1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
22 #include <sys/reboot.h>
29 #include <sys/ioctl.h>
33 #include <sys/socket.h>
36 #include <sys/prctl.h>
37 #include <dbus/dbus.h>
39 #include <systemd/sd-daemon.h>
40 #include <systemd/sd-shutdown.h>
46 #include "utmp-wtmp.h"
49 #include "path-util.h"
51 #include "dbus-common.h"
52 #include "cgroup-show.h"
53 #include "cgroup-util.h"
55 #include "path-lookup.h"
56 #include "conf-parser.h"
57 #include "exit-status.h"
58 #include "bus-errors.h"
60 #include "unit-name.h"
62 #include "spawn-ask-password-agent.h"
63 #include "spawn-polkit-agent.h"
65 #include "logs-show.h"
66 #include "path-util.h"
67 #include "socket-util.h"
69 static const char *arg_type = NULL;
70 static const char *arg_load_state = NULL;
71 static char **arg_property = NULL;
72 static bool arg_all = false;
73 static const char *arg_job_mode = "replace";
74 static UnitFileScope arg_scope = UNIT_FILE_SYSTEM;
75 static bool arg_no_block = false;
76 static bool arg_no_legend = false;
77 static bool arg_no_pager = false;
78 static bool arg_no_wtmp = false;
79 static bool arg_no_wall = false;
80 static bool arg_no_reload = false;
81 static bool arg_dry = false;
82 static bool arg_quiet = false;
83 static bool arg_full = false;
84 static int arg_force = 0;
85 static bool arg_ask_password = true;
86 static bool arg_failed = false;
87 static bool arg_runtime = false;
88 static char **arg_wall = NULL;
89 static const char *arg_kill_who = NULL;
90 static int arg_signal = SIGTERM;
91 static const char *arg_root = NULL;
92 static usec_t arg_when = 0;
114 ACTION_CANCEL_SHUTDOWN,
116 } arg_action = ACTION_SYSTEMCTL;
122 static enum transport {
126 } arg_transport = TRANSPORT_NORMAL;
127 static const char *arg_host = NULL;
128 static unsigned arg_lines = 10;
129 static OutputMode arg_output = OUTPUT_SHORT;
131 static bool private_bus = false;
133 static int daemon_reload(DBusConnection *bus, char **args);
134 static void halt_now(enum action a);
136 static void pager_open_if_enabled(void) {
144 static void ask_password_agent_open_if_enabled(void) {
146 /* Open the password agent as a child process if necessary */
148 if (!arg_ask_password)
151 if (arg_scope != UNIT_FILE_SYSTEM)
154 ask_password_agent_open();
158 static void polkit_agent_open_if_enabled(void) {
160 /* Open the polkit agent as a child process if necessary */
162 if (!arg_ask_password)
165 if (arg_scope != UNIT_FILE_SYSTEM)
172 static const char *ansi_highlight(bool b) {
177 return b ? ANSI_HIGHLIGHT_ON : ANSI_HIGHLIGHT_OFF;
180 static const char *ansi_highlight_red(bool b) {
185 return b ? ANSI_HIGHLIGHT_RED_ON : ANSI_HIGHLIGHT_OFF;
188 static const char *ansi_highlight_green(bool b) {
193 return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF;
196 static int translate_bus_error_to_exit_status(int r, const DBusError *error) {
199 if (!dbus_error_is_set(error))
202 if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) ||
203 dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
204 dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
205 dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
206 return EXIT_NOPERMISSION;
208 if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
209 return EXIT_NOTINSTALLED;
211 if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
212 dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED))
213 return EXIT_NOTIMPLEMENTED;
215 if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
216 return EXIT_NOTCONFIGURED;
224 static void warn_wall(enum action a) {
225 static const char *table[_ACTION_MAX] = {
226 [ACTION_HALT] = "The system is going down for system halt NOW!",
227 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
228 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
229 [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!",
230 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
231 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!",
232 [ACTION_CANCEL_SHUTDOWN] = "The system shutdown has been cancelled NOW!"
241 p = strv_join(arg_wall, " ");
243 log_error("Failed to join strings.");
259 utmp_wall(table[a], NULL);
262 static bool avoid_bus(void) {
264 if (running_in_chroot() > 0)
267 if (sd_booted() <= 0)
270 if (!isempty(arg_root))
273 if (arg_scope == UNIT_FILE_GLOBAL)
281 const char *description;
282 const char *load_state;
283 const char *active_state;
284 const char *sub_state;
285 const char *following;
286 const char *unit_path;
288 const char *job_type;
289 const char *job_path;
292 static int compare_unit_info(const void *a, const void *b) {
294 const struct unit_info *u = a, *v = b;
296 d1 = strrchr(u->id, '.');
297 d2 = strrchr(v->id, '.');
302 if ((r = strcasecmp(d1, d2)) != 0)
306 return strcasecmp(u->id, v->id);
309 static bool output_show_unit(const struct unit_info *u) {
313 return streq(u->active_state, "failed");
315 return (!arg_type || ((dot = strrchr(u->id, '.')) &&
316 streq(dot+1, arg_type))) &&
317 (!arg_load_state || streq(u->load_state, arg_load_state)) &&
318 (arg_all || !(streq(u->active_state, "inactive")
319 || u->following[0]) || u->job_id > 0);
322 static void output_units_list(const struct unit_info *unit_infos, unsigned c) {
323 unsigned id_len, max_id_len, active_len, sub_len, job_len, desc_len, n_shown = 0;
324 const struct unit_info *u;
327 max_id_len = sizeof("UNIT")-1;
328 active_len = sizeof("ACTIVE")-1;
329 sub_len = sizeof("SUB")-1;
330 job_len = sizeof("JOB")-1;
333 for (u = unit_infos; u < unit_infos + c; u++) {
334 if (!output_show_unit(u))
337 max_id_len = MAX(max_id_len, strlen(u->id));
338 active_len = MAX(active_len, strlen(u->active_state));
339 sub_len = MAX(sub_len, strlen(u->sub_state));
340 if (u->job_id != 0) {
341 job_len = MAX(job_len, strlen(u->job_type));
348 id_len = MIN(max_id_len, 25);
349 basic_len = 5 + id_len + 5 + active_len + sub_len;
351 basic_len += job_len + 1;
352 if (basic_len < (unsigned) columns()) {
353 unsigned extra_len, incr;
354 extra_len = columns() - basic_len;
355 /* Either UNIT already got 25, or is fully satisfied.
356 * Grant up to 25 to DESC now. */
357 incr = MIN(extra_len, 25);
360 /* split the remaining space between UNIT and DESC,
361 * but do not give UNIT more than it needs. */
363 incr = MIN(extra_len / 2, max_id_len - id_len);
365 desc_len += extra_len - incr;
371 for (u = unit_infos; u < unit_infos + c; u++) {
373 const char *on_loaded, *off_loaded;
374 const char *on_active, *off_active;
376 if (!output_show_unit(u))
379 if (!n_shown && !arg_no_legend) {
380 printf("%-*s %-6s %-*s %-*s ", id_len, "UNIT", "LOAD",
381 active_len, "ACTIVE", sub_len, "SUB");
383 printf("%-*s ", job_len, "JOB");
384 if (!arg_full && arg_no_pager)
385 printf("%.*s\n", desc_len, "DESCRIPTION");
387 printf("%s\n", "DESCRIPTION");
392 if (streq(u->load_state, "error")) {
393 on_loaded = ansi_highlight_red(true);
394 off_loaded = ansi_highlight_red(false);
396 on_loaded = off_loaded = "";
398 if (streq(u->active_state, "failed")) {
399 on_active = ansi_highlight_red(true);
400 off_active = ansi_highlight_red(false);
402 on_active = off_active = "";
404 e = arg_full ? NULL : ellipsize(u->id, id_len, 33);
406 printf("%-*s %s%-6s%s %s%-*s %-*s%s %-*s",
407 id_len, e ? e : u->id,
408 on_loaded, u->load_state, off_loaded,
409 on_active, active_len, u->active_state,
410 sub_len, u->sub_state, off_active,
411 job_count ? job_len + 1 : 0, u->job_id ? u->job_type : "");
412 if (!arg_full && arg_no_pager)
413 printf("%.*s\n", desc_len, u->description);
415 printf("%s\n", u->description);
420 if (!arg_no_legend) {
421 const char *on, *off;
424 printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
425 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
426 "SUB = The low-level unit activation state, values depend on unit type.\n");
428 printf("JOB = Pending job for the unit.\n");
430 on = ansi_highlight(true);
431 off = ansi_highlight(false);
433 on = ansi_highlight_red(true);
434 off = ansi_highlight_red(false);
438 printf("%s%u loaded units listed.%s\n"
439 "To show all installed unit files use 'systemctl list-unit-files'.\n",
442 printf("%s%u loaded units listed.%s Pass --all to see loaded but inactive units, too.\n"
443 "To show all installed unit files use 'systemctl list-unit-files'.\n",
448 static int list_units(DBusConnection *bus, char **args) {
449 DBusMessage *reply = NULL;
451 DBusMessageIter iter, sub, sub2;
452 unsigned c = 0, n_units = 0;
453 struct unit_info *unit_infos = NULL;
455 pager_open_if_enabled();
457 r = bus_method_call_with_reply (
459 "org.freedesktop.systemd1",
460 "/org/freedesktop/systemd1",
461 "org.freedesktop.systemd1.Manager",
469 if (!dbus_message_iter_init(reply, &iter) ||
470 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
471 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
472 log_error("Failed to parse reply.");
477 dbus_message_iter_recurse(&iter, &sub);
479 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
482 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
483 log_error("Failed to parse reply.");
491 n_units = MAX(2*c, 16);
492 w = realloc(unit_infos, sizeof(struct unit_info) * n_units);
495 log_error("Failed to allocate unit array.");
505 dbus_message_iter_recurse(&sub, &sub2);
507 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->id, true) < 0 ||
508 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->description, true) < 0 ||
509 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->load_state, true) < 0 ||
510 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->active_state, true) < 0 ||
511 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->sub_state, true) < 0 ||
512 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->following, true) < 0 ||
513 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->unit_path, true) < 0 ||
514 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &u->job_id, true) < 0 ||
515 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->job_type, true) < 0 ||
516 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->job_path, false) < 0) {
517 log_error("Failed to parse reply.");
522 dbus_message_iter_next(&sub);
527 qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info);
528 output_units_list(unit_infos, c);
533 dbus_message_unref(reply);
540 static int compare_unit_file_list(const void *a, const void *b) {
542 const UnitFileList *u = a, *v = b;
544 d1 = strrchr(u->path, '.');
545 d2 = strrchr(v->path, '.');
550 r = strcasecmp(d1, d2);
555 return strcasecmp(path_get_file_name(u->path), path_get_file_name(v->path));
558 static bool output_show_unit_file(const UnitFileList *u) {
561 return !arg_type || ((dot = strrchr(u->path, '.')) && streq(dot+1, arg_type));
564 static void output_unit_file_list(const UnitFileList *units, unsigned c) {
565 unsigned max_id_len, id_cols, state_cols, n_shown = 0;
566 const UnitFileList *u;
568 max_id_len = sizeof("UNIT FILE")-1;
569 state_cols = sizeof("STATE")-1;
570 for (u = units; u < units + c; u++) {
571 if (!output_show_unit_file(u))
574 max_id_len = MAX(max_id_len, strlen(path_get_file_name(u->path)));
575 state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state)));
580 id_cols = MIN(max_id_len, 25);
581 basic_cols = 1 + id_cols + state_cols;
582 if (basic_cols < (unsigned) columns())
583 id_cols += MIN(columns() - basic_cols, max_id_len - id_cols);
585 id_cols = max_id_len;
588 printf("%-*s %-*s\n", id_cols, "UNIT FILE", state_cols, "STATE");
590 for (u = units; u < units + c; u++) {
592 const char *on, *off;
595 if (!output_show_unit_file(u))
600 if (u->state == UNIT_FILE_MASKED ||
601 u->state == UNIT_FILE_MASKED_RUNTIME ||
602 u->state == UNIT_FILE_DISABLED ||
603 u->state == UNIT_FILE_INVALID) {
604 on = ansi_highlight_red(true);
605 off = ansi_highlight_red(false);
606 } else if (u->state == UNIT_FILE_ENABLED) {
607 on = ansi_highlight_green(true);
608 off = ansi_highlight_green(false);
612 id = path_get_file_name(u->path);
614 e = arg_full ? NULL : ellipsize(id, id_cols, 33);
616 printf("%-*s %s%-*s%s\n",
618 on, state_cols, unit_file_state_to_string(u->state), off);
624 printf("\n%u unit files listed.\n", n_shown);
627 static int list_unit_files(DBusConnection *bus, char **args) {
628 DBusMessage *reply = NULL;
630 DBusMessageIter iter, sub, sub2;
631 unsigned c = 0, n_units = 0;
632 UnitFileList *units = NULL;
634 pager_open_if_enabled();
