1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
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>
34 #include <dbus/dbus.h>
40 #include "utmp-wtmp.h"
45 static const char *arg_type = NULL;
46 static const char *arg_property = NULL;
47 static bool arg_all = false;
48 static bool arg_replace = false;
49 static bool arg_session = false;
50 static bool arg_no_block = false;
51 static bool arg_immediate = false;
52 static bool arg_no_wtmp = false;
53 static bool arg_no_sync = false;
54 static bool arg_no_wall = false;
55 static bool arg_dry = false;
56 static bool arg_quiet = false;
57 static char **arg_wall = NULL;
75 } arg_action = ACTION_SYSTEMCTL;
77 static bool error_is_no_service(DBusError *error) {
81 if (!dbus_error_is_set(error))
84 if (dbus_error_has_name(error, DBUS_ERROR_NAME_HAS_NO_OWNER))
87 if (dbus_error_has_name(error, DBUS_ERROR_SERVICE_UNKNOWN))
90 return startswith(error->name, "org.freedesktop.DBus.Error.Spawn.");
93 static int bus_iter_get_basic_and_next(DBusMessageIter *iter, int type, void *data, bool next) {
98 if (dbus_message_iter_get_arg_type(iter) != type)
101 dbus_message_iter_get_basic(iter, data);
103 if (!dbus_message_iter_next(iter) != !next)
109 static int bus_check_peercred(DBusConnection *c) {
116 assert_se(dbus_connection_get_unix_fd(c, &fd));
118 l = sizeof(struct ucred);
119 if (getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &ucred, &l) < 0) {
120 log_error("SO_PEERCRED failed: %m");
124 if (l != sizeof(struct ucred)) {
125 log_error("SO_PEERCRED returned wrong size.");
135 static int columns(void) {
136 static int parsed_columns = 0;
139 if (parsed_columns > 0)
140 return parsed_columns;
142 if ((e = getenv("COLUMNS")))
143 parsed_columns = atoi(e);
145 if (parsed_columns <= 0) {
149 if (ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) >= 0)
150 parsed_columns = ws.ws_col;
153 if (parsed_columns <= 0)
156 return parsed_columns;
160 static void warn_wall(enum action action) {
161 static const char *table[_ACTION_MAX] = {
162 [ACTION_HALT] = "The system is going down for system halt NOW!",
163 [ACTION_REBOOT] = "The system is going down for reboot NOW!",
164 [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
165 [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
166 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!"
175 if (!(p = strv_join(arg_wall, " "))) {
176 log_error("Failed to join strings.");
192 utmp_wall(table[action]);
195 static int list_units(DBusConnection *bus, char **args, unsigned n) {
196 DBusMessage *m = NULL, *reply = NULL;
199 DBusMessageIter iter, sub, sub2;
202 dbus_error_init(&error);
206 if (!(m = dbus_message_new_method_call(
207 "org.freedesktop.systemd1",
208 "/org/freedesktop/systemd1",
209 "org.freedesktop.systemd1.Manager",
211 log_error("Could not allocate message.");
215 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
216 log_error("Failed to issue method call: %s", error.message);
221 if (!dbus_message_iter_init(reply, &iter) ||
222 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
223 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
224 log_error("Failed to parse reply.");
229 dbus_message_iter_recurse(&iter, &sub);
231 printf("%-45s %-6s %-12s %-12s %-15s %s\n", "UNIT", "LOAD", "ACTIVE", "SUB", "JOB", "DESCRIPTION");
233 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
234 const char *id, *description, *load_state, *active_state, *sub_state, *unit_state, *job_type, *job_path, *dot;
237 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
238 log_error("Failed to parse reply.");
243 dbus_message_iter_recurse(&sub, &sub2);
245 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
246 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
247 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
248 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
249 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
250 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_state, true) < 0 ||
251 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &job_id, true) < 0 ||
252 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &job_type, true) < 0 ||
253 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, false) < 0) {
254 log_error("Failed to parse reply.");
259 if ((!arg_type || ((dot = strrchr(id, '.')) &&
260 streq(dot+1, arg_type))) &&
261 (arg_all || !streq(active_state, "inactive"))) {
265 printf("%-45s %-6s %-12s %-12s%n", id, load_state, active_state, sub_state, &a);
268 printf(" %-15s%n", job_type, &b);
272 if (a + b + 2 < columns()) {
276 printf("%.*s", columns() - a - b - 2, description);
283 dbus_message_iter_next(&sub);
287 printf("\n%u units listed.\n", k);
289 printf("\n%u live units listed. Pass --all to see dead units, too.\n", k);
295 dbus_message_unref(m);
298 dbus_message_unref(reply);
300 dbus_error_free(&error);
305 static int list_jobs(DBusConnection *bus, char **args, unsigned n) {
306 DBusMessage *m = NULL, *reply = NULL;
309 DBusMessageIter iter, sub, sub2;
312 dbus_error_init(&error);
316 if (!(m = dbus_message_new_method_call(
317 "org.freedesktop.systemd1",
318 "/org/freedesktop/systemd1",
319 "org.freedesktop.systemd1.Manager",
321 log_error("Could not allocate message.");
325 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
326 log_error("Failed to issue method call: %s", error.message);
331 if (!dbus_message_iter_init(reply, &iter) ||
332 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
333 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) {
334 log_error("Failed to parse reply.");
339 dbus_message_iter_recurse(&iter, &sub);
341 printf("%4s %-45s %-17s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
343 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
344 const char *name, *type, *state, *job_path, *unit_path;
347 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
348 log_error("Failed to parse reply.");
353 dbus_message_iter_recurse(&sub, &sub2);
355 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
356 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
357 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
358 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
359 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
360 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
361 log_error("Failed to parse reply.");
366 printf("%4u %-45s %-17s %-7s\n", id, name, type, state);
369 dbus_message_iter_next(&sub);
372 printf("\n%u jobs listed.\n", k);
377 dbus_message_unref(m);
380 dbus_message_unref(reply);
382 dbus_error_free(&error);
387 static int load_unit(DBusConnection *bus, char **args, unsigned n) {
388 DBusMessage *m = NULL, *reply = NULL;
393 dbus_error_init(&error);
398 for (i = 1; i < n; i++) {
400 if (!(m = dbus_message_new_method_call(
401 "org.freedesktop.systemd1",
402 "/org/freedesktop/systemd1",
