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 const char *arg_load_state = NULL;
69 static char **arg_property = NULL;
70 static bool arg_all = false;
71 static const char *arg_job_mode = "replace";
72 static UnitFileScope arg_scope = UNIT_FILE_SYSTEM;
73 static bool arg_no_block = false;
74 static bool arg_no_legend = false;
75 static bool arg_no_pager = false;
76 static bool arg_no_wtmp = false;
77 static bool arg_no_sync = false;
78 static bool arg_no_wall = false;
79 static bool arg_no_reload = false;
80 static bool arg_dry = false;
81 static bool arg_quiet = false;
82 static bool arg_full = false;
83 static int arg_force = 0;
84 static bool arg_ask_password = true;
85 static bool arg_failed = false;
86 static bool arg_runtime = false;
87 static char **arg_wall = NULL;
88 static const char *arg_kill_who = 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_load_state || streq(u->load_state, arg_load_state)) &&
341 (arg_all || !(streq(u->active_state, "inactive")
342 || u->following[0]) || u->job_id > 0);
345 static void output_units_list(const struct unit_info *unit_infos, unsigned c) {
346 unsigned id_len, max_id_len, active_len, sub_len, job_len, desc_len, n_shown = 0;
347 const struct unit_info *u;
349 max_id_len = sizeof("UNIT")-1;
350 active_len = sizeof("ACTIVE")-1;
351 sub_len = sizeof("SUB")-1;
352 job_len = sizeof("JOB")-1;
355 for (u = unit_infos; u < unit_infos + c; u++) {
356 if (!output_show_unit(u))
359 max_id_len = MAX(max_id_len, strlen(u->id));
360 active_len = MAX(active_len, strlen(u->active_state));
361 sub_len = MAX(sub_len, strlen(u->sub_state));
363 job_len = MAX(job_len, strlen(u->job_type));
368 id_len = MIN(max_id_len, 25);
369 basic_len = 5 + id_len + 6 + active_len + sub_len + job_len;
370 if (basic_len < (unsigned) columns()) {
371 unsigned extra_len, incr;
372 extra_len = columns() - basic_len;
373 /* Either UNIT already got 25, or is fully satisfied.
374 * Grant up to 25 to DESC now. */
375 incr = MIN(extra_len, 25);
378 /* split the remaining space between UNIT and DESC,
379 * but do not give UNIT more than it needs. */
381 incr = MIN(extra_len / 2, max_id_len - id_len);
383 desc_len += extra_len - incr;
389 if (!arg_no_legend) {
390 printf("%-*s %-6s %-*s %-*s %-*s ", id_len, "UNIT", "LOAD",
391 active_len, "ACTIVE", sub_len, "SUB", job_len, "JOB");
392 if (!arg_full && arg_no_pager)
393 printf("%.*s\n", desc_len, "DESCRIPTION");
395 printf("%s\n", "DESCRIPTION");
398 for (u = unit_infos; u < unit_infos + c; u++) {
400 const char *on_loaded, *off_loaded;
401 const char *on_active, *off_active;
403 if (!output_show_unit(u))
408 if (streq(u->load_state, "error")) {
409 on_loaded = ansi_highlight_red(true);
410 off_loaded = ansi_highlight_red(false);
412 on_loaded = off_loaded = "";
414 if (streq(u->active_state, "failed")) {
415 on_active = ansi_highlight_red(true);
416 off_active = ansi_highlight_red(false);
418 on_active = off_active = "";
420 e = arg_full ? NULL : ellipsize(u->id, id_len, 33);
422 printf("%-*s %s%-6s%s %s%-*s %-*s%s %-*s ",
423 id_len, e ? e : u->id,
424 on_loaded, u->load_state, off_loaded,
425 on_active, active_len, u->active_state,
426 sub_len, u->sub_state, off_active,
427 job_len, u->job_id ? u->job_type : "");
428 if (!arg_full && arg_no_pager)
429 printf("%.*s\n", desc_len, u->description);
431 printf("%s\n", u->description);
436 if (!arg_no_legend) {
437 printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
438 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
439 "SUB = The low-level unit activation state, values depend on unit type.\n"
440 "JOB = Pending job for the unit.\n");
443 printf("\n%u units listed.\n", n_shown);
445 printf("\n%u units listed. Pass --all to see inactive units, too.\n", n_shown);
449 static int list_units(DBusConnection *bus, char **args) {
450 DBusMessage *m = NULL, *reply = NULL;
453 DBusMessageIter iter, sub, sub2;
454 unsigned c = 0, n_units = 0;
455 struct unit_info *unit_infos = NULL;
457 dbus_error_init(&error);
461 pager_open_if_enabled();
463 if (!(m = dbus_message_new_method_call(
464 "org.freedesktop.systemd1",
465 "/org/freedesktop/systemd1",
466 "org.freedesktop.systemd1.Manager",
468 log_error("Could not allocate message.");
472 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
473 log_error("Failed to issue method call: %s", bus_error_message(&error));
478 if (!dbus_message_iter_init(reply, &iter) ||
479 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
480 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
481 log_error("Failed to parse reply.");
486 dbus_message_iter_recurse(&iter, &sub);
488 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
491 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
492 log_error("Failed to parse reply.");
500 n_units = MAX(2*c, 16);
501 w = realloc(unit_infos, sizeof(struct unit_info) * n_units);
504 log_error("Failed to allocate unit array.");
514 dbus_message_iter_recurse(&sub, &sub2);
516 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->id, true) < 0 ||
517 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->description, true) < 0 ||
518 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->load_state, true) < 0 ||
519 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->active_state, true) < 0 ||
520 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->sub_state, true) < 0 ||
521 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->following, true) < 0 ||
522 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->unit_path, true) < 0 ||
523 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &u->job_id, true) < 0 ||
524 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->job_type, true) < 0 ||
525 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->job_path, false) < 0) {
526 log_error("Failed to parse reply.");
531 dbus_message_iter_next(&sub);
536 qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info);
537 output_units_list(unit_infos, c);
544 dbus_message_unref(m);
547 dbus_message_unref(reply);
551 dbus_error_free(&error);
556 static int compare_unit_file_list(const void *a, const void *b) {
558 const UnitFileList *u = a, *v = b;
560 d1 = strrchr(u->path, '.');
561 d2 = strrchr(v->path, '.');
566 r = strcasecmp(d1, d2);
571 return strcasecmp(path_get_file_name(u->path), path_get_file_name(v->path));
574 static bool output_show_unit_file(const UnitFileList *u) {
577 return !arg_type || ((dot = strrchr(u->path, '.')) && streq(dot+1, arg_type));
580 static void output_unit_file_list(const UnitFileList *units, unsigned c) {
581 unsigned max_id_len, id_cols, state_cols, n_shown = 0;
582 const UnitFileList *u;
584 max_id_len = sizeof("UNIT FILE")-1;
585 state_cols = sizeof("STATE")-1;
586 for (u = units; u < units + c; u++) {
587 if (!output_show_unit_file(u))
590 max_id_len = MAX(max_id_len, strlen(path_get_file_name(u->path)));
591 state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state)));
596 id_cols = MIN(max_id_len, 25);
597 basic_cols = 1 + id_cols + state_cols;
598 if (basic_cols < (unsigned) columns())
599 id_cols += MIN(columns() - basic_cols, max_id_len - id_cols);
601 id_cols = max_id_len;
604 printf("%-*s %-*s\n", id_cols, "UNIT FILE", state_cols, "STATE");
606 for (u = units; u < units + c; u++) {
608 const char *on, *off;
611 if (!output_show_unit_file(u))
616 if (u->state == UNIT_FILE_MASKED ||
617 u->state == UNIT_FILE_MASKED_RUNTIME ||
618 u->state == UNIT_FILE_DISABLED) {
619 on = ansi_highlight_red(true);
620 off = ansi_highlight_red(false);
621 } else if (u->state == UNIT_FILE_ENABLED) {
622 on = ansi_highlight_green(true);
623 off = ansi_highlight_green(false);
627 id = path_get_file_name(u->path);
629 e = arg_full ? NULL : ellipsize(id, id_cols, 33);
631 printf("%-*s %s%-*s%s\n",
633 on, state_cols, unit_file_state_to_string(u->state), off);
639 printf("\n%u unit files listed.\n", n_shown);
642 static int list_unit_files(DBusConnection *bus, char **args) {
643 DBusMessage *m = NULL, *reply = NULL;
646 DBusMessageIter iter, sub, sub2;
647 unsigned c = 0, n_units = 0;
648 UnitFileList *units = NULL;
650 dbus_error_init(&error);
652 pager_open_if_enabled();
659 h = hashmap_new(string_hash_func, string_compare_func);
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);
677 HASHMAP_FOREACH(u, h, i) {
678 memcpy(units + c++, u, sizeof(UnitFileList));
686 m = dbus_message_new_method_call(
687 "org.freedesktop.systemd1",
688 "/org/freedesktop/systemd1",
689 "org.freedesktop.systemd1.Manager",
692 log_error("Could not allocate message.");
696 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
698 log_error("Failed to issue method call: %s", bus_error_message(&error));
703 if (!dbus_message_iter_init(reply, &iter) ||
704 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
705 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
706 log_error("Failed to parse reply.");
711 dbus_message_iter_recurse(&iter, &sub);
713 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
717 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
718 log_error("Failed to parse reply.");
726 n_units = MAX(2*c, 16);
727 w = realloc(units, sizeof(struct UnitFileList) * n_units);
730 log_error("Failed to allocate unit array.");
740 dbus_message_iter_recurse(&sub, &sub2);
742 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->path, true) < 0 ||
743 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, false) < 0) {
744 log_error("Failed to parse reply.");
749 u->state = unit_file_state_from_string(state);
751 dbus_message_iter_next(&sub);
757 qsort(units, c, sizeof(UnitFileList), compare_unit_file_list);
758 output_unit_file_list(units, c);
765 dbus_message_unref(m);
768 dbus_message_unref(reply);
772 dbus_error_free(&error);
777 static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) {
778 static const char * const colors[] = {
779 "Requires", "[color=\"black\"]",
780 "RequiresOverridable", "[color=\"black\"]",
781 "Requisite", "[color=\"darkblue\"]",
782 "RequisiteOverridable", "[color=\"darkblue\"]",
783 "Wants", "[color=\"grey66\"]",
784 "Conflicts", "[color=\"red\"]",
785 "ConflictedBy", "[color=\"red\"]",
786 "After", "[color=\"green\"]"
789 const char *c = NULL;
796 for (i = 0; i < ELEMENTSOF(colors); i += 2)
797 if (streq(colors[i], prop)) {
805 if (arg_dot != DOT_ALL)
806 if ((arg_dot == DOT_ORDER) != streq(prop, "After"))
809 switch (dbus_message_iter_get_arg_type(iter)) {
811 case DBUS_TYPE_ARRAY:
813 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
816 dbus_message_iter_recurse(iter, &sub);
818 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
821 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
822 dbus_message_iter_get_basic(&sub, &s);
823 printf("\t\"%s\"->\"%s\" %s;\n", name, s, c);
825 dbus_message_iter_next(&sub);
835 static int dot_one(DBusConnection *bus, const char *name, const char *path) {
836 DBusMessage *m = NULL, *reply = NULL;
837 const char *interface = "org.freedesktop.systemd1.Unit";
840 DBusMessageIter iter, sub, sub2, sub3;
845 dbus_error_init(&error);
847 if (!(m = dbus_message_new_method_call(
848 "org.freedesktop.systemd1",
850 "org.freedesktop.DBus.Properties",
852 log_error("Could not allocate message.");
857 if (!dbus_message_append_args(m,
858 DBUS_TYPE_STRING, &interface,
859 DBUS_TYPE_INVALID)) {
860 log_error("Could not append arguments to message.");
865 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
866 log_error("Failed to issue method call: %s", bus_error_message(&error));
871 if (!dbus_message_iter_init(reply, &iter) ||
872 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
873 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
874 log_error("Failed to parse reply.");
879 dbus_message_iter_recurse(&iter, &sub);
881 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
884 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
885 log_error("Failed to parse reply.");
890 dbus_message_iter_recurse(&sub, &sub2);
892 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
893 log_error("Failed to parse reply.");
898 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
899 log_error("Failed to parse reply.");
904 dbus_message_iter_recurse(&sub2, &sub3);
906 if (dot_one_property(name, prop, &sub3)) {
907 log_error("Failed to parse reply.");
912 dbus_message_iter_next(&sub);
919 dbus_message_unref(m);
922 dbus_message_unref(reply);
924 dbus_error_free(&error);
929 static int dot(DBusConnection *bus, char **args) {
930 DBusMessage *m = NULL, *reply = NULL;
933 DBusMessageIter iter, sub, sub2;
935 dbus_error_init(&error);
939 if (!(m = dbus_message_new_method_call(
940 "org.freedesktop.systemd1",
941 "/org/freedesktop/systemd1",
942 "org.freedesktop.systemd1.Manager",
944 log_error("Could not allocate message.");
948 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
949 log_error("Failed to issue method call: %s", bus_error_message(&error));
954 if (!dbus_message_iter_init(reply, &iter) ||
