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 General Public License as published by
10 the Free Software Foundation; either version 2 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 General Public License for more details.
18 You should have received a copy of the GNU 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>
36 #include <dbus/dbus.h>
42 #include "utmp-wtmp.h"
46 #include "dbus-common.h"
47 #include "cgroup-show.h"
48 #include "cgroup-util.h"
50 #include "path-lookup.h"
51 #include "conf-parser.h"
52 #include "sd-daemon.h"
53 #include "shutdownd.h"
54 #include "exit-status.h"
55 #include "bus-errors.h"
57 #include "unit-name.h"
59 static const char *arg_type = NULL;
60 static char **arg_property = NULL;
61 static bool arg_all = false;
62 static bool arg_fail = false;
63 static bool arg_session = false;
64 static bool arg_global = false;
65 static bool arg_immediate = false;
66 static bool arg_no_block = false;
67 static bool arg_no_wtmp = false;
68 static bool arg_no_sync = false;
69 static bool arg_no_wall = false;
70 static bool arg_no_reload = false;
71 static bool arg_dry = false;
72 static bool arg_quiet = false;
73 static bool arg_full = false;
74 static bool arg_force = false;
75 static bool arg_defaults = false;
76 static char **arg_wall = NULL;
77 static usec_t arg_when = 0;
94 ACTION_CANCEL_SHUTDOWN,
96 } arg_action = ACTION_SYSTEMCTL;
103 static bool private_bus = false;
105 static int daemon_reload(DBusConnection *bus, char **args, unsigned n);
107 static bool on_tty(void) {
110 if (_unlikely_(t < 0))
111 t = isatty(STDOUT_FILENO) > 0;
116 static const char *ansi_highlight(bool b) {
121 return b ? ANSI_HIGHLIGHT_ON : ANSI_HIGHLIGHT_OFF;
124 static const char *ansi_highlight_green(bool b) {
129 return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF;
132 static bool error_is_no_service(const DBusError *error) {
135 if (!dbus_error_is_set(error))
138 if (dbus_error_has_name(error, DBUS_ERROR_NAME_HAS_NO_OWNER))
141 if (dbus_error_has_name(error, DBUS_ERROR_SERVICE_UNKNOWN))
144 return startswith(error->name, "org.freedesktop.DBus.Error.Spawn.");
147 static int translate_bus_error_to_exit_status(int r, const DBusError *error) {
150 if (!dbus_error_is_set(error))
153 if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) ||
154 dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
155 dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
156 dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
157 return EXIT_NOPERMISSION;
159 if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
160 return EXIT_NOTINSTALLED;
162 if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
163 dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED))
164 return EXIT_NOTIMPLEMENTED;
166 if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
167 return EXIT_NOTCONFIGURED;
175 static int bus_iter_get_basic_and_next(DBusMessageIter *iter, int type, void *data, bool next) {
180 if (dbus_message_iter_get_arg_type(iter) != type)
183 dbus_message_iter_get_basic(iter, data);
185 if (!dbus_message_iter_next(iter) != !next)
191 static void warn_wall(enum action action) {
192 static const char *table[_ACTION_MAX] = {
193 [ACTION_HALT] = "The system is going down for system halt NOW!",
194 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
195 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
196 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
197 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!"
206 if (!(p = strv_join(arg_wall, " "))) {
207 log_error("Failed to join strings.");
223 utmp_wall(table[action]);
228 const char *description;
229 const char *load_state;
230 const char *active_state;
231 const char *sub_state;
232 const char *following;
233 const char *unit_path;
235 const char *job_type;
236 const char *job_path;
239 static int compare_unit_info(const void *a, const void *b) {
241 const struct unit_info *u = a, *v = b;
243 d1 = strrchr(u->id, '.');
244 d2 = strrchr(v->id, '.');
249 if ((r = strcasecmp(d1, d2)) != 0)
253 return strcasecmp(u->id, v->id);
256 static bool output_show_job(const struct unit_info *u) {
259 return (!arg_type || ((dot = strrchr(u->id, '.')) &&
260 streq(dot+1, arg_type))) &&
261 (arg_all || !(streq(u->active_state, "inactive") || u->following[0]) || u->job_id > 0);
264 static void output_units_list(const struct unit_info *unit_infos, unsigned c) {
265 unsigned active_len, sub_len, job_len;
266 const struct unit_info *u;
268 active_len = sizeof("ACTIVE")-1;
269 sub_len = sizeof("SUB")-1;
270 job_len = sizeof("JOB")-1;
272 for (u = unit_infos; u < unit_infos + c; u++) {
273 if (!output_show_job(u))
276 active_len = MAX(active_len, strlen(u->active_state));
277 sub_len = MAX(sub_len, strlen(u->sub_state));
279 job_len = MAX(job_len, strlen(u->job_type));
283 printf("%-25s %-6s %-*s %-*s %-*s", "UNIT", "LOAD",
284 active_len, "ACTIVE", sub_len, "SUB", job_len, "JOB");
285 if (columns() >= 80+12 || arg_full)
286 printf(" %s\n", "DESCRIPTION");
291 for (u = unit_infos; u < unit_infos + c; u++) {
294 const char *on_loaded, *off_loaded;
295 const char *on_active, *off_active;
297 if (!output_show_job(u))
300 if (!streq(u->load_state, "loaded") &&
301 !streq(u->load_state, "banned")) {
302 on_loaded = ansi_highlight(true);
303 off_loaded = ansi_highlight(false);
305 on_loaded = off_loaded = "";
307 if (streq(u->active_state, "failed")) {
308 on_active = ansi_highlight(true);
309 off_active = ansi_highlight(false);
311 on_active = off_active = "";
313 e = arg_full ? NULL : ellipsize(u->id, 25, 33);
315 printf("%-25s %s%-6s%s %s%-*s %-*s%s%n",
317 on_loaded, u->load_state, off_loaded,
318 on_active, active_len, u->active_state,
319 sub_len, u->sub_state, off_active,
324 a -= strlen(on_loaded) + strlen(off_loaded);
325 a -= strlen(on_active) + strlen(off_active);
328 printf(" %-*s", job_len, u->job_type);
332 if (a + b + 1 < columns()) {
334 printf(" %-*s", job_len, "");
337 printf(" %s", u->description);
339 printf(" %.*s", columns() - a - b - 1, u->description);
346 printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
347 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
348 "SUB = The low-level unit activation state, values depend on unit type.\n"
349 "JOB = Pending job for the unit.\n");
352 printf("\n%u units listed.\n", c);
354 printf("\n%u units listed. Pass --all to see inactive units, too.\n", c);
358 static int list_units(DBusConnection *bus, char **args, unsigned n) {
359 DBusMessage *m = NULL, *reply = NULL;
362 DBusMessageIter iter, sub, sub2;
363 unsigned c = 0, n_units = 0;
364 struct unit_info *unit_infos = NULL;
366 dbus_error_init(&error);
370 if (!(m = dbus_message_new_method_call(
371 "org.freedesktop.systemd1",
372 "/org/freedesktop/systemd1",
373 "org.freedesktop.systemd1.Manager",
375 log_error("Could not allocate message.");
379 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
380 log_error("Failed to issue method call: %s", bus_error_message(&error));
385 if (!dbus_message_iter_init(reply, &iter) ||
386 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
387 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
388 log_error("Failed to parse reply.");
393 dbus_message_iter_recurse(&iter, &sub);
395 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
398 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
399 log_error("Failed to parse reply.");
407 n_units = MAX(2*c, 16);
408 w = realloc(unit_infos, sizeof(struct unit_info) * n_units);
411 log_error("Failed to allocate unit array.");
421 dbus_message_iter_recurse(&sub, &sub2);
423 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->id, true) < 0 ||
424 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->description, true) < 0 ||
425 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->load_state, true) < 0 ||
426 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->active_state, true) < 0 ||
427 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->sub_state, true) < 0 ||
428 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->following, true) < 0 ||
429 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->unit_path, true) < 0 ||
430 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &u->job_id, true) < 0 ||
431 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->job_type, true) < 0 ||
432 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->job_path, false) < 0) {
433 log_error("Failed to parse reply.");
438 dbus_message_iter_next(&sub);
442 qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info);
443 output_units_list(unit_infos, c);
449 dbus_message_unref(m);
452 dbus_message_unref(reply);
456 dbus_error_free(&error);
461 static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) {
462 static const char * const colors[] = {
463 "Requires", "[color=\"black\"]",
464 "RequiresOverridable", "[color=\"black\"]",
465 "Requisite", "[color=\"darkblue\"]",
466 "RequisiteOverridable", "[color=\"darkblue\"]",
467 "Wants", "[color=\"darkgrey\"]",
468 "Conflicts", "[color=\"red\"]",
469 "ConflictedBy", "[color=\"red\"]",
470 "After", "[color=\"green\"]"
473 const char *c = NULL;
480 for (i = 0; i < ELEMENTSOF(colors); i += 2)
481 if (streq(colors[i], prop)) {
489 if (arg_dot != DOT_ALL)
490 if ((arg_dot == DOT_ORDER) != streq(prop, "After"))
493 switch (dbus_message_iter_get_arg_type(iter)) {
495 case DBUS_TYPE_ARRAY:
497 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
500 dbus_message_iter_recurse(iter, &sub);
502 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
505 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
506 dbus_message_iter_get_basic(&sub, &s);
507 printf("\t\"%s\"->\"%s\" %s;\n", name, s, c);
509 dbus_message_iter_next(&sub);
519 static int dot_one(DBusConnection *bus, const char *name, const char *path) {
520 DBusMessage *m = NULL, *reply = NULL;
521 const char *interface = "org.freedesktop.systemd1.Unit";
524 DBusMessageIter iter, sub, sub2, sub3;
529 dbus_error_init(&error);
531 if (!(m = dbus_message_new_method_call(
532 "org.freedesktop.systemd1",
534 "org.freedesktop.DBus.Properties",
536 log_error("Could not allocate message.");
541 if (!dbus_message_append_args(m,
542 DBUS_TYPE_STRING, &interface,
543 DBUS_TYPE_INVALID)) {
544 log_error("Could not append arguments to message.");
549 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
550 log_error("Failed to issue method call: %s", bus_error_message(&error));
555 if (!dbus_message_iter_init(reply, &iter) ||
556 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
557 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
558 log_error("Failed to parse reply.");
563 dbus_message_iter_recurse(&iter, &sub);
565 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
568 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
569 log_error("Failed to parse reply.");
574 dbus_message_iter_recurse(&sub, &sub2);
576 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
577 log_error("Failed to parse reply.");
582 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
583 log_error("Failed to parse reply.");
588 dbus_message_iter_recurse(&sub2, &sub3);
590 if (dot_one_property(name, prop, &sub3)) {
591 log_error("Failed to parse reply.");
596 dbus_message_iter_next(&sub);
603 dbus_message_unref(m);
606 dbus_message_unref(reply);
608 dbus_error_free(&error);
613 static int dot(DBusConnection *bus, char **args, unsigned n) {
614 DBusMessage *m = NULL, *reply = NULL;
617 DBusMessageIter iter, sub, sub2;
619 dbus_error_init(&error);
623 if (!(m = dbus_message_new_method_call(
