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;
1586 usec_t start_timestamp;
1587 usec_t exit_timestamp;
1589 int exit_code, exit_status;
1592 unsigned n_accepted;
1593 unsigned n_connections;
1597 const char *sysfs_path;
1599 /* Mount, Automount */
1605 LIST_HEAD(ExecStatusInfo, exec);
1608 static void print_status_info(UnitStatusInfo *i) {
1610 const char *on, *off, *ss;
1612 char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
1613 char since2[FORMAT_TIMESTAMP_MAX], *s2;
1617 /* This shows pretty information about a unit. See
1618 * print_property() for a low-level property printer */
1620 printf("%s", strna(i->id));
1622 if (i->description && !streq_ptr(i->id, i->description))
1623 printf(" - %s", i->description);
1627 if (streq_ptr(i->load_state, "failed")) {
1628 on = ansi_highlight(true);
1629 off = ansi_highlight(false);
1634 printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, i->path);
1636 printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off);
1638 ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
1640 if (streq_ptr(i->active_state, "failed")) {
1641 on = ansi_highlight(true);
1642 off = ansi_highlight(false);
1643 } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
1644 on = ansi_highlight_green(true);
1645 off = ansi_highlight_green(false);
1650 printf("\t Active: %s%s (%s)%s",
1652 strna(i->active_state),
1656 printf("\t Active: %s%s%s",
1658 strna(i->active_state),
1661 timestamp = (streq_ptr(i->active_state, "active") ||
1662 streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp :
1663 (streq_ptr(i->active_state, "inactive") ||
1664 streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp :
1665 streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp :
1666 i->active_exit_timestamp;
1668 s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp);
1669 s2 = format_timestamp(since2, sizeof(since2), timestamp);
1672 printf(" since [%s; %s]\n", s2, s1);
1674 printf(" since [%s]\n", s2);
1679 printf("\t Device: %s\n", i->sysfs_path);
1681 printf("\t Where: %s\n", i->where);
1683 printf("\t What: %s\n", i->what);
1686 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
1688 LIST_FOREACH(exec, p, i->exec) {
1691 /* Only show exited processes here */
1695 t = strv_join(p->argv, " ");
1696 printf("\t Process: %u (%s, code=%s, ", p->pid, strna(t), sigchld_code_to_string(p->code));
1699 if (p->code == CLD_EXITED) {
1702 printf("status=%i", p->status);
1704 if ((c = exit_status_to_string(p->status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
1708 printf("signal=%s", signal_to_string(p->status));
1711 if (i->main_pid == p->pid &&
1712 i->start_timestamp == p->start_timestamp &&
1713 i->exit_timestamp == p->start_timestamp)
1714 /* Let's not show this twice */
1717 if (p->pid == i->control_pid)
1721 if (i->main_pid > 0 || i->control_pid > 0) {
1724 if (i->main_pid > 0) {
1725 printf("Main PID: %u", (unsigned) i->main_pid);
1729 get_process_name(i->main_pid, &t);
1734 } else if (i->exit_code > 0) {
1735 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
1737 if (i->exit_code == CLD_EXITED) {
1740 printf("status=%i", i->exit_status);
1742 if ((c = exit_status_to_string(i->exit_status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
1746 printf("signal=%s", signal_to_string(i->exit_status));
1751 if (i->main_pid > 0 && i->control_pid > 0)
1754 if (i->control_pid > 0) {
1757 printf(" Control: %u", (unsigned) i->control_pid);
1759 get_process_name(i->control_pid, &t);
1770 printf("\t Status: \"%s\"\n", i->status_text);
1772 if (i->default_control_group) {
1775 printf("\t CGroup: %s\n", i->default_control_group);
1777 if ((c = columns()) > 18)
1782 show_cgroup_by_path(i->default_control_group, "\t\t ", c);
1785 if (i->need_daemon_reload)
1786 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
1787 ansi_highlight(true),
1788 ansi_highlight(false),
1789 arg_session ? "--session" : "--system");
1792 static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
1794 switch (dbus_message_iter_get_arg_type(iter)) {
1796 case DBUS_TYPE_STRING: {
1799 dbus_message_iter_get_basic(iter, &s);
1802 if (streq(name, "Id"))
1804 else if (streq(name, "LoadState"))
1806 else if (streq(name, "ActiveState"))
1807 i->active_state = s;
1808 else if (streq(name, "SubState"))
1810 else if (streq(name, "Description"))
1812 else if (streq(name, "FragmentPath"))
1814 else if (streq(name, "SysVPath")) {
1817 } else if (streq(name, "DefaultControlGroup"))
1818 i->default_control_group = s;
1819 else if (streq(name, "StatusText"))
1821 else if (streq(name, "SysFSPath"))
1823 else if (streq(name, "Where"))
1825 else if (streq(name, "What"))
1832 case DBUS_TYPE_BOOLEAN: {
1835 dbus_message_iter_get_basic(iter, &b);
1837 if (streq(name, "Accept"))
1839 else if (streq(name, "NeedDaemonReload"))
1840 i->need_daemon_reload = b;
1845 case DBUS_TYPE_UINT32: {
1848 dbus_message_iter_get_basic(iter, &u);
1850 if (streq(name, "MainPID")) {
1852 i->main_pid = (pid_t) u;
1855 } else if (streq(name, "ControlPID"))
1856 i->control_pid = (pid_t) u;
1857 else if (streq(name, "ExecMainPID")) {
1859 i->main_pid = (pid_t) u;
1860 } else if (streq(name, "NAccepted"))
1862 else if (streq(name, "NConnections"))
1863 i->n_connections = u;
1868 case DBUS_TYPE_INT32: {
1871 dbus_message_iter_get_basic(iter, &j);
1873 if (streq(name, "ExecMainCode"))
1874 i->exit_code = (int) j;
1875 else if (streq(name, "ExecMainStatus"))
1876 i->exit_status = (int) j;
1881 case DBUS_TYPE_UINT64: {
1884 dbus_message_iter_get_basic(iter, &u);
1886 if (streq(name, "ExecMainStartTimestamp"))
1887 i->start_timestamp = (usec_t) u;
1888 else if (streq(name, "ExecMainExitTimestamp"))
1889 i->exit_timestamp = (usec_t) u;
1890 else if (streq(name, "ActiveEnterTimestamp"))
1891 i->active_enter_timestamp = (usec_t) u;
1892 else if (streq(name, "InactiveEnterTimestamp"))
1893 i->inactive_enter_timestamp = (usec_t) u;
1894 else if (streq(name, "InactiveExitTimestamp"))
1895 i->inactive_exit_timestamp = (usec_t) u;
1896 else if (streq(name, "ActiveExitTimestamp"))
1897 i->active_exit_timestamp = (usec_t) u;
1902 case DBUS_TYPE_ARRAY: {
1904 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
1905 startswith(name, "Exec")) {
1906 DBusMessageIter sub;
1908 dbus_message_iter_recurse(iter, &sub);
1909 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
1910 ExecStatusInfo *info;
1913 if (!(info = new0(ExecStatusInfo, 1)))
1916 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
1921 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
1923 dbus_message_iter_next(&sub);
1934 static int print_property(const char *name, DBusMessageIter *iter) {
1938 /* This is a low-level property printer, see
1939 * print_status_info() for the nicer output */
1941 if (arg_property && !strv_find(arg_property, name))
1944 switch (dbus_message_iter_get_arg_type(iter)) {
1946 case DBUS_TYPE_STRING: {
1948 dbus_message_iter_get_basic(iter, &s);
1950 if (arg_all || s[0])
1951 printf("%s=%s\n", name, s);
1956 case DBUS_TYPE_BOOLEAN: {
1958 dbus_message_iter_get_basic(iter, &b);
1959 printf("%s=%s\n", name, yes_no(b));
1964 case DBUS_TYPE_UINT64: {
1966 dbus_message_iter_get_basic(iter, &u);
1968 /* Yes, heuristics! But we can change this check
1969 * should it turn out to not be sufficient */
1971 if (strstr(name, "Timestamp")) {
1972 char timestamp[FORMAT_TIMESTAMP_MAX], *t;
1974 if ((t = format_timestamp(timestamp, sizeof(timestamp), u)) || arg_all)
1975 printf("%s=%s\n", name, strempty(t));
1976 } else if (strstr(name, "USec")) {
1977 char timespan[FORMAT_TIMESPAN_MAX];
1979 printf("%s=%s\n", name, format_timespan(timespan, sizeof(timespan), u));
1981 printf("%s=%llu\n", name, (unsigned long long) u);
1986 case DBUS_TYPE_UINT32: {
1988 dbus_message_iter_get_basic(iter, &u);
1990 if (strstr(name, "UMask") || strstr(name, "Mode"))
