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>
28 #include <sys/ioctl.h>
32 #include <sys/socket.h>
35 #include <sys/prctl.h>
36 #include <dbus/dbus.h>
38 #include <systemd/sd-daemon.h>
39 #include <systemd/sd-shutdown.h>
45 #include "utmp-wtmp.h"
48 #include "path-util.h"
50 #include "dbus-common.h"
51 #include "cgroup-show.h"
52 #include "cgroup-util.h"
54 #include "path-lookup.h"
55 #include "conf-parser.h"
56 #include "exit-status.h"
57 #include "bus-errors.h"
59 #include "unit-name.h"
61 #include "spawn-ask-password-agent.h"
62 #include "spawn-polkit-agent.h"
64 #include "logs-show.h"
65 #include "path-util.h"
67 static const char *arg_type = NULL;
68 static char **arg_property = NULL;
69 static bool arg_all = false;
70 static const char *arg_job_mode = "replace";
71 static UnitFileScope arg_scope = UNIT_FILE_SYSTEM;
72 static bool arg_no_block = false;
73 static bool arg_no_legend = false;
74 static bool arg_no_pager = false;
75 static bool arg_no_wtmp = false;
76 static bool arg_no_sync = false;
77 static bool arg_no_wall = false;
78 static bool arg_no_reload = false;
79 static bool arg_dry = false;
80 static bool arg_quiet = false;
81 static bool arg_full = false;
82 static int arg_force = 0;
83 static bool arg_ask_password = true;
84 static bool arg_failed = false;
85 static bool arg_runtime = false;
86 static char **arg_wall = NULL;
87 static const char *arg_kill_who = NULL;
88 static const char *arg_kill_mode = NULL;
89 static int arg_signal = SIGTERM;
90 static const char *arg_root = NULL;
91 static usec_t arg_when = 0;
112 ACTION_CANCEL_SHUTDOWN,
114 } arg_action = ACTION_SYSTEMCTL;
120 static enum transport {
124 } arg_transport = TRANSPORT_NORMAL;
125 static const char *arg_host = NULL;
126 static bool arg_follow = false;
127 static unsigned arg_lines = 10;
128 static OutputMode arg_output = OUTPUT_SHORT;
130 static bool private_bus = false;
132 static int daemon_reload(DBusConnection *bus, char **args);
133 static void halt_now(enum action a);
135 static bool on_tty(void) {
138 /* Note that this is invoked relatively early, before we start
139 * the pager. That means the value we return reflects whether
140 * we originally were started on a tty, not if we currently
141 * are. But this is intended, since we want colour and so on
142 * when run in our own pager. */
144 if (_unlikely_(t < 0))
145 t = isatty(STDOUT_FILENO) > 0;
150 static void pager_open_if_enabled(void) {
152 /* Cache result before we open the pager */
161 static void ask_password_agent_open_if_enabled(void) {
163 /* Open the password agent as a child process if necessary */
165 if (!arg_ask_password)
168 if (arg_scope != UNIT_FILE_SYSTEM)
171 ask_password_agent_open();
175 static void polkit_agent_open_if_enabled(void) {
177 /* Open the polkit agent as a child process if necessary */
179 if (!arg_ask_password)
182 if (arg_scope != UNIT_FILE_SYSTEM)
189 static const char *ansi_highlight_red(bool b) {
194 return b ? ANSI_HIGHLIGHT_RED_ON : ANSI_HIGHLIGHT_OFF;
197 static const char *ansi_highlight_green(bool b) {
202 return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF;
205 static bool error_is_no_service(const DBusError *error) {
208 if (!dbus_error_is_set(error))
211 if (dbus_error_has_name(error, DBUS_ERROR_NAME_HAS_NO_OWNER))
214 if (dbus_error_has_name(error, DBUS_ERROR_SERVICE_UNKNOWN))
217 return startswith(error->name, "org.freedesktop.DBus.Error.Spawn.");
220 static int translate_bus_error_to_exit_status(int r, const DBusError *error) {
223 if (!dbus_error_is_set(error))
226 if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) ||
227 dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
228 dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
229 dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
230 return EXIT_NOPERMISSION;
232 if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
233 return EXIT_NOTINSTALLED;
235 if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
236 dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED))
237 return EXIT_NOTIMPLEMENTED;
239 if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
240 return EXIT_NOTCONFIGURED;
248 static void warn_wall(enum action a) {
249 static const char *table[_ACTION_MAX] = {
250 [ACTION_HALT] = "The system is going down for system halt NOW!",
251 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
252 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
253 [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!",
254 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
255 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!"
264 p = strv_join(arg_wall, " ");
266 log_error("Failed to join strings.");
282 utmp_wall(table[a], NULL);
285 static bool avoid_bus(void) {
287 if (running_in_chroot() > 0)
290 if (sd_booted() <= 0)
293 if (!isempty(arg_root))
296 if (arg_scope == UNIT_FILE_GLOBAL)
304 const char *description;
305 const char *load_state;
306 const char *active_state;
307 const char *sub_state;
308 const char *following;
309 const char *unit_path;
311 const char *job_type;
312 const char *job_path;
315 static int compare_unit_info(const void *a, const void *b) {
317 const struct unit_info *u = a, *v = b;
319 d1 = strrchr(u->id, '.');
320 d2 = strrchr(v->id, '.');
325 if ((r = strcasecmp(d1, d2)) != 0)
329 return strcasecmp(u->id, v->id);
332 static bool output_show_unit(const struct unit_info *u) {
336 return streq(u->active_state, "failed");
338 return (!arg_type || ((dot = strrchr(u->id, '.')) &&
339 streq(dot+1, arg_type))) &&
340 (arg_all || !(streq(u->active_state, "inactive") || u->following[0]) || u->job_id > 0);
343 static void output_units_list(const struct unit_info *unit_infos, unsigned c) {
344 unsigned id_len, max_id_len, active_len, sub_len, job_len, desc_len, n_shown = 0;
345 const struct unit_info *u;
347 max_id_len = sizeof("UNIT")-1;
348 active_len = sizeof("ACTIVE")-1;
349 sub_len = sizeof("SUB")-1;
350 job_len = sizeof("JOB")-1;
353 for (u = unit_infos; u < unit_infos + c; u++) {
354 if (!output_show_unit(u))
357 max_id_len = MAX(max_id_len, strlen(u->id));
358 active_len = MAX(active_len, strlen(u->active_state));
359 sub_len = MAX(sub_len, strlen(u->sub_state));
361 job_len = MAX(job_len, strlen(u->job_type));
366 id_len = MIN(max_id_len, 25);
367 basic_len = 5 + id_len + 6 + active_len + sub_len + job_len;
368 if (basic_len < (unsigned) columns()) {
369 unsigned extra_len, incr;
370 extra_len = columns() - basic_len;
371 /* Either UNIT already got 25, or is fully satisfied.
372 * Grant up to 25 to DESC now. */
373 incr = MIN(extra_len, 25);
376 /* split the remaining space between UNIT and DESC,
377 * but do not give UNIT more than it needs. */
379 incr = MIN(extra_len / 2, max_id_len - id_len);
381 desc_len += extra_len - incr;
387 if (!arg_no_legend) {
388 printf("%-*s %-6s %-*s %-*s %-*s ", id_len, "UNIT", "LOAD",
389 active_len, "ACTIVE", sub_len, "SUB", job_len, "JOB");
390 if (!arg_full && arg_no_pager)
391 printf("%.*s\n", desc_len, "DESCRIPTION");
393 printf("%s\n", "DESCRIPTION");
396 for (u = unit_infos; u < unit_infos + c; u++) {
398 const char *on_loaded, *off_loaded;
399 const char *on_active, *off_active;
401 if (!output_show_unit(u))
406 if (streq(u->load_state, "error")) {
407 on_loaded = ansi_highlight_red(true);
408 off_loaded = ansi_highlight_red(false);
410 on_loaded = off_loaded = "";
412 if (streq(u->active_state, "failed")) {
413 on_active = ansi_highlight_red(true);
414 off_active = ansi_highlight_red(false);
416 on_active = off_active = "";
418 e = arg_full ? NULL : ellipsize(u->id, id_len, 33);
420 printf("%-*s %s%-6s%s %s%-*s %-*s%s %-*s ",
421 id_len, e ? e : u->id,
422 on_loaded, u->load_state, off_loaded,
423 on_active, active_len, u->active_state,
424 sub_len, u->sub_state, off_active,
425 job_len, u->job_id ? u->job_type : "");
426 if (!arg_full && arg_no_pager)
427 printf("%.*s\n", desc_len, u->description);
429 printf("%s\n", u->description);
434 if (!arg_no_legend) {
435 printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
436 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
437 "SUB = The low-level unit activation state, values depend on unit type.\n"
438 "JOB = Pending job for the unit.\n");
441 printf("\n%u units listed.\n", n_shown);
443 printf("\n%u units listed. Pass --all to see inactive units, too.\n", n_shown);
447 static int list_units(DBusConnection *bus, char **args) {
448 DBusMessage *m = NULL, *reply = NULL;
451 DBusMessageIter iter, sub, sub2;
452 unsigned c = 0, n_units = 0;
453 struct unit_info *unit_infos = NULL;
455 dbus_error_init(&error);
459 pager_open_if_enabled();
461 if (!(m = dbus_message_new_method_call(
462 "org.freedesktop.systemd1",
463 "/org/freedesktop/systemd1",
464 "org.freedesktop.systemd1.Manager",
466 log_error("Could not allocate message.");
470 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
471 log_error("Failed to issue method call: %s", bus_error_message(&error));
476 if (!dbus_message_iter_init(reply, &iter) ||
477 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
478 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
479 log_error("Failed to parse reply.");
484 dbus_message_iter_recurse(&iter, &sub);
486 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
489 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
490 log_error("Failed to parse reply.");
498 n_units = MAX(2*c, 16);
499 w = realloc(unit_infos, sizeof(struct unit_info) * n_units);
502 log_error("Failed to allocate unit array.");
512 dbus_message_iter_recurse(&sub, &sub2);
514 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->id, true) < 0 ||
515 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->description, true) < 0 ||
516 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->load_state, true) < 0 ||
517 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->active_state, true) < 0 ||
518 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->sub_state, true) < 0 ||
519 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->following, true) < 0 ||
520 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->unit_path, true) < 0 ||
521 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &u->job_id, true) < 0 ||
522 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->job_type, true) < 0 ||
523 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->job_path, false) < 0) {
524 log_error("Failed to parse reply.");
529 dbus_message_iter_next(&sub);
534 qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info);
535 output_units_list(unit_infos, c);
542 dbus_message_unref(m);
545 dbus_message_unref(reply);
549 dbus_error_free(&error);
554 static int compare_unit_file_list(const void *a, const void *b) {
556 const UnitFileList *u = a, *v = b;
558 d1 = strrchr(u->path, '.');
559 d2 = strrchr(v->path, '.');
564 r = strcasecmp(d1, d2);
569 return strcasecmp(path_get_file_name(u->path), path_get_file_name(v->path));
572 static bool output_show_unit_file(const UnitFileList *u) {
575 return !arg_type || ((dot = strrchr(u->path, '.')) && streq(dot+1, arg_type));
578 static void output_unit_file_list(const UnitFileList *units, unsigned c) {
579 unsigned max_id_len, id_cols, state_cols, n_shown = 0;
580 const UnitFileList *u;
582 max_id_len = sizeof("UNIT FILE")-1;
583 state_cols = sizeof("STATE")-1;
584 for (u = units; u < units + c; u++) {
585 if (!output_show_unit_file(u))
588 max_id_len = MAX(max_id_len, strlen(path_get_file_name(u->path)));
589 state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state)));
594 id_cols = MIN(max_id_len, 25);
595 basic_cols = 1 + id_cols + state_cols;
596 if (basic_cols < (unsigned) columns())
597 id_cols += MIN(columns() - basic_cols, max_id_len - id_cols);
599 id_cols = max_id_len;
602 printf("%-*s %-*s\n", id_cols, "UNIT FILE", state_cols, "STATE");
604 for (u = units; u < units + c; u++) {
606 const char *on, *off;
609 if (!output_show_unit_file(u))
614 if (u->state == UNIT_FILE_MASKED ||
615 u->state == UNIT_FILE_MASKED_RUNTIME ||
616 u->state == UNIT_FILE_DISABLED) {
617 on = ansi_highlight_red(true);
618 off = ansi_highlight_red(false);
619 } else if (u->state == UNIT_FILE_ENABLED) {
620 on = ansi_highlight_green(true);
621 off = ansi_highlight_green(false);
625 id = path_get_file_name(u->path);
627 e = arg_full ? NULL : ellipsize(id, id_cols, 33);
629 printf("%-*s %s%-*s%s\n",
631 on, state_cols, unit_file_state_to_string(u->state), off);
637 printf("\n%u unit files listed.\n", n_shown);
640 static int list_unit_files(DBusConnection *bus, char **args) {
641 DBusMessage *m = NULL, *reply = NULL;
644 DBusMessageIter iter, sub, sub2;
645 unsigned c = 0, n_units = 0;
646 UnitFileList *units = NULL;
648 dbus_error_init(&error);
650 pager_open_if_enabled();
657 h = hashmap_new(string_hash_func, string_compare_func);
659 log_error("Out of memory");
663 r = unit_file_get_list(arg_scope, arg_root, h);
665 unit_file_list_free(h);
666 log_error("Failed to get unit file list: %s", strerror(-r));
670 n_units = hashmap_size(h);
671 units = new(UnitFileList, n_units);
673 unit_file_list_free(h);
674 log_error("Out of memory");
678 HASHMAP_FOREACH(u, h, i) {
679 memcpy(units + c++, u, sizeof(UnitFileList));
687 m = dbus_message_new_method_call(
688 "org.freedesktop.systemd1",
689 "/org/freedesktop/systemd1",
690 "org.freedesktop.systemd1.Manager",
693 log_error("Could not allocate message.");
697 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
699 log_error("Failed to issue method call: %s", bus_error_message(&error));
704 if (!dbus_message_iter_init(reply, &iter) ||
705 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