624 "org.freedesktop.systemd1",
625 "/org/freedesktop/systemd1",
626 "org.freedesktop.systemd1.Manager",
628 log_error("Could not allocate message.");
632 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
633 log_error("Failed to issue method call: %s", bus_error_message(&error));
638 if (!dbus_message_iter_init(reply, &iter) ||
639 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
640 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
641 log_error("Failed to parse reply.");
646 printf("digraph systemd {\n");
648 dbus_message_iter_recurse(&iter, &sub);
649 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
650 const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path;
652 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
653 log_error("Failed to parse reply.");
658 dbus_message_iter_recurse(&sub, &sub2);
660 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
661 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
662 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
663 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
664 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
665 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 ||
666 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) {
667 log_error("Failed to parse reply.");
672 if ((r = dot_one(bus, id, unit_path)) < 0)
675 /* printf("\t\"%s\";\n", id); */
676 dbus_message_iter_next(&sub);
681 log_info(" Color legend: black = Requires\n"
682 " dark blue = Requisite\n"
683 " dark grey = Wants\n"
687 if (isatty(fileno(stdout)))
688 log_notice("-- You probably want to process this output with graphviz' dot tool.\n"
689 "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n");
695 dbus_message_unref(m);
698 dbus_message_unref(reply);
700 dbus_error_free(&error);
705 static int list_jobs(DBusConnection *bus, char **args, unsigned n) {
706 DBusMessage *m = NULL, *reply = NULL;
709 DBusMessageIter iter, sub, sub2;
712 dbus_error_init(&error);
716 if (!(m = dbus_message_new_method_call(
717 "org.freedesktop.systemd1",
718 "/org/freedesktop/systemd1",
719 "org.freedesktop.systemd1.Manager",
721 log_error("Could not allocate message.");
725 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
726 log_error("Failed to issue method call: %s", bus_error_message(&error));
731 if (!dbus_message_iter_init(reply, &iter) ||
732 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
733 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
734 log_error("Failed to parse reply.");
739 dbus_message_iter_recurse(&iter, &sub);
741 if (isatty(STDOUT_FILENO))
742 printf("%4s %-25s %-15s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
744 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
745 const char *name, *type, *state, *job_path, *unit_path;
749 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
750 log_error("Failed to parse reply.");
755 dbus_message_iter_recurse(&sub, &sub2);
757 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
758 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
759 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
760 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
761 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
762 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
763 log_error("Failed to parse reply.");
768 e = arg_full ? NULL : ellipsize(name, 25, 33);
769 printf("%4u %-25s %-15s %-7s\n", id, e ? e : name, type, state);
774 dbus_message_iter_next(&sub);
777 if (isatty(STDOUT_FILENO))
778 printf("\n%u jobs listed.\n", k);
784 dbus_message_unref(m);
787 dbus_message_unref(reply);
789 dbus_error_free(&error);
794 static int load_unit(DBusConnection *bus, char **args, unsigned n) {
795 DBusMessage *m = NULL, *reply = NULL;
800 dbus_error_init(&error);
805 for (i = 1; i < n; i++) {
807 if (!(m = dbus_message_new_method_call(
808 "org.freedesktop.systemd1",
809 "/org/freedesktop/systemd1",
810 "org.freedesktop.systemd1.Manager",
812 log_error("Could not allocate message.");
817 if (!dbus_message_append_args(m,
818 DBUS_TYPE_STRING, &args[i],
819 DBUS_TYPE_INVALID)) {
820 log_error("Could not append arguments to message.");
825 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
826 log_error("Failed to issue method call: %s", bus_error_message(&error));
831 dbus_message_unref(m);
832 dbus_message_unref(reply);
841 dbus_message_unref(m);
844 dbus_message_unref(reply);
846 dbus_error_free(&error);
851 static int cancel_job(DBusConnection *bus, char **args, unsigned n) {
852 DBusMessage *m = NULL, *reply = NULL;
857 dbus_error_init(&error);
863 return daemon_reload(bus, args, n);
865 for (i = 1; i < n; i++) {
869 if (!(m = dbus_message_new_method_call(
870 "org.freedesktop.systemd1",
871 "/org/freedesktop/systemd1",
872 "org.freedesktop.systemd1.Manager",
874 log_error("Could not allocate message.");
879 if ((r = safe_atou(args[i], &id)) < 0) {
880 log_error("Failed to parse job id: %s", strerror(-r));
884 assert_cc(sizeof(uint32_t) == sizeof(id));
885 if (!dbus_message_append_args(m,
886 DBUS_TYPE_UINT32, &id,
887 DBUS_TYPE_INVALID)) {
888 log_error("Could not append arguments to message.");
893 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
894 log_error("Failed to issue method call: %s", bus_error_message(&error));
899 if (!dbus_message_get_args(reply, &error,
900 DBUS_TYPE_OBJECT_PATH, &path,
901 DBUS_TYPE_INVALID)) {
902 log_error("Failed to parse reply: %s", bus_error_message(&error));
907 dbus_message_unref(m);
908 if (!(m = dbus_message_new_method_call(
909 "org.freedesktop.systemd1",
911 "org.freedesktop.systemd1.Job",
913 log_error("Could not allocate message.");
918 dbus_message_unref(reply);
919 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
920 log_error("Failed to issue method call: %s", bus_error_message(&error));
925 dbus_message_unref(m);
926 dbus_message_unref(reply);
934 dbus_message_unref(m);
937 dbus_message_unref(reply);
939 dbus_error_free(&error);
944 static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
945 DBusMessage *m = NULL, *reply = NULL;
946 dbus_bool_t b = FALSE;
947 DBusMessageIter iter, sub;
949 *interface = "org.freedesktop.systemd1.Unit",
950 *property = "NeedDaemonReload",
953 /* We ignore all errors here, since this is used to show a warning only */
955 if (!(m = dbus_message_new_method_call(
956 "org.freedesktop.systemd1",
957 "/org/freedesktop/systemd1",
958 "org.freedesktop.systemd1.Manager",
962 if (!dbus_message_append_args(m,
963 DBUS_TYPE_STRING, &unit,
967 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
970 if (!dbus_message_get_args(reply, NULL,
971 DBUS_TYPE_OBJECT_PATH, &path,
975 dbus_message_unref(m);
976 if (!(m = dbus_message_new_method_call(
977 "org.freedesktop.systemd1",
979 "org.freedesktop.DBus.Properties",
983 if (!dbus_message_append_args(m,
984 DBUS_TYPE_STRING, &interface,
985 DBUS_TYPE_STRING, &property,
986 DBUS_TYPE_INVALID)) {
990 dbus_message_unref(reply);
991 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
994 if (!dbus_message_iter_init(reply, &iter) ||
995 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
998 dbus_message_iter_recurse(&iter, &sub);
1000 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
1003 dbus_message_iter_get_basic(&sub, &b);
1007 dbus_message_unref(m);
1010 dbus_message_unref(reply);
1015 typedef struct WaitData {
1020 static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
1028 dbus_error_init(&error);
1030 log_debug("Got D-Bus request: %s.%s() on %s",
1031 dbus_message_get_interface(message),
1032 dbus_message_get_member(message),
1033 dbus_message_get_path(message));
1035 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
1036 log_error("Warning! D-Bus connection terminated.");
1037 dbus_connection_close(connection);
1039 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1042 dbus_bool_t success = true;
1044 if (!dbus_message_get_args(message, &error,
1045 DBUS_TYPE_UINT32, &id,
1046 DBUS_TYPE_OBJECT_PATH, &path,
1047 DBUS_TYPE_BOOLEAN, &success,
1049 log_error("Failed to parse message: %s", bus_error_message(&error));
1053 if ((p = set_remove(d->set, (char*) path)))
1061 dbus_error_free(&error);
1062 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1065 static int enable_wait_for_jobs(DBusConnection *bus) {
1073 dbus_error_init(&error);
1074 dbus_bus_add_match(bus,
1076 "sender='org.freedesktop.systemd1',"
1077 "interface='org.freedesktop.systemd1.Manager',"
1078 "member='JobRemoved',"
1079 "path='/org/freedesktop/systemd1'",
1082 if (dbus_error_is_set(&error)) {
1083 log_error("Failed to add match: %s", bus_error_message(&error));
1084 dbus_error_free(&error);
1088 /* This is slightly dirty, since we don't undo the match registrations. */
1092 static int wait_for_jobs(DBusConnection *bus, Set *s) {
1103 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
1104 log_error("Failed to add filter.");
1109 while (!set_isempty(s) &&
1110 dbus_connection_read_write_dispatch(bus, -1))
1113 if (!arg_quiet && d.failed)
1114 log_error("Job failed, see system logs for details.");
1116 r = d.failed ? -EIO : 0;
1119 /* This is slightly dirty, since we don't undo the filter registration. */
1124 static int start_unit_one(
1125 DBusConnection *bus,
1132 DBusMessage *m = NULL, *reply = NULL;
1141 assert(arg_no_block || s);
1143 if (!(m = dbus_message_new_method_call(
1144 "org.freedesktop.systemd1",
1145 "/org/freedesktop/systemd1",
1146 "org.freedesktop.systemd1.Manager",
1148 log_error("Could not allocate message.");
1153 if (!dbus_message_append_args(m,
1154 DBUS_TYPE_STRING, &name,
1155 DBUS_TYPE_STRING, &mode,
1156 DBUS_TYPE_INVALID)) {
1157 log_error("Could not append arguments to message.");
1162 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error))) {
1164 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(error)) {
1165 /* There's always a fallback possible for
1166 * legacy actions. */
1171 log_error("Failed to issue method call: %s", bus_error_message(error));
1176 if (!dbus_message_get_args(reply, error,
1177 DBUS_TYPE_OBJECT_PATH, &path,
1178 DBUS_TYPE_INVALID)) {
1179 log_error("Failed to parse reply: %s", bus_error_message(error));
1184 if (need_daemon_reload(bus, name))
1185 log_warning("Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.",
1186 arg_session ? "--session" : "--system");
1188 if (!arg_no_block) {
1191 if (!(p = strdup(path))) {
1192 log_error("Failed to duplicate path.");
1197 if ((r = set_put(s, p)) < 0) {
1199 log_error("Failed to add path to set.");
1208 dbus_message_unref(m);
1211 dbus_message_unref(reply);
1216 static enum action verb_to_action(const char *verb) {
1217 if (streq(verb, "halt"))
1219 else if (streq(verb, "poweroff"))
1220 return ACTION_POWEROFF;
1221 else if (streq(verb, "reboot"))
1222 return ACTION_REBOOT;
1223 else if (streq(verb, "rescue"))
1224 return ACTION_RESCUE;
1225 else if (streq(verb, "emergency"))
1226 return ACTION_EMERGENCY;
1227 else if (streq(verb, "default"))
1228 return ACTION_DEFAULT;
1230 return ACTION_INVALID;
1233 static int start_unit(DBusConnection *bus, char **args, unsigned n) {
1235 static const char * const table[_ACTION_MAX] = {
1236 [ACTION_HALT] = SPECIAL_HALT_TARGET,
1237 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
1238 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
1239 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
1240 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
1241 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
1242 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
1243 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
