1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
7 Copyright 2013 Marc-Antoine Perennou
9 systemd is free software; you can redistribute it and/or modify it
10 under the terms of the GNU Lesser General Public License as published by
11 the Free Software Foundation; either version 2.1 of the License, or
12 (at your option) any later version.
14 systemd is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 Lesser General Public License for more details.
19 You should have received a copy of the GNU Lesser General Public License
20 along with systemd; If not, see <http://www.gnu.org/licenses/>.
23 #include <sys/reboot.h>
24 #include <linux/reboot.h>
25 #include <sys/syscall.h>
32 #include <sys/ioctl.h>
36 #include <sys/socket.h>
39 #include <sys/prctl.h>
41 #include "sd-daemon.h"
42 #include "sd-shutdown.h"
49 #include "utmp-wtmp.h"
52 #include "path-util.h"
54 #include "cgroup-show.h"
55 #include "cgroup-util.h"
57 #include "path-lookup.h"
58 #include "conf-parser.h"
59 #include "exit-status.h"
60 #include "bus-errors.h"
62 #include "unit-name.h"
64 #include "spawn-ask-password-agent.h"
65 #include "spawn-polkit-agent.h"
67 #include "logs-show.h"
68 #include "socket-util.h"
71 #include "bus-message.h"
72 #include "bus-error.h"
73 #include "bus-errors.h"
75 static char **arg_types = NULL;
76 static char **arg_states = NULL;
77 static char **arg_properties = NULL;
78 static bool arg_all = false;
79 static bool original_stdout_is_tty;
80 static enum dependency {
85 } arg_dependency = DEPENDENCY_FORWARD;
86 static const char *arg_job_mode = "replace";
87 static UnitFileScope arg_scope = UNIT_FILE_SYSTEM;
88 static bool arg_no_block = false;
89 static bool arg_no_legend = false;
90 static bool arg_no_pager = false;
91 static bool arg_no_wtmp = false;
92 static bool arg_no_wall = false;
93 static bool arg_no_reload = false;
94 static bool arg_show_types = false;
95 static bool arg_ignore_inhibitors = false;
96 static bool arg_dry = false;
97 static bool arg_quiet = false;
98 static bool arg_full = false;
99 static int arg_force = 0;
100 static bool arg_ask_password = true;
101 static bool arg_runtime = false;
102 static char **arg_wall = NULL;
103 static const char *arg_kill_who = NULL;
104 static int arg_signal = SIGTERM;
105 static const char *arg_root = NULL;
106 static usec_t arg_when = 0;
128 ACTION_CANCEL_SHUTDOWN,
130 } arg_action = ACTION_SYSTEMCTL;
131 static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
132 static char *arg_host = NULL;
133 static unsigned arg_lines = 10;
134 static OutputMode arg_output = OUTPUT_SHORT;
135 static bool arg_plain = false;
137 static int daemon_reload(sd_bus *bus, char **args);
138 static int halt_now(enum action a);
140 static int check_one_unit(sd_bus *bus, const char *name, const char *good_states, bool quiet);
142 static void pager_open_if_enabled(void) {
150 static void ask_password_agent_open_if_enabled(void) {
152 /* Open the password agent as a child process if necessary */
154 if (!arg_ask_password)
157 if (arg_scope != UNIT_FILE_SYSTEM)
160 if (arg_transport != BUS_TRANSPORT_LOCAL)
163 ask_password_agent_open();
167 static void polkit_agent_open_if_enabled(void) {
169 /* Open the polkit agent as a child process if necessary */
171 if (!arg_ask_password)
174 if (arg_scope != UNIT_FILE_SYSTEM)
177 if (arg_transport != BUS_TRANSPORT_LOCAL)
184 static int translate_bus_error_to_exit_status(int r, const sd_bus_error *error) {
187 if (!sd_bus_error_is_set(error))
190 if (sd_bus_error_has_name(error, SD_BUS_ERROR_ACCESS_DENIED) ||
191 sd_bus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
192 sd_bus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
193 sd_bus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
194 return EXIT_NOPERMISSION;
196 if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
197 return EXIT_NOTINSTALLED;
199 if (sd_bus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
200 sd_bus_error_has_name(error, SD_BUS_ERROR_NOT_SUPPORTED))
201 return EXIT_NOTIMPLEMENTED;
203 if (sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
204 return EXIT_NOTCONFIGURED;
212 static void warn_wall(enum action a) {
213 static const char *table[_ACTION_MAX] = {
214 [ACTION_HALT] = "The system is going down for system halt NOW!",
215 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
216 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
217 [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!",
218 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
219 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!",
220 [ACTION_CANCEL_SHUTDOWN] = "The system shutdown has been cancelled NOW!"
227 _cleanup_free_ char *p;
229 p = strv_join(arg_wall, " ");
244 utmp_wall(table[a], NULL);
247 static bool avoid_bus(void) {
249 if (running_in_chroot() > 0)
252 if (sd_booted() <= 0)
255 if (!isempty(arg_root))
258 if (arg_scope == UNIT_FILE_GLOBAL)
264 static int compare_unit_info(const void *a, const void *b) {
265 const UnitInfo *u = a, *v = b;
268 d1 = strrchr(u->id, '.');
269 d2 = strrchr(v->id, '.');
274 r = strcasecmp(d1, d2);
279 return strcasecmp(u->id, v->id);
282 static bool output_show_unit(const UnitInfo *u) {
285 if (!strv_isempty(arg_states))
287 strv_contains(arg_states, u->load_state) ||
288 strv_contains(arg_states, u->sub_state) ||
289 strv_contains(arg_states, u->active_state);
291 return (!arg_types || ((dot = strrchr(u->id, '.')) &&
292 strv_find(arg_types, dot+1))) &&
293 (arg_all || !(streq(u->active_state, "inactive")
294 || u->following[0]) || u->job_id > 0);
297 static void output_units_list(const UnitInfo *unit_infos, unsigned c) {
298 unsigned id_len, max_id_len, load_len, active_len, sub_len, job_len, desc_len;
300 unsigned n_shown = 0;
303 max_id_len = sizeof("UNIT")-1;
304 load_len = sizeof("LOAD")-1;
305 active_len = sizeof("ACTIVE")-1;
306 sub_len = sizeof("SUB")-1;
307 job_len = sizeof("JOB")-1;
310 for (u = unit_infos; u < unit_infos + c; u++) {
311 if (!output_show_unit(u))
314 max_id_len = MAX(max_id_len, strlen(u->id));
315 load_len = MAX(load_len, strlen(u->load_state));
316 active_len = MAX(active_len, strlen(u->active_state));
317 sub_len = MAX(sub_len, strlen(u->sub_state));
319 if (u->job_id != 0) {
320 job_len = MAX(job_len, strlen(u->job_type));
325 if (!arg_full && original_stdout_is_tty) {
328 id_len = MIN(max_id_len, 25u);
329 basic_len = 5 + id_len + 5 + active_len + sub_len;
332 basic_len += job_len + 1;
334 if (basic_len < (unsigned) columns()) {
335 unsigned extra_len, incr;
336 extra_len = columns() - basic_len;
338 /* Either UNIT already got 25, or is fully satisfied.
339 * Grant up to 25 to DESC now. */
340 incr = MIN(extra_len, 25u);
344 /* split the remaining space between UNIT and DESC,
345 * but do not give UNIT more than it needs. */
347 incr = MIN(extra_len / 2, max_id_len - id_len);
349 desc_len += extra_len - incr;
355 for (u = unit_infos; u < unit_infos + c; u++) {
356 _cleanup_free_ char *e = NULL;
357 const char *on_loaded, *off_loaded, *on = "";
358 const char *on_active, *off_active, *off = "";
360 if (!output_show_unit(u))
363 if (!n_shown && !arg_no_legend) {
364 printf("%-*s %-*s %-*s %-*s ",
367 active_len, "ACTIVE",
371 printf("%-*s ", job_len, "JOB");
373 if (!arg_full && arg_no_pager)
374 printf("%.*s\n", desc_len, "DESCRIPTION");
376 printf("%s\n", "DESCRIPTION");
381 if (streq(u->load_state, "error") ||
382 streq(u->load_state, "not-found")) {
383 on_loaded = on = ansi_highlight_red();
384 off_loaded = off = ansi_highlight_off();
386 on_loaded = off_loaded = "";
388 if (streq(u->active_state, "failed")) {
389 on_active = on = ansi_highlight_red();
390 off_active = off = ansi_highlight_off();
392 on_active = off_active = "";
394 e = arg_full ? NULL : ellipsize(u->id, id_len, 33);
396 printf("%s%-*s%s %s%-*s%s %s%-*s %-*s%s %-*s",
397 on, id_len, e ? e : u->id, off,
398 on_loaded, load_len, u->load_state, off_loaded,
399 on_active, active_len, u->active_state,
400 sub_len, u->sub_state, off_active,
401 job_count ? job_len + 1 : 0, u->job_id ? u->job_type : "");
404 printf("%.*s\n", desc_len, u->description);
406 printf("%s\n", u->description);
409 if (!arg_no_legend) {
410 const char *on, *off;
413 printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
414 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
415 "SUB = The low-level unit activation state, values depend on unit type.\n");
417 printf("JOB = Pending job for the unit.\n");
419 on = ansi_highlight();
420 off = ansi_highlight_off();
422 on = ansi_highlight_red();
423 off = ansi_highlight_off();
427 printf("%s%u loaded units listed.%s\n"
428 "To show all installed unit files use 'systemctl list-unit-files'.\n",
431 printf("%s%u loaded units listed.%s Pass --all to see loaded but inactive units, too.\n"
432 "To show all installed unit files use 'systemctl list-unit-files'.\n",
437 static int get_unit_list(
439 sd_bus_message **_reply,
440 UnitInfo **_unit_infos) {
442 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
443 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
444 _cleanup_free_ UnitInfo *unit_infos = NULL;
453 r = sd_bus_call_method(
455 "org.freedesktop.systemd1",
456 "/org/freedesktop/systemd1",
457 "org.freedesktop.systemd1.Manager",
463 log_error("Failed to list units: %s", bus_error_message(&error, r));
467 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssssouso)");
469 return bus_log_parse_error(r);
471 while ((r = bus_parse_unit_info(reply, &u)) > 0) {
473 if (!GREEDY_REALLOC(unit_infos, size, c+1))
479 return bus_log_parse_error(r);
481 r = sd_bus_message_exit_container(reply);
483 return bus_log_parse_error(r);
488 *_unit_infos = unit_infos;
494 static int list_units(sd_bus *bus, char **args) {
495 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
496 _cleanup_free_ UnitInfo *unit_infos = NULL;
499 pager_open_if_enabled();
501 r = get_unit_list(bus, &reply, &unit_infos);
505 qsort_safe(unit_infos, r, sizeof(UnitInfo), compare_unit_info);
506 output_units_list(unit_infos, r);
511 static int get_triggered_units(
516 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
519 r = sd_bus_get_property_strv(
521 "org.freedesktop.systemd1",
523 "org.freedesktop.systemd1.Unit",
529 log_error("Failed to determine triggers: %s", bus_error_message(&error, r));
534 static int get_listening(
536 const char* unit_path,
539 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
540 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
541 const char *type, *path;
544 r = sd_bus_get_property(
546 "org.freedesktop.systemd1",
548 "org.freedesktop.systemd1.Socket",
554 log_error("Failed to get list of listening sockets: %s", bus_error_message(&error, r));
558 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ss)");
560 return bus_log_parse_error(r);
562 while ((r = sd_bus_message_read(reply, "(ss)", &type, &path)) > 0) {
564 r = strv_extend(listening, type);
568 r = strv_extend(listening, path);
575 return bus_log_parse_error(r);
577 r = sd_bus_message_exit_container(reply);
579 return bus_log_parse_error(r);
590 /* Note: triggered is a list here, although it almost certainly
591 * will always be one unit. Nevertheless, dbus API allows for multiple
592 * values, so let's follow that.*/
595 /* The strv above is shared. free is set only in the first one. */
599 static int socket_info_compare(const struct socket_info *a, const struct socket_info *b) {
605 o = strcmp(a->path, b->path);
607 o = strcmp(a->type, b->type);
612 static int output_sockets_list(struct socket_info *socket_infos, unsigned cs) {
613 struct socket_info *s;
614 unsigned pathlen = sizeof("LISTEN") - 1,
615 typelen = (sizeof("TYPE") - 1) * arg_show_types,
616 socklen = sizeof("UNIT") - 1,
617 servlen = sizeof("ACTIVATES") - 1;
618 const char *on, *off;
620 for (s = socket_infos; s < socket_infos + cs; s++) {
624 socklen = MAX(socklen, strlen(s->id));
626 typelen = MAX(typelen, strlen(s->type));
627 pathlen = MAX(pathlen, strlen(s->path));
629 STRV_FOREACH(a, s->triggered)
630 tmp += strlen(*a) + 2*(a != s->triggered);
631 servlen = MAX(servlen, tmp);
636 printf("%-*s %-*.*s%-*s %s\n",
638 typelen + arg_show_types, typelen + arg_show_types, "TYPE ",
642 for (s = socket_infos; s < socket_infos + cs; s++) {
646 printf("%-*s %-*s %-*s",
647 pathlen, s->path, typelen, s->type, socklen, s->id);
650 pathlen, s->path, socklen, s->id);
651 STRV_FOREACH(a, s->triggered)
653 a == s->triggered ? "" : ",", *a);
657 on = ansi_highlight();
658 off = ansi_highlight_off();
662 on = ansi_highlight_red();
663 off = ansi_highlight_off();
666 if (!arg_no_legend) {
667 printf("%s%u sockets listed.%s\n", on, cs, off);
669 printf("Pass --all to see loaded but inactive sockets, too.\n");
675 static int list_sockets(sd_bus *bus, char **args) {
676 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
677 _cleanup_free_ UnitInfo *unit_infos = NULL;
678 struct socket_info *socket_infos = NULL;
680 struct socket_info *s;
685 pager_open_if_enabled();
687 n = get_unit_list(bus, &reply, &unit_infos);
691 for (u = unit_infos; u < unit_infos + n; u++) {
692 _cleanup_strv_free_ char **listening = NULL, **triggered = NULL;
695 if (!output_show_unit(u))
698 if (!endswith(u->id, ".socket"))
701 r = get_triggered_units(bus, u->unit_path, &triggered);
705 c = get_listening(bus, u->unit_path, &listening);
711 if (!GREEDY_REALLOC(socket_infos, size, cs + c)) {
716 for (i = 0; i < c; i++)
717 socket_infos[cs + i] = (struct socket_info) {
719 .type = listening[i*2],
720 .path = listening[i*2 + 1],
721 .triggered = triggered,
722 .own_triggered = i==0,
725 /* from this point on we will cleanup those socket_infos */
728 listening = triggered = NULL; /* avoid cleanup */
731 qsort_safe(socket_infos, cs, sizeof(struct socket_info),
732 (__compar_fn_t) socket_info_compare);
734 output_sockets_list(socket_infos, cs);
737 assert(cs == 0 || socket_infos);
738 for (s = socket_infos; s < socket_infos + cs; s++) {
741 if (s->own_triggered)
742 strv_free(s->triggered);
749 static int get_next_elapse(
752 dual_timestamp *next) {
754 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
762 r = sd_bus_get_property_trivial(
764 "org.freedesktop.systemd1",
766 "org.freedesktop.systemd1.Timer",
767 "NextElapseUSecMonotonic",
772 log_error("Failed to get next elapsation time: %s", bus_error_message(&error, r));
776 r = sd_bus_get_property_trivial(
778 "org.freedesktop.systemd1",
780 "org.freedesktop.systemd1.Timer",
781 "NextElapseUSecRealtime",
786 log_error("Failed to get next elapsation time: %s", bus_error_message(&error, r));
800 static int timer_info_compare(const struct timer_info *a, const struct timer_info *b) {