955 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
956 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
957 log_error("Failed to parse reply.");
962 printf("digraph systemd {\n");
964 dbus_message_iter_recurse(&iter, &sub);
965 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
966 const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path;
968 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
969 log_error("Failed to parse reply.");
974 dbus_message_iter_recurse(&sub, &sub2);
976 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
977 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
978 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
979 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
980 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
981 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 ||
982 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) {
983 log_error("Failed to parse reply.");
988 if ((r = dot_one(bus, id, unit_path)) < 0)
991 /* printf("\t\"%s\";\n", id); */
992 dbus_message_iter_next(&sub);
997 log_info(" Color legend: black = Requires\n"
998 " dark blue = Requisite\n"
999 " dark grey = Wants\n"
1000 " red = Conflicts\n"
1001 " green = After\n");
1004 log_notice("-- You probably want to process this output with graphviz' dot tool.\n"
1005 "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n");
1011 dbus_message_unref(m);
1014 dbus_message_unref(reply);
1016 dbus_error_free(&error);
1021 static int list_jobs(DBusConnection *bus, char **args) {
1022 DBusMessage *m = NULL, *reply = NULL;
1025 DBusMessageIter iter, sub, sub2;
1028 dbus_error_init(&error);
1032 pager_open_if_enabled();
1034 if (!(m = dbus_message_new_method_call(
1035 "org.freedesktop.systemd1",
1036 "/org/freedesktop/systemd1",
1037 "org.freedesktop.systemd1.Manager",
1039 log_error("Could not allocate message.");
1043 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1044 log_error("Failed to issue method call: %s", bus_error_message(&error));
1049 if (!dbus_message_iter_init(reply, &iter) ||
1050 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
1051 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
1052 log_error("Failed to parse reply.");
1057 dbus_message_iter_recurse(&iter, &sub);
1060 printf("%4s %-25s %-15s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
1062 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1063 const char *name, *type, *state, *job_path, *unit_path;
1067 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
1068 log_error("Failed to parse reply.");
1073 dbus_message_iter_recurse(&sub, &sub2);
1075 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
1076 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
1077 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
1078 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
1079 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
1080 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
1081 log_error("Failed to parse reply.");
1086 e = arg_full ? NULL : ellipsize(name, 25, 33);
1087 printf("%4u %-25s %-15s %-7s\n", id, e ? e : name, type, state);
1092 dbus_message_iter_next(&sub);
1096 printf("\n%u jobs listed.\n", k);
1102 dbus_message_unref(m);
1105 dbus_message_unref(reply);
1107 dbus_error_free(&error);
1112 static int load_unit(DBusConnection *bus, char **args) {
1113 DBusMessage *m = NULL;
1118 dbus_error_init(&error);
1123 STRV_FOREACH(name, args+1) {
1128 if (!(m = dbus_message_new_method_call(
1129 "org.freedesktop.systemd1",
1130 "/org/freedesktop/systemd1",
1131 "org.freedesktop.systemd1.Manager",
1133 log_error("Could not allocate message.");
1138 n = unit_name_mangle(*name);
1139 b = dbus_message_append_args(m,
1140 DBUS_TYPE_STRING, n ? &n : name,
1144 log_error("Could not append arguments to message.");
1149 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
1151 log_error("Failed to issue method call: %s", bus_error_message(&error));
1156 dbus_message_unref(m);
1157 dbus_message_unref(reply);
1166 dbus_message_unref(m);
1168 dbus_error_free(&error);
1173 static int cancel_job(DBusConnection *bus, char **args) {
1174 DBusMessage *m = NULL, *reply = NULL;
1179 dbus_error_init(&error);
1184 if (strv_length(args) <= 1)
1185 return daemon_reload(bus, args);
1187 STRV_FOREACH(name, args+1) {
1191 if (!(m = dbus_message_new_method_call(
1192 "org.freedesktop.systemd1",
1193 "/org/freedesktop/systemd1",
1194 "org.freedesktop.systemd1.Manager",
1196 log_error("Could not allocate message.");
1201 if ((r = safe_atou(*name, &id)) < 0) {
1202 log_error("Failed to parse job id: %s", strerror(-r));
1206 assert_cc(sizeof(uint32_t) == sizeof(id));
1207 if (!dbus_message_append_args(m,
1208 DBUS_TYPE_UINT32, &id,
1209 DBUS_TYPE_INVALID)) {
1210 log_error("Could not append arguments to message.");
1215 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1216 log_error("Failed to issue method call: %s", bus_error_message(&error));
1221 if (!dbus_message_get_args(reply, &error,
1222 DBUS_TYPE_OBJECT_PATH, &path,
1223 DBUS_TYPE_INVALID)) {
1224 log_error("Failed to parse reply: %s", bus_error_message(&error));
1229 dbus_message_unref(m);
1230 if (!(m = dbus_message_new_method_call(
1231 "org.freedesktop.systemd1",
1233 "org.freedesktop.systemd1.Job",
1235 log_error("Could not allocate message.");
1240 dbus_message_unref(reply);
1241 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1242 log_error("Failed to issue method call: %s", bus_error_message(&error));
1247 dbus_message_unref(m);
1248 dbus_message_unref(reply);
1256 dbus_message_unref(m);
1259 dbus_message_unref(reply);
1261 dbus_error_free(&error);
1266 static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
1267 DBusMessage *m = NULL, *reply = NULL;
1268 dbus_bool_t b = FALSE;
1269 DBusMessageIter iter, sub;
1271 *interface = "org.freedesktop.systemd1.Unit",
1272 *property = "NeedDaemonReload",
1277 /* We ignore all errors here, since this is used to show a warning only */
1279 m = dbus_message_new_method_call(
1280 "org.freedesktop.systemd1",
1281 "/org/freedesktop/systemd1",
1282 "org.freedesktop.systemd1.Manager",
1287 n = unit_name_mangle(unit);
1288 k = dbus_message_append_args(m,
1289 DBUS_TYPE_STRING, n ? (const char**) &n : &unit,
1295 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL);
1299 if (!dbus_message_get_args(reply, NULL,
1300 DBUS_TYPE_OBJECT_PATH, &path,
1304 dbus_message_unref(m);
1305 m = dbus_message_new_method_call(
1306 "org.freedesktop.systemd1",
1308 "org.freedesktop.DBus.Properties",
1313 if (!dbus_message_append_args(m,
1314 DBUS_TYPE_STRING, &interface,
1315 DBUS_TYPE_STRING, &property,
1316 DBUS_TYPE_INVALID)) {
1320 dbus_message_unref(reply);
1321 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL);
1325 if (!dbus_message_iter_init(reply, &iter) ||
1326 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
1329 dbus_message_iter_recurse(&iter, &sub);
1331 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
1334 dbus_message_iter_get_basic(&sub, &b);
1338 dbus_message_unref(m);
1341 dbus_message_unref(reply);
1346 typedef struct WaitData {
1351 static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
1359 dbus_error_init(&error);
1361 log_debug("Got D-Bus request: %s.%s() on %s",
1362 dbus_message_get_interface(message),
1363 dbus_message_get_member(message),
1364 dbus_message_get_path(message));
1366 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
1367 log_error("Warning! D-Bus connection terminated.");
1368 dbus_connection_close(connection);
1370 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1372 const char *path, *result, *unit;
1373 dbus_bool_t success = true;
1375 if (dbus_message_get_args(message, &error,
1376 DBUS_TYPE_UINT32, &id,
1377 DBUS_TYPE_OBJECT_PATH, &path,
1378 DBUS_TYPE_STRING, &unit,
1379 DBUS_TYPE_STRING, &result,
1380 DBUS_TYPE_INVALID)) {
1383 p = set_remove(d->set, (char*) path);
1387 d->result = strdup(result);
1392 dbus_error_free(&error);
1393 if (dbus_message_get_args(message, &error,
1394 DBUS_TYPE_UINT32, &id,
1395 DBUS_TYPE_OBJECT_PATH, &path,
1396 DBUS_TYPE_STRING, &result,
1397 DBUS_TYPE_INVALID)) {
1400 /* Compatibility with older systemd versions <
1401 * 183 during upgrades. This should be dropped
1403 p = set_remove(d->set, (char*) path);
1407 d->result = strdup(result);
1412 dbus_error_free(&error);
1413 if (dbus_message_get_args(message, &error,
1414 DBUS_TYPE_UINT32, &id,
1415 DBUS_TYPE_OBJECT_PATH, &path,
1416 DBUS_TYPE_BOOLEAN, &success,
1417 DBUS_TYPE_INVALID)) {
1420 /* Compatibility with older systemd versions <
1421 * 19 during upgrades. This should be dropped
1424 p = set_remove(d->set, (char*) path);
1428 d->result = strdup("failed");
1434 log_error("Failed to parse message: %s", bus_error_message(&error));
1438 dbus_error_free(&error);
1439 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1442 static int enable_wait_for_jobs(DBusConnection *bus) {
1450 dbus_error_init(&error);
1451 dbus_bus_add_match(bus,
1453 "sender='org.freedesktop.systemd1',"
1454 "interface='org.freedesktop.systemd1.Manager',"
1455 "member='JobRemoved',"
1456 "path='/org/freedesktop/systemd1'",
1459 if (dbus_error_is_set(&error)) {
1460 log_error("Failed to add match: %s", bus_error_message(&error));
1461 dbus_error_free(&error);
1465 /* This is slightly dirty, since we don't undo the match registrations. */
1469 static int wait_for_jobs(DBusConnection *bus, Set *s) {
1479 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
1480 log_error("Failed to add filter.");
1485 while (!set_isempty(s) &&
1486 dbus_connection_read_write_dispatch(bus, -1))
1489 if (!arg_quiet && d.result) {
1490 if (streq(d.result, "timeout"))
1491 log_error("Job timed out.");
1492 else if (streq(d.result, "canceled"))
1493 log_error("Job canceled.");
1494 else if (streq(d.result, "dependency"))
1495 log_error("A dependency job failed. See system journal for details.");
1496 else if (!streq(d.result, "done") && !streq(d.result, "skipped"))
1497 log_error("Job failed. See system journal and 'systemctl status' for details.");
1500 if (streq_ptr(d.result, "timeout"))
1502 else if (streq_ptr(d.result, "canceled"))
1504 else if (!streq_ptr(d.result, "done") && !streq_ptr(d.result, "skipped"))
1512 /* This is slightly dirty, since we don't undo the filter registration. */
1517 static int check_one_unit(DBusConnection *bus, char *name, bool quiet) {
1518 DBusMessage *m = NULL, *reply = NULL;
1520 DBusMessageIter iter, sub;
1522 *interface = "org.freedesktop.systemd1.Unit",
1523 *property = "ActiveState";
1524 const char *path = NULL;
1526 int r = 3; /* According to LSB: "program is not running" */
1533 dbus_error_init(&error);
1535 m = dbus_message_new_method_call(
1536 "org.freedesktop.systemd1",
1537 "/org/freedesktop/systemd1",
1538 "org.freedesktop.systemd1.Manager",
1541 log_error("Could not allocate message.");
1546 n = unit_name_mangle(name);
1547 b = dbus_message_append_args(m,
1548 DBUS_TYPE_STRING, n ? &n : &name,
1552 log_error("Could not append arguments to message.");
1557 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
1559 /* Hmm, cannot figure out anything about this unit... */
1566 if (!dbus_message_get_args(reply, &error,
1567 DBUS_TYPE_OBJECT_PATH, &path,
1568 DBUS_TYPE_INVALID)) {
1569 log_error("Failed to parse reply: %s", bus_error_message(&error));
1574 dbus_message_unref(m);
1575 m = dbus_message_new_method_call(
1576 "org.freedesktop.systemd1",
1578 "org.freedesktop.DBus.Properties",
1581 log_error("Could not allocate message.");
1586 if (!dbus_message_append_args(m,
1587 DBUS_TYPE_STRING, &interface,
1588 DBUS_TYPE_STRING, &property,
1589 DBUS_TYPE_INVALID)) {
1590 log_error("Could not append arguments to message.");
1595 dbus_message_unref(reply);
1596 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
1598 log_error("Failed to issue method call: %s", bus_error_message(&error));
1603 if (!dbus_message_iter_init(reply, &iter) ||
1604 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1605 log_error("Failed to parse reply.");
1610 dbus_message_iter_recurse(&iter, &sub);
1612 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1613 log_error("Failed to parse reply.");
1618 dbus_message_iter_get_basic(&sub, &state);
1623 if (streq(state, "active") || streq(state, "reloading"))
1628 dbus_message_unref(m);
1631 dbus_message_unref(reply);
1633 dbus_error_free(&error);
1638 static void check_triggering_units(
1639 DBusConnection *bus,
1640 const char *unit_name) {
1643 DBusMessage *m = NULL, *reply = NULL;
1644 DBusMessageIter iter, sub;
1645 char *service_trigger = NULL;
1646 const char *interface = "org.freedesktop.systemd1.Unit",
1647 *triggered_by_property = "TriggeredBy";
1649 char *unit_path = NULL, *n = NULL;
1650 bool print_warning_label = true;
1652 dbus_error_init(&error);
1654 n = unit_name_mangle(unit_name);
1655 unit_path = unit_dbus_path_from_name(n ? n : unit_name);