1244 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
1245 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET
1250 const char *method, *mode, *one_name;
1254 dbus_error_init(&error);
1258 if (arg_action == ACTION_SYSTEMCTL) {
1260 streq(args[0], "stop") ? "StopUnit" :
1261 streq(args[0], "reload") ? "ReloadUnit" :
1262 streq(args[0], "restart") ? "RestartUnit" :
1263 streq(args[0], "try-restart") ||
1264 streq(args[0], "condrestart") ? "TryRestartUnit" :
1265 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
1266 streq(args[0], "reload-or-try-restart") ||
1267 streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" :
1271 (streq(args[0], "isolate") ||
1272 streq(args[0], "rescue") ||
1273 streq(args[0], "emergency")) ? "isolate" :
1277 one_name = table[verb_to_action(args[0])];
1280 assert(arg_action < ELEMENTSOF(table));
1281 assert(table[arg_action]);
1283 method = "StartUnit";
1285 mode = (arg_action == ACTION_EMERGENCY ||
1286 arg_action == ACTION_RESCUE ||
1287 arg_action == ACTION_RUNLEVEL2 ||
1288 arg_action == ACTION_RUNLEVEL3 ||
1289 arg_action == ACTION_RUNLEVEL4 ||
1290 arg_action == ACTION_RUNLEVEL5) ? "isolate" : "replace";
1292 one_name = table[arg_action];
1295 if (!arg_no_block) {
1296 if ((ret = enable_wait_for_jobs(bus)) < 0) {
1297 log_error("Could not watch jobs: %s", strerror(-ret));
1301 if (!(s = set_new(string_hash_func, string_compare_func))) {
1302 log_error("Failed to allocate set.");
1309 if ((ret = start_unit_one(bus, method, one_name, mode, &error, s)) <= 0)
1312 for (i = 1; i < n; i++)
1313 if ((r = start_unit_one(bus, method, args[i], mode, &error, s)) != 0) {
1314 ret = translate_bus_error_to_exit_status(r, &error);
1315 dbus_error_free(&error);
1320 if ((r = wait_for_jobs(bus, s)) < 0) {
1329 dbus_error_free(&error);
1334 static int start_special(DBusConnection *bus, char **args, unsigned n) {
1340 r = start_unit(bus, args, n);
1343 warn_wall(verb_to_action(args[0]));
1348 static int check_unit(DBusConnection *bus, char **args, unsigned n) {
1349 DBusMessage *m = NULL, *reply = NULL;
1351 *interface = "org.freedesktop.systemd1.Unit",
1352 *property = "ActiveState";
1353 int r = 3; /* According to LSB: "program is not running" */
1360 dbus_error_init(&error);
1362 for (i = 1; i < n; i++) {
1363 const char *path = NULL;
1365 DBusMessageIter iter, sub;
1367 if (!(m = dbus_message_new_method_call(
1368 "org.freedesktop.systemd1",
1369 "/org/freedesktop/systemd1",
1370 "org.freedesktop.systemd1.Manager",
1372 log_error("Could not allocate message.");
1377 if (!dbus_message_append_args(m,
1378 DBUS_TYPE_STRING, &args[i],
1379 DBUS_TYPE_INVALID)) {
1380 log_error("Could not append arguments to message.");
1385 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1387 /* Hmm, cannot figure out anything about this unit... */
1391 dbus_error_free(&error);
1395 if (!dbus_message_get_args(reply, &error,
1396 DBUS_TYPE_OBJECT_PATH, &path,
1397 DBUS_TYPE_INVALID)) {
1398 log_error("Failed to parse reply: %s", bus_error_message(&error));
1403 dbus_message_unref(m);
1404 if (!(m = dbus_message_new_method_call(
1405 "org.freedesktop.systemd1",
1407 "org.freedesktop.DBus.Properties",
1409 log_error("Could not allocate message.");
1414 if (!dbus_message_append_args(m,
1415 DBUS_TYPE_STRING, &interface,
1416 DBUS_TYPE_STRING, &property,
1417 DBUS_TYPE_INVALID)) {
1418 log_error("Could not append arguments to message.");
1423 dbus_message_unref(reply);
1424 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1425 log_error("Failed to issue method call: %s", bus_error_message(&error));
1430 if (!dbus_message_iter_init(reply, &iter) ||
1431 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1432 log_error("Failed to parse reply.");
1437 dbus_message_iter_recurse(&iter, &sub);
1439 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1440 log_error("Failed to parse reply.");
1445 dbus_message_iter_get_basic(&sub, &state);
1450 if (streq(state, "active") || streq(state, "reloading"))
1453 dbus_message_unref(m);
1454 dbus_message_unref(reply);
1460 dbus_message_unref(m);
1463 dbus_message_unref(reply);
1465 dbus_error_free(&error);
1470 typedef struct ExecStatusInfo {
1476 usec_t start_timestamp;
1477 usec_t exit_timestamp;
1482 LIST_FIELDS(struct ExecStatusInfo, exec);
1485 static void exec_status_info_free(ExecStatusInfo *i) {
1493 static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
1494 uint64_t start_timestamp, exit_timestamp;
1495 DBusMessageIter sub2, sub3;
1499 int32_t code, status;
1505 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
1508 dbus_message_iter_recurse(sub, &sub2);
1510 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
1513 if (!(i->path = strdup(path)))
1516 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
1517 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
1521 dbus_message_iter_recurse(&sub2, &sub3);
1522 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1523 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1524 dbus_message_iter_next(&sub3);
1529 if (!(i->argv = new0(char*, n+1)))
1533 dbus_message_iter_recurse(&sub2, &sub3);
1534 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1537 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1538 dbus_message_iter_get_basic(&sub3, &s);
1539 dbus_message_iter_next(&sub3);
1541 if (!(i->argv[n++] = strdup(s)))
1545 if (!dbus_message_iter_next(&sub2) ||
1546 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
1547 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
1548 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
1549 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
1550 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
1551 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
1555 i->start_timestamp = (usec_t) start_timestamp;
1556 i->exit_timestamp = (usec_t) exit_timestamp;
1557 i->pid = (pid_t) pid;
1564 typedef struct UnitStatusInfo {
1566 const char *load_state;
1567 const char *active_state;
1568 const char *sub_state;
1570 const char *description;
1571 const char *following;
1574 const char *default_control_group;
1576 usec_t inactive_exit_timestamp;
1577 usec_t active_enter_timestamp;
1578 usec_t active_exit_timestamp;
1579 usec_t inactive_enter_timestamp;
1581 bool need_daemon_reload;
1586 const char *status_text;
1588 #ifdef HAVE_SYSV_COMPAT
1592 usec_t start_timestamp;
1593 usec_t exit_timestamp;
1595 int exit_code, exit_status;
1598 unsigned n_accepted;
1599 unsigned n_connections;
1603 const char *sysfs_path;
1605 /* Mount, Automount */
1611 LIST_HEAD(ExecStatusInfo, exec);
1614 static void print_status_info(UnitStatusInfo *i) {
1616 const char *on, *off, *ss;
1618 char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
1619 char since2[FORMAT_TIMESTAMP_MAX], *s2;
1623 /* This shows pretty information about a unit. See
1624 * print_property() for a low-level property printer */
1626 printf("%s", strna(i->id));
1628 if (i->description && !streq_ptr(i->id, i->description))
1629 printf(" - %s", i->description);
1634 printf("\t Follow: unit currently follows state of %s\n", i->following);
1636 if (streq_ptr(i->load_state, "failed") ||
1637 streq_ptr(i->load_state, "banned")) {
1638 on = ansi_highlight(true);
1639 off = ansi_highlight(false);
1644 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, i->path);
1646 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
1648 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
1650 if (streq_ptr(i->active_state, "failed")) {
1651 on = ansi_highlight(true);
1652 off = ansi_highlight(false);
1653 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
1654 on = ansi_highlight_green(true);
1655 off = ansi_highlight_green(false);
1660 printf("\t Active: %s%s (%s)%s",
1662 strna(i->active_state),
1666 printf("\t Active: %s%s%s",
1668 strna(i->active_state),
1671 timestamp = (streq_ptr(i->active_state, "active") ||
1672 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
1673 (streq_ptr(i->active_state, "inactive") ||
1674 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
1675 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
1676 i->active_exit_timestamp;
1678 s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp);
1679 s2 = format_timestamp(since2, sizeof(since2), timestamp);
1682 printf(" since %s; %s\n", s2, s1);
1684 printf(" since %s\n", s2);
1689 printf("\t Device: %s\n", i->sysfs_path);
1691 printf("\t Where: %s\n", i->where);
1693 printf("\t What: %s\n", i->what);
1696 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
1698 LIST_FOREACH(exec, p, i->exec) {
1701 /* Only show exited processes here */
1705 t = strv_join(p->argv, " ");
1706 printf("\t Process: %u (%s, code=%s, ", p->pid, strna(t), sigchld_code_to_string(p->code));
1709 if (p->code == CLD_EXITED) {
1712 printf("status=%i", p->status);
1714 #ifdef HAVE_SYSV_COMPAT
1715 if ((c = exit_status_to_string(p->status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
1717 if ((c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD)))
1722 printf("signal=%s", signal_to_string(p->status));
1725 if (i->main_pid == p->pid &&
1726 i->start_timestamp == p->start_timestamp &&
1727 i->exit_timestamp == p->start_timestamp)
1728 /* Let's not show this twice */
1731 if (p->pid == i->control_pid)
1735 if (i->main_pid > 0 || i->control_pid > 0) {
1738 if (i->main_pid > 0) {
1739 printf("Main PID: %u", (unsigned) i->main_pid);
1743 get_process_name(i->main_pid, &t);
1748 } else if (i->exit_code > 0) {
1749 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
1751 if (i->exit_code == CLD_EXITED) {
1754 printf("status=%i", i->exit_status);
1756 #ifdef HAVE_SYSV_COMPAT
1757 if ((c = exit_status_to_string(i->exit_status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
1759 if ((c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD)))
1764 printf("signal=%s", signal_to_string(i->exit_status));
1769 if (i->main_pid > 0 && i->control_pid > 0)
1772 if (i->control_pid > 0) {
1775 printf(" Control: %u", (unsigned) i->control_pid);
1777 get_process_name(i->control_pid, &t);
1788 printf("\t Status: \"%s\"\n", i->status_text);
1790 if (i->default_control_group) {
1793 printf("\t CGroup: %s\n", i->default_control_group);
1795 if ((c = columns()) > 18)
1800 show_cgroup_by_path(i->default_control_group, "\t\t ", c);
1803 if (i->need_daemon_reload)
1804 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
1805 ansi_highlight(true),
1806 ansi_highlight(false),
1807 arg_session ? "--session" : "--system");
1810 static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
1812 switch (dbus_message_iter_get_arg_type(iter)) {
1814 case DBUS_TYPE_STRING: {
1817 dbus_message_iter_get_basic(iter, &s);
1820 if (streq(name, "Id"))
1822 else if (streq(name, "LoadState"))
1824 else if (streq(name, "ActiveState"))
1825 i->active_state = s;
1826 else if (streq(name, "SubState"))
1828 else if (streq(name, "Description"))
1830 else if (streq(name, "FragmentPath"))
1832 #ifdef HAVE_SYSV_COMPAT
1833 else if (streq(name, "SysVPath")) {
1838 else if (streq(name, "DefaultControlGroup"))
1839 i->default_control_group = s;
1840 else if (streq(name, "StatusText"))
1842 else if (streq(name, "SysFSPath"))
1844 else if (streq(name, "Where"))
1846 else if (streq(name, "What"))
1848 else if (streq(name, "Following"))
1855 case DBUS_TYPE_BOOLEAN: {
1858 dbus_message_iter_get_basic(iter, &b);
1860 if (streq(name, "Accept"))
1862 else if (streq(name, "NeedDaemonReload"))
1863 i->need_daemon_reload = b;
1868 case DBUS_TYPE_UINT32: {
1871 dbus_message_iter_get_basic(iter, &u);