403 "org.freedesktop.systemd1.Manager",
405 log_error("Could not allocate message.");
410 if (!dbus_message_append_args(m,
411 DBUS_TYPE_STRING, &args[i],
412 DBUS_TYPE_INVALID)) {
413 log_error("Could not append arguments to message.");
418 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
419 log_error("Failed to issue method call: %s", error.message);
424 dbus_message_unref(m);
425 dbus_message_unref(reply);
434 dbus_message_unref(m);
437 dbus_message_unref(reply);
439 dbus_error_free(&error);
444 static int cancel_job(DBusConnection *bus, char **args, unsigned n) {
445 DBusMessage *m = NULL, *reply = NULL;
450 dbus_error_init(&error);
455 for (i = 1; i < n; i++) {
459 if (!(m = dbus_message_new_method_call(
460 "org.freedesktop.systemd1",
461 "/org/freedesktop/systemd1",
462 "org.freedesktop.systemd1.Manager",
464 log_error("Could not allocate message.");
469 if ((r = safe_atou(args[i], &id)) < 0) {
470 log_error("Failed to parse job id: %s", strerror(-r));
474 assert_cc(sizeof(uint32_t) == sizeof(id));
475 if (!dbus_message_append_args(m,
476 DBUS_TYPE_UINT32, &id,
477 DBUS_TYPE_INVALID)) {
478 log_error("Could not append arguments to message.");
483 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
484 log_error("Failed to issue method call: %s", error.message);
489 if (!dbus_message_get_args(reply, &error,
490 DBUS_TYPE_OBJECT_PATH, &path,
491 DBUS_TYPE_INVALID)) {
492 log_error("Failed to parse reply: %s", error.message);
497 dbus_message_unref(m);
498 if (!(m = dbus_message_new_method_call(
499 "org.freedesktop.systemd1",
501 "org.freedesktop.systemd1.Job",
503 log_error("Could not allocate message.");
508 dbus_message_unref(reply);
509 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
510 log_error("Failed to issue method call: %s", error.message);
515 dbus_message_unref(m);
516 dbus_message_unref(reply);
524 dbus_message_unref(m);
527 dbus_message_unref(reply);
529 dbus_error_free(&error);
534 typedef struct WaitData {
539 static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
547 dbus_error_init(&error);
549 /* log_debug("Got D-Bus request: %s.%s() on %s", */
550 /* dbus_message_get_interface(message), */
551 /* dbus_message_get_member(message), */
552 /* dbus_message_get_path(message)); */
554 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
555 log_error("Warning! D-Bus connection terminated.");
556 dbus_connection_close(connection);
558 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
561 dbus_bool_t success = true;
563 if (!dbus_message_get_args(message, &error,
564 DBUS_TYPE_UINT32, &id,
565 DBUS_TYPE_OBJECT_PATH, &path,
566 DBUS_TYPE_BOOLEAN, &success,
568 log_error("Failed to parse message: %s", error.message);
572 if ((p = set_remove(d->set, (char*) path)))
580 dbus_error_free(&error);
581 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
584 static int enable_wait_for_jobs(DBusConnection *bus) {
586 DBusMessage *m = NULL, *reply = NULL;
591 dbus_error_init(&error);
593 dbus_bus_add_match(bus,
595 "sender='org.freedesktop.systemd1',"
596 "interface='org.freedesktop.systemd1.Manager',"
597 "member='JobRemoved',"
598 "path='/org/freedesktop/systemd1'",
601 if (dbus_error_is_set(&error)) {
602 log_error("Failed to add match: %s", error.message);
607 if (!(m = dbus_message_new_method_call(
608 "org.freedesktop.systemd1",
609 "/org/freedesktop/systemd1",
610 "org.freedesktop.systemd1.Manager",
612 log_error("Could not allocate message.");
617 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
618 log_error("Failed to issue method call: %s", error.message);
626 /* This is slightly dirty, since we don't undo the match registrations. */
629 dbus_message_unref(m);
632 dbus_message_unref(reply);
634 dbus_error_free(&error);
639 static int wait_for_jobs(DBusConnection *bus, Set *s) {
650 if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
651 log_error("Failed to add filter.");
656 while (!set_isempty(s) &&
657 dbus_connection_read_write_dispatch(bus, -1))
660 if (!arg_quiet && d.failed)
661 log_error("Job failed, see logs for details.");
663 r = d.failed ? -EIO : 0;
666 /* This is slightly dirty, since we don't undo the filter registration. */
671 static int start_unit_one(
678 DBusMessage *m = NULL, *reply = NULL;
686 assert(arg_no_block || s);
688 dbus_error_init(&error);
690 if (!(m = dbus_message_new_method_call(
691 "org.freedesktop.systemd1",
692 "/org/freedesktop/systemd1",
693 "org.freedesktop.systemd1.Manager",
695 log_error("Could not allocate message.");
700 if (!dbus_message_append_args(m,
701 DBUS_TYPE_STRING, &name,
702 DBUS_TYPE_STRING, &mode,
703 DBUS_TYPE_INVALID)) {
704 log_error("Could not append arguments to message.");
709 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
711 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
712 /* There's always a fallback possible for
718 log_error("Failed to issue method call: %s", error.message);
727 if (!dbus_message_get_args(reply, &error,
728 DBUS_TYPE_OBJECT_PATH, &path,
729 DBUS_TYPE_INVALID)) {
730 log_error("Failed to parse reply: %s", error.message);
735 if (!(p = strdup(path))) {
736 log_error("Failed to duplicate path.");
741 if ((r = set_put(s, p)) < 0) {
743 log_error("Failed to add path to set.");
752 dbus_message_unref(m);
755 dbus_message_unref(reply);
757 dbus_error_free(&error);
762 static enum action verb_to_action(const char *verb) {
763 if (streq(verb, "halt"))
765 else if (streq(verb, "poweroff"))
766 return ACTION_POWEROFF;
767 else if (streq(verb, "reboot"))
768 return ACTION_REBOOT;
769 else if (streq(verb, "rescue"))
770 return ACTION_RESCUE;
771 else if (streq(verb, "emergency"))
772 return ACTION_EMERGENCY;
773 else if (streq(verb, "default"))
774 return ACTION_DEFAULT;
776 return ACTION_INVALID;
779 static int start_unit(DBusConnection *bus, char **args, unsigned n) {
781 static const char * const table[_ACTION_MAX] = {
782 [ACTION_HALT] = SPECIAL_HALT_TARGET,
783 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
784 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
785 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
786 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
787 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
788 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
789 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
790 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_SERVICE,
791 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET
796 const char *method, *mode, *one_name;
801 if (arg_action == ACTION_SYSTEMCTL) {
803 streq(args[0], "stop") ? "StopUnit" :
804 streq(args[0], "reload") ? "ReloadUnit" :
805 streq(args[0], "restart") ? "RestartUnit" :
809 (streq(args[0], "isolate") ||
810 streq(args[0], "rescue") ||
811 streq(args[0], "emergency")) ? "isolate" :
812 arg_replace ? "replace" :
815 one_name = table[verb_to_action(args[0])];
