1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
22 #include <sys/reboot.h>
28 #include <sys/ioctl.h>
32 #include <sys/socket.h>
35 #include <sys/prctl.h>
36 #include <dbus/dbus.h>
38 #include <systemd/sd-daemon.h>
39 #include <systemd/sd-shutdown.h>
45 #include "utmp-wtmp.h"
48 #include "path-util.h"
50 #include "dbus-common.h"
51 #include "cgroup-show.h"
52 #include "cgroup-util.h"
54 #include "path-lookup.h"
55 #include "conf-parser.h"
56 #include "exit-status.h"
57 #include "bus-errors.h"
59 #include "unit-name.h"
61 #include "spawn-ask-password-agent.h"
62 #include "spawn-polkit-agent.h"
64 #include "logs-show.h"
65 #include "path-util.h"
67 static const char *arg_type = NULL;
68 static const char *arg_load_state = NULL;
69 static char **arg_property = NULL;
70 static bool arg_all = false;
71 static const char *arg_job_mode = "replace";
72 static UnitFileScope arg_scope = UNIT_FILE_SYSTEM;
73 static bool arg_no_block = false;
74 static bool arg_no_legend = false;
75 static bool arg_no_pager = false;
76 static bool arg_no_wtmp = false;
77 static bool arg_no_sync = false;
78 static bool arg_no_wall = false;
79 static bool arg_no_reload = false;
80 static bool arg_dry = false;
81 static bool arg_quiet = false;
82 static bool arg_full = false;
83 static int arg_force = 0;
84 static bool arg_ask_password = true;
85 static bool arg_failed = false;
86 static bool arg_runtime = false;
87 static char **arg_wall = NULL;
88 static const char *arg_kill_who = NULL;
89 static int arg_signal = SIGTERM;
90 static const char *arg_root = NULL;
91 static usec_t arg_when = 0;
112 ACTION_CANCEL_SHUTDOWN,
114 } arg_action = ACTION_SYSTEMCTL;
120 static enum transport {
124 } arg_transport = TRANSPORT_NORMAL;
125 static const char *arg_host = NULL;
126 static bool arg_follow = false;
127 static unsigned arg_lines = 10;
128 static OutputMode arg_output = OUTPUT_SHORT;
130 static bool private_bus = false;
132 static int daemon_reload(DBusConnection *bus, char **args);
133 static void halt_now(enum action a);
135 static bool on_tty(void) {
138 /* Note that this is invoked relatively early, before we start
139 * the pager. That means the value we return reflects whether
140 * we originally were started on a tty, not if we currently
141 * are. But this is intended, since we want colour and so on
142 * when run in our own pager. */
144 if (_unlikely_(t < 0))
145 t = isatty(STDOUT_FILENO) > 0;
150 static void pager_open_if_enabled(void) {
152 /* Cache result before we open the pager */
161 static void ask_password_agent_open_if_enabled(void) {
163 /* Open the password agent as a child process if necessary */
165 if (!arg_ask_password)
168 if (arg_scope != UNIT_FILE_SYSTEM)
171 ask_password_agent_open();
175 static void polkit_agent_open_if_enabled(void) {
177 /* Open the polkit agent as a child process if necessary */
179 if (!arg_ask_password)
182 if (arg_scope != UNIT_FILE_SYSTEM)
189 static const char *ansi_highlight_red(bool b) {
194 return b ? ANSI_HIGHLIGHT_RED_ON : ANSI_HIGHLIGHT_OFF;
197 static const char *ansi_highlight_green(bool b) {
202 return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF;
205 static bool error_is_no_service(const DBusError *error) {
208 if (!dbus_error_is_set(error))
211 if (dbus_error_has_name(error, DBUS_ERROR_NAME_HAS_NO_OWNER))
214 if (dbus_error_has_name(error, DBUS_ERROR_SERVICE_UNKNOWN))
217 return startswith(error->name, "org.freedesktop.DBus.Error.Spawn.");
220 static int translate_bus_error_to_exit_status(int r, const DBusError *error) {
223 if (!dbus_error_is_set(error))
226 if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) ||
227 dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
228 dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
229 dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
230 return EXIT_NOPERMISSION;
232 if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
233 return EXIT_NOTINSTALLED;
235 if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
236 dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED))
237 return EXIT_NOTIMPLEMENTED;
239 if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
240 return EXIT_NOTCONFIGURED;
248 static void warn_wall(enum action a) {
249 static const char *table[_ACTION_MAX] = {
250 [ACTION_HALT] = "The system is going down for system halt NOW!",
251 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
252 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
253 [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!",
254 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
255 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!"
264 p = strv_join(arg_wall, " ");
266 log_error("Failed to join strings.");
282 utmp_wall(table[a], NULL);
285 static bool avoid_bus(void) {
287 if (running_in_chroot() > 0)
290 if (sd_booted() <= 0)
293 if (!isempty(arg_root))
296 if (arg_scope == UNIT_FILE_GLOBAL)
304 const char *description;
305 const char *load_state;
306 const char *active_state;
307 const char *sub_state;
308 const char *following;
309 const char *unit_path;
311 const char *job_type;
312 const char *job_path;
315 static int compare_unit_info(const void *a, const void *b) {
317 const struct unit_info *u = a, *v = b;
319 d1 = strrchr(u->id, '.');
320 d2 = strrchr(v->id, '.');
325 if ((r = strcasecmp(d1, d2)) != 0)
329 return strcasecmp(u->id, v->id);
332 static bool output_show_unit(const struct unit_info *u) {
336 return streq(u->active_state, "failed");
338 return (!arg_type || ((dot = strrchr(u->id, '.')) &&
339 streq(dot+1, arg_type))) &&
340 (!arg_load_state || streq(u->load_state, arg_load_state)) &&
341 (arg_all || !(streq(u->active_state, "inactive")
342 || u->following[0]) || u->job_id > 0);
345 static void output_units_list(const struct unit_info *unit_infos, unsigned c) {
346 unsigned id_len, max_id_len, active_len, sub_len, job_len, desc_len, n_shown = 0;
347 const struct unit_info *u;
349 max_id_len = sizeof("UNIT")-1;
350 active_len = sizeof("ACTIVE")-1;
351 sub_len = sizeof("SUB")-1;
352 job_len = sizeof("JOB")-1;
355 for (u = unit_infos; u < unit_infos + c; u++) {
356 if (!output_show_unit(u))
359 max_id_len = MAX(max_id_len, strlen(u->id));
360 active_len = MAX(active_len, strlen(u->active_state));
361 sub_len = MAX(sub_len, strlen(u->sub_state));
363 job_len = MAX(job_len, strlen(u->job_type));
368 id_len = MIN(max_id_len, 25);
369 basic_len = 5 + id_len + 6 + active_len + sub_len + job_len;
370 if (basic_len < (unsigned) columns()) {
371 unsigned extra_len, incr;
372 extra_len = columns() - basic_len;
373 /* Either UNIT already got 25, or is fully satisfied.
374 * Grant up to 25 to DESC now. */
375 incr = MIN(extra_len, 25);
378 /* split the remaining space between UNIT and DESC,
379 * but do not give UNIT more than it needs. */
381 incr = MIN(extra_len / 2, max_id_len - id_len);
383 desc_len += extra_len - incr;
389 if (!arg_no_legend) {
390 printf("%-*s %-6s %-*s %-*s %-*s ", id_len, "UNIT", "LOAD",
391 active_len, "ACTIVE", sub_len, "SUB", job_len, "JOB");
392 if (!arg_full && arg_no_pager)
393 printf("%.*s\n", desc_len, "DESCRIPTION");
395 printf("%s\n", "DESCRIPTION");
398 for (u = unit_infos; u < unit_infos + c; u++) {
400 const char *on_loaded, *off_loaded;
401 const char *on_active, *off_active;
403 if (!output_show_unit(u))
408 if (streq(u->load_state, "error")) {
409 on_loaded = ansi_highlight_red(true);
410 off_loaded = ansi_highlight_red(false);
412 on_loaded = off_loaded = "";
414 if (streq(u->active_state, "failed")) {
415 on_active = ansi_highlight_red(true);
416 off_active = ansi_highlight_red(false);
418 on_active = off_active = "";
420 e = arg_full ? NULL : ellipsize(u->id, id_len, 33);
422 printf("%-*s %s%-6s%s %s%-*s %-*s%s %-*s ",
423 id_len, e ? e : u->id,
424 on_loaded, u->load_state, off_loaded,
425 on_active, active_len, u->active_state,
426 sub_len, u->sub_state, off_active,
427 job_len, u->job_id ? u->job_type : "");
428 if (!arg_full && arg_no_pager)
429 printf("%.*s\n", desc_len, u->description);
431 printf("%s\n", u->description);
436 if (!arg_no_legend) {
437 printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
438 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
439 "SUB = The low-level unit activation state, values depend on unit type.\n"
440 "JOB = Pending job for the unit.\n");
443 printf("\n%u units listed.\n", n_shown);
445 printf("\n%u units listed. Pass --all to see inactive units, too.\n", n_shown);
449 static int list_units(DBusConnection *bus, char **args) {
450 DBusMessage *m = NULL, *reply = NULL;
453 DBusMessageIter iter, sub, sub2;
454 unsigned c = 0, n_units = 0;
455 struct unit_info *unit_infos = NULL;
457 dbus_error_init(&error);
461 pager_open_if_enabled();
463 if (!(m = dbus_message_new_method_call(
464 "org.freedesktop.systemd1",
465 "/org/freedesktop/systemd1",
466 "org.freedesktop.systemd1.Manager",
468 log_error("Could not allocate message.");
472 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
473 log_error("Failed to issue method call: %s", bus_error_message(&error));
478 if (!dbus_message_iter_init(reply, &iter) ||
479 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
480 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
481 log_error("Failed to parse reply.");
486 dbus_message_iter_recurse(&iter, &sub);
488 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
491 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
492 log_error("Failed to parse reply.");
500 n_units = MAX(2*c, 16);
501 w = realloc(unit_infos, sizeof(struct unit_info) * n_units);
504 log_error("Failed to allocate unit array.");
514 dbus_message_iter_recurse(&sub, &sub2);
516 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->id, true) < 0 ||
517 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->description, true) < 0 ||
518 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->load_state, true) < 0 ||
519 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->active_state, true) < 0 ||
520 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->sub_state, true) < 0 ||
521 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->following, true) < 0 ||
522 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->unit_path, true) < 0 ||
523 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &u->job_id, true) < 0 ||
524 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->job_type, true) < 0 ||
525 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->job_path, false) < 0) {
526 log_error("Failed to parse reply.");
531 dbus_message_iter_next(&sub);
536 qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info);
537 output_units_list(unit_infos, c);
544 dbus_message_unref(m);
547 dbus_message_unref(reply);
551 dbus_error_free(&error);
556 static int compare_unit_file_list(const void *a, const void *b) {
558 const UnitFileList *u = a, *v = b;
560 d1 = strrchr(u->path, '.');
561 d2 = strrchr(v->path, '.');
566 r = strcasecmp(d1, d2);
571 return strcasecmp(path_get_file_name(u->path), path_get_file_name(v->path));
574 static bool output_show_unit_file(const UnitFileList *u) {
577 return !arg_type || ((dot = strrchr(u->path, '.')) && streq(dot+1, arg_type));
580 static void output_unit_file_list(const UnitFileList *units, unsigned c) {
581 unsigned max_id_len, id_cols, state_cols, n_shown = 0;
582 const UnitFileList *u;
584 max_id_len = sizeof("UNIT FILE")-1;
585 state_cols = sizeof("STATE")-1;
586 for (u = units; u < units + c; u++) {
587 if (!output_show_unit_file(u))
590 max_id_len = MAX(max_id_len, strlen(path_get_file_name(u->path)));
591 state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state)));
596 id_cols = MIN(max_id_len, 25);
597 basic_cols = 1 + id_cols + state_cols;
598 if (basic_cols < (unsigned) columns())
599 id_cols += MIN(columns() - basic_cols, max_id_len - id_cols);
601 id_cols = max_id_len;
604 printf("%-*s %-*s\n", id_cols, "UNIT FILE", state_cols, "STATE");
606 for (u = units; u < units + c; u++) {
608 const char *on, *off;
611 if (!output_show_unit_file(u))
616 if (u->state == UNIT_FILE_MASKED ||
617 u->state == UNIT_FILE_MASKED_RUNTIME ||
618 u->state == UNIT_FILE_DISABLED) {
619 on = ansi_highlight_red(true);
620 off = ansi_highlight_red(false);
621 } else if (u->state == UNIT_FILE_ENABLED) {
622 on = ansi_highlight_green(true);
623 off = ansi_highlight_green(false);
627 id = path_get_file_name(u->path);
629 e = arg_full ? NULL : ellipsize(id, id_cols, 33);
631 printf("%-*s %s%-*s%s\n",
633 on, state_cols, unit_file_state_to_string(u->state), off);
639 printf("\n%u unit files listed.\n", n_shown);
642 static int list_unit_files(DBusConnection *bus, char **args) {
643 DBusMessage *m = NULL, *reply = NULL;
646 DBusMessageIter iter, sub, sub2;
647 unsigned c = 0, n_units = 0;
648 UnitFileList *units = NULL;
650 dbus_error_init(&error);
652 pager_open_if_enabled();
659 h = hashmap_new(string_hash_func, string_compare_func);
661 log_error("Out of memory.");
665 r = unit_file_get_list(arg_scope, arg_root, h);
667 unit_file_list_free(h);
668 log_error("Failed to get unit file list: %s", strerror(-r));
672 n_units = hashmap_size(h);
673 units = new(UnitFileList, n_units);
675 unit_file_list_free(h);
676 log_error("Out of memory.");
680 HASHMAP_FOREACH(u, h, i) {
681 memcpy(units + c++, u, sizeof(UnitFileList));
689 m = dbus_message_new_method_call(
690 "org.freedesktop.systemd1",
691 "/org/freedesktop/systemd1",
692 "org.freedesktop.systemd1.Manager",
695 log_error("Could not allocate message.");
699 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
