side()) {
r = unit_file_set_default(arg_scope, UNIT_FILE_FORCE, arg_root, unit, &changes, &n_changes);
unit_file_dump_changes(r, "set default", changes, n_changes, arg_quiet);
if (r > 0)
r = 0;
} else {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
sd_bus *bus;
polkit_agent_open_maybe();
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"SetDefaultTarget",
&error,
&reply,
"sb", unit, 1);
if (r < 0)
return log_error_errno(r, "Failed to set default target: %s", bus_error_message(&error, r));
r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet, &changes, &n_changes);
if (r < 0)
goto finish;
/* Try to reload if enabled */
if (!arg_no_reload)
r = daemon_reload(argc, argv, userdata);
else
r = 0;
}
finish:
unit_file_changes_free(changes, n_changes);
return r;
}
static int output_waiting_jobs(sd_bus *bus, uint32_t id, const char *method, const char *prefix) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
const char *name, *type, *state, *job_path, *unit_path;
uint32_t other_id;
int r;
assert(bus);
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
method,
&error,
&reply,
"u", id);
if (r < 0)
return log_debug_errno(r, "Failed to get waiting jobs for job %" PRIu32, id);
r = sd_bus_message_enter_container(reply, 'a', "(usssoo)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_read(reply, "(usssoo)", &other_id, &name, &type, &state, &job_path, &unit_path)) > 0)
printf("%s %u (%s/%s)\n", prefix, other_id, name, type);
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
return 0;
}
struct job_info {
uint32_t id;
const char *name, *type, *state;
};
static void output_jobs_list(sd_bus *bus, const struct job_info* jobs, unsigned n, bool skipped) {
unsigned id_len, unit_len, type_len, state_len;
const struct job_info *j;
const char *on, *off;
bool shorten = false;
assert(n == 0 || jobs);
if (n == 0) {
if (!arg_no_legend) {
on = ansi_highlight_green();
off = ansi_normal();
printf("%sNo jobs %s.%s\n", on, skipped ? "listed" : "running", off);
}
return;
}
pager_open(arg_no_pager, false);
id_len = STRLEN("JOB");
unit_len = STRLEN("UNIT");
type_len = STRLEN("TYPE");
state_len = STRLEN("STATE");
for (j = jobs; j < jobs + n; j++) {
uint32_t id = j->id;
assert(j->name && j->type && j->state);
id_len = MAX(id_len, DECIMAL_STR_WIDTH(id));
unit_len = MAX(unit_len, strlen(j->name));
type_len = MAX(type_len, strlen(j->type));
state_len = MAX(state_len, strlen(j->state));
}
if (!arg_full && id_len + 1 + unit_len + type_len + 1 + state_len > columns()) {
unit_len = MAX(33u, columns() - id_len - type_len - state_len - 3);
shorten = true;
}
if (!arg_no_legend)
printf("%*s %-*s %-*s %-*s\n",
id_len, "JOB",
unit_len, "UNIT",
type_len, "TYPE",
state_len, "STATE");
for (j = jobs; j < jobs + n; j++) {
_cleanup_free_ char *e = NULL;
if (streq(j->state, "running")) {
on = ansi_highlight();
off = ansi_normal();
} else
on = off = "";
e = shorten ? ellipsize(j->name, unit_len, 33) : NULL;
printf("%*u %s%-*s%s %-*s %s%-*s%s\n",
id_len, j->id,
on, unit_len, e ? e : j->name, off,
type_len, j->type,
on, state_len, j->state, off);
if (arg_jobs_after)
output_waiting_jobs(bus, j->id, "GetJobAfter", "\twaiting for job");
if (arg_jobs_before)
output_waiting_jobs(bus, j->id, "GetJobBefore", "\tblocking job");
}
if (!arg_no_legend) {
on = ansi_highlight();
off = ansi_normal();
printf("\n%s%u jobs listed%s.\n", on, n, off);
}
}
static bool output_show_job(struct job_info *job, char **patterns) {
return strv_fnmatch_or_empty(patterns, job->name, FNM_NOESCAPE);
}
static int list_jobs(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
const char *name, *type, *state, *job_path, *unit_path;
_cleanup_free_ struct job_info *jobs = NULL;
size_t size = 0;
unsigned c = 0;
sd_bus *bus;
uint32_t id;
int r;
bool skipped = false;
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"ListJobs",
&error,
&reply,
NULL);
if (r < 0)
return log_error_errno(r, "Failed to list jobs: %s", bus_error_message(&error, r));
r = sd_bus_message_enter_container(reply, 'a', "(usssoo)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_read(reply, "(usssoo)", &id, &name, &type, &state, &job_path, &unit_path)) > 0) {
struct job_info job = { id, name, type, state };
if (!output_show_job(&job, strv_skip(argv, 1))) {
skipped = true;
continue;
}
if (!GREEDY_REALLOC(jobs, size, c + 1))
return log_oom();
jobs[c++] = job;
}
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
pager_open(arg_no_pager, false);
output_jobs_list(bus, jobs, c, skipped);
return 0;
}
static int cancel_job(int argc, char *argv[], void *userdata) {
sd_bus *bus;
char **name;
int r = 0;
if (argc <= 1)
return trivial_method(argc, argv, userdata);
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
polkit_agent_open_maybe();
STRV_FOREACH(name, strv_skip(argv, 1)) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
uint32_t id;
int q;
q = safe_atou32(*name, &id);
if (q < 0)
return log_error_errno(q, "Failed to parse job id \"%s\": %m", *name);
q = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"CancelJob",
&error,
NULL,
"u", id);
if (q < 0) {
log_error_errno(q, "Failed to cancel job %"PRIu32": %s", id, bus_error_message(&error, q));
if (r == 0)
r = q;
}
}
return r;
}
static int need_daemon_reload(sd_bus *bus, const char *unit) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
const char *path;
int b, r;
/* We ignore all errors here, since this is used to show a
* warning only */
/* We don't use unit_dbus_path_from_name() directly since we
* don't want to load the unit if it isn't loaded. */
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"GetUnit",
NULL,
&reply,
"s", unit);
if (r < 0)
return r;
r = sd_bus_message_read(reply, "o", &path);
if (r < 0)
return r;
r = sd_bus_get_property_trivial(
bus,
"org.freedesktop.systemd1",
path,
"org.freedesktop.systemd1.Unit",
"NeedDaemonReload",
NULL,
'b', &b);
if (r < 0)
return r;
return b;
}
static void warn_unit_file_changed(const char *name) {
assert(name);
log_warning("%sWarning:%s The unit file, source configuration file or drop-ins of %s changed on disk. Run 'systemctl%s daemon-reload' to reload units.",
ansi_highlight_red(),
ansi_normal(),
name,
arg_scope == UNIT_FILE_SYSTEM ? "" : " --user");
}
static int unit_file_find_path(LookupPaths *lp, const char *unit_name, char **unit_path) {
char **p;
assert(lp);
assert(unit_name);
STRV_FOREACH(p, lp->search_path) {
_cleanup_free_ char *path = NULL, *lpath = NULL;
int r;
path = path_join(NULL, *p, unit_name);
if (!path)
return log_oom();
r = chase_symlinks(path, arg_root, 0, &lpath);
if (r == -ENOENT)
continue;
if (r == -ENOMEM)
return log_oom();
if (r < 0)
return log_error_errno(r, "Failed to access path '%s': %m", path);
if (unit_path) {
*unit_path = lpath;
lpath = NULL;
}
return 1;
}
return 0;
}
static int unit_find_template_path(
const char *unit_name,
LookupPaths *lp,
char **fragment_path,
char **template) {
_cleanup_free_ char *_template = NULL;
int r;
/* Returns 1 if a fragment was found, 0 if not found, negative on error. */
r = unit_file_find_path(lp, unit_name, fragment_path);
if (r != 0)
return r; /* error or found a real unit */
r = unit_name_template(unit_name, &_template);
if (r == -EINVAL)
return 0; /* not a template, does not exist */
if (r < 0)
return log_error_errno(r, "Failed to determine template name: %m");
r = unit_file_find_path(lp, _template, fragment_path);
if (r < 0)
return r;
if (template) {
*template = _template;
_template = NULL;
}
return r;
}
static int unit_find_paths(
sd_bus *bus,
const char *unit_name,
LookupPaths *lp,
char **fragment_path,
char ***dropin_paths) {
_cleanup_free_ char *path = NULL;
_cleanup_strv_free_ char **dropins = NULL;
int r;
/**
* Finds where the unit is defined on disk. Returns 0 if the unit
* is not found. Returns 1 if it is found, and sets
* - the path to the unit in *path, if it exists on disk,
* - and a strv of existing drop-ins in *dropins,
* if the arg is not NULL and any dropins were found.
*/
assert(unit_name);
assert(fragment_path);
assert(lp);
if (!install_client_side() && !unit_name_is_valid(unit_name, UNIT_NAME_TEMPLATE)) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_free_ char *unit = NULL;
unit = unit_dbus_path_from_name(unit_name);
if (!unit)
return log_oom();
r = sd_bus_get_property_string(
bus,
"org.freedesktop.systemd1",
unit,
"org.freedesktop.systemd1.Unit",
"FragmentPath",
&error,
&path);
if (r < 0)
return log_error_errno(r, "Failed to get FragmentPath: %s", bus_error_message(&error, r));
if (dropin_paths) {
r = sd_bus_get_property_strv(
bus,
"org.freedesktop.systemd1",
unit,
"org.freedesktop.systemd1.Unit",
"DropInPaths",
&error,
&dropins);
if (r < 0)
return log_error_errno(r, "Failed to get DropInPaths: %s", bus_error_message(&error, r));
}
} else {
_cleanup_set_free_ Set *names = NULL;
_cleanup_free_ char *template = NULL;
names = set_new(NULL);
if (!names)
return log_oom();
r = unit_find_template_path(unit_name, lp, &path, &template);
if (r < 0)
return r;
if (r > 0)
/* We found the unit file. If we followed symlinks, this name might be
* different then the unit_name with started with. Look for dropins matching
* that "final" name. */
r = set_put(names, basename(path));
else if (!template)
/* No unit file, let's look for dropins matching the original name.
* systemd has fairly complicated rules (based on unit type and provenience),
* which units are allowed not to have the main unit file. We err on the
* side of including too many files, and always try to load dropins. */
r = set_put(names, unit_name);
else
/* The cases where we allow a unit to exist without the main file are
* never valid for templates. Don't try to load dropins in this case. */
goto not_found;
if (r < 0)
return log_error_errno(r, "Failed to add unit name: %m");
if (dropin_paths) {
r = unit_file_find_dropin_conf_paths(arg_root, lp->search_path,
NULL, names, &dropins);
if (r < 0)
return r;
}
}
r = 0;
if (!isempty(path)) {
*fragment_path = path;
path = NULL;
r = 1;
}
if (dropin_paths && !strv_isempty(dropins)) {
*dropin_paths = dropins;
dropins = NULL;
r = 1;
}
not_found:
if (r == 0 && !arg_force)
log_error("No files found for %s.", unit_name);
return r;
}
static int get_state_one_unit(sd_bus *bus, const char *name, UnitActiveState *active_state) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_free_ char *buf = NULL;
UnitActiveState state;
const char *path;
int r;
assert(name);
assert(active_state);
/* We don't use unit_dbus_path_from_name() directly since we don't want to load the unit unnecessarily, if it
* isn't loaded. */
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"GetUnit",
&error,
&reply,
"s", name);
if (r < 0) {
if (!sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT))
return log_error_errno(r, "Failed to retrieve unit: %s", bus_error_message(&error, r));
/* The unit is currently not loaded, hence say it's "inactive", since all units that aren't loaded are
* considered inactive. */
state = UNIT_INACTIVE;
} else {
r = sd_bus_message_read(reply, "o", &path);
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_get_property_string(
bus,
"org.freedesktop.systemd1",
path,
"org.freedesktop.systemd1.Unit",
"ActiveState",
&error,
&buf);
if (r < 0)
return log_error_errno(r, "Failed to retrieve unit state: %s", bus_error_message(&error, r));
state = unit_active_state_from_string(buf);
if (state == _UNIT_ACTIVE_STATE_INVALID) {
log_error("Invalid unit state '%s' for: %s", buf, name);
return -EINVAL;
}
}
*active_state = state;
return 0;
}
static int check_triggering_units(
sd_bus *bus,
const char *name) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_free_ char *path = NULL, *n = NULL, *load_state = NULL;
_cleanup_strv_free_ char **triggered_by = NULL;
bool print_warning_label = true;
UnitActiveState active_state;
char **i;
int r;
r = unit_name_mangle(name, UNIT_NAME_NOGLOB, &n);
if (r < 0)
return log_error_errno(r, "Failed to mangle unit name: %m");
path = unit_dbus_path_from_name(n);
if (!path)
return log_oom();
r = sd_bus_get_property_string(
bus,
"org.freedesktop.systemd1",
path,
"org.freedesktop.systemd1.Unit",
"LoadState",
&error,
&load_state);
if (r < 0)
return log_error_errno(r, "Failed to get load state of %s: %s", n, bus_error_message(&error, r));
if (streq(load_state, "masked"))
return 0;
r = sd_bus_get_property_strv(
bus,
"org.freedesktop.systemd1",
path,
"org.freedesktop.systemd1.Unit",
"TriggeredBy",
&error,
&triggered_by);
if (r < 0)
return log_error_errno(r, "Failed to get triggered by array of %s: %s", n, bus_error_message(&error, r));
STRV_FOREACH(i, triggered_by) {
r = get_state_one_unit(bus, *i, &active_state);
if (r < 0)
return r;
if (!IN_SET(active_state, UNIT_ACTIVE, UNIT_RELOADING))
continue;
if (print_warning_label) {
log_warning("Warning: Stopping %s, but it can still be activated by:", n);
print_warning_label = false;
}
log_warning(" %s", *i);
}
return 0;
}
static const struct {
const char *verb;
const char *method;
} unit_actions[] = {
{ "start", "StartUnit" },
{ "stop", "StopUnit" },
{ "condstop", "StopUnit" },
{ "reload", "ReloadUnit" },
{ "restart", "RestartUnit" },
{ "try-restart", "TryRestartUnit" },
{ "condrestart", "TryRestartUnit" },
{ "reload-or-restart", "ReloadOrRestartUnit" },
{ "try-reload-or-restart", "ReloadOrTryRestartUnit" },
{ "reload-or-try-restart", "ReloadOrTryRestartUnit" },
{ "condreload", "ReloadOrTryRestartUnit" },
{ "force-reload", "ReloadOrTryRestartUnit" }
};
static const char *verb_to_method(const char *verb) {
uint i;
for (i = 0; i < ELEMENTSOF(unit_actions); i++)
if (streq_ptr(unit_actions[i].verb, verb))
return unit_actions[i].method;
return "StartUnit";
}
static const char *method_to_verb(const char *method) {
uint i;
for (i = 0; i < ELEMENTSOF(unit_actions); i++)
if (streq_ptr(unit_actions[i].method, method))
return unit_actions[i].verb;
return "n/a";
}
typedef struct {
sd_bus_slot *match;
sd_event *event;
Set *unit_paths;
bool any_failed;
} WaitContext;
static void wait_context_free(WaitContext *c) {
c->match = sd_bus_slot_unref(c->match);
c->event = sd_event_unref(c->event);
c->unit_paths = set_free_free(c->unit_paths);
}
static int on_properties_changed(sd_bus_message *m, void *userdata, sd_bus_error *error) {
WaitContext *c = userdata;
const char *path;
int r;
path = sd_bus_message_get_path(m);
if (!set_contains(c->unit_paths, path))
return 0;
/* Check if ActiveState changed to inactive/failed */
/* (s interface, a{sv} changed_properties, as invalidated_properties) */
r = sd_bus_message_skip(m, "s");
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "{sv}");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_enter_container(m, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) {
const char *s;
r = sd_bus_message_read(m, "s", &s);
if (r < 0)
return bus_log_parse_error(r);
if (streq(s, "ActiveState")) {
bool is_failed;
r = sd_bus_message_enter_container(m, SD_BUS_TYPE_VARIANT, "s");
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_read(m, "s", &s);
if (r < 0)
return bus_log_parse_error(r);
is_failed = streq(s, "failed");
if (streq(s, "inactive") || is_failed) {
log_debug("%s became %s, dropping from --wait tracking", path, s);
free(set_remove(c->unit_paths, path));
c->any_failed = c->any_failed || is_failed;
} else
log_debug("ActiveState on %s changed to %s", path, s);
break; /* no need to dissect the rest of the message */
} else {
/* other property */
r = sd_bus_message_skip(m, "v");
if (r < 0)
return bus_log_parse_error(r);
}
r = sd_bus_message_exit_container(m);
if (r < 0)
return bus_log_parse_error(r);
}
if (r < 0)
return bus_log_parse_error(r);
if (set_isempty(c->unit_paths))
sd_event_exit(c->event, EXIT_SUCCESS);
return 0;
}
static int start_unit_one(
sd_bus *bus,
const char *method,
const char *name,
const char *mode,
sd_bus_error *error,
BusWaitForJobs *w,
WaitContext *wait_context) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
const char *path;
int r;
assert(method);
assert(name);
assert(mode);
assert(error);
if (wait_context) {
_cleanup_free_ char *unit_path = NULL;
log_debug("Watching for property changes of %s", name);
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"RefUnit",
error,
NULL,
"s", name);
if (r < 0)
return log_error_errno(r, "Failed to RefUnit %s: %s", name, bus_error_message(error, r));
unit_path = unit_dbus_path_from_name(name);
if (!unit_path)
return log_oom();
r = set_put_strdup(wait_context->unit_paths, unit_path);
if (r < 0)
return log_error_errno(r, "Failed to add unit path %s to set: %m", unit_path);
r = sd_bus_match_signal_async(bus,
&wait_context->match,
NULL,
unit_path,
"org.freedesktop.DBus.Properties",
"PropertiesChanged",
on_properties_changed, NULL, wait_context);
if (r < 0)
return log_error_errno(r, "Failed to request match for PropertiesChanged signal: %m");
}
log_debug("%s manager for %s on %s, %s",
arg_dry_run ? "Would call" : "Calling",
method, name, mode);
if (arg_dry_run)
return 0;
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
method,
error,
&reply,
"ss", name, mode);
if (r < 0) {
const char *verb;
/* There's always a fallback possible for legacy actions. */
if (arg_action != ACTION_SYSTEMCTL)
return r;
verb = method_to_verb(method);
log_error("Failed to %s %s: %s", verb, name, bus_error_message(error, r));
if (!sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT) &&
!sd_bus_error_has_name(error, BUS_ERROR_UNIT_MASKED))
log_error("See %s logs and 'systemctl%s status%s %s' for details.",
arg_scope == UNIT_FILE_SYSTEM ? "system" : "user",
arg_scope == UNIT_FILE_SYSTEM ? "" : " --user",
name[0] == '-' ? " --" : "",
name);
return r;
}
r = sd_bus_message_read(reply, "o", &path);
if (r < 0)
return bus_log_parse_error(r);
if (need_daemon_reload(bus, name) > 0)
warn_unit_file_changed(name);
if (w) {
log_debug("Adding %s to the set", path);
r = bus_wait_for_jobs_add(w, path);
if (r < 0)
return log_oom();
}
return 0;
}
static int expand_names(sd_bus *bus, char **names, const char* suffix, char ***ret) {
_cleanup_strv_free_ char **mangled = NULL, **globs = NULL;
char **name;
int r, i;
assert(bus);
assert(ret);
STRV_FOREACH(name, names) {
char *t;
if (suffix)
r = unit_name_mangle_with_suffix(*name, UNIT_NAME_GLOB, suffix, &t);
else
r = unit_name_mangle(*name, UNIT_NAME_GLOB, &t);
if (r < 0)
return log_error_errno(r, "Failed to mangle name: %m");
if (string_is_glob(t))
