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Systemd/src/systemctl/systemctl.c
Lennart Poettering 151b9b9662 api: in constructor function calls, always put the returned object pointer first (or second) 
Previously the returned object of constructor functions where sometimes
returned as last, sometimes as first and sometimes as second parameter.
Let's clean this up a bit. Here are the new rules:

1. The object the new object is derived from is put first, if there is any

2. The object we are creating will be returned in the next arguments

3. This is followed by any additional arguments

Rationale:

For functions that operate on an object we always put that object first.
Constructors should probably not be too different in this regard. Also,
if the additional parameters might want to use varargs which suggests to
put them last.

Note that this new scheme only applies to constructor functions, not to
all other functions. We do give a lot of freedom for those.

Note that this commit only changes the order of the new functions we
added, for old ones we accept the wrong order and leave it like that.
2014-02-20 00:03:10 +01:00

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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
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 <sys/reboot.h>
#include <linux/reboot.h>
#include <sys/syscall.h>
#include <stdio.h>
#include <getopt.h>
#include <locale.h>
#include <stdbool.h>
#include <string.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <termios.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <stddef.h>
#include <sys/prctl.h>
#include <fnmatch.h>
#include "sd-daemon.h"
#include "sd-shutdown.h"
#include "sd-login.h"
#include "sd-bus.h"
#include "log.h"
#include "util.h"
#include "macro.h"
#include "set.h"
#include "utmp-wtmp.h"
#include "special.h"
#include "initreq.h"
#include "path-util.h"
#include "strv.h"
#include "cgroup-show.h"
#include "cgroup-util.h"
#include "list.h"
#include "path-lookup.h"
#include "conf-parser.h"
#include "exit-status.h"
#include "build.h"
#include "unit-name.h"
#include "pager.h"
#include "spawn-ask-password-agent.h"
#include "spawn-polkit-agent.h"
#include "install.h"
#include "logs-show.h"
#include "socket-util.h"
#include "fileio.h"
#include "env-util.h"
#include "bus-util.h"
#include "bus-message.h"
#include "bus-error.h"
#include "bus-errors.h"
static char **arg_types = NULL;
static char **arg_states = NULL;
static char **arg_properties = NULL;
static bool arg_all = false;
static bool original_stdout_is_tty;
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_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_wall = false;
static bool arg_no_reload = false;
static bool arg_show_types = false;
static bool arg_ignore_inhibitors = false;
static bool arg_dry = false;
static bool arg_quiet = false;
static bool arg_full = false;
static int arg_force = 0;
static bool arg_ask_password = true;
static bool arg_runtime = false;
static char **arg_wall = NULL;
static const char *arg_kill_who = NULL;
static int arg_signal = SIGTERM;
static const char *arg_root = NULL;
static usec_t arg_when = 0;
static enum action {
_ACTION_INVALID,
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
} arg_action = ACTION_SYSTEMCTL;
static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
static char *arg_host = NULL;
static unsigned arg_lines = 10;
static OutputMode arg_output = OUTPUT_SHORT;
static bool arg_plain = false;
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" },
{ "reload-or-try-restart", "ReloadOrTryRestartUnit" },
{ "condreload", "ReloadOrTryRestartUnit" },
{ "force-reload", "ReloadOrTryRestartUnit" }
};
static int daemon_reload(sd_bus *bus, char **args);
static int halt_now(enum action a);
static int check_one_unit(sd_bus *bus, const char *name, const char *good_states, bool quiet);
static char** strv_skip_first(char **strv) {
if (strv_length(strv) > 0)
return strv + 1;
return NULL;
}
static void pager_open_if_enabled(void) {
if (arg_no_pager)
return;
pager_open(false);
}
static void ask_password_agent_open_if_enabled(void) {
/* Open the password agent as a child process if necessary */
if (!arg_ask_password)
return;
if (arg_scope != UNIT_FILE_SYSTEM)
return;
if (arg_transport != BUS_TRANSPORT_LOCAL)
return;
ask_password_agent_open();
}
#ifdef HAVE_LOGIND
static void polkit_agent_open_if_enabled(void) {
/* Open the polkit agent as a child process if necessary */
if (!arg_ask_password)
return;
if (arg_scope != UNIT_FILE_SYSTEM)
return;
if (arg_transport != BUS_TRANSPORT_LOCAL)
return;
polkit_agent_open();
}
#endif
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 void warn_wall(enum action a) {
static const char *table[_ACTION_MAX] = {
[ACTION_HALT] = "The system is going down for system halt NOW!",
[ACTION_REBOOT] = "The system is going down for reboot NOW!",
[ACTION_POWEROFF] = "The system is going down for power-off NOW!",
[ACTION_KEXEC] = "The system is going down for kexec reboot NOW!",
[ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
[ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!",
[ACTION_CANCEL_SHUTDOWN] = "The system shutdown has been cancelled NOW!"
};
if (arg_no_wall)
return;
if (arg_wall) {
_cleanup_free_ char *p;
p = strv_join(arg_wall, " ");
if (!p) {
log_oom();
return;
}
if (*p) {
utmp_wall(p, NULL);
return;
}
}
if (!table[a])
return;
utmp_wall(table[a], NULL);
}
static bool avoid_bus(void) {
if (running_in_chroot() > 0)
return true;
if (sd_booted() <= 0)
return true;
if (!isempty(arg_root))
return true;
if (arg_scope == UNIT_FILE_GLOBAL)
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;
d1 = strrchr(u->id, '.');
d2 = strrchr(v->id, '.');
if (d1 && d2) {
int r;
r = strcasecmp(d1, d2);
if (r != 0)
return r;
}
return strcasecmp(u->id, v->id);
}
static bool output_show_unit(const UnitInfo *u, char **patterns) {
const char *dot;
if (!strv_isempty(arg_states))
return
strv_contains(arg_states, u->load_state) ||
strv_contains(arg_states, u->sub_state) ||
strv_contains(arg_states, u->active_state);
if (!strv_isempty(patterns)) {
char **pattern;
STRV_FOREACH(pattern, patterns)
if (fnmatch(*pattern, u->id, FNM_NOESCAPE) == 0)
return true;
return false;
}
return (!arg_types || ((dot = strrchr(u->id, '.')) &&
strv_find(arg_types, dot+1))) &&
(arg_all || !(streq(u->active_state, "inactive")
|| u->following[0]) || u->job_id > 0);
}
static void output_units_list(const UnitInfo *unit_infos, unsigned c) {
unsigned id_len, max_id_len, load_len, active_len, sub_len, job_len, desc_len;
const UnitInfo *u;
unsigned n_shown = 0;
int job_count = 0;
max_id_len = sizeof("UNIT")-1;
load_len = sizeof("LOAD")-1;
active_len = sizeof("ACTIVE")-1;
sub_len = sizeof("SUB")-1;
job_len = sizeof("JOB")-1;
desc_len = 0;
for (u = unit_infos; u < unit_infos + c; u++) {
max_id_len = MAX(max_id_len, strlen(u->id));
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));
if (u->job_id != 0) {
job_len = MAX(job_len, strlen(u->job_type));
job_count++;
}
}
if (!arg_full && original_stdout_is_tty) {
unsigned basic_len;
id_len = MIN(max_id_len, 25u);
basic_len = 5 + id_len + 5 + active_len + sub_len;
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;
/* split the remaining space between UNIT and DESC,
* but do not give UNIT more than it needs. */
if (extra_len > 0) {
incr = MIN(extra_len / 2, max_id_len - id_len);
id_len += incr;
desc_len += extra_len - incr;
}
}
} else
id_len = max_id_len;
for (u = unit_infos; u < unit_infos + c; u++) {
_cleanup_free_ char *e = NULL;
const char *on_loaded, *off_loaded, *on = "";
const char *on_active, *off_active, *off = "";
if (!n_shown && !arg_no_legend) {
printf("%-*s %-*s %-*s %-*s ",
id_len, "UNIT",
load_len, "LOAD",
active_len, "ACTIVE",
sub_len, "SUB");
if (job_count)
printf("%-*s ", job_len, "JOB");
if (!arg_full && arg_no_pager)
printf("%.*s\n", desc_len, "DESCRIPTION");
else
printf("%s\n", "DESCRIPTION");
}
n_shown++;
if (streq(u->load_state, "error") ||
streq(u->load_state, "not-found")) {
on_loaded = on = ansi_highlight_red();
off_loaded = off = ansi_highlight_off();
} else
on_loaded = off_loaded = "";
if (streq(u->active_state, "failed")) {
on_active = on = ansi_highlight_red();
off_active = off = ansi_highlight_off();
} else
on_active = off_active = "";
e = arg_full ? NULL : ellipsize(u->id, id_len, 33);
printf("%s%-*s%s %s%-*s%s %s%-*s %-*s%s %-*s",
on, id_len, e ? e : u->id, off,
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 : "");
if (desc_len > 0)
printf("%.*s\n", desc_len, u->description);
else
printf("%s\n", u->description);
}
if (!arg_no_legend) {
const char *on, *off;
if (n_shown) {
puts("\nLOAD = 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_highlight_off();
} else {
on = ansi_highlight_red();
off = ansi_highlight_off();
}
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);
}
}
static int get_unit_list(
sd_bus *bus,
sd_bus_message **_reply,
UnitInfo **_unit_infos,
char **patterns) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_free_ UnitInfo *unit_infos = NULL;
size_t size = 0;
int r, c = 0;
UnitInfo u;
assert(bus);
assert(_reply);
assert(_unit_infos);
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"ListUnits",
&error,
&reply,
NULL);
if (r < 0) {
log_error("Failed to list units: %s", bus_error_message(&error, r));
return 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) {
if (!output_show_unit(&u, patterns))
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;
*_unit_infos = unit_infos;
unit_infos = NULL;
return c;
}
static int list_units(sd_bus *bus, char **args) {
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_free_ UnitInfo *unit_infos = NULL;
int r;
pager_open_if_enabled();
r = get_unit_list(bus, &reply, &unit_infos, strv_skip_first(args));
if (r < 0)
return r;
qsort_safe(unit_infos, r, sizeof(UnitInfo), compare_unit_info);
output_units_list(unit_infos, r);
return 0;
}
static int get_triggered_units(
sd_bus *bus,
const char* path,
char*** ret) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
int r;
r = sd_bus_get_property_strv(
bus,
"org.freedesktop.systemd1",
path,
"org.freedesktop.systemd1.Unit",
"Triggers",
&error,
ret);
if (r < 0)
