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_listening_sockets(
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 if (!endswith(service_trigger, ".socket"))
1754 r = check_one_unit(bus, service_trigger, true);
1758 if (print_warning_label) {
1759 log_warning("There are listening sockets associated with %s :", unit_name);
1760 print_warning_label = false;
1762 log_warning("%s", service_trigger);
1765 dbus_message_iter_recurse(&iter, &sub);
1770 dbus_message_unref(m);
1773 dbus_message_unref(reply);
1775 dbus_error_free(&error);
1780 static int start_unit_one(
1781 DBusConnection *bus,
1788 DBusMessage *m = NULL, *reply = NULL;
1797 assert(arg_no_block || s);
1799 if (!(m = dbus_message_new_method_call(
1800 "org.freedesktop.systemd1",
1801 "/org/freedesktop/systemd1",
1802 "org.freedesktop.systemd1.Manager",
1804 log_error("Could not allocate message.");
1809 if (!dbus_message_append_args(m,
1810 DBUS_TYPE_STRING, &name,
1811 DBUS_TYPE_STRING, &mode,
1812 DBUS_TYPE_INVALID)) {
1813 log_error("Could not append arguments to message.");
1818 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error))) {
1820 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(error)) {
1821 /* There's always a fallback possible for
1822 * legacy actions. */
1827 log_error("Failed to issue method call: %s", bus_error_message(error));
1832 if (!dbus_message_get_args(reply, error,
1833 DBUS_TYPE_OBJECT_PATH, &path,
1834 DBUS_TYPE_INVALID)) {
1835 log_error("Failed to parse reply: %s", bus_error_message(error));
1840 if (need_daemon_reload(bus, name))
1841 log_warning("Warning: Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.",
1842 arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
1844 if (!arg_no_block) {
1847 if (!(p = strdup(path))) {
1848 log_error("Failed to duplicate path.");
1853 if ((r = set_put(s, p)) < 0) {
1855 log_error("Failed to add path to set.");
1860 /* When stopping unit check if we have some listening sockets active */
1861 if (streq(method, "StopUnit") && !arg_quiet)
1862 check_listening_sockets(bus, name);
1868 dbus_message_unref(m);
1871 dbus_message_unref(reply);
1876 static enum action verb_to_action(const char *verb) {
1877 if (streq(verb, "halt"))
1879 else if (streq(verb, "poweroff"))
1880 return ACTION_POWEROFF;
1881 else if (streq(verb, "reboot"))
1882 return ACTION_REBOOT;
1883 else if (streq(verb, "kexec"))
1884 return ACTION_KEXEC;
1885 else if (streq(verb, "rescue"))
1886 return ACTION_RESCUE;
1887 else if (streq(verb, "emergency"))
1888 return ACTION_EMERGENCY;
1889 else if (streq(verb, "default"))
1890 return ACTION_DEFAULT;
1891 else if (streq(verb, "exit"))
1893 else if (streq(verb, "suspend"))
1894 return ACTION_SUSPEND;
1895 else if (streq(verb, "hibernate"))
1896 return ACTION_HIBERNATE;
1898 return ACTION_INVALID;
1901 static int start_unit(DBusConnection *bus, char **args) {
1903 static const char * const table[_ACTION_MAX] = {
1904 [ACTION_HALT] = SPECIAL_HALT_TARGET,
1905 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
1906 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
1907 [ACTION_KEXEC] = SPECIAL_KEXEC_TARGET,
1908 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
1909 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
1910 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
1911 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
1912 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
1913 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
1914 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET,
1915 [ACTION_EXIT] = SPECIAL_EXIT_TARGET,
1916 [ACTION_SUSPEND] = SPECIAL_SUSPEND_TARGET,
1917 [ACTION_HIBERNATE] = SPECIAL_HIBERNATE_TARGET
1921 const char *method, *mode, *one_name;
1926 dbus_error_init(&error);
1930 ask_password_agent_open_if_enabled();
1932 if (arg_action == ACTION_SYSTEMCTL) {
1934 streq(args[0], "stop") ||
1935 streq(args[0], "condstop") ? "StopUnit" :
1936 streq(args[0], "reload") ? "ReloadUnit" :
1937 streq(args[0], "restart") ? "RestartUnit" :
1939 streq(args[0], "try-restart") ||
1940 streq(args[0], "condrestart") ? "TryRestartUnit" :
1942 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
1944 streq(args[0], "reload-or-try-restart") ||
1945 streq(args[0], "condreload") ||
1947 streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" :
1951 (streq(args[0], "isolate") ||
1952 streq(args[0], "rescue") ||
1953 streq(args[0], "emergency")) ? "isolate" : arg_job_mode;
1955 one_name = table[verb_to_action(args[0])];
1958 assert(arg_action < ELEMENTSOF(table));
1959 assert(table[arg_action]);
1961 method = "StartUnit";
1963 mode = (arg_action == ACTION_EMERGENCY ||
1964 arg_action == ACTION_RESCUE ||
1965 arg_action == ACTION_RUNLEVEL2 ||
1966 arg_action == ACTION_RUNLEVEL3 ||
1967 arg_action == ACTION_RUNLEVEL4 ||
1968 arg_action == ACTION_RUNLEVEL5) ? "isolate" : "replace";
1970 one_name = table[arg_action];
1973 if (!arg_no_block) {
1974 if ((ret = enable_wait_for_jobs(bus)) < 0) {
1975 log_error("Could not watch jobs: %s", strerror(-ret));
1979 if (!(s = set_new(string_hash_func, string_compare_func))) {
1980 log_error("Failed to allocate set.");
1987 if ((ret = start_unit_one(bus, method, one_name, mode, &error, s)) <= 0)
1990 STRV_FOREACH(name, args+1)
1991 if ((r = start_unit_one(bus, method, *name, mode, &error, s)) != 0) {
1992 ret = translate_bus_error_to_exit_status(r, &error);
1993 dbus_error_free(&error);
1998 if ((r = wait_for_jobs(bus, s)) < 0) {
2007 dbus_error_free(&error);
2012 /* Ask systemd-logind, which might grant access to unprivileged users
2013 * through PolicyKit */
2014 static int reboot_with_logind(DBusConnection *bus, enum action a) {
2017 DBusMessage *m = NULL, *reply = NULL;
2019 dbus_bool_t interactive = true;
2022 dbus_error_init(&error);
2024 polkit_agent_open_if_enabled();
2032 case ACTION_POWEROFF:
2033 method = "PowerOff";
2036 case ACTION_SUSPEND:
2040 case ACTION_HIBERNATE:
2041 method = "Hibernate";
2048 m = dbus_message_new_method_call(
2049 "org.freedesktop.login1",
2050 "/org/freedesktop/login1",
2051 "org.freedesktop.login1.Manager",
2054 log_error("Could not allocate message.");
2059 if (!dbus_message_append_args(m,
2060 DBUS_TYPE_BOOLEAN, &interactive,
2061 DBUS_TYPE_INVALID)) {
2062 log_error("Could not append arguments to message.");
2067 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
2069 if (error_is_no_service(&error)) {
2070 log_debug("Failed to issue method call: %s", bus_error_message(&error));
2075 if (dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
2076 log_debug("Failed to issue method call: %s", bus_error_message(&error));
2081 log_info("Failed to issue method call: %s", bus_error_message(&error));
2090 dbus_message_unref(m);
2093 dbus_message_unref(reply);
2095 dbus_error_free(&error);
2103 static int start_special(DBusConnection *bus, char **args) {
2109 a = verb_to_action(args[0]);
2111 if (arg_force >= 2 && geteuid() != 0) {
2112 log_error("Must be root.");
2116 if (arg_force >= 2 &&
2117 (a == ACTION_HALT ||
2118 a == ACTION_POWEROFF ||
2119 a == ACTION_REBOOT))
2122 if (arg_force >= 1 &&
2123 (a == ACTION_HALT ||
2124 a == ACTION_POWEROFF ||
2125 a == ACTION_REBOOT ||
2126 a == ACTION_KEXEC ||
2128 return daemon_reload(bus, args);
2130 /* first try logind, to allow authentication with polkit */
2131 if (geteuid() != 0 &&
2132 (a == ACTION_POWEROFF ||
2133 a == ACTION_REBOOT ||
2134 a == ACTION_SUSPEND ||
2135 a == ACTION_HIBERNATE)) {
2136 r = reboot_with_logind(bus, a);
2141 r = start_unit(bus, args);
2148 static int check_unit(DBusConnection *bus, char **args) {
2150 int r = 3; /* According to LSB: "program is not running" */
2155 STRV_FOREACH(name, args+1) {
2156 int state = check_one_unit(bus, *name, arg_quiet);
2166 static int kill_unit(DBusConnection *bus, char **args) {
2167 DBusMessage *m = NULL;
2175 dbus_error_init(&error);
2178 arg_kill_who = "all";
2181 arg_kill_mode = streq(arg_kill_who, "all") ? "control-group" : "process";
2183 STRV_FOREACH(name, args+1) {
2186 if (!(m = dbus_message_new_method_call(
2187 "org.freedesktop.systemd1",
2188 "/org/freedesktop/systemd1",
2189 "org.freedesktop.systemd1.Manager",
2191 log_error("Could not allocate message.");
2196 if (!dbus_message_append_args(m,
2197 DBUS_TYPE_STRING, name,
2198 DBUS_TYPE_STRING, &arg_kill_who,
2199 DBUS_TYPE_STRING, &arg_kill_mode,
2200 DBUS_TYPE_INT32, &arg_signal,
2201 DBUS_TYPE_INVALID)) {
2202 log_error("Could not append arguments to message.");
2207 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2208 log_error("Failed to issue method call: %s", bus_error_message(&error));
2209 dbus_error_free(&error);
2213 dbus_message_unref(m);
2216 dbus_message_unref(reply);
2222 dbus_message_unref(m);
2224 dbus_error_free(&error);
2229 typedef struct ExecStatusInfo {
2237 usec_t start_timestamp;
2238 usec_t exit_timestamp;
2243 LIST_FIELDS(struct ExecStatusInfo, exec);
2246 static void exec_status_info_free(ExecStatusInfo *i) {
2255 static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
2256 uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
2257 DBusMessageIter sub2, sub3;
2261 int32_t code, status;
2267 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
2270 dbus_message_iter_recurse(sub, &sub2);
2272 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
2275 if (!(i->path = strdup(path)))
2278 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
2279 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
2283 dbus_message_iter_recurse(&sub2, &sub3);
2284 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