1991 printf("%s=%04o\n", name, u);
1993 printf("%s=%u\n", name, (unsigned) u);
1998 case DBUS_TYPE_INT32: {
2000 dbus_message_iter_get_basic(iter, &i);
2002 printf("%s=%i\n", name, (int) i);
2006 case DBUS_TYPE_DOUBLE: {
2008 dbus_message_iter_get_basic(iter, &d);
2010 printf("%s=%g\n", name, d);
2014 case DBUS_TYPE_STRUCT: {
2015 DBusMessageIter sub;
2016 dbus_message_iter_recurse(iter, &sub);
2018 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
2021 dbus_message_iter_get_basic(&sub, &u);
2024 printf("%s=%u\n", name, (unsigned) u);
2026 printf("%s=\n", name);
2029 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
2032 dbus_message_iter_get_basic(&sub, &s);
2034 if (arg_all || s[0])
2035 printf("%s=%s\n", name, s);
2043 case DBUS_TYPE_ARRAY:
2045 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
2046 DBusMessageIter sub;
2049 dbus_message_iter_recurse(iter, &sub);
2051 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2052 printf("%s=", name);
2054 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2057 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
2058 dbus_message_iter_get_basic(&sub, &s);
2059 printf("%s%s", space ? " " : "", s);
2062 dbus_message_iter_next(&sub);
2070 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_BYTE) {
2071 DBusMessageIter sub;
2073 dbus_message_iter_recurse(iter, &sub);
2075 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2076 printf("%s=", name);
2078 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2081 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_BYTE);
2082 dbus_message_iter_get_basic(&sub, &u);
2085 dbus_message_iter_next(&sub);
2093 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2094 DBusMessageIter sub, sub2;
2096 dbus_message_iter_recurse(iter, &sub);
2097 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2098 const char *type, *path;
2100 dbus_message_iter_recurse(&sub, &sub2);
2102 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2103 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2104 printf("%s=%s\n", type, path);
2106 dbus_message_iter_next(&sub);
2111 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2112 DBusMessageIter sub, sub2;
2114 dbus_message_iter_recurse(iter, &sub);
2115 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2117 uint64_t value, next_elapse;
2119 dbus_message_iter_recurse(&sub, &sub2);
2121 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
2122 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
2123 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
2124 char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
2126 printf("%s={ value=%s ; next_elapse=%s }\n",
2128 format_timespan(timespan1, sizeof(timespan1), value),
2129 format_timespan(timespan2, sizeof(timespan2), next_elapse));
2132 dbus_message_iter_next(&sub);
2137 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
2138 DBusMessageIter sub;
2140 dbus_message_iter_recurse(iter, &sub);
2141 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2142 ExecStatusInfo info;
2145 if (exec_status_info_deserialize(&sub, &info) >= 0) {
2146 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
2149 t = strv_join(info.argv, " ");
2151 printf("%s={ path=%s ; argv[]=%s ; ignore=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
2155 yes_no(info.ignore),
2156 strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
2157 strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
2158 (unsigned) info. pid,
2159 sigchld_code_to_string(info.code),
2161 info.code == CLD_EXITED ? "" : "/",
2162 strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
2168 strv_free(info.argv);
2170 dbus_message_iter_next(&sub);
2180 printf("%s=[unprintable]\n", name);
2185 static int show_one(DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
2186 DBusMessage *m = NULL, *reply = NULL;
2187 const char *interface = "";
2190 DBusMessageIter iter, sub, sub2, sub3;
2191 UnitStatusInfo info;
2199 dbus_error_init(&error);
2201 if (!(m = dbus_message_new_method_call(
2202 "org.freedesktop.systemd1",
2204 "org.freedesktop.DBus.Properties",
2206 log_error("Could not allocate message.");
2211 if (!dbus_message_append_args(m,
2212 DBUS_TYPE_STRING, &interface,
2213 DBUS_TYPE_INVALID)) {
2214 log_error("Could not append arguments to message.");
2219 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2220 log_error("Failed to issue method call: %s", bus_error_message(&error));
2225 if (!dbus_message_iter_init(reply, &iter) ||
2226 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
2227 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
2228 log_error("Failed to parse reply.");
2233 dbus_message_iter_recurse(&iter, &sub);
2240 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2243 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
2244 log_error("Failed to parse reply.");
2249 dbus_message_iter_recurse(&sub, &sub2);
2251 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
2252 log_error("Failed to parse reply.");
2257 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
2258 log_error("Failed to parse reply.");
2263 dbus_message_iter_recurse(&sub2, &sub3);
2265 if (show_properties)
2266 r = print_property(name, &sub3);
2268 r = status_property(name, &sub3, &info);
2271 log_error("Failed to parse reply.");
2276 dbus_message_iter_next(&sub);
2281 if (!show_properties)
2282 print_status_info(&info);
2284 if (!streq_ptr(info.active_state, "active") &&
2285 !streq_ptr(info.active_state, "reloading"))
2286 /* According to LSB: "program not running" */
2289 while ((p = info.exec)) {
2290 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
2291 exec_status_info_free(p);
2296 dbus_message_unref(m);
2299 dbus_message_unref(reply);
2301 dbus_error_free(&error);
2306 static int show(DBusConnection *bus, char **args, unsigned n) {
2307 DBusMessage *m = NULL, *reply = NULL;
2311 bool show_properties, new_line = false;
2316 dbus_error_init(&error);
2318 show_properties = !streq(args[0], "status");
2320 if (show_properties && n <= 1) {
2321 /* If not argument is specified inspect the manager
2324 ret = show_one(bus, "/org/freedesktop/systemd1", show_properties, &new_line);
2328 for (i = 1; i < n; i++) {
2329 const char *path = NULL;
2332 if (safe_atou32(args[i], &id) < 0) {
2334 /* Interpret as unit name */
2336 if (!(m = dbus_message_new_method_call(
2337 "org.freedesktop.systemd1",
2338 "/org/freedesktop/systemd1",
2339 "org.freedesktop.systemd1.Manager",
2341 log_error("Could not allocate message.");
2346 if (!dbus_message_append_args(m,
2347 DBUS_TYPE_STRING, &args[i],
2348 DBUS_TYPE_INVALID)) {
2349 log_error("Could not append arguments to message.");
2354 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2356 if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
2357 log_error("Failed to issue method call: %s", bus_error_message(&error));
2362 dbus_error_free(&error);
2364 dbus_message_unref(m);
2365 if (!(m = dbus_message_new_method_call(
2366 "org.freedesktop.systemd1",
2367 "/org/freedesktop/systemd1",
2368 "org.freedesktop.systemd1.Manager",
2370 log_error("Could not allocate message.");
2375 if (!dbus_message_append_args(m,
2376 DBUS_TYPE_STRING, &args[i],
2377 DBUS_TYPE_INVALID)) {
2378 log_error("Could not append arguments to message.");
2383 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2384 log_error("Failed to issue method call: %s", bus_error_message(&error));
2386 if (dbus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT))
2387 ret = 4; /* According to LSB: "program or service status is unknown" */
2394 } else if (show_properties) {
2396 /* Interpret as job id */
2398 if (!(m = dbus_message_new_method_call(
2399 "org.freedesktop.systemd1",
2400 "/org/freedesktop/systemd1",
2401 "org.freedesktop.systemd1.Manager",
2403 log_error("Could not allocate message.");