log_error("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_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_bus_message_unref_ 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) {
log_error("Failed to get list of listening sockets: %s", bus_error_message(&error, r));
return 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* 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);
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 = sizeof("LISTEN") - 1,
typelen = (sizeof("TYPE") - 1) * arg_show_types,
socklen = sizeof("UNIT") - 1,
servlen = sizeof("ACTIVATES") - 1;
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));
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++) {
char **a;
if (arg_show_types)
printf("%-*s %-*s %-*s",
pathlen, s->path, typelen, s->type, socklen, s->id);
else
printf("%-*s %-*s",
pathlen, s->path, socklen, s->id);
STRV_FOREACH(a, s->triggered)
printf("%s %s",
a == s->triggered ? "" : ",", *a);
printf("\n");
}
on = ansi_highlight();
off = ansi_highlight_off();
if (!arg_no_legend)
printf("\n");
} else {
on = ansi_highlight_red();
off = ansi_highlight_off();
}
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(sd_bus *bus, char **args) {
_cleanup_bus_message_unref_ sd_bus_message *reply = 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;
pager_open_if_enabled();
n = get_unit_list(bus, &reply, &unit_infos, strv_skip_first(args));
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) {
.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_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) {
log_error("Failed to get next elapsation time: %s", bus_error_message(&error, r));
return r;
}
r = sd_bus_get_property_trivial(
bus,
"org.freedesktop.systemd1",
path,
"org.freedesktop.systemd1.Timer",
"NextElapseUSecRealtime",
&error,
't',
&t.realtime);
if (r < 0) {
log_error("Failed to get next elapsation time: %s", bus_error_message(&error, r));
return r;
}
*next = t;
return 0;
}
struct timer_info {
const char* id;
usec_t next_elapse;
char** triggered;
};
static int timer_info_compare(const struct timer_info *a, const struct timer_info *b) {
assert(a);
assert(b);
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 = sizeof("NEXT") - 1,
leftlen = sizeof("LEFT") - 1,
unitlen = sizeof("UNIT") - 1,
activatelen = sizeof("ACTIVATES") - 1;
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));
}
unitlen = MAX(unitlen, strlen(t->id));
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\n",
nextlen, "NEXT",
leftlen, "LEFT",
unitlen, "UNIT",
"ACTIVATES");
for (t = timer_infos; t < timer_infos + n; t++) {
char tstamp[FORMAT_TIMESTAMP_MAX] = "n/a", trel[FORMAT_TIMESTAMP_RELATIVE_MAX] = "n/a";
char **a;
format_timestamp(tstamp, sizeof(tstamp), t->next_elapse);
format_timestamp_relative(trel, sizeof(trel), t->next_elapse);
printf("%-*s %-*s %-*s",
nextlen, tstamp, leftlen, trel, unitlen, t->id);
STRV_FOREACH(a, t->triggered)
printf("%s %s",
a == t->triggered ? "" : ",", *a);
printf("\n");
}
on = ansi_highlight();
off = ansi_highlight_off();
if (!arg_no_legend)
printf("\n");
} else {
on = ansi_highlight_red();
off = ansi_highlight_off();
}
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 int list_timers(sd_bus *bus, char **args) {
_cleanup_bus_message_unref_ sd_bus_message *reply = 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;
int r = 0;
pager_open_if_enabled();
n = get_unit_list(bus, &reply, &unit_infos, strv_skip_first(args));
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;
usec_t m;
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;
if (next.monotonic != (usec_t) -1 && 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_t) -1 && next.realtime > 0)
m = MIN(converted, next.realtime);
else
m = converted;
} else
m = next.realtime;
if (!GREEDY_REALLOC(timer_infos, size, c+1)) {
r = log_oom();
goto cleanup;
}
timer_infos[c++] = (struct timer_info) {
.id = u->id,
.next_elapse = m,
.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 **patterns) {
const char *dot;
if (!strv_isempty(patterns)) {
char **pattern;
STRV_FOREACH(pattern, patterns)
if (fnmatch(*pattern, basename(u->path), FNM_NOESCAPE) == 0)
return true;
return false;
}
return !arg_types || ((dot = strrchr(u->path, '.')) && strv_find(arg_types, dot+1));
}
static void output_unit_file_list(const UnitFileList *units, unsigned c) {
unsigned max_id_len, id_cols, state_cols, n_shown = 0;
const UnitFileList *u;
max_id_len = sizeof("UNIT FILE")-1;
state_cols = sizeof("STATE")-1;
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)
printf("%-*s %-*s\n",
id_cols, "UNIT FILE",
state_cols, "STATE");
for (u = units; u < units + c; u++) {
_cleanup_free_ char *e = NULL;
const char *on, *off;
const char *id;
n_shown++;
if (u->state == UNIT_FILE_MASKED ||
u->state == UNIT_FILE_MASKED_RUNTIME ||
u->state == UNIT_FILE_DISABLED ||
u->state == UNIT_FILE_INVALID) {
on = ansi_highlight_red();
off = ansi_highlight_off();
} else if (u->state == UNIT_FILE_ENABLED) {
on = ansi_highlight_green();
off = ansi_highlight_off();
} else
on = off = "";
id = basename(u->path);
e = arg_full ? NULL : ellipsize(id, id_cols, 33);
printf("%-*s %s%-*s%s\n",
id_cols, e ? e : id,
on, state_cols, unit_file_state_to_string(u->state), off);
}
if (!arg_no_legend)
printf("\n%u unit files listed.\n", n_shown);
}
static int list_unit_files(sd_bus *bus, char **args) {
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_free_ UnitFileList *units = NULL;
UnitFileList *unit;
size_t size = 0;
unsigned c = 0;
const char *state;
char *path;
int r;
pager_open_if_enabled();
if (avoid_bus()) {
Hashmap *h;
UnitFileList *u;
Iterator i;
unsigned n_units;
h = hashmap_new(string_hash_func, string_compare_func);
if (!h)
return log_oom();
r = unit_file_get_list(arg_scope, arg_root, h);
if (r < 0) {
unit_file_list_free(h);
log_error("Failed to get unit file list: %s", strerror(-r));
return r;
}
n_units = hashmap_size(h);
units = new(UnitFileList, n_units);
if (!units) {
unit_file_list_free(h);
return log_oom();
}
HASHMAP_FOREACH(u, h, i) {
if (!output_show_unit_file(u, strv_skip_first(args)))
continue;
units[c++] = *u;
free(u);
}
assert(c <= n_units);
hashmap_free(h);
} else {
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"ListUnitFiles",
&error,
&reply,
NULL);
if (r < 0) {
log_error("Failed to list unit files: %s", bus_error_message(&error, r));
return 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], strv_skip_first(args)))
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);
}
if (c > 0) {
qsort(units, c, sizeof(UnitFileList), compare_unit_file_list);
output_unit_file_list(units, c);
}
if (avoid_bus())
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", draw_special_char(branches & (1 << i) ? DRAW_TREE_VERT : DRAW_TREE_SPACE));
}
len += 2;
if (len > max_len - 3 && !arg_full) {
printf("%s...\n",max_len % 2 ? "" : " ");
return 0;
}
printf("%s", draw_special_char(last ? DRAW_TREE_RIGHT : DRAW_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"
"RequiresOverridable\0"
"Requisite\0"
"RequisiteOverridable\0"
"Wants\0",
[DEPENDENCY_REVERSE] = "RequiredBy\0"
"RequiredByOverridable\0"
"WantedBy\0"
"PartOf\0",
[DEPENDENCY_AFTER] = "After\0",
[DEPENDENCY_BEFORE] = "Before\0",
};
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_bus_message_unref_ 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) {
log_error("Failed to get properties of %s: %s", name, bus_error_message(&error, r));
return 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 = 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) {
int state;
if (strv_contains(*units, *c)) {
if (!arg_plain) {
r = list_dependencies_print("...", level + 1, (branches << 1) | (c[1] == NULL ? 0 : 1), 1);
if (r < 0)
return r;
}
continue;
}
state = check_one_unit(bus, *c, "activating\0active\0reloading\0", true);
if (state > 0)
printf("%s%s%s", ansi_highlight_green(), draw_special_char(DRAW_BLACK_CIRCLE), ansi_highlight_off());
else
printf("%s%s%s", ansi_highlight_red(), draw_special_char(DRAW_BLACK_CIRCLE), ansi_highlight_off());
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(sd_bus *bus, char **args) {
_cleanup_strv_free_ char **units = NULL;
_cleanup_free_ char *unit = NULL;
const char *u;
assert(bus);
if (args[1]) {
unit = unit_name_mangle(args[1], MANGLE_NOGLOB);
if (!unit)
return log_oom();
u = unit;
} else
u = SPECIAL_DEFAULT_TARGET;
pager_open_if_enabled();
puts(u);
return list_dependencies_one(bus, u, 0, &units, 0);
}
static int get_default(sd_bus *bus, char **args) {
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_free_ char *_path = NULL;
const char *path;
int r;
if (!bus || avoid_bus()) {
r = unit_file_get_default(arg_scope, arg_root, &_path);
if (r < 0) {
log_error("Failed to get default target: %s", strerror(-r));
return r;
}
path = _path;
} else {
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"GetDefaultTarget",
&error,
&reply,
NULL);
if (r < 0) {
log_error("Failed to get default target: %s", bus_error_message(&error, -r));
return 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 void dump_unit_file_changes(const UnitFileChange *changes, unsigned n_changes) {
unsigned i;
assert(changes || n_changes == 0);
for (i = 0; i < n_changes; i++) {
if (changes[i].type == UNIT_FILE_SYMLINK)
log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path);
else
log_info("rm '%s'", changes[i].path);
}
}
static int deserialize_and_dump_unit_file_changes(sd_bus_message *m) {
const char *type, *path, *source;
int r;
r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sss)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_read(m, "(sss)", &type, &path, &source)) > 0) {
if (!arg_quiet) {
if (streq(type, "symlink"))
log_info("ln -s '%s' '%s'", source, path);
else
log_info("rm '%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;
}
static int set_default(sd_bus *bus, char **args) {
_cleanup_free_ char *unit = NULL;
UnitFileChange *changes = NULL;
unsigned n_changes = 0;
int r;
unit = unit_name_mangle_with_suffix(args[1], MANGLE_NOGLOB, ".target");
if (!unit)
return log_oom();
if (!bus || avoid_bus()) {
r = unit_file_set_default(arg_scope, arg_root, unit, arg_force, &changes, &n_changes);
if (r < 0) {
log_error("Failed to set default target: %s", strerror(-r));
return r;
}
if (!arg_quiet)
dump_unit_file_changes(changes, n_changes);
r = 0;
} else {
