1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
22 #include <sys/reboot.h>
29 #include <sys/ioctl.h>
33 #include <sys/socket.h>
36 #include <sys/prctl.h>
37 #include <dbus/dbus.h>
39 #include <systemd/sd-daemon.h>
40 #include <systemd/sd-shutdown.h>
41 #include <systemd/sd-login.h>
47 #include "utmp-wtmp.h"
50 #include "path-util.h"
52 #include "dbus-common.h"
53 #include "cgroup-show.h"
54 #include "cgroup-util.h"
56 #include "path-lookup.h"
57 #include "conf-parser.h"
58 #include "exit-status.h"
59 #include "bus-errors.h"
61 #include "unit-name.h"
63 #include "spawn-ask-password-agent.h"
64 #include "spawn-polkit-agent.h"
66 #include "logs-show.h"
67 #include "path-util.h"
68 #include "socket-util.h"
71 static char **arg_types = NULL;
72 static char **arg_load_states = NULL;
73 static char **arg_properties = NULL;
74 static bool arg_all = false;
75 static enum dependency {
80 } arg_dependency = DEPENDENCY_FORWARD;
81 static const char *arg_job_mode = "replace";
82 static UnitFileScope arg_scope = UNIT_FILE_SYSTEM;
83 static bool arg_no_block = false;
84 static bool arg_no_legend = false;
85 static bool arg_no_pager = false;
86 static bool arg_no_wtmp = false;
87 static bool arg_no_wall = false;
88 static bool arg_no_reload = false;
89 static bool arg_show_types = false;
90 static bool arg_ignore_inhibitors = false;
91 static bool arg_dry = false;
92 static bool arg_quiet = false;
93 static bool arg_full = false;
94 static int arg_force = 0;
95 static bool arg_ask_password = true;
96 static bool arg_failed = false;
97 static bool arg_runtime = false;
98 static char **arg_wall = NULL;
99 static const char *arg_kill_who = NULL;
100 static int arg_signal = SIGTERM;
101 static const char *arg_root = NULL;
102 static usec_t arg_when = 0;
124 ACTION_CANCEL_SHUTDOWN,
126 } arg_action = ACTION_SYSTEMCTL;
127 static enum transport {
131 } arg_transport = TRANSPORT_NORMAL;
132 static char *arg_host = NULL;
133 static char *arg_user = NULL;
134 static unsigned arg_lines = 10;
135 static OutputMode arg_output = OUTPUT_SHORT;
136 static bool arg_plain = false;
138 static bool private_bus = false;
140 static int daemon_reload(DBusConnection *bus, char **args);
141 static void halt_now(enum action a);
143 static void pager_open_if_enabled(void) {
151 static void ask_password_agent_open_if_enabled(void) {
153 /* Open the password agent as a child process if necessary */
155 if (!arg_ask_password)
158 if (arg_scope != UNIT_FILE_SYSTEM)
161 ask_password_agent_open();
165 static void polkit_agent_open_if_enabled(void) {
167 /* Open the polkit agent as a child process if necessary */
169 if (!arg_ask_password)
172 if (arg_scope != UNIT_FILE_SYSTEM)
179 static const char *ansi_highlight(bool b) {
184 return b ? ANSI_HIGHLIGHT_ON : ANSI_HIGHLIGHT_OFF;
187 static const char *ansi_highlight_red(bool b) {
192 return b ? ANSI_HIGHLIGHT_RED_ON : ANSI_HIGHLIGHT_OFF;
195 static const char *ansi_highlight_green(bool b) {
200 return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF;
203 static int translate_bus_error_to_exit_status(int r, const DBusError *error) {
206 if (!dbus_error_is_set(error))
209 if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) ||
210 dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
211 dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
212 dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
213 return EXIT_NOPERMISSION;
215 if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
216 return EXIT_NOTINSTALLED;
218 if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
219 dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED))
220 return EXIT_NOTIMPLEMENTED;
222 if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
223 return EXIT_NOTCONFIGURED;
231 static void warn_wall(enum action a) {
232 static const char *table[_ACTION_MAX] = {
233 [ACTION_HALT] = "The system is going down for system halt NOW!",
234 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
235 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
236 [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!",
237 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
238 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!",
239 [ACTION_CANCEL_SHUTDOWN] = "The system shutdown has been cancelled NOW!"
246 _cleanup_free_ char *p;
248 p = strv_join(arg_wall, " ");
263 utmp_wall(table[a], NULL);
266 static bool avoid_bus(void) {
268 if (running_in_chroot() > 0)
271 if (sd_booted() <= 0)
274 if (!isempty(arg_root))
277 if (arg_scope == UNIT_FILE_GLOBAL)
283 static int compare_unit_info(const void *a, const void *b) {
285 const struct unit_info *u = a, *v = b;
287 d1 = strrchr(u->id, '.');
288 d2 = strrchr(v->id, '.');
293 r = strcasecmp(d1, d2);
298 return strcasecmp(u->id, v->id);
301 static bool output_show_unit(const struct unit_info *u) {
305 return streq(u->active_state, "failed");
307 return (!arg_types || ((dot = strrchr(u->id, '.')) &&
308 strv_find(arg_types, dot+1))) &&
309 (!arg_load_states || strv_find(arg_load_states, u->load_state)) &&
310 (arg_all || !(streq(u->active_state, "inactive")
311 || u->following[0]) || u->job_id > 0);
314 static void output_units_list(const struct unit_info *unit_infos, unsigned c) {
315 unsigned id_len, max_id_len, active_len, sub_len, job_len, desc_len, n_shown = 0;
316 const struct unit_info *u;
319 max_id_len = sizeof("UNIT")-1;
320 active_len = sizeof("ACTIVE")-1;
321 sub_len = sizeof("SUB")-1;
322 job_len = sizeof("JOB")-1;
325 for (u = unit_infos; u < unit_infos + c; u++) {
326 if (!output_show_unit(u))
329 max_id_len = MAX(max_id_len, strlen(u->id));
330 active_len = MAX(active_len, strlen(u->active_state));
331 sub_len = MAX(sub_len, strlen(u->sub_state));
332 if (u->job_id != 0) {
333 job_len = MAX(job_len, strlen(u->job_type));
340 id_len = MIN(max_id_len, 25u);
341 basic_len = 5 + id_len + 5 + active_len + sub_len;
343 basic_len += job_len + 1;
344 if (basic_len < (unsigned) columns()) {
345 unsigned extra_len, incr;
346 extra_len = columns() - basic_len;
347 /* Either UNIT already got 25, or is fully satisfied.
348 * Grant up to 25 to DESC now. */
349 incr = MIN(extra_len, 25u);
352 /* split the remaining space between UNIT and DESC,
353 * but do not give UNIT more than it needs. */
355 incr = MIN(extra_len / 2, max_id_len - id_len);
357 desc_len += extra_len - incr;
363 for (u = unit_infos; u < unit_infos + c; u++) {
364 _cleanup_free_ char *e = NULL;
365 const char *on_loaded, *off_loaded, *on = "";
366 const char *on_active, *off_active, *off = "";
368 if (!output_show_unit(u))
371 if (!n_shown && !arg_no_legend) {
372 printf("%-*s %-6s %-*s %-*s ", id_len, "UNIT", "LOAD",
373 active_len, "ACTIVE", sub_len, "SUB");
375 printf("%-*s ", job_len, "JOB");
376 if (!arg_full && arg_no_pager)
377 printf("%.*s\n", desc_len, "DESCRIPTION");
379 printf("%s\n", "DESCRIPTION");
384 if (streq(u->load_state, "error")) {
385 on_loaded = on = ansi_highlight_red(true);
386 off_loaded = off = ansi_highlight_red(false);
388 on_loaded = off_loaded = "";
390 if (streq(u->active_state, "failed")) {
391 on_active = on = ansi_highlight_red(true);
392 off_active = off = ansi_highlight_red(false);
394 on_active = off_active = "";
396 e = arg_full ? NULL : ellipsize(u->id, id_len, 33);
398 printf("%s%-*s%s %s%-6s%s %s%-*s %-*s%s %-*s",
399 on, id_len, e ? e : u->id, off,
400 on_loaded, u->load_state, off_loaded,
401 on_active, active_len, u->active_state,
402 sub_len, u->sub_state, off_active,
403 job_count ? job_len + 1 : 0, u->job_id ? u->job_type : "");
404 if (!arg_full && arg_no_pager)
405 printf("%.*s\n", desc_len, u->description);
407 printf("%s\n", u->description);
410 if (!arg_no_legend) {
411 const char *on, *off;
414 printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
415 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
416 "SUB = The low-level unit activation state, values depend on unit type.\n");
418 printf("JOB = Pending job for the unit.\n");
420 on = ansi_highlight(true);
421 off = ansi_highlight(false);
423 on = ansi_highlight_red(true);
424 off = ansi_highlight_red(false);
428 printf("%s%u loaded units listed.%s\n"
429 "To show all installed unit files use 'systemctl list-unit-files'.\n",
432 printf("%s%u loaded units listed.%s Pass --all to see loaded but inactive units, too.\n"
433 "To show all installed unit files use 'systemctl list-unit-files'.\n",
438 static int get_unit_list(DBusConnection *bus, DBusMessage **reply,
439 struct unit_info **unit_infos, unsigned *c) {
440 DBusMessageIter iter, sub;
448 r = bus_method_call_with_reply(
450 "org.freedesktop.systemd1",
451 "/org/freedesktop/systemd1",
452 "org.freedesktop.systemd1.Manager",
460 if (!dbus_message_iter_init(*reply, &iter) ||
461 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
462 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
463 log_error("Failed to parse reply.");
467 dbus_message_iter_recurse(&iter, &sub);
469 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
470 if (!GREEDY_REALLOC(*unit_infos, size, *c + 1))
473 bus_parse_unit_info(&sub, *unit_infos + *c);
476 dbus_message_iter_next(&sub);
482 static int list_units(DBusConnection *bus, char **args) {
483 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
484 _cleanup_free_ struct unit_info *unit_infos = NULL;
488 pager_open_if_enabled();
490 r = get_unit_list(bus, &reply, &unit_infos, &c);
494 qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info);
496 output_units_list(unit_infos, c);
501 static int get_triggered_units(DBusConnection *bus, const char* unit_path,
504 const char *interface = "org.freedesktop.systemd1.Unit",
505 *triggers_property = "Triggers";
506 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
507 DBusMessageIter iter, sub;
510 r = bus_method_call_with_reply(bus,
511 "org.freedesktop.systemd1",
513 "org.freedesktop.DBus.Properties",
517 DBUS_TYPE_STRING, &interface,
518 DBUS_TYPE_STRING, &triggers_property,
523 if (!dbus_message_iter_init(reply, &iter) ||
524 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
525 log_error("Failed to parse reply.");
529 dbus_message_iter_recurse(&iter, &sub);
530 dbus_message_iter_recurse(&sub, &iter);
533 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
536 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
537 log_error("Failed to parse reply.");
541 dbus_message_iter_get_basic(&sub, &unit);
542 r = strv_extend(triggered, unit);
546 dbus_message_iter_next(&sub);
552 static int get_listening(DBusConnection *bus, const char* unit_path,
553 char*** listen, unsigned *c)
555 const char *interface = "org.freedesktop.systemd1.Socket",
556 *listen_property = "Listen";
557 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
558 DBusMessageIter iter, sub;
561 r = bus_method_call_with_reply(bus,
562 "org.freedesktop.systemd1",
564 "org.freedesktop.DBus.Properties",
568 DBUS_TYPE_STRING, &interface,
569 DBUS_TYPE_STRING, &listen_property,
574 if (!dbus_message_iter_init(reply, &iter) ||
575 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
576 log_error("Failed to parse reply.");
580 dbus_message_iter_recurse(&iter, &sub);
581 dbus_message_iter_recurse(&sub, &iter);
584 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
585 DBusMessageIter sub2;
586 const char *type, *path;
588 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
589 log_error("Failed to parse reply.");
593 dbus_message_iter_recurse(&sub, &sub2);
595 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
596 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0) {
597 r = strv_extend(listen, type);
601 r = strv_extend(listen, path);
608 dbus_message_iter_next(&sub);
620 /* Note: triggered is a list here, although it almost certainly
621 * will always be one unit. Nevertheless, dbus API allows for multiple
622 * values, so let's follow that.*/
625 /* The strv above is shared. free is set only in the first one. */
629 static int socket_info_compare(struct socket_info *a, struct socket_info *b) {
630 int o = strcmp(a->path, b->path);
632 o = strcmp(a->type, b->type);
636 static int output_sockets_list(struct socket_info *socket_infos, unsigned cs) {
637 struct socket_info *s;
638 unsigned pathlen = sizeof("LISTEN") - 1,
639 typelen = (sizeof("TYPE") - 1) * arg_show_types,
640 socklen = sizeof("UNIT") - 1,
641 servlen = sizeof("ACTIVATES") - 1;
642 const char *on, *off;
644 for (s = socket_infos; s < socket_infos + cs; s++) {
648 socklen = MAX(socklen, strlen(s->id));
650 typelen = MAX(typelen, strlen(s->type));
651 pathlen = MAX(pathlen, strlen(s->path));
653 STRV_FOREACH(a, s->triggered)
654 tmp += strlen(*a) + 2*(a != s->triggered);
655 servlen = MAX(servlen, tmp);
660 printf("%-*s %-*.*s%-*s %s\n",
662 typelen + arg_show_types, typelen + arg_show_types, "TYPE ",
666 for (s = socket_infos; s < socket_infos + cs; s++) {
670 printf("%-*s %-*s %-*s",
671 pathlen, s->path, typelen, s->type, socklen, s->id);
674 pathlen, s->path, socklen, s->id);
675 STRV_FOREACH(a, s->triggered)
677 a == s->triggered ? "" : ",", *a);
681 on = ansi_highlight(true);
682 off = ansi_highlight(false);
686 on = ansi_highlight_red(true);
687 off = ansi_highlight_red(false);
690 if (!arg_no_legend) {
691 printf("%s%u sockets listed.%s\n", on, cs, off);
693 printf("Pass --all to see loaded but inactive sockets, too.\n");
699 static int list_sockets(DBusConnection *bus, char **args) {
700 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
701 _cleanup_free_ struct unit_info *unit_infos = NULL;
702 struct socket_info *socket_infos = NULL;
703 const struct unit_info *u;
704 struct socket_info *s;
705 unsigned cu = 0, cs = 0;
709 pager_open_if_enabled();
711 r = get_unit_list(bus, &reply, &unit_infos, &cu);
715 for (u = unit_infos; u < unit_infos + cu; u++) {
717 _cleanup_strv_free_ char **listen = NULL, **triggered = NULL;
720 if (!output_show_unit(u))
723 if ((dot = strrchr(u->id, '.')) && !streq(dot+1, "socket"))
726 r = get_triggered_units(bus, u->unit_path, &triggered);
730 r = get_listening(bus, u->unit_path, &listen, &c);
734 if (!GREEDY_REALLOC(socket_infos, size, cs + c)) {
739 for (i = 0; i < c; i++)
740 socket_infos[cs + i] = (struct socket_info) {
743 .path = listen[i*2 + 1],
744 .triggered = triggered,
745 .own_triggered = i==0,
748 /* from this point on we will cleanup those socket_infos */
751 listen = triggered = NULL; /* avoid cleanup */
754 qsort(socket_infos, cs, sizeof(struct socket_info),
755 (__compar_fn_t) socket_info_compare);
757 output_sockets_list(socket_infos, cs);
760 assert(cs == 0 || socket_infos);
761 for (s = socket_infos; s < socket_infos + cs; s++) {
764 if (s->own_triggered)
765 strv_free(s->triggered);
772 static int compare_unit_file_list(const void *a, const void *b) {
774 const UnitFileList *u = a, *v = b;
776 d1 = strrchr(u->path, '.');
777 d2 = strrchr(v->path, '.');
782 r = strcasecmp(d1, d2);