r = strv_consume(&globs, t);
else
r = strv_consume(&mangled, t);
if (r < 0)
return log_oom();
}
/* Query the manager only if any of the names are a glob, since
* this is fairly expensive */
if (!strv_isempty(globs)) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_free_ UnitInfo *unit_infos = NULL;
size_t allocated, n;
r = get_unit_list(bus, NULL, globs, &unit_infos, 0, &reply);
if (r < 0)
return r;
n = strv_length(mangled);
allocated = n + 1;
for (i = 0; i < r; i++) {
if (!GREEDY_REALLOC(mangled, allocated, n+2))
return log_oom();
mangled[n] = strdup(unit_infos[i].id);
if (!mangled[n])
return log_oom();
mangled[++n] = NULL;
}
}
*ret = mangled;
mangled = NULL; /* do not free */
return 0;
}
static const struct {
const char *target;
const char *verb;
const char *mode;
} action_table[_ACTION_MAX] = {
[ACTION_HALT] = { SPECIAL_HALT_TARGET, "halt", "replace-irreversibly" },
[ACTION_POWEROFF] = { SPECIAL_POWEROFF_TARGET, "poweroff", "replace-irreversibly" },
[ACTION_REBOOT] = { SPECIAL_REBOOT_TARGET, "reboot", "replace-irreversibly" },
[ACTION_KEXEC] = { SPECIAL_KEXEC_TARGET, "kexec", "replace-irreversibly" },
[ACTION_RUNLEVEL2] = { SPECIAL_MULTI_USER_TARGET, NULL, "isolate" },
[ACTION_RUNLEVEL3] = { SPECIAL_MULTI_USER_TARGET, NULL, "isolate" },
[ACTION_RUNLEVEL4] = { SPECIAL_MULTI_USER_TARGET, NULL, "isolate" },
[ACTION_RUNLEVEL5] = { SPECIAL_GRAPHICAL_TARGET, NULL, "isolate" },
[ACTION_RESCUE] = { SPECIAL_RESCUE_TARGET, "rescue", "isolate" },
[ACTION_EMERGENCY] = { SPECIAL_EMERGENCY_TARGET, "emergency", "isolate" },
[ACTION_DEFAULT] = { SPECIAL_DEFAULT_TARGET, "default", "isolate" },
[ACTION_EXIT] = { SPECIAL_EXIT_TARGET, "exit", "replace-irreversibly" },
[ACTION_SUSPEND] = { SPECIAL_SUSPEND_TARGET, "suspend", "replace-irreversibly" },
[ACTION_HIBERNATE] = { SPECIAL_HIBERNATE_TARGET, "hibernate", "replace-irreversibly" },
[ACTION_HYBRID_SLEEP] = { SPECIAL_HYBRID_SLEEP_TARGET, "hybrid-sleep", "replace-irreversibly" },
};
static enum action verb_to_action(const char *verb) {
enum action i;
for (i = 0; i < _ACTION_MAX; i++)
if (streq_ptr(action_table[i].verb, verb))
return i;
return _ACTION_INVALID;
}
static int start_unit(int argc, char *argv[], void *userdata) {
_cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL;
const char *method, *mode, *one_name, *suffix = NULL;
_cleanup_strv_free_ char **names = NULL;
sd_bus *bus;
_cleanup_(wait_context_free) WaitContext wait_context = {};
char **name;
int r = 0;
if (arg_wait && !STR_IN_SET(argv[0], "start", "restart")) {
log_error("--wait may only be used with the 'start' or 'restart' commands.");
return -EINVAL;
}
/* we cannot do sender tracking on the private bus, so we need the full
* one for RefUnit to implement --wait */
r = acquire_bus(arg_wait ? BUS_FULL : BUS_MANAGER, &bus);
if (r < 0)
return r;
ask_password_agent_open_if_enabled();
polkit_agent_open_maybe();
if (arg_action == ACTION_SYSTEMCTL) {
enum action action;
action = verb_to_action(argv[0]);
if (action != _ACTION_INVALID) {
method = "StartUnit";
mode = action_table[action].mode;
one_name = action_table[action].target;
} else {
if (streq(argv[0], "isolate")) {
method = "StartUnit";
mode = "isolate";
suffix = ".target";
} else {
method = verb_to_method(argv[0]);
mode = arg_job_mode;
}
one_name = NULL;
}
} else {
assert(arg_action >= 0 && arg_action < _ACTION_MAX);
assert(action_table[arg_action].target);
assert(action_table[arg_action].mode);
method = "StartUnit";
mode = action_table[arg_action].mode;
one_name = action_table[arg_action].target;
}
if (one_name)
names = strv_new(one_name, NULL);
else {
r = expand_names(bus, strv_skip(argv, 1), suffix, &names);
if (r < 0)
return log_error_errno(r, "Failed to expand names: %m");
}
if (!arg_no_block) {
r = bus_wait_for_jobs_new(bus, &w);
if (r < 0)
return log_error_errno(r, "Could not watch jobs: %m");
}
if (arg_wait) {
wait_context.unit_paths = set_new(&string_hash_ops);
if (!wait_context.unit_paths)
return log_oom();
r = sd_bus_call_method_async(
bus,
NULL,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"Subscribe",
NULL, NULL,
NULL);
if (r < 0)
return log_error_errno(r, "Failed to enable subscription: %m");
r = sd_event_default(&wait_context.event);
if (r < 0)
return log_error_errno(r, "Failed to allocate event loop: %m");
r = sd_bus_attach_event(bus, wait_context.event, 0);
if (r < 0)
return log_error_errno(r, "Failed to attach bus to event loop: %m");
}
STRV_FOREACH(name, names) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
int q;
q = start_unit_one(bus, method, *name, mode, &error, w, arg_wait ? &wait_context : NULL);
if (r >= 0 && q < 0)
r = translate_bus_error_to_exit_status(q, &error);
}
if (!arg_no_block) {
int q, arg_count = 0;
const char* extra_args[4] = {};
if (arg_scope != UNIT_FILE_SYSTEM)
extra_args[arg_count++] = "--user";
assert(IN_SET(arg_transport, BUS_TRANSPORT_LOCAL, BUS_TRANSPORT_REMOTE, BUS_TRANSPORT_MACHINE));
if (arg_transport == BUS_TRANSPORT_REMOTE) {
extra_args[arg_count++] = "-H";
extra_args[arg_count++] = arg_host;
} else if (arg_transport == BUS_TRANSPORT_MACHINE) {
extra_args[arg_count++] = "-M";
extra_args[arg_count++] = arg_host;
}
q = bus_wait_for_jobs(w, arg_quiet, extra_args);
if (q < 0)
return q;
/* When stopping units, warn if they can still be triggered by
* another active unit (socket, path, timer) */
if (!arg_quiet && streq(method, "StopUnit"))
STRV_FOREACH(name, names)
check_triggering_units(bus, *name);
}
if (r >= 0 && arg_wait) {
int q;
q = sd_event_loop(wait_context.event);
if (q < 0)
return log_error_errno(q, "Failed to run event loop: %m");
if (wait_context.any_failed)
r = EXIT_FAILURE;
}
return r;
}
#if ENABLE_LOGIND
static int logind_set_wall_message(void) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
sd_bus *bus;
_cleanup_free_ char *m = NULL;
int r;
r = acquire_bus(BUS_FULL, &bus);
if (r < 0)
return r;
m = strv_join(arg_wall, " ");
if (!m)
return log_oom();
r = sd_bus_call_method(
bus,
"org.freedesktop.login1",
"/org/freedesktop/login1",
"org.freedesktop.login1.Manager",
"SetWallMessage",
&error,
NULL,
"sb",
m,
!arg_no_wall);
if (r < 0)
return log_warning_errno(r, "Failed to set wall message, ignoring: %s", bus_error_message(&error, r));
return 0;
}
#endif
/* Ask systemd-logind, which might grant access to unprivileged users
* through PolicyKit */
static int logind_reboot(enum action a) {
#if ENABLE_LOGIND
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
const char *method, *description;
sd_bus *bus;
int r;
r = acquire_bus(BUS_FULL, &bus);
if (r < 0)
return r;
switch (a) {
case ACTION_POWEROFF:
method = "PowerOff";
description = "power off system";
break;
case ACTION_REBOOT:
method = "Reboot";
description = "reboot system";
break;
case ACTION_HALT:
method = "Halt";
description = "halt system";
break;
case ACTION_SUSPEND:
method = "Suspend";
description = "suspend system";
break;
case ACTION_HIBERNATE:
method = "Hibernate";
description = "hibernate system";
break;
case ACTION_HYBRID_SLEEP:
method = "HybridSleep";
description = "put system into hybrid sleep";
break;
default:
return -EINVAL;
}
polkit_agent_open_maybe();
(void) logind_set_wall_message();
r = sd_bus_call_method(
bus,
"org.freedesktop.login1",
"/org/freedesktop/login1",
"org.freedesktop.login1.Manager",
method,
&error,
NULL,
"b", arg_ask_password);
if (r < 0)
return log_error_errno(r, "Failed to %s via logind: %s", description, bus_error_message(&error, r));
return 0;
#else
return -ENOSYS;
#endif
}
static int logind_check_inhibitors(enum action a) {
#if ENABLE_LOGIND
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_strv_free_ char **sessions = NULL;
const char *what, *who, *why, *mode;
uint32_t uid, pid;
sd_bus *bus;
unsigned c = 0;
char **s;
int r;
if (arg_ignore_inhibitors || arg_force > 0)
return 0;
if (arg_when > 0)
return 0;
if (geteuid() == 0)
return 0;
if (!on_tty())
return 0;
if (arg_transport != BUS_TRANSPORT_LOCAL)
return 0;
r = acquire_bus(BUS_FULL, &bus);
if (r < 0)
return r;
r = sd_bus_call_method(
bus,
"org.freedesktop.login1",
"/org/freedesktop/login1",
"org.freedesktop.login1.Manager",
"ListInhibitors",
NULL,
&reply,
NULL);
if (r < 0)
/* If logind is not around, then there are no inhibitors... */
return 0;
r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssuu)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_read(reply, "(ssssuu)", &what, &who, &why, &mode, &uid, &pid)) > 0) {
_cleanup_free_ char *comm = NULL, *user = NULL;
_cleanup_strv_free_ char **sv = NULL;
if (!streq(mode, "block"))
continue;
sv = strv_split(what, ":");
if (!sv)
return log_oom();
if (!pid_is_valid((pid_t) pid)) {
log_error("Invalid PID "PID_FMT".", (pid_t) pid);
return -ERANGE;
}
if (!strv_contains(sv,
IN_SET(a,
ACTION_HALT,
ACTION_POWEROFF,
ACTION_REBOOT,
ACTION_KEXEC) ? "shutdown" : "sleep"))
continue;
get_process_comm(pid, &comm);
user = uid_to_name(uid);
log_warning("Operation inhibited by \"%s\" (PID "PID_FMT" \"%s\", user %s), reason is \"%s\".",
who, (pid_t) pid, strna(comm), strna(user), why);
c++;
}
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
/* Check for current sessions */
sd_get_sessions(&sessions);
STRV_FOREACH(s, sessions) {
_cleanup_free_ char *type = NULL, *tty = NULL, *seat = NULL, *user = NULL, *service = NULL, *class = NULL;
if (sd_session_get_uid(*s, &uid) < 0 || uid == getuid())
continue;
if (sd_session_get_class(*s, &class) < 0 || !streq(class, "user"))
continue;
if (sd_session_get_type(*s, &type) < 0 || !STR_IN_SET(type, "x11", "wayland", "tty", "mir"))
continue;
sd_session_get_tty(*s, &tty);
sd_session_get_seat(*s, &seat);
sd_session_get_service(*s, &service);
user = uid_to_name(uid);
log_warning("User %s is logged in on %s.", strna(user), isempty(tty) ? (isempty(seat) ? strna(service) : seat) : tty);
c++;
}
if (c <= 0)
return 0;
log_error("Please retry operation after closing inhibitors and logging out other users.\nAlternatively, ignore inhibitors and users with 'systemctl %s -i'.",
action_table[a].verb);
return -EPERM;
#else
return 0;
#endif
}
static int logind_prepare_firmware_setup(void) {
#if ENABLE_LOGIND
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
sd_bus *bus;
int r;
r = acquire_bus(BUS_FULL, &bus);
if (r < 0)
return r;
r = sd_bus_call_method(
bus,
"org.freedesktop.login1",
"/org/freedesktop/login1",
"org.freedesktop.login1.Manager",
"SetRebootToFirmwareSetup",
&error,
NULL,
"b", true);
if (r < 0)
return log_error_errno(r, "Cannot indicate to EFI to boot into setup mode: %s", bus_error_message(&error, r));
return 0;
#else
log_error("Cannot remotely indicate to EFI to boot into setup mode.");
return -ENOSYS;
#endif
}
static int prepare_firmware_setup(void) {
int r;
if (!arg_firmware_setup)
return 0;
if (arg_transport == BUS_TRANSPORT_LOCAL) {
r = efi_set_reboot_to_firmware(true);
if (r < 0)
log_debug_errno(r, "Cannot indicate to EFI to boot into setup mode, will retry via logind: %m");
else
return r;
}
return logind_prepare_firmware_setup();
}
static int load_kexec_kernel(void) {
_cleanup_(boot_config_free) BootConfig config = {};
_cleanup_free_ char *where = NULL, *kernel = NULL, *initrd = NULL, *options = NULL;
const BootEntry *e;
pid_t pid;
int r;
if (kexec_loaded()) {
log_debug("Kexec kernel already loaded.");
return 0;
}
r = find_esp_and_warn(arg_esp_path, false, &where, NULL, NULL, NULL, NULL);
if (r == -ENOKEY) /* find_esp_and_warn() doesn't warn about this case */
return log_error_errno(r, "Cannot find the ESP partition mount point.");
if (r < 0) /* But it logs about all these cases, hence don't log here again */
return r;
r = boot_entries_load_config(where, &config);
if (r < 0)
return log_error_errno(r, "Failed to load bootspec config from \"%s/loader\": %m", where);
if (config.default_entry < 0) {
log_error("No entry suitable as default, refusing to guess.");
return -ENOENT;
}
e = &config.entries[config.default_entry];
if (strv_length(e->initrd) > 1) {
log_error("Boot entry specifies multiple initrds, which is not supported currently.");
return -EINVAL;
}
kernel = path_join(NULL, where, e->kernel);
if (!strv_isempty(e->initrd))
initrd = path_join(NULL, where, *e->initrd);
options = strv_join(e->options, " ");
if (!options)
return log_oom();
log_debug("%s kexec kernel %s initrd %s options \"%s\".",
arg_dry_run ? "Would load" : "loading",
kernel, initrd, options);
if (arg_dry_run)
return 0;
r = safe_fork("(kexec)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_LOG, &pid);
if (r < 0)
return r;
if (r == 0) {
const char* const args[] = {
KEXEC,
"--load", kernel,
"--append", options,
initrd ? "--initrd" : NULL, initrd,
NULL };
/* Child */
execv(args[0], (char * const *) args);
_exit(EXIT_FAILURE);
}
return wait_for_terminate_and_check("kexec", pid, WAIT_LOG);
}
static int set_exit_code(uint8_t code) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
sd_bus *bus;
int r;
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"SetExitCode",
&error,
NULL,
"y", code);
if (r < 0)
return log_error_errno(r, "Failed to set exit code: %s", bus_error_message(&error, r));
return 0;
}
static int start_special(int argc, char *argv[], void *userdata) {
enum action a;
int r;
bool termination_action; /* an action that terminates the manager,
* can be performed also by signal. */
assert(argv);
a = verb_to_action(argv[0]);
r = logind_check_inhibitors(a);
if (r < 0)
return r;
if (arg_force >= 2) {
r = must_be_root();
if (r < 0)
return r;
}
r = prepare_firmware_setup();
if (r < 0)
return r;
if (a == ACTION_REBOOT && argc > 1) {
r = update_reboot_parameter_and_warn(argv[1]);
if (r < 0)
return r;
} else if (a == ACTION_KEXEC) {
r = load_kexec_kernel();
if (r < 0)
return r;
} else if (a == ACTION_EXIT && argc > 1) {
uint8_t code;
/* If the exit code is not given on the command line,
* don't reset it to zero: just keep it as it might
* have been set previously. */
r = safe_atou8(argv[1], &code);
if (r < 0)
return log_error_errno(r, "Invalid exit code.");
r = set_exit_code(code);
if (r < 0)
return r;
}
termination_action = IN_SET(a,
ACTION_HALT,
ACTION_POWEROFF,
ACTION_REBOOT);
if (termination_action && arg_force >= 2)
return halt_now(a);
if (arg_force >= 1 &&
(termination_action || IN_SET(a, ACTION_KEXEC, ACTION_EXIT)))
r = trivial_method(argc, argv, userdata);
else {
/* First try logind, to allow authentication with polkit */
if (IN_SET(a,
ACTION_POWEROFF,
ACTION_REBOOT,
ACTION_HALT,
ACTION_SUSPEND,
ACTION_HIBERNATE,
ACTION_HYBRID_SLEEP)) {
r = logind_reboot(a);
if (r >= 0)
return r;
if (IN_SET(r, -EOPNOTSUPP, -EINPROGRESS))
/* requested operation is not supported or already in progress */
return r;
/* On all other errors, try low-level operation. In order to minimize the difference between
* operation with and without logind, we explicitly enable non-blocking mode for this, as
* logind's shutdown operations are always non-blocking. */
arg_no_block = true;
} else if (IN_SET(a, ACTION_EXIT, ACTION_KEXEC))
/* Since exit/kexec are so close in behaviour to power-off/reboot, let's also make them
* asynchronous, in order to not confuse the user needlessly with unexpected behaviour. */
arg_no_block = true;
r = start_unit(argc, argv, userdata);
}
if (termination_action && arg_force < 2 &&
IN_SET(r, -ENOENT, -ETIMEDOUT))
log_notice("It is possible to perform action directly, see discussion of --force --force in man:systemctl(1).");
return r;
}
static int start_system_special(int argc, char *argv[], void *userdata) {
/* Like start_special above, but raises an error when running in user mode */
if (arg_scope != UNIT_FILE_SYSTEM) {
log_error("Bad action for %s mode.",
arg_scope == UNIT_FILE_GLOBAL ? "--global" : "--user");
return -EINVAL;
}
return start_special(argc, argv, userdata);
}
static int check_unit_generic(int code, const UnitActiveState good_states[], int nb_states, char **args) {
_cleanup_strv_free_ char **names = NULL;
UnitActiveState active_state;
sd_bus *bus;
char **name;
int r, i;
bool found = false;
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
r = expand_names(bus, args, NULL, &names);
if (r < 0)
return log_error_errno(r, "Failed to expand names: %m");
STRV_FOREACH(name, names) {
r = get_state_one_unit(bus, *name, &active_state);
if (r < 0)
return r;
if (!arg_quiet)
puts(unit_active_state_to_string(active_state));
for (i = 0; i < nb_states; ++i)
if (good_states[i] == active_state)
found = true;
}
/* use the given return code for the case that we won't find
* any unit which matches the list */
return found ? 0 : code;
}
static int check_unit_active(int argc, char *argv[], void *userdata) {
const UnitActiveState states[] = { UNIT_ACTIVE, UNIT_RELOADING };
/* According to LSB: 3, "program is not running" */
return check_unit_generic(EXIT_PROGRAM_NOT_RUNNING, states, ELEMENTSOF(states), strv_skip(argv, 1));
}
static int check_unit_failed(int argc, char *argv[], void *userdata) {
const UnitActiveState states[] = { UNIT_FAILED };
return check_unit_generic(EXIT_PROGRAM_DEAD_AND_PID_EXISTS, states, ELEMENTSOF(states), strv_skip(argv, 1));
}
static int kill_unit(int argc, char *argv[], void *userdata) {
_cleanup_strv_free_ char **names = NULL;
char *kill_who = NULL, **name;
sd_bus *bus;
int r, q;
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
polkit_agent_open_maybe();
if (!arg_kill_who)
arg_kill_who = "all";
/* --fail was specified */
if (streq(arg_job_mode, "fail"))
kill_who = strjoina(arg_kill_who, "-fail");
r = expand_names(bus, strv_skip(argv, 1), NULL, &names);
if (r < 0)
return log_error_errno(r, "Failed to expand names: %m");
STRV_FOREACH(name, names) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
q = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"KillUnit",
&error,
NULL,
"ssi", *name, kill_who ? kill_who : arg_kill_who, arg_signal);
if (q < 0) {
log_error_errno(q, "Failed to kill unit %s: %s", *name, bus_error_message(&error, q));
if (r == 0)
r = q;
}
}
return r;
}
typedef struct ExecStatusInfo {
char *name;
char *path;
char **argv;
bool ignore;
usec_t start_timestamp;
usec_t exit_timestamp;
pid_t pid;
int code;
int status;
LIST_FIELDS(struct ExecStatusInfo, exec);
} ExecStatusInfo;
static void exec_status_info_free(ExecStatusInfo *i) {
assert(i);
free(i->name);
free(i->path);
strv_free(i->argv);
free(i);
}
static int exec_status_info_deserialize(sd_bus_message *m, ExecStatusInfo *i) {
uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
const char *path;
uint32_t pid;
int32_t code, status;
int ignore, r;
assert(m);
assert(i);
r = sd_bus_message_enter_container(m, SD_BUS_TYPE_STRUCT, "sasbttttuii");
if (r < 0)
return bus_log_parse_error(r);
else if (r == 0)
return 0;
r = sd_bus_message_read(m, "s", &path);
if (r < 0)
return bus_log_parse_error(r);
i->path = strdup(path);
if (!i->path)
return log_oom();
r = sd_bus_message_read_strv(m, &i->argv);
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_read(m,
"bttttuii",
&ignore,
&start_timestamp, &start_timestamp_monotonic,
&exit_timestamp, &exit_timestamp_monotonic,
&pid,
&code, &status);
if (r < 0)
return bus_log_parse_error(r);
i->ignore = ignore;
i->start_timestamp = (usec_t) start_timestamp;
i->exit_timestamp = (usec_t) exit_timestamp;
i->pid = (pid_t) pid;
i->code = code;
i->status = status;
r = sd_bus_message_exit_container(m);
if (r < 0)
return bus_log_parse_error(r);
return 1;
}
typedef struct UnitCondition {
char *name;
char *param;
bool trigger;
bool negate;
int tristate;
LIST_FIELDS(struct UnitCondition, conditions);
} UnitCondition;
static void unit_condition_free(UnitCondition *c) {
if (!c)
return;
free(c->name);
free(c->param);
free(c);
}
DEFINE_TRIVIAL_CLEANUP_FUNC(UnitCondition*, unit_condition_free);
typedef struct UnitStatusInfo {
const char *id;
const char *load_state;
const char *active_state;
const char *sub_state;
const char *unit_file_state;
const char *unit_file_preset;
const char *description;
const char *following;
char **documentation;
const char *fragment_path;
const char *source_path;
const char *control_group;
char **dropin_paths;
const char *load_error;
const char *result;
usec_t inactive_exit_timestamp;
usec_t inactive_exit_timestamp_monotonic;
usec_t active_enter_timestamp;
usec_t active_exit_timestamp;
usec_t inactive_enter_timestamp;
bool need_daemon_reload;
bool transient;
/* Service */
pid_t main_pid;
pid_t control_pid;
const char *status_text;
const char *pid_file;
bool running:1;
int status_errno;
usec_t start_timestamp;
usec_t exit_timestamp;
int exit_code, exit_status;
usec_t condition_timestamp;
bool condition_result;
LIST_HEAD(UnitCondition, conditions);
usec_t assert_timestamp;
bool assert_result;
bool failed_assert_trigger;
bool failed_assert_negate;
const char *failed_assert;
const char *failed_assert_parameter;
usec_t next_elapse_real;
usec_t next_elapse_monotonic;
/* Socket */
unsigned n_accepted;
unsigned n_connections;
bool accept;
/* Pairs of type, path */
char **listen;
/* Device */
const char *sysfs_path;
/* Mount, Automount */
const char *where;
/* Swap */
const char *what;
/* CGroup */
uint64_t memory_current;
uint64_t memory_low;
uint64_t memory_high;
uint64_t memory_max;
uint64_t memory_swap_max;
uint64_t memory_limit;
uint64_t cpu_usage_nsec;
uint64_t tasks_current;
uint64_t tasks_max;
uint64_t ip_ingress_bytes;
uint64_t ip_egress_bytes;
LIST_HEAD(ExecStatusInfo, exec);
} UnitStatusInfo;
static void unit_status_info_free(UnitStatusInfo *info) {
ExecStatusInfo *p;
UnitCondition *c;
strv_free(info->documentation);
strv_free(info->dropin_paths);
strv_free(info->listen);
while ((c = info->conditions)) {
LIST_REMOVE(conditions, info->conditions, c);
unit_condition_free(c);
}
while ((p = info->exec)) {
LIST_REMOVE(exec, info->exec, p);
exec_status_info_free(p);
}
}
static void print_status_info(
sd_bus *bus,
UnitStatusInfo *i,
bool *ellipsized) {
ExecStatusInfo *p;
const char *active_on, *active_off, *on, *off, *ss;
usec_t timestamp;
char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1;
char since2[FORMAT_TIMESTAMP_MAX], *s2;
const char *path;
char **t, **t2;
int r;
assert(i);
/* This shows pretty information about a unit. See
* print_property() for a low-level property printer */
if (streq_ptr(i->active_state, "failed")) {
active_on = ansi_highlight_red();
active_off = ansi_normal();
} else if (STRPTR_IN_SET(i->active_state, "active", "reloading")) {
active_on = ansi_highlight_green();
active_off = ansi_normal();
} else
active_on = active_off = "";
printf("%s%s%s %s", active_on, special_glyph(BLACK_CIRCLE), active_off, strna(i->id));
if (i->description && !streq_ptr(i->id, i->description))
printf(" - %s", i->description);
printf("\n");
if (i->following)
printf(" Follow: unit currently follows state of %s\n", i->following);
if (streq_ptr(i->load_state, "error")) {
on = ansi_highlight_red();
off = ansi_normal();
} else
on = off = "";
path = i->source_path ? i->source_path : i->fragment_path;
if (i->load_error != 0)
printf(" Loaded: %s%s%s (Reason: %s)\n",
on, strna(i->load_state), off, i->load_error);
else if (path && !isempty(i->unit_file_state) && !isempty(i->unit_file_preset) &&
!STR_IN_SET(i->unit_file_state, "generated", "transient"))
printf(" Loaded: %s%s%s (%s; %s; vendor preset: %s)\n",
on, strna(i->load_state), off, path, i->unit_file_state, i->unit_file_preset);
else if (path && !isempty(i->unit_file_state))
printf(" Loaded: %s%s%s (%s; %s)\n",
on, strna(i->load_state), off, path, i->unit_file_state);
else if (path)
printf(" Loaded: %s%s%s (%s)\n",
on, strna(i->load_state), off, path);
else
printf(" Loaded: %s%s%s\n",
on, strna(i->load_state), off);
if (i->transient)
printf("Transient: yes\n");
if (!strv_isempty(i->dropin_paths)) {
_cleanup_free_ char *dir = NULL;
bool last = false;
char ** dropin;
STRV_FOREACH(dropin, i->dropin_paths) {
if (! dir || last) {
printf(dir ? " " : " Drop-In: ");
dir = mfree(dir);
dir = dirname_malloc(*dropin);
if (!dir) {
log_oom();
return;
}
printf("%s\n %s", dir,
special_glyph(TREE_RIGHT));
}
last = ! (*(dropin + 1) && startswith(*(dropin + 1), dir));
printf("%s%s", basename(*dropin), last ? "\n" : ", ");
}
}
ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
if (ss)
printf(" Active: %s%s (%s)%s",
active_on, strna(i->active_state), ss, active_off);
else
printf(" Active: %s%s%s",
active_on, strna(i->active_state), active_off);
if (!isempty(i->result) && !streq(i->result, "success"))
printf(" (Result: %s)", i->result);
timestamp = STRPTR_IN_SET(i->active_state, "active", "reloading") ? i->active_enter_timestamp :
STRPTR_IN_SET(i->active_state, "inactive", "failed") ? i->inactive_enter_timestamp :
STRPTR_IN_SET(i->active_state, "activating") ? i->inactive_exit_timestamp :
i->active_exit_timestamp;
s1 = format_timestamp_relative(since1, sizeof(since1), timestamp);
s2 = format_timestamp(since2, sizeof(since2), timestamp);
if (s1)
printf(" since %s; %s\n", s2, s1);
else if (s2)
printf(" since %s\n", s2);
else
printf("\n");
if (endswith(i->id, ".timer")) {
char tstamp1[FORMAT_TIMESTAMP_RELATIVE_MAX],
tstamp2[FORMAT_TIMESTAMP_MAX];
char *next_rel_time, *next_time;
dual_timestamp nw, next = {i->next_elapse_real,
i->next_elapse_monotonic};
usec_t next_elapse;
printf(" Trigger: ");
dual_timestamp_get(&nw);
next_elapse = calc_next_elapse(&nw, &next);
next_rel_time = format_timestamp_relative(tstamp1,
sizeof(tstamp1),
next_elapse);
next_time = format_timestamp(tstamp2,
sizeof(tstamp2),
next_elapse);
if (next_time && next_rel_time)
printf("%s; %s\n", next_time, next_rel_time);
else
printf("n/a\n");
}
if (!i->condition_result && i->condition_timestamp > 0) {
UnitCondition *c;
int n = 0;
s1 = format_timestamp_relative(since1, sizeof(since1), i->condition_timestamp);
s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
printf("Condition: start %scondition failed%s at %s%s%s\n",
ansi_highlight_yellow(), ansi_normal(),
s2, s1 ? "; " : "", strempty(s1));
LIST_FOREACH(conditions, c, i->conditions)
if (c->tristate < 0)
n++;
LIST_FOREACH(conditions, c, i->conditions)
if (c->tristate < 0)
printf(" %s %s=%s%s%s was not met\n",
--n ? special_glyph(TREE_BRANCH) : special_glyph(TREE_RIGHT),
c->name,
c->trigger ? "|" : "",
c->negate ? "!" : "",
c->param);
}
if (!i->assert_result && i->assert_timestamp > 0) {
s1 = format_timestamp_relative(since1, sizeof(since1), i->assert_timestamp);
s2 = format_timestamp(since2, sizeof(since2), i->assert_timestamp);
printf(" Assert: start %sassertion failed%s at %s%s%s\n",
ansi_highlight_red(), ansi_normal(),
s2, s1 ? "; " : "", strempty(s1));
if (i->failed_assert_trigger)
printf(" none of the trigger assertions were met\n");
else if (i->failed_assert)
printf(" %s=%s%s was not met\n",
i->failed_assert,
i->failed_assert_negate ? "!" : "",
i->failed_assert_parameter);
}
if (i->sysfs_path)
printf(" Device: %s\n", i->sysfs_path);
if (i->where)
printf(" Where: %s\n", i->where);
if (i->what)
printf(" What: %s\n", i->what);
STRV_FOREACH(t, i->documentation)
printf(" %*s %s\n", 9, t == i->documentation ? "Docs:" : "", *t);
STRV_FOREACH_PAIR(t, t2, i->listen)
printf(" %*s %s (%s)\n", 9, t == i->listen ? "Listen:" : "", *t2, *t);
if (i->accept)
printf(" Accepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
LIST_FOREACH(exec, p, i->exec) {
_cleanup_free_ char *argv = NULL;
bool good;
/* Only show exited processes here */
if (p->code == 0)
continue;
argv = strv_join(p->argv, " ");
printf(" Process: "PID_FMT" %s=%s ", p->pid, p->name, strna(argv));
good = is_clean_exit(p->code, p->status, EXIT_CLEAN_DAEMON, NULL);
if (!good) {
on = ansi_highlight_red();
off = ansi_normal();
} else
on = off = "";
printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
if (p->code == CLD_EXITED) {
const char *c;
printf("status=%i", p->status);
c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD);
if (c)
printf("/%s", c);
} else
printf("signal=%s", signal_to_string(p->status));
printf(")%s\n", off);
if (i->main_pid == p->pid &&
i->start_timestamp == p->start_timestamp &&
i->exit_timestamp == p->start_timestamp)
/* Let's not show this twice */
i->main_pid = 0;
if (p->pid == i->control_pid)
i->control_pid = 0;
}
if (i->main_pid > 0 || i->control_pid > 0) {
if (i->main_pid > 0) {
printf(" Main PID: "PID_FMT, i->main_pid);
if (i->running) {
if (arg_transport == BUS_TRANSPORT_LOCAL) {
_cleanup_free_ char *comm = NULL;
(void) get_process_comm(i->main_pid, &comm);
if (comm)
printf(" (%s)", comm);
}
} else if (i->exit_code > 0) {
printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
if (i->exit_code == CLD_EXITED) {
const char *c;
printf("status=%i", i->exit_status);
c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD);
if (c)
printf("/%s", c);
} else
printf("signal=%s", signal_to_string(i->exit_status));
printf(")");
}
}
if (i->control_pid > 0) {
_cleanup_free_ char *c = NULL;
if (i->main_pid > 0)
fputs("; Control PID: ", stdout);
else
fputs("Cntrl PID: ", stdout); /* if first in column, abbreviated so it fits alignment */
printf(PID_FMT, i->control_pid);
if (arg_transport == BUS_TRANSPORT_LOCAL) {
(void) get_process_comm(i->control_pid, &c);
if (c)
printf(" (%s)", c);
}
}
printf("\n");
}
if (i->status_text)
printf(" Status: \"%s\"\n", i->status_text);
if (i->status_errno > 0)
printf(" Error: %i (%s)\n", i->status_errno, strerror(i->status_errno));
if (i->ip_ingress_bytes != (uint64_t) -1 && i->ip_egress_bytes != (uint64_t) -1) {
char buf_in[FORMAT_BYTES_MAX], buf_out[FORMAT_BYTES_MAX];
printf(" IP: %s in, %s out\n",
format_bytes(buf_in, sizeof(buf_in), i->ip_ingress_bytes),
format_bytes(buf_out, sizeof(buf_out), i->ip_egress_bytes));
}
if (i->tasks_current != (uint64_t) -1) {
printf(" Tasks: %" PRIu64, i->tasks_current);
if (i->tasks_max != (uint64_t) -1)
printf(" (limit: %" PRIu64 ")\n", i->tasks_max);
else
printf("\n");
}
if (i->memory_current != (uint64_t) -1) {
char buf[FORMAT_BYTES_MAX];
printf(" Memory: %s", format_bytes(buf, sizeof(buf), i->memory_current));
if (i->memory_low > 0 || i->memory_high != CGROUP_LIMIT_MAX ||
i->memory_max != CGROUP_LIMIT_MAX || i->memory_swap_max != CGROUP_LIMIT_MAX ||
i->memory_limit != CGROUP_LIMIT_MAX) {
const char *prefix = "";
printf(" (");
if (i->memory_low > 0) {
printf("%slow: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_low));
prefix = " ";
}
if (i->memory_high != CGROUP_LIMIT_MAX) {
printf("%shigh: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_high));
prefix = " ";
}
if (i->memory_max != CGROUP_LIMIT_MAX) {
printf("%smax: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_max));
prefix = " ";
}
if (i->memory_swap_max != CGROUP_LIMIT_MAX) {
printf("%sswap max: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_swap_max));
prefix = " ";
}
if (i->memory_limit != CGROUP_LIMIT_MAX) {
printf("%slimit: %s", prefix, format_bytes(buf, sizeof(buf), i->memory_limit));
prefix = " ";
}
printf(")");
}
printf("\n");
}
if (i->cpu_usage_nsec != (uint64_t) -1) {
char buf[FORMAT_TIMESPAN_MAX];
printf(" CPU: %s\n", format_timespan(buf, sizeof(buf), i->cpu_usage_nsec / NSEC_PER_USEC, USEC_PER_MSEC));
}
if (i->control_group) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
static const char prefix[] = " ";
unsigned c;
printf(" CGroup: %s\n", i->control_group);
c = columns();
if (c > sizeof(prefix) - 1)
c -= sizeof(prefix) - 1;
else
c = 0;
r = unit_show_processes(bus, i->id, i->control_group, prefix, c, get_output_flags(), &error);
if (r == -EBADR) {
unsigned k = 0;
pid_t extra[2];
/* Fallback for older systemd versions where the GetUnitProcesses() call is not yet available */
if (i->main_pid > 0)
extra[k++] = i->main_pid;
if (i->control_pid > 0)
extra[k++] = i->control_pid;
show_cgroup_and_extra(SYSTEMD_CGROUP_CONTROLLER, i->control_group, prefix, c, extra, k, get_output_flags());
} else if (r < 0)
log_warning_errno(r, "Failed to dump process list, ignoring: %s", bus_error_message(&error, r));
}
if (i->id && arg_transport == BUS_TRANSPORT_LOCAL)
show_journal_by_unit(
stdout,
i->id,
arg_output,
0,
i->inactive_exit_timestamp_monotonic,
arg_lines,
getuid(),
get_output_flags() | OUTPUT_BEGIN_NEWLINE,
SD_JOURNAL_LOCAL_ONLY,
arg_scope == UNIT_FILE_SYSTEM,
ellipsized);
if (i->need_daemon_reload)
warn_unit_file_changed(i->id);
}
static void show_unit_help(UnitStatusInfo *i) {
char **p;
assert(i);
if (!i->documentation) {
log_info("Documentation for %s not known.", i->id);
return;
}
STRV_FOREACH(p, i->documentation)
if (startswith(*p, "man:"))
show_man_page(*p + 4, false);
else
log_info("Can't show: %s", *p);
}
static int status_property(const char *name, sd_bus_message *m, UnitStatusInfo *i, const char *contents) {
int r;
assert(name);
assert(m);
assert(i);
switch (contents[0]) {
case SD_BUS_TYPE_STRING: {
const char *s;
r = sd_bus_message_read(m, "s", &s);
if (r < 0)
return bus_log_parse_error(r);
if (!isempty(s)) {
if (streq(name, "Id"))
i->id = s;
else if (streq(name, "LoadState"))
i->load_state = s;
else if (streq(name, "ActiveState"))
i->active_state = s;
else if (streq(name, "SubState"))
i->sub_state = s;
else if (streq(name, "Description"))
i->description = s;
else if (streq(name, "FragmentPath"))
i->fragment_path = s;
else if (streq(name, "SourcePath"))
i->source_path = s;
#ifndef NOLEGACY
else if (streq(name, "DefaultControlGroup")) {
const char *e;
e = startswith(s, SYSTEMD_CGROUP_CONTROLLER ":");
if (e)
i->control_group = e;
}
#endif
else if (streq(name, "ControlGroup"))
i->control_group = s;
else if (streq(name, "StatusText"))
i->status_text = s;
else if (streq(name, "PIDFile"))
i->pid_file = s;
else if (streq(name, "SysFSPath"))
i->sysfs_path = s;
else if (streq(name, "Where"))
i->where = s;
else if (streq(name, "What"))
i->what = s;
else if (streq(name, "Following"))
i->following = s;
else if (streq(name, "UnitFileState"))
i->unit_file_state = s;
else if (streq(name, "UnitFilePreset"))
i->unit_file_preset = s;
else if (streq(name, "Result"))
i->result = s;
}
break;
}
case SD_BUS_TYPE_BOOLEAN: {
int b;
r = sd_bus_message_read(m, "b", &b);
if (r < 0)
return bus_log_parse_error(r);
if (streq(name, "Accept"))
i->accept = b;
else if (streq(name, "NeedDaemonReload"))
i->need_daemon_reload = b;
else if (streq(name, "ConditionResult"))
i->condition_result = b;
else if (streq(name, "AssertResult"))
i->assert_result = b;
else if (streq(name, "Transient"))
i->transient = b;
break;
}
case SD_BUS_TYPE_UINT32: {
uint32_t u;
r = sd_bus_message_read(m, "u", &u);
if (r < 0)
return bus_log_parse_error(r);
if (streq(name, "MainPID")) {
if (u > 0) {
i->main_pid = (pid_t) u;
i->running = true;
}
} else if (streq(name, "ControlPID"))
i->control_pid = (pid_t) u;
else if (streq(name, "ExecMainPID")) {
if (u > 0)
i->main_pid = (pid_t) u;
} else if (streq(name, "NAccepted"))
i->n_accepted = u;
else if (streq(name, "NConnections"))
i->n_connections = u;
break;
}
case SD_BUS_TYPE_INT32: {
int32_t j;
r = sd_bus_message_read(m, "i", &j);
if (r < 0)
return bus_log_parse_error(r);
if (streq(name, "ExecMainCode"))
i->exit_code = (int) j;
else if (streq(name, "ExecMainStatus"))
i->exit_status = (int) j;
else if (streq(name, "StatusErrno"))
i->status_errno = (int) j;
break;
}
case SD_BUS_TYPE_UINT64: {
uint64_t u;
r = sd_bus_message_read(m, "t", &u);
if (r < 0)
return bus_log_parse_error(r);
if (streq(name, "ExecMainStartTimestamp"))
i->start_timestamp = (usec_t) u;
else if (streq(name, "ExecMainExitTimestamp"))
i->exit_timestamp = (usec_t) u;
else if (streq(name, "ActiveEnterTimestamp"))
i->active_enter_timestamp = (usec_t) u;
else if (streq(name, "InactiveEnterTimestamp"))
i->inactive_enter_timestamp = (usec_t) u;
else if (streq(name, "InactiveExitTimestamp"))
i->inactive_exit_timestamp = (usec_t) u;
else if (streq(name, "InactiveExitTimestampMonotonic"))
i->inactive_exit_timestamp_monotonic = (usec_t) u;
else if (streq(name, "ActiveExitTimestamp"))
i->active_exit_timestamp = (usec_t) u;
else if (streq(name, "ConditionTimestamp"))
i->condition_timestamp = (usec_t) u;
else if (streq(name, "AssertTimestamp"))
i->assert_timestamp = (usec_t) u;
else if (streq(name, "MemoryCurrent"))
i->memory_current = u;
else if (streq(name, "MemoryLow"))
i->memory_low = u;
else if (streq(name, "MemoryHigh"))
i->memory_high = u;
else if (streq(name, "MemoryMax"))
i->memory_max = u;
else if (streq(name, "MemorySwapMax"))
i->memory_swap_max = u;
else if (streq(name, "MemoryLimit"))
i->memory_limit = u;
else if (streq(name, "TasksCurrent"))
i->tasks_current = u;
else if (streq(name, "TasksMax"))
i->tasks_max = u;
else if (streq(name, "CPUUsageNSec"))
i->cpu_usage_nsec = u;
else if (streq(name, "NextElapseUSecMonotonic"))
i->next_elapse_monotonic = u;
else if (streq(name, "NextElapseUSecRealtime"))
i->next_elapse_real = u;
else if (streq(name, "IPIngressBytes"))
i->ip_ingress_bytes = u;
else if (streq(name, "IPEgressBytes"))
i->ip_egress_bytes = u;