2408 if (!dbus_message_append_args(m,
2409 DBUS_TYPE_UINT32, &id,
2410 DBUS_TYPE_INVALID)) {
2411 log_error("Could not append arguments to message.");
2416 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2417 log_error("Failed to issue method call: %s", bus_error_message(&error));
2423 /* Interpret as PID */
2425 if (!(m = dbus_message_new_method_call(
2426 "org.freedesktop.systemd1",
2427 "/org/freedesktop/systemd1",
2428 "org.freedesktop.systemd1.Manager",
2430 log_error("Could not allocate message.");
2435 if (!dbus_message_append_args(m,
2436 DBUS_TYPE_UINT32, &id,
2437 DBUS_TYPE_INVALID)) {
2438 log_error("Could not append arguments to message.");
2443 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2444 log_error("Failed to issue method call: %s", bus_error_message(&error));
2450 if (!dbus_message_get_args(reply, &error,
2451 DBUS_TYPE_OBJECT_PATH, &path,
2452 DBUS_TYPE_INVALID)) {
2453 log_error("Failed to parse reply: %s", bus_error_message(&error));
2458 if ((r = show_one(bus, path, show_properties, &new_line)) != 0)
2461 dbus_message_unref(m);
2462 dbus_message_unref(reply);
2468 dbus_message_unref(m);
2471 dbus_message_unref(reply);
2473 dbus_error_free(&error);
2478 static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) {
2480 DBusMessage *m = NULL, *reply = NULL;
2485 dbus_error_init(&error);
2487 log_debug("Got D-Bus request: %s.%s() on %s",
2488 dbus_message_get_interface(message),
2489 dbus_message_get_member(message),
2490 dbus_message_get_path(message));
2492 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
2493 log_error("Warning! D-Bus connection terminated.");
2494 dbus_connection_close(connection);
2496 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitNew") ||
2497 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitRemoved")) {
2498 const char *id, *path;
2500 if (!dbus_message_get_args(message, &error,
2501 DBUS_TYPE_STRING, &id,
2502 DBUS_TYPE_OBJECT_PATH, &path,
2504 log_error("Failed to parse message: %s", bus_error_message(&error));
2505 else if (streq(dbus_message_get_member(message), "UnitNew"))
2506 printf("Unit %s added.\n", id);
2508 printf("Unit %s removed.\n", id);
2510 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew") ||
2511 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
2515 if (!dbus_message_get_args(message, &error,
2516 DBUS_TYPE_UINT32, &id,
2517 DBUS_TYPE_OBJECT_PATH, &path,
2519 log_error("Failed to parse message: %s", bus_error_message(&error));
2520 else if (streq(dbus_message_get_member(message), "JobNew"))
2521 printf("Job %u added.\n", id);
2523 printf("Job %u removed.\n", id);
2526 } else if (dbus_message_is_signal(message, "org.freedesktop.DBus.Properties", "PropertiesChanged")) {
2528 const char *path, *interface, *property = "Id";
2529 DBusMessageIter iter, sub;
2531 path = dbus_message_get_path(message);
2533 if (!dbus_message_get_args(message, &error,
2534 DBUS_TYPE_STRING, &interface,
2535 DBUS_TYPE_INVALID)) {
2536 log_error("Failed to parse message: %s", bus_error_message(&error));
2540 if (!streq(interface, "org.freedesktop.systemd1.Job") &&
2541 !streq(interface, "org.freedesktop.systemd1.Unit"))
2544 if (!(m = dbus_message_new_method_call(
2545 "org.freedesktop.systemd1",
2547 "org.freedesktop.DBus.Properties",
2549 log_error("Could not allocate message.");
2553 if (!dbus_message_append_args(m,
2554 DBUS_TYPE_STRING, &interface,
2555 DBUS_TYPE_STRING, &property,
2556 DBUS_TYPE_INVALID)) {
2557 log_error("Could not append arguments to message.");
2561 if (!(reply = dbus_connection_send_with_reply_and_block(connection, m, -1, &error))) {
2562 log_error("Failed to issue method call: %s", bus_error_message(&error));
2566 if (!dbus_message_iter_init(reply, &iter) ||
2567 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2568 log_error("Failed to parse reply.");
2572 dbus_message_iter_recurse(&iter, &sub);
2574 if (streq(interface, "org.freedesktop.systemd1.Unit")) {
2577 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2578 log_error("Failed to parse reply.");
2582 dbus_message_iter_get_basic(&sub, &id);
2583 printf("Unit %s changed.\n", id);
2587 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT32) {
2588 log_error("Failed to parse reply.");
2592 dbus_message_iter_get_basic(&sub, &id);
2593 printf("Job %u changed.\n", id);
2599 dbus_message_unref(m);
2602 dbus_message_unref(reply);
2604 dbus_error_free(&error);
2605 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
2609 dbus_message_unref(m);
2612 dbus_message_unref(reply);
2614 dbus_error_free(&error);
2615 return DBUS_HANDLER_RESULT_NEED_MEMORY;
2618 static int monitor(DBusConnection *bus, char **args, unsigned n) {
2619 DBusMessage *m = NULL, *reply = NULL;
2623 dbus_error_init(&error);
2626 dbus_bus_add_match(bus,
2628 "sender='org.freedesktop.systemd1',"
2629 "interface='org.freedesktop.systemd1.Manager',"
2630 "path='/org/freedesktop/systemd1'",
2633 if (dbus_error_is_set(&error)) {
2634 log_error("Failed to add match: %s", bus_error_message(&error));
2639 dbus_bus_add_match(bus,
2641 "sender='org.freedesktop.systemd1',"
2642 "interface='org.freedesktop.DBus.Properties',"
2643 "member='PropertiesChanged'",
2646 if (dbus_error_is_set(&error)) {
2647 log_error("Failed to add match: %s", bus_error_message(&error));
2653 if (!dbus_connection_add_filter(bus, monitor_filter, NULL, NULL)) {
2654 log_error("Failed to add filter.");
2659 if (!(m = dbus_message_new_method_call(
2660 "org.freedesktop.systemd1",
2661 "/org/freedesktop/systemd1",
2662 "org.freedesktop.systemd1.Manager",
2664 log_error("Could not allocate message.");
2669 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2670 log_error("Failed to issue method call: %s", bus_error_message(&error));
2675 while (dbus_connection_read_write_dispatch(bus, -1))
2682 /* This is slightly dirty, since we don't undo the filter or the matches. */
2685 dbus_message_unref(m);
2688 dbus_message_unref(reply);
2690 dbus_error_free(&error);
2695 static int dump(DBusConnection *bus, char **args, unsigned n) {
2696 DBusMessage *m = NULL, *reply = NULL;
2701 dbus_error_init(&error);
2703 if (!(m = dbus_message_new_method_call(
2704 "org.freedesktop.systemd1",
2705 "/org/freedesktop/systemd1",
2706 "org.freedesktop.systemd1.Manager",
2708 log_error("Could not allocate message.");
2712 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2713 log_error("Failed to issue method call: %s", bus_error_message(&error));
2718 if (!dbus_message_get_args(reply, &error,
2719 DBUS_TYPE_STRING, &text,
2720 DBUS_TYPE_INVALID)) {
2721 log_error("Failed to parse reply: %s", bus_error_message(&error));
2726 fputs(text, stdout);
2732 dbus_message_unref(m);
2735 dbus_message_unref(reply);
2737 dbus_error_free(&error);
2742 static int snapshot(DBusConnection *bus, char **args, unsigned n) {
2743 DBusMessage *m = NULL, *reply = NULL;
2746 const char *name = "", *path, *id;
2747 dbus_bool_t cleanup = FALSE;
2748 DBusMessageIter iter, sub;
2750 *interface = "org.freedesktop.systemd1.Unit",
2753 dbus_error_init(&error);
2755 if (!(m = dbus_message_new_method_call(
2756 "org.freedesktop.systemd1",
2757 "/org/freedesktop/systemd1",
2758 "org.freedesktop.systemd1.Manager",
2759 "CreateSnapshot"))) {
2760 log_error("Could not allocate message.");
2767 if (!dbus_message_append_args(m,
2768 DBUS_TYPE_STRING, &name,
2769 DBUS_TYPE_BOOLEAN, &cleanup,
2770 DBUS_TYPE_INVALID)) {
2771 log_error("Could not append arguments to message.");
2776 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2777 log_error("Failed to issue method call: %s", bus_error_message(&error));
2782 if (!dbus_message_get_args(reply, &error,
2783 DBUS_TYPE_OBJECT_PATH, &path,
2784 DBUS_TYPE_INVALID)) {
2785 log_error("Failed to parse reply: %s", bus_error_message(&error));
2790 dbus_message_unref(m);
2791 if (!(m = dbus_message_new_method_call(