641 h = hashmap_new(string_hash_func, string_compare_func);
645 r = unit_file_get_list(arg_scope, arg_root, h);
647 unit_file_list_free(h);
648 log_error("Failed to get unit file list: %s", strerror(-r));
652 n_units = hashmap_size(h);
653 units = new(UnitFileList, n_units);
655 unit_file_list_free(h);
659 HASHMAP_FOREACH(u, h, i) {
660 memcpy(units + c++, u, sizeof(UnitFileList));
666 r = bus_method_call_with_reply (
668 "org.freedesktop.systemd1",
669 "/org/freedesktop/systemd1",
670 "org.freedesktop.systemd1.Manager",
678 if (!dbus_message_iter_init(reply, &iter) ||
679 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
680 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
681 log_error("Failed to parse reply.");
686 dbus_message_iter_recurse(&iter, &sub);
688 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
692 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
693 log_error("Failed to parse reply.");
701 n_units = MAX(2*c, 16);
702 w = realloc(units, sizeof(struct UnitFileList) * n_units);
705 log_error("Failed to allocate unit array.");
715 dbus_message_iter_recurse(&sub, &sub2);
717 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->path, true) < 0 ||
718 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, false) < 0) {
719 log_error("Failed to parse reply.");
724 u->state = unit_file_state_from_string(state);
726 dbus_message_iter_next(&sub);
732 qsort(units, c, sizeof(UnitFileList), compare_unit_file_list);
733 output_unit_file_list(units, c);
740 dbus_message_unref(reply);
747 static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) {
748 static const char * const colors[] = {
749 "Requires", "[color=\"black\"]",
750 "RequiresOverridable", "[color=\"black\"]",
751 "Requisite", "[color=\"darkblue\"]",
752 "RequisiteOverridable", "[color=\"darkblue\"]",
753 "Wants", "[color=\"grey66\"]",
754 "Conflicts", "[color=\"red\"]",
755 "ConflictedBy", "[color=\"red\"]",
756 "After", "[color=\"green\"]"
759 const char *c = NULL;
766 for (i = 0; i < ELEMENTSOF(colors); i += 2)
767 if (streq(colors[i], prop)) {
775 if (arg_dot != DOT_ALL)
776 if ((arg_dot == DOT_ORDER) != streq(prop, "After"))
779 switch (dbus_message_iter_get_arg_type(iter)) {
781 case DBUS_TYPE_ARRAY:
783 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
786 dbus_message_iter_recurse(iter, &sub);
788 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
791 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
792 dbus_message_iter_get_basic(&sub, &s);
793 printf("\t\"%s\"->\"%s\" %s;\n", name, s, c);
795 dbus_message_iter_next(&sub);
805 static int dot_one(DBusConnection *bus, const char *name, const char *path) {
806 DBusMessage *reply = NULL;
807 const char *interface = "org.freedesktop.systemd1.Unit";
809 DBusMessageIter iter, sub, sub2, sub3;
813 r = bus_method_call_with_reply (
815 "org.freedesktop.systemd1",
817 "org.freedesktop.DBus.Properties",
821 DBUS_TYPE_STRING, &interface,
826 if (!dbus_message_iter_init(reply, &iter) ||
827 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
828 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
829 log_error("Failed to parse reply.");
834 dbus_message_iter_recurse(&iter, &sub);
836 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
839 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
840 log_error("Failed to parse reply.");
845 dbus_message_iter_recurse(&sub, &sub2);
847 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
848 log_error("Failed to parse reply.");
853 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
854 log_error("Failed to parse reply.");
859 dbus_message_iter_recurse(&sub2, &sub3);
861 if (dot_one_property(name, prop, &sub3)) {
862 log_error("Failed to parse reply.");
867 dbus_message_iter_next(&sub);
872 dbus_message_unref(reply);
877 static int dot(DBusConnection *bus, char **args) {
878 DBusMessage *reply = NULL;
880 DBusMessageIter iter, sub, sub2;
882 r = bus_method_call_with_reply (
884 "org.freedesktop.systemd1",
885 "/org/freedesktop/systemd1",
886 "org.freedesktop.systemd1.Manager",
894 if (!dbus_message_iter_init(reply, &iter) ||
895 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
896 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
897 log_error("Failed to parse reply.");
902 printf("digraph systemd {\n");
904 dbus_message_iter_recurse(&iter, &sub);
905 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
906 const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path;
908 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
909 log_error("Failed to parse reply.");
914 dbus_message_iter_recurse(&sub, &sub2);
916 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
917 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
918 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
919 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
920 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
921 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 ||
922 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) {
923 log_error("Failed to parse reply.");
928 if ((r = dot_one(bus, id, unit_path)) < 0)
931 /* printf("\t\"%s\";\n", id); */
932 dbus_message_iter_next(&sub);
937 log_info(" Color legend: black = Requires\n"
938 " dark blue = Requisite\n"
939 " dark grey = Wants\n"
944 log_notice("-- You probably want to process this output with graphviz' dot tool.\n"
945 "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n");
951 dbus_message_unref(reply);
956 static int list_jobs(DBusConnection *bus, char **args) {
957 DBusMessage *reply = NULL;
959 DBusMessageIter iter, sub, sub2;
962 pager_open_if_enabled();
964 r = bus_method_call_with_reply (
966 "org.freedesktop.systemd1",
967 "/org/freedesktop/systemd1",
968 "org.freedesktop.systemd1.Manager",
976 if (!dbus_message_iter_init(reply, &iter) ||
977 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
978 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
979 log_error("Failed to parse reply.");
984 dbus_message_iter_recurse(&iter, &sub);
987 printf("%4s %-25s %-15s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
989 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
990 const char *name, *type, *state, *job_path, *unit_path;
994 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
995 log_error("Failed to parse reply.");
1000 dbus_message_iter_recurse(&sub, &sub2);
1002 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
1003 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
1004 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
1005 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
1006 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
1007 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
1008 log_error("Failed to parse reply.");
1013 e = arg_full ? NULL : ellipsize(name, 25, 33);
1014 printf("%4u %-25s %-15s %-7s\n", id, e ? e : name, type, state);
1019 dbus_message_iter_next(&sub);
1023 printf("\n%u jobs listed.\n", k);
1029 dbus_message_unref(reply);
1034 static int load_unit(DBusConnection *bus, char **args) {
1040 STRV_FOREACH(name, args+1) {
1041 n = unit_name_mangle(*name);
1042 r = bus_method_call_with_reply (
1044 "org.freedesktop.systemd1",
1045 "/org/freedesktop/systemd1",
1046 "org.freedesktop.systemd1.Manager",
1050 DBUS_TYPE_STRING, n ? &n : name,
1061 static int cancel_job(DBusConnection *bus, char **args) {
1062 DBusMessage *reply = NULL;
1068 if (strv_length(args) <= 1)
1069 return daemon_reload(bus, args);
1071 STRV_FOREACH(name, args+1) {
1075 r = safe_atou(*name, &id);
1077 log_error("Failed to parse job id: %s", strerror(-r));
1080 assert_cc(sizeof(uint32_t) == sizeof(id));
1082 r = bus_method_call_with_reply (
1084 "org.freedesktop.systemd1",
1085 "/org/freedesktop/systemd1",
1086 "org.freedesktop.systemd1.Manager",
1090 DBUS_TYPE_UINT32, &id,
1095 if (!dbus_message_get_args(reply, NULL,
1096 DBUS_TYPE_OBJECT_PATH, &path,
1097 DBUS_TYPE_INVALID)) {
1098 log_error("Failed to parse reply");
1099 dbus_message_unref(reply);
1103 dbus_message_unref(reply);
1105 r = bus_method_call_with_reply (
1107 "org.freedesktop.systemd1",
1109 "org.freedesktop.systemd1.Job",
1122 static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
1123 DBusMessage *reply = NULL;
1124 dbus_bool_t b = FALSE;
1125 DBusMessageIter iter, sub;
1127 *interface = "org.freedesktop.systemd1.Unit",
1128 *property = "NeedDaemonReload",
1133 /* We ignore all errors here, since this is used to show a warning only */
1135 n = unit_name_mangle(unit);
1136 r = bus_method_call_with_reply (
1138 "org.freedesktop.systemd1",
1139 "/org/freedesktop/systemd1",
1140 "org.freedesktop.systemd1.Manager",
1144 DBUS_TYPE_STRING, n ? (const char**) &n : &unit,
1150 if (!dbus_message_get_args(reply, NULL,
1151 DBUS_TYPE_OBJECT_PATH, &path,
1155 dbus_message_unref(reply);
1156 r = bus_method_call_with_reply (
1158 "org.freedesktop.systemd1",
1160 "org.freedesktop.DBus.Properties",
1164 DBUS_TYPE_STRING, &interface,
1165 DBUS_TYPE_STRING, &property,
1170 if (!dbus_message_iter_init(reply, &iter) ||
1171 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
1174 dbus_message_iter_recurse(&iter, &sub);
1176 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
1179 dbus_message_iter_get_basic(&sub, &b);
1183 dbus_message_unref(reply);
1188 typedef struct WaitData {
1195 static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
1203 dbus_error_init(&error);
1205 log_debug("Got D-Bus request: %s.%s() on %s",
1206 dbus_message_get_interface(message),
1207 dbus_message_get_member(message),
1208 dbus_message_get_path(message));
1210 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
1211 log_error("Warning! D-Bus connection terminated.");
1212 dbus_connection_close(connection);
1214 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1216 const char *path, *result, *unit;
1217 dbus_bool_t success = true;
1219 if (dbus_message_get_args(message, &error,
1220 DBUS_TYPE_UINT32, &id,
1221 DBUS_TYPE_OBJECT_PATH, &path,
1222 DBUS_TYPE_STRING, &unit,
1223 DBUS_TYPE_STRING, &result,
1224 DBUS_TYPE_INVALID)) {
1227 p = set_remove(d->set, (char*) path);
1230 if (!isempty(result))
1231 d->result = strdup(result);
1234 d->name = strdup(unit);
1239 dbus_error_free(&error);
1240 if (dbus_message_get_args(message, &error,
1241 DBUS_TYPE_UINT32, &id,
1242 DBUS_TYPE_OBJECT_PATH, &path,
1243 DBUS_TYPE_STRING, &result,
1244 DBUS_TYPE_INVALID)) {
1247 /* Compatibility with older systemd versions <
1248 * 183 during upgrades. This should be dropped
1250 p = set_remove(d->set, (char*) path);
1254 d->result = strdup(result);
1259 dbus_error_free(&error);
1260 if (dbus_message_get_args(message, &error,
1261 DBUS_TYPE_UINT32, &id,
1262 DBUS_TYPE_OBJECT_PATH, &path,
1263 DBUS_TYPE_BOOLEAN, &success,
1264 DBUS_TYPE_INVALID)) {
1267 /* Compatibility with older systemd versions <
1268 * 19 during upgrades. This should be dropped
1271 p = set_remove(d->set, (char*) path);
1275 d->result = strdup("failed");
1281 log_error("Failed to parse message: %s", bus_error_message(&error));
1285 dbus_error_free(&error);
1286 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1289 static int enable_wait_for_jobs(DBusConnection *bus) {
1297 dbus_error_init(&error);
1298 dbus_bus_add_match(bus,
1300 "sender='org.freedesktop.systemd1',"
1301 "interface='org.freedesktop.systemd1.Manager',"
1302 "member='JobRemoved',"
1303 "path='/org/freedesktop/systemd1'",
1306 if (dbus_error_is_set(&error)) {
1307 log_error("Failed to add match: %s", bus_error_message(&error));
1308 dbus_error_free(&error);
1312 /* This is slightly dirty, since we don't undo the match registrations. */
1316 static int wait_for_jobs(DBusConnection *bus, Set *s) {
1326 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL))
1329 while (!set_isempty(s)) {
1331 if (!dbus_connection_read_write_dispatch(bus, -1)) {
1332 log_error("Disconnected from bus.");
1333 return -ECONNREFUSED;
1340 if (streq(d.result, "timeout"))
1341 log_error("Job for %s timed out.", strna(d.name));
1342 else if (streq(d.result, "canceled"))
1343 log_error("Job for %s canceled.", strna(d.name));
1344 else if (streq(d.result, "dependency"))
1345 log_error("A dependency job for %s failed. See 'journalctl -n' for details.", strna(d.name));
1346 else if (!streq(d.result, "done") && !streq(d.result, "skipped"))
1347 log_error("Job for %s failed. See 'systemctl status %s' and 'journalctl -n' for details.", strna(d.name), strna(d.name));