1658 log_error("Could not allocate dbus path.");
1662 m = dbus_message_new_method_call("org.freedesktop.systemd1",
1664 "org.freedesktop.DBus.Properties",
1667 log_error("Could not allocate message.");
1671 if (!dbus_message_append_args(m,
1672 DBUS_TYPE_STRING, &interface,
1673 DBUS_TYPE_STRING, &triggered_by_property,
1674 DBUS_TYPE_INVALID)) {
1675 log_error("Could not append arguments to message.");
1679 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
1681 log_error("Failed to issue method call: %s", bus_error_message(&error));
1685 if (!dbus_message_iter_init(reply, &iter) ||
1686 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1687 log_error("Failed to parse reply: %s", bus_error_message(&error));
1692 dbus_message_iter_recurse(&iter, &sub);
1693 dbus_message_iter_recurse(&sub, &iter);
1696 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1699 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1700 log_error("Failed to parse reply: %s", bus_error_message(&error));
1704 dbus_message_iter_get_basic(&sub, &service_trigger);
1706 r = check_one_unit(bus, service_trigger, true);
1710 if (print_warning_label) {
1711 log_warning("Warning: Stopping %s, but it can still be activated by:", unit_name);
1712 print_warning_label = false;
1714 log_warning(" %s", service_trigger);
1717 dbus_message_iter_next(&sub);
1721 dbus_message_unref(m);
1724 dbus_message_unref(reply);
1726 dbus_error_free(&error);
1731 static int start_unit_one(
1732 DBusConnection *bus,
1739 DBusMessage *m = NULL, *reply = NULL;
1750 assert(arg_no_block || s);
1752 m = dbus_message_new_method_call(
1753 "org.freedesktop.systemd1",
1754 "/org/freedesktop/systemd1",
1755 "org.freedesktop.systemd1.Manager",
1758 log_error("Could not allocate message.");
1763 n = unit_name_mangle(name);
1764 b = dbus_message_append_args(m,
1765 DBUS_TYPE_STRING, n ? (const char **) &n : &name,
1766 DBUS_TYPE_STRING, &mode,
1770 log_error("Could not append arguments to message.");
1775 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error);
1778 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(error)) {
1779 /* There's always a fallback possible for
1780 * legacy actions. */
1785 log_error("Failed to issue method call: %s", bus_error_message(error));
1790 if (!dbus_message_get_args(reply, error,
1791 DBUS_TYPE_OBJECT_PATH, &path,
1792 DBUS_TYPE_INVALID)) {
1793 log_error("Failed to parse reply: %s", bus_error_message(error));
1798 if (need_daemon_reload(bus, name))
1799 log_warning("Warning: Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.",
1800 arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
1802 if (!arg_no_block) {
1805 if (!(p = strdup(path))) {
1806 log_error("Failed to duplicate path.");
1811 if ((r = set_put(s, p)) < 0) {
1813 log_error("Failed to add path to set.");
1818 /* When stopping a unit warn if it can still be triggered by
1819 * another active unit (socket, path, timer) */
1820 if (!arg_quiet && streq(method, "StopUnit"))
1821 check_triggering_units(bus, name);
1827 dbus_message_unref(m);
1830 dbus_message_unref(reply);
1835 static enum action verb_to_action(const char *verb) {
1836 if (streq(verb, "halt"))
1838 else if (streq(verb, "poweroff"))
1839 return ACTION_POWEROFF;
1840 else if (streq(verb, "reboot"))
1841 return ACTION_REBOOT;
1842 else if (streq(verb, "kexec"))
1843 return ACTION_KEXEC;
1844 else if (streq(verb, "rescue"))
1845 return ACTION_RESCUE;
1846 else if (streq(verb, "emergency"))
1847 return ACTION_EMERGENCY;
1848 else if (streq(verb, "default"))
1849 return ACTION_DEFAULT;
1850 else if (streq(verb, "exit"))
1852 else if (streq(verb, "suspend"))
1853 return ACTION_SUSPEND;
1854 else if (streq(verb, "hibernate"))
1855 return ACTION_HIBERNATE;
1857 return ACTION_INVALID;
1860 static int start_unit(DBusConnection *bus, char **args) {
1862 static const char * const table[_ACTION_MAX] = {
1863 [ACTION_HALT] = SPECIAL_HALT_TARGET,
1864 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
1865 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
1866 [ACTION_KEXEC] = SPECIAL_KEXEC_TARGET,
1867 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
1868 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
1869 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
1870 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
1871 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
1872 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
1873 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET,
1874 [ACTION_EXIT] = SPECIAL_EXIT_TARGET,
1875 [ACTION_SUSPEND] = SPECIAL_SUSPEND_TARGET,
1876 [ACTION_HIBERNATE] = SPECIAL_HIBERNATE_TARGET
1880 const char *method, *mode, *one_name;
1885 dbus_error_init(&error);
1889 ask_password_agent_open_if_enabled();
1891 if (arg_action == ACTION_SYSTEMCTL) {
1893 streq(args[0], "stop") ||
1894 streq(args[0], "condstop") ? "StopUnit" :
1895 streq(args[0], "reload") ? "ReloadUnit" :
1896 streq(args[0], "restart") ? "RestartUnit" :
1898 streq(args[0], "try-restart") ||
1899 streq(args[0], "condrestart") ? "TryRestartUnit" :
1901 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
1903 streq(args[0], "reload-or-try-restart") ||
1904 streq(args[0], "condreload") ||
1906 streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" :
1910 (streq(args[0], "isolate") ||
1911 streq(args[0], "rescue") ||
1912 streq(args[0], "emergency")) ? "isolate" : arg_job_mode;
1914 one_name = table[verb_to_action(args[0])];
1917 assert(arg_action < ELEMENTSOF(table));
1918 assert(table[arg_action]);
1920 method = "StartUnit";
1922 mode = (arg_action == ACTION_EMERGENCY ||
1923 arg_action == ACTION_RESCUE ||
1924 arg_action == ACTION_RUNLEVEL2 ||
1925 arg_action == ACTION_RUNLEVEL3 ||
1926 arg_action == ACTION_RUNLEVEL4 ||
1927 arg_action == ACTION_RUNLEVEL5) ? "isolate" : "replace";
1929 one_name = table[arg_action];
1932 if (!arg_no_block) {
1933 if ((ret = enable_wait_for_jobs(bus)) < 0) {
1934 log_error("Could not watch jobs: %s", strerror(-ret));
1938 if (!(s = set_new(string_hash_func, string_compare_func))) {
1939 log_error("Failed to allocate set.");
1946 if ((ret = start_unit_one(bus, method, one_name, mode, &error, s)) <= 0)
1949 STRV_FOREACH(name, args+1)
1950 if ((r = start_unit_one(bus, method, *name, mode, &error, s)) != 0) {
1951 ret = translate_bus_error_to_exit_status(r, &error);
1952 dbus_error_free(&error);
1957 if ((r = wait_for_jobs(bus, s)) < 0) {
1966 dbus_error_free(&error);
1971 /* Ask systemd-logind, which might grant access to unprivileged users
1972 * through PolicyKit */
1973 static int reboot_with_logind(DBusConnection *bus, enum action a) {
1976 DBusMessage *m = NULL, *reply = NULL;
1978 dbus_bool_t interactive = true;
1981 dbus_error_init(&error);
1983 polkit_agent_open_if_enabled();
1991 case ACTION_POWEROFF:
1992 method = "PowerOff";
1995 case ACTION_SUSPEND:
1999 case ACTION_HIBERNATE:
2000 method = "Hibernate";
2007 m = dbus_message_new_method_call(
2008 "org.freedesktop.login1",
2009 "/org/freedesktop/login1",
2010 "org.freedesktop.login1.Manager",
2013 log_error("Could not allocate message.");
2018 if (!dbus_message_append_args(m,
2019 DBUS_TYPE_BOOLEAN, &interactive,
2020 DBUS_TYPE_INVALID)) {
2021 log_error("Could not append arguments to message.");
2026 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
2028 if (error_is_no_service(&error)) {
2029 log_debug("Failed to issue method call: %s", bus_error_message(&error));
2034 if (dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
2035 log_debug("Failed to issue method call: %s", bus_error_message(&error));
2040 log_info("Failed to issue method call: %s", bus_error_message(&error));
2049 dbus_message_unref(m);
2052 dbus_message_unref(reply);
2054 dbus_error_free(&error);
2062 static int start_special(DBusConnection *bus, char **args) {
2068 a = verb_to_action(args[0]);
2070 if (arg_force >= 2 && geteuid() != 0) {
2071 log_error("Must be root.");
2075 if (arg_force >= 2 &&
2076 (a == ACTION_HALT ||
2077 a == ACTION_POWEROFF ||
2078 a == ACTION_REBOOT))
2081 if (arg_force >= 1 &&
2082 (a == ACTION_HALT ||
2083 a == ACTION_POWEROFF ||
2084 a == ACTION_REBOOT ||
2085 a == ACTION_KEXEC ||
2087 return daemon_reload(bus, args);
2089 /* first try logind, to allow authentication with polkit */
2090 if (geteuid() != 0 &&
2091 (a == ACTION_POWEROFF ||
2092 a == ACTION_REBOOT ||
2093 a == ACTION_SUSPEND ||
2094 a == ACTION_HIBERNATE)) {
2095 r = reboot_with_logind(bus, a);
2100 r = start_unit(bus, args);
2107 static int check_unit(DBusConnection *bus, char **args) {
2109 int r = 3; /* According to LSB: "program is not running" */
2114 STRV_FOREACH(name, args+1) {
2115 int state = check_one_unit(bus, *name, arg_quiet);
2125 static int kill_unit(DBusConnection *bus, char **args) {
2126 DBusMessage *m = NULL;
2134 dbus_error_init(&error);
2137 arg_kill_who = "all";
2139 STRV_FOREACH(name, args+1) {
2144 m = dbus_message_new_method_call(
2145 "org.freedesktop.systemd1",
2146 "/org/freedesktop/systemd1",
2147 "org.freedesktop.systemd1.Manager",
2150 log_error("Could not allocate message.");
2155 n = unit_name_mangle(*name);
2156 b = dbus_message_append_args(m,
2157 DBUS_TYPE_STRING, n ? &n : name,
2158 DBUS_TYPE_STRING, &arg_kill_who,
2159 DBUS_TYPE_INT32, &arg_signal,
2163 log_error("Could not append arguments to message.");
2168 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
2170 log_error("Failed to issue method call: %s", bus_error_message(&error));
2171 dbus_error_free(&error);
2175 dbus_message_unref(m);
2178 dbus_message_unref(reply);
2184 dbus_message_unref(m);
2186 dbus_error_free(&error);
2191 typedef struct ExecStatusInfo {
2199 usec_t start_timestamp;
2200 usec_t exit_timestamp;
2205 LIST_FIELDS(struct ExecStatusInfo, exec);
2208 static void exec_status_info_free(ExecStatusInfo *i) {
2217 static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
2218 uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
2219 DBusMessageIter sub2, sub3;
2223 int32_t code, status;
2229 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
2232 dbus_message_iter_recurse(sub, &sub2);
2234 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
2237 if (!(i->path = strdup(path)))
2240 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
2241 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
2245 dbus_message_iter_recurse(&sub2, &sub3);
2246 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
2247 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
2248 dbus_message_iter_next(&sub3);
2253 if (!(i->argv = new0(char*, n+1)))
2257 dbus_message_iter_recurse(&sub2, &sub3);
2258 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
2261 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
2262 dbus_message_iter_get_basic(&sub3, &s);
2263 dbus_message_iter_next(&sub3);
2265 if (!(i->argv[n++] = strdup(s)))
2269 if (!dbus_message_iter_next(&sub2) ||
2270 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
2271 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
2272 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp_monotonic, true) < 0 ||
2273 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
2274 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp_monotonic, true) < 0 ||
2275 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
2276 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
2277 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
2281 i->start_timestamp = (usec_t) start_timestamp;
2282 i->exit_timestamp = (usec_t) exit_timestamp;
2283 i->pid = (pid_t) pid;
2290 typedef struct UnitStatusInfo {
2292 const char *load_state;
2293 const char *active_state;
2294 const char *sub_state;
2295 const char *unit_file_state;
2297 const char *description;
2298 const char *following;
2300 char **documentation;
2302 const char *fragment_path;
2303 const char *source_path;
2304 const char *default_control_group;
2306 const char *load_error;
2309 usec_t inactive_exit_timestamp;
2310 usec_t inactive_exit_timestamp_monotonic;
2311 usec_t active_enter_timestamp;
2312 usec_t active_exit_timestamp;
2313 usec_t inactive_enter_timestamp;
2315 bool need_daemon_reload;
2320 const char *status_text;
2323 usec_t start_timestamp;
2324 usec_t exit_timestamp;
2326 int exit_code, exit_status;
2328 usec_t condition_timestamp;
2329 bool condition_result;
2332 unsigned n_accepted;
2333 unsigned n_connections;
2337 const char *sysfs_path;
2339 /* Mount, Automount */
2345 LIST_HEAD(ExecStatusInfo, exec);
2348 static void print_status_info(UnitStatusInfo *i) {
2350 const char *on, *off, *ss;
2352 char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
2353 char since2[FORMAT_TIMESTAMP_MAX], *s2;
2358 /* This shows pretty information about a unit. See
2359 * print_property() for a low-level property printer */
2361 printf("%s", strna(i->id));
2363 if (i->description && !streq_ptr(i->id, i->description))
2364 printf(" - %s", i->description);