2792 "org.freedesktop.systemd1",
2794 "org.freedesktop.DBus.Properties",
2796 log_error("Could not allocate message.");
2800 if (!dbus_message_append_args(m,
2801 DBUS_TYPE_STRING, &interface,
2802 DBUS_TYPE_STRING, &property,
2803 DBUS_TYPE_INVALID)) {
2804 log_error("Could not append arguments to message.");
2809 dbus_message_unref(reply);
2810 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2811 log_error("Failed to issue method call: %s", bus_error_message(&error));
2816 if (!dbus_message_iter_init(reply, &iter) ||
2817 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
2818 log_error("Failed to parse reply.");
2823 dbus_message_iter_recurse(&iter, &sub);
2825 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
2826 log_error("Failed to parse reply.");
2831 dbus_message_iter_get_basic(&sub, &id);
2839 dbus_message_unref(m);
2842 dbus_message_unref(reply);
2844 dbus_error_free(&error);
2849 static int delete_snapshot(DBusConnection *bus, char **args, unsigned n) {
2850 DBusMessage *m = NULL, *reply = NULL;
2858 dbus_error_init(&error);
2860 for (i = 1; i < n; i++) {
2861 const char *path = NULL;
2863 if (!(m = dbus_message_new_method_call(
2864 "org.freedesktop.systemd1",
2865 "/org/freedesktop/systemd1",
2866 "org.freedesktop.systemd1.Manager",
2868 log_error("Could not allocate message.");
2873 if (!dbus_message_append_args(m,
2874 DBUS_TYPE_STRING, &args[i],
2875 DBUS_TYPE_INVALID)) {
2876 log_error("Could not append arguments to message.");
2881 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2882 log_error("Failed to issue method call: %s", bus_error_message(&error));
2887 if (!dbus_message_get_args(reply, &error,
2888 DBUS_TYPE_OBJECT_PATH, &path,
2889 DBUS_TYPE_INVALID)) {
2890 log_error("Failed to parse reply: %s", bus_error_message(&error));
2895 dbus_message_unref(m);
2896 if (!(m = dbus_message_new_method_call(
2897 "org.freedesktop.systemd1",
2899 "org.freedesktop.systemd1.Snapshot",
2901 log_error("Could not allocate message.");
2906 dbus_message_unref(reply);
2907 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2908 log_error("Failed to issue method call: %s", bus_error_message(&error));
2913 dbus_message_unref(m);
2914 dbus_message_unref(reply);
2922 dbus_message_unref(m);
2925 dbus_message_unref(reply);
2927 dbus_error_free(&error);
2932 static int daemon_reload(DBusConnection *bus, char **args, unsigned n) {
2933 DBusMessage *m = NULL, *reply = NULL;
2938 dbus_error_init(&error);
2940 if (arg_action == ACTION_RELOAD)
2942 else if (arg_action == ACTION_REEXEC)
2943 method = "Reexecute";
2945 assert(arg_action == ACTION_SYSTEMCTL);
2948 streq(args[0], "clear-jobs") ||
2949 streq(args[0], "cancel") ? "ClearJobs" :
2950 streq(args[0], "daemon-reexec") ? "Reexecute" :
2951 streq(args[0], "reset-failed") ? "ResetFailed" :
2952 streq(args[0], "daemon-exit") ? "Exit" :
2956 if (!(m = dbus_message_new_method_call(
2957 "org.freedesktop.systemd1",
2958 "/org/freedesktop/systemd1",
2959 "org.freedesktop.systemd1.Manager",
2961 log_error("Could not allocate message.");
2965 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2967 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
2968 /* There's always a fallback possible for
2969 * legacy actions. */
2974 log_error("Failed to issue method call: %s", bus_error_message(&error));
2983 dbus_message_unref(m);
2986 dbus_message_unref(reply);
2988 dbus_error_free(&error);
2993 static int reset_failed(DBusConnection *bus, char **args, unsigned n) {
2994 DBusMessage *m = NULL, *reply = NULL;
3000 dbus_error_init(&error);
3003 return daemon_reload(bus, args, n);
3005 for (i = 1; i < n; i++) {
3007 if (!(m = dbus_message_new_method_call(
3008 "org.freedesktop.systemd1",
3009 "/org/freedesktop/systemd1",
3010 "org.freedesktop.systemd1.Manager",
3011 "ResetFailedUnit"))) {
3012 log_error("Could not allocate message.");
3017 if (!dbus_message_append_args(m,
3018 DBUS_TYPE_STRING, args + i,
3019 DBUS_TYPE_INVALID)) {
3020 log_error("Could not append arguments to message.");
3025 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3026 log_error("Failed to issue method call: %s", bus_error_message(&error));
3031 dbus_message_unref(m);
3032 dbus_message_unref(reply);
3040 dbus_message_unref(m);
3043 dbus_message_unref(reply);
3045 dbus_error_free(&error);
3050 static int show_enviroment(DBusConnection *bus, char **args, unsigned n) {
3051 DBusMessage *m = NULL, *reply = NULL;
3053 DBusMessageIter iter, sub, sub2;
3056 *interface = "org.freedesktop.systemd1.Manager",
3057 *property = "Environment";
3059 dbus_error_init(&error);
3061 if (!(m = dbus_message_new_method_call(
3062 "org.freedesktop.systemd1",
3063 "/org/freedesktop/systemd1",
3064 "org.freedesktop.DBus.Properties",
3066 log_error("Could not allocate message.");
3070 if (!dbus_message_append_args(m,
3071 DBUS_TYPE_STRING, &interface,
3072 DBUS_TYPE_STRING, &property,
3073 DBUS_TYPE_INVALID)) {
3074 log_error("Could not append arguments to message.");
3079 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3080 log_error("Failed to issue method call: %s", bus_error_message(&error));
3085 if (!dbus_message_iter_init(reply, &iter) ||
3086 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
3087 log_error("Failed to parse reply.");
3092 dbus_message_iter_recurse(&iter, &sub);
3094 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3095 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
3096 log_error("Failed to parse reply.");
3101 dbus_message_iter_recurse(&sub, &sub2);
3103 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3106 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3107 log_error("Failed to parse reply.");
3112 dbus_message_iter_get_basic(&sub2, &text);
3113 printf("%s\n", text);
3115 dbus_message_iter_next(&sub2);
3122 dbus_message_unref(m);
3125 dbus_message_unref(reply);
3127 dbus_error_free(&error);
3132 static int set_environment(DBusConnection *bus, char **args, unsigned n) {
3133 DBusMessage *m = NULL, *reply = NULL;
3137 DBusMessageIter iter, sub;
3140 dbus_error_init(&error);
3142 method = streq(args[0], "set-environment")
3144 : "UnsetEnvironment";
3146 if (!(m = dbus_message_new_method_call(
3147 "org.freedesktop.systemd1",
3148 "/org/freedesktop/systemd1",
3149 "org.freedesktop.systemd1.Manager",
3152 log_error("Could not allocate message.");
3156 dbus_message_iter_init_append(m, &iter);
3158 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
3159 log_error("Could not append arguments to message.");
3164 for (i = 1; i < n; i++)
3165 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &args[i])) {
3166 log_error("Could not append arguments to message.");
3171 if (!dbus_message_iter_close_container(&iter, &sub)) {
3172 log_error("Could not append arguments to message.");
3177 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3178 log_error("Failed to issue method call: %s", bus_error_message(&error));
3187 dbus_message_unref(m);
3190 dbus_message_unref(reply);
3192 dbus_error_free(&error);
3205 static Hashmap *will_install = NULL, *have_installed = NULL;
3206 static Set *remove_symlinks_to = NULL;
3208 static void install_info_free(InstallInfo *i) {
3213 strv_free(i->aliases);
3214 strv_free(i->wanted_by);
3218 static void install_info_hashmap_free(Hashmap *m) {
3221 while ((i = hashmap_steal_first(m)))
3222 install_info_free(i);
3227 static bool unit_name_valid(const char *name) {
3229 /* This is a minimal version of unit_name_valid() from
3235 if (ignore_file(name))
3241 static int install_info_add(const char *name) {
3245 assert(will_install);
3247 if (!unit_name_valid(name))
3250 if (hashmap_get(have_installed, name) ||
3251 hashmap_get(will_install, name))
3254 if (!(i = new0(InstallInfo, 1))) {
3259 if (!(i->name = strdup(name))) {
3264 if ((r = hashmap_put(will_install, i->name, i)) < 0)