break;
}
case SD_BUS_TYPE_ARRAY:
if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && startswith(name, "Exec")) {
_cleanup_free_ ExecStatusInfo *info = NULL;
r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sasbttttuii)");
if (r < 0)
return bus_log_parse_error(r);
info = new0(ExecStatusInfo, 1);
if (!info)
return log_oom();
while ((r = exec_status_info_deserialize(m, info)) > 0) {
info->name = strdup(name);
if (!info->name)
return log_oom();
LIST_PREPEND(exec, i->exec, info);
info = new0(ExecStatusInfo, 1);
if (!info)
return log_oom();
}
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(m);
if (r < 0)
return bus_log_parse_error(r);
return 0;
} else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Listen")) {
const char *type, *path;
r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0) {
r = strv_extend(&i->listen, type);
if (r < 0)
return r;
r = strv_extend(&i->listen, path);
if (r < 0)
return r;
}
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(m);
if (r < 0)
return bus_log_parse_error(r);
return 0;
} else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "DropInPaths")) {
r = sd_bus_message_read_strv(m, &i->dropin_paths);
if (r < 0)
return bus_log_parse_error(r);
} else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "Documentation")) {
r = sd_bus_message_read_strv(m, &i->documentation);
if (r < 0)
return bus_log_parse_error(r);
} else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Conditions")) {
const char *cond, *param;
int trigger, negate;
int32_t state;
r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sbbsi)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_read(m, "(sbbsi)", &cond, &trigger, &negate, &param, &state)) > 0) {
_cleanup_(unit_condition_freep) UnitCondition *c = NULL;
log_debug("%s trigger=%d negate=%d %s →%d", cond, trigger, negate, param, state);
c = new0(UnitCondition, 1);
if (!c)
return log_oom();
c->name = strdup(cond);
c->param = strdup(param);
if (!c->name || !c->param)
return log_oom();
c->trigger = trigger;
c->negate = negate;
c->tristate = state;
LIST_PREPEND(conditions, i->conditions, c);
c = NULL;
}
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(m);
if (r < 0)
return bus_log_parse_error(r);
} else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Asserts")) {
const char *cond, *param;
int trigger, negate;
int32_t state;
r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sbbsi)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_read(m, "(sbbsi)", &cond, &trigger, &negate, &param, &state)) > 0) {
log_debug("%s %d %d %s %d", cond, trigger, negate, param, state);
if (state < 0 && (!trigger || !i->failed_assert)) {
i->failed_assert = cond;
i->failed_assert_trigger = trigger;
i->failed_assert_negate = negate;
i->failed_assert_parameter = param;
}
}
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(m);
if (r < 0)
return bus_log_parse_error(r);
} else
goto skip;
break;
case SD_BUS_TYPE_STRUCT_BEGIN:
if (streq(name, "LoadError")) {
const char *n, *message;
r = sd_bus_message_read(m, "(ss)", &n, &message);
if (r < 0)
return bus_log_parse_error(r);
if (!isempty(message))
i->load_error = message;
} else
goto skip;
break;
default:
goto skip;
}
return 0;
skip:
r = sd_bus_message_skip(m, contents);
if (r < 0)
return bus_log_parse_error(r);
return 0;
}
#define print_prop(name, fmt, ...) \
do { \
if (arg_value) \
printf(fmt "\n", __VA_ARGS__); \
else \
printf("%s=" fmt "\n", name, __VA_ARGS__); \
} while (0)
static int print_property(const char *name, sd_bus_message *m, const char *contents) {
int r;
assert(name);
assert(m);
/* This is a low-level property printer, see
* print_status_info() for the nicer output */
if (arg_properties && !strv_find(arg_properties, name)) {
/* skip what we didn't read */
r = sd_bus_message_skip(m, contents);
return r;
}
switch (contents[0]) {
case SD_BUS_TYPE_STRUCT_BEGIN:
if (contents[1] == SD_BUS_TYPE_UINT32 && streq(name, "Job")) {
uint32_t u;
r = sd_bus_message_read(m, "(uo)", &u, NULL);
if (r < 0)
return bus_log_parse_error(r);
if (u > 0)
print_prop(name, "%"PRIu32, u);
else if (arg_all)
print_prop(name, "%s", "");
return 0;
} else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "Unit")) {
const char *s;
r = sd_bus_message_read(m, "(so)", &s, NULL);
if (r < 0)
return bus_log_parse_error(r);
if (arg_all || !isempty(s))
print_prop(name, "%s", s);
return 0;
} else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "LoadError")) {
const char *a = NULL, *b = NULL;
r = sd_bus_message_read(m, "(ss)", &a, &b);
if (r < 0)
return bus_log_parse_error(r);
if (arg_all || !isempty(a) || !isempty(b))
print_prop(name, "%s \"%s\"", strempty(a), strempty(b));
return 0;
} else if (streq_ptr(name, "SystemCallFilter")) {
_cleanup_strv_free_ char **l = NULL;
int whitelist;
r = sd_bus_message_enter_container(m, 'r', "bas");
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_read(m, "b", &whitelist);
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_read_strv(m, &l);
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(m);
if (r < 0)
return bus_log_parse_error(r);
if (arg_all || whitelist || !strv_isempty(l)) {
bool first = true;
char **i;
if (!arg_value) {
fputs(name, stdout);
fputc('=', stdout);
}
if (!whitelist)
fputc('~', stdout);
STRV_FOREACH(i, l) {
if (first)
first = false;
else
fputc(' ', stdout);
fputs(*i, stdout);
}
fputc('\n', stdout);
}
return 0;
}
break;
case SD_BUS_TYPE_ARRAY:
if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "EnvironmentFiles")) {
const char *path;
int ignore;
r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sb)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_read(m, "(sb)", &path, &ignore)) > 0)
print_prop("EnvironmentFile", "%s (ignore_errors=%s)", path, yes_no(ignore));
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(m);
if (r < 0)
return bus_log_parse_error(r);
return 0;
} else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Paths")) {
const char *type, *path;
r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0)
print_prop(type, "%s", path);
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(m);
if (r < 0)
return bus_log_parse_error(r);
return 0;
} else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Listen")) {
const char *type, *path;
r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0)
if (arg_value)
puts(path);
else
printf("Listen%s=%s\n", type, path);
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(m);
if (r < 0)
return bus_log_parse_error(r);
return 0;
} else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Timers")) {
const char *base;
uint64_t value, next_elapse;
r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(stt)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_read(m, "(stt)", &base, &value, &next_elapse)) > 0) {
char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
print_prop(base, "{ value=%s ; next_elapse=%s }",
format_timespan(timespan1, sizeof(timespan1), value, 0),
format_timespan(timespan2, sizeof(timespan2), next_elapse, 0));
}
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(m);
if (r < 0)
return bus_log_parse_error(r);
return 0;
} else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && startswith(name, "Exec")) {
ExecStatusInfo info = {};
r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sasbttttuii)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = exec_status_info_deserialize(m, &info)) > 0) {
char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
_cleanup_free_ char *tt;
tt = strv_join(info.argv, " ");
print_prop(name,
"{ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid="PID_FMT" ; code=%s ; status=%i%s%s }",
strna(info.path),
strna(tt),
yes_no(info.ignore),
strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
info.pid,
sigchld_code_to_string(info.code),
info.status,
info.code == CLD_EXITED ? "" : "/",
strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
free(info.path);
strv_free(info.argv);
zero(info);
}
r = sd_bus_message_exit_container(m);
if (r < 0)
return bus_log_parse_error(r);
return 0;
} else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "DeviceAllow")) {
const char *path, *rwm;
r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_read(m, "(ss)", &path, &rwm)) > 0)
print_prop(name, "%s %s", strna(path), strna(rwm));
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(m);
if (r < 0)
return bus_log_parse_error(r);
return 0;
} else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN &&
STR_IN_SET(name, "IODeviceWeight", "BlockIODeviceWeight")) {
const char *path;
uint64_t weight;
r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(st)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_read(m, "(st)", &path, &weight)) > 0)
print_prop(name, "%s %"PRIu64, strna(path), weight);
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(m);
if (r < 0)
return bus_log_parse_error(r);
return 0;
} else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN &&
(cgroup_io_limit_type_from_string(name) >= 0 ||
STR_IN_SET(name, "BlockIOReadBandwidth", "BlockIOWriteBandwidth"))) {
const char *path;
uint64_t bandwidth;
r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(st)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_read(m, "(st)", &path, &bandwidth)) > 0)
print_prop(name, "%s %"PRIu64, strna(path), bandwidth);
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(m);
if (r < 0)
return bus_log_parse_error(r);
return 0;
} else if (contents[1] == SD_BUS_TYPE_BYTE && streq(name, "StandardInputData")) {
_cleanup_free_ char *h = NULL;
const void *p;
size_t sz;
ssize_t n;
r = sd_bus_message_read_array(m, 'y', &p, &sz);
if (r < 0)
return bus_log_parse_error(r);
n = base64mem(p, sz, &h);
if (n < 0)
return log_oom();
print_prop(name, "%s", h);
return 0;
}
break;
}
r = bus_print_property(name, m, arg_value, arg_all);
if (r < 0)
return bus_log_parse_error(r);
if (r == 0) {
r = sd_bus_message_skip(m, contents);
if (r < 0)
return bus_log_parse_error(r);
if (arg_all)
printf("%s=[unprintable]\n", name);
}
return 0;
}
static int show_one(
const char *verb,
sd_bus *bus,
const char *path,
const char *unit,
bool show_properties,
bool *new_line,
bool *ellipsized) {
static const struct bus_properties_map property_map[] = {
{ "LoadState", "s", map_string_no_copy, offsetof(UnitStatusInfo, load_state) },
{ "ActiveState", "s", map_string_no_copy, offsetof(UnitStatusInfo, active_state) },
{}
};
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_set_free_ Set *found_properties = NULL;
_cleanup_(unit_status_info_free) UnitStatusInfo info = {
.memory_current = (uint64_t) -1,
.memory_high = CGROUP_LIMIT_MAX,
.memory_max = CGROUP_LIMIT_MAX,
.memory_swap_max = CGROUP_LIMIT_MAX,
.memory_limit = (uint64_t) -1,
.cpu_usage_nsec = (uint64_t) -1,
.tasks_current = (uint64_t) -1,
.tasks_max = (uint64_t) -1,
.ip_ingress_bytes = (uint64_t) -1,
.ip_egress_bytes = (uint64_t) -1,
};
int r;
assert(path);
assert(new_line);
log_debug("Showing one %s", path);
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
path,
"org.freedesktop.DBus.Properties",
"GetAll",
&error,
&reply,
"s", "");
if (r < 0)
return log_error_errno(r, "Failed to get properties: %s", bus_error_message(&error, r));
if (unit) {
r = bus_message_map_all_properties(reply, property_map, &error, &info);
if (r < 0)
return log_error_errno(r, "Failed to map properties: %s", bus_error_message(&error, r));
if (streq_ptr(info.load_state, "not-found") && streq_ptr(info.active_state, "inactive")) {
log_full(streq(verb, "status") ? LOG_ERR : LOG_DEBUG,
"Unit %s could not be found.", unit);
if (streq(verb, "status"))
return EXIT_PROGRAM_OR_SERVICES_STATUS_UNKNOWN;
if (!streq(verb, "show"))
return -ENOENT;
}
r = sd_bus_message_rewind(reply, true);
if (r < 0)
return log_error_errno(r, "Failed to rewind: %s", bus_error_message(&error, r));
}
r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{sv}");
if (r < 0)
return bus_log_parse_error(r);
if (*new_line)
printf("\n");
*new_line = true;
while ((r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) {
const char *name, *contents;
r = sd_bus_message_read(reply, "s", &name);
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_peek_type(reply, NULL, &contents);
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_VARIANT, contents);
if (r < 0)
return bus_log_parse_error(r);
if (show_properties) {
r = set_ensure_allocated(&found_properties, &string_hash_ops);
if (r < 0)
return log_oom();
r = set_put(found_properties, name);
if (r < 0 && r != EEXIST)
return log_oom();
r = print_property(name, reply, contents);
} else
r = status_property(name, reply, &info, contents);
if (r < 0)
return r;
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
}
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
r = 0;
if (show_properties) {
char **pp;
STRV_FOREACH(pp, arg_properties)
if (!set_contains(found_properties, *pp))
log_debug("Property %s does not exist.", *pp);
} else if (streq(verb, "help"))
show_unit_help(&info);
else if (streq(verb, "status")) {
print_status_info(bus, &info, ellipsized);
if (info.active_state && !STR_IN_SET(info.active_state, "active", "reloading"))
r = EXIT_PROGRAM_NOT_RUNNING;
else
r = EXIT_PROGRAM_RUNNING_OR_SERVICE_OK;
}
return r;
}
static int get_unit_dbus_path_by_pid(
sd_bus *bus,
uint32_t pid,
char **unit) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
char *u;
int r;
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"GetUnitByPID",
&error,
&reply,
"u", pid);
if (r < 0)
return log_error_errno(r, "Failed to get unit for PID %"PRIu32": %s", pid, bus_error_message(&error, r));
r = sd_bus_message_read(reply, "o", &u);
if (r < 0)
return bus_log_parse_error(r);
u = strdup(u);
if (!u)
return log_oom();
*unit = u;
return 0;
}
static int show_all(
const char* verb,
sd_bus *bus,
bool show_properties,
bool *new_line,
bool *ellipsized) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_free_ UnitInfo *unit_infos = NULL;
const UnitInfo *u;
unsigned c;
int r, ret = 0;
r = get_unit_list(bus, NULL, NULL, &unit_infos, 0, &reply);
if (r < 0)
return r;
pager_open(arg_no_pager, false);
c = (unsigned) r;
qsort_safe(unit_infos, c, sizeof(UnitInfo), compare_unit_info);
for (u = unit_infos; u < unit_infos + c; u++) {
_cleanup_free_ char *p = NULL;
p = unit_dbus_path_from_name(u->id);
if (!p)
return log_oom();
r = show_one(verb, bus, p, u->id, show_properties, new_line, ellipsized);
if (r < 0)
return r;
else if (r > 0 && ret == 0)
ret = r;
}
return ret;
}
static int show_system_status(sd_bus *bus) {
char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], since2[FORMAT_TIMESTAMP_MAX];
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(machine_info_clear) struct machine_info mi = {};
_cleanup_free_ char *hn = NULL;
const char *on, *off;
int r;
hn = gethostname_malloc();
if (!hn)
return log_oom();
r = bus_map_all_properties(bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", machine_info_property_map, &error, &mi);
if (r < 0)
return log_error_errno(r, "Failed to read server status: %s", bus_error_message(&error, r));
if (streq_ptr(mi.state, "degraded")) {
on = ansi_highlight_red();
off = ansi_normal();
} else if (streq_ptr(mi.state, "running")) {
on = ansi_highlight_green();
off = ansi_normal();
} else {
on = ansi_highlight_yellow();
off = ansi_normal();
}
printf("%s%s%s %s\n", on, special_glyph(BLACK_CIRCLE), off, arg_host ? arg_host : hn);
printf(" State: %s%s%s\n",
on, strna(mi.state), off);
printf(" Jobs: %" PRIu32 " queued\n", mi.n_jobs);
printf(" Failed: %" PRIu32 " units\n", mi.n_failed_units);
printf(" Since: %s; %s\n",
format_timestamp(since2, sizeof(since2), mi.timestamp),
format_timestamp_relative(since1, sizeof(since1), mi.timestamp));
printf(" CGroup: %s\n", mi.control_group ?: "/");
if (IN_SET(arg_transport,
BUS_TRANSPORT_LOCAL,
BUS_TRANSPORT_MACHINE)) {
static const char prefix[] = " ";
unsigned c;
c = columns();
if (c > sizeof(prefix) - 1)
c -= sizeof(prefix) - 1;
else
c = 0;
show_cgroup(SYSTEMD_CGROUP_CONTROLLER, strempty(mi.control_group), prefix, c, get_output_flags());
}
return 0;
}
static int show(int argc, char *argv[], void *userdata) {
bool show_properties, show_status, show_help, new_line = false;
bool ellipsized = false;
int r, ret = 0;
sd_bus *bus;
assert(argv);
show_properties = streq(argv[0], "show");
show_status = streq(argv[0], "status");
show_help = streq(argv[0], "help");
if (show_help && argc <= 1) {
log_error("This command expects one or more unit names. Did you mean --help?");
return -EINVAL;
}
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
pager_open(arg_no_pager, false);
if (show_status)
/* Increase max number of open files to 16K if we can, we
* might needs this when browsing journal files, which might
* be split up into many files. */
setrlimit_closest(RLIMIT_NOFILE, &RLIMIT_MAKE_CONST(16384));
/* If no argument is specified inspect the manager itself */
if (show_properties && argc <= 1)
return show_one(argv[0], bus, "/org/freedesktop/systemd1", NULL, show_properties, &new_line, &ellipsized);
if (show_status && argc <= 1) {
show_system_status(bus);
new_line = true;
if (arg_all)
ret = show_all(argv[0], bus, false, &new_line, &ellipsized);
} else {
_cleanup_free_ char **patterns = NULL;
char **name;
STRV_FOREACH(name, strv_skip(argv, 1)) {
_cleanup_free_ char *path = NULL, *unit = NULL;
uint32_t id;
if (safe_atou32(*name, &id) < 0) {
if (strv_push(&patterns, *name) < 0)
return log_oom();
continue;
} else if (show_properties) {
/* Interpret as job id */
if (asprintf(&path, "/org/freedesktop/systemd1/job/%u", id) < 0)
return log_oom();
} else {
/* Interpret as PID */
r = get_unit_dbus_path_by_pid(bus, id, &path);
if (r < 0) {
ret = r;
continue;
}
r = unit_name_from_dbus_path(path, &unit);
if (r < 0)
return log_oom();
}
r = show_one(argv[0], bus, path, unit, show_properties, &new_line, &ellipsized);
if (r < 0)
return r;
else if (r > 0 && ret == 0)
ret = r;
}
if (!strv_isempty(patterns)) {
_cleanup_strv_free_ char **names = NULL;
r = expand_names(bus, patterns, NULL, &names);
if (r < 0)
return log_error_errno(r, "Failed to expand names: %m");
STRV_FOREACH(name, names) {
_cleanup_free_ char *path;
path = unit_dbus_path_from_name(*name);
if (!path)
return log_oom();
r = show_one(argv[0], bus, path, *name, show_properties, &new_line, &ellipsized);
if (r < 0)
return r;
if (r > 0 && ret == 0)