2369 printf("\t Follow: unit currently follows state of %s\n", i->following);
2371 if (streq_ptr(i->load_state, "error")) {
2372 on = ansi_highlight_red(true);
2373 off = ansi_highlight_red(false);
2377 path = i->source_path ? i->source_path : i->fragment_path;
2380 printf("\t Loaded: %s%s%s (Reason: %s)\n", on, strna(i->load_state), off, i->load_error);
2381 else if (path && i->unit_file_state)
2382 printf("\t Loaded: %s%s%s (%s; %s)\n", on, strna(i->load_state), off, path, i->unit_file_state);
2384 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, path);
2386 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
2388 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
2390 if (streq_ptr(i->active_state, "failed")) {
2391 on = ansi_highlight_red(true);
2392 off = ansi_highlight_red(false);
2393 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
2394 on = ansi_highlight_green(true);
2395 off = ansi_highlight_green(false);
2400 printf("\t Active: %s%s (%s)%s",
2402 strna(i->active_state),
2406 printf("\t Active: %s%s%s",
2408 strna(i->active_state),
2411 if (!isempty(i->result) && !streq(i->result, "success"))
2412 printf(" (Result: %s)", i->result);
2414 timestamp = (streq_ptr(i->active_state, "active") ||
2415 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
2416 (streq_ptr(i->active_state, "inactive") ||
2417 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
2418 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
2419 i->active_exit_timestamp;
2421 s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp);
2422 s2 = format_timestamp(since2, sizeof(since2), timestamp);
2425 printf(" since %s; %s\n", s2, s1);
2427 printf(" since %s\n", s2);
2431 if (!i->condition_result && i->condition_timestamp > 0) {
2432 s1 = format_timestamp_pretty(since1, sizeof(since1), i->condition_timestamp);
2433 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
2436 printf("\t start condition failed at %s; %s\n", s2, s1);
2438 printf("\t start condition failed at %s\n", s2);
2442 printf("\t Device: %s\n", i->sysfs_path);
2444 printf("\t Where: %s\n", i->where);
2446 printf("\t What: %s\n", i->what);
2448 if (!strv_isempty(i->documentation)) {
2452 STRV_FOREACH(t, i->documentation) {
2454 printf("\t Docs: %s\n", *t);
2457 printf("\t %s\n", *t);
2462 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
2464 LIST_FOREACH(exec, p, i->exec) {
2468 /* Only show exited processes here */
2472 t = strv_join(p->argv, " ");
2473 printf("\t Process: %u %s=%s ", p->pid, p->name, strna(t));
2476 good = is_clean_exit_lsb(p->code, p->status);
2478 on = ansi_highlight_red(true);
2479 off = ansi_highlight_red(false);
2483 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
2485 if (p->code == CLD_EXITED) {
2488 printf("status=%i", p->status);
2490 c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD);
2495 printf("signal=%s", signal_to_string(p->status));
2497 printf(")%s\n", off);
2499 if (i->main_pid == p->pid &&
2500 i->start_timestamp == p->start_timestamp &&
2501 i->exit_timestamp == p->start_timestamp)
2502 /* Let's not show this twice */
2505 if (p->pid == i->control_pid)
2509 if (i->main_pid > 0 || i->control_pid > 0) {
2512 if (i->main_pid > 0) {
2513 printf("Main PID: %u", (unsigned) i->main_pid);
2517 get_process_comm(i->main_pid, &t);
2522 } else if (i->exit_code > 0) {
2523 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
2525 if (i->exit_code == CLD_EXITED) {
2528 printf("status=%i", i->exit_status);
2530 c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD);
2535 printf("signal=%s", signal_to_string(i->exit_status));
2540 if (i->main_pid > 0 && i->control_pid > 0)
2543 if (i->control_pid > 0) {
2546 printf(" Control: %u", (unsigned) i->control_pid);
2548 get_process_comm(i->control_pid, &t);
2559 printf("\t Status: \"%s\"\n", i->status_text);
2561 if (i->default_control_group) {
2564 printf("\t CGroup: %s\n", i->default_control_group);
2566 if (arg_transport != TRANSPORT_SSH) {
2576 if (i->main_pid > 0)
2577 extra[k++] = i->main_pid;
2579 if (i->control_pid > 0)
2580 extra[k++] = i->control_pid;
2582 show_cgroup_and_extra_by_spec(i->default_control_group, "\t\t ", c, false, arg_all, extra, k);
2586 if (i->id && arg_transport != TRANSPORT_SSH) {
2588 arg_lines * OUTPUT_SHOW_ALL |
2589 arg_follow * OUTPUT_FOLLOW |
2590 !arg_quiet * OUTPUT_WARN_CUTOFF |
2591 on_tty() * OUTPUT_COLOR;
2594 show_journal_by_unit(i->id, arg_output, 0,
2595 i->inactive_exit_timestamp_monotonic,
2599 if (i->need_daemon_reload)
2600 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
2601 ansi_highlight_red(true),
2602 ansi_highlight_red(false),
2603 arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
2606 static void show_unit_help(UnitStatusInfo *i) {
2611 if (!i->documentation) {
2612 log_info("Documentation for %s not known.", i->id);
2616 STRV_FOREACH(p, i->documentation) {
2618 if (startswith(*p, "man:")) {
2621 char *page = NULL, *section = NULL;
2622 const char *args[4] = { "man", NULL, NULL, NULL };
2627 if ((*p)[k-1] == ')')
2628 e = strrchr(*p, '(');
2631 page = strndup((*p) + 4, e - *p - 4);
2637 section = strndup(e + 1, *p + k - e - 2);
2651 log_error("Failed to fork: %m");
2659 execvp(args[0], (char**) args);
2660 log_error("Failed to execute man: %m");
2661 _exit(EXIT_FAILURE);
2667 wait_for_terminate(pid, NULL);
2669 log_info("Can't show: %s", *p);
2673 static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
2679 switch (dbus_message_iter_get_arg_type(iter)) {
2681 case DBUS_TYPE_STRING: {
2684 dbus_message_iter_get_basic(iter, &s);
2687 if (streq(name, "Id"))
2689 else if (streq(name, "LoadState"))
2691 else if (streq(name, "ActiveState"))
2692 i->active_state = s;
2693 else if (streq(name, "SubState"))
2695 else if (streq(name, "Description"))
2697 else if (streq(name, "FragmentPath"))
2698 i->fragment_path = s;
2699 else if (streq(name, "SourcePath"))
2701 else if (streq(name, "DefaultControlGroup"))
2702 i->default_control_group = s;
2703 else if (streq(name, "StatusText"))
2705 else if (streq(name, "SysFSPath"))
2707 else if (streq(name, "Where"))
2709 else if (streq(name, "What"))
2711 else if (streq(name, "Following"))
2713 else if (streq(name, "UnitFileState"))
2714 i->unit_file_state = s;
2715 else if (streq(name, "Result"))
2722 case DBUS_TYPE_BOOLEAN: {
2725 dbus_message_iter_get_basic(iter, &b);
2727 if (streq(name, "Accept"))
2729 else if (streq(name, "NeedDaemonReload"))
2730 i->need_daemon_reload = b;
2731 else if (streq(name, "ConditionResult"))
2732 i->condition_result = b;
2737 case DBUS_TYPE_UINT32: {
2740 dbus_message_iter_get_basic(iter, &u);
2742 if (streq(name, "MainPID")) {
2744 i->main_pid = (pid_t) u;
2747 } else if (streq(name, "ControlPID"))
2748 i->control_pid = (pid_t) u;
2749 else if (streq(name, "ExecMainPID")) {
2751 i->main_pid = (pid_t) u;
2752 } else if (streq(name, "NAccepted"))
2754 else if (streq(name, "NConnections"))
2755 i->n_connections = u;
2760 case DBUS_TYPE_INT32: {
2763 dbus_message_iter_get_basic(iter, &j);
2765 if (streq(name, "ExecMainCode"))
2766 i->exit_code = (int) j;
2767 else if (streq(name, "ExecMainStatus"))
2768 i->exit_status = (int) j;
2773 case DBUS_TYPE_UINT64: {
2776 dbus_message_iter_get_basic(iter, &u);
2778 if (streq(name, "ExecMainStartTimestamp"))
2779 i->start_timestamp = (usec_t) u;
2780 else if (streq(name, "ExecMainExitTimestamp"))
2781 i->exit_timestamp = (usec_t) u;
2782 else if (streq(name, "ActiveEnterTimestamp"))
2783 i->active_enter_timestamp = (usec_t) u;
2784 else if (streq(name, "InactiveEnterTimestamp"))
2785 i->inactive_enter_timestamp = (usec_t) u;
2786 else if (streq(name, "InactiveExitTimestamp"))
2787 i->inactive_exit_timestamp = (usec_t) u;
2788 else if (streq(name, "InactiveExitTimestampMonotonic"))
2789 i->inactive_exit_timestamp_monotonic = (usec_t) u;
2790 else if (streq(name, "ActiveExitTimestamp"))
2791 i->active_exit_timestamp = (usec_t) u;
2792 else if (streq(name, "ConditionTimestamp"))
2793 i->condition_timestamp = (usec_t) u;
2798 case DBUS_TYPE_ARRAY: {
2800 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
2801 startswith(name, "Exec")) {
2802 DBusMessageIter sub;
2804 dbus_message_iter_recurse(iter, &sub);
2805 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2806 ExecStatusInfo *info;
2809 if (!(info = new0(ExecStatusInfo, 1)))
2812 if (!(info->name = strdup(name))) {
2817 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
2822 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
2824 dbus_message_iter_next(&sub);
2826 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING &&
2827 streq(name, "Documentation")) {
2829 DBusMessageIter sub;
2831 dbus_message_iter_recurse(iter, &sub);
2832 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING) {
2836 dbus_message_iter_get_basic(&sub, &s);
2838 l = strv_append(i->documentation, s);
2842 strv_free(i->documentation);
2843 i->documentation = l;
2845 dbus_message_iter_next(&sub);
2852 case DBUS_TYPE_STRUCT: {
2854 if (streq(name, "LoadError")) {
2855 DBusMessageIter sub;
2856 const char *n, *message;
2859 dbus_message_iter_recurse(iter, &sub);
2861 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &n, true);
2865 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &message, false);
2869 if (!isempty(message))
2870 i->load_error = message;
2880 static int print_property(const char *name, DBusMessageIter *iter) {
2884 /* This is a low-level property printer, see
2885 * print_status_info() for the nicer output */
2887 if (arg_property && !strv_find(arg_property, name))
2890 switch (dbus_message_iter_get_arg_type(iter)) {
2892 case DBUS_TYPE_STRUCT: {
2893 DBusMessageIter sub;
2894 dbus_message_iter_recurse(iter, &sub);
2896 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
2899 dbus_message_iter_get_basic(&sub, &u);
2902 printf("%s=%u\n", name, (unsigned) u);
2904 printf("%s=\n", name);
2907 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
2910 dbus_message_iter_get_basic(&sub, &s);
2912 if (arg_all || s[0])
2913 printf("%s=%s\n", name, s);
2916 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "LoadError")) {
2917 const char *a = NULL, *b = NULL;
2919 if (bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &a, true) >= 0)
2920 bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &b, false);
2922 if (arg_all || !isempty(a) || !isempty(b))
2923 printf("%s=%s \"%s\"\n", name, strempty(a), strempty(b));
2931 case DBUS_TYPE_ARRAY:
2933 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "EnvironmentFiles")) {
2934 DBusMessageIter sub, sub2;
2936 dbus_message_iter_recurse(iter, &sub);
2937 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2941 dbus_message_iter_recurse(&sub, &sub2);
2943 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) >= 0 &&
2944 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, false) >= 0)
2945 printf("EnvironmentFile=%s (ignore_errors=%s)\n", path, yes_no(ignore));
2947 dbus_message_iter_next(&sub);
2952 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2953 DBusMessageIter sub, sub2;
2955 dbus_message_iter_recurse(iter, &sub);
2956 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2957 const char *type, *path;
2959 dbus_message_iter_recurse(&sub, &sub2);
2961 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2962 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2963 printf("%s=%s\n", type, path);
2965 dbus_message_iter_next(&sub);
2970 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2971 DBusMessageIter sub, sub2;
2973 dbus_message_iter_recurse(iter, &sub);
2974 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2976 uint64_t value, next_elapse;
2978 dbus_message_iter_recurse(&sub, &sub2);
2980 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
2981 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
2982 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
2983 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
2985 printf("%s={ value=%s ; next_elapse=%s }\n",
2987 format_timespan(timespan1, sizeof(timespan1), value),
2988 format_timespan(timespan2, sizeof(timespan2), next_elapse));
2991 dbus_message_iter_next(&sub);
2996 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "ControlGroupAttributes")) {
2997 DBusMessageIter sub, sub2;
2999 dbus_message_iter_recurse(iter, &sub);
3000 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3001 const char *controller, *attr, *value;
3003 dbus_message_iter_recurse(&sub, &sub2);
3005 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &controller, true) >= 0 &&
3006 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &attr, true) >= 0 &&
3007 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &value, false) >= 0) {
3009 printf("ControlGroupAttribute={ controller=%s ; attribute=%s ; value=\"%s\" }\n",
3015 dbus_message_iter_next(&sub);
3020 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
3021 DBusMessageIter sub;
3023 dbus_message_iter_recurse(iter, &sub);