804 if (a->next_elapse < b->next_elapse)
806 if (a->next_elapse > b->next_elapse)
809 return strcmp(a->id, b->id);
812 static int output_timers_list(struct timer_info *timer_infos, unsigned n) {
813 struct timer_info *t;
815 nextlen = sizeof("NEXT") - 1,
816 leftlen = sizeof("LEFT") - 1,
817 unitlen = sizeof("UNIT") - 1,
818 activatelen = sizeof("ACTIVATES") - 1;
820 const char *on, *off;
822 assert(timer_infos || n == 0);
824 for (t = timer_infos; t < timer_infos + n; t++) {
828 if (t->next_elapse > 0) {
829 char tstamp[FORMAT_TIMESTAMP_MAX] = "", trel[FORMAT_TIMESTAMP_RELATIVE_MAX] = "";
831 format_timestamp(tstamp, sizeof(tstamp), t->next_elapse);
832 nextlen = MAX(nextlen, strlen(tstamp) + 1);
834 format_timestamp_relative(trel, sizeof(trel), t->next_elapse);
835 leftlen = MAX(leftlen, strlen(trel));
838 unitlen = MAX(unitlen, strlen(t->id));
840 STRV_FOREACH(a, t->triggered)
841 ul += strlen(*a) + 2*(a != t->triggered);
842 activatelen = MAX(activatelen, ul);
847 printf("%-*s %-*s %-*s %s\n",
853 for (t = timer_infos; t < timer_infos + n; t++) {
854 char tstamp[FORMAT_TIMESTAMP_MAX] = "n/a", trel[FORMAT_TIMESTAMP_RELATIVE_MAX] = "n/a";
857 format_timestamp(tstamp, sizeof(tstamp), t->next_elapse);
858 format_timestamp_relative(trel, sizeof(trel), t->next_elapse);
860 printf("%-*s %-*s %-*s",
861 nextlen, tstamp, leftlen, trel, unitlen, t->id);
863 STRV_FOREACH(a, t->triggered)
865 a == t->triggered ? "" : ",", *a);
869 on = ansi_highlight();
870 off = ansi_highlight_off();
874 on = ansi_highlight_red();
875 off = ansi_highlight_off();
878 if (!arg_no_legend) {
879 printf("%s%u timers listed.%s\n", on, n, off);
881 printf("Pass --all to see loaded but inactive timers, too.\n");
887 static int list_timers(sd_bus *bus, char **args) {
889 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
890 _cleanup_free_ struct timer_info *timer_infos = NULL;
891 _cleanup_free_ UnitInfo *unit_infos = NULL;
892 struct timer_info *t;
899 pager_open_if_enabled();
901 n = get_unit_list(bus, &reply, &unit_infos);
905 dual_timestamp_get(&nw);
907 for (u = unit_infos; u < unit_infos + n; u++) {
908 _cleanup_strv_free_ char **triggered = NULL;
912 if (!output_show_unit(u))
915 if (!endswith(u->id, ".timer"))
918 r = get_triggered_units(bus, u->unit_path, &triggered);
922 r = get_next_elapse(bus, u->unit_path, &next);
926 if (next.monotonic != (usec_t) -1 && next.monotonic > 0) {
929 if (next.monotonic > nw.monotonic)
930 converted = nw.realtime + (next.monotonic - nw.monotonic);
932 converted = nw.realtime - (nw.monotonic - next.monotonic);
934 if (next.realtime != (usec_t) -1 && next.realtime > 0)
935 m = MIN(converted, next.realtime);
941 if (!GREEDY_REALLOC(timer_infos, size, c+1)) {
946 timer_infos[c++] = (struct timer_info) {
949 .triggered = triggered,
952 triggered = NULL; /* avoid cleanup */
955 qsort_safe(timer_infos, c, sizeof(struct timer_info),
956 (__compar_fn_t) timer_info_compare);
958 output_timers_list(timer_infos, c);
961 for (t = timer_infos; t < timer_infos + c; t++)
962 strv_free(t->triggered);
967 static int compare_unit_file_list(const void *a, const void *b) {
969 const UnitFileList *u = a, *v = b;
971 d1 = strrchr(u->path, '.');
972 d2 = strrchr(v->path, '.');
977 r = strcasecmp(d1, d2);
982 return strcasecmp(path_get_file_name(u->path), path_get_file_name(v->path));
985 static bool output_show_unit_file(const UnitFileList *u) {
988 return !arg_types || ((dot = strrchr(u->path, '.')) && strv_find(arg_types, dot+1));
991 static void output_unit_file_list(const UnitFileList *units, unsigned c) {
992 unsigned max_id_len, id_cols, state_cols, n_shown = 0;
993 const UnitFileList *u;
995 max_id_len = sizeof("UNIT FILE")-1;
996 state_cols = sizeof("STATE")-1;
998 for (u = units; u < units + c; u++) {
999 if (!output_show_unit_file(u))
1002 max_id_len = MAX(max_id_len, strlen(path_get_file_name(u->path)));
1003 state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state)));
1007 unsigned basic_cols;
1009 id_cols = MIN(max_id_len, 25u);
1010 basic_cols = 1 + id_cols + state_cols;
1011 if (basic_cols < (unsigned) columns())
1012 id_cols += MIN(columns() - basic_cols, max_id_len - id_cols);
1014 id_cols = max_id_len;
1017 printf("%-*s %-*s\n",
1018 id_cols, "UNIT FILE",
1019 state_cols, "STATE");
1021 for (u = units; u < units + c; u++) {
1022 _cleanup_free_ char *e = NULL;
1023 const char *on, *off;
1026 if (!output_show_unit_file(u))
1031 if (u->state == UNIT_FILE_MASKED ||
1032 u->state == UNIT_FILE_MASKED_RUNTIME ||
1033 u->state == UNIT_FILE_DISABLED ||
1034 u->state == UNIT_FILE_INVALID) {
1035 on = ansi_highlight_red();
1036 off = ansi_highlight_off();
1037 } else if (u->state == UNIT_FILE_ENABLED) {
1038 on = ansi_highlight_green();
1039 off = ansi_highlight_off();
1043 id = path_get_file_name(u->path);
1045 e = arg_full ? NULL : ellipsize(id, id_cols, 33);
1047 printf("%-*s %s%-*s%s\n",
1048 id_cols, e ? e : id,
1049 on, state_cols, unit_file_state_to_string(u->state), off);
1053 printf("\n%u unit files listed.\n", n_shown);
1056 static int list_unit_files(sd_bus *bus, char **args) {
1057 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1058 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1059 _cleanup_free_ UnitFileList *units = NULL;
1065 pager_open_if_enabled();
1073 h = hashmap_new(string_hash_func, string_compare_func);
1077 r = unit_file_get_list(arg_scope, arg_root, h);
1079 unit_file_list_free(h);
1080 log_error("Failed to get unit file list: %s", strerror(-r));
1084 n_units = hashmap_size(h);
1085 units = new(UnitFileList, n_units);
1087 unit_file_list_free(h);
1091 HASHMAP_FOREACH(u, h, i) {
1092 memcpy(units + c++, u, sizeof(UnitFileList));
1096 assert(c == n_units);
1101 r = sd_bus_call_method(
1103 "org.freedesktop.systemd1",
1104 "/org/freedesktop/systemd1",
1105 "org.freedesktop.systemd1.Manager",
1111 log_error("Failed to list unit files: %s", bus_error_message(&error, r));
1115 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ss)");
1117 return bus_log_parse_error(r);
1119 while ((r = sd_bus_message_read(reply, "(ss)", &path, &state)) > 0) {
1121 if (!GREEDY_REALLOC(units, size, c + 1))
1124 units[c++] = (struct UnitFileList) {
1126 unit_file_state_from_string(state)
1130 return bus_log_parse_error(r);
1132 r = sd_bus_message_exit_container(reply);
1134 return bus_log_parse_error(r);
1138 qsort(units, c, sizeof(UnitFileList), compare_unit_file_list);
1139 output_unit_file_list(units, c);
1145 static int list_dependencies_print(const char *name, int level, unsigned int branches, bool last) {
1146 _cleanup_free_ char *n = NULL;
1147 size_t max_len = MAX(columns(),20u);
1153 for (i = level - 1; i >= 0; i--) {
1155 if (len > max_len - 3 && !arg_full) {
1156 printf("%s...\n",max_len % 2 ? "" : " ");
1159 printf("%s", draw_special_char(branches & (1 << i) ? DRAW_TREE_VERT : DRAW_TREE_SPACE));
1163 if (len > max_len - 3 && !arg_full) {
1164 printf("%s...\n",max_len % 2 ? "" : " ");
1168 printf("%s", draw_special_char(last ? DRAW_TREE_RIGHT : DRAW_TREE_BRANCH));
1172 printf("%s\n", name);
1176 n = ellipsize(name, max_len-len, 100);
1184 static int list_dependencies_get_dependencies(sd_bus *bus, const char *name, char ***deps) {
1186 static const char *dependencies[] = {
1187 [DEPENDENCY_FORWARD] = "Requires\0"
1188 "RequiresOverridable\0"
1190 "RequisiteOverridable\0"
1192 [DEPENDENCY_REVERSE] = "RequiredBy\0"
1193 "RequiredByOverridable\0"
1196 [DEPENDENCY_AFTER] = "After\0",
1197 [DEPENDENCY_BEFORE] = "Before\0",
1200 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1201 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1202 _cleanup_strv_free_ char **ret = NULL;
1203 _cleanup_free_ char *path = NULL;
1209 assert(arg_dependency < ELEMENTSOF(dependencies));
1211 path = unit_dbus_path_from_name(name);
1215 r = sd_bus_call_method(
1217 "org.freedesktop.systemd1",
1219 "org.freedesktop.DBus.Properties",
1223 "s", "org.freedesktop.systemd1.Unit");
1225 log_error("Failed to get properties of %s: %s", name, bus_error_message(&error, r));
1229 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{sv}");
1231 return bus_log_parse_error(r);
1233 while ((r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) {
1236 r = sd_bus_message_read(reply, "s", &prop);
1238 return bus_log_parse_error(r);
1240 if (!nulstr_contains(dependencies[arg_dependency], prop)) {
1241 r = sd_bus_message_skip(reply, "v");
1243 return bus_log_parse_error(r);
1246 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_VARIANT, "as");
1248 return bus_log_parse_error(r);
1250 r = bus_message_read_strv_extend(reply, &ret);
1252 return bus_log_parse_error(r);
1254 r = sd_bus_message_exit_container(reply);
1256 return bus_log_parse_error(r);
1259 r = sd_bus_message_exit_container(reply);
1261 return bus_log_parse_error(r);
1265 return bus_log_parse_error(r);
1267 r = sd_bus_message_exit_container(reply);
1269 return bus_log_parse_error(r);
1277 static int list_dependencies_compare(const void *_a, const void *_b) {
1278 const char **a = (const char**) _a, **b = (const char**) _b;
1280 if (unit_name_to_type(*a) == UNIT_TARGET && unit_name_to_type(*b) != UNIT_TARGET)
1282 if (unit_name_to_type(*a) != UNIT_TARGET && unit_name_to_type(*b) == UNIT_TARGET)
1285 return strcasecmp(*a, *b);
1288 static int list_dependencies_one(
1293 unsigned int branches) {
1295 _cleanup_strv_free_ char **deps = NULL, **u;
1303 u = strv_append(*units, name);
1307 r = list_dependencies_get_dependencies(bus, name, &deps);
1311 qsort_safe(deps, strv_length(deps), sizeof (char*), list_dependencies_compare);
1313 STRV_FOREACH(c, deps) {
1316 if (strv_contains(u, *c)) {
1318 r = list_dependencies_print("...", level + 1, (branches << 1) | (c[1] == NULL ? 0 : 1), 1);
1325 state = check_one_unit(bus, *c, "activating\0active\0reloading\0", true);
1327 printf("%s%s%s", ansi_highlight_green(), draw_special_char(DRAW_BLACK_CIRCLE), ansi_highlight_off());
1329 printf("%s%s%s", ansi_highlight_red(), draw_special_char(DRAW_BLACK_CIRCLE), ansi_highlight_off());
1331 r = list_dependencies_print(*c, level, branches, c[1] == NULL);
1335 if (arg_all || unit_name_to_type(*c) == UNIT_TARGET) {
1336 r = list_dependencies_one(bus, *c, level + 1, &u, (branches << 1) | (c[1] == NULL ? 0 : 1));
1351 static int list_dependencies(sd_bus *bus, char **args) {
1352 _cleanup_strv_free_ char **units = NULL;
1353 _cleanup_free_ char *unit = NULL;
1359 unit = unit_name_mangle(args[1]);
1364 u = SPECIAL_DEFAULT_TARGET;
1366 pager_open_if_enabled();
1370 return list_dependencies_one(bus, u, 0, &units, 0);
1373 static int get_default(sd_bus *bus, char **args) {
1374 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1375 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1376 _cleanup_free_ char *_path = NULL;
1380 if (!bus || avoid_bus()) {
1381 r = unit_file_get_default(arg_scope, arg_root, &_path);
1383 log_error("Failed to get default target: %s", strerror(-r));
1389 r = sd_bus_call_method(
1391 "org.freedesktop.systemd1",
1392 "/org/freedesktop/systemd1",
1393 "org.freedesktop.systemd1.Manager",
1399 log_error("Failed to get default target: %s", bus_error_message(&error, -r));
1403 r = sd_bus_message_read(reply, "s", &path);
1405 return bus_log_parse_error(r);
1409 printf("%s\n", path);
1414 static void dump_unit_file_changes(const UnitFileChange *changes, unsigned n_changes) {
1417 assert(changes || n_changes == 0);
1419 for (i = 0; i < n_changes; i++) {
1420 if (changes[i].type == UNIT_FILE_SYMLINK)
1421 log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path);
1423 log_info("rm '%s'", changes[i].path);
1427 static int deserialize_and_dump_unit_file_changes(sd_bus_message *m) {
1428 const char *type, *path, *source;
1431 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sss)");
1433 return bus_log_parse_error(r);
1435 while ((r = sd_bus_message_read(m, "(sss)", &type, &path, &source)) > 0) {
1437 if (streq(type, "symlink"))
1438 log_info("ln -s '%s' '%s'", source, path);
1440 log_info("rm '%s'", path);
1444 return bus_log_parse_error(r);
1446 r = sd_bus_message_exit_container(m);
1448 return bus_log_parse_error(r);
1453 static int set_default(sd_bus *bus, char **args) {
1454 _cleanup_free_ char *unit = NULL;
1455 UnitFileChange *changes = NULL;
1456 unsigned n_changes = 0;
1459 unit = unit_name_mangle_with_suffix(args[1], ".target");
1463 if (!bus || avoid_bus()) {
1464 r = unit_file_set_default(arg_scope, arg_root, unit, arg_force, &changes, &n_changes);
1466 log_error("Failed to set default target: %s", strerror(-r));
1471 dump_unit_file_changes(changes, n_changes);
1475 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1476 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1478 r = sd_bus_call_method(
1480 "org.freedesktop.systemd1",
1481 "/org/freedesktop/systemd1",
1482 "org.freedesktop.systemd1.Manager",
1486 "sb", unit, arg_force);
1488 log_error("Failed to set default target: %s", bus_error_message(&error, -r));
1492 r = deserialize_and_dump_unit_file_changes(reply);
1496 /* Try to reload if enabeld */
1498 r = daemon_reload(bus, args);
1503 unit_file_changes_free(changes, n_changes);
1510 const char *name, *type, *state;
1513 static void output_jobs_list(const struct job_info* jobs, unsigned n) {
1514 unsigned id_len, unit_len, type_len, state_len;
1515 const struct job_info *j;
1516 const char *on, *off;
1517 bool shorten = false;
1519 assert(n == 0 || jobs);
1522 on = ansi_highlight_green();
1523 off = ansi_highlight_off();
1525 printf("%sNo jobs running.%s\n", on, off);
1529 pager_open_if_enabled();
1531 id_len = sizeof("JOB")-1;
1532 unit_len = sizeof("UNIT")-1;
1533 type_len = sizeof("TYPE")-1;
1534 state_len = sizeof("STATE")-1;
1536 for (j = jobs; j < jobs + n; j++) {
1537 uint32_t id = j->id;
1538 assert(j->name && j->type && j->state);
1540 id_len = MAX(id_len, DECIMAL_STR_WIDTH(id));
1541 unit_len = MAX(unit_len, strlen(j->name));
1542 type_len = MAX(type_len, strlen(j->type));
1543 state_len = MAX(state_len, strlen(j->state));
1546 if (!arg_full && id_len + 1 + unit_len + type_len + 1 + state_len > columns()) {
1547 unit_len = MAX(33u, columns() - id_len - type_len - state_len - 3);
1552 printf("%*s %-*s %-*s %-*s\n",
1556 state_len, "STATE");
1558 for (j = jobs; j < jobs + n; j++) {
1559 _cleanup_free_ char *e = NULL;
1561 if (streq(j->state, "running")) {
1562 on = ansi_highlight();
1563 off = ansi_highlight_off();
1567 e = shorten ? ellipsize(j->name, unit_len, 33) : NULL;
1568 printf("%*u %s%-*s%s %-*s %s%-*s%s\n",
1570 on, unit_len, e ? e : j->name, off,
1572 on, state_len, j->state, off);
1575 if (!arg_no_legend) {
1576 on = ansi_highlight();
1577 off = ansi_highlight_off();