ret = r;
}
}
}
if (ellipsized && !arg_quiet)
printf("Hint: Some lines were ellipsized, use -l to show in full.\n");
return ret;
}
static int cat_file(const char *filename, bool newline) {
_cleanup_close_ int fd;
fd = open(filename, O_RDONLY|O_CLOEXEC|O_NOCTTY);
if (fd < 0)
return -errno;
printf("%s%s# %s%s\n",
newline ? "\n" : "",
ansi_highlight_blue(),
filename,
ansi_normal());
fflush(stdout);
return copy_bytes(fd, STDOUT_FILENO, (uint64_t) -1, 0);
}
static int cat(int argc, char *argv[], void *userdata) {
_cleanup_lookup_paths_free_ LookupPaths lp = {};
_cleanup_strv_free_ char **names = NULL;
char **name;
sd_bus *bus;
bool first = true;
int r;
if (arg_transport != BUS_TRANSPORT_LOCAL) {
log_error("Cannot remotely cat units.");
return -EINVAL;
}
r = lookup_paths_init(&lp, arg_scope, 0, arg_root);
if (r < 0)
return log_error_errno(r, "Failed to determine unit paths: %m");
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
r = expand_names(bus, strv_skip(argv, 1), NULL, &names);
if (r < 0)
return log_error_errno(r, "Failed to expand names: %m");
pager_open(arg_no_pager, false);
STRV_FOREACH(name, names) {
_cleanup_free_ char *fragment_path = NULL;
_cleanup_strv_free_ char **dropin_paths = NULL;
char **path;
r = unit_find_paths(bus, *name, &lp, &fragment_path, &dropin_paths);
if (r < 0)
return r;
else if (r == 0)
return -ENOENT;
if (first)
first = false;
else
puts("");
if (need_daemon_reload(bus, *name) > 0) /* ignore errors (<0), this is informational output */
fprintf(stderr,
"%s# Warning: %s changed on disk, the version systemd has loaded is outdated.\n"
"%s# This output shows the current version of the unit's original fragment and drop-in files.\n"
"%s# If fragments or drop-ins were added or removed, they are not properly reflected in this output.\n"
"%s# Run 'systemctl%s daemon-reload' to reload units.%s\n",
ansi_highlight_red(),
*name,
ansi_highlight_red(),
ansi_highlight_red(),
ansi_highlight_red(),
arg_scope == UNIT_FILE_SYSTEM ? "" : " --user",
ansi_normal());
if (fragment_path) {
r = cat_file(fragment_path, false);
if (r < 0)
return log_warning_errno(r, "Failed to cat %s: %m", fragment_path);
}
STRV_FOREACH(path, dropin_paths) {
r = cat_file(*path, path == dropin_paths);
if (r < 0)
return log_warning_errno(r, "Failed to cat %s: %m", *path);
}
}
return 0;
}
static int set_property(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_free_ char *n = NULL;
UnitType t;
sd_bus *bus;
int r;
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
polkit_agent_open_maybe();
r = sd_bus_message_new_method_call(
bus,
&m,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"SetUnitProperties");
if (r < 0)
return bus_log_create_error(r);
r = unit_name_mangle(argv[1], UNIT_NAME_NOGLOB, &n);
if (r < 0)
return log_error_errno(r, "Failed to mangle unit name: %m");
t = unit_name_to_type(n);
if (t < 0) {
log_error("Invalid unit type: %s", n);
return -EINVAL;
}
r = sd_bus_message_append(m, "sb", n, arg_runtime);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_open_container(m, SD_BUS_TYPE_ARRAY, "(sv)");
if (r < 0)
return bus_log_create_error(r);
r = bus_append_unit_property_assignment_many(m, t, strv_skip(argv, 2));
if (r < 0)
return r;
r = sd_bus_message_close_container(m);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, 0, &error, NULL);
if (r < 0)
return log_error_errno(r, "Failed to set unit properties on %s: %s", n, bus_error_message(&error, r));
return 0;
}
static int daemon_reload(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
const char *method;
sd_bus *bus;
int r;
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
polkit_agent_open_maybe();
switch (arg_action) {
case ACTION_RELOAD:
method = "Reload";
break;
case ACTION_REEXEC:
method = "Reexecute";
break;
case ACTION_SYSTEMCTL:
method = streq(argv[0], "daemon-reexec") ? "Reexecute" :
/* "daemon-reload" */ "Reload";
break;
default:
assert_not_reached("Unexpected action");
}
r = sd_bus_message_new_method_call(
bus,
&m,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
method);
if (r < 0)
return bus_log_create_error(r);
/* Note we use an extra-long timeout here. This is because a reload or reexec means generators are rerun which
* are timed out after DEFAULT_TIMEOUT_USEC. Let's use twice that time here, so that the generators can have
* their timeout, and for everything else there's the same time budget in place. */
r = sd_bus_call(bus, m, DEFAULT_TIMEOUT_USEC * 2, &error, NULL);
/* On reexecution, we expect a disconnect, not a reply */
if (IN_SET(r, -ETIMEDOUT, -ECONNRESET) && streq(method, "Reexecute"))
r = 0;
if (r < 0 && arg_action == ACTION_SYSTEMCTL)
return log_error_errno(r, "Failed to reload daemon: %s", bus_error_message(&error, r));
/* Note that for the legacy commands (i.e. those with action != ACTION_SYSTEMCTL) we support fallbacks to the
* old ways of doing things, hence don't log any error in that case here. */
return r < 0 ? r : 0;
}
static int trivial_method(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
const char *method;
sd_bus *bus;
int r;
if (arg_dry_run)
return 0;
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
polkit_agent_open_maybe();
method =
streq(argv[0], "clear-jobs") ||
streq(argv[0], "cancel") ? "ClearJobs" :
streq(argv[0], "reset-failed") ? "ResetFailed" :
streq(argv[0], "halt") ? "Halt" :
streq(argv[0], "reboot") ? "Reboot" :
streq(argv[0], "kexec") ? "KExec" :
streq(argv[0], "exit") ? "Exit" :
/* poweroff */ "PowerOff";
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
method,
&error,
NULL,
NULL);
if (r < 0 && arg_action == ACTION_SYSTEMCTL)
return log_error_errno(r, "Failed to execute operation: %s", bus_error_message(&error, r));
/* Note that for the legacy commands (i.e. those with action != ACTION_SYSTEMCTL) we support fallbacks to the
* old ways of doing things, hence don't log any error in that case here. */
return r < 0 ? r : 0;
}
static int reset_failed(int argc, char *argv[], void *userdata) {
_cleanup_strv_free_ char **names = NULL;
sd_bus *bus;
char **name;
int r, q;
if (argc <= 1)
return trivial_method(argc, argv, userdata);
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
polkit_agent_open_maybe();
r = expand_names(bus, strv_skip(argv, 1), NULL, &names);
if (r < 0)
return log_error_errno(r, "Failed to expand names: %m");
STRV_FOREACH(name, names) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
q = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"ResetFailedUnit",
&error,
NULL,
"s", *name);
if (q < 0) {
log_error_errno(q, "Failed to reset failed state of unit %s: %s", *name, bus_error_message(&error, q));
if (r == 0)
r = q;
}
}
return r;
}
static int print_variable(const char *s) {
const char *sep;
_cleanup_free_ char *esc = NULL;
sep = strchr(s, '=');
if (!sep) {
log_error("Invalid environment block");
return -EUCLEAN;
}
esc = shell_maybe_quote(sep + 1, ESCAPE_POSIX);
if (!esc)
return log_oom();
printf("%.*s=%s\n", (int)(sep-s), s, esc);
return 0;
}
static int show_environment(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
const char *text;
sd_bus *bus;
int r;
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
pager_open(arg_no_pager, false);
r = sd_bus_get_property(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"Environment",
&error,
&reply,
"as");
if (r < 0)
return log_error_errno(r, "Failed to get environment: %s", bus_error_message(&error, r));
r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "s");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_read_basic(reply, SD_BUS_TYPE_STRING, &text)) > 0) {
r = print_variable(text);
if (r < 0)
return r;
}
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
return 0;
}
static int switch_root(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_free_ char *cmdline_init = NULL;
const char *root, *init;
sd_bus *bus;
int r;
if (arg_transport != BUS_TRANSPORT_LOCAL) {
log_error("Cannot switch root remotely.");
return -EINVAL;
}
if (argc < 2 || argc > 3) {
log_error("Wrong number of arguments.");
return -EINVAL;
}
root = argv[1];
if (argc >= 3)
init = argv[2];
else {
r = parse_env_file("/proc/cmdline", WHITESPACE,
"init", &cmdline_init,
NULL);
if (r < 0)
log_debug_errno(r, "Failed to parse /proc/cmdline: %m");
init = cmdline_init;
}
init = empty_to_null(init);
if (init) {
const char *root_systemd_path = NULL, *root_init_path = NULL;
root_systemd_path = strjoina(root, "/" SYSTEMD_BINARY_PATH);
root_init_path = strjoina(root, "/", init);
/* If the passed init is actually the same as the
* systemd binary, then let's suppress it. */
if (files_same(root_init_path, root_systemd_path, 0) > 0)
init = NULL;
}
/* Instruct PID1 to exclude us from its killing spree applied during
* the transition. Otherwise we would exit with a failure status even
* though the switch to the new root has succeed. */
argv_cmdline[0] = '@';
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
/* If we are slow to exit after the root switch, the new systemd instance
* will send us a signal to terminate. Just ignore it and exit normally.
* This way the unit does not end up as failed.
*/
r = ignore_signals(SIGTERM, -1);
if (r < 0)
log_warning_errno(r, "Failed to change disposition of SIGTERM to ignore: %m");
log_debug("Switching root - root: %s; init: %s", root, strna(init));
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"SwitchRoot",
&error,
NULL,
"ss", root, init);
if (r < 0) {
(void) default_signals(SIGTERM, -1);
return log_error_errno(r, "Failed to switch root: %s", bus_error_message(&error, r));
}
return 0;
}
static int set_environment(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
const char *method;
sd_bus *bus;
int r;
assert(argc > 1);
assert(argv);
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
polkit_agent_open_maybe();
method = streq(argv[0], "set-environment")
? "SetEnvironment"
: "UnsetEnvironment";
r = sd_bus_message_new_method_call(
bus,
&m,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
method);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append_strv(m, strv_skip(argv, 1));
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, 0, &error, NULL);
if (r < 0)
return log_error_errno(r, "Failed to set environment: %s", bus_error_message(&error, r));
return 0;
}
static int import_environment(int argc, char *argv[], void *userdata) {
_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;
int r;
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
polkit_agent_open_maybe();
r = sd_bus_message_new_method_call(
bus,
&m,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"SetEnvironment");
if (r < 0)
return bus_log_create_error(r);
if (argc < 2)
r = sd_bus_message_append_strv(m, environ);
else {
char **a, **b;
r = sd_bus_message_open_container(m, 'a', "s");
if (r < 0)
return bus_log_create_error(r);
STRV_FOREACH(a, strv_skip(argv, 1)) {
if (!env_name_is_valid(*a)) {
log_error("Not a valid environment variable name: %s", *a);
return -EINVAL;
}
STRV_FOREACH(b, environ) {
const char *eq;
eq = startswith(*b, *a);
if (eq && *eq == '=') {
r = sd_bus_message_append(m, "s", *b);
if (r < 0)
return bus_log_create_error(r);
break;
}
}
}
r = sd_bus_message_close_container(m);
}
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, 0, &error, NULL);
if (r < 0)
return log_error_errno(r, "Failed to import environment: %s", bus_error_message(&error, r));
return 0;
}
static int enable_sysv_units(const char *verb, char **args) {
int r = 0;
#if HAVE_SYSV_COMPAT
_cleanup_lookup_paths_free_ LookupPaths paths = {};
unsigned f = 0;
/* Processes all SysV units, and reshuffles the array so that afterwards only the native units remain */
if (arg_scope != UNIT_FILE_SYSTEM)
return 0;
if (getenv_bool("SYSTEMCTL_SKIP_SYSV") > 0)
return 0;
if (!STR_IN_SET(verb,
"enable",
"disable",
"is-enabled"))
return 0;
r = lookup_paths_init(&paths, arg_scope, LOOKUP_PATHS_EXCLUDE_GENERATED, arg_root);
if (r < 0)
return r;
r = 0;
while (args[f]) {
const char *argv[] = {
ROOTLIBEXECDIR "/systemd-sysv-install",
NULL,
NULL,
NULL,
NULL,
};
_cleanup_free_ char *p = NULL, *q = NULL, *l = NULL;
bool found_native = false, found_sysv;
const char *name;
unsigned c = 1;
pid_t pid;
int j;
name = args[f++];
if (!endswith(name, ".service"))
continue;
if (path_is_absolute(name))
continue;
j = unit_file_exists(arg_scope, &paths, name);
if (j < 0 && !IN_SET(j, -ELOOP, -ERFKILL, -EADDRNOTAVAIL))
return log_error_errno(j, "Failed to lookup unit file state: %m");
found_native = j != 0;
/* If we have both a native unit and a SysV script, enable/disable them both (below); for is-enabled,
* prefer the native unit */
if (found_native && streq(verb, "is-enabled"))
continue;
p = path_join(arg_root, SYSTEM_SYSVINIT_PATH, name);
if (!p)
return log_oom();
p[strlen(p) - STRLEN(".service")] = 0;
found_sysv = access(p, F_OK) >= 0;
if (!found_sysv)
continue;
if (!arg_quiet) {
if (found_native)
log_info("Synchronizing state of %s with SysV service script with %s.", name, argv[0]);
else
log_info("%s is not a native service, redirecting to systemd-sysv-install.", name);
}
if (!isempty(arg_root))
argv[c++] = q = strappend("--root=", arg_root);
argv[c++] = verb;
argv[c++] = basename(p);
argv[c] = NULL;
l = strv_join((char**)argv, " ");
if (!l)
return log_oom();
if (!arg_quiet)
log_info("Executing: %s", l);
j = safe_fork("(sysv-install)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_LOG, &pid);
if (j < 0)
return j;
if (j == 0) {
/* Child */
execv(argv[0], (char**) argv);
log_error_errno(errno, "Failed to execute %s: %m", argv[0]);
_exit(EXIT_FAILURE);
}
j = wait_for_terminate_and_check("sysv-install", pid, WAIT_LOG_ABNORMAL);
if (j < 0)
return j;
if (streq(verb, "is-enabled")) {
if (j == EXIT_SUCCESS) {
if (!arg_quiet)
puts("enabled");
r = 1;
} else {
if (!arg_quiet)
puts("disabled");
}
} else if (j != EXIT_SUCCESS)
return -EBADE; /* We don't warn here, under the assumption the script already showed an explanation */
if (found_native)
continue;
/* Remove this entry, so that we don't try enabling it as native unit */
assert(f > 0);
f--;
assert(args[f] == name);
strv_remove(args, name);
}
#endif
return r;
}
static int mangle_names(char **original_names, char ***mangled_names) {
char **i, **l, **name;
int r;
l = i = new(char*, strv_length(original_names) + 1);
if (!l)
return log_oom();
STRV_FOREACH(name, original_names) {
/* When enabling units qualified path names are OK,
* too, hence allow them explicitly. */
if (is_path(*name)) {
*i = strdup(*name);
if (!*i) {
strv_free(l);
return log_oom();
}
} else {
r = unit_name_mangle(*name, UNIT_NAME_NOGLOB, i);
if (r < 0) {
*i = NULL;
strv_free(l);
return log_error_errno(r, "Failed to mangle unit name: %m");
}
}
i++;
}
*i = NULL;
*mangled_names = l;
return 0;
}
static int normalize_filenames(char **names) {
char **u;
int r;
STRV_FOREACH(u, names)
if (!path_is_absolute(*u)) {
char* normalized_path;
if (!isempty(arg_root)) {
log_error("Non-absolute paths are not allowed when --root is used: %s", *u);
return -EINVAL;
}
if (!strchr(*u,'/')) {
log_error("Link argument does contain at least one directory separator: %s", *u);
return -EINVAL;
}
r = path_make_absolute_cwd(*u, &normalized_path);
if (r < 0)
return r;
free_and_replace(*u, normalized_path);
}
return 0;
}
static int normalize_names(char **names, bool warn_if_path) {
char **u;
bool was_path = false;
STRV_FOREACH(u, names) {
int r;
if (!is_path(*u))
continue;
r = free_and_strdup(u, basename(*u));
if (r < 0)
return log_error_errno(r, "Failed to normalize unit file path: %m");
was_path = true;
}
if (warn_if_path && was_path)
log_warning("Warning: Can't execute disable on the unit file path. Proceeding with the unit name.");
return 0;
}
static int unit_exists(LookupPaths *lp, const char *unit) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_free_ char *path = NULL;
static const struct bus_properties_map property_map[] = {
{ "LoadState", "s", map_string_no_copy, offsetof(UnitStatusInfo, load_state) },
{ "ActiveState", "s", map_string_no_copy, offsetof(UnitStatusInfo, active_state)},
{},
};
UnitStatusInfo info = {};
sd_bus *bus;
int r;
if (unit_name_is_valid(unit, UNIT_NAME_TEMPLATE))
return unit_find_template_path(unit, lp, NULL, NULL);
path = unit_dbus_path_from_name(unit);
if (!path)
return log_oom();
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
path,
"org.freedesktop.DBus.Properties",
"GetAll",
&error,
&reply,
"s", "");
if (r < 0)
return log_error_errno(r, "Failed to get properties: %s", bus_error_message(&error, r));
r = bus_message_map_all_properties(reply, property_map, &error, &info);
if (r < 0)
return log_error_errno(r, "Failed to map properties: %s", bus_error_message(&error, r));
return !streq_ptr(info.load_state, "not-found") || !streq_ptr(info.active_state, "inactive");
}
static int enable_unit(int argc, char *argv[], void *userdata) {
_cleanup_strv_free_ char **names = NULL;
const char *verb = argv[0];
UnitFileChange *changes = NULL;
unsigned n_changes = 0;
int carries_install_info = -1;
bool ignore_carries_install_info = arg_quiet;
int r;
if (!argv[1])
return 0;
r = mangle_names(strv_skip(argv, 1), &names);
if (r < 0)
return r;
r = enable_sysv_units(verb, names);
if (r < 0)
return r;
/* If the operation was fully executed by the SysV compat, let's finish early */
if (strv_isempty(names)) {
if (arg_no_reload || install_client_side())
return 0;
return daemon_reload(argc, argv, userdata);
}
if (streq(verb, "disable")) {
r = normalize_names(names, true);
if (r < 0)
return r;
}
if (streq(verb, "link")) {
r = normalize_filenames(names);
if (r < 0)
return r;
}
if (install_client_side()) {
UnitFileFlags flags;
flags = args_to_flags();
if (streq(verb, "enable")) {
r = unit_file_enable(arg_scope, flags, arg_root, names, &changes, &n_changes);
carries_install_info = r;
} else if (streq(verb, "disable"))
r = unit_file_disable(arg_scope, flags, arg_root, names, &changes, &n_changes);
else if (streq(verb, "reenable")) {
r = unit_file_reenable(arg_scope, flags, arg_root, names, &changes, &n_changes);
carries_install_info = r;
} else if (streq(verb, "link"))
r = unit_file_link(arg_scope, flags, arg_root, names, &changes, &n_changes);
else if (streq(verb, "preset")) {
r = unit_file_preset(arg_scope, flags, arg_root, names, arg_preset_mode, &changes, &n_changes);
} else if (streq(verb, "mask"))
