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>
35 #include <dbus/dbus.h>
41 #include "utmp-wtmp.h"
45 #include "dbus-common.h"
46 #include "cgroup-show.h"
47 #include "cgroup-util.h"
49 #include "path-lookup.h"
50 #include "conf-parser.h"
51 #include "sd-daemon.h"
52 #include "shutdownd.h"
53 #include "exit-status.h"
54 #include "bus-errors.h"
57 static const char *arg_type = NULL;
58 static char **arg_property = NULL;
59 static bool arg_all = false;
60 static bool arg_fail = false;
61 static bool arg_session = false;
62 static bool arg_global = false;
63 static bool arg_immediate = false;
64 static bool arg_no_block = false;
65 static bool arg_no_wtmp = false;
66 static bool arg_no_sync = false;
67 static bool arg_no_wall = false;
68 static bool arg_no_reload = false;
69 static bool arg_dry = false;
70 static bool arg_quiet = false;
71 static bool arg_full = false;
72 static bool arg_force = false;
73 static bool arg_defaults = false;
74 static char **arg_wall = NULL;
75 static usec_t arg_when = 0;
92 ACTION_CANCEL_SHUTDOWN,
94 } arg_action = ACTION_SYSTEMCTL;
101 static bool private_bus = false;
103 static int daemon_reload(DBusConnection *bus, char **args, unsigned n);
105 static bool on_tty(void) {
108 if (_unlikely_(t < 0))
109 t = isatty(STDOUT_FILENO) > 0;
114 static const char *ansi_highlight(bool b) {
119 return b ? ANSI_HIGHLIGHT_ON : ANSI_HIGHLIGHT_OFF;
122 static const char *ansi_highlight_green(bool b) {
127 return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF;
130 static bool error_is_no_service(const DBusError *error) {
133 if (!dbus_error_is_set(error))
136 if (dbus_error_has_name(error, DBUS_ERROR_NAME_HAS_NO_OWNER))
139 if (dbus_error_has_name(error, DBUS_ERROR_SERVICE_UNKNOWN))
142 return startswith(error->name, "org.freedesktop.DBus.Error.Spawn.");
145 static int translate_bus_error_to_exit_status(int r, const DBusError *error) {
148 if (!dbus_error_is_set(error))
151 if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) ||
152 dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) ||
153 dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) ||
154 dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE))
155 return EXIT_NOPERMISSION;
157 if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT))
158 return EXIT_NOTINSTALLED;
160 if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) ||
161 dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED))
162 return EXIT_NOTIMPLEMENTED;
164 if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED))
165 return EXIT_NOTCONFIGURED;
173 static int bus_iter_get_basic_and_next(DBusMessageIter *iter, int type, void *data, bool next) {
178 if (dbus_message_iter_get_arg_type(iter) != type)
181 dbus_message_iter_get_basic(iter, data);
183 if (!dbus_message_iter_next(iter) != !next)
189 static void warn_wall(enum action action) {
190 static const char *table[_ACTION_MAX] = {
191 [ACTION_HALT] = "The system is going down for system halt NOW!",
192 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
193 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
194 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
195 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!"
204 if (!(p = strv_join(arg_wall, " "))) {
205 log_error("Failed to join strings.");
221 utmp_wall(table[action]);
226 const char *description;
227 const char *load_state;
228 const char *active_state;
229 const char *sub_state;
230 const char *following;
231 const char *unit_path;
233 const char *job_type;
234 const char *job_path;
237 static int compare_unit_info(const void *a, const void *b) {
239 const struct unit_info *u = a, *v = b;
241 d1 = strrchr(u->id, '.');
242 d2 = strrchr(v->id, '.');
247 if ((r = strcasecmp(d1, d2)) != 0)
251 return strcasecmp(u->id, v->id);
254 static bool output_show_job(const struct unit_info *u) {
257 return (!arg_type || ((dot = strrchr(u->id, '.')) &&
258 streq(dot+1, arg_type))) &&
259 (arg_all || !(streq(u->active_state, "inactive") || u->following[0]) || u->job_id > 0);
262 static void output_units_list(const struct unit_info *unit_infos, unsigned c) {
263 unsigned active_len, sub_len, job_len;
264 const struct unit_info *u;
266 active_len = sizeof("ACTIVE")-1;
267 sub_len = sizeof("SUB")-1;
268 job_len = sizeof("JOB")-1;
270 for (u = unit_infos; u < unit_infos + c; u++) {
271 if (!output_show_job(u))
274 active_len = MAX(active_len, strlen(u->active_state));
275 sub_len = MAX(sub_len, strlen(u->sub_state));
277 job_len = MAX(job_len, strlen(u->job_type));
281 printf("%-25s %-6s %-*s %-*s %-*s", "UNIT", "LOAD",
282 active_len, "ACTIVE", sub_len, "SUB", job_len, "JOB");
283 if (columns() >= 80+12 || arg_full)
284 printf(" %s\n", "DESCRIPTION");
289 for (u = unit_infos; u < unit_infos + c; u++) {
292 const char *on_loaded, *off_loaded;
293 const char *on_active, *off_active;
295 if (!output_show_job(u))
298 if (!streq(u->load_state, "loaded")) {
299 on_loaded = ansi_highlight(true);
300 off_loaded = ansi_highlight(false);
302 on_loaded = off_loaded = "";
304 if (streq(u->active_state, "failed")) {
305 on_active = ansi_highlight(true);
306 off_active = ansi_highlight(false);
308 on_active = off_active = "";
310 e = arg_full ? NULL : ellipsize(u->id, 25, 33);
312 printf("%-25s %s%-6s%s %s%-*s %-*s%s%n",
314 on_loaded, u->load_state, off_loaded,
315 on_active, active_len, u->active_state,
316 sub_len, u->sub_state, off_active,
321 a -= strlen(on_loaded) + strlen(off_loaded);
322 a -= strlen(on_active) + strlen(off_active);
325 printf(" %-*s", job_len, u->job_type);
329 if (a + b + 1 < columns()) {
331 printf(" %-*s", job_len, "");
334 printf(" %s", u->description);
336 printf(" %.*s", columns() - a - b - 1, u->description);
343 printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n"
344 "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
345 "SUB = The low-level unit activation state, values depend on unit type.\n"
346 "JOB = Pending job for the unit.\n");
349 printf("\n%u units listed.\n", c);
351 printf("\n%u units listed. Pass --all to see inactive units, too.\n", c);
355 static int list_units(DBusConnection *bus, char **args, unsigned n) {
356 DBusMessage *m = NULL, *reply = NULL;
359 DBusMessageIter iter, sub, sub2;
360 unsigned c = 0, n_units = 0;
361 struct unit_info *unit_infos = NULL;
363 dbus_error_init(&error);
367 if (!(m = dbus_message_new_method_call(
368 "org.freedesktop.systemd1",
369 "/org/freedesktop/systemd1",
370 "org.freedesktop.systemd1.Manager",
372 log_error("Could not allocate message.");
376 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
377 log_error("Failed to issue method call: %s", bus_error_message(&error));
382 if (!dbus_message_iter_init(reply, &iter) ||
383 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
384 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
385 log_error("Failed to parse reply.");
390 dbus_message_iter_recurse(&iter, &sub);
392 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
395 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
396 log_error("Failed to parse reply.");
404 n_units = MAX(2*c, 16);
405 w = realloc(unit_infos, sizeof(struct unit_info) * n_units);
408 log_error("Failed to allocate unit array.");
418 dbus_message_iter_recurse(&sub, &sub2);
420 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->id, true) < 0 ||
421 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->description, true) < 0 ||
422 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->load_state, true) < 0 ||
423 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->active_state, true) < 0 ||
424 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->sub_state, true) < 0 ||
425 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->following, true) < 0 ||
426 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->unit_path, true) < 0 ||
427 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &u->job_id, true) < 0 ||
428 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->job_type, true) < 0 ||
429 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->job_path, false) < 0) {
430 log_error("Failed to parse reply.");
435 dbus_message_iter_next(&sub);
439 qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info);
440 output_units_list(unit_infos, c);
446 dbus_message_unref(m);
449 dbus_message_unref(reply);
453 dbus_error_free(&error);
458 static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) {
459 static const char * const colors[] = {
460 "Requires", "[color=\"black\"]",
461 "RequiresOverridable", "[color=\"black\"]",
462 "Requisite", "[color=\"darkblue\"]",
463 "RequisiteOverridable", "[color=\"darkblue\"]",
464 "Wants", "[color=\"darkgrey\"]",
465 "Conflicts", "[color=\"red\"]",
466 "ConflictedBy", "[color=\"red\"]",
467 "After", "[color=\"green\"]"
470 const char *c = NULL;
477 for (i = 0; i < ELEMENTSOF(colors); i += 2)
478 if (streq(colors[i], prop)) {
486 if (arg_dot != DOT_ALL)
487 if ((arg_dot == DOT_ORDER) != streq(prop, "After"))
490 switch (dbus_message_iter_get_arg_type(iter)) {
492 case DBUS_TYPE_ARRAY:
494 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
497 dbus_message_iter_recurse(iter, &sub);
499 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
502 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
503 dbus_message_iter_get_basic(&sub, &s);
504 printf("\t\"%s\"->\"%s\" %s;\n", name, s, c);
506 dbus_message_iter_next(&sub);
516 static int dot_one(DBusConnection *bus, const char *name, const char *path) {
517 DBusMessage *m = NULL, *reply = NULL;
518 const char *interface = "org.freedesktop.systemd1.Unit";
521 DBusMessageIter iter, sub, sub2, sub3;
526 dbus_error_init(&error);
528 if (!(m = dbus_message_new_method_call(
529 "org.freedesktop.systemd1",
531 "org.freedesktop.DBus.Properties",
533 log_error("Could not allocate message.");
538 if (!dbus_message_append_args(m,
539 DBUS_TYPE_STRING, &interface,
540 DBUS_TYPE_INVALID)) {
541 log_error("Could not append arguments to message.");
546 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
547 log_error("Failed to issue method call: %s", bus_error_message(&error));
552 if (!dbus_message_iter_init(reply, &iter) ||
553 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
554 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
555 log_error("Failed to parse reply.");
560 dbus_message_iter_recurse(&iter, &sub);
562 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
565 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
566 log_error("Failed to parse reply.");
571 dbus_message_iter_recurse(&sub, &sub2);
573 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
574 log_error("Failed to parse reply.");
579 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
580 log_error("Failed to parse reply.");
585 dbus_message_iter_recurse(&sub2, &sub3);
587 if (dot_one_property(name, prop, &sub3)) {
588 log_error("Failed to parse reply.");
593 dbus_message_iter_next(&sub);
600 dbus_message_unref(m);
603 dbus_message_unref(reply);
605 dbus_error_free(&error);
610 static int dot(DBusConnection *bus, char **args, unsigned n) {
611 DBusMessage *m = NULL, *reply = NULL;
614 DBusMessageIter iter, sub, sub2;
616 dbus_error_init(&error);
620 if (!(m = dbus_message_new_method_call(
621 "org.freedesktop.systemd1",
622 "/org/freedesktop/systemd1",
623 "org.freedesktop.systemd1.Manager",
625 log_error("Could not allocate message.");
629 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