1873 if (streq(name, "MainPID")) {
1875 i->main_pid = (pid_t) u;
1878 } else if (streq(name, "ControlPID"))
1879 i->control_pid = (pid_t) u;
1880 else if (streq(name, "ExecMainPID")) {
1882 i->main_pid = (pid_t) u;
1883 } else if (streq(name, "NAccepted"))
1885 else if (streq(name, "NConnections"))
1886 i->n_connections = u;
1891 case DBUS_TYPE_INT32: {
1894 dbus_message_iter_get_basic(iter, &j);
1896 if (streq(name, "ExecMainCode"))
1897 i->exit_code = (int) j;
1898 else if (streq(name, "ExecMainStatus"))
1899 i->exit_status = (int) j;
1904 case DBUS_TYPE_UINT64: {
1907 dbus_message_iter_get_basic(iter, &u);
1909 if (streq(name, "ExecMainStartTimestamp"))
1910 i->start_timestamp = (usec_t) u;
1911 else if (streq(name, "ExecMainExitTimestamp"))
1912 i->exit_timestamp = (usec_t) u;
1913 else if (streq(name, "ActiveEnterTimestamp"))
1914 i->active_enter_timestamp = (usec_t) u;
1915 else if (streq(name, "InactiveEnterTimestamp"))
1916 i->inactive_enter_timestamp = (usec_t) u;
1917 else if (streq(name, "InactiveExitTimestamp"))
1918 i->inactive_exit_timestamp = (usec_t) u;
1919 else if (streq(name, "ActiveExitTimestamp"))
1920 i->active_exit_timestamp = (usec_t) u;
1925 case DBUS_TYPE_ARRAY: {
1927 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
1928 startswith(name, "Exec")) {
1929 DBusMessageIter sub;
1931 dbus_message_iter_recurse(iter, &sub);
1932 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
1933 ExecStatusInfo *info;
1936 if (!(info = new0(ExecStatusInfo, 1)))
1939 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
1944 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
1946 dbus_message_iter_next(&sub);
1957 static int print_property(const char *name, DBusMessageIter *iter) {
1961 /* This is a low-level property printer, see
1962 * print_status_info() for the nicer output */
1964 if (arg_property && !strv_find(arg_property, name))
1967 switch (dbus_message_iter_get_arg_type(iter)) {
1969 case DBUS_TYPE_STRING: {
1971 dbus_message_iter_get_basic(iter, &s);
1973 if (arg_all || s[0])
1974 printf("%s=%s\n", name, s);
1979 case DBUS_TYPE_BOOLEAN: {
1981 dbus_message_iter_get_basic(iter, &b);
1982 printf("%s=%s\n", name, yes_no(b));
1987 case DBUS_TYPE_UINT64: {
1989 dbus_message_iter_get_basic(iter, &u);
1991 /* Yes, heuristics! But we can change this check
1992 * should it turn out to not be sufficient */
1994 if (strstr(name, "Timestamp")) {
1995 char timestamp[FORMAT_TIMESTAMP_MAX], *t;
1997 if ((t = format_timestamp(timestamp, sizeof(timestamp), u)) || arg_all)
1998 printf("%s=%s\n", name, strempty(t));
1999 } else if (strstr(name, "USec")) {
2000 char timespan[FORMAT_TIMESPAN_MAX];
2002 printf("%s=%s\n", name, format_timespan(timespan, sizeof(timespan), u));
2004 printf("%s=%llu\n", name, (unsigned long long) u);
2009 case DBUS_TYPE_UINT32: {
2011 dbus_message_iter_get_basic(iter, &u);
2013 if (strstr(name, "UMask") || strstr(name, "Mode"))
2014 printf("%s=%04o\n", name, u);
2016 printf("%s=%u\n", name, (unsigned) u);
2021 case DBUS_TYPE_INT32: {
2023 dbus_message_iter_get_basic(iter, &i);
2025 printf("%s=%i\n", name, (int) i);
2029 case DBUS_TYPE_DOUBLE: {
2031 dbus_message_iter_get_basic(iter, &d);
2033 printf("%s=%g\n", name, d);
2037 case DBUS_TYPE_STRUCT: {
2038 DBusMessageIter sub;
2039 dbus_message_iter_recurse(iter, &sub);
2041 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
2044 dbus_message_iter_get_basic(&sub, &u);
2047 printf("%s=%u\n", name, (unsigned) u);
2049 printf("%s=\n", name);
2052 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
2055 dbus_message_iter_get_basic(&sub, &s);
2057 if (arg_all || s[0])
2058 printf("%s=%s\n", name, s);
2066 case DBUS_TYPE_ARRAY:
2068 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
2069 DBusMessageIter sub;
2072 dbus_message_iter_recurse(iter, &sub);
2074 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2075 printf("%s=", name);
2077 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2080 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
2081 dbus_message_iter_get_basic(&sub, &s);
2082 printf("%s%s", space ? " " : "", s);
2085 dbus_message_iter_next(&sub);
2093 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_BYTE) {
2094 DBusMessageIter sub;
2096 dbus_message_iter_recurse(iter, &sub);
2098 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2099 printf("%s=", name);
2101 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2104 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_BYTE);
2105 dbus_message_iter_get_basic(&sub, &u);
2108 dbus_message_iter_next(&sub);
2116 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2117 DBusMessageIter sub, sub2;
2119 dbus_message_iter_recurse(iter, &sub);
2120 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2121 const char *type, *path;
2123 dbus_message_iter_recurse(&sub, &sub2);
2125 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2126 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2127 printf("%s=%s\n", type, path);
2129 dbus_message_iter_next(&sub);
2134 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2135 DBusMessageIter sub, sub2;
2137 dbus_message_iter_recurse(iter, &sub);
2138 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2140 uint64_t value, next_elapse;
2142 dbus_message_iter_recurse(&sub, &sub2);
2144 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
2145 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
2146 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
2147 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
2149 printf("%s={ value=%s ; next_elapse=%s }\n",
2151 format_timespan(timespan1, sizeof(timespan1), value),
2152 format_timespan(timespan2, sizeof(timespan2), next_elapse));
2155 dbus_message_iter_next(&sub);
2160 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
2161 DBusMessageIter sub;
2163 dbus_message_iter_recurse(iter, &sub);
2164 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2165 ExecStatusInfo info;
2168 if (exec_status_info_deserialize(&sub, &info) >= 0) {
2169 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
2172 t = strv_join(info.argv, " ");
2174 printf("%s={ path=%s ; argv[]=%s ; ignore=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
2178 yes_no(info.ignore),
2179 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
2180 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
2181 (unsigned) info. pid,
2182 sigchld_code_to_string(info.code),
2184 info.code == CLD_EXITED ? "" : "/",
2185 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
2191 strv_free(info.argv);
2193 dbus_message_iter_next(&sub);
2203 printf("%s=[unprintable]\n", name);
2208 static int show_one(DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
2209 DBusMessage *m = NULL, *reply = NULL;
2210 const char *interface = "";
2213 DBusMessageIter iter, sub, sub2, sub3;
2214 UnitStatusInfo info;
2222 dbus_error_init(&error);
2224 if (!(m = dbus_message_new_method_call(
2225 "org.freedesktop.systemd1",
2227 "org.freedesktop.DBus.Properties",
2229 log_error("Could not allocate message.");
2234 if (!dbus_message_append_args(m,
2235 DBUS_TYPE_STRING, &interface,
2236 DBUS_TYPE_INVALID)) {
2237 log_error("Could not append arguments to message.");
2242 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2243 log_error("Failed to issue method call: %s", bus_error_message(&error));
2248 if (!dbus_message_iter_init(reply, &iter) ||
2249 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
2250 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
2251 log_error("Failed to parse reply.");
2256 dbus_message_iter_recurse(&iter, &sub);
2263 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2266 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
2267 log_error("Failed to parse reply.");
2272 dbus_message_iter_recurse(&sub, &sub2);
2274 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
2275 log_error("Failed to parse reply.");
2280 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
2281 log_error("Failed to parse reply.");
2286 dbus_message_iter_recurse(&sub2, &sub3);
2288 if (show_properties)
2289 r = print_property(name, &sub3);
2291 r = status_property(name, &sub3, &info);
2294 log_error("Failed to parse reply.");
2299 dbus_message_iter_next(&sub);
2304 if (!show_properties)
2305 print_status_info(&info);
2307 if (!streq_ptr(info.active_state, "active") &&
2308 !streq_ptr(info.active_state, "reloading"))
2309 /* According to LSB: "program not running" */
2312 while ((p = info.exec)) {
2313 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
2314 exec_status_info_free(p);
2319 dbus_message_unref(m);
2322 dbus_message_unref(reply);
2324 dbus_error_free(&error);
2329 static int show(DBusConnection *bus, char **args, unsigned n) {
2330 DBusMessage *m = NULL, *reply = NULL;
2334 bool show_properties, new_line = false;
2339 dbus_error_init(&error);
2341 show_properties = !streq(args[0], "status");
2343 if (show_properties && n <= 1) {
2344 /* If not argument is specified inspect the manager
2347 ret = show_one(bus, "/org/freedesktop/systemd1", show_properties, &new_line);
2351 for (i = 1; i < n; i++) {
2352 const char *path = NULL;
2355 if (safe_atou32(args[i], &id) < 0) {
2357 /* Interpret as unit name */
2359 if (!(m = dbus_message_new_method_call(
2360 "org.freedesktop.systemd1",
2361 "/org/freedesktop/systemd1",
2362 "org.freedesktop.systemd1.Manager",
2364 log_error("Could not allocate message.");
2369 if (!dbus_message_append_args(m,
2370 DBUS_TYPE_STRING, &args[i],
2371 DBUS_TYPE_INVALID)) {
2372 log_error("Could not append arguments to message.");
2377 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2379 if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
2380 log_error("Failed to issue method call: %s", bus_error_message(&error));
2385 dbus_error_free(&error);
2387 dbus_message_unref(m);
2388 if (!(m = dbus_message_new_method_call(
2389 "org.freedesktop.systemd1",
2390 "/org/freedesktop/systemd1",
2391 "org.freedesktop.systemd1.Manager",
2393 log_error("Could not allocate message.");
2398 if (!dbus_message_append_args(m,
2399 DBUS_TYPE_STRING, &args[i],
2400 DBUS_TYPE_INVALID)) {
2401 log_error("Could not append arguments to message.");
2406 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2407 log_error("Failed to issue method call: %s", bus_error_message(&error));
2409 if (dbus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT))
2410 ret = 4; /* According to LSB: "program or service status is unknown" */
2417 } else if (show_properties) {
2419 /* Interpret as job id */
2421 if (!(m = dbus_message_new_method_call(
2422 "org.freedesktop.systemd1",
2423 "/org/freedesktop/systemd1",
2424 "org.freedesktop.systemd1.Manager",
2426 log_error("Could not allocate message.");
2431 if (!dbus_message_append_args(m,
2432 DBUS_TYPE_UINT32, &id,
2433 DBUS_TYPE_INVALID)) {
2434 log_error("Could not append arguments to message.");
2439 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2440 log_error("Failed to issue method call: %s", bus_error_message(&error));
2446 /* Interpret as PID */
2448 if (!(m = dbus_message_new_method_call(
2449 "org.freedesktop.systemd1",
2450 "/org/freedesktop/systemd1",
2451 "org.freedesktop.systemd1.Manager",
2453 log_error("Could not allocate message.");
2458 if (!dbus_message_append_args(m,
2459 DBUS_TYPE_UINT32, &id,
2460 DBUS_TYPE_INVALID)) {
2461 log_error("Could not append arguments to message.");
2466 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2467 log_error("Failed to issue method call: %s", bus_error_message(&error));
2473 if (!dbus_message_get_args(reply, &error,