r = unit_file_mask(arg_scope, flags, arg_root, names, &changes, &n_changes);
else if (streq(verb, "unmask"))
r = unit_file_unmask(arg_scope, flags, arg_root, names, &changes, &n_changes);
else if (streq(verb, "revert"))
r = unit_file_revert(arg_scope, arg_root, names, &changes, &n_changes);
else
assert_not_reached("Unknown verb");
unit_file_dump_changes(r, verb, changes, n_changes, arg_quiet);
if (r < 0)
goto finish;
r = 0;
} else {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL, *m = NULL;
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
bool expect_carries_install_info = false;
bool send_runtime = true, send_force = true, send_preset_mode = false;
const char *method;
sd_bus *bus;
if (STR_IN_SET(verb, "mask", "unmask")) {
char **name;
_cleanup_lookup_paths_free_ LookupPaths lp = {};
r = lookup_paths_init(&lp, arg_scope, 0, arg_root);
if (r < 0)
return r;
STRV_FOREACH(name, names) {
r = unit_exists(&lp, *name);
if (r < 0)
return r;
if (r == 0)
log_notice("Unit %s does not exist, proceeding anyway.", *names);
}
}
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
polkit_agent_open_maybe();
if (streq(verb, "enable")) {
method = "EnableUnitFiles";
expect_carries_install_info = true;
} else if (streq(verb, "disable")) {
method = "DisableUnitFiles";
send_force = false;
} else if (streq(verb, "reenable")) {
method = "ReenableUnitFiles";
expect_carries_install_info = true;
} else if (streq(verb, "link"))
method = "LinkUnitFiles";
else if (streq(verb, "preset")) {
if (arg_preset_mode != UNIT_FILE_PRESET_FULL) {
method = "PresetUnitFilesWithMode";
send_preset_mode = true;
} else
method = "PresetUnitFiles";
expect_carries_install_info = true;
ignore_carries_install_info = true;
} else if (streq(verb, "mask"))
method = "MaskUnitFiles";
else if (streq(verb, "unmask")) {
method = "UnmaskUnitFiles";
send_force = false;
} else if (streq(verb, "revert")) {
method = "RevertUnitFiles";
send_runtime = send_force = false;
} else
assert_not_reached("Unknown verb");
r = sd_bus_message_new_method_call(
bus,
&m,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
method);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append_strv(m, names);
if (r < 0)
return bus_log_create_error(r);
if (send_preset_mode) {
r = sd_bus_message_append(m, "s", unit_file_preset_mode_to_string(arg_preset_mode));
if (r < 0)
return bus_log_create_error(r);
}
if (send_runtime) {
r = sd_bus_message_append(m, "b", arg_runtime);
if (r < 0)
return bus_log_create_error(r);
}
if (send_force) {
r = sd_bus_message_append(m, "b", arg_force);
if (r < 0)
return bus_log_create_error(r);
}
r = sd_bus_call(bus, m, 0, &error, &reply);
if (r < 0)
return log_error_errno(r, "Failed to %s unit: %s", verb, bus_error_message(&error, r));
if (expect_carries_install_info) {
r = sd_bus_message_read(reply, "b", &carries_install_info);
if (r < 0)
return bus_log_parse_error(r);
}
r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet, &changes, &n_changes);
if (r < 0)
goto finish;
/* Try to reload if enabled */
if (!arg_no_reload)
r = daemon_reload(argc, argv, userdata);
else
r = 0;
}
if (carries_install_info == 0 && !ignore_carries_install_info)
log_warning("The unit files have no installation config (WantedBy, RequiredBy, Also, Alias\n"
"settings in the [Install] section, and DefaultInstance for template units).\n"
"This means they are not meant to be enabled using systemctl.\n"
"Possible reasons for having this kind of units are:\n"
"1) A unit may be statically enabled by being symlinked from another unit's\n"
" .wants/ or .requires/ directory.\n"
"2) A unit's purpose may be to act as a helper for some other unit which has\n"
" a requirement dependency on it.\n"
"3) A unit may be started when needed via activation (socket, path, timer,\n"
" D-Bus, udev, scripted systemctl call, ...).\n"
"4) In case of template units, the unit is meant to be enabled with some\n"
" instance name specified.");
if (arg_now && STR_IN_SET(argv[0], "enable", "disable", "mask")) {
sd_bus *bus;
unsigned len, i;
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
goto finish;
len = strv_length(names);
{
char *new_args[len + 2];
new_args[0] = (char*) (streq(argv[0], "enable") ? "start" : "stop");
for (i = 0; i < len; i++)
new_args[i + 1] = basename(names[i]);
new_args[i + 1] = NULL;
r = start_unit(len + 1, new_args, userdata);
}
}
finish:
unit_file_changes_free(changes, n_changes);
return r;
}
static int add_dependency(int argc, char *argv[], void *userdata) {
_cleanup_strv_free_ char **names = NULL;
_cleanup_free_ char *target = NULL;
const char *verb = argv[0];
UnitFileChange *changes = NULL;
unsigned n_changes = 0;
UnitDependency dep;
int r = 0;
if (!argv[1])
return 0;
r = unit_name_mangle_with_suffix(argv[1], UNIT_NAME_NOGLOB, ".target", &target);
if (r < 0)
return log_error_errno(r, "Failed to mangle unit name: %m");
r = mangle_names(strv_skip(argv, 2), &names);
if (r < 0)
return r;
if (streq(verb, "add-wants"))
dep = UNIT_WANTS;
else if (streq(verb, "add-requires"))
dep = UNIT_REQUIRES;
else
assert_not_reached("Unknown verb");
if (install_client_side()) {
r = unit_file_add_dependency(arg_scope, args_to_flags(), arg_root, names, target, dep, &changes, &n_changes);
unit_file_dump_changes(r, "add dependency on", changes, n_changes, arg_quiet);
if (r > 0)
r = 0;
} else {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL, *m = NULL;
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
sd_bus *bus;
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
polkit_agent_open_maybe();
r = sd_bus_message_new_method_call(
bus,
&m,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"AddDependencyUnitFiles");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append_strv(m, names);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append(m, "ssbb", target, unit_dependency_to_string(dep), arg_runtime, arg_force);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, 0, &error, &reply);
if (r < 0)
return log_error_errno(r, "Failed to add dependency: %s", bus_error_message(&error, r));
r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet, &changes, &n_changes);
if (r < 0)
goto finish;
if (arg_no_reload) {
r = 0;
goto finish;
}
r = daemon_reload(argc, argv, userdata);
}
finish:
unit_file_changes_free(changes, n_changes);
return r;
}
static int preset_all(int argc, char *argv[], void *userdata) {
UnitFileChange *changes = NULL;
unsigned n_changes = 0;
int r;
if (install_client_side()) {
r = unit_file_preset_all(arg_scope, args_to_flags(), arg_root, arg_preset_mode, &changes, &n_changes);
unit_file_dump_changes(r, "preset", changes, n_changes, arg_quiet);
if (r > 0)
r = 0;
} else {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
sd_bus *bus;
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
polkit_agent_open_maybe();
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"PresetAllUnitFiles",
&error,
&reply,
"sbb",
unit_file_preset_mode_to_string(arg_preset_mode),
arg_runtime,
arg_force);
if (r < 0)
return log_error_errno(r, "Failed to preset all units: %s", bus_error_message(&error, r));
r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet, &changes, &n_changes);
if (r < 0)
goto finish;
if (arg_no_reload) {
r = 0;
goto finish;
}
r = daemon_reload(argc, argv, userdata);
}
finish:
unit_file_changes_free(changes, n_changes);
return r;
}
static int show_installation_targets_client_side(const char *name) {
UnitFileChange *changes = NULL;
unsigned n_changes = 0, i;
UnitFileFlags flags;
char **p;
int r;
p = STRV_MAKE(name);
flags = UNIT_FILE_DRY_RUN |
(arg_runtime ? UNIT_FILE_RUNTIME : 0);
r = unit_file_disable(UNIT_FILE_SYSTEM, flags, NULL, p, &changes, &n_changes);
if (r < 0)
return log_error_errno(r, "Failed to get file links for %s: %m", name);
for (i = 0; i < n_changes; i++)
if (changes[i].type == UNIT_FILE_UNLINK)
printf(" %s\n", changes[i].path);
return 0;
}
static int show_installation_targets(sd_bus *bus, const char *name) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
const char *link;
int r;
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"GetUnitFileLinks",
&error,
&reply,
"sb", name, arg_runtime);
if (r < 0)
return log_error_errno(r, "Failed to get unit file links for %s: %s", name, bus_error_message(&error, r));
r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "s");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_read(reply, "s", &link)) > 0)
printf(" %s\n", link);
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
return 0;
}
static int unit_is_enabled(int argc, char *argv[], void *userdata) {
_cleanup_strv_free_ char **names = NULL;
bool enabled;
char **name;
int r;
r = mangle_names(strv_skip(argv, 1), &names);
if (r < 0)
return r;
r = enable_sysv_units(argv[0], names);
if (r < 0)
return r;
enabled = r > 0;
if (install_client_side()) {
STRV_FOREACH(name, names) {
UnitFileState state;
r = unit_file_get_state(arg_scope, arg_root, *name, &state);
if (r < 0)
return log_error_errno(r, "Failed to get unit file state for %s: %m", *name);
if (IN_SET(state,
UNIT_FILE_ENABLED,
UNIT_FILE_ENABLED_RUNTIME,
UNIT_FILE_STATIC,
UNIT_FILE_INDIRECT,
UNIT_FILE_GENERATED))
enabled = true;
if (!arg_quiet) {
puts(unit_file_state_to_string(state));
if (arg_full) {
r = show_installation_targets_client_side(*name);
if (r < 0)
return r;
}
}
}
r = 0;
} else {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
sd_bus *bus;
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
STRV_FOREACH(name, names) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
const char *s;
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"GetUnitFileState",
&error,
&reply,
"s", *name);
if (r < 0)
return log_error_errno(r, "Failed to get unit file state for %s: %s", *name, bus_error_message(&error, r));
r = sd_bus_message_read(reply, "s", &s);
if (r < 0)
return bus_log_parse_error(r);
if (STR_IN_SET(s, "enabled", "enabled-runtime", "static", "indirect", "generated"))
enabled = true;
if (!arg_quiet) {
puts(s);
if (arg_full) {
r = show_installation_targets(bus, *name);
if (r < 0)
return r;
}
}
}
}
return enabled ? EXIT_SUCCESS : EXIT_FAILURE;
}
static int is_system_running(int argc, char *argv[], void *userdata) {
_cleanup_free_ char *state = NULL;
sd_bus *bus;
int r;
if (running_in_chroot() > 0 || (arg_transport == BUS_TRANSPORT_LOCAL && !sd_booted())) {
if (!arg_quiet)
puts("offline");
return EXIT_FAILURE;
}
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
r = sd_bus_get_property_string(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"SystemState",
NULL,
&state);
if (r < 0) {
if (!arg_quiet)
puts("unknown");
return 0;
}
if (!arg_quiet)
puts(state);
return streq(state, "running") ? EXIT_SUCCESS : EXIT_FAILURE;
}
static int create_edit_temp_file(const char *new_path, const char *original_path, char **ret_tmp_fn) {
_cleanup_free_ char *t = NULL;
int r;
assert(new_path);
assert(original_path);
assert(ret_tmp_fn);
r = tempfn_random(new_path, NULL, &t);
if (r < 0)
return log_error_errno(r, "Failed to determine temporary filename for \"%s\": %m", new_path);
r = mkdir_parents(new_path, 0755);
if (r < 0)
return log_error_errno(r, "Failed to create directories for \"%s\": %m", new_path);
r = copy_file(original_path, t, 0, 0644, 0, COPY_REFLINK);
if (r == -ENOENT) {
r = touch(t);
if (r < 0)
return log_error_errno(r, "Failed to create temporary file \"%s\": %m", t);
} else if (r < 0)
return log_error_errno(r, "Failed to create temporary file for \"%s\": %m", new_path);
*ret_tmp_fn = t;
t = NULL;
return 0;
}
static int get_file_to_edit(
const LookupPaths *paths,
const char *name,
char **ret_path) {
_cleanup_free_ char *path = NULL, *run = NULL;
assert(name);
assert(ret_path);
path = strjoin(paths->persistent_config, "/", name);
if (!path)
return log_oom();
if (arg_runtime) {
run = strjoin(paths->runtime_config, "/", name);
if (!run)
return log_oom();
}
if (arg_runtime) {
if (access(path, F_OK) >= 0) {
log_error("Refusing to create \"%s\" because it would be overridden by \"%s\" anyway.", run, path);
return -EEXIST;
}
*ret_path = run;
run = NULL;
} else {
*ret_path = path;
path = NULL;
}
return 0;
}
static int unit_file_create_new(
const LookupPaths *paths,
const char *unit_name,
const char *suffix,
char **ret_new_path,
char **ret_tmp_path) {
char *tmp_new_path, *tmp_tmp_path, *ending;
int r;
assert(unit_name);
assert(ret_new_path);
assert(ret_tmp_path);
ending = strjoina(unit_name, suffix);
r = get_file_to_edit(paths, ending, &tmp_new_path);
if (r < 0)
return r;
r = create_edit_temp_file(tmp_new_path, tmp_new_path, &tmp_tmp_path);
if (r < 0) {
free(tmp_new_path);
return r;
}
*ret_new_path = tmp_new_path;
*ret_tmp_path = tmp_tmp_path;
return 0;
}
static int unit_file_create_copy(
const LookupPaths *paths,
const char *unit_name,
const char *fragment_path,
char **ret_new_path,
char **ret_tmp_path) {
char *tmp_new_path, *tmp_tmp_path;
int r;
assert(fragment_path);
assert(unit_name);
assert(ret_new_path);
assert(ret_tmp_path);
r = get_file_to_edit(paths, unit_name, &tmp_new_path);
if (r < 0)
return r;
if (!path_equal(fragment_path, tmp_new_path) && access(tmp_new_path, F_OK) == 0) {
char response;
r = ask_char(&response, "yn", "\"%s\" already exists. Overwrite with \"%s\"? [(y)es, (n)o] ", tmp_new_path, fragment_path);
if (r < 0) {
free(tmp_new_path);
return r;
}
if (response != 'y') {
log_warning("%s ignored", unit_name);
free(tmp_new_path);
return -EKEYREJECTED;
}
}
r = create_edit_temp_file(tmp_new_path, fragment_path, &tmp_tmp_path);
if (r < 0) {
free(tmp_new_path);
return r;
}
*ret_new_path = tmp_new_path;
*ret_tmp_path = tmp_tmp_path;
return 0;
}
static int run_editor(char **paths) {
int r;
assert(paths);
r = safe_fork("(editor)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_LOG|FORK_WAIT, NULL);
if (r < 0)
return r;
if (r == 0) {
const char **args;
char *editor, **editor_args = NULL;
char **tmp_path, **original_path, *p;
unsigned n_editor_args = 0, i = 1;
size_t argc;
argc = strv_length(paths)/2 + 1;
/* SYSTEMD_EDITOR takes precedence over EDITOR which takes precedence over VISUAL
* If neither SYSTEMD_EDITOR nor EDITOR nor VISUAL are present,
* we try to execute well known editors
*/
editor = getenv("SYSTEMD_EDITOR");
if (!editor)
editor = getenv("EDITOR");
if (!editor)
editor = getenv("VISUAL");
if (!isempty(editor)) {
editor_args = strv_split(editor, WHITESPACE);
if (!editor_args) {
(void) log_oom();
_exit(EXIT_FAILURE);
}
n_editor_args = strv_length(editor_args);
argc += n_editor_args - 1;
}
args = newa(const char*, argc + 1);
if (n_editor_args > 0) {
args[0] = editor_args[0];
for (; i < n_editor_args; i++)
args[i] = editor_args[i];
}
STRV_FOREACH_PAIR(original_path, tmp_path, paths) {
args[i] = *tmp_path;
i++;
}
args[i] = NULL;
if (n_editor_args > 0)
execvp(args[0], (char* const*) args);
FOREACH_STRING(p, "editor", "nano", "vim", "vi") {
args[0] = p;
execvp(p, (char* const*) args);
/* We do not fail if the editor doesn't exist
* because we want to try each one of them before
* failing.
*/
if (errno != ENOENT) {
log_error_errno(errno, "Failed to execute %s: %m", editor);
_exit(EXIT_FAILURE);
}
}
log_error("Cannot edit unit(s), no editor available. Please set either $SYSTEMD_EDITOR, $EDITOR or $VISUAL.");
_exit(EXIT_FAILURE);
}
return 0;
}
static int find_paths_to_edit(sd_bus *bus, char **names, char ***paths) {
_cleanup_lookup_paths_free_ LookupPaths lp = {};
char **name;
int r;
assert(names);
assert(paths);
r = lookup_paths_init(&lp, arg_scope, 0, arg_root);
if (r < 0)
return r;
STRV_FOREACH(name, names) {
_cleanup_free_ char *path = NULL, *new_path = NULL, *tmp_path = NULL, *tmp_name = NULL;
const char *unit_name;
r = unit_find_paths(bus, *name, &lp, &path, NULL);
if (r < 0)
return r;
if (r == 0) {
assert(!path);
if (!arg_force) {
log_error("Run 'systemctl edit%s --force %s' to create a new unit.",
arg_scope == UNIT_FILE_GLOBAL ? " --global" :
arg_scope == UNIT_FILE_USER ? " --user" : "",
*name);
return -ENOENT;
}
/* Create a new unit from scratch */
unit_name = *name;
r = unit_file_create_new(&lp, unit_name,
arg_full ? NULL : ".d/override.conf",
&new_path, &tmp_path);
} else {
assert(path);
unit_name = basename(path);
/* We follow unit aliases, but we need to propagate the instance */
if (unit_name_is_valid(*name, UNIT_NAME_INSTANCE) &&
unit_name_is_valid(unit_name, UNIT_NAME_TEMPLATE)) {
_cleanup_free_ char *instance = NULL;
r = unit_name_to_instance(*name, &instance);
if (r < 0)
return r;
r = unit_name_replace_instance(unit_name, instance, &tmp_name);
if (r < 0)
return r;
unit_name = tmp_name;
}
if (arg_full)
r = unit_file_create_copy(&lp, unit_name, path, &new_path, &tmp_path);
else
r = unit_file_create_new(&lp, unit_name, ".d/override.conf", &new_path, &tmp_path);
}
if (r < 0)
return r;
r = strv_push_pair(paths, new_path, tmp_path);
if (r < 0)
return log_oom();
new_path = tmp_path = NULL;
}
return 0;
}
static int edit(int argc, char *argv[], void *userdata) {
_cleanup_strv_free_ char **names = NULL;
_cleanup_strv_free_ char **paths = NULL;
char **original, **tmp;
sd_bus *bus;
int r;
if (!on_tty()) {
log_error("Cannot edit units if not on a tty.");
return -EINVAL;
}
if (arg_transport != BUS_TRANSPORT_LOCAL) {
log_error("Cannot edit units remotely.");
return -EINVAL;
}
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
r = expand_names(bus, strv_skip(argv, 1), NULL, &names);
if (r < 0)
return log_error_errno(r, "Failed to expand names: %m");
r = find_paths_to_edit(bus, names, &paths);
if (r < 0)
return r;
if (strv_isempty(paths))
return -ENOENT;
r = run_editor(paths);
if (r < 0)
goto end;
STRV_FOREACH_PAIR(original, tmp, paths) {
/* If the temporary file is empty we ignore it. It's
* useful if the user wants to cancel its modification
*/
if (null_or_empty_path(*tmp)) {
log_warning("Editing \"%s\" canceled: temporary file is empty.", *original);
continue;
}
r = rename(*tmp, *original);
if (r < 0) {
r = log_error_errno(errno, "Failed to rename \"%s\" to \"%s\": %m", *tmp, *original);
goto end;
}
}
r = 0;
if (!arg_no_reload && !install_client_side())
r = daemon_reload(argc, argv, userdata);
end:
STRV_FOREACH_PAIR(original, tmp, paths) {
(void) unlink(*tmp);
/* Removing empty dropin dirs */
if (!arg_full) {
_cleanup_free_ char *dir;
dir = dirname_malloc(*original);
if (!dir)
return log_oom();
/* no need to check if the dir is empty, rmdir
* does nothing if it is not the case.