2285 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
2286 dbus_message_iter_next(&sub3);
2291 if (!(i->argv = new0(char*, n+1)))
2295 dbus_message_iter_recurse(&sub2, &sub3);
2296 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
2299 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
2300 dbus_message_iter_get_basic(&sub3, &s);
2301 dbus_message_iter_next(&sub3);
2303 if (!(i->argv[n++] = strdup(s)))
2307 if (!dbus_message_iter_next(&sub2) ||
2308 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
2309 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
2310 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp_monotonic, true) < 0 ||
2311 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
2312 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp_monotonic, true) < 0 ||
2313 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
2314 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
2315 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
2319 i->start_timestamp = (usec_t) start_timestamp;
2320 i->exit_timestamp = (usec_t) exit_timestamp;
2321 i->pid = (pid_t) pid;
2328 typedef struct UnitStatusInfo {
2330 const char *load_state;
2331 const char *active_state;
2332 const char *sub_state;
2333 const char *unit_file_state;
2335 const char *description;
2336 const char *following;
2338 char **documentation;
2340 const char *fragment_path;
2341 const char *source_path;
2342 const char *default_control_group;
2344 const char *load_error;
2347 usec_t inactive_exit_timestamp;
2348 usec_t inactive_exit_timestamp_monotonic;
2349 usec_t active_enter_timestamp;
2350 usec_t active_exit_timestamp;
2351 usec_t inactive_enter_timestamp;
2353 bool need_daemon_reload;
2358 const char *status_text;
2361 usec_t start_timestamp;
2362 usec_t exit_timestamp;
2364 int exit_code, exit_status;
2366 usec_t condition_timestamp;
2367 bool condition_result;
2370 unsigned n_accepted;
2371 unsigned n_connections;
2375 const char *sysfs_path;
2377 /* Mount, Automount */
2383 LIST_HEAD(ExecStatusInfo, exec);
2386 static void print_status_info(UnitStatusInfo *i) {
2388 const char *on, *off, *ss;
2390 char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
2391 char since2[FORMAT_TIMESTAMP_MAX], *s2;
2396 /* This shows pretty information about a unit. See
2397 * print_property() for a low-level property printer */
2399 printf("%s", strna(i->id));
2401 if (i->description && !streq_ptr(i->id, i->description))
2402 printf(" - %s", i->description);
2407 printf("\t Follow: unit currently follows state of %s\n", i->following);
2409 if (streq_ptr(i->load_state, "error")) {
2410 on = ansi_highlight_red(true);
2411 off = ansi_highlight_red(false);
2415 path = i->source_path ? i->source_path : i->fragment_path;
2418 printf("\t Loaded: %s%s%s (Reason: %s)\n", on, strna(i->load_state), off, i->load_error);
2419 else if (path && i->unit_file_state)
2420 printf("\t Loaded: %s%s%s (%s; %s)\n", on, strna(i->load_state), off, path, i->unit_file_state);
2422 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, path);
2424 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
2426 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
2428 if (streq_ptr(i->active_state, "failed")) {
2429 on = ansi_highlight_red(true);
2430 off = ansi_highlight_red(false);
2431 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
2432 on = ansi_highlight_green(true);
2433 off = ansi_highlight_green(false);
2438 printf("\t Active: %s%s (%s)%s",
2440 strna(i->active_state),
2444 printf("\t Active: %s%s%s",
2446 strna(i->active_state),
2449 if (!isempty(i->result) && !streq(i->result, "success"))
2450 printf(" (Result: %s)", i->result);
2452 timestamp = (streq_ptr(i->active_state, "active") ||
2453 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
2454 (streq_ptr(i->active_state, "inactive") ||
2455 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
2456 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
2457 i->active_exit_timestamp;
2459 s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp);
2460 s2 = format_timestamp(since2, sizeof(since2), timestamp);
2463 printf(" since %s; %s\n", s2, s1);
2465 printf(" since %s\n", s2);
2469 if (!i->condition_result && i->condition_timestamp > 0) {
2470 s1 = format_timestamp_pretty(since1, sizeof(since1), i->condition_timestamp);
2471 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
2474 printf("\t start condition failed at %s; %s\n", s2, s1);
2476 printf("\t start condition failed at %s\n", s2);
2480 printf("\t Device: %s\n", i->sysfs_path);
2482 printf("\t Where: %s\n", i->where);
2484 printf("\t What: %s\n", i->what);
2486 if (!strv_isempty(i->documentation)) {
2490 STRV_FOREACH(t, i->documentation) {
2492 printf("\t Docs: %s\n", *t);
2495 printf("\t %s\n", *t);
2500 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
2502 LIST_FOREACH(exec, p, i->exec) {
2506 /* Only show exited processes here */
2510 t = strv_join(p->argv, " ");
2511 printf("\t Process: %u %s=%s ", p->pid, p->name, strna(t));
2514 good = is_clean_exit_lsb(p->code, p->status);
2516 on = ansi_highlight_red(true);
2517 off = ansi_highlight_red(false);
2521 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
2523 if (p->code == CLD_EXITED) {
2526 printf("status=%i", p->status);
2528 c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD);
2533 printf("signal=%s", signal_to_string(p->status));
2535 printf(")%s\n", off);
2537 if (i->main_pid == p->pid &&
2538 i->start_timestamp == p->start_timestamp &&
2539 i->exit_timestamp == p->start_timestamp)
2540 /* Let's not show this twice */
2543 if (p->pid == i->control_pid)
2547 if (i->main_pid > 0 || i->control_pid > 0) {
2550 if (i->main_pid > 0) {
2551 printf("Main PID: %u", (unsigned) i->main_pid);
2555 get_process_comm(i->main_pid, &t);
2560 } else if (i->exit_code > 0) {
2561 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
2563 if (i->exit_code == CLD_EXITED) {
2566 printf("status=%i", i->exit_status);
2568 c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD);
2573 printf("signal=%s", signal_to_string(i->exit_status));
2578 if (i->main_pid > 0 && i->control_pid > 0)
2581 if (i->control_pid > 0) {
2584 printf(" Control: %u", (unsigned) i->control_pid);
2586 get_process_comm(i->control_pid, &t);
2597 printf("\t Status: \"%s\"\n", i->status_text);
2599 if (i->default_control_group) {
2602 printf("\t CGroup: %s\n", i->default_control_group);
2604 if (arg_transport != TRANSPORT_SSH) {
2614 if (i->main_pid > 0)
2615 extra[k++] = i->main_pid;
2617 if (i->control_pid > 0)
2618 extra[k++] = i->control_pid;
2620 show_cgroup_and_extra_by_spec(i->default_control_group, "\t\t ", c, false, arg_all, extra, k);
2624 if (i->id && arg_transport != TRANSPORT_SSH) {
2626 show_journal_by_unit(i->id, arg_output, 0, i->inactive_exit_timestamp_monotonic, arg_lines, arg_all, arg_follow);
2629 if (i->need_daemon_reload)
2630 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
2631 ansi_highlight_red(true),
2632 ansi_highlight_red(false),
2633 arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
2636 static void show_unit_help(UnitStatusInfo *i) {
2641 if (!i->documentation) {
2642 log_info("Documentation for %s not known.", i->id);
2646 STRV_FOREACH(p, i->documentation) {
2648 if (startswith(*p, "man:")) {
2651 char *page = NULL, *section = NULL;
2652 const char *args[4] = { "man", NULL, NULL, NULL };
2657 if ((*p)[k-1] == ')')
2658 e = strrchr(*p, '(');
2661 page = strndup((*p) + 4, e - *p - 4);
2663 log_error("Out of memory.");
2667 section = strndup(e + 1, *p + k - e - 2);
2670 log_error("Out of memory");
2681 log_error("Failed to fork: %m");
2689 execvp(args[0], (char**) args);
2690 log_error("Failed to execute man: %m");
2691 _exit(EXIT_FAILURE);
2697 wait_for_terminate(pid, NULL);
2699 log_info("Can't show %s.", *p);
2703 static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
2709 switch (dbus_message_iter_get_arg_type(iter)) {
2711 case DBUS_TYPE_STRING: {
2714 dbus_message_iter_get_basic(iter, &s);
2717 if (streq(name, "Id"))
2719 else if (streq(name, "LoadState"))
2721 else if (streq(name, "ActiveState"))
2722 i->active_state = s;
2723 else if (streq(name, "SubState"))
2725 else if (streq(name, "Description"))
2727 else if (streq(name, "FragmentPath"))
2728 i->fragment_path = s;
2729 else if (streq(name, "SourcePath"))
2731 else if (streq(name, "DefaultControlGroup"))
2732 i->default_control_group = s;
2733 else if (streq(name, "StatusText"))
2735 else if (streq(name, "SysFSPath"))
2737 else if (streq(name, "Where"))
2739 else if (streq(name, "What"))
2741 else if (streq(name, "Following"))
2743 else if (streq(name, "UnitFileState"))
2744 i->unit_file_state = s;
2745 else if (streq(name, "Result"))
2752 case DBUS_TYPE_BOOLEAN: {
2755 dbus_message_iter_get_basic(iter, &b);
2757 if (streq(name, "Accept"))
2759 else if (streq(name, "NeedDaemonReload"))
2760 i->need_daemon_reload = b;
2761 else if (streq(name, "ConditionResult"))
2762 i->condition_result = b;
2767 case DBUS_TYPE_UINT32: {
2770 dbus_message_iter_get_basic(iter, &u);
2772 if (streq(name, "MainPID")) {
2774 i->main_pid = (pid_t) u;
2777 } else if (streq(name, "ControlPID"))
2778 i->control_pid = (pid_t) u;
2779 else if (streq(name, "ExecMainPID")) {
2781 i->main_pid = (pid_t) u;
2782 } else if (streq(name, "NAccepted"))
2784 else if (streq(name, "NConnections"))
2785 i->n_connections = u;
2790 case DBUS_TYPE_INT32: {
2793 dbus_message_iter_get_basic(iter, &j);
2795 if (streq(name, "ExecMainCode"))
2796 i->exit_code = (int) j;
2797 else if (streq(name, "ExecMainStatus"))
2798 i->exit_status = (int) j;