818 assert(arg_action < ELEMENTSOF(table));
819 assert(table[arg_action]);
821 method = "StartUnit";
823 mode = (arg_action == ACTION_EMERGENCY ||
824 arg_action == ACTION_RESCUE) ? "isolate" : "replace";
826 one_name = table[arg_action];
830 if ((r = enable_wait_for_jobs(bus)) < 0) {
831 log_error("Could not watch jobs: %s", strerror(-r));
835 if (!(s = set_new(string_hash_func, string_compare_func))) {
836 log_error("Failed to allocate set.");
845 if ((r = start_unit_one(bus, method, one_name, mode, s)) <= 0)
848 for (i = 1; i < n; i++)
849 if ((r = start_unit_one(bus, method, args[i], mode, s)) < 0)
854 r = wait_for_jobs(bus, s);
863 static int start_special(DBusConnection *bus, char **args, unsigned n) {
867 warn_wall(verb_to_action(args[0]));
869 return start_unit(bus, args, n);
872 static int check_unit(DBusConnection *bus, char **args, unsigned n) {
873 DBusMessage *m = NULL, *reply = NULL;
875 *interface = "org.freedesktop.systemd1.Unit",
876 *property = "ActiveState";
877 int r = -EADDRNOTAVAIL;
884 dbus_error_init(&error);
886 for (i = 1; i < n; i++) {
887 const char *path = NULL;
889 DBusMessageIter iter, sub;
891 if (!(m = dbus_message_new_method_call(
892 "org.freedesktop.systemd1",
893 "/org/freedesktop/systemd1",
894 "org.freedesktop.systemd1.Manager",
896 log_error("Could not allocate message.");
901 if (!dbus_message_append_args(m,
902 DBUS_TYPE_STRING, &args[i],
903 DBUS_TYPE_INVALID)) {
904 log_error("Could not append arguments to message.");
909 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
911 /* Hmm, cannot figure out anything about this unit... */
918 if (!dbus_message_get_args(reply, &error,
919 DBUS_TYPE_OBJECT_PATH, &path,
920 DBUS_TYPE_INVALID)) {
921 log_error("Failed to parse reply: %s", error.message);
926 dbus_message_unref(m);
927 if (!(m = dbus_message_new_method_call(
928 "org.freedesktop.systemd1",
930 "org.freedesktop.DBus.Properties",
932 log_error("Could not allocate message.");
937 if (!dbus_message_append_args(m,
938 DBUS_TYPE_STRING, &interface,
939 DBUS_TYPE_STRING, &property,
940 DBUS_TYPE_INVALID)) {
941 log_error("Could not append arguments to message.");
946 dbus_message_unref(reply);
947 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
948 log_error("Failed to issue method call: %s", error.message);
953 if (!dbus_message_iter_init(reply, &iter) ||
954 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
955 log_error("Failed to parse reply.");
960 dbus_message_iter_recurse(&iter, &sub);
962 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
963 log_error("Failed to parse reply.");
968 dbus_message_iter_get_basic(&sub, &state);
973 if (streq(state, "active") || startswith(state, "reloading"))
976 dbus_message_unref(m);
977 dbus_message_unref(reply);
983 dbus_message_unref(m);
986 dbus_message_unref(reply);
988 dbus_error_free(&error);
993 static int print_property(const char *name, DBusMessageIter *iter) {
997 if (arg_property && !streq(name, arg_property))
1000 switch (dbus_message_iter_get_arg_type(iter)) {
1002 case DBUS_TYPE_STRING: {
1004 dbus_message_iter_get_basic(iter, &s);
1006 if (arg_all || s[0])
1007 printf("%s=%s\n", name, s);
1012 case DBUS_TYPE_BOOLEAN: {
1014 dbus_message_iter_get_basic(iter, &b);
1015 printf("%s=%s\n", name, yes_no(b));
1020 case DBUS_TYPE_UINT64: {
1022 dbus_message_iter_get_basic(iter, &u);
1024 /* Yes, heuristics! But we can change this check
1025 * should it turn out to not be sufficient */
1027 if (strstr(name, "Timestamp")) {
1028 char timestamp[FORMAT_TIMESTAMP_MAX], *t;
1030 if ((t = format_timestamp(timestamp, sizeof(timestamp), u)) || arg_all)
1031 printf("%s=%s\n", name, strempty(t));
1033 printf("%s=%llu\n", name, (unsigned long long) u);
1038 case DBUS_TYPE_UINT32: {
1040 dbus_message_iter_get_basic(iter, &u);
1042 if (strstr(name, "UMask") || strstr(name, "Mode"))
1043 printf("%s=%04o\n", name, u);
1045 printf("%s=%u\n", name, (unsigned) u);
1050 case DBUS_TYPE_INT32: {
1052 dbus_message_iter_get_basic(iter, &i);
1054 printf("%s=%i\n", name, (int) i);
1058 case DBUS_TYPE_STRUCT: {
1059 DBusMessageIter sub;
1060 dbus_message_iter_recurse(iter, &sub);
1062 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
1065 dbus_message_iter_get_basic(&sub, &u);
1068 printf("%s=%u\n", name, (unsigned) u);
1070 printf("%s=\n", name);
1073 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
1076 dbus_message_iter_get_basic(&sub, &s);
1078 if (arg_all || s[0])
1079 printf("%s=%s\n", name, s);
1087 case DBUS_TYPE_ARRAY:
1089 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
1090 DBusMessageIter sub;
1093 dbus_message_iter_recurse(iter, &sub);
1096 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1097 printf("%s=", name);
1099 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1102 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
1103 dbus_message_iter_get_basic(&sub, &s);
1104 printf("%s%s", space ? " " : "", s);
1107 dbus_message_iter_next(&sub);
1114 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_BYTE) {
1115 DBusMessageIter sub;
1117 dbus_message_iter_recurse(iter, &sub);
1120 dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1121 printf("%s=", name);
1123 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1126 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_BYTE);
1127 dbus_message_iter_get_basic(&sub, &u);
1130 dbus_message_iter_next(&sub);
1137 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
1138 DBusMessageIter sub, sub2;
1140 dbus_message_iter_recurse(iter, &sub);
1142 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
1143 const char *type, *path;
1145 dbus_message_iter_recurse(&sub, &sub2);
1147 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
1148 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
1149 printf("%s=%s\n", type, path);
1151 dbus_message_iter_next(&sub);
1155 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
1156 DBusMessageIter sub, sub2;
1158 dbus_message_iter_recurse(iter, &sub);
1160 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
1162 uint64_t value, next_elapse;
1164 dbus_message_iter_recurse(&sub, &sub2);
1166 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
1167 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
1168 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0)
1169 printf("%s={ value=%llu ; next_elapse=%llu }\n",
1171 (unsigned long long) value,
1172 (unsigned long long) next_elapse);
1174 dbus_message_iter_next(&sub);
1178 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
1180 DBusMessageIter sub, sub2, sub3;
1182 dbus_message_iter_recurse(iter, &sub);
1184 while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
1186 uint64_t start_time, exit_time;
1188 int32_t code, status;
1190 dbus_message_iter_recurse(&sub, &sub2);
1192 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