*/
(void) rmdir(dir);
}
}
return r;
}
static void systemctl_help(void) {
pager_open(arg_no_pager, false);
printf("%s [OPTIONS...] {COMMAND} ...\n\n"
"Query or send control commands to the systemd manager.\n\n"
" -h --help Show this help\n"
" --version Show package version\n"
" --system Connect to system manager\n"
" --user Connect to user service manager\n"
" -H --host=[USER@]HOST\n"
" Operate on remote host\n"
" -M --machine=CONTAINER\n"
" Operate on local container\n"
" -t --type=TYPE List units of a particular type\n"
" --state=STATE List units with particular LOAD or SUB or ACTIVE state\n"
" -p --property=NAME Show only properties by this name\n"
" -a --all Show all properties/all units currently in memory,\n"
" including dead/empty ones. To list all units installed on\n"
" the system, use the 'list-unit-files' command instead.\n"
" --failed Same as --state=failed\n"
" -l --full Don't ellipsize unit names on output\n"
" -r --recursive Show unit list of host and local containers\n"
" --reverse Show reverse dependencies with 'list-dependencies'\n"
" --job-mode=MODE Specify how to deal with already queued jobs, when\n"
" queueing a new job\n"
" --show-types When showing sockets, explicitly show their type\n"
" --value When showing properties, only print the value\n"
" -i --ignore-inhibitors\n"
" When shutting down or sleeping, ignore inhibitors\n"
" --kill-who=WHO Who to send signal to\n"
" -s --signal=SIGNAL Which signal to send\n"
" --now Start or stop unit in addition to enabling or disabling it\n"
" --dry-run Only print what would be done\n"
" -q --quiet Suppress output\n"
" --wait For (re)start, wait until service stopped again\n"
" --no-block Do not wait until operation finished\n"
" --no-wall Don't send wall message before halt/power-off/reboot\n"
" --no-reload Don't reload daemon after en-/dis-abling unit files\n"
" --no-legend Do not print a legend (column headers and hints)\n"
" --no-pager Do not pipe output into a pager\n"
" --no-ask-password\n"
" Do not ask for system passwords\n"
" --global Enable/disable/mask unit files globally\n"
" --runtime Enable/disable/mask unit files temporarily until next\n"
" reboot\n"
" -f --force When enabling unit files, override existing symlinks\n"
" When shutting down, execute action immediately\n"
" --preset-mode= Apply only enable, only disable, or all presets\n"
" --root=PATH Enable/disable/mask unit files in the specified root\n"
" directory\n"
" -n --lines=INTEGER Number of journal entries to show\n"
" -o --output=STRING Change journal output mode (short, short-precise,\n"
" short-iso, short-iso-precise, short-full,\n"
" short-monotonic, short-unix,\n"
" verbose, export, json, json-pretty, json-sse, cat)\n"
" --firmware-setup Tell the firmware to show the setup menu on next boot\n"
" --plain Print unit dependencies as a list instead of a tree\n\n"
"Unit Commands:\n"
" list-units [PATTERN...] List units currently in memory\n"
" list-sockets [PATTERN...] List socket units currently in memory, ordered\n"
" by address\n"
" list-timers [PATTERN...] List timer units currently in memory, ordered\n"
" by next elapse\n"
" start NAME... Start (activate) one or more units\n"
" stop NAME... Stop (deactivate) one or more units\n"
" reload NAME... Reload one or more units\n"
" restart NAME... Start or restart one or more units\n"
" try-restart NAME... Restart one or more units if active\n"
" reload-or-restart NAME... Reload one or more units if possible,\n"
" otherwise start or restart\n"
" try-reload-or-restart NAME... If active, reload one or more units,\n"
" if supported, otherwise restart\n"
" isolate NAME Start one unit and stop all others\n"
" kill NAME... Send signal to processes of a unit\n"
" is-active PATTERN... Check whether units are active\n"
" is-failed PATTERN... Check whether units are failed\n"
" status [PATTERN...|PID...] Show runtime status of one or more units\n"
" show [PATTERN...|JOB...] Show properties of one or more\n"
" units/jobs or the manager\n"
" cat PATTERN... Show files and drop-ins of one or more units\n"
" set-property NAME ASSIGNMENT... Sets one or more properties of a unit\n"
" help PATTERN...|PID... Show manual for one or more units\n"
" reset-failed [PATTERN...] Reset failed state for all, one, or more\n"
" units\n"
" list-dependencies [NAME] Recursively show units which are required\n"
" or wanted by this unit or by which this\n"
" unit is required or wanted\n\n"
"Unit File Commands:\n"
" list-unit-files [PATTERN...] List installed unit files\n"
" enable [NAME...|PATH...] Enable one or more unit files\n"
" disable NAME... Disable one or more unit files\n"
" reenable NAME... Reenable one or more unit files\n"
" preset NAME... Enable/disable one or more unit files\n"
" based on preset configuration\n"
" preset-all Enable/disable all unit files based on\n"
" preset configuration\n"
" is-enabled NAME... Check whether unit files are enabled\n"
" mask NAME... Mask one or more units\n"
" unmask NAME... Unmask one or more units\n"
" link PATH... Link one or more units files into\n"
" the search path\n"
" revert NAME... Revert one or more unit files to vendor\n"
" version\n"
" add-wants TARGET NAME... Add 'Wants' dependency for the target\n"
" on specified one or more units\n"
" add-requires TARGET NAME... Add 'Requires' dependency for the target\n"
" on specified one or more units\n"
" edit NAME... Edit one or more unit files\n"
" get-default Get the name of the default target\n"
" set-default NAME Set the default target\n\n"
"Machine Commands:\n"
" list-machines [PATTERN...] List local containers and host\n\n"
"Job Commands:\n"
" list-jobs [PATTERN...] List jobs\n"
" cancel [JOB...] Cancel all, one, or more jobs\n\n"
"Environment Commands:\n"
" show-environment Dump environment\n"
" set-environment NAME=VALUE... Set one or more environment variables\n"
" unset-environment NAME... Unset one or more environment variables\n"
" import-environment [NAME...] Import all or some environment variables\n\n"
"Manager Lifecycle Commands:\n"
" daemon-reload Reload systemd manager configuration\n"
" daemon-reexec Reexecute systemd manager\n\n"
"System Commands:\n"
" is-system-running Check whether system is fully running\n"
" default Enter system default mode\n"
" rescue Enter system rescue mode\n"
" emergency Enter system emergency mode\n"
" halt Shut down and halt the system\n"
" poweroff Shut down and power-off the system\n"
" reboot [ARG] Shut down and reboot the system\n"
" kexec Shut down and reboot the system with kexec\n"
" exit [EXIT_CODE] Request user instance or container exit\n"
" switch-root ROOT [INIT] Change to a different root file system\n"
" suspend Suspend the system\n"
" hibernate Hibernate the system\n"
" hybrid-sleep Hibernate and suspend the system\n",
program_invocation_short_name);
}
static void halt_help(void) {
printf("%s [OPTIONS...]%s\n\n"
"%s the system.\n\n"
" --help Show this help\n"
" --halt Halt the machine\n"
" -p --poweroff Switch off the machine\n"
" --reboot Reboot the machine\n"
" -f --force Force immediate halt/power-off/reboot\n"
" -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
" -d --no-wtmp Don't write wtmp record\n"
" --no-wall Don't send wall message before halt/power-off/reboot\n",
program_invocation_short_name,
arg_action == ACTION_REBOOT ? " [ARG]" : "",
arg_action == ACTION_REBOOT ? "Reboot" :
arg_action == ACTION_POWEROFF ? "Power off" :
"Halt");
}
static void shutdown_help(void) {
printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
"Shut down the system.\n\n"
" --help Show this help\n"
" -H --halt Halt the machine\n"
" -P --poweroff Power-off the machine\n"
" -r --reboot Reboot the machine\n"
" -h Equivalent to --poweroff, overridden by --halt\n"
" -k Don't halt/power-off/reboot, just send warnings\n"
" --no-wall Don't send wall message before halt/power-off/reboot\n"
" -c Cancel a pending shutdown\n",
program_invocation_short_name);
}
static void telinit_help(void) {
printf("%s [OPTIONS...] {COMMAND}\n\n"
"Send control commands to the init daemon.\n\n"
" --help Show this help\n"
" --no-wall Don't send wall message before halt/power-off/reboot\n\n"
"Commands:\n"
" 0 Power-off the machine\n"
" 6 Reboot the machine\n"
" 2, 3, 4, 5 Start runlevelX.target unit\n"
" 1, s, S Enter rescue mode\n"
" q, Q Reload init daemon configuration\n"
" u, U Reexecute init daemon\n",
program_invocation_short_name);
}
static void runlevel_help(void) {
printf("%s [OPTIONS...]\n\n"
"Prints the previous and current runlevel of the init system.\n\n"
" --help Show this help\n",
program_invocation_short_name);
}
static void help_types(void) {
int i;
if (!arg_no_legend)
puts("Available unit types:");
for (i = 0; i < _UNIT_TYPE_MAX; i++)
puts(unit_type_to_string(i));
}
static void help_states(void) {
int i;
if (!arg_no_legend)
puts("Available unit load states:");
for (i = 0; i < _UNIT_LOAD_STATE_MAX; i++)
puts(unit_load_state_to_string(i));
if (!arg_no_legend)
puts("\nAvailable unit active states:");
for (i = 0; i < _UNIT_ACTIVE_STATE_MAX; i++)
puts(unit_active_state_to_string(i));
if (!arg_no_legend)
puts("\nAvailable automount unit substates:");
for (i = 0; i < _AUTOMOUNT_STATE_MAX; i++)
puts(automount_state_to_string(i));
if (!arg_no_legend)
puts("\nAvailable device unit substates:");
for (i = 0; i < _DEVICE_STATE_MAX; i++)
puts(device_state_to_string(i));
if (!arg_no_legend)
puts("\nAvailable mount unit substates:");
for (i = 0; i < _MOUNT_STATE_MAX; i++)
puts(mount_state_to_string(i));
if (!arg_no_legend)
puts("\nAvailable path unit substates:");
for (i = 0; i < _PATH_STATE_MAX; i++)
puts(path_state_to_string(i));
if (!arg_no_legend)
puts("\nAvailable scope unit substates:");
for (i = 0; i < _SCOPE_STATE_MAX; i++)
puts(scope_state_to_string(i));
if (!arg_no_legend)
puts("\nAvailable service unit substates:");
for (i = 0; i < _SERVICE_STATE_MAX; i++)
puts(service_state_to_string(i));
if (!arg_no_legend)
puts("\nAvailable slice unit substates:");
for (i = 0; i < _SLICE_STATE_MAX; i++)
puts(slice_state_to_string(i));
if (!arg_no_legend)
puts("\nAvailable socket unit substates:");
for (i = 0; i < _SOCKET_STATE_MAX; i++)
puts(socket_state_to_string(i));
if (!arg_no_legend)
puts("\nAvailable swap unit substates:");
for (i = 0; i < _SWAP_STATE_MAX; i++)
puts(swap_state_to_string(i));
if (!arg_no_legend)
puts("\nAvailable target unit substates:");
for (i = 0; i < _TARGET_STATE_MAX; i++)
puts(target_state_to_string(i));
if (!arg_no_legend)
puts("\nAvailable timer unit substates:");
for (i = 0; i < _TIMER_STATE_MAX; i++)
puts(timer_state_to_string(i));
}
static int systemctl_parse_argv(int argc, char *argv[]) {
enum {
ARG_FAIL = 0x100,
ARG_REVERSE,
ARG_AFTER,
ARG_BEFORE,
ARG_DRY_RUN,
ARG_SHOW_TYPES,
ARG_IRREVERSIBLE,
ARG_IGNORE_DEPENDENCIES,
ARG_VALUE,
ARG_VERSION,
ARG_USER,
ARG_SYSTEM,
ARG_GLOBAL,
ARG_NO_BLOCK,
ARG_NO_LEGEND,
ARG_NO_PAGER,
ARG_NO_WALL,
ARG_ROOT,
ARG_NO_RELOAD,
ARG_KILL_WHO,
ARG_NO_ASK_PASSWORD,
ARG_FAILED,
ARG_RUNTIME,
ARG_FORCE,
ARG_PLAIN,
ARG_STATE,
ARG_JOB_MODE,
ARG_PRESET_MODE,
ARG_FIRMWARE_SETUP,
ARG_NOW,
ARG_MESSAGE,
ARG_WAIT,
};
static const struct option options[] = {
{ "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, ARG_VERSION },
{ "type", required_argument, NULL, 't' },
{ "property", required_argument, NULL, 'p' },
{ "all", no_argument, NULL, 'a' },
{ "reverse", no_argument, NULL, ARG_REVERSE },
{ "after", no_argument, NULL, ARG_AFTER },
{ "before", no_argument, NULL, ARG_BEFORE },
{ "show-types", no_argument, NULL, ARG_SHOW_TYPES },
{ "failed", no_argument, NULL, ARG_FAILED }, /* compatibility only */
{ "full", no_argument, NULL, 'l' },
{ "job-mode", required_argument, NULL, ARG_JOB_MODE },
{ "fail", no_argument, NULL, ARG_FAIL }, /* compatibility only */
{ "irreversible", no_argument, NULL, ARG_IRREVERSIBLE }, /* compatibility only */
{ "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES }, /* compatibility only */
{ "ignore-inhibitors", no_argument, NULL, 'i' },
{ "value", no_argument, NULL, ARG_VALUE },
{ "user", no_argument, NULL, ARG_USER },
{ "system", no_argument, NULL, ARG_SYSTEM },
{ "global", no_argument, NULL, ARG_GLOBAL },
{ "wait", no_argument, NULL, ARG_WAIT },
{ "no-block", no_argument, NULL, ARG_NO_BLOCK },
{ "no-legend", no_argument, NULL, ARG_NO_LEGEND },
{ "no-pager", no_argument, NULL, ARG_NO_PAGER },
{ "no-wall", no_argument, NULL, ARG_NO_WALL },
{ "dry-run", no_argument, NULL, ARG_DRY_RUN },
{ "quiet", no_argument, NULL, 'q' },
{ "root", required_argument, NULL, ARG_ROOT },
{ "force", no_argument, NULL, ARG_FORCE },
{ "no-reload", no_argument, NULL, ARG_NO_RELOAD },
{ "kill-who", required_argument, NULL, ARG_KILL_WHO },
{ "signal", required_argument, NULL, 's' },
{ "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
{ "host", required_argument, NULL, 'H' },
{ "machine", required_argument, NULL, 'M' },
{ "runtime", no_argument, NULL, ARG_RUNTIME },
{ "lines", required_argument, NULL, 'n' },
{ "output", required_argument, NULL, 'o' },
{ "plain", no_argument, NULL, ARG_PLAIN },
{ "state", required_argument, NULL, ARG_STATE },
{ "recursive", no_argument, NULL, 'r' },
{ "preset-mode", required_argument, NULL, ARG_PRESET_MODE },
{ "firmware-setup", no_argument, NULL, ARG_FIRMWARE_SETUP },
{ "now", no_argument, NULL, ARG_NOW },
{ "message", required_argument, NULL, ARG_MESSAGE },
{}
};
const char *p;
int c, r;
assert(argc >= 0);
assert(argv);
/* we default to allowing interactive authorization only in systemctl (not in the legacy commands) */
arg_ask_password = true;
while ((c = getopt_long(argc, argv, "ht:p:alqfs:H:M:n:o:ir", options, NULL)) >= 0)
switch (c) {
case 'h':
systemctl_help();
return 0;
case ARG_VERSION:
return version();
case 't': {
if (isempty(optarg)) {
log_error("--type= requires arguments.");
return -EINVAL;
}
for (p = optarg;;) {
_cleanup_free_ char *type = NULL;
r = extract_first_word(&p, &type, ",", 0);
if (r < 0)
return log_error_errno(r, "Failed to parse type: %s", optarg);
if (r == 0)
break;
if (streq(type, "help")) {
help_types();
return 0;
}
if (unit_type_from_string(type) >= 0) {
if (strv_push(&arg_types, type) < 0)
return log_oom();
type = NULL;
continue;
}
/* It's much nicer to use --state= for
* load states, but let's support this
* in --types= too for compatibility
* with old versions */
if (unit_load_state_from_string(type) >= 0) {
if (strv_push(&arg_states, type) < 0)
return log_oom();
type = NULL;
continue;
}
log_error("Unknown unit type or load state '%s'.", type);
log_info("Use -t help to see a list of allowed values.");
return -EINVAL;
}
break;
}
case 'p': {
/* Make sure that if the empty property list
was specified, we won't show any properties. */
if (isempty(optarg) && !arg_properties) {
arg_properties = new0(char*, 1);
if (!arg_properties)
return log_oom();
} else
for (p = optarg;;) {
_cleanup_free_ char *prop = NULL;
r = extract_first_word(&p, &prop, ",", 0);
if (r < 0)
return log_error_errno(r, "Failed to parse property: %s", optarg);
if (r == 0)
break;
if (strv_push(&arg_properties, prop) < 0)
return log_oom();
prop = NULL;
}
/* 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_REVERSE:
arg_dependency = DEPENDENCY_REVERSE;
break;
case ARG_AFTER:
arg_dependency = DEPENDENCY_AFTER;
arg_jobs_after = true;
break;
case ARG_BEFORE:
arg_dependency = DEPENDENCY_BEFORE;
arg_jobs_before = true;
break;
case ARG_SHOW_TYPES:
arg_show_types = true;
break;
case ARG_VALUE:
arg_value = true;
break;
case ARG_JOB_MODE:
arg_job_mode = optarg;
break;
case ARG_FAIL:
arg_job_mode = "fail";
break;
case ARG_IRREVERSIBLE:
arg_job_mode = "replace-irreversibly";
break;
case ARG_IGNORE_DEPENDENCIES:
arg_job_mode = "ignore-dependencies";
break;
case ARG_USER:
arg_scope = UNIT_FILE_USER;
break;
case ARG_SYSTEM:
arg_scope = UNIT_FILE_SYSTEM;
break;
case ARG_GLOBAL:
arg_scope = UNIT_FILE_GLOBAL;
break;
case ARG_WAIT:
arg_wait = true;
break;
case ARG_NO_BLOCK:
arg_no_block = true;
break;
case ARG_NO_LEGEND:
arg_no_legend = true;
break;
case ARG_NO_PAGER:
arg_no_pager = true;
break;
case ARG_NO_WALL:
arg_no_wall = true;
break;
case ARG_ROOT:
r = parse_path_argument_and_warn(optarg, false, &arg_root);
if (r < 0)
return r;
break;
case 'l':
arg_full = true;
break;
case ARG_FAILED:
if (strv_extend(&arg_states, "failed") < 0)
return log_oom();
break;
case ARG_DRY_RUN:
arg_dry_run = true;
break;
case 'q':
arg_quiet = true;
break;
case ARG_FORCE:
arg_force++;
break;
case 'f':
arg_force++;
break;
case ARG_NO_RELOAD:
arg_no_reload = true;
break;
case ARG_KILL_WHO:
arg_kill_who = optarg;
break;
case 's':
arg_signal = signal_from_string_try_harder(optarg);
if (arg_signal < 0) {
log_error("Failed to parse signal string %s.", optarg);
return -EINVAL;
}
break;
case ARG_NO_ASK_PASSWORD:
arg_ask_password = false;
break;
case 'H':
arg_transport = BUS_TRANSPORT_REMOTE;
arg_host = optarg;
break;
case 'M':
arg_transport = BUS_TRANSPORT_MACHINE;
arg_host = optarg;
break;
case ARG_RUNTIME:
arg_runtime = true;
break;
case 'n':
if (safe_atou(optarg, &arg_lines) < 0) {
log_error("Failed to parse lines '%s'", optarg);
return -EINVAL;
}
break;
case 'o':
arg_output = output_mode_from_string(optarg);
if (arg_output < 0) {
log_error("Unknown output '%s'.", optarg);
return -EINVAL;
}
break;
case 'i':
arg_ignore_inhibitors = true;
break;
case ARG_PLAIN:
arg_plain = true;
break;
case ARG_FIRMWARE_SETUP:
arg_firmware_setup = true;
break;
case ARG_STATE: {
if (isempty(optarg)) {
log_error("--state= requires arguments.");
return -EINVAL;
}
for (p = optarg;;) {
_cleanup_free_ char *s = NULL;
r = extract_first_word(&p, &s, ",", 0);
if (r < 0)
return log_error_errno(r, "Failed to parse state: %s", optarg);
if (r == 0)
break;
if (streq(s, "help")) {
help_states();
return 0;
}
if (strv_push(&arg_states, s) < 0)
return log_oom();
s = NULL;
}
break;
}
case 'r':
if (geteuid() != 0) {
log_error("--recursive requires root privileges.");
return -EPERM;
}
arg_recursive = true;
break;
case ARG_PRESET_MODE:
arg_preset_mode = unit_file_preset_mode_from_string(optarg);
if (arg_preset_mode < 0) {
log_error("Failed to parse preset mode: %s.", optarg);
return -EINVAL;
}
break;
case ARG_NOW:
arg_now = true;
break;
case ARG_MESSAGE:
if (strv_extend(&arg_wall, optarg) < 0)
return log_oom();
break;
case '?':
return -EINVAL;
default:
assert_not_reached("Unhandled option");
}
if (arg_transport != BUS_TRANSPORT_LOCAL && arg_scope != UNIT_FILE_SYSTEM) {
log_error("Cannot access user instance remotely.");
return -EINVAL;
}
if (arg_wait && arg_no_block) {
log_error("--wait may not be combined with --no-block.");
return -EINVAL;
}
return 1;
}
static int halt_parse_argv(int argc, char *argv[]) {
enum {
ARG_HELP = 0x100,
ARG_HALT,
ARG_REBOOT,
ARG_NO_WALL
};
static const struct option options[] = {
{ "help", no_argument, NULL, ARG_HELP },
{ "halt", no_argument, NULL, ARG_HALT },
{ "poweroff", no_argument, NULL, 'p' },
{ "reboot", no_argument, NULL, ARG_REBOOT },
{ "force", no_argument, NULL, 'f' },
{ "wtmp-only", no_argument, NULL, 'w' },
{ "no-wtmp", no_argument, NULL, 'd' },
{ "no-sync", no_argument, NULL, 'n' },
{ "no-wall", no_argument, NULL, ARG_NO_WALL },
{}
};
int c, r, runlevel;
assert(argc >= 0);
assert(argv);
if (utmp_get_runlevel(&runlevel, NULL) >= 0)
if (IN_SET(runlevel, '0', '6'))
arg_force = 2;
while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0)
switch (c) {
case ARG_HELP:
halt_help();
return 0;
case ARG_HALT:
arg_action = ACTION_HALT;