1579 printf("\n%s%u jobs listed%s.\n", on, n, off);
1583 static int list_jobs(sd_bus *bus, char **args) {
1584 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1585 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1586 const char *name, *type, *state, *job_path, *unit_path;
1587 _cleanup_free_ struct job_info *jobs = NULL;
1593 r = sd_bus_call_method(
1595 "org.freedesktop.systemd1",
1596 "/org/freedesktop/systemd1",
1597 "org.freedesktop.systemd1.Manager",
1603 log_error("Failed to list jobs: %s", bus_error_message(&error, r));
1607 r = sd_bus_message_enter_container(reply, 'a', "(usssoo)");
1609 return bus_log_parse_error(r);
1611 while ((r = sd_bus_message_read(reply, "(usssoo)", &id, &name, &type, &state, &job_path, &unit_path)) > 0) {
1613 if (!GREEDY_REALLOC(jobs, size, c + 1))
1616 jobs[c++] = (struct job_info) {
1624 return bus_log_parse_error(r);
1626 r = sd_bus_message_exit_container(reply);
1628 return bus_log_parse_error(r);
1630 output_jobs_list(jobs, c);
1634 static int cancel_job(sd_bus *bus, char **args) {
1635 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1640 if (strv_length(args) <= 1)
1641 return daemon_reload(bus, args);
1643 STRV_FOREACH(name, args+1) {
1647 r = safe_atou32(*name, &id);
1649 log_error("Failed to parse job id \"%s\": %s", *name, strerror(-r));
1653 r = sd_bus_call_method(
1655 "org.freedesktop.systemd1",
1656 "/org/freedesktop/systemd1",
1657 "org.freedesktop.systemd1.Manager",
1663 log_error("Failed to cancel job %u: %s", (unsigned) id, bus_error_message(&error, r));
1671 static int need_daemon_reload(sd_bus *bus, const char *unit) {
1672 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1673 _cleanup_free_ char *n = NULL;
1677 /* We ignore all errors here, since this is used to show a
1680 n = unit_name_mangle(unit);
1684 /* We don't use unit_dbus_path_from_name() directly since we
1685 * don't want to load the unit if it isn't loaded. */
1687 r = sd_bus_call_method(
1689 "org.freedesktop.systemd1",
1690 "/org/freedesktop/systemd1",
1691 "org.freedesktop.systemd1.Manager",
1699 r = sd_bus_message_read(reply, "o", &path);
1703 r = sd_bus_get_property_trivial(
1705 "org.freedesktop.systemd1",
1707 "org.freedesktop.systemd1.Unit",
1717 typedef struct WaitData {
1724 static int wait_filter(sd_bus *bus, sd_bus_message *m, void *data, sd_bus_error *error) {
1731 log_debug("Got D-Bus request: %s.%s() on %s",
1732 sd_bus_message_get_interface(m),
1733 sd_bus_message_get_member(m),
1734 sd_bus_message_get_path(m));
1736 if (sd_bus_message_is_signal(m, "org.freedesktop.DBus.Local", "Disconnected")) {
1737 log_error("Warning! D-Bus connection terminated.");
1739 } else if (sd_bus_message_is_signal(m, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1741 const char *path, *result, *unit;
1745 r = sd_bus_message_read(m, "uoss", &id, &path, &unit, &result);
1747 ret = set_remove(d->set, (char*) path);
1753 if (!isempty(result))
1754 d->result = strdup(result);
1757 d->name = strdup(unit);
1762 r = sd_bus_message_read(m, "uos", &id, &path, &result);
1764 ret = set_remove(d->set, (char*) path);
1771 d->result = strdup(result);
1777 bus_log_parse_error(r);
1783 static int enable_wait_for_jobs(sd_bus *bus) {
1788 r = sd_bus_add_match(
1791 "sender='org.freedesktop.systemd1',"
1792 "interface='org.freedesktop.systemd1.Manager',"
1793 "member='JobRemoved',"
1794 "path='/org/freedesktop/systemd1'",
1797 log_error("Failed to add match");
1801 /* This is slightly dirty, since we don't undo the match registrations. */
1805 static int wait_for_jobs(sd_bus *bus, Set *s) {
1806 WaitData d = { .set = s };
1812 r = sd_bus_add_filter(bus, wait_filter, &d);
1816 while (!set_isempty(s)) {
1818 r = sd_bus_process(bus, NULL);
1823 r = sd_bus_wait(bus, (uint64_t) -1);
1832 if (streq(d.result, "timeout"))
1833 log_error("Job for %s timed out.", strna(d.name));
1834 else if (streq(d.result, "canceled"))
1835 log_error("Job for %s canceled.", strna(d.name));
1836 else if (streq(d.result, "dependency"))
1837 log_error("A dependency job for %s failed. See 'journalctl -xn' for details.", strna(d.name));
1838 else if (!streq(d.result, "done") && !streq(d.result, "skipped"))
1839 log_error("Job for %s failed. See 'systemctl status %s' and 'journalctl -xn' for details.", strna(d.name), strna(d.name));
1842 if (streq_ptr(d.result, "timeout"))
1844 else if (streq_ptr(d.result, "canceled"))
1846 else if (!streq_ptr(d.result, "done") && !streq_ptr(d.result, "skipped"))
1857 return sd_bus_remove_filter(bus, wait_filter, &d);
1860 static int check_one_unit(sd_bus *bus, const char *name, const char *good_states, bool quiet) {
1861 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1862 _cleanup_free_ char *n = NULL, *state = NULL;
1868 n = unit_name_mangle(name);
1872 /* We don't use unit_dbus_path_from_name() directly since we
1873 * don't want to load the unit if it isn't loaded. */
1875 r = sd_bus_call_method(
1877 "org.freedesktop.systemd1",
1878 "/org/freedesktop/systemd1",
1879 "org.freedesktop.systemd1.Manager",
1890 r = sd_bus_message_read(reply, "o", &path);
1892 return bus_log_parse_error(r);
1894 r = sd_bus_get_property_string(
1896 "org.freedesktop.systemd1",
1898 "org.freedesktop.systemd1.Unit",
1911 return nulstr_contains(good_states, state);
1914 static int check_triggering_units(
1918 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1919 _cleanup_free_ char *path = NULL, *n = NULL, *state = NULL;
1920 _cleanup_strv_free_ char **triggered_by = NULL;
1921 bool print_warning_label = true;
1925 n = unit_name_mangle(name);
1929 path = unit_dbus_path_from_name(n);
1933 r = sd_bus_get_property_string(
1935 "org.freedesktop.systemd1",
1937 "org.freedesktop.systemd1.Unit",
1942 log_error("Failed to get load state of %s: %s", n, bus_error_message(&error, r));
1946 if (streq(state, "masked"))
1949 r = sd_bus_get_property_strv(
1951 "org.freedesktop.systemd1",
1953 "org.freedesktop.systemd1.Unit",
1958 log_error("Failed to get triggered by array of %s: %s", n, bus_error_message(&error, r));
1962 STRV_FOREACH(i, triggered_by) {
1963 r = check_one_unit(bus, *i, "active\0reloading\0", true);
1965 log_error("Failed to check unit: %s", strerror(-r));
1972 if (print_warning_label) {
1973 log_warning("Warning: Stopping %s, but it can still be activated by:", n);
1974 print_warning_label = false;
1977 log_warning(" %s", *i);
1983 static int start_unit_one(
1988 sd_bus_error *error,
1991 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1992 _cleanup_free_ char *n;
2001 n = unit_name_mangle(name);
2005 r = sd_bus_call_method(
2007 "org.freedesktop.systemd1",
2008 "/org/freedesktop/systemd1",
2009 "org.freedesktop.systemd1.Manager",
2015 if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
2016 /* There's always a fallback possible for
2017 * legacy actions. */
2018 return -EADDRNOTAVAIL;
2020 log_error("Failed to start %s: %s", name, bus_error_message(error, r));
2024 r = sd_bus_message_read(reply, "o", &path);
2026 return bus_log_parse_error(r);
2028 if (need_daemon_reload(bus, n) > 0)
2029 log_warning("Warning: Unit file of %s changed on disk, 'systemctl%s daemon-reload' recommended.",
2030 n, arg_scope == UNIT_FILE_SYSTEM ? "" : " --user");
2039 r = set_consume(s, p);
2047 static const struct {
2051 } action_table[_ACTION_MAX] = {
2052 [ACTION_HALT] = { SPECIAL_HALT_TARGET, "halt", "replace-irreversibly" },
2053 [ACTION_POWEROFF] = { SPECIAL_POWEROFF_TARGET, "poweroff", "replace-irreversibly" },
2054 [ACTION_REBOOT] = { SPECIAL_REBOOT_TARGET, "reboot", "replace-irreversibly" },
2055 [ACTION_KEXEC] = { SPECIAL_KEXEC_TARGET, "kexec", "replace-irreversibly" },
2056 [ACTION_RUNLEVEL2] = { SPECIAL_RUNLEVEL2_TARGET, NULL, "isolate" },
2057 [ACTION_RUNLEVEL3] = { SPECIAL_RUNLEVEL3_TARGET, NULL, "isolate" },
2058 [ACTION_RUNLEVEL4] = { SPECIAL_RUNLEVEL4_TARGET, NULL, "isolate" },
2059 [ACTION_RUNLEVEL5] = { SPECIAL_RUNLEVEL5_TARGET, NULL, "isolate" },
2060 [ACTION_RESCUE] = { SPECIAL_RESCUE_TARGET, "rescue", "isolate" },
2061 [ACTION_EMERGENCY] = { SPECIAL_EMERGENCY_TARGET, "emergency", "isolate" },
2062 [ACTION_DEFAULT] = { SPECIAL_DEFAULT_TARGET, "default", "isolate" },
2063 [ACTION_EXIT] = { SPECIAL_EXIT_TARGET, "exit", "replace-irreversibly" },
2064 [ACTION_SUSPEND] = { SPECIAL_SUSPEND_TARGET, "suspend", "replace-irreversibly" },
2065 [ACTION_HIBERNATE] = { SPECIAL_HIBERNATE_TARGET, "hibernate", "replace-irreversibly" },
2066 [ACTION_HYBRID_SLEEP] = { SPECIAL_HYBRID_SLEEP_TARGET, "hybrid-sleep", "replace-irreversibly" },
2069 static enum action verb_to_action(const char *verb) {
2072 for (i = _ACTION_INVALID; i < _ACTION_MAX; i++)
2073 if (streq_ptr(action_table[i].verb, verb))
2076 return _ACTION_INVALID;
2079 static int start_unit(sd_bus *bus, char **args) {
2080 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2081 _cleanup_set_free_free_ Set *s = NULL;
2082 const char *method, *mode, *one_name;
2088 ask_password_agent_open_if_enabled();
2090 if (arg_action == ACTION_SYSTEMCTL) {
2093 streq(args[0], "stop") ||
2094 streq(args[0], "condstop") ? "StopUnit" :
2095 streq(args[0], "reload") ? "ReloadUnit" :
2096 streq(args[0], "restart") ? "RestartUnit" :
2098 streq(args[0], "try-restart") ||
2099 streq(args[0], "condrestart") ? "TryRestartUnit" :
2101 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
2103 streq(args[0], "reload-or-try-restart") ||
2104 streq(args[0], "condreload") ||
2105 streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" :
2107 action = verb_to_action(args[0]);
2109 mode = streq(args[0], "isolate") ? "isolate" :
2110 action_table[action].mode ?: arg_job_mode;
2112 one_name = action_table[action].target;
2114 assert(arg_action < ELEMENTSOF(action_table));
2115 assert(action_table[arg_action].target);
2117 method = "StartUnit";
2119 mode = action_table[arg_action].mode;
2120 one_name = action_table[arg_action].target;
2123 if (!arg_no_block) {
2124 r = enable_wait_for_jobs(bus);
2126 log_error("Could not watch jobs: %s", strerror(-r));
2130 s = set_new(string_hash_func, string_compare_func);
2136 r = start_unit_one(bus, method, one_name, mode, &error, s);
2138 r = translate_bus_error_to_exit_status(r, &error);
2142 STRV_FOREACH(name, args+1) {
2145 q = start_unit_one(bus, method, *name, mode, &error, s);
2147 r = translate_bus_error_to_exit_status(r, &error);
2148 sd_bus_error_free(&error);
2153 if (!arg_no_block) {
2156 q = wait_for_jobs(bus, s);
2160 /* When stopping units, warn if they can still be triggered by
2161 * another active unit (socket, path, timer) */
2162 if (!arg_quiet && streq(method, "StopUnit")) {
2164 check_triggering_units(bus, one_name);
2166 STRV_FOREACH(name, args+1)
2167 check_triggering_units(bus, *name);
2174 /* Ask systemd-logind, which might grant access to unprivileged users
2175 * through PolicyKit */
2176 static int reboot_with_logind(sd_bus *bus, enum action a) {
2178 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2185 polkit_agent_open_if_enabled();
2193 case ACTION_POWEROFF:
2194 method = "PowerOff";
2197 case ACTION_SUSPEND:
2201 case ACTION_HIBERNATE:
2202 method = "Hibernate";
2205 case ACTION_HYBRID_SLEEP:
2206 method = "HybridSleep";
2213 r = sd_bus_call_method(
2215 "org.freedesktop.login1",
2216 "/org/freedesktop/login1",
2217 "org.freedesktop.login1.Manager",
2223 log_error("Failed to execute operation: %s", bus_error_message(&error, r));
2231 static int check_inhibitors(sd_bus *bus, enum action a) {
2233 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2234 _cleanup_strv_free_ char **sessions = NULL;
2235 const char *what, *who, *why, *mode;
2244 if (arg_ignore_inhibitors || arg_force > 0)
2256 r = sd_bus_call_method(
2258 "org.freedesktop.login1",
2259 "/org/freedesktop/login1",
2260 "org.freedesktop.login1.Manager",
2266 /* If logind is not around, then there are no inhibitors... */
2269 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssuu)");
2271 return bus_log_parse_error(r);
2273 while ((r = sd_bus_message_read(reply, "(ssssuu)", &what, &who, &why, &mode, &uid, &pid)) > 0) {
2274 _cleanup_free_ char *comm = NULL, *user = NULL;
2275 _cleanup_strv_free_ char **sv = NULL;
2277 if (!streq(mode, "block"))
2280 sv = strv_split(what, ":");
2284 if (!strv_contains(sv,
2286 a == ACTION_POWEROFF ||
2287 a == ACTION_REBOOT ||
2288 a == ACTION_KEXEC ? "shutdown" : "sleep"))
2291 get_process_comm(pid, &comm);
2292 user = uid_to_name(uid);
2294 log_warning("Operation inhibited by \"%s\" (PID %lu \"%s\", user %s), reason is \"%s\".",
2295 who, (unsigned long) pid, strna(comm), strna(user), why);
2300 return bus_log_parse_error(r);
2302 r = sd_bus_message_exit_container(reply);
2304 return bus_log_parse_error(r);
2306 /* Check for current sessions */
2307 sd_get_sessions(&sessions);
2308 STRV_FOREACH(s, sessions) {
2309 _cleanup_free_ char *type = NULL, *tty = NULL, *seat = NULL, *user = NULL, *service = NULL, *class = NULL;
2311 if (sd_session_get_uid(*s, &uid) < 0 || uid == getuid())
2314 if (sd_session_get_class(*s, &class) < 0 || !streq(class, "user"))
2317 if (sd_session_get_type(*s, &type) < 0 || (!streq(type, "x11") && !streq(type, "tty")))
2320 sd_session_get_tty(*s, &tty);
2321 sd_session_get_seat(*s, &seat);
2322 sd_session_get_service(*s, &service);
2323 user = uid_to_name(uid);
2325 log_warning("User %s is logged in on %s.", strna(user), isempty(tty) ? (isempty(seat) ? strna(service) : seat) : tty);
2332 log_error("Please retry operation after closing inhibitors and logging out other users.\nAlternatively, ignore inhibitors and users with 'systemctl %s -i'.",
2333 action_table[a].verb);
2341 static int start_special(sd_bus *bus, char **args) {
2347 a = verb_to_action(args[0]);
2349 r = check_inhibitors(bus, a);
2353 if (arg_force >= 2 && geteuid() != 0) {
2354 log_error("Must be root.");
2358 if (arg_force >= 2 &&
2359 (a == ACTION_HALT ||
2360 a == ACTION_POWEROFF ||
2361 a == ACTION_REBOOT))
2364 if (arg_force >= 1 &&
2365 (a == ACTION_HALT ||
2366 a == ACTION_POWEROFF ||
2367 a == ACTION_REBOOT ||
2368 a == ACTION_KEXEC ||
2370 return daemon_reload(bus, args);
2372 /* first try logind, to allow authentication with polkit */
2373 if (geteuid() != 0 &&
2374 (a == ACTION_POWEROFF ||
2375 a == ACTION_REBOOT ||
2376 a == ACTION_SUSPEND ||
2377 a == ACTION_HIBERNATE ||
2378 a == ACTION_HYBRID_SLEEP)) {
2379 r = reboot_with_logind(bus, a);
2384 r = start_unit(bus, args);
2385 if (r == EXIT_SUCCESS)
2391 static int check_unit_active(sd_bus *bus, char **args) {
2393 int r = 3; /* According to LSB: "program is not running" */
2398 STRV_FOREACH(name, args+1) {
2401 state = check_one_unit(bus, *name, "active\0reloading\0", arg_quiet);