3271 install_info_free(i);
3276 static int config_parse_also(
3277 const char *filename,
3279 const char *section,
3293 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
3297 if (!(n = strndup(w, l)))
3300 r = install_info_add(n);
3310 static int mark_symlink_for_removal(const char *p) {
3315 assert(path_is_absolute(p));
3317 if (!remove_symlinks_to)
3320 if (!(n = strdup(p)))
3323 path_kill_slashes(n);
3325 if ((r = set_put(remove_symlinks_to, n)) < 0) {
3327 return r == -EEXIST ? 0 : r;
3333 static int remove_marked_symlinks_fd(int fd, const char *config_path, const char *root, bool *deleted) {
3342 if (!(d = fdopendir(fd))) {
3343 close_nointr_nofail(fd);
3349 while ((de = readdir(d))) {
3350 bool is_dir = false, is_link = false;
3352 if (ignore_file(de->d_name))
3355 if (de->d_type == DT_LNK)
3357 else if (de->d_type == DT_DIR)
3359 else if (de->d_type == DT_UNKNOWN) {
3362 if (fstatat(fd, de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) {
3363 log_error("Failed to stat %s/%s: %m", root, de->d_name);
3370 is_link = S_ISLNK(st.st_mode);
3371 is_dir = S_ISDIR(st.st_mode);
3379 if ((nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0) {
3380 log_error("Failed to open %s/%s: %m", root, de->d_name);
3387 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3388 log_error("Failed to allocate directory string.");
3389 close_nointr_nofail(nfd);
3394 /* This will close nfd, regardless whether it succeeds or not */
3395 q = remove_marked_symlinks_fd(nfd, config_path, p, deleted);
3401 } else if (is_link) {
3405 if (asprintf(&p, "%s/%s", root, de->d_name) < 0) {
3406 log_error("Failed to allocate symlink string.");
3411 if ((q = readlink_and_make_absolute(p, &dest)) < 0) {
3412 log_error("Cannot read symlink %s: %s", p, strerror(-q));
3420 if ((c = canonicalize_file_name(dest))) {
3421 /* This might fail if the destination
3422 * is already removed */
3428 path_kill_slashes(dest);
3429 if (set_get(remove_symlinks_to, dest)) {
3432 log_info("rm '%s'", p);
3434 if (unlink(p) < 0) {
3435 log_error("Cannot unlink symlink %s: %m", p);
3440 rmdir_parents(p, config_path);
3441 path_kill_slashes(p);
3443 if (!set_get(remove_symlinks_to, p)) {
3445 if ((r = mark_symlink_for_removal(p)) < 0) {
3464 static int remove_marked_symlinks(const char *config_path) {
3468 assert(config_path);
3470 if (set_size(remove_symlinks_to) <= 0)
3473 if ((fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0)
3480 if ((cfd = dup(fd)) < 0) {
3485 /* This takes possession of cfd and closes it */
3486 if ((q = remove_marked_symlinks_fd(cfd, config_path, config_path, &deleted)) < 0) {
3492 close_nointr_nofail(fd);
3497 static int create_symlink(const char *verb, const char *old_path, const char *new_path) {
3504 if (streq(verb, "enable")) {
3507 mkdir_parents(new_path, 0755);
3509 if (symlink(old_path, new_path) >= 0) {
3512 log_info("ln -s '%s' '%s'", old_path, new_path);
3517 if (errno != EEXIST) {
3518 log_error("Cannot link %s to %s: %m", old_path, new_path);
3522 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3524 if (errno == EINVAL) {
3525 log_error("Cannot link %s to %s, file exists already and is not a symlink.", old_path, new_path);
3529 log_error("readlink() failed: %s", strerror(-r));
3533 if (streq(dest, old_path)) {
3539 log_error("Cannot link %s to %s, symlink exists already and points to %s.", old_path, new_path, dest);
3548 log_info("ln -s '%s' '%s'", old_path, new_path);
3550 if (symlink(old_path, new_path) >= 0)
3553 log_error("Cannot link %s to %s: %m", old_path, new_path);
3556 } else if (streq(verb, "disable")) {
3559 if ((r = mark_symlink_for_removal(old_path)) < 0)
3562 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3563 if (errno == ENOENT)
3566 if (errno == EINVAL) {
3567 log_warning("File %s not a symlink, ignoring.", old_path);
3571 log_error("readlink() failed: %s", strerror(-r));
3575 if (!streq(dest, old_path)) {
3576 log_warning("File %s not a symlink to %s but points to %s, ignoring.", new_path, old_path, dest);
3583 if ((r = mark_symlink_for_removal(new_path)) < 0)
3587 log_info("rm '%s'", new_path);
3589 if (unlink(new_path) >= 0)
3592 log_error("Cannot unlink %s: %m", new_path);
3595 } else if (streq(verb, "is-enabled")) {
3598 if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) {
3600 if (errno == ENOENT || errno == EINVAL)
3603 log_error("readlink() failed: %s", strerror(-r));
3607 if (streq(dest, old_path)) {
3615 assert_not_reached("Unknown action.");
3618 static int install_info_symlink_alias(const char *verb, InstallInfo *i, const char *config_path) {
3620 char *alias_path = NULL;
3625 assert(config_path);
3627 STRV_FOREACH(s, i->aliases) {
3629 if (!unit_name_valid(*s)) {
3630 log_error("Invalid name %s.", *s);
3636 if (!(alias_path = path_make_absolute(*s, config_path))) {
3637 log_error("Out of memory");
3642 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3645 if (streq(verb, "disable"))
3646 rmdir_parents(alias_path, config_path);
3657 static int install_info_symlink_wants(const char *verb, InstallInfo *i, const char *config_path) {
3659 char *alias_path = NULL;
3664 assert(config_path);
3666 STRV_FOREACH(s, i->wanted_by) {
3667 if (!unit_name_valid(*s)) {
3668 log_error("Invalid name %s.", *s);
3676 if (asprintf(&alias_path, "%s/%s.wants/%s", config_path, *s, i->name) < 0) {
3677 log_error("Out of memory");
3682 if ((r = create_symlink(verb, i->path, alias_path)) != 0)
3685 if (streq(verb, "disable"))
3686 rmdir_parents(alias_path, config_path);
3697 static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo *i, const char *config_path) {
3699 const ConfigItem items[] = {
3700 { "Alias", config_parse_strv, &i->aliases, "Install" },
3701 { "WantedBy", config_parse_strv, &i->wanted_by, "Install" },
3702 { "Also", config_parse_also, NULL, "Install" },
3704 { NULL, NULL, NULL, NULL }
3708 char *filename = NULL;
3715 STRV_FOREACH(p, paths->unit_path) {
3718 if (!(filename = path_make_absolute(i->name, *p))) {
3719 log_error("Out of memory");
3723 /* Ensure that we don't follow symlinks */
3724 if ((fd = open(filename, O_RDONLY|O_CLOEXEC|O_NOFOLLOW|O_NOCTTY)) >= 0)
3725 if ((f = fdopen(fd, "re")))
3728 if (errno == ELOOP) {
3729 log_error("Refusing to operate on symlinks, please pass unit names or absolute paths to unit files.");
3734 if (errno != ENOENT) {
3735 log_error("Failed to open %s: %m", filename);
3745 log_error("Couldn't find %s.", i->name);
3751 if ((r = config_parse(filename, f, NULL, items, true, i)) < 0) {
3758 if ((r = install_info_symlink_alias(verb, i, config_path)) != 0)
3761 if ((r = install_info_symlink_wants(verb, i, config_path)) != 0)
3764 if ((r = mark_symlink_for_removal(filename)) < 0)
3767 if ((r = remove_marked_symlinks(config_path)) < 0)
3773 static char *get_config_path(void) {
3775 if (arg_session && arg_global)
3776 return strdup(SESSION_CONFIG_UNIT_PATH);
3781 if (session_config_home(&p) < 0)
3787 return strdup(SYSTEM_CONFIG_UNIT_PATH);
3790 static int enable_unit(DBusConnection *bus, char **args, unsigned n) {
3794 char *config_path = NULL;
3797 const char *verb = args[0];
3799 dbus_error_init(&error);
3802 if ((r = lookup_paths_init(&paths, arg_session ? MANAGER_SESSION : MANAGER_SYSTEM)) < 0) {
3803 log_error("Failed to determine lookup paths: %s", strerror(-r));
3807 if (!(config_path = get_config_path())) {
3808 log_error("Failed to determine config path");
3813 will_install = hashmap_new(string_hash_func, string_compare_func);
3814 have_installed = hashmap_new(string_hash_func, string_compare_func);
3816 if (!will_install || !have_installed) {
3817 log_error("Failed to allocate unit sets.");
3822 if (!arg_defaults && streq(verb, "disable"))
3823 if (!(remove_symlinks_to = set_new(string_hash_func, string_compare_func))) {
3824 log_error("Failed to allocate symlink sets.");