701 log_error("Failed to issue method call: %s", bus_error_message(&error));
706 if (!dbus_message_iter_init(reply, &iter) ||
707 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
708 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
709 log_error("Failed to parse reply.");
714 dbus_message_iter_recurse(&iter, &sub);
716 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
720 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
721 log_error("Failed to parse reply.");
729 n_units = MAX(2*c, 16);
730 w = realloc(units, sizeof(struct UnitFileList) * n_units);
733 log_error("Failed to allocate unit array.");
743 dbus_message_iter_recurse(&sub, &sub2);
745 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->path, true) < 0 ||
746 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, false) < 0) {
747 log_error("Failed to parse reply.");
752 u->state = unit_file_state_from_string(state);
754 dbus_message_iter_next(&sub);
760 qsort(units, c, sizeof(UnitFileList), compare_unit_file_list);
761 output_unit_file_list(units, c);
768 dbus_message_unref(m);
771 dbus_message_unref(reply);
775 dbus_error_free(&error);
780 static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) {
781 static const char * const colors[] = {
782 "Requires", "[color=\"black\"]",
783 "RequiresOverridable", "[color=\"black\"]",
784 "Requisite", "[color=\"darkblue\"]",
785 "RequisiteOverridable", "[color=\"darkblue\"]",
786 "Wants", "[color=\"grey66\"]",
787 "Conflicts", "[color=\"red\"]",
788 "ConflictedBy", "[color=\"red\"]",
789 "After", "[color=\"green\"]"
792 const char *c = NULL;
799 for (i = 0; i < ELEMENTSOF(colors); i += 2)
800 if (streq(colors[i], prop)) {
808 if (arg_dot != DOT_ALL)
809 if ((arg_dot == DOT_ORDER) != streq(prop, "After"))
812 switch (dbus_message_iter_get_arg_type(iter)) {
814 case DBUS_TYPE_ARRAY:
816 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
819 dbus_message_iter_recurse(iter, &sub);
821 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
824 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
825 dbus_message_iter_get_basic(&sub, &s);
826 printf("\t\"%s\"->\"%s\" %s;\n", name, s, c);
828 dbus_message_iter_next(&sub);
838 static int dot_one(DBusConnection *bus, const char *name, const char *path) {
839 DBusMessage *m = NULL, *reply = NULL;
840 const char *interface = "org.freedesktop.systemd1.Unit";
843 DBusMessageIter iter, sub, sub2, sub3;
848 dbus_error_init(&error);
850 if (!(m = dbus_message_new_method_call(
851 "org.freedesktop.systemd1",
853 "org.freedesktop.DBus.Properties",
855 log_error("Could not allocate message.");
860 if (!dbus_message_append_args(m,
861 DBUS_TYPE_STRING, &interface,
862 DBUS_TYPE_INVALID)) {
863 log_error("Could not append arguments to message.");
868 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
869 log_error("Failed to issue method call: %s", bus_error_message(&error));
874 if (!dbus_message_iter_init(reply, &iter) ||
875 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
876 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
877 log_error("Failed to parse reply.");
882 dbus_message_iter_recurse(&iter, &sub);
884 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
887 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
888 log_error("Failed to parse reply.");
893 dbus_message_iter_recurse(&sub, &sub2);
895 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
896 log_error("Failed to parse reply.");
901 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
902 log_error("Failed to parse reply.");
907 dbus_message_iter_recurse(&sub2, &sub3);
909 if (dot_one_property(name, prop, &sub3)) {
910 log_error("Failed to parse reply.");
915 dbus_message_iter_next(&sub);
922 dbus_message_unref(m);
925 dbus_message_unref(reply);
927 dbus_error_free(&error);
932 static int dot(DBusConnection *bus, char **args) {
933 DBusMessage *m = NULL, *reply = NULL;
936 DBusMessageIter iter, sub, sub2;
938 dbus_error_init(&error);
942 if (!(m = dbus_message_new_method_call(
943 "org.freedesktop.systemd1",
944 "/org/freedesktop/systemd1",
945 "org.freedesktop.systemd1.Manager",
947 log_error("Could not allocate message.");
951 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
952 log_error("Failed to issue method call: %s", bus_error_message(&error));
957 if (!dbus_message_iter_init(reply, &iter) ||
958 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
959 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
960 log_error("Failed to parse reply.");
965 printf("digraph systemd {\n");
967 dbus_message_iter_recurse(&iter, &sub);
968 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
969 const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path;
971 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
972 log_error("Failed to parse reply.");
977 dbus_message_iter_recurse(&sub, &sub2);
979 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
980 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
981 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
982 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
983 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
984 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 ||
985 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) {
986 log_error("Failed to parse reply.");
991 if ((r = dot_one(bus, id, unit_path)) < 0)
994 /* printf("\t\"%s\";\n", id); */
995 dbus_message_iter_next(&sub);
1000 log_info(" Color legend: black = Requires\n"
1001 " dark blue = Requisite\n"
1002 " dark grey = Wants\n"
1003 " red = Conflicts\n"
1004 " green = After\n");
1007 log_notice("-- You probably want to process this output with graphviz' dot tool.\n"
1008 "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n");
1014 dbus_message_unref(m);
1017 dbus_message_unref(reply);
1019 dbus_error_free(&error);
1024 static int list_jobs(DBusConnection *bus, char **args) {
1025 DBusMessage *m = NULL, *reply = NULL;
1028 DBusMessageIter iter, sub, sub2;
1031 dbus_error_init(&error);
1035 pager_open_if_enabled();
1037 if (!(m = dbus_message_new_method_call(
1038 "org.freedesktop.systemd1",
1039 "/org/freedesktop/systemd1",
1040 "org.freedesktop.systemd1.Manager",
1042 log_error("Could not allocate message.");
1046 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1047 log_error("Failed to issue method call: %s", bus_error_message(&error));
1052 if (!dbus_message_iter_init(reply, &iter) ||
1053 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
1054 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
1055 log_error("Failed to parse reply.");
1060 dbus_message_iter_recurse(&iter, &sub);
1063 printf("%4s %-25s %-15s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
1065 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1066 const char *name, *type, *state, *job_path, *unit_path;
1070 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
1071 log_error("Failed to parse reply.");
1076 dbus_message_iter_recurse(&sub, &sub2);
1078 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
1079 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
1080 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
1081 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
1082 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
1083 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
1084 log_error("Failed to parse reply.");
1089 e = arg_full ? NULL : ellipsize(name, 25, 33);
1090 printf("%4u %-25s %-15s %-7s\n", id, e ? e : name, type, state);
1095 dbus_message_iter_next(&sub);
1099 printf("\n%u jobs listed.\n", k);
1105 dbus_message_unref(m);
1108 dbus_message_unref(reply);
1110 dbus_error_free(&error);
1115 static int load_unit(DBusConnection *bus, char **args) {
1116 DBusMessage *m = NULL;
1121 dbus_error_init(&error);
1126 STRV_FOREACH(name, args+1) {
1131 if (!(m = dbus_message_new_method_call(
1132 "org.freedesktop.systemd1",
1133 "/org/freedesktop/systemd1",
1134 "org.freedesktop.systemd1.Manager",
1136 log_error("Could not allocate message.");
1141 n = unit_name_mangle(*name);
1142 b = dbus_message_append_args(m,
1143 DBUS_TYPE_STRING, n ? &n : name,
1147 log_error("Could not append arguments to message.");
1152 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
1154 log_error("Failed to issue method call: %s", bus_error_message(&error));
1159 dbus_message_unref(m);
1160 dbus_message_unref(reply);
1169 dbus_message_unref(m);
1171 dbus_error_free(&error);
1176 static int cancel_job(DBusConnection *bus, char **args) {
1177 DBusMessage *m = NULL, *reply = NULL;
1182 dbus_error_init(&error);
1187 if (strv_length(args) <= 1)
1188 return daemon_reload(bus, args);
1190 STRV_FOREACH(name, args+1) {
1194 if (!(m = dbus_message_new_method_call(
1195 "org.freedesktop.systemd1",
1196 "/org/freedesktop/systemd1",
1197 "org.freedesktop.systemd1.Manager",
1199 log_error("Could not allocate message.");
1204 if ((r = safe_atou(*name, &id)) < 0) {
1205 log_error("Failed to parse job id: %s", strerror(-r));
1209 assert_cc(sizeof(uint32_t) == sizeof(id));
1210 if (!dbus_message_append_args(m,
1211 DBUS_TYPE_UINT32, &id,
1212 DBUS_TYPE_INVALID)) {
1213 log_error("Could not append arguments to message.");
1218 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1219 log_error("Failed to issue method call: %s", bus_error_message(&error));
1224 if (!dbus_message_get_args(reply, &error,
1225 DBUS_TYPE_OBJECT_PATH, &path,
1226 DBUS_TYPE_INVALID)) {
1227 log_error("Failed to parse reply: %s", bus_error_message(&error));
1232 dbus_message_unref(m);
1233 if (!(m = dbus_message_new_method_call(
1234 "org.freedesktop.systemd1",
1236 "org.freedesktop.systemd1.Job",
1238 log_error("Could not allocate message.");
1243 dbus_message_unref(reply);
1244 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1245 log_error("Failed to issue method call: %s", bus_error_message(&error));
1250 dbus_message_unref(m);
1251 dbus_message_unref(reply);
1259 dbus_message_unref(m);
1262 dbus_message_unref(reply);
1264 dbus_error_free(&error);
1269 static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
1270 DBusMessage *m = NULL, *reply = NULL;
1271 dbus_bool_t b = FALSE;
1272 DBusMessageIter iter, sub;
1274 *interface = "org.freedesktop.systemd1.Unit",
1275 *property = "NeedDaemonReload",
1280 /* We ignore all errors here, since this is used to show a warning only */
1282 m = dbus_message_new_method_call(
1283 "org.freedesktop.systemd1",
1284 "/org/freedesktop/systemd1",
1285 "org.freedesktop.systemd1.Manager",
1290 n = unit_name_mangle(unit);
1291 k = dbus_message_append_args(m,
1292 DBUS_TYPE_STRING, n ? (const char**) &n : &unit,
1298 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL);
1302 if (!dbus_message_get_args(reply, NULL,
1303 DBUS_TYPE_OBJECT_PATH, &path,
1307 dbus_message_unref(m);
1308 m = dbus_message_new_method_call(
1309 "org.freedesktop.systemd1",
1311 "org.freedesktop.DBus.Properties",
1316 if (!dbus_message_append_args(m,
1317 DBUS_TYPE_STRING, &interface,
1318 DBUS_TYPE_STRING, &property,
1319 DBUS_TYPE_INVALID)) {
1323 dbus_message_unref(reply);
1324 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL);
1328 if (!dbus_message_iter_init(reply, &iter) ||
1329 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
1332 dbus_message_iter_recurse(&iter, &sub);
1334 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
1337 dbus_message_iter_get_basic(&sub, &b);
1341 dbus_message_unref(m);
1344 dbus_message_unref(reply);
1349 typedef struct WaitData {
1354 static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
1362 dbus_error_init(&error);
1364 log_debug("Got D-Bus request: %s.%s() on %s",
1365 dbus_message_get_interface(message),
1366 dbus_message_get_member(message),
1367 dbus_message_get_path(message));
1369 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
1370 log_error("Warning! D-Bus connection terminated.");
1371 dbus_connection_close(connection);
1373 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1375 const char *path, *result, *unit;
1376 dbus_bool_t success = true;
1378 if (dbus_message_get_args(message, &error,
1379 DBUS_TYPE_UINT32, &id,
1380 DBUS_TYPE_OBJECT_PATH, &path,
1381 DBUS_TYPE_STRING, &unit,
1382 DBUS_TYPE_STRING, &result,
1383 DBUS_TYPE_INVALID)) {
1386 p = set_remove(d->set, (char*) path);
1390 d->result = strdup(result);
1395 dbus_error_free(&error);
1396 if (dbus_message_get_args(message, &error,
1397 DBUS_TYPE_UINT32, &id,
1398 DBUS_TYPE_OBJECT_PATH, &path,
1399 DBUS_TYPE_STRING, &result,
1400 DBUS_TYPE_INVALID)) {
1403 /* Compatibility with older systemd versions <
1404 * 183 during upgrades. This should be dropped
1406 p = set_remove(d->set, (char*) path);
1410 d->result = strdup(result);
1415 dbus_error_free(&error);
1416 if (dbus_message_get_args(message, &error,
1417 DBUS_TYPE_UINT32, &id,
1418 DBUS_TYPE_OBJECT_PATH, &path,
1419 DBUS_TYPE_BOOLEAN, &success,
1420 DBUS_TYPE_INVALID)) {
1423 /* Compatibility with older systemd versions <
1424 * 19 during upgrades. This should be dropped
1427 p = set_remove(d->set, (char*) path);
1431 d->result = strdup("failed");
1437 log_error("Failed to parse message: %s", bus_error_message(&error));
1441 dbus_error_free(&error);
1442 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1445 static int enable_wait_for_jobs(DBusConnection *bus) {
1453 dbus_error_init(&error);
1454 dbus_bus_add_match(bus,
1456 "sender='org.freedesktop.systemd1',"
1457 "interface='org.freedesktop.systemd1.Manager',"
1458 "member='JobRemoved',"
1459 "path='/org/freedesktop/systemd1'",
1462 if (dbus_error_is_set(&error)) {
1463 log_error("Failed to add match: %s", bus_error_message(&error));