2411 static int check_unit_failed(sd_bus *bus, char **args) {
2418 STRV_FOREACH(name, args+1) {
2421 state = check_one_unit(bus, *name, "failed\0", arg_quiet);
2431 static int kill_unit(sd_bus *bus, char **args) {
2432 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2440 arg_kill_who = "all";
2442 STRV_FOREACH(name, args+1) {
2443 _cleanup_free_ char *n = NULL;
2445 n = unit_name_mangle(*name);
2449 r = sd_bus_call_method(
2451 "org.freedesktop.systemd1",
2452 "/org/freedesktop/systemd1",
2453 "org.freedesktop.systemd1.Manager",
2457 "ssi", n, arg_kill_who, arg_signal);
2459 log_error("Failed to kill unit %s: %s", n, bus_error_message(&error, r));
2467 typedef struct ExecStatusInfo {
2475 usec_t start_timestamp;
2476 usec_t exit_timestamp;
2481 LIST_FIELDS(struct ExecStatusInfo, exec);
2484 static void exec_status_info_free(ExecStatusInfo *i) {
2493 static int exec_status_info_deserialize(sd_bus_message *m, ExecStatusInfo *i) {
2494 uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
2497 int32_t code, status;
2503 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_STRUCT, "sasbttttuii");
2505 return bus_log_parse_error(r);
2509 r = sd_bus_message_read(m, "s", &path);
2511 return bus_log_parse_error(r);
2513 i->path = strdup(path);
2517 r = sd_bus_message_read_strv(m, &i->argv);
2519 return bus_log_parse_error(r);
2521 r = sd_bus_message_read(m,
2524 &start_timestamp, &start_timestamp_monotonic,
2525 &exit_timestamp, &exit_timestamp_monotonic,
2529 return bus_log_parse_error(r);
2532 i->start_timestamp = (usec_t) start_timestamp;
2533 i->exit_timestamp = (usec_t) exit_timestamp;
2534 i->pid = (pid_t) pid;
2538 r = sd_bus_message_exit_container(m);
2540 return bus_log_parse_error(r);
2545 typedef struct UnitStatusInfo {
2547 const char *load_state;
2548 const char *active_state;
2549 const char *sub_state;
2550 const char *unit_file_state;
2552 const char *description;
2553 const char *following;
2555 char **documentation;
2557 const char *fragment_path;
2558 const char *source_path;
2559 const char *control_group;
2561 char **dropin_paths;
2563 const char *load_error;
2566 usec_t inactive_exit_timestamp;
2567 usec_t inactive_exit_timestamp_monotonic;
2568 usec_t active_enter_timestamp;
2569 usec_t active_exit_timestamp;
2570 usec_t inactive_enter_timestamp;
2572 bool need_daemon_reload;
2577 const char *status_text;
2578 const char *pid_file;
2581 usec_t start_timestamp;
2582 usec_t exit_timestamp;
2584 int exit_code, exit_status;
2586 usec_t condition_timestamp;
2587 bool condition_result;
2588 bool failed_condition_trigger;
2589 bool failed_condition_negate;
2590 const char *failed_condition;
2591 const char *failed_condition_param;
2594 unsigned n_accepted;
2595 unsigned n_connections;
2598 /* Pairs of type, path */
2602 const char *sysfs_path;
2604 /* Mount, Automount */
2610 LIST_HEAD(ExecStatusInfo, exec);
2613 static void print_status_info(
2618 const char *on, *off, *ss;
2620 char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1;
2621 char since2[FORMAT_TIMESTAMP_MAX], *s2;
2624 arg_all * OUTPUT_SHOW_ALL |
2625 (!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
2626 on_tty() * OUTPUT_COLOR |
2627 !arg_quiet * OUTPUT_WARN_CUTOFF |
2628 arg_full * OUTPUT_FULL_WIDTH;
2633 /* This shows pretty information about a unit. See
2634 * print_property() for a low-level property printer */
2636 printf("%s", strna(i->id));
2638 if (i->description && !streq_ptr(i->id, i->description))
2639 printf(" - %s", i->description);
2644 printf(" Follow: unit currently follows state of %s\n", i->following);
2646 if (streq_ptr(i->load_state, "error")) {
2647 on = ansi_highlight_red();
2648 off = ansi_highlight_off();
2652 path = i->source_path ? i->source_path : i->fragment_path;
2655 printf(" Loaded: %s%s%s (Reason: %s)\n",
2656 on, strna(i->load_state), off, i->load_error);
2657 else if (path && i->unit_file_state)
2658 printf(" Loaded: %s%s%s (%s; %s)\n",
2659 on, strna(i->load_state), off, path, i->unit_file_state);
2661 printf(" Loaded: %s%s%s (%s)\n",
2662 on, strna(i->load_state), off, path);
2664 printf(" Loaded: %s%s%s\n",
2665 on, strna(i->load_state), off);
2667 if (!strv_isempty(i->dropin_paths)) {
2668 _cleanup_free_ char *dir = NULL;
2672 STRV_FOREACH(dropin, i->dropin_paths) {
2673 if (! dir || last) {
2674 printf(dir ? " " : " Drop-In: ");
2679 if (path_get_parent(*dropin, &dir) < 0) {
2684 printf("%s\n %s", dir,
2685 draw_special_char(DRAW_TREE_RIGHT));
2688 last = ! (*(dropin + 1) && startswith(*(dropin + 1), dir));
2690 printf("%s%s", path_get_file_name(*dropin), last ? "\n" : ", ");
2694 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
2696 if (streq_ptr(i->active_state, "failed")) {
2697 on = ansi_highlight_red();
2698 off = ansi_highlight_off();
2699 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
2700 on = ansi_highlight_green();
2701 off = ansi_highlight_off();
2706 printf(" Active: %s%s (%s)%s",
2707 on, strna(i->active_state), ss, off);
2709 printf(" Active: %s%s%s",
2710 on, strna(i->active_state), off);
2712 if (!isempty(i->result) && !streq(i->result, "success"))
2713 printf(" (Result: %s)", i->result);
2715 timestamp = (streq_ptr(i->active_state, "active") ||
2716 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
2717 (streq_ptr(i->active_state, "inactive") ||
2718 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
2719 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
2720 i->active_exit_timestamp;
2722 s1 = format_timestamp_relative(since1, sizeof(since1), timestamp);
2723 s2 = format_timestamp(since2, sizeof(since2), timestamp);
2726 printf(" since %s; %s\n", s2, s1);
2728 printf(" since %s\n", s2);
2732 if (!i->condition_result && i->condition_timestamp > 0) {
2733 s1 = format_timestamp_relative(since1, sizeof(since1), i->condition_timestamp);
2734 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
2736 printf(" start condition failed at %s%s%s\n",
2737 s2, s1 ? "; " : "", s1 ? s1 : "");
2738 if (i->failed_condition_trigger)
2739 printf(" none of the trigger conditions were met\n");
2740 else if (i->failed_condition)
2741 printf(" %s=%s%s was not met\n",
2742 i->failed_condition,
2743 i->failed_condition_negate ? "!" : "",
2744 i->failed_condition_param);
2748 printf(" Device: %s\n", i->sysfs_path);
2750 printf(" Where: %s\n", i->where);
2752 printf(" What: %s\n", i->what);
2754 STRV_FOREACH(t, i->documentation)
2755 printf(" %*s %s\n", 9, t == i->documentation ? "Docs:" : "", *t);
2757 STRV_FOREACH_PAIR(t, t2, i->listen)
2758 printf(" %*s %s (%s)\n", 9, t == i->listen ? "Listen:" : "", *t2, *t);
2761 printf(" Accepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
2763 LIST_FOREACH(exec, p, i->exec) {
2764 _cleanup_free_ char *argv = NULL;
2767 /* Only show exited processes here */
2771 argv = strv_join(p->argv, " ");
2772 printf(" Process: %u %s=%s ", p->pid, p->name, strna(argv));
2774 good = is_clean_exit_lsb(p->code, p->status, NULL);
2776 on = ansi_highlight_red();
2777 off = ansi_highlight_off();
2781 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
2783 if (p->code == CLD_EXITED) {
2786 printf("status=%i", p->status);
2788 c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD);
2793 printf("signal=%s", signal_to_string(p->status));
2795 printf(")%s\n", off);
2797 if (i->main_pid == p->pid &&
2798 i->start_timestamp == p->start_timestamp &&
2799 i->exit_timestamp == p->start_timestamp)
2800 /* Let's not show this twice */
2803 if (p->pid == i->control_pid)
2807 if (i->main_pid > 0 || i->control_pid > 0) {
2808 if (i->main_pid > 0) {
2809 printf(" Main PID: %u", (unsigned) i->main_pid);
2812 _cleanup_free_ char *comm = NULL;
2813 get_process_comm(i->main_pid, &comm);
2815 printf(" (%s)", comm);
2816 } else if (i->exit_code > 0) {
2817 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
2819 if (i->exit_code == CLD_EXITED) {
2822 printf("status=%i", i->exit_status);
2824 c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD);
2829 printf("signal=%s", signal_to_string(i->exit_status));
2833 if (i->control_pid > 0)
2837 if (i->control_pid > 0) {
2838 _cleanup_free_ char *c = NULL;
2840 printf(" %8s: %u", i->main_pid ? "" : " Control", (unsigned) i->control_pid);
2842 get_process_comm(i->control_pid, &c);
2851 printf(" Status: \"%s\"\n", i->status_text);
2853 if (i->control_group &&
2854 (i->main_pid > 0 || i->control_pid > 0 || cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, i->control_group, false) == 0)) {
2857 printf(" CGroup: %s\n", i->control_group);
2859 if (arg_transport == BUS_TRANSPORT_LOCAL || arg_transport == BUS_TRANSPORT_CONTAINER) {
2862 char prefix[] = " ";
2865 if (c > sizeof(prefix) - 1)
2866 c -= sizeof(prefix) - 1;
2870 if (i->main_pid > 0)
2871 extra[k++] = i->main_pid;
2873 if (i->control_pid > 0)
2874 extra[k++] = i->control_pid;
2876 show_cgroup_and_extra(SYSTEMD_CGROUP_CONTROLLER, i->control_group, prefix,
2877 c, false, extra, k, flags);
2881 if (i->id && arg_transport == BUS_TRANSPORT_LOCAL) {
2883 show_journal_by_unit(stdout,
2887 i->inactive_exit_timestamp_monotonic,
2891 arg_scope == UNIT_FILE_SYSTEM,
2895 if (i->need_daemon_reload)
2896 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %sdaemon-reload' recommended.\n",
2897 ansi_highlight_red(),
2898 ansi_highlight_off(),
2899 arg_scope == UNIT_FILE_SYSTEM ? "" : "--user ");
2902 static void show_unit_help(UnitStatusInfo *i) {
2907 if (!i->documentation) {
2908 log_info("Documentation for %s not known.", i->id);
2912 STRV_FOREACH(p, i->documentation) {
2914 if (startswith(*p, "man:")) {
2915 const char *args[4] = { "man", NULL, NULL, NULL };
2916 _cleanup_free_ char *page = NULL, *section = NULL;
2923 if ((*p)[k-1] == ')')
2924 e = strrchr(*p, '(');
2927 page = strndup((*p) + 4, e - *p - 4);
2928 section = strndup(e + 1, *p + k - e - 2);
2929 if (!page || !section) {
2941 log_error("Failed to fork: %m");
2947 execvp(args[0], (char**) args);
2948 log_error("Failed to execute man: %m");
2949 _exit(EXIT_FAILURE);
2952 wait_for_terminate(pid, NULL);
2954 log_info("Can't show: %s", *p);
2958 static int status_property(const char *name, sd_bus_message *m, UnitStatusInfo *i, const char *contents) {
2965 switch (contents[0]) {
2967 case SD_BUS_TYPE_STRING: {
2970 r = sd_bus_message_read(m, "s", &s);
2972 return bus_log_parse_error(r);
2975 if (streq(name, "Id"))
2977 else if (streq(name, "LoadState"))
2979 else if (streq(name, "ActiveState"))
2980 i->active_state = s;
2981 else if (streq(name, "SubState"))
2983 else if (streq(name, "Description"))
2985 else if (streq(name, "FragmentPath"))
2986 i->fragment_path = s;
2987 else if (streq(name, "SourcePath"))
2990 else if (streq(name, "DefaultControlGroup")) {
2992 e = startswith(s, SYSTEMD_CGROUP_CONTROLLER ":");
2994 i->control_group = e;
2997 else if (streq(name, "ControlGroup"))
2998 i->control_group = s;
2999 else if (streq(name, "StatusText"))
3001 else if (streq(name, "PIDFile"))
3003 else if (streq(name, "SysFSPath"))
3005 else if (streq(name, "Where"))
3007 else if (streq(name, "What"))
3009 else if (streq(name, "Following"))
3011 else if (streq(name, "UnitFileState"))
3012 i->unit_file_state = s;
3013 else if (streq(name, "Result"))
3020 case SD_BUS_TYPE_BOOLEAN: {
3023 r = sd_bus_message_read(m, "b", &b);
3025 return bus_log_parse_error(r);
3027 if (streq(name, "Accept"))
3029 else if (streq(name, "NeedDaemonReload"))
3030 i->need_daemon_reload = b;
3031 else if (streq(name, "ConditionResult"))
3032 i->condition_result = b;
3037 case SD_BUS_TYPE_UINT32: {
3040 r = sd_bus_message_read(m, "u", &u);
3042 return bus_log_parse_error(r);
3044 if (streq(name, "MainPID")) {
3046 i->main_pid = (pid_t) u;
3049 } else if (streq(name, "ControlPID"))
3050 i->control_pid = (pid_t) u;
3051 else if (streq(name, "ExecMainPID")) {
3053 i->main_pid = (pid_t) u;
3054 } else if (streq(name, "NAccepted"))
3056 else if (streq(name, "NConnections"))
3057 i->n_connections = u;
3062 case SD_BUS_TYPE_INT32: {
3065 r = sd_bus_message_read(m, "i", &j);
3067 return bus_log_parse_error(r);
3069 if (streq(name, "ExecMainCode"))
3070 i->exit_code = (int) j;
3071 else if (streq(name, "ExecMainStatus"))
3072 i->exit_status = (int) j;
3077 case SD_BUS_TYPE_UINT64: {
3080 r = sd_bus_message_read(m, "t", &u);
3082 return bus_log_parse_error(r);
3084 if (streq(name, "ExecMainStartTimestamp"))
3085 i->start_timestamp = (usec_t) u;
3086 else if (streq(name, "ExecMainExitTimestamp"))
3087 i->exit_timestamp = (usec_t) u;
3088 else if (streq(name, "ActiveEnterTimestamp"))
3089 i->active_enter_timestamp = (usec_t) u;
3090 else if (streq(name, "InactiveEnterTimestamp"))
3091 i->inactive_enter_timestamp = (usec_t) u;
3092 else if (streq(name, "InactiveExitTimestamp"))
3093 i->inactive_exit_timestamp = (usec_t) u;
3094 else if (streq(name, "InactiveExitTimestampMonotonic"))
3095 i->inactive_exit_timestamp_monotonic = (usec_t) u;
3096 else if (streq(name, "ActiveExitTimestamp"))
3097 i->active_exit_timestamp = (usec_t) u;
3098 else if (streq(name, "ConditionTimestamp"))
3099 i->condition_timestamp = (usec_t) u;
3104 case SD_BUS_TYPE_ARRAY:
3106 if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && startswith(name, "Exec")) {
3107 _cleanup_free_ ExecStatusInfo *info = NULL;
3109 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sasbttttuii)");
3111 return bus_log_parse_error(r);
3113 info = new0(ExecStatusInfo, 1);
3117 while ((r = exec_status_info_deserialize(m, info)) > 0) {
3119 info->name = strdup(name);
3123 LIST_PREPEND(exec, i->exec, info);
3125 info = new0(ExecStatusInfo, 1);
3131 return bus_log_parse_error(r);
3133 r = sd_bus_message_exit_container(m);
3135 return bus_log_parse_error(r);
3139 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Listen")) {
3140 const char *type, *path;
3142 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
3144 return bus_log_parse_error(r);
3146 while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0) {
3148 r = strv_extend(&i->listen, type);
3152 r = strv_extend(&i->listen, path);
3157 return bus_log_parse_error(r);
3159 r = sd_bus_message_exit_container(m);
3161 return bus_log_parse_error(r);
3165 } else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "DropInPaths")) {
3167 r = sd_bus_message_read_strv(m, &i->dropin_paths);
3169 return bus_log_parse_error(r);
3171 } else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "Documentation")) {
3173 r = sd_bus_message_read_strv(m, &i->documentation);
3175 return bus_log_parse_error(r);
3177 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Conditions")) {
3178 const char *cond, *param;
3179 int trigger, negate;
3182 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sbbsi)");