787 return strcasecmp(path_get_file_name(u->path), path_get_file_name(v->path));
790 static bool output_show_unit_file(const UnitFileList *u) {
793 return !arg_types || ((dot = strrchr(u->path, '.')) && strv_find(arg_types, dot+1));
796 static void output_unit_file_list(const UnitFileList *units, unsigned c) {
797 unsigned max_id_len, id_cols, state_cols, n_shown = 0;
798 const UnitFileList *u;
800 max_id_len = sizeof("UNIT FILE")-1;
801 state_cols = sizeof("STATE")-1;
802 for (u = units; u < units + c; u++) {
803 if (!output_show_unit_file(u))
806 max_id_len = MAX(max_id_len, strlen(path_get_file_name(u->path)));
807 state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state)));
812 id_cols = MIN(max_id_len, 25u);
813 basic_cols = 1 + id_cols + state_cols;
814 if (basic_cols < (unsigned) columns())
815 id_cols += MIN(columns() - basic_cols, max_id_len - id_cols);
817 id_cols = max_id_len;
820 printf("%-*s %-*s\n", id_cols, "UNIT FILE", state_cols, "STATE");
822 for (u = units; u < units + c; u++) {
823 _cleanup_free_ char *e = NULL;
824 const char *on, *off;
827 if (!output_show_unit_file(u))
832 if (u->state == UNIT_FILE_MASKED ||
833 u->state == UNIT_FILE_MASKED_RUNTIME ||
834 u->state == UNIT_FILE_DISABLED ||
835 u->state == UNIT_FILE_INVALID) {
836 on = ansi_highlight_red(true);
837 off = ansi_highlight_red(false);
838 } else if (u->state == UNIT_FILE_ENABLED) {
839 on = ansi_highlight_green(true);
840 off = ansi_highlight_green(false);
844 id = path_get_file_name(u->path);
846 e = arg_full ? NULL : ellipsize(id, id_cols, 33);
848 printf("%-*s %s%-*s%s\n",
850 on, state_cols, unit_file_state_to_string(u->state), off);
854 printf("\n%u unit files listed.\n", n_shown);
857 static int list_unit_files(DBusConnection *bus, char **args) {
858 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
859 _cleanup_free_ UnitFileList *units = NULL;
860 DBusMessageIter iter, sub, sub2;
861 unsigned c = 0, n_units = 0;
864 pager_open_if_enabled();
871 h = hashmap_new(string_hash_func, string_compare_func);
875 r = unit_file_get_list(arg_scope, arg_root, h);
877 unit_file_list_free(h);
878 log_error("Failed to get unit file list: %s", strerror(-r));
882 n_units = hashmap_size(h);
883 units = new(UnitFileList, n_units);
885 unit_file_list_free(h);
889 HASHMAP_FOREACH(u, h, i) {
890 memcpy(units + c++, u, sizeof(UnitFileList));
896 r = bus_method_call_with_reply(
898 "org.freedesktop.systemd1",
899 "/org/freedesktop/systemd1",
900 "org.freedesktop.systemd1.Manager",
908 if (!dbus_message_iter_init(reply, &iter) ||
909 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
910 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
911 log_error("Failed to parse reply.");
915 dbus_message_iter_recurse(&iter, &sub);
917 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
921 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT);
926 n_units = MAX(2*c, 16u);
927 w = realloc(units, sizeof(struct UnitFileList) * n_units);
936 dbus_message_iter_recurse(&sub, &sub2);
938 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->path, true) < 0 ||
939 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, false) < 0) {
940 log_error("Failed to parse reply.");
944 u->state = unit_file_state_from_string(state);
946 dbus_message_iter_next(&sub);
952 qsort(units, c, sizeof(UnitFileList), compare_unit_file_list);
953 output_unit_file_list(units, c);
959 static int list_dependencies_print(const char *name, int level, unsigned int branches, bool last) {
961 _cleanup_free_ char *n = NULL;
963 size_t max_len = MAX(columns(),20u);
966 for (i = level - 1; i >= 0; i--) {
968 if(len > max_len - 3 && !arg_full) {
969 printf("%s...\n",max_len % 2 ? "" : " ");
972 printf("%s", draw_special_char(branches & (1 << i) ? DRAW_TREE_VERT : DRAW_TREE_SPACE));
975 if(len > max_len - 3 && !arg_full) {
976 printf("%s...\n",max_len % 2 ? "" : " ");
979 printf("%s", draw_special_char(last ? DRAW_TREE_RIGHT : DRAW_TREE_BRANCH));
983 printf("%s\n", name);
987 n = ellipsize(name, max_len-len, 100);
995 static int list_dependencies_get_dependencies(DBusConnection *bus, const char *name, char ***deps) {
996 static const char *dependencies[] = {
997 [DEPENDENCY_FORWARD] = "Requires\0"
998 "RequiresOverridable\0"
1000 "RequisiteOverridable\0"
1002 [DEPENDENCY_REVERSE] = "RequiredBy\0"
1003 "RequiredByOverridable\0"
1006 [DEPENDENCY_AFTER] = "After\0",
1007 [DEPENDENCY_BEFORE] = "Before\0",
1010 _cleanup_free_ char *path;
1011 const char *interface = "org.freedesktop.systemd1.Unit";
1013 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1014 DBusMessageIter iter, sub, sub2, sub3;
1023 path = unit_dbus_path_from_name(name);
1029 r = bus_method_call_with_reply(
1031 "org.freedesktop.systemd1",
1033 "org.freedesktop.DBus.Properties",
1037 DBUS_TYPE_STRING, &interface,
1042 if (!dbus_message_iter_init(reply, &iter) ||
1043 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
1044 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
1045 log_error("Failed to parse reply.");
1050 dbus_message_iter_recurse(&iter, &sub);
1052 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1055 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_DICT_ENTRY);
1056 dbus_message_iter_recurse(&sub, &sub2);
1058 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
1059 log_error("Failed to parse reply.");
1064 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
1065 log_error("Failed to parse reply.");
1070 dbus_message_iter_recurse(&sub2, &sub3);
1071 dbus_message_iter_next(&sub);
1073 assert(arg_dependency < ELEMENTSOF(dependencies));
1074 if (!nulstr_contains(dependencies[arg_dependency], prop))
1077 if (dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_ARRAY) {
1078 if (dbus_message_iter_get_element_type(&sub3) == DBUS_TYPE_STRING) {
1079 DBusMessageIter sub4;
1080 dbus_message_iter_recurse(&sub3, &sub4);
1082 while (dbus_message_iter_get_arg_type(&sub4) != DBUS_TYPE_INVALID) {
1085 assert(dbus_message_iter_get_arg_type(&sub4) == DBUS_TYPE_STRING);
1086 dbus_message_iter_get_basic(&sub4, &s);
1088 r = strv_extend(&ret, s);
1094 dbus_message_iter_next(&sub4);
1107 static int list_dependencies_compare(const void *_a, const void *_b) {
1108 const char **a = (const char**) _a, **b = (const char**) _b;
1109 if (unit_name_to_type(*a) == UNIT_TARGET && unit_name_to_type(*b) != UNIT_TARGET)
1111 if (unit_name_to_type(*a) != UNIT_TARGET && unit_name_to_type(*b) == UNIT_TARGET)
1113 return strcasecmp(*a, *b);
1116 static int list_dependencies_one(DBusConnection *bus, const char *name, int level, char ***units, unsigned int branches) {
1117 _cleanup_strv_free_ char **deps = NULL, **u;
1121 u = strv_append(*units, name);
1125 r = list_dependencies_get_dependencies(bus, name, &deps);
1129 qsort(deps, strv_length(deps), sizeof (char*), list_dependencies_compare);
1131 STRV_FOREACH(c, deps) {
1132 if (strv_contains(u, *c)) {
1134 r = list_dependencies_print("...", level + 1, (branches << 1) | (c[1] == NULL ? 0 : 1), 1);
1141 r = list_dependencies_print(*c, level, branches, c[1] == NULL);
1145 if (arg_all || unit_name_to_type(*c) == UNIT_TARGET) {
1146 r = list_dependencies_one(bus, *c, level + 1, &u, (branches << 1) | (c[1] == NULL ? 0 : 1));
1159 static int list_dependencies(DBusConnection *bus, char **args) {
1160 _cleanup_free_ char *unit = NULL;
1161 _cleanup_strv_free_ char **units = NULL;
1167 unit = unit_name_mangle(args[1]);
1172 u = SPECIAL_DEFAULT_TARGET;
1174 pager_open_if_enabled();
1178 return list_dependencies_one(bus, u, 0, &units, 0);
1181 static int get_default(DBusConnection *bus, char **args) {
1183 _cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
1185 _cleanup_dbus_error_free_ DBusError error;
1187 dbus_error_init(&error);
1189 if (!bus || avoid_bus()) {
1190 r = unit_file_get_default(arg_scope, arg_root, &path);
1193 log_error("Operation failed: %s", strerror(-r));
1199 r = bus_method_call_with_reply(
1201 "org.freedesktop.systemd1",
1202 "/org/freedesktop/systemd1",
1203 "org.freedesktop.systemd1.Manager",
1210 log_error("Operation failed: %s", strerror(-r));
1214 if (!dbus_message_get_args(reply, &error,
1215 DBUS_TYPE_STRING, &path,
1216 DBUS_TYPE_INVALID)) {
1217 log_error("Failed to parse reply: %s", bus_error_message(&error));
1218 dbus_error_free(&error);
1224 printf("%s\n", path);
1227 if ((!bus || avoid_bus()) && path)
1236 char *name, *type, *state;
1239 static void list_jobs_print(struct job_info* jobs, size_t n) {
1242 const char *on, *off;
1243 bool shorten = false;
1245 assert(n == 0 || jobs);
1248 on = ansi_highlight_green(true);
1249 off = ansi_highlight_green(false);
1251 printf("%sNo jobs running.%s\n", on, off);
1255 pager_open_if_enabled();
1258 /* JOB UNIT TYPE STATE */
1259 unsigned l0 = 3, l1 = 4, l2 = 4, l3 = 5;
1261 for (i = 0, j = jobs; i < n; i++, j++) {
1262 assert(j->name && j->type && j->state);
1263 l0 = MAX(l0, DECIMAL_STR_WIDTH(j->id));
1264 l1 = MAX(l1, strlen(j->name));
1265 l2 = MAX(l2, strlen(j->type));
1266 l3 = MAX(l3, strlen(j->state));
1269 if (!arg_full && l0 + 1 + l1 + l2 + 1 + l3 > columns()) {
1270 l1 = MAX(33u, columns() - l0 - l2 - l3 - 3);
1275 printf("%*s %-*s %-*s %-*s\n",
1281 for (i = 0, j = jobs; i < n; i++, j++) {
1282 _cleanup_free_ char *e = NULL;
1284 if (streq(j->state, "running")) {
1285 on = ansi_highlight(true);
1286 off = ansi_highlight(false);
1290 e = shorten ? ellipsize(j->name, l1, 33) : NULL;
1291 printf("%*u %s%-*s%s %-*s %s%-*s%s\n",
1293 on, l1, e ? e : j->name, off,
1295 on, l3, j->state, off);
1299 on = ansi_highlight(true);
1300 off = ansi_highlight(false);
1303 printf("\n%s%zu jobs listed%s.\n", on, n, off);
1306 static int list_jobs(DBusConnection *bus, char **args) {
1307 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1308 DBusMessageIter iter, sub, sub2;
1310 struct job_info *jobs = NULL;
1311 size_t size = 0, used = 0;
1313 r = bus_method_call_with_reply(
1315 "org.freedesktop.systemd1",
1316 "/org/freedesktop/systemd1",
1317 "org.freedesktop.systemd1.Manager",
1325 if (!dbus_message_iter_init(reply, &iter) ||
1326 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
1327 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
1328 log_error("Failed to parse reply.");
1332 dbus_message_iter_recurse(&iter, &sub);
1334 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1335 const char *name, *type, *state, *job_path, *unit_path;
1338 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
1339 log_error("Failed to parse reply.");
1343 dbus_message_iter_recurse(&sub, &sub2);
1345 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
1346 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
1347 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
1348 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
1349 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
1350 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
1351 log_error("Failed to parse reply.");
1356 if (!GREEDY_REALLOC(jobs, size, used + 1)) {
1361 jobs[used++] = (struct job_info) { id,
1365 if (!jobs[used-1].name || !jobs[used-1].type || !jobs[used-1].state) {
1370 dbus_message_iter_next(&sub);
1373 list_jobs_print(jobs, used);
1377 free(jobs[used].name);
1378 free(jobs[used].type);
1379 free(jobs[used].state);
1386 static int load_unit(DBusConnection *bus, char **args) {
1391 STRV_FOREACH(name, args+1) {
1392 _cleanup_free_ char *n = NULL;
1395 n = unit_name_mangle(*name);
1399 r = bus_method_call_with_reply(
1401 "org.freedesktop.systemd1",
1402 "/org/freedesktop/systemd1",
1403 "org.freedesktop.systemd1.Manager",
1407 DBUS_TYPE_STRING, &n,
1416 static int cancel_job(DBusConnection *bus, char **args) {
1421 if (strv_length(args) <= 1)
1422 return daemon_reload(bus, args);
1424 STRV_FOREACH(name, args+1) {
1428 r = safe_atou32(*name, &id);
1430 log_error("Failed to parse job id: %s", strerror(-r));
1434 r = bus_method_call_with_reply(
1436 "org.freedesktop.systemd1",
1437 "/org/freedesktop/systemd1",
1438 "org.freedesktop.systemd1.Manager",
1442 DBUS_TYPE_UINT32, &id,
1451 static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
1452 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1453 dbus_bool_t b = FALSE;
1454 DBusMessageIter iter, sub;
1456 *interface = "org.freedesktop.systemd1.Unit",
1457 *property = "NeedDaemonReload",
1459 _cleanup_free_ char *n = NULL;
1462 /* We ignore all errors here, since this is used to show a warning only */
1464 n = unit_name_mangle(unit);
1468 r = bus_method_call_with_reply(
1470 "org.freedesktop.systemd1",
1471 "/org/freedesktop/systemd1",
1472 "org.freedesktop.systemd1.Manager",
1476 DBUS_TYPE_STRING, &n,
1481 if (!dbus_message_get_args(reply, NULL,
1482 DBUS_TYPE_OBJECT_PATH, &path,
1486 dbus_message_unref(reply);
1489 r = bus_method_call_with_reply(
1491 "org.freedesktop.systemd1",
1493 "org.freedesktop.DBus.Properties",
1497 DBUS_TYPE_STRING, &interface,
1498 DBUS_TYPE_STRING, &property,
1503 if (!dbus_message_iter_init(reply, &iter) ||
1504 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
1507 dbus_message_iter_recurse(&iter, &sub);
1508 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
1511 dbus_message_iter_get_basic(&sub, &b);
1515 typedef struct WaitData {
1522 static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
1523 _cleanup_dbus_error_free_ DBusError error;
1526 dbus_error_init(&error);
1532 log_debug("Got D-Bus request: %s.%s() on %s",
1533 dbus_message_get_interface(message),
1534 dbus_message_get_member(message),
1535 dbus_message_get_path(message));
1537 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
1538 log_error("Warning! D-Bus connection terminated.");
1539 dbus_connection_close(connection);
1541 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1543 const char *path, *result, *unit;
1545 if (dbus_message_get_args(message, &error,
1546 DBUS_TYPE_UINT32, &id,
1547 DBUS_TYPE_OBJECT_PATH, &path,
1548 DBUS_TYPE_STRING, &unit,
1549 DBUS_TYPE_STRING, &result,
1550 DBUS_TYPE_INVALID)) {
1552 free(set_remove(d->set, (char*) path));
1554 if (!isempty(result))
1555 d->result = strdup(result);
1558 d->name = strdup(unit);
1560 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1563 dbus_error_free(&error);
1564 if (dbus_message_get_args(message, &error,
1565 DBUS_TYPE_UINT32, &id,
1566 DBUS_TYPE_OBJECT_PATH, &path,
1567 DBUS_TYPE_STRING, &result,
1568 DBUS_TYPE_INVALID)) {
1569 /* Compatibility with older systemd versions <
1570 * 183 during upgrades. This should be dropped
1572 free(set_remove(d->set, (char*) path));
1575 d->result = strdup(result);
1577 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1581 log_error("Failed to parse message: %s", bus_error_message(&error));
1584 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1587 static int enable_wait_for_jobs(DBusConnection *bus) {
1595 dbus_error_init(&error);
1596 dbus_bus_add_match(bus,