2803 case DBUS_TYPE_UINT64: {
2806 dbus_message_iter_get_basic(iter, &u);
2808 if (streq(name, "ExecMainStartTimestamp"))
2809 i->start_timestamp = (usec_t) u;
2810 else if (streq(name, "ExecMainExitTimestamp"))
2811 i->exit_timestamp = (usec_t) u;
2812 else if (streq(name, "ActiveEnterTimestamp"))
2813 i->active_enter_timestamp = (usec_t) u;
2814 else if (streq(name, "InactiveEnterTimestamp"))
2815 i->inactive_enter_timestamp = (usec_t) u;
2816 else if (streq(name, "InactiveExitTimestamp"))
2817 i->inactive_exit_timestamp = (usec_t) u;
2818 else if (streq(name, "InactiveExitTimestampMonotonic"))
2819 i->inactive_exit_timestamp_monotonic = (usec_t) u;
2820 else if (streq(name, "ActiveExitTimestamp"))
2821 i->active_exit_timestamp = (usec_t) u;
2822 else if (streq(name, "ConditionTimestamp"))
2823 i->condition_timestamp = (usec_t) u;
2828 case DBUS_TYPE_ARRAY: {
2830 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
2831 startswith(name, "Exec")) {
2832 DBusMessageIter sub;
2834 dbus_message_iter_recurse(iter, &sub);
2835 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2836 ExecStatusInfo *info;
2839 if (!(info = new0(ExecStatusInfo, 1)))
2842 if (!(info->name = strdup(name))) {
2847 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
2852 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
2854 dbus_message_iter_next(&sub);
2856 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING &&
2857 streq(name, "Documentation")) {
2859 DBusMessageIter sub;
2861 dbus_message_iter_recurse(iter, &sub);
2862 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING) {
2866 dbus_message_iter_get_basic(&sub, &s);
2868 l = strv_append(i->documentation, s);
2872 strv_free(i->documentation);
2873 i->documentation = l;
2875 dbus_message_iter_next(&sub);
2882 case DBUS_TYPE_STRUCT: {
2884 if (streq(name, "LoadError")) {
2885 DBusMessageIter sub;
2886 const char *n, *message;
2889 dbus_message_iter_recurse(iter, &sub);
2891 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &n, true);
2895 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &message, false);
2899 if (!isempty(message))
2900 i->load_error = message;
2910 static int print_property(const char *name, DBusMessageIter *iter) {
2914 /* This is a low-level property printer, see
2915 * print_status_info() for the nicer output */
2917 if (arg_property && !strv_find(arg_property, name))
2920 switch (dbus_message_iter_get_arg_type(iter)) {
2922 case DBUS_TYPE_STRUCT: {
2923 DBusMessageIter sub;
2924 dbus_message_iter_recurse(iter, &sub);
2926 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
2929 dbus_message_iter_get_basic(&sub, &u);
2932 printf("%s=%u\n", name, (unsigned) u);
2934 printf("%s=\n", name);
2937 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
2940 dbus_message_iter_get_basic(&sub, &s);
2942 if (arg_all || s[0])
2943 printf("%s=%s\n", name, s);
2946 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "LoadError")) {
2947 const char *a = NULL, *b = NULL;
2949 if (bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &a, true) >= 0)
2950 bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &b, false);
2952 if (arg_all || !isempty(a) || !isempty(b))
2953 printf("%s=%s \"%s\"\n", name, strempty(a), strempty(b));
2961 case DBUS_TYPE_ARRAY:
2963 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "EnvironmentFiles")) {
2964 DBusMessageIter sub, sub2;
2966 dbus_message_iter_recurse(iter, &sub);
2967 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2971 dbus_message_iter_recurse(&sub, &sub2);
2973 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) >= 0 &&
2974 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, false) >= 0)
2975 printf("EnvironmentFile=%s (ignore_errors=%s)\n", path, yes_no(ignore));
2977 dbus_message_iter_next(&sub);
2982 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2983 DBusMessageIter sub, sub2;
2985 dbus_message_iter_recurse(iter, &sub);
2986 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2987 const char *type, *path;
2989 dbus_message_iter_recurse(&sub, &sub2);
2991 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2992 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2993 printf("%s=%s\n", type, path);
2995 dbus_message_iter_next(&sub);
3000 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
3001 DBusMessageIter sub, sub2;
3003 dbus_message_iter_recurse(iter, &sub);
3004 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3006 uint64_t value, next_elapse;
3008 dbus_message_iter_recurse(&sub, &sub2);
3010 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
3011 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
3012 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
3013 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
3015 printf("%s={ value=%s ; next_elapse=%s }\n",
3017 format_timespan(timespan1, sizeof(timespan1), value),
3018 format_timespan(timespan2, sizeof(timespan2), next_elapse));
3021 dbus_message_iter_next(&sub);
3026 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "ControlGroupAttributes")) {
3027 DBusMessageIter sub, sub2;
3029 dbus_message_iter_recurse(iter, &sub);
3030 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3031 const char *controller, *attr, *value;
3033 dbus_message_iter_recurse(&sub, &sub2);
3035 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &controller, true) >= 0 &&
3036 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &attr, true) >= 0 &&
3037 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &value, false) >= 0) {
3039 printf("ControlGroupAttribute={ controller=%s ; attribute=%s ; value=\"%s\" }\n",
3045 dbus_message_iter_next(&sub);
3050 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
3051 DBusMessageIter sub;
3053 dbus_message_iter_recurse(iter, &sub);
3054 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3055 ExecStatusInfo info;
3058 if (exec_status_info_deserialize(&sub, &info) >= 0) {
3059 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
3062 t = strv_join(info.argv, " ");
3064 printf("%s={ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
3068 yes_no(info.ignore),
3069 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
3070 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
3071 (unsigned) info. pid,
3072 sigchld_code_to_string(info.code),
3074 info.code == CLD_EXITED ? "" : "/",
3075 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
3081 strv_free(info.argv);
3083 dbus_message_iter_next(&sub);
3092 if (generic_print_property(name, iter, arg_all) > 0)
3096 printf("%s=[unprintable]\n", name);
3101 static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
3102 DBusMessage *m = NULL, *reply = NULL;
3103 const char *interface = "";
3106 DBusMessageIter iter, sub, sub2, sub3;
3107 UnitStatusInfo info;
3115 dbus_error_init(&error);
3117 if (!(m = dbus_message_new_method_call(
3118 "org.freedesktop.systemd1",
3120 "org.freedesktop.DBus.Properties",
3122 log_error("Could not allocate message.");
3127 if (!dbus_message_append_args(m,
3128 DBUS_TYPE_STRING, &interface,
3129 DBUS_TYPE_INVALID)) {
3130 log_error("Could not append arguments to message.");
3135 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3136 log_error("Failed to issue method call: %s", bus_error_message(&error));
3141 if (!dbus_message_iter_init(reply, &iter) ||
3142 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
3143 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
3144 log_error("Failed to parse reply.");
3149 dbus_message_iter_recurse(&iter, &sub);
3156 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
3159 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
3160 log_error("Failed to parse reply.");
3165 dbus_message_iter_recurse(&sub, &sub2);
3167 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
3168 log_error("Failed to parse reply.");
3173 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
3174 log_error("Failed to parse reply.");
3179 dbus_message_iter_recurse(&sub2, &sub3);
3181 if (show_properties)
3182 r = print_property(name, &sub3);
3184 r = status_property(name, &sub3, &info);
3187 log_error("Failed to parse reply.");
3192 dbus_message_iter_next(&sub);
3197 if (!show_properties) {
3198 if (streq(verb, "help"))
3199 show_unit_help(&info);
3201 print_status_info(&info);
3204 strv_free(info.documentation);
3206 if (!streq_ptr(info.active_state, "active") &&
3207 !streq_ptr(info.active_state, "reloading") &&
3208 streq(verb, "status"))
3209 /* According to LSB: "program not running" */
3212 while ((p = info.exec)) {
3213 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
3214 exec_status_info_free(p);
3219 dbus_message_unref(m);
3222 dbus_message_unref(reply);
3224 dbus_error_free(&error);
3229 static int show_one_by_pid(const char *verb, DBusConnection *bus, uint32_t pid, bool *new_line) {
3230 DBusMessage *m = NULL, *reply = NULL;
3231 const char *path = NULL;
3235 dbus_error_init(&error);
3237 m = dbus_message_new_method_call(
3238 "org.freedesktop.systemd1",
3239 "/org/freedesktop/systemd1",
3240 "org.freedesktop.systemd1.Manager",
3243 log_error("Could not allocate message.");
3248 if (!dbus_message_append_args(m,
3249 DBUS_TYPE_UINT32, &pid,
3250 DBUS_TYPE_INVALID)) {
3251 log_error("Could not append arguments to message.");
3256 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3258 log_error("Failed to issue method call: %s", bus_error_message(&error));
3263 if (!dbus_message_get_args(reply, &error,
3264 DBUS_TYPE_OBJECT_PATH, &path,
3265 DBUS_TYPE_INVALID)) {
3266 log_error("Failed to parse reply: %s", bus_error_message(&error));