630 log_error("Failed to issue method call: %s", bus_error_message(&error));
635 if (!dbus_message_iter_init(reply, &iter) ||
636 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
637 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
638 log_error("Failed to parse reply.");
643 printf("digraph systemd {\n");
645 dbus_message_iter_recurse(&iter, &sub);
646 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
647 const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path;
649 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
650 log_error("Failed to parse reply.");
655 dbus_message_iter_recurse(&sub, &sub2);
657 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
658 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
659 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
660 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
661 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
662 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 ||
663 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) {
664 log_error("Failed to parse reply.");
669 if ((r = dot_one(bus, id, unit_path)) < 0)
672 /* printf("\t\"%s\";\n", id); */
673 dbus_message_iter_next(&sub);
678 log_info(" Color legend: black = Requires\n"
679 " dark blue = Requisite\n"
680 " dark grey = Wants\n"
684 if (isatty(fileno(stdout)))
685 log_notice("-- You probably want to process this output with graphviz' dot tool.\n"
686 "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n");
692 dbus_message_unref(m);
695 dbus_message_unref(reply);
697 dbus_error_free(&error);
702 static int list_jobs(DBusConnection *bus, char **args, unsigned n) {
703 DBusMessage *m = NULL, *reply = NULL;
706 DBusMessageIter iter, sub, sub2;
709 dbus_error_init(&error);
713 if (!(m = dbus_message_new_method_call(
714 "org.freedesktop.systemd1",
715 "/org/freedesktop/systemd1",
716 "org.freedesktop.systemd1.Manager",
718 log_error("Could not allocate message.");
722 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
723 log_error("Failed to issue method call: %s", bus_error_message(&error));
728 if (!dbus_message_iter_init(reply, &iter) ||
729 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
730 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
731 log_error("Failed to parse reply.");
736 dbus_message_iter_recurse(&iter, &sub);
738 if (isatty(STDOUT_FILENO))
739 printf("%4s %-25s %-15s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
741 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
742 const char *name, *type, *state, *job_path, *unit_path;
746 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
747 log_error("Failed to parse reply.");
752 dbus_message_iter_recurse(&sub, &sub2);
754 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
755 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
756 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
757 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
758 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
759 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
760 log_error("Failed to parse reply.");
765 e = arg_full ? NULL : ellipsize(name, 25, 33);
766 printf("%4u %-25s %-15s %-7s\n", id, e ? e : name, type, state);
771 dbus_message_iter_next(&sub);
774 if (isatty(STDOUT_FILENO))
775 printf("\n%u jobs listed.\n", k);
781 dbus_message_unref(m);
784 dbus_message_unref(reply);
786 dbus_error_free(&error);
791 static int load_unit(DBusConnection *bus, char **args, unsigned n) {
792 DBusMessage *m = NULL, *reply = NULL;
797 dbus_error_init(&error);
802 for (i = 1; i < n; i++) {
804 if (!(m = dbus_message_new_method_call(
805 "org.freedesktop.systemd1",
806 "/org/freedesktop/systemd1",
807 "org.freedesktop.systemd1.Manager",
809 log_error("Could not allocate message.");
814 if (!dbus_message_append_args(m,
815 DBUS_TYPE_STRING, &args[i],
816 DBUS_TYPE_INVALID)) {
817 log_error("Could not append arguments to message.");
822 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
823 log_error("Failed to issue method call: %s", bus_error_message(&error));
828 dbus_message_unref(m);
829 dbus_message_unref(reply);
838 dbus_message_unref(m);
841 dbus_message_unref(reply);
843 dbus_error_free(&error);
848 static int cancel_job(DBusConnection *bus, char **args, unsigned n) {
849 DBusMessage *m = NULL, *reply = NULL;
854 dbus_error_init(&error);
860 return daemon_reload(bus, args, n);
862 for (i = 1; i < n; i++) {
866 if (!(m = dbus_message_new_method_call(
867 "org.freedesktop.systemd1",
868 "/org/freedesktop/systemd1",
869 "org.freedesktop.systemd1.Manager",
871 log_error("Could not allocate message.");
876 if ((r = safe_atou(args[i], &id)) < 0) {
877 log_error("Failed to parse job id: %s", strerror(-r));
881 assert_cc(sizeof(uint32_t) == sizeof(id));
882 if (!dbus_message_append_args(m,
883 DBUS_TYPE_UINT32, &id,
884 DBUS_TYPE_INVALID)) {
885 log_error("Could not append arguments to message.");
890 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
891 log_error("Failed to issue method call: %s", bus_error_message(&error));
896 if (!dbus_message_get_args(reply, &error,
897 DBUS_TYPE_OBJECT_PATH, &path,
898 DBUS_TYPE_INVALID)) {
899 log_error("Failed to parse reply: %s", bus_error_message(&error));
904 dbus_message_unref(m);
905 if (!(m = dbus_message_new_method_call(
906 "org.freedesktop.systemd1",
908 "org.freedesktop.systemd1.Job",
910 log_error("Could not allocate message.");
915 dbus_message_unref(reply);
916 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
917 log_error("Failed to issue method call: %s", bus_error_message(&error));
922 dbus_message_unref(m);
923 dbus_message_unref(reply);
931 dbus_message_unref(m);
934 dbus_message_unref(reply);
936 dbus_error_free(&error);
941 static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
942 DBusMessage *m = NULL, *reply = NULL;
943 dbus_bool_t b = FALSE;
944 DBusMessageIter iter, sub;
946 *interface = "org.freedesktop.systemd1.Unit",
947 *property = "NeedDaemonReload",
950 /* We ignore all errors here, since this is used to show a warning only */
952 if (!(m = dbus_message_new_method_call(
953 "org.freedesktop.systemd1",
954 "/org/freedesktop/systemd1",
955 "org.freedesktop.systemd1.Manager",
959 if (!dbus_message_append_args(m,
960 DBUS_TYPE_STRING, &unit,
964 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
967 if (!dbus_message_get_args(reply, NULL,
968 DBUS_TYPE_OBJECT_PATH, &path,
972 dbus_message_unref(m);
973 if (!(m = dbus_message_new_method_call(
974 "org.freedesktop.systemd1",
976 "org.freedesktop.DBus.Properties",
980 if (!dbus_message_append_args(m,
981 DBUS_TYPE_STRING, &interface,
982 DBUS_TYPE_STRING, &property,
983 DBUS_TYPE_INVALID)) {
987 dbus_message_unref(reply);
988 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
991 if (!dbus_message_iter_init(reply, &iter) ||
992 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
995 dbus_message_iter_recurse(&iter, &sub);
997 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
1000 dbus_message_iter_get_basic(&sub, &b);
1004 dbus_message_unref(m);
1007 dbus_message_unref(reply);
1012 typedef struct WaitData {
1017 static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
1025 dbus_error_init(&error);
1027 log_debug("Got D-Bus request: %s.%s() on %s",
1028 dbus_message_get_interface(message),
1029 dbus_message_get_member(message),
1030 dbus_message_get_path(message));
1032 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
1033 log_error("Warning! D-Bus connection terminated.");
1034 dbus_connection_close(connection);
1036 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1039 dbus_bool_t success = true;
1041 if (!dbus_message_get_args(message, &error,
1042 DBUS_TYPE_UINT32, &id,
1043 DBUS_TYPE_OBJECT_PATH, &path,
1044 DBUS_TYPE_BOOLEAN, &success,
1046 log_error("Failed to parse message: %s", bus_error_message(&error));
1050 if ((p = set_remove(d->set, (char*) path)))
1058 dbus_error_free(&error);
1059 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1062 static int enable_wait_for_jobs(DBusConnection *bus) {
1070 dbus_error_init(&error);
1071 dbus_bus_add_match(bus,
1073 "sender='org.freedesktop.systemd1',"
1074 "interface='org.freedesktop.systemd1.Manager',"
1075 "member='JobRemoved',"
1076 "path='/org/freedesktop/systemd1'",
1079 if (dbus_error_is_set(&error)) {
1080 log_error("Failed to add match: %s", bus_error_message(&error));
1081 dbus_error_free(&error);
1085 /* This is slightly dirty, since we don't undo the match registrations. */
1089 static int wait_for_jobs(DBusConnection *bus, Set *s) {
1100 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
1101 log_error("Failed to add filter.");
1106 while (!set_isempty(s) &&
1107 dbus_connection_read_write_dispatch(bus, -1))
1110 if (!arg_quiet && d.failed)
1111 log_error("Job failed, see system logs for details.");
1113 r = d.failed ? -EIO : 0;
1116 /* This is slightly dirty, since we don't undo the filter registration. */
1121 static int start_unit_one(
1122 DBusConnection *bus,
1129 DBusMessage *m = NULL, *reply = NULL;
1138 assert(arg_no_block || s);
1140 if (!(m = dbus_message_new_method_call(
1141 "org.freedesktop.systemd1",
1142 "/org/freedesktop/systemd1",
1143 "org.freedesktop.systemd1.Manager",
1145 log_error("Could not allocate message.");
1150 if (!dbus_message_append_args(m,
1151 DBUS_TYPE_STRING, &name,
1152 DBUS_TYPE_STRING, &mode,
1153 DBUS_TYPE_INVALID)) {
1154 log_error("Could not append arguments to message.");
1159 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error))) {
1161 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(error)) {
1162 /* There's always a fallback possible for
1163 * legacy actions. */
1168 log_error("Failed to issue method call: %s", bus_error_message(error));
1173 if (!dbus_message_get_args(reply, error,
1174 DBUS_TYPE_OBJECT_PATH, &path,
1175 DBUS_TYPE_INVALID)) {
1176 log_error("Failed to parse reply: %s", bus_error_message(error));
1181 if (need_daemon_reload(bus, name))
1182 log_warning("Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.",
1183 arg_session ? "--session" : "--system");
1185 if (!arg_no_block) {
1188 if (!(p = strdup(path))) {
1189 log_error("Failed to duplicate path.");
1194 if ((r = set_put(s, p)) < 0) {
1196 log_error("Failed to add path to set.");
1205 dbus_message_unref(m);
1208 dbus_message_unref(reply);
1213 static enum action verb_to_action(const char *verb) {
1214 if (streq(verb, "halt"))
1216 else if (streq(verb, "poweroff"))
1217 return ACTION_POWEROFF;
1218 else if (streq(verb, "reboot"))
1219 return ACTION_REBOOT;
1220 else if (streq(verb, "rescue"))
1221 return ACTION_RESCUE;
1222 else if (streq(verb, "emergency"))
1223 return ACTION_EMERGENCY;
1224 else if (streq(verb, "default"))
1225 return ACTION_DEFAULT;
1227 return ACTION_INVALID;
1230 static int start_unit(DBusConnection *bus, char **args, unsigned n) {
1232 static const char * const table[_ACTION_MAX] = {
1233 [ACTION_HALT] = SPECIAL_HALT_TARGET,
1234 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
1235 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
1236 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
1237 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
1238 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
1239 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
1240 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
1241 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
1242 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET
1247 const char *method, *mode, *one_name;
1251 dbus_error_init(&error);
1255 if (arg_action == ACTION_SYSTEMCTL) {
1257 streq(args[0], "stop") ? "StopUnit" :
1258 streq(args[0], "reload") ? "ReloadUnit" :
1259 streq(args[0], "restart") ? "RestartUnit" :
1260 streq(args[0], "try-restart") ||
1261 streq(args[0], "condrestart") ? "TryRestartUnit" :
1262 streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" :
1263 streq(args[0], "reload-or-try-restart") ||
1264 streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" :
1268 (streq(args[0], "isolate") ||
1269 streq(args[0], "rescue") ||
1270 streq(args[0], "emergency")) ? "isolate" :
1274 one_name = table[verb_to_action(args[0])];
1277 assert(arg_action < ELEMENTSOF(table));
1278 assert(table[arg_action]);
1280 method = "StartUnit";
1282 mode = (arg_action == ACTION_EMERGENCY ||
1283 arg_action == ACTION_RESCUE ||
1284 arg_action == ACTION_RUNLEVEL2 ||
1285 arg_action == ACTION_RUNLEVEL3 ||
1286 arg_action == ACTION_RUNLEVEL4 ||
1287 arg_action == ACTION_RUNLEVEL5) ? "isolate" : "replace";
1289 one_name = table[arg_action];
1292 if (!arg_no_block) {
1293 if ((ret = enable_wait_for_jobs(bus)) < 0) {
1294 log_error("Could not watch jobs: %s", strerror(-ret));
1298 if (!(s = set_new(string_hash_func, string_compare_func))) {
1299 log_error("Failed to allocate set.");
1306 if ((ret = start_unit_one(bus, method, one_name, mode, &error, s)) <= 0)
1309 for (i = 1; i < n; i++)
1310 if ((r = start_unit_one(bus, method, args[i], mode, &error, s)) != 0) {
1311 ret = translate_bus_error_to_exit_status(r, &error);
1312 dbus_error_free(&error);
1317 if ((r = wait_for_jobs(bus, s)) < 0) {
1326 dbus_error_free(&error);
1331 static int start_special(DBusConnection *bus, char **args, unsigned n) {
1337 r = start_unit(bus, args, n);
1340 warn_wall(verb_to_action(args[0]));
1345 static int check_unit(DBusConnection *bus, char **args, unsigned n) {
1346 DBusMessage *m = NULL, *reply = NULL;
1348 *interface = "org.freedesktop.systemd1.Unit",
1349 *property = "ActiveState";
1350 int r = 3; /* According to LSB: "program is not running" */
1357 dbus_error_init(&error);
1359 for (i = 1; i < n; i++) {
1360 const char *path = NULL;
1362 DBusMessageIter iter, sub;
1364 if (!(m = dbus_message_new_method_call(
1365 "org.freedesktop.systemd1",
1366 "/org/freedesktop/systemd1",
1367 "org.freedesktop.systemd1.Manager",
1369 log_error("Could not allocate message.");
1374 if (!dbus_message_append_args(m,
1375 DBUS_TYPE_STRING, &args[i],
1376 DBUS_TYPE_INVALID)) {
1377 log_error("Could not append arguments to message.");
1382 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1384 /* Hmm, cannot figure out anything about this unit... */
1388 dbus_error_free(&error);
1392 if (!dbus_message_get_args(reply, &error,
1393 DBUS_TYPE_OBJECT_PATH, &path,
1394 DBUS_TYPE_INVALID)) {
1395 log_error("Failed to parse reply: %s", bus_error_message(&error));
1400 dbus_message_unref(m);
1401 if (!(m = dbus_message_new_method_call(
1402 "org.freedesktop.systemd1",
1404 "org.freedesktop.DBus.Properties",
1406 log_error("Could not allocate message.");
1411 if (!dbus_message_append_args(m,
1412 DBUS_TYPE_STRING, &interface,
1413 DBUS_TYPE_STRING, &property,
1414 DBUS_TYPE_INVALID)) {
1415 log_error("Could not append arguments to message.");
1420 dbus_message_unref(reply);
1421 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1422 log_error("Failed to issue method call: %s", bus_error_message(&error));
1427 if (!dbus_message_iter_init(reply, &iter) ||
1428 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1429 log_error("Failed to parse reply.");
1434 dbus_message_iter_recurse(&iter, &sub);
1436 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1437 log_error("Failed to parse reply.");
1442 dbus_message_iter_get_basic(&sub, &state);
1447 if (streq(state, "active") || streq(state, "reloading"))
1450 dbus_message_unref(m);
1451 dbus_message_unref(reply);
1457 dbus_message_unref(m);
1460 dbus_message_unref(reply);
1462 dbus_error_free(&error);
1467 typedef struct ExecStatusInfo {
1473 usec_t start_timestamp;
1474 usec_t exit_timestamp;
1479 LIST_FIELDS(struct ExecStatusInfo, exec);
1482 static void exec_status_info_free(ExecStatusInfo *i) {
1490 static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
1491 uint64_t start_timestamp, exit_timestamp;
1492 DBusMessageIter sub2, sub3;
1496 int32_t code, status;
1502 if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
1505 dbus_message_iter_recurse(sub, &sub2);
1507 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
1510 if (!(i->path = strdup(path)))
1513 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
1514 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
1518 dbus_message_iter_recurse(&sub2, &sub3);
1519 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1520 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1521 dbus_message_iter_next(&sub3);
1526 if (!(i->argv = new0(char*, n+1)))
1530 dbus_message_iter_recurse(&sub2, &sub3);
1531 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1534 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1535 dbus_message_iter_get_basic(&sub3, &s);
1536 dbus_message_iter_next(&sub3);
1538 if (!(i->argv[n++] = strdup(s)))
1542 if (!dbus_message_iter_next(&sub2) ||
1543 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
1544 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
1545 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
1546 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
1547 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
1548 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
1552 i->start_timestamp = (usec_t) start_timestamp;
1553 i->exit_timestamp = (usec_t) exit_timestamp;
1554 i->pid = (pid_t) pid;
1561 typedef struct UnitStatusInfo {
1563 const char *load_state;
1564 const char *active_state;
1565 const char *sub_state;
1567 const char *description;
1570 const char *default_control_group;
1572 usec_t inactive_exit_timestamp;
1573 usec_t active_enter_timestamp;
1574 usec_t active_exit_timestamp;
1575 usec_t inactive_enter_timestamp;
1577 bool need_daemon_reload;
1582 const char *status_text;
1584 #ifdef HAVE_SYSV_COMPAT
1588 usec_t start_timestamp;
1589 usec_t exit_timestamp;
1591 int exit_code, exit_status;
1594 unsigned n_accepted;
1595 unsigned n_connections;
1599 const char *sysfs_path;
1601 /* Mount, Automount */
1607 LIST_HEAD(ExecStatusInfo, exec);
1610 static void print_status_info(UnitStatusInfo *i) {
1612 const char *on, *off, *ss;
1614 char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
1615 char since2[FORMAT_TIMESTAMP_MAX], *s2;
1619 /* This shows pretty information about a unit. See
1620 * print_property() for a low-level property printer */
1622 printf("%s", strna(i->id));
1624 if (i->description && !streq_ptr(i->id, i->description))
1625 printf(" - %s", i->description);
1629 if (streq_ptr(i->load_state, "failed")) {
1630 on = ansi_highlight(true);
1631 off = ansi_highlight(false);
1636 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, i->path);
1638 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
1640 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
1642 if (streq_ptr(i->active_state, "failed")) {
1643 on = ansi_highlight(true);
1644 off = ansi_highlight(false);
1645 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
1646 on = ansi_highlight_green(true);
1647 off = ansi_highlight_green(false);
1652 printf("\t Active: %s%s (%s)%s",
1654 strna(i->active_state),
1658 printf("\t Active: %s%s%s",
1660 strna(i->active_state),
1663 timestamp = (streq_ptr(i->active_state, "active") ||
1664 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
1665 (streq_ptr(i->active_state, "inactive") ||
1666 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
1667 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
1668 i->active_exit_timestamp;
1670 s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp);
1671 s2 = format_timestamp(since2, sizeof(since2), timestamp);
1674 printf(" since [%s; %s]\n", s2, s1);
1676 printf(" since [%s]\n", s2);
1681 printf("\t Device: %s\n", i->sysfs_path);
1683 printf("\t Where: %s\n", i->where);
1685 printf("\t What: %s\n", i->what);
1688 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
1690 LIST_FOREACH(exec, p, i->exec) {
1693 /* Only show exited processes here */
1697 t = strv_join(p->argv, " ");
1698 printf("\t Process: %u (%s, code=%s, ", p->pid, strna(t), sigchld_code_to_string(p->code));
1701 if (p->code == CLD_EXITED) {
1704 printf("status=%i", p->status);
1706 #ifdef HAVE_SYSV_COMPAT
1707 if ((c = exit_status_to_string(p->status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
1709 if ((c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD)))
1714 printf("signal=%s", signal_to_string(p->status));
1717 if (i->main_pid == p->pid &&
1718 i->start_timestamp == p->start_timestamp &&
1719 i->exit_timestamp == p->start_timestamp)
1720 /* Let's not show this twice */
1723 if (p->pid == i->control_pid)
1727 if (i->main_pid > 0 || i->control_pid > 0) {
1730 if (i->main_pid > 0) {
1731 printf("Main PID: %u", (unsigned) i->main_pid);
1735 get_process_name(i->main_pid, &t);
1740 } else if (i->exit_code > 0) {
1741 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
1743 if (i->exit_code == CLD_EXITED) {
1746 printf("status=%i", i->exit_status);
1748 #ifdef HAVE_SYSV_COMPAT
1749 if ((c = exit_status_to_string(i->exit_status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
1751 if ((c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD)))
1756 printf("signal=%s", signal_to_string(i->exit_status));
1761 if (i->main_pid > 0 && i->control_pid > 0)
1764 if (i->control_pid > 0) {
1767 printf(" Control: %u", (unsigned) i->control_pid);
1769 get_process_name(i->control_pid, &t);
1780 printf("\t Status: \"%s\"\n", i->status_text);
1782 if (i->default_control_group) {
1785 printf("\t CGroup: %s\n", i->default_control_group);
1787 if ((c = columns()) > 18)
1792 show_cgroup_by_path(i->default_control_group, "\t\t ", c);
1795 if (i->need_daemon_reload)
1796 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
1797 ansi_highlight(true),
1798 ansi_highlight(false),
1799 arg_session ? "--session" : "--system");
1802 static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
1804 switch (dbus_message_iter_get_arg_type(iter)) {
1806 case DBUS_TYPE_STRING: {
1809 dbus_message_iter_get_basic(iter, &s);
1812 if (streq(name, "Id"))
1814 else if (streq(name, "LoadState"))
1816 else if (streq(name, "ActiveState"))
1817 i->active_state = s;
1818 else if (streq(name, "SubState"))
1820 else if (streq(name, "Description"))
1822 else if (streq(name, "FragmentPath"))
1824 #ifdef HAVE_SYSV_COMPAT
1825 else if (streq(name, "SysVPath")) {
1830 else if (streq(name, "DefaultControlGroup"))
1831 i->default_control_group = s;
1832 else if (streq(name, "StatusText"))
1834 else if (streq(name, "SysFSPath"))
1836 else if (streq(name, "Where"))
1838 else if (streq(name, "What"))
1845 case DBUS_TYPE_BOOLEAN: {
1848 dbus_message_iter_get_basic(iter, &b);
1850 if (streq(name, "Accept"))
1852 else if (streq(name, "NeedDaemonReload"))
1853 i->need_daemon_reload = b;
1858 case DBUS_TYPE_UINT32: {
1861 dbus_message_iter_get_basic(iter, &u);
1863 if (streq(name, "MainPID")) {
1865 i->main_pid = (pid_t) u;
1868 } else if (streq(name, "ControlPID"))
1869 i->control_pid = (pid_t) u;
1870 else if (streq(name, "ExecMainPID")) {
1872 i->main_pid = (pid_t) u;