1598 "sender='org.freedesktop.systemd1',"
1599 "interface='org.freedesktop.systemd1.Manager',"
1600 "member='JobRemoved',"
1601 "path='/org/freedesktop/systemd1'",
1604 if (dbus_error_is_set(&error)) {
1605 log_error("Failed to add match: %s", bus_error_message(&error));
1606 dbus_error_free(&error);
1610 /* This is slightly dirty, since we don't undo the match registrations. */
1614 static int wait_for_jobs(DBusConnection *bus, Set *s) {
1616 WaitData d = { .set = s };
1621 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL))
1624 while (!set_isempty(s)) {
1626 if (!dbus_connection_read_write_dispatch(bus, -1)) {
1627 log_error("Disconnected from bus.");
1628 return -ECONNREFUSED;
1635 if (streq(d.result, "timeout"))
1636 log_error("Job for %s timed out.", strna(d.name));
1637 else if (streq(d.result, "canceled"))
1638 log_error("Job for %s canceled.", strna(d.name));
1639 else if (streq(d.result, "dependency"))
1640 log_error("A dependency job for %s failed. See 'journalctl -xn' for details.", strna(d.name));
1641 else if (!streq(d.result, "done") && !streq(d.result, "skipped"))
1642 log_error("Job for %s failed. See 'systemctl status %s' and 'journalctl -xn' for details.", strna(d.name), strna(d.name));
1645 if (streq_ptr(d.result, "timeout"))
1647 else if (streq_ptr(d.result, "canceled"))
1649 else if (!streq_ptr(d.result, "done") && !streq_ptr(d.result, "skipped"))
1660 dbus_connection_remove_filter(bus, wait_filter, &d);
1664 static int check_one_unit(DBusConnection *bus, const char *name, char **check_states, bool quiet) {
1665 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1666 _cleanup_free_ char *n = NULL;
1667 DBusMessageIter iter, sub;
1669 *interface = "org.freedesktop.systemd1.Unit",
1670 *property = "ActiveState";
1671 const char *state, *path;
1677 dbus_error_init(&error);
1679 n = unit_name_mangle(name);
1683 r = bus_method_call_with_reply (
1685 "org.freedesktop.systemd1",
1686 "/org/freedesktop/systemd1",
1687 "org.freedesktop.systemd1.Manager",
1691 DBUS_TYPE_STRING, &n,
1694 dbus_error_free(&error);
1701 if (!dbus_message_get_args(reply, NULL,
1702 DBUS_TYPE_OBJECT_PATH, &path,
1703 DBUS_TYPE_INVALID)) {
1704 log_error("Failed to parse reply.");
1708 dbus_message_unref(reply);
1711 r = bus_method_call_with_reply(
1713 "org.freedesktop.systemd1",
1715 "org.freedesktop.DBus.Properties",
1719 DBUS_TYPE_STRING, &interface,
1720 DBUS_TYPE_STRING, &property,
1728 if (!dbus_message_iter_init(reply, &iter) ||
1729 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1730 log_error("Failed to parse reply.");
1734 dbus_message_iter_recurse(&iter, &sub);
1736 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1737 log_error("Failed to parse reply.");
1741 dbus_message_iter_get_basic(&sub, &state);
1746 return strv_find(check_states, state) ? 1 : 0;
1749 static void check_triggering_units(
1750 DBusConnection *bus,
1751 const char *unit_name) {
1753 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1754 DBusMessageIter iter, sub;
1755 const char *interface = "org.freedesktop.systemd1.Unit",
1756 *load_state_property = "LoadState",
1757 *triggered_by_property = "TriggeredBy",
1759 _cleanup_free_ char *unit_path = NULL, *n = NULL;
1760 bool print_warning_label = true;
1763 n = unit_name_mangle(unit_name);
1769 unit_path = unit_dbus_path_from_name(n);
1775 r = bus_method_call_with_reply(
1777 "org.freedesktop.systemd1",
1779 "org.freedesktop.DBus.Properties",
1783 DBUS_TYPE_STRING, &interface,
1784 DBUS_TYPE_STRING, &load_state_property,
1789 if (!dbus_message_iter_init(reply, &iter) ||
1790 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1791 log_error("Failed to parse reply.");
1795 dbus_message_iter_recurse(&iter, &sub);
1797 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1798 log_error("Failed to parse reply.");
1802 dbus_message_iter_get_basic(&sub, &state);
1804 if (streq(state, "masked"))
1807 dbus_message_unref(reply);
1810 r = bus_method_call_with_reply(
1812 "org.freedesktop.systemd1",
1814 "org.freedesktop.DBus.Properties",
1818 DBUS_TYPE_STRING, &interface,
1819 DBUS_TYPE_STRING, &triggered_by_property,
1824 if (!dbus_message_iter_init(reply, &iter) ||
1825 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1826 log_error("Failed to parse reply.");
1830 dbus_message_iter_recurse(&iter, &sub);
1831 dbus_message_iter_recurse(&sub, &iter);
1834 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1835 const char * const check_states[] = {
1840 const char *service_trigger;
1842 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1843 log_error("Failed to parse reply.");
1847 dbus_message_iter_get_basic(&sub, &service_trigger);
1849 r = check_one_unit(bus, service_trigger, (char**) check_states, true);
1853 if (print_warning_label) {
1854 log_warning("Warning: Stopping %s, but it can still be activated by:", unit_name);
1855 print_warning_label = false;
1858 log_warning(" %s", service_trigger);
1861 dbus_message_iter_next(&sub);
1865 static int start_unit_one(
1866 DBusConnection *bus,
1873 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1874 _cleanup_free_ char *n;
1883 n = unit_name_mangle(name);
1887 r = bus_method_call_with_reply(
1889 "org.freedesktop.systemd1",
1890 "/org/freedesktop/systemd1",
1891 "org.freedesktop.systemd1.Manager",
1895 DBUS_TYPE_STRING, &n,
1896 DBUS_TYPE_STRING, &mode,
1899 if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
1900 /* There's always a fallback possible for
1901 * legacy actions. */
1904 log_error("Failed to issue method call: %s", bus_error_message(error));
1909 if (!dbus_message_get_args(reply, error,
1910 DBUS_TYPE_OBJECT_PATH, &path,
1911 DBUS_TYPE_INVALID)) {
1912 log_error("Failed to parse reply: %s", bus_error_message(error));
1916 if (need_daemon_reload(bus, n))
1917 log_warning("Warning: Unit file of %s changed on disk, 'systemctl %sdaemon-reload' recommended.",
1918 n, arg_scope == UNIT_FILE_SYSTEM ? "" : "--user ");
1927 r = set_consume(s, p);
1929 log_error("Failed to add path to set.");
1937 static const struct {
1941 } action_table[_ACTION_MAX] = {
1942 [ACTION_HALT] = { SPECIAL_HALT_TARGET, "halt", "replace-irreversibly" },
1943 [ACTION_POWEROFF] = { SPECIAL_POWEROFF_TARGET, "poweroff", "replace-irreversibly" },
1944 [ACTION_REBOOT] = { SPECIAL_REBOOT_TARGET, "reboot", "replace-irreversibly" },
1945 [ACTION_KEXEC] = { SPECIAL_KEXEC_TARGET, "kexec", "replace-irreversibly" },
1946 [ACTION_RUNLEVEL2] = { SPECIAL_RUNLEVEL2_TARGET, NULL, "isolate" },
1947 [ACTION_RUNLEVEL3] = { SPECIAL_RUNLEVEL3_TARGET, NULL, "isolate" },
1948 [ACTION_RUNLEVEL4] = { SPECIAL_RUNLEVEL4_TARGET, NULL, "isolate" },
1949 [ACTION_RUNLEVEL5] = { SPECIAL_RUNLEVEL5_TARGET, NULL, "isolate" },
1950 [ACTION_RESCUE] = { SPECIAL_RESCUE_TARGET, "rescue", "isolate" },
1951 [ACTION_EMERGENCY] = { SPECIAL_EMERGENCY_TARGET, "emergency", "isolate" },
1952 [ACTION_DEFAULT] = { SPECIAL_DEFAULT_TARGET, "default", "isolate" },
1953 [ACTION_EXIT] = { SPECIAL_EXIT_TARGET, "exit", "replace-irreversibly" },
1954 [ACTION_SUSPEND] = { SPECIAL_SUSPEND_TARGET, "suspend", "replace-irreversibly" },
1955 [ACTION_HIBERNATE] = { SPECIAL_HIBERNATE_TARGET, "hibernate", "replace-irreversibly" },
1956 [ACTION_HYBRID_SLEEP] = { SPECIAL_HYBRID_SLEEP_TARGET, "hybrid-sleep", "replace-irreversibly" },
1959 static enum action verb_to_action(const char *verb) {
1962 for (i = ACTION_INVALID; i < _ACTION_MAX; i++)
1963 if (action_table[i].verb && streq(verb, action_table[i].verb))
1965 return ACTION_INVALID;
1968 static int start_unit(DBusConnection *bus, char **args) {
1971 const char *method, *mode, *one_name;
1972 _cleanup_set_free_free_ Set *s = NULL;
1973 _cleanup_dbus_error_free_ DBusError error;
1976 dbus_error_init(&error);
1980 ask_password_agent_open_if_enabled();
1982 if (arg_action == ACTION_SYSTEMCTL) {
1985 streq(args[0], "stop") ||
1986 streq(args[0], "condstop") ? "StopUnit" :
1987 streq(args[0], "reload") ? "ReloadUnit" :
1988 streq(args[0], "restart") ? "RestartUnit" :
1990 streq(args[0], "try-restart") ||
1991 streq(args[0], "condrestart") ? "TryRestartUnit" :
1993 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
1995 streq(args[0], "reload-or-try-restart") ||
1996 streq(args[0], "condreload") ||
1998 streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" :
2000 action = verb_to_action(args[0]);
2002 mode = streq(args[0], "isolate") ? "isolate" :
2003 action_table[action].mode ?: arg_job_mode;
2005 one_name = action_table[action].target;
2008 assert(arg_action < ELEMENTSOF(action_table));
2009 assert(action_table[arg_action].target);
2011 method = "StartUnit";
2013 mode = action_table[arg_action].mode;
2014 one_name = action_table[arg_action].target;
2017 if (!arg_no_block) {
2018 ret = enable_wait_for_jobs(bus);
2020 log_error("Could not watch jobs: %s", strerror(-ret));
2024 s = set_new(string_hash_func, string_compare_func);
2030 ret = start_unit_one(bus, method, one_name, mode, &error, s);
2032 ret = translate_bus_error_to_exit_status(ret, &error);
2034 STRV_FOREACH(name, args+1) {
2035 r = start_unit_one(bus, method, *name, mode, &error, s);
2037 ret = translate_bus_error_to_exit_status(r, &error);
2038 dbus_error_free(&error);
2043 if (!arg_no_block) {
2044 r = wait_for_jobs(bus, s);
2048 /* When stopping units, warn if they can still be triggered by
2049 * another active unit (socket, path, timer) */
2050 if (!arg_quiet && streq(method, "StopUnit")) {
2052 check_triggering_units(bus, one_name);
2054 STRV_FOREACH(name, args+1)
2055 check_triggering_units(bus, *name);
2062 /* Ask systemd-logind, which might grant access to unprivileged users
2063 * through PolicyKit */
2064 static int reboot_with_logind(DBusConnection *bus, enum action a) {
2067 dbus_bool_t interactive = true;
2072 polkit_agent_open_if_enabled();
2080 case ACTION_POWEROFF:
2081 method = "PowerOff";
2084 case ACTION_SUSPEND:
2088 case ACTION_HIBERNATE:
2089 method = "Hibernate";
2092 case ACTION_HYBRID_SLEEP:
2093 method = "HybridSleep";
2100 return bus_method_call_with_reply(
2102 "org.freedesktop.login1",
2103 "/org/freedesktop/login1",
2104 "org.freedesktop.login1.Manager",
2108 DBUS_TYPE_BOOLEAN, &interactive,
2115 static int check_inhibitors(DBusConnection *bus, enum action a) {
2117 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
2118 DBusMessageIter iter, sub, sub2;
2121 _cleanup_strv_free_ char **sessions = NULL;
2127 if (arg_ignore_inhibitors || arg_force > 0)
2139 r = bus_method_call_with_reply(
2141 "org.freedesktop.login1",
2142 "/org/freedesktop/login1",
2143 "org.freedesktop.login1.Manager",
2149 /* If logind is not around, then there are no inhibitors... */
2152 if (!dbus_message_iter_init(reply, &iter) ||
2153 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
2154 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
2155 log_error("Failed to parse reply.");
2159 dbus_message_iter_recurse(&iter, &sub);
2160 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2161 const char *what, *who, *why, *mode;
2163 _cleanup_strv_free_ char **sv = NULL;
2164 _cleanup_free_ char *comm = NULL, *user = NULL;
2166 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
2167 log_error("Failed to parse reply.");
2171 dbus_message_iter_recurse(&sub, &sub2);
2173 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &what, true) < 0 ||
2174 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &who, true) < 0 ||
2175 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &why, true) < 0 ||
2176 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &mode, true) < 0 ||
2177 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &uid, true) < 0 ||
2178 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, false) < 0) {
2179 log_error("Failed to parse reply.");
2183 if (!streq(mode, "block"))
2186 sv = strv_split(what, ":");
2190 if (!strv_contains(sv,
2192 a == ACTION_POWEROFF ||
2193 a == ACTION_REBOOT ||
2194 a == ACTION_KEXEC ? "shutdown" : "sleep"))
2197 get_process_comm(pid, &comm);
2198 user = uid_to_name(uid);
2199 log_warning("Operation inhibited by \"%s\" (PID %lu \"%s\", user %s), reason is \"%s\".",
2200 who, (unsigned long) pid, strna(comm), strna(user), why);
2204 dbus_message_iter_next(&sub);
2207 dbus_message_iter_recurse(&iter, &sub);
2209 /* Check for current sessions */
2210 sd_get_sessions(&sessions);
2211 STRV_FOREACH(s, sessions) {
2213 _cleanup_free_ char *type = NULL, *tty = NULL, *seat = NULL, *user = NULL, *service = NULL, *class = NULL;
2215 if (sd_session_get_uid(*s, &uid) < 0 || uid == getuid())
2218 if (sd_session_get_class(*s, &class) < 0 || !streq(class, "user"))
2221 if (sd_session_get_type(*s, &type) < 0 || (!streq(type, "x11") && !streq(type, "tty")))
2224 sd_session_get_tty(*s, &tty);
2225 sd_session_get_seat(*s, &seat);
2226 sd_session_get_service(*s, &service);
2227 user = uid_to_name(uid);
2229 log_warning("User %s is logged in on %s.", strna(user), isempty(tty) ? (isempty(seat) ? strna(service) : seat) : tty);
2236 log_error("Please retry operation after closing inhibitors and logging out other users.\nAlternatively, ignore inhibitors and users with 'systemctl %s -i'.",
2237 action_table[a].verb);
2245 static int start_special(DBusConnection *bus, char **args) {
2251 a = verb_to_action(args[0]);
2253 r = check_inhibitors(bus, a);
2257 if (arg_force >= 2 && geteuid() != 0) {
2258 log_error("Must be root.");
2262 if (arg_force >= 2 &&
2263 (a == ACTION_HALT ||
2264 a == ACTION_POWEROFF ||
2265 a == ACTION_REBOOT))
2268 if (arg_force >= 1 &&
2269 (a == ACTION_HALT ||
2270 a == ACTION_POWEROFF ||
2271 a == ACTION_REBOOT ||
2272 a == ACTION_KEXEC ||
2274 return daemon_reload(bus, args);
2276 /* first try logind, to allow authentication with polkit */
2277 if (geteuid() != 0 &&
2278 (a == ACTION_POWEROFF ||
2279 a == ACTION_REBOOT ||
2280 a == ACTION_SUSPEND ||
2281 a == ACTION_HIBERNATE ||
2282 a == ACTION_HYBRID_SLEEP)) {
2283 r = reboot_with_logind(bus, a);
2288 r = start_unit(bus, args);
2289 if (r == EXIT_SUCCESS)
2295 static int check_unit_active(DBusConnection *bus, char **args) {
2296 const char * const check_states[] = {
2303 int r = 3; /* According to LSB: "program is not running" */
2308 STRV_FOREACH(name, args+1) {
2311 state = check_one_unit(bus, *name, (char**) check_states, arg_quiet);
2321 static int check_unit_failed(DBusConnection *bus, char **args) {
2322 const char * const check_states[] = {
2333 STRV_FOREACH(name, args+1) {
2336 state = check_one_unit(bus, *name, (char**) check_states, arg_quiet);
2346 static int kill_unit(DBusConnection *bus, char **args) {
2354 arg_kill_who = "all";
2356 STRV_FOREACH(name, args+1) {
2357 _cleanup_free_ char *n = NULL;
2359 n = unit_name_mangle(*name);
2363 r = bus_method_call_with_reply(
2365 "org.freedesktop.systemd1",
2366 "/org/freedesktop/systemd1",
2367 "org.freedesktop.systemd1.Manager",
2371 DBUS_TYPE_STRING, &n,