3184 return bus_log_parse_error(r);
3186 while ((r = sd_bus_message_read(m, "(sbbsi)", &cond, &trigger, &negate, ¶m, &state)) > 0) {
3187 log_debug("%s %d %d %s %d", cond, trigger, negate, param, state);
3188 if (state < 0 && (!trigger || !i->failed_condition)) {
3189 i->failed_condition = cond;
3190 i->failed_condition_trigger = trigger;
3191 i->failed_condition_negate = negate;
3192 i->failed_condition_param = param;
3196 return bus_log_parse_error(r);
3198 r = sd_bus_message_exit_container(m);
3200 return bus_log_parse_error(r);
3207 case SD_BUS_TYPE_STRUCT_BEGIN:
3209 if (streq(name, "LoadError")) {
3210 const char *n, *message;
3212 r = sd_bus_message_read(m, "(ss)", &n, &message);
3214 return bus_log_parse_error(r);
3216 if (!isempty(message))
3217 i->load_error = message;
3230 r = sd_bus_message_skip(m, contents);
3232 return bus_log_parse_error(r);
3237 static int print_property(const char *name, sd_bus_message *m, const char *contents) {
3243 /* This is a low-level property printer, see
3244 * print_status_info() for the nicer output */
3246 if (arg_properties && !strv_find(arg_properties, name)) {
3247 /* skip what we didn't read */
3248 r = sd_bus_message_skip(m, contents);
3252 switch (contents[0]) {
3254 case SD_BUS_TYPE_STRUCT_BEGIN:
3256 if (contents[1] == SD_BUS_TYPE_UINT32 && streq(name, "Job")) {
3259 r = sd_bus_message_read(m, "(uo)", &u, NULL);
3261 return bus_log_parse_error(r);
3264 printf("%s=%u\n", name, (unsigned) u);
3266 printf("%s=\n", name);
3270 } else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "Unit")) {
3273 r = sd_bus_message_read(m, "(so)", &s, NULL);
3275 return bus_log_parse_error(r);
3277 if (arg_all || !isempty(s))
3278 printf("%s=%s\n", name, s);
3282 } else if (contents[1] == SD_BUS_TYPE_STRING && streq(name, "LoadError")) {
3283 const char *a = NULL, *b = NULL;
3285 r = sd_bus_message_read(m, "(ss)", &a, &b);
3287 return bus_log_parse_error(r);
3289 if (arg_all || !isempty(a) || !isempty(b))
3290 printf("%s=%s \"%s\"\n", name, strempty(a), strempty(b));
3297 case SD_BUS_TYPE_ARRAY:
3299 if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "EnvironmentFiles")) {
3303 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sb)");
3305 return bus_log_parse_error(r);
3307 while ((r = sd_bus_message_read(m, "(sb)", &path, &ignore)) > 0)
3308 printf("EnvironmentFile=%s (ignore_errors=%s)\n", path, yes_no(ignore));
3311 return bus_log_parse_error(r);
3313 r = sd_bus_message_exit_container(m);
3315 return bus_log_parse_error(r);
3319 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Paths")) {
3320 const char *type, *path;
3322 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
3324 return bus_log_parse_error(r);
3326 while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0)
3327 printf("%s=%s\n", type, path);
3329 return bus_log_parse_error(r);
3331 r = sd_bus_message_exit_container(m);
3333 return bus_log_parse_error(r);
3337 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Listen")) {
3338 const char *type, *path;
3340 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
3342 return bus_log_parse_error(r);
3344 while ((r = sd_bus_message_read(m, "(ss)", &type, &path)) > 0)
3345 printf("Listen%s=%s\n", type, path);
3347 return bus_log_parse_error(r);
3349 r = sd_bus_message_exit_container(m);
3351 return bus_log_parse_error(r);
3355 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "Timers")) {
3357 uint64_t value, next_elapse;
3359 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(stt)");
3361 return bus_log_parse_error(r);
3363 while ((r = sd_bus_message_read(m, "(stt)", &base, &value, &next_elapse)) > 0) {
3364 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
3366 printf("%s={ value=%s ; next_elapse=%s }\n",
3368 format_timespan(timespan1, sizeof(timespan1), value, 0),
3369 format_timespan(timespan2, sizeof(timespan2), next_elapse, 0));
3372 return bus_log_parse_error(r);
3374 r = sd_bus_message_exit_container(m);
3376 return bus_log_parse_error(r);
3380 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && startswith(name, "Exec")) {
3381 ExecStatusInfo info = {};
3383 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sasbttttuii)");
3385 return bus_log_parse_error(r);
3387 while ((r = exec_status_info_deserialize(m, &info)) > 0) {
3388 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
3389 _cleanup_free_ char *tt;
3391 tt = strv_join(info.argv, " ");
3393 printf("%s={ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
3397 yes_no(info.ignore),
3398 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
3399 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
3400 (unsigned) info. pid,
3401 sigchld_code_to_string(info.code),
3403 info.code == CLD_EXITED ? "" : "/",
3404 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
3407 strv_free(info.argv);
3411 r = sd_bus_message_exit_container(m);
3413 return bus_log_parse_error(r);
3417 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "DeviceAllow")) {
3418 const char *path, *rwm;
3420 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(ss)");
3422 return bus_log_parse_error(r);
3424 while ((r = sd_bus_message_read(m, "(ss)", &path, &rwm)) > 0)
3425 printf("%s=%s %s\n", name, strna(path), strna(rwm));
3427 return bus_log_parse_error(r);
3429 r = sd_bus_message_exit_container(m);
3431 return bus_log_parse_error(r);
3435 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && streq(name, "BlockIODeviceWeight")) {
3439 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(st)");
3441 return bus_log_parse_error(r);
3443 while ((r = sd_bus_message_read(m, "(st)", &path, &weight)) > 0)
3444 printf("%s=%s %" PRIu64 "\n", name, strna(path), weight);
3446 return bus_log_parse_error(r);
3448 r = sd_bus_message_exit_container(m);
3450 return bus_log_parse_error(r);
3454 } else if (contents[1] == SD_BUS_TYPE_STRUCT_BEGIN && (streq(name, "BlockIOReadBandwidth") || streq(name, "BlockIOWriteBandwidth"))) {
3458 r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(st)");
3460 return bus_log_parse_error(r);
3462 while ((r = sd_bus_message_read(m, "(st)", &path, &bandwidth)) > 0)
3463 printf("%s=%s %" PRIu64 "\n", name, strna(path), bandwidth);
3465 return bus_log_parse_error(r);
3467 r = sd_bus_message_exit_container(m);
3469 return bus_log_parse_error(r);
3477 r = bus_print_property(name, m, arg_all);
3479 return bus_log_parse_error(r);
3482 r = sd_bus_message_skip(m, contents);
3484 return bus_log_parse_error(r);
3487 printf("%s=[unprintable]\n", name);
3493 static int show_one(
3497 bool show_properties,
3501 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
3502 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
3503 UnitStatusInfo info = {};
3510 r = sd_bus_call_method(
3512 "org.freedesktop.systemd1",
3514 "org.freedesktop.DBus.Properties",
3520 log_error("Failed to get properties: %s", bus_error_message(&error, r));
3524 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "{sv}");
3526 return bus_log_parse_error(r);
3533 while ((r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_DICT_ENTRY, "sv")) > 0) {
3534 const char *name, *contents;
3536 r = sd_bus_message_read(reply, "s", &name);
3538 return bus_log_parse_error(r);
3540 r = sd_bus_message_peek_type(reply, NULL, &contents);
3542 return bus_log_parse_error(r);
3544 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_VARIANT, contents);
3546 return bus_log_parse_error(r);
3548 if (show_properties)
3549 r = print_property(name, reply, contents);
3551 r = status_property(name, reply, &info, contents);
3555 r = sd_bus_message_exit_container(reply);
3557 return bus_log_parse_error(r);
3559 r = sd_bus_message_exit_container(reply);
3561 return bus_log_parse_error(r);
3564 return bus_log_parse_error(r);
3566 r = sd_bus_message_exit_container(reply);
3568 return bus_log_parse_error(r);
3572 if (!show_properties) {
3573 if (streq(verb, "help"))
3574 show_unit_help(&info);
3576 print_status_info(&info, ellipsized);
3579 strv_free(info.documentation);
3580 strv_free(info.dropin_paths);
3581 strv_free(info.listen);
3583 if (!streq_ptr(info.active_state, "active") &&
3584 !streq_ptr(info.active_state, "reloading") &&
3585 streq(verb, "status")) {
3586 /* According to LSB: "program not running" */
3587 /* 0: program is running or service is OK
3588 * 1: program is dead and /var/run pid file exists
3589 * 2: program is dead and /var/lock lock file exists
3590 * 3: program is not running
3591 * 4: program or service status is unknown
3593 if (info.pid_file && access(info.pid_file, F_OK) == 0)
3599 while ((p = info.exec)) {
3600 LIST_REMOVE(exec, info.exec, p);
3601 exec_status_info_free(p);
3607 static int get_unit_dbus_path_by_pid(
3612 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
3613 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
3616 r = sd_bus_call_method(
3618 "org.freedesktop.systemd1",
3619 "/org/freedesktop/systemd1",
3620 "org.freedesktop.systemd1.Manager",
3626 log_error("Failed to get unit for PID %lu: %s", (unsigned long) pid, bus_error_message(&error, r));
3630 r = sd_bus_message_read(reply, "o", unit);
3632 return bus_log_parse_error(r);
3637 static int show_all(
3640 bool show_properties,
3644 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
3645 _cleanup_free_ UnitInfo *unit_infos = NULL;
3650 r = get_unit_list(bus, &reply, &unit_infos);
3654 pager_open_if_enabled();
3658 qsort_safe(unit_infos, c, sizeof(UnitInfo), compare_unit_info);
3660 for (u = unit_infos; u < unit_infos + c; u++) {
3661 _cleanup_free_ char *p = NULL;
3663 if (!output_show_unit(u))
3666 p = unit_dbus_path_from_name(u->id);
3670 r = show_one(verb, bus, p, show_properties, new_line, ellipsized);
3678 static int cat(sd_bus *bus, char **args) {
3682 _cleanup_free_ char *unit = NULL, *n = NULL;
3687 pager_open_if_enabled();
3689 STRV_FOREACH(name, args+1) {
3690 _cleanup_free_ char *fragment_path = NULL;
3691 _cleanup_strv_free_ char **dropin_paths = NULL;
3696 n = unit_name_mangle(*name);
3700 unit = unit_dbus_path_from_name(n);
3704 if (need_daemon_reload(bus, n) > 0)
3705 log_warning("Unit file of %s changed on disk. Run 'systemctl%s daemon-reload'.",
3706 n, arg_scope == UNIT_FILE_SYSTEM ? "" : " --user");
3708 r = sd_bus_get_property_string(
3710 "org.freedesktop.systemd1",
3712 "org.freedesktop.systemd1.Unit",
3717 log_warning("Failed to get FragmentPath: %s", bus_error_message(&error, r));
3721 r = sd_bus_get_property_strv(
3723 "org.freedesktop.systemd1",
3725 "org.freedesktop.systemd1.Unit",
3730 log_warning("Failed to get DropInPaths: %s", bus_error_message(&error, r));
3734 stdout = fdopen(STDOUT_FILENO, "a");
3736 if (!isempty(fragment_path)) {
3737 fprintf(stdout, "# %s\n", fragment_path);
3739 r = sendfile_full(STDOUT_FILENO, fragment_path);
3741 log_warning("Failed to cat %s: %s", fragment_path, strerror(-r));
3746 STRV_FOREACH(path, dropin_paths) {
3747 fprintf(stdout, "%s# %s\n",
3748 isempty(fragment_path) && path == dropin_paths ? "" : "\n",
3751 r = sendfile_full(STDOUT_FILENO, *path);
3753 log_warning("Failed to cat %s: %s", *path, strerror(-r));
3762 static int show(sd_bus *bus, char **args) {
3764 bool show_properties, show_status, new_line = false;
3766 bool ellipsized = false;
3771 show_properties = streq(args[0], "show");
3772 show_status = streq(args[0], "status");
3774 if (show_properties)
3775 pager_open_if_enabled();
3777 /* If no argument is specified inspect the manager itself */
3779 if (show_properties && strv_length(args) <= 1)
3780 return show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line, &ellipsized);
3782 if (show_status && strv_length(args) <= 1)
3783 ret = show_all(args[0], bus, false, &new_line, &ellipsized);
3785 STRV_FOREACH(name, args+1) {
3786 _cleanup_free_ char *unit = NULL;
3789 if (safe_atou32(*name, &id) < 0) {
3790 _cleanup_free_ char *n = NULL;
3791 /* Interpret as unit name */
3793 n = unit_name_mangle(*name);
3797 unit = unit_dbus_path_from_name(n);
3801 } else if (show_properties) {
3802 /* Interpret as job id */
3803 if (asprintf(&unit, "/org/freedesktop/systemd1/job/%u", id) < 0)
3807 /* Interpret as PID */
3808 r = get_unit_dbus_path_by_pid(bus, id, &unit);
3813 show_one(args[0], bus, unit, show_properties, &new_line, &ellipsized);
3816 if (ellipsized && !arg_quiet)
3817 printf("Hint: Some lines were ellipsized, use -l to show in full.\n");
3822 static int append_assignment(sd_bus_message *m, const char *assignment) {
3830 eq = strchr(assignment, '=');
3832 log_error("Not an assignment: %s", assignment);
3836 field = strndupa(assignment, eq - assignment);
3839 r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, field);
3841 return bus_log_create_error(r);
3843 if (streq(field, "CPUAccounting") ||
3844 streq(field, "MemoryAccounting") ||
3845 streq(field, "BlockIOAccounting")) {
3847 r = parse_boolean(eq);
3849 log_error("Failed to parse boolean assignment %s.", assignment);
3853 r = sd_bus_message_append(m, "v", "b", r);
3855 } else if (streq(field, "MemoryLimit")) {
3858 r = parse_bytes(eq, &bytes);
3860 log_error("Failed to parse bytes specification %s", assignment);
3864 r = sd_bus_message_append(m, "v", "t", (uint64_t) bytes);
3866 } else if (streq(field, "CPUShares") || streq(field, "BlockIOWeight")) {
3869 r = safe_atou64(eq, &u);
3871 log_error("Failed to parse %s value %s.", field, eq);
3875 r = sd_bus_message_append(m, "v", "t", u);
3877 } else if (streq(field, "DevicePolicy"))
3878 r = sd_bus_message_append(m, "v", "s", eq);
3880 else if (streq(field, "DeviceAllow")) {
3883 r = sd_bus_message_append(m, "v", "a(ss)", 0);
3885 const char *path, *rwm;
3888 e = strchr(eq, ' ');
3890 path = strndupa(eq, e - eq);
3897 if (!path_startswith(path, "/dev")) {
3898 log_error("%s is not a device file in /dev.", path);
3902 r = sd_bus_message_append(m, "v", "a(ss)", 1, path, rwm);
3905 } else if (streq(field, "BlockIOReadBandwidth") || streq(field, "BlockIOWriteBandwidth")) {
3908 r = sd_bus_message_append(m, "v", "a(st)", 0);
3910 const char *path, *bandwidth;
3914 e = strchr(eq, ' ');
3916 path = strndupa(eq, e - eq);
3919 log_error("Failed to parse %s value %s.", field, eq);
3923 if (!path_startswith(path, "/dev")) {
3924 log_error("%s is not a device file in /dev.", path);
3928 r = parse_bytes(bandwidth, &bytes);
3930 log_error("Failed to parse byte value %s.", bandwidth);
3934 r = sd_bus_message_append(m, "v", "a(st)", 1, path, (uint64_t) bytes);
3937 } else if (streq(field, "BlockIODeviceWeight")) {
3940 r = sd_bus_message_append(m, "v", "a(st)", 0);
3942 const char *path, *weight;
3946 e = strchr(eq, ' ');
3948 path = strndupa(eq, e - eq);
3951 log_error("Failed to parse %s value %s.", field, eq);