1195 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
1196 dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
1199 printf("%s={ path=%s ; argv[]=", name, path);
1201 dbus_message_iter_recurse(&sub2, &sub3);
1203 while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1206 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1207 dbus_message_iter_get_basic(&sub3, &s);
1209 dbus_message_iter_next(&sub3);
1212 if (dbus_message_iter_next(&sub2) &&
1213 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_time, true) >= 0 &&
1214 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_time, true) >= 0 &&
1215 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) >= 0 &&
1216 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) >= 0 &&
1217 bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) >= 0) {
1219 char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
1221 printf("; start=%s ; stop=%s ; pid=%u ; code=%s ; status=%i/%s",
1222 strna(format_timestamp(timestamp1, sizeof(timestamp1), start_time)),
1223 strna(format_timestamp(timestamp2, sizeof(timestamp2), exit_time)),
1225 sigchld_code_to_string(code),
1227 strna(code == CLD_EXITED ? NULL : strsignal(status)));
1232 dbus_message_iter_next(&sub);
1242 printf("%s=[unprintable]\n", name);
1247 static int show_one(DBusConnection *bus, const char *path) {
1248 DBusMessage *m = NULL, *reply = NULL;
1249 const char *interface = "";
1252 DBusMessageIter iter, sub, sub2, sub3;
1257 dbus_error_init(&error);
1259 if (!(m = dbus_message_new_method_call(
1260 "org.freedesktop.systemd1",
1262 "org.freedesktop.DBus.Properties",
1264 log_error("Could not allocate message.");
1269 if (!dbus_message_append_args(m,
1270 DBUS_TYPE_STRING, &interface,
1271 DBUS_TYPE_INVALID)) {
1272 log_error("Could not append arguments to message.");
1277 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1278 log_error("Failed to issue method call: %s", error.message);
1283 if (!dbus_message_iter_init(reply, &iter) ||
1284 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
1285 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) {
1286 log_error("Failed to parse reply.");
1291 dbus_message_iter_recurse(&iter, &sub);
1293 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1296 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
1297 log_error("Failed to parse reply.");
1302 dbus_message_iter_recurse(&sub, &sub2);
1304 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
1305 log_error("Failed to parse reply.");
1310 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) {
1311 log_error("Failed to parse reply.");
1316 dbus_message_iter_recurse(&sub2, &sub3);
1318 if (print_property(name, &sub3) < 0) {
1319 log_error("Failed to parse reply.");
1324 dbus_message_iter_next(&sub);
1331 dbus_message_unref(m);
1334 dbus_message_unref(reply);
1336 dbus_error_free(&error);
1341 static int show(DBusConnection *bus, char **args, unsigned n) {
1342 DBusMessage *m = NULL, *reply = NULL;
1350 dbus_error_init(&error);
1353 /* If not argument is specified inspect the manager
1356 r = show_one(bus, "/org/freedesktop/systemd1");
1360 for (i = 1; i < n; i++) {
1361 const char *path = NULL;
1364 if (safe_atou32(args[i], &id) < 0) {
1366 if (!(m = dbus_message_new_method_call(
1367 "org.freedesktop.systemd1",
1368 "/org/freedesktop/systemd1",
1369 "org.freedesktop.systemd1.Manager",
1371 log_error("Could not allocate message.");
1376 if (!dbus_message_append_args(m,
1377 DBUS_TYPE_STRING, &args[i],
1378 DBUS_TYPE_INVALID)) {
1379 log_error("Could not append arguments to message.");
1386 if (!(m = dbus_message_new_method_call(
1387 "org.freedesktop.systemd1",
1388 "/org/freedesktop/systemd1",
1389 "org.freedesktop.systemd1.Manager",
1391 log_error("Could not allocate message.");
1396 if (!dbus_message_append_args(m,
1397 DBUS_TYPE_UINT32, &id,
1398 DBUS_TYPE_INVALID)) {
1399 log_error("Could not append arguments to message.");
1405 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1406 log_error("Failed to issue method call: %s", error.message);
1411 if (!dbus_message_get_args(reply, &error,
1412 DBUS_TYPE_OBJECT_PATH, &path,
1413 DBUS_TYPE_INVALID)) {
1414 log_error("Failed to parse reply: %s", error.message);
1419 if ((r = show_one(bus, path)) < 0)
1422 dbus_message_unref(m);
1423 dbus_message_unref(reply);
1431 dbus_message_unref(m);
1434 dbus_message_unref(reply);
1436 dbus_error_free(&error);
1441 static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) {
1443 DBusMessage *m = NULL, *reply = NULL;
1448 dbus_error_init(&error);
1450 /* log_debug("Got D-Bus request: %s.%s() on %s", */
1451 /* dbus_message_get_interface(message), */
1452 /* dbus_message_get_member(message), */
1453 /* dbus_message_get_path(message)); */
1455 if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
1456 log_error("Warning! D-Bus connection terminated.");
1457 dbus_connection_close(connection);
1459 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitNew") ||
1460 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitRemoved")) {
1461 const char *id, *path;
1463 if (!dbus_message_get_args(message, &error,
1464 DBUS_TYPE_STRING, &id,
1465 DBUS_TYPE_OBJECT_PATH, &path,
1467 log_error("Failed to parse message: %s", error.message);
1468 else if (streq(dbus_message_get_member(message), "UnitNew"))
1469 printf("Unit %s added.\n", id);
1471 printf("Unit %s removed.\n", id);
1473 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew") ||
1474 dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1478 if (!dbus_message_get_args(message, &error,
1479 DBUS_TYPE_UINT32, &id,
1480 DBUS_TYPE_OBJECT_PATH, &path,
1482 log_error("Failed to parse message: %s", error.message);
1483 else if (streq(dbus_message_get_member(message), "JobNew"))
1484 printf("Job %u added.\n", id);
1486 printf("Job %u removed.\n", id);
1489 } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Unit", "Changed") ||
1490 dbus_message_is_signal(message, "org.freedesktop.systemd1.Job", "Changed")) {
1492 const char *path, *interface, *property = "Id";
1493 DBusMessageIter iter, sub;
1495 path = dbus_message_get_path(message);
1496 interface = dbus_message_get_interface(message);
1498 if (!(m = dbus_message_new_method_call(
1499 "org.freedesktop.systemd1",
1501 "org.freedesktop.DBus.Properties",
1503 log_error("Could not allocate message.");
1507 if (!dbus_message_append_args(m,
1508 DBUS_TYPE_STRING, &interface,
1509 DBUS_TYPE_STRING, &property,
1510 DBUS_TYPE_INVALID)) {
1511 log_error("Could not append arguments to message.");
1515 if (!(reply = dbus_connection_send_with_reply_and_block(connection, m, -1, &error))) {
1516 log_error("Failed to issue method call: %s", error.message);
1520 if (!dbus_message_iter_init(reply, &iter) ||
1521 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1522 log_error("Failed to parse reply.");
1526 dbus_message_iter_recurse(&iter, &sub);