2372 DBUS_TYPE_STRING, &arg_kill_who,
2373 DBUS_TYPE_INT32, &arg_signal,
2381 static int set_cgroup(DBusConnection *bus, char **args) {
2382 _cleanup_free_ char *n = NULL;
2383 const char *method, *runtime;
2391 streq(args[0], "set-cgroup") ? "SetUnitControlGroup" :
2392 streq(args[0], "unset-cgroup") ? "UnsetUnitControlGroup"
2393 : "UnsetUnitControlGroupAttribute";
2395 runtime = arg_runtime ? "runtime" : "persistent";
2397 n = unit_name_mangle(args[1]);
2401 STRV_FOREACH(argument, args + 2) {
2403 r = bus_method_call_with_reply(
2405 "org.freedesktop.systemd1",
2406 "/org/freedesktop/systemd1",
2407 "org.freedesktop.systemd1.Manager",
2411 DBUS_TYPE_STRING, &n,
2412 DBUS_TYPE_STRING, argument,
2413 DBUS_TYPE_STRING, &runtime,
2422 static int set_cgroup_attr(DBusConnection *bus, char **args) {
2423 _cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
2425 DBusMessageIter iter;
2426 _cleanup_free_ char *n = NULL;
2427 const char *runtime;
2433 dbus_error_init(&error);
2435 runtime = arg_runtime ? "runtime" : "persistent";
2437 n = unit_name_mangle(args[1]);
2441 m = dbus_message_new_method_call(
2442 "org.freedesktop.systemd1",
2443 "/org/freedesktop/systemd1",
2444 "org.freedesktop.systemd1.Manager",
2445 "SetUnitControlGroupAttribute");
2449 dbus_message_iter_init_append(m, &iter);
2450 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &n) ||
2451 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &args[2]))
2454 r = bus_append_strv_iter(&iter, args + 3);
2458 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &runtime))
2461 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
2463 log_error("Failed to issue method call: %s", bus_error_message(&error));
2464 dbus_error_free(&error);
2471 static int get_cgroup_attr(DBusConnection *bus, char **args) {
2472 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
2473 _cleanup_free_ char *n = NULL;
2480 n = unit_name_mangle(args[1]);
2484 STRV_FOREACH(argument, args + 2) {
2485 _cleanup_strv_free_ char **list = NULL;
2486 DBusMessageIter iter;
2489 r = bus_method_call_with_reply(
2491 "org.freedesktop.systemd1",
2492 "/org/freedesktop/systemd1",
2493 "org.freedesktop.systemd1.Manager",
2494 "GetUnitControlGroupAttribute",
2497 DBUS_TYPE_STRING, &n,
2498 DBUS_TYPE_STRING, argument,
2503 if (!dbus_message_iter_init(reply, &iter)) {
2504 log_error("Failed to initialize iterator.");
2508 r = bus_parse_strv_iter(&iter, &list);
2510 log_error("Failed to parse value list.");
2514 STRV_FOREACH(a, list) {
2515 if (endswith(*a, "\n"))
2525 typedef struct ExecStatusInfo {
2533 usec_t start_timestamp;
2534 usec_t exit_timestamp;
2539 LIST_FIELDS(struct ExecStatusInfo, exec);
2542 static void exec_status_info_free(ExecStatusInfo *i) {
2551 static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
2552 uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
2553 DBusMessageIter sub2, sub3;
2557 int32_t code, status;
2563 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
2566 dbus_message_iter_recurse(sub, &sub2);
2568 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
2571 i->path = strdup(path);
2575 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
2576 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
2580 dbus_message_iter_recurse(&sub2, &sub3);
2581 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
2582 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
2583 dbus_message_iter_next(&sub3);
2587 i->argv = new0(char*, n+1);
2592 dbus_message_iter_recurse(&sub2, &sub3);
2593 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
2596 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
2597 dbus_message_iter_get_basic(&sub3, &s);
2598 dbus_message_iter_next(&sub3);
2600 i->argv[n] = strdup(s);
2607 if (!dbus_message_iter_next(&sub2) ||
2608 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
2609 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
2610 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp_monotonic, true) < 0 ||
2611 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
2612 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp_monotonic, true) < 0 ||
2613 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
2614 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
2615 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
2619 i->start_timestamp = (usec_t) start_timestamp;
2620 i->exit_timestamp = (usec_t) exit_timestamp;
2621 i->pid = (pid_t) pid;
2628 typedef struct UnitStatusInfo {
2630 const char *load_state;
2631 const char *active_state;
2632 const char *sub_state;
2633 const char *unit_file_state;
2635 const char *description;
2636 const char *following;
2638 char **documentation;
2640 const char *fragment_path;
2641 const char *source_path;
2642 const char *default_control_group;
2644 char **dropin_paths;
2646 const char *load_error;
2649 usec_t inactive_exit_timestamp;
2650 usec_t inactive_exit_timestamp_monotonic;
2651 usec_t active_enter_timestamp;
2652 usec_t active_exit_timestamp;
2653 usec_t inactive_enter_timestamp;
2655 bool need_daemon_reload;
2660 const char *status_text;
2663 usec_t start_timestamp;
2664 usec_t exit_timestamp;
2666 int exit_code, exit_status;
2668 usec_t condition_timestamp;
2669 bool condition_result;
2672 unsigned n_accepted;
2673 unsigned n_connections;
2676 /* Pairs of type, path */
2680 const char *sysfs_path;
2682 /* Mount, Automount */
2688 LIST_HEAD(ExecStatusInfo, exec);
2691 static void print_status_info(UnitStatusInfo *i) {
2693 const char *on, *off, *ss;
2695 char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1;
2696 char since2[FORMAT_TIMESTAMP_MAX], *s2;
2699 arg_all * OUTPUT_SHOW_ALL |
2700 (!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
2701 on_tty() * OUTPUT_COLOR |
2702 !arg_quiet * OUTPUT_WARN_CUTOFF |
2703 arg_full * OUTPUT_FULL_WIDTH;
2708 /* This shows pretty information about a unit. See
2709 * print_property() for a low-level property printer */
2711 printf("%s", strna(i->id));
2713 if (i->description && !streq_ptr(i->id, i->description))
2714 printf(" - %s", i->description);
2719 printf(" Follow: unit currently follows state of %s\n", i->following);
2721 if (streq_ptr(i->load_state, "error")) {
2722 on = ansi_highlight_red(true);
2723 off = ansi_highlight_red(false);
2727 path = i->source_path ? i->source_path : i->fragment_path;
2730 printf(" Loaded: %s%s%s (Reason: %s)\n",
2731 on, strna(i->load_state), off, i->load_error);
2732 else if (path && i->unit_file_state)
2733 printf(" Loaded: %s%s%s (%s; %s)\n",
2734 on, strna(i->load_state), off, path, i->unit_file_state);
2736 printf(" Loaded: %s%s%s (%s)\n",
2737 on, strna(i->load_state), off, path);
2739 printf(" Loaded: %s%s%s\n",
2740 on, strna(i->load_state), off);
2742 if (!strv_isempty(i->dropin_paths)) {
2747 STRV_FOREACH(dropin, i->dropin_paths) {
2748 if (! dir || last) {
2749 printf(dir ? " " : " Drop-In: ");
2753 if (path_get_parent(*dropin, &dir) < 0) {
2758 printf("%s\n %s", dir,
2759 draw_special_char(DRAW_TREE_RIGHT));
2762 last = ! (*(dropin + 1) && startswith(*(dropin + 1), dir));
2764 printf("%s%s", path_get_file_name(*dropin), last ? "\n" : ", ");
2770 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
2772 if (streq_ptr(i->active_state, "failed")) {
2773 on = ansi_highlight_red(true);
2774 off = ansi_highlight_red(false);
2775 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
2776 on = ansi_highlight_green(true);
2777 off = ansi_highlight_green(false);
2782 printf(" Active: %s%s (%s)%s",
2783 on, strna(i->active_state), ss, off);
2785 printf(" Active: %s%s%s",
2786 on, strna(i->active_state), off);
2788 if (!isempty(i->result) && !streq(i->result, "success"))
2789 printf(" (Result: %s)", i->result);
2791 timestamp = (streq_ptr(i->active_state, "active") ||
2792 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
2793 (streq_ptr(i->active_state, "inactive") ||
2794 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
2795 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
2796 i->active_exit_timestamp;
2798 s1 = format_timestamp_relative(since1, sizeof(since1), timestamp);
2799 s2 = format_timestamp(since2, sizeof(since2), timestamp);
2802 printf(" since %s; %s\n", s2, s1);
2804 printf(" since %s\n", s2);
2808 if (!i->condition_result && i->condition_timestamp > 0) {
2809 s1 = format_timestamp_relative(since1, sizeof(since1), i->condition_timestamp);
2810 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
2813 printf(" start condition failed at %s; %s\n", s2, s1);
2815 printf(" start condition failed at %s\n", s2);
2819 printf(" Device: %s\n", i->sysfs_path);
2821 printf(" Where: %s\n", i->where);
2823 printf(" What: %s\n", i->what);
2825 STRV_FOREACH(t, i->documentation)
2826 printf(" %*s %s\n", 9, t == i->documentation ? "Docs:" : "", *t);
2828 STRV_FOREACH_PAIR(t, t2, i->listen)
2829 printf(" %*s %s (%s)\n", 9, t == i->listen ? "Listen:" : "", *t2, *t);
2832 printf(" Accepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
2834 LIST_FOREACH(exec, p, i->exec) {
2835 _cleanup_free_ char *argv = NULL;
2838 /* Only show exited processes here */
2842 argv = strv_join(p->argv, " ");
2843 printf(" Process: %u %s=%s ", p->pid, p->name, strna(argv));
2845 good = is_clean_exit_lsb(p->code, p->status, NULL);
2847 on = ansi_highlight_red(true);
2848 off = ansi_highlight_red(false);
2852 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
2854 if (p->code == CLD_EXITED) {
2857 printf("status=%i", p->status);
2859 c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD);
2864 printf("signal=%s", signal_to_string(p->status));
2866 printf(")%s\n", off);
2868 if (i->main_pid == p->pid &&
2869 i->start_timestamp == p->start_timestamp &&
2870 i->exit_timestamp == p->start_timestamp)
2871 /* Let's not show this twice */
2874 if (p->pid == i->control_pid)
2878 if (i->main_pid > 0 || i->control_pid > 0) {
2879 if (i->main_pid > 0) {
2880 printf(" Main PID: %u", (unsigned) i->main_pid);
2883 _cleanup_free_ char *comm = NULL;
2884 get_process_comm(i->main_pid, &comm);
2886 printf(" (%s)", comm);
2887 } else if (i->exit_code > 0) {
2888 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
2890 if (i->exit_code == CLD_EXITED) {
2893 printf("status=%i", i->exit_status);
2895 c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD);
2900 printf("signal=%s", signal_to_string(i->exit_status));
2904 if (i->control_pid > 0)
2908 if (i->control_pid > 0) {
2909 _cleanup_free_ char *c = NULL;
2911 printf(" %8s: %u", i->main_pid ? "" : " Control", (unsigned) i->control_pid);
2913 get_process_comm(i->control_pid, &c);
2922 printf(" Status: \"%s\"\n", i->status_text);
2924 if (i->default_control_group &&
2925 (i->main_pid > 0 || i->control_pid > 0 || cg_is_empty_by_spec(i->default_control_group, false) == 0)) {
2928 printf(" CGroup: %s\n", i->default_control_group);
2930 if (arg_transport != TRANSPORT_SSH) {
2933 char prefix[] = " ";
2936 if (c > sizeof(prefix) - 1)
2937 c -= sizeof(prefix) - 1;
2941 if (i->main_pid > 0)
2942 extra[k++] = i->main_pid;
2944 if (i->control_pid > 0)
2945 extra[k++] = i->control_pid;
2947 show_cgroup_and_extra_by_spec(i->default_control_group, prefix,
2948 c, false, extra, k, flags);
2952 if (i->id && arg_transport != TRANSPORT_SSH) {
2954 show_journal_by_unit(stdout,
2958 i->inactive_exit_timestamp_monotonic,
2962 arg_scope == UNIT_FILE_SYSTEM);
2965 if (i->need_daemon_reload)
2966 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %sdaemon-reload' recommended.\n",
2967 ansi_highlight_red(true),
2968 ansi_highlight_red(false),
2969 arg_scope == UNIT_FILE_SYSTEM ? "" : "--user ");
2972 static void show_unit_help(UnitStatusInfo *i) {
2977 if (!i->documentation) {
2978 log_info("Documentation for %s not known.", i->id);
2982 STRV_FOREACH(p, i->documentation) {
2984 if (startswith(*p, "man:")) {
2987 _cleanup_free_ char *page = NULL, *section = NULL;
2988 const char *args[4] = { "man", NULL, NULL, NULL };
2993 if ((*p)[k-1] == ')')
2994 e = strrchr(*p, '(');
2997 page = strndup((*p) + 4, e - *p - 4);
2998 section = strndup(e + 1, *p + k - e - 2);
2999 if (!page || !section) {
3011 log_error("Failed to fork: %m");
3017 execvp(args[0], (char**) args);
3018 log_error("Failed to execute man: %m");
3019 _exit(EXIT_FAILURE);
3022 wait_for_terminate(pid, NULL);
3024 log_info("Can't show: %s", *p);
3028 static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
3034 switch (dbus_message_iter_get_arg_type(iter)) {
3036 case DBUS_TYPE_STRING: {
3039 dbus_message_iter_get_basic(iter, &s);
3042 if (streq(name, "Id"))
3044 else if (streq(name, "LoadState"))
3046 else if (streq(name, "ActiveState"))
3047 i->active_state = s;
3048 else if (streq(name, "SubState"))
3050 else if (streq(name, "Description"))
3052 else if (streq(name, "FragmentPath"))
3053 i->fragment_path = s;
3054 else if (streq(name, "SourcePath"))
3056 else if (streq(name, "DefaultControlGroup"))
3057 i->default_control_group = s;
3058 else if (streq(name, "StatusText"))
3060 else if (streq(name, "SysFSPath"))
3062 else if (streq(name, "Where"))
3064 else if (streq(name, "What"))
3066 else if (streq(name, "Following"))
3068 else if (streq(name, "UnitFileState"))
3069 i->unit_file_state = s;
3070 else if (streq(name, "Result"))
3077 case DBUS_TYPE_BOOLEAN: {
3080 dbus_message_iter_get_basic(iter, &b);
3082 if (streq(name, "Accept"))
3084 else if (streq(name, "NeedDaemonReload"))
3085 i->need_daemon_reload = b;
3086 else if (streq(name, "ConditionResult"))
3087 i->condition_result = b;
3092 case DBUS_TYPE_UINT32: {
3095 dbus_message_iter_get_basic(iter, &u);
3097 if (streq(name, "MainPID")) {
3099 i->main_pid = (pid_t) u;
3102 } else if (streq(name, "ControlPID"))
3103 i->control_pid = (pid_t) u;
3104 else if (streq(name, "ExecMainPID")) {
3106 i->main_pid = (pid_t) u;
3107 } else if (streq(name, "NAccepted"))
3109 else if (streq(name, "NConnections"))
3110 i->n_connections = u;
3115 case DBUS_TYPE_INT32: {
3118 dbus_message_iter_get_basic(iter, &j);
3120 if (streq(name, "ExecMainCode"))
3121 i->exit_code = (int) j;
3122 else if (streq(name, "ExecMainStatus"))
3123 i->exit_status = (int) j;
3128 case DBUS_TYPE_UINT64: {
3131 dbus_message_iter_get_basic(iter, &u);
3133 if (streq(name, "ExecMainStartTimestamp"))
3134 i->start_timestamp = (usec_t) u;
3135 else if (streq(name, "ExecMainExitTimestamp"))
3136 i->exit_timestamp = (usec_t) u;
3137 else if (streq(name, "ActiveEnterTimestamp"))
3138 i->active_enter_timestamp = (usec_t) u;
3139 else if (streq(name, "InactiveEnterTimestamp"))
3140 i->inactive_enter_timestamp = (usec_t) u;
3141 else if (streq(name, "InactiveExitTimestamp"))
3142 i->inactive_exit_timestamp = (usec_t) u;
3143 else if (streq(name, "InactiveExitTimestampMonotonic"))
3144 i->inactive_exit_timestamp_monotonic = (usec_t) u;
3145 else if (streq(name, "ActiveExitTimestamp"))
3146 i->active_exit_timestamp = (usec_t) u;