3024 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3025 ExecStatusInfo info;
3028 if (exec_status_info_deserialize(&sub, &info) >= 0) {
3029 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
3032 t = strv_join(info.argv, " ");
3034 printf("%s={ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
3038 yes_no(info.ignore),
3039 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
3040 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
3041 (unsigned) info. pid,
3042 sigchld_code_to_string(info.code),
3044 info.code == CLD_EXITED ? "" : "/",
3045 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
3051 strv_free(info.argv);
3053 dbus_message_iter_next(&sub);
3062 if (generic_print_property(name, iter, arg_all) > 0)
3066 printf("%s=[unprintable]\n", name);
3071 static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
3072 DBusMessage *m = NULL, *reply = NULL;
3073 const char *interface = "";
3076 DBusMessageIter iter, sub, sub2, sub3;
3077 UnitStatusInfo info;
3085 dbus_error_init(&error);
3087 if (!(m = dbus_message_new_method_call(
3088 "org.freedesktop.systemd1",
3090 "org.freedesktop.DBus.Properties",
3092 log_error("Could not allocate message.");
3097 if (!dbus_message_append_args(m,
3098 DBUS_TYPE_STRING, &interface,
3099 DBUS_TYPE_INVALID)) {
3100 log_error("Could not append arguments to message.");
3105 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3106 log_error("Failed to issue method call: %s", bus_error_message(&error));
3111 if (!dbus_message_iter_init(reply, &iter) ||
3112 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
3113 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
3114 log_error("Failed to parse reply.");
3119 dbus_message_iter_recurse(&iter, &sub);
3126 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
3129 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
3130 log_error("Failed to parse reply.");
3135 dbus_message_iter_recurse(&sub, &sub2);
3137 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
3138 log_error("Failed to parse reply.");
3143 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
3144 log_error("Failed to parse reply.");
3149 dbus_message_iter_recurse(&sub2, &sub3);
3151 if (show_properties)
3152 r = print_property(name, &sub3);
3154 r = status_property(name, &sub3, &info);
3157 log_error("Failed to parse reply.");
3162 dbus_message_iter_next(&sub);
3167 if (!show_properties) {
3168 if (streq(verb, "help"))
3169 show_unit_help(&info);
3171 print_status_info(&info);
3174 strv_free(info.documentation);
3176 if (!streq_ptr(info.active_state, "active") &&
3177 !streq_ptr(info.active_state, "reloading") &&
3178 streq(verb, "status"))
3179 /* According to LSB: "program not running" */
3182 while ((p = info.exec)) {
3183 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
3184 exec_status_info_free(p);
3189 dbus_message_unref(m);
3192 dbus_message_unref(reply);
3194 dbus_error_free(&error);
3199 static int show_one_by_pid(const char *verb, DBusConnection *bus, uint32_t pid, bool *new_line) {
3200 DBusMessage *m = NULL, *reply = NULL;
3201 const char *path = NULL;
3205 dbus_error_init(&error);
3207 m = dbus_message_new_method_call(
3208 "org.freedesktop.systemd1",
3209 "/org/freedesktop/systemd1",
3210 "org.freedesktop.systemd1.Manager",
3213 log_error("Could not allocate message.");
3218 if (!dbus_message_append_args(m,
3219 DBUS_TYPE_UINT32, &pid,
3220 DBUS_TYPE_INVALID)) {
3221 log_error("Could not append arguments to message.");
3226 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3228 log_error("Failed to issue method call: %s", bus_error_message(&error));
3233 if (!dbus_message_get_args(reply, &error,
3234 DBUS_TYPE_OBJECT_PATH, &path,
3235 DBUS_TYPE_INVALID)) {
3236 log_error("Failed to parse reply: %s", bus_error_message(&error));
3241 r = show_one(verb, bus, path, false, new_line);
3245 dbus_message_unref(m);
3248 dbus_message_unref(reply);
3250 dbus_error_free(&error);
3255 static int show(DBusConnection *bus, char **args) {
3257 bool show_properties, new_line = false;
3263 show_properties = streq(args[0], "show");
3265 if (show_properties)
3266 pager_open_if_enabled();
3268 if (show_properties && strv_length(args) <= 1) {
3269 /* If not argument is specified inspect the manager
3272 return show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line);
3275 STRV_FOREACH(name, args+1) {
3278 if (safe_atou32(*name, &id) < 0) {
3280 /* Interpret as unit name */
3282 n = unit_name_mangle(*name);
3283 p = unit_dbus_path_from_name(n ? n : *name);
3288 r = show_one(args[0], bus, p, show_properties, &new_line);
3294 } else if (show_properties) {
3296 /* Interpret as job id */
3299 if (asprintf(&p, "/org/freedesktop/systemd1/job/%u", id) < 0)
3302 r = show_one(args[0], bus, p, show_properties, &new_line);
3310 /* Interpret as PID */
3312 r = show_one_by_pid(args[0], bus, id, &new_line);
3321 static int dump(DBusConnection *bus, char **args) {
3322 DBusMessage *m = NULL, *reply = NULL;
3327 dbus_error_init(&error);
3329 pager_open_if_enabled();
3331 if (!(m = dbus_message_new_method_call(
3332 "org.freedesktop.systemd1",
3333 "/org/freedesktop/systemd1",
3334 "org.freedesktop.systemd1.Manager",
3336 log_error("Could not allocate message.");
3340 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3341 log_error("Failed to issue method call: %s", bus_error_message(&error));
3346 if (!dbus_message_get_args(reply, &error,
3347 DBUS_TYPE_STRING, &text,
3348 DBUS_TYPE_INVALID)) {
3349 log_error("Failed to parse reply: %s", bus_error_message(&error));
3354 fputs(text, stdout);
3360 dbus_message_unref(m);
3363 dbus_message_unref(reply);
3365 dbus_error_free(&error);
3370 static int snapshot(DBusConnection *bus, char **args) {
3371 DBusMessage *m = NULL, *reply = NULL;
3374 const char *name = "", *path, *id;
3375 dbus_bool_t cleanup = FALSE;
3376 DBusMessageIter iter, sub;
3378 *interface = "org.freedesktop.systemd1.Unit",
3383 dbus_error_init(&error);
3385 m = dbus_message_new_method_call(
3386 "org.freedesktop.systemd1",
3387 "/org/freedesktop/systemd1",
3388 "org.freedesktop.systemd1.Manager",
3391 log_error("Could not allocate message.");
3395 if (strv_length(args) > 1)
3398 n = unit_name_mangle(name);
3399 b = dbus_message_append_args(m,
3400 DBUS_TYPE_STRING, n ? (const char**) &n : &name,
3401 DBUS_TYPE_BOOLEAN, &cleanup,
3405 log_error("Could not append arguments to message.");
3410 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3412 log_error("Failed to issue method call: %s", bus_error_message(&error));
3417 if (!dbus_message_get_args(reply, &error,
3418 DBUS_TYPE_OBJECT_PATH, &path,
3419 DBUS_TYPE_INVALID)) {
3420 log_error("Failed to parse reply: %s", bus_error_message(&error));
3425 dbus_message_unref(m);
3426 m = dbus_message_new_method_call(
3427 "org.freedesktop.systemd1",
3429 "org.freedesktop.DBus.Properties",
3432 log_error("Could not allocate message.");
3436 if (!dbus_message_append_args(m,
3437 DBUS_TYPE_STRING, &interface,
3438 DBUS_TYPE_STRING, &property,
3439 DBUS_TYPE_INVALID)) {
3440 log_error("Could not append arguments to message.");
3445 dbus_message_unref(reply);
3446 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3448 log_error("Failed to issue method call: %s", bus_error_message(&error));
3453 if (!dbus_message_iter_init(reply, &iter) ||
3454 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3455 log_error("Failed to parse reply.");
3460 dbus_message_iter_recurse(&iter, &sub);
3462 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
3463 log_error("Failed to parse reply.");
3468 dbus_message_iter_get_basic(&sub, &id);
3476 dbus_message_unref(m);
3479 dbus_message_unref(reply);
3481 dbus_error_free(&error);
3486 static int delete_snapshot(DBusConnection *bus, char **args) {
3487 DBusMessage *m = NULL, *reply = NULL;
3495 dbus_error_init(&error);
3497 STRV_FOREACH(name, args+1) {
3498 const char *path = NULL;
3502 m = dbus_message_new_method_call(
3503 "org.freedesktop.systemd1",
3504 "/org/freedesktop/systemd1",
3505 "org.freedesktop.systemd1.Manager",
3508 log_error("Could not allocate message.");
3513 n = unit_name_mangle(*name);
3514 b = dbus_message_append_args(m,
3515 DBUS_TYPE_STRING, n ? &n : name,
3519 log_error("Could not append arguments to message.");
3524 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3526 log_error("Failed to issue method call: %s", bus_error_message(&error));
3531 if (!dbus_message_get_args(reply, &error,
3532 DBUS_TYPE_OBJECT_PATH, &path,
3533 DBUS_TYPE_INVALID)) {
3534 log_error("Failed to parse reply: %s", bus_error_message(&error));
3539 dbus_message_unref(m);
3540 m = dbus_message_new_method_call(
3541 "org.freedesktop.systemd1",
3543 "org.freedesktop.systemd1.Snapshot",
3546 log_error("Could not allocate message.");
3551 dbus_message_unref(reply);
3552 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3554 log_error("Failed to issue method call: %s", bus_error_message(&error));
3559 dbus_message_unref(m);
3560 dbus_message_unref(reply);
3568 dbus_message_unref(m);
3571 dbus_message_unref(reply);
3573 dbus_error_free(&error);
3578 static int daemon_reload(DBusConnection *bus, char **args) {
3579 DBusMessage *m = NULL, *reply = NULL;
3584 dbus_error_init(&error);
3586 if (arg_action == ACTION_RELOAD)
3588 else if (arg_action == ACTION_REEXEC)
3589 method = "Reexecute";
3591 assert(arg_action == ACTION_SYSTEMCTL);
3594 streq(args[0], "clear-jobs") ||
3595 streq(args[0], "cancel") ? "ClearJobs" :
3596 streq(args[0], "daemon-reexec") ? "Reexecute" :
3597 streq(args[0], "reset-failed") ? "ResetFailed" :
3598 streq(args[0], "halt") ? "Halt" :
3599 streq(args[0], "poweroff") ? "PowerOff" :
3600 streq(args[0], "reboot") ? "Reboot" :
3601 streq(args[0], "kexec") ? "KExec" :
3602 streq(args[0], "exit") ? "Exit" :
3603 /* "daemon-reload" */ "Reload";
3606 if (!(m = dbus_message_new_method_call(
3607 "org.freedesktop.systemd1",
3608 "/org/freedesktop/systemd1",
3609 "org.freedesktop.systemd1.Manager",
3611 log_error("Could not allocate message.");
3615 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3617 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
3618 /* There's always a fallback possible for
3619 * legacy actions. */
3624 if (streq(method, "Reexecute") && dbus_error_has_name(&error, DBUS_ERROR_NO_REPLY)) {
3625 /* On reexecution, we expect a disconnect, not
3631 log_error("Failed to issue method call: %s", bus_error_message(&error));
3640 dbus_message_unref(m);
3643 dbus_message_unref(reply);
3645 dbus_error_free(&error);
3650 static int reset_failed(DBusConnection *bus, char **args) {
3651 DBusMessage *m = NULL;
3657 dbus_error_init(&error);
3659 if (strv_length(args) <= 1)
3660 return daemon_reload(bus, args);
3662 STRV_FOREACH(name, args+1) {
3667 m = dbus_message_new_method_call(
3668 "org.freedesktop.systemd1",
3669 "/org/freedesktop/systemd1",
3670 "org.freedesktop.systemd1.Manager",
3673 log_error("Could not allocate message.");
3678 n = unit_name_mangle(*name);
3679 b = dbus_message_append_args(m,
3680 DBUS_TYPE_STRING, n ? &n : name,
3684 log_error("Could not append arguments to message.");
3689 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3691 log_error("Failed to issue method call: %s", bus_error_message(&error));
3696 dbus_message_unref(m);
3697 dbus_message_unref(reply);
3705 dbus_message_unref(m);
3707 dbus_error_free(&error);
3712 static int show_enviroment(DBusConnection *bus, char **args) {
3713 DBusMessage *m = NULL, *reply = NULL;
3715 DBusMessageIter iter, sub, sub2;
3718 *interface = "org.freedesktop.systemd1.Manager",
3719 *property = "Environment";
3721 dbus_error_init(&error);
3723 pager_open_if_enabled();
3725 if (!(m = dbus_message_new_method_call(
3726 "org.freedesktop.systemd1",
3727 "/org/freedesktop/systemd1",
3728 "org.freedesktop.DBus.Properties",
3730 log_error("Could not allocate message.");
3734 if (!dbus_message_append_args(m,
3735 DBUS_TYPE_STRING, &interface,
3736 DBUS_TYPE_STRING, &property,
3737 DBUS_TYPE_INVALID)) {
3738 log_error("Could not append arguments to message.");
3743 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3744 log_error("Failed to issue method call: %s", bus_error_message(&error));
3749 if (!dbus_message_iter_init(reply, &iter) ||
3750 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3751 log_error("Failed to parse reply.");
3756 dbus_message_iter_recurse(&iter, &sub);
3758 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3759 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3760 log_error("Failed to parse reply.");
3765 dbus_message_iter_recurse(&sub, &sub2);
3767 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3770 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3771 log_error("Failed to parse reply.");
3776 dbus_message_iter_get_basic(&sub2, &text);
3777 printf("%s\n", text);
3779 dbus_message_iter_next(&sub2);
3786 dbus_message_unref(m);
3789 dbus_message_unref(reply);