1528 if (streq(interface, "org.freedesktop.systemd1.Unit")) {
1531 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1532 log_error("Failed to parse reply.");
1536 dbus_message_iter_get_basic(&sub, &id);
1537 printf("Unit %s changed.\n", id);
1541 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT32) {
1542 log_error("Failed to parse reply.");
1546 dbus_message_iter_get_basic(&sub, &id);
1547 printf("Job %u changed.\n", id);
1553 dbus_message_unref(m);
1556 dbus_message_unref(reply);
1558 dbus_error_free(&error);
1559 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1563 dbus_message_unref(m);
1566 dbus_message_unref(reply);
1568 dbus_error_free(&error);
1569 return DBUS_HANDLER_RESULT_NEED_MEMORY;
1572 static int monitor(DBusConnection *bus, char **args, unsigned n) {
1573 DBusMessage *m = NULL, *reply = NULL;
1577 dbus_error_init(&error);
1579 dbus_bus_add_match(bus,
1581 "sender='org.freedesktop.systemd1',"
1582 "interface='org.freedesktop.systemd1.Manager',"
1583 "path='/org/freedesktop/systemd1'",
1586 if (dbus_error_is_set(&error)) {
1587 log_error("Failed to add match: %s", error.message);
1592 dbus_bus_add_match(bus,
1594 "sender='org.freedesktop.systemd1',"
1595 "interface='org.freedesktop.systemd1.Unit',"
1599 if (dbus_error_is_set(&error)) {
1600 log_error("Failed to add match: %s", error.message);
1605 dbus_bus_add_match(bus,
1607 "sender='org.freedesktop.systemd1',"
1608 "interface='org.freedesktop.systemd1.Job',"
1612 if (dbus_error_is_set(&error)) {
1613 log_error("Failed to add match: %s", error.message);
1618 if (!dbus_connection_add_filter(bus, monitor_filter, NULL, NULL)) {
1619 log_error("Failed to add filter.");
1624 if (!(m = dbus_message_new_method_call(
1625 "org.freedesktop.systemd1",
1626 "/org/freedesktop/systemd1",
1627 "org.freedesktop.systemd1.Manager",
1629 log_error("Could not allocate message.");
1634 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1635 log_error("Failed to issue method call: %s", error.message);
1640 while (dbus_connection_read_write_dispatch(bus, -1))
1647 /* This is slightly dirty, since we don't undo the filter or the matches. */
1650 dbus_message_unref(m);
1653 dbus_message_unref(reply);
1655 dbus_error_free(&error);
1660 static int dump(DBusConnection *bus, char **args, unsigned n) {
1661 DBusMessage *m = NULL, *reply = NULL;
1666 dbus_error_init(&error);
1668 if (!(m = dbus_message_new_method_call(
1669 "org.freedesktop.systemd1",
1670 "/org/freedesktop/systemd1",
1671 "org.freedesktop.systemd1.Manager",
1673 log_error("Could not allocate message.");
1677 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1678 log_error("Failed to issue method call: %s", error.message);
1683 if (!dbus_message_get_args(reply, &error,
1684 DBUS_TYPE_STRING, &text,
1685 DBUS_TYPE_INVALID)) {
1686 log_error("Failed to parse reply: %s", error.message);
1691 fputs(text, stdout);
1697 dbus_message_unref(m);
1700 dbus_message_unref(reply);
1702 dbus_error_free(&error);
1707 static int snapshot(DBusConnection *bus, char **args, unsigned n) {
1708 DBusMessage *m = NULL, *reply = NULL;
1711 const char *name = "", *path, *id;
1712 dbus_bool_t cleanup = FALSE;
1713 DBusMessageIter iter, sub;
1715 *interface = "org.freedesktop.systemd1.Unit",
1718 dbus_error_init(&error);
1720 if (!(m = dbus_message_new_method_call(
1721 "org.freedesktop.systemd1",
1722 "/org/freedesktop/systemd1",
1723 "org.freedesktop.systemd1.Manager",
1724 "CreateSnapshot"))) {
1725 log_error("Could not allocate message.");
1732 if (!dbus_message_append_args(m,
1733 DBUS_TYPE_STRING, &name,
1734 DBUS_TYPE_BOOLEAN, &cleanup,
1735 DBUS_TYPE_INVALID)) {
1736 log_error("Could not append arguments to message.");
1741 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1742 log_error("Failed to issue method call: %s", error.message);
1747 if (!dbus_message_get_args(reply, &error,
1748 DBUS_TYPE_OBJECT_PATH, &path,
1749 DBUS_TYPE_INVALID)) {
1750 log_error("Failed to parse reply: %s", error.message);
1755 dbus_message_unref(m);
1756 if (!(m = dbus_message_new_method_call(
1757 "org.freedesktop.systemd1",
1759 "org.freedesktop.DBus.Properties",
1761 log_error("Could not allocate message.");
1765 if (!dbus_message_append_args(m,
1766 DBUS_TYPE_STRING, &interface,
1767 DBUS_TYPE_STRING, &property,
1768 DBUS_TYPE_INVALID)) {
1769 log_error("Could not append arguments to message.");
1774 dbus_message_unref(reply);
1775 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1776 log_error("Failed to issue method call: %s", error.message);
1781 if (!dbus_message_iter_init(reply, &iter) ||
1782 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1783 log_error("Failed to parse reply.");
1788 dbus_message_iter_recurse(&iter, &sub);
1790 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) {
1791 log_error("Failed to parse reply.");
1796 dbus_message_iter_get_basic(&sub, &id);
1804 dbus_message_unref(m);
1807 dbus_message_unref(reply);
1809 dbus_error_free(&error);
1814 static int delete_snapshot(DBusConnection *bus, char **args, unsigned n) {
1815 DBusMessage *m = NULL, *reply = NULL;
1823 dbus_error_init(&error);
1825 for (i = 1; i < n; i++) {
1826 const char *path = NULL;
1828 if (!(m = dbus_message_new_method_call(
1829 "org.freedesktop.systemd1",
1830 "/org/freedesktop/systemd1",
1831 "org.freedesktop.systemd1.Manager",
1833 log_error("Could not allocate message.");
1838 if (!dbus_message_append_args(m,
1839 DBUS_TYPE_STRING, &args[i],
1840 DBUS_TYPE_INVALID)) {
1841 log_error("Could not append arguments to message.");
1846 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1847 log_error("Failed to issue method call: %s", error.message);
1852 if (!dbus_message_get_args(reply, &error,
1853 DBUS_TYPE_OBJECT_PATH, &path,
1854 DBUS_TYPE_INVALID)) {
1855 log_error("Failed to parse reply: %s", error.message);
1860 dbus_message_unref(m);
1861 if (!(m = dbus_message_new_method_call(
1862 "org.freedesktop.systemd1",
1864 "org.freedesktop.systemd1.Snapshot",
1866 log_error("Could not allocate message.");
1871 dbus_message_unref(reply);
1872 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1873 log_error("Failed to issue method call: %s", error.message);
1878 dbus_message_unref(m);
1879 dbus_message_unref(reply);
1887 dbus_message_unref(m);
1890 dbus_message_unref(reply);
1892 dbus_error_free(&error);
1897 static int clear_jobs(DBusConnection *bus, char **args, unsigned n) {
1898 DBusMessage *m = NULL, *reply = NULL;
1903 dbus_error_init(&error);
1905 if (arg_action == ACTION_RELOAD)
1907 else if (arg_action == ACTION_REEXEC)
1908 method = "Reexecute";
1910 assert(arg_action == ACTION_SYSTEMCTL);
1913 streq(args[0], "clear-jobs") ? "ClearJobs" :
1914 streq(args[0], "daemon-reload") ? "Reload" :
1915 streq(args[0], "daemon-reexec") ? "Reexecute" :
1919 if (!(m = dbus_message_new_method_call(