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"SetDefaultTarget",
&error,
&reply,
"sb", unit, arg_force);
if (r < 0) {
log_error("Failed to set default target: %s", bus_error_message(&error, -r));
return r;
}
r = deserialize_and_dump_unit_file_changes(reply);
if (r < 0)
return r;
/* Try to reload if enabeld */
if (!arg_no_reload)
r = daemon_reload(bus, args);
else
r = 0;
}
unit_file_changes_free(changes, n_changes);
return r;
}
struct job_info {
uint32_t id;
const char *name, *type, *state;
};
static void output_jobs_list(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) {
on = ansi_highlight_green();
off = ansi_highlight_off();
printf("%sNo jobs %s.%s\n", on, skipped ? "listed" : "running", off);
return;
}
pager_open_if_enabled();
id_len = sizeof("JOB")-1;
unit_len = sizeof("UNIT")-1;
type_len = sizeof("TYPE")-1;
state_len = sizeof("STATE")-1;
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_highlight_off();
} 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_no_legend) {
on = ansi_highlight();
off = ansi_highlight_off();
printf("\n%s%u jobs listed%s.\n", on, n, off);
}
}
static bool output_show_job(struct job_info *job, char **patterns) {
if (!strv_isempty(patterns)) {
char **pattern;
STRV_FOREACH(pattern, patterns)
if (fnmatch(*pattern, job->name, FNM_NOESCAPE) == 0)
return true;
return false;
}
return true;
}
static int list_jobs(sd_bus *bus, char **args) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_bus_message_unref_ 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;
uint32_t id;
int r;
bool skipped = false;
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"ListJobs",
&error,
&reply,
NULL);
if (r < 0) {
log_error("Failed to list jobs: %s", bus_error_message(&error, r));
return 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_first(args))) {
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);
output_jobs_list(jobs, c, skipped);
return r;
}
static int cancel_job(sd_bus *bus, char **args) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
char **name;
assert(args);
if (strv_length(args) <= 1)
return daemon_reload(bus, args);
STRV_FOREACH(name, args+1) {
uint32_t id;
int r;
r = safe_atou32(*name, &id);
if (r < 0) {
log_error("Failed to parse job id \"%s\": %s", *name, strerror(-r));
return r;
}
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"CancelJob",
&error,
NULL,
"u", id);
if (r < 0) {
log_error("Failed to cancel job %u: %s", (unsigned) id, bus_error_message(&error, r));
return r;
}
}
return 0;
}
static int need_daemon_reload(sd_bus *bus, const char *unit) {
_cleanup_bus_message_unref_ 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;
}
typedef struct WaitData {
Set *set;
char *name;
char *result;
} WaitData;
static int wait_filter(sd_bus *bus, sd_bus_message *m, void *data, sd_bus_error *error) {
WaitData *d = data;
assert(bus);
assert(m);
assert(d);
log_debug("Got D-Bus request: %s.%s() on %s",
sd_bus_message_get_interface(m),
sd_bus_message_get_member(m),
sd_bus_message_get_path(m));
if (sd_bus_message_is_signal(m, "org.freedesktop.DBus.Local", "Disconnected")) {
log_error("Warning! D-Bus connection terminated.");
sd_bus_close(bus);
} else if (sd_bus_message_is_signal(m, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
uint32_t id;
const char *path, *result, *unit;
char *ret;
int r;
r = sd_bus_message_read(m, "uoss", &id, &path, &unit, &result);
if (r >= 0) {
ret = set_remove(d->set, (char*) path);
if (!ret)
return 0;
free(ret);
if (!isempty(result))
d->result = strdup(result);
if (!isempty(unit))
d->name = strdup(unit);
return 0;
}
#ifndef NOLEGACY
r = sd_bus_message_read(m, "uos", &id, &path, &result);
if (r >= 0) {
ret = set_remove(d->set, (char*) path);
if (!ret)
return 0;
free(ret);
if (*result)
d->result = strdup(result);
return 0;
}
#endif
bus_log_parse_error(r);
}
return 0;
}
static int enable_wait_for_jobs(sd_bus *bus) {
int r;
assert(bus);
r = sd_bus_add_match(
bus,
"type='signal',"
"sender='org.freedesktop.systemd1',"
"interface='org.freedesktop.systemd1.Manager',"
"member='JobRemoved',"
"path='/org/freedesktop/systemd1'",
NULL, NULL);
if (r < 0) {
log_error("Failed to add match");
return -EIO;
}
/* This is slightly dirty, since we don't undo the match registrations. */
return 0;
}
static int bus_process_wait(sd_bus *bus) {
int r;
for (;;) {
r = sd_bus_process(bus, NULL);
if (r < 0)
return r;
if (r > 0)
return 0;
r = sd_bus_wait(bus, (uint64_t) -1);
if (r < 0)
return r;
}
}
static int check_wait_response(WaitData *d) {
int r = 0;
assert(d->result);
if (!arg_quiet) {
if (streq(d->result, "timeout"))
log_error("Job for %s timed out.", strna(d->name));
else if (streq(d->result, "canceled"))
log_error("Job for %s canceled.", strna(d->name));
else if (streq(d->result, "dependency"))
log_error("A dependency job for %s failed. See 'journalctl -xn' for details.", strna(d->name));
else if (!streq(d->result, "done") && !streq(d->result, "skipped"))
log_error("Job for %s failed. See 'systemctl status %s' and 'journalctl -xn' for details.", strna(d->name), strna(d->name));
}
if (streq(d->result, "timeout"))
r = -ETIME;
else if (streq(d->result, "canceled"))
r = -ECANCELED;
else if (streq(d->result, "dependency"))
r = -EIO;
else if (!streq(d->result, "done") && !streq(d->result, "skipped"))
r = -EIO;
return r;
}
static int wait_for_jobs(sd_bus *bus, Set *s) {
WaitData d = { .set = s };
int r = 0, q;
assert(bus);
assert(s);
q = sd_bus_add_filter(bus, wait_filter, &d);
if (q < 0)
return log_oom();
while (!set_isempty(s)) {
q = bus_process_wait(bus);
if (q < 0) {
log_error("Failed to wait for response: %s", strerror(-r));
return q;
}
if (d.result) {
q = check_wait_response(&d);
/* Return the first error as it is most likely to be
* meaningful. */
if (q < 0 && r == 0)
r = q;
log_debug("Got result %s/%s for job %s",
strna(d.result), strerror(-q), strna(d.name));
}
free(d.name);
d.name = NULL;
free(d.result);
d.result = NULL;
}
q = sd_bus_remove_filter(bus, wait_filter, &d);
if (q < 0 && r == 0)
r = q;
return r;
}
static int check_one_unit(sd_bus *bus, const char *name, const char *good_states, bool quiet) {
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_free_ char *n = NULL, *state = NULL;
const char *path;
int r;
assert(name);
n = unit_name_mangle(name, MANGLE_NOGLOB);
if (!n)
return log_oom();
/* 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", n);
if (r < 0) {
if (!quiet)
puts("unknown");
return 0;
}
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",
NULL,
&state);
if (r < 0) {
if (!quiet)
puts("unknown");
return 0;
}
if (!quiet)
puts(state);
return nulstr_contains(good_states, state);
}
static int check_triggering_units(
sd_bus *bus,
const char *name) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_free_ char *path = NULL, *n = NULL, *state = NULL;
_cleanup_strv_free_ char **triggered_by = NULL;
bool print_warning_label = true;
char **i;
int r;
n = unit_name_mangle(name, MANGLE_NOGLOB);
if (!n)
return log_oom();
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,
&state);
if (r < 0) {
log_error("Failed to get load state of %s: %s", n, bus_error_message(&error, r));
return r;
}
if (streq(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) {
log_error("Failed to get triggered by array of %s: %s", n, bus_error_message(&error, r));
return r;
}
STRV_FOREACH(i, triggered_by) {
r = check_one_unit(bus, *i, "active\0reloading\0", true);
if (r < 0) {
log_error("Failed to check unit: %s", strerror(-r));
return r;
}
if (r == 0)
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 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";
}
static int start_unit_one(
sd_bus *bus,
const char *method,
const char *name,
const char *mode,
sd_bus_error *error,
Set *s) {
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
const char *path;
int r;
assert(method);
assert(name);
assert(mode);
assert(error);
log_debug("Calling manager for %s on %s, %s", method, name, mode);
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;
if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
/* There's always a fallback possible for
* legacy actions. */
return -EADDRNOTAVAIL;
verb = method_to_verb(method);
log_error("Failed to %s %s: %s", verb, name, bus_error_message(error, r));
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)
log_warning("Warning: Unit file of %s changed on disk, 'systemctl%s daemon-reload' recommended.",
name, arg_scope == UNIT_FILE_SYSTEM ? "" : " --user");
if (s) {
char *p;
p = strdup(path);
if (!p)
return log_oom();
log_debug("Adding %s to the set", p);
r = set_consume(s, p);
if (r < 0)
return log_oom();
}
return 0;
}
static int expand_names(sd_bus *bus, char **names, const char* suffix, char ***ret) {
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_strv_free_ char **mangled = NULL, **globs = NULL;
char **name;
int r = 0, i;
STRV_FOREACH(name, names) {
char *t;
if (suffix)
t = unit_name_mangle_with_suffix(*name, MANGLE_GLOB, suffix);
else
t = unit_name_mangle(*name, MANGLE_GLOB);
if (!t)
return log_oom();
if (string_is_glob(t))
r = strv_push(&globs, t);
else
r = strv_push(&mangled, t);
if (r < 0) {
free(t);
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_free_ UnitInfo *unit_infos = NULL;
r = get_unit_list(bus, &reply, &unit_infos, globs);
if (r < 0)
return r;
for (i = 0; i < r; i++)
if (strv_extend(&mangled, unit_infos[i].id) < 0)
return log_oom();
}
*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_RUNLEVEL2_TARGET, NULL, "isolate" },
[ACTION_RUNLEVEL3] = { SPECIAL_RUNLEVEL3_TARGET, NULL, "isolate" },
[ACTION_RUNLEVEL4] = { SPECIAL_RUNLEVEL4_TARGET, NULL, "isolate" },
[ACTION_RUNLEVEL5] = { SPECIAL_RUNLEVEL5_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 = _ACTION_INVALID; i < _ACTION_MAX; i++)
if (streq_ptr(action_table[i].verb, verb))
return i;
return _ACTION_INVALID;
}
static int start_unit(sd_bus *bus, char **args) {
_cleanup_set_free_free_ Set *s = NULL;
_cleanup_strv_free_ char **names = NULL;
const char *method, *mode, *one_name;
char **name;
int r = 0;
assert(bus);
ask_password_agent_open_if_enabled();
if (arg_action == ACTION_SYSTEMCTL) {
enum action action;
method = verb_to_method(args[0]);
action = verb_to_action(args[0]);
mode = streq(args[0], "isolate") ? "isolate" :
action_table[action].mode ?: arg_job_mode;
one_name = action_table[action].target;