1464 dbus_error_free(&error);
1468 /* This is slightly dirty, since we don't undo the match registrations. */
1472 static int wait_for_jobs(DBusConnection *bus, Set *s) {
1482 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
1483 log_error("Failed to add filter.");
1488 while (!set_isempty(s) &&
1489 dbus_connection_read_write_dispatch(bus, -1))
1492 if (!arg_quiet && d.result) {
1493 if (streq(d.result, "timeout"))
1494 log_error("Job timed out.");
1495 else if (streq(d.result, "canceled"))
1496 log_error("Job canceled.");
1497 else if (streq(d.result, "dependency"))
1498 log_error("A dependency job failed. See system journal for details.");
1499 else if (!streq(d.result, "done") && !streq(d.result, "skipped"))
1500 log_error("Job failed. See system journal and 'systemctl status' for details.");
1503 if (streq_ptr(d.result, "timeout"))
1505 else if (streq_ptr(d.result, "canceled"))
1507 else if (!streq_ptr(d.result, "done") && !streq_ptr(d.result, "skipped"))
1515 /* This is slightly dirty, since we don't undo the filter registration. */
1520 static int check_one_unit(DBusConnection *bus, char *name, bool quiet) {
1521 DBusMessage *m = NULL, *reply = NULL;
1523 DBusMessageIter iter, sub;
1525 *interface = "org.freedesktop.systemd1.Unit",
1526 *property = "ActiveState";
1527 const char *path = NULL;
1529 int r = 3; /* According to LSB: "program is not running" */
1536 dbus_error_init(&error);
1538 m = dbus_message_new_method_call(
1539 "org.freedesktop.systemd1",
1540 "/org/freedesktop/systemd1",
1541 "org.freedesktop.systemd1.Manager",
1544 log_error("Could not allocate message.");
1549 n = unit_name_mangle(name);
1550 b = dbus_message_append_args(m,
1551 DBUS_TYPE_STRING, n ? &n : &name,
1555 log_error("Could not append arguments to message.");
1560 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
1562 /* Hmm, cannot figure out anything about this unit... */
1569 if (!dbus_message_get_args(reply, &error,
1570 DBUS_TYPE_OBJECT_PATH, &path,
1571 DBUS_TYPE_INVALID)) {
1572 log_error("Failed to parse reply: %s", bus_error_message(&error));
1577 dbus_message_unref(m);
1578 m = dbus_message_new_method_call(
1579 "org.freedesktop.systemd1",
1581 "org.freedesktop.DBus.Properties",
1584 log_error("Could not allocate message.");
1589 if (!dbus_message_append_args(m,
1590 DBUS_TYPE_STRING, &interface,
1591 DBUS_TYPE_STRING, &property,
1592 DBUS_TYPE_INVALID)) {
1593 log_error("Could not append arguments to message.");
1598 dbus_message_unref(reply);
1599 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
1601 log_error("Failed to issue method call: %s", bus_error_message(&error));
1606 if (!dbus_message_iter_init(reply, &iter) ||
1607 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1608 log_error("Failed to parse reply.");
1613 dbus_message_iter_recurse(&iter, &sub);
1615 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1616 log_error("Failed to parse reply.");
1621 dbus_message_iter_get_basic(&sub, &state);
1626 if (streq(state, "active") || streq(state, "reloading"))
1631 dbus_message_unref(m);
1634 dbus_message_unref(reply);
1636 dbus_error_free(&error);
1641 static void check_triggering_units(
1642 DBusConnection *bus,
1643 const char *unit_name) {
1646 DBusMessage *m = NULL, *reply = NULL;
1647 DBusMessageIter iter, sub;
1648 char *service_trigger = NULL;
1649 const char *interface = "org.freedesktop.systemd1.Unit",
1650 *triggered_by_property = "TriggeredBy";
1652 char *unit_path = NULL, *n = NULL;
1653 bool print_warning_label = true;
1655 dbus_error_init(&error);
1657 n = unit_name_mangle(unit_name);
1658 unit_path = unit_dbus_path_from_name(n ? n : unit_name);
1661 log_error("Could not allocate dbus path.");
1665 m = dbus_message_new_method_call("org.freedesktop.systemd1",
1667 "org.freedesktop.DBus.Properties",
1670 log_error("Could not allocate message.");
1674 if (!dbus_message_append_args(m,
1675 DBUS_TYPE_STRING, &interface,
1676 DBUS_TYPE_STRING, &triggered_by_property,
1677 DBUS_TYPE_INVALID)) {
1678 log_error("Could not append arguments to message.");
1682 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
1684 log_error("Failed to issue method call: %s", bus_error_message(&error));
1688 if (!dbus_message_iter_init(reply, &iter) ||
1689 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1690 log_error("Failed to parse reply: %s", bus_error_message(&error));
1695 dbus_message_iter_recurse(&iter, &sub);
1696 dbus_message_iter_recurse(&sub, &iter);
1699 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1702 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1703 log_error("Failed to parse reply: %s", bus_error_message(&error));
1707 dbus_message_iter_get_basic(&sub, &service_trigger);
1709 r = check_one_unit(bus, service_trigger, true);
1713 if (print_warning_label) {
1714 log_warning("Warning: Stopping %s, but it can still be activated by:", unit_name);
1715 print_warning_label = false;
1717 log_warning(" %s", service_trigger);
1720 dbus_message_iter_next(&sub);
1724 dbus_message_unref(m);
1727 dbus_message_unref(reply);
1729 dbus_error_free(&error);
1734 static int start_unit_one(
1735 DBusConnection *bus,
1742 DBusMessage *m = NULL, *reply = NULL;
1753 assert(arg_no_block || s);
1755 m = dbus_message_new_method_call(
1756 "org.freedesktop.systemd1",
1757 "/org/freedesktop/systemd1",
1758 "org.freedesktop.systemd1.Manager",
1761 log_error("Could not allocate message.");
1766 n = unit_name_mangle(name);
1767 b = dbus_message_append_args(m,
1768 DBUS_TYPE_STRING, n ? (const char **) &n : &name,
1769 DBUS_TYPE_STRING, &mode,
1773 log_error("Could not append arguments to message.");
1778 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error);
1781 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(error)) {
1782 /* There's always a fallback possible for
1783 * legacy actions. */
1788 log_error("Failed to issue method call: %s", bus_error_message(error));
1793 if (!dbus_message_get_args(reply, error,
1794 DBUS_TYPE_OBJECT_PATH, &path,
1795 DBUS_TYPE_INVALID)) {
1796 log_error("Failed to parse reply: %s", bus_error_message(error));
1801 if (need_daemon_reload(bus, name))
1802 log_warning("Warning: Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.",
1803 arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
1805 if (!arg_no_block) {
1808 if (!(p = strdup(path))) {
1809 log_error("Failed to duplicate path.");
1814 if ((r = set_put(s, p)) < 0) {
1816 log_error("Failed to add path to set.");
1821 /* When stopping a unit warn if it can still be triggered by
1822 * another active unit (socket, path, timer) */
1823 if (!arg_quiet && streq(method, "StopUnit"))
1824 check_triggering_units(bus, name);
1830 dbus_message_unref(m);
1833 dbus_message_unref(reply);
1838 static enum action verb_to_action(const char *verb) {
1839 if (streq(verb, "halt"))
1841 else if (streq(verb, "poweroff"))
1842 return ACTION_POWEROFF;
1843 else if (streq(verb, "reboot"))
1844 return ACTION_REBOOT;
1845 else if (streq(verb, "kexec"))
1846 return ACTION_KEXEC;
1847 else if (streq(verb, "rescue"))
1848 return ACTION_RESCUE;
1849 else if (streq(verb, "emergency"))
1850 return ACTION_EMERGENCY;
1851 else if (streq(verb, "default"))
1852 return ACTION_DEFAULT;
1853 else if (streq(verb, "exit"))
1855 else if (streq(verb, "suspend"))
1856 return ACTION_SUSPEND;
1857 else if (streq(verb, "hibernate"))
1858 return ACTION_HIBERNATE;
1860 return ACTION_INVALID;
1863 static int start_unit(DBusConnection *bus, char **args) {
1865 static const char * const table[_ACTION_MAX] = {
1866 [ACTION_HALT] = SPECIAL_HALT_TARGET,
1867 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
1868 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
1869 [ACTION_KEXEC] = SPECIAL_KEXEC_TARGET,
1870 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
1871 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
1872 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
1873 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
1874 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
1875 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
1876 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET,
1877 [ACTION_EXIT] = SPECIAL_EXIT_TARGET,
1878 [ACTION_SUSPEND] = SPECIAL_SUSPEND_TARGET,
1879 [ACTION_HIBERNATE] = SPECIAL_HIBERNATE_TARGET
1883 const char *method, *mode, *one_name;
1888 dbus_error_init(&error);
1892 ask_password_agent_open_if_enabled();
1894 if (arg_action == ACTION_SYSTEMCTL) {
1896 streq(args[0], "stop") ||
1897 streq(args[0], "condstop") ? "StopUnit" :
1898 streq(args[0], "reload") ? "ReloadUnit" :
1899 streq(args[0], "restart") ? "RestartUnit" :
1901 streq(args[0], "try-restart") ||
1902 streq(args[0], "condrestart") ? "TryRestartUnit" :
1904 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
1906 streq(args[0], "reload-or-try-restart") ||
1907 streq(args[0], "condreload") ||
1909 streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" :
1913 (streq(args[0], "isolate") ||
1914 streq(args[0], "rescue") ||
1915 streq(args[0], "emergency")) ? "isolate" : arg_job_mode;
1917 one_name = table[verb_to_action(args[0])];
1920 assert(arg_action < ELEMENTSOF(table));
1921 assert(table[arg_action]);
1923 method = "StartUnit";
1925 mode = (arg_action == ACTION_EMERGENCY ||
1926 arg_action == ACTION_RESCUE ||
1927 arg_action == ACTION_RUNLEVEL2 ||
1928 arg_action == ACTION_RUNLEVEL3 ||
1929 arg_action == ACTION_RUNLEVEL4 ||
1930 arg_action == ACTION_RUNLEVEL5) ? "isolate" : "replace";
1932 one_name = table[arg_action];
1935 if (!arg_no_block) {
1936 if ((ret = enable_wait_for_jobs(bus)) < 0) {
1937 log_error("Could not watch jobs: %s", strerror(-ret));
1941 if (!(s = set_new(string_hash_func, string_compare_func))) {
1942 log_error("Failed to allocate set.");
1949 if ((ret = start_unit_one(bus, method, one_name, mode, &error, s)) <= 0)
1952 STRV_FOREACH(name, args+1)
1953 if ((r = start_unit_one(bus, method, *name, mode, &error, s)) != 0) {
1954 ret = translate_bus_error_to_exit_status(r, &error);
1955 dbus_error_free(&error);
1960 if ((r = wait_for_jobs(bus, s)) < 0) {
1969 dbus_error_free(&error);
1974 /* Ask systemd-logind, which might grant access to unprivileged users
1975 * through PolicyKit */
1976 static int reboot_with_logind(DBusConnection *bus, enum action a) {
1979 DBusMessage *m = NULL, *reply = NULL;
1981 dbus_bool_t interactive = true;
1984 dbus_error_init(&error);
1986 polkit_agent_open_if_enabled();
1994 case ACTION_POWEROFF:
1995 method = "PowerOff";
1998 case ACTION_SUSPEND:
2002 case ACTION_HIBERNATE:
2003 method = "Hibernate";
2010 m = dbus_message_new_method_call(
2011 "org.freedesktop.login1",
2012 "/org/freedesktop/login1",
2013 "org.freedesktop.login1.Manager",
2016 log_error("Could not allocate message.");
2021 if (!dbus_message_append_args(m,
2022 DBUS_TYPE_BOOLEAN, &interactive,
2023 DBUS_TYPE_INVALID)) {
2024 log_error("Could not append arguments to message.");
2029 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
2031 if (error_is_no_service(&error)) {
2032 log_debug("Failed to issue method call: %s", bus_error_message(&error));
2037 if (dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
2038 log_debug("Failed to issue method call: %s", bus_error_message(&error));
2043 log_info("Failed to issue method call: %s", bus_error_message(&error));
2052 dbus_message_unref(m);
2055 dbus_message_unref(reply);
2057 dbus_error_free(&error);
2065 static int start_special(DBusConnection *bus, char **args) {
2071 a = verb_to_action(args[0]);
2073 if (arg_force >= 2 && geteuid() != 0) {
2074 log_error("Must be root.");
2078 if (arg_force >= 2 &&
2079 (a == ACTION_HALT ||
2080 a == ACTION_POWEROFF ||
2081 a == ACTION_REBOOT))
2084 if (arg_force >= 1 &&
2085 (a == ACTION_HALT ||
2086 a == ACTION_POWEROFF ||
2087 a == ACTION_REBOOT ||
2088 a == ACTION_KEXEC ||
2090 return daemon_reload(bus, args);
2092 /* first try logind, to allow authentication with polkit */
2093 if (geteuid() != 0 &&
2094 (a == ACTION_POWEROFF ||
2095 a == ACTION_REBOOT ||
2096 a == ACTION_SUSPEND ||
2097 a == ACTION_HIBERNATE)) {
2098 r = reboot_with_logind(bus, a);
2103 r = start_unit(bus, args);
2110 static int check_unit(DBusConnection *bus, char **args) {
2112 int r = 3; /* According to LSB: "program is not running" */
2117 STRV_FOREACH(name, args+1) {
2118 int state = check_one_unit(bus, *name, arg_quiet);
2128 static int kill_unit(DBusConnection *bus, char **args) {
2129 DBusMessage *m = NULL;
2137 dbus_error_init(&error);
2140 arg_kill_who = "all";
2142 STRV_FOREACH(name, args+1) {
2147 m = dbus_message_new_method_call(
2148 "org.freedesktop.systemd1",
2149 "/org/freedesktop/systemd1",
2150 "org.freedesktop.systemd1.Manager",
2153 log_error("Could not allocate message.");
2158 n = unit_name_mangle(*name);
2159 b = dbus_message_append_args(m,
2160 DBUS_TYPE_STRING, n ? &n : name,
2161 DBUS_TYPE_STRING, &arg_kill_who,
2162 DBUS_TYPE_INT32, &arg_signal,
2166 log_error("Could not append arguments to message.");
2171 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
2173 log_error("Failed to issue method call: %s", bus_error_message(&error));
2174 dbus_error_free(&error);
2178 dbus_message_unref(m);
2181 dbus_message_unref(reply);
2187 dbus_message_unref(m);
2189 dbus_error_free(&error);
2194 typedef struct ExecStatusInfo {
2202 usec_t start_timestamp;
2203 usec_t exit_timestamp;
2208 LIST_FIELDS(struct ExecStatusInfo, exec);
2211 static void exec_status_info_free(ExecStatusInfo *i) {
2220 static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
2221 uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