706 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
707 log_error("Failed to parse reply.");
712 dbus_message_iter_recurse(&iter, &sub);
714 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
718 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
719 log_error("Failed to parse reply.");
727 n_units = MAX(2*c, 16);
728 w = realloc(units, sizeof(struct UnitFileList) * n_units);
731 log_error("Failed to allocate unit array.");
741 dbus_message_iter_recurse(&sub, &sub2);
743 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->path, true) < 0 ||
744 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, false) < 0) {
745 log_error("Failed to parse reply.");
750 u->state = unit_file_state_from_string(state);
752 dbus_message_iter_next(&sub);
758 qsort(units, c, sizeof(UnitFileList), compare_unit_file_list);
759 output_unit_file_list(units, c);
766 dbus_message_unref(m);
769 dbus_message_unref(reply);
773 dbus_error_free(&error);
778 static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) {
779 static const char * const colors[] = {
780 "Requires", "[color=\"black\"]",
781 "RequiresOverridable", "[color=\"black\"]",
782 "Requisite", "[color=\"darkblue\"]",
783 "RequisiteOverridable", "[color=\"darkblue\"]",
784 "Wants", "[color=\"darkgrey\"]",
785 "Conflicts", "[color=\"red\"]",
786 "ConflictedBy", "[color=\"red\"]",
787 "After", "[color=\"green\"]"
790 const char *c = NULL;
797 for (i = 0; i < ELEMENTSOF(colors); i += 2)
798 if (streq(colors[i], prop)) {
806 if (arg_dot != DOT_ALL)
807 if ((arg_dot == DOT_ORDER) != streq(prop, "After"))
810 switch (dbus_message_iter_get_arg_type(iter)) {
812 case DBUS_TYPE_ARRAY:
814 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
817 dbus_message_iter_recurse(iter, &sub);
819 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
822 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
823 dbus_message_iter_get_basic(&sub, &s);
824 printf("\t\"%s\"->\"%s\" %s;\n", name, s, c);
826 dbus_message_iter_next(&sub);
836 static int dot_one(DBusConnection *bus, const char *name, const char *path) {
837 DBusMessage *m = NULL, *reply = NULL;
838 const char *interface = "org.freedesktop.systemd1.Unit";
841 DBusMessageIter iter, sub, sub2, sub3;
846 dbus_error_init(&error);
848 if (!(m = dbus_message_new_method_call(
849 "org.freedesktop.systemd1",
851 "org.freedesktop.DBus.Properties",
853 log_error("Could not allocate message.");
858 if (!dbus_message_append_args(m,
859 DBUS_TYPE_STRING, &interface,
860 DBUS_TYPE_INVALID)) {
861 log_error("Could not append arguments to message.");
866 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
867 log_error("Failed to issue method call: %s", bus_error_message(&error));
872 if (!dbus_message_iter_init(reply, &iter) ||
873 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
874 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
875 log_error("Failed to parse reply.");
880 dbus_message_iter_recurse(&iter, &sub);
882 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
885 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
886 log_error("Failed to parse reply.");
891 dbus_message_iter_recurse(&sub, &sub2);
893 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
894 log_error("Failed to parse reply.");
899 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
900 log_error("Failed to parse reply.");
905 dbus_message_iter_recurse(&sub2, &sub3);
907 if (dot_one_property(name, prop, &sub3)) {
908 log_error("Failed to parse reply.");
913 dbus_message_iter_next(&sub);
920 dbus_message_unref(m);
923 dbus_message_unref(reply);
925 dbus_error_free(&error);
930 static int dot(DBusConnection *bus, char **args) {
931 DBusMessage *m = NULL, *reply = NULL;
934 DBusMessageIter iter, sub, sub2;
936 dbus_error_init(&error);
940 if (!(m = dbus_message_new_method_call(
941 "org.freedesktop.systemd1",
942 "/org/freedesktop/systemd1",
943 "org.freedesktop.systemd1.Manager",
945 log_error("Could not allocate message.");
949 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
950 log_error("Failed to issue method call: %s", bus_error_message(&error));
955 if (!dbus_message_iter_init(reply, &iter) ||
956 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
957 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
958 log_error("Failed to parse reply.");
963 printf("digraph systemd {\n");
965 dbus_message_iter_recurse(&iter, &sub);
966 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
967 const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path;
969 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
970 log_error("Failed to parse reply.");
975 dbus_message_iter_recurse(&sub, &sub2);
977 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
978 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
979 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
980 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
981 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
982 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 ||
983 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) {
984 log_error("Failed to parse reply.");
989 if ((r = dot_one(bus, id, unit_path)) < 0)
992 /* printf("\t\"%s\";\n", id); */
993 dbus_message_iter_next(&sub);
998 log_info(" Color legend: black = Requires\n"
999 " dark blue = Requisite\n"
1000 " dark grey = Wants\n"
1001 " red = Conflicts\n"
1002 " green = After\n");
1005 log_notice("-- You probably want to process this output with graphviz' dot tool.\n"
1006 "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n");
1012 dbus_message_unref(m);
1015 dbus_message_unref(reply);
1017 dbus_error_free(&error);
1022 static int list_jobs(DBusConnection *bus, char **args) {
1023 DBusMessage *m = NULL, *reply = NULL;
1026 DBusMessageIter iter, sub, sub2;
1029 dbus_error_init(&error);
1033 pager_open_if_enabled();
1035 if (!(m = dbus_message_new_method_call(
1036 "org.freedesktop.systemd1",
1037 "/org/freedesktop/systemd1",
1038 "org.freedesktop.systemd1.Manager",
1040 log_error("Could not allocate message.");
1044 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1045 log_error("Failed to issue method call: %s", bus_error_message(&error));
1050 if (!dbus_message_iter_init(reply, &iter) ||
1051 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
1052 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
1053 log_error("Failed to parse reply.");
1058 dbus_message_iter_recurse(&iter, &sub);
1061 printf("%4s %-25s %-15s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
1063 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1064 const char *name, *type, *state, *job_path, *unit_path;
1068 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
1069 log_error("Failed to parse reply.");
1074 dbus_message_iter_recurse(&sub, &sub2);
1076 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
1077 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
1078 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
1079 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
1080 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
1081 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
1082 log_error("Failed to parse reply.");
1087 e = arg_full ? NULL : ellipsize(name, 25, 33);
1088 printf("%4u %-25s %-15s %-7s\n", id, e ? e : name, type, state);
1093 dbus_message_iter_next(&sub);
1097 printf("\n%u jobs listed.\n", k);
1103 dbus_message_unref(m);
1106 dbus_message_unref(reply);
1108 dbus_error_free(&error);
1113 static int load_unit(DBusConnection *bus, char **args) {
1114 DBusMessage *m = NULL;
1119 dbus_error_init(&error);
1124 STRV_FOREACH(name, args+1) {
1127 if (!(m = dbus_message_new_method_call(
1128 "org.freedesktop.systemd1",
1129 "/org/freedesktop/systemd1",
1130 "org.freedesktop.systemd1.Manager",
1132 log_error("Could not allocate message.");
1137 if (!dbus_message_append_args(m,
1138 DBUS_TYPE_STRING, name,
1139 DBUS_TYPE_INVALID)) {
1140 log_error("Could not append arguments to message.");
1145 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1146 log_error("Failed to issue method call: %s", bus_error_message(&error));
1151 dbus_message_unref(m);
1152 dbus_message_unref(reply);
1161 dbus_message_unref(m);
1163 dbus_error_free(&error);
1168 static int cancel_job(DBusConnection *bus, char **args) {
1169 DBusMessage *m = NULL, *reply = NULL;
1174 dbus_error_init(&error);
1179 if (strv_length(args) <= 1)
1180 return daemon_reload(bus, args);
1182 STRV_FOREACH(name, args+1) {
1186 if (!(m = dbus_message_new_method_call(
1187 "org.freedesktop.systemd1",
1188 "/org/freedesktop/systemd1",
1189 "org.freedesktop.systemd1.Manager",
1191 log_error("Could not allocate message.");
1196 if ((r = safe_atou(*name, &id)) < 0) {
1197 log_error("Failed to parse job id: %s", strerror(-r));
1201 assert_cc(sizeof(uint32_t) == sizeof(id));
1202 if (!dbus_message_append_args(m,
1203 DBUS_TYPE_UINT32, &id,
1204 DBUS_TYPE_INVALID)) {
1205 log_error("Could not append arguments to message.");
1210 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1211 log_error("Failed to issue method call: %s", bus_error_message(&error));
1216 if (!dbus_message_get_args(reply, &error,
1217 DBUS_TYPE_OBJECT_PATH, &path,
1218 DBUS_TYPE_INVALID)) {
1219 log_error("Failed to parse reply: %s", bus_error_message(&error));
1224 dbus_message_unref(m);
1225 if (!(m = dbus_message_new_method_call(
1226 "org.freedesktop.systemd1",
1228 "org.freedesktop.systemd1.Job",
1230 log_error("Could not allocate message.");
1235 dbus_message_unref(reply);
1236 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1237 log_error("Failed to issue method call: %s", bus_error_message(&error));
1242 dbus_message_unref(m);
1243 dbus_message_unref(reply);
1251 dbus_message_unref(m);
1254 dbus_message_unref(reply);
1256 dbus_error_free(&error);
1261 static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
1262 DBusMessage *m = NULL, *reply = NULL;
1263 dbus_bool_t b = FALSE;
1264 DBusMessageIter iter, sub;
1266 *interface = "org.freedesktop.systemd1.Unit",
1267 *property = "NeedDaemonReload",
1270 /* We ignore all errors here, since this is used to show a warning only */
1272 if (!(m = dbus_message_new_method_call(
1273 "org.freedesktop.systemd1",
1274 "/org/freedesktop/systemd1",
1275 "org.freedesktop.systemd1.Manager",
1279 if (!dbus_message_append_args(m,
1280 DBUS_TYPE_STRING, &unit,
1284 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
1287 if (!dbus_message_get_args(reply, NULL,
1288 DBUS_TYPE_OBJECT_PATH, &path,
1292 dbus_message_unref(m);
1293 if (!(m = dbus_message_new_method_call(
1294 "org.freedesktop.systemd1",
1296 "org.freedesktop.DBus.Properties",
1300 if (!dbus_message_append_args(m,
1301 DBUS_TYPE_STRING, &interface,
1302 DBUS_TYPE_STRING, &property,
1303 DBUS_TYPE_INVALID)) {
1307 dbus_message_unref(reply);
1308 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
1311 if (!dbus_message_iter_init(reply, &iter) ||
1312 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
1315 dbus_message_iter_recurse(&iter, &sub);
1317 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
1320 dbus_message_iter_get_basic(&sub, &b);
1324 dbus_message_unref(m);
1327 dbus_message_unref(reply);
1332 typedef struct WaitData {
1337 static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
1345 dbus_error_init(&error);
1347 log_debug("Got D-Bus request: %s.%s() on %s",
1348 dbus_message_get_interface(message),
1349 dbus_message_get_member(message),
1350 dbus_message_get_path(message));
1352 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
1353 log_error("Warning! D-Bus connection terminated.");
1354 dbus_connection_close(connection);
1356 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1358 const char *path, *result, *unit;
1359 dbus_bool_t success = true;
1361 if (dbus_message_get_args(message, &error,
1362 DBUS_TYPE_UINT32, &id,
1363 DBUS_TYPE_OBJECT_PATH, &path,
1364 DBUS_TYPE_STRING, &unit,
1365 DBUS_TYPE_STRING, &result,
1366 DBUS_TYPE_INVALID)) {
1369 p = set_remove(d->set, (char*) path);
1373 d->result = strdup(result);
1378 dbus_error_free(&error);
1379 if (dbus_message_get_args(message, &error,
1380 DBUS_TYPE_UINT32, &id,
1381 DBUS_TYPE_OBJECT_PATH, &path,
1382 DBUS_TYPE_STRING, &result,
1383 DBUS_TYPE_INVALID)) {
1386 /* Compatibility with older systemd versions <
1387 * 183 during upgrades. This should be dropped
1389 p = set_remove(d->set, (char*) path);
1393 d->result = strdup(result);
1398 dbus_error_free(&error);
1399 if (dbus_message_get_args(message, &error,
1400 DBUS_TYPE_UINT32, &id,
1401 DBUS_TYPE_OBJECT_PATH, &path,
1402 DBUS_TYPE_BOOLEAN, &success,
1403 DBUS_TYPE_INVALID)) {
1406 /* Compatibility with older systemd versions <
1407 * 19 during upgrades. This should be dropped
1410 p = set_remove(d->set, (char*) path);
1414 d->result = strdup("failed");
1420 log_error("Failed to parse message: %s", bus_error_message(&error));
1424 dbus_error_free(&error);
1425 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1428 static int enable_wait_for_jobs(DBusConnection *bus) {
1436 dbus_error_init(&error);
1437 dbus_bus_add_match(bus,
1439 "sender='org.freedesktop.systemd1',"
1440 "interface='org.freedesktop.systemd1.Manager',"
1441 "member='JobRemoved',"
1442 "path='/org/freedesktop/systemd1'",
1445 if (dbus_error_is_set(&error)) {
1446 log_error("Failed to add match: %s", bus_error_message(&error));
1447 dbus_error_free(&error);
1451 /* This is slightly dirty, since we don't undo the match registrations. */
1455 static int wait_for_jobs(DBusConnection *bus, Set *s) {
1465 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
1466 log_error("Failed to add filter.");
1471 while (!set_isempty(s) &&