3271 r = show_one(verb, bus, path, false, new_line);
3275 dbus_message_unref(m);
3278 dbus_message_unref(reply);
3280 dbus_error_free(&error);
3285 static int show(DBusConnection *bus, char **args) {
3287 bool show_properties, new_line = false;
3293 show_properties = streq(args[0], "show");
3295 if (show_properties)
3296 pager_open_if_enabled();
3298 if (show_properties && strv_length(args) <= 1) {
3299 /* If not argument is specified inspect the manager
3302 return show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line);
3305 STRV_FOREACH(name, args+1) {
3308 if (safe_atou32(*name, &id) < 0) {
3310 /* Interpret as unit name */
3313 e = bus_path_escape(*name);
3316 p = strappend("/org/freedesktop/systemd1/unit/", e);
3321 r = show_one(args[0], bus, p, show_properties, &new_line);
3327 } else if (show_properties) {
3329 /* Interpret as job id */
3332 if (asprintf(&p, "/org/freedesktop/systemd1/job/%u", id) < 0)
3335 r = show_one(args[0], bus, p, show_properties, &new_line);
3343 /* Interpret as PID */
3345 r = show_one_by_pid(args[0], bus, id, &new_line);
3354 static int dump(DBusConnection *bus, char **args) {
3355 DBusMessage *m = NULL, *reply = NULL;
3360 dbus_error_init(&error);
3362 pager_open_if_enabled();
3364 if (!(m = dbus_message_new_method_call(
3365 "org.freedesktop.systemd1",
3366 "/org/freedesktop/systemd1",
3367 "org.freedesktop.systemd1.Manager",
3369 log_error("Could not allocate message.");
3373 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3374 log_error("Failed to issue method call: %s", bus_error_message(&error));
3379 if (!dbus_message_get_args(reply, &error,
3380 DBUS_TYPE_STRING, &text,
3381 DBUS_TYPE_INVALID)) {
3382 log_error("Failed to parse reply: %s", bus_error_message(&error));
3387 fputs(text, stdout);
3393 dbus_message_unref(m);
3396 dbus_message_unref(reply);
3398 dbus_error_free(&error);
3403 static int snapshot(DBusConnection *bus, char **args) {
3404 DBusMessage *m = NULL, *reply = NULL;
3407 const char *name = "", *path, *id;
3408 dbus_bool_t cleanup = FALSE;
3409 DBusMessageIter iter, sub;
3411 *interface = "org.freedesktop.systemd1.Unit",
3414 dbus_error_init(&error);
3416 if (!(m = dbus_message_new_method_call(
3417 "org.freedesktop.systemd1",
3418 "/org/freedesktop/systemd1",
3419 "org.freedesktop.systemd1.Manager",
3420 "CreateSnapshot"))) {
3421 log_error("Could not allocate message.");
3425 if (strv_length(args) > 1)
3428 if (!dbus_message_append_args(m,
3429 DBUS_TYPE_STRING, &name,
3430 DBUS_TYPE_BOOLEAN, &cleanup,
3431 DBUS_TYPE_INVALID)) {
3432 log_error("Could not append arguments to message.");
3437 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3438 log_error("Failed to issue method call: %s", bus_error_message(&error));
3443 if (!dbus_message_get_args(reply, &error,
3444 DBUS_TYPE_OBJECT_PATH, &path,
3445 DBUS_TYPE_INVALID)) {
3446 log_error("Failed to parse reply: %s", bus_error_message(&error));
3451 dbus_message_unref(m);
3452 if (!(m = dbus_message_new_method_call(
3453 "org.freedesktop.systemd1",
3455 "org.freedesktop.DBus.Properties",
3457 log_error("Could not allocate message.");
3461 if (!dbus_message_append_args(m,
3462 DBUS_TYPE_STRING, &interface,
3463 DBUS_TYPE_STRING, &property,
3464 DBUS_TYPE_INVALID)) {
3465 log_error("Could not append arguments to message.");
3470 dbus_message_unref(reply);
3471 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3472 log_error("Failed to issue method call: %s", bus_error_message(&error));
3477 if (!dbus_message_iter_init(reply, &iter) ||
3478 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3479 log_error("Failed to parse reply.");
3484 dbus_message_iter_recurse(&iter, &sub);
3486 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
3487 log_error("Failed to parse reply.");
3492 dbus_message_iter_get_basic(&sub, &id);
3500 dbus_message_unref(m);
3503 dbus_message_unref(reply);
3505 dbus_error_free(&error);
3510 static int delete_snapshot(DBusConnection *bus, char **args) {
3511 DBusMessage *m = NULL, *reply = NULL;
3519 dbus_error_init(&error);
3521 STRV_FOREACH(name, args+1) {
3522 const char *path = NULL;
3524 if (!(m = dbus_message_new_method_call(
3525 "org.freedesktop.systemd1",
3526 "/org/freedesktop/systemd1",
3527 "org.freedesktop.systemd1.Manager",
3529 log_error("Could not allocate message.");
3534 if (!dbus_message_append_args(m,
3535 DBUS_TYPE_STRING, name,
3536 DBUS_TYPE_INVALID)) {
3537 log_error("Could not append arguments to message.");
3542 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3543 log_error("Failed to issue method call: %s", bus_error_message(&error));
3548 if (!dbus_message_get_args(reply, &error,
3549 DBUS_TYPE_OBJECT_PATH, &path,
3550 DBUS_TYPE_INVALID)) {
3551 log_error("Failed to parse reply: %s", bus_error_message(&error));
3556 dbus_message_unref(m);
3557 if (!(m = dbus_message_new_method_call(
3558 "org.freedesktop.systemd1",
3560 "org.freedesktop.systemd1.Snapshot",
3562 log_error("Could not allocate message.");
3567 dbus_message_unref(reply);
3568 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3569 log_error("Failed to issue method call: %s", bus_error_message(&error));
3574 dbus_message_unref(m);
3575 dbus_message_unref(reply);
3583 dbus_message_unref(m);
3586 dbus_message_unref(reply);
3588 dbus_error_free(&error);
3593 static int daemon_reload(DBusConnection *bus, char **args) {
3594 DBusMessage *m = NULL, *reply = NULL;
3599 dbus_error_init(&error);
3601 if (arg_action == ACTION_RELOAD)
3603 else if (arg_action == ACTION_REEXEC)
3604 method = "Reexecute";
3606 assert(arg_action == ACTION_SYSTEMCTL);
3609 streq(args[0], "clear-jobs") ||
3610 streq(args[0], "cancel") ? "ClearJobs" :
3611 streq(args[0], "daemon-reexec") ? "Reexecute" :
3612 streq(args[0], "reset-failed") ? "ResetFailed" :
3613 streq(args[0], "halt") ? "Halt" :
3614 streq(args[0], "poweroff") ? "PowerOff" :
3615 streq(args[0], "reboot") ? "Reboot" :
3616 streq(args[0], "kexec") ? "KExec" :
3617 streq(args[0], "exit") ? "Exit" :
3618 /* "daemon-reload" */ "Reload";
3621 if (!(m = dbus_message_new_method_call(
3622 "org.freedesktop.systemd1",
3623 "/org/freedesktop/systemd1",
3624 "org.freedesktop.systemd1.Manager",
3626 log_error("Could not allocate message.");
3630 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3632 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
3633 /* There's always a fallback possible for
3634 * legacy actions. */
3639 if (streq(method, "Reexecute") && dbus_error_has_name(&error, DBUS_ERROR_NO_REPLY)) {
3640 /* On reexecution, we expect a disconnect, not
3646 log_error("Failed to issue method call: %s", bus_error_message(&error));
3655 dbus_message_unref(m);
3658 dbus_message_unref(reply);
3660 dbus_error_free(&error);
3665 static int reset_failed(DBusConnection *bus, char **args) {
3666 DBusMessage *m = NULL;
3672 dbus_error_init(&error);
3674 if (strv_length(args) <= 1)
3675 return daemon_reload(bus, args);
3677 STRV_FOREACH(name, args+1) {
3680 if (!(m = dbus_message_new_method_call(
3681 "org.freedesktop.systemd1",
3682 "/org/freedesktop/systemd1",
3683 "org.freedesktop.systemd1.Manager",
3684 "ResetFailedUnit"))) {
3685 log_error("Could not allocate message.");
3690 if (!dbus_message_append_args(m,
3691 DBUS_TYPE_STRING, name,
3692 DBUS_TYPE_INVALID)) {
3693 log_error("Could not append arguments to message.");
3698 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3699 log_error("Failed to issue method call: %s", bus_error_message(&error));
3704 dbus_message_unref(m);
3705 dbus_message_unref(reply);
3713 dbus_message_unref(m);
3715 dbus_error_free(&error);
3720 static int show_enviroment(DBusConnection *bus, char **args) {
3721 DBusMessage *m = NULL, *reply = NULL;
3723 DBusMessageIter iter, sub, sub2;
3726 *interface = "org.freedesktop.systemd1.Manager",
3727 *property = "Environment";
3729 dbus_error_init(&error);
3731 pager_open_if_enabled();
3733 if (!(m = dbus_message_new_method_call(
3734 "org.freedesktop.systemd1",
3735 "/org/freedesktop/systemd1",
3736 "org.freedesktop.DBus.Properties",
3738 log_error("Could not allocate message.");
3742 if (!dbus_message_append_args(m,
3743 DBUS_TYPE_STRING, &interface,
3744 DBUS_TYPE_STRING, &property,
3745 DBUS_TYPE_INVALID)) {
3746 log_error("Could not append arguments to message.");
3751 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3752 log_error("Failed to issue method call: %s", bus_error_message(&error));
3757 if (!dbus_message_iter_init(reply, &iter) ||
3758 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3759 log_error("Failed to parse reply.");
3764 dbus_message_iter_recurse(&iter, &sub);
3766 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3767 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3768 log_error("Failed to parse reply.");
3773 dbus_message_iter_recurse(&sub, &sub2);
3775 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3778 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3779 log_error("Failed to parse reply.");
3784 dbus_message_iter_get_basic(&sub2, &text);
3785 printf("%s\n", text);
3787 dbus_message_iter_next(&sub2);
3794 dbus_message_unref(m);
3797 dbus_message_unref(reply);
3799 dbus_error_free(&error);
3804 static int switch_root(DBusConnection *bus, char **args) {
3805 DBusMessage *m = NULL, *reply = NULL;
3807 const char *root, *init;
3811 dbus_error_init(&error);
3813 l = strv_length(args);
3814 if (l < 2 || l > 3) {
3815 log_error("Wrong number of arguments.");
3820 init = l >= 3 ? args[2] : "";
3822 m = dbus_message_new_method_call(
3823 "org.freedesktop.systemd1",
3824 "/org/freedesktop/systemd1",