2222 DBusMessageIter sub2, sub3;
2226 int32_t code, status;
2232 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
2235 dbus_message_iter_recurse(sub, &sub2);
2237 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
2240 if (!(i->path = strdup(path)))
2243 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
2244 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
2248 dbus_message_iter_recurse(&sub2, &sub3);
2249 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
2250 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
2251 dbus_message_iter_next(&sub3);
2256 if (!(i->argv = new0(char*, n+1)))
2260 dbus_message_iter_recurse(&sub2, &sub3);
2261 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
2264 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
2265 dbus_message_iter_get_basic(&sub3, &s);
2266 dbus_message_iter_next(&sub3);
2268 if (!(i->argv[n++] = strdup(s)))
2272 if (!dbus_message_iter_next(&sub2) ||
2273 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
2274 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
2275 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp_monotonic, true) < 0 ||
2276 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
2277 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp_monotonic, true) < 0 ||
2278 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
2279 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
2280 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
2284 i->start_timestamp = (usec_t) start_timestamp;
2285 i->exit_timestamp = (usec_t) exit_timestamp;
2286 i->pid = (pid_t) pid;
2293 typedef struct UnitStatusInfo {
2295 const char *load_state;
2296 const char *active_state;
2297 const char *sub_state;
2298 const char *unit_file_state;
2300 const char *description;
2301 const char *following;
2303 char **documentation;
2305 const char *fragment_path;
2306 const char *source_path;
2307 const char *default_control_group;
2309 const char *load_error;
2312 usec_t inactive_exit_timestamp;
2313 usec_t inactive_exit_timestamp_monotonic;
2314 usec_t active_enter_timestamp;
2315 usec_t active_exit_timestamp;
2316 usec_t inactive_enter_timestamp;
2318 bool need_daemon_reload;
2323 const char *status_text;
2326 usec_t start_timestamp;
2327 usec_t exit_timestamp;
2329 int exit_code, exit_status;
2331 usec_t condition_timestamp;
2332 bool condition_result;
2335 unsigned n_accepted;
2336 unsigned n_connections;
2340 const char *sysfs_path;
2342 /* Mount, Automount */
2348 LIST_HEAD(ExecStatusInfo, exec);
2351 static void print_status_info(UnitStatusInfo *i) {
2353 const char *on, *off, *ss;
2355 char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
2356 char since2[FORMAT_TIMESTAMP_MAX], *s2;
2361 /* This shows pretty information about a unit. See
2362 * print_property() for a low-level property printer */
2364 printf("%s", strna(i->id));
2366 if (i->description && !streq_ptr(i->id, i->description))
2367 printf(" - %s", i->description);
2372 printf("\t Follow: unit currently follows state of %s\n", i->following);
2374 if (streq_ptr(i->load_state, "error")) {
2375 on = ansi_highlight_red(true);
2376 off = ansi_highlight_red(false);
2380 path = i->source_path ? i->source_path : i->fragment_path;
2383 printf("\t Loaded: %s%s%s (Reason: %s)\n", on, strna(i->load_state), off, i->load_error);
2384 else if (path && i->unit_file_state)
2385 printf("\t Loaded: %s%s%s (%s; %s)\n", on, strna(i->load_state), off, path, i->unit_file_state);
2387 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, path);
2389 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
2391 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
2393 if (streq_ptr(i->active_state, "failed")) {
2394 on = ansi_highlight_red(true);
2395 off = ansi_highlight_red(false);
2396 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
2397 on = ansi_highlight_green(true);
2398 off = ansi_highlight_green(false);
2403 printf("\t Active: %s%s (%s)%s",
2405 strna(i->active_state),
2409 printf("\t Active: %s%s%s",
2411 strna(i->active_state),
2414 if (!isempty(i->result) && !streq(i->result, "success"))
2415 printf(" (Result: %s)", i->result);
2417 timestamp = (streq_ptr(i->active_state, "active") ||
2418 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
2419 (streq_ptr(i->active_state, "inactive") ||
2420 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
2421 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
2422 i->active_exit_timestamp;
2424 s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp);
2425 s2 = format_timestamp(since2, sizeof(since2), timestamp);
2428 printf(" since %s; %s\n", s2, s1);
2430 printf(" since %s\n", s2);
2434 if (!i->condition_result && i->condition_timestamp > 0) {
2435 s1 = format_timestamp_pretty(since1, sizeof(since1), i->condition_timestamp);
2436 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
2439 printf("\t start condition failed at %s; %s\n", s2, s1);
2441 printf("\t start condition failed at %s\n", s2);
2445 printf("\t Device: %s\n", i->sysfs_path);
2447 printf("\t Where: %s\n", i->where);
2449 printf("\t What: %s\n", i->what);
2451 if (!strv_isempty(i->documentation)) {
2455 STRV_FOREACH(t, i->documentation) {
2457 printf("\t Docs: %s\n", *t);
2460 printf("\t %s\n", *t);
2465 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
2467 LIST_FOREACH(exec, p, i->exec) {
2471 /* Only show exited processes here */
2475 t = strv_join(p->argv, " ");
2476 printf("\t Process: %u %s=%s ", p->pid, p->name, strna(t));
2479 good = is_clean_exit_lsb(p->code, p->status);
2481 on = ansi_highlight_red(true);
2482 off = ansi_highlight_red(false);
2486 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
2488 if (p->code == CLD_EXITED) {
2491 printf("status=%i", p->status);
2493 c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD);
2498 printf("signal=%s", signal_to_string(p->status));
2500 printf(")%s\n", off);
2502 if (i->main_pid == p->pid &&
2503 i->start_timestamp == p->start_timestamp &&
2504 i->exit_timestamp == p->start_timestamp)
2505 /* Let's not show this twice */
2508 if (p->pid == i->control_pid)
2512 if (i->main_pid > 0 || i->control_pid > 0) {
2515 if (i->main_pid > 0) {
2516 printf("Main PID: %u", (unsigned) i->main_pid);
2520 get_process_comm(i->main_pid, &t);
2525 } else if (i->exit_code > 0) {
2526 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
2528 if (i->exit_code == CLD_EXITED) {
2531 printf("status=%i", i->exit_status);
2533 c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD);
2538 printf("signal=%s", signal_to_string(i->exit_status));
2543 if (i->main_pid > 0 && i->control_pid > 0)
2546 if (i->control_pid > 0) {
2549 printf(" Control: %u", (unsigned) i->control_pid);
2551 get_process_comm(i->control_pid, &t);
2562 printf("\t Status: \"%s\"\n", i->status_text);
2564 if (i->default_control_group) {
2567 printf("\t CGroup: %s\n", i->default_control_group);
2569 if (arg_transport != TRANSPORT_SSH) {
2579 if (i->main_pid > 0)
2580 extra[k++] = i->main_pid;
2582 if (i->control_pid > 0)
2583 extra[k++] = i->control_pid;
2585 show_cgroup_and_extra_by_spec(i->default_control_group, "\t\t ", c, false, arg_all, extra, k);
2589 if (i->id && arg_transport != TRANSPORT_SSH) {
2590 int flags = (arg_lines*OUTPUT_SHOW_ALL |
2591 arg_follow*OUTPUT_FOLLOW |
2592 !arg_quiet*OUTPUT_WARN_CUTOFF);
2594 show_journal_by_unit(i->id, arg_output, 0,
2595 i->inactive_exit_timestamp_monotonic,
2599 if (i->need_daemon_reload)
2600 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
2601 ansi_highlight_red(true),
2602 ansi_highlight_red(false),
2603 arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
2606 static void show_unit_help(UnitStatusInfo *i) {
2611 if (!i->documentation) {
2612 log_info("Documentation for %s not known.", i->id);
2616 STRV_FOREACH(p, i->documentation) {
2618 if (startswith(*p, "man:")) {
2621 char *page = NULL, *section = NULL;
2622 const char *args[4] = { "man", NULL, NULL, NULL };
2627 if ((*p)[k-1] == ')')
2628 e = strrchr(*p, '(');
2631 page = strndup((*p) + 4, e - *p - 4);
2633 log_error("Out of memory.");
2637 section = strndup(e + 1, *p + k - e - 2);
2640 log_error("Out of memory.");
2651 log_error("Failed to fork: %m");
2659 execvp(args[0], (char**) args);
2660 log_error("Failed to execute man: %m");
2661 _exit(EXIT_FAILURE);
2667 wait_for_terminate(pid, NULL);
2669 log_info("Can't show: %s", *p);
2673 static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
2679 switch (dbus_message_iter_get_arg_type(iter)) {
2681 case DBUS_TYPE_STRING: {
2684 dbus_message_iter_get_basic(iter, &s);
2687 if (streq(name, "Id"))
2689 else if (streq(name, "LoadState"))
2691 else if (streq(name, "ActiveState"))
2692 i->active_state = s;
2693 else if (streq(name, "SubState"))
2695 else if (streq(name, "Description"))
2697 else if (streq(name, "FragmentPath"))
2698 i->fragment_path = s;
2699 else if (streq(name, "SourcePath"))
2701 else if (streq(name, "DefaultControlGroup"))
2702 i->default_control_group = s;
2703 else if (streq(name, "StatusText"))
2705 else if (streq(name, "SysFSPath"))
2707 else if (streq(name, "Where"))
2709 else if (streq(name, "What"))
2711 else if (streq(name, "Following"))
2713 else if (streq(name, "UnitFileState"))
2714 i->unit_file_state = s;
2715 else if (streq(name, "Result"))
2722 case DBUS_TYPE_BOOLEAN: {
2725 dbus_message_iter_get_basic(iter, &b);
2727 if (streq(name, "Accept"))
2729 else if (streq(name, "NeedDaemonReload"))
2730 i->need_daemon_reload = b;
2731 else if (streq(name, "ConditionResult"))
2732 i->condition_result = b;
2737 case DBUS_TYPE_UINT32: {
2740 dbus_message_iter_get_basic(iter, &u);
2742 if (streq(name, "MainPID")) {
2744 i->main_pid = (pid_t) u;
2747 } else if (streq(name, "ControlPID"))
2748 i->control_pid = (pid_t) u;
2749 else if (streq(name, "ExecMainPID")) {
2751 i->main_pid = (pid_t) u;
2752 } else if (streq(name, "NAccepted"))
2754 else if (streq(name, "NConnections"))
2755 i->n_connections = u;
2760 case DBUS_TYPE_INT32: {
2763 dbus_message_iter_get_basic(iter, &j);
2765 if (streq(name, "ExecMainCode"))
2766 i->exit_code = (int) j;
2767 else if (streq(name, "ExecMainStatus"))
2768 i->exit_status = (int) j;
2773 case DBUS_TYPE_UINT64: {
2776 dbus_message_iter_get_basic(iter, &u);
2778 if (streq(name, "ExecMainStartTimestamp"))
2779 i->start_timestamp = (usec_t) u;
2780 else if (streq(name, "ExecMainExitTimestamp"))
2781 i->exit_timestamp = (usec_t) u;
2782 else if (streq(name, "ActiveEnterTimestamp"))
2783 i->active_enter_timestamp = (usec_t) u;
2784 else if (streq(name, "InactiveEnterTimestamp"))
2785 i->inactive_enter_timestamp = (usec_t) u;
2786 else if (streq(name, "InactiveExitTimestamp"))
2787 i->inactive_exit_timestamp = (usec_t) u;
2788 else if (streq(name, "InactiveExitTimestampMonotonic"))
2789 i->inactive_exit_timestamp_monotonic = (usec_t) u;
2790 else if (streq(name, "ActiveExitTimestamp"))
2791 i->active_exit_timestamp = (usec_t) u;
2792 else if (streq(name, "ConditionTimestamp"))
2793 i->condition_timestamp = (usec_t) u;
2798 case DBUS_TYPE_ARRAY: {
2800 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
2801 startswith(name, "Exec")) {
2802 DBusMessageIter sub;
2804 dbus_message_iter_recurse(iter, &sub);
2805 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2806 ExecStatusInfo *info;
2809 if (!(info = new0(ExecStatusInfo, 1)))
2812 if (!(info->name = strdup(name))) {
2817 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
2822 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
2824 dbus_message_iter_next(&sub);
2826 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING &&
2827 streq(name, "Documentation")) {
2829 DBusMessageIter sub;
2831 dbus_message_iter_recurse(iter, &sub);
2832 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING) {
2836 dbus_message_iter_get_basic(&sub, &s);
2838 l = strv_append(i->documentation, s);
2842 strv_free(i->documentation);
2843 i->documentation = l;
2845 dbus_message_iter_next(&sub);
2852 case DBUS_TYPE_STRUCT: {
2854 if (streq(name, "LoadError")) {
2855 DBusMessageIter sub;
2856 const char *n, *message;
2859 dbus_message_iter_recurse(iter, &sub);
2861 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &n, true);
2865 r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &message, false);
2869 if (!isempty(message))
2870 i->load_error = message;
2880 static int print_property(const char *name, DBusMessageIter *iter) {
2884 /* This is a low-level property printer, see
2885 * print_status_info() for the nicer output */
2887 if (arg_property && !strv_find(arg_property, name))
2890 switch (dbus_message_iter_get_arg_type(iter)) {
2892 case DBUS_TYPE_STRUCT: {
2893 DBusMessageIter sub;
2894 dbus_message_iter_recurse(iter, &sub);
2896 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
2899 dbus_message_iter_get_basic(&sub, &u);
2902 printf("%s=%u\n", name, (unsigned) u);
2904 printf("%s=\n", name);
2907 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
2910 dbus_message_iter_get_basic(&sub, &s);
2912 if (arg_all || s[0])
2913 printf("%s=%s\n", name, s);
2916 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "LoadError")) {
2917 const char *a = NULL, *b = NULL;
2919 if (bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &a, true) >= 0)
2920 bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &b, false);
2922 if (arg_all || !isempty(a) || !isempty(b))
2923 printf("%s=%s \"%s\"\n", name, strempty(a), strempty(b));
2931 case DBUS_TYPE_ARRAY:
2933 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "EnvironmentFiles")) {
2934 DBusMessageIter sub, sub2;