3791 dbus_error_free(&error);
3796 static int switch_root(DBusConnection *bus, char **args) {
3797 DBusMessage *m = NULL, *reply = NULL;
3799 const char *root, *init;
3803 dbus_error_init(&error);
3805 l = strv_length(args);
3806 if (l < 2 || l > 3) {
3807 log_error("Wrong number of arguments.");
3812 init = l >= 3 ? args[2] : "";
3814 m = dbus_message_new_method_call(
3815 "org.freedesktop.systemd1",
3816 "/org/freedesktop/systemd1",
3817 "org.freedesktop.systemd1.Manager",
3820 log_error("Could not allocate message.");
3824 if (!dbus_message_append_args(
3826 DBUS_TYPE_STRING, &root,
3827 DBUS_TYPE_STRING, &init,
3828 DBUS_TYPE_INVALID)) {
3829 log_error("Could not append arguments to message.");
3834 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3836 log_error("Failed to issue method call: %s", bus_error_message(&error));
3845 dbus_message_unref(m);
3848 dbus_message_unref(reply);
3850 dbus_error_free(&error);
3855 static int set_environment(DBusConnection *bus, char **args) {
3856 DBusMessage *m = NULL, *reply = NULL;
3860 DBusMessageIter iter, sub;
3863 dbus_error_init(&error);
3865 method = streq(args[0], "set-environment")
3867 : "UnsetEnvironment";
3869 if (!(m = dbus_message_new_method_call(
3870 "org.freedesktop.systemd1",
3871 "/org/freedesktop/systemd1",
3872 "org.freedesktop.systemd1.Manager",
3875 log_error("Could not allocate message.");
3879 dbus_message_iter_init_append(m, &iter);
3881 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
3882 log_error("Could not append arguments to message.");
3887 STRV_FOREACH(name, args+1)
3888 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, name)) {
3889 log_error("Could not append arguments to message.");
3894 if (!dbus_message_iter_close_container(&iter, &sub)) {
3895 log_error("Could not append arguments to message.");
3900 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3901 log_error("Failed to issue method call: %s", bus_error_message(&error));
3910 dbus_message_unref(m);
3913 dbus_message_unref(reply);
3915 dbus_error_free(&error);
3920 static int enable_sysv_units(char **args) {
3923 #if defined (HAVE_SYSV_COMPAT) && (defined(TARGET_FEDORA) || defined(TARGET_MANDRIVA) || defined(TARGET_SUSE) || defined(TARGET_ALTLINUX) || defined(TARGET_MAGEIA))
3924 const char *verb = args[0];
3925 unsigned f = 1, t = 1;
3928 if (arg_scope != UNIT_FILE_SYSTEM)
3931 if (!streq(verb, "enable") &&
3932 !streq(verb, "disable") &&
3933 !streq(verb, "is-enabled"))
3936 /* Processes all SysV units, and reshuffles the array so that
3937 * afterwards only the native units remain */
3940 r = lookup_paths_init(&paths, MANAGER_SYSTEM, false, NULL, NULL, NULL);
3945 for (f = 1; args[f]; f++) {
3948 bool found_native = false, found_sysv;
3950 const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL };
3951 char **k, *l, *q = NULL;
3958 if (!endswith(name, ".service"))
3961 if (path_is_absolute(name))
3964 STRV_FOREACH(k, paths.unit_path) {
3967 if (!isempty(arg_root))
3968 asprintf(&p, "%s/%s/%s", arg_root, *k, name);
3970 asprintf(&p, "%s/%s", *k, name);
3977 found_native = access(p, F_OK) >= 0;
3988 if (!isempty(arg_root))
3989 asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name);
3991 asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name);
3997 p[strlen(p) - sizeof(".service") + 1] = 0;
3998 found_sysv = access(p, F_OK) >= 0;
4005 /* Mark this entry, so that we don't try enabling it as native unit */
4006 args[f] = (char*) "";
4008 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name);
4010 if (!isempty(arg_root))
4011 argv[c++] = q = strappend("--root=", arg_root);
4013 argv[c++] = path_get_file_name(p);
4015 streq(verb, "enable") ? "on" :
4016 streq(verb, "disable") ? "off" : "--level=5";
4019 l = strv_join((char**)argv, " ");
4027 log_info("Executing %s", l);
4032 log_error("Failed to fork: %m");
4037 } else if (pid == 0) {
4040 execv(argv[0], (char**) argv);
4041 _exit(EXIT_FAILURE);
4047 j = wait_for_terminate(pid, &status);
4049 log_error("Failed to wait for child: %s", strerror(-r));
4054 if (status.si_code == CLD_EXITED) {
4055 if (streq(verb, "is-enabled")) {
4056 if (status.si_status == 0) {
4065 } else if (status.si_status != 0) {
4076 lookup_paths_free(&paths);
4078 /* Drop all SysV units */
4079 for (f = 1, t = 1; args[f]; f++) {
4081 if (isempty(args[f]))
4084 args[t++] = args[f];
4093 static int enable_unit(DBusConnection *bus, char **args) {
4094 const char *verb = args[0];
4095 UnitFileChange *changes = NULL;
4096 unsigned n_changes = 0, i;
4097 int carries_install_info = -1;
4098 DBusMessage *m = NULL, *reply = NULL;
4102 r = enable_sysv_units(args);
4109 dbus_error_init(&error);
4111 if (!bus || avoid_bus()) {
4112 if (streq(verb, "enable")) {
4113 r = unit_file_enable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4114 carries_install_info = r;
4115 } else if (streq(verb, "disable"))
4116 r = unit_file_disable(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
4117 else if (streq(verb, "reenable")) {
4118 r = unit_file_reenable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4119 carries_install_info = r;
4120 } else if (streq(verb, "link"))
4121 r = unit_file_link(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4122 else if (streq(verb, "preset")) {
4123 r = unit_file_preset(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4124 carries_install_info = r;
4125 } else if (streq(verb, "mask"))
4126 r = unit_file_mask(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4127 else if (streq(verb, "unmask"))
4128 r = unit_file_unmask(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
4130 assert_not_reached("Unknown verb");
4133 log_error("Operation failed: %s", strerror(-r));
4138 for (i = 0; i < n_changes; i++) {
4139 if (changes[i].type == UNIT_FILE_SYMLINK)
4140 log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path);
4142 log_info("rm '%s'", changes[i].path);
4148 bool send_force = true, expect_carries_install_info = false;
4150 DBusMessageIter iter, sub, sub2;
4152 if (streq(verb, "enable")) {
4153 method = "EnableUnitFiles";
4154 expect_carries_install_info = true;
4155 } else if (streq(verb, "disable")) {
4156 method = "DisableUnitFiles";
4158 } else if (streq(verb, "reenable")) {
4159 method = "ReenableUnitFiles";
4160 expect_carries_install_info = true;
4161 } else if (streq(verb, "link"))
4162 method = "LinkUnitFiles";
4163 else if (streq(verb, "preset")) {
4164 method = "PresetUnitFiles";
4165 expect_carries_install_info = true;
4166 } else if (streq(verb, "mask"))
4167 method = "MaskUnitFiles";
4168 else if (streq(verb, "unmask")) {
4169 method = "UnmaskUnitFiles";
4172 assert_not_reached("Unknown verb");
4174 m = dbus_message_new_method_call(
4175 "org.freedesktop.systemd1",
4176 "/org/freedesktop/systemd1",
4177 "org.freedesktop.systemd1.Manager",
4184 dbus_message_iter_init_append(m, &iter);
4186 r = bus_append_strv_iter(&iter, args+1);
4188 log_error("Failed to append unit files.");
4193 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &a)) {
4194 log_error("Failed to append runtime boolean.");
4202 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b)) {
4203 log_error("Failed to append force boolean.");
4209 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
4211 log_error("Failed to issue method call: %s", bus_error_message(&error));
4216 if (!dbus_message_iter_init(reply, &iter)) {
4217 log_error("Failed to initialize iterator.");
4221 if (expect_carries_install_info) {
4222 r = bus_iter_get_basic_and_next(&iter, DBUS_TYPE_BOOLEAN, &b, true);
4224 log_error("Failed to parse reply.");
4228 carries_install_info = b;
4231 if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
4232 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
4233 log_error("Failed to parse reply.");
4238 dbus_message_iter_recurse(&iter, &sub);
4239 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
4240 const char *type, *path, *source;
4242 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
4243 log_error("Failed to parse reply.");
4248 dbus_message_iter_recurse(&sub, &sub2);
4250 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
4251 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0 ||
4252 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &source, false) < 0) {
4253 log_error("Failed to parse reply.");
4259 if (streq(type, "symlink"))
4260 log_info("ln -s '%s' '%s'", source, path);
4262 log_info("rm '%s'", path);
4265 dbus_message_iter_next(&sub);
4268 /* Try to reload if enabeld */
4270 r = daemon_reload(bus, args);
4273 if (carries_install_info == 0)
4274 log_warning("The unit files have no [Install] section. They are not meant to be enabled using systemctl.");
4278 dbus_message_unref(m);
4281 dbus_message_unref(reply);
4283 unit_file_changes_free(changes, n_changes);
4285 dbus_error_free(&error);
4289 static int unit_is_enabled(DBusConnection *bus, char **args) {
4292 DBusMessage *m = NULL, *reply = NULL;
4296 dbus_error_init(&error);
4298 r = enable_sysv_units(args);
4304 if (!bus || avoid_bus()) {
4306 STRV_FOREACH(name, args+1) {
4307 UnitFileState state;
4309 state = unit_file_get_state(arg_scope, arg_root, *name);
4315 if (state == UNIT_FILE_ENABLED ||
4316 state == UNIT_FILE_ENABLED_RUNTIME ||
4317 state == UNIT_FILE_STATIC)
4321 puts(unit_file_state_to_string(state));
4325 STRV_FOREACH(name, args+1) {
4328 m = dbus_message_new_method_call(
4329 "org.freedesktop.systemd1",
4330 "/org/freedesktop/systemd1",
4331 "org.freedesktop.systemd1.Manager",
4332 "GetUnitFileState");
4338 if (!dbus_message_append_args(m,
4339 DBUS_TYPE_STRING, name,
4340 DBUS_TYPE_INVALID)) {
4341 log_error("Could not append arguments to message.");
4346 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
4348 log_error("Failed to issue method call: %s", bus_error_message(&error));
4353 if (!dbus_message_get_args(reply, &error,
4354 DBUS_TYPE_STRING, &s,
4355 DBUS_TYPE_INVALID)) {
4356 log_error("Failed to parse reply: %s", bus_error_message(&error));
4361 dbus_message_unref(m);
4362 dbus_message_unref(reply);
4365 if (streq(s, "enabled") ||
4366 streq(s, "enabled-runtime") ||
4375 r = enabled ? 0 : 1;
4379 dbus_message_unref(m);
4382 dbus_message_unref(reply);
4384 dbus_error_free(&error);
4388 static int systemctl_help(void) {
4390 pager_open_if_enabled();
4392 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
4393 "Query or send control commands to the systemd manager.\n\n"
4394 " -h --help Show this help\n"
4395 " --version Show package version\n"
4396 " -t --type=TYPE List only units of a particular type\n"
4397 " -p --property=NAME Show only properties by this name\n"
4398 " -a --all Show all units/properties, including dead/empty ones\n"
4399 " --failed Show only failed units\n"
4400 " --full Don't ellipsize unit names on output\n"
4401 " --fail When queueing a new job, fail if conflicting jobs are\n"
4403 " --ignore-dependencies\n"
4404 " When queueing a new job, ignore all its dependencies\n"
4405 " --kill-who=WHO Who to send signal to\n"
4406 " -s --signal=SIGNAL Which signal to send\n"
4407 " -H --host=[USER@]HOST\n"
4408 " Show information for remote host\n"
4409 " -P --privileged Acquire privileges before execution\n"
4410 " -q --quiet Suppress output\n"
4411 " --no-block Do not wait until operation finished\n"
4412 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4413 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
4415 " --no-legend Do not print a legend (column headers and hints)\n"
4416 " --no-pager Do not pipe output into a pager\n"
4417 " --no-ask-password\n"
4418 " Do not ask for system passwords\n"
4419 " --order When generating graph for dot, show only order\n"
4420 " --require When generating graph for dot, show only requirement\n"
4421 " --system Connect to system manager\n"
4422 " --user Connect to user service manager\n"
4423 " --global Enable/disable unit files globally\n"
4424 " -f --force When enabling unit files, override existing symlinks\n"
4425 " When shutting down, execute action immediately\n"
4426 " --root=PATH Enable unit files in the specified root directory\n"
4427 " --runtime Enable unit files only temporarily until next reboot\n"
4428 " -n --lines=INTEGER Journal entries to show\n"
4429 " --follow Follow journal\n"
4430 " -o --output=STRING Change journal output mode (short, short-monotonic,\n"
4431 " verbose, export, json, cat)\n\n"
4433 " list-units List loaded units\n"
4434 " start [NAME...] Start (activate) one or more units\n"
4435 " stop [NAME...] Stop (deactivate) one or more units\n"
4436 " reload [NAME...] Reload one or more units\n"
4437 " restart [NAME...] Start or restart one or more units\n"
4438 " try-restart [NAME...] Restart one or more units if active\n"
4439 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
4440 " otherwise start or restart\n"
4441 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
4442 " otherwise restart if active\n"