3147 else if (streq(name, "ConditionTimestamp"))
3148 i->condition_timestamp = (usec_t) u;
3153 case DBUS_TYPE_ARRAY: {
3155 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
3156 startswith(name, "Exec")) {
3157 DBusMessageIter sub;
3159 dbus_message_iter_recurse(iter, &sub);
3160 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3161 ExecStatusInfo *info;
3164 if (!(info = new0(ExecStatusInfo, 1)))
3167 if (!(info->name = strdup(name))) {
3172 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
3177 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
3179 dbus_message_iter_next(&sub);
3182 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Listen")) {
3183 DBusMessageIter sub, sub2;
3185 dbus_message_iter_recurse(iter, &sub);
3186 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3187 const char *type, *path;
3189 dbus_message_iter_recurse(&sub, &sub2);
3191 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
3192 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0) {
3195 r = strv_extend(&i->listen, type);
3198 r = strv_extend(&i->listen, path);
3203 dbus_message_iter_next(&sub);
3208 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING && streq(name, "DropInPaths")) {
3209 int r = bus_parse_strv_iter(iter, &i->dropin_paths);
3213 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING &&
3214 streq(name, "Documentation")) {
3216 DBusMessageIter sub;
3218 dbus_message_iter_recurse(iter, &sub);
3219 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING) {
3223 dbus_message_iter_get_basic(&sub, &s);
3225 r = strv_extend(&i->documentation, s);
3229 dbus_message_iter_next(&sub);
3236 case DBUS_TYPE_STRUCT: {
3238 if (streq(name, "LoadError")) {
3239 DBusMessageIter sub;
3240 const char *n, *message;
3243 dbus_message_iter_recurse(iter, &sub);
3245 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &n, true);
3249 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &message, false);
3253 if (!isempty(message))
3254 i->load_error = message;
3264 static int print_property(const char *name, DBusMessageIter *iter) {
3268 /* This is a low-level property printer, see
3269 * print_status_info() for the nicer output */
3271 if (arg_properties && !strv_find(arg_properties, name))
3274 switch (dbus_message_iter_get_arg_type(iter)) {
3276 case DBUS_TYPE_STRUCT: {
3277 DBusMessageIter sub;
3278 dbus_message_iter_recurse(iter, &sub);
3280 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
3283 dbus_message_iter_get_basic(&sub, &u);
3286 printf("%s=%u\n", name, (unsigned) u);
3288 printf("%s=\n", name);
3291 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
3294 dbus_message_iter_get_basic(&sub, &s);
3296 if (arg_all || s[0])
3297 printf("%s=%s\n", name, s);
3300 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "LoadError")) {
3301 const char *a = NULL, *b = NULL;
3303 if (bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &a, true) >= 0)
3304 bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &b, false);
3306 if (arg_all || !isempty(a) || !isempty(b))
3307 printf("%s=%s \"%s\"\n", name, strempty(a), strempty(b));
3315 case DBUS_TYPE_ARRAY:
3317 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "EnvironmentFiles")) {
3318 DBusMessageIter sub, sub2;
3320 dbus_message_iter_recurse(iter, &sub);
3321 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3325 dbus_message_iter_recurse(&sub, &sub2);
3327 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) >= 0 &&
3328 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, false) >= 0)
3329 printf("EnvironmentFile=%s (ignore_errors=%s)\n", path, yes_no(ignore));
3331 dbus_message_iter_next(&sub);
3336 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
3337 DBusMessageIter sub, sub2;
3339 dbus_message_iter_recurse(iter, &sub);
3341 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3342 const char *type, *path;
3344 dbus_message_iter_recurse(&sub, &sub2);
3346 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
3347 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
3348 printf("%s=%s\n", type, path);
3350 dbus_message_iter_next(&sub);
3355 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Listen")) {
3356 DBusMessageIter sub, sub2;
3358 dbus_message_iter_recurse(iter, &sub);
3359 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3360 const char *type, *path;
3362 dbus_message_iter_recurse(&sub, &sub2);
3364 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
3365 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
3366 printf("Listen%s=%s\n", type, path);
3368 dbus_message_iter_next(&sub);
3373 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
3374 DBusMessageIter sub, sub2;
3376 dbus_message_iter_recurse(iter, &sub);
3377 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3379 uint64_t value, next_elapse;
3381 dbus_message_iter_recurse(&sub, &sub2);
3383 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
3384 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
3385 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
3386 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
3388 printf("%s={ value=%s ; next_elapse=%s }\n",
3390 format_timespan(timespan1, sizeof(timespan1), value, 0),
3391 format_timespan(timespan2, sizeof(timespan2), next_elapse, 0));
3394 dbus_message_iter_next(&sub);
3399 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "ControlGroupAttributes")) {
3400 DBusMessageIter sub, sub2;
3402 dbus_message_iter_recurse(iter, &sub);
3403 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3404 const char *controller, *attr, *value;
3406 dbus_message_iter_recurse(&sub, &sub2);
3408 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &controller, true) >= 0 &&
3409 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &attr, true) >= 0 &&
3410 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &value, false) >= 0) {
3412 printf("ControlGroupAttributes={ controller=%s ; attribute=%s ; value=\"%s\" }\n",
3418 dbus_message_iter_next(&sub);
3423 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
3424 DBusMessageIter sub;
3426 dbus_message_iter_recurse(iter, &sub);
3427 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3428 ExecStatusInfo info = {};
3430 if (exec_status_info_deserialize(&sub, &info) >= 0) {
3431 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
3432 _cleanup_free_ char *t;
3434 t = strv_join(info.argv, " ");
3436 printf("%s={ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
3440 yes_no(info.ignore),
3441 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
3442 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
3443 (unsigned) info. pid,
3444 sigchld_code_to_string(info.code),
3446 info.code == CLD_EXITED ? "" : "/",
3447 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
3451 strv_free(info.argv);
3453 dbus_message_iter_next(&sub);
3462 if (generic_print_property(name, iter, arg_all) > 0)
3466 printf("%s=[unprintable]\n", name);
3471 static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
3472 _cleanup_free_ DBusMessage *reply = NULL;
3473 const char *interface = "";
3475 DBusMessageIter iter, sub, sub2, sub3;
3476 UnitStatusInfo info = {};
3482 r = bus_method_call_with_reply(
3484 "org.freedesktop.systemd1",
3486 "org.freedesktop.DBus.Properties",
3490 DBUS_TYPE_STRING, &interface,
3495 if (!dbus_message_iter_init(reply, &iter) ||
3496 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
3497 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
3498 log_error("Failed to parse reply.");
3502 dbus_message_iter_recurse(&iter, &sub);
3509 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
3512 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_DICT_ENTRY);
3513 dbus_message_iter_recurse(&sub, &sub2);
3515 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
3516 dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
3517 log_error("Failed to parse reply.");
3521 dbus_message_iter_recurse(&sub2, &sub3);
3523 if (show_properties)
3524 r = print_property(name, &sub3);
3526 r = status_property(name, &sub3, &info);
3528 log_error("Failed to parse reply.");
3532 dbus_message_iter_next(&sub);
3537 if (!show_properties) {
3538 if (streq(verb, "help"))
3539 show_unit_help(&info);
3541 print_status_info(&info);
3544 strv_free(info.documentation);
3545 strv_free(info.dropin_paths);
3546 strv_free(info.listen);
3548 if (!streq_ptr(info.active_state, "active") &&
3549 !streq_ptr(info.active_state, "reloading") &&
3550 streq(verb, "status"))
3551 /* According to LSB: "program not running" */
3554 while ((p = info.exec)) {
3555 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
3556 exec_status_info_free(p);
3562 static int show_one_by_pid(const char *verb, DBusConnection *bus, uint32_t pid, bool *new_line) {
3563 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
3564 const char *path = NULL;
3565 _cleanup_dbus_error_free_ DBusError error;
3568 dbus_error_init(&error);
3570 r = bus_method_call_with_reply(
3572 "org.freedesktop.systemd1",
3573 "/org/freedesktop/systemd1",
3574 "org.freedesktop.systemd1.Manager",
3578 DBUS_TYPE_UINT32, &pid,
3583 if (!dbus_message_get_args(reply, &error,
3584 DBUS_TYPE_OBJECT_PATH, &path,
3585 DBUS_TYPE_INVALID)) {
3586 log_error("Failed to parse reply: %s", bus_error_message(&error));
3590 r = show_one(verb, bus, path, false, new_line);
3594 static int show_all(const char* verb, DBusConnection *bus, bool show_properties, bool *new_line) {
3595 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
3596 _cleanup_free_ struct unit_info *unit_infos = NULL;
3598 const struct unit_info *u;
3601 r = get_unit_list(bus, &reply, &unit_infos, &c);
3605 qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info);
3607 for (u = unit_infos; u < unit_infos + c; u++) {
3608 _cleanup_free_ char *p = NULL;
3610 if (!output_show_unit(u))
3613 p = unit_dbus_path_from_name(u->id);
3617 printf("%s -> '%s'\n", u->id, p);
3619 r = show_one(verb, bus, p, show_properties, new_line);
3627 static int show(DBusConnection *bus, char **args) {
3629 bool show_properties, show_status, new_line = false;
3635 show_properties = streq(args[0], "show");
3636 show_status = streq(args[0], "status");
3638 if (show_properties)
3639 pager_open_if_enabled();
3641 /* If no argument is specified inspect the manager itself */
3643 if (show_properties && strv_length(args) <= 1)
3644 return show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line);
3646 if (show_status && strv_length(args) <= 1)
3647 return show_all(args[0], bus, false, &new_line);
3649 STRV_FOREACH(name, args+1) {
3652 if (safe_atou32(*name, &id) < 0) {
3653 _cleanup_free_ char *p = NULL, *n = NULL;
3654 /* Interpret as unit name */
3656 n = unit_name_mangle(*name);
3660 p = unit_dbus_path_from_name(n);
3664 r = show_one(args[0], bus, p, show_properties, &new_line);
3668 } else if (show_properties) {
3669 _cleanup_free_ char *p = NULL;
3671 /* Interpret as job id */
3672 if (asprintf(&p, "/org/freedesktop/systemd1/job/%u", id) < 0)
3675 r = show_one(args[0], bus, p, show_properties, &new_line);
3680 /* Interpret as PID */
3681 r = show_one_by_pid(args[0], bus, id, &new_line);
3690 static int dump(DBusConnection *bus, char **args) {
3691 _cleanup_free_ DBusMessage *reply = NULL;
3696 dbus_error_init(&error);
3698 pager_open_if_enabled();
3700 r = bus_method_call_with_reply(
3702 "org.freedesktop.systemd1",
3703 "/org/freedesktop/systemd1",
3704 "org.freedesktop.systemd1.Manager",
3712 if (!dbus_message_get_args(reply, &error,
3713 DBUS_TYPE_STRING, &text,
3714 DBUS_TYPE_INVALID)) {
3715 log_error("Failed to parse reply: %s", bus_error_message(&error));
3716 dbus_error_free(&error);
3720 fputs(text, stdout);
3724 static int snapshot(DBusConnection *bus, char **args) {
3725 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
3728 dbus_bool_t cleanup = FALSE;
3729 DBusMessageIter iter, sub;
3732 *interface = "org.freedesktop.systemd1.Unit",
3734 _cleanup_free_ char *n = NULL;
3736 dbus_error_init(&error);
3738 if (strv_length(args) > 1)
3739 n = snapshot_name_mangle(args[1]);
3745 r = bus_method_call_with_reply (
3747 "org.freedesktop.systemd1",
3748 "/org/freedesktop/systemd1",
3749 "org.freedesktop.systemd1.Manager",
3753 DBUS_TYPE_STRING, &n,
3754 DBUS_TYPE_BOOLEAN, &cleanup,
3759 if (!dbus_message_get_args(reply, &error,
3760 DBUS_TYPE_OBJECT_PATH, &path,
3761 DBUS_TYPE_INVALID)) {
3762 log_error("Failed to parse reply: %s", bus_error_message(&error));
3763 dbus_error_free(&error);
3767 dbus_message_unref(reply);
3770 r = bus_method_call_with_reply (
3772 "org.freedesktop.systemd1",
3774 "org.freedesktop.DBus.Properties",
3778 DBUS_TYPE_STRING, &interface,
3779 DBUS_TYPE_STRING, &property,
3784 if (!dbus_message_iter_init(reply, &iter) ||
3785 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3786 log_error("Failed to parse reply.");
3790 dbus_message_iter_recurse(&iter, &sub);
3792 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
3793 log_error("Failed to parse reply.");
3797 dbus_message_iter_get_basic(&sub, &id);
3805 static int delete_snapshot(DBusConnection *bus, char **args) {
3810 STRV_FOREACH(name, args+1) {
3811 _cleanup_free_ char *n = NULL;
3814 n = snapshot_name_mangle(*name);
3818 r = bus_method_call_with_reply(
3820 "org.freedesktop.systemd1",
3821 "/org/freedesktop/systemd1",
3822 "org.freedesktop.systemd1.Manager",
3826 DBUS_TYPE_STRING, &n,
3835 static int daemon_reload(DBusConnection *bus, char **args) {
3840 if (arg_action == ACTION_RELOAD)
3842 else if (arg_action == ACTION_REEXEC)
3843 method = "Reexecute";
3845 assert(arg_action == ACTION_SYSTEMCTL);
3848 streq(args[0], "clear-jobs") ||
3849 streq(args[0], "cancel") ? "ClearJobs" :
3850 streq(args[0], "daemon-reexec") ? "Reexecute" :
3851 streq(args[0], "reset-failed") ? "ResetFailed" :
3852 streq(args[0], "halt") ? "Halt" :
3853 streq(args[0], "poweroff") ? "PowerOff" :
3854 streq(args[0], "reboot") ? "Reboot" :
3855 streq(args[0], "kexec") ? "KExec" :
3856 streq(args[0], "exit") ? "Exit" :
3857 /* "daemon-reload" */ "Reload";
3860 r = bus_method_call_with_reply(
3862 "org.freedesktop.systemd1",
3863 "/org/freedesktop/systemd1",
3864 "org.freedesktop.systemd1.Manager",
3870 if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
3871 /* There's always a fallback possible for
3872 * legacy actions. */
3874 else if (r == -ETIMEDOUT && streq(method, "Reexecute"))
3875 /* On reexecution, we expect a disconnect, not
3879 log_error("Failed to issue method call: %s", bus_error_message(&error));
3881 dbus_error_free(&error);
3885 static int reset_failed(DBusConnection *bus, char **args) {
3889 if (strv_length(args) <= 1)
3890 return daemon_reload(bus, args);
3892 STRV_FOREACH(name, args+1) {
3893 _cleanup_free_ char *n;
3895 n = unit_name_mangle(*name);
3899 r = bus_method_call_with_reply(
3901 "org.freedesktop.systemd1",
3902 "/org/freedesktop/systemd1",