3825 "org.freedesktop.systemd1.Manager",
3828 log_error("Could not allocate message.");
3832 if (!dbus_message_append_args(
3834 DBUS_TYPE_STRING, &root,
3835 DBUS_TYPE_STRING, &init,
3836 DBUS_TYPE_INVALID)) {
3837 log_error("Could not append arguments to message.");
3842 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3844 log_error("Failed to issue method call: %s", bus_error_message(&error));
3853 dbus_message_unref(m);
3856 dbus_message_unref(reply);
3858 dbus_error_free(&error);
3863 static int set_environment(DBusConnection *bus, char **args) {
3864 DBusMessage *m = NULL, *reply = NULL;
3868 DBusMessageIter iter, sub;
3871 dbus_error_init(&error);
3873 method = streq(args[0], "set-environment")
3875 : "UnsetEnvironment";
3877 if (!(m = dbus_message_new_method_call(
3878 "org.freedesktop.systemd1",
3879 "/org/freedesktop/systemd1",
3880 "org.freedesktop.systemd1.Manager",
3883 log_error("Could not allocate message.");
3887 dbus_message_iter_init_append(m, &iter);
3889 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
3890 log_error("Could not append arguments to message.");
3895 STRV_FOREACH(name, args+1)
3896 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, name)) {
3897 log_error("Could not append arguments to message.");
3902 if (!dbus_message_iter_close_container(&iter, &sub)) {
3903 log_error("Could not append arguments to message.");
3908 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3909 log_error("Failed to issue method call: %s", bus_error_message(&error));
3918 dbus_message_unref(m);
3921 dbus_message_unref(reply);
3923 dbus_error_free(&error);
3928 static int enable_sysv_units(char **args) {
3931 #if defined (HAVE_SYSV_COMPAT) && (defined(TARGET_FEDORA) || defined(TARGET_MANDRIVA) || defined(TARGET_SUSE) || defined(TARGET_MEEGO) || defined(TARGET_ALTLINUX) || defined(TARGET_MAGEIA))
3932 const char *verb = args[0];
3933 unsigned f = 1, t = 1;
3936 if (arg_scope != UNIT_FILE_SYSTEM)
3939 if (!streq(verb, "enable") &&
3940 !streq(verb, "disable") &&
3941 !streq(verb, "is-enabled"))
3944 /* Processes all SysV units, and reshuffles the array so that
3945 * afterwards only the native units remain */
3948 r = lookup_paths_init(&paths, MANAGER_SYSTEM, false, NULL, NULL, NULL);
3953 for (f = 1; args[f]; f++) {
3956 bool found_native = false, found_sysv;
3958 const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL };
3959 char **k, *l, *q = NULL;
3966 if (!endswith(name, ".service"))
3969 if (path_is_absolute(name))
3972 STRV_FOREACH(k, paths.unit_path) {
3975 if (!isempty(arg_root))
3976 asprintf(&p, "%s/%s/%s", arg_root, *k, name);
3978 asprintf(&p, "%s/%s", *k, name);
3981 log_error("No memory");
3986 found_native = access(p, F_OK) >= 0;
3997 if (!isempty(arg_root))
3998 asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name);
4000 asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name);
4002 log_error("No memory");
4007 p[strlen(p) - sizeof(".service") + 1] = 0;
4008 found_sysv = access(p, F_OK) >= 0;
4015 /* Mark this entry, so that we don't try enabling it as native unit */
4016 args[f] = (char*) "";
4018 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name);
4020 if (!isempty(arg_root))
4021 argv[c++] = q = strappend("--root=", arg_root);
4023 argv[c++] = path_get_file_name(p);
4025 streq(verb, "enable") ? "on" :
4026 streq(verb, "disable") ? "off" : "--level=5";
4029 l = strv_join((char**)argv, " ");
4031 log_error("No memory.");
4038 log_info("Executing %s", l);
4043 log_error("Failed to fork: %m");
4048 } else if (pid == 0) {
4051 execv(argv[0], (char**) argv);
4052 _exit(EXIT_FAILURE);
4058 j = wait_for_terminate(pid, &status);
4060 log_error("Failed to wait for child: %s", strerror(-r));
4065 if (status.si_code == CLD_EXITED) {
4066 if (streq(verb, "is-enabled")) {
4067 if (status.si_status == 0) {
4076 } else if (status.si_status != 0) {
4087 lookup_paths_free(&paths);
4089 /* Drop all SysV units */
4090 for (f = 1, t = 1; args[f]; f++) {
4092 if (isempty(args[f]))
4095 args[t++] = args[f];
4104 static int enable_unit(DBusConnection *bus, char **args) {
4105 const char *verb = args[0];
4106 UnitFileChange *changes = NULL;
4107 unsigned n_changes = 0, i;
4108 int carries_install_info = -1;
4109 DBusMessage *m = NULL, *reply = NULL;
4113 r = enable_sysv_units(args);
4120 dbus_error_init(&error);
4122 if (!bus || avoid_bus()) {
4123 if (streq(verb, "enable")) {
4124 r = unit_file_enable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4125 carries_install_info = r;
4126 } else if (streq(verb, "disable"))
4127 r = unit_file_disable(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
4128 else if (streq(verb, "reenable")) {
4129 r = unit_file_reenable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4130 carries_install_info = r;
4131 } else if (streq(verb, "link"))
4132 r = unit_file_link(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4133 else if (streq(verb, "preset")) {
4134 r = unit_file_preset(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4135 carries_install_info = r;
4136 } else if (streq(verb, "mask"))
4137 r = unit_file_mask(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4138 else if (streq(verb, "unmask"))
4139 r = unit_file_unmask(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
4141 assert_not_reached("Unknown verb");
4144 log_error("Operation failed: %s", strerror(-r));
4149 for (i = 0; i < n_changes; i++) {
4150 if (changes[i].type == UNIT_FILE_SYMLINK)
4151 log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path);
4153 log_info("rm '%s'", changes[i].path);
4159 bool send_force = true, expect_carries_install_info = false;
4161 DBusMessageIter iter, sub, sub2;
4163 if (streq(verb, "enable")) {
4164 method = "EnableUnitFiles";
4165 expect_carries_install_info = true;
4166 } else if (streq(verb, "disable")) {
4167 method = "DisableUnitFiles";
4169 } else if (streq(verb, "reenable")) {
4170 method = "ReenableUnitFiles";
4171 expect_carries_install_info = true;
4172 } else if (streq(verb, "link"))
4173 method = "LinkUnitFiles";
4174 else if (streq(verb, "preset")) {
4175 method = "PresetUnitFiles";
4176 expect_carries_install_info = true;
4177 } else if (streq(verb, "mask"))
4178 method = "MaskUnitFiles";
4179 else if (streq(verb, "unmask")) {
4180 method = "UnmaskUnitFiles";
4183 assert_not_reached("Unknown verb");
4185 m = dbus_message_new_method_call(
4186 "org.freedesktop.systemd1",
4187 "/org/freedesktop/systemd1",
4188 "org.freedesktop.systemd1.Manager",
4191 log_error("Out of memory");
4196 dbus_message_iter_init_append(m, &iter);
4198 r = bus_append_strv_iter(&iter, args+1);
4200 log_error("Failed to append unit files.");
4205 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &a)) {
4206 log_error("Failed to append runtime boolean.");
4214 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b)) {
4215 log_error("Failed to append force boolean.");
4221 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
4223 log_error("Failed to issue method call: %s", bus_error_message(&error));
4228 if (!dbus_message_iter_init(reply, &iter)) {
4229 log_error("Failed to initialize iterator.");
4233 if (expect_carries_install_info) {
4234 r = bus_iter_get_basic_and_next(&iter, DBUS_TYPE_BOOLEAN, &b, true);
4236 log_error("Failed to parse reply.");
4240 carries_install_info = b;
4243 if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
4244 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
4245 log_error("Failed to parse reply.");
4250 dbus_message_iter_recurse(&iter, &sub);
4251 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
4252 const char *type, *path, *source;
4254 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
4255 log_error("Failed to parse reply.");
4260 dbus_message_iter_recurse(&sub, &sub2);
4262 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
4263 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0 ||
4264 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &source, false) < 0) {
4265 log_error("Failed to parse reply.");
4271 if (streq(type, "symlink"))
4272 log_info("ln -s '%s' '%s'", source, path);
4274 log_info("rm '%s'", path);
4277 dbus_message_iter_next(&sub);
4280 /* Try to reload if enabeld */
4282 r = daemon_reload(bus, args);
4285 if (carries_install_info == 0)
4286 log_warning("Warning: unit files do not carry install information. No operation executed.");
4290 dbus_message_unref(m);
4293 dbus_message_unref(reply);
4295 unit_file_changes_free(changes, n_changes);
4297 dbus_error_free(&error);
4301 static int unit_is_enabled(DBusConnection *bus, char **args) {
4304 DBusMessage *m = NULL, *reply = NULL;
4308 dbus_error_init(&error);
4310 r = enable_sysv_units(args);
4316 if (!bus || avoid_bus()) {
4318 STRV_FOREACH(name, args+1) {
4319 UnitFileState state;
4321 state = unit_file_get_state(arg_scope, arg_root, *name);
4327 if (state == UNIT_FILE_ENABLED ||
4328 state == UNIT_FILE_ENABLED_RUNTIME ||
4329 state == UNIT_FILE_STATIC)
4333 puts(unit_file_state_to_string(state));
4337 STRV_FOREACH(name, args+1) {
4340 m = dbus_message_new_method_call(
4341 "org.freedesktop.systemd1",
4342 "/org/freedesktop/systemd1",
4343 "org.freedesktop.systemd1.Manager",
4344 "GetUnitFileState");
4346 log_error("Out of memory");
4351 if (!dbus_message_append_args(m,
4352 DBUS_TYPE_STRING, name,
4353 DBUS_TYPE_INVALID)) {
4354 log_error("Could not append arguments to message.");
4359 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
4361 log_error("Failed to issue method call: %s", bus_error_message(&error));
4366 if (!dbus_message_get_args(reply, &error,
4367 DBUS_TYPE_STRING, &s,