3829 for (j = 1; j < n; j++)
3830 if ((r = install_info_add(args[j])) < 0)
3833 while ((i = hashmap_first(will_install))) {
3836 assert_se(hashmap_move_one(have_installed, will_install, i->name) == 0);
3838 if ((q = install_info_apply(verb, &paths, i, config_path)) != 0) {
3846 /* In test mode and found something */
3852 if (streq(verb, "is-enabled"))
3853 r = r > 0 ? 0 : -ENOENT;
3855 /* Don't try to reload anything if the user asked us to not do this */
3857 /* Don't try to reload anything when updating a unit globally */
3859 /* Don't try to reload anything if we are called for system changes but the system wasn't booted with systemd */
3860 (arg_session || sd_booted() > 0) &&
3861 /* Don't try to reload anything if we are running in a chroot environment */
3862 (arg_session || running_in_chroot() <= 0) ) {
3865 if ((q = daemon_reload(bus, args, n)) < 0)
3870 install_info_hashmap_free(will_install);
3871 install_info_hashmap_free(have_installed);
3873 set_free_free(remove_symlinks_to);
3875 lookup_paths_free(&paths);
3882 static int systemctl_help(void) {
3884 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
3885 "Send control commands to or query the systemd manager.\n\n"
3886 " -h --help Show this help\n"
3887 " --version Show package version\n"
3888 " -t --type=TYPE List only units of a particular type\n"
3889 " -p --property=NAME Show only properties by this name\n"
3890 " -a --all Show all units/properties, including dead/empty ones\n"
3891 " --full Don't ellipsize unit names on output\n"
3892 " --fail When queueing a new job, fail if conflicting jobs are\n"
3894 " -q --quiet Suppress output\n"
3895 " --no-block Do not wait until operation finished\n"
3896 " --system Connect to system bus\n"
3897 " --session Connect to session bus\n"
3898 " --order When generating graph for dot, show only order\n"
3899 " --require When generating graph for dot, show only requirement\n"
3900 " --no-wall Don't send wall message before halt/power-off/reboot\n"
3901 " --global Enable/disable unit files globally\n"
3902 " --no-reload When enabling/disabling unit files, don't reload daemon\n"
3904 " --force When enabling unit files, override existing symlinks\n"
3905 " --defaults When disabling unit files, remove default symlinks only\n\n"
3907 " list-units List units\n"
3908 " start [NAME...] Start (activate) one or more units\n"
3909 " stop [NAME...] Stop (deactivate) one or more units\n"
3910 " reload [NAME...] Reload one or more units\n"
3911 " restart [NAME...] Start or restart one or more units\n"
3912 " try-restart [NAME...] Restart one or more units if active\n"
3913 " reload-or-restart [NAME...] Reload one or more units is possible,\n"
3914 " otherwise start or restart\n"
3915 " reload-or-try-restart [NAME...] Reload one or more units is possible,\n"
3916 " otherwise restart if active\n"
3917 " isolate [NAME] Start one unit and stop all others\n"
3918 " is-active [NAME...] Check whether units are active\n"
3919 " status [NAME...|PID...] Show runtime status of one or more units\n"
3920 " show [NAME...|JOB...] Show properties of one or more\n"
3921 " units/jobs or the manager\n"
3922 " reset-failed [NAME...] Reset failed state for all, one, or more\n"
3924 " enable [NAME...] Enable one or more unit files\n"
3925 " disable [NAME...] Disable one or more unit files\n"
3926 " is-enabled [NAME...] Check whether unit files are enabled\n"
3927 " load [NAME...] Load one or more units\n"
3928 " list-jobs List jobs\n"
3929 " cancel [JOB...] Cancel all, one, or more jobs\n"
3930 " monitor Monitor unit/job changes\n"
3931 " dump Dump server status\n"
3932 " dot Dump dependency graph for dot(1)\n"
3933 " snapshot [NAME] Create a snapshot\n"
3934 " delete [NAME...] Remove one or more snapshots\n"
3935 " daemon-reload Reload systemd manager configuration\n"
3936 " daemon-reexec Reexecute systemd manager\n"
3937 " daemon-exit Ask the systemd manager to quit\n"
3938 " show-environment Dump environment\n"
3939 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
3940 " unset-environment [NAME...] Unset one or more environment variables\n"
3941 " halt Shut down and halt the system\n"
3942 " poweroff Shut down and power-off the system\n"
3943 " reboot Shut down and reboot the system\n"
3944 " rescue Enter system rescue mode\n"
3945 " emergency Enter system emergency mode\n"
3946 " default Enter system default mode\n",
3947 program_invocation_short_name);
3952 static int halt_help(void) {
3954 printf("%s [OPTIONS...]\n\n"
3955 "%s the system.\n\n"
3956 " --help Show this help\n"
3957 " --halt Halt the machine\n"
3958 " -p --poweroff Switch off the machine\n"
3959 " --reboot Reboot the machine\n"
3960 " -f --force Force immediate halt/power-off/reboot\n"
3961 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
3962 " -d --no-wtmp Don't write wtmp record\n"
3963 " -n --no-sync Don't sync before halt/power-off/reboot\n"
3964 " --no-wall Don't send wall message before halt/power-off/reboot\n",
3965 program_invocation_short_name,
3966 arg_action == ACTION_REBOOT ? "Reboot" :
3967 arg_action == ACTION_POWEROFF ? "Power off" :
3973 static int shutdown_help(void) {
3975 printf("%s [OPTIONS...] [TIME] [WALL...]\n\n"
3976 "Shut down the system.\n\n"
3977 " --help Show this help\n"
3978 " -H --halt Halt the machine\n"
3979 " -P --poweroff Power-off the machine\n"
3980 " -r --reboot Reboot the machine\n"
3981 " -h Equivalent to --poweroff, overriden by --halt\n"
3982 " -k Don't halt/power-off/reboot, just send warnings\n"
3983 " --no-wall Don't send wall message before halt/power-off/reboot\n"
3984 " -c Cancel a pending shutdown\n",
3985 program_invocation_short_name);
3990 static int telinit_help(void) {
3992 printf("%s [OPTIONS...] {COMMAND}\n\n"
3993 "Send control commands to the init daemon.\n\n"
3994 " --help Show this help\n"
3995 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
3997 " 0 Power-off the machine\n"
3998 " 6 Reboot the machine\n"
3999 " 2, 3, 4, 5 Start runlevelX.target unit\n"
4000 " 1, s, S Enter rescue mode\n"
4001 " q, Q Reload init daemon configuration\n"
4002 " u, U Reexecute init daemon\n",
4003 program_invocation_short_name);
4008 static int runlevel_help(void) {
4010 printf("%s [OPTIONS...]\n\n"
4011 "Prints the previous and current runlevel of the init system.\n\n"
4012 " --help Show this help\n",
4013 program_invocation_short_name);
4018 static int systemctl_parse_argv(int argc, char *argv[]) {
4036 static const struct option options[] = {
4037 { "help", no_argument, NULL, 'h' },
4038 { "version", no_argument, NULL, ARG_VERSION },
4039 { "type", required_argument, NULL, 't' },
4040 { "property", required_argument, NULL, 'p' },
4041 { "all", no_argument, NULL, 'a' },
4042 { "full", no_argument, NULL, ARG_FULL },
4043 { "fail", no_argument, NULL, ARG_FAIL },
4044 { "session", no_argument, NULL, ARG_SESSION },
4045 { "system", no_argument, NULL, ARG_SYSTEM },
4046 { "global", no_argument, NULL, ARG_GLOBAL },
4047 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
4048 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4049 { "quiet", no_argument, NULL, 'q' },
4050 { "order", no_argument, NULL, ARG_ORDER },
4051 { "require", no_argument, NULL, ARG_REQUIRE },
4052 { "force", no_argument, NULL, ARG_FORCE },
4053 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
4054 { "defaults", no_argument, NULL, ARG_DEFAULTS },
4055 { NULL, 0, NULL, 0 }
4063 while ((c = getopt_long(argc, argv, "ht:p:aq", options, NULL)) >= 0) {
4072 puts(PACKAGE_STRING);
4074 puts(SYSTEMD_FEATURES);
4084 if (!(l = strv_append(arg_property, optarg)))
4087 strv_free(arg_property);
4090 /* If the user asked for a particular
4091 * property, show it to him, even if it is
4110 arg_session = false;
4114 arg_no_block = true;
4122 arg_dot = DOT_ORDER;
4126 arg_dot = DOT_REQUIRE;
4142 arg_no_reload = true;