1350 if (streq_ptr(d.result, "timeout"))
1352 else if (streq_ptr(d.result, "canceled"))
1354 else if (!streq_ptr(d.result, "done") && !streq_ptr(d.result, "skipped"))
1365 dbus_connection_remove_filter(bus, wait_filter, &d);
1369 static int check_one_unit(DBusConnection *bus, char *name, bool quiet) {
1370 DBusMessage *reply = NULL;
1371 DBusMessageIter iter, sub;
1373 *interface = "org.freedesktop.systemd1.Unit",
1374 *property = "ActiveState";
1375 const char *path = NULL;
1382 n = unit_name_mangle(name);
1383 r = bus_method_call_with_reply (
1385 "org.freedesktop.systemd1",
1386 "/org/freedesktop/systemd1",
1387 "org.freedesktop.systemd1.Manager",
1391 DBUS_TYPE_STRING, n ? &n : &name,
1395 if ((r != -ENOMEM) && (!quiet))
1400 if (!dbus_message_get_args(reply, NULL,
1401 DBUS_TYPE_OBJECT_PATH, &path,
1402 DBUS_TYPE_INVALID)) {
1403 log_error("Failed to parse reply.");
1408 dbus_message_unref(reply);
1409 r = bus_method_call_with_reply (
1411 "org.freedesktop.systemd1",
1413 "org.freedesktop.DBus.Properties",
1417 DBUS_TYPE_STRING, &interface,
1418 DBUS_TYPE_STRING, &property,
1423 if (!dbus_message_iter_init(reply, &iter) ||
1424 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1425 log_error("Failed to parse reply.");
1430 dbus_message_iter_recurse(&iter, &sub);
1432 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1433 log_error("Failed to parse reply.");
1438 dbus_message_iter_get_basic(&sub, &state);
1443 if (streq(state, "active") || streq(state, "reloading"))
1446 r = 3; /* According to LSB: "program is not running" */
1450 dbus_message_unref(reply);
1455 static void check_triggering_units(
1456 DBusConnection *bus,
1457 const char *unit_name) {
1459 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1460 DBusMessageIter iter, sub;
1461 char *service_trigger = NULL;
1462 const char *interface = "org.freedesktop.systemd1.Unit",
1463 *triggered_by_property = "TriggeredBy";
1465 char _cleanup_free_ *unit_path = NULL, *n = NULL;
1466 bool print_warning_label = true;
1469 n = unit_name_mangle(unit_name);
1475 unit_path = unit_dbus_path_from_name(n);
1481 r = bus_method_call_with_reply (
1483 "org.freedesktop.systemd1",
1485 "org.freedesktop.DBus.Properties",
1489 DBUS_TYPE_STRING, &interface,
1490 DBUS_TYPE_STRING, &triggered_by_property,
1495 if (!dbus_message_iter_init(reply, &iter) ||
1496 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1497 log_error("Failed to parse reply.");
1501 dbus_message_iter_recurse(&iter, &sub);
1502 dbus_message_iter_recurse(&sub, &iter);
1505 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1507 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1508 log_error("Failed to parse reply.");
1512 dbus_message_iter_get_basic(&sub, &service_trigger);
1514 r = check_one_unit(bus, service_trigger, true);
1518 if (print_warning_label) {
1519 log_warning("Warning: Stopping %s, but it can still be activated by:", unit_name);
1520 print_warning_label = false;
1522 log_warning(" %s", service_trigger);
1525 dbus_message_iter_next(&sub);
1529 static int start_unit_one(
1530 DBusConnection *bus,
1537 _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
1540 _cleanup_free_ char *n, *p = NULL;
1547 n = unit_name_mangle(name);
1551 r = bus_method_call_with_reply(
1553 "org.freedesktop.systemd1",
1554 "/org/freedesktop/systemd1",
1555 "org.freedesktop.systemd1.Manager",
1559 DBUS_TYPE_STRING, &n,
1560 DBUS_TYPE_STRING, &mode,
1563 if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
1564 /* There's always a fallback possible for
1565 * legacy actions. */
1568 log_error("Failed to issue method call: %s", bus_error_message(error));
1573 if (!dbus_message_get_args(reply, error,
1574 DBUS_TYPE_OBJECT_PATH, &path,
1575 DBUS_TYPE_INVALID)) {
1576 log_error("Failed to parse reply: %s", bus_error_message(error));
1580 if (need_daemon_reload(bus, n))
1581 log_warning("Warning: Unit file of %s changed on disk, 'systemctl %s daemon-reload' recommended.",
1582 n, arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
1591 log_error("Failed to add path to set.");
1601 static enum action verb_to_action(const char *verb) {
1602 if (streq(verb, "halt"))
1604 else if (streq(verb, "poweroff"))
1605 return ACTION_POWEROFF;
1606 else if (streq(verb, "reboot"))
1607 return ACTION_REBOOT;
1608 else if (streq(verb, "kexec"))
1609 return ACTION_KEXEC;
1610 else if (streq(verb, "rescue"))
1611 return ACTION_RESCUE;
1612 else if (streq(verb, "emergency"))
1613 return ACTION_EMERGENCY;
1614 else if (streq(verb, "default"))
1615 return ACTION_DEFAULT;
1616 else if (streq(verb, "exit"))
1618 else if (streq(verb, "suspend"))
1619 return ACTION_SUSPEND;
1620 else if (streq(verb, "hibernate"))
1621 return ACTION_HIBERNATE;
1622 else if (streq(verb, "hybrid-sleep"))
1623 return ACTION_HYBRID_SLEEP;
1625 return ACTION_INVALID;
1628 static int start_unit(DBusConnection *bus, char **args) {
1630 static const char * const table[_ACTION_MAX] = {
1631 [ACTION_HALT] = SPECIAL_HALT_TARGET,
1632 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
1633 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
1634 [ACTION_KEXEC] = SPECIAL_KEXEC_TARGET,
1635 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
1636 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
1637 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
1638 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
1639 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
1640 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
1641 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET,
1642 [ACTION_EXIT] = SPECIAL_EXIT_TARGET,
1643 [ACTION_SUSPEND] = SPECIAL_SUSPEND_TARGET,
1644 [ACTION_HIBERNATE] = SPECIAL_HIBERNATE_TARGET,
1645 [ACTION_HYBRID_SLEEP] = SPECIAL_HYBRID_SLEEP_TARGET
1649 const char *method, *mode, *one_name;
1654 dbus_error_init(&error);
1658 ask_password_agent_open_if_enabled();
1660 if (arg_action == ACTION_SYSTEMCTL) {
1662 streq(args[0], "stop") ||
1663 streq(args[0], "condstop") ? "StopUnit" :
1664 streq(args[0], "reload") ? "ReloadUnit" :
1665 streq(args[0], "restart") ? "RestartUnit" :
1667 streq(args[0], "try-restart") ||
1668 streq(args[0], "condrestart") ? "TryRestartUnit" :
1670 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
1672 streq(args[0], "reload-or-try-restart") ||
1673 streq(args[0], "condreload") ||
1675 streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" :
1679 (streq(args[0], "isolate") ||
1680 streq(args[0], "rescue") ||
1681 streq(args[0], "emergency")) ? "isolate" : arg_job_mode;
1683 one_name = table[verb_to_action(args[0])];
1686 assert(arg_action < ELEMENTSOF(table));
1687 assert(table[arg_action]);
1689 method = "StartUnit";
1691 mode = (arg_action == ACTION_EMERGENCY ||
1692 arg_action == ACTION_RESCUE ||
1693 arg_action == ACTION_RUNLEVEL2 ||
1694 arg_action == ACTION_RUNLEVEL3 ||
1695 arg_action == ACTION_RUNLEVEL4 ||
1696 arg_action == ACTION_RUNLEVEL5) ? "isolate" : "replace";
1698 one_name = table[arg_action];
1701 if (!arg_no_block) {
1702 ret = enable_wait_for_jobs(bus);
1704 log_error("Could not watch jobs: %s", strerror(-ret));
1708 s = set_new(string_hash_func, string_compare_func);
1716 ret = start_unit_one(bus, method, one_name, mode, &error, s);
1718 ret = translate_bus_error_to_exit_status(ret, &error);
1720 STRV_FOREACH(name, args+1) {
1721 r = start_unit_one(bus, method, *name, mode, &error, s);
1723 ret = translate_bus_error_to_exit_status(r, &error);
1724 dbus_error_free(&error);
1729 if (!arg_no_block) {
1730 r = wait_for_jobs(bus, s);
1736 /* When stopping units, warn if they can still be triggered by
1737 * another active unit (socket, path, timer) */
1738 if (!arg_quiet && streq(method, "StopUnit")) {
1740 check_triggering_units(bus, one_name);
1742 STRV_FOREACH(name, args+1)
1743 check_triggering_units(bus, *name);
1749 dbus_error_free(&error);
1754 /* Ask systemd-logind, which might grant access to unprivileged users
1755 * through PolicyKit */
1756 static int reboot_with_logind(DBusConnection *bus, enum action a) {
1759 dbus_bool_t interactive = true;
1761 polkit_agent_open_if_enabled();
1769 case ACTION_POWEROFF:
1770 method = "PowerOff";
1773 case ACTION_SUSPEND:
1777 case ACTION_HIBERNATE:
1778 method = "Hibernate";
1781 case ACTION_HYBRID_SLEEP:
1782 method = "HybridSleep";
1789 return bus_method_call_with_reply (
1791 "org.freedesktop.login1",
1792 "/org/freedesktop/login1",
1793 "org.freedesktop.login1.Manager",
1797 DBUS_TYPE_BOOLEAN, &interactive,
1804 static int start_special(DBusConnection *bus, char **args) {
1810 a = verb_to_action(args[0]);
1812 if (arg_force >= 2 && geteuid() != 0) {
1813 log_error("Must be root.");
1817 if (arg_force >= 2 &&
1818 (a == ACTION_HALT ||
1819 a == ACTION_POWEROFF ||
1820 a == ACTION_REBOOT))
1823 if (arg_force >= 1 &&
1824 (a == ACTION_HALT ||
1825 a == ACTION_POWEROFF ||
1826 a == ACTION_REBOOT ||
1827 a == ACTION_KEXEC ||
1829 return daemon_reload(bus, args);
1831 /* first try logind, to allow authentication with polkit */
1832 if (geteuid() != 0 &&
1833 (a == ACTION_POWEROFF ||
1834 a == ACTION_REBOOT ||
1835 a == ACTION_SUSPEND ||
1836 a == ACTION_HIBERNATE ||
1837 a == ACTION_HYBRID_SLEEP)) {
1838 r = reboot_with_logind(bus, a);
1843 r = start_unit(bus, args);
1850 static int check_unit(DBusConnection *bus, char **args) {
1852 int r = 3; /* According to LSB: "program is not running" */
1857 STRV_FOREACH(name, args+1) {
1858 int state = check_one_unit(bus, *name, arg_quiet);
1868 static int kill_unit(DBusConnection *bus, char **args) {
1875 arg_kill_who = "all";
1877 STRV_FOREACH(name, args+1) {
1878 n = unit_name_mangle(*name);
1879 r = bus_method_call_with_reply (
1881 "org.freedesktop.systemd1",
1882 "/org/freedesktop/systemd1",
1883 "org.freedesktop.systemd1.Manager",
1887 DBUS_TYPE_STRING, n ? &n : name,
1888 DBUS_TYPE_STRING, &arg_kill_who,
1889 DBUS_TYPE_INT32, &arg_signal,
1898 typedef struct ExecStatusInfo {
1906 usec_t start_timestamp;
1907 usec_t exit_timestamp;
1912 LIST_FIELDS(struct ExecStatusInfo, exec);
1915 static void exec_status_info_free(ExecStatusInfo *i) {
1924 static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
1925 uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
1926 DBusMessageIter sub2, sub3;
1930 int32_t code, status;
1936 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
1939 dbus_message_iter_recurse(sub, &sub2);
1941 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
1944 if (!(i->path = strdup(path)))
1947 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
1948 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
1952 dbus_message_iter_recurse(&sub2, &sub3);
1953 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1954 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1955 dbus_message_iter_next(&sub3);
1960 if (!(i->argv = new0(char*, n+1)))
1964 dbus_message_iter_recurse(&sub2, &sub3);
1965 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1968 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1969 dbus_message_iter_get_basic(&sub3, &s);
1970 dbus_message_iter_next(&sub3);
1972 if (!(i->argv[n++] = strdup(s)))
1976 if (!dbus_message_iter_next(&sub2) ||
1977 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
1978 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
1979 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp_monotonic, true) < 0 ||
1980 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
1981 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp_monotonic, true) < 0 ||
1982 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
1983 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
1984 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
1988 i->start_timestamp = (usec_t) start_timestamp;
1989 i->exit_timestamp = (usec_t) exit_timestamp;
1990 i->pid = (pid_t) pid;
1997 typedef struct UnitStatusInfo {
1999 const char *load_state;
2000 const char *active_state;
2001 const char *sub_state;
2002 const char *unit_file_state;
2004 const char *description;
2005 const char *following;
2007 char **documentation;
2009 const char *fragment_path;
2010 const char *source_path;
2011 const char *default_control_group;
2013 const char *load_error;
2016 usec_t inactive_exit_timestamp;
2017 usec_t inactive_exit_timestamp_monotonic;
2018 usec_t active_enter_timestamp;
2019 usec_t active_exit_timestamp;
2020 usec_t inactive_enter_timestamp;