4368 DBUS_TYPE_INVALID)) {
4369 log_error("Failed to parse reply: %s", bus_error_message(&error));
4374 dbus_message_unref(m);
4375 dbus_message_unref(reply);
4378 if (streq(s, "enabled") ||
4379 streq(s, "enabled-runtime") ||
4388 r = enabled ? 0 : 1;
4392 dbus_message_unref(m);
4395 dbus_message_unref(reply);
4397 dbus_error_free(&error);
4401 static int systemctl_help(void) {
4403 pager_open_if_enabled();
4405 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
4406 "Query or send control commands to the systemd manager.\n\n"
4407 " -h --help Show this help\n"
4408 " --version Show package version\n"
4409 " -t --type=TYPE List only units of a particular type\n"
4410 " -p --property=NAME Show only properties by this name\n"
4411 " -a --all Show all units/properties, including dead/empty ones\n"
4412 " --failed Show only failed units\n"
4413 " --full Don't ellipsize unit names on output\n"
4414 " --fail When queueing a new job, fail if conflicting jobs are\n"
4416 " --ignore-dependencies\n"
4417 " When queueing a new job, ignore all its dependencies\n"
4418 " --kill-who=WHO Who to send signal to\n"
4419 " -s --signal=SIGNAL Which signal to send\n"
4420 " -H --host=[USER@]HOST\n"
4421 " Show information for remote host\n"
4422 " -P --privileged Acquire privileges before execution\n"
4423 " -q --quiet Suppress output\n"
4424 " --no-block Do not wait until operation finished\n"
4425 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4426 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
4428 " --no-legend Do not print a legend (column headers and hints)\n"
4429 " --no-pager Do not pipe output into a pager\n"
4430 " --no-ask-password\n"
4431 " Do not ask for system passwords\n"
4432 " --order When generating graph for dot, show only order\n"
4433 " --require When generating graph for dot, show only requirement\n"
4434 " --system Connect to system manager\n"
4435 " --user Connect to user service manager\n"
4436 " --global Enable/disable unit files globally\n"
4437 " -f --force When enabling unit files, override existing symlinks\n"
4438 " When shutting down, execute action immediately\n"
4439 " --root=PATH Enable unit files in the specified root directory\n"
4440 " --runtime Enable unit files only temporarily until next reboot\n"
4441 " -n --lines=INTEGER Journal entries to show\n"
4442 " --follow Follow journal\n"
4443 " -o --output=STRING Change journal output mode (short, short-monotonic,\n"
4444 " verbose, export, json, cat)\n\n"
4446 " list-units List loaded units\n"
4447 " start [NAME...] Start (activate) one or more units\n"
4448 " stop [NAME...] Stop (deactivate) one or more units\n"
4449 " reload [NAME...] Reload one or more units\n"
4450 " restart [NAME...] Start or restart one or more units\n"
4451 " try-restart [NAME...] Restart one or more units if active\n"
4452 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
4453 " otherwise start or restart\n"
4454 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
4455 " otherwise restart if active\n"
4456 " isolate [NAME] Start one unit and stop all others\n"
4457 " kill [NAME...] Send signal to processes of a unit\n"
4458 " is-active [NAME...] Check whether units are active\n"
4459 " status [NAME...|PID...] Show runtime status of one or more units\n"
4460 " show [NAME...|JOB...] Show properties of one or more\n"
4461 " units/jobs or the manager\n"
4462 " help [NAME...|PID...] Show manual for one or more units\n"
4463 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4465 " load [NAME...] Load one or more units\n\n"
4466 "Unit File Commands:\n"
4467 " list-unit-files List installed unit files\n"
4468 " enable [NAME...] Enable one or more unit files\n"
4469 " disable [NAME...] Disable one or more unit files\n"
4470 " reenable [NAME...] Reenable one or more unit files\n"
4471 " preset [NAME...] Enable/disable one or more unit files\n"
4472 " based on preset configuration\n"
4473 " mask [NAME...] Mask one or more units\n"
4474 " unmask [NAME...] Unmask one or more units\n"
4475 " link [PATH...] Link one or more units files into\n"
4476 " the search path\n"
4477 " is-enabled [NAME...] Check whether unit files are enabled\n\n"
4479 " list-jobs List jobs\n"
4480 " cancel [JOB...] Cancel all, one, or more jobs\n\n"
4481 "Status Commands:\n"
4482 " dump Dump server status\n"
4483 " dot Dump dependency graph for dot(1)\n\n"
4484 "Snapshot Commands:\n"
4485 " snapshot [NAME] Create a snapshot\n"
4486 " delete [NAME...] Remove one or more snapshots\n\n"
4487 "Environment Commands:\n"
4488 " show-environment Dump environment\n"
4489 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
4490 " unset-environment [NAME...] Unset one or more environment variables\n\n"
4491 "Manager Lifecycle Commands:\n"
4492 " daemon-reload Reload systemd manager configuration\n"
4493 " daemon-reexec Reexecute systemd manager\n\n"
4494 "System Commands:\n"
4495 " default Enter system default mode\n"
4496 " rescue Enter system rescue mode\n"
4497 " emergency Enter system emergency mode\n"
4498 " halt Shut down and halt the system\n"
4499 " poweroff Shut down and power-off the system\n"
4500 " reboot Shut down and reboot the system\n"
4501 " kexec Shut down and reboot the system with kexec\n"
4502 " exit Request user instance exit\n"
4503 " switch-root [ROOT] [INIT] Change to a different root file system\n"
4504 " suspend Suspend the system\n"
4505 " hibernate Hibernate the system\n",
4506 program_invocation_short_name);
4511 static int halt_help(void) {
4513 printf("%s [OPTIONS...]\n\n"
4514 "%s the system.\n\n"
4515 " --help Show this help\n"
4516 " --halt Halt the machine\n"
4517 " -p --poweroff Switch off the machine\n"
4518 " --reboot Reboot the machine\n"
4519 " -f --force Force immediate halt/power-off/reboot\n"
4520 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
4521 " -d --no-wtmp Don't write wtmp record\n"
4522 " -n --no-sync Don't sync before halt/power-off/reboot\n"
4523 " --no-wall Don't send wall message before halt/power-off/reboot\n",
4524 program_invocation_short_name,
4525 arg_action == ACTION_REBOOT ? "Reboot" :
4526 arg_action == ACTION_POWEROFF ? "Power off" :
4532 static int shutdown_help(void) {
4534 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
4535 "Shut down the system.\n\n"
4536 " --help Show this help\n"
4537 " -H --halt Halt the machine\n"
4538 " -P --poweroff Power-off the machine\n"
4539 " -r --reboot Reboot the machine\n"
4540 " -h Equivalent to --poweroff, overridden by --halt\n"
4541 " -k Don't halt/power-off/reboot, just send warnings\n"
4542 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4543 " -c Cancel a pending shutdown\n",
4544 program_invocation_short_name);
4549 static int telinit_help(void) {
4551 printf("%s [OPTIONS...] {COMMAND}\n\n"
4552 "Send control commands to the init daemon.\n\n"
4553 " --help Show this help\n"
4554 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
4556 " 0 Power-off the machine\n"
4557 " 6 Reboot the machine\n"
4558 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4559 " 1, s, S Enter rescue mode\n"
4560 " q, Q Reload init daemon configuration\n"
4561 " u, U Reexecute init daemon\n",
4562 program_invocation_short_name);
4567 static int runlevel_help(void) {
4569 printf("%s [OPTIONS...]\n\n"
4570 "Prints the previous and current runlevel of the init system.\n\n"
4571 " --help Show this help\n",
4572 program_invocation_short_name);
4577 static int systemctl_parse_argv(int argc, char *argv[]) {
4581 ARG_IGNORE_DEPENDENCIES,
4597 ARG_NO_ASK_PASSWORD,
4604 static const struct option options[] = {
4605 { "help", no_argument, NULL, 'h' },
4606 { "version", no_argument, NULL, ARG_VERSION },
4607 { "type", required_argument, NULL, 't' },
4608 { "property", required_argument, NULL, 'p' },
4609 { "all", no_argument, NULL, 'a' },
4610 { "failed", no_argument, NULL, ARG_FAILED },
4611 { "full", no_argument, NULL, ARG_FULL },
4612 { "fail", no_argument, NULL, ARG_FAIL },
4613 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES },
4614 { "user", no_argument, NULL, ARG_USER },
4615 { "system", no_argument, NULL, ARG_SYSTEM },
4616 { "global", no_argument, NULL, ARG_GLOBAL },
4617 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4618 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
4619 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
4620 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4621 { "quiet", no_argument, NULL, 'q' },
4622 { "order", no_argument, NULL, ARG_ORDER },
4623 { "require", no_argument, NULL, ARG_REQUIRE },
4624 { "root", required_argument, NULL, ARG_ROOT },
4625 { "force", no_argument, NULL, ARG_FORCE },
4626 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
4627 { "kill-mode", required_argument, NULL, ARG_KILL_MODE }, /* undocumented on purpose */
4628 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4629 { "signal", required_argument, NULL, 's' },
4630 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
4631 { "host", required_argument, NULL, 'H' },
4632 { "privileged",no_argument, NULL, 'P' },
4633 { "runtime", no_argument, NULL, ARG_RUNTIME },
4634 { "lines", required_argument, NULL, 'n' },
4635 { "follow", no_argument, NULL, ARG_FOLLOW },
4636 { "output", required_argument, NULL, 'o' },
4637 { NULL, 0, NULL, 0 }
4645 while ((c = getopt_long(argc, argv, "ht:p:aqfs:H:Pn:o:", options, NULL)) >= 0) {
4654 puts(PACKAGE_STRING);
4656 puts(SYSTEMD_FEATURES);
4666 if (!(l = strv_append(arg_property, optarg)))
4669 strv_free(arg_property);
4672 /* If the user asked for a particular
4673 * property, show it to him, even if it is