2474 DBUS_TYPE_OBJECT_PATH, &path,
2475 DBUS_TYPE_INVALID)) {
2476 log_error("Failed to parse reply: %s", bus_error_message(&error));
2481 if ((r = show_one(bus, path, show_properties, &new_line)) != 0)
2484 dbus_message_unref(m);
2485 dbus_message_unref(reply);
2491 dbus_message_unref(m);
2494 dbus_message_unref(reply);
2496 dbus_error_free(&error);
2501 static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) {
2503 DBusMessage *m = NULL, *reply = NULL;
2508 dbus_error_init(&error);
2510 log_debug("Got D-Bus request: %s.%s() on %s",
2511 dbus_message_get_interface(message),
2512 dbus_message_get_member(message),
2513 dbus_message_get_path(message));
2515 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
2516 log_error("Warning! D-Bus connection terminated.");
2517 dbus_connection_close(connection);
2519 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitNew") ||
2520 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitRemoved")) {
2521 const char *id, *path;
2523 if (!dbus_message_get_args(message, &error,
2524 DBUS_TYPE_STRING, &id,
2525 DBUS_TYPE_OBJECT_PATH, &path,
2527 log_error("Failed to parse message: %s", bus_error_message(&error));
2528 else if (streq(dbus_message_get_member(message), "UnitNew"))
2529 printf("Unit %s added.\n", id);
2531 printf("Unit %s removed.\n", id);
2533 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew") ||
2534 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
2538 if (!dbus_message_get_args(message, &error,
2539 DBUS_TYPE_UINT32, &id,
2540 DBUS_TYPE_OBJECT_PATH, &path,
2542 log_error("Failed to parse message: %s", bus_error_message(&error));
2543 else if (streq(dbus_message_get_member(message), "JobNew"))
2544 printf("Job %u added.\n", id);
2546 printf("Job %u removed.\n", id);
2549 } else if (dbus_message_is_signal(message, "org.freedesktop.DBus.Properties", "PropertiesChanged")) {
2551 const char *path, *interface, *property = "Id";
2552 DBusMessageIter iter, sub;
2554 path = dbus_message_get_path(message);
2556 if (!dbus_message_get_args(message, &error,
2557 DBUS_TYPE_STRING, &interface,
2558 DBUS_TYPE_INVALID)) {
2559 log_error("Failed to parse message: %s", bus_error_message(&error));
2563 if (!streq(interface, "org.freedesktop.systemd1.Job") &&
2564 !streq(interface, "org.freedesktop.systemd1.Unit"))
2567 if (!(m = dbus_message_new_method_call(
2568 "org.freedesktop.systemd1",
2570 "org.freedesktop.DBus.Properties",
2572 log_error("Could not allocate message.");
2576 if (!dbus_message_append_args(m,
2577 DBUS_TYPE_STRING, &interface,
2578 DBUS_TYPE_STRING, &property,
2579 DBUS_TYPE_INVALID)) {
2580 log_error("Could not append arguments to message.");
2584 if (!(reply = dbus_connection_send_with_reply_and_block(connection, m, -1, &error))) {
2585 log_error("Failed to issue method call: %s", bus_error_message(&error));
2589 if (!dbus_message_iter_init(reply, &iter) ||
2590 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2591 log_error("Failed to parse reply.");
2595 dbus_message_iter_recurse(&iter, &sub);
2597 if (streq(interface, "org.freedesktop.systemd1.Unit")) {
2600 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2601 log_error("Failed to parse reply.");
2605 dbus_message_iter_get_basic(&sub, &id);
2606 printf("Unit %s changed.\n", id);
2610 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT32) {
2611 log_error("Failed to parse reply.");
2615 dbus_message_iter_get_basic(&sub, &id);
2616 printf("Job %u changed.\n", id);
2622 dbus_message_unref(m);
2625 dbus_message_unref(reply);
2627 dbus_error_free(&error);
2628 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2632 dbus_message_unref(m);
2635 dbus_message_unref(reply);
2637 dbus_error_free(&error);
2638 return DBUS_HANDLER_RESULT_NEED_MEMORY;
2641 static int monitor(DBusConnection *bus, char **args, unsigned n) {
2642 DBusMessage *m = NULL, *reply = NULL;
2646 dbus_error_init(&error);
2649 dbus_bus_add_match(bus,
2651 "sender='org.freedesktop.systemd1',"
2652 "interface='org.freedesktop.systemd1.Manager',"
2653 "path='/org/freedesktop/systemd1'",
2656 if (dbus_error_is_set(&error)) {
2657 log_error("Failed to add match: %s", bus_error_message(&error));
2662 dbus_bus_add_match(bus,
2664 "sender='org.freedesktop.systemd1',"
2665 "interface='org.freedesktop.DBus.Properties',"
2666 "member='PropertiesChanged'",
2669 if (dbus_error_is_set(&error)) {
2670 log_error("Failed to add match: %s", bus_error_message(&error));
2676 if (!dbus_connection_add_filter(bus, monitor_filter, NULL, NULL)) {
2677 log_error("Failed to add filter.");
2682 if (!(m = dbus_message_new_method_call(
2683 "org.freedesktop.systemd1",
2684 "/org/freedesktop/systemd1",
2685 "org.freedesktop.systemd1.Manager",
2687 log_error("Could not allocate message.");
2692 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2693 log_error("Failed to issue method call: %s", bus_error_message(&error));
2698 while (dbus_connection_read_write_dispatch(bus, -1))
2705 /* This is slightly dirty, since we don't undo the filter or the matches. */
2708 dbus_message_unref(m);
2711 dbus_message_unref(reply);
2713 dbus_error_free(&error);
2718 static int dump(DBusConnection *bus, char **args, unsigned n) {
2719 DBusMessage *m = NULL, *reply = NULL;
2724 dbus_error_init(&error);
2726 if (!(m = dbus_message_new_method_call(
2727 "org.freedesktop.systemd1",
2728 "/org/freedesktop/systemd1",
2729 "org.freedesktop.systemd1.Manager",
2731 log_error("Could not allocate message.");
2735 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2736 log_error("Failed to issue method call: %s", bus_error_message(&error));
2741 if (!dbus_message_get_args(reply, &error,
2742 DBUS_TYPE_STRING, &text,
2743 DBUS_TYPE_INVALID)) {
2744 log_error("Failed to parse reply: %s", bus_error_message(&error));
2749 fputs(text, stdout);
2755 dbus_message_unref(m);
2758 dbus_message_unref(reply);
2760 dbus_error_free(&error);
2765 static int snapshot(DBusConnection *bus, char **args, unsigned n) {
2766 DBusMessage *m = NULL, *reply = NULL;
2769 const char *name = "", *path, *id;
2770 dbus_bool_t cleanup = FALSE;
2771 DBusMessageIter iter, sub;
2773 *interface = "org.freedesktop.systemd1.Unit",
2776 dbus_error_init(&error);
2778 if (!(m = dbus_message_new_method_call(
2779 "org.freedesktop.systemd1",
2780 "/org/freedesktop/systemd1",
2781 "org.freedesktop.systemd1.Manager",
2782 "CreateSnapshot"))) {
2783 log_error("Could not allocate message.");
2790 if (!dbus_message_append_args(m,
2791 DBUS_TYPE_STRING, &name,
2792 DBUS_TYPE_BOOLEAN, &cleanup,
2793 DBUS_TYPE_INVALID)) {
2794 log_error("Could not append arguments to message.");
2799 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2800 log_error("Failed to issue method call: %s", bus_error_message(&error));
2805 if (!dbus_message_get_args(reply, &error,
2806 DBUS_TYPE_OBJECT_PATH, &path,
2807 DBUS_TYPE_INVALID)) {
2808 log_error("Failed to parse reply: %s", bus_error_message(&error));
2813 dbus_message_unref(m);
2814 if (!(m = dbus_message_new_method_call(
2815 "org.freedesktop.systemd1",
2817 "org.freedesktop.DBus.Properties",
2819 log_error("Could not allocate message.");
2823 if (!dbus_message_append_args(m,
2824 DBUS_TYPE_STRING, &interface,
2825 DBUS_TYPE_STRING, &property,
2826 DBUS_TYPE_INVALID)) {
2827 log_error("Could not append arguments to message.");
2832 dbus_message_unref(reply);
2833 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2834 log_error("Failed to issue method call: %s", bus_error_message(&error));
2839 if (!dbus_message_iter_init(reply, &iter) ||
2840 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2841 log_error("Failed to parse reply.");
2846 dbus_message_iter_recurse(&iter, &sub);
2848 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2849 log_error("Failed to parse reply.");
2854 dbus_message_iter_get_basic(&sub, &id);
2862 dbus_message_unref(m);
2865 dbus_message_unref(reply);
2867 dbus_error_free(&error);
2872 static int delete_snapshot(DBusConnection *bus, char **args, unsigned n) {
2873 DBusMessage *m = NULL, *reply = NULL;
2881 dbus_error_init(&error);
2883 for (i = 1; i < n; i++) {
2884 const char *path = NULL;
2886 if (!(m = dbus_message_new_method_call(
2887 "org.freedesktop.systemd1",
2888 "/org/freedesktop/systemd1",
2889 "org.freedesktop.systemd1.Manager",
2891 log_error("Could not allocate message.");
2896 if (!dbus_message_append_args(m,
2897 DBUS_TYPE_STRING, &args[i],
2898 DBUS_TYPE_INVALID)) {
2899 log_error("Could not append arguments to message.");
2904 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2905 log_error("Failed to issue method call: %s", bus_error_message(&error));
2910 if (!dbus_message_get_args(reply, &error,
2911 DBUS_TYPE_OBJECT_PATH, &path,
2912 DBUS_TYPE_INVALID)) {
2913 log_error("Failed to parse reply: %s", bus_error_message(&error));
2918 dbus_message_unref(m);
2919 if (!(m = dbus_message_new_method_call(
2920 "org.freedesktop.systemd1",
2922 "org.freedesktop.systemd1.Snapshot",
2924 log_error("Could not allocate message.");
2929 dbus_message_unref(reply);
2930 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2931 log_error("Failed to issue method call: %s", bus_error_message(&error));
2936 dbus_message_unref(m);
2937 dbus_message_unref(reply);
2945 dbus_message_unref(m);
2948 dbus_message_unref(reply);
2950 dbus_error_free(&error);
2955 static int daemon_reload(DBusConnection *bus, char **args, unsigned n) {
2956 DBusMessage *m = NULL, *reply = NULL;
2961 dbus_error_init(&error);
2963 if (arg_action == ACTION_RELOAD)
2965 else if (arg_action == ACTION_REEXEC)
2966 method = "Reexecute";
2968 assert(arg_action == ACTION_SYSTEMCTL);
2971 streq(args[0], "clear-jobs") ||
2972 streq(args[0], "cancel") ? "ClearJobs" :
2973 streq(args[0], "daemon-reexec") ? "Reexecute" :
2974 streq(args[0], "reset-failed") ? "ResetFailed" :
2975 streq(args[0], "daemon-exit") ? "Exit" :
2979 if (!(m = dbus_message_new_method_call(
2980 "org.freedesktop.systemd1",
2981 "/org/freedesktop/systemd1",
2982 "org.freedesktop.systemd1.Manager",
2984 log_error("Could not allocate message.");
2988 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2990 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
2991 /* There's always a fallback possible for
2992 * legacy actions. */
2997 log_error("Failed to issue method call: %s", bus_error_message(&error));
3006 dbus_message_unref(m);
3009 dbus_message_unref(reply);
3011 dbus_error_free(&error);
3016 static int reset_failed(DBusConnection *bus, char **args, unsigned n) {
3017 DBusMessage *m = NULL, *reply = NULL;
3023 dbus_error_init(&error);
3026 return daemon_reload(bus, args, n);
3028 for (i = 1; i < n; i++) {
3030 if (!(m = dbus_message_new_method_call(
3031 "org.freedesktop.systemd1",
3032 "/org/freedesktop/systemd1",
3033 "org.freedesktop.systemd1.Manager",
3034 "ResetFailedUnit"))) {
3035 log_error("Could not allocate message.");
3040 if (!dbus_message_append_args(m,
3041 DBUS_TYPE_STRING, args + i,
3042 DBUS_TYPE_INVALID)) {
3043 log_error("Could not append arguments to message.");
3048 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3049 log_error("Failed to issue method call: %s", bus_error_message(&error));
3054 dbus_message_unref(m);
3055 dbus_message_unref(reply);
3063 dbus_message_unref(m);
3066 dbus_message_unref(reply);
3068 dbus_error_free(&error);
3073 static int show_enviroment(DBusConnection *bus, char **args, unsigned n) {
3074 DBusMessage *m = NULL, *reply = NULL;
3076 DBusMessageIter iter, sub, sub2;
3079 *interface = "org.freedesktop.systemd1.Manager",
3080 *property = "Environment";
3082 dbus_error_init(&error);