3903 "org.freedesktop.systemd1.Manager",
3907 DBUS_TYPE_STRING, &n,
3916 static int show_enviroment(DBusConnection *bus, char **args) {
3917 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
3918 DBusMessageIter iter, sub, sub2;
3921 *interface = "org.freedesktop.systemd1.Manager",
3922 *property = "Environment";
3924 pager_open_if_enabled();
3926 r = bus_method_call_with_reply(
3928 "org.freedesktop.systemd1",
3929 "/org/freedesktop/systemd1",
3930 "org.freedesktop.DBus.Properties",
3934 DBUS_TYPE_STRING, &interface,
3935 DBUS_TYPE_STRING, &property,
3940 if (!dbus_message_iter_init(reply, &iter) ||
3941 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3942 log_error("Failed to parse reply.");
3946 dbus_message_iter_recurse(&iter, &sub);
3948 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3949 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3950 log_error("Failed to parse reply.");
3954 dbus_message_iter_recurse(&sub, &sub2);
3956 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3959 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3960 log_error("Failed to parse reply.");
3964 dbus_message_iter_get_basic(&sub2, &text);
3967 dbus_message_iter_next(&sub2);
3973 static int switch_root(DBusConnection *bus, char **args) {
3976 _cleanup_free_ char *init = NULL;
3978 l = strv_length(args);
3979 if (l < 2 || l > 3) {
3980 log_error("Wrong number of arguments.");
3987 init = strdup(args[2]);
3989 parse_env_file("/proc/cmdline", WHITESPACE,
3999 log_debug("switching root - root: %s; init: %s", root, init);
4001 return bus_method_call_with_reply(
4003 "org.freedesktop.systemd1",
4004 "/org/freedesktop/systemd1",
4005 "org.freedesktop.systemd1.Manager",
4009 DBUS_TYPE_STRING, &root,
4010 DBUS_TYPE_STRING, &init,
4014 static int set_environment(DBusConnection *bus, char **args) {
4015 _cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
4018 DBusMessageIter iter;
4024 dbus_error_init(&error);
4026 method = streq(args[0], "set-environment")
4028 : "UnsetEnvironment";
4030 m = dbus_message_new_method_call(
4031 "org.freedesktop.systemd1",
4032 "/org/freedesktop/systemd1",
4033 "org.freedesktop.systemd1.Manager",
4038 dbus_message_iter_init_append(m, &iter);
4040 r = bus_append_strv_iter(&iter, args + 1);
4044 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
4046 log_error("Failed to issue method call: %s", bus_error_message(&error));
4047 dbus_error_free(&error);
4054 static int enable_sysv_units(char **args) {
4057 #if defined(HAVE_SYSV_COMPAT) && defined(HAVE_CHKCONFIG)
4058 const char *verb = args[0];
4059 unsigned f = 1, t = 1;
4060 LookupPaths paths = {};
4062 if (arg_scope != UNIT_FILE_SYSTEM)
4065 if (!streq(verb, "enable") &&
4066 !streq(verb, "disable") &&
4067 !streq(verb, "is-enabled"))
4070 /* Processes all SysV units, and reshuffles the array so that
4071 * afterwards only the native units remain */
4073 r = lookup_paths_init(&paths, SYSTEMD_SYSTEM, false, NULL, NULL, NULL);
4078 for (f = 1; args[f]; f++) {
4080 _cleanup_free_ char *p = NULL, *q = NULL;
4081 bool found_native = false, found_sysv;
4083 const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL };
4091 if (!endswith(name, ".service"))
4094 if (path_is_absolute(name))
4097 STRV_FOREACH(k, paths.unit_path) {
4098 if (!isempty(arg_root))
4099 asprintf(&p, "%s/%s/%s", arg_root, *k, name);
4101 asprintf(&p, "%s/%s", *k, name);
4108 found_native = access(p, F_OK) >= 0;
4119 if (!isempty(arg_root))
4120 asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name);
4122 asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name);
4128 p[strlen(p) - sizeof(".service") + 1] = 0;
4129 found_sysv = access(p, F_OK) >= 0;
4134 /* Mark this entry, so that we don't try enabling it as native unit */
4135 args[f] = (char*) "";
4137 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name);
4139 if (!isempty(arg_root))
4140 argv[c++] = q = strappend("--root=", arg_root);
4142 argv[c++] = path_get_file_name(p);
4144 streq(verb, "enable") ? "on" :
4145 streq(verb, "disable") ? "off" : "--level=5";
4148 l = strv_join((char**)argv, " ");
4154 log_info("Executing %s", l);
4159 log_error("Failed to fork: %m");
4162 } else if (pid == 0) {
4165 execv(argv[0], (char**) argv);
4166 _exit(EXIT_FAILURE);
4169 j = wait_for_terminate(pid, &status);
4171 log_error("Failed to wait for child: %s", strerror(-r));
4176 if (status.si_code == CLD_EXITED) {
4177 if (streq(verb, "is-enabled")) {
4178 if (status.si_status == 0) {
4187 } else if (status.si_status != 0) {
4198 lookup_paths_free(&paths);
4200 /* Drop all SysV units */
4201 for (f = 1, t = 1; args[f]; f++) {
4203 if (isempty(args[f]))
4206 args[t++] = args[f];
4215 static int mangle_names(char **original_names, char ***mangled_names) {
4216 char **i, **l, **name;
4218 l = new(char*, strv_length(original_names) + 1);
4223 STRV_FOREACH(name, original_names) {
4225 /* When enabling units qualified path names are OK,
4226 * too, hence allow them explicitly. */
4231 *i = unit_name_mangle(*name);
4247 static int enable_unit(DBusConnection *bus, char **args) {
4248 const char *verb = args[0];
4249 UnitFileChange *changes = NULL;
4250 unsigned n_changes = 0, i;
4251 int carries_install_info = -1;
4252 _cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
4254 _cleanup_dbus_error_free_ DBusError error;
4255 _cleanup_strv_free_ char **mangled_names = NULL;
4257 dbus_error_init(&error);
4259 r = enable_sysv_units(args);
4266 r = mangle_names(args+1, &mangled_names);
4270 if (!bus || avoid_bus()) {
4271 if (streq(verb, "enable")) {
4272 r = unit_file_enable(arg_scope, arg_runtime, arg_root, mangled_names, arg_force, &changes, &n_changes);
4273 carries_install_info = r;
4274 } else if (streq(verb, "disable"))
4275 r = unit_file_disable(arg_scope, arg_runtime, arg_root, mangled_names, &changes, &n_changes);
4276 else if (streq(verb, "reenable")) {
4277 r = unit_file_reenable(arg_scope, arg_runtime, arg_root, mangled_names, arg_force, &changes, &n_changes);
4278 carries_install_info = r;
4279 } else if (streq(verb, "link"))
4280 r = unit_file_link(arg_scope, arg_runtime, arg_root, mangled_names, arg_force, &changes, &n_changes);
4281 else if (streq(verb, "preset")) {
4282 r = unit_file_preset(arg_scope, arg_runtime, arg_root, mangled_names, arg_force, &changes, &n_changes);
4283 carries_install_info = r;
4284 } else if (streq(verb, "mask"))
4285 r = unit_file_mask(arg_scope, arg_runtime, arg_root, mangled_names, arg_force, &changes, &n_changes);
4286 else if (streq(verb, "unmask"))
4287 r = unit_file_unmask(arg_scope, arg_runtime, arg_root, mangled_names, &changes, &n_changes);
4288 else if (streq(verb, "set-default"))
4289 r = unit_file_set_default(arg_scope, arg_root, args[1], &changes, &n_changes);
4291 assert_not_reached("Unknown verb");
4294 log_error("Operation failed: %s", strerror(-r));
4299 for (i = 0; i < n_changes; i++) {
4300 if (changes[i].type == UNIT_FILE_SYMLINK)
4301 log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path);
4303 log_info("rm '%s'", changes[i].path);
4310 bool send_force = true, expect_carries_install_info = false;
4312 DBusMessageIter iter, sub, sub2;
4314 if (streq(verb, "enable")) {
4315 method = "EnableUnitFiles";
4316 expect_carries_install_info = true;
4317 } else if (streq(verb, "disable")) {
4318 method = "DisableUnitFiles";
4320 } else if (streq(verb, "reenable")) {
4321 method = "ReenableUnitFiles";
4322 expect_carries_install_info = true;
4323 } else if (streq(verb, "link"))
4324 method = "LinkUnitFiles";
4325 else if (streq(verb, "preset")) {
4326 method = "PresetUnitFiles";
4327 expect_carries_install_info = true;
4328 } else if (streq(verb, "mask"))
4329 method = "MaskUnitFiles";
4330 else if (streq(verb, "unmask")) {
4331 method = "UnmaskUnitFiles";
4333 } else if (streq(verb, "set-default")) {
4334 method = "SetDefaultTarget";
4336 assert_not_reached("Unknown verb");
4338 m = dbus_message_new_method_call(
4339 "org.freedesktop.systemd1",
4340 "/org/freedesktop/systemd1",
4341 "org.freedesktop.systemd1.Manager",
4348 dbus_message_iter_init_append(m, &iter);
4350 r = bus_append_strv_iter(&iter, mangled_names);
4352 log_error("Failed to append unit files.");
4357 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &a)) {
4358 log_error("Failed to append runtime boolean.");
4366 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b)) {
4367 log_error("Failed to append force boolean.");
4373 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
4375 log_error("Failed to issue method call: %s", bus_error_message(&error));
4380 if (!dbus_message_iter_init(reply, &iter)) {
4381 log_error("Failed to initialize iterator.");
4385 if (expect_carries_install_info) {
4386 r = bus_iter_get_basic_and_next(&iter, DBUS_TYPE_BOOLEAN, &b, true);
4388 log_error("Failed to parse reply.");
4392 carries_install_info = b;
4395 if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
4396 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
4397 log_error("Failed to parse reply.");
4402 dbus_message_iter_recurse(&iter, &sub);
4403 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
4404 const char *type, *path, *source;
4406 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
4407 log_error("Failed to parse reply.");
4412 dbus_message_iter_recurse(&sub, &sub2);
4414 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
4415 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0 ||
4416 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &source, false) < 0) {
4417 log_error("Failed to parse reply.");
4423 if (streq(type, "symlink"))
4424 log_info("ln -s '%s' '%s'", source, path);
4426 log_info("rm '%s'", path);
4429 dbus_message_iter_next(&sub);
4432 /* Try to reload if enabeld */
4434 r = daemon_reload(bus, args);
4437 if (carries_install_info == 0)
4438 log_warning("The unit files have no [Install] section. They are not meant to be enabled\n"
4439 "using systemctl.\n"
4440 "Possible reasons for having this kind of units are:\n"
4441 "1) A unit may be statically enabled by being symlinked from another unit's\n"
4442 " .wants/ or .requires/ directory.\n"
4443 "2) A unit's purpose may be to act as a helper for some other unit which has\n"
4444 " a requirement dependency on it.\n"
4445 "3) A unit may be started when needed via activation (socket, path, timer,\n"
4446 " D-Bus, udev, scripted systemctl call, ...).\n");
4449 unit_file_changes_free(changes, n_changes);
4454 static int set_log_level(DBusConnection *bus, char **args) {
4455 _cleanup_dbus_error_free_ DBusError error;
4456 _cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
4457 DBusMessageIter iter, sub;
4458 const char* property = "LogLevel";
4459 const char* interface = "org.freedesktop.systemd1.Manager";
4466 dbus_error_init(&error);
4468 m = dbus_message_new_method_call("org.freedesktop.systemd1",
4469 "/org/freedesktop/systemd1",
4470 "org.freedesktop.DBus.Properties",
4475 dbus_message_iter_init_append(m, &iter);
4477 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &interface) ||
4478 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &property) ||
4479 !dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT, "s", &sub))
4482 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &value)) {
4483 dbus_message_iter_abandon_container(&iter, &sub);
4487 if (!dbus_message_iter_close_container(&iter, &sub))
4490 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
4492 log_error("Failed to issue method call: %s", bus_error_message(&error));
4499 static int unit_is_enabled(DBusConnection *bus, char **args) {
4500 _cleanup_dbus_error_free_ DBusError error;
4502 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
4507 dbus_error_init(&error);
4509 r = enable_sysv_units(args);
4515 if (!bus || avoid_bus()) {
4517 STRV_FOREACH(name, args+1) {
4518 UnitFileState state;
4520 n = unit_name_mangle(*name);
4524 state = unit_file_get_state(arg_scope, arg_root, n);
4531 if (state == UNIT_FILE_ENABLED ||
4532 state == UNIT_FILE_ENABLED_RUNTIME ||
4533 state == UNIT_FILE_STATIC)
4537 puts(unit_file_state_to_string(state));
4541 STRV_FOREACH(name, args+1) {
4544 n = unit_name_mangle(*name);
4548 r = bus_method_call_with_reply (
4550 "org.freedesktop.systemd1",
4551 "/org/freedesktop/systemd1",
4552 "org.freedesktop.systemd1.Manager",
4556 DBUS_TYPE_STRING, &n,
4564 if (!dbus_message_get_args(reply, &error,
4565 DBUS_TYPE_STRING, &s,
4566 DBUS_TYPE_INVALID)) {
4567 log_error("Failed to parse reply: %s", bus_error_message(&error));
4571 dbus_message_unref(reply);
4574 if (streq(s, "enabled") ||
4575 streq(s, "enabled-runtime") ||
4584 return enabled ? 0 : 1;
4587 static int systemctl_help(void) {
4589 pager_open_if_enabled();
4591 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
4592 "Query or send control commands to the systemd manager.\n\n"
4593 " -h --help Show this help\n"
4594 " --version Show package version\n"
4595 " -t --type=TYPE List only units of a particular type\n"
4596 " -p --property=NAME Show only properties by this name\n"
4597 " -a --all Show all loaded units/properties, including dead/empty\n"
4598 " ones. To list all units installed on the system, use\n"
4599 " the 'list-unit-files' command instead.\n"
4600 " --reverse Show reverse dependencies with 'list-dependencies'\n"
4601 " --failed Show only failed units\n"
4602 " -l --full Don't ellipsize unit names on output\n"
4603 " --fail When queueing a new job, fail if conflicting jobs are\n"
4605 " --irreversible Create jobs which cannot be implicitly cancelled\n"
4606 " --show-types When showing sockets, explicitly show their type\n"
4607 " --ignore-dependencies\n"
4608 " When queueing a new job, ignore all its dependencies\n"
4609 " -i --ignore-inhibitors\n"
4610 " When shutting down or sleeping, ignore inhibitors\n"
4611 " --kill-who=WHO Who to send signal to\n"
4612 " -s --signal=SIGNAL Which signal to send\n"
4613 " -H --host=[USER@]HOST\n"
4614 " Show information for remote host\n"
4615 " -P --privileged Acquire privileges before execution\n"
4616 " -q --quiet Suppress output\n"
4617 " --no-block Do not wait until operation finished\n"
4618 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4619 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
4621 " --no-legend Do not print a legend (column headers and hints)\n"
4622 " --no-pager Do not pipe output into a pager\n"
4623 " --no-ask-password\n"
4624 " Do not ask for system passwords\n"
4625 " --system Connect to system manager\n"
4626 " --user Connect to user service manager\n"
4627 " --global Enable/disable unit files globally\n"
4628 " -f --force When enabling unit files, override existing symlinks\n"
4629 " When shutting down, execute action immediately\n"
4630 " --root=PATH Enable unit files in the specified root directory\n"
4631 " --runtime Enable unit files only temporarily until next reboot\n"