} else {
assert(arg_action < ELEMENTSOF(action_table));
assert(action_table[arg_action].target);
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, args + 1, NULL, &names);
if (r < 0)
log_error("Failed to expand names: %s", strerror(-r));
}
if (!arg_no_block) {
r = enable_wait_for_jobs(bus);
if (r < 0) {
log_error("Could not watch jobs: %s", strerror(-r));
return r;
}
s = set_new(string_hash_func, string_compare_func);
if (!s)
return log_oom();
}
STRV_FOREACH(name, names) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
int q;
q = start_unit_one(bus, method, *name, mode, &error, s);
if (r >= 0 && q < 0)
r = translate_bus_error_to_exit_status(q, &error);
}
if (!arg_no_block) {
int q;
q = wait_for_jobs(bus, s);
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);
}
return r;
}
/* Ask systemd-logind, which might grant access to unprivileged users
* through PolicyKit */
static int reboot_with_logind(sd_bus *bus, enum action a) {
#ifdef HAVE_LOGIND
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
const char *method;
int r;
if (!bus)
return -EIO;
polkit_agent_open_if_enabled();
switch (a) {
case ACTION_REBOOT:
method = "Reboot";
break;
case ACTION_POWEROFF:
method = "PowerOff";
break;
case ACTION_SUSPEND:
method = "Suspend";
break;
case ACTION_HIBERNATE:
method = "Hibernate";
break;
case ACTION_HYBRID_SLEEP:
method = "HybridSleep";
break;
default:
return -EINVAL;
}
r = sd_bus_call_method(
bus,
"org.freedesktop.login1",
"/org/freedesktop/login1",
"org.freedesktop.login1.Manager",
method,
&error,
NULL,
"b", true);
if (r < 0)
log_error("Failed to execute operation: %s", bus_error_message(&error, r));
return r;
#else
return -ENOSYS;
#endif
}
static int check_inhibitors(sd_bus *bus, enum action a) {
#ifdef HAVE_LOGIND
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_strv_free_ char **sessions = NULL;
const char *what, *who, *why, *mode;
uint32_t uid, pid;
unsigned c = 0;
char **s;
int r;
if (!bus)
return 0;
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;
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 (!strv_contains(sv,
a == ACTION_HALT ||
a == ACTION_POWEROFF ||
a == ACTION_REBOOT ||
a == ACTION_KEXEC ? "shutdown" : "sleep"))
continue;
get_process_comm(pid, &comm);
user = uid_to_name(uid);
log_warning("Operation inhibited by \"%s\" (PID %lu \"%s\", user %s), reason is \"%s\".",
who, (unsigned long) 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 || (!streq(type, "x11") && !streq(type, "tty")))
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 start_special(sd_bus *bus, char **args) {
enum action a;
int r;
assert(args);
a = verb_to_action(args[0]);
r = check_inhibitors(bus, a);
if (r < 0)
return r;
if (arg_force >= 2 && geteuid() != 0) {
log_error("Must be root.");
return -EPERM;
}
if (arg_force >= 2 &&
(a == ACTION_HALT ||
a == ACTION_POWEROFF ||
a == ACTION_REBOOT))
return halt_now(a);
if (arg_force >= 1 &&
(a == ACTION_HALT ||
a == ACTION_POWEROFF ||
a == ACTION_REBOOT ||
a == ACTION_KEXEC ||
a == ACTION_EXIT))
return daemon_reload(bus, args);
/* first try logind, to allow authentication with polkit */
if (geteuid() != 0 &&
(a == ACTION_POWEROFF ||
a == ACTION_REBOOT ||
a == ACTION_SUSPEND ||
a == ACTION_HIBERNATE ||
a == ACTION_HYBRID_SLEEP)) {
r = reboot_with_logind(bus, a);
if (r >= 0)
return r;
}
r = start_unit(bus, args);
if (r == EXIT_SUCCESS)
warn_wall(a);
return r;
}
static int check_unit_generic(sd_bus *bus, int code, const char *good_states, char **args) {
_cleanup_strv_free_ char **names = NULL;
char **name;
int r;
assert(bus);
assert(args);
r = expand_names(bus, args, NULL, &names);
if (r < 0) {
log_error("Failed to expand names: %s", strerror(-r));
return r;
}
STRV_FOREACH(name, names) {
int state;
state = check_one_unit(bus, *name, good_states, arg_quiet);
if (state < 0)
return state;
if (state == 0)
r = code;
}
return r;
}
static int check_unit_active(sd_bus *bus, char **args) {
/* According to LSB: 3, "program is not running" */
return check_unit_generic(bus, 3, "active\0reloading\0", args + 1);
}
static int check_unit_failed(sd_bus *bus, char **args) {
return check_unit_generic(bus, 1, "failed\0", args + 1);
}
static int kill_unit(sd_bus *bus, char **args) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_strv_free_ char **names = NULL;
char **name;
int r, q;
assert(bus);
assert(args);
if (!arg_kill_who)
arg_kill_who = "all";
r = expand_names(bus, args + 1, NULL, &names);
if (r < 0)
log_error("Failed to expand names: %s", strerror(-r));
STRV_FOREACH(name, names) {
q = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"KillUnit",
&error,
NULL,
"ssi", *names, arg_kill_who, arg_signal);
if (q < 0) {
log_error("Failed to kill unit %s: %s",
*names, bus_error_message(&error, r));
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 UnitStatusInfo {
const char *id;
const char *load_state;
const char *active_state;
const char *sub_state;
const char *unit_file_state;
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;
/* Service */
pid_t main_pid;
pid_t control_pid;
const char *status_text;
const char *pid_file;
bool running:1;
usec_t start_timestamp;
usec_t exit_timestamp;
int exit_code, exit_status;
usec_t condition_timestamp;
bool condition_result;
bool failed_condition_trigger;
bool failed_condition_negate;
const char *failed_condition;
const char *failed_condition_param;
/* 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;
LIST_HEAD(ExecStatusInfo, exec);
} UnitStatusInfo;
static void print_status_info(
UnitStatusInfo *i,
bool *ellipsized) {
ExecStatusInfo *p;
const char *on, *off, *ss;
usec_t timestamp;
char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1;
char since2[FORMAT_TIMESTAMP_MAX], *s2;
const char *path;
int flags =
arg_all * OUTPUT_SHOW_ALL |
(!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
on_tty() * OUTPUT_COLOR |
!arg_quiet * OUTPUT_WARN_CUTOFF |
arg_full * OUTPUT_FULL_WIDTH;
char **t, **t2;
assert(i);
/* This shows pretty information about a unit. See
* print_property() for a low-level property printer */
printf("%s", 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_highlight_off();
} else
on = off = "";
path = i->source_path ? i->source_path : i->fragment_path;
if (i->load_error)
printf(" Loaded: %s%s%s (Reason: %s)\n",
on, strna(i->load_state), off, i->load_error);
else if (path && 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 (!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: ");
free(dir);
dir = NULL;
if (path_get_parent(*dropin, &dir) < 0) {
log_oom();
return;
}
printf("%s\n %s", dir,
draw_special_char(DRAW_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 (streq_ptr(i->active_state, "failed")) {
on = ansi_highlight_red();
off = ansi_highlight_off();
} else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
on = ansi_highlight_green();
off = ansi_highlight_off();
} else
on = off = "";
if (ss)
printf(" Active: %s%s (%s)%s",
on, strna(i->active_state), ss, off);
else
printf(" Active: %s%s%s",
on, strna(i->active_state), off);
if (!isempty(i->result) && !streq(i->result, "success"))
printf(" (Result: %s)", i->result);
timestamp = (streq_ptr(i->active_state, "active") ||
streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
(streq_ptr(i->active_state, "inactive") ||
streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
streq_ptr(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 (!i->condition_result && i->condition_timestamp > 0) {
s1 = format_timestamp_relative(since1, sizeof(since1), i->condition_timestamp);
s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
printf(" start condition failed at %s%s%s\n",
s2, s1 ? "; " : "", s1 ? s1 : "");
if (i->failed_condition_trigger)
printf(" none of the trigger conditions were met\n");
else if (i->failed_condition)
printf(" %s=%s%s was not met\n",
i->failed_condition,
i->failed_condition_negate ? "!" : "",
i->failed_condition_param);
}
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: %u %s=%s ", p->pid, p->name, strna(argv));
good = is_clean_exit_lsb(p->code, p->status, NULL);
if (!good) {
on = ansi_highlight_red();
off = ansi_highlight_off();
} 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: %u", (unsigned) i->main_pid);
if (i->running) {
_cleanup_free_ char *comm = NULL;
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)
printf(";");
}
if (i->control_pid > 0) {
_cleanup_free_ char *c = NULL;
printf(" %8s: %u", i->main_pid ? "" : " Control", (unsigned) i->control_pid);
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->control_group &&
(i->main_pid > 0 || i->control_pid > 0 || cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, i->control_group, false) == 0)) {
unsigned c;
printf(" CGroup: %s\n", i->control_group);
if (arg_transport == BUS_TRANSPORT_LOCAL || arg_transport == BUS_TRANSPORT_CONTAINER) {
unsigned k = 0;
pid_t extra[2];
char prefix[] = " ";
c = columns();
if (c > sizeof(prefix) - 1)
c -= sizeof(prefix) - 1;
else
c = 0;
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, false, extra, k, flags);
}
}
if (i->id && arg_transport == BUS_TRANSPORT_LOCAL) {
printf("\n");
show_journal_by_unit(stdout,
i->id,
arg_output,
0,
i->inactive_exit_timestamp_monotonic,
arg_lines,
getuid(),
flags,
arg_scope == UNIT_FILE_SYSTEM,
ellipsized);
}
if (i->need_daemon_reload)
printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %sdaemon-reload' recommended.\n",
ansi_highlight_red(),
ansi_highlight_off(),
arg_scope == UNIT_FILE_SYSTEM ? "" : "--user ");
}
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:")) {
const char *args[4] = { "man", NULL, NULL, NULL };
_cleanup_free_ char *page = NULL, *section = NULL;
char *e = NULL;
pid_t pid;
size_t k;
k = strlen(*p);
if ((*p)[k-1] == ')')
e = strrchr(*p, '(');
if (e) {
page = strndup((*p) + 4, e - *p - 4);
section = strndup(e + 1, *p + k - e - 2);
if (!page || !section) {
log_oom();
return;
}
args[1] = section;
args[2] = page;
} else
args[1] = *p + 4;
pid = fork();
if (pid < 0) {
log_error("Failed to fork: %m");
continue;
}
if (pid == 0) {
/* Child */
execvp(args[0], (char**) args);
log_error("Failed to execute man: %m");
_exit(EXIT_FAILURE);
}
wait_for_terminate(pid, NULL);
} 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, "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;