3084 if (!(m = dbus_message_new_method_call(
3085 "org.freedesktop.systemd1",
3086 "/org/freedesktop/systemd1",
3087 "org.freedesktop.DBus.Properties",
3089 log_error("Could not allocate message.");
3093 if (!dbus_message_append_args(m,
3094 DBUS_TYPE_STRING, &interface,
3095 DBUS_TYPE_STRING, &property,
3096 DBUS_TYPE_INVALID)) {
3097 log_error("Could not append arguments to message.");
3102 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3103 log_error("Failed to issue method call: %s", bus_error_message(&error));
3108 if (!dbus_message_iter_init(reply, &iter) ||
3109 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3110 log_error("Failed to parse reply.");
3115 dbus_message_iter_recurse(&iter, &sub);
3117 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3118 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3119 log_error("Failed to parse reply.");
3124 dbus_message_iter_recurse(&sub, &sub2);
3126 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3129 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3130 log_error("Failed to parse reply.");
3135 dbus_message_iter_get_basic(&sub2, &text);
3136 printf("%s\n", text);
3138 dbus_message_iter_next(&sub2);
3145 dbus_message_unref(m);
3148 dbus_message_unref(reply);
3150 dbus_error_free(&error);
3155 static int set_environment(DBusConnection *bus, char **args, unsigned n) {
3156 DBusMessage *m = NULL, *reply = NULL;
3160 DBusMessageIter iter, sub;
3163 dbus_error_init(&error);
3165 method = streq(args[0], "set-environment")
3167 : "UnsetEnvironment";
3169 if (!(m = dbus_message_new_method_call(
3170 "org.freedesktop.systemd1",
3171 "/org/freedesktop/systemd1",
3172 "org.freedesktop.systemd1.Manager",
3175 log_error("Could not allocate message.");
3179 dbus_message_iter_init_append(m, &iter);
3181 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
3182 log_error("Could not append arguments to message.");
3187 for (i = 1; i < n; i++)
3188 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &args[i])) {
3189 log_error("Could not append arguments to message.");
3194 if (!dbus_message_iter_close_container(&iter, &sub)) {
3195 log_error("Could not append arguments to message.");
3200 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3201 log_error("Failed to issue method call: %s", bus_error_message(&error));
3210 dbus_message_unref(m);
3213 dbus_message_unref(reply);
3215 dbus_error_free(&error);
3228 static Hashmap *will_install = NULL, *have_installed = NULL;
3229 static Set *remove_symlinks_to = NULL;
3230 static unsigned n_symlinks = 0;
3232 static void install_info_free(InstallInfo *i) {
3237 strv_free(i->aliases);
3238 strv_free(i->wanted_by);
3242 static void install_info_hashmap_free(Hashmap *m) {
3245 while ((i = hashmap_steal_first(m)))
3246 install_info_free(i);
3251 static int install_info_add(const char *name) {
3255 assert(will_install);
3257 if (!unit_name_is_valid_no_type(name, true)) {
3258 log_warning("Unit name %s is not a valid unit name.", name);
3262 if (hashmap_get(have_installed, name) ||
3263 hashmap_get(will_install, name))
3266 if (!(i = new0(InstallInfo, 1))) {
3271 if (!(i->name = strdup(name))) {
3276 if ((r = hashmap_put(will_install, i->name, i)) < 0)
3283 install_info_free(i);
3288 static int config_parse_also(
3289 const char *filename,
3291 const char *section,
3305 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
3309 if (!(n = strndup(w, l)))
3312 if ((r = install_info_add(n)) < 0) {
3313 log_warning("Cannot install unit %s: %s", n, strerror(-r));
3324 static int mark_symlink_for_removal(const char *p) {
3329 assert(path_is_absolute(p));
3331 if (!remove_symlinks_to)
3334 if (!(n = strdup(p)))
3337 path_kill_slashes(n);
3339 if ((r = set_put(remove_symlinks_to, n)) < 0) {
3341 return r == -EEXIST ? 0 : r;
3347 static int remove_marked_symlinks_fd(int fd, const char *config_path, const char *root, bool *deleted) {
3356 if (!(d = fdopendir(fd))) {
3357 close_nointr_nofail(fd);
3363 while ((de = readdir(d))) {
3364 bool is_dir = false, is_link = false;
3366 if (ignore_file(de->d_name))
3369 if (de->d_type == DT_LNK)
3371 else if (de->d_type == DT_DIR)
3373 else if (de->d_type == DT_UNKNOWN) {
3376 if (fstatat(fd, de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) {
3377 log_error("Failed to stat %s/%s: %m", root, de->d_name);
3384 is_link = S_ISLNK(st.st_mode);
3385 is_dir = S_ISDIR(st.st_mode);
3393 if ((nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0) {
3394 log_error("Failed to open %s/%s: %m", root, de->d_name);
3401 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3402 log_error("Failed to allocate directory string.");
3403 close_nointr_nofail(nfd);
3408 /* This will close nfd, regardless whether it succeeds or not */
3409 q = remove_marked_symlinks_fd(nfd, config_path, p, deleted);
3415 } else if (is_link) {
3419 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3420 log_error("Failed to allocate symlink string.");
3425 if ((q = readlink_and_make_absolute(p, &dest)) < 0) {
3426 log_error("Cannot read symlink %s: %s", p, strerror(-q));
3434 if ((c = canonicalize_file_name(dest))) {
3435 /* This might fail if the destination
3436 * is already removed */
3442 path_kill_slashes(dest);
3443 if (set_get(remove_symlinks_to, dest)) {
3446 log_info("rm '%s'", p);
3448 if (unlink(p) < 0) {
3449 log_error("Cannot unlink symlink %s: %m", p);
3454 rmdir_parents(p, config_path);
3455 path_kill_slashes(p);
3457 if (!set_get(remove_symlinks_to, p)) {
3459 if ((r = mark_symlink_for_removal(p)) < 0) {
3478 static int remove_marked_symlinks(const char *config_path) {
3482 assert(config_path);
3484 if (set_size(remove_symlinks_to) <= 0)
3487 if ((fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0)
3494 if ((cfd = dup(fd)) < 0) {
3499 /* This takes possession of cfd and closes it */
3500 if ((q = remove_marked_symlinks_fd(cfd, config_path, config_path, &deleted)) < 0) {
3506 close_nointr_nofail(fd);
3511 static int create_symlink(const char *verb, const char *old_path, const char *new_path) {
3518 if (streq(verb, "enable")) {
3521 mkdir_parents(new_path, 0755);
3523 if (symlink(old_path, new_path) >= 0) {
3526 log_info("ln -s '%s' '%s'", old_path, new_path);
3531 if (errno != EEXIST) {
3532 log_error("Cannot link %s to %s: %m", old_path, new_path);
3536 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3538 if (errno == EINVAL) {
3539 log_error("Cannot link %s to %s, file exists already and is not a symlink.", old_path, new_path);
3543 log_error("readlink() failed: %s", strerror(-r));
3547 if (streq(dest, old_path)) {
3553 log_error("Cannot link %s to %s, symlink exists already and points to %s.", old_path, new_path, dest);
3562 log_info("ln -s '%s' '%s'", old_path, new_path);
3564 if (symlink(old_path, new_path) >= 0)
3567 log_error("Cannot link %s to %s: %m", old_path, new_path);
3570 } else if (streq(verb, "disable")) {
3573 if ((r = mark_symlink_for_removal(old_path)) < 0)
3576 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3577 if (errno == ENOENT)
3580 if (errno == EINVAL) {
3581 log_warning("File %s not a symlink, ignoring.", old_path);
3585 log_error("readlink() failed: %s", strerror(-r));
3589 if (!streq(dest, old_path)) {
3590 log_warning("File %s not a symlink to %s but points to %s, ignoring.", new_path, old_path, dest);
3597 if ((r = mark_symlink_for_removal(new_path)) < 0)
3601 log_info("rm '%s'", new_path);
3603 if (unlink(new_path) >= 0)
3606 log_error("Cannot unlink %s: %m", new_path);
3609 } else if (streq(verb, "is-enabled")) {
3612 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3614 if (errno == ENOENT || errno == EINVAL)
3617 log_error("readlink() failed: %s", strerror(-r));
3621 if (streq(dest, old_path)) {
3629 assert_not_reached("Unknown action.");
3632 static int install_info_symlink_alias(const char *verb, InstallInfo *i, const char *config_path) {
3634 char *alias_path = NULL;
3639 assert(config_path);
3641 STRV_FOREACH(s, i->aliases) {
3644 if (!(alias_path = path_make_absolute(*s, config_path))) {
3645 log_error("Out of memory");
3650 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3653 if (streq(verb, "disable"))
3654 rmdir_parents(alias_path, config_path);
3664 static int install_info_symlink_wants(const char *verb, InstallInfo *i, const char *config_path) {
3666 char *alias_path = NULL;
3671 assert(config_path);
3673 STRV_FOREACH(s, i->wanted_by) {
3674 if (!unit_name_is_valid_no_type(*s, true)) {
3675 log_error("Invalid name %s.", *s);
3683 if (asprintf(&alias_path, "%s/%s.wants/%s", config_path, *s, i->name) < 0) {
3684 log_error("Out of memory");
3689 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3692 if (streq(verb, "disable"))
3693 rmdir_parents(alias_path, config_path);
3704 static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo *i, const char *config_path) {
3706 const ConfigItem items[] = {
3707 { "Alias", config_parse_strv, &i->aliases, "Install" },
3708 { "WantedBy", config_parse_strv, &i->wanted_by, "Install" },
3709 { "Also", config_parse_also, NULL, "Install" },
3711 { NULL, NULL, NULL, NULL }
3715 char *filename = NULL;
3722 STRV_FOREACH(p, paths->unit_path) {
3725 if (!(filename = path_make_absolute(i->name, *p))) {
3726 log_error("Out of memory");
3730 /* Ensure that we don't follow symlinks */
3731 if ((fd = open(filename, O_RDONLY|O_CLOEXEC|O_NOFOLLOW|O_NOCTTY)) >= 0)
3732 if ((f = fdopen(fd, "re")))
3735 if (errno == ELOOP) {
3736 log_error("Refusing to operate on symlinks, please pass unit names or absolute paths to unit files.");
3741 if (errno != ENOENT) {
3742 log_error("Failed to open %s: %m", filename);
3752 log_error("Couldn't find %s.", i->name);
3758 if ((r = config_parse(filename, f, NULL, items, true, i)) < 0) {
3763 n_symlinks += strv_length(i->aliases);
3764 n_symlinks += strv_length(i->wanted_by);
3768 if ((r = install_info_symlink_alias(verb, i, config_path)) != 0)
3771 if ((r = install_info_symlink_wants(verb, i, config_path)) != 0)
3774 if ((r = mark_symlink_for_removal(filename)) < 0)
3777 if ((r = remove_marked_symlinks(config_path)) < 0)
3783 static char *get_config_path(void) {
3785 if (arg_session && arg_global)
3786 return strdup(SESSION_CONFIG_UNIT_PATH);
3791 if (session_config_home(&p) < 0)
3797 return strdup(SYSTEM_CONFIG_UNIT_PATH);
3800 static int enable_unit(DBusConnection *bus, char **args, unsigned n) {
3804 char *config_path = NULL;
3807 const char *verb = args[0];
3809 dbus_error_init(&error);
3812 if ((r = lookup_paths_init(&paths, arg_session ? MANAGER_SESSION : MANAGER_SYSTEM)) < 0) {
3813 log_error("Failed to determine lookup paths: %s", strerror(-r));
3817 if (!(config_path = get_config_path())) {
3818 log_error("Failed to determine config path");
3823 will_install = hashmap_new(string_hash_func, string_compare_func);
3824 have_installed = hashmap_new(string_hash_func, string_compare_func);
3826 if (!will_install || !have_installed) {
3827 log_error("Failed to allocate unit sets.");
3832 if (!arg_defaults && streq(verb, "disable"))
3833 if (!(remove_symlinks_to = set_new(string_hash_func, string_compare_func))) {
3834 log_error("Failed to allocate symlink sets.");
3839 for (j = 1; j < n; j++)
3840 if ((r = install_info_add(args[j])) < 0) {
3841 log_warning("Cannot install unit %s: %s", args[j], strerror(-r));
3845 while ((i = hashmap_first(will_install))) {
3848 assert_se(hashmap_move_one(have_installed, will_install, i->name) == 0);
3850 if ((q = install_info_apply(verb, &paths, i, config_path)) != 0) {
3858 /* In test mode and found something */
3864 if (streq(verb, "is-enabled"))