4632 " -n --lines=INTEGER Journal entries to show\n"
4633 " -o --output=STRING Change journal output mode (short, short-monotonic,\n"
4634 " verbose, export, json, json-pretty, json-sse, cat)\n\n"
4636 " list-units List loaded units\n"
4637 " list-sockets List loaded sockets ordered by address\n"
4638 " start [NAME...] Start (activate) one or more units\n"
4639 " stop [NAME...] Stop (deactivate) one or more units\n"
4640 " reload [NAME...] Reload one or more units\n"
4641 " restart [NAME...] Start or restart one or more units\n"
4642 " try-restart [NAME...] Restart one or more units if active\n"
4643 " reload-or-restart [NAME...] Reload one or more units if possible,\n"
4644 " otherwise start or restart\n"
4645 " reload-or-try-restart [NAME...] Reload one or more units if possible,\n"
4646 " otherwise restart if active\n"
4647 " isolate [NAME] Start one unit and stop all others\n"
4648 " kill [NAME...] Send signal to processes of a unit\n"
4649 " is-active [NAME...] Check whether units are active\n"
4650 " is-failed [NAME...] Check whether units are failed\n"
4651 " status [NAME...|PID...] Show runtime status of one or more units\n"
4652 " show [NAME...|JOB...] Show properties of one or more\n"
4653 " units/jobs or the manager\n"
4654 " help [NAME...|PID...] Show manual for one or more units\n"
4655 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4657 " get-cgroup-attr [NAME] [ATTR] ...\n"
4658 " Get control group attrubute\n"
4659 " set-cgroup-attr [NAME] [ATTR] [VALUE] ...\n"
4660 " Set control group attribute\n"
4661 " unset-cgroup-attr [NAME] [ATTR...]\n"
4662 " Unset control group attribute\n"
4663 " set-cgroup [NAME] [CGROUP...] Add unit to a control group\n"
4664 " unset-cgroup [NAME] [CGROUP...] Remove unit from a control group\n"
4665 " load [NAME...] Load one or more units\n"
4666 " list-dependencies [NAME] Recursively show units which are required\n"
4667 " or wanted by this unit or by which this\n"
4668 " unit is required or wanted\n\n"
4669 "Unit File Commands:\n"
4670 " list-unit-files List installed unit files\n"
4671 " enable [NAME...] Enable one or more unit files\n"
4672 " disable [NAME...] Disable one or more unit files\n"
4673 " reenable [NAME...] Reenable one or more unit files\n"
4674 " preset [NAME...] Enable/disable one or more unit files\n"
4675 " based on preset configuration\n"
4676 " mask [NAME...] Mask one or more units\n"
4677 " unmask [NAME...] Unmask one or more units\n"
4678 " link [PATH...] Link one or more units files into\n"
4679 " the search path\n"
4680 " get-default Get the name of the default target\n"
4681 " set-default NAME Set the default target\n"
4682 " is-enabled [NAME...] Check whether unit files are enabled\n\n"
4684 " list-jobs List jobs\n"
4685 " cancel [JOB...] Cancel all, one, or more jobs\n\n"
4686 "Status Commands:\n"
4687 " dump Dump server status\n"
4688 "Snapshot Commands:\n"
4689 " snapshot [NAME] Create a snapshot\n"
4690 " delete [NAME...] Remove one or more snapshots\n\n"
4691 "Environment Commands:\n"
4692 " show-environment Dump environment\n"
4693 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
4694 " unset-environment [NAME...] Unset one or more environment variables\n"
4695 " set-log-level LEVEL Set logging threshold for systemd\n\n"
4696 "Manager Lifecycle Commands:\n"
4697 " daemon-reload Reload systemd manager configuration\n"
4698 " daemon-reexec Reexecute systemd manager\n\n"
4699 "System Commands:\n"
4700 " default Enter system default mode\n"
4701 " rescue Enter system rescue mode\n"
4702 " emergency Enter system emergency mode\n"
4703 " halt Shut down and halt the system\n"
4704 " poweroff Shut down and power-off the system\n"
4705 " reboot Shut down and reboot the system\n"
4706 " kexec Shut down and reboot the system with kexec\n"
4707 " exit Request user instance exit\n"
4708 " switch-root [ROOT] [INIT] Change to a different root file system\n"
4709 " suspend Suspend the system\n"
4710 " hibernate Hibernate the system\n"
4711 " hybrid-sleep Hibernate and suspend the system\n",
4712 program_invocation_short_name);
4717 static int halt_help(void) {
4719 printf("%s [OPTIONS...]\n\n"
4720 "%s the system.\n\n"
4721 " --help Show this help\n"
4722 " --halt Halt the machine\n"
4723 " -p --poweroff Switch off the machine\n"
4724 " --reboot Reboot the machine\n"
4725 " -f --force Force immediate halt/power-off/reboot\n"
4726 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
4727 " -d --no-wtmp Don't write wtmp record\n"
4728 " --no-wall Don't send wall message before halt/power-off/reboot\n",
4729 program_invocation_short_name,
4730 arg_action == ACTION_REBOOT ? "Reboot" :
4731 arg_action == ACTION_POWEROFF ? "Power off" :
4737 static int shutdown_help(void) {
4739 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
4740 "Shut down the system.\n\n"
4741 " --help Show this help\n"
4742 " -H --halt Halt the machine\n"
4743 " -P --poweroff Power-off the machine\n"
4744 " -r --reboot Reboot the machine\n"
4745 " -h Equivalent to --poweroff, overridden by --halt\n"
4746 " -k Don't halt/power-off/reboot, just send warnings\n"
4747 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4748 " -c Cancel a pending shutdown\n",
4749 program_invocation_short_name);
4754 static int telinit_help(void) {
4756 printf("%s [OPTIONS...] {COMMAND}\n\n"
4757 "Send control commands to the init daemon.\n\n"
4758 " --help Show this help\n"
4759 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
4761 " 0 Power-off the machine\n"
4762 " 6 Reboot the machine\n"
4763 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4764 " 1, s, S Enter rescue mode\n"
4765 " q, Q Reload init daemon configuration\n"
4766 " u, U Reexecute init daemon\n",
4767 program_invocation_short_name);
4772 static int runlevel_help(void) {
4774 printf("%s [OPTIONS...]\n\n"
4775 "Prints the previous and current runlevel of the init system.\n\n"
4776 " --help Show this help\n",
4777 program_invocation_short_name);
4782 static int help_types(void) {
4786 puts("Available unit types:");
4787 for(i = 0; i < _UNIT_TYPE_MAX; i++) {
4788 t = unit_type_to_string(i);
4793 puts("\nAvailable unit load states: ");
4794 for(i = 0; i < _UNIT_LOAD_STATE_MAX; i++) {
4795 t = unit_load_state_to_string(i);
4803 static int systemctl_parse_argv(int argc, char *argv[]) {
4812 ARG_IGNORE_DEPENDENCIES,
4824 ARG_NO_ASK_PASSWORD,
4831 static const struct option options[] = {
4832 { "help", no_argument, NULL, 'h' },
4833 { "version", no_argument, NULL, ARG_VERSION },
4834 { "type", required_argument, NULL, 't' },
4835 { "property", required_argument, NULL, 'p' },
4836 { "all", no_argument, NULL, 'a' },
4837 { "reverse", no_argument, NULL, ARG_REVERSE },
4838 { "after", no_argument, NULL, ARG_AFTER },
4839 { "before", no_argument, NULL, ARG_BEFORE },
4840 { "show-types", no_argument, NULL, ARG_SHOW_TYPES },
4841 { "failed", no_argument, NULL, ARG_FAILED },
4842 { "full", no_argument, NULL, 'l' },
4843 { "fail", no_argument, NULL, ARG_FAIL },
4844 { "irreversible", no_argument, NULL, ARG_IRREVERSIBLE },
4845 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES },
4846 { "ignore-inhibitors", no_argument, NULL, 'i' },
4847 { "user", no_argument, NULL, ARG_USER },
4848 { "system", no_argument, NULL, ARG_SYSTEM },
4849 { "global", no_argument, NULL, ARG_GLOBAL },
4850 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4851 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
4852 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
4853 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4854 { "quiet", no_argument, NULL, 'q' },
4855 { "root", required_argument, NULL, ARG_ROOT },
4856 { "force", no_argument, NULL, ARG_FORCE },
4857 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
4858 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4859 { "signal", required_argument, NULL, 's' },
4860 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
4861 { "host", required_argument, NULL, 'H' },
4862 { "privileged",no_argument, NULL, 'P' },
4863 { "runtime", no_argument, NULL, ARG_RUNTIME },
4864 { "lines", required_argument, NULL, 'n' },
4865 { "output", required_argument, NULL, 'o' },
4866 { "plain", no_argument, NULL, ARG_PLAIN },
4867 { NULL, 0, NULL, 0 }
4875 while ((c = getopt_long(argc, argv, "ht:p:aqfs:H:Pn:o:i", options, NULL)) >= 0) {
4884 puts(PACKAGE_STRING);
4885 puts(SYSTEMD_FEATURES);
4892 FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
4893 _cleanup_free_ char *type;
4895 type = strndup(word, size);
4899 if (streq(type, "help")) {
4904 if (unit_type_from_string(type) >= 0) {
4905 if (strv_push(&arg_types, type))
4911 if (unit_load_state_from_string(optarg) >= 0) {
4912 if (strv_push(&arg_load_states, type))
4918 log_error("Unknown unit type or load state '%s'.", type);
4919 log_info("Use -t help to see a list of allowed values.");
4927 /* Make sure that if the empty property list
4928 was specified, we won't show any properties. */
4929 if (isempty(optarg) && !arg_properties) {
4930 arg_properties = strv_new(NULL, NULL);
4931 if (!arg_properties)
4937 FOREACH_WORD_SEPARATOR(word, size, optarg, ",", state) {
4940 prop = strndup(word, size);
4944 if (strv_push(&arg_properties, prop)) {
4951 /* If the user asked for a particular
4952 * property, show it to him, even if it is
4964 arg_dependency = DEPENDENCY_REVERSE;
4968 arg_dependency = DEPENDENCY_AFTER;
4972 arg_dependency = DEPENDENCY_BEFORE;
4975 case ARG_SHOW_TYPES:
4976 arg_show_types = true;
4980 arg_job_mode = "fail";
4983 case ARG_IRREVERSIBLE:
4984 arg_job_mode = "replace-irreversibly";
4987 case ARG_IGNORE_DEPENDENCIES:
4988 arg_job_mode = "ignore-dependencies";
4992 arg_scope = UNIT_FILE_USER;
4996 arg_scope = UNIT_FILE_SYSTEM;
5000 arg_scope = UNIT_FILE_GLOBAL;
5004 arg_no_block = true;
5008 arg_no_legend = true;
5012 arg_no_pager = true;
5044 arg_no_reload = true;
5048 arg_kill_who = optarg;
5052 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
5053 log_error("Failed to parse signal string %s.", optarg);
5058 case ARG_NO_ASK_PASSWORD:
5059 arg_ask_password = false;
5063 arg_transport = TRANSPORT_POLKIT;
5067 arg_transport = TRANSPORT_SSH;
5068 parse_user_at_host(optarg, &arg_user, &arg_host);
5076 if (safe_atou(optarg, &arg_lines) < 0) {
5077 log_error("Failed to parse lines '%s'", optarg);
5083 arg_output = output_mode_from_string(optarg);
5084 if (arg_output < 0) {
5085 log_error("Unknown output '%s'.", optarg);
5091 arg_ignore_inhibitors = true;
5102 log_error("Unknown option code '%c'.", c);
5107 if (arg_transport != TRANSPORT_NORMAL && arg_scope != UNIT_FILE_SYSTEM) {
5108 log_error("Cannot access user instance remotely.");
5115 static int halt_parse_argv(int argc, char *argv[]) {
5124 static const struct option options[] = {
5125 { "help", no_argument, NULL, ARG_HELP },
5126 { "halt", no_argument, NULL, ARG_HALT },
5127 { "poweroff", no_argument, NULL, 'p' },
5128 { "reboot", no_argument, NULL, ARG_REBOOT },
5129 { "force", no_argument, NULL, 'f' },
5130 { "wtmp-only", no_argument, NULL, 'w' },
5131 { "no-wtmp", no_argument, NULL, 'd' },
5132 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5133 { NULL, 0, NULL, 0 }
5141 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
5142 if (runlevel == '0' || runlevel == '6')
5145 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
5153 arg_action = ACTION_HALT;
5157 if (arg_action != ACTION_REBOOT)
5158 arg_action = ACTION_POWEROFF;
5162 arg_action = ACTION_REBOOT;
5184 /* Compatibility nops */
5191 log_error("Unknown option code '%c'.", c);
5196 if (optind < argc) {
5197 log_error("Too many arguments.");
5204 static int parse_time_spec(const char *t, usec_t *_u) {
5208 if (streq(t, "now"))
5210 else if (!strchr(t, ':')) {
5213 if (safe_atou64(t, &u) < 0)
5216 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
5225 hour = strtol(t, &e, 10);
5226 if (errno > 0 || *e != ':' || hour < 0 || hour > 23)
5229 minute = strtol(e+1, &e, 10);
5230 if (errno > 0 || *e != 0 || minute < 0 || minute > 59)
5233 n = now(CLOCK_REALTIME);
5234 s = (time_t) (n / USEC_PER_SEC);
5236 assert_se(localtime_r(&s, &tm));
5238 tm.tm_hour = (int) hour;
5239 tm.tm_min = (int) minute;
5242 assert_se(s = mktime(&tm));
5244 *_u = (usec_t) s * USEC_PER_SEC;
5247 *_u += USEC_PER_DAY;
5253 static int shutdown_parse_argv(int argc, char *argv[]) {
5260 static const struct option options[] = {
5261 { "help", no_argument, NULL, ARG_HELP },
5262 { "halt", no_argument, NULL, 'H' },
5263 { "poweroff", no_argument, NULL, 'P' },
5264 { "reboot", no_argument, NULL, 'r' },
5265 { "kexec", no_argument, NULL, 'K' }, /* not documented extension */
5266 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5267 { NULL, 0, NULL, 0 }
5275 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
5283 arg_action = ACTION_HALT;
5287 arg_action = ACTION_POWEROFF;
5292 arg_action = ACTION_KEXEC;
5294 arg_action = ACTION_REBOOT;
5298 arg_action = ACTION_KEXEC;
5302 if (arg_action != ACTION_HALT)
5303 arg_action = ACTION_POWEROFF;
5316 /* Compatibility nops */
5320 arg_action = ACTION_CANCEL_SHUTDOWN;
5327 log_error("Unknown option code '%c'.", c);
5332 if (argc > optind && arg_action != ACTION_CANCEL_SHUTDOWN) {
5333 r = parse_time_spec(argv[optind], &arg_when);
5335 log_error("Failed to parse time specification: %s", argv[optind]);
5339 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
5341 if (argc > optind && arg_action == ACTION_CANCEL_SHUTDOWN)
5342 /* No time argument for shutdown cancel */
5343 arg_wall = argv + optind;
5344 else if (argc > optind + 1)
5345 /* We skip the time argument */
5346 arg_wall = argv + optind + 1;
5353 static int telinit_parse_argv(int argc, char *argv[]) {
5360 static const struct option options[] = {
5361 { "help", no_argument, NULL, ARG_HELP },
5362 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5363 { NULL, 0, NULL, 0 }
5366 static const struct {
5370 { '0', ACTION_POWEROFF },
5371 { '6', ACTION_REBOOT },
5372 { '1', ACTION_RESCUE },
5373 { '2', ACTION_RUNLEVEL2 },
5374 { '3', ACTION_RUNLEVEL3 },
5375 { '4', ACTION_RUNLEVEL4 },
5376 { '5', ACTION_RUNLEVEL5 },
5377 { 's', ACTION_RESCUE },
5378 { 'S', ACTION_RESCUE },
5379 { 'q', ACTION_RELOAD },
5380 { 'Q', ACTION_RELOAD },
5381 { 'u', ACTION_REEXEC },
5382 { 'U', ACTION_REEXEC }
5391 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5406 log_error("Unknown option code '%c'.", c);
5411 if (optind >= argc) {
5416 if (optind + 1 < argc) {
5417 log_error("Too many arguments.");
5421 if (strlen(argv[optind]) != 1) {
5422 log_error("Expected single character argument.");
5426 for (i = 0; i < ELEMENTSOF(table); i++)
5427 if (table[i].from == argv[optind][0])
5430 if (i >= ELEMENTSOF(table)) {
5431 log_error("Unknown command '%s'.", argv[optind]);
5435 arg_action = table[i].to;
5442 static int runlevel_parse_argv(int argc, char *argv[]) {