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;
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;
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)
log_oom();
LIST_PREPEND(exec, i->exec, info);
info = new0(ExecStatusInfo, 1);
if (!info)
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) {
log_debug("%s %d %d %s %d", cond, trigger, negate, param, state);
if (state < 0 && (!trigger || !i->failed_condition)) {
i->failed_condition = cond;
i->failed_condition_trigger = trigger;
i->failed_condition_negate = negate;
i->failed_condition_param = 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;
}
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)
printf("%s=%u\n", name, (unsigned) u);
else if (arg_all)
printf("%s=\n", name);
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))
printf("%s=%s\n", name, 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))
printf("%s=%s \"%s\"\n", name, 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;
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)
printf("EnvironmentFile=%s (ignore_errors=%s)\n", 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)
printf("%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, "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)
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];
printf("%s={ value=%s ; next_elapse=%s }\n",
base,
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, " ");
printf("%s={ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
name,
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)),
(unsigned) 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)
printf("%s=%s %s\n", name, 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 && streq(name, "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)
printf("%s=%s %" PRIu64 "\n", name, 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 && (streq(name, "BlockIOReadBandwidth") || streq(name, "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)
printf("%s=%s %" PRIu64 "\n", name, 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;
}
break;
}
r = bus_print_property(name, m, 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,
bool show_properties,
bool *new_line,
bool *ellipsized) {
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
UnitStatusInfo info = {};
ExecStatusInfo *p;
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) {
log_error("Failed to get properties: %s", bus_error_message(&error, r));
return 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 = 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) {
if (streq(verb, "help"))
show_unit_help(&info);
else
print_status_info(&info, ellipsized);
}
strv_free(info.documentation);
strv_free(info.dropin_paths);
strv_free(info.listen);
if (!streq_ptr(info.active_state, "active") &&
!streq_ptr(info.active_state, "reloading") &&
streq(verb, "status")) {
/* According to LSB: "program not running" */
/* 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
*/
if (info.pid_file && access(info.pid_file, F_OK) == 0)
r = 1;
else
r = 3;
}
while ((p = info.exec)) {
LIST_REMOVE(exec, info.exec, p);
exec_status_info_free(p);
}
return r;
}
static int get_unit_dbus_path_by_pid(
sd_bus *bus,
uint32_t pid,
char **unit) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_bus_message_unref_ 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) {
log_error("Failed to get unit for PID %lu: %s", (unsigned long) pid, bus_error_message(&error, r));
return 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_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_free_ UnitInfo *unit_infos = NULL;
const UnitInfo *u;
unsigned c;
int r;
r = get_unit_list(bus, &reply, &unit_infos, NULL);
if (r < 0)
return r;
pager_open_if_enabled();
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, show_properties, new_line, ellipsized);
if (r != 0)
return r;
}
return 0;
}
static int cat(sd_bus *bus, char **args) {
_cleanup_free_ char *unit = NULL;
_cleanup_strv_free_ char **names = NULL;
char **name;
bool first = true;
int r = 0;
assert(bus);
assert(args);
r = expand_names(bus, args + 1, NULL, &names);
if (r < 0)
log_error("Failed to expand names: %s", strerror(-r));
pager_open_if_enabled();
STRV_FOREACH(name, names) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_strv_free_ char **dropin_paths = NULL;
_cleanup_free_ char *fragment_path = NULL;
char **path;
unit = unit_dbus_path_from_name(*name);
if (!unit)
return log_oom();
if (need_daemon_reload(bus, *name) > 0)
log_warning("Unit file of %s changed on disk. Run 'systemctl%s daemon-reload'.",
*name, arg_scope == UNIT_FILE_SYSTEM ? "" : " --user");
r = sd_bus_get_property_string(
bus,
"org.freedesktop.systemd1",
unit,
"org.freedesktop.systemd1.Unit",
"FragmentPath",
&error,
&fragment_path);
if (r < 0) {
log_warning("Failed to get FragmentPath: %s", bus_error_message(&error, r));
continue;
}
r = sd_bus_get_property_strv(
bus,
"org.freedesktop.systemd1",
unit,
"org.freedesktop.systemd1.Unit",
"DropInPaths",
&error,
&dropin_paths);
if (r < 0) {
log_warning("Failed to get DropInPaths: %s", bus_error_message(&error, r));
continue;
}
if (first)
first = false;
else
puts("");
if (!isempty(fragment_path)) {
printf("%s# %s%s\n",
ansi_highlight_blue(),
fragment_path,
ansi_highlight_off());
fflush(stdout);
r = sendfile_full(STDOUT_FILENO, fragment_path);
if (r < 0) {
log_warning("Failed to cat %s: %s", fragment_path, strerror(-r));
continue;
}
}
STRV_FOREACH(path, dropin_paths) {
printf("%s%s# %s%s\n",
isempty(fragment_path) && path == dropin_paths ? "" : "\n",
ansi_highlight_blue(),
*path,
ansi_highlight_off());
fflush(stdout);
r = sendfile_full(STDOUT_FILENO, *path);
if (r < 0) {
log_warning("Failed to cat %s: %s", *path, strerror(-r));
continue;
}
}
}
return r < 0 ? r : 0;
}
static int show(sd_bus *bus, char **args) {
bool show_properties, show_status, new_line = false;
bool ellipsized = false;
int r, ret = 0;
assert(bus);
assert(args);
show_properties = streq(args[0], "show");
show_status = streq(args[0], "status");
if (show_properties)
pager_open_if_enabled();
/* If no argument is specified inspect the manager itself */
if (show_properties && strv_length(args) <= 1)
return show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line, &ellipsized);
if (show_status && strv_length(args) <= 1)
ret = show_all(args[0], bus, false, &new_line, &ellipsized);
else {
_cleanup_free_ char **patterns = NULL;
char **name;
STRV_FOREACH(name, args + 1) {
_cleanup_free_ char *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(&unit, "/org/freedesktop/systemd1/job/%u", id) < 0)
return log_oom();
} else {
/* Interpret as PID */
r = get_unit_dbus_path_by_pid(bus, id, &unit);
if (r < 0) {
ret = r;
continue;
}
}
show_one(args[0], bus, unit, show_properties, &new_line, &ellipsized);
}
if (!strv_isempty(patterns)) {
_cleanup_strv_free_ char **names = NULL;
r = expand_names(bus, patterns, NULL, &names);
if (r < 0)
log_error("Failed to expand names: %s", strerror(-r));
STRV_FOREACH(name, names) {
_cleanup_free_ char *unit;
unit = unit_dbus_path_from_name(*name);
if (!unit)
return log_oom();
show_one(args[0], bus, unit, show_properties, &new_line, &ellipsized);
}
}
}
if (ellipsized && !arg_quiet)
printf("Hint: Some lines were ellipsized, use -l to show in full.\n");
return ret;
}
static int append_assignment(sd_bus_message *m, const char *assignment) {
const char *eq;
char *field;
int r;
assert(m);
assert(assignment);
eq = strchr(assignment, '=');
if (!eq) {
log_error("Not an assignment: %s", assignment);
return -EINVAL;
}
field = strndupa(assignment, eq - assignment);
eq ++;
r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, field);
if (r < 0)
return bus_log_create_error(r);
if (streq(field, "CPUAccounting") ||
streq(field, "MemoryAccounting") ||
streq(field, "BlockIOAccounting")) {
r = parse_boolean(eq);
if (r < 0) {
log_error("Failed to parse boolean assignment %s.", assignment);
return -EINVAL;
}
r = sd_bus_message_append(m, "v", "b", r);
} else if (streq(field, "MemoryLimit")) {
off_t bytes;
r = parse_bytes(eq, &bytes);
if (r < 0) {
log_error("Failed to parse bytes specification %s", assignment);
return -EINVAL;
}
r = sd_bus_message_append(m, "v", "t", (uint64_t) bytes);
} else if (streq(field, "CPUShares") || streq(field, "BlockIOWeight")) {
uint64_t u;
r = safe_atou64(eq, &u);
if (r < 0) {
log_error("Failed to parse %s value %s.", field, eq);
return -EINVAL;
}
r = sd_bus_message_append(m, "v", "t", u);
} else if (streq(field, "DevicePolicy"))
r = sd_bus_message_append(m, "v", "s", eq);
else if (streq(field, "DeviceAllow")) {
if (isempty(eq))
r = sd_bus_message_append(m, "v", "a(ss)", 0);
else {
const char *path, *rwm;
char *e;
e = strchr(eq, ' ');
if (e) {
path = strndupa(eq, e - eq);
rwm = e+1;
} else {
path = eq;
rwm = "";
}
if (!path_startswith(path, "/dev")) {
log_error("%s is not a device file in /dev.", path);
return -EINVAL;
}
r = sd_bus_message_append(m, "v", "a(ss)", 1, path, rwm);
}
} else if (streq(field, "BlockIOReadBandwidth") || streq(field, "BlockIOWriteBandwidth")) {
if (isempty(eq))
r = sd_bus_message_append(m, "v", "a(st)", 0);
else {
const char *path, *bandwidth;
off_t bytes;
char *e;
e = strchr(eq, ' ');
if (e) {
path = strndupa(eq, e - eq);
bandwidth = e+1;
} else {
log_error("Failed to parse %s value %s.", field, eq);
return -EINVAL;
}
if (!path_startswith(path, "/dev")) {
log_error("%s is not a device file in /dev.", path);
return -EINVAL;
}
r = parse_bytes(bandwidth, &bytes);
if (r < 0) {
log_error("Failed to parse byte value %s.", bandwidth);
return -EINVAL;
}
r = sd_bus_message_append(m, "v", "a(st)", 1, path, (uint64_t) bytes);
}
} else if (streq(field, "BlockIODeviceWeight")) {
if (isempty(eq))
r = sd_bus_message_append(m, "v", "a(st)", 0);
else {
const char *path, *weight;
uint64_t u;
char *e;
e = strchr(eq, ' ');
if (e) {
path = strndupa(eq, e - eq);
weight = e+1;
} else {
log_error("Failed to parse %s value %s.", field, eq);
return -EINVAL;
}
if (!path_startswith(path, "/dev")) {
log_error("%s is not a device file in /dev.", path);
return -EINVAL;
}
r = safe_atou64(weight, &u);
if (r < 0) {
log_error("Failed to parse %s value %s.", field, weight);
return -EINVAL;
}
r = sd_bus_message_append(m, "v", "a(st)", path, u);
}
} else {