3865 r = r > 0 ? 0 : -ENOENT;
3867 if (n_symlinks <= 0)
3868 log_warning("Unit files contain no applicable installation information. Ignoring.");
3871 /* Don't try to reload anything if the user asked us to not do this */
3873 /* Don't try to reload anything when updating a unit globally */
3875 /* Don't try to reload anything if we are called for system changes but the system wasn't booted with systemd */
3876 (arg_session || sd_booted() > 0) &&
3877 /* Don't try to reload anything if we are running in a chroot environment */
3878 (arg_session || running_in_chroot() <= 0) ) {
3881 if ((q = daemon_reload(bus, args, n)) < 0)
3887 install_info_hashmap_free(will_install);
3888 install_info_hashmap_free(have_installed);
3890 set_free_free(remove_symlinks_to);
3892 lookup_paths_free(&paths);
3899 static int systemctl_help(void) {
3901 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
3902 "Send control commands to or query the systemd manager.\n\n"
3903 " -h --help Show this help\n"
3904 " --version Show package version\n"
3905 " -t --type=TYPE List only units of a particular type\n"
3906 " -p --property=NAME Show only properties by this name\n"
3907 " -a --all Show all units/properties, including dead/empty ones\n"
3908 " --full Don't ellipsize unit names on output\n"
3909 " --fail When queueing a new job, fail if conflicting jobs are\n"
3911 " -q --quiet Suppress output\n"
3912 " --no-block Do not wait until operation finished\n"
3913 " --system Connect to system bus\n"
3914 " --session Connect to session bus\n"
3915 " --order When generating graph for dot, show only order\n"
3916 " --require When generating graph for dot, show only requirement\n"
3917 " --no-wall Don't send wall message before halt/power-off/reboot\n"
3918 " --global Enable/disable unit files globally\n"
3919 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
3921 " --force When enabling unit files, override existing symlinks\n"
3922 " --defaults When disabling unit files, remove default symlinks only\n\n"
3924 " list-units List units\n"
3925 " start [NAME...] Start (activate) one or more units\n"
3926 " stop [NAME...] Stop (deactivate) one or more units\n"
3927 " reload [NAME...] Reload one or more units\n"
3928 " restart [NAME...] Start or restart one or more units\n"
3929 " try-restart [NAME...] Restart one or more units if active\n"
3930 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
3931 " otherwise start or restart\n"
3932 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
3933 " otherwise restart if active\n"
3934 " isolate [NAME] Start one unit and stop all others\n"
3935 " is-active [NAME...] Check whether units are active\n"
3936 " status [NAME...|PID...] Show runtime status of one or more units\n"
3937 " show [NAME...|JOB...] Show properties of one or more\n"
3938 " units/jobs or the manager\n"
3939 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
3941 " enable [NAME...] Enable one or more unit files\n"
3942 " disable [NAME...] Disable one or more unit files\n"
3943 " is-enabled [NAME...] Check whether unit files are enabled\n"
3944 " load [NAME...] Load one or more units\n"
3945 " list-jobs List jobs\n"
3946 " cancel [JOB...] Cancel all, one, or more jobs\n"
3947 " monitor Monitor unit/job changes\n"
3948 " dump Dump server status\n"
3949 " dot Dump dependency graph for dot(1)\n"
3950 " snapshot [NAME] Create a snapshot\n"
3951 " delete [NAME...] Remove one or more snapshots\n"
3952 " daemon-reload Reload systemd manager configuration\n"
3953 " daemon-reexec Reexecute systemd manager\n"
3954 " daemon-exit Ask the systemd manager to quit\n"
3955 " show-environment Dump environment\n"
3956 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
3957 " unset-environment [NAME...] Unset one or more environment variables\n"
3958 " halt Shut down and halt the system\n"
3959 " poweroff Shut down and power-off the system\n"
3960 " reboot Shut down and reboot the system\n"
3961 " rescue Enter system rescue mode\n"
3962 " emergency Enter system emergency mode\n"
3963 " default Enter system default mode\n",
3964 program_invocation_short_name);
3969 static int halt_help(void) {
3971 printf("%s [OPTIONS...]\n\n"
3972 "%s the system.\n\n"
3973 " --help Show this help\n"
3974 " --halt Halt the machine\n"
3975 " -p --poweroff Switch off the machine\n"
3976 " --reboot Reboot the machine\n"
3977 " -f --force Force immediate halt/power-off/reboot\n"
3978 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
3979 " -d --no-wtmp Don't write wtmp record\n"
3980 " -n --no-sync Don't sync before halt/power-off/reboot\n"
3981 " --no-wall Don't send wall message before halt/power-off/reboot\n",
3982 program_invocation_short_name,
3983 arg_action == ACTION_REBOOT ? "Reboot" :
3984 arg_action == ACTION_POWEROFF ? "Power off" :
3990 static int shutdown_help(void) {
3992 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
3993 "Shut down the system.\n\n"
3994 " --help Show this help\n"
3995 " -H --halt Halt the machine\n"
3996 " -P --poweroff Power-off the machine\n"
3997 " -r --reboot Reboot the machine\n"
3998 " -h Equivalent to --poweroff, overriden by --halt\n"
3999 " -k Don't halt/power-off/reboot, just send warnings\n"
4000 " --no-wall Don't send wall message before halt/power-off/reboot\n"
4001 " -c Cancel a pending shutdown\n",
4002 program_invocation_short_name);
4007 static int telinit_help(void) {
4009 printf("%s [OPTIONS...] {COMMAND}\n\n"
4010 "Send control commands to the init daemon.\n\n"
4011 " --help Show this help\n"
4012 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
4014 " 0 Power-off the machine\n"
4015 " 6 Reboot the machine\n"
4016 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4017 " 1, s, S Enter rescue mode\n"
4018 " q, Q Reload init daemon configuration\n"
4019 " u, U Reexecute init daemon\n",
4020 program_invocation_short_name);
4025 static int runlevel_help(void) {
4027 printf("%s [OPTIONS...]\n\n"
4028 "Prints the previous and current runlevel of the init system.\n\n"
4029 " --help Show this help\n",
4030 program_invocation_short_name);
4035 static int systemctl_parse_argv(int argc, char *argv[]) {
4053 static const struct option options[] = {
4054 { "help", no_argument, NULL, 'h' },
4055 { "version", no_argument, NULL, ARG_VERSION },
4056 { "type", required_argument, NULL, 't' },
4057 { "property", required_argument, NULL, 'p' },
4058 { "all", no_argument, NULL, 'a' },
4059 { "full", no_argument, NULL, ARG_FULL },
4060 { "fail", no_argument, NULL, ARG_FAIL },
4061 { "session", no_argument, NULL, ARG_SESSION },
4062 { "system", no_argument, NULL, ARG_SYSTEM },
4063 { "global", no_argument, NULL, ARG_GLOBAL },
4064 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4065 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4066 { "quiet", no_argument, NULL, 'q' },
4067 { "order", no_argument, NULL, ARG_ORDER },
4068 { "require", no_argument, NULL, ARG_REQUIRE },
4069 { "force", no_argument, NULL, ARG_FORCE },
4070 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
4071 { "defaults", no_argument, NULL, ARG_DEFAULTS },
4072 { NULL, 0, NULL, 0 }
4080 while ((c = getopt_long(argc, argv, "ht:p:aq", options, NULL)) >= 0) {
4089 puts(PACKAGE_STRING);
4091 puts(SYSTEMD_FEATURES);
4101 if (!(l = strv_append(arg_property, optarg)))
4104 strv_free(arg_property);
4107 /* If the user asked for a particular
4108 * property, show it to him, even if it is
4127 arg_session = false;
4131 arg_no_block = true;
4139 arg_dot = DOT_ORDER;
4143 arg_dot = DOT_REQUIRE;
4159 arg_no_reload = true;
4168 arg_defaults = true;
4175 log_error("Unknown option code %c", c);
4183 static int halt_parse_argv(int argc, char *argv[]) {
4192 static const struct option options[] = {
4193 { "help", no_argument, NULL, ARG_HELP },
4194 { "halt", no_argument, NULL, ARG_HALT },
4195 { "poweroff", no_argument, NULL, 'p' },
4196 { "reboot", no_argument, NULL, ARG_REBOOT },
4197 { "force", no_argument, NULL, 'f' },
4198 { "wtmp-only", no_argument, NULL, 'w' },
4199 { "no-wtmp", no_argument, NULL, 'd' },
4200 { "no-sync", no_argument, NULL, 'n' },
4201 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4202 { NULL, 0, NULL, 0 }
4210 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4211 if (runlevel == '0' || runlevel == '6')
4212 arg_immediate = true;
4214 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4222 arg_action = ACTION_HALT;
4226 if (arg_action != ACTION_REBOOT)
4227 arg_action = ACTION_POWEROFF;
4231 arg_action = ACTION_REBOOT;
4235 arg_immediate = true;
4256 /* Compatibility nops */
4263 log_error("Unknown option code %c", c);
4268 if (optind < argc) {
4269 log_error("Too many arguments.");
4276 static int parse_time_spec(const char *t, usec_t *_u) {
4280 if (streq(t, "now"))
4282 else if (t[0] == '+') {
4285 if (safe_atou64(t + 1, &u) < 0)
4288 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4297 hour = strtol(t, &e, 10);
4298 if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
4301 minute = strtol(e+1, &e, 10);
4302 if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
4305 n = now(CLOCK_REALTIME);
4306 s = (time_t) (n / USEC_PER_SEC);
4309 assert_se(localtime_r(&s, &tm));
4311 tm.tm_hour = (int) hour;
4312 tm.tm_min = (int) minute;
4315 assert_se(s = mktime(&tm));
4317 *_u = (usec_t) s * USEC_PER_SEC;
4320 *_u += USEC_PER_DAY;
4326 static int shutdown_parse_argv(int argc, char *argv[]) {
4333 static const struct option options[] = {
4334 { "help", no_argument, NULL, ARG_HELP },
4335 { "halt", no_argument, NULL, 'H' },
4336 { "poweroff", no_argument, NULL, 'P' },
4337 { "reboot", no_argument, NULL, 'r' },
4338 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4339 { NULL, 0, NULL, 0 }
4347 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
4355 arg_action = ACTION_HALT;
4359 arg_action = ACTION_POWEROFF;
4363 arg_action = ACTION_REBOOT;
4367 if (arg_action != ACTION_HALT)
4368 arg_action = ACTION_POWEROFF;
4381 /* Compatibility nops */
4385 arg_action = ACTION_CANCEL_SHUTDOWN;
4392 log_error("Unknown option code %c", c);
4397 if (argc > optind) {
4398 if ((r = parse_time_spec(argv[optind], &arg_when)) < 0) {
4399 log_error("Failed to parse time specification: %s", argv[optind]);
4403 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
4405 /* We skip the time argument */
4406 if (argc > optind + 1)
4407 arg_wall = argv + optind + 1;
4414 static int telinit_parse_argv(int argc, char *argv[]) {
4421 static const struct option options[] = {
4422 { "help", no_argument, NULL, ARG_HELP },
4423 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4424 { NULL, 0, NULL, 0 }
4427 static const struct {
4431 { '0', ACTION_POWEROFF },
4432 { '6', ACTION_REBOOT },
4433 { '1', ACTION_RESCUE },
4434 { '2', ACTION_RUNLEVEL2 },
4435 { '3', ACTION_RUNLEVEL3 },
4436 { '4', ACTION_RUNLEVEL4 },
4437 { '5', ACTION_RUNLEVEL5 },
4438 { 's', ACTION_RESCUE },
4439 { 'S', ACTION_RESCUE },
4440 { 'q', ACTION_RELOAD },
4441 { 'Q', ACTION_RELOAD },
4442 { 'u', ACTION_REEXEC },
4443 { 'U', ACTION_REEXEC }
4452 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4467 log_error("Unknown option code %c", c);
4472 if (optind >= argc) {
4477 if (optind + 1 < argc) {
4478 log_error("Too many arguments.");
4482 if (strlen(argv[optind]) != 1) {
4483 log_error("Expected single character argument.");
4487 for (i = 0; i < ELEMENTSOF(table); i++)
4488 if (table[i].from == argv[optind][0])
4491 if (i >= ELEMENTSOF(table)) {
4492 log_error("Unknown command %s.", argv[optind]);
4496 arg_action = table[i].to;
4503 static int runlevel_parse_argv(int argc, char *argv[]) {