1920 "org.freedesktop.systemd1",
1921 "/org/freedesktop/systemd1",
1922 "org.freedesktop.systemd1.Manager",
1924 log_error("Could not allocate message.");
1928 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1930 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
1931 /* There's always a fallback possible for
1932 * legacy actions. */
1937 log_error("Failed to issue method call: %s", error.message);
1946 dbus_message_unref(m);
1949 dbus_message_unref(reply);
1951 dbus_error_free(&error);
1956 static int show_enviroment(DBusConnection *bus, char **args, unsigned n) {
1957 DBusMessage *m = NULL, *reply = NULL;
1959 DBusMessageIter iter, sub, sub2;
1962 *interface = "org.freedesktop.systemd1.Manager",
1963 *property = "Environment";
1965 dbus_error_init(&error);
1967 if (!(m = dbus_message_new_method_call(
1968 "org.freedesktop.systemd1",
1969 "/org/freedesktop/systemd1",
1970 "org.freedesktop.DBus.Properties",
1972 log_error("Could not allocate message.");
1976 if (!dbus_message_append_args(m,
1977 DBUS_TYPE_STRING, &interface,
1978 DBUS_TYPE_STRING, &property,
1979 DBUS_TYPE_INVALID)) {
1980 log_error("Could not append arguments to message.");
1985 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1986 log_error("Failed to issue method call: %s", error.message);
1991 if (!dbus_message_iter_init(reply, &iter) ||
1992 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
1993 log_error("Failed to parse reply.");
1998 dbus_message_iter_recurse(&iter, &sub);
2000 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
2001 dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) {
2002 log_error("Failed to parse reply.");
2007 dbus_message_iter_recurse(&sub, &sub2);
2009 while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
2012 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
2013 log_error("Failed to parse reply.");
2018 dbus_message_iter_get_basic(&sub2, &text);
2019 printf("%s\n", text);
2021 dbus_message_iter_next(&sub2);
2028 dbus_message_unref(m);
2031 dbus_message_unref(reply);
2033 dbus_error_free(&error);
2038 static int set_environment(DBusConnection *bus, char **args, unsigned n) {
2039 DBusMessage *m = NULL, *reply = NULL;
2043 DBusMessageIter iter, sub;
2046 dbus_error_init(&error);
2048 method = streq(args[0], "set-environment")
2050 : "UnsetEnvironment";
2052 if (!(m = dbus_message_new_method_call(
2053 "org.freedesktop.systemd1",
2054 "/org/freedesktop/systemd1",
2055 "org.freedesktop.systemd1.Manager",
2058 log_error("Could not allocate message.");
2062 dbus_message_iter_init_append(m, &iter);
2064 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
2065 log_error("Could not append arguments to message.");
2070 for (i = 1; i < n; i++)
2071 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &args[i])) {
2072 log_error("Could not append arguments to message.");
2077 if (!dbus_message_iter_close_container(&iter, &sub)) {
2078 log_error("Could not append arguments to message.");
2083 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2084 log_error("Failed to issue method call: %s", error.message);
2093 dbus_message_unref(m);
2096 dbus_message_unref(reply);
2098 dbus_error_free(&error);
2103 static int systemctl_help(void) {
2105 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
2106 "Send control commands to the systemd manager.\n\n"
2107 " -h --help Show this help\n"
2108 " -t --type=TYPE List only units of a particular type\n"
2109 " -p --property=NAME Show only property by this name\n"
2110 " -a --all Show all units/properties, including dead/empty ones\n"
2111 " --replace When installing a new job, replace existing conflicting ones\n"
2112 " --system Connect to system bus\n"
2113 " --session Connect to session bus\n"
2114 " -q --quiet Suppress output\n"
2115 " --no-block Do not wait until operation finished\n"
2116 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
2118 " list-units List units\n"
2119 " start [NAME...] Start one or more units\n"
2120 " stop [NAME...] Stop one or more units\n"
2121 " restart [NAME...] Restart one or more units\n"
2122 " reload [NAME...] Reload one or more units\n"
2123 " isolate [NAME] Start one unit and stop all others\n"
2124 " check [NAME...] Check whether any of the passed units are active\n"
2125 " show [NAME...|JOB...] Show information about one or more units\n"
2126 " load [NAME...] Load one or more units\n"
2127 " list-jobs List jobs\n"
2128 " cancel [JOB...] Cancel one or more jobs\n"
2129 " clear-jobs Cancel all jobs\n"
2130 " monitor Monitor unit/job changes\n"
2131 " dump Dump server status\n"
2132 " snapshot [NAME] Create a snapshot\n"
2133 " delete [NAME...] Remove one or more snapshots\n"
2134 " daemon-reload Reload systemd manager configuration\n"
2135 " daemon-reexec Reexecute systemd manager\n"
2136 " daemon-exit Ask the systemd manager to quit\n"
2137 " show-environment Dump environment\n"
2138 " set-environment [NAME=VALUE...] Set one or more environment variables\n"
2139 " unset-environment [NAME...] Unset one or more environment variables\n"
2140 " halt Shut down and halt the system\n"
2141 " poweroff Shut down and power-off the system\n"
2142 " reboot Shut down and reboot the system\n"
2143 " default Enter default mode\n"
2144 " rescue Enter rescue mode\n"
2145 " emergency Enter emergency mode\n",
2146 program_invocation_short_name);
2151 static int halt_help(void) {
2153 printf("%s [OPTIONS...]\n\n"
2154 "%s the system.\n\n"
2155 " --help Show this help\n"
2156 " --halt Halt the machine\n"
2157 " -p --poweroff Switch off the machine\n"
2158 " --reboot Reboot the machine\n"
2159 " -f --force Force immediate halt/power-off/reboot\n"
2160 " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n"
2161 " -d --no-wtmp Don't write wtmp record\n"
2162 " -n --no-sync Don't sync before halt/power-off/reboot\n"
2163 " --no-wall Don't send wall message before halt/power-off/reboot\n",
2164 program_invocation_short_name,
2165 arg_action == ACTION_REBOOT ? "Reboot" :
2166 arg_action == ACTION_POWEROFF ? "Power off" :
2172 static int shutdown_help(void) {
2174 printf("%s [OPTIONS...] [now] [WALL...]\n\n"
2175 "Shut down the system.\n\n"
2176 " --help Show this help\n"
2177 " -H --halt Halt the machine\n"
2178 " -P --poweroff Power-off the machine\n"
2179 " -r --reboot Reboot the machine\n"
2180 " -h Equivalent to --poweroff, overriden by --halt\n"
2181 " -k Don't halt/power-off/reboot, just send warnings\n"
2182 " --no-wall Don't send wall message before halt/power-off/reboot\n",
2183 program_invocation_short_name);
2188 static int telinit_help(void) {
2190 printf("%s [OPTIONS...] {COMMAND}\n\n"
2191 "Send control commands to the init daemon.\n\n"
2192 " --help Show this help\n"
2193 " --no-wall Don't send wall message before halt/power-off/reboot\n\n"
2195 " 0 Power-off the machine\n"
2196 " 6 Reboot the machine\n"