3955 if (!path_startswith(path, "/dev")) {
3956 log_error("%s is not a device file in /dev.", path);
3960 r = safe_atou64(weight, &u);
3962 log_error("Failed to parse %s value %s.", field, weight);
3965 r = sd_bus_message_append(m, "v", "a(st)", path, u);
3969 log_error("Unknown assignment %s.", assignment);
3974 return bus_log_create_error(r);
3979 static int set_property(sd_bus *bus, char **args) {
3980 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
3981 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
3982 _cleanup_free_ char *n = NULL;
3986 r = sd_bus_message_new_method_call(
3988 "org.freedesktop.systemd1",
3989 "/org/freedesktop/systemd1",
3990 "org.freedesktop.systemd1.Manager",
3991 "SetUnitProperties",
3994 return bus_log_create_error(r);
3996 n = unit_name_mangle(args[1]);
4000 r = sd_bus_message_append(m, "sb", n, arg_runtime);
4002 return bus_log_create_error(r);
4004 r = sd_bus_message_open_container(m, SD_BUS_TYPE_ARRAY, "(sv)");
4006 return bus_log_create_error(r);
4008 STRV_FOREACH(i, args + 2) {
4009 r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv");
4011 return bus_log_create_error(r);
4013 r = append_assignment(m, *i);
4017 r = sd_bus_message_close_container(m);
4019 return bus_log_create_error(r);
4022 r = sd_bus_message_close_container(m);
4024 return bus_log_create_error(r);
4026 r = sd_bus_call(bus, m, 0, &error, NULL);
4028 log_error("Failed to set unit properties on %s: %s", n, bus_error_message(&error, r));
4035 static int snapshot(sd_bus *bus, char **args) {
4036 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4037 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
4038 _cleanup_free_ char *n = NULL, *id = NULL;
4042 if (strv_length(args) > 1)
4043 n = unit_name_mangle_with_suffix(args[1], ".snapshot");
4049 r = sd_bus_call_method(
4051 "org.freedesktop.systemd1",
4052 "/org/freedesktop/systemd1",
4053 "org.freedesktop.systemd1.Manager",
4059 log_error("Failed to create snapshot: %s", bus_error_message(&error, r));
4063 r = sd_bus_message_read(reply, "o", &path);
4065 return bus_log_parse_error(r);
4067 r = sd_bus_get_property_string(
4069 "org.freedesktop.systemd1",
4071 "org.freedesktop.systemd1.Unit",
4076 log_error("Failed to get ID of snapshot: %s", bus_error_message(&error, r));
4086 static int delete_snapshot(sd_bus *bus, char **args) {
4087 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4093 STRV_FOREACH(name, args+1) {
4094 _cleanup_free_ char *n = NULL;
4096 n = unit_name_mangle_with_suffix(*name, ".snapshot");
4100 r = sd_bus_call_method(
4102 "org.freedesktop.systemd1",
4103 "/org/freedesktop/systemd1",
4104 "org.freedesktop.systemd1.Manager",
4110 log_error("Failed to remove snapshot %s: %s", n, bus_error_message(&error, r));
4118 static int daemon_reload(sd_bus *bus, char **args) {
4119 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4123 if (arg_action == ACTION_RELOAD)
4125 else if (arg_action == ACTION_REEXEC)
4126 method = "Reexecute";
4128 assert(arg_action == ACTION_SYSTEMCTL);
4131 streq(args[0], "clear-jobs") ||
4132 streq(args[0], "cancel") ? "ClearJobs" :
4133 streq(args[0], "daemon-reexec") ? "Reexecute" :
4134 streq(args[0], "reset-failed") ? "ResetFailed" :
4135 streq(args[0], "halt") ? "Halt" :
4136 streq(args[0], "poweroff") ? "PowerOff" :
4137 streq(args[0], "reboot") ? "Reboot" :
4138 streq(args[0], "kexec") ? "KExec" :
4139 streq(args[0], "exit") ? "Exit" :
4140 /* "daemon-reload" */ "Reload";
4143 r = sd_bus_call_method(
4145 "org.freedesktop.systemd1",
4146 "/org/freedesktop/systemd1",
4147 "org.freedesktop.systemd1.Manager",
4153 if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
4154 /* There's always a fallback possible for
4155 * legacy actions. */
4157 else if ((r == -ETIMEDOUT || r == -ECONNRESET) && streq(method, "Reexecute"))
4158 /* On reexecution, we expect a disconnect, not a
4162 log_error("Failed to execute operation: %s", bus_error_message(&error, r));
4164 return r < 0 ? r : 0;
4167 static int reset_failed(sd_bus *bus, char **args) {
4168 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4172 if (strv_length(args) <= 1)
4173 return daemon_reload(bus, args);
4175 STRV_FOREACH(name, args+1) {
4176 _cleanup_free_ char *n;
4178 n = unit_name_mangle(*name);
4182 r = sd_bus_call_method(
4184 "org.freedesktop.systemd1",
4185 "/org/freedesktop/systemd1",
4186 "org.freedesktop.systemd1.Manager",
4192 log_error("Failed to reset failed state of unit %s: %s", n, bus_error_message(&error, r));
4200 static int show_environment(sd_bus *bus, char **args) {
4201 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4202 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
4206 pager_open_if_enabled();
4208 r = sd_bus_get_property(
4210 "org.freedesktop.systemd1",
4211 "/org/freedesktop/systemd1",
4212 "org.freedesktop.systemd1.Manager",
4218 log_error("Failed to get environment: %s", bus_error_message(&error, r));
4222 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "s");
4224 return bus_log_parse_error(r);
4226 while ((r = sd_bus_message_read_basic(reply, SD_BUS_TYPE_STRING, &text)) > 0)
4229 return bus_log_parse_error(r);
4231 r = sd_bus_message_exit_container(reply);
4233 return bus_log_parse_error(r);
4238 static int switch_root(sd_bus *bus, char **args) {
4239 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4240 _cleanup_free_ char *init = NULL;
4245 l = strv_length(args);
4246 if (l < 2 || l > 3) {
4247 log_error("Wrong number of arguments.");
4254 init = strdup(args[2]);
4256 parse_env_file("/proc/cmdline", WHITESPACE,
4267 log_debug("switching root - root: %s; init: %s", root, init);
4269 r = sd_bus_call_method(
4271 "org.freedesktop.systemd1",
4272 "/org/freedesktop/systemd1",
4273 "org.freedesktop.systemd1.Manager",
4279 log_error("Failed to switch root: %s", bus_error_message(&error, r));
4286 static int set_environment(sd_bus *bus, char **args) {
4287 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4288 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
4295 method = streq(args[0], "set-environment")
4297 : "UnsetEnvironment";
4299 r = sd_bus_message_new_method_call(
4301 "org.freedesktop.systemd1",
4302 "/org/freedesktop/systemd1",
4303 "org.freedesktop.systemd1.Manager",
4307 return bus_log_create_error(r);
4309 r = sd_bus_message_append_strv(m, args + 1);
4311 return bus_log_create_error(r);
4313 r = sd_bus_call(bus, m, 0, &error, NULL);
4315 log_error("Failed to set environment: %s", bus_error_message(&error, r));
4322 static int enable_sysv_units(const char *verb, char **args) {
4325 #if defined(HAVE_SYSV_COMPAT) && defined(HAVE_CHKCONFIG)
4326 unsigned f = 1, t = 1;
4327 _cleanup_lookup_paths_free_ LookupPaths paths = {};
4329 if (arg_scope != UNIT_FILE_SYSTEM)
4332 if (!streq(verb, "enable") &&
4333 !streq(verb, "disable") &&
4334 !streq(verb, "is-enabled"))
4337 /* Processes all SysV units, and reshuffles the array so that
4338 * afterwards only the native units remain */
4340 r = lookup_paths_init(&paths, SYSTEMD_SYSTEM, false, NULL, NULL, NULL);
4345 for (f = 0; args[f]; f++) {
4347 _cleanup_free_ char *p = NULL, *q = NULL;
4348 bool found_native = false, found_sysv;
4350 const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL };
4358 if (!endswith(name, ".service"))
4361 if (path_is_absolute(name))
4364 STRV_FOREACH(k, paths.unit_path) {
4365 if (!isempty(arg_root))
4366 asprintf(&p, "%s/%s/%s", arg_root, *k, name);
4368 asprintf(&p, "%s/%s", *k, name);
4375 found_native = access(p, F_OK) >= 0;
4386 if (!isempty(arg_root))
4387 asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name);
4389 asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name);
4395 p[strlen(p) - sizeof(".service") + 1] = 0;
4396 found_sysv = access(p, F_OK) >= 0;
4401 /* Mark this entry, so that we don't try enabling it as native unit */
4402 args[f] = (char*) "";
4404 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name);
4406 if (!isempty(arg_root))
4407 argv[c++] = q = strappend("--root=", arg_root);
4409 argv[c++] = path_get_file_name(p);
4411 streq(verb, "enable") ? "on" :
4412 streq(verb, "disable") ? "off" : "--level=5";
4415 l = strv_join((char**)argv, " ");
4421 log_info("Executing %s", l);
4426 log_error("Failed to fork: %m");
4429 } else if (pid == 0) {
4432 execv(argv[0], (char**) argv);
4433 _exit(EXIT_FAILURE);
4436 j = wait_for_terminate(pid, &status);
4438 log_error("Failed to wait for child: %s", strerror(-r));
4443 if (status.si_code == CLD_EXITED) {
4444 if (streq(verb, "is-enabled")) {
4445 if (status.si_status == 0) {
4454 } else if (status.si_status != 0) {
4465 /* Drop all SysV units */
4466 for (f = 0, t = 0; args[f]; f++) {
4468 if (isempty(args[f]))
4471 args[t++] = args[f];
4480 static int mangle_names(char **original_names, char ***mangled_names) {
4481 char **i, **l, **name;
4483 l = new(char*, strv_length(original_names) + 1);
4488 STRV_FOREACH(name, original_names) {
4490 /* When enabling units qualified path names are OK,
4491 * too, hence allow them explicitly. */
4496 *i = unit_name_mangle(*name);
4512 static int enable_unit(sd_bus *bus, char **args) {
4513 _cleanup_strv_free_ char **mangled_names = NULL;
4514 const char *verb = args[0];
4515 UnitFileChange *changes = NULL;
4516 unsigned n_changes = 0;
4517 int carries_install_info = -1;
4523 r = mangle_names(args+1, &mangled_names);
4527 r = enable_sysv_units(verb, mangled_names);
4531 if (!bus || avoid_bus()) {
4532 if (streq(verb, "enable")) {
4533 r = unit_file_enable(arg_scope, arg_runtime, arg_root, mangled_names, arg_force, &changes, &n_changes);
4534 carries_install_info = r;
4535 } else if (streq(verb, "disable"))
4536 r = unit_file_disable(arg_scope, arg_runtime, arg_root, mangled_names, &changes, &n_changes);
4537 else if (streq(verb, "reenable")) {
4538 r = unit_file_reenable(arg_scope, arg_runtime, arg_root, mangled_names, arg_force, &changes, &n_changes);
4539 carries_install_info = r;
4540 } else if (streq(verb, "link"))
4541 r = unit_file_link(arg_scope, arg_runtime, arg_root, mangled_names, arg_force, &changes, &n_changes);
4542 else if (streq(verb, "preset")) {
4543 r = unit_file_preset(arg_scope, arg_runtime, arg_root, mangled_names, arg_force, &changes, &n_changes);
4544 carries_install_info = r;
4545 } else if (streq(verb, "mask"))
4546 r = unit_file_mask(arg_scope, arg_runtime, arg_root, mangled_names, arg_force, &changes, &n_changes);
4547 else if (streq(verb, "unmask"))
4548 r = unit_file_unmask(arg_scope, arg_runtime, arg_root, mangled_names, &changes, &n_changes);
4550 assert_not_reached("Unknown verb");
4553 log_error("Operation failed: %s", strerror(-r));
4558 dump_unit_file_changes(changes, n_changes);
4562 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL, *m = NULL;
4563 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4564 int expect_carries_install_info = false;
4565 bool send_force = true;
4568 if (streq(verb, "enable")) {
4569 method = "EnableUnitFiles";
4570 expect_carries_install_info = true;
4571 } else if (streq(verb, "disable")) {
4572 method = "DisableUnitFiles";
4574 } else if (streq(verb, "reenable")) {
4575 method = "ReenableUnitFiles";
4576 expect_carries_install_info = true;
4577 } else if (streq(verb, "link"))
4578 method = "LinkUnitFiles";
4579 else if (streq(verb, "preset")) {
4580 method = "PresetUnitFiles";
4581 expect_carries_install_info = true;
4582 } else if (streq(verb, "mask"))
4583 method = "MaskUnitFiles";
4584 else if (streq(verb, "unmask")) {
4585 method = "UnmaskUnitFiles";
4588 assert_not_reached("Unknown verb");
4590 r = sd_bus_message_new_method_call(
4592 "org.freedesktop.systemd1",
4593 "/org/freedesktop/systemd1",
4594 "org.freedesktop.systemd1.Manager",
4598 return bus_log_create_error(r);
4600 r = sd_bus_message_append_strv(m, mangled_names);
4602 return bus_log_create_error(r);
4604 r = sd_bus_message_append(m, "b", arg_runtime);
4606 return bus_log_create_error(r);
4609 r = sd_bus_message_append(m, "b", arg_force);
4611 return bus_log_create_error(r);
4614 r = sd_bus_call(bus, m, 0, &error, &reply);
4616 log_error("Failed to execute operation: %s", bus_error_message(&error, r));
4620 if (expect_carries_install_info) {
4621 r = sd_bus_message_read(reply, "b", &carries_install_info);
4623 return bus_log_parse_error(r);
4626 r = deserialize_and_dump_unit_file_changes(reply);
4630 /* Try to reload if enabeld */
4632 r = daemon_reload(bus, args);
4637 if (carries_install_info == 0)
4638 log_warning("The unit files have no [Install] section. They are not meant to be enabled\n"
4639 "using systemctl.\n"
4640 "Possible reasons for having this kind of units are:\n"
4641 "1) A unit may be statically enabled by being symlinked from another unit's\n"
4642 " .wants/ or .requires/ directory.\n"
4643 "2) A unit's purpose may be to act as a helper for some other unit which has\n"
4644 " a requirement dependency on it.\n"
4645 "3) A unit may be started when needed via activation (socket, path, timer,\n"
4646 " D-Bus, udev, scripted systemctl call, ...).\n");
4649 unit_file_changes_free(changes, n_changes);
4654 static int unit_is_enabled(sd_bus *bus, char **args) {
4656 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
4657 _cleanup_strv_free_ char **mangled_names = NULL;
4662 r = mangle_names(args+1, &mangled_names);
4666 r = enable_sysv_units(args[0], mangled_names);
4672 if (!bus || avoid_bus()) {
4674 STRV_FOREACH(name, mangled_names) {
4675 UnitFileState state;
4677 state = unit_file_get_state(arg_scope, arg_root, *name);
4679 log_error("Failed to get unit file state for %s: %s", *name, strerror(-state));
4683 if (state == UNIT_FILE_ENABLED ||
4684 state == UNIT_FILE_ENABLED_RUNTIME ||
4685 state == UNIT_FILE_STATIC)
4689 puts(unit_file_state_to_string(state));
4693 STRV_FOREACH(name, mangled_names) {
4694 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
4697 r = sd_bus_call_method(
4699 "org.freedesktop.systemd1",
4700 "/org/freedesktop/systemd1",
4701 "org.freedesktop.systemd1.Manager",
4707 log_error("Failed to get unit file state for %s: %s", *name, bus_error_message(&error, r));
4711 r = sd_bus_message_read(reply, "s", &s);
4713 return bus_log_parse_error(r);
4715 if (streq(s, "enabled") ||
4716 streq(s, "enabled-runtime") ||
4728 static int systemctl_help(void) {
4730 pager_open_if_enabled();
4732 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
4733 "Query or send control commands to the systemd manager.\n\n"
4734 " -h --help Show this help\n"
4735 " --version Show package version\n"
4736 " --system Connect to system manager\n"
4737 " --user Connect to user service manager\n"
4738 " -H --host=[USER@]HOST\n"
4739 " Operate on remote host\n"