1472 dbus_connection_read_write_dispatch(bus, -1))
1475 if (!arg_quiet && d.result) {
1476 if (streq(d.result, "timeout"))
1477 log_error("Job timed out.");
1478 else if (streq(d.result, "canceled"))
1479 log_error("Job canceled.");
1480 else if (streq(d.result, "dependency"))
1481 log_error("A dependency job failed. See system journal for details.");
1482 else if (!streq(d.result, "done") && !streq(d.result, "skipped"))
1483 log_error("Job failed. See system journal and 'systemctl status' for details.");
1486 if (streq_ptr(d.result, "timeout"))
1488 else if (streq_ptr(d.result, "canceled"))
1490 else if (!streq_ptr(d.result, "done") && !streq_ptr(d.result, "skipped"))
1498 /* This is slightly dirty, since we don't undo the filter registration. */
1503 static int get_unit_path(
1504 DBusConnection *bus,
1509 DBusMessage *m = NULL, *reply = NULL;
1517 dbus_error_init(&error);
1519 m = dbus_message_new_method_call("org.freedesktop.systemd1",
1520 "/org/freedesktop/systemd1",
1521 "org.freedesktop.systemd1.Manager",
1524 log_error("Could not allocate message.");
1529 if (!dbus_message_append_args(m,
1530 DBUS_TYPE_STRING, &name,
1531 DBUS_TYPE_INVALID)) {
1532 log_error("Could not append arguments to message.");
1537 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
1539 if (streq(error.name, BUS_ERROR_NO_SUCH_UNIT))
1542 log_error("Failed to issue method call: %s", bus_error_message(&error));
1548 if (!dbus_message_get_args(reply, &error,
1549 DBUS_TYPE_OBJECT_PATH, &path,
1550 DBUS_TYPE_INVALID)) {
1551 log_error("Failed to parse reply: %s", bus_error_message(&error));
1556 *unit_path = strdup(path);
1557 if (!(*unit_path)) {
1558 log_error("Failed to duplicate unit path");
1563 dbus_message_unref(m);
1565 dbus_message_unref(reply);
1567 dbus_error_free(&error);
1572 static int check_one_unit(DBusConnection *bus, char *name, bool quiet) {
1573 DBusMessage *m = NULL, *reply = NULL;
1575 DBusMessageIter iter, sub;
1577 *interface = "org.freedesktop.systemd1.Unit",
1578 *property = "ActiveState";
1579 const char *path = NULL;
1581 int r = 3; /* According to LSB: "program is not running" */
1586 dbus_error_init(&error);
1588 m = dbus_message_new_method_call(
1589 "org.freedesktop.systemd1",
1590 "/org/freedesktop/systemd1",
1591 "org.freedesktop.systemd1.Manager",
1594 log_error("Could not allocate message.");
1599 if (!dbus_message_append_args(m,
1600 DBUS_TYPE_STRING, &name,
1601 DBUS_TYPE_INVALID)) {
1602 log_error("Could not append arguments to message.");
1607 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
1609 /* Hmm, cannot figure out anything about this unit... */
1616 if (!dbus_message_get_args(reply, &error,
1617 DBUS_TYPE_OBJECT_PATH, &path,
1618 DBUS_TYPE_INVALID)) {
1619 log_error("Failed to parse reply: %s", bus_error_message(&error));
1624 dbus_message_unref(m);
1625 m = dbus_message_new_method_call(
1626 "org.freedesktop.systemd1",
1628 "org.freedesktop.DBus.Properties",
1631 log_error("Could not allocate message.");
1636 if (!dbus_message_append_args(m,
1637 DBUS_TYPE_STRING, &interface,
1638 DBUS_TYPE_STRING, &property,
1639 DBUS_TYPE_INVALID)) {
1640 log_error("Could not append arguments to message.");
1645 dbus_message_unref(reply);
1646 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
1648 log_error("Failed to issue method call: %s", bus_error_message(&error));
1653 if (!dbus_message_iter_init(reply, &iter) ||
1654 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1655 log_error("Failed to parse reply.");
1660 dbus_message_iter_recurse(&iter, &sub);
1662 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1663 log_error("Failed to parse reply.");
1668 dbus_message_iter_get_basic(&sub, &state);
1673 if (streq(state, "active") || streq(state, "reloading"))
1678 dbus_message_unref(m);
1681 dbus_message_unref(reply);
1683 dbus_error_free(&error);
1688 static void check_triggering_units(
1689 DBusConnection *bus,
1690 const char *unit_name) {
1693 DBusMessage *m = NULL, *reply = NULL;
1694 DBusMessageIter iter, sub;
1695 char *service_trigger = NULL;
1696 const char *interface = "org.freedesktop.systemd1.Unit",
1697 *triggered_by_property = "TriggeredBy";
1699 char *unit_path = NULL;
1700 bool print_warning_label = true;
1702 dbus_error_init(&error);
1704 if (get_unit_path(bus, unit_name, &unit_path) < 0)
1707 m = dbus_message_new_method_call("org.freedesktop.systemd1",
1709 "org.freedesktop.DBus.Properties",
1712 log_error("Could not allocate message.");
1716 if (!dbus_message_append_args(m,
1717 DBUS_TYPE_STRING, &interface,
1718 DBUS_TYPE_STRING, &triggered_by_property,
1719 DBUS_TYPE_INVALID)) {
1720 log_error("Could not append arguments to message.");
1724 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
1726 log_error("Failed to issue method call: %s", bus_error_message(&error));
1730 if (!dbus_message_iter_init(reply, &iter) ||
1731 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1732 log_error("Failed to parse reply: %s", bus_error_message(&error));
1737 dbus_message_iter_recurse(&iter, &sub);
1738 dbus_message_iter_recurse(&sub, &iter);
1741 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1744 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1745 log_error("Failed to parse reply: %s", bus_error_message(&error));
1749 dbus_message_iter_get_basic(&sub, &service_trigger);
1751 r = check_one_unit(bus, service_trigger, true);
1755 if (print_warning_label) {
1756 log_warning("Warning: Stopping %s, but it can still be activated by:", unit_name);
1757 print_warning_label = false;
1759 log_warning(" %s", service_trigger);
1762 dbus_message_iter_next(&sub);
1766 dbus_message_unref(m);
1769 dbus_message_unref(reply);
1771 dbus_error_free(&error);
1776 static int start_unit_one(
1777 DBusConnection *bus,
1784 DBusMessage *m = NULL, *reply = NULL;
1793 assert(arg_no_block || s);
1795 if (!(m = dbus_message_new_method_call(
1796 "org.freedesktop.systemd1",
1797 "/org/freedesktop/systemd1",
1798 "org.freedesktop.systemd1.Manager",
1800 log_error("Could not allocate message.");
1805 if (!dbus_message_append_args(m,
1806 DBUS_TYPE_STRING, &name,
1807 DBUS_TYPE_STRING, &mode,
1808 DBUS_TYPE_INVALID)) {
1809 log_error("Could not append arguments to message.");
1814 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error))) {
1816 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(error)) {
1817 /* There's always a fallback possible for
1818 * legacy actions. */
1823 log_error("Failed to issue method call: %s", bus_error_message(error));
1828 if (!dbus_message_get_args(reply, error,
1829 DBUS_TYPE_OBJECT_PATH, &path,
1830 DBUS_TYPE_INVALID)) {
1831 log_error("Failed to parse reply: %s", bus_error_message(error));
1836 if (need_daemon_reload(bus, name))
1837 log_warning("Warning: Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.",
1838 arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
1840 if (!arg_no_block) {
1843 if (!(p = strdup(path))) {
1844 log_error("Failed to duplicate path.");
1849 if ((r = set_put(s, p)) < 0) {
1851 log_error("Failed to add path to set.");
1856 /* When stopping a unit warn if it can still be triggered by
1857 * another active unit (socket, path, timer) */
1858 if (!arg_quiet && streq(method, "StopUnit"))
1859 check_triggering_units(bus, name);
1865 dbus_message_unref(m);
1868 dbus_message_unref(reply);
1873 static enum action verb_to_action(const char *verb) {
1874 if (streq(verb, "halt"))
1876 else if (streq(verb, "poweroff"))
1877 return ACTION_POWEROFF;
1878 else if (streq(verb, "reboot"))
1879 return ACTION_REBOOT;
1880 else if (streq(verb, "kexec"))
1881 return ACTION_KEXEC;
1882 else if (streq(verb, "rescue"))
1883 return ACTION_RESCUE;
1884 else if (streq(verb, "emergency"))
1885 return ACTION_EMERGENCY;
1886 else if (streq(verb, "default"))
1887 return ACTION_DEFAULT;
1888 else if (streq(verb, "exit"))
1890 else if (streq(verb, "suspend"))
1891 return ACTION_SUSPEND;
1892 else if (streq(verb, "hibernate"))
1893 return ACTION_HIBERNATE;
1895 return ACTION_INVALID;
1898 static int start_unit(DBusConnection *bus, char **args) {
1900 static const char * const table[_ACTION_MAX] = {
1901 [ACTION_HALT] = SPECIAL_HALT_TARGET,
1902 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
1903 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
1904 [ACTION_KEXEC] = SPECIAL_KEXEC_TARGET,
1905 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
1906 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
1907 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
1908 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
1909 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
1910 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
1911 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET,
1912 [ACTION_EXIT] = SPECIAL_EXIT_TARGET,
1913 [ACTION_SUSPEND] = SPECIAL_SUSPEND_TARGET,
1914 [ACTION_HIBERNATE] = SPECIAL_HIBERNATE_TARGET
1918 const char *method, *mode, *one_name;
1923 dbus_error_init(&error);
1927 ask_password_agent_open_if_enabled();
1929 if (arg_action == ACTION_SYSTEMCTL) {
1931 streq(args[0], "stop") ||
1932 streq(args[0], "condstop") ? "StopUnit" :
1933 streq(args[0], "reload") ? "ReloadUnit" :
1934 streq(args[0], "restart") ? "RestartUnit" :
1936 streq(args[0], "try-restart") ||
1937 streq(args[0], "condrestart") ? "TryRestartUnit" :
1939 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
1941 streq(args[0], "reload-or-try-restart") ||
1942 streq(args[0], "condreload") ||
1944 streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" :
1948 (streq(args[0], "isolate") ||
1949 streq(args[0], "rescue") ||
1950 streq(args[0], "emergency")) ? "isolate" : arg_job_mode;
1952 one_name = table[verb_to_action(args[0])];
1955 assert(arg_action < ELEMENTSOF(table));
1956 assert(table[arg_action]);
1958 method = "StartUnit";
1960 mode = (arg_action == ACTION_EMERGENCY ||
1961 arg_action == ACTION_RESCUE ||
1962 arg_action == ACTION_RUNLEVEL2 ||
1963 arg_action == ACTION_RUNLEVEL3 ||
1964 arg_action == ACTION_RUNLEVEL4 ||
1965 arg_action == ACTION_RUNLEVEL5) ? "isolate" : "replace";
1967 one_name = table[arg_action];
1970 if (!arg_no_block) {
1971 if ((ret = enable_wait_for_jobs(bus)) < 0) {
1972 log_error("Could not watch jobs: %s", strerror(-ret));
1976 if (!(s = set_new(string_hash_func, string_compare_func))) {
1977 log_error("Failed to allocate set.");
1984 if ((ret = start_unit_one(bus, method, one_name, mode, &error, s)) <= 0)
1987 STRV_FOREACH(name, args+1)
1988 if ((r = start_unit_one(bus, method, *name, mode, &error, s)) != 0) {
1989 ret = translate_bus_error_to_exit_status(r, &error);
1990 dbus_error_free(&error);
1995 if ((r = wait_for_jobs(bus, s)) < 0) {
2004 dbus_error_free(&error);
2009 /* Ask systemd-logind, which might grant access to unprivileged users
2010 * through PolicyKit */
2011 static int reboot_with_logind(DBusConnection *bus, enum action a) {
2014 DBusMessage *m = NULL, *reply = NULL;
2016 dbus_bool_t interactive = true;
2019 dbus_error_init(&error);
2021 polkit_agent_open_if_enabled();
2029 case ACTION_POWEROFF:
2030 method = "PowerOff";
2033 case ACTION_SUSPEND:
2037 case ACTION_HIBERNATE:
2038 method = "Hibernate";
2045 m = dbus_message_new_method_call(
2046 "org.freedesktop.login1",
2047 "/org/freedesktop/login1",
2048 "org.freedesktop.login1.Manager",
2051 log_error("Could not allocate message.");
2056 if (!dbus_message_append_args(m,
2057 DBUS_TYPE_BOOLEAN, &interactive,
2058 DBUS_TYPE_INVALID)) {
2059 log_error("Could not append arguments to message.");
2064 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
2066 if (error_is_no_service(&error)) {
2067 log_debug("Failed to issue method call: %s", bus_error_message(&error));
2072 if (dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
2073 log_debug("Failed to issue method call: %s", bus_error_message(&error));
2078 log_info("Failed to issue method call: %s", bus_error_message(&error));
2087 dbus_message_unref(m);
2090 dbus_message_unref(reply);
2092 dbus_error_free(&error);
2100 static int start_special(DBusConnection *bus, char **args) {
2106 a = verb_to_action(args[0]);
2108 if (arg_force >= 2 && geteuid() != 0) {
2109 log_error("Must be root.");
2113 if (arg_force >= 2 &&
2114 (a == ACTION_HALT ||
2115 a == ACTION_POWEROFF ||
2116 a == ACTION_REBOOT))
2119 if (arg_force >= 1 &&
2120 (a == ACTION_HALT ||
2121 a == ACTION_POWEROFF ||
2122 a == ACTION_REBOOT ||
2123 a == ACTION_KEXEC ||
2125 return daemon_reload(bus, args);
2127 /* first try logind, to allow authentication with polkit */
2128 if (geteuid() != 0 &&
2129 (a == ACTION_POWEROFF ||
2130 a == ACTION_REBOOT ||
2131 a == ACTION_SUSPEND ||
2132 a == ACTION_HIBERNATE)) {
2133 r = reboot_with_logind(bus, a);
2138 r = start_unit(bus, args);
2145 static int check_unit(DBusConnection *bus, char **args) {
2147 int r = 3; /* According to LSB: "program is not running" */
2152 STRV_FOREACH(name, args+1) {
2153 int state = check_one_unit(bus, *name, arg_quiet);
2163 static int kill_unit(DBusConnection *bus, char **args) {
2164 DBusMessage *m = NULL;
2172 dbus_error_init(&error);
2175 arg_kill_who = "all";
2178 arg_kill_mode = streq(arg_kill_who, "all") ? "control-group" : "process";
2180 STRV_FOREACH(name, args+1) {
2183 if (!(m = dbus_message_new_method_call(
2184 "org.freedesktop.systemd1",
2185 "/org/freedesktop/systemd1",
2186 "org.freedesktop.systemd1.Manager",
2188 log_error("Could not allocate message.");
2193 if (!dbus_message_append_args(m,
2194 DBUS_TYPE_STRING, name,
2195 DBUS_TYPE_STRING, &arg_kill_who,
2196 DBUS_TYPE_STRING, &arg_kill_mode,
2197 DBUS_TYPE_INT32, &arg_signal,
2198 DBUS_TYPE_INVALID)) {
2199 log_error("Could not append arguments to message.");