2022 bool need_daemon_reload;
2027 const char *status_text;
2030 usec_t start_timestamp;
2031 usec_t exit_timestamp;
2033 int exit_code, exit_status;
2035 usec_t condition_timestamp;
2036 bool condition_result;
2039 unsigned n_accepted;
2040 unsigned n_connections;
2044 const char *sysfs_path;
2046 /* Mount, Automount */
2052 LIST_HEAD(ExecStatusInfo, exec);
2055 static void print_status_info(UnitStatusInfo *i) {
2057 const char *on, *off, *ss;
2059 char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
2060 char since2[FORMAT_TIMESTAMP_MAX], *s2;
2065 /* This shows pretty information about a unit. See
2066 * print_property() for a low-level property printer */
2068 printf("%s", strna(i->id));
2070 if (i->description && !streq_ptr(i->id, i->description))
2071 printf(" - %s", i->description);
2076 printf("\t Follow: unit currently follows state of %s\n", i->following);
2078 if (streq_ptr(i->load_state, "error")) {
2079 on = ansi_highlight_red(true);
2080 off = ansi_highlight_red(false);
2084 path = i->source_path ? i->source_path : i->fragment_path;
2087 printf("\t Loaded: %s%s%s (Reason: %s)\n", on, strna(i->load_state), off, i->load_error);
2088 else if (path && i->unit_file_state)
2089 printf("\t Loaded: %s%s%s (%s; %s)\n", on, strna(i->load_state), off, path, i->unit_file_state);
2091 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, path);
2093 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
2095 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
2097 if (streq_ptr(i->active_state, "failed")) {
2098 on = ansi_highlight_red(true);
2099 off = ansi_highlight_red(false);
2100 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
2101 on = ansi_highlight_green(true);
2102 off = ansi_highlight_green(false);
2107 printf("\t Active: %s%s (%s)%s",
2109 strna(i->active_state),
2113 printf("\t Active: %s%s%s",
2115 strna(i->active_state),
2118 if (!isempty(i->result) && !streq(i->result, "success"))
2119 printf(" (Result: %s)", i->result);
2121 timestamp = (streq_ptr(i->active_state, "active") ||
2122 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
2123 (streq_ptr(i->active_state, "inactive") ||
2124 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
2125 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
2126 i->active_exit_timestamp;
2128 s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp);
2129 s2 = format_timestamp(since2, sizeof(since2), timestamp);
2132 printf(" since %s; %s\n", s2, s1);
2134 printf(" since %s\n", s2);
2138 if (!i->condition_result && i->condition_timestamp > 0) {
2139 s1 = format_timestamp_pretty(since1, sizeof(since1), i->condition_timestamp);
2140 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
2143 printf("\t start condition failed at %s; %s\n", s2, s1);
2145 printf("\t start condition failed at %s\n", s2);
2149 printf("\t Device: %s\n", i->sysfs_path);
2151 printf("\t Where: %s\n", i->where);
2153 printf("\t What: %s\n", i->what);
2155 if (!strv_isempty(i->documentation)) {
2159 STRV_FOREACH(t, i->documentation) {
2161 printf("\t Docs: %s\n", *t);
2164 printf("\t %s\n", *t);
2169 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
2171 LIST_FOREACH(exec, p, i->exec) {
2175 /* Only show exited processes here */
2179 t = strv_join(p->argv, " ");
2180 printf("\t Process: %u %s=%s ", p->pid, p->name, strna(t));
2183 good = is_clean_exit_lsb(p->code, p->status, NULL);
2185 on = ansi_highlight_red(true);
2186 off = ansi_highlight_red(false);
2190 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
2192 if (p->code == CLD_EXITED) {
2195 printf("status=%i", p->status);
2197 c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD);
2202 printf("signal=%s", signal_to_string(p->status));
2204 printf(")%s\n", off);
2206 if (i->main_pid == p->pid &&
2207 i->start_timestamp == p->start_timestamp &&
2208 i->exit_timestamp == p->start_timestamp)
2209 /* Let's not show this twice */
2212 if (p->pid == i->control_pid)
2216 if (i->main_pid > 0 || i->control_pid > 0) {
2219 if (i->main_pid > 0) {
2220 printf("Main PID: %u", (unsigned) i->main_pid);
2224 get_process_comm(i->main_pid, &t);
2229 } else if (i->exit_code > 0) {
2230 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
2232 if (i->exit_code == CLD_EXITED) {
2235 printf("status=%i", i->exit_status);
2237 c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD);
2242 printf("signal=%s", signal_to_string(i->exit_status));
2247 if (i->main_pid > 0 && i->control_pid > 0)
2250 if (i->control_pid > 0) {
2253 printf(" Control: %u", (unsigned) i->control_pid);
2255 get_process_comm(i->control_pid, &t);
2266 printf("\t Status: \"%s\"\n", i->status_text);
2268 if (i->default_control_group) {
2271 printf("\t CGroup: %s\n", i->default_control_group);
2273 if (arg_transport != TRANSPORT_SSH) {
2283 if (i->main_pid > 0)
2284 extra[k++] = i->main_pid;
2286 if (i->control_pid > 0)
2287 extra[k++] = i->control_pid;
2289 show_cgroup_and_extra_by_spec(i->default_control_group, "\t\t ", c, false, arg_all, extra, k);
2293 if (i->id && arg_transport != TRANSPORT_SSH) {
2295 arg_all * OUTPUT_SHOW_ALL |
2296 (!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
2297 on_tty() * OUTPUT_COLOR |
2298 !arg_quiet * OUTPUT_WARN_CUTOFF;
2301 show_journal_by_unit(stdout,
2305 i->inactive_exit_timestamp_monotonic,
2310 if (i->need_daemon_reload)
2311 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
2312 ansi_highlight_red(true),
2313 ansi_highlight_red(false),
2314 arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
2317 static void show_unit_help(UnitStatusInfo *i) {
2322 if (!i->documentation) {
2323 log_info("Documentation for %s not known.", i->id);
2327 STRV_FOREACH(p, i->documentation) {
2329 if (startswith(*p, "man:")) {
2332 char *page = NULL, *section = NULL;
2333 const char *args[4] = { "man", NULL, NULL, NULL };
2338 if ((*p)[k-1] == ')')
2339 e = strrchr(*p, '(');
2342 page = strndup((*p) + 4, e - *p - 4);
2348 section = strndup(e + 1, *p + k - e - 2);
2362 log_error("Failed to fork: %m");
2370 execvp(args[0], (char**) args);
2371 log_error("Failed to execute man: %m");
2372 _exit(EXIT_FAILURE);
2378 wait_for_terminate(pid, NULL);
2380 log_info("Can't show: %s", *p);
2384 static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
2390 switch (dbus_message_iter_get_arg_type(iter)) {
2392 case DBUS_TYPE_STRING: {
2395 dbus_message_iter_get_basic(iter, &s);
2398 if (streq(name, "Id"))
2400 else if (streq(name, "LoadState"))
2402 else if (streq(name, "ActiveState"))
2403 i->active_state = s;
2404 else if (streq(name, "SubState"))
2406 else if (streq(name, "Description"))
2408 else if (streq(name, "FragmentPath"))
2409 i->fragment_path = s;
2410 else if (streq(name, "SourcePath"))
2412 else if (streq(name, "DefaultControlGroup"))
2413 i->default_control_group = s;
2414 else if (streq(name, "StatusText"))
2416 else if (streq(name, "SysFSPath"))
2418 else if (streq(name, "Where"))
2420 else if (streq(name, "What"))
2422 else if (streq(name, "Following"))
2424 else if (streq(name, "UnitFileState"))
2425 i->unit_file_state = s;
2426 else if (streq(name, "Result"))
2433 case DBUS_TYPE_BOOLEAN: {
2436 dbus_message_iter_get_basic(iter, &b);
2438 if (streq(name, "Accept"))
2440 else if (streq(name, "NeedDaemonReload"))
2441 i->need_daemon_reload = b;
2442 else if (streq(name, "ConditionResult"))
2443 i->condition_result = b;
2448 case DBUS_TYPE_UINT32: {
2451 dbus_message_iter_get_basic(iter, &u);
2453 if (streq(name, "MainPID")) {
2455 i->main_pid = (pid_t) u;
2458 } else if (streq(name, "ControlPID"))
2459 i->control_pid = (pid_t) u;
2460 else if (streq(name, "ExecMainPID")) {
2462 i->main_pid = (pid_t) u;
2463 } else if (streq(name, "NAccepted"))
2465 else if (streq(name, "NConnections"))
2466 i->n_connections = u;
2471 case DBUS_TYPE_INT32: {
2474 dbus_message_iter_get_basic(iter, &j);
2476 if (streq(name, "ExecMainCode"))
2477 i->exit_code = (int) j;
2478 else if (streq(name, "ExecMainStatus"))
2479 i->exit_status = (int) j;
2484 case DBUS_TYPE_UINT64: {
2487 dbus_message_iter_get_basic(iter, &u);
2489 if (streq(name, "ExecMainStartTimestamp"))
2490 i->start_timestamp = (usec_t) u;
2491 else if (streq(name, "ExecMainExitTimestamp"))
2492 i->exit_timestamp = (usec_t) u;
2493 else if (streq(name, "ActiveEnterTimestamp"))
2494 i->active_enter_timestamp = (usec_t) u;
2495 else if (streq(name, "InactiveEnterTimestamp"))
2496 i->inactive_enter_timestamp = (usec_t) u;
2497 else if (streq(name, "InactiveExitTimestamp"))
2498 i->inactive_exit_timestamp = (usec_t) u;
2499 else if (streq(name, "InactiveExitTimestampMonotonic"))
2500 i->inactive_exit_timestamp_monotonic = (usec_t) u;
2501 else if (streq(name, "ActiveExitTimestamp"))
2502 i->active_exit_timestamp = (usec_t) u;
2503 else if (streq(name, "ConditionTimestamp"))
2504 i->condition_timestamp = (usec_t) u;
2509 case DBUS_TYPE_ARRAY: {
2511 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
2512 startswith(name, "Exec")) {
2513 DBusMessageIter sub;
2515 dbus_message_iter_recurse(iter, &sub);
2516 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2517 ExecStatusInfo *info;
2520 if (!(info = new0(ExecStatusInfo, 1)))
2523 if (!(info->name = strdup(name))) {
2528 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
2533 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
2535 dbus_message_iter_next(&sub);
2537 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING &&
2538 streq(name, "Documentation")) {
2540 DBusMessageIter sub;
2542 dbus_message_iter_recurse(iter, &sub);
2543 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING) {
2547 dbus_message_iter_get_basic(&sub, &s);
2549 l = strv_append(i->documentation, s);
2553 strv_free(i->documentation);
2554 i->documentation = l;
2556 dbus_message_iter_next(&sub);
2563 case DBUS_TYPE_STRUCT: {
2565 if (streq(name, "LoadError")) {
2566 DBusMessageIter sub;
2567 const char *n, *message;
2570 dbus_message_iter_recurse(iter, &sub);
2572 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &n, true);
2576 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &message, false);
2580 if (!isempty(message))
2581 i->load_error = message;
2591 static int print_property(const char *name, DBusMessageIter *iter) {
2595 /* This is a low-level property printer, see
2596 * print_status_info() for the nicer output */
2598 if (arg_property && !strv_find(arg_property, name))
2601 switch (dbus_message_iter_get_arg_type(iter)) {
2603 case DBUS_TYPE_STRUCT: {
2604 DBusMessageIter sub;
2605 dbus_message_iter_recurse(iter, &sub);
2607 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
2610 dbus_message_iter_get_basic(&sub, &u);
2613 printf("%s=%u\n", name, (unsigned) u);
2615 printf("%s=\n", name);
2618 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
2621 dbus_message_iter_get_basic(&sub, &s);
2623 if (arg_all || s[0])
2624 printf("%s=%s\n", name, s);
2627 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "LoadError")) {
2628 const char *a = NULL, *b = NULL;
2630 if (bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &a, true) >= 0)
2631 bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &b, false);
2633 if (arg_all || !isempty(a) || !isempty(b))
2634 printf("%s=%s \"%s\"\n", name, strempty(a), strempty(b));
2642 case DBUS_TYPE_ARRAY:
2644 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "EnvironmentFiles")) {
2645 DBusMessageIter sub, sub2;
2647 dbus_message_iter_recurse(iter, &sub);
2648 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2652 dbus_message_iter_recurse(&sub, &sub2);
2654 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) >= 0 &&
2655 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, false) >= 0)
2656 printf("EnvironmentFile=%s (ignore_errors=%s)\n", path, yes_no(ignore));
2658 dbus_message_iter_next(&sub);
2663 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2664 DBusMessageIter sub, sub2;
2666 dbus_message_iter_recurse(iter, &sub);
2667 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2668 const char *type, *path;
2670 dbus_message_iter_recurse(&sub, &sub2);
2672 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2673 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2674 printf("%s=%s\n", type, path);
2676 dbus_message_iter_next(&sub);
2681 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2682 DBusMessageIter sub, sub2;
2684 dbus_message_iter_recurse(iter, &sub);