4740 " -M --machine=CONTAINER\n"
4741 " Operate on local container\n"
4742 " -t --type=TYPE List only units of a particular type\n"
4743 " --state=STATE List only units with particular LOAD or SUB or ACTIVE state\n"
4744 " -p --property=NAME Show only properties by this name\n"
4745 " -a --all Show all loaded units/properties, including dead/empty\n"
4746 " ones. To list all units installed on the system, use\n"
4747 " the 'list-unit-files' command instead.\n"
4748 " -l --full Don't ellipsize unit names on output\n"
4749 " --reverse Show reverse dependencies with 'list-dependencies'\n"
4750 " --job-mode=MODE Specify how to deal with already queued jobs, when\n"
4751 " queueing a new job\n"
4752 " --show-types When showing sockets, explicitly show their type\n"
4753 " -i --ignore-inhibitors\n"
4754 " When shutting down or sleeping, ignore inhibitors\n"
4755 " --kill-who=WHO Who to send signal to\n"
4756 " -s --signal=SIGNAL Which signal to send\n"
4757 " -q --quiet Suppress output\n"
4758 " --no-block Do not wait until operation finished\n"
4759 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4760 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
4762 " --no-legend Do not print a legend (column headers and hints)\n"
4763 " --no-pager Do not pipe output into a pager\n"
4764 " --no-ask-password\n"
4765 " Do not ask for system passwords\n"
4766 " --global Enable/disable unit files globally\n"
4767 " --runtime Enable unit files only temporarily until next reboot\n"
4768 " -f --force When enabling unit files, override existing symlinks\n"
4769 " When shutting down, execute action immediately\n"
4770 " --root=PATH Enable unit files in the specified root directory\n"
4771 " -n --lines=INTEGER Number of journal entries to show\n"
4772 " -o --output=STRING Change journal output mode (short, short-monotonic,\n"
4773 " verbose, export, json, json-pretty, json-sse, cat)\n\n"
4775 " list-units List loaded units\n"
4776 " list-sockets List loaded sockets ordered by address\n"
4777 " list-timers List loaded timers ordered by next elapse\n"
4778 " start [NAME...] Start (activate) one or more units\n"
4779 " stop [NAME...] Stop (deactivate) one or more units\n"
4780 " reload [NAME...] Reload one or more units\n"
4781 " restart [NAME...] Start or restart one or more units\n"
4782 " try-restart [NAME...] Restart one or more units if active\n"
4783 " reload-or-restart [NAME...] Reload one or more units if possible,\n"
4784 " otherwise start or restart\n"
4785 " reload-or-try-restart [NAME...] Reload one or more units if possible,\n"
4786 " otherwise restart if active\n"
4787 " isolate [NAME] Start one unit and stop all others\n"
4788 " kill [NAME...] Send signal to processes of a unit\n"
4789 " is-active [NAME...] Check whether units are active\n"
4790 " is-failed [NAME...] Check whether units are failed\n"
4791 " status [NAME...|PID...] Show runtime status of one or more units\n"
4792 " show [NAME...|JOB...] Show properties of one or more\n"
4793 " units/jobs or the manager\n"
4794 " cat [NAME...] Show files and drop-ins of one or more units\n"
4795 " set-property [NAME] [ASSIGNMENT...]\n"
4796 " Sets one or more properties of a unit\n"
4797 " help [NAME...|PID...] Show manual for one or more units\n"
4798 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4800 " list-dependencies [NAME] Recursively show units which are required\n"
4801 " or wanted by this unit or by which this\n"
4802 " unit is required or wanted\n\n"
4803 "Unit File Commands:\n"
4804 " list-unit-files List installed unit files\n"
4805 " enable [NAME...] Enable one or more unit files\n"
4806 " disable [NAME...] Disable one or more unit files\n"
4807 " reenable [NAME...] Reenable one or more unit files\n"
4808 " preset [NAME...] Enable/disable one or more unit files\n"
4809 " based on preset configuration\n"
4810 " is-enabled [NAME...] Check whether unit files are enabled\n\n"
4811 " mask [NAME...] Mask one or more units\n"
4812 " unmask [NAME...] Unmask one or more units\n"
4813 " link [PATH...] Link one or more units files into\n"
4814 " the search path\n"
4815 " get-default Get the name of the default target\n"
4816 " set-default NAME Set the default target\n\n"
4818 " list-jobs List jobs\n"
4819 " cancel [JOB...] Cancel all, one, or more jobs\n\n"
4820 "Snapshot Commands:\n"
4821 " snapshot [NAME] Create a snapshot\n"
4822 " delete [NAME...] Remove one or more snapshots\n\n"
4823 "Environment Commands:\n"
4824 " show-environment Dump environment\n"
4825 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
4826 " unset-environment [NAME...] Unset one or more environment variables\n\n"
4827 "Manager Lifecycle Commands:\n"
4828 " daemon-reload Reload systemd manager configuration\n"
4829 " daemon-reexec Reexecute systemd manager\n\n"
4830 "System Commands:\n"
4831 " default Enter system default mode\n"
4832 " rescue Enter system rescue mode\n"
4833 " emergency Enter system emergency mode\n"
4834 " halt Shut down and halt the system\n"
4835 " poweroff Shut down and power-off the system\n"
4836 " reboot [ARG] Shut down and reboot the system\n"
4837 " kexec Shut down and reboot the system with kexec\n"
4838 " exit Request user instance exit\n"
4839 " switch-root [ROOT] [INIT] Change to a different root file system\n"
4840 " suspend Suspend the system\n"
4841 " hibernate Hibernate the system\n"
4842 " hybrid-sleep Hibernate and suspend the system\n",
4843 program_invocation_short_name);
4848 static int halt_help(void) {
4850 printf("%s [OPTIONS...]%s\n\n"
4851 "%s the system.\n\n"
4852 " --help Show this help\n"
4853 " --halt Halt the machine\n"
4854 " -p --poweroff Switch off the machine\n"
4855 " --reboot Reboot the machine\n"
4856 " -f --force Force immediate halt/power-off/reboot\n"
4857 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
4858 " -d --no-wtmp Don't write wtmp record\n"
4859 " --no-wall Don't send wall message before halt/power-off/reboot\n",
4860 program_invocation_short_name,
4861 arg_action == ACTION_REBOOT ? " [ARG]" : "",
4862 arg_action == ACTION_REBOOT ? "Reboot" :
4863 arg_action == ACTION_POWEROFF ? "Power off" :
4869 static int shutdown_help(void) {
4871 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
4872 "Shut down the system.\n\n"
4873 " --help Show this help\n"
4874 " -H --halt Halt the machine\n"
4875 " -P --poweroff Power-off the machine\n"
4876 " -r --reboot Reboot the machine\n"
4877 " -h Equivalent to --poweroff, overridden by --halt\n"
4878 " -k Don't halt/power-off/reboot, just send warnings\n"
4879 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4880 " -c Cancel a pending shutdown\n",
4881 program_invocation_short_name);
4886 static int telinit_help(void) {
4888 printf("%s [OPTIONS...] {COMMAND}\n\n"
4889 "Send control commands to the init daemon.\n\n"
4890 " --help Show this help\n"
4891 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
4893 " 0 Power-off the machine\n"
4894 " 6 Reboot the machine\n"
4895 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4896 " 1, s, S Enter rescue mode\n"
4897 " q, Q Reload init daemon configuration\n"
4898 " u, U Reexecute init daemon\n",
4899 program_invocation_short_name);
4904 static int runlevel_help(void) {
4906 printf("%s [OPTIONS...]\n\n"
4907 "Prints the previous and current runlevel of the init system.\n\n"
4908 " --help Show this help\n",
4909 program_invocation_short_name);
4914 static int help_types(void) {
4918 puts("Available unit types:");
4919 for (i = 0; i < _UNIT_TYPE_MAX; i++) {
4920 t = unit_type_to_string(i);
4928 static int systemctl_parse_argv(int argc, char *argv[]) {
4937 ARG_IGNORE_DEPENDENCIES,
4949 ARG_NO_ASK_PASSWORD,
4958 static const struct option options[] = {
4959 { "help", no_argument, NULL, 'h' },
4960 { "version", no_argument, NULL, ARG_VERSION },
4961 { "type", required_argument, NULL, 't' },
4962 { "property", required_argument, NULL, 'p' },
4963 { "all", no_argument, NULL, 'a' },
4964 { "reverse", no_argument, NULL, ARG_REVERSE },
4965 { "after", no_argument, NULL, ARG_AFTER },
4966 { "before", no_argument, NULL, ARG_BEFORE },
4967 { "show-types", no_argument, NULL, ARG_SHOW_TYPES },
4968 { "failed", no_argument, NULL, ARG_FAILED }, /* compatibility only */
4969 { "full", no_argument, NULL, 'l' },
4970 { "job-mode", required_argument, NULL, ARG_JOB_MODE },
4971 { "fail", no_argument, NULL, ARG_FAIL }, /* compatibility only */
4972 { "irreversible", no_argument, NULL, ARG_IRREVERSIBLE }, /* compatibility only */
4973 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES }, /* compatibility only */
4974 { "ignore-inhibitors", no_argument, NULL, 'i' },
4975 { "user", no_argument, NULL, ARG_USER },
4976 { "system", no_argument, NULL, ARG_SYSTEM },
4977 { "global", no_argument, NULL, ARG_GLOBAL },
4978 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4979 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
4980 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
4981 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4982 { "quiet", no_argument, NULL, 'q' },
4983 { "root", required_argument, NULL, ARG_ROOT },
4984 { "force", no_argument, NULL, ARG_FORCE },
4985 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
4986 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4987 { "signal", required_argument, NULL, 's' },
4988 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
4989 { "host", required_argument, NULL, 'H' },
4990 { "machine", required_argument, NULL, 'M' },
4991 { "runtime", no_argument, NULL, ARG_RUNTIME },
4992 { "lines", required_argument, NULL, 'n' },
4993 { "output", required_argument, NULL, 'o' },
4994 { "plain", no_argument, NULL, ARG_PLAIN },
4995 { "state", required_argument, NULL, ARG_STATE },
5004 while ((c = getopt_long(argc, argv, "ht:p:alqfs:H:M:n:o:i", options, NULL)) >= 0) {
5009 return systemctl_help();
5012 puts(PACKAGE_STRING);
5013 puts(SYSTEMD_FEATURES);
5020 FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
5021 _cleanup_free_ char *type;
5023 type = strndup(word, size);
5027 if (streq(type, "help")) {
5032 if (unit_type_from_string(type) >= 0) {
5033 if (strv_push(&arg_types, type))
5039 /* It's much nicer to use --state= for
5040 * load states, but let's support this
5041 * in --types= too for compatibility
5042 * with old versions */
5043 if (unit_load_state_from_string(optarg) >= 0) {
5044 if (strv_push(&arg_states, type) < 0)
5050 log_error("Unknown unit type or load state '%s'.", type);
5051 log_info("Use -t help to see a list of allowed values.");
5059 /* Make sure that if the empty property list
5060 was specified, we won't show any properties. */
5061 if (isempty(optarg) && !arg_properties) {
5062 arg_properties = new0(char*, 1);
5063 if (!arg_properties)
5069 FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
5072 prop = strndup(word, size);
5076 if (strv_push(&arg_properties, prop) < 0) {
5083 /* If the user asked for a particular
5084 * property, show it to him, even if it is
5096 arg_dependency = DEPENDENCY_REVERSE;
5100 arg_dependency = DEPENDENCY_AFTER;
5104 arg_dependency = DEPENDENCY_BEFORE;
5107 case ARG_SHOW_TYPES:
5108 arg_show_types = true;
5112 arg_job_mode = optarg;
5116 arg_job_mode = "fail";
5119 case ARG_IRREVERSIBLE:
5120 arg_job_mode = "replace-irreversibly";
5123 case ARG_IGNORE_DEPENDENCIES:
5124 arg_job_mode = "ignore-dependencies";
5128 arg_scope = UNIT_FILE_USER;
5132 arg_scope = UNIT_FILE_SYSTEM;
5136 arg_scope = UNIT_FILE_GLOBAL;
5140 arg_no_block = true;
5144 arg_no_legend = true;
5148 arg_no_pager = true;
5164 if (strv_extend(&arg_states, "failed") < 0)
5182 arg_no_reload = true;
5186 arg_kill_who = optarg;
5190 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
5191 log_error("Failed to parse signal string %s.", optarg);
5196 case ARG_NO_ASK_PASSWORD:
5197 arg_ask_password = false;
5201 arg_transport = BUS_TRANSPORT_REMOTE;
5206 arg_transport = BUS_TRANSPORT_CONTAINER;
5215 if (safe_atou(optarg, &arg_lines) < 0) {
5216 log_error("Failed to parse lines '%s'", optarg);
5222 arg_output = output_mode_from_string(optarg);
5223 if (arg_output < 0) {
5224 log_error("Unknown output '%s'.", optarg);
5230 arg_ignore_inhibitors = true;
5241 FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
5244 s = strndup(word, size);
5248 if (strv_push(&arg_states, s) < 0) {
5260 assert_not_reached("Unhandled option");
5264 if (arg_transport != BUS_TRANSPORT_LOCAL && arg_scope != UNIT_FILE_SYSTEM) {
5265 log_error("Cannot access user instance remotely.");
5272 static int halt_parse_argv(int argc, char *argv[]) {
5281 static const struct option options[] = {
5282 { "help", no_argument, NULL, ARG_HELP },
5283 { "halt", no_argument, NULL, ARG_HALT },
5284 { "poweroff", no_argument, NULL, 'p' },
5285 { "reboot", no_argument, NULL, ARG_REBOOT },
5286 { "force", no_argument, NULL, 'f' },
5287 { "wtmp-only", no_argument, NULL, 'w' },
5288 { "no-wtmp", no_argument, NULL, 'd' },
5289 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5298 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
5299 if (runlevel == '0' || runlevel == '6')
5302 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
5309 arg_action = ACTION_HALT;
5313 if (arg_action != ACTION_REBOOT)
5314 arg_action = ACTION_POWEROFF;
5318 arg_action = ACTION_REBOOT;
5340 /* Compatibility nops */
5347 assert_not_reached("Unhandled option");
5351 if (arg_action == ACTION_REBOOT && argc == optind + 1) {
5352 r = write_string_file(REBOOT_PARAM_FILE, argv[optind]);
5354 log_error("Failed to write reboot param to "
5355 REBOOT_PARAM_FILE": %s", strerror(-r));
5358 } else if (optind < argc) {
5359 log_error("Too many arguments.");
5366 static int parse_time_spec(const char *t, usec_t *_u) {
5370 if (streq(t, "now"))
5372 else if (!strchr(t, ':')) {
5375 if (safe_atou64(t, &u) < 0)
5378 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
5387 hour = strtol(t, &e, 10);
5388 if (errno > 0 || *e != ':' || hour < 0 || hour > 23)
5391 minute = strtol(e+1, &e, 10);
5392 if (errno > 0 || *e != 0 || minute < 0 || minute > 59)
5395 n = now(CLOCK_REALTIME);
5396 s = (time_t) (n / USEC_PER_SEC);
5398 assert_se(localtime_r(&s, &tm));
5400 tm.tm_hour = (int) hour;
5401 tm.tm_min = (int) minute;
5404 assert_se(s = mktime(&tm));
5406 *_u = (usec_t) s * USEC_PER_SEC;
5409 *_u += USEC_PER_DAY;
5415 static int shutdown_parse_argv(int argc, char *argv[]) {
5422 static const struct option options[] = {
5423 { "help", no_argument, NULL, ARG_HELP },
5424 { "halt", no_argument, NULL, 'H' },
5425 { "poweroff", no_argument, NULL, 'P' },
5426 { "reboot", no_argument, NULL, 'r' },
5427 { "kexec", no_argument, NULL, 'K' }, /* not documented extension */