2936 dbus_message_iter_recurse(iter, &sub);
2937 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2941 dbus_message_iter_recurse(&sub, &sub2);
2943 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) >= 0 &&
2944 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, false) >= 0)
2945 printf("EnvironmentFile=%s (ignore_errors=%s)\n", path, yes_no(ignore));
2947 dbus_message_iter_next(&sub);
2952 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2953 DBusMessageIter sub, sub2;
2955 dbus_message_iter_recurse(iter, &sub);
2956 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2957 const char *type, *path;
2959 dbus_message_iter_recurse(&sub, &sub2);
2961 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2962 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2963 printf("%s=%s\n", type, path);
2965 dbus_message_iter_next(&sub);
2970 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2971 DBusMessageIter sub, sub2;
2973 dbus_message_iter_recurse(iter, &sub);
2974 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2976 uint64_t value, next_elapse;
2978 dbus_message_iter_recurse(&sub, &sub2);
2980 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
2981 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
2982 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
2983 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
2985 printf("%s={ value=%s ; next_elapse=%s }\n",
2987 format_timespan(timespan1, sizeof(timespan1), value),
2988 format_timespan(timespan2, sizeof(timespan2), next_elapse));
2991 dbus_message_iter_next(&sub);
2996 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "ControlGroupAttributes")) {
2997 DBusMessageIter sub, sub2;
2999 dbus_message_iter_recurse(iter, &sub);
3000 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3001 const char *controller, *attr, *value;
3003 dbus_message_iter_recurse(&sub, &sub2);
3005 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &controller, true) >= 0 &&
3006 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &attr, true) >= 0 &&
3007 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &value, false) >= 0) {
3009 printf("ControlGroupAttribute={ controller=%s ; attribute=%s ; value=\"%s\" }\n",
3015 dbus_message_iter_next(&sub);
3020 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
3021 DBusMessageIter sub;
3023 dbus_message_iter_recurse(iter, &sub);
3024 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
3025 ExecStatusInfo info;
3028 if (exec_status_info_deserialize(&sub, &info) >= 0) {
3029 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
3032 t = strv_join(info.argv, " ");
3034 printf("%s={ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
3038 yes_no(info.ignore),
3039 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
3040 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
3041 (unsigned) info. pid,
3042 sigchld_code_to_string(info.code),
3044 info.code == CLD_EXITED ? "" : "/",
3045 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
3051 strv_free(info.argv);
3053 dbus_message_iter_next(&sub);
3062 if (generic_print_property(name, iter, arg_all) > 0)
3066 printf("%s=[unprintable]\n", name);
3071 static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
3072 DBusMessage *m = NULL, *reply = NULL;
3073 const char *interface = "";
3076 DBusMessageIter iter, sub, sub2, sub3;
3077 UnitStatusInfo info;
3085 dbus_error_init(&error);
3087 if (!(m = dbus_message_new_method_call(
3088 "org.freedesktop.systemd1",
3090 "org.freedesktop.DBus.Properties",
3092 log_error("Could not allocate message.");
3097 if (!dbus_message_append_args(m,
3098 DBUS_TYPE_STRING, &interface,
3099 DBUS_TYPE_INVALID)) {
3100 log_error("Could not append arguments to message.");
3105 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3106 log_error("Failed to issue method call: %s", bus_error_message(&error));
3111 if (!dbus_message_iter_init(reply, &iter) ||
3112 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
3113 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
3114 log_error("Failed to parse reply.");
3119 dbus_message_iter_recurse(&iter, &sub);
3126 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
3129 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
3130 log_error("Failed to parse reply.");
3135 dbus_message_iter_recurse(&sub, &sub2);
3137 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
3138 log_error("Failed to parse reply.");
3143 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
3144 log_error("Failed to parse reply.");
3149 dbus_message_iter_recurse(&sub2, &sub3);
3151 if (show_properties)
3152 r = print_property(name, &sub3);
3154 r = status_property(name, &sub3, &info);
3157 log_error("Failed to parse reply.");
3162 dbus_message_iter_next(&sub);
3167 if (!show_properties) {
3168 if (streq(verb, "help"))
3169 show_unit_help(&info);
3171 print_status_info(&info);
3174 strv_free(info.documentation);
3176 if (!streq_ptr(info.active_state, "active") &&
3177 !streq_ptr(info.active_state, "reloading") &&
3178 streq(verb, "status"))
3179 /* According to LSB: "program not running" */
3182 while ((p = info.exec)) {
3183 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
3184 exec_status_info_free(p);
3189 dbus_message_unref(m);
3192 dbus_message_unref(reply);
3194 dbus_error_free(&error);
3199 static int show_one_by_pid(const char *verb, DBusConnection *bus, uint32_t pid, bool *new_line) {
3200 DBusMessage *m = NULL, *reply = NULL;
3201 const char *path = NULL;
3205 dbus_error_init(&error);
3207 m = dbus_message_new_method_call(
3208 "org.freedesktop.systemd1",
3209 "/org/freedesktop/systemd1",
3210 "org.freedesktop.systemd1.Manager",
3213 log_error("Could not allocate message.");
3218 if (!dbus_message_append_args(m,
3219 DBUS_TYPE_UINT32, &pid,
3220 DBUS_TYPE_INVALID)) {
3221 log_error("Could not append arguments to message.");
3226 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3228 log_error("Failed to issue method call: %s", bus_error_message(&error));
3233 if (!dbus_message_get_args(reply, &error,
3234 DBUS_TYPE_OBJECT_PATH, &path,
3235 DBUS_TYPE_INVALID)) {
3236 log_error("Failed to parse reply: %s", bus_error_message(&error));
3241 r = show_one(verb, bus, path, false, new_line);
3245 dbus_message_unref(m);
3248 dbus_message_unref(reply);
3250 dbus_error_free(&error);
3255 static int show(DBusConnection *bus, char **args) {
3257 bool show_properties, new_line = false;
3263 show_properties = streq(args[0], "show");
3265 if (show_properties)
3266 pager_open_if_enabled();
3268 if (show_properties && strv_length(args) <= 1) {
3269 /* If not argument is specified inspect the manager
3272 return show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line);
3275 STRV_FOREACH(name, args+1) {
3278 if (safe_atou32(*name, &id) < 0) {
3280 /* Interpret as unit name */
3282 n = unit_name_mangle(*name);
3283 p = unit_dbus_path_from_name(n ? n : *name);
3286 log_error("Out of memory.");
3290 r = show_one(args[0], bus, p, show_properties, &new_line);
3296 } else if (show_properties) {
3298 /* Interpret as job id */
3301 if (asprintf(&p, "/org/freedesktop/systemd1/job/%u", id) < 0) {
3302 log_error("Out of memory.");
3306 r = show_one(args[0], bus, p, show_properties, &new_line);
3314 /* Interpret as PID */
3316 r = show_one_by_pid(args[0], bus, id, &new_line);
3325 static int dump(DBusConnection *bus, char **args) {
3326 DBusMessage *m = NULL, *reply = NULL;
3331 dbus_error_init(&error);
3333 pager_open_if_enabled();
3335 if (!(m = dbus_message_new_method_call(
3336 "org.freedesktop.systemd1",
3337 "/org/freedesktop/systemd1",
3338 "org.freedesktop.systemd1.Manager",
3340 log_error("Could not allocate message.");
3344 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3345 log_error("Failed to issue method call: %s", bus_error_message(&error));
3350 if (!dbus_message_get_args(reply, &error,
3351 DBUS_TYPE_STRING, &text,
3352 DBUS_TYPE_INVALID)) {
3353 log_error("Failed to parse reply: %s", bus_error_message(&error));
3358 fputs(text, stdout);
3364 dbus_message_unref(m);
3367 dbus_message_unref(reply);
3369 dbus_error_free(&error);
3374 static int snapshot(DBusConnection *bus, char **args) {
3375 DBusMessage *m = NULL, *reply = NULL;
3378 const char *name = "", *path, *id;
3379 dbus_bool_t cleanup = FALSE;
3380 DBusMessageIter iter, sub;
3382 *interface = "org.freedesktop.systemd1.Unit",
3387 dbus_error_init(&error);
3389 m = dbus_message_new_method_call(
3390 "org.freedesktop.systemd1",
3391 "/org/freedesktop/systemd1",
3392 "org.freedesktop.systemd1.Manager",
3395 log_error("Could not allocate message.");
3399 if (strv_length(args) > 1)
3402 n = unit_name_mangle(name);
3403 b = dbus_message_append_args(m,
3404 DBUS_TYPE_STRING, n ? (const char**) &n : &name,
3405 DBUS_TYPE_BOOLEAN, &cleanup,
3409 log_error("Could not append arguments to message.");
3414 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3416 log_error("Failed to issue method call: %s", bus_error_message(&error));
3421 if (!dbus_message_get_args(reply, &error,
3422 DBUS_TYPE_OBJECT_PATH, &path,
3423 DBUS_TYPE_INVALID)) {
3424 log_error("Failed to parse reply: %s", bus_error_message(&error));
3429 dbus_message_unref(m);
3430 m = dbus_message_new_method_call(
3431 "org.freedesktop.systemd1",
3433 "org.freedesktop.DBus.Properties",
3436 log_error("Could not allocate message.");
3440 if (!dbus_message_append_args(m,
3441 DBUS_TYPE_STRING, &interface,
3442 DBUS_TYPE_STRING, &property,
3443 DBUS_TYPE_INVALID)) {
3444 log_error("Could not append arguments to message.");
3449 dbus_message_unref(reply);
3450 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3452 log_error("Failed to issue method call: %s", bus_error_message(&error));
3457 if (!dbus_message_iter_init(reply, &iter) ||
3458 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3459 log_error("Failed to parse reply.");
3464 dbus_message_iter_recurse(&iter, &sub);
3466 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
3467 log_error("Failed to parse reply.");
3472 dbus_message_iter_get_basic(&sub, &id);
3480 dbus_message_unref(m);
3483 dbus_message_unref(reply);
3485 dbus_error_free(&error);
3490 static int delete_snapshot(DBusConnection *bus, char **args) {
3491 DBusMessage *m = NULL, *reply = NULL;
3499 dbus_error_init(&error);
3501 STRV_FOREACH(name, args+1) {
3502 const char *path = NULL;
3506 m = dbus_message_new_method_call(
3507 "org.freedesktop.systemd1",
3508 "/org/freedesktop/systemd1",
3509 "org.freedesktop.systemd1.Manager",
3512 log_error("Could not allocate message.");
3517 n = unit_name_mangle(*name);
3518 b = dbus_message_append_args(m,
3519 DBUS_TYPE_STRING, n ? &n : name,
3523 log_error("Could not append arguments to message.");
3528 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3530 log_error("Failed to issue method call: %s", bus_error_message(&error));
3535 if (!dbus_message_get_args(reply, &error,
3536 DBUS_TYPE_OBJECT_PATH, &path,
3537 DBUS_TYPE_INVALID)) {
3538 log_error("Failed to parse reply: %s", bus_error_message(&error));
3543 dbus_message_unref(m);
3544 m = dbus_message_new_method_call(
3545 "org.freedesktop.systemd1",
3547 "org.freedesktop.systemd1.Snapshot",
3550 log_error("Could not allocate message.");
3555 dbus_message_unref(reply);
3556 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3558 log_error("Failed to issue method call: %s", bus_error_message(&error));
3563 dbus_message_unref(m);
3564 dbus_message_unref(reply);
3572 dbus_message_unref(m);
3575 dbus_message_unref(reply);
3577 dbus_error_free(&error);
3582 static int daemon_reload(DBusConnection *bus, char **args) {
3583 DBusMessage *m = NULL, *reply = NULL;
3588 dbus_error_init(&error);
3590 if (arg_action == ACTION_RELOAD)
3592 else if (arg_action == ACTION_REEXEC)
3593 method = "Reexecute";
3595 assert(arg_action == ACTION_SYSTEMCTL);
3598 streq(args[0], "clear-jobs") ||
3599 streq(args[0], "cancel") ? "ClearJobs" :
3600 streq(args[0], "daemon-reexec") ? "Reexecute" :
3601 streq(args[0], "reset-failed") ? "ResetFailed" :
3602 streq(args[0], "halt") ? "Halt" :
3603 streq(args[0], "poweroff") ? "PowerOff" :
3604 streq(args[0], "reboot") ? "Reboot" :
3605 streq(args[0], "kexec") ? "KExec" :
3606 streq(args[0], "exit") ? "Exit" :
3607 /* "daemon-reload" */ "Reload";
3610 if (!(m = dbus_message_new_method_call(
3611 "org.freedesktop.systemd1",
3612 "/org/freedesktop/systemd1",
3613 "org.freedesktop.systemd1.Manager",
3615 log_error("Could not allocate message.");
3619 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3621 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
3622 /* There's always a fallback possible for
3623 * legacy actions. */
3628 if (streq(method, "Reexecute") && dbus_error_has_name(&error, DBUS_ERROR_NO_REPLY)) {
3629 /* On reexecution, we expect a disconnect, not
3635 log_error("Failed to issue method call: %s", bus_error_message(&error));
3644 dbus_message_unref(m);
3647 dbus_message_unref(reply);
3649 dbus_error_free(&error);
3654 static int reset_failed(DBusConnection *bus, char **args) {
3655 DBusMessage *m = NULL;
3661 dbus_error_init(&error);
3663 if (strv_length(args) <= 1)
3664 return daemon_reload(bus, args);
3666 STRV_FOREACH(name, args+1) {
3671 m = dbus_message_new_method_call(
3672 "org.freedesktop.systemd1",
3673 "/org/freedesktop/systemd1",
3674 "org.freedesktop.systemd1.Manager",
3677 log_error("Could not allocate message.");
3682 n = unit_name_mangle(*name);
3683 b = dbus_message_append_args(m,
3684 DBUS_TYPE_STRING, n ? &n : name,
3688 log_error("Could not append arguments to message.");