2685 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2687 uint64_t value, next_elapse;
2689 dbus_message_iter_recurse(&sub, &sub2);
2691 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
2692 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
2693 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
2694 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
2696 printf("%s={ value=%s ; next_elapse=%s }\n",
2698 format_timespan(timespan1, sizeof(timespan1), value),
2699 format_timespan(timespan2, sizeof(timespan2), next_elapse));
2702 dbus_message_iter_next(&sub);
2707 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "ControlGroupAttributes")) {
2708 DBusMessageIter sub, sub2;
2710 dbus_message_iter_recurse(iter, &sub);
2711 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2712 const char *controller, *attr, *value;
2714 dbus_message_iter_recurse(&sub, &sub2);
2716 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &controller, true) >= 0 &&
2717 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &attr, true) >= 0 &&
2718 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &value, false) >= 0) {
2720 printf("ControlGroupAttribute={ controller=%s ; attribute=%s ; value=\"%s\" }\n",
2726 dbus_message_iter_next(&sub);
2731 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
2732 DBusMessageIter sub;
2734 dbus_message_iter_recurse(iter, &sub);
2735 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2736 ExecStatusInfo info;
2739 if (exec_status_info_deserialize(&sub, &info) >= 0) {
2740 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
2743 t = strv_join(info.argv, " ");
2745 printf("%s={ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
2749 yes_no(info.ignore),
2750 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
2751 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
2752 (unsigned) info. pid,
2753 sigchld_code_to_string(info.code),
2755 info.code == CLD_EXITED ? "" : "/",
2756 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
2762 strv_free(info.argv);
2764 dbus_message_iter_next(&sub);
2773 if (generic_print_property(name, iter, arg_all) > 0)
2777 printf("%s=[unprintable]\n", name);
2782 static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
2783 DBusMessage *reply = NULL;
2784 const char *interface = "";
2786 DBusMessageIter iter, sub, sub2, sub3;
2787 UnitStatusInfo info;
2795 r = bus_method_call_with_reply (
2797 "org.freedesktop.systemd1",
2799 "org.freedesktop.DBus.Properties",
2803 DBUS_TYPE_STRING, &interface,
2808 if (!dbus_message_iter_init(reply, &iter) ||
2809 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
2810 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
2811 log_error("Failed to parse reply.");
2816 dbus_message_iter_recurse(&iter, &sub);
2823 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2826 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
2827 log_error("Failed to parse reply.");
2832 dbus_message_iter_recurse(&sub, &sub2);
2834 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
2835 log_error("Failed to parse reply.");
2840 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
2841 log_error("Failed to parse reply.");
2846 dbus_message_iter_recurse(&sub2, &sub3);
2848 if (show_properties)
2849 r = print_property(name, &sub3);
2851 r = status_property(name, &sub3, &info);
2854 log_error("Failed to parse reply.");
2859 dbus_message_iter_next(&sub);
2864 if (!show_properties) {
2865 if (streq(verb, "help"))
2866 show_unit_help(&info);
2868 print_status_info(&info);
2871 strv_free(info.documentation);
2873 if (!streq_ptr(info.active_state, "active") &&
2874 !streq_ptr(info.active_state, "reloading") &&
2875 streq(verb, "status"))
2876 /* According to LSB: "program not running" */
2879 while ((p = info.exec)) {
2880 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
2881 exec_status_info_free(p);
2886 dbus_message_unref(reply);
2891 static int show_one_by_pid(const char *verb, DBusConnection *bus, uint32_t pid, bool *new_line) {
2892 DBusMessage *reply = NULL;
2893 const char *path = NULL;
2897 dbus_error_init(&error);
2899 r = bus_method_call_with_reply (
2901 "org.freedesktop.systemd1",
2902 "/org/freedesktop/systemd1",
2903 "org.freedesktop.systemd1.Manager",
2907 DBUS_TYPE_UINT32, &pid,
2912 if (!dbus_message_get_args(reply, &error,
2913 DBUS_TYPE_OBJECT_PATH, &path,
2914 DBUS_TYPE_INVALID)) {
2915 log_error("Failed to parse reply: %s", bus_error_message(&error));
2920 r = show_one(verb, bus, path, false, new_line);
2924 dbus_message_unref(reply);
2926 dbus_error_free(&error);
2931 static int show(DBusConnection *bus, char **args) {
2933 bool show_properties, new_line = false;
2939 show_properties = streq(args[0], "show");
2941 if (show_properties)
2942 pager_open_if_enabled();
2944 if (show_properties && strv_length(args) <= 1) {
2945 /* If not argument is specified inspect the manager
2948 return show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line);
2951 STRV_FOREACH(name, args+1) {
2954 if (safe_atou32(*name, &id) < 0) {
2956 /* Interpret as unit name */
2958 n = unit_name_mangle(*name);
2959 p = unit_dbus_path_from_name(n ? n : *name);
2964 r = show_one(args[0], bus, p, show_properties, &new_line);
2970 } else if (show_properties) {
2972 /* Interpret as job id */
2975 if (asprintf(&p, "/org/freedesktop/systemd1/job/%u", id) < 0)
2978 r = show_one(args[0], bus, p, show_properties, &new_line);
2986 /* Interpret as PID */
2988 r = show_one_by_pid(args[0], bus, id, &new_line);
2997 static int dump(DBusConnection *bus, char **args) {
2998 DBusMessage *reply = NULL;
3003 dbus_error_init(&error);
3005 pager_open_if_enabled();
3007 r = bus_method_call_with_reply (
3009 "org.freedesktop.systemd1",
3010 "/org/freedesktop/systemd1",
3011 "org.freedesktop.systemd1.Manager",
3019 if (!dbus_message_get_args(reply, &error,
3020 DBUS_TYPE_STRING, &text,
3021 DBUS_TYPE_INVALID)) {
3022 log_error("Failed to parse reply: %s", bus_error_message(&error));
3027 fputs(text, stdout);
3031 dbus_message_unref(reply);
3033 dbus_error_free(&error);
3038 static int snapshot(DBusConnection *bus, char **args) {
3039 DBusMessage *reply = NULL;
3042 dbus_bool_t cleanup = FALSE;
3043 DBusMessageIter iter, sub;
3045 *name = "", *path, *id,
3046 *interface = "org.freedesktop.systemd1.Unit",
3050 dbus_error_init(&error);
3052 if (strv_length(args) > 1)
3055 n = unit_name_mangle(name);
3056 r = bus_method_call_with_reply (
3058 "org.freedesktop.systemd1",
3059 "/org/freedesktop/systemd1",
3060 "org.freedesktop.systemd1.Manager",
3064 DBUS_TYPE_STRING, n ? (const char**) &n : &name,
3065 DBUS_TYPE_BOOLEAN, &cleanup,
3071 if (!dbus_message_get_args(reply, &error,
3072 DBUS_TYPE_OBJECT_PATH, &path,
3073 DBUS_TYPE_INVALID)) {
3074 log_error("Failed to parse reply: %s", bus_error_message(&error));
3079 dbus_message_unref(reply);
3080 r = bus_method_call_with_reply (
3082 "org.freedesktop.systemd1",
3084 "org.freedesktop.DBus.Properties",
3088 DBUS_TYPE_STRING, &interface,
3089 DBUS_TYPE_STRING, &property,
3094 if (!dbus_message_iter_init(reply, &iter) ||
3095 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3096 log_error("Failed to parse reply.");
3101 dbus_message_iter_recurse(&iter, &sub);
3103 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
3104 log_error("Failed to parse reply.");
3109 dbus_message_iter_get_basic(&sub, &id);
3116 dbus_message_unref(reply);
3118 dbus_error_free(&error);
3123 static int delete_snapshot(DBusConnection *bus, char **args) {
3124 DBusMessage *reply = NULL;
3131 dbus_error_init(&error);
3133 STRV_FOREACH(name, args+1) {
3134 const char *path = NULL;
3137 n = unit_name_mangle(*name);
3138 r = bus_method_call_with_reply (
3140 "org.freedesktop.systemd1",
3141 "/org/freedesktop/systemd1",
3142 "org.freedesktop.systemd1.Manager",
3146 DBUS_TYPE_STRING, n ? &n : name,
3152 if (!dbus_message_get_args(reply, &error,
3153 DBUS_TYPE_OBJECT_PATH, &path,
3154 DBUS_TYPE_INVALID)) {
3155 log_error("Failed to parse reply: %s", bus_error_message(&error));
3157 dbus_message_unref(reply);
3158 dbus_error_free(&error);
3161 dbus_message_unref(reply);
3163 r = bus_method_call_with_reply (
3165 "org.freedesktop.systemd1",
3167 "org.freedesktop.systemd1.Snapshot",
3180 static int daemon_reload(DBusConnection *bus, char **args) {
3185 if (arg_action == ACTION_RELOAD)
3187 else if (arg_action == ACTION_REEXEC)
3188 method = "Reexecute";
3190 assert(arg_action == ACTION_SYSTEMCTL);
3193 streq(args[0], "clear-jobs") ||
3194 streq(args[0], "cancel") ? "ClearJobs" :
3195 streq(args[0], "daemon-reexec") ? "Reexecute" :
3196 streq(args[0], "reset-failed") ? "ResetFailed" :
3197 streq(args[0], "halt") ? "Halt" :
3198 streq(args[0], "poweroff") ? "PowerOff" :
3199 streq(args[0], "reboot") ? "Reboot" :
3200 streq(args[0], "kexec") ? "KExec" :
3201 streq(args[0], "exit") ? "Exit" :
3202 /* "daemon-reload" */ "Reload";
3205 r = bus_method_call_with_reply (
3207 "org.freedesktop.systemd1",
3208 "/org/freedesktop/systemd1",
3209 "org.freedesktop.systemd1.Manager",
3215 if (r == -ENOENT && arg_action != ACTION_SYSTEMCTL)
3216 /* There's always a fallback possible for
3217 * legacy actions. */
3219 else if (r == -ETIMEDOUT && streq(method, "Reexecute"))
3220 /* On reexecution, we expect a disconnect, not
3224 log_error("Failed to issue method call: %s", bus_error_message(&error));
3225 dbus_error_free(&error);
3230 static int reset_failed(DBusConnection *bus, char **args) {
3234 if (strv_length(args) <= 1)
3235 return daemon_reload(bus, args);
3237 STRV_FOREACH(name, args+1) {
3238 n = unit_name_mangle(*name);
3239 r = bus_method_call_with_reply (
3241 "org.freedesktop.systemd1",
3242 "/org/freedesktop/systemd1",
3243 "org.freedesktop.systemd1.Manager",
3247 DBUS_TYPE_STRING, n ? &n : name,
3258 static int show_enviroment(DBusConnection *bus, char **args) {
3259 DBusMessage *reply = NULL;
3260 DBusMessageIter iter, sub, sub2;
3263 *interface = "org.freedesktop.systemd1.Manager",
3264 *property = "Environment";
3266 pager_open_if_enabled();
3268 r = bus_method_call_with_reply (
3270 "org.freedesktop.systemd1",
3271 "/org/freedesktop/systemd1",
3272 "org.freedesktop.DBus.Properties",
3276 DBUS_TYPE_STRING, &interface,
3277 DBUS_TYPE_STRING, &property,
3282 if (!dbus_message_iter_init(reply, &iter) ||
3283 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3284 log_error("Failed to parse reply.");
3289 dbus_message_iter_recurse(&iter, &sub);
3291 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3292 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3293 log_error("Failed to parse reply.");
3298 dbus_message_iter_recurse(&sub, &sub2);
3300 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3303 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3304 log_error("Failed to parse reply.");
3309 dbus_message_iter_get_basic(&sub2, &text);
3310 printf("%s\n", text);
3312 dbus_message_iter_next(&sub2);
3319 dbus_message_unref(reply);
3324 static int switch_root(DBusConnection *bus, char **args) {
3326 const char *root, *init;
3328 l = strv_length(args);
3329 if (l < 2 || l > 3) {
3330 log_error("Wrong number of arguments.");
3335 init = l >= 3 ? args[2] : "";
3337 return bus_method_call_with_reply (
3339 "org.freedesktop.systemd1",
3340 "/org/freedesktop/systemd1",
3341 "org.freedesktop.systemd1.Manager",
3345 DBUS_TYPE_STRING, &root,
3346 DBUS_TYPE_STRING, &init,
3350 static int set_environment(DBusConnection *bus, char **args) {
3351 _cleanup_dbus_message_unref_ DBusMessage *m = NULL, *reply = NULL;
3354 DBusMessageIter iter;
3359 dbus_error_init(&error);
3361 method = streq(args[0], "set-environment")
3363 : "UnsetEnvironment";
3365 m = dbus_message_new_method_call(
3366 "org.freedesktop.systemd1",
3367 "/org/freedesktop/systemd1",
3368 "org.freedesktop.systemd1.Manager",
3373 dbus_message_iter_init_append(m, &iter);
3375 r = bus_append_strv_iter(&iter, args + 1);
3379 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3381 log_error("Failed to issue method call: %s", bus_error_message(&error));
3389 dbus_error_free(&error);
3393 static int enable_sysv_units(char **args) {
3396 #if defined (HAVE_SYSV_COMPAT) && (defined(TARGET_FEDORA) || defined(TARGET_MANDRIVA) || defined(TARGET_SUSE) || defined(TARGET_ALTLINUX) || defined(TARGET_MAGEIA))
3397 const char *verb = args[0];
3398 unsigned f = 1, t = 1;
3401 if (arg_scope != UNIT_FILE_SYSTEM)
3404 if (!streq(verb, "enable") &&