4151 arg_defaults = true;
4158 log_error("Unknown option code %c", c);
4166 static int halt_parse_argv(int argc, char *argv[]) {
4175 static const struct option options[] = {
4176 { "help", no_argument, NULL, ARG_HELP },
4177 { "halt", no_argument, NULL, ARG_HALT },
4178 { "poweroff", no_argument, NULL, 'p' },
4179 { "reboot", no_argument, NULL, ARG_REBOOT },
4180 { "force", no_argument, NULL, 'f' },
4181 { "wtmp-only", no_argument, NULL, 'w' },
4182 { "no-wtmp", no_argument, NULL, 'd' },
4183 { "no-sync", no_argument, NULL, 'n' },
4184 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4185 { NULL, 0, NULL, 0 }
4193 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
4194 if (runlevel == '0' || runlevel == '6')
4195 arg_immediate = true;
4197 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
4205 arg_action = ACTION_HALT;
4209 if (arg_action != ACTION_REBOOT)
4210 arg_action = ACTION_POWEROFF;
4214 arg_action = ACTION_REBOOT;
4218 arg_immediate = true;
4239 /* Compatibility nops */
4246 log_error("Unknown option code %c", c);
4251 if (optind < argc) {
4252 log_error("Too many arguments.");
4259 static int parse_time_spec(const char *t, usec_t *_u) {
4263 if (streq(t, "now"))
4265 else if (t[0] == '+') {
4268 if (safe_atou64(t + 1, &u) < 0)
4271 *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u;
4280 hour = strtol(t, &e, 10);
4281 if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
4284 minute = strtol(e+1, &e, 10);
4285 if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
4288 n = now(CLOCK_REALTIME);
4289 s = (time_t) (n / USEC_PER_SEC);
4292 assert_se(localtime_r(&s, &tm));
4294 tm.tm_hour = (int) hour;
4295 tm.tm_min = (int) minute;
4298 assert_se(s = mktime(&tm));
4300 *_u = (usec_t) s * USEC_PER_SEC;
4303 *_u += USEC_PER_DAY;
4309 static int shutdown_parse_argv(int argc, char *argv[]) {
4316 static const struct option options[] = {
4317 { "help", no_argument, NULL, ARG_HELP },
4318 { "halt", no_argument, NULL, 'H' },
4319 { "poweroff", no_argument, NULL, 'P' },
4320 { "reboot", no_argument, NULL, 'r' },
4321 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4322 { NULL, 0, NULL, 0 }
4330 while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) {
4338 arg_action = ACTION_HALT;
4342 arg_action = ACTION_POWEROFF;
4346 arg_action = ACTION_REBOOT;
4350 if (arg_action != ACTION_HALT)
4351 arg_action = ACTION_POWEROFF;
4364 /* Compatibility nops */
4368 arg_action = ACTION_CANCEL_SHUTDOWN;
4375 log_error("Unknown option code %c", c);
4380 if (argc > optind) {
4381 if ((r = parse_time_spec(argv[optind], &arg_when)) < 0) {
4382 log_error("Failed to parse time specification: %s", argv[optind]);
4386 arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
4388 /* We skip the time argument */
4389 if (argc > optind + 1)
4390 arg_wall = argv + optind + 1;
4397 static int telinit_parse_argv(int argc, char *argv[]) {
4404 static const struct option options[] = {
4405 { "help", no_argument, NULL, ARG_HELP },
4406 { "no-wall", no_argument, NULL, ARG_NO_WALL },
4407 { NULL, 0, NULL, 0 }
4410 static const struct {
4414 { '0', ACTION_POWEROFF },
4415 { '6', ACTION_REBOOT },
4416 { '1', ACTION_RESCUE },
4417 { '2', ACTION_RUNLEVEL2 },
4418 { '3', ACTION_RUNLEVEL3 },
4419 { '4', ACTION_RUNLEVEL4 },
4420 { '5', ACTION_RUNLEVEL5 },
4421 { 's', ACTION_RESCUE },
4422 { 'S', ACTION_RESCUE },
4423 { 'q', ACTION_RELOAD },
4424 { 'Q', ACTION_RELOAD },
4425 { 'u', ACTION_REEXEC },
4426 { 'U', ACTION_REEXEC }
4435 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4450 log_error("Unknown option code %c", c);
4455 if (optind >= argc) {
4460 if (optind + 1 < argc) {
4461 log_error("Too many arguments.");
4465 if (strlen(argv[optind]) != 1) {
4466 log_error("Expected single character argument.");
4470 for (i = 0; i < ELEMENTSOF(table); i++)
4471 if (table[i].from == argv[optind][0])
4474 if (i >= ELEMENTSOF(table)) {
4475 log_error("Unknown command %s.", argv[optind]);
4479 arg_action = table[i].to;
4486 static int runlevel_parse_argv(int argc, char *argv[]) {
4492 static const struct option options[] = {
4493 { "help", no_argument, NULL, ARG_HELP },
4494 { NULL, 0, NULL, 0 }
4502 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
4513 log_error("Unknown option code %c", c);
4518 if (optind < argc) {
4519 log_error("Too many arguments.");
4526 static int parse_argv(int argc, char *argv[]) {
4530 if (program_invocation_short_name) {
4532 if (strstr(program_invocation_short_name, "halt")) {
4533 arg_action = ACTION_HALT;
4534 return halt_parse_argv(argc, argv);
4535 } else if (strstr(program_invocation_short_name, "poweroff")) {
4536 arg_action = ACTION_POWEROFF;
4537 return halt_parse_argv(argc, argv);
4538 } else if (strstr(program_invocation_short_name, "reboot")) {
4539 arg_action = ACTION_REBOOT;
4540 return halt_parse_argv(argc, argv);
4541 } else if (strstr(program_invocation_short_name, "shutdown")) {
4542 arg_action = ACTION_POWEROFF;
4543 return shutdown_parse_argv(argc, argv);
4544 } else if (strstr(program_invocation_short_name, "init")) {
4546 if (sd_booted() > 0) {
4547 arg_action = ACTION_INVALID;
4548 return telinit_parse_argv(argc, argv);
4550 /* Hmm, so some other init system is
4551 * running, we need to forward this
4552 * request to it. For now we simply
4553 * guess that it is Upstart. */
4555 execv("/lib/upstart/telinit", argv);
4557 log_error("Couldn't find an alternative telinit implementation to spawn.");
4561 } else if (strstr(program_invocation_short_name, "runlevel")) {
4562 arg_action = ACTION_RUNLEVEL;
4563 return runlevel_parse_argv(argc, argv);
4567 arg_action = ACTION_SYSTEMCTL;
4568 return systemctl_parse_argv(argc, argv);
4571 static int action_to_runlevel(void) {
4573 static const char table[_ACTION_MAX] = {
4574 [ACTION_HALT] = '0',
4575 [ACTION_POWEROFF] = '0',
4576 [ACTION_REBOOT] = '6',
4577 [ACTION_RUNLEVEL2] = '2',
4578 [ACTION_RUNLEVEL3] = '3',
4579 [ACTION_RUNLEVEL4] = '4',
4580 [ACTION_RUNLEVEL5] = '5',
4581 [ACTION_RESCUE] = '1'
4584 assert(arg_action < _ACTION_MAX);
4586 return table[arg_action];
4589 static int talk_upstart(void) {
4590 DBusMessage *m = NULL, *reply = NULL;
4592 int previous, rl, r;
4594 env1_buf[] = "RUNLEVEL=X",
4595 env2_buf[] = "PREVLEVEL=X";
4596 char *env1 = env1_buf, *env2 = env2_buf;
4597 const char *emit = "runlevel";
4598 dbus_bool_t b_false = FALSE;
4599 DBusMessageIter iter, sub;
4600 DBusConnection *bus;
4602 dbus_error_init(&error);
4604 if (!(rl = action_to_runlevel()))
4607 if (utmp_get_runlevel(&previous, NULL) < 0)
4610 if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) {
4611 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
4616 log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error));
4621 if ((r = bus_check_peercred(bus)) < 0) {
4622 log_error("Failed to verify owner of bus.");
4626 if (!(m = dbus_message_new_method_call(
4627 "com.ubuntu.Upstart",
4628 "/com/ubuntu/Upstart",
4629 "com.ubuntu.Upstart0_6",
4632 log_error("Could not allocate message.");
4637 dbus_message_iter_init_append(m, &iter);
4639 env1_buf[sizeof(env1_buf)-2] = rl;
4640 env2_buf[sizeof(env2_buf)-2] = previous;
4642 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
4643 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
4644 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
4645 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
4646 !dbus_message_iter_close_container(&iter, &sub) ||
4647 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
4648 log_error("Could not append arguments to message.");
4653 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
4655 if (error_is_no_service(&error)) {
4660 log_error("Failed to issue method call: %s", bus_error_message(&error));
4669 dbus_message_unref(m);
4672 dbus_message_unref(reply);
4675 dbus_connection_flush(bus);