1873 } else if (streq(name, "NAccepted"))
1875 else if (streq(name, "NConnections"))
1876 i->n_connections = u;
1881 case DBUS_TYPE_INT32: {
1884 dbus_message_iter_get_basic(iter, &j);
1886 if (streq(name, "ExecMainCode"))
1887 i->exit_code = (int) j;
1888 else if (streq(name, "ExecMainStatus"))
1889 i->exit_status = (int) j;
1894 case DBUS_TYPE_UINT64: {
1897 dbus_message_iter_get_basic(iter, &u);
1899 if (streq(name, "ExecMainStartTimestamp"))
1900 i->start_timestamp = (usec_t) u;
1901 else if (streq(name, "ExecMainExitTimestamp"))
1902 i->exit_timestamp = (usec_t) u;
1903 else if (streq(name, "ActiveEnterTimestamp"))
1904 i->active_enter_timestamp = (usec_t) u;
1905 else if (streq(name, "InactiveEnterTimestamp"))
1906 i->inactive_enter_timestamp = (usec_t) u;
1907 else if (streq(name, "InactiveExitTimestamp"))
1908 i->inactive_exit_timestamp = (usec_t) u;
1909 else if (streq(name, "ActiveExitTimestamp"))
1910 i->active_exit_timestamp = (usec_t) u;
1915 case DBUS_TYPE_ARRAY: {
1917 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
1918 startswith(name, "Exec")) {
1919 DBusMessageIter sub;
1921 dbus_message_iter_recurse(iter, &sub);
1922 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
1923 ExecStatusInfo *info;
1926 if (!(info = new0(ExecStatusInfo, 1)))
1929 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
1934 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
1936 dbus_message_iter_next(&sub);
1947 static int print_property(const char *name, DBusMessageIter *iter) {
1951 /* This is a low-level property printer, see
1952 * print_status_info() for the nicer output */
1954 if (arg_property && !strv_find(arg_property, name))
1957 switch (dbus_message_iter_get_arg_type(iter)) {
1959 case DBUS_TYPE_STRING: {
1961 dbus_message_iter_get_basic(iter, &s);
1963 if (arg_all || s[0])
1964 printf("%s=%s\n", name, s);
1969 case DBUS_TYPE_BOOLEAN: {
1971 dbus_message_iter_get_basic(iter, &b);
1972 printf("%s=%s\n", name, yes_no(b));
1977 case DBUS_TYPE_UINT64: {
1979 dbus_message_iter_get_basic(iter, &u);
1981 /* Yes, heuristics! But we can change this check
1982 * should it turn out to not be sufficient */
1984 if (strstr(name, "Timestamp")) {
1985 char timestamp[FORMAT_TIMESTAMP_MAX], *t;
1987 if ((t = format_timestamp(timestamp, sizeof(timestamp), u)) || arg_all)
1988 printf("%s=%s\n", name, strempty(t));
1989 } else if (strstr(name, "USec")) {
1990 char timespan[FORMAT_TIMESPAN_MAX];
1992 printf("%s=%s\n", name, format_timespan(timespan, sizeof(timespan), u));
1994 printf("%s=%llu\n", name, (unsigned long long) u);
1999 case DBUS_TYPE_UINT32: {
2001 dbus_message_iter_get_basic(iter, &u);
2003 if (strstr(name, "UMask") || strstr(name, "Mode"))
2004 printf("%s=%04o\n", name, u);
2006 printf("%s=%u\n", name, (unsigned) u);
2011 case DBUS_TYPE_INT32: {
2013 dbus_message_iter_get_basic(iter, &i);
2015 printf("%s=%i\n", name, (int) i);
2019 case DBUS_TYPE_DOUBLE: {
2021 dbus_message_iter_get_basic(iter, &d);
2023 printf("%s=%g\n", name, d);
2027 case DBUS_TYPE_STRUCT: {
2028 DBusMessageIter sub;
2029 dbus_message_iter_recurse(iter, &sub);
2031 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
2034 dbus_message_iter_get_basic(&sub, &u);
2037 printf("%s=%u\n", name, (unsigned) u);
2039 printf("%s=\n", name);
2042 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
2045 dbus_message_iter_get_basic(&sub, &s);
2047 if (arg_all || s[0])
2048 printf("%s=%s\n", name, s);
2056 case DBUS_TYPE_ARRAY:
2058 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
2059 DBusMessageIter sub;
2062 dbus_message_iter_recurse(iter, &sub);
2064 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2065 printf("%s=", name);
2067 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2070 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
2071 dbus_message_iter_get_basic(&sub, &s);
2072 printf("%s%s", space ? " " : "", s);
2075 dbus_message_iter_next(&sub);
2083 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_BYTE) {
2084 DBusMessageIter sub;
2086 dbus_message_iter_recurse(iter, &sub);
2088 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2089 printf("%s=", name);
2091 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2094 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_BYTE);
2095 dbus_message_iter_get_basic(&sub, &u);
2098 dbus_message_iter_next(&sub);
2106 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2107 DBusMessageIter sub, sub2;
2109 dbus_message_iter_recurse(iter, &sub);
2110 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2111 const char *type, *path;
2113 dbus_message_iter_recurse(&sub, &sub2);
2115 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2116 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2117 printf("%s=%s\n", type, path);
2119 dbus_message_iter_next(&sub);
2124 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2125 DBusMessageIter sub, sub2;
2127 dbus_message_iter_recurse(iter, &sub);
2128 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2130 uint64_t value, next_elapse;
2132 dbus_message_iter_recurse(&sub, &sub2);
2134 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
2135 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
2136 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
2137 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
2139 printf("%s={ value=%s ; next_elapse=%s }\n",
2141 format_timespan(timespan1, sizeof(timespan1), value),
2142 format_timespan(timespan2, sizeof(timespan2), next_elapse));
2145 dbus_message_iter_next(&sub);
2150 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
2151 DBusMessageIter sub;
2153 dbus_message_iter_recurse(iter, &sub);
2154 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2155 ExecStatusInfo info;
2158 if (exec_status_info_deserialize(&sub, &info) >= 0) {
2159 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
2162 t = strv_join(info.argv, " ");
2164 printf("%s={ path=%s ; argv[]=%s ; ignore=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
2168 yes_no(info.ignore),
2169 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
2170 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
2171 (unsigned) info. pid,
2172 sigchld_code_to_string(info.code),
2174 info.code == CLD_EXITED ? "" : "/",
2175 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
2181 strv_free(info.argv);
2183 dbus_message_iter_next(&sub);
2193 printf("%s=[unprintable]\n", name);
2198 static int show_one(DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
2199 DBusMessage *m = NULL, *reply = NULL;
2200 const char *interface = "";
2203 DBusMessageIter iter, sub, sub2, sub3;
2204 UnitStatusInfo info;
2212 dbus_error_init(&error);
2214 if (!(m = dbus_message_new_method_call(
2215 "org.freedesktop.systemd1",
2217 "org.freedesktop.DBus.Properties",
2219 log_error("Could not allocate message.");
2224 if (!dbus_message_append_args(m,
2225 DBUS_TYPE_STRING, &interface,
2226 DBUS_TYPE_INVALID)) {
2227 log_error("Could not append arguments to message.");
2232 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2233 log_error("Failed to issue method call: %s", bus_error_message(&error));
2238 if (!dbus_message_iter_init(reply, &iter) ||
2239 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
2240 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
2241 log_error("Failed to parse reply.");
2246 dbus_message_iter_recurse(&iter, &sub);
2253 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2256 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
2257 log_error("Failed to parse reply.");
2262 dbus_message_iter_recurse(&sub, &sub2);
2264 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
2265 log_error("Failed to parse reply.");
2270 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
2271 log_error("Failed to parse reply.");
2276 dbus_message_iter_recurse(&sub2, &sub3);
2278 if (show_properties)
2279 r = print_property(name, &sub3);
2281 r = status_property(name, &sub3, &info);
2284 log_error("Failed to parse reply.");
2289 dbus_message_iter_next(&sub);
2294 if (!show_properties)
2295 print_status_info(&info);
2297 if (!streq_ptr(info.active_state, "active") &&
2298 !streq_ptr(info.active_state, "reloading"))
2299 /* According to LSB: "program not running" */
2302 while ((p = info.exec)) {
2303 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
2304 exec_status_info_free(p);
2309 dbus_message_unref(m);
2312 dbus_message_unref(reply);
2314 dbus_error_free(&error);
2319 static int show(DBusConnection *bus, char **args, unsigned n) {
2320 DBusMessage *m = NULL, *reply = NULL;
2324 bool show_properties, new_line = false;
2329 dbus_error_init(&error);
2331 show_properties = !streq(args[0], "status");
2333 if (show_properties && n <= 1) {
2334 /* If not argument is specified inspect the manager
2337 ret = show_one(bus, "/org/freedesktop/systemd1", show_properties, &new_line);
2341 for (i = 1; i < n; i++) {
2342 const char *path = NULL;
2345 if (safe_atou32(args[i], &id) < 0) {
2347 /* Interpret as unit name */
2349 if (!(m = dbus_message_new_method_call(
2350 "org.freedesktop.systemd1",
2351 "/org/freedesktop/systemd1",
2352 "org.freedesktop.systemd1.Manager",
2354 log_error("Could not allocate message.");
2359 if (!dbus_message_append_args(m,
2360 DBUS_TYPE_STRING, &args[i],
2361 DBUS_TYPE_INVALID)) {
2362 log_error("Could not append arguments to message.");
2367 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2369 if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
2370 log_error("Failed to issue method call: %s", bus_error_message(&error));
2375 dbus_error_free(&error);
2377 dbus_message_unref(m);
2378 if (!(m = dbus_message_new_method_call(
2379 "org.freedesktop.systemd1",
2380 "/org/freedesktop/systemd1",
2381 "org.freedesktop.systemd1.Manager",
2383 log_error("Could not allocate message.");
2388 if (!dbus_message_append_args(m,
2389 DBUS_TYPE_STRING, &args[i],
2390 DBUS_TYPE_INVALID)) {
2391 log_error("Could not append arguments to message.");
2396 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2397 log_error("Failed to issue method call: %s", bus_error_message(&error));
2399 if (dbus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT))
2400 ret = 4; /* According to LSB: "program or service status is unknown" */
2407 } else if (show_properties) {
2409 /* Interpret as job id */
2411 if (!(m = dbus_message_new_method_call(
2412 "org.freedesktop.systemd1",
2413 "/org/freedesktop/systemd1",
2414 "org.freedesktop.systemd1.Manager",
2416 log_error("Could not allocate message.");
2421 if (!dbus_message_append_args(m,
2422 DBUS_TYPE_UINT32, &id,
2423 DBUS_TYPE_INVALID)) {
2424 log_error("Could not append arguments to message.");
2429 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2430 log_error("Failed to issue method call: %s", bus_error_message(&error));
2436 /* Interpret as PID */
2438 if (!(m = dbus_message_new_method_call(
2439 "org.freedesktop.systemd1",
2440 "/org/freedesktop/systemd1",
2441 "org.freedesktop.systemd1.Manager",
2443 log_error("Could not allocate message.");
2448 if (!dbus_message_append_args(m,
2449 DBUS_TYPE_UINT32, &id,
2450 DBUS_TYPE_INVALID)) {
2451 log_error("Could not append arguments to message.");
2456 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2457 log_error("Failed to issue method call: %s", bus_error_message(&error));
2463 if (!dbus_message_get_args(reply, &error,
2464 DBUS_TYPE_OBJECT_PATH, &path,
2465 DBUS_TYPE_INVALID)) {
2466 log_error("Failed to parse reply: %s", bus_error_message(&error));