2204 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2205 log_error("Failed to issue method call: %s", bus_error_message(&error));
2206 dbus_error_free(&error);
2210 dbus_message_unref(m);
2213 dbus_message_unref(reply);
2219 dbus_message_unref(m);
2221 dbus_error_free(&error);
2226 typedef struct ExecStatusInfo {
2234 usec_t start_timestamp;
2235 usec_t exit_timestamp;
2240 LIST_FIELDS(struct ExecStatusInfo, exec);
2243 static void exec_status_info_free(ExecStatusInfo *i) {
2252 static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
2253 uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
2254 DBusMessageIter sub2, sub3;
2258 int32_t code, status;
2264 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
2267 dbus_message_iter_recurse(sub, &sub2);
2269 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
2272 if (!(i->path = strdup(path)))
2275 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
2276 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
2280 dbus_message_iter_recurse(&sub2, &sub3);
2281 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
2282 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
2283 dbus_message_iter_next(&sub3);
2288 if (!(i->argv = new0(char*, n+1)))
2292 dbus_message_iter_recurse(&sub2, &sub3);
2293 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
2296 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
2297 dbus_message_iter_get_basic(&sub3, &s);
2298 dbus_message_iter_next(&sub3);
2300 if (!(i->argv[n++] = strdup(s)))
2304 if (!dbus_message_iter_next(&sub2) ||
2305 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
2306 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
2307 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp_monotonic, true) < 0 ||
2308 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
2309 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp_monotonic, true) < 0 ||
2310 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
2311 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
2312 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
2316 i->start_timestamp = (usec_t) start_timestamp;
2317 i->exit_timestamp = (usec_t) exit_timestamp;
2318 i->pid = (pid_t) pid;
2325 typedef struct UnitStatusInfo {
2327 const char *load_state;
2328 const char *active_state;
2329 const char *sub_state;
2330 const char *unit_file_state;
2332 const char *description;
2333 const char *following;
2335 char **documentation;
2337 const char *fragment_path;
2338 const char *source_path;
2339 const char *default_control_group;
2341 const char *load_error;
2344 usec_t inactive_exit_timestamp;
2345 usec_t inactive_exit_timestamp_monotonic;
2346 usec_t active_enter_timestamp;
2347 usec_t active_exit_timestamp;
2348 usec_t inactive_enter_timestamp;
2350 bool need_daemon_reload;
2355 const char *status_text;
2358 usec_t start_timestamp;
2359 usec_t exit_timestamp;
2361 int exit_code, exit_status;
2363 usec_t condition_timestamp;
2364 bool condition_result;
2367 unsigned n_accepted;
2368 unsigned n_connections;
2372 const char *sysfs_path;
2374 /* Mount, Automount */
2380 LIST_HEAD(ExecStatusInfo, exec);
2383 static void print_status_info(UnitStatusInfo *i) {
2385 const char *on, *off, *ss;
2387 char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
2388 char since2[FORMAT_TIMESTAMP_MAX], *s2;
2393 /* This shows pretty information about a unit. See
2394 * print_property() for a low-level property printer */
2396 printf("%s", strna(i->id));
2398 if (i->description && !streq_ptr(i->id, i->description))
2399 printf(" - %s", i->description);
2404 printf("\t Follow: unit currently follows state of %s\n", i->following);
2406 if (streq_ptr(i->load_state, "error")) {
2407 on = ansi_highlight_red(true);
2408 off = ansi_highlight_red(false);
2412 path = i->source_path ? i->source_path : i->fragment_path;
2415 printf("\t Loaded: %s%s%s (Reason: %s)\n", on, strna(i->load_state), off, i->load_error);
2416 else if (path && i->unit_file_state)
2417 printf("\t Loaded: %s%s%s (%s; %s)\n", on, strna(i->load_state), off, path, i->unit_file_state);
2419 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, path);
2421 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
2423 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
2425 if (streq_ptr(i->active_state, "failed")) {
2426 on = ansi_highlight_red(true);
2427 off = ansi_highlight_red(false);
2428 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
2429 on = ansi_highlight_green(true);
2430 off = ansi_highlight_green(false);
2435 printf("\t Active: %s%s (%s)%s",
2437 strna(i->active_state),
2441 printf("\t Active: %s%s%s",
2443 strna(i->active_state),
2446 if (!isempty(i->result) && !streq(i->result, "success"))
2447 printf(" (Result: %s)", i->result);
2449 timestamp = (streq_ptr(i->active_state, "active") ||
2450 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
2451 (streq_ptr(i->active_state, "inactive") ||
2452 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
2453 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
2454 i->active_exit_timestamp;
2456 s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp);
2457 s2 = format_timestamp(since2, sizeof(since2), timestamp);
2460 printf(" since %s; %s\n", s2, s1);
2462 printf(" since %s\n", s2);
2466 if (!i->condition_result && i->condition_timestamp > 0) {
2467 s1 = format_timestamp_pretty(since1, sizeof(since1), i->condition_timestamp);
2468 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
2471 printf("\t start condition failed at %s; %s\n", s2, s1);
2473 printf("\t start condition failed at %s\n", s2);
2477 printf("\t Device: %s\n", i->sysfs_path);
2479 printf("\t Where: %s\n", i->where);
2481 printf("\t What: %s\n", i->what);
2483 if (!strv_isempty(i->documentation)) {
2487 STRV_FOREACH(t, i->documentation) {
2489 printf("\t Docs: %s\n", *t);
2492 printf("\t %s\n", *t);
2497 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
2499 LIST_FOREACH(exec, p, i->exec) {
2503 /* Only show exited processes here */
2507 t = strv_join(p->argv, " ");
2508 printf("\t Process: %u %s=%s ", p->pid, p->name, strna(t));
2511 good = is_clean_exit_lsb(p->code, p->status);
2513 on = ansi_highlight_red(true);
2514 off = ansi_highlight_red(false);
2518 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
2520 if (p->code == CLD_EXITED) {
2523 printf("status=%i", p->status);
2525 c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD);
2530 printf("signal=%s", signal_to_string(p->status));
2532 printf(")%s\n", off);
2534 if (i->main_pid == p->pid &&
2535 i->start_timestamp == p->start_timestamp &&
2536 i->exit_timestamp == p->start_timestamp)
2537 /* Let's not show this twice */
2540 if (p->pid == i->control_pid)
2544 if (i->main_pid > 0 || i->control_pid > 0) {
2547 if (i->main_pid > 0) {
2548 printf("Main PID: %u", (unsigned) i->main_pid);
2552 get_process_comm(i->main_pid, &t);
2557 } else if (i->exit_code > 0) {
2558 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
2560 if (i->exit_code == CLD_EXITED) {
2563 printf("status=%i", i->exit_status);
2565 c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD);
2570 printf("signal=%s", signal_to_string(i->exit_status));
2575 if (i->main_pid > 0 && i->control_pid > 0)
2578 if (i->control_pid > 0) {
2581 printf(" Control: %u", (unsigned) i->control_pid);
2583 get_process_comm(i->control_pid, &t);
2594 printf("\t Status: \"%s\"\n", i->status_text);
2596 if (i->default_control_group) {
2599 printf("\t CGroup: %s\n", i->default_control_group);
2601 if (arg_transport != TRANSPORT_SSH) {
2611 if (i->main_pid > 0)
2612 extra[k++] = i->main_pid;
2614 if (i->control_pid > 0)
2615 extra[k++] = i->control_pid;
2617 show_cgroup_and_extra_by_spec(i->default_control_group, "\t\t ", c, false, arg_all, extra, k);
2621 if (i->id && arg_transport != TRANSPORT_SSH) {
2623 show_journal_by_unit(i->id, arg_output, 0, i->inactive_exit_timestamp_monotonic, arg_lines, arg_all, arg_follow);
2626 if (i->need_daemon_reload)
2627 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
2628 ansi_highlight_red(true),
2629 ansi_highlight_red(false),
2630 arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
2633 static void show_unit_help(UnitStatusInfo *i) {
2638 if (!i->documentation) {
2639 log_info("Documentation for %s not known.", i->id);
2643 STRV_FOREACH(p, i->documentation) {
2645 if (startswith(*p, "man:")) {
2648 char *page = NULL, *section = NULL;
2649 const char *args[4] = { "man", NULL, NULL, NULL };
2654 if ((*p)[k-1] == ')')
2655 e = strrchr(*p, '(');
2658 page = strndup((*p) + 4, e - *p - 4);
2660 log_error("Out of memory.");
2664 section = strndup(e + 1, *p + k - e - 2);
2667 log_error("Out of memory");
2678 log_error("Failed to fork: %m");
2686 execvp(args[0], (char**) args);
2687 log_error("Failed to execute man: %m");
2688 _exit(EXIT_FAILURE);
2694 wait_for_terminate(pid, NULL);
2696 log_info("Can't show %s.", *p);
2700 static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
2706 switch (dbus_message_iter_get_arg_type(iter)) {
2708 case DBUS_TYPE_STRING: {
2711 dbus_message_iter_get_basic(iter, &s);
2714 if (streq(name, "Id"))
2716 else if (streq(name, "LoadState"))
2718 else if (streq(name, "ActiveState"))
2719 i->active_state = s;
2720 else if (streq(name, "SubState"))
2722 else if (streq(name, "Description"))
2724 else if (streq(name, "FragmentPath"))
2725 i->fragment_path = s;
2726 else if (streq(name, "SourcePath"))
2728 else if (streq(name, "DefaultControlGroup"))
2729 i->default_control_group = s;
2730 else if (streq(name, "StatusText"))
2732 else if (streq(name, "SysFSPath"))
2734 else if (streq(name, "Where"))
2736 else if (streq(name, "What"))
2738 else if (streq(name, "Following"))
2740 else if (streq(name, "UnitFileState"))
2741 i->unit_file_state = s;
2742 else if (streq(name, "Result"))
2749 case DBUS_TYPE_BOOLEAN: {
2752 dbus_message_iter_get_basic(iter, &b);
2754 if (streq(name, "Accept"))
2756 else if (streq(name, "NeedDaemonReload"))
2757 i->need_daemon_reload = b;
2758 else if (streq(name, "ConditionResult"))
2759 i->condition_result = b;
2764 case DBUS_TYPE_UINT32: {
2767 dbus_message_iter_get_basic(iter, &u);
2769 if (streq(name, "MainPID")) {
2771 i->main_pid = (pid_t) u;
2774 } else if (streq(name, "ControlPID"))
2775 i->control_pid = (pid_t) u;
2776 else if (streq(name, "ExecMainPID")) {
2778 i->main_pid = (pid_t) u;
2779 } else if (streq(name, "NAccepted"))
2781 else if (streq(name, "NConnections"))
2782 i->n_connections = u;
2787 case DBUS_TYPE_INT32: {
2790 dbus_message_iter_get_basic(iter, &j);
2792 if (streq(name, "ExecMainCode"))
2793 i->exit_code = (int) j;
2794 else if (streq(name, "ExecMainStatus"))
2795 i->exit_status = (int) j;
2800 case DBUS_TYPE_UINT64: {
2803 dbus_message_iter_get_basic(iter, &u);
2805 if (streq(name, "ExecMainStartTimestamp"))
2806 i->start_timestamp = (usec_t) u;
2807 else if (streq(name, "ExecMainExitTimestamp"))
2808 i->exit_timestamp = (usec_t) u;
2809 else if (streq(name, "ActiveEnterTimestamp"))
2810 i->active_enter_timestamp = (usec_t) u;
2811 else if (streq(name, "InactiveEnterTimestamp"))
2812 i->inactive_enter_timestamp = (usec_t) u;
2813 else if (streq(name, "InactiveExitTimestamp"))
2814 i->inactive_exit_timestamp = (usec_t) u;
2815 else if (streq(name, "InactiveExitTimestampMonotonic"))
2816 i->inactive_exit_timestamp_monotonic = (usec_t) u;
2817 else if (streq(name, "ActiveExitTimestamp"))
2818 i->active_exit_timestamp = (usec_t) u;
2819 else if (streq(name, "ConditionTimestamp"))
2820 i->condition_timestamp = (usec_t) u;
2825 case DBUS_TYPE_ARRAY: {
2827 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
2828 startswith(name, "Exec")) {
2829 DBusMessageIter sub;
2831 dbus_message_iter_recurse(iter, &sub);
2832 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2833 ExecStatusInfo *info;
2836 if (!(info = new0(ExecStatusInfo, 1)))
2839 if (!(info->name = strdup(name))) {
2844 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
2849 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
2851 dbus_message_iter_next(&sub);
2853 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING &&
2854 streq(name, "Documentation")) {
2856 DBusMessageIter sub;
2858 dbus_message_iter_recurse(iter, &sub);
2859 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING) {
2863 dbus_message_iter_get_basic(&sub, &s);
2865 l = strv_append(i->documentation, s);
2869 strv_free(i->documentation);
2870 i->documentation = l;
2872 dbus_message_iter_next(&sub);
2879 case DBUS_TYPE_STRUCT: {
2881 if (streq(name, "LoadError")) {
2882 DBusMessageIter sub;
2883 const char *n, *message;
2886 dbus_message_iter_recurse(iter, &sub);
2888 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &n, true);
2892 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &message, false);
2896 if (!isempty(message))
2897 i->load_error = message;
2907 static int print_property(const char *name, DBusMessageIter *iter) {
2911 /* This is a low-level property printer, see
2912 * print_status_info() for the nicer output */
2914 if (arg_property && !strv_find(arg_property, name))
2917 switch (dbus_message_iter_get_arg_type(iter)) {
2919 case DBUS_TYPE_STRUCT: {
2920 DBusMessageIter sub;
2921 dbus_message_iter_recurse(iter, &sub);
2923 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
2926 dbus_message_iter_get_basic(&sub, &u);
2929 printf("%s=%u\n", name, (unsigned) u);
2931 printf("%s=\n", name);
2934 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
2937 dbus_message_iter_get_basic(&sub, &s);
2939 if (arg_all || s[0])
2940 printf("%s=%s\n", name, s);
2943 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "LoadError")) {