3693 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3695 log_error("Failed to issue method call: %s", bus_error_message(&error));
3700 dbus_message_unref(m);
3701 dbus_message_unref(reply);
3709 dbus_message_unref(m);
3711 dbus_error_free(&error);
3716 static int show_enviroment(DBusConnection *bus, char **args) {
3717 DBusMessage *m = NULL, *reply = NULL;
3719 DBusMessageIter iter, sub, sub2;
3722 *interface = "org.freedesktop.systemd1.Manager",
3723 *property = "Environment";
3725 dbus_error_init(&error);
3727 pager_open_if_enabled();
3729 if (!(m = dbus_message_new_method_call(
3730 "org.freedesktop.systemd1",
3731 "/org/freedesktop/systemd1",
3732 "org.freedesktop.DBus.Properties",
3734 log_error("Could not allocate message.");
3738 if (!dbus_message_append_args(m,
3739 DBUS_TYPE_STRING, &interface,
3740 DBUS_TYPE_STRING, &property,
3741 DBUS_TYPE_INVALID)) {
3742 log_error("Could not append arguments to message.");
3747 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3748 log_error("Failed to issue method call: %s", bus_error_message(&error));
3753 if (!dbus_message_iter_init(reply, &iter) ||
3754 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3755 log_error("Failed to parse reply.");
3760 dbus_message_iter_recurse(&iter, &sub);
3762 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3763 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3764 log_error("Failed to parse reply.");
3769 dbus_message_iter_recurse(&sub, &sub2);
3771 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3774 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3775 log_error("Failed to parse reply.");
3780 dbus_message_iter_get_basic(&sub2, &text);
3781 printf("%s\n", text);
3783 dbus_message_iter_next(&sub2);
3790 dbus_message_unref(m);
3793 dbus_message_unref(reply);
3795 dbus_error_free(&error);
3800 static int switch_root(DBusConnection *bus, char **args) {
3801 DBusMessage *m = NULL, *reply = NULL;
3803 const char *root, *init;
3807 dbus_error_init(&error);
3809 l = strv_length(args);
3810 if (l < 2 || l > 3) {
3811 log_error("Wrong number of arguments.");
3816 init = l >= 3 ? args[2] : "";
3818 m = dbus_message_new_method_call(
3819 "org.freedesktop.systemd1",
3820 "/org/freedesktop/systemd1",
3821 "org.freedesktop.systemd1.Manager",
3824 log_error("Could not allocate message.");
3828 if (!dbus_message_append_args(
3830 DBUS_TYPE_STRING, &root,
3831 DBUS_TYPE_STRING, &init,
3832 DBUS_TYPE_INVALID)) {
3833 log_error("Could not append arguments to message.");
3838 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
3840 log_error("Failed to issue method call: %s", bus_error_message(&error));
3849 dbus_message_unref(m);
3852 dbus_message_unref(reply);
3854 dbus_error_free(&error);
3859 static int set_environment(DBusConnection *bus, char **args) {
3860 DBusMessage *m = NULL, *reply = NULL;
3864 DBusMessageIter iter, sub;
3867 dbus_error_init(&error);
3869 method = streq(args[0], "set-environment")
3871 : "UnsetEnvironment";
3873 if (!(m = dbus_message_new_method_call(
3874 "org.freedesktop.systemd1",
3875 "/org/freedesktop/systemd1",
3876 "org.freedesktop.systemd1.Manager",
3879 log_error("Could not allocate message.");
3883 dbus_message_iter_init_append(m, &iter);
3885 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
3886 log_error("Could not append arguments to message.");
3891 STRV_FOREACH(name, args+1)
3892 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, name)) {
3893 log_error("Could not append arguments to message.");
3898 if (!dbus_message_iter_close_container(&iter, &sub)) {
3899 log_error("Could not append arguments to message.");
3904 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3905 log_error("Failed to issue method call: %s", bus_error_message(&error));
3914 dbus_message_unref(m);
3917 dbus_message_unref(reply);
3919 dbus_error_free(&error);
3924 static int enable_sysv_units(char **args) {
3927 #if defined (HAVE_SYSV_COMPAT) && (defined(TARGET_FEDORA) || defined(TARGET_MANDRIVA) || defined(TARGET_SUSE) || defined(TARGET_ALTLINUX) || defined(TARGET_MAGEIA))
3928 const char *verb = args[0];
3929 unsigned f = 1, t = 1;
3932 if (arg_scope != UNIT_FILE_SYSTEM)
3935 if (!streq(verb, "enable") &&
3936 !streq(verb, "disable") &&
3937 !streq(verb, "is-enabled"))
3940 /* Processes all SysV units, and reshuffles the array so that
3941 * afterwards only the native units remain */
3944 r = lookup_paths_init(&paths, MANAGER_SYSTEM, false, NULL, NULL, NULL);
3949 for (f = 1; args[f]; f++) {
3952 bool found_native = false, found_sysv;
3954 const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL };
3955 char **k, *l, *q = NULL;
3962 if (!endswith(name, ".service"))
3965 if (path_is_absolute(name))
3968 STRV_FOREACH(k, paths.unit_path) {
3971 if (!isempty(arg_root))
3972 asprintf(&p, "%s/%s/%s", arg_root, *k, name);
3974 asprintf(&p, "%s/%s", *k, name);
3977 log_error("Out of memory.");
3982 found_native = access(p, F_OK) >= 0;
3993 if (!isempty(arg_root))
3994 asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name);
3996 asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name);
3998 log_error("Out of memory.");
4003 p[strlen(p) - sizeof(".service") + 1] = 0;
4004 found_sysv = access(p, F_OK) >= 0;
4011 /* Mark this entry, so that we don't try enabling it as native unit */
4012 args[f] = (char*) "";
4014 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name);
4016 if (!isempty(arg_root))
4017 argv[c++] = q = strappend("--root=", arg_root);
4019 argv[c++] = path_get_file_name(p);
4021 streq(verb, "enable") ? "on" :
4022 streq(verb, "disable") ? "off" : "--level=5";
4025 l = strv_join((char**)argv, " ");
4027 log_error("Out of memory.");
4034 log_info("Executing %s", l);
4039 log_error("Failed to fork: %m");
4044 } else if (pid == 0) {
4047 execv(argv[0], (char**) argv);
4048 _exit(EXIT_FAILURE);
4054 j = wait_for_terminate(pid, &status);
4056 log_error("Failed to wait for child: %s", strerror(-r));
4061 if (status.si_code == CLD_EXITED) {
4062 if (streq(verb, "is-enabled")) {
4063 if (status.si_status == 0) {
4072 } else if (status.si_status != 0) {
4083 lookup_paths_free(&paths);
4085 /* Drop all SysV units */
4086 for (f = 1, t = 1; args[f]; f++) {
4088 if (isempty(args[f]))
4091 args[t++] = args[f];
4100 static int enable_unit(DBusConnection *bus, char **args) {
4101 const char *verb = args[0];
4102 UnitFileChange *changes = NULL;
4103 unsigned n_changes = 0, i;
4104 int carries_install_info = -1;
4105 DBusMessage *m = NULL, *reply = NULL;
4109 r = enable_sysv_units(args);
4116 dbus_error_init(&error);
4118 if (!bus || avoid_bus()) {
4119 if (streq(verb, "enable")) {
4120 r = unit_file_enable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4121 carries_install_info = r;
4122 } else if (streq(verb, "disable"))
4123 r = unit_file_disable(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
4124 else if (streq(verb, "reenable")) {
4125 r = unit_file_reenable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4126 carries_install_info = r;
4127 } else if (streq(verb, "link"))
4128 r = unit_file_link(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4129 else if (streq(verb, "preset")) {
4130 r = unit_file_preset(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4131 carries_install_info = r;
4132 } else if (streq(verb, "mask"))
4133 r = unit_file_mask(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes);
4134 else if (streq(verb, "unmask"))
4135 r = unit_file_unmask(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes);
4137 assert_not_reached("Unknown verb");
4140 log_error("Operation failed: %s", strerror(-r));
4145 for (i = 0; i < n_changes; i++) {
4146 if (changes[i].type == UNIT_FILE_SYMLINK)
4147 log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path);
4149 log_info("rm '%s'", changes[i].path);
4155 bool send_force = true, expect_carries_install_info = false;
4157 DBusMessageIter iter, sub, sub2;
4159 if (streq(verb, "enable")) {
4160 method = "EnableUnitFiles";
4161 expect_carries_install_info = true;
4162 } else if (streq(verb, "disable")) {
4163 method = "DisableUnitFiles";
4165 } else if (streq(verb, "reenable")) {
4166 method = "ReenableUnitFiles";
4167 expect_carries_install_info = true;
4168 } else if (streq(verb, "link"))
4169 method = "LinkUnitFiles";
4170 else if (streq(verb, "preset")) {
4171 method = "PresetUnitFiles";
4172 expect_carries_install_info = true;
4173 } else if (streq(verb, "mask"))
4174 method = "MaskUnitFiles";
4175 else if (streq(verb, "unmask")) {
4176 method = "UnmaskUnitFiles";
4179 assert_not_reached("Unknown verb");
4181 m = dbus_message_new_method_call(
4182 "org.freedesktop.systemd1",
4183 "/org/freedesktop/systemd1",
4184 "org.freedesktop.systemd1.Manager",
4187 log_error("Out of memory.");
4192 dbus_message_iter_init_append(m, &iter);
4194 r = bus_append_strv_iter(&iter, args+1);
4196 log_error("Failed to append unit files.");
4201 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &a)) {
4202 log_error("Failed to append runtime boolean.");
4210 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b)) {
4211 log_error("Failed to append force boolean.");
4217 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
4219 log_error("Failed to issue method call: %s", bus_error_message(&error));
4224 if (!dbus_message_iter_init(reply, &iter)) {
4225 log_error("Failed to initialize iterator.");
4229 if (expect_carries_install_info) {
4230 r = bus_iter_get_basic_and_next(&iter, DBUS_TYPE_BOOLEAN, &b, true);
4232 log_error("Failed to parse reply.");
4236 carries_install_info = b;
4239 if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
4240 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
4241 log_error("Failed to parse reply.");
4246 dbus_message_iter_recurse(&iter, &sub);
4247 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
4248 const char *type, *path, *source;
4250 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
4251 log_error("Failed to parse reply.");
4256 dbus_message_iter_recurse(&sub, &sub2);
4258 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
4259 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0 ||
4260 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &source, false) < 0) {
4261 log_error("Failed to parse reply.");
4267 if (streq(type, "symlink"))
4268 log_info("ln -s '%s' '%s'", source, path);
4270 log_info("rm '%s'", path);
4273 dbus_message_iter_next(&sub);
4276 /* Try to reload if enabeld */
4278 r = daemon_reload(bus, args);
4281 if (carries_install_info == 0)
4282 log_warning("The unit files have no [Install] section. They are not meant to be enabled using systemctl.");
4286 dbus_message_unref(m);
4289 dbus_message_unref(reply);
4291 unit_file_changes_free(changes, n_changes);
4293 dbus_error_free(&error);
4297 static int unit_is_enabled(DBusConnection *bus, char **args) {
4300 DBusMessage *m = NULL, *reply = NULL;
4304 dbus_error_init(&error);
4306 r = enable_sysv_units(args);
4312 if (!bus || avoid_bus()) {
4314 STRV_FOREACH(name, args+1) {
4315 UnitFileState state;
4317 state = unit_file_get_state(arg_scope, arg_root, *name);
4323 if (state == UNIT_FILE_ENABLED ||
4324 state == UNIT_FILE_ENABLED_RUNTIME ||
4325 state == UNIT_FILE_STATIC)
4329 puts(unit_file_state_to_string(state));
4333 STRV_FOREACH(name, args+1) {
4336 m = dbus_message_new_method_call(
4337 "org.freedesktop.systemd1",
4338 "/org/freedesktop/systemd1",
4339 "org.freedesktop.systemd1.Manager",
4340 "GetUnitFileState");
4342 log_error("Out of memory.");
4347 if (!dbus_message_append_args(m,
4348 DBUS_TYPE_STRING, name,
4349 DBUS_TYPE_INVALID)) {
4350 log_error("Could not append arguments to message.");
4355 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
4357 log_error("Failed to issue method call: %s", bus_error_message(&error));
4362 if (!dbus_message_get_args(reply, &error,
4363 DBUS_TYPE_STRING, &s,
4364 DBUS_TYPE_INVALID)) {
4365 log_error("Failed to parse reply: %s", bus_error_message(&error));
4370 dbus_message_unref(m);
4371 dbus_message_unref(reply);
4374 if (streq(s, "enabled") ||
4375 streq(s, "enabled-runtime") ||
4384 r = enabled ? 0 : 1;
4388 dbus_message_unref(m);
4391 dbus_message_unref(reply);
4393 dbus_error_free(&error);
4397 static int systemctl_help(void) {
4399 pager_open_if_enabled();
4401 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
4402 "Query or send control commands to the systemd manager.\n\n"
4403 " -h --help Show this help\n"
4404 " --version Show package version\n"
4405 " -t --type=TYPE List only units of a particular type\n"
4406 " -p --property=NAME Show only properties by this name\n"
4407 " -a --all Show all units/properties, including dead/empty ones\n"
4408 " --failed Show only failed units\n"
4409 " --full Don't ellipsize unit names on output\n"
4410 " --fail When queueing a new job, fail if conflicting jobs are\n"
4412 " --ignore-dependencies\n"
4413 " When queueing a new job, ignore all its dependencies\n"
4414 " --kill-who=WHO Who to send signal to\n"
4415 " -s --signal=SIGNAL Which signal to send\n"
4416 " -H --host=[USER@]HOST\n"
4417 " Show information for remote host\n"
4418 " -P --privileged Acquire privileges before execution\n"
4419 " -q --quiet Suppress output\n"
4420 " --no-block Do not wait until operation finished\n"
4421 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4422 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
4424 " --no-legend Do not print a legend (column headers and hints)\n"
4425 " --no-pager Do not pipe output into a pager\n"
4426 " --no-ask-password\n"
4427 " Do not ask for system passwords\n"