2471 if ((r = show_one(bus, path, show_properties, &new_line)) != 0)
2474 dbus_message_unref(m);
2475 dbus_message_unref(reply);
2481 dbus_message_unref(m);
2484 dbus_message_unref(reply);
2486 dbus_error_free(&error);
2491 static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) {
2493 DBusMessage *m = NULL, *reply = NULL;
2498 dbus_error_init(&error);
2500 log_debug("Got D-Bus request: %s.%s() on %s",
2501 dbus_message_get_interface(message),
2502 dbus_message_get_member(message),
2503 dbus_message_get_path(message));
2505 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
2506 log_error("Warning! D-Bus connection terminated.");
2507 dbus_connection_close(connection);
2509 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitNew") ||
2510 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitRemoved")) {
2511 const char *id, *path;
2513 if (!dbus_message_get_args(message, &error,
2514 DBUS_TYPE_STRING, &id,
2515 DBUS_TYPE_OBJECT_PATH, &path,
2517 log_error("Failed to parse message: %s", bus_error_message(&error));
2518 else if (streq(dbus_message_get_member(message), "UnitNew"))
2519 printf("Unit %s added.\n", id);
2521 printf("Unit %s removed.\n", id);
2523 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew") ||
2524 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
2528 if (!dbus_message_get_args(message, &error,
2529 DBUS_TYPE_UINT32, &id,
2530 DBUS_TYPE_OBJECT_PATH, &path,
2532 log_error("Failed to parse message: %s", bus_error_message(&error));
2533 else if (streq(dbus_message_get_member(message), "JobNew"))
2534 printf("Job %u added.\n", id);
2536 printf("Job %u removed.\n", id);
2539 } else if (dbus_message_is_signal(message, "org.freedesktop.DBus.Properties", "PropertiesChanged")) {
2541 const char *path, *interface, *property = "Id";
2542 DBusMessageIter iter, sub;
2544 path = dbus_message_get_path(message);
2546 if (!dbus_message_get_args(message, &error,
2547 DBUS_TYPE_STRING, &interface,
2548 DBUS_TYPE_INVALID)) {
2549 log_error("Failed to parse message: %s", bus_error_message(&error));
2553 if (!streq(interface, "org.freedesktop.systemd1.Job") &&
2554 !streq(interface, "org.freedesktop.systemd1.Unit"))
2557 if (!(m = dbus_message_new_method_call(
2558 "org.freedesktop.systemd1",
2560 "org.freedesktop.DBus.Properties",
2562 log_error("Could not allocate message.");
2566 if (!dbus_message_append_args(m,
2567 DBUS_TYPE_STRING, &interface,
2568 DBUS_TYPE_STRING, &property,
2569 DBUS_TYPE_INVALID)) {
2570 log_error("Could not append arguments to message.");
2574 if (!(reply = dbus_connection_send_with_reply_and_block(connection, m, -1, &error))) {
2575 log_error("Failed to issue method call: %s", bus_error_message(&error));
2579 if (!dbus_message_iter_init(reply, &iter) ||
2580 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2581 log_error("Failed to parse reply.");
2585 dbus_message_iter_recurse(&iter, &sub);
2587 if (streq(interface, "org.freedesktop.systemd1.Unit")) {
2590 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2591 log_error("Failed to parse reply.");
2595 dbus_message_iter_get_basic(&sub, &id);
2596 printf("Unit %s changed.\n", id);
2600 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT32) {
2601 log_error("Failed to parse reply.");
2605 dbus_message_iter_get_basic(&sub, &id);
2606 printf("Job %u changed.\n", id);
2612 dbus_message_unref(m);
2615 dbus_message_unref(reply);
2617 dbus_error_free(&error);
2618 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2622 dbus_message_unref(m);
2625 dbus_message_unref(reply);
2627 dbus_error_free(&error);
2628 return DBUS_HANDLER_RESULT_NEED_MEMORY;
2631 static int monitor(DBusConnection *bus, char **args, unsigned n) {
2632 DBusMessage *m = NULL, *reply = NULL;
2636 dbus_error_init(&error);
2639 dbus_bus_add_match(bus,
2641 "sender='org.freedesktop.systemd1',"
2642 "interface='org.freedesktop.systemd1.Manager',"
2643 "path='/org/freedesktop/systemd1'",
2646 if (dbus_error_is_set(&error)) {
2647 log_error("Failed to add match: %s", bus_error_message(&error));
2652 dbus_bus_add_match(bus,
2654 "sender='org.freedesktop.systemd1',"
2655 "interface='org.freedesktop.DBus.Properties',"
2656 "member='PropertiesChanged'",
2659 if (dbus_error_is_set(&error)) {
2660 log_error("Failed to add match: %s", bus_error_message(&error));
2666 if (!dbus_connection_add_filter(bus, monitor_filter, NULL, NULL)) {
2667 log_error("Failed to add filter.");
2672 if (!(m = dbus_message_new_method_call(
2673 "org.freedesktop.systemd1",
2674 "/org/freedesktop/systemd1",
2675 "org.freedesktop.systemd1.Manager",
2677 log_error("Could not allocate message.");
2682 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2683 log_error("Failed to issue method call: %s", bus_error_message(&error));
2688 while (dbus_connection_read_write_dispatch(bus, -1))
2695 /* This is slightly dirty, since we don't undo the filter or the matches. */
2698 dbus_message_unref(m);
2701 dbus_message_unref(reply);
2703 dbus_error_free(&error);
2708 static int dump(DBusConnection *bus, char **args, unsigned n) {
2709 DBusMessage *m = NULL, *reply = NULL;
2714 dbus_error_init(&error);
2716 if (!(m = dbus_message_new_method_call(
2717 "org.freedesktop.systemd1",
2718 "/org/freedesktop/systemd1",
2719 "org.freedesktop.systemd1.Manager",
2721 log_error("Could not allocate message.");
2725 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2726 log_error("Failed to issue method call: %s", bus_error_message(&error));
2731 if (!dbus_message_get_args(reply, &error,
2732 DBUS_TYPE_STRING, &text,
2733 DBUS_TYPE_INVALID)) {
2734 log_error("Failed to parse reply: %s", bus_error_message(&error));
2739 fputs(text, stdout);
2745 dbus_message_unref(m);
2748 dbus_message_unref(reply);
2750 dbus_error_free(&error);
2755 static int snapshot(DBusConnection *bus, char **args, unsigned n) {
2756 DBusMessage *m = NULL, *reply = NULL;
2759 const char *name = "", *path, *id;
2760 dbus_bool_t cleanup = FALSE;
2761 DBusMessageIter iter, sub;
2763 *interface = "org.freedesktop.systemd1.Unit",
2766 dbus_error_init(&error);
2768 if (!(m = dbus_message_new_method_call(
2769 "org.freedesktop.systemd1",
2770 "/org/freedesktop/systemd1",
2771 "org.freedesktop.systemd1.Manager",
2772 "CreateSnapshot"))) {
2773 log_error("Could not allocate message.");
2780 if (!dbus_message_append_args(m,
2781 DBUS_TYPE_STRING, &name,
2782 DBUS_TYPE_BOOLEAN, &cleanup,
2783 DBUS_TYPE_INVALID)) {
2784 log_error("Could not append arguments to message.");
2789 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2790 log_error("Failed to issue method call: %s", bus_error_message(&error));
2795 if (!dbus_message_get_args(reply, &error,
2796 DBUS_TYPE_OBJECT_PATH, &path,
2797 DBUS_TYPE_INVALID)) {
2798 log_error("Failed to parse reply: %s", bus_error_message(&error));
2803 dbus_message_unref(m);
2804 if (!(m = dbus_message_new_method_call(
2805 "org.freedesktop.systemd1",
2807 "org.freedesktop.DBus.Properties",
2809 log_error("Could not allocate message.");
2813 if (!dbus_message_append_args(m,
2814 DBUS_TYPE_STRING, &interface,
2815 DBUS_TYPE_STRING, &property,
2816 DBUS_TYPE_INVALID)) {
2817 log_error("Could not append arguments to message.");
2822 dbus_message_unref(reply);
2823 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2824 log_error("Failed to issue method call: %s", bus_error_message(&error));
2829 if (!dbus_message_iter_init(reply, &iter) ||
2830 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2831 log_error("Failed to parse reply.");
2836 dbus_message_iter_recurse(&iter, &sub);
2838 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2839 log_error("Failed to parse reply.");
2844 dbus_message_iter_get_basic(&sub, &id);
2852 dbus_message_unref(m);
2855 dbus_message_unref(reply);
2857 dbus_error_free(&error);
2862 static int delete_snapshot(DBusConnection *bus, char **args, unsigned n) {
2863 DBusMessage *m = NULL, *reply = NULL;
2871 dbus_error_init(&error);
2873 for (i = 1; i < n; i++) {
2874 const char *path = NULL;
2876 if (!(m = dbus_message_new_method_call(
2877 "org.freedesktop.systemd1",
2878 "/org/freedesktop/systemd1",
2879 "org.freedesktop.systemd1.Manager",
2881 log_error("Could not allocate message.");
2886 if (!dbus_message_append_args(m,
2887 DBUS_TYPE_STRING, &args[i],
2888 DBUS_TYPE_INVALID)) {
2889 log_error("Could not append arguments to message.");
2894 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2895 log_error("Failed to issue method call: %s", bus_error_message(&error));
2900 if (!dbus_message_get_args(reply, &error,
2901 DBUS_TYPE_OBJECT_PATH, &path,
2902 DBUS_TYPE_INVALID)) {
2903 log_error("Failed to parse reply: %s", bus_error_message(&error));
2908 dbus_message_unref(m);
2909 if (!(m = dbus_message_new_method_call(
2910 "org.freedesktop.systemd1",
2912 "org.freedesktop.systemd1.Snapshot",
2914 log_error("Could not allocate message.");
2919 dbus_message_unref(reply);
2920 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2921 log_error("Failed to issue method call: %s", bus_error_message(&error));
2926 dbus_message_unref(m);
2927 dbus_message_unref(reply);
2935 dbus_message_unref(m);
2938 dbus_message_unref(reply);
2940 dbus_error_free(&error);
2945 static int daemon_reload(DBusConnection *bus, char **args, unsigned n) {
2946 DBusMessage *m = NULL, *reply = NULL;
2951 dbus_error_init(&error);
2953 if (arg_action == ACTION_RELOAD)
2955 else if (arg_action == ACTION_REEXEC)
2956 method = "Reexecute";
2958 assert(arg_action == ACTION_SYSTEMCTL);
2961 streq(args[0], "clear-jobs") ||
2962 streq(args[0], "cancel") ? "ClearJobs" :
2963 streq(args[0], "daemon-reexec") ? "Reexecute" :
2964 streq(args[0], "reset-failed") ? "ResetFailed" :
2965 streq(args[0], "daemon-exit") ? "Exit" :
2969 if (!(m = dbus_message_new_method_call(
2970 "org.freedesktop.systemd1",
2971 "/org/freedesktop/systemd1",
2972 "org.freedesktop.systemd1.Manager",
2974 log_error("Could not allocate message.");
2978 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2980 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
2981 /* There's always a fallback possible for
2982 * legacy actions. */
2987 log_error("Failed to issue method call: %s", bus_error_message(&error));
2996 dbus_message_unref(m);
2999 dbus_message_unref(reply);
3001 dbus_error_free(&error);
3006 static int reset_failed(DBusConnection *bus, char **args, unsigned n) {
3007 DBusMessage *m = NULL, *reply = NULL;
3013 dbus_error_init(&error);
3016 return daemon_reload(bus, args, n);
3018 for (i = 1; i < n; i++) {
3020 if (!(m = dbus_message_new_method_call(
3021 "org.freedesktop.systemd1",
3022 "/org/freedesktop/systemd1",
3023 "org.freedesktop.systemd1.Manager",
3024 "ResetFailedUnit"))) {
3025 log_error("Could not allocate message.");
3030 if (!dbus_message_append_args(m,
3031 DBUS_TYPE_STRING, args + i,
3032 DBUS_TYPE_INVALID)) {
3033 log_error("Could not append arguments to message.");
3038 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3039 log_error("Failed to issue method call: %s", bus_error_message(&error));
3044 dbus_message_unref(m);
3045 dbus_message_unref(reply);
3053 dbus_message_unref(m);
3056 dbus_message_unref(reply);
3058 dbus_error_free(&error);
3063 static int show_enviroment(DBusConnection *bus, char **args, unsigned n) {
3064 DBusMessage *m = NULL, *reply = NULL;
3066 DBusMessageIter iter, sub, sub2;
3069 *interface = "org.freedesktop.systemd1.Manager",
3070 *property = "Environment";
3072 dbus_error_init(&error);