3405 !streq(verb, "disable") &&
3406 !streq(verb, "is-enabled"))
3409 /* Processes all SysV units, and reshuffles the array so that
3410 * afterwards only the native units remain */
3413 r = lookup_paths_init(&paths, SYSTEMD_SYSTEM, false, NULL, NULL, NULL);
3418 for (f = 1; args[f]; f++) {
3421 bool found_native = false, found_sysv;
3423 const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL };
3424 char **k, *l, *q = NULL;
3431 if (!endswith(name, ".service"))
3434 if (path_is_absolute(name))
3437 STRV_FOREACH(k, paths.unit_path) {
3440 if (!isempty(arg_root))
3441 asprintf(&p, "%s/%s/%s", arg_root, *k, name);
3443 asprintf(&p, "%s/%s", *k, name);
3450 found_native = access(p, F_OK) >= 0;
3461 if (!isempty(arg_root))
3462 asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name);
3464 asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name);
3470 p[strlen(p) - sizeof(".service") + 1] = 0;
3471 found_sysv = access(p, F_OK) >= 0;
3478 /* Mark this entry, so that we don't try enabling it as native unit */
3479 args[f] = (char*) "";
3481 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name);
3483 if (!isempty(arg_root))
3484 argv[c++] = q = strappend("--root=", arg_root);
3486 argv[c++] = path_get_file_name(p);
3488 streq(verb, "enable") ? "on" :
3489 streq(verb, "disable") ? "off" : "--level=5";
3492 l = strv_join((char**)argv, " ");
3500 log_info("Executing %s", l);
3505 log_error("Failed to fork: %m");
3510 } else if (pid == 0) {
3513 execv(argv[0], (char**) argv);
3514 _exit(EXIT_FAILURE);
3520 j = wait_for_terminate(pid, &status);
3522 log_error("Failed to wait for child: %s", strerror(-r));
3527 if (status.si_code == CLD_EXITED) {
3528 if (streq(verb, "is-enabled")) {
3529 if (status.si_status == 0) {
3538 } else if (status.si_status != 0) {
3549 lookup_paths_free(&paths);
3551 /* Drop all SysV units */
3552 for (f = 1, t = 1; args[f]; f++) {
3554 if (isempty(args[f]))
3557 args[t++] = args[f];
3566 static int mangle_names(char **original_names, char ***mangled_names) {
3567 char **i, **l, **name;
3569 l = new(char*, strv_length(original_names) + 1);
3574 STRV_FOREACH(name, original_names) {
3576 /* When enabling units qualified path names are OK,
3577 * too, hence allow them explicitly. */
3582 *i = unit_name_mangle(*name);
3598 static int enable_unit(DBusConnection *bus, char **args) {
3599 const char *verb = args[0];
3600 UnitFileChange *changes = NULL;
3601 unsigned n_changes = 0, i;
3602 int carries_install_info = -1;
3603 DBusMessage *m = NULL, *reply = NULL;
3606 char **mangled_names = NULL;
3608 r = enable_sysv_units(args);
3615 dbus_error_init(&error);
3617 if (!bus || avoid_bus()) {
3618 if (streq(verb, "enable")) {
3619 r = unit_file_enable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3620 carries_install_info = r;
3621 } else if (streq(verb, "disable"))
3622 r = unit_file_disable(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
3623 else if (streq(verb, "reenable")) {
3624 r = unit_file_reenable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3625 carries_install_info = r;
3626 } else if (streq(verb, "link"))
3627 r = unit_file_link(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3628 else if (streq(verb, "preset")) {
3629 r = unit_file_preset(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3630 carries_install_info = r;
3631 } else if (streq(verb, "mask"))
3632 r = unit_file_mask(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
3633 else if (streq(verb, "unmask"))
3634 r = unit_file_unmask(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
3636 assert_not_reached("Unknown verb");
3639 log_error("Operation failed: %s", strerror(-r));
3644 for (i = 0; i < n_changes; i++) {
3645 if (changes[i].type == UNIT_FILE_SYMLINK)
3646 log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path);
3648 log_info("rm '%s'", changes[i].path);
3655 bool send_force = true, expect_carries_install_info = false;
3657 DBusMessageIter iter, sub, sub2;
3659 if (streq(verb, "enable")) {
3660 method = "EnableUnitFiles";
3661 expect_carries_install_info = true;
3662 } else if (streq(verb, "disable")) {
3663 method = "DisableUnitFiles";
3665 } else if (streq(verb, "reenable")) {
3666 method = "ReenableUnitFiles";
3667 expect_carries_install_info = true;
3668 } else if (streq(verb, "link"))
3669 method = "LinkUnitFiles";
3670 else if (streq(verb, "preset")) {
3671 method = "PresetUnitFiles";
3672 expect_carries_install_info = true;
3673 } else if (streq(verb, "mask"))
3674 method = "MaskUnitFiles";
3675 else if (streq(verb, "unmask")) {
3676 method = "UnmaskUnitFiles";
3679 assert_not_reached("Unknown verb");
3681 m = dbus_message_new_method_call(
3682 "org.freedesktop.systemd1",
3683 "/org/freedesktop/systemd1",
3684 "org.freedesktop.systemd1.Manager",
3691 dbus_message_iter_init_append(m, &iter);
3693 r = mangle_names(args+1, &mangled_names);
3697 r = bus_append_strv_iter(&iter, mangled_names);
3699 log_error("Failed to append unit files.");
3704 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &a)) {
3705 log_error("Failed to append runtime boolean.");
3713 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b)) {
3714 log_error("Failed to append force boolean.");
3720 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3722 log_error("Failed to issue method call: %s", bus_error_message(&error));
3727 if (!dbus_message_iter_init(reply, &iter)) {
3728 log_error("Failed to initialize iterator.");
3732 if (expect_carries_install_info) {
3733 r = bus_iter_get_basic_and_next(&iter, DBUS_TYPE_BOOLEAN, &b, true);
3735 log_error("Failed to parse reply.");
3739 carries_install_info = b;
3742 if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
3743 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
3744 log_error("Failed to parse reply.");
3749 dbus_message_iter_recurse(&iter, &sub);
3750 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
3751 const char *type, *path, *source;
3753 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
3754 log_error("Failed to parse reply.");
3759 dbus_message_iter_recurse(&sub, &sub2);
3761 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
3762 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0 ||
3763 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &source, false) < 0) {
3764 log_error("Failed to parse reply.");
3770 if (streq(type, "symlink"))
3771 log_info("ln -s '%s' '%s'", source, path);
3773 log_info("rm '%s'", path);
3776 dbus_message_iter_next(&sub);
3779 /* Try to reload if enabeld */
3781 r = daemon_reload(bus, args);
3784 if (carries_install_info == 0)
3785 log_warning("The unit files have no [Install] section. They are not meant to be enabled using systemctl.");
3789 dbus_message_unref(m);
3792 dbus_message_unref(reply);
3794 unit_file_changes_free(changes, n_changes);
3796 dbus_error_free(&error);
3798 strv_free(mangled_names);
3803 static int unit_is_enabled(DBusConnection *bus, char **args) {
3806 DBusMessage *reply = NULL;
3810 dbus_error_init(&error);
3812 r = enable_sysv_units(args);
3818 if (!bus || avoid_bus()) {
3820 STRV_FOREACH(name, args+1) {
3821 UnitFileState state;
3823 state = unit_file_get_state(arg_scope, arg_root, *name);
3829 if (state == UNIT_FILE_ENABLED ||
3830 state == UNIT_FILE_ENABLED_RUNTIME ||
3831 state == UNIT_FILE_STATIC)
3835 puts(unit_file_state_to_string(state));
3839 STRV_FOREACH(name, args+1) {
3842 r = bus_method_call_with_reply (
3844 "org.freedesktop.systemd1",
3845 "/org/freedesktop/systemd1",
3846 "org.freedesktop.systemd1.Manager",
3850 DBUS_TYPE_STRING, name,
3855 if (!dbus_message_get_args(reply, &error,
3856 DBUS_TYPE_STRING, &s,
3857 DBUS_TYPE_INVALID)) {
3858 log_error("Failed to parse reply: %s", bus_error_message(&error));
3863 dbus_message_unref(reply);
3866 if (streq(s, "enabled") ||
3867 streq(s, "enabled-runtime") ||
3876 r = enabled ? 0 : 1;
3880 dbus_message_unref(reply);
3882 dbus_error_free(&error);
3886 static int systemctl_help(void) {
3888 pager_open_if_enabled();
3890 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
3891 "Query or send control commands to the systemd manager.\n\n"
3892 " -h --help Show this help\n"
3893 " --version Show package version\n"
3894 " -t --type=TYPE List only units of a particular type\n"
3895 " -p --property=NAME Show only properties by this name\n"
3896 " -a --all Show all units/properties, including dead/empty ones\n"
3897 " --failed Show only failed units\n"
3898 " --full Don't ellipsize unit names on output\n"
3899 " --fail When queueing a new job, fail if conflicting jobs are\n"
3901 " --ignore-dependencies\n"
3902 " When queueing a new job, ignore all its dependencies\n"
3903 " --kill-who=WHO Who to send signal to\n"
3904 " -s --signal=SIGNAL Which signal to send\n"
3905 " -H --host=[USER@]HOST\n"
3906 " Show information for remote host\n"
3907 " -P --privileged Acquire privileges before execution\n"
3908 " -q --quiet Suppress output\n"
3909 " --no-block Do not wait until operation finished\n"
3910 " --no-wall Don't send wall message before halt/power-off/reboot\n"
3911 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
3913 " --no-legend Do not print a legend (column headers and hints)\n"
3914 " --no-pager Do not pipe output into a pager\n"
3915 " --no-ask-password\n"
3916 " Do not ask for system passwords\n"
3917 " --order When generating graph for dot, show only order\n"
3918 " --require When generating graph for dot, show only requirement\n"
3919 " --system Connect to system manager\n"
3920 " --user Connect to user service manager\n"
3921 " --global Enable/disable unit files globally\n"
3922 " -f --force When enabling unit files, override existing symlinks\n"
3923 " When shutting down, execute action immediately\n"
3924 " --root=PATH Enable unit files in the specified root directory\n"
3925 " --runtime Enable unit files only temporarily until next reboot\n"
3926 " -n --lines=INTEGER Journal entries to show\n"
3927 " -o --output=STRING Change journal output mode (short, short-monotonic,\n"
3928 " verbose, export, json, json-pretty, json-sse, cat)\n\n"
3930 " list-units List loaded units\n"
3931 " start [NAME...] Start (activate) one or more units\n"
3932 " stop [NAME...] Stop (deactivate) one or more units\n"
3933 " reload [NAME...] Reload one or more units\n"
3934 " restart [NAME...] Start or restart one or more units\n"
3935 " try-restart [NAME...] Restart one or more units if active\n"
3936 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
3937 " otherwise start or restart\n"
3938 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
3939 " otherwise restart if active\n"
3940 " isolate [NAME] Start one unit and stop all others\n"
3941 " kill [NAME...] Send signal to processes of a unit\n"
3942 " is-active [NAME...] Check whether units are active\n"
3943 " status [NAME...|PID...] Show runtime status of one or more units\n"
3944 " show [NAME...|JOB...] Show properties of one or more\n"
3945 " units/jobs or the manager\n"
3946 " help [NAME...|PID...] Show manual for one or more units\n"
3947 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
3949 " load [NAME...] Load one or more units\n\n"
3950 "Unit File Commands:\n"
3951 " list-unit-files List installed unit files\n"
3952 " enable [NAME...] Enable one or more unit files\n"
3953 " disable [NAME...] Disable one or more unit files\n"
3954 " reenable [NAME...] Reenable one or more unit files\n"
3955 " preset [NAME...] Enable/disable one or more unit files\n"
3956 " based on preset configuration\n"
3957 " mask [NAME...] Mask one or more units\n"
3958 " unmask [NAME...] Unmask one or more units\n"
3959 " link [PATH...] Link one or more units files into\n"
3960 " the search path\n"
3961 " is-enabled [NAME...] Check whether unit files are enabled\n\n"
3963 " list-jobs List jobs\n"
3964 " cancel [JOB...] Cancel all, one, or more jobs\n\n"
3965 "Status Commands:\n"
3966 " dump Dump server status\n"
3967 " dot Dump dependency graph for dot(1)\n\n"
3968 "Snapshot Commands:\n"
3969 " snapshot [NAME] Create a snapshot\n"
3970 " delete [NAME...] Remove one or more snapshots\n\n"
3971 "Environment Commands:\n"
3972 " show-environment Dump environment\n"
3973 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
3974 " unset-environment [NAME...] Unset one or more environment variables\n\n"
3975 "Manager Lifecycle Commands:\n"
3976 " daemon-reload Reload systemd manager configuration\n"