4443 " isolate [NAME] Start one unit and stop all others\n"
4444 " kill [NAME...] Send signal to processes of a unit\n"
4445 " is-active [NAME...] Check whether units are active\n"
4446 " status [NAME...|PID...] Show runtime status of one or more units\n"
4447 " show [NAME...|JOB...] Show properties of one or more\n"
4448 " units/jobs or the manager\n"
4449 " help [NAME...|PID...] Show manual for one or more units\n"
4450 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4452 " load [NAME...] Load one or more units\n\n"
4453 "Unit File Commands:\n"
4454 " list-unit-files List installed unit files\n"
4455 " enable [NAME...] Enable one or more unit files\n"
4456 " disable [NAME...] Disable one or more unit files\n"
4457 " reenable [NAME...] Reenable one or more unit files\n"
4458 " preset [NAME...] Enable/disable one or more unit files\n"
4459 " based on preset configuration\n"
4460 " mask [NAME...] Mask one or more units\n"
4461 " unmask [NAME...] Unmask one or more units\n"
4462 " link [PATH...] Link one or more units files into\n"
4463 " the search path\n"
4464 " is-enabled [NAME...] Check whether unit files are enabled\n\n"
4466 " list-jobs List jobs\n"
4467 " cancel [JOB...] Cancel all, one, or more jobs\n\n"
4468 "Status Commands:\n"
4469 " dump Dump server status\n"
4470 " dot Dump dependency graph for dot(1)\n\n"
4471 "Snapshot Commands:\n"
4472 " snapshot [NAME] Create a snapshot\n"
4473 " delete [NAME...] Remove one or more snapshots\n\n"
4474 "Environment Commands:\n"
4475 " show-environment Dump environment\n"
4476 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
4477 " unset-environment [NAME...] Unset one or more environment variables\n\n"
4478 "Manager Lifecycle Commands:\n"
4479 " daemon-reload Reload systemd manager configuration\n"
4480 " daemon-reexec Reexecute systemd manager\n\n"
4481 "System Commands:\n"
4482 " default Enter system default mode\n"
4483 " rescue Enter system rescue mode\n"
4484 " emergency Enter system emergency mode\n"
4485 " halt Shut down and halt the system\n"
4486 " poweroff Shut down and power-off the system\n"
4487 " reboot Shut down and reboot the system\n"
4488 " kexec Shut down and reboot the system with kexec\n"
4489 " exit Request user instance exit\n"
4490 " switch-root [ROOT] [INIT] Change to a different root file system\n"
4491 " suspend Suspend the system\n"
4492 " hibernate Hibernate the system\n",
4493 program_invocation_short_name);
4498 static int halt_help(void) {
4500 printf("%s [OPTIONS...]\n\n"
4501 "%s the system.\n\n"
4502 " --help Show this help\n"
4503 " --halt Halt the machine\n"
4504 " -p --poweroff Switch off the machine\n"
4505 " --reboot Reboot the machine\n"
4506 " -f --force Force immediate halt/power-off/reboot\n"
4507 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
4508 " -d --no-wtmp Don't write wtmp record\n"
4509 " -n --no-sync Don't sync before halt/power-off/reboot\n"
4510 " --no-wall Don't send wall message before halt/power-off/reboot\n",
4511 program_invocation_short_name,
4512 arg_action == ACTION_REBOOT ? "Reboot" :
4513 arg_action == ACTION_POWEROFF ? "Power off" :
4519 static int shutdown_help(void) {
4521 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
4522 "Shut down the system.\n\n"
4523 " --help Show this help\n"
4524 " -H --halt Halt the machine\n"
4525 " -P --poweroff Power-off the machine\n"
4526 " -r --reboot Reboot the machine\n"
4527 " -h Equivalent to --poweroff, overridden by --halt\n"
4528 " -k Don't halt/power-off/reboot, just send warnings\n"
4529 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4530 " -c Cancel a pending shutdown\n",
4531 program_invocation_short_name);
4536 static int telinit_help(void) {
4538 printf("%s [OPTIONS...] {COMMAND}\n\n"
4539 "Send control commands to the init daemon.\n\n"
4540 " --help Show this help\n"
4541 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
4543 " 0 Power-off the machine\n"
4544 " 6 Reboot the machine\n"
4545 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4546 " 1, s, S Enter rescue mode\n"
4547 " q, Q Reload init daemon configuration\n"
4548 " u, U Reexecute init daemon\n",
4549 program_invocation_short_name);
4554 static int runlevel_help(void) {
4556 printf("%s [OPTIONS...]\n\n"
4557 "Prints the previous and current runlevel of the init system.\n\n"
4558 " --help Show this help\n",
4559 program_invocation_short_name);
4564 static int systemctl_parse_argv(int argc, char *argv[]) {
4568 ARG_IGNORE_DEPENDENCIES,
4583 ARG_NO_ASK_PASSWORD,
4590 static const struct option options[] = {
4591 { "help", no_argument, NULL, 'h' },
4592 { "version", no_argument, NULL, ARG_VERSION },
4593 { "type", required_argument, NULL, 't' },
4594 { "property", required_argument, NULL, 'p' },
4595 { "all", no_argument, NULL, 'a' },
4596 { "failed", no_argument, NULL, ARG_FAILED },
4597 { "full", no_argument, NULL, ARG_FULL },
4598 { "fail", no_argument, NULL, ARG_FAIL },
4599 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES },
4600 { "user", no_argument, NULL, ARG_USER },
4601 { "system", no_argument, NULL, ARG_SYSTEM },
4602 { "global", no_argument, NULL, ARG_GLOBAL },
4603 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4604 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
4605 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
4606 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4607 { "quiet", no_argument, NULL, 'q' },
4608 { "order", no_argument, NULL, ARG_ORDER },
4609 { "require", no_argument, NULL, ARG_REQUIRE },
4610 { "root", required_argument, NULL, ARG_ROOT },
4611 { "force", no_argument, NULL, ARG_FORCE },
4612 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
4613 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4614 { "signal", required_argument, NULL, 's' },
4615 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
4616 { "host", required_argument, NULL, 'H' },
4617 { "privileged",no_argument, NULL, 'P' },
4618 { "runtime", no_argument, NULL, ARG_RUNTIME },
4619 { "lines", required_argument, NULL, 'n' },
4620 { "follow", no_argument, NULL, ARG_FOLLOW },
4621 { "output", required_argument, NULL, 'o' },
4622 { NULL, 0, NULL, 0 }
4630 while ((c = getopt_long(argc, argv, "ht:p:aqfs:H:Pn:o:", options, NULL)) >= 0) {
4639 puts(PACKAGE_STRING);
4641 puts(SYSTEMD_FEATURES);
4645 if (unit_type_from_string(optarg) >= 0) {
4649 if (unit_load_state_from_string(optarg) >= 0) {
4650 arg_load_state = optarg;
4653 log_error("Unkown unit type or load state '%s'.",
4659 if (!(l = strv_append(arg_property, optarg)))
4662 strv_free(arg_property);
4665 /* If the user asked for a particular
4666 * property, show it to him, even if it is
4677 arg_job_mode = "fail";
4680 case ARG_IGNORE_DEPENDENCIES:
4681 arg_job_mode = "ignore-dependencies";
4685 arg_scope = UNIT_FILE_USER;
4689 arg_scope = UNIT_FILE_SYSTEM;
4693 arg_scope = UNIT_FILE_GLOBAL;
4697 arg_no_block = true;
4701 arg_no_legend = true;
4705 arg_no_pager = true;
4713 arg_dot = DOT_ORDER;
4717 arg_dot = DOT_REQUIRE;
4745 /* -f is short for both --follow and --force! */
4751 arg_no_reload = true;
4755 arg_kill_who = optarg;
4759 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
4760 log_error("Failed to parse signal string %s.", optarg);
4765 case ARG_NO_ASK_PASSWORD:
4766 arg_ask_password = false;
4770 arg_transport = TRANSPORT_POLKIT;
4774 arg_transport = TRANSPORT_SSH;
4783 if (safe_atou(optarg, &arg_lines) < 0) {
4784 log_error("Failed to parse lines '%s'", optarg);
4790 arg_output = output_mode_from_string(optarg);
4791 if (arg_output < 0) {
4792 log_error("Unknown output '%s'.", optarg);
4801 log_error("Unknown option code '%c'.", c);
4806 if (arg_transport != TRANSPORT_NORMAL && arg_scope != UNIT_FILE_SYSTEM) {
4807 log_error("Cannot access user instance remotely.");
4814 static int halt_parse_argv(int argc, char *argv[]) {
4823 static const struct option options[] = {
4824 { "help", no_argument, NULL, ARG_HELP },
4825 { "halt", no_argument, NULL, ARG_HALT },
4826 { "poweroff", no_argument, NULL, 'p' },
4827 { "reboot", no_argument, NULL, ARG_REBOOT },
4828 { "force", no_argument, NULL, 'f' },
4829 { "wtmp-only", no_argument, NULL, 'w' },
4830 { "no-wtmp", no_argument, NULL, 'd' },
4831 { "no-sync", no_argument, NULL, 'n' },
4832 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4833 { NULL, 0, NULL, 0 }
4841 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4842 if (runlevel == '0' || runlevel == '6')
4845 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4853 arg_action = ACTION_HALT;
4857 if (arg_action != ACTION_REBOOT)
4858 arg_action = ACTION_POWEROFF;
4862 arg_action = ACTION_REBOOT;
4887 /* Compatibility nops */
4894 log_error("Unknown option code '%c'.", c);
4899 if (optind < argc) {
4900 log_error("Too many arguments.");
4907 static int parse_time_spec(const char *t, usec_t *_u) {
4911 if (streq(t, "now"))
4913 else if (!strchr(t, ':')) {
4916 if (safe_atou64(t, &u) < 0)
4919 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4928 hour = strtol(t, &e, 10);
4929 if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
4932 minute = strtol(e+1, &e, 10);
4933 if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
4936 n = now(CLOCK_REALTIME);
4937 s = (time_t) (n / USEC_PER_SEC);
4940 assert_se(localtime_r(&s, &tm));
4942 tm.tm_hour = (int) hour;
4943 tm.tm_min = (int) minute;
4946 assert_se(s = mktime(&tm));
4948 *_u = (usec_t) s * USEC_PER_SEC;
4951 *_u += USEC_PER_DAY;
4957 static int shutdown_parse_argv(int argc, char *argv[]) {
4964 static const struct option options[] = {
4965 { "help", no_argument, NULL, ARG_HELP },
4966 { "halt", no_argument, NULL, 'H' },
4967 { "poweroff", no_argument, NULL, 'P' },
4968 { "reboot", no_argument, NULL, 'r' },
4969 { "kexec", no_argument, NULL, 'K' }, /* not documented extension */
4970 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4971 { NULL, 0, NULL, 0 }
4979 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
4987 arg_action = ACTION_HALT;
4991 arg_action = ACTION_POWEROFF;
4996 arg_action = ACTION_KEXEC;
4998 arg_action = ACTION_REBOOT;
5002 arg_action = ACTION_KEXEC;
5006 if (arg_action != ACTION_HALT)
5007 arg_action = ACTION_POWEROFF;
5020 /* Compatibility nops */
5024 arg_action = ACTION_CANCEL_SHUTDOWN;
5031 log_error("Unknown option code '%c'.", c);
5036 if (argc > optind) {
5037 r = parse_time_spec(argv[optind], &arg_when);
5039 log_error("Failed to parse time specification: %s", argv[optind]);
5043 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
5045 /* We skip the time argument */
5046 if (argc > optind + 1)
5047 arg_wall = argv + optind + 1;
5054 static int telinit_parse_argv(int argc, char *argv[]) {
5061 static const struct option options[] = {
5062 { "help", no_argument, NULL, ARG_HELP },
5063 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5064 { NULL, 0, NULL, 0 }
5067 static const struct {
5071 { '0', ACTION_POWEROFF },
5072 { '6', ACTION_REBOOT },
5073 { '1', ACTION_RESCUE },
5074 { '2', ACTION_RUNLEVEL2 },
5075 { '3', ACTION_RUNLEVEL3 },
5076 { '4', ACTION_RUNLEVEL4 },
5077 { '5', ACTION_RUNLEVEL5 },
5078 { 's', ACTION_RESCUE },
5079 { 'S', ACTION_RESCUE },
5080 { 'q', ACTION_RELOAD },
5081 { 'Q', ACTION_RELOAD },
5082 { 'u', ACTION_REEXEC },
5083 { 'U', ACTION_REEXEC }
5092 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5107 log_error("Unknown option code '%c'.", c);
5112 if (optind >= argc) {
5117 if (optind + 1 < argc) {
5118 log_error("Too many arguments.");
5122 if (strlen(argv[optind]) != 1) {
5123 log_error("Expected single character argument.");
5127 for (i = 0; i < ELEMENTSOF(table); i++)
5128 if (table[i].from == argv[optind][0])
5131 if (i >= ELEMENTSOF(table)) {
5132 log_error("Unknown command '%s'.", argv[optind]);
5136 arg_action = table[i].to;
5143 static int runlevel_parse_argv(int argc, char *argv[]) {
5149 static const struct option options[] = {
5150 { "help", no_argument, NULL, ARG_HELP },
5151 { NULL, 0, NULL, 0 }
5159 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5170 log_error("Unknown option code '%c'.", c);
5175 if (optind < argc) {
5176 log_error("Too many arguments.");
5183 static int parse_argv(int argc, char *argv[]) {
5187 if (program_invocation_short_name) {
5189 if (strstr(program_invocation_short_name, "halt")) {
5190 arg_action = ACTION_HALT;
5191 return halt_parse_argv(argc, argv);
5192 } else if (strstr(program_invocation_short_name, "poweroff")) {
5193 arg_action = ACTION_POWEROFF;
5194 return halt_parse_argv(argc, argv);
5195 } else if (strstr(program_invocation_short_name, "reboot")) {
5197 arg_action = ACTION_KEXEC;
5199 arg_action = ACTION_REBOOT;
5200 return halt_parse_argv(argc, argv);
5201 } else if (strstr(program_invocation_short_name, "shutdown")) {
5202 arg_action = ACTION_POWEROFF;
5203 return shutdown_parse_argv(argc, argv);
5204 } else if (strstr(program_invocation_short_name, "init")) {
5206 if (sd_booted() > 0) {