3074 if (!(m = dbus_message_new_method_call(
3075 "org.freedesktop.systemd1",
3076 "/org/freedesktop/systemd1",
3077 "org.freedesktop.DBus.Properties",
3079 log_error("Could not allocate message.");
3083 if (!dbus_message_append_args(m,
3084 DBUS_TYPE_STRING, &interface,
3085 DBUS_TYPE_STRING, &property,
3086 DBUS_TYPE_INVALID)) {
3087 log_error("Could not append arguments to message.");
3092 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3093 log_error("Failed to issue method call: %s", bus_error_message(&error));
3098 if (!dbus_message_iter_init(reply, &iter) ||
3099 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3100 log_error("Failed to parse reply.");
3105 dbus_message_iter_recurse(&iter, &sub);
3107 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3108 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3109 log_error("Failed to parse reply.");
3114 dbus_message_iter_recurse(&sub, &sub2);
3116 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3119 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3120 log_error("Failed to parse reply.");
3125 dbus_message_iter_get_basic(&sub2, &text);
3126 printf("%s\n", text);
3128 dbus_message_iter_next(&sub2);
3135 dbus_message_unref(m);
3138 dbus_message_unref(reply);
3140 dbus_error_free(&error);
3145 static int set_environment(DBusConnection *bus, char **args, unsigned n) {
3146 DBusMessage *m = NULL, *reply = NULL;
3150 DBusMessageIter iter, sub;
3153 dbus_error_init(&error);
3155 method = streq(args[0], "set-environment")
3157 : "UnsetEnvironment";
3159 if (!(m = dbus_message_new_method_call(
3160 "org.freedesktop.systemd1",
3161 "/org/freedesktop/systemd1",
3162 "org.freedesktop.systemd1.Manager",
3165 log_error("Could not allocate message.");
3169 dbus_message_iter_init_append(m, &iter);
3171 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
3172 log_error("Could not append arguments to message.");
3177 for (i = 1; i < n; i++)
3178 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &args[i])) {
3179 log_error("Could not append arguments to message.");
3184 if (!dbus_message_iter_close_container(&iter, &sub)) {
3185 log_error("Could not append arguments to message.");
3190 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3191 log_error("Failed to issue method call: %s", bus_error_message(&error));
3200 dbus_message_unref(m);
3203 dbus_message_unref(reply);
3205 dbus_error_free(&error);
3218 static Hashmap *will_install = NULL, *have_installed = NULL;
3219 static Set *remove_symlinks_to = NULL;
3221 static void install_info_free(InstallInfo *i) {
3226 strv_free(i->aliases);
3227 strv_free(i->wanted_by);
3231 static void install_info_hashmap_free(Hashmap *m) {
3234 while ((i = hashmap_steal_first(m)))
3235 install_info_free(i);
3240 static bool unit_name_valid(const char *name) {
3242 /* This is a minimal version of unit_name_valid() from
3248 if (ignore_file(name))
3254 static int install_info_add(const char *name) {
3258 assert(will_install);
3260 if (!unit_name_valid(name))
3263 if (hashmap_get(have_installed, name) ||
3264 hashmap_get(will_install, name))
3267 if (!(i = new0(InstallInfo, 1))) {
3272 if (!(i->name = strdup(name))) {
3277 if ((r = hashmap_put(will_install, i->name, i)) < 0)
3284 install_info_free(i);
3289 static int config_parse_also(
3290 const char *filename,
3292 const char *section,
3306 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
3310 if (!(n = strndup(w, l)))
3313 r = install_info_add(n);
3323 static int mark_symlink_for_removal(const char *p) {
3328 assert(path_is_absolute(p));
3330 if (!remove_symlinks_to)
3333 if (!(n = strdup(p)))
3336 path_kill_slashes(n);
3338 if ((r = set_put(remove_symlinks_to, n)) < 0) {
3340 return r == -EEXIST ? 0 : r;
3346 static int remove_marked_symlinks_fd(int fd, const char *config_path, const char *root, bool *deleted) {
3355 if (!(d = fdopendir(fd))) {
3356 close_nointr_nofail(fd);
3362 while ((de = readdir(d))) {
3363 bool is_dir = false, is_link = false;
3365 if (ignore_file(de->d_name))
3368 if (de->d_type == DT_LNK)
3370 else if (de->d_type == DT_DIR)
3372 else if (de->d_type == DT_UNKNOWN) {
3375 if (fstatat(fd, de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) {
3376 log_error("Failed to stat %s/%s: %m", root, de->d_name);
3383 is_link = S_ISLNK(st.st_mode);
3384 is_dir = S_ISDIR(st.st_mode);
3392 if ((nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0) {
3393 log_error("Failed to open %s/%s: %m", root, de->d_name);
3400 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3401 log_error("Failed to allocate directory string.");
3402 close_nointr_nofail(nfd);
3407 /* This will close nfd, regardless whether it succeeds or not */
3408 q = remove_marked_symlinks_fd(nfd, config_path, p, deleted);
3414 } else if (is_link) {
3418 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3419 log_error("Failed to allocate symlink string.");
3424 if ((q = readlink_and_make_absolute(p, &dest)) < 0) {
3425 log_error("Cannot read symlink %s: %s", p, strerror(-q));
3433 if ((c = canonicalize_file_name(dest))) {
3434 /* This might fail if the destination
3435 * is already removed */
3441 path_kill_slashes(dest);
3442 if (set_get(remove_symlinks_to, dest)) {
3445 log_info("rm '%s'", p);
3447 if (unlink(p) < 0) {
3448 log_error("Cannot unlink symlink %s: %m", p);
3453 rmdir_parents(p, config_path);
3454 path_kill_slashes(p);
3456 if (!set_get(remove_symlinks_to, p)) {
3458 if ((r = mark_symlink_for_removal(p)) < 0) {
3477 static int remove_marked_symlinks(const char *config_path) {
3481 assert(config_path);
3483 if (set_size(remove_symlinks_to) <= 0)
3486 if ((fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0)
3493 if ((cfd = dup(fd)) < 0) {
3498 /* This takes possession of cfd and closes it */
3499 if ((q = remove_marked_symlinks_fd(cfd, config_path, config_path, &deleted)) < 0) {
3505 close_nointr_nofail(fd);
3510 static int create_symlink(const char *verb, const char *old_path, const char *new_path) {
3517 if (streq(verb, "enable")) {
3520 mkdir_parents(new_path, 0755);
3522 if (symlink(old_path, new_path) >= 0) {
3525 log_info("ln -s '%s' '%s'", old_path, new_path);
3530 if (errno != EEXIST) {
3531 log_error("Cannot link %s to %s: %m", old_path, new_path);
3535 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3537 if (errno == EINVAL) {
3538 log_error("Cannot link %s to %s, file exists already and is not a symlink.", old_path, new_path);
3542 log_error("readlink() failed: %s", strerror(-r));
3546 if (streq(dest, old_path)) {
3552 log_error("Cannot link %s to %s, symlink exists already and points to %s.", old_path, new_path, dest);
3561 log_info("ln -s '%s' '%s'", old_path, new_path);
3563 if (symlink(old_path, new_path) >= 0)
3566 log_error("Cannot link %s to %s: %m", old_path, new_path);
3569 } else if (streq(verb, "disable")) {
3572 if ((r = mark_symlink_for_removal(old_path)) < 0)
3575 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3576 if (errno == ENOENT)
3579 if (errno == EINVAL) {
3580 log_warning("File %s not a symlink, ignoring.", old_path);
3584 log_error("readlink() failed: %s", strerror(-r));
3588 if (!streq(dest, old_path)) {
3589 log_warning("File %s not a symlink to %s but points to %s, ignoring.", new_path, old_path, dest);
3596 if ((r = mark_symlink_for_removal(new_path)) < 0)
3600 log_info("rm '%s'", new_path);
3602 if (unlink(new_path) >= 0)
3605 log_error("Cannot unlink %s: %m", new_path);
3608 } else if (streq(verb, "is-enabled")) {
3611 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3613 if (errno == ENOENT || errno == EINVAL)
3616 log_error("readlink() failed: %s", strerror(-r));
3620 if (streq(dest, old_path)) {
3628 assert_not_reached("Unknown action.");
3631 static int install_info_symlink_alias(const char *verb, InstallInfo *i, const char *config_path) {
3633 char *alias_path = NULL;
3638 assert(config_path);
3640 STRV_FOREACH(s, i->aliases) {
3642 if (!unit_name_valid(*s)) {
3643 log_error("Invalid name %s.", *s);
3649 if (!(alias_path = path_make_absolute(*s, config_path))) {
3650 log_error("Out of memory");
3655 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3658 if (streq(verb, "disable"))
3659 rmdir_parents(alias_path, config_path);
3670 static int install_info_symlink_wants(const char *verb, InstallInfo *i, const char *config_path) {
3672 char *alias_path = NULL;
3677 assert(config_path);
3679 STRV_FOREACH(s, i->wanted_by) {
3680 if (!unit_name_valid(*s)) {
3681 log_error("Invalid name %s.", *s);
3689 if (asprintf(&alias_path, "%s/%s.wants/%s", config_path, *s, i->name) < 0) {
3690 log_error("Out of memory");
3695 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3698 if (streq(verb, "disable"))
3699 rmdir_parents(alias_path, config_path);
3710 static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo *i, const char *config_path) {
3712 const ConfigItem items[] = {
3713 { "Alias", config_parse_strv, &i->aliases, "Install" },
3714 { "WantedBy", config_parse_strv, &i->wanted_by, "Install" },
3715 { "Also", config_parse_also, NULL, "Install" },
3717 { NULL, NULL, NULL, NULL }
3721 char *filename = NULL;
3728 STRV_FOREACH(p, paths->unit_path) {
3731 if (!(filename = path_make_absolute(i->name, *p))) {
3732 log_error("Out of memory");
3736 /* Ensure that we don't follow symlinks */
3737 if ((fd = open(filename, O_RDONLY|O_CLOEXEC|O_NOFOLLOW|O_NOCTTY)) >= 0)
3738 if ((f = fdopen(fd, "re")))
3741 if (errno == ELOOP) {
3742 log_error("Refusing to operate on symlinks, please pass unit names or absolute paths to unit files.");
3747 if (errno != ENOENT) {
3748 log_error("Failed to open %s: %m", filename);
3758 log_error("Couldn't find %s.", i->name);
3764 if ((r = config_parse(filename, f, NULL, items, true, i)) < 0) {
3771 if ((r = install_info_symlink_alias(verb, i, config_path)) != 0)
3774 if ((r = install_info_symlink_wants(verb, i, config_path)) != 0)
3777 if ((r = mark_symlink_for_removal(filename)) < 0)
3780 if ((r = remove_marked_symlinks(config_path)) < 0)
3786 static char *get_config_path(void) {
3788 if (arg_session && arg_global)
3789 return strdup(SESSION_CONFIG_UNIT_PATH);
3794 if (session_config_home(&p) < 0)
3800 return strdup(SYSTEM_CONFIG_UNIT_PATH);
3803 static int enable_unit(DBusConnection *bus, char **args, unsigned n) {
3807 char *config_path = NULL;
3810 const char *verb = args[0];
3812 dbus_error_init(&error);
3815 if ((r = lookup_paths_init(&paths, arg_session ? MANAGER_SESSION : MANAGER_SYSTEM)) < 0) {
3816 log_error("Failed to determine lookup paths: %s", strerror(-r));
3820 if (!(config_path = get_config_path())) {
3821 log_error("Failed to determine config path");
3826 will_install = hashmap_new(string_hash_func, string_compare_func);
3827 have_installed = hashmap_new(string_hash_func, string_compare_func);
3829 if (!will_install || !have_installed) {
3830 log_error("Failed to allocate unit sets.");
3835 if (!arg_defaults && streq(verb, "disable"))
3836 if (!(remove_symlinks_to = set_new(string_hash_func, string_compare_func))) {
3837 log_error("Failed to allocate symlink sets.");
3842 for (j = 1; j < n; j++)
3843 if ((r = install_info_add(args[j])) < 0)
3846 while ((i = hashmap_first(will_install))) {
3849 assert_se(hashmap_move_one(have_installed, will_install, i->name) == 0);
3851 if ((q = install_info_apply(verb, &paths, i, config_path)) != 0) {
3859 /* In test mode and found something */
3865 if (streq(verb, "is-enabled"))
3866 r = r > 0 ? 0 : -ENOENT;