2197 " 2, 3, 4, 5 Start runlevelX.target unit\n"
2198 " 1, s, S Enter rescue mode\n"
2199 " q, Q Reload init daemon configuration\n"
2200 " u, U Reexecute init daemon\n",
2201 program_invocation_short_name);
2206 static int runlevel_help(void) {
2208 printf("%s [OPTIONS...]\n\n"
2209 "Prints the previous and current runlevel of the init system.\n\n"
2210 " --help Show this help\n",
2211 program_invocation_short_name);
2216 static int systemctl_parse_argv(int argc, char *argv[]) {
2219 ARG_REPLACE = 0x100,
2226 static const struct option options[] = {
2227 { "help", no_argument, NULL, 'h' },
2228 { "type", required_argument, NULL, 't' },
2229 { "property", required_argument, NULL, 'p' },
2230 { "all", no_argument, NULL, 'a' },
2231 { "replace", no_argument, NULL, ARG_REPLACE },
2232 { "session", no_argument, NULL, ARG_SESSION },
2233 { "system", no_argument, NULL, ARG_SYSTEM },
2234 { "no-block", no_argument, NULL, ARG_NO_BLOCK },
2235 { "no-wall", no_argument, NULL, ARG_NO_WALL },
2236 { "quiet", no_argument, NULL, 'q' },
2237 { NULL, 0, NULL, 0 }
2245 while ((c = getopt_long(argc, argv, "ht:p:aq", options, NULL)) >= 0) {
2258 arg_property = optarg;
2260 /* If the user asked for a particular
2261 * property, show it to him, even if it is
2279 arg_session = false;
2283 arg_no_block = true;
2298 log_error("Unknown option code %c", c);
2306 static int halt_parse_argv(int argc, char *argv[]) {
2315 static const struct option options[] = {
2316 { "help", no_argument, NULL, ARG_HELP },
2317 { "halt", no_argument, NULL, ARG_HALT },
2318 { "poweroff", no_argument, NULL, 'p' },
2319 { "reboot", no_argument, NULL, ARG_REBOOT },
2320 { "force", no_argument, NULL, 'f' },
2321 { "wtmp-only", no_argument, NULL, 'w' },
2322 { "no-wtmp", no_argument, NULL, 'd' },
2323 { "no-sync", no_argument, NULL, 'n' },
2324 { "no-wall", no_argument, NULL, ARG_NO_WALL },
2325 { NULL, 0, NULL, 0 }
2333 if (utmp_get_runlevel(&runlevel, NULL) >= 0)
2334 if (runlevel == '0' || runlevel == '6')
2335 arg_immediate = true;
2337 while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) {
2345 arg_action = ACTION_HALT;
2349 arg_action = ACTION_POWEROFF;
2353 arg_action = ACTION_REBOOT;
2357 arg_immediate = true;
2378 /* Compatibility nops */
2385 log_error("Unknown option code %c", c);
2390 if (optind < argc) {
2391 log_error("Too many arguments.");
2398 static int shutdown_parse_argv(int argc, char *argv[]) {
2405 static const struct option options[] = {
2406 { "help", no_argument, NULL, ARG_HELP },
2407 { "halt", no_argument, NULL, 'H' },
2408 { "poweroff", no_argument, NULL, 'P' },
2409 { "reboot", no_argument, NULL, 'r' },
2410 { "no-wall", no_argument, NULL, ARG_NO_WALL },
2411 { NULL, 0, NULL, 0 }
2419 while ((c = getopt_long(argc, argv, "HPrhkt:a", options, NULL)) >= 0) {
2427 arg_action = ACTION_HALT;
2431 arg_action = ACTION_POWEROFF;
2435 arg_action = ACTION_REBOOT;
2439 if (arg_action != ACTION_HALT)
2440 arg_action = ACTION_POWEROFF;
2453 /* Compatibility nops */
2460 log_error("Unknown option code %c", c);
2465 if (argc > optind && !streq(argv[optind], "now"))
2466 log_warning("First argument '%s' isn't 'now'. Ignoring.", argv[optind]);
2468 /* We ignore the time argument */
2469 if (argc > optind + 1)
2470 arg_wall = argv + optind + 1;
2477 static int telinit_parse_argv(int argc, char *argv[]) {
2484 static const struct option options[] = {
2485 { "help", no_argument, NULL, ARG_HELP },
2486 { "no-wall", no_argument, NULL, ARG_NO_WALL },
2487 { NULL, 0, NULL, 0 }
2490 static const struct {
2494 { '0', ACTION_POWEROFF },
2495 { '6', ACTION_REBOOT },
2496 { '1', ACTION_RESCUE },
2497 { '2', ACTION_RUNLEVEL2 },
2498 { '3', ACTION_RUNLEVEL3 },
2499 { '4', ACTION_RUNLEVEL4 },
2500 { '5', ACTION_RUNLEVEL5 },
2501 { 's', ACTION_RESCUE },
2502 { 'S', ACTION_RESCUE },
2503 { 'q', ACTION_RELOAD },
2504 { 'Q', ACTION_RELOAD },
2505 { 'u', ACTION_REEXEC },
2506 { 'U', ACTION_REEXEC }
2515 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
2530 log_error("Unknown option code %c", c);
2535 if (optind >= argc) {
2540 if (optind + 1 < argc) {
2541 log_error("Too many arguments.");
2545 if (strlen(argv[optind]) != 1) {
2546 log_error("Expected single character argument.");
2550 for (i = 0; i < ELEMENTSOF(table); i++)
2551 if (table[i].from == argv[optind][0])
2554 if (i >= ELEMENTSOF(table)) {
2555 log_error("Unknown command %s.", argv[optind]);
2559 arg_action = table[i].to;
2566 static int runlevel_parse_argv(int argc, char *argv[]) {
2572 static const struct option options[] = {
2573 { "help", no_argument, NULL, ARG_HELP },
2574 { NULL, 0, NULL, 0 }
2582 while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) {
2593 log_error("Unknown option code %c", c);
2598 if (optind < argc) {
2599 log_error("Too many arguments.");
2606 static int parse_argv(int argc, char *argv[]) {
2610 if (program_invocation_short_name) {
2612 if (strstr(program_invocation_short_name, "halt")) {
2613 arg_action = ACTION_HALT;
2614 return halt_parse_argv(argc, argv);
2615 } else if (strstr(program_invocation_short_name, "poweroff")) {
2616 arg_action = ACTION_POWEROFF;
2617 return halt_parse_argv(argc, argv);
2618 } else if (strstr(program_invocation_short_name, "reboot")) {
2619 arg_action = ACTION_REBOOT;
2620 return halt_parse_argv(argc, argv);
2621 } else if (strstr(program_invocation_short_name, "shutdown")) {
2622 arg_action = ACTION_POWEROFF;
2623 return shutdown_parse_argv(argc, argv);
2624 } else if (strstr(program_invocation_short_name, "init")) {
2625 arg_action = ACTION_INVALID;
2626 return telinit_parse_argv(argc, argv);
2627 } else if (strstr(program_invocation_short_name, "runlevel")) {
2628 arg_action = ACTION_RUNLEVEL;
2629 return runlevel_parse_argv(argc, argv);
2633 arg_action = ACTION_SYSTEMCTL;
2634 return systemctl_parse_argv(argc, argv);
2637 static int action_to_runlevel(void) {
2639 static const char table[_ACTION_MAX] = {
2640 [ACTION_HALT] = '0',
2641 [ACTION_POWEROFF] = '0',
2642 [ACTION_REBOOT] = '6',
2643 [ACTION_RUNLEVEL2] = '2',
2644 [ACTION_RUNLEVEL3] = '3',
2645 [ACTION_RUNLEVEL4] = '4',
2646 [ACTION_RUNLEVEL5] = '5',
2647 [ACTION_RESCUE] = '1'
2650 assert(arg_action < _ACTION_MAX);
2652 return table[arg_action];
2655 static int talk_upstart(void) {
2656 DBusMessage *m = NULL, *reply = NULL;
2658 int previous, rl, r;
2660 env1_buf[] = "RUNLEVEL=X",
2661 env2_buf[] = "PREVLEVEL=X";
2662 char *env1 = env1_buf, *env2 = env2_buf;
2663 const char *emit = "runlevel";
2664 dbus_bool_t b_false = FALSE;
2665 DBusMessageIter iter, sub;
2666 DBusConnection *bus;
2668 dbus_error_init(&error);
2670 if (!(rl = action_to_runlevel()))
2673 if (utmp_get_runlevel(&previous, NULL) < 0)
2676 if (!(bus = dbus_connection_open("unix:abstract=/com/ubuntu/upstart", &error))) {
2677 if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) {
2682 log_error("Failed to connect to Upstart bus: %s", error.message);