4676 dbus_connection_close(bus);
4677 dbus_connection_unref(bus);
4680 dbus_error_free(&error);
4685 static int talk_initctl(void) {
4686 struct init_request request;
4690 if (!(rl = action_to_runlevel()))
4694 request.magic = INIT_MAGIC;
4695 request.sleeptime = 0;
4696 request.cmd = INIT_CMD_RUNLVL;
4697 request.runlevel = rl;
4699 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
4701 if (errno == ENOENT)
4704 log_error("Failed to open "INIT_FIFO": %m");
4709 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
4710 close_nointr_nofail(fd);
4713 log_error("Failed to write to "INIT_FIFO": %m");
4714 return errno ? -errno : -EIO;
4720 static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) {
4722 static const struct {
4730 int (* const dispatch)(DBusConnection *bus, char **args, unsigned n);
4732 { "list-units", LESS, 1, list_units },
4733 { "list-jobs", EQUAL, 1, list_jobs },
4734 { "clear-jobs", EQUAL, 1, daemon_reload },
4735 { "load", MORE, 2, load_unit },
4736 { "cancel", MORE, 2, cancel_job },
4737 { "start", MORE, 2, start_unit },
4738 { "stop", MORE, 2, start_unit },
4739 { "reload", MORE, 2, start_unit },
4740 { "restart", MORE, 2, start_unit },
4741 { "try-restart", MORE, 2, start_unit },
4742 { "reload-or-restart", MORE, 2, start_unit },
4743 { "reload-or-try-restart", MORE, 2, start_unit },
4744 { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */
4745 { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */
4746 { "isolate", EQUAL, 2, start_unit },
4747 { "is-active", MORE, 2, check_unit },
4748 { "check", MORE, 2, check_unit },
4749 { "show", MORE, 1, show },
4750 { "status", MORE, 2, show },
4751 { "monitor", EQUAL, 1, monitor },
4752 { "dump", EQUAL, 1, dump },
4753 { "dot", EQUAL, 1, dot },
4754 { "snapshot", LESS, 2, snapshot },
4755 { "delete", MORE, 2, delete_snapshot },
4756 { "daemon-reload", EQUAL, 1, daemon_reload },
4757 { "daemon-reexec", EQUAL, 1, daemon_reload },
4758 { "daemon-exit", EQUAL, 1, daemon_reload },
4759 { "show-environment", EQUAL, 1, show_enviroment },
4760 { "set-environment", MORE, 2, set_environment },
4761 { "unset-environment", MORE, 2, set_environment },
4762 { "halt", EQUAL, 1, start_special },
4763 { "poweroff", EQUAL, 1, start_special },
4764 { "reboot", EQUAL, 1, start_special },
4765 { "default", EQUAL, 1, start_special },
4766 { "rescue", EQUAL, 1, start_special },
4767 { "emergency", EQUAL, 1, start_special },
4768 { "reset-failed", MORE, 1, reset_failed },
4769 { "enable", MORE, 2, enable_unit },
4770 { "disable", MORE, 2, enable_unit },
4771 { "is-enabled", MORE, 2, enable_unit }
4781 left = argc - optind;
4784 /* Special rule: no arguments means "list-units" */
4787 if (streq(argv[optind], "help")) {
4792 for (i = 0; i < ELEMENTSOF(verbs); i++)
4793 if (streq(argv[optind], verbs[i].verb))
4796 if (i >= ELEMENTSOF(verbs)) {
4797 log_error("Unknown operation %s", argv[optind]);
4802 switch (verbs[i].argc_cmp) {
4805 if (left != verbs[i].argc) {
4806 log_error("Invalid number of arguments.");
4813 if (left < verbs[i].argc) {
4814 log_error("Too few arguments.");
4821 if (left > verbs[i].argc) {
4822 log_error("Too many arguments.");
4829 assert_not_reached("Unknown comparison operator.");
4832 /* Require a bus connection for all operations but
4834 if (!streq(verbs[i].verb, "enable") &&
4835 !streq(verbs[i].verb, "disable") &&
4837 log_error("Failed to get D-Bus connection: %s", error->message);
4841 return verbs[i].dispatch(bus, argv + optind, left);
4844 static int send_shutdownd(usec_t t, char mode, bool warn, const char *message) {
4846 struct msghdr msghdr;
4848 union sockaddr_union sockaddr;
4849 struct shutdownd_command c;
4857 strncpy(c.wall_message, message, sizeof(c.wall_message));
4859 if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0)
4863 sockaddr.sa.sa_family = AF_UNIX;
4864 sockaddr.un.sun_path[0] = 0;
4865 strncpy(sockaddr.un.sun_path+1, "/org/freedesktop/systemd1/shutdownd", sizeof(sockaddr.un.sun_path)-1);
4868 iovec.iov_base = (char*) &c;
4869 iovec.iov_len = sizeof(c);
4872 msghdr.msg_name = &sockaddr;
4873 msghdr.msg_namelen = sizeof(sa_family_t) + 1 + sizeof("/org/freedesktop/systemd1/shutdownd") - 1;
4875 msghdr.msg_iov = &iovec;
4876 msghdr.msg_iovlen = 1;
4878 if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
4879 close_nointr_nofail(fd);
4883 close_nointr_nofail(fd);
4887 static int reload_with_fallback(DBusConnection *bus) {
4890 /* First, try systemd via D-Bus. */
4891 if (daemon_reload(bus, NULL, 0) > 0)
4895 /* Nothing else worked, so let's try signals */
4896 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
4898 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
4899 log_error("kill() failed: %m");
4906 static int start_with_fallback(DBusConnection *bus) {
4909 /* First, try systemd via D-Bus. */
4910 if (start_unit(bus, NULL, 0) >= 0)
4914 /* Hmm, talking to systemd via D-Bus didn't work. Then
4915 * let's try to talk to Upstart via D-Bus. */
4916 if (talk_upstart() > 0)
4919 /* Nothing else worked, so let's try
4921 if (talk_initctl() > 0)
4924 log_error("Failed to talk to init daemon.");
4928 warn_wall(arg_action);
4932 static int halt_main(DBusConnection *bus) {
4935 if (geteuid() != 0) {
4936 log_error("Must be root.");
4942 char date[FORMAT_TIMESTAMP_MAX];
4944 m = strv_join(arg_wall, " ");
4945 r = send_shutdownd(arg_when,
4946 arg_action == ACTION_HALT ? 'H' :
4947 arg_action == ACTION_POWEROFF ? 'P' :
4954 log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
4956 log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.",
4957 format_timestamp(date, sizeof(date), arg_when));
4962 if (!arg_dry && !arg_immediate)
4963 return start_with_fallback(bus);
4966 if (sd_booted() > 0)
4967 log_debug("Not writing utmp record, assuming that systemd-update-utmp is used.");
4968 else if ((r = utmp_put_shutdown(0)) < 0)
4969 log_warning("Failed to write utmp record: %s", strerror(-r));
4978 /* Make sure C-A-D is handled by the kernel from this
4980 reboot(RB_ENABLE_CAD);
4982 switch (arg_action) {
4985 log_info("Halting.");
4986 reboot(RB_HALT_SYSTEM);
4989 case ACTION_POWEROFF:
4990 log_info("Powering off.");
4991 reboot(RB_POWER_OFF);
4995 log_info("Rebooting.");
4996 reboot(RB_AUTOBOOT);
5000 assert_not_reached("Unknown halt action.");
5003 /* We should never reach this. */
5007 static int runlevel_main(void) {
5008 int r, runlevel, previous;
5010 if ((r = utmp_get_runlevel(&runlevel, &previous)) < 0) {
5011 printf("unknown\n");
5016 previous <= 0 ? 'N' : previous,
5017 runlevel <= 0 ? 'N' : runlevel);
5022 int main(int argc, char*argv[]) {
5023 int r, retval = EXIT_FAILURE;
5024 DBusConnection *bus = NULL;
5027 dbus_error_init(&error);
5029 log_parse_environment();
5032 if ((r = parse_argv(argc, argv)) < 0)
5035 retval = EXIT_SUCCESS;
5039 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
5040 * let's shortcut this */
5041 if (arg_action == ACTION_RUNLEVEL) {
5042 r = runlevel_main();
5043 retval = r < 0 ? EXIT_FAILURE : r;
5047 bus_connect(arg_session ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &bus, &private_bus, &error);
5049 switch (arg_action) {
5051 case ACTION_SYSTEMCTL:
5052 r = systemctl_main(bus, argc, argv, &error);
5056 case ACTION_POWEROFF:
5061 case ACTION_RUNLEVEL2:
5062 case ACTION_RUNLEVEL3:
5063 case ACTION_RUNLEVEL4:
5064 case ACTION_RUNLEVEL5:
5066 case ACTION_EMERGENCY:
5067 case ACTION_DEFAULT:
5068 r = start_with_fallback(bus);
5073 r = reload_with_fallback(bus);
5076 case ACTION_CANCEL_SHUTDOWN:
5077 r = send_shutdownd(0, 0, false, NULL);
5080 case ACTION_INVALID:
5081 case ACTION_RUNLEVEL:
5083 assert_not_reached("Unknown action");
5086 retval = r < 0 ? EXIT_FAILURE : r;
5091 dbus_connection_flush(bus);
5092 dbus_connection_close(bus);
5093 dbus_connection_unref(bus);
5096 dbus_error_free(&error);
5100 strv_free(arg_property);