4428 " --order When generating graph for dot, show only order\n"
4429 " --require When generating graph for dot, show only requirement\n"
4430 " --system Connect to system manager\n"
4431 " --user Connect to user service manager\n"
4432 " --global Enable/disable unit files globally\n"
4433 " -f --force When enabling unit files, override existing symlinks\n"
4434 " When shutting down, execute action immediately\n"
4435 " --root=PATH Enable unit files in the specified root directory\n"
4436 " --runtime Enable unit files only temporarily until next reboot\n"
4437 " -n --lines=INTEGER Journal entries to show\n"
4438 " --follow Follow journal\n"
4439 " -o --output=STRING Change journal output mode (short, short-monotonic,\n"
4440 " verbose, export, json, cat)\n\n"
4442 " list-units List loaded units\n"
4443 " start [NAME...] Start (activate) one or more units\n"
4444 " stop [NAME...] Stop (deactivate) one or more units\n"
4445 " reload [NAME...] Reload one or more units\n"
4446 " restart [NAME...] Start or restart one or more units\n"
4447 " try-restart [NAME...] Restart one or more units if active\n"
4448 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
4449 " otherwise start or restart\n"
4450 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
4451 " otherwise restart if active\n"
4452 " isolate [NAME] Start one unit and stop all others\n"
4453 " kill [NAME...] Send signal to processes of a unit\n"
4454 " is-active [NAME...] Check whether units are active\n"
4455 " status [NAME...|PID...] Show runtime status of one or more units\n"
4456 " show [NAME...|JOB...] Show properties of one or more\n"
4457 " units/jobs or the manager\n"
4458 " help [NAME...|PID...] Show manual for one or more units\n"
4459 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
4461 " load [NAME...] Load one or more units\n\n"
4462 "Unit File Commands:\n"
4463 " list-unit-files List installed unit files\n"
4464 " enable [NAME...] Enable one or more unit files\n"
4465 " disable [NAME...] Disable one or more unit files\n"
4466 " reenable [NAME...] Reenable one or more unit files\n"
4467 " preset [NAME...] Enable/disable one or more unit files\n"
4468 " based on preset configuration\n"
4469 " mask [NAME...] Mask one or more units\n"
4470 " unmask [NAME...] Unmask one or more units\n"
4471 " link [PATH...] Link one or more units files into\n"
4472 " the search path\n"
4473 " is-enabled [NAME...] Check whether unit files are enabled\n\n"
4475 " list-jobs List jobs\n"
4476 " cancel [JOB...] Cancel all, one, or more jobs\n\n"
4477 "Status Commands:\n"
4478 " dump Dump server status\n"
4479 " dot Dump dependency graph for dot(1)\n\n"
4480 "Snapshot Commands:\n"
4481 " snapshot [NAME] Create a snapshot\n"
4482 " delete [NAME...] Remove one or more snapshots\n\n"
4483 "Environment Commands:\n"
4484 " show-environment Dump environment\n"
4485 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
4486 " unset-environment [NAME...] Unset one or more environment variables\n\n"
4487 "Manager Lifecycle Commands:\n"
4488 " daemon-reload Reload systemd manager configuration\n"
4489 " daemon-reexec Reexecute systemd manager\n\n"
4490 "System Commands:\n"
4491 " default Enter system default mode\n"
4492 " rescue Enter system rescue mode\n"
4493 " emergency Enter system emergency mode\n"
4494 " halt Shut down and halt the system\n"
4495 " poweroff Shut down and power-off the system\n"
4496 " reboot Shut down and reboot the system\n"
4497 " kexec Shut down and reboot the system with kexec\n"
4498 " exit Request user instance exit\n"
4499 " switch-root [ROOT] [INIT] Change to a different root file system\n"
4500 " suspend Suspend the system\n"
4501 " hibernate Hibernate the system\n",
4502 program_invocation_short_name);
4507 static int halt_help(void) {
4509 printf("%s [OPTIONS...]\n\n"
4510 "%s the system.\n\n"
4511 " --help Show this help\n"
4512 " --halt Halt the machine\n"
4513 " -p --poweroff Switch off the machine\n"
4514 " --reboot Reboot the machine\n"
4515 " -f --force Force immediate halt/power-off/reboot\n"
4516 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
4517 " -d --no-wtmp Don't write wtmp record\n"
4518 " -n --no-sync Don't sync before halt/power-off/reboot\n"
4519 " --no-wall Don't send wall message before halt/power-off/reboot\n",
4520 program_invocation_short_name,
4521 arg_action == ACTION_REBOOT ? "Reboot" :
4522 arg_action == ACTION_POWEROFF ? "Power off" :
4528 static int shutdown_help(void) {
4530 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
4531 "Shut down the system.\n\n"
4532 " --help Show this help\n"
4533 " -H --halt Halt the machine\n"
4534 " -P --poweroff Power-off the machine\n"
4535 " -r --reboot Reboot the machine\n"
4536 " -h Equivalent to --poweroff, overridden by --halt\n"
4537 " -k Don't halt/power-off/reboot, just send warnings\n"
4538 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4539 " -c Cancel a pending shutdown\n",
4540 program_invocation_short_name);
4545 static int telinit_help(void) {
4547 printf("%s [OPTIONS...] {COMMAND}\n\n"
4548 "Send control commands to the init daemon.\n\n"
4549 " --help Show this help\n"
4550 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
4552 " 0 Power-off the machine\n"
4553 " 6 Reboot the machine\n"
4554 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4555 " 1, s, S Enter rescue mode\n"
4556 " q, Q Reload init daemon configuration\n"
4557 " u, U Reexecute init daemon\n",
4558 program_invocation_short_name);
4563 static int runlevel_help(void) {
4565 printf("%s [OPTIONS...]\n\n"
4566 "Prints the previous and current runlevel of the init system.\n\n"
4567 " --help Show this help\n",
4568 program_invocation_short_name);
4573 static int systemctl_parse_argv(int argc, char *argv[]) {
4577 ARG_IGNORE_DEPENDENCIES,
4592 ARG_NO_ASK_PASSWORD,
4599 static const struct option options[] = {
4600 { "help", no_argument, NULL, 'h' },
4601 { "version", no_argument, NULL, ARG_VERSION },
4602 { "type", required_argument, NULL, 't' },
4603 { "property", required_argument, NULL, 'p' },
4604 { "all", no_argument, NULL, 'a' },
4605 { "failed", no_argument, NULL, ARG_FAILED },
4606 { "full", no_argument, NULL, ARG_FULL },
4607 { "fail", no_argument, NULL, ARG_FAIL },
4608 { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES },
4609 { "user", no_argument, NULL, ARG_USER },
4610 { "system", no_argument, NULL, ARG_SYSTEM },
4611 { "global", no_argument, NULL, ARG_GLOBAL },
4612 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4613 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
4614 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
4615 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4616 { "quiet", no_argument, NULL, 'q' },
4617 { "order", no_argument, NULL, ARG_ORDER },
4618 { "require", no_argument, NULL, ARG_REQUIRE },
4619 { "root", required_argument, NULL, ARG_ROOT },
4620 { "force", no_argument, NULL, ARG_FORCE },
4621 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
4622 { "kill-who", required_argument, NULL, ARG_KILL_WHO },
4623 { "signal", required_argument, NULL, 's' },
4624 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
4625 { "host", required_argument, NULL, 'H' },
4626 { "privileged",no_argument, NULL, 'P' },
4627 { "runtime", no_argument, NULL, ARG_RUNTIME },
4628 { "lines", required_argument, NULL, 'n' },
4629 { "follow", no_argument, NULL, ARG_FOLLOW },
4630 { "output", required_argument, NULL, 'o' },
4631 { NULL, 0, NULL, 0 }
4639 while ((c = getopt_long(argc, argv, "ht:p:aqfs:H:Pn:o:", options, NULL)) >= 0) {
4648 puts(PACKAGE_STRING);
4650 puts(SYSTEMD_FEATURES);
4654 if (unit_type_from_string(optarg) >= 0) {
4658 if (unit_load_state_from_string(optarg) >= 0) {
4659 arg_load_state = optarg;
4662 log_error("Unkown unit type or load state '%s'.",
4668 if (!(l = strv_append(arg_property, optarg)))
4671 strv_free(arg_property);
4674 /* If the user asked for a particular
4675 * property, show it to him, even if it is
4686 arg_job_mode = "fail";
4689 case ARG_IGNORE_DEPENDENCIES:
4690 arg_job_mode = "ignore-dependencies";
4694 arg_scope = UNIT_FILE_USER;
4698 arg_scope = UNIT_FILE_SYSTEM;
4702 arg_scope = UNIT_FILE_GLOBAL;
4706 arg_no_block = true;
4710 arg_no_legend = true;
4714 arg_no_pager = true;
4722 arg_dot = DOT_ORDER;
4726 arg_dot = DOT_REQUIRE;
4754 /* -f is short for both --follow and --force! */
4760 arg_no_reload = true;
4764 arg_kill_who = optarg;
4768 if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) {
4769 log_error("Failed to parse signal string %s.", optarg);
4774 case ARG_NO_ASK_PASSWORD:
4775 arg_ask_password = false;
4779 arg_transport = TRANSPORT_POLKIT;
4783 arg_transport = TRANSPORT_SSH;
4792 if (safe_atou(optarg, &arg_lines) < 0) {
4793 log_error("Failed to parse lines '%s'", optarg);
4799 arg_output = output_mode_from_string(optarg);
4800 if (arg_output < 0) {
4801 log_error("Unknown output '%s'.", optarg);
4810 log_error("Unknown option code '%c'.", c);
4815 if (arg_transport != TRANSPORT_NORMAL && arg_scope != UNIT_FILE_SYSTEM) {
4816 log_error("Cannot access user instance remotely.");
4823 static int halt_parse_argv(int argc, char *argv[]) {
4832 static const struct option options[] = {
4833 { "help", no_argument, NULL, ARG_HELP },
4834 { "halt", no_argument, NULL, ARG_HALT },
4835 { "poweroff", no_argument, NULL, 'p' },
4836 { "reboot", no_argument, NULL, ARG_REBOOT },
4837 { "force", no_argument, NULL, 'f' },
4838 { "wtmp-only", no_argument, NULL, 'w' },
4839 { "no-wtmp", no_argument, NULL, 'd' },
4840 { "no-sync", no_argument, NULL, 'n' },
4841 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4842 { NULL, 0, NULL, 0 }
4850 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4851 if (runlevel == '0' || runlevel == '6')
4854 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4862 arg_action = ACTION_HALT;
4866 if (arg_action != ACTION_REBOOT)
4867 arg_action = ACTION_POWEROFF;
4871 arg_action = ACTION_REBOOT;
4896 /* Compatibility nops */
4903 log_error("Unknown option code '%c'.", c);
4908 if (optind < argc) {
4909 log_error("Too many arguments.");
4916 static int parse_time_spec(const char *t, usec_t *_u) {
4920 if (streq(t, "now"))
4922 else if (!strchr(t, ':')) {
4925 if (safe_atou64(t, &u) < 0)
4928 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4937 hour = strtol(t, &e, 10);
4938 if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
4941 minute = strtol(e+1, &e, 10);
4942 if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
4945 n = now(CLOCK_REALTIME);
4946 s = (time_t) (n / USEC_PER_SEC);
4949 assert_se(localtime_r(&s, &tm));
4951 tm.tm_hour = (int) hour;
4952 tm.tm_min = (int) minute;
4955 assert_se(s = mktime(&tm));
4957 *_u = (usec_t) s * USEC_PER_SEC;
4960 *_u += USEC_PER_DAY;
4966 static int shutdown_parse_argv(int argc, char *argv[]) {
4973 static const struct option options[] = {
4974 { "help", no_argument, NULL, ARG_HELP },
4975 { "halt", no_argument, NULL, 'H' },
4976 { "poweroff", no_argument, NULL, 'P' },
4977 { "reboot", no_argument, NULL, 'r' },
4978 { "kexec", no_argument, NULL, 'K' }, /* not documented extension */
4979 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4980 { NULL, 0, NULL, 0 }
4988 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
4996 arg_action = ACTION_HALT;
5000 arg_action = ACTION_POWEROFF;
5005 arg_action = ACTION_KEXEC;
5007 arg_action = ACTION_REBOOT;
5011 arg_action = ACTION_KEXEC;
5015 if (arg_action != ACTION_HALT)
5016 arg_action = ACTION_POWEROFF;
5029 /* Compatibility nops */
5033 arg_action = ACTION_CANCEL_SHUTDOWN;
5040 log_error("Unknown option code '%c'.", c);
5045 if (argc > optind) {
5046 r = parse_time_spec(argv[optind], &arg_when);
5048 log_error("Failed to parse time specification: %s", argv[optind]);
5052 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
5054 /* We skip the time argument */
5055 if (argc > optind + 1)
5056 arg_wall = argv + optind + 1;
5063 static int telinit_parse_argv(int argc, char *argv[]) {
5070 static const struct option options[] = {
5071 { "help", no_argument, NULL, ARG_HELP },
5072 { "no-wall", no_argument, NULL, ARG_NO_WALL },
5073 { NULL, 0, NULL, 0 }
5076 static const struct {
5080 { '0', ACTION_POWEROFF },
5081 { '6', ACTION_REBOOT },
5082 { '1', ACTION_RESCUE },
5083 { '2', ACTION_RUNLEVEL2 },
5084 { '3', ACTION_RUNLEVEL3 },
5085 { '4', ACTION_RUNLEVEL4 },
5086 { '5', ACTION_RUNLEVEL5 },
5087 { 's', ACTION_RESCUE },
5088 { 'S', ACTION_RESCUE },
5089 { 'q', ACTION_RELOAD },
5090 { 'Q', ACTION_RELOAD },
5091 { 'u', ACTION_REEXEC },
5092 { 'U', ACTION_REEXEC }
5101 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5116 log_error("Unknown option code '%c'.", c);
5121 if (optind >= argc) {
5126 if (optind + 1 < argc) {
5127 log_error("Too many arguments.");
5131 if (strlen(argv[optind]) != 1) {
5132 log_error("Expected single character argument.");
5136 for (i = 0; i < ELEMENTSOF(table); i++)
5137 if (table[i].from == argv[optind][0])
5140 if (i >= ELEMENTSOF(table)) {
5141 log_error("Unknown command '%s'.", argv[optind]);
5145 arg_action = table[i].to;
5152 static int runlevel_parse_argv(int argc, char *argv[]) {
5158 static const struct option options[] = {
5159 { "help", no_argument, NULL, ARG_HELP },
5160 { NULL, 0, NULL, 0 }
5168 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
5179 log_error("Unknown option code '%c'.", c);
5184 if (optind < argc) {
5185 log_error("Too many arguments.");
5192 static int parse_argv(int argc, char *argv[]) {
5196 if (program_invocation_short_name) {
5198 if (strstr(program_invocation_short_name, "halt")) {
5199 arg_action = ACTION_HALT;