3868 /* Don't try to reload anything if the user asked us to not do this */
3870 /* Don't try to reload anything when updating a unit globally */
3872 /* Don't try to reload anything if we are called for system changes but the system wasn't booted with systemd */
3873 (arg_session || sd_booted() > 0) &&
3874 /* Don't try to reload anything if we are running in a chroot environment */
3875 (arg_session || running_in_chroot() <= 0) ) {
3878 if ((q = daemon_reload(bus, args, n)) < 0)
3883 install_info_hashmap_free(will_install);
3884 install_info_hashmap_free(have_installed);
3886 set_free_free(remove_symlinks_to);
3888 lookup_paths_free(&paths);
3895 static int systemctl_help(void) {
3897 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
3898 "Send control commands to or query the systemd manager.\n\n"
3899 " -h --help Show this help\n"
3900 " --version Show package version\n"
3901 " -t --type=TYPE List only units of a particular type\n"
3902 " -p --property=NAME Show only properties by this name\n"
3903 " -a --all Show all units/properties, including dead/empty ones\n"
3904 " --full Don't ellipsize unit names on output\n"
3905 " --fail When queueing a new job, fail if conflicting jobs are\n"
3907 " -q --quiet Suppress output\n"
3908 " --no-block Do not wait until operation finished\n"
3909 " --system Connect to system bus\n"
3910 " --session Connect to session bus\n"
3911 " --order When generating graph for dot, show only order\n"
3912 " --require When generating graph for dot, show only requirement\n"
3913 " --no-wall Don't send wall message before halt/power-off/reboot\n"
3914 " --global Enable/disable unit files globally\n"
3915 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
3917 " --force When enabling unit files, override existing symlinks\n"
3918 " --defaults When disabling unit files, remove default symlinks only\n\n"
3920 " list-units List units\n"
3921 " start [NAME...] Start (activate) one or more units\n"
3922 " stop [NAME...] Stop (deactivate) one or more units\n"
3923 " reload [NAME...] Reload one or more units\n"
3924 " restart [NAME...] Start or restart one or more units\n"
3925 " try-restart [NAME...] Restart one or more units if active\n"
3926 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
3927 " otherwise start or restart\n"
3928 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
3929 " otherwise restart if active\n"
3930 " isolate [NAME] Start one unit and stop all others\n"
3931 " is-active [NAME...] Check whether units are active\n"
3932 " status [NAME...|PID...] Show runtime status of one or more units\n"
3933 " show [NAME...|JOB...] Show properties of one or more\n"
3934 " units/jobs or the manager\n"
3935 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
3937 " enable [NAME...] Enable one or more unit files\n"
3938 " disable [NAME...] Disable one or more unit files\n"
3939 " is-enabled [NAME...] Check whether unit files are enabled\n"
3940 " load [NAME...] Load one or more units\n"
3941 " list-jobs List jobs\n"
3942 " cancel [JOB...] Cancel all, one, or more jobs\n"
3943 " monitor Monitor unit/job changes\n"
3944 " dump Dump server status\n"
3945 " dot Dump dependency graph for dot(1)\n"
3946 " snapshot [NAME] Create a snapshot\n"
3947 " delete [NAME...] Remove one or more snapshots\n"
3948 " daemon-reload Reload systemd manager configuration\n"
3949 " daemon-reexec Reexecute systemd manager\n"
3950 " daemon-exit Ask the systemd manager to quit\n"
3951 " show-environment Dump environment\n"
3952 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
3953 " unset-environment [NAME...] Unset one or more environment variables\n"
3954 " halt Shut down and halt the system\n"
3955 " poweroff Shut down and power-off the system\n"
3956 " reboot Shut down and reboot the system\n"
3957 " rescue Enter system rescue mode\n"
3958 " emergency Enter system emergency mode\n"
3959 " default Enter system default mode\n",
3960 program_invocation_short_name);
3965 static int halt_help(void) {
3967 printf("%s [OPTIONS...]\n\n"
3968 "%s the system.\n\n"
3969 " --help Show this help\n"
3970 " --halt Halt the machine\n"
3971 " -p --poweroff Switch off the machine\n"
3972 " --reboot Reboot the machine\n"
3973 " -f --force Force immediate halt/power-off/reboot\n"
3974 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
3975 " -d --no-wtmp Don't write wtmp record\n"
3976 " -n --no-sync Don't sync before halt/power-off/reboot\n"
3977 " --no-wall Don't send wall message before halt/power-off/reboot\n",
3978 program_invocation_short_name,
3979 arg_action == ACTION_REBOOT ? "Reboot" :
3980 arg_action == ACTION_POWEROFF ? "Power off" :
3986 static int shutdown_help(void) {
3988 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
3989 "Shut down the system.\n\n"
3990 " --help Show this help\n"
3991 " -H --halt Halt the machine\n"
3992 " -P --poweroff Power-off the machine\n"
3993 " -r --reboot Reboot the machine\n"
3994 " -h Equivalent to --poweroff, overriden by --halt\n"
3995 " -k Don't halt/power-off/reboot, just send warnings\n"
3996 " --no-wall Don't send wall message before halt/power-off/reboot\n"
3997 " -c Cancel a pending shutdown\n",
3998 program_invocation_short_name);
4003 static int telinit_help(void) {
4005 printf("%s [OPTIONS...] {COMMAND}\n\n"
4006 "Send control commands to the init daemon.\n\n"
4007 " --help Show this help\n"
4008 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
4010 " 0 Power-off the machine\n"
4011 " 6 Reboot the machine\n"
4012 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4013 " 1, s, S Enter rescue mode\n"
4014 " q, Q Reload init daemon configuration\n"
4015 " u, U Reexecute init daemon\n",
4016 program_invocation_short_name);
4021 static int runlevel_help(void) {
4023 printf("%s [OPTIONS...]\n\n"
4024 "Prints the previous and current runlevel of the init system.\n\n"
4025 " --help Show this help\n",
4026 program_invocation_short_name);
4031 static int systemctl_parse_argv(int argc, char *argv[]) {
4049 static const struct option options[] = {
4050 { "help", no_argument, NULL, 'h' },
4051 { "version", no_argument, NULL, ARG_VERSION },
4052 { "type", required_argument, NULL, 't' },
4053 { "property", required_argument, NULL, 'p' },
4054 { "all", no_argument, NULL, 'a' },
4055 { "full", no_argument, NULL, ARG_FULL },
4056 { "fail", no_argument, NULL, ARG_FAIL },
4057 { "session", no_argument, NULL, ARG_SESSION },
4058 { "system", no_argument, NULL, ARG_SYSTEM },
4059 { "global", no_argument, NULL, ARG_GLOBAL },
4060 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4061 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4062 { "quiet", no_argument, NULL, 'q' },
4063 { "order", no_argument, NULL, ARG_ORDER },
4064 { "require", no_argument, NULL, ARG_REQUIRE },
4065 { "force", no_argument, NULL, ARG_FORCE },
4066 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
4067 { "defaults", no_argument, NULL, ARG_DEFAULTS },
4068 { NULL, 0, NULL, 0 }
4076 while ((c = getopt_long(argc, argv, "ht:p:aq", options, NULL)) >= 0) {
4085 puts(PACKAGE_STRING);
4087 puts(SYSTEMD_FEATURES);
4097 if (!(l = strv_append(arg_property, optarg)))
4100 strv_free(arg_property);
4103 /* If the user asked for a particular
4104 * property, show it to him, even if it is
4123 arg_session = false;
4127 arg_no_block = true;
4135 arg_dot = DOT_ORDER;
4139 arg_dot = DOT_REQUIRE;
4155 arg_no_reload = true;
4164 arg_defaults = true;
4171 log_error("Unknown option code %c", c);
4179 static int halt_parse_argv(int argc, char *argv[]) {
4188 static const struct option options[] = {
4189 { "help", no_argument, NULL, ARG_HELP },
4190 { "halt", no_argument, NULL, ARG_HALT },
4191 { "poweroff", no_argument, NULL, 'p' },
4192 { "reboot", no_argument, NULL, ARG_REBOOT },
4193 { "force", no_argument, NULL, 'f' },
4194 { "wtmp-only", no_argument, NULL, 'w' },
4195 { "no-wtmp", no_argument, NULL, 'd' },
4196 { "no-sync", no_argument, NULL, 'n' },
4197 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4198 { NULL, 0, NULL, 0 }
4206 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4207 if (runlevel == '0' || runlevel == '6')
4208 arg_immediate = true;
4210 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4218 arg_action = ACTION_HALT;
4222 if (arg_action != ACTION_REBOOT)
4223 arg_action = ACTION_POWEROFF;
4227 arg_action = ACTION_REBOOT;
4231 arg_immediate = true;
4252 /* Compatibility nops */
4259 log_error("Unknown option code %c", c);
4264 if (optind < argc) {
4265 log_error("Too many arguments.");
4272 static int parse_time_spec(const char *t, usec_t *_u) {
4276 if (streq(t, "now"))
4278 else if (t[0] == '+') {
4281 if (safe_atou64(t + 1, &u) < 0)
4284 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4293 hour = strtol(t, &e, 10);
4294 if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
4297 minute = strtol(e+1, &e, 10);
4298 if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
4301 n = now(CLOCK_REALTIME);
4302 s = (time_t) (n / USEC_PER_SEC);
4305 assert_se(localtime_r(&s, &tm));
4307 tm.tm_hour = (int) hour;
4308 tm.tm_min = (int) minute;
4311 assert_se(s = mktime(&tm));
4313 *_u = (usec_t) s * USEC_PER_SEC;
4316 *_u += USEC_PER_DAY;
4322 static int shutdown_parse_argv(int argc, char *argv[]) {
4329 static const struct option options[] = {
4330 { "help", no_argument, NULL, ARG_HELP },
4331 { "halt", no_argument, NULL, 'H' },
4332 { "poweroff", no_argument, NULL, 'P' },
4333 { "reboot", no_argument, NULL, 'r' },
4334 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4335 { NULL, 0, NULL, 0 }
4343 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
4351 arg_action = ACTION_HALT;
4355 arg_action = ACTION_POWEROFF;
4359 arg_action = ACTION_REBOOT;
4363 if (arg_action != ACTION_HALT)
4364 arg_action = ACTION_POWEROFF;
4377 /* Compatibility nops */
4381 arg_action = ACTION_CANCEL_SHUTDOWN;
4388 log_error("Unknown option code %c", c);
4393 if (argc > optind) {
4394 if ((r = parse_time_spec(argv[optind], &arg_when)) < 0) {
4395 log_error("Failed to parse time specification: %s", argv[optind]);
4399 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
4401 /* We skip the time argument */
4402 if (argc > optind + 1)
4403 arg_wall = argv + optind + 1;
4410 static int telinit_parse_argv(int argc, char *argv[]) {
4417 static const struct option options[] = {
4418 { "help", no_argument, NULL, ARG_HELP },
4419 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4420 { NULL, 0, NULL, 0 }
4423 static const struct {
4427 { '0', ACTION_POWEROFF },
4428 { '6', ACTION_REBOOT },
4429 { '1', ACTION_RESCUE },
4430 { '2', ACTION_RUNLEVEL2 },
4431 { '3', ACTION_RUNLEVEL3 },
4432 { '4', ACTION_RUNLEVEL4 },
4433 { '5', ACTION_RUNLEVEL5 },
4434 { 's', ACTION_RESCUE },
4435 { 'S', ACTION_RESCUE },
4436 { 'q', ACTION_RELOAD },
4437 { 'Q', ACTION_RELOAD },
4438 { 'u', ACTION_REEXEC },
4439 { 'U', ACTION_REEXEC }
4448 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4463 log_error("Unknown option code %c", c);
4468 if (optind >= argc) {
4473 if (optind + 1 < argc) {
4474 log_error("Too many arguments.");
4478 if (strlen(argv[optind]) != 1) {
4479 log_error("Expected single character argument.");
4483 for (i = 0; i < ELEMENTSOF(table); i++)
4484 if (table[i].from == argv[optind][0])
4487 if (i >= ELEMENTSOF(table)) {
4488 log_error("Unknown command %s.", argv[optind]);
4492 arg_action = table[i].to;
4499 static int runlevel_parse_argv(int argc, char *argv[]) {
4505 static const struct option options[] = {
4506 { "help", no_argument, NULL, ARG_HELP },