4509 static const struct option options[] = {
4510 { "help", no_argument, NULL, ARG_HELP },
4511 { NULL, 0, NULL, 0 }
4519 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4530 log_error("Unknown option code %c", c);
4535 if (optind < argc) {
4536 log_error("Too many arguments.");
4543 static int parse_argv(int argc, char *argv[]) {
4547 if (program_invocation_short_name) {
4549 if (strstr(program_invocation_short_name, "halt")) {
4550 arg_action = ACTION_HALT;
4551 return halt_parse_argv(argc, argv);
4552 } else if (strstr(program_invocation_short_name, "poweroff")) {
4553 arg_action = ACTION_POWEROFF;
4554 return halt_parse_argv(argc, argv);
4555 } else if (strstr(program_invocation_short_name, "reboot")) {
4556 arg_action = ACTION_REBOOT;
4557 return halt_parse_argv(argc, argv);
4558 } else if (strstr(program_invocation_short_name, "shutdown")) {
4559 arg_action = ACTION_POWEROFF;
4560 return shutdown_parse_argv(argc, argv);
4561 } else if (strstr(program_invocation_short_name, "init")) {
4563 if (sd_booted() > 0) {
4564 arg_action = ACTION_INVALID;
4565 return telinit_parse_argv(argc, argv);
4567 /* Hmm, so some other init system is
4568 * running, we need to forward this
4569 * request to it. For now we simply
4570 * guess that it is Upstart. */
4572 execv("/lib/upstart/telinit", argv);
4574 log_error("Couldn't find an alternative telinit implementation to spawn.");
4578 } else if (strstr(program_invocation_short_name, "runlevel")) {
4579 arg_action = ACTION_RUNLEVEL;
4580 return runlevel_parse_argv(argc, argv);
4584 arg_action = ACTION_SYSTEMCTL;
4585 return systemctl_parse_argv(argc, argv);
4588 static int action_to_runlevel(void) {
4590 static const char table[_ACTION_MAX] = {
4591 [ACTION_HALT] = '0',
4592 [ACTION_POWEROFF] = '0',
4593 [ACTION_REBOOT] = '6',
4594 [ACTION_RUNLEVEL2] = '2',
4595 [ACTION_RUNLEVEL3] = '3',
4596 [ACTION_RUNLEVEL4] = '4',
4597 [ACTION_RUNLEVEL5] = '5',
4598 [ACTION_RESCUE] = '1'
4601 assert(arg_action < _ACTION_MAX);
4603 return table[arg_action];
4606 static int talk_upstart(void) {
4607 DBusMessage *m = NULL, *reply = NULL;
4609 int previous, rl, r;
4611 env1_buf[] = "RUNLEVEL=X",
4612 env2_buf[] = "PREVLEVEL=X";
4613 char *env1 = env1_buf, *env2 = env2_buf;
4614 const char *emit = "runlevel";
4615 dbus_bool_t b_false = FALSE;
4616 DBusMessageIter iter, sub;
4617 DBusConnection *bus;
4619 dbus_error_init(&error);
4621 if (!(rl = action_to_runlevel()))
4624 if (utmp_get_runlevel(&previous, NULL) < 0)
4627 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
4628 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
4633 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
4638 if ((r = bus_check_peercred(bus)) < 0) {
4639 log_error("Failed to verify owner of bus.");
4643 if (!(m = dbus_message_new_method_call(
4644 "com.ubuntu.Upstart",
4645 "/com/ubuntu/Upstart",
4646 "com.ubuntu.Upstart0_6",
4649 log_error("Could not allocate message.");
4654 dbus_message_iter_init_append(m, &iter);
4656 env1_buf[sizeof(env1_buf)-2] = rl;
4657 env2_buf[sizeof(env2_buf)-2] = previous;
4659 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
4660 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
4661 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
4662 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
4663 !dbus_message_iter_close_container(&iter, &sub) ||
4664 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
4665 log_error("Could not append arguments to message.");
4670 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4672 if (error_is_no_service(&error)) {
4677 log_error("Failed to issue method call: %s", bus_error_message(&error));
4686 dbus_message_unref(m);
4689 dbus_message_unref(reply);
4692 dbus_connection_flush(bus);
4693 dbus_connection_close(bus);
4694 dbus_connection_unref(bus);
4697 dbus_error_free(&error);
4702 static int talk_initctl(void) {
4703 struct init_request request;
4707 if (!(rl = action_to_runlevel()))
4711 request.magic = INIT_MAGIC;
4712 request.sleeptime = 0;
4713 request.cmd = INIT_CMD_RUNLVL;
4714 request.runlevel = rl;
4716 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
4718 if (errno == ENOENT)
4721 log_error("Failed to open "INIT_FIFO": %m");
4726 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
4727 close_nointr_nofail(fd);
4730 log_error("Failed to write to "INIT_FIFO": %m");
4731 return errno ? -errno : -EIO;
4737 static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
4739 static const struct {
4747 int (* const dispatch)(DBusConnection *bus, char **args, unsigned n);
4749 { "list-units", LESS, 1, list_units },
4750 { "list-jobs", EQUAL, 1, list_jobs },
4751 { "clear-jobs", EQUAL, 1, daemon_reload },
4752 { "load", MORE, 2, load_unit },
4753 { "cancel", MORE, 2, cancel_job },
4754 { "start", MORE, 2, start_unit },
4755 { "stop", MORE, 2, start_unit },
4756 { "reload", MORE, 2, start_unit },
4757 { "restart", MORE, 2, start_unit },
4758 { "try-restart", MORE, 2, start_unit },
4759 { "reload-or-restart", MORE, 2, start_unit },
4760 { "reload-or-try-restart", MORE, 2, start_unit },
4761 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
4762 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
4763 { "isolate", EQUAL, 2, start_unit },
4764 { "is-active", MORE, 2, check_unit },
4765 { "check", MORE, 2, check_unit },
4766 { "show", MORE, 1, show },
4767 { "status", MORE, 2, show },
4768 { "monitor", EQUAL, 1, monitor },
4769 { "dump", EQUAL, 1, dump },
4770 { "dot", EQUAL, 1, dot },
4771 { "snapshot", LESS, 2, snapshot },
4772 { "delete", MORE, 2, delete_snapshot },
4773 { "daemon-reload", EQUAL, 1, daemon_reload },
4774 { "daemon-reexec", EQUAL, 1, daemon_reload },
4775 { "daemon-exit", EQUAL, 1, daemon_reload },
4776 { "show-environment", EQUAL, 1, show_enviroment },
4777 { "set-environment", MORE, 2, set_environment },
4778 { "unset-environment", MORE, 2, set_environment },
4779 { "halt", EQUAL, 1, start_special },
4780 { "poweroff", EQUAL, 1, start_special },
4781 { "reboot", EQUAL, 1, start_special },
4782 { "default", EQUAL, 1, start_special },
4783 { "rescue", EQUAL, 1, start_special },
4784 { "emergency", EQUAL, 1, start_special },
4785 { "reset-failed", MORE, 1, reset_failed },
4786 { "enable", MORE, 2, enable_unit },
4787 { "disable", MORE, 2, enable_unit },
4788 { "is-enabled", MORE, 2, enable_unit }
4798 left = argc - optind;
4801 /* Special rule: no arguments means "list-units" */
4804 if (streq(argv[optind], "help")) {
4809 for (i = 0; i < ELEMENTSOF(verbs); i++)
4810 if (streq(argv[optind], verbs[i].verb))
4813 if (i >= ELEMENTSOF(verbs)) {
4814 log_error("Unknown operation %s", argv[optind]);
4819 switch (verbs[i].argc_cmp) {
4822 if (left != verbs[i].argc) {
4823 log_error("Invalid number of arguments.");
4830 if (left < verbs[i].argc) {
4831 log_error("Too few arguments.");
4838 if (left > verbs[i].argc) {
4839 log_error("Too many arguments.");
4846 assert_not_reached("Unknown comparison operator.");
4849 /* Require a bus connection for all operations but
4851 if (!streq(verbs[i].verb, "enable") &&
4852 !streq(verbs[i].verb, "disable") &&
4854 log_error("Failed to get D-Bus connection: %s", error->message);
4858 return verbs[i].dispatch(bus, argv + optind, left);
4861 static int send_shutdownd(usec_t t, char mode, bool warn, const char *message) {
4863 struct msghdr msghdr;
4865 union sockaddr_union sockaddr;
4866 struct shutdownd_command c;
4874 strncpy(c.wall_message, message, sizeof(c.wall_message));
4876 if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0)
4880 sockaddr.sa.sa_family = AF_UNIX;
4881 sockaddr.un.sun_path[0] = 0;
4882 strncpy(sockaddr.un.sun_path+1, "/org/freedesktop/systemd1/shutdownd", sizeof(sockaddr.un.sun_path)-1);
4885 iovec.iov_base = (char*) &c;
4886 iovec.iov_len = sizeof(c);
4889 msghdr.msg_name = &sockaddr;
4890 msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + 1 + sizeof("/org/freedesktop/systemd1/shutdownd") - 1;
4892 msghdr.msg_iov = &iovec;
4893 msghdr.msg_iovlen = 1;
4895 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
4896 close_nointr_nofail(fd);
4900 close_nointr_nofail(fd);
4904 static int reload_with_fallback(DBusConnection *bus) {
4907 /* First, try systemd via D-Bus. */
4908 if (daemon_reload(bus, NULL, 0) > 0)
4912 /* Nothing else worked, so let's try signals */
4913 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
4915 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
4916 log_error("kill() failed: %m");
4923 static int start_with_fallback(DBusConnection *bus) {
4926 /* First, try systemd via D-Bus. */
4927 if (start_unit(bus, NULL, 0) >= 0)
4931 /* Hmm, talking to systemd via D-Bus didn't work. Then
4932 * let's try to talk to Upstart via D-Bus. */
4933 if (talk_upstart() > 0)
4936 /* Nothing else worked, so let's try
4938 if (talk_initctl() > 0)
4941 log_error("Failed to talk to init daemon.");
4945 warn_wall(arg_action);
4949 static int halt_main(DBusConnection *bus) {
4952 if (geteuid() != 0) {
4953 log_error("Must be root.");
4959 char date[FORMAT_TIMESTAMP_MAX];
4961 m = strv_join(arg_wall, " ");
4962 r = send_shutdownd(arg_when,
4963 arg_action == ACTION_HALT ? 'H' :
4964 arg_action == ACTION_POWEROFF ? 'P' :
4971 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
4973 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
4974 format_timestamp(date, sizeof(date), arg_when));
4979 if (!arg_dry && !arg_immediate)
4980 return start_with_fallback(bus);
4983 if (sd_booted() > 0)
4984 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
4985 else if ((r = utmp_put_shutdown(0)) < 0)
4986 log_warning("Failed to write utmp record: %s", strerror(-r));
4995 /* Make sure C-A-D is handled by the kernel from this
4997 reboot(RB_ENABLE_CAD);
4999 switch (arg_action) {
5002 log_info("Halting.");
5003 reboot(RB_HALT_SYSTEM);
5006 case ACTION_POWEROFF:
5007 log_info("Powering off.");
5008 reboot(RB_POWER_OFF);
5012 log_info("Rebooting.");
5013 reboot(RB_AUTOBOOT);
5017 assert_not_reached("Unknown halt action.");
5020 /* We should never reach this. */
5024 static int runlevel_main(void) {
5025 int r, runlevel, previous;
5027 if ((r = utmp_get_runlevel(&runlevel, &previous)) < 0) {
5028 printf("unknown\n");
5033 previous <= 0 ? 'N' : previous,
5034 runlevel <= 0 ? 'N' : runlevel);
5039 int main(int argc, char*argv[]) {
5040 int r, retval = EXIT_FAILURE;
5041 DBusConnection *bus = NULL;
5044 dbus_error_init(&error);
5046 log_parse_environment();
5049 if ((r = parse_argv(argc, argv)) < 0)
5052 retval = EXIT_SUCCESS;
5056 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5057 * let's shortcut this */
5058 if (arg_action == ACTION_RUNLEVEL) {
5059 r = runlevel_main();
5060 retval = r < 0 ? EXIT_FAILURE : r;
5064 bus_connect(arg_session ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &bus, &private_bus, &error);
5066 switch (arg_action) {
5068 case ACTION_SYSTEMCTL:
5069 r = systemctl_main(bus, argc, argv, &error);
5073 case ACTION_POWEROFF:
5078 case ACTION_RUNLEVEL2:
5079 case ACTION_RUNLEVEL3:
5080 case ACTION_RUNLEVEL4:
5081 case ACTION_RUNLEVEL5:
5083 case ACTION_EMERGENCY:
5084 case ACTION_DEFAULT:
5085 r = start_with_fallback(bus);
5090 r = reload_with_fallback(bus);
5093 case ACTION_CANCEL_SHUTDOWN:
5094 r = send_shutdownd(0, 0, false, NULL);
5097 case ACTION_INVALID:
5098 case ACTION_RUNLEVEL:
5100 assert_not_reached("Unknown action");
5103 retval = r < 0 ? EXIT_FAILURE : r;
5108 dbus_connection_flush(bus);
5109 dbus_connection_close(bus);
5110 dbus_connection_unref(bus);
5113 dbus_error_free(&error);
5117 strv_free(arg_property);