log_error("Unknown assignment %s.", assignment);
return -EINVAL;
}
if (r < 0)
return bus_log_create_error(r);
return 0;
}
static int set_property(sd_bus *bus, char **args) {
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_free_ char *n = NULL;
char **i;
int r;
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);
n = unit_name_mangle(args[1], MANGLE_NOGLOB);
if (!n)
return log_oom();
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);
STRV_FOREACH(i, args + 2) {
r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv");
if (r < 0)
return bus_log_create_error(r);
r = append_assignment(m, *i);
if (r < 0)
return r;
r = sd_bus_message_close_container(m);
if (r < 0)
return bus_log_create_error(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) {
log_error("Failed to set unit properties on %s: %s", n, bus_error_message(&error, r));
return r;
}
return 0;
}
static int snapshot(sd_bus *bus, char **args) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_free_ char *n = NULL, *id = NULL;
const char *path;
int r;
if (strv_length(args) > 1)
n = unit_name_mangle_with_suffix(args[1], MANGLE_NOGLOB, ".snapshot");
else
n = strdup("");
if (!n)
return log_oom();
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"CreateSnapshot",
&error,
&reply,
"sb", n, false);
if (r < 0) {
log_error("Failed to create snapshot: %s", bus_error_message(&error, r));
return r;
}
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",
"Id",
&error,
&id);
if (r < 0) {
log_error("Failed to get ID of snapshot: %s", bus_error_message(&error, r));
return r;
}
if (!arg_quiet)
puts(id);
return 0;
}
static int delete_snapshot(sd_bus *bus, char **args) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_strv_free_ char **names = NULL;
char **name;
int r, q;
assert(args);
r = expand_names(bus, args + 1, ".snapshot", &names);
if (r < 0)
log_error("Failed to expand names: %s", strerror(-r));
STRV_FOREACH(name, names) {
q = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"RemoveSnapshot",
&error,
NULL,
"s", *name);
if (q < 0) {
log_error("Failed to remove snapshot %s: %s",
*name, bus_error_message(&error, r));
if (r == 0)
r = q;
}
}
return r;
}
static int daemon_reload(sd_bus *bus, char **args) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
const char *method;
int r;
if (arg_action == ACTION_RELOAD)
method = "Reload";
else if (arg_action == ACTION_REEXEC)
method = "Reexecute";
else {
assert(arg_action == ACTION_SYSTEMCTL);
method =
streq(args[0], "clear-jobs") ||
streq(args[0], "cancel") ? "ClearJobs" :
streq(args[0], "daemon-reexec") ? "Reexecute" :
streq(args[0], "reset-failed") ? "ResetFailed" :
streq(args[0], "halt") ? "Halt" :
streq(args[0], "poweroff") ? "PowerOff" :
streq(args[0], "reboot") ? "Reboot" :
streq(args[0], "kexec") ? "KExec" :
streq(args[0], "exit") ? "Exit" :
/* "daemon-reload" */ "Reload";
}
r = sd_bus_call_method(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
method,
&error,
NULL,
NULL);
if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
/* There's always a fallback possible for
* legacy actions. */
r = -EADDRNOTAVAIL;
else if ((r == -ETIMEDOUT || r == -ECONNRESET) && streq(method, "Reexecute"))
/* On reexecution, we expect a disconnect, not a
* reply */
r = 0;
else if (r < 0)
log_error("Failed to execute operation: %s", bus_error_message(&error, r));
return r < 0 ? r : 0;
}
static int reset_failed(sd_bus *bus, char **args) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_strv_free_ char **names = NULL;
char **name;
int r, q;
if (strv_length(args) <= 1)
return daemon_reload(bus, args);
r = expand_names(bus, args + 1, NULL, &names);
if (r < 0)
log_error("Failed to expand names: %s", strerror(-r));
STRV_FOREACH(name, names) {
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("Failed to reset failed state of unit %s: %s",
*name, bus_error_message(&error, r));
if (r == 0)
r = q;
}
}
return r;
}
static int show_environment(sd_bus *bus, char **args) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
const char *text;
int r;
pager_open_if_enabled();
r = sd_bus_get_property(
bus,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"Environment",
&error,
&reply,
"as");
if (r < 0) {
log_error("Failed to get environment: %s", bus_error_message(&error, r));
return 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)
puts(text);
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(sd_bus *bus, char **args) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_free_ char *init = NULL;
const char *root;
unsigned l;
int r;
l = strv_length(args);
if (l < 2 || l > 3) {
log_error("Wrong number of arguments.");
return -EINVAL;
}
root = args[1];
if (l >= 3)
init = strdup(args[2]);
else {
parse_env_file("/proc/cmdline", WHITESPACE,
"init", &init,
NULL);
if (!init)
init = strdup("");
}
if (!init)
return log_oom();
log_debug("switching root - root: %s; init: %s", root, 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) {
log_error("Failed to switch root: %s", bus_error_message(&error, r));
return r;
}
return 0;
}
static int set_environment(sd_bus *bus, char **args) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
const char *method;
int r;
assert(bus);
assert(args);
method = streq(args[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, args + 1);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, 0, &error, NULL);
if (r < 0) {
log_error("Failed to set environment: %s", bus_error_message(&error, r));
return r;
}
return 0;
}
static int import_environment(sd_bus *bus, char **args) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
int r;
assert(bus);
assert(args);
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 (strv_isempty(args + 1))
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, args + 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) {
log_error("Failed to import environment: %s", bus_error_message(&error, r));
return r;
}
return 0;
}
static int enable_sysv_units(const char *verb, char **args) {
int r = 0;
#if defined(HAVE_SYSV_COMPAT) && defined(HAVE_CHKCONFIG)
unsigned f = 1, t = 1;
_cleanup_lookup_paths_free_ LookupPaths paths = {};
if (arg_scope != UNIT_FILE_SYSTEM)
return 0;
if (!streq(verb, "enable") &&
!streq(verb, "disable") &&
!streq(verb, "is-enabled"))
return 0;
/* Processes all SysV units, and reshuffles the array so that
* afterwards only the native units remain */
r = lookup_paths_init(&paths, SYSTEMD_SYSTEM, false, NULL, NULL, NULL);
if (r < 0)
return r;
r = 0;
for (f = 0; args[f]; f++) {
const char *name;
_cleanup_free_ char *p = NULL, *q = NULL;
bool found_native = false, found_sysv;
unsigned c = 1;
const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL };
char **k, *l;
int j;
pid_t pid;
siginfo_t status;
name = args[f];
if (!endswith(name, ".service"))
continue;
if (path_is_absolute(name))
continue;
STRV_FOREACH(k, paths.unit_path) {
if (!isempty(arg_root))
asprintf(&p, "%s/%s/%s", arg_root, *k, name);
else
asprintf(&p, "%s/%s", *k, name);
if (!p) {
r = log_oom();
goto finish;
}
found_native = access(p, F_OK) >= 0;
free(p);
p = NULL;
if (found_native)
break;
}
if (found_native)
continue;
if (!isempty(arg_root))
asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name);
else
asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name);
if (!p) {
r = log_oom();
goto finish;
}
p[strlen(p) - sizeof(".service") + 1] = 0;
found_sysv = access(p, F_OK) >= 0;
if (!found_sysv)
continue;
/* Mark this entry, so that we don't try enabling it as native unit */
args[f] = (char*) "";
log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name);
if (!isempty(arg_root))
argv[c++] = q = strappend("--root=", arg_root);
argv[c++] = basename(p);
argv[c++] =
streq(verb, "enable") ? "on" :
streq(verb, "disable") ? "off" : "--level=5";
argv[c] = NULL;
l = strv_join((char**)argv, " ");
if (!l) {
r = log_oom();
goto finish;
}
log_info("Executing %s", l);
free(l);
pid = fork();
if (pid < 0) {
log_error("Failed to fork: %m");
r = -errno;
goto finish;
} else if (pid == 0) {
/* Child */
execv(argv[0], (char**) argv);
_exit(EXIT_FAILURE);
}
j = wait_for_terminate(pid, &status);
if (j < 0) {
log_error("Failed to wait for child: %s", strerror(-r));
r = j;
goto finish;
}
if (status.si_code == CLD_EXITED) {
if (streq(verb, "is-enabled")) {
if (status.si_status == 0) {
if (!arg_quiet)
puts("enabled");
r = 1;
} else {
if (!arg_quiet)
puts("disabled");
}
} else if (status.si_status != 0) {
r = -EINVAL;
goto finish;
}
} else {
r = -EPROTO;
goto finish;
}
}
finish:
/* Drop all SysV units */
for (f = 0, t = 0; args[f]; f++) {
if (isempty(args[f]))
continue;
args[t++] = args[f];
}
args[t] = NULL;
#endif
return r;
}
static int mangle_names(char **original_names, char ***mangled_names) {
char **i, **l, **name;
l = new(char*, strv_length(original_names) + 1);
if (!l)
return log_oom();
i = l;
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);
else
*i = unit_name_mangle(*name, MANGLE_NOGLOB);
if (!*i) {
strv_free(l);
return log_oom();
}
i++;
}
*i = NULL;
*mangled_names = l;
return 0;
}
static int enable_unit(sd_bus *bus, char **args) {
_cleanup_strv_free_ char **names = NULL;
const char *verb = args[0];
UnitFileChange *changes = NULL;
unsigned n_changes = 0;
int carries_install_info = -1;
int r;
if (!args[1])
return 0;
r = mangle_names(args+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))
return 0;
if (!bus || avoid_bus()) {
if (streq(verb, "enable")) {
r = unit_file_enable(arg_scope, arg_runtime, arg_root, names, arg_force, &changes, &n_changes);
carries_install_info = r;
} else if (streq(verb, "disable"))
r = unit_file_disable(arg_scope, arg_runtime, arg_root, names, &changes, &n_changes);
else if (streq(verb, "reenable")) {
r = unit_file_reenable(arg_scope, arg_runtime, arg_root, names, arg_force, &changes, &n_changes);
carries_install_info = r;
} else if (streq(verb, "link"))
r = unit_file_link(arg_scope, arg_runtime, arg_root, names, arg_force, &changes, &n_changes);
else if (streq(verb, "preset")) {
r = unit_file_preset(arg_scope, arg_runtime, arg_root, names, arg_force, &changes, &n_changes);
carries_install_info = r;
} else if (streq(verb, "mask"))
r = unit_file_mask(arg_scope, arg_runtime, arg_root, names, arg_force, &changes, &n_changes);
else if (streq(verb, "unmask"))
r = unit_file_unmask(arg_scope, arg_runtime, arg_root, names, &changes, &n_changes);