4684 arg_job_mode = "fail";
4687 case ARG_IGNORE_DEPENDENCIES:
4688 arg_job_mode = "ignore-dependencies";
4692 arg_scope = UNIT_FILE_USER;
4696 arg_scope = UNIT_FILE_SYSTEM;
4700 arg_scope = UNIT_FILE_GLOBAL;
4704 arg_no_block = true;
4708 arg_no_legend = true;
4712 arg_no_pager = true;
4720 arg_dot = DOT_ORDER;
4724 arg_dot = DOT_REQUIRE;
4752 /* -f is short for both --follow and --force! */
4758 arg_no_reload = true;
4762 arg_kill_who = optarg;
4766 arg_kill_mode = optarg;
4770 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
4771 log_error("Failed to parse signal string %s.", optarg);
4776 case ARG_NO_ASK_PASSWORD:
4777 arg_ask_password = false;
4781 arg_transport = TRANSPORT_POLKIT;
4785 arg_transport = TRANSPORT_SSH;
4794 if (safe_atou(optarg, &arg_lines) < 0) {
4795 log_error("Failed to parse lines '%s'", optarg);
4801 arg_output = output_mode_from_string(optarg);
4802 if (arg_output < 0) {
4803 log_error("Unknown output '%s'.", optarg);
4812 log_error("Unknown option code %c", c);
4817 if (arg_transport != TRANSPORT_NORMAL && arg_scope != UNIT_FILE_SYSTEM) {
4818 log_error("Cannot access user instance remotely.");
4825 static int halt_parse_argv(int argc, char *argv[]) {
4834 static const struct option options[] = {
4835 { "help", no_argument, NULL, ARG_HELP },
4836 { "halt", no_argument, NULL, ARG_HALT },
4837 { "poweroff", no_argument, NULL, 'p' },
4838 { "reboot", no_argument, NULL, ARG_REBOOT },
4839 { "force", no_argument, NULL, 'f' },
4840 { "wtmp-only", no_argument, NULL, 'w' },
4841 { "no-wtmp", no_argument, NULL, 'd' },
4842 { "no-sync", no_argument, NULL, 'n' },
4843 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4844 { NULL, 0, NULL, 0 }
4852 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4853 if (runlevel == '0' || runlevel == '6')
4856 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4864 arg_action = ACTION_HALT;
4868 if (arg_action != ACTION_REBOOT)
4869 arg_action = ACTION_POWEROFF;
4873 arg_action = ACTION_REBOOT;
4898 /* Compatibility nops */
4905 log_error("Unknown option code %c", c);
4910 if (optind < argc) {
4911 log_error("Too many arguments.");
4918 static int parse_time_spec(const char *t, usec_t *_u) {
4922 if (streq(t, "now"))
4924 else if (!strchr(t, ':')) {
4927 if (safe_atou64(t, &u) < 0)
4930 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4939 hour = strtol(t, &e, 10);
4940 if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
4943 minute = strtol(e+1, &e, 10);
4944 if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
4947 n = now(CLOCK_REALTIME);
4948 s = (time_t) (n / USEC_PER_SEC);
4951 assert_se(localtime_r(&s, &tm));
4953 tm.tm_hour = (int) hour;
4954 tm.tm_min = (int) minute;
4957 assert_se(s = mktime(&tm));
4959 *_u = (usec_t) s * USEC_PER_SEC;
4962 *_u += USEC_PER_DAY;
4968 static int shutdown_parse_argv(int argc, char *argv[]) {
4975 static const struct option options[] = {
4976 { "help", no_argument, NULL, ARG_HELP },
4977 { "halt", no_argument, NULL, 'H' },
4978 { "poweroff", no_argument, NULL, 'P' },
4979 { "reboot", no_argument, NULL, 'r' },
4980 { "kexec", no_argument, NULL, 'K' }, /* not documented extension */
4981 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4982 { NULL, 0, NULL, 0 }
4990 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
4998 arg_action = ACTION_HALT;
5002 arg_action = ACTION_POWEROFF;
5007 arg_action = ACTION_KEXEC;
5009 arg_action = ACTION_REBOOT;
5013 arg_action = ACTION_KEXEC;
5017 if (arg_action != ACTION_HALT)
5018 arg_action = ACTION_POWEROFF;
5031 /* Compatibility nops */
5035 arg_action = ACTION_CANCEL_SHUTDOWN;
5042 log_error("Unknown option code %c", c);
5047 if (argc > optind) {
5048 r = parse_time_spec(argv[optind], &arg_when);
5050 log_error("Failed to parse time specification: %s", argv[optind]);
5054 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
5056 /* We skip the time argument */
5057 if (argc > optind + 1)
5058 arg_wall = argv + optind + 1;
5065 static int telinit_parse_argv(int argc, char *argv[]) {
5072 static const struct option options[] = {
5073 { "help", no_argument, NULL, ARG_HELP },
5074 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5075 { NULL, 0, NULL, 0 }
5078 static const struct {
5082 { '0', ACTION_POWEROFF },
5083 { '6', ACTION_REBOOT },
5084 { '1', ACTION_RESCUE },
5085 { '2', ACTION_RUNLEVEL2 },
5086 { '3', ACTION_RUNLEVEL3 },
5087 { '4', ACTION_RUNLEVEL4 },
5088 { '5', ACTION_RUNLEVEL5 },
5089 { 's', ACTION_RESCUE },
5090 { 'S', ACTION_RESCUE },
5091 { 'q', ACTION_RELOAD },
5092 { 'Q', ACTION_RELOAD },
5093 { 'u', ACTION_REEXEC },
5094 { 'U', ACTION_REEXEC }
5103 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5118 log_error("Unknown option code %c", c);
5123 if (optind >= argc) {
5128 if (optind + 1 < argc) {
5129 log_error("Too many arguments.");
5133 if (strlen(argv[optind]) != 1) {
5134 log_error("Expected single character argument.");
5138 for (i = 0; i < ELEMENTSOF(table); i++)
5139 if (table[i].from == argv[optind][0])
5142 if (i >= ELEMENTSOF(table)) {
5143 log_error("Unknown command %s.", argv[optind]);
5147 arg_action = table[i].to;
5154 static int runlevel_parse_argv(int argc, char *argv[]) {
5160 static const struct option options[] = {
5161 { "help", no_argument, NULL, ARG_HELP },
5162 { NULL, 0, NULL, 0 }
5170 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5181 log_error("Unknown option code %c", c);
5186 if (optind < argc) {
5187 log_error("Too many arguments.");
5194 static int parse_argv(int argc, char *argv[]) {
5198 if (program_invocation_short_name) {
5200 if (strstr(program_invocation_short_name, "halt")) {
5201 arg_action = ACTION_HALT;
5202 return halt_parse_argv(argc, argv);
5203 } else if (strstr(program_invocation_short_name, "poweroff")) {
5204 arg_action = ACTION_POWEROFF;
5205 return halt_parse_argv(argc, argv);
5206 } else if (strstr(program_invocation_short_name, "reboot")) {
5208 arg_action = ACTION_KEXEC;
5210 arg_action = ACTION_REBOOT;
5211 return halt_parse_argv(argc, argv);
5212 } else if (strstr(program_invocation_short_name, "shutdown")) {
5213 arg_action = ACTION_POWEROFF;
5214 return shutdown_parse_argv(argc, argv);
5215 } else if (strstr(program_invocation_short_name, "init")) {
5217 if (sd_booted() > 0) {
5218 arg_action = ACTION_INVALID;
5219 return telinit_parse_argv(argc, argv);
5221 /* Hmm, so some other init system is
5222 * running, we need to forward this
5223 * request to it. For now we simply
5224 * guess that it is Upstart. */
5226 execv("/lib/upstart/telinit", argv);
5228 log_error("Couldn't find an alternative telinit implementation to spawn.");
5232 } else if (strstr(program_invocation_short_name, "runlevel")) {
5233 arg_action = ACTION_RUNLEVEL;
5234 return runlevel_parse_argv(argc, argv);
5238 arg_action = ACTION_SYSTEMCTL;
5239 return systemctl_parse_argv(argc, argv);
5242 static int action_to_runlevel(void) {
5244 static const char table[_ACTION_MAX] = {
5245 [ACTION_HALT] = '0',
5246 [ACTION_POWEROFF] = '0',
5247 [ACTION_REBOOT] = '6',
5248 [ACTION_RUNLEVEL2] = '2',
5249 [ACTION_RUNLEVEL3] = '3',
5250 [ACTION_RUNLEVEL4] = '4',
5251 [ACTION_RUNLEVEL5] = '5',
5252 [ACTION_RESCUE] = '1'
5255 assert(arg_action < _ACTION_MAX);
5257 return table[arg_action];
5260 static int talk_upstart(void) {
5261 DBusMessage *m = NULL, *reply = NULL;
5263 int previous, rl, r;
5265 env1_buf[] = "RUNLEVEL=X",
5266 env2_buf[] = "PREVLEVEL=X";
5267 char *env1 = env1_buf, *env2 = env2_buf;
5268 const char *emit = "runlevel";
5269 dbus_bool_t b_false = FALSE;
5270 DBusMessageIter iter, sub;
5271 DBusConnection *bus;
5273 dbus_error_init(&error);
5275 if (!(rl = action_to_runlevel()))
5278 if (utmp_get_runlevel(&previous, NULL) < 0)
5281 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
5282 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
5287 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
5292 if ((r = bus_check_peercred(bus)) < 0) {
5293 log_error("Failed to verify owner of bus.");
5297 if (!(m = dbus_message_new_method_call(
5298 "com.ubuntu.Upstart",
5299 "/com/ubuntu/Upstart",
5300 "com.ubuntu.Upstart0_6",
5303 log_error("Could not allocate message.");
5308 dbus_message_iter_init_append(m, &iter);
5310 env1_buf[sizeof(env1_buf)-2] = rl;
5311 env2_buf[sizeof(env2_buf)-2] = previous;
5313 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
5314 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
5315 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
5316 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
5317 !dbus_message_iter_close_container(&iter, &sub) ||
5318 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
5319 log_error("Could not append arguments to message.");
5324 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
5326 if (error_is_no_service(&error)) {
5331 log_error("Failed to issue method call: %s", bus_error_message(&error));
5340 dbus_message_unref(m);
5343 dbus_message_unref(reply);
5346 dbus_connection_flush(bus);
5347 dbus_connection_close(bus);
5348 dbus_connection_unref(bus);
5351 dbus_error_free(&error);
5356 static int talk_initctl(void) {
5357 struct init_request request;
5361 if (!(rl = action_to_runlevel()))
5365 request.magic = INIT_MAGIC;
5366 request.sleeptime = 0;
5367 request.cmd = INIT_CMD_RUNLVL;
5368 request.runlevel = rl;
5370 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
5372 if (errno == ENOENT)
5375 log_error("Failed to open "INIT_FIFO": %m");
5380 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
5381 close_nointr_nofail(fd);
5384 log_error("Failed to write to "INIT_FIFO": %m");