2944 const char *a = NULL, *b = NULL;
2946 if (bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &a, true) >= 0)
2947 bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &b, false);
2949 if (arg_all || !isempty(a) || !isempty(b))
2950 printf("%s=%s \"%s\"\n", name, strempty(a), strempty(b));
2958 case DBUS_TYPE_ARRAY:
2960 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "EnvironmentFiles")) {
2961 DBusMessageIter sub, sub2;
2963 dbus_message_iter_recurse(iter, &sub);
2964 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2968 dbus_message_iter_recurse(&sub, &sub2);
2970 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) >= 0 &&
2971 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, false) >= 0)
2972 printf("EnvironmentFile=%s (ignore_errors=%s)\n", path, yes_no(ignore));
2974 dbus_message_iter_next(&sub);
2979 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2980 DBusMessageIter sub, sub2;
2982 dbus_message_iter_recurse(iter, &sub);
2983 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2984 const char *type, *path;
2986 dbus_message_iter_recurse(&sub, &sub2);
2988 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2989 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2990 printf("%s=%s\n", type, path);
2992 dbus_message_iter_next(&sub);
2997 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2998 DBusMessageIter sub, sub2;
3000 dbus_message_iter_recurse(iter, &sub);
3001 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3003 uint64_t value, next_elapse;
3005 dbus_message_iter_recurse(&sub, &sub2);
3007 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
3008 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
3009 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
3010 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
3012 printf("%s={ value=%s ; next_elapse=%s }\n",
3014 format_timespan(timespan1, sizeof(timespan1), value),
3015 format_timespan(timespan2, sizeof(timespan2), next_elapse));
3018 dbus_message_iter_next(&sub);
3023 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "ControlGroupAttributes")) {
3024 DBusMessageIter sub, sub2;
3026 dbus_message_iter_recurse(iter, &sub);
3027 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3028 const char *controller, *attr, *value;
3030 dbus_message_iter_recurse(&sub, &sub2);
3032 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &controller, true) >= 0 &&
3033 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &attr, true) >= 0 &&
3034 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &value, false) >= 0) {
3036 printf("ControlGroupAttribute={ controller=%s ; attribute=%s ; value=\"%s\" }\n",
3042 dbus_message_iter_next(&sub);
3047 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
3048 DBusMessageIter sub;
3050 dbus_message_iter_recurse(iter, &sub);
3051 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3052 ExecStatusInfo info;
3055 if (exec_status_info_deserialize(&sub, &info) >= 0) {
3056 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
3059 t = strv_join(info.argv, " ");
3061 printf("%s={ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
3065 yes_no(info.ignore),
3066 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
3067 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
3068 (unsigned) info. pid,
3069 sigchld_code_to_string(info.code),
3071 info.code == CLD_EXITED ? "" : "/",
3072 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
3078 strv_free(info.argv);
3080 dbus_message_iter_next(&sub);
3089 if (generic_print_property(name, iter, arg_all) > 0)
3093 printf("%s=[unprintable]\n", name);
3098 static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
3099 DBusMessage *m = NULL, *reply = NULL;
3100 const char *interface = "";
3103 DBusMessageIter iter, sub, sub2, sub3;
3104 UnitStatusInfo info;
3112 dbus_error_init(&error);
3114 if (!(m = dbus_message_new_method_call(
3115 "org.freedesktop.systemd1",
3117 "org.freedesktop.DBus.Properties",
3119 log_error("Could not allocate message.");
3124 if (!dbus_message_append_args(m,
3125 DBUS_TYPE_STRING, &interface,
3126 DBUS_TYPE_INVALID)) {
3127 log_error("Could not append arguments to message.");
3132 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3133 log_error("Failed to issue method call: %s", bus_error_message(&error));
3138 if (!dbus_message_iter_init(reply, &iter) ||
3139 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
3140 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
3141 log_error("Failed to parse reply.");
3146 dbus_message_iter_recurse(&iter, &sub);
3153 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
3156 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
3157 log_error("Failed to parse reply.");
3162 dbus_message_iter_recurse(&sub, &sub2);
3164 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
3165 log_error("Failed to parse reply.");
3170 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
3171 log_error("Failed to parse reply.");
3176 dbus_message_iter_recurse(&sub2, &sub3);
3178 if (show_properties)
3179 r = print_property(name, &sub3);
3181 r = status_property(name, &sub3, &info);
3184 log_error("Failed to parse reply.");
3189 dbus_message_iter_next(&sub);
3194 if (!show_properties) {
3195 if (streq(verb, "help"))
3196 show_unit_help(&info);
3198 print_status_info(&info);
3201 strv_free(info.documentation);
3203 if (!streq_ptr(info.active_state, "active") &&
3204 !streq_ptr(info.active_state, "reloading") &&
3205 streq(verb, "status"))
3206 /* According to LSB: "program not running" */
3209 while ((p = info.exec)) {
3210 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
3211 exec_status_info_free(p);
3216 dbus_message_unref(m);
3219 dbus_message_unref(reply);
3221 dbus_error_free(&error);
3226 static int show_one_by_pid(const char *verb, DBusConnection *bus, uint32_t pid, bool *new_line) {
3227 DBusMessage *m = NULL, *reply = NULL;
3228 const char *path = NULL;
3232 dbus_error_init(&error);
3234 m = dbus_message_new_method_call(
3235 "org.freedesktop.systemd1",
3236 "/org/freedesktop/systemd1",
3237 "org.freedesktop.systemd1.Manager",
3240 log_error("Could not allocate message.");
3245 if (!dbus_message_append_args(m,
3246 DBUS_TYPE_UINT32, &pid,
3247 DBUS_TYPE_INVALID)) {
3248 log_error("Could not append arguments to message.");
3253 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3255 log_error("Failed to issue method call: %s", bus_error_message(&error));
3260 if (!dbus_message_get_args(reply, &error,
3261 DBUS_TYPE_OBJECT_PATH, &path,
3262 DBUS_TYPE_INVALID)) {
3263 log_error("Failed to parse reply: %s", bus_error_message(&error));
3268 r = show_one(verb, bus, path, false, new_line);
3272 dbus_message_unref(m);
3275 dbus_message_unref(reply);
3277 dbus_error_free(&error);
3282 static int show(DBusConnection *bus, char **args) {
3284 bool show_properties, new_line = false;
3290 show_properties = streq(args[0], "show");
3292 if (show_properties)
3293 pager_open_if_enabled();
3295 if (show_properties && strv_length(args) <= 1) {
3296 /* If not argument is specified inspect the manager
3299 return show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line);
3302 STRV_FOREACH(name, args+1) {
3305 if (safe_atou32(*name, &id) < 0) {
3307 /* Interpret as unit name */
3310 e = bus_path_escape(*name);
3313 p = strappend("/org/freedesktop/systemd1/unit/", e);
3318 r = show_one(args[0], bus, p, show_properties, &new_line);
3324 } else if (show_properties) {
3326 /* Interpret as job id */
3329 if (asprintf(&p, "/org/freedesktop/systemd1/job/%u", id) < 0)
3332 r = show_one(args[0], bus, p, show_properties, &new_line);
3340 /* Interpret as PID */
3342 r = show_one_by_pid(args[0], bus, id, &new_line);
3351 static int dump(DBusConnection *bus, char **args) {
3352 DBusMessage *m = NULL, *reply = NULL;
3357 dbus_error_init(&error);
3359 pager_open_if_enabled();
3361 if (!(m = dbus_message_new_method_call(
3362 "org.freedesktop.systemd1",
3363 "/org/freedesktop/systemd1",
3364 "org.freedesktop.systemd1.Manager",
3366 log_error("Could not allocate message.");
3370 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3371 log_error("Failed to issue method call: %s", bus_error_message(&error));
3376 if (!dbus_message_get_args(reply, &error,
3377 DBUS_TYPE_STRING, &text,
3378 DBUS_TYPE_INVALID)) {
3379 log_error("Failed to parse reply: %s", bus_error_message(&error));
3384 fputs(text, stdout);
3390 dbus_message_unref(m);
3393 dbus_message_unref(reply);
3395 dbus_error_free(&error);
3400 static int snapshot(DBusConnection *bus, char **args) {
3401 DBusMessage *m = NULL, *reply = NULL;
3404 const char *name = "", *path, *id;
3405 dbus_bool_t cleanup = FALSE;
3406 DBusMessageIter iter, sub;
3408 *interface = "org.freedesktop.systemd1.Unit",
3411 dbus_error_init(&error);
3413 if (!(m = dbus_message_new_method_call(
3414 "org.freedesktop.systemd1",
3415 "/org/freedesktop/systemd1",
3416 "org.freedesktop.systemd1.Manager",
3417 "CreateSnapshot"))) {
3418 log_error("Could not allocate message.");
3422 if (strv_length(args) > 1)
3425 if (!dbus_message_append_args(m,
3426 DBUS_TYPE_STRING, &name,
3427 DBUS_TYPE_BOOLEAN, &cleanup,
3428 DBUS_TYPE_INVALID)) {
3429 log_error("Could not append arguments to message.");
3434 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3435 log_error("Failed to issue method call: %s", bus_error_message(&error));
3440 if (!dbus_message_get_args(reply, &error,
3441 DBUS_TYPE_OBJECT_PATH, &path,
3442 DBUS_TYPE_INVALID)) {
3443 log_error("Failed to parse reply: %s", bus_error_message(&error));
3448 dbus_message_unref(m);
3449 if (!(m = dbus_message_new_method_call(
3450 "org.freedesktop.systemd1",
3452 "org.freedesktop.DBus.Properties",
3454 log_error("Could not allocate message.");
3458 if (!dbus_message_append_args(m,
3459 DBUS_TYPE_STRING, &interface,
3460 DBUS_TYPE_STRING, &property,
3461 DBUS_TYPE_INVALID)) {
3462 log_error("Could not append arguments to message.");
3467 dbus_message_unref(reply);
3468 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3469 log_error("Failed to issue method call: %s", bus_error_message(&error));
3474 if (!dbus_message_iter_init(reply, &iter) ||
3475 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3476 log_error("Failed to parse reply.");
3481 dbus_message_iter_recurse(&iter, &sub);
3483 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
3484 log_error("Failed to parse reply.");
3489 dbus_message_iter_get_basic(&sub, &id);
3497 dbus_message_unref(m);
3500 dbus_message_unref(reply);
3502 dbus_error_free(&error);
3507 static int delete_snapshot(DBusConnection *bus, char **args) {
3508 DBusMessage *m = NULL, *reply = NULL;
3516 dbus_error_init(&error);
3518 STRV_FOREACH(name, args+1) {
3519 const char *path = NULL;
3521 if (!(m = dbus_message_new_method_call(
3522 "org.freedesktop.systemd1",
3523 "/org/freedesktop/systemd1",
3524 "org.freedesktop.systemd1.Manager",
3526 log_error("Could not allocate message.");
3531 if (!dbus_message_append_args(m,
3532 DBUS_TYPE_STRING, name,
3533 DBUS_TYPE_INVALID)) {
3534 log_error("Could not append arguments to message.");
3539 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3540 log_error("Failed to issue method call: %s", bus_error_message(&error));
3545 if (!dbus_message_get_args(reply, &error,
3546 DBUS_TYPE_OBJECT_PATH, &path,
3547 DBUS_TYPE_INVALID)) {
3548 log_error("Failed to parse reply: %s", bus_error_message(&error));
3553 dbus_message_unref(m);
3554 if (!(m = dbus_message_new_method_call(
3555 "org.freedesktop.systemd1",
3557 "org.freedesktop.systemd1.Snapshot",
3559 log_error("Could not allocate message.");
3564 dbus_message_unref(reply);
3565 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3566 log_error("Failed to issue method call: %s", bus_error_message(&error));
3571 dbus_message_unref(m);
3572 dbus_message_unref(reply);
3580 dbus_message_unref(m);
3583 dbus_message_unref(reply);
3585 dbus_error_free(&error);
3590 static int daemon_reload(DBusConnection *bus, char **args) {
3591 DBusMessage *m = NULL, *reply = NULL;
3596 dbus_error_init(&error);
3598 if (arg_action == ACTION_RELOAD)
3600 else if (arg_action == ACTION_REEXEC)
3601 method = "Reexecute";
3603 assert(arg_action == ACTION_SYSTEMCTL);
3606 streq(args[0], "clear-jobs") ||
3607 streq(args[0], "cancel") ? "ClearJobs" :
3608 streq(args[0], "daemon-reexec") ? "Reexecute" :
3609 streq(args[0], "reset-failed") ? "ResetFailed" :
3610 streq(args[0], "halt") ? "Halt" :
3611 streq(args[0], "poweroff") ? "PowerOff" :
3612 streq(args[0], "reboot") ? "Reboot" :
3613 streq(args[0], "kexec") ? "KExec" :
3614 streq(args[0], "exit") ? "Exit" :
3615 /* "daemon-reload" */ "Reload";
3618 if (!(m = dbus_message_new_method_call(
3619 "org.freedesktop.systemd1",
3620 "/org/freedesktop/systemd1",
3621 "org.freedesktop.systemd1.Manager",
3623 log_error("Could not allocate message.");
3627 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3629 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
3630 /* There's always a fallback possible for
3631 * legacy actions. */
3636 if (streq(method, "Reexecute") && dbus_error_has_name(&error, DBUS_ERROR_NO_REPLY)) {
3637 /* On reexecution, we expect a disconnect, not
3643 log_error("Failed to issue method call: %s", bus_error_message(&error));
3652 dbus_message_unref(m);
3655 dbus_message_unref(reply);
3657 dbus_error_free(&error);
3662 static int reset_failed(DBusConnection *bus, char **args) {
3663 DBusMessage *m = NULL;
3669 dbus_error_init(&error);
3671 if (strv_length(args) <= 1)
3672 return daemon_reload(bus, args);
3674 STRV_FOREACH(name, args+1) {
3677 if (!(m = dbus_message_new_method_call(