5448 static const struct option options[] = {
5449 { "help", no_argument, NULL, ARG_HELP },
5450 { NULL, 0, NULL, 0 }
5458 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5469 log_error("Unknown option code '%c'.", c);
5474 if (optind < argc) {
5475 log_error("Too many arguments.");
5482 static int parse_argv(int argc, char *argv[]) {
5486 if (program_invocation_short_name) {
5488 if (strstr(program_invocation_short_name, "halt")) {
5489 arg_action = ACTION_HALT;
5490 return halt_parse_argv(argc, argv);
5491 } else if (strstr(program_invocation_short_name, "poweroff")) {
5492 arg_action = ACTION_POWEROFF;
5493 return halt_parse_argv(argc, argv);
5494 } else if (strstr(program_invocation_short_name, "reboot")) {
5496 arg_action = ACTION_KEXEC;
5498 arg_action = ACTION_REBOOT;
5499 return halt_parse_argv(argc, argv);
5500 } else if (strstr(program_invocation_short_name, "shutdown")) {
5501 arg_action = ACTION_POWEROFF;
5502 return shutdown_parse_argv(argc, argv);
5503 } else if (strstr(program_invocation_short_name, "init")) {
5505 if (sd_booted() > 0) {
5506 arg_action = ACTION_INVALID;
5507 return telinit_parse_argv(argc, argv);
5509 /* Hmm, so some other init system is
5510 * running, we need to forward this
5511 * request to it. For now we simply
5512 * guess that it is Upstart. */
5514 execv(TELINIT, argv);
5516 log_error("Couldn't find an alternative telinit implementation to spawn.");
5520 } else if (strstr(program_invocation_short_name, "runlevel")) {
5521 arg_action = ACTION_RUNLEVEL;
5522 return runlevel_parse_argv(argc, argv);
5526 arg_action = ACTION_SYSTEMCTL;
5527 return systemctl_parse_argv(argc, argv);
5530 _pure_ static int action_to_runlevel(void) {
5532 static const char table[_ACTION_MAX] = {
5533 [ACTION_HALT] = '0',
5534 [ACTION_POWEROFF] = '0',
5535 [ACTION_REBOOT] = '6',
5536 [ACTION_RUNLEVEL2] = '2',
5537 [ACTION_RUNLEVEL3] = '3',
5538 [ACTION_RUNLEVEL4] = '4',
5539 [ACTION_RUNLEVEL5] = '5',
5540 [ACTION_RESCUE] = '1'
5543 assert(arg_action < _ACTION_MAX);
5545 return table[arg_action];
5548 static int talk_upstart(void) {
5549 _cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
5550 _cleanup_dbus_error_free_ DBusError error;
5551 int previous, rl, r;
5553 env1_buf[] = "RUNLEVEL=X",
5554 env2_buf[] = "PREVLEVEL=X";
5555 char *env1 = env1_buf, *env2 = env2_buf;
5556 const char *emit = "runlevel";
5557 dbus_bool_t b_false = FALSE;
5558 DBusMessageIter iter, sub;
5559 DBusConnection *bus;
5561 dbus_error_init(&error);
5563 if (!(rl = action_to_runlevel()))
5566 if (utmp_get_runlevel(&previous, NULL) < 0)
5569 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
5570 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
5575 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
5580 if ((r = bus_check_peercred(bus)) < 0) {
5581 log_error("Failed to verify owner of bus.");
5585 if (!(m = dbus_message_new_method_call(
5586 "com.ubuntu.Upstart",
5587 "/com/ubuntu/Upstart",
5588 "com.ubuntu.Upstart0_6",
5591 log_error("Could not allocate message.");
5596 dbus_message_iter_init_append(m, &iter);
5598 env1_buf[sizeof(env1_buf)-2] = rl;
5599 env2_buf[sizeof(env2_buf)-2] = previous;
5601 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
5602 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
5603 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
5604 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
5605 !dbus_message_iter_close_container(&iter, &sub) ||
5606 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
5607 log_error("Could not append arguments to message.");
5612 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
5614 if (bus_error_is_no_service(&error)) {
5619 log_error("Failed to issue method call: %s", bus_error_message(&error));
5628 dbus_connection_flush(bus);
5629 dbus_connection_close(bus);
5630 dbus_connection_unref(bus);
5636 static int talk_initctl(void) {
5637 struct init_request request = {};
5639 _cleanup_close_ int fd = -1;
5642 rl = action_to_runlevel();
5646 request.magic = INIT_MAGIC;
5647 request.sleeptime = 0;
5648 request.cmd = INIT_CMD_RUNLVL;
5649 request.runlevel = rl;
5651 fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY);
5653 if (errno == ENOENT)
5656 log_error("Failed to open "INIT_FIFO": %m");
5661 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
5663 log_error("Failed to write to "INIT_FIFO": %m");
5664 return errno > 0 ? -errno : -EIO;
5670 static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
5672 static const struct {
5680 int (* const dispatch)(DBusConnection *bus, char **args);
5682 { "list-units", LESS, 1, list_units },
5683 { "list-unit-files", EQUAL, 1, list_unit_files },
5684 { "list-sockets", LESS, 1, list_sockets },
5685 { "list-jobs", EQUAL, 1, list_jobs },
5686 { "clear-jobs", EQUAL, 1, daemon_reload },
5687 { "load", MORE, 2, load_unit },
5688 { "cancel", MORE, 2, cancel_job },
5689 { "start", MORE, 2, start_unit },
5690 { "stop", MORE, 2, start_unit },
5691 { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5692 { "reload", MORE, 2, start_unit },
5693 { "restart", MORE, 2, start_unit },
5694 { "try-restart", MORE, 2, start_unit },
5695 { "reload-or-restart", MORE, 2, start_unit },
5696 { "reload-or-try-restart", MORE, 2, start_unit },
5697 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
5698 { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5699 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
5700 { "isolate", EQUAL, 2, start_unit },
5701 { "set-cgroup", MORE, 3, set_cgroup },
5702 { "unset-cgroup", MORE, 3, set_cgroup },
5703 { "get-cgroup-attr", MORE, 3, get_cgroup_attr },
5704 { "set-cgroup-attr", MORE, 4, set_cgroup_attr },
5705 { "unset-cgroup-attr", MORE, 3, set_cgroup },
5706 { "kill", MORE, 2, kill_unit },
5707 { "is-active", MORE, 2, check_unit_active },
5708 { "check", MORE, 2, check_unit_active },
5709 { "is-failed", MORE, 2, check_unit_failed },
5710 { "show", MORE, 1, show },
5711 { "status", MORE, 1, show },
5712 { "help", MORE, 2, show },
5713 { "dump", EQUAL, 1, dump },
5714 { "snapshot", LESS, 2, snapshot },
5715 { "delete", MORE, 2, delete_snapshot },
5716 { "daemon-reload", EQUAL, 1, daemon_reload },
5717 { "daemon-reexec", EQUAL, 1, daemon_reload },
5718 { "show-environment", EQUAL, 1, show_enviroment },
5719 { "set-environment", MORE, 2, set_environment },
5720 { "unset-environment", MORE, 2, set_environment },
5721 { "halt", EQUAL, 1, start_special },
5722 { "poweroff", EQUAL, 1, start_special },
5723 { "reboot", EQUAL, 1, start_special },
5724 { "kexec", EQUAL, 1, start_special },
5725 { "suspend", EQUAL, 1, start_special },
5726 { "hibernate", EQUAL, 1, start_special },
5727 { "hybrid-sleep", EQUAL, 1, start_special },
5728 { "default", EQUAL, 1, start_special },
5729 { "rescue", EQUAL, 1, start_special },
5730 { "emergency", EQUAL, 1, start_special },
5731 { "exit", EQUAL, 1, start_special },
5732 { "reset-failed", MORE, 1, reset_failed },
5733 { "enable", MORE, 2, enable_unit },
5734 { "disable", MORE, 2, enable_unit },
5735 { "is-enabled", MORE, 2, unit_is_enabled },
5736 { "reenable", MORE, 2, enable_unit },
5737 { "preset", MORE, 2, enable_unit },
5738 { "mask", MORE, 2, enable_unit },
5739 { "unmask", MORE, 2, enable_unit },
5740 { "link", MORE, 2, enable_unit },
5741 { "switch-root", MORE, 2, switch_root },
5742 { "list-dependencies", LESS, 2, list_dependencies },
5743 { "set-default", EQUAL, 2, enable_unit },
5744 { "get-default", LESS, 1, get_default },
5745 { "set-log-level", EQUAL, 2, set_log_level },
5755 left = argc - optind;
5758 /* Special rule: no arguments means "list-units" */
5761 if (streq(argv[optind], "help") && !argv[optind+1]) {
5762 log_error("This command expects one or more "
5763 "unit names. Did you mean --help?");
5767 for (i = 0; i < ELEMENTSOF(verbs); i++)
5768 if (streq(argv[optind], verbs[i].verb))
5771 if (i >= ELEMENTSOF(verbs)) {
5772 log_error("Unknown operation '%s'.", argv[optind]);
5777 switch (verbs[i].argc_cmp) {
5780 if (left != verbs[i].argc) {
5781 log_error("Invalid number of arguments.");
5788 if (left < verbs[i].argc) {
5789 log_error("Too few arguments.");
5796 if (left > verbs[i].argc) {
5797 log_error("Too many arguments.");
5804 assert_not_reached("Unknown comparison operator.");
5807 /* Require a bus connection for all operations but
5809 if (!streq(verbs[i].verb, "enable") &&
5810 !streq(verbs[i].verb, "disable") &&
5811 !streq(verbs[i].verb, "is-enabled") &&
5812 !streq(verbs[i].verb, "list-unit-files") &&
5813 !streq(verbs[i].verb, "reenable") &&
5814 !streq(verbs[i].verb, "preset") &&
5815 !streq(verbs[i].verb, "mask") &&
5816 !streq(verbs[i].verb, "unmask") &&
5817 !streq(verbs[i].verb, "link") &&
5818 !streq(verbs[i].verb, "set-default") &&
5819 !streq(verbs[i].verb, "get-default")) {
5821 if (running_in_chroot() > 0) {
5822 log_info("Running in chroot, ignoring request.");
5826 if (((!streq(verbs[i].verb, "reboot") &&
5827 !streq(verbs[i].verb, "halt") &&
5828 !streq(verbs[i].verb, "poweroff")) || arg_force <= 0) && !bus) {
5829 log_error("Failed to get D-Bus connection: %s",
5830 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5836 if (!bus && !avoid_bus()) {
5837 log_error("Failed to get D-Bus connection: %s",
5838 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5843 return verbs[i].dispatch(bus, argv + optind);
5846 static int send_shutdownd(usec_t t, char mode, bool dry_run, bool warn, const char *message) {
5847 _cleanup_close_ int fd;
5848 struct sd_shutdown_command c = {
5854 union sockaddr_union sockaddr = {
5855 .un.sun_family = AF_UNIX,
5856 .un.sun_path = "/run/systemd/shutdownd",
5858 struct iovec iovec[2] = {
5859 {.iov_base = (char*) &c,
5860 .iov_len = offsetof(struct sd_shutdown_command, wall_message),
5863 struct msghdr msghdr = {
5864 .msg_name = &sockaddr,
5865 .msg_namelen = offsetof(struct sockaddr_un, sun_path)
5866 + sizeof("/run/systemd/shutdownd") - 1,
5871 fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
5875 if (!isempty(message)) {
5876 iovec[1].iov_base = (char*) message;
5877 iovec[1].iov_len = strlen(message);
5878 msghdr.msg_iovlen++;
5881 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0)
5887 static int reload_with_fallback(DBusConnection *bus) {
5890 /* First, try systemd via D-Bus. */
5891 if (daemon_reload(bus, NULL) >= 0)
5895 /* Nothing else worked, so let's try signals */
5896 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5898 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5899 log_error("kill() failed: %m");
5906 static int start_with_fallback(DBusConnection *bus) {
5909 /* First, try systemd via D-Bus. */
5910 if (start_unit(bus, NULL) >= 0)
5914 /* Hmm, talking to systemd via D-Bus didn't work. Then
5915 * let's try to talk to Upstart via D-Bus. */
5916 if (talk_upstart() > 0)
5919 /* Nothing else worked, so let's try
5921 if (talk_initctl() > 0)
5924 log_error("Failed to talk to init daemon.");
5928 warn_wall(arg_action);
5932 static _noreturn_ void halt_now(enum action a) {
5934 /* Make sure C-A-D is handled by the kernel from this
5936 reboot(RB_ENABLE_CAD);
5941 log_info("Halting.");
5942 reboot(RB_HALT_SYSTEM);
5945 case ACTION_POWEROFF:
5946 log_info("Powering off.");
5947 reboot(RB_POWER_OFF);
5951 log_info("Rebooting.");
5952 reboot(RB_AUTOBOOT);
5956 assert_not_reached("Unknown halt action.");
5959 assert_not_reached("Uh? This shouldn't happen.");
5962 static int halt_main(DBusConnection *bus) {
5965 r = check_inhibitors(bus, arg_action);
5969 if (geteuid() != 0) {
5970 /* Try logind if we are a normal user and no special
5971 * mode applies. Maybe PolicyKit allows us to shutdown
5974 if (arg_when <= 0 &&
5977 (arg_action == ACTION_POWEROFF ||
5978 arg_action == ACTION_REBOOT)) {
5979 r = reboot_with_logind(bus, arg_action);
5984 log_error("Must be root.");
5989 _cleanup_free_ char *m;
5991 m = strv_join(arg_wall, " ");
5992 r = send_shutdownd(arg_when,
5993 arg_action == ACTION_HALT ? 'H' :
5994 arg_action == ACTION_POWEROFF ? 'P' :
5995 arg_action == ACTION_KEXEC ? 'K' :
6002 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
6004 char date[FORMAT_TIMESTAMP_MAX];
6006 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
6007 format_timestamp(date, sizeof(date), arg_when));
6012 if (!arg_dry && !arg_force)
6013 return start_with_fallback(bus);
6016 if (sd_booted() > 0)
6017 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
6019 r = utmp_put_shutdown();
6021 log_warning("Failed to write utmp record: %s", strerror(-r));
6028 halt_now(arg_action);
6029 /* We should never reach this. */
6033 static int runlevel_main(void) {
6034 int r, runlevel, previous;
6036 r = utmp_get_runlevel(&runlevel, &previous);
6043 previous <= 0 ? 'N' : previous,
6044 runlevel <= 0 ? 'N' : runlevel);
6049 int main(int argc, char*argv[]) {
6050 int r, retval = EXIT_FAILURE;
6051 DBusConnection *bus = NULL;
6052 _cleanup_dbus_error_free_ DBusError error;
6054 dbus_error_init(&error);
6056 setlocale(LC_ALL, "");
6057 log_parse_environment();
6060 r = parse_argv(argc, argv);
6064 retval = EXIT_SUCCESS;
6068 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
6069 * let's shortcut this */
6070 if (arg_action == ACTION_RUNLEVEL) {
6071 r = runlevel_main();
6072 retval = r < 0 ? EXIT_FAILURE : r;
6076 if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
6077 log_info("Running in chroot, ignoring request.");
6083 if (arg_transport == TRANSPORT_NORMAL)
6084 bus_connect(arg_scope == UNIT_FILE_SYSTEM ? DBUS_BUS_SYSTEM : DBUS_BUS_SESSION, &bus, &private_bus, &error);
6085 else if (arg_transport == TRANSPORT_POLKIT) {
6086 bus_connect_system_polkit(&bus, &error);
6087 private_bus = false;
6088 } else if (arg_transport == TRANSPORT_SSH) {
6089 bus_connect_system_ssh(arg_user, arg_host, &bus, &error);
6090 private_bus = false;
6092 assert_not_reached("Uh, invalid transport...");
6095 switch (arg_action) {
6097 case ACTION_SYSTEMCTL:
6098 r = systemctl_main(bus, argc, argv, &error);
6102 case ACTION_POWEROFF:
6108 case ACTION_RUNLEVEL2:
6109 case ACTION_RUNLEVEL3:
6110 case ACTION_RUNLEVEL4:
6111 case ACTION_RUNLEVEL5:
6113 case ACTION_EMERGENCY:
6114 case ACTION_DEFAULT:
6115 r = start_with_fallback(bus);
6120 r = reload_with_fallback(bus);
6123 case ACTION_CANCEL_SHUTDOWN: {
6127 m = strv_join(arg_wall, " ");
6129 retval = EXIT_FAILURE;
6133 r = send_shutdownd(arg_when, SD_SHUTDOWN_NONE, false, !arg_no_wall, m);
6135 log_warning("Failed to talk to shutdownd, shutdown hasn't been cancelled: %s", strerror(-r));
6140 case ACTION_INVALID:
6141 case ACTION_RUNLEVEL:
6143 assert_not_reached("Unknown action");
6146 retval = r < 0 ? EXIT_FAILURE : r;
6150 dbus_connection_flush(bus);
6151 dbus_connection_close(bus);
6152 dbus_connection_unref(bus);
6157 strv_free(arg_types);
6158 strv_free(arg_load_states);
6159 strv_free(arg_properties);
6162 ask_password_agent_close();
6163 polkit_agent_close();