5385 return errno ? -errno : -EIO;
5391 static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
5393 static const struct {
5401 int (* const dispatch)(DBusConnection *bus, char **args);
5403 { "list-units", LESS, 1, list_units },
5404 { "list-unit-files", EQUAL, 1, list_unit_files },
5405 { "list-jobs", EQUAL, 1, list_jobs },
5406 { "clear-jobs", EQUAL, 1, daemon_reload },
5407 { "load", MORE, 2, load_unit },
5408 { "cancel", MORE, 2, cancel_job },
5409 { "start", MORE, 2, start_unit },
5410 { "stop", MORE, 2, start_unit },
5411 { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5412 { "reload", MORE, 2, start_unit },
5413 { "restart", MORE, 2, start_unit },
5414 { "try-restart", MORE, 2, start_unit },
5415 { "reload-or-restart", MORE, 2, start_unit },
5416 { "reload-or-try-restart", MORE, 2, start_unit },
5417 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
5418 { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5419 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
5420 { "isolate", EQUAL, 2, start_unit },
5421 { "kill", MORE, 2, kill_unit },
5422 { "is-active", MORE, 2, check_unit },
5423 { "check", MORE, 2, check_unit },
5424 { "show", MORE, 1, show },
5425 { "status", MORE, 2, show },
5426 { "help", MORE, 2, show },
5427 { "dump", EQUAL, 1, dump },
5428 { "dot", EQUAL, 1, dot },
5429 { "snapshot", LESS, 2, snapshot },
5430 { "delete", MORE, 2, delete_snapshot },
5431 { "daemon-reload", EQUAL, 1, daemon_reload },
5432 { "daemon-reexec", EQUAL, 1, daemon_reload },
5433 { "show-environment", EQUAL, 1, show_enviroment },
5434 { "set-environment", MORE, 2, set_environment },
5435 { "unset-environment", MORE, 2, set_environment },
5436 { "halt", EQUAL, 1, start_special },
5437 { "poweroff", EQUAL, 1, start_special },
5438 { "reboot", EQUAL, 1, start_special },
5439 { "kexec", EQUAL, 1, start_special },
5440 { "suspend", EQUAL, 1, start_special },
5441 { "hibernate", EQUAL, 1, start_special },
5442 { "default", EQUAL, 1, start_special },
5443 { "rescue", EQUAL, 1, start_special },
5444 { "emergency", EQUAL, 1, start_special },
5445 { "exit", EQUAL, 1, start_special },
5446 { "reset-failed", MORE, 1, reset_failed },
5447 { "enable", MORE, 2, enable_unit },
5448 { "disable", MORE, 2, enable_unit },
5449 { "is-enabled", MORE, 2, unit_is_enabled },
5450 { "reenable", MORE, 2, enable_unit },
5451 { "preset", MORE, 2, enable_unit },
5452 { "mask", MORE, 2, enable_unit },
5453 { "unmask", MORE, 2, enable_unit },
5454 { "link", MORE, 2, enable_unit },
5455 { "switch-root", MORE, 2, switch_root },
5465 left = argc - optind;
5468 /* Special rule: no arguments means "list-units" */
5471 if (streq(argv[optind], "help") && !argv[optind+1]) {
5472 log_error("This command expects one or more "
5473 "unit names. Did you mean --help?");
5477 for (i = 0; i < ELEMENTSOF(verbs); i++)
5478 if (streq(argv[optind], verbs[i].verb))
5481 if (i >= ELEMENTSOF(verbs)) {
5482 log_error("Unknown operation %s", argv[optind]);
5487 switch (verbs[i].argc_cmp) {
5490 if (left != verbs[i].argc) {
5491 log_error("Invalid number of arguments.");
5498 if (left < verbs[i].argc) {
5499 log_error("Too few arguments.");
5506 if (left > verbs[i].argc) {
5507 log_error("Too many arguments.");
5514 assert_not_reached("Unknown comparison operator.");
5517 /* Require a bus connection for all operations but
5519 if (!streq(verbs[i].verb, "enable") &&
5520 !streq(verbs[i].verb, "disable") &&
5521 !streq(verbs[i].verb, "is-enabled") &&
5522 !streq(verbs[i].verb, "list-unit-files") &&
5523 !streq(verbs[i].verb, "reenable") &&
5524 !streq(verbs[i].verb, "preset") &&
5525 !streq(verbs[i].verb, "mask") &&
5526 !streq(verbs[i].verb, "unmask") &&
5527 !streq(verbs[i].verb, "link")) {
5529 if (running_in_chroot() > 0) {
5530 log_info("Running in chroot, ignoring request.");
5534 if (((!streq(verbs[i].verb, "reboot") &&
5535 !streq(verbs[i].verb, "halt") &&
5536 !streq(verbs[i].verb, "poweroff")) || arg_force <= 0) && !bus) {
5537 log_error("Failed to get D-Bus connection: %s",
5538 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5544 if (!bus && !avoid_bus()) {
5545 log_error("Failed to get D-Bus connection: %s",
5546 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5551 return verbs[i].dispatch(bus, argv + optind);
5554 static int send_shutdownd(usec_t t, char mode, bool dry_run, bool warn, const char *message) {
5556 struct msghdr msghdr;
5557 struct iovec iovec[2];
5558 union sockaddr_union sockaddr;
5559 struct sd_shutdown_command c;
5561 fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
5568 c.dry_run = dry_run;
5572 sockaddr.sa.sa_family = AF_UNIX;
5573 strncpy(sockaddr.un.sun_path, "/run/systemd/shutdownd", sizeof(sockaddr.un.sun_path));
5576 msghdr.msg_name = &sockaddr;
5577 msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + sizeof("/run/systemd/shutdownd") - 1;
5580 iovec[0].iov_base = (char*) &c;
5581 iovec[0].iov_len = offsetof(struct sd_shutdown_command, wall_message);
5583 if (isempty(message))
5584 msghdr.msg_iovlen = 1;
5586 iovec[1].iov_base = (char*) message;
5587 iovec[1].iov_len = strlen(message);
5588 msghdr.msg_iovlen = 2;
5590 msghdr.msg_iov = iovec;
5592 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
5593 close_nointr_nofail(fd);
5597 close_nointr_nofail(fd);
5601 static int reload_with_fallback(DBusConnection *bus) {
5604 /* First, try systemd via D-Bus. */
5605 if (daemon_reload(bus, NULL) >= 0)
5609 /* Nothing else worked, so let's try signals */
5610 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5612 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5613 log_error("kill() failed: %m");
5620 static int start_with_fallback(DBusConnection *bus) {
5623 /* First, try systemd via D-Bus. */
5624 if (start_unit(bus, NULL) >= 0)
5628 /* Hmm, talking to systemd via D-Bus didn't work. Then
5629 * let's try to talk to Upstart via D-Bus. */
5630 if (talk_upstart() > 0)
5633 /* Nothing else worked, so let's try
5635 if (talk_initctl() > 0)
5638 log_error("Failed to talk to init daemon.");
5642 warn_wall(arg_action);
5646 static void halt_now(enum action a) {
5648 /* Make sure C-A-D is handled by the kernel from this
5650 reboot(RB_ENABLE_CAD);
5655 log_info("Halting.");
5656 reboot(RB_HALT_SYSTEM);
5659 case ACTION_POWEROFF:
5660 log_info("Powering off.");
5661 reboot(RB_POWER_OFF);
5665 log_info("Rebooting.");
5666 reboot(RB_AUTOBOOT);
5670 assert_not_reached("Unknown halt action.");
5673 assert_not_reached("Uh? This shouldn't happen.");
5676 static int halt_main(DBusConnection *bus) {
5679 if (geteuid() != 0) {
5680 /* Try logind if we are a normal user and no special
5681 * mode applies. Maybe PolicyKit allows us to shutdown
5684 if (arg_when <= 0 &&
5687 (arg_action == ACTION_POWEROFF ||
5688 arg_action == ACTION_REBOOT)) {
5689 r = reboot_with_logind(bus, arg_action);
5694 log_error("Must be root.");
5701 m = strv_join(arg_wall, " ");
5702 r = send_shutdownd(arg_when,
5703 arg_action == ACTION_HALT ? 'H' :
5704 arg_action == ACTION_POWEROFF ? 'P' :
5705 arg_action == ACTION_KEXEC ? 'K' :
5713 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
5715 char date[FORMAT_TIMESTAMP_MAX];
5717 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
5718 format_timestamp(date, sizeof(date), arg_when));
5723 if (!arg_dry && !arg_force)
5724 return start_with_fallback(bus);
5727 if (sd_booted() > 0)
5728 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
5730 r = utmp_put_shutdown();
5732 log_warning("Failed to write utmp record: %s", strerror(-r));
5742 halt_now(arg_action);
5743 /* We should never reach this. */
5747 static int runlevel_main(void) {
5748 int r, runlevel, previous;
5750 r = utmp_get_runlevel(&runlevel, &previous);
5757 previous <= 0 ? 'N' : previous,
5758 runlevel <= 0 ? 'N' : runlevel);
5763 int main(int argc, char*argv[]) {
5764 int r, retval = EXIT_FAILURE;
5765 DBusConnection *bus = NULL;
5768 dbus_error_init(&error);
5770 log_parse_environment();
5773 r = parse_argv(argc, argv);
5777 retval = EXIT_SUCCESS;
5781 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5782 * let's shortcut this */
5783 if (arg_action == ACTION_RUNLEVEL) {
5784 r = runlevel_main();
5785 retval = r < 0 ? EXIT_FAILURE : r;
5789 if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
5790 log_info("Running in chroot, ignoring request.");
5796 if (arg_transport == TRANSPORT_NORMAL)
5797 bus_connect(arg_scope == UNIT_FILE_SYSTEM ? DBUS_BUS_SYSTEM : DBUS_BUS_SESSION, &bus, &private_bus, &error);
5798 else if (arg_transport == TRANSPORT_POLKIT) {
5799 bus_connect_system_polkit(&bus, &error);
5800 private_bus = false;
5801 } else if (arg_transport == TRANSPORT_SSH) {
5802 bus_connect_system_ssh(NULL, arg_host, &bus, &error);
5803 private_bus = false;
5805 assert_not_reached("Uh, invalid transport...");
5808 switch (arg_action) {
5810 case ACTION_SYSTEMCTL:
5811 r = systemctl_main(bus, argc, argv, &error);
5815 case ACTION_POWEROFF:
5821 case ACTION_RUNLEVEL2:
5822 case ACTION_RUNLEVEL3:
5823 case ACTION_RUNLEVEL4:
5824 case ACTION_RUNLEVEL5:
5826 case ACTION_EMERGENCY:
5827 case ACTION_DEFAULT:
5828 r = start_with_fallback(bus);
5833 r = reload_with_fallback(bus);
5836 case ACTION_CANCEL_SHUTDOWN:
5837 r = send_shutdownd(0, 0, false, false, NULL);
5840 case ACTION_INVALID:
5841 case ACTION_RUNLEVEL:
5843 assert_not_reached("Unknown action");
5846 retval = r < 0 ? EXIT_FAILURE : r;
5850 dbus_connection_flush(bus);
5851 dbus_connection_close(bus);
5852 dbus_connection_unref(bus);
5855 dbus_error_free(&error);
5859 strv_free(arg_property);
5862 ask_password_agent_close();
5863 polkit_agent_close();