else
assert_not_reached("Unknown verb");
if (r < 0) {
log_error("Operation failed: %s", strerror(-r));
goto finish;
}
if (!arg_quiet)
dump_unit_file_changes(changes, n_changes);
r = 0;
} else {
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL, *m = NULL;
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
int expect_carries_install_info = false;
bool send_force = true;
const char *method;
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")) {
method = "PresetUnitFiles";
expect_carries_install_info = true;
} else if (streq(verb, "mask"))
method = "MaskUnitFiles";
else if (streq(verb, "unmask")) {
method = "UnmaskUnitFiles";
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);
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) {
log_error("Failed to execute operation: %s", bus_error_message(&error, r));
return 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 = deserialize_and_dump_unit_file_changes(reply);
if (r < 0)
return r;
/* Try to reload if enabeld */
if (!arg_no_reload)
r = daemon_reload(bus, args);
else
r = 0;
}
if (carries_install_info == 0)
log_warning("The unit files have no [Install] section. They are not meant to be enabled\n"
"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");
finish:
unit_file_changes_free(changes, n_changes);
return r;
}
static int unit_is_enabled(sd_bus *bus, char **args) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_strv_free_ char **names = NULL;
bool enabled;
char **name;
int r;
r = mangle_names(args+1, &names);
if (r < 0)
return r;
r = enable_sysv_units(args[0], names);
if (r < 0)
return r;
enabled = r > 0;
if (!bus || avoid_bus()) {
STRV_FOREACH(name, names) {
UnitFileState state;
state = unit_file_get_state(arg_scope, arg_root, *name);
if (state < 0) {
log_error("Failed to get unit file state for %s: %s", *name, strerror(-state));
return state;
}
if (state == UNIT_FILE_ENABLED ||
state == UNIT_FILE_ENABLED_RUNTIME ||
state == UNIT_FILE_STATIC)
enabled = true;
if (!arg_quiet)
puts(unit_file_state_to_string(state));
}
} else {
STRV_FOREACH(name, names) {
_cleanup_bus_message_unref_ 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) {
log_error("Failed to get unit file state for %s: %s", *name, bus_error_message(&error, r));
return r;
}
r = sd_bus_message_read(reply, "s", &s);
if (r < 0)
return bus_log_parse_error(r);
if (streq(s, "enabled") ||
streq(s, "enabled-runtime") ||
streq(s, "static"))
enabled = true;
if (!arg_quiet)
puts(s);
}
}
return !enabled;
}
static int systemctl_help(void) {
pager_open_if_enabled();
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 only units of a particular type\n"
" --state=STATE List only units with particular LOAD or SUB or ACTIVE state\n"
" -p --property=NAME Show only properties by this name\n"
" -a --all Show all loaded units/properties, including dead/empty\n"
" ones. To list all units installed on the system, use\n"
" the 'list-unit-files' command instead.\n"
" -l --full Don't ellipsize unit names on output\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"
" -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"
" -q --quiet Suppress output\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 When enabling/disabling unit files, don't reload daemon\n"
" configuration\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 unit files globally\n"
" --runtime Enable unit files only temporarily until next reboot\n"
" -f --force When enabling unit files, override existing symlinks\n"
" When shutting down, execute action immediately\n"
" --root=PATH Enable unit files in the specified root directory\n"
" -n --lines=INTEGER Number of journal entries to show\n"
" -o --output=STRING Change journal output mode (short, short-monotonic,\n"
" verbose, export, json, json-pretty, json-sse, cat)\n"
" --plain Print unit dependencies as a list instead of a tree\n\n"
"Unit Commands:\n"
" list-units [PATTERN...] List loaded units\n"
" list-sockets [PATTERN...] List loaded sockets ordered by address\n"
" list-timers [PATTERN...] List loaded timers ordered 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"
" reload-or-try-restart NAME... Reload one or more units if possible,\n"
" otherwise restart if active\n"
" isolate NAME Start one unit and stop all others\n"
" kill NAME... Send signal to processes of a unit\n"
" is-active NAME... Check whether units are active\n"
" is-failed NAME... Check whether units are failed\n"
" status [NAME...|PID...] Show runtime status of one or more units\n"
" show [NAME...|JOB...] Show properties of one or more\n"
" units/jobs or the manager\n"
" cat NAME... 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 NAME...|PID... Show manual for one or more units\n"
" reset-failed [NAME...] 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... 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"
" is-enabled NAME... Check whether unit files are enabled\n\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"
" get-default Get the name of the default target\n"
" set-default NAME Set the default target\n\n"
"Job Commands:\n"
" list-jobs [PATTERN...] List jobs\n"
" cancel [JOB...] Cancel all, one, or more jobs\n\n"
"Snapshot Commands:\n"
" snapshot [NAME] Create a snapshot\n"
" delete NAME... Remove one or more snapshots\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, one or more 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"
" 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 Request user instance 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);
return 0;
}
static int 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");
return 0;
}
static int 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);
return 0;
}
static int 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);
return 0;
}
static int 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);
return 0;
}
static int help_types(void) {
int i;
const char *t;
puts("Available unit types:");
for (i = 0; i < _UNIT_TYPE_MAX; i++) {
t = unit_type_to_string(i);
if (t)
puts(t);
}
return 0;
}
static int systemctl_parse_argv(int argc, char *argv[]) {
enum {
ARG_FAIL = 0x100,
ARG_REVERSE,
ARG_AFTER,
ARG_BEFORE,
ARG_SHOW_TYPES,
ARG_IRREVERSIBLE,
ARG_IGNORE_DEPENDENCIES,
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
};
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' },
{ "user", no_argument, NULL, ARG_USER },
{ "system", no_argument, NULL, ARG_SYSTEM },
{ "global", no_argument, NULL, ARG_GLOBAL },
{ "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 },
{ "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 },
{}
};
int c;
assert(argc >= 0);
assert(argv);
while ((c = getopt_long(argc, argv, "ht:p:alqfs:H:M:n:o:i", options, NULL)) >= 0) {
switch (c) {
case 'h':
return systemctl_help();
case ARG_VERSION:
puts(PACKAGE_STRING);
puts(SYSTEMD_FEATURES);
return 0;
case 't': {
char *word, *state;
size_t size;
FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
_cleanup_free_ char *type;
type = strndup(word, size);
if (!type)
return -ENOMEM;
if (streq(type, "help")) {
help_types();
return 0;
}
if (unit_type_from_string(type) >= 0) {
if (strv_push(&arg_types, type))
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(optarg) >= 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 {
char *word, *state;
size_t size;
FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
char *prop;
prop = strndup(word, size);
if (!prop)
return log_oom();
if (strv_push(&arg_properties, prop) < 0) {
free(prop);
return log_oom();
}
}
}
/* If the user asked for a particular
* property, show it to him, even if it is
* empty. */
arg_all = true;
break;
}
case 'a':
arg_all = true;
break;
case ARG_REVERSE:
arg_dependency = DEPENDENCY_REVERSE;
break;
case ARG_AFTER:
arg_dependency = DEPENDENCY_AFTER;
break;
case ARG_BEFORE:
arg_dependency = DEPENDENCY_BEFORE;
break;
case ARG_SHOW_TYPES:
arg_show_types = 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_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:
arg_root = optarg;
break;
case 'l':
arg_full = true;
break;
case ARG_FAILED:
if (strv_extend(&arg_states, "failed") < 0)
return log_oom();
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':
if ((arg_signal = signal_from_string_try_harder(optarg)) < 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_CONTAINER;
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_STATE: {
char *word, *state;
size_t size;
FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
char *s;
s = strndup(word, size);
if (!s)
return log_oom();
if (strv_push(&arg_states, s) < 0) {
free(s);
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;
}
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-wall", no_argument, NULL, ARG_NO_WALL },
{}
};
int c, r, runlevel;
assert(argc >= 0);
assert(argv);
if (utmp_get_runlevel(&runlevel, NULL) >= 0)
if (runlevel == '0' || runlevel == '6')
arg_force = 2;
while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
switch (c) {
case ARG_HELP:
return halt_help();
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 = true;
break;
case 'd':
arg_no_wtmp = true;
break;
case ARG_NO_WALL:
arg_no_wall = true;
break;
case 'i':
case 'h':
case 'n':
/* Compatibility nops */
break;
case '?':
return -EINVAL;
default:
assert_not_reached("Unhandled option");
}
}
if (arg_action == ACTION_REBOOT && argc == optind + 1) {
r = write_string_file(REBOOT_PARAM_FILE, argv[optind]);
if (r < 0) {
log_error("Failed to write reboot param to "
REBOOT_PARAM_FILE": %s", strerror(-r));
return r;
}
} else if (optind < argc) {
log_error("Too many arguments.");
return -EINVAL;
}
return 1;
}
static int parse_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 },
{}
};
int c, r;
assert(argc >= 0);
assert(argv);
while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
switch (c) {
case ARG_HELP:
return shutdown_help();
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 = true;
break;
case ARG_NO_WALL:
arg_no_wall = true;
break;
case 't':
case 'a':
/* 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_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 */
arg_wall = argv + optind;
else if (argc > optind + 1)
/* We skip the time argument */
arg_wall = argv + optind + 1;
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:
return telinit_help();
case ARG_NO_WALL:
arg_no_wall = true;
break;
case '?':
return -EINVAL;
default:
assert_not_reached("Unhandled option");
}
}
if (optind >= argc) {
telinit_help();
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:
return runlevel_help();
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);
}
_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 < _ACTION_MAX);
return table[arg_action];
}
static int talk_initctl(void) {
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;
log_error("Failed to open "INIT_FIFO": %m");
return -errno;
}
errno = 0;
r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
if (r) {
log_error("Failed to write to "INIT_FIFO": %m");
return errno > 0 ? -errno : -EIO;
}
return 1;
}
static int systemctl_main(sd_bus *bus, int argc, char *argv[], int bus_error) {
static const struct {
const char* verb;
const enum {
MORE,
LESS,
EQUAL
} argc_cmp;
const int argc;
int (* const dispatch)(sd_bus *bus, char **args);
const enum {
NOBUS = 1,
FORCE,
} bus;
} verbs[] = {
{ "list-units", MORE, 0, list_units },
{ "list-unit-files", MORE, 1, list_unit_files, NOBUS },
{ "list-sockets", MORE, 1, list_sockets },
{ "list-timers", MORE, 1, list_timers },
{ "list-jobs", MORE, 1, list_jobs },
{ "clear-jobs", EQUAL, 1, daemon_reload },
{ "cancel", MORE, 2, cancel_job },
{ "start", MORE, 2, start_unit },
{ "stop", MORE, 2, start_unit },
{ "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
{ "reload", MORE, 2, start_unit },
{ "restart", MORE, 2, start_unit },
{ "try-restart", MORE, 2, start_unit },
{ "reload-or-restart", MORE, 2, start_unit },
{ "reload-or-try-restart", MORE, 2, start_unit },
{ "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
{ "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
{ "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
{ "isolate", EQUAL, 2, start_unit },
{ "kill", MORE, 2, kill_unit },
{ "is-active", MORE, 2, check_unit_active },
{ "check", MORE, 2, check_unit_active },
{ "is-failed", MORE, 2, check_unit_failed },
{ "show", MORE, 1, show },
{ "cat", MORE, 2, cat },
{ "status", MORE, 1, show },
{ "help", MORE, 2, show },
{ "snapshot", LESS, 2, snapshot },
{ "delete", MORE, 2, delete_snapshot },
{ "daemon-reload", EQUAL, 1, daemon_reload },
{ "daemon-reexec", EQUAL, 1, daemon_reload },
{ "show-environment", EQUAL, 1, show_environment },
{ "set-environment", MORE, 2, set_environment },
{ "unset-environment", MORE, 2, set_environment },
{ "import-environment", MORE, 1, import_environment},
{ "halt", EQUAL, 1, start_special, FORCE },
{ "poweroff", EQUAL, 1, start_special, FORCE },
{ "reboot", EQUAL, 1, start_special, FORCE },
{ "kexec", EQUAL, 1, start_special },
{ "suspend", EQUAL, 1, start_special },
{ "hibernate", EQUAL, 1, start_special },
{ "hybrid-sleep", EQUAL, 1, start_special },
{ "default", EQUAL, 1, start_special },
{ "rescue", EQUAL, 1, start_special },
{ "emergency", EQUAL, 1, start_special },
{ "exit", EQUAL, 1, start_special },
{ "reset-failed", MORE, 1, reset_failed },
{ "enable", MORE, 2, enable_unit, NOBUS },
{ "disable", MORE, 2, enable_unit, NOBUS },
{ "is-enabled", MORE, 2, unit_is_enabled, NOBUS },
{ "reenable", MORE, 2, enable_unit, NOBUS },
{ "preset", MORE, 2, enable_unit, NOBUS },
{ "mask", MORE, 2, enable_unit, NOBUS },
{ "unmask", MORE, 2, enable_unit, NOBUS },
{ "link", MORE, 2, enable_unit, NOBUS },
{ "switch-root", MORE, 2, switch_root },
{ "list-dependencies", LESS, 2, list_dependencies },
{ "set-default", EQUAL, 2, set_default, NOBUS },
{ "get-default", EQUAL, 1, get_default, NOBUS },
{ "set-property", MORE, 3, set_property },
{}
}, *verb = verbs;
int left;
assert(argc >= 0);
assert(argv);
left = argc - optind;
/* Special rule: no arguments (left == 0) means "list-units" */
if (left > 0) {
if (streq(argv[optind], "help") && !argv[optind+1]) {
log_error("This command expects one or more "
"unit names. Did you mean --help?");
return -EINVAL;
}
for (; verb->verb; verb++)
if (streq(argv[optind], verb->verb))
goto found;
log_error("Unknown operation '%s'.", argv[optind]);
return -EINVAL;
}
found:
switch (verb->argc_cmp) {
case EQUAL:
if (left != verb->argc) {
log_error("Invalid number of arguments.");
return -EINVAL;
}
break;
case MORE:
if (left < verb->argc) {
log_error("Too few arguments.");
return -EINVAL;
}
break;
case LESS:
if (left > verb->argc) {
log_error("Too many arguments.");
return -EINVAL;
}
break;
default:
assert_not_reached("Unknown comparison operator.");
}
/* Require a bus connection for all operations but
* enable/disable */
if (verb->bus == NOBUS) {
if (!bus && !avoid_bus()) {
log_error("Failed to get D-Bus connection: %s", strerror(-bus_error));
return -EIO;
}
} else {
if (running_in_chroot() > 0) {
log_info("Running in chroot, ignoring request.");
return 0;
}
if ((verb->bus != FORCE || arg_force <= 0) && !bus) {
log_error("Failed to get D-Bus connection: %s", strerror(-bus_error));
return -EIO;
}
}
return verb->dispatch(bus, argv + optind);
}
static int send_shutdownd(usec_t t, char mode, bool dry_run, bool warn, const char *message) {
struct sd_shutdown_command c = {
.usec = t,
.mode = mode,
.dry_run = dry_run,
.warn_wall = warn,
};
union sockaddr_union sockaddr = {
.un.sun_family = AF_UNIX,
.un.sun_path = "/run/systemd/shutdownd",
};
struct iovec iovec[2] = {{
.iov_base = (char*) &c,
.iov_len = offsetof(struct sd_shutdown_command, wall_message),
}};
struct msghdr msghdr = {
.msg_name = &sockaddr,
.msg_namelen = offsetof(struct sockaddr_un, sun_path)
+ sizeof("/run/systemd/shutdownd") - 1,
.msg_iov = iovec,
.msg_iovlen = 1,
};
_cleanup_close_ int fd;
fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
if (fd < 0)
return -errno;
if (!isempty(message)) {
iovec[1].iov_base = (char*) message;
iovec[1].iov_len = strlen(message);
msghdr.msg_iovlen++;
}
if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0)
return -errno;
return 0;
}
static int reload_with_fallback(sd_bus *bus) {
if (bus) {
/* First, try systemd via D-Bus. */
if (daemon_reload(bus, NULL) >= 0)
return 0;
}
/* Nothing else worked, so let's try signals */
assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
log_error("kill() failed: %m");
return -errno;
}
return 0;
}
static int start_with_fallback(sd_bus *bus) {
if (bus) {
/* First, try systemd via D-Bus. */
if (start_unit(bus, NULL) >= 0)
goto done;
}
/* Nothing else worked, so let's try
* /dev/initctl */
if (talk_initctl() > 0)
goto done;
log_error("Failed to talk to init daemon.");
return -EIO;
done:
warn_wall(arg_action);
return 0;
}
static int halt_now(enum action a) {
/* Make sure C-A-D is handled by the kernel from this
* point on... */
reboot(RB_ENABLE_CAD);
switch (a) {
case ACTION_HALT:
log_info("Halting.");
reboot(RB_HALT_SYSTEM);
return -errno;
case ACTION_POWEROFF:
log_info("Powering off.");
reboot(RB_POWER_OFF);
return -errno;
case ACTION_REBOOT: {
_cleanup_free_ char *param = NULL;
if (read_one_line_file(REBOOT_PARAM_FILE, &param) >= 0) {
log_info("Rebooting with argument '%s'.", param);
syscall(SYS_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2,
LINUX_REBOOT_CMD_RESTART2, param);
}
log_info("Rebooting.");
reboot(RB_AUTOBOOT);
return -errno;
}
default:
assert_not_reached("Unknown action.");
}
}
static int halt_main(sd_bus *bus) {
int r;
r = check_inhibitors(bus, arg_action);
if (r < 0)
return r;
if (geteuid() != 0) {
/* Try logind if we are a normal user and no special
* mode applies. Maybe PolicyKit allows us to shutdown
* the machine. */
if (arg_when <= 0 &&
!arg_dry &&
arg_force <= 0 &&
(arg_action == ACTION_POWEROFF ||
arg_action == ACTION_REBOOT)) {
r = reboot_with_logind(bus, arg_action);
if (r >= 0)
return r;
}
log_error("Must be root.");
return -EPERM;
}
if (arg_when > 0) {
_cleanup_free_ char *m;
m = strv_join(arg_wall, " ");
if (!m)
return log_oom();
r = send_shutdownd(arg_when,
arg_action == ACTION_HALT ? 'H' :
arg_action == ACTION_POWEROFF ? 'P' :
arg_action == ACTION_KEXEC ? 'K' :
'r',
arg_dry,
!arg_no_wall,
m);
if (r < 0)
log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
else {
char date[FORMAT_TIMESTAMP_MAX];
log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
format_timestamp(date, sizeof(date), arg_when));
return 0;
}
}
if (!arg_dry && !arg_force)
return start_with_fallback(bus);
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("Failed to write utmp record: %s", strerror(-r));
}
}
if (arg_dry)
return 0;
r = halt_now(arg_action);
log_error("Failed to reboot: %s", strerror(-r));
return r;
}
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;
}
int main(int argc, char*argv[]) {
_cleanup_bus_unref_ sd_bus *bus = NULL;
int r;
setlocale(LC_ALL, "");
log_parse_environment();
log_open();
/* 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;
/* /sbin/runlevel doesn't need to communicate via D-Bus, so
* let's shortcut this */
if (arg_action == ACTION_RUNLEVEL) {
r = runlevel_main();
goto finish;
}
if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
log_info("Running in chroot, ignoring request.");
r = 0;
goto finish;
}
if (!avoid_bus())
r = bus_open_transport_systemd(arg_transport, arg_host, arg_scope != UNIT_FILE_SYSTEM, &bus);
/* 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(bus, argc, argv, r);
break;
case ACTION_HALT:
case ACTION_POWEROFF:
case ACTION_REBOOT:
case ACTION_KEXEC:
r = halt_main(bus);
break;
case ACTION_RUNLEVEL2:
case ACTION_RUNLEVEL3:
case ACTION_RUNLEVEL4:
case ACTION_RUNLEVEL5:
case ACTION_RESCUE:
case ACTION_EMERGENCY:
case ACTION_DEFAULT:
r = start_with_fallback(bus);
break;
case ACTION_RELOAD:
case ACTION_REEXEC:
r = reload_with_fallback(bus);
break;
case ACTION_CANCEL_SHUTDOWN: {
_cleanup_free_ char *m = NULL;
if (arg_wall) {
m = strv_join(arg_wall, " ");
if (!m) {
r = log_oom();
goto finish;
}
}
r = send_shutdownd(arg_when, SD_SHUTDOWN_NONE, false, !arg_no_wall, m);
if (r < 0)
log_warning("Failed to talk to shutdownd, shutdown hasn't been cancelled: %s", strerror(-r));
break;
}
case ACTION_RUNLEVEL:
case _ACTION_INVALID:
default:
assert_not_reached("Unknown action");
}
finish:
pager_close();
ask_password_agent_close();
polkit_agent_close();
strv_free(arg_types);
strv_free(arg_states);
strv_free(arg_properties);
return r < 0 ? EXIT_FAILURE : r;
}
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