3678 "org.freedesktop.systemd1",
3679 "/org/freedesktop/systemd1",
3680 "org.freedesktop.systemd1.Manager",
3681 "ResetFailedUnit"))) {
3682 log_error("Could not allocate message.");
3687 if (!dbus_message_append_args(m,
3688 DBUS_TYPE_STRING, name,
3689 DBUS_TYPE_INVALID)) {
3690 log_error("Could not append arguments to message.");
3695 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3696 log_error("Failed to issue method call: %s", bus_error_message(&error));
3701 dbus_message_unref(m);
3702 dbus_message_unref(reply);
3710 dbus_message_unref(m);
3712 dbus_error_free(&error);
3717 static int show_enviroment(DBusConnection *bus, char **args) {
3718 DBusMessage *m = NULL, *reply = NULL;
3720 DBusMessageIter iter, sub, sub2;
3723 *interface = "org.freedesktop.systemd1.Manager",
3724 *property = "Environment";
3726 dbus_error_init(&error);
3728 pager_open_if_enabled();
3730 if (!(m = dbus_message_new_method_call(
3731 "org.freedesktop.systemd1",
3732 "/org/freedesktop/systemd1",
3733 "org.freedesktop.DBus.Properties",
3735 log_error("Could not allocate message.");
3739 if (!dbus_message_append_args(m,
3740 DBUS_TYPE_STRING, &interface,
3741 DBUS_TYPE_STRING, &property,
3742 DBUS_TYPE_INVALID)) {
3743 log_error("Could not append arguments to message.");
3748 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3749 log_error("Failed to issue method call: %s", bus_error_message(&error));
3754 if (!dbus_message_iter_init(reply, &iter) ||
3755 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3756 log_error("Failed to parse reply.");
3761 dbus_message_iter_recurse(&iter, &sub);
3763 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3764 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3765 log_error("Failed to parse reply.");
3770 dbus_message_iter_recurse(&sub, &sub2);
3772 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3775 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3776 log_error("Failed to parse reply.");
3781 dbus_message_iter_get_basic(&sub2, &text);
3782 printf("%s\n", text);
3784 dbus_message_iter_next(&sub2);
3791 dbus_message_unref(m);
3794 dbus_message_unref(reply);
3796 dbus_error_free(&error);
3801 static int switch_root(DBusConnection *bus, char **args) {
3802 DBusMessage *m = NULL, *reply = NULL;
3804 const char *root, *init;
3808 dbus_error_init(&error);
3810 l = strv_length(args);
3811 if (l < 2 || l > 3) {
3812 log_error("Wrong number of arguments.");
3817 init = l >= 3 ? args[2] : "";
3819 m = dbus_message_new_method_call(
3820 "org.freedesktop.systemd1",
3821 "/org/freedesktop/systemd1",
3822 "org.freedesktop.systemd1.Manager",
3825 log_error("Could not allocate message.");
3829 if (!dbus_message_append_args(
3831 DBUS_TYPE_STRING, &root,
3832 DBUS_TYPE_STRING, &init,
3833 DBUS_TYPE_INVALID)) {
3834 log_error("Could not append arguments to message.");
3839 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3841 log_error("Failed to issue method call: %s", bus_error_message(&error));
3850 dbus_message_unref(m);
3853 dbus_message_unref(reply);
3855 dbus_error_free(&error);
3860 static int set_environment(DBusConnection *bus, char **args) {
3861 DBusMessage *m = NULL, *reply = NULL;
3865 DBusMessageIter iter, sub;
3868 dbus_error_init(&error);
3870 method = streq(args[0], "set-environment")
3872 : "UnsetEnvironment";
3874 if (!(m = dbus_message_new_method_call(
3875 "org.freedesktop.systemd1",
3876 "/org/freedesktop/systemd1",
3877 "org.freedesktop.systemd1.Manager",
3880 log_error("Could not allocate message.");
3884 dbus_message_iter_init_append(m, &iter);
3886 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
3887 log_error("Could not append arguments to message.");
3892 STRV_FOREACH(name, args+1)
3893 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, name)) {
3894 log_error("Could not append arguments to message.");
3899 if (!dbus_message_iter_close_container(&iter, &sub)) {
3900 log_error("Could not append arguments to message.");
3905 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3906 log_error("Failed to issue method call: %s", bus_error_message(&error));
3915 dbus_message_unref(m);
3918 dbus_message_unref(reply);
3920 dbus_error_free(&error);
3925 static int enable_sysv_units(char **args) {
3928 #if defined (HAVE_SYSV_COMPAT) && (defined(TARGET_FEDORA) || defined(TARGET_MANDRIVA) || defined(TARGET_SUSE) || defined(TARGET_MEEGO) || defined(TARGET_ALTLINUX) || defined(TARGET_MAGEIA))
3929 const char *verb = args[0];
3930 unsigned f = 1, t = 1;
3933 if (arg_scope != UNIT_FILE_SYSTEM)
3936 if (!streq(verb, "enable") &&
3937 !streq(verb, "disable") &&
3938 !streq(verb, "is-enabled"))
3941 /* Processes all SysV units, and reshuffles the array so that
3942 * afterwards only the native units remain */
3945 r = lookup_paths_init(&paths, MANAGER_SYSTEM, false, NULL, NULL, NULL);
3950 for (f = 1; args[f]; f++) {
3953 bool found_native = false, found_sysv;
3955 const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL };
3956 char **k, *l, *q = NULL;
3963 if (!endswith(name, ".service"))
3966 if (path_is_absolute(name))
3969 STRV_FOREACH(k, paths.unit_path) {
3972 if (!isempty(arg_root))
3973 asprintf(&p, "%s/%s/%s", arg_root, *k, name);
3975 asprintf(&p, "%s/%s", *k, name);
3978 log_error("No memory");
3983 found_native = access(p, F_OK) >= 0;
3994 if (!isempty(arg_root))
3995 asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name);
3997 asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name);
3999 log_error("No memory");
4004 p[strlen(p) - sizeof(".service") + 1] = 0;
4005 found_sysv = access(p, F_OK) >= 0;
4012 /* Mark this entry, so that we don't try enabling it as native unit */
4013 args[f] = (char*) "";
4015 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name);
4017 if (!isempty(arg_root))
4018 argv[c++] = q = strappend("--root=", arg_root);
4020 argv[c++] = path_get_file_name(p);
4022 streq(verb, "enable") ? "on" :
4023 streq(verb, "disable") ? "off" : "--level=5";
4026 l = strv_join((char**)argv, " ");
4028 log_error("No memory.");
4035 log_info("Executing %s", l);
4040 log_error("Failed to fork: %m");
4045 } else if (pid == 0) {
4048 execv(argv[0], (char**) argv);
4049 _exit(EXIT_FAILURE);
4055 j = wait_for_terminate(pid, &status);
4057 log_error("Failed to wait for child: %s", strerror(-r));
4062 if (status.si_code == CLD_EXITED) {
4063 if (streq(verb, "is-enabled")) {
4064 if (status.si_status == 0) {
4073 } else if (status.si_status != 0) {
4084 lookup_paths_free(&paths);
4086 /* Drop all SysV units */
4087 for (f = 1, t = 1; args[f]; f++) {
4089 if (isempty(args[f]))
4092 args[t++] = args[f];
4101 static int enable_unit(DBusConnection *bus, char **args) {
4102 const char *verb = args[0];
4103 UnitFileChange *changes = NULL;
4104 unsigned n_changes = 0, i;
4105 int carries_install_info = -1;
4106 DBusMessage *m = NULL, *reply = NULL;
4110 r = enable_sysv_units(args);
4117 dbus_error_init(&error);
4119 if (!bus || avoid_bus()) {
4120 if (streq(verb, "enable")) {
4121 r = unit_file_enable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4122 carries_install_info = r;
4123 } else if (streq(verb, "disable"))
4124 r = unit_file_disable(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
4125 else if (streq(verb, "reenable")) {
4126 r = unit_file_reenable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4127 carries_install_info = r;
4128 } else if (streq(verb, "link"))
4129 r = unit_file_link(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4130 else if (streq(verb, "preset")) {
4131 r = unit_file_preset(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4132 carries_install_info = r;
4133 } else if (streq(verb, "mask"))
4134 r = unit_file_mask(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4135 else if (streq(verb, "unmask"))
4136 r = unit_file_unmask(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
4138 assert_not_reached("Unknown verb");
4141 log_error("Operation failed: %s", strerror(-r));
4146 for (i = 0; i < n_changes; i++) {
4147 if (changes[i].type == UNIT_FILE_SYMLINK)
4148 log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path);
4150 log_info("rm '%s'", changes[i].path);
4156 bool send_force = true, expect_carries_install_info = false;
4158 DBusMessageIter iter, sub, sub2;
4160 if (streq(verb, "enable")) {
4161 method = "EnableUnitFiles";
4162 expect_carries_install_info = true;
4163 } else if (streq(verb, "disable")) {
4164 method = "DisableUnitFiles";
4166 } else if (streq(verb, "reenable")) {
4167 method = "ReenableUnitFiles";
4168 expect_carries_install_info = true;
4169 } else if (streq(verb, "link"))
4170 method = "LinkUnitFiles";
4171 else if (streq(verb, "preset")) {
4172 method = "PresetUnitFiles";
4173 expect_carries_install_info = true;
4174 } else if (streq(verb, "mask"))
4175 method = "MaskUnitFiles";
4176 else if (streq(verb, "unmask")) {
4177 method = "UnmaskUnitFiles";
4180 assert_not_reached("Unknown verb");
4182 m = dbus_message_new_method_call(
4183 "org.freedesktop.systemd1",
4184 "/org/freedesktop/systemd1",
4185 "org.freedesktop.systemd1.Manager",
4188 log_error("Out of memory");
4193 dbus_message_iter_init_append(m, &iter);
4195 r = bus_append_strv_iter(&iter, args+1);
4197 log_error("Failed to append unit files.");
4202 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &a)) {
4203 log_error("Failed to append runtime boolean.");
4211 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b)) {
4212 log_error("Failed to append force boolean.");
4218 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
4220 log_error("Failed to issue method call: %s", bus_error_message(&error));
4225 if (!dbus_message_iter_init(reply, &iter)) {
4226 log_error("Failed to initialize iterator.");
4230 if (expect_carries_install_info) {
4231 r = bus_iter_get_basic_and_next(&iter, DBUS_TYPE_BOOLEAN, &b, true);
4233 log_error("Failed to parse reply.");
4237 carries_install_info = b;
4240 if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
4241 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
4242 log_error("Failed to parse reply.");
4247 dbus_message_iter_recurse(&iter, &sub);
4248 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
4249 const char *type, *path, *source;
4251 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
4252 log_error("Failed to parse reply.");
4257 dbus_message_iter_recurse(&sub, &sub2);
4259 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
4260 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0 ||
4261 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &source, false) < 0) {
4262 log_error("Failed to parse reply.");
4268 if (streq(type, "symlink"))
4269 log_info("ln -s '%s' '%s'", source, path);
4271 log_info("rm '%s'", path);
4274 dbus_message_iter_next(&sub);
4277 /* Try to reload if enabeld */
4279 r = daemon_reload(bus, args);
4282 if (carries_install_info == 0)
4283 log_warning("Warning: unit files do not carry install information. No operation executed.");
4287 dbus_message_unref(m);
4290 dbus_message_unref(reply);
4292 unit_file_changes_free(changes, n_changes);
4294 dbus_error_free(&error);
4298 static int unit_is_enabled(DBusConnection *bus, char **args) {
4301 DBusMessage *m = NULL, *reply = NULL;
4305 dbus_error_init(&error);
4307 r = enable_sysv_units(args);
4313 if (!bus || avoid_bus()) {
4315 STRV_FOREACH(name, args+1) {
4316 UnitFileState state;
4318 state = unit_file_get_state(arg_scope, arg_root, *name);
4324 if (state == UNIT_FILE_ENABLED ||
4325 state == UNIT_FILE_ENABLED_RUNTIME ||
4326 state == UNIT_FILE_STATIC)
4330 puts(unit_file_state_to_string(state));
4334 STRV_FOREACH(name, args+1) {
4337 m = dbus_message_new_method_call(
4338 "org.freedesktop.systemd1",
4339 "/org/freedesktop/systemd1",
4340 "org.freedesktop.systemd1.Manager",
4341 "GetUnitFileState");
4343 log_error("Out of memory");
4348 if (!dbus_message_append_args(m,
4349 DBUS_TYPE_STRING, name,
4350 DBUS_TYPE_INVALID)) {
4351 log_error("Could not append arguments to message.");
4356 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
4358 log_error("Failed to issue method call: %s", bus_error_message(&error));
4363 if (!dbus_message_get_args(reply, &error,
4364 DBUS_TYPE_STRING, &s,
4365 DBUS_TYPE_INVALID)) {
4366 log_error("Failed to parse reply: %s", bus_error_message(&error));
4371 dbus_message_unref(m);
4372 dbus_message_unref(reply);
4375 if (streq(s, "enabled") ||
4376 streq(s, "enabled-runtime") ||
4385 r = enabled ? 0 : 1;
4389 dbus_message_unref(m);
4392 dbus_message_unref(reply);
4394 dbus_error_free(&error);
4398 static int systemctl_help(void) {
4400 pager_open_if_enabled();
4402 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
4403 "Query or send control commands to the systemd manager.\n\n"
4404 " -h --help Show this help\n"
4405 " --version Show package version\n"
4406 " -t --type=TYPE List only units of a particular type\n"
4407 " -p --property=NAME Show only properties by this name\n"
4408 " -a --all Show all units/properties, including dead/empty ones\n"
4409 " --failed Show only failed units\n"
4410 " --full Don't ellipsize unit names on output\n"
4411 " --fail When queueing a new job, fail if conflicting jobs are\n"
4413 " --ignore-dependencies\n"
4414 " When queueing a new job, ignore all its dependencies\n"
4415 " --kill-who=WHO Who to send signal to\n"
4416 " -s --signal=SIGNAL Which signal to send\n"
4417 " -H --host=[USER@]HOST\n"
4418 " Show information for remote host\n"
4419 " -P --privileged Acquire privileges before execution\n"
4420 " -q --quiet Suppress output\n"
4421 " --no-block Do not wait until operation finished\n"