5207 arg_action = ACTION_INVALID;
5208 return telinit_parse_argv(argc, argv);
5210 /* Hmm, so some other init system is
5211 * running, we need to forward this
5212 * request to it. For now we simply
5213 * guess that it is Upstart. */
5215 execv("/lib/upstart/telinit", argv);
5217 log_error("Couldn't find an alternative telinit implementation to spawn.");
5221 } else if (strstr(program_invocation_short_name, "runlevel")) {
5222 arg_action = ACTION_RUNLEVEL;
5223 return runlevel_parse_argv(argc, argv);
5227 arg_action = ACTION_SYSTEMCTL;
5228 return systemctl_parse_argv(argc, argv);
5231 static int action_to_runlevel(void) {
5233 static const char table[_ACTION_MAX] = {
5234 [ACTION_HALT] = '0',
5235 [ACTION_POWEROFF] = '0',
5236 [ACTION_REBOOT] = '6',
5237 [ACTION_RUNLEVEL2] = '2',
5238 [ACTION_RUNLEVEL3] = '3',
5239 [ACTION_RUNLEVEL4] = '4',
5240 [ACTION_RUNLEVEL5] = '5',
5241 [ACTION_RESCUE] = '1'
5244 assert(arg_action < _ACTION_MAX);
5246 return table[arg_action];
5249 static int talk_upstart(void) {
5250 DBusMessage *m = NULL, *reply = NULL;
5252 int previous, rl, r;
5254 env1_buf[] = "RUNLEVEL=X",
5255 env2_buf[] = "PREVLEVEL=X";
5256 char *env1 = env1_buf, *env2 = env2_buf;
5257 const char *emit = "runlevel";
5258 dbus_bool_t b_false = FALSE;
5259 DBusMessageIter iter, sub;
5260 DBusConnection *bus;
5262 dbus_error_init(&error);
5264 if (!(rl = action_to_runlevel()))
5267 if (utmp_get_runlevel(&previous, NULL) < 0)
5270 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
5271 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
5276 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
5281 if ((r = bus_check_peercred(bus)) < 0) {
5282 log_error("Failed to verify owner of bus.");
5286 if (!(m = dbus_message_new_method_call(
5287 "com.ubuntu.Upstart",
5288 "/com/ubuntu/Upstart",
5289 "com.ubuntu.Upstart0_6",
5292 log_error("Could not allocate message.");
5297 dbus_message_iter_init_append(m, &iter);
5299 env1_buf[sizeof(env1_buf)-2] = rl;
5300 env2_buf[sizeof(env2_buf)-2] = previous;
5302 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
5303 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
5304 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
5305 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
5306 !dbus_message_iter_close_container(&iter, &sub) ||
5307 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
5308 log_error("Could not append arguments to message.");
5313 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
5315 if (error_is_no_service(&error)) {
5320 log_error("Failed to issue method call: %s", bus_error_message(&error));
5329 dbus_message_unref(m);
5332 dbus_message_unref(reply);
5335 dbus_connection_flush(bus);
5336 dbus_connection_close(bus);
5337 dbus_connection_unref(bus);
5340 dbus_error_free(&error);
5345 static int talk_initctl(void) {
5346 struct init_request request;
5350 if (!(rl = action_to_runlevel()))
5354 request.magic = INIT_MAGIC;
5355 request.sleeptime = 0;
5356 request.cmd = INIT_CMD_RUNLVL;
5357 request.runlevel = rl;
5359 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
5361 if (errno == ENOENT)
5364 log_error("Failed to open "INIT_FIFO": %m");
5369 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
5370 close_nointr_nofail(fd);
5373 log_error("Failed to write to "INIT_FIFO": %m");
5374 return errno ? -errno : -EIO;
5380 static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
5382 static const struct {
5390 int (* const dispatch)(DBusConnection *bus, char **args);
5392 { "list-units", LESS, 1, list_units },
5393 { "list-unit-files", EQUAL, 1, list_unit_files },
5394 { "list-jobs", EQUAL, 1, list_jobs },
5395 { "clear-jobs", EQUAL, 1, daemon_reload },
5396 { "load", MORE, 2, load_unit },
5397 { "cancel", MORE, 2, cancel_job },
5398 { "start", MORE, 2, start_unit },
5399 { "stop", MORE, 2, start_unit },
5400 { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5401 { "reload", MORE, 2, start_unit },
5402 { "restart", MORE, 2, start_unit },
5403 { "try-restart", MORE, 2, start_unit },
5404 { "reload-or-restart", MORE, 2, start_unit },
5405 { "reload-or-try-restart", MORE, 2, start_unit },
5406 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
5407 { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5408 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
5409 { "isolate", EQUAL, 2, start_unit },
5410 { "kill", MORE, 2, kill_unit },
5411 { "is-active", MORE, 2, check_unit },
5412 { "check", MORE, 2, check_unit },
5413 { "show", MORE, 1, show },
5414 { "status", MORE, 2, show },
5415 { "help", MORE, 2, show },
5416 { "dump", EQUAL, 1, dump },
5417 { "dot", EQUAL, 1, dot },
5418 { "snapshot", LESS, 2, snapshot },
5419 { "delete", MORE, 2, delete_snapshot },
5420 { "daemon-reload", EQUAL, 1, daemon_reload },
5421 { "daemon-reexec", EQUAL, 1, daemon_reload },
5422 { "show-environment", EQUAL, 1, show_enviroment },
5423 { "set-environment", MORE, 2, set_environment },
5424 { "unset-environment", MORE, 2, set_environment },
5425 { "halt", EQUAL, 1, start_special },
5426 { "poweroff", EQUAL, 1, start_special },
5427 { "reboot", EQUAL, 1, start_special },
5428 { "kexec", EQUAL, 1, start_special },
5429 { "suspend", EQUAL, 1, start_special },
5430 { "hibernate", EQUAL, 1, start_special },
5431 { "default", EQUAL, 1, start_special },
5432 { "rescue", EQUAL, 1, start_special },
5433 { "emergency", EQUAL, 1, start_special },
5434 { "exit", EQUAL, 1, start_special },
5435 { "reset-failed", MORE, 1, reset_failed },
5436 { "enable", MORE, 2, enable_unit },
5437 { "disable", MORE, 2, enable_unit },
5438 { "is-enabled", MORE, 2, unit_is_enabled },
5439 { "reenable", MORE, 2, enable_unit },
5440 { "preset", MORE, 2, enable_unit },
5441 { "mask", MORE, 2, enable_unit },
5442 { "unmask", MORE, 2, enable_unit },
5443 { "link", MORE, 2, enable_unit },
5444 { "switch-root", MORE, 2, switch_root },
5454 left = argc - optind;
5457 /* Special rule: no arguments means "list-units" */
5460 if (streq(argv[optind], "help") && !argv[optind+1]) {
5461 log_error("This command expects one or more "
5462 "unit names. Did you mean --help?");
5466 for (i = 0; i < ELEMENTSOF(verbs); i++)
5467 if (streq(argv[optind], verbs[i].verb))
5470 if (i >= ELEMENTSOF(verbs)) {
5471 log_error("Unknown operation '%s'.", argv[optind]);
5476 switch (verbs[i].argc_cmp) {
5479 if (left != verbs[i].argc) {
5480 log_error("Invalid number of arguments.");
5487 if (left < verbs[i].argc) {
5488 log_error("Too few arguments.");
5495 if (left > verbs[i].argc) {
5496 log_error("Too many arguments.");
5503 assert_not_reached("Unknown comparison operator.");
5506 /* Require a bus connection for all operations but
5508 if (!streq(verbs[i].verb, "enable") &&
5509 !streq(verbs[i].verb, "disable") &&
5510 !streq(verbs[i].verb, "is-enabled") &&
5511 !streq(verbs[i].verb, "list-unit-files") &&
5512 !streq(verbs[i].verb, "reenable") &&
5513 !streq(verbs[i].verb, "preset") &&
5514 !streq(verbs[i].verb, "mask") &&
5515 !streq(verbs[i].verb, "unmask") &&
5516 !streq(verbs[i].verb, "link")) {
5518 if (running_in_chroot() > 0) {
5519 log_info("Running in chroot, ignoring request.");
5523 if (((!streq(verbs[i].verb, "reboot") &&
5524 !streq(verbs[i].verb, "halt") &&
5525 !streq(verbs[i].verb, "poweroff")) || arg_force <= 0) && !bus) {
5526 log_error("Failed to get D-Bus connection: %s",
5527 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5533 if (!bus && !avoid_bus()) {
5534 log_error("Failed to get D-Bus connection: %s",
5535 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5540 return verbs[i].dispatch(bus, argv + optind);
5543 static int send_shutdownd(usec_t t, char mode, bool dry_run, bool warn, const char *message) {
5545 struct msghdr msghdr;
5546 struct iovec iovec[2];
5547 union sockaddr_union sockaddr;
5548 struct sd_shutdown_command c;
5550 fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
5557 c.dry_run = dry_run;
5561 sockaddr.sa.sa_family = AF_UNIX;
5562 strncpy(sockaddr.un.sun_path, "/run/systemd/shutdownd", sizeof(sockaddr.un.sun_path));
5565 msghdr.msg_name = &sockaddr;
5566 msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + sizeof("/run/systemd/shutdownd") - 1;
5569 iovec[0].iov_base = (char*) &c;
5570 iovec[0].iov_len = offsetof(struct sd_shutdown_command, wall_message);
5572 if (isempty(message))
5573 msghdr.msg_iovlen = 1;
5575 iovec[1].iov_base = (char*) message;
5576 iovec[1].iov_len = strlen(message);
5577 msghdr.msg_iovlen = 2;
5579 msghdr.msg_iov = iovec;
5581 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
5582 close_nointr_nofail(fd);
5586 close_nointr_nofail(fd);
5590 static int reload_with_fallback(DBusConnection *bus) {
5593 /* First, try systemd via D-Bus. */
5594 if (daemon_reload(bus, NULL) >= 0)
5598 /* Nothing else worked, so let's try signals */
5599 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5601 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5602 log_error("kill() failed: %m");
5609 static int start_with_fallback(DBusConnection *bus) {
5612 /* First, try systemd via D-Bus. */
5613 if (start_unit(bus, NULL) >= 0)
5617 /* Hmm, talking to systemd via D-Bus didn't work. Then
5618 * let's try to talk to Upstart via D-Bus. */
5619 if (talk_upstart() > 0)
5622 /* Nothing else worked, so let's try
5624 if (talk_initctl() > 0)
5627 log_error("Failed to talk to init daemon.");
5631 warn_wall(arg_action);
5635 static _noreturn_ void halt_now(enum action a) {
5637 /* Make sure C-A-D is handled by the kernel from this
5639 reboot(RB_ENABLE_CAD);
5644 log_info("Halting.");
5645 reboot(RB_HALT_SYSTEM);
5648 case ACTION_POWEROFF:
5649 log_info("Powering off.");
5650 reboot(RB_POWER_OFF);
5654 log_info("Rebooting.");
5655 reboot(RB_AUTOBOOT);
5659 assert_not_reached("Unknown halt action.");
5662 assert_not_reached("Uh? This shouldn't happen.");
5665 static int halt_main(DBusConnection *bus) {
5668 if (geteuid() != 0) {
5669 /* Try logind if we are a normal user and no special
5670 * mode applies. Maybe PolicyKit allows us to shutdown
5673 if (arg_when <= 0 &&
5676 (arg_action == ACTION_POWEROFF ||
5677 arg_action == ACTION_REBOOT)) {
5678 r = reboot_with_logind(bus, arg_action);
5683 log_error("Must be root.");
5690 m = strv_join(arg_wall, " ");
5691 r = send_shutdownd(arg_when,
5692 arg_action == ACTION_HALT ? 'H' :
5693 arg_action == ACTION_POWEROFF ? 'P' :
5694 arg_action == ACTION_KEXEC ? 'K' :
5702 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
5704 char date[FORMAT_TIMESTAMP_MAX];
5706 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
5707 format_timestamp(date, sizeof(date), arg_when));
5712 if (!arg_dry && !arg_force)
5713 return start_with_fallback(bus);
5716 if (sd_booted() > 0)
5717 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
5719 r = utmp_put_shutdown();
5721 log_warning("Failed to write utmp record: %s", strerror(-r));
5731 halt_now(arg_action);
5732 /* We should never reach this. */
5736 static int runlevel_main(void) {
5737 int r, runlevel, previous;
5739 r = utmp_get_runlevel(&runlevel, &previous);
5746 previous <= 0 ? 'N' : previous,
5747 runlevel <= 0 ? 'N' : runlevel);
5752 int main(int argc, char*argv[]) {
5753 int r, retval = EXIT_FAILURE;
5754 DBusConnection *bus = NULL;
5757 dbus_error_init(&error);
5759 log_parse_environment();
5762 r = parse_argv(argc, argv);
5766 retval = EXIT_SUCCESS;
5770 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5771 * let's shortcut this */
5772 if (arg_action == ACTION_RUNLEVEL) {
5773 r = runlevel_main();
5774 retval = r < 0 ? EXIT_FAILURE : r;
5778 if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
5779 log_info("Running in chroot, ignoring request.");
5785 if (arg_transport == TRANSPORT_NORMAL)
5786 bus_connect(arg_scope == UNIT_FILE_SYSTEM ? DBUS_BUS_SYSTEM : DBUS_BUS_SESSION, &bus, &private_bus, &error);
5787 else if (arg_transport == TRANSPORT_POLKIT) {
5788 bus_connect_system_polkit(&bus, &error);
5789 private_bus = false;
5790 } else if (arg_transport == TRANSPORT_SSH) {
5791 bus_connect_system_ssh(NULL, arg_host, &bus, &error);
5792 private_bus = false;
5794 assert_not_reached("Uh, invalid transport...");
5797 switch (arg_action) {
5799 case ACTION_SYSTEMCTL:
5800 r = systemctl_main(bus, argc, argv, &error);
5804 case ACTION_POWEROFF:
5810 case ACTION_RUNLEVEL2:
5811 case ACTION_RUNLEVEL3:
5812 case ACTION_RUNLEVEL4:
5813 case ACTION_RUNLEVEL5:
5815 case ACTION_EMERGENCY:
5816 case ACTION_DEFAULT:
5817 r = start_with_fallback(bus);
5822 r = reload_with_fallback(bus);
5825 case ACTION_CANCEL_SHUTDOWN:
5826 r = send_shutdownd(0, 0, false, false, NULL);
5829 case ACTION_INVALID:
5830 case ACTION_RUNLEVEL:
5832 assert_not_reached("Unknown action");
5835 retval = r < 0 ? EXIT_FAILURE : r;
5839 dbus_connection_flush(bus);
5840 dbus_connection_close(bus);
5841 dbus_connection_unref(bus);
5844 dbus_error_free(&error);
5848 strv_free(arg_property);
5851 ask_password_agent_close();
5852 polkit_agent_close();