5428 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5437 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
5441 return shutdown_help();
5444 arg_action = ACTION_HALT;
5448 arg_action = ACTION_POWEROFF;
5453 arg_action = ACTION_KEXEC;
5455 arg_action = ACTION_REBOOT;
5459 arg_action = ACTION_KEXEC;
5463 if (arg_action != ACTION_HALT)
5464 arg_action = ACTION_POWEROFF;
5477 /* Compatibility nops */
5481 arg_action = ACTION_CANCEL_SHUTDOWN;
5488 assert_not_reached("Unhandled option");
5492 if (argc > optind && arg_action != ACTION_CANCEL_SHUTDOWN) {
5493 r = parse_time_spec(argv[optind], &arg_when);
5495 log_error("Failed to parse time specification: %s", argv[optind]);
5499 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
5501 if (argc > optind && arg_action == ACTION_CANCEL_SHUTDOWN)
5502 /* No time argument for shutdown cancel */
5503 arg_wall = argv + optind;
5504 else if (argc > optind + 1)
5505 /* We skip the time argument */
5506 arg_wall = argv + optind + 1;
5513 static int telinit_parse_argv(int argc, char *argv[]) {
5520 static const struct option options[] = {
5521 { "help", no_argument, NULL, ARG_HELP },
5522 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5526 static const struct {
5530 { '0', ACTION_POWEROFF },
5531 { '6', ACTION_REBOOT },
5532 { '1', ACTION_RESCUE },
5533 { '2', ACTION_RUNLEVEL2 },
5534 { '3', ACTION_RUNLEVEL3 },
5535 { '4', ACTION_RUNLEVEL4 },
5536 { '5', ACTION_RUNLEVEL5 },
5537 { 's', ACTION_RESCUE },
5538 { 'S', ACTION_RESCUE },
5539 { 'q', ACTION_RELOAD },
5540 { 'Q', ACTION_RELOAD },
5541 { 'u', ACTION_REEXEC },
5542 { 'U', ACTION_REEXEC }
5551 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5555 return telinit_help();
5565 assert_not_reached("Unhandled option");
5569 if (optind >= argc) {
5574 if (optind + 1 < argc) {
5575 log_error("Too many arguments.");
5579 if (strlen(argv[optind]) != 1) {
5580 log_error("Expected single character argument.");
5584 for (i = 0; i < ELEMENTSOF(table); i++)
5585 if (table[i].from == argv[optind][0])
5588 if (i >= ELEMENTSOF(table)) {
5589 log_error("Unknown command '%s'.", argv[optind]);
5593 arg_action = table[i].to;
5600 static int runlevel_parse_argv(int argc, char *argv[]) {
5606 static const struct option options[] = {
5607 { "help", no_argument, NULL, ARG_HELP },
5616 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5620 return runlevel_help();
5627 assert_not_reached("Unhandled option");
5631 if (optind < argc) {
5632 log_error("Too many arguments.");
5639 static int parse_argv(int argc, char *argv[]) {
5643 if (program_invocation_short_name) {
5645 if (strstr(program_invocation_short_name, "halt")) {
5646 arg_action = ACTION_HALT;
5647 return halt_parse_argv(argc, argv);
5648 } else if (strstr(program_invocation_short_name, "poweroff")) {
5649 arg_action = ACTION_POWEROFF;
5650 return halt_parse_argv(argc, argv);
5651 } else if (strstr(program_invocation_short_name, "reboot")) {
5653 arg_action = ACTION_KEXEC;
5655 arg_action = ACTION_REBOOT;
5656 return halt_parse_argv(argc, argv);
5657 } else if (strstr(program_invocation_short_name, "shutdown")) {
5658 arg_action = ACTION_POWEROFF;
5659 return shutdown_parse_argv(argc, argv);
5660 } else if (strstr(program_invocation_short_name, "init")) {
5662 if (sd_booted() > 0) {
5663 arg_action = _ACTION_INVALID;
5664 return telinit_parse_argv(argc, argv);
5666 /* Hmm, so some other init system is
5667 * running, we need to forward this
5668 * request to it. For now we simply
5669 * guess that it is Upstart. */
5671 execv(TELINIT, argv);
5673 log_error("Couldn't find an alternative telinit implementation to spawn.");
5677 } else if (strstr(program_invocation_short_name, "runlevel")) {
5678 arg_action = ACTION_RUNLEVEL;
5679 return runlevel_parse_argv(argc, argv);
5683 arg_action = ACTION_SYSTEMCTL;
5684 return systemctl_parse_argv(argc, argv);
5687 _pure_ static int action_to_runlevel(void) {
5689 static const char table[_ACTION_MAX] = {
5690 [ACTION_HALT] = '0',
5691 [ACTION_POWEROFF] = '0',
5692 [ACTION_REBOOT] = '6',
5693 [ACTION_RUNLEVEL2] = '2',
5694 [ACTION_RUNLEVEL3] = '3',
5695 [ACTION_RUNLEVEL4] = '4',
5696 [ACTION_RUNLEVEL5] = '5',
5697 [ACTION_RESCUE] = '1'
5700 assert(arg_action < _ACTION_MAX);
5702 return table[arg_action];
5705 static int talk_initctl(void) {
5707 struct init_request request = {
5708 .magic = INIT_MAGIC,
5710 .cmd = INIT_CMD_RUNLVL
5713 _cleanup_close_ int fd = -1;
5717 rl = action_to_runlevel();
5721 request.runlevel = rl;
5723 fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY);
5725 if (errno == ENOENT)
5728 log_error("Failed to open "INIT_FIFO": %m");
5733 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
5735 log_error("Failed to write to "INIT_FIFO": %m");
5736 return errno > 0 ? -errno : -EIO;
5742 static int systemctl_main(sd_bus *bus, int argc, char *argv[], int bus_error) {
5744 static const struct {
5752 int (* const dispatch)(sd_bus *bus, char **args);
5754 { "list-units", LESS, 1, list_units },
5755 { "list-unit-files", EQUAL, 1, list_unit_files },
5756 { "list-sockets", LESS, 1, list_sockets },
5757 { "list-timers", LESS, 1, list_timers },
5758 { "list-jobs", EQUAL, 1, list_jobs },
5759 { "clear-jobs", EQUAL, 1, daemon_reload },
5760 { "cancel", MORE, 2, cancel_job },
5761 { "start", MORE, 2, start_unit },
5762 { "stop", MORE, 2, start_unit },
5763 { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5764 { "reload", MORE, 2, start_unit },
5765 { "restart", MORE, 2, start_unit },
5766 { "try-restart", MORE, 2, start_unit },
5767 { "reload-or-restart", MORE, 2, start_unit },
5768 { "reload-or-try-restart", MORE, 2, start_unit },
5769 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
5770 { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5771 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
5772 { "isolate", EQUAL, 2, start_unit },
5773 { "kill", MORE, 2, kill_unit },
5774 { "is-active", MORE, 2, check_unit_active },
5775 { "check", MORE, 2, check_unit_active },
5776 { "is-failed", MORE, 2, check_unit_failed },
5777 { "show", MORE, 1, show },
5778 { "cat", MORE, 2, cat },
5779 { "status", MORE, 1, show },
5780 { "help", MORE, 2, show },
5781 { "snapshot", LESS, 2, snapshot },
5782 { "delete", MORE, 2, delete_snapshot },
5783 { "daemon-reload", EQUAL, 1, daemon_reload },
5784 { "daemon-reexec", EQUAL, 1, daemon_reload },
5785 { "show-environment", EQUAL, 1, show_environment },
5786 { "set-environment", MORE, 2, set_environment },
5787 { "unset-environment", MORE, 2, set_environment },
5788 { "halt", EQUAL, 1, start_special },
5789 { "poweroff", EQUAL, 1, start_special },
5790 { "reboot", EQUAL, 1, start_special },
5791 { "kexec", EQUAL, 1, start_special },
5792 { "suspend", EQUAL, 1, start_special },
5793 { "hibernate", EQUAL, 1, start_special },
5794 { "hybrid-sleep", EQUAL, 1, start_special },
5795 { "default", EQUAL, 1, start_special },
5796 { "rescue", EQUAL, 1, start_special },
5797 { "emergency", EQUAL, 1, start_special },
5798 { "exit", EQUAL, 1, start_special },
5799 { "reset-failed", MORE, 1, reset_failed },
5800 { "enable", MORE, 2, enable_unit },
5801 { "disable", MORE, 2, enable_unit },
5802 { "is-enabled", MORE, 2, unit_is_enabled },
5803 { "reenable", MORE, 2, enable_unit },
5804 { "preset", MORE, 2, enable_unit },
5805 { "mask", MORE, 2, enable_unit },
5806 { "unmask", MORE, 2, enable_unit },
5807 { "link", MORE, 2, enable_unit },
5808 { "switch-root", MORE, 2, switch_root },
5809 { "list-dependencies", LESS, 2, list_dependencies },
5810 { "set-default", EQUAL, 2, set_default },
5811 { "get-default", EQUAL, 1, get_default },
5812 { "set-property", MORE, 3, set_property },
5821 left = argc - optind;
5824 /* Special rule: no arguments means "list-units" */
5827 if (streq(argv[optind], "help") && !argv[optind+1]) {
5828 log_error("This command expects one or more "
5829 "unit names. Did you mean --help?");
5833 for (i = 0; i < ELEMENTSOF(verbs); i++)
5834 if (streq(argv[optind], verbs[i].verb))
5837 if (i >= ELEMENTSOF(verbs)) {
5838 log_error("Unknown operation '%s'.", argv[optind]);
5843 switch (verbs[i].argc_cmp) {
5846 if (left != verbs[i].argc) {
5847 log_error("Invalid number of arguments.");
5854 if (left < verbs[i].argc) {
5855 log_error("Too few arguments.");
5862 if (left > verbs[i].argc) {
5863 log_error("Too many arguments.");
5870 assert_not_reached("Unknown comparison operator.");
5873 /* Require a bus connection for all operations but
5875 if (!streq(verbs[i].verb, "enable") &&
5876 !streq(verbs[i].verb, "disable") &&
5877 !streq(verbs[i].verb, "is-enabled") &&
5878 !streq(verbs[i].verb, "list-unit-files") &&
5879 !streq(verbs[i].verb, "reenable") &&
5880 !streq(verbs[i].verb, "preset") &&
5881 !streq(verbs[i].verb, "mask") &&
5882 !streq(verbs[i].verb, "unmask") &&
5883 !streq(verbs[i].verb, "link") &&
5884 !streq(verbs[i].verb, "set-default") &&
5885 !streq(verbs[i].verb, "get-default")) {
5887 if (running_in_chroot() > 0) {
5888 log_info("Running in chroot, ignoring request.");
5892 if (((!streq(verbs[i].verb, "reboot") &&
5893 !streq(verbs[i].verb, "halt") &&
5894 !streq(verbs[i].verb, "poweroff")) || arg_force <= 0) && !bus) {
5895 log_error("Failed to get D-Bus connection: %s", strerror (-bus_error));
5901 if (!bus && !avoid_bus()) {
5902 log_error("Failed to get D-Bus connection: %s", strerror (-bus_error));
5907 return verbs[i].dispatch(bus, argv + optind);
5910 static int send_shutdownd(usec_t t, char mode, bool dry_run, bool warn, const char *message) {
5912 struct sd_shutdown_command c = {
5919 union sockaddr_union sockaddr = {
5920 .un.sun_family = AF_UNIX,
5921 .un.sun_path = "/run/systemd/shutdownd",
5924 struct iovec iovec[2] = {{
5925 .iov_base = (char*) &c,
5926 .iov_len = offsetof(struct sd_shutdown_command, wall_message),
5929 struct msghdr msghdr = {
5930 .msg_name = &sockaddr,
5931 .msg_namelen = offsetof(struct sockaddr_un, sun_path)
5932 + sizeof("/run/systemd/shutdownd") - 1,
5937 _cleanup_close_ int fd;
5939 fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
5943 if (!isempty(message)) {
5944 iovec[1].iov_base = (char*) message;
5945 iovec[1].iov_len = strlen(message);
5946 msghdr.msg_iovlen++;
5949 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0)
5955 static int reload_with_fallback(sd_bus *bus) {
5958 /* First, try systemd via D-Bus. */
5959 if (daemon_reload(bus, NULL) >= 0)
5963 /* Nothing else worked, so let's try signals */
5964 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5966 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5967 log_error("kill() failed: %m");
5974 static int start_with_fallback(sd_bus *bus) {
5977 /* First, try systemd via D-Bus. */
5978 if (start_unit(bus, NULL) >= 0)
5982 /* Nothing else worked, so let's try
5984 if (talk_initctl() > 0)
5987 log_error("Failed to talk to init daemon.");
5991 warn_wall(arg_action);
5995 static int halt_now(enum action a) {
5997 /* Make sure C-A-D is handled by the kernel from this
5999 reboot(RB_ENABLE_CAD);
6004 log_info("Halting.");
6005 reboot(RB_HALT_SYSTEM);
6008 case ACTION_POWEROFF:
6009 log_info("Powering off.");
6010 reboot(RB_POWER_OFF);
6013 case ACTION_REBOOT: {
6014 _cleanup_free_ char *param = NULL;
6016 if (read_one_line_file(REBOOT_PARAM_FILE, ¶m) >= 0) {
6017 log_info("Rebooting with argument '%s'.", param);
6018 syscall(SYS_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2,
6019 LINUX_REBOOT_CMD_RESTART2, param);
6022 log_info("Rebooting.");
6023 reboot(RB_AUTOBOOT);
6028 assert_not_reached("Unknown action.");
6032 static int halt_main(sd_bus *bus) {
6035 r = check_inhibitors(bus, arg_action);
6039 if (geteuid() != 0) {
6040 /* Try logind if we are a normal user and no special
6041 * mode applies. Maybe PolicyKit allows us to shutdown
6044 if (arg_when <= 0 &&
6047 (arg_action == ACTION_POWEROFF ||
6048 arg_action == ACTION_REBOOT)) {
6049 r = reboot_with_logind(bus, arg_action);
6054 log_error("Must be root.");
6059 _cleanup_free_ char *m;
6061 m = strv_join(arg_wall, " ");
6065 r = send_shutdownd(arg_when,
6066 arg_action == ACTION_HALT ? 'H' :
6067 arg_action == ACTION_POWEROFF ? 'P' :
6068 arg_action == ACTION_KEXEC ? 'K' :
6075 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
6077 char date[FORMAT_TIMESTAMP_MAX];
6079 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
6080 format_timestamp(date, sizeof(date), arg_when));
6085 if (!arg_dry && !arg_force)
6086 return start_with_fallback(bus);
6089 if (sd_booted() > 0)
6090 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
6092 r = utmp_put_shutdown();
6094 log_warning("Failed to write utmp record: %s", strerror(-r));
6101 r = halt_now(arg_action);
6102 log_error("Failed to reboot: %s", strerror(-r));
6107 static int runlevel_main(void) {
6108 int r, runlevel, previous;
6110 r = utmp_get_runlevel(&runlevel, &previous);
6117 previous <= 0 ? 'N' : previous,
6118 runlevel <= 0 ? 'N' : runlevel);
6123 int main(int argc, char*argv[]) {
6124 _cleanup_bus_unref_ sd_bus *bus = NULL;
6127 setlocale(LC_ALL, "");
6128 log_parse_environment();
6131 /* Explicitly not on_tty() to avoid setting cached value.
6132 * This becomes relevant for piping output which might be
6134 original_stdout_is_tty = isatty(STDOUT_FILENO);
6136 r = parse_argv(argc, argv);
6140 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
6141 * let's shortcut this */
6142 if (arg_action == ACTION_RUNLEVEL) {
6143 r = runlevel_main();
6147 if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
6148 log_info("Running in chroot, ignoring request.");
6154 r = bus_open_transport_systemd(arg_transport, arg_host, arg_scope != UNIT_FILE_SYSTEM, &bus);
6156 /* systemctl_main() will print an error message for the bus
6157 * connection, but only if it needs to */
6159 switch (arg_action) {
6161 case ACTION_SYSTEMCTL:
6162 r = systemctl_main(bus, argc, argv, r);
6166 case ACTION_POWEROFF:
6172 case ACTION_RUNLEVEL2:
6173 case ACTION_RUNLEVEL3:
6174 case ACTION_RUNLEVEL4:
6175 case ACTION_RUNLEVEL5:
6177 case ACTION_EMERGENCY:
6178 case ACTION_DEFAULT:
6179 r = start_with_fallback(bus);
6184 r = reload_with_fallback(bus);
6187 case ACTION_CANCEL_SHUTDOWN: {
6188 _cleanup_free_ char *m = NULL;
6191 m = strv_join(arg_wall, " ");
6198 r = send_shutdownd(arg_when, SD_SHUTDOWN_NONE, false, !arg_no_wall, m);
6200 log_warning("Failed to talk to shutdownd, shutdown hasn't been cancelled: %s", strerror(-r));
6204 case ACTION_RUNLEVEL:
6205 case _ACTION_INVALID:
6207 assert_not_reached("Unknown action");
6212 ask_password_agent_close();
6213 polkit_agent_close();
6215 strv_free(arg_types);
6216 strv_free(arg_states);
6217 strv_free(arg_properties);
6219 return r < 0 ? EXIT_FAILURE : r;