4422 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4423 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
4425 " --no-legend Do not print a legend (column headers and hints)\n"
4426 " --no-pager Do not pipe output into a pager\n"
4427 " --no-ask-password\n"
4428 " Do not ask for system passwords\n"
4429 " --order When generating graph for dot, show only order\n"
4430 " --require When generating graph for dot, show only requirement\n"
4431 " --system Connect to system manager\n"
4432 " --user Connect to user service manager\n"
4433 " --global Enable/disable unit files globally\n"
4434 " -f --force When enabling unit files, override existing symlinks\n"
4435 " When shutting down, execute action immediately\n"
4436 " --root=PATH Enable unit files in the specified root directory\n"
4437 " --runtime Enable unit files only temporarily until next reboot\n"
4438 " -n --lines=INTEGER Journal entries to show\n"
4439 " --follow Follow journal\n"
4440 " -o --output=STRING Change journal output mode (short, short-monotonic,\n"
4441 " verbose, export, json, cat)\n\n"
4443 " list-units List loaded units\n"
4444 " start [NAME...] Start (activate) one or more units\n"
4445 " stop [NAME...] Stop (deactivate) one or more units\n"
4446 " reload [NAME...] Reload one or more units\n"
4447 " restart [NAME...] Start or restart one or more units\n"
4448 " try-restart [NAME...] Restart one or more units if active\n"
4449 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
4450 " otherwise start or restart\n"
4451 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
4452 " otherwise restart if active\n"
4453 " isolate [NAME] Start one unit and stop all others\n"
4454 " kill [NAME...] Send signal to processes of a unit\n"
4455 " is-active [NAME...] Check whether units are active\n"
4456 " status [NAME...|PID...] Show runtime status of one or more units\n"
4457 " show [NAME...|JOB...] Show properties of one or more\n"
4458 " units/jobs or the manager\n"
4459 " help [NAME...|PID...] Show manual for one or more units\n"
4460 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4462 " load [NAME...] Load one or more units\n\n"
4463 "Unit File Commands:\n"
4464 " list-unit-files List installed unit files\n"
4465 " enable [NAME...] Enable one or more unit files\n"
4466 " disable [NAME...] Disable one or more unit files\n"
4467 " reenable [NAME...] Reenable one or more unit files\n"
4468 " preset [NAME...] Enable/disable one or more unit files\n"
4469 " based on preset configuration\n"
4470 " mask [NAME...] Mask one or more units\n"
4471 " unmask [NAME...] Unmask one or more units\n"
4472 " link [PATH...] Link one or more units files into\n"
4473 " the search path\n"
4474 " is-enabled [NAME...] Check whether unit files are enabled\n\n"
4476 " list-jobs List jobs\n"
4477 " cancel [JOB...] Cancel all, one, or more jobs\n\n"
4478 "Status Commands:\n"
4479 " dump Dump server status\n"
4480 " dot Dump dependency graph for dot(1)\n\n"
4481 "Snapshot Commands:\n"
4482 " snapshot [NAME] Create a snapshot\n"
4483 " delete [NAME...] Remove one or more snapshots\n\n"
4484 "Environment Commands:\n"
4485 " show-environment Dump environment\n"
4486 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
4487 " unset-environment [NAME...] Unset one or more environment variables\n\n"
4488 "Manager Lifecycle Commands:\n"
4489 " daemon-reload Reload systemd manager configuration\n"
4490 " daemon-reexec Reexecute systemd manager\n\n"
4491 "System Commands:\n"
4492 " default Enter system default mode\n"
4493 " rescue Enter system rescue mode\n"
4494 " emergency Enter system emergency mode\n"
4495 " halt Shut down and halt the system\n"
4496 " poweroff Shut down and power-off the system\n"
4497 " reboot Shut down and reboot the system\n"
4498 " kexec Shut down and reboot the system with kexec\n"
4499 " exit Request user instance exit\n"
4500 " switch-root [ROOT] [INIT] Change to a different root file system\n"
4501 " suspend Suspend the system\n"
4502 " hibernate Hibernate the system\n",
4503 program_invocation_short_name);
4508 static int halt_help(void) {
4510 printf("%s [OPTIONS...]\n\n"
4511 "%s the system.\n\n"
4512 " --help Show this help\n"
4513 " --halt Halt the machine\n"
4514 " -p --poweroff Switch off the machine\n"
4515 " --reboot Reboot the machine\n"
4516 " -f --force Force immediate halt/power-off/reboot\n"
4517 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
4518 " -d --no-wtmp Don't write wtmp record\n"
4519 " -n --no-sync Don't sync before halt/power-off/reboot\n"
4520 " --no-wall Don't send wall message before halt/power-off/reboot\n",
4521 program_invocation_short_name,
4522 arg_action == ACTION_REBOOT ? "Reboot" :
4523 arg_action == ACTION_POWEROFF ? "Power off" :
4529 static int shutdown_help(void) {
4531 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
4532 "Shut down the system.\n\n"
4533 " --help Show this help\n"
4534 " -H --halt Halt the machine\n"
4535 " -P --poweroff Power-off the machine\n"
4536 " -r --reboot Reboot the machine\n"
4537 " -h Equivalent to --poweroff, overridden by --halt\n"
4538 " -k Don't halt/power-off/reboot, just send warnings\n"
4539 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4540 " -c Cancel a pending shutdown\n",
4541 program_invocation_short_name);
4546 static int telinit_help(void) {
4548 printf("%s [OPTIONS...] {COMMAND}\n\n"
4549 "Send control commands to the init daemon.\n\n"
4550 " --help Show this help\n"
4551 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
4553 " 0 Power-off the machine\n"
4554 " 6 Reboot the machine\n"
4555 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4556 " 1, s, S Enter rescue mode\n"
4557 " q, Q Reload init daemon configuration\n"
4558 " u, U Reexecute init daemon\n",
4559 program_invocation_short_name);
4564 static int runlevel_help(void) {
4566 printf("%s [OPTIONS...]\n\n"
4567 "Prints the previous and current runlevel of the init system.\n\n"
4568 " --help Show this help\n",
4569 program_invocation_short_name);
4574 static int systemctl_parse_argv(int argc, char *argv[]) {
4578 ARG_IGNORE_DEPENDENCIES,
4594 ARG_NO_ASK_PASSWORD,
4601 static const struct option options[] = {
4602 { "help", no_argument, NULL, 'h' },
4603 { "version", no_argument, NULL, ARG_VERSION },
4604 { "type", required_argument, NULL, 't' },
4605 { "property", required_argument, NULL, 'p' },
4606 { "all", no_argument, NULL, 'a' },
4607 { "failed", no_argument, NULL, ARG_FAILED },
4608 { "full", no_argument, NULL, ARG_FULL },
4609 { "fail", no_argument, NULL, ARG_FAIL },
4610 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES },
4611 { "user", no_argument, NULL, ARG_USER },
4612 { "system", no_argument, NULL, ARG_SYSTEM },
4613 { "global", no_argument, NULL, ARG_GLOBAL },
4614 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4615 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
4616 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
4617 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4618 { "quiet", no_argument, NULL, 'q' },
4619 { "order", no_argument, NULL, ARG_ORDER },
4620 { "require", no_argument, NULL, ARG_REQUIRE },
4621 { "root", required_argument, NULL, ARG_ROOT },
4622 { "force", no_argument, NULL, ARG_FORCE },
4623 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
4624 { "kill-mode", required_argument, NULL, ARG_KILL_MODE }, /* undocumented on purpose */
4625 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4626 { "signal", required_argument, NULL, 's' },
4627 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
4628 { "host", required_argument, NULL, 'H' },
4629 { "privileged",no_argument, NULL, 'P' },
4630 { "runtime", no_argument, NULL, ARG_RUNTIME },
4631 { "lines", required_argument, NULL, 'n' },
4632 { "follow", no_argument, NULL, ARG_FOLLOW },
4633 { "output", required_argument, NULL, 'o' },
4634 { NULL, 0, NULL, 0 }
4642 while ((c = getopt_long(argc, argv, "ht:p:aqfs:H:Pn:o:", options, NULL)) >= 0) {
4651 puts(PACKAGE_STRING);
4653 puts(SYSTEMD_FEATURES);
4663 if (!(l = strv_append(arg_property, optarg)))
4666 strv_free(arg_property);
4669 /* If the user asked for a particular
4670 * property, show it to him, even if it is
4681 arg_job_mode = "fail";
4684 case ARG_IGNORE_DEPENDENCIES:
4685 arg_job_mode = "ignore-dependencies";
4689 arg_scope = UNIT_FILE_USER;
4693 arg_scope = UNIT_FILE_SYSTEM;
4697 arg_scope = UNIT_FILE_GLOBAL;
4701 arg_no_block = true;
4705 arg_no_legend = true;
4709 arg_no_pager = true;
4717 arg_dot = DOT_ORDER;
4721 arg_dot = DOT_REQUIRE;
4749 /* -f is short for both --follow and --force! */
4755 arg_no_reload = true;
4759 arg_kill_who = optarg;
4763 arg_kill_mode = optarg;
4767 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
4768 log_error("Failed to parse signal string %s.", optarg);
4773 case ARG_NO_ASK_PASSWORD:
4774 arg_ask_password = false;
4778 arg_transport = TRANSPORT_POLKIT;
4782 arg_transport = TRANSPORT_SSH;
4791 if (safe_atou(optarg, &arg_lines) < 0) {
4792 log_error("Failed to parse lines '%s'", optarg);
4798 arg_output = output_mode_from_string(optarg);
4799 if (arg_output < 0) {
4800 log_error("Unknown output '%s'.", optarg);
4809 log_error("Unknown option code %c", c);
4814 if (arg_transport != TRANSPORT_NORMAL && arg_scope != UNIT_FILE_SYSTEM) {
4815 log_error("Cannot access user instance remotely.");
4822 static int halt_parse_argv(int argc, char *argv[]) {
4831 static const struct option options[] = {
4832 { "help", no_argument, NULL, ARG_HELP },
4833 { "halt", no_argument, NULL, ARG_HALT },
4834 { "poweroff", no_argument, NULL, 'p' },
4835 { "reboot", no_argument, NULL, ARG_REBOOT },
4836 { "force", no_argument, NULL, 'f' },
4837 { "wtmp-only", no_argument, NULL, 'w' },
4838 { "no-wtmp", no_argument, NULL, 'd' },
4839 { "no-sync", no_argument, NULL, 'n' },
4840 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4841 { NULL, 0, NULL, 0 }
4849 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4850 if (runlevel == '0' || runlevel == '6')
4853 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4861 arg_action = ACTION_HALT;
4865 if (arg_action != ACTION_REBOOT)
4866 arg_action = ACTION_POWEROFF;
4870 arg_action = ACTION_REBOOT;
4895 /* Compatibility nops */
4902 log_error("Unknown option code %c", c);
4907 if (optind < argc) {
4908 log_error("Too many arguments.");
4915 static int parse_time_spec(const char *t, usec_t *_u) {
4919 if (streq(t, "now"))
4921 else if (!strchr(t, ':')) {
4924 if (safe_atou64(t, &u) < 0)
4927 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4936 hour = strtol(t, &e, 10);
4937 if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
4940 minute = strtol(e+1, &e, 10);
4941 if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
4944 n = now(CLOCK_REALTIME);
4945 s = (time_t) (n / USEC_PER_SEC);
4948 assert_se(localtime_r(&s, &tm));
4950 tm.tm_hour = (int) hour;
4951 tm.tm_min = (int) minute;
4954 assert_se(s = mktime(&tm));
4956 *_u = (usec_t) s * USEC_PER_SEC;
4959 *_u += USEC_PER_DAY;
4965 static int shutdown_parse_argv(int argc, char *argv[]) {
4972 static const struct option options[] = {
4973 { "help", no_argument, NULL, ARG_HELP },
4974 { "halt", no_argument, NULL, 'H' },
4975 { "poweroff", no_argument, NULL, 'P' },
4976 { "reboot", no_argument, NULL, 'r' },
4977 { "kexec", no_argument, NULL, 'K' }, /* not documented extension */
4978 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4979 { NULL, 0, NULL, 0 }
4987 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
4995 arg_action = ACTION_HALT;
4999 arg_action = ACTION_POWEROFF;
5004 arg_action = ACTION_KEXEC;
5006 arg_action = ACTION_REBOOT;
5010 arg_action = ACTION_KEXEC;
5014 if (arg_action != ACTION_HALT)
5015 arg_action = ACTION_POWEROFF;
5028 /* Compatibility nops */
5032 arg_action = ACTION_CANCEL_SHUTDOWN;
5039 log_error("Unknown option code %c", c);
5044 if (argc > optind) {
5045 r = parse_time_spec(argv[optind], &arg_when);
5047 log_error("Failed to parse time specification: %s", argv[optind]);
5051 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
5053 /* We skip the time argument */
5054 if (argc > optind + 1)
5055 arg_wall = argv + optind + 1;
5062 static int telinit_parse_argv(int argc, char *argv[]) {
5069 static const struct option options[] = {
5070 { "help", no_argument, NULL, ARG_HELP },
5071 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5072 { NULL, 0, NULL, 0 }
5075 static const struct {
5079 { '0', ACTION_POWEROFF },
5080 { '6', ACTION_REBOOT },
5081 { '1', ACTION_RESCUE },
5082 { '2', ACTION_RUNLEVEL2 },
5083 { '3', ACTION_RUNLEVEL3 },
5084 { '4', ACTION_RUNLEVEL4 },
5085 { '5', ACTION_RUNLEVEL5 },
5086 { 's', ACTION_RESCUE },
5087 { 'S', ACTION_RESCUE },
5088 { 'q', ACTION_RELOAD },
5089 { 'Q', ACTION_RELOAD },
5090 { 'u', ACTION_REEXEC },
5091 { 'U', ACTION_REEXEC }
5100 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5115 log_error("Unknown option code %c", c);
5120 if (optind >= argc) {
5125 if (optind + 1 < argc) {
5126 log_error("Too many arguments.");
5130 if (strlen(argv[optind]) != 1) {
5131 log_error("Expected single character argument.");
5135 for (i = 0; i < ELEMENTSOF(table); i++)
5136 if (table[i].from == argv[optind][0])
5139 if (i >= ELEMENTSOF(table)) {
5140 log_error("Unknown command %s.", argv[optind]);
5144 arg_action = table[i].to;
5151 static int runlevel_parse_argv(int argc, char *argv[]) {
5157 static const struct option options[] = {
5158 { "help", no_argument, NULL, ARG_HELP },
5159 { NULL, 0, NULL, 0 }
5167 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5178 log_error("Unknown option code %c", c);
5183 if (optind < argc) {
5184 log_error("Too many arguments.");
5191 static int parse_argv(int argc, char *argv[]) {