4507 { NULL, 0, NULL, 0 }
4515 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4526 log_error("Unknown option code %c", c);
4531 if (optind < argc) {
4532 log_error("Too many arguments.");
4539 static int parse_argv(int argc, char *argv[]) {
4543 if (program_invocation_short_name) {
4545 if (strstr(program_invocation_short_name, "halt")) {
4546 arg_action = ACTION_HALT;
4547 return halt_parse_argv(argc, argv);
4548 } else if (strstr(program_invocation_short_name, "poweroff")) {
4549 arg_action = ACTION_POWEROFF;
4550 return halt_parse_argv(argc, argv);
4551 } else if (strstr(program_invocation_short_name, "reboot")) {
4552 arg_action = ACTION_REBOOT;
4553 return halt_parse_argv(argc, argv);
4554 } else if (strstr(program_invocation_short_name, "shutdown")) {
4555 arg_action = ACTION_POWEROFF;
4556 return shutdown_parse_argv(argc, argv);
4557 } else if (strstr(program_invocation_short_name, "init")) {
4559 if (sd_booted() > 0) {
4560 arg_action = ACTION_INVALID;
4561 return telinit_parse_argv(argc, argv);
4563 /* Hmm, so some other init system is
4564 * running, we need to forward this
4565 * request to it. For now we simply
4566 * guess that it is Upstart. */
4568 execv("/lib/upstart/telinit", argv);
4570 log_error("Couldn't find an alternative telinit implementation to spawn.");
4574 } else if (strstr(program_invocation_short_name, "runlevel")) {
4575 arg_action = ACTION_RUNLEVEL;
4576 return runlevel_parse_argv(argc, argv);
4580 arg_action = ACTION_SYSTEMCTL;
4581 return systemctl_parse_argv(argc, argv);
4584 static int action_to_runlevel(void) {
4586 static const char table[_ACTION_MAX] = {
4587 [ACTION_HALT] = '0',
4588 [ACTION_POWEROFF] = '0',
4589 [ACTION_REBOOT] = '6',
4590 [ACTION_RUNLEVEL2] = '2',
4591 [ACTION_RUNLEVEL3] = '3',
4592 [ACTION_RUNLEVEL4] = '4',
4593 [ACTION_RUNLEVEL5] = '5',
4594 [ACTION_RESCUE] = '1'
4597 assert(arg_action < _ACTION_MAX);
4599 return table[arg_action];
4602 static int talk_upstart(void) {
4603 DBusMessage *m = NULL, *reply = NULL;
4605 int previous, rl, r;
4607 env1_buf[] = "RUNLEVEL=X",
4608 env2_buf[] = "PREVLEVEL=X";
4609 char *env1 = env1_buf, *env2 = env2_buf;
4610 const char *emit = "runlevel";
4611 dbus_bool_t b_false = FALSE;
4612 DBusMessageIter iter, sub;
4613 DBusConnection *bus;
4615 dbus_error_init(&error);
4617 if (!(rl = action_to_runlevel()))
4620 if (utmp_get_runlevel(&previous, NULL) < 0)
4623 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
4624 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
4629 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
4634 if ((r = bus_check_peercred(bus)) < 0) {
4635 log_error("Failed to verify owner of bus.");
4639 if (!(m = dbus_message_new_method_call(
4640 "com.ubuntu.Upstart",
4641 "/com/ubuntu/Upstart",
4642 "com.ubuntu.Upstart0_6",
4645 log_error("Could not allocate message.");
4650 dbus_message_iter_init_append(m, &iter);
4652 env1_buf[sizeof(env1_buf)-2] = rl;
4653 env2_buf[sizeof(env2_buf)-2] = previous;
4655 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
4656 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
4657 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
4658 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
4659 !dbus_message_iter_close_container(&iter, &sub) ||
4660 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
4661 log_error("Could not append arguments to message.");
4666 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4668 if (error_is_no_service(&error)) {
4673 log_error("Failed to issue method call: %s", bus_error_message(&error));
4682 dbus_message_unref(m);
4685 dbus_message_unref(reply);
4688 dbus_connection_flush(bus);
4689 dbus_connection_close(bus);
4690 dbus_connection_unref(bus);
4693 dbus_error_free(&error);
4698 static int talk_initctl(void) {
4699 struct init_request request;
4703 if (!(rl = action_to_runlevel()))
4707 request.magic = INIT_MAGIC;
4708 request.sleeptime = 0;
4709 request.cmd = INIT_CMD_RUNLVL;
4710 request.runlevel = rl;
4712 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
4714 if (errno == ENOENT)
4717 log_error("Failed to open "INIT_FIFO": %m");
4722 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
4723 close_nointr_nofail(fd);
4726 log_error("Failed to write to "INIT_FIFO": %m");
4727 return errno ? -errno : -EIO;
4733 static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
4735 static const struct {
4743 int (* const dispatch)(DBusConnection *bus, char **args, unsigned n);
4745 { "list-units", LESS, 1, list_units },
4746 { "list-jobs", EQUAL, 1, list_jobs },
4747 { "clear-jobs", EQUAL, 1, daemon_reload },
4748 { "load", MORE, 2, load_unit },
4749 { "cancel", MORE, 2, cancel_job },
4750 { "start", MORE, 2, start_unit },
4751 { "stop", MORE, 2, start_unit },
4752 { "reload", MORE, 2, start_unit },
4753 { "restart", MORE, 2, start_unit },
4754 { "try-restart", MORE, 2, start_unit },
4755 { "reload-or-restart", MORE, 2, start_unit },
4756 { "reload-or-try-restart", MORE, 2, start_unit },
4757 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
4758 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
4759 { "isolate", EQUAL, 2, start_unit },
4760 { "is-active", MORE, 2, check_unit },
4761 { "check", MORE, 2, check_unit },
4762 { "show", MORE, 1, show },
4763 { "status", MORE, 2, show },
4764 { "monitor", EQUAL, 1, monitor },
4765 { "dump", EQUAL, 1, dump },
4766 { "dot", EQUAL, 1, dot },
4767 { "snapshot", LESS, 2, snapshot },
4768 { "delete", MORE, 2, delete_snapshot },
4769 { "daemon-reload", EQUAL, 1, daemon_reload },
4770 { "daemon-reexec", EQUAL, 1, daemon_reload },
4771 { "daemon-exit", EQUAL, 1, daemon_reload },
4772 { "show-environment", EQUAL, 1, show_enviroment },
4773 { "set-environment", MORE, 2, set_environment },
4774 { "unset-environment", MORE, 2, set_environment },
4775 { "halt", EQUAL, 1, start_special },
4776 { "poweroff", EQUAL, 1, start_special },
4777 { "reboot", EQUAL, 1, start_special },
4778 { "default", EQUAL, 1, start_special },
4779 { "rescue", EQUAL, 1, start_special },
4780 { "emergency", EQUAL, 1, start_special },
4781 { "reset-failed", MORE, 1, reset_failed },
4782 { "enable", MORE, 2, enable_unit },
4783 { "disable", MORE, 2, enable_unit },
4784 { "is-enabled", MORE, 2, enable_unit }
4794 left = argc - optind;
4797 /* Special rule: no arguments means "list-units" */
4800 if (streq(argv[optind], "help")) {
4805 for (i = 0; i < ELEMENTSOF(verbs); i++)
4806 if (streq(argv[optind], verbs[i].verb))
4809 if (i >= ELEMENTSOF(verbs)) {
4810 log_error("Unknown operation %s", argv[optind]);
4815 switch (verbs[i].argc_cmp) {
4818 if (left != verbs[i].argc) {
4819 log_error("Invalid number of arguments.");
4826 if (left < verbs[i].argc) {
4827 log_error("Too few arguments.");
4834 if (left > verbs[i].argc) {
4835 log_error("Too many arguments.");
4842 assert_not_reached("Unknown comparison operator.");
4845 /* Require a bus connection for all operations but
4847 if (!streq(verbs[i].verb, "enable") &&
4848 !streq(verbs[i].verb, "disable") &&
4850 log_error("Failed to get D-Bus connection: %s", error->message);
4854 return verbs[i].dispatch(bus, argv + optind, left);
4857 static int send_shutdownd(usec_t t, char mode, bool warn, const char *message) {
4859 struct msghdr msghdr;
4861 union sockaddr_union sockaddr;
4862 struct shutdownd_command c;
4870 strncpy(c.wall_message, message, sizeof(c.wall_message));
4872 if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0)
4876 sockaddr.sa.sa_family = AF_UNIX;
4877 sockaddr.un.sun_path[0] = 0;
4878 strncpy(sockaddr.un.sun_path+1, "/org/freedesktop/systemd1/shutdownd", sizeof(sockaddr.un.sun_path)-1);
4881 iovec.iov_base = (char*) &c;
4882 iovec.iov_len = sizeof(c);
4885 msghdr.msg_name = &sockaddr;
4886 msghdr.msg_namelen = sizeof(sa_family_t) + 1 + sizeof("/org/freedesktop/systemd1/shutdownd") - 1;
4888 msghdr.msg_iov = &iovec;
4889 msghdr.msg_iovlen = 1;
4891 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
4892 close_nointr_nofail(fd);
4896 close_nointr_nofail(fd);
4900 static int reload_with_fallback(DBusConnection *bus) {
4903 /* First, try systemd via D-Bus. */
4904 if (daemon_reload(bus, NULL, 0) > 0)
4908 /* Nothing else worked, so let's try signals */
4909 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
4911 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
4912 log_error("kill() failed: %m");
4919 static int start_with_fallback(DBusConnection *bus) {
4922 /* First, try systemd via D-Bus. */
4923 if (start_unit(bus, NULL, 0) >= 0)
4927 /* Hmm, talking to systemd via D-Bus didn't work. Then
4928 * let's try to talk to Upstart via D-Bus. */
4929 if (talk_upstart() > 0)
4932 /* Nothing else worked, so let's try
4934 if (talk_initctl() > 0)
4937 log_error("Failed to talk to init daemon.");
4941 warn_wall(arg_action);
4945 static int halt_main(DBusConnection *bus) {
4948 if (geteuid() != 0) {
4949 log_error("Must be root.");
4955 char date[FORMAT_TIMESTAMP_MAX];
4957 m = strv_join(arg_wall, " ");
4958 r = send_shutdownd(arg_when,
4959 arg_action == ACTION_HALT ? 'H' :
4960 arg_action == ACTION_POWEROFF ? 'P' :
4967 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
4969 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
4970 format_timestamp(date, sizeof(date), arg_when));
4975 if (!arg_dry && !arg_immediate)
4976 return start_with_fallback(bus);
4979 if (sd_booted() > 0)
4980 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
4981 else if ((r = utmp_put_shutdown(0)) < 0)
4982 log_warning("Failed to write utmp record: %s", strerror(-r));
4991 /* Make sure C-A-D is handled by the kernel from this
4993 reboot(RB_ENABLE_CAD);
4995 switch (arg_action) {
4998 log_info("Halting.");
4999 reboot(RB_HALT_SYSTEM);
5002 case ACTION_POWEROFF:
5003 log_info("Powering off.");
5004 reboot(RB_POWER_OFF);
5008 log_info("Rebooting.");
5009 reboot(RB_AUTOBOOT);
5013 assert_not_reached("Unknown halt action.");
5016 /* We should never reach this. */
5020 static int runlevel_main(void) {
5021 int r, runlevel, previous;
5023 if ((r = utmp_get_runlevel(&runlevel, &previous)) < 0) {
5024 printf("unknown\n");
5029 previous <= 0 ? 'N' : previous,
5030 runlevel <= 0 ? 'N' : runlevel);
5035 int main(int argc, char*argv[]) {
5036 int r, retval = EXIT_FAILURE;
5037 DBusConnection *bus = NULL;
5040 dbus_error_init(&error);
5042 log_parse_environment();
5045 if ((r = parse_argv(argc, argv)) < 0)
5048 retval = EXIT_SUCCESS;
5052 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5053 * let's shortcut this */
5054 if (arg_action == ACTION_RUNLEVEL) {
5055 r = runlevel_main();
5056 retval = r < 0 ? EXIT_FAILURE : r;
5060 bus_connect(arg_session ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &bus, &private_bus, &error);
5062 switch (arg_action) {
5064 case ACTION_SYSTEMCTL:
5065 r = systemctl_main(bus, argc, argv, &error);
5069 case ACTION_POWEROFF:
5074 case ACTION_RUNLEVEL2:
5075 case ACTION_RUNLEVEL3:
5076 case ACTION_RUNLEVEL4:
5077 case ACTION_RUNLEVEL5:
5079 case ACTION_EMERGENCY:
5080 case ACTION_DEFAULT:
5081 r = start_with_fallback(bus);
5086 r = reload_with_fallback(bus);
5089 case ACTION_CANCEL_SHUTDOWN:
5090 r = send_shutdownd(0, 0, false, NULL);
5093 case ACTION_INVALID:
5094 case ACTION_RUNLEVEL:
5096 assert_not_reached("Unknown action");
5099 retval = r < 0 ? EXIT_FAILURE : r;
5104 dbus_connection_flush(bus);
5105 dbus_connection_close(bus);
5106 dbus_connection_unref(bus);
5109 dbus_error_free(&error);
5113 strv_free(arg_property);