2687 if ((r = bus_check_peercred(bus)) < 0) {
2688 log_error("Failed to verify owner of bus.");
2692 if (!(m = dbus_message_new_method_call(
2693 "com.ubuntu.Upstart",
2694 "/com/ubuntu/Upstart",
2695 "com.ubuntu.Upstart0_6",
2698 log_error("Could not allocate message.");
2703 dbus_message_iter_init_append(m, &iter);
2705 env1_buf[sizeof(env1_buf)-2] = rl;
2706 env2_buf[sizeof(env2_buf)-2] = previous;
2708 if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) ||
2709 !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) ||
2710 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) ||
2711 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) ||
2712 !dbus_message_iter_close_container(&iter, &sub) ||
2713 !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) {
2714 log_error("Could not append arguments to message.");
2719 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2721 if (error_is_no_service(&error)) {
2726 log_error("Failed to issue method call: %s", error.message);
2735 dbus_message_unref(m);
2738 dbus_message_unref(reply);
2741 dbus_connection_unref(bus);
2743 dbus_error_free(&error);
2748 static int talk_initctl(void) {
2749 struct init_request request;
2753 if (!(rl = action_to_runlevel()))
2757 request.magic = INIT_MAGIC;
2758 request.sleeptime = 0;
2759 request.cmd = INIT_CMD_RUNLVL;
2760 request.runlevel = rl;
2762 if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) {
2764 if (errno == ENOENT)
2767 log_error("Failed to open "INIT_FIFO": %m");
2772 r = loop_write(fd, &request, sizeof(request), false) != sizeof(request);
2773 close_nointr_nofail(fd);
2776 log_error("Failed to write to "INIT_FIFO": %m");
2777 return errno ? -errno : -EIO;
2783 static int systemctl_main(DBusConnection *bus, int argc, char *argv[]) {
2785 static const struct {
2793 int (* const dispatch)(DBusConnection *bus, char **args, unsigned n);
2795 { "list-units", LESS, 1, list_units },
2796 { "list-jobs", EQUAL, 1, list_jobs },
2797 { "clear-jobs", EQUAL, 1, clear_jobs },
2798 { "load", MORE, 2, load_unit },
2799 { "cancel", MORE, 2, cancel_job },
2800 { "start", MORE, 2, start_unit },
2801 { "stop", MORE, 2, start_unit },
2802 { "reload", MORE, 2, start_unit },
2803 { "restart", MORE, 2, start_unit },
2804 { "isolate", EQUAL, 2, start_unit },
2805 { "check", MORE, 2, check_unit },
2806 { "show", MORE, 1, show },
2807 { "monitor", EQUAL, 1, monitor },
2808 { "dump", EQUAL, 1, dump },
2809 { "snapshot", LESS, 2, snapshot },
2810 { "delete", MORE, 2, delete_snapshot },
2811 { "daemon-reload", EQUAL, 1, clear_jobs },
2812 { "daemon-reexec", EQUAL, 1, clear_jobs },
2813 { "daemon-exit", EQUAL, 1, clear_jobs },
2814 { "show-environment", EQUAL, 1, show_enviroment },
2815 { "set-environment", MORE, 2, set_environment },
2816 { "unset-environment", MORE, 2, set_environment },
2817 { "halt", EQUAL, 1, start_special },
2818 { "poweroff", EQUAL, 1, start_special },
2819 { "reboot", EQUAL, 1, start_special },
2820 { "default", EQUAL, 1, start_special },
2821 { "rescue", EQUAL, 1, start_special },
2822 { "emergency", EQUAL, 1, start_special },
2832 left = argc - optind;
2835 /* Special rule: no arguments means "list-units" */
2838 if (streq(argv[optind], "help")) {
2843 for (i = 0; i < ELEMENTSOF(verbs); i++)
2844 if (streq(argv[optind], verbs[i].verb))
2847 if (i >= ELEMENTSOF(verbs)) {
2848 log_error("Unknown operation %s", argv[optind]);
2853 switch (verbs[i].argc_cmp) {
2856 if (left != verbs[i].argc) {
2857 log_error("Invalid number of arguments.");
2864 if (left < verbs[i].argc) {
2865 log_error("Too few arguments.");
2872 if (left > verbs[i].argc) {
2873 log_error("Too many arguments.");
2880 assert_not_reached("Unknown comparison operator.");
2883 return verbs[i].dispatch(bus, argv + optind, left);
2886 static int reload_with_fallback(DBusConnection *bus) {
2890 /* First, try systemd via D-Bus. */
2891 if ((r = clear_jobs(bus, NULL, 0)) > 0)
2895 /* Nothing else worked, so let's try signals */
2896 assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC);
2898 if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) {
2899 log_error("kill() failed: %m");
2906 static int start_with_fallback(DBusConnection *bus) {
2909 warn_wall(arg_action);
2912 /* First, try systemd via D-Bus. */
2913 if ((r = start_unit(bus, NULL, 0)) > 0)
2916 /* Hmm, talking to systemd via D-Bus didn't work. Then
2917 * let's try to talk to Upstart via D-Bus. */
2918 if ((r = talk_upstart()) > 0)
2922 /* Nothing else worked, so let's try
2924 if ((r = talk_initctl()) != 0)
2927 log_error("Failed to talk to init daemon.");
2931 static int halt_main(DBusConnection *bus) {
2935 return start_with_fallback(bus);
2938 if ((r = utmp_put_shutdown(0)) < 0)
2939 log_warning("Failed to write utmp record: %s", strerror(-r));
2947 /* Make sure C-A-D is handled by the kernel from this
2949 reboot(RB_ENABLE_CAD);
2951 switch (arg_action) {
2954 log_info("Halting");
2955 reboot(RB_HALT_SYSTEM);
2958 case ACTION_POWEROFF:
2959 log_info("Powering off");
2960 reboot(RB_POWER_OFF);
2964 log_info("Rebooting");
2965 reboot(RB_AUTOBOOT);
2969 assert_not_reached("Unknown halt action.");
2972 /* We should never reach this. */
2976 static int runlevel_main(void) {
2977 int r, runlevel, previous;
2979 if ((r = utmp_get_runlevel(&runlevel, &previous)) < 0) {
2985 previous <= 0 ? 'N' : previous,
2986 runlevel <= 0 ? 'N' : runlevel);
2991 int main(int argc, char*argv[]) {
2993 DBusConnection *bus = NULL;
2996 dbus_error_init(&error);
2998 log_parse_environment();
3000 if ((r = parse_argv(argc, argv)) < 0)
3007 /* /sbin/runlevel doesn't need to communicate via D-Bus, so
3008 * let's shortcut this */
3009 if (arg_action == ACTION_RUNLEVEL) {
3010 retval = runlevel_main() < 0;
3014 /* If we are root, then let's not go via the bus */
3015 if (geteuid() == 0 && !arg_session) {
3016 bus = dbus_connection_open("unix:abstract=/org/freedesktop/systemd1/private", &error);
3018 if (bus && bus_check_peercred(bus) < 0) {
3019 log_error("Failed to verify owner of bus.");
3023 bus = dbus_bus_get(arg_session ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &error);
3026 dbus_connection_set_exit_on_disconnect(bus, FALSE);
3028 switch (arg_action) {
3030 case ACTION_SYSTEMCTL: {
3033 log_error("Failed to get D-Bus connection: %s", error.message);
3037 retval = systemctl_main(bus, argc, argv) < 0;
3042 case ACTION_POWEROFF:
3044 retval = halt_main(bus) < 0;
3047 case ACTION_RUNLEVEL2:
3048 case ACTION_RUNLEVEL3:
3049 case ACTION_RUNLEVEL4:
3050 case ACTION_RUNLEVEL5:
3052 case ACTION_EMERGENCY:
3053 case ACTION_DEFAULT:
3054 retval = start_with_fallback(bus) < 0;
3059 retval = reload_with_fallback(bus) < 0;
3062 case ACTION_INVALID:
3063 case ACTION_RUNLEVEL:
3065 assert_not_reached("Unknown action");
3071 dbus_connection_unref(bus);
3073 dbus_error_free(&error);