5200 return halt_parse_argv(argc, argv);
5201 } else if (strstr(program_invocation_short_name, "poweroff")) {
5202 arg_action = ACTION_POWEROFF;
5203 return halt_parse_argv(argc, argv);
5204 } else if (strstr(program_invocation_short_name, "reboot")) {
5206 arg_action = ACTION_KEXEC;
5208 arg_action = ACTION_REBOOT;
5209 return halt_parse_argv(argc, argv);
5210 } else if (strstr(program_invocation_short_name, "shutdown")) {
5211 arg_action = ACTION_POWEROFF;
5212 return shutdown_parse_argv(argc, argv);
5213 } else if (strstr(program_invocation_short_name, "init")) {
5215 if (sd_booted() > 0) {
5216 arg_action = ACTION_INVALID;
5217 return telinit_parse_argv(argc, argv);
5219 /* Hmm, so some other init system is
5220 * running, we need to forward this
5221 * request to it. For now we simply
5222 * guess that it is Upstart. */
5224 execv("/lib/upstart/telinit", argv);
5226 log_error("Couldn't find an alternative telinit implementation to spawn.");
5230 } else if (strstr(program_invocation_short_name, "runlevel")) {
5231 arg_action = ACTION_RUNLEVEL;
5232 return runlevel_parse_argv(argc, argv);
5236 arg_action = ACTION_SYSTEMCTL;
5237 return systemctl_parse_argv(argc, argv);
5240 static int action_to_runlevel(void) {
5242 static const char table[_ACTION_MAX] = {
5243 [ACTION_HALT] = '0',
5244 [ACTION_POWEROFF] = '0',
5245 [ACTION_REBOOT] = '6',
5246 [ACTION_RUNLEVEL2] = '2',
5247 [ACTION_RUNLEVEL3] = '3',
5248 [ACTION_RUNLEVEL4] = '4',
5249 [ACTION_RUNLEVEL5] = '5',
5250 [ACTION_RESCUE] = '1'
5253 assert(arg_action < _ACTION_MAX);
5255 return table[arg_action];
5258 static int talk_upstart(void) {
5259 DBusMessage *m = NULL, *reply = NULL;
5261 int previous, rl, r;
5263 env1_buf[] = "RUNLEVEL=X",
5264 env2_buf[] = "PREVLEVEL=X";
5265 char *env1 = env1_buf, *env2 = env2_buf;
5266 const char *emit = "runlevel";
5267 dbus_bool_t b_false = FALSE;
5268 DBusMessageIter iter, sub;
5269 DBusConnection *bus;
5271 dbus_error_init(&error);
5273 if (!(rl = action_to_runlevel()))
5276 if (utmp_get_runlevel(&previous, NULL) < 0)
5279 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
5280 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
5285 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
5290 if ((r = bus_check_peercred(bus)) < 0) {
5291 log_error("Failed to verify owner of bus.");
5295 if (!(m = dbus_message_new_method_call(
5296 "com.ubuntu.Upstart",
5297 "/com/ubuntu/Upstart",
5298 "com.ubuntu.Upstart0_6",
5301 log_error("Could not allocate message.");
5306 dbus_message_iter_init_append(m, &iter);
5308 env1_buf[sizeof(env1_buf)-2] = rl;
5309 env2_buf[sizeof(env2_buf)-2] = previous;
5311 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
5312 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
5313 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
5314 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
5315 !dbus_message_iter_close_container(&iter, &sub) ||
5316 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
5317 log_error("Could not append arguments to message.");
5322 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
5324 if (error_is_no_service(&error)) {
5329 log_error("Failed to issue method call: %s", bus_error_message(&error));
5338 dbus_message_unref(m);
5341 dbus_message_unref(reply);
5344 dbus_connection_flush(bus);
5345 dbus_connection_close(bus);
5346 dbus_connection_unref(bus);
5349 dbus_error_free(&error);
5354 static int talk_initctl(void) {
5355 struct init_request request;
5359 if (!(rl = action_to_runlevel()))
5363 request.magic = INIT_MAGIC;
5364 request.sleeptime = 0;
5365 request.cmd = INIT_CMD_RUNLVL;
5366 request.runlevel = rl;
5368 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
5370 if (errno == ENOENT)
5373 log_error("Failed to open "INIT_FIFO": %m");
5378 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
5379 close_nointr_nofail(fd);
5382 log_error("Failed to write to "INIT_FIFO": %m");
5383 return errno ? -errno : -EIO;
5389 static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
5391 static const struct {
5399 int (* const dispatch)(DBusConnection *bus, char **args);
5401 { "list-units", LESS, 1, list_units },
5402 { "list-unit-files", EQUAL, 1, list_unit_files },
5403 { "list-jobs", EQUAL, 1, list_jobs },
5404 { "clear-jobs", EQUAL, 1, daemon_reload },
5405 { "load", MORE, 2, load_unit },
5406 { "cancel", MORE, 2, cancel_job },
5407 { "start", MORE, 2, start_unit },
5408 { "stop", MORE, 2, start_unit },
5409 { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5410 { "reload", MORE, 2, start_unit },
5411 { "restart", MORE, 2, start_unit },
5412 { "try-restart", MORE, 2, start_unit },
5413 { "reload-or-restart", MORE, 2, start_unit },
5414 { "reload-or-try-restart", MORE, 2, start_unit },
5415 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
5416 { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */
5417 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
5418 { "isolate", EQUAL, 2, start_unit },
5419 { "kill", MORE, 2, kill_unit },
5420 { "is-active", MORE, 2, check_unit },
5421 { "check", MORE, 2, check_unit },
5422 { "show", MORE, 1, show },
5423 { "status", MORE, 2, show },
5424 { "help", MORE, 2, show },
5425 { "dump", EQUAL, 1, dump },
5426 { "dot", EQUAL, 1, dot },
5427 { "snapshot", LESS, 2, snapshot },
5428 { "delete", MORE, 2, delete_snapshot },
5429 { "daemon-reload", EQUAL, 1, daemon_reload },
5430 { "daemon-reexec", EQUAL, 1, daemon_reload },
5431 { "show-environment", EQUAL, 1, show_enviroment },
5432 { "set-environment", MORE, 2, set_environment },
5433 { "unset-environment", MORE, 2, set_environment },
5434 { "halt", EQUAL, 1, start_special },
5435 { "poweroff", EQUAL, 1, start_special },
5436 { "reboot", EQUAL, 1, start_special },
5437 { "kexec", EQUAL, 1, start_special },
5438 { "suspend", EQUAL, 1, start_special },
5439 { "hibernate", EQUAL, 1, start_special },
5440 { "default", EQUAL, 1, start_special },
5441 { "rescue", EQUAL, 1, start_special },
5442 { "emergency", EQUAL, 1, start_special },
5443 { "exit", EQUAL, 1, start_special },
5444 { "reset-failed", MORE, 1, reset_failed },
5445 { "enable", MORE, 2, enable_unit },
5446 { "disable", MORE, 2, enable_unit },
5447 { "is-enabled", MORE, 2, unit_is_enabled },
5448 { "reenable", MORE, 2, enable_unit },
5449 { "preset", MORE, 2, enable_unit },
5450 { "mask", MORE, 2, enable_unit },
5451 { "unmask", MORE, 2, enable_unit },
5452 { "link", MORE, 2, enable_unit },
5453 { "switch-root", MORE, 2, switch_root },
5463 left = argc - optind;
5466 /* Special rule: no arguments means "list-units" */
5469 if (streq(argv[optind], "help") && !argv[optind+1]) {
5470 log_error("This command expects one or more "
5471 "unit names. Did you mean --help?");
5475 for (i = 0; i < ELEMENTSOF(verbs); i++)
5476 if (streq(argv[optind], verbs[i].verb))
5479 if (i >= ELEMENTSOF(verbs)) {
5480 log_error("Unknown operation '%s'.", argv[optind]);
5485 switch (verbs[i].argc_cmp) {
5488 if (left != verbs[i].argc) {
5489 log_error("Invalid number of arguments.");
5496 if (left < verbs[i].argc) {
5497 log_error("Too few arguments.");
5504 if (left > verbs[i].argc) {
5505 log_error("Too many arguments.");
5512 assert_not_reached("Unknown comparison operator.");
5515 /* Require a bus connection for all operations but
5517 if (!streq(verbs[i].verb, "enable") &&
5518 !streq(verbs[i].verb, "disable") &&
5519 !streq(verbs[i].verb, "is-enabled") &&
5520 !streq(verbs[i].verb, "list-unit-files") &&
5521 !streq(verbs[i].verb, "reenable") &&
5522 !streq(verbs[i].verb, "preset") &&
5523 !streq(verbs[i].verb, "mask") &&
5524 !streq(verbs[i].verb, "unmask") &&
5525 !streq(verbs[i].verb, "link")) {
5527 if (running_in_chroot() > 0) {
5528 log_info("Running in chroot, ignoring request.");
5532 if (((!streq(verbs[i].verb, "reboot") &&
5533 !streq(verbs[i].verb, "halt") &&
5534 !streq(verbs[i].verb, "poweroff")) || arg_force <= 0) && !bus) {
5535 log_error("Failed to get D-Bus connection: %s",
5536 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5542 if (!bus && !avoid_bus()) {
5543 log_error("Failed to get D-Bus connection: %s",
5544 dbus_error_is_set(error) ? error->message : "No connection to service manager.");
5549 return verbs[i].dispatch(bus, argv + optind);
5552 static int send_shutdownd(usec_t t, char mode, bool dry_run, bool warn, const char *message) {
5554 struct msghdr msghdr;
5555 struct iovec iovec[2];
5556 union sockaddr_union sockaddr;
5557 struct sd_shutdown_command c;
5559 fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
5566 c.dry_run = dry_run;
5570 sockaddr.sa.sa_family = AF_UNIX;
5571 strncpy(sockaddr.un.sun_path, "/run/systemd/shutdownd", sizeof(sockaddr.un.sun_path));
5574 msghdr.msg_name = &sockaddr;
5575 msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + sizeof("/run/systemd/shutdownd") - 1;
5578 iovec[0].iov_base = (char*) &c;
5579 iovec[0].iov_len = offsetof(struct sd_shutdown_command, wall_message);
5581 if (isempty(message))
5582 msghdr.msg_iovlen = 1;
5584 iovec[1].iov_base = (char*) message;
5585 iovec[1].iov_len = strlen(message);
5586 msghdr.msg_iovlen = 2;
5588 msghdr.msg_iov = iovec;
5590 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
5591 close_nointr_nofail(fd);
5595 close_nointr_nofail(fd);
5599 static int reload_with_fallback(DBusConnection *bus) {
5602 /* First, try systemd via D-Bus. */
5603 if (daemon_reload(bus, NULL) >= 0)
5607 /* Nothing else worked, so let's try signals */
5608 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
5610 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
5611 log_error("kill() failed: %m");
5618 static int start_with_fallback(DBusConnection *bus) {
5621 /* First, try systemd via D-Bus. */
5622 if (start_unit(bus, NULL) >= 0)
5626 /* Hmm, talking to systemd via D-Bus didn't work. Then
5627 * let's try to talk to Upstart via D-Bus. */
5628 if (talk_upstart() > 0)
5631 /* Nothing else worked, so let's try
5633 if (talk_initctl() > 0)
5636 log_error("Failed to talk to init daemon.");
5640 warn_wall(arg_action);
5644 static _noreturn_ void halt_now(enum action a) {
5646 /* Make sure C-A-D is handled by the kernel from this
5648 reboot(RB_ENABLE_CAD);
5653 log_info("Halting.");
5654 reboot(RB_HALT_SYSTEM);
5657 case ACTION_POWEROFF:
5658 log_info("Powering off.");
5659 reboot(RB_POWER_OFF);
5663 log_info("Rebooting.");
5664 reboot(RB_AUTOBOOT);
5668 assert_not_reached("Unknown halt action.");
5671 assert_not_reached("Uh? This shouldn't happen.");
5674 static int halt_main(DBusConnection *bus) {
5677 if (geteuid() != 0) {
5678 /* Try logind if we are a normal user and no special
5679 * mode applies. Maybe PolicyKit allows us to shutdown
5682 if (arg_when <= 0 &&
5685 (arg_action == ACTION_POWEROFF ||
5686 arg_action == ACTION_REBOOT)) {
5687 r = reboot_with_logind(bus, arg_action);
5692 log_error("Must be root.");
5699 m = strv_join(arg_wall, " ");
5700 r = send_shutdownd(arg_when,
5701 arg_action == ACTION_HALT ? 'H' :
5702 arg_action == ACTION_POWEROFF ? 'P' :
5703 arg_action == ACTION_KEXEC ? 'K' :
5711 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
5713 char date[FORMAT_TIMESTAMP_MAX];
5715 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
5716 format_timestamp(date, sizeof(date), arg_when));
5721 if (!arg_dry && !arg_force)
5722 return start_with_fallback(bus);
5725 if (sd_booted() > 0)
5726 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
5728 r = utmp_put_shutdown();
5730 log_warning("Failed to write utmp record: %s", strerror(-r));
5740 halt_now(arg_action);
5741 /* We should never reach this. */
5745 static int runlevel_main(void) {
5746 int r, runlevel, previous;
5748 r = utmp_get_runlevel(&runlevel, &previous);
5755 previous <= 0 ? 'N' : previous,
5756 runlevel <= 0 ? 'N' : runlevel);
5761 int main(int argc, char*argv[]) {
5762 int r, retval = EXIT_FAILURE;
5763 DBusConnection *bus = NULL;
5766 dbus_error_init(&error);
5768 log_parse_environment();
5771 r = parse_argv(argc, argv);
5775 retval = EXIT_SUCCESS;
5779 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5780 * let's shortcut this */
5781 if (arg_action == ACTION_RUNLEVEL) {
5782 r = runlevel_main();
5783 retval = r < 0 ? EXIT_FAILURE : r;
5787 if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) {
5788 log_info("Running in chroot, ignoring request.");
5794 if (arg_transport == TRANSPORT_NORMAL)
5795 bus_connect(arg_scope == UNIT_FILE_SYSTEM ? DBUS_BUS_SYSTEM : DBUS_BUS_SESSION, &bus, &private_bus, &error);
5796 else if (arg_transport == TRANSPORT_POLKIT) {
5797 bus_connect_system_polkit(&bus, &error);
5798 private_bus = false;
5799 } else if (arg_transport == TRANSPORT_SSH) {
5800 bus_connect_system_ssh(NULL, arg_host, &bus, &error);
5801 private_bus = false;
5803 assert_not_reached("Uh, invalid transport...");
5806 switch (arg_action) {
5808 case ACTION_SYSTEMCTL:
5809 r = systemctl_main(bus, argc, argv, &error);
5813 case ACTION_POWEROFF:
5819 case ACTION_RUNLEVEL2:
5820 case ACTION_RUNLEVEL3:
5821 case ACTION_RUNLEVEL4:
5822 case ACTION_RUNLEVEL5:
5824 case ACTION_EMERGENCY:
5825 case ACTION_DEFAULT:
5826 r = start_with_fallback(bus);
5831 r = reload_with_fallback(bus);
5834 case ACTION_CANCEL_SHUTDOWN:
5835 r = send_shutdownd(0, 0, false, false, NULL);
5838 case ACTION_INVALID:
5839 case ACTION_RUNLEVEL:
5841 assert_not_reached("Unknown action");
5844 retval = r < 0 ? EXIT_FAILURE : r;
5848 dbus_connection_flush(bus);
5849 dbus_connection_close(bus);
5850 dbus_connection_unref(bus);
5853 dbus_error_free(&error);
5857 strv_free(arg_property);
5860 ask_password_agent_close();
5861 polkit_agent_close();