3977 " daemon-reexec Reexecute systemd manager\n\n"
3978 "System Commands:\n"
3979 " default Enter system default mode\n"
3980 " rescue Enter system rescue mode\n"
3981 " emergency Enter system emergency mode\n"
3982 " halt Shut down and halt the system\n"
3983 " poweroff Shut down and power-off the system\n"
3984 " reboot Shut down and reboot the system\n"
3985 " kexec Shut down and reboot the system with kexec\n"
3986 " exit Request user instance exit\n"
3987 " switch-root [ROOT] [INIT] Change to a different root file system\n"
3988 " suspend Suspend the system\n"
3989 " hibernate Hibernate the system\n"
3990 " hybrid-sleep Hibernate and suspend the system\n",
3991 program_invocation_short_name);
3996 static int halt_help(void) {
3998 printf("%s [OPTIONS...]\n\n"
3999 "%s the system.\n\n"
4000 " --help Show this help\n"
4001 " --halt Halt the machine\n"
4002 " -p --poweroff Switch off the machine\n"
4003 " --reboot Reboot the machine\n"
4004 " -f --force Force immediate halt/power-off/reboot\n"
4005 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
4006 " -d --no-wtmp Don't write wtmp record\n"
4007 " --no-wall Don't send wall message before halt/power-off/reboot\n",
4008 program_invocation_short_name,
4009 arg_action == ACTION_REBOOT ? "Reboot" :
4010 arg_action == ACTION_POWEROFF ? "Power off" :
4016 static int shutdown_help(void) {
4018 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
4019 "Shut down the system.\n\n"
4020 " --help Show this help\n"
4021 " -H --halt Halt the machine\n"
4022 " -P --poweroff Power-off the machine\n"
4023 " -r --reboot Reboot the machine\n"
4024 " -h Equivalent to --poweroff, overridden by --halt\n"
4025 " -k Don't halt/power-off/reboot, just send warnings\n"
4026 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4027 " -c Cancel a pending shutdown\n",
4028 program_invocation_short_name);
4033 static int telinit_help(void) {
4035 printf("%s [OPTIONS...] {COMMAND}\n\n"
4036 "Send control commands to the init daemon.\n\n"
4037 " --help Show this help\n"
4038 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
4040 " 0 Power-off the machine\n"
4041 " 6 Reboot the machine\n"
4042 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4043 " 1, s, S Enter rescue mode\n"
4044 " q, Q Reload init daemon configuration\n"
4045 " u, U Reexecute init daemon\n",
4046 program_invocation_short_name);
4051 static int runlevel_help(void) {
4053 printf("%s [OPTIONS...]\n\n"
4054 "Prints the previous and current runlevel of the init system.\n\n"
4055 " --help Show this help\n",
4056 program_invocation_short_name);
4061 static int help_types(void) {
4064 puts("Available unit types:");
4065 for(i = UNIT_SERVICE; i < _UNIT_TYPE_MAX; i++)
4066 if (unit_type_table[i])
4067 puts(unit_type_table[i]);
4069 puts("\nAvailable unit load states: ");
4070 for(i = UNIT_STUB; i < _UNIT_LOAD_STATE_MAX; i++)
4071 if (unit_type_table[i])
4072 puts(unit_load_state_table[i]);
4077 static int systemctl_parse_argv(int argc, char *argv[]) {
4081 ARG_IGNORE_DEPENDENCIES,
4096 ARG_NO_ASK_PASSWORD,
4102 static const struct option options[] = {
4103 { "help", no_argument, NULL, 'h' },
4104 { "version", no_argument, NULL, ARG_VERSION },
4105 { "type", required_argument, NULL, 't' },
4106 { "property", required_argument, NULL, 'p' },
4107 { "all", no_argument, NULL, 'a' },
4108 { "failed", no_argument, NULL, ARG_FAILED },
4109 { "full", no_argument, NULL, ARG_FULL },
4110 { "fail", no_argument, NULL, ARG_FAIL },
4111 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES },
4112 { "user", no_argument, NULL, ARG_USER },
4113 { "system", no_argument, NULL, ARG_SYSTEM },
4114 { "global", no_argument, NULL, ARG_GLOBAL },
4115 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4116 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
4117 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
4118 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4119 { "quiet", no_argument, NULL, 'q' },
4120 { "order", no_argument, NULL, ARG_ORDER },
4121 { "require", no_argument, NULL, ARG_REQUIRE },
4122 { "root", required_argument, NULL, ARG_ROOT },
4123 { "force", no_argument, NULL, ARG_FORCE },
4124 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
4125 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4126 { "signal", required_argument, NULL, 's' },
4127 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
4128 { "host", required_argument, NULL, 'H' },
4129 { "privileged",no_argument, NULL, 'P' },
4130 { "runtime", no_argument, NULL, ARG_RUNTIME },
4131 { "lines", required_argument, NULL, 'n' },
4132 { "output", required_argument, NULL, 'o' },
4133 { NULL, 0, NULL, 0 }
4141 while ((c = getopt_long(argc, argv, "ht:p:aqfs:H:Pn:o:", options, NULL)) >= 0) {
4150 puts(PACKAGE_STRING);
4152 puts(SYSTEMD_FEATURES);
4156 if (streq(optarg, "help")) {
4161 if (unit_type_from_string(optarg) >= 0) {
4165 if (unit_load_state_from_string(optarg) >= 0) {
4166 arg_load_state = optarg;
4169 log_error("Unkown unit type or load state '%s'.",
4171 log_info("Use -t help to see a list of allowed values.");
4176 if (!(l = strv_append(arg_property, optarg)))
4179 strv_free(arg_property);
4182 /* If the user asked for a particular
4183 * property, show it to him, even if it is
4194 arg_job_mode = "fail";
4197 case ARG_IGNORE_DEPENDENCIES:
4198 arg_job_mode = "ignore-dependencies";
4202 arg_scope = UNIT_FILE_USER;
4206 arg_scope = UNIT_FILE_SYSTEM;
4210 arg_scope = UNIT_FILE_GLOBAL;
4214 arg_no_block = true;
4218 arg_no_legend = true;
4222 arg_no_pager = true;
4230 arg_dot = DOT_ORDER;
4234 arg_dot = DOT_REQUIRE;
4262 arg_no_reload = true;
4266 arg_kill_who = optarg;
4270 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
4271 log_error("Failed to parse signal string %s.", optarg);
4276 case ARG_NO_ASK_PASSWORD:
4277 arg_ask_password = false;
4281 arg_transport = TRANSPORT_POLKIT;
4285 arg_transport = TRANSPORT_SSH;
4294 if (safe_atou(optarg, &arg_lines) < 0) {
4295 log_error("Failed to parse lines '%s'", optarg);
4301 arg_output = output_mode_from_string(optarg);
4302 if (arg_output < 0) {
4303 log_error("Unknown output '%s'.", optarg);
4312 log_error("Unknown option code '%c'.", c);
4317 if (arg_transport != TRANSPORT_NORMAL && arg_scope != UNIT_FILE_SYSTEM) {
4318 log_error("Cannot access user instance remotely.");
4325 static int halt_parse_argv(int argc, char *argv[]) {
4334 static const struct option options[] = {
4335 { "help", no_argument, NULL, ARG_HELP },
4336 { "halt", no_argument, NULL, ARG_HALT },
4337 { "poweroff", no_argument, NULL, 'p' },
4338 { "reboot", no_argument, NULL, ARG_REBOOT },
4339 { "force", no_argument, NULL, 'f' },
4340 { "wtmp-only", no_argument, NULL, 'w' },
4341 { "no-wtmp", no_argument, NULL, 'd' },
4342 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4343 { NULL, 0, NULL, 0 }
4351 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4352 if (runlevel == '0' || runlevel == '6')
4355 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4363 arg_action = ACTION_HALT;
4367 if (arg_action != ACTION_REBOOT)
4368 arg_action = ACTION_POWEROFF;
4372 arg_action = ACTION_REBOOT;
4394 /* Compatibility nops */
4401 log_error("Unknown option code '%c'.", c);
4406 if (optind < argc) {
4407 log_error("Too many arguments.");
4414 static int parse_time_spec(const char *t, usec_t *_u) {
4418 if (streq(t, "now"))
4420 else if (!strchr(t, ':')) {
4423 if (safe_atou64(t, &u) < 0)
4426 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4435 hour = strtol(t, &e, 10);
4436 if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
4439 minute = strtol(e+1, &e, 10);
4440 if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
4443 n = now(CLOCK_REALTIME);
4444 s = (time_t) (n / USEC_PER_SEC);
4447 assert_se(localtime_r(&s, &tm));
4449 tm.tm_hour = (int) hour;
4450 tm.tm_min = (int) minute;
4453 assert_se(s = mktime(&tm));
4455 *_u = (usec_t) s * USEC_PER_SEC;
4458 *_u += USEC_PER_DAY;
4464 static int shutdown_parse_argv(int argc, char *argv[]) {
4471 static const struct option options[] = {
4472 { "help", no_argument, NULL, ARG_HELP },
4473 { "halt", no_argument, NULL, 'H' },
4474 { "poweroff", no_argument, NULL, 'P' },
4475 { "reboot", no_argument, NULL, 'r' },
4476 { "kexec", no_argument, NULL, 'K' }, /* not documented extension */
4477 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4478 { NULL, 0, NULL, 0 }
4486 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
4494 arg_action = ACTION_HALT;
4498 arg_action = ACTION_POWEROFF;
4503 arg_action = ACTION_KEXEC;
4505 arg_action = ACTION_REBOOT;
4509 arg_action = ACTION_KEXEC;
4513 if (arg_action != ACTION_HALT)
4514 arg_action = ACTION_POWEROFF;
4527 /* Compatibility nops */
4531 arg_action = ACTION_CANCEL_SHUTDOWN;
4538 log_error("Unknown option code '%c'.", c);
4543 if (argc > optind && arg_action != ACTION_CANCEL_SHUTDOWN) {
4544 r = parse_time_spec(argv[optind], &arg_when);
4546 log_error("Failed to parse time specification: %s", argv[optind]);
4550 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
4552 if (argc > optind && arg_action == ACTION_CANCEL_SHUTDOWN)
4553 /* No time argument for shutdown cancel */
4554 arg_wall = argv + optind;
4555 else if (argc > optind + 1)
4556 /* We skip the time argument */
4557 arg_wall = argv + optind + 1;
4564 static int telinit_parse_argv(int argc, char *argv[]) {
4571 static const struct option options[] = {
4572 { "help", no_argument, NULL, ARG_HELP },
4573 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4574 { NULL, 0, NULL, 0 }
4577 static const struct {
4581 { '0', ACTION_POWEROFF },
4582 { '6', ACTION_REBOOT },
4583 { '1', ACTION_RESCUE },
4584 { '2', ACTION_RUNLEVEL2 },
4585 { '3', ACTION_RUNLEVEL3 },
4586 { '4', ACTION_RUNLEVEL4 },
4587 { '5', ACTION_RUNLEVEL5 },
4588 { 's', ACTION_RESCUE },
4589 { 'S', ACTION_RESCUE },
4590 { 'q', ACTION_RELOAD },
4591 { 'Q', ACTION_RELOAD },
4592 { 'u', ACTION_REEXEC },
4593 { 'U', ACTION_REEXEC }
4602 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4617 log_error("Unknown option code '%c'.", c);
4622 if (optind >= argc) {
4627 if (optind + 1 < argc) {
4628 log_error("Too many arguments.");
4632 if (strlen(argv[optind]) != 1) {
4633 log_error("Expected single character argument.");
4637 for (i = 0; i < ELEMENTSOF(table); i++)
4638 if (table[i].from == argv[optind][0])
4641 if (i >= ELEMENTSOF(table)) {
4642 log_error("Unknown command '%s'.", argv[optind]);
4646 arg_action = table[i].to;
4653 static int runlevel_parse_argv(int argc, char *argv[]) {
4659 static const struct option options[] = {
4660 { "help", no_argument, NULL, ARG_HELP },
4661 { NULL, 0, NULL, 0 }
4669 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4680 log_error("Unknown option code '%c'.", c);
4685 if (optind < argc) {
4686 log_error("Too many arguments.");
4693 static int parse_argv(int argc, char *argv[]) {
4697 if (program_invocation_short_name) {
4699 if (strstr(program_invocation_short_name, "halt")) {
4700 arg_action = ACTION_HALT;
4701 return halt_parse_argv(argc, argv);
4702 } else if (strstr(program_invocation_short_name, "poweroff")) {
4703 arg_action = ACTION_POWEROFF;
4704 return halt_parse_argv(argc, argv);
4705 } else if (strstr(program_invocation_short_name, "reboot")) {
4707 arg_action = ACTION_KEXEC;
4709 arg_action = ACTION_REBOOT;
4710 return halt_parse_argv(argc, argv);
4711 } else if (strstr(program_invocation_short_name, "shutdown")) {
4712 arg_action = ACTION_POWEROFF;
4713 return shutdown_parse_argv(argc, argv);
4714 } else if (strstr(program_invocation_short_name, "init")) {
4716 if (sd_booted() > 0) {
4717 arg_action = ACTION_INVALID;
4718 return telinit_parse_argv(argc, argv);
4720 /* Hmm, so some other init system is
4721 * running, we need to forward this
4722 * request to it. For now we simply
4723 * guess that it is Upstart. */
4725 execv("/lib/upstart/telinit", argv);
4727 log_error("Couldn't find an alternative telinit implementation to spawn.");
4731 } else if (strstr(program_invocation_short_name, "runlevel")) {
4732 arg_action = ACTION_RUNLEVEL;
4733 return runlevel_parse_argv(argc, argv);
4737 arg_action = ACTION_SYSTEMCTL;
4738 return systemctl_parse_argv(argc, argv);
4741 static int action_to_runlevel(void) {
4743 static const char table[_ACTION_MAX] = {
4744 [ACTION_HALT] = '0',
4745 [ACTION_POWEROFF] = '0',
4746 [ACTION_REBOOT] = '6',
4747 [ACTION_RUNLEVEL2] = '2',