5195 if (program_invocation_short_name) {
5197 if (strstr(program_invocation_short_name, "halt")) {
5198 arg_action = ACTION_HALT;
5199 return halt_parse_argv(argc, argv);
5200 } else if (strstr(program_invocation_short_name, "poweroff")) {
5201 arg_action = ACTION_POWEROFF;
5202 return halt_parse_argv(argc, argv);
5203 } else if (strstr(program_invocation_short_name, "reboot")) {
5205 arg_action = ACTION_KEXEC;
5207 arg_action = ACTION_REBOOT;
5208 return halt_parse_argv(argc, argv);
5209 } else if (strstr(program_invocation_short_name, "shutdown")) {
5210 arg_action = ACTION_POWEROFF;
5211 return shutdown_parse_argv(argc, argv);
5212 } else if (strstr(program_invocation_short_name, "init")) {
5214 if (sd_booted() > 0) {
5215 arg_action = ACTION_INVALID;
5216 return telinit_parse_argv(argc, argv);
5218 /* Hmm, so some other init system is
5219 * running, we need to forward this
5220 * request to it. For now we simply
5221 * guess that it is Upstart. */
5223 execv("/lib/upstart/telinit", argv);
5225 log_error("Couldn't find an alternative telinit implementation to spawn.");
5229 } else if (strstr(program_invocation_short_name, "runlevel")) {
5230 arg_action = ACTION_RUNLEVEL;
5231 return runlevel_parse_argv(argc, argv);
5235 arg_action = ACTION_SYSTEMCTL;
5236 return systemctl_parse_argv(argc, argv);
5239 static int action_to_runlevel(void) {
5241 static const char table[_ACTION_MAX] = {
5242 [ACTION_HALT] = '0',
5243 [ACTION_POWEROFF] = '0',
5244 [ACTION_REBOOT] = '6',
5245 [ACTION_RUNLEVEL2] = '2',
5246 [ACTION_RUNLEVEL3] = '3',
5247 [ACTION_RUNLEVEL4] = '4',
5248 [ACTION_RUNLEVEL5] = '5',
5249 [ACTION_RESCUE] = '1'
5252 assert(arg_action < _ACTION_MAX);
5254 return table[arg_action];
5257 static int talk_upstart(void) {
5258 DBusMessage *m = NULL, *reply = NULL;
5260 int previous, rl, r;
5262 env1_buf[] = "RUNLEVEL=X",
5263 env2_buf[] = "PREVLEVEL=X";
5264 char *env1 = env1_buf, *env2 = env2_buf;
5265 const char *emit = "runlevel";
5266 dbus_bool_t b_false = FALSE;
5267 DBusMessageIter iter, sub;
5268 DBusConnection *bus;
5270 dbus_error_init(&error);
5272 if (!(rl = action_to_runlevel()))
5275 if (utmp_get_runlevel(&previous, NULL) < 0)
5278 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
5279 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
5284 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
5289 if ((r = bus_check_peercred(bus)) < 0) {
5290 log_error("Failed to verify owner of bus.");
5294 if (!(m = dbus_message_new_method_call(
5295 "com.ubuntu.Upstart",
5296 "/com/ubuntu/Upstart",
5297 "com.ubuntu.Upstart0_6",
5300 log_error("Could not allocate message.");
5305 dbus_message_iter_init_append(m, &iter);
5307 env1_buf[sizeof(env1_buf)-2] = rl;
5308 env2_buf[sizeof(env2_buf)-2] = previous;
5310 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
5311 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
5312 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
5313 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
5314 !dbus_message_iter_close_container(&iter, &sub) ||
5315 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
5316 log_error("Could not append arguments to message.");
5321 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
5323 if (error_is_no_service(&error)) {
5328 log_error("Failed to issue method call: %s", bus_error_message(&error));
5337 dbus_message_unref(m);
5340 dbus_message_unref(reply);
5343 dbus_connection_flush(bus);
5344 dbus_connection_close(bus);
5345 dbus_connection_unref(bus);
5348 dbus_error_free(&error);
5353 static int talk_initctl(void) {
5354 struct init_request request;
5358 if (!(rl = action_to_runlevel()))
5362 request.magic = INIT_MAGIC;
5363 request.sleeptime = 0;
5364 request.cmd = INIT_CMD_RUNLVL;
5365 request.runlevel = rl;
5367 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
5369 if (errno == ENOENT)
5372 log_error("Failed to open "INIT_FIFO": %m");
5377 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
5378 close_nointr_nofail(fd);
5381 log_error("Failed to write to "INIT_FIFO": %m");
5382 return errno ? -errno : -EIO;
5388 static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
5390 static const struct {
5398 int (* const dispatch)(DBusConnection *bus, char **args);
5400 { "list-units", LESS, 1, list_units },
5401 { "list-unit-files", EQUAL, 1, list_unit_files },
5402 { "list-jobs", EQUAL, 1, list_jobs },
5403 { "clear-jobs", EQUAL, 1, daemon_reload },
5404 { "load", MORE, 2, load_unit },
5405 { "cancel", MORE, 2, cancel_job },
5406 { "start", MORE, 2, start_unit },
5407 { "stop", MORE, 2, start_unit },
5408 { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5409 { "reload", MORE, 2, start_unit },
5410 { "restart", MORE, 2, start_unit },
5411 { "try-restart", MORE, 2, start_unit },
5412 { "reload-or-restart", MORE, 2, start_unit },
5413 { "reload-or-try-restart", MORE, 2, start_unit },
5414 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
5415 { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5416 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
5417 { "isolate", EQUAL, 2, start_unit },
5418 { "kill", MORE, 2, kill_unit },
5419 { "is-active", MORE, 2, check_unit },
5420 { "check", MORE, 2, check_unit },
5421 { "show", MORE, 1, show },
5422 { "status", MORE, 2, show },
5423 { "help", MORE, 2, show },
5424 { "dump", EQUAL, 1, dump },
5425 { "dot", EQUAL, 1, dot },
5426 { "snapshot", LESS, 2, snapshot },
5427 { "delete", MORE, 2, delete_snapshot },
5428 { "daemon-reload", EQUAL, 1, daemon_reload },
5429 { "daemon-reexec", EQUAL, 1, daemon_reload },
5430 { "show-environment", EQUAL, 1, show_enviroment },
5431 { "set-environment", MORE, 2, set_environment },
5432 { "unset-environment", MORE, 2, set_environment },
5433 { "halt", EQUAL, 1, start_special },
5434 { "poweroff", EQUAL, 1, start_special },
5435 { "reboot", EQUAL, 1, start_special },
5436 { "kexec", EQUAL, 1, start_special },
5437 { "suspend", EQUAL, 1, start_special },
5438 { "hibernate", EQUAL, 1, start_special },
5439 { "default", EQUAL, 1, start_special },
5440 { "rescue", EQUAL, 1, start_special },
5441 { "emergency", EQUAL, 1, start_special },
5442 { "exit", EQUAL, 1, start_special },
5443 { "reset-failed", MORE, 1, reset_failed },
5444 { "enable", MORE, 2, enable_unit },
5445 { "disable", MORE, 2, enable_unit },
5446 { "is-enabled", MORE, 2, unit_is_enabled },
5447 { "reenable", MORE, 2, enable_unit },
5448 { "preset", MORE, 2, enable_unit },
5449 { "mask", MORE, 2, enable_unit },
5450 { "unmask", MORE, 2, enable_unit },
5451 { "link", MORE, 2, enable_unit },
5452 { "switch-root", MORE, 2, switch_root },
5462 left = argc - optind;
5465 /* Special rule: no arguments means "list-units" */
5468 if (streq(argv[optind], "help") && !argv[optind+1]) {
5469 log_error("This command expects one or more "
5470 "unit names. Did you mean --help?");
5474 for (i = 0; i < ELEMENTSOF(verbs); i++)
5475 if (streq(argv[optind], verbs[i].verb))
5478 if (i >= ELEMENTSOF(verbs)) {
5479 log_error("Unknown operation %s", argv[optind]);
5484 switch (verbs[i].argc_cmp) {
5487 if (left != verbs[i].argc) {
5488 log_error("Invalid number of arguments.");
5495 if (left < verbs[i].argc) {
5496 log_error("Too few arguments.");
5503 if (left > verbs[i].argc) {
5504 log_error("Too many arguments.");
5511 assert_not_reached("Unknown comparison operator.");
5514 /* Require a bus connection for all operations but
5516 if (!streq(verbs[i].verb, "enable") &&
5517 !streq(verbs[i].verb, "disable") &&
5518 !streq(verbs[i].verb, "is-enabled") &&
5519 !streq(verbs[i].verb, "list-unit-files") &&
5520 !streq(verbs[i].verb, "reenable") &&
5521 !streq(verbs[i].verb, "preset") &&
5522 !streq(verbs[i].verb, "mask") &&
5523 !streq(verbs[i].verb, "unmask") &&
5524 !streq(verbs[i].verb, "link")) {
5526 if (running_in_chroot() > 0) {
5527 log_info("Running in chroot, ignoring request.");
5531 if (((!streq(verbs[i].verb, "reboot") &&
5532 !streq(verbs[i].verb, "halt") &&
5533 !streq(verbs[i].verb, "poweroff")) || arg_force <= 0) && !bus) {
5534 log_error("Failed to get D-Bus connection: %s",
5535 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5541 if (!bus && !avoid_bus()) {
5542 log_error("Failed to get D-Bus connection: %s",
5543 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5548 return verbs[i].dispatch(bus, argv + optind);
5551 static int send_shutdownd(usec_t t, char mode, bool dry_run, bool warn, const char *message) {
5553 struct msghdr msghdr;
5554 struct iovec iovec[2];
5555 union sockaddr_union sockaddr;
5556 struct sd_shutdown_command c;
5558 fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
5565 c.dry_run = dry_run;
5569 sockaddr.sa.sa_family = AF_UNIX;
5570 strncpy(sockaddr.un.sun_path, "/run/systemd/shutdownd", sizeof(sockaddr.un.sun_path));
5573 msghdr.msg_name = &sockaddr;
5574 msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + sizeof("/run/systemd/shutdownd") - 1;
5577 iovec[0].iov_base = (char*) &c;
5578 iovec[0].iov_len = offsetof(struct sd_shutdown_command, wall_message);
5580 if (isempty(message))
5581 msghdr.msg_iovlen = 1;
5583 iovec[1].iov_base = (char*) message;
5584 iovec[1].iov_len = strlen(message);
5585 msghdr.msg_iovlen = 2;
5587 msghdr.msg_iov = iovec;
5589 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
5590 close_nointr_nofail(fd);
5594 close_nointr_nofail(fd);
5598 static int reload_with_fallback(DBusConnection *bus) {
5601 /* First, try systemd via D-Bus. */
5602 if (daemon_reload(bus, NULL) >= 0)
5606 /* Nothing else worked, so let's try signals */
5607 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5609 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5610 log_error("kill() failed: %m");
5617 static int start_with_fallback(DBusConnection *bus) {
5620 /* First, try systemd via D-Bus. */
5621 if (start_unit(bus, NULL) >= 0)
5625 /* Hmm, talking to systemd via D-Bus didn't work. Then
5626 * let's try to talk to Upstart via D-Bus. */
5627 if (talk_upstart() > 0)
5630 /* Nothing else worked, so let's try
5632 if (talk_initctl() > 0)
5635 log_error("Failed to talk to init daemon.");
5639 warn_wall(arg_action);
5643 static void halt_now(enum action a) {
5645 /* Make sure C-A-D is handled by the kernel from this
5647 reboot(RB_ENABLE_CAD);
5652 log_info("Halting.");
5653 reboot(RB_HALT_SYSTEM);
5656 case ACTION_POWEROFF:
5657 log_info("Powering off.");
5658 reboot(RB_POWER_OFF);
5662 log_info("Rebooting.");
5663 reboot(RB_AUTOBOOT);
5667 assert_not_reached("Unknown halt action.");
5670 assert_not_reached("Uh? This shouldn't happen.");
5673 static int halt_main(DBusConnection *bus) {
5676 if (geteuid() != 0) {
5677 /* Try logind if we are a normal user and no special
5678 * mode applies. Maybe PolicyKit allows us to shutdown
5681 if (arg_when <= 0 &&
5684 (arg_action == ACTION_POWEROFF ||
5685 arg_action == ACTION_REBOOT)) {
5686 r = reboot_with_logind(bus, arg_action);
5691 log_error("Must be root.");
5698 m = strv_join(arg_wall, " ");
5699 r = send_shutdownd(arg_when,
5700 arg_action == ACTION_HALT ? 'H' :
5701 arg_action == ACTION_POWEROFF ? 'P' :
5702 arg_action == ACTION_KEXEC ? 'K' :
5710 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
5712 char date[FORMAT_TIMESTAMP_MAX];
5714 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
5715 format_timestamp(date, sizeof(date), arg_when));
5720 if (!arg_dry && !arg_force)
5721 return start_with_fallback(bus);
5724 if (sd_booted() > 0)
5725 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
5727 r = utmp_put_shutdown();
5729 log_warning("Failed to write utmp record: %s", strerror(-r));
5739 halt_now(arg_action);
5740 /* We should never reach this. */
5744 static int runlevel_main(void) {
5745 int r, runlevel, previous;
5747 r = utmp_get_runlevel(&runlevel, &previous);
5754 previous <= 0 ? 'N' : previous,
5755 runlevel <= 0 ? 'N' : runlevel);
5760 int main(int argc, char*argv[]) {
5761 int r, retval = EXIT_FAILURE;
5762 DBusConnection *bus = NULL;
5765 dbus_error_init(&error);
5767 log_parse_environment();
5770 r = parse_argv(argc, argv);
5774 retval = EXIT_SUCCESS;
5778 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5779 * let's shortcut this */
5780 if (arg_action == ACTION_RUNLEVEL) {
5781 r = runlevel_main();
5782 retval = r < 0 ? EXIT_FAILURE : r;
5786 if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
5787 log_info("Running in chroot, ignoring request.");
5793 if (arg_transport == TRANSPORT_NORMAL)
5794 bus_connect(arg_scope == UNIT_FILE_SYSTEM ? DBUS_BUS_SYSTEM : DBUS_BUS_SESSION, &bus, &private_bus, &error);
5795 else if (arg_transport == TRANSPORT_POLKIT) {
5796 bus_connect_system_polkit(&bus, &error);
5797 private_bus = false;
5798 } else if (arg_transport == TRANSPORT_SSH) {
5799 bus_connect_system_ssh(NULL, arg_host, &bus, &error);
5800 private_bus = false;
5802 assert_not_reached("Uh, invalid transport...");
5805 switch (arg_action) {
5807 case ACTION_SYSTEMCTL:
5808 r = systemctl_main(bus, argc, argv, &error);
5812 case ACTION_POWEROFF:
5818 case ACTION_RUNLEVEL2:
5819 case ACTION_RUNLEVEL3:
5820 case ACTION_RUNLEVEL4:
5821 case ACTION_RUNLEVEL5:
5823 case ACTION_EMERGENCY:
5824 case ACTION_DEFAULT:
5825 r = start_with_fallback(bus);
5830 r = reload_with_fallback(bus);
5833 case ACTION_CANCEL_SHUTDOWN:
5834 r = send_shutdownd(0, 0, false, false, NULL);
5837 case ACTION_INVALID:
5838 case ACTION_RUNLEVEL:
5840 assert_not_reached("Unknown action");
5843 retval = r < 0 ? EXIT_FAILURE : r;
5847 dbus_connection_flush(bus);
5848 dbus_connection_close(bus);
5849 dbus_connection_unref(bus);
5852 dbus_error_free(&error);
5856 strv_free(arg_property);
5859 ask_password_agent_close();
5860 polkit_agent_close();