break;
case 'p':
if (arg_action != ACTION_REBOOT)
arg_action = ACTION_POWEROFF;
break;
case ARG_REBOOT:
arg_action = ACTION_REBOOT;
break;
case 'f':
arg_force = 2;
break;
case 'w':
arg_dry_run = true;
break;
case 'd':
arg_no_wtmp = true;
break;
case 'n':
arg_no_sync = true;
break;
case ARG_NO_WALL:
arg_no_wall = true;
break;
case 'i':
case 'h':
/* Compatibility nops */
break;
case '?':
return -EINVAL;
default:
assert_not_reached("Unhandled option");
}
if (arg_action == ACTION_REBOOT && (argc == optind || argc == optind + 1)) {
r = update_reboot_parameter_and_warn(argc == optind + 1 ? argv[optind] : NULL);
if (r < 0)
return r;
} else if (optind < argc) {
log_error("Too many arguments.");
return -EINVAL;
}
return 1;
}
static int parse_shutdown_time_spec(const char *t, usec_t *_u) {
assert(t);
assert(_u);
if (streq(t, "now"))
*_u = 0;
else if (!strchr(t, ':')) {
uint64_t u;
if (safe_atou64(t, &u) < 0)
return -EINVAL;
*_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
} else {
char *e = NULL;
long hour, minute;
struct tm tm = {};
time_t s;
usec_t n;
errno = 0;
hour = strtol(t, &e, 10);
if (errno > 0 || *e != ':' || hour < 0 || hour > 23)
return -EINVAL;
minute = strtol(e+1, &e, 10);
if (errno > 0 || *e != 0 || minute < 0 || minute > 59)
return -EINVAL;
n = now(CLOCK_REALTIME);
s = (time_t) (n / USEC_PER_SEC);
assert_se(localtime_r(&s, &tm));
tm.tm_hour = (int) hour;
tm.tm_min = (int) minute;
tm.tm_sec = 0;
assert_se(s = mktime(&tm));
*_u = (usec_t) s * USEC_PER_SEC;
while (*_u <= n)
*_u += USEC_PER_DAY;
}
return 0;
}
static int shutdown_parse_argv(int argc, char *argv[]) {
enum {
ARG_HELP = 0x100,
ARG_NO_WALL
};
static const struct option options[] = {
{ "help", no_argument, NULL, ARG_HELP },
{ "halt", no_argument, NULL, 'H' },
{ "poweroff", no_argument, NULL, 'P' },
{ "reboot", no_argument, NULL, 'r' },
{ "kexec", no_argument, NULL, 'K' }, /* not documented extension */
{ "no-wall", no_argument, NULL, ARG_NO_WALL },
{}
};
char **wall = NULL;
int c, r;
assert(argc >= 0);
assert(argv);
while ((c = getopt_long(argc, argv, "HPrhkKat:fFc", options, NULL)) >= 0)
switch (c) {
case ARG_HELP:
shutdown_help();
return 0;
case 'H':
arg_action = ACTION_HALT;
break;
case 'P':
arg_action = ACTION_POWEROFF;
break;
case 'r':
if (kexec_loaded())
arg_action = ACTION_KEXEC;
else
arg_action = ACTION_REBOOT;
break;
case 'K':
arg_action = ACTION_KEXEC;
break;
case 'h':
if (arg_action != ACTION_HALT)
arg_action = ACTION_POWEROFF;
break;
case 'k':
arg_dry_run = true;
break;
case ARG_NO_WALL:
arg_no_wall = true;
break;
case 'a':
case 't': /* Note that we also ignore any passed argument to -t, not just the -t itself */
case 'f':
case 'F':
/* Compatibility nops */
break;
case 'c':
arg_action = ACTION_CANCEL_SHUTDOWN;
break;
case '?':
return -EINVAL;
default:
assert_not_reached("Unhandled option");
}
if (argc > optind && arg_action != ACTION_CANCEL_SHUTDOWN) {
r = parse_shutdown_time_spec(argv[optind], &arg_when);
if (r < 0) {
log_error("Failed to parse time specification: %s", argv[optind]);
return r;
}
} else
arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
if (argc > optind && arg_action == ACTION_CANCEL_SHUTDOWN)
/* No time argument for shutdown cancel */
wall = argv + optind;
else if (argc > optind + 1)
/* We skip the time argument */
wall = argv + optind + 1;
if (wall) {
arg_wall = strv_copy(wall);
if (!arg_wall)
return log_oom();
}
optind = argc;
return 1;
}
static int telinit_parse_argv(int argc, char *argv[]) {
enum {
ARG_HELP = 0x100,
ARG_NO_WALL
};
static const struct option options[] = {
{ "help", no_argument, NULL, ARG_HELP },
{ "no-wall", no_argument, NULL, ARG_NO_WALL },
{}
};
static const struct {
char from;
enum action to;
} table[] = {
{ '0', ACTION_POWEROFF },
{ '6', ACTION_REBOOT },
{ '1', ACTION_RESCUE },
{ '2', ACTION_RUNLEVEL2 },
{ '3', ACTION_RUNLEVEL3 },
{ '4', ACTION_RUNLEVEL4 },
{ '5', ACTION_RUNLEVEL5 },
{ 's', ACTION_RESCUE },
{ 'S', ACTION_RESCUE },
{ 'q', ACTION_RELOAD },
{ 'Q', ACTION_RELOAD },
{ 'u', ACTION_REEXEC },
{ 'U', ACTION_REEXEC }
};
unsigned i;
int c;
assert(argc >= 0);
assert(argv);
while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0)
switch (c) {
case ARG_HELP:
telinit_help();
return 0;
case ARG_NO_WALL:
arg_no_wall = true;
break;
case '?':
return -EINVAL;
default:
assert_not_reached("Unhandled option");
}
if (optind >= argc) {
log_error("%s: required argument missing.", program_invocation_short_name);
return -EINVAL;
}
if (optind + 1 < argc) {
log_error("Too many arguments.");
return -EINVAL;
}
if (strlen(argv[optind]) != 1) {
log_error("Expected single character argument.");
return -EINVAL;
}
for (i = 0; i < ELEMENTSOF(table); i++)
if (table[i].from == argv[optind][0])
break;
if (i >= ELEMENTSOF(table)) {
log_error("Unknown command '%s'.", argv[optind]);
return -EINVAL;
}
arg_action = table[i].to;
optind++;
return 1;
}
static int runlevel_parse_argv(int argc, char *argv[]) {
enum {
ARG_HELP = 0x100,
};
static const struct option options[] = {
{ "help", no_argument, NULL, ARG_HELP },
{}
};
int c;
assert(argc >= 0);
assert(argv);
while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0)
switch (c) {
case ARG_HELP:
runlevel_help();
return 0;
case '?':
return -EINVAL;
default:
assert_not_reached("Unhandled option");
}
if (optind < argc) {
log_error("Too many arguments.");
return -EINVAL;
}
return 1;
}
static int parse_argv(int argc, char *argv[]) {
assert(argc >= 0);
assert(argv);
if (program_invocation_short_name) {
if (strstr(program_invocation_short_name, "halt")) {
arg_action = ACTION_HALT;
return halt_parse_argv(argc, argv);
} else if (strstr(program_invocation_short_name, "poweroff")) {
arg_action = ACTION_POWEROFF;
return halt_parse_argv(argc, argv);
} else if (strstr(program_invocation_short_name, "reboot")) {
if (kexec_loaded())
arg_action = ACTION_KEXEC;
else
arg_action = ACTION_REBOOT;
return halt_parse_argv(argc, argv);
} else if (strstr(program_invocation_short_name, "shutdown")) {
arg_action = ACTION_POWEROFF;
return shutdown_parse_argv(argc, argv);
} else if (strstr(program_invocation_short_name, "init")) {
if (sd_booted() > 0) {
arg_action = _ACTION_INVALID;
return telinit_parse_argv(argc, argv);
} else {
/* Hmm, so some other init system is
* running, we need to forward this
* request to it. For now we simply
* guess that it is Upstart. */
execv(TELINIT, argv);
log_error("Couldn't find an alternative telinit implementation to spawn.");
return -EIO;
}
} else if (strstr(program_invocation_short_name, "runlevel")) {
arg_action = ACTION_RUNLEVEL;
return runlevel_parse_argv(argc, argv);
}
}
arg_action = ACTION_SYSTEMCTL;
return systemctl_parse_argv(argc, argv);
}
#if HAVE_SYSV_COMPAT
_pure_ static int action_to_runlevel(void) {
static const char table[_ACTION_MAX] = {
[ACTION_HALT] = '0',
[ACTION_POWEROFF] = '0',
[ACTION_REBOOT] = '6',
[ACTION_RUNLEVEL2] = '2',
[ACTION_RUNLEVEL3] = '3',
[ACTION_RUNLEVEL4] = '4',
[ACTION_RUNLEVEL5] = '5',
[ACTION_RESCUE] = '1'
};
assert(arg_action >= 0 && arg_action < _ACTION_MAX);
return table[arg_action];
}
#endif
static int talk_initctl(void) {
#if HAVE_SYSV_COMPAT
struct init_request request = {
.magic = INIT_MAGIC,
.sleeptime = 0,
.cmd = INIT_CMD_RUNLVL
};
_cleanup_close_ int fd = -1;
char rl;
int r;
rl = action_to_runlevel();
if (!rl)
return 0;
request.runlevel = rl;
fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY);
if (fd < 0) {
if (errno == ENOENT)
return 0;
return log_error_errno(errno, "Failed to open "INIT_FIFO": %m");
}
r = loop_write(fd, &request, sizeof(request), false);
if (r < 0)
return log_error_errno(r, "Failed to write to "INIT_FIFO": %m");
return 1;
#else
return 0;
#endif
}
static int systemctl_main(int argc, char *argv[]) {
static const Verb verbs[] = {
{ "list-units", VERB_ANY, VERB_ANY, VERB_DEFAULT|VERB_ONLINE_ONLY, list_units },
{ "list-unit-files", VERB_ANY, VERB_ANY, 0, list_unit_files },
{ "list-sockets", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, list_sockets },
{ "list-timers", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, list_timers },
{ "list-jobs", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, list_jobs },
{ "list-machines", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY|VERB_MUST_BE_ROOT, list_machines },
{ "clear-jobs", VERB_ANY, 1, VERB_ONLINE_ONLY, trivial_method },
{ "cancel", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, cancel_job },
{ "start", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit },
{ "stop", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit },
{ "condstop", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, /* For compatibility with ALTLinux */
{ "reload", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit },
{ "restart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit },
{ "try-restart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit },
{ "reload-or-restart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit },
{ "reload-or-try-restart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, /* For compatbility with old systemctl <= 228 */
{ "try-reload-or-restart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit },
{ "force-reload", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, /* For compatibility with SysV */
{ "condreload", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, /* For compatibility with ALTLinux */
{ "condrestart", 2, VERB_ANY, VERB_ONLINE_ONLY, start_unit }, /* For compatibility with RH */
{ "isolate", 2, 2, VERB_ONLINE_ONLY, start_unit },
{ "kill", 2, VERB_ANY, VERB_ONLINE_ONLY, kill_unit },
{ "is-active", 2, VERB_ANY, VERB_ONLINE_ONLY, check_unit_active },
{ "check", 2, VERB_ANY, VERB_ONLINE_ONLY, check_unit_active },
{ "is-failed", 2, VERB_ANY, VERB_ONLINE_ONLY, check_unit_failed },
{ "show", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, show },
{ "cat", 2, VERB_ANY, VERB_ONLINE_ONLY, cat },
{ "status", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, show },
{ "help", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, show },
{ "daemon-reload", VERB_ANY, 1, VERB_ONLINE_ONLY, daemon_reload },
{ "daemon-reexec", VERB_ANY, 1, VERB_ONLINE_ONLY, daemon_reload },
{ "show-environment", VERB_ANY, 1, VERB_ONLINE_ONLY, show_environment },
{ "set-environment", 2, VERB_ANY, VERB_ONLINE_ONLY, set_environment },
{ "unset-environment", 2, VERB_ANY, VERB_ONLINE_ONLY, set_environment },
{ "import-environment", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, import_environment },
{ "halt", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
{ "poweroff", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
{ "reboot", VERB_ANY, 2, VERB_ONLINE_ONLY, start_system_special },
{ "kexec", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
{ "suspend", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
{ "hibernate", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
{ "hybrid-sleep", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
{ "default", VERB_ANY, 1, VERB_ONLINE_ONLY, start_special },
{ "rescue", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
{ "emergency", VERB_ANY, 1, VERB_ONLINE_ONLY, start_system_special },
{ "exit", VERB_ANY, 2, VERB_ONLINE_ONLY, start_special },
{ "reset-failed", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, reset_failed },
{ "enable", 2, VERB_ANY, 0, enable_unit },
{ "disable", 2, VERB_ANY, 0, enable_unit },
{ "is-enabled", 2, VERB_ANY, 0, unit_is_enabled },
{ "reenable", 2, VERB_ANY, 0, enable_unit },
{ "preset", 2, VERB_ANY, 0, enable_unit },
{ "preset-all", VERB_ANY, 1, 0, preset_all },
{ "mask", 2, VERB_ANY, 0, enable_unit },
{ "unmask", 2, VERB_ANY, 0, enable_unit },
{ "link", 2, VERB_ANY, 0, enable_unit },
{ "revert", 2, VERB_ANY, 0, enable_unit },
{ "switch-root", 2, VERB_ANY, VERB_ONLINE_ONLY, switch_root },
{ "list-dependencies", VERB_ANY, 2, VERB_ONLINE_ONLY, list_dependencies },
{ "set-default", 2, 2, 0, set_default },
{ "get-default", VERB_ANY, 1, 0, get_default },
{ "set-property", 3, VERB_ANY, VERB_ONLINE_ONLY, set_property },
{ "is-system-running", VERB_ANY, 1, 0, is_system_running },
{ "add-wants", 3, VERB_ANY, 0, add_dependency },
{ "add-requires", 3, VERB_ANY, 0, add_dependency },
{ "edit", 2, VERB_ANY, VERB_ONLINE_ONLY, edit },
{}
};
return dispatch_verb(argc, argv, verbs, NULL);
}
static int reload_with_fallback(void) {
/* First, try systemd via D-Bus. */
if (daemon_reload(0, NULL, NULL) >= 0)
return 0;
/* Nothing else worked, so let's try signals */
assert(IN_SET(arg_action, ACTION_RELOAD, ACTION_REEXEC));
if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0)
return log_error_errno(errno, "kill() failed: %m");
return 0;
}
static int start_with_fallback(void) {
/* First, try systemd via D-Bus. */
if (start_unit(0, NULL, NULL) >= 0)
return 0;
/* Nothing else worked, so let's try /dev/initctl */
if (talk_initctl() > 0)
return 0;
log_error("Failed to talk to init daemon.");
return -EIO;
}
static int halt_now(enum action a) {
int r;
/* The kernel will automaticall flush ATA disks and suchlike
* on reboot(), but the file systems need to be synce'd
* explicitly in advance. */
if (!arg_no_sync && !arg_dry_run)
(void) sync();
/* Make sure C-A-D is handled by the kernel from this point on... */
if (!arg_dry_run)
(void) reboot(RB_ENABLE_CAD);
switch (a) {
case ACTION_HALT:
if (!arg_quiet)
log_info("Halting.");
if (arg_dry_run)
return 0;
(void) reboot(RB_HALT_SYSTEM);
return -errno;
case ACTION_POWEROFF:
if (!arg_quiet)
log_info("Powering off.");
if (arg_dry_run)
return 0;
(void) reboot(RB_POWER_OFF);
return -errno;
case ACTION_KEXEC:
case ACTION_REBOOT: {
_cleanup_free_ char *param = NULL;
r = read_one_line_file("/run/systemd/reboot-param", &param);
if (r < 0 && r != -ENOENT)
log_warning_errno(r, "Failed to read reboot parameter file: %m");
if (!isempty(param)) {
if (!arg_quiet)
log_info("Rebooting with argument '%s'.", param);
if (!arg_dry_run) {
(void) syscall(SYS_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2,
LINUX_REBOOT_CMD_RESTART2, param);
log_warning_errno(errno, "Failed to reboot with parameter, retrying without: %m");
}
}
if (!arg_quiet)
log_info("Rebooting.");
if (arg_dry_run)
return 0;
(void) reboot(RB_AUTOBOOT);
return -errno;
}
default:
assert_not_reached("Unknown action.");
}
}
static int logind_schedule_shutdown(void) {
#if ENABLE_LOGIND
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
char date[FORMAT_TIMESTAMP_MAX];
const char *action;
sd_bus *bus;
int r;
r = acquire_bus(BUS_FULL, &bus);
if (r < 0)
return r;
switch (arg_action) {
case ACTION_HALT:
action = "halt";
break;
case ACTION_POWEROFF:
action = "poweroff";
break;
case ACTION_KEXEC:
action = "kexec";
break;
case ACTION_EXIT:
action = "exit";
break;
case ACTION_REBOOT:
default:
action = "reboot";
break;
}
if (arg_dry_run)
action = strjoina("dry-", action);
(void) logind_set_wall_message();
r = sd_bus_call_method(
bus,
"org.freedesktop.login1",
"/org/freedesktop/login1",
"org.freedesktop.login1.Manager",
"ScheduleShutdown",
&error,
NULL,
"st",
action,
arg_when);
if (r < 0)
return log_warning_errno(r, "Failed to call ScheduleShutdown in logind, proceeding with immediate shutdown: %s", bus_error_message(&error, r));
if (!arg_quiet)
log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.", format_timestamp(date, sizeof(date), arg_when));
return 0;
#else
log_error("Cannot schedule shutdown without logind support, proceeding with immediate shutdown.");
return -ENOSYS;
#endif
}
static int halt_main(void) {
int r;
r = logind_check_inhibitors(arg_action);
if (r < 0)
return r;
if (arg_when > 0)
return logind_schedule_shutdown();
if (geteuid() != 0) {
if (arg_dry_run || arg_force > 0) {
(void) must_be_root();
return -EPERM;
}
/* Try logind if we are a normal user and no special
* mode applies. Maybe PolicyKit allows us to shutdown
* the machine. */
if (IN_SET(arg_action, ACTION_POWEROFF, ACTION_REBOOT, ACTION_HALT)) {
r = logind_reboot(arg_action);
if (r >= 0)
return r;
if (IN_SET(r, -EOPNOTSUPP, -EINPROGRESS))
/* requested operation is not
* supported on the local system or
* already in progress */
return r;
/* on all other errors, try low-level operation */
}
}
if (!arg_dry_run && !arg_force)
return start_with_fallback();
assert(geteuid() == 0);
if (!arg_no_wtmp) {
if (sd_booted() > 0)
log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
else {
r = utmp_put_shutdown();
if (r < 0)
log_warning_errno(r, "Failed to write utmp record: %m");
}
}
if (arg_dry_run)
return 0;
r = halt_now(arg_action);
return log_error_errno(r, "Failed to reboot: %m");
}
static int runlevel_main(void) {
int r, runlevel, previous;
r = utmp_get_runlevel(&runlevel, &previous);
if (r < 0) {
puts("unknown");
return r;
}
printf("%c %c\n",
previous <= 0 ? 'N' : previous,
runlevel <= 0 ? 'N' : runlevel);
return 0;
}
static int logind_cancel_shutdown(void) {
#if ENABLE_LOGIND
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
sd_bus *bus;
int r;
r = acquire_bus(BUS_FULL, &bus);
if (r < 0)
return r;
(void) logind_set_wall_message();
r = sd_bus_call_method(
bus,
"org.freedesktop.login1",
"/org/freedesktop/login1",
"org.freedesktop.login1.Manager",
"CancelScheduledShutdown",
&error,
NULL, NULL);
if (r < 0)
return log_warning_errno(r, "Failed to talk to logind, shutdown hasn't been cancelled: %s", bus_error_message(&error, r));
return 0;
#else
log_error("Not compiled with logind support, cannot cancel scheduled shutdowns.");
return -ENOSYS;
#endif
}
int main(int argc, char*argv[]) {
int r;
argv_cmdline = argv[0];
setlocale(LC_ALL, "");
log_parse_environment();
log_open();
sigbus_install();
/* Explicitly not on_tty() to avoid setting cached value.
* This becomes relevant for piping output which might be
* ellipsized. */
original_stdout_is_tty = isatty(STDOUT_FILENO);
r = parse_argv(argc, argv);
if (r <= 0)
goto finish;
if (arg_action != ACTION_SYSTEMCTL && running_in_chroot() > 0) {
if (!arg_quiet)
log_info("Running in chroot, ignoring request.");
r = 0;
goto finish;
}
/* systemctl_main() will print an error message for the bus
* connection, but only if it needs to */
switch (arg_action) {
case ACTION_SYSTEMCTL:
r = systemctl_main(argc, argv);
break;
/* Legacy command aliases set arg_action. They provide some fallbacks,
* e.g. to tell sysvinit to reboot after you have installed systemd
* binaries. */
case ACTION_HALT:
case ACTION_POWEROFF:
case ACTION_REBOOT:
case ACTION_KEXEC:
r = halt_main();
break;
case ACTION_RUNLEVEL2:
case ACTION_RUNLEVEL3:
case ACTION_RUNLEVEL4:
case ACTION_RUNLEVEL5:
case ACTION_RESCUE:
r = start_with_fallback();
break;
case ACTION_RELOAD:
case ACTION_REEXEC:
r = reload_with_fallback();
break;
case ACTION_CANCEL_SHUTDOWN:
r = logind_cancel_shutdown();
break;
case ACTION_RUNLEVEL:
r = runlevel_main();
break;
case ACTION_EXIT:
case ACTION_SUSPEND:
case ACTION_HIBERNATE:
case ACTION_HYBRID_SLEEP:
case ACTION_EMERGENCY:
case ACTION_DEFAULT:
/* systemctl verbs with no equivalent in the legacy commands.
* These cannot appear in arg_action. Fall through. */
case _ACTION_INVALID:
default:
assert_not_reached("Unknown action");
}
finish:
release_busses();
pager_close();
ask_password_agent_close();
polkit_agent_close();
strv_free(arg_types);
strv_free(arg_states);
strv_free(arg_properties);
strv_free(arg_wall);
free(arg_root);
free(arg_esp_path);
/* Note that we return r here, not EXIT_SUCCESS, so that we can implement the LSB-like return codes */
return r < 0 ? EXIT_FAILURE : r;
}