4748 [ACTION_RUNLEVEL3] = '3',
4749 [ACTION_RUNLEVEL4] = '4',
4750 [ACTION_RUNLEVEL5] = '5',
4751 [ACTION_RESCUE] = '1'
4754 assert(arg_action < _ACTION_MAX);
4756 return table[arg_action];
4759 static int talk_upstart(void) {
4760 DBusMessage *m = NULL, *reply = NULL;
4762 int previous, rl, r;
4764 env1_buf[] = "RUNLEVEL=X",
4765 env2_buf[] = "PREVLEVEL=X";
4766 char *env1 = env1_buf, *env2 = env2_buf;
4767 const char *emit = "runlevel";
4768 dbus_bool_t b_false = FALSE;
4769 DBusMessageIter iter, sub;
4770 DBusConnection *bus;
4772 dbus_error_init(&error);
4774 if (!(rl = action_to_runlevel()))
4777 if (utmp_get_runlevel(&previous, NULL) < 0)
4780 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
4781 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
4786 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
4791 if ((r = bus_check_peercred(bus)) < 0) {
4792 log_error("Failed to verify owner of bus.");
4796 if (!(m = dbus_message_new_method_call(
4797 "com.ubuntu.Upstart",
4798 "/com/ubuntu/Upstart",
4799 "com.ubuntu.Upstart0_6",
4802 log_error("Could not allocate message.");
4807 dbus_message_iter_init_append(m, &iter);
4809 env1_buf[sizeof(env1_buf)-2] = rl;
4810 env2_buf[sizeof(env2_buf)-2] = previous;
4812 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
4813 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
4814 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
4815 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
4816 !dbus_message_iter_close_container(&iter, &sub) ||
4817 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
4818 log_error("Could not append arguments to message.");
4823 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4825 if (bus_error_is_no_service(&error)) {
4830 log_error("Failed to issue method call: %s", bus_error_message(&error));
4839 dbus_message_unref(m);
4842 dbus_message_unref(reply);
4845 dbus_connection_flush(bus);
4846 dbus_connection_close(bus);
4847 dbus_connection_unref(bus);
4850 dbus_error_free(&error);
4855 static int talk_initctl(void) {
4856 struct init_request request;
4860 if (!(rl = action_to_runlevel()))
4864 request.magic = INIT_MAGIC;
4865 request.sleeptime = 0;
4866 request.cmd = INIT_CMD_RUNLVL;
4867 request.runlevel = rl;
4869 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
4871 if (errno == ENOENT)
4874 log_error("Failed to open "INIT_FIFO": %m");
4879 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
4880 close_nointr_nofail(fd);
4883 log_error("Failed to write to "INIT_FIFO": %m");
4884 return errno ? -errno : -EIO;
4890 static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
4892 static const struct {
4900 int (* const dispatch)(DBusConnection *bus, char **args);
4902 { "list-units", LESS, 1, list_units },
4903 { "list-unit-files", EQUAL, 1, list_unit_files },
4904 { "list-jobs", EQUAL, 1, list_jobs },
4905 { "clear-jobs", EQUAL, 1, daemon_reload },
4906 { "load", MORE, 2, load_unit },
4907 { "cancel", MORE, 2, cancel_job },
4908 { "start", MORE, 2, start_unit },
4909 { "stop", MORE, 2, start_unit },
4910 { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
4911 { "reload", MORE, 2, start_unit },
4912 { "restart", MORE, 2, start_unit },
4913 { "try-restart", MORE, 2, start_unit },
4914 { "reload-or-restart", MORE, 2, start_unit },
4915 { "reload-or-try-restart", MORE, 2, start_unit },
4916 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
4917 { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
4918 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
4919 { "isolate", EQUAL, 2, start_unit },
4920 { "kill", MORE, 2, kill_unit },
4921 { "is-active", MORE, 2, check_unit },
4922 { "check", MORE, 2, check_unit },
4923 { "show", MORE, 1, show },
4924 { "status", MORE, 2, show },
4925 { "help", MORE, 2, show },
4926 { "dump", EQUAL, 1, dump },
4927 { "dot", EQUAL, 1, dot },
4928 { "snapshot", LESS, 2, snapshot },
4929 { "delete", MORE, 2, delete_snapshot },
4930 { "daemon-reload", EQUAL, 1, daemon_reload },
4931 { "daemon-reexec", EQUAL, 1, daemon_reload },
4932 { "show-environment", EQUAL, 1, show_enviroment },
4933 { "set-environment", MORE, 2, set_environment },
4934 { "unset-environment", MORE, 2, set_environment },
4935 { "halt", EQUAL, 1, start_special },
4936 { "poweroff", EQUAL, 1, start_special },
4937 { "reboot", EQUAL, 1, start_special },
4938 { "kexec", EQUAL, 1, start_special },
4939 { "suspend", EQUAL, 1, start_special },
4940 { "hibernate", EQUAL, 1, start_special },
4941 { "hybrid-sleep", EQUAL, 1, start_special },
4942 { "default", EQUAL, 1, start_special },
4943 { "rescue", EQUAL, 1, start_special },
4944 { "emergency", EQUAL, 1, start_special },
4945 { "exit", EQUAL, 1, start_special },
4946 { "reset-failed", MORE, 1, reset_failed },
4947 { "enable", MORE, 2, enable_unit },
4948 { "disable", MORE, 2, enable_unit },
4949 { "is-enabled", MORE, 2, unit_is_enabled },
4950 { "reenable", MORE, 2, enable_unit },
4951 { "preset", MORE, 2, enable_unit },
4952 { "mask", MORE, 2, enable_unit },
4953 { "unmask", MORE, 2, enable_unit },
4954 { "link", MORE, 2, enable_unit },
4955 { "switch-root", MORE, 2, switch_root },
4965 left = argc - optind;
4968 /* Special rule: no arguments means "list-units" */
4971 if (streq(argv[optind], "help") && !argv[optind+1]) {
4972 log_error("This command expects one or more "
4973 "unit names. Did you mean --help?");
4977 for (i = 0; i < ELEMENTSOF(verbs); i++)
4978 if (streq(argv[optind], verbs[i].verb))
4981 if (i >= ELEMENTSOF(verbs)) {
4982 log_error("Unknown operation '%s'.", argv[optind]);
4987 switch (verbs[i].argc_cmp) {
4990 if (left != verbs[i].argc) {
4991 log_error("Invalid number of arguments.");
4998 if (left < verbs[i].argc) {
4999 log_error("Too few arguments.");
5006 if (left > verbs[i].argc) {
5007 log_error("Too many arguments.");
5014 assert_not_reached("Unknown comparison operator.");
5017 /* Require a bus connection for all operations but
5019 if (!streq(verbs[i].verb, "enable") &&
5020 !streq(verbs[i].verb, "disable") &&
5021 !streq(verbs[i].verb, "is-enabled") &&
5022 !streq(verbs[i].verb, "list-unit-files") &&
5023 !streq(verbs[i].verb, "reenable") &&
5024 !streq(verbs[i].verb, "preset") &&
5025 !streq(verbs[i].verb, "mask") &&
5026 !streq(verbs[i].verb, "unmask") &&
5027 !streq(verbs[i].verb, "link")) {
5029 if (running_in_chroot() > 0) {
5030 log_info("Running in chroot, ignoring request.");
5034 if (((!streq(verbs[i].verb, "reboot") &&
5035 !streq(verbs[i].verb, "halt") &&
5036 !streq(verbs[i].verb, "poweroff")) || arg_force <= 0) && !bus) {
5037 log_error("Failed to get D-Bus connection: %s",
5038 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5044 if (!bus && !avoid_bus()) {
5045 log_error("Failed to get D-Bus connection: %s",
5046 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5051 return verbs[i].dispatch(bus, argv + optind);
5054 static int send_shutdownd(usec_t t, char mode, bool dry_run, bool warn, const char *message) {
5056 struct msghdr msghdr;
5057 struct iovec iovec[2];
5058 union sockaddr_union sockaddr;
5059 struct sd_shutdown_command c;
5061 fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
5068 c.dry_run = dry_run;
5072 sockaddr.sa.sa_family = AF_UNIX;
5073 strncpy(sockaddr.un.sun_path, "/run/systemd/shutdownd", sizeof(sockaddr.un.sun_path));
5076 msghdr.msg_name = &sockaddr;
5077 msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + sizeof("/run/systemd/shutdownd") - 1;
5080 iovec[0].iov_base = (char*) &c;
5081 iovec[0].iov_len = offsetof(struct sd_shutdown_command, wall_message);
5083 if (isempty(message))
5084 msghdr.msg_iovlen = 1;
5086 iovec[1].iov_base = (char*) message;
5087 iovec[1].iov_len = strlen(message);
5088 msghdr.msg_iovlen = 2;
5090 msghdr.msg_iov = iovec;
5092 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
5093 close_nointr_nofail(fd);
5097 close_nointr_nofail(fd);
5101 static int reload_with_fallback(DBusConnection *bus) {
5104 /* First, try systemd via D-Bus. */
5105 if (daemon_reload(bus, NULL) >= 0)
5109 /* Nothing else worked, so let's try signals */
5110 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5112 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5113 log_error("kill() failed: %m");
5120 static int start_with_fallback(DBusConnection *bus) {
5123 /* First, try systemd via D-Bus. */
5124 if (start_unit(bus, NULL) >= 0)
5128 /* Hmm, talking to systemd via D-Bus didn't work. Then
5129 * let's try to talk to Upstart via D-Bus. */
5130 if (talk_upstart() > 0)
5133 /* Nothing else worked, so let's try
5135 if (talk_initctl() > 0)
5138 log_error("Failed to talk to init daemon.");
5142 warn_wall(arg_action);
5146 static _noreturn_ void halt_now(enum action a) {
5148 /* Make sure C-A-D is handled by the kernel from this
5150 reboot(RB_ENABLE_CAD);
5155 log_info("Halting.");
5156 reboot(RB_HALT_SYSTEM);
5159 case ACTION_POWEROFF:
5160 log_info("Powering off.");
5161 reboot(RB_POWER_OFF);
5165 log_info("Rebooting.");
5166 reboot(RB_AUTOBOOT);
5170 assert_not_reached("Unknown halt action.");
5173 assert_not_reached("Uh? This shouldn't happen.");
5176 static int halt_main(DBusConnection *bus) {
5179 if (geteuid() != 0) {
5180 /* Try logind if we are a normal user and no special
5181 * mode applies. Maybe PolicyKit allows us to shutdown
5184 if (arg_when <= 0 &&
5187 (arg_action == ACTION_POWEROFF ||
5188 arg_action == ACTION_REBOOT)) {
5189 r = reboot_with_logind(bus, arg_action);
5194 log_error("Must be root.");
5201 m = strv_join(arg_wall, " ");
5202 r = send_shutdownd(arg_when,
5203 arg_action == ACTION_HALT ? 'H' :
5204 arg_action == ACTION_POWEROFF ? 'P' :
5205 arg_action == ACTION_KEXEC ? 'K' :
5213 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
5215 char date[FORMAT_TIMESTAMP_MAX];
5217 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
5218 format_timestamp(date, sizeof(date), arg_when));
5223 if (!arg_dry && !arg_force)
5224 return start_with_fallback(bus);
5227 if (sd_booted() > 0)
5228 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
5230 r = utmp_put_shutdown();
5232 log_warning("Failed to write utmp record: %s", strerror(-r));
5239 halt_now(arg_action);
5240 /* We should never reach this. */
5244 static int runlevel_main(void) {
5245 int r, runlevel, previous;
5247 r = utmp_get_runlevel(&runlevel, &previous);
5254 previous <= 0 ? 'N' : previous,
5255 runlevel <= 0 ? 'N' : runlevel);
5260 int main(int argc, char*argv[]) {
5261 int r, retval = EXIT_FAILURE;
5262 DBusConnection *bus = NULL;
5265 dbus_error_init(&error);
5267 setlocale(LC_ALL, "");
5268 log_parse_environment();
5271 r = parse_argv(argc, argv);
5275 retval = EXIT_SUCCESS;
5279 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5280 * let's shortcut this */
5281 if (arg_action == ACTION_RUNLEVEL) {
5282 r = runlevel_main();
5283 retval = r < 0 ? EXIT_FAILURE : r;
5287 if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
5288 log_info("Running in chroot, ignoring request.");
5294 if (arg_transport == TRANSPORT_NORMAL)
5295 bus_connect(arg_scope == UNIT_FILE_SYSTEM ? DBUS_BUS_SYSTEM : DBUS_BUS_SESSION, &bus, &private_bus, &error);
5296 else if (arg_transport == TRANSPORT_POLKIT) {
5297 bus_connect_system_polkit(&bus, &error);
5298 private_bus = false;
5299 } else if (arg_transport == TRANSPORT_SSH) {
5300 bus_connect_system_ssh(NULL, arg_host, &bus, &error);
5301 private_bus = false;
5303 assert_not_reached("Uh, invalid transport...");
5306 switch (arg_action) {
5308 case ACTION_SYSTEMCTL:
5309 r = systemctl_main(bus, argc, argv, &error);
5313 case ACTION_POWEROFF:
5319 case ACTION_RUNLEVEL2:
5320 case ACTION_RUNLEVEL3:
5321 case ACTION_RUNLEVEL4:
5322 case ACTION_RUNLEVEL5:
5324 case ACTION_EMERGENCY:
5325 case ACTION_DEFAULT:
5326 r = start_with_fallback(bus);
5331 r = reload_with_fallback(bus);
5334 case ACTION_CANCEL_SHUTDOWN: {
5338 m = strv_join(arg_wall, " ");
5340 retval = EXIT_FAILURE;
5344 r = send_shutdownd(arg_when, SD_SHUTDOWN_NONE, false, !arg_no_wall, m);
5346 log_warning("Failed to talk to shutdownd, shutdown hasn't been cancelled: %s", strerror(-r));
5351 case ACTION_INVALID:
5352 case ACTION_RUNLEVEL:
5354 assert_not_reached("Unknown action");
5357 retval = r < 0 ? EXIT_FAILURE : r;
5361 dbus_connection_flush(bus);
5362 dbus_connection_close(bus);
5363 dbus_connection_unref(bus);
5366 dbus_error_free(&error);
5370 strv_free(arg_property);
5373 ask_password_agent_close();
5374 polkit_agent_close();